/* roulang page: index */
:root{
  --bg:#0B0D0C;
  --bg-2:#121614;
  --bg-3:#1A1F1C;
  --line:rgba(242,239,232,.10);
  --line-strong:rgba(242,239,232,.18);
  --text:#F2EFE8;
  --text-2:#A8B0AA;
  --text-3:#6E7672;
  --brand:#B6FF3C;
  --brand-ink:#0B0D0C;
  --warn:#FF6A3D;
  --r-card:10px;
  --r-btn:6px;
  --r-img:8px;
  --shadow-card:0 1px 0 rgba(255,255,255,.04) inset, 0 20px 40px -24px rgba(0,0,0,.65);
  --shadow-pop:0 24px 60px -20px rgba(0,0,0,.7);
  --ease:cubic-bezier(.2,.7,.3,1);
}
*{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC",-apple-system,BlinkMacSystemFont,"Helvetica Neue",Arial,sans-serif;
  font-size:16px;
  line-height:1.9;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;}
button,input{font-family:inherit;font-size:inherit;}
h1,h2,h3,h4{margin:0;letter-spacing:-.02em;font-weight:700;color:var(--text);}
p{margin:0;}
ul{margin:0;padding:0;list-style:none;}
.num{font-variant-numeric:tabular-nums;font-feature-settings:"tnum";}
.container-x{width:100%;max-width:1200px;margin:0 auto;padding:0 20px;}
@media (min-width:768px){.container-x{padding:0 32px;}}

/* ---------- 头部导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:60;height:60px;
  background:rgba(11,13,12,.92);
  border-bottom:1px solid transparent;
  transition:background .25s var(--ease), border-color .25s var(--ease), backdrop-filter .25s var(--ease);
}
@media (min-width:768px){.site-header{height:68px;}}
.site-header.is-scrolled{
  background:rgba(11,13,12,.85);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  border-bottom-color:var(--line);
}
.header-inner{height:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;}
.brand{display:flex;align-items:baseline;gap:6px;font-weight:800;letter-spacing:-.02em;white-space:nowrap;}
.brand-main{font-size:19px;color:var(--text);}
.brand-sep{color:var(--line-strong);font-weight:400;font-size:15px;}
.brand-sub{font-size:12px;color:var(--brand);letter-spacing:.04em;font-weight:600;}
@media (min-width:768px){.brand-main{font-size:21px;}.brand-sub{font-size:13px;}}
.nav-desktop{display:none;align-items:center;gap:4px;}
@media (min-width:1024px){.nav-desktop{display:flex;}}
.nav-link{
  position:relative;padding:8px 14px;border-radius:999px;
  font-size:14px;color:var(--text-2);
  transition:color .2s var(--ease), background .2s var(--ease);
}
.nav-link:hover{color:var(--text);background:rgba(242,239,232,.06);}
.nav-link.is-active{color:var(--brand);}
.nav-link.is-active::after{
  content:"";position:absolute;left:14px;right:14px;bottom:1px;height:2px;
  background:var(--brand);border-radius:2px;
}
.header-actions{display:flex;align-items:center;gap:14px;}
.header-textlink{display:none;font-size:13px;color:var(--text-2);transition:color .2s var(--ease);}
.header-textlink:hover{color:var(--brand);}
@media (min-width:640px){.header-textlink{display:inline-block;}}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  border-radius:var(--r-btn);border:1px solid transparent;
  cursor:pointer;font-weight:600;letter-spacing:.01em;
  transition:background .2s var(--ease), color .2s var(--ease), border-color .2s var(--ease), transform .2s var(--ease), box-shadow .2s var(--ease);
}
.btn-primary{background:var(--brand);color:var(--brand-ink);border-color:var(--brand);}
.btn-primary:hover{background:#c6ff63;border-color:#c6ff63;transform:translateY(-1px);}
.btn-ghost{background:transparent;color:var(--text);border-color:var(--line-strong);}
.btn-ghost:hover{border-color:var(--brand);color:var(--brand);transform:translateY(-1px);}
.btn-sm{padding:8px 16px;font-size:13px;}
.btn-lg{padding:14px 28px;font-size:15px;}
.btn .arrow{transition:transform .2s var(--ease);}
.btn:hover .arrow{transform:translateX(4px);}
.burger{
  width:44px;height:44px;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:6px;
  background:transparent;border:1px solid var(--line-strong);border-radius:var(--r-btn);cursor:pointer;
}
@media (min-width:1024px){.burger{display:none;}}
.burger span{display:block;width:18px;height:1.5px;background:var(--text);transition:transform .25s var(--ease), opacity .25s var(--ease);}
.burger.is-open span:nth-child(1){transform:translateY(3.75px) rotate(45deg);}
.burger.is-open span:nth-child(2){transform:translateY(-3.75px) rotate(-45deg);}

/* 移动端抽屉 */
.drawer{
  position:fixed;inset:0 0 0 auto;width:280px;max-width:86vw;z-index:80;
  background:var(--bg-2);border-left:1px solid var(--line);
  transform:translateX(100%);transition:transform .28s var(--ease);
  padding:24px 22px;display:flex;flex-direction:column;gap:8px;overflow-y:auto;
}
.drawer.is-open{transform:translateX(0);}
.drawer-mask{
  position:fixed;inset:0;background:rgba(0,0,0,.6);z-index:70;
  opacity:0;visibility:hidden;transition:opacity .28s var(--ease), visibility .28s var(--ease);
}
.drawer-mask.is-open{opacity:1;visibility:visible;}
.drawer-head{display:flex;align-items:center;justify-content:space-between;padding-bottom:18px;border-bottom:1px solid var(--line);margin-bottom:8px;}
.drawer-close{width:40px;height:40px;border-radius:var(--r-btn);border:1px solid var(--line-strong);background:transparent;color:var(--text-2);cursor:pointer;font-size:18px;line-height:1;}
.drawer-link{padding:13px 4px;font-size:15px;color:var(--text-2);border-bottom:1px solid var(--line);transition:color .2s var(--ease), padding-left .2s var(--ease);}
.drawer-link:hover{color:var(--brand);padding-left:8px;}
.drawer-link.is-active{color:var(--brand);}
.drawer-cta{margin-top:18px;}
.drawer-note{margin-top:auto;padding-top:20px;font-size:12px;line-height:1.8;color:var(--text-3);}

/* ---------- 通用区块 ---------- */
.section{padding:56px 0;}
@media (min-width:768px){.section{padding:88px 0;}}
.section-line{border-top:1px solid var(--line);}
.sec-label{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12px;letter-spacing:.18em;color:var(--text-3);text-transform:uppercase;margin-bottom:14px;
}
.sec-title{display:flex;align-items:baseline;gap:12px;font-size:26px;line-height:1.2;}
@media (min-width:768px){.sec-title{font-size:36px;}}
.sec-no{font-size:13px;color:var(--brand);font-weight:700;letter-spacing:.06em;font-variant-numeric:tabular-nums;}
.sec-lead{margin-top:14px;max-width:680px;font-size:15px;color:var(--text-2);line-height:1.95;}
.tag{
  display:inline-flex;align-items:center;gap:6px;
  padding:4px 12px;border-radius:999px;border:1px solid var(--line-strong);
  font-size:12px;letter-spacing:.08em;color:var(--text-2);background:rgba(242,239,232,.03);
}
.tag-live{color:var(--warn);border-color:rgba(255,106,61,.4);background:rgba(255,106,61,.10);}
.dot-live{width:6px;height:6px;border-radius:50%;background:var(--warn);animation:pulse 1.6s ease-in-out infinite;}
@keyframes pulse{0%,100%{opacity:1;transform:scale(1);}50%{opacity:.35;transform:scale(.78);}}

/* ---------- Hero ---------- */
.hero{padding:36px 0 44px;position:relative;}
@media (min-width:768px){.hero{padding:56px 0 64px;}}
.hero-grid{display:grid;grid-template-columns:1fr;gap:32px;align-items:center;}
@media (min-width:1024px){.hero-grid{grid-template-columns:1fr 1fr;gap:56px;}}
.hero-media{position:relative;border-radius:var(--r-card);overflow:hidden;border:1px solid var(--line);aspect-ratio:16/9;background:var(--bg-3);box-shadow:var(--shadow-card);}
.hero-media img{width:100%;height:100%;object-fit:cover;}
.hero-media::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(11,13,12,.15) 0%,rgba(11,13,12,.35) 55%,rgba(11,13,12,.88) 100%);}
.hero-badge{
  position:absolute;top:14px;left:14px;z-index:3;
  display:inline-flex;align-items:center;gap:7px;padding:5px 12px;border-radius:999px;
  background:rgba(255,106,61,.16);border:1px solid rgba(255,106,61,.5);color:#FFD8C9;
  font-size:12px;letter-spacing:.16em;font-weight:700;
}
.hero-caption{
  position:absolute;left:18px;right:18px;bottom:16px;z-index:3;
  display:flex;align-items:flex-end;justify-content:space-between;gap:12px;
}
.hero-caption h3{font-size:16px;font-weight:600;color:var(--text);}
.hero-caption span{font-size:12px;color:var(--text-2);white-space:nowrap;}
.hero-kicker{font-size:12px;letter-spacing:.24em;color:var(--brand);font-weight:700;margin-bottom:16px;}
.hero h1{
  font-size:36px;line-height:1.1;font-weight:800;letter-spacing:-.02em;
}
@media (min-width:768px){.hero h1{font-size:50px;}}
@media (min-width:1280px){.hero h1{font-size:60px;}}
.hero-rule{width:48px;height:2px;background:var(--brand);margin:20px 0;border-radius:2px;}
.hero-sub{font-size:15px;color:var(--text-2);line-height:1.95;max-width:540px;}
@media (min-width:768px){.hero-sub{font-size:16px;}}
.hero-cta{display:flex;flex-direction:column;gap:12px;margin-top:28px;}
@media (min-width:560px){.hero-cta{flex-direction:row;}}
.hero-facts{display:flex;flex-wrap:wrap;gap:10px;margin-top:26px;}

/* ---------- 倒计时条 ---------- */
.countdown-bar{
  position:sticky;top:60px;z-index:40;
  background:rgba(18,22,20,.94);
  backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);
  border-top:1px solid var(--line);border-bottom:1px solid var(--line);
}
@media (min-width:768px){.countdown-bar{top:68px;}}
.countdown-inner{
  display:flex;flex-direction:column;gap:14px;padding:14px 0;
}
@media (min-width:768px){
  .countdown-inner{flex-direction:row;align-items:center;justify-content:space-between;gap:28px;padding:16px 0;}
}
.cd-cells{display:flex;align-items:stretch;gap:0;}
.cd-cell{
  min-width:74px;padding:2px 16px;text-align:center;position:relative;
}
.cd-cell + .cd-cell{border-left:1px solid var(--line);}
@media (min-width:768px){.cd-cell{min-width:92px;padding:2px 22px;}}
.cd-num{font-size:28px;font-weight:800;letter-spacing:-.03em;color:var(--brand);line-height:1.15;font-variant-numeric:tabular-nums;}
@media (min-width:768px){.cd-num{font-size:42px;}}
.cd-label{font-size:11px;color:var(--text-3);letter-spacing:.18em;margin-top:2px;}
.cd-side{font-size:13px;color:var(--text-2);line-height:1.7;}
.cd-side b{color:var(--text);font-weight:600;}
.cd-note{margin-top:2px;font-size:12px;color:var(--text-3);}
.countdown-bar.is-soon .cd-num{color:var(--warn);}

/* ---------- 今日看点 ---------- */
.watchlist{border-top:1px solid var(--line);}
.watch-row{
  display:grid;grid-template-columns:44px 1fr;gap:12px;align-items:start;
  padding:20px 0;border-bottom:1px solid var(--line);
  transition:background .2s var(--ease), padding-left .2s var(--ease);
}
@media (min-width:768px){.watch-row{grid-template-columns:72px 1fr 220px;gap:24px;align-items:center;padding:24px 0;}}
.watch-row:hover{background:rgba(242,239,232,.02);}
.watch-no{font-size:20px;font-weight:800;color:var(--brand);letter-spacing:-.02em;font-variant-numeric:tabular-nums;}
@media (min-width:768px){.watch-no{font-size:26px;}}
.watch-title{font-size:16px;font-weight:600;color:var(--text);}
@media (min-width:768px){.watch-title{font-size:18px;}}
.watch-desc{font-size:13px;color:var(--text-2);margin-top:4px;line-height:1.75;}
.watch-meta{font-size:12px;color:var(--text-3);letter-spacing:.1em;}
@media (max-width:767px){.watch-meta{grid-column:2;}}

/* ---------- 订阅表单 ---------- */
.subscribe-panel{
  background:var(--bg-2);border:1px solid var(--line);border-radius:var(--r-card);
  padding:24px;display:grid;gap:20px;
}
@media (min-width:768px){.subscribe-panel{padding:32px;grid-template-columns:1fr 1.1fr;align-items:center;gap:40px;}}
.subscribe-title{font-size:20px;font-weight:700;}
@media (min-width:768px){.subscribe-title{font-size:24px;}}
.subscribe-desc{font-size:14px;color:var(--text-2);margin-top:8px;line-height:1.85;}
.inline-form{display:flex;flex-direction:column;gap:12px;}
@media (min-width:560px){.inline-form{flex-direction:row;}}
.inline-form input{
  flex:1;height:48px;padding:0 16px;border-radius:var(--r-btn);
  background:var(--bg-3);border:1px solid var(--line-strong);color:var(--text);
  outline:none;transition:border-color .2s var(--ease), box-shadow .2s var(--ease);
}
.inline-form input::placeholder{color:var(--text-3);}
.inline-form input:focus{border-color:var(--brand);box-shadow:0 0 0 2px rgba(182,255,60,.35);}
.inline-form input.has-error{border-color:var(--warn);box-shadow:0 0 0 2px rgba(255,106,61,.3);}
.inline-form .btn{height:48px;white-space:nowrap;}
.form-msg{font-size:13px;margin-top:10px;display:none;}
.form-msg.err{color:var(--warn);display:block;}
.form-msg.ok{color:var(--brand);display:block;}
.privacy-note{font-size:12px;color:var(--text-3);margin-top:8px;line-height:1.7;}

/* ---------- 卡片 ---------- */
.card{
  background:var(--bg-3);border:1px solid var(--line);border-radius:var(--r-card);
  overflow:hidden;box-shadow:var(--shadow-card);
  transition:border-color .2s var(--ease), transform .2s var(--ease);
}
.card:hover{border-color:var(--line-strong);transform:translateY(-2px);}
.card-media{position:relative;aspect-ratio:16/9;overflow:hidden;background:var(--bg-2);}
.card-media img{width:100%;height:100%;object-fit:cover;transition:transform .3s var(--ease);}
.card:hover .card-media img{transform:scale(1.03);}
.card-media::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(11,13,12,0) 40%,rgba(11,13,12,.75) 100%);}
.card-duration{
  position:absolute;right:10px;bottom:10px;z-index:3;
  padding:3px 9px;border-radius:999px;background:rgba(11,13,12,.78);
  border:1px solid var(--line-strong);font-size:11px;color:var(--text);font-variant-numeric:tabular-nums;
}
.card-tag{position:absolute;left:10px;top:10px;z-index:3;}
.card-body{padding:18px;}
.card-title{font-size:16px;font-weight:600;line-height:1.5;}
.card-desc{font-size:13px;color:var(--text-2);margin-top:8px;line-height:1.8;}
.grid-4{display:grid;grid-template-columns:1fr;gap:16px;}
@media (min-width:640px){.grid-4{grid-template-columns:repeat(2,1fr);gap:20px;}}
@media (min-width:1024px){.grid-4{grid-template-columns:repeat(4,1fr);}}

/* ---------- CMS 资讯列表 ---------- */
.cms-feature{
  display:grid;grid-template-columns:1fr;gap:0;
  border:1px solid var(--line);border-radius:var(--r-card);overflow:hidden;background:var(--bg-3);
  transition:border-color .2s var(--ease), transform .2s var(--ease);
}
.cms-feature:hover{border-color:var(--line-strong);transform:translateY(-2px);}
@media (min-width:900px){.cms-feature{grid-template-columns:1.05fr 1fr;}}
.cms-feature .cms-media{position:relative;aspect-ratio:16/9;background:var(--bg-2);}
.cms-feature .cms-media img{width:100%;height:100%;object-fit:cover;}
.cms-feature-body{padding:24px;display:flex;flex-direction:column;justify-content:center;gap:12px;}
@media (min-width:900px){.cms-feature-body{padding:32px;}}
.cms-feature-title{font-size:20px;font-weight:700;line-height:1.45;}
@media (min-width:768px){.cms-feature-title{font-size:24px;}}
.cms-list{border-top:1px solid var(--line);}
.cms-row{
  display:block;padding:20px 0;border-bottom:1px solid var(--line);
  transition:padding-left .2s var(--ease), background .2s var(--ease);
}
.cms-row:hover{background:rgba(242,239,232,.02);padding-left:8px;}
.cms-row-head{display:flex;align-items:center;gap:10px;flex-wrap:wrap;}
.cms-row-title{font-size:17px;font-weight:600;line-height:1.5;margin-top:10px;transition:color .2s var(--ease);}
.cms-row:hover .cms-row-title{color:var(--brand);}
.cms-row-desc{font-size:14px;color:var(--text-2);margin-top:8px;line-height:1.8;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.cms-row-foot{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-top:12px;}
.cms-date{font-size:12px;color:var(--text-3);font-variant-numeric:tabular-nums;letter-spacing:.04em;}
.cms-arrow{font-size:13px;color:var(--text-3);transition:transform .2s var(--ease), color .2s var(--ease);}
.cms-row:hover .cms-arrow,.cms-feature:hover .cms-arrow{color:var(--brand);transform:translateX(4px);}
.empty-state{
  padding:56px 24px;text-align:center;border:1px dashed var(--line-strong);border-radius:var(--r-card);
  background:var(--bg-2);
}
.empty-state .ico{font-size:28px;color:var(--text-3);margin-bottom:12px;}
.empty-state p{font-size:14px;color:var(--text-2);}
.empty-state a{display:inline-block;margin-top:16px;font-size:13px;color:var(--brand);border-bottom:1px solid rgba(182,255,60,.4);}

/* ---------- 时间轴 ---------- */
.timeline{display:grid;grid-template-columns:1fr;gap:0;border-top:1px solid var(--line);}
@media (min-width:900px){.timeline{grid-template-columns:repeat(3,1fr);border-top:none;}}
.tl-item{
  position:relative;padding:26px 0 26px 0;border-bottom:1px solid var(--line);
}
@media (min-width:900px){
  .tl-item{padding:0 28px 0 0;border-bottom:none;}
  .tl-item + .tl-item{padding-left:28px;border-left:1px solid var(--line);}
}
.tl-no{
  display:inline-flex;align-items:center;justify-content:center;
  width:38px;height:38px;border-radius:999px;border:1px solid var(--line-strong);
  color:var(--brand);font-size:14px;font-weight:800;font-variant-numeric:tabular-nums;
  background:rgba(182,255,60,.07);
}
.tl-title{font-size:18px;font-weight:600;margin-top:16px;}
.tl-desc{font-size:14px;color:var(--text-2);margin-top:8px;line-height:1.85;}

/* ---------- 数据条 ---------- */
.stats{display:grid;grid-template-columns:repeat(2,1fr);gap:24px;}
@media (min-width:768px){.stats{grid-template-columns:repeat(4,1fr);gap:32px;}}
.stat-num{font-size:32px;font-weight:800;letter-spacing:-.03em;color:var(--text);font-variant-numeric:tabular-nums;}
@media (min-width:768px){.stat-num{font-size:44px;}}
.stat-num em{font-style:normal;font-size:16px;color:var(--brand);margin-left:4px;font-weight:700;}
.stat-label{font-size:13px;color:var(--text-3);margin-top:6px;letter-spacing:.02em;}

/* ---------- FAQ ---------- */
.faq-group{border:1px solid var(--line);border-radius:var(--r-card);overflow:hidden;background:var(--bg-2);}
.faq-item + .faq-item{border-top:1px solid var(--line);}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
  min-height:64px;padding:16px 20px;background:transparent;border:none;cursor:pointer;
  text-align:left;color:var(--text);font-size:16px;font-weight:600;line-height:1.6;
  transition:color .2s var(--ease), background .2s var(--ease);
}
.faq-q:hover{color:var(--brand);background:rgba(242,239,232,.02);}
.faq-q:focus-visible{outline:2px solid var(--brand);outline-offset:-2px;}
.faq-sign{position:relative;flex:0 0 16px;height:16px;transition:transform .2s var(--ease);}
.faq-sign::before,.faq-sign::after{
  content:"";position:absolute;left:0;top:50%;width:16px;height:1.5px;background:var(--brand);border-radius:2px;transform:translateY(-50%);
}
.faq-sign::after{transform:translateY(-50%) rotate(90deg);transition:transform .2s var(--ease), opacity .2s var(--ease);}
.faq-item.open .faq-sign{transform:rotate(180deg);}
.faq-item.open .faq-sign::after{transform:translateY(-50%) rotate(0deg);opacity:0;}
.faq-a{max-height:0;overflow:hidden;opacity:0;transition:max-height .28s var(--ease), opacity .28s var(--ease);}
.faq-item.open .faq-a{max-height:320px;opacity:1;}
.faq-a-inner{padding:0 20px 22px;font-size:14px;color:var(--text-2);line-height:1.9;}

/* ---------- CTA ---------- */
.cta-band{
  background:var(--brand);color:var(--brand-ink);border-radius:var(--r-card);
  padding:28px 24px;display:flex;flex-direction:column;gap:20px;
}
@media (min-width:768px){.cta-band{flex-direction:row;align-items:center;justify-content:space-between;padding:36px 40px;gap:40px;}}
.cta-band h2{font-size:22px;color:var(--brand-ink);line-height:1.3;}
@media (min-width:768px){.cta-band h2{font-size:28px;}}
.cta-band p{font-size:14px;color:rgba(11,13,12,.72);margin-top:8px;line-height:1.75;}
.btn-dark{background:var(--brand-ink);color:var(--brand);border-color:var(--brand-ink);}
.btn-dark:hover{background:#000;border-color:#000;transform:translateY(-1px);color:#fff;}

/* ---------- 页脚 ---------- */
.site-footer{border-top:1px solid var(--line);background:var(--bg-2);margin-top:8px;}
.footer-grid{display:grid;grid-template-columns:1fr;gap:36px;padding:48px 0 36px;}
@media (min-width:640px){.footer-grid{grid-template-columns:repeat(2,1fr);}}
@media (min-width:1024px){.footer-grid{grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:40px;}}
.footer-brand{font-size:18px;font-weight:800;letter-spacing:-.02em;}
.footer-brand span{color:var(--brand);font-size:13px;font-weight:600;margin-left:6px;}
.footer-text{font-size:13px;color:var(--text-2);margin-top:14px;line-height:1.85;max-width:320px;}
.footer-h{font-size:12px;letter-spacing:.18em;color:var(--text-3);margin-bottom:16px;}
.footer-link{display:block;font-size:14px;color:var(--text-2);padding:6px 0;transition:color .2s var(--ease), padding-left .2s var(--ease);}
.footer-link:hover{color:var(--brand);padding-left:5px;}
.footer-contact{font-size:13px;color:var(--text-2);line-height:2;}
.footer-bottom{
  border-top:1px solid var(--line);padding:20px 0 28px;
  display:flex;flex-direction:column;gap:10px;
  font-size:12px;color:var(--text-3);line-height:1.8;
}
@media (min-width:768px){.footer-bottom{flex-direction:row;align-items:center;justify-content:space-between;gap:24px;}}
.footer-bottom a{color:var(--text-3);}
.footer-bottom a:hover{color:var(--brand);}

/* ---------- 动效 ---------- */
.reveal{opacity:0;transform:translateY(12px);transition:opacity .6s var(--ease), transform .6s var(--ease);}
.reveal.in{opacity:1;transform:none;}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;}
@media (prefers-reduced-motion: reduce){
  *{animation:none !important;transition:none !important;}
  .reveal{opacity:1 !important;transform:none !important;}
  html{scroll-behavior:auto;}
}

/* roulang page: article */
:root{
  --bg:#0B0D0C;
  --bg-2:#121614;
  --bg-3:#1A1F1C;
  --line:rgba(242,239,232,.10);
  --line-strong:rgba(242,239,232,.18);
  --text:#F2EFE8;
  --text-2:#A8B0AA;
  --text-3:#6E7672;
  --brand:#B6FF3C;
  --brand-ink:#0B0D0C;
  --warn:#FF6A3D;
  --radius-card:10px;
  --radius-btn:6px;
  --radius-pill:999px;
  --shadow-card:0 1px 0 rgba(255,255,255,.04) inset, 0 20px 40px -24px rgba(0,0,0,.65);
  --shadow-float:0 24px 60px -20px rgba(0,0,0,.7);
  --ease:cubic-bezier(.2,.7,.3,1);
  --header-h:68px;
}
*,*::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:"PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,sans-serif;
  font-size:16px;
  line-height:1.9;
  letter-spacing:0;
  overflow-x:hidden;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;}
button,input{font:inherit;color:inherit;}
button{background:none;border:0;cursor:pointer;}
h1,h2,h3,h4,p,ul,ol,figure,blockquote{margin:0;}
ul,ol{padding:0;list-style:none;}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;border-radius:4px;}
::selection{background:var(--brand);color:var(--brand-ink);}
.num{font-variant-numeric:tabular-nums;letter-spacing:-.03em;}

.container-x{
  width:100%;
  max-width:1200px;
  margin:0 auto;
  padding-left:20px;
  padding-right:20px;
}
@media (min-width:768px){
  .container-x{padding-left:32px;padding-right:32px;}
}

/* ---------- Header ---------- */
.site-header{
  position:sticky;
  top:0;
  z-index:60;
  background:rgba(11,13,12,.78);
  border-bottom:1px solid transparent;
  transition:background .25s var(--ease), border-color .25s var(--ease), backdrop-filter .25s var(--ease);
}
.site-header.is-scrolled{
  background:rgba(11,13,12,.92);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  border-bottom-color:var(--line);
}
.header-inner{
  display:flex;
  align-items:center;
  gap:20px;
  height:var(--header-h);
}
.brand{display:inline-flex;align-items:baseline;gap:6px;flex-shrink:0;}
.brand-main{font-size:19px;font-weight:800;letter-spacing:-.02em;color:var(--text);}
.brand-sep{color:var(--line-strong);font-weight:400;}
.brand-sub{font-size:11px;letter-spacing:.16em;color:var(--text-2);}
.nav-desktop{display:none;align-items:center;gap:2px;margin-left:6px;}
.nav-link{
  position:relative;
  display:inline-block;
  padding:8px 14px;
  font-size:14.5px;
  color:var(--text-2);
  border-radius:var(--radius-btn);
  transition:color .2s var(--ease);
}
.nav-link::after{
  content:"";
  position:absolute;
  left:14px;right:14px;bottom:2px;
  height:2px;
  background:var(--brand);
  transform:scaleX(0);
  transform-origin:left;
  transition:transform .22s var(--ease);
}
.nav-link:hover{color:var(--text);}
.nav-link:hover::after{transform:scaleX(1);}
.nav-link.is-active{color:var(--brand);}
.nav-link.is-active::after{transform:scaleX(1);}
.header-actions{margin-left:auto;display:flex;align-items:center;gap:14px;}
.header-textlink{
  display:none;
  font-size:14px;
  color:var(--text-2);
  background-image:linear-gradient(var(--brand),var(--brand));
  background-repeat:no-repeat;
  background-size:0 1px;
  background-position:0 100%;
  transition:color .2s var(--ease), background-size .25s var(--ease);
  padding-bottom:2px;
}
.header-textlink:hover{color:var(--text);background-size:100% 1px;}
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  height:44px;
  padding:0 20px;
  border-radius:var(--radius-btn);
  border:1px solid transparent;
  font-size:15px;
  font-weight:600;
  letter-spacing:.01em;
  transition:filter .2s var(--ease), transform .2s var(--ease), border-color .2s var(--ease), background-color .2s var(--ease), color .2s var(--ease);
  white-space:nowrap;
}
.btn .arrow{transition:transform .22s var(--ease);}
.btn:hover .arrow{transform:translateX(4px);}
.btn-primary{background:var(--brand);color:var(--brand-ink);}
.btn-primary:hover{filter:brightness(1.08);}
.btn-ghost{border-color:var(--line-strong);color:var(--text);background:transparent;}
.btn-ghost:hover{border-color:var(--brand);color:var(--brand);}
.btn-ink{background:var(--brand-ink);color:var(--brand);}
.btn-ink:hover{filter:brightness(1.15);}
.btn-sm{height:38px;padding:0 16px;font-size:14px;}
.burger{
  display:inline-flex;
  flex-direction:column;
  justify-content:center;
  gap:5px;
  width:44px;height:44px;
  padding:0 10px;
  border-radius:var(--radius-btn);
  border:1px solid var(--line);
}
.burger span{display:block;height:1.6px;background:var(--text);border-radius:2px;transition:transform .25s var(--ease),opacity .2s var(--ease);}
@media (min-width:1024px){
  .nav-desktop{display:flex;}
  .header-textlink{display:inline-block;}
  .burger{display:none;}
}

/* ---------- Drawer ---------- */
.drawer-mask{
  position:fixed;inset:0;
  background:rgba(5,6,6,.7);
  backdrop-filter:blur(2px);
  opacity:0;visibility:hidden;
  transition:opacity .28s var(--ease),visibility .28s var(--ease);
  z-index:70;
}
.drawer-mask.is-open{opacity:1;visibility:visible;}
.drawer{
  position:fixed;
  top:0;right:0;
  width:282px;
  max-width:86vw;
  height:100%;
  background:var(--bg-2);
  border-left:1px solid var(--line);
  box-shadow:var(--shadow-float);
  transform:translateX(100%);
  transition:transform .28s var(--ease);
  z-index:71;
  display:flex;
  flex-direction:column;
  padding:22px 22px 28px;
  overflow-y:auto;
}
.drawer.is-open{transform:translateX(0);}
.drawer-head{display:flex;align-items:center;justify-content:space-between;padding-bottom:18px;border-bottom:1px solid var(--line);}
.drawer-close{width:40px;height:40px;border-radius:var(--radius-btn);border:1px solid var(--line);display:inline-flex;align-items:center;justify-content:center;font-size:18px;color:var(--text-2);}
.drawer-close:hover{border-color:var(--line-strong);color:var(--text);}
.drawer-nav{display:flex;flex-direction:column;padding:16px 0;border-bottom:1px solid var(--line);}
.drawer-nav a{padding:13px 2px;font-size:16px;color:var(--text-2);border-bottom:1px solid var(--line);}
.drawer-nav a:last-child{border-bottom:0;}
.drawer-nav a.is-active{color:var(--brand);}
.drawer-cta{margin-top:20px;display:flex;flex-direction:column;gap:10px;}
.drawer-note{margin-top:auto;padding-top:22px;font-size:12px;color:var(--text-3);line-height:1.7;}

/* ---------- Article head ---------- */
.article-hero{
  position:relative;
  border-bottom:1px solid var(--line);
  padding:34px 0 38px;
  background-image:linear-gradient(rgba(11,13,12,.94),rgba(11,13,12,.97)),url("/assets/images/backpic/back-1.webp");
  background-size:cover;
  background-position:center;
}
.breadcrumb{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:8px;
  font-size:13px;
  color:var(--text-3);
}
.breadcrumb a{color:var(--text-3);transition:color .2s var(--ease);}
.breadcrumb a:hover{color:var(--brand);}
.breadcrumb .sep{color:var(--line-strong);}
.breadcrumb .current{color:var(--text-2);max-width:min(560px,70vw);overflow:hidden;text-overflow:ellipsis;white-space:nowrap;}
.chip{
  display:inline-flex;
  align-items:center;
  padding:4px 12px;
  border-radius:var(--radius-pill);
  border:1px solid rgba(182,255,60,.32);
  background:rgba(182,255,60,.08);
  color:var(--brand);
  font-size:12px;
  letter-spacing:.18em;
  line-height:1.6;
}
.article-title{
  margin:18px 0 14px;
  font-size:clamp(28px,4.2vw,44px);
  line-height:1.15;
  font-weight:800;
  letter-spacing:-.02em;
  max-width:900px;
}
.article-meta{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:10px;
  font-size:13px;
  color:var(--text-3);
}
.article-meta .dot{width:3px;height:3px;border-radius:50%;background:var(--line-strong);}

/* ---------- Article layout ---------- */
.article-shell{padding:40px 0 0;}
.article-grid{
  display:grid;
  grid-template-columns:minmax(0,1fr);
  gap:40px;
}
.article-main{
  width:100%;
  max-width:720px;
  margin:0 auto;
  min-width:0;
}
.article-body{font-size:16px;line-height:1.9;color:var(--text);}
.article-body > *{margin-bottom:1.4em;}
.article-body > *:last-child{margin-bottom:0;}
.article-body p{color:var(--text);}
.article-body > p:first-of-type{font-size:18px;line-height:1.85;font-weight:500;}
.article-body h2{
  font-size:clamp(23px,2.6vw,31px);
  line-height:1.25;
  font-weight:700;
  letter-spacing:-.02em;
  margin-top:2.4em;
  margin-bottom:.6em;
  padding-top:.2em;
}
.article-body h3{
  font-size:21px;
  line-height:1.35;
  font-weight:600;
  letter-spacing:-.01em;
  margin-top:1.9em;
  margin-bottom:.5em;
}
.article-body h4{
  font-size:17px;
  font-weight:600;
  margin-top:1.6em;
  margin-bottom:.4em;
}
.article-body a{
  color:var(--brand);
  background-image:linear-gradient(var(--brand),var(--brand));
  background-repeat:no-repeat;
  background-size:100% 1px;
  background-position:0 100%;
  transition:opacity .2s var(--ease);
}
.article-body a:hover{opacity:.78;}
.article-body strong{color:#fff;font-weight:600;}
.article-body blockquote{
  border-left:3px solid var(--brand);
  padding:6px 0 6px 18px;
  color:var(--text-2);
  font-size:15.5px;
}
.article-body ul,
.article-body ol{margin-bottom:1.4em;}
.article-body ul li,
.article-body ol li{
  position:relative;
  padding-left:20px;
  margin-bottom:.55em;
  color:var(--text-2);
}
.article-body ul li::before{
  content:"";
  position:absolute;
  left:4px;top:.82em;
  width:5px;height:5px;
  border-radius:50%;
  background:var(--brand);
}
.article-body ol{counter-reset:item;}
.article-body ol li{counter-increment:item;}
.article-body ol li::before{
  content:counter(item,decimal-leading-zero);
  position:absolute;
  left:0;top:0;
  font-size:12px;
  color:var(--brand);
  font-variant-numeric:tabular-nums;
}
.article-body img{
  border-radius:8px;
  width:100%;
  height:auto;
  margin:1.8em 0 .8em;
}
.article-body figure{margin:1.8em 0;}
.article-body figure img{margin:0 0 10px;}
.article-body figcaption{
  text-align:center;
  font-size:12px;
  color:var(--text-3);
  line-height:1.7;
}
.article-body table{
  width:100%;
  border-collapse:collapse;
  border:1px solid var(--line);
  font-size:15px;
  display:block;
  overflow-x:auto;
}
.article-body th,
.article-body td{
  border:1px solid var(--line);
  padding:11px 14px;
  text-align:left;
  vertical-align:top;
}
.article-body th{color:var(--text);font-weight:600;background:var(--bg-2);}
.article-body td{color:var(--text-2);}
.article-body hr{border:0;border-top:1px solid var(--line);margin:2.2em 0;}

/* ---------- TOC ---------- */
.article-toc{display:none;}
@media (min-width:1280px){
  .article-grid{grid-template-columns:minmax(0,1fr) 200px;gap:56px;}
  .article-toc{
    display:block;
    position:sticky;
    top:calc(var(--header-h) + 28px);
    align-self:start;
    font-size:13.5px;
  }
}
.toc-title{
  font-size:12px;
  letter-spacing:.18em;
  color:var(--text-3);
  padding-bottom:12px;
  border-bottom:1px solid var(--line);
  margin-bottom:12px;
}
.toc-list a{
  display:block;
  padding:7px 0 7px 12px;
  color:var(--text-2);
  border-left:2px solid transparent;
  transition:color .2s var(--ease), border-color .2s var(--ease);
}
.toc-list a:hover{color:var(--text);border-left-color:var(--brand);}

/* ---------- Article footer blocks ---------- */
.block-divider{border-top:1px solid var(--line);margin:56px 0 0;}
.tag-row{
  display:flex;
  flex-wrap:wrap;
  gap:10px;
  padding:26px 0;
}
.tag{
  display:inline-flex;
  align-items:center;
  padding:6px 14px;
  border-radius:var(--radius-pill);
  border:1px solid var(--line);
  background:var(--bg-2);
  font-size:13px;
  color:var(--text-2);
  transition:border-color .2s var(--ease), color .2s var(--ease);
}
.tag:hover{border-color:var(--line-strong);color:var(--text);}
.share-row{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:12px;
  padding-bottom:30px;
}
.share-label{font-size:13px;color:var(--text-3);margin-right:2px;}
.share-btn{
  display:inline-flex;
  align-items:center;
  gap:6px;
  height:38px;
  padding:0 16px;
  border-radius:var(--radius-btn);
  border:1px solid var(--line);
  background:var(--bg-2);
  font-size:13.5px;
  color:var(--text-2);
  transition:border-color .2s var(--ease), color .2s var(--ease), transform .2s var(--ease);
}
.share-btn:hover{border-color:var(--brand);color:var(--brand);transform:translateY(-1px);}

.section-head{display:flex;align-items:baseline;gap:14px;margin-bottom:22px;}
.section-no{
  font-size:12px;
  letter-spacing:.18em;
  color:var(--brand);
  font-variant-numeric:tabular-nums;
}
.section-title{font-size:clamp(20px,2.4vw,26px);font-weight:700;letter-spacing:-.02em;line-height:1.3;}
.related-list{border-top:1px solid var(--line);}
.related-item{
  display:flex;
  align-items:center;
  gap:18px;
  padding:20px 4px;
  border-bottom:1px solid var(--line);
  transition:background-color .2s var(--ease), padding-left .2s var(--ease);
}
.related-item:hover{background:rgba(242,239,232,.02);padding-left:10px;}
.related-item::before{
  content:"";
  width:2px;
  align-self:stretch;
  background:var(--brand);
  border-radius:2px;
  flex-shrink:0;
}
.related-body{flex:1;min-width:0;}
.related-title{
  font-size:17px;
  font-weight:600;
  line-height:1.5;
  color:var(--text);
  margin-bottom:6px;
  transition:color .2s var(--ease);
}
.related-item:hover .related-title{color:var(--brand);}
.related-meta{font-size:13px;color:var(--text-3);display:flex;gap:10px;flex-wrap:wrap;}
.related-arrow{color:var(--text-3);font-size:18px;transition:transform .22s var(--ease), color .2s var(--ease);}
.related-item:hover .related-arrow{transform:translateX(4px);color:var(--brand);}

.back-row{
  display:flex;
  flex-wrap:wrap;
  gap:12px;
  padding:30px 0 8px;
}

/* ---------- Empty state ---------- */
.empty-state{
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  background:var(--bg-2);
  padding:56px 24px;
  text-align:center;
}
.empty-state .icon{
  width:52px;height:52px;
  margin:0 auto 18px;
  border-radius:50%;
  border:1px solid var(--line-strong);
  display:flex;align-items:center;justify-content:center;
  color:var(--brand);
  font-size:20px;
}
.empty-title{font-size:20px;font-weight:700;margin-bottom:10px;}
.empty-desc{font-size:14.5px;color:var(--text-2);max-width:420px;margin:0 auto 22px;line-height:1.8;}

/* ---------- CTA band ---------- */
.cta-band{margin:72px auto;padding:0 20px;}
@media (min-width:768px){.cta-band{padding:0 32px;}}
.cta-inner{
  background:var(--brand);
  color:var(--brand-ink);
  border-radius:var(--radius-card);
  padding:32px 28px;
  display:flex;
  flex-direction:column;
  gap:22px;
  box-shadow:var(--shadow-card);
}
@media (min-width:900px){
  .cta-inner{flex-direction:row;align-items:center;justify-content:space-between;padding:38px 40px;gap:40px;}
}
.cta-inner h2{font-size:clamp(20px,2.6vw,28px);font-weight:800;line-height:1.3;letter-spacing:-.02em;margin-bottom:8px;}
.cta-inner p{font-size:14.5px;color:rgba(11,13,12,.78);max-width:520px;line-height:1.75;}
.cta-form{display:flex;flex-direction:column;gap:10px;width:100%;max-width:420px;}
@media (min-width:520px){.cta-form{flex-direction:row;gap:10px;align-items:center;}}
.cta-form input{
  flex:1;
  height:48px;
  min-width:0;
  padding:0 14px;
  border-radius:var(--radius-btn);
  border:1px solid rgba(11,13,12,.25);
  background:rgba(255,255,255,.55);
  color:var(--brand-ink);
  font-size:15px;
  transition:border-color .2s var(--ease), box-shadow .2s var(--ease);
}
.cta-form input::placeholder{color:rgba(11,13,12,.5);}
.cta-form input:focus{outline:none;border-color:var(--brand-ink);box-shadow:0 0 0 2px rgba(11,13,12,.35);}
.cta-form .btn{height:48px;background:var(--brand-ink);color:var(--brand);}
.cta-note{font-size:12px;color:rgba(11,13,12,.62);margin-top:12px;}
.cta-msg{font-size:13px;font-weight:600;color:var(--brand-ink);margin-top:8px;display:none;}
.cta-msg.is-show{display:block;}

/* ---------- To top ---------- */
.to-top{
  position:fixed;
  right:18px;
  bottom:20px;
  width:46px;height:46px;
  border-radius:var(--radius-btn);
  border:1px solid var(--line-strong);
  background:rgba(18,22,20,.92);
  color:var(--text-2);
  display:flex;align-items:center;justify-content:center;
  box-shadow:var(--shadow-float);
  opacity:0;visibility:hidden;
  transition:opacity .25s var(--ease), visibility .25s var(--ease), color .2s var(--ease), border-color .2s var(--ease);
  z-index:55;
  font-size:16px;
}
.to-top.is-show{opacity:1;visibility:visible;}
.to-top:hover{color:var(--brand);border-color:var(--brand);}
@media (min-width:1280px){.to-top{display:none;}}

/* ---------- Footer ---------- */
.site-footer{margin-top:80px;border-top:1px solid var(--line);background:var(--bg-2);padding:56px 0 28px;}
.footer-grid{display:grid;grid-template-columns:1fr;gap:34px;}
@media (min-width:640px){.footer-grid{grid-template-columns:repeat(2,minmax(0,1fr));}}
@media (min-width:1024px){.footer-grid{grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:40px;}}
.footer-brand{font-size:18px;font-weight:800;letter-spacing:-.02em;margin-bottom:12px;}
.footer-brand span{font-size:12px;font-weight:500;letter-spacing:.14em;color:var(--text-2);margin-left:6px;}
.footer-text{font-size:13.5px;color:var(--text-2);line-height:1.85;max-width:330px;}
.footer-h{font-size:12px;letter-spacing:.18em;color:var(--text-3);margin-bottom:14px;}
.footer-link{
  display:block;
  font-size:14px;
  color:var(--text-2);
  padding:5px 0;
  transition:color .2s var(--ease), transform .2s var(--ease);
}
.footer-link:hover{color:var(--brand);transform:translateX(3px);}
.footer-contact{font-size:13.5px;color:var(--text-2);line-height:2;}
.footer-bottom{
  margin-top:40px;
  padding-top:20px;
  border-top:1px solid var(--line);
  display:flex;
  flex-direction:column;
  gap:8px;
  font-size:12px;
  color:var(--text-3);
  line-height:1.8;
}
@media (min-width:768px){
  .footer-bottom{flex-direction:row;align-items:center;justify-content:space-between;}
}

/* ---------- Motion ---------- */
.reveal{opacity:0;transform:translateY(12px);transition:opacity .6s var(--ease), transform .6s var(--ease);}
.reveal.in{opacity:1;transform:none;}
@media (prefers-reduced-motion: reduce){
  *{animation:none !important;transition:none !important;}
  .reveal{opacity:1;transform:none;}
  html{scroll-behavior:auto;}
}

/* roulang page: category1 */
:root{
  --bg:#0B0D0C;
  --bg-2:#121614;
  --bg-3:#1A1F1C;
  --line:rgba(242,239,232,.10);
  --line-strong:rgba(242,239,232,.18);
  --text:#F2EFE8;
  --text-2:#A8B0AA;
  --text-3:#6E7672;
  --brand:#B6FF3C;
  --brand-ink:#0B0D0C;
  --warn:#FF6A3D;
  --radius-card:10px;
  --radius-btn:6px;
  --radius-pill:999px;
  --shadow-card:0 1px 0 rgba(255,255,255,.04) inset, 0 20px 40px -24px rgba(0,0,0,.65);
  --shadow-float:0 24px 60px -20px rgba(0,0,0,.7);
  --ease:cubic-bezier(.2,.7,.3,1);
  --header-h:68px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
html body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei","Noto Sans SC","Helvetica Neue",Arial,sans-serif;
  font-size:16px;
  line-height:1.9;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;}
button,input{font-family:inherit;font-size:inherit;}
h1,h2,h3,h4,p,figure,ul,ol{margin:0;}
ul,ol{padding:0;list-style:none;}
.num{font-variant-numeric:tabular-nums;}

.container-x{max-width:1200px;margin:0 auto;padding-left:20px;padding-right:20px;width:100%;}
@media (min-width:768px){.container-x{padding-left:32px;padding-right:32px;}}

:focus-visible{outline:2px solid var(--brand);outline-offset:2px;border-radius:4px;}

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(11,13,12,.96);
  border-bottom:1px solid transparent;
  transition:background .25s var(--ease),border-color .25s var(--ease),backdrop-filter .25s var(--ease);
}
.site-header.is-scrolled{
  background:rgba(11,13,12,.85);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  border-bottom-color:var(--line);
}
.header-inner{
  height:var(--header-h);
  display:flex;align-items:center;justify-content:space-between;gap:20px;
}
.brand{display:inline-flex;align-items:baseline;gap:6px;font-weight:700;letter-spacing:-.02em;font-size:18px;white-space:nowrap;}
.brand-main{color:var(--text);}
.brand-sep{color:var(--line-strong);font-weight:400;}
.brand-sub{color:var(--brand);font-size:13px;letter-spacing:.06em;}
.nav-desktop{display:none;align-items:center;gap:4px;}
@media (min-width:1024px){.nav-desktop{display:flex;}}
.nav-link{
  position:relative;
  padding:8px 14px;
  font-size:15px;
  color:var(--text-2);
  border-radius:var(--radius-pill);
  background-image:linear-gradient(var(--brand),var(--brand));
  background-repeat:no-repeat;
  background-position:left bottom;
  background-size:0% 2px;
  transition:color .2s var(--ease),background-size .25s var(--ease);
}
.nav-link:hover{color:var(--text);background-size:60% 2px;}
.nav-link.is-active{color:var(--brand);background-size:60% 2px;}
.header-actions{display:flex;align-items:center;gap:12px;}
.header-textlink{
  display:none;font-size:14px;color:var(--text-2);
  border-bottom:1px solid transparent;transition:color .2s var(--ease),border-color .2s var(--ease);
}
@media (min-width:768px){.header-textlink{display:inline-block;}}
.header-textlink:hover{color:var(--brand);border-bottom-color:var(--brand);}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  border-radius:var(--radius-btn);
  border:1px solid transparent;
  padding:13px 22px;
  font-size:15px;font-weight:600;letter-spacing:.01em;
  cursor:pointer;
  transition:transform .2s var(--ease),filter .2s var(--ease),border-color .2s var(--ease),background-color .2s var(--ease),color .2s var(--ease);
}
.btn-sm{padding:9px 16px;font-size:14px;}
.btn-primary{background:var(--brand);color:var(--brand-ink);}
.btn-primary:hover{filter:brightness(1.08);transform:translateY(-1px);}
.btn-ghost{background:transparent;color:var(--text);border-color:var(--line-strong);}
.btn-ghost:hover{border-color:var(--brand);color:var(--brand);transform:translateY(-1px);}
.btn .arrow{display:inline-block;transition:transform .2s var(--ease);}
.btn:hover .arrow{transform:translateX(4px);}
.burger{
  width:44px;height:44px;display:inline-flex;flex-direction:column;justify-content:center;align-items:center;gap:6px;
  background:transparent;border:1px solid var(--line);border-radius:var(--radius-btn);cursor:pointer;
}
.burger span{display:block;width:18px;height:1.5px;background:var(--text);transition:transform .25s var(--ease),opacity .25s var(--ease);}
@media (min-width:1024px){.burger{display:none;}}
.burger.is-open span:nth-child(1){transform:translateY(3.75px) rotate(45deg);}
.burger.is-open span:nth-child(2){transform:translateY(-3.75px) rotate(-45deg);}

/* ---------- drawer ---------- */
.drawer-mask{
  position:fixed;inset:0;background:rgba(5,6,5,.66);z-index:70;
  opacity:0;pointer-events:none;transition:opacity .28s var(--ease);
}
.drawer-mask.is-open{opacity:1;pointer-events:auto;}
.mobile-drawer{
  position:fixed;top:0;right:0;height:100%;width:290px;max-width:88vw;z-index:80;
  background:var(--bg-2);border-left:1px solid var(--line);
  transform:translateX(100%);transition:transform .28s var(--ease);
  padding:22px 22px 32px;display:flex;flex-direction:column;gap:22px;overflow-y:auto;
}
.mobile-drawer.is-open{transform:translateX(0);}
.drawer-head{display:flex;align-items:center;justify-content:space-between;}
.drawer-title{font-size:15px;font-weight:700;letter-spacing:-.01em;}
.drawer-close{width:40px;height:40px;border-radius:var(--radius-btn);border:1px solid var(--line);background:transparent;color:var(--text-2);cursor:pointer;font-size:18px;line-height:1;}
.drawer-close:hover{color:var(--brand);border-color:var(--line-strong);}
.drawer-nav{display:flex;flex-direction:column;}
.drawer-nav a{
  padding:15px 2px;font-size:16px;color:var(--text-2);border-bottom:1px solid var(--line);
  display:flex;align-items:center;justify-content:space-between;
}
.drawer-nav a:hover{color:var(--text);}
.drawer-nav a.is-active{color:var(--brand);}
.drawer-nav a::after{content:"→";font-size:13px;color:var(--text-3);}
.drawer-cta{display:flex;flex-direction:column;gap:10px;}
.drawer-note{font-size:12px;color:var(--text-3);line-height:1.7;}

/* ---------- page hero ---------- */
.page-hero{
  position:relative;
  border-bottom:1px solid var(--line);
  background-image:url('/assets/images/backpic/back-1.webp');
  background-size:cover;background-position:center;
  overflow:hidden;
}
.page-hero::before{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(11,13,12,.88) 0%,rgba(11,13,12,.93) 60%,rgba(11,13,12,.99) 100%);
}
.page-hero > .container-x{position:relative;z-index:1;padding-top:36px;padding-bottom:56px;}
@media (min-width:768px){.page-hero > .container-x{padding-top:48px;padding-bottom:76px;}}
.crumb{font-size:13px;color:var(--text-3);display:flex;flex-wrap:wrap;gap:8px;align-items:center;}
.crumb a{color:var(--text-3);}
.crumb a:hover{color:var(--brand);}
.crumb .sep{color:var(--line-strong);}
.tag-row{margin-top:26px;display:flex;flex-wrap:wrap;gap:10px;}
.tag{
  display:inline-flex;align-items:center;gap:6px;
  font-size:12px;letter-spacing:.18em;text-transform:uppercase;
  color:var(--text-2);border:1px solid var(--line);border-radius:var(--radius-pill);padding:5px 12px;
}
.tag-brand{color:var(--brand);border-color:rgba(182,255,60,.35);}
.page-hero h1{
  margin-top:18px;
  font-size:34px;line-height:1.14;font-weight:800;letter-spacing:-.02em;
  max-width:16em;
}
@media (min-width:768px){.page-hero h1{font-size:50px;}}
@media (min-width:1024px){.page-hero h1{font-size:58px;}}
.hero-rule{width:48px;height:2px;background:var(--brand);margin:22px 0 20px;}
.hero-sub{color:var(--text-2);font-size:16px;max-width:44em;}
@media (min-width:768px){.hero-sub{font-size:17px;}}
.hero-actions{margin-top:30px;display:flex;flex-wrap:wrap;gap:12px;}
@media (max-width:520px){
  .hero-actions{flex-direction:column;}
  .hero-actions .btn{width:100%;}
}
.hero-facts{
  margin-top:38px;display:grid;gap:0;border-top:1px solid var(--line);
}
@media (min-width:768px){.hero-facts{grid-template-columns:repeat(3,1fr);}}
.hero-fact{padding:18px 0;border-bottom:1px solid var(--line);}
@media (min-width:768px){
  .hero-fact{border-bottom:none;border-right:1px solid var(--line);padding-right:24px;}
  .hero-fact:last-child{border-right:none;}
  .hero-fact + .hero-fact{padding-left:24px;}
}
.hero-fact dt{font-size:12px;letter-spacing:.18em;color:var(--text-3);}
.hero-fact dd{margin:6px 0 0;font-size:15px;color:var(--text);}

/* ---------- sections ---------- */
.section{padding:56px 0;}
@media (min-width:768px){.section{padding:88px 0;}}
.section + .section{border-top:1px solid var(--line);}
.sec-num{font-size:12px;letter-spacing:.18em;color:var(--brand);font-variant-numeric:tabular-nums;}
.sec-title{margin-top:10px;font-size:28px;line-height:1.2;font-weight:700;letter-spacing:-.02em;}
@media (min-width:768px){.sec-title{font-size:36px;}}
.sec-lead{margin-top:14px;color:var(--text-2);max-width:52em;font-size:15.5px;}
.sec-head{margin-bottom:36px;}

.grid-steps{display:grid;gap:36px;}
@media (min-width:1024px){.grid-steps{grid-template-columns:1fr 340px;gap:48px;align-items:start;}}

/* steps timeline */
.steps{margin-top:8px;}
.step{
  position:relative;
  display:grid;grid-template-columns:44px 1fr;gap:18px;
  padding-bottom:30px;
}
.step::before{
  content:"";position:absolute;left:21px;top:46px;bottom:6px;width:1px;background:var(--line);
}
.step:last-child{padding-bottom:0;}
.step:last-child::before{display:none;}
.step-num{
  width:44px;height:44px;border-radius:var(--radius-pill);
  border:1px solid rgba(182,255,60,.35);color:var(--brand);
  display:flex;align-items:center;justify-content:center;
  font-size:14px;font-weight:700;font-variant-numeric:tabular-nums;
  background:var(--bg-2);
}
.step h3{font-size:19px;font-weight:600;line-height:1.4;letter-spacing:-.01em;}
.step p{margin-top:8px;color:var(--text-2);font-size:15px;line-height:1.85;}
.step .hint{
  margin-top:12px;display:inline-block;font-size:13px;color:var(--text-3);
  border-left:2px solid var(--line-strong);padding-left:10px;
}

.side-card{
  background:var(--bg-2);border:1px solid var(--line);border-radius:var(--radius-card);
  padding:24px;box-shadow:var(--shadow-card);
}
@media (min-width:1024px){.side-card{position:sticky;top:92px;}}
.side-card h3{font-size:18px;font-weight:700;letter-spacing:-.01em;}
.side-card .side-desc{margin-top:8px;font-size:13.5px;color:var(--text-3);line-height:1.8;}
.side-list{margin-top:16px;border-top:1px solid var(--line);}
.side-list li{
  display:flex;justify-content:space-between;gap:14px;
  padding:12px 0;border-bottom:1px solid var(--line);font-size:14px;
}
.side-list li span:first-child{color:var(--text-3);white-space:nowrap;}
.side-list li span:last-child{color:var(--text);text-align:right;}
.side-card .btn{margin-top:20px;width:100%;}

/* figure block */
.media-row{display:grid;gap:32px;align-items:center;}
@media (min-width:1024px){.media-row{grid-template-columns:1.05fr 1fr;gap:56px;}}
.media-frame{
  border:1px solid var(--line);border-radius:var(--radius-card);overflow:hidden;
  background:var(--bg-3);box-shadow:var(--shadow-card);
}
.media-frame img{width:100%;aspect-ratio:16/10;object-fit:cover;transition:transform .45s var(--ease);}
.media-frame:hover img{transform:scale(1.03);}
.media-cap{padding:12px 16px;font-size:12.5px;color:var(--text-3);border-top:1px solid var(--line);}
.check-list{border-top:1px solid var(--line);}
.check-list li{
  display:grid;grid-template-columns:24px 1fr;gap:14px;
  padding:16px 0;border-bottom:1px solid var(--line);
}
.check-list .mk{color:var(--brand);font-size:14px;line-height:1.9;}
.check-list strong{display:block;font-size:15.5px;font-weight:600;color:var(--text);}
.check-list span.desc{display:block;margin-top:4px;font-size:14px;color:var(--text-2);line-height:1.8;}

/* notice list */
.notice-list{border-top:1px solid var(--line);}
.notice-list li{
  display:grid;grid-template-columns:30px 1fr;gap:16px;
  padding:18px 0;border-bottom:1px solid var(--line);
  font-size:15px;color:var(--text-2);line-height:1.85;
}
.notice-list .idx{color:var(--text-3);font-size:13px;font-variant-numeric:tabular-nums;padding-top:3px;}
.notice-list strong{color:var(--text);font-weight:600;}

/* faq */
.faq-group{border:1px solid var(--line);border-radius:var(--radius-card);overflow:hidden;background:var(--bg-2);}
.faq-item + .faq-item{border-top:1px solid var(--line);}
.faq-q{
  width:100%;background:transparent;border:0;cursor:pointer;
  display:flex;align-items:center;justify-content:space-between;gap:18px;
  padding:20px 22px;min-height:64px;text-align:left;color:var(--text);
  font-size:16px;font-weight:600;transition:color .2s var(--ease);
}
.faq-q:hover{color:var(--brand);}
.faq-icon{
  position:relative;flex:0 0 18px;width:18px;height:18px;
  transition:transform .2s var(--ease);
}
.faq-icon::before,.faq-icon::after{
  content:"";position:absolute;background:currentColor;border-radius:1px;
}
.faq-icon::before{left:0;top:8px;width:18px;height:1.5px;}
.faq-icon::after{left:8px;top:0;width:1.5px;height:18px;transition:opacity .2s var(--ease);}
.faq-item.is-open .faq-icon{transform:rotate(180deg);}
.faq-item.is-open .faq-icon::after{opacity:0;}
.faq-a{
  max-height:0;opacity:0;overflow:hidden;
  transition:max-height .28s var(--ease),opacity .28s var(--ease);
}
.faq-item.is-open .faq-a{max-height:360px;opacity:1;}
.faq-a-inner{padding:0 22px 22px;color:var(--text-2);font-size:15px;line-height:1.9;}

/* cta band */
.cta-band{
  background:var(--brand);color:var(--brand-ink);
  border-radius:var(--radius-card);
  padding:28px 24px;
  display:flex;flex-direction:column;gap:18px;
  box-shadow:0 24px 60px -32px rgba(182,255,60,.5);
}
@media (min-width:768px){
  .cta-band{flex-direction:row;align-items:center;justify-content:space-between;padding:34px 40px;gap:32px;}
}
.cta-band h2{font-size:24px;font-weight:800;letter-spacing:-.02em;line-height:1.25;}
@media (min-width:768px){.cta-band h2{font-size:30px;}}
.cta-band p{margin-top:8px;font-size:14px;color:rgba(11,13,12,.72);max-width:34em;}
.cta-band .btn-solid-ink{
  background:var(--brand-ink);color:var(--brand);border-color:var(--brand-ink);white-space:nowrap;
}
.cta-band .btn-solid-ink:hover{filter:brightness(1.15);transform:translateY(-1px);}
.cta-band .cta-actions{display:flex;flex-wrap:wrap;gap:10px;}
@media (max-width:520px){.cta-band .cta-actions .btn{width:100%;}}

/* subscribe */
.subscribe-box{
  border:1px solid var(--line);border-radius:var(--radius-card);background:var(--bg-2);
  padding:24px;box-shadow:var(--shadow-card);
}
@media (min-width:768px){.subscribe-box{padding:32px;}}
.sub-form{display:flex;flex-direction:column;gap:12px;margin-top:20px;}
@media (min-width:640px){.sub-form{flex-direction:row;}}
.sub-form input{
  flex:1;height:48px;min-width:0;
  background:var(--bg-3);border:1px solid var(--line-strong);border-radius:var(--radius-btn);
  color:var(--text);padding:0 16px;font-size:15px;
  transition:border-color .2s var(--ease),box-shadow .2s var(--ease);
}
.sub-form input::placeholder{color:var(--text-3);}
.sub-form input:focus{outline:none;border-color:var(--brand);box-shadow:0 0 0 2px rgba(182,255,60,.28);}
.sub-form .btn{height:48px;padding:0 24px;}
.sub-msg{font-size:13px;color:var(--warn);margin-top:10px;display:none;}
.sub-msg.is-show{display:block;}
.sub-privacy{font-size:12px;color:var(--text-3);margin-top:12px;line-height:1.7;}

/* footer */
.site-footer{border-top:1px solid var(--line);background:var(--bg-2);margin-top:0;}
.site-footer .container-x{padding-top:56px;padding-bottom:28px;}
.footer-grid{display:grid;gap:32px;grid-template-columns:1fr;}
@media (min-width:640px){.footer-grid{grid-template-columns:1fr 1fr;}}
@media (min-width:1024px){.footer-grid{grid-template-columns:1.6fr 1fr 1fr 1.3fr;gap:40px;}}
.footer-brand{font-size:18px;font-weight:700;letter-spacing:-.02em;}
.footer-brand span{color:var(--brand);font-size:13px;margin-left:6px;font-weight:600;}
.footer-text{margin-top:14px;font-size:14px;color:var(--text-2);max-width:26em;line-height:1.85;}
.footer-h{font-size:12px;letter-spacing:.18em;color:var(--text-3);margin-bottom:14px;}
.footer-link{display:block;font-size:14.5px;color:var(--text-2);padding:6px 0;transition:color .2s var(--ease);}
.footer-link:hover{color:var(--brand);}
.footer-contact{font-size:14px;color:var(--text-2);line-height:2;}
.footer-bottom{
  margin-top:40px;padding-top:20px;border-top:1px solid var(--line);
  display:flex;flex-direction:column;gap:8px;
  font-size:12px;color:var(--text-3);line-height:1.8;
}
@media (min-width:768px){.footer-bottom{flex-direction:row;justify-content:space-between;align-items:center;}}

/* reveal */
.reveal{opacity:0;transform:translateY(12px);transition:opacity .6s var(--ease),transform .6s var(--ease);}
.reveal.in{opacity:1;transform:none;}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation-duration:.001ms !important;transition-duration:.001ms !important;}
  .reveal{opacity:1;transform:none;}
}

/* roulang page: category2 */
:root{
  --bg:#0B0D0C;
  --bg-2:#121614;
  --bg-3:#1A1F1C;
  --line:rgba(242,239,232,.10);
  --line-strong:rgba(242,239,232,.18);
  --text:#F2EFE8;
  --text-2:#A8B0AA;
  --text-3:#6E7672;
  --brand:#B6FF3C;
  --brand-ink:#0B0D0C;
  --warn:#FF6A3D;
  --r-card:10px;
  --r-btn:6px;
  --r-img:8px;
  --r-pill:999px;
  --shadow-card:0 1px 0 rgba(255,255,255,.04) inset,0 20px 40px -24px rgba(0,0,0,.65);
  --shadow-pop:0 24px 60px -20px rgba(0,0,0,.7);
  --container:1200px;
  --ease:cubic-bezier(.2,.7,.3,1);
}
*{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC","Helvetica Neue",Arial,sans-serif;
  font-size:16px;
  line-height:1.9;
  -webkit-font-smoothing:antialiased;
}
img{display:block;max-width:100%;}
a{color:inherit;text-decoration:none;}
button,input{font:inherit;color:inherit;}
h1,h2,h3,h4,p{margin:0;}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;}

.container-x{width:100%;max-width:var(--container);margin:0 auto;padding:0 32px;}

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(11,13,12,.72);
  border-bottom:1px solid var(--line);
  transition:background .25s var(--ease),border-color .25s var(--ease),backdrop-filter .25s var(--ease);
}
.site-header.is-scrolled{
  background:rgba(11,13,12,.9);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  border-bottom-color:var(--line-strong);
}
.header-inner{height:68px;display:flex;align-items:center;justify-content:space-between;gap:24px;}
.brand{display:flex;align-items:baseline;gap:7px;font-weight:800;letter-spacing:-.02em;white-space:nowrap;}
.brand-main{font-size:19px;}
.brand-sep{color:var(--brand);font-weight:400;}
.brand-sub{font-size:12px;letter-spacing:.14em;color:var(--text-2);}
.nav-desktop{display:flex;align-items:center;gap:2px;padding:5px;border:1px solid var(--line);border-radius:var(--r-pill);background:rgba(255,255,255,.02);}
.nav-link{position:relative;padding:8px 16px;border-radius:var(--r-pill);font-size:14px;color:var(--text-2);transition:color .2s var(--ease),background .2s var(--ease);}
.nav-link:hover{color:var(--text);background:rgba(255,255,255,.05);}
.nav-link.is-active{color:var(--brand);}
.nav-link.is-active::after{content:"";position:absolute;left:50%;transform:translateX(-50%);bottom:1px;width:18px;height:2px;border-radius:2px;background:var(--brand);}
.header-actions{display:flex;align-items:center;gap:16px;}
.header-textlink{font-size:14px;color:var(--text-2);transition:color .2s var(--ease);}
.header-textlink:hover{color:var(--brand);}
.burger{
  display:none;width:44px;height:44px;border:1px solid var(--line);border-radius:var(--r-btn);
  background:transparent;cursor:pointer;align-items:center;justify-content:center;flex-direction:column;gap:6px;
  transition:border-color .2s var(--ease);
}
.burger:hover{border-color:var(--line-strong);}
.burger span{display:block;width:18px;height:1.5px;background:var(--text);}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  border-radius:var(--r-btn);border:1px solid transparent;font-weight:600;cursor:pointer;
  transition:filter .2s var(--ease),transform .2s var(--ease),background .2s var(--ease),border-color .2s var(--ease),color .2s var(--ease);
  white-space:nowrap;
}
.btn .arrow{transition:transform .2s var(--ease);}
.btn:hover .arrow{transform:translateX(4px);}
.btn-primary{background:var(--brand);color:var(--brand-ink);}
.btn-primary:hover{filter:brightness(1.08);}
.btn-primary:active{transform:translateY(1px);}
.btn-ghost{border-color:var(--line-strong);color:var(--text);background:transparent;}
.btn-ghost:hover{border-color:var(--brand);color:var(--brand);}
.btn-dark{background:var(--brand-ink);color:var(--brand);}
.btn-dark:hover{filter:brightness(1.15);}
.btn-sm{padding:9px 16px;font-size:14px;}
.btn-lg{padding:14px 26px;font-size:15px;}
.btn-block{width:100%;}

/* ---------- drawer ---------- */
.drawer-mask{position:fixed;inset:0;background:rgba(0,0,0,.62);opacity:0;pointer-events:none;transition:opacity .28s var(--ease);z-index:70;}
.drawer-mask.is-open{opacity:1;pointer-events:auto;}
.drawer{
  position:fixed;top:0;right:0;height:100%;width:280px;max-width:86vw;z-index:80;
  background:var(--bg-2);border-left:1px solid var(--line);
  transform:translateX(100%);transition:transform .28s var(--ease);
  padding:22px 20px;display:flex;flex-direction:column;gap:18px;overflow-y:auto;
}
.drawer.is-open{transform:translateX(0);}
.drawer-head{display:flex;align-items:center;justify-content:space-between;gap:12px;padding-bottom:14px;border-bottom:1px solid var(--line);}
.drawer-close{width:36px;height:36px;border:1px solid var(--line);border-radius:var(--r-btn);background:transparent;cursor:pointer;font-size:18px;line-height:1;color:var(--text-2);}
.drawer-close:hover{color:var(--brand);border-color:var(--line-strong);}
.drawer-nav{display:flex;flex-direction:column;gap:2px;}
.drawer-nav a{padding:12px 12px;border-radius:var(--r-btn);font-size:15px;color:var(--text-2);transition:background .2s var(--ease),color .2s var(--ease);}
.drawer-nav a:hover{background:rgba(255,255,255,.04);color:var(--text);}
.drawer-nav a.is-active{color:var(--brand);background:rgba(182,255,60,.08);}
.drawer-note{font-size:12px;color:var(--text-3);line-height:1.8;margin-top:auto;}

/* ---------- hero ---------- */
.hero{position:relative;overflow:hidden;border-bottom:1px solid var(--line);}
.hero-bg{
  position:absolute;inset:0;
  background-image:url(/assets/images/backpic/back-2.png);
  background-size:cover;background-position:center;
  opacity:.34;
}
.hero::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(11,13,12,.78),rgba(11,13,12,.94) 62%,var(--bg) 100%);
}
.hero-inner{position:relative;z-index:2;padding:56px 0 64px;}
.crumbs{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--text-3);}
.crumbs a{transition:color .2s var(--ease);}
.crumbs a:hover{color:var(--text-2);text-decoration:underline;text-underline-offset:3px;}
.crumbs .sep{color:var(--text-3);}
.tagline{
  display:inline-flex;align-items:center;gap:9px;margin-top:30px;
  font-size:12px;letter-spacing:.18em;color:var(--brand);
}
.live-dot{width:7px;height:7px;border-radius:50%;background:var(--warn);animation:pulse 1.6s infinite;}
@keyframes pulse{0%,100%{opacity:1;transform:scale(1);}50%{opacity:.32;transform:scale(.78);}}
.hero-title{
  margin-top:16px;
  font-size:clamp(32px,5vw,58px);
  line-height:1.08;font-weight:800;letter-spacing:-.02em;
  max-width:17em;
}
.hero-rule{width:48px;height:2px;background:var(--brand);margin:24px 0 20px;}
.hero-sub{color:var(--text-2);font-size:17px;max-width:44em;}
.hero-cta{display:flex;flex-wrap:wrap;gap:12px;margin-top:30px;}
.hero-tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:26px;}
.chip{
  display:inline-flex;align-items:center;gap:6px;
  font-size:12px;letter-spacing:.06em;color:var(--text-2);
  border:1px solid var(--line);border-radius:var(--r-pill);
  padding:6px 13px;background:rgba(255,255,255,.02);
}

/* ---------- countdown bar ---------- */
.countbar{
  position:sticky;top:68px;z-index:40;
  background:var(--bg-2);border-bottom:1px solid var(--line);
}
.countbar-inner{display:flex;align-items:center;justify-content:space-between;gap:24px;padding:14px 0;flex-wrap:wrap;}
.count-grid{display:flex;align-items:flex-end;}
.count-cell{padding:0 20px;border-left:1px solid var(--line);text-align:center;}
.count-cell:first-child{border-left:0;padding-left:0;}
.count-num{
  display:block;font-size:clamp(28px,4vw,44px);line-height:1;font-weight:800;
  letter-spacing:-.03em;font-variant-numeric:tabular-nums;
}
.count-num.is-tick{animation:tickUp .35s var(--ease);}
@keyframes tickUp{from{opacity:.25;transform:translateY(6px);}to{opacity:1;transform:none;}}
.count-num.is-brand{color:var(--brand);}
.count-label{display:block;margin-top:7px;font-size:11px;letter-spacing:.18em;color:var(--text-3);}
.count-meta{font-size:13px;color:var(--text-2);text-align:right;line-height:1.7;}
.count-meta strong{color:var(--text);font-weight:600;font-variant-numeric:tabular-nums;}

/* ---------- sections ---------- */
.section{padding:88px 0;border-top:1px solid var(--line);}
.section.first{border-top:0;}
.section-head{max-width:60em;}
.sec-num{
  display:block;font-size:12px;letter-spacing:.18em;color:var(--brand);
  font-variant-numeric:tabular-nums;
}
.sec-title{
  margin-top:10px;font-size:clamp(26px,3.4vw,36px);line-height:1.15;font-weight:700;letter-spacing:-.02em;
}
.sec-desc{margin-top:14px;color:var(--text-2);font-size:15px;max-width:54em;}

/* ---------- feature cards ---------- */
.feature-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:24px;margin-top:40px;}
.fcard{
  display:flex;flex-direction:column;overflow:hidden;
  background:var(--bg-3);border:1px solid var(--line);border-radius:var(--r-card);
  box-shadow:var(--shadow-card);
  transition:transform .2s var(--ease),border-color .2s var(--ease);
}
.fcard:hover{transform:translateY(-2px);border-color:var(--line-strong);}
.fcard-media{position:relative;aspect-ratio:16/9;overflow:hidden;background:var(--bg-2);}
.fcard-media img{width:100%;height:100%;object-fit:cover;transition:transform .2s var(--ease);}
.fcard:hover .fcard-media img{transform:scale(1.03);}
.fcard-media::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(11,13,12,0) 42%,rgba(11,13,12,.9) 100%);
}
.badge-live{
  position:absolute;top:12px;left:12px;z-index:3;
  display:inline-flex;align-items:center;gap:6px;
  background:var(--warn);color:var(--brand-ink);
  font-size:11px;font-weight:700;letter-spacing:.12em;
  padding:5px 10px;border-radius:var(--r-pill);
}
.badge-timer{
  position:absolute;top:12px;right:12px;z-index:3;
  background:rgba(11,13,12,.84);border:1px solid var(--line-strong);
  color:var(--text);font-size:12px;padding:5px 11px;border-radius:var(--r-pill);
  font-variant-numeric:tabular-nums;
}
.fcard-body{padding:20px 20px 22px;display:flex;flex-direction:column;gap:12px;flex:1;}
.fcard-title{font-size:20px;line-height:1.35;font-weight:600;letter-spacing:-.01em;}
.fcard-meta{display:flex;flex-wrap:wrap;gap:8px;font-size:13px;color:var(--text-3);}
.fcard-link{
  margin-top:auto;display:inline-flex;align-items:center;gap:6px;
  font-size:14px;font-weight:600;color:var(--brand);
}
.fcard-link .arrow{transition:transform .2s var(--ease);}
.fcard:hover .fcard-link .arrow{transform:translateX(4px);}

/* ---------- rows ---------- */
.list-rows{margin-top:36px;border-top:1px solid var(--line);}
.row-item{
  display:grid;grid-template-columns:112px 1fr 128px 24px;gap:20px;align-items:center;
  padding:20px 0;border-bottom:1px solid var(--line);
  transition:padding-left .2s var(--ease),background .2s var(--ease);
}
.row-item:hover{padding-left:10px;background:rgba(255,255,255,.015);}
.row-time{
  font-size:14px;font-weight:600;color:var(--brand);font-variant-numeric:tabular-nums;letter-spacing:-.01em;
}
.row-title{font-size:16px;font-weight:600;line-height:1.5;transition:color .2s var(--ease);}
.row-item:hover .row-title{color:var(--brand);}
.row-sub{margin-top:4px;font-size:13px;color:var(--text-3);}
.row-tag{font-size:12px;letter-spacing:.1em;color:var(--text-3);}
.row-arrow{color:var(--text-3);font-size:16px;transition:transform .2s var(--ease),color .2s var(--ease);}
.row-item:hover .row-arrow{transform:translateX(4px);color:var(--brand);}

/* ---------- stats ---------- */
.stats{
  display:grid;grid-template-columns:repeat(4,1fr);gap:24px;
  margin-top:44px;padding:32px 0;border-top:1px solid var(--line);border-bottom:1px solid var(--line);
}
.stat-num{
  display:block;font-size:clamp(28px,3.2vw,36px);font-weight:800;line-height:1.1;
  letter-spacing:-.03em;font-variant-numeric:tabular-nums;
}
.stat-label{margin-top:8px;display:block;font-size:13px;color:var(--text-3);}

/* ---------- subscribe ---------- */
.subscribe-box{
  display:grid;grid-template-columns:1fr 1fr;gap:36px;align-items:center;
  margin-top:36px;padding:34px;
  background:var(--bg-2);border:1px solid var(--line);border-radius:var(--r-card);
}
.sub-title{font-size:20px;font-weight:600;letter-spacing:-.01em;}
.sub-text{margin-top:10px;font-size:14px;color:var(--text-2);}
.sub-form{display:flex;gap:12px;}
.sub-input{
  flex:1;height:48px;padding:0 15px;color:var(--text);
  background:var(--bg);border:1px solid var(--line-strong);border-radius:var(--r-btn);
  transition:border-color .2s var(--ease),box-shadow .2s var(--ease);
}
.sub-input::placeholder{color:var(--text-3);}
.sub-input:focus{outline:none;border-color:var(--brand);box-shadow:0 0 0 2px rgba(182,255,60,.22);}
.btn-submit{height:48px;padding:0 24px;}
.sub-msg{margin-top:10px;font-size:13px;color:var(--text-2);}
.sub-msg.is-error{color:var(--warn);}
.sub-msg.is-ok{color:var(--brand);}
.sub-privacy{margin-top:10px;font-size:12px;color:var(--text-3);}

/* ---------- faq ---------- */
.faq{margin-top:36px;border:1px solid var(--line);border-radius:var(--r-card);overflow:hidden;background:var(--bg-2);}
.faq-item + .faq-item{border-top:1px solid var(--line);}
.faq-q{
  width:100%;min-height:64px;padding:0 22px;display:flex;align-items:center;justify-content:space-between;gap:16px;
  background:transparent;border:0;cursor:pointer;text-align:left;
  font-size:16px;font-weight:600;color:var(--text);
  transition:color .2s var(--ease);
}
.faq-q:hover{color:var(--brand);}
.faq-icon{position:relative;flex:0 0 14px;width:14px;height:14px;color:var(--brand);}
.faq-icon::before,.faq-icon::after{
  content:"";position:absolute;left:0;top:50%;width:14px;height:1.5px;background:currentColor;border-radius:2px;
  transition:transform .2s var(--ease);
}
.faq-icon::after{transform:rotate(90deg);}
.faq-item.is-open .faq-icon::after{transform:rotate(0deg);}
.faq-a{max-height:0;opacity:0;overflow:hidden;transition:max-height .28s var(--ease),opacity .28s var(--ease);}
.faq-item.is-open .faq-a{opacity:1;}
.faq-a-inner{padding:0 22px 22px;font-size:15px;color:var(--text-2);}

/* ---------- cta band ---------- */
.cta-wrap{padding:0 0 88px;}
.cta-band{
  display:flex;align-items:center;justify-content:space-between;gap:28px;
  background:var(--brand);color:var(--brand-ink);
  border-radius:var(--r-card);padding:36px 40px;
}
.cta-band h2{font-size:clamp(22px,3vw,30px);font-weight:700;line-height:1.25;letter-spacing:-.02em;}
.cta-band p{margin-top:8px;font-size:14px;color:rgba(11,13,12,.78);}

/* ---------- footer ---------- */
.site-footer{border-top:1px solid var(--line);background:var(--bg-2);padding:64px 0 28px;}
.footer-grid{display:grid;grid-template-columns:1.7fr 1fr 1fr 1.2fr;gap:32px;}
.footer-brand{font-size:18px;font-weight:800;letter-spacing:-.02em;}
.footer-brand span{display:inline-block;margin-left:6px;font-size:12px;font-weight:400;letter-spacing:.14em;color:var(--text-2);}
.footer-text{margin-top:14px;font-size:14px;color:var(--text-2);max-width:30em;}
.footer-h{margin-bottom:14px;font-size:12px;letter-spacing:.18em;color:var(--text-3);}
.footer-link{display:block;padding:6px 0;font-size:14px;color:var(--text-2);transition:color .2s var(--ease);}
.footer-link:hover{color:var(--brand);}
.footer-contact{font-size:14px;color:var(--text-2);line-height:1.95;}
.footer-bottom{
  display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
  margin-top:44px;padding-top:20px;border-top:1px solid var(--line);
  font-size:12px;color:var(--text-3);
}

/* ---------- reveal ---------- */
.reveal{opacity:0;transform:translateY(12px);transition:opacity .5s var(--ease),transform .5s var(--ease);}
.reveal.in{opacity:1;transform:none;}
.reveal.d1{transition-delay:.06s;}
.reveal.d2{transition-delay:.12s;}
.reveal.d3{transition-delay:.18s;}

/* ---------- responsive ---------- */
@media (max-width:1279px){
  .feature-grid{gap:20px;}
}
@media (max-width:1023px){
  .nav-desktop,.header-textlink{display:none;}
  .burger{display:inline-flex;}
}
@media (max-width:767px){
  .container-x{padding:0 20px;}
  .section{padding:56px 0;}
  .hero-inner{padding:36px 0 48px;}
  .hero-sub{font-size:16px;}
  .countbar{top:60px;}
  .count-cell{padding:0 14px;}
  .count-meta{text-align:left;width:100%;}
  .feature-grid{grid-template-columns:1fr;}
  .row-item{grid-template-columns:1fr 24px;gap:8px 12px;padding:18px 0;}
  .row-time{grid-column:1;font-size:13px;}
  .row-tag{grid-column:1;font-size:12px;}
  .row-arrow{grid-column:2;grid-row:1 / span 3;align-self:center;}
  .stats{grid-template-columns:1fr 1fr;gap:22px;padding:26px 0;}
  .subscribe-box{grid-template-columns:1fr;padding:24px;gap:24px;}
  .sub-form{flex-direction:column;}
  .cta-band{flex-direction:column;align-items:flex-start;padding:28px 24px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:26px;}
  .footer-bottom{flex-direction:column;gap:8px;}
}
@media (max-width:639px){
  .header-inner{height:60px;}
  .header-cta{display:none;}
  .brand-main{font-size:17px;}
  .brand-sub{font-size:11px;}
  .footer-grid{grid-template-columns:1fr;}
  .hero-cta .btn{width:100%;}
}
@media (prefers-reduced-motion: reduce){
  *{animation:none !important;transition:none !important;}
  .reveal{opacity:1;transform:none;}
  html{scroll-behavior:auto;}
}

/* roulang page: category3 */
:root{
  --bg:#0B0D0C;
  --bg-2:#121614;
  --bg-3:#1A1F1C;
  --line:rgba(242,239,232,.10);
  --line-strong:rgba(242,239,232,.18);
  --text:#F2EFE8;
  --text-2:#A8B0AA;
  --text-3:#6E7672;
  --brand:#B6FF3C;
  --brand-ink:#0B0D0C;
  --warn:#FF6A3D;
  --r-card:10px;
  --r-btn:6px;
  --r-img:8px;
  --sh-card:0 1px 0 rgba(255,255,255,.04) inset, 0 20px 40px -24px rgba(0,0,0,.65);
  --sh-float:0 24px 60px -20px rgba(0,0,0,.7);
  --ease:cubic-bezier(.2,.7,.3,1);
}

*,*::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:"PingFang SC","Microsoft YaHei","Noto Sans SC",-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,sans-serif;
  font-size:16px;
  line-height:1.9;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{display:block;max-width:100%}
a{color:inherit;text-decoration:none}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer}
h1,h2,h3,h4,p,ul,ol,figure{margin:0}
ul,ol{padding:0;list-style:none}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;border-radius:4px}
::selection{background:rgba(182,255,60,.28);color:var(--text)}

.container-x{max-width:1200px;margin:0 auto;padding:0 32px;width:100%}
.num{font-variant-numeric:tabular-nums;font-feature-settings:"tnum" 1}

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(11,13,12,.62);
  border-bottom:1px solid transparent;
  transition:background .25s var(--ease),border-color .25s var(--ease),backdrop-filter .25s var(--ease);
}
.site-header.is-scrolled{
  background:rgba(11,13,12,.88);
  backdrop-filter:blur(12px);
  -webkit-backdrop-filter:blur(12px);
  border-bottom-color:var(--line);
}
.header-inner{display:flex;align-items:center;justify-content:space-between;gap:24px;height:68px}
.brand{display:flex;align-items:baseline;gap:6px;font-weight:800;letter-spacing:-.02em;white-space:nowrap}
.brand-main{font-size:19px;color:var(--text);transition:color .2s var(--ease)}
.brand-sep{color:var(--brand);opacity:.7;font-size:14px}
.brand-sub{font-size:12px;letter-spacing:.18em;color:var(--text-2);transition:color .2s var(--ease)}
.brand:hover .brand-sub{color:var(--brand)}

.nav-desktop{display:flex;align-items:center;gap:28px}
.nav-link{
  position:relative;font-size:15px;color:var(--text-2);padding:6px 2px;
  transition:color .2s var(--ease);
}
.nav-link::after{
  content:"";position:absolute;left:0;right:0;bottom:-2px;height:2px;
  background:var(--brand);transform:scaleX(0);transform-origin:left;
  transition:transform .26s var(--ease);
}
.nav-link:hover{color:var(--text)}
.nav-link:hover::after{transform:scaleX(1)}
.nav-link.is-active{color:var(--brand)}
.nav-link.is-active::after{transform:scaleX(1)}

.header-actions{display:flex;align-items:center;gap:16px}
.header-textlink{
  font-size:14px;color:var(--text-2);background-image:linear-gradient(var(--brand),var(--brand));
  background-repeat:no-repeat;background-size:0% 1px;background-position:0 100%;
  padding-bottom:3px;transition:color .2s var(--ease),background-size .25s var(--ease);
}
.header-textlink:hover{color:var(--brand);background-size:100% 1px}

.btn{
  display:inline-flex;align-items:center;gap:8px;
  height:44px;padding:0 20px;border-radius:var(--r-btn);
  font-size:15px;font-weight:600;white-space:nowrap;letter-spacing:0;
  transition:background .2s var(--ease),color .2s var(--ease),border-color .2s var(--ease),transform .2s var(--ease),filter .2s var(--ease);
}
.btn-primary{background:var(--brand);color:var(--brand-ink)}
.btn-primary:hover{filter:brightness(1.08)}
.btn-primary:hover .btn-arrow{transform:translateX(4px)}
.btn-ghost{border:1px solid var(--line-strong);color:var(--text)}
.btn-ghost:hover{border-color:var(--brand);color:var(--brand)}
.btn-sm{height:38px;padding:0 16px;font-size:14px}
.btn-lg{height:50px;padding:0 26px;font-size:16px}
.btn-arrow{display:inline-block;transition:transform .2s var(--ease)}
.btn-dark{background:var(--brand-ink);color:var(--brand)}
.btn-dark:hover{filter:brightness(1.12)}

.burger{display:none;width:44px;height:44px;align-items:center;justify-content:center;flex-direction:column;gap:6px;border-radius:var(--r-btn);border:1px solid var(--line)}
.burger span{display:block;width:20px;height:2px;background:var(--text);transition:transform .24s var(--ease),opacity .24s var(--ease)}
.burger[aria-expanded="true"] span:first-child{transform:translateY(4px) rotate(45deg)}
.burger[aria-expanded="true"] span:last-child{transform:translateY(-4px) rotate(-45deg)}

.drawer-mask{
  position:fixed;inset:0;background:rgba(0,0,0,.62);z-index:70;
  opacity:0;pointer-events:none;transition:opacity .28s var(--ease);
}
.drawer-mask.is-open{opacity:1;pointer-events:auto}
.drawer{
  position:fixed;top:0;right:0;bottom:0;width:280px;z-index:80;
  background:var(--bg-2);border-left:1px solid var(--line);
  padding:24px 22px 32px;display:flex;flex-direction:column;gap:6px;
  transform:translateX(100%);transition:transform .28s var(--ease);
  box-shadow:var(--sh-float);overflow-y:auto;
}
.drawer.is-open{transform:translateX(0)}
.drawer-close{align-self:flex-end;width:40px;height:40px;border:1px solid var(--line);border-radius:var(--r-btn);display:grid;place-items:center;color:var(--text-2);margin-bottom:12px}
.drawer .nav-link{font-size:16px;padding:13px 2px;border-bottom:1px solid var(--line)}
.drawer .nav-link::after{display:none}
.drawer-cta{margin-top:22px}
.drawer-note{font-size:12px;color:var(--text-3);line-height:1.8;margin-top:18px}

/* ---------- hero ---------- */
.page-hero{padding:56px 0 52px;border-bottom:1px solid var(--line);position:relative;overflow:hidden}
.page-hero::before{
  content:"";position:absolute;inset:0;
  background:
    radial-gradient(680px 320px at 88% 6%, rgba(182,255,60,.09), transparent 62%),
    linear-gradient(180deg, rgba(18,22,20,.7), rgba(11,13,12,0));
  pointer-events:none;
}
.hero-grid{position:relative;display:grid;grid-template-columns:1.05fr .95fr;gap:48px;align-items:center}
.breadcrumb{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--text-3);margin-bottom:20px}
.breadcrumb a{transition:color .2s var(--ease)}
.breadcrumb a:hover{color:var(--brand)}
.breadcrumb .sep{color:var(--text-3);opacity:.6}
.chip{
  display:inline-flex;align-items:center;gap:8px;
  padding:5px 13px;border-radius:999px;border:1px solid var(--line-strong);
  font-size:12px;letter-spacing:.18em;color:var(--text-2);text-transform:uppercase;
}
.chip .dot{width:6px;height:6px;border-radius:50%;background:var(--brand)}
h1{
  font-size:clamp(30px,4.1vw,46px);line-height:1.16;font-weight:800;
  letter-spacing:-.02em;margin-top:18px;
}
.hero-rule{width:48px;height:3px;background:var(--brand);border-radius:2px;margin:22px 0}
.hero-lead{color:var(--text-2);font-size:16.5px;line-height:1.9;max-width:46ch}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:28px}
.hero-media{
  position:relative;border-radius:10px;overflow:hidden;border:1px solid var(--line);
  aspect-ratio:16/11;box-shadow:var(--sh-card);background:var(--bg-3);
}
.hero-media img{width:100%;height:100%;object-fit:cover;transition:transform .5s var(--ease)}
.hero-media:hover img{transform:scale(1.03)}
.hero-media::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(11,13,12,.15) 0%,rgba(11,13,12,0) 42%,rgba(11,13,12,.86) 100%);
}
.hero-media figcaption{
  position:absolute;left:20px;right:20px;bottom:18px;z-index:2;
  font-size:14px;color:var(--text);display:flex;align-items:center;gap:10px;
}
.hero-media .tag{
  padding:3px 10px;border-radius:999px;background:var(--brand);color:var(--brand-ink);
  font-size:11px;font-weight:700;letter-spacing:.08em;
}

/* ---------- stat row ---------- */
.stat-row{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));border-bottom:1px solid var(--line)}
.stat-item{padding:30px 26px;border-right:1px solid var(--line)}
.stat-item:last-child{border-right:0}
.stat-value{font-size:34px;font-weight:800;letter-spacing:-.03em;color:var(--brand);line-height:1.2}
.stat-label{font-size:12px;letter-spacing:.16em;color:var(--text-3);margin-top:6px}

/* ---------- sections ---------- */
.section{padding:76px 0;border-bottom:1px solid var(--line)}
.section:last-of-type{border-bottom:0}
.sec-head{display:flex;align-items:baseline;gap:14px;margin-bottom:14px}
.sec-num{font-size:12px;letter-spacing:.18em;color:var(--brand);font-weight:700}
h2{font-size:clamp(23px,2.6vw,31px);line-height:1.2;font-weight:700;letter-spacing:-.02em}
.sec-desc{color:var(--text-2);font-size:15.5px;max-width:68ch;margin-bottom:34px}

/* ---------- steps ---------- */
.steps{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:32px;position:relative}
.steps::before{content:"";position:absolute;top:19px;left:6%;right:6%;height:1px;background:var(--line)}
.step{position:relative}
.step-dot{
  position:relative;z-index:1;width:40px;height:40px;border-radius:50%;
  border:1px solid var(--line-strong);background:var(--bg);
  display:grid;place-items:center;font-size:13px;font-weight:700;color:var(--brand);
}
.step h3{font-size:18px;font-weight:600;margin:18px 0 8px}
.step p{font-size:15px;color:var(--text-2);line-height:1.85}

/* ---------- faq layout ---------- */
.faq-layout{display:grid;grid-template-columns:250px minmax(0,1fr);gap:52px;align-items:start}
.toc{position:sticky;top:96px}
.toc-title{font-size:12px;letter-spacing:.18em;color:var(--text-3);margin-bottom:14px}
.toc a{
  display:block;padding:11px 0 11px 14px;border-left:2px solid var(--line);
  font-size:14.5px;color:var(--text-2);transition:color .2s var(--ease),border-color .2s var(--ease);
}
.toc a:hover,.toc a.is-active{color:var(--brand);border-left-color:var(--brand)}
.toc-note{margin-top:28px;padding:18px;border:1px solid var(--line);border-radius:var(--r-card);background:var(--bg-2)}
.toc-note p{font-size:13.5px;color:var(--text-2);line-height:1.85}
.toc-note a{display:inline-block;margin-top:10px;font-size:13.5px;color:var(--brand);border-bottom:1px solid rgba(182,255,60,.4)}

.faq-group{margin-bottom:60px;scroll-margin-top:100px}
.faq-group:last-child{margin-bottom:0}
.faq-shell{border:1px solid var(--line);border-radius:var(--r-card);overflow:hidden;background:var(--bg-2);box-shadow:var(--sh-card)}
.faq-item+.faq-item{border-top:1px solid var(--line)}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:20px;
  min-height:64px;padding:16px 22px;text-align:left;
  font-size:16px;font-weight:600;color:var(--text);line-height:1.6;
  transition:background .2s var(--ease),color .2s var(--ease);
}
.faq-q:hover{background:var(--bg-3);color:var(--brand)}
.faq-item.is-open .faq-q{color:var(--brand)}
.faq-icon{position:relative;width:14px;height:14px;flex:0 0 14px}
.faq-icon::before,.faq-icon::after{
  content:"";position:absolute;background:var(--brand);border-radius:2px;
  transition:transform .22s var(--ease),opacity .22s var(--ease);
}
.faq-icon::before{left:0;top:6px;width:14px;height:2px}
.faq-icon::after{left:6px;top:0;width:2px;height:14px}
.faq-item.is-open .faq-icon::after{transform:rotate(90deg);opacity:0}
.faq-a{max-height:0;overflow:hidden;opacity:0;transition:max-height .3s var(--ease),opacity .3s var(--ease)}
.faq-item.is-open .faq-a{opacity:1}
.faq-a-inner{
  margin:0 22px 22px 22px;padding-left:16px;border-left:2px solid rgba(182,255,60,.35);
  color:var(--text-2);font-size:15.5px;line-height:1.9;
}
.faq-a-inner p+p{margin-top:10px}

/* ---------- entry cards ---------- */
.entry-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px}
.entry-card{
  display:block;background:var(--bg-2);border:1px solid var(--line);border-radius:var(--r-card);
  overflow:hidden;transition:border-color .2s var(--ease),transform .2s var(--ease),box-shadow .2s var(--ease);
}
.entry-card:hover{border-color:var(--line-strong);transform:translateY(-2px);box-shadow:var(--sh-card)}
.entry-thumb{position:relative;aspect-ratio:16/9;overflow:hidden;background:var(--bg-3)}
.entry-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .4s var(--ease)}
.entry-card:hover .entry-thumb img{transform:scale(1.03)}
.entry-body{padding:20px 22px 22px}
.entry-tag{font-size:12px;letter-spacing:.16em;color:var(--brand)}
.entry-body h3{font-size:19px;font-weight:600;margin:10px 0 8px;letter-spacing:-.01em}
.entry-body p{font-size:14.5px;color:var(--text-2);line-height:1.8}
.entry-more{display:inline-flex;align-items:center;gap:6px;margin-top:14px;font-size:14px;color:var(--text)}
.entry-card:hover .entry-more{color:var(--brand)}
.entry-card:hover .entry-more .btn-arrow{transform:translateX(4px)}

/* ---------- cta ---------- */
.cta-band{
  background:var(--brand);color:var(--brand-ink);border-radius:var(--r-card);
  padding:36px 40px;display:flex;align-items:center;justify-content:space-between;gap:28px;flex-wrap:wrap;
}
.cta-band h2{color:var(--brand-ink);font-size:clamp(21px,2.4vw,28px)}
.cta-band p{font-size:14.5px;color:rgba(11,13,12,.78);margin-top:8px;max-width:52ch;line-height:1.8}

/* ---------- feedback ---------- */
.feedback-wrap{margin-top:40px;display:grid;grid-template-columns:1fr 1fr;gap:40px;align-items:start}
.feedback-list li{display:flex;gap:12px;padding:14px 0;border-bottom:1px solid var(--line);font-size:15px;color:var(--text-2)}
.feedback-list li::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--brand);flex:0 0 6px;margin-top:11px}
.field{display:flex;flex-direction:column;gap:8px;margin-bottom:16px}
.field label{font-size:13.5px;color:var(--text-2)}
.field input,.field textarea{
  width:100%;background:var(--bg-2);border:1px solid var(--line);border-radius:var(--r-btn);
  padding:13px 14px;color:var(--text);font-size:15px;font-family:inherit;line-height:1.7;
  transition:border-color .2s var(--ease),box-shadow .2s var(--ease),background .2s var(--ease);
}
.field textarea{min-height:112px;resize:vertical}
.field input::placeholder,.field textarea::placeholder{color:var(--text-3)}
.field input:focus,.field textarea:focus{
  outline:none;border-color:var(--brand);box-shadow:0 0 0 2px rgba(182,255,60,.22);background:var(--bg-3);
}
.form-note{font-size:12px;color:var(--text-3);margin-top:12px}
.form-msg{font-size:13.5px;color:var(--brand);margin-top:12px;min-height:20px}

/* ---------- footer ---------- */
.site-footer{border-top:1px solid var(--line);background:var(--bg-2);padding:64px 0 28px;margin-top:0}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:40px}
.footer-brand{font-size:18px;font-weight:800;letter-spacing:-.02em;margin-bottom:14px}
.footer-brand span{color:var(--brand);font-size:12px;letter-spacing:.18em;margin-left:6px}
.footer-text{font-size:14px;color:var(--text-2);line-height:1.9;max-width:34ch}
.footer-h{font-size:12px;letter-spacing:.18em;color:var(--text-3);margin-bottom:16px}
.footer-link{display:block;font-size:14.5px;color:var(--text-2);padding:6px 0;transition:color .2s var(--ease),transform .2s var(--ease)}
.footer-link:hover{color:var(--brand);transform:translateX(2px)}
.footer-contact{font-size:14px;color:var(--text-2);line-height:2}
.footer-bottom{
  display:flex;justify-content:space-between;align-items:center;gap:16px;flex-wrap:wrap;
  border-top:1px solid var(--line);margin-top:48px;padding-top:20px;
  font-size:12px;color:var(--text-3);line-height:1.9;
}

/* ---------- reveal ---------- */
.reveal{opacity:0;transform:translateY(12px);transition:opacity .6s var(--ease),transform .6s var(--ease)}
.reveal.in{opacity:1;transform:none}

/* ---------- responsive ---------- */
@media (max-width:1024px){
  .hero-grid{grid-template-columns:1fr;gap:36px}
  .hero-media{max-width:620px}
  .faq-layout{grid-template-columns:1fr;gap:34px}
  .toc{position:static}
  .toc a{display:inline-block;border-left:0;border-bottom:2px solid var(--line);padding:8px 14px 8px 0;margin-right:22px}
  .toc a:hover,.toc a.is-active{border-left-color:transparent;border-bottom-color:var(--brand)}
  .footer-grid{grid-template-columns:1fr 1fr;gap:36px}
  .entry-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .steps{grid-template-columns:1fr;gap:26px}
  .steps::before{display:none}
}
@media (max-width:960px){
  .nav-desktop{display:none}
  .header-textlink{display:none}
  .burger{display:flex}
}
@media (max-width:768px){
  .container-x{padding:0 20px}
  .page-hero{padding:36px 0 40px}
  .section{padding:56px 0}
  .stat-row{grid-template-columns:1fr}
  .stat-item{border-right:0;border-bottom:1px solid var(--line);padding:22px 2px}
  .stat-item:last-child{border-bottom:0}
  .feedback-wrap{grid-template-columns:1fr;gap:28px}
  .cta-band{padding:28px 24px;flex-direction:column;align-items:flex-start}
  .footer-bottom{flex-direction:column;align-items:flex-start}
}
@media (max-width:640px){
  .entry-grid{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr}
  .hero-actions .btn{width:100%;justify-content:center}
  h1{font-size:clamp(27px,7.4vw,34px)}
  .faq-q{font-size:15.5px;padding:15px 16px;min-height:58px}
  .faq-a-inner{margin:0 16px 20px 16px;font-size:15px}
  .stat-value{font-size:28px}
}
@media (prefers-reduced-motion:reduce){
  *{animation:none!important;transition:none!important}
  .reveal{opacity:1;transform:none}
  html{scroll-behavior:auto}
}

.faq-a{max-height:none!important;opacity:1!important}.reveal{opacity:1;transform:none}

/* roulang page: category4 */
:root{
  --bg:#0B0D0C;
  --bg-2:#121614;
  --bg-3:#1A1F1C;
  --line:rgba(242,239,232,.10);
  --line-strong:rgba(242,239,232,.18);
  --text:#F2EFE8;
  --text-2:#A8B0AA;
  --text-3:#6E7672;
  --brand:#B6FF3C;
  --brand-ink:#0B0D0C;
  --warn:#FF6A3D;
  --radius-card:10px;
  --radius-btn:6px;
  --radius-img:8px;
  --shadow-card:0 1px 0 rgba(255,255,255,.04) inset, 0 20px 40px -24px rgba(0,0,0,.65);
  --shadow-pop:0 24px 60px -20px rgba(0,0,0,.7);
  --ease:cubic-bezier(.2,.7,.3,1);
  --container:1200px;
}

*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC","Hiragino Sans GB",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:16px;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;height:auto}
a{color:inherit;text-decoration:none}
button{font-family:inherit}
h1,h2,h3,h4{margin:0;letter-spacing:-.02em;line-height:1.2}
p{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
.num{font-variant-numeric:tabular-nums;font-feature-settings:"tnum"}

.container-x{width:100%;max-width:var(--container);margin:0 auto;padding:0 20px}
@media (min-width:768px){.container-x{padding:0 32px}}

.skip-link{position:absolute;left:-9999px;top:0;background:var(--brand);color:var(--brand-ink);padding:10px 16px;border-radius:0 0 6px 0;z-index:200}
.skip-link:focus{left:0}

:focus-visible{outline:2px solid var(--brand);outline-offset:2px;border-radius:4px}

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(11,13,12,.86);
  border-bottom:1px solid var(--line);
  backdrop-filter:blur(12px);
  -webkit-backdrop-filter:blur(12px);
  transition:background .25s var(--ease),box-shadow .25s var(--ease);
}
.site-header.is-scrolled{background:rgba(11,13,12,.95);box-shadow:0 12px 30px -22px rgba(0,0,0,.9)}
.header-inner{display:flex;align-items:center;justify-content:space-between;gap:18px;height:60px}
@media (min-width:1024px){.header-inner{height:68px}}

.brand{display:flex;align-items:baseline;gap:6px;font-weight:800;letter-spacing:-.02em;min-width:0}
.brand-main{font-size:17px;color:var(--text)}
.brand-sep{color:var(--text-3);font-weight:400}
.brand-sub{font-size:12.5px;color:var(--brand);letter-spacing:.02em}
@media (min-width:1024px){.brand-main{font-size:19px}.brand-sub{font-size:13px}}

.nav-desktop{display:none}
@media (min-width:1024px){
  .nav-desktop{display:flex;align-items:center;gap:2px;flex:1;justify-content:center}
  .nav-link{
    position:relative;padding:9px 14px;border-radius:999px;font-size:14px;color:var(--text-2);
    transition:color .2s var(--ease),background .2s var(--ease);
  }
  .nav-link:hover{color:var(--text);background:rgba(242,239,232,.06)}
  .nav-link.is-active{color:var(--brand)}
  .nav-link.is-active::after{
    content:"";position:absolute;left:14px;right:14px;bottom:2px;height:2px;border-radius:2px;background:var(--brand);
  }
}

.header-actions{display:flex;align-items:center;gap:12px}
.header-textlink{
  display:none;font-size:13px;color:var(--text-2);
  background-image:linear-gradient(var(--brand),var(--brand));
  background-repeat:no-repeat;background-size:0% 1px;background-position:0 100%;
  transition:background-size .25s var(--ease),color .2s var(--ease);
  padding-bottom:2px;
}
.header-textlink:hover{color:var(--text);background-size:100% 1px}
@media (min-width:768px){.header-textlink{display:inline-block}}

.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:44px;padding:0 20px;border-radius:var(--radius-btn);
  font-size:14.5px;font-weight:600;letter-spacing:0;border:1px solid transparent;
  transition:transform .2s var(--ease),filter .2s var(--ease),border-color .2s var(--ease),background .2s var(--ease),color .2s var(--ease);
  cursor:pointer;white-space:nowrap;
}
.btn svg{transition:transform .2s var(--ease)}
.btn:hover svg{transform:translateX(4px)}
.btn-primary{background:var(--brand);color:var(--brand-ink)}
.btn-primary:hover{filter:brightness(1.08);transform:translateY(-1px)}
.btn-primary:active{transform:translateY(0)}
.btn-ghost{border-color:var(--line-strong);color:var(--text);background:transparent}
.btn-ghost:hover{border-color:var(--brand);color:var(--brand)}
.btn-sm{height:38px;padding:0 16px;font-size:13.5px}
.btn-lg{height:50px;padding:0 26px;font-size:15.5px}
.btn-block{width:100%}

.burger{
  display:inline-flex;flex-direction:column;justify-content:center;gap:6px;
  width:44px;height:44px;padding:0 11px;background:transparent;border:1px solid var(--line-strong);
  border-radius:var(--radius-btn);cursor:pointer;
}
.burger span{display:block;height:2px;width:100%;background:var(--text);border-radius:2px;transition:transform .28s var(--ease),opacity .2s var(--ease)}
.burger[aria-expanded="true"] span:first-child{transform:translateY(4px) rotate(45deg)}
.burger[aria-expanded="true"] span:last-child{transform:translateY(-4px) rotate(-45deg)}
@media (min-width:1024px){.burger{display:none}}

/* drawer */
.drawer-mask{
  position:fixed;inset:0;background:rgba(0,0,0,.6);opacity:0;pointer-events:none;
  transition:opacity .28s var(--ease);z-index:70;
}
.drawer-mask.is-open{opacity:1;pointer-events:auto}
.drawer{
  position:fixed;top:0;right:0;height:100%;width:288px;max-width:86vw;
  background:var(--bg-2);border-left:1px solid var(--line);
  transform:translateX(100%);transition:transform .28s var(--ease);
  z-index:80;display:flex;flex-direction:column;padding:20px;gap:18px;overflow-y:auto;
}
.drawer.is-open{transform:translateX(0)}
.drawer-head{display:flex;align-items:center;justify-content:space-between;padding-bottom:14px;border-bottom:1px solid var(--line)}
.drawer-title{font-size:15px;font-weight:700}
.drawer-close{background:transparent;border:1px solid var(--line-strong);color:var(--text-2);width:36px;height:36px;border-radius:var(--radius-btn);cursor:pointer;font-size:16px;line-height:1}
.drawer-close:hover{color:var(--text);border-color:var(--brand)}
.drawer-nav{display:flex;flex-direction:column}
.drawer-nav a{padding:13px 4px;font-size:15px;color:var(--text-2);border-bottom:1px solid var(--line)}
.drawer-nav a:hover{color:var(--text)}
.drawer-nav a.is-active{color:var(--brand)}
.drawer-note{font-size:12px;color:var(--text-3);line-height:1.7;margin-top:auto}

/* ---------- hero ---------- */
.page-hero{position:relative;overflow:hidden;border-bottom:1px solid var(--line)}
.page-hero-bg{
  position:absolute;inset:0;
  background-image:linear-gradient(180deg,rgba(11,13,12,.72) 0%,rgba(11,13,12,.9) 60%,var(--bg) 100%),url("/assets/images/backpic/back-2.png");
  background-size:cover;background-position:center;
  opacity:.55;
}
.page-hero-inner{position:relative;padding:40px 0 44px}
@media (min-width:1024px){.page-hero-inner{padding:56px 0 60px}}
.hero-grid{display:grid;grid-template-columns:1fr;gap:28px;align-items:center}
@media (min-width:1024px){.hero-grid{grid-template-columns:7fr 5fr;gap:40px}}

.breadcrumb{font-size:13px;color:var(--text-3);display:flex;flex-wrap:wrap;gap:6px;align-items:center;margin-bottom:18px}
.breadcrumb a:hover{color:var(--brand)}
.breadcrumb span.sep{color:var(--text-3);opacity:.6}

.hero-tag{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12px;letter-spacing:.18em;color:var(--brand);
  border:1px solid var(--line-strong);border-radius:999px;padding:5px 12px;margin-bottom:16px;
  background:rgba(182,255,60,.06);
}
.page-title{font-size:32px;font-weight:800;line-height:1.16;letter-spacing:-.02em}
@media (min-width:768px){.page-title{font-size:40px}}
@media (min-width:1024px){.page-title{font-size:46px}}
.page-title .hl{color:var(--brand)}
.title-rule{width:48px;height:3px;background:var(--brand);border-radius:2px;margin:20px 0}
.page-sub{font-size:16px;color:var(--text-2);max-width:600px;line-height:1.85}
.hero-meta{display:flex;flex-wrap:wrap;gap:8px 18px;margin-top:22px;font-size:13px;color:var(--text-3)}
.hero-meta b{color:var(--text-2);font-weight:600}
.hero-cta{display:flex;flex-wrap:wrap;gap:12px;margin-top:26px}
@media (max-width:520px){.hero-cta .btn{width:100%}}

.hero-visual{position:relative;border:1px solid var(--line);border-radius:var(--radius-card);overflow:hidden;background:var(--bg-3);box-shadow:var(--shadow-card)}
.hero-visual img{aspect-ratio:16/10;object-fit:cover;width:100%}
.hero-visual::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(11,13,12,0) 40%,rgba(11,13,12,.85) 100%);
}
.hero-visual-caption{
  position:absolute;left:16px;right:16px;bottom:14px;z-index:2;
}
.hero-visual-caption strong{display:block;font-size:14.5px;font-weight:600}
.hero-visual-caption span{font-size:12px;color:var(--text-3)}

/* ---------- sections ---------- */
.section{padding:56px 0}
@media (min-width:1024px){.section{padding:88px 0}}
.section-tight{padding:44px 0}
@media (min-width:1024px){.section-tight{padding:60px 0}}
.section-line{border-top:1px solid var(--line)}

.section-head{margin-bottom:28px}
@media (min-width:1024px){.section-head{margin-bottom:40px}}
.section-kicker{
  display:block;font-size:12px;letter-spacing:.18em;color:var(--brand);
  text-transform:uppercase;margin-bottom:10px;
}
.section-title{font-size:26px;font-weight:700}
@media (min-width:1024px){.section-title{font-size:34px}}
.section-desc{margin-top:12px;color:var(--text-2);font-size:15px;max-width:660px}

h2 .idx,h3 .idx{
  font-size:12px;color:var(--brand);letter-spacing:.16em;font-weight:700;
  display:block;margin-bottom:8px;
}

/* quick facts */
.facts-grid{display:grid;grid-template-columns:1fr;gap:1px;background:var(--line);border:1px solid var(--line);border-radius:var(--radius-card);overflow:hidden}
@media (min-width:640px){.facts-grid{grid-template-columns:repeat(2,1fr)}}
@media (min-width:1024px){.facts-grid{grid-template-columns:repeat(4,1fr)}}
.fact{background:var(--bg-2);padding:22px 20px}
.fact dt{font-size:12.5px;color:var(--text-3);letter-spacing:.06em}
.fact dd{margin:10px 0 0;font-size:26px;font-weight:700;color:var(--text);letter-spacing:-.02em}
.fact dd small{font-size:13px;font-weight:500;color:var(--text-2);margin-left:4px;letter-spacing:0}
.fact p{margin-top:8px;font-size:13px;color:var(--text-3)}

/* terms layout */
.terms-grid{display:grid;grid-template-columns:1fr;gap:36px}
@media (min-width:1024px){.terms-grid{grid-template-columns:8fr 4fr;gap:48px}}
.terms-body{min-width:0}
.terms-block{padding:26px 0;border-bottom:1px solid var(--line)}
.terms-block:first-child{padding-top:0}
.terms-block:last-child{border-bottom:0;padding-bottom:0}
.terms-block h2{font-size:21px;font-weight:700;margin-bottom:14px}
@media (min-width:1024px){.terms-block h2{font-size:24px}}
.terms-block h3{font-size:16.5px;font-weight:650;margin:20px 0 8px;color:var(--text)}
.terms-block p{color:var(--text-2);font-size:15.5px;line-height:1.9}
.terms-block p + p{margin-top:14px}
.terms-block strong{color:var(--text);font-weight:650}

.dot-list{margin:14px 0 0;display:flex;flex-direction:column;gap:10px}
.dot-list li{position:relative;padding-left:18px;color:var(--text-2);font-size:15px;line-height:1.8}
.dot-list li::before{
  content:"";position:absolute;left:0;top:.72em;width:6px;height:6px;border-radius:50%;background:var(--brand);
}

.num-list{counter-reset:nl;display:flex;flex-direction:column;gap:0;margin-top:6px}
.num-list li{
  counter-increment:nl;position:relative;padding:14px 0 14px 44px;
  border-top:1px solid var(--line);color:var(--text-2);font-size:15px;line-height:1.8;
}
.num-list li:last-child{border-bottom:1px solid var(--line)}
.num-list li::before{
  content:counter(nl,decimal-leading-zero);
  position:absolute;left:0;top:14px;font-size:13px;font-weight:700;color:var(--brand);letter-spacing:.06em;
  font-variant-numeric:tabular-nums;
}

/* sidebar */
.side-sticky{display:flex;flex-direction:column;gap:20px}
@media (min-width:1024px){.side-sticky{position:sticky;top:92px}}
.side-card{
  background:var(--bg-2);border:1px solid var(--line);border-radius:var(--radius-card);
  padding:20px;box-shadow:var(--shadow-card);
}
.side-card h3{font-size:14px;font-weight:700;letter-spacing:.02em;margin-bottom:12px}
.side-toc{display:flex;flex-direction:column;gap:2px}
.side-toc a{
  font-size:13.5px;color:var(--text-2);padding:8px 10px;border-radius:6px;
  border-left:2px solid transparent;transition:all .2s var(--ease);
}
.side-toc a:hover{color:var(--text);background:rgba(242,239,232,.05);border-left-color:var(--brand)}
.side-toc a.is-current{color:var(--brand);border-left-color:var(--brand);background:rgba(182,255,60,.06)}
.side-points{display:flex;flex-direction:column;gap:14px}
.side-points li{font-size:13.5px;color:var(--text-2);line-height:1.75;padding-left:16px;position:relative}
.side-points li::before{content:"";position:absolute;left:0;top:.68em;width:5px;height:5px;border-radius:50%;background:var(--brand)}
.side-card img{border-radius:var(--radius-img);margin-bottom:14px;aspect-ratio:16/9;object-fit:cover;width:100%;border:1px solid var(--line)}
.side-note{font-size:12px;color:var(--text-3);line-height:1.7;margin-top:12px}

/* boundary list */
.boundary{border:1px solid var(--line);border-radius:var(--radius-card);overflow:hidden;background:var(--bg-2)}
.boundary-row{
  display:grid;grid-template-columns:1fr;gap:6px;
  padding:18px 20px;border-bottom:1px solid var(--line);
  transition:background .2s var(--ease);
}
.boundary-row:last-child{border-bottom:0}
.boundary-row:hover{background:var(--bg-3)}
.boundary-row h3{font-size:15.5px;font-weight:650;display:flex;align-items:center;gap:10px}
.boundary-row h3 .tag{
  font-size:11px;letter-spacing:.14em;color:var(--brand);border:1px solid rgba(182,255,60,.32);
  border-radius:999px;padding:2px 8px;font-weight:600;
}
.boundary-row p{font-size:14px;color:var(--text-2);line-height:1.8}
@media (min-width:768px){
  .boundary-row{grid-template-columns:6fr 6fr;gap:24px;align-items:center;padding:20px 24px}
}

/* FAQ */
.faq-wrap{border:1px solid var(--line);border-radius:var(--radius-card);overflow:hidden;background:var(--bg-2)}
.faq-item + .faq-item{border-top:1px solid var(--line)}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:18px;
  min-height:64px;padding:16px 20px;background:transparent;border:0;cursor:pointer;
  text-align:left;color:var(--text);font-size:15.5px;font-weight:600;line-height:1.5;
  transition:color .2s var(--ease),background .2s var(--ease);
}
.faq-q:hover{color:var(--brand);background:rgba(242,239,232,.03)}
.faq-icon{
  flex:none;position:relative;width:18px;height:18px;
}
.faq-icon::before,.faq-icon::after{
  content:"";position:absolute;left:0;top:8px;width:18px;height:2px;border-radius:2px;background:var(--brand);
  transition:transform .2s var(--ease),opacity .2s var(--ease);
}
.faq-icon::after{transform:rotate(90deg)}
.faq-item.open .faq-icon::after{transform:rotate(0deg);opacity:0}
.faq-a{max-height:0;overflow:hidden;opacity:0;transition:max-height .28s var(--ease),opacity .28s var(--ease)}
.faq-item.open .faq-a{max-height:420px;opacity:1}
.faq-a-inner{padding:0 20px 20px;color:var(--text-2);font-size:14.5px;line-height:1.85}

/* CTA band */
.cta-band{
  background:var(--brand);color:var(--brand-ink);border-radius:var(--radius-card);
  padding:28px 24px;display:grid;grid-template-columns:1fr;gap:20px;align-items:center;
}
@media (min-width:1024px){.cta-band{grid-template-columns:1fr auto;padding:34px 36px;gap:32px}}
.cta-band h2{font-size:22px;font-weight:800;color:var(--brand-ink)}
@media (min-width:1024px){.cta-band h2{font-size:28px}}
.cta-band p{margin-top:8px;font-size:14.5px;color:rgba(11,13,12,.78);max-width:640px;line-height:1.75}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px}
.btn-dark{background:var(--brand-ink);color:var(--brand)}
.btn-dark:hover{filter:brightness(1.25);transform:translateY(-1px)}
.btn-outline-dark{border-color:rgba(11,13,12,.32);color:var(--brand-ink);background:transparent}
.btn-outline-dark:hover{border-color:var(--brand-ink);background:rgba(11,13,12,.06)}
@media (max-width:520px){.cta-actions .btn{width:100%}}

/* footer */
.site-footer{border-top:1px solid var(--line);background:var(--bg-2);margin-top:0}
.footer-grid{
  display:grid;grid-template-columns:1fr;gap:32px;padding:52px 0 36px;
}
@media (min-width:768px){.footer-grid{grid-template-columns:repeat(2,1fr);gap:36px}}
@media (min-width:1024px){.footer-grid{grid-template-columns:1.4fr 1fr 1fr 1.1fr;padding:64px 0 44px}}
.footer-brand{font-size:17px;font-weight:800;letter-spacing:-.01em}
.footer-brand span{color:var(--brand);font-size:13px;font-weight:600;margin-left:6px}
.footer-text{margin-top:12px;font-size:13.5px;color:var(--text-3);line-height:1.85;max-width:320px}
.footer-h{font-size:12px;letter-spacing:.16em;color:var(--text-3);text-transform:uppercase;margin-bottom:14px}
.footer-link{
  display:block;font-size:14px;color:var(--text-2);padding:6px 0;
  transition:color .2s var(--ease),transform .2s var(--ease);
}
.footer-link:hover{color:var(--brand);transform:translateX(3px)}
.footer-contact{font-size:13.5px;color:var(--text-3);line-height:2}
.footer-bottom{
  border-top:1px solid var(--line);padding:20px 0 28px;
  display:flex;flex-wrap:wrap;gap:8px 24px;justify-content:space-between;
  font-size:12px;color:var(--text-3);
}

/* to top */
.to-top{
  position:fixed;right:20px;bottom:20px;z-index:55;
  width:44px;height:44px;border-radius:50%;
  background:var(--bg-3);color:var(--text);border:1px solid var(--line-strong);
  display:inline-flex;align-items:center;justify-content:center;cursor:pointer;
  opacity:0;pointer-events:none;transform:translateY(10px);
  transition:all .25s var(--ease);box-shadow:var(--shadow-pop);
}
.to-top.is-visible{opacity:1;pointer-events:auto;transform:none}
.to-top:hover{border-color:var(--brand);color:var(--brand)}

/* reveal */
.reveal{opacity:0;transform:translateY(12px);transition:opacity .6s var(--ease),transform .6s var(--ease)}
.reveal.in{opacity:1;transform:none}

@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation-duration:.001ms!important;animation-iteration-count:1!important;transition-duration:.001ms!important}
  .reveal{opacity:1;transform:none}
}