/* roulang page: index */
:root{
  --ink-900:#0C2622;
  --ink-700:#14403A;
  --lime-400:#C8F04B;
  --lime-600:#9ACB1E;
  --amber-500:#F2A33C;
  --paper:#F7F6F1;
  --card:#FFFFFF;
  --line:#E3E2DA;
  --text:#1E2B28;
  --muted:#63736E;
  --radius-card:16px;
  --radius-img:12px;
  --radius-btn:10px;
  --shadow-card:0 1px 2px rgba(12,38,34,.05),0 8px 24px rgba(12,38,34,.06);
  --shadow-hover:0 12px 32px rgba(12,38,34,.12);
  --font-cn:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC",-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;
  --maxw:1200px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body{
  margin:0;
  background:var(--paper);
  color:var(--text);
  font-family:var(--font-cn);
  font-size:16px;
  line-height:1.75;
  font-weight:400;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;height:auto;}
a{color:var(--ink-700);text-decoration:none;transition:color .18s ease;}
a:hover{color:var(--lime-600);}
a:focus-visible,
button:focus-visible,
input:focus-visible{outline:none;box-shadow:0 0 0 3px rgba(200,240,75,.45);border-radius:8px;}
h1,h2,h3,h4{margin:0;color:var(--ink-900);font-weight:700;letter-spacing:-.01em;}
p{margin:0;}
ul{margin:0;padding:0;list-style:none;}
button{font-family:inherit;cursor:pointer;}
input{font-family:inherit;}

.container{
  width:100%;
  max-width:var(--maxw);
  margin:0 auto;
  padding:0 24px;
}
.section{padding:96px 0;}
.section--tight{padding:72px 0;}
.section--dark{background:var(--ink-900);color:#E8EDE9;}
.section--dark h2,.section--dark h3{color:#FFFFFF;}

/* ===== 顶部导航 ===== */
.site-header{
  position:sticky;
  top:0;
  z-index:60;
  background:var(--ink-900);
  color:#fff;
  transition:box-shadow .2s ease,border-color .2s ease;
  border-bottom:1px solid transparent;
}
.site-header.is-scrolled{
  border-bottom:1px solid var(--lime-400);
  box-shadow:0 6px 24px rgba(12,38,34,.28);
}
.nav{
  display:flex;
  align-items:center;
  gap:20px;
  height:68px;
}
.brand{
  display:flex;
  align-items:center;
  gap:10px;
  flex:0 0 auto;
  color:#fff;
}
.brand:hover{color:var(--lime-400);}
.brand__mark{
  width:20px;height:20px;
  border-radius:6px;
  background:var(--lime-400);
  display:flex;align-items:center;justify-content:center;
  flex:0 0 20px;
}
.brand__mark i{font-size:10px;color:var(--ink-900);}
.brand__text{display:flex;flex-direction:column;line-height:1.15;}
.brand__main{font-size:16px;font-weight:800;letter-spacing:.02em;color:#fff;}
.brand__sub{font-size:11px;letter-spacing:.24em;color:var(--lime-400);font-weight:600;}
.brand:hover .brand__main{color:var(--lime-400);}

.nav__channels{
  display:flex;
  align-items:center;
  gap:24px;
  margin-left:12px;
  flex:1 1 auto;
}
.nav__link{
  position:relative;
  font-size:15px;
  font-weight:600;
  color:rgba(255,255,255,.82);
  padding:22px 0;
  white-space:nowrap;
}
.nav__link::after{
  content:"";
  position:absolute;
  left:0;right:0;bottom:12px;
  height:3px;
  border-radius:3px;
  background:transparent;
  transition:background .18s ease;
}
.nav__link:hover{color:#fff;}
.nav__link:hover::after{background:rgba(200,240,75,.4);}
.nav__link.is-active{color:#fff;}
.nav__link.is-active::after{background:var(--lime-400);}

.nav__tools{display:flex;align-items:center;gap:12px;flex:0 0 auto;}
.nav__search{
  display:flex;align-items:center;gap:8px;
  height:40px;
  padding:0 16px;
  border-radius:999px;
  background:rgba(255,255,255,.08);
  border:1px solid rgba(255,255,255,.14);
  transition:border-color .18s ease,background .18s ease;
}
.nav__search:focus-within{
  border-color:var(--lime-400);
  background:rgba(255,255,255,.13);
}
.nav__search i{color:rgba(255,255,255,.6);font-size:13px;}
.nav__search input{
  width:140px;
  border:0;background:transparent;
  color:#fff;font-size:14px;
  height:36px;
}
.nav__search input::placeholder{color:rgba(255,255,255,.5);}
.nav__search input:focus{outline:none;box-shadow:none;}
.nav__entry{
  font-size:14px;font-weight:600;color:rgba(255,255,255,.85);
  padding:8px 12px;border-radius:8px;transition:background .18s ease,color .18s ease;
}
.nav__entry:hover{color:#fff;background:rgba(255,255,255,.08);}
.btn-lime{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:40px;padding:0 18px;
  border:0;border-radius:var(--radius-btn);
  background:var(--lime-400);
  color:var(--ink-900)!important;
  font-size:14px;font-weight:700;
  transition:background .18s ease,transform .18s ease;
}
.btn-lime:hover{background:var(--lime-600);transform:translateY(-1px);}
.btn-lime:active{transform:translateY(0);}

.nav__burger{
  display:none;
  width:44px;height:44px;
  border:1px solid rgba(255,255,255,.2);
  background:transparent;color:#fff;border-radius:10px;
  font-size:18px;
}
.nav__burger:hover{border-color:var(--lime-400);color:var(--lime-400);}

.drawer{
  display:none;
  background:var(--ink-900);
  border-top:1px solid rgba(255,255,255,.1);
}
.drawer.is-open{display:block;}
.drawer a{
  display:block;
  height:56px;line-height:56px;
  padding:0 24px;
  color:#fff;font-size:16px;font-weight:600;
  border-bottom:1px solid rgba(255,255,255,.08);
}
.drawer a:hover{background:rgba(200,240,75,.12);color:var(--lime-400);}
.drawer a.is-active{color:var(--lime-400);}

/* ===== Hero ===== */
.hero{
  position:relative;
  background:
    linear-gradient(180deg,rgba(12,38,34,.94),rgba(12,38,34,.88)),
    url('/assets/images/backpic/back-1.png') center/cover no-repeat;
  color:#fff;
  padding:64px 0 80px;
  overflow:hidden;
}
.hero::after{
  content:"";
  position:absolute;
  right:-140px;top:-140px;
  width:420px;height:420px;border-radius:50%;
  background:radial-gradient(circle,rgba(200,240,75,.18),transparent 68%);
  pointer-events:none;
}
.hero__grid{
  display:grid;
  grid-template-columns:minmax(0,1.4fr) minmax(0,1fr);
  gap:40px;
  align-items:start;
  position:relative;
  z-index:1;
}
.hero__cover{
  position:relative;
  border-radius:var(--radius-card);
  overflow:hidden;
  box-shadow:0 18px 48px rgba(0,0,0,.35);
  background:#0A1E1B;
}
.hero__cover img{
  width:100%;
  aspect-ratio:16/9;
  object-fit:cover;
  transition:transform .5s ease;
}
.hero__cover:hover img{transform:scale(1.03);}
.hero__badge{
  position:absolute;
  right:16px;bottom:16px;
  display:inline-flex;align-items:center;gap:8px;
  padding:8px 14px;
  border-radius:999px;
  background:var(--amber-500);
  color:var(--ink-900);
  font-size:13px;font-weight:700;
}
.dot-live{
  width:8px;height:8px;border-radius:50%;
  background:var(--ink-900);
  animation:pulse 1.6s ease-in-out infinite;
}
@keyframes pulse{
  0%,100%{transform:scale(.75);opacity:.55;}
  50%{transform:scale(1);opacity:1;}
}
.hero__meta{
  display:flex;flex-wrap:wrap;gap:10px;
  margin-top:16px;
}
.chip{
  display:inline-flex;align-items:center;gap:6px;
  padding:6px 12px;border-radius:999px;
  font-size:13px;font-weight:600;
  background:rgba(255,255,255,.1);
  border:1px solid rgba(255,255,255,.16);
  color:rgba(255,255,255,.88);
}
.chip i{color:var(--lime-400);font-size:12px;}

.hero__info{padding-top:4px;}
.hero__eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;font-weight:700;letter-spacing:.12em;
  color:var(--lime-400);
  text-transform:uppercase;
  margin-bottom:14px;
}
.hero h1{
  font-size:48px;
  line-height:1.2;
  font-weight:800;
  color:#fff;
  letter-spacing:-.01em;
}
.hero__lead{
  margin-top:16px;
  font-size:16px;
  line-height:1.8;
  color:rgba(255,255,255,.78);
}
.countdown{
  display:flex;
  gap:12px;
  margin-top:26px;
}
.countdown__unit{
  flex:1 1 0;
  min-width:0;
  background:var(--ink-900);
  border:1px solid rgba(200,240,75,.28);
  border-radius:var(--radius-btn);
  padding:12px 6px 10px;
  text-align:center;
}
.countdown__num{
  display:block;
  font-size:24px;
  font-weight:800;
  color:var(--lime-400);
  font-variant-numeric:tabular-nums;
  letter-spacing:.02em;
  transition:opacity .2s ease;
}
.countdown__num.is-tick{opacity:.35;}
.countdown__label{
  display:block;
  margin-top:2px;
  font-size:12px;
  color:rgba(255,255,255,.62);
  font-weight:500;
}
.remind-form{
  display:flex;
  gap:10px;
  margin-top:26px;
}
.remind-form input{
  flex:1 1 auto;
  min-width:0;
  height:48px;
  padding:0 16px;
  border-radius:var(--radius-btn);
  border:1px solid rgba(255,255,255,.22);
  background:#fff;
  color:var(--text);
  font-size:15px;
}
.remind-form input::placeholder{color:#9AA6A1;}
.remind-form input:focus{
  outline:none;
  border-color:var(--lime-600);
  box-shadow:0 0 0 3px rgba(200,240,75,.35);
}
.remind-form button{
  flex:0 0 auto;
  height:48px;
  padding:0 22px;
  border:0;border-radius:var(--radius-btn);
  background:var(--lime-400);color:var(--ink-900);
  font-size:15px;font-weight:700;
  transition:background .18s ease,transform .18s ease;
}
.remind-form button:hover{background:var(--lime-600);transform:translateY(-1px);}
.remind-form button:active{transform:translateY(0);}
.remind-note{
  margin-top:10px;
  font-size:13px;
  color:rgba(255,255,255,.6);
}
.hero__links{
  display:flex;flex-wrap:wrap;gap:18px;
  margin-top:22px;
}
.hero__links a{
  font-size:14px;font-weight:600;
  color:var(--lime-400);
  display:inline-flex;align-items:center;gap:6px;
}
.hero__links a:hover{color:#fff;}
.form-msg{
  margin-top:10px;
  font-size:13px;
  color:var(--lime-400);
  min-height:18px;
}

/* ===== 通用板块标题 ===== */
.sec-head{
  display:flex;
  align-items:flex-end;
  justify-content:space-between;
  gap:24px;
  margin-bottom:40px;
}
.sec-head__title{max-width:720px;}
.sec-head h2{
  font-size:32px;
  line-height:1.3;
}
.sec-head p{
  margin-top:10px;
  color:var(--muted);
  font-size:16px;
}
.sec-head__link{
  flex:0 0 auto;
  font-size:14px;font-weight:700;
  color:var(--ink-700);
  display:inline-flex;align-items:center;gap:6px;
  border-bottom:2px solid rgba(12,38,34,.15);
  padding-bottom:2px;
}
.sec-head__link:hover{color:var(--lime-600);border-color:var(--lime-600);}
.section--dark .sec-head p{color:rgba(255,255,255,.68);}
.section--dark .sec-head__link{color:var(--lime-400);border-color:rgba(200,240,75,.4);}
.section--dark .sec-head__link:hover{color:#fff;border-color:#fff;}

/* ===== 看点列表 ===== */
.highlight-grid{
  display:grid;
  grid-template-columns:repeat(2,minmax(0,1fr));
  gap:0 56px;
}
.highlight-col--offset{margin-top:24px;}
.highlight-item{
  display:flex;
  gap:20px;
  padding:24px 16px 24px 0;
  border-bottom:1px solid var(--line);
  transition:background .18s ease,transform .18s ease;
}
.highlight-item:hover{
  background:rgba(200,240,75,.08);
  transform:translateX(4px);
}
.highlight-item__num{
  flex:0 0 auto;
  font-size:30px;
  font-weight:800;
  color:var(--lime-400);
  font-variant-numeric:tabular-nums;
  line-height:1.1;
  letter-spacing:.02em;
  text-shadow:0 1px 0 rgba(12,38,34,.12);
}
.highlight-item h3{
  font-size:20px;
  font-weight:600;
  margin-bottom:6px;
}
.highlight-item p{
  font-size:15px;
  color:var(--muted);
  line-height:1.7;
}

/* ===== 数据 / 指标卡 ===== */
.metric-grid{
  display:grid;
  grid-template-columns:repeat(4,minmax(0,1fr));
  gap:20px;
}
.metric-card{
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  padding:24px;
  box-shadow:var(--shadow-card);
  transition:transform .18s ease,box-shadow .18s ease;
}
.metric-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-hover);}
.metric-card__label{
  font-size:13px;font-weight:600;color:var(--muted);
  display:flex;align-items:center;gap:8px;
}
.metric-card__label i{color:var(--amber-500);}
.metric-card__value{
  margin-top:12px;
  font-size:34px;
  font-weight:800;
  color:var(--ink-900);
  font-variant-numeric:tabular-nums;
  line-height:1.1;
}
.metric-card__value small{font-size:15px;font-weight:600;color:var(--muted);margin-left:4px;}
.metric-card__desc{
  margin-top:8px;
  font-size:14px;
  color:var(--muted);
  line-height:1.7;
}

/* ===== CMS 内容卡片 ===== */
.card-grid{
  display:grid;
  grid-template-columns:repeat(3,minmax(0,1fr));
  gap:20px;
}
.post-card{
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  overflow:hidden;
  box-shadow:var(--shadow-card);
  transition:transform .18s ease,box-shadow .18s ease;
  height:100%;
  display:flex;
  flex-direction:column;
}
.post-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-hover);}
.post-card__thumb{
  overflow:hidden;
  aspect-ratio:4/3;
  background:#EAEFE8;
}
.post-card__thumb img{
  width:100%;height:100%;object-fit:cover;
  transition:transform .35s ease;
}
.post-card:hover .post-card__thumb img{transform:scale(1.03);}
.post-card__body{padding:20px 22px 22px;display:flex;flex-direction:column;gap:10px;flex:1 1 auto;}
.badge{
  display:inline-flex;align-items:center;
  padding:4px 10px;
  border-radius:999px;
  font-size:12px;font-weight:700;
  background:rgba(242,163,60,.16);
  color:#8A5410;
  border:1px solid rgba(242,163,60,.35);
  align-self:flex-start;
}
.post-card h3{
  font-size:20px;
  line-height:1.45;
  font-weight:600;
  display:-webkit-box;
  -webkit-line-clamp:2;
  -webkit-box-orient:vertical;
  overflow:hidden;
  transition:color .18s ease;
}
.post-card:hover h3{color:var(--ink-700);}
.post-card p{
  font-size:15px;
  color:var(--muted);
  line-height:1.7;
  display:-webkit-box;
  -webkit-line-clamp:2;
  -webkit-box-orient:vertical;
  overflow:hidden;
}
.post-card__foot{
  margin-top:auto;
  display:flex;align-items:center;justify-content:space-between;
  padding-top:12px;
  border-top:1px solid var(--line);
  font-size:13px;
  color:var(--muted);
}
.post-card__foot span{display:inline-flex;align-items:center;gap:6px;}
.post-card__link{display:block;color:inherit;}
.post-card__more{font-weight:700;color:var(--ink-700);}
.post-card:hover .post-card__more{color:var(--lime-600);}

.empty-state{
  grid-column:1 / -1;
  text-align:center;
  background:var(--card);
  border:1px dashed var(--line);
  border-radius:var(--radius-card);
  padding:56px 24px;
}
.empty-state i{
  font-size:28px;
  color:var(--muted);
  margin-bottom:14px;
  display:block;
}
.empty-state p{color:var(--muted);font-size:15px;margin-bottom:20px;}
.btn-ghost{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 22px;
  border-radius:var(--radius-btn);
  border:1.5px solid var(--ink-700);
  background:transparent;
  color:var(--ink-900);
  font-size:15px;font-weight:700;
  transition:background .18s ease,transform .18s ease;
}
.btn-ghost:hover{background:rgba(12,38,34,.06);transform:translateY(-1px);color:var(--ink-900);}
.btn-ghost:active{transform:translateY(0);}

/* ===== 频道入口条 ===== */
.channel-strip{
  display:flex;
  gap:16px;
  overflow-x:auto;
  padding-bottom:8px;
  scrollbar-width:thin;
}
.channel-card{
  flex:0 0 280px;
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  padding:22px;
  box-shadow:var(--shadow-card);
  transition:transform .18s ease,box-shadow .18s ease,border-color .18s ease;
  display:flex;
  flex-direction:column;
  gap:8px;
}
.channel-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-hover);border-color:var(--lime-600);}
.channel-card__icon{
  width:40px;height:40px;border-radius:12px;
  background:rgba(200,240,75,.35);
  color:var(--ink-900);
  display:flex;align-items:center;justify-content:center;
  font-size:16px;
}
.channel-card h3{font-size:18px;font-weight:600;color:var(--ink-900);}
.channel-card p{font-size:14px;color:var(--muted);line-height:1.7;}
.channel-card__go{
  margin-top:6px;
  font-size:13px;font-weight:700;color:var(--ink-700);
  display:inline-flex;align-items:center;gap:6px;
}
.channel-card:hover .channel-card__go{color:var(--lime-600);}

/* ===== FAQ ===== */
.faq-list{display:flex;flex-direction:column;gap:12px;}
.faq-item{
  position:relative;
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  overflow:hidden;
  transition:box-shadow .18s ease;
}
.faq-item::before{
  content:"";
  position:absolute;left:0;top:0;bottom:0;
  width:4px;background:var(--lime-400);
  opacity:0;
  transition:opacity .18s ease;
}
.faq-item.is-open{box-shadow:var(--shadow-card);}
.faq-item.is-open::before{opacity:1;}
.faq-q{
  width:100%;
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:20px 24px;
  background:transparent;border:0;
  text-align:left;
  font-size:17px;font-weight:600;color:var(--ink-900);
  transition:background .18s ease;
}
.faq-q:hover{background:rgba(200,240,75,.08);}
.faq-q i{
  flex:0 0 auto;
  font-size:14px;color:var(--ink-700);
  transition:transform .22s ease;
}
.faq-item.is-open .faq-q i{transform:rotate(45deg);color:var(--lime-600);}
.faq-a{
  max-height:0;
  overflow:hidden;
  transition:max-height .28s ease;
}
.faq-a__inner{
  padding:0 24px 22px 24px;
  font-size:16px;
  color:var(--muted);
  line-height:1.75;
}

/* ===== CTA ===== */
.cta-band{
  background:var(--ink-900);
  border-radius:24px;
  padding:56px 48px;
  color:#fff;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:32px;
  position:relative;
  overflow:hidden;
}
.cta-band::after{
  content:"";
  position:absolute;right:-60px;bottom:-80px;
  width:260px;height:260px;border-radius:50%;
  background:radial-gradient(circle,rgba(200,240,75,.2),transparent 70%);
}
.cta-band h2{font-size:30px;color:#fff;position:relative;z-index:1;}
.cta-band p{
  margin-top:12px;
  color:rgba(255,255,255,.72);
  font-size:16px;
  max-width:640px;
  position:relative;z-index:1;
}
.cta-band__actions{
  display:flex;gap:14px;flex-wrap:wrap;
  position:relative;z-index:1;
}
.btn-lime--lg{height:52px;padding:0 28px;font-size:16px;}
.btn-outline-light{
  display:inline-flex;align-items:center;justify-content:center;
  height:52px;padding:0 26px;
  border-radius:var(--radius-btn);
  border:1.5px solid rgba(255,255,255,.4);
  color:#fff;font-size:16px;font-weight:700;
  background:transparent;
  transition:background .18s ease,border-color .18s ease;
}
.btn-outline-light:hover{background:rgba(255,255,255,.1);border-color:#fff;color:#fff;}

/* ===== 页脚 ===== */
.site-footer{
  background:var(--ink-900);
  color:rgba(255,255,255,.72);
  padding:64px 0 0;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.6fr 1fr 1fr 1.4fr;
  gap:40px;
  padding-bottom:44px;
}
.footer-brand .brand{margin-bottom:16px;}
.footer-brand p{font-size:14px;line-height:1.8;color:rgba(255,255,255,.62);max-width:320px;}
.footer-col h4{
  font-size:14px;font-weight:700;color:var(--lime-400);
  margin-bottom:16px;letter-spacing:.04em;
}
.footer-col li{margin-bottom:10px;}
.footer-col a{font-size:14px;color:rgba(255,255,255,.72);}
.footer-col a:hover{color:var(--lime-400);}
.footer-sub p{font-size:14px;color:rgba(255,255,255,.62);line-height:1.8;margin-bottom:14px;}
.footer-sub form{display:flex;gap:8px;}
.footer-sub input{
  flex:1 1 auto;min-width:0;
  height:44px;padding:0 14px;
  border-radius:var(--radius-btn);
  border:1px solid rgba(255,255,255,.2);
  background:rgba(255,255,255,.06);
  color:#fff;font-size:14px;
}
.footer-sub input::placeholder{color:rgba(255,255,255,.45);}
.footer-sub input:focus{outline:none;border-color:var(--lime-400);box-shadow:0 0 0 3px rgba(200,240,75,.25);}
.footer-sub button{
  flex:0 0 auto;height:44px;padding:0 18px;
  border:0;border-radius:var(--radius-btn);
  background:var(--lime-400);color:var(--ink-900);
  font-size:14px;font-weight:700;
  transition:background .18s ease;
}
.footer-sub button:hover{background:var(--lime-600);}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.12);
  padding:20px 0 26px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  font-size:13px;
  color:rgba(255,255,255,.5);
}
.footer-bottom a{color:rgba(255,255,255,.6);}
.footer-bottom a:hover{color:var(--lime-400);}

/* ===== 断点 ===== */
@media screen and (max-width:1200px){
  .hero h1{font-size:42px;}
  .footer-grid{grid-template-columns:1.4fr 1fr 1fr;gap:32px;}
  .footer-sub{grid-column:1 / -1;}
}
@media screen and (max-width:1024px){
  .nav__channels{display:none;}
  .nav__search{display:none;}
  .nav__burger{display:inline-flex;align-items:center;justify-content:center;}
  .nav{justify-content:space-between;}
  .nav__tools{margin-left:auto;}
  .hero__grid{grid-template-columns:1fr;gap:32px;}
  .hero h1{font-size:36px;}
  .metric-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .card-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .cta-band{flex-direction:column;align-items:flex-start;padding:44px 32px;}
}
@media screen and (max-width:768px){
  .container{padding:0 16px;}
  .section{padding:56px 0;}
  .section--tight{padding:48px 0;}
  .hero{padding:40px 0 56px;}
  .hero h1{font-size:31px;}
  .hero__lead{font-size:15px;}
  .highlight-grid{grid-template-columns:1fr;gap:0;}
  .highlight-col--offset{margin-top:0;}
  .sec-head{flex-direction:column;align-items:flex-start;gap:12px;}
  .sec-head h2{font-size:24px;}
  .card-grid{grid-template-columns:1fr;}
  .metric-grid{grid-template-columns:1fr;}
  .cta-band{padding:36px 24px;border-radius:18px;}
  .cta-band h2{font-size:24px;}
  .footer-grid{grid-template-columns:1fr;gap:28px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
}
@media screen and (max-width:520px){
  .brand__main{font-size:15px;}
  .brand__sub{font-size:10px;letter-spacing:.18em;}
  .hero h1{font-size:28px;}
  .countdown{gap:8px;}
  .countdown__num{font-size:20px;}
  .remind-form{flex-direction:column;}
  .remind-form button{width:100%;}
  .channel-card{flex:0 0 240px;}
  .highlight-item__num{font-size:24px;}
  .btn-outline-light,.btn-lime--lg{width:100%;}
  .cta-band__actions{width:100%;}
}

/* roulang page: article */
:root{
  --ink-900:#0C2622;
  --ink-700:#14403A;
  --lime-400:#C8F04B;
  --lime-600:#9ACB1E;
  --amber-500:#F2A33C;
  --paper:#F7F6F1;
  --card:#FFFFFF;
  --line:#E3E2DA;
  --text:#1E2B28;
  --muted:#63736E;
  --radius-card:16px;
  --radius-img:12px;
  --radius-btn:10px;
  --shadow-card:0 1px 2px rgba(12,38,34,.05),0 8px 24px rgba(12,38,34,.06);
  --shadow-hover:0 12px 32px rgba(12,38,34,.12);
  --nav-h:68px;
  --font-cn:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC","Source Han Sans SC",system-ui,-apple-system,"Segoe UI",sans-serif;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--paper);
  color:var(--text);
  font-family:var(--font-cn);
  font-size:17px;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;display:block;}
a{color:var(--ink-700);text-decoration:none;transition:color .18s ease,border-color .18s ease,background-color .18s ease;}
a:hover{color:var(--lime-600);}
h1,h2,h3,h4,p,ul,ol,figure{margin:0;padding:0;}
ul,ol{list-style:none;}
button,input{font-family:inherit;font-size:inherit;color:inherit;}
button{cursor:pointer;border:0;background:none;}
:focus-visible{outline:3px solid rgba(200,240,75,.55);outline-offset:2px;}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px;}
.section{padding:88px 0;}
.section--tight{padding:56px 0;}
.section--paper{background:var(--paper);}
.tnum{font-variant-numeric:tabular-nums;}

/* ---------- header / nav ---------- */
.site-header{
  position:sticky;top:0;z-index:80;
  background:var(--ink-900);
  border-bottom:1px solid transparent;
  transition:border-color .2s ease,box-shadow .2s ease;
}
.site-header.is-scrolled{border-bottom-color:var(--lime-400);box-shadow:0 6px 20px rgba(12,38,34,.18);}
.nav{
  max-width:1200px;margin:0 auto;padding:0 24px;
  height:var(--nav-h);
  display:flex;align-items:center;gap:20px;
}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto;color:#fff;}
.brand:hover{color:#fff;}
.brand__mark{
  width:26px;height:26px;border-radius:8px;
  display:inline-flex;align-items:center;justify-content:center;
  background:var(--lime-400);color:var(--ink-900);
  font-size:13px;flex:0 0 auto;
}
.brand__text{display:flex;flex-direction:column;line-height:1.1;}
.brand__main{font-size:17px;font-weight:800;letter-spacing:-.01em;white-space:nowrap;}
.brand__sub{font-size:10px;letter-spacing:.22em;color:var(--lime-400);font-weight:600;}
.nav__channels{display:flex;align-items:center;gap:6px;flex:1 1 auto;}
.nav__link{
  position:relative;display:inline-flex;align-items:center;
  height:var(--nav-h);padding:0 14px;
  font-size:15px;font-weight:500;color:rgba(255,255,255,.82);
}
.nav__link::after{
  content:"";position:absolute;left:14px;right:14px;bottom:14px;height:3px;
  background:var(--lime-400);border-radius:2px;transform:scaleX(0);transform-origin:left;
  transition:transform .18s ease;
}
.nav__link:hover{color:#fff;}
.nav__link:hover::after{transform:scaleX(1);}
.nav__link.is-active{color:#fff;font-weight:700;}
.nav__link.is-active::after{transform:scaleX(1);}
.nav__tools{display:flex;align-items:center;gap:12px;flex:0 0 auto;}
.nav__search{
  position:relative;display:flex;align-items:center;
  width:230px;height:40px;border-radius:999px;
  background:rgba(255,255,255,.09);border:1px solid rgba(255,255,255,.16);
  padding:0 14px;transition:border-color .18s ease,background-color .18s ease;
}
.nav__search i{color:rgba(255,255,255,.6);font-size:13px;margin-right:8px;}
.nav__search input{
  width:100%;border:0;background:transparent;color:#fff;font-size:14px;outline:none;
}
.nav__search input::placeholder{color:rgba(255,255,255,.5);}
.nav__search:focus-within{border-color:var(--lime-600);background:rgba(255,255,255,.14);}
.nav__entry{
  font-size:15px;font-weight:600;color:rgba(255,255,255,.86);
  padding:6px 4px;border-bottom:1.5px solid transparent;
}
.nav__entry:hover{color:var(--lime-400);border-bottom-color:var(--lime-400);}
.btn-lime{
  display:inline-flex;align-items:center;justify-content:center;
  height:48px;padding:0 24px;border-radius:var(--radius-btn);
  background:var(--lime-400);color:var(--ink-900);
  font-size:16px;font-weight:700;white-space:nowrap;
  transition:background-color .18s ease,transform .18s ease,box-shadow .18s ease;
}
.btn-lime:hover{background:var(--lime-600);color:var(--ink-900);transform:translateY(-1px);}
.btn-lime:active{transform:translateY(0);}
.nav__tools .btn-lime{height:40px;padding:0 18px;font-size:14px;}
.btn-ghost{
  display:inline-flex;align-items:center;justify-content:center;
  height:48px;padding:0 24px;border-radius:var(--radius-btn);
  background:transparent;border:1.5px solid var(--ink-700);color:var(--ink-900);
  font-size:16px;font-weight:600;
  transition:background-color .18s ease,transform .18s ease,border-color .18s ease;
}
.btn-ghost:hover{background:rgba(12,38,34,.06);color:var(--ink-900);transform:translateY(-1px);}
.btn-ghost-dark{
  display:inline-flex;align-items:center;justify-content:center;
  height:48px;padding:0 24px;border-radius:var(--radius-btn);
  background:transparent;border:1.5px solid rgba(255,255,255,.45);color:#fff;
  font-size:16px;font-weight:600;transition:background-color .18s ease,border-color .18s ease;
}
.btn-ghost-dark:hover{background:rgba(255,255,255,.1);border-color:var(--lime-400);color:#fff;}
.nav__burger{
  display:none;width:42px;height:42px;border-radius:10px;
  background:rgba(255,255,255,.1);color:#fff;font-size:17px;
  align-items:center;justify-content:center;
  transition:background-color .18s ease;
}
.nav__burger:hover{background:rgba(200,240,75,.22);}

/* ---------- breadcrumb + hero ---------- */
.page-hero{
  position:relative;overflow:hidden;
  background:var(--ink-900);color:#fff;
  padding:34px 0 60px;
}
.page-hero::before{
  content:"";position:absolute;inset:0;
  background-image:url('/assets/images/backpic/back-2.webp');
  background-size:cover;background-position:center;
  opacity:.3;
}
.page-hero::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(12,38,34,.78) 0%,rgba(12,38,34,.95) 100%);
}
.page-hero .container{position:relative;z-index:2;}
.crumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:rgba(255,255,255,.7);margin-bottom:26px;}
.crumb a{color:rgba(255,255,255,.82);}
.crumb a:hover{color:var(--lime-400);}
.crumb__sep{color:rgba(255,255,255,.35);}
.crumb__now{color:rgba(255,255,255,.6);max-width:520px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;}
.badge-amber{
  display:inline-flex;align-items:center;gap:6px;
  padding:5px 13px;border-radius:999px;
  background:rgba(242,163,60,.18);color:var(--amber-500);
  border:1px solid rgba(242,163,60,.42);
  font-size:13px;font-weight:600;
}
.page-hero h1{
  margin-top:18px;
  font-size:46px;font-weight:800;line-height:1.22;letter-spacing:-.01em;
  color:#fff;max-width:900px;
}
.article-meta{
  display:flex;flex-wrap:wrap;align-items:center;gap:10px 22px;
  margin-top:24px;font-size:14px;color:rgba(255,255,255,.68);
}
.article-meta span{display:inline-flex;align-items:center;gap:7px;}
.article-meta i{color:var(--lime-400);font-size:13px;}
.meta-divider{width:1px;height:14px;background:rgba(255,255,255,.22);}

/* ---------- article body ---------- */
.article-wrap{padding:64px 0 88px;background:var(--paper);}
.article-shell{
  max-width:760px;margin:0 auto;
  background:var(--card);border:1px solid var(--line);
  border-radius:var(--radius-card);
  padding:44px 48px 40px;
  box-shadow:var(--shadow-card);
}
.article-body{font-size:17px;line-height:1.8;color:var(--text);}
.article-body > * + *{margin-top:1.2em;}
.article-body p{margin:0;}
.article-body h2{
  font-size:30px;font-weight:700;line-height:1.35;color:var(--ink-900);
  margin-top:1.9em;padding-left:14px;border-left:4px solid var(--lime-400);
}
.article-body h3{font-size:21px;font-weight:600;color:var(--ink-700);margin-top:1.6em;}
.article-body h4{font-size:18px;font-weight:600;color:var(--ink-700);}
.article-body ul{list-style:disc;padding-left:1.4em;}
.article-body ol{list-style:decimal;padding-left:1.5em;}
.article-body li{margin:.5em 0;}
.article-body a{color:var(--ink-700);border-bottom:1px solid var(--lime-600);}
.article-body a:hover{color:var(--lime-600);}
.article-body blockquote{
  border-left:4px solid var(--lime-400);
  background:rgba(200,240,75,.12);
  color:var(--ink-700);
  padding:16px 22px;border-radius:0 12px 12px 0;
}
.article-body code{
  background:rgba(12,38,34,.07);color:var(--ink-700);
  padding:2px 7px;border-radius:6px;font-size:.92em;
  font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;
}
.article-body pre{
  background:var(--ink-900);color:#E7F0EB;
  padding:18px 20px;border-radius:12px;overflow-x:auto;font-size:14px;line-height:1.7;
}
.article-body pre code{background:transparent;color:inherit;padding:0;}
.article-body img{border-radius:var(--radius-img);margin:1.6em auto;height:auto;}
.article-body figure{margin:1.6em 0;}
.article-body figcaption{font-size:13px;color:var(--muted);text-align:center;margin-top:10px;}
.article-body table{
  width:100%;border-collapse:collapse;
  border:1px solid var(--line);font-size:15px;
}
.article-body th{background:var(--paper);color:var(--ink-900);text-align:left;font-weight:600;}
.article-body th,.article-body td{border:1px solid var(--line);padding:11px 14px;}
.article-body hr{border:0;border-top:1px solid var(--line);margin:2em 0;}
.article-shell__foot{
  margin-top:36px;padding-top:26px;border-top:1px solid var(--line);
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:16px;
}
.tag-row{display:flex;flex-wrap:wrap;gap:8px;}
.tag{
  display:inline-flex;align-items:center;
  padding:5px 13px;border-radius:999px;
  background:rgba(20,64,58,.07);color:var(--ink-700);
  border:1px solid var(--line);font-size:13px;font-weight:500;
}
.tag:hover{background:rgba(200,240,75,.28);color:var(--ink-900);border-color:var(--lime-600);}
.empty-state{
  text-align:center;padding:56px 20px;color:var(--muted);
}
.empty-state i{font-size:34px;color:var(--lime-600);margin-bottom:16px;display:block;}
.empty-state h2{font-size:24px;color:var(--ink-900);font-weight:700;margin-bottom:10px;}
.empty-state p{font-size:15px;margin-bottom:22px;}
.note-box{
  display:flex;gap:14px;align-items:flex-start;
  background:var(--paper);border:1px solid var(--line);
  border-radius:var(--radius-img);padding:18px 20px;
  font-size:15px;color:var(--ink-700);line-height:1.7;
  margin-top:26px;
}
.note-box i{color:var(--lime-600);font-size:16px;margin-top:3px;}

/* ---------- section title ---------- */
.section-head{
  display:flex;align-items:flex-end;justify-content:space-between;
  gap:20px;margin-bottom:34px;
}
.section-head h2{font-size:32px;font-weight:700;color:var(--ink-900);letter-spacing:-.01em;}
.section-head p{margin-top:8px;color:var(--muted);font-size:15px;}
.link-more{font-size:15px;font-weight:600;color:var(--ink-700);display:inline-flex;align-items:center;gap:6px;}
.link-more:hover{color:var(--lime-600);}
.link-more i{font-size:12px;}

/* ---------- related cards ---------- */
.related-grid{margin-top:0;}
.related-grid .cell{display:flex;}
.card{
  display:flex;flex-direction:column;width:100%;
  background:var(--card);border:1px solid var(--line);
  border-radius:var(--radius-card);overflow:hidden;
  box-shadow:var(--shadow-card);
  transition:transform .18s ease,box-shadow .18s ease,border-color .18s ease;
}
.card:hover{transform:translateY(-3px);box-shadow:var(--shadow-hover);border-color:#D6D5CC;}
.card__media{position:relative;aspect-ratio:4/3;overflow:hidden;background:rgba(12,38,34,.06);}
.card__media img{width:100%;height:100%;object-fit:cover;transition:transform .35s ease;}
.card:hover .card__media img{transform:scale(1.03);}
.card__body{padding:20px 22px 22px;display:flex;flex-direction:column;flex:1 1 auto;}
.card__badge{
  align-self:flex-start;
  background:rgba(242,163,60,.16);color:#9A5B08;
  border:1px solid rgba(242,163,60,.36);
  padding:4px 11px;border-radius:999px;font-size:12px;font-weight:600;margin-bottom:12px;
}
.card__title{font-size:20px;font-weight:600;line-height:1.45;color:var(--ink-900);margin-bottom:10px;}
.card:hover .card__title{color:var(--ink-700);}
.card__desc{font-size:15px;color:var(--muted);line-height:1.7;margin-bottom:16px;}
.card__meta{margin-top:auto;display:flex;align-items:center;justify-content:space-between;font-size:13px;color:var(--muted);}
.card__meta i{margin-right:6px;}

/* ---------- CTA ---------- */
.cta-strip{
  background:var(--ink-900);color:#fff;
  padding:64px 0;position:relative;overflow:hidden;
}
.cta-strip::before{
  content:"";position:absolute;right:-120px;top:-120px;width:380px;height:380px;border-radius:50%;
  background:radial-gradient(circle,rgba(200,240,75,.22),rgba(200,240,75,0) 68%);
}
.cta-strip__inner{
  position:relative;z-index:2;
  display:flex;align-items:center;justify-content:space-between;gap:34px;flex-wrap:wrap;
}
.cta-strip h2{font-size:30px;font-weight:700;line-height:1.35;max-width:560px;}
.cta-strip p{margin-top:12px;font-size:16px;color:rgba(255,255,255,.72);max-width:560px;}
.cta-strip__actions{display:flex;gap:14px;flex-wrap:wrap;}

/* ---------- footer ---------- */
.site-footer{background:var(--ink-900);color:rgba(255,255,255,.72);padding:72px 0 0;margin-top:0;}
.footer-grid{
  display:grid;grid-template-columns:1.6fr 1fr 1fr 1.4fr;
  gap:48px;padding-bottom:56px;
}
.footer-brand .brand{margin-bottom:18px;}
.footer-brand p{font-size:14px;line-height:1.8;color:rgba(255,255,255,.6);max-width:330px;}
.footer-col h4{font-size:14px;font-weight:700;color:var(--lime-400);margin-bottom:18px;letter-spacing:.02em;}
.footer-col ul li{margin-bottom:12px;}
.footer-col ul a{font-size:14px;color:rgba(255,255,255,.7);}
.footer-col ul a:hover{color:var(--lime-400);}
.footer-sub p{font-size:14px;color:rgba(255,255,255,.6);margin-bottom:14px;line-height:1.7;}
.footer-sub form{display:flex;gap:10px;}
.footer-sub input{
  flex:1 1 auto;min-width:0;height:48px;border-radius:var(--radius-btn);
  border:1px solid rgba(255,255,255,.22);background:rgba(255,255,255,.06);
  color:#fff;padding:0 16px;font-size:14px;outline:none;
  transition:border-color .18s ease,box-shadow .18s ease,background-color .18s ease;
}
.footer-sub input::placeholder{color:rgba(255,255,255,.45);}
.footer-sub input:focus{border-color:var(--lime-600);background:rgba(255,255,255,.1);box-shadow:0 0 0 3px rgba(200,240,75,.25);}
.footer-sub button{
  height:48px;padding:0 22px;border-radius:var(--radius-btn);
  background:var(--lime-400);color:var(--ink-900);font-weight:700;font-size:15px;
  transition:background-color .18s ease,transform .18s ease;white-space:nowrap;
}
.footer-sub button:hover{background:var(--lime-600);transform:translateY(-1px);}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.12);
  padding:22px 0;display:flex;justify-content:space-between;gap:14px;flex-wrap:wrap;
  font-size:13px;color:rgba(255,255,255,.5);
}

/* ---------- responsive ---------- */
@media screen and (max-width:1200px){
  .nav__search{width:180px;}
  .page-hero h1{font-size:40px;}
}
@media screen and (max-width:1024px){
  .section{padding:72px 0;}
  .article-shell{padding:38px 34px;}
  .footer-grid{grid-template-columns:1.4fr 1fr 1fr;gap:38px;}
  .footer-sub{grid-column:1 / -1;}
}
@media screen and (max-width:900px){
  .nav{height:64px;padding:0 18px;gap:14px;}
  .nav__search{display:none;}
  .nav__channels{
    position:fixed;top:64px;left:0;right:0;bottom:0;
    background:var(--ink-900);
    flex-direction:column;align-items:stretch;gap:0;
    padding:6px 0 30px;overflow-y:auto;
    display:none;z-index:79;
  }
  .nav__channels.is-open{display:flex;}
  .nav__link{height:56px;padding:0 24px;font-size:16px;border-bottom:1px solid rgba(255,255,255,.08);}
  .nav__link::after{display:none;}
  .nav__link.is-active{background:rgba(200,240,75,.1);color:var(--lime-400);}
  .nav__burger{display:inline-flex;}
  .page-hero{padding:26px 0 46px;}
  .page-hero h1{font-size:32px;}
  .article-wrap{padding:44px 0 64px;}
  .section-head h2{font-size:26px;}
  .cta-strip h2{font-size:26px;}
}
@media screen and (max-width:768px){
  body{font-size:16px;}
  .container{padding:0 16px;}
  .section{padding:56px 0;}
  .article-shell{padding:26px 20px 24px;border-radius:14px;}
  .article-body{font-size:16px;line-height:1.78;}
  .article-body h2{font-size:24px;}
  .article-body h3{font-size:19px;}
  .crumb__now{max-width:100%;white-space:normal;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;padding-bottom:40px;}
  .footer-brand{grid-column:1 / -1;}
  .cta-strip__inner{flex-direction:column;align-items:flex-start;}
}
@media screen and (max-width:520px){
  .brand__main{font-size:15px;}
  .brand__sub{font-size:9px;letter-spacing:.16em;}
  .nav__entry{display:none;}
  .nav__tools .btn-lime{padding:0 14px;font-size:13px;height:38px;}
  .page-hero h1{font-size:27px;}
  .article-meta{font-size:13px;gap:8px 14px;}
  .meta-divider{display:none;}
  .article-shell__foot{flex-direction:column;align-items:flex-start;}
  .footer-grid{grid-template-columns:1fr;}
  .footer-sub form{flex-direction:column;}
  .footer-sub button{width:100%;}
  .footer-bottom{flex-direction:column;}
  .btn-lime,.btn-ghost,.btn-ghost-dark{width:100%;}
  .cta-strip__actions{width:100%;}
}

/* roulang page: category1 */
:root{
  --ink-900:#0C2622;
  --ink-700:#14403A;
  --lime-400:#C8F04B;
  --lime-600:#9ACB1E;
  --amber-500:#F2A33C;
  --paper:#F7F6F1;
  --card:#FFFFFF;
  --line:#E3E2DA;
  --text:#1E2B28;
  --muted:#63736E;
  --r-card:16px;
  --r-img:12px;
  --r-btn:10px;
  --shadow-1:0 1px 2px rgba(12,38,34,.05),0 8px 24px rgba(12,38,34,.06);
  --shadow-2:0 12px 32px rgba(12,38,34,.12);
  --sec-y:96px;
  --nav-h:68px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  background:var(--paper);
  color:var(--text);
  font-family:"Noto Sans SC","PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,-apple-system,"Helvetica Neue",Arial,sans-serif;
  font-size:16px;
  line-height:1.75;
  font-weight:400;
  -webkit-font-smoothing:antialiased;
}
img{display:block;max-width:100%;height:auto}
a{color:var(--ink-700);text-decoration:none;transition:color .18s ease,background-color .18s ease,transform .18s ease}
a:hover{color:var(--lime-600)}
ul,ol{margin:0;padding:0;list-style:none}
p{margin:0 0 1.1em}
p:last-child{margin-bottom:0}
h1,h2,h3,h4{margin:0;font-weight:700;line-height:1.3;color:var(--ink-900)}
button{font:inherit;cursor:pointer;border:0;background:none;color:inherit}
input{font:inherit}
:focus-visible{outline:3px solid rgba(200,240,75,.5);outline-offset:2px;border-radius:6px}
.num{font-variant-numeric:tabular-nums;font-feature-settings:"tnum" 1}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px}
.section{padding:var(--sec-y) 0}
.section--tight{padding:64px 0}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:34px;flex-wrap:wrap}
.section-head h2{font-size:32px;letter-spacing:-.01em}
.section-head p{margin:8px 0 0;color:var(--muted);font-size:15px;max-width:640px}
.link-more{font-size:14px;font-weight:700;color:var(--ink-700);display:inline-flex;align-items:center;gap:8px}
.link-more i{font-size:12px;transition:transform .18s ease}
.link-more:hover i{transform:translateX(4px)}

/* ---------- buttons ---------- */
.btn-lime,.btn-primary,.btn-ghost{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 24px;border-radius:var(--r-btn);
  font-weight:700;font-size:15px;white-space:nowrap;
  transition:background-color .18s ease,transform .18s ease,color .18s ease,border-color .18s ease;
}
.btn-primary,.btn-lime{background:var(--lime-400);color:var(--ink-900)}
.btn-primary:hover,.btn-lime:hover{background:var(--lime-600);color:var(--ink-900);transform:translateY(-1px)}
.btn-primary:active,.btn-lime:active{transform:translateY(0)}
.btn-ghost{background:transparent;border:1.5px solid var(--ink-700);color:var(--ink-900)}
.btn-ghost:hover{background:rgba(12,38,34,.06);color:var(--ink-900)}
.btn-sm{height:40px;padding:0 18px;font-size:14px}

/* ---------- badges ---------- */
.badge{display:inline-flex;align-items:center;gap:6px;height:26px;padding:0 12px;border-radius:999px;font-size:13px;font-weight:600;letter-spacing:.01em}
.badge--amber{background:rgba(242,163,60,.18);color:#8A5310}
.badge--lime{background:rgba(200,240,75,.32);color:#3E5410}
.badge--dark{background:var(--ink-900);color:var(--lime-400)}
.tagline{display:inline-flex;align-items:center;gap:8px;font-size:13px;font-weight:700;letter-spacing:.06em;color:var(--ink-700);text-transform:uppercase}
.tagline::before{content:"";width:22px;height:2px;background:var(--lime-400);display:inline-block}

/* ---------- nav ---------- */
.nav{
  position:sticky;top:0;z-index:60;
  min-height:var(--nav-h);
  display:flex;align-items:center;gap:28px;
  background:var(--ink-900);color:#fff;
  padding:0 max(24px,calc((100vw - 1200px)/2));
  transition:box-shadow .2s ease,border-color .2s ease;
  border-bottom:1px solid transparent;
}
.nav.is-scrolled{border-bottom-color:var(--lime-400);box-shadow:0 10px 30px rgba(12,38,34,.22)}
.brand{display:inline-flex;align-items:center;gap:10px;color:#fff}
.brand:hover{color:#fff}
.brand__mark{
  width:20px;height:20px;flex:0 0 20px;display:inline-flex;align-items:center;justify-content:center;
  border-radius:6px;background:var(--lime-400);color:var(--ink-900);font-size:11px;
}
.brand__text{display:flex;flex-direction:column;line-height:1.15}
.brand__main{font-size:17px;font-weight:800;letter-spacing:-.01em;color:#fff}
.brand__sub{font-size:10px;letter-spacing:.18em;color:var(--lime-400);font-weight:600}
.nav__channels{display:flex;align-items:center;gap:26px}
.nav__link{
  position:relative;display:inline-block;padding:22px 0;font-size:15px;font-weight:500;color:#D7E2DE;
}
.nav__link::after{content:"";position:absolute;left:0;right:0;bottom:14px;height:3px;border-radius:2px;background:var(--lime-400);transform:scaleX(0);transform-origin:left;transition:transform .2s ease}
.nav__link:hover{color:#fff}
.nav__link:hover::after,.nav__link.is-active::after{transform:scaleX(1)}
.nav__link.is-active{color:#fff;font-weight:700}
.nav__tools{margin-left:auto;display:flex;align-items:center;gap:14px}
.nav__search{position:relative;display:flex;align-items:center}
.nav__search i{position:absolute;left:14px;font-size:13px;color:#93A6A1}
.nav__search input{
  width:210px;height:40px;border-radius:999px;border:1px solid rgba(255,255,255,.16);
  background:rgba(255,255,255,.07);color:#fff;padding:0 16px 0 36px;font-size:14px;
}
.nav__search input::placeholder{color:#8FA39E}
.nav__search input:focus{outline:3px solid rgba(200,240,75,.35);outline-offset:0;border-color:var(--lime-600);background:rgba(255,255,255,.12)}
.nav__entry{font-size:14px;font-weight:600;color:#D7E2DE;padding:8px 4px}
.nav__entry:hover{color:var(--lime-400)}
.nav__burger{display:none;width:40px;height:40px;border-radius:10px;background:rgba(255,255,255,.08);color:#fff;font-size:16px}
.nav__burger:hover{background:rgba(255,255,255,.16)}

/* ---------- breadcrumb ---------- */
.crumb{padding:20px 0 0;font-size:13px;color:var(--muted)}
.crumb ol{display:flex;flex-wrap:wrap;align-items:center;gap:8px}
.crumb li{display:flex;align-items:center;gap:8px}
.crumb li+li::before{content:"/";color:#B9C2BE}
.crumb a{color:var(--muted)}
.crumb a:hover{color:var(--lime-600)}
.crumb [aria-current]{color:var(--ink-900);font-weight:600}

/* ---------- layout ---------- */
.layout{display:grid;grid-template-columns:260px minmax(0,1fr);gap:36px;padding:28px 0 0}
.side-card{
  position:sticky;top:calc(var(--nav-h) + 20px);
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);
  padding:22px 18px;box-shadow:var(--shadow-1);
}
.side-card+.side-card{margin-top:20px}
.side-card h2{font-size:15px;font-weight:800;letter-spacing:.02em;margin-bottom:14px}
.side-card h2 span{display:block;font-size:12px;font-weight:500;color:var(--muted);letter-spacing:0;margin-top:4px}
.side-list li+li{margin-top:4px}
.side-list a{
  display:block;padding:10px 12px;border-radius:10px;font-size:14.5px;color:var(--ink-700);
  transition:background-color .18s ease,transform .18s ease,color .18s ease;
}
.side-list a:hover{background:rgba(200,240,75,.22);color:var(--ink-900);transform:translateX(3px)}
.side-list a i{font-size:11px;color:var(--lime-600);margin-right:8px}
.side-note{margin-top:16px;padding-top:16px;border-top:1px solid var(--line);font-size:13px;color:var(--muted);line-height:1.7}
.side-cta{display:flex;flex-direction:column;gap:10px;margin-top:16px}
.side-cta .btn-primary,.side-cta .btn-ghost{height:42px;font-size:14px;width:100%}

/* ---------- page hero ---------- */
.page-hero{
  background:var(--card);border:1px solid var(--line);border-radius:20px;
  padding:34px;box-shadow:var(--shadow-1);
}
.page-hero h1{font-size:44px;font-weight:800;letter-spacing:-.01em;line-height:1.2;margin:14px 0 16px}
.page-hero__lead{font-size:17px;color:var(--muted);max-width:620px}
.page-hero__actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:24px}
.page-hero__media{position:relative;border-radius:var(--r-img);overflow:hidden}
.page-hero__media img{width:100%;aspect-ratio:4/3;object-fit:cover;border-radius:var(--r-img);transition:transform .5s ease}
.page-hero__media:hover img{transform:scale(1.03)}
.page-hero__media .badge{position:absolute;left:14px;top:14px}
.metrics{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px;margin-top:30px}
.metric{
  background:var(--ink-900);border-radius:14px;padding:16px 18px;color:#fff;
}
.metric__num{font-size:24px;font-weight:800;color:var(--lime-400);line-height:1.2}
.metric__label{font-size:13px;color:#A9BCB7;margin-top:4px}

/* ---------- entry cards ---------- */
.entry-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:20px}
.entry-card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);
  padding:22px;box-shadow:var(--shadow-1);display:flex;flex-direction:column;gap:12px;
  transition:transform .18s ease,box-shadow .18s ease,border-color .18s ease;
}
.entry-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-2);border-color:#D6D9CE}
.entry-card:hover h3{color:var(--ink-700)}
.entry-card h3{font-size:20px;font-weight:600;transition:color .18s ease}
.entry-card p{font-size:15px;color:var(--muted);margin:0}
.entry-card__top{display:flex;align-items:center;gap:10px}
.entry-card__icon{
  width:38px;height:38px;border-radius:11px;background:rgba(200,240,75,.28);color:var(--ink-900);
  display:inline-flex;align-items:center;justify-content:center;font-size:15px;flex:0 0 38px;
}
.entry-card__focus{font-size:13px;color:var(--muted);border-top:1px solid var(--line);padding-top:12px}
.entry-card__focus strong{color:var(--ink-700);font-weight:700}

/* ---------- steps ---------- */
.steps{display:grid;gap:14px}
.step{
  display:grid;grid-template-columns:64px minmax(0,1fr);gap:20px;align-items:start;
  background:var(--card);border:1px solid var(--line);border-radius:14px;padding:20px;
  transition:transform .18s ease,background-color .18s ease,box-shadow .18s ease;
}
.step:hover{transform:translateX(4px);background:rgba(200,240,75,.08)}
.step__num{
  width:52px;height:52px;border-radius:12px;background:var(--lime-400);color:var(--ink-900);
  display:flex;align-items:center;justify-content:center;font-size:20px;font-weight:800;
}
.step h3{font-size:19px;font-weight:600;margin-bottom:6px}
.step p{font-size:15px;color:var(--muted);margin:0}

/* ---------- check rows ---------- */
.check-list{border:1px solid var(--line);border-radius:var(--r-card);overflow:hidden;background:var(--card)}
.check-row{
  display:grid;grid-template-columns:180px minmax(0,1fr) 130px;gap:20px;align-items:center;
  padding:18px 22px;border-bottom:1px solid var(--line);
  transition:background-color .18s ease;
}
.check-row:last-child{border-bottom:0}
.check-row:hover{background:rgba(200,240,75,.1)}
.check-row__k{font-size:15px;font-weight:700;color:var(--ink-900)}
.check-row__v{font-size:15px;color:var(--muted)}

/* ---------- faq ---------- */
.faq{display:grid;gap:12px}
.faq__item{
  background:var(--card);border:1px solid var(--line);border-left:4px solid transparent;
  border-radius:12px;overflow:hidden;transition:border-color .2s ease,box-shadow .2s ease;
}
.faq__item.is-open{border-left-color:var(--lime-400);box-shadow:var(--shadow-1)}
.faq__q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:18px;
  padding:18px 22px;text-align:left;font-size:17px;font-weight:600;color:var(--ink-900);
}
.faq__q:hover{color:var(--ink-700)}
.faq__q i{font-size:13px;color:var(--lime-600);transition:transform .22s ease;flex:0 0 auto}
.faq__item.is-open .faq__q i{transform:rotate(45deg)}
.faq__a{max-height:0;overflow:hidden;transition:max-height .28s ease}
.faq__a p{padding:0 22px 20px;font-size:16px;color:var(--muted);line-height:1.75}

/* ---------- cta band ---------- */
.cta-band{
  background:var(--ink-900);border-radius:20px;padding:44px;
  display:grid;grid-template-columns:minmax(0,1fr) auto;gap:28px;align-items:center;
}
.cta-band h2{color:#fff;font-size:30px;letter-spacing:-.01em}
.cta-band p{color:#A9BCB7;margin-top:12px;font-size:16px;max-width:560px}
.cta-band__actions{display:flex;gap:12px;flex-wrap:wrap}
.cta-band .btn-primary:hover{background:var(--lime-600)}

/* ---------- footer ---------- */
.site-footer{background:var(--ink-900);color:#C9D6D1;margin-top:var(--sec-y);padding:64px 0 26px}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.3fr;gap:36px}
.footer-brand p{margin:16px 0 0;font-size:14px;line-height:1.8;color:#9CADA8;max-width:330px}
.footer-col h4{color:var(--lime-400);font-size:14px;font-weight:700;margin-bottom:16px;letter-spacing:.02em}
.footer-col ul li+li{margin-top:10px}
.footer-col a{color:#C9D6D1;font-size:14px}
.footer-col a:hover{color:var(--lime-400)}
.footer-sub p{font-size:14px;color:#9CADA8}
.footer-sub form{display:flex;gap:10px;margin-top:14px}
.footer-sub input{
  flex:1 1 auto;min-width:0;height:46px;border-radius:10px;border:1px solid rgba(255,255,255,.18);
  background:rgba(255,255,255,.07);color:#fff;padding:0 14px;font-size:14px;
}
.footer-sub input::placeholder{color:#8FA39E}
.footer-sub input:focus{outline:3px solid rgba(200,240,75,.35);outline-offset:0;border-color:var(--lime-600)}
.footer-sub button{
  height:46px;padding:0 20px;border-radius:10px;background:var(--lime-400);color:var(--ink-900);
  font-weight:700;font-size:14px;transition:background-color .18s ease,transform .18s ease;
}
.footer-sub button:hover{background:var(--lime-600);transform:translateY(-1px)}
.footer-bottom{
  margin-top:40px;padding-top:18px;border-top:1px solid rgba(255,255,255,.12);
  display:flex;justify-content:space-between;gap:14px;flex-wrap:wrap;font-size:13px;color:#8FA39E;
}

/* ---------- responsive ---------- */
@media (max-width:1199px){
  .page-hero h1{font-size:40px}
  .nav__search input{width:170px}
}
@media (max-width:1023px){
  :root{--sec-y:72px}
  .layout{grid-template-columns:minmax(0,1fr)}
  .side-card{position:static}
  .side-nav-wrap{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:20px}
  .side-card+.side-card{margin-top:0}
  .footer-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:32px}
  .cta-band{grid-template-columns:minmax(0,1fr);padding:36px}
  .check-row{grid-template-columns:150px minmax(0,1fr);gap:14px}
  .check-row__k2{grid-column:2}
}
@media (max-width:899px){
  .nav{flex-wrap:wrap;gap:16px;padding:0 20px}
  .nav__channels{
    position:fixed;left:0;right:0;top:var(--nav-h);z-index:59;
    flex-direction:column;align-items:stretch;gap:0;
    background:var(--ink-900);padding:8px 20px 20px;
    border-bottom:1px solid rgba(200,240,75,.35);
    opacity:0;visibility:hidden;transform:translateY(-10px);
    transition:opacity .22s ease,transform .22s ease,visibility .22s ease;
    max-height:calc(100vh - var(--nav-h));overflow-y:auto;
  }
  body.nav-open .nav__channels{opacity:1;visibility:visible;transform:translateY(0)}
  .nav__link{display:block;line-height:56px;padding:0;font-size:16px;border-bottom:1px solid rgba(255,255,255,.08)}
  .nav__link::after{display:none}
  .nav__link.is-active{color:var(--lime-400)}
  .nav__burger{display:inline-flex;align-items:center;justify-content:center}
  .nav__search{display:none}
  .nav__entry{display:none}
  .page-hero{padding:26px}
  .page-hero h1{font-size:34px}
  .entry-grid{grid-template-columns:minmax(0,1fr)}
}
@media (max-width:639px){
  :root{--sec-y:56px;--nav-h:62px}
  .container{padding:0 16px}
  .nav{padding:0 16px}
  .brand__main{font-size:15px}
  .brand__sub{font-size:9px;letter-spacing:.12em}
  .page-hero h1{font-size:30px}
  .section-head h2{font-size:24px}
  .metrics{grid-template-columns:minmax(0,1fr);gap:12px}
  .step{grid-template-columns:48px minmax(0,1fr);gap:14px;padding:16px}
  .step__num{width:44px;height:44px;font-size:17px}
  .check-row{grid-template-columns:minmax(0,1fr);gap:6px;padding:16px 18px}
  .faq__q{font-size:16px;padding:16px 18px}
  .faq__a p{padding:0 18px 18px;font-size:15px}
  .footer-grid{grid-template-columns:minmax(0,1fr)}
  .footer-sub form{flex-direction:column}
  .footer-sub button{width:100%}
  .cta-band{padding:28px 22px}
  .cta-band h2{font-size:24px}
  .cta-band__actions .btn-primary,.cta-band__actions .btn-ghost{width:100%}
  .side-nav-wrap{grid-template-columns:minmax(0,1fr)}
  .page-hero__actions .btn-primary,.page-hero__actions .btn-ghost{width:100%}
}

/* roulang page: category2 */
:root{
  --ink-900:#0C2622;
  --ink-700:#14403A;
  --lime-400:#C8F04B;
  --lime-600:#9ACB1E;
  --amber-500:#F2A33C;
  --paper:#F7F6F1;
  --card:#FFFFFF;
  --line:#E3E2DA;
  --text:#1E2B28;
  --muted:#63736E;
  --radius-card:16px;
  --radius-img:12px;
  --radius-btn:10px;
  --shadow-card:0 1px 2px rgba(12,38,34,.05),0 8px 24px rgba(12,38,34,.06);
  --shadow-hover:0 12px 32px rgba(12,38,34,.12);
  --container:1200px;
  --nav-h:68px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  background:var(--paper);
  color:var(--text);
  font-family:"Noto Sans SC","PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:17px;
  line-height:1.75;
  font-weight:400;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;height:auto;display:block;border-style:none}
a{color:var(--ink-700);text-decoration:none;transition:color .18s ease,background-color .18s ease,border-color .18s ease}
a:hover{color:var(--lime-600)}
button{font-family:inherit}
h1,h2,h3,h4{margin:0;color:var(--ink-900);font-weight:700;line-height:1.28}
h1{font-weight:800;letter-spacing:-.01em}
p{margin:0 0 1.1em}
ul{margin:0;padding:0;list-style:none}
input,button,textarea,select{font-family:inherit;font-size:inherit}
a:focus-visible,button:focus-visible,input:focus-visible,textarea:focus-visible,[tabindex]:focus-visible{
  outline:3px solid rgba(200,240,75,.45);
  outline-offset:2px;
}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 24px}
.num{font-variant-numeric:tabular-nums}
::selection{background:rgba(200,240,75,.55);color:var(--ink-900)}

/* ---------- header / nav ---------- */
.site-header{
  position:sticky;top:0;z-index:90;
  background:var(--ink-900);
  border-bottom:1px solid transparent;
  transition:border-color .2s ease;
}
.site-header.is-scrolled{border-bottom-color:var(--lime-400)}
.nav{
  width:100%;max-width:var(--container);margin:0 auto;
  height:var(--nav-h);padding:0 24px;
  display:flex;align-items:center;gap:20px;
}
.brand{display:inline-flex;align-items:center;gap:10px;color:#fff;flex:0 0 auto}
.brand:hover{color:#fff}
.brand__mark{
  width:20px;height:20px;border-radius:6px;background:var(--lime-400);color:var(--ink-900);
  display:inline-flex;align-items:center;justify-content:center;font-size:10px;flex:0 0 auto;
}
.brand__text{display:flex;flex-direction:column;line-height:1.15}
.brand__main{font-size:15px;font-weight:800;letter-spacing:-.01em;color:#fff;white-space:nowrap}
.brand__sub{font-size:9px;letter-spacing:.18em;color:var(--lime-400);font-weight:700}
.nav__channels{display:flex;align-items:center;gap:2px;margin:0}
.nav__link{
  position:relative;display:inline-flex;align-items:center;
  height:var(--nav-h);padding:0 12px;
  color:rgba(255,255,255,.76);font-size:15px;font-weight:500;white-space:nowrap;
}
.nav__link:hover{color:#fff}
.nav__link.is-active{color:#fff;font-weight:600}
.nav__link.is-active::after{
  content:"";position:absolute;left:12px;right:12px;bottom:14px;height:3px;
  background:var(--lime-400);border-radius:2px;
}
.nav__tools{margin-left:auto;display:flex;align-items:center;gap:12px}
.nav__search{
  display:flex;align-items:center;gap:8px;height:40px;padding:0 16px;
  border-radius:999px;background:rgba(255,255,255,.08);
  border:1px solid rgba(255,255,255,.14);
}
.nav__search i{color:rgba(255,255,255,.55);font-size:13px}
.nav__search input{
  background:transparent;border:0;outline:none;color:#fff;
  font-size:14px;width:168px;line-height:1;
}
.nav__search input::placeholder{color:rgba(255,255,255,.45)}
.nav__entry{
  display:inline-flex;align-items:center;height:40px;padding:0 10px;
  color:rgba(255,255,255,.85);font-size:14px;font-weight:500;
}
.nav__entry:hover{color:var(--lime-400)}
.btn-lime{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:40px;padding:0 18px;border-radius:var(--radius-btn);
  background:var(--lime-400);color:var(--ink-900);
  font-size:14px;font-weight:700;border:0;cursor:pointer;
  transition:background-color .18s ease,transform .18s ease,box-shadow .18s ease;
}
.btn-lime:hover{background:var(--lime-600);color:var(--ink-900);transform:translateY(-1px)}
.btn-lime:active{transform:translateY(0)}
.btn-lime--lg{height:48px;padding:0 26px;font-size:15px}
.nav__burger{
  display:none;width:40px;height:40px;border-radius:10px;
  background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.14);
  color:#fff;font-size:16px;cursor:pointer;align-items:center;justify-content:center;
}
.nav__burger:hover{background:rgba(255,255,255,.16)}

/* ---------- page banner ---------- */
.page-banner{
  position:relative;
  background-color:var(--ink-900);
  background-image:linear-gradient(100deg,rgba(12,38,34,.92) 0%,rgba(12,38,34,.78) 55%,rgba(12,38,34,.66) 100%),url('/assets/images/coverpic/cover-3.webp');
  background-size:cover;background-position:center;
  color:#fff;padding:60px 0 64px;min-height:280px;
  display:flex;align-items:center;
}
.breadcrumb{font-size:13px;color:rgba(255,255,255,.66);margin-bottom:18px}
.breadcrumb a{color:rgba(255,255,255,.66)}
.breadcrumb a:hover{color:var(--lime-400)}
.breadcrumb .sep{margin:0 8px;opacity:.5}
.page-banner .badge-amber{margin-bottom:16px}
.badge-amber{
  display:inline-flex;align-items:center;gap:7px;height:28px;padding:0 12px;
  border-radius:999px;background:rgba(242,163,60,.14);color:#E08C1C;
  border:1px solid rgba(242,163,60,.35);
  font-size:13px;font-weight:600;
}
.page-banner .badge-amber{background:rgba(242,163,60,.18);color:#F2A33C}
.badge-amber i{font-size:11px}
.banner-title{color:#fff;font-size:clamp(30px,4.2vw,48px);line-height:1.2;margin:0;max-width:900px}
.banner-desc{color:rgba(255,255,255,.82);font-size:17px;line-height:1.75;max-width:660px;margin:16px 0 0}

/* ---------- sections ---------- */
.section{padding:88px 0}
.section--tight{padding:72px 0}
.section--paper{background:var(--paper)}
.section--card{background:var(--card)}
.section--dark{
  background-color:var(--ink-900);
  background-image:linear-gradient(rgba(12,38,34,.94),rgba(12,38,34,.94)),url('/assets/images/backpic/back-2.webp');
  background-size:cover;background-position:center;color:#fff;
}
.section--dark h2,.section--dark h3{color:#fff}
.section-head{max-width:760px;margin-bottom:40px}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;font-weight:700;letter-spacing:.06em;
  color:var(--lime-600);text-transform:uppercase;margin-bottom:12px;
}
.section--dark .eyebrow{color:var(--lime-400)}
.eyebrow::before{content:"";width:22px;height:2px;background:var(--lime-400);border-radius:2px}
.section-head h2{font-size:clamp(24px,2.6vw,32px);margin-bottom:12px}
.section-head p{color:var(--muted);font-size:16px;margin:0;line-height:1.78}
.section--dark .section-head p{color:rgba(255,255,255,.72)}

/* ---------- card grid ---------- */
.card-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px}
.media-card{
  display:flex;flex-direction:column;background:var(--card);
  border:1px solid var(--line);border-radius:var(--radius-card);
  overflow:hidden;box-shadow:var(--shadow-card);
  transition:transform .18s ease,box-shadow .18s ease;
}
.media-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-hover)}
.media-card__thumb{position:relative;aspect-ratio:4/3;overflow:hidden;background:var(--paper)}
.media-card__thumb img{width:100%;height:100%;object-fit:cover;transition:transform .35s ease}
.media-card:hover .media-card__thumb img{transform:scale(1.03)}
.media-card__thumb .tag-float{
  position:absolute;left:12px;top:12px;
  display:inline-flex;align-items:center;gap:6px;height:26px;padding:0 10px;
  border-radius:999px;background:rgba(242,163,60,.92);color:var(--ink-900);
  font-size:12px;font-weight:700;
}
.media-card__body{padding:22px;display:flex;flex-direction:column;gap:10px;flex:1}
.media-card__body h3{font-size:20px;font-weight:600}
.media-card__body p{margin:0;color:var(--muted);font-size:15px;line-height:1.75}
.card-list{margin:0;display:flex;flex-direction:column;gap:8px}
.card-list li{position:relative;padding-left:18px;color:var(--muted);font-size:15px;line-height:1.7}
.card-list li::before{
  content:"";position:absolute;left:0;top:11px;width:6px;height:6px;
  border-radius:50%;background:var(--lime-600);
}
.media-card__foot{margin-top:auto;padding-top:6px;font-size:13px;color:var(--muted)}

/* ---------- steps (foundation grid) ---------- */
.steps{padding-top:4px}
.step{
  background:var(--card);border:1px solid var(--line);border-radius:var(--radius-card);
  padding:24px;height:100%;box-shadow:var(--shadow-card);
  transition:transform .18s ease,box-shadow .18s ease;
}
.step:hover{transform:translateY(-3px);box-shadow:var(--shadow-hover)}
.step__num{
  display:inline-flex;align-items:center;justify-content:center;
  width:40px;height:40px;border-radius:10px;background:var(--lime-400);
  color:var(--ink-900);font-weight:800;font-size:15px;
  font-variant-numeric:tabular-nums;margin-bottom:16px;
}
.step h3{font-size:19px;margin-bottom:8px}
.step p{margin:0;color:var(--muted);font-size:15px;line-height:1.75}

/* ---------- metrics ---------- */
.metrics{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:20px}
.metric{
  background:rgba(255,255,255,.05);border:1px solid rgba(255,255,255,.14);
  border-radius:var(--radius-card);padding:24px;
  transition:border-color .18s ease,transform .18s ease,background-color .18s ease;
}
.metric:hover{border-color:rgba(200,240,75,.5);transform:translateY(-3px);background:rgba(255,255,255,.08)}
.metric__value{
  font-size:32px;font-weight:800;color:var(--lime-400);line-height:1.1;
  font-variant-numeric:tabular-nums;display:flex;align-items:baseline;gap:6px;
}
.metric__value small{font-size:14px;font-weight:600;color:rgba(255,255,255,.7)}
.metric__label{margin-top:10px;font-size:15px;font-weight:600;color:#fff}
.metric__desc{margin-top:8px;font-size:14px;line-height:1.7;color:rgba(255,255,255,.62)}

/* ---------- scene list ---------- */
.scene-list{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:0 44px}
.scene-item{
  display:flex;gap:16px;padding:22px 16px 22px 12px;border-bottom:1px solid var(--line);
  transition:transform .18s ease,background-color .18s ease;
}
.scene-item:hover{transform:translateX(4px);background-color:rgba(200,240,75,.08)}
.scene-item i{color:var(--lime-600);font-size:18px;margin-top:5px;flex:0 0 auto}
.scene-item h3{font-size:18px;margin-bottom:6px}
.scene-item p{margin:0;color:var(--muted);font-size:15px;line-height:1.72}

/* ---------- faq ---------- */
.faq{max-width:860px;margin:0 auto}
.faq-item{
  position:relative;background:var(--card);border:1px solid var(--line);
  border-radius:var(--radius-img);margin-bottom:12px;overflow:hidden;
  transition:border-color .18s ease,box-shadow .18s ease;
}
.faq-item:hover{border-color:#CFD5CB}
.faq-item.is-open{box-shadow:var(--shadow-card)}
.faq-item::before{
  content:"";position:absolute;left:0;top:0;bottom:0;width:4px;
  background:var(--lime-400);opacity:0;transition:opacity .2s ease;
}
.faq-item.is-open::before{opacity:1}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:20px 22px;background:none;border:0;cursor:pointer;text-align:left;
  font-size:17px;font-weight:600;color:var(--ink-900);line-height:1.6;
}
.faq-q:hover{color:var(--ink-700)}
.faq-q i{color:var(--muted);font-size:14px;transition:transform .22s ease;flex:0 0 auto}
.faq-item.is-open .faq-q i{transform:rotate(45deg);color:var(--lime-600)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .28s ease,padding .28s ease;padding:0 22px}
.faq-item.is-open .faq-a{max-height:420px;padding-bottom:20px}
.faq-a p{margin:0;color:var(--muted);font-size:16px;line-height:1.78}

/* ---------- cta ---------- */
.cta{
  background:var(--ink-900);border-radius:20px;padding:48px;
  display:flex;align-items:center;justify-content:space-between;gap:36px;
  box-shadow:var(--shadow-card);
}
.cta__text{max-width:640px}
.cta h2{color:#fff;font-size:clamp(24px,2.6vw,32px);margin-bottom:12px}
.cta p{color:rgba(255,255,255,.74);margin:0;font-size:16px;line-height:1.75}
.cta__actions{display:flex;flex-direction:column;align-items:flex-start;gap:14px;flex:0 0 auto}
.cta__link{color:var(--lime-400);font-size:14px;font-weight:600}
.cta__link:hover{color:var(--lime-600)}

/* ---------- footer ---------- */
.site-footer{background:var(--ink-900);color:rgba(255,255,255,.66);padding:64px 0 0;margin-top:0}
.footer-grid{
  display:grid;grid-template-columns:1.7fr 1fr 1fr 1.5fr;gap:40px;
  padding-bottom:48px;
}
.footer-brand .brand{margin-bottom:18px}
.footer-brand p{font-size:14px;line-height:1.8;margin:0;max-width:340px;color:rgba(255,255,255,.62)}
.footer-col h4{
  color:var(--lime-400);font-size:14px;font-weight:700;margin:0 0 16px;letter-spacing:.02em;
}
.footer-col ul{display:flex;flex-direction:column;gap:10px}
.footer-col ul a{color:rgba(255,255,255,.68);font-size:14px}
.footer-col ul a:hover{color:var(--lime-400)}
.footer-sub p{font-size:14px;line-height:1.7;color:rgba(255,255,255,.62);margin:0}
.footer-sub form{display:flex;gap:10px;margin-top:14px}
.footer-sub input{
  flex:1;min-width:0;height:44px;padding:0 14px;border-radius:var(--radius-btn);
  border:1px solid rgba(255,255,255,.18);background:rgba(255,255,255,.06);
  color:#fff;font-size:14px;outline:none;
  transition:border-color .18s ease,box-shadow .18s ease;
}
.footer-sub input::placeholder{color:rgba(255,255,255,.42)}
.footer-sub input:focus{border-color:var(--lime-600);box-shadow:0 0 0 3px rgba(200,240,75,.22)}
.footer-sub button{
  height:44px;padding:0 20px;border-radius:var(--radius-btn);border:0;
  background:var(--lime-400);color:var(--ink-900);font-weight:700;font-size:14px;
  cursor:pointer;transition:background-color .18s ease,transform .18s ease;
}
.footer-sub button:hover{background:var(--lime-600);transform:translateY(-1px)}
.footer-bottom{
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  padding:20px 0;border-top:1px solid rgba(255,255,255,.12);
  font-size:13px;color:rgba(255,255,255,.5);
}

/* ---------- responsive ---------- */
@media screen and (max-width:1199px){
  .nav__search input{width:130px}
}
@media screen and (max-width:1024px){
  .card-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .metrics{grid-template-columns:repeat(2,minmax(0,1fr))}
  .footer-grid{grid-template-columns:1.6fr 1fr 1.4fr;row-gap:36px}
}
@media screen and (max-width:900px){
  .nav{gap:12px;padding:0 16px}
  .nav__channels{
    position:fixed;top:var(--nav-h);left:0;right:0;z-index:88;
    display:none;flex-direction:column;align-items:stretch;gap:0;
    background:var(--ink-900);padding:8px 16px 20px;
    border-top:1px solid rgba(255,255,255,.1);
    box-shadow:0 20px 40px rgba(0,0,0,.28);
    max-height:calc(100vh - var(--nav-h));overflow-y:auto;
  }
  .nav__channels.is-open{display:flex}
  .nav__link{height:56px;width:100%;font-size:16px;color:#fff;padding:0 4px}
  .nav__link.is-active::after{
    left:0;right:auto;bottom:auto;top:50%;transform:translateY(-50%);
    width:3px;height:22px;
  }
  .nav__search{display:none}
  .nav__entry{display:none}
  .nav__burger{display:inline-flex}
  .scene-list{grid-template-columns:1fr;gap:0}
  .cta{flex-direction:column;align-items:flex-start;padding:36px}
  .section{padding:64px 0}
  .section--tight{padding:56px 0}
  .page-banner{padding:44px 0 48px}
}
@media screen and (max-width:640px){
  body{font-size:16px}
  .container{padding:0 16px}
  .nav{padding:0 16px}
  .brand__main{font-size:15px}
  .brand__sub{font-size:8px;letter-spacing:.14em}
  .nav__tools{gap:8px}
  .btn-lime{height:38px;padding:0 14px;font-size:13px}
  .nav__burger{width:38px;height:38px}
  .page-banner{min-height:220px;padding:36px 0 40px}
  .banner-desc{font-size:15px}
  .card-grid{grid-template-columns:1fr}
  .metrics{grid-template-columns:1fr;}
  .section{padding:56px 0}
  .section-head{margin-bottom:28px}
  .footer-grid{grid-template-columns:1fr;gap:32px;padding-bottom:36px}
  .footer-sub form{flex-direction:column}
  .footer-sub button{width:100%}
  .footer-bottom{flex-direction:column;align-items:flex-start;gap:8px}
  .cta{padding:28px 22px;border-radius:16px}
  .cta__actions{width:100%}
  .cta__actions .btn-lime{width:100%}
  .media-card__body{padding:18px}
}

/* roulang page: category3 */
:root{
  --ink-900:#0C2622;
  --ink-700:#14403A;
  --lime-400:#C8F04B;
  --lime-600:#9ACB1E;
  --amber-500:#F2A33C;
  --paper:#F7F6F1;
  --card:#FFFFFF;
  --line:#E3E2DA;
  --text:#1E2B28;
  --muted:#63736E;

  --radius-card:16px;
  --radius-img:12px;
  --radius-btn:10px;
  --radius-pill:999px;

  --shadow-card:0 1px 2px rgba(12,38,34,.05), 0 8px 24px rgba(12,38,34,.06);
  --shadow-hover:0 12px 32px rgba(12,38,34,.12);

  --container:1200px;
  --space-section:96px;
  --font-sans:"Noto Sans SC","PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC",system-ui,-apple-system,"Segoe UI",sans-serif;
}

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

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

body{
  margin:0;
  background:var(--paper);
  color:var(--text);
  font-family:var(--font-sans);
  font-size:16px;
  line-height:1.75;
  font-weight:400;
  -webkit-font-smoothing:antialiased;
}

img{max-width:100%;height:auto;display:block;}

a{color:var(--ink-700);text-decoration:none;transition:color .18s ease,background-color .18s ease,border-color .18s ease;}
a:hover{color:var(--lime-600);}

ul,ol{margin:0;padding:0;list-style:none;}

h1,h2,h3,h4{margin:0;color:var(--ink-900);font-weight:700;line-height:1.25;letter-spacing:-0.01em;}

p{margin:0 0 1.05em 0;}
p:last-child{margin-bottom:0;}

button,input{font-family:inherit;font-size:inherit;}

:focus-visible{outline:none;box-shadow:0 0 0 3px rgba(200,240,75,.45);border-radius:var(--radius-btn);}

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

.mono{font-variant-numeric:tabular-nums;font-feature-settings:"tnum";}

/* ============ 导航 ============ */
.site-header{
  position:sticky;
  top:0;
  z-index:60;
  background:var(--ink-900);
  border-bottom:1px solid transparent;
  transition:border-color .2s ease,box-shadow .2s ease;
}
.site-header.is-scrolled{border-bottom-color:var(--lime-400);box-shadow:0 10px 26px rgba(12,38,34,.22);}

.nav{
  max-width:var(--container);
  margin:0 auto;
  padding:0 24px;
  height:68px;
  display:flex;
  align-items:center;
  gap:28px;
}

.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto;color:#fff;}
.brand:hover{color:#fff;}
.brand__mark{
  width:20px;height:20px;flex:0 0 20px;
  display:inline-flex;align-items:center;justify-content:center;
  border-radius:6px;
  background:var(--lime-400);
  color:var(--ink-900);
  font-size:11px;
}
.brand__text{display:flex;flex-direction:column;line-height:1.1;}
.brand__main{font-size:16px;font-weight:800;letter-spacing:-0.01em;color:#fff;}
.brand__sub{font-size:9px;font-weight:600;letter-spacing:.22em;color:var(--lime-400);}

.nav__channels{display:flex;align-items:center;gap:6px;flex:1 1 auto;}
.nav__link{
  display:block;
  padding:0 12px;
  line-height:68px;
  font-size:15px;
  font-weight:500;
  color:rgba(255,255,255,.78);
  border-bottom:3px solid transparent;
}
.nav__link:hover{color:#fff;background:rgba(255,255,255,.05);}
.nav__link.is-active{color:#fff;border-bottom-color:var(--lime-400);font-weight:700;}

.nav__tools{display:flex;align-items:center;gap:12px;flex:0 0 auto;}
.nav__search{
  position:relative;
  display:flex;
  align-items:center;
}
.nav__search i{
  position:absolute;
  left:14px;
  font-size:13px;
  color:var(--muted);
  pointer-events:none;
}
.nav__search input{
  width:216px;
  height:40px;
  padding:0 16px 0 34px;
  border:1px solid rgba(255,255,255,.16);
  border-radius:var(--radius-pill);
  background:rgba(255,255,255,.07);
  color:#fff;
  font-size:14px;
  margin:0;
  transition:border-color .18s ease,background-color .18s ease;
}
.nav__search input::placeholder{color:rgba(255,255,255,.5);}
.nav__search input:focus{
  border-color:var(--lime-400);
  background:rgba(255,255,255,.12);
  box-shadow:0 0 0 3px rgba(200,240,75,.22);
  outline:none;
}
.nav__entry{
  font-size:14px;
  font-weight:600;
  color:rgba(255,255,255,.85);
  padding:8px 10px;
  border-radius:var(--radius-btn);
}
.nav__entry:hover{color:var(--lime-400);background:rgba(255,255,255,.06);}

.btn-lime{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  height:40px;
  padding:0 18px;
  border-radius:var(--radius-btn);
  background:var(--lime-400);
  color:var(--ink-900);
  font-size:14px;
  font-weight:700;
  white-space:nowrap;
  transition:background-color .18s ease,transform .18s ease,box-shadow .18s ease;
}
.btn-lime:hover{background:var(--lime-600);color:var(--ink-900);transform:translateY(-1px);}
.btn-lime:active{transform:translateY(0);}

.nav__burger{
  display:none;
  width:40px;height:40px;
  align-items:center;justify-content:center;
  border:1px solid rgba(255,255,255,.2);
  border-radius:var(--radius-btn);
  background:transparent;
  color:#fff;
  cursor:pointer;
  margin:0;
  transition:border-color .18s ease,background-color .18s ease;
}
.nav__burger:hover{border-color:var(--lime-400);background:rgba(255,255,255,.06);}

/* ============ 分类页首屏 ============ */
.cat-hero{
  position:relative;
  background-color:var(--ink-900);
  background-image:linear-gradient(100deg,rgba(12,38,34,.94) 0%,rgba(12,38,34,.86) 52%,rgba(12,38,34,.72) 100%),url('/assets/images/backpic/back-1.png');
  background-size:cover;
  background-position:center;
  color:#fff;
  padding:88px 0 80px;
  overflow:hidden;
}
.cat-hero::after{
  content:"";
  position:absolute;
  right:-120px;bottom:-160px;
  width:460px;height:460px;
  border-radius:50%;
  background:radial-gradient(circle,rgba(200,240,75,.22) 0%,rgba(200,240,75,0) 68%);
  pointer-events:none;
}
.cat-hero .container{position:relative;z-index:2;}
.crumb{
  display:flex;
  align-items:center;
  gap:8px;
  font-size:13px;
  color:rgba(255,255,255,.62);
  margin-bottom:24px;
}
.crumb a{color:rgba(255,255,255,.72);}
.crumb a:hover{color:var(--lime-400);}
.crumb span{color:rgba(255,255,255,.34);}

.cat-hero__badge{
  display:inline-flex;
  align-items:center;
  gap:8px;
  height:30px;
  padding:0 14px;
  border-radius:var(--radius-pill);
  background:rgba(242,163,60,.18);
  border:1px solid rgba(242,163,60,.5);
  color:var(--amber-500);
  font-size:13px;
  font-weight:600;
  margin-bottom:20px;
}
.dot-pulse{
  width:8px;height:8px;border-radius:50%;
  background:var(--amber-500);
  position:relative;
  flex:0 0 8px;
}
.dot-pulse::after{
  content:"";
  position:absolute;inset:-4px;
  border-radius:50%;
  border:1px solid var(--amber-500);
  animation:pulse 1.6s ease-out infinite;
}
@keyframes pulse{
  0%{transform:scale(.6);opacity:.9;}
  100%{transform:scale(1.6);opacity:0;}
}

.cat-hero h1{
  color:#fff;
  font-size:46px;
  font-weight:800;
  line-height:1.2;
  letter-spacing:-0.01em;
  max-width:16em;
}
.cat-hero__lead{
  margin-top:20px;
  max-width:44em;
  font-size:17px;
  line-height:1.8;
  color:rgba(255,255,255,.78);
}
.cat-hero__meta{
  display:flex;
  flex-wrap:wrap;
  gap:12px;
  margin-top:32px;
}
.meta-chip{
  display:inline-flex;
  align-items:center;
  gap:8px;
  height:36px;
  padding:0 16px;
  border-radius:var(--radius-pill);
  border:1px solid rgba(255,255,255,.18);
  background:rgba(255,255,255,.06);
  font-size:13px;
  font-weight:500;
  color:rgba(255,255,255,.86);
}
.meta-chip i{color:var(--lime-400);font-size:12px;}

/* ============ 通用板块 ============ */
.section{padding:var(--space-section) 0;}
.section--tight{padding:72px 0;}
.section--paper{background:var(--paper);}
.section--card{background:var(--card);}

.section-head{
  display:flex;
  align-items:flex-end;
  justify-content:space-between;
  gap:24px;
  margin-bottom:40px;
}
.section-head h2{
  font-size:32px;
  font-weight:700;
}
.section-head p{
  margin-top:10px;
  font-size:15px;
  color:var(--muted);
  max-width:52em;
}
.section-more{
  flex:0 0 auto;
  font-size:14px;
  font-weight:600;
  color:var(--ink-700);
  display:inline-flex;
  align-items:center;
  gap:6px;
  padding-bottom:2px;
  border-bottom:1px solid var(--line);
}
.section-more:hover{border-bottom-color:var(--lime-600);}

/* ============ 时间轴列表 ============ */
.tl{margin-top:8px;border-top:1px solid var(--line);}
.tl-item{
  display:grid;
  grid-template-columns:148px 1fr;
  gap:28px;
  align-items:start;
  min-height:88px;
  padding:22px 24px;
  border-bottom:1px solid var(--line);
  transition:background-color .2s ease,box-shadow .2s ease,transform .2s ease;
}
.tl-item:nth-child(odd){background:var(--paper);}
.tl-item:nth-child(even){background:var(--card);}
.tl-item:hover{
  background:rgba(200,240,75,.1);
  box-shadow:var(--shadow-card);
  transform:translateX(4px);
}
.tl-time{
  display:flex;
  flex-direction:column;
  gap:2px;
}
.tl-num{
  font-size:26px;
  font-weight:800;
  line-height:1.1;
  color:var(--ink-900);
  font-variant-numeric:tabular-nums;
  letter-spacing:-0.02em;
}
.tl-item:hover .tl-num{color:var(--lime-600);}
.tl-dur{
  font-size:13px;
  font-weight:600;
  color:var(--muted);
  font-variant-numeric:tabular-nums;
}
.tl-body h3{
  font-size:20px;
  font-weight:600;
  margin-bottom:8px;
}
.tl-body p{
  font-size:16px;
  color:var(--muted);
  line-height:1.75;
  max-width:60em;
}
.tl-tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:12px;}

.tag{
  display:inline-flex;
  align-items:center;
  height:26px;
  padding:0 12px;
  border-radius:var(--radius-pill);
  border:1px solid var(--line);
  background:var(--card);
  color:var(--ink-700);
  font-size:12px;
  font-weight:600;
}
.tag--amber{
  background:rgba(242,163,60,.14);
  border-color:rgba(242,163,60,.36);
  color:#8A5A15;
}
.tag--lime{
  background:rgba(200,240,75,.24);
  border-color:rgba(154,203,30,.4);
  color:#4C6A08;
}

/* ============ 双栏图文 ============ */
.split{display:grid;grid-template-columns:1.05fr .95fr;gap:56px;align-items:center;}
.split__media{
  border-radius:var(--radius-card);
  overflow:hidden;
  border:1px solid var(--line);
  box-shadow:var(--shadow-card);
  background:var(--card);
}
.split__media img{
  width:100%;
  aspect-ratio:4/3;
  object-fit:cover;
  border-radius:var(--radius-card);
}
.split h2{font-size:32px;margin-bottom:16px;}
.split p{color:var(--muted);font-size:16px;}

.check-list{margin-top:28px;display:grid;gap:14px;}
.check-item{
  display:flex;
  gap:14px;
  padding:16px 18px;
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  background:var(--card);
  box-shadow:var(--shadow-card);
  transition:transform .18s ease,box-shadow .18s ease,border-color .18s ease;
}
.check-item:hover{transform:translateY(-3px);box-shadow:var(--shadow-hover);border-color:rgba(154,203,30,.45);}
.check-item i{
  flex:0 0 34px;
  width:34px;height:34px;
  display:inline-flex;align-items:center;justify-content:center;
  border-radius:10px;
  background:rgba(200,240,75,.3);
  color:var(--ink-900);
  font-size:14px;
}
.check-item h3{font-size:17px;font-weight:600;margin-bottom:4px;}
.check-item p{font-size:14px;color:var(--muted);margin:0;}

/* ============ 场景卡 ============ */
.grid-cards{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;}
.card{
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  padding:24px;
  box-shadow:var(--shadow-card);
  transition:transform .18s ease,box-shadow .18s ease,border-color .18s ease;
  display:flex;
  flex-direction:column;
}
.card:hover{transform:translateY(-3px);box-shadow:var(--shadow-hover);border-color:rgba(154,203,30,.4);}
.card__icon{
  width:40px;height:40px;
  display:inline-flex;align-items:center;justify-content:center;
  border-radius:10px;
  background:var(--ink-900);
  color:var(--lime-400);
  font-size:15px;
  margin-bottom:18px;
}
.card h3{font-size:19px;font-weight:600;margin-bottom:10px;}
.card p{font-size:15px;color:var(--muted);margin:0;}
.card__foot{margin-top:18px;padding-top:16px;border-top:1px solid var(--line);font-size:13px;color:var(--muted);display:flex;align-items:center;gap:8px;}

/* ============ 数据条 ============ */
.stats{
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  box-shadow:var(--shadow-card);
  display:grid;
  grid-template-columns:repeat(4,1fr);
}
.stat{
  padding:28px 24px;
  border-right:1px solid var(--line);
}
.stat:last-child{border-right:none;}
.stat__num{
  font-size:34px;
  font-weight:800;
  color:var(--ink-900);
  font-variant-numeric:tabular-nums;
  line-height:1.15;
  letter-spacing:-0.02em;
}
.stat__num span{font-size:18px;font-weight:600;color:var(--muted);margin-left:4px;}
.stat__label{font-size:14px;color:var(--muted);margin-top:6px;}

/* ============ FAQ ============ */
.faq{max-width:920px;}
.faq-item{
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  background:var(--card);
  margin-bottom:12px;
  overflow:hidden;
  transition:box-shadow .18s ease,border-color .18s ease;
}
.faq-item:hover{border-color:rgba(154,203,30,.4);}
.faq-item.is-open{box-shadow:var(--shadow-card);border-color:rgba(154,203,30,.5);}
.faq-q{
  width:100%;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:20px;
  padding:20px 22px;
  background:transparent;
  border:none;
  text-align:left;
  cursor:pointer;
  color:var(--ink-900);
  font-size:17px;
  font-weight:600;
  line-height:1.5;
  margin:0;
  position:relative;
}
.faq-q::before{
  content:"";
  position:absolute;
  left:0;top:0;bottom:0;
  width:4px;
  background:var(--lime-400);
  opacity:0;
  transition:opacity .2s ease;
}
.faq-item.is-open .faq-q::before{opacity:1;}
.faq-q i{
  flex:0 0 auto;
  font-size:14px;
  color:var(--ink-700);
  transition:transform .2s ease,color .2s ease;
}
.faq-item.is-open .faq-q i{transform:rotate(45deg);color:var(--lime-600);}
.faq-a{
  max-height:0;
  overflow:hidden;
  transition:max-height .28s ease;
}
.faq-a__inner{
  padding:0 22px 22px 22px;
  font-size:16px;
  line-height:1.75;
  color:var(--muted);
  border-top:1px solid var(--line);
  padding-top:16px;
  margin-top:2px;
}

/* ============ CTA ============ */
.cta{
  background:var(--ink-900);
  color:#fff;
  border-radius:var(--radius-card);
  padding:52px 48px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:36px;
  position:relative;
  overflow:hidden;
}
.cta::after{
  content:"";
  position:absolute;
  right:-80px;top:-90px;
  width:320px;height:320px;
  border-radius:50%;
  background:radial-gradient(circle,rgba(200,240,75,.18) 0%,rgba(200,240,75,0) 70%);
}
.cta__text{position:relative;z-index:2;max-width:56em;}
.cta h2{color:#fff;font-size:30px;margin-bottom:12px;}
.cta p{color:rgba(255,255,255,.76);font-size:16px;margin:0;}
.cta__actions{position:relative;z-index:2;display:flex;gap:14px;flex-wrap:wrap;flex:0 0 auto;}

.btn-primary{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 24px;
  border-radius:var(--radius-btn);
  background:var(--lime-400);
  color:var(--ink-900);
  font-size:15px;font-weight:700;
  transition:background-color .18s ease,transform .18s ease,box-shadow .18s ease;
}
.btn-primary:hover{background:var(--lime-600);color:var(--ink-900);transform:translateY(-1px);box-shadow:0 10px 24px rgba(154,203,30,.28);}
.btn-primary:active{transform:translateY(0);}

.btn-ghost{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 24px;
  border-radius:var(--radius-btn);
  border:1.5px solid var(--ink-700);
  background:transparent;
  color:var(--ink-900);
  font-size:15px;font-weight:700;
  transition:background-color .18s ease,border-color .18s ease,color .18s ease;
}
.btn-ghost:hover{background:rgba(12,38,34,.06);color:var(--ink-900);border-color:var(--ink-900);}
.btn-ghost--light{border-color:rgba(255,255,255,.4);color:#fff;}
.btn-ghost--light:hover{background:rgba(255,255,255,.1);border-color:#fff;color:#fff;}

/* ============ 页脚 ============ */
.site-footer{
  background:var(--ink-900);
  color:rgba(255,255,255,.72);
  padding:72px 0 28px;
  margin-top:0;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.5fr 1fr 1fr 1.3fr;
  gap:40px;
  padding-bottom:44px;
  border-bottom:1px solid rgba(255,255,255,.12);
}
.footer-brand .brand{margin-bottom:16px;}
.footer-brand p{font-size:14px;line-height:1.8;color:rgba(255,255,255,.6);max-width:32em;}
.footer-col h4{
  font-size:14px;
  font-weight:700;
  color:var(--lime-400);
  margin-bottom:16px;
  letter-spacing:.02em;
}
.footer-col ul{display:grid;gap:10px;}
.footer-col ul a{font-size:14px;color:rgba(255,255,255,.72);}
.footer-col ul a:hover{color:var(--lime-400);}
.footer-sub p{font-size:14px;color:rgba(255,255,255,.6);margin-bottom:14px;}
.footer-sub form{display:flex;gap:10px;}
.footer-sub input{
  flex:1 1 auto;
  min-width:0;
  height:44px;
  padding:0 14px;
  border-radius:var(--radius-btn);
  border:1px solid rgba(255,255,255,.2);
  background:rgba(255,255,255,.06);
  color:#fff;
  font-size:14px;
  margin:0;
  transition:border-color .18s ease,background-color .18s ease;
}
.footer-sub input::placeholder{color:rgba(255,255,255,.45);}
.footer-sub input:focus{border-color:var(--lime-400);background:rgba(255,255,255,.12);outline:none;box-shadow:0 0 0 3px rgba(200,240,75,.22);}
.footer-sub button{
  flex:0 0 auto;
  height:44px;
  padding:0 20px;
  border:none;
  border-radius:var(--radius-btn);
  background:var(--lime-400);
  color:var(--ink-900);
  font-size:14px;
  font-weight:700;
  cursor:pointer;
  margin:0;
  transition:background-color .18s ease,transform .18s ease;
}
.footer-sub button:hover{background:var(--lime-600);transform:translateY(-1px);}
.footer-bottom{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  flex-wrap:wrap;
  padding-top:24px;
  font-size:13px;
  color:rgba(255,255,255,.5);
}

/* ============ 响应式 ============ */
@media screen and (max-width:1200px){
  .nav__search input{width:170px;}
  .cat-hero h1{font-size:40px;}
}

@media screen and (max-width:1024px){
  :root{--space-section:72px;}
  .nav{gap:18px;}
  .nav__channels{gap:0;}
  .nav__link{padding:0 9px;font-size:14px;}
  .nav__search{display:none;}
  .split{grid-template-columns:1fr;gap:36px;}
  .grid-cards{grid-template-columns:repeat(2,1fr);}
  .stats{grid-template-columns:repeat(2,1fr);}
  .stat{border-right:none;border-bottom:1px solid var(--line);}
  .stat:nth-child(odd){border-right:1px solid var(--line);}
  .stat:nth-child(3),.stat:nth-child(4){border-bottom:none;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
}

@media screen and (max-width:900px){
  .nav{height:64px;justify-content:space-between;}
  .nav__burger{display:inline-flex;}
  .nav__entry{display:none;}
  .nav__channels{
    position:fixed;
    top:64px;left:0;right:0;
    flex-direction:column;
    align-items:stretch;
    gap:0;
    background:var(--ink-900);
    padding:6px 0 14px;
    display:none;
    box-shadow:0 20px 34px rgba(12,38,34,.34);
    border-bottom:1px solid rgba(255,255,255,.1);
    max-height:calc(100vh - 64px);
    overflow-y:auto;
  }
  .nav__channels.is-open{display:flex;}
  .nav__link{
    line-height:56px;
    padding:0 24px;
    border-bottom:none;
    border-left:3px solid transparent;
    font-size:15px;
  }
  .nav__link.is-active{border-left-color:var(--lime-400);background:rgba(255,255,255,.05);}
  .cat-hero{padding:64px 0 60px;}
  .cat-hero h1{font-size:34px;}
  .section-head{flex-direction:column;align-items:flex-start;gap:12px;margin-bottom:28px;}
  .section-head h2{font-size:26px;}
  .cta{flex-direction:column;align-items:flex-start;padding:40px 28px;}
  .cta h2{font-size:24px;}
}

@media screen and (max-width:640px){
  .container{padding:0 16px;}
  .nav{padding:0 16px;}
  .brand__main{font-size:15px;}
  .cat-hero{padding:52px 0 48px;}
  .cat-hero h1{font-size:29px;max-width:100%;}
  .cat-hero__lead{font-size:15px;}
  .meta-chip{height:32px;padding:0 12px;font-size:12px;}
  .section{padding:56px 0;}
  .tl-item{
    grid-template-columns:1fr;
    gap:10px;
    padding:20px 16px;
  }
  .tl-time{flex-direction:row;align-items:baseline;gap:10px;}
  .tl-num{font-size:22px;}
  .tl-body h3{font-size:18px;}
  .grid-cards{grid-template-columns:1fr;}
  .stats{grid-template-columns:1fr;}
  .stat{border-right:none !important;border-bottom:1px solid var(--line);}
  .stat:last-child{border-bottom:none;}
  .footer-grid{grid-template-columns:1fr;gap:28px;}
  .footer-sub form{flex-wrap:wrap;}
  .footer-sub button{width:100%;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
  .cta__actions{width:100%;}
  .cta__actions .btn-primary,.cta__actions .btn-ghost{width:100%;}
}