/* roulang page: index */
:root{
  --bg:#0D0A12;
  --bg-soft:#141020;
  --panel:#1A1428;
  --line:rgba(255,255,255,.08);
  --text:#F2F0F7;
  --text-dim:#A79FB8;
  --primary:#C8FF3D;
  --primary-ink:#0D0A12;
  --secondary:#7A4DFF;
  --accent:#FF3D8B;
  --warn:#FFB020;
  --radius-card:18px;
  --radius-btn:999px;
  --radius-input:12px;
  --radius-badge:6px;
  --shadow-card:0 8px 24px rgba(0,0,0,.45);
  --shadow-card-hover:0 14px 34px rgba(0,0,0,.55);
  --container:1200px;
  --font-cn:"PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,sans-serif;
  --font-num:"Oswald","Barlow Condensed","PingFang SC",sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:var(--font-cn);
  font-size:16px;
  line-height:1.8;
  color:var(--text);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;display:block;border:0}
a{color:inherit;text-decoration:none;transition:color .18s ease,background .18s ease,transform .18s ease}
a:hover{color:var(--primary)}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4,p,blockquote,figure{margin:0}
button,input,select,textarea{font-family:inherit;font-size:inherit;color:inherit}
:focus-visible{outline:2px solid var(--primary);outline-offset:3px;border-radius:6px}
::selection{background:var(--primary);color:var(--primary-ink)}

/* Foundation 覆盖 */
.button,button.button{
  background-image:none!important;
  background-color:var(--primary);
  color:var(--primary-ink);
  border-radius:var(--radius-btn);
  font-weight:600;
  box-shadow:none;
}
.button:hover,button.button:hover{background-color:#d8ff6a;color:var(--primary-ink)}
.callout{background:var(--panel);border:1px solid var(--line);color:var(--text)}
.accordion{background:transparent}
.accordion-item{background:transparent;border:0}
.accordion-title{border:0}
.accordion-content{background:transparent;border:0;color:var(--text)}
.grid-container{padding-left:20px;padding-right:20px}

/* 容器 */
.rl-container{width:100%;max-width:var(--container);margin:0 auto;padding-left:20px;padding-right:20px}
@media (min-width:1024px){.rl-container{padding-left:28px;padding-right:28px}}

/* 按钮 */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:46px;padding:0 24px;
  border-radius:var(--radius-btn);
  font-size:15px;font-weight:600;letter-spacing:.02em;
  border:1px solid transparent;cursor:pointer;
  transition:transform .18s ease,box-shadow .18s ease,background .18s ease,color .18s ease,border-color .18s ease;
  white-space:nowrap;
}
.btn i{font-size:14px}
.btn--primary{background:var(--primary);color:var(--primary-ink)}
.btn--primary:hover{background:#d8ff6a;color:var(--primary-ink);box-shadow:0 0 18px rgba(200,255,61,.35);transform:translateY(-2px)}
.btn--ghost{background:transparent;color:var(--text);border-color:rgba(255,255,255,.22)}
.btn--ghost:hover{color:var(--primary);border-color:var(--primary);transform:translateY(-2px)}
.btn--lg{height:52px;padding:0 30px;font-size:16px}
.btn--block{width:100%}

/* 头部导航 */
.site-header{
  position:sticky;top:0;z-index:80;
  background:rgba(13,10,18,.86);
  -webkit-backdrop-filter:blur(12px);
  backdrop-filter:blur(12px);
  border-bottom:1px solid var(--line);
}
.nav-inner{display:flex;align-items:center;gap:18px;height:68px}
.brand{display:flex;align-items:center;gap:10px;flex-shrink:0}
.brand__mark{
  width:34px;height:34px;border-radius:10px;
  display:grid;place-items:center;
  background:linear-gradient(135deg,var(--primary),var(--secondary));
  color:var(--primary-ink);font-family:var(--font-num);font-weight:700;font-size:15px;letter-spacing:.02em;
}
.brand__name{font-size:18px;font-weight:900;letter-spacing:-.01em;color:var(--text);line-height:1.2}
.brand__name em{font-style:normal;color:var(--primary)}
.nav-links{display:none}
.nav-cta{display:none}
.nav-toggle{
  margin-left:auto;width:42px;height:42px;border-radius:12px;
  display:inline-flex;align-items:center;justify-content:center;
  background:rgba(255,255,255,.05);border:1px solid var(--line);color:var(--text);cursor:pointer;
}
.nav-toggle:hover{color:var(--primary);border-color:rgba(200,255,61,.45)}
@media (min-width:1024px){
  .nav-links{display:flex;align-items:center;gap:2px;margin-left:auto}
  .nav-links a{
    position:relative;padding:9px 12px;border-radius:9px;
    font-size:15px;font-weight:500;color:var(--text-dim);
  }
  .nav-links a:hover{color:var(--text);background:rgba(255,255,255,.05)}
  .nav-links a.is-active{color:var(--text)}
  .nav-links a.is-active::after{
    content:"";position:absolute;left:12px;right:12px;bottom:2px;height:2px;border-radius:2px;background:var(--primary);
  }
  .nav-cta{display:inline-flex;margin-left:10px}
  .nav-toggle{display:none}
}
.nav-drawer{
  display:none;
  border-top:1px solid var(--line);
  background:var(--bg-soft);
  padding:12px 0 18px;
}
.nav-drawer.is-open{display:block}
.nav-drawer a{
  display:flex;align-items:center;justify-content:space-between;
  padding:13px 4px;font-size:15px;color:var(--text-dim);border-bottom:1px solid var(--line);
}
.nav-drawer a:last-child{border-bottom:0}
.nav-drawer a.is-active{color:var(--primary)}
.nav-drawer a i{font-size:12px;opacity:.6}
@media (min-width:1024px){.nav-drawer{display:none!important}}

/* Hero */
.hero{position:relative;overflow:hidden;padding:52px 0 72px}
.hero__bg{
  position:absolute;inset:0;
  background-image:url('/assets/images/backpic/back-1.webp');
  background-size:cover;background-position:center;
  opacity:.34;
}
.hero::before{
  content:"";position:absolute;inset:0;
  background:linear-gradient(115deg,rgba(13,10,18,.97) 8%,rgba(13,10,18,.78) 46%,rgba(26,20,40,.62) 100%);
}
.hero__inner{position:relative;z-index:2;display:grid;gap:40px}
@media (min-width:1024px){
  .hero{padding:72px 0 96px}
  .hero__inner{grid-template-columns:1.08fr .92fr;align-items:center;gap:56px}
}
.hero__tag{
  display:inline-flex;align-items:center;gap:8px;
  height:32px;padding:0 14px;border-radius:var(--radius-btn);
  background:rgba(122,77,255,.18);border:1px solid rgba(122,77,255,.5);
  color:#D9CBFF;font-size:13px;font-weight:500;
}
.hero__tag i{color:var(--primary);font-size:11px}
.hero__title{
  margin-top:20px;
  font-size:32px;line-height:1.25;font-weight:900;letter-spacing:-.02em;
}
.hero__title span{color:var(--primary)}
@media (min-width:1024px){.hero__title{font-size:56px;line-height:1.14}}
.hero__sub{margin-top:18px;font-size:16px;color:var(--text-dim);max-width:560px}
.hero__actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:30px}
.hero__meta{display:flex;flex-wrap:wrap;gap:14px 28px;margin-top:34px}
.hero__meta li{display:flex;align-items:baseline;gap:8px;font-size:13px;color:var(--text-dim)}
.hero__meta b{font-family:var(--font-num);font-size:24px;font-weight:600;color:var(--primary);line-height:1}
.hero__figure{position:relative}
.hero__frame{
  position:relative;border-radius:var(--radius-card);overflow:hidden;
  border:1px solid var(--line);box-shadow:var(--shadow-card);
  background:var(--panel);
}
.hero__frame img{width:100%;height:260px;object-fit:cover}
@media (min-width:768px){.hero__frame img{height:340px}}
@media (min-width:1024px){.hero__frame img{height:420px}}
.hero__frame-tag{
  position:absolute;left:16px;top:16px;
  height:28px;padding:0 12px;border-radius:var(--radius-badge);
  display:inline-flex;align-items:center;
  background:var(--primary);color:var(--primary-ink);font-size:12px;font-weight:700;
}
.hero__stat{
  position:absolute;right:16px;bottom:-22px;
  background:var(--panel);border:1px solid var(--line);border-radius:14px;
  padding:14px 18px;box-shadow:var(--shadow-card);min-width:150px;
}
.hero__stat b{display:block;font-family:var(--font-num);font-size:30px;font-weight:700;color:var(--primary);line-height:1}
.hero__stat span{display:block;margin-top:4px;font-size:12px;color:var(--text-dim)}
.hero__slice{
  position:absolute;left:0;right:0;bottom:-1px;height:38px;
  background:var(--bg-soft);
  clip-path:polygon(0 100%,100% 0,100% 100%);
  z-index:3;
}
@media (max-width:767px){.hero__slice{height:22px}}

/* 板块通用 */
.section{padding:68px 0}
@media (min-width:1024px){.section{padding:92px 0}}
.section--soft{background:var(--bg-soft)}
.section--dots{
  background:
    radial-gradient(circle at 1px 1px,rgba(255,255,255,.05) 1px,transparent 0) 0 0/22px 22px,
    var(--bg-soft);
}
.section-head{max-width:720px;margin-bottom:38px}
.section-head--row{display:flex;flex-wrap:wrap;gap:18px;align-items:flex-end;justify-content:space-between;max-width:none}
.section-kicker{
  position:relative;display:inline-block;padding-left:14px;
  font-size:13px;font-weight:600;letter-spacing:.12em;color:var(--primary);text-transform:uppercase;
}
.section-kicker::before{
  content:"";position:absolute;left:0;top:50%;transform:translateY(-50%);
  width:4px;height:16px;border-radius:2px;background:var(--secondary);
}
.section-head h2{
  margin-top:12px;
  font-size:24px;line-height:1.35;font-weight:800;letter-spacing:-.02em;
}
@media (min-width:1024px){.section-head h2{font-size:34px}}
.section-lead{margin-top:14px;color:var(--text-dim);font-size:15px}
.link-more{
  display:inline-flex;align-items:center;gap:8px;
  font-size:14px;font-weight:600;color:var(--primary);
}
.link-more:hover{gap:12px}
.link-more i{font-size:12px}

/* 玩法步骤 */
.steps{display:grid;gap:20px}
@media (min-width:768px){.steps{grid-template-columns:repeat(2,1fr)}}
@media (min-width:1024px){.steps{grid-template-columns:repeat(4,1fr);gap:0}}
.step{
  position:relative;
  background:var(--panel);border:1px solid var(--line);border-radius:var(--radius-card);
  padding:26px 22px 24px;
  box-shadow:var(--shadow-card);
  transition:transform .18s ease,box-shadow .18s ease,border-color .18s ease;
}
.step:hover{transform:translateY(-2px);box-shadow:var(--shadow-card-hover);border-color:rgba(200,255,61,.55)}
@media (min-width:1024px){
  .step{border-radius:0;border-left:0;box-shadow:none;background:transparent}
  .step:first-child{border-left:1px solid var(--line);border-radius:var(--radius-card) 0 0 var(--radius-card)}
  .step:last-child{border-radius:0 var(--radius-card) var(--radius-card) 0}
  .step:hover{transform:translateY(-2px);box-shadow:var(--shadow-card)}
}
.step__num{
  display:block;font-family:var(--font-num);font-size:40px;font-weight:700;line-height:1;
  color:transparent;-webkit-text-stroke:1px rgba(200,255,61,.6);
}
@media (min-width:1024px){.step__num{font-size:46px}}
.step h3{margin-top:16px;font-size:18px;font-weight:700}
.step p{margin-top:10px;font-size:14px;color:var(--text-dim)}
.step__line{display:none}
@media (min-width:1024px){
  .step__line{display:block;position:absolute;right:-1px;top:46px;width:1px;height:26px;border-right:1px dashed rgba(255,255,255,.18)}
  .step:last-child .step__line{display:none}
}

/* 奖励预览 */
.reward-grid{display:grid;gap:20px}
@media (min-width:768px){.reward-grid{grid-template-columns:repeat(3,1fr)}}
.reward-card{
  position:relative;display:flex;flex-direction:column;
  background:var(--panel);border:1px solid var(--line);border-radius:var(--radius-card);
  overflow:hidden;box-shadow:var(--shadow-card);
  transition:transform .18s ease,box-shadow .18s ease,border-color .18s ease;
}
.reward-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-card-hover),0 0 0 1px var(--primary)}
.reward-card__cover{position:relative;overflow:hidden}
.reward-card__cover img{width:100%;height:170px;object-fit:cover;transition:transform .4s ease}
.reward-card:hover .reward-card__cover img{transform:scale(1.04)}
.reward-card__body{padding:18px 20px 22px}
.reward-card__body h3{font-size:18px;font-weight:700}
.reward-card__body p{margin-top:8px;font-size:14px;color:var(--text-dim)}
.reward-card__body .reward-value{
  display:block;margin-top:14px;font-family:var(--font-num);font-size:28px;font-weight:700;color:var(--primary);line-height:1;
}
.reward-card__body .reward-value small{font-family:var(--font-cn);font-size:12px;font-weight:400;color:var(--text-dim);margin-left:6px}
.badge{
  display:inline-flex;align-items:center;height:24px;padding:0 10px;border-radius:var(--radius-badge);
  font-size:12px;font-weight:600;letter-spacing:.02em;
}
.badge--purple{background:rgba(122,77,255,.22);color:#C4AEFF;border:1px solid rgba(122,77,255,.5)}
.badge--pink{background:rgba(255,61,139,.18);color:#FF9CC4;border:1px solid rgba(255,61,139,.5)}
.badge--lime{background:rgba(200,255,61,.16);color:var(--primary);border:1px solid rgba(200,255,61,.5)}
.reward-card__badges{position:absolute;left:14px;top:14px;display:flex;gap:8px}
@media (min-width:768px){
  .reward-card--main{grid-column:1/-1;flex-direction:row;align-items:stretch}
  .reward-card--main .reward-card__cover{flex:0 0 46%;max-width:46%}
  .reward-card--main .reward-card__cover img{height:100%;min-height:250px}
  .reward-card--main .reward-card__body{padding:30px 32px;display:flex;flex-direction:column;justify-content:center}
  .reward-card--main .reward-card__body h3{font-size:22px}
}

/* 任务进度 */
.progress-panel{
  background:var(--panel);border:1px solid var(--line);border-radius:var(--radius-card);
  padding:28px 24px;box-shadow:var(--shadow-card);
}
@media (min-width:768px){.progress-panel{padding:36px 40px}}
.progress-panel__head{display:flex;align-items:flex-end;justify-content:space-between;gap:16px;flex-wrap:wrap}
.progress-panel__head h2{font-size:22px;font-weight:800}
@media (min-width:1024px){.progress-panel__head h2{font-size:28px}}
.progress-value{font-family:var(--font-num);font-size:44px;font-weight:700;color:var(--primary);line-height:1}
.progress-track{
  margin-top:22px;height:9px;border-radius:999px;background:rgba(255,255,255,.08);overflow:hidden;
}
.progress-fill{
  display:block;height:100%;border-radius:999px;
  background:linear-gradient(90deg,var(--primary),var(--warn));
  animation:fillIn .6s ease-out both;
}
@keyframes fillIn{from{width:0!important}}
.milestones{display:grid;gap:16px;margin-top:26px}
@media (min-width:768px){.milestones{grid-template-columns:repeat(4,1fr)}}
.milestones li{display:flex;align-items:flex-start;gap:10px;font-size:13px;color:var(--text-dim)}
.milestones li b{display:block;color:var(--text);font-size:14px;font-weight:600}
.milestones li i{
  margin-top:6px;width:12px;height:12px;border-radius:50%;flex:0 0 12px;
  border:2px solid rgba(255,255,255,.28);
}
.milestones li.is-done i{background:var(--primary);border-color:var(--primary);box-shadow:0 0 10px rgba(200,255,61,.5)}
.milestones li.is-done b{color:var(--primary)}

/* 最新信息 */
.news-list{display:grid;gap:20px}
@media (min-width:768px){.news-list{grid-template-columns:repeat(2,1fr)}}
@media (min-width:1024px){.news-list{grid-template-columns:repeat(3,1fr)}}
.news-card{
  display:flex;flex-direction:column;
  background:var(--panel);border:1px solid var(--line);border-radius:var(--radius-card);
  overflow:hidden;box-shadow:var(--shadow-card);height:100%;
  transition:transform .18s ease,box-shadow .18s ease,border-color .18s ease;
}
.news-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-card-hover),0 0 0 1px var(--primary);color:inherit}
.news-card__cover{display:block;overflow:hidden}
.news-card__cover img{width:100%;height:168px;object-fit:cover;transition:transform .4s ease}
.news-card:hover .news-card__cover img{transform:scale(1.04)}
.news-card__body{display:block;padding:18px 20px 20px;flex:1}
.news-card__title{margin-top:12px;font-size:17px;font-weight:700;line-height:1.5}
.news-card:hover .news-card__title{color:var(--primary)}
.news-card__excerpt{margin-top:8px;font-size:14px;color:var(--text-dim);display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden}
.news-card__meta{display:flex;align-items:center;gap:8px;margin-top:14px;font-size:12px;color:var(--text-dim)}
.news-card__meta i{color:var(--primary);font-size:11px}
.news-empty{
  grid-column:1/-1;
  display:flex;flex-direction:column;align-items:center;justify-content:center;gap:12px;
  padding:54px 24px;text-align:center;
  background:var(--panel);border:1px dashed rgba(255,255,255,.18);border-radius:var(--radius-card);
  color:var(--text-dim);font-size:14px;
}
.news-empty i{font-size:26px;color:var(--secondary)}

/* 玩家反馈 */
.proof-wrap{display:grid;gap:34px}
@media (min-width:1024px){.proof-wrap{grid-template-columns:.95fr 1.05fr;align-items:center;gap:56px}}
.stats-strip{display:grid;grid-template-columns:repeat(2,1fr);gap:16px;margin-top:28px}
@media (min-width:768px){.stats-strip{grid-template-columns:repeat(4,1fr)}}
.stat{
  background:var(--panel);border:1px solid var(--line);border-radius:14px;padding:18px 16px;
}
.stat b{display:block;font-family:var(--font-num);font-size:32px;font-weight:700;color:var(--primary);line-height:1}
.stat span{display:block;margin-top:8px;font-size:12px;color:var(--text-dim)}
.quote-grid{display:grid;gap:18px}
@media (min-width:768px){.quote-grid{grid-template-columns:repeat(2,1fr)}}
.quote{
  background:var(--panel);border:1px solid var(--line);border-left:3px solid var(--secondary);
  border-radius:14px;padding:22px 22px 20px;
  transition:border-color .18s ease,transform .18s ease;
}
.quote:hover{border-left-color:var(--primary);transform:translateY(-2px)}
.quote p{font-size:14.5px;color:var(--text)}
.quote footer{margin-top:14px;font-size:12px;color:var(--text-dim);display:flex;align-items:center;gap:8px}
.quote footer i{color:var(--primary)}
.proof-figure{
  margin-top:26px;border-radius:var(--radius-card);overflow:hidden;border:1px solid var(--line);
}
.proof-figure img{width:100%;height:200px;object-fit:cover}

/* CTA */
.cta{position:relative;overflow:hidden;background:var(--panel);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.cta::before{
  content:"";position:absolute;inset:0;
  background:linear-gradient(115deg,rgba(122,77,255,.32),rgba(13,10,18,0) 62%);
}
.cta::after{
  content:"";position:absolute;top:-60px;right:-80px;width:320px;height:320px;border-radius:50%;
  background:radial-gradient(circle,rgba(200,255,61,.22),transparent 68%);
}
.cta__inner{
  position:relative;z-index:2;
  padding:52px 0;
  display:grid;gap:22px;
}
@media (min-width:1024px){.cta__inner{grid-template-columns:1fr auto;align-items:center;gap:40px;padding:60px 0}}
.cta h2{font-size:24px;font-weight:800;letter-spacing:-.02em}
@media (min-width:1024px){.cta h2{font-size:32px}}
.cta p{margin-top:12px;color:var(--text-dim);font-size:15px}
.cta__actions{display:flex;flex-wrap:wrap;gap:14px}

/* FAQ */
.faq-list{display:grid;gap:12px;max-width:900px}
.faq-item{
  background:var(--panel);border:1px solid var(--line);border-radius:14px;overflow:hidden;
  transition:border-color .18s ease,background .18s ease;
}
.faq-item[open]{background:var(--bg-soft);border-color:rgba(200,255,61,.35)}
.faq-item summary{
  position:relative;list-style:none;cursor:pointer;
  padding:17px 56px 17px 20px;
  font-size:16px;font-weight:600;
  display:block;
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{
  content:"+";position:absolute;right:20px;top:50%;transform:translateY(-50%);
  font-family:var(--font-num);font-size:22px;font-weight:600;color:var(--primary);
  transition:transform .22s ease;
}
.faq-item[open] summary::after{content:"×";transform:translateY(-50%) rotate(180deg)}
.faq-item[open] summary{border-left:3px solid var(--primary);padding-left:17px}
.faq-body{padding:0 22px 20px;font-size:14.5px;color:var(--text-dim)}

/* 页脚 */
.site-footer{background:var(--bg-soft);border-top:1px solid var(--line);padding:56px 0 0}
.footer-grid{display:grid;gap:34px}
@media (min-width:768px){.footer-grid{grid-template-columns:repeat(2,1fr)}}
@media (min-width:1024px){.footer-grid{grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:40px}}
.footer-col h3{
  font-size:15px;font-weight:700;position:relative;padding-bottom:12px;margin-bottom:16px;
}
.footer-col h3::after{content:"";position:absolute;left:0;bottom:0;width:26px;height:3px;border-radius:2px;background:var(--primary)}
.footer-col p{font-size:13.5px;color:var(--text-dim)}
.footer-col ul{display:grid;gap:10px}
.footer-col ul a{font-size:13.5px;color:var(--text-dim)}
.footer-col ul a:hover{color:var(--primary)}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px}
.footer-bottom{
  margin-top:46px;border-top:1px solid var(--line);
  padding:20px 0 26px;
  display:flex;flex-wrap:wrap;gap:10px 22px;align-items:center;justify-content:space-between;
  font-size:13px;color:var(--text-dim);
}
.footer-bottom a{color:var(--text-dim)}
.footer-bottom a:hover{color:var(--primary)}

/* 移动底部 Tab */
.mobile-tabbar{
  position:fixed;left:0;right:0;bottom:0;z-index:90;
  display:flex;align-items:stretch;
  background:var(--panel);
  border-top:1px solid var(--line);
  padding-bottom:env(safe-area-inset-bottom);
  height:calc(60px + env(safe-area-inset-bottom));
}
.mobile-tabbar a{
  position:relative;flex:1;
  display:flex;flex-direction:column;align-items:center;justify-content:center;gap:4px;
  font-size:10px;color:var(--text-dim);
}
.mobile-tabbar a i{font-size:18px}
.mobile-tabbar a.is-active{color:var(--primary)}
.mobile-tabbar a.is-active::before{
  content:"";position:absolute;top:0;left:50%;transform:translateX(-50%);
  width:26px;height:3px;border-radius:0 0 3px 3px;background:var(--primary);
}
@media (min-width:768px){.mobile-tabbar{display:none}}
@media (max-width:767px){body{padding-bottom:76px}}

@media (prefers-reduced-motion:reduce){
  *{animation-duration:.001ms!important;animation-iteration-count:1!important;transition-duration:.001ms!important}
  html{scroll-behavior:auto}
}

/* roulang page: category1 */
:root{
  --bg:#0D0A12;
  --bg-soft:#141020;
  --panel:#1A1428;
  --line:rgba(255,255,255,.08);
  --text:#F2F0F7;
  --text-dim:#A79FB8;
  --primary:#C8FF3D;
  --primary-ink:#0D0A12;
  --secondary:#7A4DFF;
  --accent:#FF3D8B;
  --warn:#FFB020;
  --radius:18px;
  --radius-sm:12px;
  --shadow:0 8px 24px rgba(0,0,0,.45);
  --shadow-hover:0 14px 34px rgba(0,0,0,.55);
  --maxw:1200px;
  --dock-h:60px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,sans-serif;
  font-size:16px;
  line-height:1.8;
  letter-spacing:0;
  overflow-x:hidden;
}
h1,h2,h3,h4,p,ul,ol,figure{margin:0;padding:0}
ul,ol{list-style:none}
a{color:inherit;text-decoration:none}
img{max-width:100%;display:block}
button{font-family:inherit;cursor:pointer}
h1,h2,h3,h4{line-height:1.25;font-weight:800;letter-spacing:-.02em;color:var(--text)}
h2{font-size:24px;font-weight:800}
h3{font-size:18px;font-weight:700}
p{color:var(--text-dim)}
a:focus-visible,button:focus-visible,input:focus-visible{outline:2px solid var(--primary);outline-offset:3px}
::selection{background:var(--primary);color:var(--primary-ink)}

.container{width:100%;max-width:var(--maxw);margin:0 auto;padding:0 20px}
@media (min-width:1024px){.container{padding:0 28px}}

.num{font-family:"Oswald","Barlow Condensed",system-ui,sans-serif;font-weight:600;letter-spacing:.01em}

/* ============ 顶部导航 ============ */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(13,10,18,.86);
  -webkit-backdrop-filter:blur(12px);
  backdrop-filter:blur(12px);
  border-bottom:1px solid var(--line);
}
.header-inner{
  display:flex;align-items:center;gap:18px;
  min-height:64px;
}
.logo{
  display:inline-flex;align-items:center;gap:9px;
  font-size:18px;font-weight:900;letter-spacing:-.01em;
  color:var(--text);white-space:nowrap;
}
.logo .dot{
  width:10px;height:10px;border-radius:3px;
  background:var(--primary);
  box-shadow:0 0 12px rgba(200,255,61,.7);
  transform:rotate(45deg);
  flex:0 0 auto;
}
.logo .logo-key{color:var(--primary)}
.nav-links{display:none;align-items:center;gap:4px;margin-left:auto}
.nav-links a{
  position:relative;
  display:inline-block;
  padding:8px 12px;
  font-size:15px;font-weight:500;color:var(--text-dim);
  border-radius:999px;
  transition:color .18s ease,background .18s ease;
  white-space:nowrap;
}
.nav-links a:hover{color:var(--text);background:rgba(255,255,255,.05)}
.nav-links a.is-active{color:var(--primary)}
.nav-links a.is-active::after{
  content:"";position:absolute;left:12px;right:12px;bottom:2px;height:2px;
  background:var(--primary);border-radius:2px;
}
.header-cta{
  display:none;
  margin-left:6px;
  padding:9px 18px;
  border-radius:999px;
  background:var(--primary);color:var(--primary-ink) !important;
  font-size:15px;font-weight:700;letter-spacing:.02em;
  transition:box-shadow .18s ease,transform .18s ease;
  white-space:nowrap;
}
.header-cta:hover{box-shadow:0 0 18px rgba(200,255,61,.35);transform:translateY(-1px);background:var(--primary);color:var(--primary-ink)}
.nav-toggle{
  margin-left:auto;
  width:42px;height:42px;flex:0 0 auto;
  display:inline-flex;align-items:center;justify-content:center;
  background:var(--panel);
  border:1px solid var(--line);
  border-radius:12px;
  color:var(--text);font-size:17px;
  transition:border-color .18s ease,color .18s ease;
}
.nav-toggle:hover{border-color:rgba(200,255,61,.5);color:var(--primary)}
@media (max-width:1023px){
  .nav-links{
    display:none;
    position:absolute;left:0;right:0;top:100%;
    flex-direction:column;align-items:stretch;gap:2px;
    padding:12px 20px 18px;
    background:var(--bg-soft);
    border-bottom:1px solid var(--line);
    box-shadow:0 18px 40px rgba(0,0,0,.55);
  }
  .nav-links.is-open{display:flex}
  .nav-links a{padding:12px 14px;border-radius:12px;font-size:16px}
  .nav-links a.is-active{background:rgba(200,255,61,.08)}
  .nav-links a.is-active::after{display:none}
}
@media (min-width:1024px){
  .nav-links{display:flex}
  .header-cta{display:inline-block}
  .nav-toggle{display:none}
}

/* ============ 移动底部 Tab ============ */
.dock{
  position:fixed;left:0;right:0;bottom:0;z-index:70;
  display:grid;grid-template-columns:repeat(5,1fr);
  height:calc(var(--dock-h) + env(safe-area-inset-bottom));
  padding-bottom:env(safe-area-inset-bottom);
  background:var(--panel);
  border-top:1px solid var(--line);
}
.dock-item{
  position:relative;
  display:flex;flex-direction:column;align-items:center;justify-content:center;gap:3px;
  color:var(--text-dim);font-size:10px;line-height:1.2;
  transition:color .18s ease;
}
.dock-item i{font-size:19px}
.dock-item.is-active{color:var(--primary)}
.dock-item.is-active::before{
  content:"";position:absolute;top:0;left:50%;transform:translateX(-50%);
  width:26px;height:3px;border-radius:0 0 3px 3px;background:var(--primary);
}
@media (min-width:768px){.dock{display:none}}
@media (max-width:767px){body{padding-bottom:calc(var(--dock-h) + env(safe-area-inset-bottom) + 16px)}}

/* ============ 面包屑 ============ */
.crumb-wrap{
  border-bottom:1px solid var(--line);
  background:var(--bg-soft);
}
.crumb{
  display:flex;align-items:center;gap:9px;
  padding:12px 0;
  font-size:13px;color:var(--text-dim);
  white-space:nowrap;overflow-x:auto;scrollbar-width:none;
}
.crumb::-webkit-scrollbar{display:none}
.crumb a{color:var(--text-dim);transition:color .18s ease}
.crumb a:hover{color:var(--text)}
.crumb .sep{color:rgba(255,255,255,.22)}
.crumb .now{color:var(--primary)}

/* ============ Hero ============ */
.hero{
  position:relative;
  overflow:hidden;
  background:var(--bg);
  padding:52px 0 68px;
  clip-path:polygon(0 0,100% 0,100% calc(100% - 36px),0 100%);
}
.hero-bg{
  position:absolute;inset:0;
  width:100%;height:100%;object-fit:cover;
  opacity:.3;
  filter:saturate(.9) contrast(1.05);
}
.hero::after{
  content:"";position:absolute;inset:0;
  background:
    radial-gradient(760px 380px at 12% 6%,rgba(122,77,255,.34),transparent 66%),
    linear-gradient(180deg,rgba(13,10,18,.62) 0%,rgba(13,10,18,.92) 72%,var(--bg) 100%);
}
.hero .container{position:relative;z-index:2}
.hero-tag{
  display:inline-flex;align-items:center;gap:8px;
  padding:6px 14px;
  border:1px solid rgba(200,255,61,.35);
  border-radius:999px;
  background:rgba(200,255,61,.08);
  color:var(--primary);
  font-size:13px;font-weight:600;letter-spacing:.04em;
}
.hero h1{
  margin-top:20px;
  font-size:32px;font-weight:900;letter-spacing:-.02em;
  max-width:15em;
}
.hero h1 em{font-style:normal;color:var(--primary)}
.hero-sub{
  margin-top:16px;
  font-size:17px;color:var(--text);font-weight:600;
  max-width:30em;
}
.hero-desc{
  margin-top:12px;
  font-size:15px;color:var(--text-dim);
  max-width:38em;
}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:28px}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:9px;
  height:48px;padding:0 26px;
  border-radius:999px;
  font-size:15px;font-weight:700;letter-spacing:.02em;
  border:1px solid transparent;
  transition:transform .18s ease,box-shadow .18s ease,background .18s ease,border-color .18s ease,color .18s ease;
}
.btn-primary{background:var(--primary);color:var(--primary-ink)}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 0 18px rgba(200,255,61,.35)}
.btn-ghost{background:transparent;color:var(--text);border-color:var(--line)}
.btn-ghost:hover{border-color:var(--primary);color:var(--primary);transform:translateY(-2px)}
.hero-stats{
  display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px;
  margin-top:34px;max-width:520px;
}
.hero-stat{
  padding:14px 16px;
  background:rgba(26,20,40,.72);
  border:1px solid var(--line);
  border-radius:14px;
}
.hero-stat b{display:block;font-size:24px;color:var(--primary)}
.hero-stat span{font-size:12px;color:var(--text-dim)}
@media (min-width:768px){
  .hero{padding:76px 0 96px;clip-path:polygon(0 0,100% 0,100% calc(100% - 60px),0 100%)}
  .hero h1{font-size:44px}
  .hero-stats{grid-template-columns:repeat(4,minmax(0,1fr));max-width:760px}
}
@media (min-width:1024px){
  .hero{padding:96px 0 116px;min-height:560px}
  .hero h1{font-size:56px}
}

/* ============ 胶囊锚点条 ============ */
.pill-bar{
  position:relative;
  margin-top:-26px;
  z-index:5;
}
.pill-inner{
  display:flex;gap:10px;
  padding:14px;
  overflow-x:auto;scrollbar-width:none;
  background:var(--panel);
  border:1px solid var(--line);
  border-radius:16px;
  box-shadow:var(--shadow);
}
.pill-inner::-webkit-scrollbar{display:none}
.pill{
  flex:0 0 auto;
  padding:9px 18px;
  border-radius:999px;
  border:1px solid var(--line);
  background:rgba(255,255,255,.02);
  color:var(--text-dim);
  font-size:14px;font-weight:500;
  transition:color .18s ease,border-color .18s ease,background .18s ease;
  white-space:nowrap;
}
.pill:hover{color:var(--text);border-color:rgba(200,255,61,.4)}
.pill.is-current{
  background:var(--primary);border-color:var(--primary);
  color:var(--primary-ink);font-weight:700;
}

/* ============ 通用板块 ============ */
.section{padding:56px 0}
.section-alt{background:var(--bg-soft);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.section-head{max-width:720px;margin-bottom:32px}
.section-head .kicker{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;font-weight:600;letter-spacing:.06em;color:var(--secondary);
  text-transform:uppercase;
}
.sec-title{
  position:relative;
  display:flex;align-items:center;gap:12px;
  margin-top:10px;
}
.sec-title::before{
  content:"";flex:0 0 auto;
  width:4px;height:24px;border-radius:2px;background:var(--secondary);
}
.sec-title h2{font-size:24px}
.section-head p{margin-top:14px;font-size:15px}
@media (min-width:768px){.sec-title h2{font-size:34px}.section{padding:76px 0}}

/* ============ 图文交替 ============ */
.split{
  display:grid;gap:28px;align-items:center;
}
.split + .split{margin-top:56px}
.split-media{
  position:relative;
  border-radius:var(--radius);
  overflow:hidden;
  border:1px solid var(--line);
  box-shadow:var(--shadow);
  background:var(--panel);
}
.split-media img{width:100%;height:100%;aspect-ratio:16/10;object-fit:cover}
.split-media::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(13,10,18,0) 42%,rgba(13,10,18,.66) 100%);
}
.split-index{
  position:absolute;left:18px;top:14px;z-index:2;
  font-size:34px;line-height:1;color:var(--primary);
  opacity:.92;
}
.split-badge{
  position:absolute;left:18px;bottom:16px;z-index:2;
  display:inline-flex;align-items:center;gap:7px;
  padding:6px 13px;border-radius:6px;
  background:var(--secondary);
  color:#fff;font-size:12px;font-weight:600;letter-spacing:.03em;
}
.split-badge.alt{background:var(--accent)}
.split-body h3{font-size:22px;margin-bottom:14px}
.split-body p{font-size:15px;margin-bottom:14px}
.split-body p:last-of-type{margin-bottom:0}
.tick-list{margin-top:18px;display:grid;gap:10px}
.tick-list li{
  position:relative;padding-left:20px;
  font-size:15px;color:var(--text);
}
.tick-list li::before{
  content:"";position:absolute;left:0;top:.62em;
  width:8px;height:8px;border-radius:2px;background:var(--primary);
  transform:rotate(45deg);
}
.tick-list li span{color:var(--text-dim);font-size:14px}
@media (min-width:768px){
  .split{grid-template-columns:1fr 1fr;gap:44px}
  .split.reverse .split-media{order:2}
  .split + .split{margin-top:84px}
}

/* ============ 参数卡 ============ */
.param-grid{display:grid;gap:18px;grid-template-columns:1fr}
.param-card{
  position:relative;
  padding:24px 22px;
  background:var(--panel);
  border:1px solid var(--line);
  border-radius:var(--radius);
  box-shadow:var(--shadow);
  transition:transform .18s ease,box-shadow .18s ease,border-color .18s ease;
  overflow:hidden;
}
.param-card::before{
  content:"";position:absolute;left:0;top:0;bottom:0;width:3px;
  background:linear-gradient(180deg,var(--primary),var(--secondary));
  opacity:.9;
}
.param-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-hover),0 0 0 1px var(--primary)}
.param-card b{
  display:block;font-size:38px;line-height:1.05;color:var(--primary);
}
.param-card b small{font-size:16px;margin-left:4px;color:var(--text-dim);font-weight:600}
.param-card h3{margin-top:12px;font-size:17px}
.param-card p{margin-top:8px;font-size:14px;color:var(--text-dim)}
@media (min-width:768px){.param-grid{grid-template-columns:repeat(2,1fr)}}
@media (min-width:1024px){.param-grid{grid-template-columns:repeat(4,1fr)}}

/* ============ 双栏要点 ============ */
.point-grid{display:grid;gap:22px;grid-template-columns:1fr}
.point-box{
  padding:26px 24px;
  background:var(--panel);
  border:1px solid var(--line);
  border-radius:var(--radius);
  box-shadow:var(--shadow);
}
.point-box .tag{
  display:inline-block;
  padding:4px 12px;border-radius:6px;
  font-size:12px;font-weight:600;letter-spacing:.04em;
}
.tag-purple{background:rgba(122,77,255,.2);color:#C4B0FF;border:1px solid rgba(122,77,255,.45)}
.tag-magenta{background:rgba(255,61,139,.16);color:#FFA2C7;border:1px solid rgba(255,61,139,.4)}
.point-box h3{margin:16px 0 14px;font-size:19px}
.point-box ul{display:grid;gap:12px}
.point-box ul li{
  padding-bottom:12px;
  border-bottom:1px dashed var(--line);
  font-size:15px;color:var(--text);
}
.point-box ul li:last-child{border-bottom:0;padding-bottom:0}
.point-box ul li em{
  display:block;font-style:normal;font-size:13.5px;color:var(--text-dim);margin-top:4px;
}
@media (min-width:768px){.point-grid{grid-template-columns:1fr 1fr;gap:26px}}

/* ============ FAQ ============ */
.faq{display:grid;gap:12px;max-width:900px}
.faq-item{
  background:var(--panel);
  border:1px solid var(--line);
  border-radius:14px;
  overflow:hidden;
  transition:background .18s ease,border-color .18s ease;
}
.faq-item.is-open{background:var(--bg-soft);border-color:rgba(200,255,61,.32)}
.faq-q{
  width:100%;
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  min-height:56px;
  padding:14px 20px;
  background:transparent;border:0;
  text-align:left;
  color:var(--text);font-size:16px;font-weight:600;line-height:1.5;
  transition:color .18s ease;
}
.faq-q:hover{color:var(--primary)}
.faq-item.is-open .faq-q{color:var(--primary)}
.faq-ico{
  flex:0 0 auto;
  width:26px;height:26px;border-radius:50%;
  display:inline-flex;align-items:center;justify-content:center;
  border:1px solid var(--line);
  color:var(--text-dim);font-size:13px;
  transition:transform .22s ease,color .18s ease,border-color .18s ease;
}
.faq-item.is-open .faq-ico{transform:rotate(180deg);color:var(--primary);border-color:rgba(200,255,61,.5)}
.faq-a{
  max-height:0;overflow:hidden;
  transition:max-height .28s ease;
  border-left:3px solid transparent;
}
.faq-item.is-open .faq-a{border-left-color:var(--primary)}
.faq-a-inner{padding:0 22px 20px;font-size:15px;color:var(--text-dim)}

/* ============ CTA ============ */
.cta-band{
  position:relative;
  margin:0 auto;
  padding:48px 0;
  background:linear-gradient(120deg,rgba(122,77,255,.28),rgba(255,61,139,.18));
  border-top:1px solid var(--line);
  border-bottom:1px solid var(--line);
  clip-path:polygon(0 26px,100% 0,100% calc(100% - 26px),0 100%);
  overflow:hidden;
}
.cta-band::before{
  content:"";position:absolute;inset:0;
  background-image:radial-gradient(rgba(255,255,255,.12) 1px,transparent 1px);
  background-size:16px 16px;
  opacity:.5;
}
.cta-inner{
  position:relative;z-index:2;
  display:grid;gap:24px;align-items:center;
}
.cta-inner h2{font-size:26px}
.cta-inner p{margin-top:12px;font-size:15px;color:#D9D4E6;max-width:44em}
.cta-inner .btn{height:52px;padding:0 32px;font-size:16px;width:100%}
@media (min-width:768px){
  .cta-band{padding:64px 0}
  .cta-inner{grid-template-columns:1fr auto;gap:40px}
  .cta-inner h2{font-size:32px}
  .cta-inner .btn{width:auto;min-width:220px}
}

/* ============ 页脚 ============ */
.site-footer{
  background:var(--bg-soft);
  border-top:1px solid var(--line);
  padding:52px 0 0;
}
.footer-grid{display:grid;gap:32px;grid-template-columns:1fr}
.footer-col h4{
  position:relative;
  font-size:15px;font-weight:700;padding-bottom:12px;margin-bottom:16px;
}
.footer-col h4::after{
  content:"";position:absolute;left:0;bottom:0;width:26px;height:3px;border-radius:2px;background:var(--primary);
}
.footer-brand .logo{margin-bottom:14px}
.footer-brand p{font-size:14px;color:var(--text-dim);max-width:34em}
.footer-links{display:grid;gap:11px}
.footer-links a{font-size:14px;color:var(--text-dim);transition:color .18s ease,transform .18s ease;display:inline-block}
.footer-links a:hover{color:var(--primary);transform:translateX(3px)}
.footer-note{font-size:13.5px;color:var(--text-dim);display:grid;gap:10px}
.footer-note li{position:relative;padding-left:16px}
.footer-note li::before{
  content:"";position:absolute;left:0;top:.68em;width:6px;height:6px;border-radius:50%;background:var(--secondary);
}
.footer-bottom{
  margin-top:44px;
  padding:18px 0 22px;
  border-top:1px solid var(--line);
  display:flex;flex-wrap:wrap;align-items:center;gap:12px;justify-content:space-between;
  font-size:13px;color:var(--text-dim);
}
.footer-bottom .fb-left{display:flex;flex-wrap:wrap;align-items:center;gap:10px}
.footer-bottom i{color:var(--primary);margin-right:6px}
.footer-bottom .sep{color:rgba(255,255,255,.2)}
@media (min-width:768px){.footer-grid{grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:40px}}
@media (max-width:767px){.site-footer{padding-top:40px;padding-bottom:calc(var(--dock-h) + 10px)}}

@media (prefers-reduced-motion:reduce){
  *{animation:none !important;transition:none !important}
}

/* roulang page: article */
:root{
  --bg:#0D0A12;
  --bg-soft:#141020;
  --panel:#1A1428;
  --line:rgba(255,255,255,.08);
  --text:#F2F0F7;
  --text-dim:#A79FB8;
  --primary:#C8FF3D;
  --primary-ink:#0D0A12;
  --secondary:#7A4DFF;
  --accent:#FF3D8B;
  --warn:#FFB020;
  --radius-lg:18px;
  --radius-md:12px;
  --radius-sm:6px;
  --shadow:0 8px 24px rgba(0,0,0,.45);
  --shadow-hover:0 14px 34px rgba(0,0,0,.55);
  --pad-x:20px;
  --max:1200px;
}
@media (min-width:1024px){
  :root{--pad-x:28px}
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  background-color:var(--bg);
  background-image:radial-gradient(rgba(255,255,255,.05) 1px,transparent 1px);
  background-size:22px 22px;
  color:var(--text);
  font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,sans-serif;
  font-size:16px;
  line-height:1.8;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;height:auto;display:block}
a{color:inherit;text-decoration:none}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4{margin:0;font-weight:800;letter-spacing:-.02em;line-height:1.28}
p{margin:0}
button{font-family:inherit}
a:focus-visible,button:focus-visible{outline:2px solid var(--primary);outline-offset:3px;border-radius:6px}
.container{width:100%;max-width:var(--max);margin:0 auto;padding:0 var(--pad-x)}

/* ============ 顶部导航 ============ */
.site-header{
  position:sticky;top:0;z-index:50;
  background:rgba(13,10,18,.84);
  -webkit-backdrop-filter:blur(12px);
  backdrop-filter:blur(12px);
  border-bottom:1px solid var(--line);
}
.header-inner{display:flex;align-items:center;gap:24px;min-height:68px}
.brand{display:inline-flex;align-items:center;gap:10px;flex-shrink:0}
.brand-mark{
  display:grid;place-items:center;width:34px;height:34px;border-radius:10px;
  background:var(--primary);color:var(--primary-ink);
  font-size:14px;font-weight:900;letter-spacing:.02em;
}
.brand-text{
  font-size:18px;font-weight:900;letter-spacing:-.01em;color:var(--text);
  border:1px solid rgba(200,255,61,.42);border-radius:8px;padding:3px 10px;line-height:1.4;
}
.nav-links{display:none;align-items:center;gap:22px;margin-left:auto}
.nav-links a{
  position:relative;font-size:15px;font-weight:500;color:var(--text-dim);
  padding:8px 0;transition:color .18s ease;
}
.nav-links a:hover{color:var(--text)}
.nav-links a.is-active{color:var(--text)}
.nav-links a.is-active::after{
  content:"";position:absolute;left:0;right:0;bottom:2px;height:2px;border-radius:2px;background:var(--primary);
}
.header-actions{display:flex;align-items:center;gap:12px;margin-left:auto}
.nav-toggle{
  display:inline-grid;place-items:center;width:40px;height:40px;cursor:pointer;
  border-radius:12px;border:1px solid var(--line);background:var(--panel);color:var(--text);font-size:16px;
  transition:border-color .18s ease,color .18s ease;
}
.nav-toggle:hover{border-color:var(--primary);color:var(--primary)}
@media (min-width:1024px){
  .nav-links{display:flex}
  .header-actions{margin-left:0}
  .nav-toggle{display:none}
}
@media (max-width:1023px){
  .site-header.nav-open .nav-links{
    display:flex;flex-direction:column;align-items:flex-start;gap:0;
    position:absolute;left:0;right:0;top:100%;margin:0;
    background:var(--panel);border-bottom:1px solid var(--line);
    padding:8px var(--pad-x) 16px;
    box-shadow:var(--shadow);
  }
  .site-header.nav-open .nav-links a{width:100%;padding:12px 0;border-bottom:1px solid var(--line);font-size:15px}
  .site-header.nav-open .nav-links a:last-child{border-bottom:0}
  .site-header.nav-open .nav-links a.is-active::after{display:none}
}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:12px 22px;border-radius:999px;border:1px solid transparent;
  font-size:15px;font-weight:600;letter-spacing:.02em;cursor:pointer;
  transition:transform .18s ease,box-shadow .18s ease,background .18s ease,border-color .18s ease,color .18s ease;
}
.btn-primary{background:var(--primary);color:var(--primary-ink)}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 0 18px rgba(200,255,61,.35)}
.btn-ghost{background:transparent;border-color:var(--line);color:var(--text)}
.btn-ghost:hover{border-color:var(--primary);color:var(--primary);transform:translateY(-2px)}
.btn-sm{padding:9px 18px;font-size:14px}
.btn-lg{padding:15px 32px;font-size:16px}
.btn:active{transform:translateY(0)}

/* ============ 内页 Banner / 面包屑 ============ */
.page-banner{
  padding:22px 0 26px;
  border-bottom:1px solid var(--line);
  background-image:
    linear-gradient(180deg,rgba(13,10,18,.86),rgba(122,77,255,.24)),
    url('/assets/images/backpic/back-2.png');
  background-size:cover;
  background-position:center;
}
.breadcrumb{
  display:flex;align-items:center;gap:8px;font-size:13px;color:var(--text-dim);
  overflow-x:auto;white-space:nowrap;scrollbar-width:none;
}
.breadcrumb::-webkit-scrollbar{display:none}
.breadcrumb a{color:var(--text-dim);transition:color .18s ease}
.breadcrumb a:hover{color:var(--primary)}
.breadcrumb .sep{color:rgba(255,255,255,.24)}
.breadcrumb .current{color:var(--primary);max-width:60vw;overflow:hidden;text-overflow:ellipsis}

/* ============ 文章头部 ============ */
.article-shell{padding:40px 0 20px}
.article-head{max-width:820px;margin:0 auto}
.article-head h1{font-size:32px;margin:14px 0 18px;line-height:1.3}
@media (min-width:1024px){
  .article-head h1{font-size:44px}
}
.badge{
  display:inline-flex;align-items:center;gap:6px;
  padding:4px 10px;border-radius:var(--radius-sm);
  font-size:12px;font-weight:600;letter-spacing:.02em;line-height:1.6;
}
.badge-cat{background:var(--secondary);color:#fff}
.badge-accent{background:var(--accent);color:#fff}
.badge-line{background:transparent;border:1px solid var(--line);color:var(--text-dim)}
.meta-bar{
  display:flex;flex-wrap:wrap;gap:10px 20px;padding-top:16px;
  border-top:1px solid var(--line);font-size:13px;color:var(--text-dim);
}
.meta-bar span{display:inline-flex;align-items:center}
.meta-bar i{color:var(--primary);margin-right:7px}

/* ============ 正文排版 ============ */
.article-body{
  max-width:820px;margin:0 auto;padding:26px 0 10px;
  font-size:17px;line-height:1.9;color:#E6E2F0;
}
.article-body > *:first-child{margin-top:0}
.article-body p{margin:0 0 1.2em}
.article-body h2{
  position:relative;padding-left:16px;margin:2.1em 0 .8em;
  font-size:26px;line-height:1.35;color:var(--text);
}
.article-body h2::before{
  content:"";position:absolute;left:0;top:.3em;width:4px;height:.9em;border-radius:2px;background:var(--secondary);
}
.article-body h3{font-size:20px;margin:1.8em 0 .6em;color:var(--text)}
.article-body h4{font-size:17px;margin:1.5em 0 .5em;color:var(--text)}
.article-body a{color:var(--primary);border-bottom:1px solid rgba(200,255,61,.35)}
.article-body a:hover{border-bottom-color:var(--primary)}
.article-body strong{color:var(--text);font-weight:700}
.article-body blockquote{
  margin:1.6em 0;padding:16px 20px;border-left:3px solid var(--primary);
  background:var(--bg-soft);border-radius:0 var(--radius-md) var(--radius-md) 0;
  color:var(--text-dim);font-style:italic;
}
.article-body ul,.article-body ol{margin:0 0 1.3em;padding-left:0}
.article-body ul li{position:relative;padding-left:20px;margin-bottom:.5em;list-style:none}
.article-body ul li::before{
  content:"";position:absolute;left:0;top:.68em;width:8px;height:8px;border-radius:2px;background:var(--primary);
}
.article-body ol{counter-reset:artol;padding-left:0}
.article-body ol li{position:relative;padding-left:30px;margin-bottom:.5em;counter-increment:artol}
.article-body ol li::before{
  content:counter(artol,decimal-leading-zero);position:absolute;left:0;top:.1em;
  font-family:"Oswald","Barlow Condensed",sans-serif;font-size:13px;color:var(--primary);font-weight:700;
}
.article-body img{border-radius:var(--radius-md);margin:1.4em 0;width:100%;object-fit:cover}
.article-body figure{margin:1.6em 0}
.article-body figcaption{font-size:13px;color:var(--text-dim);text-align:center;margin-top:10px}
.article-body table{
  display:block;width:100%;overflow-x:auto;border-collapse:collapse;margin:1.6em 0;font-size:15px;
}
.article-body table th,.article-body table td{
  padding:10px 14px;border:1px solid var(--line);text-align:left;white-space:nowrap;
}
.article-body table th{background:var(--bg-soft);color:var(--text)}
.article-body code{
  background:var(--bg-soft);border:1px solid var(--line);border-radius:6px;padding:1px 6px;font-size:14px;
}
.article-body hr{border:0;border-top:1px solid var(--line);margin:2.2em 0}
.article-empty{
  max-width:820px;margin:0 auto;padding:48px 28px;text-align:center;
  background:var(--bg-soft);border:1px solid var(--line);border-radius:var(--radius-lg);
}
.article-empty i{font-size:32px;color:var(--secondary)}
.article-empty h2{font-size:22px;margin:16px 0 10px}
.article-empty p{color:var(--text-dim);font-size:15px;margin-bottom:22px}

/* ============ 文末标签 ============ */
.article-foot{
  max-width:820px;margin:34px auto 0;padding-top:22px;border-top:1px solid var(--line);
  display:flex;flex-wrap:wrap;gap:16px;align-items:center;justify-content:space-between;
}
.tag-list{display:flex;flex-wrap:wrap;gap:8px}
.tag{
  display:inline-flex;align-items:center;font-size:13px;color:var(--text-dim);
  background:var(--panel);border:1px solid var(--line);border-radius:999px;padding:5px 13px;
  transition:border-color .18s ease,color .18s ease;
}
.tag:hover{border-color:var(--primary);color:var(--primary)}
.link-back{font-size:14px;font-weight:600;color:var(--primary);display:inline-flex;align-items:center;gap:8px}
.link-back:hover{gap:12px}
.link-back{transition:gap .18s ease}

/* ============ 板块 ============ */
.section{padding:64px 0}
.section-soft{
  background:var(--bg-soft);border-top:1px solid var(--line);border-bottom:1px solid var(--line);
}
.section-head{display:flex;flex-wrap:wrap;align-items:flex-end;justify-content:space-between;gap:16px;margin-bottom:30px}
.section-title{position:relative;padding-left:16px;font-size:24px}
.section-title::before{
  content:"";position:absolute;left:0;top:4px;width:4px;height:24px;border-radius:2px;background:var(--secondary);
}
.section-title small{display:block;font-size:13px;font-weight:500;color:var(--text-dim);letter-spacing:.08em;margin-top:8px}
.section-more{font-size:14px;font-weight:600;color:var(--text-dim)}
.section-more:hover{color:var(--primary)}

/* ============ 相关推荐卡片 ============ */
.rec-grid{margin:0 -10px}
.rec-grid > .cell{padding:0 10px;margin-bottom:20px}
.rec-card{
  display:block;height:100%;background:var(--panel);border:1px solid var(--line);
  border-radius:var(--radius-lg);overflow:hidden;box-shadow:var(--shadow);
  transition:transform .18s ease,box-shadow .18s ease,border-color .18s ease;
}
.rec-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-hover);border-color:var(--primary)}
.rec-media{position:relative;height:180px;overflow:hidden;background:var(--bg-soft)}
.rec-media img{width:100%;height:100%;object-fit:cover;transition:transform .3s ease}
.rec-card:hover .rec-media img{transform:scale(1.04)}
.rec-media .badge{position:absolute;left:12px;top:12px}
.rec-body{padding:18px}
.rec-body h3{font-size:18px;margin-bottom:10px;line-height:1.45}
.rec-body p{font-size:14px;line-height:1.75;color:var(--text-dim);margin-bottom:14px}
.rec-meta{display:flex;flex-wrap:wrap;gap:12px;font-size:12px;color:var(--text-dim)}
.rec-meta i{color:var(--primary);margin-right:6px}

/* ============ CTA ============ */
.cta-band{
  position:relative;padding:64px 0;
  background-image:
    linear-gradient(100deg,rgba(13,10,18,.88),rgba(122,77,255,.42)),
    url('/assets/images/backpic/back-3.webp');
  background-size:cover;background-position:center;
  clip-path:polygon(0 3%,100% 0,100% 97%,0 100%);
}
@media (min-width:1024px){
  .cta-band{clip-path:polygon(0 7%,100% 0,100% 93%,0 100%)}
}
.cta-inner{display:flex;flex-direction:column;gap:22px;align-items:flex-start}
@media (min-width:1024px){
  .cta-inner{flex-direction:row;align-items:center;justify-content:space-between;gap:40px}
}
.cta-copy h2{font-size:24px;line-height:1.4}
.cta-copy p{margin-top:12px;max-width:640px;font-size:15px;color:rgba(242,240,247,.78)}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px;flex-shrink:0}

/* ============ 页脚 ============ */
.site-footer{margin-top:0;padding:56px 0 0;background:var(--bg-soft);border-top:1px solid var(--line)}
.footer-grid{display:grid;grid-template-columns:1fr;gap:34px}
@media (min-width:768px){
  .footer-grid{grid-template-columns:repeat(2,1fr)}
}
@media (min-width:1024px){
  .footer-grid{grid-template-columns:1.5fr 1fr 1fr 1fr;gap:40px}
}
.f-col p{font-size:14px;line-height:1.85;color:var(--text-dim);margin-top:16px;max-width:380px}
.f-title{position:relative;font-size:15px;font-weight:700;padding-bottom:12px}
.f-title::after{content:"";position:absolute;left:0;bottom:0;width:26px;height:3px;border-radius:2px;background:var(--primary)}
.f-links{margin-top:18px;display:flex;flex-direction:column;gap:11px}
.f-links a{font-size:14px;color:var(--text-dim);transition:color .18s ease,padding-left .18s ease}
.f-links a:hover{color:var(--primary);padding-left:4px}
.f-links li span{font-size:14px;color:var(--text-dim)}
.footer-social{
  margin-top:18px;display:inline-flex;align-items:center;gap:8px;
  padding:8px 14px;border-radius:999px;border:1px solid var(--line);background:var(--panel);
  font-size:13px;color:var(--text-dim);
}
.footer-social i{color:var(--primary)}
.footer-bottom{
  margin-top:46px;padding:20px 0;border-top:1px solid var(--line);
  display:flex;flex-wrap:wrap;gap:10px 24px;justify-content:space-between;
  font-size:13px;color:var(--text-dim);
}

/* ============ 移动端底部 Tab ============ */
.tabbar{
  position:fixed;left:0;right:0;bottom:0;z-index:60;
  display:grid;grid-template-columns:repeat(5,1fr);height:60px;
  background:var(--panel);border-top:1px solid var(--line);
  padding-bottom:env(safe-area-inset-bottom);
  box-shadow:0 -8px 24px rgba(0,0,0,.45);
}
.tab-item{
  position:relative;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:4px;
  font-size:10px;color:var(--text-dim);transition:color .18s ease;
}
.tab-item i{font-size:18px}
.tab-item:hover{color:var(--text)}
.tab-item.is-active{color:var(--primary)}
.tab-item.is-active::before{
  content:"";position:absolute;top:0;left:50%;transform:translateX(-50%);
  width:26px;height:3px;border-radius:0 0 3px 3px;background:var(--primary);
}
@media (min-width:768px){
  .tabbar{display:none}
}
@media (max-width:767px){
  body{padding-bottom:76px}
  .section{padding:48px 0}
  .article-shell{padding:28px 0 12px}
  .article-body{font-size:16px}
  .article-body h2{font-size:22px}
  .article-body h3{font-size:18px}
  .cta-band{padding:48px 0}
}
@media (max-width:520px){
  .article-head h1{font-size:26px}
  .rec-media{height:160px}
  .brand-text{font-size:16px}
  .header-inner{gap:14px}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation-duration:.001ms !important;transition-duration:.001ms !important;scroll-behavior:auto !important}
}

/* roulang page: category2 */
:root{
  --bg:#0D0A12;
  --bg-soft:#141020;
  --panel:#1A1428;
  --panel-2:#211936;
  --line:rgba(255,255,255,.08);
  --line-strong:rgba(255,255,255,.16);
  --text:#F2F0F7;
  --text-dim:#A79FB8;
  --primary:#C8FF3D;
  --primary-ink:#0D0A12;
  --secondary:#7A4DFF;
  --accent:#FF3D8B;
  --warn:#FFB020;
  --radius:18px;
  --radius-sm:12px;
  --shadow:0 8px 24px rgba(0,0,0,.45);
  --shadow-hover:0 14px 34px rgba(0,0,0,.55);
  --maxw:1200px;
  --font-num:"Oswald","Barlow Condensed",sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,sans-serif;
  font-size:16px;
  line-height:1.8;
  overflow-x:hidden;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;height:auto}
a{color:inherit;text-decoration:none;transition:color .18s ease}
a:focus-visible,button:focus-visible,input:focus-visible{outline:2px solid var(--primary);outline-offset:3px}
ul,ol{margin:0;padding:0}
p{margin:0 0 1em}
h1,h2,h3,h4{margin:0 0 .5em;font-weight:800;letter-spacing:-.02em;line-height:1.35}
button{font-family:inherit;cursor:pointer}
.container{width:100%;max-width:var(--maxw);margin:0 auto;padding:0 20px}
.grid-margin-x{margin-left:-10px;margin-right:-10px}
.grid-margin-x>.cell{padding-left:10px;padding-right:10px;margin-bottom:20px}

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(13,10,18,.88);
  -webkit-backdrop-filter:blur(12px);
  backdrop-filter:blur(12px);
  border-bottom:1px solid var(--line);
}
.header-inner{
  max-width:var(--maxw);margin:0 auto;padding:0 20px;
  height:68px;display:flex;align-items:center;justify-content:space-between;gap:16px;
}
.logo{display:inline-flex;align-items:center;gap:10px;font-size:18px;font-weight:900;color:var(--text);white-space:nowrap}
.logo .logo-mark{
  width:32px;height:32px;border-radius:10px;display:grid;place-items:center;
  background:linear-gradient(135deg,var(--primary),var(--secondary));
  color:var(--primary-ink);font-family:var(--font-num);font-weight:700;font-size:14px;
}
.logo:hover{color:var(--primary)}
.nav-links{display:flex;align-items:center;gap:22px;font-size:14.5px;font-weight:500}
.nav-links a{position:relative;color:var(--text-dim);padding:6px 0;white-space:nowrap}
.nav-links a::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:2px;border-radius:2px;
  background:var(--primary);transform:scaleX(0);transform-origin:left;transition:transform .2s ease;
}
.nav-links a:hover{color:var(--text)}
.nav-links a:hover::after{transform:scaleX(1)}
.nav-links a.is-active{color:var(--text)}
.nav-links a.is-active::after{transform:scaleX(1)}
.header-actions{display:flex;align-items:center;gap:10px}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:44px;padding:0 20px;border-radius:999px;border:1px solid transparent;
  font-size:15px;font-weight:600;letter-spacing:.02em;cursor:pointer;
  transition:transform .18s ease,box-shadow .18s ease,background .18s ease,color .18s ease,border-color .18s ease;
}
.btn-primary{background:var(--primary);color:var(--primary-ink)}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 0 18px rgba(200,255,61,.35)}
.btn-ghost{background:transparent;color:var(--text);border-color:var(--line-strong)}
.btn-ghost:hover{border-color:var(--primary);color:var(--primary);transform:translateY(-2px)}
.btn-sm{height:38px;padding:0 16px;font-size:14px}
.nav-toggle{
  display:none;width:42px;height:42px;border-radius:12px;border:1px solid var(--line);
  background:var(--panel);color:var(--text);font-size:16px;align-items:center;justify-content:center;
}
.nav-toggle:hover{border-color:var(--primary);color:var(--primary)}

/* ---------- hero ---------- */
.page-hero{position:relative;overflow:hidden;background:var(--bg-soft);padding:46px 0 62px}
.hero-bg{
  position:absolute;inset:0;z-index:0;
  background-size:cover;background-position:center center;opacity:.3;
}
.page-hero::after{
  content:"";position:absolute;inset:0;z-index:1;
  background:linear-gradient(104deg,rgba(13,10,18,.97) 0%,rgba(13,10,18,.82) 48%,rgba(122,77,255,.32) 100%);
}
.page-hero::before{
  content:"";position:absolute;inset:0;z-index:1;opacity:.05;
  background-image:radial-gradient(rgba(255,255,255,.9) 1px,transparent 1px);
  background-size:16px 16px;
}
.hero-slash{
  position:absolute;right:-90px;bottom:-120px;width:320px;height:320px;z-index:1;
  background:linear-gradient(135deg,rgba(200,255,61,.18),rgba(122,77,255,.04));
  transform:rotate(45deg);
}
.hero-inner{position:relative;z-index:2;max-width:820px}
.breadcrumb{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--text-dim);margin-bottom:20px;white-space:nowrap;overflow-x:auto}
.breadcrumb a{color:var(--text-dim)}
.breadcrumb a:hover{color:var(--primary)}
.breadcrumb .sep{color:rgba(255,255,255,.25)}
.breadcrumb .current{color:var(--primary)}
.hero-tag{
  display:inline-flex;align-items:center;gap:8px;height:28px;padding:0 12px;border-radius:6px;
  background:rgba(122,77,255,.18);border:1px solid rgba(122,77,255,.42);
  color:#D9CBFF;font-size:12.5px;font-weight:600;letter-spacing:.06em;margin-bottom:16px;
}
.hero-tag::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--primary)}
.page-hero h1{font-size:32px;font-weight:900;margin-bottom:14px}
.hero-sub{font-size:16px;color:var(--text-dim);max-width:640px;margin-bottom:26px}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-bottom:30px}
.hero-meta{display:flex;flex-wrap:wrap;gap:28px;border-top:1px solid var(--line);padding-top:20px}
.hero-meta li{list-style:none}
.hero-meta .num{font-family:var(--font-num);font-size:26px;font-weight:600;color:var(--primary);display:block;line-height:1.2}
.hero-meta .lbl{font-size:13px;color:var(--text-dim)}

/* ---------- anchor chips ---------- */
.anchor-bar{background:var(--bg);border-bottom:1px solid var(--line)}
.anchor-inner{display:flex;gap:10px;overflow-x:auto;padding:16px 20px;max-width:var(--maxw);margin:0 auto;scrollbar-width:none}
.anchor-inner::-webkit-scrollbar{display:none}
.chip{
  display:inline-flex;align-items:center;flex:0 0 auto;height:36px;padding:0 16px;border-radius:999px;
  background:var(--panel);border:1px solid var(--line);color:var(--text-dim);font-size:14px;font-weight:500;
  transition:all .18s ease;
}
.chip:hover{color:var(--text);border-color:var(--line-strong);transform:translateY(-2px)}
.chip.is-active{background:var(--primary);border-color:var(--primary);color:var(--primary-ink);font-weight:700}

/* ---------- sections ---------- */
.section{padding:64px 0}
.section-alt{background:var(--bg-soft);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.sec-head{max-width:760px;margin-bottom:38px}
.sec-kicker{
  display:inline-block;font-size:12.5px;font-weight:700;letter-spacing:.14em;color:var(--primary);
  margin-bottom:12px;
}
.sec-head h2{font-size:24px;font-weight:900;position:relative;padding-left:16px;margin-bottom:14px}
.sec-head h2::before{
  content:"";position:absolute;left:0;top:6px;width:4px;height:24px;border-radius:2px;
  background:linear-gradient(180deg,var(--secondary),var(--primary));
}
.sec-desc{color:var(--text-dim);font-size:15.5px;margin:0}

/* ---------- timeline ---------- */
.timeline{position:relative;list-style:none;padding:0 0 0 72px;margin:0}
.timeline::before{
  content:"";position:absolute;left:17px;top:10px;bottom:10px;width:2px;border-radius:2px;
  background:linear-gradient(180deg,var(--secondary),var(--primary) 60%,rgba(200,255,61,.05));
}
.tl-item{position:relative;margin-bottom:22px}
.tl-item::before{
  content:"";position:absolute;left:-62px;top:20px;width:16px;height:16px;border-radius:50%;
  background:var(--bg);border:2px solid var(--primary);box-shadow:0 0 0 5px rgba(200,255,61,.09);
}
.tl-card{
  background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);
  padding:22px 24px;box-shadow:var(--shadow);transition:transform .18s ease,box-shadow .18s ease,border-color .18s ease;
}
.tl-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-hover);border-color:rgba(200,255,61,.4)}
.tl-num{
  font-family:var(--font-num);font-size:38px;line-height:1;font-weight:600;
  color:rgba(200,255,61,.92);display:block;margin-bottom:6px;
}
.tl-card h3{font-size:19px;margin-bottom:8px}
.tl-card p{color:var(--text-dim);font-size:15px;margin:0}
.tl-tag{
  display:inline-block;margin-top:12px;height:26px;line-height:24px;padding:0 10px;border-radius:6px;
  font-size:12.5px;color:#D9CBFF;background:rgba(122,77,255,.16);border:1px solid rgba(122,77,255,.4);
}
.tl-tag.is-hot{color:#FFC7DE;background:rgba(255,61,139,.14);border-color:rgba(255,61,139,.4)}

/* ---------- reward cards ---------- */
.reward-card{
  height:100%;background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);
  overflow:hidden;box-shadow:var(--shadow);display:flex;flex-direction:column;
  transition:transform .18s ease,box-shadow .18s ease,border-color .18s ease;
}
.reward-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-hover);border-color:var(--primary)}
.reward-thumb{position:relative;height:168px;overflow:hidden}
.reward-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .35s ease}
.reward-card:hover .reward-thumb img{transform:scale(1.05)}
.reward-thumb::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(13,10,18,.1),rgba(26,20,40,.9))}
.badge{
  position:absolute;top:12px;left:12px;z-index:2;height:26px;line-height:24px;padding:0 10px;border-radius:6px;
  font-size:12.5px;font-weight:600;
}
.badge-purple{background:rgba(122,77,255,.85);color:#fff}
.badge-pink{background:rgba(255,61,139,.88);color:#fff}
.badge-lime{background:rgba(200,255,61,.92);color:var(--primary-ink)}
.reward-body{padding:18px 20px 22px;display:flex;flex-direction:column;flex:1}
.reward-body h3{font-size:18px;margin-bottom:8px}
.reward-body p{color:var(--text-dim);font-size:14.5px;margin:0 0 16px}
.reward-fig{margin-top:auto;display:flex;align-items:baseline;gap:8px;border-top:1px dashed var(--line);padding-top:14px}
.reward-fig .val{font-family:var(--font-num);font-size:24px;font-weight:600;color:var(--primary)}
.reward-fig .unit{font-size:13px;color:var(--text-dim)}

/* ---------- arrival block ---------- */
.arrival-panel{
  background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);
  padding:26px;box-shadow:var(--shadow);height:100%;
}
.arrival-panel h3{font-size:18px;margin-bottom:18px}
.check-list{list-style:none}
.check-list li{position:relative;padding-left:22px;margin-bottom:14px;color:var(--text-dim);font-size:15px}
.check-list li::before{
  content:"";position:absolute;left:0;top:9px;width:9px;height:9px;border-radius:2px;
  background:var(--primary);
}
.check-list li strong{color:var(--text);font-weight:600}
.time-rows{list-style:none}
.time-rows li{
  display:flex;align-items:center;justify-content:space-between;gap:14px;
  padding:14px 0;border-bottom:1px dashed var(--line);
}
.time-rows li:last-child{border-bottom:0}
.time-rows .t-name{font-size:15px;color:var(--text)}
.time-rows .t-val{font-family:var(--font-num);font-size:20px;font-weight:600;color:var(--primary);white-space:nowrap}
.note-band{
  margin-top:26px;display:flex;gap:14px;align-items:flex-start;
  background:rgba(255,176,32,.08);border:1px solid rgba(255,176,32,.32);
  border-radius:var(--radius-sm);padding:16px 18px;
}
.note-band i{color:var(--warn);font-size:17px;margin-top:4px}
.note-band p{margin:0;font-size:14.5px;color:#F3DFB8}

/* ---------- faq ---------- */
.faq-list{max-width:900px}
.faq-item{
  background:var(--panel);border:1px solid var(--line);border-radius:14px;
  margin-bottom:12px;overflow:hidden;transition:border-color .18s ease,background .18s ease;
}
.faq-item.is-open{border-color:rgba(200,255,61,.45);background:var(--bg-soft);box-shadow:inset 3px 0 0 var(--primary)}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
  background:transparent;border:0;color:var(--text);text-align:left;
  padding:16px 20px;font-size:16px;font-weight:600;min-height:56px;
}
.faq-q i{color:var(--primary);font-size:14px;transition:transform .22s ease;flex:0 0 auto}
.faq-item.is-open .faq-q i{transform:rotate(135deg)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .28s ease}
.faq-a p{margin:0;padding:0 20px 20px;color:var(--text-dim);font-size:15px}

/* ---------- cta ---------- */
.cta-band{
  position:relative;overflow:hidden;background:var(--panel-2);
  border-top:1px solid var(--line);border-bottom:1px solid var(--line);
}
.cta-band::before{
  content:"";position:absolute;left:-120px;top:-120px;width:520px;height:520px;
  background:linear-gradient(135deg,rgba(200,255,61,.16),rgba(122,77,255,.08));
  transform:rotate(45deg);
}
.cta-inner{position:relative;z-index:1;padding:56px 0;display:flex;align-items:center;justify-content:space-between;gap:32px}
.cta-text h2{font-size:24px;margin-bottom:10px}
.cta-text p{color:var(--text-dim);margin:0;font-size:15.5px;max-width:560px}
.cta-actions{display:flex;gap:14px;flex-wrap:wrap}
.btn-lg{height:52px;padding:0 30px;font-size:16px}

/* ---------- footer ---------- */
.site-footer{background:var(--bg-soft);border-top:1px solid var(--line);padding:56px 0 0}
.footer-brand{font-size:18px;font-weight:900;color:var(--text);margin-bottom:12px}
.footer-brand span{color:var(--primary)}
.footer-col p{color:var(--text-dim);font-size:14.5px}
.footer-col h4{font-size:15px;font-weight:700;position:relative;padding-bottom:10px;margin-bottom:16px}
.footer-col h4::after{content:"";position:absolute;left:0;bottom:0;width:26px;height:3px;border-radius:2px;background:var(--primary)}
.footer-links{list-style:none}
.footer-links li{margin-bottom:10px}
.footer-links a{color:var(--text-dim);font-size:14.5px}
.footer-links a:hover{color:var(--primary)}
.footer-note{display:inline-flex;align-items:center;gap:8px;color:var(--text-dim);font-size:14px;margin:0}
.footer-note i{color:var(--primary)}
.footer-bottom{
  margin-top:34px;border-top:1px solid var(--line);padding:18px 0 26px;
  display:flex;justify-content:space-between;gap:14px;flex-wrap:wrap;
}
.footer-bottom p{margin:0;font-size:13px;color:var(--text-dim)}

/* ---------- mobile tabbar ---------- */
.tabbar{
  display:none;position:fixed;left:0;right:0;bottom:0;z-index:70;
  height:60px;padding-bottom:env(safe-area-inset-bottom);
  background:var(--panel);border-top:1px solid var(--line);
}
.tab-item{
  flex:1;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:3px;
  color:var(--text-dim);font-size:10px;position:relative;
}
.tab-item i{font-size:18px}
.tab-item.is-active{color:var(--primary)}
.tab-item.is-active::before{content:"";position:absolute;top:0;width:28px;height:3px;border-radius:0 0 3px 3px;background:var(--primary)}

/* ---------- responsive ---------- */
@media (max-width:1023px){
  .container{padding:0 20px}
  .nav-toggle{display:inline-flex}
  .nav-links{
    display:none;position:absolute;left:0;right:0;top:68px;
    flex-direction:column;align-items:stretch;gap:0;
    background:var(--panel);border-bottom:1px solid var(--line);
    padding:10px 20px 18px;box-shadow:0 18px 30px rgba(0,0,0,.45);
  }
  .nav-links a{padding:12px 0;font-size:15px;border-bottom:1px solid var(--line)}
  .nav-links a:last-child{border-bottom:0}
  .nav-links a::after{display:none}
  .nav-links a.is-active{color:var(--primary)}
  .site-header.is-open .nav-links{display:flex}
  .page-hero h1{font-size:36px}
  .sec-head h2{font-size:26px}
}
@media (max-width:767px){
  body{padding-bottom:76px;font-size:16px}
  .header-inner{height:62px;padding:0 16px}
  .nav-links{top:62px}
  .header-actions .btn{display:none}
  .page-hero{padding:32px 0 46px}
  .page-hero h1{font-size:31px}
  .hero-sub{font-size:15.5px}
  .hero-meta{gap:18px;justify-content:space-between}
  .hero-meta .num{font-size:22px}
  .section{padding:44px 0}
  .sec-head{margin-bottom:26px}
  .sec-head h2{font-size:22px}
  .timeline{padding-left:52px}
  .timeline::before{left:11px}
  .tl-item::before{left:-48px;top:18px;width:14px;height:14px}
  .tl-card{padding:18px 18px}
  .tl-num{font-size:30px}
  .cta-inner{flex-direction:column;align-items:flex-start;padding:44px 0;gap:22px}
  .cta-actions{width:100%;flex-direction:column}
  .cta-actions .btn{width:100%}
  .tabbar{display:flex}
  .anchor-inner{padding:14px 16px}
  .footer-bottom{flex-direction:column}
}
@media (min-width:1024px){
  .container{padding:0 28px}
  .header-inner{padding:0 28px}
  .page-hero{padding:66px 0 78px}
  .page-hero h1{font-size:52px}
  .hero-sub{font-size:17px}
  .sec-head h2{font-size:32px}
  .cta-text h2{font-size:30px}
}
@media (prefers-reduced-motion:reduce){
  *{animation-duration:.001ms !important;transition-duration:.001ms !important}
}

/* roulang page: category3 */
:root{
  --bg:#0D0A12;
  --bg-soft:#141020;
  --panel:#1A1428;
  --line:rgba(255,255,255,.08);
  --text:#F2F0F7;
  --text-dim:#A79FB8;
  --primary:#C8FF3D;
  --primary-ink:#0D0A12;
  --secondary:#7A4DFF;
  --accent:#FF3D8B;
  --warn:#FFB020;
  --radius:18px;
  --radius-sm:12px;
  --radius-pill:999px;
  --shadow:0 8px 24px rgba(0,0,0,.45);
  --shadow-hover:0 14px 34px rgba(0,0,0,.55);
  --num:"Oswald","Barlow Condensed","Arial Narrow",sans-serif;
  --font:"PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,"Segoe UI",sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:var(--font);
  font-size:16px;
  line-height:1.8;
  font-weight:400;
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4,h5,h6{
  margin:0;
  font-family:var(--font);
  color:var(--text);
  font-weight:800;
  letter-spacing:-.02em;
  line-height:1.28;
}
p{margin:0 0 1rem;color:var(--text-dim)}
p:last-child{margin-bottom:0}
a{color:inherit;text-decoration:none;transition:color .18s ease,background .18s ease}
img{max-width:100%;display:block;border:0}
ul,ol{margin:0;padding:0;list-style:none}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer}
input{font:inherit}
:focus-visible{outline:2px solid var(--primary);outline-offset:2px}

/* 基础容器 */
.grid-container{
  max-width:1200px;
  margin-left:auto;
  margin-right:auto;
  padding-left:20px;
  padding-right:20px;
  width:100%;
}
@media screen and (min-width:1024px){
  .grid-container{padding-left:28px;padding-right:28px}
}

/* 顶部导航 */
.site-header{
  position:sticky;
  top:0;
  z-index:70;
  background:rgba(13,10,18,.88);
  backdrop-filter:blur(12px);
  -webkit-backdrop-filter:blur(12px);
  border-bottom:1px solid var(--line);
}
.header-inner{
  display:flex;
  align-items:center;
  gap:18px;
  height:68px;
}
.logo{
  display:flex;
  align-items:center;
  gap:10px;
  font-size:18px;
  font-weight:900;
  letter-spacing:-.01em;
  color:var(--text);
  flex-shrink:0;
}
.logo-mark{
  width:30px;
  height:30px;
  border-radius:9px;
  background:linear-gradient(135deg,var(--primary),var(--secondary));
  color:var(--primary-ink);
  display:grid;
  place-items:center;
  font-family:var(--num);
  font-size:15px;
  font-weight:700;
  letter-spacing:0;
}
.logo:hover .logo-mark{box-shadow:0 0 16px rgba(200,255,61,.4)}
.nav-links{
  display:flex;
  align-items:center;
  gap:2px;
  margin-left:auto;
}
.nav-links a{
  position:relative;
  display:block;
  padding:8px 12px;
  border-radius:var(--radius-pill);
  color:var(--text-dim);
  font-size:15px;
  font-weight:500;
  white-space:nowrap;
}
.nav-links a:hover{color:var(--text);background:rgba(255,255,255,.05)}
.nav-links a.is-active{color:var(--primary);font-weight:600}
.nav-links a.is-active::after{
  content:"";
  position:absolute;
  left:12px;
  right:12px;
  bottom:1px;
  height:2px;
  border-radius:2px;
  background:var(--primary);
}
.header-cta{margin-left:6px}

/* 按钮 */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  height:42px;
  padding:0 20px;
  border-radius:var(--radius-pill);
  font-size:15px;
  font-weight:600;
  letter-spacing:.02em;
  white-space:nowrap;
  transition:transform .18s ease,box-shadow .18s ease,background .18s ease,color .18s ease,border-color .18s ease;
}
.btn i{font-size:14px}
.btn-primary{background:var(--primary);color:var(--primary-ink)}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 0 18px rgba(200,255,61,.35);color:var(--primary-ink)}
.btn-ghost{border:1px solid var(--line);color:var(--text);background:rgba(255,255,255,.02)}
.btn-ghost:hover{border-color:var(--primary);color:var(--primary);transform:translateY(-2px)}
.btn-lg{height:52px;padding:0 28px;font-size:16px}
.btn:active{transform:translateY(0)}

/* 面包屑 */
.crumb-bar{border-bottom:1px solid var(--line);background:var(--bg-soft)}
.crumb{
  display:flex;
  align-items:center;
  gap:10px;
  font-size:13px;
  color:var(--text-dim);
  padding:12px 0;
  overflow-x:auto;
  white-space:nowrap;
  scrollbar-width:none;
}
.crumb::-webkit-scrollbar{display:none}
.crumb a:hover{color:var(--primary)}
.crumb .sep{color:rgba(167,159,184,.5)}
.crumb .current{color:var(--primary);font-weight:600}

/* Hero */
.page-hero{
  position:relative;
  overflow:hidden;
  background-color:var(--bg);
  background-image:
    linear-gradient(115deg,rgba(13,10,18,.95) 0%,rgba(13,10,18,.82) 46%,rgba(26,20,40,.78) 100%),
    url(/assets/images/backpic/back-2.png);
  background-size:cover;
  background-position:center;
}
.page-hero::after{
  content:"";
  position:absolute;
  left:0;right:0;bottom:-1px;
  height:64px;
  background:var(--bg);
  clip-path:polygon(0 100%,100% 0,100% 100%);
}
.hero-grid{
  position:relative;
  z-index:2;
  display:grid;
  grid-template-columns:1.12fr .88fr;
  gap:44px;
  align-items:center;
  padding:62px 0 86px;
}
.hero-badge{
  display:inline-flex;
  align-items:center;
  gap:8px;
  padding:5px 14px;
  border-radius:var(--radius-pill);
  border:1px solid rgba(200,255,61,.35);
  background:rgba(200,255,61,.1);
  color:var(--primary);
  font-size:13px;
  font-weight:600;
  letter-spacing:.04em;
  margin-bottom:18px;
}
.hero-badge i{font-size:12px}
.page-hero h1{
  font-size:clamp(32px,5vw,56px);
  font-weight:900;
  line-height:1.16;
  margin-bottom:18px;
}
.page-hero h1 em{
  font-style:normal;
  color:var(--primary);
}
.hero-sub{
  font-size:17px;
  line-height:1.8;
  color:var(--text-dim);
  max-width:34em;
  margin-bottom:26px;
}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px}
.hero-figure{
  position:relative;
  border-radius:var(--radius);
  overflow:hidden;
  border:1px solid var(--line);
  box-shadow:var(--shadow);
}
.hero-figure img{
  width:100%;
  height:320px;
  object-fit:cover;
}
.hero-figure::before{
  content:"";
  position:absolute;
  inset:0;
  background:linear-gradient(160deg,rgba(122,77,255,.22),rgba(13,10,18,.6) 78%);
  z-index:1;
}
.hero-stat{
  position:absolute;
  z-index:2;
  left:20px;
  bottom:20px;
  display:flex;
  align-items:flex-end;
  gap:12px;
  padding:14px 18px;
  border-radius:var(--radius-sm);
  background:rgba(13,10,18,.78);
  border:1px solid var(--line);
}
.hero-stat .n{
  font-family:var(--num);
  font-size:34px;
  font-weight:700;
  color:var(--primary);
  line-height:1;
}
.hero-stat .t{font-size:13px;color:var(--text-dim);line-height:1.4}
.hero-corner{
  position:absolute;
  z-index:2;
  top:16px;
  right:16px;
  padding:6px 12px;
  border-radius:6px;
  background:rgba(255,61,139,.9);
  color:#fff;
  font-size:12px;
  font-weight:700;
  letter-spacing:.04em;
}
.pill-bar{
  position:relative;
  z-index:2;
  display:flex;
  flex-wrap:wrap;
  gap:10px;
  padding-bottom:64px;
}
.pill{
  display:inline-block;
  padding:8px 16px;
  border-radius:var(--radius-pill);
  border:1px solid var(--line);
  background:rgba(255,255,255,.04);
  color:var(--text-dim);
  font-size:14px;
  transition:all .18s ease;
}
.pill:hover{color:var(--text);border-color:rgba(200,255,61,.4)}
.pill.is-current{background:var(--primary);border-color:var(--primary);color:var(--primary-ink);font-weight:600}

/* 板块 */
.section{padding:72px 0}
.section-alt{
  background-color:var(--bg-soft);
  background-image:radial-gradient(rgba(255,255,255,.05) 1px,transparent 1px);
  background-size:22px 22px;
  border-top:1px solid var(--line);
  border-bottom:1px solid var(--line);
}
.section-head{max-width:760px;margin-bottom:38px}
.eyebrow{
  display:inline-flex;
  align-items:center;
  gap:8px;
  font-size:13px;
  font-weight:600;
  letter-spacing:.08em;
  color:var(--primary);
  margin-bottom:12px;
}
.eyebrow::before{
  content:"";
  width:18px;
  height:2px;
  border-radius:2px;
  background:var(--primary);
}
.section-title{
  font-size:clamp(24px,3vw,34px);
  display:flex;
  align-items:center;
  gap:14px;
  margin-bottom:14px;
}
.section-title::before{
  content:"";
  width:4px;
  height:26px;
  border-radius:2px;
  background:var(--secondary);
  flex-shrink:0;
}
.section-desc{font-size:16px;color:var(--text-dim);max-width:44em}

/* 对比卡片 */
.compare-grid{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:20px;
}
.card{
  display:flex;
  flex-direction:column;
  background:var(--panel);
  border:1px solid var(--line);
  border-radius:var(--radius);
  box-shadow:var(--shadow);
  overflow:hidden;
  transition:transform .18s ease,box-shadow .18s ease;
}
.card:hover{
  transform:translateY(-2px);
  box-shadow:var(--shadow-hover),0 0 0 1px var(--primary);
}
.card-media{position:relative;height:176px;overflow:hidden}
.card-media img{width:100%;height:100%;object-fit:cover}
.card-media .badge{position:absolute;left:14px;top:14px}
.card-body{padding:20px 22px 24px;display:flex;flex-direction:column;gap:12px;flex:1}
.card-body h3{font-size:19px}
.card-body .card-text{font-size:14px;color:var(--text-dim);line-height:1.75;margin:0}
.spec-list{margin-top:auto;padding-top:6px}
.spec-row{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:12px;
  padding:9px 0;
  border-top:1px dashed rgba(255,255,255,.09);
  font-size:14px;
}
.spec-row:first-child{border-top:0}
.spec-key{color:var(--text-dim)}
.spec-val{color:var(--text);font-weight:600}
.spec-val.is-hot{color:var(--primary)}
.badge{
  display:inline-block;
  padding:3px 10px;
  border-radius:6px;
  font-size:12px;
  font-weight:600;
  letter-spacing:.02em;
  line-height:1.6;
}
.badge-purple{background:rgba(122,77,255,.18);color:#BCA6FF;border:1px solid rgba(122,77,255,.42)}
.badge-magenta{background:rgba(255,61,139,.16);color:#FF8EBA;border:1px solid rgba(255,61,139,.42)}
.badge-lime{background:rgba(200,255,61,.14);color:var(--primary);border:1px solid rgba(200,255,61,.36)}

/* 线路对照 */
.meter-card{
  background:var(--panel);
  border:1px solid var(--line);
  border-radius:var(--radius);
  box-shadow:var(--shadow);
  padding:26px 28px;
}
.meter{
  display:grid;
  grid-template-columns:170px 1fr 104px;
  gap:20px;
  align-items:center;
  padding:16px 0;
  border-top:1px solid var(--line);
}
.meter:first-child{border-top:0}
.meter-name{font-size:16px;font-weight:600;color:var(--text)}
.meter-name span{display:block;font-size:13px;font-weight:400;color:var(--text-dim)}
.meter-track{
  height:9px;
  border-radius:var(--radius-pill);
  background:rgba(255,255,255,.07);
  overflow:hidden;
}
.meter-fill{
  display:block;
  height:100%;
  border-radius:var(--radius-pill);
  width:var(--val,60%);
  background:linear-gradient(90deg,var(--primary),var(--warn));
  animation:grow .6s ease both;
}
@keyframes grow{from{width:0}}
.meter-value{
  text-align:right;
  font-family:var(--num);
  font-size:24px;
  font-weight:700;
  color:var(--text);
  line-height:1;
}
.meter-value small{display:block;font-family:var(--font);font-size:12px;font-weight:400;color:var(--text-dim);margin-top:4px}
.meter-foot{
  margin-top:18px;
  padding-top:16px;
  border-top:1px solid var(--line);
  font-size:13px;
  color:var(--text-dim);
}

/* 清单双栏 */
.split-grid{
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:20px;
}
.panel-box{
  background:var(--panel);
  border:1px solid var(--line);
  border-radius:var(--radius);
  box-shadow:var(--shadow);
  padding:28px 30px;
}
.panel-box h3{
  font-size:20px;
  margin-bottom:8px;
  display:flex;
  align-items:center;
  gap:10px;
}
.panel-box h3 i{color:var(--primary);font-size:16px}
.panel-box .lead{font-size:14px;color:var(--text-dim);margin-bottom:20px}
.check-list li{
  position:relative;
  padding-left:26px;
  margin-bottom:13px;
  font-size:15px;
  color:var(--text-dim);
  line-height:1.75;
}
.check-list li::before{
  content:"";
  position:absolute;
  left:0;
  top:.64em;
  width:8px;
  height:8px;
  border-radius:2px;
  background:var(--primary);
}
.step-list{counter-reset:step}
.step-list li{
  position:relative;
  padding-left:42px;
  margin-bottom:16px;
  font-size:15px;
  color:var(--text-dim);
  line-height:1.75;
}
.step-list li::before{
  counter-increment:step;
  content:counter(step,decimal-leading-zero);
  position:absolute;
  left:0;
  top:2px;
  width:28px;
  height:28px;
  border-radius:9px;
  border:1px solid rgba(122,77,255,.5);
  background:rgba(122,77,255,.16);
  color:#BCA6FF;
  font-family:var(--num);
  font-size:13px;
  font-weight:700;
  display:grid;
  place-items:center;
  line-height:1;
}

/* FAQ */
.faq-list{max-width:900px}
.faq-item{
  background:var(--panel);
  border:1px solid var(--line);
  border-radius:14px;
  margin-bottom:12px;
  overflow:hidden;
  transition:background .18s ease,border-color .18s ease;
}
.faq-item:hover{border-color:rgba(200,255,61,.28)}
.faq-item[open]{
  background:var(--bg-soft);
  border-color:rgba(200,255,61,.36);
}
.faq-item summary{
  list-style:none;
  cursor:pointer;
  padding:17px 22px;
  font-size:16px;
  font-weight:600;
  color:var(--text);
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{
  content:"+";
  font-family:var(--num);
  font-size:22px;
  line-height:1;
  color:var(--primary);
  transition:transform .2s ease;
  flex-shrink:0;
}
.faq-item[open] summary::after{transform:rotate(45deg)}
.faq-item[open] summary{box-shadow:inset 3px 0 0 var(--primary)}
.faq-answer{
  padding:0 22px 20px;
  font-size:15px;
  color:var(--text-dim);
  line-height:1.8;
}

/* CTA */
.cta-band{
  padding:64px 0;
  background:var(--bg-soft);
  border-top:1px solid var(--line);
}
.cta-box{
  position:relative;
  overflow:hidden;
  border-radius:24px;
  border:1px solid var(--line);
  padding:48px;
  background:linear-gradient(118deg,#2A1B57 0%,#141020 48%,#331139 100%);
  box-shadow:var(--shadow);
}
.cta-box::after{
  content:"";
  position:absolute;
  top:-46%;
  right:-8%;
  width:380px;
  height:380px;
  background:radial-gradient(circle,rgba(200,255,61,.2),transparent 66%);
  pointer-events:none;
}
.cta-inner{
  position:relative;
  z-index:1;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:34px;
}
.cta-copy h2{font-size:clamp(24px,3vw,32px);margin-bottom:12px}
.cta-copy p{font-size:15px;color:var(--text-dim);max-width:32em}
.cta-form-wrap{min-width:320px}
.subscribe-form{display:flex;gap:10px}
.subscribe-form input{
  flex:1;
  min-width:0;
  height:48px;
  padding:0 16px;
  border-radius:var(--radius-sm);
  border:1px solid var(--line);
  background:rgba(255,255,255,.05);
  color:var(--text);
  font-size:15px;
  outline:none;
  transition:border-color .18s ease,box-shadow .18s ease;
}
.subscribe-form input::placeholder{color:rgba(167,159,184,.8)}
.subscribe-form input:focus{
  border-color:var(--primary);
  box-shadow:0 0 0 4px rgba(200,255,61,.16);
}
.subscribe-form button{
  height:48px;
  padding:0 22px;
  border-radius:var(--radius-sm);
  background:var(--primary);
  color:var(--primary-ink);
  font-weight:700;
  font-size:15px;
  white-space:nowrap;
  transition:transform .18s ease,box-shadow .18s ease;
}
.subscribe-form button:hover{transform:translateY(-2px);box-shadow:0 0 18px rgba(200,255,61,.35)}
.form-tip{
  margin-top:10px;
  font-size:13px;
  color:var(--accent);
  min-height:20px;
}
.form-tip.is-show{color:var(--primary)}

/* 页脚 */
.site-footer{
  background:#0A0810;
  border-top:1px solid var(--line);
  padding-top:56px;
  font-size:14px;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.5fr 1fr 1fr 1.2fr;
  gap:34px;
}
.footer-brand .logo{margin-bottom:14px}
.footer-brand p{font-size:13.5px;color:var(--text-dim);line-height:1.8;margin-bottom:14px}
.footer-tag{
  display:inline-flex;
  align-items:center;
  gap:8px;
  padding:6px 12px;
  border-radius:var(--radius-pill);
  border:1px solid var(--line);
  background:rgba(255,255,255,.03);
  font-size:12.5px;
  color:var(--text-dim);
}
.footer-tag i{color:var(--primary);font-size:12px}
.footer-col h4{
  font-size:15px;
  font-weight:700;
  margin-bottom:16px;
  padding-bottom:10px;
  position:relative;
}
.footer-col h4::after{
  content:"";
  position:absolute;
  left:0;
  bottom:0;
  width:22px;
  height:3px;
  border-radius:2px;
  background:var(--primary);
}
.footer-col a{
  display:block;
  padding:5px 0;
  color:var(--text-dim);
  font-size:13.5px;
}
.footer-col a:hover{color:var(--primary);padding-left:4px}
.footer-col li{line-height:1.7;color:var(--text-dim);font-size:13.5px}
.footer-bottom{
  margin-top:44px;
  border-top:1px solid var(--line);
  padding:18px 0;
  display:flex;
  justify-content:space-between;
  align-items:center;
  gap:14px;
  flex-wrap:wrap;
  font-size:13px;
  color:var(--text-dim);
}

/* 移动底部 Tab */
.mobile-tab{display:none}
@media screen and (max-width:767px){
  body{padding-bottom:76px}
  .nav-links{display:none}
  .header-cta{display:none}
  .mobile-tab{
    display:grid;
    grid-template-columns:repeat(5,1fr);
    position:fixed;
    left:0;right:0;bottom:0;
    z-index:90;
    height:60px;
    padding-bottom:env(safe-area-inset-bottom);
    background:var(--panel);
    border-top:1px solid var(--line);
  }
  .mobile-tab a{
    position:relative;
    display:flex;
    flex-direction:column;
    align-items:center;
    justify-content:center;
    gap:3px;
    font-size:10px;
    color:var(--text-dim);
  }
  .mobile-tab a i{font-size:18px}
  .mobile-tab a.is-active{color:var(--primary)}
  .mobile-tab a.is-active::before{
    content:"";
    position:absolute;
    top:0;
    left:50%;
    transform:translateX(-50%);
    width:26px;
    height:3px;
    border-radius:0 0 3px 3px;
    background:var(--primary);
  }
}

/* 响应式 */
@media screen and (max-width:1023px){
  .compare-grid{grid-template-columns:repeat(2,1fr)}
  .hero-grid{grid-template-columns:1fr;gap:32px;padding:48px 0 72px}
  .hero-figure img{height:260px}
  .footer-grid{grid-template-columns:1fr 1fr}
  .cta-inner{flex-direction:column;align-items:flex-start}
  .cta-form-wrap{min-width:0;width:100%}
}
@media screen and (max-width:900px){
  .split-grid{grid-template-columns:1fr}
  .section{padding:56px 0}
}
@media screen and (max-width:767px){
  .page-hero::after{height:36px}
  .hero-grid{padding:38px 0 52px}
  .pill-bar{padding-bottom:48px}
  .compare-grid{grid-template-columns:1fr}
  .meter{grid-template-columns:1fr;gap:10px}
  .meter-value{text-align:left}
  .cta-box{padding:30px 22px;border-radius:20px}
  .panel-box{padding:22px 20px}
  .meter-card{padding:20px}
  .section{padding:48px 0}
  .footer-grid{grid-template-columns:1fr;gap:26px}
  .footer-bottom{flex-direction:column;align-items:flex-start}
}
@media screen and (max-width:520px){
  .hero-actions .btn{width:100%}
  .subscribe-form{flex-direction:column}
  .subscribe-form button{width:100%}
  .hero-figure img{height:220px}
  .hero-stat{padding:10px 14px}
  .hero-stat .n{font-size:26px}
}
@media (prefers-reduced-motion: reduce){
  *,*::before,*::after{animation:none!important;transition:none!important}
}

/* roulang page: category4 */
:root{
  --bg:#0D0A12;
  --bg-soft:#141020;
  --panel:#1A1428;
  --line:rgba(255,255,255,.08);
  --line-strong:rgba(255,255,255,.16);
  --text:#F2F0F7;
  --text-dim:#A79FB8;
  --primary:#C8FF3D;
  --primary-ink:#0D0A12;
  --secondary:#7A4DFF;
  --accent:#FF3D8B;
  --warn:#FFB020;
  --radius-card:18px;
  --radius-pill:999px;
  --radius-input:12px;
  --shadow-card:0 8px 24px rgba(0,0,0,.45);
  --shadow-hover:0 14px 34px rgba(0,0,0,.55);
  --font-cn:"PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,sans-serif;
  --font-num:"Oswald","Barlow Condensed","PingFang SC",sans-serif;
  --wrap:1200px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:var(--font-cn);
  font-size:16px;
  line-height:1.8;
  font-weight:400;
  letter-spacing:0;
  overflow-x:hidden;
}
img{max-width:100%;display:block;border:0}
a{color:inherit;text-decoration:none;transition:color .18s ease,border-color .18s ease,background-color .18s ease}
a:hover{color:var(--primary)}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4{margin:0;font-weight:800;letter-spacing:-.02em;line-height:1.25}
p{margin:0 0 1em}
button,input{font-family:inherit;font-size:inherit}
button{cursor:pointer}
:focus-visible{outline:2px solid var(--primary);outline-offset:3px;border-radius:4px}
::selection{background:var(--primary);color:var(--primary-ink)}
.container{width:100%;max-width:var(--wrap);margin:0 auto;padding:0 20px}
@media (min-width:1024px){ .container{padding:0 28px} }

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(13,10,18,.86);
  backdrop-filter:blur(12px);
  -webkit-backdrop-filter:blur(12px);
  border-bottom:1px solid var(--line);
}
.header-inner{display:flex;align-items:center;gap:18px;height:64px}
.logo{display:flex;align-items:center;gap:10px;font-size:18px;font-weight:900;letter-spacing:-.02em;color:var(--text);flex-shrink:0}
.logo:hover{color:var(--text)}
.logo .mark{
  width:30px;height:30px;border-radius:9px;display:grid;place-items:center;
  background:linear-gradient(135deg,var(--primary),var(--secondary));
  color:var(--primary-ink);font-size:14px;font-weight:900;
  box-shadow:0 0 16px rgba(200,255,61,.25);
}
.logo span.hl{color:var(--primary)}
.nav-links{display:none;align-items:center;gap:4px;margin-left:auto}
.nav-links a{
  position:relative;padding:8px 12px;border-radius:var(--radius-pill);
  font-size:14.5px;font-weight:500;color:var(--text-dim);white-space:nowrap;
}
.nav-links a:hover{color:var(--text);background:rgba(255,255,255,.05)}
.nav-links a.is-active{color:var(--text);font-weight:700}
.nav-links a.is-active::after{
  content:"";position:absolute;left:12px;right:12px;bottom:1px;height:2px;
  background:var(--primary);border-radius:2px;
}
.header-cta{
  display:none;margin-left:6px;
  padding:9px 20px;border-radius:var(--radius-pill);
  background:var(--primary);color:var(--primary-ink);font-weight:700;font-size:15px;
  letter-spacing:.02em;transition:transform .18s ease,box-shadow .18s ease;
}
.header-cta:hover{color:var(--primary-ink);transform:translateY(-2px);box-shadow:0 0 18px rgba(200,255,61,.35)}
.nav-toggle{
  margin-left:auto;display:inline-flex;align-items:center;justify-content:center;
  width:42px;height:42px;border-radius:12px;border:1px solid var(--line);
  background:var(--panel);color:var(--text);
}
.nav-toggle:hover{border-color:var(--line-strong)}
.mobile-nav{display:none;border-top:1px solid var(--line);background:var(--bg-soft)}
.mobile-nav.is-open{display:block}
.mobile-nav ul{padding:10px 20px 16px}
.mobile-nav li{border-bottom:1px solid var(--line)}
.mobile-nav li:last-child{border-bottom:0}
.mobile-nav a{display:block;padding:13px 2px;font-size:15px;color:var(--text-dim)}
.mobile-nav a.is-active{color:var(--primary);font-weight:700}
@media (min-width:1024px){
  .nav-links{display:flex}
  .header-cta{display:inline-flex}
  .nav-toggle{display:none}
  .mobile-nav{display:none !important}
}

/* ---------- breadcrumb ---------- */
.crumb-wrap{border-bottom:1px solid var(--line);background:var(--bg-soft)}
.crumb{display:flex;align-items:center;gap:8px;padding:12px 0;font-size:13px;color:var(--text-dim);overflow-x:auto;white-space:nowrap;scrollbar-width:none}
.crumb::-webkit-scrollbar{display:none}
.crumb a{color:var(--text-dim)}
.crumb .sep{opacity:.45}
.crumb .now{color:var(--primary);font-weight:600}

/* ---------- hero ---------- */
.hero{
  position:relative;overflow:hidden;
  background-image:linear-gradient(100deg,rgba(13,10,18,.96) 0%,rgba(13,10,18,.82) 42%,rgba(13,10,18,.42) 100%),url('/assets/images/backpic/back-1.webp');
  background-size:cover;background-position:center;
  border-bottom:1px solid var(--line);
}
.hero::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:70px;
  background:linear-gradient(to bottom right,transparent 49.4%,var(--bg) 50%);
  pointer-events:none;
}
.hero-grid{position:relative;z-index:2;display:grid;gap:32px;padding:48px 0 84px}
.hero-tag{
  display:inline-flex;align-items:center;gap:8px;
  padding:5px 14px;border-radius:6px;font-size:13px;font-weight:600;
  background:rgba(122,77,255,.22);border:1px solid rgba(122,77,255,.55);color:#D9CBFF;
  width:fit-content;
}
.hero-tag i{color:var(--primary);font-size:12px}
.hero h1{font-size:32px;font-weight:900;margin:18px 0 14px}
.hero h1 em{font-style:normal;color:var(--primary);display:block;font-size:18px;font-weight:700;letter-spacing:0;margin-top:10px;color:var(--text-dim)}
.hero-sub{font-size:16px;color:var(--text-dim);max-width:620px;margin-bottom:26px}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:9px;
  height:52px;padding:0 28px;border-radius:var(--radius-pill);
  font-size:16px;font-weight:700;letter-spacing:.02em;border:1px solid transparent;
  transition:transform .18s ease,box-shadow .18s ease,background-color .18s ease,border-color .18s ease,color .18s ease;
}
.btn-primary{background:var(--primary);color:var(--primary-ink)}
.btn-primary:hover{color:var(--primary-ink);transform:translateY(-2px);box-shadow:0 0 18px rgba(200,255,61,.35)}
.btn-ghost{background:transparent;color:var(--text);border-color:var(--line-strong)}
.btn-ghost:hover{color:var(--primary);border-color:var(--primary);transform:translateY(-2px)}
.hero-stats{display:flex;flex-wrap:wrap;gap:26px;margin-top:34px;padding-top:24px;border-top:1px solid var(--line)}
.hero-stats .cell{min-width:120px}
.hero-stats .num{font-family:var(--font-num);font-size:30px;font-weight:700;color:var(--primary);line-height:1.1;letter-spacing:.01em}
.hero-stats .lab{font-size:13px;color:var(--text-dim);margin-top:4px}
.hero-visual{
  position:relative;border-radius:var(--radius-card);overflow:hidden;
  border:1px solid var(--line);box-shadow:var(--shadow-card);
  aspect-ratio:16/11;background:var(--panel);
}
.hero-visual img{width:100%;height:100%;object-fit:cover}
.hero-visual .chip{
  position:absolute;left:16px;bottom:16px;z-index:2;
  padding:8px 14px;border-radius:var(--radius-pill);font-size:13px;font-weight:600;
  background:rgba(13,10,18,.78);border:1px solid var(--line-strong);color:var(--text);
}
@media (min-width:768px){
  .hero-grid{grid-template-columns:1.05fr .95fr;align-items:center;padding:64px 0 96px}
  .hero h1{font-size:44px}
}
@media (min-width:1024px){
  .hero-grid{padding:72px 0 110px;gap:48px}
  .hero h1{font-size:56px}
  .hero h1 em{font-size:20px}
}

/* ---------- pills ---------- */
.pill-bar{
  position:sticky;top:64px;z-index:40;
  background:rgba(20,16,32,.92);backdrop-filter:blur(10px);
  border-bottom:1px solid var(--line);
}
.pill-scroll{display:flex;gap:10px;padding:14px 0;overflow-x:auto;scrollbar-width:none}
.pill-scroll::-webkit-scrollbar{display:none}
.pill{
  flex:0 0 auto;padding:8px 18px;border-radius:var(--radius-pill);
  border:1px solid var(--line-strong);color:var(--text-dim);
  font-size:14px;font-weight:600;white-space:nowrap;
}
.pill:hover{color:var(--text);border-color:var(--primary)}
.pill.is-active{background:var(--primary);border-color:var(--primary);color:var(--primary-ink)}
.pill.is-active:hover{color:var(--primary-ink)}

/* ---------- sections ---------- */
.section{padding:56px 0}
.section.alt{background:var(--bg-soft);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.section-head{max-width:760px;margin-bottom:34px}
.section-head .kicker{
  display:inline-block;font-family:var(--font-num);font-size:13px;letter-spacing:.16em;
  color:var(--primary);text-transform:uppercase;margin-bottom:10px;
}
.section-head h2{font-size:24px;display:flex;align-items:center;gap:12px}
.section-head h2::before{content:"";width:4px;height:24px;border-radius:2px;background:var(--secondary);flex:0 0 auto}
.section-head p{margin-top:12px;color:var(--text-dim);font-size:15px}
@media (min-width:768px){ .section{padding:72px 0} .section-head h2{font-size:34px} .section-head h2::before{height:32px} }

/* ---------- waterfall cards ---------- */
.waterfall{column-count:1;column-gap:20px}
.wf-card{
  break-inside:avoid;-webkit-column-break-inside:avoid;page-break-inside:avoid;
  margin:0 0 20px;background:var(--panel);border:1px solid var(--line);
  border-radius:var(--radius-card);overflow:hidden;box-shadow:var(--shadow-card);
  transition:transform .18s ease,box-shadow .18s ease,border-color .18s ease;
}
.wf-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-hover),0 0 0 1px var(--primary)}
.wf-thumb{position:relative;height:150px;overflow:hidden;background:#120E1B}
.wf-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .4s ease}
.wf-card:hover .wf-thumb img{transform:scale(1.05)}
.badge{
  display:inline-flex;align-items:center;gap:6px;
  padding:4px 10px;border-radius:6px;font-size:12px;font-weight:700;letter-spacing:.02em;
}
.badge-purple{background:rgba(122,77,255,.24);color:#C9B6FF;border:1px solid rgba(122,77,255,.5)}
.badge-magenta{background:rgba(255,61,139,.2);color:#FF9CC2;border:1px solid rgba(255,61,139,.45)}
.badge-lime{background:rgba(200,255,61,.18);color:var(--primary);border:1px solid rgba(200,255,61,.45)}
.wf-thumb .badge{position:absolute;left:12px;top:12px;background:rgba(13,10,18,.82);backdrop-filter:blur(6px);border:1px solid var(--line-strong);color:var(--text)}
.wf-body{padding:18px}
.wf-body h3{font-size:18px;margin-bottom:8px}
.wf-body p{font-size:14.5px;color:var(--text-dim);margin:0}
.wf-meta{margin-top:14px;padding-top:12px;border-top:1px dashed var(--line);display:flex;align-items:center;justify-content:space-between;font-size:13px;color:var(--text-dim)}
.wf-meta i{color:var(--primary);margin-right:6px}
@media (min-width:600px){ .waterfall{column-count:2} }
@media (min-width:1024px){ .waterfall{column-count:3} }
@media (min-width:1200px){ .waterfall{column-count:4} }

/* ---------- steps ---------- */
.steps{display:grid;gap:20px;counter-reset:step}
.step{
  position:relative;background:var(--panel);border:1px solid var(--line);
  border-radius:var(--radius-card);padding:24px 22px 22px;box-shadow:var(--shadow-card);
  transition:transform .18s ease,box-shadow .18s ease;
}
.step:hover{transform:translateY(-2px);box-shadow:var(--shadow-hover),0 0 0 1px var(--primary)}
.step .idx{font-family:var(--font-num);font-size:38px;font-weight:700;color:var(--secondary);line-height:1;display:block;margin-bottom:12px}
.step h3{font-size:18px;margin-bottom:8px}
.step p{font-size:14.5px;color:var(--text-dim);margin:0}
@media (min-width:768px){ .steps{grid-template-columns:repeat(4,1fr)} }
@media (min-width:1024px){ .steps{grid-template-columns:repeat(4,1fr);gap:24px} }

/* ---------- stats band ---------- */
.stat-grid{display:grid;gap:18px}
.stat{
  background:linear-gradient(160deg,rgba(122,77,255,.16),rgba(26,20,40,.9));
  border:1px solid var(--line);border-radius:var(--radius-card);padding:24px 22px;
  box-shadow:var(--shadow-card);
}
.stat .num{font-family:var(--font-num);font-size:42px;font-weight:700;color:var(--primary);line-height:1}
.stat .num small{font-size:18px;margin-left:4px;color:var(--text-dim);font-family:var(--font-cn);font-weight:600}
.stat .lab{margin-top:10px;font-size:15px;font-weight:700}
.stat .txt{margin-top:6px;font-size:13.5px;color:var(--text-dim)}
@media (min-width:600px){ .stat-grid{grid-template-columns:repeat(2,1fr)} }
@media (min-width:1024px){ .stat-grid{grid-template-columns:repeat(4,1fr)} }

/* ---------- checklist ---------- */
.check-list{display:grid;gap:14px}
.check-list li{
  display:flex;gap:12px;align-items:flex-start;
  background:var(--panel);border:1px solid var(--line);border-radius:14px;padding:16px 18px;font-size:15px;color:var(--text-dim);
}
.check-list li::before{
  content:"";flex:0 0 auto;width:10px;height:10px;margin-top:9px;border-radius:3px;background:var(--primary);
}
.check-list li strong{color:var(--text);font-weight:700;margin-right:6px}
@media (min-width:768px){ .check-list{grid-template-columns:repeat(2,1fr)} }

/* ---------- FAQ ---------- */
.faq{border:1px solid var(--line);border-radius:var(--radius-card);overflow:hidden;background:var(--panel);box-shadow:var(--shadow-card)}
.faq-item{border-bottom:1px solid var(--line);position:relative}
.faq-item:last-child{border-bottom:0}
.faq-item::before{content:"";position:absolute;left:0;top:0;bottom:0;width:3px;background:var(--primary);transform:scaleY(0);transform-origin:top;transition:transform .2s ease}
.faq-item.is-open::before{transform:scaleY(1)}
.faq-q{
  width:100%;background:transparent;border:0;color:var(--text);text-align:left;
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:18px 20px;font-size:16px;font-weight:600;line-height:1.5;
}
.faq-q:hover{color:var(--primary)}
.faq-q .ic{
  flex:0 0 auto;width:24px;height:24px;border-radius:50%;border:1px solid var(--line-strong);
  display:grid;place-items:center;font-size:12px;color:var(--text-dim);transition:transform .2s ease,color .2s ease,border-color .2s ease;
}
.faq-item.is-open .faq-q .ic{transform:rotate(180deg);color:var(--primary-ink);background:var(--primary);border-color:var(--primary)}
.faq-a{display:none;padding:0 20px 20px;font-size:14.8px;color:var(--text-dim)}
.faq-item.is-open{background:var(--bg-soft)}
.faq-item.is-open .faq-a{display:block}

/* ---------- CTA ---------- */
.cta-band{
  position:relative;overflow:hidden;
  background:linear-gradient(115deg,rgba(122,77,255,.9),rgba(255,61,139,.75) 55%,rgba(200,255,61,.85));
  clip-path:polygon(0 22px,100% 0,100% 100%,0 calc(100% - 22px));
  padding:52px 0;
}
.cta-band::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:radial-gradient(rgba(0,0,0,.32) 1px,transparent 1px);
  background-size:14px 14px;opacity:.5;
}
.cta-inner{position:relative;z-index:2;display:grid;gap:24px;align-items:center}
.cta-inner h2{font-size:24px;color:#0D0A12}
.cta-inner p{color:rgba(13,10,18,.78);font-size:15px;margin:10px 0 0;max-width:620px}
.cta-inner .btn-primary{background:#0D0A12;color:var(--primary);box-shadow:0 10px 24px rgba(0,0,0,.35)}
.cta-inner .btn-primary:hover{color:var(--primary);box-shadow:0 0 22px rgba(13,10,18,.5)}
@media (min-width:768px){
  .cta-band{padding:64px 0}
  .cta-inner{grid-template-columns:1.6fr auto;gap:36px}
  .cta-inner h2{font-size:32px}
}

/* ---------- footer ---------- */
.site-footer{background:var(--bg-soft);border-top:1px solid var(--line);padding:52px 0 0;margin-top:0}
.foot-grid{display:grid;gap:32px}
.foot-brand .logo{margin-bottom:14px}
.foot-brand p{font-size:14px;color:var(--text-dim);max-width:330px;margin:0}
.foot-col h4{font-size:15px;font-weight:700;margin-bottom:16px;position:relative;padding-bottom:10px}
.foot-col h4::after{content:"";position:absolute;left:0;bottom:0;width:26px;height:3px;border-radius:2px;background:var(--primary)}
.foot-col ul li{margin-bottom:10px}
.foot-col ul a{font-size:14px;color:var(--text-dim)}
.foot-col ul a:hover{color:var(--primary)}
.foot-note{font-size:13.5px;color:var(--text-dim);line-height:1.9}
.foot-bar{
  margin-top:44px;border-top:1px solid var(--line);padding:18px 0 96px;
  display:flex;flex-wrap:wrap;gap:12px;align-items:center;justify-content:space-between;
  font-size:13px;color:var(--text-dim);
}
.foot-bar .badge-line{display:inline-flex;align-items:center;gap:8px}
@media (min-width:768px){
  .foot-grid{grid-template-columns:1.4fr 1fr 1fr 1.2fr}
}
@media (min-width:1024px){
  .foot-bar{padding-bottom:22px}
  body{padding-bottom:0}
}

/* ---------- mobile bottom tab ---------- */
.tabbar{
  position:fixed;left:0;right:0;bottom:0;z-index:70;
  display:grid;grid-template-columns:repeat(5,1fr);
  background:var(--panel);border-top:1px solid var(--line);
  padding-bottom:env(safe-area-inset-bottom);
}
.tabbar a{
  position:relative;height:60px;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:4px;
  font-size:10px;color:var(--text-dim);
}
.tabbar a i{font-size:18px}
.tabbar a.is-active{color:var(--primary)}
.tabbar a.is-active::before{content:"";position:absolute;top:0;left:22%;right:22%;height:3px;border-radius:0 0 3px 3px;background:var(--primary)}
@media (min-width:1024px){ .tabbar{display:none} }
body{padding-bottom:76px}
@media (min-width:1024px){ body{padding-bottom:0} }

/* ---------- motion ---------- */
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation:none !important;transition:none !important;scroll-behavior:auto !important}
  .wf-card:hover,.step:hover,.btn:hover{transform:none}
}

/* roulang page: category5 */
:root{
  --bg:#0D0A12;
  --bg-soft:#141020;
  --panel:#1A1428;
  --line:rgba(255,255,255,.08);
  --text:#F2F0F7;
  --text-dim:#A79FB8;
  --primary:#C8FF3D;
  --primary-ink:#0D0A12;
  --secondary:#7A4DFF;
  --accent:#FF3D8B;
  --warn:#FFB020;
  --radius-card:18px;
  --radius-input:12px;
  --shadow-card:0 8px 24px rgba(0,0,0,.45);
  --shadow-hover:0 14px 34px rgba(0,0,0,.55);
  --container:1200px;
  --font-cn:"PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,sans-serif;
  --font-num:"Oswald","Barlow Condensed",sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  background-color:var(--bg);
  background-image:radial-gradient(rgba(255,255,255,.06) 1px,transparent 1px);
  background-size:22px 22px;
  color:var(--text);
  font-family:var(--font-cn);
  font-size:17px;
  line-height:1.8;
  letter-spacing:0;
  overflow-x:hidden;
}
img{max-width:100%;display:block;height:auto}
a{color:inherit;text-decoration:none}
a:hover{color:var(--primary)}
ul,ol{margin:0;padding:0;list-style:none}
p{margin:0 0 1.1em}
h1,h2,h3,h4{margin:0;font-weight:900;letter-spacing:-.02em;line-height:1.28}
button,input{font:inherit;color:inherit}
button{cursor:pointer;background:none;border:0}
:focus-visible{outline:2px solid var(--primary);outline-offset:3px;border-radius:6px}

.container{
  width:100%;
  max-width:var(--container);
  margin:0 auto;
  padding:0 20px;
}
@media (min-width:1024px){
  .container{padding:0 28px}
}

/* ---------- Header ---------- */
.site-header{
  position:sticky;
  top:0;
  z-index:90;
  background:rgba(13,10,18,.88);
  -webkit-backdrop-filter:blur(12px);
  backdrop-filter:blur(12px);
  border-bottom:1px solid var(--line);
}
.header-inner{
  display:flex;
  align-items:center;
  gap:18px;
  min-height:64px;
}
.brand{
  display:inline-flex;
  align-items:center;
  gap:10px;
  font-size:18px;
  font-weight:900;
  color:var(--text);
  white-space:nowrap;
  letter-spacing:-.01em;
}
.brand:hover{color:var(--primary)}
.brand-mark{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  width:30px;height:30px;
  border:1px solid var(--primary);
  border-radius:9px;
  color:var(--primary);
  font-family:var(--font-num);
  font-size:15px;
  font-weight:700;
  background:rgba(200,255,61,.08);
}
.nav-links{
  display:none;
  align-items:center;
  gap:4px;
  margin-left:auto;
  flex-wrap:wrap;
}
.nav-links a{
  position:relative;
  padding:8px 11px;
  font-size:15px;
  font-weight:500;
  color:var(--text-dim);
  border-radius:8px;
  transition:color .18s ease,background .18s ease;
  white-space:nowrap;
}
.nav-links a:hover{color:var(--text);background:rgba(255,255,255,.05)}
.nav-links a.is-active{
  color:var(--text);
  background:rgba(200,255,61,.08);
}
.nav-links a.is-active::after{
  content:"";
  position:absolute;
  left:11px;right:11px;bottom:2px;
  height:2px;
  background:var(--primary);
  border-radius:2px;
}
.header-cta{display:none}
.nav-toggle{
  margin-left:auto;
  width:42px;height:42px;
  border:1px solid var(--line);
  border-radius:12px;
  color:var(--text);
  display:inline-flex;
  align-items:center;
  justify-content:center;
  transition:border-color .18s ease,color .18s ease;
}
.nav-toggle:hover{border-color:var(--primary);color:var(--primary)}
.mobile-drawer{
  display:none;
  border-top:1px solid var(--line);
  background:var(--bg-soft);
}
.mobile-drawer.is-open{display:block}
.mobile-drawer .container{padding-top:10px;padding-bottom:14px}
.mobile-drawer a{
  display:block;
  padding:12px 4px;
  font-size:16px;
  color:var(--text-dim);
  border-bottom:1px dashed rgba(255,255,255,.07);
}
.mobile-drawer a:last-child{border-bottom:0}
.mobile-drawer a.is-active{color:var(--primary);font-weight:700}

@media (min-width:1024px){
  .nav-links{display:flex;flex-wrap:nowrap}
  .header-cta{display:inline-flex}
  .nav-toggle{display:none}
  .mobile-drawer{display:none !important}
}

/* ---------- Buttons ---------- */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  height:46px;
  padding:0 22px;
  border-radius:999px;
  font-size:15px;
  font-weight:700;
  letter-spacing:.02em;
  border:1px solid transparent;
  transition:transform .18s ease,box-shadow .18s ease,background .18s ease,border-color .18s ease,color .18s ease;
  white-space:nowrap;
}
.btn-primary{
  background:var(--primary);
  color:var(--primary-ink);
}
.btn-primary:hover{
  color:var(--primary-ink);
  transform:translateY(-2px);
  box-shadow:0 0 18px rgba(200,255,61,.35);
}
.btn-ghost{
  border-color:rgba(255,255,255,.22);
  color:var(--text);
  background:rgba(255,255,255,.02);
}
.btn-ghost:hover{
  border-color:var(--primary);
  color:var(--primary);
  transform:translateY(-2px);
}
.btn-lg{height:52px;padding:0 28px;font-size:16px}

/* ---------- Breadcrumb ---------- */
.crumb-bar{
  border-bottom:1px solid var(--line);
  background:var(--bg-soft);
}
.crumb{
  display:flex;
  align-items:center;
  gap:8px;
  font-size:13px;
  color:var(--text-dim);
  padding:12px 0;
  overflow-x:auto;
  white-space:nowrap;
  scrollbar-width:none;
}
.crumb::-webkit-scrollbar{display:none}
.crumb a{color:var(--text-dim)}
.crumb a:hover{color:var(--primary)}
.crumb .sep{color:rgba(255,255,255,.25)}
.crumb .now{color:var(--primary);font-weight:700}

/* ---------- Hero ---------- */
.hero{
  position:relative;
  overflow:hidden;
  border-bottom:1px solid var(--line);
  background:
    linear-gradient(100deg,rgba(13,10,18,.96) 0%,rgba(13,10,18,.82) 48%,rgba(13,10,18,.55) 100%),
    url('/assets/images/backpic/back-3.webp') center/cover no-repeat;
}
.hero::after{
  content:"";
  position:absolute;
  right:-60px;top:-40px;
  width:320px;height:320px;
  background:radial-gradient(circle,rgba(122,77,255,.38),transparent 65%);
  pointer-events:none;
}
.hero-inner{
  position:relative;
  z-index:2;
  display:grid;
  gap:26px;
  padding:44px 0 52px;
  clip-path:none;
}
@media (min-width:1024px){
  .hero-inner{
    grid-template-columns:1.15fr .85fr;
    align-items:center;
    min-height:520px;
    padding:56px 0 62px;
  }
}
.hero-tag{
  display:inline-flex;
  align-items:center;
  gap:8px;
  padding:6px 14px;
  border-radius:6px;
  background:rgba(122,77,255,.18);
  border:1px solid rgba(122,77,255,.45);
  color:#D9CCFF;
  font-size:13px;
  font-weight:700;
  letter-spacing:.04em;
}
.hero h1{
  font-size:32px;
  margin:16px 0 12px;
}
@media (min-width:1024px){
  .hero h1{font-size:56px;line-height:1.12}
}
.hero h1 em{
  font-style:normal;
  color:var(--primary);
}
.hero-sub{
  color:var(--text-dim);
  font-size:16px;
  max-width:560px;
  margin-bottom:24px;
}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px}
.hero-facts{
  display:grid;
  gap:12px;
  grid-template-columns:repeat(2,minmax(0,1fr));
}
.hero-fact{
  background:linear-gradient(160deg,rgba(26,20,40,.95),rgba(20,16,32,.85));
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  padding:16px;
  box-shadow:var(--shadow-card);
}
.hero-fact b{
  display:block;
  font-family:var(--font-num);
  font-size:30px;
  line-height:1.1;
  color:var(--primary);
  letter-spacing:.01em;
}
.hero-fact span{
  display:block;
  margin-top:6px;
  font-size:13px;
  color:var(--text-dim);
}

/* ---------- Chip nav ---------- */
.chip-bar{
  position:sticky;
  top:64px;
  z-index:60;
  background:rgba(20,16,32,.94);
  -webkit-backdrop-filter:blur(10px);
  backdrop-filter:blur(10px);
  border-bottom:1px solid var(--line);
}
.chip-scroll{
  display:flex;
  gap:10px;
  overflow-x:auto;
  padding:12px 0;
  scrollbar-width:none;
}
.chip-scroll::-webkit-scrollbar{display:none}
.chip{
  flex:0 0 auto;
  padding:7px 15px;
  border-radius:999px;
  border:1px solid var(--line);
  background:rgba(255,255,255,.03);
  color:var(--text-dim);
  font-size:14px;
  transition:all .18s ease;
}
.chip:hover{color:var(--text);border-color:rgba(200,255,61,.45)}
.chip.is-current{
  background:var(--primary);
  border-color:var(--primary);
  color:var(--primary-ink);
  font-weight:700;
}

/* ---------- Sections ---------- */
main{padding-bottom:8px}
.section{padding:56px 0}
.section.alt{
  background:linear-gradient(180deg,rgba(20,16,32,.92),rgba(13,10,18,.6));
  border-top:1px solid var(--line);
  border-bottom:1px solid var(--line);
}
.section-head{
  max-width:760px;
  margin-bottom:28px;
}
.eyebrow{
  display:inline-block;
  font-size:13px;
  font-weight:700;
  letter-spacing:.12em;
  color:var(--secondary);
  text-transform:uppercase;
  margin-bottom:8px;
}
.section-head h2{
  font-size:24px;
  display:flex;
  align-items:flex-start;
  gap:12px;
}
.section-head h2::before{
  content:"";
  flex:0 0 4px;
  width:4px;height:24px;
  margin-top:5px;
  border-radius:2px;
  background:var(--secondary);
}
@media (min-width:1024px){
  .section-head h2{font-size:34px}
  .section-head h2::before{height:32px;margin-top:6px}
}
.section-head p{
  margin-top:12px;
  color:var(--text-dim);
  font-size:16px;
}

/* ---------- Stats ---------- */
.stats{
  display:grid;
  gap:16px;
  grid-template-columns:repeat(2,minmax(0,1fr));
}
@media (min-width:768px){
  .stats{grid-template-columns:repeat(4,minmax(0,1fr))}
}
.stat-card{
  position:relative;
  background:var(--panel);
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  padding:20px 18px 18px;
  box-shadow:var(--shadow-card);
  overflow:hidden;
  transition:transform .18s ease,box-shadow .18s ease,border-color .18s ease;
}
.stat-card:hover{
  transform:translateY(-2px);
  box-shadow:var(--shadow-hover);
  border-color:rgba(200,255,61,.5);
}
.stat-card::before{
  content:"";
  position:absolute;
  inset:0 auto 0 0;
  width:3px;
  background:linear-gradient(180deg,var(--primary),var(--secondary));
}
.stat-num{
  font-family:var(--font-num);
  font-size:42px;
  line-height:1;
  color:var(--primary);
  letter-spacing:.01em;
}
.stat-num small{font-size:18px;margin-left:2px;color:var(--warn)}
.stat-label{
  margin-top:10px;
  font-size:15px;
  font-weight:700;
}
.stat-desc{
  margin-top:6px;
  font-size:13px;
  color:var(--text-dim);
  line-height:1.6;
}

/* ---------- Long form ---------- */
.article-grid{
  display:grid;
  gap:28px;
}
@media (min-width:1024px){
  .article-grid{grid-template-columns:minmax(0,1fr) 320px;align-items:start}
}
.prose h3{
  font-size:22px;
  margin:28px 0 10px;
}
.prose h3:first-child{margin-top:0}
.prose p{color:#DCD7E8}
.prose figure{
  margin:22px 0;
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  overflow:hidden;
  background:var(--panel);
  box-shadow:var(--shadow-card);
}
.prose figure img{
  width:100%;
  aspect-ratio:16/9;
  object-fit:cover;
}
.prose figcaption{
  padding:10px 14px;
  font-size:13px;
  color:var(--text-dim);
  border-top:1px solid var(--line);
}
.note-strip{
  display:flex;
  gap:12px;
  padding:14px 16px;
  border-radius:12px;
  background:rgba(255,61,139,.08);
  border:1px solid rgba(255,61,139,.32);
  font-size:14px;
  color:#FFD3E5;
  margin:20px 0;
}
.note-strip i{color:var(--accent);margin-top:4px}

/* ---------- Aside list ---------- */
.aside-card{
  background:var(--panel);
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  padding:20px;
  box-shadow:var(--shadow-card);
  margin-bottom:18px;
}
.aside-card h3{
  font-size:18px;
  margin-bottom:14px;
  padding-left:11px;
  position:relative;
}
.aside-card h3::before{
  content:"";
  position:absolute;
  left:0;top:4px;
  width:4px;height:18px;
  border-radius:2px;
  background:var(--primary);
}
.check-list li{
  display:flex;
  gap:10px;
  padding:9px 0;
  border-bottom:1px dashed rgba(255,255,255,.08);
  font-size:14px;
  color:var(--text-dim);
  line-height:1.65;
}
.check-list li:last-child{border-bottom:0}
.check-list i{
  color:var(--primary);
  font-size:12px;
  margin-top:6px;
}
.timeline li{
  position:relative;
  padding:0 0 18px 22px;
  border-left:1px solid rgba(255,255,255,.12);
}
.timeline li:last-child{padding-bottom:0;border-left-color:transparent}
.timeline li::before{
  content:"";
  position:absolute;
  left:-5px;top:7px;
  width:9px;height:9px;
  border-radius:50%;
  background:var(--bg-soft);
  border:2px solid var(--primary);
}
.timeline b{display:block;font-size:15px}
.timeline span{font-size:13px;color:var(--text-dim)}

/* ---------- Change cards ---------- */
.change-grid{
  display:grid;
  gap:18px;
  grid-template-columns:1fr;
}
@media (min-width:768px){.change-grid{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media (min-width:1024px){.change-grid{grid-template-columns:repeat(3,minmax(0,1fr))}}
.change-card{
  background:var(--panel);
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  overflow:hidden;
  box-shadow:var(--shadow-card);
  transition:transform .18s ease,box-shadow .18s ease,border-color .18s ease;
  display:flex;
  flex-direction:column;
}
.change-card:hover{
  transform:translateY(-2px);
  box-shadow:var(--shadow-hover);
  border-color:rgba(200,255,61,.5);
}
.change-card img{
  width:100%;
  aspect-ratio:16/9;
  object-fit:cover;
}
.change-body{padding:18px}
.change-body h3{font-size:18px;margin-bottom:8px}
.change-body p{font-size:14px;color:var(--text-dim);margin-bottom:12px}
.badge{
  display:inline-block;
  padding:3px 10px;
  border-radius:6px;
  font-size:12px;
  font-weight:700;
  letter-spacing:.03em;
}
.badge-purple{background:rgba(122,77,255,.2);color:#CDBBFF;border:1px solid rgba(122,77,255,.45)}
.badge-pink{background:rgba(255,61,139,.16);color:#FFB6D3;border:1px solid rgba(255,61,139,.45)}
.badge-lime{background:rgba(200,255,61,.14);color:var(--primary);border:1px solid rgba(200,255,61,.42)}

/* ---------- FAQ ---------- */
.faq-wrap{max-width:880px}
.faq-item{
  border:1px solid var(--line);
  border-radius:14px;
  background:var(--panel);
  margin-bottom:12px;
  overflow:hidden;
  transition:border-color .18s ease,background .18s ease;
}
.faq-item.is-open{
  background:var(--bg-soft);
  border-color:rgba(200,255,61,.4);
}
.faq-q{
  width:100%;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  text-align:left;
  padding:16px 18px;
  font-size:16px;
  font-weight:600;
  color:var(--text);
  min-height:56px;
}
.faq-q:hover{color:var(--primary)}
.faq-icon{
  flex:0 0 auto;
  width:26px;height:26px;
  display:inline-flex;
  align-items:center;
  justify-content:center;
  border-radius:50%;
  border:1px solid var(--line);
  color:var(--primary);
  font-size:12px;
  transition:transform .24s ease,border-color .18s ease;
}
.faq-item.is-open .faq-icon{transform:rotate(180deg);border-color:var(--primary)}
.faq-a{
  display:none;
  padding:0 18px 18px;
  font-size:15px;
  color:var(--text-dim);
  line-height:1.8;
  border-left:3px solid var(--primary);
  margin-left:18px;
}
.faq-item.is-open .faq-a{display:block}

/* ---------- CTA ---------- */
.cta-band{
  position:relative;
  overflow:hidden;
  border-top:1px solid var(--line);
  border-bottom:1px solid var(--line);
  background:
    linear-gradient(120deg,rgba(122,77,255,.34),rgba(13,10,18,.9) 62%),
    url('/assets/images/backpic/back-1.webp') center/cover no-repeat;
  clip-path:polygon(0 0,100% 3%,100% 100%,0 97%);
}
.cta-inner{
  display:grid;
  gap:20px;
  padding:62px 0;
  align-items:center;
}
@media (min-width:1024px){
  .cta-inner{grid-template-columns:1.4fr auto;padding:72px 0}
}
.cta-inner h2{font-size:26px;margin-bottom:10px}
@media (min-width:1024px){.cta-inner h2{font-size:34px}}
.cta-inner p{color:#D6D0E4;margin:0;max-width:640px}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px}

/* ---------- Footer ---------- */
.site-footer{
  background:var(--bg-soft);
  border-top:1px solid var(--line);
  padding:46px 0 0;
  margin-bottom:76px;
}
@media (min-width:768px){.site-footer{margin-bottom:0}}
.footer-grid{
  display:grid;
  gap:26px;
  grid-template-columns:1fr;
  padding-bottom:32px;
}
@media (min-width:768px){.footer-grid{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media (min-width:1024px){.footer-grid{grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:32px}}
.footer-col h4{
  font-size:15px;
  font-weight:700;
  margin-bottom:14px;
  padding-bottom:8px;
  position:relative;
}
.footer-col h4::after{
  content:"";
  position:absolute;
  left:0;bottom:0;
  width:26px;height:3px;
  border-radius:2px;
  background:var(--primary);
}
.footer-col p,
.footer-col a{
  font-size:14px;
  color:var(--text-dim);
  line-height:1.9;
}
.footer-col ul li{margin-bottom:8px}
.footer-col a:hover{color:var(--primary)}
.footer-brand{
  display:inline-flex;
  align-items:center;
  gap:10px;
  font-size:18px;
  font-weight:900;
  color:var(--text);
  margin-bottom:12px;
}
.footer-note{
  display:flex;
  align-items:center;
  gap:8px;
  margin-top:14px;
  font-size:13px;
  color:var(--text-dim);
  border:1px dashed rgba(255,255,255,.12);
  border-radius:10px;
  padding:10px 12px;
}
.footer-note i{color:var(--secondary)}
.footer-bottom{
  border-top:1px solid var(--line);
  padding:16px 0;
  display:flex;
  flex-wrap:wrap;
  gap:10px 18px;
  justify-content:space-between;
  align-items:center;
  font-size:13px;
  color:var(--text-dim);
}
.footer-bottom span i{color:var(--primary);margin-right:6px}

/* ---------- Mobile tab bar ---------- */
.tab-bar{
  position:fixed;
  left:0;right:0;bottom:0;
  z-index:95;
  display:grid;
  grid-template-columns:repeat(5,1fr);
  height:60px;
  padding-bottom:env(safe-area-inset-bottom);
  background:var(--panel);
  border-top:1px solid var(--line);
}
.tab-bar a{
  position:relative;
  display:flex;
  flex-direction:column;
  align-items:center;
  justify-content:center;
  gap:3px;
  font-size:10px;
  color:var(--text-dim);
  transition:color .18s ease;
}
.tab-bar a i{font-size:19px}
.tab-bar a.is-active{color:var(--primary)}
.tab-bar a.is-active::before{
  content:"";
  position:absolute;
  top:0;left:50%;
  transform:translateX(-50%);
  width:26px;height:3px;
  border-radius:0 0 3px 3px;
  background:var(--primary);
}
@media (min-width:768px){
  .tab-bar{display:none}
}
body{padding-bottom:0}

@media (prefers-reduced-motion:reduce){
  *{animation:none !important;transition:none !important;scroll-behavior:auto !important}
}