/* roulang page: index */
:root{
  --bg-0:#05070F;
  --bg-1:#0A1020;
  --bg-2:#111A2E;
  --line:rgba(120,180,255,0.16);
  --line-strong:rgba(120,180,255,0.32);
  --text-1:#E9F1FF;
  --text-2:#A6B6D0;
  --text-3:#6F7F9B;
  --primary:#37C2FF;
  --primary-2:#8A6BFF;
  --action:#2BE8A6;
  --warn:#FFB347;
  --danger:#FF6B6B;
  --glass:rgba(255,255,255,0.045);
  --glass-solid:rgba(17,26,46,0.85);
  --radius:18px;
  --radius-md:14px;
  --radius-sm:12px;
  --radius-badge:6px;
  --shadow-card:0 24px 60px -28px rgba(0,0,0,0.85), inset 0 1px 0 rgba(255,255,255,0.07);
  --ease:cubic-bezier(.22,.61,.36,1);
  --max:1200px;
  --font-cn:"PingFang SC","HarmonyOS Sans SC","Source Han Sans SC","Microsoft YaHei",sans-serif;
  --font-num:"Space Grotesk","Inter",ui-monospace,SFMono-Regular,Menlo,monospace;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--bg-0);
  color:var(--text-1);
  font-family:var(--font-cn);
  font-size:17px;
  line-height:1.8;
  font-weight:400;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
h1,h2,h3,h4,p,ul,ol,figure,blockquote{margin:0;}
ul,ol{padding:0;list-style:none;}
img{display:block;max-width:100%;height:auto;}
a{color:inherit;text-decoration:none;transition:color 160ms var(--ease);}
button,input,select,textarea{font:inherit;color:inherit;}
button{cursor:pointer;background:none;border:0;padding:0;}
::selection{background:rgba(55,194,255,.3);color:#fff;}
:focus-visible{outline:2px solid rgba(43,232,166,.55);outline-offset:2px;border-radius:6px;}
::-webkit-scrollbar{width:10px;height:10px;}
::-webkit-scrollbar-track{background:var(--bg-1);}
::-webkit-scrollbar-thumb{background:rgba(120,180,255,0.22);border-radius:8px;}
::-webkit-scrollbar-thumb:hover{background:rgba(120,180,255,0.36);}

.container{width:100%;max-width:var(--max);margin:0 auto;padding:0 24px;}
.section{padding:96px 0;position:relative;}
.section-alt{background:linear-gradient(180deg,rgba(10,16,32,0) 0%,rgba(10,16,32,.75) 30%,rgba(10,16,32,0) 100%);}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:28px;margin-bottom:40px;}
.section-title{font-size:30px;line-height:1.25;font-weight:800;letter-spacing:0;}
.section-sub{margin-top:10px;font-size:15px;color:var(--text-2);max-width:620px;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-family:var(--font-num);font-size:12px;letter-spacing:.06em;
  color:var(--primary);text-transform:uppercase;
  padding:6px 12px;border-radius:999px;
  background:rgba(55,194,255,.1);border:1px solid rgba(55,194,255,.24);
}
.eyebrow .dot{width:6px;height:6px;border-radius:50%;background:var(--action);box-shadow:0 0 0 4px rgba(43,232,166,.16);}

/* 按钮 */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 24px;border-radius:var(--radius-sm);
  font-size:15px;font-weight:600;border:1px solid transparent;
  transition:transform 160ms var(--ease),box-shadow 160ms var(--ease),background 160ms var(--ease),border-color 160ms var(--ease),color 160ms var(--ease),filter 160ms var(--ease);
  white-space:nowrap;
}
.btn-primary{
  background:var(--action);color:#04120C;
  box-shadow:0 0 0 1px rgba(43,232,166,.45),0 10px 30px -10px rgba(43,232,166,.55);
}
.btn-primary:hover{filter:brightness(1.06);transform:translateY(-1px);box-shadow:0 0 0 1px rgba(43,232,166,.6),0 14px 40px -10px rgba(43,232,166,.6);}
.btn-primary:active{transform:translateY(0);}
.btn-ghost{background:var(--glass);border-color:var(--line-strong);color:var(--text-1);backdrop-filter:blur(14px);}
.btn-ghost:hover{border-color:var(--primary);color:#fff;transform:translateY(-1px);}
.btn-ghost:active{transform:translateY(0);}
.btn-sm{height:38px;padding:0 16px;font-size:14px;border-radius:10px;}
.btn-block{width:100%;}
.link-more{display:inline-flex;align-items:center;gap:6px;font-size:15px;color:var(--primary);white-space:nowrap;}
.link-more span{transition:transform 160ms var(--ease);}
.link-more:hover span{transform:translateX(4px);}

/* 徽章 */
.badge{
  display:inline-flex;align-items:center;gap:5px;
  font-size:12px;line-height:1;font-weight:600;
  padding:6px 9px;border-radius:var(--radius-badge);
}
.badge-cat{background:rgba(138,107,255,.14);color:#B9A6FF;border:1px solid rgba(138,107,255,.28);}
.badge-live{background:rgba(43,232,166,.14);color:var(--action);border:1px solid rgba(43,232,166,.3);}
.badge-soon{background:rgba(255,179,71,.14);color:var(--warn);border:1px solid rgba(255,179,71,.3);}
.badge-off{background:rgba(166,182,208,.12);color:var(--text-3);border:1px solid rgba(166,182,208,.24);}
.badge-rec{
  background:var(--primary);color:#04121C;
  border-radius:0 0 0 var(--radius-badge);
  clip-path:polygon(0 0,100% 0,100% 100%,0 100%);
}

/* 头部导航 */
.site-header{
  position:sticky;top:0;z-index:120;
  background:rgba(5,7,15,.66);
  backdrop-filter:blur(14px) saturate(140%);
  border-bottom:1px solid transparent;
  transition:background 240ms var(--ease),border-color 240ms var(--ease);
}
.site-header.scrolled{background:rgba(5,7,15,.92);border-bottom-color:var(--line);}
.nav-wrap{display:flex;align-items:center;gap:26px;height:72px;}
.brand{display:flex;align-items:center;gap:10px;flex:none;}
.brand-mark{
  width:28px;height:28px;flex:none;display:grid;place-items:center;
  border:1px solid rgba(55,194,255,.5);border-radius:9px;
  box-shadow:0 0 12px rgba(55,194,255,.35),inset 0 0 10px rgba(55,194,255,.18);
}
.brand-mark svg{width:15px;height:15px;stroke:var(--primary);fill:none;stroke-width:1.6;}
.brand-text{display:flex;flex-direction:column;line-height:1.15;}
.brand-text strong{font-size:15px;font-weight:800;letter-spacing:0;}
.brand-text span{font-size:11px;color:var(--text-3);letter-spacing:.06em;font-family:var(--font-num);}
.main-nav{display:flex;align-items:center;gap:2px;margin-left:6px;}
.nav-link{
  position:relative;padding:8px 11px;font-size:15px;color:var(--text-2);
  border-radius:8px;transition:color 160ms var(--ease);
}
.nav-link::after{
  content:"";position:absolute;left:11px;right:11px;bottom:2px;height:2px;
  background:var(--primary);border-radius:2px;
  transform:scaleX(0);transform-origin:left;
  transition:transform 160ms var(--ease);
}
.nav-link:hover{color:var(--text-1);}
.nav-link:hover::after{transform:scaleX(1);}
.nav-link.active{color:var(--text-1);}
.nav-link.active::after{transform:scaleX(1);}
.nav-right{display:flex;align-items:center;gap:12px;margin-left:auto;}
.command-search{
  display:flex;align-items:center;gap:8px;height:38px;width:240px;
  padding:0 10px;border-radius:10px;
  background:var(--glass);border:1px solid var(--line);
  transition:border-color 160ms var(--ease),box-shadow 160ms var(--ease);
}
.command-search:focus-within{border-color:var(--primary);box-shadow:0 0 0 8px rgba(55,194,255,.08);}
.command-search svg{width:14px;height:14px;stroke:var(--text-3);fill:none;stroke-width:1.8;flex:none;}
.command-search input{flex:1;min-width:0;border:0;background:transparent;outline:0;font-size:14px;color:var(--text-1);}
.command-search input::placeholder{color:var(--text-3);}
.kbd{
  font-family:var(--font-num);font-size:11px;letter-spacing:.06em;color:var(--text-3);
  border:1px solid var(--line);border-radius:5px;padding:2px 5px;line-height:1.2;flex:none;
}
.nav-login{font-size:15px;color:var(--text-2);padding:6px 4px;}
.nav-login:hover{color:var(--text-1);}
.nav-toggle{
  display:none;width:38px;height:38px;border-radius:10px;
  border:1px solid var(--line-strong);background:var(--glass);
  place-items:center;
}
.nav-toggle span{display:block;width:16px;height:2px;background:var(--text-1);border-radius:2px;position:relative;}
.nav-toggle span::before,.nav-toggle span::after{
  content:"";position:absolute;left:0;width:16px;height:2px;background:var(--text-1);border-radius:2px;
  transition:transform 160ms var(--ease);
}
.nav-toggle span::before{top:-5px;}
.nav-toggle span::after{top:5px;}
.nav-drawer{
  position:fixed;top:72px;right:0;bottom:0;width:min(360px,88vw);
  transform:translateX(104%);transition:transform 240ms var(--ease);
  background:var(--bg-1);border-left:1px solid var(--line);
  padding:24px;overflow-y:auto;z-index:110;
}
.nav-drawer.open{transform:translateX(0);}
.nav-drawer .drawer-search{display:flex;align-items:center;gap:8px;height:44px;padding:0 12px;border-radius:10px;background:var(--glass);border:1px solid var(--line);margin-bottom:20px;}
.nav-drawer .drawer-search svg{width:15px;height:15px;stroke:var(--text-3);fill:none;stroke-width:1.8;}
.nav-drawer .drawer-search input{flex:1;min-width:0;border:0;background:transparent;outline:0;font-size:15px;}
.drawer-group-title{font-family:var(--font-num);font-size:11px;letter-spacing:.06em;color:var(--text-3);margin:6px 0 10px;}
.drawer-link{display:block;padding:13px 12px;border-radius:10px;font-size:16px;color:var(--text-2);border:1px solid transparent;}
.drawer-link:hover,.drawer-link.active{color:var(--text-1);background:var(--glass);border-color:var(--line);}
.drawer-actions{margin-top:24px;display:grid;gap:10px;}

/* Hero */
.hero{position:relative;overflow:hidden;padding:132px 0 92px;border-bottom:1px solid var(--line);}
.hero-bg{position:absolute;inset:0;background-image:url(/assets/images/backpic/back-1.png);background-size:cover;background-position:center;opacity:.38;}
.hero-veil{
  position:absolute;inset:0;
  background:
    radial-gradient(900px 460px at 18% 0%,rgba(55,194,255,.16),transparent 68%),
    linear-gradient(180deg,rgba(5,7,15,.72) 0%,rgba(5,7,15,.88) 52%,var(--bg-0) 100%);
}
.hero-grid{
  position:absolute;inset:0;
  background-image:linear-gradient(rgba(120,180,255,.05) 1px,transparent 1px),linear-gradient(90deg,rgba(120,180,255,.05) 1px,transparent 1px);
  background-size:24px 24px;
  mask-image:linear-gradient(180deg,rgba(0,0,0,.9),transparent 78%);
  -webkit-mask-image:linear-gradient(180deg,rgba(0,0,0,.9),transparent 78%);
}
.hero-inner{position:relative;display:grid;grid-template-columns:1.02fr .98fr;gap:56px;align-items:center;}
.hero-title{
  margin-top:20px;font-size:44px;line-height:1.25;font-weight:800;letter-spacing:0;
  color:#fff;
}
.hero-title em{font-style:normal;color:var(--action);}
.hero-sub{margin-top:18px;font-size:17px;color:var(--text-2);max-width:520px;}
.hero-actions{display:flex;gap:12px;margin-top:30px;flex-wrap:wrap;}
.hero-note{margin-top:12px;font-size:13px;color:var(--text-3);}
.hero-stats{
  display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px;
  margin-top:38px;padding-top:26px;border-top:1px solid var(--line);
}
.stat-label{font-size:13px;color:var(--text-3);}
.stat-value{
  margin-top:4px;font-family:var(--font-num);font-size:18px;font-weight:600;
  color:var(--text-1);letter-spacing:.02em;
}
.stat-value i{font-style:normal;color:var(--action);}
.hero-visual{position:relative;}
.hero-frame{
  position:relative;border-radius:var(--radius);overflow:hidden;
  border:1px solid var(--line-strong);
  box-shadow:0 30px 70px -30px rgba(0,0,0,.9),inset 0 1px 0 rgba(255,255,255,.08);
}
.hero-frame img{width:100%;aspect-ratio:16/10;object-fit:cover;opacity:.92;}
.hero-frame::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(5,7,15,.14),rgba(5,7,15,.66));
}
.hero-chip{
  position:absolute;left:16px;top:16px;z-index:2;
  display:inline-flex;align-items:center;gap:8px;
  font-size:12px;color:var(--text-1);
  padding:7px 12px;border-radius:999px;
  background:rgba(5,7,15,.72);border:1px solid var(--line-strong);
  backdrop-filter:blur(10px);
}
.hero-chip .dot{width:6px;height:6px;border-radius:50%;background:var(--action);box-shadow:0 0 0 4px rgba(43,232,166,.18);}
.hero-mini{
  display:grid;grid-template-columns:1fr 1fr;gap:12px;margin-top:16px;
}
.hero-mini div{
  padding:14px 16px;border-radius:var(--radius-md);
  background:var(--glass);border:1px solid var(--line);backdrop-filter:blur(14px) saturate(140%);
}
.hero-mini span{display:block;font-size:12px;color:var(--text-3);}
.hero-mini strong{display:block;margin-top:4px;font-size:15px;font-weight:600;color:var(--text-1);}

/* 时间线 */
.timeline{position:relative;margin-top:8px;padding-left:34px;}
.timeline::before{
  content:"";position:absolute;left:9px;top:8px;bottom:8px;width:2px;
  background:linear-gradient(180deg,var(--primary) 0%,rgba(55,194,255,.35) 45%,rgba(55,194,255,0) 100%);
  border-radius:2px;
}
.tl-item{position:relative;margin-bottom:20px;}
.tl-item:last-child{margin-bottom:0;}
.tl-dot{
  position:absolute;left:-30px;top:24px;width:10px;height:10px;border-radius:50%;
  background:var(--primary);box-shadow:0 0 0 4px rgba(55,194,255,.18);
}
.tl-item.current .tl-dot{background:var(--action);box-shadow:0 0 0 4px rgba(43,232,166,.22);}
.tl-card{
  display:grid;grid-template-columns:132px 1fr;gap:22px;align-items:start;
  padding:20px 22px;border-radius:var(--radius);
  background:var(--glass);border:1px solid var(--line);
  backdrop-filter:blur(14px) saturate(140%);
  box-shadow:var(--shadow-card);
  transition:border-color 160ms var(--ease),transform 160ms var(--ease);
}
.tl-card:hover{border-color:var(--line-strong);transform:translateY(-2px);}
.tl-step{
  font-family:var(--font-num);font-size:20px;font-weight:600;letter-spacing:.06em;
  color:var(--primary);
}
.tl-step small{display:block;font-size:12px;color:var(--text-3);letter-spacing:.04em;margin-top:2px;font-weight:400;}
.tl-title{font-size:18px;font-weight:700;line-height:1.4;}
.tl-text{margin-top:6px;font-size:15px;color:var(--text-2);}
.tl-link{display:inline-block;margin-top:10px;font-size:14px;color:var(--primary);border-bottom:1px solid transparent;transition:border-color 160ms var(--ease);}
.tl-link:hover{border-bottom-color:var(--primary);}

/* 亮点 */
.hl-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:24px;}
.hl-card{
  position:relative;overflow:hidden;
  padding:26px 22px;border-radius:var(--radius);
  background:var(--glass);border:1px solid var(--line);
  backdrop-filter:blur(14px) saturate(140%);
  box-shadow:var(--shadow-card);
  transition:border-color 160ms var(--ease),transform 160ms var(--ease);
}
.hl-card:hover{border-color:var(--line-strong);transform:translateY(-2px);}
.hl-card::before{
  content:"";position:absolute;top:0;left:0;right:0;height:2px;
  background:linear-gradient(90deg,var(--primary),var(--primary-2));
  opacity:.7;
}
.hl-avatar{
  width:56px;height:56px;border-radius:50%;display:grid;place-items:center;
  font-family:var(--font-num);font-size:19px;font-weight:600;color:var(--primary);
  background:radial-gradient(circle at 30% 25%,rgba(55,194,255,.24),rgba(138,107,255,.14));
  border:1px solid rgba(55,194,255,.32);
}
.hl-name{margin-top:16px;font-size:18px;font-weight:700;}
.hl-role{font-size:13px;color:var(--primary-2);margin-top:2px;}
.hl-desc{margin-top:10px;font-size:14px;color:var(--text-2);line-height:1.75;}
.ribbon{
  position:absolute;top:0;right:0;
  font-size:11px;letter-spacing:.06em;color:#04121C;
  background:rgba(55,194,255,.9);
  padding:4px 12px 4px 14px;
  clip-path:polygon(12px 0,100% 0,100% 100%,0 100%);
}

/* 票种对比 */
.plan-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px;align-items:start;}
.plan-card{
  position:relative;display:flex;flex-direction:column;
  padding:28px 24px;border-radius:var(--radius);
  background:var(--glass);border:1px solid var(--line);
  backdrop-filter:blur(14px) saturate(140%);
  box-shadow:var(--shadow-card);
  transition:border-color 160ms var(--ease),transform 160ms var(--ease);
}
.plan-card:hover{border-color:var(--line-strong);transform:translateY(-2px);}
.plan-card.featured{border-color:rgba(55,194,255,.55);transform:translateY(-8px);}
.plan-card.featured::before{
  content:"";position:absolute;top:0;left:0;right:0;height:2px;border-radius:18px 18px 0 0;
  background:linear-gradient(90deg,var(--action),var(--primary));
  box-shadow:0 0 18px rgba(55,194,255,.6);
}
.plan-name{font-size:15px;color:var(--text-2);font-weight:600;letter-spacing:.02em;}
.plan-price{
  margin-top:10px;font-family:var(--font-num);font-size:32px;font-weight:600;line-height:1.2;
  color:#fff;letter-spacing:.01em;
}
.plan-price small{font-size:13px;font-family:var(--font-cn);color:var(--text-3);font-weight:400;margin-left:6px;}
.plan-note{margin-top:6px;font-size:13px;color:var(--text-3);}
.plan-rows{margin-top:22px;border-top:1px solid var(--line);}
.plan-row{
  display:flex;align-items:center;justify-content:space-between;gap:12px;
  padding:12px 0;border-bottom:1px solid var(--line);font-size:14px;
}
.plan-row .label{color:var(--text-2);}
.plan-row .val{font-family:var(--font-num);color:var(--text-1);font-size:13px;}
.plan-row .val.no{color:var(--text-3);}
.plan-row .val.yes{color:var(--action);}
.plan-cta{margin-top:22px;}

/* 最新信息 */
.post-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px;}
.post-card{
  border-radius:var(--radius);overflow:hidden;
  background:var(--glass);border:1px solid var(--line);
  backdrop-filter:blur(14px) saturate(140%);
  box-shadow:var(--shadow-card);
  transition:border-color 160ms var(--ease),transform 160ms var(--ease);
  height:100%;
}
.post-card:hover{border-color:var(--line-strong);transform:translateY(-2px);}
.post-link{display:flex;flex-direction:column;height:100%;}
.post-media{position:relative;overflow:hidden;aspect-ratio:16/9;background:var(--bg-2);}
.post-media img{width:100%;height:100%;object-fit:cover;transition:transform 240ms var(--ease),opacity 240ms var(--ease);opacity:.9;}
.post-card:hover .post-media img{transform:scale(1.03);opacity:1;}
.post-media .badge{position:absolute;left:12px;top:12px;}
.post-body{padding:18px 20px 20px;display:flex;flex-direction:column;gap:8px;flex:1;}
.post-title{
  font-size:18px;font-weight:700;line-height:1.45;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.post-excerpt{
  font-size:14px;color:var(--text-2);line-height:1.75;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.post-meta{
  margin-top:auto;padding-top:10px;font-family:var(--font-num);font-size:12px;
  color:var(--text-3);letter-spacing:.04em;
  display:flex;align-items:center;gap:8px;
}
.post-meta::before{content:"";width:14px;height:1px;background:var(--line-strong);display:inline-block;}
.empty-state{
  min-height:220px;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:12px;
  border-radius:var(--radius);border:1px dashed var(--line-strong);
  background:rgba(255,255,255,.02);text-align:center;padding:36px 24px;
}
.empty-state svg{width:44px;height:44px;stroke:var(--text-3);fill:none;stroke-width:1.4;}
.empty-state p{color:var(--text-2);font-size:15px;}

/* 报名 */
.signup-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:44px;align-items:start;}
.benefit-list{margin-top:26px;display:grid;gap:14px;}
.benefit-list li{display:flex;gap:12px;font-size:15px;color:var(--text-2);}
.benefit-list li i{
  flex:none;width:22px;height:22px;border-radius:50%;display:grid;place-items:center;
  font-style:normal;font-size:12px;color:#04120C;background:var(--action);margin-top:3px;
}
.form-card{
  position:relative;padding:28px 24px;border-radius:var(--radius);
  background:var(--glass);border:1px solid var(--line-strong);
  backdrop-filter:blur(14px) saturate(140%);
  box-shadow:var(--shadow-card);
}
.form-card::before{
  content:"";position:absolute;top:0;left:24px;right:24px;height:1px;
  background:linear-gradient(90deg,transparent,rgba(255,255,255,.5),transparent);
}
.form-title{font-size:18px;font-weight:700;}
.form-sub{margin-top:4px;font-size:13px;color:var(--text-3);}
.field{margin-top:16px;}
.field label{display:block;font-size:14px;color:var(--text-2);margin-bottom:6px;}
.field .input,.field select{
  width:100%;height:46px;padding:0 14px;border-radius:var(--radius-sm);
  background:rgba(5,7,15,.6);border:1px solid var(--line);color:var(--text-1);
  font-size:15px;outline:0;
  transition:border-color 160ms var(--ease),box-shadow 160ms var(--ease);
}
.field .input::placeholder{color:var(--text-3);}
.field .input:focus,.field select:focus{border-color:var(--primary);box-shadow:0 0 0 6px rgba(55,194,255,.1);}
.checkbox{display:flex;align-items:flex-start;gap:10px;margin-top:18px;font-size:13px;color:var(--text-2);line-height:1.6;}
.checkbox input{position:absolute;opacity:0;width:0;height:0;}
.checkbox .box{
  flex:none;width:18px;height:18px;border-radius:5px;margin-top:2px;
  border:1px solid var(--line-strong);background:rgba(5,7,15,.6);
  display:grid;place-items:center;transition:all 160ms var(--ease);
}
.checkbox .box::after{content:"";width:9px;height:5px;border-left:2px solid #04120C;border-bottom:2px solid #04120C;transform:rotate(-45deg) scale(0);transition:transform 160ms var(--ease);}
.checkbox input:checked + .box{background:var(--action);border-color:var(--action);}
.checkbox input:checked + .box::after{transform:rotate(-45deg) scale(1);}
.checkbox input:focus-visible + .box{outline:2px solid rgba(43,232,166,.55);outline-offset:2px;}
.form-msg{margin-top:18px;font-size:14px;color:var(--action);display:none;}
.form-msg.show{display:block;}

/* FAQ */
.faq-grid{display:grid;grid-template-columns:1fr 1fr;gap:16px;}
.faq-item{
  border-radius:var(--radius-md);border:1px solid var(--line);
  background:var(--glass);backdrop-filter:blur(14px) saturate(140%);
  transition:border-color 160ms var(--ease);
}
.faq-item[open]{border-color:var(--line-strong);}
.faq-q{
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:18px 20px;font-size:17px;font-weight:600;cursor:pointer;list-style:none;
}
.faq-q::-webkit-details-marker{display:none;}
.faq-icon{
  flex:none;width:22px;height:22px;position:relative;
  transition:transform 160ms var(--ease);
}
.faq-icon::before,.faq-icon::after{
  content:"";position:absolute;left:50%;top:50%;background:var(--primary);border-radius:2px;
  transform:translate(-50%,-50%);
}
.faq-icon::before{width:12px;height:2px;}
.faq-icon::after{width:2px;height:12px;}
.faq-item[open] .faq-icon{transform:rotate(45deg);}
.faq-a{padding:0 20px 20px;font-size:15px;color:var(--text-2);padding-top:12px;}

/* CTA 横幅 */
.cta-band{padding:0 0 96px;}
.cta-band-inner{
  display:flex;align-items:center;justify-content:space-between;gap:24px;flex-wrap:wrap;
  padding:28px 30px;border-radius:var(--radius);
  border:1px solid var(--line-strong);
  background:
    radial-gradient(500px 200px at 10% 0%,rgba(55,194,255,.16),transparent 70%),
    rgba(255,255,255,.04);
  backdrop-filter:blur(14px);
}
.cta-band-inner h2{font-size:22px;line-height:1.35;font-weight:800;}
.cta-band-inner p{margin-top:6px;font-size:14px;color:var(--text-2);}

/* 页脚 */
.site-footer{border-top:1px solid var(--line);background:linear-gradient(180deg,rgba(10,16,32,.4),rgba(5,7,15,1));padding-top:64px;}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:36px;padding-bottom:44px;}
.footer-brand .brand{margin-bottom:16px;}
.footer-desc{font-size:14px;color:var(--text-2);max-width:320px;line-height:1.8;}
.footer-col h3{font-size:14px;font-weight:700;color:var(--text-1);margin-bottom:14px;letter-spacing:.02em;}
.footer-links{display:grid;gap:10px;}
.footer-links a{font-size:14px;color:var(--text-2);transition:color 160ms var(--ease),transform 160ms var(--ease);display:inline-block;}
.footer-links a:hover{color:var(--text-1);transform:translateX(2px);}
.footer-compliance{font-size:13px;color:var(--text-3);line-height:1.9;}
.footer-compliance strong{display:block;color:var(--text-2);font-size:13px;margin-bottom:6px;font-weight:600;}
.footer-bottom{
  border-top:1px solid var(--line);padding:20px 0 28px;
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13px;color:var(--text-3);
}
.footer-bottom .domain{font-family:var(--font-num);letter-spacing:.06em;}

/* 断点 */
@media (max-width:1279px){
  .hero-title{font-size:38px;}
  .hl-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .command-search{width:200px;}
}
@media (max-width:1023px){
  .main-nav{display:none;}
  .command-search{display:none;}
  .nav-toggle{display:grid;}
  .section{padding:72px 0;}
  .hero{padding:104px 0 72px;}
  .hero-inner{grid-template-columns:1fr;gap:40px;}
  .hero-title{font-size:34px;}
  .post-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .plan-grid{grid-template-columns:1fr;gap:18px;}
  .plan-card.featured{transform:none;order:-1;}
  .signup-grid{grid-template-columns:1fr;gap:32px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px;}
}
@media (max-width:767px){
  .container{padding:0 18px;}
  .section{padding:48px 0;}
  .section-head{flex-direction:column;align-items:flex-start;gap:14px;margin-bottom:26px;}
  .section-title{font-size:24px;}
  .hero{padding:88px 0 56px;}
  .hero-title{font-size:28px;}
  .hero-sub{font-size:16px;}
  .hero-actions{width:100%;}
  .hero-actions .btn{flex:1;}
  .hero-stats{grid-template-columns:1fr;gap:14px;}
  .timeline{padding-left:22px;}
  .timeline::before{left:5px;}
  .tl-dot{left:-21px;top:18px;}
  .tl-card{grid-template-columns:1fr;gap:8px;padding:18px;}
  .tl-step{font-size:16px;}
  .hl-grid{grid-template-columns:1fr;}
  .post-grid{grid-template-columns:1fr;}
  .faq-grid{grid-template-columns:1fr;}
  .cta-band{padding-bottom:56px;}
  .cta-band-inner{flex-direction:column;align-items:flex-start;padding:22px;}
  .footer-grid{grid-template-columns:1fr;}
  .nav-login{display:none;}
  .hero-mini{grid-template-columns:1fr;}
}
@media (max-width:480px){
  .btn{width:100%;}
  .hero-actions{flex-direction:column;}
  .nav-right .btn-sm{display:none;}
  .cta-band-inner .btn{width:100%;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
}

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

/* roulang page: article */
:root{
  --bg-0:#05070F;
  --bg-1:#0A1020;
  --bg-2:#111A2E;
  --line:rgba(120,180,255,0.16);
  --line-strong:rgba(120,180,255,0.32);
  --text-1:#E9F1FF;
  --text-2:#A6B6D0;
  --text-3:#6F7F9B;
  --primary:#37C2FF;
  --primary-2:#8A6BFF;
  --action:#2BE8A6;
  --warn:#FFB347;
  --danger:#FF6B6B;
  --glass:rgba(255,255,255,0.045);
  --radius-card:18px;
  --radius-btn:12px;
  --radius-img:14px;
  --radius-badge:6px;
  --shadow-card:0 24px 60px -28px rgba(0,0,0,0.85), inset 0 1px 0 rgba(255,255,255,0.07);
  --ease:cubic-bezier(.22,.61,.36,1);
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  background:var(--bg-0);
  color:var(--text-1);
  font-family:"PingFang SC","HarmonyOS Sans SC","Source Han Sans SC","Microsoft YaHei",sans-serif;
  font-size:17px;
  line-height:1.8;
  -webkit-font-smoothing:antialiased;
}
body::before{
  content:"";
  position:fixed;
  inset:0;
  pointer-events:none;
  z-index:0;
  background-image:radial-gradient(900px 480px at 50% -12%, rgba(55,194,255,0.10), transparent 70%);
}
img{max-width:100%;display:block}
a{color:var(--primary);text-decoration:none;transition:color .16s var(--ease),border-color .16s var(--ease)}
button{font-family:inherit}
h1,h2,h3,h4,p,ul,ol,figure,blockquote{margin:0}
h1,h2,h3,h4{line-height:1.25;font-weight:700;letter-spacing:0}
ul,ol{list-style:none;padding:0}
[hidden]{display:none !important}
::selection{background:rgba(43,232,166,.28);color:#fff}
::-webkit-scrollbar{width:10px;height:10px}
::-webkit-scrollbar-track{background:var(--bg-1)}
::-webkit-scrollbar-thumb{background:rgba(120,180,255,0.22);border-radius:10px}
::-webkit-scrollbar-thumb:hover{background:rgba(120,180,255,0.34)}

.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px}

/* ---------- Header ---------- */
.site-header{
  position:sticky;
  top:0;
  z-index:60;
  background:rgba(5,7,15,0.72);
  backdrop-filter:blur(14px) saturate(140%);
  -webkit-backdrop-filter:blur(14px) saturate(140%);
  border-bottom:1px solid transparent;
  transition:background .24s var(--ease),border-color .24s var(--ease);
}
.site-header.is-scrolled{background:rgba(5,7,15,0.92);border-bottom-color:var(--line)}
.header-inner{display:flex;align-items:center;gap:28px;height:72px}
.brand{display:inline-flex;align-items:center;gap:10px;color:var(--text-1);flex-shrink:0}
.brand-mark{
  width:30px;height:30px;border-radius:9px;
  display:grid;place-items:center;
  border:1px solid var(--line-strong);
  background:rgba(55,194,255,0.10);
  box-shadow:0 0 18px -6px rgba(55,194,255,.85);
}
.brand-mark svg{width:17px;height:17px;fill:none;stroke:var(--primary);stroke-width:1.6;stroke-linecap:round;stroke-linejoin:round}
.brand-text{display:flex;flex-direction:column;line-height:1.15}
.brand-text strong{font-size:16px;font-weight:700;color:var(--text-1)}
.brand-text span{font-size:11px;color:var(--text-3);letter-spacing:.06em}
.main-nav{display:flex;align-items:center;gap:2px;margin-right:auto}
.nav-link{
  position:relative;
  display:inline-block;
  padding:9px 11px;
  font-size:15px;
  color:var(--text-2);
  border-radius:8px;
  transition:color .16s var(--ease);
}
.nav-link::after{
  content:"";
  position:absolute;
  left:11px;right:11px;bottom:3px;
  height:2px;border-radius:2px;
  background:linear-gradient(90deg,var(--primary),var(--primary-2));
  transform:scaleX(0);
  transform-origin:left;
  transition:transform .24s var(--ease);
}
.nav-link:hover{color:var(--text-1)}
.nav-link:hover::after,.nav-link.active::after{transform:scaleX(1)}
.nav-link.active{color:var(--text-1)}
.nav-actions{display:flex;align-items:center;gap:12px;flex-shrink:0}
.command-search{
  display:flex;align-items:center;gap:8px;
  width:240px;height:38px;padding:0 10px 0 12px;
  border-radius:10px;
  border:1px solid var(--line);
  background:rgba(255,255,255,0.04);
  transition:border-color .16s var(--ease),box-shadow .16s var(--ease),background .16s var(--ease);
}
.command-search:focus-within{border-color:var(--primary);box-shadow:0 0 0 8px rgba(55,194,255,.08);background:rgba(55,194,255,.06)}
.command-search svg{width:15px;height:15px;fill:none;stroke:var(--text-3);stroke-width:1.8;stroke-linecap:round;flex-shrink:0}
.command-search input{
  flex:1;min-width:0;border:none;background:transparent;outline:none;
  color:var(--text-1);font-size:13px;font-family:inherit;padding:0;
}
.command-search input::placeholder{color:var(--text-3)}
.command-search kbd{
  font-family:"Space Grotesk",monospace;font-size:11px;letter-spacing:.06em;
  color:var(--text-3);border:1px solid var(--line);border-radius:5px;
  padding:1px 5px;flex-shrink:0;
}
.ghost-link{font-size:15px;color:var(--text-2);padding:6px 4px}
.ghost-link:hover{color:var(--text-1)}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:46px;padding:0 22px;
  border-radius:var(--radius-btn);
  font-size:15px;font-weight:600;letter-spacing:0;
  border:1px solid transparent;
  cursor:pointer;
  white-space:nowrap;
  transition:transform .16s var(--ease),background .16s var(--ease),border-color .16s var(--ease),box-shadow .16s var(--ease),color .16s var(--ease);
}
.btn-sm{height:38px;padding:0 16px;font-size:14px}
.btn-primary{
  background:var(--action);
  color:#04120C;
  box-shadow:0 0 0 1px rgba(43,232,166,.45),0 10px 30px -10px rgba(43,232,166,.55);
}
.btn-primary:hover{background:#3CF0B4;transform:translateY(-1px);box-shadow:0 0 0 1px rgba(43,232,166,.55),0 16px 40px -12px rgba(43,232,166,.62);color:#04120C}
.btn-primary:active{transform:translateY(0)}
.btn-ghost{
  background:var(--glass);
  border-color:var(--line-strong);
  color:var(--text-1);
  backdrop-filter:blur(14px) saturate(140%);
}
.btn-ghost:hover{border-color:var(--primary);color:#fff;transform:translateY(-1px)}
a:focus-visible,button:focus-visible,input:focus-visible,summary:focus-visible{
  outline:2px solid rgba(43,232,166,.5);
  outline-offset:2px;
  border-radius:8px;
}
.menu-btn{
  display:none;
  width:40px;height:40px;
  border-radius:10px;
  border:1px solid var(--line);
  background:rgba(255,255,255,.04);
  cursor:pointer;
  padding:0;
  align-items:center;justify-content:center;
  flex-direction:column;gap:4px;
}
.menu-btn span{display:block;width:16px;height:1.6px;background:var(--text-2);border-radius:2px;transition:background .16s var(--ease)}
.menu-btn:hover span{background:var(--text-1)}
.drawer-backdrop{
  position:fixed;inset:0;z-index:65;
  background:rgba(3,6,14,.66);
  opacity:0;pointer-events:none;
  transition:opacity .24s var(--ease);
}
.drawer-backdrop.is-open{opacity:1;pointer-events:auto}
.drawer-search{display:none}

/* ---------- Article hero ---------- */
.article-hero{
  position:relative;
  overflow:hidden;
  padding:28px 0 52px;
  border-bottom:1px solid var(--line);
}
.article-hero::before{
  content:"";
  position:absolute;inset:0;z-index:0;
  background-image:url('/assets/images/backpic/back-1.png');
  background-size:cover;
  background-position:center;
  opacity:.34;
}
.article-hero::after{
  content:"";
  position:absolute;inset:0;z-index:0;
  background-image:
    linear-gradient(180deg,rgba(5,7,15,.60),rgba(5,7,15,.96)),
    linear-gradient(rgba(120,180,255,.05) 1px,transparent 1px),
    linear-gradient(90deg,rgba(120,180,255,.05) 1px,transparent 1px),
    radial-gradient(720px 320px at 18% 0%,rgba(55,194,255,.16),transparent 70%);
  background-size:auto,24px 24px,24px 24px,auto;
}
.article-hero .container{position:relative;z-index:1}
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--text-3)}
.breadcrumb li{display:inline-flex;align-items:center;gap:8px}
.breadcrumb li+li::before{content:"/";color:rgba(120,180,255,.35)}
.breadcrumb a{color:var(--text-2);border-bottom:1px solid transparent}
.breadcrumb a:hover{color:var(--text-1);border-bottom-color:var(--line-strong)}
.breadcrumb li[aria-current="page"]{color:var(--text-3);max-width:100%;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.article-hero-inner{max-width:820px;margin-top:24px}
.badge{
  display:inline-flex;align-items:center;
  height:24px;padding:0 10px;
  border-radius:var(--radius-badge);
  font-size:12px;font-weight:600;letter-spacing:.06em;
}
.badge-cat{background:rgba(138,107,255,.14);color:#BEB0FF;border:1px solid rgba(138,107,255,.32)}
.article-title{
  font-size:44px;
  font-weight:800;
  color:var(--text-1);
  margin:16px 0 0;
  line-height:1.25;
}
.article-sub{
  margin-top:14px;
  font-size:15px;
  color:var(--text-2);
  max-width:60ch;
}
.article-meta{
  display:flex;flex-wrap:wrap;gap:10px 22px;
  margin-top:22px;
  font-size:14px;
  color:var(--text-3);
}
.article-meta span{display:inline-flex;align-items:center;gap:6px}
.article-meta .dot{width:5px;height:5px;border-radius:50%;background:var(--text-3);opacity:.6}
.article-meta strong{color:var(--text-2);font-weight:500}

/* ---------- Article layout ---------- */
.article-layout{
  display:grid;
  grid-template-columns:minmax(0,760px) 280px;
  gap:56px;
  justify-content:center;
  align-items:start;
  padding-top:56px;
  padding-bottom:24px;
  position:relative;
  z-index:1;
}
.article-main{min-width:0}
.article-body{
  font-size:17px;
  line-height:1.9;
  color:var(--text-2);
  overflow-wrap:break-word;
}
.article-body > *:first-child{margin-top:0}
.article-body h2{
  position:relative;
  font-size:26px;
  font-weight:700;
  color:var(--text-1);
  margin:2.1em 0 .8em;
  padding-left:16px;
  scroll-margin-top:96px;
}
.article-body h2::before{
  content:"";
  position:absolute;left:0;top:.24em;bottom:.24em;width:3px;border-radius:3px;
  background:linear-gradient(180deg,var(--action),var(--primary));
}
.article-body h3{
  font-size:20px;
  font-weight:700;
  color:var(--text-1);
  margin:1.8em 0 .6em;
  scroll-margin-top:96px;
}
.article-body h4{font-size:17px;color:var(--text-1);margin:1.4em 0 .5em}
.article-body p{margin:0 0 1.4em}
.article-body a{color:var(--primary);border-bottom:1px solid rgba(55,194,255,.35);transition:border-color .16s var(--ease),color .16s var(--ease)}
.article-body a:hover{color:#7FDBFF;border-bottom-color:var(--primary)}
.article-body ul,.article-body ol{margin:0 0 1.4em;padding-left:1.5em}
.article-body ul li{list-style:disc;margin:.45em 0}
.article-body ol li{list-style:decimal;margin:.45em 0}
.article-body li::marker{color:var(--primary)}
.article-body strong{color:var(--text-1);font-weight:600}
.article-body blockquote{
  margin:1.7em 0;
  padding:16px 20px;
  border-left:3px solid var(--primary-2);
  background:rgba(138,107,255,.09);
  border-radius:0 var(--radius-img) var(--radius-img) 0;
  color:var(--text-1);
}
.article-body blockquote p:last-child{margin-bottom:0}
.article-body img{
  border-radius:var(--radius-img);
  border:1px solid var(--line);
  margin:1.6em 0 .8em;
  width:100%;
}
.article-body figure{margin:1.7em 0}
.article-body figure img{margin:0 0 .8em}
.article-body figcaption{
  font-size:13px;
  color:var(--text-3);
  text-align:center;
  line-height:1.7;
}
.article-body table{
  display:block;
  width:100%;
  overflow-x:auto;
  border-collapse:collapse;
  margin:1.7em 0;
  font-size:15px;
  border:1px solid var(--line);
  border-radius:var(--radius-img);
}
.article-body th,.article-body td{
  border:1px solid var(--line);
  padding:10px 14px;
  text-align:left;
  white-space:nowrap;
}
.article-body th{background:rgba(120,180,255,.08);color:var(--text-1);font-weight:600}
.article-body pre{
  background:#070C18;
  border:1px solid var(--line);
  border-radius:var(--radius-img);
  padding:18px 20px;
  overflow-x:auto;
  margin:1.7em 0;
  font-size:14px;
  line-height:1.75;
}
.article-body code{font-family:"Space Grotesk",Consolas,Monaco,monospace;font-size:.92em}
.article-body pre code{color:#C6D6F0}
.article-body :not(pre) > code{
  background:rgba(55,194,255,.12);
  color:#8FDCFF;
  padding:2px 6px;
  border-radius:6px;
}
.article-body hr{
  border:none;height:1px;
  background:linear-gradient(90deg,var(--line-strong),transparent);
  margin:2.6em 0;
}
.article-body h2 code,.article-body h3 code{background:transparent;padding:0;color:inherit}

/* ---------- Empty state ---------- */
.empty-state{
  display:flex;flex-direction:column;align-items:center;justify-content:center;
  gap:14px;
  min-height:220px;
  padding:40px 24px;
  text-align:center;
  border:1px dashed var(--line-strong);
  border-radius:var(--radius-card);
  background:rgba(255,255,255,.03);
}
.empty-state svg{width:44px;height:44px;fill:none;stroke:var(--text-3);stroke-width:1.4;stroke-linecap:round;stroke-linejoin:round}
.empty-state p{font-size:15px;color:var(--text-2);margin:0}

/* ---------- Post nav ---------- */
.post-nav{
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:16px;
  margin-top:52px;
  padding-top:32px;
  border-top:1px solid var(--line);
}
.post-nav a{
  display:flex;flex-direction:column;gap:6px;
  padding:16px 18px;
  border:1px solid var(--line);
  border-radius:var(--radius-img);
  background:rgba(255,255,255,.03);
  transition:transform .16s var(--ease),border-color .16s var(--ease),background .16s var(--ease);
}
.post-nav a:hover{transform:translateY(-2px);border-color:var(--line-strong);background:rgba(255,255,255,.05)}
.post-nav span{font-size:12px;letter-spacing:.06em;color:var(--text-3)}
.post-nav strong{font-size:15px;font-weight:600;color:var(--text-1);line-height:1.5}
.post-nav .next{text-align:right}
.back-row{margin-top:28px}

/* ---------- TOC ---------- */
.article-side{position:relative}
.toc-card{
  position:sticky;
  top:96px;
  padding:18px 18px 20px;
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  background:var(--glass);
  backdrop-filter:blur(14px) saturate(140%);
  -webkit-backdrop-filter:blur(14px) saturate(140%);
  box-shadow:var(--shadow-card);
}
.toc-title{
  font-size:12px;
  letter-spacing:.06em;
  color:var(--text-3);
  margin-bottom:12px;
  font-weight:600;
}
.toc-list{display:flex;flex-direction:column;gap:2px;max-height:56vh;overflow-y:auto}
.toc-list a{
  display:block;
  padding:7px 10px;
  border-radius:8px;
  border-left:2px solid transparent;
  font-size:14px;
  color:var(--text-2);
  line-height:1.6;
  transition:color .16s var(--ease),background .16s var(--ease),border-color .16s var(--ease);
}
.toc-list a:hover{color:var(--text-1);background:rgba(120,180,255,.07)}
.toc-list a.is-active{
  color:var(--primary);
  border-left-color:var(--primary);
  background:rgba(55,194,255,.09);
}
.toc-list a.depth-3{padding-left:22px;font-size:13px;color:var(--text-3)}
.toc-list a.depth-3.is-active{color:var(--primary)}
.toc-mobile{
  display:none;
  margin-bottom:28px;
  padding:0 16px;
  border:1px solid var(--line);
  border-radius:var(--radius-img);
  background:var(--glass);
}
.toc-mobile summary{
  display:flex;align-items:center;justify-content:space-between;gap:10px;
  padding:14px 0;
  cursor:pointer;
  list-style:none;
  font-size:15px;
  font-weight:600;
  color:var(--text-1);
}
.toc-mobile summary::-webkit-details-marker{display:none}
.toc-mobile summary::after{
  content:"+";
  font-family:"Space Grotesk",monospace;
  font-size:18px;
  color:var(--primary);
  transition:transform .24s var(--ease);
}
.toc-mobile[open] summary::after{transform:rotate(45deg)}
.toc-mobile[open]{padding-bottom:14px}

/* ---------- Related ---------- */
.section{padding:72px 0}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;margin-bottom:32px;flex-wrap:wrap}
.section-head h2{font-size:30px;font-weight:700;color:var(--text-1)}
.section-head p{font-size:15px;color:var(--text-3);margin-top:10px}
.link-more{
  font-size:14px;color:var(--text-2);
  border-bottom:1px solid transparent;
  transition:color .16s var(--ease),border-color .16s var(--ease);
}
.link-more:hover{color:var(--text-1);border-bottom-color:var(--line-strong)}
.news-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px}
.news-card{
  display:flex;flex-direction:column;
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  overflow:hidden;
  background:var(--glass);
  backdrop-filter:blur(14px) saturate(140%);
  -webkit-backdrop-filter:blur(14px) saturate(140%);
  box-shadow:var(--shadow-card);
  transition:transform .16s var(--ease),border-color .16s var(--ease);
}
.news-card:hover{transform:translateY(-2px);border-color:var(--line-strong)}
.news-thumb{position:relative;aspect-ratio:16/9;overflow:hidden;background:linear-gradient(135deg,#0B1424,#111A2E)}
.news-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .36s var(--ease),filter .36s var(--ease)}
.news-card:hover .news-thumb img{transform:scale(1.03);filter:brightness(1.08)}
.news-body{display:flex;flex-direction:column;gap:10px;padding:18px 20px 22px;flex:1}
.news-card h3{
  font-size:18px;
  font-weight:600;
  color:var(--text-1);
  line-height:1.5;
  display:-webkit-box;
  -webkit-line-clamp:2;
  -webkit-box-orient:vertical;
  overflow:hidden;
}
.news-desc{
  font-size:14px;
  color:var(--text-3);
  line-height:1.75;
  display:-webkit-box;
  -webkit-line-clamp:2;
  -webkit-box-orient:vertical;
  overflow:hidden;
}
.news-foot{display:flex;align-items:center;gap:10px;margin-top:auto;padding-top:6px;font-size:13px;color:var(--text-3)}

/* ---------- CTA banner ---------- */
.cta-banner{
  position:relative;
  overflow:hidden;
  border-top:1px solid var(--line);
  border-bottom:1px solid var(--line);
  background:linear-gradient(180deg,rgba(10,16,32,.72),rgba(5,7,15,.94));
  padding:48px 0;
  margin-top:24px;
}
.cta-banner::after{
  content:"";
  position:absolute;inset:0;
  background-image:radial-gradient(600px 220px at 82% 0%,rgba(43,232,166,.14),transparent 70%);
  pointer-events:none;
}
.cta-inner{position:relative;z-index:1;display:flex;align-items:center;justify-content:space-between;gap:28px;flex-wrap:wrap}
.cta-inner h2{font-size:24px;font-weight:700;color:var(--text-1)}
.cta-inner p{font-size:14px;color:var(--text-3);margin-top:8px;max-width:56ch}

/* ---------- Footer ---------- */
.site-footer{
  position:relative;
  margin-top:0;
  padding:64px 0 28px;
  border-top:1px solid var(--line);
  background:linear-gradient(180deg,rgba(10,16,32,.45),rgba(5,7,15,1));
}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:40px}
.footer-brand .brand{margin-bottom:0}
.footer-desc{font-size:14px;color:var(--text-3);line-height:1.85;margin-top:16px;max-width:34ch}
.footer-col h3{font-size:14px;font-weight:600;color:var(--text-1);margin-bottom:16px;letter-spacing:.06em}
.footer-links{display:flex;flex-direction:column;gap:10px}
.footer-links a{font-size:14px;color:var(--text-2);transition:color .16s var(--ease),transform .16s var(--ease)}
.footer-links a:hover{color:var(--text-1);transform:translateX(2px)}
.footer-compliance{font-size:13px;color:var(--text-3);line-height:1.9}
.footer-compliance strong{display:block;color:var(--text-2);font-weight:600;margin-bottom:4px}
.footer-bottom{
  display:flex;align-items:center;justify-content:space-between;gap:12px;flex-wrap:wrap;
  margin-top:48px;padding-top:20px;
  border-top:1px solid var(--line);
  font-size:13px;color:var(--text-3);
}
.footer-bottom .domain{font-family:"Space Grotesk",monospace;letter-spacing:.06em;color:var(--text-3)}

/* ---------- Responsive ---------- */
@media (max-width:1279px){
  .article-layout{grid-template-columns:minmax(0,1fr) 260px;gap:40px}
}
@media (max-width:1023px){
  .header-inner{height:64px;gap:16px}
  .main-nav{
    position:fixed;
    top:0;right:0;
    z-index:70;
    width:min(340px,86vw);
    height:100vh;
    margin:0;
    padding:88px 24px 32px;
    flex-direction:column;
    align-items:stretch;
    gap:4px;
    background:rgba(10,16,32,.98);
    border-left:1px solid var(--line);
    overflow-y:auto;
    transform:translateX(100%);
    transition:transform .24s var(--ease);
  }
  .main-nav.is-open{transform:translateX(0)}
  .nav-link{padding:12px 10px;font-size:16px;border-bottom:1px solid rgba(120,180,255,.08)}
  .nav-link::after{display:none}
  .nav-link.active{color:var(--primary)}
  .nav-actions .command-search,.nav-actions .ghost-link{display:none}
  .menu-btn{display:flex}
  .drawer-search{display:block;margin-bottom:12px}
  .drawer-search form{
    display:flex;align-items:center;gap:8px;
    height:42px;padding:0 12px;
    border-radius:10px;border:1px solid var(--line);
    background:rgba(255,255,255,.05);
  }
  .drawer-search svg{width:15px;height:15px;fill:none;stroke:var(--text-3);stroke-width:1.8;stroke-linecap:round}
  .drawer-search input{
    flex:1;min-width:0;border:none;background:transparent;outline:none;
    color:var(--text-1);font-size:14px;font-family:inherit;
  }
  .article-layout{grid-template-columns:minmax(0,1fr);padding-top:36px;gap:0}
  .article-side{display:none}
  .toc-mobile{display:block}
  .article-title{font-size:34px}
  .section{padding:56px 0}
  .news-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
}
@media (max-width:767px){
  body{font-size:16px}
  .container{padding:0 18px}
  .article-hero{padding:20px 0 40px}
  .article-title{font-size:32px}
  .article-body{font-size:16px;line-height:1.85}
  .article-body h2{font-size:22px}
  .article-body h3{font-size:18px}
  .section{padding:48px 0}
  .section-head h2{font-size:24px}
  .news-grid{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .cta-inner{flex-direction:column;align-items:flex-start}
}
@media (max-width:520px){
  .article-title{font-size:28px}
  .post-nav{grid-template-columns:1fr}
  .post-nav .next{text-align:left}
  .btn{width:100%}
  .nav-actions .btn-primary{width:auto}
  .footer-bottom{flex-direction:column;align-items:flex-start}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{
    animation-duration:.001ms !important;
    transition-duration:.001ms !important;
    scroll-behavior:auto !important;
  }
}

/* roulang page: category1 */
:root{
  --bg-0:#05070F;
  --bg-1:#0A1020;
  --bg-2:#111A2E;
  --line:rgba(120,180,255,0.16);
  --line-strong:rgba(120,180,255,0.32);
  --text-1:#E9F1FF;
  --text-2:#A6B6D0;
  --text-3:#6F7F9B;
  --primary:#37C2FF;
  --primary-2:#8A6BFF;
  --action:#2BE8A6;
  --warn:#FFB347;
  --danger:#FF6B6B;
  --glass:rgba(255,255,255,0.045);
  --glass-fallback:rgba(17,26,46,0.85);
  --r-card:18px;
  --r-btn:12px;
  --r-img:14px;
  --r-badge:6px;
  --shadow-card:0 24px 60px -28px rgba(0,0,0,0.85), inset 0 1px 0 rgba(255,255,255,0.07);
  --font:"PingFang SC","HarmonyOS Sans SC","Source Han Sans SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  --mono:"SFMono-Regular",ui-monospace,Menlo,Consolas,"Liberation Mono",monospace;
  --ease:cubic-bezier(.22,.61,.36,1);
  --container:1200px;
  --section-py:96px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  background:var(--bg-0);
  color:var(--text-1);
  font-family:var(--font);
  font-size:17px;
  line-height:1.8;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img,svg{display:block;max-width:100%}
a{color:inherit;text-decoration:none}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer}
input,select,textarea{font:inherit;color:inherit}
h1,h2,h3,h4,p,ul,ol,figure{margin:0}
ul,ol{padding:0;list-style:none}
::selection{background:rgba(55,194,255,.3);color:#fff}
:focus-visible{outline:2px solid var(--primary);outline-offset:2px;border-radius:4px}
::-webkit-scrollbar{width:10px;height:10px}
::-webkit-scrollbar-track{background:var(--bg-1)}
::-webkit-scrollbar-thumb{background:rgba(120,180,255,0.22);border-radius:8px}
::-webkit-scrollbar-thumb:hover{background:rgba(120,180,255,0.34)}

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

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 22px;border-radius:var(--r-btn);
  font-weight:600;font-size:15px;line-height:1;white-space:nowrap;
  transition:transform .16s var(--ease),box-shadow .16s var(--ease),background .16s var(--ease),border-color .16s var(--ease),color .16s var(--ease);
}
.btn-primary{
  background:var(--action);color:#04120C;
  box-shadow:0 0 0 1px rgba(43,232,166,.45),0 10px 30px -10px rgba(43,232,166,.55);
}
.btn-primary:hover{background:#3DF0B1;transform:translateY(-1px);box-shadow:0 0 0 1px rgba(43,232,166,.5),0 14px 40px -12px rgba(43,232,166,.6)}
.btn-primary:active{transform:translateY(0);box-shadow:0 0 0 1px rgba(43,232,166,.45),0 6px 18px -10px rgba(43,232,166,.5)}
.btn-ghost{
  background:var(--glass);border:1px solid var(--line-strong);color:var(--text-1);
  -webkit-backdrop-filter:blur(14px) saturate(140%);backdrop-filter:blur(14px) saturate(140%);
}
.btn-ghost:hover{border-color:var(--primary);color:#fff;transform:translateY(-1px)}
.btn-sm{height:40px;padding:0 16px;font-size:14px;border-radius:10px}
.btn-block{width:100%}
.btn[disabled]{opacity:.55;cursor:not-allowed;transform:none}

/* ---------- 导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(5,7,15,0.55);
  -webkit-backdrop-filter:blur(14px) saturate(140%);backdrop-filter:blur(14px) saturate(140%);
  border-bottom:1px solid transparent;
  transition:background .24s var(--ease),border-color .24s var(--ease);
}
.site-header.is-scrolled{background:rgba(5,7,15,0.9);border-bottom-color:var(--line)}
.header-inner{display:flex;align-items:center;gap:24px;height:76px}
.brand{display:flex;align-items:center;gap:10px;flex-shrink:0}
.brand-mark{
  width:30px;height:30px;border-radius:9px;display:grid;place-items:center;
  border:1px solid var(--line-strong);
  background:linear-gradient(160deg,rgba(55,194,255,0.18),rgba(138,107,255,0.12));
  box-shadow:0 0 18px -6px rgba(55,194,255,0.7);
}
.brand-mark svg{width:18px;height:18px;fill:none;stroke:var(--primary);stroke-width:1.6;stroke-linecap:round;stroke-linejoin:round}
.brand-text{display:flex;flex-direction:column;line-height:1.15}
.brand-text strong{font-size:15px;font-weight:700;letter-spacing:0}
.brand-text span{font-size:11px;color:var(--text-3);letter-spacing:.06em}
.main-nav{display:flex;align-items:center;gap:22px;margin:0 auto}
.nav-link{
  position:relative;padding:8px 0;font-size:15px;color:var(--text-2);
  transition:color .16s var(--ease);
}
.nav-link::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:2px;border-radius:2px;
  background:var(--primary);transform:scaleX(0);transform-origin:left;
  transition:transform .24s var(--ease);
}
.nav-link:hover{color:var(--text-1)}
.nav-link:hover::after{transform:scaleX(1)}
.nav-link.active{color:var(--text-1);font-weight:600}
.nav-link.active::after{transform:scaleX(1)}
.header-actions{display:flex;align-items:center;gap:14px;flex-shrink:0}
.command-search{
  display:flex;align-items:center;gap:8px;width:240px;height:40px;padding:0 10px 0 12px;
  border-radius:10px;background:var(--glass);border:1px solid var(--line);
  transition:border-color .16s var(--ease),box-shadow .16s var(--ease);
}
.command-search:focus-within{border-color:var(--primary);box-shadow:0 0 0 8px rgba(55,194,255,0.10)}
.command-search svg{width:16px;height:16px;flex-shrink:0;fill:none;stroke:var(--text-3);stroke-width:1.8;stroke-linecap:round}
.command-search input{
  flex:1;min-width:0;border:0;background:none;outline:none;font-size:14px;color:var(--text-1);
}
.command-search input::placeholder{color:var(--text-3)}
.kbd{
  font-family:var(--mono);font-size:11px;letter-spacing:.06em;color:var(--text-3);
  border:1px solid var(--line);border-radius:5px;padding:1px 5px;flex-shrink:0;
}
.login-link{font-size:14px;color:var(--text-2);transition:color .16s var(--ease)}
.login-link:hover{color:var(--text-1)}
.nav-toggle{
  display:none;width:40px;height:40px;border-radius:10px;border:1px solid var(--line-strong);
  background:var(--glass);align-items:center;justify-content:center;
}
.nav-toggle span{display:block;width:16px;height:1.6px;background:var(--text-1);position:relative}
.nav-toggle span::before,.nav-toggle span::after{
  content:"";position:absolute;left:0;width:16px;height:1.6px;background:var(--text-1);
  transition:transform .2s var(--ease);
}
.nav-toggle span::before{top:-5px}
.nav-toggle span::after{top:5px}

/* 移动抽屉 */
.drawer-scrim{
  position:fixed;inset:0;background:rgba(3,5,12,0.7);z-index:70;
  opacity:0;pointer-events:none;transition:opacity .24s var(--ease);
}
.drawer-scrim.is-open{opacity:1;pointer-events:auto}
.drawer{
  position:fixed;top:0;right:0;bottom:0;width:min(340px,86vw);z-index:80;
  background:rgba(10,16,32,0.98);
  border-left:1px solid var(--line-strong);
  padding:22px;display:flex;flex-direction:column;gap:18px;
  transform:translateX(102%);transition:transform .28s var(--ease);
  overflow-y:auto;
}
.drawer.is-open{transform:translateX(0)}
.drawer-head{display:flex;align-items:center;justify-content:space-between}
.drawer-title{font-size:15px;font-weight:700}
.drawer-close{
  width:34px;height:34px;border-radius:9px;border:1px solid var(--line);
  display:grid;place-items:center;font-size:20px;line-height:1;color:var(--text-2);
}
.drawer-close:hover{border-color:var(--line-strong);color:var(--text-1)}
.drawer-search{
  display:flex;align-items:center;gap:8px;height:44px;padding:0 12px;border-radius:10px;
  background:var(--glass);border:1px solid var(--line);
}
.drawer-search svg{width:16px;height:16px;fill:none;stroke:var(--text-3);stroke-width:1.8;stroke-linecap:round}
.drawer-search input{flex:1;min-width:0;border:0;background:none;outline:none;font-size:14px}
.drawer-search input::placeholder{color:var(--text-3)}
.drawer-nav{display:flex;flex-direction:column;gap:2px}
.drawer-nav a{
  padding:12px 10px;border-radius:10px;font-size:15px;color:var(--text-2);
  transition:background .16s var(--ease),color .16s var(--ease);
}
.drawer-nav a:hover,.drawer-nav a:focus-visible{background:rgba(255,255,255,0.05);color:var(--text-1)}
.drawer-nav a[aria-current="page"]{color:var(--text-1);font-weight:600;background:rgba(55,194,255,0.10)}

/* ---------- Hero / 分类头部 ---------- */
.page-hero{position:relative;overflow:hidden;padding:52px 0 64px;background:radial-gradient(120% 90% at 78% 0%,rgba(55,194,255,0.10),transparent 62%)}
.hero-bg{
  position:absolute;inset:0;opacity:.30;
  background:url("/assets/images/backpic/back-2.webp") center/cover no-repeat;
  -webkit-mask-image:linear-gradient(180deg,#000 0%,rgba(0,0,0,0.55) 55%,transparent 100%);
  mask-image:linear-gradient(180deg,#000 0%,rgba(0,0,0,0.55) 55%,transparent 100%);
}
.hero-grid{
  position:absolute;inset:0;pointer-events:none;
  background-image:linear-gradient(rgba(120,180,255,0.045) 1px,transparent 1px),linear-gradient(90deg,rgba(120,180,255,0.045) 1px,transparent 1px);
  background-size:24px 24px;
  -webkit-mask-image:linear-gradient(180deg,rgba(0,0,0,0.9),transparent 72%);
  mask-image:linear-gradient(180deg,rgba(0,0,0,0.9),transparent 72%);
}
.hero-inner{position:relative;z-index:1}
.breadcrumb{margin-bottom:22px}
.breadcrumb ol{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--text-3)}
.breadcrumb li{display:flex;align-items:center;gap:8px}
.breadcrumb li+li::before{content:"/";color:var(--text-3);opacity:.6}
.breadcrumb a{color:var(--text-2);transition:color .16s var(--ease)}
.breadcrumb a:hover{color:var(--primary)}
.breadcrumb [aria-current="page"]{color:var(--text-1)}
.tag{
  display:inline-flex;align-items:center;gap:6px;height:26px;padding:0 10px;
  border-radius:var(--r-badge);font-size:12px;letter-spacing:.06em;
  background:rgba(138,107,255,0.14);color:#BCA9FF;border:1px solid rgba(138,107,255,0.28);
}
.hero-head{display:flex;align-items:flex-start;justify-content:space-between;gap:40px;flex-wrap:wrap}
.hero-main{max-width:760px}
h1{
  margin-top:18px;font-size:44px;line-height:1.25;font-weight:800;letter-spacing:0;
  background:linear-gradient(180deg,#FFFFFF 30%,#B8CDEB 100%);
  -webkit-background-clip:text;background-clip:text;color:transparent;
}
.hero-lead{margin-top:18px;font-size:17px;line-height:1.85;color:var(--text-2);max-width:700px}
.hero-aside{display:flex;flex-direction:column;gap:10px;padding-top:44px}
.hero-aside .hint{font-size:13px;color:var(--text-3)}
.hero-foot{
  display:flex;align-items:flex-end;justify-content:space-between;gap:32px;flex-wrap:wrap;
  margin-top:40px;padding-top:26px;border-top:1px solid var(--line);
}
.hero-stats{display:flex;gap:44px;flex-wrap:wrap}
.stat-label{font-size:12px;letter-spacing:.08em;color:var(--text-3)}
.stat-value{margin-top:4px;font-family:var(--mono);font-size:18px;color:var(--text-1);letter-spacing:.02em}

/* ---------- 通用板块 ---------- */
.section{padding:var(--section-py) 0;position:relative}
.section-alt{background:linear-gradient(180deg,rgba(10,16,32,0.72),rgba(5,7,15,0))}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:28px;flex-wrap:wrap;margin-bottom:44px}
.eyebrow{
  font-family:var(--mono);font-size:12px;letter-spacing:.16em;text-transform:uppercase;
  color:var(--primary);opacity:.9;
}
h2{margin-top:10px;font-size:30px;line-height:1.25;font-weight:700;letter-spacing:0}
.section-desc{margin-top:12px;max-width:640px;font-size:15px;line-height:1.85;color:var(--text-2)}
.text-link{
  display:inline-flex;align-items:center;gap:6px;font-size:14px;color:var(--primary);
  border-bottom:1px solid transparent;padding-bottom:1px;
  transition:border-color .16s var(--ease),color .16s var(--ease),transform .16s var(--ease);
}
.text-link:hover{border-bottom-color:var(--primary);transform:translateX(2px)}

.glass{
  background:var(--glass);
  -webkit-backdrop-filter:blur(14px) saturate(140%);backdrop-filter:blur(14px) saturate(140%);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  box-shadow:var(--shadow-card);
  transition:border-color .16s var(--ease),transform .16s var(--ease),box-shadow .16s var(--ease),background .16s var(--ease);
}
@supports not ((-webkit-backdrop-filter:blur(1px)) or (backdrop-filter:blur(1px))){
  .glass{background:var(--glass-fallback)}
}
.glass:hover{border-color:var(--line-strong);transform:translateY(-2px);box-shadow:0 28px 64px -28px rgba(0,0,0,0.9),inset 0 1px 0 rgba(255,255,255,0.11)}

/* ---------- 版本时间线 ---------- */
.version-list{position:relative;display:grid;gap:22px}
.version-list::before{
  content:"";position:absolute;left:168px;top:14px;bottom:14px;width:2px;
  background:linear-gradient(180deg,rgba(55,194,255,0.85),rgba(55,194,255,0.06));
}
.version-item{display:grid;grid-template-columns:150px 1fr;gap:36px;align-items:start;position:relative}
.version-item::before{
  content:"";position:absolute;left:162px;top:28px;width:10px;height:10px;border-radius:50%;
  background:var(--primary);box-shadow:0 0 0 4px rgba(55,194,255,0.16);
}
.version-item.is-current::before{background:var(--action);box-shadow:0 0 0 4px rgba(43,232,166,0.22)}
.version-side{text-align:right;padding-top:14px}
.version-no{
  font-family:var(--mono);font-size:24px;line-height:1.2;letter-spacing:.03em;color:var(--primary);
}
.version-item.is-current .version-no{color:var(--action)}
.version-date{margin-top:6px;font-size:12px;letter-spacing:.06em;color:var(--text-3);font-family:var(--mono)}
.version-card{padding:24px 26px}
.version-card-head{display:flex;align-items:center;gap:12px;flex-wrap:wrap}
.version-card-head h3{font-size:18px;font-weight:700;letter-spacing:0}
.badge{
  display:inline-flex;align-items:center;height:24px;padding:0 9px;border-radius:var(--r-badge);
  font-size:12px;letter-spacing:.04em;
}
.badge-live{background:rgba(43,232,166,0.14);color:#7FF2C9;border:1px solid rgba(43,232,166,0.32)}
.badge-soon{background:rgba(255,179,71,0.13);color:#FFC876;border:1px solid rgba(255,179,71,0.3)}
.badge-past{background:rgba(120,180,255,0.10);color:var(--text-3);border:1px solid var(--line)}
.version-scope{margin-top:4px;font-size:13px;color:var(--text-3)}
.version-points{margin-top:16px;display:grid;gap:10px}
.version-points li{
  position:relative;padding-left:24px;font-size:15px;line-height:1.75;color:var(--text-2);
}
.version-points li::before{
  content:"✓";position:absolute;left:0;top:0;color:var(--action);font-size:14px;
}
.version-foot{margin-top:18px;padding-top:16px;border-top:1px solid var(--line);display:flex;justify-content:flex-end}

/* ---------- 更新分类卡 ---------- */
.topic-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:24px}
.topic-card{padding:26px 24px;display:flex;flex-direction:column;gap:12px;min-height:100%}
.topic-icon{
  width:42px;height:42px;border-radius:12px;display:grid;place-items:center;
  background:linear-gradient(150deg,rgba(55,194,255,0.18),rgba(138,107,255,0.14));
  border:1px solid var(--line);
}
.topic-icon svg{width:20px;height:20px;fill:none;stroke:var(--primary);stroke-width:1.7;stroke-linecap:round;stroke-linejoin:round}
.topic-card h3{font-size:18px;font-weight:700;line-height:1.4}
.topic-card p{font-size:14px;line-height:1.8;color:var(--text-2)}
.topic-card .text-link{margin-top:auto;padding-top:6px}

/* ---------- 查看方式 ---------- */
.howto{display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:center}
.howto-media{position:relative;border-radius:var(--r-img);overflow:hidden;border:1px solid var(--line);box-shadow:var(--shadow-card)}
.howto-media img{width:100%;aspect-ratio:4/3;object-fit:cover;transition:transform .36s var(--ease)}
.howto-media:hover img{transform:scale(1.03)}
.howto-media figcaption{
  position:absolute;left:0;right:0;bottom:0;padding:14px 18px;font-size:13px;color:var(--text-2);
  background:linear-gradient(180deg,transparent,rgba(5,7,15,0.9));
}
.step-list{display:grid;gap:18px;margin-top:8px}
.step-item{display:grid;grid-template-columns:52px 1fr;gap:18px;align-items:start;padding:20px 22px}
.step-num{
  font-family:var(--mono);font-size:30px;line-height:1;color:rgba(55,194,255,0.35);font-weight:700;
}
.step-item h3{font-size:17px;font-weight:700;line-height:1.5}
.step-item p{margin-top:6px;font-size:14px;line-height:1.8;color:var(--text-2)}

/* ---------- FAQ ---------- */
.faq-wrap{max-width:880px;margin:0 auto;display:grid;gap:14px}
.faq-item{
  background:var(--glass);border:1px solid var(--line);border-radius:var(--r-card);
  padding:0 22px;
  -webkit-backdrop-filter:blur(14px) saturate(140%);backdrop-filter:blur(14px) saturate(140%);
  transition:border-color .16s var(--ease),background .16s var(--ease);
}
.faq-item:hover{border-color:var(--line-strong)}
.faq-item[open]{border-color:var(--line-strong);background:rgba(255,255,255,0.06)}
.faq-item summary{
  list-style:none;cursor:pointer;display:flex;align-items:center;justify-content:space-between;gap:18px;
  padding:20px 0;font-size:17px;font-weight:600;color:var(--text-1);
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{
  content:"+";font-size:20px;line-height:1;color:var(--primary);flex-shrink:0;
  transition:transform .24s var(--ease);
}
.faq-item[open] summary::after{transform:rotate(45deg)}
.faq-body{padding:0 0 20px;font-size:15px;line-height:1.85;color:var(--text-2);max-width:720px}

/* ---------- 报名 / 咨询 CTA ---------- */
.cta-panel{
  display:grid;grid-template-columns:1.05fr 0.95fr;gap:48px;align-items:center;
  padding:52px 48px;
  border-radius:var(--r-card);
  border:1px solid var(--line-strong);
  background:
    radial-gradient(90% 120% at 12% 0%,rgba(55,194,255,0.14),transparent 60%),
    radial-gradient(80% 120% at 92% 100%,rgba(138,107,255,0.14),transparent 62%),
    rgba(17,26,46,0.72);
  box-shadow:var(--shadow-card);
}
.cta-panel h2{font-size:30px}
.cta-panel > div > p{margin-top:14px;font-size:15px;line-height:1.85;color:var(--text-2);max-width:440px}
.benefit-list{margin-top:22px;display:grid;gap:10px}
.benefit-list li{position:relative;padding-left:24px;font-size:15px;color:var(--text-2)}
.benefit-list li::before{
  content:"✓";position:absolute;left:0;top:0;color:var(--action);font-size:14px;
}
.cta-form{
  background:rgba(255,255,255,0.05);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  padding:26px;
  box-shadow:inset 0 1px 0 rgba(255,255,255,0.08),0 24px 60px -32px rgba(0,0,0,0.9);
  -webkit-backdrop-filter:blur(14px) saturate(140%);backdrop-filter:blur(14px) saturate(140%);
  display:grid;gap:16px;
}
.field{display:grid;gap:8px}
.field label{font-size:14px;color:var(--text-2)}
.field input,.field select{
  height:46px;padding:0 14px;border-radius:12px;
  background:rgba(5,7,15,0.6);border:1px solid var(--line);
  color:var(--text-1);outline:none;
  transition:border-color .16s var(--ease),box-shadow .16s var(--ease);
}
.field input::placeholder{color:var(--text-3)}
.field input:focus,.field select:focus{border-color:var(--primary);box-shadow:0 0 0 6px rgba(55,194,255,0.10)}
.field input[aria-invalid="true"]{border-color:var(--danger)}
.field .err{font-size:13px;color:var(--danger);display:none}
.field.has-error .err{display:block}
.check{display:flex;align-items:flex-start;gap:10px;font-size:13px;color:var(--text-2);line-height:1.7}
.check input{
  appearance:none;-webkit-appearance:none;
  width:18px;height:18px;flex-shrink:0;margin-top:2px;border-radius:5px;
  border:1px solid var(--line-strong);background:rgba(5,7,15,0.6);
  display:grid;place-items:center;cursor:pointer;
  transition:border-color .16s var(--ease),background .16s var(--ease);
}
.check input:checked{background:var(--action);border-color:var(--action)}
.check input:checked::after{content:"✓";font-size:12px;color:#04120C;font-weight:700;line-height:1}
.form-note{font-size:12px;color:var(--text-3)}
.form-success{display:none;font-size:14px;color:var(--action)}
.form-success.is-visible{display:block}

/* ---------- 页脚 ---------- */
.site-footer{
  border-top:1px solid var(--line);
  background:linear-gradient(180deg,rgba(10,16,32,0.9),rgba(5,7,15,1));
  padding:64px 0 28px;
  position:relative;
}
.site-footer::before{
  content:"";position:absolute;left:0;right:0;top:0;height:120px;pointer-events:none;
  background:radial-gradient(70% 100% at 50% 0%,rgba(55,194,255,0.08),transparent 70%);
}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:40px}
.footer-desc{margin-top:16px;font-size:14px;line-height:1.8;color:var(--text-3);max-width:300px}
.footer-col h3{font-size:14px;font-weight:700;letter-spacing:.04em;color:var(--text-1);margin-bottom:16px}
.footer-links{display:grid;gap:10px}
.footer-links a{
  font-size:14px;color:var(--text-2);
  transition:color .16s var(--ease),transform .16s var(--ease);
  display:inline-block;
}
.footer-links a:hover{color:var(--text-1);transform:translateX(2px)}
.footer-compliance{font-size:13px;line-height:1.85;color:var(--text-3)}
.footer-compliance strong{display:block;color:var(--text-2);font-size:13px;font-weight:600}
.footer-bottom{
  margin-top:48px;padding-top:22px;border-top:1px solid var(--line);
  display:flex;justify-content:space-between;align-items:center;gap:18px;flex-wrap:wrap;
  font-size:13px;color:var(--text-3);
}
.footer-bottom .domain{font-family:var(--mono);letter-spacing:.06em;color:var(--text-3)}

/* ---------- 入场动效 ---------- */
.fade-up{animation:fadeUp .36s var(--ease) both}
@keyframes fadeUp{from{opacity:0;transform:translateY(8px)}to{opacity:1;transform:translateY(0)}}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation:none !important;transition:none !important}
  html{scroll-behavior:auto}
}

/* ---------- 响应式 ---------- */
@media (max-width:1279px){
  .topic-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
}
@media (max-width:1023px){
  :root{--section-py:72px}
  .main-nav,.command-search,.login-link{display:none}
  .nav-toggle{display:inline-flex}
  .header-actions{margin-left:auto}
  h1{font-size:36px}
  h2,.cta-panel h2{font-size:26px}
  .howto{grid-template-columns:1fr;gap:32px}
  .cta-panel{grid-template-columns:1fr;gap:32px;padding:40px 32px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
  .version-item{grid-template-columns:130px 1fr;gap:28px}
  .version-list::before{left:148px}
  .version-item::before{left:142px}
}
@media (max-width:767px){
  :root{--section-py:48px}
  .container{padding:0 18px}
  body{font-size:16px}
  h1{font-size:30px;margin-top:14px}
  h2,.cta-panel h2{font-size:24px}
  .hero-head{gap:24px}
  .hero-aside{padding-top:0}
  .hero-foot{gap:20px}
  .hero-stats{gap:28px}
  .version-list::before{display:none}
  .version-item{grid-template-columns:1fr;gap:12px}
  .version-item::before{display:none}
  .version-side{text-align:left;padding-top:0;display:flex;align-items:baseline;gap:12px}
  .version-no{font-size:22px}
  .version-card{padding:20px}
  .topic-grid{grid-template-columns:1fr}
  .step-item{grid-template-columns:40px 1fr;gap:14px;padding:18px}
  .step-num{font-size:24px}
  .cta-panel{padding:32px 22px}
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .footer-bottom{flex-direction:column;align-items:flex-start;gap:8px}
  .faq-item{padding:0 18px}
}
@media (max-width:480px){
  .hero-stats{flex-direction:column;gap:16px}
  .btn{width:100%}
  .header-actions .btn{width:auto}
  .version-card-head{gap:8px}
  .footer-desc{max-width:none}
}

/* roulang page: category2 */
:root{
  --bg-0:#05070F;
  --bg-1:#0A1020;
  --bg-2:#111A2E;
  --line:rgba(120,180,255,.16);
  --line-strong:rgba(120,180,255,.32);
  --text-1:#E9F1FF;
  --text-2:#A6B6D0;
  --text-3:#6F7F9B;
  --primary:#37C2FF;
  --primary-2:#8A6BFF;
  --action:#2BE8A6;
  --warn:#FFB347;
  --danger:#FF6B6B;
  --glass:rgba(255,255,255,.045);
  --glass-fallback:rgba(17,26,46,.85);
  --radius-card:18px;
  --radius-btn:12px;
  --radius-img:14px;
  --radius-badge:6px;
  --shadow-card:0 24px 60px -28px rgba(0,0,0,.85), inset 0 1px 0 rgba(255,255,255,.07);
  --shadow-card-hover:0 28px 66px -26px rgba(0,0,0,.9), inset 0 1px 0 rgba(255,255,255,.14);
  --ease:cubic-bezier(.22,.61,.36,1);
  --font-sans:"PingFang SC","HarmonyOS Sans SC","Source Han Sans SC","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  --font-mono:"Space Grotesk","Inter",ui-monospace,SFMono-Regular,Menlo,monospace;
  --container:1200px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:var(--font-sans);
  font-size:17px;
  line-height:1.8;
  color:var(--text-1);
  background:var(--bg-0);
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
  overflow-x:hidden;
}
img{max-width:100%;display:block;border-style:none}
a{color:var(--primary);text-decoration:none;transition:color .16s var(--ease),border-color .16s var(--ease),transform .16s var(--ease)}
a:hover{color:#7FD8FF}
button,input,select,textarea{font:inherit;color:inherit}
button{cursor:pointer;background:none;border:0}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4,p{margin:0}
h1,h2,h3{letter-spacing:0;line-height:1.25;font-weight:700}
h1{font-size:44px;font-weight:800}
h2{font-size:30px}
h3{font-size:20px}
p{color:var(--text-2)}
strong{color:var(--text-1)}
::selection{background:rgba(55,194,255,.28);color:#fff}
:focus-visible{outline:2px solid rgba(55,194,255,.65);outline-offset:3px;border-radius:8px}
::-webkit-scrollbar{width:10px;height:10px}
::-webkit-scrollbar-track{background:var(--bg-1)}
::-webkit-scrollbar-thumb{background:rgba(120,180,255,.22);border-radius:8px}
::-webkit-scrollbar-thumb:hover{background:rgba(120,180,255,.36)}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 24px}
.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}

/* ---------- Header ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(5,7,15,.62);
  -webkit-backdrop-filter:blur(14px) saturate(140%);
  backdrop-filter:blur(14px) saturate(140%);
  border-bottom:1px solid transparent;
  transition:background .24s var(--ease),border-color .24s var(--ease);
}
.site-header.is-scrolled{background:rgba(5,7,15,.92);border-bottom-color:var(--line)}
.header-inner{display:flex;align-items:center;gap:20px;height:72px}
.brand{display:inline-flex;align-items:center;gap:10px;color:var(--text-1);flex:0 0 auto}
.brand:hover{color:var(--text-1)}
.brand-mark{width:28px;height:28px;flex:0 0 auto;color:var(--primary);filter:drop-shadow(0 0 7px rgba(55,194,255,.55))}
.brand-mark svg{width:100%;height:100%;fill:none;stroke:currentColor;stroke-width:1.7;stroke-linecap:round;stroke-linejoin:round}
.brand-text{display:flex;flex-direction:column;line-height:1.12}
.brand-text strong{font-size:16px;font-weight:700;letter-spacing:.02em}
.brand-text span{font-size:11px;color:var(--text-3);letter-spacing:.09em;font-family:var(--font-mono)}
.main-nav{display:flex;align-items:center;gap:2px;margin:0 auto}
.nav-link{
  position:relative;display:inline-block;padding:8px 12px;
  font-size:15px;color:var(--text-2);border-radius:8px;
  transition:color .16s var(--ease);
}
.nav-link::after{
  content:"";position:absolute;left:12px;right:12px;bottom:1px;height:2px;
  background:var(--primary);border-radius:2px;
  transform:scaleX(0);transform-origin:left center;
  transition:transform .24s var(--ease);
}
.nav-link:hover{color:var(--text-1)}
.nav-link:hover::after{transform:scaleX(1)}
.nav-link.active{color:var(--text-1)}
.nav-link.active::after{transform:scaleX(1)}
.nav-actions{display:flex;align-items:center;gap:12px;flex:0 0 auto}
.command-search{
  display:flex;align-items:center;gap:8px;
  width:240px;height:38px;padding:0 10px;
  border:1px solid var(--line);border-radius:10px;
  background:rgba(255,255,255,.04);
  transition:border-color .16s var(--ease),box-shadow .16s var(--ease);
}
.command-search:focus-within{border-color:var(--primary);box-shadow:0 0 0 4px rgba(55,194,255,.16)}
.command-search .search-icon{width:15px;height:15px;flex:0 0 auto;color:var(--text-3)}
.command-search input{
  flex:1 1 auto;min-width:0;height:100%;
  background:none;border:0;outline:none;
  font-size:14px;color:var(--text-1);
}
.command-search input::placeholder{color:var(--text-3)}
.kbd{
  flex:0 0 auto;font-family:var(--font-mono);font-size:11px;line-height:1;
  color:var(--text-3);border:1px solid var(--line);border-radius:5px;padding:3px 5px;
}
.nav-login{font-size:15px;color:var(--text-2);padding:6px 4px}
.nav-login:hover{color:var(--text-1)}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:44px;padding:0 20px;border-radius:var(--radius-btn);
  font-size:15px;font-weight:600;border:1px solid transparent;
  transition:transform .16s var(--ease),box-shadow .16s var(--ease),background .16s var(--ease),border-color .16s var(--ease),color .16s var(--ease),filter .16s var(--ease);
}
.btn-primary{
  background:var(--action);color:#04120C;
  box-shadow:0 0 0 1px rgba(43,232,166,.45),0 10px 30px -10px rgba(43,232,166,.55);
}
.btn-primary:hover{
  color:#04120C;filter:brightness(1.06);transform:translateY(-1px);
  box-shadow:0 0 0 1px rgba(43,232,166,.5),0 12px 40px -10px rgba(43,232,166,.62);
}
.btn-primary:active{transform:none;filter:brightness(.98)}
.btn-ghost{
  background:var(--glass);border-color:var(--line-strong);color:var(--text-1);
  -webkit-backdrop-filter:blur(14px) saturate(140%);backdrop-filter:blur(14px) saturate(140%);
}
.btn-ghost:hover{border-color:var(--primary);color:#fff}
.btn:focus-visible{outline:2px solid rgba(43,232,166,.5);outline-offset:2px}
.btn-sm{height:38px;padding:0 16px;font-size:14px;border-radius:10px}
.nav-toggle{
  display:none;width:40px;height:40px;border-radius:10px;
  border:1px solid var(--line);background:var(--glass);color:var(--text-1);
  align-items:center;justify-content:center;
}
.nav-toggle svg{width:18px;height:18px;fill:none;stroke:currentColor;stroke-width:1.8;stroke-linecap:round}

/* ---------- Drawer ---------- */
.drawer{position:fixed;inset:0;z-index:90;visibility:hidden;pointer-events:none}
.drawer.is-open{visibility:visible;pointer-events:auto}
.drawer-backdrop{
  position:absolute;inset:0;background:rgba(3,5,12,.72);
  opacity:0;transition:opacity .24s var(--ease);
}
.drawer.is-open .drawer-backdrop{opacity:1}
.drawer-panel{
  position:absolute;top:0;right:0;height:100%;width:min(360px,88vw);
  background:var(--bg-1);border-left:1px solid var(--line);
  padding:20px;display:flex;flex-direction:column;gap:18px;overflow-y:auto;
  transform:translateX(100%);transition:transform .28s var(--ease);
}
.drawer.is-open .drawer-panel{transform:none}
.drawer-head{display:flex;align-items:center;justify-content:space-between;gap:12px}
.drawer-close{width:36px;height:36px;border-radius:10px;border:1px solid var(--line);color:var(--text-2);display:inline-flex;align-items:center;justify-content:center}
.drawer-close:hover{color:var(--text-1);border-color:var(--line-strong)}
.drawer-close svg{width:16px;height:16px;fill:none;stroke:currentColor;stroke-width:1.8;stroke-linecap:round}
.drawer-search{
  display:flex;align-items:center;gap:8px;height:42px;padding:0 12px;
  border:1px solid var(--line);border-radius:10px;background:rgba(255,255,255,.04);
}
.drawer-search:focus-within{border-color:var(--primary)}
.drawer-search input{flex:1;min-width:0;background:none;border:0;outline:none;font-size:15px}
.drawer-nav{display:flex;flex-direction:column;gap:2px}
.drawer-nav a{
  display:block;padding:12px 12px;border-radius:10px;color:var(--text-2);font-size:15px;
  border:1px solid transparent;transition:background .16s var(--ease),color .16s var(--ease),border-color .16s var(--ease);
}
.drawer-nav a:hover{background:rgba(255,255,255,.05);color:var(--text-1)}
.drawer-nav a.active{color:var(--text-1);border-color:var(--line-strong);background:rgba(55,194,255,.08)}
.drawer-cta{margin-top:auto;display:flex;flex-direction:column;gap:10px}
.drawer-cta .btn{width:100%}

/* ---------- Hero ---------- */
.page-hero{position:relative;overflow:hidden;padding:52px 0 76px;border-bottom:1px solid var(--line)}
.page-hero::before{
  content:"";position:absolute;inset:0;
  background:url("/assets/images/backpic/back-1.png") center/cover no-repeat;
  opacity:.34;
}
.page-hero::after{
  content:"";position:absolute;inset:0;
  background-image:
    radial-gradient(900px 420px at 18% -10%,rgba(55,194,255,.16),transparent 70%),
    linear-gradient(rgba(120,180,255,.05) 1px,transparent 1px),
    linear-gradient(90deg,rgba(120,180,255,.05) 1px,transparent 1px);
  background-size:auto,24px 24px,24px 24px;
  -webkit-mask-image:linear-gradient(180deg,#000 0%,rgba(0,0,0,.55) 62%,transparent 100%);
  mask-image:linear-gradient(180deg,#000 0%,rgba(0,0,0,.55) 62%,transparent 100%);
  pointer-events:none;
}
.page-hero > .container{position:relative;z-index:1}
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;margin-bottom:26px;font-size:13px;color:var(--text-3)}
.breadcrumb li{display:inline-flex;align-items:center;gap:8px}
.breadcrumb li + li::before{content:"/";color:rgba(120,180,255,.35)}
.breadcrumb a{color:var(--text-3)}
.breadcrumb a:hover{color:var(--primary)}
.breadcrumb .current{color:var(--text-2)}
.hero-grid{display:grid;grid-template-columns:minmax(0,1fr) 300px;gap:48px;align-items:end}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-family:var(--font-mono);font-size:12px;letter-spacing:.14em;text-transform:uppercase;
  color:var(--primary);margin-bottom:16px;
}
.eyebrow::before{content:"";width:18px;height:1px;background:currentColor;opacity:.7}
.badge{
  display:inline-flex;align-items:center;gap:6px;
  height:26px;padding:0 10px;border-radius:var(--radius-badge);
  font-size:12px;font-weight:600;letter-spacing:.02em;white-space:nowrap;
}
.badge-cat{background:rgba(138,107,255,.14);color:#B9A8FF;border:1px solid rgba(138,107,255,.3)}
.hero-title{margin:14px 0 18px;max-width:15em}
.hero-lead{max-width:38em;font-size:17px;color:var(--text-2)}
.hero-stats{display:flex;flex-wrap:wrap;gap:36px;margin-top:34px;padding-top:26px;border-top:1px solid var(--line)}
.stat{display:flex;flex-direction:column;gap:4px}
.stat-label{font-size:12px;color:var(--text-3);letter-spacing:.08em;font-family:var(--font-mono);text-transform:uppercase}
.stat-value{font-family:var(--font-mono);font-size:24px;font-weight:700;color:var(--text-1);line-height:1.2}
.stat-value em{font-style:normal;color:var(--action)}
.hero-aside{
  display:flex;flex-direction:column;gap:14px;
  padding:22px;border-radius:var(--radius-card);
  background:var(--glass-fallback);
  border:1px solid var(--line);box-shadow:var(--shadow-card);
}
.hero-aside h2{font-size:16px;font-weight:700;color:var(--text-1)}
.aside-note{font-size:13px;color:var(--text-3);line-height:1.7}
.hero-aside .btn{width:100%}

/* ---------- Sections ---------- */
.section{padding:96px 0}
.section-alt{background:var(--bg-1);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.section-head{max-width:760px;margin-bottom:48px}
.section-head h2{margin-bottom:14px}
.section-sub{font-size:16px;color:var(--text-2)}

/* ---------- Step cards ---------- */
.step-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:24px}
.glass-card{
  position:relative;overflow:hidden;
  padding:28px;border-radius:var(--radius-card);
  background:var(--glass-fallback);
  border:1px solid var(--line);
  box-shadow:var(--shadow-card);
  transition:transform .16s var(--ease),border-color .16s var(--ease),box-shadow .16s var(--ease);
}
@supports ((-webkit-backdrop-filter:blur(14px)) or (backdrop-filter:blur(14px))){
  .glass-card{background:var(--glass);-webkit-backdrop-filter:blur(14px) saturate(140%);backdrop-filter:blur(14px) saturate(140%)}
}
.glass-card:hover{transform:translateY(-2px);border-color:var(--line-strong);box-shadow:var(--shadow-card-hover)}
.step-card{padding-top:30px}
.step-num{
  position:absolute;top:6px;right:20px;
  font-family:var(--font-mono);font-size:76px;font-weight:700;line-height:1;
  color:rgba(55,194,255,.11);pointer-events:none;user-select:none;
}
.step-card h3{position:relative;margin-bottom:12px;padding-right:70px}
.step-card p{position:relative;font-size:15px;line-height:1.8}
.mini-list{margin-top:16px;display:flex;flex-direction:column;gap:8px}
.mini-list li{
  position:relative;padding-left:18px;font-size:14px;color:var(--text-2);line-height:1.7;
}
.mini-list li::before{
  content:"";position:absolute;left:0;top:.62em;
  width:6px;height:6px;border-radius:50%;
  background:var(--primary);box-shadow:0 0 8px rgba(55,194,255,.6);
}

/* ---------- Callout ---------- */
.callout-warn{
  position:relative;margin-top:40px;
  padding:26px 28px 26px 32px;border-radius:var(--radius-card);
  background:rgba(255,179,71,.07);
  border:1px solid rgba(255,179,71,.24);
  border-left:3px solid var(--warn);
}
.callout-warn h3{color:#FFD9A3;font-size:18px;margin-bottom:10px}
.callout-warn p{font-size:15px;color:#E4D4BE}
.callout-warn .mini-list li::before{background:var(--warn);box-shadow:0 0 8px rgba(255,179,71,.55)}
.callout-warn .mini-list li{color:#E4D4BE}

/* ---------- Split ---------- */
.split{display:grid;grid-template-columns:minmax(0,.92fr) minmax(0,1fr);gap:56px;align-items:center}
.split-media{position:relative;border-radius:var(--radius-img);overflow:hidden;border:1px solid var(--line)}
.split-media img{width:100%;height:100%;aspect-ratio:4/3;object-fit:cover;transition:transform .36s var(--ease),filter .36s var(--ease)}
.split-media::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(5,7,15,.05),rgba(5,7,15,.55));
  pointer-events:none;
}
.split-media:hover img{transform:scale(1.03);filter:brightness(1.06)}
.split-body h2{margin-bottom:14px}
.split-body > p{font-size:16px;margin-bottom:22px}
.check-list{display:flex;flex-direction:column;gap:14px}
.check-list li{
  position:relative;padding-left:32px;font-size:15px;color:var(--text-2);line-height:1.75;
}
.check-list li::before{
  content:"";position:absolute;left:0;top:5px;
  width:18px;height:18px;border-radius:6px;
  border:1px solid rgba(43,232,166,.45);
  background:rgba(43,232,166,.12);
}
.check-list li::after{
  content:"";position:absolute;left:6px;top:10px;
  width:6px;height:3px;border-left:2px solid var(--action);border-bottom:2px solid var(--action);
  transform:rotate(-45deg);
}
.check-list strong{color:var(--text-1);font-weight:600}

/* ---------- Fix list ---------- */
.fix-list{border-top:1px solid var(--line)}
.fix-row{
  display:grid;grid-template-columns:280px minmax(0,1fr);gap:32px;
  padding:24px 4px;border-bottom:1px solid var(--line);
  transition:background .16s var(--ease);
}
.fix-row:hover{background:rgba(255,255,255,.025)}
.fix-q{font-size:16px;font-weight:600;color:var(--text-1);display:flex;align-items:flex-start;gap:10px}
.fix-q::before{
  content:"";flex:0 0 auto;width:6px;height:6px;border-radius:50%;margin-top:.65em;
  background:var(--primary-2);box-shadow:0 0 8px rgba(138,107,255,.55);
}
.fix-a{font-size:15px;color:var(--text-2);line-height:1.8}

/* ---------- FAQ ---------- */
.faq-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px;align-items:start}
.faq-item{
  border-radius:var(--radius-card);
  background:var(--glass-fallback);border:1px solid var(--line);
  box-shadow:var(--shadow-card);
  transition:border-color .16s var(--ease),box-shadow .16s var(--ease);
}
@supports ((-webkit-backdrop-filter:blur(14px)) or (backdrop-filter:blur(14px))){
  .faq-item{background:var(--glass);-webkit-backdrop-filter:blur(14px) saturate(140%);backdrop-filter:blur(14px) saturate(140%)}
}
.faq-item.is-open{border-color:var(--line-strong);box-shadow:var(--shadow-card-hover)}
.faq-q{
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  width:100%;padding:20px 22px;text-align:left;
  font-size:17px;font-weight:600;color:var(--text-1);line-height:1.5;
}
.faq-icon{
  position:relative;width:14px;height:14px;flex:0 0 auto;
  transition:transform .24s var(--ease);
}
.faq-icon::before,.faq-icon::after{
  content:"";position:absolute;background:var(--primary);border-radius:2px;
}
.faq-icon::before{top:6px;left:0;width:14px;height:2px}
.faq-icon::after{top:0;left:6px;width:2px;height:14px}
.faq-q[aria-expanded="true"] .faq-icon{transform:rotate(45deg)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .28s var(--ease)}
.faq-a p{padding:0 22px 22px;font-size:15px;line-height:1.8;color:var(--text-2)}

/* ---------- CTA ---------- */
.cta-band{padding:80px 0 96px}
.cta-card{
  position:relative;overflow:hidden;
  display:grid;grid-template-columns:minmax(0,1fr) auto;gap:40px;align-items:center;
  padding:44px;border-radius:calc(var(--radius-card) + 4px);
  background:var(--bg-2);
  border:1px solid var(--line-strong);
  box-shadow:var(--shadow-card);
}
.cta-card::before{
  content:"";position:absolute;inset:0;
  background-image:
    radial-gradient(600px 300px at 88% 10%,rgba(43,232,166,.14),transparent 70%),
    radial-gradient(500px 260px at 6% 100%,rgba(138,107,255,.16),transparent 70%);
  pointer-events:none;
}
.cta-card > *{position:relative}
.cta-card h2{margin-bottom:12px;font-size:28px}
.cta-card p{font-size:16px;max-width:56em}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px;justify-content:flex-end}

/* ---------- Footer ---------- */
.site-footer{
  position:relative;
  padding:72px 0 0;
  background:var(--bg-1);
  border-top:1px solid var(--line);
}
.site-footer::before{
  content:"";position:absolute;top:0;left:0;right:0;height:1px;
  background:linear-gradient(90deg,transparent,rgba(55,194,255,.5),transparent);
  opacity:.5;
}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:48px;padding-bottom:56px}
.footer-brand .brand{margin-bottom:16px}
.footer-desc{font-size:14px;color:var(--text-3);line-height:1.85;max-width:30em}
.footer-col h3{font-size:14px;font-weight:700;color:var(--text-1);letter-spacing:.04em;margin-bottom:18px}
.footer-links{display:flex;flex-direction:column;gap:12px}
.footer-links a{font-size:14px;color:var(--text-2);transition:color .16s var(--ease),transform .16s var(--ease)}
.footer-links a:hover{color:var(--text-1);transform:translateX(2px)}
.footer-compliance{font-size:13px;color:var(--text-3);line-height:1.85}
.footer-compliance strong{display:block;font-size:13px;color:var(--text-2);margin-bottom:4px}
.footer-bottom{
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:12px;
  padding:22px 0;border-top:1px solid var(--line);
  font-size:13px;color:var(--text-3);
}
.footer-bottom .domain{font-family:var(--font-mono);letter-spacing:.06em;color:var(--text-3)}

/* ---------- Responsive ---------- */
@media (max-width:1279px){
  .hero-grid{gap:36px}
  .footer-grid{gap:36px}
}
@media (max-width:1023px){
  .main-nav{display:none}
  .command-search{display:none}
  .nav-login{display:none}
  .nav-toggle{display:inline-flex}
  h1{font-size:36px}
  h2{font-size:26px}
  .section{padding:72px 0}
  .hero-grid{grid-template-columns:minmax(0,1fr);align-items:start;gap:32px}
  .hero-aside{max-width:none}
  .step-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:20px}
  .split{grid-template-columns:minmax(0,1fr);gap:32px}
  .split-media img{aspect-ratio:16/9}
  .cta-card{grid-template-columns:minmax(0,1fr);gap:28px}
  .cta-actions{justify-content:flex-start}
  .footer-grid{grid-template-columns:1fr 1fr;gap:36px}
}
@media (max-width:767px){
  body{font-size:16px}
  .container{padding:0 18px}
  h1{font-size:32px}
  h2{font-size:24px}
  h3{font-size:18px}
  .header-inner{height:64px;gap:12px}
  .section{padding:48px 0}
  .page-hero{padding:34px 0 52px}
  .hero-title{max-width:none}
  .hero-stats{gap:24px;margin-top:26px;padding-top:20px}
  .stat-value{font-size:20px}
  .step-grid{grid-template-columns:minmax(0,1fr)}
  .fix-row{grid-template-columns:minmax(0,1fr);gap:8px;padding:20px 0}
  .fix-q{font-size:15px}
  .faq-grid{grid-template-columns:minmax(0,1fr)}
  .faq-q{font-size:16px;padding:18px}
  .faq-a p{padding:0 18px 18px}
  .step-num{font-size:60px;top:8px;right:16px}
  .glass-card{padding:22px}
  .callout-warn{padding:22px 20px 22px 22px}
  .cta-card{padding:28px 22px}
  .cta-card h2{font-size:22px}
  .cta-actions .btn{width:100%}
  .footer-grid{grid-template-columns:minmax(0,1fr);gap:28px;padding-bottom:36px}
  .site-footer{padding-top:48px}
  .footer-bottom{flex-direction:column;align-items:flex-start}
}
@media (max-width:479px){
  h1{font-size:27px}
  .brand-text strong{font-size:15px}
  .brand-text span{font-size:10px}
  .btn{padding:0 16px;font-size:14px}
  .hero-stats{gap:18px}
  .stat{min-width:calc(50% - 18px)}
  .faq-q{padding:16px}
  .faq-a p{padding:0 16px 16px}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation-duration:.001ms !important;transition-duration:.001ms !important;scroll-behavior:auto !important}
}

/* roulang page: category3 */
:root{
  --bg-0:#05070F;
  --bg-1:#0A1020;
  --bg-2:#111A2E;
  --line:rgba(120,180,255,.16);
  --line-strong:rgba(120,180,255,.32);
  --text-1:#E9F1FF;
  --text-2:#A6B6D0;
  --text-3:#6F7F9B;
  --primary:#37C2FF;
  --primary-2:#8A6BFF;
  --action:#2BE8A6;
  --warn:#FFB347;
  --danger:#FF6B6B;
  --glass:rgba(255,255,255,.045);
  --glass-fallback:rgba(17,26,46,.85);
  --radius:18px;
  --radius-sm:12px;
  --radius-badge:6px;
  --shadow:0 24px 60px -28px rgba(0,0,0,.85), inset 0 1px 0 rgba(255,255,255,.07);
  --container:1200px;
  --ease:cubic-bezier(.22,.61,.36,1);
  --mono:"SFMono-Regular",Consolas,"Liberation Mono",Menlo,monospace;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  background:var(--bg-0);
  color:var(--text-1);
  font-family:"PingFang SC","HarmonyOS Sans SC","Source Han Sans SC","Microsoft YaHei",sans-serif;
  font-size:17px;
  line-height:1.8;
  overflow-x:hidden;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;object-fit:cover}
a{color:var(--primary);text-decoration:none;transition:color .16s var(--ease)}
a:hover{color:var(--text-1)}
button,input,select,textarea{font:inherit;color:inherit}
button{cursor:pointer;background:none;border:none}
h1,h2,h3,h4,p,ul,ol,figure{margin:0}
ul,ol{padding:0;list-style:none}
::selection{background:rgba(55,194,255,.28);color:#fff}
::-webkit-scrollbar{width:10px;height:10px}
::-webkit-scrollbar-track{background:var(--bg-1)}
::-webkit-scrollbar-thumb{background:rgba(120,180,255,.22);border-radius:999px}
::-webkit-scrollbar-thumb:hover{background:rgba(120,180,255,.36)}
:focus-visible{outline:2px solid rgba(43,232,166,.55);outline-offset:2px;border-radius:6px}

.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 24px}
.section{padding:96px 0;position:relative}
.section--tight{padding:72px 0}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:40px;flex-wrap:wrap}
.section-title{font-size:30px;line-height:1.25;font-weight:800;letter-spacing:0}
.section-sub{color:var(--text-2);font-size:15px;margin-top:10px;max-width:620px}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12px;letter-spacing:.06em;color:var(--primary);
  text-transform:uppercase;font-family:var(--mono);
  padding:6px 12px;border-radius:999px;
  border:1px solid var(--line-strong);
  background:rgba(55,194,255,.08);
}
.eyebrow::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--action);box-shadow:0 0 10px rgba(43,232,166,.8)}

/* ---------- 头部导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:80;
  background:rgba(5,7,15,.72);
  backdrop-filter:blur(14px) saturate(140%);
  -webkit-backdrop-filter:blur(14px) saturate(140%);
  border-bottom:1px solid transparent;
  transition:background .24s var(--ease),border-color .24s var(--ease);
}
.site-header.is-scrolled{background:rgba(5,7,15,.92);border-bottom-color:var(--line)}
.nav-inner{display:flex;align-items:center;gap:28px;height:76px}
.brand{display:flex;align-items:center;gap:10px;color:var(--text-1);flex-shrink:0}
.brand:hover{color:var(--text-1)}
.brand-mark{
  width:34px;height:34px;display:grid;place-items:center;
  border-radius:10px;border:1px solid var(--line-strong);
  background:linear-gradient(160deg,rgba(55,194,255,.18),rgba(138,107,255,.12));
  box-shadow:0 0 18px -6px rgba(55,194,255,.65);
}
.brand-mark svg{width:20px;height:20px;fill:none;stroke:var(--primary);stroke-width:1.6;stroke-linecap:round;stroke-linejoin:round}
.brand-text{display:flex;flex-direction:column;line-height:1.15}
.brand-text strong{font-size:16px;font-weight:800;letter-spacing:.02em}
.brand-text span{font-size:11px;color:var(--text-3);letter-spacing:.06em}
.main-nav{display:flex;align-items:center;gap:22px;margin-left:8px}
.nav-link{
  position:relative;font-size:15px;color:var(--text-2);
  padding:6px 0;white-space:nowrap;font-weight:500;
}
.nav-link::after{
  content:"";position:absolute;left:0;right:0;bottom:-2px;height:2px;
  background:var(--primary);border-radius:2px;
  transform:scaleX(0);transform-origin:left;
  transition:transform .24s var(--ease);
}
.nav-link:hover{color:var(--text-1)}
.nav-link:hover::after{transform:scaleX(1)}
.nav-link.active{color:var(--text-1)}
.nav-link.active::after{transform:scaleX(1);background:var(--action);box-shadow:0 0 12px rgba(43,232,166,.7)}
.nav-actions{display:flex;align-items:center;gap:14px;margin-left:auto}
.command-search{
  display:flex;align-items:center;gap:8px;
  width:240px;height:40px;padding:0 12px;
  border-radius:10px;border:1px solid var(--line);
  background:var(--glass);color:var(--text-3);
  font-size:14px;transition:border-color .16s var(--ease),box-shadow .16s var(--ease);
}
.command-search:focus-within{border-color:var(--primary);box-shadow:0 0 0 8px rgba(55,194,255,.10)}
.command-search svg{width:16px;height:16px;flex-shrink:0;stroke:currentColor;fill:none;stroke-width:1.7}
.command-search input{
  flex:1;min-width:0;border:none;background:none;outline:none;
  font-size:14px;color:var(--text-1);
}
.command-search input::placeholder{color:var(--text-3)}
.kbd{
  font-family:var(--mono);font-size:11px;letter-spacing:.04em;
  padding:2px 6px;border-radius:5px;
  border:1px solid var(--line);color:var(--text-3);
  background:rgba(255,255,255,.04);flex-shrink:0;
}
.link-plain{font-size:15px;color:var(--text-2);font-weight:500}
.link-plain:hover{color:var(--text-1)}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:46px;padding:0 22px;border-radius:var(--radius-sm);
  font-size:15px;font-weight:600;letter-spacing:.01em;
  border:1px solid transparent;white-space:nowrap;
  transition:transform .16s var(--ease),box-shadow .16s var(--ease),background .16s var(--ease),border-color .16s var(--ease),color .16s var(--ease);
}
.btn-primary{
  background:var(--action);color:#04120C;
  box-shadow:0 0 0 1px rgba(43,232,166,.45),0 10px 30px -10px rgba(43,232,166,.55);
}
.btn-primary:hover{
  color:#04120C;transform:translateY(-1px);
  background:#3AF3B2;
  box-shadow:0 0 0 1px rgba(43,232,166,.6),0 16px 40px -12px rgba(43,232,166,.7);
}
.btn-primary:active{transform:translateY(0)}
.btn-ghost{
  background:var(--glass);border-color:var(--line-strong);color:var(--text-1);
}
.btn-ghost:hover{border-color:var(--primary);color:#fff;transform:translateY(-1px)}
.btn-sm{height:40px;padding:0 16px;font-size:14px}
.nav-toggle{
  display:none;width:42px;height:42px;border-radius:10px;
  border:1px solid var(--line);background:var(--glass);
  align-items:center;justify-content:center;
}
.nav-toggle span{display:block;width:18px;height:1.5px;background:var(--text-1);position:relative}
.nav-toggle span::before,.nav-toggle span::after{
  content:"";position:absolute;left:0;width:18px;height:1.5px;background:var(--text-1);
}
.nav-toggle span::before{top:-5px}
.nav-toggle span::after{top:5px}
.drawer{
  position:fixed;inset:0 0 0 auto;width:min(360px,86vw);z-index:120;
  background:var(--glass-fallback);
  background:rgba(10,16,32,.97);
  border-left:1px solid var(--line);
  padding:24px;transform:translateX(104%);
  transition:transform .28s var(--ease);
  display:flex;flex-direction:column;gap:18px;overflow-y:auto;
}
.drawer.open{transform:translateX(0)}
.drawer-close{width:38px;height:38px;border-radius:10px;border:1px solid var(--line);color:var(--text-2);font-size:18px;align-self:flex-end}
.drawer nav{display:flex;flex-direction:column;gap:4px}
.drawer nav a{
  padding:12px 14px;border-radius:10px;color:var(--text-2);font-size:15px;
  border:1px solid transparent;
}
.drawer nav a:hover{background:rgba(255,255,255,.05);color:var(--text-1)}
.drawer nav a.active{color:var(--action);border-color:rgba(43,232,166,.35);background:rgba(43,232,166,.07)}
.drawer .drawer-search{
  display:flex;align-items:center;gap:8px;height:44px;padding:0 12px;
  border-radius:10px;border:1px solid var(--line);background:rgba(255,255,255,.04);
}
.drawer .drawer-search input{flex:1;border:none;background:none;outline:none;font-size:14px;min-width:0}
.scrim{position:fixed;inset:0;background:rgba(3,6,14,.62);opacity:0;visibility:hidden;transition:opacity .24s var(--ease);z-index:110}
.scrim.open{opacity:1;visibility:visible}

/* ---------- 页面头部 ---------- */
.page-head{
  position:relative;overflow:hidden;
  padding:56px 0 72px;
  border-bottom:1px solid var(--line);
}
.page-head::before{
  content:"";position:absolute;inset:0;z-index:0;
  background:
    radial-gradient(720px 320px at 18% 0%,rgba(55,194,255,.10),transparent 70%),
    linear-gradient(180deg,rgba(5,7,15,.55),rgba(5,7,15,.92)),
    url("/assets/images/backpic/back-2.webp") center/cover no-repeat;
  opacity:1;
}
.page-head::after{
  content:"";position:absolute;inset:0;z-index:0;pointer-events:none;
  background-image:linear-gradient(rgba(120,180,255,.05) 1px,transparent 1px),linear-gradient(90deg,rgba(120,180,255,.05) 1px,transparent 1px);
  background-size:24px 24px;
  mask-image:linear-gradient(180deg,rgba(0,0,0,.85),transparent 78%);
  -webkit-mask-image:linear-gradient(180deg,rgba(0,0,0,.85),transparent 78%);
}
.page-head .container{position:relative;z-index:1}
.crumbs{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--text-3);margin-bottom:26px}
.crumbs li{display:flex;align-items:center;gap:8px}
.crumbs li+li::before{content:"/";color:rgba(111,127,155,.6)}
.crumbs a{color:var(--text-2)}
.crumbs a:hover{color:var(--primary)}
.crumbs [aria-current="page"]{color:var(--text-1)}
.page-head-grid{display:grid;grid-template-columns:1.15fr .85fr;gap:48px;align-items:center}
.page-title{
  font-size:44px;line-height:1.2;font-weight:800;letter-spacing:0;
  margin:18px 0 18px;max-width:16em;
}
.page-title em{font-style:normal;color:var(--action)}
.page-lead{color:var(--text-2);font-size:17px;line-height:1.9;max-width:54ch}
.page-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:30px}
.head-figure{
  position:relative;border-radius:var(--radius);overflow:hidden;
  border:1px solid var(--line);box-shadow:var(--shadow);
  aspect-ratio:16/11;background:var(--bg-2);
}
.head-figure img{width:100%;height:100%;filter:saturate(1.05)}
.head-figure::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(5,7,15,.05),rgba(5,7,15,.65));
}
.head-figure .tag-float{
  position:absolute;left:18px;bottom:16px;z-index:2;
  display:inline-flex;align-items:center;gap:8px;
  font-size:12px;letter-spacing:.06em;color:var(--text-1);
  padding:6px 12px;border-radius:999px;
  border:1px solid var(--line-strong);background:rgba(5,7,15,.66);
  backdrop-filter:blur(8px);
}
.head-figure .tag-float::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--action);box-shadow:0 0 10px rgba(43,232,166,.9)}

/* ---------- 徽章 ---------- */
.badge{
  display:inline-flex;align-items:center;
  font-size:12px;font-weight:600;line-height:1;
  padding:6px 10px;border-radius:var(--radius-badge);
  border:1px solid transparent;letter-spacing:.02em;
}
.badge-cat{background:rgba(138,107,255,.12);color:#B8A6FF;border-color:rgba(138,107,255,.3)}
.badge-ok{background:rgba(43,232,166,.12);color:var(--action);border-color:rgba(43,232,166,.3)}
.badge-part{background:rgba(255,179,71,.12);color:var(--warn);border-color:rgba(255,179,71,.3)}
.badge-off{background:rgba(120,180,255,.08);color:var(--text-3);border-color:var(--line)}

/* ---------- 卡片 ---------- */
.card{
  background:var(--glass);
  background:rgba(17,26,46,.62);
  border:1px solid var(--line);
  border-radius:var(--radius);
  box-shadow:var(--shadow);
  transition:border-color .16s var(--ease),transform .16s var(--ease),box-shadow .16s var(--ease);
}
@supports (backdrop-filter:blur(14px)){
  .card{background:var(--glass);backdrop-filter:blur(14px) saturate(140%);-webkit-backdrop-filter:blur(14px) saturate(140%)}
}
.card:hover{border-color:var(--line-strong);transform:translateY(-2px);box-shadow:0 30px 70px -30px rgba(0,0,0,.9),inset 0 1px 0 rgba(255,255,255,.12)}

/* ---------- 图文两列卡 ---------- */
.device-split{display:grid;grid-template-columns:repeat(2,1fr);gap:24px}
.split-card{overflow:hidden;display:flex;flex-direction:column}
.split-media{position:relative;aspect-ratio:16/9;overflow:hidden;background:var(--bg-2)}
.split-media img{width:100%;height:100%;transition:transform .36s var(--ease),filter .36s var(--ease)}
.split-card:hover .split-media img{transform:scale(1.03);filter:brightness(1.08)}
.split-media::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,transparent 40%,rgba(5,7,15,.72))}
.split-media .badge{position:absolute;left:16px;top:16px;z-index:2}
.split-body{padding:26px 26px 28px}
.split-body h3{font-size:20px;line-height:1.4;font-weight:700;margin-bottom:10px}
.split-body p{color:var(--text-2);font-size:15.5px;line-height:1.85}
.split-list{margin-top:16px;display:flex;flex-direction:column;gap:8px}
.split-list li{position:relative;padding-left:20px;font-size:14px;color:var(--text-2)}
.split-list li::before{
  content:"";position:absolute;left:2px;top:.66em;width:6px;height:6px;
  border-radius:2px;background:var(--primary);opacity:.85;
}

/* ---------- 设备矩阵 ---------- */
.matrix{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
.matrix-card{
  padding:20px 18px;display:flex;flex-direction:column;gap:12px;
  border-radius:14px;
}
.matrix-top{display:flex;align-items:center;gap:12px}
.matrix-icon{
  width:38px;height:38px;border-radius:10px;flex-shrink:0;
  display:grid;place-items:center;
  border:1px solid var(--line);background:rgba(55,194,255,.08);
}
.matrix-icon svg{width:19px;height:19px;fill:none;stroke:var(--primary);stroke-width:1.6;stroke-linecap:round;stroke-linejoin:round}
.matrix-name{font-size:15.5px;font-weight:600;line-height:1.3}
.matrix-desc{font-size:13.5px;color:var(--text-3);line-height:1.7}
.matrix-card .badge{align-self:flex-start}

/* ---------- 步骤 ---------- */
.steps{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;counter-reset:step}
.step{position:relative;padding:30px 26px 28px;overflow:hidden}
.step::before{
  counter-increment:step;content:counter(step,decimal-leading-zero);
  position:absolute;right:16px;top:6px;
  font-family:var(--mono);font-size:64px;line-height:1;font-weight:700;
  color:rgba(120,180,255,.10);
}
.step h3{font-size:18px;font-weight:700;margin-bottom:10px}
.step p{color:var(--text-2);font-size:15px;line-height:1.85}
.step .badge{margin-bottom:14px}

/* ---------- 排查清单 ---------- */
.check-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:14px}
.check-item{
  display:flex;gap:14px;align-items:flex-start;
  padding:18px 20px;border-radius:14px;
  border:1px solid var(--line);background:rgba(255,255,255,.03);
  transition:border-color .16s var(--ease),background .16s var(--ease);
}
.check-item:hover{border-color:var(--line-strong);background:rgba(255,255,255,.05)}
.check-icon{
  width:26px;height:26px;flex-shrink:0;border-radius:8px;display:grid;place-items:center;
  border:1px solid rgba(255,179,71,.35);background:rgba(255,179,71,.10);color:var(--warn);
  font-size:13px;font-weight:700;font-family:var(--mono);
}
.check-item h4{font-size:15.5px;font-weight:600;margin-bottom:4px}
.check-item p{font-size:14px;color:var(--text-3);line-height:1.75}

/* ---------- FAQ ---------- */
.faq{display:grid;grid-template-columns:repeat(2,1fr);gap:16px;align-items:start}
.faq-item{
  border:1px solid var(--line);border-radius:14px;background:rgba(255,255,255,.035);
  transition:border-color .16s var(--ease),background .16s var(--ease);
  overflow:hidden;
}
.faq-item[open]{border-color:var(--line-strong);background:rgba(255,255,255,.055)}
.faq-item summary{
  list-style:none;cursor:pointer;
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:18px 20px;font-size:17px;font-weight:600;line-height:1.5;
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary:hover{color:#fff}
.faq-mark{
  position:relative;width:20px;height:20px;flex-shrink:0;
  transition:transform .24s var(--ease);
}
.faq-mark::before,.faq-mark::after{
  content:"";position:absolute;left:50%;top:50%;background:var(--primary);border-radius:2px;
  transform:translate(-50%,-50%);
}
.faq-mark::before{width:14px;height:1.6px}
.faq-mark::after{width:1.6px;height:14px}
.faq-item[open] .faq-mark{transform:rotate(45deg)}
.faq-item[open] .faq-mark::before,.faq-item[open] .faq-mark::after{background:var(--action)}
.faq-body{padding:0 20px 20px;color:var(--text-2);font-size:15px;line-height:1.85}

/* ---------- CTA ---------- */
.cta-band{
  position:relative;overflow:hidden;
  border:1px solid var(--line-strong);border-radius:24px;
  padding:52px 48px;
  background:rgba(17,26,46,.7);
  box-shadow:var(--shadow);
  display:grid;grid-template-columns:1.1fr .9fr;gap:40px;align-items:center;
}
.cta-band::before{
  content:"";position:absolute;inset:0;z-index:0;pointer-events:none;
  background:radial-gradient(600px 260px at 82% 12%,rgba(43,232,166,.14),transparent 70%),
             radial-gradient(520px 240px at 6% 90%,rgba(138,107,255,.14),transparent 70%);
}
.cta-band > *{position:relative;z-index:1}
.cta-band h2{font-size:30px;line-height:1.3;font-weight:800;margin-bottom:14px}
.cta-band p{color:var(--text-2);font-size:16px;line-height:1.85;max-width:52ch}
.cta-points{display:flex;flex-direction:column;gap:12px;margin-top:22px}
.cta-points li{display:flex;align-items:center;gap:10px;font-size:14.5px;color:var(--text-2)}
.cta-points li::before{
  content:"✓";display:grid;place-items:center;width:20px;height:20px;flex-shrink:0;
  border-radius:6px;background:rgba(43,232,166,.14);color:var(--action);
  font-size:12px;font-weight:700;
}
.cta-actions{display:flex;flex-direction:column;gap:14px;align-items:flex-start}
.cta-note{font-size:13px;color:var(--text-3)}
.mini-banner{
  border-top:1px solid var(--line);border-bottom:1px solid var(--line);
  background:linear-gradient(90deg,rgba(55,194,255,.06),rgba(43,232,166,.05),transparent);
  padding:26px 0;
}
.mini-banner .container{display:flex;align-items:center;justify-content:space-between;gap:24px;flex-wrap:wrap}
.mini-banner p{font-size:16px;color:var(--text-1);font-weight:600}
.mini-banner p span{color:var(--text-3);font-weight:400;font-size:14px;margin-left:10px}

/* ---------- 页脚 ---------- */
.site-footer{
  position:relative;overflow:hidden;
  border-top:1px solid var(--line);
  padding-top:72px;margin-top:0;
  background:var(--bg-0);
}
.site-footer::before{
  content:"";position:absolute;left:0;right:0;top:0;height:220px;pointer-events:none;
  background:radial-gradient(720px 220px at 50% 0%,rgba(55,194,255,.08),transparent 72%);
}
.site-footer .container{position:relative;z-index:1}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:40px;padding-bottom:52px}
.footer-brand .brand{margin-bottom:18px}
.footer-desc{color:var(--text-3);font-size:14px;line-height:1.85;max-width:32ch}
.footer-col h3{font-size:14px;font-weight:700;color:var(--text-1);margin-bottom:18px;letter-spacing:.02em}
.footer-links{display:flex;flex-direction:column;gap:12px}
.footer-links a{color:var(--text-3);font-size:14px;transition:color .16s var(--ease),transform .16s var(--ease);display:inline-block}
.footer-links a:hover{color:var(--text-1);transform:translateX(2px)}
.footer-compliance{color:var(--text-3);font-size:13.5px;line-height:1.9}
.footer-compliance strong{display:block;color:var(--text-2);font-size:13px;font-weight:600;margin-bottom:2px}
.footer-bottom{
  border-top:1px solid var(--line);
  padding:22px 0 30px;
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13px;color:var(--text-3);
}
.footer-bottom .domain{font-family:var(--mono);letter-spacing:.06em;color:var(--text-3)}

/* ---------- 入场动效 ---------- */
.fade-up{opacity:0;transform:translateY(8px);animation:fadeUp .36s var(--ease) forwards}
.fade-up.d1{animation-delay:.06s}
.fade-up.d2{animation-delay:.12s}
.fade-up.d3{animation-delay:.18s}
@keyframes fadeUp{to{opacity:1;transform:translateY(0)}}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation:none!important;transition:none!important;scroll-behavior:auto!important}
  .fade-up{opacity:1;transform:none}
}

/* ---------- 响应式 ---------- */
@media (max-width:1279px){
  .page-title{font-size:40px}
  .matrix{grid-template-columns:repeat(3,1fr)}
}
@media (max-width:1100px){
  .main-nav{gap:16px}
  .command-search{width:190px}
}
@media (max-width:1023px){
  .main-nav,.command-search,.link-plain{display:none}
  .nav-toggle{display:flex}
  .nav-actions .btn{display:none}
  .nav-inner{height:68px}
  .section{padding:72px 0}
  .page-head{padding:40px 0 56px}
  .page-head-grid{grid-template-columns:1fr;gap:32px}
  .page-title{font-size:34px;max-width:none}
  .device-split{grid-template-columns:1fr}
  .matrix{grid-template-columns:repeat(2,1fr)}
  .steps{grid-template-columns:1fr}
  .cta-band{grid-template-columns:1fr;padding:36px 28px;gap:28px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
}
@media (max-width:767px){
  body{font-size:16px}
  .container{padding:0 18px}
  .section{padding:48px 0}
  .section-title{font-size:24px}
  .section-head{margin-bottom:28px}
  .page-title{font-size:30px;line-height:1.28}
  .page-lead{font-size:15.5px}
  .page-actions{flex-direction:column;align-items:stretch}
  .page-actions .btn{width:100%}
  .check-grid{grid-template-columns:1fr}
  .faq{grid-template-columns:1fr}
  .faq-item summary{font-size:15.5px;padding:16px}
  .matrix{grid-template-columns:1fr}
  .cta-band h2{font-size:24px}
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .footer-bottom{flex-direction:column;align-items:flex-start;gap:8px}
  .mini-banner .container{flex-direction:column;align-items:flex-start}
  .mini-banner .btn{width:100%}
}
@media (max-width:480px){
  .page-title{font-size:26px}
  .split-body{padding:20px 18px 22px}
  .split-body h3{font-size:17.5px}
  .step{padding:24px 20px}
  .cta-band{padding:28px 20px;border-radius:18px}
  .head-figure{aspect-ratio:4/3}
}

/* roulang page: category5 */
:root{
  --bg-0:#05070F;
  --bg-1:#0A1020;
  --bg-2:#111A2E;
  --line:rgba(120,180,255,.16);
  --line-strong:rgba(120,180,255,.32);
  --text-1:#E9F1FF;
  --text-2:#A6B6D0;
  --text-3:#6F7F9B;
  --primary:#37C2FF;
  --primary-2:#8A6BFF;
  --action:#2BE8A6;
  --warn:#FFB347;
  --danger:#FF6B6B;
  --radius-card:18px;
  --radius-btn:12px;
  --radius-img:14px;
  --radius-badge:6px;
  --shadow-card:0 24px 60px -28px rgba(0,0,0,.85), inset 0 1px 0 rgba(255,255,255,.07);
  --font-cn:"PingFang SC","HarmonyOS Sans SC","Source Han Sans SC","Microsoft YaHei",sans-serif;
  --font-num:"Space Grotesk","Inter",var(--font-cn);
  --ease:cubic-bezier(.22,.61,.36,1);
}
*,*::before,*::after{box-sizing:border-box;}
html{scroll-behavior:smooth;scroll-padding-top:96px;-webkit-text-size-adjust:100%;}
body{
  margin:0;
  font-family:var(--font-cn);
  font-size:17px;
  line-height:1.8;
  color:var(--text-1);
  background:
    radial-gradient(900px 520px at 78% -12%, rgba(55,194,255,.10), transparent 62%),
    radial-gradient(680px 420px at 6% 4%, rgba(138,107,255,.07), transparent 60%),
    var(--bg-0);
  min-height:100vh;
}
img{max-width:100%;display:block;object-fit:cover;}
a{color:var(--primary);text-decoration:none;transition:color .16s var(--ease);}
a:hover{color:#7AD8FF;}
button{font-family:inherit;}
h1,h2,h3,h4{margin:0;line-height:1.25;letter-spacing:0;font-weight:700;}
p{margin:0 0 1em;}
ul,ol{margin:0 0 1em;padding-left:1.25em;}
li{margin:.35em 0;}
:focus-visible{outline:2px solid rgba(43,232,166,.75);outline-offset:2px;border-radius:6px;}
::selection{background:rgba(43,232,166,.28);color:var(--text-1);}
::-webkit-scrollbar{width:10px;height:10px;}
::-webkit-scrollbar-track{background:var(--bg-1);}
::-webkit-scrollbar-thumb{background:rgba(120,180,255,.22);border-radius:8px;}
::-webkit-scrollbar-thumb:hover{background:rgba(120,180,255,.34);}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px;}
.section{padding:96px 0;}
.section-tight{padding:64px 0;}
.section-alt{background:linear-gradient(180deg,rgba(17,26,46,.72),rgba(10,16,32,.5));border-top:1px solid var(--line);border-bottom:1px solid var(--line);}
.section-head{max-width:720px;margin-bottom:40px;}
.section-head h2{font-size:30px;margin-bottom:12px;}
.section-head p{color:var(--text-2);font-size:16px;margin:0;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-family:var(--font-num);font-size:12px;letter-spacing:.06em;
  color:var(--primary);text-transform:uppercase;
  padding:5px 12px;border-radius:999px;
  border:1px solid rgba(55,194,255,.3);
  background:rgba(55,194,255,.08);
  margin-bottom:18px;
}
.eyebrow::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--action);box-shadow:0 0 8px rgba(43,232,166,.9);}

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(5,7,15,.55);
  backdrop-filter:blur(16px) saturate(130%);
  -webkit-backdrop-filter:blur(16px) saturate(130%);
  border-bottom:1px solid transparent;
  transition:background .24s var(--ease),border-color .24s var(--ease);
}
.site-header.is-scrolled{background:rgba(5,7,15,.9);border-bottom-color:var(--line);}
.header-inner{display:flex;align-items:center;gap:20px;min-height:72px;}
.brand{display:inline-flex;align-items:center;gap:10px;flex-shrink:0;color:var(--text-1);}
.brand:hover{color:var(--text-1);}
.brand-mark{
  width:30px;height:30px;flex:0 0 30px;display:grid;place-items:center;
  border-radius:9px;border:1px solid var(--line-strong);
  background:rgba(55,194,255,.1);
  box-shadow:0 0 16px -4px rgba(55,194,255,.6), inset 0 0 12px rgba(55,194,255,.18);
}
.brand-mark svg{width:18px;height:18px;fill:none;stroke:var(--primary);stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round;}
.brand-text{display:flex;flex-direction:column;line-height:1.15;}
.brand-text strong{font-size:16px;font-weight:700;}
.brand-text span{font-size:11px;color:var(--text-3);letter-spacing:.06em;font-family:var(--font-num);}
.main-nav{display:flex;align-items:center;gap:2px;flex-wrap:nowrap;}
.nav-link{
  position:relative;display:inline-block;
  padding:9px 12px;border-radius:10px;
  font-size:15px;color:var(--text-2);
  transition:color .16s var(--ease),background .16s var(--ease);
  white-space:nowrap;
}
.nav-link::after{
  content:"";position:absolute;left:12px;right:12px;bottom:3px;height:2px;border-radius:2px;
  background:var(--primary);transform:scaleX(0);transform-origin:left;
  transition:transform .24s var(--ease);
}
.nav-link:hover{color:var(--text-1);background:rgba(255,255,255,.045);}
.nav-link:hover::after,.nav-link.active::after{transform:scaleX(1);}
.nav-link.active{color:var(--text-1);}
.header-actions{display:flex;align-items:center;gap:12px;margin-left:auto;}
.cmd-search{
  display:flex;align-items:center;gap:8px;
  width:240px;height:40px;padding:0 10px 0 12px;
  border-radius:10px;border:1px solid var(--line);
  background:rgba(255,255,255,.045);
  transition:border-color .16s var(--ease),box-shadow .16s var(--ease);
}
.cmd-search svg{width:15px;height:15px;flex:0 0 15px;fill:none;stroke:var(--text-3);stroke-width:1.8;stroke-linecap:round;}
.cmd-search input{
  flex:1;min-width:0;border:0;background:none;color:var(--text-1);
  font-size:13.5px;font-family:inherit;outline:none;
}
.cmd-search input::placeholder{color:var(--text-3);}
.cmd-search:focus-within{border-color:var(--primary);box-shadow:0 0 0 8px rgba(55,194,255,.08);}
.kbd{
  font-family:var(--font-num);font-size:11px;letter-spacing:.04em;
  color:var(--text-2);padding:2px 6px;border-radius:6px;
  border:1px solid var(--line-strong);background:rgba(255,255,255,.04);
  flex-shrink:0;
}
.link-login{font-size:15px;color:var(--text-2);padding:8px 6px;white-space:nowrap;}
.link-login:hover{color:var(--text-1);}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:46px;padding:0 22px;border-radius:var(--radius-btn);
  font-size:15px;font-weight:600;letter-spacing:0;
  border:1px solid transparent;cursor:pointer;
  transition:transform .16s var(--ease),box-shadow .24s var(--ease),background .16s var(--ease),border-color .16s var(--ease),color .16s var(--ease);
  text-align:center;
}
.btn-sm{height:40px;padding:0 16px;font-size:14px;}
.btn-primary{
  background:var(--action);color:#04120C;
  box-shadow:0 0 0 1px rgba(43,232,166,.45),0 10px 30px -10px rgba(43,232,166,.55);
}
.btn-primary:hover{
  color:#04120C;background:#43F0B4;transform:translateY(-1px);
  box-shadow:0 0 0 1px rgba(43,232,166,.55),0 14px 40px -10px rgba(43,232,166,.7);
}
.btn-primary:active{transform:translateY(0);box-shadow:0 0 0 1px rgba(43,232,166,.5),0 6px 18px -10px rgba(43,232,166,.6);}
.btn-ghost{
  background:rgba(255,255,255,.045);color:var(--text-1);
  border-color:var(--line-strong);
  backdrop-filter:blur(10px);
}
.btn-ghost:hover{color:var(--text-1);border-color:var(--primary);background:rgba(55,194,255,.1);transform:translateY(-1px);}
.btn-ghost:active{transform:translateY(0);}
.btn-block{width:100%;}

/* ---------- page top ---------- */
.page-top{position:relative;overflow:hidden;padding:28px 0 64px;border-bottom:1px solid var(--line);}
.page-top::before{
  content:"";position:absolute;inset:0;
  background-image:url("/assets/images/backpic/back-1.png");
  background-size:cover;background-position:center;
  opacity:.16;
}
.page-top::after{
  content:"";position:absolute;inset:0;
  background:
    linear-gradient(180deg,rgba(5,7,15,.55),var(--bg-0) 88%),
    linear-gradient(90deg,rgba(120,180,255,.045) 1px,transparent 1px),
    linear-gradient(0deg,rgba(120,180,255,.045) 1px,transparent 1px);
  background-size:auto,24px 24px,24px 24px;
}
.page-top .container{position:relative;z-index:2;}
.breadcrumb{margin-bottom:28px;}
.breadcrumb ol{
  list-style:none;display:flex;flex-wrap:wrap;align-items:center;gap:8px;
  padding:0;margin:0;font-size:13.5px;color:var(--text-3);
}
.breadcrumb li{display:flex;align-items:center;gap:8px;margin:0;}
.breadcrumb li+li::before{content:"/";color:var(--text-3);opacity:.6;}
.breadcrumb a{color:var(--text-2);}
.breadcrumb a:hover{color:var(--primary);}
.breadcrumb li[aria-current="page"]{color:var(--text-1);}

.cat-hero{display:grid;grid-template-columns:minmax(0,1.25fr) minmax(0,.85fr);gap:48px;align-items:center;}
.cat-hero h1{font-size:44px;font-weight:800;margin-bottom:18px;}
.cat-hero .lead{font-size:17px;color:var(--text-2);max-width:620px;margin-bottom:26px;}
.cat-hero-actions{display:flex;flex-wrap:wrap;gap:12px;}
.cat-hero-figure{
  position:relative;margin:0;border-radius:var(--radius-card);overflow:hidden;
  border:1px solid var(--line);box-shadow:var(--shadow-card);
  aspect-ratio:16/11;
}
.cat-hero-figure img{width:100%;height:100%;}
.cat-hero-figure::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(200deg,rgba(55,194,255,.16),transparent 55%,rgba(5,7,15,.6));
}
.stat-row{
  display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px;
  margin-top:48px;
}
.stat-item{
  border-radius:14px;border:1px solid var(--line);
  background:rgba(255,255,255,.04);
  padding:16px 18px;
  backdrop-filter:blur(12px);
}
.stat-item dt{font-size:12.5px;color:var(--text-3);letter-spacing:.06em;font-family:var(--font-num);text-transform:uppercase;margin-bottom:6px;}
.stat-item dd{margin:0;font-size:15.5px;color:var(--text-1);font-weight:600;}

/* ---------- help layout ---------- */
.help-layout{display:grid;grid-template-columns:264px minmax(0,1fr);gap:44px;align-items:start;}
.anchor-nav{position:sticky;top:96px;}
.anchor-title{
  font-family:var(--font-num);font-size:12px;letter-spacing:.08em;text-transform:uppercase;
  color:var(--text-3);margin:0 0 12px;padding-left:12px;
}
.anchor-link{
  display:block;padding:10px 14px;border-radius:0 10px 10px 0;
  border-left:2px solid transparent;
  color:var(--text-2);font-size:15px;
  transition:background .16s var(--ease),color .16s var(--ease),border-color .16s var(--ease),padding-left .16s var(--ease);
}
.anchor-link:hover{background:rgba(255,255,255,.05);color:var(--text-1);padding-left:18px;}
.anchor-link.active{
  border-left-color:var(--action);color:var(--text-1);
  background:rgba(43,232,166,.08);font-weight:600;
}
.anchor-card{
  margin-top:22px;padding:20px;border-radius:16px;
  border:1px solid var(--line);background:rgba(255,255,255,.045);
  box-shadow:var(--shadow-card);
}
.anchor-card p{font-size:14px;color:var(--text-2);margin-bottom:14px;}
.anchor-card .btn{height:40px;font-size:14px;}

.faq-group{margin-bottom:48px;}
.faq-group:last-child{margin-bottom:0;}
.group-head{margin-bottom:20px;padding-left:14px;border-left:2px solid var(--primary);}
.group-head h2{font-size:24px;margin-bottom:8px;}
.group-head p{font-size:14.5px;color:var(--text-3);margin:0;}
.faq-list{display:flex;flex-direction:column;gap:12px;}
.faq-item{
  border-radius:var(--radius-card);
  border:1px solid var(--line);
  background:rgba(255,255,255,.045);
  backdrop-filter:blur(14px) saturate(140%);
  -webkit-backdrop-filter:blur(14px) saturate(140%);
  box-shadow:var(--shadow-card);
  transition:border-color .16s var(--ease),background .16s var(--ease),transform .16s var(--ease);
}
.faq-item:hover{border-color:var(--line-strong);transform:translateY(-1px);}
.faq-item.open{border-color:var(--line-strong);background:rgba(255,255,255,.062);}
.faq-title{margin:0;font-size:17px;font-weight:600;}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:18px 20px;background:none;border:0;color:var(--text-1);
  font-size:17px;font-weight:600;line-height:1.5;text-align:left;cursor:pointer;
  border-radius:var(--radius-card);
}
.faq-q:hover{color:#fff;}
.faq-icon{
  position:relative;flex:0 0 22px;width:22px;height:22px;
  border-radius:8px;border:1px solid var(--line-strong);
  transition:transform .24s var(--ease),border-color .16s var(--ease),background .16s var(--ease);
}
.faq-icon::before,.faq-icon::after{
  content:"";position:absolute;left:50%;top:50%;background:var(--primary);border-radius:2px;
  transform:translate(-50%,-50%);
}
.faq-icon::before{width:11px;height:1.6px;}
.faq-icon::after{width:1.6px;height:11px;transition:opacity .2s var(--ease);}
.faq-item.open .faq-icon{transform:rotate(45deg);border-color:rgba(43,232,166,.6);background:rgba(43,232,166,.12);}
.faq-item.open .faq-icon::before,.faq-item.open .faq-icon::after{background:var(--action);}
.faq-a{
  padding:0 20px 20px 20px;
  color:var(--text-2);font-size:15.5px;line-height:1.85;
}
.faq-a[hidden]{display:none;}
.faq-a p:last-child,.faq-a ul:last-child,.faq-a ol:last-child{margin-bottom:0;}
.faq-a ul{padding-left:1.1em;}
.faq-a li::marker{color:var(--primary);}
.faq-item.open .faq-a{animation:fadeUp .24s var(--ease);}
@keyframes fadeUp{from{opacity:0;transform:translateY(8px);}to{opacity:1;transform:translateY(0);}}

.callout{
  display:flex;gap:14px;
  border-radius:14px;border:1px solid rgba(255,179,71,.3);
  background:rgba(255,179,71,.07);
  padding:16px 18px;margin-top:20px;
  border-left:3px solid var(--warn);
  font-size:14.5px;color:var(--text-2);
}
.callout strong{color:var(--warn);font-weight:600;display:block;margin-bottom:4px;font-size:14px;}

/* ---------- feedback ---------- */
.support-grid{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1.05fr);gap:56px;align-items:start;}
.support-copy h2{font-size:30px;margin-bottom:16px;}
.support-copy p{color:var(--text-2);font-size:16px;}
.check-list{list-style:none;padding:0;margin:24px 0 0;}
.check-list li{
  position:relative;padding-left:26px;color:var(--text-2);font-size:15px;margin:.6em 0;
}
.check-list li::before{
  content:"";position:absolute;left:0;top:.62em;width:12px;height:12px;border-radius:4px;
  background:rgba(43,232,166,.16);border:1px solid rgba(43,232,166,.55);
  box-shadow:0 0 10px -2px rgba(43,232,166,.6);
}
.glass-card{
  border-radius:var(--radius-card);
  background:rgba(255,255,255,.045);
  backdrop-filter:blur(14px) saturate(140%);
  -webkit-backdrop-filter:blur(14px) saturate(140%);
  border:1px solid var(--line);
  box-shadow:var(--shadow-card);
  padding:28px;
}
@supports not (backdrop-filter:blur(14px)){
  .glass-card,.faq-item{background:rgba(17,26,46,.85);}
}
.support-form .form-row{display:grid;grid-template-columns:1fr 1fr;gap:16px;}
.field{margin-bottom:16px;}
.field label{display:block;font-size:14px;color:var(--text-2);margin-bottom:8px;}
.field .hint{font-size:12.5px;color:var(--text-3);margin-top:6px;}
.field input[type="text"],
.field input[type="tel"],
.field select,
.field textarea{
  width:100%;min-height:46px;padding:11px 14px;
  border-radius:12px;border:1px solid var(--line);
  background:rgba(10,16,32,.75);
  color:var(--text-1);font-size:15px;font-family:inherit;line-height:1.6;
  transition:border-color .16s var(--ease),box-shadow .16s var(--ease);
}
.field textarea{resize:vertical;min-height:112px;}
.field input::placeholder,.field textarea::placeholder{color:var(--text-3);}
.field input:focus,.field select:focus,.field textarea:focus{
  outline:none;border-color:var(--primary);box-shadow:0 0 0 6px rgba(55,194,255,.1);
}
.field select{appearance:none;background-image:linear-gradient(45deg,transparent 50%,var(--text-2) 50%),linear-gradient(135deg,var(--text-2) 50%,transparent 50%);background-position:calc(100% - 20px) 21px,calc(100% - 14px) 21px;background-size:6px 6px,6px 6px;background-repeat:no-repeat;padding-right:38px;}
.consent{display:flex;align-items:flex-start;gap:10px;font-size:13.5px;color:var(--text-2);margin:6px 0 20px;line-height:1.7;}
.consent input[type="checkbox"]{
  appearance:none;-webkit-appearance:none;
  width:18px;height:18px;flex:0 0 18px;margin-top:2px;
  border-radius:5px;border:1px solid var(--line-strong);
  background:rgba(10,16,32,.8);cursor:pointer;
  transition:background .16s var(--ease),border-color .16s var(--ease);
}
.consent input[type="checkbox"]:checked{
  background:var(--action) url("data:image/svg+xml;charset=utf-8,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16'%3E%3Cpath d='M3 8.4l3.2 3.2L13 4.8' fill='none' stroke='%2304120C' stroke-width='2.2' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E") center/13px no-repeat;
  border-color:var(--action);
}
.form-ok{
  margin-top:20px;padding:12px 16px;border-radius:12px;
  border:1px solid rgba(43,232,166,.45);background:rgba(43,232,166,.1);
  color:#8CF3CE;font-size:14px;
}
.form-ok[hidden]{display:none;}

/* ---------- cta band ---------- */
.cta-band{padding:56px 0;}
.cta-band-inner{
  display:flex;align-items:center;justify-content:space-between;gap:28px;
  padding:32px 36px;border-radius:22px;
  border:1px solid var(--line-strong);
  background:
    radial-gradient(520px 200px at 88% 0%,rgba(43,232,166,.14),transparent 70%),
    rgba(255,255,255,.045);
  backdrop-filter:blur(14px);
  box-shadow:var(--shadow-card);
}
.cta-band-inner h2{font-size:24px;margin-bottom:8px;}
.cta-band-inner p{margin:0;color:var(--text-2);font-size:15px;}

/* ---------- footer ---------- */
.site-footer{
  position:relative;
  border-top:1px solid var(--line);
  background:linear-gradient(180deg,rgba(10,16,32,.9),rgba(5,7,15,1));
  padding:64px 0 0;
  margin-top:24px;
}
.site-footer::before{
  content:"";position:absolute;left:0;right:0;top:0;height:120px;
  background:linear-gradient(180deg,rgba(55,194,255,.08),transparent);
  pointer-events:none;
}
.footer-grid{
  position:relative;
  display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:40px;
  padding-bottom:44px;
}
.footer-brand .brand{margin-bottom:16px;}
.footer-desc{font-size:14px;color:var(--text-3);line-height:1.85;max-width:320px;}
.footer-col h3{
  font-size:13px;font-family:var(--font-num);letter-spacing:.08em;text-transform:uppercase;
  color:var(--text-3);margin-bottom:16px;font-weight:600;
}
.footer-links{display:flex;flex-direction:column;gap:10px;}
.footer-links a{
  font-size:14.5px;color:var(--text-2);width:fit-content;
  transition:color .16s var(--ease),transform .16s var(--ease);
}
.footer-links a:hover{color:var(--text-1);transform:translateX(2px);}
.footer-compliance{font-size:13.5px;color:var(--text-3);line-height:1.85;}
.footer-compliance strong{display:block;color:var(--text-2);font-size:13px;margin-bottom:4px;font-weight:600;}
.footer-bottom{
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  border-top:1px solid var(--line);
  padding:20px 0 28px;
  font-size:13px;color:var(--text-3);
}
.footer-bottom .domain{font-family:var(--font-num);letter-spacing:.06em;color:var(--text-2);}

/* ---------- drawer ---------- */
.nav-toggle{
  display:none;width:42px;height:42px;flex:0 0 42px;
  border-radius:11px;border:1px solid var(--line-strong);
  background:rgba(255,255,255,.045);cursor:pointer;
  padding:0;place-items:center;
  transition:border-color .16s var(--ease),background .16s var(--ease);
}
.nav-toggle:hover{border-color:var(--primary);background:rgba(55,194,255,.1);}
.nav-toggle span{display:block;width:17px;height:1.6px;background:var(--text-1);border-radius:2px;margin:3.5px auto;transition:transform .24s var(--ease),opacity .2s var(--ease);}
.drawer-backdrop{
  position:fixed;inset:0;z-index:80;
  background:rgba(3,5,10,.66);backdrop-filter:blur(2px);
  opacity:0;pointer-events:none;transition:opacity .24s var(--ease);
}
.drawer-backdrop.show{opacity:1;pointer-events:auto;}
.mobile-drawer{
  position:fixed;top:0;right:0;bottom:0;z-index:90;
  width:min(340px,86vw);
  padding:20px 20px 32px;
  background:rgba(8,13,26,.98);
  border-left:1px solid var(--line-strong);
  transform:translateX(102%);
  transition:transform .28s var(--ease);
  overflow-y:auto;
}
.mobile-drawer.open{transform:translateX(0);}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:20px;}
.drawer-title{font-size:14px;letter-spacing:.08em;text-transform:uppercase;color:var(--text-3);font-family:var(--font-num);}
.drawer-close{
  width:36px;height:36px;border-radius:10px;border:1px solid var(--line-strong);
  background:rgba(255,255,255,.05);color:var(--text-1);font-size:20px;line-height:1;cursor:pointer;
}
.drawer-close:hover{border-color:var(--primary);}
.drawer-search{margin-bottom:20px;}
.drawer-search input{
  width:100%;height:44px;padding:0 14px;border-radius:12px;
  border:1px solid var(--line);background:rgba(10,16,32,.9);
  color:var(--text-1);font-size:14.5px;font-family:inherit;outline:none;
}
.drawer-search input:focus{border-color:var(--primary);box-shadow:0 0 0 6px rgba(55,194,255,.1);}
.drawer-nav{display:flex;flex-direction:column;gap:4px;}
.drawer-nav a{
  padding:12px 14px;border-radius:12px;color:var(--text-2);font-size:15.5px;
  border:1px solid transparent;
  transition:background .16s var(--ease),color .16s var(--ease),border-color .16s var(--ease);
}
.drawer-nav a:hover{background:rgba(255,255,255,.05);color:var(--text-1);}
.drawer-nav a.active{color:var(--text-1);background:rgba(43,232,166,.1);border-color:rgba(43,232,166,.35);}

/* ---------- responsive ---------- */
@media (max-width:1279px){
  .link-login{display:none;}
  .cmd-search{width:200px;}
  .cat-hero{gap:36px;}
  .cat-hero h1{font-size:38px;}
}
@media (max-width:1100px){
  .main-nav{display:none;}
  .nav-toggle{display:grid;}
  .help-layout{grid-template-columns:220px minmax(0,1fr);gap:32px;}
}
@media (max-width:1023px){
  .section{padding:72px 0;}
  .cmd-search{display:none;}
  .cat-hero{grid-template-columns:1fr;}
  .cat-hero h1{font-size:34px;}
  .cat-hero-figure{max-width:560px;}
  .stat-row{grid-template-columns:repeat(3,minmax(0,1fr));gap:12px;}
  .support-grid{grid-template-columns:1fr;gap:32px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
  .cta-band-inner{flex-direction:column;align-items:flex-start;padding:28px;}
  .help-layout{grid-template-columns:1fr;gap:24px;}
  .anchor-nav{
    position:sticky;top:74px;z-index:30;
    display:flex;gap:8px;overflow-x:auto;
    padding:10px 0;margin:0 -24px;padding-left:24px;padding-right:24px;
    background:rgba(5,7,15,.92);
    backdrop-filter:blur(12px);
    border-bottom:1px solid var(--line);
    -webkit-overflow-scrolling:touch;
  }
  .anchor-title{display:none;}
  .anchor-link{
    flex:0 0 auto;border-left:0;border-radius:999px;
    border:1px solid var(--line);padding:8px 14px;font-size:14px;
    background:rgba(255,255,255,.04);
  }
  .anchor-link:hover{padding-left:14px;transform:none;}
  .anchor-link.active{border-color:rgba(43,232,166,.5);background:rgba(43,232,166,.12);}
  .anchor-card{display:none;}
  .anchor-nav::-webkit-scrollbar{height:0;}
}
@media (max-width:767px){
  body{font-size:16px;}
  .container{padding:0 18px;}
  .section{padding:48px 0;}
  .section-head h2{font-size:24px;}
  .cat-hero h1{font-size:30px;}
  .cat-hero .lead{font-size:16px;}
  .page-top{padding:20px 0 44px;}
  .stat-row{grid-template-columns:1fr;margin-top:32px;}
  .cat-hero-actions .btn{flex:1 1 100%;}
  .group-head h2{font-size:20px;}
  .faq-q{font-size:16px;padding:16px;}
  .faq-a{padding:0 16px 18px 16px;font-size:15px;}
  .support-form .form-row{grid-template-columns:1fr;}
  .glass-card{padding:22px;}
  .support-copy h2{font-size:24px;}
  .footer-grid{grid-template-columns:1fr;gap:28px;padding-bottom:32px;}
  .footer-desc{max-width:none;}
  .footer-bottom{flex-direction:column;align-items:flex-start;gap:8px;}
  .cta-band-inner h2{font-size:20px;}
  .cta-band-inner .btn{width:100%;}
}
@media (max-width:480px){
  .btn{width:100%;}
  .header-actions .btn-primary.btn-sm{width:auto;}
  .cat-hero h1{font-size:27px;}
  .brand-text strong{font-size:15px;}
  .breadcrumb ol{font-size:12.5px;}
  .faq-q{font-size:15.5px;}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation-duration:.001ms!important;animation-iteration-count:1!important;transition-duration:.001ms!important;scroll-behavior:auto!important;}
  html{scroll-behavior:auto;}
}

/* roulang page: category4 */
:root{
  --bg-0:#05070F;
  --bg-1:#0A1020;
  --bg-2:#111A2E;
  --line:rgba(120,180,255,0.16);
  --line-strong:rgba(120,180,255,0.32);
  --text-1:#E9F1FF;
  --text-2:#A6B6D0;
  --text-3:#6F7F9B;
  --primary:#37C2FF;
  --primary-2:#8A6BFF;
  --action:#2BE8A6;
  --warn:#FFB347;
  --danger:#FF6B6B;
  --radius-card:18px;
  --radius-btn:12px;
  --radius-img:14px;
  --radius-badge:6px;
  --shadow-card:0 24px 60px -28px rgba(0,0,0,0.85), inset 0 1px 0 rgba(255,255,255,0.07);
  --font-cn:"PingFang SC","HarmonyOS Sans SC","Source Han Sans SC","Microsoft YaHei",sans-serif;
  --font-num:"Space Grotesk",Inter,var(--font-cn);
  --ease:cubic-bezier(.22,.61,.36,1);
}

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

html{scroll-behavior:smooth;}

body{
  margin:0;
  font-family:var(--font-cn);
  font-size:17px;
  line-height:1.8;
  color:var(--text-1);
  background-color:var(--bg-0);
  background-image:
    radial-gradient(900px 520px at 50% -8%, rgba(55,194,255,0.10), transparent 70%),
    linear-gradient(180deg,#05070F 0%,#070B16 52%,#05070F 100%);
  -webkit-font-smoothing:antialiased;
  -moz-osx-font-smoothing:grayscale;
}

h1,h2,h3,h4{margin:0;line-height:1.25;font-weight:700;letter-spacing:0;}
p{margin:0;}
a{color:var(--primary);text-decoration:none;}
img{max-width:100%;display:block;}
button{font-family:inherit;}
ul,ol{margin:0;padding:0;list-style:none;}

a:focus-visible,
button:focus-visible,
input:focus-visible,
select:focus-visible,
textarea:focus-visible{
  outline:2px solid rgba(43,232,166,0.6);
  outline-offset:2px;
  border-radius:8px;
}

::-webkit-scrollbar{width:10px;height:10px;}
::-webkit-scrollbar-track{background:var(--bg-1);}
::-webkit-scrollbar-thumb{background:rgba(120,180,255,0.22);border-radius:6px;}
::-webkit-scrollbar-thumb:hover{background:rgba(120,180,255,0.34);}

.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px;}

/* ---------- Header ---------- */
.site-header{
  position:sticky;
  top:0;
  z-index:80;
  border-bottom:1px solid transparent;
  transition:background .24s var(--ease),border-color .24s var(--ease),backdrop-filter .24s var(--ease);
}
.site-header.scrolled{
  background:rgba(5,7,15,0.78);
  backdrop-filter:blur(16px) saturate(140%);
  -webkit-backdrop-filter:blur(16px) saturate(140%);
  border-bottom-color:var(--line);
}
.header-inner{
  display:flex;
  align-items:center;
  gap:20px;
  height:76px;
}

.brand{
  display:inline-flex;
  align-items:center;
  gap:10px;
  flex:none;
  color:var(--text-1);
  text-decoration:none;
}
.brand-mark{
  width:34px;
  height:34px;
  display:grid;
  place-items:center;
  border-radius:10px;
  border:1px solid var(--line-strong);
  background:rgba(55,194,255,0.10);
  box-shadow:0 0 20px -8px rgba(55,194,255,0.85);
}
.brand-mark svg{
  width:18px;height:18px;
  fill:none;
  stroke:var(--primary);
  stroke-width:1.8;
  stroke-linecap:round;
  stroke-linejoin:round;
}
.brand-text{display:flex;flex-direction:column;line-height:1.15;}
.brand-text strong{font-size:16px;font-weight:800;}
.brand-text span{font-size:11px;color:var(--text-3);letter-spacing:0.06em;}

.main-nav{
  display:flex;
  align-items:center;
  gap:2px;
  margin-left:6px;
}
.nav-link{
  position:relative;
  display:inline-block;
  padding:8px 12px;
  font-size:15px;
  color:var(--text-2);
  border-radius:8px;
  transition:color .16s var(--ease);
  white-space:nowrap;
}
.nav-link::after{
  content:"";
  position:absolute;
  left:12px;right:12px;bottom:2px;
  height:2px;
  border-radius:2px;
  background:var(--primary);
  transform:scaleX(0);
  transform-origin:left;
  transition:transform .24s var(--ease);
}
.nav-link:hover{color:var(--text-1);}
.nav-link:hover::after,
.nav-link.active::after{transform:scaleX(1);}
.nav-link.active{color:var(--text-1);}

.header-actions{
  margin-left:auto;
  display:flex;
  align-items:center;
  gap:12px;
}
.command-search{
  display:flex;
  align-items:center;
  gap:8px;
  width:240px;
  height:38px;
  padding:0 10px;
  border-radius:10px;
  border:1px solid var(--line);
  background:rgba(255,255,255,0.045);
  transition:border-color .16s var(--ease),box-shadow .24s var(--ease),background .16s var(--ease);
}
.command-search svg{
  width:15px;height:15px;flex:none;
  fill:none;stroke:var(--text-3);stroke-width:1.8;stroke-linecap:round;
}
.command-search input{
  flex:1;
  min-width:0;
  border:0;
  background:transparent;
  color:var(--text-1);
  font-size:13.5px;
  font-family:inherit;
  outline:none;
}
.command-search input::placeholder{color:var(--text-3);}
.command-search kbd{
  flex:none;
  font-family:var(--font-num);
  font-size:11px;
  letter-spacing:0.06em;
  color:var(--text-3);
  border:1px solid var(--line);
  border-radius:6px;
  padding:1px 5px;
  background:rgba(5,7,15,0.6);
}
.command-search:focus-within{
  border-color:var(--primary);
  background:rgba(55,194,255,0.08);
  box-shadow:0 0 0 4px rgba(55,194,255,0.14);
}

.link-login{
  font-size:15px;
  color:var(--text-2);
  padding:6px 4px;
  transition:color .16s var(--ease);
}
.link-login:hover{color:var(--text-1);}

.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  height:46px;
  padding:0 24px;
  border:1px solid transparent;
  border-radius:var(--radius-btn);
  font-size:15px;
  font-weight:600;
  font-family:inherit;
  color:var(--text-1);
  cursor:pointer;
  text-decoration:none;
  transition:transform .16s var(--ease),box-shadow .24s var(--ease),background .16s var(--ease),border-color .16s var(--ease),color .16s var(--ease);
}
.btn-sm{height:38px;padding:0 16px;font-size:14px;border-radius:10px;}
.btn-primary{
  background:var(--action);
  color:#04120C;
  box-shadow:0 0 0 1px rgba(43,232,166,0.45), 0 10px 30px -10px rgba(43,232,166,0.55);
}
.btn-primary:hover{
  background:#3DF3B4;
  transform:translateY(-1px);
  box-shadow:0 0 0 1px rgba(43,232,166,0.55), 0 14px 40px -10px rgba(43,232,166,0.62);
}
.btn-primary:active{transform:translateY(0);}
.btn-ghost{
  background:rgba(255,255,255,0.045);
  border-color:var(--line-strong);
  color:var(--text-1);
}
.btn-ghost:hover{
  border-color:var(--primary);
  background:rgba(55,194,255,0.10);
  color:#fff;
  transform:translateY(-1px);
}
.btn-block{width:100%;}

.nav-toggle{
  display:none;
  width:40px;height:40px;
  align-items:center;justify-content:center;
  border-radius:10px;
  border:1px solid var(--line-strong);
  background:rgba(255,255,255,0.045);
  cursor:pointer;
}
.nav-toggle span{
  display:block;
  width:16px;height:1.8px;
  background:var(--text-1);
  border-radius:2px;
  position:relative;
  transition:background .16s var(--ease);
}
.nav-toggle span::before,
.nav-toggle span::after{
  content:"";
  position:absolute;left:0;
  width:16px;height:1.8px;
  background:var(--text-1);
  border-radius:2px;
  transition:transform .24s var(--ease);
}
.nav-toggle span::before{top:-5px;}
.nav-toggle span::after{top:5px;}

.drawer-mask{
  position:fixed;
  inset:0;
  z-index:110;
  background:rgba(3,6,12,0.66);
  opacity:0;
  pointer-events:none;
  transition:opacity .24s var(--ease);
}
.drawer-mask.is-open{opacity:1;pointer-events:auto;}
.drawer{
  position:fixed;
  top:0;right:0;bottom:0;
  z-index:120;
  width:min(340px,88vw);
  padding:22px;
  display:flex;
  flex-direction:column;
  gap:18px;
  overflow-y:auto;
  background:rgba(8,13,24,0.98);
  border-left:1px solid var(--line);
  backdrop-filter:blur(20px);
  transform:translateX(102%);
  transition:transform .24s var(--ease);
}
.drawer.is-open{transform:translateX(0);}
.drawer-head{display:flex;align-items:center;justify-content:space-between;gap:12px;}
.drawer-close{
  width:34px;height:34px;
  display:grid;place-items:center;
  border-radius:9px;
  border:1px solid var(--line);
  background:rgba(255,255,255,0.05);
  color:var(--text-1);
  font-size:16px;
  cursor:pointer;
}
.drawer .command-search{width:100%;}
.drawer-nav{display:flex;flex-direction:column;gap:4px;}
.drawer-nav a{
  padding:12px;
  border-radius:10px;
  border:1px solid transparent;
  color:var(--text-2);
  font-size:15px;
  transition:background .16s var(--ease),color .16s var(--ease),border-color .16s var(--ease);
}
.drawer-nav a:hover{background:rgba(255,255,255,0.05);color:var(--text-1);}
.drawer-nav a.active{
  color:var(--text-1);
  border-color:var(--line-strong);
  background:rgba(55,194,255,0.10);
}

/* ---------- Breadcrumb ---------- */
.breadcrumb-wrap{padding:22px 0 0;}
.breadcrumb ol{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:8px;
  font-size:13.5px;
  color:var(--text-3);
}
.breadcrumb li{display:inline-flex;align-items:center;gap:8px;}
.breadcrumb li+li::before{
  content:"";
  width:5px;height:5px;
  border-top:1px solid var(--text-3);
  border-right:1px solid var(--text-3);
  transform:rotate(45deg);
  display:inline-block;
}
.breadcrumb a{color:var(--text-2);transition:color .16s var(--ease);}
.breadcrumb a:hover{color:var(--primary);}
.breadcrumb li[aria-current="page"]{color:var(--text-1);}

/* ---------- Page hero ---------- */
.page-hero{
  position:relative;
  overflow:hidden;
  padding:56px 0 68px;
  margin-top:18px;
  border-bottom:1px solid var(--line);
}
.page-hero::before{
  content:"";
  position:absolute;
  inset:0;
  background:url("/assets/images/backpic/back-2.webp") center/cover no-repeat;
  opacity:0.30;
  filter:saturate(120%);
}
.page-hero::after{
  content:"";
  position:absolute;
  inset:0;
  background:
    linear-gradient(100deg,rgba(5,7,15,0.96) 0%,rgba(5,7,15,0.86) 46%,rgba(5,7,15,0.58) 100%),
    repeating-linear-gradient(0deg,transparent 0 23px,rgba(120,180,255,0.045) 23px 24px),
    repeating-linear-gradient(90deg,transparent 0 23px,rgba(120,180,255,0.045) 23px 24px);
}
.page-hero .container{position:relative;z-index:1;}
.hero-grid{
  display:grid;
  grid-template-columns:1.35fr 0.85fr;
  gap:48px;
  align-items:center;
}
.eyebrow{
  display:inline-flex;
  align-items:center;
  gap:8px;
  padding:5px 12px;
  margin-bottom:18px;
  border-radius:999px;
  border:1px solid rgba(138,107,255,0.4);
  background:rgba(138,107,255,0.12);
  color:#C3B4FF;
  font-size:12px;
  letter-spacing:0.06em;
}
.eyebrow::before{
  content:"";
  width:6px;height:6px;
  border-radius:50%;
  background:var(--primary-2);
  box-shadow:0 0 10px rgba(138,107,255,0.9);
}
.page-hero h1{
  font-size:44px;
  font-weight:800;
  line-height:1.22;
  margin-bottom:18px;
  letter-spacing:0;
}
.page-hero h1 em{
  font-style:normal;
  color:var(--primary);
}
.hero-lead{
  max-width:620px;
  font-size:16.5px;
  line-height:1.85;
  color:var(--text-2);
}
.hero-tags{
  display:flex;
  flex-wrap:wrap;
  gap:8px;
  margin-top:24px;
}
.tag{
  display:inline-flex;
  align-items:center;
  padding:4px 11px;
  border-radius:var(--radius-badge);
  border:1px solid var(--line);
  background:rgba(255,255,255,0.04);
  font-size:12px;
  letter-spacing:0.06em;
  color:var(--text-2);
}
.hero-side{
  padding:26px;
  border-radius:var(--radius-card);
  border:1px solid var(--line);
  background:rgba(17,26,46,0.72);
  box-shadow:var(--shadow-card);
  backdrop-filter:blur(14px) saturate(140%);
}
.hero-side h2{
  font-size:16px;
  color:var(--text-1);
  margin-bottom:16px;
  letter-spacing:0;
}
.stat-row{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:14px;
  padding:12px 0;
  border-bottom:1px solid var(--line);
}
.stat-row:last-of-type{border-bottom:0;}
.stat-label{font-size:13.5px;color:var(--text-3);}
.stat-value{
  font-family:var(--font-num);
  font-size:15px;
  letter-spacing:0.06em;
  color:var(--text-1);
}
.stat-value.is-action{color:var(--action);}
.hero-side .btn{margin-top:20px;}

/* ---------- Section basics ---------- */
.section{padding:96px 0;}
.section-alt{
  border-top:1px solid var(--line);
  border-bottom:1px solid var(--line);
  background:linear-gradient(180deg,rgba(55,194,255,0.05),transparent 65%);
}
.section-head{max-width:740px;margin-bottom:44px;}
.section-head h2{
  font-size:30px;
  font-weight:800;
  margin-bottom:14px;
}
.section-head p{
  font-size:16.5px;
  line-height:1.85;
  color:var(--text-2);
}
.section-head-row{
  display:flex;
  align-items:flex-end;
  justify-content:space-between;
  gap:24px;
  margin-bottom:44px;
  flex-wrap:wrap;
}
.section-head-row .section-head{margin-bottom:0;}

/* ---------- Event cards ---------- */
.event-grid{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:24px;
}
.event-card{
  position:relative;
  display:flex;
  flex-direction:column;
  gap:14px;
  padding:24px;
  border-radius:var(--radius-card);
  border:1px solid var(--line);
  background:rgba(255,255,255,0.045);
  box-shadow:var(--shadow-card);
  backdrop-filter:blur(14px) saturate(140%);
  transition:transform .16s var(--ease),border-color .16s var(--ease),background .16s var(--ease);
}
.event-card:hover{
  transform:translateY(-2px);
  border-color:var(--line-strong);
  background:rgba(255,255,255,0.07);
}
.event-top{
  display:flex;
  align-items:flex-start;
  justify-content:space-between;
  gap:12px;
}
.date-badge{
  display:inline-flex;
  flex-direction:column;
  align-items:center;
  gap:1px;
  min-width:58px;
  padding:7px 9px;
  border-radius:12px;
  border:1px solid rgba(55,194,255,0.35);
  background:rgba(55,194,255,0.12);
  line-height:1.15;
}
.date-badge b{
  font-family:var(--font-num);
  font-size:16px;
  font-weight:700;
  letter-spacing:0.06em;
  color:var(--primary);
}
.date-badge i{
  font-style:normal;
  font-size:11px;
  letter-spacing:0.06em;
  color:var(--text-3);
}
.status{
  display:inline-flex;
  align-items:center;
  gap:6px;
  padding:3px 10px;
  border-radius:999px;
  border:1px solid transparent;
  font-size:12px;
  letter-spacing:0.06em;
  white-space:nowrap;
}
.status::before{
  content:"";
  width:6px;height:6px;
  border-radius:50%;
  background:currentColor;
}
.status-open{color:var(--action);background:rgba(43,232,166,0.10);border-color:rgba(43,232,166,0.32);}
.status-soon{color:var(--warn);background:rgba(255,179,71,0.10);border-color:rgba(255,179,71,0.32);}
.status-done{color:var(--text-3);background:rgba(120,180,255,0.08);border-color:var(--line);}
.event-card h3{
  font-size:18px;
  font-weight:700;
  line-height:1.4;
}
.event-card p{
  font-size:14.5px;
  line-height:1.8;
  color:var(--text-2);
}
.event-meta{
  display:flex;
  flex-direction:column;
  gap:8px;
  padding-top:14px;
  margin-top:auto;
  border-top:1px solid var(--line);
}
.event-meta li{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:12px;
  font-size:13.5px;
  color:var(--text-3);
}
.event-meta li span{
  color:var(--text-2);
  text-align:right;
}
.event-link{
  display:inline-flex;
  align-items:center;
  gap:6px;
  font-size:14px;
  font-weight:600;
  color:var(--primary);
  transition:gap .16s var(--ease),color .16s var(--ease);
}
.event-link:hover{gap:10px;color:#7BD9FF;}

/* ---------- Steps ---------- */
.steps{
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:20px;
  counter-reset:step;
}
.step{
  position:relative;
  overflow:hidden;
  padding:26px 22px 22px;
  border-radius:var(--radius-card);
  border:1px solid var(--line);
  background:rgba(255,255,255,0.035);
  transition:border-color .16s var(--ease),transform .16s var(--ease);
}
.step:hover{border-color:var(--line-strong);transform:translateY(-2px);}
.step::before{
  content:counter(step,decimal-leading-zero);
  counter-increment:step;
  position:absolute;
  top:6px;right:16px;
  font-family:var(--font-num);
  font-size:52px;
  font-weight:700;
  line-height:1;
  color:rgba(120,180,255,0.10);
  pointer-events:none;
}
.step h3{font-size:17px;margin-bottom:10px;}
.step p{font-size:14.5px;line-height:1.8;color:var(--text-2);}

/* ---------- Split ---------- */
.split{
  display:grid;
  grid-template-columns:1.05fr 0.95fr;
  gap:48px;
  align-items:center;
}
.split-media{
  position:relative;
  border-radius:var(--radius-img);
  overflow:hidden;
  border:1px solid var(--line);
  aspect-ratio:16/11;
  background:rgba(17,26,46,0.85);
}
.split-media img{
  width:100%;height:100%;
  object-fit:cover;
  transition:transform .36s var(--ease);
}
.split-media:hover img{transform:scale(1.03);}
.split-media::after{
  content:"";
  position:absolute;
  inset:0;
  background:linear-gradient(180deg,transparent 45%,rgba(5,7,15,0.55));
  pointer-events:none;
}
.check-list{display:flex;flex-direction:column;gap:14px;margin-top:26px;}
.check-list li{
  display:flex;
  gap:12px;
  align-items:flex-start;
  font-size:15.5px;
  line-height:1.8;
  color:var(--text-2);
}
.check-list li svg{
  flex:none;
  width:20px;height:20px;
  margin-top:4px;
  fill:none;
  stroke:var(--action);
  stroke-width:2;
  stroke-linecap:round;
  stroke-linejoin:round;
}
.check-list strong{color:var(--text-1);font-weight:600;}

/* ---------- Quote cards ---------- */
.quote-grid{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:24px;
}
.quote{
  display:flex;
  flex-direction:column;
  gap:18px;
  padding:26px;
  border-radius:var(--radius-card);
  border:1px solid var(--line);
  background:rgba(255,255,255,0.04);
  box-shadow:var(--shadow-card);
  transition:border-color .16s var(--ease),transform .16s var(--ease);
}
.quote:hover{border-color:var(--line-strong);transform:translateY(-2px);}
.quote p{
  font-size:15.5px;
  line-height:1.85;
  color:var(--text-2);
}
.quote-foot{
  display:flex;
  align-items:center;
  gap:12px;
  margin-top:auto;
  padding-top:16px;
  border-top:1px solid var(--line);
}
.avatar{
  width:38px;height:38px;
  flex:none;
  display:grid;
  place-items:center;
  border-radius:50%;
  border:1px solid var(--line-strong);
  background:rgba(138,107,255,0.14);
  color:#C3B4FF;
  font-size:14px;
  font-weight:700;
}
.quote-name{font-size:14px;color:var(--text-1);font-weight:600;}
.quote-role{font-size:12.5px;color:var(--text-3);}

/* ---------- FAQ ---------- */
.faq-list{display:grid;gap:14px;max-width:920px;}
.faq-item{
  border-radius:var(--radius-card);
  border:1px solid var(--line);
  background:rgba(255,255,255,0.04);
  overflow:hidden;
  transition:border-color .16s var(--ease),background .16s var(--ease);
}
.faq-item.is-open{
  border-color:var(--line-strong);
  background:rgba(255,255,255,0.06);
}
.faq-q{
  width:100%;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:18px;
  padding:18px 22px;
  border:0;
  background:transparent;
  color:var(--text-1);
  font-size:17px;
  font-weight:600;
  font-family:inherit;
  text-align:left;
  cursor:pointer;
}
.faq-icon{
  position:relative;
  flex:none;
  width:22px;height:22px;
  border-radius:50%;
  border:1px solid var(--line-strong);
  transition:transform .24s var(--ease),border-color .16s var(--ease);
}
.faq-icon::before,
.faq-icon::after{
  content:"";
  position:absolute;
  top:50%;left:50%;
  background:var(--text-1);
  border-radius:2px;
  transform:translate(-50%,-50%);
}
.faq-icon::before{width:9px;height:1.6px;}
.faq-icon::after{width:1.6px;height:9px;transition:opacity .16s var(--ease);}
.faq-item.is-open .faq-icon{transform:rotate(45deg);border-color:var(--action);}
.faq-item.is-open .faq-icon::before,
.faq-item.is-open .faq-icon::after{background:var(--action);}
.faq-a{
  max-height:0;
  overflow:hidden;
  transition:max-height .3s var(--ease);
}
.faq-a-inner{
  padding:0 22px 20px;
  font-size:15.5px;
  line-height:1.85;
  color:var(--text-2);
}

/* ---------- CTA / form ---------- */
.cta-section{
  padding:96px 0;
  border-top:1px solid var(--line);
  background:linear-gradient(180deg,rgba(55,194,255,0.055),transparent 60%);
}
.cta-grid{
  display:grid;
  grid-template-columns:1fr 0.85fr;
  gap:48px;
  align-items:start;
}
.cta-copy h2{font-size:30px;font-weight:800;margin-bottom:16px;}
.cta-copy > p{font-size:16.5px;line-height:1.85;color:var(--text-2);max-width:520px;}
.benefit-list{display:flex;flex-direction:column;gap:14px;margin-top:28px;}
.benefit-list li{
  display:flex;
  gap:12px;
  align-items:flex-start;
  font-size:15.5px;
  color:var(--text-2);
}
.benefit-list li span:first-child{
  flex:none;
  width:22px;height:22px;
  margin-top:4px;
  display:grid;
  place-items:center;
  border-radius:50%;
  border:1px solid rgba(43,232,166,0.4);
  background:rgba(43,232,166,0.12);
  color:var(--action);
  font-size:12px;
  font-weight:700;
}
.form-card{
  padding:28px;
  border-radius:var(--radius-card);
  border:1px solid var(--line);
  background:rgba(17,26,46,0.72);
  box-shadow:var(--shadow-card);
  backdrop-filter:blur(14px) saturate(140%);
}
.form-card h3{font-size:19px;margin-bottom:6px;}
.form-sub{font-size:13.5px;color:var(--text-3);margin-bottom:22px;}
.field{display:flex;flex-direction:column;gap:8px;margin-bottom:16px;}
.field label{font-size:14px;color:var(--text-2);}
.field input,
.field select{
  height:46px;
  padding:0 14px;
  border-radius:var(--radius-btn);
  border:1px solid var(--line);
  background:rgba(5,7,15,0.6);
  color:var(--text-1);
  font-size:15px;
  font-family:inherit;
  transition:border-color .16s var(--ease),box-shadow .24s var(--ease);
}
.field select{appearance:none;background-image:linear-gradient(45deg,transparent 50%,var(--text-3) 50%),linear-gradient(135deg,var(--text-3) 50%,transparent 50%);background-position:calc(100% - 20px) 21px,calc(100% - 15px) 21px;background-size:5px 5px,5px 5px;background-repeat:no-repeat;}
.field input::placeholder{color:var(--text-3);}
.field input:focus,
.field select:focus{
  outline:none;
  border-color:var(--primary);
  box-shadow:0 0 0 4px rgba(55,194,255,0.14);
}
.field.is-error input,
.field.is-error select{border-color:var(--danger);}
.field-error{
  display:none;
  font-size:13px;
  color:var(--danger);
}
.field.is-error .field-error{display:block;}
.check{
  display:flex;
  gap:10px;
  align-items:flex-start;
  font-size:13.5px;
  line-height:1.7;
  color:var(--text-2);
  margin:6px 0 20px;
}
.check input{
  appearance:none;
  -webkit-appearance:none;
  flex:none;
  width:18px;height:18px;
  margin-top:3px;
  border-radius:6px;
  border:1px solid var(--line-strong);
  background:rgba(5,7,15,0.6);
  position:relative;
  cursor:pointer;
  transition:background .16s var(--ease),border-color .16s var(--ease);
}
.check input:checked{background:var(--action);border-color:var(--action);}
.check input:checked::after{
  content:"";
  position:absolute;
  left:5px;top:1px;
  width:5px;height:9px;
  border:2px solid #04120C;
  border-top:0;
  border-left:0;
  transform:rotate(42deg);
}
.form-note{
  margin-top:16px;
  font-size:14px;
  color:var(--action);
  min-height:22px;
  opacity:0;
  transform:translateY(4px);
  transition:opacity .24s var(--ease),transform .24s var(--ease);
}
.form-note.show{opacity:1;transform:translateY(0);}
.form-hint{
  margin-top:8px;
  font-size:12.5px;
  color:var(--text-3);
}

/* ---------- Footer ---------- */
.site-footer{
  position:relative;
  padding:64px 0 0;
  border-top:1px solid var(--line);
  background:linear-gradient(180deg,rgba(10,16,32,0.92),#05070F 70%);
}
.site-footer::before{
  content:"";
  position:absolute;
  left:0;right:0;top:0;
  height:1px;
  background:linear-gradient(90deg,transparent,rgba(55,194,255,0.5),transparent);
}
.footer-grid{
  display:grid;
  grid-template-columns:1.4fr 1fr 1fr 1.2fr;
  gap:40px;
  padding-bottom:48px;
}
.footer-brand .brand{margin-bottom:16px;}
.footer-desc{
  font-size:14px;
  line-height:1.8;
  color:var(--text-3);
  max-width:300px;
}
.footer-col h3{
  font-size:14px;
  font-weight:700;
  color:var(--text-1);
  margin-bottom:16px;
}
.footer-links{display:flex;flex-direction:column;gap:10px;}
.footer-links a{
  font-size:14px;
  color:var(--text-2);
  transition:color .16s var(--ease),transform .16s var(--ease);
  display:inline-block;
}
.footer-links a:hover{color:var(--text-1);transform:translateX(2px);}
.footer-compliance{
  font-size:13px;
  line-height:1.9;
  color:var(--text-3);
}
.footer-compliance strong{
  display:block;
  font-size:13px;
  color:var(--text-2);
  font-weight:600;
}
.footer-bottom{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  flex-wrap:wrap;
  padding:20px 0;
  border-top:1px solid var(--line);
  font-size:13px;
  color:var(--text-3);
}
.footer-bottom .domain{
  font-family:var(--font-num);
  letter-spacing:0.06em;
  color:var(--text-2);
}

/* ---------- Motion ---------- */
.fade-up{animation:fadeUp .36s var(--ease) both;}
@keyframes fadeUp{
  from{opacity:0;transform:translateY(8px);}
  to{opacity:1;transform:translateY(0);}
}
@media (prefers-reduced-motion: reduce){
  *{animation:none !important;transition:none !important;scroll-behavior:auto !important;}
}

/* ---------- Responsive ---------- */
@media (max-width:1279px){
  .event-grid{grid-template-columns:repeat(3,1fr);}
  .page-hero h1{font-size:40px;}
}

@media (max-width:1023px){
  .main-nav{display:none;}
  .nav-toggle{display:inline-flex;}
  .command-search{width:200px;}
  .section{padding:72px 0;}
  .page-hero{padding:48px 0 56px;}
  .hero-grid{grid-template-columns:1fr;gap:32px;}
  .page-hero h1{font-size:34px;}
  .hero-side{max-width:520px;}
  .event-grid{grid-template-columns:repeat(2,1fr);}
  .steps{grid-template-columns:repeat(2,1fr);}
  .split{grid-template-columns:1fr;gap:32px;}
  .quote-grid{grid-template-columns:1fr 1fr;}
  .cta-grid{grid-template-columns:1fr;gap:36px;}
  .footer-grid{grid-template-columns:1fr 1fr;}
  .section-head h2,.cta-copy h2{font-size:26px;}
}

@media (max-width:767px){
  body{font-size:16px;}
  .container{padding:0 18px;}
  .section,.cta-section{padding:48px 0;}
  .page-hero{padding:36px 0 44px;margin-top:12px;}
  .page-hero h1{font-size:29px;}
  .hero-lead{font-size:15.5px;}
  .header-inner{height:66px;gap:12px;}
  .brand-text span{display:none;}
  .command-search{display:none;}
  .link-login{display:none;}
  .event-grid{grid-template-columns:1fr;}
  .steps{grid-template-columns:1fr;}
  .quote-grid{grid-template-columns:1fr;}
  .section-head h2,.cta-copy h2{font-size:24px;}
  .section-head p,.cta-copy > p{font-size:15.5px;}
  .faq-q{font-size:16px;padding:16px 18px;}
  .faq-a-inner{padding:0 18px 18px;font-size:15px;}
  .form-card{padding:22px;}
  .footer-grid{grid-template-columns:1fr;gap:28px;padding-bottom:32px;}
  .footer-desc{max-width:none;}
  .footer-bottom{flex-direction:column;align-items:flex-start;gap:6px;}
}

@media (max-width:520px){
  .btn{width:100%;}
  .header-actions .btn-sm{width:auto;height:36px;padding:0 14px;font-size:13.5px;}
  .page-hero h1{font-size:26px;}
  .hero-tags .tag{font-size:11.5px;}
  .event-card{padding:20px;}
  .date-badge{min-width:52px;}
  .form-card{padding:18px;}
}