/* roulang page: index */
:root{
  --orange:#FF6B2C;
  --orange-press:#E5541A;
  --orange-soft:#FFF1E8;
  --cyan:#12C7B8;
  --purple:#7A5CFF;
  --lime:#C6F24E;
  --ink:#17131C;
  --ink-2:#5F5868;
  --ink-3:#8B8494;
  --dark:#121016;
  --dark-2:#1A1622;
  --bg:#F7F4EF;
  --line:rgba(18,16,22,.08);
  --line-dark:rgba(255,255,255,.12);
  --grad:linear-gradient(118deg,#FF6B2C 0%,#FF8A3D 28%,#7A5CFF 68%,#12C7B8 100%);
  --r-sm:12px;
  --r-md:20px;
  --r-lg:24px;
  --r-xl:28px;
  --sh-1:0 1px 2px rgba(18,16,22,.06);
  --sh-2:0 12px 32px -12px rgba(18,16,22,.18);
  --sh-3:0 20px 48px -16px rgba(18,16,22,.28);
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:system-ui,-apple-system,"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",sans-serif;
  font-size:16px;
  line-height:1.75;
  color:var(--ink);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
button,input,select,textarea{font:inherit;color:inherit}
h1,h2,h3,h4,p{margin:0}
ul{margin:0;padding:0;list-style:none}
h1,h2,h3{letter-spacing:-.01em}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 20px}
@media(min-width:640px){.container{padding:0 24px}}
@media(min-width:1024px){.container{padding:0 32px}}
.section{padding:64px 0}
@media(min-width:1024px){.section{padding:96px 0}}
.section-tint{background:#fff}
.section-ink{background:var(--dark);color:#fff}

/* ============ header ============ */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(255,255,255,.94);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  border-bottom:1px solid var(--line);
  transition:box-shadow .25s ease;
}
.site-header.is-scrolled{box-shadow:0 8px 26px -14px rgba(18,16,22,.35)}
.header-top{display:flex;align-items:center;justify-content:space-between;gap:16px;height:72px}
.logo{display:inline-flex;align-items:center;gap:10px;font-weight:700}
.logo-mark{
  width:38px;height:38px;border-radius:12px;background:var(--grad);
  display:grid;place-items:center;color:#fff;font-size:13px;font-weight:700;letter-spacing:.02em;
  box-shadow:0 10px 22px -12px rgba(255,107,44,.9);flex:0 0 auto;
}
.logo-text{font-size:17px;font-weight:700}
.logo-text b{color:var(--orange)}
.header-actions{display:flex;align-items:center;gap:10px}
.menu-btn{
  display:inline-flex;align-items:center;justify-content:center;
  width:42px;height:42px;border-radius:12px;border:1px solid var(--line);background:#fff;
  cursor:pointer;transition:all .2s;
}
.menu-btn:hover{border-color:rgba(255,107,44,.45);color:var(--orange)}
.menu-btn svg{width:18px;height:18px}
.nav-scroll{overflow-x:auto;scrollbar-width:none;-ms-overflow-style:none}
.nav-scroll::-webkit-scrollbar{display:none}
.nav-chips{display:flex;align-items:center;gap:8px;padding:2px 0 14px}
.chip{
  flex:0 0 auto;display:inline-flex;align-items:center;height:38px;padding:0 18px;
  border-radius:999px;border:1px solid transparent;background:transparent;
  font-size:14px;font-weight:500;color:var(--ink-2);white-space:nowrap;
  transition:all .2s ease;
}
.chip:hover{color:var(--orange);background:var(--orange-soft);transform:translateY(-1px)}
.chip.is-active{background:var(--grad);color:#fff;box-shadow:0 10px 22px -12px rgba(255,107,44,.85)}
.drawer{
  display:none;border-top:1px solid var(--line);background:#fff;padding:16px 0 20px;
}
.drawer.is-open{display:block}
.drawer-links{display:flex;flex-direction:column;gap:6px;margin-bottom:14px}
.drawer-links a{padding:12px 14px;border-radius:12px;font-weight:500;color:var(--ink-2);transition:all .2s}
.drawer-links a:hover{background:var(--orange-soft);color:var(--orange)}
@media(min-width:1024px){
  .menu-btn{display:none}
  .drawer{display:none !important}
}

/* ============ buttons ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:14px 24px;border-radius:14px;font-size:15px;font-weight:600;
  border:1px solid transparent;cursor:pointer;line-height:1;transition:all .22s ease;
}
.btn-primary{background:var(--grad);color:#fff;box-shadow:0 12px 28px -14px rgba(255,107,44,.9)}
.btn-primary:hover{transform:translateY(-2px);filter:brightness(1.05);box-shadow:0 18px 36px -14px rgba(255,107,44,.95)}
.btn-primary:active{transform:translateY(1px);background:var(--orange-press);filter:none}
.btn-outline{border:1.5px solid var(--orange);color:var(--orange);background:transparent}
.btn-outline:hover{background:rgba(255,107,44,.08);transform:translateY(-2px)}
.btn-ghost{background:#fff;color:var(--ink);border:1px solid var(--line);box-shadow:var(--sh-1)}
.btn-ghost:hover{transform:translateY(-2px);box-shadow:var(--sh-2);border-color:rgba(255,107,44,.4)}
.btn:focus-visible{outline:3px solid rgba(255,107,44,.35);outline-offset:2px}
.btn-sm{padding:11px 18px;font-size:14px;border-radius:12px}
.link-arrow{
  display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:600;color:var(--orange);
}
.link-arrow span{transition:transform .2s ease}
.link-arrow:hover span{transform:translateX(4px)}

/* ============ hero ============ */
.hero{
  position:relative;overflow:hidden;background:var(--dark);color:#fff;
  padding:64px 0;display:flex;align-items:center;min-height:520px;
}
.hero-bg{
  position:absolute;inset:0;
  background-image:url(/assets/images/backpic/back-1.webp);
  background-size:cover;background-position:center;
  opacity:.18;
}
.hero-mask{
  position:absolute;inset:0;
  background:
    radial-gradient(680px 380px at 12% 18%, rgba(255,107,44,.34), transparent 68%),
    radial-gradient(620px 420px at 88% 82%, rgba(18,199,184,.24), transparent 70%),
    linear-gradient(120deg, rgba(18,16,22,.94) 0%, rgba(18,16,22,.82) 48%, rgba(26,22,34,.9) 100%);
}
.hero-grid{position:relative;z-index:2;display:grid;grid-template-columns:1fr;gap:44px;align-items:center}
.hero-left .eyebrow{color:var(--lime)}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;font-size:12px;font-weight:700;
  letter-spacing:.1em;text-transform:uppercase;margin-bottom:14px;color:var(--orange);
}
.eyebrow::before{content:"";width:18px;height:2px;border-radius:2px;background:var(--grad)}
.hero h1{font-size:30px;line-height:1.28;font-weight:700}
.hero-sub{margin-top:18px;font-size:16px;line-height:1.8;color:rgba(255,255,255,.72);max-width:560px}
.hero-cta{display:flex;flex-wrap:wrap;gap:14px;margin-top:30px}
.hero-cta .btn-ghost{background:rgba(255,255,255,.08);color:#fff;border-color:rgba(255,255,255,.22)}
.hero-cta .btn-ghost:hover{background:rgba(255,255,255,.16);border-color:rgba(255,255,255,.4)}
.hero-points{display:flex;flex-wrap:wrap;gap:10px 22px;margin-top:30px}
.hero-points li{display:flex;align-items:center;gap:8px;font-size:14px;color:rgba(255,255,255,.72)}
.hero-points li::before{
  content:"";width:6px;height:6px;border-radius:50%;background:var(--cyan);flex:0 0 auto;
}
.badge-stack{display:flex;flex-direction:column;gap:16px}
.stat-badge{
  background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.14);
  border-radius:var(--r-md);padding:20px 22px;transition:all .25s ease;
}
.stat-badge:hover{transform:translateY(-4px);border-color:rgba(255,107,44,.55);background:rgba(255,255,255,.09)}
.stat-badge .num{
  font-size:34px;font-weight:700;line-height:1;font-variant-numeric:tabular-nums;
  display:flex;align-items:baseline;gap:6px;
}
.stat-badge .num em{font-style:normal;font-size:14px;font-weight:600;color:var(--cyan)}
.stat-badge .cap{margin-top:8px;font-size:14px;color:rgba(255,255,255,.72);line-height:1.6}
@media(min-width:1024px){
  .hero{padding:88px 0;min-height:620px}
  .hero-grid{grid-template-columns:repeat(12,1fr);gap:48px}
  .hero-left{grid-column:1 / span 6}
  .hero-right{grid-column:8 / span 5}
  .hero h1{font-size:40px;line-height:1.22}
  .badge-stack .stat-badge:nth-child(1){width:80%;margin-left:0}
  .badge-stack .stat-badge:nth-child(2){width:80%;margin-left:20%}
  .badge-stack .stat-badge:nth-child(3){width:80%;margin-left:8%}
}

/* ============ section head ============ */
.section-head{max-width:740px;margin-bottom:38px}
.section-title{font-size:26px;line-height:1.32;font-weight:700}
.section-desc{margin-top:12px;font-size:16px;color:var(--ink-2);line-height:1.8}
.section-ink .section-desc{color:rgba(255,255,255,.72)}
@media(min-width:768px){.section-title{font-size:30px}}

/* ============ cards ============ */
.card{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);
  box-shadow:var(--sh-1);overflow:hidden;transition:all .25s ease;
}
.card:hover{transform:translateY(-4px);box-shadow:var(--sh-2);border-color:rgba(255,107,44,.24)}
.card-body{padding:24px}
.card-title{font-size:19px;font-weight:600;line-height:1.45}
.card-text{margin-top:10px;font-size:15px;color:var(--ink-2);line-height:1.8}
.card-media{position:relative;overflow:hidden;background:var(--orange-soft);aspect-ratio:16/9}
.card-media img{width:100%;height:100%;object-fit:cover;transition:transform .35s ease}
.card:hover .card-media img{transform:scale(1.03)}
.tag{
  display:inline-flex;align-items:center;height:26px;padding:0 12px;border-radius:999px;
  font-size:12px;font-weight:600;background:var(--orange-soft);color:var(--orange-press);
}
.tag-cyan{background:rgba(18,199,184,.12);color:#0C9E92}
.tag-purple{background:rgba(122,92,255,.12);color:#5B3EE0}
.tag-lime{background:rgba(198,242,78,.35);color:#4C6B00}

/* ============ capability (asymmetric) ============ */
.cap-grid{display:grid;grid-template-columns:1fr;gap:24px}
.cap-side{display:grid;grid-template-columns:1fr;gap:24px}
@media(min-width:1024px){
  .cap-grid{grid-template-columns:1.12fr .88fr;align-items:stretch}
  .cap-side{align-content:stretch}
}
.cap-main{display:flex;flex-direction:column}
.cap-main .card-body{padding:28px}
.cap-list{margin-top:18px;display:flex;flex-direction:column;gap:12px}
.cap-list li{display:flex;gap:10px;font-size:15px;color:var(--ink-2)}
.cap-list li::before{
  content:"";width:8px;height:8px;margin-top:9px;border-radius:3px;background:var(--grad);flex:0 0 auto;
}
.cap-side .card{display:flex;flex-direction:column;height:100%}
.cap-side .card-body{display:flex;flex-direction:column;gap:10px;flex:1}

/* ============ stats band ============ */
.stats-band{position:relative;overflow:hidden;background:var(--dark-2);color:#fff;padding:64px 0}
.stats-band .band-bg{
  position:absolute;inset:0;background-image:url(/assets/images/backpic/back-2.webp);
  background-size:cover;background-position:center;opacity:.12;
}
.stats-band .band-mask{
  position:absolute;inset:0;
  background:linear-gradient(110deg, rgba(18,16,22,.96), rgba(26,22,34,.86) 55%, rgba(18,16,22,.94));
}
.stats-inner{position:relative;z-index:2}
.stats-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:20px;margin-top:34px}
.stat-cell{
  background:rgba(255,255,255,.05);border:1px solid var(--line-dark);
  border-radius:var(--r-md);padding:22px 20px;transition:all .25s ease;
}
.stat-cell:hover{transform:translateY(-4px);border-color:rgba(255,107,44,.5);background:rgba(255,255,255,.08)}
.stat-cell .val{
  font-size:38px;font-weight:700;line-height:1;font-variant-numeric:tabular-nums;
  display:flex;align-items:baseline;gap:4px;
}
.stat-cell .val small{font-size:15px;font-weight:600;color:var(--cyan)}
.stat-cell .lbl{margin-top:10px;font-size:15px;color:#fff;font-weight:600}
.stat-cell .desc{margin-top:6px;font-size:14px;color:rgba(255,255,255,.66);line-height:1.7}
@media(min-width:768px){
  .stats-grid{grid-template-columns:repeat(4,1fr);gap:22px}
  .stat-cell .val{font-size:46px}
}
@media(min-width:1024px){.stats-band{padding:88px 0}}

/* ============ cases ============ */
.case-grid{display:grid;grid-template-columns:1fr;gap:24px}
@media(min-width:768px){.case-grid{grid-template-columns:1fr 1fr}}
@media(min-width:1024px){.case-grid .case-card:nth-child(2){margin-top:44px}}
.case-card{display:flex;flex-direction:column}
.case-card .card-body{display:flex;flex-direction:column;gap:12px;flex:1}
.case-meta{display:flex;align-items:center;gap:10px;flex-wrap:wrap}
.case-text{font-size:15px;color:var(--ink-2);line-height:1.8;flex:1}

/* ============ plans (tabs) ============ */
.tabs{
  display:flex;gap:6px;overflow-x:auto;scrollbar-width:none;
  border-bottom:1px solid var(--line);margin-bottom:34px;
}
.tabs::-webkit-scrollbar{display:none}
.tab{
  position:relative;flex:0 0 auto;padding:13px 20px;background:none;border:0;
  font-size:15px;font-weight:600;color:var(--ink-2);cursor:pointer;
  transition:color .2s ease;white-space:nowrap;
}
.tab:hover{color:var(--orange)}
.tab.is-active{color:var(--ink)}
.tab.is-active::after{
  content:"";position:absolute;left:14px;right:14px;bottom:-1px;height:3px;
  border-radius:3px;background:var(--grad);
}
.tab:focus-visible{outline:3px solid rgba(255,107,44,.3);outline-offset:-2px;border-radius:10px}
.tab-panel{display:none}
.tab-panel.is-active{display:block;animation:fadeUp .3s ease}
@keyframes fadeUp{from{opacity:0;transform:translateY(8px)}to{opacity:1;transform:none}}
.plan-grid{display:grid;grid-template-columns:1fr;gap:28px}
@media(min-width:1024px){.plan-grid{grid-template-columns:1fr 1fr;gap:44px;align-items:start}}
.plan-copy h3{font-size:22px;font-weight:700;line-height:1.4}
.plan-copy p{margin-top:14px;font-size:16px;color:var(--ink-2);line-height:1.85}
.plan-note{
  margin-top:20px;padding:16px 18px;border-radius:var(--r-sm);
  background:var(--orange-soft);border-left:4px solid var(--orange);
  font-size:14px;color:var(--ink-2);line-height:1.75;
}
.check-list{display:flex;flex-direction:column;gap:12px}
.check-list li{
  display:flex;gap:12px;align-items:flex-start;background:#fff;border:1px solid var(--line);
  border-radius:var(--r-sm);padding:14px 16px;font-size:15px;color:var(--ink-2);
  box-shadow:var(--sh-1);transition:all .2s ease;
}
.check-list li:hover{transform:translateX(4px);border-color:rgba(255,107,44,.28)}
.check-list li b{display:block;color:var(--ink);font-weight:600;margin-bottom:2px;font-size:15px}
.check-icon{
  width:22px;height:22px;border-radius:50%;background:var(--grad);color:#fff;
  display:grid;place-items:center;font-size:12px;flex:0 0 auto;margin-top:3px;
}

/* ============ news ============ */
.news-head{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;flex-wrap:wrap;margin-bottom:34px}
.news-grid{display:grid;grid-template-columns:1fr;gap:24px}
@media(min-width:640px){.news-grid{grid-template-columns:repeat(2,1fr)}}
@media(min-width:1024px){.news-grid{grid-template-columns:repeat(3,1fr)}}
.news-card{display:flex;flex-direction:column}
.news-card .card-body{display:flex;flex-direction:column;gap:10px;flex:1}
.news-title{font-size:17px;font-weight:600;line-height:1.5}
.news-title a:hover{color:var(--orange)}
.news-summary{
  font-size:14px;color:var(--ink-2);line-height:1.75;flex:1;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.news-meta{display:flex;align-items:center;gap:10px;flex-wrap:wrap;font-size:13px;color:var(--ink-3)}
.empty-state{
  grid-column:1/-1;text-align:center;padding:56px 24px;background:#fff;
  border:1px dashed rgba(18,16,22,.16);border-radius:var(--r-lg);
}
.empty-art{
  width:76px;height:76px;margin:0 auto 18px;border-radius:22px;background:var(--grad);opacity:.9;
  display:grid;place-items:center;color:#fff;font-size:26px;font-weight:700;
}
.empty-state p{color:var(--ink-2);margin-bottom:18px}

/* ============ faq ============ */
.faq{max-width:880px;margin:0 auto}
.faq-item{
  background:#fff;border:1px solid var(--line);border-radius:16px;margin-bottom:12px;
  overflow:hidden;transition:all .22s ease;box-shadow:var(--sh-1);
}
.faq-item:hover{border-color:rgba(255,107,44,.28)}
.faq-item.is-open{border-color:rgba(255,107,44,.38);box-shadow:var(--sh-2);background:#fff}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:18px 22px;background:none;border:0;text-align:left;cursor:pointer;
  font-size:17px;font-weight:600;line-height:1.6;transition:color .2s;
}
.faq-q:hover{color:var(--orange)}
.faq-q:focus-visible{outline:3px solid rgba(255,107,44,.3);outline-offset:-3px}
.faq-icon{
  flex:0 0 auto;width:26px;height:26px;border-radius:50%;border:1px solid var(--line);
  display:grid;place-items:center;font-size:16px;line-height:1;color:var(--orange);
  transition:all .22s ease;
}
.faq-item.is-open .faq-icon{background:var(--grad);color:#fff;border-color:transparent;transform:rotate(180deg)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .24s ease}
.faq-a-inner{padding:0 22px 20px;font-size:15px;color:var(--ink-2);line-height:1.85}

/* ============ contact ============ */
.contact-grid{display:grid;grid-template-columns:1fr;gap:28px}
@media(min-width:1024px){.contact-grid{grid-template-columns:1.1fr .9fr;gap:40px;align-items:start}}
.form-card{background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);padding:28px;box-shadow:var(--sh-2)}
.field{margin-bottom:16px}
.field label{display:block;font-size:14px;font-weight:600;margin-bottom:8px}
.field .req{color:var(--orange)}
.field input,.field select,.field textarea{
  width:100%;border:1px solid var(--line);border-radius:12px;background:#fff;
  padding:0 14px;height:48px;font-size:15px;transition:all .2s ease;
}
.field textarea{height:auto;min-height:118px;padding:12px 14px;line-height:1.7;resize:vertical}
.field input:focus,.field select:focus,.field textarea:focus{
  outline:0;border-color:var(--orange);box-shadow:0 0 0 3px rgba(255,107,44,.16);
}
.field input::placeholder,.field textarea::placeholder{color:var(--ink-3)}
.form-hint{font-size:13px;color:var(--ink-3);margin-top:12px;line-height:1.7}
.info-card{
  background:var(--dark);color:#fff;border-radius:var(--r-lg);padding:28px;
  box-shadow:var(--sh-3);
}
.info-card h3{font-size:20px;font-weight:600}
.info-list{margin-top:22px;display:flex;flex-direction:column;gap:16px}
.info-list li{display:flex;gap:14px;align-items:flex-start}
.info-dot{
  width:34px;height:34px;border-radius:11px;background:rgba(255,255,255,.08);
  border:1px solid var(--line-dark);display:grid;place-items:center;flex:0 0 auto;
  font-size:15px;color:var(--cyan);
}
.info-list b{display:block;font-size:15px;font-weight:600}
.info-list span{display:block;font-size:14px;color:rgba(255,255,255,.66);margin-top:2px;line-height:1.7}

/* ============ footer ============ */
.site-footer{background:var(--dark);color:#fff;padding:64px 0 0;margin-top:0}
.footer-grid{display:grid;grid-template-columns:1fr;gap:34px}
@media(min-width:640px){.footer-grid{grid-template-columns:1fr 1fr}}
@media(min-width:1024px){.footer-grid{grid-template-columns:2fr 1fr 1fr 1fr;gap:40px}}
.footer-brand .logo-text{color:#fff}
.footer-brand p{margin-top:16px;font-size:14px;color:rgba(255,255,255,.66);line-height:1.85;max-width:340px}
.footer-col h4{font-size:15px;font-weight:600;margin-bottom:16px}
.footer-col ul{display:flex;flex-direction:column;gap:10px}
.footer-col a{font-size:14px;color:rgba(255,255,255,.66);transition:color .2s ease}
.footer-col a:hover{color:var(--cyan)}
.footer-bottom{
  margin-top:52px;border-top:1px solid var(--line-dark);padding:22px 0;
  display:flex;flex-wrap:wrap;gap:10px;justify-content:space-between;align-items:center;
  font-size:13px;color:rgba(255,255,255,.5);
}
.footer-bottom a:hover{color:var(--cyan)}

.sr-only{
  position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;
  clip:rect(0,0,0,0);white-space:nowrap;border:0;
}

/* roulang page: article */
:root{
  --brand:#FF6B2C;
  --brand-press:#E5541A;
  --brand-soft:#FFF1E8;
  --cyan:#12C7B8;
  --violet:#7A5CFF;
  --lime:#C6F24E;
  --ink:#17131C;
  --ink-2:#5F5868;
  --ink-3:#8B8494;
  --dark:#121016;
  --dark-2:#1A1622;
  --deep:#F7F4EF;
  --line:rgba(18,16,22,.08);
  --grad:linear-gradient(118deg,#FF6B2C 0%,#FF8A3D 28%,#7A5CFF 68%,#12C7B8 100%);
  --r-sm:12px;
  --r-md:14px;
  --r-lg:22px;
  --r-xl:28px;
  --sh-1:0 1px 2px rgba(18,16,22,.06);
  --sh-2:0 12px 32px -12px rgba(18,16,22,.18);
  --ease:cubic-bezier(.22,.61,.36,1);
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:system-ui,-apple-system,"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",sans-serif;
  font-size:16px;
  line-height:1.75;
  color:var(--ink);
  background:var(--deep);
  font-variant-numeric:tabular-nums;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
button{font:inherit;cursor:pointer}
h1,h2,h3,h4,p,ul,ol{margin:0}
ul,ol{padding:0;list-style:none}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 20px}
@media (min-width:768px){.container{padding:0 24px}}
@media (min-width:1024px){.container{padding:0 32px}}

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(247,244,239,.92);
  backdrop-filter:blur(12px);
  border-bottom:1px solid var(--line);
  transition:box-shadow .25s var(--ease),background .25s var(--ease);
}
.site-header.is-stuck{box-shadow:0 8px 24px -16px rgba(18,16,22,.35);background:rgba(247,244,239,.98)}
.header-inner{
  display:flex;align-items:center;gap:18px;
  min-height:72px;flex-wrap:wrap;
  padding-top:10px;padding-bottom:10px;
}
.logo{display:inline-flex;align-items:center;gap:10px;flex-shrink:0}
.logo-mark{
  width:38px;height:38px;border-radius:12px;
  background:var(--grad);color:#fff;
  display:inline-flex;align-items:center;justify-content:center;
  font-weight:700;font-size:15px;letter-spacing:.02em;
  box-shadow:0 8px 18px -10px rgba(255,107,44,.9);
}
.logo-text{font-size:18px;font-weight:700;letter-spacing:.01em;color:var(--ink)}
.logo-text b{color:var(--brand);font-weight:700}
.header-cta{margin-left:auto;display:flex;align-items:center;gap:10px}

.nav-chips{
  order:3;width:100%;
  display:flex;gap:8px;align-items:center;
  overflow-x:auto;padding:2px 0 8px;
  scrollbar-width:none;
}
.nav-chips::-webkit-scrollbar{display:none}
.chip{
  flex:0 0 auto;
  display:inline-flex;align-items:center;
  height:38px;padding:0 16px;
  border-radius:999px;
  border:1px solid transparent;
  background:rgba(18,16,22,.04);
  color:var(--ink-2);
  font-size:14px;font-weight:600;white-space:nowrap;
  transition:transform .2s var(--ease),background .2s var(--ease),color .2s var(--ease),box-shadow .2s var(--ease);
}
.chip:hover{transform:translateY(-2px);background:rgba(255,107,44,.10);color:var(--brand-press)}
.chip.is-active{background:var(--grad);color:#fff;box-shadow:0 10px 22px -14px rgba(122,92,255,.95)}
.chip:focus-visible{outline:3px solid rgba(255,107,44,.35);outline-offset:2px}

@media (min-width:1024px){
  .header-inner{flex-wrap:nowrap;min-height:76px}
  .nav-chips{order:2;width:auto;margin-left:26px;padding-bottom:2px;overflow:visible}
  .header-cta{order:3}
}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  border-radius:14px;border:1px solid transparent;
  padding:13px 22px;font-size:15px;font-weight:600;
  transition:transform .18s var(--ease),box-shadow .18s var(--ease),background .18s var(--ease),color .18s var(--ease),border-color .18s var(--ease);
}
.btn-primary{background:var(--grad);color:#fff;box-shadow:0 14px 28px -16px rgba(255,107,44,.95)}
.btn-primary:hover{transform:translateY(-2px);filter:brightness(1.05);box-shadow:0 20px 34px -16px rgba(255,107,44,.95)}
.btn-primary:active{transform:translateY(0);background:var(--brand-press)}
.btn-ghost{border:1.5px solid var(--brand);color:var(--brand-press);background:transparent}
.btn-ghost:hover{background:rgba(255,107,44,.08);transform:translateY(-2px)}
.btn-light{background:#fff;color:var(--ink);border-color:var(--line);box-shadow:var(--sh-1)}
.btn-light:hover{transform:translateY(-2px);box-shadow:var(--sh-2);border-color:rgba(255,107,44,.35)}
.btn:focus-visible{outline:3px solid rgba(255,107,44,.35);outline-offset:2px}
.btn-sm{padding:10px 16px;font-size:14px;border-radius:999px}

/* ---------- page top ---------- */
.page-band{
  position:relative;overflow:hidden;
  background-color:var(--dark);
  color:#fff;
  padding:38px 0 44px;
}
.page-band::before{
  content:"";position:absolute;inset:0;
  background-image:url('/assets/images/backpic/back-2.webp');
  background-size:cover;background-position:center;
  opacity:.18;
}
.page-band::after{
  content:"";position:absolute;inset:0;
  background:var(--grad);opacity:.30;
  mix-blend-mode:screen;
}
.page-band .container{position:relative;z-index:2}
.crumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:rgba(255,255,255,.72)}
.crumb a:hover{color:var(--lime)}
.crumb .sep{color:rgba(255,255,255,.38)}
.crumb .now{color:#fff;max-width:100%;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.cat-tag{
  display:inline-flex;align-items:center;gap:6px;
  padding:6px 14px;border-radius:999px;
  background:rgba(255,255,255,.12);border:1px solid rgba(255,255,255,.22);
  font-size:12px;font-weight:600;letter-spacing:.02em;color:#fff;
}
.page-title{
  margin-top:16px;
  font-size:30px;line-height:1.3;font-weight:700;
  letter-spacing:-.01em;max-width:900px;
}
.page-meta{
  margin-top:16px;display:flex;flex-wrap:wrap;gap:10px 18px;
  font-size:13px;color:rgba(255,255,255,.72);
}
.page-meta span{display:inline-flex;align-items:center;gap:6px}
.page-meta i{width:6px;height:6px;border-radius:50%;background:var(--lime);display:inline-block}
@media (min-width:1024px){
  .page-band{padding:52px 0 64px}
  .page-title{font-size:40px;line-height:1.22}
}

/* ---------- article layout ---------- */
.article-wrap{padding:44px 0 72px;background:#fff}
.article-layout{display:grid;grid-template-columns:1fr;gap:36px}
@media (min-width:1024px){
  .article-layout{grid-template-columns:minmax(0,1fr) 320px;gap:52px}
}
.article-shell{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-xl);
  padding:26px 20px;box-shadow:var(--sh-1);
}
@media (min-width:768px){.article-shell{padding:38px 40px}}
.article-lead{
  display:flex;gap:14px;align-items:flex-start;
  padding:14px 16px;border-radius:var(--r-md);
  background:var(--brand-soft);border:1px solid rgba(255,107,44,.18);
  font-size:14px;color:var(--ink-2);margin-bottom:26px;
}
.article-lead strong{color:var(--brand-press)}

.article-body{max-width:780px;font-size:17px;line-height:1.9;color:#241E2C}
.article-body p{margin:0 0 20px}
.article-body h2{
  position:relative;
  margin:44px 0 18px;padding-left:16px;
  font-size:24px;line-height:1.45;font-weight:700;color:var(--ink);
}
.article-body h2::before{
  content:"";position:absolute;left:0;top:.18em;bottom:.18em;width:4px;border-radius:4px;
  background:var(--grad);
}
.article-body h3{margin:30px 0 14px;font-size:20px;line-height:1.5;font-weight:600;color:var(--ink)}
.article-body ul,.article-body ol{margin:0 0 22px;padding-left:4px}
.article-body li{position:relative;padding-left:22px;margin-bottom:10px}
.article-body ul>li::before{
  content:"";position:absolute;left:2px;top:.72em;width:8px;height:8px;border-radius:3px;
  background:var(--grad);
}
.article-body ol{counter-reset:li}
.article-body ol>li{counter-increment:li}
.article-body ol>li::before{
  content:counter(li);position:absolute;left:0;top:.15em;
  width:18px;height:18px;border-radius:6px;background:var(--brand-soft);
  color:var(--brand-press);font-size:12px;font-weight:700;
  display:flex;align-items:center;justify-content:center;
}
.article-body blockquote{
  margin:26px 0;padding:18px 20px;
  background:var(--deep);border-left:4px solid var(--cyan);
  border-radius:0 var(--r-md) var(--r-md) 0;
  color:var(--ink-2);font-size:16px;
}
.article-body blockquote p:last-child{margin-bottom:0}
.article-body img{border-radius:16px;margin:22px 0;box-shadow:var(--sh-1)}
.article-body figure{margin:24px 0}
.article-body figcaption{margin-top:10px;font-size:13px;color:var(--ink-3);text-align:center}
.article-body a{color:var(--brand-press);border-bottom:1px solid rgba(255,107,44,.4)}
.article-body a:hover{color:var(--violet);border-color:rgba(122,92,255,.45)}
.article-body table{
  width:100%;display:block;overflow-x:auto;border-collapse:collapse;
  margin:24px 0;font-size:15px;border-radius:var(--r-md);
}
.article-body th,.article-body td{
  border:1px solid var(--line);padding:11px 14px;text-align:left;white-space:nowrap;
}
.article-body th{background:var(--deep);font-weight:600}
.article-body code{
  background:var(--deep);padding:2px 6px;border-radius:6px;font-size:14px;color:var(--violet);
}
.article-body hr{border:0;border-top:1px solid var(--line);margin:34px 0}

.empty-state{
  padding:44px 24px;border:1px dashed rgba(18,16,22,.18);border-radius:var(--r-lg);
  background:var(--deep);text-align:center;
}
.empty-state h2{font-size:22px;font-weight:700;margin-bottom:10px}
.empty-state p{color:var(--ink-2);font-size:15px;margin-bottom:20px}

/* ---------- aside ---------- */
.article-aside{display:flex;flex-direction:column;gap:20px}
@media (min-width:1024px){
  .article-aside{position:sticky;top:104px;align-self:start}
}
.side-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);
  padding:20px;box-shadow:var(--sh-1);
}
.side-card h3{
  font-size:15px;font-weight:700;letter-spacing:.02em;color:var(--ink);
  display:flex;align-items:center;gap:8px;margin-bottom:14px;
}
.side-card h3::before{content:"";width:8px;height:8px;border-radius:50%;background:var(--grad)}
.toc-toggle{
  display:flex;width:100%;align-items:center;justify-content:space-between;
  background:none;border:0;padding:0;font-size:15px;font-weight:700;color:var(--ink);
}
.toc-toggle i{font-style:normal;color:var(--brand);font-size:18px;line-height:1}
.toc-list{margin-top:14px;display:flex;flex-direction:column;gap:2px}
.toc-list.is-collapsed{display:none}
@media (min-width:1024px){.toc-list.is-collapsed{display:flex}.toc-toggle{cursor:default}.toc-toggle i{display:none}}
.toc-link{
  display:block;padding:7px 10px;border-radius:10px;
  font-size:14px;color:var(--ink-2);border-left:2px solid transparent;
  transition:background .18s var(--ease),color .18s var(--ease),border-color .18s var(--ease);
}
.toc-link:hover{background:var(--brand-soft);color:var(--brand-press);border-left-color:var(--brand)}
.toc-link.is-sub{padding-left:22px;font-size:13px;color:var(--ink-3)}
.side-empty{font-size:13px;color:var(--ink-3)}
.side-links{display:flex;flex-direction:column;gap:8px}
.side-links a{
  display:flex;align-items:center;gap:10px;
  padding:10px 12px;border-radius:var(--r-sm);
  background:var(--deep);border:1px solid transparent;
  font-size:14px;font-weight:600;color:var(--ink-2);
  transition:transform .18s var(--ease),border-color .18s var(--ease),color .18s var(--ease),background .18s var(--ease);
}
.side-links a:hover{transform:translateX(3px);border-color:rgba(255,107,44,.35);color:var(--brand-press);background:#fff}
.side-links a span.dot{width:8px;height:8px;border-radius:50%;background:var(--grad);flex:0 0 auto}
.side-note{font-size:13px;color:var(--ink-3);line-height:1.8}

/* ---------- related ---------- */
.related{padding:64px 0;background:var(--deep);border-top:1px solid var(--line)}
.section-head{display:flex;flex-wrap:wrap;align-items:flex-end;gap:12px;margin-bottom:26px}
.section-head h2{font-size:24px;font-weight:700;letter-spacing:-.01em}
.section-head p{font-size:14px;color:var(--ink-2)}
.grid-cards{display:grid;grid-template-columns:1fr;gap:20px}
@media (min-width:640px){.grid-cards{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media (min-width:1024px){.grid-cards{grid-template-columns:repeat(3,minmax(0,1fr))}}
.card{
  display:flex;flex-direction:column;
  background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);
  overflow:hidden;box-shadow:var(--sh-1);
  transition:transform .22s var(--ease),box-shadow .22s var(--ease),border-color .22s var(--ease);
}
.card:hover{transform:translateY(-4px);box-shadow:var(--sh-2);border-color:rgba(255,107,44,.28)}
.card-cover{position:relative;aspect-ratio:16/9;background:var(--grad);overflow:hidden}
.card-cover img{width:100%;height:100%;object-fit:cover;transition:transform .4s var(--ease)}
.card:hover .card-cover img{transform:scale(1.04)}
.card-body{padding:20px;display:flex;flex-direction:column;gap:10px;flex:1}
.card-tag{
  align-self:flex-start;padding:4px 11px;border-radius:999px;
  background:var(--brand-soft);color:var(--brand-press);
  font-size:12px;font-weight:700;letter-spacing:.02em;
}
.card h3{font-size:18px;line-height:1.5;font-weight:600}
.card p{font-size:14px;color:var(--ink-2);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.card-foot{
  margin-top:auto;display:flex;align-items:center;justify-content:space-between;
  font-size:13px;color:var(--ink-3);
}
.arrow-link{display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:600;color:var(--brand-press)}
.arrow-link b{transition:transform .2s var(--ease)}
.arrow-link:hover b{transform:translateX(4px)}

/* ---------- cta ---------- */
.cta-band{padding:64px 0;background:var(--dark);position:relative;overflow:hidden}
.cta-band::before{
  content:"";position:absolute;inset:0;
  background-image:url('/assets/images/backpic/back-1.webp');
  background-size:cover;background-position:center;opacity:.14;
}
.cta-band::after{
  content:"";position:absolute;inset:0;background:var(--grad);opacity:.22;
}
.cta-inner{
  position:relative;z-index:2;
  display:flex;flex-wrap:wrap;gap:24px;align-items:center;justify-content:space-between;
}
.cta-inner h2{font-size:26px;line-height:1.35;font-weight:700;color:#fff;max-width:560px}
.cta-inner p{margin-top:10px;font-size:15px;color:rgba(255,255,255,.76);max-width:560px}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px}
.btn-on-dark{border:1.5px solid rgba(255,255,255,.55);color:#fff;background:transparent}
.btn-on-dark:hover{background:rgba(255,255,255,.12);transform:translateY(-2px)}

/* ---------- footer ---------- */
.site-footer{background:var(--dark);color:rgba(255,255,255,.72);padding:56px 0 26px}
.footer-grid{display:grid;grid-template-columns:1fr;gap:32px}
@media (min-width:768px){.footer-grid{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media (min-width:1024px){.footer-grid{grid-template-columns:2fr 1fr 1fr 1fr;gap:40px}}
.footer-brand .logo-text{color:#fff}
.footer-brand p{margin-top:16px;font-size:14px;line-height:1.85;max-width:420px}
.footer-col h4{font-size:14px;font-weight:700;color:#fff;margin-bottom:14px;letter-spacing:.02em}
.footer-col ul{display:flex;flex-direction:column;gap:10px}
.footer-col a{font-size:14px;transition:color .18s var(--ease)}
.footer-col a:hover{color:var(--cyan)}
.footer-bottom{
  margin-top:38px;padding-top:18px;border-top:1px solid rgba(255,255,255,.12);
  display:flex;flex-wrap:wrap;gap:10px;justify-content:space-between;
  font-size:13px;color:rgba(255,255,255,.55);
}

/* ---------- misc ---------- */
.to-top{
  position:fixed;right:18px;bottom:22px;z-index:50;
  width:44px;height:44px;border-radius:14px;border:1px solid var(--line);
  background:#fff;color:var(--brand-press);box-shadow:var(--sh-2);
  display:flex;align-items:center;justify-content:center;
  opacity:0;pointer-events:none;transition:opacity .2s var(--ease),transform .2s var(--ease);
}
.to-top.is-on{opacity:1;pointer-events:auto}
.to-top:hover{transform:translateY(-3px)}

/* roulang page: category1 */
:root{
  --brand:#FF6B2C;
  --brand-deep:#E5541A;
  --brand-soft:#FFF1E8;
  --cyan:#12C7B8;
  --violet:#7A5CFF;
  --lime:#C6F24E;
  --dark:#121016;
  --dark-2:#1A1622;
  --bg:#F7F4EF;
  --surface:#FFFFFF;
  --line:rgba(18,16,22,.08);
  --text:#17131C;
  --text-2:#5F5868;
  --text-3:#8B8494;
  --grad:linear-gradient(118deg,#FF6B2C 0%,#FF8A3D 28%,#7A5CFF 68%,#12C7B8 100%);
  --r-xs:12px;
  --r-sm:14px;
  --r-md:20px;
  --r-lg:24px;
  --r-xl:28px;
  --sh-1:0 1px 2px rgba(18,16,22,.06);
  --sh-2:0 12px 32px -12px rgba(18,16,22,.18);
  --sh-3:0 18px 44px -16px rgba(18,16,22,.28);
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:system-ui,-apple-system,"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",sans-serif;
  font-size:16px;
  line-height:1.75;
  color:var(--text);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;}
button,input,textarea,select{font:inherit;color:inherit;}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4,p{margin:0;}
.num{font-variant-numeric:tabular-nums;}

.container{
  width:100%;
  max-width:1200px;
  margin:0 auto;
  padding-left:20px;
  padding-right:20px;
}
@media(min-width:640px){.container{padding-left:24px;padding-right:24px;}}
@media(min-width:1024px){.container{padding-left:32px;padding-right:32px;}}

/* ---------- Header ---------- */
.site-header{
  position:sticky;
  top:0;
  z-index:60;
  background:rgba(247,244,239,.92);
  backdrop-filter:blur(12px);
  border-bottom:1px solid var(--line);
  transition:box-shadow .25s ease,background .25s ease;
}
.site-header.is-scrolled{box-shadow:0 10px 28px -18px rgba(18,16,22,.35);background:rgba(255,255,255,.94);}
.header-top{
  height:72px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:18px;
}
.logo{display:inline-flex;align-items:center;gap:10px;font-weight:700;}
.logo-mark{
  width:38px;height:38px;border-radius:12px;
  background:var(--grad);
  color:#fff;
  display:flex;align-items:center;justify-content:center;
  font-size:15px;letter-spacing:.5px;
  box-shadow:0 8px 18px -10px rgba(255,107,44,.9);
}
.logo-text{font-size:18px;letter-spacing:.2px;color:var(--text);}
.logo-text b{font-weight:700;background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent;}
.header-cta{display:flex;align-items:center;gap:12px;}
.header-actions{display:none;align-items:center;gap:12px;}
@media(min-width:768px){.header-actions{display:flex;}}

.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  border:none;cursor:pointer;
  border-radius:999px;
  padding:12px 22px;
  font-size:15px;font-weight:600;
  transition:transform .2s ease,box-shadow .2s ease,filter .2s ease,background .2s ease,color .2s ease;
  white-space:nowrap;
}
.btn-primary{
  background:var(--grad);
  color:#fff;
  box-shadow:0 10px 24px -12px rgba(255,107,44,.85);
}
.btn-primary:hover{transform:translateY(-2px);filter:brightness(1.05);box-shadow:0 16px 30px -14px rgba(255,107,44,.95);}
.btn-primary:active{transform:translateY(0);}
.btn-ghost{
  background:transparent;
  color:var(--brand-deep);
  border:1.5px solid var(--brand);
  padding:11px 21px;
}
.btn-ghost:hover{background:rgba(255,107,44,.08);transform:translateY(-2px);}
.btn-dark{
  background:rgba(255,255,255,.1);
  color:#fff;
  border:1.5px solid rgba(255,255,255,.3);
}
.btn-dark:hover{background:rgba(255,255,255,.18);transform:translateY(-2px);}
.btn:focus-visible{outline:none;box-shadow:0 0 0 3px rgba(255,107,44,.35);}

.nav-chips{
  display:flex;
  align-items:center;
  gap:10px;
  padding:0 0 14px;
  overflow-x:auto;
  scrollbar-width:none;
}
.nav-chips::-webkit-scrollbar{display:none;}
.chip{
  flex:0 0 auto;
  display:inline-flex;align-items:center;
  height:38px;
  padding:0 16px;
  border-radius:999px;
  border:1px solid var(--line);
  background:rgba(255,255,255,.7);
  color:var(--text-2);
  font-size:14.5px;
  font-weight:500;
  transition:transform .2s ease,color .2s ease,background .2s ease,border-color .2s ease,box-shadow .2s ease;
}
.chip:hover{transform:translateY(-2px);color:var(--brand-deep);border-color:rgba(255,107,44,.35);}
.chip.is-active{
  background:var(--grad);
  color:#fff;
  border-color:transparent;
  box-shadow:0 10px 20px -12px rgba(122,92,255,.85);
}

/* ---------- Breadcrumb ---------- */
.crumb-bar{padding:22px 0 0;}
.crumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--text-3);}
.crumb a{color:var(--text-3);transition:color .2s ease;}
.crumb a:hover{color:var(--brand-deep);}
.crumb .sep{color:rgba(18,16,22,.22);}
.crumb .cur{color:var(--text-2);font-weight:600;}

/* ---------- Hero banner ---------- */
.page-hero{
  position:relative;
  margin-top:20px;
  border-radius:var(--r-xl);
  overflow:hidden;
  background:#1A1622;
  isolation:isolate;
}
.page-hero__bg{
  position:absolute;inset:0;
  background-image:url('/assets/images/backpic/back-1.webp');
  background-size:cover;background-position:center;
  opacity:.28;
  z-index:0;
}
.page-hero__veil{
  position:absolute;inset:0;
  background:linear-gradient(120deg,rgba(18,16,22,.94) 6%,rgba(26,22,34,.82) 46%,rgba(122,92,255,.42) 100%);
  z-index:1;
}
.page-hero__blob{
  position:absolute;
  width:420px;height:420px;right:-120px;top:-160px;
  background:var(--grad);
  filter:blur(90px);
  opacity:.42;
  border-radius:50%;
  z-index:1;
}
.page-hero__inner{position:relative;z-index:2;padding:56px 28px 52px;}
@media(min-width:768px){.page-hero__inner{padding:72px 56px 66px;}}
.hero-tag{
  display:inline-flex;align-items:center;gap:8px;
  padding:7px 14px;
  border-radius:999px;
  background:rgba(255,255,255,.1);
  border:1px solid rgba(255,255,255,.22);
  color:#fff;
  font-size:13px;
  letter-spacing:.3px;
}
.hero-tag i{width:7px;height:7px;border-radius:50%;background:var(--lime);display:inline-block;}
.page-hero h1{
  margin-top:20px;
  font-size:30px;
  line-height:1.32;
  font-weight:700;
  color:#fff;
  letter-spacing:.2px;
  max-width:900px;
}
@media(min-width:768px){.page-hero h1{font-size:40px;line-height:1.26;}}
.page-hero p.lede{
  margin-top:18px;
  max-width:760px;
  font-size:16px;
  line-height:1.8;
  color:rgba(255,255,255,.74);
}
.hero-badges{display:flex;flex-wrap:wrap;gap:12px;margin-top:28px;}
.badge-solid{
  display:inline-flex;align-items:center;gap:10px;
  padding:10px 16px;
  border-radius:var(--r-sm);
  background:rgba(255,255,255,.08);
  border:1px solid rgba(255,255,255,.18);
  color:#fff;
  font-size:13.5px;
}
.badge-solid b{font-size:18px;}
.badge-solid .lime{color:var(--lime);}
.badge-solid .cyan{color:var(--cyan);}

/* ---------- Section base ---------- */
.section{padding:64px 0;}
@media(min-width:1024px){.section{padding:96px 0;}}
.section-head{max-width:760px;margin-bottom:36px;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;font-weight:600;letter-spacing:.6px;
  color:var(--brand-deep);
  text-transform:none;
}
.eyebrow::before{content:"";width:22px;height:3px;border-radius:999px;background:var(--grad);display:inline-block;}
.section-title{
  margin-top:14px;
  font-size:24px;line-height:1.4;font-weight:700;color:var(--text);
}
@media(min-width:768px){.section-title{font-size:28px;line-height:1.36;}}
.section-sub{margin-top:14px;font-size:15.5px;color:var(--text-2);line-height:1.8;}

/* ---------- Intro: 左图右文 ---------- */
.split{display:grid;gap:28px;align-items:center;}
@media(min-width:1024px){.split{grid-template-columns:1fr 1fr;gap:48px;}}
.split-media{position:relative;border-radius:var(--r-xl);overflow:hidden;box-shadow:var(--sh-2);background:var(--brand-soft);}
.split-media img{width:100%;height:100%;aspect-ratio:4/3;object-fit:cover;}
.split-media__float{
  position:absolute;left:18px;bottom:18px;right:18px;
  background:rgba(255,255,255,.94);
  border-radius:var(--r-md);
  padding:14px 16px;
  box-shadow:var(--sh-2);
  display:flex;align-items:center;gap:12px;
}
.split-media__float .dot{
  width:36px;height:36px;border-radius:12px;background:var(--grad);
  display:flex;align-items:center;justify-content:center;color:#fff;font-size:13px;font-weight:700;flex:0 0 auto;
}
.split-media__float span{font-size:13.5px;color:var(--text-2);line-height:1.6;}
.intro-copy h2{font-size:22px;line-height:1.45;font-weight:700;}
@media(min-width:768px){.intro-copy h2{font-size:28px;line-height:1.36;}}
.intro-copy p{margin-top:16px;font-size:15.5px;line-height:1.85;color:var(--text-2);}
.intro-list{margin-top:22px;display:grid;gap:12px;}
.intro-list li{display:flex;gap:12px;align-items:flex-start;font-size:15px;color:var(--text-2);}
.intro-list .tick{
  width:22px;height:22px;flex:0 0 auto;margin-top:3px;
  border-radius:8px;background:var(--brand-soft);color:var(--brand-deep);
  display:flex;align-items:center;justify-content:center;font-size:12px;font-weight:700;
}

/* ---------- Steps ---------- */
.steps-wrap{
  margin-top:56px;
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--r-xl);
  padding:28px 22px;
  box-shadow:var(--sh-1);
}
@media(min-width:768px){.steps-wrap{padding:36px 34px;}}
.steps-title{font-size:17px;font-weight:700;}
.steps-title span{display:block;margin-top:8px;font-size:14px;font-weight:400;color:var(--text-3);}
.steps{display:grid;gap:18px;margin-top:26px;}
@media(min-width:768px){.steps{grid-template-columns:repeat(2,1fr);}}
@media(min-width:1024px){.steps{grid-template-columns:repeat(4,1fr);gap:22px;}}
.step{position:relative;padding-left:4px;}
.step__no{
  width:40px;height:40px;border-radius:14px;
  display:flex;align-items:center;justify-content:center;
  font-size:15px;font-weight:700;color:#fff;
  background:var(--grad);
  box-shadow:0 10px 22px -14px rgba(255,107,44,.95);
}
.step h3{margin-top:14px;font-size:16.5px;font-weight:600;}
.step p{margin-top:8px;font-size:14px;line-height:1.75;color:var(--text-2);}
.step::after{
  content:"";
  position:absolute;top:20px;right:-14px;
  width:24px;height:2px;border-radius:999px;
  background:linear-gradient(90deg,rgba(255,107,44,.5),rgba(18,199,184,.5));
  display:none;
}
@media(min-width:1024px){.step:not(:last-child)::after{display:block;}}

/* ---------- Cards grid ---------- */
.card-grid{display:grid;gap:20px;}
@media(min-width:640px){.card-grid{grid-template-columns:repeat(2,1fr);}}
@media(min-width:1024px){.card-grid{grid-template-columns:repeat(3,1fr);gap:24px;}}
.card{
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--r-lg);
  padding:24px 22px;
  box-shadow:var(--sh-1);
  transition:transform .24s ease,box-shadow .24s ease,border-color .24s ease;
  height:100%;
}
.card:hover{transform:translateY(-4px);box-shadow:var(--sh-2);border-color:rgba(255,107,44,.28);}
.card__icon{
  width:44px;height:44px;border-radius:14px;
  display:flex;align-items:center;justify-content:center;
  font-size:17px;
  background:var(--brand-soft);
  color:var(--brand-deep);
  border:1px solid rgba(255,107,44,.16);
}
.card h3{margin-top:16px;font-size:18px;line-height:1.5;font-weight:600;}
.card p{margin-top:10px;font-size:14.5px;line-height:1.8;color:var(--text-2);}
.card__meta{margin-top:16px;display:inline-flex;align-items:center;gap:6px;font-size:14px;color:var(--brand-deep);font-weight:600;}
.card__meta i{transition:transform .2s ease;font-style:normal;}
.card:hover .card__meta i{transform:translateX(4px);}

/* ---------- Dark data band ---------- */
.band{background:var(--dark);color:#fff;position:relative;overflow:hidden;}
.band::before{
  content:"";position:absolute;inset:0;
  background-image:radial-gradient(rgba(255,255,255,.06) 1px,transparent 1px);
  background-size:22px 22px;opacity:.9;
}
.band .container{position:relative;z-index:2;}
.band .section-title{color:#fff;}
.band .section-sub{color:rgba(255,255,255,.72);}
.band .eyebrow{color:var(--lime);}
.stat-grid{display:grid;gap:16px;margin-top:8px;}
@media(min-width:640px){.stat-grid{grid-template-columns:repeat(2,1fr);}}
@media(min-width:1024px){.stat-grid{grid-template-columns:repeat(4,1fr);gap:20px;}}
.stat{
  background:rgba(255,255,255,.05);
  border:1px solid rgba(255,255,255,.14);
  border-radius:var(--r-md);
  padding:22px 20px;
  transition:transform .24s ease,border-color .24s ease,background .24s ease;
}
.stat:hover{transform:translateY(-4px);border-color:rgba(255,107,44,.55);background:rgba(255,255,255,.08);}
.stat b{display:block;font-size:40px;line-height:1;font-weight:700;letter-spacing:-.5px;}
@media(min-width:1024px){.stat b{font-size:48px;}}
.stat b.g1{color:#FF8A3D;}
.stat b.g2{color:var(--cyan);}
.stat b.g3{color:var(--violet);}
.stat b.g4{color:var(--lime);}
.stat span{display:block;margin-top:12px;font-size:14px;color:rgba(255,255,255,.72);line-height:1.7;}

/* ---------- FAQ ---------- */
.faq{max-width:880px;margin:0 auto;display:grid;gap:14px;}
.faq details{
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:16px;
  padding:0;
  overflow:hidden;
  transition:border-color .24s ease,box-shadow .24s ease;
}
.faq details[open]{border-color:rgba(255,107,44,.32);background:linear-gradient(180deg,var(--brand-soft) 0%,#fff 62%);box-shadow:var(--sh-1);}
.faq summary{
  list-style:none;cursor:pointer;
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:18px 20px;
  font-size:16.5px;font-weight:600;
  color:var(--text);
}
.faq summary::-webkit-details-marker{display:none;}
.faq summary .sign{
  flex:0 0 auto;
  width:28px;height:28px;border-radius:10px;
  display:flex;align-items:center;justify-content:center;
  background:rgba(255,107,44,.1);color:var(--brand-deep);
  font-size:16px;line-height:1;font-weight:700;
  transition:transform .24s ease,background .24s ease;
}
.faq details[open] summary .sign{background:var(--grad);color:#fff;transform:rotate(45deg);}
.faq .answer{
  padding:0 20px 20px;
  font-size:14.8px;line-height:1.85;color:var(--text-2);
  animation:fadeIn .24s ease;
}
@keyframes fadeIn{from{opacity:0;transform:translateY(-4px);}to{opacity:1;transform:none;}}

/* ---------- Related categories ---------- */
.related{display:grid;gap:18px;}
@media(min-width:640px){.related{grid-template-columns:repeat(2,1fr);}}
@media(min-width:1024px){.related{grid-template-columns:repeat(4,1fr);}}
.related-card{
  display:block;
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--r-md);
  overflow:hidden;
  box-shadow:var(--sh-1);
  transition:transform .24s ease,box-shadow .24s ease,border-color .24s ease;
}
.related-card:hover{transform:translateY(-4px);box-shadow:var(--sh-2);border-color:rgba(255,107,44,.28);}
.related-card .thumb{aspect-ratio:16/9;overflow:hidden;background:var(--brand-soft);}
.related-card .thumb img{width:100%;height:100%;object-fit:cover;transition:transform .35s ease;}
.related-card:hover .thumb img{transform:scale(1.03);}
.related-card .body{padding:16px 18px 20px;}
.related-card h3{font-size:16px;font-weight:600;line-height:1.55;}
.related-card p{margin-top:8px;font-size:13.5px;color:var(--text-3);line-height:1.7;}
.related-card .go{margin-top:12px;display:inline-flex;align-items:center;gap:6px;font-size:13.5px;font-weight:600;color:var(--brand-deep);}

/* ---------- CTA ---------- */
.cta-band{
  position:relative;
  border-radius:var(--r-xl);
  overflow:hidden;
  background:var(--dark-2);
  color:#fff;
  padding:44px 26px;
  isolation:isolate;
}
@media(min-width:768px){.cta-band{padding:56px 52px;}}
.cta-band__glow{
  position:absolute;inset:auto -80px -140px auto;
  width:420px;height:420px;border-radius:50%;
  background:var(--grad);filter:blur(100px);opacity:.5;z-index:0;
}
.cta-inner{position:relative;z-index:2;display:grid;gap:26px;align-items:center;}
@media(min-width:1024px){.cta-inner{grid-template-columns:1.4fr .9fr;gap:44px;}}
.cta-inner h2{font-size:24px;line-height:1.42;font-weight:700;color:#fff;}
@media(min-width:768px){.cta-inner h2{font-size:30px;line-height:1.34;}}
.cta-inner p{margin-top:14px;font-size:15px;line-height:1.85;color:rgba(255,255,255,.74);}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;}
@media(max-width:520px){
  .cta-actions{flex-direction:column;}
  .cta-actions .btn{width:100%;}
}
.cta-panel{
  background:rgba(255,255,255,.06);
  border:1px solid rgba(255,255,255,.16);
  border-radius:var(--r-md);
  padding:22px 20px;
}
.cta-panel h3{font-size:15px;font-weight:600;color:#fff;}
.cta-panel ul{margin-top:14px;display:grid;gap:10px;}
.cta-panel li{display:flex;gap:10px;font-size:13.8px;color:rgba(255,255,255,.74);line-height:1.7;}
.cta-panel li b{color:var(--lime);font-weight:700;}

/* ---------- Footer ---------- */
.site-footer{background:var(--dark);color:rgba(255,255,255,.72);margin-top:64px;padding:56px 0 26px;}
@media(min-width:1024px){.site-footer{padding:72px 0 28px;}}
.footer-grid{display:grid;gap:32px;}
@media(min-width:768px){.footer-grid{grid-template-columns:1.6fr 1fr 1fr;}}
@media(min-width:1024px){.footer-grid{grid-template-columns:2fr 1fr 1fr 1fr;gap:40px;}}
.footer-brand .logo-text{color:#fff;}
.footer-brand p{margin-top:16px;font-size:14px;line-height:1.85;color:rgba(255,255,255,.66);max-width:360px;}
.footer-col h4{font-size:15px;font-weight:600;color:#fff;margin-bottom:16px;}
.footer-col ul{display:grid;gap:11px;}
.footer-col a{font-size:14px;color:rgba(255,255,255,.68);transition:color .2s ease,transform .2s ease;}
.footer-col a:hover{color:var(--cyan);}
.footer-bottom{
  margin-top:40px;padding-top:20px;
  border-top:1px solid rgba(255,255,255,.12);
  display:flex;flex-wrap:wrap;gap:10px;justify-content:space-between;
  font-size:13px;color:rgba(255,255,255,.5);
}

/* roulang page: category2 */
:root{
  --orange:#FF6B2C;
  --orange-press:#E5541A;
  --orange-tint:#FFF1E8;
  --cyan:#12C7B8;
  --purple:#7A5CFF;
  --lime:#C6F24E;
  --ink:#17131C;
  --ink-2:#5F5868;
  --ink-3:#8B8494;
  --bg-light:#F7F4EF;
  --white:#FFFFFF;
  --deep:#121016;
  --deep-2:#1A1622;
  --line:rgba(18,16,22,.08);
  --line-strong:rgba(18,16,22,.14);
  --grad:linear-gradient(118deg,#FF6B2C 0%,#FF8A3D 28%,#7A5CFF 68%,#12C7B8 100%);
  --grad-soft:linear-gradient(118deg,rgba(255,107,44,.14) 0%,rgba(122,92,255,.12) 60%,rgba(18,199,184,.14) 100%);
  --r-sm:12px;
  --r-md:14px;
  --r-card:22px;
  --r-lg:28px;
  --sh-1:0 1px 2px rgba(18,16,22,.06);
  --sh-2:0 12px 32px -12px rgba(18,16,22,.18);
  --sh-3:0 20px 44px -16px rgba(18,16,22,.28);
  --container:1200px;
  --font:system-ui,-apple-system,"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",sans-serif;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:var(--font);
  font-size:16px;
  line-height:1.75;
  color:var(--ink);
  background:var(--bg-light);
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4,p,ul,ol,li,figure{margin:0;padding:0;}
ul,ol{list-style:none;}
a{color:inherit;text-decoration:none;transition:color .22s ease,opacity .22s ease;}
img{max-width:100%;display:block;border:0;}
button{font-family:inherit;cursor:pointer;border:0;background:none;}
input,textarea,select{font-family:inherit;font-size:15px;}
:focus-visible{outline:3px solid rgba(255,107,44,.35);outline-offset:2px;border-radius:8px;}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 20px;}
@media(min-width:768px){.container{padding:0 24px;}}
@media(min-width:1024px){.container{padding:0 32px;}}
.section{padding:64px 0;}
@media(min-width:1024px){.section{padding:96px 0;}}
.num{font-variant-numeric:tabular-nums;}

/* ============ 顶部导航 ============ */
.site-header{
  position:sticky;top:0;z-index:80;
  background:rgba(255,255,255,.92);
  backdrop-filter:blur(14px);
  border-bottom:1px solid var(--line);
  transition:box-shadow .25s ease,background .25s ease;
}
.site-header.is-scrolled{box-shadow:0 8px 26px -14px rgba(18,16,22,.28);background:rgba(255,255,255,.97);}
.header-inner{
  display:flex;align-items:center;gap:18px;
  min-height:72px;
}
.logo{display:inline-flex;align-items:center;gap:10px;flex:0 0 auto;}
.logo-mark{
  width:38px;height:38px;border-radius:12px;
  background:var(--grad);
  color:#fff;display:grid;place-items:center;
  font-weight:800;font-size:15px;letter-spacing:.5px;
  box-shadow:0 8px 18px -8px rgba(255,107,44,.75);
}
.logo-text{font-size:17px;font-weight:700;color:var(--ink);letter-spacing:.2px;white-space:nowrap;}
.logo-text b{color:var(--orange);font-weight:700;}
.nav-chips{
  display:flex;align-items:center;gap:6px;
  flex:1 1 auto;min-width:0;
  overflow-x:auto;scrollbar-width:none;
  padding:4px 2px;
}
.nav-chips::-webkit-scrollbar{display:none;}
.chip{
  flex:0 0 auto;
  display:inline-flex;align-items:center;height:38px;padding:0 16px;
  border-radius:999px;border:1px solid transparent;
  font-size:14px;font-weight:600;color:var(--ink-2);
  white-space:nowrap;
  transition:transform .2s ease,background .22s ease,color .22s ease,border-color .22s ease;
}
.chip:hover{background:var(--orange-tint);color:var(--orange);transform:translateY(-1px);}
.chip.is-active{background:var(--grad);color:#fff;box-shadow:0 8px 18px -10px rgba(255,107,44,.85);}
.header-actions{display:flex;align-items:center;gap:10px;flex:0 0 auto;}
.nav-toggle{
  display:none;width:42px;height:42px;border-radius:12px;
  border:1px solid var(--line-strong);color:var(--ink);font-size:16px;
  align-items:center;justify-content:center;
  transition:background .2s ease,transform .2s ease;
}
.nav-toggle:hover{background:var(--orange-tint);color:var(--orange);}
@media(max-width:1023px){
  .nav-chips{display:none;}
  .nav-toggle{display:inline-flex;}
  .header-actions .btn-primary{display:none;}
}
.drawer{
  position:fixed;inset:0;z-index:120;
  background:rgba(18,16,22,.5);
  opacity:0;pointer-events:none;transition:opacity .26s ease;
}
.drawer.is-open{opacity:1;pointer-events:auto;}
.drawer-panel{
  position:absolute;right:0;top:0;height:100%;width:min(320px,86vw);
  background:#fff;padding:22px 20px;overflow-y:auto;
  transform:translateX(100%);transition:transform .28s ease;
  box-shadow:-16px 0 40px -20px rgba(18,16,22,.4);
}
.drawer.is-open .drawer-panel{transform:translateX(0);}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:18px;}
.drawer-list{display:flex;flex-direction:column;gap:8px;}
.drawer-list a{
  display:block;padding:12px 14px;border-radius:12px;
  font-size:15px;font-weight:600;color:var(--ink-2);
  border:1px solid var(--line);
}
.drawer-list a.is-active{background:var(--grad);color:#fff;border-color:transparent;}
.drawer-list a:hover{color:var(--orange);border-color:rgba(255,107,44,.35);}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:14px 24px;border-radius:999px;
  font-size:15px;font-weight:700;letter-spacing:.2px;
  transition:transform .2s ease,box-shadow .22s ease,background .22s ease,color .22s ease,border-color .22s ease;
  white-space:nowrap;
}
.btn-primary{
  background:var(--grad);color:#fff;
  box-shadow:0 12px 26px -12px rgba(255,107,44,.85);
}
.btn-primary:hover{transform:translateY(-2px);filter:brightness(1.05);box-shadow:0 18px 34px -14px rgba(255,107,44,.9);}
.btn-primary:active{transform:translateY(0);background:var(--orange-press);}
.btn-ghost{
  border:1.5px solid var(--orange);color:var(--orange);background:transparent;
}
.btn-ghost:hover{background:rgba(255,107,44,.08);transform:translateY(-2px);}
.btn-light{
  background:#fff;color:var(--ink);box-shadow:var(--sh-1);
}
.btn-light:hover{transform:translateY(-2px);box-shadow:var(--sh-2);}
.btn-sm{padding:10px 18px;font-size:14px;}
.link-arrow{display:inline-flex;align-items:center;gap:6px;font-weight:700;color:var(--orange);font-size:14px;}
.link-arrow i{transition:transform .22s ease;}
.link-arrow:hover i{transform:translateX(4px);}

/* ============ 面包屑 ============ */
.crumb{
  display:flex;align-items:center;gap:8px;flex-wrap:wrap;
  font-size:13px;color:var(--ink-3);
}
.crumb a{color:var(--ink-2);}
.crumb a:hover{color:var(--orange);}
.crumb .sep{color:var(--ink-3);opacity:.6;}
.crumb .now{color:var(--orange);font-weight:600;}

/* ============ Hero ============ */
.page-hero{
  position:relative;overflow:hidden;
  background:var(--deep);
  color:#fff;
  padding:52px 0 64px;
}
.page-hero::before{
  content:"";position:absolute;inset:0;
  background-image:url('/assets/images/backpic/back-2.webp');
  background-size:cover;background-position:center;
  opacity:.2;
}
.page-hero::after{
  content:"";position:absolute;inset:0;
  background:
    radial-gradient(680px 340px at 12% 8%,rgba(255,107,44,.42),transparent 66%),
    radial-gradient(560px 320px at 88% 22%,rgba(122,92,255,.42),transparent 68%),
    linear-gradient(160deg,rgba(18,16,22,.55),rgba(18,16,22,.9));
}
.page-hero > .container{position:relative;z-index:2;}
.page-hero .crumb{color:rgba(255,255,255,.66);}
.page-hero .crumb a{color:rgba(255,255,255,.82);}
.page-hero .crumb a:hover{color:var(--lime);}
.page-hero .crumb .now{color:var(--lime);}
.hero-grid{
  display:grid;gap:34px;align-items:center;
  margin-top:26px;
}
@media(min-width:1024px){
  .hero-grid{grid-template-columns:1.15fr .85fr;gap:48px;margin-top:34px;}
}
.hero-tag{
  display:inline-flex;align-items:center;gap:8px;
  padding:7px 15px;border-radius:999px;
  font-size:13px;font-weight:700;
  color:#fff;background:rgba(255,255,255,.12);
  border:1px solid rgba(255,255,255,.26);
  backdrop-filter:blur(6px);
}
.hero-tag .dot{width:7px;height:7px;border-radius:50%;background:var(--lime);box-shadow:0 0 0 4px rgba(198,242,78,.22);}
.page-hero h1{
  font-size:30px;line-height:1.34;font-weight:700;letter-spacing:.2px;
  margin:18px 0 14px;
}
@media(min-width:768px){.page-hero h1{font-size:36px;}}
@media(min-width:1024px){.page-hero h1{font-size:42px;line-height:1.28;}}
.page-hero h1 .hl{
  background:var(--grad);
  -webkit-background-clip:text;background-clip:text;color:transparent;
}
.hero-sub{
  font-size:16px;line-height:1.85;color:rgba(255,255,255,.76);
  max-width:620px;
}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:28px;}
.hero-actions .btn-ghost{border-color:rgba(255,255,255,.5);color:#fff;}
.hero-actions .btn-ghost:hover{background:rgba(255,255,255,.12);}
.hero-badges{
  display:grid;gap:14px;
  grid-template-columns:repeat(2,minmax(0,1fr));
}
@media(min-width:640px){.hero-badges{grid-template-columns:repeat(2,minmax(0,1fr));}}
.hero-badge{
  border-radius:20px;padding:16px 18px;
  background:rgba(255,255,255,.07);
  border:1px solid rgba(255,255,255,.16);
  backdrop-filter:blur(8px);
}
.hero-badge.wide{grid-column:span 2;}
.hero-badge .b-num{
  font-size:32px;font-weight:800;line-height:1.1;
  font-variant-numeric:tabular-nums;
  background:linear-gradient(118deg,#FF8A3D,#C6F24E 60%,#12C7B8);
  -webkit-background-clip:text;background-clip:text;color:transparent;
}
.hero-badge .b-label{font-size:13px;color:rgba(255,255,255,.7);margin-top:6px;}

/* ============ 通用标题 ============ */
.sec-head{max-width:760px;margin-bottom:34px;}
.sec-kicker{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;font-weight:700;letter-spacing:1.4px;
  color:var(--orange);text-transform:uppercase;
}
.sec-kicker::before{content:"";width:22px;height:3px;border-radius:3px;background:var(--grad);}
.sec-title{
  font-size:24px;font-weight:700;line-height:1.4;margin-top:12px;letter-spacing:.2px;
}
@media(min-width:768px){.sec-title{font-size:28px;}}
.sec-desc{font-size:15.5px;color:var(--ink-2);margin-top:12px;line-height:1.85;}

/* ============ 介绍条 ============ */
.intro-band{
  background:#fff;
  border-bottom:1px solid var(--line);
}
.intro-band .inner{
  display:grid;gap:28px;padding:52px 0;
}
@media(min-width:1024px){
  .intro-band .inner{grid-template-columns:.9fr 1.1fr;gap:52px;align-items:center;padding:64px 0;}
}
.intro-media{
  border-radius:var(--r-lg);overflow:hidden;
  border:1px solid var(--line);
  box-shadow:var(--sh-2);
  background:linear-gradient(140deg,#FFE7D8,#E7E3FF 55%,#D8F6F2);
}
.intro-media img{width:100%;height:100%;object-fit:cover;aspect-ratio:4/3;}
.intro-text p{font-size:15.5px;line-height:1.9;color:var(--ink-2);}
.intro-text p + p{margin-top:14px;}
.intro-meta{display:flex;flex-wrap:wrap;gap:10px;margin-top:20px;}
.pill{
  display:inline-flex;align-items:center;gap:7px;
  padding:8px 14px;border-radius:999px;
  font-size:13px;font-weight:600;color:var(--ink-2);
  background:var(--bg-light);border:1px solid var(--line);
}
.pill i{color:var(--orange);}

/* ============ 编号列表 ============ */
.num-list{display:flex;flex-direction:column;gap:14px;}
.num-item{
  display:flex;gap:18px;align-items:flex-start;
  background:#fff;border:1px solid var(--line);border-radius:var(--r-card);
  padding:22px 22px 22px 20px;
  box-shadow:var(--sh-1);
  transition:transform .24s ease,box-shadow .24s ease,border-color .24s ease;
}
.num-item:hover{transform:translateY(-4px);box-shadow:var(--sh-2);border-color:rgba(255,107,44,.32);}
.num-index{
  flex:0 0 auto;width:52px;
  font-size:26px;font-weight:800;line-height:1.1;
  font-variant-numeric:tabular-nums;
  background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent;
}
.num-body{flex:1 1 auto;min-width:0;}
.num-body h3{font-size:18px;font-weight:700;margin-bottom:6px;}
.num-body p{font-size:14.5px;color:var(--ink-2);line-height:1.8;}
.num-side{flex:0 0 auto;display:flex;flex-direction:column;gap:8px;align-items:flex-end;}
.stat-badge{
  display:inline-flex;flex-direction:column;align-items:center;
  min-width:92px;padding:9px 14px;border-radius:16px;
  background:var(--bg-light);border:1px solid var(--line);
}
.stat-badge b{font-size:17px;font-weight:800;font-variant-numeric:tabular-nums;color:var(--ink);line-height:1.2;}
.stat-badge i{font-style:normal;font-size:12px;color:var(--ink-3);margin-top:2px;}
.stat-badge.accent b{color:var(--orange);}
.stat-badge.teal b{color:#0FA99C;}
.stat-badge.violet b{color:var(--purple);}
@media(max-width:767px){
  .num-item{flex-wrap:wrap;gap:12px;}
  .num-side{flex-direction:row;align-items:center;width:100%;justify-content:flex-start;}
  .num-index{width:auto;}
}

/* ============ 深色数据带 ============ */
.dark-band{
  position:relative;overflow:hidden;
  background:
    radial-gradient(700px 320px at 8% 0%,rgba(255,107,44,.24),transparent 62%),
    radial-gradient(620px 320px at 92% 100%,rgba(18,199,184,.22),transparent 64%),
    var(--deep);
  color:#fff;
}
.dark-band .sec-title{color:#fff;}
.dark-band .sec-desc{color:rgba(255,255,255,.7);}
.metric-grid{
  display:grid;gap:16px;
  grid-template-columns:repeat(2,minmax(0,1fr));
}
@media(min-width:1024px){.metric-grid{grid-template-columns:repeat(4,minmax(0,1fr));gap:20px;}}
.metric-card{
  border-radius:var(--r-card);padding:22px 20px;
  background:rgba(255,255,255,.06);
  border:1px solid rgba(255,255,255,.14);
  backdrop-filter:blur(6px);
  transition:transform .24s ease,border-color .24s ease,background .24s ease;
}
.metric-card:hover{transform:translateY(-4px);border-color:rgba(198,242,78,.45);background:rgba(255,255,255,.1);}
.metric-num{
  font-size:40px;font-weight:800;line-height:1;
  font-variant-numeric:tabular-nums;
  background:linear-gradient(118deg,#FF8A3D,#C6F24E 55%,#12C7B8);
  -webkit-background-clip:text;background-clip:text;color:transparent;
}
@media(min-width:1024px){.metric-num{font-size:52px;}}
.metric-label{font-size:15px;font-weight:600;margin-top:12px;color:#fff;}
.metric-note{font-size:13.5px;color:rgba(255,255,255,.62);margin-top:6px;line-height:1.7;}

/* ============ 排行列表 ============ */
.rank-grid{display:grid;gap:24px;}
@media(min-width:1024px){.rank-grid{grid-template-columns:1.25fr .75fr;gap:32px;align-items:start;}}
.rank-list{background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);padding:10px;box-shadow:var(--sh-1);}
.rank-row{
  display:flex;align-items:center;gap:16px;
  padding:14px 14px;border-radius:16px;
  transition:background .22s ease,transform .22s ease;
}
.rank-row + .rank-row{border-top:1px solid var(--line);}
.rank-row:hover{background:var(--orange-tint);transform:translateX(2px);}
.rank-no{
  flex:0 0 auto;width:30px;height:30px;border-radius:10px;
  display:grid;place-items:center;
  font-size:13px;font-weight:800;font-variant-numeric:tabular-nums;
  background:var(--bg-light);color:var(--ink-2);border:1px solid var(--line);
}
.rank-row.top .rank-no{background:var(--grad);color:#fff;border-color:transparent;}
.rank-main{flex:1 1 auto;min-width:0;}
.rank-main h3{font-size:15.5px;font-weight:700;}
.rank-main p{font-size:13px;color:var(--ink-3);margin-top:2px;}
.rank-bar{
  flex:0 0 auto;width:110px;height:8px;border-radius:999px;
  background:var(--bg-light);overflow:hidden;border:1px solid var(--line);
}
.rank-bar span{display:block;height:100%;border-radius:999px;background:var(--grad);}
.rank-count{
  flex:0 0 auto;font-size:13.5px;font-weight:700;color:var(--ink-2);
  font-variant-numeric:tabular-nums;min-width:56px;text-align:right;
}
@media(max-width:639px){
  .rank-bar{display:none;}
  .rank-count{min-width:auto;}
}
.side-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);
  padding:24px;box-shadow:var(--sh-1);
}
.side-card + .side-card{margin-top:20px;}
.side-card h3{font-size:17px;font-weight:700;margin-bottom:12px;}
.side-card ul{display:flex;flex-direction:column;gap:10px;}
.side-card li{display:flex;gap:10px;font-size:14px;color:var(--ink-2);line-height:1.75;}
.side-card li i{color:var(--cyan);margin-top:5px;font-size:13px;}
.side-media{border-radius:var(--r-card);overflow:hidden;border:1px solid var(--line);margin-top:20px;}
.side-media img{width:100%;aspect-ratio:16/9;object-fit:cover;}

/* ============ 流程 ============ */
.steps{
  display:grid;gap:18px;grid-template-columns:1fr;
}
@media(min-width:640px){.steps{grid-template-columns:repeat(2,minmax(0,1fr));}}
@media(min-width:1024px){.steps{grid-template-columns:repeat(4,minmax(0,1fr));}}
.step-card{
  position:relative;background:#fff;border:1px solid var(--line);
  border-radius:var(--r-card);padding:24px 20px;
  box-shadow:var(--sh-1);overflow:hidden;
  transition:transform .24s ease,box-shadow .24s ease,border-color .24s ease;
}
.step-card::before{
  content:"";position:absolute;left:0;top:0;height:4px;width:100%;
  background:var(--grad);opacity:.85;
}
.step-card:hover{transform:translateY(-4px);box-shadow:var(--sh-2);border-color:rgba(255,107,44,.3);}
.step-no{
  font-size:13px;font-weight:800;letter-spacing:1.6px;color:var(--orange);
  font-variant-numeric:tabular-nums;
}
.step-card h3{font-size:17px;font-weight:700;margin:10px 0 8px;}
.step-card p{font-size:14px;color:var(--ink-2);line-height:1.8;}

/* ============ FAQ ============ */
.faq-wrap{max-width:880px;margin:0 auto;}
.faq-item{
  background:#fff;border:1px solid var(--line);border-radius:16px;
  overflow:hidden;box-shadow:var(--sh-1);
  transition:border-color .24s ease,box-shadow .24s ease;
}
.faq-item + .faq-item{margin-top:12px;}
.faq-item.is-open{border-color:rgba(255,107,44,.4);box-shadow:var(--sh-2);}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:18px 20px;text-align:left;
  font-size:16.5px;font-weight:600;color:var(--ink);
  transition:color .22s ease;
}
.faq-q:hover{color:var(--orange);}
.faq-icon{
  flex:0 0 auto;width:28px;height:28px;border-radius:9px;
  display:grid;place-items:center;font-size:15px;font-weight:700;
  background:var(--bg-light);color:var(--ink-2);
  border:1px solid var(--line);
}
.faq-item.is-open .faq-icon{background:var(--grad);color:#fff;border-color:transparent;}
.faq-a{
  max-height:0;overflow:hidden;
  transition:max-height .24s ease,padding .24s ease;
}
.faq-item.is-open .faq-a{max-height:340px;}
.faq-a .inner{
  padding:0 20px 20px;
  font-size:15px;line-height:1.9;color:var(--ink-2);
  border-top:1px solid var(--line);
  padding-top:16px;
}

/* ============ 相关分类 ============ */
.rel-grid{display:grid;gap:16px;grid-template-columns:1fr;}
@media(min-width:640px){.rel-grid{grid-template-columns:repeat(2,minmax(0,1fr));}}
@media(min-width:1024px){.rel-grid{grid-template-columns:repeat(4,minmax(0,1fr));}}
.rel-card{
  display:flex;flex-direction:column;gap:10px;
  background:#fff;border:1px solid var(--line);border-radius:var(--r-card);
  padding:22px 20px;box-shadow:var(--sh-1);
  transition:transform .24s ease,box-shadow .24s ease,border-color .24s ease;
}
.rel-card:hover{transform:translateY(-4px);box-shadow:var(--sh-2);border-color:rgba(255,107,44,.35);}
.rel-icon{
  width:42px;height:42px;border-radius:13px;display:grid;place-items:center;
  background:var(--grad-soft);color:var(--orange);font-size:17px;
  border:1px solid rgba(255,107,44,.22);
}
.rel-card h3{font-size:16px;font-weight:700;}
.rel-card p{font-size:13.5px;color:var(--ink-2);line-height:1.75;}

/* ============ CTA ============ */
.cta-band{
  position:relative;overflow:hidden;color:#fff;
  background:
    radial-gradient(620px 300px at 14% 20%,rgba(255,107,44,.55),transparent 62%),
    radial-gradient(620px 320px at 88% 80%,rgba(18,199,184,.45),transparent 66%),
    var(--deep-2);
}
.cta-inner{
  display:grid;gap:28px;align-items:center;padding:64px 0;
}
@media(min-width:1024px){
  .cta-inner{grid-template-columns:1.1fr .9fr;gap:48px;padding:80px 0;}
}
.cta-inner h2{font-size:26px;font-weight:700;line-height:1.4;margin-bottom:14px;}
@media(min-width:768px){.cta-inner h2{font-size:32px;}}
.cta-inner p{font-size:15.5px;line-height:1.9;color:rgba(255,255,255,.76);max-width:560px;}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:26px;}
.cta-actions .btn-ghost{border-color:rgba(255,255,255,.5);color:#fff;}
.cta-actions .btn-ghost:hover{background:rgba(255,255,255,.12);}
.cta-panel{
  border-radius:var(--r-lg);padding:24px;
  background:rgba(255,255,255,.07);
  border:1px solid rgba(255,255,255,.18);
  backdrop-filter:blur(8px);
}
.cta-panel h3{font-size:16px;font-weight:700;margin-bottom:14px;}
.cta-panel ul{display:flex;flex-direction:column;gap:12px;}
.cta-panel li{display:flex;gap:10px;font-size:14.5px;color:rgba(255,255,255,.82);line-height:1.75;}
.cta-panel li i{color:var(--lime);margin-top:5px;}

/* ============ 页脚 ============ */
.site-footer{background:var(--deep);color:rgba(255,255,255,.72);padding:60px 0 26px;}
.footer-grid{
  display:grid;gap:32px;grid-template-columns:1fr;
  padding-bottom:34px;border-bottom:1px solid rgba(255,255,255,.12);
}
@media(min-width:768px){.footer-grid{grid-template-columns:1fr 1fr;}}
@media(min-width:1024px){.footer-grid{grid-template-columns:2fr 1fr 1fr 1fr;gap:40px;}}
.footer-brand .logo{margin-bottom:14px;}
.footer-brand .logo-text{color:#fff;}
.footer-brand p{font-size:14px;line-height:1.85;color:rgba(255,255,255,.66);max-width:420px;}
.footer-col h4{font-size:15px;font-weight:700;color:#fff;margin-bottom:14px;}
.footer-col ul{display:flex;flex-direction:column;gap:10px;}
.footer-col a{font-size:14px;color:rgba(255,255,255,.68);}
.footer-col a:hover{color:var(--cyan);}
.footer-bottom{
  display:flex;flex-wrap:wrap;gap:10px;justify-content:space-between;
  padding-top:22px;font-size:13px;color:rgba(255,255,255,.5);
}

/* roulang page: category3 */
:root{
  --brand:#FF6B2C;
  --brand-2:#FF8A3D;
  --brand-press:#E5541A;
  --brand-soft:#FFF1E8;
  --cyan:#12C7B8;
  --purple:#7A5CFF;
  --lime:#C6F24E;
  --ink:#17131C;
  --ink-2:#5F5868;
  --ink-3:#8B8494;
  --line:rgba(18,16,22,.08);
  --line-strong:rgba(18,16,22,.14);
  --bg:#F7F4EF;
  --bg-card:#FFFFFF;
  --deep:#121016;
  --deep-2:#1A1622;
  --ok:#2BD48A;
  --warn:#FFB020;
  --err:#E5484D;
  --grad:linear-gradient(118deg,#FF6B2C 0%,#FF8A3D 28%,#7A5CFF 68%,#12C7B8 100%);
  --r-btn:14px;
  --r-card:22px;
  --r-big:28px;
  --sh-1:0 1px 2px rgba(18,16,22,.06);
  --sh-2:0 12px 32px -12px rgba(18,16,22,.18);
  --sh-3:0 22px 48px -18px rgba(18,16,22,.28);
  --font:system-ui,-apple-system,"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body.site-body{
  margin:0;
  font-family:var(--font);
  font-size:16px;
  line-height:1.75;
  color:var(--ink);
  background:var(--bg);
  font-variant-numeric:tabular-nums;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border-style:none}
a{color:inherit;text-decoration:none}
button{font-family:inherit;cursor:pointer;border:0;background:none;color:inherit}
ul,ol{margin:0;padding:0;list-style:none}
p{margin:0}
h1,h2,h3,h4{margin:0;font-weight:700;line-height:1.28}
:focus-visible{outline:3px solid rgba(255,107,44,.35);outline-offset:2px;border-radius:6px}

.container{width:100%;max-width:1200px;margin:0 auto;padding:0 32px}
.container-wide{max-width:1320px}
.section{padding:96px 0}
.section-tight{padding:72px 0}
.section-deep{background:var(--deep);color:#fff}
.section-deep .sec-sub{color:rgba(255,255,255,.72)}
.sec-head{max-width:760px;margin-bottom:44px}
.sec-eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;font-weight:600;letter-spacing:.04em;
  color:var(--brand);background:var(--brand-soft);
  border-radius:999px;padding:6px 14px;margin-bottom:16px;
}
.sec-title{font-size:28px;line-height:1.36;letter-spacing:-.01em}
.sec-sub{color:var(--ink-2);font-size:16px;margin-top:14px;max-width:680px}
.title-underline{position:relative;display:inline-block}
.title-underline::after{
  content:"";position:absolute;left:0;bottom:-8px;height:6px;width:100%;
  border-radius:999px;background:var(--grad);opacity:.9;
}

/* ---------- Header ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(247,244,239,.92);
  backdrop-filter:saturate(180%) blur(14px);
  border-bottom:1px solid var(--line);
  transition:box-shadow .25s ease,background .25s ease;
}
.site-header.is-scrolled{box-shadow:0 10px 30px -18px rgba(18,16,22,.35);background:rgba(247,244,239,.98)}
.header-inner{display:flex;align-items:center;gap:22px;min-height:72px}
.logo{display:flex;align-items:center;gap:10px;flex:none}
.logo-mark{
  width:38px;height:38px;border-radius:12px;background:var(--grad);
  color:#fff;font-weight:800;font-size:14px;letter-spacing:.02em;
  display:flex;align-items:center;justify-content:center;
  box-shadow:0 8px 18px -8px rgba(255,107,44,.8);
}
.logo-text{font-size:17px;font-weight:700;letter-spacing:-.01em;white-space:nowrap}
.logo-text b{color:var(--brand)}
.nav-chips{
  display:flex;align-items:center;gap:6px;flex:1 1 auto;
  overflow-x:auto;scrollbar-width:none;padding:6px 0;
}
.nav-chips::-webkit-scrollbar{display:none}
.chip{
  flex:none;display:inline-flex;align-items:center;
  height:38px;padding:0 16px;border-radius:999px;
  font-size:14px;font-weight:500;color:var(--ink-2);
  border:1px solid transparent;white-space:nowrap;
  transition:transform .2s ease,background .2s ease,color .2s ease,border-color .2s ease;
}
.chip:hover{background:rgba(255,107,44,.08);color:var(--brand);transform:translateY(-1px);border-color:rgba(255,107,44,.18)}
.chip.is-active{
  background:var(--grad);color:#fff;font-weight:600;
  box-shadow:0 10px 22px -12px rgba(255,107,44,.9);
}
.header-cta{flex:none}

/* ---------- Buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 24px;border-radius:999px;
  font-size:15px;font-weight:600;letter-spacing:.01em;
  transition:transform .2s ease,box-shadow .2s ease,filter .2s ease,background .2s ease,color .2s ease;
}
.btn-sm{height:40px;padding:0 18px;font-size:14px}
.btn-primary{background:var(--grad);color:#fff;box-shadow:0 14px 28px -14px rgba(255,107,44,.85)}
.btn-primary:hover{transform:translateY(-2px);filter:brightness(1.05);box-shadow:0 20px 36px -16px rgba(122,92,255,.8)}
.btn-primary:active{transform:translateY(0);filter:brightness(.97)}
.btn-outline{border:1.5px solid var(--brand);color:var(--brand);background:transparent}
.btn-outline:hover{background:rgba(255,107,44,.08);transform:translateY(-2px)}
.btn-ghost-light{border:1.5px solid rgba(255,255,255,.4);color:#fff}
.btn-ghost-light:hover{background:rgba(255,255,255,.12);transform:translateY(-2px)}
.btn-block{width:100%}
.link-arrow{
  display:inline-flex;align-items:center;gap:6px;
  font-size:14px;font-weight:600;color:var(--brand);
}
.link-arrow span{transition:transform .2s ease}
.link-arrow:hover span{transform:translateX(4px)}

/* ---------- Hero ---------- */
.page-hero{
  position:relative;overflow:hidden;
  background-color:var(--deep);
  color:#fff;
  padding:56px 0 88px;
}
.page-hero::before{
  content:"";position:absolute;inset:0;
  background-image:url('/assets/images/backpic/back-1.webp');
  background-size:cover;background-position:center;
  opacity:.18;
}
.page-hero::after{
  content:"";position:absolute;inset:0;
  background:
    radial-gradient(760px 420px at 12% 0%,rgba(255,107,44,.42),transparent 62%),
    radial-gradient(700px 420px at 88% 18%,rgba(122,92,255,.42),transparent 62%),
    linear-gradient(180deg,rgba(18,16,22,.28),rgba(18,16,22,.92));
}
.page-hero .container{position:relative;z-index:2}
.breadcrumb{
  display:flex;align-items:center;gap:8px;flex-wrap:wrap;
  font-size:13px;color:rgba(255,255,255,.7);margin-bottom:26px;
}
.breadcrumb a{color:rgba(255,255,255,.7);transition:color .2s ease}
.breadcrumb a:hover{color:#fff}
.breadcrumb .sep{opacity:.5}
.breadcrumb [aria-current]{color:#fff;font-weight:500}
.hero-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:56px;align-items:center}
.hero-tag{
  display:inline-flex;align-items:center;gap:10px;
  padding:7px 16px;border-radius:999px;
  background:rgba(255,255,255,.1);
  border:1px solid rgba(255,255,255,.22);
  font-size:13px;font-weight:600;color:#fff;margin-bottom:22px;
}
.hero-tag i{width:8px;height:8px;border-radius:50%;background:var(--lime);display:block}
.hero-title{font-size:44px;line-height:1.22;letter-spacing:-.02em;color:#fff}
.hero-title em{
  font-style:normal;
  background:linear-gradient(96deg,#FFD9C2,#C6F24E 55%,#7BF3E8);
  -webkit-background-clip:text;background-clip:text;color:transparent;
}
.hero-sub{margin-top:20px;font-size:17px;line-height:1.85;color:rgba(255,255,255,.78);max-width:560px}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:32px}
.hero-meta{display:flex;flex-wrap:wrap;gap:10px;margin-top:30px}
.mini-chip{
  font-size:13px;color:rgba(255,255,255,.78);
  border:1px solid rgba(255,255,255,.2);border-radius:999px;
  padding:6px 13px;background:rgba(255,255,255,.05);
}
.hero-visual{position:relative}
.hero-visual img{
  width:100%;border-radius:var(--r-big);
  border:1px solid rgba(255,255,255,.16);
  box-shadow:0 34px 70px -30px rgba(0,0,0,.85);
  aspect-ratio:4/3;object-fit:cover;background:rgba(255,255,255,.06);
}
.float-badge{
  position:absolute;left:-22px;bottom:-26px;
  background:rgba(18,16,22,.86);
  border:1px solid rgba(255,255,255,.18);
  border-radius:20px;padding:14px 18px;
  backdrop-filter:blur(8px);min-width:190px;
  box-shadow:0 24px 46px -22px rgba(0,0,0,.9);
}
.float-badge strong{display:block;font-size:30px;line-height:1;letter-spacing:-.02em;background:linear-gradient(96deg,#FFD9C2,#C6F24E);-webkit-background-clip:text;background-clip:text;color:transparent}
.float-badge span{display:block;margin-top:6px;font-size:12.5px;color:rgba(255,255,255,.72)}
.float-badge.top{left:auto;right:-18px;top:-20px;bottom:auto}

/* ---------- Intro ---------- */
.intro-band{background:#fff;border-bottom:1px solid var(--line)}
.intro-grid{display:grid;grid-template-columns:1.35fr 1fr;gap:44px;align-items:start}
.intro-text{font-size:17px;line-height:1.9;color:var(--ink-2)}
.intro-text strong{color:var(--ink)}
.intro-side{
  border:1px solid var(--line);border-radius:var(--r-card);
  padding:24px;background:linear-gradient(180deg,#fff,var(--brand-soft));
  box-shadow:var(--sh-1);
}
.intro-side h3{font-size:16px;margin-bottom:14px}
.intro-side li{
  display:flex;gap:10px;font-size:14.5px;color:var(--ink-2);
  padding:9px 0;border-bottom:1px dashed var(--line);
}
.intro-side li:last-child{border-bottom:0}
.dot{width:8px;height:8px;border-radius:50%;background:var(--grad);flex:none;margin-top:9px}

/* ---------- Zigzag ---------- */
.zigzag{display:flex;flex-direction:column;gap:72px}
.zig-item{display:grid;grid-template-columns:1fr 1fr;gap:52px;align-items:center}
.zig-item.reverse .zig-media{order:2}
.zig-media{position:relative}
.zig-media img{
  width:100%;aspect-ratio:16/11;object-fit:cover;
  border-radius:var(--r-big);border:1px solid var(--line);
  box-shadow:var(--sh-2);background:var(--brand-soft);
  transition:transform .35s ease;
}
.zig-media:hover img{transform:translateY(-4px)}
.zig-index{
  position:absolute;top:-16px;left:-12px;
  width:56px;height:56px;border-radius:18px;
  background:var(--grad);color:#fff;font-weight:800;font-size:19px;
  display:flex;align-items:center;justify-content:center;
  box-shadow:0 16px 30px -14px rgba(255,107,44,.9);
}
.zig-body h3{font-size:24px;line-height:1.4;letter-spacing:-.01em}
.zig-body p{margin-top:14px;color:var(--ink-2);font-size:16px;line-height:1.85}
.zig-list{margin-top:20px;display:flex;flex-direction:column;gap:10px}
.zig-list li{display:flex;gap:10px;font-size:15px;color:var(--ink-2)}
.tick{
  flex:none;width:20px;height:20px;border-radius:7px;margin-top:4px;
  background:rgba(18,199,184,.14);color:#0E9C90;font-size:12px;font-weight:800;
  display:flex;align-items:center;justify-content:center;
}

/* ---------- Stat band ---------- */
.stat-band{background:var(--deep-2);color:#fff;position:relative;overflow:hidden}
.stat-band::before{
  content:"";position:absolute;inset:0;
  background:radial-gradient(620px 320px at 82% 0%,rgba(122,92,255,.32),transparent 60%),
             radial-gradient(560px 320px at 8% 100%,rgba(255,107,44,.28),transparent 62%);
}
.stat-band .container{position:relative;z-index:2}
.stat-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:22px}
.stat-card{
  border:1px solid rgba(255,255,255,.14);
  border-radius:20px;padding:24px 22px;
  background:rgba(255,255,255,.04);
  transition:transform .25s ease,border-color .25s ease,background .25s ease;
}
.stat-card:hover{transform:translateY(-4px);border-color:rgba(198,242,78,.5);background:rgba(255,255,255,.07)}
.stat-num{
  font-size:46px;line-height:1;font-weight:800;letter-spacing:-.03em;
  background:linear-gradient(96deg,#FFD9C2,#C6F24E 58%,#7BF3E8);
  -webkit-background-clip:text;background-clip:text;color:transparent;
}
.stat-label{margin-top:12px;font-size:15px;font-weight:600;color:#fff}
.stat-desc{margin-top:6px;font-size:13.5px;color:rgba(255,255,255,.66);line-height:1.7}

/* ---------- Cards ---------- */
.card-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.info-card{
  background:var(--bg-card);border:1px solid var(--line);
  border-radius:var(--r-card);padding:26px 24px;
  box-shadow:var(--sh-1);
  transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease;
  display:flex;flex-direction:column;
}
.info-card:hover{transform:translateY(-4px);box-shadow:var(--sh-2);border-color:rgba(255,107,44,.2)}
.card-ico{
  width:46px;height:46px;border-radius:15px;
  display:flex;align-items:center;justify-content:center;
  font-size:17px;font-weight:800;color:#fff;background:var(--grad);
  margin-bottom:18px;box-shadow:0 12px 24px -14px rgba(255,107,44,.9);
}
.card-ico.alt{background:linear-gradient(118deg,#7A5CFF,#12C7B8)}
.card-ico.alt2{background:linear-gradient(118deg,#12C7B8,#2BD48A)}
.info-card h3{font-size:18px;line-height:1.45}
.info-card p{margin-top:10px;font-size:14.5px;color:var(--ink-2);line-height:1.8;flex:1 1 auto}
.card-tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:16px}
.tag{
  font-size:12.5px;color:var(--ink-2);background:var(--bg);
  border:1px solid var(--line);border-radius:999px;padding:4px 11px;
}
.tag.hot{color:#8A4517;background:var(--brand-soft);border-color:rgba(255,107,44,.24)}
.tag.safe{color:#0E7F6E;background:rgba(18,199,184,.12);border-color:rgba(18,199,184,.26)}

/* ---------- FAQ ---------- */
.faq-wrap{max-width:880px;margin:0 auto;display:flex;flex-direction:column;gap:14px}
.faq-item{
  background:#fff;border:1px solid var(--line);border-radius:16px;
  overflow:hidden;transition:border-color .25s ease,box-shadow .25s ease;position:relative;
}
.faq-item::before{
  content:"";position:absolute;left:0;top:0;bottom:0;width:4px;
  background:var(--grad);opacity:0;transition:opacity .25s ease;
}
.faq-item.is-open{border-color:rgba(255,107,44,.28);box-shadow:var(--sh-2)}
.faq-item.is-open::before{opacity:1}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:18px;
  padding:20px 24px;text-align:left;font-size:17px;font-weight:600;color:var(--ink);
}
.faq-ico{
  flex:none;width:26px;height:26px;border-radius:9px;position:relative;
  background:var(--brand-soft);transition:background .25s ease,transform .25s ease;
}
.faq-ico::before,.faq-ico::after{
  content:"";position:absolute;left:50%;top:50%;background:var(--brand);
  transform:translate(-50%,-50%);border-radius:2px;
}
.faq-ico::before{width:12px;height:2px}
.faq-ico::after{width:2px;height:12px;transition:opacity .25s ease,transform .25s ease}
.faq-item.is-open .faq-ico{background:var(--brand);transform:rotate(180deg)}
.faq-item.is-open .faq-ico::before{background:#fff}
.faq-item.is-open .faq-ico::after{opacity:0}
.faq-a{max-height:0;overflow:hidden;transition:max-height .24s ease}
.faq-a p{padding:0 24px 22px;color:var(--ink-2);font-size:15.5px;line-height:1.85}

/* ---------- Related ---------- */
.rel-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
.rel-card{
  display:flex;flex-direction:column;gap:10px;
  background:#fff;border:1px solid var(--line);border-radius:20px;
  padding:22px 20px;box-shadow:var(--sh-1);
  transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease;
}
.rel-card:hover{transform:translateY(-4px);box-shadow:var(--sh-2);border-color:rgba(255,107,44,.24)}
.rel-card h3{font-size:16.5px;line-height:1.45}
.rel-card p{font-size:14px;color:var(--ink-2);line-height:1.75;flex:1 1 auto}

/* ---------- CTA ---------- */
.cta-band{
  position:relative;overflow:hidden;border-radius:var(--r-big);
  background:var(--deep);color:#fff;padding:56px 52px;
  display:grid;grid-template-columns:1.3fr .7fr;gap:40px;align-items:center;
}
.cta-band::before{
  content:"";position:absolute;inset:0;
  background:radial-gradient(520px 300px at 88% 12%,rgba(122,92,255,.45),transparent 62%),
             radial-gradient(520px 300px at 6% 92%,rgba(255,107,44,.42),transparent 62%);
}
.cta-band > *{position:relative;z-index:2}
.cta-band h2{font-size:28px;line-height:1.36;letter-spacing:-.01em}
.cta-band p{margin-top:14px;color:rgba(255,255,255,.75);font-size:16px;line-height:1.8;max-width:560px}
.cta-actions{display:flex;flex-direction:column;gap:12px}

/* ---------- Footer ---------- */
.site-footer{background:var(--deep);color:rgba(255,255,255,.72);padding:72px 0 28px;margin-top:96px}
.footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr 1fr;gap:40px}
.footer-brand .logo{margin-bottom:18px}
.footer-brand .logo-text{color:#fff}
.footer-brand .logo-text b{color:var(--brand-2)}
.footer-brand p{font-size:14.5px;line-height:1.85;max-width:360px}
.footer-col h4{color:#fff;font-size:15px;margin-bottom:16px;font-weight:600}
.footer-col li{margin-bottom:10px}
.footer-col a{font-size:14px;color:rgba(255,255,255,.68);transition:color .2s ease}
.footer-col a:hover{color:var(--cyan)}
.footer-bottom{
  margin-top:48px;padding-top:22px;border-top:1px solid rgba(255,255,255,.12);
  display:flex;justify-content:space-between;gap:14px;flex-wrap:wrap;
  font-size:13.5px;color:rgba(255,255,255,.5);
}

/* ---------- Responsive ---------- */
@media (max-width:1279px){
  .container{padding:0 28px}
}
@media (max-width:1023px){
  .section{padding:72px 0}
  .section-tight{padding:56px 0}
  .header-inner{flex-wrap:wrap;gap:12px;padding-top:10px;padding-bottom:10px}
  .nav-chips{order:3;flex:1 0 100%;padding-bottom:10px}
  .header-cta{margin-left:auto}
  .hero-grid{grid-template-columns:1fr;gap:40px}
  .hero-title{font-size:34px}
  .hero-visual{max-width:560px}
  .intro-grid{grid-template-columns:1fr;gap:28px}
  .zig-item,.zig-item.reverse{grid-template-columns:1fr;gap:28px}
  .zig-item.reverse .zig-media{order:0}
  .stat-grid{grid-template-columns:repeat(2,1fr)}
  .card-grid{grid-template-columns:repeat(2,1fr)}
  .rel-grid{grid-template-columns:repeat(2,1fr)}
  .cta-band{grid-template-columns:1fr;padding:44px 32px}
  .cta-actions{flex-direction:row;flex-wrap:wrap}
  .footer-grid{grid-template-columns:1fr 1fr}
  .footer-brand{grid-column:1 / -1}
}
@media (max-width:640px){
  .container{padding:0 20px}
  .section{padding:56px 0}
  .section-tight{padding:48px 0}
  .page-hero{padding:34px 0 64px}
  .hero-title{font-size:30px;line-height:1.3}
  .hero-sub{font-size:15.5px}
  .hero-actions .btn{width:100%}
  .btn{height:46px}
  .float-badge{left:12px;bottom:-18px;min-width:160px;padding:12px 14px}
  .float-badge.top{left:auto;right:12px;top:-16px}
  .stat-grid{grid-template-columns:1fr 1fr;gap:14px}
  .stat-num{font-size:36px}
  .card-grid,.rel-grid{grid-template-columns:1fr}
  .cta-band{padding:34px 22px}
  .cta-band h2{font-size:23px}
  .cta-actions{flex-direction:column}
  .footer-grid{grid-template-columns:1fr}
  .footer-bottom{flex-direction:column}
  .faq-q{padding:17px 18px;font-size:15.5px}
  .faq-a p{padding:0 18px 18px;font-size:14.5px}
  .zig-body h3{font-size:20px}
}

/* roulang page: category4 */
:root{
    --brand-1:#FF6B2C;
    --brand-2:#FF8A3D;
    --brand-3:#7A5CFF;
    --brand-4:#12C7B8;
    --brand-press:#E5541A;
    --brand-soft:#FFF1E8;
    --lime:#C6F24E;
    --dark:#121016;
    --dark-2:#1A1622;
    --light:#F7F4EF;
    --white:#FFFFFF;
    --line:rgba(18,16,22,.08);
    --line-strong:rgba(18,16,22,.14);
    --t1:#17131C;
    --t2:#5F5868;
    --t3:#8B8494;
    --on-dark:rgba(255,255,255,.72);
    --ok:#2BD48A;
    --warn:#FFB020;
    --err:#E5484D;
    --r-btn:14px;
    --r-chip:999px;
    --r-card:22px;
    --r-lg:28px;
    --sh1:0 1px 2px rgba(18,16,22,.06);
    --sh2:0 12px 32px -12px rgba(18,16,22,.18);
    --grad:linear-gradient(118deg,#FF6B2C 0%,#FF8A3D 28%,#7A5CFF 68%,#12C7B8 100%);
    --font:system-ui,-apple-system,"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",sans-serif;
  }

  *,*::before,*::after{box-sizing:border-box;}
  html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
  body{
    margin:0;
    font-family:var(--font);
    font-size:16px;
    line-height:1.75;
    color:var(--t1);
    background:var(--white);
    font-variant-numeric:tabular-nums;
  }
  img{max-width:100%;display:block;}
  a{color:inherit;text-decoration:none;}
  button{font-family:inherit;}
  ul,ol{margin:0;padding:0;list-style:none;}
  h1,h2,h3,h4,p{margin:0;}
  h1,h2,h3,h4{font-weight:700;line-height:1.3;}
  :focus-visible{outline:3px solid rgba(255,107,44,.35);outline-offset:2px;border-radius:8px;}

  .container{
    width:100%;
    max-width:1200px;
    margin:0 auto;
    padding-left:20px;
    padding-right:20px;
  }
  .container-wide{max-width:1320px;}

  /* ===== header / nav ===== */
  .site-header{
    position:sticky;
    top:0;
    z-index:60;
    background:rgba(255,255,255,.94);
    backdrop-filter:saturate(1.4) blur(10px);
    border-bottom:1px solid var(--line);
    transition:box-shadow .25s ease;
  }
  .site-header.is-scrolled{box-shadow:0 8px 24px -14px rgba(18,16,22,.28);}
  .header-top{
    display:flex;
    align-items:center;
    justify-content:space-between;
    gap:16px;
    min-height:72px;
  }
  .logo{
    display:inline-flex;
    align-items:center;
    gap:10px;
    flex-shrink:0;
  }
  .logo-mark{
    display:inline-flex;
    align-items:center;
    justify-content:center;
    width:40px;height:40px;
    border-radius:12px;
    background:var(--grad);
    color:#fff;
    font-size:15px;
    font-weight:700;
    letter-spacing:.5px;
    box-shadow:0 8px 18px -10px rgba(255,107,44,.9);
  }
  .logo-text{
    font-size:19px;
    font-weight:600;
    letter-spacing:.2px;
    color:var(--t1);
    white-space:nowrap;
  }
  .logo-text b{font-weight:700;color:var(--brand-1);}
  .header-actions{display:flex;align-items:center;gap:12px;}
  .btn{
    display:inline-flex;
    align-items:center;
    justify-content:center;
    gap:8px;
    padding:14px 24px;
    font-size:15px;
    font-weight:600;
    border-radius:var(--r-btn);
    border:1px solid transparent;
    cursor:pointer;
    transition:transform .2s ease,box-shadow .2s ease,background-color .2s ease,color .2s ease,border-color .2s ease;
    white-space:nowrap;
  }
  .btn-primary{
    background:var(--grad);
    color:#fff;
    box-shadow:0 12px 26px -14px rgba(255,107,44,.95);
  }
  .btn-primary:hover{transform:translateY(-2px);filter:brightness(1.05);box-shadow:0 18px 32px -14px rgba(255,107,44,.95);}
  .btn-primary:active{transform:translateY(1px);background:var(--brand-press);}
  .btn-ghost{
    border-color:var(--brand-1);
    color:var(--brand-press);
    background:transparent;
  }
  .btn-ghost:hover{background:rgba(255,107,44,.08);transform:translateY(-2px);}
  .btn-ghost:active{transform:translateY(1px);}
  .btn-sm{padding:10px 18px;font-size:14px;border-radius:999px;}
  .btn-light{
    background:rgba(255,255,255,.12);
    color:#fff;
    border-color:rgba(255,255,255,.36);
  }
  .btn-light:hover{background:rgba(255,255,255,.2);transform:translateY(-2px);}
  .nav-btn{width:100%;text-align:center;}

  .nav-bar{
    border-top:1px solid var(--line);
    background:linear-gradient(180deg,rgba(247,244,239,.9),rgba(255,255,255,.6));
  }
  .nav-chips{
    display:flex;
    align-items:center;
    gap:10px;
    overflow-x:auto;
    padding:10px 0 12px;
    scrollbar-width:none;
  }
  .nav-chips::-webkit-scrollbar{display:none;}
  .chip{
    display:inline-flex;
    align-items:center;
    height:38px;
    padding:0 18px;
    font-size:14px;
    font-weight:500;
    color:var(--t2);
    border:1px solid var(--line-strong);
    border-radius:var(--r-chip);
    background:transparent;
    white-space:nowrap;
    transition:transform .2s ease,color .2s ease,border-color .2s ease,background-color .2s ease;
  }
  .chip:hover{transform:translateY(-2px);color:var(--brand-press);border-color:rgba(255,107,44,.4);background:rgba(255,107,44,.06);}
  .chip.is-active{
    background:var(--grad);
    color:#fff;
    border-color:transparent;
    box-shadow:0 10px 22px -14px rgba(122,92,255,.95);
  }
  .chip.is-active:hover{color:#fff;transform:translateY(-2px);}

  /* ===== breadcrumb ===== */
  .crumb-bar{padding:18px 0 0;}
  .crumb{
    font-size:13px;
    color:var(--t3);
    display:flex;
    flex-wrap:wrap;
    align-items:center;
    gap:8px;
  }
  .crumb a:hover{color:var(--brand-press);}
  .crumb .sep{color:var(--line-strong);}
  .crumb .now{color:var(--t2);}

  /* ===== hero ===== */
  .hero{
    position:relative;
    overflow:hidden;
    background:var(--dark);
    color:#fff;
    margin-top:18px;
    border-radius:var(--r-lg);
  }
  .hero-inner{
    position:relative;
    z-index:2;
    display:grid;
    grid-template-columns:1fr;
    gap:40px;
    padding:56px 24px;
  }
  .hero::before{
    content:"";
    position:absolute;
    inset:0;
    background-image:url("/assets/images/backpic/back-2.webp");
    background-size:cover;
    background-position:center;
    opacity:.18;
  }
  .hero::after{
    content:"";
    position:absolute;
    inset:0;
    background:
      radial-gradient(560px 320px at 12% 8%,rgba(255,107,44,.42),transparent 66%),
      radial-gradient(520px 340px at 88% 92%,rgba(18,199,184,.32),transparent 68%),
      linear-gradient(140deg,rgba(18,16,22,.94),rgba(26,22,34,.9));
  }
  .tag-row{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:20px;}
  .tag{
    display:inline-flex;
    align-items:center;
    gap:6px;
    padding:6px 12px;
    font-size:12px;
    font-weight:600;
    letter-spacing:.3px;
    border-radius:var(--r-chip);
    background:rgba(255,255,255,.1);
    border:1px solid rgba(255,255,255,.2);
    color:#fff;
  }
  .tag.is-lime{background:rgba(198,242,78,.16);border-color:rgba(198,242,78,.42);color:var(--lime);}
  .hero h1{
    font-size:30px;
    line-height:1.34;
    margin-bottom:18px;
    letter-spacing:.2px;
  }
  .hero h1 .hl{
    background:var(--grad);
    -webkit-background-clip:text;
    background-clip:text;
    color:transparent;
  }
  .hero-sub{
    font-size:16px;
    line-height:1.85;
    color:var(--on-dark);
    max-width:620px;
    margin-bottom:26px;
  }
  .hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-bottom:26px;}
  .hero-note{
    font-size:13px;
    color:rgba(255,255,255,.55);
    display:flex;
    align-items:center;
    gap:8px;
  }
  .hero-side{display:flex;flex-direction:column;gap:14px;}
  .stat-badge{
    display:flex;
    align-items:center;
    gap:16px;
    padding:18px 20px;
    border-radius:20px;
    background:rgba(255,255,255,.07);
    border:1px solid rgba(255,255,255,.14);
    backdrop-filter:blur(6px);
  }
  .stat-badge .num{
    font-size:40px;
    font-weight:700;
    line-height:1;
    background:var(--grad);
    -webkit-background-clip:text;
    background-clip:text;
    color:transparent;
    min-width:96px;
  }
  .stat-badge .lab{font-size:14px;color:var(--on-dark);line-height:1.6;}
  .stat-badge .lab b{color:#fff;font-weight:600;display:block;font-size:15px;margin-bottom:2px;}
  .hero-thumb{
    border-radius:20px;
    overflow:hidden;
    border:1px solid rgba(255,255,255,.14);
    aspect-ratio:16/9;
  }
  .hero-thumb img{width:100%;height:100%;object-fit:cover;}

  /* ===== section base ===== */
  .section{padding:64px 0;}
  .section-light{background:var(--light);}
  .section-dark{background:var(--dark);color:#fff;}
  .section-white{background:var(--white);}
  .sec-head{max-width:760px;margin-bottom:36px;}
  .sec-kicker{
    display:inline-flex;
    align-items:center;
    gap:8px;
    font-size:13px;
    font-weight:600;
    color:var(--brand-press);
    letter-spacing:1px;
    margin-bottom:12px;
  }
  .sec-kicker::before{
    content:"";
    width:26px;height:3px;border-radius:2px;
    background:var(--grad);
  }
  .sec-head h2{font-size:26px;line-height:1.35;margin-bottom:12px;}
  .sec-lead{font-size:16px;color:var(--t2);line-height:1.85;}
  .section-dark .sec-kicker{color:var(--lime);}
  .section-dark .sec-head h2{color:#fff;}
  .section-dark .sec-lead{color:var(--on-dark);}

  /* ===== intro ===== */
  .intro-wrap{
    display:grid;
    grid-template-columns:1fr;
    gap:28px;
    align-items:center;
  }
  .intro-text p{font-size:16px;color:var(--t2);line-height:1.9;}
  .intro-text p + p{margin-top:14px;}
  .intro-media{
    border-radius:var(--r-lg);
    overflow:hidden;
    border:1px solid var(--line);
    box-shadow:var(--sh2);
    aspect-ratio:16/10;
  }
  .intro-media img{width:100%;height:100%;object-fit:cover;}

  /* ===== tabs ===== */
  .tab-shell{
    background:var(--white);
    border:1px solid var(--line);
    border-radius:var(--r-lg);
    box-shadow:var(--sh2);
    padding:24px;
  }
  .tab-list{
    display:flex;
    gap:8px;
    overflow-x:auto;
    padding-bottom:14px;
    border-bottom:1px solid var(--line);
    scrollbar-width:none;
  }
  .tab-list::-webkit-scrollbar{display:none;}
  .tab-item{
    display:inline-flex;
    align-items:center;
    gap:8px;
    height:40px;
    padding:0 18px;
    font-size:14px;
    font-weight:600;
    color:var(--t2);
    background:var(--light);
    border:1px solid transparent;
    border-radius:var(--r-chip);
    cursor:pointer;
    white-space:nowrap;
    transition:all .2s ease;
  }
  .tab-item:hover{transform:translateY(-2px);color:var(--brand-press);}
  .tab-item.is-active{
    background:var(--grad);
    color:#fff;
    box-shadow:0 10px 22px -14px rgba(255,107,44,.95);
  }
  .tab-panels{padding-top:24px;}
  .tab-panel{display:none;}
  .tab-panel.is-active{display:block;animation:fadeUp .3s ease both;}
  @keyframes fadeUp{from{opacity:0;transform:translateY(8px);}to{opacity:1;transform:none;}}
  .panel-grid{
    display:grid;
    grid-template-columns:1fr;
    gap:24px;
    align-items:start;
  }
  .panel-copy h3{font-size:20px;margin-bottom:10px;}
  .panel-copy p{font-size:15px;color:var(--t2);line-height:1.85;margin-bottom:16px;}
  .check-list li{
    display:flex;
    gap:10px;
    font-size:15px;
    color:var(--t2);
    line-height:1.75;
    padding:10px 0;
    border-bottom:1px dashed var(--line);
  }
  .check-list li:last-child{border-bottom:0;}
  .check-list i{color:var(--brand-4);margin-top:4px;font-size:14px;}
  .panel-card{
    background:var(--light);
    border:1px solid var(--line);
    border-radius:var(--r-card);
    padding:20px;
  }
  .panel-card h4{
    font-size:15px;
    margin-bottom:14px;
    display:flex;
    align-items:center;
    gap:8px;
    color:var(--t1);
  }
  .panel-card h4 i{color:var(--brand-1);}
  .mini-row{
    display:flex;
    justify-content:space-between;
    align-items:center;
    gap:12px;
    font-size:14px;
    padding:10px 0;
    border-bottom:1px solid var(--line);
  }
  .mini-row:last-child{border-bottom:0;}
  .mini-row span:first-child{color:var(--t2);}
  .mini-row span:last-child{font-weight:600;color:var(--t1);}
  .pill-ok{
    display:inline-flex;align-items:center;gap:6px;
    padding:3px 10px;font-size:12px;font-weight:600;
    border-radius:var(--r-chip);
    background:rgba(43,212,138,.14);color:#12905f;
  }
  .pill-warn{
    display:inline-flex;align-items:center;gap:6px;
    padding:3px 10px;font-size:12px;font-weight:600;
    border-radius:var(--r-chip);
    background:rgba(255,176,32,.18);color:#95610a;
  }

  /* ===== card grid ===== */
  .card-grid{
    display:grid;
    grid-template-columns:1fr;
    gap:20px;
  }
  .card{
    background:var(--white);
    border:1px solid var(--line);
    border-radius:var(--r-card);
    padding:24px;
    box-shadow:var(--sh1);
    transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease;
  }
  .card:hover{
    transform:translateY(-4px);
    box-shadow:var(--sh2);
    border-color:rgba(255,107,44,.4);
  }
  .card-icon{
    display:inline-flex;
    align-items:center;
    justify-content:center;
    width:46px;height:46px;
    border-radius:14px;
    background:var(--brand-soft);
    color:var(--brand-press);
    font-size:19px;
    margin-bottom:16px;
  }
  .card h3{font-size:18px;margin-bottom:10px;}
  .card p{font-size:14.5px;color:var(--t2);line-height:1.8;}
  .card .more{
    display:inline-flex;
    align-items:center;
    gap:6px;
    margin-top:14px;
    font-size:14px;
    font-weight:600;
    color:var(--brand-press);
    transition:gap .2s ease;
  }
  .card .more:hover{gap:12px;}

  /* ===== data band ===== */
  .band-grid{
    display:grid;
    grid-template-columns:repeat(2,minmax(0,1fr));
    gap:18px;
  }
  .band-item{
    padding:22px;
    border-radius:var(--r-card);
    background:rgba(255,255,255,.06);
    border:1px solid rgba(255,255,255,.12);
    transition:transform .25s ease,background-color .25s ease;
  }
  .band-item:hover{transform:translateY(-4px);background:rgba(255,255,255,.1);}
  .band-item .num{
    font-size:40px;
    font-weight:700;
    line-height:1;
    background:var(--grad);
    -webkit-background-clip:text;
    background-clip:text;
    color:transparent;
    margin-bottom:10px;
  }
  .band-item .ttl{font-size:15px;font-weight:600;color:#fff;margin-bottom:6px;}
  .band-item .dsc{font-size:14px;color:var(--on-dark);line-height:1.7;}

  /* ===== steps ===== */
  .steps{display:grid;grid-template-columns:1fr;gap:18px;}
  .step{
    display:flex;
    gap:16px;
    padding:20px;
    background:var(--white);
    border:1px solid var(--line);
    border-radius:var(--r-card);
    box-shadow:var(--sh1);
    transition:transform .25s ease,box-shadow .25s ease;
  }
  .step:hover{transform:translateY(-4px);box-shadow:var(--sh2);}
  .step-no{
    flex-shrink:0;
    width:44px;height:44px;
    display:flex;align-items:center;justify-content:center;
    border-radius:14px;
    font-weight:700;
    font-size:16px;
    color:#fff;
    background:var(--grad);
  }
  .step h3{font-size:17px;margin-bottom:8px;}
  .step p{font-size:14.5px;color:var(--t2);line-height:1.8;}

  /* ===== FAQ ===== */
  .faq-wrap{max-width:880px;margin:0 auto;}
  .faq-item{
    background:var(--white);
    border:1px solid var(--line);
    border-radius:16px;
    margin-bottom:12px;
    overflow:hidden;
    transition:border-color .25s ease,box-shadow .25s ease;
  }
  .faq-item:hover{border-color:rgba(255,107,44,.32);}
  .faq-item.is-open{box-shadow:var(--sh2);border-color:rgba(255,107,44,.4);}
  .faq-q{
    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(--t1);
    cursor:pointer;
  }
  .faq-q .ico{
    flex-shrink:0;
    width:28px;height:28px;
    display:flex;align-items:center;justify-content:center;
    border-radius:9px;
    background:var(--brand-soft);
    color:var(--brand-press);
    font-size:15px;
    transition:transform .24s ease,background-color .24s ease,color .24s ease;
  }
  .faq-item.is-open .faq-q .ico{background:var(--grad);color:#fff;transform:rotate(180deg);}
  .faq-a{
    max-height:0;
    overflow:hidden;
    transition:max-height .24s ease;
  }
  .faq-a-inner{
    padding:0 22px 20px;
    font-size:15px;
    color:var(--t2);
    line-height:1.85;
    border-left:3px solid transparent;
  }
  .faq-item.is-open .faq-a-inner{border-left-color:var(--brand-1);}

  /* ===== related ===== */
  .rel-grid{display:grid;grid-template-columns:1fr;gap:18px;}
  .rel-card{
    display:block;
    padding:22px;
    border-radius:var(--r-card);
    border:1px solid var(--line);
    background:var(--white);
    box-shadow:var(--sh1);
    transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease;
  }
  .rel-card:hover{transform:translateY(-4px);box-shadow:var(--sh2);border-color:rgba(122,92,255,.4);}
  .rel-card .rel-slug{
    font-size:12px;
    font-weight:600;
    letter-spacing:.6px;
    color:var(--brand-3);
    text-transform:uppercase;
    margin-bottom:8px;
  }
  .rel-card h3{font-size:17px;margin-bottom:8px;}
  .rel-card p{font-size:14px;color:var(--t2);line-height:1.75;}

  /* ===== CTA ===== */
  .cta-box{
    position:relative;
    overflow:hidden;
    border-radius:var(--r-lg);
    background:var(--dark);
    color:#fff;
    padding:44px 24px;
  }
  .cta-box::after{
    content:"";
    position:absolute;
    inset:0;
    background:
      radial-gradient(420px 260px at 90% 10%,rgba(122,92,255,.55),transparent 66%),
      radial-gradient(420px 260px at 6% 96%,rgba(18,199,184,.42),transparent 68%);
  }
  .cta-inner{position:relative;z-index:2;display:grid;grid-template-columns:1fr;gap:26px;align-items:center;}
  .cta-inner h2{font-size:24px;line-height:1.4;margin-bottom:12px;}
  .cta-inner p{font-size:15px;color:var(--on-dark);line-height:1.85;}
  .cta-actions{display:flex;flex-wrap:wrap;gap:12px;}

  /* ===== footer ===== */
  .site-footer{background:var(--dark);color:var(--on-dark);padding:56px 0 24px;margin-top:0;}
  .footer-grid{
    display:grid;
    grid-template-columns:1fr;
    gap:32px;
    padding-bottom:32px;
    border-bottom:1px solid rgba(255,255,255,.1);
  }
  .footer-brand .logo-text{color:#fff;font-size:20px;}
  .footer-brand .logo-text b{color:var(--brand-2);}
  .footer-brand p{margin-top:16px;font-size:14px;line-height:1.85;color:rgba(255,255,255,.62);max-width:420px;}
  .footer-col h4{font-size:15px;color:#fff;margin-bottom:16px;}
  .footer-col ul li{margin-bottom:10px;}
  .footer-col ul a{font-size:14px;color:rgba(255,255,255,.62);transition:color .2s ease,padding-left .2s ease;}
  .footer-col ul a:hover{color:var(--brand-4);padding-left:4px;}
  .footer-bottom{
    display:flex;
    flex-wrap:wrap;
    gap:10px;
    justify-content:space-between;
    padding-top:20px;
    font-size:13px;
    color:rgba(255,255,255,.5);
  }

  @media (min-width:640px){
    .container{padding-left:24px;padding-right:24px;}
    .hero-inner{padding:64px 32px;}
    .hero h1{font-size:34px;}
    .card-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
    .band-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
    .steps{grid-template-columns:repeat(2,minmax(0,1fr));}
    .rel-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
    .footer-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
    .footer-brand{grid-column:1/-1;}
    .section{padding:80px 0;}
    .sec-head h2{font-size:28px;}
  }
  @media (min-width:1024px){
    .container{padding-left:32px;padding-right:32px;}
    .hero-inner{grid-template-columns:6fr 6fr;padding:72px 44px;align-items:center;gap:48px;}
    .hero h1{font-size:40px;}
    .hero-sub{font-size:17px;}
    .intro-wrap{grid-template-columns:7fr 5fr;gap:44px;}
    .panel-grid{grid-template-columns:7fr 5fr;gap:32px;}
    .card-grid{grid-template-columns:repeat(3,minmax(0,1fr));}
    .band-grid{grid-template-columns:repeat(4,minmax(0,1fr));}
    .steps{grid-template-columns:repeat(3,minmax(0,1fr));}
    .rel-grid{grid-template-columns:repeat(3,minmax(0,1fr));}
    .cta-inner{grid-template-columns:2fr 1fr;gap:40px;}
    .section{padding:96px 0;}
    .footer-grid{grid-template-columns:2fr 1fr 1fr 1fr;}
    .footer-brand{grid-column:auto;}
  }
  @media (max-width:639px){
    .header-actions .btn-primary{display:none;}
    .hero-actions .btn{width:100%;}
    .stat-badge .num{font-size:34px;min-width:78px;}
  }

/* roulang page: category5 */
:root{
  --brand:#FF6B2C;
  --brand-press:#E5541A;
  --brand-soft:#FFF1E8;
  --cyan:#12C7B8;
  --violet:#7A5CFF;
  --lime:#C6F24E;
  --ink:#17131C;
  --ink-2:#5F5868;
  --ink-3:#8B8494;
  --dark:#121016;
  --dark-2:#1A1622;
  --light:#F7F4EF;
  --white:#FFFFFF;
  --line:rgba(18,16,22,.08);
  --line-strong:rgba(18,16,22,.14);
  --grad:linear-gradient(118deg,#FF6B2C 0%,#FF8A3D 28%,#7A5CFF 68%,#12C7B8 100%);
  --grad-soft:linear-gradient(118deg,rgba(255,107,44,.14) 0%,rgba(122,92,255,.12) 60%,rgba(18,199,184,.14) 100%);
  --r-btn:14px;
  --r-card:22px;
  --r-lg:28px;
  --sh-1:0 1px 2px rgba(18,16,22,.06);
  --sh-2:0 12px 32px -12px rgba(18,16,22,.18);
  --sh-3:0 20px 48px -18px rgba(18,16,22,.28);
  --maxw:1200px;
  --maxw-wide:1320px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:system-ui,-apple-system,"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",sans-serif;
  color:var(--ink);
  background:var(--white);
  font-size:16px;
  line-height:1.75;
  font-variant-numeric:tabular-nums;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;}
button,input,textarea,select{font:inherit;color:inherit;}
h1,h2,h3,h4{margin:0;line-height:1.28;font-weight:700;letter-spacing:-.01em;}
p{margin:0;}
ul{margin:0;padding:0;list-style:none;}
:focus-visible{outline:3px solid rgba(255,107,44,.35);outline-offset:2px;border-radius:6px;}
.container{width:100%;max-width:var(--maxw);margin:0 auto;padding:0 20px;}
@media (min-width:640px){.container{padding:0 24px;}}
@media (min-width:1024px){.container{padding:0 32px;}}
.container-wide{max-width:var(--maxw-wide);}

/* ============ header ============ */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(255,255,255,.92);
  backdrop-filter:saturate(160%) blur(12px);
  border-bottom:1px solid var(--line);
  transition:box-shadow .25s ease;
}
.site-header.is-scrolled{box-shadow:0 8px 26px -18px rgba(18,16,22,.42);}
.header-bar{
  min-height:72px;display:flex;align-items:center;justify-content:space-between;gap:18px;
}
.logo{display:inline-flex;align-items:center;gap:10px;font-weight:700;font-size:19px;letter-spacing:-.02em;}
.logo-mark{
  width:36px;height:36px;border-radius:12px;background:var(--grad);
  display:inline-flex;align-items:center;justify-content:center;
  color:#fff;font-size:14px;font-weight:700;letter-spacing:.02em;
  box-shadow:0 8px 18px -10px rgba(255,107,44,.9);
}
.logo-text{color:var(--ink);}
.logo-text b{font-weight:600;color:var(--ink-2);}
.header-actions{display:flex;align-items:center;gap:14px;}
.header-note{font-size:13px;color:var(--ink-3);}
.nav-wrap{padding-bottom:12px;}
.nav-chips{
  display:flex;gap:8px;overflow-x:auto;padding:4px 2px 8px;
  scrollbar-width:none;-ms-overflow-style:none;
}
.nav-chips::-webkit-scrollbar{display:none;}
.chip{
  display:inline-flex;align-items:center;height:38px;padding:0 18px;
  border-radius:999px;font-size:15px;color:var(--ink-2);
  border:1px solid transparent;background:transparent;white-space:nowrap;
  transition:background .2s ease,color .2s ease,transform .2s ease,box-shadow .2s ease;
}
.chip:hover{color:var(--ink);background:rgba(255,107,44,.08);transform:translateY(-1px);}
.chip.is-active{background:var(--grad);color:#fff;box-shadow:0 10px 22px -12px rgba(255,107,44,.95);}

/* ============ buttons ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:14px 24px;border-radius:999px;font-size:15px;font-weight:600;
  border:1px solid transparent;cursor:pointer;
  transition:transform .2s ease,box-shadow .2s ease,background .2s ease,filter .2s ease,color .2s ease;
}
.btn-primary{background:var(--grad);color:#fff;box-shadow:0 12px 26px -14px rgba(255,107,44,.95);}
.btn-primary:hover{transform:translateY(-2px);filter:brightness(1.05);box-shadow:0 18px 34px -14px rgba(255,107,44,.9);}
.btn-primary:active{transform:translateY(1px);background:var(--brand-press);}
.btn-ghost{border:1.5px solid var(--brand);color:var(--brand-press);background:transparent;}
.btn-ghost:hover{background:rgba(255,107,44,.08);transform:translateY(-2px);}
.btn-light{background:#fff;color:var(--ink);border-color:rgba(255,255,255,.3);}
.btn-light:hover{transform:translateY(-2px);box-shadow:var(--sh-2);}
.btn-sm{padding:10px 18px;font-size:14px;}

/* ============ hero ============ */
.page-hero{position:relative;background:var(--dark);color:#fff;overflow:hidden;}
.page-hero-bg{
  position:absolute;inset:0;
  background-image:url('/assets/images/backpic/back-2.webp');
  background-size:cover;background-position:center;
  opacity:.18;
}
.page-hero::after{
  content:"";position:absolute;inset:0;
  background:
    radial-gradient(620px 320px at 12% 8%,rgba(255,107,44,.34),transparent 68%),
    radial-gradient(560px 320px at 88% 22%,rgba(122,92,255,.3),transparent 70%),
    radial-gradient(520px 300px at 62% 108%,rgba(18,199,184,.26),transparent 72%),
    linear-gradient(180deg,rgba(18,16,22,.62) 0%,rgba(18,16,22,.94) 100%);
}
.page-hero-inner{position:relative;z-index:2;padding:64px 0 76px;}
.crumbs{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:rgba(255,255,255,.66);}
.crumbs a:hover{color:#fff;}
.crumbs span.sep{color:rgba(255,255,255,.36);}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;margin-top:22px;
  padding:8px 16px;border-radius:999px;font-size:13px;font-weight:600;
  color:#fff;background:rgba(255,255,255,.08);
  border:1px solid rgba(255,255,255,.18);
}
.eyebrow i{color:var(--lime);}
.page-hero h1{
  margin-top:18px;font-size:30px;line-height:1.3;max-width:20ch;
}
@media (min-width:768px){.page-hero h1{font-size:38px;}}
@media (min-width:1024px){.page-hero h1{font-size:44px;line-height:1.24;max-width:24ch;}}
.lede{margin-top:18px;max-width:60ch;font-size:16px;line-height:1.85;color:rgba(255,255,255,.76);}
.hero-cta{display:flex;flex-wrap:wrap;gap:14px;margin-top:30px;}
.hero-badges{display:flex;flex-wrap:wrap;gap:14px;margin-top:38px;}
.badge{
  display:flex;flex-direction:column;gap:2px;
  padding:14px 20px;border-radius:18px;min-width:150px;
  background:rgba(255,255,255,.07);
  border:1px solid rgba(255,255,255,.16);
  backdrop-filter:blur(6px);
}
.badge b{font-size:26px;line-height:1.1;font-weight:700;color:#fff;}
.badge span{font-size:13px;color:rgba(255,255,255,.66);}
.badge.is-lime{border-color:rgba(198,242,78,.5);}
.badge.is-lime b{color:var(--lime);}

/* ============ sections ============ */
.section{padding:64px 0;}
@media (min-width:1024px){.section{padding:96px 0;}}
.section-alt{background:var(--light);}
.section-dark{background:var(--dark);color:#fff;}
.section-head{max-width:760px;}
.section-head h2{font-size:26px;}
@media (min-width:768px){.section-head h2{font-size:30px;}}
.section-head p{margin-top:14px;color:var(--ink-2);font-size:16px;line-height:1.85;}
.section-dark .section-head p{color:rgba(255,255,255,.72);}
.kicker{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;font-weight:600;color:var(--brand-press);
  padding:6px 14px;border-radius:999px;background:var(--brand-soft);
  margin-bottom:16px;
}
.section-dark .kicker{background:rgba(255,255,255,.1);color:var(--lime);}
.rule{height:4px;width:64px;border-radius:999px;background:var(--grad);margin-top:18px;}

/* ============ intro ============ */
.intro-grid{display:grid;gap:32px;align-items:start;}
@media (min-width:1024px){.intro-grid{grid-template-columns:1.15fr .85fr;gap:56px;}}
.intro-text p{font-size:16px;line-height:1.9;color:var(--ink-2);}
.intro-text p + p{margin-top:16px;}
.intro-figure{
  border-radius:var(--r-lg);overflow:hidden;border:1px solid var(--line);
  box-shadow:var(--sh-2);background:var(--brand-soft);
}
.intro-figure img{width:100%;aspect-ratio:16/10;object-fit:cover;}
.intro-figure figcaption{padding:14px 18px;font-size:13px;color:var(--ink-3);background:#fff;border-top:1px solid var(--line);}

/* ============ timeline ============ */
.timeline{margin-top:44px;position:relative;}
.timeline::before{
  content:"";position:absolute;left:19px;top:12px;bottom:12px;width:2px;
  background:linear-gradient(180deg,rgba(255,107,44,.9),rgba(122,92,255,.7),rgba(18,199,184,.7));
  border-radius:2px;
}
.tl-item{position:relative;display:grid;grid-template-columns:40px 1fr;gap:20px;padding-bottom:30px;}
.tl-item:last-child{padding-bottom:0;}
.tl-num{
  width:40px;height:40px;border-radius:14px;background:#fff;
  border:1px solid var(--line);display:flex;align-items:center;justify-content:center;
  font-weight:700;font-size:15px;color:var(--brand-press);box-shadow:var(--sh-1);z-index:2;
}
.tl-body{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-card);
  padding:20px 22px;box-shadow:var(--sh-1);transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease;
}
.tl-body:hover{transform:translateY(-3px);box-shadow:var(--sh-2);border-color:rgba(255,107,44,.22);}
.tl-body h3{font-size:19px;}
.tl-body p{margin-top:8px;color:var(--ink-2);font-size:15px;line-height:1.85;}
.tl-tag{
  display:inline-flex;align-items:center;gap:6px;margin-top:12px;
  font-size:13px;font-weight:600;color:var(--cyan);
  background:rgba(18,199,184,.1);border-radius:999px;padding:5px 12px;
}

/* ============ compare ============ */
.compare{margin-top:40px;border:1px solid var(--line);border-radius:var(--r-lg);overflow:hidden;background:#fff;box-shadow:var(--sh-1);}
.compare-head{display:grid;grid-template-columns:1fr 1fr;background:var(--dark);color:#fff;}
.compare-head div{padding:16px 22px;font-size:14px;font-weight:600;}
.compare-head div:last-child{background:rgba(255,107,44,.14);}
.compare-row{display:grid;grid-template-columns:1fr 1fr;border-top:1px solid var(--line);}
.compare-row > div{padding:18px 22px;font-size:15px;line-height:1.8;}
.compare-row .c-before{color:var(--ink-2);background:#fff;display:flex;gap:10px;align-items:flex-start;}
.compare-row .c-before i{color:var(--brand);margin-top:5px;font-size:13px;}
.compare-row .c-after{
  color:var(--ink);background:var(--brand-soft);border-left:3px solid transparent;
  border-image:linear-gradient(180deg,#FF6B2C,#7A5CFF) 1;
  display:flex;gap:10px;align-items:flex-start;
}
.compare-row .c-after i{color:var(--cyan);margin-top:5px;font-size:13px;}
.compare-row:hover .c-before{background:#fdfbf8;}

/* ============ cards ============ */
.grid-3{display:grid;gap:22px;grid-template-columns:1fr;margin-top:42px;}
@media (min-width:640px){.grid-3{grid-template-columns:repeat(2,1fr);}}
@media (min-width:1024px){.grid-3{grid-template-columns:repeat(3,1fr);gap:26px;}}
.card{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-card);
  padding:24px;box-shadow:var(--sh-1);
  transition:transform .24s ease,box-shadow .24s ease,border-color .24s ease;
  display:flex;flex-direction:column;
}
.card:hover{transform:translateY(-4px);box-shadow:var(--sh-2);border-color:rgba(255,107,44,.24);}
.card-icon{
  width:46px;height:46px;border-radius:16px;background:var(--grad-soft);
  display:flex;align-items:center;justify-content:center;color:var(--brand-press);font-size:18px;
  border:1px solid rgba(255,107,44,.18);
}
.card h3{margin-top:16px;font-size:19px;}
.card p{margin-top:10px;color:var(--ink-2);font-size:15px;line-height:1.85;}
.card-link{
  margin-top:18px;display:inline-flex;align-items:center;gap:8px;
  font-size:14px;font-weight:600;color:var(--brand-press);
}
.card-link i{transition:transform .2s ease;}
.card:hover .card-link i{transform:translateX(4px);}

/* ============ faq ============ */
.faq{max-width:880px;margin:40px auto 0;}
.faq details{
  border:1px solid var(--line);border-radius:16px;background:#fff;margin-bottom:12px;
  box-shadow:var(--sh-1);overflow:hidden;transition:border-color .2s ease,box-shadow .2s ease;
}
.faq details[open]{border-color:rgba(255,107,44,.28);box-shadow:var(--sh-2);}
.faq summary{
  list-style:none;cursor:pointer;padding:18px 22px;
  font-size:17px;font-weight:600;display:flex;align-items:center;justify-content:space-between;gap:16px;
}
.faq summary::-webkit-details-marker{display:none;}
.faq summary::after{
  content:"+";width:26px;height:26px;border-radius:999px;flex:0 0 auto;
  display:flex;align-items:center;justify-content:center;
  background:var(--brand-soft);color:var(--brand-press);font-weight:700;font-size:16px;
  transition:transform .24s ease,background .24s ease;
}
.faq details[open] summary::after{content:"−";background:var(--grad);color:#fff;transform:rotate(180deg);}
.faq .faq-body{padding:0 22px 20px;color:var(--ink-2);font-size:15px;line-height:1.9;border-top:1px solid var(--line);margin-top:0;padding-top:16px;}

/* ============ related ============ */
.related-list{display:grid;gap:16px;margin-top:38px;}
@media (min-width:768px){.related-list{grid-template-columns:repeat(2,1fr);}}
.related-item{
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:18px 22px;border-radius:18px;background:#fff;border:1px solid var(--line);
  box-shadow:var(--sh-1);transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.related-item:hover{transform:translateY(-3px);box-shadow:var(--sh-2);border-color:rgba(255,107,44,.24);}
.related-item strong{font-size:16px;font-weight:600;display:block;}
.related-item small{display:block;margin-top:4px;color:var(--ink-3);font-size:13px;}
.related-item i{color:var(--brand);transition:transform .2s ease;}
.related-item:hover i{transform:translateX(4px);}

/* ============ cta ============ */
.cta-band{
  position:relative;border-radius:var(--r-lg);overflow:hidden;
  background:var(--dark-2);color:#fff;padding:44px 28px;
  border:1px solid rgba(255,255,255,.08);
}
.cta-band::before{
  content:"";position:absolute;inset:0;
  background:
    radial-gradient(520px 260px at 8% 0%,rgba(255,107,44,.32),transparent 70%),
    radial-gradient(480px 260px at 92% 100%,rgba(18,199,184,.28),transparent 72%);
}
.cta-band > *{position:relative;z-index:2;}
.cta-band h2{font-size:26px;}
@media (min-width:768px){.cta-band h2{font-size:30px;}}
.cta-band p{margin-top:14px;color:rgba(255,255,255,.74);max-width:62ch;font-size:16px;line-height:1.85;}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:28px;}
.cta-meta{display:flex;flex-wrap:wrap;gap:20px;margin-top:28px;font-size:13px;color:rgba(255,255,255,.6);}
.cta-meta span{display:inline-flex;align-items:center;gap:8px;}
.cta-meta i{color:var(--lime);}

/* ============ footer ============ */
.site-footer{background:var(--dark);color:rgba(255,255,255,.72);padding:64px 0 28px;margin-top:0;}
.footer-grid{display:grid;gap:36px;grid-template-columns:1fr;}
@media (min-width:768px){.footer-grid{grid-template-columns:1.6fr 1fr 1fr;}}
@media (min-width:1024px){.footer-grid{grid-template-columns:2fr 1fr 1fr 1fr;gap:44px;}}
.footer-brand .logo-text{color:#fff;}
.footer-brand .logo-text b{color:rgba(255,255,255,.6);}
.footer-brand p{margin-top:16px;font-size:14px;line-height:1.85;max-width:44ch;}
.footer-col h4{font-size:15px;color:#fff;margin-bottom:16px;}
.footer-col li + li{margin-top:10px;}
.footer-col a{font-size:14px;color:rgba(255,255,255,.68);transition:color .2s ease;}
.footer-col a:hover{color:var(--cyan);}
.footer-bottom{
  margin-top:44px;padding-top:22px;border-top:1px solid rgba(255,255,255,.1);
  display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;
  font-size:13px;color:rgba(255,255,255,.5);
}

/* ============ mobile ============ */
@media (max-width:767px){
  .header-note{display:none;}
  .compare-head,
  .compare-row{grid-template-columns:1fr;}
  .compare-head div:last-child{background:rgba(255,107,44,.14);}
  .compare-row .c-after{border-left:none;border-top:2px solid transparent;border-image:linear-gradient(90deg,#FF6B2C,#7A5CFF) 1;}
  .hero-badges{gap:10px;}
  .badge{min-width:calc(50% - 5px);padding:12px 16px;}
  .badge b{font-size:22px;}
  .cta-band{padding:34px 20px;}
  .hero-cta .btn{width:100%;}
}