/* roulang page: index */
:root{
  --bg:#0F0D1A;
  --bg-alt:#151226;
  --bg-deep:#0B0A14;
  --surface:#1B1730;
  --surface-2:#221C3B;
  --primary:#2BE4A6;
  --primary-rgb:43,228,166;
  --accent:#FF7A45;
  --purple:#B07BFF;
  --text:#F4F2FB;
  --text-2:#A79FC4;
  --text-3:#6F6890;
  --line:rgba(255,255,255,.08);
  --line-strong:rgba(43,228,166,.30);
  --light-bg:#F7F6FB;
  --light-text:#1B1730;
  --light-line:rgba(27,23,48,.12);
  --radius:16px;
  --radius-lg:20px;
  --radius-btn:10px;
  --shadow:0 8px 24px rgba(0,0,0,.35);
  --shadow-hover:0 16px 36px rgba(0,0,0,.46);
  --glow:0 0 24px rgba(43,228,166,.18);
  --glow-purple:0 0 24px rgba(176,123,255,.22);
  --section:72px;
  --bs-primary:#2BE4A6;
  --bs-primary-rgb:43,228,166;
  --bs-body-bg:#0F0D1A;
  --bs-body-color:#F4F2FB;
  --bs-border-radius:16px;
  --bs-border-color:rgba(255,255,255,.08);
  --bs-link-color:#2BE4A6;
  --bs-link-hover-color:#FF7A45;
  --bs-font-sans-serif:-apple-system,"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",Inter,sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:-apple-system,"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",Inter,sans-serif;
  font-size:16px;
  line-height:1.75;
  letter-spacing:.01em;
  color:var(--text);
  background:var(--bg);
  background-image:radial-gradient(760px 420px at 92% -6%,rgba(43,228,166,.10),transparent 62%);
  background-repeat:no-repeat;
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4{margin:0;font-weight:700;line-height:1.28;letter-spacing:.005em}
p{margin:0}
a{color:var(--primary);text-decoration:none;transition:color .2s ease}
a:hover{color:var(--accent)}
img{max-width:100%;display:block}
ul,ol{margin:0;padding:0;list-style:none}
button{font-family:inherit}
strong{font-weight:700}
.time-num,time,.stat-num,.price{font-variant-numeric:tabular-nums}
:focus-visible{outline:2px solid var(--primary);outline-offset:2px}
.wrap{width:100%;max-width:1200px;margin:0 auto;padding:0 20px}
.section{padding:var(--section) 0}
.section-alt{background:var(--bg-alt)}
.section-deep{background:var(--bg-deep)}
.section-title{font-size:clamp(24px,2.6vw,32px)}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:16px;margin-bottom:32px}
.section-sub{margin-top:10px;color:var(--text-2);font-size:15px;max-width:660px}
.link-more{font-size:15px;font-weight:600;white-space:nowrap}
.link-more i{font-size:12px;margin-left:4px}

/* 顶部导航 */
.site-header{position:sticky;top:0;z-index:1030;background:var(--bg-deep);border-bottom:1px solid var(--line)}
.site-header::before{content:"";display:block;height:6px;background:linear-gradient(90deg,var(--primary),var(--purple))}
.header-bar{display:flex;align-items:center;gap:16px;padding-top:14px;padding-bottom:14px}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto;color:var(--text)}
.brand:hover{color:var(--text)}
.brand-mark{width:38px;height:38px;border-radius:12px;background:var(--surface-2);display:flex;align-items:center;justify-content:center;border:1px solid var(--line)}
.brand-text{display:flex;flex-direction:column;line-height:1.15}
.brand-text strong{font-size:16px;letter-spacing:.02em}
.brand-text em{font-style:normal;font-size:12px;color:var(--text-3);letter-spacing:.16em}
.nav-panel{
  flex:1 1 auto;display:flex;align-items:center;justify-content:space-between;gap:12px;
  background:var(--surface);border:1px solid var(--line);border-radius:18px;padding:8px;
}
.nav-items{display:flex;align-items:center;gap:4px;flex-wrap:wrap}
.nav-card{
  position:relative;display:flex;align-items:center;gap:8px;height:40px;padding:0 12px;
  border-radius:12px;color:var(--text-2);font-size:14px;transition:background .2s ease,color .2s ease;
}
.nav-card::before{content:"";position:absolute;left:0;top:9px;bottom:9px;width:2px;border-radius:2px;background:transparent}
.nav-card i{font-size:14px;width:18px;text-align:center}
.nav-card:hover{background:rgba(var(--primary-rgb),.10);color:var(--primary)}
.nav-card.is-active{background:rgba(var(--primary-rgb),.12);color:var(--primary);font-weight:600}
.nav-card.is-active::before{background:var(--primary)}
.nav-cta{flex:0 0 auto}
.nav-toggle{
  display:none;align-items:center;justify-content:center;width:44px;height:44px;border-radius:12px;
  background:var(--surface);border:1px solid var(--line);color:var(--text);cursor:pointer;font-size:16px;
}
.nav-toggle:hover{background:var(--surface-2);color:var(--primary)}

/* 按钮 */
.btn-neon,.btn-ghost,.btn-dark,.btn-outline-dark{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:44px;padding:0 20px;border-radius:var(--radius-btn);
  font-size:15px;font-weight:600;cursor:pointer;border:1px solid transparent;
  transition:transform .2s ease,background .2s ease,color .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.btn-neon{background:var(--primary);color:#0B0A14}
.btn-neon:hover{background:#43edb5;color:#0B0A14;transform:translateY(-1px);box-shadow:var(--glow)}
.btn-ghost{background:transparent;border-color:var(--primary);color:var(--primary)}
.btn-ghost:hover{background:rgba(var(--primary-rgb),.10);color:var(--primary);transform:translateY(-1px)}
.btn-dark{background:var(--surface);color:var(--primary)}
.btn-dark:hover{background:#241d3f;color:var(--primary);transform:translateY(-1px);box-shadow:var(--glow)}
.btn-outline-dark{background:transparent;border-color:rgba(27,23,48,.28);color:var(--light-text)}
.btn-outline-dark:hover{background:rgba(27,23,48,.06);color:var(--light-text);transform:translateY(-1px)}

/* 徽章 */
.chip{
  display:inline-flex;align-items:center;gap:6px;height:26px;padding:0 12px;border-radius:999px;
  background:rgba(var(--primary-rgb),.12);color:var(--primary);font-size:13px;font-weight:600;line-height:1;
}
.chip-warn{background:rgba(255,122,69,.14);color:var(--accent)}
.chip-purple{background:rgba(176,123,255,.16);color:var(--purple)}

/* Hero */
.hero{padding:56px 0 48px;position:relative;overflow:hidden}
.hero-grid{display:grid;grid-template-columns:7fr 5fr;gap:40px;align-items:center}
.hero-eyebrow{display:inline-flex;align-items:center;gap:8px;margin-bottom:18px;color:var(--text-2);font-size:13px}
.hero h1{font-size:clamp(28px,4vw,46px);line-height:1.2;font-weight:700}
.hero-sub{margin-top:18px;font-size:19px;color:var(--text-2);max-width:560px}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:30px}
.hero-note{margin-top:22px;font-size:13px;color:var(--text-3);display:flex;align-items:center;gap:8px}
.hero-media{position:relative}
.hero-media img{width:100%;aspect-ratio:16/10;object-fit:cover;border-radius:var(--radius-lg);border:1px solid var(--line)}
.hero-media::after{
  content:"";position:absolute;inset:0;border-radius:var(--radius-lg);
  background:linear-gradient(200deg,rgba(11,10,20,.12),rgba(11,10,20,.78));
}
.level-float{
  position:absolute;right:16px;top:16px;z-index:2;width:210px;
  background:var(--surface);border:1px solid rgba(176,123,255,.34);border-radius:var(--radius);
  padding:16px;box-shadow:var(--shadow);
}
.level-float .lv-top{display:flex;align-items:center;justify-content:space-between;font-size:13px;color:var(--text-2)}
.level-float .lv-name{margin-top:6px;font-size:17px;font-weight:700;color:var(--purple)}
.level-float .lv-bar{height:6px;border-radius:999px;background:rgba(255,255,255,.10);margin-top:14px;overflow:hidden}
.level-float .lv-bar span{display:block;height:100%;width:72%;border-radius:999px;background:linear-gradient(90deg,var(--purple),var(--primary))}
.level-float .lv-foot{margin-top:10px;font-size:13px;color:var(--text-3)}

/* 数据条 */
.stat-strip{display:grid;grid-template-columns:repeat(4,1fr);gap:16px;margin-top:44px}
.stat-card{
  background:rgba(27,23,48,.55);border:1px solid var(--line);border-radius:var(--radius);
  padding:18px 20px;transition:border-color .2s ease,transform .2s ease;
}
.stat-card:hover{border-color:var(--line-strong);transform:translateY(-3px)}
.stat-num{font-size:24px;font-weight:700;color:var(--primary)}
.stat-label{margin-top:4px;font-size:13px;color:var(--text-3)}

/* 最新信息 */
.news-grid{display:grid;grid-template-columns:5fr 7fr;gap:24px;align-items:start}
.news-feature{
  display:block;background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-lg);
  overflow:hidden;color:var(--text);box-shadow:var(--shadow);transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.news-feature:hover{transform:translateY(-3px);box-shadow:var(--shadow-hover);border-color:var(--line-strong);color:var(--text)}
.news-feature .news-media img{width:100%;aspect-ratio:16/9;object-fit:cover}
.news-body{padding:20px}
.news-body h3{margin-top:12px;font-size:18px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.news-body p{margin-top:10px;font-size:14px;color:var(--text-2);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.news-meta{margin-top:14px;display:flex;align-items:center;gap:12px;font-size:13px;color:var(--text-3)}
.news-list{display:flex;flex-direction:column;gap:16px}
.news-item{
  display:flex;gap:16px;background:var(--surface);border:1px solid var(--line);
  border-radius:var(--radius);padding:14px;color:var(--text);
  transition:transform .2s ease,border-color .2s ease,box-shadow .2s ease;
}
.news-item:hover{transform:translateY(-3px);border-color:var(--line-strong);box-shadow:var(--shadow);color:var(--text)}
.news-item .thumb{flex:0 0 132px;border-radius:12px;overflow:hidden;background:var(--surface-2)}
.news-item .thumb img{width:100%;height:92px;object-fit:cover}
.news-item h4{margin-top:8px;font-size:16px;font-weight:700;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.news-item p{margin-top:6px;font-size:14px;color:var(--text-2);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.news-item .news-meta{margin-top:8px}
.empty-state{
  grid-column:1 / -1;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:14px;
  min-height:220px;max-height:260px;background:var(--surface);border:1px dashed var(--line);border-radius:var(--radius-lg);
  color:var(--text-2);text-align:center;padding:24px;
}
.empty-state i{font-size:26px;color:var(--text-3)}

/* 浅色反相区 */
.band-light{background:var(--light-bg);color:var(--light-text)}
.band-light .section-title{color:var(--light-text)}
.band-light .section-sub{color:#5c5575}
.band-light a{color:#1B1730}
.compare-shell{background:#FFFFFF;border-radius:var(--radius-lg);padding:8px;box-shadow:0 12px 32px rgba(27,23,48,.10)}
.compare-table{width:100%;border-collapse:collapse;font-size:15px}
.compare-table th,.compare-table td{padding:16px 14px;border-bottom:1px solid var(--light-line);text-align:left;vertical-align:middle}
.compare-table tbody tr:last-child th,.compare-table tbody tr:last-child td{border-bottom:none}
.compare-table tbody tr:hover{background:rgba(43,228,166,.06)}
.compare-table thead th{font-size:14px;color:#5c5575;font-weight:600;vertical-align:bottom}
.compare-table tbody th{font-weight:600;color:var(--light-text);width:26%}
.col-bar{display:block;width:34px;height:3px;border-radius:999px;background:#c9c5d8;margin-bottom:8px}
.col-bar.p{background:var(--primary)}
.col-bar.v{background:var(--purple)}
.col-head{position:relative;display:flex;flex-direction:column;gap:2px;padding-right:56px}
.rec-col{background:rgba(176,123,255,.08);border-left:1px solid rgba(176,123,255,.35);border-right:1px solid rgba(176,123,255,.35)}
.rec-tag{
  position:absolute;right:0;top:0;height:22px;padding:0 10px;border-radius:999px;
  background:rgba(176,123,255,.18);color:#7a45d8;font-size:12px;font-weight:700;
  display:inline-flex;align-items:center;
}
.check{color:#12a374;font-size:15px}
.na{color:#b3aec6}
.td-val{display:inline-flex;align-items:center;gap:8px;flex-wrap:wrap}

/* 等级亮点 */
.level-cards{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;align-items:stretch}
.level-card{
  position:relative;display:flex;flex-direction:column;
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-lg);
  padding:26px 22px;box-shadow:var(--shadow);transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.level-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-hover);border-color:var(--line-strong)}
.level-card.is-best{border-color:rgba(176,123,255,.55);box-shadow:var(--glow-purple);transform:translateY(-12px)}
.level-card.is-best:hover{transform:translateY(-15px)}
.level-badge{display:inline-flex;align-items:center;gap:6px;font-size:13px;color:var(--text-2)}
.level-icon{
  width:56px;height:56px;border-radius:16px;background:var(--surface-2);
  display:flex;align-items:center;justify-content:center;font-size:22px;color:var(--primary);
  border:1px solid var(--line);margin:16px 0 14px;
}
.level-card.is-best .level-icon{color:var(--purple);border-color:rgba(176,123,255,.4)}
.level-card h3{font-size:21px}
.level-list{margin-top:16px;display:flex;flex-direction:column;gap:10px;font-size:14px;color:var(--text-2)}
.level-list li{display:flex;align-items:flex-start;gap:8px}
.level-list i{color:var(--primary);font-size:13px;margin-top:5px}
.price{margin-top:auto;padding-top:20px;font-size:22px;font-weight:700}
.price small{font-size:13px;font-weight:400;color:var(--text-3);margin-left:4px}
.level-card .btn-neon,.level-card .btn-ghost{width:100%;margin-top:16px}

/* 专属内容预览 */
.preview-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.preview-card{
  display:block;background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);
  overflow:hidden;color:var(--text);transition:transform .2s ease,border-color .2s ease,box-shadow .2s ease;
}
.preview-card:hover{transform:translateY(-3px);border-color:var(--line-strong);box-shadow:var(--shadow-hover);color:var(--text)}
.preview-media{position:relative}
.preview-media img{width:100%;aspect-ratio:3/4;object-fit:cover;filter:saturate(.9)}
.preview-media .chip{position:absolute;left:12px;top:12px}
.preview-mask{
  position:absolute;inset:0;display:flex;align-items:flex-end;justify-content:flex-end;
  background:linear-gradient(180deg,rgba(11,10,20,.06),rgba(11,10,20,.72));padding:12px;
}
.lock{
  display:inline-flex;align-items:center;gap:6px;height:26px;padding:0 10px;border-radius:999px;
  background:rgba(11,10,20,.6);border:1px solid rgba(255,255,255,.18);
  color:var(--text-2);font-size:12px;font-weight:600;
}
.preview-body{padding:16px}
.preview-body h3{font-size:16px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.preview-body p{margin-top:8px;font-size:13px;color:var(--text-3)}

/* FAQ */
.faq{max-width:920px}
.faq .accordion-item{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);margin-bottom:12px;overflow:hidden}
.faq .accordion-item:hover{border-color:var(--line-strong)}
.faq .accordion-header{margin:0}
.faq .accordion-button{
  position:relative;width:100%;background:transparent;border:0;box-shadow:none;
  color:var(--text);font-size:17px;font-weight:600;line-height:1.5;
  padding:18px 20px;display:flex;align-items:center;justify-content:space-between;gap:16px;
  transition:color .2s ease,background .2s ease;
}
.faq .accordion-button:not(.collapsed){color:var(--primary)}
.faq .accordion-button:not(.collapsed)::before{content:"";position:absolute;left:0;top:0;bottom:0;width:3px;background:var(--primary)}
.faq .accordion-button:focus{box-shadow:none;outline:none}
.faq .accordion-button:focus-visible{outline:2px solid var(--primary);outline-offset:-2px}
.faq .accordion-button::after{
  content:"+";background-image:none !important;width:28px;height:28px;min-width:28px;
  border-radius:50%;background:rgba(var(--primary-rgb),.12);color:var(--primary);
  display:inline-flex;align-items:center;justify-content:center;
  font-size:18px;font-weight:500;line-height:1;margin-left:0;
  transition:background .2s ease,color .2s ease;
}
.faq .accordion-button:not(.collapsed)::after{content:"−";background:rgba(var(--primary-rgb),.22)}
.faq .accordion-body{padding:0 20px 20px;font-size:15px;color:var(--text-2);max-width:760px}

/* 底部 CTA */
.cta-band{background:var(--light-bg);color:var(--light-text);padding:var(--section) 0}
.cta-card{
  background:#FFFFFF;border-radius:var(--radius-lg);padding:34px 32px;
  display:flex;align-items:center;justify-content:space-between;gap:24px;
  box-shadow:0 14px 36px rgba(27,23,48,.12);
}
.cta-card h2{font-size:clamp(21px,2.3vw,27px);color:var(--light-text)}
.cta-card p{margin-top:10px;font-size:15px;color:#5c5575;max-width:620px}
.cta-actions{display:flex;gap:12px;flex-wrap:wrap;flex:0 0 auto}

/* 页脚 */
.site-footer{background:var(--bg-deep);border-top:1px solid var(--line);padding:56px 0 0}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:32px;padding-bottom:40px}
.footer-brand p{margin-top:14px;font-size:14px;color:var(--text-2);max-width:320px}
.footer-title{font-size:14px;font-weight:700;color:var(--text);margin-bottom:14px}
.footer-links{display:flex;flex-direction:column;gap:10px}
.footer-links a{font-size:14px;color:var(--text-2)}
.footer-links a:hover{color:var(--primary)}
.footer-contact li{font-size:14px;color:var(--text-2);display:flex;align-items:center;gap:8px;margin-bottom:10px}
.footer-contact i{color:var(--primary);font-size:13px;width:16px}
.footer-bottom{
  border-top:1px solid var(--line);padding:18px 0;display:flex;align-items:center;
  justify-content:space-between;gap:12px;flex-wrap:wrap;font-size:13px;color:var(--text-3);
}
.brand.small .brand-mark{width:32px;height:32px;border-radius:10px}

/* 响应式 */
@media (max-width:1199px){
  .hero-grid{gap:28px}
  .level-float{width:190px;padding:14px}
}
@media (max-width:991px){
  :root{--section:56px}
  .header-bar{flex-wrap:wrap;gap:12px}
  .brand{flex:1 1 auto}
  .nav-toggle{display:inline-flex}
  .nav-panel{display:none;order:3;width:100%;flex-direction:column;align-items:stretch;gap:10px}
  .nav-panel.open{display:flex}
  .nav-items{display:grid;grid-template-columns:1fr 1fr;gap:8px}
  .nav-card{
    height:auto;min-height:64px;flex-direction:column;align-items:flex-start;justify-content:center;
    gap:6px;padding:10px 12px;background:rgba(255,255,255,.03);border:1px solid var(--line);
  }
  .nav-card i{font-size:16px}
  .nav-cta{width:100%}
  .hero-grid{grid-template-columns:1fr;gap:32px}
  .hero-media{order:2}
  .stat-strip{grid-template-columns:repeat(2,1fr);gap:12px;margin-top:32px}
  .news-grid{grid-template-columns:1fr}
  .level-cards{grid-template-columns:1fr;gap:20px}
  .level-card.is-best{transform:none}
  .level-card.is-best:hover{transform:translateY(-3px)}
  .preview-grid{grid-template-columns:repeat(2,1fr);gap:18px}
  .cta-card{flex-direction:column;align-items:flex-start}
  .cta-actions{width:100%}
  .footer-grid{grid-template-columns:1fr 1fr;gap:26px}
}
@media (max-width:767px){
  .compare-shell{background:transparent;box-shadow:none;padding:0}
  .compare-table,.compare-table tbody,.compare-table tr,.compare-table th,.compare-table td{display:block;width:100%}
  .compare-table thead{display:none}
  .compare-table tr{
    background:#FFFFFF;border-radius:var(--radius);padding:6px 4px 10px;margin-bottom:16px;
    box-shadow:0 10px 26px rgba(27,23,48,.10);
  }
  .compare-table tbody th{
    padding:16px 16px 12px;font-size:17px;border-bottom:1px solid var(--light-line);
  }
  .compare-table td{
    display:flex;align-items:center;justify-content:space-between;gap:16px;
    padding:12px 16px;border-bottom:1px dashed var(--light-line);font-size:15px;
  }
  .compare-table tbody tr td:last-child{border-bottom:none}
  .compare-table td::before{content:attr(data-label);color:#6f6890;font-size:13px;flex:0 0 auto}
  .compare-table td.rec-col{background:rgba(176,123,255,.08)}
  .td-val{justify-content:flex-end;text-align:right}
  .news-item .thumb{flex:0 0 104px}
  .news-item .thumb img{height:78px}
}
@media (max-width:575px){
  :root{--section:48px}
  .wrap{padding:0 16px}
  .hero{padding:36px 0 32px}
  .hero h1{font-size:28px}
  .hero-sub{font-size:16px}
  .hero-actions{gap:10px}
  .hero-actions .btn-neon,.hero-actions .btn-ghost{width:100%}
  .level-float{position:static;width:100%;margin-top:14px}
  .news-item{flex-direction:column}
  .news-item .thumb{flex:0 0 auto}
  .news-item .thumb img{height:150px}
  .preview-grid{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr}
  .section-head{flex-direction:column;align-items:flex-start;gap:8px}
  .stat-strip{grid-template-columns:1fr}
  .faq .accordion-button{font-size:16px;padding:16px}
  .cta-card{padding:24px 20px}
  .cta-actions{flex-direction:column}
  .cta-actions .btn-neon,.cta-actions .btn-dark,.cta-actions .btn-outline-dark{width:100%}
}

/* roulang page: article */
:root{
  --neon:#2BE4A6;
  --neon-soft:rgba(43,228,166,.12);
  --neon-line:rgba(43,228,166,.30);
  --orange:#FF7A45;
  --purple:#B07BFF;
  --bg:#0F0D1A;
  --bg-alt:#151226;
  --bg-deep:#0B0A14;
  --surface:#1B1730;
  --surface-2:#221C3B;
  --text:#F4F2FB;
  --text-2:#A79FC4;
  --text-3:#6F6890;
  --line:rgba(255,255,255,.08);
  --radius-card:16px;
  --radius-panel:18px;
  --radius-btn:10px;
  --radius-pill:999px;
  --shadow:0 8px 24px rgba(0,0,0,.35);
  --shadow-hover:0 14px 34px rgba(0,0,0,.5);
  --glow:0 0 24px rgba(43,228,166,.18);
  --wrap:1200px;
  --font:-apple-system,"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",Inter,sans-serif;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:var(--font);
  font-size:16px;
  line-height:1.75;
  letter-spacing:.01em;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;}
a{color:var(--neon);text-decoration:none;transition:color .2s ease,background-color .2s ease,border-color .2s ease;}
a:hover{color:var(--orange);}
button{font-family:inherit;}
ul,ol{margin:0;}
h1,h2,h3,h4{margin:0;font-weight:700;letter-spacing:.01em;}
:focus-visible{outline:2px solid var(--neon);outline-offset:2px;border-radius:6px;}
.wrap{max-width:var(--wrap);margin:0 auto;padding:0 20px;}

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(15,13,26,.9);
  backdrop-filter:blur(12px);
  border-bottom:1px solid var(--line);
}
.site-header::before{
  content:"";display:block;height:4px;
  background:linear-gradient(90deg,var(--neon) 0%,var(--purple) 100%);
}
.header-bar{position:relative;display:flex;align-items:center;gap:18px;padding:14px 0;}
.brand{display:flex;align-items:center;gap:10px;flex-shrink:0;color:var(--text);}
.brand-mark{
  width:40px;height:40px;border-radius:12px;display:inline-flex;align-items:center;justify-content:center;
  background:var(--surface);border:1px solid var(--line);
}
.brand.small .brand-mark{width:34px;height:34px;border-radius:10px;}
.brand-text{display:flex;flex-direction:column;line-height:1.15;}
.brand-text strong{font-size:16px;font-weight:700;color:var(--text);}
.brand-text em{font-style:normal;font-size:12px;color:var(--neon);letter-spacing:.16em;}
.nav-panel{
  flex:1;display:flex;align-items:center;justify-content:space-between;gap:10px;
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-panel);
  padding:8px;box-shadow:var(--shadow);
}
.nav-items{display:flex;align-items:center;gap:4px;list-style:none;padding:0;}
.nav-card{
  position:relative;display:flex;align-items:center;gap:8px;
  padding:10px 14px;border-radius:12px;font-size:14px;color:var(--text-2);
  white-space:nowrap;transition:background-color .2s ease,color .2s ease;
}
.nav-card i{font-size:14px;color:var(--text-3);transition:color .2s ease;}
.nav-card:hover{background:rgba(43,228,166,.10);color:var(--neon);}
.nav-card:hover i{color:var(--neon);}
.nav-card.is-active{background:var(--neon-soft);color:var(--neon);font-weight:600;}
.nav-card.is-active i{color:var(--neon);}
.nav-card.is-active::before{
  content:"";position:absolute;left:0;top:50%;transform:translateY(-50%);
  width:2px;height:18px;border-radius:2px;background:var(--neon);
}
.btn-neon{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  background:var(--neon);color:#08130F;font-weight:700;font-size:14px;
  border:0;border-radius:var(--radius-btn);padding:11px 20px;
  transition:transform .2s ease,box-shadow .2s ease,background-color .2s ease;
}
.btn-neon:hover{background:#4ff0b6;color:#08130F;transform:translateY(-1px);box-shadow:var(--glow);}
.btn-ghost{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  background:transparent;color:var(--neon);font-weight:600;font-size:14px;
  border:1px solid var(--neon-line);border-radius:var(--radius-btn);padding:11px 20px;
  transition:background-color .2s ease,color .2s ease,transform .2s ease;
}
.btn-ghost:hover{background:rgba(43,228,166,.10);color:var(--neon);transform:translateY(-1px);}
.btn-dark{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  background:#1B1730;color:var(--neon);font-weight:700;font-size:14px;
  border:0;border-radius:var(--radius-btn);padding:11px 20px;
  transition:transform .2s ease,box-shadow .2s ease;
}
.btn-dark:hover{color:#4ff0b6;transform:translateY(-1px);box-shadow:0 10px 26px rgba(0,0,0,.25);}
.nav-cta{padding:10px 18px;font-size:14px;}
.nav-toggle{
  display:none;width:44px;height:44px;border-radius:12px;
  background:var(--surface);border:1px solid var(--line);color:var(--text);
  align-items:center;justify-content:center;
}
.nav-toggle:hover{color:var(--neon);border-color:var(--neon-line);}

/* ---------- badges / breadcrumb ---------- */
.pill{
  display:inline-flex;align-items:center;gap:6px;
  border-radius:var(--radius-pill);font-size:13px;line-height:1;
  padding:7px 12px;background:var(--neon-soft);color:var(--neon);font-weight:600;
}
.pill-warn{background:rgba(255,122,69,.14);color:var(--orange);}
.page-head{padding:26px 0 0;}
.crumb{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--text-3);overflow:hidden;}
.crumb a{color:var(--text-3);}
.crumb a:hover{color:var(--neon);}
.crumb .sep{color:#4A4463;}
.crumb .current{white-space:nowrap;overflow:hidden;text-overflow:ellipsis;color:var(--text-3);}
.article-head{border-bottom:1px solid var(--line);margin:18px 0 34px;padding-bottom:26px;}
.article-title{font-size:clamp(28px,3.4vw,36px);line-height:1.28;font-weight:700;margin:14px 0 16px;}
.meta-row{display:flex;flex-wrap:wrap;align-items:center;gap:14px;font-size:13px;color:var(--text-3);}
.meta-row i{color:var(--neon);margin-right:5px;}
.meta-row time{font-variant-numeric:tabular-nums;}
.meta-sep{width:1px;height:12px;background:var(--line);display:inline-block;}

/* ---------- article body ---------- */
.article-body{max-width:720px;color:var(--text);font-size:16px;line-height:1.9;}
.article-body p{margin:0 0 1.2em;}
.article-body h2{
  position:relative;font-size:clamp(22px,2.4vw,27px);font-weight:700;
  margin:40px 0 16px;padding-left:14px;line-height:1.4;
}
.article-body h2::before{
  content:"";position:absolute;left:0;top:.2em;bottom:.2em;width:4px;border-radius:2px;background:var(--neon);
}
.article-body h3{font-size:20px;font-weight:600;margin:28px 0 12px;}
.article-body h4{font-size:17px;font-weight:600;margin:22px 0 10px;color:var(--text-2);}
.article-body a{color:var(--neon);text-decoration:underline;text-underline-offset:3px;}
.article-body a:hover{color:var(--orange);}
.article-body ul,.article-body ol{padding-left:22px;margin:0 0 1.4em;}
.article-body li{margin-bottom:.55em;}
.article-body ul li::marker{color:var(--neon);}
.article-body ol li::marker{color:var(--neon);font-variant-numeric:tabular-nums;}
.article-body blockquote{
  margin:24px 0;padding:16px 20px;background:var(--bg-alt);
  border-left:3px solid var(--purple);border-radius:0 12px 12px 0;color:var(--text-2);
}
.article-body img{border-radius:12px;margin:24px auto;}
.article-body figure{margin:24px 0;}
.article-body figcaption{text-align:center;font-size:13px;color:var(--text-3);margin-top:10px;}
.article-body table{width:100%;border-collapse:collapse;background:var(--bg-alt);border-radius:12px;overflow:hidden;font-size:15px;margin:24px 0;}
.article-body th,.article-body td{padding:12px 14px;border-bottom:1px solid var(--line);text-align:left;}
.article-body th{color:var(--neon);font-weight:600;background:rgba(43,228,166,.06);}
.article-body code{background:var(--surface-2);color:var(--neon);padding:2px 6px;border-radius:6px;font-size:14px;}
.article-body pre{background:var(--bg-deep);border:1px solid var(--line);border-radius:12px;padding:16px;overflow:auto;margin:24px 0;}
.article-body pre code{background:transparent;padding:0;}
.article-body hr{border:0;border-top:1px solid var(--line);margin:34px 0;}
.article-body strong{color:#fff;}

.empty-state{
  background:var(--surface);border:1px dashed var(--line);border-radius:var(--radius-card);
  padding:52px 24px;text-align:center;max-width:720px;
}
.empty-state i{font-size:26px;color:var(--text-3);}
.empty-state h2{font-size:22px;margin:14px 0 8px;}
.empty-state p{color:var(--text-2);font-size:15px;margin:0 0 20px;}

/* ---------- tags + related ---------- */
.tag-row{display:flex;flex-wrap:wrap;gap:10px;margin:36px 0 0;}
.tag{
  display:inline-flex;align-items:center;gap:6px;padding:7px 14px;border-radius:var(--radius-pill);
  background:var(--surface);border:1px solid var(--line);color:var(--text-2);font-size:13px;
}
.tag:hover{color:var(--neon);border-color:var(--neon-line);background:rgba(43,228,166,.08);}
.divider{height:1px;background:var(--line);margin:36px 0;}
.sec-title{display:flex;align-items:center;gap:10px;font-size:22px;font-weight:700;margin:0 0 20px;}
.sec-title::before{content:"";width:4px;height:20px;border-radius:2px;background:var(--neon);}
.related-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;}
.mini-card{
  display:flex;flex-direction:column;background:var(--surface);border:1px solid var(--line);
  border-radius:var(--radius-card);overflow:hidden;box-shadow:var(--shadow);color:var(--text);
  transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.mini-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-hover);border-color:var(--neon-line);color:var(--text);}
.mini-card img{width:100%;aspect-ratio:16/9;object-fit:cover;background:var(--surface-2);}
.mini-body{padding:14px 16px 18px;}
.mini-body h4{font-size:16px;font-weight:600;line-height:1.55;margin:0 0 10px;}
.mini-body .time{font-size:13px;color:var(--text-3);font-variant-numeric:tabular-nums;}

/* ---------- sidebar ---------- */
.side-sticky{position:sticky;top:100px;}
.side-card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-card);
  padding:20px;margin-bottom:20px;box-shadow:var(--shadow);
}
.side-title{position:relative;font-size:16px;font-weight:700;padding-left:12px;margin:0 0 16px;}
.side-title::before{content:"";position:absolute;left:0;top:.2em;bottom:.2em;width:3px;border-radius:2px;background:var(--neon);}
.side-nav{display:flex;flex-direction:column;gap:6px;}
.side-nav a{
  display:flex;align-items:center;gap:10px;padding:10px 12px;border-radius:10px;
  color:var(--text-2);font-size:14px;transition:background-color .2s ease,color .2s ease;
}
.side-nav a i{font-size:13px;color:var(--text-3);}
.side-nav a:hover{background:rgba(43,228,166,.10);color:var(--neon);}
.side-nav a:hover i{color:var(--neon);}
.hot-list{list-style:none;padding:0;counter-reset:hot;}
.hot-list li{
  counter-increment:hot;display:flex;gap:12px;align-items:flex-start;
  padding:11px 0;border-bottom:1px dashed var(--line);font-size:14px;line-height:1.6;
}
.hot-list li:last-child{border-bottom:0;padding-bottom:0;}
.hot-list li::before{
  content:counter(hot,decimal-leading-zero);
  color:var(--neon);font-weight:700;font-variant-numeric:tabular-nums;flex-shrink:0;
}
.hot-list a{color:var(--text-2);}
.hot-list a:hover{color:var(--neon);}
.join-card{background:#F7F6FB;border-radius:var(--radius-card);padding:22px;color:#1B1730;}
.join-card h3{font-size:18px;color:#1B1730;margin:0 0 8px;}
.join-card p{font-size:14px;line-height:1.7;color:#4B4560;margin:0 0 16px;}
.join-card .btn-dark{width:100%;}

/* ---------- cta band ---------- */
.cta-band{
  background:#F7F6FB;color:#1B1730;border-radius:20px;
  padding:32px 36px;margin:56px 0 0;
  display:flex;align-items:center;justify-content:space-between;gap:28px;flex-wrap:wrap;
}
.cta-band h2{font-size:24px;color:#1B1730;margin:0 0 8px;}
.cta-band p{font-size:15px;color:#4B4560;margin:0;max-width:620px;}
.cta-band .btn-dark{padding:12px 24px;font-size:15px;}

/* ---------- footer ---------- */
.site-footer{
  margin-top:72px;background:var(--bg-deep);
  border-top:1px solid var(--line);padding:56px 0 24px;
}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.1fr;gap:32px;}
.footer-brand .brand{margin-bottom:14px;}
.footer-brand p{font-size:14px;line-height:1.8;color:var(--text-3);margin:0;max-width:340px;}
.footer-title{font-size:14px;font-weight:600;color:var(--text);margin-bottom:14px;}
.footer-links{display:flex;flex-direction:column;gap:10px;}
.footer-links a{font-size:14px;color:var(--text-3);}
.footer-links a:hover{color:var(--neon);}
.footer-contact{list-style:none;padding:0;display:flex;flex-direction:column;gap:10px;font-size:14px;color:var(--text-3);}
.footer-contact i{color:var(--neon);margin-right:8px;}
.footer-bottom{
  margin-top:40px;padding-top:20px;border-top:1px solid var(--line);
  display:flex;justify-content:space-between;gap:10px;flex-wrap:wrap;
  font-size:13px;color:var(--text-3);
}

/* ---------- responsive ---------- */
@media (max-width:1199px){
  .nav-card{padding:9px 11px;font-size:13px;}
  .footer-grid{grid-template-columns:1.4fr 1fr 1fr;gap:26px;}
}
@media (max-width:991px){
  .header-bar{gap:12px;}
  .nav-toggle{display:inline-flex;margin-left:auto;}
  .brand-text strong{font-size:15px;}
  .nav-panel{
    display:none;position:absolute;left:0;right:0;top:calc(100% + 12px);
    flex-direction:column;align-items:stretch;padding:14px;gap:12px;
    box-shadow:0 20px 40px rgba(0,0,0,.5);
  }
  .nav-panel.is-open{display:flex;}
  .nav-items{display:grid;grid-template-columns:1fr 1fr;gap:8px;width:100%;}
  .nav-card{
    flex-direction:column;align-items:flex-start;gap:8px;
    border:1px solid var(--line);padding:14px 12px;font-size:14px;white-space:normal;
  }
  .nav-card.is-active::before{display:none;}
  .nav-cta{width:100%;}
  .article-body{max-width:100%;}
  .side-sticky{position:static;margin-top:32px;}
  .related-grid{grid-template-columns:1fr 1fr;}
  .cta-band{padding:26px 22px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px;}
}
@media (max-width:575px){
  .wrap{padding:0 16px;}
  .article-title{font-size:26px;}
  .nav-items{grid-template-columns:1fr;}
  .related-grid{grid-template-columns:1fr;}
  .footer-grid{grid-template-columns:1fr;}
  .cta-band{padding:22px 18px;}
  .cta-band .btn-dark{width:100%;}
  .btn-neon,.btn-ghost{padding:12px 18px;}
  .meta-row{gap:10px;}
}

/* roulang page: category1 */
:root{
  --bg:#0F0D1A;
  --bg-alt:#151226;
  --bg-deep:#0B0A14;
  --surface:#1B1730;
  --surface-hover:#221C3B;
  --primary:#2BE4A6;
  --accent:#FF7A45;
  --violet:#B07BFF;
  --text:#F4F2FB;
  --text-2:#A79FC4;
  --text-3:#6F6890;
  --line:rgba(255,255,255,.08);
  --line-primary:rgba(43,228,166,.30);
  --line-violet:rgba(176,123,255,.42);
  --light-bg:#F7F6FB;
  --light-text:#1B1730;
  --radius-card:16px;
  --radius-panel:20px;
  --radius-btn:10px;
  --radius-pill:999px;
  --shadow-card:0 8px 24px rgba(0,0,0,.35);
  --shadow-hover:0 16px 34px rgba(0,0,0,.46);
  --glow:0 0 24px rgba(43,228,166,.18);
  --space-block:72px;
  --bs-primary:#2BE4A6;
  --bs-body-bg:#0F0D1A;
  --bs-body-color:#F4F2FB;
  --bs-border-radius:16px;
  --bs-border-color:rgba(255,255,255,.08);
  --bs-link-color:#2BE4A6;
  --bs-link-hover-color:#FF7A45;
  --bs-font-sans-serif:-apple-system,"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",Inter,sans-serif;
}

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

html{scroll-behavior:smooth;}

body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:-apple-system,"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",Inter,sans-serif;
  font-size:16px;
  line-height:1.75;
  letter-spacing:.01em;
  -webkit-font-smoothing:antialiased;
}

img{max-width:100%;display:block;}
a{color:var(--primary);text-decoration:none;transition:color .2s ease;}
a:hover{color:var(--accent);}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4{margin:0;font-weight:700;letter-spacing:.01em;}
p{margin:0;}
button{font-family:inherit;}
:focus-visible{outline:2px solid var(--primary);outline-offset:2px;border-radius:6px;}

.wrap{
  width:100%;
  max-width:1200px;
  margin:0 auto;
  padding:0 20px;
}

/* ---------------- header / nav ---------------- */
.site-header{
  position:sticky;
  top:0;
  z-index:1000;
  background:rgba(15,13,26,.94);
  backdrop-filter:blur(10px);
  border-bottom:1px solid var(--line);
  padding-top:6px;
}
.site-header::before{
  content:"";
  position:absolute;
  top:0;left:0;right:0;
  height:6px;
  background:linear-gradient(90deg,var(--primary),var(--violet));
  opacity:.92;
}
.header-bar{
  display:flex;
  align-items:center;
  gap:20px;
  padding-top:16px;
  padding-bottom:16px;
  position:relative;
}
.brand{
  display:inline-flex;
  align-items:center;
  gap:10px;
  flex:0 0 auto;
  color:var(--text);
}
.brand:hover{color:var(--text);}
.brand-mark{
  width:40px;height:40px;
  display:grid;place-items:center;
  border-radius:12px;
  background:var(--surface);
  border:1px solid var(--line);
}
.brand.small .brand-mark{width:34px;height:34px;border-radius:10px;}
.brand-text{display:flex;flex-direction:column;line-height:1.15;}
.brand-text strong{font-size:17px;font-weight:700;}
.brand-text em{
  font-style:normal;
  font-size:12px;
  color:var(--primary);
  letter-spacing:.18em;
}

.nav-panel{
  flex:1 1 auto;
  display:flex;
  align-items:center;
  gap:10px;
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:18px;
  padding:8px;
  min-width:0;
}
.nav-items{
  display:flex;
  align-items:center;
  gap:4px;
  flex:1 1 auto;
  min-width:0;
}
.nav-card{
  display:inline-flex;
  align-items:center;
  gap:8px;
  padding:9px 12px;
  border-radius:12px;
  font-size:14px;
  color:var(--text-2);
  white-space:nowrap;
  transition:background .2s ease,color .2s ease,transform .2s ease;
}
.nav-card i{font-size:14px;color:var(--primary);opacity:.85;}
.nav-card:hover{
  background:rgba(43,228,166,.10);
  color:var(--primary);
  transform:translateY(-1px);
}
.nav-card.is-active{
  background:rgba(43,228,166,.12);
  color:var(--primary);
  box-shadow:inset 2px 0 0 var(--primary);
}
.btn-neon{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  height:44px;
  padding:0 20px;
  border:1px solid transparent;
  border-radius:var(--radius-btn);
  background:var(--primary);
  color:#0B0A14;
  font-size:15px;
  font-weight:600;
  cursor:pointer;
  transition:transform .2s ease,box-shadow .2s ease,background .2s ease;
}
.btn-neon:hover{
  background:#48ecb4;
  color:#0B0A14;
  transform:translateY(-1px);
  box-shadow:var(--glow);
}
.btn-ghost{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  height:44px;
  padding:0 20px;
  border:1px solid var(--line-primary);
  border-radius:var(--radius-btn);
  background:transparent;
  color:var(--primary);
  font-size:15px;
  font-weight:600;
  cursor:pointer;
  transition:background .2s ease,transform .2s ease,color .2s ease;
}
.btn-ghost:hover{
  background:rgba(43,228,166,.10);
  color:var(--primary);
  transform:translateY(-1px);
}
.nav-cta{flex:0 0 auto;height:40px;padding:0 16px;font-size:14px;}
.nav-toggle{
  display:none;
  width:44px;height:44px;
  align-items:center;
  justify-content:center;
  border:1px solid var(--line);
  border-radius:12px;
  background:var(--surface);
  color:var(--primary);
  font-size:17px;
  cursor:pointer;
}

/* ---------------- page hero ---------------- */
.page-hero{
  position:relative;
  min-height:240px;
  display:flex;
  align-items:center;
  background-image:linear-gradient(90deg,rgba(11,10,20,.96) 0%,rgba(11,10,20,.78) 45%,rgba(11,10,20,.42) 100%),url('/assets/images/backpic/back-1.webp');
  background-size:cover;
  background-position:center;
  border-bottom:1px solid var(--line);
}
.page-hero .wrap{padding-top:44px;padding-bottom:44px;}
.breadcrumb-line{
  display:flex;
  align-items:center;
  gap:8px;
  font-size:13px;
  color:var(--text-3);
  margin-bottom:16px;
  flex-wrap:wrap;
}
.breadcrumb-line a{color:var(--text-2);}
.breadcrumb-line a:hover{color:var(--primary);}
.breadcrumb-line span.sep{color:var(--text-3);}
.breadcrumb-line .current{color:var(--text-3);}
.page-hero h1{
  font-size:clamp(28px,4vw,44px);
  line-height:1.2;
  max-width:820px;
}
.page-hero .hero-sub{
  margin-top:14px;
  font-size:17px;
  color:var(--text-2);
  max-width:640px;
}
.hero-tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:22px;}
.pill{
  display:inline-flex;
  align-items:center;
  gap:6px;
  padding:5px 13px;
  border-radius:var(--radius-pill);
  font-size:13px;
  background:rgba(43,228,166,.12);
  color:var(--primary);
  border:1px solid rgba(43,228,166,.22);
}
.pill.orange{
  background:rgba(255,122,69,.14);
  color:var(--accent);
  border-color:rgba(255,122,69,.28);
}
.pill.violet{
  background:rgba(176,123,255,.14);
  color:var(--violet);
  border-color:rgba(176,123,255,.28);
}

/* ---------------- sections ---------------- */
.section{padding:var(--space-block) 0;}
.section--alt{background:var(--bg-alt);border-top:1px solid var(--line);border-bottom:1px solid var(--line);}
.section--deep{background:var(--bg-deep);}
.section-head{margin-bottom:32px;max-width:760px;}
.section-head h2{
  font-size:clamp(24px,3vw,31px);
  line-height:1.28;
}
.section-head p{
  margin-top:12px;
  color:var(--text-2);
  font-size:15px;
}
.eyebrow{
  display:inline-flex;
  align-items:center;
  gap:8px;
  font-size:13px;
  letter-spacing:.14em;
  color:var(--primary);
  margin-bottom:12px;
}
.eyebrow::before{
  content:"";
  width:22px;height:2px;
  background:var(--primary);
  border-radius:2px;
}

/* ---------------- split block ---------------- */
.split{
  display:grid;
  grid-template-columns:1fr 5fr;
  grid-template-columns:minmax(0,1.35fr) minmax(0,1fr);
  gap:48px;
  align-items:center;
}
.split .split-visual{
  grid-column:2 / 3;
  grid-row:1 / 2;
}
.split .split-copy{
  grid-column:1 / 2;
  grid-row:1 / 2;
}
.visual-frame{
  position:relative;
  border-radius:var(--radius-panel);
  overflow:hidden;
  border:1px solid var(--line);
  box-shadow:var(--shadow-card);
}
.visual-frame img{
  width:100%;
  aspect-ratio:16/10;
  object-fit:cover;
}
.visual-frame::after{
  content:"";
  position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(11,10,20,.12) 0%,rgba(11,10,20,.75) 100%);
}
.visual-badge{
  position:absolute;
  left:18px;bottom:16px;
  z-index:2;
  display:inline-flex;
  align-items:center;
  gap:8px;
  padding:7px 14px;
  border-radius:var(--radius-pill);
  background:rgba(27,23,48,.85);
  border:1px solid var(--line);
  font-size:13px;
  color:var(--text-2);
}
.split-copy h2{font-size:clamp(24px,3vw,30px);line-height:1.3;}
.split-copy > p{margin-top:14px;color:var(--text-2);font-size:15.5px;}
.check-list{margin-top:24px;display:grid;gap:14px;}
.check-list li{
  display:flex;
  gap:12px;
  align-items:flex-start;
  font-size:15px;
  color:var(--text-2);
  padding:14px 16px;
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:14px;
  transition:transform .2s ease,border-color .2s ease,box-shadow .2s ease;
}
.check-list li:hover{
  transform:translateY(-3px);
  border-color:var(--line-primary);
  box-shadow:var(--shadow-card);
}
.check-list i{color:var(--primary);margin-top:5px;font-size:14px;}
.check-list strong{display:block;color:var(--text);font-size:15.5px;margin-bottom:2px;}
.cta-row{display:flex;flex-wrap:wrap;gap:14px;margin-top:28px;}

/* ---------------- info cards 1大2小 ---------------- */
.info-grid{
  display:grid;
  grid-template-columns:repeat(3,minmax(0,1fr));
  gap:24px;
}
.info-card{
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  padding:24px;
  box-shadow:var(--shadow-card);
  transition:transform .2s ease,border-color .2s ease,box-shadow .2s ease;
}
.info-card:hover{
  transform:translateY(-3px);
  border-color:var(--line-primary);
  box-shadow:var(--shadow-hover);
}
.info-card.is-large{
  grid-column:span 2;
  display:grid;
  grid-template-columns:minmax(0,1fr) minmax(0,1.1fr);
  gap:24px;
  padding:0;
  overflow:hidden;
}
.info-card.is-large .info-media{position:relative;min-height:240px;}
.info-card.is-large .info-media img{width:100%;height:100%;object-fit:cover;position:absolute;inset:0;}
.info-card.is-large .info-body{padding:26px 26px 26px 0;display:flex;flex-direction:column;justify-content:center;}
.info-icon{
  width:44px;height:44px;
  display:grid;place-items:center;
  border-radius:12px;
  background:rgba(43,228,166,.12);
  color:var(--primary);
  font-size:17px;
  margin-bottom:16px;
}
.info-card h3{font-size:20px;line-height:1.4;margin-bottom:10px;}
.info-card p{color:var(--text-2);font-size:15px;}
.info-card .card-foot{
  margin-top:18px;
  font-size:13px;
  color:var(--text-3);
  display:flex;
  align-items:center;
  gap:8px;
}

/* ---------------- stat strip ---------------- */
.stat-strip{
  display:grid;
  grid-template-columns:repeat(4,minmax(0,1fr));
  gap:16px;
  margin-top:28px;
}
.stat-item{
  background:rgba(27,23,48,.6);
  border:1px solid var(--line);
  border-radius:14px;
  padding:18px 20px;
}
.stat-item .num{
  font-size:24px;
  font-weight:700;
  color:var(--primary);
  font-variant-numeric:tabular-nums;
  line-height:1.2;
}
.stat-item .lab{
  margin-top:6px;
  font-size:13px;
  color:var(--text-3);
}

/* ---------------- compare rows ---------------- */
.compare{
  border:1px solid var(--line);
  border-radius:var(--radius-panel);
  background:var(--surface);
  overflow:hidden;
}
.compare-head,
.compare-row{
  display:grid;
  grid-template-columns:minmax(0,1.5fr) repeat(3,minmax(0,1fr));
  align-items:center;
  gap:12px;
  padding:16px 22px;
}
.compare-head{
  background:rgba(34,28,59,.85);
  border-bottom:1px solid var(--line);
  font-size:14px;
  color:var(--text-2);
}
.compare-head .col-primary{color:var(--primary);font-weight:600;}
.compare-head .col-violet{color:var(--violet);font-weight:600;}
.compare-head .col-plain{color:var(--text-3);font-weight:600;}
.compare-row{
  border-bottom:1px solid var(--line);
  font-size:15px;
  transition:background .2s ease;
}
.compare-row:last-child{border-bottom:0;}
.compare-row:hover{background:rgba(43,228,166,.05);}
.compare-name{color:var(--text);font-weight:600;}
.compare-val{display:flex;align-items:center;gap:8px;color:var(--text-2);font-size:14.5px;}
.compare-val i.yes{color:var(--primary);font-size:14px;}
.compare-val i.no{color:var(--text-3);font-size:14px;}
.compare-val .cmp-label{display:none;color:var(--text-3);font-size:13px;}

/* ---------------- level cards ---------------- */
.level-cards{
  display:grid;
  grid-template-columns:repeat(3,minmax(0,1fr));
  gap:24px;
  margin-top:32px;
  align-items:start;
}
.level-card{
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--radius-panel);
  padding:26px;
  box-shadow:var(--shadow-card);
  position:relative;
  transition:transform .2s ease,border-color .2s ease,box-shadow .2s ease;
}
.level-card:hover{transform:translateY(-3px);border-color:var(--line-primary);box-shadow:var(--shadow-hover);}
.level-card.is-featured{
  border-color:var(--line-violet);
  box-shadow:0 0 24px rgba(176,123,255,.20),var(--shadow-card);
  transform:translateY(-12px);
}
.level-card.is-featured:hover{transform:translateY(-15px);}
.level-flag{
  position:absolute;
  top:16px;right:16px;
  font-size:12px;
  padding:4px 12px;
  border-radius:var(--radius-pill);
  background:rgba(176,123,255,.16);
  color:var(--violet);
  border:1px solid rgba(176,123,255,.32);
}
.level-medal{
  width:52px;height:52px;
  border-radius:16px;
  display:grid;place-items:center;
  font-size:20px;
  font-weight:700;
  font-variant-numeric:tabular-nums;
  margin-bottom:18px;
}
.level-medal.m1{background:rgba(255,255,255,.06);color:var(--text-2);}
.level-medal.m2{background:rgba(43,228,166,.14);color:var(--primary);}
.level-medal.m3{background:rgba(176,123,255,.16);color:var(--violet);}
.level-card h3{font-size:21px;margin-bottom:6px;}
.level-card .level-desc{font-size:14px;color:var(--text-3);margin-bottom:18px;}
.level-lines{display:grid;gap:10px;margin-bottom:20px;}
.level-lines li{display:flex;gap:10px;font-size:14.5px;color:var(--text-2);}
.level-lines i{color:var(--primary);font-size:13px;margin-top:5px;}
.level-price{
  display:flex;
  align-items:baseline;
  gap:8px;
  padding-top:18px;
  border-top:1px solid var(--line);
  margin-bottom:16px;
}
.level-price .amount{
  font-size:24px;
  font-weight:700;
  color:var(--text);
  font-variant-numeric:tabular-nums;
}
.level-price .cycle{font-size:13px;color:var(--text-3);}
.level-progress{
  height:6px;
  border-radius:var(--radius-pill);
  background:rgba(255,255,255,.07);
  overflow:hidden;
  margin-bottom:18px;
}
.level-progress span{display:block;height:100%;border-radius:var(--radius-pill);background:linear-gradient(90deg,var(--violet),var(--primary));}
.level-card .btn-neon,
.level-card .btn-ghost{width:100%;}

/* ---------------- scenario list ---------------- */
.scene-grid{
  display:grid;
  grid-template-columns:repeat(2,minmax(0,1fr));
  gap:24px;
}
.scene-card{
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  padding:24px 26px;
  display:flex;
  gap:16px;
  transition:transform .2s ease,border-color .2s ease,box-shadow .2s ease;
}
.scene-card:hover{transform:translateY(-3px);border-color:var(--line-primary);box-shadow:var(--shadow-card);}
.scene-num{
  flex:0 0 auto;
  width:40px;height:40px;
  border-radius:12px;
  display:grid;place-items:center;
  background:rgba(43,228,166,.12);
  color:var(--primary);
  font-size:15px;
  font-weight:700;
  font-variant-numeric:tabular-nums;
}
.scene-card h3{font-size:18px;margin-bottom:8px;}
.scene-card p{font-size:14.5px;color:var(--text-2);}
.scene-card .scene-meta{
  margin-top:12px;
  font-size:13px;
  color:var(--text-3);
  display:flex;
  flex-wrap:wrap;
  gap:10px;
}

/* ---------------- faq ---------------- */
.faq-wrap{max-width:900px;}
.accordion-item{
  background:var(--surface);
  border:1px solid var(--line) !important;
  border-radius:14px !important;
  margin-bottom:12px;
  overflow:hidden;
}
.accordion-button{
  background:transparent;
  color:var(--text);
  font-size:17px;
  font-weight:600;
  padding:20px 22px;
  box-shadow:none !important;
  border-left:3px solid transparent;
}
.accordion-button:not(.collapsed){
  background:rgba(43,228,166,.05);
  color:var(--primary);
  border-left:3px solid var(--primary);
}
.accordion-button::after{
  content:"+";
  background-image:none !important;
  width:28px;height:28px;
  border-radius:50%;
  border:1px solid var(--line);
  color:var(--primary);
  display:grid;
  place-items:center;
  font-size:17px;
  line-height:1;
  transform:none !important;
  flex:0 0 auto;
  margin-left:16px;
}
.accordion-button:not(.collapsed)::after{
  content:"−";
  border-color:var(--line-primary);
  background:rgba(43,228,166,.12);
}
.accordion-body{
  padding:4px 22px 22px;
  color:var(--text-2);
  font-size:15px;
}

/* ---------------- cta band ---------------- */
.cta-band{
  background:var(--light-bg);
  color:var(--light-text);
  border-radius:var(--radius-panel);
  padding:36px 40px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:28px;
  flex-wrap:wrap;
}
.cta-band h2{font-size:24px;color:var(--light-text);}
.cta-band p{margin-top:10px;font-size:15px;color:#4A4463;max-width:620px;}
.cta-band .btn-dark-neon{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  height:46px;
  padding:0 24px;
  border-radius:var(--radius-btn);
  background:var(--light-text);
  color:var(--primary);
  font-weight:600;
  font-size:15px;
  transition:transform .2s ease,box-shadow .2s ease;
}
.cta-band .btn-dark-neon:hover{
  color:var(--primary);
  transform:translateY(-1px);
  box-shadow:0 10px 24px rgba(27,23,48,.28);
}

/* ---------------- footer ---------------- */
.site-footer{
  background:var(--bg-deep);
  border-top:1px solid var(--line);
  padding:56px 0 26px;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.6fr 1fr 1fr 1.1fr;
  gap:32px;
}
.footer-brand p{
  margin-top:16px;
  font-size:14px;
  color:var(--text-3);
  max-width:320px;
}
.footer-title{
  font-size:15px;
  font-weight:600;
  color:var(--text);
  margin-bottom:16px;
}
.footer-links{display:grid;gap:11px;}
.footer-links a{font-size:14px;color:var(--text-2);}
.footer-links a:hover{color:var(--primary);}
.footer-contact{display:grid;gap:11px;}
.footer-contact li{
  display:flex;
  gap:10px;
  font-size:14px;
  color:var(--text-2);
  align-items:flex-start;
}
.footer-contact i{color:var(--primary);margin-top:4px;font-size:13px;}
.footer-bottom{
  margin-top:40px;
  padding-top:22px;
  border-top:1px solid var(--line);
  display:flex;
  justify-content:space-between;
  gap:14px;
  flex-wrap:wrap;
  font-size:13px;
  color:var(--text-3);
}

/* ---------------- responsive ---------------- */
@media (max-width:1199px){
  :root{--space-block:64px;}
  .split{gap:36px;}
  .nav-card{padding:9px 10px;font-size:13.5px;}
}

@media (max-width:991px){
  :root{--space-block:56px;}
  .nav-toggle{display:inline-flex;}
  .header-bar{justify-content:space-between;}
  .nav-panel{
    position:absolute;
    top:calc(100% + 10px);
    left:20px;
    right:20px;
    flex-direction:column;
    align-items:stretch;
    gap:12px;
    padding:14px;
    display:none;
    box-shadow:var(--shadow-hover);
  }
  .nav-panel.is-open{display:flex;}
  .nav-items{
    display:grid;
    grid-template-columns:repeat(2,minmax(0,1fr));
    gap:8px;
  }
  .nav-card{
    flex-direction:column;
    align-items:flex-start;
    gap:6px;
    padding:12px;
    background:rgba(255,255,255,.02);
    border:1px solid var(--line);
    white-space:normal;
    line-height:1.4;
    min-height:74px;
  }
  .nav-cta{width:100%;}
  .split{grid-template-columns:1fr;gap:28px;}
  .split .split-visual{grid-column:1;grid-row:1;}
  .split .split-copy{grid-column:1;grid-row:2;}
  .info-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .info-card.is-large{grid-column:span 2;grid-template-columns:1fr;}
  .info-card.is-large .info-media{min-height:200px;position:relative;}
  .info-card.is-large .info-body{padding:0 24px 24px;}
  .level-cards{grid-template-columns:1fr;}
  .level-card.is-featured{transform:none;}
  .level-card.is-featured:hover{transform:translateY(-3px);}
  .footer-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .compare-head{display:none;}
  .compare-row{
    grid-template-columns:1fr;
    gap:10px;
    padding:20px 22px;
  }
  .compare-name{font-size:16px;}
  .compare-val{justify-content:space-between;gap:12px;padding:8px 0;border-top:1px solid var(--line);}
  .compare-val .cmp-label{display:inline;}
}

@media (max-width:767px){
  .scene-grid{grid-template-columns:1fr;}
  .stat-strip{grid-template-columns:repeat(2,minmax(0,1fr));}
  .cta-band{padding:28px 24px;}
  .cta-band .btn-dark-neon{width:100%;}
  .page-hero{min-height:210px;}
}

@media (max-width:575px){
  .wrap{padding:0 16px;}
  :root{--space-block:48px;}
  .brand-text strong{font-size:15.5px;}
  .info-grid{grid-template-columns:1fr;}
  .info-card.is-large{grid-column:span 1;}
  .stat-strip{grid-template-columns:1fr;}
  .footer-grid{grid-template-columns:1fr;}
  .cta-row .btn-neon,
  .cta-row .btn-ghost{width:100%;}
  .accordion-button{font-size:16px;padding:18px;}
  .nav-panel{left:16px;right:16px;}
  .nav-items{grid-template-columns:1fr;}
}

/* roulang page: category2 */
:root{
  --main:#2BE4A6;
  --main-08:rgba(43,228,166,.08);
  --main-10:rgba(43,228,166,.10);
  --main-12:rgba(43,228,166,.12);
  --main-30:rgba(43,228,166,.30);
  --orange:#FF7A45;
  --purple:#B07BFF;
  --purple-12:rgba(176,123,255,.12);
  --purple-40:rgba(176,123,255,.40);
  --bg0:#0F0D1A;
  --bg1:#151226;
  --bg2:#0B0A14;
  --surface:#1B1730;
  --surface-hi:#221C3B;
  --tx1:#F4F2FB;
  --tx2:#A79FC4;
  --tx3:#6F6890;
  --line:rgba(255,255,255,.08);
  --light:#F7F6FB;
  --light-tx:#1B1730;
  --light-line:rgba(27,23,48,.12);
  --r-card:16px;
  --r-panel:18px;
  --r-btn:10px;
  --r-pill:999px;
  --sh-card:0 8px 24px rgba(0,0,0,.35);
  --sh-hi:0 16px 34px rgba(0,0,0,.48);
  --glow:0 0 24px rgba(43,228,166,.18);
  --wrap:1200px;
  --gap:24px;
  --ease:200ms ease;
}

*,*::before,*::after{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--bg0);
  color:var(--tx1);
  font-family:-apple-system,"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",Inter,sans-serif;
  font-size:16px;
  line-height:1.75;
  letter-spacing:.01em;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;transition:color var(--ease);}
button,input{font:inherit;}
ul{list-style:none;margin:0;padding:0;}
h1,h2,h3,h4{margin:0;line-height:1.25;font-weight:700;}
p{margin:0;}
.num{font-variant-numeric:tabular-nums;}

.wrap{max-width:var(--wrap);margin:0 auto;padding:0 20px;}

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(15,13,26,.96);
  border-bottom:1px solid var(--line);
}
.header-bar{
  display:flex;align-items:center;gap:20px;
  padding:14px 20px;position:relative;
}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto;}
.brand-mark{display:grid;place-items:center;width:38px;height:38px;border-radius:12px;background:var(--surface);border:1px solid var(--line);}
.brand-text{display:flex;align-items:baseline;gap:4px;font-size:17px;letter-spacing:.02em;}
.brand-text strong{color:var(--tx1);font-weight:700;}
.brand-text em{color:var(--main);font-style:normal;font-weight:600;font-size:14px;}
.brand.small .brand-mark{width:32px;height:32px;border-radius:10px;}
.brand.small .brand-text{font-size:15px;}

.nav-panel{
  position:relative;
  flex:1 1 auto;
  display:flex;align-items:center;gap:12px;
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--r-panel);
  padding:8px;
}
.nav-panel::before{
  content:"";position:absolute;top:0;left:18px;width:96px;height:6px;
  border-radius:0 0 6px 6px;
  background:linear-gradient(90deg,var(--main),var(--purple));
}
.nav-items{display:flex;align-items:center;gap:6px;flex:1 1 auto;flex-wrap:wrap;}
.nav-card{
  display:flex;align-items:center;gap:8px;
  padding:10px 14px;border-radius:12px;
  font-size:14px;color:var(--tx2);
  transition:background var(--ease),color var(--ease),transform var(--ease);
}
.nav-card i{font-size:15px;}
.nav-card:hover{background:var(--main-10);color:var(--main);}
.nav-card.is-active{
  background:var(--main-12);color:var(--main);font-weight:600;
  box-shadow:inset 2px 0 0 var(--main);
}
.nav-cta{
  flex:0 0 auto;
  display:inline-flex;align-items:center;justify-content:center;
  padding:10px 18px;border-radius:var(--r-btn);
  background:var(--main);color:#0F0D1A;font-weight:700;font-size:14px;
  transition:transform var(--ease),box-shadow var(--ease),filter var(--ease);
}
.nav-cta:hover{transform:translateY(-1px);filter:brightness(1.08);box-shadow:var(--glow);color:#0F0D1A;}
.nav-toggle{
  display:none;margin-left:auto;
  width:44px;height:44px;border-radius:12px;
  background:var(--surface);border:1px solid var(--line);color:var(--tx1);
  transition:border-color var(--ease),color var(--ease);
}
.nav-toggle:hover{border-color:var(--main-30);color:var(--main);}

/* ---------- buttons ---------- */
.btn-neon,.btn-ghost{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:44px;padding:0 20px;border-radius:var(--r-btn);
  font-size:15px;font-weight:600;border:1px solid transparent;cursor:pointer;
  transition:transform var(--ease),background var(--ease),color var(--ease),box-shadow var(--ease),border-color var(--ease);
}
.btn-neon{background:var(--main);color:#0F0D1A;}
.btn-neon:hover{transform:translateY(-1px);filter:brightness(1.08);box-shadow:var(--glow);color:#0F0D1A;}
.btn-ghost{background:transparent;border-color:var(--main);color:var(--main);}
.btn-ghost:hover{background:var(--main-10);color:var(--main);}
.btn-dark{background:var(--light-tx);color:var(--main);}
.btn-dark:hover{transform:translateY(-1px);background:#251f42;color:var(--main);}
.btn-sm{min-height:38px;padding:0 16px;font-size:14px;}

:focus-visible{outline:2px solid var(--main);outline-offset:2px;}

/* ---------- page hero ---------- */
.category-hero{
  position:relative;
  padding:46px 0 44px;
  background:
    linear-gradient(180deg,rgba(11,10,20,.82) 0%,rgba(15,13,26,.94) 60%,var(--bg0) 100%),
    url("/assets/images/backpic/back-1.webp") center/cover no-repeat;
  border-bottom:1px solid var(--line);
}
.category-hero::after{
  content:"";position:absolute;top:-60px;right:-40px;width:360px;height:360px;
  background:radial-gradient(circle,rgba(43,228,166,.16),transparent 68%);
  pointer-events:none;
}
.crumb{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--tx3);margin-bottom:20px;position:relative;z-index:1;}
.crumb a:hover{color:var(--main);}
.crumb .sep{color:var(--tx3);}
.crumb .current{color:var(--tx2);}
.category-hero h1{
  font-size:clamp(28px,4vw,44px);
  line-height:1.2;
  letter-spacing:.01em;
  position:relative;z-index:1;
}
.hero-sub{
  margin-top:16px;max-width:720px;
  font-size:18px;line-height:1.7;color:var(--tx2);
  position:relative;z-index:1;
}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:28px;position:relative;z-index:1;}
.hero-tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:26px;position:relative;z-index:1;}
.pill{
  display:inline-flex;align-items:center;gap:6px;
  padding:6px 14px;border-radius:var(--r-pill);
  font-size:13px;background:var(--main-12);color:var(--main);
}
.pill.orange{background:rgba(255,122,69,.14);color:var(--orange);}
.pill.purple{background:var(--purple-12);color:var(--purple);}

/* ---------- sections ---------- */
.section{padding:72px 0;}
.section.alt{background:var(--bg1);}
.section.deep{background:var(--bg2);}
.section-head{margin-bottom:36px;max-width:760px;}
.section-head.center{margin-left:auto;margin-right:auto;text-align:center;}
.section-head h2{font-size:clamp(24px,3vw,32px);}
.section-head .lead{margin-top:12px;color:var(--tx2);font-size:15px;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;font-weight:600;letter-spacing:.08em;
  color:var(--main);margin-bottom:14px;text-transform:uppercase;
}

/* ---------- 2x2 points ---------- */
.points-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:var(--gap);}
.point-card{
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  padding:26px;
  box-shadow:var(--sh-card);
  transition:transform var(--ease),border-color var(--ease),box-shadow var(--ease),background var(--ease);
}
.point-card:hover{transform:translateY(-3px);border-color:var(--main-30);box-shadow:var(--sh-hi);background:var(--surface-hi);}
.point-top{display:flex;align-items:center;gap:14px;margin-bottom:14px;}
.point-icon{
  width:44px;height:44px;border-radius:12px;flex:0 0 auto;
  display:grid;place-items:center;
  background:var(--main-12);color:var(--main);font-size:17px;
}
.point-icon.violet{background:var(--purple-12);color:var(--purple);}
.point-icon.warm{background:rgba(255,122,69,.14);color:var(--orange);}
.point-card h3{font-size:19px;}
.point-card p{color:var(--tx2);font-size:14.5px;margin-top:4px;}

/* ---------- feature grid 1 big 2 small ---------- */
.feature-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:var(--gap);}
.feature-card{
  position:relative;display:flex;flex-direction:column;
  background:var(--surface);border:1px solid var(--line);
  border-radius:var(--r-panel);overflow:hidden;
  box-shadow:var(--sh-card);
  transition:transform var(--ease),border-color var(--ease),box-shadow var(--ease);
}
.feature-card:hover{transform:translateY(-3px);border-color:var(--main-30);box-shadow:var(--sh-hi);}
.feature-card.big{grid-column:span 2;}
.feature-media{position:relative;aspect-ratio:16/9;overflow:hidden;background:var(--surface-hi);}
.feature-card.big .feature-media{aspect-ratio:16/7;}
.feature-media img{width:100%;height:100%;object-fit:cover;}
.feature-media::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(11,10,20,.05) 30%,rgba(11,10,20,.72) 100%);
}
.feature-body{padding:22px;display:flex;flex-direction:column;gap:10px;flex:1 1 auto;}
.feature-body h3{font-size:19px;}
.feature-body p{color:var(--tx2);font-size:14.5px;}
.feature-meta{display:flex;align-items:center;gap:12px;font-size:13px;color:var(--tx3);margin-top:auto;}
.feature-meta i{color:var(--main);}
.feature-tag{
  position:absolute;top:14px;left:14px;z-index:2;
  padding:5px 12px;border-radius:var(--r-pill);
  font-size:13px;background:rgba(15,13,26,.72);color:var(--main);
  border:1px solid var(--main-30);
}

/* ---------- steps ---------- */
.steps{position:relative;padding-left:34px;}
.steps::before{
  content:"";position:absolute;left:11px;top:8px;bottom:8px;width:2px;
  background:linear-gradient(180deg,var(--main),var(--purple));
  opacity:.5;border-radius:2px;
}
.step{position:relative;padding:0 0 26px 0;}
.step:last-child{padding-bottom:0;}
.step::before{
  content:"";position:absolute;left:-34px;top:6px;
  width:24px;height:24px;border-radius:50%;
  background:var(--bg1);border:2px solid var(--main);
}
.step-num{
  position:absolute;left:-34px;top:6px;width:24px;height:24px;
  display:grid;place-items:center;font-size:12px;font-weight:700;color:var(--main);
}
.step h3{font-size:18px;}
.step p{color:var(--tx2);font-size:14.5px;margin-top:6px;}

/* ---------- light compare area ---------- */
.section-light{background:var(--light);color:var(--light-tx);}
.section-light .section-head h2{color:var(--light-tx);}
.section-light .section-head .lead{color:#4b4468;}
.section-light .eyebrow{color:#0f9c72;}
.compare{display:grid;grid-template-columns:repeat(3,1fr);gap:var(--gap);}
.compare-col{
  background:#fff;border:1px solid var(--light-line);border-radius:var(--r-card);
  padding:24px;display:flex;flex-direction:column;gap:16px;
  transition:transform var(--ease),box-shadow var(--ease),border-color var(--ease);
}
.compare-col:hover{transform:translateY(-3px);box-shadow:0 14px 30px rgba(27,23,48,.12);}
.compare-col.recommend{border-color:var(--purple-40);box-shadow:0 12px 28px rgba(176,123,255,.18);position:relative;}
.compare-col.recommend::after{
  content:"推荐";position:absolute;top:-12px;right:18px;
  padding:4px 12px;border-radius:var(--r-pill);
  font-size:12px;font-weight:700;color:#fff;background:var(--purple);
}
.compare-col h3{font-size:19px;color:var(--light-tx);}
.compare-col .bar{height:4px;border-radius:4px;background:#d9d6e6;}
.compare-col .bar.green{background:var(--main);}
.compare-col .bar.violet{background:var(--purple);}
.compare-col ul{display:flex;flex-direction:column;gap:10px;}
.compare-col li{display:flex;gap:10px;align-items:flex-start;font-size:14.5px;color:#413a5e;}
.compare-col li i{color:#0f9c72;margin-top:5px;font-size:13px;}
.compare-col li.no{color:#9a94b3;}
.compare-col li.no i{color:#c4bfd6;}
.compare-price{margin-top:auto;font-size:13px;color:#6d6690;font-variant-numeric:tabular-nums;}

/* ---------- FAQ ---------- */
.faq-wrap{max-width:900px;margin:0 auto;}
.accordion-item{
  background:var(--surface);
  border:1px solid var(--line) !important;
  border-radius:var(--r-card) !important;
  margin-bottom:14px;
  overflow:hidden;
  transition:border-color var(--ease),background var(--ease);
}
.accordion-item:has(.accordion-button:not(.collapsed)){border-color:var(--main-30) !important;background:var(--surface-hi);}
.accordion-button{
  background:transparent !important;
  color:var(--tx1) !important;
  font-size:17px;font-weight:600;
  padding:20px 22px 20px 24px;
  box-shadow:none !important;
  display:flex;align-items:center;gap:14px;
}
.accordion-button:not(.collapsed){color:var(--main) !important;}
.accordion-button::after{display:none !important;}
.accordion-button::before{
  content:"";position:absolute;left:0;top:14px;bottom:14px;width:3px;
  background:transparent;border-radius:0 3px 3px 0;transition:background var(--ease);
}
.accordion-button:not(.collapsed)::before{background:var(--main);}
.faq-mark{
  margin-left:auto;flex:0 0 auto;
  width:28px;height:28px;border-radius:50%;
  display:grid;place-items:center;
  background:var(--main-12);color:var(--main);font-size:13px;
  transition:background var(--ease),color var(--ease),transform var(--ease);
}
.accordion-button:not(.collapsed) .faq-mark{background:var(--main);color:#0F0D1A;transform:rotate(180deg);}
.accordion-body{padding:0 22px 22px 24px;color:var(--tx2);font-size:15px;}

/* ---------- CTA ---------- */
.cta-band{
  background:var(--light);color:var(--light-tx);
  border-radius:20px;
  padding:38px 36px;
  display:flex;align-items:center;justify-content:space-between;gap:28px;
  box-shadow:0 18px 40px rgba(0,0,0,.4);
}
.cta-band h2{font-size:clamp(22px,2.6vw,28px);color:var(--light-tx);}
.cta-band p{color:#4b4468;font-size:15px;margin-top:10px;max-width:640px;}
.cta-band .actions{display:flex;gap:12px;flex-wrap:wrap;flex:0 0 auto;}
.section-cta{padding:0 0 72px;background:var(--bg2);}

/* ---------- footer ---------- */
.site-footer{background:var(--bg2);border-top:1px solid var(--line);padding:56px 0 26px;}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:36px;}
.footer-brand p{color:var(--tx2);font-size:14px;margin-top:16px;max-width:340px;}
.footer-title{font-size:14px;font-weight:700;color:var(--tx1);margin-bottom:16px;}
.footer-links{display:flex;flex-direction:column;gap:11px;}
.footer-links a{font-size:14px;color:var(--tx2);}
.footer-links a:hover{color:var(--main);}
.footer-contact{display:flex;flex-direction:column;gap:11px;}
.footer-contact li{display:flex;align-items:center;gap:10px;font-size:14px;color:var(--tx2);}
.footer-contact i{color:var(--main);font-size:13px;}
.footer-bottom{
  margin-top:40px;padding-top:20px;border-top:1px solid var(--line);
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13px;color:var(--tx3);
}

/* ---------- responsive ---------- */
@media (max-width:1199px){
  .nav-card{padding:9px 11px;font-size:13.5px;}
  .section{padding:64px 0;}
}
@media (max-width:991px){
  .nav-toggle{display:grid;place-items:center;}
  .nav-panel{
    display:none;
    position:absolute;top:calc(100% + 8px);left:20px;right:20px;
    flex-direction:column;align-items:stretch;gap:14px;
    padding:18px;border-radius:var(--r-panel);
    box-shadow:var(--sh-hi);z-index:70;
  }
  .nav-panel.open{display:flex;}
  .nav-panel::before{left:26px;}
  .nav-items{display:grid;grid-template-columns:repeat(2,1fr);gap:10px;}
  .nav-card{
    flex-direction:column;align-items:flex-start;gap:6px;
    padding:14px;border-radius:12px;background:var(--bg0);
    border:1px solid var(--line);font-size:14px;
  }
  .nav-cta{width:100%;}
  .points-grid{grid-template-columns:1fr;}
  .feature-grid{grid-template-columns:repeat(2,1fr);}
  .feature-card.big{grid-column:span 2;}
  .compare{grid-template-columns:1fr;}
  .cta-band{flex-direction:column;align-items:flex-start;padding:30px 24px;}
  .cta-band .actions{width:100%;}
  .cta-band .actions .btn-dark,.cta-band .actions .btn-ghost{flex:1 1 180px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px;}
}
@media (max-width:767px){
  .section{padding:48px 0;}
  .category-hero{padding:34px 0 36px;}
  .hero-sub{font-size:16px;}
  .feature-grid{grid-template-columns:1fr;}
  .feature-card.big{grid-column:span 1;}
  .feature-card.big .feature-media{aspect-ratio:16/9;}
  .hero-actions .btn-neon,.hero-actions .btn-ghost{flex:1 1 100%;}
}
@media (max-width:575px){
  body{font-size:15.5px;}
  .brand-text{font-size:15px;}
  .brand-text em{font-size:13px;}
  .nav-items{grid-template-columns:1fr;}
  .footer-grid{grid-template-columns:1fr;}
  .point-card,.compare-col{padding:20px;}
  .accordion-button{font-size:15.5px;padding:18px 18px 18px 20px;}
  .accordion-body{padding:0 18px 18px 20px;}
}

/* roulang page: category3 */
:root{
  --primary:#2BE4A6;
  --accent:#FF7A45;
  --violet:#B07BFF;
  --bg:#0F0D1A;
  --bg-alt:#151226;
  --bg-deep:#0B0A14;
  --surface:#1B1730;
  --surface-hover:#221C3B;
  --text:#F4F2FB;
  --text-2:#A79FC4;
  --text-3:#6F6890;
  --border:rgba(255,255,255,.08);
  --border-strong:rgba(43,228,166,.30);
  --radius-card:16px;
  --radius-panel:18px;
  --radius-btn:10px;
  --shadow-card:0 8px 24px rgba(0,0,0,.35);
  --shadow-hover:0 14px 34px rgba(0,0,0,.45);
  --glow:0 0 24px rgba(43,228,166,.18);
  --light:#F7F6FB;
  --light-text:#1B1730;
  --bs-primary:#2BE4A6;
  --bs-body-bg:#0F0D1A;
  --bs-body-color:#F4F2FB;
  --bs-border-radius:12px;
}

*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:-apple-system,"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",Inter,sans-serif;
  font-size:16px;
  line-height:1.75;
  letter-spacing:.01em;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none;transition:color .2s ease}
a:hover{color:var(--primary)}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4{margin:0;line-height:1.3;font-weight:700}
p{margin:0}
button{font-family:inherit}
:focus-visible{outline:2px solid var(--primary);outline-offset:2px;border-radius:6px}

.wrap{max-width:1200px;margin:0 auto;padding:0 20px}
.num{font-variant-numeric:tabular-nums}

/* ---------- Header / Nav ---------- */
.site-header{
  position:sticky;top:0;z-index:100;
  background:rgba(15,13,26,.92);
  backdrop-filter:blur(10px);
  padding:16px 0 12px;
  border-bottom:1px solid var(--border);
}
.header-bar{display:flex;align-items:center;gap:16px;position:relative}

.brand{display:flex;align-items:center;gap:10px;flex-shrink:0}
.brand-mark{
  width:42px;height:42px;border-radius:12px;
  background:var(--surface);border:1px solid var(--border);
  display:grid;place-items:center;
}
.brand.small .brand-mark{width:36px;height:36px;border-radius:10px}
.brand-text{display:flex;flex-direction:column;line-height:1.15}
.brand-text strong{font-size:16px;font-weight:700;letter-spacing:.02em}
.brand-text em{
  font-style:normal;font-size:11px;letter-spacing:.28em;
  color:var(--primary);text-transform:uppercase;
}

.nav-panel{
  flex:1;display:flex;align-items:center;justify-content:space-between;gap:12px;
  background:var(--surface);
  border:1px solid var(--border);
  border-radius:var(--radius-panel);
  padding:8px;
  position:relative;
}
.nav-panel::before{
  content:"";position:absolute;top:-9px;left:16px;right:16px;height:6px;
  border-radius:999px;
  background:linear-gradient(90deg,var(--primary),var(--violet));
  opacity:.75;
}
.nav-items{display:flex;align-items:center;gap:6px;flex-wrap:wrap}
.nav-card{
  display:flex;align-items:center;gap:8px;
  padding:10px 14px;border-radius:12px;
  font-size:14px;color:var(--text-2);
  transition:background .2s ease,color .2s ease,transform .2s ease;
}
.nav-card i{font-size:15px;color:var(--text-3);transition:color .2s ease}
.nav-card:hover{background:rgba(43,228,166,.10);color:var(--primary);transform:translateY(-1px)}
.nav-card:hover i{color:var(--primary)}
.nav-card.is-active{
  background:rgba(43,228,166,.12);
  color:var(--primary);
  box-shadow:inset 2px 0 0 0 var(--primary);
}
.nav-card.is-active i{color:var(--primary)}

.btn-neon{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  background:var(--primary);color:#0B2B20;
  font-size:14px;font-weight:700;
  padding:11px 20px;border-radius:var(--radius-btn);
  border:none;cursor:pointer;
  transition:transform .2s ease,box-shadow .2s ease,background .2s ease;
}
.btn-neon:hover{background:#43eeb5;color:#0B2B20;transform:translateY(-1px);box-shadow:var(--glow)}
.btn-outline{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  background:transparent;color:var(--primary);
  border:1px solid var(--border-strong);
  font-size:14px;font-weight:600;
  padding:11px 20px;border-radius:var(--radius-btn);
  cursor:pointer;transition:background .2s ease,transform .2s ease,color .2s ease;
}
.btn-outline:hover{background:rgba(43,228,166,.10);color:var(--primary);transform:translateY(-1px)}
.btn-dark{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  background:var(--light-text);color:var(--primary);
  font-size:14px;font-weight:700;
  padding:12px 22px;border-radius:var(--radius-btn);
  border:none;cursor:pointer;transition:transform .2s ease,box-shadow .2s ease;
}
.btn-dark:hover{transform:translateY(-1px);box-shadow:0 10px 26px rgba(27,23,48,.28);color:var(--primary)}

.nav-cta{padding:10px 18px;font-size:13px;white-space:nowrap}
.nav-toggle{
  display:none;width:44px;height:44px;border-radius:12px;
  background:var(--surface);border:1px solid var(--border);
  color:var(--text);align-items:center;justify-content:center;font-size:16px;cursor:pointer;
}

/* ---------- Page hero ---------- */
.page-hero{
  position:relative;
  min-height:230px;
  display:flex;align-items:center;
  background-image:linear-gradient(90deg,rgba(11,10,20,.94) 0%,rgba(11,10,20,.72) 55%,rgba(15,13,26,.55) 100%),url('/assets/images/backpic/back-3.webp');
  background-size:cover;
  background-position:center;
  border-bottom:1px solid var(--border);
  padding:36px 0;
}
.page-hero h1{
  font-size:clamp(26px,3.4vw,40px);
  letter-spacing:.01em;
  max-width:760px;
}
.page-hero .lead{
  margin-top:14px;font-size:16px;color:var(--text-2);max-width:640px;
}
.hero-tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:20px}
.pill{
  display:inline-flex;align-items:center;gap:6px;
  padding:5px 12px;border-radius:999px;
  background:rgba(43,228,166,.12);color:var(--primary);
  font-size:13px;line-height:1.4;
}
.pill.orange{background:rgba(255,122,69,.14);color:var(--accent)}
.pill.violet{background:rgba(176,123,255,.16);color:var(--violet)}

.breadcrumb-row{
  display:flex;align-items:center;gap:8px;flex-wrap:wrap;
  font-size:13px;color:var(--text-3);margin-bottom:16px;
}
.breadcrumb-row a{color:var(--text-2)}
.breadcrumb-row a:hover{color:var(--primary)}
.breadcrumb-row .sep{color:var(--text-3);opacity:.7}
.breadcrumb-row .current{color:var(--text-3)}

/* ---------- Sections ---------- */
.section{padding:72px 0}
.section.alt{background:var(--bg-alt)}
.section.deep{background:var(--bg-deep)}
.section-head{margin-bottom:36px;max-width:760px}
.section-head h2{font-size:clamp(23px,2.6vw,31px)}
.section-head p{margin-top:12px;color:var(--text-2);font-size:15px}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12px;letter-spacing:.2em;color:var(--primary);
  text-transform:uppercase;margin-bottom:12px;
}

/* ---------- Stat strip ---------- */
.stat-strip{
  display:grid;grid-template-columns:repeat(4,1fr);gap:24px;
  margin-top:-38px;position:relative;z-index:5;
}
.stat-card{
  background:var(--surface);border:1px solid var(--border);
  border-radius:var(--radius-card);padding:20px 18px;
  transition:transform .2s ease,border-color .2s ease,box-shadow .2s ease;
}
.stat-card:hover{transform:translateY(-3px);border-color:var(--border-strong);box-shadow:var(--shadow-card)}
.stat-card .val{font-size:24px;font-weight:700;color:var(--primary);line-height:1.2}
.stat-card .lbl{font-size:13px;color:var(--text-3);margin-top:6px}

/* ---------- Timeline layout ---------- */
.grid-main{display:grid;grid-template-columns:repeat(12,1fr);gap:24px}
.col-8{grid-column:span 8}
.col-4{grid-column:span 4}
.col-5{grid-column:span 5}
.col-7{grid-column:span 7}

.timeline{position:relative}
.tl-item{position:relative;padding-left:66px;padding-bottom:24px}
.tl-item:last-child{padding-bottom:0}
.tl-item::after{
  content:"";position:absolute;left:19px;top:48px;bottom:-4px;width:2px;
  background:linear-gradient(180deg,rgba(43,228,166,.45),rgba(176,123,255,.18));
}
.tl-item:last-child::after{display:none}
.tl-num{
  position:absolute;left:0;top:0;
  width:40px;height:40px;border-radius:12px;
  background:var(--surface);border:1px solid var(--border-strong);
  color:var(--primary);font-weight:700;font-size:15px;
  display:grid;place-items:center;
  box-shadow:var(--glow);
}
.tl-card{
  background:var(--surface);border:1px solid var(--border);
  border-radius:var(--radius-card);
  padding:22px 22px 20px;
  transition:transform .2s ease,border-color .2s ease,box-shadow .2s ease,background .2s ease;
}
.tl-card:hover{background:var(--surface-hover);transform:translateY(-3px);border-color:var(--border-strong);box-shadow:var(--shadow-hover)}
.tl-card h3{font-size:20px;margin-bottom:10px}
.tl-card p{color:var(--text-2);font-size:15px}
.tl-meta{
  display:flex;flex-wrap:wrap;gap:10px;
  margin-top:14px;padding-top:14px;border-top:1px solid var(--border);
  font-size:13px;color:var(--text-3);
}
.tl-meta span{display:inline-flex;align-items:center;gap:6px}
.tl-meta i{color:var(--primary)}

/* ---------- Sticky CTA card ---------- */
.sticky-wrap{position:sticky;top:100px;display:flex;flex-direction:column;gap:20px}
.panel-card{
  background:var(--surface);border:1px solid var(--border);
  border-radius:var(--radius-panel);padding:24px;
  box-shadow:var(--shadow-card);
}
.panel-card.recommend{border-color:rgba(176,123,255,.45);box-shadow:0 0 26px rgba(176,123,255,.16)}
.panel-card h3{font-size:19px;margin-bottom:8px}
.panel-card .desc{font-size:14px;color:var(--text-2);margin-bottom:18px}
.panel-list{display:flex;flex-direction:column;gap:12px;margin-bottom:20px}
.panel-list li{display:flex;gap:10px;font-size:14px;color:var(--text-2);line-height:1.6}
.panel-list i{color:var(--primary);margin-top:4px;font-size:13px}
.panel-item{
  display:flex;align-items:center;gap:12px;
  padding:12px 14px;border-radius:12px;
  border:1px solid var(--border);background:rgba(255,255,255,.02);
  font-size:14px;color:var(--text-2);
  transition:background .2s ease,color .2s ease,border-color .2s ease;
}
.panel-item:hover{background:rgba(43,228,166,.10);color:var(--primary);border-color:var(--border-strong)}
.panel-item i{color:var(--primary);width:18px;text-align:center}
.full-btn{width:100%}

/* ---------- Prepare block (1 big + 2 small) ---------- */
.prep-grid{display:grid;grid-template-columns:repeat(12,1fr);gap:24px}
.prep-big{
  grid-column:span 7;
  background:var(--surface);border:1px solid var(--border);
  border-radius:var(--radius-panel);overflow:hidden;
  transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.prep-big:hover{transform:translateY(-3px);box-shadow:var(--shadow-hover);border-color:var(--border-strong)}
.prep-big img{width:100%;aspect-ratio:16/9;object-fit:cover}
.prep-big .body{padding:22px}
.prep-big h3{font-size:21px;margin-bottom:10px}
.prep-big p{color:var(--text-2);font-size:15px}
.prep-side{grid-column:span 5;display:flex;flex-direction:column;gap:24px}
.info-card{
  background:var(--surface);border:1px solid var(--border);
  border-radius:var(--radius-card);padding:22px;
  display:flex;gap:16px;flex:1;
  transition:transform .2s ease,border-color .2s ease,background .2s ease,box-shadow .2s ease;
}
.info-card:hover{transform:translateY(-3px);background:var(--surface-hover);border-color:var(--border-strong);box-shadow:var(--shadow-card)}
.info-card .ic{
  flex-shrink:0;width:44px;height:44px;border-radius:12px;
  background:rgba(43,228,166,.12);color:var(--primary);
  display:grid;place-items:center;font-size:17px;
}
.info-card.warm .ic{background:rgba(255,122,69,.14);color:var(--accent)}
.info-card h3{font-size:17px;margin-bottom:8px}
.info-card p{font-size:14px;color:var(--text-2)}

/* ---------- Compare list ---------- */
.compare-grid{display:grid;grid-template-columns:1fr 1fr;gap:24px}
.compare-card{
  background:var(--surface);border:1px solid var(--border);
  border-radius:var(--radius-panel);padding:26px;
}
.compare-card h3{font-size:19px;display:flex;align-items:center;gap:10px;margin-bottom:18px}
.compare-card h3 i{color:var(--primary)}
.compare-card.issue h3 i{color:var(--accent)}
.compare-card li{
  display:flex;gap:12px;align-items:flex-start;
  padding:14px 0;border-bottom:1px solid var(--border);
  font-size:15px;color:var(--text-2);line-height:1.6;
}
.compare-card li:last-child{border-bottom:none;padding-bottom:0}
.compare-card li i{margin-top:5px;font-size:13px;color:var(--primary)}
.compare-card.issue li i{color:var(--accent)}

/* ---------- FAQ ---------- */
.faq-acc .accordion-item{
  background:var(--surface);
  border:1px solid var(--border);
  border-left:3px solid transparent;
  border-radius:var(--radius-card);
  margin-bottom:14px;
  overflow:hidden;
  transition:border-color .2s ease,background .2s ease;
}
.faq-acc .accordion-item:hover{background:var(--surface-hover)}
.faq-acc .accordion-item:has(.accordion-button:not(.collapsed)){border-left-color:var(--primary);border-color:var(--border-strong)}
.faq-acc .accordion-header{margin:0}
.faq-acc .accordion-button{
  background:transparent;color:var(--text);
  font-size:17px;font-weight:600;
  padding:20px 22px;
  box-shadow:none;border:none;
  display:flex;align-items:center;justify-content:space-between;gap:16px;
}
.faq-acc .accordion-button:not(.collapsed){color:var(--primary);background:transparent;box-shadow:none}
.faq-acc .accordion-button:focus{box-shadow:none;outline:2px solid var(--primary);outline-offset:-2px}
.faq-acc .accordion-button::after{
  content:"+";display:grid;place-items:center;
  width:28px;height:28px;flex-shrink:0;margin-left:auto;
  border-radius:50%;border:1px solid var(--border);
  color:var(--primary);font-size:16px;font-weight:700;
  background-image:none;transform:none;
}
.faq-acc .accordion-button:not(.collapsed)::after{
  content:"−";background:rgba(43,228,166,.12);border-color:var(--border-strong);
}
.faq-acc .accordion-body{
  padding:0 22px 22px;color:var(--text-2);font-size:15px;
}

/* ---------- CTA band ---------- */
.cta-band{
  background:var(--light);color:var(--light-text);
  border-radius:20px;padding:36px 34px;
  display:flex;align-items:center;justify-content:space-between;gap:28px;
  box-shadow:0 20px 50px rgba(0,0,0,.35);
}
.cta-band h2{font-size:clamp(21px,2.4vw,27px);color:var(--light-text)}
.cta-band p{margin-top:10px;font-size:15px;color:#4A4568;max-width:640px}

/* ---------- Footer ---------- */
.site-footer{
  background:var(--bg-deep);
  border-top:1px solid var(--border);
  padding:56px 0 26px;
  margin-top:0;
}
.footer-grid{
  display:grid;grid-template-columns:1.4fr 1fr 1fr 1.1fr;gap:32px;
}
.footer-brand p{margin-top:14px;font-size:14px;color:var(--text-3);max-width:320px;line-height:1.7}
.footer-title{font-size:14px;font-weight:700;margin-bottom:14px;color:var(--text)}
.footer-links{display:flex;flex-direction:column;gap:10px}
.footer-links a{font-size:14px;color:var(--text-2)}
.footer-links a:hover{color:var(--primary)}
.footer-contact{display:flex;flex-direction:column;gap:10px}
.footer-contact li{font-size:14px;color:var(--text-2);display:flex;align-items:center;gap:8px}
.footer-contact i{color:var(--primary);font-size:13px}
.footer-bottom{
  margin-top:40px;padding-top:20px;border-top:1px solid var(--border);
  display:flex;justify-content:space-between;gap:14px;flex-wrap:wrap;
  font-size:13px;color:var(--text-3);
}

/* ---------- Responsive ---------- */
@media (max-width:1199px){
  .section{padding:60px 0}
  .nav-card{padding:9px 11px;font-size:13px}
}
@media (max-width:991px){
  .nav-toggle{display:inline-flex}
  .nav-panel{
    position:absolute;top:calc(100% + 12px);left:20px;right:20px;
    display:none;flex-direction:column;align-items:stretch;gap:12px;
    padding:14px;box-shadow:var(--shadow-hover);
  }
  .nav-panel.is-open{display:flex}
  .nav-panel::before{display:none}
  .nav-items{display:grid;grid-template-columns:1fr 1fr;gap:10px}
  .nav-card{
    flex-direction:column;align-items:flex-start;gap:8px;
    padding:14px;background:rgba(255,255,255,.02);
    border:1px solid var(--border);
  }
  .nav-card i{font-size:17px}
  .nav-cta{width:100%}
  .header-bar{justify-content:space-between}
  .brand{order:1}
  .nav-toggle{order:3}
  .nav-panel{order:4}

  .stat-strip{grid-template-columns:repeat(2,1fr);margin-top:-24px}
  .grid-main{grid-template-columns:1fr}
  .col-8,.col-4,.col-5,.col-7{grid-column:span 1}
  .sticky-wrap{position:static}
  .prep-grid{grid-template-columns:1fr}
  .prep-big,.prep-side{grid-column:span 1}
  .compare-grid{grid-template-columns:1fr}
  .cta-band{flex-direction:column;align-items:flex-start}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px}
}
@media (max-width:575px){
  .section{padding:46px 0}
  .page-hero{padding:28px 0;min-height:auto}
  .stat-strip{grid-template-columns:1fr;gap:14px}
  .stat-card{padding:16px}
  .tl-item{padding-left:56px}
  .tl-card{padding:18px}
  .tl-card h3{font-size:18px}
  .cta-band{padding:26px 20px}
  .cta-band .btn-dark{width:100%}
  .footer-grid{grid-template-columns:1fr}
  .nav-items{grid-template-columns:1fr}
  .btn-neon,.btn-outline{width:100%}
  .breadcrumb-row{font-size:12px}
}