/* roulang page: index */
:root{
  --bg-950:#070D18;
  --bg-900:#0B1526;
  --panel:#101C2F;
  --panel-glass:rgba(16,28,47,.62);
  --line:rgba(255,255,255,.10);
  --line-strong:rgba(255,255,255,.18);
  --text:#F3F7FF;
  --muted:#A9B7CC;
  --faint:#718096;
  --primary:#39E6D0;
  --primary-strong:#13C9B2;
  --secondary:#B388FF;
  --accent:#FFB86B;
  --danger:#FF7A7A;
  --radius-lg:24px;
  --radius-md:16px;
  --radius-sm:12px;
  --shadow-card:0 24px 60px rgba(0,0,0,.35), inset 0 1px rgba(255,255,255,.06);
  --shadow-glow:0 0 0 1px rgba(57,230,208,.25), 0 0 24px rgba(57,230,208,.28);
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC",-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;
  background:var(--bg-950);
  color:var(--text);
  font-size:16px;
  line-height:1.8;
  overflow-x:hidden;
}
body::before{
  content:"";position:fixed;inset:0;pointer-events:none;z-index:0;
  background-image:radial-gradient(rgba(255,255,255,.07) 1px, transparent 1px);
  background-size:24px 24px;
  opacity:.55;
}
body::after{
  content:"";position:fixed;inset:0;pointer-events:none;z-index:0;
  background:
    radial-gradient(720px 460px at 8% -6%, rgba(57,230,208,.14), transparent 65%),
    radial-gradient(680px 460px at 92% 4%, rgba(179,136,255,.14), transparent 65%);
}
img{max-width:100%;display:block}
a{color:var(--text);text-decoration:none;transition:color .18s ease}
a:hover{color:var(--primary)}
button{font-family:inherit;cursor:pointer}
h1,h2,h3,h4{margin:0;line-height:1.22;font-weight:800;letter-spacing:-.01em}
p{margin:0}
ul{margin:0;padding:0;list-style:none}
:focus-visible{outline:2px solid var(--primary);outline-offset:3px;border-radius:6px}

.page{position:relative;z-index:1}
.container{width:100%;max-width:1240px;margin:0 auto;padding:0 24px}

/* 导航 */
.site-header{position:sticky;top:0;z-index:60;padding-bottom:6px}
.nav-panel{
  display:flex;align-items:center;gap:20px;
  min-height:78px;
  margin-top:16px;padding:12px 18px;
  background:var(--panel-glass);
  backdrop-filter:blur(16px);
  -webkit-backdrop-filter:blur(16px);
  border:1px solid var(--line);
  border-radius:20px;
  box-shadow:0 18px 44px rgba(0,0,0,.42);
}
.brand{display:flex;align-items:center;gap:11px;flex-shrink:0}
.brand-mark{
  width:36px;height:36px;border-radius:11px;display:grid;place-items:center;
  background:linear-gradient(135deg,var(--primary),var(--secondary));
  color:#06121f;font-weight:900;font-size:15px;letter-spacing:0;
  box-shadow:0 0 18px rgba(57,230,208,.35);
  flex-shrink:0;
}
.brand-text{font-size:17px;font-weight:800;letter-spacing:.01em;white-space:nowrap}
.nav-links{display:flex;align-items:center;gap:6px;margin-left:auto}
.nav-link{
  position:relative;
  display:inline-flex;align-items:center;
  padding:9px 14px;border-radius:12px;
  font-size:14.5px;color:var(--muted);
  border:1px solid transparent;
  transition:background .18s ease,color .18s ease,border-color .18s ease;
  white-space:nowrap;
}
.nav-link:hover{color:var(--text);background:rgba(255,255,255,.055);border-color:var(--line)}
.nav-link.active{
  color:var(--text);
  background:rgba(57,230,208,.10);
  border-color:rgba(57,230,208,.35);
}
.nav-link.active::before{
  content:"";width:6px;height:6px;border-radius:50%;
  background:var(--primary);box-shadow:0 0 10px var(--primary);
  margin-right:8px;
}
.nav-link.active::after{
  content:"";position:absolute;left:16px;right:16px;bottom:4px;height:2px;
  background:var(--primary);border-radius:2px;opacity:.85;
}
.nav-actions{display:flex;align-items:center;gap:10px;flex-shrink:0}
.nav-toggle{
  display:none;align-items:center;justify-content:center;
  width:44px;height:44px;border-radius:12px;
  background:rgba(255,255,255,.06);border:1px solid var(--line);color:var(--text);
  margin-left:auto;
}
.nav-toggle span{display:block;width:18px;height:2px;background:currentColor;position:relative}
.nav-toggle span::before,.nav-toggle span::after{
  content:"";position:absolute;left:0;width:18px;height:2px;background:currentColor;
}
.nav-toggle span::before{top:-6px}
.nav-toggle span::after{top:6px}

.mobile-drawer{
  display:none;
  margin:10px 24px 0;
  padding:16px;
  background:var(--panel-glass);
  backdrop-filter:blur(16px);
  border:1px solid var(--line);
  border-radius:18px;
  box-shadow:0 20px 44px rgba(0,0,0,.45);
}
.mobile-drawer.open{display:block}
.drawer-grid{display:grid;grid-template-columns:1fr 1fr;gap:10px}
.drawer-link{
  display:block;padding:14px 14px;border-radius:12px;
  background:rgba(255,255,255,.05);border:1px solid var(--line);
  font-size:14.5px;color:var(--muted);
}
.drawer-link.active{color:var(--text);border-color:rgba(57,230,208,.4);background:rgba(57,230,208,.10)}
.drawer-cta{margin-top:12px}
.drawer-cta .btn{width:100%}

/* 按钮 */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:46px;padding:0 22px;border-radius:14px;
  font-size:15px;font-weight:700;border:1px solid transparent;
  transition:transform .16s ease,box-shadow .2s ease,background .2s ease,border-color .2s ease,color .2s ease;
  text-align:center;line-height:1.2;
}
.btn .arrow{transition:transform .2s ease}
.btn:hover .arrow{transform:translateX(3px)}
.btn-primary{
  background:linear-gradient(135deg,var(--primary),var(--primary-strong));
  color:#04161c;
  box-shadow:var(--shadow-glow);
}
.btn-primary:hover{
  color:#04161c;
  box-shadow:0 0 0 1px rgba(57,230,208,.4),0 0 36px rgba(57,230,208,.42);
  transform:translateY(-1px);
}
.btn-primary:active{transform:translateY(1px)}
.btn-ghost{
  background:rgba(255,255,255,.05);
  border-color:var(--line-strong);
  color:var(--text);
  backdrop-filter:blur(10px);
}
.btn-ghost:hover{border-color:rgba(57,230,208,.55);color:var(--text);background:rgba(57,230,208,.08)}
.btn-sm{min-height:40px;padding:0 16px;font-size:14px;border-radius:12px}

/* Hero */
.hero{position:relative;overflow:hidden;border-bottom:1px solid var(--line);margin-top:8px}
.hero-bg{
  position:absolute;inset:0;
  background-size:cover;background-position:center;
  opacity:.5;
}
.hero-overlay{
  position:absolute;inset:0;
  background:linear-gradient(118deg,rgba(7,13,24,.96) 0%,rgba(7,13,24,.84) 46%,rgba(7,13,24,.56) 100%);
}
.hero-glow{
  position:absolute;inset:0;pointer-events:none;
  background:
    radial-gradient(560px 380px at 12% 18%, rgba(57,230,208,.18), transparent 68%),
    radial-gradient(520px 360px at 88% 78%, rgba(179,136,255,.20), transparent 68%);
}
.hero-inner{
  position:relative;z-index:2;
  display:grid;grid-template-columns:minmax(0,1.35fr) minmax(0,1fr);
  gap:44px;align-items:center;
  padding:76px 0 84px;
}
.eyebrow{
  display:inline-flex;align-items:center;gap:9px;
  padding:7px 15px;border-radius:999px;
  background:rgba(57,230,208,.10);
  border:1px solid rgba(57,230,208,.32);
  font-size:13px;color:var(--primary);font-weight:600;
  letter-spacing:.02em;
}
.eyebrow i{width:7px;height:7px;border-radius:50%;background:var(--primary);box-shadow:0 0 10px var(--primary);display:block}
.hero h1{
  margin-top:22px;
  font-size:clamp(32px,4.3vw,54px);
  line-height:1.16;
  letter-spacing:-.015em;
}
.hero h1 em{font-style:normal;color:var(--primary);text-shadow:0 0 26px rgba(57,230,208,.35)}
.hero-sub{
  margin-top:20px;max-width:56ch;
  color:var(--muted);font-size:16.5px;line-height:1.85;
}
.hero-cta{display:flex;flex-wrap:wrap;gap:14px;margin-top:30px}
.hero-chips{display:flex;flex-wrap:wrap;gap:10px;margin-top:30px}
.chip{
  display:inline-flex;align-items:center;gap:8px;
  padding:8px 15px;border-radius:999px;
  background:var(--panel-glass);
  border:1px solid var(--line);
  backdrop-filter:blur(10px);
  font-size:13px;color:var(--muted);
}
.chip b{color:var(--text);font-weight:700}

.status-card{
  background:var(--panel-glass);
  backdrop-filter:blur(18px);
  -webkit-backdrop-filter:blur(18px);
  border:1px solid var(--line);
  border-radius:var(--radius-lg);
  padding:26px;
  box-shadow:var(--shadow-card);
  position:relative;
  overflow:hidden;
}
.status-card::before{
  content:"";position:absolute;top:0;left:0;width:100%;height:3px;
  background:linear-gradient(90deg,var(--primary),var(--secondary),transparent);
}
.status-head{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:18px}
.status-title{font-size:16px;font-weight:800}
.status-badge{
  font-size:12px;padding:4px 10px;border-radius:999px;
  background:rgba(57,230,208,.14);color:var(--primary);
  border:1px solid rgba(57,230,208,.3);font-weight:600;
}
.check-list li{
  display:flex;align-items:flex-start;gap:12px;
  padding:12px 0;border-bottom:1px dashed rgba(255,255,255,.08);
  font-size:14.5px;color:var(--muted);
}
.check-list li:last-child{border-bottom:0;padding-bottom:0}
.check-list li b{display:block;color:var(--text);font-weight:700;margin-bottom:2px;font-size:14.5px}
.check-dot{
  flex-shrink:0;width:20px;height:20px;border-radius:50%;
  border:1px solid rgba(57,230,208,.5);
  display:grid;place-items:center;margin-top:3px;
  font-size:11px;color:var(--primary);font-weight:700;
}
.status-foot{
  margin-top:18px;padding-top:16px;border-top:1px solid var(--line);
  font-size:12.5px;color:var(--faint);line-height:1.7;
}

/* 区块通用 */
.section{padding:88px 0}
.section-tight{padding:64px 0}
.sec-head{
  display:flex;align-items:flex-end;justify-content:space-between;gap:36px;
  margin-bottom:42px;flex-wrap:wrap;
}
.sec-tag{
  display:inline-block;font-size:12.5px;letter-spacing:.12em;
  color:var(--primary);font-weight:700;margin-bottom:12px;
  padding-left:12px;position:relative;
}
.sec-tag::before{
  content:"";position:absolute;left:0;top:50%;transform:translateY(-50%);
  width:4px;height:14px;border-radius:2px;background:var(--primary);
}
.sec-head h2{font-size:clamp(24px,3vw,34px);max-width:24ch}
.sec-desc{color:var(--muted);font-size:15px;max-width:44ch;line-height:1.85}

/* 故事区 */
.story-grid{display:grid;grid-template-columns:minmax(0,.9fr) minmax(0,1.1fr);gap:32px;align-items:start}
.step-block{
  position:relative;padding:24px 26px 24px 26px;
  background:var(--panel);
  border:1px solid var(--line);
  border-radius:var(--radius-md);
  margin-bottom:18px;
  transition:border-color .2s ease,transform .2s ease;
}
.step-block:hover{border-color:rgba(57,230,208,.32);transform:translateY(-3px)}
.step-num{
  display:inline-block;font-size:12.5px;font-weight:800;letter-spacing:.1em;
  color:var(--primary);margin-bottom:10px;
}
.step-block h3{font-size:19px;margin-bottom:10px}
.step-block p{color:var(--muted);font-size:14.8px;line-height:1.85}
.story-media{position:relative;border-radius:var(--radius-lg);overflow:hidden;border:1px solid var(--line);box-shadow:var(--shadow-card)}
.story-media img{width:100%;height:100%;object-fit:cover;aspect-ratio:4/3;filter:saturate(1.05)}
.story-media::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(7,13,24,0) 40%,rgba(7,13,24,.88) 100%);
}
.media-cap{
  position:absolute;left:0;right:0;bottom:0;z-index:2;
  padding:22px 24px;font-size:14px;color:var(--muted);line-height:1.8;
}
.media-cap b{color:var(--text);display:block;margin-bottom:4px;font-size:15px}

/* 精选卡 7/5 */
.feature-grid{display:grid;grid-template-columns:minmax(0,1.35fr) minmax(0,1fr);gap:24px}
.card{
  position:relative;display:block;overflow:hidden;
  background:var(--panel);
  border:1px solid var(--line);
  border-radius:var(--radius-lg);
  transition:transform .2s ease,border-color .2s ease,box-shadow .2s ease;
}
.card:hover{
  transform:translateY(-4px);
  border-color:rgba(57,230,208,.36);
  box-shadow:0 30px 64px rgba(0,0,0,.5);
  color:var(--text);
}
.card-media{position:relative;overflow:hidden}
.card-media img{width:100%;height:100%;object-fit:cover;transition:transform .45s ease}
.card:hover .card-media img{transform:scale(1.04)}
.card-media::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(7,13,24,.05) 30%,rgba(10,18,32,.92) 100%);
}
.card-body{padding:24px 26px 26px}
.badge{
  display:inline-flex;align-items:center;gap:6px;
  padding:4px 11px;border-radius:999px;
  font-size:12px;font-weight:700;letter-spacing:.02em;
  background:rgba(179,136,255,.14);color:#CDB0FF;
  border:1px solid rgba(179,136,255,.32);
}
.badge-teal{background:rgba(57,230,208,.13);color:var(--primary);border-color:rgba(57,230,208,.3)}
.badge-amber{background:rgba(255,184,107,.13);color:var(--accent);border-color:rgba(255,184,107,.3)}
.card h3{font-size:20px;margin:14px 0 10px}
.feature-card .card-media img{aspect-ratio:16/10}
.feature-card h3{font-size:23px}
.card p{color:var(--muted);font-size:14.6px;line-height:1.82}
.clamp-2{display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.clamp-3{display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden}
.card-more{
  display:inline-flex;align-items:center;gap:6px;
  margin-top:16px;font-size:14px;font-weight:700;color:var(--primary);
}
.card-more .arrow{transition:transform .2s ease}
.card:hover .card-more .arrow{transform:translateX(4px)}
.side-stack{display:grid;grid-template-rows:1fr 1fr;gap:24px}
.mini-card{display:flex;gap:16px;padding:18px;align-items:center}
.mini-card .mini-media{
  width:120px;flex-shrink:0;border-radius:14px;overflow:hidden;border:1px solid var(--line);
  position:relative;
}
.mini-card .mini-media img{width:100%;height:100%;object-fit:cover;aspect-ratio:1/1}
.mini-card .mini-body h3{font-size:17px;margin:10px 0 8px}
.mini-card .mini-body p{font-size:13.8px}

/* 最新信息 */
.post-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:20px}
.post-card{
  display:block;padding:24px 26px;
  background:var(--panel);
  border:1px solid var(--line);
  border-radius:var(--radius-md);
  position:relative;
  transition:transform .2s ease,border-color .2s ease,box-shadow .2s ease,background .2s ease;
}
.post-card:nth-child(even){margin-top:26px}
.post-card:hover{
  transform:translateY(-4px);
  border-color:rgba(57,230,208,.34);
  background:#122136;
  box-shadow:0 24px 54px rgba(0,0,0,.44);
  color:var(--text);
}
.post-meta{display:flex;align-items:center;gap:12px;flex-wrap:wrap;margin-bottom:14px}
.post-time{font-size:12.5px;color:var(--faint);letter-spacing:.02em}
.post-card h3{font-size:18px;margin-bottom:10px}
.post-card p{color:var(--muted);font-size:14.4px;line-height:1.8}
.post-foot{
  display:flex;align-items:center;justify-content:space-between;
  margin-top:16px;padding-top:14px;border-top:1px dashed rgba(255,255,255,.09);
  font-size:13px;color:var(--faint);
}
.post-foot .go{color:var(--primary);font-weight:700;display:inline-flex;align-items:center;gap:6px}
.empty-state{
  grid-column:1 / -1;
  padding:52px 24px;text-align:center;
  background:var(--panel);
  border:1px dashed var(--line-strong);
  border-radius:var(--radius-md);
  color:var(--muted);font-size:15px;
}
.empty-state .empty-icon{
  width:46px;height:46px;border-radius:14px;margin:0 auto 16px;
  display:grid;place-items:center;
  background:rgba(57,230,208,.1);border:1px solid rgba(57,230,208,.28);
  color:var(--primary);font-size:18px;font-weight:800;
}

/* 数据与背书 */
.stats-bar{
  display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:16px;
  margin-bottom:26px;
}
.stat{
  padding:22px 24px;border-radius:var(--radius-md);
  background:var(--panel-glass);
  border:1px solid var(--line);
  backdrop-filter:blur(12px);
}
.stat .num{font-size:30px;font-weight:800;color:var(--primary);line-height:1.1;letter-spacing:-.02em}
.stat .num small{font-size:15px;font-weight:700;color:var(--muted);margin-left:4px}
.stat .label{font-size:13.5px;color:var(--muted);margin-top:8px}
.quote-row{display:flex;gap:18px;overflow-x:auto;padding:6px 2px 14px;scrollbar-width:thin}
.quote-card{
  flex:0 0 320px;padding:24px;
  background:var(--panel);
  border:1px solid var(--line);
  border-radius:var(--radius-md);
}
.quote-card .q-mark{font-size:26px;color:var(--secondary);line-height:1;font-weight:800}
.quote-card p{color:var(--muted);font-size:14.5px;line-height:1.85;margin-top:12px}
.quote-card .q-by{margin-top:16px;font-size:12.5px;color:var(--faint);display:flex;align-items:center;gap:8px}
.quote-card .q-by span{width:6px;height:6px;border-radius:50%;background:var(--primary);display:block}

/* FAQ */
.faq-list{display:grid;gap:14px}
.faq-item{
  background:var(--panel-glass);
  backdrop-filter:blur(10px);
  border:1px solid var(--line);
  border-radius:var(--radius-md);
  overflow:hidden;
  transition:border-color .2s ease,background .2s ease;
}
.faq-item[open]{border-color:rgba(57,230,208,.34);background:rgba(18,33,54,.85)}
.faq-item summary{
  list-style:none;cursor:pointer;
  display:flex;align-items:center;gap:16px;
  padding:20px 24px;
  font-size:16.5px;font-weight:700;
  color:var(--text);
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary .idx{
  flex-shrink:0;font-size:12.5px;font-weight:800;color:var(--primary);
  letter-spacing:.08em;min-width:24px;
}
.faq-item summary .plus{
  margin-left:auto;flex-shrink:0;width:26px;height:26px;border-radius:8px;
  display:grid;place-items:center;
  border:1px solid var(--line-strong);color:var(--muted);
  font-size:15px;transition:transform .2s ease,color .2s ease,border-color .2s ease;
}
.faq-item[open] summary .plus{transform:rotate(45deg);color:var(--primary);border-color:rgba(57,230,208,.5)}
.faq-body{
  padding:0 24px 22px 64px;
  color:var(--muted);font-size:15px;line-height:1.85;
  border-left:2px solid transparent;
}
.faq-item[open] .faq-body{border-left:2px solid rgba(57,230,208,.5);margin-left:24px;padding-left:40px}

/* CTA */
.cta-panel{
  position:relative;overflow:hidden;
  border-radius:var(--radius-lg);
  border:1px solid var(--line);
  background:linear-gradient(135deg,rgba(19,201,178,.12),rgba(16,28,47,.9) 48%,rgba(179,136,255,.14));
  padding:44px;
  box-shadow:var(--shadow-card);
  display:grid;grid-template-columns:minmax(0,1.1fr) minmax(0,.9fr);
  gap:36px;align-items:center;
}
.cta-panel::before{
  content:"";position:absolute;right:-90px;top:-90px;width:320px;height:320px;border-radius:50%;
  background:radial-gradient(circle,rgba(57,230,208,.24),transparent 68%);
  pointer-events:none;
}
.cta-panel h2{font-size:clamp(23px,2.6vw,30px);margin-bottom:14px}
.cta-panel p{color:var(--muted);font-size:15px;line-height:1.85;max-width:46ch}
.form-field{display:block;margin-bottom:14px}
.form-field span{display:block;font-size:13px;color:var(--muted);margin-bottom:8px;font-weight:600}
.form-field input{
  width:100%;height:48px;padding:0 16px;
  border-radius:var(--radius-sm);
  background:rgba(7,13,24,.7);
  border:1px solid var(--line-strong);
  color:var(--text);font-size:15px;font-family:inherit;
  transition:border-color .2s ease,box-shadow .2s ease;
}
.form-field input::placeholder{color:#5C6B82}
.form-field input:focus{
  outline:none;border-color:rgba(57,230,208,.7);
  box-shadow:0 0 0 3px rgba(57,230,208,.16);
}
.form-help{font-size:12.5px;color:var(--faint);margin-top:10px;line-height:1.7}

/* 页脚 */
.site-footer{
  margin-top:80px;
  border-top:1px solid var(--line);
  background:linear-gradient(180deg,rgba(11,21,38,.7),rgba(7,13,24,.95));
  padding:56px 0 0;
}
.footer-grid{
  display:grid;grid-template-columns:1.5fr .8fr .9fr 1.1fr;gap:36px;
  padding-bottom:44px;
}
.footer-brand .brand{margin-bottom:16px}
.footer-brand p{color:var(--muted);font-size:14px;line-height:1.85;max-width:34ch}
.footer-col h4{font-size:14px;font-weight:800;letter-spacing:.06em;color:var(--text);margin-bottom:16px}
.footer-col li{margin-bottom:10px}
.footer-col a,.footer-col span{font-size:14px;color:var(--muted)}
.footer-col a:hover{color:var(--primary)}
.footer-sub p{color:var(--muted);font-size:13.5px;line-height:1.8;margin-bottom:14px}
.footer-sub .form-field{margin-bottom:10px}
.footer-sub .btn{width:100%}
.footer-bottom{
  border-top:1px solid var(--line);
  padding:22px 0 28px;
  display:flex;align-items:center;justify-content:space-between;gap:20px;flex-wrap:wrap;
  font-size:13px;color:var(--faint);
}
.to-top{
  width:44px;height:44px;border-radius:50%;
  display:grid;place-items:center;
  background:rgba(255,255,255,.06);
  border:1px solid var(--line-strong);
  color:var(--text);font-size:16px;
  transition:border-color .2s ease,background .2s ease,transform .2s ease;
}
.to-top:hover{border-color:rgba(57,230,208,.55);background:rgba(57,230,208,.12);transform:translateY(-2px);color:var(--text)}

/* 响应式 */
@media (max-width:1023px){
  .nav-links,.nav-actions{display:none}
  .nav-toggle{display:flex}
  .hero-inner{grid-template-columns:1fr;gap:34px;padding:56px 0 64px}
  .story-grid{grid-template-columns:1fr}
  .feature-grid{grid-template-columns:1fr}
  .side-stack{grid-template-rows:auto auto}
  .cta-panel{grid-template-columns:1fr;padding:32px;gap:26px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:30px}
  .stats-bar{grid-template-columns:repeat(2,minmax(0,1fr))}
  .section{padding:64px 0}
}
@media (max-width:767px){
  .container{padding:0 18px}
  .nav-panel{padding:10px 14px;min-height:66px;margin-top:12px;border-radius:16px}
  .brand-text{font-size:15.5px}
  .hero h1{font-size:clamp(27px,7.4vw,34px)}
  .hero-sub{font-size:15.5px}
  .hero-cta{gap:10px}
  .hero-cta .btn{width:100%}
  .post-grid{grid-template-columns:1fr}
  .post-card:nth-child(even){margin-top:0}
  .sec-head{margin-bottom:30px;gap:16px}
  .sec-head h2{font-size:23px}
  .mini-card{flex-direction:row}
  .mini-card .mini-media{width:96px}
  .faq-item summary{padding:16px 18px;font-size:15.5px;gap:10px}
  .faq-body{padding:0 18px 18px 18px}
  .faq-item[open] .faq-body{margin-left:0;padding-left:16px;border-left-width:2px}
  .cta-panel{padding:26px 20px}
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .stats-bar{grid-template-columns:1fr 1fr;gap:12px}
  .stat{padding:18px}
  .stat .num{font-size:24px}
  .quote-card{flex:0 0 84%}
  .section{padding:54px 0}
  .site-footer{margin-top:56px;padding-top:44px}
  .footer-bottom{flex-direction:column;align-items:flex-start;gap:14px}
}
@media (max-width:420px){
  .stats-bar{grid-template-columns:1fr}
  .drawer-grid{grid-template-columns:1fr}
}

/* roulang page: category1 */
:root{
  --bg-950:#070D18;
  --bg-900:#0B1526;
  --panel:#101C2F;
  --panel-soft:#0E1A2B;
  --panel-glass:rgba(16,28,47,.62);
  --line:rgba(255,255,255,.10);
  --line-strong:rgba(255,255,255,.18);
  --text:#F3F7FF;
  --muted:#A9B7CC;
  --faint:#718096;
  --primary:#39E6D0;
  --primary-strong:#13C9B2;
  --secondary:#B388FF;
  --accent:#FFB86B;
  --danger:#FF7A7A;
  --radius-lg:24px;
  --radius:16px;
  --radius-sm:12px;
  --shadow-card:0 24px 60px rgba(0,0,0,.35);
  --shadow-glow:0 0 0 1px rgba(57,230,208,.25),0 0 24px rgba(57,230,208,.28);
  --ease:180ms cubic-bezier(.4,0,.2,1);
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  background:var(--bg-950);
  color:var(--text);
  font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,sans-serif;
  font-size:16px;
  line-height:1.8;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none;transition:color var(--ease)}
a:hover{color:var(--primary)}
button{font-family:inherit;cursor:pointer;border:0;background:none;color:inherit}
input{font-family:inherit}
h1,h2,h3,h4{margin:0;line-height:1.22;letter-spacing:0;font-weight:700}
p{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
:focus-visible{outline:2px solid var(--primary);outline-offset:3px;border-radius:6px}
::selection{background:rgba(57,230,208,.28);color:#fff}

/* 背景层 */
body::before{
  content:"";
  position:fixed;
  inset:0;
  background-image:radial-gradient(rgba(255,255,255,.055) 1px,transparent 1px);
  background-size:24px 24px;
  pointer-events:none;
  z-index:0;
}
body::after{
  content:"";
  position:fixed;
  inset:0;
  background:
    radial-gradient(600px 420px at 82% -5%,rgba(179,136,255,.16),transparent 65%),
    radial-gradient(680px 480px at 8% 12%,rgba(57,230,208,.13),transparent 62%);
  pointer-events:none;
  z-index:0;
}

/* 容器 */
.container{
  width:100%;
  max-width:1240px;
  margin:0 auto;
  padding:0 32px;
  position:relative;
  z-index:1;
}

/* 导航 */
.site-header{position:sticky;top:0;z-index:60;padding:16px 0 8px}
.nav-panel{
  display:flex;
  align-items:center;
  gap:20px;
  min-height:80px;
  padding:12px 20px;
  border-radius:var(--radius-lg);
  border:1px solid var(--line);
  background:var(--panel-glass);
  backdrop-filter:blur(16px);
  -webkit-backdrop-filter:blur(16px);
  box-shadow:0 24px 60px rgba(0,0,0,.35),inset 0 1px rgba(255,255,255,.06);
}
.brand{display:inline-flex;align-items:center;gap:10px;flex-shrink:0}
.brand-mark{
  width:38px;height:38px;border-radius:12px;
  display:grid;place-items:center;
  font-weight:800;font-size:18px;color:#04120F;
  background:linear-gradient(135deg,var(--primary),var(--primary-strong));
  box-shadow:0 0 20px rgba(57,230,208,.35);
}
.brand-text{font-size:17px;font-weight:700;letter-spacing:.3px;white-space:nowrap}
.nav-links{display:flex;align-items:center;gap:6px;margin-left:auto}
.nav-link{
  position:relative;
  display:inline-flex;align-items:center;
  padding:10px 14px;border-radius:var(--radius-sm);
  font-size:14.5px;color:var(--muted);
  border:1px solid transparent;
  transition:all var(--ease);
}
.nav-link:hover{color:var(--text);background:rgba(255,255,255,.05);border-color:var(--line)}
.nav-link.active{
  color:var(--primary);
  background:rgba(57,230,208,.10);
  border-color:rgba(57,230,208,.34);
}
.nav-link.active::before{
  content:"";position:absolute;left:50%;bottom:-11px;transform:translateX(-50%);
  width:18px;height:2px;border-radius:2px;background:var(--primary);
}
.nav-actions{display:flex;align-items:center;gap:10px}
.nav-toggle{
  display:none;width:44px;height:44px;border-radius:12px;
  border:1px solid var(--line);background:rgba(255,255,255,.04);
  align-items:center;justify-content:center;
}
.nav-toggle span,.nav-toggle span::before,.nav-toggle span::after{
  display:block;width:18px;height:2px;border-radius:2px;background:var(--text);
  position:relative;transition:all var(--ease);
}
.nav-toggle span::before,.nav-toggle span::after{content:"";position:absolute;left:0}
.nav-toggle span::before{top:-6px}
.nav-toggle span::after{top:6px}
.mobile-drawer{
  display:none;
  margin:10px auto 0;
  max-width:1240px;
  padding:16px 20px 20px;
  border-radius:var(--radius-lg);
  border:1px solid var(--line);
  background:rgba(11,21,38,.96);
  backdrop-filter:blur(16px);
  box-shadow:var(--shadow-card);
}
.mobile-drawer.open{display:block}
.drawer-grid{display:grid;grid-template-columns:1fr 1fr;gap:10px}
.drawer-link{
  display:flex;align-items:center;justify-content:center;
  min-height:48px;padding:10px 12px;border-radius:var(--radius-sm);
  border:1px solid var(--line);background:rgba(255,255,255,.03);
  font-size:15px;color:var(--muted);
}
.drawer-link.active{color:var(--primary);border-color:rgba(57,230,208,.4);background:rgba(57,230,208,.10)}
.drawer-cta{margin-top:12px}
.drawer-cta .btn{width:100%}

/* 按钮 */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:48px;padding:12px 22px;
  border-radius:14px;
  font-size:15px;font-weight:600;
  border:1px solid transparent;
  transition:all var(--ease);
  white-space:nowrap;
}
.btn .arrow{transition:transform var(--ease)}
.btn:hover .arrow{transform:translateX(3px)}
.btn-primary{
  color:#04120F;
  background:linear-gradient(135deg,var(--primary),var(--primary-strong));
  box-shadow:var(--shadow-glow);
}
.btn-primary:hover{color:#04120F;filter:brightness(1.07);box-shadow:0 0 0 1px rgba(57,230,208,.4),0 0 36px rgba(57,230,208,.42)}
.btn-primary:active{transform:translateY(1px)}
.btn-ghost{
  color:var(--text);
  background:rgba(255,255,255,.04);
  border-color:var(--line-strong);
}
.btn-ghost:hover{color:var(--primary);border-color:rgba(57,230,208,.55);background:rgba(57,230,208,.08)}
.btn-sm{min-height:44px;padding:10px 18px;font-size:14px;border-radius:12px}

/* 通用标签 */
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  padding:6px 14px;border-radius:999px;
  border:1px solid rgba(57,230,208,.3);
  background:rgba(57,230,208,.10);
  color:var(--primary);
  font-size:13px;font-weight:600;letter-spacing:.4px;
}
.eyebrow::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--primary);box-shadow:0 0 10px var(--primary)}
.tag{
  display:inline-flex;align-items:center;
  padding:4px 12px;border-radius:999px;
  font-size:12.5px;font-weight:600;
  border:1px solid var(--line-strong);
  background:rgba(255,255,255,.04);
  color:var(--muted);
}
.tag-mint{color:var(--primary);border-color:rgba(57,230,208,.35);background:rgba(57,230,208,.10)}
.tag-violet{color:var(--secondary);border-color:rgba(179,136,255,.35);background:rgba(179,136,255,.10)}
.tag-amber{color:var(--accent);border-color:rgba(255,184,107,.35);background:rgba(255,184,107,.10)}

/* Hero */
.page-hero{position:relative;padding:56px 0 64px;overflow:hidden}
.hero-bg{
  position:absolute;inset:0;
  background-size:cover;background-position:center;
  opacity:.5;
}
.page-hero::after{
  content:"";position:absolute;inset:0;
  background:
    linear-gradient(180deg,rgba(7,13,24,.72) 0%,rgba(7,13,24,.92) 72%,var(--bg-950) 100%),
    radial-gradient(520px 320px at 78% 18%,rgba(179,136,255,.28),transparent 70%),
    radial-gradient(520px 340px at 12% 62%,rgba(57,230,208,.22),transparent 72%);
}
.hero-inner{
  display:grid;
  grid-template-columns:1.35fr .85fr;
  gap:40px;
  align-items:center;
  position:relative;
  z-index:2;
}
.breadcrumb{
  display:flex;align-items:center;gap:8px;
  font-size:13px;color:var(--faint);margin-bottom:18px;
}
.breadcrumb a{color:var(--muted)}
.breadcrumb span.sep{color:var(--faint)}
.hero-copy h1{
  font-size:clamp(32px,4.2vw,50px);
  line-height:1.18;
  margin:16px 0 18px;
  font-weight:800;
}
.hero-copy h1 em{font-style:normal;color:var(--primary)}
.hero-copy .hero-sub{
  color:var(--muted);font-size:16.5px;max-width:600px;
}
.hero-cta{display:flex;flex-wrap:wrap;gap:12px;margin-top:28px}
.hero-chips{display:flex;flex-wrap:wrap;gap:10px;margin-top:26px}
.chip{
  display:inline-flex;align-items:center;gap:8px;
  padding:8px 16px;border-radius:999px;
  border:1px solid var(--line);
  background:rgba(16,28,47,.66);
  backdrop-filter:blur(12px);
  font-size:13px;color:var(--muted);
}
.chip b{color:var(--text);font-weight:600}
.chip .dot{width:6px;height:6px;border-radius:50%;background:var(--primary);box-shadow:0 0 10px var(--primary)}

/* 状态卡 */
.status-card{
  border-radius:var(--radius-lg);
  border:1px solid var(--line);
  background:var(--panel-glass);
  backdrop-filter:blur(16px);
  box-shadow:var(--shadow-card),inset 0 1px rgba(255,255,255,.06);
  padding:26px;
}
.status-card h2{font-size:16px;font-weight:700;margin-bottom:4px}
.status-card .sc-note{font-size:13px;color:var(--faint);margin-bottom:20px}
.sc-row{
  display:flex;align-items:center;justify-content:space-between;gap:12px;
  padding:13px 0;border-bottom:1px dashed rgba(255,255,255,.09);
  font-size:14px;
}
.sc-row:last-child{border-bottom:0;padding-bottom:0}
.sc-row .k{color:var(--muted)}
.sc-row .v{color:var(--text);font-weight:600;display:inline-flex;align-items:center;gap:8px}
.sc-row .v .dot{width:7px;height:7px;border-radius:50%;background:var(--primary);box-shadow:0 0 10px var(--primary)}
.sc-bars{display:flex;gap:6px;margin:18px 0 6px}
.sc-bars i{flex:1;height:5px;border-radius:3px;background:rgba(255,255,255,.10)}
.sc-bars i.on{background:linear-gradient(90deg,var(--primary),var(--primary-strong));box-shadow:0 0 12px rgba(57,230,208,.5)}
.sc-caption{font-size:12.5px;color:var(--faint)}

/* 板块 */
.section{padding:76px 0;position:relative}
.section-alt{
  background:linear-gradient(180deg,rgba(11,21,38,.9),rgba(7,13,24,0));
  border-top:1px solid rgba(255,255,255,.05);
  border-bottom:1px solid rgba(255,255,255,.05);
}
.section-head{max-width:720px;margin-bottom:40px}
.section-head h2{font-size:clamp(24px,2.9vw,34px);margin:14px 0 12px}
.section-head p{color:var(--muted);font-size:15.5px}

/* 卡片 */
.card{
  border-radius:var(--radius-lg);
  border:1px solid var(--line);
  background:var(--panel);
  padding:26px;
  transition:all var(--ease);
  box-shadow:0 10px 30px rgba(0,0,0,.22);
}
.card:hover{transform:translateY(-4px);border-color:rgba(57,230,208,.42);box-shadow:0 20px 44px rgba(0,0,0,.4),0 0 22px rgba(57,230,208,.14)}

/* 准备清单 */
.prep-grid{display:grid;grid-template-columns:1.15fr .85fr;gap:24px;align-items:start}
.prep-list{display:grid;gap:14px}
.prep-item{
  display:flex;gap:16px;
  padding:20px 22px;border-radius:var(--radius);
  border:1px solid var(--line);
  background:var(--panel-soft);
  transition:all var(--ease);
}
.prep-item:hover{border-color:rgba(57,230,208,.4);background:rgba(57,230,208,.05)}
.prep-num{
  flex-shrink:0;width:34px;height:34px;border-radius:10px;
  display:grid;place-items:center;
  font-size:13px;font-weight:700;color:var(--primary);
  border:1px solid rgba(57,230,208,.35);
  background:rgba(57,230,208,.10);
}
.prep-item h3{font-size:16.5px;margin-bottom:6px}
.prep-item p{color:var(--muted);font-size:14.5px}
.prep-aside{
  border-radius:var(--radius-lg);
  border:1px solid var(--line);
  background:var(--panel-glass);
  backdrop-filter:blur(14px);
  padding:26px;
  box-shadow:var(--shadow-card);
}
.prep-aside h3{font-size:17px;margin-bottom:10px}
.prep-aside p{color:var(--muted);font-size:14.5px;margin-bottom:18px}
.aside-list{display:grid;gap:12px}
.aside-list li{
  display:flex;gap:10px;align-items:flex-start;
  font-size:14px;color:var(--muted);
  padding-bottom:12px;border-bottom:1px dashed rgba(255,255,255,.08);
}
.aside-list li:last-child{border-bottom:0;padding-bottom:0}
.aside-list li::before{
  content:"›";color:var(--primary);font-weight:700;font-size:16px;line-height:1.6;
}

/* 时间线 */
.timeline{position:relative;margin-top:8px;padding-left:8px}
.timeline::before{
  content:"";position:absolute;left:36px;top:12px;bottom:12px;
  width:2px;background:linear-gradient(180deg,rgba(57,230,208,.55),rgba(179,136,255,.35),transparent);
}
.tl-item{position:relative;display:flex;gap:24px;padding:0 0 22px}
.tl-item:last-child{padding-bottom:0}
.tl-num{
  position:relative;z-index:2;flex-shrink:0;
  width:58px;height:58px;border-radius:18px;
  display:grid;place-items:center;
  font-size:15px;font-weight:800;color:var(--primary);
  border:1px solid rgba(57,230,208,.38);
  background:rgba(16,28,47,.95);
  box-shadow:0 0 22px rgba(57,230,208,.18);
}
.tl-body{
  flex:1;
  border-radius:var(--radius-lg);
  border:1px solid var(--line);
  background:linear-gradient(140deg,rgba(16,28,47,.96),rgba(11,21,38,.92));
  padding:24px 26px;
  transition:all var(--ease);
}
.tl-body:hover{border-color:rgba(57,230,208,.42);box-shadow:0 18px 40px rgba(0,0,0,.36)}
.tl-body h3{font-size:19px;margin-bottom:8px}
.tl-body p{color:var(--muted);font-size:15px}
.tl-meta{display:flex;flex-wrap:wrap;gap:8px;margin-top:14px}

/* 资源卡 */
.res-grid{display:grid;grid-template-columns:1fr 1fr;gap:24px}
.res-card{
  display:flex;flex-direction:column;
  border-radius:var(--radius-lg);
  border:1px solid var(--line);
  background:var(--panel);
  overflow:hidden;
  transition:all var(--ease);
}
.res-card:hover{transform:translateY(-4px);border-color:rgba(57,230,208,.42);box-shadow:0 22px 48px rgba(0,0,0,.42)}
.res-media{position:relative;aspect-ratio:16/10;overflow:hidden}
.res-media img{width:100%;height:100%;object-fit:cover;transition:transform 420ms ease}
.res-card:hover .res-media img{transform:scale(1.04)}
.res-media::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(7,13,24,.05),rgba(7,13,24,.82));
}
.res-media .res-badge{position:absolute;top:14px;left:14px;z-index:2}
.res-body{padding:22px 24px 26px;display:flex;flex-direction:column;gap:10px;flex:1}
.res-body h3{font-size:18px;line-height:1.4}
.res-body p{color:var(--muted);font-size:14.5px;flex:1}
.res-link{
  display:inline-flex;align-items:center;gap:6px;
  color:var(--primary);font-size:14px;font-weight:600;margin-top:4px;
}
.res-link .arrow{transition:transform var(--ease)}
.res-card:hover .res-link .arrow{transform:translateX(3px)}

/* 提示对照 */
.hint-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:18px}
.hint-item{
  border-radius:var(--radius);
  border:1px solid var(--line);
  background:var(--panel-soft);
  padding:22px 24px;
  transition:all var(--ease);
}
.hint-item:hover{border-color:rgba(179,136,255,.4);background:rgba(179,136,255,.06)}
.hint-item h3{font-size:16.5px;margin-bottom:8px;display:flex;align-items:center;gap:10px}
.hint-item h3 .mark{
  width:26px;height:26px;border-radius:8px;display:grid;place-items:center;
  font-size:13px;background:rgba(255,184,107,.14);color:var(--accent);
  border:1px solid rgba(255,184,107,.32);flex-shrink:0;
}
.hint-item p{color:var(--muted);font-size:14.5px}

/* FAQ */
.faq-list{display:grid;gap:14px;max-width:900px}
.faq-item{
  border-radius:var(--radius);
  border:1px solid var(--line);
  background:var(--panel-glass);
  backdrop-filter:blur(12px);
  overflow:hidden;
  transition:all var(--ease);
}
.faq-item[open]{
  border-color:rgba(57,230,208,.42);
  background:rgba(16,28,47,.9);
  box-shadow:0 0 0 1px rgba(57,230,208,.14),0 18px 40px rgba(0,0,0,.32);
}
.faq-item summary{
  display:flex;align-items:center;gap:14px;
  padding:20px 24px;
  font-size:16.5px;font-weight:600;
  cursor:pointer;list-style:none;
  position:relative;
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{
  content:"+";margin-left:auto;font-size:20px;color:var(--faint);
  transition:all var(--ease);line-height:1;
}
.faq-item[open] summary::after{content:"−";color:var(--primary)}
.faq-item[open] summary{color:var(--primary)}
.faq-idx{
  flex-shrink:0;
  width:30px;height:30px;border-radius:9px;
  display:grid;place-items:center;
  font-size:12.5px;font-weight:700;color:var(--primary);
  border:1px solid rgba(57,230,208,.3);
  background:rgba(57,230,208,.08);
}
.faq-answer{
  padding:0 24px 22px 68px;
  color:var(--muted);font-size:15px;line-height:1.8;
  border-left:2px solid rgba(57,230,208,.42);
  margin-left:38px;
  padding-left:16px;
}

/* CTA */
.cta-panel{
  position:relative;
  border-radius:28px;
  border:1px solid rgba(57,230,208,.26);
  background:
    radial-gradient(520px 300px at 88% 12%,rgba(179,136,255,.22),transparent 68%),
    radial-gradient(560px 320px at 6% 88%,rgba(57,230,208,.20),transparent 70%),
    linear-gradient(140deg,rgba(16,28,47,.96),rgba(9,17,30,.96));
  padding:48px;
  display:grid;grid-template-columns:1.1fr .9fr;gap:36px;align-items:center;
  overflow:hidden;
  box-shadow:var(--shadow-card);
}
.cta-panel h2{font-size:clamp(23px,2.6vw,31px);margin-bottom:12px}
.cta-panel p{color:var(--muted);font-size:15.5px;max-width:520px}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:26px}
.cta-form{
  border-radius:var(--radius-lg);
  border:1px solid var(--line);
  background:rgba(7,13,24,.55);
  padding:24px;
}
.cta-form h3{font-size:16px;margin-bottom:6px}
.cta-form .form-note{font-size:13px;color:var(--faint);margin-bottom:16px}
.form-field{display:block;margin-bottom:14px}
.form-field span{display:block;font-size:13px;color:var(--muted);margin-bottom:8px}
.form-field input{
  width:100%;min-height:48px;padding:12px 14px;
  border-radius:var(--radius-sm);
  border:1px solid var(--line-strong);
  background:rgba(16,28,47,.9);
  color:var(--text);font-size:14.5px;
  transition:all var(--ease);
}
.form-field input::placeholder{color:var(--faint)}
.form-field input:focus{
  outline:none;border-color:var(--primary);
  box-shadow:0 0 0 3px rgba(57,230,208,.18);
  background:rgba(16,28,47,1);
}
.cta-form .btn{width:100%}
.cta-form .help{font-size:12.5px;color:var(--faint);margin-top:12px}

/* 页脚 */
.site-footer{
  margin-top:70px;
  border-top:1px solid var(--line);
  background:linear-gradient(180deg,rgba(11,21,38,.85),rgba(7,13,24,1));
  backdrop-filter:blur(14px);
  padding:56px 0 26px;
  position:relative;z-index:1;
}
.footer-grid{
  display:grid;grid-template-columns:1.4fr .8fr .9fr 1fr;gap:36px;
  padding-bottom:38px;
  border-bottom:1px solid rgba(255,255,255,.07);
}
.footer-brand p{color:var(--muted);font-size:14px;margin-top:16px;max-width:320px}
.footer-col h4{font-size:14.5px;margin-bottom:16px;color:var(--text);letter-spacing:.3px}
.footer-col ul{display:grid;gap:10px}
.footer-col ul a{font-size:14px;color:var(--muted)}
.footer-col ul a:hover{color:var(--primary)}
.footer-sub p{color:var(--muted);font-size:13.5px;margin-bottom:14px}
.footer-sub form{display:grid;gap:10px}
.footer-sub .form-field{margin-bottom:0}
.footer-bottom{
  display:flex;flex-wrap:wrap;align-items:center;gap:14px;
  padding-top:22px;
  font-size:13px;color:var(--faint);
}
.footer-bottom > span:nth-child(2){margin-left:auto;text-align:right}
.to-top{
  width:44px;height:44px;border-radius:50%;
  display:grid;place-items:center;
  border:1px solid var(--line-strong);
  background:rgba(255,255,255,.04);
  color:var(--text);font-size:16px;
  transition:all var(--ease);
}
.to-top:hover{color:var(--primary);border-color:rgba(57,230,208,.6);background:rgba(57,230,208,.1);transform:translateY(-2px)}

/* 响应式 */
@media (max-width:1023px){
  .container{padding:0 24px}
  .nav-links,.nav-actions{display:none}
  .nav-toggle{display:flex;margin-left:auto}
  .nav-panel{min-height:72px;padding:10px 16px}
  .hero-inner{grid-template-columns:1fr;gap:30px}
  .prep-grid{grid-template-columns:1fr}
  .res-grid{grid-template-columns:1fr}
  .hint-grid{grid-template-columns:1fr}
  .cta-panel{grid-template-columns:1fr;padding:32px}
  .footer-grid{grid-template-columns:1.2fr .8fr;gap:30px}
  .section{padding:60px 0}
  .page-hero{padding:40px 0 52px}
}
@media (max-width:767px){
  .container{padding:0 20px}
  body{font-size:15.5px}
  .hero-copy h1{font-size:clamp(27px,7vw,34px)}
  .hero-copy .hero-sub{font-size:15px}
  .section{padding:48px 0}
  .section-head{margin-bottom:28px}
  .card,.tl-body,.prep-aside,.status-card,.res-body,.cta-form{padding:20px}
  .tl-item{gap:14px}
  .tl-num{width:46px;height:46px;border-radius:14px;font-size:13px}
  .timeline::before{left:29px}
  .faq-answer{padding-left:14px;margin-left:22px;padding-right:20px}
  .faq-item summary{padding:16px 18px;font-size:15.5px;gap:10px}
  .footer-grid{grid-template-columns:1fr;gap:26px}
  .footer-bottom{flex-direction:column;align-items:flex-start;gap:10px}
  .footer-bottom > span:nth-child(2){margin-left:0;text-align:left}
  .to-top{margin-top:6px}
  .hero-cta .btn,.cta-actions .btn{width:100%}
  .cta-panel{padding:24px}
}
@media (max-width:519px){
  .drawer-grid{grid-template-columns:1fr}
  .brand-text{font-size:15.5px}
  .brand-mark{width:34px;height:34px;font-size:16px}
  .hero-chips .chip{font-size:12.5px;padding:7px 12px}
}
@media (prefers-reduced-motion:reduce){
  *{animation:none!important;transition:none!important;scroll-behavior:auto!important}
}

/* roulang page: article */
:root{
  --bg-950:#070D18;
  --bg-900:#0B1526;
  --panel:#101C2F;
  --panel-soft:#0E1A2C;
  --panel-glass:rgba(16,28,47,.62);
  --line:rgba(255,255,255,.10);
  --line-strong:rgba(57,230,208,.28);
  --text:#F3F7FF;
  --muted:#A9B7CC;
  --faint:#718096;
  --primary:#39E6D0;
  --primary-strong:#13C9B2;
  --secondary:#B388FF;
  --accent:#FFB86B;
  --danger:#FF7A7A;
  --radius-lg:24px;
  --radius:16px;
  --radius-sm:12px;
  --shadow-card:0 24px 60px rgba(0,0,0,.35);
  --shadow-soft:0 14px 34px rgba(0,0,0,.28);
  --glow:0 0 0 1px rgba(57,230,208,.25), 0 0 24px rgba(57,230,208,.28);
  --font-cn:"PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,"Segoe UI",sans-serif;
}
*,*::before,*::after{box-sizing:border-box;}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%;}
body{
  margin:0;
  font-family:var(--font-cn);
  font-size:16px;
  line-height:1.8;
  color:var(--text);
  background:
    radial-gradient(900px 520px at 12% -8%, rgba(57,230,208,.14), transparent 62%),
    radial-gradient(820px 520px at 88% 4%, rgba(179,136,255,.14), transparent 64%),
    var(--bg-950);
  overflow-x:hidden;
}
body::before{
  content:"";
  position:fixed;
  inset:0;
  z-index:0;
  pointer-events:none;
  background-image:radial-gradient(rgba(255,255,255,.05) 1px, transparent 1px);
  background-size:24px 24px;
  -webkit-mask-image:radial-gradient(circle at 50% 0%, #000 0%, transparent 76%);
  mask-image:radial-gradient(circle at 50% 0%, #000 0%, transparent 76%);
}
img{max-width:100%;display:block;border-style:none;}
a{color:inherit;text-decoration:none;transition:color .18s ease;}
a:hover{color:var(--primary);}
a:focus-visible,button:focus-visible,input:focus-visible,summary:focus-visible{
  outline:2px solid var(--primary);
  outline-offset:3px;
}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer;}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4,p{margin:0;}
.container{
  width:100%;
  max-width:1240px;
  margin:0 auto;
  padding-left:24px;
  padding-right:24px;
  position:relative;
  z-index:1;
}
.arrow{display:inline-block;transition:transform .18s ease;}
.btn:hover .arrow{transform:translateX(2px);}

/* 通用按钮 */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  min-height:44px;
  padding:12px 22px;
  border-radius:14px;
  font-size:15px;
  font-weight:600;
  line-height:1.2;
  border:1px solid transparent;
  transition:transform .18s ease, box-shadow .18s ease, background .18s ease, border-color .18s ease, color .18s ease;
  white-space:nowrap;
}
.btn-primary{
  background:linear-gradient(135deg,#39E6D0 0%,#13C9B2 100%);
  color:#04211C;
  box-shadow:var(--glow);
}
.btn-primary:hover{
  color:#04211C;
  transform:translateY(-1px);
  box-shadow:0 0 0 1px rgba(57,230,208,.4), 0 0 36px rgba(57,230,208,.4);
}
.btn-primary:active{transform:translateY(1px);}
.btn-ghost{
  background:rgba(255,255,255,.035);
  border-color:var(--line);
  color:var(--text);
}
.btn-ghost:hover{
  border-color:var(--line-strong);
  color:var(--primary);
  transform:translateY(-1px);
}
.btn-sm{min-height:38px;padding:9px 16px;font-size:14px;border-radius:12px;}

/* 顶部导航 */
.site-header{
  position:sticky;
  top:0;
  z-index:60;
  padding:12px 0 4px;
}
.nav-panel{
  display:flex;
  align-items:center;
  gap:16px;
  padding:10px 14px;
  border-radius:18px;
  border:1px solid var(--line);
  background:var(--panel-glass);
  -webkit-backdrop-filter:blur(16px);
  backdrop-filter:blur(16px);
  box-shadow:0 20px 48px rgba(0,0,0,.4), inset 0 1px 0 rgba(255,255,255,.06);
}
.brand{
  display:inline-flex;
  align-items:center;
  gap:10px;
  flex:none;
}
.brand:hover{color:var(--text);}
.brand-mark{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  width:36px;
  height:36px;
  border-radius:12px;
  font-size:18px;
  font-weight:800;
  color:#04211C;
  background:linear-gradient(135deg,#39E6D0 0%,#B388FF 100%);
  box-shadow:0 0 18px rgba(57,230,208,.28);
}
.brand-text{
  font-size:15.5px;
  font-weight:700;
  letter-spacing:.02em;
  color:var(--text);
}
.nav-links{
  display:flex;
  align-items:center;
  gap:4px;
  flex:1;
  justify-content:center;
}
.nav-link{
  position:relative;
  padding:9px 14px;
  border-radius:12px;
  font-size:14.5px;
  color:var(--muted);
  transition:color .18s ease, background .18s ease, box-shadow .18s ease;
}
.nav-link:hover{
  color:var(--text);
  background:rgba(255,255,255,.05);
}
.nav-link.active{
  color:var(--primary);
  background:rgba(57,230,208,.08);
  box-shadow:inset 0 0 0 1px rgba(57,230,208,.18);
}
.nav-link.active::after{
  content:"";
  position:absolute;
  left:50%;
  bottom:3px;
  width:4px;
  height:4px;
  margin-left:-2px;
  border-radius:50%;
  background:var(--primary);
}
.nav-actions{display:flex;align-items:center;gap:10px;flex:none;}
.nav-toggle{
  display:none;
  width:44px;
  height:44px;
  border-radius:12px;
  border:1px solid var(--line);
  background:rgba(255,255,255,.04);
  align-items:center;
  justify-content:center;
}
.nav-toggle span{
  position:relative;
  display:block;
  width:18px;
  height:2px;
  border-radius:2px;
  background:var(--text);
}
.nav-toggle span::before,
.nav-toggle span::after{
  content:"";
  position:absolute;
  left:0;
  width:18px;
  height:2px;
  border-radius:2px;
  background:var(--text);
}
.nav-toggle span::before{top:-6px;}
.nav-toggle span::after{top:6px;}
.mobile-drawer{
  display:none;
  max-width:1240px;
  margin:10px auto 0;
  padding:16px 24px 20px;
  border-radius:18px;
  border:1px solid var(--line);
  background:rgba(11,21,38,.96);
  -webkit-backdrop-filter:blur(16px);
  backdrop-filter:blur(16px);
  box-shadow:var(--shadow-card);
}
.mobile-drawer.open{display:block;}
.drawer-grid{
  display:grid;
  grid-template-columns:repeat(2,minmax(0,1fr));
  gap:10px;
}
.drawer-link{
  display:flex;
  align-items:center;
  min-height:46px;
  padding:0 14px;
  border-radius:12px;
  border:1px solid var(--line);
  background:rgba(255,255,255,.03);
  font-size:14.5px;
  color:var(--muted);
}
.drawer-link:hover{color:var(--text);border-color:rgba(255,255,255,.22);}
.drawer-link.active{
  color:var(--primary);
  border-color:var(--line-strong);
  background:rgba(57,230,208,.08);
}
.drawer-cta{margin-top:14px;}
.drawer-cta .btn{width:100%;}

/* 文章阅读头部 */
.article-hero{
  position:relative;
  margin-top:12px;
  padding:64px 0 56px;
  background:
    linear-gradient(180deg, rgba(7,13,24,.78) 0%, rgba(7,13,24,.94) 100%),
    url('/assets/images/backpic/back-1.webp') center/cover no-repeat;
  border-top:1px solid rgba(255,255,255,.06);
  border-bottom:1px solid var(--line);
  overflow:hidden;
}
.article-hero::before{
  content:"";
  position:absolute;
  top:-120px;
  left:-80px;
  width:460px;
  height:460px;
  border-radius:50%;
  background:radial-gradient(circle, rgba(57,230,208,.24), transparent 66%);
  filter:blur(10px);
  pointer-events:none;
}
.article-hero::after{
  content:"";
  position:absolute;
  right:-100px;
  bottom:-160px;
  width:460px;
  height:460px;
  border-radius:50%;
  background:radial-gradient(circle, rgba(179,136,255,.22), transparent 66%);
  filter:blur(10px);
  pointer-events:none;
}
.crumbs{
  display:flex;
  align-items:center;
  flex-wrap:wrap;
  gap:8px;
  font-size:13px;
  color:var(--faint);
  margin-bottom:20px;
}
.crumbs a{color:var(--muted);}
.crumbs a:hover{color:var(--primary);}
.crumbs .crumb-current{color:var(--muted);}
.hero-badges{
  display:flex;
  flex-wrap:wrap;
  gap:10px;
  margin-bottom:18px;
}
.badge{
  display:inline-flex;
  align-items:center;
  gap:6px;
  padding:6px 12px;
  border-radius:999px;
  border:1px solid var(--line);
  background:rgba(255,255,255,.05);
  font-size:12.5px;
  font-weight:600;
  color:var(--muted);
  letter-spacing:.02em;
}
.badge-primary{
  color:var(--primary);
  border-color:rgba(57,230,208,.32);
  background:rgba(57,230,208,.1);
}
.badge-secondary{
  color:var(--secondary);
  border-color:rgba(179,136,255,.3);
  background:rgba(179,136,255,.1);
}
.read-title{
  font-size:clamp(30px,4vw,46px);
  line-height:1.22;
  font-weight:800;
  letter-spacing:0;
  max-width:960px;
  text-wrap:balance;
}
.read-summary{
  margin-top:18px;
  max-width:840px;
  font-size:16.5px;
  line-height:1.85;
  color:var(--muted);
}
.read-meta{
  display:flex;
  align-items:center;
  flex-wrap:wrap;
  gap:14px;
  margin-top:26px;
  font-size:13px;
  color:var(--faint);
}
.read-meta .dot{
  width:4px;
  height:4px;
  border-radius:50%;
  background:rgba(255,255,255,.24);
}

/* 主体布局 */
.main-wrap{padding:56px 0 84px;}
.article-grid{
  display:grid;
  grid-template-columns:minmax(0,1fr) 322px;
  gap:36px;
  align-items:start;
}
.article-main{min-width:0;}
.article-card{
  background:var(--panel);
  border:1px solid var(--line);
  border-radius:var(--radius-lg);
  padding:36px 38px;
  box-shadow:var(--shadow-card);
}
.article-body{
  font-size:16.5px;
  line-height:1.88;
  color:#DEE8F7;
  word-break:break-word;
}
.article-body > *:first-child{margin-top:0;}
.article-body > *:last-child{margin-bottom:0;}
.article-body p{margin:1.05em 0;}
.article-body h2{
  position:relative;
  margin:2em 0 .7em;
  padding-left:14px;
  font-size:clamp(22px,2.4vw,27px);
  line-height:1.3;
  font-weight:700;
  color:var(--text);
}
.article-body h2::before{
  content:"";
  position:absolute;
  left:0;
  top:.24em;
  bottom:.24em;
  width:3px;
  border-radius:3px;
  background:linear-gradient(180deg,var(--primary),var(--secondary));
}
.article-body h3{
  margin:1.7em 0 .6em;
  font-size:20px;
  line-height:1.4;
  font-weight:700;
  color:var(--text);
}
.article-body h4{
  margin:1.4em 0 .5em;
  font-size:17px;
  font-weight:600;
  color:var(--text);
}
.article-body ul,.article-body ol{
  margin:1.05em 0;
  padding-left:1.35em;
}
.article-body ul{list-style:disc;}
.article-body ol{list-style:decimal;}
.article-body li{margin:.45em 0;}
.article-body li::marker{color:var(--primary);}
.article-body a{color:var(--primary);text-decoration:underline;text-underline-offset:3px;}
.article-body a:hover{color:#7BF6E7;}
.article-body strong{color:#FFFFFF;font-weight:700;}
.article-body blockquote{
  margin:1.4em 0;
  padding:16px 22px;
  border-left:3px solid var(--secondary);
  border-radius:0 14px 14px 0;
  background:rgba(179,136,255,.09);
  color:#CFD9EA;
}
.article-body blockquote p{margin:.3em 0;}
.article-body img{
  width:100%;
  height:auto;
  margin:1.4em 0;
  border-radius:16px;
  border:1px solid var(--line);
  box-shadow:var(--shadow-soft);
}
.article-body figure{margin:1.4em 0;}
.article-body figcaption{
  margin-top:8px;
  font-size:13px;
  color:var(--faint);
  text-align:center;
}
.article-body table{
  width:100%;
  margin:1.5em 0;
  border-collapse:collapse;
  font-size:14.5px;
  border-radius:14px;
  overflow:hidden;
  box-shadow:0 0 0 1px var(--line);
}
.article-body th,.article-body td{
  padding:12px 14px;
  border:1px solid var(--line);
  text-align:left;
  vertical-align:top;
}
.article-body th{
  background:rgba(255,255,255,.05);
  color:var(--text);
  font-weight:600;
}
.article-body code{
  padding:2px 6px;
  border-radius:6px;
  background:rgba(57,230,208,.12);
  color:#9BF5E9;
  font-size:.92em;
}
.article-body hr{
  margin:2em 0;
  border:0;
  border-top:1px solid var(--line);
}
.article-empty{
  padding:36px 28px;
  text-align:center;
  border:1px dashed rgba(255,255,255,.18);
  border-radius:18px;
  background:rgba(255,255,255,.02);
}
.article-empty h2{
  margin:0 0 10px;
  padding:0;
  font-size:22px;
}
.article-empty h2::before{display:none;}
.article-empty p{
  max-width:520px;
  margin:0 auto 22px;
  color:var(--muted);
  font-size:15px;
}

/* 侧栏 */
.article-side{
  display:flex;
  flex-direction:column;
  gap:18px;
  position:sticky;
  top:96px;
}
.side-card{
  background:var(--panel-soft);
  border:1px solid var(--line);
  border-radius:18px;
  padding:22px;
  box-shadow:var(--shadow-soft);
}
.side-card h3{
  font-size:15px;
  font-weight:700;
  letter-spacing:.02em;
  margin-bottom:14px;
  display:flex;
  align-items:center;
  gap:8px;
}
.side-card h3::before{
  content:"";
  width:6px;
  height:6px;
  border-radius:50%;
  background:var(--primary);
  box-shadow:0 0 10px rgba(57,230,208,.8);
}
.toc-list{display:flex;flex-direction:column;gap:4px;}
.toc-list li a{
  display:block;
  padding:6px 10px;
  border-left:2px solid transparent;
  border-radius:0 8px 8px 0;
  font-size:13.5px;
  line-height:1.6;
  color:var(--muted);
  transition:color .18s ease, background .18s ease, border-color .18s ease;
}
.toc-list li a:hover,
.toc-list li a.is-active{
  color:var(--primary);
  background:rgba(57,230,208,.08);
  border-left-color:var(--primary);
}
.toc-list li.toc-sub a{padding-left:22px;font-size:13px;color:var(--faint);}
.toc-list li.toc-sub a:hover{color:var(--primary);}
.side-links{display:flex;flex-direction:column;gap:8px;}
.side-links a{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:10px;
  padding:11px 13px;
  border-radius:12px;
  border:1px solid var(--line);
  background:rgba(255,255,255,.025);
  font-size:14px;
  color:var(--muted);
  transition:border-color .18s ease, color .18s ease, background .18s ease;
}
.side-links a:hover{
  color:var(--text);
  border-color:rgba(57,230,208,.34);
  background:rgba(57,230,208,.07);
}
.side-links a span.tip{font-size:12px;color:var(--faint);}
.side-sub p{
  font-size:13.5px;
  line-height:1.75;
  color:var(--muted);
  margin-bottom:14px;
}
.side-sub form{display:flex;flex-direction:column;gap:10px;}
.form-field{display:flex;flex-direction:column;gap:6px;}
.form-field > span{font-size:12.5px;color:var(--muted);}
.form-field input{
  width:100%;
  min-height:44px;
  padding:10px 13px;
  border-radius:12px;
  border:1px solid var(--line);
  background:rgba(7,13,24,.72);
  color:var(--text);
  font-size:14px;
  transition:border-color .18s ease, box-shadow .18s ease;
}
.form-field input::placeholder{color:var(--faint);}
.form-field input:focus{
  outline:none;
  border-color:var(--primary);
  box-shadow:0 0 0 3px rgba(57,230,208,.18);
}

/* 相关推荐 */
.related-block{margin-top:34px;}
.section-head{margin-bottom:20px;}
.section-head h2{
  font-size:24px;
  line-height:1.3;
  font-weight:700;
}
.section-head p{
  margin-top:8px;
  font-size:14.5px;
  color:var(--muted);
}
.related-grid{
  display:grid;
  grid-template-columns:repeat(2,minmax(0,1fr));
  gap:18px;
}
.related-card{
  display:flex;
  flex-direction:column;
  overflow:hidden;
  border-radius:18px;
  border:1px solid var(--line);
  background:var(--panel);
  box-shadow:var(--shadow-soft);
  transition:transform .2s ease, border-color .2s ease, box-shadow .2s ease;
}
.related-card:hover{
  transform:translateY(-4px);
  border-color:rgba(57,230,208,.34);
  box-shadow:0 26px 52px rgba(0,0,0,.42);
  color:inherit;
}
.related-thumb{
  position:relative;
  aspect-ratio:16/10;
  overflow:hidden;
}
.related-thumb img{
  width:100%;
  height:100%;
  object-fit:cover;
  transition:transform .4s ease;
}
.related-card:hover .related-thumb img{transform:scale(1.04);}
.related-thumb::after{
  content:"";
  position:absolute;
  inset:0;
  background:linear-gradient(180deg, rgba(7,13,24,0) 30%, rgba(7,13,24,.82) 100%);
}
.related-body{padding:18px 20px 20px;}
.related-body .badge{margin-bottom:10px;}
.related-body h3{
  font-size:17px;
  line-height:1.45;
  font-weight:700;
  color:var(--text);
}
.related-body p{
  margin-top:8px;
  font-size:13.5px;
  line-height:1.7;
  color:var(--muted);
  display:-webkit-box;
  -webkit-line-clamp:2;
  -webkit-box-orient:vertical;
  overflow:hidden;
}
.related-more{
  display:inline-flex;
  align-items:center;
  gap:6px;
  margin-top:14px;
  font-size:13.5px;
  font-weight:600;
  color:var(--primary);
}

/* FAQ */
.faq-block{margin-top:34px;}
.faq-list{display:flex;flex-direction:column;gap:12px;}
.faq-item{
  border-radius:16px;
  border:1px solid var(--line);
  background:linear-gradient(180deg, rgba(255,255,255,.035), rgba(255,255,255,.012));
  overflow:hidden;
  transition:border-color .2s ease, background .2s ease;
}
.faq-item[open]{
  border-color:rgba(57,230,208,.3);
  background:rgba(57,230,208,.06);
}
.faq-item summary{
  display:flex;
  align-items:center;
  gap:12px;
  padding:16px 20px;
  font-size:16px;
  font-weight:600;
  color:var(--text);
  cursor:pointer;
  list-style:none;
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary .num{
  flex:none;
  display:inline-flex;
  align-items:center;
  justify-content:center;
  width:26px;
  height:26px;
  border-radius:8px;
  font-size:12.5px;
  font-weight:700;
  color:var(--primary);
  background:rgba(57,230,208,.12);
  border:1px solid rgba(57,230,208,.24);
}
.faq-item summary .chev{
  margin-left:auto;
  color:var(--faint);
  transition:transform .2s ease, color .2s ease;
}
.faq-item[open] summary .chev{transform:rotate(180deg);color:var(--primary);}
.faq-answer{
  padding:0 20px 18px 58px;
  font-size:14.5px;
  line-height:1.8;
  color:var(--muted);
}

/* CTA 面板 */
.cta-panel{
  margin-top:34px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:26px;
  padding:30px 32px;
  border-radius:var(--radius-lg);
  border:1px solid rgba(57,230,208,.22);
  background:
    radial-gradient(520px 220px at 6% 0%, rgba(57,230,208,.18), transparent 70%),
    radial-gradient(420px 220px at 96% 100%, rgba(179,136,255,.18), transparent 70%),
    rgba(16,28,47,.78);
  box-shadow:var(--shadow-card);
}
.cta-panel h2{
  font-size:clamp(20px,2.2vw,25px);
  line-height:1.35;
  font-weight:700;
}
.cta-panel p{
  margin-top:8px;
  font-size:14.5px;
  color:var(--muted);
  max-width:640px;
}
.cta-actions{display:flex;gap:12px;flex:none;}

/* 页脚 */
.site-footer{
  position:relative;
  z-index:1;
  border-top:1px solid var(--line);
  background:linear-gradient(180deg, rgba(11,21,38,.72), rgba(7,13,24,.96));
  padding:56px 0 24px;
  margin-top:20px;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.4fr .8fr 1fr 1.1fr;
  gap:34px;
}
.footer-brand .brand{margin-bottom:14px;}
.footer-brand p{
  font-size:13.5px;
  line-height:1.8;
  color:var(--muted);
  max-width:330px;
}
.footer-col h4{
  font-size:15px;
  font-weight:700;
  margin-bottom:14px;
  color:var(--text);
}
.footer-col ul{display:flex;flex-direction:column;gap:9px;}
.footer-col ul a{
  font-size:13.5px;
  color:var(--muted);
}
.footer-col ul a:hover{color:var(--primary);}
.footer-sub p{
  font-size:13px;
  color:var(--muted);
  line-height:1.75;
  margin-bottom:12px;
}
.footer-sub form{display:flex;flex-direction:column;gap:10px;}
.footer-sub .btn{width:100%;}
.footer-bottom{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:18px;
  flex-wrap:wrap;
  margin-top:36px;
  padding-top:20px;
  border-top:1px solid var(--line);
  font-size:12.5px;
  color:var(--faint);
}
.to-top{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  width:40px;
  height:40px;
  border-radius:50%;
  border:1px solid var(--line);
  background:rgba(255,255,255,.04);
  color:var(--muted);
  font-size:16px;
  transition:border-color .18s ease, color .18s ease, transform .18s ease;
}
.to-top:hover{
  color:var(--primary);
  border-color:var(--line-strong);
  transform:translateY(-2px);
}

/* 响应式 */
@media (max-width:1023px){
  .nav-links{display:none;}
  .nav-actions .btn{display:none;}
  .nav-toggle{display:inline-flex;margin-left:auto;}
  .nav-panel{padding:10px 12px;}
  .article-grid{display:flex;flex-direction:column;gap:24px;}
  .article-side{
    position:static;
    display:grid;
    grid-template-columns:repeat(2,minmax(0,1fr));
    gap:16px;
    order:-1;
    width:100%;
  }
  .toc-card{grid-column:1 / -1;}
  .article-hero{padding:48px 0 42px;}
  .main-wrap{padding:44px 0 64px;}
  .cta-panel{flex-direction:column;align-items:flex-start;padding:26px;}
  .cta-actions{width:100%;flex-wrap:wrap;}
  .footer-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
}
@media (max-width:767px){
  .container{padding-left:18px;padding-right:18px;}
  .article-card{padding:22px 20px;}
  .article-body{font-size:16px;}
  .article-side{grid-template-columns:1fr;}
  .related-grid{grid-template-columns:1fr;}
  .read-meta{gap:10px;}
  .faq-answer{padding-left:20px;}
  .footer-grid{grid-template-columns:1fr;gap:26px;}
  .footer-bottom{font-size:12px;}
}
@media (max-width:520px){
  .site-header{padding-top:8px;}
  .brand-text{font-size:14.5px;}
  .brand-mark{width:32px;height:32px;font-size:16px;}
  .read-title{font-size:30px;}
  .read-summary{font-size:15.5px;}
  .hero-badges{gap:8px;}
  .cta-actions .btn{width:100%;}
  .drawer-grid{grid-template-columns:1fr;}
}

/* roulang page: category3 */
:root{
  --bg-950:#070D18;
  --bg-900:#0B1526;
  --panel:#101C2F;
  --panel-glass:rgba(16,28,47,.62);
  --line:rgba(255,255,255,.10);
  --line-strong:rgba(255,255,255,.18);
  --text:#F3F7FF;
  --muted:#A9B7CC;
  --faint:#718096;
  --primary:#39E6D0;
  --primary-strong:#13C9B2;
  --secondary:#B388FF;
  --accent:#FFB86B;
  --danger:#FF7A7A;
  --radius-lg:24px;
  --radius-md:16px;
  --radius-sm:14px;
  --shadow-glass:0 24px 60px rgba(0,0,0,.35), inset 0 1px rgba(255,255,255,.06);
  --shadow-card:0 18px 42px rgba(0,0,0,.30), inset 0 1px rgba(255,255,255,.05);
  --container:1240px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  background-color:var(--bg-950);
  color:var(--text);
  font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC","Hiragino Sans GB",sans-serif;
  font-size:16px;
  line-height:1.8;
  -webkit-font-smoothing:antialiased;
}
body::before{
  content:"";
  position:fixed;
  inset:0;
  z-index:-1;
  pointer-events:none;
  background-image:
    radial-gradient(620px 420px at 10% -6%, rgba(57,230,208,.14), transparent 70%),
    radial-gradient(760px 520px at 90% 6%, rgba(179,136,255,.13), transparent 72%),
    radial-gradient(rgba(255,255,255,.045) 1px, transparent 1px);
  background-size:auto,auto,24px 24px;
  background-repeat:no-repeat,no-repeat,repeat;
}
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;transition:color .18s ease,border-color .18s ease,background-color .18s ease;}
a:hover{color:var(--primary);}
button{font-family:inherit;cursor:pointer;}
input,textarea,select{font-family:inherit;font-size:15px;}
h1,h2,h3,h4{margin:0;line-height:1.22;letter-spacing:0;font-weight:700;}
p{margin:0;}
ul{margin:0;padding:0;list-style:none;}
:focus-visible{outline:2px solid var(--primary);outline-offset:3px;border-radius:6px;}
.container{
  width:100%;
  max-width:var(--container);
  margin:0 auto;
  padding:0 24px;
}
#top{display:block;height:0;}

/* ---------- 顶部导航 ---------- */
.site-header{
  position:sticky;
  top:0;
  z-index:60;
  padding:16px 0 0;
}
.nav-panel{
  display:flex;
  align-items:center;
  gap:22px;
  min-height:78px;
  padding:14px 20px;
  border-radius:20px;
  border:1px solid var(--line);
  background:var(--panel-glass);
  -webkit-backdrop-filter:blur(16px);
  backdrop-filter:blur(16px);
  box-shadow:var(--shadow-glass);
}
.brand{
  display:inline-flex;
  align-items:center;
  gap:10px;
  flex:none;
  font-weight:800;
  font-size:17px;
  letter-spacing:.4px;
}
.brand-mark{
  width:36px;height:36px;
  display:flex;align-items:center;justify-content:center;
  border-radius:12px;
  background:linear-gradient(140deg,var(--primary),var(--primary-strong));
  color:#04212B;
  font-size:16px;
  font-weight:800;
  box-shadow:0 0 0 1px rgba(57,230,208,.30),0 0 22px rgba(57,230,208,.30);
}
.brand-text{white-space:nowrap;}
.nav-links{
  display:flex;
  align-items:center;
  gap:6px;
  margin-left:auto;
}
.nav-link{
  position:relative;
  display:inline-flex;
  align-items:center;
  gap:7px;
  padding:10px 14px;
  border-radius:12px;
  border:1px solid transparent;
  font-size:14.5px;
  color:var(--muted);
  white-space:nowrap;
}
.nav-link:hover{
  color:var(--text);
  background:rgba(255,255,255,.06);
  border-color:var(--line);
}
.nav-link.active{
  color:var(--text);
  background:rgba(57,230,208,.10);
  border-color:rgba(57,230,208,.34);
  box-shadow:0 0 22px rgba(57,230,208,.14);
}
.nav-link.active::before{
  content:"";
  width:6px;height:6px;
  border-radius:50%;
  background:var(--primary);
  box-shadow:0 0 10px var(--primary);
}
.nav-actions{
  display:flex;
  align-items:center;
  gap:10px;
  flex:none;
}
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  min-height:46px;
  padding:12px 22px;
  border-radius:var(--radius-sm);
  border:1px solid transparent;
  font-size:15px;
  font-weight:600;
  white-space:nowrap;
  transition:transform .18s ease,box-shadow .18s ease,background-color .18s ease,border-color .18s ease,color .18s ease;
}
.btn-sm{min-height:40px;padding:9px 16px;font-size:14px;}
.btn-primary{
  background:linear-gradient(135deg,var(--primary),var(--primary-strong));
  color:#04212B;
  box-shadow:0 0 0 1px rgba(57,230,208,.25),0 0 24px rgba(57,230,208,.28);
}
.btn-primary:hover{
  color:#04212B;
  transform:translateY(-1px);
  box-shadow:0 0 0 1px rgba(57,230,208,.40),0 0 36px rgba(57,230,208,.42);
}
.btn-primary:active{transform:translateY(1px);}
.btn-ghost{
  background:rgba(255,255,255,.04);
  border-color:var(--line-strong);
  color:var(--text);
}
.btn-ghost:hover{
  color:var(--primary);
  border-color:rgba(57,230,208,.55);
  background:rgba(57,230,208,.08);
}
.arrow{display:inline-block;transition:transform .18s ease;}
.btn:hover .arrow{transform:translateX(2px);}
.nav-toggle{
  display:none;
  position:relative;
  width:44px;height:44px;
  flex:none;
  margin-left:auto;
  border-radius:12px;
  border:1px solid var(--line);
  background:rgba(255,255,255,.05);
}
.nav-toggle span,
.nav-toggle span::before,
.nav-toggle span::after{
  content:"";
  position:absolute;
  left:50%;
  width:18px;height:2px;
  border-radius:2px;
  background:var(--text);
  transform:translateX(-50%);
  transition:transform .2s ease,opacity .2s ease;
}
.nav-toggle span{top:50%;margin-top:-1px;}
.nav-toggle span::before{top:-6px;}
.nav-toggle span::after{top:6px;}
.nav-toggle[aria-expanded="true"] span{background:transparent;}
.nav-toggle[aria-expanded="true"] span::before{transform:translateX(-50%) rotate(45deg);top:0;}
.nav-toggle[aria-expanded="true"] span::after{transform:translateX(-50%) rotate(-45deg);top:0;}
.mobile-drawer{
  display:none;
  max-width:var(--container);
  margin:10px auto 0;
  padding:16px;
  border-radius:20px;
  border:1px solid var(--line);
  background:var(--panel-glass);
  -webkit-backdrop-filter:blur(16px);
  backdrop-filter:blur(16px);
  box-shadow:var(--shadow-glass);
}
.mobile-drawer.open{display:block;}
.drawer-grid{
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:10px;
}
.drawer-link{
  display:flex;
  align-items:center;
  min-height:48px;
  padding:10px 14px;
  border-radius:12px;
  border:1px solid var(--line);
  background:rgba(255,255,255,.04);
  font-size:15px;
  color:var(--muted);
}
.drawer-link.active{
  color:var(--text);
  border-color:rgba(57,230,208,.40);
  background:rgba(57,230,208,.10);
}
.drawer-cta{margin-top:12px;}
.drawer-cta .btn{width:100%;}

/* ---------- 通用版块 ---------- */
.section{padding:72px 0;}
.section-tight{padding:48px 0;}
.eyebrow{
  display:inline-flex;
  align-items:center;
  gap:8px;
  padding:6px 14px;
  border-radius:999px;
  border:1px solid rgba(57,230,208,.30);
  background:rgba(57,230,208,.08);
  color:var(--primary);
  font-size:13px;
  letter-spacing:.6px;
}
.eyebrow::before{
  content:"";
  width:6px;height:6px;border-radius:50%;
  background:var(--primary);
  box-shadow:0 0 10px var(--primary);
}
.h2{font-size:clamp(26px,3vw,34px);}
.section-head{
  display:flex;
  align-items:flex-end;
  justify-content:space-between;
  gap:24px;
  flex-wrap:wrap;
  margin-bottom:32px;
}
.section-head p{color:var(--muted);font-size:15px;max-width:620px;}
.muted{color:var(--muted);}
.faint{color:var(--faint);font-size:13.5px;}

/* ---------- 面包屑 ---------- */
.crumb{
  display:flex;
  align-items:center;
  gap:8px;
  flex-wrap:wrap;
  font-size:13.5px;
  color:var(--faint);
  padding:22px 0 0;
}
.crumb a{color:var(--muted);}
.crumb span.sep{color:rgba(255,255,255,.22);}
.crumb strong{color:var(--primary);font-weight:600;}

/* ---------- 帮助中心首屏 ---------- */
.help-hero{
  position:relative;
  margin-top:22px;
  padding:44px 40px;
  border-radius:28px;
  border:1px solid var(--line);
  overflow:hidden;
  background-image:
    linear-gradient(115deg, rgba(7,13,24,.95) 0%, rgba(7,13,24,.80) 52%, rgba(9,18,32,.94) 100%),
    url('/assets/images/backpic/back-2.webp');
  background-size:cover;
  background-position:center;
  box-shadow:var(--shadow-glass);
}
.help-hero::after{
  content:"";
  position:absolute;
  right:-120px;top:-140px;
  width:420px;height:420px;
  border-radius:50%;
  background:radial-gradient(circle, rgba(179,136,255,.26), transparent 68%);
  pointer-events:none;
}
.hero-inner{
  position:relative;
  z-index:2;
  display:grid;
  grid-template-columns:1.45fr .9fr;
  gap:40px;
  align-items:start;
}
.hero-copy h1{
  margin:18px 0 0;
  font-size:clamp(30px,3.6vw,46px);
  font-weight:800;
  line-height:1.2;
}
.hero-copy h1 em{
  font-style:normal;
  color:var(--primary);
}
.hero-desc{
  margin-top:16px;
  max-width:56ch;
  color:var(--muted);
  font-size:15.5px;
  line-height:1.85;
}
.search-box{
  display:flex;
  gap:10px;
  margin-top:24px;
  max-width:560px;
}
.search-box input{
  flex:1;
  min-height:48px;
  padding:0 16px;
  border-radius:12px;
  border:1px solid var(--line);
  background:rgba(7,13,24,.72);
  color:var(--text);
  transition:border-color .18s ease,box-shadow .18s ease,background-color .18s ease;
}
.search-box input::placeholder{color:var(--faint);}
.search-box input:focus{
  outline:none;
  border-color:rgba(57,230,208,.60);
  box-shadow:0 0 0 3px rgba(57,230,208,.18);
  background:rgba(7,13,24,.92);
}
.tag-row{
  display:flex;
  flex-wrap:wrap;
  gap:9px;
  margin-top:18px;
}
.chip{
  display:inline-flex;
  align-items:center;
  gap:6px;
  padding:7px 14px;
  border-radius:999px;
  border:1px solid var(--line);
  background:rgba(255,255,255,.05);
  color:var(--muted);
  font-size:13.5px;
  transition:border-color .18s ease,color .18s ease,background-color .18s ease,transform .18s ease;
}
.chip:hover{
  color:var(--primary);
  border-color:rgba(57,230,208,.50);
  background:rgba(57,230,208,.10);
  transform:translateY(-2px);
}
.status-card{
  border-radius:var(--radius-lg);
  border:1px solid var(--line);
  background:rgba(11,21,38,.78);
  -webkit-backdrop-filter:blur(14px);
  backdrop-filter:blur(14px);
  box-shadow:var(--shadow-card);
  padding:24px;
}
.status-card h3{
  font-size:16px;
  display:flex;
  align-items:center;
  gap:9px;
  color:var(--text);
}
.status-card h3::before{
  content:"";
  width:8px;height:8px;border-radius:50%;
  background:var(--primary);
  box-shadow:0 0 0 4px rgba(57,230,208,.16);
}
.status-row{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:14px;
  padding:14px 0;
  border-bottom:1px dashed rgba(255,255,255,.10);
  font-size:14px;
}
.status-row:last-of-type{border-bottom:none;}
.status-row strong{
  font-size:19px;
  font-weight:700;
  color:var(--primary);
  font-variant-numeric:tabular-nums;
}
.status-row span{color:var(--muted);}
.status-note{
  margin-top:10px;
  padding:12px 14px;
  border-radius:12px;
  border:1px solid rgba(179,136,255,.26);
  background:rgba(179,136,255,.10);
  color:#D6C8FF;
  font-size:13px;
  line-height:1.7;
}

/* ---------- 帮助主体布局 ---------- */
.help-layout{
  display:grid;
  grid-template-columns:minmax(0,1.55fr) minmax(0,.85fr);
  gap:28px;
  align-items:start;
}
.faq-list{display:grid;gap:12px;}
.faq-item{
  border:1px solid var(--line);
  border-radius:18px;
  background:rgba(255,255,255,.03);
  transition:border-color .2s ease,background-color .2s ease,box-shadow .2s ease;
  overflow:hidden;
}
.faq-item:hover{border-color:var(--line-strong);background:rgba(255,255,255,.05);}
.faq-item[open]{
  border-color:rgba(57,230,208,.40);
  background:rgba(57,230,208,.06);
  box-shadow:0 0 0 1px rgba(57,230,208,.16),0 18px 40px rgba(0,0,0,.28);
}
.faq-item summary{
  display:flex;
  align-items:flex-start;
  gap:14px;
  padding:18px 20px;
  font-size:16.5px;
  font-weight:600;
  color:var(--text);
  cursor:pointer;
  list-style:none;
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-num{
  flex:none;
  padding-top:2px;
  font-size:13px;
  font-weight:700;
  color:var(--primary);
  letter-spacing:1px;
  font-variant-numeric:tabular-nums;
}
.faq-toggle{
  flex:none;
  margin-left:auto;
  width:28px;height:28px;
  display:flex;align-items:center;justify-content:center;
  border-radius:50%;
  border:1px solid var(--line-strong);
  color:var(--primary);
  font-size:16px;
  line-height:1;
  transition:transform .2s ease,background-color .2s ease,border-color .2s ease;
}
.faq-item[open] .faq-toggle{
  transform:rotate(45deg);
  background:rgba(57,230,208,.16);
  border-color:rgba(57,230,208,.55);
}
.faq-answer{
  padding:0 20px 20px 48px;
  margin-left:2px;
  border-left:2px solid rgba(57,230,208,.55);
  margin-left:20px;
  color:var(--muted);
  font-size:15px;
  line-height:1.85;
}
.faq-answer p + p{margin-top:10px;}

/* ---------- 侧栏 ---------- */
.side-sticky{
  position:sticky;
  top:112px;
  display:grid;
  gap:18px;
}
.side-card{
  padding:22px;
  border-radius:20px;
  border:1px solid var(--line);
  background:var(--panel);
  box-shadow:var(--shadow-card);
}
.side-card h3{
  font-size:16px;
  margin-bottom:12px;
}
.side-list{display:grid;gap:8px;}
.side-list a{
  display:flex;
  align-items:center;
  gap:10px;
  padding:11px 13px;
  border-radius:12px;
  border:1px solid transparent;
  background:rgba(255,255,255,.03);
  color:var(--muted);
  font-size:14px;
  transition:border-color .18s ease,color .18s ease,background-color .18s ease,transform .18s ease;
}
.side-list a::before{
  content:"";
  width:6px;height:6px;border-radius:2px;
  background:var(--primary);
  opacity:.7;
  flex:none;
}
.side-list a:hover{
  color:var(--text);
  background:rgba(57,230,208,.09);
  border-color:rgba(57,230,208,.40);
  transform:translateX(2px);
}
.side-card.contact{
  border-color:rgba(179,136,255,.28);
  background:linear-gradient(160deg,rgba(179,136,255,.14),rgba(16,28,47,.92));
}
.side-card.contact p{
  color:var(--muted);
  font-size:13.5px;
  line-height:1.75;
}
.form-field{
  display:block;
  margin:14px 0 10px;
}
.form-field span{
  display:block;
  margin-bottom:6px;
  font-size:13px;
  color:var(--muted);
}
.form-field input,
.form-field textarea{
  width:100%;
  min-height:46px;
  padding:11px 14px;
  border-radius:12px;
  border:1px solid var(--line);
  background:rgba(7,13,24,.75);
  color:var(--text);
  transition:border-color .18s ease,box-shadow .18s ease;
}
.form-field textarea{min-height:92px;resize:vertical;line-height:1.7;}
.form-field input::placeholder,
.form-field textarea::placeholder{color:var(--faint);}
.form-field input:focus,
.form-field textarea:focus{
  outline:none;
  border-color:rgba(57,230,208,.60);
  box-shadow:0 0 0 3px rgba(57,230,208,.16);
}
.form-help{
  display:block;
  margin-top:8px;
  font-size:12.5px;
  color:var(--faint);
  line-height:1.6;
}
.side-card .btn{width:100%;margin-top:4px;}

/* ---------- 提示对照 ---------- */
.hint-list{display:grid;gap:12px;}
.hint-row{
  display:grid;
  grid-template-columns:1.05fr 1fr 1.3fr;
  gap:18px;
  align-items:center;
  padding:18px 20px;
  border-radius:16px;
  border:1px solid var(--line);
  background:rgba(255,255,255,.03);
  transition:border-color .18s ease,background-color .18s ease,transform .18s ease;
}
.hint-row:hover{
  border-color:rgba(57,230,208,.34);
  background:rgba(57,230,208,.05);
  transform:translateY(-2px);
}
.hint-row strong{
  font-size:15px;
  color:var(--text);
  font-weight:600;
}
.hint-row .hint-cause{color:var(--muted);font-size:14px;}
.hint-row .hint-act{
  color:var(--text);
  font-size:14px;
  padding-left:14px;
  border-left:1px solid rgba(57,230,208,.30);
}
.hint-head{
  display:grid;
  grid-template-columns:1.05fr 1fr 1.3fr;
  gap:18px;
  padding:0 20px 4px;
  font-size:12.5px;
  letter-spacing:1px;
  color:var(--faint);
}

/* ---------- 支持说明 ---------- */
.support-grid{
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:28px;
  align-items:stretch;
}
.support-media{
  position:relative;
  border-radius:var(--radius-lg);
  overflow:hidden;
  border:1px solid var(--line);
  box-shadow:var(--shadow-card);
  min-height:320px;
}
.support-media img{
  width:100%;height:100%;
  object-fit:cover;
}
.support-media::after{
  content:"";
  position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(7,13,24,.10),rgba(7,13,24,.78));
}
.support-media .media-tag{
  position:absolute;
  left:20px;bottom:20px;
  z-index:2;
  display:inline-flex;
  align-items:center;
  gap:8px;
  padding:8px 14px;
  border-radius:999px;
  border:1px solid rgba(57,230,208,.36);
  background:rgba(7,13,24,.70);
  color:var(--primary);
  font-size:13px;
  -webkit-backdrop-filter:blur(10px);
  backdrop-filter:blur(10px);
}
.support-body{
  border-radius:var(--radius-lg);
  border:1px solid var(--line);
  background:var(--panel);
  padding:28px;
  box-shadow:var(--shadow-card);
}
.support-body h2{font-size:clamp(24px,2.6vw,30px);margin-bottom:14px;}
.support-body p{color:var(--muted);font-size:15px;line-height:1.85;}
.support-points{
  display:grid;
  gap:12px;
  margin-top:20px;
}
.support-points li{
  display:flex;
  gap:12px;
  align-items:flex-start;
  font-size:14.5px;
  color:var(--muted);
}
.support-points li b{
  flex:none;
  display:inline-flex;
  align-items:center;
  justify-content:center;
  min-width:26px;height:26px;
  border-radius:8px;
  border:1px solid rgba(57,230,208,.35);
  background:rgba(57,230,208,.10);
  color:var(--primary);
  font-size:12.5px;
}

/* ---------- CTA ---------- */
.cta-panel{
  position:relative;
  overflow:hidden;
  display:grid;
  grid-template-columns:1.35fr .85fr;
  gap:32px;
  align-items:center;
  padding:40px;
  border-radius:28px;
  border:1px solid rgba(57,230,208,.26);
  background:linear-gradient(120deg,rgba(57,230,208,.12),rgba(179,136,255,.12) 60%,rgba(16,28,47,.94));
  box-shadow:var(--shadow-glass);
}
.cta-panel::after{
  content:"";
  position:absolute;
  right:-80px;bottom:-120px;
  width:340px;height:340px;
  border-radius:50%;
  background:radial-gradient(circle,rgba(57,230,208,.22),transparent 68%);
  pointer-events:none;
}
.cta-panel h2{font-size:clamp(24px,2.8vw,32px);position:relative;z-index:2;}
.cta-panel p{
  margin-top:12px;
  color:var(--muted);
  font-size:15px;
  max-width:52ch;
  position:relative;
  z-index:2;
}
.cta-actions{
  position:relative;
  z-index:2;
  display:flex;
  flex-wrap:wrap;
  gap:12px;
  justify-content:flex-end;
}

/* ---------- 页脚 ---------- */
.site-footer{
  margin-top:64px;
  padding:56px 0 28px;
  border-top:1px solid var(--line);
  background:linear-gradient(180deg,rgba(11,21,38,.85),rgba(7,13,24,.98));
}
.footer-grid{
  display:grid;
  grid-template-columns:1.4fr .8fr .9fr 1.1fr;
  gap:32px;
}
.footer-brand p{
  margin-top:14px;
  color:var(--muted);
  font-size:14px;
  line-height:1.85;
  max-width:34ch;
}
.footer-col h4{
  font-size:14px;
  letter-spacing:.5px;
  color:var(--text);
  margin-bottom:14px;
}
.footer-col ul{display:grid;gap:9px;}
.footer-col ul a{
  color:var(--muted);
  font-size:14px;
}
.footer-col ul a:hover{color:var(--primary);}
.footer-sub p{color:var(--muted);font-size:13.5px;line-height:1.75;}
.footer-sub form{margin-top:6px;}
.footer-sub .btn{margin-top:10px;}
.footer-bottom{
  margin-top:40px;
  padding-top:20px;
  border-top:1px solid var(--line);
  display:flex;
  align-items:center;
  gap:18px;
  flex-wrap:wrap;
  font-size:13px;
  color:var(--faint);
}
.footer-bottom span:nth-child(2){margin-right:auto;}
.to-top{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  width:42px;height:42px;
  border-radius:50%;
  border:1px solid var(--line-strong);
  background:rgba(255,255,255,.05);
  color:var(--text);
  font-size:16px;
  transition:border-color .18s ease,background-color .18s ease,transform .18s ease,color .18s ease;
}
.to-top:hover{
  color:var(--primary);
  border-color:rgba(57,230,208,.55);
  background:rgba(57,230,208,.10);
  transform:translateY(-2px);
}

/* ---------- 响应式 ---------- */
@media (max-width:1180px){
  .help-layout{grid-template-columns:1fr;}
  .side-sticky{position:static;}
  .hero-inner{grid-template-columns:1fr;gap:28px;}
  .hint-row,.hint-head{grid-template-columns:1fr 1fr;}
  .hint-row .hint-act{grid-column:1 / -1;border-left:none;padding-left:0;border-top:1px dashed rgba(255,255,255,.10);padding-top:10px;}
  .hint-head span:last-child{display:none;}
}
@media (max-width:1023px){
  .nav-links,.nav-actions{display:none;}
  .nav-toggle{display:block;}
  .nav-panel{gap:14px;min-height:70px;padding:12px 16px;}
  .help-hero{padding:34px 26px;}
  .footer-grid{grid-template-columns:1fr 1fr;}
  .support-grid{grid-template-columns:1fr;}
  .cta-panel{grid-template-columns:1fr;padding:32px 26px;}
  .cta-actions{justify-content:flex-start;}
}
@media (max-width:768px){
  .container{padding:0 20px;}
  .section{padding:52px 0;}
  .section-tight{padding:36px 0;}
  .help-hero{padding:28px 20px;border-radius:22px;}
  .hero-copy h1{font-size:31px;}
  .search-box{flex-direction:column;}
  .search-box .btn{width:100%;}
  .faq-answer{padding:0 18px 18px 18px;margin-left:14px;}
  .faq-item summary{font-size:15.5px;padding:16px;}
  .hint-row,.hint-head{grid-template-columns:1fr;gap:8px;}
  .hint-head{display:none;}
  .hint-row .hint-cause{font-size:13.5px;}
  .support-body{padding:22px;}
  .cta-panel{padding:26px 20px;border-radius:22px;}
  .footer-grid{grid-template-columns:1fr;gap:26px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;gap:10px;}
  .footer-bottom span:nth-child(2){margin-right:0;}
}
@media (max-width:520px){
  .drawer-grid{grid-template-columns:1fr;}
  .brand-text{font-size:15.5px;}
  .hero-copy h1{font-size:27px;}
  .status-card{padding:18px;}
  .faq-item summary{font-size:15px;}
  .btn{width:100%;}
  .nav-panel .btn-sm{width:auto;}
  .cta-actions .btn{width:100%;}
}

/* roulang page: category2 */
:root{
  --bg-950:#070D18;
  --bg-900:#0B1526;
  --panel:#101C2F;
  --panel-glass:rgba(16,28,47,.62);
  --line:rgba(255,255,255,.10);
  --line-strong:rgba(255,255,255,.20);
  --text:#F3F7FF;
  --muted:#A9B7CC;
  --faint:#718096;
  --primary:#39E6D0;
  --primary-strong:#13C9B2;
  --secondary:#B388FF;
  --accent:#FFB86B;
  --danger:#FF7A7A;
  --radius-lg:24px;
  --radius-md:16px;
  --radius-sm:12px;
  --shadow-card:0 24px 60px rgba(0,0,0,.35);
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,sans-serif;
  font-size:16px;
  line-height:1.8;
  color:var(--text);
  background-color:var(--bg-950);
  background-image:
    radial-gradient(900px 620px at 8% -6%, rgba(57,230,208,.15), transparent 62%),
    radial-gradient(820px 580px at 96% 2%, rgba(179,136,255,.16), transparent 60%),
    radial-gradient(rgba(255,255,255,.05) 1px, transparent 1px);
  background-size:auto,auto,24px 24px;
  background-attachment:fixed,fixed,fixed;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;transition:color .18s ease;}
a:focus-visible,button:focus-visible,summary:focus-visible,input:focus-visible{
  outline:2px solid var(--primary);
  outline-offset:3px;
  border-radius:10px;
}
h1,h2,h3,h4{margin:0;color:var(--text);letter-spacing:0;}
p{margin:0;}
ul,ol{margin:0;padding:0;list-style:none;}
button{font:inherit;}
.container{
  width:100%;
  max-width:1240px !important;
  margin-left:auto;
  margin-right:auto;
  padding-left:24px;
  padding-right:24px;
}

/* ============ 导航 ============ */
.site-header{position:sticky;top:0;z-index:80;padding:14px 0 0;}
.nav-panel{
  display:flex;align-items:center;gap:20px;min-height:78px;
  padding:12px 18px;border-radius:20px;
  background:rgba(13,24,40,.78);
  -webkit-backdrop-filter:blur(16px);backdrop-filter:blur(16px);
  border:1px solid var(--line);
  box-shadow:0 18px 44px rgba(0,0,0,.42),inset 0 1px rgba(255,255,255,.06);
}
.brand{display:inline-flex;align-items:center;gap:10px;flex:0 0 auto;}
.brand-mark{
  width:36px;height:36px;border-radius:12px;display:grid;place-items:center;
  font-weight:800;font-size:17px;color:#04121a;
  background:linear-gradient(135deg,var(--primary),var(--secondary));
  box-shadow:0 0 18px rgba(57,230,208,.35);
}
.brand-text{font-size:17px;font-weight:700;white-space:nowrap;}
.nav-links{display:flex;align-items:center;gap:6px;margin-left:6px;}
.nav-link{
  position:relative;display:inline-flex;align-items:center;
  padding:9px 14px;border-radius:12px;font-size:14.5px;color:var(--muted);
  border:1px solid transparent;transition:all .18s ease;
}
.nav-link:hover{color:var(--text);background:rgba(255,255,255,.05);border-color:var(--line);}
.nav-link.active{
  color:var(--primary);background:rgba(57,230,208,.10);
  border-color:rgba(57,230,208,.32);
}
.nav-link.active::before{
  content:"";width:6px;height:6px;border-radius:50%;background:var(--primary);
  box-shadow:0 0 10px var(--primary);margin-right:8px;
}
.nav-actions{margin-left:auto;display:flex;align-items:center;gap:10px;}
.nav-toggle{
  display:none;margin-left:auto;width:46px;height:46px;border-radius:14px;
  border:1px solid var(--line);background:rgba(255,255,255,.05);
  align-items:center;justify-content:center;cursor:pointer;transition:all .18s ease;
}
.nav-toggle:hover{border-color:rgba(57,230,208,.45);}
.nav-toggle span{display:block;width:18px;height:2px;background:var(--text);position:relative;}
.nav-toggle span::before,.nav-toggle span::after{
  content:"";position:absolute;left:0;width:18px;height:2px;background:var(--text);
}
.nav-toggle span::before{top:-6px;}
.nav-toggle span::after{top:6px;}
.mobile-drawer{
  display:none;position:absolute;left:16px;right:16px;top:calc(100% + 8px);
  padding:16px;border-radius:20px;background:rgba(11,21,38,.98);
  border:1px solid var(--line);box-shadow:0 26px 60px rgba(0,0,0,.55);
  -webkit-backdrop-filter:blur(18px);backdrop-filter:blur(18px);
}
body.drawer-open .mobile-drawer{display:block;}
.drawer-grid{display:grid;grid-template-columns:1fr 1fr;gap:10px;}
.drawer-link{
  padding:12px 14px;border-radius:12px;border:1px solid var(--line);
  background:rgba(255,255,255,.04);font-size:14.5px;color:var(--muted);
  transition:all .18s ease;
}
.drawer-link:hover{color:var(--text);border-color:var(--line-strong);}
.drawer-link.active{color:var(--primary);border-color:rgba(57,230,208,.35);background:rgba(57,230,208,.10);}
.drawer-cta{margin-top:12px;}
.drawer-cta .btn{width:100%;}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  border-radius:14px;padding:13px 22px;font-size:15px;font-weight:600;
  line-height:1;border:1px solid transparent;cursor:pointer;min-height:46px;
  transition:transform .18s ease,box-shadow .18s ease,background .18s ease,border-color .18s ease,color .18s ease;
}
.btn-primary{
  background:linear-gradient(135deg,var(--primary),var(--primary-strong));
  color:#04121a;
  box-shadow:0 0 0 1px rgba(57,230,208,.25),0 0 24px rgba(57,230,208,.28);
}
.btn-primary:hover{
  transform:translateY(-1px);
  box-shadow:0 0 0 1px rgba(57,230,208,.42),0 0 36px rgba(57,230,208,.40);
}
.btn-primary:active{transform:translateY(1px);}
.btn-ghost{
  background:rgba(255,255,255,.04);border-color:var(--line);color:var(--text);
}
.btn-ghost:hover{border-color:rgba(57,230,208,.55);color:var(--primary);background:rgba(57,230,208,.07);}
.btn-ghost:active{transform:translateY(1px);}
.btn-sm{padding:10px 16px;font-size:14px;min-height:44px;border-radius:12px;}
.arrow{display:inline-block;transition:transform .18s ease;}
.btn:hover .arrow{transform:translateX(2px);}

/* ============ 首屏 ============ */
.page-hero{
  position:relative;margin-top:22px;padding:56px 0 52px;
  border-radius:26px;overflow:hidden;border:1px solid var(--line);
  background-image:
    linear-gradient(115deg,rgba(7,13,24,.94),rgba(7,13,24,.70)),
    url("/assets/images/backpic/back-2.webp");
  background-size:cover,cover;
  background-position:center,center;
  box-shadow:var(--shadow-card);
}
.page-hero::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  background:
    radial-gradient(440px 280px at 88% 10%, rgba(179,136,255,.30), transparent 70%),
    radial-gradient(400px 260px at 6% 92%, rgba(57,230,208,.24), transparent 72%);
}
.hero-inner{
  position:relative;z-index:1;
  display:grid;grid-template-columns:1.22fr .78fr;gap:40px;align-items:center;
}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  padding:7px 14px;border-radius:999px;font-size:12.5px;font-weight:600;
  letter-spacing:.06em;color:var(--primary);
  background:rgba(57,230,208,.10);border:1px solid rgba(57,230,208,.32);
}
.hero-copy h1{
  font-size:clamp(30px,3.4vw,50px);line-height:1.2;font-weight:800;
  margin:18px 0 16px;max-width:16em;
}
.hero-sub{font-size:17px;line-height:1.85;color:var(--muted);max-width:34em;}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:28px;}
.hero-chips{display:flex;flex-wrap:wrap;gap:10px;margin-top:26px;}
.chip{
  display:inline-flex;align-items:center;gap:8px;
  padding:8px 15px;border-radius:999px;font-size:13px;color:var(--muted);
  background:rgba(16,28,47,.66);border:1px solid var(--line);
  -webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);
}
.chip::before{
  content:"";width:6px;height:6px;border-radius:50%;
  background:var(--primary);box-shadow:0 0 8px rgba(57,230,208,.8);
}
.side-card{
  padding:24px;border-radius:20px;
  background:rgba(13,24,40,.72);border:1px solid var(--line);
  -webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px);
  box-shadow:0 20px 50px rgba(0,0,0,.35);
}
.side-title{
  font-size:12.5px;letter-spacing:.14em;color:var(--faint);
  text-transform:uppercase;margin-bottom:14px;
}
.side-list li{
  display:flex;gap:12px;align-items:flex-start;
  padding:13px 0;border-bottom:1px solid var(--line);
}
.side-list li:last-child{border-bottom:none;padding-bottom:0;}
.side-list li:first-child{padding-top:0;}
.dot{
  flex:0 0 auto;width:9px;height:9px;border-radius:50%;margin-top:9px;
  background:var(--primary);box-shadow:0 0 10px rgba(57,230,208,.75);
}
.side-list strong{display:block;font-size:15px;font-weight:600;color:var(--text);}
.side-list small{display:block;font-size:13px;color:var(--faint);line-height:1.6;}

/* ============ 双栏布局 ============ */
.section{padding:64px 0 0;}
.layout{display:grid;grid-template-columns:258px minmax(0,1fr);gap:34px;align-items:start;}
.toc{
  position:sticky;top:104px;padding:22px;border-radius:20px;
  background:rgba(16,28,47,.72);border:1px solid var(--line);
  -webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px);
  box-shadow:var(--shadow-card);
}
.toc-title{font-size:12.5px;letter-spacing:.14em;color:var(--faint);margin-bottom:14px;}
.toc-nav{display:flex;flex-direction:column;gap:4px;}
.toc-link{
  display:flex;align-items:center;padding:9px 12px;border-radius:11px;
  font-size:14.5px;color:var(--muted);
  border-left:2px solid transparent;transition:all .18s ease;
}
.toc-link:hover{color:var(--text);background:rgba(255,255,255,.05);}
.toc-link.active{
  color:var(--primary);background:rgba(57,230,208,.10);
  border-left-color:var(--primary);
}
.toc-help{
  margin-top:18px;padding-top:16px;border-top:1px solid var(--line);
  font-size:13px;color:var(--faint);line-height:1.7;
}
.toc-help p{margin-bottom:10px;}
.toc-help .btn{width:100%;}

.content{min-width:0;}
.block{
  padding:28px;border-radius:22px;margin-bottom:22px;
  background:linear-gradient(180deg,rgba(16,28,47,.94),rgba(11,21,38,.94));
  border:1px solid var(--line);
  box-shadow:0 18px 44px rgba(0,0,0,.28);
}
.block-num{
  display:inline-flex;align-items:center;justify-content:center;
  min-width:44px;height:28px;padding:0 10px;border-radius:999px;
  background:rgba(57,230,208,.12);border:1px solid rgba(57,230,208,.32);
  color:var(--primary);font-size:12.5px;font-weight:700;letter-spacing:.08em;
  margin-bottom:14px;
}
.block h2{font-size:clamp(22px,2.2vw,28px);line-height:1.32;margin-bottom:14px;}
.block h3{font-size:17px;font-weight:700;margin:0 0 8px;}
.block p{color:var(--muted);font-size:16px;line-height:1.85;margin-bottom:14px;}
.block p:last-child{margin-bottom:0;}
.media-row{
  display:grid;grid-template-columns:minmax(0,1fr) minmax(0,.9fr);
  gap:26px;align-items:center;margin-top:22px;
}
.media-row.reverse .media-fig{order:-1;}
.media-fig{
  margin:0;border-radius:var(--radius-md);overflow:hidden;
  border:1px solid var(--line);background:rgba(7,13,24,.6);
  transition:transform .22s ease,border-color .22s ease,box-shadow .22s ease;
}
.media-fig:hover{
  transform:translateY(-4px);border-color:rgba(57,230,208,.42);
  box-shadow:0 0 28px rgba(57,230,208,.16);
}
.media-fig img{width:100%;aspect-ratio:16/10;object-fit:cover;}
.media-fig figcaption{
  font-size:12.5px;color:var(--faint);padding:10px 14px;
  background:rgba(7,13,24,.78);border-top:1px solid var(--line);
}
.ticks{display:flex;flex-direction:column;gap:10px;}
.ticks li{
  position:relative;padding-left:24px;font-size:15px;
  color:var(--muted);line-height:1.78;
}
.ticks li::before{
  content:"";position:absolute;left:0;top:.66em;width:8px;height:8px;
  border-radius:50%;background:var(--primary);
  box-shadow:0 0 10px rgba(57,230,208,.6);
}
.mini-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:14px;margin-top:22px;}
.mini-card{
  padding:18px;border-radius:var(--radius-md);
  background:rgba(7,13,24,.58);border:1px solid var(--line);
  transition:transform .2s ease,border-color .2s ease,background .2s ease;
}
.mini-card:hover{
  transform:translateY(-3px);border-color:rgba(57,230,208,.42);
  background:rgba(57,230,208,.06);
}
.mini-card h3{font-size:16px;margin-bottom:8px;}
.mini-card p{font-size:13.5px;color:var(--faint);line-height:1.7;margin:0;}

.table-wrap{
  overflow-x:auto;margin-top:22px;border-radius:var(--radius-md);
  border:1px solid var(--line);
}
.cmp-table{width:100%;border-collapse:collapse;min-width:660px;font-size:14.5px;}
.cmp-table th{
  background:rgba(57,230,208,.09);color:var(--text);font-weight:700;
  text-align:left;padding:14px 16px;border-bottom:1px solid var(--line);
  white-space:nowrap;
}
.cmp-table td{
  padding:14px 16px;border-bottom:1px solid var(--line);
  color:var(--muted);vertical-align:top;line-height:1.7;
}
.cmp-table tbody tr:last-child td{border-bottom:none;}
.cmp-table tbody tr:hover td{background:rgba(255,255,255,.035);color:var(--text);}

/* ============ FAQ ============ */
.faq-section{padding:64px 0 0;}
.section-head{max-width:660px;margin-bottom:8px;}
.section-head h2{font-size:clamp(24px,2.6vw,32px);line-height:1.3;margin:14px 0 12px;}
.section-head p{color:var(--muted);font-size:15.5px;}
.faq-list{display:flex;flex-direction:column;gap:12px;margin-top:28px;}
.faq-item{
  border:1px solid var(--line);border-left:3px solid transparent;
  border-radius:var(--radius-md);background:rgba(16,28,47,.68);
  transition:border-color .2s ease,background .2s ease;
}
.faq-item:hover{border-color:rgba(255,255,255,.18);border-left-color:rgba(57,230,208,.5);}
.faq-item[open]{
  border-left-color:var(--primary);
  background:rgba(16,28,47,.95);
  box-shadow:0 16px 40px rgba(0,0,0,.3);
}
.faq-item summary{
  display:flex;align-items:center;gap:14px;padding:18px 22px;
  cursor:pointer;list-style:none;font-size:16.5px;font-weight:600;color:var(--text);
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item .idx{
  font-size:13px;font-weight:700;letter-spacing:.06em;color:var(--primary);
  flex:0 0 auto;
}
.faq-item .plus{
  margin-left:auto;color:var(--faint);font-size:20px;line-height:1;
  transition:transform .2s ease,color .2s ease;flex:0 0 auto;
}
.faq-item[open] .plus{transform:rotate(45deg);color:var(--primary);}
.faq-item .answer{
  padding:0 22px 20px 22px;color:var(--muted);font-size:15px;line-height:1.85;
}

/* ============ CTA ============ */
.cta-section{padding:64px 0 0;}
.cta-panel{
  position:relative;overflow:hidden;
  display:grid;grid-template-columns:1.4fr .6fr;gap:32px;align-items:center;
  padding:42px;border-radius:var(--radius-lg);
  border:1px solid rgba(57,230,208,.28);
  background:linear-gradient(120deg,rgba(19,201,178,.16),rgba(179,136,255,.14)),rgba(11,21,38,.92);
  box-shadow:0 24px 60px rgba(0,0,0,.4);
}
.cta-panel::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  background:radial-gradient(420px 260px at 88% 20%, rgba(57,230,208,.22), transparent 72%);
}
.cta-copy{position:relative;z-index:1;}
.cta-copy h2{font-size:clamp(22px,2.4vw,30px);line-height:1.32;margin-bottom:12px;}
.cta-copy p{color:var(--muted);font-size:15.5px;line-height:1.85;}
.cta-actions{
  position:relative;z-index:1;display:flex;flex-direction:column;gap:12px;
}
.cta-actions .btn{width:100%;}

/* ============ 页脚 ============ */
.site-footer{
  margin-top:96px;padding:56px 0 28px;
  border-top:1px solid var(--line);
  background:linear-gradient(180deg,rgba(16,28,47,.55),rgba(7,13,24,.94));
  -webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px);
}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.4fr;gap:32px;}
.footer-brand .brand{margin-bottom:16px;}
.footer-brand p{font-size:14px;color:var(--faint);line-height:1.8;max-width:26em;}
.footer-col h4{
  font-size:14px;font-weight:700;margin-bottom:16px;color:var(--text);
  letter-spacing:.02em;
}
.footer-col ul{display:flex;flex-direction:column;gap:10px;}
.footer-col ul a{font-size:14px;color:var(--muted);}
.footer-col ul a:hover{color:var(--primary);}
.footer-sub p{font-size:13.5px;color:var(--faint);line-height:1.75;margin-bottom:14px;}
.form-field{display:flex;flex-direction:column;gap:6px;margin-bottom:12px;}
.form-field span{font-size:12.5px;color:var(--faint);letter-spacing:.04em;}
.form-field input{
  width:100%;padding:12px 14px;border-radius:12px;
  background:rgba(7,13,24,.85);border:1px solid var(--line);
  color:var(--text);font-size:14px;transition:border-color .18s ease,box-shadow .18s ease;
}
.form-field input::placeholder{color:#5C6A80;}
.form-field input:focus{
  outline:none;border-color:rgba(57,230,208,.6);
  box-shadow:0 0 0 3px rgba(57,230,208,.16);
}
.footer-sub .btn{width:100%;}
.footer-bottom{
  margin-top:44px;padding-top:22px;border-top:1px solid var(--line);
  display:flex;flex-wrap:wrap;align-items:center;gap:16px;
  font-size:13px;color:var(--faint);
}
.footer-bottom .to-top{
  margin-left:auto;width:42px;height:42px;border-radius:50%;
  display:inline-flex;align-items:center;justify-content:center;
  border:1px solid var(--line);color:var(--muted);font-size:16px;
  background:rgba(255,255,255,.04);
  transition:all .18s ease;
}
.footer-bottom .to-top:hover{
  color:var(--primary);border-color:rgba(57,230,208,.55);
  box-shadow:0 0 22px rgba(57,230,208,.25);transform:translateY(-2px);
}

/* ============ 响应式 ============ */
@media (max-width:1023px){
  .nav-links,.nav-actions{display:none;}
  .nav-toggle{display:flex;}
  .hero-inner{grid-template-columns:1fr;gap:28px;}
  .hero-copy h1{max-width:none;}
  .layout{grid-template-columns:1fr;gap:24px;}
  .toc{position:static;top:auto;}
  .toc-nav{flex-direction:row;flex-wrap:wrap;}
  .toc-link{border-left:none;border-bottom:2px solid transparent;}
  .toc-link.active{border-left:none;border-bottom-color:var(--primary);}
  .media-row{grid-template-columns:1fr;gap:20px;}
  .media-row.reverse .media-fig{order:0;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px;}
  .cta-panel{grid-template-columns:1fr;padding:32px;}
}
@media (max-width:767px){
  .mini-grid{grid-template-columns:1fr;}
  .page-hero{padding:40px 0 38px;border-radius:20px;}
  .hero-sub{font-size:15.5px;}
  .section,.faq-section,.cta-section{padding-top:48px;}
  .block{padding:22px;border-radius:18px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
  .footer-bottom .to-top{margin-left:0;align-self:flex-end;}
}
@media (max-width:639px){
  .container{padding-left:18px;padding-right:18px;}
  .nav-panel{min-height:70px;padding:10px 14px;gap:12px;}
  .brand-text{font-size:15.5px;}
  .brand-mark{width:32px;height:32px;font-size:15px;border-radius:10px;}
  .drawer-grid{grid-template-columns:1fr;}
  .hero-copy h1{font-size:30px;}
  .hero-actions .btn{width:100%;}
  .side-card{padding:20px;}
  .footer-grid{grid-template-columns:1fr;}
  .faq-item summary{padding:16px 16px;font-size:15.5px;gap:10px;}
  .faq-item .answer{padding:0 16px 18px 16px;font-size:14.5px;}
  .cta-panel{padding:24px;border-radius:20px;}
  .block h2{font-size:21px;}
}