/* roulang page: index */
/* ===================== 设计令牌 ===================== */
:root{
  --c-primary:#6D4DF6;
  --c-primary-dark:#4B32C4;
  --c-primary-light:#A38CFF;
  --c-accent:#22E0C8;
  --c-warn:#FF8A3D;
  --bg-deep:#0A0917;
  --bg-panel:#14132A;
  --bg-panel-2:#1C1A38;
  --line:rgba(124,115,255,.18);
  --line-strong:rgba(163,140,255,.45);
  --tx:#F4F5FF;
  --tx-2:#A9A8C6;
  --tx-3:#6F6E92;
  --white:#FFFFFF;
  --radius:4px;
  --shadow-card:0 2px 0 rgba(0,0,0,.35),0 12px 32px rgba(10,9,23,.6);
  --ease:cubic-bezier(.4,0,.2,1);
  --font-sans:"HarmonyOS Sans SC","PingFang SC","Source Han Sans SC","Noto Sans SC","Microsoft YaHei",sans-serif;
  --font-mono:"JetBrains Mono","Roboto Mono",ui-monospace,SFMono-Regular,Menlo,monospace;
  --container:1240px;
  --cut:polygon(0 0,calc(100% - 8px) 0,100% 8px,100% 100%,0 100%);
}

/* ===================== 基础重置 ===================== */
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  padding:0;
  background:var(--bg-deep);
  color:var(--tx);
  font-family:var(--font-sans);
  font-size:16px;
  font-weight:400;
  line-height:1.85;
  letter-spacing:.01em;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;height:auto;display:block;border:0}
a{color:var(--c-accent);text-decoration:none;transition:color .16s var(--ease)}
a:hover{color:var(--c-primary-light);text-decoration:underline;text-underline-offset:3px;text-decoration-thickness:1px}
h1,h2,h3,h4,h5{margin:0;color:var(--tx);font-family:var(--font-sans);font-weight:800;line-height:1.3;letter-spacing:-.01em}
h1{font-size:40px}
h2{font-size:28px}
h3{font-size:20px}
p{margin:0 0 1.1em}
p:last-child{margin-bottom:0}
ul,ol{margin:0;padding:0;list-style:none}
button{font-family:inherit}
:focus-visible{outline:2px solid var(--c-accent);outline-offset:2px}
::selection{background:rgba(109,77,246,.45);color:#fff}

/* ===================== 布局容器 ===================== */
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 32px}
.grid-margin-x{margin-left:-10px;margin-right:-10px}
.grid-margin-x>.cell{padding-left:10px;padding-right:10px}
.section{position:relative;padding:96px 0}
.section--tint{background:linear-gradient(180deg,rgba(20,19,42,0) 0%,rgba(20,19,42,.6) 50%,rgba(20,19,42,0) 100%)}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:28px;margin-bottom:40px;flex-wrap:wrap}
.sec-title{position:relative;padding-left:16px;font-size:28px}
.sec-title::before{content:"";position:absolute;left:0;top:.2em;bottom:.2em;width:4px;border-radius:2px;background:linear-gradient(180deg,var(--c-primary),var(--c-accent))}
.sec-desc{margin-top:10px;padding-left:16px;font-size:15px;color:var(--tx-2);max-width:640px}
.sec-link{display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:700;color:var(--c-accent);min-height:44px}
.sec-link:hover{color:var(--c-primary-light);text-decoration:none}
.sec-link span{transition:transform .18s var(--ease)}
.sec-link:hover span{transform:translateX(4px)}

/* ===================== 导航 ===================== */
.site-header{
  position:sticky;top:0;z-index:60;
  background:transparent;
  border-bottom:1px solid transparent;
  transition:background .2s var(--ease),border-color .2s var(--ease);
}
.site-header.is-stuck{background:rgba(10,9,23,.92);border-bottom-color:var(--line)}
.nav-inner{display:flex;align-items:center;justify-content:space-between;gap:24px;min-height:74px}
.logo{display:inline-flex;align-items:center;gap:10px;color:var(--tx);font-weight:800;font-size:17px;letter-spacing:.01em;white-space:nowrap}
.logo:hover{color:var(--tx);text-decoration:none}
.logo-mark{width:26px;height:26px;flex:none}
.logo-text{background:linear-gradient(90deg,var(--tx) 40%,var(--c-primary-light) 100%);-webkit-background-clip:text;background-clip:text;color:transparent}
.nav-links{display:flex;align-items:center;gap:6px}
.nav-link{
  position:relative;display:inline-flex;align-items:center;
  min-height:44px;padding:0 14px;
  color:var(--tx-2);font-size:15px;font-weight:500;
  border-radius:3px;
  transition:color .16s var(--ease),background .16s var(--ease);
}
.nav-link:hover{color:var(--tx);text-decoration:none;background:rgba(109,77,246,.07)}
.nav-link::after{
  content:"";position:absolute;left:14px;right:14px;bottom:5px;height:1px;
  background:linear-gradient(90deg,var(--c-primary),var(--c-accent));
  opacity:0;transition:opacity .16s var(--ease);
}
.nav-link:hover::after{opacity:.6}
.nav-link.is-active{color:var(--tx);background:rgba(109,77,246,.10)}
.nav-link.is-active::after{opacity:1;height:2px}
.nav-cta{margin-left:10px}
.nav-toggle{
  display:none;width:46px;height:46px;align-items:center;justify-content:center;
  background:var(--bg-panel);border:1px solid var(--line-strong);border-radius:var(--radius);
  color:var(--tx);cursor:pointer;
}
.nav-toggle span{display:block;width:18px;height:2px;background:var(--tx);position:relative}
.nav-toggle span::before,.nav-toggle span::after{content:"";position:absolute;left:0;width:18px;height:2px;background:var(--tx)}
.nav-toggle span::before{top:-6px}
.nav-toggle span::after{top:6px}

/* 移动抽屉 */
.drawer-mask{position:fixed;inset:0;background:rgba(10,9,23,.72);opacity:0;visibility:hidden;transition:opacity .2s var(--ease),visibility .2s;z-index:80}
.drawer-mask.is-open{opacity:1;visibility:visible}
.drawer{
  position:fixed;top:0;right:0;bottom:0;width:300px;max-width:86vw;z-index:90;
  background:var(--bg-panel);
  background-image:radial-gradient(rgba(163,140,255,.10) 1px,transparent 1px);
  background-size:22px 22px;
  border-left:1px solid var(--line-strong);
  transform:translateX(102%);
  transition:transform .24s var(--ease);
  padding:22px 20px;overflow-y:auto;
}
.drawer.is-open{transform:translateX(0)}
.drawer-head{display:flex;align-items:center;justify-content:space-between;gap:12px;padding-bottom:16px;border-bottom:1px solid var(--line);margin-bottom:14px}
.drawer-title{font-size:15px;font-weight:700;color:var(--tx)}
.drawer-close{width:44px;height:44px;display:inline-flex;align-items:center;justify-content:center;background:transparent;border:1px solid var(--line-strong);border-radius:var(--radius);color:var(--tx-2);cursor:pointer;font-size:18px;line-height:1}
.drawer-close:hover{color:var(--tx);border-color:var(--c-primary-light)}
.drawer-nav{display:flex;flex-direction:column;gap:4px}
.drawer-nav a{
  display:flex;align-items:center;min-height:52px;padding:0 12px 0 14px;
  color:var(--tx-2);font-size:15px;font-weight:500;border-radius:3px;border-left:3px solid transparent;
}
.drawer-nav a:hover{background:rgba(109,77,246,.10);color:var(--tx);text-decoration:none}
.drawer-nav a.is-active{color:var(--tx);border-left-color:var(--c-accent);background:rgba(34,224,200,.08)}
.drawer-cta{margin-top:18px}

/* ===================== 按钮 ===================== */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:44px;padding:0 22px;
  font-size:15px;font-weight:700;letter-spacing:.02em;
  border:0;cursor:pointer;background:none;
  transition:transform .18s var(--ease),background .18s var(--ease),color .18s var(--ease),border-color .18s var(--ease),box-shadow .18s var(--ease);
}
.btn-primary{background:var(--c-primary);color:var(--white);clip-path:var(--cut)}
.btn-primary:hover{background:var(--c-primary-dark);color:var(--white);transform:translateY(-2px);text-decoration:none}
.btn-primary:focus-visible{outline:none;box-shadow:inset 0 0 0 2px var(--c-accent)}
.btn-ghost{background:transparent;color:var(--c-primary-light);border:1px solid var(--line-strong);border-radius:var(--radius)}
.btn-ghost:hover{background:rgba(109,77,246,.14);color:var(--tx);border-color:var(--c-primary-light);text-decoration:none}
.btn-ghost:focus-visible{outline:none;box-shadow:0 0 0 2px rgba(34,224,200,.5)}
.btn-text{background:none;color:var(--c-accent);padding:0;min-height:44px;font-weight:700}
.btn-text:hover{color:var(--c-primary-light);text-decoration:none}
.btn-text i{font-style:normal;transition:transform .18s var(--ease)}
.btn-text:hover i{transform:translateX(-4px)}
.btn-sm{min-height:38px;padding:0 16px;font-size:14px}
.btn:disabled{opacity:.45;cursor:not-allowed;transform:none}
.btn-block{width:100%}

/* ===================== 徽章 / 标签 ===================== */
.badge{
  display:inline-flex;align-items:center;gap:6px;
  padding:4px 10px;font-size:12px;font-family:var(--font-mono);font-weight:600;
  border:1px solid var(--line-strong);border-radius:3px;
  color:var(--c-primary-light);background:rgba(109,77,246,.12);
  letter-spacing:.04em;white-space:nowrap;
}
.badge--accent{color:var(--c-accent);border-color:rgba(34,224,200,.45);background:rgba(34,224,200,.12)}
.badge--warn{color:var(--c-warn);border-color:rgba(255,138,61,.4);background:rgba(255,138,61,.12)}
.tag-cloud{display:flex;flex-wrap:wrap;gap:10px;margin-top:8px}
.tag{
  display:inline-flex;align-items:center;min-height:36px;padding:0 14px;
  font-size:13px;color:var(--tx-2);
  background:var(--bg-panel);border:1px solid var(--line);border-radius:var(--radius);
  transition:color .16s var(--ease),border-color .16s var(--ease),background .16s var(--ease);
}
.tag:hover{color:var(--tx);border-color:var(--line-strong);background:var(--bg-panel-2);text-decoration:none}

/* ===================== Hero ===================== */
.hero{position:relative;padding:84px 0 72px;overflow:hidden}
.hero::before{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:radial-gradient(rgba(163,140,255,.11) 1px,transparent 1px);
  background-size:24px 24px;
  mask-image:linear-gradient(180deg,rgba(0,0,0,.9),rgba(0,0,0,.15));
  -webkit-mask-image:linear-gradient(180deg,rgba(0,0,0,.9),rgba(0,0,0,.15));
}
.hero-orbit{
  position:absolute;right:-160px;top:-120px;width:620px;height:620px;border-radius:50%;
  border:1px solid rgba(163,140,255,.22);pointer-events:none;
}
.hero-orbit::before{content:"";position:absolute;inset:70px;border-radius:50%;border:1px solid rgba(34,224,200,.14)}
.hero-orbit::after{content:"";position:absolute;inset:160px;border-radius:50%;border:1px solid rgba(163,140,255,.12)}
.hero-grid{position:relative;z-index:2;align-items:center}
.hero-eyebrow{display:inline-flex;align-items:center;gap:8px;margin-bottom:20px}
.hero-title{font-size:40px;margin-bottom:18px}
.hero-title em{font-style:normal;color:var(--c-accent)}
.hero-sub{font-size:17px;color:var(--tx-2);max-width:520px;margin-bottom:30px;line-height:1.8}
.hero-actions{display:flex;gap:14px;flex-wrap:wrap;align-items:center}
.hero-visual{position:relative;border:1px solid var(--line-strong);border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow-card);aspect-ratio:16/9}
.hero-visual img{width:100%;height:100%;object-fit:cover}
.hero-visual::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(10,9,23,.10) 0%,rgba(10,9,23,.86) 100%)}
.hero-visual .visual-cap{
  position:absolute;left:20px;right:20px;bottom:16px;z-index:2;
  font-family:var(--font-mono);font-size:12px;color:var(--tx-2);letter-spacing:.04em;
  display:flex;justify-content:space-between;gap:12px;
}
.stat-row{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:16px;margin-top:48px;position:relative;z-index:2}
.stat{
  background:var(--bg-panel);border:1px solid var(--line);
  padding:16px 18px;clip-path:var(--cut);
  transition:border-color .2s var(--ease),transform .2s var(--ease);
}
.stat:hover{border-color:var(--line-strong);transform:translateY(-2px)}
.stat-num{display:block;font-family:var(--font-mono);font-size:22px;font-weight:600;color:var(--c-accent);letter-spacing:0}
.stat-label{display:block;font-size:13px;color:var(--tx-3);margin-top:2px}

/* ===================== 合集目录 ===================== */
.collection-list{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px}
.collection-item{
  position:relative;display:flex;gap:18px;align-items:flex-start;
  padding:22px 24px;background:var(--bg-panel);border:1px solid var(--line);
  clip-path:var(--cut);transition:border-color .2s var(--ease),background .2s var(--ease),transform .2s var(--ease);
}
.collection-item::before{
  content:"";position:absolute;left:0;top:18px;bottom:18px;width:3px;border-radius:2px;
  background:linear-gradient(180deg,var(--c-primary),var(--c-accent));
  transform:scaleY(0);transform-origin:top;transition:transform .22s var(--ease);
}
.collection-item:hover{border-color:var(--line-strong);background:var(--bg-panel-2);transform:translateY(-2px);text-decoration:none}
.collection-item:hover::before{transform:scaleY(1)}
.collection-num{font-family:var(--font-mono);font-size:20px;font-weight:600;color:var(--c-primary-light);line-height:1.4;flex:none}
.collection-body{min-width:0;flex:1}
.collection-name{font-size:18px;font-weight:700;color:var(--tx);display:flex;align-items:center;gap:10px;flex-wrap:wrap}
.collection-name span.count{font-family:var(--font-mono);font-size:12px;font-weight:600;color:var(--tx-3)}
.collection-note{margin-top:8px;font-size:14px;color:var(--tx-2);line-height:1.7}
.collection-arrow{flex:none;align-self:center;color:var(--c-accent);font-size:18px;transition:transform .2s var(--ease)}
.collection-item:hover .collection-arrow{transform:translateX(4px)}

/* ===================== 卡片通用 ===================== */
.card{
  background:var(--bg-panel);border:1px solid var(--line);
  clip-path:var(--cut);transition:border-color .2s var(--ease),transform .2s var(--ease),background .2s var(--ease);
}
.card:hover{border-color:var(--line-strong);transform:translateY(-2px);background:var(--bg-panel-2);text-decoration:none}
.card-media{overflow:hidden;background:var(--bg-panel-2);position:relative}
.card-media img{width:100%;height:100%;object-fit:cover;transition:transform .3s var(--ease)}
.card:hover .card-media img{transform:scale(1.03)}
.card-body{padding:20px 22px}
.card-title{font-size:18px;font-weight:700;color:var(--tx);line-height:1.5}
.card-sum{margin-top:10px;font-size:14px;color:var(--tx-2);line-height:1.75}
.card-meta{display:flex;align-items:center;gap:10px;flex-wrap:wrap;margin-top:14px;font-family:var(--font-mono);font-size:12px;color:var(--tx-3)}

/* 精选条目 */
.feature-lead{display:grid;grid-template-columns:1.05fr 1fr;gap:0;overflow:hidden}
.feature-lead .card-media{aspect-ratio:16/9;height:100%;min-height:260px}
.feature-lead .card-body{padding:30px 32px;display:flex;flex-direction:column;justify-content:center}
.feature-lead .card-title{font-size:24px}
.feature-lead .card-sum{font-size:15px}
.mini-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:20px;margin-top:20px}
.mini-card .card-media{aspect-ratio:16/9}
.mini-card .card-title{font-size:17px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}

/* ===================== 最新信息（CMS 区） ===================== */
.news-list{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:18px}
.news-card{
  display:flex;gap:16px;padding:16px;background:var(--bg-panel);border:1px solid var(--line);
  clip-path:var(--cut);transition:border-color .2s var(--ease),background .2s var(--ease),transform .2s var(--ease);
}
.news-card:hover{border-color:var(--line-strong);background:var(--bg-panel-2);transform:translateY(-2px);text-decoration:none}
.news-thumb{width:136px;height:92px;flex:none;overflow:hidden;border:1px solid var(--line);background:var(--bg-panel-2)}
.news-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .3s var(--ease)}
.news-card:hover .news-thumb img{transform:scale(1.05)}
.news-body{min-width:0;flex:1;display:flex;flex-direction:column}
.news-title{
  font-size:16px;font-weight:700;color:var(--tx);line-height:1.55;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.news-sum{
  margin-top:6px;font-size:13px;color:var(--tx-2);line-height:1.7;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.news-meta{display:flex;align-items:center;gap:10px;flex-wrap:wrap;margin-top:auto;padding-top:10px;font-family:var(--font-mono);font-size:12px;color:var(--tx-3)}
.empty-state{
  padding:56px 24px;text-align:center;background:var(--bg-panel);
  border:1px dashed var(--line-strong);border-radius:var(--radius);
}
.empty-figure{
  width:64px;height:64px;margin:0 auto 18px;border-radius:50%;
  border:1px solid var(--line-strong);
  background:radial-gradient(circle at 50% 50%,rgba(109,77,246,.35),transparent 62%);
}
.empty-title{font-size:17px;font-weight:700;color:var(--tx);margin-bottom:8px}
.empty-desc{font-size:14px;color:var(--tx-2);margin-bottom:20px}

/* ===================== 相关推荐 ===================== */
.rec-scroll{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:18px}
.rec-card{display:block;background:var(--bg-panel);border:1px solid var(--line);clip-path:var(--cut);transition:border-color .2s var(--ease),transform .2s var(--ease)}
.rec-card:hover{border-color:var(--line-strong);transform:translateY(-2px);text-decoration:none}
.rec-card .card-media{aspect-ratio:4/3}
.rec-card .card-body{padding:16px 18px}
.rec-card .card-title{font-size:15px;line-height:1.6;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.rec-card .card-meta{margin-top:10px}

/* ===================== 收藏 / 分享 CTA ===================== */
.cta-strip{
  position:relative;display:flex;align-items:center;justify-content:space-between;gap:28px;flex-wrap:wrap;
  padding:30px 34px;background:var(--bg-panel);border:1px solid var(--line-strong);
  border-radius:var(--radius);overflow:hidden;
}
.cta-strip::before{content:"";position:absolute;left:0;top:0;bottom:0;width:4px;background:linear-gradient(180deg,var(--c-primary),var(--c-accent))}
.cta-strip::after{
  content:"";position:absolute;right:-80px;top:-80px;width:280px;height:280px;border-radius:50%;
  border:1px solid rgba(163,140,255,.18);pointer-events:none;
}
.cta-copy{position:relative;z-index:2;max-width:560px}
.cta-title{font-size:22px;margin-bottom:8px}
.cta-desc{font-size:14px;color:var(--tx-2)}
.cta-actions{position:relative;z-index:2;display:flex;gap:14px;flex-wrap:wrap;align-items:center}
.copy-tip{font-size:13px;font-family:var(--font-mono);color:var(--c-accent);min-height:22px}

/* ===================== FAQ ===================== */
.faq{max-width:920px;margin:0 auto}
.faq-item{background:var(--bg-panel);border:1px solid var(--line);margin-bottom:12px;border-radius:var(--radius);overflow:hidden;transition:border-color .2s var(--ease)}
.faq-item:hover{border-color:var(--line-strong)}
.faq-item.is-open{border-color:var(--line-strong)}
.faq-q{
  display:flex;align-items:center;justify-content:space-between;gap:18px;width:100%;
  min-height:60px;padding:16px 22px;text-align:left;background:none;border:0;
  color:var(--tx);font-size:17px;font-weight:700;cursor:pointer;line-height:1.6;
}
.faq-q:hover{color:var(--c-primary-light)}
.faq-ico{
  flex:none;width:22px;height:22px;position:relative;
  transition:transform .22s var(--ease);
}
.faq-ico::before,.faq-ico::after{content:"";position:absolute;background:var(--c-accent);border-radius:1px}
.faq-ico::before{left:0;top:10px;width:22px;height:2px}
.faq-ico::after{left:10px;top:0;width:2px;height:22px}
.faq-item.is-open .faq-ico{transform:rotate(45deg)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .22s var(--ease)}
.faq-item.is-open .faq-a{box-shadow:inset 2px 0 0 var(--c-accent)}
.faq-a-inner{padding:0 22px 20px 22px;font-size:15px;color:var(--tx-2);line-height:1.85}

/* ===================== 页脚 ===================== */
.site-footer{position:relative;margin-top:20px;padding:64px 0 0;background:var(--bg-panel);border-top:1px solid var(--line)}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:36px;padding-bottom:44px}
.footer-brand .logo{margin-bottom:16px}
.footer-desc{font-size:14px;color:var(--tx-2);line-height:1.8;max-width:300px}
.footer-title{font-size:14px;font-weight:700;color:var(--tx);margin-bottom:16px;letter-spacing:.04em}
.footer-links{display:flex;flex-direction:column;gap:2px}
.footer-links a{display:inline-flex;align-items:center;min-height:40px;font-size:14px;color:var(--tx-2)}
.footer-links a:hover{color:var(--c-accent);text-decoration:none}
.footer-note{font-size:13px;color:var(--tx-3);line-height:1.8}
.footer-bottom{
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  padding:20px 0 28px;border-top:1px solid var(--line);
  font-size:13px;color:var(--tx-3);font-family:var(--font-mono);
}
.footer-bottom a{color:var(--tx-3)}
.footer-bottom a:hover{color:var(--c-accent)}

/* ===================== 响应式 ===================== */
@media screen and (max-width:1279px){
  .container{padding:0 24px}
}
@media screen and (max-width:1023px){
  .nav-links{display:none}
  .nav-toggle{display:inline-flex}
  .hero{padding:60px 0 56px}
  .hero-title{font-size:32px}
  .hero-visual{margin-top:36px}
  .section{padding:72px 0}
  .sec-title{font-size:24px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px}
  .rec-scroll{display:flex;gap:16px;overflow-x:auto;padding-bottom:12px;scroll-snap-type:x mandatory}
  .rec-card{flex:0 0 260px;scroll-snap-align:start}
  .rec-scroll::-webkit-scrollbar{height:4px}
  .rec-scroll::-webkit-scrollbar-thumb{background:var(--line-strong);border-radius:4px}
}
@media screen and (max-width:767px){
  .container{padding:0 20px}
  .hero-title{font-size:28px}
  .hero-sub{font-size:16px}
  .hero-actions .btn{width:100%}
  .stat-row{grid-template-columns:repeat(2,minmax(0,1fr))}
  .collection-list{grid-template-columns:1fr}
  .feature-lead{grid-template-columns:1fr}
  .feature-lead .card-media{min-height:0;aspect-ratio:16/9}
  .feature-lead .card-body{padding:22px 20px}
  .mini-grid{grid-template-columns:1fr}
  .news-list{grid-template-columns:1fr}
  .cta-strip{padding:24px 22px}
  .cta-actions{width:100%}
  .cta-actions .btn{width:100%}
  .faq-q{font-size:16px}
  .footer-grid{grid-template-columns:1fr;gap:20px}
}
@media screen and (max-width:520px){
  h1{font-size:26px}
  .hero-title{font-size:26px}
  .sec-title{font-size:21px}
  .section{padding:48px 0}
  .news-card{flex-direction:column}
  .news-thumb{width:100%;height:150px}
  .stat-num{font-size:19px}
  .footer-bottom{font-size:12px}
}

/* roulang page: article */
:root{
  --primary:#6D4DF6;
  --primary-deep:#4B32C4;
  --primary-light:#A38CFF;
  --cyan:#22E0C8;
  --orange:#FF8A3D;
  --bg:#0A0917;
  --panel:#14132A;
  --panel-2:#1C1A38;
  --line:rgba(124,115,255,.18);
  --line-strong:rgba(163,140,255,.45);
  --text:#F4F5FF;
  --text-2:#A9A8C6;
  --text-3:#6F6E92;
  --white:#FFFFFF;
  --radius:4px;
  --radius-lg:12px;
  --shadow:0 2px 0 rgba(0,0,0,.35), 0 12px 32px rgba(10,9,23,.6);
  --sans:"HarmonyOS Sans SC","PingFang SC","Source Han Sans SC","Noto Sans SC","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  --mono:"JetBrains Mono","Roboto Mono",ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;
  --gap-s:16px;
  --gap-m:24px;
  --gap-l:96px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;padding:0;background:var(--bg);color:var(--text);
  font-family:var(--sans);font-size:16px;line-height:1.85;letter-spacing:.01em;
  -webkit-font-smoothing:antialiased;overflow-x:hidden;
}
img{max-width:100%;height:auto;display:block;border:0;}
a{color:var(--cyan);text-decoration:none;transition:color .16s ease,border-color .16s ease;}
a:hover{color:var(--primary-light);}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4{margin:0;font-weight:800;letter-spacing:-.01em;line-height:1.3;color:var(--text);}
p{margin:0;}
button{font-family:inherit;}
:focus-visible{outline:2px solid var(--cyan);outline-offset:2px;}
.container{width:100%;max-width:1240px;margin:0 auto;padding:0 32px;}
.mono{font-family:var(--mono);font-weight:600;letter-spacing:0;}
.section{padding:var(--gap-l) 0;position:relative;}
.section-line{border-top:1px solid var(--line);}
.section-head{margin-bottom:36px;max-width:760px;}
.section-head h2{font-size:28px;padding-left:14px;position:relative;margin-bottom:12px;}
.section-head h2::before{content:"";position:absolute;left:0;top:6px;bottom:6px;width:3px;border-radius:2px;background:linear-gradient(180deg,var(--primary),var(--cyan));}
.section-head p{color:var(--text-2);font-size:15px;}
.eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:12px;font-family:var(--mono);color:var(--cyan);letter-spacing:.14em;text-transform:uppercase;margin-bottom:10px;}

/* ---------- header / nav ---------- */
.site-header{position:sticky;top:0;z-index:60;background:transparent;border-bottom:1px solid transparent;transition:background .2s ease,border-color .2s ease;}
.site-header.is-scrolled,.site-header.menu-open{background:rgba(10,9,23,.94);border-bottom-color:var(--line);}
.nav-inner{display:flex;align-items:center;justify-content:space-between;gap:24px;min-height:76px;}
.logo{display:inline-flex;align-items:center;gap:10px;text-decoration:none;flex:0 0 auto;}
.logo:hover{color:inherit;}
.logo-mark{width:32px;height:32px;flex:0 0 32px;}
.logo-text{font-size:18px;font-weight:800;color:var(--text);letter-spacing:.01em;white-space:nowrap;}
.nav-links{display:flex;align-items:center;gap:4px;}
.nav-link{position:relative;display:inline-flex;align-items:center;min-height:44px;padding:0 14px;font-size:15px;color:var(--text-2);border-bottom:1px solid transparent;transition:color .16s ease,border-color .16s ease,background .16s ease;}
.nav-link:hover{color:var(--text);border-bottom-color:var(--line-strong);}
.nav-link.is-active{color:var(--text);background:rgba(109,77,246,.10);}
.nav-link.is-active::after{content:"";position:absolute;left:12px;right:12px;bottom:-1px;height:2px;border-radius:2px;background:linear-gradient(90deg,var(--primary),var(--cyan));}
.nav-cta{margin-left:10px;}
.nav-toggle{display:none;width:44px;height:44px;background:transparent;border:1px solid var(--line-strong);border-radius:var(--radius);position:relative;cursor:pointer;z-index:95;}
.nav-toggle span,.nav-toggle::before,.nav-toggle::after{content:"";position:absolute;left:12px;right:12px;height:2px;background:var(--text);border-radius:2px;transition:transform .2s ease,opacity .2s ease;}
.nav-toggle::before{top:14px;}
.nav-toggle span{top:21px;}
.nav-toggle::after{top:28px;}
.nav-toggle.is-open::before{transform:translateY(7px) rotate(45deg);}
.nav-toggle.is-open span{opacity:0;}
.nav-toggle.is-open::after{transform:translateY(-7px) rotate(-45deg);}
.nav-overlay{position:fixed;inset:0;background:rgba(10,9,23,.72);opacity:0;visibility:hidden;transition:opacity .2s ease;z-index:70;}

/* ---------- buttons ---------- */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;min-height:44px;padding:0 22px;border-radius:var(--radius);font-size:15px;font-weight:600;border:1px solid transparent;cursor:pointer;transition:transform .18s ease,background .18s ease,border-color .18s ease,color .18s ease;}
.btn-primary{background:var(--primary);color:var(--white);clip-path:polygon(0 0,calc(100% - 8px) 0,100% 8px,100% 100%,0 100%);}
.btn-primary:hover{background:#7D60FF;color:var(--white);transform:translateY(-2px);}
.btn-ghost{background:transparent;border-color:var(--line-strong);color:var(--primary-light);}
.btn-ghost:hover{background:rgba(109,77,246,.14);color:var(--text);border-color:var(--primary-light);}
.btn-sm{min-height:38px;padding:0 16px;font-size:14px;}
.btn-link{background:none;border:none;padding:0;min-height:auto;color:var(--cyan);font-weight:600;font-size:15px;}
.btn-link:hover{color:var(--primary-light);}
.btn-link i{margin-right:6px;transition:transform .18s ease;}
.btn-link:hover i{transform:translateX(-4px);}
.btn[disabled],.btn.is-disabled{opacity:.45;pointer-events:none;}

/* ---------- badge / tag ---------- */
.badge{display:inline-flex;align-items:center;gap:6px;font-size:12px;font-family:var(--mono);padding:4px 10px;border-radius:3px;border:1px solid var(--line);color:var(--text-2);background:rgba(255,255,255,.02);}
.badge-primary{color:var(--primary-light);border-color:rgba(109,77,246,.5);background:rgba(109,77,246,.12);}
.badge-cyan{color:var(--cyan);border-color:rgba(34,224,200,.45);background:rgba(34,224,200,.12);}
.badge-orange{color:var(--orange);border-color:rgba(255,138,61,.42);background:rgba(255,138,61,.12);}
.tag-cloud{display:flex;flex-wrap:wrap;gap:10px;}

/* ---------- page head ---------- */
.page-head{position:relative;padding:56px 0 40px;border-bottom:1px solid var(--line);overflow:hidden;background:linear-gradient(180deg,rgba(20,19,42,.85),rgba(10,9,23,.96)),url("/assets/images/backpic/back-2.png") center/cover no-repeat;}
.page-head::after{content:"";position:absolute;inset:0;background-image:radial-gradient(rgba(163,140,255,.14) 1px,transparent 1px);background-size:26px 26px;opacity:.5;pointer-events:none;}
.page-head .container{position:relative;z-index:2;}
.crumbs{display:flex;flex-wrap:wrap;align-items:center;gap:10px;font-size:13px;color:var(--text-3);margin-bottom:22px;}
.crumbs a{color:var(--text-2);}
.crumbs a:hover{color:var(--cyan);}
.crumbs .sep{color:var(--line-strong);}
.crumbs .current{color:var(--text-3);max-width:52ch;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;}
.article-head h1{font-size:40px;margin:16px 0 18px;max-width:22ch;}
.article-meta{display:flex;flex-wrap:wrap;align-items:center;gap:10px 22px;font-size:13px;color:var(--text-2);}
.article-meta .meta-item{display:inline-flex;align-items:center;gap:7px;}
.article-meta i{color:var(--primary-light);}
.article-meta .value{font-family:var(--mono);color:var(--text);}

/* ---------- article layout ---------- */
.article-layout{padding:56px 0 0;}
.article-main{min-width:0;}
.article-body{font-size:17px;line-height:1.9;color:#DCDBF0;max-width:800px;}
.article-body p{margin:0 0 1.2em;}
.article-body h2{font-size:28px;margin:44px 0 16px;padding-left:14px;border-left:3px solid var(--primary);line-height:1.35;}
.article-body h3{font-size:20px;color:var(--primary-light);margin:30px 0 12px;}
.article-body h4{font-size:17px;margin:22px 0 10px;color:var(--text);}
.article-body a{color:var(--cyan);border-bottom:1px solid transparent;}
.article-body a:hover{color:var(--primary-light);border-bottom-color:var(--primary-light);}
.article-body ul,.article-body ol{margin:0 0 1.2em;padding-left:0;}
.article-body ul>li,.article-body ol>li{position:relative;padding-left:24px;margin-bottom:10px;}
.article-body ul>li::before{content:"";position:absolute;left:2px;top:.75em;width:7px;height:7px;background:var(--primary-light);transform:rotate(45deg);border-radius:1px;}
.article-body ol{counter-reset:art;}
.article-body ol>li{counter-increment:art;}
.article-body ol>li::before{content:counter(art,decimal-leading-zero);position:absolute;left:0;top:0;font-family:var(--mono);font-size:13px;color:var(--cyan);}
.article-body blockquote{margin:26px 0;padding:18px 22px;background:var(--panel);border-left:3px solid var(--cyan);border-radius:0 var(--radius) var(--radius) 0;color:var(--text-2);}
.article-body blockquote p:last-child{margin-bottom:0;}
.article-body img{border-radius:var(--radius-lg);margin:24px 0;border:1px solid var(--line);}
.article-body figure{margin:26px 0;}
.article-body figcaption{font-size:12px;color:var(--text-3);text-align:center;margin-top:10px;}
.article-body code{font-family:var(--mono);font-size:.92em;background:rgba(109,77,246,.16);color:var(--primary-light);padding:2px 6px;border-radius:3px;}
.article-body pre{background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);padding:18px;overflow-x:auto;margin:24px 0;font-size:14px;line-height:1.7;}
.article-body pre code{background:none;color:#CFCBFF;padding:0;}
.article-body table{width:100%;border-collapse:collapse;margin:24px 0;font-size:15px;}
.article-body th,.article-body td{border:1px solid var(--line);padding:11px 14px;text-align:left;color:var(--text-2);}
.article-body th{background:var(--panel);color:var(--text);font-weight:700;}
.article-body hr{border:none;border-top:1px solid var(--line);margin:36px 0;}

.article-foot{margin-top:44px;padding-top:26px;border-top:1px solid var(--line);}
.article-foot .foot-label{font-size:13px;color:var(--text-3);margin-bottom:12px;}
.share-bar{display:flex;flex-wrap:wrap;align-items:center;gap:12px;margin-top:26px;padding:18px 20px;background:var(--panel);border:1px solid var(--line);border-left:4px solid var(--primary);border-radius:var(--radius);}
.share-bar .share-text{font-size:14px;color:var(--text-2);margin-right:auto;}
.copy-hint{font-size:13px;color:var(--cyan);min-width:96px;}

/* ---------- sidebar ---------- */
.article-side{min-width:0;}
.side-sticky{position:static;}
.side-card{background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);padding:22px;margin-bottom:20px;}
.side-card h3{font-size:16px;margin-bottom:14px;display:flex;align-items:center;gap:8px;}
.side-card h3::before{content:"";width:3px;height:14px;border-radius:2px;background:linear-gradient(180deg,var(--primary),var(--cyan));}
.side-list li{border-bottom:1px solid var(--line);}
.side-list li:last-child{border-bottom:none;}
.side-list a{display:flex;align-items:center;gap:12px;min-height:56px;padding:8px 10px;color:var(--text-2);font-size:14px;border-radius:var(--radius);transition:background .18s ease,color .18s ease;}
.side-list a:hover{background:rgba(109,77,246,.10);color:var(--text);}
.side-list .idx{font-family:var(--mono);font-size:12px;color:var(--primary-light);flex:0 0 22px;}
.side-list .arrow{margin-left:auto;color:var(--text-3);transition:transform .18s ease;}
.side-list a:hover .arrow{transform:translateX(4px);color:var(--cyan);}
.side-note{font-size:13px;color:var(--text-3);line-height:1.8;}
.side-mini{display:flex;gap:12px;padding:12px 0;border-bottom:1px solid var(--line);}
.side-mini:last-child{border-bottom:none;padding-bottom:0;}
.side-mini img{width:76px;height:56px;object-fit:cover;border-radius:var(--radius);border:1px solid var(--line);flex:0 0 76px;}
.side-mini .mini-title{font-size:14px;color:var(--text);line-height:1.5;display:block;}
.side-mini .mini-title:hover{color:var(--primary-light);}
.side-mini .mini-meta{font-size:12px;color:var(--text-3);font-family:var(--mono);margin-top:4px;display:block;}

/* ---------- cards ---------- */
.card{position:relative;background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow);transition:border-color .2s ease,transform .2s ease;}
.card:hover{border-color:var(--line-strong);transform:translateY(-2px);}
.card-cut{clip-path:polygon(0 0,calc(100% - 8px) 0,100% 8px,100% 100%,0 100%);}
.card-media{position:relative;aspect-ratio:16/9;overflow:hidden;border-radius:var(--radius) var(--radius) 0 0;background:linear-gradient(135deg,rgba(109,77,246,.35),rgba(34,224,200,.16));}
.card-media img{width:100%;height:100%;object-fit:cover;transition:transform .2s ease;}
.card:hover .card-media img{transform:scale(1.03);}
.card-body{padding:20px;}
.card-body h3{font-size:18px;line-height:1.5;margin-bottom:10px;}
.card-body h3 a{color:var(--text);}
.card-body h3 a:hover{color:var(--primary-light);}
.card-body p{font-size:14px;color:var(--text-2);line-height:1.75;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.card-meta{display:flex;align-items:center;gap:12px;margin-top:14px;font-size:12px;color:var(--text-3);font-family:var(--mono);}

/* ---------- collection rows ---------- */
.row-list{border-top:1px solid var(--line);}
.row-item{display:flex;align-items:center;gap:16px;min-height:78px;padding:14px 12px;border-bottom:1px solid var(--line);color:var(--text-2);transition:background .18s ease,color .18s ease;}
.row-item:hover{background:rgba(109,77,246,.10);color:var(--text);}
.row-item .num{font-family:var(--mono);font-size:13px;color:var(--primary-light);flex:0 0 34px;}
.row-item .row-title{font-size:16px;font-weight:700;color:var(--text);}
.row-item .row-desc{font-size:13px;color:var(--text-3);margin-top:4px;}
.row-item .arrow{margin-left:auto;color:var(--text-3);transition:transform .18s ease,color .18s ease;}
.row-item:hover .arrow{transform:translateX(4px);color:var(--cyan);}

/* ---------- FAQ ---------- */
.faq-list{border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;background:var(--panel);}
.faq-item+.faq-item{border-top:1px solid var(--line);}
.faq-q{display:flex;align-items:center;justify-content:space-between;gap:18px;width:100%;min-height:64px;padding:16px 22px;background:transparent;border:none;color:var(--text);font-size:16px;font-weight:700;text-align:left;cursor:pointer;transition:background .18s ease;}
.faq-q:hover{background:rgba(109,77,246,.10);}
.faq-icon{flex:0 0 20px;color:var(--primary-light);font-size:15px;transition:transform .22s ease;}
.faq-item.is-open .faq-q{background:rgba(109,77,246,.08);}
.faq-item.is-open .faq-icon{transform:rotate(180deg);color:var(--cyan);}
.faq-a{max-height:0;overflow:hidden;transition:max-height .22s ease;}
.faq-a-inner{padding:2px 22px 22px;border-left:2px solid var(--cyan);margin-left:22px;color:var(--text-2);font-size:15px;line-height:1.85;}

/* ---------- CTA strip ---------- */
.cta-strip{display:flex;flex-wrap:wrap;align-items:center;gap:22px;background:var(--panel);border:1px solid var(--line);border-left:4px solid var(--primary);border-radius:var(--radius);padding:28px 30px;box-shadow:var(--shadow);}
.cta-strip .cta-text{flex:1 1 380px;min-width:0;}
.cta-strip h2{font-size:22px;margin-bottom:8px;}
.cta-strip p{font-size:14px;color:var(--text-2);}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px;}

/* ---------- empty state ---------- */
.empty-state{max-width:680px;margin:0 auto;padding:64px 32px 72px;text-align:center;}
.empty-state .empty-mark{width:88px;height:88px;margin:0 auto 22px;border-radius:50%;border:1px solid var(--line-strong);display:flex;align-items:center;justify-content:center;background:radial-gradient(circle at 50% 50%,rgba(109,77,246,.24),rgba(10,9,23,0));}
.empty-state .empty-mark i{font-size:30px;color:var(--primary-light);}
.empty-state h1{font-size:28px;margin-bottom:14px;}
.empty-state p{color:var(--text-2);font-size:15px;margin-bottom:26px;}

/* ---------- footer ---------- */
.site-footer{margin-top:var(--gap-l);background:var(--panel);border-top:1px solid var(--line);padding:64px 0 0;}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:36px;}
.footer-brand .logo{margin-bottom:16px;}
.footer-desc{font-size:13px;color:var(--text-3);line-height:1.9;max-width:34ch;}
.footer-title{font-size:14px;font-weight:700;color:var(--text);margin-bottom:16px;}
.footer-links{display:flex;flex-direction:column;gap:4px;}
.footer-links a{display:inline-flex;align-items:center;min-height:38px;font-size:14px;color:var(--text-2);}
.footer-links a:hover{color:var(--cyan);}
.footer-note{font-size:13px;color:var(--text-3);line-height:1.9;}
.footer-bottom{margin-top:48px;padding:22px 0;border-top:1px solid var(--line);display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;font-size:13px;color:var(--text-3);font-family:var(--mono);}

/* ---------- responsive ---------- */
@media (max-width:1279px){
  .side-sticky{position:static;}
}
@media (max-width:1023px){
  .container{padding:0 24px;}
  .section{padding:72px 0;}
  .article-head h1{font-size:32px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px;}
  .nav-toggle{display:block;}
  .nav-links{position:fixed;top:0;right:0;height:100%;width:300px;max-width:320px;background:var(--panel);background-image:radial-gradient(rgba(163,140,255,.12) 1px,transparent 1px);background-size:24px 24px;border-left:1px solid var(--line);flex-direction:column;align-items:stretch;gap:0;padding:92px 20px 28px;transform:translateX(105%);transition:transform .24s ease;overflow-y:auto;z-index:90;}
  .nav-links.is-open{transform:translateX(0);}
  .nav-link{min-height:52px;padding:0 14px;border-bottom:1px solid var(--line);font-size:15px;}
  .nav-link.is-active::after{left:0;right:auto;bottom:8px;top:8px;width:3px;height:auto;background:var(--cyan);}
  .nav-link.is-active{background:rgba(109,77,246,.08);}
  .nav-cta{margin:18px 0 0;width:100%;}
  .nav-overlay.is-open{opacity:1;visibility:visible;}
  .article-body{max-width:none;}
}
@media (max-width:767px){
  .container{padding:0 16px;}
  .section{padding:48px 0;}
  .logo-text{font-size:16px;}
  .page-head{padding:40px 0 30px;}
  .article-head h1{font-size:26px;}
  .article-layout{padding:36px 0 0;}
  .article-body{font-size:16px;line-height:1.85;}
  .article-body h2{font-size:21px;margin-top:34px;}
  .article-body h3{font-size:17px;}
  .section-head h2{font-size:21px;}
  .cta-strip{padding:22px 20px;}
  .cta-actions{width:100%;}
  .cta-actions .btn{width:100%;}
  .faq-q{font-size:15px;padding:14px 16px;}
  .faq-a-inner{margin-left:0;padding:0 16px 18px;border-left:none;}
  .footer-grid{grid-template-columns:1fr;}
  .footer-bottom{flex-direction:column;}
  .crumbs .current{max-width:30ch;}
}

/* roulang page: category1 */
:root{
  --star-purple:#6D4DF6;
  --star-purple-dark:#4B32C4;
  --star-purple-light:#A38CFF;
  --electric:#22E0C8;
  --spark:#FF8A3D;
  --bg:#0A0917;
  --panel:#14132A;
  --panel-2:#1C1A38;
  --line:rgba(124,115,255,.18);
  --line-strong:rgba(163,140,255,.45);
  --text:#F4F5FF;
  --text-2:#A9A8C6;
  --text-3:#6F6E92;
  --white:#FFFFFF;
  --radius:4px;
  --radius-lg:12px;
  --shadow-card:0 2px 0 rgba(0,0,0,.35),0 12px 32px rgba(10,9,23,.6);
  --font-sans:"HarmonyOS Sans SC","PingFang SC","Source Han Sans SC","Noto Sans SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  --font-mono:"JetBrains Mono","Roboto Mono",ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;
  --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:var(--font-sans);
  font-size:16px;
  line-height:1.85;
  letter-spacing:.01em;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{display:block;max-width:100%;height:auto}
svg{display:block}
a{color:var(--electric);text-decoration:none;transition:color .18s ease}
a:hover{color:var(--star-purple-light);text-decoration:underline;text-underline-offset:3px;text-decoration-thickness:1px}
h1,h2,h3,h4{margin:0;color:var(--text);font-weight:800;letter-spacing:-.01em;line-height:1.35}
p{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
button{font-family:inherit;font-size:inherit;cursor:pointer;border:0;background:none;color:inherit}
table{border-collapse:collapse;width:100%;margin:0}
:focus-visible{outline:2px solid var(--electric);outline-offset:2px;border-radius:var(--radius)}
.skip-link{position:absolute;left:-9999px;top:0;background:var(--star-purple);color:#fff;padding:10px 16px;z-index:200}
.skip-link:focus{left:12px;top:12px}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 32px}
.section{padding:96px 0}
.section-tight{padding:72px 0}
.section-head{max-width:820px;margin-bottom:36px}
.section-title{position:relative;padding-left:15px;font-size:28px;margin-bottom:12px}
.section-title::before{content:"";position:absolute;left:0;top:6px;bottom:6px;width:3px;border-radius:2px;background:linear-gradient(180deg,var(--star-purple),var(--electric))}
.section-sub{color:var(--text-2);font-size:15px;line-height:1.8}
.eyebrow{display:inline-block;font-family:var(--font-mono);font-size:12px;letter-spacing:.08em;color:var(--electric);border:1px solid rgba(34,224,200,.32);background:rgba(34,224,200,.10);padding:4px 10px;border-radius:var(--radius);margin-bottom:16px}
.divider{height:1px;background:var(--line);border:0;margin:0}

/* header */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(10,9,23,0);
  border-bottom:1px solid transparent;
  transition:background .25s ease,border-color .25s ease;
}
.site-header.is-scrolled{background:rgba(10,9,23,.92);border-bottom:1px solid var(--line)}
.nav-inner{display:flex;align-items:center;justify-content:space-between;gap:16px;min-height:74px}
.logo{display:inline-flex;align-items:center;gap:10px;color:var(--text)}
.logo:hover{color:var(--text);text-decoration:none}
.logo-mark{width:30px;height:30px;flex:0 0 auto}
.logo-text{font-size:18px;font-weight:800;letter-spacing:-.01em;white-space:nowrap}
.nav-links{display:flex;align-items:center;gap:4px}
.nav-link{position:relative;display:inline-flex;align-items:center;min-height:44px;padding:0 15px;font-size:15px;color:var(--text-2);background:transparent;transition:color .16s ease,background .16s ease}
.nav-link:hover{color:var(--text);background:rgba(109,77,246,.08);text-decoration:none}
.nav-link.is-active{color:var(--text);background:rgba(109,77,246,.10)}
.nav-link.is-active::after{content:"";position:absolute;left:15px;right:15px;bottom:10px;height:2px;background:linear-gradient(90deg,var(--star-purple),var(--electric))}
.nav-cta{margin-left:10px}
.nav-toggle{display:none;width:44px;height:44px;border:1px solid var(--line);border-radius:var(--radius);background:rgba(20,19,42,.72);position:relative}
.nav-toggle span,
.nav-toggle span::before,
.nav-toggle span::after{position:absolute;left:50%;width:18px;height:2px;background:var(--text);border-radius:2px;transform:translateX(-50%);transition:transform .22s ease,opacity .22s ease}
.nav-toggle span{top:50%;margin-top:-1px}
.nav-toggle span::before{content:"";top:-6px;left:0;transform:none}
.nav-toggle span::after{content:"";top:6px;left:0;transform:none}
.nav-toggle[aria-expanded="true"] span{background:transparent}
.nav-toggle[aria-expanded="true"] span::before{transform:rotate(45deg);top:0}
.nav-toggle[aria-expanded="true"] span::after{transform:rotate(-45deg);top:0}

/* drawer */
.nav-overlay{position:fixed;inset:0;background:rgba(10,9,23,.72);opacity:0;visibility:hidden;transition:opacity .26s ease,visibility .26s ease;z-index:70}
.nav-overlay.is-open{opacity:1;visibility:visible}
.nav-drawer{
  position:fixed;top:0;right:0;bottom:0;width:min(320px,86vw);
  background:var(--panel);border-left:1px solid var(--line);
  transform:translateX(100%);transition:transform .26s ease;z-index:80;
  padding:22px 18px;overflow-y:auto;
  background-image:radial-gradient(rgba(163,140,255,.14) 1px,transparent 1px);
  background-size:22px 22px;
}
.nav-drawer.is-open{transform:translateX(0)}
.drawer-head{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:18px}
.drawer-title{font-size:13px;color:var(--text-3);font-family:var(--font-mono)}
.drawer-close{width:44px;height:44px;border:1px solid var(--line);border-radius:var(--radius);color:var(--text-2);font-size:18px;line-height:1}
.drawer-close:hover{color:var(--text);border-color:var(--line-strong)}
.drawer-nav{display:flex;flex-direction:column;gap:6px}
.drawer-link{display:block;padding:13px 14px;border-radius:var(--radius);color:var(--text-2);font-size:15px;background:rgba(28,26,56,.5)}
.drawer-link:hover{color:var(--text);background:var(--panel-2);text-decoration:none}
.drawer-link.is-active{color:var(--text);box-shadow:inset 3px 0 0 var(--electric);background:rgba(109,77,246,.12)}

/* buttons */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:44px;padding:0 22px;border-radius:var(--radius);
  font-size:15px;font-weight:700;letter-spacing:.01em;border:1px solid transparent;
  transition:transform .18s ease,background .18s ease,border-color .18s ease,color .18s ease,filter .18s ease;
}
.btn:hover{text-decoration:none}
.btn-primary{background:var(--star-purple);color:var(--white);clip-path:polygon(0 0,calc(100% - 8px) 0,100% 8px,100% 100%,8px 100%,0 calc(100% - 8px))}
.btn-primary:hover{background:var(--star-purple-dark);color:var(--white);transform:translateY(-2px);filter:brightness(1.08)}
.btn-primary:active{transform:translateY(0)}
.btn-ghost{background:transparent;border-color:var(--line-strong);color:var(--star-purple-light)}
.btn-ghost:hover{background:rgba(109,77,246,.14);color:var(--text);border-color:var(--star-purple-light)}
.btn-sm{min-height:40px;padding:0 16px;font-size:14px}
.btn[disabled],.btn.is-disabled{opacity:.45;cursor:not-allowed;transform:none}
.text-link{display:inline-flex;align-items:center;gap:6px;color:var(--electric);font-weight:600;font-size:14px}
.text-link:hover{color:var(--star-purple-light);text-decoration:underline;text-underline-offset:3px}
.text-link svg{transition:transform .18s ease}
.text-link:hover svg{transform:translateX(3px)}

/* hero */
.page-hero{position:relative;overflow:hidden;border-bottom:1px solid var(--line);padding:64px 0 56px}
.hero-bg{position:absolute;inset:0;z-index:0}
.hero-bg img{width:100%;height:100%;object-fit:cover;opacity:.38}
.hero-bg::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(10,9,23,.78),rgba(10,9,23,.92) 58%,var(--bg))}
.hero-arcs{position:absolute;right:-160px;top:-120px;width:640px;height:640px;opacity:.28;z-index:0;pointer-events:none}
.hero-inner{position:relative;z-index:1;max-width:880px}
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:10px;font-size:13px;color:var(--text-3);margin-bottom:22px}
.breadcrumb a{color:var(--text-2)}
.breadcrumb a:hover{color:var(--electric)}
.breadcrumb .sep{color:rgba(124,115,255,.5)}
.breadcrumb .current{color:var(--text-3)}
.page-hero h1{font-size:40px;margin-bottom:16px}
.hero-lead{color:var(--text-2);font-size:17px;max-width:680px}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:28px}
.stat-badges{display:flex;flex-wrap:wrap;gap:12px;margin-top:32px}
.stat-badges li{display:flex;align-items:baseline;gap:8px;padding:9px 15px;border:1px solid var(--line);border-radius:var(--radius);background:rgba(20,19,42,.72)}
.stat-num{font-family:var(--font-mono);font-size:18px;font-weight:600;color:var(--electric)}
.stat-label{font-size:13px;color:var(--text-2)}

/* index */
.index-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
.index-item{
  position:relative;display:flex;gap:16px;padding:22px;overflow:hidden;
  background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);
  transition:transform .2s ease,background .2s ease,border-color .2s ease;
}
.index-item::before{content:"";position:absolute;left:0;top:0;bottom:0;width:3px;background:linear-gradient(180deg,var(--star-purple),var(--electric));transform:translateX(-100%);transition:transform .2s ease}
.index-item:hover{background:var(--panel-2);border-color:var(--line-strong);transform:translateY(-2px);text-decoration:none}
.index-item:hover::before{transform:translateX(0)}
.index-num{font-family:var(--font-mono);font-size:14px;font-weight:600;color:var(--star-purple-light);padding-top:3px}
.index-body h3{font-size:17px;margin-bottom:6px;color:var(--text)}
.index-body p{font-size:14px;color:var(--text-2);line-height:1.7}
.index-arrow{margin-left:auto;align-self:center;color:var(--text-3);transition:transform .2s ease,color .2s ease}
.index-item:hover .index-arrow{transform:translateX(4px);color:var(--electric)}

/* entry cards */
.entry-grid{margin:0 -12px}
.entry-grid > .cell{padding:0 12px;margin-bottom:24px}
.entry-card{
  position:relative;display:flex;flex-direction:column;height:100%;overflow:hidden;
  background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);
  transition:transform .2s ease,border-color .2s ease,box-shadow .2s ease;
}
.entry-card::after{content:"";position:absolute;top:0;right:0;width:8px;height:8px;background:var(--bg);clip-path:polygon(100% 0,100% 100%,0 0)}
.entry-card:hover{transform:translateY(-3px);border-color:var(--line-strong);box-shadow:var(--shadow-card)}
.entry-thumb{position:relative;aspect-ratio:16/9;overflow:hidden;background:radial-gradient(circle at 30% 30%,rgba(109,77,246,.35),rgba(20,19,42,1) 70%)}
.entry-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .2s ease}
.entry-card:hover .entry-thumb img{transform:scale(1.03)}
.entry-body{display:flex;flex-direction:column;gap:10px;padding:20px 22px 22px;flex:1}
.entry-body h3{font-size:19px}
.entry-body p{font-size:14px;color:var(--text-2);line-height:1.75}
.entry-meta{display:flex;flex-wrap:wrap;align-items:center;gap:10px;margin-top:auto;padding-top:14px;border-top:1px solid var(--line);font-size:13px;color:var(--text-3)}
.badge{display:inline-flex;align-items:center;gap:6px;font-size:12px;font-family:var(--font-mono);padding:4px 9px;border-radius:var(--radius);border:1px solid transparent;letter-spacing:.02em}
.badge-purple{color:var(--star-purple-light);border-color:rgba(163,140,255,.42);background:rgba(109,77,246,.14)}
.badge-cyan{color:var(--electric);border-color:rgba(34,224,200,.35);background:rgba(34,224,200,.12)}
.badge-orange{color:var(--spark);border-color:rgba(255,138,61,.35);background:rgba(255,138,61,.12)}

/* flow */
.flow-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
.flow-step{position:relative;padding:26px 22px 24px;background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);transition:border-color .2s ease,transform .2s ease}
.flow-step:hover{border-color:var(--line-strong);transform:translateY(-2px)}
.flow-step .step-num{display:block;font-family:var(--font-mono);font-size:22px;font-weight:600;color:var(--star-purple-light);margin-bottom:12px}
.flow-step h3{font-size:17px;margin-bottom:8px}
.flow-step p{font-size:14px;color:var(--text-2);line-height:1.75}

/* table */
.table-wrap{overflow-x:auto;border:1px solid var(--line);border-radius:var(--radius);background:var(--panel)}
.data-table{min-width:640px;font-size:15px}
.data-table th,.data-table td{padding:15px 18px;text-align:left;border-bottom:1px solid var(--line)}
.data-table thead th{font-size:13px;color:var(--text-3);font-weight:600;background:rgba(28,26,56,.75);white-space:nowrap}
.data-table tbody tr:last-child td{border-bottom:0}
.data-table tbody tr:hover{background:rgba(109,77,246,.08)}
.data-table td:first-child{color:var(--text);font-weight:600}
.data-table .mono{font-family:var(--font-mono);font-size:13px;color:var(--electric)}
.data-table td.dim{color:var(--text-3)}

/* faq */
.faq-list{display:grid;gap:12px;max-width:900px}
.faq-item{background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;transition:border-color .2s ease,box-shadow .2s ease}
.faq-item.is-open{border-color:var(--line-strong);box-shadow:inset 2px 0 0 var(--electric)}
.faq-question{display:flex;align-items:center;justify-content:space-between;gap:16px;width:100%;min-height:56px;padding:16px 22px;text-align:left;font-size:16px;font-weight:700;color:var(--text);transition:background .18s ease}
.faq-question:hover{background:rgba(109,77,246,.08)}
.faq-icon{flex:0 0 auto;color:var(--text-3);transition:transform .22s ease,color .22s ease}
.faq-item.is-open .faq-icon{transform:rotate(90deg);color:var(--electric)}
.faq-answer{max-height:0;overflow:hidden;transition:max-height .22s ease}
.faq-item.is-open .faq-answer{max-height:360px}
.faq-answer p{padding:0 22px 20px;font-size:15px;color:var(--text-2);line-height:1.85}

/* cta */
.cta-band{position:relative;display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:24px;padding:32px 34px;background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);overflow:hidden}
.cta-band::before{content:"";position:absolute;left:0;top:0;bottom:0;width:4px;background:linear-gradient(180deg,var(--star-purple),var(--electric))}
.cta-band h2{font-size:24px;margin-bottom:8px}
.cta-band p{font-size:14px;color:var(--text-2)}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px}

/* footer */
.site-footer{margin-top:96px;border-top:1px solid var(--line);background:#0C0B1B;padding:64px 0 0}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.4fr;gap:40px}
.footer-brand .logo{margin-bottom:16px}
.footer-desc{font-size:14px;color:var(--text-2);line-height:1.8;max-width:320px}
.footer-title{font-size:14px;font-weight:700;color:var(--text);margin-bottom:16px}
.footer-links{display:flex;flex-direction:column;gap:10px}
.footer-links a{font-size:14px;color:var(--text-2)}
.footer-links a:hover{color:var(--electric)}
.footer-note{font-size:13px;color:var(--text-3);line-height:1.9}
.footer-bottom{display:flex;flex-wrap:wrap;gap:12px;align-items:center;justify-content:space-between;margin-top:48px;padding:20px 0;border-top:1px solid var(--line);font-size:13px;color:var(--text-3)}

/* responsive */
@media screen and (max-width:1279px){
  .index-grid{grid-template-columns:repeat(2,1fr)}
}
@media screen and (max-width:1023px){
  .container{padding:0 24px}
  .section{padding:72px 0}
  .section-tight{padding:56px 0}
  .page-hero{padding:48px 0 44px}
  .page-hero h1{font-size:32px}
  .hero-arcs{width:460px;height:460px;right:-160px;top:-120px}
  .nav-links{display:none}
  .nav-toggle{display:block}
  .flow-grid{grid-template-columns:repeat(2,1fr)}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
}
@media screen and (max-width:767px){
  .index-grid{grid-template-columns:1fr}
  .entry-grid > .cell{padding:0 12px}
}
@media screen and (max-width:639px){
  .container{padding:0 16px}
  .section{padding:48px 0}
  .section-tight{padding:44px 0}
  .logo-text{font-size:16px}
  .page-hero{padding:36px 0 36px}
  .page-hero h1{font-size:26px}
  .hero-lead{font-size:15px}
  .section-title{font-size:21px}
  .index-grid{gap:12px}
  .index-item{padding:18px}
  .flow-grid{grid-template-columns:1fr}
  .stat-badges li{flex:1 1 calc(50% - 6px);justify-content:flex-start}
  .hero-actions .btn{width:100%}
  .cta-band{padding:26px 20px}
  .cta-actions{width:100%}
  .cta-actions .btn{width:100%}
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .footer-bottom{flex-direction:column;align-items:flex-start}
  .faq-question{font-size:15px;padding:15px 18px}
  .faq-answer p{padding:0 18px 18px}
}

/* roulang page: category2 */
:root{
  --c-primary:#6D4DF6;
  --c-primary-deep:#4B32C4;
  --c-primary-soft:#A38CFF;
  --c-cyan:#22E0C8;
  --c-orange:#FF8A3D;
  --c-bg:#0A0917;
  --c-panel:#14132A;
  --c-panel-2:#1C1A38;
  --line:rgba(124,115,255,.18);
  --line-strong:rgba(163,140,255,.45);
  --t1:#F4F5FF;
  --t2:#A9A8C6;
  --t3:#6F6E92;
  --r:4px;
  --shadow:0 2px 0 rgba(0,0,0,.35),0 12px 32px rgba(10,9,23,.6);
  --mono:'JetBrains Mono','Roboto Mono',ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;
  --sans:'HarmonyOS Sans SC','PingFang SC','Source Han Sans SC','Noto Sans SC','Microsoft YaHei',sans-serif;
}

*{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body{
  margin:0;
  background-color:var(--c-bg);
  background-image:radial-gradient(rgba(163,140,255,.07) 1px,transparent 1px);
  background-size:34px 34px;
  color:var(--t1);
  font-family:var(--sans);
  font-size:16px;
  line-height:1.85;
  letter-spacing:.01em;
  overflow-x:hidden;
}
img{max-width:100%;display:block;}
a{color:var(--c-cyan);text-decoration:none;transition:color .16s ease;}
a:hover{color:var(--c-primary-soft);text-decoration:underline;text-underline-offset:3px;}
h1,h2,h3,h4,p,ul,ol,figure{margin:0;}
ul,ol{padding:0;list-style:none;}
button{font-family:inherit;}
:focus-visible{outline:2px solid var(--c-cyan);outline-offset:2px;}

.container{width:100%;max-width:1240px;margin:0 auto;padding:0 32px;}
.section{padding:72px 0;}
.section-tight{padding:48px 0;}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:44px;padding:0 22px;font-size:15px;font-weight:600;letter-spacing:.02em;
  border-radius:var(--r);border:1px solid transparent;cursor:pointer;text-align:center;
  transition:background .18s ease,color .18s ease,transform .18s ease,border-color .18s ease,box-shadow .18s ease;
}
.btn-primary{
  background:var(--c-primary);color:#fff;
  clip-path:polygon(0 0,calc(100% - 10px) 0,100% 10px,100% 100%,0 100%);
}
.btn-primary:hover{background:var(--c-primary-deep);color:#fff;text-decoration:none;transform:translate(2px,-2px);}
.btn-ghost{background:transparent;border-color:var(--line-strong);color:var(--c-primary-soft);}
.btn-ghost:hover{background:rgba(109,77,246,.14);color:var(--t1);text-decoration:none;}
.btn-text{background:none;border:0;color:var(--c-cyan);padding:0 4px;min-height:44px;}
.btn-text:hover{color:var(--c-primary-soft);text-decoration:underline;text-underline-offset:3px;}
.btn-sm{min-height:38px;padding:0 16px;font-size:14px;}
.btn:disabled,.btn.is-disabled{opacity:.45;cursor:not-allowed;transform:none;}
.btn:focus-visible{outline:2px solid var(--c-cyan);outline-offset:2px;}

/* ---------- 徽章 / 标签 ---------- */
.badge{
  display:inline-flex;align-items:center;gap:6px;
  font-family:var(--mono);font-size:12px;font-weight:600;letter-spacing:.04em;
  padding:4px 10px;border-radius:3px;border:1px solid var(--line-strong);
  background:rgba(109,77,246,.12);color:var(--c-primary-soft);
}
.badge-cyan{border-color:rgba(34,224,200,.42);background:rgba(34,224,200,.12);color:var(--c-cyan);}
.badge-orange{border-color:rgba(255,138,61,.4);background:rgba(255,138,61,.12);color:var(--c-orange);}

/* ---------- 导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:transparent;border-bottom:1px solid transparent;
  transition:background .22s ease,border-color .22s ease;
}
.site-header.is-scrolled{background:rgba(10,9,23,.92);border-bottom-color:var(--line);}
.nav-inner{display:flex;align-items:center;justify-content:space-between;gap:24px;min-height:74px;}
.logo{display:inline-flex;align-items:center;gap:10px;color:var(--t1);text-decoration:none;}
.logo:hover{text-decoration:none;color:var(--t1);}
.logo-mark{width:30px;height:30px;flex:none;}
.logo-text{font-size:17px;font-weight:800;letter-spacing:-.01em;white-space:nowrap;}
.nav-links{display:flex;align-items:center;gap:6px;}
.nav-link{
  position:relative;display:inline-flex;align-items:center;min-height:44px;
  padding:0 14px;font-size:15px;color:var(--t2);border-radius:3px;
  transition:color .16s ease,background .16s ease;
}
.nav-link:hover{color:var(--t1);text-decoration:none;background:rgba(109,77,246,.07);}
.nav-link::after{
  content:"";position:absolute;left:12px;right:12px;bottom:6px;height:2px;
  background:linear-gradient(90deg,var(--c-primary),var(--c-cyan));
  transform:scaleX(0);transform-origin:left center;transition:transform .18s ease;
}
.nav-link:hover::after{transform:scaleX(1);}
.nav-link.is-active{color:var(--t1);background:rgba(109,77,246,.10);font-weight:600;}
.nav-link.is-active::after{transform:scaleX(1);}
.nav-cta{margin-left:10px;}
.nav-toggle{
  display:none;width:46px;height:46px;border:1px solid var(--line);border-radius:var(--r);
  background:var(--c-panel);cursor:pointer;position:relative;
}
.nav-toggle span,.nav-toggle span::before,.nav-toggle span::after{
  position:absolute;left:50%;width:20px;height:2px;background:var(--t1);border-radius:2px;
  transform:translateX(-50%);transition:transform .2s ease,opacity .2s ease;
}
.nav-toggle span{top:50%;margin-top:-1px;}
.nav-toggle span::before{content:"";left:0;top:-6px;transform:none;}
.nav-toggle span::after{content:"";left:0;top:6px;transform:none;}

/* 移动抽屉 */
.drawer-mask{
  position:fixed;inset:0;background:rgba(10,9,23,.72);z-index:80;
  opacity:0;visibility:hidden;transition:opacity .2s ease,visibility .2s ease;
}
.drawer-mask.is-open{opacity:1;visibility:visible;}
.drawer{
  position:fixed;top:0;right:0;bottom:0;width:min(320px,86vw);z-index:90;
  background:var(--c-panel);
  background-image:radial-gradient(rgba(163,140,255,.09) 1px,transparent 1px);
  background-size:26px 26px;
  border-left:1px solid var(--line);
  transform:translateX(102%);transition:transform .24s ease;
  padding:24px 20px;display:flex;flex-direction:column;gap:4px;overflow-y:auto;
}
.drawer.is-open{transform:none;}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:14px;}
.drawer-close{
  width:40px;height:40px;border:1px solid var(--line);border-radius:var(--r);
  background:transparent;color:var(--t2);font-size:20px;line-height:1;cursor:pointer;
}
.drawer-link{
  display:flex;align-items:center;min-height:52px;padding:0 14px;color:var(--t2);
  font-size:15px;border-left:3px solid transparent;border-radius:3px;
}
.drawer-link:hover{color:var(--t1);background:rgba(109,77,246,.10);text-decoration:none;}
.drawer-link.is-active{color:var(--t1);border-left-color:var(--c-cyan);background:rgba(109,77,246,.12);font-weight:600;}
.drawer .btn{margin-top:16px;}

/* ---------- 页头 ---------- */
.page-hero{position:relative;overflow:hidden;padding:112px 0 64px;}
.page-hero-bg{
  position:absolute;inset:0;
  background-image:url('/assets/images/backpic/back-2.png');
  background-size:cover;background-position:center;
  opacity:.32;filter:saturate(.9);
}
.page-hero::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(10,9,23,.72) 0%,rgba(10,9,23,.92) 68%,var(--c-bg) 100%);
}
.page-hero .container{position:relative;z-index:2;}
.hero-deco{position:absolute;right:-60px;top:40px;width:520px;height:520px;opacity:.25;z-index:1;}
.breadcrumbs{display:flex;flex-wrap:wrap;align-items:center;gap:10px;font-size:14px;color:var(--t3);margin-bottom:20px;}
.breadcrumbs a{color:var(--t2);}
.breadcrumbs a:hover{color:var(--c-cyan);text-decoration:none;}
.breadcrumbs .sep{color:var(--t3);opacity:.7;}
.breadcrumbs .current{color:var(--t3);}
.page-title{font-size:40px;line-height:1.3;font-weight:800;letter-spacing:-.01em;margin:14px 0 16px;max-width:18em;}
.page-lead{font-size:17px;color:var(--t2);max-width:56ch;margin-bottom:28px;}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;align-items:center;}
.hero-meta{display:flex;flex-wrap:wrap;gap:12px;margin-top:26px;}

/* ---------- 板块标题 ---------- */
.section-head{margin-bottom:36px;max-width:66ch;}
.section-title{position:relative;font-size:28px;font-weight:800;line-height:1.4;letter-spacing:-.01em;padding-left:16px;}
.section-title::before{
  content:"";position:absolute;left:0;top:6px;bottom:6px;width:3px;border-radius:2px;
  background:linear-gradient(180deg,var(--c-primary),var(--c-cyan));
}
.section-sub{margin-top:12px;color:var(--t2);font-size:15px;}

/* ---------- 档案式布局 ---------- */
.archive{display:grid;grid-template-columns:230px minmax(0,1fr);gap:56px;align-items:start;}
.axis{position:sticky;top:104px;}
.axis-title{font-family:var(--mono);font-size:12px;letter-spacing:.12em;color:var(--t3);text-transform:uppercase;margin-bottom:14px;}
.axis-item{
  display:flex;align-items:center;gap:10px;min-height:46px;padding:0 14px;font-size:14px;color:var(--t2);
  border-left:2px solid var(--line);transition:color .18s ease,border-color .18s ease,background .18s ease;
}
.axis-item:hover{color:var(--t1);border-left-color:var(--c-primary-soft);background:rgba(109,77,246,.08);text-decoration:none;}
.axis-item.is-active{color:var(--t1);border-left-color:var(--c-cyan);background:rgba(34,224,200,.07);font-weight:600;}
.axis-num{font-family:var(--mono);font-size:12px;color:var(--t3);}
.axis-item.is-active .axis-num{color:var(--c-cyan);}

.group{margin-bottom:52px;scroll-margin-top:110px;}
.group-head{
  display:flex;align-items:baseline;gap:14px;flex-wrap:wrap;
  padding-bottom:14px;border-bottom:1px solid var(--line);margin-bottom:20px;
}
.group-num{font-family:var(--mono);font-size:22px;font-weight:600;color:rgba(163,140,255,.5);}
.group-title{font-size:22px;font-weight:700;letter-spacing:-.01em;}
.group-sub{margin-left:auto;font-size:13px;color:var(--t3);}
.row-list{display:flex;flex-direction:column;gap:12px;}
.card-row{
  display:flex;align-items:center;gap:20px;
  padding:18px 22px;background:var(--c-panel);
  border:1px solid var(--line);border-radius:var(--r);
  clip-path:polygon(0 12px,12px 0,100% 0,100% 100%,0 100%);
  transition:border-color .2s ease,transform .2s ease,background .2s ease,box-shadow .2s ease;
}
.card-row:hover{border-color:var(--line-strong);background:#191735;transform:translateY(-2px);box-shadow:var(--shadow);}
.row-index{font-family:var(--mono);font-size:13px;font-weight:600;color:var(--c-primary-soft);min-width:54px;flex:none;}
.row-main{flex:1;min-width:0;}
.row-title{font-size:17px;font-weight:700;color:var(--t1);line-height:1.5;}
.row-desc{font-size:14px;color:var(--t2);line-height:1.65;margin-top:2px;}
.row-arrow{flex:none;color:var(--t3);font-size:18px;transition:transform .2s ease,color .2s ease;}
.card-row:hover .row-arrow{color:var(--c-cyan);transform:translateX(4px);}

/* ---------- 图文区块 ---------- */
.feature{
  display:grid;grid-template-columns:1.05fr 1fr;
  background:var(--c-panel);border:1px solid var(--line);border-radius:var(--r);overflow:hidden;
  clip-path:polygon(0 0,calc(100% - 16px) 0,100% 16px,100% 100%,0 100%);
}
.feature-media{position:relative;min-height:360px;background:linear-gradient(135deg,#1C1A38,#0A0917);}
.feature-media img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;}
.feature-body{padding:34px 32px;display:flex;flex-direction:column;justify-content:center;gap:16px;}
.feature-body h3{font-size:22px;font-weight:700;line-height:1.45;}
.feature-body p{font-size:15px;color:var(--t2);}
.feature-list{display:flex;flex-direction:column;gap:10px;margin-top:4px;}
.feature-list li{position:relative;padding-left:20px;font-size:15px;color:var(--t2);}
.feature-list li::before{
  content:"";position:absolute;left:0;top:11px;width:7px;height:7px;
  background:var(--c-cyan);border-radius:1px;transform:rotate(45deg);opacity:.85;
}

/* ---------- 核对清单 ---------- */
.check-wrap{border:1px solid var(--line);border-radius:var(--r);overflow:hidden;background:var(--c-panel);}
.check-table{width:100%;border-collapse:collapse;}
.check-table th,.check-table td{
  text-align:left;padding:16px 22px;font-size:15px;
  border-bottom:1px solid var(--line);
}
.check-table thead th{
  font-size:13px;letter-spacing:.06em;color:var(--t3);font-weight:600;
  background:rgba(109,77,246,.07);font-family:var(--mono);
}
.check-table tbody tr{transition:background .18s ease;}
.check-table tbody tr:hover{background:rgba(109,77,246,.07);}
.check-table tbody tr:last-child td{border-bottom:0;}
.check-table td:first-child{color:var(--t1);font-weight:600;}
.check-table td{color:var(--t2);}
.check-table td:last-child{font-family:var(--mono);font-size:13px;color:var(--c-primary-soft);white-space:nowrap;}

/* ---------- 相关推荐 ---------- */
.rec-grid{display:flex;gap:18px;overflow-x:auto;padding-bottom:10px;}
.rec-card{
  flex:1 1 0;min-width:264px;background:var(--c-panel);border:1px solid var(--line);border-radius:var(--r);
  overflow:hidden;transition:border-color .2s ease,transform .2s ease;
  display:flex;flex-direction:column;
}
.rec-card:hover{border-color:var(--line-strong);transform:translateY(-2px);text-decoration:none;}
.rec-media{aspect-ratio:16/9;overflow:hidden;background:linear-gradient(135deg,#1C1A38,#0A0917);}
.rec-media img{width:100%;height:100%;object-fit:cover;transition:transform .2s ease;}
.rec-card:hover .rec-media img{transform:scale(1.03);}
.rec-body{padding:18px 20px 22px;display:flex;flex-direction:column;gap:8px;}
.rec-body h3{font-size:16px;font-weight:700;color:var(--t1);line-height:1.55;}
.rec-body p{font-size:14px;color:var(--t2);line-height:1.65;}
.rec-time{font-family:var(--mono);font-size:12px;color:var(--t3);}

/* ---------- FAQ ---------- */
.faq-list{display:flex;flex-direction:column;gap:12px;max-width:900px;}
.faq-item{
  background:var(--c-panel);border:1px solid var(--line);border-radius:var(--r);
  overflow:hidden;transition:border-color .2s ease,box-shadow .2s ease;
}
.faq-item.is-open{border-color:var(--line-strong);box-shadow:inset 2px 0 0 var(--c-cyan);}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:18px;
  padding:18px 22px;background:none;border:0;color:var(--t1);
  font-size:16px;font-weight:600;text-align:left;cursor:pointer;min-height:56px;line-height:1.6;
}
.faq-q:hover{color:var(--c-primary-soft);}
.faq-arrow{flex:none;font-size:18px;color:var(--t3);transition:transform .22s ease,color .22s ease;}
.faq-item.is-open .faq-arrow{transform:rotate(90deg);color:var(--c-cyan);}
.faq-a{max-height:0;overflow:hidden;transition:max-height .22s ease;}
.faq-a-inner{padding:0 22px 20px;font-size:15px;color:var(--t2);line-height:1.85;}

/* ---------- CTA 条带 ---------- */
.cta-band{
  position:relative;overflow:hidden;
  background:var(--c-panel);border:1px solid var(--line);border-radius:var(--r);
  padding:34px 34px 34px 38px;
  display:flex;align-items:center;justify-content:space-between;gap:28px;flex-wrap:wrap;
}
.cta-band::before{
  content:"";position:absolute;left:0;top:0;bottom:0;width:4px;
  background:linear-gradient(180deg,var(--c-primary),var(--c-cyan));
}
.cta-copy{max-width:56ch;}
.cta-copy h2{font-size:24px;font-weight:800;letter-spacing:-.01em;margin-bottom:8px;}
.cta-copy p{font-size:15px;color:var(--t2);}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;align-items:center;}
.copy-feedback{font-size:13px;color:var(--c-cyan);min-height:20px;width:100%;}

/* ---------- 页脚 ---------- */
.site-footer{margin-top:72px;border-top:1px solid var(--line);background:rgba(20,19,42,.6);padding:60px 0 28px;}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:40px;}
.footer-brand .logo{margin-bottom:14px;}
.footer-desc{font-size:14px;color:var(--t2);max-width:34ch;line-height:1.8;}
.footer-title{font-size:14px;font-weight:700;color:var(--t1);margin-bottom:16px;letter-spacing:.02em;}
.footer-links{display:flex;flex-direction:column;gap:10px;}
.footer-links a{font-size:14px;color:var(--t2);}
.footer-links a:hover{color:var(--c-cyan);text-decoration:none;}
.footer-note{font-size:14px;color:var(--t3);line-height:1.8;}
.footer-bottom{
  margin-top:44px;padding-top:20px;border-top:1px solid var(--line);
  display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13px;color:var(--t3);
}

/* ---------- 响应式 ---------- */
@media (max-width:1023px){
  .container{padding:0 24px;}
  .section{padding:56px 0;}
  .nav-links{display:none;}
  .nav-toggle{display:inline-block;}
  .page-title{font-size:32px;}
  .page-hero{padding:104px 0 52px;}
  .archive{grid-template-columns:1fr;gap:32px;}
  .axis{position:static;display:flex;flex-wrap:wrap;gap:8px;}
  .axis-title{width:100%;margin-bottom:6px;}
  .axis-item{border-left:0;border:1px solid var(--line);border-radius:var(--r);padding:0 14px;min-height:44px;}
  .axis-item.is-active{border-color:rgba(34,224,200,.45);}
  .feature{grid-template-columns:1fr;}
  .feature-media{min-height:260px;}
  .section-title{font-size:24px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
}
@media (max-width:639px){
  .container{padding:0 16px;}
  .section{padding:48px 0;}
  .page-hero{padding:96px 0 44px;}
  .page-title{font-size:26px;}
  .page-lead{font-size:15px;}
  .hero-actions .btn{width:100%;}
  .section-title{font-size:21px;}
  .card-row{flex-wrap:wrap;gap:10px;padding:16px 18px;}
  .row-index{min-width:auto;}
  .row-arrow{display:none;}
  .group-sub{margin-left:0;width:100%;}
  .cta-band{padding:26px 22px 26px 26px;}
  .cta-actions{width:100%;}
  .cta-actions .btn{width:100%;}
  .footer-grid{grid-template-columns:1fr;}
  .footer-bottom{flex-direction:column;gap:8px;}
  .check-table th,.check-table td{padding:14px 16px;font-size:14px;}
  .rec-card{min-width:236px;}
}