/* roulang page: index */
:root{
  --bg:#0C0B14;
  --surface:#141222;
  --card:#16142A;
  --primary:#6C4CFF;
  --primary-deep:#5438E0;
  --accent:#FF8A3D;
  --mint:#2BE3C0;
  --text:#F2F1F7;
  --text-2:#A8A5BD;
  --text-3:#6E6B85;
  --border:rgba(255,255,255,.08);
  --radius-card:16px;
  --radius-btn:12px;
  --shadow-card:0 8px 28px rgba(0,0,0,.35);
  --shadow-hover:0 14px 40px rgba(108,76,255,.18);
  --ease:cubic-bezier(.4,0,.2,1);
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei","Noto Sans SC","Helvetica Neue",Arial,sans-serif;
  font-size:16px;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
  padding-bottom:120px;
  overflow-x:hidden;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
button{font:inherit;cursor:pointer;border:0;background:none;color:inherit}
input,select,textarea{font:inherit}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4,p{margin:0}
:focus-visible{outline:2px solid var(--primary);outline-offset:2px;border-radius:4px}
.container-x{width:100%;max-width:1200px;margin:0 auto;padding:0 20px}

/* 背景装饰 */
.bg-grid{
  background-image:linear-gradient(rgba(255,255,255,.032) 1px,transparent 1px),
                   linear-gradient(90deg,rgba(255,255,255,.032) 1px,transparent 1px);
  background-size:46px 46px;
}
.glow{position:absolute;border-radius:50%;filter:blur(110px);opacity:.16;pointer-events:none;z-index:0}

/* 顶栏 */
.topbar{background:#0A0912;border-bottom:1px solid var(--border);font-size:13px;color:var(--text-2)}
.topbar a{color:var(--text-2);transition:color .2s var(--ease)}
.topbar a:hover{color:var(--primary)}

/* 导航 */
.site-header{
  position:sticky;top:0;z-index:40;
  background:rgba(12,11,20,.92);
  backdrop-filter:blur(14px);
  border-bottom:1px solid var(--border);
}
.nav-link{
  position:relative;display:inline-block;
  font-size:15px;line-height:1;color:var(--text-2);
  padding:9px 2px;white-space:nowrap;
  transition:color .2s var(--ease);
}
.nav-link:hover{color:var(--text)}
.nav-link.active{color:var(--text);font-weight:600}
.nav-link.active::after{
  content:"";position:absolute;left:0;right:0;bottom:-2px;height:3px;
  border-radius:3px;background:var(--primary);
}
.nav-search{
  display:flex;align-items:center;gap:8px;
  flex:1;max-width:470px;min-width:280px;height:44px;
  background:#0F0E1B;border:1px solid var(--border);
  border-radius:999px;padding:0 5px 0 16px;
  transition:border-color .2s var(--ease),box-shadow .2s var(--ease);
}
.nav-search:focus-within{
  border-color:var(--primary);
  box-shadow:0 0 0 4px rgba(108,76,255,.16);
}
.nav-search input{
  flex:1;min-width:0;background:transparent;border:0;outline:none;
  color:var(--text);font-size:14px;
}
.nav-search input::placeholder{color:var(--text-3)}
.search-btn{
  height:34px;padding:0 18px;border-radius:999px;
  background:var(--primary);color:#fff;font-size:14px;font-weight:600;
  transition:background .2s var(--ease),transform .2s var(--ease);
}
.search-btn:hover{background:var(--primary-deep)}
.search-btn:active{transform:scale(.98)}
.burger{
  width:44px;height:44px;border-radius:12px;
  border:1px solid var(--border);display:inline-flex;
  align-items:center;justify-content:center;
  transition:border-color .2s var(--ease),background .2s var(--ease);
}
.burger:hover{border-color:var(--primary);background:rgba(108,76,255,.1)}
.mobile-panel{display:none;border-top:1px solid var(--border);background:#0F0E1B}
.mobile-panel.open{display:block}

/* 按钮 */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:44px;padding:0 22px;border-radius:var(--radius-btn);
  font-size:15px;font-weight:600;border:1px solid transparent;
  transition:all .2s var(--ease);white-space:nowrap;
}
.btn-sm{height:36px;padding:0 16px;font-size:14px}
.btn-primary{background:var(--primary);color:#fff}
.btn-primary:hover{
  background:linear-gradient(135deg,var(--primary),var(--accent));
  transform:translateY(-2px);
  box-shadow:0 12px 28px rgba(108,76,255,.32);
}
.btn-ghost{border-color:rgba(255,255,255,.18);color:var(--text)}
.btn-ghost:hover{border-color:var(--primary);background:rgba(108,76,255,.1)}
.btn-link{
  height:auto;padding:0;color:var(--primary);font-weight:600;
  font-size:14px;background:none;
}
.btn-link:hover{text-decoration:underline}
.btn:active{transform:scale(.98)}

/* 卡片与徽章 */
.card{
  background:var(--card);border:1px solid var(--border);
  border-radius:var(--radius-card);box-shadow:var(--shadow-card);
  transition:all .2s var(--ease);
}
.card:hover{
  border-color:rgba(108,76,255,.4);
  transform:translateY(-3px);
  box-shadow:var(--shadow-hover);
}
.badge{
  display:inline-flex;align-items:center;height:24px;padding:0 9px;
  border-radius:6px;font-size:12px;font-weight:500;line-height:1;
  background:rgba(108,76,255,.16);color:#BCACFF;
  border:1px solid rgba(108,76,255,.3);
}
.badge-mint{background:rgba(43,227,192,.12);color:var(--mint);border-color:rgba(43,227,192,.3)}
.badge-accent{background:rgba(255,138,61,.12);color:var(--accent);border-color:rgba(255,138,61,.3)}
.divider{height:1px;background:var(--border);border:0}

/* 首屏 */
.hero{
  position:relative;overflow:hidden;
  min-height:600px;display:flex;align-items:center;
  padding:72px 0 84px;
}
.hero-visual{
  position:relative;border-radius:20px;overflow:hidden;
  border:1px solid rgba(255,255,255,.12);
  background:#0F0E1B;aspect-ratio:4/3;
  box-shadow:0 20px 50px rgba(0,0,0,.45);
}
.hero-visual img{width:100%;height:100%;object-fit:cover}
.hero-float{
  position:absolute;right:18px;bottom:18px;
  display:inline-flex;align-items:center;gap:8px;
  padding:10px 14px;border-radius:12px;
  background:rgba(12,11,20,.82);backdrop-filter:blur(10px);
  border:1px solid rgba(108,76,255,.4);
  font-size:13px;color:var(--text);
}
.trust-item{display:inline-flex;align-items:center;gap:8px;font-size:14px;color:var(--text-2)}
.trust-dot{
  width:8px;height:8px;border-radius:50%;background:var(--mint);
  box-shadow:0 0 0 4px rgba(43,227,192,.14);flex:none;
}

/* 卖点 */
.feature-main{
  position:relative;overflow:hidden;
  border-radius:var(--radius-card);
  border:1px solid rgba(108,76,255,.35);
  background:linear-gradient(150deg,rgba(108,76,255,.55),rgba(20,18,34,.95) 62%);
  padding:38px 34px;min-height:100%;
  transition:all .2s var(--ease);
}
.feature-main:hover{transform:translateY(-3px);box-shadow:0 14px 40px rgba(108,76,255,.22)}
.feature-num{
  font-size:64px;line-height:1;font-weight:800;
  letter-spacing:-2px;color:rgba(255,255,255,.16);
}
.feature-num-sm{
  font-size:36px;line-height:1;font-weight:800;
  color:rgba(255,138,61,.55);
}

/* 信息卡 */
.info-card{
  display:flex;flex-direction:column;overflow:hidden;
  background:var(--card);border:1px solid var(--border);
  border-radius:var(--radius-card);
  transition:all .2s var(--ease);
}
.info-card:hover{
  border-color:rgba(108,76,255,.4);
  transform:translateY(-3px);
  box-shadow:var(--shadow-hover);
}
.info-cover{aspect-ratio:16/9;background:#0F0E1B;overflow:hidden}
.info-cover img{width:100%;height:100%;object-fit:cover;transition:transform .35s var(--ease)}
.info-card:hover .info-cover img{transform:scale(1.03)}
.clamp-2{display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}

/* 空态 */
.empty-state{
  padding:64px 24px;text-align:center;
  border:1px dashed rgba(255,255,255,.14);
  border-radius:var(--radius-card);background:rgba(20,18,34,.6);
}

/* 流程 */
.step-item{position:relative;padding-top:8px}
.step-dot{
  width:44px;height:44px;border-radius:50%;
  display:flex;align-items:center;justify-content:center;
  font-weight:700;font-size:16px;
  background:rgba(255,138,61,.14);color:var(--accent);
  border:1px solid rgba(255,138,61,.4);
}
.step-line{
  position:absolute;top:30px;left:56px;right:-24px;
  border-top:1px dashed rgba(255,255,255,.16);
}

/* 社会认同 */
.stat-num{
  font-size:44px;line-height:1.05;font-weight:800;letter-spacing:-1px;
  background:linear-gradient(120deg,#F2F1F7,rgba(43,227,192,.9));
  -webkit-background-clip:text;background-clip:text;color:transparent;
}
.avatar{
  width:38px;height:38px;border-radius:50%;
  display:flex;align-items:center;justify-content:center;
  font-size:15px;font-weight:700;color:#0C0B14;
  background:linear-gradient(140deg,var(--mint),#8BE9FF);flex:none;
}
.stars{display:inline-flex;gap:3px;color:var(--accent);font-size:13px;letter-spacing:1px}

/* FAQ */
.faq-item{
  background:var(--surface);border:1px solid var(--border);
  border-radius:var(--radius-card);overflow:hidden;
  transition:border-color .2s var(--ease),background .2s var(--ease);
}
.faq-item.open{border-color:rgba(108,76,255,.36);background:#181530}
.faq-q{
  display:flex;align-items:center;gap:12px;width:100%;
  padding:17px 20px;text-align:left;font-size:16px;font-weight:600;
  color:var(--text);
}
.faq-q::before{
  content:"";width:4px;height:18px;border-radius:2px;
  background:var(--primary);flex:none;
}
.faq-a{max-height:0;overflow:hidden;transition:max-height .3s var(--ease)}
.faq-item.open .faq-a{max-height:320px}
.faq-a-inner{padding:0 20px 20px 36px;color:var(--text-2);font-size:15px;line-height:1.8}
.faq-arrow{margin-left:auto;flex:none;color:var(--text-3);transition:transform .25s var(--ease)}
.faq-item.open .faq-arrow{transform:rotate(180deg);color:var(--primary)}

/* 底部固定转化条 */
.sticky-cta{
  position:fixed;left:0;right:0;bottom:0;z-index:60;
  background:rgba(12,11,20,.94);backdrop-filter:blur(14px);
  border-top:1px solid var(--border);
  box-shadow:0 -6px 24px rgba(0,0,0,.4);
  transform:translateY(110%);
  transition:transform .32s var(--ease);
}
.sticky-cta.show{transform:translateY(0)}

/* 页脚 */
.site-footer{background:#0A0912;border-top:1px solid var(--border)}
.foot-link{
  display:inline-block;color:var(--text-2);font-size:14px;
  line-height:2.1;transition:color .2s var(--ease);
}
.foot-link:hover{color:var(--primary)}
.foot-title{font-size:14px;font-weight:600;color:var(--text);letter-spacing:.4px}
.logo-mark{
  width:38px;height:38px;border-radius:11px;flex:none;
  display:flex;align-items:center;justify-content:center;
  font-size:18px;font-weight:800;color:#fff;
  background:linear-gradient(135deg,var(--primary),var(--accent));
}

/* 响应式 */
@media (max-width:1279px){
  .nav-search{max-width:380px;min-width:220px}
}
@media (max-width:1023px){
  .desktop-nav{display:none !important}
  .desktop-search{display:none !important}
  .hero{min-height:auto;padding:56px 0 64px}
  .step-line{display:none}
  body{padding-bottom:104px}
}
@media (max-width:639px){
  .container-x{padding:0 16px}
  .hero{padding:40px 0 56px}
  .feature-main{padding:28px 22px}
  .feature-num{font-size:48px}
  .stat-num{font-size:36px}
  .btn{height:42px;padding:0 18px;font-size:14px}
  body{padding-bottom:96px}
  .sticky-cta .sticky-text{font-size:13px}
}

/* roulang page: article */
:root{
    --bg:#0C0B14;
    --surface:#141222;
    --card:#16142A;
    --primary:#6C4CFF;
    --primary-d:#5438E0;
    --accent:#FF8A3D;
    --mint:#2BE3C0;
    --text-1:#F2F1F7;
    --text-2:#A8A5BD;
    --text-3:#6E6B85;
    --border:rgba(255,255,255,.08);
    --radius-card:16px;
    --radius-btn:12px;
    --shadow-card:0 8px 28px rgba(0,0,0,.35);
    --shadow-hover:0 14px 40px rgba(108,76,255,.18);
    --ease:cubic-bezier(.4,0,.2,1);
    --container:1200px;
  }
  *,*::before,*::after{box-sizing:border-box;}
  html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
  body{
    margin:0;
    background:var(--bg);
    color:var(--text-1);
    font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Microsoft YaHei","Noto Sans SC",sans-serif;
    font-size:16px;
    line-height:1.75;
    -webkit-font-smoothing:antialiased;
  }
  body::before{
    content:"";
    position:fixed;
    inset:0;
    pointer-events:none;
    z-index:0;
    background-image:linear-gradient(rgba(255,255,255,.022) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.022) 1px,transparent 1px);
    background-size:52px 52px;
  }
  img{max-width:100%;display:block;height:auto;}
  a{color:inherit;text-decoration:none;}
  button{font:inherit;}
  ul,ol{margin:0;padding:0;list-style:none;}
  h1,h2,h3,h4,p{margin:0;}
  :focus-visible{outline:2px solid var(--primary);outline-offset:2px;border-radius:6px;}

  .container-x{width:100%;max-width:var(--container);margin:0 auto;padding-left:20px;padding-right:20px;position:relative;z-index:1;}

  /* ---------- header ---------- */
  .site-header{
    position:sticky;top:0;z-index:60;
    background:rgba(12,11,20,.92);
    backdrop-filter:blur(14px);
    -webkit-backdrop-filter:blur(14px);
    border-bottom:1px solid var(--border);
  }
  .logo-mark{
    width:36px;height:36px;flex:none;border-radius:10px;
    display:grid;place-items:center;
    font-weight:800;font-size:17px;color:#fff;
    background:linear-gradient(135deg,var(--primary),var(--accent));
    box-shadow:0 6px 18px rgba(108,76,255,.35);
  }
  .nav-link{
    font-size:15px;color:var(--text-2);position:relative;padding:6px 0;
    transition:color .2s var(--ease);white-space:nowrap;
  }
  .nav-link:hover{color:var(--text-1);}
  .nav-link.active{color:#fff;}
  .nav-link.active::after{
    content:"";position:absolute;left:0;right:0;bottom:-6px;height:3px;border-radius:2px;background:var(--primary);
  }
  .nav-search{
    display:flex;align-items:center;gap:8px;
    background:var(--card);
    border:1px solid var(--border);
    border-radius:999px;
    padding:5px 5px 5px 14px;
    flex:1 1 auto;min-width:0;max-width:520px;
    transition:border-color .2s var(--ease),box-shadow .2s var(--ease);
  }
  .nav-search:focus-within{border-color:rgba(108,76,255,.7);box-shadow:0 0 0 3px rgba(108,76,255,.18);}
  .nav-search input{
    flex:1 1 auto;min-width:0;background:transparent;border:0;outline:none;
    color:var(--text-1);font-size:14px;padding:6px 0;
  }
  .nav-search input::placeholder{color:var(--text-3);}
  .search-btn{
    flex:none;border:0;cursor:pointer;
    background:var(--primary);color:#fff;
    border-radius:999px;padding:8px 18px;font-size:14px;font-weight:600;
    transition:background .2s var(--ease),transform .15s var(--ease);
  }
  .search-btn:hover{background:var(--primary-d);}
  .search-btn:active{transform:scale(.98);}
  @media (min-width:1024px){
    .desktop-search{min-width:420px;}
  }
  .btn{
    display:inline-flex;align-items:center;justify-content:center;gap:8px;
    height:44px;padding:0 22px;border-radius:var(--radius-btn);
    font-size:15px;font-weight:600;cursor:pointer;border:1px solid transparent;
    transition:all .2s var(--ease);
  }
  .btn-sm{height:36px;padding:0 16px;font-size:14px;}
  .btn-primary{background:var(--primary);color:#fff;}
  .btn-primary:hover{background:linear-gradient(135deg,var(--primary),var(--mint));transform:translateY(-2px);box-shadow:0 12px 28px rgba(108,76,255,.35);}
  .btn-ghost{background:transparent;border-color:var(--border);color:var(--text-1);}
  .btn-ghost:hover{border-color:rgba(108,76,255,.65);color:#fff;transform:translateY(-2px);}
  .btn:active{transform:scale(.98);}
  .burger{
    width:42px;height:42px;border-radius:12px;display:grid;place-items:center;
    background:transparent;border:1px solid var(--border);color:var(--text-1);cursor:pointer;
    transition:border-color .2s var(--ease);
  }
  .burger:hover{border-color:rgba(108,76,255,.6);}
  .mobile-panel{display:none;border-top:1px solid var(--border);background:rgba(20,18,34,.98);}
  .mobile-panel.open{display:block;}
  .mnav-link{
    display:block;padding:12px 2px;font-size:15px;color:var(--text-2);
    border-bottom:1px solid var(--border);transition:color .2s var(--ease);
  }
  .mnav-link:hover,.mnav-link.active{color:#fff;}

  /* ---------- article head ---------- */
  .article-head{
    position:relative;
    background-image:linear-gradient(180deg,rgba(12,11,20,.82),rgba(12,11,20,.96)),url('/assets/images/backpic/back-2.png');
    background-size:cover;
    background-position:center;
    border-bottom:1px solid var(--border);
    overflow:hidden;
  }
  .article-head::after{
    content:"";position:absolute;width:420px;height:420px;right:-120px;top:-180px;
    background:radial-gradient(circle,rgba(108,76,255,.35),transparent 70%);
    filter:blur(90px);pointer-events:none;
  }
  .breadcrumb{font-size:13px;color:var(--text-3);display:flex;flex-wrap:wrap;align-items:center;gap:8px;}
  .breadcrumb a{color:var(--text-3);transition:color .2s var(--ease);}
  .breadcrumb a:hover{color:var(--mint);}
  .breadcrumb .sep{color:var(--text-3);opacity:.6;}
  .breadcrumb .current{color:var(--text-2);max-width:320px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;}
  .article-h1{
    font-size:clamp(26px,3.6vw,42px);
    line-height:1.25;font-weight:700;letter-spacing:.2px;
    margin-top:16px;max-width:900px;
  }
  .meta-row{display:flex;flex-wrap:wrap;align-items:center;gap:14px;margin-top:18px;font-size:13px;color:var(--text-3);}
  .badge{
    display:inline-flex;align-items:center;gap:6px;
    padding:4px 10px;border-radius:6px;font-size:12px;font-weight:600;
    background:rgba(108,76,255,.16);color:#B9A8FF;border:1px solid rgba(108,76,255,.35);
  }
  .badge-mint{background:rgba(43,227,192,.12);color:var(--mint);border-color:rgba(43,227,192,.3);}
  .head-divider{height:1px;background:var(--border);margin-top:26px;}

  /* ---------- layout ---------- */
  .article-layout{display:grid;grid-template-columns:1fr;gap:40px;padding:56px 0 72px;}
  @media (min-width:1280px){
    .article-layout{grid-template-columns:minmax(0,1fr) 320px;gap:48px;padding:72px 0 96px;}
  }
  .article-main-col{min-width:0;}
  .article-body{
    max-width:840px;font-size:17.5px;line-height:1.9;color:#DAD8E6;
  }
  .article-body p{margin:0 0 20px;}
  .article-body h2{
    position:relative;font-size:clamp(21px,2.4vw,26px);line-height:1.4;font-weight:700;
    color:var(--text-1);margin:44px 0 16px;padding-left:16px;
  }
  .article-body h2::before{
    content:"";position:absolute;left:0;top:8px;width:4px;height:20px;border-radius:2px;background:var(--primary);
  }
  .article-body h3{font-size:20px;font-weight:600;color:var(--text-1);margin:30px 0 12px;}
  .article-body ul,.article-body ol{margin:0 0 22px;padding-left:22px;}
  .article-body ul{list-style:disc;}
  .article-body ol{list-style:decimal;}
  .article-body li{margin:8px 0;}
  .article-body li::marker{color:var(--primary);}
  .article-body strong{color:#fff;}
  .article-body a{color:var(--mint);border-bottom:1px solid rgba(43,227,192,.35);transition:border-color .2s var(--ease);}
  .article-body a:hover{border-color:var(--mint);}
  .article-body blockquote{
    margin:0 0 22px;padding:16px 20px;border-left:4px solid var(--primary);
    background:rgba(108,76,255,.09);border-radius:0 12px 12px 0;color:var(--text-2);
  }
  .article-body blockquote p:last-child{margin-bottom:0;}
  .article-body img{border-radius:12px;margin:8px 0 20px;}
  .article-body figure{margin:22px 0;}
  .article-body figcaption{font-size:13px;color:var(--text-3);margin-top:8px;text-align:center;}
  .article-body code{background:rgba(255,255,255,.07);padding:2px 7px;border-radius:6px;font-size:15px;color:var(--mint);}
  .article-body pre{
    background:#100E1F;border:1px solid var(--border);border-radius:12px;
    padding:16px 18px;overflow-x:auto;margin:0 0 22px;font-size:14px;line-height:1.7;
  }
  .article-body pre code{background:transparent;padding:0;color:#CFCBE4;}
  .article-body table{
    display:block;width:100%;overflow-x:auto;border-collapse:collapse;margin:0 0 24px;font-size:15px;
    border:1px solid var(--border);border-radius:12px;
  }
  .article-body thead th{background:rgba(108,76,255,.16);color:#fff;font-weight:600;}
  .article-body th,.article-body td{padding:11px 14px;border-bottom:1px solid var(--border);text-align:left;white-space:nowrap;}
  .article-body tbody tr:nth-child(even){background:rgba(255,255,255,.03);}
  .article-body tbody tr:last-child td{border-bottom:0;}
  .article-body hr{border:0;border-top:1px solid var(--border);margin:32px 0;}

  /* ---------- empty state ---------- */
  .empty-state{
    border:1px dashed var(--border);border-radius:var(--radius-card);background:var(--card);
    padding:64px 24px;text-align:center;
  }
  .empty-state svg{margin:0 auto 16px;display:block;color:var(--primary);}
  .empty-state p{color:var(--text-2);margin-bottom:20px;}

  /* ---------- sidebar ---------- */
  .side-card{
    background:var(--card);border:1px solid var(--border);border-radius:var(--radius-card);
    padding:20px;box-shadow:var(--shadow-card);
  }
  .side-card + .side-card{margin-top:22px;}
  .side-title{font-size:15px;font-weight:700;color:#fff;display:flex;align-items:center;gap:8px;margin-bottom:14px;}
  .side-title::before{content:"";width:4px;height:14px;border-radius:2px;background:var(--mint);}
  .toc-link{
    display:block;font-size:14px;color:var(--text-2);padding:7px 10px;border-radius:8px;
    border-left:2px solid transparent;transition:all .2s var(--ease);
    overflow:hidden;text-overflow:ellipsis;white-space:nowrap;
  }
  .toc-link:hover{color:#fff;background:rgba(108,76,255,.14);border-left-color:var(--primary);}
  .toc-link.active{color:#fff;background:rgba(108,76,255,.18);border-left-color:var(--primary);}
  .quick-link{
    display:flex;align-items:center;justify-content:space-between;gap:10px;
    font-size:14px;color:var(--text-2);padding:9px 10px;border-radius:8px;
    transition:all .2s var(--ease);
  }
  .quick-link:hover{color:#fff;background:rgba(255,255,255,.05);}
  .quick-link span.arrow{color:var(--text-3);transition:transform .2s var(--ease);}
  .quick-link:hover span.arrow{transform:translateX(3px);color:var(--mint);}
  .rel-item{display:flex;gap:12px;padding:10px;border-radius:12px;transition:background .2s var(--ease);}
  .rel-item:hover{background:rgba(255,255,255,.05);}
  .rel-thumb{
    width:72px;height:54px;flex:none;border-radius:8px;background:#1D1B33;overflow:hidden;
  }
  .rel-thumb img{width:100%;height:100%;object-fit:cover;}
  .rel-title{
    font-size:14px;line-height:1.5;color:var(--text-1);
    display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
  }
  .rel-meta{font-size:12px;color:var(--text-3);margin-top:4px;}

  /* ---------- tags + prev/next ---------- */
  .tag-row{display:flex;flex-wrap:wrap;gap:10px;align-items:center;margin-top:44px;}
  .tag{
    font-size:13px;color:var(--text-2);padding:5px 12px;border-radius:999px;
    border:1px solid var(--border);background:rgba(255,255,255,.03);
    transition:all .2s var(--ease);
  }
  .tag:hover{color:#fff;border-color:rgba(108,76,255,.6);}
  .pn-grid{display:grid;grid-template-columns:1fr;gap:16px;margin-top:36px;}
  @media (min-width:640px){.pn-grid{grid-template-columns:1fr 1fr;}}
  .pn-card{
    display:block;background:var(--card);border:1px solid var(--border);border-radius:var(--radius-card);
    padding:18px 20px;transition:all .2s var(--ease);
  }
  .pn-card:hover{border-color:rgba(108,76,255,.5);transform:translateY(-3px);box-shadow:var(--shadow-hover);}
  .pn-label{font-size:12px;color:var(--text-3);letter-spacing:.06em;}
  .pn-title{font-size:15px;font-weight:600;color:var(--text-1);margin-top:6px;line-height:1.5;}

  /* ---------- CTA ---------- */
  .cta-block{
    margin-top:32px;background:linear-gradient(135deg,rgba(108,76,255,.18),rgba(43,227,192,.1));
    border:1px solid var(--border);border-radius:var(--radius-card);
    padding:26px 24px;display:flex;flex-direction:column;gap:18px;
  }
  @media (min-width:768px){
    .cta-block{flex-direction:row;align-items:center;justify-content:space-between;padding:30px 32px;}
  }
  .cta-block h3{font-size:19px;font-weight:700;color:#fff;}
  .cta-block p{font-size:14px;color:var(--text-2);margin-top:6px;}

  /* ---------- footer ---------- */
  .site-footer{margin-top:40px;background:#0A0912;border-top:1px solid var(--border);position:relative;z-index:1;}
  .foot-title{font-size:14px;font-weight:700;color:#fff;letter-spacing:.04em;}
  .foot-link{display:block;font-size:14px;color:var(--text-2);padding:6px 0;transition:color .2s var(--ease);}
  .foot-link:hover{color:var(--primary);}

  .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;}

  @media (max-width:640px){
    .article-body{font-size:16.5px;line-height:1.85;}
    .container-x{padding-left:16px;padding-right:16px;}
    .cta-block{padding:22px 18px;}
  }

/* roulang page: category1 */
:root{
  --bg:#0C0B14;
  --surface:#141222;
  --card:#16142A;
  --primary:#6C4CFF;
  --primary-deep:#5438E0;
  --accent:#FF8A3D;
  --mint:#2BE3C0;
  --text-1:#F2F1F7;
  --text-2:#A8A5BD;
  --text-3:#6E6B85;
  --border:rgba(255,255,255,.08);
  --border-strong:rgba(255,255,255,.16);
  --radius-card:16px;
  --radius-btn:12px;
  --shadow-card:0 8px 28px rgba(0,0,0,.35);
  --shadow-hover:0 14px 40px rgba(108,76,255,.18);
  --ease:cubic-bezier(.4,0,.2,1);
  --container:1200px;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  background:var(--bg);
  color:var(--text-1);
  font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC",-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,sans-serif;
  font-size:16px;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
  padding-bottom:56px;
}
a{color:inherit;text-decoration:none;transition:color .2s var(--ease)}
img{max-width:100%;display:block}
button,input,select,textarea{font:inherit;color:inherit}
h1,h2,h3,h4,p,ul,ol{margin:0}
ul,ol{padding:0;list-style:none}
:focus-visible{outline:2px solid var(--primary);outline-offset:2px;border-radius:4px}

.container-x{width:100%;max-width:var(--container);margin:0 auto;padding:0 20px}

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:70;
  background:rgba(12,11,20,.92);
  backdrop-filter:blur(12px);
  -webkit-backdrop-filter:blur(12px);
  border-bottom:1px solid var(--border);
}
.logo-mark{
  width:36px;height:36px;flex:none;border-radius:10px;
  display:grid;place-items:center;
  background:linear-gradient(135deg,var(--primary),var(--primary-deep));
  color:#fff;font-weight:800;font-size:18px;line-height:1;
  box-shadow:0 6px 18px rgba(108,76,255,.35);
}
.nav-link{position:relative;font-size:15px;color:var(--text-2);padding:6px 0;white-space:nowrap;transition:color .2s var(--ease)}
.nav-link:hover{color:var(--text-1)}
.nav-link.active{color:var(--text-1);font-weight:600}
.nav-link.active::after{
  content:"";position:absolute;left:0;right:0;bottom:-3px;height:3px;
  border-radius:3px;background:var(--primary);
}
.nav-search{
  display:flex;align-items:center;gap:10px;
  background:#0F0D1D;
  border:1px solid var(--border);
  border-radius:999px;
  padding:5px 5px 5px 14px;
  min-width:280px;
  flex:1 1 280px;
  transition:border-color .2s var(--ease),box-shadow .2s var(--ease);
}
.nav-search:focus-within{border-color:rgba(108,76,255,.75);box-shadow:0 0 0 4px rgba(108,76,255,.15)}
.nav-search input{flex:1;min-width:0;background:transparent;border:0;outline:0;font-size:14px;color:var(--text-1)}
.nav-search input::placeholder{color:var(--text-3)}
.search-btn{
  height:34px;padding:0 18px;border:0;border-radius:999px;
  background:var(--primary);color:#fff;font-size:14px;font-weight:600;cursor:pointer;
  transition:background .2s var(--ease),transform .15s var(--ease);white-space:nowrap;
}
.search-btn:hover{background:var(--primary-deep)}
.search-btn:active{transform:scale(.98)}
.burger{
  width:40px;height:40px;flex:none;display:grid;place-items:center;
  border:1px solid var(--border);border-radius:10px;
  background:transparent;color:var(--text-1);cursor:pointer;
  transition:border-color .2s var(--ease),background .2s var(--ease);
}
.burger:hover{border-color:var(--border-strong);background:rgba(255,255,255,.04)}
.mobile-panel{display:none;border-top:1px solid var(--border);background:var(--surface)}
@media (max-width:1023.98px){
  .mobile-panel.open{display:block}
  .nav-search{min-width:0;flex:1 1 auto}
}
.m-nav-link{
  display:block;padding:12px 14px;border-radius:12px;
  font-size:15px;color:var(--text-2);border:1px solid transparent;
  transition:all .2s var(--ease);
}
.m-nav-link:hover{background:rgba(255,255,255,.04);color:var(--text-1)}
.m-nav-link.active{color:#fff;background:rgba(108,76,255,.16);border-color:rgba(108,76,255,.42)}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:44px;padding:0 22px;border-radius:var(--radius-btn);
  font-size:15px;font-weight:600;border:1px solid transparent;cursor:pointer;
  white-space:nowrap;transition:all .2s var(--ease);
}
.btn-primary{background:var(--primary);color:#fff}
.btn-primary:hover{
  background-image:linear-gradient(135deg,#6C4CFF 15%,#5438E0 68%,#2BE3C0 165%);
  transform:translateY(-2px);
  box-shadow:var(--shadow-hover);
}
.btn-ghost{background:transparent;color:var(--text-1);border-color:rgba(255,255,255,.18)}
.btn-ghost:hover{border-color:rgba(108,76,255,.75);background:rgba(108,76,255,.12);color:#fff;transform:translateY(-2px)}
.btn-sm{height:36px;padding:0 16px;font-size:14px;border-radius:10px}
.btn:active{transform:scale(.98)}

/* ---------- page hero ---------- */
.page-hero{position:relative;overflow:hidden;border-bottom:1px solid var(--border)}
.page-hero-bg{
  position:absolute;inset:0;
  background-image:url('/assets/images/backpic/back-2.png');
  background-size:cover;background-position:center;
  opacity:.45;
}
.page-hero-mask{
  position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(12,11,20,.72) 0%,rgba(12,11,20,.88) 58%,var(--bg) 100%);
}
.page-hero-glow{
  position:absolute;width:460px;height:460px;right:-120px;top:-160px;
  background:radial-gradient(circle,rgba(108,76,255,.55),transparent 68%);
  filter:blur(90px);opacity:.55;pointer-events:none;
}
.page-hero-inner{
  position:relative;z-index:2;
  padding:44px 0 48px;min-height:340px;
  display:flex;flex-direction:column;justify-content:center;
}
.crumb{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--text-3);flex-wrap:wrap}
.crumb a:hover{color:var(--primary)}
.crumb .sep{opacity:.55}
.crumb .current{color:var(--text-2)}
.page-hero h1{
  margin-top:18px;
  font-size:clamp(28px,4.4vw,44px);
  line-height:1.2;font-weight:700;letter-spacing:-.01em;
  max-width:820px;
}
.page-hero .lede{margin-top:14px;font-size:16px;color:var(--text-2);max-width:680px}
.hero-badges{display:flex;flex-wrap:wrap;gap:10px;margin-top:22px}
.badge{
  display:inline-flex;align-items:center;gap:6px;
  border-radius:6px;padding:5px 11px;font-size:12px;font-weight:600;
  background:rgba(108,76,255,.16);color:#BCA9FF;border:1px solid rgba(108,76,255,.32);
}
.badge.mint{background:rgba(43,227,192,.14);color:var(--mint);border-color:rgba(43,227,192,.3)}
.badge.accent{background:rgba(255,138,61,.14);color:var(--accent);border-color:rgba(255,138,61,.3)}

/* ---------- layout ---------- */
.section{padding:64px 0}
.section-tight{padding:56px 0}
.layout{display:grid;grid-template-columns:4fr 8fr;gap:32px;align-items:start}
@media (max-width:1023.98px){.layout{grid-template-columns:1fr;gap:24px}}

.anchor-nav{
  position:sticky;top:96px;
  background:var(--card);border:1px solid var(--border);
  border-radius:var(--radius-card);padding:22px;
  box-shadow:var(--shadow-card);
}
.anchor-title{font-size:13px;letter-spacing:.14em;color:var(--text-3);text-transform:uppercase;font-weight:600}
.anchor-list{margin-top:14px;display:grid;gap:6px}
.anchor-link{
  display:flex;align-items:center;gap:10px;
  padding:10px 12px;border-radius:10px;font-size:14px;color:var(--text-2);
  border:1px solid transparent;transition:all .2s var(--ease);
}
.anchor-link:hover{background:rgba(255,255,255,.04);color:var(--text-1)}
.anchor-link.active{color:#fff;background:rgba(108,76,255,.14);border-color:rgba(108,76,255,.36)}
.anchor-link .dot{width:6px;height:6px;border-radius:50%;background:var(--text-3);flex:none}
.anchor-link.active .dot{background:var(--mint)}
.anchor-note{
  margin-top:18px;padding-top:16px;border-top:1px solid var(--border);
  font-size:13px;color:var(--text-3);line-height:1.7;
}
@media (max-width:1023.98px){.anchor-nav{position:static}}

.doc-section{
  background:var(--card);border:1px solid var(--border);
  border-radius:var(--radius-card);padding:28px;
  box-shadow:var(--shadow-card);margin-bottom:24px;
  transition:border-color .2s var(--ease),transform .2s var(--ease);
}
.doc-section:hover{border-color:rgba(108,76,255,.4);transform:translateY(-3px)}
.doc-section h2{display:flex;align-items:center;gap:10px;font-size:clamp(20px,2.4vw,24px);line-height:1.35;font-weight:700}
.doc-section h2::before{content:"";width:4px;height:20px;border-radius:2px;background:var(--primary);flex:none}
.doc-section h3{font-size:17px;font-weight:600;color:var(--text-1);margin-top:20px}
.doc-section p{margin-top:14px;color:var(--text-2);font-size:15.5px}
.doc-section p strong{color:var(--text-1);font-weight:600}

.figure{margin-top:22px;border-radius:14px;overflow:hidden;border:1px solid var(--border);background:#100E1E}
.figure img{width:100%;aspect-ratio:21/9;object-fit:cover}
.figure figcaption{padding:12px 16px;font-size:13px;color:var(--text-3)}

.step-list{margin-top:22px;display:grid;gap:0}
.step{display:flex;gap:16px;padding:18px 0;border-bottom:1px dashed rgba(255,255,255,.1)}
.step:last-child{border-bottom:0;padding-bottom:0}
.step:first-child{padding-top:0}
.step-no{
  width:40px;height:40px;flex:none;border-radius:12px;
  display:grid;place-items:center;font-weight:800;font-size:16px;
  color:var(--accent);background:rgba(255,138,61,.12);
  border:1px solid rgba(255,138,61,.32);
}
.step h3{margin-top:2px;font-size:17px;font-weight:600}
.step p{margin-top:8px;font-size:15px;color:var(--text-2)}

.list-check{margin-top:18px;display:grid;gap:12px}
.list-check li{display:flex;gap:12px;align-items:flex-start;font-size:15px;color:var(--text-2)}
.list-check li svg{flex:none;margin-top:5px}
.list-check li b{color:var(--text-1);font-weight:600}

.tile-grid{margin-top:22px;display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px}
@media (max-width:639.98px){.tile-grid{grid-template-columns:1fr}}
.tile{
  background:var(--surface);border:1px solid var(--border);
  border-radius:14px;padding:18px;
  transition:border-color .2s var(--ease),background .2s var(--ease);
}
.tile:hover{border-color:rgba(43,227,192,.42);background:rgba(43,227,192,.05)}
.tile h4{font-size:15.5px;font-weight:600;display:flex;align-items:center;gap:8px}
.tile h4 span{width:8px;height:8px;border-radius:2px;background:var(--mint);flex:none}
.tile p{margin-top:8px;font-size:14px;color:var(--text-2)}

/* ---------- scene cards ---------- */
.scene-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px}
@media (max-width:1023.98px){.scene-grid{grid-template-columns:1fr}}
.scene-card{
  background:var(--card);border:1px solid var(--border);
  border-radius:var(--radius-card);overflow:hidden;
  box-shadow:var(--shadow-card);
  transition:border-color .2s var(--ease),transform .2s var(--ease),box-shadow .2s var(--ease);
}
.scene-card:hover{border-color:rgba(108,76,255,.45);transform:translateY(-3px);box-shadow:var(--shadow-hover)}
.scene-card .cover{width:100%;aspect-ratio:16/9;object-fit:cover;background:#100E1E}
.scene-card .body{padding:20px}
.scene-card .num{
  display:inline-flex;align-items:center;justify-content:center;
  min-width:28px;height:24px;padding:0 8px;border-radius:6px;
  background:rgba(43,227,192,.14);color:var(--mint);
  font-size:12px;font-weight:700;margin-bottom:10px;
}
.scene-card h3{font-size:17px;font-weight:600}
.scene-card p{margin-top:10px;font-size:14.5px;color:var(--text-2)}

/* ---------- stats ---------- */
.stat-band{
  background:var(--surface);border:1px solid var(--border);
  border-radius:var(--radius-card);padding:28px;
  display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px;
}
@media (max-width:767.98px){.stat-band{grid-template-columns:1fr;gap:24px}}
.stat-item{border-left:2px solid rgba(108,76,255,.5);padding-left:18px}
.stat-item .num{font-size:clamp(34px,4.6vw,48px);font-weight:800;line-height:1;letter-spacing:-.02em}
.stat-item .num em{font-style:normal;font-size:.5em;color:var(--text-3);margin-left:4px}
.stat-item .label{margin-top:10px;font-size:14px;color:var(--text-2)}
.stat-item.mint .num{color:var(--mint)}
.stat-item.accent .num{color:var(--accent)}
.stat-item.primary .num{color:#BCA9FF}

/* ---------- faq ---------- */
.faq-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px}
@media (max-width:899.98px){.faq-grid{grid-template-columns:1fr}}
.faq-item{
  background:var(--card);border:1px solid var(--border);
  border-radius:14px;overflow:hidden;
  transition:border-color .2s var(--ease);
}
.faq-item:hover{border-color:rgba(108,76,255,.4)}
.faq-item.open{border-color:rgba(108,76,255,.5)}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:14px;
  padding:16px 18px 16px 16px;border:0;border-left:4px solid var(--primary);
  background:transparent;color:var(--text-1);text-align:left;
  font-size:15.5px;font-weight:600;cursor:pointer;line-height:1.6;
}
.faq-arrow{flex:none;transition:transform .22s var(--ease);color:var(--text-3)}
.faq-item.open .faq-arrow{transform:rotate(180deg);color:var(--primary)}
.faq-a{display:none;padding:0 20px 18px 20px;font-size:14.5px;color:var(--text-2);background:rgba(255,255,255,.022)}
.faq-item.open .faq-a{display:block}

/* ---------- cta ---------- */
.cta-card{
  display:flex;align-items:center;justify-content:space-between;gap:26px;
  padding:30px 32px;border-radius:20px;
  background:linear-gradient(135deg,rgba(108,76,255,.24),rgba(43,227,192,.1));
  border:1px solid rgba(108,76,255,.38);
  box-shadow:var(--shadow-card);
}
.cta-card h2{font-size:clamp(19px,2.3vw,23px);font-weight:700;line-height:1.4}
.cta-card p{margin-top:8px;font-size:14.5px;color:var(--text-2);max-width:560px}
@media (max-width:767.98px){.cta-card{flex-direction:column;align-items:flex-start;padding:24px}}

.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:16px;margin-bottom:26px}
.section-head h2{font-size:clamp(22px,3vw,32px);font-weight:700;line-height:1.3}
.section-head p{margin-top:10px;font-size:15px;color:var(--text-2);max-width:640px}
.section-head .more{font-size:14px;color:var(--mint);white-space:nowrap}
.section-head .more:hover{color:#7CF3DE;text-decoration:underline;text-underline-offset:4px}

/* ---------- footer ---------- */
.site-footer{margin-top:24px;background:var(--surface);border-top:1px solid var(--border)}
.foot-title{font-size:14px;font-weight:700;color:var(--text-1);letter-spacing:.02em}
.foot-link{display:inline-block;padding:5px 0;font-size:14px;color:var(--text-2)}
.foot-link:hover{color:var(--primary)}
.site-footer ul{display:grid;gap:2px}

/* ---------- sticky bar ---------- */
.sticky-bar{
  position:fixed;left:0;right:0;bottom:0;z-index:80;
  height:58px;display:flex;align-items:center;
  background:rgba(20,18,34,.96);
  border-top:1px solid var(--border);
  box-shadow:0 -6px 24px rgba(0,0,0,.4);
  backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px);
  opacity:0;transform:translateY(14px);pointer-events:none;
  transition:opacity .25s var(--ease),transform .25s var(--ease);
}
.sticky-bar.show{opacity:1;transform:translateY(0);pointer-events:auto}
.sticky-bar .inner{display:flex;align-items:center;justify-content:space-between;gap:16px;width:100%}
.sticky-bar .txt{font-size:14px;color:var(--text-2)}
.sticky-bar .txt b{color:var(--text-1)}
@media (max-width:639.98px){
  .sticky-bar .txt{font-size:13px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
}

/* roulang page: category2 */
:root{
  --bg:#0C0B14;
  --surface:#141222;
  --card:#16142A;
  --primary:#6C4CFF;
  --primary-d:#5438E0;
  --accent:#FF8A3D;
  --mint:#2BE3C0;
  --text:#F2F1F7;
  --text-2:#A8A5BD;
  --text-3:#6E6B85;
  --border:rgba(255,255,255,.08);
  --border-strong:rgba(255,255,255,.14);
  --r-card:16px;
  --r-btn:12px;
  --sh-card:0 8px 28px rgba(0,0,0,.35);
  --sh-hover:0 14px 40px rgba(108,76,255,.18);
  --ease:cubic-bezier(.4,0,.2,1);
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:16px;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none;transition:color .18s var(--ease)}
button,input,select,textarea{font:inherit;color:inherit}
h1,h2,h3,h4,p,ul,ol{margin:0;padding:0}
ul,ol{list-style:none}
:focus-visible{outline:2px solid var(--primary);outline-offset:2px;border-radius:4px}

.container-x{width:100%;max-width:1200px;margin:0 auto;padding-left:20px;padding-right:20px}
@media (max-width:640px){.container-x{padding-left:16px;padding-right:16px}}

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(12,11,20,.92);
  backdrop-filter:blur(12px);
  -webkit-backdrop-filter:blur(12px);
  border-bottom:1px solid var(--border);
}
.logo-mark{
  width:40px;height:40px;flex:none;border-radius:12px;
  display:inline-flex;align-items:center;justify-content:center;
  font-weight:800;font-size:18px;color:#fff;
  background:linear-gradient(135deg,var(--primary),#8F6BFF);
  box-shadow:0 6px 18px rgba(108,76,255,.35);
}
.nav-link{
  position:relative;font-size:15px;color:var(--text-2);
  padding:6px 0;white-space:nowrap;transition:color .18s var(--ease);
}
.nav-link:hover{color:var(--text)}
.nav-link.active{color:var(--text);font-weight:600}
.nav-link.active::after{
  content:"";position:absolute;left:0;right:0;bottom:-6px;height:3px;
  border-radius:2px;background:var(--primary);
}
.nav-search{
  display:flex;align-items:center;gap:10px;
  flex:1 1 auto;max-width:520px;min-width:420px;height:44px;
  padding:0 6px 0 16px;
  background:rgba(255,255,255,.045);
  border:1px solid var(--border);
  border-radius:999px;
  transition:border-color .2s var(--ease),box-shadow .2s var(--ease);
}
.nav-search:focus-within{border-color:var(--primary);box-shadow:0 0 0 4px rgba(108,76,255,.16)}
.nav-search svg{flex:none}
.nav-search input{
  flex:1 1 auto;min-width:0;background:transparent;border:0;outline:0;
  font-size:14px;color:var(--text);
}
.nav-search input::placeholder{color:var(--text-3)}
.search-btn{
  flex:none;height:34px;padding:0 18px;border:0;border-radius:999px;
  background:var(--primary);color:#fff;font-size:14px;font-weight:600;
  cursor:pointer;transition:background .2s var(--ease),transform .2s var(--ease);
}
.search-btn:hover{background:var(--primary-d)}
.search-btn:active{transform:scale(.97)}
@media (max-width:1279px){.nav-search{min-width:300px;max-width:420px}}
@media (max-width:1120px){.nav-search{min-width:220px;max-width:320px}}

.burger{
  width:42px;height:42px;flex:none;display:inline-flex;align-items:center;justify-content:center;
  border-radius:10px;border:1px solid var(--border);
  background:rgba(255,255,255,.04);color:var(--text-2);
  cursor:pointer;transition:.2s var(--ease);
}
.burger:hover{color:var(--text);border-color:var(--primary)}
.mobile-panel{display:none;border-top:1px solid var(--border);background:var(--surface)}
.mobile-panel.open{display:block}
.mobile-link{
  display:block;padding:12px 14px;border-radius:10px;
  font-size:15px;color:var(--text-2);
  border:1px solid transparent;transition:.2s var(--ease);
}
.mobile-link:hover{color:var(--text);background:rgba(255,255,255,.04);border-color:var(--border)}
.mobile-link.active{color:var(--text);background:rgba(108,76,255,.14);border-color:rgba(108,76,255,.35);font-weight:600}
@media (min-width:1024px){.mobile-panel{display:none !important}}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:44px;padding:0 22px;border-radius:var(--r-btn);
  font-size:15px;font-weight:600;border:1px solid transparent;
  cursor:pointer;transition:all .2s var(--ease);
}
.btn-primary{background:var(--primary);color:#fff}
.btn-primary:hover{
  background:linear-gradient(135deg,var(--primary),var(--mint));
  box-shadow:0 12px 30px rgba(108,76,255,.35);
  transform:translateY(-2px);color:#fff;
}
.btn-ghost{border-color:var(--border-strong);color:var(--text);background:transparent}
.btn-ghost:hover{border-color:var(--primary);background:rgba(108,76,255,.12);color:#fff}
.btn-sm{height:36px;padding:0 16px;font-size:14px;border-radius:10px}
.btn:active{transform:scale(.98)}

/* ---------- hero ---------- */
.page-hero{position:relative;overflow:hidden;border-bottom:1px solid var(--border)}
.page-hero::before{
  content:"";position:absolute;inset:0;
  background:url('/assets/images/backpic/back-2.png') center/cover no-repeat;
  opacity:.55;
}
.page-hero::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(12,11,20,.72) 0%,rgba(12,11,20,.93) 70%,var(--bg) 100%);
}
.page-hero .hero-inner{position:relative;z-index:2;padding:60px 0 64px}
@media (max-width:640px){.page-hero .hero-inner{padding:44px 0 48px}}
.crumb{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--text-2)}
.crumb a:hover{color:var(--mint)}
.crumb .sep{color:var(--text-3)}
.crumb .current{color:var(--text-2)}

.hero-chip{
  display:inline-flex;align-items:center;gap:6px;
  padding:5px 12px;border-radius:6px;font-size:12.5px;
  background:rgba(43,227,192,.10);color:var(--mint);
  border:1px solid rgba(43,227,192,.24);
}

/* ---------- sections ---------- */
.section{padding:88px 0}
.section-tight{padding:64px 0}
@media (max-width:1024px){.section{padding:72px 0}.section-tight{padding:52px 0}}
@media (max-width:640px){.section{padding:56px 0}.section-tight{padding:44px 0}}
.sec-title{font-size:clamp(22px,3vw,32px);line-height:1.3;font-weight:700;letter-spacing:.01em}
.sec-sub{margin-top:12px;color:var(--text-2);font-size:15px;max-width:640px}

/* ---------- metrics ---------- */
.metric-strip{
  display:grid;grid-template-columns:repeat(4,1fr);gap:20px;
  padding:28px 30px;border-radius:var(--r-card);
  background:var(--surface);border:1px solid var(--border);
}
.metric-item .num{
  font-size:40px;line-height:1.05;font-weight:800;letter-spacing:-.02em;
  background:linear-gradient(135deg,#F2F1F7,var(--mint));
  -webkit-background-clip:text;background-clip:text;color:transparent;
}
.metric-item .num small{font-size:16px;font-weight:600;margin-left:2px}
.metric-item .lbl{margin-top:8px;font-size:13.5px;color:var(--text-2)}
@media (max-width:860px){.metric-strip{grid-template-columns:repeat(2,1fr);gap:24px 20px;padding:24px}}
@media (max-width:520px){.metric-item .num{font-size:32px}}

/* ---------- waterfall cards ---------- */
.waterfall{display:grid;grid-template-columns:repeat(2,1fr);gap:24px;align-items:start}
.waterfall .col-b{margin-top:52px}
@media (max-width:900px){.waterfall{grid-template-columns:1fr}.waterfall .col-b{margin-top:0}
  .waterfall .col-a,.waterfall .col-b{display:grid;gap:24px}}
.sec-card{
  background:var(--card);border:1px solid var(--border);border-radius:var(--r-card);
  padding:26px;box-shadow:var(--sh-card);
  transition:transform .22s var(--ease),border-color .22s var(--ease),box-shadow .22s var(--ease);
}
.sec-card:hover{transform:translateY(-3px);border-color:rgba(108,76,255,.4);box-shadow:var(--sh-hover)}
.sec-card + .sec-card{margin-top:24px}
@media (max-width:900px){.sec-card + .sec-card{margin-top:0}}
.card-head{display:flex;align-items:center;justify-content:space-between;gap:14px}
.card-num{
  font-size:30px;font-weight:800;line-height:1;letter-spacing:-.02em;
  color:rgba(108,76,255,.55);
}
.icon-box{
  width:44px;height:44px;flex:none;border-radius:12px;
  display:inline-flex;align-items:center;justify-content:center;
  background:rgba(43,227,192,.10);
  border:1px solid rgba(43,227,192,.22);
  color:var(--mint);
  transition:.22s var(--ease);
}
.sec-card:hover .icon-box{background:rgba(255,138,61,.12);border-color:rgba(255,138,61,.3);color:var(--accent)}
.sec-card h3{margin-top:16px;font-size:19px;font-weight:600;line-height:1.4}
.sec-card p{margin-top:10px;font-size:14.5px;line-height:1.8;color:var(--text-2)}
.card-media{
  margin-top:18px;border-radius:12px;overflow:hidden;
  aspect-ratio:16/9;background:var(--surface);
}
.card-media img{width:100%;height:100%;object-fit:cover;transition:transform .3s var(--ease)}
.sec-card:hover .card-media img{transform:scale(1.03)}
.tag{
  display:inline-block;padding:3px 9px;border-radius:6px;font-size:12px;
  background:rgba(108,76,255,.16);color:#BBA9FF;border:1px solid rgba(108,76,255,.28);
}
.tag-mint{background:rgba(43,227,192,.12);color:var(--mint);border-color:rgba(43,227,192,.26)}
.tag-warn{background:rgba(255,138,61,.12);color:var(--accent);border-color:rgba(255,138,61,.28)}

/* ---------- verify rows ---------- */
.vrow{
  display:grid;grid-template-columns:56px 1fr 180px;gap:20px;align-items:center;
  padding:22px 24px;border:1px solid var(--border);border-radius:14px;
  background:var(--surface);
  transition:border-color .2s var(--ease),background .2s var(--ease),transform .2s var(--ease);
}
.vrow:hover{border-color:rgba(108,76,255,.4);background:var(--card);transform:translateY(-2px)}
.vrow .vt{font-size:17px;font-weight:600}
.vrow .vd{margin-top:6px;font-size:14px;color:var(--text-2);line-height:1.75}
.vrow .vtag{justify-self:end}
@media (max-width:820px){
  .vrow{grid-template-columns:44px 1fr;gap:14px;padding:20px}
  .vrow .vtag{grid-column:2;justify-self:start;margin-top:4px}
}

/* ---------- flow ---------- */
.flow-band{position:relative;overflow:hidden;border-radius:20px;border:1px solid var(--border);padding:44px 40px}
.flow-band::before{
  content:"";position:absolute;inset:0;
  background:url('/assets/images/backpic/back-3.png') center/cover no-repeat;opacity:.28;
}
.flow-band::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(120deg,rgba(12,11,20,.94),rgba(20,18,34,.86));
}
.flow-band > *{position:relative;z-index:2}
.flow-list{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;margin-top:32px}
.flow-item{padding:22px 20px;border-radius:14px;background:rgba(22,20,42,.82);border:1px solid var(--border)}
.flow-dot{
  width:34px;height:34px;border-radius:50%;
  display:inline-flex;align-items:center;justify-content:center;
  font-size:14px;font-weight:700;color:#fff;
  background:linear-gradient(135deg,var(--primary),var(--primary-d));
  box-shadow:0 0 0 4px rgba(108,76,255,.14);
}
.flow-item h3{margin-top:14px;font-size:16.5px;font-weight:600}
.flow-item p{margin-top:8px;font-size:13.8px;color:var(--text-2);line-height:1.75}
@media (max-width:900px){.flow-list{grid-template-columns:repeat(2,1fr)}}
@media (max-width:560px){
  .flow-band{padding:28px 20px}
  .flow-list{grid-template-columns:1fr}
}

/* ---------- proof ---------- */
.proof-grid{display:grid;grid-template-columns:5fr 7fr;gap:32px;align-items:start}
@media (max-width:980px){.proof-grid{grid-template-columns:1fr}}
.proof-stats{display:grid;gap:16px}
.proof-stat{padding:20px 22px;border-radius:14px;background:var(--surface);border:1px solid var(--border)}
.proof-stat .n{font-size:34px;font-weight:800;line-height:1.1;color:var(--mint);letter-spacing:-.02em}
.proof-stat .t{margin-top:6px;font-size:13.5px;color:var(--text-2)}
.quote-card{
  padding:24px;border-radius:14px;background:var(--card);border:1px solid var(--border);
  transition:border-color .2s var(--ease),transform .2s var(--ease);
}
.quote-card:hover{border-color:rgba(43,227,192,.35);transform:translateY(-2px)}
.avatar{
  width:40px;height:40px;border-radius:50%;flex:none;
  display:inline-flex;align-items:center;justify-content:center;
  font-size:15px;font-weight:700;color:#0C0B14;
  background:linear-gradient(135deg,var(--mint),#7BF0D8);
}
.stars{color:var(--accent);font-size:13px;letter-spacing:2px}

/* ---------- faq ---------- */
.faq-item{
  background:var(--card);border:1px solid var(--border);border-radius:14px;
  overflow:hidden;transition:border-color .2s var(--ease);
}
.faq-item + .faq-item{margin-top:14px}
.faq-item.open{border-color:rgba(108,76,255,.4)}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:18px 20px;background:transparent;border:0;text-align:left;
  font-size:16px;font-weight:600;color:var(--text);cursor:pointer;
}
.faq-q .qt{display:flex;align-items:center;gap:12px}
.faq-q .bar{width:4px;height:18px;border-radius:2px;background:var(--primary);flex:none}
.faq-q svg{flex:none;transition:transform .22s var(--ease);color:var(--text-3)}
.faq-item.open .faq-q svg{transform:rotate(180deg);color:var(--mint)}
.faq-a{display:none;padding:0 20px 20px 36px;font-size:14.5px;line-height:1.85;color:var(--text-2)}
.faq-item.open .faq-a{display:block}

/* ---------- cta band ---------- */
.cta-band{
  display:flex;align-items:center;justify-content:space-between;gap:26px;
  padding:34px 36px;border-radius:20px;
  background:linear-gradient(135deg,rgba(108,76,255,.22),rgba(43,227,192,.10));
  border:1px solid rgba(108,76,255,.32);
}
.cta-band h2{font-size:clamp(19px,2.4vw,25px);font-weight:700;line-height:1.35}
.cta-band p{margin-top:8px;font-size:14px;color:var(--text-2)}
@media (max-width:768px){
  .cta-band{flex-direction:column;align-items:flex-start;padding:26px 22px}
}

/* ---------- footer ---------- */
.site-footer{background:var(--surface);border-top:1px solid var(--border);margin-top:20px}
.foot-title{font-size:14px;font-weight:600;color:var(--text)}
.foot-link{display:block;padding:5px 0;font-size:14px;color:var(--text-2);transition:color .18s var(--ease)}
.foot-link:hover{color:var(--primary)}

/* roulang page: category3 */
:root{
    --bg:#0C0B14;
    --surface:#141222;
    --card:#16142A;
    --primary:#6C4CFF;
    --primary-d:#5438E0;
    --accent:#FF8A3D;
    --mint:#2BE3C0;
    --text-1:#F2F1F7;
    --text-2:#A8A5BD;
    --text-3:#6E6B85;
    --border:rgba(255,255,255,.08);
    --border-strong:rgba(255,255,255,.14);
    --radius:16px;
    --radius-sm:12px;
    --shadow-card:0 8px 28px rgba(0,0,0,.35);
    --shadow-hover:0 14px 40px rgba(108,76,255,.18);
    --ease:cubic-bezier(.4,0,.2,1);
  }

  *,*::before,*::after{box-sizing:border-box;}
  html{-webkit-text-size-adjust:100%;}
  body{
    margin:0;
    background:var(--bg);
    color:var(--text-1);
    font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei","Noto Sans SC","Helvetica Neue",Arial,sans-serif;
    font-size:16px;
    line-height:1.75;
    -webkit-font-smoothing:antialiased;
  }
  img{max-width:100%;display:block;}
  a{color:inherit;text-decoration:none;transition:color .2s var(--ease);}
  a:hover{color:var(--primary);}
  button{font-family:inherit;}
  ul,ol{margin:0;padding:0;list-style:none;}
  h1,h2,h3,h4,p{margin:0;}
  :focus-visible{outline:2px solid var(--primary);outline-offset:2px;border-radius:6px;}

  .container-x{width:100%;max-width:1200px;margin:0 auto;padding-left:20px;padding-right:20px;}
  .section{padding:96px 0;}
  .section-tight{padding:72px 0;}
  .eyebrow{font-size:13px;letter-spacing:.18em;color:var(--text-3);text-transform:uppercase;}

  /* ---------- header ---------- */
  .site-header{position:sticky;top:0;z-index:60;background:rgba(12,11,20,.9);backdrop-filter:blur(14px);border-bottom:1px solid var(--border);}
  .logo-mark{width:38px;height:38px;border-radius:12px;display:grid;place-items:center;font-weight:800;font-size:18px;color:#fff;background:linear-gradient(135deg,var(--primary),var(--primary-d));box-shadow:0 6px 18px rgba(108,76,255,.35);flex:none;}

  .desktop-nav .nav-link{
    position:relative;display:inline-block;padding:6px 2px;font-size:15px;color:var(--text-2);
    white-space:nowrap;transition:color .2s var(--ease);
  }
  .desktop-nav .nav-link:hover{color:var(--text-1);}
  .desktop-nav .nav-link.active{color:#fff;}
  .desktop-nav .nav-link.active::after{
    content:"";position:absolute;left:0;right:0;bottom:-3px;height:3px;border-radius:3px;background:var(--primary);
  }

  .nav-search{
    display:flex;align-items:center;gap:8px;flex:1 1 auto;min-width:420px;max-width:660px;height:44px;
    padding:0 6px 0 14px;border-radius:999px;background:#100E1C;border:1px solid var(--border);
    transition:border-color .2s var(--ease),box-shadow .2s var(--ease);
  }
  .nav-search:focus-within{border-color:var(--primary);box-shadow:0 0 0 3px rgba(108,76,255,.22);}
  .nav-search input{flex:1 1 auto;min-width:0;background:transparent;border:0;outline:0;color:var(--text-1);font-size:14px;}
  .nav-search input::placeholder{color:var(--text-3);}
  .search-btn{
    height:34px;padding:0 16px;border-radius:999px;border:0;background:var(--primary);color:#fff;
    font-size:14px;font-weight:600;cursor:pointer;transition:background .2s var(--ease),transform .15s var(--ease);
  }
  .search-btn:hover{background:var(--primary-d);}
  .search-btn:active{transform:scale(.97);}

  .btn{
    display:inline-flex;align-items:center;justify-content:center;gap:8px;height:44px;padding:0 20px;
    border-radius:12px;border:1px solid transparent;font-size:15px;font-weight:600;cursor:pointer;
    transition:all .2s var(--ease);
  }
  .btn-sm{height:36px;padding:0 16px;font-size:14px;border-radius:10px;}
  .btn-lg{height:52px;padding:0 26px;font-size:16px;border-radius:14px;}
  .btn-primary{background:var(--primary);color:#fff;box-shadow:0 8px 24px rgba(108,76,255,.28);}
  .btn-primary:hover{
    color:#fff;background-image:linear-gradient(135deg,var(--primary),var(--mint));
    transform:translateY(-2px);box-shadow:0 14px 34px rgba(108,76,255,.34);
  }
  .btn-primary:active{transform:scale(.98);}
  .btn-ghost{background:transparent;border-color:var(--border-strong);color:var(--text-1);}
  .btn-ghost:hover{border-color:var(--primary);background:rgba(108,76,255,.12);color:#fff;transform:translateY(-2px);}
  .btn-ghost:active{transform:scale(.98);}
  .btn-text{height:auto;padding:0;background:none;border:0;color:var(--primary);font-size:14px;font-weight:600;}
  .btn-text:hover{color:var(--mint);}

  .burger{
    width:40px;height:40px;display:grid;place-items:center;border-radius:10px;
    border:1px solid var(--border);background:transparent;color:var(--text-2);cursor:pointer;
    transition:border-color .2s var(--ease),color .2s var(--ease);
  }
  .burger:hover{border-color:var(--primary);color:#fff;}
  .mobile-panel{display:none;border-top:1px solid var(--border);background:#0F0D1A;}
  .mobile-panel.open{display:block;}
  .mob-link{
    display:flex;align-items:center;justify-content:space-between;padding:11px 14px;border-radius:12px;
    background:var(--card);border:1px solid var(--border);color:var(--text-2);font-size:14px;
  }
  .mob-link:hover{border-color:rgba(108,76,255,.45);color:#fff;}
  .mob-link.active{color:#fff;border-color:rgba(108,76,255,.55);background:rgba(108,76,255,.12);}

  /* ---------- banner ---------- */
  .hero-banner{
    position:relative;min-height:352px;display:flex;align-items:center;overflow:hidden;
    background-image:url('/assets/images/backpic/back-3.png');
    background-size:cover;background-position:center;background-color:#100E1C;
    border-bottom:1px solid var(--border);
  }
  .hero-banner::before{
    content:"";position:absolute;inset:0;
    background:linear-gradient(100deg,rgba(12,11,20,.95) 0%,rgba(12,11,20,.78) 45%,rgba(12,11,20,.5) 100%);
  }
  .hero-banner::after{
    content:"";position:absolute;width:420px;height:420px;right:-90px;top:-140px;border-radius:50%;
    background:radial-gradient(circle,rgba(108,76,255,.30),transparent 68%);filter:blur(60px);pointer-events:none;
  }
  .hero-banner > .container-x{position:relative;z-index:2;padding-top:60px;padding-bottom:60px;}
  .breadcrumb{display:flex;align-items:center;gap:8px;flex-wrap:wrap;font-size:13px;color:var(--text-3);}
  .breadcrumb a:hover{color:var(--primary);}
  .breadcrumb .current{color:var(--text-2);}
  .banner-title{font-size:clamp(28px,4.4vw,46px);line-height:1.16;font-weight:700;letter-spacing:-.01em;margin-top:16px;}
  .banner-sub{margin-top:14px;font-size:16px;color:var(--text-2);max-width:640px;}

  .chip{
    display:inline-flex;align-items:center;gap:6px;padding:4px 11px;border-radius:6px;font-size:12px;
    border:1px solid rgba(108,76,255,.35);background:rgba(108,76,255,.14);color:#C9BEFF;
  }
  .chip-mint{border-color:rgba(43,227,192,.32);background:rgba(43,227,192,.12);color:var(--mint);}
  .chip-accent{border-color:rgba(255,138,61,.32);background:rgba(255,138,61,.12);color:#FFB07A;}

  /* ---------- generic card ---------- */
  .card{
    background:var(--card);border:1px solid var(--border);border-radius:var(--radius);
    padding:26px;box-shadow:var(--shadow-card);
    transition:transform .2s var(--ease),box-shadow .2s var(--ease),border-color .2s var(--ease);
  }
  .card:hover{transform:translateY(-3px);box-shadow:var(--shadow-hover);border-color:rgba(108,76,255,.4);}
  .jump-card{display:block;}
  .jump-num{font-size:26px;font-weight:800;color:var(--accent);line-height:1;}
  .jump-title{font-size:17px;font-weight:700;margin-top:16px;}
  .jump-desc{font-size:14px;color:var(--text-2);margin-top:8px;}
  .jump-go{display:inline-flex;align-items:center;gap:6px;margin-top:16px;font-size:13.5px;font-weight:600;color:var(--primary);}
  .jump-card:hover .jump-go{color:var(--mint);}

  .sec-title{font-size:clamp(22px,3vw,32px);line-height:1.3;font-weight:700;}
  .sec-desc{margin-top:12px;font-size:15px;color:var(--text-2);max-width:720px;}

  /* ---------- faq ---------- */
  .faq-group{background:var(--card);border:1px solid var(--border);border-radius:var(--radius);padding:6px 0;box-shadow:var(--shadow-card);}
  .faq-group-head{display:flex;align-items:center;gap:10px;padding:18px 20px 14px;}
  .faq-group-head h3{font-size:16px;font-weight:700;}
  .faq-item{position:relative;border-top:1px solid var(--border);}
  .faq-item:first-of-type{border-top:0;}
  .faq-q{
    width:100%;display:flex;align-items:flex-start;gap:12px;padding:16px 18px 16px 20px;
    background:transparent;border:0;text-align:left;color:var(--text-1);
    font-size:15.5px;font-weight:600;line-height:1.6;cursor:pointer;
  }
  .faq-q::before{
    content:"";position:absolute;left:8px;top:22px;width:3px;height:18px;border-radius:3px;
    background:var(--primary);opacity:.85;transition:background .2s var(--ease);
  }
  .faq-q span{flex:1 1 auto;}
  .faq-q svg{flex:none;margin-top:4px;color:var(--text-3);transition:transform .24s var(--ease),color .2s var(--ease);}
  .faq-item.open .faq-q svg{transform:rotate(180deg);color:var(--primary);}
  .faq-item.open{background:rgba(108,76,255,.05);}
  .faq-a{max-height:0;overflow:hidden;transition:max-height .3s var(--ease);}
  .faq-a-inner{padding:0 20px 18px 20px;font-size:14.5px;line-height:1.85;color:var(--text-2);}

  /* ---------- compare table ---------- */
  .tbl-wrap{overflow-x:auto;border:1px solid var(--border);border-radius:var(--radius);background:var(--card);box-shadow:var(--shadow-card);}
  table.compare{width:100%;min-width:760px;border-collapse:collapse;font-size:14.5px;}
  table.compare thead th{
    background:rgba(108,76,255,.14);color:var(--text-1);font-size:13.5px;font-weight:700;
    text-align:left;padding:15px 18px;border-bottom:1px solid var(--border);white-space:nowrap;
  }
  table.compare tbody td{padding:16px 18px;color:var(--text-2);border-bottom:1px solid var(--border);vertical-align:top;line-height:1.7;}
  table.compare tbody tr:last-child td{border-bottom:0;}
  table.compare tbody tr:nth-child(odd){background:rgba(255,255,255,.018);}
  table.compare tbody tr:hover{background:rgba(108,76,255,.08);}
  table.compare tbody td:first-child{color:var(--text-1);font-weight:600;}
  .tag-time{display:inline-block;padding:3px 10px;border-radius:6px;font-size:12.5px;background:rgba(43,227,192,.12);color:var(--mint);border:1px solid rgba(43,227,192,.3);white-space:nowrap;}

  /* ---------- self-check ---------- */
  .cover-img{width:100%;aspect-ratio:16/9;object-fit:cover;border-radius:14px;background:#100E1C;}
  .check-list li{display:flex;gap:12px;padding:12px 0;border-bottom:1px dashed var(--border);font-size:14.5px;color:var(--text-2);}
  .check-list li:last-child{border-bottom:0;}
  .check-dot{flex:none;width:22px;height:22px;border-radius:7px;display:grid;place-items:center;background:rgba(43,227,192,.14);color:var(--mint);font-size:12px;font-weight:700;margin-top:2px;}

  /* ---------- form ---------- */
  .form-card{background:var(--card);border:1px solid var(--border);border-radius:20px;padding:28px;box-shadow:var(--shadow-card);}
  .field + .field{margin-top:18px;}
  .field label{display:block;font-size:13.5px;color:var(--text-2);margin-bottom:8px;}
  .control{
    width:100%;height:46px;border-radius:12px;background:#100E1C;border:1px solid var(--border-strong);
    color:var(--text-1);padding:0 14px;font-size:14.5px;outline:none;font-family:inherit;
    transition:border-color .2s var(--ease),box-shadow .2s var(--ease);
  }
  .control::placeholder{color:var(--text-3);}
  .control:focus{border-color:var(--primary);box-shadow:0 0 0 3px rgba(108,76,255,.22);}
  textarea.control{height:auto;min-height:124px;padding:12px 14px;line-height:1.7;resize:vertical;}
  select.control{
    appearance:none;cursor:pointer;padding-right:38px;
    background-image:url("data:image/svg+xml;charset=utf-8,%3Csvg xmlns='http://www.w3.org/2000/svg' width='14' height='14' viewBox='0 0 24 24' fill='none' stroke='%236E6B85' stroke-width='2.4' stroke-linecap='round'%3E%3Cpolyline points='6 9 12 15 18 9'/%3E%3C/svg%3E");
    background-repeat:no-repeat;background-position:right 14px center;
  }
  .form-note{font-size:13px;color:var(--text-3);margin-top:14px;}
  .form-tip{display:none;margin-top:14px;font-size:13.5px;color:var(--mint);}
  .form-tip.show{display:block;}

  /* ---------- cta ---------- */
  .cta-card{
    display:flex;align-items:center;justify-content:space-between;gap:24px;flex-wrap:wrap;
    padding:32px;border-radius:20px;border:1px solid rgba(108,76,255,.34);
    background:linear-gradient(135deg,rgba(108,76,255,.22),rgba(43,227,192,.08));
  }
  .cta-card h2{font-size:clamp(20px,2.6vw,26px);font-weight:700;line-height:1.35;}
  .cta-card p{margin-top:8px;font-size:14.5px;color:var(--text-2);max-width:560px;}

  /* ---------- footer ---------- */
  .site-footer{background:#0A0912;border-top:1px solid var(--border);}
  .foot-title{font-size:14px;font-weight:700;color:var(--text-1);}
  .foot-link{display:inline-block;padding:5px 0;font-size:14px;color:var(--text-2);}
  .foot-link:hover{color:var(--primary);}

  @media (max-width:1023px){
    .nav-search{min-width:0;}
    .section{padding:64px 0;}
    .section-tight{padding:52px 0;}
  }
  @media (max-width:640px){
    .container-x{padding-left:16px;padding-right:16px;}
    .section{padding:56px 0;}
    .hero-banner{min-height:300px;}
    .card{padding:22px;}
    .form-card{padding:22px;}
    .cta-card{padding:24px;}
    body{font-size:15.5px;}
  }