/* roulang page: index */
/* ===================== 设计变量 ===================== */
:root{
  --bg:#0B0A1C;
  --bg-layer:#14122B;
  --card:#1A1738;
  --line:rgba(255,255,255,.08);
  --line-strong:rgba(255,255,255,.16);
  --primary:#35E0C4;
  --violet:#7C4DFF;
  --gold:#FFB86B;
  --text:#EDECF7;
  --muted:#A9A6C8;
  --read-bg:#F7F6FD;
  --read-text:#1B1830;
  --grad:linear-gradient(135deg,#7C4DFF 0%,#35E0C4 100%);
  --glow:rgba(53,224,196,.35);
  --r-lg:24px;
  --r-md:20px;
  --r-sm:14px;
  --r-img:18px;
  --shadow:0 18px 40px rgba(0,0,0,.45);
  --shadow-hover:0 26px 56px rgba(0,0,0,.55);
  --max:1240px;
  --ease:cubic-bezier(.22,.61,.36,1);
}

/* ===================== 基础重置 ===================== */
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:"PingFang SC","HarmonyOS Sans","Noto Sans SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:16px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
h1,h2,h3,h4{margin:0;line-height:1.38;font-weight:700;letter-spacing:-.01em;}
p{margin:0;}
ul,ol{margin:0;padding:0;list-style:none;}
img{display:block;max-width:100%;height:auto;}
a{color:inherit;text-decoration:none;transition:color .2s var(--ease);}
button,input,textarea,select{font:inherit;color:inherit;}
button{cursor:pointer;}
table{border-collapse:collapse;width:100%;}
:focus-visible{outline:2px solid var(--primary);outline-offset:3px;border-radius:8px;}
.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;}
.num,.stat-num,.claim-num{font-variant-numeric:tabular-nums;}

/* ===================== 布局容器 ===================== */
.container{
  width:100%;
  max-width:var(--max);
  margin:0 auto;
  padding:0 24px;
}
.section{padding:96px 0;position:relative;}
.section--tight{padding:56px 0 0;}
.section--layer{background:linear-gradient(180deg,rgba(20,18,43,0) 0%,rgba(20,18,43,.85) 40%,rgba(20,18,43,0) 100%);}
.section-head{
  display:flex;
  align-items:flex-end;
  justify-content:space-between;
  gap:28px;
  margin-bottom:44px;
}
.section-head h2{max-width:720px;}
.eyebrow{
  display:inline-flex;
  align-items:center;
  gap:10px;
  font-size:13px;
  font-weight:600;
  letter-spacing:.1em;
  color:var(--primary);
  margin-bottom:14px;
}
.eyebrow::before{
  content:"";
  width:22px;
  height:1px;
  background:var(--primary);
  display:block;
  opacity:.85;
}
.lede{color:var(--muted);font-size:16px;line-height:1.9;}
.grad-text{
  background:var(--grad);
  -webkit-background-clip:text;
  background-clip:text;
  color:transparent;
}

/* ===================== 顶部导航 ===================== */
.site-header{
  position:sticky;
  top:0;
  z-index:90;
  background:rgba(11,10,28,.88);
  backdrop-filter:blur(16px);
  -webkit-backdrop-filter:blur(16px);
  border-bottom:1px solid var(--line);
  transition:background .3s var(--ease);
}
.site-header::after{
  content:"";
  position:absolute;
  left:0;right:0;bottom:-1px;
  height:1px;
  background:linear-gradient(90deg,transparent 0%,rgba(124,77,255,.55) 30%,rgba(53,224,196,.6) 70%,transparent 100%);
  pointer-events:none;
}
.site-header.is-scrolled{background:rgba(11,10,28,.96);}
.nav-wrap{
  display:flex;
  align-items:center;
  gap:24px;
  padding:18px 24px;
  transition:padding .3s var(--ease);
}
.site-header.is-scrolled .nav-wrap{padding:10px 24px;}
.brand{
  display:inline-flex;
  align-items:center;
  gap:10px;
  flex:0 0 auto;
  font-weight:700;
  font-size:17px;
  letter-spacing:.01em;
  white-space:nowrap;
}
.brand .mark{width:22px;height:22px;flex:0 0 auto;}
.brand-text{
  background:linear-gradient(135deg,#EDECF7 0%,#35E0C4 120%);
  -webkit-background-clip:text;
  background-clip:text;
  color:transparent;
}
.main-nav{
  display:flex;
  align-items:center;
  gap:4px;
  margin-left:auto;
}
.nav-link{
  position:relative;
  display:inline-block;
  padding:10px 14px;
  border-radius:10px;
  font-size:15px;
  font-weight:500;
  color:var(--muted);
  white-space:nowrap;
}
.nav-link:hover{color:var(--text);}
.nav-link.is-active{color:var(--text);}
.nav-link.is-active::after{
  content:"";
  position:absolute;
  left:14px;right:14px;bottom:3px;
  height:2px;
  border-radius:2px;
  background:var(--grad);
  box-shadow:0 0 12px var(--glow);
}
.nav-actions{display:flex;align-items:center;gap:12px;flex:0 0 auto;}
.nav-toggle{
  display:none;
  flex-direction:column;
  justify-content:center;
  gap:5px;
  width:42px;height:42px;
  padding:10px;
  background:transparent;
  border:1px solid var(--line-strong);
  border-radius:12px;
}
.nav-toggle span{
  display:block;
  width:20px;
  height:2px;
  border-radius:2px;
  background:var(--text);
  transition:transform .25s var(--ease),opacity .25s var(--ease);
}
.nav-toggle.is-open span:nth-child(1){transform:translateY(7px) rotate(45deg);}
.nav-toggle.is-open span:nth-child(2){opacity:0;}
.nav-toggle.is-open span:nth-child(3){transform:translateY(-7px) rotate(-45deg);}

/* ===================== 按钮 ===================== */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  padding:12px 26px;
  border:1px solid transparent;
  border-radius:999px;
  font-size:15px;
  font-weight:600;
  line-height:1.4;
  cursor:pointer;
  transition:transform .25s var(--ease),box-shadow .25s var(--ease),background .25s var(--ease),border-color .25s var(--ease),color .25s var(--ease);
}
.btn-primary{
  background:var(--grad);
  color:#07121C;
  box-shadow:0 12px 30px rgba(53,224,196,.26);
}
.btn-primary:hover{
  transform:translateY(-2px);
  box-shadow:0 18px 40px rgba(53,224,196,.4);
  color:#07121C;
}
.btn-primary:active{transform:translateY(0);}
.btn-ghost{
  background:rgba(255,255,255,.03);
  border-color:var(--line-strong);
  color:var(--text);
}
.btn-ghost:hover{
  border-color:rgba(53,224,196,.6);
  color:var(--primary);
  transform:translateY(-2px);
  background:rgba(53,224,196,.06);
}
.btn-lg{padding:15px 34px;font-size:16px;}
.btn-sm{padding:9px 20px;font-size:14px;}
.link-more{
  display:inline-flex;
  align-items:center;
  gap:6px;
  font-size:14px;
  font-weight:600;
  color:var(--primary);
  white-space:nowrap;
}
.link-more span{transition:transform .25s var(--ease);display:inline-block;}
.link-more:hover span{transform:translateX(4px);}

/* ===================== Hero ===================== */
.hero{
  position:relative;
  overflow:hidden;
  padding:88px 0 92px;
  border-bottom:1px solid var(--line);
}
.hero::before{
  content:"";
  position:absolute;
  inset:0;
  background:
    radial-gradient(760px 460px at 12% 6%,rgba(124,77,255,.22),transparent 62%),
    radial-gradient(680px 420px at 88% 92%,rgba(53,224,196,.16),transparent 66%);
  pointer-events:none;
}
.hero-starfield{
  position:absolute;
  inset:0;
  pointer-events:none;
  opacity:.55;
  background-image:
    radial-gradient(1.4px 1.4px at 8% 18%,rgba(237,236,247,.9),transparent 60%),
    radial-gradient(1.2px 1.2px at 22% 62%,rgba(53,224,196,.85),transparent 60%),
    radial-gradient(1px 1px at 34% 28%,rgba(237,236,247,.7),transparent 60%),
    radial-gradient(1.6px 1.6px at 47% 78%,rgba(255,184,107,.7),transparent 60%),
    radial-gradient(1px 1px at 61% 16%,rgba(237,236,247,.6),transparent 60%),
    radial-gradient(1.3px 1.3px at 74% 54%,rgba(124,77,255,.85),transparent 60%),
    radial-gradient(1px 1px at 86% 26%,rgba(237,236,247,.7),transparent 60%),
    radial-gradient(1.4px 1.4px at 93% 72%,rgba(53,224,196,.7),transparent 60%);
}
.hero-grid{
  position:relative;
  z-index:2;
  display:grid;
  grid-template-columns:minmax(0,1.05fr) minmax(0,.95fr);
  align-items:center;
  gap:56px;
}
.hero-copy h1{
  font-size:clamp(30px,4.2vw,52px);
  font-weight:800;
  line-height:1.28;
  letter-spacing:-.02em;
  margin-bottom:22px;
}
.hero-sub{
  font-size:17px;
  line-height:1.9;
  color:var(--muted);
  max-width:560px;
  margin-bottom:34px;
}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:34px;}
.badge-row{
  display:flex;
  flex-wrap:wrap;
  gap:12px;
}
.badge{
  display:inline-flex;
  align-items:center;
  gap:8px;
  padding:9px 18px;
  border-radius:999px;
  background:rgba(255,184,107,.12);
  border:1px solid rgba(255,184,107,.28);
  color:var(--gold);
  font-size:13.5px;
  font-weight:500;
  letter-spacing:.01em;
}
.badge strong{
  font-size:15px;
  font-weight:700;
  font-variant-numeric:tabular-nums;
}
.hero-visual{position:relative;}
.hero-visual img{
  width:100%;
  border-radius:var(--r-lg);
  border:1px solid var(--line-strong);
  box-shadow:0 26px 60px rgba(0,0,0,.55);
}
.hero-visual::after{
  content:"";
  position:absolute;
  inset:0;
  border-radius:var(--r-lg);
  background:linear-gradient(155deg,rgba(124,77,255,.34) 0%,rgba(11,10,28,.5) 58%,rgba(53,224,196,.22) 100%);
  pointer-events:none;
}
.float-badge{
  position:absolute;
  left:22px;
  bottom:22px;
  z-index:3;
  display:inline-flex;
  align-items:center;
  gap:8px;
  padding:10px 18px;
  border-radius:999px;
  background:rgba(11,10,28,.86);
  border:1px solid rgba(53,224,196,.4);
  color:var(--primary);
  font-size:13.5px;
  font-weight:600;
  box-shadow:0 10px 26px rgba(0,0,0,.5);
}
.float-badge::before{
  content:"";
  width:7px;height:7px;
  border-radius:50%;
  background:var(--primary);
  box-shadow:0 0 10px var(--glow);
}

/* ===================== 主张条 ===================== */
.claim-bar{
  position:relative;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:36px;
  flex-wrap:wrap;
  padding:38px 44px;
  border-radius:var(--r-lg);
  background:linear-gradient(135deg,rgba(124,77,255,.16) 0%,rgba(26,23,56,.95) 48%,rgba(53,224,196,.12) 100%);
  border:1px solid var(--line-strong);
  box-shadow:var(--shadow);
  overflow:hidden;
}
.claim-bar::before{
  content:"";
  position:absolute;
  left:0;top:0;bottom:0;
  width:3px;
  background:var(--grad);
  box-shadow:0 0 20px var(--glow);
}
.claim-text{
  font-size:clamp(19px,2.2vw,25px);
  font-weight:700;
  line-height:1.6;
  max-width:520px;
}
.claim-stats{
  display:flex;
  flex-wrap:wrap;
  gap:14px;
}
.claim-stat{
  min-width:132px;
  padding:14px 20px;
  border-radius:var(--r-sm);
  background:rgba(11,10,28,.6);
  border:1px solid var(--line);
}
.claim-num{
  display:block;
  font-size:24px;
  font-weight:700;
  line-height:1.2;
  color:var(--gold);
  margin-bottom:4px;
}
.claim-label{font-size:13px;color:var(--muted);line-height:1.6;}

/* ===================== 故事区 ===================== */
.story-row{
  display:grid;
  grid-template-columns:minmax(0,1fr) minmax(0,1fr);
  gap:56px;
  align-items:center;
  padding:36px 0;
}
.story-row + .story-row{margin-top:28px;}
.story-row--reverse .story-media{order:2;}
.story-row--reverse .story-copy{order:1;}
.story-media{position:relative;}
.story-media img{
  width:100%;
  border-radius:var(--r-lg);
  border:1px solid var(--line);
  box-shadow:var(--shadow);
}
.story-media::after{
  content:"";
  position:absolute;
  inset:0;
  border-radius:var(--r-lg);
  background:linear-gradient(200deg,rgba(53,224,196,.18),rgba(11,10,28,.42) 70%);
  pointer-events:none;
}
.story-copy h3{
  font-size:clamp(21px,2.4vw,27px);
  margin-bottom:16px;
}
.story-copy p{
  color:var(--muted);
  font-size:16px;
  line-height:1.95;
  margin-bottom:20px;
}

/* ===================== 精选卡片 ===================== */
.feature-grid{
  display:grid;
  grid-template-columns:repeat(12,1fr);
  gap:26px;
}
.card{
  position:relative;
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--r-md);
  padding:32px;
  transition:transform .28s var(--ease),box-shadow .28s var(--ease),border-color .28s var(--ease);
}
.card:hover{
  transform:translateY(-4px);
  box-shadow:var(--shadow-hover);
  border-color:rgba(53,224,196,.35);
}
.feature-card{
  overflow:hidden;
  padding:0;
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--r-md);
  display:flex;
  flex-direction:column;
  transition:transform .28s var(--ease),box-shadow .28s var(--ease),border-color .28s var(--ease);
}
.feature-card:hover{
  transform:translateY(-4px);
  box-shadow:var(--shadow-hover);
  border-color:rgba(53,224,196,.35);
}
.feature-card--main{grid-column:span 8;grid-row:span 2;}
.feature-card--side{grid-column:span 4;}
.feature-card--offset{transform:translateY(18px);}
.feature-card--offset:hover{transform:translateY(14px);}
.feature-card img{
  width:100%;
  aspect-ratio:16/9;
  object-fit:cover;
  border-bottom:1px solid var(--line);
}
.feature-card--side img{aspect-ratio:16/10;}
.feature-body{padding:28px 30px 30px;display:flex;flex-direction:column;flex:1;}
.feature-body h3{font-size:19px;margin:14px 0 12px;line-height:1.55;}
.feature-card--main .feature-body h3{font-size:23px;}
.feature-body p{color:var(--muted);font-size:15px;line-height:1.85;margin-bottom:18px;flex:1;}
.pill{
  display:inline-flex;
  align-items:center;
  align-self:flex-start;
  padding:5px 14px;
  border-radius:999px;
  font-size:12.5px;
  font-weight:600;
  letter-spacing:.03em;
  color:var(--primary);
  background:rgba(53,224,196,.11);
  border:1px solid rgba(53,224,196,.3);
}
.pill--gold{color:var(--gold);background:rgba(255,184,107,.11);border-color:rgba(255,184,107,.3);}
.pill--violet{color:#B9A5FF;background:rgba(124,77,255,.14);border-color:rgba(124,77,255,.34);}

/* ===================== 最新信息 ===================== */
.post-grid{
  display:grid;
  grid-template-columns:repeat(2,minmax(0,1fr));
  gap:20px;
}
.post-card{
  display:flex;
  justify-content:space-between;
  gap:24px;
  padding:26px 28px;
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--r-md);
  transition:transform .28s var(--ease),box-shadow .28s var(--ease),border-color .28s var(--ease);
}
.post-card:hover{
  transform:translateY(-4px);
  box-shadow:var(--shadow-hover);
  border-color:rgba(53,224,196,.35);
}
.post-main{min-width:0;flex:1;}
.post-title{
  font-size:18px;
  font-weight:600;
  line-height:1.6;
  margin-bottom:10px;
  display:-webkit-box;
  -webkit-line-clamp:2;
  -webkit-box-orient:vertical;
  overflow:hidden;
}
.post-title a:hover{color:var(--primary);}
.post-excerpt{
  color:var(--muted);
  font-size:15px;
  line-height:1.8;
  display:-webkit-box;
  -webkit-line-clamp:3;
  -webkit-box-orient:vertical;
  overflow:hidden;
}
.post-side{
  flex:0 0 auto;
  width:126px;
  display:flex;
  flex-direction:column;
  align-items:flex-end;
  gap:10px;
  text-align:right;
}
.post-date{font-size:13px;color:var(--muted);font-variant-numeric:tabular-nums;}
.post-more{
  font-size:13.5px;
  font-weight:600;
  color:var(--primary);
  display:inline-flex;
  align-items:center;
  gap:5px;
}
.post-more::after{content:"→";transition:transform .25s var(--ease);display:inline-block;}
.post-more:hover::after{transform:translateX(4px);}
.empty-state{
  grid-column:1 / -1;
  text-align:center;
  padding:64px 28px;
  border-radius:var(--r-md);
  border:1px dashed var(--line-strong);
  background:rgba(20,18,43,.6);
  color:var(--muted);
  font-size:15.5px;
  line-height:1.9;
}
.empty-state .btn{margin-top:18px;}

/* ===================== 信任背书 ===================== */
.trust-grid{
  display:grid;
  grid-template-columns:minmax(0,1.15fr) minmax(0,1fr);
  gap:52px;
  align-items:start;
}
.trust-left h2{margin-bottom:18px;}
.trust-left p{color:var(--muted);margin-bottom:28px;}
.trust-cards{display:grid;gap:16px;}
.trust-card{
  padding:24px 26px;
  border-radius:var(--r-sm);
  border:1px solid var(--line-strong);
  background:rgba(26,23,56,.6);
  transition:border-color .25s var(--ease),transform .25s var(--ease),background .25s var(--ease);
}
.trust-card:hover{
  border-color:rgba(53,224,196,.5);
  background:rgba(26,23,56,.9);
  transform:translateX(4px);
}
.trust-card h4{font-size:17px;margin-bottom:8px;display:flex;align-items:center;gap:10px;}
.trust-card h4 i{color:var(--primary);font-size:15px;}
.trust-card p{color:var(--muted);font-size:14.5px;line-height:1.8;}

/* ===================== CTA ===================== */
.cta-card{
  position:relative;
  display:grid;
  grid-template-columns:minmax(0,1fr) minmax(0,.9fr);
  gap:48px;
  align-items:center;
  padding:52px 52px;
  border-radius:var(--r-lg);
  background:linear-gradient(135deg,rgba(124,77,255,.2) 0%,rgba(20,18,43,.96) 52%,rgba(53,224,196,.16) 100%);
  overflow:hidden;
}
.cta-card::before{
  content:"";
  position:absolute;
  inset:0;
  border-radius:var(--r-lg);
  padding:1px;
  background:var(--grad);
  -webkit-mask:linear-gradient(#000 0 0) content-box,linear-gradient(#000 0 0);
  -webkit-mask-composite:xor;
  mask-composite:exclude;
  pointer-events:none;
  opacity:.75;
}
.cta-copy h2{margin-bottom:14px;}
.cta-copy p{color:var(--muted);font-size:15.5px;}
.cta-form{
  display:grid;
  grid-template-columns:minmax(0,1fr) auto;
  gap:12px;
  align-items:center;
}
.cta-form input{
  width:100%;
  padding:14px 20px;
  border-radius:999px;
  background:rgba(11,10,28,.75);
  border:1px solid var(--line-strong);
  color:var(--text);
  font-size:15px;
  transition:border-color .2s var(--ease),box-shadow .2s var(--ease);
}
.cta-form input::placeholder{color:var(--muted);}
.cta-form input:focus{
  outline:none;
  border-color:var(--primary);
  box-shadow:0 0 0 3px rgba(53,224,196,.18);
}
.form-note{
  grid-column:1 / -1;
  font-size:13px;
  color:var(--muted);
  line-height:1.7;
}

/* ===================== FAQ ===================== */
.faq-list{display:grid;gap:14px;}
.faq-item{
  position:relative;
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--r-sm);
  padding:0 26px 0 32px;
  transition:border-color .25s var(--ease),box-shadow .25s var(--ease);
}
.faq-item::before{
  content:"";
  position:absolute;
  left:0;
  top:16px;
  bottom:16px;
  width:3px;
  border-radius:0 3px 3px 0;
  background:var(--grad);
  opacity:.42;
  transition:opacity .25s var(--ease),box-shadow .25s var(--ease);
}
.faq-item[open]{
  border-color:rgba(53,224,196,.4);
  box-shadow:0 12px 34px rgba(0,0,0,.4);
}
.faq-item[open]::before{opacity:1;box-shadow:0 0 18px var(--glow);}
.faq-item summary{
  list-style:none;
  cursor:pointer;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:18px;
  padding:21px 0;
  font-size:16.5px;
  font-weight:600;
  line-height:1.6;
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary::after{
  content:"";
  flex:0 0 auto;
  width:10px;height:10px;
  border-right:2px solid var(--primary);
  border-bottom:2px solid var(--primary);
  transform:rotate(45deg);
  transition:transform .18s var(--ease);
  margin-top:-4px;
}
.faq-item[open] summary::after{transform:rotate(-135deg);margin-top:4px;}
.faq-answer{
  padding:0 0 24px;
  color:var(--muted);
  font-size:15.5px;
  line-height:1.9;
  border-top:1px solid var(--line);
  padding-top:18px;
  max-width:78ch;
}

/* ===================== 页脚 ===================== */
.site-footer{
  position:relative;
  margin-top:24px;
  background:linear-gradient(180deg,rgba(20,18,43,0) 0%,rgba(20,18,43,.92) 22%,#0B0A1C 100%);
  border-top:1px solid var(--line);
  padding:0 0 32px;
}
.site-footer::before{
  content:"";
  position:absolute;
  left:0;right:0;top:-1px;
  height:1px;
  background:linear-gradient(90deg,transparent,rgba(124,77,255,.6),rgba(53,224,196,.6),transparent);
}
.footer-grid{
  display:grid;
  grid-template-columns:minmax(0,1.5fr) repeat(3,minmax(0,1fr));
  gap:44px;
  padding:72px 24px 44px;
}
.footer-brand .brand{margin-bottom:18px;font-size:18px;}
.footer-brand p{color:var(--muted);font-size:14.5px;line-height:1.9;max-width:380px;}
.footer-col h4{
  font-size:15px;
  font-weight:600;
  margin-bottom:18px;
  color:var(--text);
  letter-spacing:.02em;
}
.footer-col ul{display:grid;gap:11px;}
.footer-col li{font-size:14.5px;color:var(--muted);}
.footer-col a{color:var(--muted);}
.footer-col a:hover{color:var(--primary);text-decoration:underline;}
.footer-bottom{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:18px;
  flex-wrap:wrap;
  padding:24px 24px 0;
  border-top:1px solid var(--line);
  font-size:13.5px;
  color:var(--muted);
}

/* ===================== 响应式 ===================== */
@media (min-width:1025px){
  .hero{min-height:78vh;display:flex;align-items:center;}
  .hero .container{width:100%;}
}

@media (max-width:1024px){
  .section{padding:64px 0;}
  .section--tight{padding:44px 0 0;}
  .hero{padding:64px 0 72px;}
  .hero-grid{grid-template-columns:1fr;gap:44px;}
  .hero-visual{order:2;}
  .story-row{grid-template-columns:1fr;gap:32px;padding:24px 0;}
  .story-row--reverse .story-media{order:0;}
  .story-row--reverse .story-copy{order:0;}
  .trust-grid{grid-template-columns:1fr;gap:36px;}
  .cta-card{grid-template-columns:1fr;gap:32px;padding:40px 36px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:36px;padding:56px 24px 36px;}

  .main-nav{
    position:fixed;
    top:0;
    right:0;
    bottom:0;
    width:min(84vw,360px);
    margin-left:0;
    padding:96px 30px 40px;
    background:rgba(20,18,43,.98);
    backdrop-filter:blur(18px);
    -webkit-backdrop-filter:blur(18px);
    border-left:1px solid var(--line);
    flex-direction:column;
    align-items:stretch;
    gap:0;
    transform:translateX(102%);
    transition:transform .32s var(--ease);
    overflow-y:auto;
    z-index:95;
    box-shadow:-24px 0 60px rgba(0,0,0,.6);
  }
  .main-nav.is-open{transform:translateX(0);}
  .main-nav .nav-link{
    width:100%;
    text-align:right;
    font-size:19px;
    padding:16px 0;
    border-bottom:1px solid var(--line);
    border-radius:0;
  }
  .main-nav .nav-link.is-active::after{left:auto;right:0;width:34px;bottom:10px;}
  .nav-toggle{display:flex;margin-left:auto;}
  .nav-actions{margin-left:0;}
  .nav-actions .btn{display:none;}
}

@media (max-width:900px){
  .feature-grid{grid-template-columns:1fr;gap:20px;}
  .feature-card--main,.feature-card--side{grid-column:auto;grid-row:auto;}
  .feature-card--offset{transform:none;}
  .feature-card--offset:hover{transform:translateY(-4px);}
  .post-grid{grid-template-columns:1fr;}
}

@media (max-width:768px){
  .container{padding:0 20px;}
  .section{padding:48px 0;}
  .section-head{flex-direction:column;align-items:flex-start;gap:14px;margin-bottom:32px;}
  .hero{padding:48px 0 56px;}
  .hero-actions{gap:12px;}
  .hero-actions .btn{flex:1 1 100%;}
  .claim-bar{padding:30px 26px;gap:24px;}
  .claim-stats{width:100%;}
  .claim-stat{flex:1 1 40%;min-width:0;}
  .cta-card{padding:32px 24px;}
  .cta-form{grid-template-columns:1fr;}
  .cta-form .btn{width:100%;}
  .post-card{flex-direction:column;gap:16px;padding:22px 22px;}
  .post-side{
    width:100%;
    flex-direction:row;
    align-items:center;
    justify-content:space-between;
    text-align:left;
    border-top:1px solid var(--line);
    padding-top:14px;
  }
  .footer-grid{grid-template-columns:1fr;gap:32px;padding:48px 20px 32px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;padding:20px 20px 0;}
  .faq-item{padding:0 20px 0 24px;}
  .faq-item summary{font-size:15.5px;padding:18px 0;}
}

@media (max-width:520px){
  body{font-size:15.5px;}
  .brand-text{font-size:15px;white-space:normal;}
  .nav-wrap{padding:14px 20px;gap:12px;}
  .site-header.is-scrolled .nav-wrap{padding:8px 20px;}
  .hero-copy h1{font-size:clamp(26px,7vw,34px);}
  .hero-sub{font-size:15.5px;}
  .badge{font-size:13px;padding:8px 14px;}
  .card,.feature-body{padding:24px;}
  .feature-body{padding:22px 22px 24px;}
  .claim-text{font-size:19px;}
  .claim-stat{flex:1 1 100%;}
  .footer-brand p{font-size:14px;}
}

/* roulang page: article */
:root{
  --bg:#0B0A1C;
  --surface:#14122B;
  --card:#1A1738;
  --line:rgba(255,255,255,.08);
  --line-strong:rgba(255,255,255,.18);
  --cyan:#35E0C4;
  --violet:#7C4DFF;
  --gold:#FFB86B;
  --text:#EDECF7;
  --muted:#A9A6C8;
  --read-bg:#F7F6FD;
  --read-text:#1B1830;
  --read-muted:#5C5880;
  --read-link:#5B3BE0;
  --grad:linear-gradient(135deg,#7C4DFF 0%,#35E0C4 100%);
  --r-xl:24px;
  --r-lg:20px;
  --r-md:16px;
  --r-sm:12px;
  --shadow:0 18px 40px rgba(0,0,0,.45);
  --shadow-hover:0 26px 56px rgba(0,0,0,.58);
  --glow:0 0 0 1px rgba(53,224,196,.45), 0 0 26px rgba(53,224,196,.28);
  --container:1240px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:"PingFang SC","HarmonyOS Sans","Noto Sans SC","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  font-size:16.5px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
}
body::before{
  content:"";
  position:fixed;
  inset:0;
  pointer-events:none;
  z-index:0;
  background-image:
    radial-gradient(circle at 12% 18%, rgba(124,77,255,.10), transparent 42%),
    radial-gradient(circle at 86% 8%, rgba(53,224,196,.08), transparent 38%);
}
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;}
button{font-family:inherit;}
h1,h2,h3,h4,p,ul,ol{margin:0;}
ul{padding:0;list-style:none;}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 24px;}
main{position:relative;z-index:1;}
::selection{background:rgba(53,224,196,.32);color:#fff;}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  border:1px solid transparent;
  border-radius:999px;
  padding:13px 28px;
  font-size:15.5px;
  font-weight:600;
  letter-spacing:.02em;
  cursor:pointer;
  transition:transform .22s ease,box-shadow .22s ease,background .22s ease,border-color .22s ease,color .22s ease;
  white-space:nowrap;
}
.btn-primary{
  background:var(--grad);
  color:#08131A;
  box-shadow:0 12px 28px rgba(53,224,196,.22);
}
.btn-primary:hover,.btn-primary:focus-visible{
  transform:translateY(-3px);
  box-shadow:0 18px 36px rgba(53,224,196,.34);
}
.btn-ghost{
  background:rgba(255,255,255,.02);
  border-color:var(--line-strong);
  color:var(--text);
  border-radius:16px;
}
.btn-ghost:hover,.btn-ghost:focus-visible{
  border-color:rgba(53,224,196,.6);
  color:#fff;
  transform:translateY(-3px);
  box-shadow:0 16px 32px rgba(0,0,0,.42);
}
.btn-sm{padding:10px 20px;font-size:14.5px;}
.btn:focus-visible{outline:2px solid var(--cyan);outline-offset:3px;}

/* ---------- header ---------- */
.site-header{
  position:sticky;
  top:0;
  z-index:60;
  background:rgba(11,10,28,.88);
  backdrop-filter:blur(14px);
  border-bottom:1px solid var(--line);
  transition:padding .25s ease,background .25s ease,box-shadow .25s ease;
}
.site-header::after{
  content:"";
  display:block;
  height:1px;
  background:linear-gradient(90deg,transparent,rgba(124,77,255,.75),rgba(53,224,196,.75),transparent);
}
.site-header.is-scrolled{background:rgba(9,8,23,.96);box-shadow:0 12px 30px rgba(0,0,0,.45);}
.nav-wrap{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:24px;
  padding-top:16px;
  padding-bottom:16px;
  transition:padding .25s ease;
}
.site-header.is-scrolled .nav-wrap{padding-top:9px;padding-bottom:9px;}
.brand{display:inline-flex;align-items:center;gap:10px;font-weight:700;font-size:17px;letter-spacing:.01em;}
.brand .mark{width:26px;height:26px;flex:none;}
.brand-text{background:linear-gradient(120deg,#FFFFFF 12%,#CFC8FF 52%,#8FF3E2 100%);-webkit-background-clip:text;background-clip:text;color:transparent;}
.main-nav{display:flex;align-items:center;gap:6px;}
.nav-link{
  position:relative;
  padding:10px 16px;
  border-radius:12px;
  font-size:15.5px;
  color:var(--muted);
  transition:color .2s ease,background .2s ease;
}
.nav-link::after{
  content:"";
  position:absolute;
  left:16px;
  right:16px;
  bottom:4px;
  height:2px;
  border-radius:2px;
  background:var(--grad);
  transform:scaleX(0);
  transform-origin:left;
  transition:transform .24s ease;
}
.nav-link:hover,.nav-link:focus-visible{color:#fff;background:rgba(255,255,255,.04);}
.nav-link:hover::after,.nav-link:focus-visible::after{transform:scaleX(1);}
.nav-link.is-active{color:#fff;text-shadow:0 0 16px rgba(53,224,196,.5);}
.nav-link.is-active::after{transform:scaleX(1);}
.nav-actions{display:flex;align-items:center;gap:12px;}
.nav-toggle{
  display:none;
  width:44px;height:44px;
  border-radius:12px;
  border:1px solid var(--line-strong);
  background:rgba(255,255,255,.03);
  padding:0;
  cursor:pointer;
  flex-direction:column;
  align-items:center;
  justify-content:center;
  gap:5px;
}
.nav-toggle span{display:block;width:18px;height:2px;background:var(--text);border-radius:2px;transition:transform .25s ease,opacity .25s ease;}
.nav-toggle.is-active span:nth-child(1){transform:translateY(7px) rotate(45deg);}
.nav-toggle.is-active span:nth-child(2){opacity:0;}
.nav-toggle.is-active span:nth-child(3){transform:translateY(-7px) rotate(-45deg);}

/* ---------- article hero ---------- */
.article-hero{
  position:relative;
  padding:78px 0 64px;
  background-image:linear-gradient(180deg,rgba(11,10,28,.72),rgba(11,10,28,.96)),url('/assets/images/backpic/back-1.webp');
  background-size:cover;
  background-position:center;
  overflow:hidden;
}
.article-hero::after{
  content:"";
  position:absolute;
  inset:auto 0 0 0;
  height:1px;
  background:linear-gradient(90deg,transparent,rgba(124,77,255,.5),rgba(53,224,196,.5),transparent);
}
.crumbs{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:14px;color:var(--muted);margin-bottom:22px;}
.crumbs a{color:var(--muted);transition:color .2s ease;}
.crumbs a:hover,.crumbs a:focus-visible{color:var(--cyan);}
.crumbs .sep{opacity:.5;}
.crumbs .current{color:#D9D6F2;}
.article-hero h1{
  font-size:clamp(27px,4vw,44px);
  font-weight:800;
  line-height:1.34;
  letter-spacing:-.01em;
  max-width:900px;
  background:linear-gradient(120deg,#FFFFFF 20%,#CBC3FF 70%,#8FF3E2 100%);
  -webkit-background-clip:text;
  background-clip:text;
  color:transparent;
}
.meta-row{display:flex;flex-wrap:wrap;align-items:center;gap:12px;margin-top:20px;font-size:14px;color:var(--muted);}
.meta-row .dot{width:4px;height:4px;border-radius:50%;background:rgba(255,255,255,.28);}
.pill{
  display:inline-flex;
  align-items:center;
  gap:6px;
  padding:5px 14px;
  border-radius:999px;
  font-size:13px;
  border:1px solid rgba(53,224,196,.35);
  background:rgba(53,224,196,.09);
  color:#8FF3E2;
}
.pill-gold{
  border-color:rgba(255,184,107,.35);
  background:rgba(255,184,107,.12);
  color:var(--gold);
  font-variant-numeric:tabular-nums;
}

/* ---------- reading area ---------- */
.read-section{padding:56px 0 24px;}
.read-shell{max-width:940px;margin:0 auto;}
.read-card{
  background:var(--read-bg);
  color:var(--read-text);
  border-radius:var(--r-xl);
  padding:48px;
  box-shadow:0 28px 60px rgba(0,0,0,.5);
  border:1px solid rgba(255,255,255,.1);
}
.article-body{font-size:17px;line-height:1.92;color:var(--read-text);max-width:760px;margin:0 auto;}
.article-body > *:first-child{margin-top:0;}
.article-body p{margin:0 0 1.05em;word-break:break-word;}
.article-body h2{
  position:relative;
  margin:42px 0 18px;
  padding-left:16px;
  font-size:24px;
  font-weight:700;
  line-height:1.5;
  color:#141134;
}
.article-body h2::before{
  content:"";
  position:absolute;
  left:0;
  top:.2em;
  width:4px;
  height:1.05em;
  border-radius:3px;
  background:var(--grad);
}
.article-body h3{margin:30px 0 14px;font-size:20px;font-weight:600;color:#1F1B44;}
.article-body h4{margin:24px 0 12px;font-size:17.5px;font-weight:600;color:#2A2560;}
.article-body a{color:var(--read-link);text-decoration:underline;text-underline-offset:3px;transition:opacity .2s ease;}
.article-body a:hover,.article-body a:focus-visible{opacity:.75;}
.article-body img{border-radius:18px;margin:26px auto;box-shadow:0 14px 30px rgba(27,24,48,.16);}
.article-body ul,.article-body ol{margin:0 0 1.1em;padding-left:1.35em;}
.article-body ul{list-style:none;padding-left:0;}
.article-body ul li{position:relative;padding-left:20px;margin:.5em 0;}
.article-body ul li::before{
  content:"";
  position:absolute;
  left:2px;
  top:.72em;
  width:7px;height:7px;
  border-radius:2px;
  transform:rotate(45deg);
  background:linear-gradient(135deg,#7C4DFF,#35E0C4);
}
.article-body ol{list-style:decimal;}
.article-body ol li{margin:.5em 0;padding-left:4px;}
.article-body blockquote{
  margin:26px 0;
  padding:18px 22px;
  border-left:4px solid #7C4DFF;
  border-radius:0 14px 14px 0;
  background:rgba(124,77,255,.08);
  color:#3A3468;
}
.article-body blockquote p:last-child{margin-bottom:0;}
.article-body table{width:100%;border-collapse:collapse;margin:24px 0;font-size:15px;background:#fff;border-radius:12px;overflow:hidden;}
.article-body th,.article-body td{border:1px solid rgba(27,24,48,.12);padding:11px 14px;text-align:left;}
.article-body th{background:rgba(124,77,255,.09);font-weight:600;}
.article-body code{background:rgba(27,24,48,.08);padding:2px 7px;border-radius:6px;font-size:14.5px;}
.article-body pre{background:#14122B;color:#EDECF7;padding:20px;border-radius:14px;overflow:auto;font-size:14.5px;}
.article-body hr{border:none;border-top:1px solid rgba(27,24,48,.14);margin:34px 0;}

.article-empty{text-align:center;padding:26px 10px 34px;}
.article-empty h2{font-size:23px;font-weight:700;color:#141134;margin-bottom:12px;}
.article-empty p{color:var(--read-muted);margin-bottom:24px;}

/* ---------- back entry ---------- */
.back-entry{display:flex;flex-wrap:wrap;gap:14px;justify-content:center;padding:34px 0 6px;}

/* ---------- related ---------- */
.section{padding:86px 0;}
.section-head{display:flex;flex-wrap:wrap;align-items:flex-end;justify-content:space-between;gap:16px;margin-bottom:34px;}
.section-head h2{font-size:clamp(23px,3vw,32px);font-weight:700;letter-spacing:-.01em;}
.section-head p{color:var(--muted);font-size:15px;margin-top:8px;max-width:640px;}
.text-link{color:var(--cyan);font-size:15px;display:inline-flex;align-items:center;gap:6px;transition:gap .2s ease,color .2s ease;}
.text-link:hover,.text-link:focus-visible{gap:12px;color:#8FF3E2;}
.related-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.related-card{
  display:flex;
  gap:16px;
  align-items:center;
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--r-lg);
  padding:16px;
  transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease;
}
.related-card:hover,.related-card:focus-within{transform:translateY(-4px);box-shadow:var(--shadow-hover);border-color:rgba(53,224,196,.4);}
.related-card img{width:74px;height:74px;object-fit:cover;border-radius:14px;flex:none;}
.related-card h3{font-size:16px;font-weight:600;line-height:1.5;margin-bottom:6px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.related-card span{font-size:13.5px;color:var(--muted);display:inline-flex;align-items:center;gap:6px;}

/* ---------- faq ---------- */
.faq-list{display:grid;gap:14px;max-width:900px;margin:0 auto;}
.faq-item{
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--r-md);
  padding:0 22px;
  transition:border-color .22s ease,box-shadow .22s ease,background .22s ease;
}
.faq-item.is-open{border-color:rgba(53,224,196,.45);box-shadow:var(--glow);background:#1E1B40;}
.faq-q{
  width:100%;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  background:none;
  border:none;
  color:var(--text);
  font-size:16.5px;
  font-weight:600;
  text-align:left;
  padding:20px 0;
  cursor:pointer;
}
.faq-q:focus-visible{outline:2px solid var(--cyan);outline-offset:2px;border-radius:8px;}
.faq-q i{color:var(--cyan);transition:transform .18s ease;font-size:14px;}
.faq-item.is-open .faq-q i{transform:rotate(180deg);}
.faq-a{max-height:0;overflow:hidden;transition:max-height .28s ease;}
.faq-item.is-open .faq-a{max-height:340px;}
.faq-a p{color:var(--muted);font-size:15.5px;padding:0 0 20px;border-top:1px solid var(--line);padding-top:16px;}

/* ---------- cta ---------- */
.cta-card{
  position:relative;
  border-radius:var(--r-xl);
  padding:46px;
  background:linear-gradient(135deg,rgba(124,77,255,.18),rgba(53,224,196,.12));
  border:1px solid var(--line-strong);
  display:grid;
  grid-template-columns:1.15fr .85fr;
  gap:34px;
  align-items:center;
  overflow:hidden;
}
.cta-card::before{
  content:"";
  position:absolute;
  inset:0;
  border-radius:var(--r-xl);
  padding:1px;
  background:linear-gradient(135deg,rgba(124,77,255,.7),rgba(53,224,196,.7));
  -webkit-mask:linear-gradient(#000 0 0) content-box,linear-gradient(#000 0 0);
  -webkit-mask-composite:xor;
  mask-composite:exclude;
  pointer-events:none;
}
.cta-card h2{font-size:clamp(22px,2.8vw,30px);font-weight:700;line-height:1.42;margin-bottom:12px;}
.cta-card p{color:var(--muted);font-size:15.5px;}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;justify-content:flex-end;}
.also{
  display:grid;
  gap:12px;
  margin-top:22px;
}
.also span{
  display:inline-flex;
  align-items:center;
  gap:10px;
  color:var(--muted);
  font-size:14.5px;
}
.also span i{color:var(--gold);font-size:13px;}

/* ---------- footer ---------- */
.site-footer{
  position:relative;
  margin-top:30px;
  background:linear-gradient(180deg,rgba(20,18,43,.9),rgba(11,10,28,1));
  border-top:1px solid var(--line);
  padding-top:70px;
  z-index:1;
}
.site-footer::before{
  content:"";
  position:absolute;
  top:0;left:0;right:0;
  height:1px;
  background:linear-gradient(90deg,transparent,rgba(124,77,255,.7),rgba(53,224,196,.7),transparent);
}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:34px;padding-bottom:48px;}
.footer-brand .brand{font-size:17px;margin-bottom:16px;}
.footer-brand p{color:var(--muted);font-size:14.5px;max-width:340px;}
.footer-col h4{font-size:15.5px;font-weight:600;margin-bottom:18px;color:#fff;}
.footer-col ul{display:grid;gap:12px;}
.footer-col li{color:var(--muted);font-size:14.5px;}
.footer-col a{color:var(--muted);transition:color .2s ease,text-decoration-color .2s ease;text-decoration:underline;text-decoration-color:transparent;text-underline-offset:4px;}
.footer-col a:hover,.footer-col a:focus-visible{color:var(--cyan);text-decoration-color:var(--cyan);}
.footer-bottom{
  display:flex;
  flex-wrap:wrap;
  justify-content:space-between;
  gap:10px;
  padding-top:20px;
  padding-bottom:28px;
  border-top:1px solid var(--line);
  color:var(--muted);
  font-size:13.5px;
}

/* ---------- responsive ---------- */
@media (max-width:1024px){
  .nav-toggle{display:flex;}
  .main-nav{
    position:absolute;
    top:100%;
    right:16px;
    left:16px;
    flex-direction:column;
    align-items:flex-end;
    gap:4px;
    background:rgba(16,14,36,.98);
    border:1px solid var(--line-strong);
    border-radius:18px;
    padding:14px;
    box-shadow:var(--shadow);
    opacity:0;
    visibility:hidden;
    transform:translateY(-10px);
    transition:opacity .22s ease,transform .22s ease,visibility .22s ease;
  }
  .main-nav.is-open{opacity:1;visibility:visible;transform:translateY(8px);}
  .main-nav .nav-link{width:100%;text-align:right;font-size:17px;padding:12px 14px;}
  .nav-link::after{left:auto;right:14px;width:36px;}
  .cta-card{grid-template-columns:1fr;padding:36px;}
  .cta-actions{justify-content:flex-start;}
  .related-grid{grid-template-columns:1fr;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px;}
}
@media (max-width:768px){
  body{font-size:16px;}
  .container{padding:0 20px;}
  .article-hero{padding:52px 0 46px;}
  .read-section{padding:40px 0 18px;}
  .read-card{padding:30px 22px;border-radius:20px;}
  .article-body{font-size:16.5px;line-height:1.9;}
  .article-body h2{font-size:21px;margin:34px 0 14px;}
  .article-body h3{font-size:18.5px;}
  .section{padding:62px 0;}
  .footer-grid{grid-template-columns:1fr;}
  .brand-text{font-size:15.5px;}
}
@media (max-width:520px){
  .nav-wrap{gap:12px;}
  .nav-actions .btn-sm{padding:9px 15px;font-size:13.5px;}
  .article-body h2{font-size:19.5px;}
  .cta-card{padding:28px 20px;}
  .bottom-actions .btn,.back-entry .btn{width:100%;}
  .related-card{flex-direction:row;}
}

/* roulang page: category1 */
:root{
  --bg:#0B0A1C;
  --bg-2:#14122B;
  --card:#1A1738;
  --line:rgba(255,255,255,.08);
  --line-strong:rgba(255,255,255,.16);
  --primary:#35E0C4;
  --violet:#7C4DFF;
  --gold:#FFB86B;
  --text:#EDECF7;
  --muted:#A9A6C8;
  --read-bg:#F7F6FD;
  --read-text:#1B1830;
  --radius-lg:24px;
  --radius:20px;
  --radius-sm:14px;
  --shadow:0 18px 40px rgba(0,0,0,.45);
  --shadow-hover:0 24px 56px rgba(0,0,0,.55);
  --grad:linear-gradient(135deg,#7C4DFF 0%,#35E0C4 100%);
  --glow:0 0 26px rgba(53,224,196,.35);
  --font:"PingFang SC","HarmonyOS Sans","Noto Sans SC","Microsoft YaHei",-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;
}

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

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

body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:var(--font);
  font-size:16px;
  line-height:1.85;
  letter-spacing:.01em;
  overflow-x:hidden;
}

body.foundation,
body{
  font-family:var(--font);
}

h1,h2,h3,h4,h5,p,ul,ol,figure{margin:0;}
ul,ol{padding:0;list-style:none;}
img{max-width:100%;display:block;border-radius:18px;}
a{color:inherit;text-decoration:none;transition:color .2s ease,border-color .2s ease,background .2s ease,transform .2s ease;}
a:focus-visible,button:focus-visible,input:focus-visible{
  outline:2px solid var(--primary);
  outline-offset:3px;
  border-radius:6px;
}
button{font-family:inherit;cursor:pointer;border:0;background:none;color:inherit;}

.container{
  width:100%;
  max-width:1240px;
  margin:0 auto;
  padding:0 20px;
}

.num{font-variant-numeric:tabular-nums;}

/* ---------- 顶部导航 ---------- */
.site-header{
  position:sticky;
  top:0;
  z-index:80;
  background:rgba(11,10,28,.88);
  backdrop-filter:blur(14px) saturate(140%);
  -webkit-backdrop-filter:blur(14px) saturate(140%);
  transition:padding .25s ease,background .25s ease,box-shadow .25s ease;
}
.site-header::after{
  content:"";
  position:absolute;
  left:0;right:0;bottom:0;
  height:1px;
  background:linear-gradient(90deg,rgba(124,77,255,0),rgba(53,224,196,.65),rgba(124,77,255,0));
}
.site-header.is-scrolled{background:rgba(11,10,28,.96);box-shadow:0 12px 30px rgba(0,0,0,.45);}
.site-header.is-scrolled .nav-wrap{padding-top:10px;padding-bottom:10px;}

.nav-wrap{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:24px;
  padding-top:18px;
  padding-bottom:18px;
  transition:padding .25s ease;
}

.brand{display:inline-flex;align-items:center;gap:10px;}
.brand .mark{width:26px;height:26px;flex:0 0 26px;}
.brand-text{
  font-size:17px;
  font-weight:700;
  letter-spacing:.02em;
  background:linear-gradient(135deg,#FFFFFF 20%,#B9F6EC 100%);
  -webkit-background-clip:text;
  background-clip:text;
  color:transparent;
  white-space:nowrap;
}

.main-nav{display:flex;align-items:center;gap:6px;margin-left:auto;}
.nav-link{
  position:relative;
  display:inline-block;
  padding:10px 16px;
  font-size:15px;
  color:var(--muted);
  border-radius:999px;
  white-space:nowrap;
}
.nav-link:hover{color:#fff;background:rgba(255,255,255,.05);}
.nav-link.is-active{color:#fff;text-shadow:0 0 14px rgba(53,224,196,.6);}
.nav-link.is-active::after{
  content:"";
  position:absolute;
  left:16px;right:16px;bottom:2px;
  height:2px;
  border-radius:2px;
  background:var(--grad);
  box-shadow:var(--glow);
}

.nav-actions{display:flex;align-items:center;gap:12px;}

.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  padding:13px 28px;
  font-size:15px;
  font-weight:600;
  line-height:1;
  border-radius:999px;
  border:1px solid transparent;
  transition:transform .2s ease,box-shadow .2s ease,background .2s ease,color .2s ease,border-color .2s ease;
  white-space:nowrap;
}
.btn-sm{padding:11px 22px;font-size:14px;}
.btn-primary{
  background:var(--grad);
  color:#0B0A1C;
  box-shadow:0 10px 26px rgba(53,224,196,.28);
}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 14px 32px rgba(53,224,196,.42);color:#0B0A1C;}
.btn-primary:active{transform:translateY(0);}
.btn-ghost{
  color:var(--text);
  border-color:var(--line-strong);
  background:rgba(255,255,255,.03);
  border-radius:var(--radius-sm);
}
.btn-ghost:hover{border-color:rgba(53,224,196,.6);color:#fff;box-shadow:0 0 20px rgba(53,224,196,.2);}
.btn-block{width:100%;}

.nav-toggle{
  display:none;
  flex-direction:column;
  justify-content:center;
  gap:5px;
  width:44px;
  height:44px;
  border-radius:12px;
  border:1px solid var(--line-strong);
  background:rgba(255,255,255,.04);
  padding:0 11px;
}
.nav-toggle span{
  display:block;
  height:2px;
  border-radius:2px;
  background:var(--text);
  transition:transform .25s ease,opacity .25s ease;
}
.nav-toggle.is-open span:nth-child(1){transform:translateY(7px) rotate(45deg);}
.nav-toggle.is-open span:nth-child(2){opacity:0;}
.nav-toggle.is-open span:nth-child(3){transform:translateY(-7px) rotate(-45deg);}

/* ---------- 页面横幅 ---------- */
.page-banner{
  position:relative;
  padding:132px 0 76px;
  background:
    linear-gradient(180deg,rgba(11,10,28,.78) 0%,rgba(11,10,28,.94) 78%,rgba(11,10,28,1) 100%),
    url("/assets/images/backpic/back-2.webp") center/cover no-repeat;
  overflow:hidden;
}
.page-banner::before{
  content:"";
  position:absolute;
  inset:0;
  background-image:radial-gradient(rgba(255,255,255,.55) 1px,transparent 1px);
  background-size:120px 120px;
  opacity:.07;
  pointer-events:none;
}
.banner-inner{position:relative;z-index:2;max-width:840px;}

.breadcrumb{
  display:flex;
  align-items:center;
  flex-wrap:wrap;
  gap:10px;
  font-size:13px;
  color:var(--muted);
  margin-bottom:20px;
}
.breadcrumb a:hover{color:var(--primary);}
.breadcrumb .sep{opacity:.5;}

.page-banner h1{
  font-size:clamp(28px,4.4vw,48px);
  font-weight:800;
  line-height:1.32;
  letter-spacing:.01em;
  margin-bottom:22px;
}
.page-banner h1 .grad{
  background:var(--grad);
  -webkit-background-clip:text;
  background-clip:text;
  color:transparent;
}

.banner-lead{
  font-size:16.5px;
  color:var(--muted);
  max-width:760px;
  line-height:1.95;
}

.badge-row{
  display:flex;
  flex-wrap:wrap;
  gap:12px;
  margin-top:30px;
}
.badge{
  display:inline-flex;
  align-items:center;
  gap:8px;
  padding:9px 18px;
  font-size:13.5px;
  color:var(--gold);
  background:rgba(255,184,107,.12);
  border:1px solid rgba(255,184,107,.28);
  border-radius:999px;
}
.badge i{font-size:12px;opacity:.9;}
.badge b{font-weight:700;font-variant-numeric:tabular-nums;}

/* ---------- 通用板块 ---------- */
.section{padding:96px 0;}
.section-tight{padding:72px 0;}

.section-head{max-width:760px;margin-bottom:48px;}
.section-head .eyebrow{
  display:inline-block;
  font-size:13px;
  letter-spacing:.16em;
  text-transform:uppercase;
  color:var(--primary);
  margin-bottom:14px;
}
.section-head h2{
  font-size:clamp(24px,3vw,34px);
  font-weight:700;
  line-height:1.4;
  margin-bottom:16px;
}
.section-head p{color:var(--muted);font-size:16px;}

/* ---------- 目录 + 条目列表 ---------- */
.guide-layout{
  display:grid;
  grid-template-columns:240px minmax(0,1fr);
  gap:56px;
  align-items:start;
}

.guide-aside{
  position:sticky;
  top:104px;
  padding:26px 22px;
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--radius);
  box-shadow:var(--shadow);
}
.aside-title{
  font-size:13px;
  letter-spacing:.14em;
  color:var(--muted);
  margin-bottom:16px;
}
.aside-list{display:flex;flex-direction:column;gap:2px;}
.aside-list a{
  position:relative;
  display:block;
  padding:10px 12px 10px 16px;
  font-size:14.5px;
  color:var(--muted);
  border-radius:10px;
}
.aside-list a::before{
  content:"";
  position:absolute;
  left:0;top:12px;bottom:12px;
  width:3px;
  border-radius:3px;
  background:transparent;
  transition:background .2s ease,box-shadow .2s ease;
}
.aside-list a:hover{color:#fff;background:rgba(255,255,255,.05);}
.aside-list a.is-active{
  color:#fff;
  background:rgba(53,224,196,.08);
}
.aside-list a.is-active::before{
  background:var(--grad);
  box-shadow:var(--glow);
}

.guide-main .main-title{
  font-size:clamp(20px,2.4vw,26px);
  font-weight:700;
  margin-bottom:8px;
}
.guide-main .main-sub{
  color:var(--muted);
  font-size:15px;
  margin-bottom:30px;
}

.entry-list{
  display:flex;
  flex-direction:column;
  border-top:1px solid var(--line);
}
.entry-item{
  border-bottom:1px solid var(--line);
  scroll-margin-top:120px;
}
.entry-item > a{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:24px;
  padding:24px 6px;
  transition:padding-left .22s ease,background .22s ease;
}
.entry-item > a:hover{padding-left:14px;background:rgba(255,255,255,.025);}
.entry-text h3{
  font-size:17.5px;
  font-weight:600;
  margin-bottom:6px;
  transition:color .2s ease;
}
.entry-item > a:hover .entry-text h3{color:var(--primary);}
.entry-text p{
  font-size:14.5px;
  color:var(--muted);
  line-height:1.75;
}
.entry-arrow{
  flex:0 0 auto;
  width:38px;height:38px;
  display:grid;
  place-items:center;
  border-radius:50%;
  border:1px solid var(--line-strong);
  color:var(--muted);
  transition:transform .22s ease,color .22s ease,border-color .22s ease,box-shadow .22s ease;
}
.entry-item > a:hover .entry-arrow{
  transform:translateX(4px);
  color:var(--primary);
  border-color:rgba(53,224,196,.6);
  box-shadow:var(--glow);
}

/* ---------- 图文块 ---------- */
.media-section{background:var(--bg-2);border-top:1px solid var(--line);border-bottom:1px solid var(--line);}
.media-block{margin-bottom:72px;}
.media-block:last-child{margin-bottom:0;}
.media-text h2{
  font-size:clamp(22px,2.6vw,30px);
  font-weight:700;
  line-height:1.42;
  margin-bottom:18px;
}
.media-text p{color:var(--muted);font-size:16px;margin-bottom:14px;}
.media-list{display:flex;flex-direction:column;gap:10px;margin-top:20px;}
.media-list li{
  display:flex;
  gap:10px;
  font-size:15px;
  color:var(--muted);
}
.media-list li i{color:var(--primary);font-size:12px;margin-top:7px;}

.media-pic{position:relative;}
.media-pic img{
  width:100%;
  height:340px;
  object-fit:cover;
  border-radius:var(--radius-lg);
  border:1px solid var(--line);
  box-shadow:var(--shadow);
}
.media-pic::after{
  content:"";
  position:absolute;
  inset:0;
  border-radius:var(--radius-lg);
  background:linear-gradient(160deg,rgba(124,77,255,.22),rgba(53,224,196,.08) 60%,transparent);
  pointer-events:none;
}
.media-float{
  position:absolute;
  left:20px;
  bottom:-22px;
  z-index:3;
  padding:12px 20px;
  font-size:13.5px;
  color:var(--gold);
  background:rgba(11,10,28,.92);
  border:1px solid rgba(255,184,107,.3);
  border-radius:999px;
  box-shadow:0 12px 28px rgba(0,0,0,.5);
}
.media-float b{font-variant-numeric:tabular-nums;}

/* ---------- FAQ ---------- */
.faq-list{max-width:900px;}
.faq-item{
  border:1px solid var(--line);
  border-radius:var(--radius);
  background:var(--card);
  margin-bottom:16px;
  overflow:hidden;
  transition:border-color .2s ease,box-shadow .2s ease;
}
.faq-item.is-open{
  border-color:rgba(53,224,196,.5);
  box-shadow:0 0 24px rgba(53,224,196,.16);
}
.faq-q{
  width:100%;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:20px;
  padding:22px 26px 22px 30px;
  text-align:left;
  position:relative;
  font-size:16.5px;
  font-weight:600;
  color:var(--text);
}
.faq-q::before{
  content:"";
  position:absolute;
  left:0;top:0;bottom:0;
  width:4px;
  background:var(--grad);
  opacity:.85;
}
.faq-item.is-open .faq-q::before{box-shadow:var(--glow);}
.faq-q .chev{
  flex:0 0 auto;
  width:30px;height:30px;
  display:grid;place-items:center;
  border-radius:50%;
  border:1px solid var(--line-strong);
  color:var(--muted);
  font-size:12px;
  transition:transform .18s ease,color .18s ease,border-color .18s ease;
}
.faq-item.is-open .chev{transform:rotate(180deg);color:var(--primary);border-color:rgba(53,224,196,.55);}
.faq-a{
  max-height:0;
  overflow:hidden;
  transition:max-height .28s ease;
}
.faq-a-inner{
  padding:0 30px 24px 30px;
  color:var(--muted);
  font-size:15.5px;
  line-height:1.9;
}

/* ---------- CTA ---------- */
.cta-card{
  position:relative;
  display:grid;
  grid-template-columns:minmax(0,1.2fr) minmax(0,.8fr);
  gap:40px;
  align-items:center;
  padding:52px 48px;
  border-radius:var(--radius-lg);
  background:linear-gradient(150deg,rgba(124,77,255,.16),rgba(53,224,196,.08) 70%);
  border:1px solid var(--line-strong);
  box-shadow:var(--shadow);
  overflow:hidden;
}
.cta-card::before{
  content:"";
  position:absolute;
  inset:0;
  border-radius:var(--radius-lg);
  padding:1px;
  background:var(--grad);
  -webkit-mask:linear-gradient(#000 0 0) content-box,linear-gradient(#000 0 0);
  mask:linear-gradient(#000 0 0) content-box,linear-gradient(#000 0 0);
  -webkit-mask-composite:xor;
  mask-composite:exclude;
  opacity:.75;
  pointer-events:none;
}
.cta-card h2{
  font-size:clamp(22px,2.6vw,30px);
  font-weight:700;
  line-height:1.42;
  margin-bottom:14px;
}
.cta-card p{color:var(--muted);font-size:15.5px;}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;justify-content:flex-end;}

/* ---------- 页脚 ---------- */
.site-footer{
  position:relative;
  background:var(--bg-2);
  padding-top:76px;
  margin-top:0;
}
.site-footer::before{
  content:"";
  position:absolute;
  top:0;left:0;right:0;
  height:1px;
  background:linear-gradient(90deg,rgba(124,77,255,0),rgba(53,224,196,.6),rgba(124,77,255,0));
}
.site-footer::after{
  content:"";
  position:absolute;
  top:0;left:0;right:0;
  height:180px;
  background-image:radial-gradient(rgba(255,255,255,.5) 1px,transparent 1px);
  background-size:110px 110px;
  opacity:.05;
  pointer-events:none;
}
.footer-grid{
  position:relative;
  z-index:2;
  display:grid;
  grid-template-columns:1.5fr 1fr 1fr 1fr;
  gap:44px;
  padding-bottom:56px;
}
.footer-brand .brand{margin-bottom:18px;}
.footer-brand p{color:var(--muted);font-size:14.5px;max-width:340px;}
.footer-col h4{
  font-size:15px;
  font-weight:700;
  margin-bottom:18px;
  color:#fff;
}
.footer-col ul{display:flex;flex-direction:column;gap:11px;}
.footer-col li{color:var(--muted);font-size:14.5px;}
.footer-col a{color:var(--muted);font-size:14.5px;}
.footer-col a:hover{color:var(--primary);text-decoration:underline;text-underline-offset:4px;}
.footer-bottom{
  position:relative;
  z-index:2;
  display:flex;
  flex-wrap:wrap;
  justify-content:space-between;
  gap:12px;
  padding-top:24px;
  padding-bottom:32px;
  border-top:1px solid var(--line);
}
.footer-bottom p{font-size:13.5px;color:var(--muted);}

/* ---------- 响应式 ---------- */
@media (max-width:1024px){
  .nav-toggle{display:flex;}
  .main-nav{
    position:fixed;
    top:0;
    right:0;
    height:100vh;
    width:min(340px,86vw);
    flex-direction:column;
    align-items:flex-end;
    justify-content:flex-start;
    gap:6px;
    margin-left:0;
    padding:104px 26px 40px;
    background:rgba(11,10,28,.98);
    border-left:1px solid var(--line);
    transform:translateX(100%);
    transition:transform .28s ease;
    z-index:70;
  }
  .main-nav.is-open{transform:translateX(0);}
  .main-nav .nav-link{
    font-size:19px;
    padding:14px 8px;
    text-align:right;
  }
  .main-nav .nav-link.is-active::after{left:auto;right:8px;width:26px;bottom:6px;}

  .guide-layout{grid-template-columns:1fr;gap:36px;}
  .guide-aside{position:static;}
  .aside-list{
    flex-direction:row;
    overflow-x:auto;
    gap:8px;
    padding-bottom:6px;
    -webkit-overflow-scrolling:touch;
  }
  .aside-list li{flex:0 0 auto;}
  .aside-list a{white-space:nowrap;padding:8px 14px;border:1px solid var(--line);border-radius:999px;}
  .aside-list a::before{display:none;}
  .aside-list a.is-active{border-color:rgba(53,224,196,.55);}

  .cta-card{grid-template-columns:1fr;padding:40px 32px;}
  .cta-actions{justify-content:flex-start;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:36px;}
}

@media (max-width:768px){
  .section{padding:64px 0;}
  .section-tight{padding:52px 0;}
  .page-banner{padding:110px 0 60px;}
  .media-pic img{height:260px;}
  .media-block{margin-bottom:56px;}
  .footer-grid{grid-template-columns:1fr;}
  .footer-brand p{max-width:none;}
}

@media (max-width:520px){
  .section{padding:48px 0;}
  .container{padding:0 18px;}
  .page-banner h1{font-size:26px;}
  .banner-lead{font-size:15.5px;}
  .entry-item > a{padding:20px 4px;gap:16px;}
  .entry-arrow{width:34px;height:34px;}
  .cta-card{padding:32px 22px;}
  .btn{padding:12px 22px;font-size:14.5px;}
  .faq-q{padding:18px 18px 18px 22px;font-size:15.5px;}
  .faq-a-inner{padding:0 22px 20px 22px;font-size:15px;}
  .media-pic img{height:220px;}
  .footer-bottom{flex-direction:column;}
}

/* roulang page: category2 */
:root{
  --bg:#0B0A1C;
  --surface:#14122B;
  --card:#1A1738;
  --line:rgba(255,255,255,.08);
  --line-strong:rgba(255,255,255,.18);
  --primary:#35E0C4;
  --accent:#7C4DFF;
  --gold:#FFB86B;
  --text:#EDECF7;
  --muted:#A9A6C8;
  --grad:linear-gradient(135deg,#7C4DFF 0%,#35E0C4 100%);
  --r-lg:24px;
  --r-md:20px;
  --r-sm:14px;
  --shadow:0 18px 40px rgba(0,0,0,.45);
  --shadow-hover:0 24px 56px rgba(0,0,0,.55);
  --container:1240px;
}

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

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

body{
  margin:0;
  font-family:"PingFang SC","HarmonyOS Sans","Noto Sans SC","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  font-size:16.5px;
  line-height:1.85;
  color:var(--text);
  background:
    radial-gradient(1200px 620px at 80% -12%, rgba(124,77,255,.26), transparent 62%),
    radial-gradient(900px 520px at 4% 6%, rgba(53,224,196,.15), transparent 64%),
    var(--bg);
  background-attachment:fixed;
  overflow-x:hidden;
}

body::before{
  content:"";
  position:fixed;
  inset:0;
  z-index:0;
  pointer-events:none;
  opacity:.16;
  background-image:
    radial-gradient(1px 1px at 24px 36px, rgba(255,255,255,.75), transparent 100%),
    radial-gradient(1px 1px at 168px 92px, rgba(255,255,255,.55), transparent 100%),
    radial-gradient(1px 1px at 300px 210px, rgba(53,224,196,.75), transparent 100%),
    radial-gradient(1px 1px at 92px 268px, rgba(255,255,255,.45), transparent 100%),
    radial-gradient(1px 1px at 236px 340px, rgba(124,77,255,.8), transparent 100%);
  background-size:360px 380px;
}

img{max-width:100%;display:block;border:0;}
a{color:inherit;text-decoration:none;transition:color .2s ease,opacity .2s ease;}
button{font-family:inherit;}
h1,h2,h3,h4{margin:0;line-height:1.28;font-weight:700;color:var(--text);}
p{margin:0;}
ul{margin:0;padding:0;list-style:none;}
:focus-visible{outline:2px solid var(--primary);outline-offset:3px;border-radius:6px;}

.container{
  width:100%;
  max-width:var(--container);
  margin:0 auto;
  padding:0 24px;
}
.container .row{
  max-width:none;
  margin-left:-1rem;
  margin-right:-1rem;
}
.container .row .column{
  padding-left:1rem;
  padding-right:1rem;
}

/* ---------- header ---------- */
.site-header{
  position:sticky;
  top:0;
  z-index:50;
  background:rgba(11,10,28,.88);
  -webkit-backdrop-filter:blur(14px);
  backdrop-filter:blur(14px);
  transition:padding .25s ease,background .25s ease;
}
.site-header::after{
  content:"";
  position:absolute;
  left:0;right:0;bottom:0;
  height:1px;
  background:linear-gradient(90deg,rgba(124,77,255,0),rgba(124,77,255,.75),rgba(53,224,196,.75),rgba(53,224,196,0));
}
.site-header.is-scrolled{background:rgba(9,8,22,.96);}
.site-header.is-scrolled .nav-wrap{min-height:64px;}

.nav-wrap{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:24px;
  min-height:74px;
  transition:min-height .25s ease;
}

.brand{display:inline-flex;align-items:center;gap:10px;flex:0 0 auto;}
.brand .mark{width:26px;height:26px;flex:0 0 auto;}
.brand-text{
  font-size:17px;
  font-weight:800;
  letter-spacing:.02em;
  background:linear-gradient(135deg,#FFFFFF 10%,#CFEBFF 45%,#8FF3E2 100%);
  -webkit-background-clip:text;
  background-clip:text;
  color:transparent;
  white-space:nowrap;
}

.main-nav{display:flex;align-items:center;gap:4px;}
.nav-link{
  position:relative;
  padding:10px 15px;
  font-size:15px;
  font-weight:600;
  color:var(--muted);
  border-radius:999px;
  transition:color .2s ease,background .2s ease;
}
.nav-link:hover{color:#fff;background:rgba(255,255,255,.04);}
.nav-link.is-active{color:#fff;text-shadow:0 0 16px rgba(53,224,196,.45);}
.nav-link.is-active::after{
  content:"";
  position:absolute;
  left:15px;right:15px;bottom:3px;
  height:2px;
  border-radius:2px;
  background:var(--grad);
  box-shadow:0 0 12px rgba(53,224,196,.65);
}

.nav-actions{display:flex;align-items:center;gap:12px;flex:0 0 auto;}

.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  padding:14px 30px;
  font-size:16px;
  font-weight:700;
  line-height:1;
  border-radius:999px;
  border:1px solid transparent;
  cursor:pointer;
  transition:transform .22s ease,box-shadow .22s ease,background .22s ease,border-color .22s ease,color .22s ease;
}
.btn-primary{
  background:var(--grad);
  color:#07131F;
  box-shadow:0 12px 30px rgba(53,224,196,.26);
}
.btn-primary:hover,.btn-primary:focus{
  transform:translateY(-2px);
  color:#06111F;
  box-shadow:0 18px 40px rgba(53,224,196,.42);
}
.btn-ghost{
  background:transparent;
  color:var(--text);
  border-color:var(--line-strong);
  border-radius:14px;
}
.btn-ghost:hover,.btn-ghost:focus{
  border-color:rgba(53,224,196,.55);
  background:rgba(53,224,196,.08);
  color:#fff;
  transform:translateY(-2px);
}
.btn-sm{padding:10px 20px;font-size:14px;border-radius:999px;}

.nav-toggle{
  display:none;
  width:44px;height:44px;
  padding:0;
  background:rgba(255,255,255,.05);
  border:1px solid var(--line-strong);
  border-radius:12px;
  cursor:pointer;
  flex-direction:column;
  align-items:center;
  justify-content:center;
  gap:5px;
}
.nav-toggle span{
  display:block;
  width:18px;height:2px;
  background:var(--text);
  border-radius:2px;
  transition:transform .25s ease,opacity .25s ease;
}
.nav-toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(7px) rotate(45deg);}
.nav-toggle[aria-expanded="true"] span:nth-child(2){opacity:0;}
.nav-toggle[aria-expanded="true"] span:nth-child(3){transform:translateY(-7px) rotate(-45deg);}

/* ---------- hero ---------- */
.page-hero{
  position:relative;
  overflow:hidden;
  padding:76px 0 68px;
  border-bottom:1px solid var(--line);
}
.page-hero .hero-bg{
  position:absolute;
  inset:0;
  background-size:cover;
  background-position:center;
  opacity:.30;
}
.page-hero::after{
  content:"";
  position:absolute;
  inset:0;
  background:linear-gradient(180deg,rgba(11,10,28,.72) 0%,rgba(11,10,28,.94) 70%,rgba(11,10,28,1) 100%);
}
.page-hero .container{position:relative;z-index:2;}

.breadcrumb{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:8px;
  font-size:13.5px;
  color:var(--muted);
  margin-bottom:22px;
}
.breadcrumb a{color:var(--muted);}
.breadcrumb a:hover{color:var(--primary);}
.breadcrumb .sep{opacity:.5;}

.eyebrow{
  display:inline-flex;
  align-items:center;
  gap:8px;
  padding:7px 16px;
  margin-bottom:20px;
  font-size:13.5px;
  font-weight:700;
  letter-spacing:.06em;
  color:var(--primary);
  border:1px solid rgba(53,224,196,.32);
  border-radius:999px;
  background:rgba(53,224,196,.08);
}

.page-hero h1{
  font-size:clamp(30px,4.4vw,50px);
  font-weight:800;
  letter-spacing:-.01em;
  max-width:900px;
}
.grad-text{
  background:var(--grad);
  -webkit-background-clip:text;
  background-clip:text;
  color:transparent;
}
.page-hero .lead{
  max-width:800px;
  margin-top:22px;
  font-size:17px;
  color:#C6C3E2;
}

.hero-meta{
  display:flex;
  flex-wrap:wrap;
  gap:12px;
  margin-top:30px;
}
.badge{
  display:inline-flex;
  align-items:center;
  gap:8px;
  padding:9px 18px;
  font-size:14px;
  color:var(--gold);
  background:rgba(255,184,107,.12);
  border:1px solid rgba(255,184,107,.26);
  border-radius:999px;
  font-variant-numeric:tabular-nums;
}
.badge b{font-size:16px;font-weight:800;color:#FFD3A3;}

.hero-actions{
  display:flex;
  flex-wrap:wrap;
  gap:14px;
  margin-top:32px;
}

/* ---------- section ---------- */
.section{padding:96px 0;position:relative;}
.section.tight{padding-top:72px;}
.section-line{border-top:1px solid var(--line);}

.section-head{
  display:flex;
  align-items:flex-end;
  justify-content:space-between;
  gap:28px;
  flex-wrap:wrap;
  margin-bottom:40px;
}
.section-head h2{
  font-size:clamp(24px,3.1vw,34px);
  font-weight:700;
  letter-spacing:-.01em;
}
.section-head .sub{
  margin-top:12px;
  max-width:760px;
  color:var(--muted);
  font-size:16px;
}
.section-head .side-link{
  font-size:15px;
  font-weight:700;
  color:var(--primary);
  white-space:nowrap;
}
.section-head .side-link:hover{color:#8FF3E2;}

/* ---------- tabs ---------- */
.tab-strip{
  position:relative;
  display:flex;
  align-items:center;
  gap:6px;
  border-bottom:1px solid var(--line);
  margin-bottom:38px;
}
.tab-btn{
  position:relative;
  padding:14px 20px 18px;
  background:none;
  border:0;
  font-size:16px;
  font-weight:700;
  color:var(--muted);
  white-space:nowrap;
  cursor:pointer;
  transition:color .2s ease;
}
.tab-btn:hover{color:var(--text);}
.tab-btn.is-active{color:#fff;text-shadow:0 0 18px rgba(53,224,196,.5);}
.tab-indicator{
  position:absolute;
  left:0;
  bottom:-1px;
  width:0;
  height:2px;
  border-radius:2px;
  background:var(--grad);
  box-shadow:0 0 16px rgba(53,224,196,.7);
  transition:transform .3s cubic-bezier(.4,0,.2,1),width .3s cubic-bezier(.4,0,.2,1);
  pointer-events:none;
}

.tab-panel{display:none;}
.tab-panel.is-active{display:block;animation:fadeUp .36s ease both;}
@keyframes fadeUp{
  from{opacity:0;transform:translateY(12px);}
  to{opacity:1;transform:translateY(0);}
}

/* ---------- matrix cards ---------- */
.matrix-row{margin-bottom:-28px;}
.matrix-row > .column{margin-bottom:28px;}

.matrix-card{
  position:relative;
  display:flex;
  flex-direction:column;
  gap:14px;
  height:100%;
  padding:30px;
  border:1px solid var(--line);
  border-radius:var(--r-lg);
  background:linear-gradient(180deg,#1B1838 0%,#161433 100%);
  box-shadow:var(--shadow);
  overflow:hidden;
  transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease;
}
.matrix-card:hover{
  transform:translateY(-4px);
  border-color:rgba(53,224,196,.45);
  box-shadow:var(--shadow-hover);
}
.matrix-thumb{
  border-radius:var(--r-sm);
  overflow:hidden;
  aspect-ratio:16/9;
  background:#0F0E22;
  border:1px solid var(--line);
}
.matrix-thumb img{
  width:100%;height:100%;
  object-fit:cover;
  transition:transform .45s ease;
}
.matrix-card:hover .matrix-thumb img{transform:scale(1.05);}

.card-top{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:14px;
}
.tag{
  display:inline-flex;
  align-items:center;
  padding:5px 13px;
  font-size:12.5px;
  font-weight:700;
  letter-spacing:.04em;
  color:var(--primary);
  background:rgba(53,224,196,.1);
  border:1px solid rgba(53,224,196,.28);
  border-radius:999px;
}
.card-index{
  font-size:14px;
  font-weight:800;
  color:var(--gold);
  font-variant-numeric:tabular-nums;
  letter-spacing:.08em;
}
.matrix-card h3{
  font-size:21px;
  font-weight:700;
}
.matrix-card p{
  color:var(--muted);
  font-size:15.5px;
  line-height:1.85;
}
.card-foot{
  margin-top:auto;
  padding-top:12px;
  font-size:14px;
  font-weight:700;
  color:var(--primary);
  display:inline-flex;
  align-items:center;
  gap:6px;
}
.card-foot .arrow{transition:transform .22s ease;}
.matrix-card:hover .card-foot .arrow{transform:translateX(4px);}

/* ---------- flow ---------- */
.flow{display:grid;gap:16px;}
.flow-item{
  display:grid;
  grid-template-columns:58px 1fr;
  gap:22px;
  align-items:start;
  padding:24px 28px;
  border:1px solid var(--line);
  border-radius:var(--r-md);
  background:rgba(20,18,43,.72);
  transition:border-color .25s ease,background .25s ease,transform .25s ease;
}
.flow-item:hover{
  border-color:rgba(124,77,255,.5);
  background:rgba(26,23,56,.92);
  transform:translateY(-3px);
}
.flow-num{
  width:46px;height:46px;
  display:grid;
  place-items:center;
  border-radius:14px;
  background:var(--grad);
  color:#07131F;
  font-weight:800;
  font-size:17px;
  font-variant-numeric:tabular-nums;
  box-shadow:0 10px 24px rgba(53,224,196,.25);
}
.flow-item h3{font-size:19px;margin-bottom:6px;}
.flow-item p{color:var(--muted);font-size:15.5px;}

/* ---------- mini cards ---------- */
.mini-card{
  height:100%;
  padding:30px;
  border:1px solid var(--line);
  border-radius:var(--r-md);
  background:rgba(20,18,43,.6);
  transition:border-color .25s ease,transform .25s ease,background .25s ease;
}
.mini-card:hover{
  transform:translateY(-4px);
  border-color:rgba(53,224,196,.4);
  background:rgba(26,23,56,.88);
}
.mini-card .mini-icon{
  width:44px;height:44px;
  display:grid;
  place-items:center;
  border-radius:13px;
  margin-bottom:18px;
  font-size:18px;
  font-weight:800;
  color:#07131F;
  background:var(--grad);
  font-variant-numeric:tabular-nums;
}
.mini-card h3{font-size:19px;margin-bottom:10px;}
.mini-card p{color:var(--muted);font-size:15.5px;}

/* ---------- badge band + cta ---------- */
.badge-band{
  display:flex;
  flex-wrap:wrap;
  justify-content:center;
  gap:14px;
  margin-bottom:40px;
}
.cta-card{
  position:relative;
  padding:52px 44px;
  text-align:center;
  border-radius:var(--r-lg);
  border:1px solid rgba(53,224,196,.3);
  background:
    linear-gradient(135deg,rgba(124,77,255,.22) 0%,rgba(53,224,196,.14) 100%),
    #14122B;
  box-shadow:0 24px 60px rgba(0,0,0,.5);
  overflow:hidden;
}
.cta-card::before{
  content:"";
  position:absolute;
  inset:-40% 30% auto;
  height:220px;
  background:radial-gradient(circle,rgba(53,224,196,.22),transparent 70%);
  pointer-events:none;
}
.cta-card h2{
  position:relative;
  font-size:clamp(23px,2.8vw,32px);
  margin-bottom:16px;
}
.cta-card p{
  position:relative;
  max-width:720px;
  margin:0 auto 30px;
  color:#C6C3E2;
  font-size:16px;
}
.cta-card .btn{position:relative;}

/* ---------- footer ---------- */
.site-footer{
  position:relative;
  z-index:1;
  margin-top:20px;
  padding:72px 0 34px;
  background:linear-gradient(180deg,rgba(11,10,28,.4) 0%,rgba(8,7,19,.96) 100%);
}
.site-footer::before{
  content:"";
  position:absolute;
  top:0;left:0;right:0;
  height:1px;
  background:linear-gradient(90deg,rgba(124,77,255,0),rgba(124,77,255,.7),rgba(53,224,196,.7),rgba(53,224,196,0));
}
.footer-grid{
  display:grid;
  grid-template-columns:1.6fr 1fr 1fr 1.1fr;
  gap:40px;
}
.footer-brand .brand{margin-bottom:18px;}
.footer-brand p{
  color:var(--muted);
  font-size:14.5px;
  line-height:1.9;
  max-width:360px;
}
.footer-col h4{
  font-size:15px;
  font-weight:700;
  letter-spacing:.04em;
  margin-bottom:18px;
  color:#fff;
}
.footer-col ul li{
  margin-bottom:11px;
  color:var(--muted);
  font-size:14.5px;
}
.footer-col ul li a{color:var(--muted);}
.footer-col ul li a:hover{color:var(--primary);text-decoration:underline;text-underline-offset:4px;}

.footer-bottom{
  display:flex;
  flex-wrap:wrap;
  justify-content:space-between;
  gap:12px;
  margin-top:52px;
  padding-top:24px;
  border-top:1px solid var(--line);
  font-size:13.5px;
  color:#8B88AC;
}

/* ---------- responsive ---------- */
@media (max-width:1024px){
  .section{padding:64px 0;}
  .section.tight{padding-top:52px;}
  .page-hero{padding:56px 0 50px;}

  .nav-toggle{display:flex;}
  .main-nav{
    position:fixed;
    top:74px;
    right:0;
    bottom:0;
    width:min(84vw,360px);
    flex-direction:column;
    align-items:flex-end;
    justify-content:flex-start;
    gap:8px;
    padding:34px 26px;
    background:rgba(10,9,24,.98);
    border-left:1px solid var(--line);
    box-shadow:-24px 0 60px rgba(0,0,0,.6);
    transform:translateX(102%);
    transition:transform .32s cubic-bezier(.4,0,.2,1);
    z-index:60;
    overflow-y:auto;
  }
  .main-nav.is-open{transform:translateX(0);}
  .main-nav .nav-link{
    width:100%;
    text-align:right;
    font-size:19px;
    padding:15px 8px;
    border-radius:12px;
  }
  .main-nav .nav-link.is-active::after{left:auto;right:8px;width:26px;bottom:8px;}

  .footer-grid{grid-template-columns:1fr 1fr;gap:34px;}
}

@media (max-width:768px){
  body{font-size:16px;}
  .container{padding:0 20px;}
  .container .row{margin-left:-10px;margin-right:-10px;}
  .container .row .column{padding-left:10px;padding-right:10px;}

  .section{padding:48px 0;}
  .section.tight{padding-top:40px;}
  .page-hero{padding:44px 0 40px;}
  .page-hero .lead{font-size:16px;}

  .matrix-card{padding:24px;}
  .flow-item{grid-template-columns:1fr;gap:14px;padding:22px;}
  .cta-card{padding:36px 22px;}

  .footer-grid{grid-template-columns:1fr;gap:30px;}
  .footer-bottom{flex-direction:column;gap:8px;}
  .badge-band{gap:10px;}
  .badge{font-size:13px;padding:8px 14px;}
}

@media (max-width:520px){
  .brand-text{font-size:15px;}
  .nav-wrap{gap:12px;min-height:66px;}
  .main-nav{top:66px;width:88vw;}
  .btn{padding:13px 22px;font-size:15px;}
  .btn-sm{padding:9px 16px;font-size:13.5px;}
  .tab-btn{padding:12px 12px 16px;font-size:15px;}
  .hero-actions{flex-direction:column;align-items:stretch;}
  .hero-actions .btn{width:100%;}
  .matrix-card h3{font-size:19px;}
}