/* roulang page: index */
:root{
  --bg-night:#0a0e16;
  --bg-surface:#151b26;
  --bg-surface-2:#1a1226;
  --bg-page-footer:#070a10;
  --accent-cat:#e8a33d;
  --accent-purple:#8b5cf6;
  --text-main:#e5e9ef;
  --text-sub:#9aa4b2;
  --text-faint:#6b7686;
  --line-muted:rgba(255,255,255,.08);
  --danger:#f87171;
  --success:#34d399;
  --shadow-card:0 8px 30px rgba(0,0,0,.35);
  --shadow-hover:0 12px 40px rgba(232,163,61,.08);
  --radius:12px;
  --radius-btn:8px;
  --radius-pill:999px;
}
*{box-sizing:border-box;margin:0;padding:0;}
html,body{overflow-x:hidden;}
body{
  font-family:system-ui,-apple-system,"PingFang SC","Microsoft YaHei","Noto Sans SC",sans-serif;
  background:var(--bg-night);
  color:var(--text-main);
  font-size:16px;
  line-height:1.7;
  -webkit-font-smoothing:antialiased;
}
a{color:inherit;text-decoration:none;transition:color .2s ease;}
img{max-width:100%;display:block;}
ul{list-style:none;}
button{font-family:inherit;cursor:pointer;border:none;background:none;color:inherit;}
input,select{font-family:inherit;font-size:16px;}
.container{max-width:1200px;margin:0 auto;padding:0 24px;}
.section{padding:96px 0;}
.section-head{margin-bottom:48px;max-width:680px;}
.section-head h2{
  font-size:40px;font-weight:700;line-height:1.2;letter-spacing:-.01em;
  margin-bottom:8px;color:var(--text-main);
}
.section-head h2::after{
  content:"";display:block;width:40px;height:4px;border-radius:2px;
  background:var(--accent-cat);margin-top:12px;
}
.section-head p{color:var(--text-sub);font-size:16px;line-height:1.7;margin-top:14px;}
.section-tag{
  display:inline-block;font-size:13px;font-weight:600;letter-spacing:.04em;
  color:var(--accent-cat);text-transform:none;margin-bottom:10px;
}
/* ===== Header ===== */
.site-header{
  position:sticky;top:0;z-index:50;
  background:rgba(10,14,22,.85);
  -webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);
  border-bottom:1px solid var(--line-muted);
}
.nav-container{
  display:flex;align-items:center;justify-content:space-between;
  height:64px;gap:20px;
}
.brand{
  display:flex;align-items:center;gap:10px;
  font-size:20px;font-weight:800;letter-spacing:-.01em;color:var(--text-main);
  flex-shrink:0;
}
.brand svg{width:28px;height:28px;flex-shrink:0;}
.main-nav{display:flex;align-items:center;gap:4px;flex:1;justify-content:center;}
.nav-link{
  position:relative;padding:8px 14px;font-size:14px;color:var(--text-sub);
  border-radius:8px;transition:color .2s ease,background .2s ease;
}
.nav-link:hover{color:var(--text-main);background:rgba(255,255,255,.04);}
.nav-link.active{color:var(--text-main);font-weight:600;}
.nav-link.active::after{
  content:"";position:absolute;left:14px;right:14px;bottom:2px;
  height:2px;border-radius:1px;background:var(--accent-cat);
}
.nav-actions{
  display:flex;align-items:center;gap:8px;flex-shrink:0;
}
.nav-search{
  display:flex;align-items:center;gap:6px;
  background:rgba(255,255,255,.05);
  border:1px solid rgba(255,255,255,.08);
  border-radius:var(--radius-pill);
  padding:6px 14px;
  width:180px;
  transition:width .25s ease,border-color .2s ease,box-shadow .2s ease;
}
.nav-search:focus-within{
  width:260px;
  border-color:var(--accent-cat);
  box-shadow:0 0 0 3px rgba(232,163,61,.15);
}
.nav-search .search-prefix{color:var(--text-faint);font-size:13px;flex-shrink:0;}
.nav-search input{
  background:transparent;border:none;outline:none;color:var(--text-main);
  font-size:13px;width:100%;
}
.nav-search input::placeholder{color:var(--text-faint);}
.icon-btn{
  width:36px;height:36px;display:flex;align-items:center;justify-content:center;
  border-radius:8px;color:var(--text-sub);transition:color .2s ease,background .2s ease;
}
.icon-btn:hover{color:var(--accent-cat);background:rgba(232,163,61,.08);}
.icon-btn svg{width:20px;height:20px;}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:6px;
  font-weight:700;border-radius:var(--radius-btn);
  transition:all .2s ease;cursor:pointer;text-align:center;line-height:1.2;
}
.btn-primary{
  background:var(--accent-cat);color:#131313;
  padding:12px 28px;font-size:15px;
}
.btn-primary:hover{background:#f0b054;box-shadow:0 6px 20px rgba(232,163,61,.25);}
.btn-primary:active{transform:translateY(1px);}
.btn-primary:focus-visible{outline:3px solid rgba(232,163,61,.5);outline-offset:2px;}
.btn-secondary{
  background:transparent;color:var(--accent-purple);
  border:1px solid var(--accent-purple);
  padding:12px 28px;font-size:15px;
}
.btn-secondary:hover{background:rgba(139,92,246,.15);}
.btn-secondary:active{transform:translateY(1px);}
.btn-secondary:focus-visible{outline:3px solid rgba(139,92,246,.4);outline-offset:2px;}
.btn-ghost{
  color:var(--text-sub);padding:8px 4px;font-size:14px;background:none;
}
.btn-ghost .arrow{transition:transform .2s ease;}
.btn-ghost:hover{color:var(--text-main);}
.btn-ghost:hover .arrow{transform:translateX(4px);}
.btn-sm{padding:8px 18px;font-size:13px;}
/* 移动端按钮 */
.btn-mobile-cta{display:none;}
/* ===== Hero ===== */
.hero{
  position:relative;
  background:var(--bg-night);
  overflow:hidden;
}
.hero-bg{
  position:absolute;inset:0;
  background-image:url('/assets/images/backpic/back-1.jpg');
  background-size:cover;background-position:center;
  opacity:.45;
}
.hero-bg::after{
  content:"";position:absolute;inset:0;
  background:
    radial-gradient(ellipse at 78% 20%,rgba(139,92,246,.28),transparent 55%),
    radial-gradient(ellipse at 18% 80%,rgba(232,163,61,.18),transparent 60%),
    linear-gradient(135deg,#0a0e16 0%,rgba(10,14,22,.82) 45%,rgba(10,14,22,.95) 100%);
}
.hero-inner{
  position:relative;z-index:2;
  display:flex;align-items:center;gap:56px;
  padding:80px 0 88px;
  min-height:640px;
}
.hero-left{flex:1;max-width:560px;}
.hero-badge{
  display:inline-flex;align-items:center;gap:8px;
  background:rgba(232,163,61,.12);
  border:1px solid rgba(232,163,61,.3);
  color:var(--accent-cat);
  font-size:13px;font-weight:600;
  padding:6px 16px;border-radius:var(--radius-pill);
  margin-bottom:20px;
}
.hero-badge .badge-dot{
  width:8px;height:8px;border-radius:50%;
  background:var(--accent-cat);
  box-shadow:0 0 8px rgba(232,163,61,.7);
  animation:pulse 2s infinite;
}
@keyframes pulse{0%,100%{opacity:1;}50%{opacity:.4;}}
.hero-left h1{
  font-size:56px;font-weight:800;line-height:1.15;letter-spacing:-.01em;
  color:var(--text-main);
  margin-bottom:20px;
}
.hero-left h1 .gradient{
  background:linear-gradient(120deg,var(--accent-cat),#f6cf7a);
  -webkit-background-clip:text;background-clip:text;
  -webkit-text-fill-color:transparent;color:transparent;
}
.hero-sub{
  font-size:17px;line-height:1.7;color:var(--text-sub);
  max-width:440px;margin-bottom:28px;
}
.hero-actions{display:flex;gap:14px;flex-wrap:wrap;margin-bottom:32px;}
.hero-tags{display:flex;gap:18px;flex-wrap:wrap;}
.hero-tags .tag{
  font-size:13px;color:var(--text-sub);
  padding:6px 14px;border:1px solid var(--line-muted);
  border-radius:var(--radius-pill);
  background:rgba(255,255,255,.03);
}
.hero-tags .tag strong{color:var(--text-main);font-weight:600;}
/* Hero 封面海报 */
.hero-poster{
  flex:0 0 400px;
  position:relative;
  border-radius:16px;
  overflow:hidden;
  box-shadow:var(--shadow-card);
  border:1px solid rgba(255,255,255,.08);
}
.hero-poster img{width:100%;height:auto;aspect-ratio:4/3;object-fit:cover;}
.hero-poster::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(to bottom,rgba(0,0,0,0) 55%,rgba(0,0,0,.65) 100%);
  pointer-events:none;
}
.poster-play{
  position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);
  z-index:3;
  width:64px;height:64px;border-radius:50%;
  background:rgba(232,163,61,.9);
  display:flex;align-items:center;justify-content:center;
  transition:transform .25s ease,box-shadow .25s ease;
  box-shadow:0 0 24px rgba(232,163,61,.4);
}
.hero-poster:hover .poster-play{
  transform:translate(-50%,-50%) scale(1.1);
  box-shadow:0 0 40px rgba(232,163,61,.6);
}
.poster-play svg{width:24px;height:24px;color:#131313;margin-left:3px;}
.poster-info{
  position:absolute;left:0;right:0;bottom:0;z-index:3;
  padding:16px 18px;
  display:flex;align-items:center;gap:12px;
}
.poster-progress{
  flex:1;height:3px;border-radius:2px;
  background:rgba(255,255,255,.2);
  overflow:hidden;
}
.poster-progress span{
  display:block;height:100%;width:68%;
  background:var(--accent-cat);border-radius:2px;
}
.poster-time{font-size:12px;color:rgba(255,255,255,.9);font-weight:600;letter-spacing:.02em;}
/* ===== 指标看板 ===== */
.metrics-section{padding:72px 0;background:var(--bg-night);}
.metrics-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;}
.metric-card{
  background:var(--bg-surface);
  border:1px solid var(--line-muted);
  border-radius:var(--radius);
  padding:24px;
  position:relative;
  transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.metric-card:hover{
  transform:translateY(-2px);
  box-shadow:var(--shadow-hover);
  border-color:rgba(232,163,61,.3);
}
.metric-top{display:flex;align-items:center;gap:8px;margin-bottom:16px;}
.metric-dot{
  width:8px;height:8px;border-radius:50%;
  background:var(--text-faint);
  transition:background .2s ease,box-shadow .2s ease;
}
.metric-card:hover .metric-dot{
  background:var(--accent-cat);
  box-shadow:0 0 10px rgba(232,163,61,.7);
}
.metric-label{font-size:13px;color:var(--text-sub);}
.metric-num{
  font-size:48px;font-weight:800;
  font-family:"DIN Alternate","Bebas Neue",system-ui,sans-serif;
  color:var(--text-main);line-height:1.1;
  margin-bottom:8px;
}
.metric-num small{font-size:22px;color:var(--text-faint);font-weight:600;}
.metric-change{
  font-size:13px;font-weight:600;
  display:inline-flex;align-items:center;gap:4px;
}
.metric-change.up{color:var(--success);}
.metric-change.down{color:var(--success);opacity:.8;}
.metric-change .mt-icon{font-size:14px;}
/* ===== 服务矩阵 ===== */
.services-section{
  padding:96px 0;
  position:relative;
  background:linear-gradient(to bottom,var(--bg-night),var(--bg-surface-2) 50%,var(--bg-night));
}
.services-grid{
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:24px;
}
.service-card{
  background:var(--bg-surface);
  border:1px solid var(--line-muted);
  border-radius:var(--radius);
  padding:28px;
  position:relative;
  overflow:hidden;
  transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.service-card:hover{
  transform:translateY(-2px);
  box-shadow:var(--shadow-hover);
  border-color:rgba(232,163,61,.3);
}
.service-card:nth-child(1){grid-column:span 2;}
.service-card:nth-child(2){grid-column:2 / span 2;grid-row:2;}
.service-card:nth-child(3){grid-column:3;}
.service-card:nth-child(4){grid-column:4;}
.service-card:nth-child(5){grid-column:1;grid-row:2;}
.service-card:nth-child(6){grid-column:4;grid-row:2;}
.service-icon{
  width:48px;height:48px;border-radius:50%;
  background:rgba(232,163,61,.12);
  display:flex;align-items:center;justify-content:center;
  margin-bottom:18px;
}
.service-icon svg{width:22px;height:22px;color:var(--accent-cat);}
.service-icon.purple{background:rgba(139,92,246,.14);}
.service-icon.purple svg{color:var(--accent-purple);}
.service-card h3{font-size:20px;font-weight:700;color:var(--text-main);margin-bottom:8px;}
.service-card p{font-size:14px;color:var(--text-sub);line-height:1.65;margin-bottom:14px;}
.service-badges{display:flex;gap:8px;flex-wrap:wrap;}
.service-badge{
  font-size:12px;color:var(--text-sub);
  padding:3px 10px;border:1px solid var(--line-muted);
  border-radius:var(--radius-pill);
  background:rgba(255,255,255,.03);
}
.service-card .service-link{
  display:inline-flex;align-items:center;gap:5px;
  font-size:13px;font-weight:600;color:var(--accent-cat);
  margin-top:16px;
}
.service-card .service-link .arrow{transition:transform .2s ease;}
.service-card .service-link:hover .arrow{transform:translateX(4px);}
/* ===== 结果对比 ===== */
.compare-section{padding:96px 0;background:var(--bg-night);}
.compare{display:flex;gap:0;position:relative;align-items:stretch;}
.compare-col{
  flex:1;
  padding:32px 32px 40px;
  border-radius:var(--radius);
}
.compare-col.bad{
  background:rgba(248,113,113,.04);
  border:1px solid rgba(248,113,113,.15);
  border-radius:12px 0 0 12px;
}
.compare-col.good{
  background:rgba(52,211,153,.05);
  border:1px solid rgba(232,163,61,.25);
  border-radius:0 12px 12px 0;
}
.compare-col h3{
  font-size:18px;font-weight:700;
  margin-bottom:20px;
}
.compare-col.bad h3{color:var(--danger);}
.compare-col.good h3{color:var(--accent-cat);}
.compare-list li{
  display:flex;align-items:center;gap:12px;
  min-height:48px;
  font-size:15px;color:var(--text-sub);
  line-height:1.5;
}
.compare-icon{
  width:24px;height:24px;border-radius:50%;
  display:flex;align-items:center;justify-content:center;
  flex-shrink:0;
  font-size:13px;font-weight:700;
}
.compare-icon.bad-icon{
  background:rgba(248,113,113,.12);color:var(--danger);
}
.compare-icon.good-icon{
  background:rgba(232,163,61,.14);color:var(--accent-cat);
}
.compare-strip{
  position:absolute;left:50%;top:0;transform:translateX(-50%);
  width:24px;height:100%;
  background:linear-gradient(180deg,var(--accent-cat),var(--accent-purple));
  clip-path:polygon(0 0,100% 0,50% 100%);
  opacity:.35;
  z-index:1;
}
/* ===== 资讯区 ===== */
.news-section{padding:96px 0;background:var(--bg-surface-2);}
.news-wrap{display:flex;gap:32px;}
.news-main{flex:1 1 auto;min-width:0;}
.news-main-title{
  font-size:18px;font-weight:700;color:var(--text-main);
  margin-bottom:20px;padding-bottom:12px;
  border-bottom:1px solid var(--line-muted);
}
.news-list li{
  border-bottom:1px solid rgba(255,255,255,.04);
  padding:14px 0;
  display:flex;align-items:center;gap:12px;
}
.news-list li:last-child{border-bottom:none;}
.news-tag{
  flex-shrink:0;
  font-size:12px;font-weight:600;
  padding:3px 10px;border-radius:6px;
  background:rgba(139,92,246,.12);color:var(--accent-purple);
}
.news-tag.hot{background:rgba(232,163,61,.12);color:var(--accent-cat);}
.news-list a{
  font-size:15px;color:var(--text-sub);line-height:1.5;
  overflow:hidden;text-overflow:ellipsis;white-space:nowrap;
  transition:color .2s ease;
}
.news-list a:hover{color:var(--accent-cat);}
.news-side{
  flex:0 0 320px;
  background:var(--bg-night);
  border:1px solid var(--line-muted);
  border-radius:var(--radius);
  padding:24px;
}
.news-side h4{
  font-size:15px;font-weight:700;color:var(--text-main);
  margin-bottom:14px;
}
.news-side ul li{
  padding:8px 0;
  font-size:14px;color:var(--text-sub);
  line-height:1.5;
}
.news-side ul li a:hover{color:var(--accent-cat);}
.news-side ul li .rank{
  display:inline-block;width:20px;color:var(--accent-cat);
  font-weight:800;margin-right:4px;
}
/* ===== FAQ ===== */
.faq-section{padding:96px 0;background:var(--bg-night);}
.faq-wrap{max-width:820px;}
.faq-item{
  border:1px solid var(--line-muted);
  border-radius:8px;
  margin-bottom:14px;
  overflow:hidden;
  background:var(--bg-surface);
  transition:border-color .2s ease;
}
.faq-item:hover{border-color:rgba(232,163,61,.3);}
.faq-item.active{border-color:rgba(232,163,61,.4);}
.faq-toggle{
  width:100%;display:flex;align-items:center;gap:14px;
  padding:18px 22px;
  text-align:left;
  font-size:16px;font-weight:600;color:var(--text-main);
  background:transparent;
}
.faq-toggle:hover{color:var(--accent-cat);}
.faq-moon{
  font-size:18px;color:var(--accent-cat);flex-shrink:0;
  line-height:1;
}
.faq-plus{
  margin-left:auto;flex-shrink:0;
  width:24px;height:24px;
  display:flex;align-items:center;justify-content:center;
  font-size:18px;font-weight:400;
  border-radius:50%;
  background:rgba(255,255,255,.05);
  color:var(--text-sub);
  transition:transform .3s ease,color .2s ease,background .2s ease;
}
.faq-item.active .faq-plus{
  transform:rotate(45deg);
  color:var(--accent-cat);
  background:rgba(232,163,61,.12);
}
.faq-panel{
  max-height:0;overflow:hidden;
  transition:max-height .35s ease;
}
.faq-panel-inner{
  padding:0 22px 20px 56px;
  font-size:14px;color:var(--text-sub);line-height:1.7;
}
/* ===== 转化表单 ===== */
.cta-section{padding:96px 0;}
.cta-panel{
  border-radius:12px;
  border:1px solid rgba(232,163,61,.2);
  background:linear-gradient(135deg,#151b26,#1a1226);
  padding:48px 56px;
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:48px;
  position:relative;
  overflow:hidden;
}
.cta-panel::before{
  content:"";position:absolute;top:-40px;right:-40px;
  width:220px;height:220px;
  background:radial-gradient(circle,rgba(232,163,61,.18),transparent 70%);
  pointer-events:none;
}
.cta-left h3{font-size:28px;font-weight:800;color:var(--text-main);margin-bottom:16px;}
.cta-left p{font-size:15px;color:var(--text-sub);margin-bottom:24px;line-height:1.7;}
.cta-list{margin-bottom:24px;}
.cta-list li{
  display:flex;align-items:center;gap:10px;
  padding:6px 0;font-size:15px;color:var(--text-main);
}
.cta-list .check{
  width:20px;height:20px;border-radius:50%;
  background:rgba(232,163,61,.15);
  color:var(--accent-cat);
  display:flex;align-items:center;justify-content:center;
  font-size:12px;font-weight:700;flex-shrink:0;
}
.cta-badges{display:flex;gap:10px;flex-wrap:wrap;}
.cta-badge{
  font-size:12px;color:var(--text-sub);
  padding:5px 14px;border:1px solid var(--line-muted);
  border-radius:var(--radius-pill);
  background:rgba(255,255,255,.03);
}
.cta-form{display:flex;flex-direction:column;gap:16px;}
.form-group label{
  display:block;font-size:13px;color:var(--text-sub);
  margin-bottom:6px;font-weight:600;
}
.form-group input,.form-group select{
  width:100%;height:44px;
  background:#0d1119;
  border:1px solid rgba(255,255,255,.08);
  border-radius:8px;
  padding:0 14px;
  color:var(--text-main);
  font-size:15px;
  outline:none;
  transition:border-color .2s ease,box-shadow .2s ease;
}
.form-group select{
  appearance:none;
  -webkit-appearance:none;
  background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' fill='none'%3E%3Cpath d='M1 1l5 5 5-5' stroke='%239aa4b2' stroke-width='1.5'/%3E%3C/svg%3E");
  background-repeat:no-repeat;
  background-position:right 14px center;
}
.form-group input:focus,.form-group select:focus{
  border-color:var(--accent-cat);
  box-shadow:0 0 0 3px rgba(232,163,61,.15);
}
.form-group input::placeholder{color:var(--text-faint);}
.cta-form .btn{width:100%;height:48px;font-size:16px;margin-top:8px;}
.form-note{
  font-size:12px;color:var(--text-faint);
  text-align:center;margin-top:-4px;
}
/* ===== Footer ===== */
.site-footer{
  background:var(--bg-page-footer);
  border-top:1px solid var(--line-muted);
  padding:56px 0 0;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.4fr 1fr 1fr 1fr;
  gap:40px;
  padding-bottom:48px;
}
.footer-brand .brand{font-size:20px;margin-bottom:12px;}
.footer-brand p{
  font-size:14px;color:var(--text-sub);
  line-height:1.7;max-width:260px;
}
.footer-col h4{
  font-size:14px;font-weight:700;color:var(--text-main);
  margin-bottom:14px;letter-spacing:.02em;
}
.footer-col ul li{padding:4px 0;}
.footer-col ul a{
  font-size:14px;color:var(--text-sub);
  transition:color .2s ease;
}
.footer-col ul a:hover{color:var(--accent-cat);}
.footer-bottom{
  border-top:1px solid var(--line-muted);
  padding:20px 0;text-align:center;
  font-size:13px;color:var(--text-faint);
}
/* ===== 移动端导航 ===== */
.hamburger{
  display:none;width:40px;height:40px;
  border-radius:8px;
  align-items:center;justify-content:center;
  border:1px solid var(--line-muted);
  background:rgba(255,255,255,.04);
}
.hamburger svg{width:20px;height:20px;color:var(--text-main);}
.mobile-menu{
  display:none;
  position:fixed;top:64px;right:0;bottom:0;left:0;
  background:rgba(10,14,22,.97);
  z-index:49;
  padding:24px;
  border-top:1px solid var(--line-muted);
}
.mobile-menu.open{display:block;}
.mobile-menu a{
  display:block;padding:14px 0;
  font-size:16px;font-weight:600;color:var(--text-sub);
  border-bottom:1px solid rgba(255,255,255,.05);
}
.mobile-menu a.active{color:var(--accent-cat);}
.mobile-menu a:last-child{border-bottom:none;}
/* ===== 响应式 ===== */
@media screen and (max-width:1023px){
  .hero-inner{flex-direction:column;gap:32px;padding:56px 0 64px;}
  .hero-left{max-width:none;text-align:center;}
  .hero-sub{margin-left:auto;margin-right:auto;}
  .hero-actions,.hero-tags{justify-content:center;}
  .hero-poster{flex:0 0 auto;width:100%;max-width:520px;}
  .metrics-grid{grid-template-columns:repeat(2,1fr);gap:16px;}
  .services-grid{grid-template-columns:repeat(2,1fr);}
  .service-card:nth-child(n){
    grid-column:auto;grid-row:auto;
  }
  .service-card:nth-child(1),
  .service-card:nth-child(2){
    grid-column:span 2;
  }
  .cta-panel{padding:32px;gap:32px;}
  .news-wrap{flex-direction:column;}
  .news-side{flex:0 0 auto;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:24px;}
  .compare-strip{display:none;}
}
@media screen and (max-width:639px){
  .section{padding:56px 0;}
  .hero-inner{padding:40px 0 48px;}
  .hero-left h1{font-size:36px;}
  .hero-sub{font-size:16px;}
  .hero-tags{flex-direction:column;align-items:center;gap:8px;}
  .metrics-grid{grid-template-columns:1fr 1fr;gap:12px;}
  .metric-num{font-size:36px;}
  .services-grid{grid-template-columns:1fr;}
  .service-card:nth-child(1),
  .service-card:nth-child(2){
    grid-column:span 1;
  }
  .compare{flex-direction:column;gap:16px;}
  .compare-col.bad{border-radius:12px;}
  .compare-col.good{border-radius:12px;}
  .cta-panel{grid-template-columns:1fr;padding:24px;}
  .news-wrap{flex-direction:column;}
  .news-list a{white-space:normal;font-size:14px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:16px;}
  .section-head h2{font-size:28px;}
  .main-nav{display:none;}
  .nav-search{display:none;}
  /* 移动搜索图标 */
  .nav-search-mobile{
    display:flex;align-items:center;justify-content:center;
    width:36px;height:36px;border-radius:8px;color:var(--text-sub);
  }
  .nav-search-mobile:hover{color:var(--accent-cat);}
  .hamburger{display:flex;}
  .nav-actions .btn-primary{display:none;}
  /* 移动端搜索层 */
  .mobile-search-layer{
    display:none;position:fixed;top:64px;left:0;right:0;z-index:48;
    background:var(--bg-night);
    border-bottom:1px solid var(--line-muted);
    padding:12px 24px;
  }
  .mobile-search-layer.open{display:block;}
  .mobile-search-layer input{
    width:100%;height:40px;
    background:rgba(255,255,255,.05);
    border:1px solid rgba(255,255,255,.1);
    border-radius:8px;
    padding:0 16px;color:var(--text-main);
    outline:none;
  }
  .mobile-search-layer input:focus{border-color:var(--accent-cat);}
}
@media screen and (min-width:640px){
  .nav-search-mobile{display:none;}
  .mobile-search-layer{display:none !important;}
  .mobile-menu{display:none !important;}
}
/* 移动端菜单打开时 body 锁定 */
body.lock{overflow:hidden;}

/* roulang page: category1 */
:root{
  --bg-night:#0a0e16;
  --bg-surface:#151b26;
  --bg-surface-2:#1a1226;
  --bg-page-footer:#070a10;
  --accent-cat:#e8a33d;
  --accent-purple:#8b5cf6;
  --text-main:#e5e9ef;
  --text-sub:#9aa4b2;
  --text-faint:#6b7686;
  --line-muted:rgba(255,255,255,.08);
  --danger:#f87171;
  --success:#34d399;
  --shadow-card:0 8px 30px rgba(0,0,0,.35);
  --shadow-hover:0 12px 40px rgba(232,163,61,.08);
  --radius:12px;
  --radius-btn:8px;
  --radius-pill:999px;
}
*{box-sizing:border-box;margin:0;padding:0;}
html{scroll-behavior:smooth;overflow-x:hidden;}
body{
  font-family:system-ui,-apple-system,"PingFang SC","Microsoft YaHei","Noto Sans SC",sans-serif;
  background:var(--bg-night);
  color:var(--text-main);
  font-size:16px;
  line-height:1.7;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
a{color:inherit;text-decoration:none;transition:color .2s ease;}
img{max-width:100%;display:block;}
button{font-family:inherit;cursor:pointer;border:none;background:none;color:inherit;}
input,select,textarea{font-family:inherit;font-size:16px;}
.container{max-width:1200px;margin:0 auto;padding:0 24px;}
.section{padding:96px 0;}
.section-head{max-width:680px;margin-bottom:48px;}
.section-head .section-tag{display:inline-block;font-size:13px;font-weight:600;letter-spacing:.04em;color:var(--accent-cat);margin-bottom:10px;}
.section-head h2{font-size:40px;font-weight:700;line-height:1.2;letter-spacing:-.01em;color:var(--text-main);margin-bottom:8px;}
.section-head h2::after{content:"";display:block;width:40px;height:4px;border-radius:2px;background:var(--accent-cat);margin-top:12px;}
.section-head p{color:var(--text-sub);font-size:16px;line-height:1.7;margin-top:14px;}

.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:6px;
  font-weight:700;border-radius:var(--radius-btn);
  transition:all .2s ease;cursor:pointer;text-align:center;line-height:1.2;
}
.btn-primary{background:var(--accent-cat);color:#131313;padding:12px 28px;font-size:15px;}
.btn-primary:hover{background:#f0b054;box-shadow:0 6px 20px rgba(232,163,61,.25);}
.btn-primary:active{transform:translateY(1px);}
.btn-primary:focus-visible{outline:3px solid rgba(232,163,61,.5);outline-offset:2px;}
.btn-secondary{background:transparent;color:var(--accent-purple);border:1px solid var(--accent-purple);padding:12px 28px;font-size:15px;}
.btn-secondary:hover{background:rgba(139,92,246,.15);}
.btn-secondary:active{transform:translateY(1px);}
.btn-secondary:focus-visible{outline:3px solid rgba(139,92,246,.4);outline-offset:2px;}
.btn-ghost{color:var(--text-sub);padding:8px 4px;font-size:14px;background:none;}
.btn-ghost:hover{color:var(--text-main);}
.btn-ghost .arrow{display:inline-block;transition:transform .2s ease;}
.btn-ghost:hover .arrow{transform:translateX(4px);}
.btn-sm{padding:8px 18px;font-size:13px;}
.btn-block{width:100%;}

.site-header{
  position:sticky;top:0;z-index:50;
  background:rgba(10,14,22,.85);
  -webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);
  border-bottom:1px solid var(--line-muted);
}
.nav-container{display:flex;align-items:center;justify-content:space-between;height:64px;gap:20px;}
.brand{display:flex;align-items:center;gap:10px;font-size:20px;font-weight:800;letter-spacing:-.01em;color:var(--text-main);flex-shrink:0;}
.brand svg{width:28px;height:28px;flex-shrink:0;}
.main-nav{display:flex;align-items:center;gap:4px;flex:1;justify-content:center;}
.nav-link{
  position:relative;padding:8px 14px;font-size:14px;color:var(--text-sub);
  border-radius:8px;transition:color .2s ease,background .2s ease;
}
.nav-link:hover{color:var(--text-main);background:rgba(255,255,255,.04);}
.nav-link.active{color:var(--text-main);font-weight:600;}
.nav-link.active::after{
  content:"";position:absolute;left:14px;right:14px;bottom:2px;
  height:2px;border-radius:1px;background:var(--accent-cat);
}
.nav-actions{display:flex;align-items:center;gap:8px;flex-shrink:0;}
.nav-search{
  display:flex;align-items:center;gap:6px;
  background:rgba(255,255,255,.05);
  border:1px solid rgba(255,255,255,.08);
  border-radius:var(--radius-pill);
  padding:6px 14px;width:180px;
  transition:width .25s ease,border-color .2s ease,box-shadow .2s ease;
}
.nav-search:focus-within{
  width:260px;
  border-color:var(--accent-cat);
  box-shadow:0 0 0 3px rgba(232,163,61,.15);
}
.nav-search .search-prefix{color:var(--text-faint);font-size:13px;flex-shrink:0;}
.nav-search input{background:transparent;border:none;outline:none;color:var(--text-main);font-size:13px;width:100%;}
.nav-search input::placeholder{color:var(--text-faint);}
.icon-btn{
  width:36px;height:36px;display:flex;align-items:center;justify-content:center;
  border-radius:8px;color:var(--text-sub);transition:color .2s ease,background .2s ease;
}
.icon-btn:hover{color:var(--accent-cat);background:rgba(232,163,61,.08);}
.icon-btn svg{width:20px;height:20px;}
.nav-burger{display:none;width:36px;height:36px;align-items:center;justify-content:center;border-radius:8px;color:var(--text-sub);}
.nav-burger:hover{color:var(--accent-cat);background:rgba(255,255,255,.05);}
.nav-burger svg{width:22px;height:22px;}
.mobile-only{display:none;}

.mobile-drawer{
  display:none;
  background:rgba(10,14,22,.98);
  border-bottom:1px solid var(--line-muted);
  padding:12px 24px 20px;
}
.mobile-drawer.open{display:block;}
.mobile-drawer nav{display:flex;flex-direction:column;}
.mobile-drawer nav a{padding:12px 4px;font-size:15px;color:var(--text-sub);border-bottom:1px solid rgba(255,255,255,.05);}
.mobile-drawer nav a:hover{color:var(--text-main);}
.mobile-drawer nav a.active{color:var(--accent-cat);font-weight:600;}
.mobile-search-layer{display:none;background:rgba(10,14,22,.98);border-bottom:1px solid var(--line-muted);padding:12px 0;}
.mobile-search-layer.open{display:block;}
.mobile-search-layer .container{display:flex;gap:10px;align-items:center;}
.mobile-search-layer input{
  flex:1;background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.12);
  border-radius:var(--radius-pill);padding:10px 18px;color:var(--text-main);outline:none;
}
.mobile-search-layer input:focus{border-color:var(--accent-cat);}
.mobile-search-layer .close-search{width:36px;height:36px;color:var(--text-sub);font-size:22px;flex-shrink:0;}
.mobile-search-layer .close-search:hover{color:var(--accent-cat);}

.category-hero{position:relative;overflow:hidden;background:var(--bg-night);}
.hero-bg{
  position:absolute;inset:0;
  background-image:url('/assets/images/backpic/back-4.jpg');
  background-size:cover;background-position:center;
  opacity:.35;
}
.hero-bg::after{
  content:"";position:absolute;inset:0;
  background:
    radial-gradient(ellipse at 80% 15%,rgba(139,92,246,.3),transparent 55%),
    radial-gradient(ellipse at 15% 85%,rgba(232,163,61,.18),transparent 60%),
    linear-gradient(135deg,rgba(10,14,22,.92),rgba(10,14,22,.75) 50%,rgba(10,14,22,.96));
}
.hero-inner{position:relative;z-index:2;padding:72px 0 88px;}
.breadcrumb{
  display:flex;align-items:center;gap:8px;
  color:var(--text-faint);font-size:13px;margin-bottom:24px;flex-wrap:wrap;
}
.breadcrumb a{transition:color .2s ease;}
.breadcrumb a:hover{color:var(--accent-cat);}
.breadcrumb .sep{color:var(--text-faint);opacity:.6;}
.breadcrumb .current{color:var(--text-sub);}
.hero-copy h1{font-size:48px;font-weight:800;line-height:1.15;letter-spacing:-.01em;color:var(--text-main);}
.hero-copy h1 .gradient{
  background:linear-gradient(120deg,var(--accent-cat),#f6cf7a);
  -webkit-background-clip:text;background-clip:text;
  -webkit-text-fill-color:transparent;color:transparent;
}
.hero-sub{font-size:17px;line-height:1.7;color:var(--text-sub);max-width:480px;margin:18px 0 28px;}
.stat-row{display:flex;flex-wrap:wrap;gap:32px;margin-top:8px;}
.stat-item .stat-num{
  font-family:"DIN Alternate","Bebas Neue",sans-serif;
  font-size:40px;font-weight:700;line-height:1;color:var(--text-main);
}
.stat-item .stat-num em{font-style:normal;color:var(--accent-cat);}
.stat-item .stat-label{font-size:13px;color:var(--text-faint);margin-top:6px;}

.crowdfund-panel{
  position:relative;
  background:linear-gradient(135deg,rgba(21,27,38,.96),rgba(26,18,38,.96));
  border:1px solid rgba(232,163,61,.28);
  border-radius:16px;
  padding:28px;
  box-shadow:var(--shadow-card);
}
.crowdfund-head{display:flex;align-items:center;justify-content:space-between;gap:12px;flex-wrap:wrap;}
.crowdfund-title{font-size:18px;font-weight:700;color:var(--text-main);}
.badge-live{
  display:inline-flex;align-items:center;gap:6px;
  background:rgba(139,92,246,.15);border:1px solid rgba(139,92,246,.4);
  color:#c4b5fd;font-size:12px;font-weight:600;
  padding:4px 12px;border-radius:var(--radius-pill);
}
.badge-live::before{
  content:"";width:6px;height:6px;border-radius:50%;
  background:var(--accent-purple);box-shadow:0 0 8px rgba(139,92,246,.8);
}
.crowdfund-desc{font-size:14px;color:var(--text-sub);line-height:1.6;margin-top:14px;}
.progress-wrap{display:flex;align-items:center;gap:24px;margin:20px 0 18px;}
.progress-ring{position:relative;width:120px;height:120px;flex-shrink:0;}
.progress-ring svg{width:100%;height:100%;}
.ring-center{
  position:absolute;inset:0;
  display:flex;flex-direction:column;align-items:center;justify-content:center;
}
.ring-center strong{font-size:28px;font-weight:800;color:var(--accent-cat);line-height:1;}
.ring-center span{font-size:12px;color:var(--text-faint);margin-top:6px;}
.progress-info{flex:1;min-width:0;}
.progress-info p{font-size:14px;color:var(--text-sub);margin-bottom:8px;}
.progress-bar{height:6px;border-radius:3px;background:rgba(255,255,255,.08);overflow:hidden;}
.progress-bar i{
  display:block;height:100%;
  background:linear-gradient(90deg,var(--accent-cat),var(--accent-purple));
  border-radius:3px;width:47%;
}
.pledge-list{display:flex;flex-direction:column;gap:8px;margin-top:6px;}
.pledge-item{
  display:flex;align-items:center;gap:12px;
  background:rgba(255,255,255,.04);border:1px solid transparent;
  border-radius:10px;padding:10px 12px;
  transition:border-color .2s ease,background .2s ease;
}
.pledge-item:hover{border-color:rgba(232,163,61,.35);background:rgba(232,163,61,.05);}
.pledge-item.featured{border-color:rgba(232,163,61,.4);background:rgba(232,163,61,.06);}
.pledge-price{
  flex-shrink:0;min-width:64px;text-align:center;
  background:rgba(232,163,61,.12);color:var(--accent-cat);
  font-size:14px;font-weight:800;border-radius:8px;padding:6px 8px;
}
.pledge-info{min-width:0;}
.pledge-info strong{display:block;font-size:14px;color:var(--text-main);}
.pledge-info span{font-size:12px;color:var(--text-faint);}
.crowdfund-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:20px;}
.crowdfund-foot{
  display:flex;align-items:center;justify-content:space-between;gap:10px;
  margin-top:16px;font-size:13px;color:var(--text-faint);flex-wrap:wrap;
}
.crowdfund-foot .support-count{color:var(--accent-cat);}

.filter-section{padding:56px 0 8px;}
.tag-filter{
  display:flex;gap:10px;overflow-x:auto;
  padding:4px 2px 12px;
  scrollbar-width:none;
  -webkit-overflow-scrolling:touch;
}
.tag-filter::-webkit-scrollbar{display:none;}
.filter-pill{
  flex-shrink:0;padding:9px 22px;border-radius:var(--radius-pill);
  font-size:14px;color:var(--text-sub);
  background:rgba(255,255,255,.04);
  border:1px solid var(--line-muted);
  transition:all .2s ease;cursor:pointer;white-space:nowrap;
}
.filter-pill:hover{color:var(--text-main);border-color:rgba(139,92,246,.5);}
.filter-pill.active{
  background:var(--accent-cat);color:#131313;
  border-color:var(--accent-cat);font-weight:700;
}

.video-section{padding-bottom:96px;}
.card-video{
  background:var(--bg-surface);
  border-radius:var(--radius);
  overflow:hidden;
  border:1px solid transparent;
  transition:transform .3s ease,border-color .3s ease,box-shadow .3s ease;
  height:100%;display:flex;flex-direction:column;
}
.card-video:hover{
  transform:translateY(-2px);
  border-color:rgba(232,163,61,.3);
  box-shadow:var(--shadow-hover);
}
.card-cover{position:relative;aspect-ratio:16/9;overflow:hidden;background:var(--bg-surface-2);}
.card-cover img{width:100%;height:100%;object-fit:cover;transition:transform .4s ease;}
.card-video:hover .card-cover img{transform:scale(1.05);}
.duration-badge{
  position:absolute;top:12px;left:12px;
  background:rgba(0,0,0,.72);color:#fff;
  font-size:12px;font-weight:600;
  padding:3px 9px;border-radius:6px;z-index:2;
}
.play-mask{
  position:absolute;inset:0;
  display:flex;align-items:center;justify-content:center;
  background:rgba(10,14,22,.38);
  opacity:0;transition:opacity .3s ease;z-index:1;
}
.card-video:hover .play-mask{opacity:1;}
.play-btn{
  width:52px;height:52px;border-radius:50%;
  background:rgba(232,163,61,.92);
  display:flex;align-items:center;justify-content:center;
  transition:transform .3s ease,box-shadow .3s ease;
}
.card-video:hover .play-btn{transform:scale(1.1);box-shadow:0 0 18px rgba(232,163,61,.5);}
.play-btn svg{width:22px;height:22px;fill:#131313;margin-left:2px;}
.card-body{padding:16px;flex:1;display:flex;flex-direction:column;}
.card-tag{
  display:inline-block;
  background:rgba(139,92,246,.12);color:#c4b5fd;
  font-size:12px;font-weight:600;
  padding:2px 10px;border-radius:var(--radius-pill);
  margin-bottom:10px;align-self:flex-start;
}
.card-title{
  font-size:16px;font-weight:700;line-height:1.45;color:var(--text-main);
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;
  overflow:hidden;min-height:46px;
}
.card-meta{
  display:flex;align-items:center;gap:10px;
  margin-top:auto;padding-top:14px;
  font-size:13px;color:var(--text-faint);
}
.avatar{
  width:26px;height:26px;border-radius:50%;
  background:linear-gradient(135deg,var(--accent-purple),var(--accent-cat));
  flex-shrink:0;
  display:flex;align-items:center;justify-content:center;
  font-size:12px;font-weight:700;color:#fff;
}
.card-meta .views{margin-left:auto;}

.pagination{display:flex;justify-content:center;align-items:center;gap:10px;margin-top:52px;}
.page-btn{
  min-width:40px;height:40px;
  display:inline-flex;align-items:center;justify-content:center;
  border-radius:8px;color:var(--text-sub);
  border:1px solid var(--line-muted);
  background:transparent;font-weight:600;
  transition:all .2s ease;cursor:pointer;font-size:15px;
}
.page-btn:hover{border-color:var(--accent-purple);color:var(--text-main);}
.page-btn.current{background:var(--accent-cat);color:#131313;border-color:var(--accent-cat);cursor:default;}
.page-arrow{font-size:18px;}

.related-card{
  position:relative;border-radius:var(--radius);overflow:hidden;
  aspect-ratio:4/3;display:flex;align-items:flex-end;
  border:1px solid var(--line-muted);
}
.related-card img{
  position:absolute;inset:0;width:100%;height:100%;
  object-fit:cover;transition:transform .4s ease;
}
.related-card:hover img{transform:scale(1.05);}
.related-card::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(10,14,22,0) 20%,rgba(10,14,22,.55) 60%,rgba(10,14,22,.94));
}
.related-info{position:relative;z-index:2;padding:20px 20px 22px;}
.related-title{
  display:block;font-size:18px;font-weight:700;color:var(--text-main);
  margin-bottom:6px;
}
.related-desc{display:block;font-size:14px;color:var(--text-sub);line-height:1.6;}
.related-go{
  display:inline-flex;align-items:center;gap:6px;
  color:var(--accent-cat);font-size:13px;font-weight:600;
  margin-top:10px;transition:gap .2s ease;
}
.related-go:hover{gap:10px;}

.faq-list{max-width:860px;margin:0 auto;}
.faq-item{
  background:rgba(255,255,255,.03);
  border:1px solid var(--line-muted);
  border-radius:10px;
  margin-bottom:12px;
  overflow:hidden;
  transition:background .3s ease,border-color .3s ease;
}
.faq-item[open]{background:rgba(255,255,255,.04);border-color:rgba(232,163,61,.25);}
.faq-item summary{
  list-style:none;
  display:flex;align-items:center;gap:14px;
  padding:18px 20px;cursor:pointer;
  font-weight:600;font-size:16px;color:var(--text-main);
  transition:color .2s ease;user-select:none;
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary:hover{color:var(--accent-cat);}
.faq-item summary::before{content:"☾";color:var(--accent-purple);font-size:15px;flex-shrink:0;}
.faq-item summary::after{
  content:"+";margin-left:auto;
  color:var(--text-sub);font-size:22px;font-weight:400;
  transition:transform .3s ease,color .2s ease;
}
.faq-item summary:hover::after{color:var(--accent-cat);}
.faq-item[open] summary::after{transform:rotate(45deg);color:var(--accent-cat);}
.faq-item .faq-answer{padding:0 20px 20px 50px;color:var(--text-sub);font-size:15px;line-height:1.75;}

.cta-section{padding-bottom:96px;}
.cta-panel{
  background:linear-gradient(135deg,var(--bg-surface),var(--bg-surface-2));
  border:1px solid rgba(232,163,61,.25);
  border-radius:16px;
  padding:48px;
  box-shadow:var(--shadow-card);
}
.cta-left .section-tag{
  display:inline-block;font-size:13px;font-weight:600;letter-spacing:.04em;
  color:var(--accent-cat);margin-bottom:10px;
}
.cta-left h2{font-size:36px;font-weight:800;line-height:1.2;color:var(--text-main);margin-bottom:12px;}
.cta-left > p{color:var(--text-sub);font-size:15px;line-height:1.7;margin-bottom:20px;}
.check-list{list-style:none;display:flex;flex-direction:column;gap:12px;margin:0 0 24px;}
.check-list li{display:flex;gap:10px;color:var(--text-sub);font-size:15px;}
.check-list li::before{content:"✓";color:var(--success);font-weight:700;flex-shrink:0;}
.trust-row{display:flex;flex-wrap:wrap;gap:8px;}
.trust-badge{
  background:rgba(255,255,255,.05);
  border:1px solid var(--line-muted);
  border-radius:var(--radius-pill);
  color:var(--text-faint);
  font-size:12px;padding:4px 12px;
}
.cta-form{
  background:rgba(13,17,25,.55);
  border:1px solid rgba(255,255,255,.06);
  border-radius:12px;
  padding:28px;
}
.form-group{margin-bottom:16px;}
.form-group label{display:block;font-size:13px;color:var(--text-sub);margin-bottom:8px;}
.form-group input,.form-group select{
  width:100%;height:44px;
  background:#0d1119;
  border:1px solid rgba(255,255,255,.08);
  border-radius:8px;
  padding:0 14px;
  color:var(--text-main);
  outline:none;
  transition:border-color .2s ease,box-shadow .2s ease;
  appearance:none;
}
.form-group select{
  background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath d='M3 4l3 4 3-4' fill='none' stroke='%236b7686' stroke-width='1.5'/%3E%3C/svg%3E");
  background-repeat:no-repeat;
  background-position:right 14px center;
}
.form-group input:focus,.form-group select:focus{
  border-color:var(--accent-cat);
  box-shadow:0 0 0 3px rgba(232,163,61,.15);
}
.form-group input::placeholder{color:var(--text-faint);}

.site-footer{background:var(--bg-page-footer);border-top:1px solid var(--line-muted);padding-top:64px;}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:40px;padding-bottom:40px;}
.footer-brand .brand{margin-bottom:14px;}
.footer-brand p{color:var(--text-faint);font-size:14px;line-height:1.7;max-width:280px;}
.footer-col h4{font-size:15px;font-weight:700;color:var(--text-main);margin-bottom:16px;}
.footer-col ul{list-style:none;display:flex;flex-direction:column;gap:10px;}
.footer-col ul a{color:var(--text-sub);font-size:14px;transition:color .2s ease;}
.footer-col ul a:hover{color:var(--accent-cat);}
.footer-bottom{border-top:1px solid var(--line-muted);padding:20px 0;color:var(--text-faint);font-size:13px;}

@media screen and (max-width:1023px){
  .main-nav{display:none;}
  .nav-burger{display:flex;}
  .nav-search{width:160px;}
  .nav-search:focus-within{width:220px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
  .hero-inner{padding:56px 0 72px;}
}
@media screen and (max-width:639px){
  .section{padding:56px 0;}
  .section-head h2{font-size:28px;}
  .hero-inner{padding:44px 0 56px;}
  .hero-copy h1{font-size:34px;}
  .hero-sub{font-size:15px;}
  .stat-row{gap:20px;}
  .stat-item{flex:1 1 40%;}
  .stat-item .stat-num{font-size:30px;}
  .crowdfund-panel{padding:20px;}
  .progress-wrap{flex-direction:column;text-align:center;}
  .progress-info{width:100%;}
  .crowdfund-actions .btn{width:100%;}
  .cta-panel{padding:24px;}
  .cta-left h2{font-size:28px;}
  .footer-grid{grid-template-columns:1fr;gap:28px;}
  .nav-actions .nav-search{display:none;}
  .nav-actions .header-cta{display:none;}
  .nav-search-toggle{display:flex;}
  .mobile-only{display:flex;}
}