/* roulang page: index */
:root{
  --ink-950:#0A0C10;
  --ink-800:#12161C;
  --paper:#F5F6F2;
  --paper-2:#ECEEE8;
  --neon:#C8F94A;
  --signal:#FF5A2B;
  --text-1:#14181D;
  --text-2:#5B6470;
  --line:rgba(20,24,29,.10);
  --line-dark:rgba(255,255,255,.12);
  --r-card:18px;
  --r-btn:999px;
  --r-input:12px;
  --r-img:16px;
  --shadow-soft:0 10px 30px rgba(10,12,16,.08);
  --shadow-lift:0 18px 46px rgba(10,12,16,.14);
  --glow:0 0 0 1px rgba(200,249,74,.45),0 14px 42px rgba(200,249,74,.16);
  --ease:cubic-bezier(.22,.61,.36,1);
  --gut:24px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei","Source Han Sans SC","Helvetica Neue",Arial,sans-serif;
  font-size:16.5px;
  line-height:1.85;
  color:var(--text-1);
  background:var(--paper);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border-radius:var(--r-img)}
a{color:inherit;text-decoration:none;transition:color .2s var(--ease),opacity .2s var(--ease)}
a:hover{color:var(--text-1)}
h1,h2,h3,h4{margin:0;color:var(--text-1);letter-spacing:-.01em;font-weight:700;line-height:1.25}
p{margin:0}
ul{margin:0;padding:0;list-style:none}
button,input{font-family:inherit;font-size:inherit}
button{border:0;background:none;cursor:pointer}
:focus-visible{outline:2px solid var(--neon);outline-offset:3px;border-radius:6px}
.container{width:100%;max-width:1240px;margin:0 auto;padding:0 var(--gut)}
.nums{font-variant-numeric:tabular-nums;font-feature-settings:"tnum"}

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(10,12,16,.94);
  border-bottom:1px solid var(--line-dark);
  backdrop-filter:blur(10px);
  transition:padding .25s var(--ease),background .25s var(--ease);
}
.site-header::after{
  content:"";display:block;height:1px;
  background:linear-gradient(90deg,transparent,rgba(200,249,74,.65),transparent);
}
.header-inner{display:flex;align-items:center;gap:20px;min-height:72px}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto}
.brand-mark{
  width:34px;height:34px;border-radius:10px;flex:0 0 auto;
  background:var(--neon);color:#0A0C10;
  display:grid;place-items:center;
  font-weight:800;font-size:13px;letter-spacing:.02em;
  box-shadow:0 0 0 1px rgba(200,249,74,.5);
}
.brand-text{display:flex;flex-direction:column;line-height:1.2}
.brand-name{color:#fff;font-size:15px;font-weight:700;letter-spacing:.01em;white-space:nowrap}
.brand-sub{color:rgba(255,255,255,.5);font-size:11px;letter-spacing:.14em;text-transform:uppercase}
.nav-main{display:flex;align-items:center;gap:6px;margin-left:auto}
.nav-link{
  position:relative;display:inline-block;
  padding:10px 14px;border-radius:var(--r-input);
  color:rgba(255,255,255,.72);font-size:14.5px;font-weight:500;
  transition:color .2s var(--ease),background .2s var(--ease);
}
.nav-link::after{
  content:"";position:absolute;left:50%;bottom:4px;height:2px;width:0;
  background:var(--neon);border-radius:2px;
  transform:translateX(-50%);
  transition:width .24s var(--ease);
}
.nav-link:hover{color:#fff;background:rgba(255,255,255,.06)}
.nav-link:hover::after{width:22px}
.nav-link.is-active{color:var(--neon)}
.nav-link.is-active::after{width:26px;box-shadow:0 0 12px rgba(200,249,74,.7)}
.header-cta{
  margin-left:14px;
}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:12px 24px;border-radius:var(--r-btn);
  font-size:15px;font-weight:700;line-height:1;
  border:1px solid transparent;cursor:pointer;
  transition:transform .2s var(--ease),box-shadow .2s var(--ease),background .2s var(--ease),color .2s var(--ease),border-color .2s var(--ease);
}
.btn-primary{background:var(--neon);color:#0A0C10;box-shadow:0 0 0 1px rgba(200,249,74,.4)}
.btn-primary:hover{color:#0A0C10;transform:translateY(-2px);box-shadow:var(--glow)}
.btn-ghost{background:transparent;color:#fff;border-color:rgba(255,255,255,.32)}
.btn-ghost:hover{color:#fff;border-color:var(--neon);transform:translateY(-2px)}
.btn-dark{background:var(--ink-950);color:#fff}
.btn-dark:hover{color:#fff;transform:translateY(-2px);box-shadow:var(--shadow-lift)}
.btn-sm{padding:9px 18px;font-size:14px}
.burger{
  display:none;margin-left:auto;width:44px;height:44px;border-radius:12px;
  border:1px solid rgba(255,255,255,.2);
  align-items:center;justify-content:center;flex-direction:column;gap:5px;
}
.burger span{display:block;width:18px;height:2px;background:#fff;border-radius:2px;transition:transform .2s var(--ease),opacity .2s var(--ease)}
.burger.is-open span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.burger.is-open span:nth-child(2){opacity:0}
.burger.is-open span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}

/* ---------- hero ---------- */
.hero{
  position:relative;overflow:hidden;
  background:var(--ink-950);
  color:#fff;
  padding:96px 0 88px;
}
.hero-bg{
  position:absolute;inset:0;
  background-image:url('/assets/images/backpic/back-1.webp');
  background-size:cover;background-position:center;
  opacity:.34;
  transform:scale(1.04);
  animation:heroDrift 26s ease-in-out infinite alternate;
}
@keyframes heroDrift{from{transform:scale(1.04) translate3d(0,0,0)}to{transform:scale(1.1) translate3d(-1.5%,-1.5%,0)}}
.hero-grid{
  position:absolute;inset:0;
  background-image:linear-gradient(rgba(255,255,255,.05) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.05) 1px,transparent 1px);
  background-size:64px 64px;
  mask-image:radial-gradient(circle at 70% 30%,#000,transparent 72%);
}
.hero::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(10,12,16,.55) 0%,rgba(10,12,16,.86) 68%,var(--ink-950) 100%);
}
.hero-inner{position:relative;z-index:2}
.hero-copy{max-width:820px}
.eyebrow{
  display:inline-flex;align-items:center;gap:10px;
  font-size:12px;letter-spacing:.16em;text-transform:uppercase;
  color:var(--neon);font-weight:700;
}
.eyebrow::before{content:"";width:26px;height:2px;background:var(--neon);border-radius:2px;display:inline-block}
.hero h1{
  color:#fff;
  font-size:clamp(34px,5vw,64px);
  font-weight:800;line-height:1.06;letter-spacing:-.02em;
  margin:20px 0 22px;
}
.hero h1 em{font-style:normal;color:var(--neon)}
.hero-lead{color:rgba(255,255,255,.76);font-size:17.5px;max-width:640px}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:32px}
.hero-hint{margin-top:16px;font-size:13.5px;color:rgba(255,255,255,.5)}
.hero-stats{
  position:relative;z-index:2;
  display:grid;grid-template-columns:repeat(4,minmax(0,1fr));
  gap:1px;margin-top:64px;
  background:var(--line-dark);
  border:1px solid var(--line-dark);border-radius:var(--r-card);
  overflow:hidden;
}
.stat{background:rgba(18,22,28,.86);padding:24px 22px}
.stat-num{display:block;font-size:clamp(28px,3.4vw,44px);font-weight:800;color:var(--neon);line-height:1.1}
.stat-label{display:block;margin-top:8px;font-size:13.5px;color:rgba(255,255,255,.62)}

/* ---------- section ---------- */
.section{padding:96px 0}
.section-alt{background:var(--paper-2)}
.section-dark{background:var(--ink-950);color:#fff}
.section-dark h2,.section-dark h3{color:#fff}
.section-dark .section-sub{color:rgba(255,255,255,.68)}
.section+ .section{border-top:1px solid var(--line)}
.section-head{max-width:720px;margin-bottom:44px}
.section-head h2{
  font-size:clamp(26px,3.4vw,40px);font-weight:700;line-height:1.2;
  margin:16px 0 14px;letter-spacing:-.015em;
}
.section-sub{color:var(--text-2);font-size:16.5px}
.section-head-row{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;flex-wrap:wrap;margin-bottom:40px}
.section-head-row .section-head{margin-bottom:0}
.text-link{display:inline-flex;align-items:center;gap:6px;font-weight:700;color:var(--text-1);border-bottom:1px solid var(--line);padding-bottom:2px}
.text-link span{transition:transform .2s var(--ease)}
.text-link:hover span{transform:translateX(4px)}
.on-dark .text-link,.section-dark .text-link{color:#fff;border-color:rgba(255,255,255,.3)}

/* ---------- cards ---------- */
.card{
  height:100%;
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--r-card);
  padding:26px;
  box-shadow:var(--shadow-soft);
  transition:transform .22s var(--ease),box-shadow .22s var(--ease),border-color .22s var(--ease);
}
.card:hover{transform:translateY(-3px);box-shadow:var(--shadow-lift);border-color:rgba(200,249,74,.85)}
.card-num{
  font-size:13px;font-weight:800;letter-spacing:.1em;color:var(--text-2);
  display:inline-block;margin-bottom:14px;
}
.card h3{font-size:20px;font-weight:600;margin-bottom:10px}
.card p{color:var(--text-2);font-size:15.5px}
.card-icon{
  width:44px;height:44px;border-radius:14px;
  display:grid;place-items:center;margin-bottom:18px;
  background:var(--paper-2);color:var(--text-1);
  border:1px solid var(--line);
}
.badge{
  display:inline-flex;align-items:center;gap:6px;
  padding:4px 12px;border-radius:var(--r-btn);
  font-size:12.5px;font-weight:700;
  border:1px solid var(--line);color:var(--text-2);
  background:#fff;
}
.badge-signal{border-color:rgba(255,90,43,.5);color:var(--signal);background:rgba(255,90,43,.06)}
.badge-neon{border-color:rgba(200,249,74,.7);color:#3d4a12;background:rgba(200,249,74,.22)}
.tag{
  display:inline-block;padding:3px 10px;border-radius:var(--r-input);
  font-size:12.5px;color:var(--text-2);background:var(--paper-2);
  border:1px solid var(--line);
}

/* ---------- entry cards ---------- */
.entry-card{display:flex;flex-direction:column;overflow:hidden;padding:0}
.entry-media{position:relative;aspect-ratio:16/9;background:var(--paper-2)}
.entry-media img{width:100%;height:100%;object-fit:cover;border-radius:0}
.entry-body{padding:24px}
.entry-body h3{font-size:19px;margin:12px 0 8px}
.entry-body p{font-size:15px}
.entry-foot{margin-top:18px;display:flex;align-items:center;justify-content:space-between;gap:12px}
.entry-link{font-size:14px;font-weight:700;color:var(--text-1)}
.entry-link:hover{color:var(--signal)}

/* ---------- steps ---------- */
.steps-wrap{align-items:flex-start}
.steps-intro{padding-right:8px}
.steps-intro h2{font-size:clamp(26px,3.4vw,38px);margin:16px 0 14px}
.steps-intro p{color:var(--text-2)}
.step-list{display:flex;flex-direction:column;gap:16px}
.step{
  display:flex;gap:22px;align-items:flex-start;
  background:#fff;border:1px solid var(--line);border-left:3px solid var(--neon);
  border-radius:var(--r-card);padding:24px 26px;
  box-shadow:var(--shadow-soft);
  transition:transform .22s var(--ease),box-shadow .22s var(--ease);
}
.step:hover{transform:translateY(-3px);box-shadow:var(--shadow-lift)}
.step-index{
  font-size:34px;font-weight:800;color:transparent;
  -webkit-text-stroke:1.4px var(--text-1);
  line-height:1;flex:0 0 auto;letter-spacing:-.02em;
}
.step h3{font-size:20px;margin-bottom:8px}
.step p{color:var(--text-2);font-size:15.5px}
.step-meta{margin-top:12px;display:flex;gap:8px;flex-wrap:wrap}

/* ---------- category grid ---------- */
.cat-card{display:block;height:100%;position:relative;overflow:hidden}
.cat-card .cat-cover{aspect-ratio:3/2;overflow:hidden;border-radius:var(--r-card) var(--r-card) 0 0;background:var(--paper-2)}
.cat-card .cat-cover img{width:100%;height:100%;object-fit:cover;border-radius:0;transition:transform .4s var(--ease)}
.cat-card:hover .cat-cover img{transform:scale(1.05)}
.cat-card .cat-body{padding:24px 26px 28px}
.cat-card h3{font-size:21px;margin:14px 0 10px}
.cat-card p{color:var(--text-2);font-size:15.5px}
.cat-card .cat-more{margin-top:18px;font-weight:700;font-size:14.5px;display:inline-flex;gap:6px;align-items:center}

/* ---------- proof ---------- */
.proof-main{
  display:grid;grid-template-columns:1.05fr .95fr;
  background:#fff;border:1px solid var(--line);border-radius:var(--r-card);overflow:hidden;
  box-shadow:var(--shadow-soft);
}
.proof-main-media{background:var(--paper-2);min-height:300px}
.proof-main-media img{width:100%;height:100%;object-fit:cover;border-radius:0}
.proof-main-body{padding:36px}
.proof-main-body h3{font-size:clamp(22px,2.4vw,28px);margin:16px 0 14px}
.proof-main-body p{color:var(--text-2)}
.proof-metrics{display:flex;gap:36px;flex-wrap:wrap;margin-top:28px;padding-top:24px;border-top:1px solid var(--line)}
.proof-metrics b{display:block;font-size:32px;font-weight:800;color:var(--text-1);line-height:1.1}
.proof-metrics span{font-size:13.5px;color:var(--text-2)}
.proof-side{display:flex;flex-direction:column;gap:16px;margin-top:16px}
.proof-row{
  display:flex;gap:20px;align-items:center;
  background:var(--paper-2);border:1px solid var(--line);border-radius:var(--r-card);
  padding:20px 24px;transition:border-color .22s var(--ease),transform .22s var(--ease);
}
.proof-row:hover{border-color:rgba(200,249,74,.9);transform:translateX(3px)}
.proof-row .proof-thumb{width:96px;height:66px;flex:0 0 auto;overflow:hidden;border-radius:var(--r-input);background:#fff}
.proof-row .proof-thumb img{width:100%;height:100%;object-fit:cover;border-radius:0}
.proof-row h4{font-size:17px;font-weight:600;margin-bottom:6px}
.proof-row p{font-size:14.5px;color:var(--text-2)}

/* ---------- faq ---------- */
.faq-col h2{font-size:clamp(26px,3.4vw,38px);margin:16px 0 14px}
.faq-col p{color:var(--text-2)}
.faq-list{display:flex;flex-direction:column;gap:12px}
.faq-item{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-card);
  overflow:hidden;transition:border-color .22s var(--ease),box-shadow .22s var(--ease);
}
.faq-item[open]{border-color:rgba(200,249,74,.9);box-shadow:var(--shadow-soft)}
.faq-item summary{
  list-style:none;cursor:pointer;
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:20px 24px;min-height:56px;
  font-weight:600;font-size:16.5px;
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{
  content:"+";font-size:22px;font-weight:400;color:var(--text-2);
  flex:0 0 auto;transition:transform .22s var(--ease),color .22s var(--ease);
}
.faq-item[open] summary::after{content:"×";color:var(--signal);transform:rotate(90deg)}
.faq-answer{
  padding:0 24px 22px 40px;
  color:var(--text-2);font-size:15.5px;
  border-left:3px solid var(--neon);
  margin:0 0 4px 24px;padding-left:18px;
}

/* ---------- news ---------- */
.news-card{
  display:flex;flex-direction:column;height:100%;
  background:#fff;border:1px solid var(--line);border-radius:var(--r-card);
  overflow:hidden;box-shadow:var(--shadow-soft);
  transition:transform .22s var(--ease),box-shadow .22s var(--ease),border-color .22s var(--ease);
}
.news-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-lift);border-color:rgba(200,249,74,.85)}
.news-thumb{aspect-ratio:16/9;background:var(--paper-2);overflow:hidden}
.news-thumb img{width:100%;height:100%;object-fit:cover;border-radius:0;transition:transform .4s var(--ease)}
.news-card:hover .news-thumb img{transform:scale(1.04)}
.news-body{padding:22px 24px 26px;display:flex;flex-direction:column;gap:12px;flex:1}
.news-body h3{font-size:18.5px;line-height:1.45}
.news-body p{font-size:15px;color:var(--text-2)}
.news-time{font-size:13px;color:var(--text-2);margin-top:auto;letter-spacing:.02em}
.empty-state{
  border:1px dashed var(--line);border-radius:var(--r-card);
  padding:48px 24px;text-align:center;color:var(--text-2);
  background:rgba(255,255,255,.6);font-size:15.5px;
}

/* ---------- cta ---------- */
.cta-band{
  position:relative;overflow:hidden;background:var(--ink-950);color:#fff;
  padding:88px 0;
}
.cta-band .cta-bg{
  position:absolute;inset:0;
  background-image:url('/assets/images/backpic/back-2.webp');
  background-size:cover;background-position:center;
  opacity:.28;
}
.cta-band::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(120deg,rgba(10,12,16,.94),rgba(10,12,16,.72));
}
.cta-inner{position:relative;z-index:2;display:flex;align-items:center;justify-content:space-between;gap:40px;flex-wrap:wrap}
.cta-copy{max-width:640px}
.cta-copy h2{font-size:clamp(26px,3.6vw,42px);color:#fff;margin-bottom:14px}
.cta-copy p{color:rgba(255,255,255,.72)}
.cta-actions{display:flex;flex-direction:column;gap:14px;align-items:flex-start}
.cta-note{font-size:13px;color:rgba(255,255,255,.5);margin-top:6px}

/* ---------- footer ---------- */
.site-footer{background:var(--ink-950);color:rgba(255,255,255,.66);padding:72px 0 0}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.1fr;gap:40px}
.footer-brand .brand-name{font-size:16px}
.footer-brand p{margin-top:16px;font-size:14.5px;line-height:1.8;color:rgba(255,255,255,.55)}
.footer-title{color:#fff;font-size:14px;font-weight:700;letter-spacing:.06em;margin-bottom:18px}
.footer-list li{margin-bottom:11px}
.footer-list a{font-size:14.5px;color:rgba(255,255,255,.62)}
.footer-list a:hover{color:var(--neon)}
.footer-qr{
  width:96px;height:96px;border-radius:12px;
  border:1px solid var(--line-dark);
  display:grid;place-items:center;
  font-size:12px;color:rgba(255,255,255,.45);text-align:center;
  background:rgba(255,255,255,.04);padding:8px;line-height:1.5;
}
.footer-contact li{margin-bottom:12px;font-size:14.5px;color:rgba(255,255,255,.6)}
.footer-bottom{
  margin-top:56px;border-top:1px solid var(--line-dark);
  padding:22px 0;display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13px;color:rgba(255,255,255,.42);
}

/* ---------- responsive ---------- */
@media (max-width:1023px){
  :root{--gut:20px}
  .nav-main{
    position:fixed;top:73px;left:0;right:0;bottom:0;
    display:none;flex-direction:column;align-items:stretch;gap:4px;
    padding:20px;background:rgba(10,12,16,.98);
    border-top:1px solid var(--line-dark);
    overflow-y:auto;z-index:70;
  }
  .nav-main.is-open{display:flex}
  .nav-link{padding:16px 14px;font-size:16px;border-bottom:1px solid var(--line-dark);border-radius:0}
  .nav-link::after{display:none}
  .nav-link.is-active{color:var(--neon);background:rgba(200,249,74,.06)}
  .burger{display:flex}
  .header-cta{display:none}
  .hero{padding:72px 0 68px}
  .section{padding:72px 0}
  .hero-stats{grid-template-columns:repeat(2,minmax(0,1fr));margin-top:48px}
  .proof-main{grid-template-columns:1fr}
  .proof-main-media{min-height:240px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
}
@media (max-width:767px){
  body{font-size:16px}
  .hero h1{font-size:34px}
  .section{padding:60px 0}
  .cta-band{padding:64px 0}
  .section-head{margin-bottom:32px}
  .proof-main-body{padding:26px}
  .proof-metrics{gap:26px}
  .faq-answer{margin-left:18px;padding-left:14px;padding-right:18px}
  .step{padding:20px}
  .step-index{font-size:28px}
}
@media (max-width:639px){
  .hero-stats{grid-template-columns:1fr}
  .stat{padding:20px}
  .footer-grid{grid-template-columns:1fr;gap:30px}
  .proof-row{flex-direction:column;align-items:flex-start;gap:14px}
  .proof-row .proof-thumb{width:100%;height:auto;aspect-ratio:16/9}
  .card{padding:18px}
  .entry-body{padding:18px}
  .cat-card .cat-body{padding:18px}
  .news-body{padding:18px}
  .btn{width:100%}
  .hero-actions .btn,.cta-actions .btn{width:100%}
  .hero-actions,.cta-actions{width:100%}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation-duration:.001ms !important;animation-iteration-count:1 !important;transition-duration:.001ms !important}
  .hero-bg{animation:none}
}

/* roulang page: article */
:root{
  --ink-950:#0A0C10;
  --ink-800:#12161C;
  --paper:#F5F6F2;
  --paper-2:#ECEEE8;
  --neon:#C8F94A;
  --signal:#FF5A2B;
  --text-1:#14181D;
  --text-2:#5B6470;
  --line:rgba(20,24,29,.10);
  --line-dark:rgba(255,255,255,.12);
  --r-card:18px;
  --r-pill:999px;
  --r-input:12px;
  --r-img:16px;
  --shadow-soft:0 10px 30px rgba(10,12,16,.08);
  --shadow-lift:0 18px 44px rgba(10,12,16,.14);
  --shadow-neon:0 0 0 1px rgba(200,249,74,.55), 0 14px 36px rgba(200,249,74,.18);
  --container:1240px;
  --ease:cubic-bezier(.22,.61,.36,1);
}

*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--paper);
  color:var(--text-1);
  font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei","Source Han Sans SC","Helvetica Neue",Arial,sans-serif;
  font-size:16px;
  line-height:1.85;
  font-variant-numeric:tabular-nums;
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4,h5,h6,p,ul,ol,figure,blockquote{margin:0;}
ul,ol{padding:0;list-style:none;}
a{color:inherit;text-decoration:none;transition:color .2s var(--ease);}
img{max-width:100%;display:block;border-radius:var(--r-img);}
button{font-family:inherit;border:0;background:none;cursor:pointer;}
input,textarea,select{font-family:inherit;font-size:15px;}
:focus-visible{outline:2px solid var(--neon);outline-offset:3px;}

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

/* ---------- Header ---------- */
.site-header{
  position:sticky;
  top:0;
  z-index:80;
  background:var(--ink-950);
  border-bottom:1px solid var(--line-dark);
  transition:padding .24s var(--ease), background .24s var(--ease), box-shadow .24s var(--ease);
}
.site-header::after{
  content:"";
  position:absolute;
  left:0;right:0;bottom:-1px;
  height:1px;
  background:linear-gradient(90deg,transparent,rgba(200,249,74,.75),transparent);
  opacity:.7;
}
.site-header.is-scrolled{
  background:rgba(10,12,16,.92);
  backdrop-filter:blur(12px);
  box-shadow:0 10px 30px rgba(0,0,0,.35);
}
.header-inner{
  display:flex;
  align-items:center;
  gap:28px;
  min-height:76px;
  transition:min-height .24s var(--ease);
}
.site-header.is-scrolled .header-inner{min-height:64px;}

.brand{display:flex;align-items:center;gap:12px;flex:0 0 auto;}
.brand-mark{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  width:42px;height:42px;
  border-radius:12px;
  background:var(--neon);
  color:var(--ink-950);
  font-weight:800;
  font-size:16px;
  letter-spacing:.02em;
  box-shadow:0 0 0 1px rgba(200,249,74,.35), 0 8px 20px rgba(200,249,74,.18);
}
.brand-text{display:flex;flex-direction:column;line-height:1.25;}
.brand-name{color:#fff;font-size:16px;font-weight:700;letter-spacing:-.01em;}
.brand-sub{color:rgba(255,255,255,.42);font-size:11px;letter-spacing:.12em;text-transform:uppercase;}

.nav-main{display:flex;align-items:center;gap:6px;margin-left:auto;}
.nav-link{
  position:relative;
  padding:10px 14px;
  border-radius:var(--r-pill);
  color:rgba(255,255,255,.66);
  font-size:15px;
  font-weight:500;
  white-space:nowrap;
  transition:color .2s var(--ease), background .2s var(--ease);
}
.nav-link::after{
  content:"";
  position:absolute;
  left:50%;bottom:4px;
  width:0;height:2px;
  border-radius:2px;
  background:var(--neon);
  transform:translateX(-50%);
  transition:width .24s var(--ease);
  box-shadow:0 0 10px rgba(200,249,74,.7);
}
.nav-link:hover{color:#fff;background:rgba(255,255,255,.06);}
.nav-link:hover::after{width:22px;}
.nav-link.is-active{color:var(--neon);}
.nav-link.is-active::after{width:26px;}

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

.burger{
  display:none;
  width:44px;height:44px;
  border-radius:12px;
  border:1px solid var(--line-dark);
  flex-direction:column;
  align-items:center;
  justify-content:center;
  gap:5px;
  margin-left:auto;
}
.burger span{
  display:block;
  width:18px;height:2px;
  border-radius:2px;
  background:var(--neon);
  transition:transform .24s var(--ease), opacity .24s var(--ease);
}
.burger[aria-expanded="true"] span:nth-child(1){transform:translateY(7px) rotate(45deg);}
.burger[aria-expanded="true"] span:nth-child(2){opacity:0;}
.burger[aria-expanded="true"] span:nth-child(3){transform:translateY(-7px) rotate(-45deg);}

/* ---------- Buttons ---------- */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  padding:13px 26px;
  border-radius:var(--r-pill);
  font-size:15px;
  font-weight:700;
  line-height:1;
  letter-spacing:.01em;
  transition:transform .2s var(--ease), box-shadow .2s var(--ease), background .2s var(--ease), color .2s var(--ease), border-color .2s var(--ease);
}
.btn-sm{padding:10px 20px;font-size:14px;}
.btn-primary{background:var(--neon);color:var(--ink-950);}
.btn-primary:hover{transform:translateY(-2px);box-shadow:var(--shadow-neon);}
.btn-primary:active{transform:translateY(0);}
.btn-ghost{
  border:1px solid rgba(255,255,255,.24);
  color:#fff;
  background:transparent;
}
.btn-ghost:hover{border-color:var(--neon);color:var(--neon);transform:translateY(-2px);}
.btn-outline{
  border:1px solid var(--line);
  color:var(--text-1);
  background:#fff;
}
.btn-outline:hover{border-color:var(--neon);transform:translateY(-2px);box-shadow:var(--shadow-soft);}
.link-arrow{
  display:inline-flex;
  align-items:center;
  gap:8px;
  font-weight:600;
  color:var(--text-1);
  border-bottom:1px solid var(--line);
  padding-bottom:2px;
  transition:color .2s var(--ease), border-color .2s var(--ease);
}
.link-arrow i{transition:transform .2s var(--ease);}
.link-arrow:hover{color:var(--ink-950);border-color:var(--neon);}
.link-arrow:hover i{transform:translateX(4px);}

/* ---------- Badges ---------- */
.badge{
  display:inline-flex;
  align-items:center;
  gap:6px;
  padding:5px 13px;
  border-radius:var(--r-pill);
  font-size:12.5px;
  font-weight:600;
  letter-spacing:.02em;
}
.badge-signal{border:1px solid rgba(255,90,43,.55);color:var(--signal);background:rgba(255,90,43,.07);}
.badge-neon{border:1px solid rgba(200,249,74,.55);color:#5d7a00;background:rgba(200,249,74,.16);}

/* ---------- Post hero ---------- */
.post-hero{
  position:relative;
  overflow:hidden;
  background:var(--ink-950);
  color:#fff;
  padding:52px 0 64px;
  isolation:isolate;
}
.post-hero-bg{
  position:absolute;
  inset:0;
  background-size:cover;
  background-position:center;
  opacity:.22;
  filter:grayscale(.2);
  transform:scale(1.04);
  z-index:-2;
}
.post-hero::before{
  content:"";
  position:absolute;
  inset:0;
  background:
    linear-gradient(180deg, rgba(10,12,16,.72), rgba(10,12,16,.94)),
    repeating-linear-gradient(0deg, rgba(255,255,255,.045) 0 1px, transparent 1px 64px),
    repeating-linear-gradient(90deg, rgba(255,255,255,.045) 0 1px, transparent 1px 64px);
  z-index:-1;
}
.crumb{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:8px;
  font-size:13.5px;
  color:rgba(255,255,255,.52);
  margin-bottom:22px;
}
.crumb a:hover{color:var(--neon);}
.crumb-sep{color:rgba(255,255,255,.24);}
.crumb-current{color:rgba(255,255,255,.82);}
.post-title{
  font-size:clamp(30px,4.4vw,54px);
  font-weight:800;
  line-height:1.14;
  letter-spacing:-.02em;
  max-width:22ch;
}
.post-meta{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:10px 18px;
  margin-top:24px;
}
.meta-item{
  display:inline-flex;
  align-items:center;
  gap:7px;
  font-size:13.5px;
  color:rgba(255,255,255,.58);
}
.meta-item i{font-size:13px;color:var(--neon);}
.post-lead{
  margin-top:26px;
  max-width:76ch;
  font-size:16.5px;
  line-height:1.9;
  color:rgba(255,255,255,.76);
  border-left:3px solid rgba(200,249,74,.8);
  padding-left:18px;
}

/* ---------- Layout ---------- */
.post-body-section{padding:80px 0 96px;}
.post-layout{row-gap:48px;}
.post-layout>.cell{min-width:0;}

.article-body{
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--r-card);
  padding:44px 48px;
  box-shadow:var(--shadow-soft);
  max-width:82ch;
  font-size:16.5px;
  line-height:1.9;
  color:#232a33;
  overflow-wrap:break-word;
  word-break:break-word;
}
.article-body h2{
  position:relative;
  margin:44px 0 16px;
  padding-left:16px;
  font-size:clamp(21px,2.4vw,27px);
  font-weight:700;
  line-height:1.4;
  color:var(--text-1);
}
.article-body h2::before{
  content:"";
  position:absolute;
  left:0;top:.18em;
  width:3px;
  height:1.05em;
  border-radius:3px;
  background:var(--neon);
  box-shadow:0 0 10px rgba(200,249,74,.6);
}
.article-body h3{
  margin:32px 0 12px;
  font-size:19px;
  font-weight:700;
  color:var(--text-1);
}
.article-body p{margin:0 0 18px;}
.article-body a{color:#3f5c00;border-bottom:1px solid rgba(200,249,74,.7);}
.article-body a:hover{color:var(--ink-950);background:rgba(200,249,74,.22);}
.article-body strong{font-weight:700;color:var(--text-1);}
.article-body ul,
.article-body ol{margin:0 0 20px;}
.article-body ul li{
  position:relative;
  padding-left:22px;
  margin-bottom:10px;
}
.article-body ul li::before{
  content:"";
  position:absolute;
  left:0;top:.78em;
  width:8px;height:8px;
  border-radius:2px;
  background:var(--neon);
}
.article-body ol{counter-reset:mk;}
.article-body ol li{
  position:relative;
  padding-left:34px;
  margin-bottom:12px;
  counter-increment:mk;
}
.article-body ol li::before{
  content:counter(mk,decimal-leading-zero);
  position:absolute;
  left:0;top:.15em;
  font-size:13px;
  font-weight:700;
  color:var(--text-2);
  letter-spacing:.04em;
}
.article-body blockquote{
  margin:26px 0;
  padding:20px 24px;
  border-left:3px solid var(--neon);
  background:var(--paper-2);
  border-radius:0 var(--r-input) var(--r-input) 0;
  color:#39424d;
}
.article-body blockquote p:last-child{margin-bottom:0;}
.article-body img{
  width:100%;
  margin:24px 0;
  border-radius:var(--r-img);
  border:1px solid var(--line);
}
.article-body figure{margin:26px 0;}
.article-body figcaption{
  margin-top:10px;
  font-size:13px;
  color:var(--text-2);
  text-align:center;
}
.article-body table{
  width:100%;
  margin:26px 0;
  border-collapse:collapse;
  font-size:15px;
}
.article-body th,
.article-body td{
  border:0;
  border-bottom:1px solid var(--line);
  padding:13px 14px;
  text-align:left;
  vertical-align:top;
}
.article-body th{
  font-weight:700;
  color:var(--text-1);
  background:var(--paper-2);
}
.article-body hr{
  height:1px;
  border:0;
  margin:36px 0;
  background:var(--line);
}
.article-body code{
  padding:2px 6px;
  border-radius:6px;
  background:var(--paper-2);
  font-size:14px;
}

/* ---------- Empty state ---------- */
.empty-state{
  text-align:center;
  padding:40px 20px;
  border:1px dashed var(--line);
  border-radius:var(--r-card);
  background:var(--paper);
}
.empty-state i{font-size:34px;color:var(--text-2);}
.empty-title{margin-top:14px;font-size:20px;font-weight:700;}
.empty-desc{margin:10px auto 22px;max-width:44ch;color:var(--text-2);font-size:15px;}

/* ---------- Aside ---------- */
.aside-wrap{display:flex;flex-direction:column;gap:22px;}
@media (min-width:1024px){
  .aside-sticky{position:sticky;top:104px;display:flex;flex-direction:column;gap:22px;}
}
.side-card{
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--r-card);
  padding:24px;
  box-shadow:var(--shadow-soft);
}
.side-title{
  display:flex;
  align-items:center;
  gap:9px;
  font-size:15px;
  font-weight:700;
  margin-bottom:16px;
}
.side-title i{color:#6f8f10;font-size:14px;}
.side-list li+li{margin-top:2px;}
.side-link{
  display:flex;
  align-items:flex-start;
  gap:10px;
  padding:11px 12px;
  border-radius:var(--r-input);
  font-size:14.5px;
  color:#2b333d;
  transition:background .2s var(--ease), color .2s var(--ease), transform .2s var(--ease);
}
.side-link i{margin-top:5px;font-size:11px;color:var(--text-2);transition:color .2s var(--ease);}
.side-link:hover{background:var(--paper-2);color:var(--ink-950);transform:translateX(3px);}
.side-link:hover i{color:#6f8f10;}
.side-note{
  font-size:14px;
  color:var(--text-2);
  line-height:1.8;
}
.side-note li{display:flex;gap:10px;align-items:flex-start;}
.side-note li+li{margin-top:12px;}
.side-note i{margin-top:6px;color:#6f8f10;font-size:12px;}
.side-card-dark{
  background:var(--ink-950);
  border-color:var(--ink-800);
  color:#fff;
}
.side-card-dark .side-title{color:#fff;}
.side-card-dark .side-title i{color:var(--neon);}
.side-card-dark .side-note,
.side-card-dark p{color:rgba(255,255,255,.66);}
.side-card-dark .btn{margin-top:16px;width:100%;}

/* ---------- Post nav ---------- */
.post-nav{
  display:grid;
  grid-template-columns:repeat(2,minmax(0,1fr));
  gap:16px;
  margin-top:28px;
}
.post-nav-item{
  display:block;
  padding:20px 22px;
  border:1px solid var(--line);
  border-radius:var(--r-card);
  background:#fff;
  box-shadow:var(--shadow-soft);
  transition:transform .22s var(--ease), box-shadow .22s var(--ease), border-color .22s var(--ease);
}
.post-nav-item:hover{transform:translateY(-3px);border-color:rgba(200,249,74,.7);box-shadow:var(--shadow-lift);}
.post-nav-label{
  display:block;
  font-size:12px;
  letter-spacing:.08em;
  color:var(--text-2);
  margin-bottom:8px;
}
.post-nav-title{font-size:15.5px;font-weight:600;line-height:1.6;}
.post-nav-item.is-next{text-align:right;}

/* ---------- Related ---------- */
.related-section{
  background:var(--paper-2);
  padding:76px 0 88px;
  border-top:1px solid var(--line);
  border-bottom:1px solid var(--line);
}
.section-head{margin-bottom:36px;}
.eyebrow{
  display:inline-flex;
  align-items:center;
  gap:10px;
  font-size:12px;
  letter-spacing:.14em;
  color:var(--text-2);
  text-transform:uppercase;
  margin-bottom:12px;
}
.eyebrow::before{
  content:"";
  width:22px;height:2px;
  border-radius:2px;
  background:var(--neon);
}
.section-title{
  font-size:clamp(24px,3.2vw,36px);
  font-weight:700;
  line-height:1.28;
  letter-spacing:-.01em;
}
.section-desc{margin-top:12px;max-width:64ch;color:var(--text-2);font-size:16px;}

.card{
  display:flex;
  flex-direction:column;
  height:100%;
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--r-card);
  overflow:hidden;
  box-shadow:var(--shadow-soft);
  transition:transform .22s var(--ease), box-shadow .22s var(--ease), border-color .22s var(--ease);
}
.card:hover{transform:translateY(-3px);border-color:rgba(200,249,74,.75);box-shadow:var(--shadow-lift);}
.card-media{
  position:relative;
  aspect-ratio:16/9;
  background:var(--paper-2);
  border-bottom:1px solid var(--line);
  overflow:hidden;
}
.card-media img{width:100%;height:100%;object-fit:cover;border-radius:0;}
.card-media .badge{position:absolute;left:14px;top:14px;background:rgba(255,255,255,.92);}
.card-body{padding:24px;display:flex;flex-direction:column;gap:10px;flex:1;}
.card-title{font-size:18px;font-weight:700;line-height:1.5;}
.card-text{font-size:14.5px;color:var(--text-2);line-height:1.8;}
.card-foot{
  margin-top:auto;
  padding-top:14px;
  border-top:1px solid var(--line);
  display:flex;
  align-items:center;
  justify-content:space-between;
  font-size:13px;
  color:var(--text-2);
}
.card-foot i{color:#6f8f10;}

/* ---------- CTA ---------- */
.cta-section{
  position:relative;
  background:var(--ink-950);
  color:#fff;
  padding:84px 0;
  overflow:hidden;
}
.cta-section::before{
  content:"";
  position:absolute;
  inset:0;
  background:
    radial-gradient(680px 320px at 12% 12%, rgba(200,249,74,.16), transparent 68%),
    repeating-linear-gradient(90deg, rgba(255,255,255,.035) 0 1px, transparent 1px 72px);
  pointer-events:none;
}
.cta-inner{position:relative;max-width:760px;}
.cta-title{
  font-size:clamp(26px,3.6vw,42px);
  font-weight:800;
  line-height:1.2;
  letter-spacing:-.015em;
}
.cta-text{margin-top:16px;color:rgba(255,255,255,.7);font-size:16.5px;max-width:60ch;}
.cta-actions{display:flex;flex-wrap:wrap;align-items:center;gap:18px;margin-top:30px;}
.cta-section .link-arrow{color:rgba(255,255,255,.78);border-color:rgba(255,255,255,.24);}
.cta-section .link-arrow:hover{color:var(--neon);border-color:var(--neon);}
.cta-note{margin-top:22px;font-size:13px;color:rgba(255,255,255,.42);}

/* ---------- Footer ---------- */
.site-footer{
  background:var(--ink-950);
  color:rgba(255,255,255,.66);
  padding:72px 0 28px;
  border-top:1px solid var(--line-dark);
}
.footer-grid{
  display:grid;
  grid-template-columns:1.6fr 1fr 1fr 1.2fr;
  gap:40px;
}
.footer-brand .brand{margin-bottom:18px;}
.footer-brand p{font-size:14.5px;line-height:1.85;max-width:40ch;}
.footer-title{
  color:#fff;
  font-size:15px;
  font-weight:700;
  margin-bottom:18px;
}
.footer-list li{margin-bottom:11px;font-size:14.5px;}
.footer-list a{color:rgba(255,255,255,.62);}
.footer-list a:hover{color:var(--neon);}
.footer-contact li{color:rgba(255,255,255,.62);}
.footer-qr{
  margin-top:18px;
  width:132px;height:132px;
  border:1px dashed rgba(255,255,255,.24);
  border-radius:var(--r-input);
  display:flex;
  align-items:center;
  justify-content:center;
  text-align:center;
  font-size:12.5px;
  line-height:1.6;
  color:rgba(255,255,255,.45);
  background:rgba(255,255,255,.03);
}
.footer-bottom{
  margin-top:52px;
  padding-top:22px;
  border-top:1px solid var(--line-dark);
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  justify-content:space-between;
  gap:12px;
  font-size:13px;
  color:rgba(255,255,255,.42);
}

/* ---------- Responsive ---------- */
@media (max-width:1023px){
  .burger{display:flex;}
  .nav-main{
    position:absolute;
    top:100%;
    left:0;
    right:0;
    flex-direction:column;
    align-items:stretch;
    gap:4px;
    margin-left:0;
    padding:14px 20px 22px;
    background:rgba(10,12,16,.98);
    border-bottom:1px solid var(--line-dark);
    box-shadow:0 20px 40px rgba(0,0,0,.4);
    transform:translateY(-12px);
    opacity:0;
    visibility:hidden;
    transition:opacity .24s var(--ease), transform .24s var(--ease), visibility .24s var(--ease);
  }
  .nav-main.is-open{opacity:1;visibility:visible;transform:translateY(0);}
  .nav-link{padding:14px 12px;border-radius:var(--r-input);font-size:15.5px;}
  .nav-link::after{display:none;}
  .nav-link.is-active{background:rgba(200,249,74,.12);}
  .header-inner{flex-wrap:wrap;padding:0 20px;}
  .header-cta{display:none;}
  .post-body-section{padding:56px 0 72px;}
  .article-body{padding:32px 26px;font-size:16px;}
  .footer-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:32px;}
}
@media (max-width:767px){
  .container{padding:0 16px;}
  .post-hero{padding:34px 0 46px;}
  .post-lead{padding-left:14px;font-size:15.5px;}
  .post-nav{grid-template-columns:1fr;}
  .post-nav-item.is-next{text-align:left;}
  .related-section{padding:56px 0 64px;}
  .cta-section{padding:58px 0;}
  .cta-actions .btn{width:100%;}
  .site-footer{padding:54px 0 22px;}
}
@media (max-width:519px){
  .brand-name{font-size:14.5px;}
  .brand-sub{display:none;}
  .article-body{padding:24px 18px;border-radius:14px;}
  .article-body h2{font-size:20px;}
  .footer-grid{grid-template-columns:1fr;gap:28px;}
  .side-card{padding:20px 18px;}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{
    animation-duration:.001ms !important;
    animation-iteration-count:1 !important;
    transition-duration:.001ms !important;
    scroll-behavior:auto !important;
  }
}

/* roulang page: category1 */
:root{
  --ink-950:#0A0C10;
  --ink-800:#12161C;
  --paper:#F5F6F2;
  --paper-2:#ECEEE8;
  --neon:#C8F94A;
  --signal:#FF5A2B;
  --text-1:#14181D;
  --text-2:#5B6470;
  --line:rgba(20,24,29,.10);
  --line-dark:rgba(255,255,255,.10);
  --r-card:18px;
  --r-img:16px;
  --r-input:12px;
  --r-pill:999px;
  --shadow-soft:0 10px 30px rgba(10,12,16,.08);
  --shadow-neon:0 0 0 1px rgba(200,249,74,.45), 0 12px 34px rgba(200,249,74,.18);
  --ease:cubic-bezier(.22,.61,.36,1);
  --maxw:1240px;
}

*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei","Source Han Sans SC","Helvetica Neue",Arial,sans-serif;
  font-size:16.5px;
  line-height:1.85;
  color:var(--text-1);
  background:var(--paper);
  -webkit-font-smoothing:antialiased;
}
body.nav-open{overflow:hidden;}
img{max-width:100%;display:block;border-radius:var(--r-img);}
a{color:inherit;text-decoration:none;transition:color .2s var(--ease),opacity .2s var(--ease);}
a:hover{color:var(--text-1);}
button{font-family:inherit;}
h1,h2,h3,h4,p,ul,ol,figure{margin:0;padding:0;}
ul,ol{list-style:none;}
h1,h2,h3,h4{font-weight:700;letter-spacing:-.01em;}
.num{font-variant-numeric:tabular-nums;font-feature-settings:"tnum";}

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

/* ---------- 通用按钮 ---------- */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  padding:14px 28px;
  border-radius:var(--r-pill);
  font-size:15px;
  font-weight:600;
  line-height:1;
  border:1px solid transparent;
  cursor:pointer;
  transition:transform .22s var(--ease),box-shadow .22s var(--ease),background .22s var(--ease),color .22s var(--ease),border-color .22s var(--ease);
  white-space:nowrap;
}
.btn-primary{background:var(--neon);color:#0A0C10;box-shadow:0 6px 18px rgba(200,249,74,.24);}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 10px 28px rgba(200,249,74,.42);color:#0A0C10;}
.btn-ghost{background:transparent;color:#F5F6F2;border-color:rgba(245,246,242,.34);}
.btn-ghost:hover{border-color:var(--neon);color:var(--neon);transform:translateY(-2px);}
.btn-outline{background:transparent;color:var(--text-1);border-color:var(--line);}
.btn-outline:hover{border-color:var(--text-1);transform:translateY(-2px);}
.btn-sm{padding:11px 20px;font-size:14px;}
.btn:focus-visible,a:focus-visible,button:focus-visible,input:focus-visible{
  outline:2px solid var(--neon);
  outline-offset:3px;
}
.link-arrow{
  display:inline-flex;align-items:center;gap:6px;
  font-weight:600;font-size:15px;color:var(--text-1);
  border-bottom:1px solid rgba(20,24,29,.24);
  padding-bottom:2px;
}
.link-arrow i{transition:transform .22s var(--ease);font-size:12px;}
.link-arrow:hover{border-color:var(--text-1);}
.link-arrow:hover i{transform:translateX(4px);}

/* ---------- 头部导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:90;
  background:rgba(10,12,16,.94);
  backdrop-filter:blur(12px);
  -webkit-backdrop-filter:blur(12px);
  border-bottom:1px solid rgba(200,249,74,.20);
  transition:padding .25s var(--ease);
}
.site-header::after{
  content:"";position:absolute;left:0;right:0;bottom:-1px;height:1px;
  background:linear-gradient(90deg,transparent,rgba(200,249,74,.7),transparent);
  opacity:.6;
}
.header-inner{
  display:flex;align-items:center;gap:24px;
  min-height:78px;
  transition:min-height .25s var(--ease);
}
.site-header.is-compact .header-inner{min-height:64px;}
.brand{display:flex;align-items:center;gap:12px;flex:0 0 auto;}
.brand-mark{
  width:40px;height:40px;border-radius:12px;
  display:grid;place-items:center;
  background:linear-gradient(150deg,var(--neon),#9BD82E);
  color:#0A0C10;font-weight:800;font-size:15px;letter-spacing:.02em;
  box-shadow:0 0 0 1px rgba(200,249,74,.4),0 6px 18px rgba(200,249,74,.22);
}
.brand-text{display:flex;flex-direction:column;line-height:1.2;}
.brand-name{color:#F5F6F2;font-weight:700;font-size:15.5px;letter-spacing:.01em;}
.brand-sub{color:rgba(245,246,242,.46);font-size:11px;letter-spacing:.10em;text-transform:uppercase;}

.nav-main{display:flex;align-items:center;gap:6px;margin-left:auto;}
.nav-link{
  position:relative;
  padding:10px 14px;
  font-size:14.5px;
  font-weight:500;
  color:rgba(245,246,242,.72);
  border-radius:var(--r-input);
}
.nav-link::after{
  content:"";position:absolute;left:50%;bottom:4px;
  height:2px;width:0;background:var(--neon);border-radius:2px;
  transform:translateX(-50%);
  transition:width .24s var(--ease);
}
.nav-link:hover{color:#F5F6F2;}
.nav-link:hover::after{width:60%;}
.nav-link.is-active{color:var(--neon);}
.nav-link.is-active::after{width:72%;box-shadow:0 0 10px rgba(200,249,74,.6);}

.header-cta{flex:0 0 auto;}
.header-cta .btn-primary{box-shadow:0 0 0 1px rgba(200,249,74,.35),0 8px 20px rgba(200,249,74,.20);}

.burger{
  display:none;
  width:44px;height:44px;margin-left:auto;
  border:1px solid rgba(245,246,242,.22);
  background:transparent;border-radius:12px;
  padding:11px 10px;cursor:pointer;
  flex-direction:column;justify-content:space-between;
}
.burger span{display:block;height:2px;background:#F5F6F2;border-radius:2px;transition:transform .24s var(--ease),opacity .24s var(--ease);}
.burger.is-open span:nth-child(1){transform:translateY(9px) rotate(45deg);}
.burger.is-open span:nth-child(2){opacity:0;}
.burger.is-open span:nth-child(3){transform:translateY(-9px) rotate(-45deg);}

/* ---------- 面包屑 ---------- */
.crumb-bar{background:var(--ink-950);border-bottom:1px solid var(--line-dark);}
.crumb{
  display:flex;flex-wrap:wrap;align-items:center;gap:8px;
  padding:16px 0;font-size:13.5px;color:rgba(245,246,242,.55);
}
.crumb a:hover{color:var(--neon);}
.crumb .sep{opacity:.4;}
.crumb .current{color:rgba(245,246,242,.9);}

/* ---------- 分类 Banner ---------- */
.cat-banner{
  position:relative;
  background:var(--ink-950);
  color:#F5F6F2;
  overflow:hidden;
  padding:76px 0 84px;
}
.cat-banner .bg{
  position:absolute;inset:0;
  background-image:url("/assets/images/backpic/back-1.webp");
  background-size:cover;background-position:center;
  opacity:.26;
  animation:slowShift 26s ease-in-out infinite alternate;
}
.cat-banner .grid-lines{
  position:absolute;inset:0;
  background-image:linear-gradient(rgba(200,249,74,.06) 1px,transparent 1px),
                   linear-gradient(90deg,rgba(200,249,74,.06) 1px,transparent 1px);
  background-size:64px 64px;
  mask-image:radial-gradient(120% 90% at 20% 20%,#000 30%,transparent 78%);
  -webkit-mask-image:radial-gradient(120% 90% at 20% 20%,#000 30%,transparent 78%);
}
.cat-banner .container{position:relative;z-index:2;}
.eyebrow{
  display:inline-flex;align-items:center;gap:10px;
  font-size:12px;letter-spacing:.10em;text-transform:uppercase;
  color:var(--neon);font-weight:600;
}
.eyebrow::before{content:"";width:26px;height:2px;background:var(--neon);border-radius:2px;}
.cat-banner h1{
  font-size:clamp(34px,5vw,62px);
  line-height:1.06;
  letter-spacing:-.02em;
  font-weight:800;
  margin:20px 0 18px;
  max-width:16em;
}
.cat-banner h1 em{font-style:normal;color:var(--neon);}
.cat-banner .lead{
  font-size:17px;line-height:1.85;color:rgba(245,246,242,.72);
  max-width:62ch;
}
.banner-tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:26px;}
.tag{
  display:inline-flex;align-items:center;gap:7px;
  padding:8px 15px;border-radius:var(--r-pill);
  font-size:13px;
  border:1px solid rgba(245,246,242,.22);
  color:rgba(245,246,242,.82);
  background:rgba(255,255,255,.03);
}
.tag i{color:var(--neon);font-size:12px;}
.tag-signal{border-color:rgba(255,90,43,.55);color:#FFB79E;}
.tag-signal i{color:var(--signal);}

/* ---------- 通用区块 ---------- */
.section{padding:96px 0;}
.section.tight{padding:72px 0;}
.section.alt{background:var(--paper-2);}
.section-head{max-width:760px;margin-bottom:52px;}
.section-head .eyebrow{color:#5F7208;}
.section-head .eyebrow::before{background:#8FB322;}
.section-head h2{
  font-size:clamp(26px,3.4vw,40px);
  line-height:1.16;
  margin:16px 0 14px;
  letter-spacing:-.015em;
}
.section-head p{color:var(--text-2);font-size:16.5px;}

/* ---------- 背靠背图文 ---------- */
.split{
  display:grid;
  grid-template-columns:minmax(0,1.05fr) minmax(0,.95fr);
  gap:64px;
  align-items:start;
}
.split h2{
  font-size:clamp(26px,3.2vw,38px);
  line-height:1.16;
  letter-spacing:-.015em;
  margin:16px 0 20px;
}
.split p{color:var(--text-2);margin-bottom:18px;}
.split p strong{color:var(--text-1);font-weight:600;}
.split-figure{position:relative;}
.split-figure img{
  width:100%;aspect-ratio:4/3;object-fit:cover;
  border-radius:var(--r-card);
  border:1px solid var(--line);
  background:var(--paper-2);
  box-shadow:var(--shadow-soft);
}
.split-figure figcaption{
  margin-top:14px;font-size:13px;color:var(--text-2);
}
.figure-badge{
  position:absolute;top:16px;left:16px;
  padding:7px 14px;border-radius:var(--r-pill);
  font-size:12.5px;font-weight:600;
  background:rgba(10,12,16,.86);color:var(--neon);
  border:1px solid rgba(200,249,74,.4);
}

/* ---------- 要点清单 ---------- */
.check-list{margin-top:8px;}
.check-list li{
  display:flex;gap:14px;
  padding:18px 0;
  border-bottom:1px solid var(--line);
}
.check-list li:last-child{border-bottom:none;}
.check-icon{
  flex:0 0 auto;width:26px;height:26px;border-radius:9px;
  display:grid;place-items:center;
  background:rgba(200,249,74,.30);
  color:#3F5202;font-size:12px;margin-top:4px;
}
.check-list h3{font-size:17px;font-weight:600;margin-bottom:4px;}
.check-list p{font-size:15px;color:var(--text-2);margin:0;line-height:1.75;}

/* ---------- 编号条目 ---------- */
.step-row{
  display:grid;
  grid-template-columns:repeat(3,minmax(0,1fr));
  gap:24px;
}
.step-card{
  position:relative;
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--r-card);
  padding:30px 26px 28px;
  box-shadow:var(--shadow-soft);
  overflow:hidden;
  transition:transform .22s var(--ease),box-shadow .22s var(--ease),border-color .22s var(--ease);
}
.step-card::before{
  content:"";position:absolute;inset:0;border-radius:var(--r-card);
  border:1px solid transparent;transition:border-color .22s var(--ease);pointer-events:none;
}
.step-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-neon);}
.step-num{
  font-size:46px;font-weight:800;line-height:1;
  color:transparent;
  -webkit-text-stroke:1.5px rgba(20,24,29,.20);
  margin-bottom:14px;
  font-variant-numeric:tabular-nums;
}
.step-card h3{font-size:19px;margin-bottom:10px;}
.step-card p{font-size:15px;color:var(--text-2);margin-bottom:16px;}
.step-card .tagline{
  display:inline-block;padding:5px 12px;border-radius:var(--r-pill);
  font-size:12.5px;background:var(--paper-2);color:var(--text-2);border:1px solid var(--line);
}

/* ---------- 暗色图文块 ---------- */
.dark-panel{
  background:var(--ink-950);
  color:#F5F6F2;
  border-radius:26px;
  padding:56px;
  position:relative;
  overflow:hidden;
  display:grid;
  grid-template-columns:minmax(0,1fr) minmax(0,.85fr);
  gap:52px;
  align-items:center;
}
.dark-panel::before{
  content:"";position:absolute;inset:0;
  background-image:linear-gradient(90deg,rgba(200,249,74,.55) 1px,transparent 1px);
  background-size:120px 100%;
  opacity:.10;
}
.dark-panel > *{position:relative;z-index:2;}
.dark-panel h2{font-size:clamp(24px,3vw,34px);line-height:1.2;margin:14px 0 16px;}
.dark-panel p{color:rgba(245,246,242,.72);margin-bottom:16px;}
.dark-panel img{
  width:100%;aspect-ratio:3/2;object-fit:cover;
  border-radius:var(--r-card);border:1px solid rgba(200,249,74,.24);
}
.dark-list li{
  padding:14px 0;border-bottom:1px solid rgba(255,255,255,.10);
  display:flex;gap:12px;align-items:flex-start;font-size:15.5px;color:rgba(245,246,242,.84);
}
.dark-list li:last-child{border-bottom:none;}
.dark-list i{color:var(--neon);font-size:13px;margin-top:6px;}

/* ---------- 数据条 ---------- */
.metrics{
  display:grid;grid-template-columns:repeat(4,minmax(0,1fr));
  gap:24px;
  border-top:1px solid var(--line);
  border-bottom:1px solid var(--line);
  padding:34px 0;
}
.metric .val{
  font-size:clamp(32px,4vw,52px);font-weight:800;line-height:1;
  color:var(--text-1);letter-spacing:-.02em;
}
.metric .val span{color:#7EA11C;}
.metric .lbl{font-size:13.5px;color:var(--text-2);margin-top:10px;}

/* ---------- FAQ ---------- */
.faq-wrap{display:grid;grid-template-columns:minmax(0,.78fr) minmax(0,1.22fr);gap:56px;align-items:start;}
.faq-intro h2{font-size:clamp(26px,3.2vw,38px);line-height:1.16;margin:14px 0 16px;}
.faq-intro p{color:var(--text-2);margin-bottom:20px;}
.faq-list{border-top:1px solid var(--line);}
.faq-item{border-bottom:1px solid var(--line);position:relative;}
.faq-item::before{
  content:"";position:absolute;left:0;top:18px;bottom:18px;width:3px;
  background:var(--neon);border-radius:3px;opacity:0;transition:opacity .22s var(--ease);
}
.faq-item.is-open::before{opacity:1;}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:20px;
  background:none;border:none;text-align:left;cursor:pointer;
  padding:20px 4px 20px 20px;min-height:56px;
  font-size:16.5px;font-weight:600;color:var(--text-1);
  transition:color .2s var(--ease);
}
.faq-q:hover{color:#4C6307;}
.faq-icon{
  flex:0 0 auto;width:28px;height:28px;border-radius:9px;
  display:grid;place-items:center;
  border:1px solid var(--line);color:var(--text-2);font-size:12px;
  transition:transform .24s var(--ease),background .24s var(--ease),color .24s var(--ease),border-color .24s var(--ease);
}
.faq-item.is-open .faq-icon{transform:rotate(135deg);background:var(--neon);color:#0A0C10;border-color:var(--neon);}
.faq-a{
  max-height:0;overflow:hidden;
  transition:max-height .3s var(--ease);
}
.faq-a p{
  padding:0 40px 22px 20px;color:var(--text-2);font-size:15.5px;line-height:1.85;
}

/* ---------- CTA ---------- */
.cta-band{
  position:relative;
  background:var(--ink-950);
  color:#F5F6F2;
  padding:88px 0;
  overflow:hidden;
}
.cta-band .bg{
  position:absolute;inset:0;
  background-image:url("/assets/images/backpic/back-2.webp");
  background-size:cover;background-position:center;
  opacity:.20;
}
.cta-band .container{position:relative;z-index:2;}
.cta-inner{
  display:grid;grid-template-columns:minmax(0,1.15fr) minmax(0,.85fr);
  gap:48px;align-items:center;
}
.cta-inner h2{font-size:clamp(28px,3.6vw,42px);line-height:1.14;margin:16px 0 16px;}
.cta-inner p{color:rgba(245,246,242,.72);max-width:56ch;}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:28px;}
.cta-note{margin-top:22px;font-size:13px;color:rgba(245,246,242,.48);}
.cta-side{
  background:rgba(255,255,255,.04);
  border:1px solid rgba(200,249,74,.24);
  border-radius:var(--r-card);
  padding:30px;
}
.cta-side .row-line{
  display:flex;justify-content:space-between;gap:16px;
  padding:14px 0;border-bottom:1px solid rgba(255,255,255,.10);
  font-size:14.5px;color:rgba(245,246,242,.78);
}
.cta-side .row-line:last-child{border-bottom:none;}
.cta-side .row-line b{color:var(--neon);font-weight:600;}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--ink-950);color:rgba(245,246,242,.72);padding:72px 0 28px;border-top:1px solid rgba(200,249,74,.18);}
.footer-grid{
  display:grid;grid-template-columns:1.5fr 1fr 1fr 1.1fr;
  gap:44px;
}
.footer-brand .brand{margin-bottom:18px;}
.footer-brand p{font-size:14.5px;line-height:1.85;color:rgba(245,246,242,.58);max-width:34ch;}
.footer-title{
  font-size:13px;letter-spacing:.10em;text-transform:uppercase;
  color:#F5F6F2;font-weight:600;margin-bottom:18px;
}
.footer-list li{margin-bottom:11px;font-size:14.5px;}
.footer-list a{color:rgba(245,246,242,.62);}
.footer-list a:hover{color:var(--neon);}
.footer-contact li{color:rgba(245,246,242,.58);}
.footer-qr{
  margin-top:18px;width:120px;height:120px;border-radius:14px;
  border:1px dashed rgba(200,249,74,.42);
  display:grid;place-items:center;text-align:center;
  font-size:12.5px;line-height:1.6;color:rgba(245,246,242,.52);
  background:rgba(255,255,255,.02);
}
.footer-bottom{
  margin-top:52px;padding-top:22px;
  border-top:1px solid rgba(255,255,255,.10);
  display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;
  font-size:13px;color:rgba(245,246,242,.44);
}

/* ---------- 动效偏好 ---------- */
@keyframes slowShift{
  from{transform:scale(1.02) translate3d(0,0,0);}
  to{transform:scale(1.08) translate3d(-1.5%,-1.5%,0);}
}
@media (prefers-reduced-motion: reduce){
  *{animation:none !important;transition:none !important;scroll-behavior:auto !important;}
}

/* ---------- 响应式 ---------- */
@media (max-width:1023px){
  .burger{display:flex;}
  .nav-main{
    position:fixed;top:0;right:0;bottom:0;width:min(86vw,360px);
    background:var(--ink-950);
    border-left:1px solid rgba(200,249,74,.22);
    flex-direction:column;align-items:stretch;gap:4px;
    padding:96px 22px 32px;
    transform:translateX(102%);
    transition:transform .28s var(--ease);
    margin-left:0;z-index:95;
    overflow-y:auto;
  }
  .nav-main.is-open{transform:translateX(0);}
  .nav-link{padding:15px 12px;font-size:16px;border-bottom:1px solid rgba(255,255,255,.08);border-radius:0;}
  .nav-link::after{left:12px;transform:none;bottom:9px;}
  .nav-link:hover::after,.nav-link.is-active::after{width:34px;}
  .header-cta{display:none;}
  .split{grid-template-columns:1fr;gap:40px;}
  .split-figure{order:-1;}
  .step-row{grid-template-columns:1fr;gap:18px;}
  .dark-panel{grid-template-columns:1fr;padding:40px;gap:32px;}
  .faq-wrap{grid-template-columns:1fr;gap:32px;}
  .cta-inner{grid-template-columns:1fr;gap:32px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:36px;}
  .metrics{grid-template-columns:1fr 1fr;gap:28px;}
  .section{padding:72px 0;}
}
@media (max-width:640px){
  body{font-size:16px;}
  .container{padding:0 16px;}
  .cat-banner{padding:56px 0 62px;}
  .cat-banner h1{font-size:clamp(30px,8.4vw,40px);}
  .section{padding:60px 0;}
  .section-head{margin-bottom:34px;}
  .step-card{padding:24px 18px;}
  .dark-panel{padding:26px 18px;border-radius:18px;}
  .cta-side{padding:22px;}
  .footer-grid{grid-template-columns:1fr;gap:30px;}
  .metrics{grid-template-columns:1fr 1fr;gap:22px;padding:26px 0;}
  .faq-q{padding:18px 2px 18px 16px;font-size:15.5px;}
  .faq-a p{padding:0 18px 20px 16px;}
  .cta-actions .btn{width:100%;}
  .footer-bottom{flex-direction:column;}
}

/* roulang page: category2 */
:root{
  --ink-950:#0A0C10;
  --ink-800:#12161C;
  --ink-700:#1B2129;
  --paper:#F5F6F2;
  --paper-2:#ECEEE8;
  --neon:#C8F94A;
  --signal:#FF5A2B;
  --text-1:#14181D;
  --text-2:#5B6470;
  --line:rgba(20,24,29,.10);
  --line-dark:rgba(255,255,255,.10);
  --radius-card:18px;
  --radius-img:16px;
  --radius-input:12px;
  --radius-pill:999px;
  --shadow-soft:0 14px 34px rgba(10,12,16,.08);
  --shadow-lift:0 20px 46px rgba(10,12,16,.14);
  --shadow-neon:0 0 0 1px rgba(200,249,74,.5), 0 18px 42px rgba(200,249,74,.16);
  --ease:cubic-bezier(.22,.61,.36,1);
  --gutter:24px;
}

*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei","Source Han Sans SC","Hiragino Sans GB",sans-serif;
  font-size:17px;
  line-height:1.85;
  color:var(--text-1);
  background:var(--paper);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;height:auto;display:block;}
a{color:inherit;text-decoration:none;transition:color .2s var(--ease),opacity .2s var(--ease);}
a:hover{color:var(--text-1);}
button{font-family:inherit;cursor:pointer;border:0;background:none;color:inherit;}
h1,h2,h3,h4,p,ul,ol,figure{margin:0;}
ul,ol{padding:0;list-style:none;}
strong{font-weight:700;}
:focus-visible{outline:2px solid var(--neon);outline-offset:3px;border-radius:6px;}

.container{
  width:100%;
  max-width:1240px;
  margin:0 auto;
  padding:0 var(--gutter);
}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  padding:14px 28px;
  border-radius:var(--radius-pill);
  font-size:15px;
  font-weight:600;
  letter-spacing:.01em;
  line-height:1.2;
  white-space:nowrap;
  border:1px solid transparent;
  transition:transform .22s var(--ease),box-shadow .22s var(--ease),background-color .22s var(--ease),color .22s var(--ease),border-color .22s var(--ease);
}
.btn-primary{background:var(--neon);color:var(--ink-950);box-shadow:0 10px 26px rgba(200,249,74,.22);}
.btn-primary:hover{color:var(--ink-950);transform:translateY(-2px);box-shadow:0 16px 38px rgba(200,249,74,.34);}
.btn-ghost{border-color:rgba(255,255,255,.28);color:#fff;background:rgba(255,255,255,.04);}
.btn-ghost:hover{color:#fff;border-color:var(--neon);background:rgba(200,249,74,.10);transform:translateY(-2px);}
.btn-outline{border-color:var(--line);color:var(--text-1);background:#fff;}
.btn-outline:hover{border-color:var(--ink-950);transform:translateY(-2px);box-shadow:var(--shadow-soft);}
.btn-sm{padding:10px 20px;font-size:14px;}
.btn-block{width:100%;}
.link-arrow{
  display:inline-flex;align-items:center;gap:6px;font-size:15px;font-weight:600;color:var(--text-1);
  border-bottom:1px solid var(--line);padding-bottom:2px;
}
.link-arrow::after{content:"→";transition:transform .22s var(--ease);}
.link-arrow:hover{border-color:var(--neon);}
.link-arrow:hover::after{transform:translateX(4px);}

/* ---------- 头部导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:120;
  background:rgba(10,12,16,.94);
  border-bottom:1px solid rgba(200,249,74,.28);
  backdrop-filter:blur(10px);
  transition:padding .25s var(--ease),background-color .25s var(--ease);
}
.site-header.is-scrolled{background:rgba(10,12,16,.985);box-shadow:0 10px 30px rgba(0,0,0,.35);}
.header-inner{
  display:flex;align-items:center;justify-content:space-between;gap:20px;
  min-height:78px;padding-top:12px;padding-bottom:12px;
  transition:min-height .25s var(--ease);
}
.site-header.is-scrolled .header-inner{min-height:64px;}
.brand{display:flex;align-items:center;gap:12px;}
.brand-mark{
  display:inline-flex;align-items:center;justify-content:center;
  width:40px;height:40px;border-radius:12px;
  background:linear-gradient(135deg,var(--neon),#8FD21F);
  color:var(--ink-950);font-weight:800;font-size:15px;letter-spacing:.02em;
}
.brand-text{display:flex;flex-direction:column;line-height:1.25;}
.brand-name{color:#fff;font-size:16px;font-weight:700;letter-spacing:.01em;}
.brand-sub{color:rgba(255,255,255,.48);font-size:11px;letter-spacing:.14em;text-transform:uppercase;}
.nav-main{display:flex;align-items:center;gap:6px;}
.nav-link{
  position:relative;display:inline-block;
  padding:10px 14px;border-radius:var(--radius-pill);
  color:rgba(255,255,255,.72);font-size:15px;font-weight:500;
  transition:color .22s var(--ease),background-color .22s var(--ease);
}
.nav-link::after{
  content:"";position:absolute;left:50%;bottom:4px;width:0;height:2px;
  background:var(--neon);border-radius:2px;transform:translateX(-50%);
  transition:width .24s var(--ease);box-shadow:0 0 10px rgba(200,249,74,.8);
}
.nav-link:hover{color:#fff;background:rgba(255,255,255,.06);}
.nav-link:hover::after{width:20px;}
.nav-link.is-active{color:var(--neon);font-weight:600;}
.nav-link.is-active::after{width:26px;}
.header-cta{display:flex;align-items:center;gap:12px;}
.burger{
  display:none;flex-direction:column;justify-content:center;gap:5px;
  width:44px;height:44px;border-radius:12px;border:1px solid rgba(255,255,255,.16);
  background:rgba(255,255,255,.04);padding:0 11px;
}
.burger span{display:block;height:2px;width:100%;background:#fff;border-radius:2px;transition:transform .25s var(--ease),opacity .2s var(--ease);}
.burger.is-open span:nth-child(1){transform:translateY(7px) rotate(45deg);}
.burger.is-open span:nth-child(2){opacity:0;}
.burger.is-open span:nth-child(3){transform:translateY(-7px) rotate(-45deg);}

/* ---------- 通用板块 ---------- */
.section{padding:104px 0;}
.section--tight{padding:72px 0;}
.section--paper2{background:var(--paper-2);}
.section--dark{background:var(--ink-950);color:#fff;position:relative;overflow:hidden;}
.section--dark::before{
  content:"";position:absolute;inset:0;
  background-image:linear-gradient(rgba(200,249,74,.07) 1px,transparent 1px),linear-gradient(90deg,rgba(200,249,74,.07) 1px,transparent 1px);
  background-size:64px 64px;opacity:.7;pointer-events:none;
}
.section--dark > .container{position:relative;z-index:2;}
.eyebrow{
  display:inline-flex;align-items:center;gap:10px;
  font-size:12px;font-weight:600;letter-spacing:.16em;text-transform:uppercase;
  color:var(--text-2);margin-bottom:18px;
}
.eyebrow::before{content:"";width:26px;height:2px;background:var(--neon);border-radius:2px;}
.section--dark .eyebrow{color:rgba(255,255,255,.55);}
.section-head{max-width:760px;margin-bottom:56px;}
.section-head h2{
  font-size:clamp(26px,3.4vw,40px);font-weight:700;line-height:1.2;letter-spacing:-.01em;
  margin-bottom:16px;
}
.section-head p{color:var(--text-2);font-size:17px;}
.section--dark .section-head p{color:rgba(255,255,255,.66);}

/* ---------- 分类页首屏 ---------- */
.page-hero{
  position:relative;
  background:var(--ink-950);
  color:#fff;
  overflow:hidden;
  padding:88px 0 92px;
}
.page-hero::before{
  content:"";position:absolute;inset:0;
  background-image:url('/assets/images/backpic/back-2.webp');
  background-size:cover;background-position:center;
  opacity:.30;
}
.page-hero::after{
  content:"";position:absolute;inset:0;
  background:
    radial-gradient(900px 460px at 12% 18%, rgba(200,249,74,.20), transparent 62%),
    linear-gradient(180deg, rgba(10,12,16,.72) 0%, rgba(10,12,16,.94) 100%);
}
.page-hero .container{position:relative;z-index:3;}
.crumbs{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:rgba(255,255,255,.55);margin-bottom:26px;}
.crumbs a:hover{color:var(--neon);}
.crumbs span.sep{opacity:.5;}
.page-hero h1{
  font-size:clamp(34px,5vw,58px);
  font-weight:800;line-height:1.08;letter-spacing:-.02em;
  max-width:16em;margin-bottom:22px;
}
.page-hero h1 em{font-style:normal;color:var(--neon);}
.page-hero .lede{
  max-width:720px;font-size:18px;line-height:1.85;color:rgba(255,255,255,.74);margin-bottom:34px;
}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;align-items:center;}
.hero-tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:34px;}
.tag-pill{
  display:inline-flex;align-items:center;gap:8px;
  padding:8px 16px;border-radius:var(--radius-pill);
  border:1px solid rgba(255,255,255,.18);background:rgba(255,255,255,.04);
  font-size:13px;color:rgba(255,255,255,.78);
}
.tag-pill i{width:6px;height:6px;border-radius:50%;background:var(--neon);display:inline-block;box-shadow:0 0 8px rgba(200,249,74,.9);}

/* ---------- 指标 ---------- */
.metrics{display:grid;grid-template-columns:repeat(4,1fr);gap:22px;margin-top:-58px;position:relative;z-index:6;}
.metric{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-card);
  padding:26px 24px;box-shadow:var(--shadow-soft);
  transition:transform .22s var(--ease),box-shadow .22s var(--ease),border-color .22s var(--ease);
}
.metric:hover{transform:translateY(-3px);border-color:rgba(200,249,74,.75);box-shadow:var(--shadow-lift);}
.metric .num{
  font-family:Inter,system-ui,sans-serif;font-variant-numeric:tabular-nums;
  font-size:clamp(30px,3.4vw,42px);font-weight:800;line-height:1.05;letter-spacing:-.02em;color:var(--text-1);
}
.metric .num small{font-size:.46em;font-weight:600;color:var(--text-2);margin-left:4px;}
.metric .label{margin-top:8px;font-size:14px;color:var(--text-2);line-height:1.6;}

/* ---------- 编号条目 + sticky 侧卡 ---------- */
.layout-split{display:grid;grid-template-columns:minmax(0,1fr) 360px;gap:56px;align-items:start;}
.steps{position:relative;}
.step-item{
  position:relative;
  display:grid;grid-template-columns:76px minmax(0,1fr);gap:24px;
  padding:28px 0;
  border-bottom:1px solid var(--line);
}
.step-item:first-child{padding-top:0;}
.step-item:last-child{border-bottom:0;padding-bottom:0;}
.step-index{
  font-family:Inter,system-ui,sans-serif;font-variant-numeric:tabular-nums;
  font-size:38px;font-weight:800;line-height:1;letter-spacing:-.03em;
  color:transparent;-webkit-text-stroke:1.4px rgba(20,24,29,.34);
  transition:color .24s var(--ease),-webkit-text-stroke-color .24s var(--ease);
}
.step-item:hover .step-index{color:var(--neon);-webkit-text-stroke-color:transparent;}
.step-body h3{font-size:21px;font-weight:700;line-height:1.4;margin-bottom:10px;}
.step-body p{color:var(--text-2);font-size:16px;}
.step-meta{display:flex;flex-wrap:wrap;gap:8px;margin-top:14px;}
.chip{
  display:inline-flex;align-items:center;
  padding:5px 13px;border-radius:var(--radius-pill);
  font-size:12.5px;line-height:1.5;
  border:1px solid var(--line);background:var(--paper-2);color:var(--text-2);
}
.chip--signal{border-color:rgba(255,90,43,.42);color:var(--signal);background:rgba(255,90,43,.06);}
.chip--neon{border-color:rgba(200,249,74,.65);color:#4C6A05;background:rgba(200,249,74,.16);}

.side-card{
  position:sticky;top:110px;
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-card);
  padding:28px 26px;box-shadow:var(--shadow-soft);
}
.side-card h3{font-size:19px;font-weight:700;margin-bottom:6px;}
.side-card .side-note{font-size:13.5px;color:var(--text-2);margin-bottom:20px;}
.check-list li{
  display:flex;gap:12px;align-items:flex-start;
  padding:12px 0;border-bottom:1px dashed var(--line);font-size:15px;color:var(--text-1);
}
.check-list li:last-child{border-bottom:0;}
.check-list .tick{
  flex:0 0 20px;width:20px;height:20px;border-radius:6px;margin-top:5px;
  border:1px solid rgba(200,249,74,.85);background:rgba(200,249,74,.22);
  position:relative;
}
.check-list .tick::after{
  content:"";position:absolute;left:6px;top:2px;width:5px;height:10px;
  border-right:2px solid #4C6A05;border-bottom:2px solid #4C6A05;transform:rotate(40deg);
}
.side-card .side-actions{margin-top:22px;display:flex;flex-direction:column;gap:10px;}
.side-card .side-hint{font-size:12.5px;color:var(--text-2);line-height:1.7;margin-top:14px;}

/* ---------- 图文块 ---------- */
.media-block{display:grid;grid-template-columns:1.05fr .95fr;gap:0;align-items:stretch;border-radius:var(--radius-card);overflow:hidden;border:1px solid var(--line);background:#fff;box-shadow:var(--shadow-soft);}
.media-block .media-img{position:relative;min-height:380px;background:var(--paper-2);}
.media-block .media-img img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;}
.media-block .media-copy{padding:48px 46px;}
.media-block .media-copy h2{font-size:clamp(24px,2.6vw,32px);font-weight:700;line-height:1.24;margin-bottom:16px;}
.media-block .media-copy > p{color:var(--text-2);margin-bottom:24px;}
.point-list li{
  display:flex;gap:14px;padding:14px 0;border-top:1px solid var(--line);
}
.point-list li:first-child{border-top:0;padding-top:0;}
.point-list .dot{
  flex:0 0 8px;width:8px;height:8px;margin-top:11px;border-radius:2px;background:var(--neon);
  box-shadow:0 0 10px rgba(200,249,74,.85);
}
.point-list .txt strong{display:block;font-size:16px;margin-bottom:2px;}
.point-list .txt span{color:var(--text-2);font-size:15px;}

/* ---------- 场景两列 ---------- */
.scene-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:22px;}
.scene-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-card);
  padding:28px 26px;box-shadow:var(--shadow-soft);
  transition:transform .22s var(--ease),border-color .22s var(--ease),box-shadow .22s var(--ease);
}
.scene-card:hover{transform:translateY(-3px);border-color:rgba(200,249,74,.75);box-shadow:var(--shadow-lift);}
.scene-card h3{font-size:19px;font-weight:700;margin-bottom:10px;display:flex;align-items:center;gap:10px;}
.scene-card h3 span.badge-num{
  font-family:Inter,system-ui,sans-serif;font-size:12px;font-weight:700;color:var(--ink-950);
  background:var(--neon);border-radius:8px;padding:3px 8px;letter-spacing:.02em;
}
.scene-card p{color:var(--text-2);font-size:15.5px;}

/* ---------- FAQ ---------- */
.faq-list{border-top:1px solid var(--line);}
.faq-item{border-bottom:1px solid var(--line);}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:20px;
  padding:22px 0;text-align:left;font-size:17px;font-weight:600;color:var(--text-1);
  min-height:56px;transition:color .2s var(--ease);
}
.faq-q:hover{color:#3D5506;}
.faq-icon{
  flex:0 0 28px;width:28px;height:28px;border-radius:50%;border:1px solid var(--line);
  display:inline-flex;align-items:center;justify-content:center;position:relative;
  transition:transform .24s var(--ease),border-color .24s var(--ease),background-color .24s var(--ease);
}
.faq-icon::before,.faq-icon::after{content:"";position:absolute;background:var(--text-1);border-radius:2px;transition:transform .24s var(--ease),background-color .24s var(--ease);}
.faq-icon::before{width:11px;height:1.6px;}
.faq-icon::after{width:1.6px;height:11px;}
.faq-item.is-open .faq-icon{transform:rotate(180deg);border-color:rgba(200,249,74,.9);background:rgba(200,249,74,.18);}
.faq-item.is-open .faq-icon::before{background:#3D5506;}
.faq-item.is-open .faq-icon::after{transform:scaleY(0);background:#3D5506;}
.faq-a{max-height:0;overflow:hidden;transition:max-height .32s var(--ease);}
.faq-a p{
  padding:0 0 24px 16px;margin-left:16px;border-left:2px solid var(--neon);
  color:var(--text-2);font-size:16px;
}
.faq-item.is-open .faq-q{color:#3D5506;}

/* ---------- CTA ---------- */
.cta-band{
  position:relative;background:var(--ink-950);color:#fff;overflow:hidden;
  padding:88px 0;border-top:1px solid rgba(200,249,74,.25);
}
.cta-band::before{
  content:"";position:absolute;inset:0;
  background-image:url('/assets/images/backpic/back-3.png');
  background-size:cover;background-position:center;opacity:.16;
}
.cta-band::after{
  content:"";position:absolute;inset:0;
  background:radial-gradient(720px 380px at 78% 22%, rgba(200,249,74,.20), transparent 66%);
}
.cta-band .container{position:relative;z-index:3;display:grid;grid-template-columns:1.2fr .8fr;gap:48px;align-items:center;}
.cta-band h2{font-size:clamp(26px,3.4vw,40px);font-weight:700;line-height:1.22;letter-spacing:-.01em;margin-bottom:16px;}
.cta-band p{color:rgba(255,255,255,.7);max-width:560px;}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;align-items:center;}
.cta-note{font-size:12.5px;color:rgba(255,255,255,.45);margin-top:18px;}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--ink-950);color:rgba(255,255,255,.7);padding:72px 0 26px;border-top:1px solid rgba(200,249,74,.22);}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.1fr;gap:44px;}
.footer-brand .brand{margin-bottom:18px;}
.footer-brand p{font-size:14.5px;line-height:1.9;color:rgba(255,255,255,.56);max-width:340px;}
.footer-title{color:#fff;font-size:14px;font-weight:700;letter-spacing:.06em;margin-bottom:16px;}
.footer-list li{margin-bottom:11px;font-size:14.5px;}
.footer-list a{color:rgba(255,255,255,.62);}
.footer-list a:hover{color:var(--neon);}
.footer-contact li{color:rgba(255,255,255,.56);}
.footer-qr{
  margin-top:18px;width:120px;height:120px;border-radius:var(--radius-input);
  border:1px dashed rgba(255,255,255,.28);display:flex;align-items:center;justify-content:center;
  text-align:center;font-size:12.5px;line-height:1.6;color:rgba(255,255,255,.45);padding:10px;
}
.footer-bottom{
  margin-top:52px;padding-top:22px;border-top:1px solid rgba(255,255,255,.10);
  display:flex;flex-wrap:wrap;justify-content:space-between;gap:12px;
  font-size:13px;color:rgba(255,255,255,.42);
}

/* ---------- 响应式 ---------- */
@media (max-width:1180px){
  .layout-split{grid-template-columns:minmax(0,1fr) 320px;gap:40px;}
}
@media (max-width:1023px){
  .nav-main{
    position:fixed;top:0;right:0;height:100vh;width:min(340px,86vw);
    background:rgba(10,12,16,.985);border-left:1px solid rgba(200,249,74,.28);
    flex-direction:column;align-items:stretch;justify-content:flex-start;
    gap:4px;padding:96px 22px 32px;
    transform:translateX(104%);transition:transform .3s var(--ease);
    box-shadow:-22px 0 60px rgba(0,0,0,.5);z-index:130;
  }
  .nav-main.is-open{transform:translateX(0);}
  .nav-link{padding:14px 12px;font-size:16px;border-radius:12px;}
  .nav-link::after{display:none;}
  .nav-link.is-active{background:rgba(200,249,74,.12);}
  .burger{display:flex;z-index:140;}
  .header-cta .btn{display:none;}
  .section{padding:76px 0;}
  .section--tight{padding:58px 0;}
  .layout-split{grid-template-columns:1fr;gap:40px;}
  .side-card{position:static;}
  .media-block{grid-template-columns:1fr;}
  .media-block .media-img{min-height:280px;}
  .media-block .media-copy{padding:36px 28px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:34px;}
  .cta-band .container{grid-template-columns:1fr;gap:28px;}
}
@media (max-width:767px){
  body{font-size:16px;}
  .metrics{grid-template-columns:1fr 1fr;gap:16px;margin-top:-42px;}
  .scene-grid{grid-template-columns:1fr;}
  .page-hero{padding:64px 0 96px;}
  .page-hero .lede{font-size:16.5px;}
  .step-item{grid-template-columns:56px minmax(0,1fr);gap:16px;}
  .step-index{font-size:30px;}
  .section-head{margin-bottom:38px;}
}
@media (max-width:520px){
  :root{--gutter:16px;}
  .metrics{grid-template-columns:1fr;}
  .hero-actions .btn{width:100%;}
  .cta-actions .btn{width:100%;}
  .footer-grid{grid-template-columns:1fr;}
  .media-block .media-copy{padding:28px 20px;}
  .brand-sub{display:none;}
  .brand-name{font-size:15px;}
  .faq-q{font-size:16px;}
}
@media (prefers-reduced-motion:reduce){
  *{animation:none !important;transition:none !important;}
  html{scroll-behavior:auto;}
}

/* roulang page: category3 */
:root{
  --ink-950:#0A0C10;
  --ink-800:#12161C;
  --ink-700:#1A1F28;
  --paper:#F5F6F2;
  --paper-2:#ECEEE8;
  --neon:#C8F94A;
  --neon-dim:rgba(200,249,74,.16);
  --signal:#FF5A2B;
  --text-1:#14181D;
  --text-2:#5B6470;
  --text-3:#8A929C;
  --line:rgba(20,24,29,.10);
  --line-dark:rgba(255,255,255,.10);
  --white:#ffffff;
  --radius-card:18px;
  --radius-img:16px;
  --radius-sm:12px;
  --radius-pill:999px;
  --shadow-soft:0 10px 30px rgba(12,16,22,.08);
  --shadow-soft-lg:0 22px 50px rgba(12,16,22,.12);
  --shadow-neon:0 0 0 1px rgba(200,249,74,.55), 0 12px 34px rgba(200,249,74,.22);
  --ease:cubic-bezier(.22,.61,.36,1);
  --t:200ms var(--ease);
  --container:1240px;
  --gutter:24px;
}

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

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

body{
  margin:0;
  background:var(--paper);
  color:var(--text-1);
  font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC","Helvetica Neue",Arial,sans-serif;
  font-size:17px;
  line-height:1.85;
  font-weight:400;
  letter-spacing:.005em;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}

img{max-width:100%;display:block;height:auto;}
a{color:inherit;text-decoration:none;transition:color var(--t),opacity var(--t);}
a:hover{color:var(--text-1);}
button{font-family:inherit;cursor:pointer;border:0;background:none;}
ul,ol{margin:0;padding:0;list-style:none;}
p{margin:0 0 1em;}
h1,h2,h3,h4{margin:0;font-weight:700;line-height:1.2;letter-spacing:-.02em;}
:focus-visible{outline:2px solid var(--neon);outline-offset:3px;border-radius:4px;}

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

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;
  align-items:center;
  gap:9px;
  padding:15px 30px;
  border-radius:var(--radius-pill);
  font-size:15px;
  font-weight:600;
  letter-spacing:.01em;
  line-height:1;
  border:1px solid transparent;
  transition:transform var(--t),box-shadow var(--t),background var(--t),color var(--t),border-color var(--t);
  white-space:nowrap;
}
.btn i{font-size:14px;}
.btn-primary{
  background:var(--neon);
  color:#0A0C10;
  box-shadow:0 8px 22px rgba(200,249,74,.26);
}
.btn-primary:hover{
  color:#0A0C10;
  transform:translateY(-2px);
  box-shadow:var(--shadow-neon);
}
.btn-ghost{
  background:transparent;
  color:#F2F4EF;
  border-color:rgba(255,255,255,.30);
}
.btn-ghost:hover{
  color:var(--neon);
  border-color:var(--neon);
  transform:translateY(-2px);
}
.btn-outline{
  background:transparent;
  color:var(--text-1);
  border-color:rgba(20,24,29,.22);
}
.btn-outline:hover{
  border-color:var(--text-1);
  transform:translateY(-2px);
}
.btn-sm{padding:11px 22px;font-size:14px;}

.text-link{
  display:inline-flex;
  align-items:center;
  gap:8px;
  font-size:15px;
  font-weight:600;
  color:var(--text-1);
  border-bottom:1px solid rgba(20,24,29,.25);
  padding-bottom:3px;
}
.text-link i{transition:transform var(--t);font-size:13px;}
.text-link:hover{border-color:var(--neon);}
.text-link:hover i{transform:translateX(4px);}
.text-link.on-dark{color:#F2F4EF;border-color:rgba(255,255,255,.35);}
.text-link.on-dark:hover{color:var(--neon);border-color:var(--neon);}

/* ============ 头部导航 ============ */
.site-header{
  position:fixed;
  top:0;left:0;right:0;
  z-index:900;
  background:rgba(10,12,16,.94);
  border-bottom:1px solid rgba(200,249,74,.22);
  backdrop-filter:blur(10px);
  -webkit-backdrop-filter:blur(10px);
  transition:padding var(--t),background var(--t),box-shadow var(--t);
}
.site-header::after{
  content:"";
  position:absolute;
  left:0;right:0;bottom:-1px;
  height:1px;
  background:linear-gradient(90deg,transparent,rgba(200,249,74,.75),transparent);
  opacity:.9;
}
.site-header.is-scrolled{
  background:rgba(10,12,16,.98);
  box-shadow:0 10px 30px rgba(0,0,0,.35);
}
.header-inner{
  display:flex;
  align-items:center;
  gap:28px;
  min-height:78px;
  transition:min-height var(--t);
}
.site-header.is-scrolled .header-inner{min-height:66px;}

.brand{display:inline-flex;align-items:center;gap:12px;flex:0 0 auto;}
.brand-mark{
  width:42px;height:42px;
  display:inline-flex;align-items:center;justify-content:center;
  border-radius:12px;
  background:var(--neon);
  color:#0A0C10;
  font-weight:800;
  font-size:15px;
  letter-spacing:.02em;
  font-family:system-ui,-apple-system,"Inter",sans-serif;
  box-shadow:0 6px 18px rgba(200,249,74,.28);
}
.brand-text{display:flex;flex-direction:column;line-height:1.25;}
.brand-name{
  color:#F4F6F1;
  font-size:15.5px;
  font-weight:700;
  letter-spacing:-.01em;
}
.brand-sub{
  color:rgba(255,255,255,.42);
  font-size:11px;
  letter-spacing:.14em;
  text-transform:uppercase;
  font-family:system-ui,-apple-system,"Inter",sans-serif;
}

.nav-main{
  display:flex;
  align-items:center;
  gap:6px;
  margin-left:auto;
}
.nav-link{
  position:relative;
  padding:9px 14px;
  font-size:15px;
  font-weight:500;
  color:rgba(255,255,255,.72);
  border-radius:8px;
  transition:color var(--t),background var(--t);
}
.nav-link::after{
  content:"";
  position:absolute;
  left:50%;bottom:2px;
  height:2px;width:0;
  background:var(--neon);
  border-radius:2px;
  transform:translateX(-50%);
  transition:width var(--t);
}
.nav-link:hover{color:#fff;background:rgba(255,255,255,.06);}
.nav-link:hover::after{width:22px;}
.nav-link.is-active{color:var(--neon);}
.nav-link.is-active::after{width:26px;box-shadow:0 0 10px rgba(200,249,74,.8);}

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

.burger{
  display:none;
  width:44px;height:44px;
  flex-direction:column;
  align-items:center;
  justify-content:center;
  gap:5px;
  border-radius:10px;
  border:1px solid rgba(255,255,255,.18);
  margin-left:auto;
  transition:border-color var(--t),background var(--t);
}
.burger span{
  display:block;
  width:18px;height:2px;
  background:#F4F6F1;
  border-radius:2px;
  transition:transform var(--t),opacity var(--t),background var(--t);
}
.burger:hover{border-color:var(--neon);background:rgba(200,249,74,.08);}
.burger.is-open span:nth-child(1){transform:translateY(7px) rotate(45deg);background:var(--neon);}
.burger.is-open span:nth-child(2){opacity:0;}
.burger.is-open span:nth-child(3){transform:translateY(-7px) rotate(-45deg);background:var(--neon);}

/* ============ 面包屑 ============ */
.crumb-bar{
  background:var(--ink-950);
  padding:104px 0 18px;
}
.crumb{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:10px;
  font-size:13px;
  color:rgba(255,255,255,.46);
}
.crumb a{color:rgba(255,255,255,.72);}
.crumb a:hover{color:var(--neon);}
.crumb i{font-size:9px;opacity:.6;}
.crumb .current{color:var(--neon);}

/* ============ Banner ============ */
.page-banner{
  position:relative;
  background:var(--ink-950);
  color:#F4F6F1;
  padding:44px 0 88px;
  overflow:hidden;
}
.page-banner .bg{
  position:absolute;
  inset:0;
  background-image:url("/assets/images/backpic/back-2.webp");
  background-size:cover;
  background-position:center;
  opacity:.30;
  filter:saturate(.85);
  animation:slowPan 26s ease-in-out infinite alternate;
}
@keyframes slowPan{
  from{transform:scale(1.04) translate3d(0,0,0);}
  to{transform:scale(1.12) translate3d(-1.5%,-1.2%,0);}
}
.page-banner .grid-lines{
  position:absolute;
  inset:0;
  background-image:linear-gradient(rgba(200,249,74,.07) 1px,transparent 1px),
                   linear-gradient(90deg,rgba(200,249,74,.07) 1px,transparent 1px);
  background-size:64px 64px;
  mask-image:linear-gradient(180deg,rgba(0,0,0,.6),transparent 88%);
  -webkit-mask-image:linear-gradient(180deg,rgba(0,0,0,.6),transparent 88%);
}
.page-banner .veil{
  position:absolute;
  inset:0;
  background:
    radial-gradient(720px 380px at 82% 12%, rgba(200,249,74,.16), transparent 62%),
    linear-gradient(180deg,rgba(10,12,16,.72) 0%,rgba(10,12,16,.94) 68%,var(--paper) 100%);
}
.banner-inner{position:relative;z-index:2;max-width:860px;}

.eyebrow{
  display:inline-flex;
  align-items:center;
  gap:10px;
  font-size:12px;
  font-weight:600;
  letter-spacing:.08em;
  text-transform:uppercase;
  color:var(--neon);
  margin-bottom:20px;
  font-family:system-ui,-apple-system,"Inter",sans-serif;
}
.eyebrow::before{
  content:"";
  width:26px;height:2px;
  background:var(--neon);
  border-radius:2px;
  box-shadow:0 0 10px rgba(200,249,74,.85);
}
.page-banner h1{
  font-size:clamp(34px,5vw,60px);
  font-weight:800;
  line-height:1.06;
  letter-spacing:-.02em;
  color:#FBFCF8;
}
.page-banner h1 em{
  font-style:normal;
  color:var(--neon);
}
.banner-lead{
  margin-top:22px;
  font-size:17px;
  line-height:1.9;
  color:rgba(244,246,241,.76);
  max-width:760px;
}
.banner-actions{
  display:flex;
  flex-wrap:wrap;
  gap:14px;
  margin-top:32px;
}
.banner-stats{
  display:grid;
  grid-template-columns:repeat(4,minmax(0,1fr));
  gap:20px;
  margin-top:52px;
  padding-top:30px;
  border-top:1px solid rgba(255,255,255,.14);
}
.stat-num{
  font-size:clamp(30px,3.4vw,44px);
  font-weight:800;
  color:var(--neon);
  line-height:1;
  font-family:system-ui,-apple-system,"Inter",sans-serif;
  font-variant-numeric:tabular-nums;
  letter-spacing:-.02em;
}
.stat-label{
  margin-top:10px;
  font-size:13px;
  color:rgba(244,246,241,.58);
  letter-spacing:.02em;
}

/* ============ 通用板块 ============ */
.section{padding:104px 0;}
.section-sm{padding:72px 0;}
.section-alt{background:var(--paper-2);}
.section-dark{
  background:var(--ink-950);
  color:#F4F6F1;
  position:relative;
  overflow:hidden;
}
.section-dark::before{
  content:"";
  position:absolute;
  top:0;left:0;right:0;
  height:1px;
  background:linear-gradient(90deg,transparent,rgba(200,249,74,.6),transparent);
}
.section-dark .lead{color:rgba(244,246,241,.68);}

.section-head{max-width:780px;margin-bottom:52px;}
.section-head.narrow{max-width:660px;}
.section-title{
  font-size:clamp(26px,3.4vw,40px);
  font-weight:700;
  line-height:1.18;
  letter-spacing:-.02em;
}
.section-title .tick{
  display:inline-block;
  width:10px;height:10px;
  border-radius:3px;
  background:var(--neon);
  margin-right:14px;
  transform:translateY(-3px);
  box-shadow:0 0 12px rgba(200,249,74,.75);
}
.lead{
  margin-top:18px;
  font-size:16.5px;
  line-height:1.9;
  color:var(--text-2);
}
.on-dark .lead{color:rgba(244,246,241,.68);}

/* ============ 要点矩阵 ============ */
.matrix{
  display:grid;
  grid-template-columns:repeat(2,minmax(0,1fr));
  gap:22px 30px;
}
.matrix-item{
  display:flex;
  gap:18px;
  padding:26px 26px;
  background:var(--white);
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  box-shadow:var(--shadow-soft);
  transition:transform var(--t),box-shadow var(--t),border-color var(--t);
}
.matrix-item:hover{
  transform:translateY(-3px);
  border-color:rgba(200,249,74,.75);
  box-shadow:var(--shadow-soft-lg);
}
.matrix-icon{
  flex:0 0 auto;
  width:44px;height:44px;
  display:flex;align-items:center;justify-content:center;
  border-radius:12px;
  background:var(--neon-dim);
  color:#4B6B00;
  border:1px solid rgba(200,249,74,.6);
  font-size:17px;
}
.matrix-body h3{
  font-size:18px;
  font-weight:600;
  margin-bottom:8px;
}
.matrix-body p{
  margin:0;
  font-size:15px;
  line-height:1.8;
  color:var(--text-2);
}

/* ============ 图文块 ============ */
.split{
  display:grid;
  grid-template-columns:1.05fr .95fr;
  gap:56px;
  align-items:center;
}
.split.reverse{grid-template-columns:.95fr 1.05fr;}
.split.reverse .split-media{order:2;}
.split-media{
  position:relative;
  border-radius:var(--radius-img);
  overflow:hidden;
  border:1px solid var(--line);
  box-shadow:var(--shadow-soft-lg);
  background:var(--paper-2);
}
.split-media img{
  width:100%;
  aspect-ratio:16/10;
  object-fit:cover;
  transition:transform 420ms var(--ease);
}
.split-media:hover img{transform:scale(1.03);}
.split-body h2{
  font-size:clamp(24px,2.8vw,34px);
  margin-bottom:18px;
  line-height:1.22;
}
.split-body p{
  font-size:16px;
  color:var(--text-2);
  line-height:1.9;
}

.check-list{margin-top:24px;display:grid;gap:12px;}
.check-list li{
  position:relative;
  padding-left:28px;
  font-size:15.5px;
  color:var(--text-1);
  line-height:1.75;
}
.check-list li::before{
  content:"";
  position:absolute;
  left:2px;top:11px;
  width:10px;height:10px;
  border-radius:3px;
  background:var(--neon);
  box-shadow:0 0 10px rgba(200,249,74,.6);
}

/* ============ 步骤 ============ */
.steps{
  display:grid;
  grid-template-columns:repeat(4,minmax(0,1fr));
  gap:24px;
  position:relative;
  margin-top:12px;
}
.steps::before{
  content:"";
  position:absolute;
  top:29px;left:6%;right:6%;
  height:1px;
  background:linear-gradient(90deg,rgba(200,249,74,.65),rgba(200,249,74,.15));
}
.step{
  position:relative;
  padding-top:0;
}
.step-no{
  position:relative;
  z-index:2;
  width:58px;height:58px;
  display:flex;align-items:center;justify-content:center;
  border-radius:50%;
  background:var(--ink-950);
  color:var(--neon);
  font-weight:800;
  font-size:16px;
  font-family:system-ui,-apple-system,"Inter",sans-serif;
  font-variant-numeric:tabular-nums;
  border:1px solid rgba(200,249,74,.5);
  box-shadow:0 0 0 6px var(--paper-2);
}
.section-dark .step-no{box-shadow:0 0 0 6px var(--ink-950);}
.step h3{
  margin:22px 0 10px;
  font-size:18px;
  font-weight:600;
}
.step p{
  font-size:15px;
  color:var(--text-2);
  line-height:1.8;
  margin:0 0 14px;
}
.tag{
  display:inline-block;
  padding:5px 12px;
  border-radius:var(--radius-pill);
  font-size:12.5px;
  font-weight:600;
  letter-spacing:.02em;
  background:rgba(20,24,29,.05);
  border:1px solid var(--line);
  color:var(--text-2);
}
.tag.signal{
  color:#B23A12;
  border-color:rgba(255,90,43,.55);
  background:rgba(255,90,43,.08);
}
.tag.neon{
  color:#4B6B00;
  border-color:rgba(200,249,74,.75);
  background:rgba(200,249,74,.16);
}
.section-dark .tag{
  background:rgba(255,255,255,.07);
  border-color:rgba(255,255,255,.18);
  color:rgba(244,246,241,.72);
}
.section-dark .tag.neon{
  color:var(--neon);
  border-color:rgba(200,249,74,.55);
  background:rgba(200,249,74,.10);
}

/* ============ 设备对照表 ============ */
.table-wrap{
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  background:var(--white);
  overflow:hidden;
  box-shadow:var(--shadow-soft);
}
table.cmp{
  width:100%;
  border-collapse:collapse;
  margin:0;
  background:transparent;
}
table.cmp th,
table.cmp td{
  padding:18px 22px;
  text-align:left;
  font-size:15px;
  line-height:1.7;
  border:0;
  border-bottom:1px solid var(--line);
  background:transparent;
}
table.cmp thead th{
  font-size:13px;
  letter-spacing:.06em;
  text-transform:uppercase;
  color:var(--text-3);
  font-weight:700;
  font-family:system-ui,-apple-system,"Inter",sans-serif;
  background:var(--paper-2);
  border-bottom:1px solid var(--line);
}
table.cmp tbody tr:last-child td{border-bottom:0;}
table.cmp tbody tr:hover{background:rgba(200,249,74,.08);}
table.cmp td strong{font-weight:600;color:var(--text-1);}
table.cmp td span.dim{color:var(--text-2);}

/* ============ FAQ ============ */
.faq-grid{
  display:grid;
  grid-template-columns:5fr 7fr;
  gap:56px;
  align-items:start;
}
.faq-list{
  display:grid;
  gap:12px;
}
.faq-item{
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  background:var(--white);
  overflow:hidden;
  transition:border-color var(--t),box-shadow var(--t);
}
.faq-item.is-open{
  border-color:rgba(200,249,74,.8);
  box-shadow:var(--shadow-soft);
}
.faq-q{
  width:100%;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:18px;
  padding:20px 24px;
  min-height:60px;
  text-align:left;
  font-size:16.5px;
  font-weight:600;
  color:var(--text-1);
  line-height:1.55;
  transition:color var(--t);
}
.faq-q:hover{color:#3F5B00;}
.faq-icon{
  flex:0 0 auto;
  width:28px;height:28px;
  display:flex;align-items:center;justify-content:center;
  border-radius:50%;
  border:1px solid var(--line);
  font-size:13px;
  color:var(--text-2);
  transition:transform var(--t),background var(--t),color var(--t),border-color var(--t);
}
.faq-item.is-open .faq-icon{
  transform:rotate(45deg);
  background:var(--neon);
  border-color:var(--neon);
  color:#0A0C10;
}
.faq-a{
  max-height:0;
  overflow:hidden;
  transition:max-height 300ms var(--ease);
}
.faq-a-inner{
  padding:0 24px 24px 40px;
  font-size:15.5px;
  line-height:1.9;
  color:var(--text-2);
  border-left:2px solid var(--neon);
  margin-left:24px;
  padding-right:24px;
}
.faq-item.is-open .faq-a-inner{margin-left:24px;}

.faq-aside{
  position:sticky;
  top:110px;
  padding:30px;
  border-radius:var(--radius-card);
  border:1px solid var(--line);
  background:var(--white);
  box-shadow:var(--shadow-soft);
}
.faq-aside h3{
  font-size:20px;
  margin-bottom:14px;
}
.faq-aside p{
  font-size:15px;
  color:var(--text-2);
  line-height:1.85;
}
.aside-list{
  margin-top:20px;
  display:grid;
  gap:0;
}
.aside-list a{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:12px;
  padding:14px 0;
  font-size:15px;
  font-weight:500;
  border-bottom:1px solid var(--line);
  color:var(--text-1);
}
.aside-list a:last-child{border-bottom:0;}
.aside-list a i{font-size:12px;color:var(--text-3);transition:transform var(--t),color var(--t);}
.aside-list a:hover{color:#3F5B00;}
.aside-list a:hover i{transform:translateX(4px);color:var(--neon);}

/* ============ CTA ============ */
.cta-band{
  position:relative;
  background:var(--ink-950);
  color:#F4F6F1;
  padding:88px 0;
  overflow:hidden;
}
.cta-band .cta-bg{
  position:absolute;
  inset:0;
  background-image:url("/assets/images/backpic/back-3.png");
  background-size:cover;
  background-position:center;
  opacity:.18;
}
.cta-band .cta-veil{
  position:absolute;
  inset:0;
  background:
    radial-gradient(620px 320px at 16% 20%, rgba(200,249,74,.18), transparent 62%),
    linear-gradient(180deg,rgba(10,12,16,.86),rgba(10,12,16,.97));
}
.cta-inner{position:relative;z-index:2;}
.cta-band h2{
  font-size:clamp(26px,3.4vw,40px);
  line-height:1.18;
  max-width:760px;
}
.cta-band p{
  margin-top:16px;
  font-size:16.5px;
  line-height:1.9;
  color:rgba(244,246,241,.72);
  max-width:680px;
}
.cta-actions{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:20px;
  margin-top:32px;
}
.cta-note{
  margin-top:26px;
  font-size:13px;
  color:rgba(244,246,241,.44);
  letter-spacing:.01em;
}

/* ============ 页脚 ============ */
.site-footer{
  background:var(--ink-950);
  color:rgba(244,246,241,.72);
  padding:72px 0 0;
  position:relative;
}
.site-footer::before{
  content:"";
  position:absolute;
  top:0;left:0;right:0;
  height:1px;
  background:linear-gradient(90deg,transparent,rgba(200,249,74,.55),transparent);
}
.footer-grid{
  display:grid;
  grid-template-columns:1.6fr 1fr 1fr 1.2fr;
  gap:44px;
  padding-bottom:52px;
}
.footer-brand .brand{margin-bottom:18px;}
.footer-brand p{
  font-size:14.5px;
  line-height:1.85;
  color:rgba(244,246,241,.56);
  margin:0;
  max-width:340px;
}
.footer-title{
  font-size:13px;
  font-weight:700;
  letter-spacing:.08em;
  text-transform:uppercase;
  color:#F4F6F1;
  margin:0 0 18px;
  font-family:system-ui,-apple-system,"Inter",sans-serif;
}
.footer-list{display:grid;gap:11px;}
.footer-list a{
  font-size:14.5px;
  color:rgba(244,246,241,.6);
  transition:color var(--t),padding-left var(--t);
}
.footer-list a:hover{color:var(--neon);padding-left:4px;}
.footer-contact li{font-size:14.5px;color:rgba(244,246,241,.6);}
.footer-qr{
  margin-top:20px;
  width:132px;height:132px;
  display:flex;align-items:center;justify-content:center;
  text-align:center;
  border:1px dashed rgba(200,249,74,.45);
  border-radius:14px;
  color:rgba(200,249,74,.8);
  font-size:12.5px;
  line-height:1.6;
  background:rgba(200,249,74,.05);
  padding:10px;
}
.footer-bottom{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  justify-content:space-between;
  gap:12px;
  padding:22px 0 26px;
  border-top:1px solid rgba(255,255,255,.10);
  font-size:13px;
  color:rgba(244,246,241,.42);
}

/* ============ 响应式 ============ */
@media screen and (max-width:1023px){
  .nav-main{
    position:fixed;
    top:0;right:0;
    width:min(320px,86vw);
    height:100vh;
    flex-direction:column;
    align-items:stretch;
    gap:4px;
    padding:104px 24px 32px;
    background:rgba(10,12,16,.985);
    border-left:1px solid rgba(200,249,74,.25);
    box-shadow:-20px 0 50px rgba(0,0,0,.5);
    transform:translateX(105%);
    transition:transform 280ms var(--ease);
    margin-left:0;
    z-index:950;
  }
  .nav-main.is-open{transform:translateX(0);}
  .nav-link{
    padding:15px 16px;
    font-size:16px;
    border-radius:12px;
  }
  .nav-link::after{display:none;}
  .nav-link.is-active{background:rgba(200,249,74,.12);}
  .burger{display:flex;order:3;}
  .header-cta{margin-left:14px;}
  .header-cta .btn{display:none;}
  .split,.split.reverse{grid-template-columns:1fr;gap:34px;}
  .split.reverse .split-media{order:0;}
  .faq-grid{grid-template-columns:1fr;gap:34px;}
  .faq-aside{position:static;}
  .steps{grid-template-columns:repeat(2,minmax(0,1fr));gap:30px 24px;}
  .steps::before{display:none;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:34px;}
}

@media screen and (max-width:767px){
  body{font-size:16px;}
  .container{padding:0 16px;}
  .section{padding:70px 0;}
  .section-sm{padding:54px 0;}
  .crumb-bar{padding:96px 0 14px;}
  .page-banner{padding:36px 0 68px;}
  .banner-stats{grid-template-columns:repeat(2,minmax(0,1fr));gap:22px;}
  .matrix{grid-template-columns:1fr;gap:16px;}
  .matrix-item{padding:20px;}
  .banner-actions .btn{width:100%;justify-content:center;}
  .cta-actions .btn{width:100%;justify-content:center;}
  .cta-actions .text-link{width:100%;justify-content:center;}
  .faq-q{font-size:15.5px;padding:18px 18px;}
  .faq-a-inner{margin-left:16px;padding:0 18px 20px 22px;}
}

@media screen and (max-width:519px){
  .steps{grid-template-columns:1fr;gap:26px;}
  .step-no{width:50px;height:50px;font-size:15px;}
  .footer-grid{grid-template-columns:1fr;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
  .brand-name{font-size:14px;}
  .brand-sub{display:none;}
  .page-banner h1{font-size:clamp(28px,8.6vw,36px);}
}

@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{
    animation-duration:.001ms !important;
    animation-iteration-count:1 !important;
    transition-duration:.001ms !important;
    scroll-behavior:auto !important;
  }
  .page-banner .bg{animation:none;}
}