/* roulang page: index */
:root{
  --bg:#0A0C0E;
  --bg-2:#12151A;
  --bg-3:#171B21;
  --light:#F5F6F3;
  --white:#FFFFFF;
  --brand:#16E0B8;
  --brand-hover:#3BF0CC;
  --brand-dark:#0FB894;
  --brand-ink:#06231D;
  --violet:#7C6CFF;
  --text:#F2F5F4;
  --text-muted:#A8B0AD;
  --text-dark:#111315;
  --text-dark-muted:#5C6662;
  --line:rgba(255,255,255,.10);
  --line-strong:rgba(255,255,255,.18);
  --line-light:rgba(17,19,21,.08);
  --radius:20px;
  --radius-sm:12px;
  --shadow:0 20px 60px rgba(0,0,0,.45);
  --shadow-light:0 10px 40px rgba(0,0,0,.06);
  --ease:cubic-bezier(.22,1,.36,1);
  --bs-body-bg:#0A0C0E;
  --bs-body-color:#F2F5F4;
  --bs-primary:#16E0B8;
  --bs-border-radius:20px;
  --bs-border-color:rgba(255,255,255,.10);
  --bs-link-color:#16E0B8;
  --bs-link-hover-color:#3BF0CC;
  --bs-font-sans-serif:"Noto Sans SC","PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:var(--bs-font-sans-serif);
  font-size:1rem;
  line-height:1.8;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;display:block;border:0}
a{color:inherit;text-decoration:none;transition:color .25s var(--ease)}
a:hover{color:var(--brand-hover)}
h1,h2,h3,h4{margin:0;font-weight:800;color:inherit;letter-spacing:-.01em}
p{margin:0}
ul{margin:0;padding:0;list-style:none}
button{font-family:inherit;cursor:pointer}
:focus-visible{outline:2px solid var(--brand);outline-offset:3px;border-radius:6px}
::selection{background:var(--brand);color:var(--brand-ink)}

.container{width:100%;max-width:1280px;margin:0 auto;padding:0 32px}
.section{padding:120px 0;position:relative}
.section-light{background:var(--light);color:var(--text-dark);--text-muted:var(--text-dark-muted);--line:var(--line-light);--line-strong:rgba(17,19,21,.16);--bg-2:#FFFFFF;--bg-3:#F0F1EC}
.section-tight{padding:88px 0}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:.8125rem;font-weight:700;letter-spacing:.14em;text-transform:uppercase;
  color:var(--brand);margin-bottom:18px;
}
.eyebrow::before{content:"";width:26px;height:2px;background:var(--brand);display:block}
.section-title{font-size:clamp(1.8rem,3.5vw,2.8rem);line-height:1.15;font-weight:800;letter-spacing:-.02em}
.section-lead{margin-top:18px;color:var(--text-muted);font-size:1.0625rem;max-width:660px}
.section-head{margin-bottom:56px}
.section-head.center{text-align:center;margin-left:auto;margin-right:auto}
.section-head.center .section-lead{margin-left:auto;margin-right:auto}
.section-head.center .eyebrow{justify-content:center}

/* ============ header / nav ============ */
.site-header{
  position:fixed;inset:0 0 auto 0;z-index:1040;
  background:transparent;
  border-bottom:1px solid transparent;
  transition:background .35s var(--ease),border-color .35s var(--ease),box-shadow .35s var(--ease),padding .35s var(--ease);
  padding:18px 0;
}
.site-header.scrolled{
  background:rgba(10,12,14,.96);
  border-bottom:1px solid var(--line);
  box-shadow:0 12px 40px rgba(0,0,0,.42);
  padding:10px 0;
}
.nav-wrap{
  display:grid;grid-template-columns:1fr auto 1fr;align-items:center;gap:24px;
}
.nav-left{display:flex;align-items:center;gap:30px;justify-self:start}
.nav-right{display:flex;align-items:center;gap:22px;justify-self:end}
.nav-link{
  position:relative;font-size:.9375rem;font-weight:600;color:var(--text-muted);
  padding:6px 0;white-space:nowrap;
}
.nav-link::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:2px;background:var(--brand);
  transform:scaleX(0);transform-origin:left;transition:transform .35s var(--ease);
}
.nav-link:hover{color:var(--text)}
.nav-link:hover::after,.nav-link.active::after{transform:scaleX(1)}
.nav-link.active{color:var(--text)}
.brand{
  display:flex;align-items:center;gap:10px;justify-self:center;
  font-weight:800;letter-spacing:-.02em;line-height:1.15;text-align:center;
}
.brand-mark{
  width:38px;height:38px;flex:0 0 38px;border-radius:12px;
  display:grid;place-items:center;
  background:linear-gradient(135deg,var(--brand),var(--violet));
  color:var(--brand-ink);font-size:.875rem;font-weight:900;letter-spacing:0;
}
.brand-text{font-size:.9375rem;color:var(--text);max-width:190px}
.brand-short{display:none;font-size:.9375rem;color:var(--text)}
.nav-toggle{
  display:none;width:44px;height:44px;border-radius:12px;border:1px solid var(--line);
  background:rgba(255,255,255,.04);color:var(--text);align-items:center;justify-content:center;
}
.nav-toggle span{display:block;width:18px;height:2px;background:currentColor;position:relative}
.nav-toggle span::before,.nav-toggle span::after{
  content:"";position:absolute;left:0;width:18px;height:2px;background:currentColor;
}
.nav-toggle span::before{top:-6px}
.nav-toggle span::after{top:6px}
.mobile-menu{border-top:1px solid var(--line);margin-top:14px;background:rgba(10,12,14,.98)}
.mobile-menu-inner{padding:18px 0 26px;display:grid;gap:4px}
.mobile-menu a{
  display:block;padding:14px 4px;font-weight:600;color:var(--text-muted);
  border-bottom:1px solid var(--line);
}
.mobile-menu a:hover,.mobile-menu a.active{color:var(--brand)}
.mobile-menu .btn{margin-top:18px;justify-content:center}

/* ============ buttons ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  border-radius:999px;font-weight:700;font-size:.9375rem;
  padding:14px 30px;border:1px solid transparent;
  transition:transform .25s var(--ease),background .25s var(--ease),color .25s var(--ease),box-shadow .25s var(--ease),border-color .25s var(--ease);
  white-space:nowrap;text-decoration:none;
}
.btn-brand{background:var(--brand);color:var(--brand-ink);box-shadow:0 10px 30px rgba(22,224,184,.22)}
.btn-brand:hover{background:var(--brand-hover);color:var(--brand-ink);transform:translateY(-2px);box-shadow:0 16px 40px rgba(22,224,184,.32)}
.btn-brand:active{transform:translateY(1px)}
.btn-ghost{background:transparent;color:var(--text);border-color:var(--line-strong)}
.btn-ghost:hover{border-color:var(--brand);color:var(--brand);transform:translateY(-2px)}
.btn-ghost:active{transform:translateY(1px)}
.btn-sm{padding:11px 22px;font-size:.875rem}
.btn-block{width:100%}
.section-light .btn-ghost{color:var(--text-dark);border-color:var(--line-strong)}
.section-light .btn-ghost:hover{color:var(--brand-dark);border-color:var(--brand-dark)}

/* ============ hero ============ */
.hero{
  position:relative;min-height:88vh;display:flex;align-items:center;
  padding:190px 0 90px;overflow:hidden;
}
.hero-bg{
  position:absolute;inset:0;
  background-image:linear-gradient(180deg,rgba(10,12,14,.86) 0%,rgba(10,12,14,.72) 45%,rgba(10,12,14,.96) 100%),url('/assets/images/backpic/back-1.webp');
  background-size:cover;background-position:center;
}
.hero-bg::after{
  content:"";position:absolute;inset:0;
  background:radial-gradient(700px 420px at 78% 18%,rgba(22,224,184,.20),transparent 70%),
             radial-gradient(560px 400px at 8% 82%,rgba(124,108,255,.16),transparent 72%);
}
.hero .container{position:relative;z-index:2}
.hero-inner{max-width:900px}
.hero h1{
  font-size:clamp(2.5rem,5vw,4.5rem);line-height:1.05;font-weight:900;letter-spacing:-.03em;
  margin:20px 0 24px;
}
.hero h1 em{font-style:normal;color:var(--brand)}
.hero-sub{font-size:1.125rem;color:var(--text-muted);max-width:660px;line-height:1.8}
.hero-actions{display:flex;flex-wrap:wrap;gap:16px;margin-top:38px}
.trust-bar{
  margin-top:64px;display:grid;grid-template-columns:1.4fr 1fr 1.2fr 1fr;gap:20px;
  border-top:1px solid var(--line);padding-top:30px;
}
.trust-item strong{display:block;font-size:1.75rem;font-weight:900;color:var(--brand);letter-spacing:-.02em}
.trust-item span{font-size:.875rem;color:var(--text-muted)}
.hero-tag{
  display:inline-flex;align-items:center;gap:10px;padding:8px 18px;border-radius:999px;
  background:rgba(22,224,184,.10);border:1px solid rgba(22,224,184,.32);
  color:var(--brand);font-size:.8125rem;font-weight:700;letter-spacing:.04em;
}

/* ============ cards ============ */
.card-elev{
  background:var(--bg-2);border:1px solid var(--line);border-radius:var(--radius);
  overflow:hidden;height:100%;
  transition:transform .35s var(--ease),border-color .35s var(--ease),box-shadow .35s var(--ease);
}
.card-elev:hover{transform:translateY(-4px);border-color:rgba(22,224,184,.55);box-shadow:var(--shadow)}
.section-light .card-elev{background:#fff;box-shadow:var(--shadow-light)}
.section-light .card-elev:hover{box-shadow:0 18px 50px rgba(0,0,0,.10);border-color:rgba(15,184,148,.45)}
.card-body{padding:26px 26px 28px}
.card-title{font-size:1.1875rem;font-weight:700;line-height:1.35;margin-bottom:10px}
.card-text{color:var(--text-muted);font-size:.9375rem}
.card-cover{overflow:hidden;aspect-ratio:16/10;background:#0d1013}
.card-cover img{width:100%;height:100%;object-fit:cover;transition:transform .5s var(--ease)}
.card-elev:hover .card-cover img{transform:scale(1.03)}

.pain-list{display:grid;grid-template-columns:1.15fr 1fr;gap:26px}
.pain-item{
  border:1px solid var(--line);border-radius:var(--radius);padding:34px 32px;
  background:var(--bg-2);display:flex;gap:22px;align-items:flex-start;
  transition:border-color .35s var(--ease),transform .35s var(--ease);
}
.pain-item:hover{border-color:rgba(22,224,184,.5);transform:translateY(-3px)}
.pain-item.offset{margin-top:34px}
.pain-num{
  flex:0 0 46px;width:46px;height:46px;border-radius:14px;display:grid;place-items:center;
  background:rgba(124,108,255,.14);color:var(--violet);font-weight:900;font-size:.9375rem;
}
.pain-item h3{font-size:1.125rem;margin-bottom:8px}
.pain-item p{color:var(--text-muted);font-size:.9375rem}

/* ============ solution ============ */
.solution-grid{display:grid;grid-template-columns:1.05fr 1fr;gap:70px;align-items:center}
.solution-figure{position:relative;border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow-light)}
.solution-figure img{width:100%;aspect-ratio:4/3.1;object-fit:cover}
.solution-figure .fig-badge{
  position:absolute;left:22px;bottom:22px;background:var(--white);border-radius:14px;
  padding:14px 18px;box-shadow:0 12px 30px rgba(0,0,0,.14);
}
.solution-figure .fig-badge strong{display:block;font-size:1.125rem;color:var(--text-dark)}
.solution-figure .fig-badge span{font-size:.8125rem;color:var(--text-dark-muted)}
.step-list{display:grid;gap:26px;margin-top:34px}
.step{
  display:grid;grid-template-columns:64px 1fr;gap:20px;align-items:flex-start;
  padding-bottom:26px;border-bottom:1px solid var(--line-light);
}
.step:last-child{border-bottom:0;padding-bottom:0}
.step-no{
  font-size:1.5rem;font-weight:900;color:var(--brand-dark);letter-spacing:-.03em;line-height:1.2;
}
.step h3{font-size:1.125rem;margin-bottom:6px}
.step p{color:var(--text-dark-muted);font-size:.9375rem}

/* ============ results ============ */
.result-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr;gap:26px;margin-top:8px}
.result-card{
  border:1px solid var(--line);border-radius:var(--radius);padding:32px 30px;background:var(--bg-2);
  display:flex;flex-direction:column;justify-content:space-between;gap:20px;
  transition:border-color .35s var(--ease),transform .35s var(--ease);
}
.result-card:hover{border-color:rgba(22,224,184,.5);transform:translateY(-3px)}
.result-card.wide{background:linear-gradient(135deg,rgba(22,224,184,.10),rgba(124,108,255,.10));border-color:rgba(22,224,184,.32)}
.result-card h3{font-size:1.125rem;margin-bottom:10px}
.result-card p{color:var(--text-muted);font-size:.9375rem}
.result-num{font-size:2.5rem;font-weight:900;color:var(--brand);letter-spacing:-.03em;line-height:1}

/* ============ entry cards ============ */
.entry-grid{display:grid;grid-template-columns:1fr 1fr;gap:28px}
.entry-card{
  position:relative;border-radius:var(--radius);overflow:hidden;border:1px solid var(--line);
  background:var(--bg-2);display:flex;flex-direction:column;
  transition:transform .35s var(--ease),border-color .35s var(--ease);
}
.entry-card:hover{transform:translateY(-4px);border-color:rgba(22,224,184,.55)}
.entry-card .card-cover{aspect-ratio:16/8}
.entry-card .tag-row{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:14px}
.entry-card .go{
  display:inline-flex;align-items:center;gap:8px;font-weight:700;color:var(--brand);font-size:.9375rem;margin-top:18px;
}
.entry-card .go::after{content:"→";transition:transform .3s var(--ease)}
.entry-card:hover .go::after{transform:translateX(4px)}

/* ============ badges ============ */
.badge-soft{
  display:inline-flex;align-items:center;padding:6px 14px;border-radius:999px;
  background:rgba(22,224,184,.12);color:var(--brand);font-size:.75rem;font-weight:700;letter-spacing:.03em;
  border:1px solid rgba(22,224,184,.24);
}
.section-light .badge-soft{color:var(--brand-dark);background:rgba(15,184,148,.10);border-color:rgba(15,184,148,.24)}
.badge-violet{
  display:inline-flex;align-items:center;padding:6px 14px;border-radius:999px;
  background:rgba(124,108,255,.14);color:#A99CFF;font-size:.75rem;font-weight:700;border:1px solid rgba(124,108,255,.28);
}
.section-light .badge-violet{color:#5A4BE0;background:rgba(124,108,255,.10)}

/* ============ testimonials ============ */
.quote-grid{display:grid;grid-template-columns:1fr 1fr;gap:28px}
.quote-card{
  border:1px solid var(--line);border-radius:var(--radius);padding:34px 32px;background:var(--bg-2);
  transition:border-color .35s var(--ease),transform .35s var(--ease);
}
.quote-card:hover{border-color:rgba(22,224,184,.45);transform:translateY(-3px)}
.quote-card.lift{margin-top:36px}
.quote-mark{font-size:2.5rem;color:var(--brand);line-height:1;font-weight:900;margin-bottom:14px}
.quote-card p{color:var(--text-muted);font-size:1rem}
.quote-person{display:flex;align-items:center;gap:14px;margin-top:24px;padding-top:20px;border-top:1px solid var(--line)}
.avatar{
  width:44px;height:44px;border-radius:12px;display:grid;place-items:center;font-weight:800;
  background:linear-gradient(135deg,rgba(22,224,184,.22),rgba(124,108,255,.22));color:var(--brand);font-size:.875rem;
}
.quote-person strong{display:block;font-size:.9375rem}
.quote-person span{font-size:.8125rem;color:var(--text-muted)}

/* ============ cms posts ============ */
.post-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:28px}
.post-card{
  border:1px solid var(--line);border-radius:var(--radius);background:var(--bg-2);overflow:hidden;
  display:flex;flex-direction:column;
  transition:transform .35s var(--ease),border-color .35s var(--ease);
}
.post-card:hover{transform:translateY(-4px);border-color:rgba(22,224,184,.55)}
.post-grid > .post-card:first-child{grid-column:span 2}
.post-cover{display:block;overflow:hidden;aspect-ratio:16/9;background:#0d1013}
.post-cover img{width:100%;height:100%;object-fit:cover;transition:transform .5s var(--ease)}
.post-card:hover .post-cover img{transform:scale(1.03)}
.post-body{padding:24px 26px 28px;display:flex;flex-direction:column;flex:1}
.post-meta{display:flex;align-items:center;gap:12px;margin-bottom:14px;flex-wrap:wrap}
.post-meta time{font-size:.8125rem;color:var(--text-muted)}
.post-title{font-size:1.125rem;line-height:1.4;margin-bottom:10px}
.post-title a{background-image:linear-gradient(var(--brand),var(--brand));background-size:0% 2px;background-repeat:no-repeat;background-position:0 100%;transition:background-size .35s var(--ease)}
.post-title a:hover{background-size:100% 2px;color:var(--text)}
.post-summary{color:var(--text-muted);font-size:.9375rem;display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden}
.post-more{margin-top:auto;padding-top:18px;font-size:.875rem;font-weight:700;color:var(--brand)}
.empty-state{
  border:1px dashed var(--line-strong);border-radius:var(--radius);padding:56px 32px;text-align:center;
  background:rgba(255,255,255,.02);
}
.empty-state .ico{
  width:56px;height:56px;border-radius:16px;margin:0 auto 18px;display:grid;place-items:center;
  background:rgba(22,224,184,.10);color:var(--brand);font-size:1.25rem;font-weight:900;
}
.empty-state p{color:var(--text-muted)}
.empty-state .btn{margin-top:22px}

/* ============ cta ============ */
.cta-band{
  background:linear-gradient(120deg,rgba(22,224,184,.95),rgba(124,108,255,.85));
  border-radius:28px;padding:64px 56px;color:#08131A;position:relative;overflow:hidden;
}
.cta-band::after{
  content:"";position:absolute;right:-80px;top:-80px;width:320px;height:320px;border-radius:50%;
  background:rgba(255,255,255,.18);
}
.cta-band h2{font-size:clamp(1.7rem,3vw,2.4rem);color:#08131A;position:relative}
.cta-band p{margin-top:16px;max-width:620px;color:rgba(8,19,26,.78);position:relative}
.cta-band .actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:32px;position:relative}
.cta-band .btn-brand{background:#0A0C0E;color:var(--text);box-shadow:0 12px 30px rgba(0,0,0,.24)}
.cta-band .btn-brand:hover{background:#12151A;color:var(--brand);transform:translateY(-2px)}
.cta-band .btn-ghost{color:#08131A;border-color:rgba(8,19,26,.35)}
.cta-band .btn-ghost:hover{color:#08131A;border-color:#08131A}

/* ============ faq ============ */
.faq-wrap{max-width:900px;margin:0 auto}
.accordion-item{
  background:transparent;border:1px solid var(--line);border-radius:16px !important;
  margin-bottom:14px;overflow:hidden;
}
.accordion-item:has(.accordion-button:not(.collapsed)){border-color:rgba(15,184,148,.55);background:rgba(15,184,148,.04)}
.accordion-button{
  background:transparent;color:var(--text-dark);font-weight:700;font-size:1.0625rem;
  padding:24px 56px 24px 26px;box-shadow:none !important;border:0;
}
.accordion-button::after{
  background-image:none;content:"+";font-size:1.5rem;font-weight:400;color:var(--brand-dark);
  width:auto;height:auto;transform:none;display:grid;place-items:center;line-height:1;
}
.accordion-button:not(.collapsed){color:var(--brand-dark);background:transparent}
.accordion-button:not(.collapsed)::after{content:"−"}
.accordion-button:focus-visible{outline:2px solid var(--brand-dark);outline-offset:-2px}
.accordion-body{padding:0 26px 26px;color:var(--text-dark-muted);font-size:.9375rem}

/* ============ footer ============ */
.site-footer{background:#07090B;border-top:1px solid var(--line);padding:80px 0 0}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:44px;padding-bottom:60px}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:20px}
.footer-brand .brand-mark{width:36px;height:36px;flex:0 0 36px;font-size:.8125rem}
.footer-brand strong{font-size:1rem;letter-spacing:-.01em}
.footer-text{color:var(--text-muted);font-size:.9375rem;max-width:340px}
.footer-col h3{font-size:.9375rem;font-weight:700;margin-bottom:18px;letter-spacing:.02em}
.footer-col ul{display:grid;gap:12px}
.footer-col a{color:var(--text-muted);font-size:.9375rem}
.footer-col a:hover{color:var(--brand)}
.qr-box{
  width:104px;height:104px;border-radius:16px;border:1px dashed var(--line-strong);
  display:grid;place-items:center;color:var(--text-muted);font-size:.75rem;margin-bottom:16px;
  background:rgba(255,255,255,.02);text-align:center;line-height:1.4;
}
.footer-bottom{
  border-top:1px solid var(--line);padding:26px 0;display:flex;flex-wrap:wrap;gap:12px;
  justify-content:space-between;color:var(--text-muted);font-size:.8125rem;
}
.footer-bottom a{color:var(--text-muted)}
.footer-bottom a:hover{color:var(--brand)}

/* ============ reveal ============ */
.reveal{opacity:0;transform:translateY(12px);transition:opacity .6s var(--ease),transform .6s var(--ease)}
.reveal.is-visible{opacity:1;transform:none}

/* ============ responsive ============ */
@media (max-width:1200px){
  .container{padding:0 28px}
  .result-grid{grid-template-columns:1fr 1fr}
  .result-card.wide{grid-column:span 2}
  .footer-grid{grid-template-columns:1.4fr 1fr 1fr;gap:36px}
}
@media (max-width:992px){
  .container{padding:0 24px}
  .section{padding:84px 0}
  .section-tight{padding:64px 0}
  .nav-left,.nav-right{display:none}
  .nav-toggle{display:flex;justify-self:end}
  .nav-wrap{grid-template-columns:auto 1fr auto}
  .brand{justify-self:center}
  .brand-text{display:none}
  .brand-short{display:block}
  .hero{min-height:auto;padding:150px 0 72px}
  .trust-bar{grid-template-columns:1fr 1fr;gap:26px 20px}
  .pain-list{grid-template-columns:1fr}
  .pain-item.offset{margin-top:0}
  .solution-grid{grid-template-columns:1fr;gap:44px}
  .entry-grid{grid-template-columns:1fr}
  .quote-grid{grid-template-columns:1fr}
  .quote-card.lift{margin-top:0}
  .post-grid{grid-template-columns:repeat(2,1fr)}
  .post-grid > .post-card:first-child{grid-column:span 2}
  .cta-band{padding:48px 32px}
}
@media (max-width:768px){
  .section{padding:68px 0}
  .section-head{margin-bottom:38px}
  .hero{padding:132px 0 60px}
  .hero h1{margin:16px 0 18px}
  .hero-actions{gap:12px}
  .hero-actions .btn{width:100%}
  .result-grid{grid-template-columns:1fr}
  .result-card.wide{grid-column:auto}
  .post-grid{grid-template-columns:1fr}
  .post-grid > .post-card:first-child{grid-column:auto}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
}
@media (max-width:576px){
  .container{padding:0 18px}
  .brand-short{font-size:.875rem}
  .trust-bar{grid-template-columns:1fr 1fr;gap:22px 16px}
  .trust-item strong{font-size:1.5rem}
  .card-body,.post-body{padding:20px 20px 24px}
  .pain-item{padding:26px 22px;gap:16px}
  .cta-band{padding:38px 22px;border-radius:22px}
  .footer-grid{grid-template-columns:1fr}
  .footer-bottom{flex-direction:column}
  .step{grid-template-columns:48px 1fr;gap:14px}
}
@media (prefers-reduced-motion:reduce){
  *{animation:none !important;transition:none !important}
  html{scroll-behavior:auto}
  .reveal{opacity:1;transform:none}
}

/* roulang page: article */
:root{
  --bg:#0A0C0E;
  --bg-deep:#08090B;
  --surface:#12151A;
  --surface-2:#171B21;
  --line:rgba(255,255,255,.10);
  --line-strong:rgba(255,255,255,.18);
  --text:#F2F5F4;
  --text-soft:#DDE3E1;
  --muted:#A8B0AD;
  --primary:#16E0B8;
  --primary-hover:#3BF0CC;
  --primary-dim:#0FB894;
  --violet:#7C6CFF;
  --radius:20px;
  --radius-sm:12px;
  --shadow:0 20px 60px rgba(0,0,0,.45);
  --shadow-soft:0 10px 40px rgba(0,0,0,.35);
  --ease:cubic-bezier(.22,1,.36,1);
  --bs-primary:#16E0B8;
  --bs-body-bg:#0A0C0E;
  --bs-body-color:#F2F5F4;
  --bs-border-color:rgba(255,255,255,.10);
  --bs-border-radius:20px;
  --bs-link-color:#16E0B8;
  --bs-link-hover-color:#3BF0CC;
  --bs-font-sans-serif:"Noto Sans SC","Helvetica Neue",Arial,sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:"Noto Sans SC","Helvetica Neue",Arial,sans-serif;
  font-size:16px;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}
img{max-width:100%;display:block;background:var(--surface-2)}
a{color:inherit;text-decoration:none}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4{margin:0;font-weight:800;letter-spacing:-.02em}
p{margin:0}
button,input,textarea,select{font-family:inherit}
a:focus-visible,button:focus-visible,input:focus-visible,textarea:focus-visible{outline:2px solid var(--primary);outline-offset:3px;border-radius:6px}
::selection{background:rgba(22,224,184,.28);color:#fff}
.container{max-width:1240px;padding-left:24px;padding-right:24px;margin:0 auto}
.kicker{
  display:inline-flex;align-items:center;gap:8px;
  font-family:"Space Grotesk",sans-serif;
  font-size:.75rem;font-weight:700;letter-spacing:.18em;text-transform:uppercase;
  color:var(--primary);
}
.kicker::before{content:"";width:22px;height:2px;background:var(--primary);border-radius:2px}

/* ============ 导航 ============ */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:1030;
  background:transparent;border-bottom:1px solid transparent;
  transition:background .35s var(--ease),border-color .35s var(--ease),box-shadow .35s var(--ease);
}
.site-header.is-scrolled{
  background:rgba(10,12,14,.97);
  border-bottom-color:var(--line);
  box-shadow:0 12px 40px rgba(0,0,0,.5);
}
.nav-wrap{
  display:grid;grid-template-columns:1fr auto 1fr;align-items:center;
  height:86px;gap:24px;
}
.nav-left,.nav-right{display:flex;align-items:center;gap:6px}
.nav-left{justify-content:flex-start}
.nav-right{justify-content:flex-end}
.nav-link{
  font-size:.94rem;color:var(--muted);padding:10px 15px;border-radius:999px;
  transition:color .25s var(--ease),background .25s var(--ease);white-space:nowrap;
}
.nav-link:hover{color:var(--text);background:rgba(255,255,255,.06)}
.nav-link.active{color:var(--primary);background:rgba(22,224,184,.10)}
.brand{display:flex;align-items:center;gap:12px;justify-self:center;min-width:0}
.brand-mark{
  width:44px;height:44px;flex:0 0 44px;border-radius:13px;
  background:linear-gradient(135deg,var(--primary),var(--violet));
  color:#05130F;display:grid;place-items:center;
  font-family:"Space Grotesk",sans-serif;font-weight:700;font-size:1rem;letter-spacing:.02em;
}
.brand-text{font-weight:900;font-size:1.05rem;line-height:1.2;letter-spacing:-.01em;white-space:nowrap}
.brand-text small{
  display:block;font-size:.68rem;font-weight:500;color:var(--muted);
  letter-spacing:.16em;text-transform:uppercase;margin-top:2px;
}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  font-weight:600;font-size:.94rem;line-height:1;
  padding:.78rem 1.6rem;border-radius:999px;border:1px solid transparent;
  cursor:pointer;transition:transform .28s var(--ease),background .28s var(--ease),color .28s var(--ease),border-color .28s var(--ease),box-shadow .28s var(--ease);
}
.btn-primary{background:var(--primary);color:#06211B;border-color:var(--primary)}
.btn-primary:hover{background:var(--primary-hover);color:#06211B;transform:translateY(-2px);box-shadow:0 14px 30px rgba(22,224,184,.28)}
.btn-primary:active{transform:translateY(1px)}
.btn-ghost{background:transparent;color:var(--text);border-color:var(--line-strong)}
.btn-ghost:hover{border-color:var(--primary);color:var(--primary);transform:translateY(-2px)}
.btn-sm{padding:.6rem 1.15rem;font-size:.86rem}
.mobile-bar{display:none}
.menu-btn{
  width:44px;height:44px;border-radius:12px;border:1px solid var(--line);
  background:rgba(255,255,255,.04);display:grid;place-items:center;gap:4px;padding:0;cursor:pointer;
}
.menu-btn span{display:block;width:18px;height:2px;background:var(--text);border-radius:2px;transition:.25s var(--ease)}
.mobile-panel{
  position:fixed;top:70px;left:0;right:0;bottom:0;z-index:1029;
  background:rgba(8,9,11,.98);padding:24px 24px 60px;overflow-y:auto;
  opacity:0;visibility:hidden;transform:translateY(-10px);
  transition:opacity .3s var(--ease),transform .3s var(--ease),visibility .3s;
}
.mobile-panel.open{opacity:1;visibility:visible;transform:none}
.mobile-panel a{display:flex;align-items:center;justify-content:space-between;padding:18px 4px;border-bottom:1px solid var(--line);font-size:1.05rem;color:var(--text)}
.mobile-panel a.active{color:var(--primary)}
.mobile-panel .panel-cta{margin-top:22px;border-bottom:0}
.mobile-panel .panel-cta .btn{width:100%}

/* ============ 主体 ============ */
.page-main{padding-top:126px;padding-bottom:20px}
.crumbs{display:flex;flex-wrap:wrap;align-items:center;gap:10px;font-size:.86rem;color:var(--muted);margin-bottom:26px}
.crumbs a{color:var(--muted);transition:color .25s var(--ease)}
.crumbs a:hover{color:var(--primary)}
.crumbs .sep{opacity:.45}
.crumbs .current{color:var(--text-soft);max-width:520px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.article-head{max-width:900px}
.article-title{
  font-size:clamp(1.9rem,3.6vw,3rem);font-weight:900;line-height:1.16;
  letter-spacing:-.025em;margin:14px 0 20px;
}
.article-meta{display:flex;flex-wrap:wrap;gap:10px;align-items:center}
.chip{
  display:inline-flex;align-items:center;gap:7px;
  padding:7px 15px;border-radius:999px;border:1px solid var(--line);
  background:rgba(255,255,255,.04);font-size:.8125rem;color:var(--muted);line-height:1;
}
.chip i{font-size:.78rem}
.chip-primary{background:rgba(22,224,184,.12);border-color:rgba(22,224,184,.38);color:var(--primary)}
.article-cover{
  margin-top:34px;border-radius:var(--radius);overflow:hidden;
  border:1px solid var(--line);background:var(--surface-2);box-shadow:var(--shadow);
}
.article-cover img{width:100%;aspect-ratio:16/9;object-fit:cover}
.article-layout{
  display:grid;grid-template-columns:minmax(0,1fr) 320px;gap:56px;
  align-items:start;margin-top:52px;
}
.article-main{min-width:0;max-width:820px}

/* ============ 正文排版 ============ */
.article-body{font-size:1.0625rem;line-height:1.85;color:var(--text-soft)}
.article-body>*:first-child{margin-top:0}
.article-body p{margin:0 0 1.25em}
.article-body h2{
  font-size:clamp(1.4rem,2.2vw,1.75rem);font-weight:800;line-height:1.3;
  margin:2.2em 0 .8em;padding-left:16px;border-left:4px solid var(--primary);color:var(--text);
}
.article-body h3{font-size:1.2rem;font-weight:700;margin:1.8em 0 .6em;color:var(--text)}
.article-body h4{font-size:1.05rem;font-weight:700;margin:1.5em 0 .5em;color:var(--text)}
.article-body ul,.article-body ol{margin:0 0 1.3em;padding-left:1.35em}
.article-body ul{list-style:disc}
.article-body ol{list-style:decimal}
.article-body li{margin-bottom:.6em}
.article-body li::marker{color:var(--primary)}
.article-body blockquote{
  margin:1.6em 0;padding:18px 24px;border-left:3px solid var(--primary);
  background:rgba(22,224,184,.06);border-radius:0 14px 14px 0;color:#E7EDEB;
}
.article-body img{border-radius:16px;margin:1.6em 0;width:100%;height:auto}
.article-body figure{margin:1.6em 0}
.article-body figcaption{font-size:.85rem;color:var(--muted);text-align:center;margin-top:10px}
.article-body a{color:var(--primary);text-decoration:underline;text-underline-offset:3px}
.article-body a:hover{color:var(--primary-hover)}
.article-body strong{color:var(--text);font-weight:700}
.article-body hr{border:0;border-top:1px solid var(--line);margin:2.2em 0}
.article-body table{width:100%;border-collapse:collapse;margin:1.6em 0;font-size:.94rem}
.article-body th,.article-body td{border:1px solid var(--line);padding:12px 14px;text-align:left}
.article-body th{background:rgba(255,255,255,.05);color:var(--text)}
.article-body code{background:rgba(255,255,255,.08);padding:2px 6px;border-radius:6px;font-size:.9em}

/* ============ 侧栏 ============ */
.side{position:sticky;top:112px;display:flex;flex-direction:column;gap:20px}
.side-card{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);padding:26px 24px}
.side-title{
  font-family:"Space Grotesk",sans-serif;font-size:.72rem;font-weight:700;
  letter-spacing:.2em;text-transform:uppercase;color:var(--primary);margin-bottom:16px;
}
.side-list{display:flex;flex-direction:column;gap:12px}
.side-list a{font-size:.92rem;color:var(--muted);display:flex;align-items:center;gap:10px;transition:color .25s var(--ease),transform .25s var(--ease)}
.side-list a:hover{color:var(--primary);transform:translateX(3px)}
.side-list i{font-size:.7rem;color:var(--primary-dim)}
.side-card .btn{width:100%;margin-top:18px}
.side-text{font-size:.875rem;color:var(--muted);line-height:1.7}

/* ============ 模块 ============ */
.section{padding:84px 0 0}
.section-head{max-width:760px;margin-bottom:44px}
.section-title{font-size:clamp(1.6rem,3vw,2.4rem);font-weight:900;line-height:1.2;margin:14px 0 12px}
.section-desc{color:var(--muted);font-size:1rem}
.rec-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:26px}
.card-cover{
  display:block;background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);
  overflow:hidden;transition:transform .35s var(--ease),border-color .35s var(--ease),box-shadow .35s var(--ease);
}
.card-cover:hover{transform:translateY(-4px);border-color:rgba(22,224,184,.5);box-shadow:var(--shadow-soft)}
.card-cover .thumb{overflow:hidden;background:var(--surface-2)}
.card-cover .thumb img{width:100%;aspect-ratio:16/10;object-fit:cover;transition:transform .5s var(--ease)}
.card-cover:hover .thumb img{transform:scale(1.03)}
.card-cover .body{padding:22px 22px 24px}
.card-cover h3{font-size:1.08rem;font-weight:700;line-height:1.4;margin:12px 0 10px}
.card-cover:hover h3{color:var(--primary)}
.card-cover p{font-size:.9rem;color:var(--muted);line-height:1.7}
.card-meta{display:flex;flex-wrap:wrap;gap:10px;align-items:center;margin-top:16px;font-size:.8rem;color:var(--muted)}
.badge-soft{
  display:inline-flex;align-items:center;padding:5px 13px;border-radius:999px;
  background:rgba(124,108,255,.16);color:#B9B2FF;font-size:.75rem;line-height:1;font-weight:600;
}
.badge-soft.is-primary{background:rgba(22,224,184,.14);color:var(--primary)}

/* ============ FAQ ============ */
.faq-wrap{max-width:900px;margin:0 auto}
.faq .accordion-item{
  background:var(--surface);border:1px solid var(--line);border-radius:16px;
  margin-bottom:14px;overflow:hidden;
}
.faq .accordion-button{
  background:transparent;color:var(--text);font-weight:600;font-size:1.02rem;
  padding:20px 24px;box-shadow:none;border-radius:16px;
}
.faq .accordion-button:not(.collapsed){color:var(--primary);background:rgba(22,224,184,.07)}
.faq .accordion-button:focus{box-shadow:none;border-color:transparent}
.faq .accordion-button::after{
  content:"";background-image:none;width:12px;height:12px;flex:0 0 12px;
  border-right:2px solid currentColor;border-bottom:2px solid currentColor;
  transform:rotate(45deg);transition:transform .3s var(--ease);margin-left:auto;
}
.faq .accordion-button:not(.collapsed)::after{transform:rotate(-135deg)}
.faq .accordion-body{padding:0 24px 22px;color:var(--muted);font-size:.95rem;line-height:1.8}

/* ============ CTA ============ */
.cta-band{
  margin-top:88px;padding:60px 48px;text-align:center;border-radius:28px;
  border:1px solid rgba(22,224,184,.24);
  background:radial-gradient(120% 140% at 50% 0%,rgba(22,224,184,.16),rgba(124,108,255,.12) 55%,rgba(10,12,14,0) 100%),var(--surface);
  box-shadow:var(--shadow);
}
.cta-band h2{font-size:clamp(1.6rem,3vw,2.3rem);font-weight:900;line-height:1.22;margin-bottom:14px}
.cta-band p{color:var(--muted);max-width:660px;margin:0 auto}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;justify-content:center;margin-top:30px}

/* ============ 空态 ============ */
.empty-state{
  border:1px dashed var(--line-strong);border-radius:var(--radius);
  padding:64px 28px;text-align:center;background:var(--surface);
}
.empty-state i{font-size:2rem;color:var(--primary);margin-bottom:18px;display:block}
.empty-state h2{font-size:1.4rem;margin-bottom:12px}
.empty-state p{color:var(--muted);margin-bottom:24px}

/* ============ 页脚 ============ */
.site-footer{background:var(--bg-deep);border-top:1px solid var(--line);margin-top:104px;padding:76px 0 32px}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:44px}
.footer-brand{display:flex;align-items:center;gap:12px;margin-bottom:18px}
.footer-brand .brand-mark{width:40px;height:40px;flex:0 0 40px;border-radius:12px;font-size:.9rem}
.footer-brand strong{font-size:1.02rem;font-weight:900;letter-spacing:-.01em}
.footer-text{color:var(--muted);font-size:.9rem;line-height:1.8;max-width:340px}
.footer-col h3{font-size:.95rem;font-weight:700;color:var(--text);margin-bottom:18px}
.footer-col ul{display:flex;flex-direction:column;gap:11px}
.footer-col a{color:var(--muted);font-size:.9rem;transition:color .25s var(--ease)}
.footer-col a:hover{color:var(--primary)}
.qr-box{
  width:96px;height:96px;border:1px dashed var(--line-strong);border-radius:14px;
  display:grid;place-items:center;text-align:center;color:var(--muted);
  font-size:.75rem;line-height:1.5;margin-bottom:16px;background:rgba(255,255,255,.02);
}
.footer-bottom{
  margin-top:52px;padding-top:26px;border-top:1px solid var(--line);
  display:flex;flex-wrap:wrap;justify-content:space-between;gap:14px;
  color:var(--muted);font-size:.8125rem;
}

/* ============ 动效 ============ */
.reveal{opacity:0;transform:translateY(12px);transition:opacity .6s var(--ease),transform .6s var(--ease)}
.reveal.is-in{opacity:1;transform:none}
@media (prefers-reduced-motion:reduce){
  *{animation:none!important;transition:none!important;scroll-behavior:auto!important}
  .reveal{opacity:1;transform:none}
}

/* ============ 响应式 ============ */
@media (max-width:1199.98px){
  .article-layout{grid-template-columns:minmax(0,1fr) 288px;gap:40px}
  .footer-grid{gap:34px}
}
@media (max-width:991.98px){
  .nav-wrap{display:none}
  .mobile-bar{
    display:flex;align-items:center;justify-content:space-between;gap:14px;height:70px;
  }
  .brand-mobile{justify-self:auto}
  .brand-mobile .brand-text{font-size:.98rem}
  .page-main{padding-top:104px}
  .article-layout{grid-template-columns:1fr;gap:48px}
  .article-main{max-width:none}
  .side{position:static;top:auto}
  .section{padding-top:72px}
  .rec-grid{grid-template-columns:1fr 1fr}
  .footer-grid{grid-template-columns:1fr 1fr}
  .cta-band{margin-top:72px;padding:48px 32px}
}
@media (max-width:767.98px){
  .container{padding-left:18px;padding-right:18px}
  .article-title{font-size:clamp(1.6rem,7vw,2.1rem)}
  .rec-grid{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr;gap:34px}
  .cta-band{padding:38px 22px;border-radius:22px}
  .cta-actions .btn{width:100%}
  .crumbs .current{max-width:220px}
  .section{padding-top:64px}
  .site-footer{margin-top:76px;padding-top:56px}
}
@media (max-width:575.98px){
  .page-main{padding-top:96px}
  .chip{font-size:.76rem;padding:6px 12px}
  .side-card{padding:22px 18px}
  .article-cover{margin-top:26px}
}

/* roulang page: category1 */
:root{
  --bg:#0A0C0E;
  --bg-2:#12151A;
  --bg-3:#171B21;
  --light:#F5F6F3;
  --white:#FFFFFF;
  --line:rgba(255,255,255,.10);
  --line-strong:rgba(255,255,255,.18);
  --line-light:rgba(17,19,21,.08);
  --text:#F2F5F4;
  --text-dim:#A8B0AD;
  --ink:#111315;
  --ink-dim:#5C6662;
  --brand:#16E0B8;
  --brand-hover:#3BF0CC;
  --brand-dark:#0FB894;
  --violet:#7C6CFF;
  --r-card:20px;
  --r-btn:999px;
  --r-input:12px;
  --shadow-dark:0 20px 60px rgba(0,0,0,.45);
  --shadow-light:0 10px 40px rgba(0,0,0,.06);
  --shadow-brand:0 12px 34px rgba(22,224,184,.28);
  --nav-h:74px;
  --bs-primary:#16E0B8;
  --bs-body-bg:#0A0C0E;
  --bs-body-color:#F2F5F4;
  --bs-border-color:rgba(255,255,255,.10);
  --bs-link-color:#16E0B8;
  --bs-link-hover-color:#3BF0CC;
  --bs-border-radius:20px;
  --bs-font-sans-serif:"Noto Sans SC","PingFang SC","Microsoft YaHei",system-ui,-apple-system,sans-serif;
}

*,*::before,*::after{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:"Noto Sans SC","PingFang SC","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  font-size:1rem;
  line-height:1.8;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;display:block;border-style:none;}
a{color:var(--brand);text-decoration:none;transition:color .25s ease,opacity .25s ease;}
a:hover{color:var(--brand-hover);}
button{font-family:inherit;}
h1,h2,h3,h4{margin:0;font-weight:800;line-height:1.15;letter-spacing:-.02em;}
p{margin:0;}
ul{margin:0;padding:0;list-style:none;}
:focus-visible{outline:2px solid var(--brand);outline-offset:3px;border-radius:6px;}

.container{width:100%;max-width:1240px;margin:0 auto;padding-left:32px;padding-right:32px;}
.container-wide{max-width:1360px;}
.section{padding:120px 0;}
.section-sm{padding:88px 0;}
.section-light{background:var(--light);color:var(--ink);}
.section-light p{color:var(--ink-dim);}

.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-family:"Space Grotesk","Noto Sans SC",sans-serif;
  font-size:.8125rem;font-weight:700;letter-spacing:.14em;text-transform:uppercase;
  color:var(--brand);
}
.eyebrow::before{content:"";width:26px;height:1px;background:var(--brand);opacity:.7;}
.section-light .eyebrow{color:var(--brand-dark);}
.sec-head{max-width:760px;margin-bottom:56px;}
.sec-title{font-size:clamp(1.8rem,3.5vw,2.8rem);font-weight:800;margin-top:16px;}
.sec-sub{margin-top:18px;color:var(--text-dim);font-size:1.0625rem;}
.section-light .sec-sub{color:var(--ink-dim);}

/* ---------- buttons ---------- */
.btn-brand,.btn-ghost,.btn-ink{
  display:inline-flex;align-items:center;justify-content:center;gap:10px;
  padding:14px 30px;border-radius:var(--r-btn);
  font-size:.9375rem;font-weight:700;letter-spacing:.01em;
  border:1px solid transparent;cursor:pointer;
  transition:transform .25s cubic-bezier(.22,1,.36,1),background-color .25s ease,box-shadow .25s ease,color .25s ease,border-color .25s ease;
  white-space:nowrap;
}
.btn-brand{background:var(--brand);color:#07231D;box-shadow:0 8px 24px rgba(22,224,184,.22);}
.btn-brand:hover{background:var(--brand-hover);color:#07231D;transform:translateY(-2px);box-shadow:var(--shadow-brand);}
.btn-brand:active{transform:translateY(1px);}
.btn-ghost{background:transparent;color:var(--text);border-color:var(--line-strong);}
.btn-ghost:hover{border-color:var(--brand);color:var(--brand);transform:translateY(-2px);}
.btn-ghost:active{transform:translateY(1px);}
.btn-ink{background:var(--ink);color:#fff;}
.btn-ink:hover{background:#20262a;color:#fff;transform:translateY(-2px);box-shadow:0 14px 30px rgba(17,19,21,.22);}
.btn-sm{padding:11px 22px;font-size:.875rem;}

/* ---------- badge / tag ---------- */
.badge-line{
  display:inline-flex;align-items:center;gap:6px;
  padding:5px 14px;border-radius:var(--r-btn);
  font-size:.75rem;font-weight:700;letter-spacing:.04em;
  background:rgba(22,224,184,.10);color:var(--brand);
  border:1px solid rgba(22,224,184,.28);
}
.badge-line.violet{background:rgba(124,108,255,.12);color:#B9AEFF;border-color:rgba(124,108,255,.32);}
.section-light .badge-line{background:rgba(15,184,148,.10);color:#0B8F72;border-color:rgba(15,184,148,.28);}
.badge-line.solid{background:var(--brand);color:#07231D;border-color:transparent;}

/* ---------- header ---------- */
.site-header{
  position:fixed;inset:0 0 auto 0;z-index:1030;
  padding:10px 0;
  background:transparent;
  transition:background-color .35s ease,box-shadow .35s ease,border-color .35s ease,padding .35s ease;
  border-bottom:1px solid transparent;
}
.site-header.scrolled{
  background:#0A0C0E;
  border-bottom:1px solid var(--line);
  box-shadow:0 14px 40px rgba(0,0,0,.5);
  padding:6px 0;
}
.nav-shell{
  display:grid;grid-template-columns:1fr auto 1fr;align-items:center;gap:24px;min-height:var(--nav-h);
}
.nav-left,.nav-right{display:flex;align-items:center;gap:6px;}
.nav-right{justify-content:flex-end;gap:14px;}
.nav-link{
  position:relative;display:inline-block;
  padding:10px 16px;border-radius:var(--r-btn);
  font-size:.9375rem;font-weight:500;color:var(--text-dim);
  transition:color .25s ease,background-color .25s ease;
}
.nav-link::after{
  content:"";position:absolute;left:16px;right:16px;bottom:5px;height:1.5px;
  background:var(--brand);transform:scaleX(0);transform-origin:left;
  transition:transform .3s cubic-bezier(.22,1,.36,1);
}
.nav-link:hover{color:var(--text);background:rgba(255,255,255,.05);}
.nav-link:hover::after{transform:scaleX(1);}
.nav-link.active{color:var(--brand);}
.nav-link.active::after{transform:scaleX(1);}
.nav-cta{
  display:inline-flex;align-items:center;gap:8px;
  padding:11px 24px;border-radius:var(--r-btn);
  background:var(--brand);color:#07231D;font-size:.875rem;font-weight:700;
  transition:transform .25s cubic-bezier(.22,1,.36,1),background-color .25s ease,box-shadow .25s ease;
}
.nav-cta:hover{background:var(--brand-hover);color:#07231D;transform:translateY(-2px);box-shadow:var(--shadow-brand);}
.nav-cta:active{transform:translateY(1px);}
.brand{
  display:flex;align-items:center;gap:10px;
  color:var(--text);font-weight:800;letter-spacing:-.02em;line-height:1.1;
}
.brand:hover{color:var(--text);}
.brand-mark{
  width:40px;height:40px;flex:0 0 40px;border-radius:12px;
  display:grid;place-items:center;
  background:linear-gradient(140deg,var(--brand),var(--violet));
  color:#06120F;font-family:"Space Grotesk",sans-serif;font-weight:700;font-size:1rem;
}
.brand-text{display:flex;flex-direction:column;}
.brand-text strong{font-size:.9375rem;font-weight:800;}
.brand-text span{font-family:"Space Grotesk",sans-serif;font-size:.6875rem;letter-spacing:.18em;color:var(--text-dim);text-transform:uppercase;}
.nav-toggle{
  display:none;width:42px;height:42px;border-radius:12px;
  background:rgba(255,255,255,.06);border:1px solid var(--line);
  color:var(--text);font-size:1rem;
}
.mobile-menu{border-top:1px solid var(--line);margin-top:12px;padding-top:14px;}
.mobile-menu a{
  display:flex;align-items:center;justify-content:space-between;
  padding:14px 4px;border-bottom:1px solid var(--line);
  color:var(--text);font-weight:500;
}
.mobile-menu a.active{color:var(--brand);}
.mobile-menu a:last-child{border-bottom:none;}

/* ---------- page hero ---------- */
.page-hero{
  position:relative;overflow:hidden;
  padding:calc(var(--nav-h) + 96px) 0 88px;
  background:#08090B url("/assets/images/backpic/back-1.webp") center/cover no-repeat;
}
.page-hero::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(100deg,rgba(8,9,11,.96) 0%,rgba(8,9,11,.86) 46%,rgba(8,9,11,.60) 100%);
}
.page-hero .container{position:relative;z-index:2;}
.crumb{display:flex;flex-wrap:wrap;align-items:center;gap:10px;font-size:.8125rem;color:var(--text-dim);margin-bottom:26px;}
.crumb a{color:var(--text-dim);}
.crumb a:hover{color:var(--brand);}
.crumb .sep{opacity:.5;}
.crumb .current{color:var(--brand);}
.page-hero h1{
  font-size:clamp(2rem,4.4vw,3.35rem);font-weight:900;line-height:1.1;letter-spacing:-.03em;
  max-width:16em;
}
.page-hero h1 em{font-style:normal;color:var(--brand);}
.page-hero .lead{margin-top:22px;max-width:640px;color:var(--text-dim);font-size:1.0625rem;}
.hero-meta{display:flex;flex-wrap:wrap;gap:12px;margin-top:30px;}
.hero-stats{
  display:flex;flex-wrap:wrap;gap:40px;margin-top:52px;
  padding-top:30px;border-top:1px solid var(--line);
}
.hero-stats .item strong{
  display:block;font-family:"Space Grotesk",sans-serif;
  font-size:1.75rem;font-weight:700;color:var(--brand);line-height:1.1;
}
.hero-stats .item span{font-size:.8125rem;color:var(--text-dim);}

/* ---------- steps ---------- */
.step-list{display:flex;flex-direction:column;gap:26px;}
.step{
  display:grid;grid-template-columns:104px 1fr;gap:28px;align-items:start;
  padding:32px 34px;border-radius:var(--r-card);
  background:var(--bg-2);border:1px solid var(--line);
  transition:border-color .3s ease,transform .3s cubic-bezier(.22,1,.36,1),background-color .3s ease;
}
.step:hover{border-color:rgba(22,224,184,.45);transform:translateY(-2px);background:var(--bg-3);}
.step-num{
  font-family:"Space Grotesk",sans-serif;font-size:2.5rem;font-weight:700;
  color:transparent;-webkit-text-stroke:1.4px rgba(22,224,184,.75);line-height:1;
  letter-spacing:-.03em;
}
.step h3{font-size:1.25rem;font-weight:700;margin-bottom:12px;}
.step p{color:var(--text-dim);font-size:.9688rem;}
.step .mini-list{margin-top:16px;display:flex;flex-wrap:wrap;gap:10px;}
.step .mini-list span{
  font-size:.75rem;padding:5px 12px;border-radius:var(--r-btn);
  background:rgba(255,255,255,.05);border:1px solid var(--line);color:var(--text-dim);
}

/* ---------- staggered cards ---------- */
.stagger{display:grid;grid-template-columns:1fr 1fr;gap:32px;}
.stagger .col-b{padding-top:64px;}
.g-card{
  border-radius:var(--r-card);overflow:hidden;
  background:var(--bg-2);border:1px solid var(--line);
  transition:border-color .3s ease,transform .3s cubic-bezier(.22,1,.36,1),box-shadow .3s ease;
  margin-bottom:32px;
}
.g-card:last-child{margin-bottom:0;}
.g-card:hover{border-color:rgba(22,224,184,.5);transform:translateY(-3px);box-shadow:var(--shadow-dark);}
.g-card .thumb{position:relative;aspect-ratio:16/10;overflow:hidden;background:#0d1014;}
.g-card .thumb img{width:100%;height:100%;object-fit:cover;transition:transform .5s cubic-bezier(.22,1,.36,1);}
.g-card:hover .thumb img{transform:scale(1.03);}
.g-card .thumb .tag{
  position:absolute;left:16px;top:16px;
  padding:5px 13px;border-radius:var(--r-btn);
  font-size:.75rem;font-weight:700;
  background:rgba(10,12,14,.82);color:var(--brand);border:1px solid rgba(22,224,184,.35);
  backdrop-filter:blur(2px);
}
.g-card .body{padding:26px 28px 28px;}
.g-card h3{font-size:1.1875rem;font-weight:700;margin-bottom:12px;}
.g-card p{color:var(--text-dim);font-size:.9375rem;line-height:1.75;}
.g-card .foot{
  margin-top:20px;padding-top:18px;border-top:1px solid var(--line);
  display:flex;align-items:center;justify-content:space-between;gap:12px;
  font-size:.8125rem;color:var(--text-dim);
}
.g-card .foot a{font-weight:700;display:inline-flex;align-items:center;gap:8px;}

/* ---------- checklist ---------- */
.check-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.check{
  padding:28px 26px;border-radius:var(--r-card);
  background:var(--white);border:1px solid var(--line-light);
  box-shadow:var(--shadow-light);
  transition:transform .3s cubic-bezier(.22,1,.36,1),border-color .3s ease;
}
.check:hover{transform:translateY(-3px);border-color:rgba(15,184,148,.35);}
.check .ico{
  width:44px;height:44px;border-radius:12px;display:grid;place-items:center;
  background:rgba(15,184,148,.12);color:#0B8F72;font-size:1.05rem;margin-bottom:18px;
}
.check h3{font-size:1.0625rem;font-weight:700;color:var(--ink);margin-bottom:10px;}
.check p{font-size:.9063rem;color:var(--ink-dim);line-height:1.75;}

/* ---------- FAQ ---------- */
.faq-wrap{max-width:880px;margin:0 auto;}
.accordion-item{
  background:var(--bg-2);border:1px solid var(--line) !important;
  border-radius:16px !important;overflow:hidden;margin-bottom:14px;
}
.accordion-item:has(.accordion-button:not(.collapsed)){
  border-color:rgba(22,224,184,.45) !important;
  background:rgba(22,224,184,.045);
}
.accordion-button{
  background:transparent;color:var(--text);
  font-size:1.0625rem;font-weight:700;
  padding:22px 26px;box-shadow:none !important;
  display:flex;align-items:center;justify-content:space-between;gap:20px;
}
.accordion-button::after{
  display:none;
}
.accordion-button .sign{
  width:30px;height:30px;flex:0 0 30px;border-radius:50%;
  display:grid;place-items:center;
  border:1px solid var(--line-strong);color:var(--brand);font-size:.875rem;
  transition:transform .3s ease,background-color .3s ease,color .3s ease;
}
.accordion-button:not(.collapsed){background:transparent;color:var(--brand);}
.accordion-button:not(.collapsed) .sign{transform:rotate(180deg);background:var(--brand);color:#07231D;border-color:transparent;}
.accordion-body{padding:0 26px 24px;color:var(--text-dim);font-size:.9375rem;line-height:1.85;}

/* ---------- CTA ---------- */
.cta-band{
  position:relative;overflow:hidden;
  background:linear-gradient(120deg,#0E2A26 0%,#0A0C0E 62%,#15122C 100%);
  border-top:1px solid var(--line);border-bottom:1px solid var(--line);
}
.cta-band::before{
  content:"";position:absolute;right:-120px;top:-140px;width:420px;height:420px;border-radius:50%;
  background:radial-gradient(circle,rgba(22,224,184,.22),transparent 66%);
}
.cta-band .container{position:relative;z-index:2;}
.cta-inner{
  display:grid;grid-template-columns:1.25fr .75fr;gap:48px;align-items:center;
  padding:84px 0;
}
.cta-inner h2{font-size:clamp(1.7rem,3vw,2.4rem);}
.cta-inner p{margin-top:18px;color:var(--text-dim);max-width:620px;}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;justify-content:flex-end;}

/* ---------- footer ---------- */
.site-footer{
  background:#07090B;border-top:1px solid var(--line);
  padding:84px 0 34px;font-size:.9063rem;
}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.1fr;gap:44px;}
.footer-brand{display:flex;align-items:center;gap:12px;margin-bottom:20px;}
.footer-brand strong{font-size:1.0625rem;font-weight:800;color:var(--text);}
.footer-text{color:var(--text-dim);font-size:.9063rem;line-height:1.85;max-width:360px;}
.footer-col h3{
  font-size:.8125rem;font-weight:700;letter-spacing:.14em;text-transform:uppercase;
  color:var(--brand);margin-bottom:20px;
}
.footer-col ul li{margin-bottom:12px;}
.footer-col ul li a{color:var(--text-dim);font-size:.9063rem;}
.footer-col ul li a:hover{color:var(--brand);}
.qr-box{
  width:104px;height:104px;border-radius:14px;margin-bottom:20px;
  display:grid;place-items:center;text-align:center;
  background:rgba(255,255,255,.04);border:1px dashed var(--line-strong);
  color:var(--text-dim);font-size:.75rem;line-height:1.5;
}
.footer-bottom{
  margin-top:56px;padding-top:24px;border-top:1px solid var(--line);
  display:flex;flex-wrap:wrap;gap:14px;justify-content:space-between;
  color:var(--text-dim);font-size:.8125rem;
}

/* ---------- reveal ---------- */
.reveal{opacity:0;transform:translateY(14px);transition:opacity .55s cubic-bezier(.22,1,.36,1),transform .55s cubic-bezier(.22,1,.36,1);}
.reveal.in{opacity:1;transform:none;}

/* ---------- responsive ---------- */
@media(max-width:1199.98px){
  .container{padding-left:24px;padding-right:24px;}
  .section{padding:96px 0;}
  .footer-grid{grid-template-columns:1.4fr 1fr 1fr;gap:36px;}
  .footer-grid > :last-child{grid-column:1 / -1;}
}
@media(max-width:991.98px){
  :root{--nav-h:66px;}
  .nav-shell{grid-template-columns:auto 1fr auto;gap:16px;}
  .nav-left,.nav-right{display:none;}
  .nav-toggle{display:grid;place-items:center;}
  .brand{justify-self:center;}
  .brand-text strong{font-size:.875rem;}
  .page-hero{padding:calc(var(--nav-h) + 64px) 0 64px;}
  .stagger{grid-template-columns:1fr;}
  .stagger .col-b{padding-top:0;}
  .check-grid{grid-template-columns:1fr 1fr;}
  .cta-inner{grid-template-columns:1fr;gap:32px;padding:64px 0;}
  .cta-actions{justify-content:flex-start;}
  .step{grid-template-columns:72px 1fr;gap:20px;padding:26px 24px;}
  .step-num{font-size:2rem;}
}
@media(max-width:767.98px){
  .container{padding-left:20px;padding-right:20px;}
  .section{padding:76px 0;}
  .section-sm{padding:64px 0;}
  .sec-head{margin-bottom:40px;}
  .check-grid{grid-template-columns:1fr;}
  .hero-stats{gap:26px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
  .footer-grid > :first-child{grid-column:1 / -1;}
  .cta-actions .btn-brand,.cta-actions .btn-ghost{flex:1 1 100%;}
}
@media(max-width:575.98px){
  :root{--nav-h:62px;}
  .container{padding-left:16px;padding-right:16px;}
  .brand-text span{display:none;}
  .page-hero h1{font-size:1.75rem;}
  .step{grid-template-columns:1fr;gap:12px;}
  .footer-grid{grid-template-columns:1fr;}
  .footer-bottom{flex-direction:column;}
  .step .mini-list span{font-size:.6875rem;}
}
@media(prefers-reduced-motion:reduce){
  *,*::before,*::after{animation:none !important;transition:none !important;}
  .reveal{opacity:1;transform:none;}
  html{scroll-behavior:auto;}
}

/* roulang page: category2 */
:root{
  --bg:#0A0C0E;
  --bg-2:#12151A;
  --bg-3:#171B21;
  --light:#F5F6F3;
  --white:#FFFFFF;
  --primary:#16E0B8;
  --primary-hover:#3BF0CC;
  --primary-dark:#0FB894;
  --violet:#7C6CFF;
  --text:#F2F5F4;
  --text-2:#A8B0AD;
  --text-dark:#111315;
  --text-dark-2:#5C6662;
  --line:rgba(255,255,255,.10);
  --line-strong:rgba(255,255,255,.18);
  --line-light:rgba(17,19,21,.08);
  --r-card:20px;
  --r-btn:12px;
  --r-pill:999px;
  --r-img:16px;
  --sh-dark:0 20px 60px rgba(0,0,0,.45);
  --sh-light:0 10px 40px rgba(0,0,0,.06);
  --sh-primary:0 12px 32px rgba(22,224,184,.24);
  --container:1280px;
  --gap:24px;
  --ease:cubic-bezier(.22,1,.36,1);
  --bs-body-bg:var(--bg);
  --bs-body-color:var(--text);
  --bs-primary:var(--primary);
  --bs-primary-rgb:22,224,184;
  --bs-border-color:var(--line);
  --bs-border-radius:var(--r-btn);
  --bs-link-color:var(--primary);
  --bs-link-hover-color:var(--primary-hover);
  --bs-font-sans-serif:"Noto Sans SC","PingFang SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
}

*,*::before,*::after{box-sizing:border-box;}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%;}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:var(--bs-font-sans-serif);
  font-size:1rem;
  line-height:1.8;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;transition:color .25s var(--ease),border-color .25s var(--ease);}
a:hover{color:var(--primary-hover);}
ul{list-style:none;margin:0;padding:0;}
h1,h2,h3,h4{margin:0;font-weight:800;letter-spacing:-.02em;color:inherit;}
h1{font-size:clamp(2.5rem,5vw,4.5rem);line-height:1.05;letter-spacing:-.03em;font-weight:900;}
h2{font-size:clamp(1.8rem,3.5vw,2.8rem);line-height:1.15;}
h3{font-size:1.25rem;line-height:1.35;font-weight:700;}
p{margin:0 0 1em;}
button{font-family:inherit;}
:focus-visible{outline:2px solid var(--primary);outline-offset:3px;border-radius:4px;}

.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 32px;}
.section{padding:120px 0;}
.section-light{background:var(--light);color:var(--text-dark);}
.section-light .lead,.section-light .muted{color:var(--text-dark-2);}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-family:"Space Grotesk",Inter,system-ui,sans-serif;
  font-size:.8125rem;font-weight:600;letter-spacing:.14em;text-transform:uppercase;
  color:var(--primary);margin-bottom:18px;
}
.eyebrow::before{content:"";width:26px;height:2px;background:var(--primary);display:inline-block;}
.section-light .eyebrow{color:var(--primary-dark);}
.lead{font-size:1.0625rem;color:var(--text-2);max-width:720px;}
.muted{color:var(--text-2);font-size:.875rem;}

/* ---------- 按钮 ---------- */
.btn{font-weight:700;border-radius:var(--r-btn);transition:transform .28s var(--ease),box-shadow .28s var(--ease),background .25s var(--ease),color .25s var(--ease),border-color .25s var(--ease);}
.btn-primary{
  --bs-btn-bg:var(--primary);
  --bs-btn-border-color:var(--primary);
  --bs-btn-color:#06231C;
  --bs-btn-hover-bg:var(--primary-hover);
  --bs-btn-hover-border-color:var(--primary-hover);
  --bs-btn-hover-color:#06231C;
  --bs-btn-active-bg:var(--primary-dark);
  --bs-btn-active-border-color:var(--primary-dark);
  --bs-btn-active-color:#06231C;
  background:var(--primary);
  border:1px solid var(--primary);
  color:#06231C;
  padding:13px 28px;
}
.btn-primary:hover,.btn-primary:focus-visible{background:var(--primary-hover);border-color:var(--primary-hover);color:#06231C;transform:translateY(-2px);box-shadow:var(--sh-primary);}
.btn-primary:active{transform:translateY(1px);}
.btn-ghost{
  background:transparent;border:1px solid var(--line-strong);color:var(--text);
  padding:13px 28px;
}
.btn-ghost:hover{border-color:var(--primary);color:var(--primary);transform:translateY(-2px);}
.btn-sm{padding:10px 20px;font-size:.875rem;}

/* ---------- 导航 ---------- */
.site-header{
  position:fixed;inset:0 0 auto 0;z-index:1040;
  background:transparent;
  border-bottom:1px solid transparent;
  transition:background .35s var(--ease),border-color .35s var(--ease),box-shadow .35s var(--ease);
}
.site-header.is-scrolled{
  background:rgba(10,12,14,.96);
  border-bottom:1px solid var(--line);
  box-shadow:0 8px 30px rgba(0,0,0,.45);
}
.nav-wrap{
  display:grid;grid-template-columns:1fr auto 1fr;align-items:center;gap:24px;
  min-height:78px;
}
.nav-left,.nav-right{display:flex;align-items:center;gap:6px;}
.nav-right{justify-content:flex-end;gap:14px;}
.nav-link{
  position:relative;display:inline-block;
  padding:10px 14px;font-size:.9375rem;font-weight:500;color:var(--text-2);
  border-radius:var(--r-pill);
}
.nav-link::after{
  content:"";position:absolute;left:14px;right:14px;bottom:6px;height:2px;
  background:var(--primary);transform:scaleX(0);transform-origin:left;
  transition:transform .32s var(--ease);
}
.nav-link:hover{color:var(--text);}
.nav-link:hover::after{transform:scaleX(1);}
.nav-link.active{color:var(--text);font-weight:700;}
.nav-link.active::after{transform:scaleX(1);}
.brand{display:inline-flex;align-items:center;gap:10px;justify-self:center;}
.brand-mark{
  width:38px;height:38px;border-radius:12px;flex:0 0 38px;
  display:grid;place-items:center;
  background:linear-gradient(135deg,var(--primary),#0EA88C);
  color:#06231C;font-family:"Space Grotesk",Inter,sans-serif;font-weight:700;font-size:.9375rem;letter-spacing:.02em;
}
.brand-text{font-size:1.0625rem;font-weight:800;letter-spacing:-.02em;color:var(--text);white-space:nowrap;}
.bt-short{display:none;}
.nav-toggle{
  display:none;background:transparent;border:1px solid var(--line-strong);color:var(--text);
  width:44px;height:44px;border-radius:12px;font-size:1rem;align-items:center;justify-content:center;
  justify-self:end;
}
.nav-toggle:hover{border-color:var(--primary);color:var(--primary);}
.mobile-menu{
  display:none;background:rgba(10,12,14,.985);border-top:1px solid var(--line);
  padding:18px 0 26px;
}
.mobile-menu.is-open{display:block;}
.mobile-menu .container{display:flex;flex-direction:column;gap:4px;}
.mobile-menu .nav-link{padding:14px 8px;font-size:1rem;border-bottom:1px solid var(--line);border-radius:0;}
.mobile-menu .nav-link::after{display:none;}
.mobile-menu .btn{margin-top:16px;width:100%;}

/* ---------- Hero ---------- */
.hero{
  position:relative;overflow:hidden;
  padding:170px 0 90px;
  background:
    linear-gradient(115deg,rgba(10,12,14,.96) 0%,rgba(10,12,14,.82) 44%,rgba(10,12,14,.55) 100%),
    url('/assets/images/backpic/back-2.webp') center/cover no-repeat;
}
.hero::after{
  content:"";position:absolute;inset:auto 0 -1px 0;height:180px;
  background:linear-gradient(180deg,rgba(10,12,14,0) 0%,var(--bg) 100%);
  pointer-events:none;
}
.hero-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:64px;align-items:center;position:relative;z-index:2;}
.hero h1{margin-bottom:22px;}
.hero h1 .hl{color:var(--primary);}
.hero-sub{font-size:1.125rem;color:var(--text-2);max-width:600px;margin-bottom:34px;}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:46px;}
.crumbs{display:flex;align-items:center;gap:10px;font-size:.875rem;color:var(--text-2);margin-bottom:26px;}
.crumbs a:hover{color:var(--primary);}
.crumbs span.sep{opacity:.45;}
.hero-stats{display:grid;grid-template-columns:1.4fr 1fr 1fr;gap:20px;border-top:1px solid var(--line);padding-top:26px;}
.stat-num{font-family:"Space Grotesk",Inter,sans-serif;font-size:clamp(1.6rem,2.4vw,2.2rem);font-weight:700;color:var(--primary);line-height:1;}
.stat-label{display:block;margin-top:8px;font-size:.8125rem;color:var(--text-2);}
.hero-visual{position:relative;border-radius:var(--r-card);overflow:hidden;border:1px solid var(--line);box-shadow:var(--sh-dark);}
.hero-visual img{width:100%;height:420px;object-fit:cover;background:var(--bg-3);}
.hero-chip{
  position:absolute;left:20px;bottom:20px;
  background:rgba(10,12,14,.86);border:1px solid var(--line);
  border-radius:var(--r-pill);padding:10px 20px;font-size:.8125rem;color:var(--text);
  font-family:"Space Grotesk",Inter,sans-serif;
}

/* ---------- 标签筛选 ---------- */
.filter-bar{
  display:flex;flex-wrap:wrap;gap:12px;align-items:center;
  padding:22px 24px;border:1px solid var(--line);border-radius:var(--r-card);
  background:var(--bg-2);margin-bottom:40px;
}
.chip{
  border:1px solid var(--line-strong);background:transparent;color:var(--text-2);
  border-radius:var(--r-pill);padding:9px 20px;font-size:.875rem;font-weight:500;
  transition:all .26s var(--ease);
}
.chip:hover{color:var(--text);border-color:var(--primary);transform:translateY(-2px);}
.chip.is-active{background:var(--primary);border-color:var(--primary);color:#06231C;font-weight:700;}
.filter-count{margin-left:auto;font-size:.8125rem;color:var(--text-2);font-family:"Space Grotesk",Inter,sans-serif;}
.filter-count b{color:var(--primary);}

/* ---------- 分类卡片瀑布 ---------- */
.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:var(--gap);}
.gcard{
  display:flex;flex-direction:column;
  background:var(--bg-2);border:1px solid var(--line);border-radius:var(--r-card);
  overflow:hidden;transition:transform .35s var(--ease),border-color .35s var(--ease),box-shadow .35s var(--ease);
}
.gcard:hover{transform:translateY(-4px);border-color:rgba(22,224,184,.55);box-shadow:var(--sh-dark);}
.gcard.is-hide{display:none;}
.gcard-media{display:block;overflow:hidden;background:var(--bg-3);}
.gcard-media img{width:100%;aspect-ratio:16/10;object-fit:cover;transition:transform .5s var(--ease);}
.gcard:hover .gcard-media img{transform:scale(1.03);}
.gcard-body{padding:24px;display:flex;flex-direction:column;gap:14px;flex:1;}
.gcard-meta{display:flex;align-items:center;gap:12px;flex-wrap:wrap;}
.badge-pill{
  display:inline-block;border-radius:var(--r-pill);padding:5px 14px;
  font-size:.75rem;font-weight:700;letter-spacing:.02em;
  background:rgba(22,224,184,.12);color:var(--primary);border:1px solid rgba(22,224,184,.26);
}
.badge-violet{background:rgba(124,108,255,.14);color:#A99EFF;border-color:rgba(124,108,255,.32);}
.gcard-meta time{font-size:.8125rem;color:var(--text-2);font-family:"Space Grotesk",Inter,sans-serif;}
.gcard-body h3 a{color:var(--text);}
.gcard-body h3 a:hover{color:var(--primary);}
.gcard-body p{font-size:.9375rem;color:var(--text-2);margin:0;}
.gcard-foot{
  margin-top:auto;padding-top:16px;border-top:1px solid var(--line);
  display:flex;align-items:center;justify-content:space-between;
  font-size:.8125rem;color:var(--text-2);
}
.link-more{color:var(--primary);font-weight:700;display:inline-flex;align-items:center;gap:7px;}
.link-more i{transition:transform .3s var(--ease);}
.gcard:hover .link-more i{transform:translateX(4px);}

/* ---------- 榜单 / 更新条 ---------- */
.update-strip{
  display:grid;grid-template-columns:repeat(4,1fr);gap:20px;
  padding:26px;border:1px solid var(--line);border-radius:var(--r-card);background:var(--bg-2);
}
.strip-item{display:flex;gap:14px;align-items:flex-start;}
.strip-num{
  font-family:"Space Grotesk",Inter,sans-serif;font-size:1.5rem;font-weight:700;
  color:var(--primary);line-height:1;min-width:34px;
}
.strip-item h3{font-size:1rem;margin-bottom:4px;}
.strip-item p{font-size:.8125rem;color:var(--text-2);margin:0;}

.rank-list{display:grid;gap:12px;}
.rank-item{
  display:grid;grid-template-columns:52px 1fr auto;align-items:center;gap:18px;
  padding:18px 22px;border:1px solid var(--line);border-radius:var(--r-img);
  background:var(--bg-2);transition:all .3s var(--ease);
}
.rank-item:hover{border-color:rgba(22,224,184,.5);transform:translateX(4px);}
.rank-no{font-family:"Space Grotesk",Inter,sans-serif;font-weight:700;color:var(--violet);font-size:1.0625rem;}
.rank-item:first-child .rank-no{color:var(--primary);}
.rank-item h3{font-size:1rem;font-weight:700;}
.rank-item p{margin:2px 0 0;font-size:.8125rem;color:var(--text-2);}
.rank-bar{width:120px;height:6px;border-radius:var(--r-pill);background:rgba(255,255,255,.08);overflow:hidden;}
.rank-bar span{display:block;height:100%;background:linear-gradient(90deg,var(--primary),var(--violet));}

/* ---------- 时间线 ---------- */
.timeline{position:relative;padding-left:34px;}
.timeline::before{content:"";position:absolute;left:8px;top:8px;bottom:8px;width:2px;background:var(--line);}
.tl-item{position:relative;padding-bottom:34px;}
.tl-item:last-child{padding-bottom:0;}
.tl-dot{
  position:absolute;left:-34px;top:6px;width:18px;height:18px;border-radius:50%;
  background:var(--bg);border:2px solid var(--primary);
}
.tl-body h3{font-size:1.0625rem;margin-bottom:6px;}
.tl-body p{font-size:.9375rem;color:var(--text-2);margin:0 0 6px;}
.tl-time{font-size:.8125rem;color:var(--text-2);font-family:"Space Grotesk",Inter,sans-serif;}

/* ---------- 双栏 ---------- */
.split{display:grid;grid-template-columns:1.15fr .85fr;gap:56px;align-items:start;}
.panel{
  border:1px solid var(--line);border-radius:var(--r-card);background:var(--bg-2);padding:32px;
}
.panel h3{margin-bottom:14px;}
.panel ul{display:grid;gap:14px;}
.panel ul li{display:flex;gap:12px;font-size:.9375rem;color:var(--text-2);}
.panel ul li i{color:var(--primary);margin-top:6px;font-size:.75rem;}

/* ---------- FAQ ---------- */
.faq-wrap{max-width:880px;margin:0 auto;}
.accordion-item{
  background:var(--bg-2);border:1px solid var(--line);border-radius:var(--r-img) !important;
  margin-bottom:14px;overflow:hidden;
}
.accordion-button{
  background:transparent;color:var(--text);font-weight:700;font-size:1.0625rem;
  padding:22px 24px;box-shadow:none !important;
}
.accordion-button:not(.collapsed){background:rgba(22,224,184,.08);color:var(--primary);}
.accordion-button::after{
  background-image:none;content:"\2b";font-family:"Font Awesome 6 Free";font-weight:900;
  width:auto;height:auto;font-size:1rem;color:var(--primary);
  transform:none;transition:transform .3s var(--ease);
}
.accordion-button:not(.collapsed)::after{content:"\f068";transform:none;}
.accordion-body{padding:0 24px 24px;color:var(--text-2);font-size:.9375rem;}

/* ---------- CTA ---------- */
.cta-band{
  background:linear-gradient(120deg,#16E0B8 0%,#3BF0CC 52%,#8E7DFF 100%);
  color:#06231C;padding:88px 0;
}
.cta-band h2{color:#06231C;margin-bottom:14px;}
.cta-band p{color:rgba(6,35,28,.78);max-width:640px;font-size:1.0625rem;margin-bottom:0;}
.cta-band .btn-dark-cta{
  background:#0A0C0E;color:var(--text);border:1px solid #0A0C0E;padding:15px 34px;border-radius:var(--r-btn);font-weight:700;
  transition:transform .28s var(--ease),box-shadow .28s var(--ease);
}
.cta-band .btn-dark-cta:hover{color:var(--primary);transform:translateY(-2px);box-shadow:0 18px 40px rgba(0,0,0,.28);}
.cta-inner{display:flex;align-items:center;justify-content:space-between;gap:40px;flex-wrap:wrap;}

/* ---------- 页脚 ---------- */
.site-footer{background:#07090B;border-top:1px solid var(--line);padding:80px 0 34px;color:var(--text-2);}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:44px;}
.footer-brand{display:flex;align-items:center;gap:12px;margin-bottom:18px;}
.footer-brand strong{color:var(--text);font-size:1.0625rem;font-weight:800;}
.footer-text{font-size:.875rem;line-height:1.9;margin:0;max-width:340px;}
.footer-col h3{font-size:.9375rem;color:var(--text);margin-bottom:18px;font-weight:700;letter-spacing:.02em;}
.footer-col ul{display:grid;gap:11px;}
.footer-col ul li a{font-size:.875rem;color:var(--text-2);}
.footer-col ul li a:hover{color:var(--primary);}
.qr-box{
  width:104px;height:104px;border:1px dashed var(--line-strong);border-radius:14px;
  display:grid;place-items:center;text-align:center;font-size:.75rem;line-height:1.5;
  color:var(--text-2);margin-bottom:18px;background:rgba(255,255,255,.02);
}
.footer-bottom{
  margin-top:56px;padding-top:24px;border-top:1px solid var(--line);
  display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;font-size:.8125rem;color:var(--text-2);
}

/* ---------- 动效 ---------- */
.reveal{opacity:0;transform:translateY(12px);transition:opacity .6s var(--ease),transform .6s var(--ease);}
.reveal.is-in{opacity:1;transform:none;}

/* ---------- 响应式 ---------- */
@media (max-width:1400px){
  .container{padding:0 32px;}
}
@media (max-width:1200px){
  .container{padding:0 28px;}
  .section{padding:104px 0;}
  .hero-grid{gap:44px;}
  .grid-3{grid-template-columns:repeat(2,1fr);}
  .update-strip{grid-template-columns:repeat(2,1fr);}
  .footer-grid{grid-template-columns:1.5fr 1fr 1fr;gap:36px;}
}
@media (max-width:992px){
  .nav-left,.nav-right{display:none;}
  .nav-toggle{display:inline-flex;}
  .nav-wrap{grid-template-columns:1fr auto 1fr;min-height:70px;}
  .hero{padding:140px 0 72px;}
  .hero-grid{grid-template-columns:1fr;}
  .hero-visual img{height:320px;}
  .hero-stats{grid-template-columns:1fr 1fr 1fr;gap:16px;}
  .split{grid-template-columns:1fr;gap:34px;}
  .section{padding:88px 0;}
  .footer-grid{grid-template-columns:1fr 1fr;}
}
@media (max-width:768px){
  .container{padding:0 20px;}
  .section{padding:72px 0;}
  .grid-3{grid-template-columns:1fr;}
  .update-strip{grid-template-columns:1fr;padding:20px;}
  .rank-item{grid-template-columns:38px 1fr;gap:12px;}
  .rank-bar{display:none;}
  .hero-stats{grid-template-columns:1fr;gap:20px;}
  .cta-band{padding:64px 0;}
  .footer-grid{grid-template-columns:1fr;gap:32px;}
  .faq-wrap{max-width:100%;}
}
@media (max-width:576px){
  .container{padding:0 16px;}
  body{font-size:.9375rem;}
  .bt-full{display:none;}
  .bt-short{display:inline;}
  .brand-mark{width:34px;height:34px;flex:0 0 34px;font-size:.8125rem;}
  .hero{padding:124px 0 60px;}
  .hero-actions .btn{width:100%;text-align:center;}
  .filter-bar{padding:16px;}
  .chip{padding:8px 16px;font-size:.8125rem;}
  .filter-count{margin-left:0;width:100%;}
  .panel{padding:24px;}
  .gcard-body{padding:20px;}
  .btn-primary,.btn-ghost{padding:12px 22px;}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation:none !important;transition:none !important;}
  html{scroll-behavior:auto;}
  .reveal{opacity:1;transform:none;}
}