/* roulang page: index */
:root{
  --ink:#0B0C0E;
  --ink-soft:#16181C;
  --paper:#F6F5F1;
  --paper-2:#ECEAE3;
  --neon:#C8FF3D;
  --neon-soft:rgba(200,255,61,.08);
  --neon-line:rgba(200,255,61,.55);
  --flare:#FF4D2E;
  --muted:#6B6F76;
  --line:rgba(11,12,14,.12);
  --line-dark:rgba(255,255,255,.14);
  --r-s:8px;
  --r-m:14px;
  --r-l:22px;
  --shadow-1:0 2px 8px rgba(11,12,14,.04);
  --shadow-2:0 18px 40px rgba(11,12,14,.10);
  --maxw:1200px;
  --font-cn:'Noto Sans SC','PingFang SC','Microsoft YaHei',sans-serif;
  --font-num:'Barlow Condensed','Arial Narrow',Impact,sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:var(--font-cn);
  font-size:16px;
  line-height:1.85;
  color:var(--ink);
  background:var(--paper);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none;transition:color .2s ease}
a:hover{color:var(--ink)}
button{font-family:inherit}
h1,h2,h3,h4,p,ul,ol,figure{margin:0}
ul,ol{padding:0;list-style:none}
::selection{background:var(--neon);color:var(--ink)}
:focus-visible{outline:2px solid var(--neon);outline-offset:2px;border-radius:4px}
.container-x{width:100%;max-width:var(--maxw);margin:0 auto;padding:0 24px}
.sec{padding:96px 0}
.sec--paper2{background:var(--paper-2)}
.sec--ink{background:var(--ink);color:#fff}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12px;letter-spacing:.14em;font-weight:700;
  color:var(--muted);text-transform:uppercase;
}
.eyebrow::before{content:"";width:22px;height:2px;background:var(--neon);display:inline-block}
.eyebrow--dark{color:rgba(255,255,255,.6)}
.h2{font-size:clamp(28px,3vw,42px);line-height:1.15;font-weight:800;letter-spacing:-.01em}
.h3{font-size:22px;font-weight:700;line-height:1.35}
.sec-head{display:flex;flex-wrap:wrap;align-items:flex-end;justify-content:space-between;gap:20px;margin-bottom:44px}
.sec-head p{max-width:520px;color:var(--muted);font-size:15px;margin-top:12px}
.text-muted-2{color:var(--muted)}

/* ---------- buttons ---------- */
.btn-mk{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 28px;border-radius:10px;border:1px solid transparent;
  font-size:15px;font-weight:700;letter-spacing:.02em;cursor:pointer;
  transition:transform .2s ease,background .2s ease,box-shadow .2s ease,color .2s ease,border-color .2s ease;
}
.btn-mk--neon{background:var(--neon);color:var(--ink)}
.btn-mk--neon:hover{background:#D9FF6B;transform:translateY(-1px);box-shadow:0 10px 26px rgba(200,255,61,.30);color:var(--ink)}
.btn-mk--neon:active{transform:translateY(0);box-shadow:none}
.btn-mk--ghost{background:transparent;color:#fff;border-color:rgba(255,255,255,.35)}
.btn-mk--ghost:hover{border-color:var(--neon);color:var(--neon)}
.btn-mk--ghost-light{background:transparent;color:var(--ink);border-color:var(--line)}
.btn-mk--ghost-light:hover{border-color:var(--neon);color:var(--ink);background:rgba(200,255,61,.14)}
.btn-mk--flare{background:var(--flare);color:#fff}
.btn-mk--flare:hover{background:#FF6448;transform:translateY(-1px);color:#fff}
.btn-mk--sm{height:42px;padding:0 20px;font-size:14px}
.btn-block{width:100%}

/* ---------- badges ---------- */
.badge-mk{
  display:inline-flex;align-items:center;gap:6px;
  height:26px;padding:0 12px;border-radius:999px;
  font-size:12px;font-weight:700;letter-spacing:.12em;
  background:var(--paper-2);color:var(--ink);
}
.badge-mk--neon{background:var(--neon);color:var(--ink)}
.badge-mk--flare{background:var(--flare);color:#fff}
.badge-mk--dark{background:rgba(255,255,255,.1);color:rgba(255,255,255,.78)}

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:1000;
  background:rgba(11,12,14,.92);
  backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);
  border-bottom:1px solid transparent;
  transition:background .3s ease,box-shadow .3s ease;
}
.site-header::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:1px;
  background:linear-gradient(90deg,rgba(200,255,61,0),rgba(200,255,61,.35),rgba(200,255,61,0));
}
.header-inner{display:flex;align-items:center;justify-content:space-between;gap:20px;height:64px}
.brand{display:flex;align-items:center;gap:10px;flex-shrink:0}
.brand-mark{
  width:24px;height:24px;border-radius:5px;flex-shrink:0;
  border:2px solid var(--neon);
  box-shadow:0 0 14px rgba(200,255,61,.45) inset,0 0 10px rgba(200,255,61,.25);
  position:relative;
}
.brand-mark::after{
  content:"";position:absolute;inset:6px;background:var(--neon);border-radius:1px;
}
.brand-text{display:flex;flex-direction:column;line-height:1.1}
.brand-main{color:#fff;font-size:16px;font-weight:800;letter-spacing:.02em}
.brand-sub{color:rgba(255,255,255,.55);font-size:10px;letter-spacing:.18em;margin-top:3px}
.nav-links{display:flex;align-items:center;gap:26px}
.nav-link{
  position:relative;color:rgba(255,255,255,.72);font-size:15px;letter-spacing:.02em;
  padding:6px 0;transition:color .2s ease;
}
.nav-link::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:2px;background:var(--neon);
  transform:scaleX(0);transform-origin:left;transition:transform .2s ease;
}
.nav-link:hover{color:#fff}
.nav-link:hover::after{transform:scaleX(1)}
.nav-link.is-active{color:#fff;text-shadow:0 0 12px rgba(200,255,61,.45)}
.nav-link.is-active::after{transform:scaleX(1)}
.header-cta{display:flex;align-items:center;gap:12px}
.header-cta .btn-mk{height:38px;padding:0 20px;font-size:14px;border-radius:10px}
.menu-toggle{
  display:none;width:44px;height:44px;border:1px solid var(--line-dark);border-radius:10px;
  background:transparent;color:#fff;align-items:center;justify-content:center;
}
.menu-toggle span{display:block;width:18px;height:2px;background:#fff;position:relative}
.menu-toggle span::before,.menu-toggle span::after{
  content:"";position:absolute;left:0;width:18px;height:2px;background:#fff;
}
.menu-toggle span::before{top:-6px}
.menu-toggle span::after{top:6px}
.drawer{
  position:fixed;inset:0;z-index:1200;background:rgba(11,12,14,.98);
  transform:translateX(100%);transition:transform .28s cubic-bezier(.2,.7,.2,1);
  padding:24px 24px 40px;overflow-y:auto;
}
.drawer.is-open{transform:translateX(0)}
.drawer-top{display:flex;align-items:center;justify-content:space-between;margin-bottom:28px}
.drawer-close{
  width:44px;height:44px;border:1px solid var(--line-dark);border-radius:10px;
  background:transparent;color:#fff;font-size:22px;line-height:1;
}
.drawer-nav{display:flex;flex-direction:column;gap:4px}
.drawer-nav a{
  color:rgba(255,255,255,.82);font-size:20px;font-weight:600;padding:14px 0 14px 16px;
  border-left:3px solid transparent;transition:color .2s ease,border-color .2s ease;
}
.drawer-nav a:hover{color:var(--neon)}
.drawer-nav a.is-active{color:#fff;border-left-color:var(--neon)}
.drawer .btn-mk{margin-top:28px}

/* ---------- hero ---------- */
.hero{
  position:relative;color:#fff;overflow:hidden;
  background-image:linear-gradient(90deg,rgba(11,12,14,.92) 0%,rgba(11,12,14,.86) 42%,rgba(11,12,14,.35) 100%),url('/assets/images/backpic/back-1.png');
  background-size:cover;background-position:center right;
  min-height:78vh;display:flex;align-items:center;
}
.hero-inner{
  display:grid;grid-template-columns:minmax(0,7fr) minmax(0,5fr);
  gap:48px;align-items:center;width:100%;padding:88px 0;
}
.hero-badge{
  display:inline-flex;align-items:center;gap:8px;height:30px;padding:0 14px;border-radius:999px;
  background:rgba(200,255,61,.12);border:1px solid rgba(200,255,61,.42);
  color:var(--neon);font-size:12px;font-weight:700;letter-spacing:.14em;
}
.hero h1{
  font-size:clamp(34px,4.6vw,60px);line-height:1.08;font-weight:800;letter-spacing:-.02em;
  margin:22px 0 20px;color:#fff;
}
.hero h1 .hl{color:var(--neon)}
.hero-lead{font-size:19px;line-height:1.7;color:rgba(255,255,255,.76);max-width:540px}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:32px}
.hero-stats{
  display:flex;flex-wrap:wrap;gap:44px;margin-top:46px;padding-top:26px;
  border-top:1px solid var(--line-dark);
}
.hero-stat b{
  display:block;font-family:var(--font-num);font-size:38px;line-height:1;
  color:var(--neon);font-weight:600;letter-spacing:.01em;
}
.hero-stat span{display:block;font-size:13px;color:rgba(255,255,255,.6);margin-top:8px}
.hero-visual{position:relative;border-radius:var(--r-l);overflow:hidden;border:1px solid var(--line-dark);box-shadow:0 30px 60px rgba(0,0,0,.45)}
.hero-visual img{width:100%;height:100%;object-fit:cover;aspect-ratio:4/3}
.hero-visual::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(11,12,14,0) 40%,rgba(11,12,14,.75) 100%);
}
.hero-visual figcaption{
  position:absolute;left:20px;right:20px;bottom:18px;z-index:2;
  font-size:13px;color:rgba(255,255,255,.82);letter-spacing:.02em;
}

/* ---------- comparison table ---------- */
.table-wrap{overflow-x:auto;border-radius:var(--r-m);border:1px solid var(--line);background:#fff}
table.cmp{width:100%;border-collapse:collapse;min-width:680px}
table.cmp thead th{
  position:sticky;top:0;background:var(--paper-2);z-index:2;
  font-size:14px;font-weight:700;letter-spacing:.04em;color:var(--ink);
  padding:18px 20px;text-align:center;border-bottom:1px solid var(--line);
}
table.cmp thead th:first-child{text-align:left;width:34%}
table.cmp thead th.reco{position:relative;background:rgba(200,255,61,.18);border-top:3px solid var(--neon)}
table.cmp thead th.reco .badge-mk{margin-left:8px;vertical-align:middle}
table.cmp tbody td{
  padding:0 20px;height:60px;font-size:15px;text-align:center;
  border-bottom:1px solid var(--line);
}
table.cmp tbody td:first-child{text-align:left;font-weight:700}
table.cmp tbody td.reco{background:var(--neon-soft)}
table.cmp tbody tr:last-child td{border-bottom:none}
table.cmp tbody tr:hover td{background:rgba(200,255,61,.06)}
table.cmp tbody tr:hover td.reco{background:rgba(200,255,61,.12)}
.tick{color:var(--neon);font-size:18px;font-weight:800;filter:drop-shadow(0 0 6px rgba(200,255,61,.5))}
.dash{color:rgba(11,12,14,.25);font-weight:700}
.table-note{font-size:13px;color:var(--muted);margin-top:16px}

/* ---------- level rows ---------- */
.levels{display:grid;grid-template-columns:minmax(0,4fr) minmax(0,8fr);gap:56px;align-items:start}
.levels-aside{position:sticky;top:96px}
.levels-list{border-top:1px solid var(--line)}
.level-row{
  display:grid;grid-template-columns:96px minmax(0,1fr);gap:24px;align-items:start;
  padding:34px 0;border-bottom:1px solid var(--line);
}
.level-num{
  font-family:var(--font-num);font-size:52px;line-height:.9;font-weight:600;
  color:var(--neon);opacity:.9;
  border-left:2px solid var(--neon);padding-left:16px;
}
.level-row h3{font-size:22px;font-weight:700;margin-bottom:8px}
.level-row p{font-size:15px;color:var(--muted);max-width:640px}
.level-row .tagline{font-size:13px;color:var(--ink);font-weight:700;letter-spacing:.08em;margin-top:12px;display:inline-block;border-bottom:2px solid var(--neon)}

/* ---------- preview grid ---------- */
.preview-grid{display:grid;grid-template-columns:repeat(12,1fr);gap:24px}
.card-mk{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-m);overflow:hidden;
  box-shadow:var(--shadow-1);transition:transform .32s ease,box-shadow .32s ease,border-color .32s ease;
  display:flex;flex-direction:column;
}
.card-mk:hover{transform:translateY(-4px);box-shadow:var(--shadow-2);border-color:var(--neon-line)}
.card-media{overflow:hidden;position:relative;background:var(--paper-2)}
.card-media img{width:100%;height:100%;object-fit:cover;transition:transform .32s ease}
.card-mk:hover .card-media img{transform:scale(1.04)}
.card-body-mk{padding:24px;display:flex;flex-direction:column;gap:12px;flex:1}
.card-title{font-size:20px;font-weight:700;line-height:1.4}
.card-desc{font-size:14px;color:var(--muted);line-height:1.7}
.card-foot{margin-top:auto;display:flex;align-items:center;justify-content:space-between;padding-top:8px}
.arrow-link{font-size:14px;font-weight:700;display:inline-flex;align-items:center;gap:6px;color:var(--ink)}
.arrow-link::after{content:"→";transition:transform .2s ease}
.card-mk:hover .arrow-link::after,.arrow-link:hover::after{transform:translateX(4px)}
.pv-big{grid-column:span 7}
.pv-big .card-media img{aspect-ratio:16/9}
.pv-sm{grid-column:span 5;flex-direction:row;align-items:stretch}
.pv-sm .card-media{width:42%;flex-shrink:0}
.pv-sm .card-media img{aspect-ratio:1/1;height:100%}
.pv-sm .card-body-mk{padding:22px}
.pv-sm .card-title{font-size:18px}
.pv-bar{
  grid-column:span 12;display:flex;align-items:center;justify-content:space-between;gap:20px;
  padding:22px 28px;border-radius:var(--r-m);border:1px dashed rgba(200,255,61,.55);
  background:rgba(200,255,61,.06);
}
.pv-bar h3{font-size:18px;font-weight:700}
.pv-bar p{font-size:14px;color:var(--muted);margin-top:4px}

/* ---------- posts ---------- */
.posts-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:24px}
.post-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-m);overflow:hidden;
  box-shadow:var(--shadow-1);transition:transform .32s ease,box-shadow .32s ease,border-color .32s ease;
  display:flex;flex-direction:column;
}
.post-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-2);border-color:var(--neon-line)}
.post-cover{overflow:hidden;background:var(--paper-2)}
.post-cover img{width:100%;aspect-ratio:3/2;object-fit:cover;transition:transform .32s ease}
.post-card:hover .post-cover img{transform:scale(1.04)}
.post-body{padding:22px 24px 24px;display:flex;flex-direction:column;gap:12px;flex:1}
.post-meta{display:flex;align-items:center;gap:12px;flex-wrap:wrap}
.post-date{font-size:13px;color:var(--muted)}
.post-title{font-size:19px;font-weight:700;line-height:1.45}
.post-title.clamp-2{display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.post-summary{font-size:14px;color:var(--muted);line-height:1.7}
.post-summary.clamp-2{display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.empty-state{
  border:1px dashed rgba(200,255,61,.55);border-radius:var(--r-m);min-height:180px;
  display:flex;flex-direction:column;align-items:center;justify-content:center;gap:16px;
  color:var(--muted);font-size:14px;text-align:center;padding:32px;
}

/* ---------- FAQ ---------- */
.faq-grid{display:grid;grid-template-columns:minmax(0,4fr) minmax(0,8fr);gap:56px;align-items:start}
.accordion-mk{border-top:1px solid var(--line)}
.acc-item{border-bottom:1px solid var(--line)}
.acc-btn{
  width:100%;background:transparent;border:0;text-align:left;
  display:flex;align-items:center;justify-content:space-between;gap:20px;
  padding:22px 0 22px 16px;font-size:17px;font-weight:600;color:var(--ink);
  cursor:pointer;position:relative;line-height:1.6;
}
.acc-btn::before{
  content:"";position:absolute;left:0;top:14px;bottom:14px;width:3px;background:var(--neon);
  opacity:0;transition:opacity .2s ease;
}
.acc-btn[aria-expanded="true"]::before{opacity:1}
.acc-icon{
  width:22px;height:22px;flex-shrink:0;position:relative;transition:transform .26s ease;
}
.acc-icon::before,.acc-icon::after{
  content:"";position:absolute;background:var(--ink);border-radius:2px;
}
.acc-icon::before{left:0;right:0;top:10px;height:2px}
.acc-icon::after{top:0;bottom:0;left:10px;width:2px;transition:transform .26s ease}
.acc-btn[aria-expanded="true"] .acc-icon{transform:rotate(180deg)}
.acc-btn[aria-expanded="true"] .acc-icon::after{transform:scaleY(0)}
.acc-panel{max-height:0;overflow:hidden;transition:max-height .26s ease}
.acc-panel-inner{padding:0 40px 24px 16px;font-size:15px;line-height:1.85;color:var(--muted)}

/* ---------- CTA / form ---------- */
.cta-block{
  display:grid;grid-template-columns:minmax(0,6fr) minmax(0,6fr);gap:56px;
  padding:56px;border-radius:var(--r-l);
  background:var(--ink);color:#fff;border:1px solid var(--line-dark);
  position:relative;overflow:hidden;
}
.cta-block::before{
  content:"";position:absolute;left:-30%;top:-60%;width:70%;height:200%;
  background:radial-gradient(circle,rgba(200,255,61,.16) 0%,rgba(200,255,61,0) 62%);
  animation:breathe 6s ease-in-out infinite;
}
@keyframes breathe{0%,100%{opacity:.55}50%{opacity:1}}
.cta-block > *{position:relative;z-index:1}
.cta-list{margin-top:26px;display:flex;flex-direction:column;gap:14px}
.cta-list li{display:flex;gap:12px;align-items:flex-start;font-size:15px;color:rgba(255,255,255,.8)}
.cta-list li::before{content:"✓";color:var(--neon);font-weight:800;flex-shrink:0}
.form-mk{display:flex;flex-direction:column;gap:16px}
.form-row{display:flex;flex-direction:column;gap:8px}
.form-row label{font-size:14px;font-weight:600;color:rgba(255,255,255,.82)}
.form-mk .form-control,.form-mk .form-select{
  height:46px;border-radius:var(--r-s);border:1px solid rgba(255,255,255,.16);
  background:rgba(255,255,255,.05);color:#fff;font-size:15px;padding:0 14px;
  transition:border-color .2s ease,box-shadow .2s ease;
}
.form-mk .form-control::placeholder{color:rgba(255,255,255,.38)}
.form-mk .form-control:focus,.form-mk .form-select:focus{
  background:rgba(255,255,255,.08);border-color:var(--neon);
  box-shadow:0 0 0 1px var(--neon),0 0 18px rgba(200,255,61,.28);color:#fff;outline:none;
}
.form-mk .form-select option{color:#111}
.form-note{font-size:12px;color:rgba(255,255,255,.45);line-height:1.7}
.form-tip{font-size:13px;color:var(--neon);min-height:20px;display:none}
.form-tip.is-on{display:block}

/* ---------- footer ---------- */
.site-footer{background:var(--ink);color:#fff;padding:72px 0 0}
.footer-grid{display:grid;grid-template-columns:minmax(0,4fr) minmax(0,2.4fr) minmax(0,2.4fr) minmax(0,3fr);gap:40px}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:18px}
.footer-desc{font-size:14px;color:rgba(255,255,255,.6);line-height:1.8;max-width:320px}
.footer-social{display:flex;gap:10px;margin-top:22px}
.footer-social span{
  width:38px;height:38px;border-radius:10px;border:1px solid var(--line-dark);
  display:flex;align-items:center;justify-content:center;font-size:12px;
  color:rgba(255,255,255,.7);letter-spacing:.02em;transition:border-color .2s ease,color .2s ease,transform .2s ease;
}
.footer-social span:hover{border-color:var(--neon);color:var(--neon);transform:translateY(-2px)}
.footer-col h4{font-size:13px;letter-spacing:.16em;color:rgba(255,255,255,.5);font-weight:700;margin-bottom:18px}
.footer-col ul{display:flex;flex-direction:column;gap:11px}
.footer-col a{font-size:14px;color:rgba(255,255,255,.75)}
.footer-col a:hover{color:var(--neon)}
.footer-col p{font-size:14px;color:rgba(255,255,255,.62);line-height:1.8}
.footer-bottom{
  margin-top:56px;border-top:1px solid var(--line-dark);
  padding:22px 0;display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;
  font-size:13px;color:rgba(255,255,255,.45);
}

/* ---------- animations ---------- */
.fade-up{opacity:0;transform:translateY(12px);transition:opacity .24s cubic-bezier(.2,.7,.2,1),transform .24s cubic-bezier(.2,.7,.2,1)}
.fade-up.is-in{opacity:1;transform:none}

/* ---------- responsive ---------- */
@media (max-width:1199px){
  .nav-links{gap:20px}
  .nav-link{font-size:14px}
}
@media (max-width:991px){
  .nav-links,.header-cta .btn-mk{display:none}
  .menu-toggle{display:flex}
  .sec{padding:72px 0}
  .hero-inner{grid-template-columns:1fr;gap:40px;padding:64px 0}
  .hero{min-height:auto;background-image:linear-gradient(180deg,rgba(11,12,14,.9) 0%,rgba(11,12,14,.72) 60%,rgba(11,12,14,.92) 100%),url('/assets/images/backpic/back-1.png')}
  .hero-visual{max-width:560px}
  .levels,.faq-grid{grid-template-columns:1fr;gap:32px}
  .levels-aside{position:static}
  .cta-block{grid-template-columns:1fr;padding:36px;gap:32px}
  .pv-big,.pv-sm{grid-column:span 12}
  .posts-grid{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:32px}
}
@media (max-width:575px){
  .container-x{padding:0 20px}
  .sec{padding:48px 0}
  .hero h1{font-size:34px}
  .hero-lead{font-size:16px}
  .hero-stats{gap:28px}
  .hero-stat b{font-size:30px}
  .hero-actions .btn-mk{width:100%}
  .level-row{grid-template-columns:64px minmax(0,1fr);gap:16px;padding:26px 0}
  .level-num{font-size:38px;padding-left:10px}
  .pv-sm{flex-direction:column}
  .pv-sm .card-media{width:100%}
  .pv-sm .card-media img{aspect-ratio:16/9}
  .pv-bar{flex-direction:column;align-items:flex-start;padding:20px}
  .cta-block{padding:26px 20px;border-radius:var(--r-m)}
  .footer-grid{grid-template-columns:1fr}
  .acc-btn{font-size:16px;padding-right:8px}
  .footer-bottom{justify-content:flex-start}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation:none!important;transition:none!important}
  .fade-up{opacity:1;transform:none}
}

/* roulang page: article */
:root{
  --ink:#0B0C0E;
  --ink-soft:#16181C;
  --paper:#F6F5F1;
  --paper-2:#ECEAE3;
  --neon:#C8FF3D;
  --flare:#FF4D2E;
  --muted:#6B6F76;
  --line:rgba(11,12,14,.12);
  --line-dark:rgba(255,255,255,.14);
  --r-s:8px;
  --r-m:14px;
  --r-l:22px;
  --font-cn:'Noto Sans SC','PingFang SC','Microsoft YaHei',sans-serif;
  --font-num:'Barlow Condensed','Arial Narrow',Impact,sans-serif;
  --bs-body-bg:var(--paper);
  --bs-body-color:var(--ink);
  --bs-body-font-family:var(--font-cn);
  --bs-border-radius:var(--r-m);
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  padding-top:64px;
  background:var(--paper);
  color:var(--ink);
  font-family:var(--font-cn);
  font-size:16px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
  -moz-osx-font-smoothing:grayscale;
}
img{max-width:100%;height:auto;display:block;}
a{color:inherit;text-decoration:none;transition:color .2s ease,border-color .2s ease,background-color .2s ease;}
button{font-family:inherit;}
h1,h2,h3,h4,h5,p,ul,ol{margin:0;}
::selection{background:var(--neon);color:var(--ink);}
a:focus-visible,button:focus-visible,input:focus-visible,select:focus-visible,textarea:focus-visible{
  outline:2px solid var(--neon);
  outline-offset:2px;
}
.container-x{width:100%;max-width:1200px;margin:0 auto;padding:0 24px;}

/* ============ 顶部导航 ============ */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:1030;
  background:rgba(11,12,14,.98);
  transition:background-color .3s ease,backdrop-filter .3s ease;
}
.site-header::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:1px;
  background:linear-gradient(90deg,rgba(200,255,61,0),rgba(200,255,61,.35),rgba(200,255,61,0));
}
.site-header.is-scrolled{
  background:rgba(11,12,14,.92);
  -webkit-backdrop-filter:blur(12px);
  backdrop-filter:blur(12px);
}
.header-inner{display:flex;align-items:center;gap:24px;height:64px;}
.brand{display:flex;align-items:center;gap:10px;color:#fff;flex:0 0 auto;}
.brand-mark{
  width:24px;height:24px;border:2px solid var(--neon);border-radius:6px;position:relative;
  box-shadow:0 0 12px rgba(200,255,61,.40);flex:0 0 24px;
}
.brand-mark::after{content:"";position:absolute;inset:5px;background:var(--neon);border-radius:2px;}
.brand-text{display:flex;flex-direction:column;line-height:1.1;}
.brand-main{font-size:17px;font-weight:800;letter-spacing:.02em;}
.brand-sub{font-size:10px;letter-spacing:.18em;color:rgba(255,255,255,.55);text-transform:lowercase;margin-top:2px;}
.nav-links{display:flex;align-items:center;gap:22px;margin-left:auto;}
.nav-link{
  position:relative;font-size:15px;letter-spacing:.02em;color:rgba(255,255,255,.72);
  padding:6px 0;white-space:nowrap;
}
.nav-link::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:2px;background:var(--neon);
  transform:scaleX(0);transform-origin:left;transition:transform .22s ease;
}
.nav-link:hover{color:#fff;}
.nav-link:hover::after{transform:scaleX(1);}
.nav-link.is-active{color:var(--neon);text-shadow:0 0 12px rgba(200,255,61,.45);}
.nav-link.is-active::after{transform:scaleX(1);}
.header-cta{flex:0 0 auto;}
.btn-neon{
  display:inline-flex;align-items:center;justify-content:center;
  height:38px;padding:0 20px;border-radius:10px;border:0;
  background:var(--neon);color:var(--ink);
  font-size:14px;font-weight:700;letter-spacing:.02em;
  transition:background-color .22s ease,transform .22s ease,box-shadow .22s ease,color .22s ease;
}
.btn-neon:hover{background:#D9FF6B;color:var(--ink);transform:translateY(-1px);box-shadow:0 10px 26px rgba(200,255,61,.30);}
.btn-neon:active{transform:translateY(0);box-shadow:none;}
.btn-ghost{
  display:inline-flex;align-items:center;justify-content:center;
  height:46px;padding:0 26px;border-radius:10px;
  border:1px solid var(--line);background:transparent;color:var(--ink);
  font-size:15px;font-weight:600;
  transition:border-color .22s ease,color .22s ease,transform .22s ease;
}
.btn-ghost:hover{border-color:var(--neon);color:#4a6b00;transform:translateY(-1px);}
.btn-solid{
  display:inline-flex;align-items:center;justify-content:center;
  height:46px;padding:0 26px;border-radius:10px;border:0;
  background:var(--ink);color:#fff;font-size:15px;font-weight:700;
  transition:background-color .22s ease,transform .22s ease,box-shadow .22s ease;
}
.btn-solid:hover{background:#22252b;color:#fff;transform:translateY(-1px);box-shadow:0 12px 28px rgba(11,12,14,.18);}
.nav-toggle{
  display:none;flex-direction:column;justify-content:center;gap:5px;
  width:44px;height:44px;padding:0;margin-left:6px;
  background:transparent;border:0;cursor:pointer;
}
.nav-toggle span{display:block;width:22px;height:2px;background:var(--neon);border-radius:2px;transition:transform .22s ease,opacity .22s ease;margin:0 auto;}
.nav-toggle.is-open span:nth-child(1){transform:translateY(7px) rotate(45deg);}
.nav-toggle.is-open span:nth-child(2){opacity:0;}
.nav-toggle.is-open span:nth-child(3){transform:translateY(-7px) rotate(-45deg);}

/* ============ 面包屑 ============ */
.crumb-bar{background:var(--paper-2);border-bottom:1px solid var(--line);}
.crumb-inner{
  display:flex;align-items:center;gap:8px;height:44px;
  font-size:13px;color:var(--muted);white-space:nowrap;overflow:hidden;
}
.crumb-inner a{color:var(--muted);}
.crumb-inner a:hover{color:var(--ink);}
.crumb-sep{color:rgba(11,12,14,.28);}
.crumb-current{
  color:var(--ink);font-weight:600;
  overflow:hidden;text-overflow:ellipsis;max-width:56vw;
}

/* ============ 文章头部 ============ */
.article-hero{background:var(--paper);padding:56px 0 36px;}
.article-hero-inner{max-width:900px;}
.article-eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-family:var(--font-num);font-size:12px;letter-spacing:.18em;text-transform:uppercase;
  color:#4a6b00;margin-bottom:18px;
}
.article-eyebrow::before{content:"";width:22px;height:2px;background:var(--neon);display:block;}
.article-h1{
  font-size:clamp(28px,3.6vw,40px);
  line-height:1.24;font-weight:800;letter-spacing:-.01em;
  margin:0 0 22px;
}
.article-meta{display:flex;flex-wrap:wrap;align-items:center;gap:12px;font-size:13px;color:var(--muted);}
.badge-cat{
  display:inline-flex;align-items:center;height:26px;padding:0 12px;
  border-radius:999px;background:var(--paper-2);border:1px solid var(--line);
  font-size:12px;font-weight:600;letter-spacing:.06em;color:var(--ink);
}
.meta-dot{width:4px;height:4px;border-radius:50%;background:rgba(11,12,14,.25);display:inline-block;}

/* ============ 正文 ============ */
.section-article{background:var(--paper);padding:8px 0 80px;}
.article-body{
  max-width:760px;margin:0 auto;
  font-size:17px;line-height:1.95;color:#1d2025;
  overflow-wrap:break-word;word-break:break-word;
}
.article-body p{margin:0 0 1.4em;}
.article-body h2{
  font-size:24px;line-height:1.4;font-weight:800;color:var(--ink);
  margin:2.2em 0 .9em;padding-left:16px;border-left:4px solid var(--neon);
}
.article-body h3{font-size:20px;line-height:1.45;font-weight:700;color:var(--ink);margin:1.8em 0 .7em;}
.article-body h4{font-size:17px;font-weight:700;color:var(--ink);margin:1.6em 0 .6em;}
.article-body ul,.article-body ol{margin:0 0 1.4em;padding-left:1.35em;}
.article-body li{margin-bottom:.5em;}
.article-body ol{counter-reset:artnum;list-style:none;padding-left:0;}
.article-body ol > li{
  counter-increment:artnum;position:relative;padding-left:40px;margin-bottom:.9em;
}
.article-body ol > li::before{
  content:counter(artnum,decimal-leading-zero);
  position:absolute;left:0;top:0;
  font-family:var(--font-num);font-size:18px;font-weight:700;color:#7aa800;
  line-height:1.7;
}
.article-body blockquote{
  margin:1.8em 0;padding:18px 24px;
  background:var(--paper-2);border-left:3px solid var(--neon);
  border-radius:0 var(--r-m) var(--r-m) 0;color:#33363c;
}
.article-body blockquote p:last-child{margin-bottom:0;}
.article-body img{border-radius:14px;margin:1.8em auto;}
.article-body figure{margin:1.8em 0;}
.article-body figcaption{font-size:12px;color:var(--muted);text-align:center;margin-top:10px;}
.article-body a{color:#3f6b00;text-decoration:underline;text-underline-offset:3px;}
.article-body a:hover{color:var(--ink);}
.article-body table{width:100%;border-collapse:collapse;margin:1.8em 0;font-size:15px;}
.article-body th,.article-body td{padding:14px 16px;border-bottom:1px solid var(--line);text-align:left;vertical-align:top;}
.article-body th{background:var(--paper-2);font-weight:700;}
.article-body tr:hover td{background:rgba(200,255,61,.06);}
.article-body code{
  background:var(--paper-2);border-radius:6px;padding:2px 6px;font-size:14px;
}
.article-body hr{border:0;border-top:1px solid var(--line);margin:2.4em 0;}

.article-foot{
  max-width:760px;margin:52px auto 0;padding-top:32px;
  border-top:1px solid var(--line);
  display:flex;flex-wrap:wrap;gap:14px;
}
.empty-state{
  max-width:760px;margin:0 auto;padding:56px 28px;text-align:center;
  border:1px dashed rgba(200,255,61,.55);border-radius:var(--r-m);
  background:var(--paper-2);
}
.empty-state p{font-size:16px;color:var(--muted);margin-bottom:22px;}

/* ============ 相关指南 ============ */
.rel-section{background:var(--paper-2);padding:72px 0;}
.section-head{margin-bottom:32px;max-width:720px;}
.section-title{font-size:clamp(22px,2.4vw,30px);font-weight:800;line-height:1.25;letter-spacing:-.01em;}
.section-sub{color:var(--muted);font-size:14px;margin-top:10px;}
.rel-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;}
.rel-card{
  display:flex;gap:14px;padding:14px;
  border:1px solid var(--line);border-radius:var(--r-m);background:#fff;
  transition:transform .24s ease,box-shadow .24s ease,border-color .24s ease;
}
.rel-card:hover{
  transform:translateY(-4px);border-color:rgba(200,255,61,.55);
  box-shadow:0 18px 40px rgba(11,12,14,.10);
}
.rel-thumb{flex:0 0 92px;width:92px;height:74px;border-radius:10px;overflow:hidden;background:var(--paper-2);}
.rel-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .32s ease;}
.rel-card:hover .rel-thumb img{transform:scale(1.04);}
.rel-body{min-width:0;display:flex;flex-direction:column;justify-content:center;}
.rel-kicker{
  font-family:var(--font-num);font-size:11px;letter-spacing:.14em;text-transform:uppercase;
  color:#7aa800;margin-bottom:4px;
}
.rel-title{font-size:15px;font-weight:700;line-height:1.5;color:var(--ink);}
.rel-desc{font-size:13px;color:var(--muted);line-height:1.6;margin-top:4px;}

/* ============ 文末 CTA ============ */
.article-cta{background:var(--ink);color:#fff;padding:56px 0;}
.cta-inner{display:flex;align-items:center;justify-content:space-between;gap:28px;flex-wrap:wrap;}
.cta-inner h2{font-size:clamp(20px,2.2vw,26px);font-weight:800;line-height:1.35;}
.cta-inner p{color:rgba(255,255,255,.62);font-size:14px;margin-top:8px;}
.cta-actions{display:flex;gap:12px;flex-wrap:wrap;}
.btn-onDark{
  display:inline-flex;align-items:center;justify-content:center;
  height:46px;padding:0 26px;border-radius:10px;border:1px solid rgba(255,255,255,.35);
  background:transparent;color:#fff;font-size:15px;font-weight:600;
  transition:border-color .22s ease,color .22s ease,transform .22s ease;
}
.btn-onDark:hover{border-color:var(--neon);color:var(--neon);transform:translateY(-1px);}

/* ============ 页脚 ============ */
.site-footer{background:var(--ink);color:rgba(255,255,255,.75);padding:72px 0 0;}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.3fr;gap:40px;padding-bottom:56px;}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:18px;color:#fff;}
.footer-desc{font-size:14px;line-height:1.8;color:rgba(255,255,255,.60);max-width:330px;}
.footer-social{display:flex;gap:10px;margin-top:18px;flex-wrap:wrap;}
.footer-social span{
  font-size:12px;padding:5px 12px;border:1px solid var(--line-dark);
  border-radius:999px;color:rgba(255,255,255,.70);
}
.footer-col h4{
  font-size:13px;font-weight:600;letter-spacing:.16em;
  color:rgba(255,255,255,.50);margin:0 0 16px;
}
.footer-col ul{list-style:none;padding:0;margin:0;}
.footer-col li{margin-bottom:10px;}
.footer-col a{font-size:14px;color:rgba(255,255,255,.75);}
.footer-col a:hover{color:var(--neon);}
.footer-col p{font-size:14px;line-height:1.8;color:rgba(255,255,255,.60);}
.footer-bottom{
  display:flex;justify-content:space-between;align-items:center;gap:16px;flex-wrap:wrap;
  border-top:1px solid var(--line-dark);padding:22px 0 28px;
  font-size:13px;color:rgba(255,255,255,.50);
}

/* ============ 响应式 ============ */
@media (max-width:1199px){
  .container-x{padding:0 24px;}
  .rel-grid{gap:16px;}
  .rel-thumb{flex:0 0 80px;width:80px;height:66px;}
}
@media (max-width:991px){
  body{padding-top:56px;}
  .header-inner{height:56px;gap:16px;}
  .nav-toggle{display:flex;}
  .nav-links{
    position:fixed;left:0;right:0;top:56px;bottom:0;
    flex-direction:column;align-items:stretch;gap:0;
    margin:0;padding:20px 24px 40px;
    background:rgba(11,12,14,.98);
    -webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);
    transform:translateX(100%);transition:transform .3s cubic-bezier(.2,.7,.2,1);
    overflow-y:auto;
  }
  .nav-links.is-open{transform:translateX(0);}
  .nav-link{
    font-size:20px;padding:18px 0 18px 14px;width:100%;
    border-bottom:1px solid var(--line-dark);
  }
  .nav-link::after{display:none;}
  .nav-link.is-active{box-shadow:inset 3px 0 0 var(--neon);}
  .header-cta{margin-left:auto;height:36px;padding:0 16px;font-size:13px;}
  .article-hero{padding:44px 0 30px;}
  .rel-grid{grid-template-columns:repeat(2,1fr);}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
  .rel-section{padding:56px 0;}
  .article-cta{padding:48px 0;}
}
@media (max-width:767px){
  .container-x{padding:0 20px;}
  .article-body{font-size:16px;line-height:1.9;}
  .article-body h2{font-size:21px;margin-top:1.9em;}
  .article-body h3{font-size:18px;}
  .article-body table{display:block;overflow-x:auto;-webkit-overflow-scrolling:touch;white-space:nowrap;}
  .article-body th,.article-body td{white-space:normal;min-width:120px;}
  .crumb-current{max-width:44vw;}
  .section-article{padding-bottom:56px;}
  .rel-grid{grid-template-columns:1fr;}
  .site-footer{padding-top:56px;}
  .footer-grid{padding-bottom:40px;}
  .cta-inner{flex-direction:column;align-items:flex-start;}
}
@media (max-width:575px){
  .article-h1{font-size:26px;}
  .brand-main{font-size:15px;}
  .brand-sub{font-size:9px;letter-spacing:.14em;}
  .header-cta{display:none;}
  .article-foot{flex-direction:column;}
  .article-foot .btn-neon,.article-foot .btn-ghost{width:100%;}
  .cta-actions{width:100%;}
  .cta-actions .btn-neon,.cta-actions .btn-onDark{width:100%;}
  .footer-grid{grid-template-columns:1fr;gap:28px;}
  .footer-bottom{font-size:12px;}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation-duration:.001ms !important;transition-duration:.001ms !important;scroll-behavior:auto !important;}
}

/* roulang page: category1 */
:root{
  --ink:#0B0C0E;
  --ink-soft:#16181C;
  --paper:#F6F5F1;
  --paper-2:#ECEAE3;
  --neon:#C8FF3D;
  --neon-soft:rgba(200,255,61,.08);
  --flare:#FF4D2E;
  --muted:#6B6F76;
  --line:rgba(11,12,14,.12);
  --line-dark:rgba(255,255,255,.14);
  --r-s:8px;
  --r-m:14px;
  --r-l:22px;
  --shadow-s:0 2px 8px rgba(11,12,14,.04);
  --shadow-m:0 18px 40px rgba(11,12,14,.10);
  --shadow-neon:0 10px 26px rgba(200,255,61,.30);
  --container:1200px;
  --font-cn:'Noto Sans SC','PingFang SC','Microsoft YaHei',sans-serif;
  --font-num:'Barlow Condensed','Arial Narrow',Impact,sans-serif;
}

*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  padding-top:64px;
  font-family:var(--font-cn);
  font-size:16px;
  line-height:1.85;
  color:var(--ink);
  background:var(--paper);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;transition:color .2s ease;}
a:focus-visible,button:focus-visible,input:focus-visible,select:focus-visible,textarea:focus-visible{
  outline:2px solid var(--neon);
  outline-offset:2px;
  border-radius:4px;
}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4,p{margin:0;}
button{font-family:inherit;cursor:pointer;border:0;background:none;color:inherit;}
::selection{background:var(--neon);color:var(--ink);}

.container-x{
  width:100%;
  max-width:var(--container);
  margin:0 auto;
  padding-left:24px;
  padding-right:24px;
}

/* ---------- header ---------- */
.site-header{
  position:fixed;
  top:0;left:0;right:0;
  z-index:1000;
  height:64px;
  background:rgba(11,12,14,.98);
  transition:background .3s ease,backdrop-filter .3s ease;
}
.site-header::after{
  content:"";
  position:absolute;
  left:0;right:0;bottom:0;
  height:1px;
  background:linear-gradient(90deg,rgba(200,255,61,0),rgba(200,255,61,.55),rgba(200,255,61,0));
}
.site-header.is-scrolled{
  background:rgba(11,12,14,.92);
  backdrop-filter:blur(12px);
  -webkit-backdrop-filter:blur(12px);
}
.header-inner{
  height:100%;
  display:flex;
  align-items:center;
  gap:28px;
}
.brand{
  display:flex;
  align-items:center;
  gap:12px;
  flex-shrink:0;
}
.brand-mark{
  width:24px;height:24px;
  border:1.5px solid var(--neon);
  border-radius:6px;
  position:relative;
  display:inline-block;
  box-shadow:0 0 14px rgba(200,255,61,.35);
}
.brand-mark::after{
  content:"";
  position:absolute;
  inset:6px;
  background:var(--neon);
  border-radius:2px;
}
.brand-text{display:flex;flex-direction:column;line-height:1.15;}
.brand-main{
  font-size:17px;
  font-weight:800;
  color:#fff;
  letter-spacing:.02em;
}
.brand-sub{
  font-size:10px;
  letter-spacing:.18em;
  color:rgba(255,255,255,.55);
  text-transform:uppercase;
  margin-top:3px;
}
.nav-links{
  display:flex;
  align-items:center;
  gap:26px;
  margin-left:8px;
}
.nav-link{
  position:relative;
  font-size:15px;
  letter-spacing:.02em;
  color:rgba(255,255,255,.72);
  padding:6px 0;
  white-space:nowrap;
}
.nav-link::after{
  content:"";
  position:absolute;
  left:0;right:0;bottom:-8px;
  height:2px;
  background:var(--neon);
  transform:scaleX(0);
  transform-origin:left center;
  transition:transform .2s ease;
}
.nav-link:hover{color:#fff;}
.nav-link:hover::after{transform:scaleX(1);}
.nav-link.is-active{
  color:#fff;
  text-shadow:0 0 12px rgba(200,255,61,.45);
}
.nav-link.is-active::after{transform:scaleX(1);}
.header-right{
  margin-left:auto;
  display:flex;
  align-items:center;
  gap:12px;
}
.btn-cta{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  height:38px;
  padding:0 20px;
  border-radius:10px;
  background:var(--neon);
  color:var(--ink);
  font-size:14px;
  font-weight:700;
  letter-spacing:.02em;
  transition:transform .2s ease,background .2s ease,box-shadow .2s ease;
}
.btn-cta:hover{
  background:#D9FF6B;
  transform:translateY(-1px);
  box-shadow:var(--shadow-neon);
  color:var(--ink);
}
.btn-cta:active{transform:translateY(0);box-shadow:none;}
.nav-toggle{
  display:none;
  width:44px;height:44px;
  align-items:center;
  justify-content:center;
  border-radius:10px;
  border:1px solid var(--line-dark);
}
.nav-toggle span{
  display:block;
  width:18px;height:2px;
  background:#fff;
  position:relative;
}
.nav-toggle span::before,
.nav-toggle span::after{
  content:"";
  position:absolute;
  left:0;
  width:18px;height:2px;
  background:#fff;
}
.nav-toggle span::before{top:-6px;}
.nav-toggle span::after{top:6px;}

/* ---------- banner ---------- */
.page-banner{
  position:relative;
  min-height:270px;
  display:flex;
  align-items:flex-end;
  padding:56px 0 46px;
  color:#fff;
  background-image:url('/assets/images/backpic/back-2.png');
  background-size:cover;
  background-position:center;
  background-repeat:no-repeat;
  overflow:hidden;
}
.page-banner::before{
  content:"";
  position:absolute;
  inset:0;
  background:linear-gradient(90deg,rgba(11,12,14,.94) 0%,rgba(11,12,14,.78) 46%,rgba(11,12,14,.42) 100%);
}
.page-banner .container-x{position:relative;z-index:2;}
.crumb{
  display:flex;
  align-items:center;
  gap:8px;
  font-size:12.5px;
  color:rgba(255,255,255,.6);
  margin-bottom:20px;
  flex-wrap:wrap;
}
.crumb a{color:rgba(255,255,255,.6);}
.crumb a:hover{color:var(--neon);}
.crumb .sep{color:rgba(255,255,255,.3);}
.crumb .cur{color:rgba(255,255,255,.9);}
.banner-badge{
  display:inline-flex;
  align-items:center;
  gap:8px;
  padding:5px 14px;
  border-radius:999px;
  background:rgba(200,255,61,.14);
  border:1px solid rgba(200,255,61,.4);
  color:var(--neon);
  font-size:12px;
  letter-spacing:.12em;
  margin-bottom:16px;
}
.page-banner h1{
  font-size:clamp(30px,3.6vw,50px);
  font-weight:800;
  line-height:1.12;
  letter-spacing:-.02em;
  max-width:900px;
}
.page-banner p{
  margin-top:16px;
  max-width:680px;
  font-size:16px;
  color:rgba(255,255,255,.72);
  line-height:1.8;
}

/* ---------- sections ---------- */
.section{padding:96px 0;}
.section--tight{padding:72px 0;}
.section--paper2{background:var(--paper-2);}
.section--ink{
  background:var(--ink);
  color:#fff;
}
.sec-head{margin-bottom:44px;max-width:760px;}
.eyebrow{
  display:inline-block;
  font-size:12px;
  letter-spacing:.18em;
  text-transform:uppercase;
  color:var(--muted);
  margin-bottom:14px;
  font-weight:700;
}
.section--ink .eyebrow{color:rgba(255,255,255,.5);}
.sec-title{
  font-size:clamp(26px,2.9vw,38px);
  font-weight:800;
  line-height:1.2;
  letter-spacing:-.01em;
}
.sec-desc{
  margin-top:14px;
  font-size:15.5px;
  color:var(--muted);
  max-width:640px;
}
.section--ink .sec-desc{color:rgba(255,255,255,.62);}

/* ---------- status cards ---------- */
.status-grid{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:24px;
}
.status-card{
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--r-m);
  padding:30px 26px;
  box-shadow:var(--shadow-s);
  transition:transform .28s ease,border-color .28s ease,box-shadow .28s ease;
  position:relative;
  overflow:hidden;
}
.status-card::before{
  content:"";
  position:absolute;
  left:0;top:0;
  width:100%;height:3px;
  background:var(--neon);
  transform:scaleX(0);
  transform-origin:left;
  transition:transform .28s ease;
}
.status-card:hover{
  transform:translateY(-4px);
  border-color:rgba(200,255,61,.55);
  box-shadow:var(--shadow-m);
}
.status-card:hover::before{transform:scaleX(1);}
.status-num{
  font-family:var(--font-num);
  font-size:40px;
  line-height:1;
  font-weight:700;
  color:var(--ink);
  opacity:.9;
  margin-bottom:16px;
}
.status-card h3{
  font-size:19px;
  font-weight:700;
  margin-bottom:10px;
}
.status-card p{
  font-size:14.5px;
  color:var(--muted);
  line-height:1.8;
}

/* ---------- steps ---------- */
.steps{
  position:relative;
  max-width:920px;
}
.step{
  display:grid;
  grid-template-columns:96px 1fr;
  gap:26px;
  padding:26px 0;
  position:relative;
}
.step:not(:last-child)::after{
  content:"";
  position:absolute;
  left:47px;
  top:84px;
  bottom:-6px;
  border-left:1px dashed rgba(255,255,255,.18);
}
.step-num{
  font-family:var(--font-num);
  font-size:52px;
  line-height:1;
  font-weight:700;
  color:var(--neon);
  text-align:center;
  opacity:.92;
  letter-spacing:.02em;
}
.step-body h3{
  font-size:21px;
  font-weight:700;
  line-height:1.4;
  margin-bottom:8px;
}
.step-body p{
  font-size:15px;
  line-height:1.85;
  color:rgba(255,255,255,.66);
}
.step-body .step-tip{
  display:inline-block;
  margin-top:10px;
  font-size:12.5px;
  letter-spacing:.1em;
  color:var(--neon);
  border:1px solid rgba(200,255,61,.35);
  background:rgba(200,255,61,.08);
  border-radius:999px;
  padding:3px 12px;
}

/* ---------- table ---------- */
.table-scroll{
  overflow-x:auto;
  -webkit-overflow-scrolling:touch;
  border-radius:var(--r-m);
}
.table-x{
  width:100%;
  min-width:680px;
  border-collapse:collapse;
  background:#fff;
  border-radius:var(--r-m);
  overflow:hidden;
  border:1px solid var(--line);
}
.table-x thead th{
  background:var(--paper-2);
  font-size:12.5px;
  font-weight:700;
  letter-spacing:.12em;
  color:var(--muted);
  text-align:left;
  padding:15px 20px;
  border-bottom:1px solid var(--line);
  white-space:nowrap;
}
.table-x td{
  padding:18px 20px;
  font-size:15px;
  line-height:1.75;
  border-bottom:1px solid var(--line);
  vertical-align:top;
}
.table-x tbody tr:last-child td{border-bottom:0;}
.table-x tbody tr{transition:background .2s ease;}
.table-x tbody tr:hover{background:rgba(200,255,61,.08);}
.table-x td:first-child{font-weight:700;}
.table-x td .tag-mini{
  display:inline-block;
  font-size:12px;
  padding:2px 10px;
  border-radius:999px;
  background:var(--paper-2);
  color:var(--ink);
  letter-spacing:.06em;
}

/* ---------- security block ---------- */
.secure-wrap{
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--r-l);
  padding:36px;
  box-shadow:var(--shadow-s);
}
.secure-figure{
  border-radius:var(--r-m);
  overflow:hidden;
  position:relative;
  height:100%;
  min-height:280px;
}
.secure-figure img{
  width:100%;
  height:100%;
  object-fit:cover;
  transition:transform .32s ease;
}
.secure-wrap:hover .secure-figure img{transform:scale(1.04);}
.secure-list{margin-top:8px;}
.secure-list li{
  display:flex;
  gap:14px;
  padding:16px 0;
  border-bottom:1px solid var(--line);
  font-size:15px;
  line-height:1.8;
  color:var(--muted);
}
.secure-list li:last-child{border-bottom:0;}
.secure-list strong{
  display:block;
  color:var(--ink);
  font-size:16.5px;
  font-weight:700;
  margin-bottom:4px;
}
.check-dot{
  flex-shrink:0;
  width:22px;height:22px;
  border-radius:50%;
  background:var(--neon-soft);
  border:1px solid rgba(200,255,61,.55);
  display:inline-flex;
  align-items:center;
  justify-content:center;
  margin-top:4px;
}
.check-dot::after{
  content:"";
  width:8px;height:8px;
  border-radius:50%;
  background:var(--neon);
}

/* ---------- FAQ ---------- */
.faq-wrap{
  max-width:900px;
  margin:0 auto;
}
.accordion-x .accordion-item{
  background:transparent;
  border:0;
  border-bottom:1px solid var(--line);
}
.accordion-x .accordion-item:first-child{border-top:1px solid var(--line);}
.accordion-x .accordion-button{
  background:transparent;
  color:var(--ink);
  font-family:var(--font-cn);
  font-size:17px;
  font-weight:700;
  line-height:1.6;
  padding:22px 44px 22px 18px;
  box-shadow:none;
  transition:color .2s ease,background .2s ease;
}
.accordion-x .accordion-button:not(.collapsed){
  color:var(--ink);
  background:rgba(200,255,61,.08);
  box-shadow:inset 3px 0 0 var(--neon);
}
.accordion-x .accordion-button:focus{
  box-shadow:inset 3px 0 0 var(--neon);
  outline:2px solid var(--neon);
  outline-offset:-2px;
}
.accordion-x .accordion-button::after{
  background-image:none;
  width:10px;height:10px;
  border-right:2px solid var(--ink);
  border-bottom:2px solid var(--ink);
  transform:rotate(45deg) translateY(-2px);
  transition:transform .26s ease;
  margin-right:8px;
}
.accordion-x .accordion-button:not(.collapsed)::after{
  transform:rotate(-135deg) translateY(-2px);
}
.accordion-x .accordion-body{
  padding:0 44px 24px 18px;
  font-size:15px;
  line-height:1.85;
  color:var(--muted);
}

/* ---------- jump bar ---------- */
.jump-bar{
  background:var(--ink-soft);
  border:1px solid var(--line-dark);
  border-radius:var(--r-l);
  padding:28px 34px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:24px;
  flex-wrap:wrap;
}
.jump-bar .jump-text strong{
  display:block;
  color:#fff;
  font-size:19px;
  font-weight:800;
  margin-bottom:6px;
}
.jump-bar .jump-text span{
  font-size:14px;
  color:rgba(255,255,255,.6);
}
.btn-primary-x{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  height:48px;
  padding:0 28px;
  border-radius:10px;
  background:var(--neon);
  color:var(--ink);
  font-size:15px;
  font-weight:700;
  letter-spacing:.02em;
  transition:transform .2s ease,background .2s ease,box-shadow .2s ease;
  white-space:nowrap;
}
.btn-primary-x:hover{
  background:#D9FF6B;
  transform:translateY(-1px);
  box-shadow:var(--shadow-neon);
  color:var(--ink);
}
.btn-primary-x:active{transform:translateY(0);box-shadow:none;}
.btn-ghost-x{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  height:48px;
  padding:0 26px;
  border-radius:10px;
  border:1px solid rgba(255,255,255,.35);
  color:rgba(255,255,255,.85);
  font-size:15px;
  font-weight:600;
  transition:border-color .2s ease,color .2s ease,transform .2s ease;
  white-space:nowrap;
}
.btn-ghost-x:hover{
  border-color:var(--neon);
  color:var(--neon);
  transform:translateY(-1px);
}

/* ---------- footer ---------- */
.site-footer{
  background:var(--ink);
  color:rgba(255,255,255,.75);
  padding:72px 0 0;
  margin-top:0;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.5fr 1fr 1fr 1.3fr;
  gap:44px;
  padding-bottom:52px;
}
.footer-brand{
  display:flex;
  align-items:center;
  gap:12px;
  margin-bottom:18px;
}
.footer-desc{
  font-size:14px;
  line-height:1.85;
  color:rgba(255,255,255,.6);
  max-width:320px;
}
.footer-social{
  display:flex;
  gap:10px;
  margin-top:22px;
  flex-wrap:wrap;
}
.footer-social span{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  height:32px;
  padding:0 14px;
  border-radius:999px;
  border:1px solid var(--line-dark);
  font-size:12.5px;
  color:rgba(255,255,255,.65);
  transition:border-color .2s ease,color .2s ease;
}
.footer-social span:hover{
  border-color:var(--neon);
  color:var(--neon);
}
.footer-col h4{
  font-size:13px;
  letter-spacing:.16em;
  color:rgba(255,255,255,.5);
  font-weight:700;
  margin-bottom:18px;
}
.footer-col ul li{margin-bottom:12px;}
.footer-col ul li a{
  font-size:14px;
  color:rgba(255,255,255,.75);
}
.footer-col ul li a:hover{color:var(--neon);}
.footer-col p{
  font-size:13.5px;
  line-height:1.85;
  color:rgba(255,255,255,.58);
}
.footer-bottom{
  border-top:1px solid var(--line-dark);
  padding:22px 0 26px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  flex-wrap:wrap;
  font-size:13px;
  color:rgba(255,255,255,.5);
}

/* ---------- animation ---------- */
.fade-up{
  opacity:0;
  transform:translateY(12px);
  transition:opacity .24s cubic-bezier(.2,.7,.2,1),transform .24s cubic-bezier(.2,.7,.2,1);
}
.fade-up.is-visible{opacity:1;transform:translateY(0);}

/* ---------- responsive ---------- */
@media (max-width:1199px){
  .nav-links{gap:20px;}
  .nav-link{font-size:14px;}
  .footer-grid{grid-template-columns:1.4fr 1fr 1fr;gap:36px;}
}
@media (max-width:991px){
  body{padding-top:56px;}
  .site-header{height:56px;}
  .nav-toggle{display:inline-flex;}
  .nav-links{
    position:fixed;
    top:56px;left:0;right:0;bottom:0;
    background:rgba(11,12,14,.98);
    backdrop-filter:blur(10px);
    flex-direction:column;
    align-items:stretch;
    gap:0;
    padding:18px 24px 40px;
    margin:0;
    transform:translateX(100%);
    transition:transform .3s cubic-bezier(.2,.7,.2,1);
    overflow-y:auto;
  }
  .nav-links.is-open{transform:translateX(0);}
  .nav-link{
    font-size:20px;
    padding:16px 0 16px 14px;
    border-bottom:1px solid var(--line-dark);
  }
  .nav-link::after{display:none;}
  .nav-link.is-active{
    box-shadow:inset 3px 0 0 var(--neon);
    text-shadow:0 0 12px rgba(200,255,61,.45);
  }
  .header-right .btn-cta{display:none;}
  .section{padding:72px 0;}
  .section--tight{padding:56px 0;}
  .status-grid{grid-template-columns:1fr;gap:18px;}
  .step{grid-template-columns:72px 1fr;gap:18px;}
  .step-num{font-size:42px;}
  .step:not(:last-child)::after{left:35px;top:72px;}
  .secure-wrap{padding:26px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
  .footer-desc{max-width:100%;}
}
@media (max-width:767px){
  .page-banner{padding:44px 0 38px;min-height:230px;}
  .page-banner p{font-size:15px;}
  .section{padding:56px 0;}
  .section--tight{padding:44px 0;}
  .sec-head{margin-bottom:32px;}
  .jump-bar{padding:24px;flex-direction:column;align-items:flex-start;}
  .jump-bar .btn-primary-x{width:100%;}
  .accordion-x .accordion-button{font-size:16px;padding:18px 40px 18px 14px;}
  .accordion-x .accordion-body{padding:0 24px 20px 14px;}
  .footer-grid{grid-template-columns:1fr;gap:28px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
}
@media (max-width:575px){
  .container-x{padding-left:20px;padding-right:20px;}
  .page-banner h1{font-size:30px;}
  .sec-title{font-size:26px;}
  .brand-main{font-size:16px;}
  .brand-sub{font-size:9px;letter-spacing:.14em;}
  .step{grid-template-columns:56px 1fr;gap:14px;}
  .step-num{font-size:34px;}
  .step:not(:last-child)::after{left:27px;top:62px;}
  .step-body h3{font-size:18px;}
  .table-x{min-width:600px;}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{
    animation-duration:.001ms !important;
    animation-iteration-count:1 !important;
    transition-duration:.001ms !important;
  }
  .fade-up{opacity:1;transform:none;}
}

/* roulang page: category2 */
:root{
  --ink:#0B0C0E;
  --ink-soft:#16181C;
  --paper:#F6F5F1;
  --paper-2:#ECEAE3;
  --neon:#C8FF3D;
  --flare:#FF4D2E;
  --muted:#6B6F76;
  --line:rgba(11,12,14,.12);
  --line-dark:rgba(255,255,255,.14);
  --r-s:8px;
  --r-m:14px;
  --r-l:22px;
  --shadow-card:0 2px 8px rgba(11,12,14,.04);
  --shadow-hover:0 18px 40px rgba(11,12,14,.10);
  --container:1200px;
  --font-sans:'Noto Sans SC','PingFang SC','Microsoft YaHei',sans-serif;
  --font-disp:'Barlow Condensed','Arial Narrow',Impact,sans-serif;
}

*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:var(--font-sans);
  background:var(--paper);
  color:var(--ink);
  font-size:16px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;transition:color .2s ease;}
a:hover{color:inherit;}
button{font-family:inherit;}
h1,h2,h3,h4,p,ul,ol,figure{margin:0;}
ul,ol{padding:0;list-style:none;}
:focus-visible{outline:2px solid var(--neon);outline-offset:3px;border-radius:4px;}

.container-x{
  width:100%;
  max-width:var(--container);
  margin:0 auto;
  padding:0 24px;
}

/* ---------- Header ---------- */
.site-header{
  position:sticky;
  top:0;
  z-index:100;
  background:#0B0C0E;
  transition:background .25s ease,backdrop-filter .25s ease,box-shadow .25s ease;
}
.site-header::after{
  content:"";
  position:absolute;
  left:0;right:0;bottom:0;
  height:1px;
  background:linear-gradient(90deg,rgba(200,255,61,0) 0%,rgba(200,255,61,.35) 50%,rgba(200,255,61,0) 100%);
}
.site-header.is-scrolled{
  background:rgba(11,12,14,.92);
  backdrop-filter:blur(12px);
  -webkit-backdrop-filter:blur(12px);
}
.header-inner{
  display:flex;
  align-items:center;
  gap:28px;
  height:64px;
}
.brand{
  display:inline-flex;
  align-items:center;
  gap:12px;
  flex:none;
}
.brand-mark{
  width:24px;height:24px;
  border:2px solid var(--neon);
  border-radius:6px;
  position:relative;
  box-shadow:0 0 12px rgba(200,255,61,.45);
  flex:none;
}
.brand-mark::after{
  content:"";
  position:absolute;
  inset:5px;
  background:var(--neon);
  border-radius:2px;
  opacity:.9;
}
.brand-text{display:flex;flex-direction:column;line-height:1.1;}
.brand-main{
  font-size:17px;
  font-weight:800;
  letter-spacing:.02em;
  color:#fff;
}
.brand-sub{
  font-size:10px;
  letter-spacing:.18em;
  color:rgba(255,255,255,.55);
  margin-top:2px;
}
.nav-links{
  display:flex;
  align-items:center;
  gap:6px;
  margin-left:8px;
  flex:1 1 auto;
}
.nav-link{
  position:relative;
  display:inline-block;
  padding:8px 12px;
  font-size:15px;
  letter-spacing:.02em;
  color:rgba(255,255,255,.72);
  white-space:nowrap;
  transition:color .2s ease;
}
.nav-link::after{
  content:"";
  position:absolute;
  left:12px;right:12px;bottom:2px;
  height:2px;
  background:var(--neon);
  transform:scaleX(0);
  transform-origin:left center;
  transition:transform .2s ease;
}
.nav-link:hover{color:#fff;}
.nav-link:hover::after{transform:scaleX(1);}
.nav-link.is-active{
  color:var(--neon);
  text-shadow:0 0 12px rgba(200,255,61,.45);
}
.nav-link.is-active::after{transform:scaleX(1);}
.header-actions{
  display:flex;
  align-items:center;
  gap:12px;
  margin-left:auto;
  flex:none;
}
.nav-toggle{
  display:none;
  width:44px;height:44px;
  border:1px solid rgba(255,255,255,.2);
  background:transparent;
  border-radius:10px;
  position:relative;
  cursor:pointer;
  transition:border-color .2s ease;
}
.nav-toggle:hover{border-color:var(--neon);}
.nav-toggle span{
  position:absolute;
  left:12px;right:12px;
  height:2px;
  background:#fff;
  transition:transform .25s ease,opacity .25s ease;
}
.nav-toggle span:nth-child(1){top:15px;}
.nav-toggle span:nth-child(2){top:21px;}
.nav-toggle span:nth-child(3){top:27px;}
.nav-toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(6px) rotate(45deg);}
.nav-toggle[aria-expanded="true"] span:nth-child(2){opacity:0;}
.nav-toggle[aria-expanded="true"] span:nth-child(3){transform:translateY(-6px) rotate(-45deg);}

/* ---------- Buttons ---------- */
.btn-mk{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  height:48px;
  padding:0 28px;
  border-radius:10px;
  font-size:15px;
  font-weight:700;
  letter-spacing:.02em;
  border:1px solid transparent;
  cursor:pointer;
  transition:transform .2s ease,background .2s ease,box-shadow .2s ease,border-color .2s ease,color .2s ease;
  white-space:nowrap;
}
.btn-neon{
  background:var(--neon);
  border-color:var(--neon);
  color:var(--ink);
}
.btn-neon:hover{
  background:#D9FF6B;
  color:var(--ink);
  transform:translateY(-1px);
  box-shadow:0 10px 26px rgba(200,255,61,.30);
}
.btn-neon:active{transform:translateY(0);box-shadow:none;}
.btn-ghost{
  background:transparent;
  border:1px solid rgba(255,255,255,.35);
  color:#fff;
}
.btn-ghost:hover{
  border-color:var(--neon);
  color:var(--neon);
  transform:translateY(-1px);
}
.btn-ghost-dark{
  background:transparent;
  border:1px solid var(--line);
  color:var(--ink);
}
.btn-ghost-dark:hover{
  border-color:var(--neon);
  color:var(--ink);
  background:rgba(200,255,61,.10);
  transform:translateY(-1px);
}
.btn-sm{height:38px;padding:0 18px;font-size:14px;}

/* ---------- Banner ---------- */
.page-banner{
  position:relative;
  overflow:hidden;
  background:var(--ink);
  min-height:272px;
  display:flex;
  align-items:center;
  padding:44px 0;
}
.banner-bg{
  position:absolute;
  inset:0;
  background-size:cover;
  background-position:center;
  opacity:.5;
}
.page-banner::before{
  content:"";
  position:absolute;
  inset:0;
  background:linear-gradient(90deg,rgba(11,12,14,.94) 0%,rgba(11,12,14,.78) 55%,rgba(11,12,14,.45) 100%);
  z-index:1;
}
.banner-inner{position:relative;z-index:2;}
.crumbs{
  display:flex;
  align-items:center;
  flex-wrap:wrap;
  gap:8px;
  font-size:13px;
  color:rgba(255,255,255,.55);
  margin-bottom:16px;
}
.crumbs a{color:rgba(255,255,255,.7);}
.crumbs a:hover{color:var(--neon);}
.crumbs .sep{color:rgba(255,255,255,.28);}
.crumbs .current{color:var(--neon);}
.page-banner h1{
  font-size:clamp(28px,3.6vw,46px);
  font-weight:800;
  line-height:1.14;
  letter-spacing:-.01em;
  color:#fff;
  max-width:900px;
}
.banner-sub{
  margin-top:14px;
  font-size:16px;
  line-height:1.8;
  color:rgba(255,255,255,.72);
  max-width:720px;
}

/* ---------- Stats ---------- */
.zone-stats{
  background:var(--ink);
  padding:0 0 44px;
}
.stats-grid{
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:1px;
  background:var(--line-dark);
  border-top:1px solid var(--line-dark);
}
.stat-item{
  background:var(--ink);
  padding:26px 20px 8px;
}
.stat-num{
  display:block;
  font-family:var(--font-disp);
  font-size:44px;
  font-weight:700;
  line-height:1;
  color:var(--neon);
  letter-spacing:.01em;
}
.stat-num small{
  font-size:18px;
  margin-left:3px;
  letter-spacing:.02em;
}
.stat-label{
  display:block;
  margin-top:10px;
  font-size:13px;
  color:rgba(255,255,255,.58);
  letter-spacing:.04em;
}

/* ---------- Section base ---------- */
.section{padding:96px 0;}
.section-paper2{background:var(--paper-2);}
.sec-head{margin-bottom:42px;}
.sec-kicker{
  display:inline-flex;
  align-items:center;
  gap:8px;
  font-size:12px;
  letter-spacing:.16em;
  color:var(--muted);
  text-transform:uppercase;
  margin-bottom:14px;
}
.sec-kicker::before{
  content:"";
  width:22px;height:2px;
  background:var(--neon);
}
.sec-title{
  font-size:clamp(26px,3vw,38px);
  font-weight:800;
  line-height:1.2;
  letter-spacing:-.01em;
}
.sec-desc{
  margin-top:14px;
  font-size:16px;
  color:var(--muted);
  max-width:680px;
}

/* ---------- Chips ---------- */
.filter-bar{
  display:flex;
  align-items:center;
  flex-wrap:wrap;
  gap:12px;
  margin-bottom:34px;
}
.chip{
  height:42px;
  padding:0 22px;
  border-radius:999px;
  border:1px solid var(--line);
  background:transparent;
  color:var(--ink);
  font-size:14px;
  font-weight:600;
  letter-spacing:.02em;
  cursor:pointer;
  transition:background .2s ease,border-color .2s ease,box-shadow .2s ease,transform .2s ease;
}
.chip:hover{
  border-color:rgba(200,255,61,.75);
  transform:translateY(-1px);
}
.chip.is-active{
  background:var(--neon);
  border-color:var(--neon);
  color:var(--ink);
  box-shadow:0 6px 18px rgba(200,255,61,.28);
}
.filter-count{
  margin-left:auto;
  font-size:13px;
  color:var(--muted);
  letter-spacing:.02em;
}

/* ---------- Zone grid ---------- */
.zone-grid{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:24px;
}
.zone-card{
  position:relative;
  display:flex;
  flex-direction:column;
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--r-m);
  overflow:hidden;
  box-shadow:var(--shadow-card);
  transition:transform .28s ease,border-color .28s ease,box-shadow .28s ease;
}
.zone-card:hover{
  transform:translateY(-4px);
  border-color:rgba(200,255,61,.55);
  box-shadow:var(--shadow-hover);
}
.zone-card.is-hidden{display:none;}
.zone-thumb{
  aspect-ratio:16/9;
  overflow:hidden;
  background:var(--paper-2);
}
.zone-thumb img{
  width:100%;
  height:100%;
  object-fit:cover;
  transition:transform .32s ease;
}
.zone-card:hover .zone-thumb img{transform:scale(1.04);}
.zone-body{
  padding:20px 20px 18px;
  display:flex;
  flex-direction:column;
  gap:10px;
  flex:1 1 auto;
}
.zone-meta{
  display:flex;
  align-items:center;
  gap:10px;
  flex-wrap:wrap;
}
.badge-tag{
  display:inline-flex;
  align-items:center;
  padding:3px 11px;
  border-radius:999px;
  background:var(--paper-2);
  color:var(--ink);
  font-size:12px;
  letter-spacing:.06em;
  font-weight:600;
}
.zone-date{
  font-size:13px;
  color:var(--muted);
}
.zone-title{
  font-size:18px;
  font-weight:700;
  line-height:1.5;
  letter-spacing:0;
  color:var(--ink);
}
.zone-desc{
  font-size:14px;
  color:var(--muted);
  line-height:1.75;
  flex:1 1 auto;
}
.zone-foot{
  display:flex;
  align-items:center;
  justify-content:space-between;
  padding-top:12px;
  border-top:1px solid var(--line);
  font-size:13px;
  color:var(--muted);
}
.zone-arrow{
  width:28px;height:28px;
  border-radius:999px;
  border:1px solid var(--line);
  display:inline-flex;
  align-items:center;
  justify-content:center;
  font-size:13px;
  color:var(--ink);
  transition:background .2s ease,color .2s ease,border-color .2s ease,transform .2s ease;
}
.zone-card:hover .zone-arrow{
  background:var(--neon);
  border-color:var(--neon);
  color:var(--ink);
  transform:translate(2px,-2px);
}
.load-more-wrap{
  display:flex;
  justify-content:center;
  margin-top:44px;
}
.load-more-wrap .btn-mk[disabled]{
  opacity:.45;
  cursor:default;
  transform:none;
  box-shadow:none;
}

/* ---------- Feature split ---------- */
.feature-split{
  display:grid;
  grid-template-columns:5fr 7fr;
  gap:56px;
  align-items:center;
}
.feature-figure{
  border-radius:var(--r-l);
  overflow:hidden;
  border:1px solid var(--line);
  box-shadow:var(--shadow-card);
  position:relative;
}
.feature-figure img{
  width:100%;
  height:100%;
  object-fit:cover;
  aspect-ratio:4/3;
  transition:transform .4s ease;
}
.feature-figure:hover img{transform:scale(1.03);}
.feature-figure figcaption{
  position:absolute;
  left:14px;bottom:14px;
  padding:6px 14px;
  border-radius:999px;
  background:rgba(11,12,14,.78);
  color:#fff;
  font-size:12px;
  letter-spacing:.08em;
}
.feature-body h2{
  font-size:clamp(24px,2.6vw,32px);
  font-weight:800;
  line-height:1.3;
  margin-bottom:16px;
}
.feature-body p{
  font-size:16px;
  color:var(--muted);
  margin-bottom:22px;
}
.feature-list{display:flex;flex-direction:column;gap:0;}
.feature-list li{
  position:relative;
  padding:16px 0 16px 22px;
  border-top:1px solid var(--line);
  font-size:15px;
  color:var(--ink);
  line-height:1.75;
}
.feature-list li:last-child{border-bottom:1px solid var(--line);}
.feature-list li::before{
  content:"";
  position:absolute;
  left:0;top:22px;
  width:3px;height:16px;
  background:var(--neon);
  border-radius:2px;
}
.feature-list li strong{font-weight:700;}
.feature-body .btn-mk{margin-top:28px;}

/* ---------- FAQ ---------- */
.faq-grid{
  display:grid;
  grid-template-columns:4fr 8fr;
  gap:56px;
  align-items:start;
}
.faq-aside h2{
  font-size:clamp(24px,2.6vw,32px);
  font-weight:800;
  line-height:1.3;
  margin-bottom:16px;
}
.faq-aside p{
  font-size:15px;
  color:var(--muted);
}
.faq-acc{background:transparent;}
.faq-acc .accordion-item{
  background:transparent;
  border:none;
  border-top:1px solid var(--line);
  border-radius:0;
}
.faq-acc .accordion-item:last-child{border-bottom:1px solid var(--line);}
.faq-acc .accordion-button{
  background:transparent;
  box-shadow:none;
  border-radius:0;
  border-left:3px solid transparent;
  font-size:17px;
  font-weight:700;
  color:var(--ink);
  line-height:1.6;
  padding:22px 16px 22px 18px;
  transition:border-color .26s ease,color .26s ease,background .26s ease;
}
.faq-acc .accordion-button:not(.collapsed){
  background:rgba(200,255,61,.07);
  color:var(--ink);
  border-left-color:var(--neon);
}
.faq-acc .accordion-button:focus{box-shadow:none;}
.faq-acc .accordion-button:focus-visible{outline:2px solid var(--neon);outline-offset:2px;}
.faq-acc .accordion-button::after{
  background-image:none;
  content:"";
  width:10px;height:10px;
  border-right:2px solid currentColor;
  border-bottom:2px solid currentColor;
  transform:rotate(45deg);
  transition:transform .26s ease;
  margin-left:auto;
  flex:none;
}
.faq-acc .accordion-button:not(.collapsed)::after{
  transform:rotate(225deg);
}
.faq-acc .accordion-body{
  padding:0 16px 24px 21px;
  font-size:15px;
  line-height:1.85;
  color:var(--muted);
}

/* ---------- Jump strip ---------- */
.jump-strip{padding:0 0 96px;}
.jump-inner{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:32px;
  background:var(--ink);
  border-radius:var(--r-l);
  padding:36px 44px;
  position:relative;
  overflow:hidden;
  border:1px solid rgba(255,255,255,.08);
}
.jump-inner::after{
  content:"";
  position:absolute;
  right:-80px;top:-80px;
  width:260px;height:260px;
  border-radius:50%;
  background:radial-gradient(circle,rgba(200,255,61,.20) 0%,rgba(200,255,61,0) 70%);
  pointer-events:none;
}
.jump-text h2{
  font-size:clamp(20px,2.2vw,26px);
  font-weight:800;
  color:#fff;
  line-height:1.35;
}
.jump-text p{
  margin-top:8px;
  font-size:14px;
  color:rgba(255,255,255,.6);
}
.jump-inner .btn-mk{position:relative;z-index:2;flex:none;}

/* ---------- Footer ---------- */
.site-footer{
  background:var(--ink);
  color:rgba(255,255,255,.75);
  padding:72px 0 0;
  border-top:1px solid rgba(255,255,255,.08);
}
.footer-grid{
  display:grid;
  grid-template-columns:1.6fr 1fr 1fr 1.4fr;
  gap:48px;
  padding-bottom:52px;
}
.footer-brand{display:flex;align-items:center;gap:12px;margin-bottom:18px;}
.footer-brand .brand-text{display:flex;flex-direction:column;line-height:1.1;}
.footer-brand .brand-main{font-size:17px;font-weight:800;color:#fff;}
.footer-brand .brand-sub{font-size:10px;letter-spacing:.18em;color:rgba(255,255,255,.55);margin-top:2px;}
.footer-desc{
  font-size:14px;
  line-height:1.85;
  color:rgba(255,255,255,.55);
  max-width:340px;
}
.footer-social{
  display:flex;
  gap:10px;
  margin-top:20px;
  flex-wrap:wrap;
}
.footer-social span{
  display:inline-flex;
  align-items:center;
  height:32px;
  padding:0 14px;
  border-radius:999px;
  border:1px solid rgba(255,255,255,.16);
  font-size:12px;
  letter-spacing:.08em;
  color:rgba(255,255,255,.7);
  transition:border-color .2s ease,color .2s ease;
}
.footer-social span:hover{border-color:var(--neon);color:var(--neon);}
.footer-col h4{
  font-size:13px;
  letter-spacing:.16em;
  color:rgba(255,255,255,.5);
  font-weight:600;
  margin-bottom:18px;
}
.footer-col ul{display:flex;flex-direction:column;gap:12px;}
.footer-col ul a{
  font-size:14px;
  color:rgba(255,255,255,.75);
  transition:color .2s ease;
}
.footer-col ul a:hover{color:var(--neon);}
.footer-col p{
  font-size:14px;
  line-height:1.85;
  color:rgba(255,255,255,.55);
}
.footer-bottom{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  flex-wrap:wrap;
  border-top:1px solid rgba(255,255,255,.12);
  padding:22px 0 26px;
  font-size:13px;
  color:rgba(255,255,255,.45);
}

/* ---------- Reveal ---------- */
.reveal{
  opacity:0;
  transform:translateY(12px);
  transition:opacity .24s cubic-bezier(.2,.7,.2,1),transform .24s cubic-bezier(.2,.7,.2,1);
}
.reveal.is-in{opacity:1;transform:translateY(0);}

/* ---------- Responsive ---------- */
@media (max-width:1199.98px){
  .container-x{max-width:100%;}
}
@media (max-width:991.98px){
  .nav-links{
    position:fixed;
    top:56px;
    left:0;right:0;bottom:0;
    flex-direction:column;
    align-items:flex-start;
    gap:0;
    background:#0B0C0E;
    padding:24px 24px 48px;
    margin-left:0;
    transform:translateX(100%);
    transition:transform .3s ease;
    overflow-y:auto;
    z-index:99;
  }
  .nav-links.is-open{transform:translateX(0);}
  .nav-link{
    width:100%;
    font-size:20px;
    padding:16px 16px;
    border-left:3px solid transparent;
    color:rgba(255,255,255,.82);
  }
  .nav-link::after{display:none;}
  .nav-link.is-active{
    border-left-color:var(--neon);
    background:rgba(200,255,61,.06);
  }
  .nav-toggle{display:inline-block;}
  .header-inner{height:56px;gap:16px;}
  .brand-sub{display:none;}
  .section{padding:72px 0;}
  .feature-split{grid-template-columns:1fr;gap:36px;}
  .faq-grid{grid-template-columns:1fr;gap:32px;}
  .zone-grid{grid-template-columns:repeat(2,1fr);}
  .footer-grid{grid-template-columns:1fr 1fr;gap:36px;}
  .jump-inner{flex-direction:column;align-items:flex-start;padding:32px 28px;}
}
@media (max-width:767.98px){
  .stats-grid{grid-template-columns:repeat(2,1fr);}
  .stat-item{padding:22px 16px 4px;}
  .stat-num{font-size:36px;}
  .page-banner{min-height:240px;padding:36px 0;}
  .banner-sub{font-size:15px;}
  .filter-count{margin-left:0;width:100%;}
  .jump-strip{padding-bottom:72px;}
}
@media (max-width:575.98px){
  .container-x{padding:0 20px;}
  body{font-size:15px;}
  .section{padding:52px 0;}
  .zone-grid{grid-template-columns:1fr;}
  .footer-grid{grid-template-columns:1fr;gap:32px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;gap:8px;}
  .chip{height:40px;padding:0 16px;font-size:13px;}
  .zh-h1-sm{font-size:28px;}
  .sec-title{font-size:24px;}
  .btn-mk{width:100%;}
  .header-actions .btn-mk{width:auto;}
  .load-more-wrap .btn-mk{width:100%;}
  .jump-inner .btn-mk{width:100%;}
  .faq-acc .accordion-button{font-size:16px;padding:18px 12px 18px 14px;}
  .jump-inner{padding:26px 20px;}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{
    animation-duration:.001ms !important;
    animation-iteration-count:1 !important;
    transition-duration:.001ms !important;
    scroll-behavior:auto !important;
  }
  .reveal{opacity:1;transform:none;}
}

/* roulang page: category3 */
:root {
      --ink: #0B0C0E;
      --ink-soft: #16181C;
      --paper: #F6F5F1;
      --paper-2: #ECEAE3;
      --neon: #C8FF3D;
      --flare: #FF4D2E;
      --muted: #6B6F76;
      --line: rgba(11, 12, 14, .12);
      --line-dark: rgba(255, 255, 255, .14);
      --white: #ffffff;
      --r-s: 8px;
      --r-m: 14px;
      --r-l: 22px;
      --container: 1200px;
      --shadow: 0 2px 8px rgba(11, 12, 14, .04);
      --shadow-hover: 0 18px 40px rgba(11, 12, 14, .10);
      --font-body: 'Noto Sans SC', 'PingFang SC', 'Microsoft YaHei', sans-serif;
      --font-display: 'Barlow Condensed', 'Arial Narrow', Impact, sans-serif;
    }

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

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

    body {
      margin: 0;
      font-family: var(--font-body);
      font-size: 16px;
      line-height: 1.75;
      color: var(--ink);
      background: var(--paper);
      -webkit-font-smoothing: antialiased;
      text-rendering: optimizeLegibility;
      overflow-x: hidden;
    }

    body.menu-open {
      overflow: hidden;
    }

    img {
      display: block;
      max-width: 100%;
    }

    a {
      color: inherit;
      text-decoration: none;
      transition: color .2s ease, border-color .2s ease, background-color .2s ease;
    }

    a:hover {
      color: inherit;
    }

    button,
    input,
    select,
    textarea {
      font: inherit;
    }

    button {
      cursor: pointer;
    }

    h1, h2, h3, h4, h5, h6, p {
      margin-top: 0;
    }

    ul, ol {
      margin-top: 0;
    }

    :focus-visible {
      outline: 2px solid var(--neon);
      outline-offset: 3px;
      box-shadow: 0 0 0 4px rgba(11, 12, 14, .12);
    }

    .container-x {
      width: 100%;
      max-width: calc(var(--container) + 48px);
      margin: 0 auto;
      padding-left: 24px;
      padding-right: 24px;
    }

    .section {
      padding: 96px 0;
    }

    .section-tight {
      padding: 72px 0;
    }

    .section-alt {
      background: var(--paper-2);
    }

    .section-dark {
      background: var(--ink);
      color: var(--white);
    }

    .section-dark .section-kicker {
      color: rgba(255, 255, 255, .55);
    }

    .section-dark .section-head h2 {
      color: var(--white);
    }

    .section-dark .section-head p {
      color: rgba(255, 255, 255, .62);
    }

    .section-head {
      display: flex;
      align-items: flex-end;
      justify-content: space-between;
      gap: 36px;
      margin-bottom: 44px;
    }

    .section-head h2 {
      margin: 0;
      font-size: clamp(28px, 3vw, 42px);
      line-height: 1.15;
      font-weight: 800;
      letter-spacing: -.02em;
    }

    .section-head p {
      max-width: 520px;
      margin: 0;
      color: var(--muted);
      font-size: 15px;
      line-height: 1.8;
    }

    .section-kicker {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      margin-bottom: 12px;
      color: var(--muted);
      font-size: 12px;
      font-weight: 600;
      letter-spacing: .14em;
      text-transform: uppercase;
    }

    .section-kicker::before {
      content: "";
      width: 18px;
      height: 2px;
      border-radius: 2px;
      background: var(--neon);
      box-shadow: 0 0 12px rgba(200, 255, 61, .6);
    }

    .btn {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      gap: 8px;
      height: 48px;
      padding: 0 28px;
      border: 1px solid transparent;
      border-radius: 10px;
      font-size: 15px;
      font-weight: 700;
      line-height: 1;
      letter-spacing: .02em;
      text-align: center;
      white-space: nowrap;
      transition: transform .2s ease, background-color .2s ease, color .2s ease, border-color .2s ease, box-shadow .2s ease;
    }

    .btn:active {
      transform: translateY(0) scale(.99);
    }

    .btn-neon {
      background: var(--neon);
      color: var(--ink);
      border-color: var(--neon);
    }

    .btn-neon:hover {
      background: #D9FF6B;
      color: var(--ink);
      transform: translateY(-1px);
      box-shadow: 0 10px 26px rgba(200, 255, 61, .30);
    }

    .btn-ghost {
      background: transparent;
      color: var(--ink);
      border-color: var(--line);
    }

    .btn-ghost:hover {
      color: var(--ink);
      border-color: var(--neon);
      background: rgba(200, 255, 61, .08);
    }

    .btn-ghost-light {
      background: transparent;
      color: var(--white);
      border-color: rgba(255, 255, 255, .30);
    }

    .btn-ghost-light:hover {
      color: var(--neon);
      border-color: var(--neon);
      background: rgba(255, 255, 255, .03);
    }

    .btn-flare {
      background: var(--flare);
      color: var(--white);
      border-color: var(--flare);
    }

    .btn-flare:hover {
      background: #FF6448;
      color: var(--white);
      transform: translateY(-1px);
      box-shadow: 0 10px 26px rgba(255, 77, 46, .24);
    }

    .btn-sm {
      height: 38px;
      padding: 0 18px;
      font-size: 14px;
      border-radius: 10px;
    }

    .site-header {
      position: sticky;
      top: 0;
      z-index: 1000;
      background: var(--ink);
      transition: background-color .25s ease, backdrop-filter .25s ease, box-shadow .25s ease;
    }

    .site-header::after {
      content: "";
      position: absolute;
      left: 0;
      right: 0;
      bottom: 0;
      height: 1px;
      background: linear-gradient(90deg, transparent, rgba(200, 255, 61, .35), transparent);
      pointer-events: none;
    }

    .site-header.is-scrolled {
      background: rgba(11, 12, 14, .92);
      backdrop-filter: blur(12px);
      -webkit-backdrop-filter: blur(12px);
      box-shadow: 0 12px 34px rgba(0, 0, 0, .22);
    }

    .header-inner {
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 28px;
      height: 64px;
    }

    .brand {
      display: inline-flex;
      align-items: center;
      gap: 11px;
      flex-shrink: 0;
    }

    .brand-mark {
      position: relative;
      display: inline-block;
      width: 24px;
      height: 24px;
      border: 2px solid var(--neon);
      border-radius: 6px;
      box-shadow: 0 0 14px rgba(200, 255, 61, .30);
      flex-shrink: 0;
    }

    .brand-mark::after {
      content: "";
      position: absolute;
      inset: 5px;
      border: 1.5px solid rgba(200, 255, 61, .82);
      border-radius: 2px;
    }

    .brand-text {
      display: flex;
      flex-direction: column;
      line-height: 1.08;
    }

    .brand-main {
      color: var(--white);
      font-size: 17px;
      font-weight: 800;
      letter-spacing: .02em;
    }

    .brand-sub {
      margin-top: 3px;
      color: rgba(255, 255, 255, .55);
      font-size: 10px;
      letter-spacing: .18em;
      text-transform: uppercase;
    }

    .nav-links {
      display: flex;
      align-items: center;
      gap: 22px;
      margin-left: auto;
    }

    .nav-link {
      position: relative;
      display: inline-flex;
      align-items: center;
      padding: 22px 0;
      color: rgba(255, 255, 255, .72);
      font-size: 15px;
      letter-spacing: .02em;
      white-space: nowrap;
    }

    .nav-link::after {
      content: "";
      position: absolute;
      left: 0;
      right: 0;
      bottom: 14px;
      height: 2px;
      background: var(--neon);
      border-radius: 2px;
      transform: scaleX(0);
      transform-origin: left;
      transition: transform .2s ease;
    }

    .nav-link:hover,
    .nav-link.is-active {
      color: var(--white);
    }

    .nav-link:hover::after,
    .nav-link.is-active::after {
      transform: scaleX(1);
    }

    .nav-link.is-active {
      text-shadow: 0 0 12px rgba(200, 255, 61, .45);
    }

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

    .nav-toggle {
      display: none;
      width: 44px;
      height: 44px;
      padding: 0;
      border: 1px solid rgba(255, 255, 255, .18);
      border-radius: 10px;
      background: transparent;
      align-items: center;
      justify-content: center;
      flex-direction: column;
      gap: 5px;
      transition: border-color .2s ease, background-color .2s ease;
    }

    .nav-toggle:hover {
      border-color: var(--neon);
      background: rgba(255, 255, 255, .03);
    }

    .nav-toggle span {
      display: block;
      width: 18px;
      height: 2px;
      border-radius: 2px;
      background: var(--white);
    }

    .mobile-drawer {
      position: fixed;
      top: 0;
      right: 0;
      bottom: 0;
      z-index: 1200;
      width: min(86vw, 360px);
      padding: 22px;
      overflow-y: auto;
      background: var(--ink);
      box-shadow: -20px 0 60px rgba(0, 0, 0, .35);
      transform: translateX(100%);
      transition: transform .3s cubic-bezier(.2, .7, .2, 1);
    }

    .mobile-drawer.is-open {
      transform: translateX(0);
    }

    .drawer-head {
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 16px;
      margin-bottom: 26px;
    }

    .drawer-close {
      width: 44px;
      height: 44px;
      border: 1px solid var(--line-dark);
      border-radius: 10px;
      background: transparent;
      color: var(--white);
      font-size: 22px;
      line-height: 1;
    }

    .drawer-close:hover {
      border-color: var(--neon);
      color: var(--neon);
    }

    .drawer-nav {
      display: grid;
      gap: 4px;
    }

    .drawer-link {
      display: block;
      padding: 14px 14px;
      border-left: 3px solid transparent;
      border-radius: 0 8px 8px 0;
      color: rgba(255, 255, 255, .78);
      font-size: 20px;
      transition: color .2s ease, background-color .2s ease, border-color .2s ease;
    }

    .drawer-link:hover,
    .drawer-link.is-active {
      color: var(--white);
      background: rgba(255, 255, 255, .04);
      border-left-color: var(--neon);
    }

    .drawer-cta {
      margin-top: 28px;
    }

    .drawer-note {
      margin-top: 20px;
      color: rgba(255, 255, 255, .40);
      font-size: 12px;
      line-height: 1.7;
    }

    .drawer-backdrop {
      position: fixed;
      inset: 0;
      z-index: 1100;
      background: rgba(0, 0, 0, .55);
      backdrop-filter: blur(2px);
      opacity: 0;
      visibility: hidden;
      transition: opacity .25s ease, visibility .25s ease;
    }

    .drawer-backdrop.is-open {
      opacity: 1;
      visibility: visible;
    }

    .page-banner {
      position: relative;
      min-height: 280px;
      padding: 58px 0;
      overflow: hidden;
      color: var(--white);
      background: var(--ink);
    }

    .banner-bg {
      position: absolute;
      inset: 0;
      background-size: cover;
      background-position: center;
      opacity: .42;
      filter: saturate(.85);
    }

    .page-banner::before {
      content: "";
      position: absolute;
      inset: 0;
      z-index: 1;
      background: linear-gradient(90deg, rgba(11, 12, 14, .95), rgba(11, 12, 14, .72) 52%, rgba(11, 12, 14, .38));
    }

    .banner-inner {
      position: relative;
      z-index: 2;
      max-width: 900px;
    }

    .breadcrumbs {
      display: flex;
      flex-wrap: wrap;
      align-items: center;
      gap: 8px;
      margin-bottom: 22px;
      color: rgba(255, 255, 255, .55);
      font-size: 13px;
    }

    .breadcrumbs a {
      color: rgba(255, 255, 255, .60);
    }

    .breadcrumbs a:hover {
      color: var(--neon);
    }

    .eyebrow {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      padding: 7px 12px;
      margin-bottom: 18px;
      border: 1px solid rgba(200, 255, 61, .38);
      border-radius: 999px;
      color: var(--neon);
      font-size: 12px;
      font-weight: 600;
      letter-spacing: .10em;
      background: rgba(200, 255, 61, .07);
    }

    .page-banner h1 {
      max-width: 840px;
      margin: 0 0 16px;
      color: var(--white);
      font-size: clamp(34px, 4.6vw, 56px);
      font-weight: 900;
      line-height: 1.08;
      letter-spacing: -.02em;
    }

    .banner-sub {
      max-width: 760px;
      margin: 0 0 24px;
      color: rgba(255, 255, 255, .72);
      font-size: 17px;
      line-height: 1.85;
    }

    .banner-meta {
      display: flex;
      flex-wrap: wrap;
      gap: 8px;
    }

    .banner-meta span {
      display: inline-flex;
      align-items: center;
      min-height: 32px;
      padding: 6px 12px;
      border: 1px solid rgba(255, 255, 255, .16);
      border-radius: 999px;
      color: rgba(255, 255, 255, .72);
      font-size: 12.5px;
      background: rgba(255, 255, 255, .05);
    }

    .steps-wrap {
      position: relative;
      max-width: 860px;
      margin: 0 auto;
    }

    .step-item {
      position: relative;
      display: grid;
      grid-template-columns: 110px 1fr;
      gap: 24px;
      margin-bottom: 26px;
    }

    .step-item:last-child {
      margin-bottom: 0;
    }

    .step-item:not(:last-child)::after {
      content: "";
      position: absolute;
      left: 54px;
      top: 100%;
      width: 0;
      height: 26px;
      border-left: 1px dashed rgba(11, 12, 14, .26);
    }

    .step-num {
      position: relative;
      display: flex;
      align-items: flex-start;
      padding: 8px 0 0 16px;
      font-family: var(--font-display);
      font-size: 64px;
      font-weight: 800;
      line-height: .9;
      color: var(--ink);
    }

    .step-num::before {
      content: "";
      position: absolute;
      left: 0;
      top: 10px;
      bottom: 10px;
      width: 3px;
      border-radius: 2px;
      background: var(--neon);
      box-shadow: 0 0 12px rgba(200, 255, 61, .36);
    }

    .step-card {
      height: 100%;
      padding: 26px 30px;
      border: 1px solid var(--line);
      border-radius: var(--r-l);
      background: var(--white);
      box-shadow: var(--shadow);
      transition: transform .24s ease, border-color .24s ease, box-shadow .24s ease;
    }

    .step-card:hover {
      transform: translateY(-2px);
      border-color: rgba(200, 255, 61, .55);
      box-shadow: var(--shadow-hover);
    }

    .step-card h3 {
      margin: 0 0 8px;
      font-size: 22px;
      font-weight: 700;
      line-height: 1.3;
    }

    .step-card p {
      margin: 0;
      color: var(--muted);
      font-size: 15.5px;
      line-height: 1.85;
    }

    .check-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 20px;
    }

    .check-card {
      height: 100%;
      padding: 26px 22px;
      border: 1px solid var(--line);
      border-radius: var(--r-m);
      background: var(--white);
      box-shadow: var(--shadow);
      transition: transform .24s ease, border-color .24s ease, box-shadow .24s ease;
    }

    .check-card:hover {
      transform: translateY(-4px);
      border-color: rgba(200, 255, 61, .55);
      box-shadow: var(--shadow-hover);
    }

    .mini-index {
      display: grid;
      place-items: center;
      width: 34px;
      height: 34px;
      margin-bottom: 18px;
      border-radius: 50%;
      background: var(--ink);
      color: var(--neon);
      font-family: var(--font-display);
      font-size: 18px;
      font-weight: 700;
    }

    .check-card h3 {
      margin: 0 0 8px;
      font-size: 18px;
      font-weight: 700;
      line-height: 1.4;
    }

    .check-card p {
      margin: 0;
      color: var(--muted);
      font-size: 14.5px;
      line-height: 1.8;
    }

    .status-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 20px;
    }

    .status-card {
      height: 100%;
      padding: 28px;
      border: 1px solid var(--line-dark);
      border-radius: var(--r-m);
      background: var(--ink-soft);
      transition: transform .24s ease, border-color .24s ease;
    }

    .status-card:hover {
      transform: translateY(-4px);
      border-color: rgba(200, 255, 61, .55);
    }

    .status-tag {
      display: inline-flex;
      align-items: center;
      padding: 6px 10px;
      margin-bottom: 16px;
      border-radius: 999px;
      background: var(--neon);
      color: var(--ink);
      font-size: 11.5px;
      font-weight: 700;
      letter-spacing: .08em;
    }

    .status-tag.warn {
      background: var(--flare);
      color: var(--white);
    }

    .status-card h3 {
      margin: 0 0 10px;
      color: var(--white);
      font-size: 20px;
      font-weight: 700;
      line-height: 1.4;
    }

    .status-card p {
      margin: 0;
      color: rgba(255, 255, 255, .62);
      font-size: 15px;
      line-height: 1.8;
    }

    .split {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 48px;
      align-items: center;
    }

    .split-copy h2 {
      margin: 0 0 14px;
      font-size: clamp(28px, 3vw, 40px);
      font-weight: 800;
      line-height: 1.18;
      letter-spacing: -.02em;
    }

    .split-copy > p {
      margin-bottom: 0;
      color: var(--muted);
      font-size: 16px;
      line-height: 1.85;
    }

    .feature-list {
      display: grid;
      gap: 14px;
      margin: 24px 0 30px;
      padding: 0;
      list-style: none;
    }

    .feature-list li {
      position: relative;
      padding-left: 32px;
      color: var(--ink);
      font-size: 15.5px;
      line-height: 1.8;
    }

    .feature-list li::before {
      content: "✓";
      position: absolute;
      left: 0;
      top: .34em;
      display: grid;
      place-items: center;
      width: 20px;
      height: 20px;
      border-radius: 50%;
      background: var(--neon);
      color: var(--ink);
      font-size: 12px;
      font-weight: 800;
      line-height: 1;
    }

    .split-media img {
      width: 100%;
      aspect-ratio: 4 / 3;
      object-fit: cover;
      border: 1px solid var(--line);
      border-radius: var(--r-l);
      box-shadow: 0 20px 44px rgba(11, 12, 14, .12);
    }

    .faq-grid {
      display: grid;
      grid-template-columns: 4fr 8fr;
      gap: 56px;
      align-items: start;
    }

    .faq-side h2 {
      margin: 0 0 12px;
      font-size: clamp(28px, 3vw, 40px);
      font-weight: 800;
      line-height: 1.18;
      letter-spacing: -.02em;
    }

    .faq-side p {
      margin: 0;
      color: var(--muted);
      font-size: 15px;
      line-height: 1.8;
    }

    .faq-accordion .accordion-item {
      border: 0;
      border-bottom: 1px solid var(--line);
      border-radius: 0;
      background: transparent;
    }

    .faq-accordion .accordion-header {
      margin: 0;
    }

    .faq-accordion .accordion-button {
      position: relative;
      display: flex;
      align-items: center;
      width: 100%;
      padding: 22px 44px 22px 0;
      border: 0;
      border-radius: 0;
      background: transparent;
      box-shadow: none;
      color: var(--ink);
      font-size: 17px;
      font-weight: 600;
      line-height: 1.5;
      transition: padding .22s ease, color .22s ease, border-color .22s ease;
    }

    .faq-accordion .accordion-button:not(.collapsed) {
      padding-left: 18px;
      border-left: 3px solid var(--neon);
      color: var(--ink);
      background: transparent;
      box-shadow: none;
    }

    .faq-accordion .accordion-button:focus {
      box-shadow: none;
      outline: none;
    }

    .faq-accordion .accordion-button:focus-visible {
      outline: 2px solid var(--neon);
      outline-offset: 3px;
    }

    .faq-accordion .accordion-button::after {
      content: "";
      position: absolute;
      top: 50%;
      right: 12px;
      width: 9px;
      height: 9px;
      margin-top: -6px;
      border-right: 2px solid var(--ink);
      border-bottom: 2px solid var(--ink);
      background-image: none;
      transform: rotate(45deg);
      transition: transform .26s ease;
    }

    .faq-accordion .accordion-button:not(.collapsed)::after {
      transform: rotate(-135deg);
    }

    .faq-accordion .accordion-body {
      padding: 0 44px 24px 18px;
      color: var(--muted);
      font-size: 15px;
      line-height: 1.85;
    }

    .cta-strip-wrap {
      padding: 0 0 96px;
    }

    .cta-strip {
      position: relative;
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 24px;
      padding: 28px 34px;
      overflow: hidden;
      border: 1px solid rgba(255, 255, 255, .10);
      border-radius: var(--r-l);
      background: var(--ink);
      color: var(--white);
    }

    .cta-strip::after {
      content: "";
      position: absolute;
      top: -90px;
      right: -50px;
      width: 250px;
      height: 250px;
      border-radius: 50%;
      background: radial-gradient(circle, rgba(200, 255, 61, .24), transparent 66%);
      pointer-events: none;
    }

    .cta-strip h2 {
      margin: 0 0 6px;
      color: var(--white);
      font-size: 24px;
      font-weight: 700;
      line-height: 1.3;
    }

    .cta-strip p {
      margin: 0;
      color: rgba(255, 255, 255, .62);
      font-size: 14.5px;
      line-height: 1.75;
    }

    .cta-actions {
      position: relative;
      z-index: 1;
      display: flex;
      flex-wrap: wrap;
      gap: 12px;
      flex-shrink: 0;
    }

    .site-footer {
      padding: 72px 0 0;
      border-top: 1px solid rgba(255, 255, 255, .08);
      background: var(--ink);
      color: var(--white);
    }

    .footer-grid {
      display: grid;
      grid-template-columns: 1.5fr 1fr 1fr 1.4fr;
      gap: 40px;
      padding-bottom: 52px;
    }

    .footer-brand {
      display: flex;
      align-items: center;
      gap: 12px;
      margin-bottom: 18px;
    }

    .footer-desc {
      max-width: 320px;
      margin: 0;
      color: rgba(255, 255, 255, .58);
      font-size: 14px;
      line-height: 1.8;
    }

    .footer-social {
      display: flex;
      flex-wrap: wrap;
      gap: 8px;
      margin-top: 20px;
    }

    .footer-social span {
      padding: 6px 12px;
      border: 1px solid var(--line-dark);
      border-radius: 999px;
      color: rgba(255, 255, 255, .66);
      font-size: 12px;
    }

    .footer-col h4 {
      margin: 0 0 18px;
      color: rgba(255, 255, 255, .48);
      font-size: 12.5px;
      font-weight: 600;
      letter-spacing: .16em;
      text-transform: uppercase;
    }

    .footer-col ul {
      display: grid;
      gap: 11px;
      margin: 0;
      padding: 0;
      list-style: none;
    }

    .footer-col a {
      color: rgba(255, 255, 255, .76);
      font-size: 14px;
    }

    .footer-col a:hover {
      color: var(--neon);
    }

    .footer-col p {
      margin: 0;
      color: rgba(255, 255, 255, .55);
      font-size: 14px;
      line-height: 1.8;
    }

    .footer-bottom {
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 16px;
      padding: 22px 0;
      border-top: 1px solid var(--line-dark);
      color: rgba(255, 255, 255, .42);
      font-size: 13px;
    }

    .reveal {
      opacity: 0;
      transform: translateY(12px);
      transition: opacity .24s cubic-bezier(.2, .7, .2, 1), transform .24s cubic-bezier(.2, .7, .2, 1);
    }

    .reveal.is-visible {
      opacity: 1;
      transform: translateY(0);
    }

    .stagger > .reveal:nth-child(2) {
      transition-delay: .06s;
    }

    .stagger > .reveal:nth-child(3) {
      transition-delay: .12s;
    }

    .stagger > .reveal:nth-child(4) {
      transition-delay: .18s;
    }

    @media (max-width: 1199.98px) {
      .nav-links {
        gap: 16px;
      }

      .nav-link {
        font-size: 14px;
      }

      .footer-grid {
        grid-template-columns: 1.4fr 1fr 1fr 1.3fr;
        gap: 28px;
      }
    }

    @media (max-width: 991.98px) {
      .nav-links {
        display: none;
      }

      .nav-toggle {
        display: flex;
      }

      .section {
        padding: 72px 0;
      }

      .section-tight {
        padding: 60px 0;
      }

      .check-grid {
        grid-template-columns: repeat(2, 1fr);
      }

      .status-grid {
        grid-template-columns: 1fr;
      }

      .split {
        grid-template-columns: 1fr;
        gap: 32px;
      }

      .faq-grid {
        grid-template-columns: 1fr;
        gap: 28px;
      }

      .footer-grid {
        grid-template-columns: 1fr 1fr;
        gap: 36px;
      }

      .cta-strip-wrap {
        padding-bottom: 72px;
      }
    }

    @media (max-width: 767.98px) {
      .header-actions .btn-neon {
        display: none;
      }

      .section-head {
        flex-direction: column;
        align-items: flex-start;
        gap: 12px;
        margin-bottom: 34px;
      }

      .step-item {
        grid-template-columns: 74px 1fr;
        gap: 12px;
      }

      .step-num {
        padding-left: 12px;
        font-size: 48px;
      }

      .step-item:not(:last-child)::after {
        left: 36px;
      }

      .step-card {
        padding: 22px;
      }

      .step-card h3 {
        font-size: 20px;
      }

      .cta-strip {
        flex-direction: column;
        align-items: flex-start;
      }

      .footer-bottom {
        flex-direction: column;
        align-items: flex-start;
      }
    }

    @media (max-width: 575.98px) {
      .container-x {
        padding-left: 20px;
        padding-right: 20px;
      }

      .header-inner {
        height: 56px;
      }

      .section {
        padding: 48px 0;
      }

      .section-tight {
        padding: 48px 0;
      }

      .page-banner {
        padding: 46px 0;
      }

      .page-banner h1 {
        font-size: 34px;
      }

      .banner-sub {
        font-size: 15.5px;
      }

      .check-grid {
        grid-template-columns: 1fr;
      }

      .step-item {
        grid-template-columns: 1fr;
        gap: 8px;
      }

      .step-num {
        padding-top: 0;
        font-size: 40px;
      }

      .step-item:not(:last-child)::after {
        display: none;
      }

      .btn {
        width: 100%;
      }

      .cta-actions {
        width: 100%;
      }

      .footer-grid {
        grid-template-columns: 1fr;
      }
    }

    @media (prefers-reduced-motion: reduce) {
      *,
      *::before,
      *::after {
        animation-duration: .01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: .01ms !important;
        scroll-behavior: auto !important;
      }

      .reveal {
        opacity: 1;
        transform: none;
      }
    }

/* roulang page: category4 */
:root{
  --ink:#0B0C0E;
  --ink-soft:#16181C;
  --paper:#F6F5F1;
  --paper-2:#ECEAE3;
  --neon:#C8FF3D;
  --neon-soft:rgba(200,255,61,.12);
  --flare:#FF4D2E;
  --muted:#6B6F76;
  --body-text:#2A2E33;
  --line:rgba(11,12,14,.12);
  --line-dark:rgba(255,255,255,.14);
  --r-s:8px;
  --r-m:14px;
  --r-l:22px;
  --shadow-s:0 2px 8px rgba(11,12,14,.04);
  --shadow-m:0 18px 40px rgba(11,12,14,.10);
  --font-cn:'Noto Sans SC','PingFang SC','Microsoft YaHei',sans-serif;
  --font-num:'Barlow Condensed','Arial Narrow',Impact,sans-serif;
  --sec-y:96px;
  --container:1200px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:var(--font-cn);
  font-size:16px;
  line-height:1.85;
  color:var(--body-text);
  background:var(--paper);
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}
h1,h2,h3,h4,h5,p,ul,ol,figure{margin:0;}
ul,ol{padding:0;list-style:none;}
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;}
button{font-family:inherit;}
::selection{background:var(--neon);color:var(--ink);}
.container-x{width:100%;max-width:var(--container);margin:0 auto;padding:0 24px;}

/* ============ 顶部导航 ============ */
.site-header{
  position:sticky;top:0;z-index:1030;
  background:rgba(11,12,14,.92);
  backdrop-filter:blur(12px);
  -webkit-backdrop-filter:blur(12px);
}
.site-header::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:1px;
  background:linear-gradient(90deg,rgba(200,255,61,0),rgba(200,255,61,.35),rgba(200,255,61,0));
}
.header-inner{display:flex;align-items:center;justify-content:space-between;gap:24px;height:64px;}
.brand{display:flex;align-items:center;gap:10px;flex-shrink:0;}
.brand-mark{
  width:24px;height:24px;border:2px solid var(--neon);border-radius:5px;
  position:relative;display:inline-block;flex-shrink:0;
  box-shadow:0 0 14px rgba(200,255,61,.35);
}
.brand-mark::after{content:"";position:absolute;inset:5px;background:var(--neon);border-radius:1px;}
.brand-text{display:flex;flex-direction:column;line-height:1.05;}
.brand-main{font-size:17px;font-weight:800;color:#fff;letter-spacing:.01em;}
.brand-sub{font-size:10px;letter-spacing:.18em;color:rgba(255,255,255,.55);margin-top:2px;}
.nav-links{display:flex;align-items:center;gap:26px;}
.nav-link{
  position:relative;font-size:15px;color:rgba(255,255,255,.72);
  letter-spacing:.02em;padding:6px 0;transition:color .2s ease;
}
.nav-link::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:2px;
  background:var(--neon);transform:scaleX(0);transform-origin:left;
  transition:transform .2s ease;
}
.nav-link:hover{color:#fff;}
.nav-link:hover::after{transform:scaleX(1);}
.nav-link.is-active{color:var(--neon);text-shadow:0 0 12px rgba(200,255,61,.45);}
.nav-link.is-active::after{transform:scaleX(1);}
.header-actions{display:flex;align-items:center;gap:12px;}
.btn{
  display:inline-flex;align-items:center;justify-content:center;
  height:48px;padding:0 28px;border-radius:10px;border:1px solid transparent;
  font-size:15px;font-weight:700;letter-spacing:.02em;line-height:1;
  cursor:pointer;transition:transform .2s ease,box-shadow .2s ease,background-color .2s ease,color .2s ease,border-color .2s ease;
}
.btn-neon{background:var(--neon);color:var(--ink);}
.btn-neon:hover{background:#D9FF6B;color:var(--ink);transform:translateY(-1px);box-shadow:0 10px 26px rgba(200,255,61,.30);}
.btn-neon:active{transform:translateY(0);box-shadow:0 4px 12px rgba(200,255,61,.24);}
.btn-ghost{background:transparent;border-color:rgba(255,255,255,.35);color:#fff;}
.btn-ghost:hover{border-color:var(--neon);color:var(--neon);transform:translateY(-1px);}
.btn-ghost:active{transform:translateY(0);}
.btn-line{background:transparent;border-color:var(--line);color:var(--ink);}
.btn-line:hover{border-color:var(--neon);color:var(--ink);background:rgba(200,255,61,.10);}
.btn:focus-visible{outline:2px solid var(--neon);outline-offset:2px;box-shadow:none;}
.btn-sm{height:38px;padding:0 20px;font-size:14px;border-radius:10px;}
.nav-toggle{
  display:none;width:44px;height:44px;border:1px solid rgba(255,255,255,.22);
  background:transparent;border-radius:10px;position:relative;cursor:pointer;
}
.nav-toggle span{
  position:absolute;left:12px;right:12px;height:2px;background:#fff;border-radius:2px;
  transition:transform .25s ease,opacity .25s ease;
}
.nav-toggle span:nth-child(1){top:15px;}
.nav-toggle span:nth-child(2){top:21px;}
.nav-toggle span:nth-child(3){top:27px;}
.nav-toggle.open span:nth-child(1){transform:translateY(6px) rotate(45deg);}
.nav-toggle.open span:nth-child(2){opacity:0;}
.nav-toggle.open span:nth-child(3){transform:translateY(-6px) rotate(-45deg);}
.nav-toggle:focus-visible{outline:2px solid var(--neon);outline-offset:2px;}
.mobile-drawer{
  position:fixed;top:0;right:0;width:min(84vw,340px);height:100%;
  background:var(--ink);z-index:1060;padding:88px 24px 32px;overflow-y:auto;
  transform:translateX(100%);transition:transform .3s ease;
  border-left:1px solid var(--line-dark);
}
.mobile-drawer.open{transform:translateX(0);}
.mobile-drawer a{
  display:block;font-size:20px;font-weight:700;color:rgba(255,255,255,.82);
  padding:12px 0 12px 14px;border-left:3px solid transparent;
}
.mobile-drawer a:hover,.mobile-drawer a.is-active{color:var(--neon);border-left-color:var(--neon);}
.mobile-drawer .drawer-cta{margin-top:24px;}
.mobile-drawer .drawer-cta .btn{width:100%;}
.drawer-mask{
  position:fixed;inset:0;background:rgba(11,12,14,.6);z-index:1050;
  opacity:0;visibility:hidden;transition:opacity .3s ease,visibility .3s ease;
}
.drawer-mask.open{opacity:1;visibility:visible;}

/* ============ 页面 Banner ============ */
.page-banner{position:relative;overflow:hidden;background:var(--ink);color:#fff;padding:86px 0 74px;min-height:280px;display:flex;align-items:center;}
.banner-bg{position:absolute;inset:0;background-size:cover;background-position:center;opacity:.62;}
.banner-mask{position:absolute;inset:0;background:linear-gradient(90deg,rgba(11,12,14,.94) 8%,rgba(11,12,14,.52) 62%,rgba(11,12,14,.34) 100%);}
.banner-inner{position:relative;z-index:2;}
.crumb{display:flex;align-items:center;gap:10px;font-size:13px;color:rgba(255,255,255,.55);margin-bottom:22px;}
.crumb a{color:rgba(255,255,255,.55);transition:color .2s ease;}
.crumb a:hover{color:var(--neon);}
.crumb span.sep{opacity:.5;}
.crumb .current{color:rgba(255,255,255,.86);}
.badge-x{
  display:inline-flex;align-items:center;height:28px;padding:0 14px;border-radius:999px;
  font-size:12px;letter-spacing:.12em;font-weight:700;
}
.badge-neon{background:var(--neon);color:var(--ink);}
.badge-dark{background:rgba(255,255,255,.12);color:rgba(255,255,255,.86);border:1px solid var(--line-dark);}
.badge-paper{background:var(--paper-2);color:var(--ink);}
.page-banner h1{
  font-size:clamp(30px,4.2vw,52px);font-weight:800;letter-spacing:-.02em;line-height:1.15;
  margin:20px 0 16px;max-width:900px;
}
.banner-lead{font-size:16px;line-height:1.85;color:rgba(255,255,255,.72);max-width:640px;}
.banner-meta{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:6px;}

/* ============ 通用板块 ============ */
.section{padding:var(--sec-y) 0;}
.section--paper{background:var(--paper);}
.section--paper2{background:var(--paper-2);}
.section--ink{background:var(--ink);color:#fff;}
.sec-head{display:flex;align-items:flex-end;justify-content:space-between;gap:32px;flex-wrap:wrap;margin-bottom:44px;}
.sec-title{font-size:clamp(26px,3vw,38px);font-weight:800;letter-spacing:-.01em;line-height:1.2;}
.sec-desc{font-size:15px;line-height:1.8;color:var(--muted);max-width:520px;}
.section--ink .sec-desc{color:rgba(255,255,255,.62);}
.eyebrow{
  display:inline-block;font-size:12px;letter-spacing:.16em;font-weight:700;
  color:var(--muted);margin-bottom:12px;
}
.section--ink .eyebrow{color:rgba(200,255,61,.85);}

/* ============ 归档筛选胶囊 ============ */
.filter-bar{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:40px;}
.chip{
  height:40px;padding:0 20px;border-radius:999px;border:1px solid var(--line);
  background:#fff;color:var(--ink);font-size:14px;font-weight:500;
  display:inline-flex;align-items:center;cursor:pointer;
  transition:background-color .2s ease,color .2s ease,border-color .2s ease,transform .2s ease;
}
.chip:hover{border-color:rgba(200,255,61,.75);transform:translateY(-1px);}
.chip:focus-visible{outline:2px solid var(--neon);outline-offset:2px;}
.chip.is-active{background:var(--neon);border-color:var(--neon);color:var(--ink);font-weight:700;}

/* ============ 时间轴 ============ */
.timeline{position:relative;}
.tl-item{
  position:relative;display:grid;grid-template-columns:180px 1fr;gap:44px;
  padding:0 0 46px 34px;
}
.tl-item::before{
  content:"";position:absolute;left:6px;top:22px;bottom:-4px;width:1px;background:var(--line);
}
.tl-item:last-child::before{display:none;}
.tl-item::after{
  content:"";position:absolute;left:0;top:12px;width:13px;height:13px;border-radius:50%;
  background:var(--paper);border:2px solid var(--neon);
  box-shadow:0 0 0 4px rgba(200,255,61,.14);
  transition:transform .24s ease,box-shadow .24s ease;
}
.tl-item:hover::after{transform:scale(1.25);box-shadow:0 0 0 6px rgba(200,255,61,.18);}
.tl-date{font-family:var(--font-num);line-height:1;display:flex;flex-direction:column;padding-top:2px;}
.tl-md{font-size:34px;font-weight:600;letter-spacing:.02em;color:var(--ink);}
.tl-year{font-size:13px;font-weight:500;letter-spacing:.14em;color:var(--muted);margin-top:10px;}
.tl-body{padding-top:2px;}
.tl-tags{display:flex;flex-wrap:wrap;align-items:center;gap:10px;margin-bottom:10px;}
.tl-body h3{font-size:21px;font-weight:700;line-height:1.45;color:var(--ink);}
.tl-body p{font-size:15px;line-height:1.85;color:#4A4E55;margin-top:10px;max-width:760px;}
.tag{
  display:inline-flex;align-items:center;height:24px;padding:0 10px;border-radius:999px;
  font-size:12px;font-weight:700;letter-spacing:.06em;
}
.tag-login{background:rgba(200,255,61,.22);color:#3D4E00;}
.tag-vip{background:rgba(255,77,46,.12);color:#B33217;}
.tag-content{background:rgba(11,12,14,.07);color:#3A3E45;}
.tag-version{background:rgba(11,12,14,.07);color:#3A3E45;}

/* ============ 数据条 ============ */
.stat-strip{padding:64px 0;background:var(--ink);color:#fff;}
.stat-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:28px;}
.stat-item{border-left:1px solid var(--line-dark);padding-left:22px;}
.stat-item:first-child{border-left:0;padding-left:0;}
.stat-num{font-family:var(--font-num);font-size:clamp(38px,4vw,52px);line-height:1;color:var(--neon);font-weight:600;}
.stat-num small{font-size:18px;font-weight:500;margin-left:4px;color:rgba(255,255,255,.7);}
.stat-label{font-size:13px;line-height:1.7;color:rgba(255,255,255,.62);margin-top:12px;}

/* ============ 阅读方式（图文 + 行式列表） ============ */
.split{display:grid;grid-template-columns:5fr 7fr;gap:56px;align-items:start;}
.split-media{position:relative;border-radius:var(--r-l);overflow:hidden;border:1px solid var(--line);background:var(--paper-2);}
.split-media img{width:100%;height:100%;object-fit:cover;aspect-ratio:4/3;transition:transform .32s ease;}
.split-media:hover img{transform:scale(1.04);}
.split-content h2{font-size:clamp(24px,2.6vw,34px);font-weight:800;line-height:1.25;color:var(--ink);letter-spacing:-.01em;}
.split-content .lead{font-size:15px;line-height:1.85;color:var(--muted);margin-top:14px;max-width:520px;}
.rows{margin-top:32px;border-top:1px solid var(--line);}
.row-item{display:grid;grid-template-columns:84px 1fr;gap:24px;padding:26px 0;border-bottom:1px solid var(--line);}
.row-num{
  font-family:var(--font-num);font-size:44px;line-height:1;font-weight:600;
  color:var(--neon);-webkit-text-stroke:1.4px rgba(11,12,14,.82);
}
.row-item h3{font-size:18px;font-weight:700;color:var(--ink);line-height:1.5;}
.row-item p{font-size:14px;line-height:1.85;color:#4A4E55;margin-top:8px;}

/* ============ FAQ ============ */
.faq-wrap{display:grid;grid-template-columns:4fr 8fr;gap:56px;align-items:start;}
.faq-aside h2{font-size:clamp(24px,2.6vw,34px);font-weight:800;line-height:1.25;color:var(--ink);letter-spacing:-.01em;}
.faq-aside p{font-size:15px;line-height:1.85;color:var(--muted);margin-top:16px;max-width:320px;}
.accordion-x .accordion-item{background:transparent;border:0;border-top:1px solid var(--line);}
.accordion-x .accordion-item:last-child{border-bottom:1px solid var(--line);}
.accordion-x .accordion-button{
  position:relative;background:transparent;border:0;box-shadow:none;
  padding:22px 48px 22px 20px;font-size:17px;font-weight:600;color:var(--ink);
  line-height:1.6;border-radius:0;
}
.accordion-x .accordion-button::before{
  content:"";position:absolute;left:0;top:18px;bottom:18px;width:3px;border-radius:3px;
  background:var(--neon);opacity:0;transition:opacity .26s ease;
}
.accordion-x .accordion-button:not(.collapsed){color:var(--ink);background:transparent;box-shadow:none;}
.accordion-x .accordion-button:not(.collapsed)::before{opacity:1;}
.accordion-x .accordion-button::after{
  content:"";position:absolute;right:12px;top:50%;width:11px;height:11px;
  margin:0;background-image:none;border-right:2px solid var(--ink);border-bottom:2px solid var(--ink);
  transform:translateY(-70%) rotate(45deg);transition:transform .26s ease;
}
.accordion-x .accordion-button:not(.collapsed)::after{transform:translateY(-30%) rotate(-135deg);}
.accordion-x .accordion-button:focus{box-shadow:none;outline:2px solid var(--neon);outline-offset:-2px;}
.accordion-x .accordion-body{
  padding:0 48px 26px 20px;font-size:15px;line-height:1.85;color:#4A4E55;
}

/* ============ 跳转条 ============ */
.convert-strip{
  background:var(--ink);color:#fff;padding:56px 0;position:relative;
  border-top:1px solid rgba(200,255,61,.22);
}
.convert-strip::before{
  content:"";position:absolute;left:0;right:0;top:0;height:1px;
  background:linear-gradient(90deg,rgba(200,255,61,0),rgba(200,255,61,.55),rgba(200,255,61,0));
}
.convert-inner{display:flex;align-items:center;justify-content:space-between;gap:40px;flex-wrap:wrap;}
.convert-inner h2{font-size:clamp(22px,2.4vw,30px);font-weight:800;line-height:1.3;color:#fff;letter-spacing:-.01em;}
.convert-inner p{font-size:15px;line-height:1.8;color:rgba(255,255,255,.66);margin-top:10px;max-width:560px;}
.convert-actions{display:flex;gap:14px;flex-wrap:wrap;}

/* ============ 页脚 ============ */
.site-footer{background:var(--ink);color:rgba(255,255,255,.75);padding:72px 0 0;}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.4fr;gap:48px;padding-bottom:56px;}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:18px;}
.footer-brand .brand-main{font-size:20px;font-weight:800;color:#fff;}
.footer-brand .brand-sub{font-size:10px;letter-spacing:.18em;color:rgba(255,255,255,.55);}
.footer-desc{font-size:14px;line-height:1.85;color:rgba(255,255,255,.62);max-width:340px;}
.footer-social{display:flex;gap:10px;margin-top:22px;}
.footer-social span{
  display:inline-flex;align-items:center;justify-content:center;height:32px;padding:0 14px;
  border:1px solid var(--line-dark);border-radius:999px;font-size:12px;letter-spacing:.1em;
  color:rgba(255,255,255,.72);transition:border-color .2s ease,color .2s ease;
}
.footer-social span:hover{border-color:var(--neon);color:var(--neon);}
.footer-col h4{font-size:13px;letter-spacing:.16em;color:rgba(255,255,255,.5);font-weight:700;margin-bottom:18px;}
.footer-col ul li{margin-bottom:10px;}
.footer-col a{font-size:14px;color:rgba(255,255,255,.75);transition:color .2s ease;}
.footer-col a:hover{color:var(--neon);}
.footer-col p{font-size:14px;line-height:1.85;color:rgba(255,255,255,.62);}
.footer-bottom{
  border-top:1px solid var(--line-dark);padding:22px 0 26px;
  display:flex;align-items:center;justify-content:space-between;gap:20px;flex-wrap:wrap;
  font-size:13px;color:rgba(255,255,255,.5);
}

/* ============ 入场动效 ============ */
@media (prefers-reduced-motion: no-preference){
  .js-anim .fade-up{opacity:0;transform:translateY(12px);transition:opacity .24s cubic-bezier(.2,.7,.2,1),transform .24s cubic-bezier(.2,.7,.2,1);}
  .js-anim .fade-up.in{opacity:1;transform:none;}
}
@media (prefers-reduced-motion: reduce){
  *,*::before,*::after{animation-duration:.001ms !important;transition-duration:.001ms !important;}
  html{scroll-behavior:auto;}
}

/* ============ 响应式 ============ */
@media (max-width:1199px){
  .split,.faq-wrap{gap:40px;}
}
@media (max-width:991px){
  :root{--sec-y:72px;}
  .nav-links{display:none;}
  .nav-toggle{display:block;}
  .header-actions .btn-sm{display:none;}
  .split{grid-template-columns:1fr;}
  .faq-wrap{grid-template-columns:1fr;}
  .stat-grid{grid-template-columns:repeat(2,1fr);gap:32px;}
  .stat-item:nth-child(3){border-left:0;padding-left:0;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:40px;}
  .tl-item{grid-template-columns:140px 1fr;gap:30px;}
  .page-banner{padding:64px 0 56px;}
}
@media (max-width:767px){
  :root{--sec-y:56px;}
  .container-x{padding:0 20px;}
  .tl-item{grid-template-columns:1fr;gap:12px;padding-left:28px;padding-bottom:38px;}
  .tl-date{flex-direction:row;align-items:baseline;gap:12px;}
  .tl-md{font-size:26px;}
  .tl-year{margin-top:0;}
  .tl-body h3{font-size:19px;}
  .tl-item::after{top:8px;}
  .row-item{grid-template-columns:60px 1fr;gap:18px;}
  .row-num{font-size:34px;}
  .convert-inner{flex-direction:column;align-items:flex-start;}
  .convert-actions{width:100%;}
  .convert-actions .btn{flex:1 1 auto;}
  .footer-grid{grid-template-columns:1fr;gap:36px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;gap:8px;}
  .filter-bar{gap:8px;}
  .chip{height:36px;padding:0 16px;font-size:13px;}
}
@media (max-width:575px){
  h1{font-size:clamp(28px,8vw,36px);}
  .page-banner h1{font-size:clamp(26px,7.4vw,34px);}
  .stat-grid{grid-template-columns:1fr;}
  .stat-item{border-left:0;padding-left:0;border-top:1px solid var(--line-dark);padding-top:22px;}
  .stat-item:first-child{border-top:0;padding-top:0;}
  .btn{width:100%;}
  .header-actions .btn{width:auto;}
  .accordion-x .accordion-button{font-size:16px;padding:18px 42px 18px 18px;}
  .accordion-x .accordion-body{padding:0 42px 22px 18px;}
}