/* roulang page: index */
:root{
  --bg-0:#0E1013;
  --bg-1:#161A1F;
  --bg-2:#1F252C;
  --line:#262D35;
  --text:#E9EEF3;
  --text-dim:#98A4B2;
  --primary:#17D89A;
  --primary-deep:#0FB37F;
  --accent:#FF4F87;
  --amber:#FFC24B;
  --read-bg:#F7F5F0;
  --read-text:#1A1E23;
  --grad:linear-gradient(100deg,#17D89A 0%,#FF4F87 100%);
  --r-xl:28px;
  --r-lg:24px;
  --r-md:18px;
  --r-sm:14px;
  --shadow:0 18px 40px rgba(0,0,0,.45), inset 0 0 0 1px rgba(255,255,255,.06);
  --shadow-hi:0 26px 54px rgba(0,0,0,.55), inset 0 0 0 1px rgba(255,255,255,.10);
  --ease:cubic-bezier(.2,.7,.3,1);
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  background:var(--bg-0);
  color:var(--text);
  font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,sans-serif;
  font-size:16px;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{color:var(--primary);text-decoration:none;text-underline-offset:4px}
a:hover{text-decoration:underline}
button,input,textarea,select{font:inherit;color:inherit}
h1,h2,h3,h4,p{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
:focus-visible{outline:2px solid var(--primary);outline-offset:2px;border-radius:6px}
.num{font-variant-numeric:tabular-nums;letter-spacing:.01em}

.container{width:100%;max-width:1200px;margin:0 auto;padding:0 32px}
.section{padding:96px 0}
.section--tight{padding:68px 0}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:40px;flex-wrap:wrap}
.section-head h2{font-size:clamp(24px,3vw,34px);font-weight:700;letter-spacing:-.01em;line-height:1.25}
.section-head .lead{margin-top:10px;color:var(--text-dim);font-size:15px;max-width:640px}
.section-tag{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12px;letter-spacing:.06em;color:var(--primary);
  border:1px solid rgba(23,216,154,.35);
  background:rgba(23,216,154,.08);
  padding:5px 12px;border-radius:999px;margin-bottom:14px;
}
.section-tag::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--grad)}
.link-more{font-size:14px;color:var(--text-dim);border-bottom:1px solid var(--line);padding-bottom:3px}
.link-more:hover{color:var(--primary);border-color:var(--primary);text-decoration:none}

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(14,16,19,.86);
  border-bottom:1px solid transparent;
  transition:background .22s var(--ease),border-color .22s var(--ease);
}
.site-header.is-scrolled{background:rgba(14,16,19,.94);border-bottom-color:var(--line)}
.nav-top{display:flex;align-items:center;gap:24px;padding:14px 0}
.brand{display:flex;align-items:center;gap:12px;color:var(--text);flex-shrink:0}
.brand:hover{text-decoration:none}
.brand-mark{
  width:42px;height:42px;border-radius:14px;display:grid;place-items:center;
  background:var(--grad);color:#0B0D10;font-weight:800;font-size:19px;
  box-shadow:0 10px 24px rgba(23,216,154,.25);
}
.brand-text{display:flex;flex-direction:column;line-height:1.2}
.brand-text strong{font-size:16px;font-weight:800;letter-spacing:.01em;white-space:nowrap}
.brand-text em{font-style:normal;font-size:11.5px;color:var(--text-dim);letter-spacing:.04em;white-space:nowrap}
.nav-search{
  flex:1;max-width:620px;height:46px;display:flex;align-items:center;gap:10px;
  background:var(--bg-1);border:1px solid var(--line);border-radius:999px;
  padding:0 6px 0 16px;transition:border-color .22s var(--ease),box-shadow .22s var(--ease);
}
.nav-search:focus-within{border-color:rgba(23,216,154,.55);box-shadow:0 0 0 3px rgba(23,216,154,.10)}
.search-ic{width:18px;height:18px;flex-shrink:0;stroke:var(--text-dim);fill:none;stroke-width:1.8}
.nav-search input{
  flex:1;background:transparent;border:0;outline:none;font-size:14.5px;color:var(--text);min-width:0;
}
.nav-search input::placeholder{color:#6E7B89}
.search-btn{
  border:0;cursor:pointer;height:34px;padding:0 18px;border-radius:999px;
  background:var(--grad);color:#0B0D10;font-weight:700;font-size:13.5px;
  transition:filter .2s var(--ease),transform .12s var(--ease);
}
.search-btn:hover{filter:brightness(1.08)}
.search-btn:active{transform:translateY(1px)}
.nav-actions{display:flex;align-items:center;gap:10px;flex-shrink:0}
.nav-toggle{
  display:none;width:42px;height:42px;border-radius:12px;background:var(--bg-1);
  border:1px solid var(--line);cursor:pointer;color:var(--text);font-size:18px;line-height:1;
}
.nav-pills{display:flex;align-items:center;gap:10px;padding:0 0 14px;flex-wrap:wrap}
.pill-link{
  font-size:13px;color:var(--text-dim);padding:7px 15px;border-radius:999px;
  border:1px solid var(--line);background:var(--bg-1);letter-spacing:.02em;
  transition:color .2s var(--ease),border-color .2s var(--ease),background .2s var(--ease);
}
.pill-link:hover{color:var(--text);border-color:#38424D;text-decoration:none}
.pill-link.is-active{
  color:var(--primary);border-color:transparent;
  background:linear-gradient(var(--bg-1),var(--bg-1)) padding-box,var(--grad) border-box;
  border:1px solid transparent;
}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  border-radius:999px;border:1px solid transparent;cursor:pointer;
  font-weight:700;font-size:14.5px;padding:13px 26px;
  transition:filter .2s var(--ease),transform .12s var(--ease),border-color .2s var(--ease),background .2s var(--ease),color .2s var(--ease);
  white-space:nowrap;
}
.btn:hover{text-decoration:none}
.btn-grad{background:var(--grad);color:#0B0D10;box-shadow:0 12px 30px rgba(255,79,135,.18)}
.btn-grad:hover{filter:brightness(1.08)}
.btn-ghost{background:transparent;color:var(--text);border-color:var(--line);border-radius:14px}
.btn-ghost:hover{border-color:rgba(23,216,154,.6);color:var(--primary);filter:brightness(1.05)}
.btn-outline{background:var(--bg-1);color:var(--text);border-color:var(--line)}
.btn-outline:hover{border-color:rgba(23,216,154,.55);color:var(--primary)}
.btn-sm{padding:9px 18px;font-size:13px}
.btn:active{transform:translateY(1px)}
.btn[disabled]{opacity:.5;cursor:not-allowed}

/* ---------- hero ---------- */
.hero{padding:64px 0 88px;position:relative;overflow:hidden}
.hero::before{
  content:"";position:absolute;inset:0;
  background:radial-gradient(900px 420px at 12% 0%,rgba(23,216,154,.12),transparent 62%),
             radial-gradient(700px 380px at 88% 18%,rgba(255,79,135,.10),transparent 65%);
  pointer-events:none;
}
.hero-grid{position:relative;display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:center}
.hero-copy{max-width:620px}
.hero-kicker{display:inline-flex;align-items:center;gap:8px;font-size:12.5px;letter-spacing:.06em;color:var(--amber);background:rgba(255,194,75,.10);border:1px solid rgba(255,194,75,.28);padding:6px 14px;border-radius:999px}
.hero h1{
  margin-top:20px;
  font-size:clamp(30px,5vw,54px);
  font-weight:800;line-height:1.15;letter-spacing:-.01em;
}
.hero h1 .hl{background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent}
.hero-sub{margin-top:18px;font-size:16.5px;color:var(--text-dim);max-width:560px}
.hero-cta{display:flex;gap:14px;margin-top:30px;flex-wrap:wrap}
.badge-row{display:flex;gap:10px;margin-top:34px;flex-wrap:wrap}
.badge{
  display:inline-flex;align-items:center;gap:8px;font-size:12.5px;letter-spacing:.02em;
  padding:8px 14px;border-radius:999px;background:rgba(23,216,154,.09);
  border:1px solid rgba(23,216,154,.28);color:var(--text-dim);
}
.badge b{color:var(--text);font-weight:800;font-variant-numeric:tabular-nums}
.badge.amber{background:rgba(255,194,75,.09);border-color:rgba(255,194,75,.28)}
.hero-visual{position:relative}
.hero-visual img{
  width:100%;height:440px;object-fit:cover;border-radius:var(--r-xl);
  box-shadow:var(--shadow);
}
.hero-visual::after{
  content:"";position:absolute;inset:0;border-radius:var(--r-xl);pointer-events:none;
  background:linear-gradient(100deg,rgba(14,16,19,.86) 0%,rgba(14,16,19,.42) 46%,rgba(14,16,19,.05) 100%);
}
.hero-float{
  position:absolute;left:22px;bottom:22px;z-index:2;
  background:rgba(14,16,19,.82);border:1px solid var(--line);border-radius:var(--r-md);
  padding:14px 18px;backdrop-filter:none;max-width:250px;
}
.hero-float strong{display:block;font-size:14px;margin-bottom:4px}
.hero-float span{font-size:12.5px;color:var(--text-dim);line-height:1.6}

/* ---------- timeline ---------- */
.timeline{display:grid;grid-template-columns:repeat(5,1fr);gap:20px;position:relative;margin-top:8px}
.timeline::before{
  content:"";position:absolute;left:8%;right:8%;top:19px;height:2px;background:var(--grad);opacity:.45;
}
.tl-step{position:relative;padding-top:52px}
.tl-dot{
  position:absolute;top:0;left:0;width:40px;height:40px;border-radius:50%;
  display:grid;place-items:center;font-size:14px;font-weight:800;font-variant-numeric:tabular-nums;
  background:var(--bg-2);border:1px solid var(--line);color:var(--text-dim);
}
.tl-step h3{font-size:17px;font-weight:600;margin-bottom:8px}
.tl-step p{font-size:14.5px;color:var(--text-dim)}
.tl-step.is-current .tl-dot{
  transform:scale(1.15);
  background:#141A1F;border:2px solid var(--accent);color:var(--accent);
  box-shadow:0 0 0 6px rgba(255,79,135,.12);
}
.tl-step.is-current h3{color:var(--accent)}

/* ---------- bento ---------- */
.bento{display:grid;grid-template-columns:repeat(12,1fr);gap:24px}
.bento-card{
  position:relative;background:var(--bg-1);border-radius:var(--r-lg);
  padding:28px;box-shadow:var(--shadow);overflow:hidden;
  transition:transform .22s var(--ease),box-shadow .22s var(--ease);
}
.bento-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-hi)}
.bento-card::after{
  content:"";position:absolute;inset:0;border-radius:var(--r-lg);pointer-events:none;
  border:1px solid transparent;transition:border-color .22s var(--ease);
}
.bento-card:hover::after{border-color:rgba(23,216,154,.45)}
.bento-card .label{display:inline-block;font-size:12px;letter-spacing:.06em;color:var(--primary);background:rgba(23,216,154,.10);border:1px solid rgba(23,216,154,.28);padding:5px 12px;border-radius:999px;margin-bottom:16px}
.bento-card h3{font-size:19px;font-weight:600;margin-bottom:10px}
.bento-card p{font-size:14.8px;color:var(--text-dim)}
.b-1{grid-column:span 7}
.b-2{grid-column:span 5}
.b-3{grid-column:span 5}
.b-4{grid-column:span 7}
.bento-media{display:grid;grid-template-columns:1.05fr .95fr;gap:24px;align-items:center}
.bento-media img{width:100%;height:230px;object-fit:cover;border-radius:var(--r-md)}
.bento-stat{display:flex;gap:26px;margin-top:22px;flex-wrap:wrap}
.bento-stat div{font-size:13px;color:var(--text-dim)}
.bento-stat b{display:block;font-size:24px;font-weight:800;color:var(--text);font-variant-numeric:tabular-nums;letter-spacing:-.01em}
.bento-list{margin-top:18px;display:grid;gap:10px}
.bento-list li{font-size:14.5px;color:var(--text-dim);padding-left:20px;position:relative}
.bento-list li::before{content:"";position:absolute;left:0;top:9px;width:9px;height:9px;border-radius:50%;background:var(--grad);opacity:.85}

/* ---------- tiers ---------- */
.tier-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px;align-items:stretch;padding-top:18px}
.tier{
  position:relative;display:flex;flex-direction:column;background:var(--bg-1);
  border-radius:var(--r-lg);padding:30px 26px 26px;box-shadow:var(--shadow);
  transition:transform .22s var(--ease),box-shadow .22s var(--ease);
}
.tier:hover{transform:translateY(-4px);box-shadow:var(--shadow-hi)}
.tier--pick{transform:translateY(-8px);border:1px solid rgba(255,79,135,.55);box-shadow:0 26px 54px rgba(255,79,135,.14), inset 0 0 0 1px rgba(255,79,135,.18)}
.tier--pick:hover{transform:translateY(-12px)}
.tier-flag{
  position:absolute;top:-13px;left:50%;transform:translateX(-50%);
  background:var(--grad);color:#0B0D10;font-size:12px;font-weight:800;letter-spacing:.06em;
  padding:5px 16px;border-radius:999px;white-space:nowrap;
}
.tier h3{font-size:20px;font-weight:700}
.tier .tier-note{font-size:13.5px;color:var(--text-dim);margin-top:6px}
.tier-price{display:flex;align-items:baseline;gap:8px;margin:20px 0 4px}
.tier-price b{font-size:34px;font-weight:800;font-variant-numeric:tabular-nums;letter-spacing:-.02em}
.tier-price span{font-size:13px;color:var(--text-dim)}
.tier-feats{margin:22px 0 26px;display:grid;gap:12px}
.tier-feats li{display:flex;align-items:flex-start;gap:10px;font-size:14.5px;color:var(--text)}
.tier-feats li.off{color:#6B767F}
.tier-feats .mk{width:18px;flex-shrink:0;text-align:center;font-weight:800}
.tier-feats li .mk{color:var(--primary)}
.tier-feats li.off .mk{color:#4E5760}
.tier .btn{width:100%;margin-top:auto}

/* ---------- news ---------- */
.news-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.news-card{
  display:flex;flex-direction:column;background:var(--bg-1);border-radius:var(--r-md);
  overflow:hidden;box-shadow:var(--shadow);color:var(--text);
  transition:transform .22s var(--ease),box-shadow .22s var(--ease);
}
.news-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-hi);text-decoration:none}
.news-thumb{display:block;aspect-ratio:16/10;overflow:hidden;background:var(--bg-2)}
.news-thumb img{width:100%;height:100%;object-fit:cover}
.news-body{padding:20px 22px 22px;display:flex;flex-direction:column;gap:12px;flex:1}
.news-top{display:flex;align-items:center;justify-content:space-between;gap:12px}
.pill{
  font-size:12px;letter-spacing:.04em;color:var(--primary);
  background:rgba(23,216,154,.10);border:1px solid rgba(23,216,154,.28);
  padding:4px 11px;border-radius:999px;white-space:nowrap;
}
.news-time{font-size:12.5px;color:var(--text-dim);font-variant-numeric:tabular-nums;white-space:nowrap}
.news-title{font-size:17.5px;font-weight:600;line-height:1.5;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.news-desc{font-size:14.5px;color:var(--text-dim);display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden}
.news-more{margin-top:auto;font-size:13.5px;color:var(--primary)}
.news-card--lead{grid-column:1 / -1;flex-direction:row}
.news-card--lead .news-thumb{width:46%;aspect-ratio:auto;min-height:260px}
.news-card--lead .news-body{padding:32px 34px}
.news-card--lead .news-title{font-size:23px;-webkit-line-clamp:2}
.news-card--lead .news-desc{font-size:15px;-webkit-line-clamp:3}
.news-empty{
  grid-column:1 / -1;text-align:center;background:var(--bg-1);border:1px dashed var(--line);
  border-radius:var(--r-lg);padding:56px 28px;
}
.news-empty .ico{width:52px;height:52px;margin:0 auto 16px;border-radius:50%;display:grid;place-items:center;background:var(--bg-2);color:var(--text-dim);font-size:22px}
.news-empty h3{font-size:18px;font-weight:600;margin-bottom:8px}
.news-empty p{color:var(--text-dim);font-size:14.5px;margin-bottom:22px}
.news-pager{display:flex;justify-content:center;gap:10px;margin-top:38px}
.news-pager a,.news-pager span{
  min-width:40px;height:40px;padding:0 14px;display:inline-flex;align-items:center;justify-content:center;
  border-radius:12px;border:1px solid var(--line);background:var(--bg-1);color:var(--text-dim);font-size:14px;
}
.news-pager .is-current{background:var(--grad);color:#0B0D10;border-color:transparent;font-weight:700}
.news-pager a:hover{color:var(--primary);border-color:rgba(23,216,154,.5);text-decoration:none}

/* ---------- faq ---------- */
.faq-wrap{display:grid;gap:14px;max-width:900px}
.faq-item{
  background:var(--bg-1);border-radius:var(--r-md);box-shadow:var(--shadow);
  overflow:hidden;position:relative;transition:box-shadow .22s var(--ease);
}
.faq-item::before{
  content:"";position:absolute;left:0;top:0;bottom:0;width:2px;background:var(--grad);
  opacity:0;transition:opacity .22s var(--ease);
}
.faq-item[open]::before{opacity:1}
.faq-item summary{
  list-style:none;cursor:pointer;padding:20px 58px 20px 24px;position:relative;
  font-size:16px;font-weight:600;line-height:1.6;
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{
  content:"+";position:absolute;right:22px;top:50%;transform:translateY(-50%);
  width:26px;height:26px;border-radius:50%;display:grid;place-items:center;
  background:var(--bg-2);color:var(--primary);font-size:16px;font-weight:700;
  transition:transform .22s var(--ease),background .22s var(--ease);
}
.faq-item[open] summary::after{content:"×";transform:translateY(-50%) rotate(0deg);background:rgba(255,79,135,.16);color:var(--accent)}
.faq-item .faq-body{padding:0 24px 22px;color:var(--text-dim);font-size:14.8px}

/* ---------- cta ---------- */
.cta-panel{
  position:relative;border-radius:var(--r-xl);overflow:hidden;
  background:var(--bg-1);box-shadow:var(--shadow);
  display:grid;grid-template-columns:1.05fr .95fr;gap:40px;
  padding:52px;
}
.cta-panel::before{
  content:"";position:absolute;inset:0;pointer-events:none;
  background:radial-gradient(620px 320px at 8% 0%,rgba(23,216,154,.14),transparent 60%),
             radial-gradient(520px 300px at 92% 100%,rgba(255,79,135,.12),transparent 62%);
}
.cta-left,.cta-form{position:relative}
.cta-left h2{font-size:clamp(24px,3vw,32px);font-weight:700;line-height:1.3}
.cta-left p{margin-top:14px;color:var(--text-dim);font-size:15px}
.cta-points{margin-top:24px;display:grid;gap:12px}
.cta-points li{display:flex;gap:10px;align-items:flex-start;font-size:14.8px;color:var(--text)}
.cta-points .dot{width:8px;height:8px;border-radius:50%;background:var(--grad);margin-top:9px;flex-shrink:0}
.form-card{background:var(--bg-2);border:1px solid var(--line);border-radius:var(--r-lg);padding:28px}
.field{display:grid;gap:8px;margin-bottom:16px}
.field label{font-size:13px;color:var(--text-dim);letter-spacing:.02em}
.field input,.field textarea{
  width:100%;background:var(--bg-1);border:1px solid var(--line);border-radius:14px;
  padding:13px 16px;font-size:14.5px;color:var(--text);outline:none;
  transition:border-color .2s var(--ease),box-shadow .2s var(--ease);
}
.field textarea{min-height:96px;border-radius:14px;resize:vertical}
.field input:focus,.field textarea:focus{border-color:rgba(23,216,154,.55);box-shadow:0 0 0 3px rgba(23,216,154,.10)}
.field input::placeholder,.field textarea::placeholder{color:#6E7B89}
.form-note{font-size:12.5px;color:var(--text-dim);margin-top:12px;line-height:1.7}
.form-ok{
  display:none;margin-top:16px;padding:14px 16px;border-radius:14px;font-size:14px;
  background:rgba(23,216,154,.10);border:1px solid rgba(23,216,154,.35);color:var(--primary);
}
.form-ok.is-on{display:block}

/* ---------- footer ---------- */
.site-footer{border-top:1px solid var(--line);background:#0B0D10;padding:64px 0 26px;margin-top:24px}
.foot-grid{display:grid;grid-template-columns:1.3fr 1fr 1fr;gap:40px}
.foot-brand{display:flex;align-items:center;gap:12px;margin-bottom:16px}
.foot-brand .brand-mark{width:38px;height:38px;font-size:17px;border-radius:12px}
.foot-brand strong{font-size:15.5px;font-weight:800}
.foot-about{font-size:14px;color:var(--text-dim);max-width:380px}
.foot-col h4{font-size:14px;font-weight:700;margin-bottom:16px;letter-spacing:.02em}
.foot-col ul{display:grid;gap:10px}
.foot-col a{color:var(--text-dim);font-size:14px}
.foot-col a:hover{color:var(--primary)}
.foot-col li span{color:var(--text-dim);font-size:14px}
.foot-bottom{
  margin-top:44px;padding-top:20px;border-top:1px solid var(--line);
  display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13px;color:#6E7B89;
}
.foot-bottom a{color:#6E7B89}
.foot-bottom a:hover{color:var(--primary)}

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

/* ---------- responsive ---------- */
@media (max-width:1024px){
  .container{padding:0 24px}
  .section{padding:76px 0}
  .nav-top{flex-wrap:wrap;gap:14px}
  .nav-toggle{display:inline-flex;align-items:center;justify-content:center}
  .nav-search{order:3;flex-basis:100%;max-width:100%}
  .nav-actions{margin-left:auto}
  .nav-pills{display:none}
  .nav-pills.is-open{display:flex;flex-direction:column;align-items:stretch;padding-bottom:16px}
  .pill-link{text-align:center;padding:10px 15px}
  .hero-grid{grid-template-columns:1fr;gap:36px}
  .hero-visual img{height:320px}
  .timeline{grid-template-columns:repeat(3,1fr);gap:24px}
  .timeline::before{display:none}
  .b-1,.b-2,.b-3,.b-4{grid-column:span 12}
  .bento-media{grid-template-columns:1fr}
  .bento-media img{height:200px}
  .tier-grid{grid-template-columns:1fr;gap:20px}
  .tier--pick{transform:none}
  .tier--pick:hover{transform:translateY(-4px)}
  .news-grid{grid-template-columns:repeat(2,1fr)}
  .news-card--lead{flex-direction:column}
  .news-card--lead .news-thumb{width:100%;min-height:0;aspect-ratio:16/10}
  .news-card--lead .news-body{padding:24px}
  .cta-panel{grid-template-columns:1fr;padding:38px}
  .foot-grid{grid-template-columns:1fr 1fr;gap:32px}
}
@media (max-width:768px){
  .section{padding:62px 0}
  .section-head{margin-bottom:28px}
  .hero{padding:44px 0 64px}
  .hero-sub{font-size:15.5px}
  .hero-cta .btn{flex:1 1 auto}
  .timeline{grid-template-columns:1fr;gap:26px}
  .timeline::before{display:block;left:19px;right:auto;top:12px;bottom:12px;width:2px;height:auto}
  .tl-step{padding-top:0;padding-left:60px;min-height:44px}
  .tl-dot{top:0}
  .news-grid{grid-template-columns:1fr}
  .foot-grid{grid-template-columns:1fr}
  .brand-text em{display:none}
}
@media (max-width:520px){
  .container{padding:0 20px}
  .section{padding:52px 0}
  .brand-text strong{font-size:15px}
  .nav-search{height:44px}
  .search-btn{padding:0 14px}
  .hero-visual img{height:250px}
  .hero-float{left:14px;right:14px;bottom:14px;max-width:none}
  .cta-panel{padding:26px}
  .form-card{padding:22px}
  .bento-card{padding:22px}
  .tier{padding:26px 22px 22px}
  .badge{font-size:12px}
}

/* roulang page: category1 */
:root{
    --bg-0:#0E1013;
    --bg-1:#161A1F;
    --bg-2:#1F252C;
    --line:#262D35;
    --text:#E9EEF3;
    --text-dim:#98A4B2;
    --primary:#17D89A;
    --primary-deep:#0FB37F;
    --accent:#FF4F87;
    --amber:#FFC24B;
    --grad:linear-gradient(100deg,#17D89A 0%,#FF4F87 100%);
    --radius-lg:24px;
    --radius-md:20px;
    --radius-sm:14px;
    --shadow:0 18px 40px rgba(0,0,0,.45);
    --shadow-inset:inset 0 0 0 1px rgba(255,255,255,.06);
    --ease:cubic-bezier(.2,.7,.3,1);
  }
  *,*::before,*::after{box-sizing:border-box;}
  html{-webkit-text-size-adjust:100%;}
  body{
    margin:0;
    background:var(--bg-0);
    color:var(--text);
    font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC",system-ui,sans-serif;
    font-size:16px;
    line-height:1.75;
    -webkit-font-smoothing:antialiased;
  }
  img{max-width:100%;display:block;}
  a{color:inherit;text-decoration:none;}
  button,input,textarea{font:inherit;color:inherit;}
  a:focus-visible,button:focus-visible,input:focus-visible,textarea:focus-visible,summary:focus-visible{
    outline:2px solid var(--primary);
    outline-offset:2px;
    border-radius:8px;
  }
  .container{max-width:1200px;margin:0 auto;padding:0 32px;}
  .num{font-variant-numeric:tabular-nums;}

  /* ---------- Header / Nav ---------- */
  .site-header{
    position:sticky;top:0;z-index:60;
    background:rgba(14,16,19,.9);
    border-bottom:1px solid transparent;
    transition:border-color .22s var(--ease),box-shadow .22s var(--ease),background .22s var(--ease);
  }
  .site-header.is-scrolled{
    border-bottom-color:var(--line);
    box-shadow:0 12px 30px rgba(0,0,0,.45);
  }
  .nav-top{
    display:grid;
    grid-template-columns:auto minmax(0,1fr) auto;
    align-items:center;
    gap:22px;
    padding:14px 0 10px;
  }
  .brand{display:flex;align-items:center;gap:12px;min-width:0;}
  .brand-mark{
    width:42px;height:42px;flex:0 0 42px;
    border-radius:13px;
    background:var(--grad);
    color:#08120E;
    font-weight:800;font-size:20px;
    display:grid;place-items:center;
    box-shadow:0 8px 20px rgba(23,216,154,.22);
  }
  .brand-text{min-width:0;}
  .brand-text strong{display:block;font-size:16px;font-weight:700;letter-spacing:.01em;white-space:nowrap;}
  .brand-text em{display:block;font-style:normal;font-size:12px;color:var(--text-dim);letter-spacing:.02em;white-space:nowrap;}
  .nav-search{
    display:flex;align-items:center;gap:10px;
    max-width:620px;width:100%;margin:0 auto;
    height:46px;padding:0 6px 0 16px;
    background:var(--bg-1);
    border:1px solid var(--line);
    border-radius:999px;
    transition:border-color .2s var(--ease),box-shadow .2s var(--ease);
  }
  .nav-search:hover{border-color:#323b45;}
  .nav-search:focus-within{border-color:rgba(23,216,154,.6);box-shadow:0 0 0 3px rgba(23,216,154,.12);}
  .search-ic{width:18px;height:18px;flex:0 0 18px;stroke:var(--text-dim);stroke-width:2;fill:none;stroke-linecap:round;}
  .nav-search input{
    flex:1 1 auto;min-width:0;height:100%;
    background:transparent;border:0;outline:none;
    font-size:14px;color:var(--text);
  }
  .nav-search input::placeholder{color:#6d7885;}
  .search-btn{
    flex:0 0 auto;height:34px;padding:0 18px;
    border:0;border-radius:999px;
    background:var(--grad);color:#08120E;
    font-size:13px;font-weight:700;letter-spacing:.03em;
    cursor:pointer;
    transition:filter .2s var(--ease),transform .12s var(--ease);
  }
  .search-btn:hover{filter:brightness(1.08);}
  .search-btn:active{transform:translateY(1px);}
  .nav-actions{display:flex;align-items:center;gap:10px;}
  .btn{
    display:inline-flex;align-items:center;justify-content:center;gap:8px;
    border-radius:999px;
    font-weight:600;letter-spacing:.02em;
    border:1px solid transparent;
    cursor:pointer;
    transition:filter .2s var(--ease),transform .12s var(--ease),border-color .2s var(--ease),color .2s var(--ease),background .2s var(--ease);
    white-space:nowrap;
  }
  .btn-sm{height:38px;padding:0 18px;font-size:13px;}
  .btn-grad{background:var(--grad);color:#08120E;font-weight:700;}
  .btn-grad:hover{filter:brightness(1.08);}
  .btn-grad:active{transform:translateY(1px);}
  .btn-ghost{background:transparent;border-color:var(--line);color:var(--text);}
  .btn-ghost:hover{border-color:rgba(23,216,154,.65);color:var(--primary);}
  .nav-toggle{
    display:none;width:38px;height:38px;
    background:var(--bg-1);border:1px solid var(--line);border-radius:12px;
    color:var(--text);font-size:16px;cursor:pointer;
  }
  .nav-pills{
    display:flex;gap:10px;flex-wrap:wrap;
    padding:0 0 14px;
  }
  .pill-link{
    display:inline-flex;align-items:center;
    height:34px;padding:0 16px;
    border-radius:999px;
    border:1px solid var(--line);
    background:var(--bg-1);
    color:var(--text-dim);
    font-size:13px;font-weight:500;letter-spacing:.02em;
    transition:color .2s var(--ease),border-color .2s var(--ease),background .2s var(--ease);
  }
  .pill-link:hover{color:var(--text);border-color:#333c46;}
  .pill-link.is-active{
    color:var(--primary);
    background:linear-gradient(100deg,rgba(23,216,154,.14),rgba(255,79,135,.14));
    border-color:transparent;
    box-shadow:inset 0 0 0 1px rgba(23,216,154,.55);
  }

  /* ---------- Section base ---------- */
  .section{padding:84px 0;}
  .section-sm{padding:60px 0;}
  .eyebrow{
    display:inline-flex;align-items:center;gap:8px;
    font-size:12px;font-weight:600;letter-spacing:.08em;
    color:var(--primary);text-transform:uppercase;
  }
  .eyebrow::before{content:"";width:22px;height:2px;border-radius:2px;background:var(--grad);}
  .h2{font-size:clamp(24px,3vw,34px);font-weight:700;letter-spacing:-.01em;line-height:1.25;margin:14px 0 12px;}
  .lead{color:var(--text-dim);font-size:15.5px;max-width:720px;}

  /* ---------- Hero ---------- */
  .hero{
    position:relative;
    padding:52px 0 20px;
    overflow:hidden;
  }
  .hero::before{
    content:"";position:absolute;inset:-30% -20% auto -20%;height:460px;
    background:radial-gradient(60% 60% at 30% 40%,rgba(23,216,154,.16),transparent 70%),
               radial-gradient(50% 50% at 80% 20%,rgba(255,79,135,.14),transparent 70%);
    pointer-events:none;
  }
  .hero-grid{
    position:relative;
    display:grid;grid-template-columns:1.15fr .85fr;gap:36px;align-items:center;
  }
  .crumb{font-size:12.5px;color:var(--text-dim);display:flex;gap:8px;align-items:center;margin-bottom:16px;flex-wrap:wrap;}
  .crumb a:hover{color:var(--primary);}
  .crumb span.sep{color:#4b555f;}
  .hero h1{
    font-size:clamp(28px,4.2vw,46px);
    font-weight:800;line-height:1.16;letter-spacing:-.01em;
    margin:0 0 16px;
  }
  .hero h1 .hl{
    background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent;
  }
  .hero-sub{color:var(--text-dim);font-size:15.5px;max-width:600px;margin:0 0 22px;}
  .hero-badges{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:26px;}
  .badge{
    display:inline-flex;align-items:center;gap:8px;
    height:34px;padding:0 14px;border-radius:999px;
    background:rgba(23,216,154,.1);
    box-shadow:inset 0 0 0 1px rgba(23,216,154,.28);
    font-size:12.5px;color:var(--text-dim);letter-spacing:.02em;
  }
  .badge b{color:var(--text);font-weight:700;font-variant-numeric:tabular-nums;}
  .badge.amber{background:rgba(255,194,75,.1);box-shadow:inset 0 0 0 1px rgba(255,194,75,.3);}
  .hero-cta{display:flex;flex-wrap:wrap;gap:12px;}
  .btn-lg{height:48px;padding:0 26px;font-size:14.5px;}
  .hero-media{
    position:relative;border-radius:28px;overflow:hidden;
    aspect-ratio:16/11;
    box-shadow:var(--shadow),var(--shadow-inset);
  }
  .hero-media img{width:100%;height:100%;object-fit:cover;}
  .hero-media::after{
    content:"";position:absolute;inset:0;
    background:linear-gradient(90deg,rgba(14,16,19,.85) 0%,rgba(14,16,19,.25) 55%,rgba(255,79,135,.18) 100%);
  }
  .hero-media .media-tag{
    position:absolute;left:18px;bottom:18px;z-index:2;
    display:inline-flex;align-items:center;gap:8px;
    height:32px;padding:0 14px;border-radius:999px;
    background:rgba(14,16,19,.72);
    box-shadow:inset 0 0 0 1px rgba(255,255,255,.12);
    font-size:12.5px;color:var(--text);
  }

  /* ---------- Compare panel ---------- */
  .compare{
    display:grid;grid-template-columns:1fr 1fr;gap:20px;
  }
  .compare-card{
    position:relative;
    background:var(--bg-1);
    border-radius:var(--radius-md);
    padding:26px 24px;
    box-shadow:var(--shadow),var(--shadow-inset);
    transition:transform .22s var(--ease),box-shadow .22s var(--ease);
  }
  .compare-card:hover{transform:translateY(-4px);box-shadow:0 24px 50px rgba(0,0,0,.55),var(--shadow-inset);}
  .compare-card.hot{box-shadow:0 0 0 1px rgba(255,79,135,.5),var(--shadow);}
  .compare-head{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:6px;}
  .compare-head h3{margin:0;font-size:18px;font-weight:600;}
  .tag{
    display:inline-flex;align-items:center;height:24px;padding:0 10px;border-radius:999px;
    font-size:11.5px;font-weight:600;letter-spacing:.06em;
    background:rgba(23,216,154,.12);color:var(--primary);
    box-shadow:inset 0 0 0 1px rgba(23,216,154,.3);
  }
  .tag.pink{background:rgba(255,79,135,.12);color:#FF8FB2;box-shadow:inset 0 0 0 1px rgba(255,79,135,.35);}
  .compare-card p{color:var(--text-dim);font-size:14.5px;margin:8px 0 16px;}
  .check-list{list-style:none;padding:0;margin:0;display:grid;gap:10px;}
  .check-list li{display:flex;gap:10px;align-items:flex-start;font-size:14.5px;color:#cfd7de;}
  .check-list li::before{
    content:"";flex:0 0 8px;width:8px;height:8px;margin-top:8px;border-radius:3px;background:var(--grad);
  }
  .muted-list li::before{background:#3b444e;}

  /* ---------- Card grid ---------- */
  .card-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:24px;}
  .gcard{
    position:relative;
    display:flex;flex-direction:column;
    background:var(--bg-1);
    border-radius:var(--radius-md);
    overflow:hidden;
    box-shadow:var(--shadow),var(--shadow-inset);
    transition:transform .22s var(--ease),box-shadow .22s var(--ease);
  }
  .gcard:hover{transform:translateY(-4px);box-shadow:0 26px 54px rgba(0,0,0,.55),var(--shadow-inset);}
  .gcard .thumb{aspect-ratio:16/10;overflow:hidden;background:var(--bg-2);}
  .gcard .thumb img{width:100%;height:100%;object-fit:cover;transition:transform .4s var(--ease);}
  .gcard:hover .thumb img{transform:scale(1.03);}
  .gcard-body{padding:22px 22px 24px;display:flex;flex-direction:column;gap:10px;flex:1 1 auto;}
  .gcard-body h3{margin:0;font-size:17.5px;font-weight:600;line-height:1.4;}
  .gcard-body p{margin:0;color:var(--text-dim);font-size:14.5px;}
  .gcard-foot{margin-top:auto;padding-top:12px;display:flex;align-items:center;justify-content:space-between;gap:12px;}
  .meta{font-size:12.5px;color:#7b8794;letter-spacing:.02em;}
  .arrow-link{color:var(--primary);font-size:13.5px;font-weight:600;display:inline-flex;align-items:center;gap:6px;}
  .arrow-link:hover{text-decoration:underline;text-underline-offset:4px;}
  .gcard::after{
    content:"";position:absolute;inset:0;border-radius:inherit;pointer-events:none;
    background:var(--grad);opacity:0;transition:opacity .22s var(--ease);
    -webkit-mask:linear-gradient(#000 0 0) content-box,linear-gradient(#000 0 0);
    mask:linear-gradient(#000 0 0) content-box,linear-gradient(#000 0 0);
    -webkit-mask-composite:xor;mask-composite:exclude;padding:1px;
  }
  .gcard:hover::after{opacity:1;}

  /* ---------- Steps ---------- */
  .steps{position:relative;display:grid;gap:18px;padding-left:26px;}
  .steps::before{
    content:"";position:absolute;left:7px;top:8px;bottom:8px;width:2px;border-radius:2px;
    background:var(--grad);opacity:.55;
  }
  .step{position:relative;}
  .step::before{
    content:"";position:absolute;left:-26px;top:7px;width:16px;height:16px;border-radius:50%;
    background:var(--bg-0);box-shadow:inset 0 0 0 2px rgba(23,216,154,.6);
  }
  .step h4{margin:0 0 4px;font-size:15.5px;font-weight:600;}
  .step p{margin:0;color:var(--text-dim);font-size:14.5px;}

  /* ---------- FAQ ---------- */
  .faq-list{display:grid;gap:14px;}
  details.faq{
    background:var(--bg-1);
    border-radius:var(--radius-sm);
    box-shadow:var(--shadow-inset);
    padding:18px 22px;
    transition:box-shadow .22s var(--ease),background .22s var(--ease);
  }
  details.faq[open]{
    background:var(--bg-2);
    box-shadow:inset 2px 0 0 0 var(--primary),inset 0 0 0 1px rgba(255,255,255,.06);
  }
  details.faq summary{
    list-style:none;cursor:pointer;
    display:flex;align-items:center;justify-content:space-between;gap:14px;
    font-size:16px;font-weight:600;
  }
  details.faq summary::-webkit-details-marker{display:none;}
  details.faq summary::after{
    content:"+";flex:0 0 auto;font-size:20px;line-height:1;color:var(--primary);
    transition:transform .22s var(--ease),color .22s var(--ease);
  }
  details.faq[open] summary::after{content:"×";transform:rotate(0deg);color:var(--accent);}
  details.faq p{margin:12px 0 0;color:var(--text-dim);font-size:14.5px;}

  /* ---------- CTA strip ---------- */
  .cta-strip{
    position:relative;overflow:hidden;
    border-radius:var(--radius-lg);
    padding:34px 36px;
    background:var(--bg-1);
    box-shadow:var(--shadow),var(--shadow-inset);
    display:grid;grid-template-columns:1fr auto;gap:28px;align-items:center;
  }
  .cta-strip::before{
    content:"";position:absolute;inset:0;
    background:linear-gradient(100deg,rgba(23,216,154,.12),rgba(255,79,135,.1));
    pointer-events:none;
  }
  .cta-strip > *{position:relative;}
  .cta-strip h3{margin:0 0 8px;font-size:22px;font-weight:700;}
  .cta-strip p{margin:0;color:var(--text-dim);font-size:14.5px;max-width:640px;}
  .cta-actions{display:flex;gap:12px;flex-wrap:wrap;}

  /* ---------- Footer ---------- */
  .site-footer{
    margin-top:20px;
    border-top:1px solid var(--line);
    background:#0B0D10;
    padding:56px 0 26px;
  }
  .foot-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr;gap:34px;}
  .foot-brand{display:flex;align-items:center;gap:12px;margin-bottom:14px;}
  .foot-brand strong{font-size:16.5px;font-weight:700;}
  .foot-about{color:var(--text-dim);font-size:14px;margin:0;max-width:420px;}
  .foot-col h4{margin:0 0 14px;font-size:14px;font-weight:600;letter-spacing:.04em;color:var(--text);}
  .foot-col ul{list-style:none;margin:0;padding:0;display:grid;gap:10px;}
  .foot-col li{font-size:14px;color:var(--text-dim);}
  .foot-col a{color:var(--text-dim);transition:color .2s var(--ease);}
  .foot-col a:hover{color:var(--primary);}
  .foot-bottom{
    margin-top:40px;padding-top:20px;border-top:1px solid var(--line);
    display:flex;justify-content:space-between;gap:14px;flex-wrap:wrap;
    font-size:13px;color:#7b8794;
  }

  @media (prefers-reduced-motion:reduce){
    *{transition:none !important;animation:none !important;}
    .gcard:hover,.compare-card:hover{transform:none;}
  }

  /* ---------- Responsive ---------- */
  @media (max-width:1024px){
    .container{padding:0 24px;}
    .nav-top{grid-template-columns:auto auto;gap:16px;}
    .nav-search{grid-column:1 / -1;max-width:100%;order:3;margin-top:4px;}
    .nav-toggle{display:inline-flex;align-items:center;justify-content:center;}
    .nav-actions .btn-ghost{display:none;}
    .nav-pills{display:none;flex-direction:column;gap:8px;padding:10px 0 16px;}
    .nav-pills.open{display:flex;}
    .pill-link{width:100%;justify-content:flex-start;height:40px;}
    .hero-grid{grid-template-columns:1fr;gap:26px;}
    .hero-media{aspect-ratio:16/9;}
    .card-grid{grid-template-columns:1fr;gap:20px;}
    .compare{grid-template-columns:1fr;}
    .cta-strip{grid-template-columns:1fr;padding:28px 24px;}
    .foot-grid{grid-template-columns:1fr 1fr;gap:26px;}
  }
  @media (max-width:768px){
    .section{padding:60px 0;}
    .section-sm{padding:44px 0;}
    .hero{padding:36px 0 12px;}
    .brand-text em{display:none;}
    .foot-grid{grid-template-columns:1fr;}
    .cta-actions .btn{width:100%;}
  }
  @media (max-width:480px){
    .container{padding:0 18px;}
    .brand-text strong{font-size:14.5px;}
    .brand-mark{width:36px;height:36px;flex:0 0 36px;font-size:17px;}
    .hero h1{font-size:26px;}
    .hero-sub{font-size:14.5px;}
    .badge{height:30px;font-size:11.5px;padding:0 12px;}
    .btn-lg{height:44px;padding:0 20px;width:100%;}
    .hero-cta{flex-direction:column;}
    .compare-card{padding:22px 18px;}
    .gcard-body{padding:18px;}
    .foot-bottom{font-size:12px;}
  }

/* roulang page: article */
:root{
  --bg-0:#0E1013;
  --bg-1:#161A1F;
  --bg-2:#1F252C;
  --line:#262D35;
  --text:#E9EEF3;
  --text-dim:#98A4B2;
  --primary:#17D89A;
  --primary-deep:#0FB37F;
  --accent:#FF4F87;
  --amber:#FFC24B;
  --read-bg:#F7F5F0;
  --read-text:#1A1E23;
  --grad:linear-gradient(100deg,#17D89A 0%,#FF4F87 100%);
  --radius-lg:24px;
  --radius-md:20px;
  --radius-sm:16px;
  --shadow-card:0 18px 40px rgba(0,0,0,.45), inset 0 0 0 1px rgba(255,255,255,.06);
  --ease:cubic-bezier(.2,.7,.3,1);
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body{
  margin:0;
  background:var(--bg-0);
  color:var(--text);
  font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,sans-serif;
  font-size:15px;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border-style:none;}
a{color:var(--primary);text-decoration:none;text-underline-offset:4px;transition:color .22s var(--ease);}
a:hover{color:var(--accent);}
button,input,textarea,select{font:inherit;color:inherit;}
button{cursor:pointer;background:none;border:0;}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4,p{margin:0;}
:focus-visible{outline:2px solid var(--primary);outline-offset:2px;border-radius:6px;}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 32px;}
.num{font-variant-numeric:tabular-nums;font-feature-settings:"tnum";}

/* ---------- header / nav ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(14,16,19,.82);
  border-bottom:1px solid transparent;
  transition:background .24s var(--ease),border-color .24s var(--ease);
}
.site-header.is-scrolled{background:rgba(14,16,19,.94);border-bottom-color:var(--line);}
.nav-top{display:flex;align-items:center;gap:20px;padding:16px 0 10px;}
.brand{display:flex;align-items:center;gap:10px;flex-shrink:0;color:var(--text);}
.brand:hover{color:var(--text);}
.brand-mark{
  width:38px;height:38px;flex-shrink:0;border-radius:12px;
  background:var(--grad);color:#0E1013;
  display:flex;align-items:center;justify-content:center;
  font-weight:800;font-size:18px;letter-spacing:.02em;
}
.brand-text{display:flex;flex-direction:column;line-height:1.25;}
.brand-text strong{font-size:16px;font-weight:700;letter-spacing:.01em;white-space:nowrap;}
.brand-text em{font-style:normal;font-size:11.5px;color:var(--text-dim);letter-spacing:.02em;}
.nav-search{
  flex:1;max-width:620px;margin:0 auto;position:relative;
  display:flex;align-items:center;
  height:46px;border-radius:999px;
  background:var(--bg-1);
  box-shadow:inset 0 0 0 1px var(--line);
  transition:box-shadow .24s var(--ease);
}
.nav-search:focus-within{box-shadow:inset 0 0 0 1px var(--primary);}
.search-ic{width:19px;height:19px;margin:0 10px 0 18px;flex-shrink:0;fill:none;stroke:var(--text-dim);stroke-width:1.9;stroke-linecap:round;}
.nav-search input{
  flex:1;min-width:0;height:100%;background:transparent;border:0;outline:none;
  color:var(--text);font-size:14px;
}
.nav-search input::placeholder{color:#6C7784;}
.search-btn{
  height:36px;margin-right:5px;padding:0 20px;border-radius:999px;
  background:var(--grad);color:#0E1013;font-size:13.5px;font-weight:700;
  transition:filter .2s var(--ease),transform .2s var(--ease);
}
.search-btn:hover{filter:brightness(1.08);}
.search-btn:active{transform:translateY(1px);}
.nav-actions{display:flex;align-items:center;gap:10px;flex-shrink:0;}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:7px;
  border-radius:999px;font-weight:600;letter-spacing:.01em;
  transition:filter .2s var(--ease),transform .2s var(--ease),box-shadow .2s var(--ease),color .2s var(--ease);
  white-space:nowrap;
}
.btn-sm{height:38px;padding:0 18px;font-size:13.5px;}
.btn-md{height:46px;padding:0 26px;font-size:15px;}
.btn-grad{background:var(--grad);color:#0E1013;}
.btn-grad:hover{color:#0E1013;filter:brightness(1.08);}
.btn-grad:active{transform:translateY(1px);}
.btn-ghost{background:transparent;color:var(--text);box-shadow:inset 0 0 0 1px var(--line);border-radius:14px;}
.btn-ghost:hover{color:var(--primary);box-shadow:inset 0 0 0 1px var(--primary);}
.btn-ghost:active{transform:translateY(1px);}
.nav-toggle{
  display:none;width:40px;height:40px;border-radius:12px;color:var(--text);
  box-shadow:inset 0 0 0 1px var(--line);font-size:16px;
}
.nav-pills{display:flex;gap:10px;flex-wrap:wrap;padding:2px 0 14px;}
.pill-link{
  display:inline-flex;align-items:center;height:34px;padding:0 16px;
  border-radius:999px;font-size:13.5px;color:var(--text-dim);
  box-shadow:inset 0 0 0 1px var(--line);
  transition:color .22s var(--ease),box-shadow .22s var(--ease);
}
.pill-link:hover{color:var(--primary);box-shadow:inset 0 0 0 1px var(--primary);}
.pill-link.is-active{color:var(--primary);box-shadow:inset 0 0 0 1px var(--primary);}

/* ---------- page shell ---------- */
.page{padding:40px 0 0;}
.crumbs{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--text-dim);}
.crumbs a{color:var(--text-dim);}
.crumbs a:hover{color:var(--primary);}
.crumbs .sep{color:#4A525C;}
.article-head{max-width:820px;margin:0 auto;padding:20px 0 30px;}
.cat-pill{
  display:inline-flex;align-items:center;height:28px;padding:0 14px;border-radius:999px;
  font-size:12.5px;font-weight:500;letter-spacing:.02em;
  color:var(--primary);background:rgba(23,216,154,.12);
  box-shadow:inset 0 0 0 1px rgba(23,216,154,.35);
}
.article-head h1{
  margin-top:16px;
  font-size:clamp(26px,3.6vw,40px);
  line-height:1.25;font-weight:800;letter-spacing:-.01em;color:var(--text);
}
.meta-row{display:flex;flex-wrap:wrap;align-items:center;gap:10px;margin-top:16px;font-size:13px;color:var(--text-dim);}
.meta-row .dot{color:#4A525C;}

/* ---------- reader ---------- */
.reader-wrap{padding:0 0 20px;}
.reader-card{
  max-width:820px;margin:0 auto;
  background:var(--read-bg);color:var(--read-text);
  border-radius:var(--radius-lg);
  padding:48px;
  box-shadow:0 24px 60px rgba(0,0,0,.5);
}
.article-body{font-size:17px;line-height:1.9;word-break:break-word;}
.article-body > *:first-child{margin-top:0;}
.article-body p{margin:1.1em 0;}
.article-body h2{
  font-size:24px;font-weight:700;line-height:1.4;letter-spacing:-.005em;
  margin:2em 0 .7em;padding-left:14px;position:relative;color:#12161B;
}
.article-body h2::before{
  content:"";position:absolute;left:0;top:.28em;bottom:.28em;width:5px;border-radius:3px;background:var(--grad);
}
.article-body h3{font-size:19px;font-weight:700;margin:1.7em 0 .5em;color:#12161B;}
.article-body h4{font-size:17px;font-weight:700;margin:1.5em 0 .4em;color:#1A1E23;}
.article-body ul{margin:1.1em 0;padding-left:0;}
.article-body ol{margin:1.1em 0;padding-left:0;counter-reset:li;}
.article-body ul > li{position:relative;padding-left:26px;margin:.5em 0;}
.article-body ul > li::before{
  content:"";position:absolute;left:6px;top:.75em;width:7px;height:7px;border-radius:2px;
  background:var(--primary-deep);
}
.article-body ol > li{position:relative;padding-left:32px;margin:.5em 0;counter-increment:li;}
.article-body ol > li::before{
  content:counter(li);position:absolute;left:0;top:.32em;
  width:21px;height:21px;border-radius:50%;
  background:rgba(15,179,127,.14);color:#0B7A58;
  font-size:12px;font-weight:700;line-height:21px;text-align:center;
}
.article-body blockquote{
  margin:1.4em 0;padding:16px 20px;
  background:#EEEAE2;border-left:3px solid var(--primary-deep);border-radius:0 12px 12px 0;
  color:#3A4149;font-size:16px;
}
.article-body blockquote p{margin:.35em 0;}
.article-body table{width:100%;border-collapse:collapse;margin:1.4em 0;font-size:15px;}
.article-body table th{
  background:#ECE7DE;font-weight:700;text-align:left;padding:12px 14px;color:#20252B;
  border-bottom:1px solid #DCD5C9;
}
.article-body table td{padding:11px 14px;border-bottom:1px solid #E4DED3;color:#333A42;}
.article-body table tbody tr:nth-child(even){background:#F1EDE5;}
.article-body img{border-radius:12px;margin:1.5em auto;max-width:100%;height:auto;}
.article-body figure{margin:1.6em 0;}
.article-body figcaption{text-align:center;font-size:13px;color:#7C848E;margin-top:10px;}
.article-body pre{
  background:#15191E;color:#DDE5EC;border-radius:14px;
  padding:18px 20px;overflow-x:auto;font-size:14px;line-height:1.7;
  margin:1.4em 0;
}
.article-body code{
  font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;
  font-size:.92em;background:#E7E1D6;color:#0B7A58;padding:2px 6px;border-radius:6px;
}
.article-body pre code{background:transparent;color:inherit;padding:0;}
.article-body hr{border:0;border-top:1px solid #DFD8CB;margin:2em 0;}
.article-body a{color:#0B7A58;text-decoration:underline;text-underline-offset:4px;}
.article-body a:hover{color:#B3305F;}
.empty-state{
  text-align:center;padding:36px 10px 44px;color:#4A525C;
}
.empty-state .ghost-ic{
  width:64px;height:64px;margin:0 auto 18px;border-radius:20px;
  background:#EAE4D9;display:flex;align-items:center;justify-content:center;
  font-size:26px;color:#8A929B;
}
.empty-state h2{font-size:20px;font-weight:700;color:#1A1E23;margin-bottom:8px;}
.empty-state p{font-size:15px;line-height:1.8;color:#5C646E;max-width:440px;margin:0 auto 22px;}
.empty-state .btn-ghost{color:#1A1E23;box-shadow:inset 0 0 0 1px #C9C1B3;}
.empty-state .btn-ghost:hover{color:#0B7A58;box-shadow:inset 0 0 0 1px var(--primary-deep);}

/* ---------- related ---------- */
.section{padding:88px 0 0;}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;margin-bottom:28px;}
.section-head h2{font-size:clamp(22px,2.6vw,30px);font-weight:700;letter-spacing:-.01em;}
.section-head p{margin-top:8px;font-size:15px;color:var(--text-dim);}
.related-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(300px,1fr));gap:24px;}
.rel-card{
  display:flex;flex-direction:column;overflow:hidden;
  background:var(--bg-1);border-radius:var(--radius-md);
  box-shadow:var(--shadow-card);
  transition:transform .24s var(--ease),box-shadow .24s var(--ease);
}
.rel-card:hover{
  transform:translateY(-4px);
  box-shadow:0 26px 54px rgba(0,0,0,.55), inset 0 0 0 1px rgba(23,216,154,.55);
}
.rel-thumb{aspect-ratio:16/10;overflow:hidden;background:var(--bg-2);}
.rel-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .4s var(--ease);}
.rel-card:hover .rel-thumb img{transform:scale(1.03);}
.rel-body{padding:20px 22px 22px;display:flex;flex-direction:column;gap:10px;flex:1;}
.rel-body h3{font-size:17.5px;font-weight:600;line-height:1.5;}
.rel-body p{font-size:14px;color:var(--text-dim);line-height:1.75;}
.rel-foot{margin-top:auto;display:flex;align-items:center;justify-content:space-between;font-size:12.5px;color:var(--text-dim);}
.rel-foot .arrow{color:var(--primary);font-weight:600;}
.back-row{display:flex;flex-wrap:wrap;gap:14px;margin-top:36px;}

/* ---------- cta ---------- */
.cta-strip{
  margin-top:96px;
  border-radius:var(--radius-lg);
  background:var(--bg-1);
  box-shadow:var(--shadow-card);
  padding:44px 48px;
  display:flex;align-items:center;justify-content:space-between;gap:32px;
  position:relative;overflow:hidden;
}
.cta-strip::before{
  content:"";position:absolute;left:0;top:0;bottom:0;width:4px;background:var(--grad);
}
.cta-strip h2{font-size:clamp(21px,2.4vw,27px);font-weight:700;letter-spacing:-.01em;}
.cta-strip p{margin-top:10px;font-size:15px;color:var(--text-dim);max-width:560px;}
.cta-actions{display:flex;gap:14px;flex-wrap:wrap;flex-shrink:0;}

/* ---------- footer ---------- */
.site-footer{margin-top:96px;border-top:1px solid var(--line);background:#0B0D10;}
.foot-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr;gap:40px;padding:56px 0 40px;}
.foot-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px;}
.foot-brand strong{font-size:16px;font-weight:700;}
.foot-about{font-size:14px;color:var(--text-dim);line-height:1.85;max-width:420px;}
.foot-col h4{font-size:13px;font-weight:700;letter-spacing:.04em;color:var(--text);margin-bottom:16px;}
.foot-col ul{display:flex;flex-direction:column;gap:11px;}
.foot-col li{font-size:13.5px;color:var(--text-dim);}
.foot-col li a{color:var(--text-dim);}
.foot-col li a:hover{color:var(--primary);}
.foot-bottom{
  border-top:1px solid var(--line);
  padding:20px 0 28px;
  display:flex;flex-wrap:wrap;gap:10px;justify-content:space-between;
  font-size:12.5px;color:#6C7784;
}

/* ---------- responsive ---------- */
@media (max-width:1024px){
  .container{padding:0 24px;}
  .nav-top{flex-wrap:wrap;row-gap:12px;}
  .brand{order:1;}
  .nav-actions{order:2;margin-left:auto;}
  .nav-toggle{display:inline-flex;align-items:center;justify-content:center;}
  .nav-search{order:3;flex:1 0 100%;max-width:none;margin:0;}
  .nav-pills{display:none;padding-bottom:14px;}
  .nav-pills.is-open{display:flex;}
  .foot-grid{grid-template-columns:1fr 1fr;gap:32px;}
  .reader-card{padding:36px;}
}
@media (max-width:768px){
  .section{padding-top:60px;}
  .article-head{padding:14px 0 22px;}
  .reader-card{padding:26px;border-radius:20px;}
  .article-body{font-size:16px;line-height:1.85;}
  .article-body h2{font-size:21px;}
  .article-body h3{font-size:18px;}
  .cta-strip{flex-direction:column;align-items:flex-start;padding:32px 26px;margin-top:64px;}
  .site-footer{margin-top:64px;}
  .foot-grid{grid-template-columns:1fr;padding:44px 0 32px;}
}
@media (max-width:520px){
  .container{padding:0 18px;}
  .brand-text em{display:none;}
  .nav-search{height:42px;}
  .search-btn{padding:0 15px;font-size:13px;}
  .btn-sm{height:34px;padding:0 14px;font-size:13px;}
  .reader-card{padding:22px;border-radius:18px;}
  .article-body{font-size:15.5px;}
  .related-grid{gap:16px;}
  .back-row .btn{width:100%;}
  .foot-bottom{flex-direction:column;gap:6px;}
}
@media (prefers-reduced-motion:reduce){
  *{animation:none !important;transition:none !important;}
}

/* roulang page: category2 */
:root{
  --bg-0:#0E1013;--bg-1:#161A1F;--bg-2:#1F252C;--line:#262D35;
  --text:#E9EEF3;--text-dim:#98A4B2;--primary:#17D89A;--primary-deep:#0FB37F;
  --accent:#FF4F87;--amber:#FFC24B;--read-bg:#F7F5F0;--read-text:#1A1E23;
  --grad:linear-gradient(100deg,#17D89A 0%,#FF4F87 100%);
  --r-lg:24px;--r-md:20px;--r-sm:14px;--r-pill:999px;
  --shadow:0 18px 40px rgba(0,0,0,.45);
  --ease:cubic-bezier(.2,.7,.3,1);
  --maxw:1200px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
html body{
  margin:0;background:var(--bg-0);color:var(--text);
  font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC",system-ui,sans-serif;
  font-size:16px;line-height:1.75;letter-spacing:.01em;
  -webkit-font-smoothing:antialiased;
}
html body img{max-width:100%;display:block}
html body a{color:inherit;text-decoration:none}
html body h1,html body h2,html body h3,html body h4,html body p,html body ul,html body ol{margin:0}
html body ul,html body ol{padding:0;list-style:none}
.container{width:100%;max-width:var(--maxw);margin:0 auto;padding:0 32px}
@media(max-width:768px){.container{padding:0 20px}}

/* ---------- header ---------- */
.site-header{position:sticky;top:0;z-index:50;background:rgba(14,16,19,.86);border-bottom:1px solid transparent;transition:background .24s var(--ease),border-color .24s var(--ease)}
.site-header.is-scrolled{background:rgba(14,16,19,.97);border-bottom-color:var(--line)}
.nav-top{display:flex;align-items:center;gap:22px;padding:14px 0}
.brand{display:flex;align-items:center;gap:12px;flex:0 0 auto}
.brand-mark{width:42px;height:42px;border-radius:13px;background:var(--grad);color:#08110d;display:inline-flex;align-items:center;justify-content:center;font-weight:800;font-size:19px;flex:0 0 auto}
.brand-text{display:flex;flex-direction:column;line-height:1.25}
.brand-text strong{font-size:16px;font-weight:800;letter-spacing:.01em;white-space:nowrap}
.brand-text em{font-style:normal;font-size:12px;color:var(--text-dim);letter-spacing:.04em;white-space:nowrap}
.nav-search{display:flex;align-items:center;gap:8px;flex:1 1 auto;max-width:620px;height:46px;padding:0 6px 0 16px;background:var(--bg-1);border:1px solid var(--line);border-radius:var(--r-pill);transition:border-color .22s var(--ease),box-shadow .22s var(--ease)}
.nav-search:focus-within{border-color:var(--primary);box-shadow:0 0 0 3px rgba(23,216,154,.18)}
.search-ic{width:18px;height:18px;flex:0 0 auto;fill:none;stroke:var(--text-dim);stroke-width:2;stroke-linecap:round}
.nav-search input{flex:1 1 auto;min-width:0;background:none;border:0;outline:none;font-size:14px;color:var(--text)}
.nav-search input::placeholder{color:#6d7887}
.search-btn{height:34px;padding:0 18px;border:0;border-radius:var(--r-pill);background:var(--grad);color:#08110d;font-weight:700;font-size:13px;cursor:pointer;transition:filter .2s var(--ease),transform .2s var(--ease)}
.search-btn:hover{filter:brightness(1.08)}
.search-btn:active{transform:translateY(1px)}
.nav-actions{display:flex;align-items:center;gap:10px;flex:0 0 auto}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;border-radius:var(--r-pill);font-weight:600;font-size:14px;padding:12px 26px;border:1px solid transparent;cursor:pointer;transition:transform .22s var(--ease),filter .22s var(--ease),border-color .22s var(--ease),color .22s var(--ease),background .22s var(--ease)}
.btn-sm{padding:9px 18px;font-size:13px}
.btn-grad{background:var(--grad);color:#08110d;font-weight:700}
.btn-grad:hover{filter:brightness(1.08);transform:translateY(-2px)}
.btn-ghost{border-color:var(--line);color:var(--text);background:transparent}
.btn-ghost:hover{border-color:var(--primary);color:var(--primary);transform:translateY(-2px)}
.btn:active{transform:translateY(1px)}
.btn:focus-visible,.pill-link:focus-visible,.nav-toggle:focus-visible,.nav-search input:focus-visible,.search-btn:focus-visible,.foot-col a:focus-visible{outline:2px solid var(--primary);outline-offset:2px}
.nav-toggle{display:none;width:42px;height:42px;border-radius:13px;border:1px solid var(--line);background:var(--bg-1);color:var(--text);font-size:17px;cursor:pointer;align-items:center;justify-content:center}
.nav-pills{display:flex;gap:10px;padding:0 0 12px;overflow-x:auto;scrollbar-width:none}
.nav-pills::-webkit-scrollbar{display:none}
.pill-link{padding:7px 16px;border-radius:var(--r-pill);border:1px solid var(--line);font-size:13.5px;color:var(--text-dim);white-space:nowrap;transition:color .2s var(--ease),border-color .2s var(--ease),background .2s var(--ease)}
.pill-link:hover{color:var(--text);border-color:#3b4550}
.pill-link.is-active{color:var(--primary);border-color:transparent;background:linear-gradient(var(--bg-2),var(--bg-2)) padding-box,var(--grad) border-box}

/* ---------- hero ---------- */
.page-hero{position:relative;padding:60px 0 68px;border-bottom:1px solid var(--line);overflow:hidden}
.page-hero::before{content:"";position:absolute;inset:0;background-image:url(/assets/images/backpic/back-2.webp);background-size:cover;background-position:center;opacity:.3}
.page-hero::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(14,16,19,.7) 0%,rgba(14,16,19,.93) 58%,var(--bg-0) 100%)}
.page-hero .container{position:relative;z-index:2}
.crumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--text-dim);margin-bottom:20px}
.crumb a{color:var(--text-dim);transition:color .2s var(--ease)}
.crumb a:hover{color:var(--primary)}
.crumb .sep{color:#4b545f}
.crumb .now{color:var(--text)}
.hero-h1{font-size:clamp(28px,4.2vw,46px);font-weight:800;line-height:1.18;letter-spacing:-.01em;max-width:900px}
.hero-h1 .hl{color:var(--primary)}
.hero-lead{margin-top:18px;max-width:760px;color:var(--text-dim);font-size:16px;line-height:1.85}
.badge-row{display:flex;flex-wrap:wrap;gap:10px;margin-top:28px}
.badge{display:inline-flex;align-items:center;gap:8px;padding:8px 16px;border-radius:var(--r-pill);background:rgba(23,216,154,.1);border:1px solid rgba(23,216,154,.28);font-size:13px;color:var(--text-dim);letter-spacing:.02em}
.badge b{color:var(--primary);font-weight:700;font-size:14px;font-variant-numeric:tabular-nums}
.badge.is-amber{background:rgba(255,194,75,.1);border-color:rgba(255,194,75,.26)}
.badge.is-amber b{color:var(--amber)}
.badge.is-pink{background:rgba(255,79,135,.1);border-color:rgba(255,79,135,.3)}
.badge.is-pink b{color:var(--accent)}

/* ---------- sections ---------- */
.section{padding:90px 0}
.section.is-tight{padding:64px 0}
.section.is-alt{background:var(--bg-1);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.sec-head{max-width:760px;margin-bottom:42px}
.sec-eyebrow{display:inline-block;font-size:12.5px;letter-spacing:.16em;color:var(--primary);text-transform:uppercase}
.sec-title{font-size:clamp(24px,3vw,33px);font-weight:700;line-height:1.3;margin-top:12px}
.sec-lead{margin-top:14px;color:var(--text-dim);font-size:15.5px;line-height:1.85}

/* ---------- card grid ---------- */
.card-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px}
.v-card{position:relative;display:flex;flex-direction:column;gap:12px;padding:26px 24px 24px;border-radius:var(--r-md);background:var(--bg-1);box-shadow:var(--shadow),inset 0 0 0 1px rgba(255,255,255,.06);transition:transform .24s var(--ease),box-shadow .24s var(--ease)}
.v-card::after{content:"";position:absolute;inset:0;border-radius:inherit;padding:1px;background:var(--grad);opacity:0;pointer-events:none;transition:opacity .24s var(--ease);
  -webkit-mask:linear-gradient(#000 0 0) content-box,linear-gradient(#000 0 0);-webkit-mask-composite:xor;mask-composite:exclude}
.v-card:hover{transform:translateY(-4px)}
.v-card:hover::after{opacity:1}
.v-card-top{display:flex;align-items:center;justify-content:space-between;gap:12px}
.card-num{font-size:12.5px;font-weight:700;color:var(--primary);font-variant-numeric:tabular-nums;letter-spacing:.12em}
.tag{display:inline-block;padding:4px 11px;border-radius:var(--r-pill);font-size:12px;letter-spacing:.02em;color:var(--text-dim);background:var(--bg-2);border:1px solid var(--line)}
.card-title{font-size:18px;font-weight:600;line-height:1.4}
.card-text{color:var(--text-dim);font-size:14.6px;line-height:1.8}
.card-more{margin-top:auto;display:inline-flex;align-items:center;gap:8px;font-size:13.5px;color:var(--primary);padding-top:6px}
.card-more span{transition:transform .22s var(--ease)}
.v-card:hover .card-more span{transform:translateX(4px)}

/* ---------- split feature ---------- */
.split{display:grid;grid-template-columns:1.05fr .95fr;gap:48px;align-items:center}
.split-media{position:relative;border-radius:var(--r-lg);overflow:hidden;box-shadow:var(--shadow),inset 0 0 0 1px rgba(255,255,255,.06)}
.split-media img{width:100%;height:100%;min-height:320px;object-fit:cover}
.split-media::after{content:"";position:absolute;inset:0;background:linear-gradient(120deg,rgba(14,16,19,.62) 0%,rgba(14,16,19,.05) 62%)}
.check-list{display:grid;gap:16px;margin-top:26px}
.check-item{display:flex;gap:14px;padding:18px 20px;border-radius:var(--r-sm);background:var(--bg-1);box-shadow:inset 0 0 0 1px rgba(255,255,255,.06)}
.check-dot{flex:0 0 auto;width:30px;height:30px;border-radius:10px;background:rgba(23,216,154,.14);border:1px solid rgba(23,216,154,.34);color:var(--primary);display:flex;align-items:center;justify-content:center;font-size:13px;font-weight:700;font-variant-numeric:tabular-nums}
.check-item h3{font-size:16px;font-weight:600;margin-bottom:4px}
.check-item p{color:var(--text-dim);font-size:14.4px;line-height:1.78}

/* ---------- compare panel ---------- */
.compare{border-radius:var(--r-lg);overflow:hidden;background:var(--bg-1);box-shadow:var(--shadow),inset 0 0 0 1px rgba(255,255,255,.06)}
.compare-row{display:grid;grid-template-columns:minmax(0,.85fr) minmax(0,1.15fr);gap:0;border-top:1px solid var(--line);transition:background .22s var(--ease)}
.compare-row:first-child{border-top:0}
.compare-row:hover{background:rgba(255,255,255,.02)}
.compare-cell{padding:22px 26px;font-size:14.6px;line-height:1.8}
.compare-cell.key{color:var(--text);font-weight:600;position:relative}
.compare-cell.key::before{content:"";position:absolute;left:0;top:22px;bottom:22px;width:2px;background:var(--grad);border-radius:2px}
.compare-cell.val{color:var(--text-dim)}
.compare-head{background:var(--bg-2)}
.compare-head .compare-cell{font-size:12.5px;letter-spacing:.12em;color:var(--text-dim);font-weight:600}
.compare-head .compare-cell.key::before{display:none}

/* ---------- faq ---------- */
.faq{display:grid;gap:14px}
.faq details{position:relative;border-radius:16px;background:var(--bg-1);box-shadow:inset 0 0 0 1px rgba(255,255,255,.06);overflow:hidden}
.faq summary{position:relative;cursor:pointer;list-style:none;padding:20px 58px 20px 26px;font-size:16px;font-weight:600;transition:color .2s var(--ease)}
.faq summary::-webkit-details-marker{display:none}
.faq summary::before{content:"";position:absolute;left:0;top:0;bottom:0;width:2px;background:var(--grad);opacity:0;transition:opacity .22s var(--ease)}
.faq details[open] summary::before{opacity:1}
.faq details[open] summary{color:var(--primary)}
.faq summary::after{content:"+";position:absolute;right:24px;top:50%;transform:translateY(-50%);color:var(--primary);font-size:20px;line-height:1;transition:transform .24s var(--ease)}
.faq details[open] summary::after{content:"×";transform:translateY(-50%) rotate(90deg)}
.faq-body{padding:0 58px 24px 26px;color:var(--text-dim);font-size:15px;line-height:1.85}

/* ---------- cta band ---------- */
.cta-band{position:relative;display:flex;align-items:center;justify-content:space-between;gap:36px;padding:42px 44px;border-radius:var(--r-lg);background:var(--bg-1);box-shadow:var(--shadow),inset 0 0 0 1px rgba(255,255,255,.06);overflow:hidden}
.cta-band::before{content:"";position:absolute;inset:0;background:var(--grad);opacity:.09}
.cta-band > *{position:relative;z-index:2}
.cta-band h2{font-size:clamp(21px,2.4vw,27px);font-weight:700;line-height:1.35}
.cta-band p{margin-top:10px;color:var(--text-dim);font-size:14.8px;max-width:620px}
.cta-actions{display:flex;gap:12px;flex-wrap:wrap;flex:0 0 auto}

/* ---------- footer ---------- */
.site-footer{margin-top:20px;padding:66px 0 28px;background:#0B0D10;border-top:1px solid var(--line)}
.foot-grid{display:grid;grid-template-columns:1.7fr 1fr 1fr;gap:44px}
.foot-brand{display:flex;align-items:center;gap:12px;margin-bottom:16px}
.foot-brand strong{font-size:16px;font-weight:800}
.foot-about{color:var(--text-dim);font-size:14.5px;line-height:1.8;max-width:430px}
.foot-col h4{font-size:14px;font-weight:700;margin-bottom:16px}
.foot-col ul{display:grid;gap:11px}
.foot-col a,.foot-col span{color:var(--text-dim);font-size:14px;transition:color .2s var(--ease)}
.foot-col a:hover{color:var(--primary)}
.foot-bottom{margin-top:46px;padding-top:20px;border-top:1px solid var(--line);display:flex;flex-wrap:wrap;justify-content:space-between;gap:12px;color:#6d7887;font-size:13px}

/* ---------- responsive ---------- */
@media(max-width:1024px){
  .card-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .split{grid-template-columns:1fr;gap:32px}
  .nav-actions .btn{display:none}
  .nav-toggle{display:inline-flex}
  .nav-pills{display:none;flex-direction:column;gap:8px;padding:10px 0 14px}
  .nav-pills.is-open{display:flex}
  .pill-link{width:100%;text-align:center}
  .foot-grid{grid-template-columns:1fr 1fr;gap:32px}
}
@media(max-width:768px){
  .section{padding:60px 0}
  .section.is-tight{padding:48px 0}
  .nav-top{flex-wrap:wrap;gap:14px}
  .nav-search{order:3;flex:1 1 100%;max-width:none;margin-top:4px}
  .page-hero{padding:40px 0 48px}
  .hero-lead{font-size:15px}
  .compare-row{grid-template-columns:1fr}
  .compare-cell.key::before{display:none}
  .compare-cell.key{padding-bottom:6px}
  .compare-cell.val{padding-top:0}
  .cta-band{flex-direction:column;align-items:flex-start;padding:32px 24px}
  .faq summary{padding:18px 50px 18px 20px}
  .faq-body{padding:0 50px 22px 20px}
  .foot-grid{grid-template-columns:1fr}
  .split-media img{min-height:220px}
}
@media(max-width:520px){
  .card-grid{grid-template-columns:1fr}
  .brand-text em{display:none}
  .brand-mark{width:38px;height:38px;font-size:17px}
  .hero-h1{font-size:26px}
  .btn{padding:11px 20px;font-size:13.5px}
  .cta-actions{width:100%}
  .cta-actions .btn{flex:1 1 auto}
  .badge{font-size:12px;padding:7px 13px}
}
@media(prefers-reduced-motion:reduce){
  *{transition:none!important;animation:none!important;scroll-behavior:auto!important}
}