/* roulang page: index */
/* ================= 1. 设计变量 ================= */
:root{
  --bg:#060A14;
  --panel:#0E1526;
  --panel-2:#111A2E;
  --glass:rgba(18,26,44,.62);
  --primary:#1B54FF;
  --primary-deep:#0B2A80;
  --mint:#3DF0A8;
  --orange:#FF7A29;
  --text:#E8EEF9;
  --text-2:#9AA9C4;
  --text-3:#64748B;
  --line:rgba(120,160,255,.14);
  --line-strong:rgba(120,160,255,.26);
  --r-xl:22px;
  --r-lg:16px;
  --r-md:12px;
  --r-pill:999px;
  --sh-card:0 1px 0 rgba(255,255,255,.04) inset,0 10px 30px rgba(0,0,0,.45);
  --sh-glow:0 0 0 1px rgba(61,240,168,.35),0 8px 28px rgba(27,84,255,.45);
  --ease:200ms ease-out;
  --sec:88px;
  --container:1200px;
}

/* ================= 2. 基础重置 ================= */
*,*::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:"PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
  font-size:16px;line-height:1.8;letter-spacing:.01em;
  -webkit-font-smoothing:antialiased;overflow-x:hidden;
}
body::before{
  content:"";position:fixed;inset:0;z-index:0;pointer-events:none;
  background-image:linear-gradient(rgba(120,160,255,.05) 1px,transparent 1px),
                   linear-gradient(90deg,rgba(120,160,255,.05) 1px,transparent 1px);
  background-size:60px 60px;
}
a{color:inherit;text-decoration:none;transition:color var(--ease)}
a:hover{color:var(--mint)}
img{max-width:100%;display:block;height:auto}
button{font-family:inherit}
ul,ol{margin:0}
::selection{background:rgba(27,84,255,.45);color:#fff}
:focus-visible{outline:2px solid var(--mint);outline-offset:2px;border-radius:4px}
h1,h2,h3,h4{margin:0;font-weight:700;line-height:1.32;color:var(--text);letter-spacing:-.01em}
p{margin:0}
.site-header,.site-main,.site-footer{position:relative;z-index:1}

/* ================= 3. 容器与板块 ================= */
.container{width:100%;max-width:var(--container);margin:0 auto;padding-left:24px;padding-right:24px}
.section{padding:var(--sec) 0;position:relative}
.section-alt{background:linear-gradient(180deg,rgba(14,21,38,.55),rgba(6,10,20,0))}
.section-head{
  display:flex;align-items:flex-end;justify-content:space-between;
  gap:24px;flex-wrap:wrap;margin-bottom:28px;
}
.section-title{font-size:clamp(24px,2.6vw,34px)}
.section-desc{color:var(--text-2);font-size:15px;margin-top:10px;max-width:660px;line-height:1.8}
.section-link{display:inline-flex;align-items:center;gap:8px;font-size:14px;color:var(--text-2);transition:all var(--ease)}
.section-link i{transition:transform var(--ease)}
.section-link:hover{color:var(--mint)}
.section-link:hover i{transform:translateX(4px)}
.divider{height:1px;background:var(--line);border:0;margin:0}

/* ================= 4. 按钮 / 徽章 ================= */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:46px;padding:0 26px;border-radius:var(--r-pill);
  font-size:15px;font-weight:600;border:1px solid transparent;
  cursor:pointer;transition:all var(--ease);white-space:nowrap;line-height:1;
}
.btn-lg{height:54px;padding:0 32px;font-size:16px}
.btn-primary{background:linear-gradient(180deg,#2A63FF,#1B54FF);color:#fff;box-shadow:var(--sh-glow)}
.btn-primary:hover{color:#fff;transform:translateY(-2px);box-shadow:0 0 0 1px rgba(61,240,168,.5),0 14px 34px rgba(27,84,255,.6)}
.btn-primary:active{transform:translateY(0)}
.btn-outline{background:transparent;border-color:rgba(120,160,255,.35);color:var(--text)}
.btn-outline:hover{border-color:var(--mint);color:var(--mint);background:rgba(61,240,168,.06)}
.btn-ghost{background:transparent;color:var(--text-2);padding:0 6px;height:auto}
.btn-ghost:hover{color:var(--mint)}
.btn-ghost i{transition:transform var(--ease)}
.btn-ghost:hover i{transform:translateX(4px)}
.badge-tag{
  display:inline-flex;align-items:center;gap:6px;height:26px;padding:0 12px;
  border-radius:var(--r-pill);font-size:12px;line-height:1;color:var(--mint);
  background:var(--glass);border:1px solid rgba(61,240,168,.24);
  -webkit-backdrop-filter:blur(6px);backdrop-filter:blur(6px);white-space:nowrap;
}
.badge-plain{
  display:inline-flex;align-items:center;height:24px;padding:0 10px;
  border-radius:var(--r-pill);font-size:12px;color:var(--text-2);
  background:rgba(18,26,44,.7);border:1px solid var(--line);
}
.num{font-variant-numeric:tabular-nums}

/* ================= 5. 顶部信息条 ================= */
.topbar{height:34px;display:flex;align-items:center;font-size:13px;color:var(--text-3);border-bottom:1px solid var(--line)}
.topbar .container{display:flex;align-items:center;justify-content:space-between;gap:16px}
.topbar-left{display:flex;align-items:center;gap:10px;overflow:hidden;white-space:nowrap}
.topbar-left i{color:var(--mint);font-size:11px}
.topbar-right{display:flex;align-items:center;gap:18px;white-space:nowrap}
.topbar-right span{display:inline-flex;align-items:center;gap:6px}

/* ================= 6. 主导航 ================= */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(6,10,20,.88);
  -webkit-backdrop-filter:blur(16px);backdrop-filter:blur(16px);
  border-bottom:1px solid var(--line);
}
.nav-inner{display:flex;align-items:center;gap:28px;height:72px}
.brand{display:flex;align-items:center;gap:10px;flex-shrink:0}
.brand-mark{
  width:34px;height:34px;border-radius:10px;display:grid;place-items:center;
  background:linear-gradient(140deg,#1B54FF,#0B2A80);
  box-shadow:0 6px 18px rgba(27,84,255,.45);color:#fff;font-size:14px;flex-shrink:0;
}
.brand-text{font-size:17px;font-weight:700;letter-spacing:.01em;color:var(--text);white-space:nowrap}
.brand-text em{font-style:normal;color:var(--mint)}
.nav-menu{display:flex;align-items:center;flex:1;min-width:0}
.nav-list{display:flex;align-items:center;gap:2px;list-style:none;padding:0;margin:0}
.nav-link{
  position:relative;display:inline-flex;align-items:center;height:72px;
  padding:0 13px;font-size:15px;font-weight:500;color:var(--text-2);white-space:nowrap;
}
.nav-link::after{
  content:"";position:absolute;left:13px;right:13px;bottom:20px;height:2px;border-radius:2px;
  background:var(--mint);transform:scaleX(0);transform-origin:left center;transition:transform var(--ease);
}
.nav-link:hover{color:var(--text)}
.nav-link:hover::after{transform:scaleX(1)}
.nav-link.active{color:var(--text);font-weight:600}
.nav-link.active::after{transform:scaleX(1)}
.nav-right{display:flex;align-items:center;gap:14px;margin-left:auto;flex-shrink:0}
.nav-toggle{
  display:none;width:42px;height:42px;border-radius:12px;
  background:rgba(18,26,44,.7);border:1px solid var(--line-strong);
  color:var(--text);font-size:16px;cursor:pointer;transition:all var(--ease);
}
.nav-toggle:hover{border-color:var(--mint);color:var(--mint)}

/* Mega 面板 */
.mega-wrap{position:relative}
.mega-trigger{
  display:inline-flex;align-items:center;gap:8px;height:40px;padding:0 18px;
  border-radius:var(--r-pill);background:var(--glass);border:1px solid var(--line-strong);
  color:var(--text-2);font-size:14px;cursor:pointer;transition:all var(--ease);
}
.mega-trigger:hover{color:var(--text);border-color:rgba(61,240,168,.42)}
.mega-trigger i{font-size:11px;transition:transform var(--ease)}
.mega-wrap.open .mega-trigger i{transform:rotate(180deg)}
.mega-panel{
  position:absolute;right:0;top:calc(100% + 14px);width:740px;max-width:calc(100vw - 48px);
  background:rgba(14,21,38,.95);
  -webkit-backdrop-filter:blur(18px);backdrop-filter:blur(18px);
  border:1px solid var(--line-strong);border-radius:var(--r-xl);padding:26px;
  display:grid;grid-template-columns:1.05fr 1fr 1fr;gap:24px;
  box-shadow:0 30px 70px rgba(0,0,0,.62);
  opacity:0;visibility:hidden;transform:translateY(8px);
  transition:opacity var(--ease),transform var(--ease),visibility var(--ease);z-index:70;
}
.mega-panel::before{
  content:"";position:absolute;top:-1px;left:26px;right:26px;height:1px;
  background:linear-gradient(90deg,transparent,rgba(61,240,168,.85),transparent);
}
.mega-col-title{font-size:12px;color:var(--text-3);letter-spacing:.14em;margin-bottom:14px;font-weight:600}
.mega-links{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:2px}
.mega-links a{
  display:flex;align-items:center;justify-content:space-between;
  padding:9px 10px;border-radius:10px;font-size:14px;color:var(--text-2);transition:all var(--ease);
}
.mega-links a:hover{background:rgba(27,84,255,.14);color:var(--text)}
.mega-links a i{font-size:11px;color:var(--text-3)}
.mega-post{display:block;padding:11px 12px;border-radius:12px;border:1px solid var(--line);margin-bottom:10px;transition:all var(--ease)}
.mega-post:hover{border-color:rgba(61,240,168,.4);background:rgba(61,240,168,.05);color:inherit}
.mega-post strong{display:block;font-size:14px;font-weight:600;color:var(--text);margin-bottom:4px;line-height:1.5}
.mega-post span{font-size:12px;color:var(--text-3)}
.mega-entry{
  display:block;padding:16px;border-radius:14px;
  background:linear-gradient(150deg,rgba(27,84,255,.22),rgba(61,240,168,.08));
  border:1px solid rgba(61,240,168,.24);transition:all var(--ease);
}
.mega-entry:hover{transform:translateY(-2px);border-color:rgba(61,240,168,.5);color:inherit}
.mega-entry i{font-size:18px;color:var(--mint);margin-bottom:10px;display:block}
.mega-entry strong{display:block;font-size:14px;color:var(--text);margin-bottom:4px}
.mega-entry span{font-size:12.5px;color:var(--text-2);line-height:1.65;display:block}
@media (min-width:992px){
  .mega-wrap:hover .mega-panel,.mega-wrap.open .mega-panel{opacity:1;visibility:visible;transform:translateY(0)}
}

/* ================= 7. Hero ================= */
.hero{
  position:relative;overflow:hidden;
  padding:96px 0 76px;
  border-bottom:1px solid var(--line);
}
.hero-bg{
  position:absolute;inset:0;background-size:cover;background-position:center;
  opacity:.42;transform:scale(1.02);
}
.hero::before{
  content:"";position:absolute;inset:0;
  background:linear-gradient(115deg,rgba(6,10,20,.96) 8%,rgba(6,10,20,.72) 46%,rgba(6,10,20,.94) 100%);
}
.hero-arc{
  position:absolute;right:-140px;top:-120px;width:720px;height:720px;
  border-radius:50%;border:1px solid rgba(27,84,255,.35);
  box-shadow:0 0 120px rgba(27,84,255,.22) inset;pointer-events:none;
}
.hero-arc::after{
  content:"";position:absolute;inset:110px;border-radius:50%;
  border:1px dashed rgba(61,240,168,.22);
}
.hero-inner{position:relative;z-index:2;display:grid;gap:48px}
.hero-copy{max-width:820px}
.hero-eyebrow{
  display:inline-flex;align-items:center;gap:8px;height:30px;padding:0 14px;
  border-radius:var(--r-pill);background:var(--glass);border:1px solid rgba(61,240,168,.26);
  color:var(--mint);font-size:12.5px;letter-spacing:.06em;margin-bottom:22px;
}
.hero-title{font-size:clamp(30px,4.2vw,52px);line-height:1.25;font-weight:700}
.hero-title em{font-style:normal;color:var(--mint)}
.hero-sub{color:var(--text-2);font-size:clamp(15px,1.4vw,17px);margin-top:20px;max-width:640px;line-height:1.85}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:34px}
.hero-stats{
  display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:1px;
  background:var(--line);border:1px solid var(--line);border-radius:var(--r-lg);
  overflow:hidden;background-clip:padding-box;
  -webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);
}
.stat{background:rgba(14,21,38,.72);padding:22px 24px}
.stat-num{
  display:block;font-size:clamp(24px,2.6vw,32px);font-weight:700;color:var(--mint);
  font-variant-numeric:tabular-nums;line-height:1.2;
}
.stat-label{display:block;font-size:13px;color:var(--text-2);margin-top:8px}

/* ================= 8. 合集目录 ================= */
.topic-strip{
  display:flex;gap:14px;overflow-x:auto;padding:4px 4px 16px;
  scroll-snap-type:x mandatory;-webkit-overflow-scrolling:touch;
}
.topic-strip::-webkit-scrollbar{height:6px}
.topic-strip::-webkit-scrollbar-thumb{background:rgba(120,160,255,.24);border-radius:6px}
.topic-chip{
  flex:0 0 auto;min-width:168px;scroll-snap-align:start;
  display:flex;align-items:center;gap:12px;padding:14px 18px;
  background:var(--panel);border:1px solid var(--line);border-radius:var(--r-lg);
  transition:all var(--ease);box-shadow:var(--sh-card);
}
.topic-chip:hover{transform:translateY(-4px);border-color:rgba(27,84,255,.62);color:inherit}
.topic-chip i{font-size:17px;color:var(--mint);width:22px;text-align:center;flex-shrink:0}
.topic-chip b{display:block;font-size:14.5px;font-weight:600;color:var(--text);line-height:1.4}
.topic-chip span{display:block;font-size:12px;color:var(--text-3);margin-top:2px}

/* ================= 9. 卡片与精选 ================= */
.card-post,.feature-card{
  position:relative;background:var(--panel);border:1px solid var(--line);
  border-radius:var(--r-xl);overflow:hidden;box-shadow:var(--sh-card);
  transition:transform var(--ease),border-color var(--ease);
  height:100%;display:flex;flex-direction:column;
}
.card-post:hover,.feature-card:hover{transform:translateY(-4px);border-color:rgba(27,84,255,.6)}
.cover{position:relative;aspect-ratio:16/9;overflow:hidden;background:#0B1222;flex-shrink:0}
.cover img{width:100%;height:100%;object-fit:cover;transition:transform 300ms ease-out}
.card-post:hover .cover img,.feature-card:hover .cover img{transform:scale(1.03)}
.cover::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(6,10,20,.12),rgba(6,10,20,.74));
}
.cover .badge-tag{position:absolute;left:14px;top:14px;z-index:2}
.card-body{padding:20px 22px 22px;display:flex;flex-direction:column;flex:1}
.card-title{font-size:18px;line-height:1.55;font-weight:600;color:var(--text)}
.card-title a{display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.card-title a:hover{color:var(--mint)}
.card-excerpt{
  color:var(--text-2);font-size:14px;line-height:1.75;margin-top:10px;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.card-foot{
  display:flex;align-items:center;justify-content:space-between;gap:12px;
  margin-top:auto;padding-top:16px;border-top:1px solid var(--line);margin-top:18px;
}
.card-meta{font-size:12.5px;color:var(--text-3);display:inline-flex;align-items:center;gap:8px}
.card-meta i{font-size:11px}
.card-arrow{
  width:30px;height:30px;border-radius:50%;display:grid;place-items:center;
  border:1px solid var(--line-strong);color:var(--text-2);font-size:11px;
  transition:all var(--ease);flex-shrink:0;
}
.card-post:hover .card-arrow,.feature-card:hover .card-arrow{
  background:var(--primary);border-color:var(--primary);color:#fff;
}
.feature-grid{display:grid;grid-template-columns:1.45fr 1fr;gap:24px}
.feature-card-lg{grid-row:span 2}
.feature-card-lg .cover{aspect-ratio:16/11}
.feature-card-lg .card-title{font-size:22px;-webkit-line-clamp:2}
.feature-card-lg .card-excerpt{-webkit-line-clamp:3;font-size:14.5px}

/* ================= 10. 最新信息（CMS 区） ================= */
.post-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px}
.empty-state{
  grid-column:1/-1;text-align:center;padding:64px 24px;
  border:1px dashed var(--line-strong);border-radius:var(--r-xl);
  background:rgba(14,21,38,.5);
}
.empty-state i{font-size:30px;color:var(--text-3);margin-bottom:16px;display:block}
.empty-state p{color:var(--text-2);font-size:15px;margin-bottom:20px}

/* ================= 11. 时间轴 ================= */
.timeline{list-style:none;margin:0;padding:0;position:relative}
.timeline::before{
  content:"";position:absolute;left:31px;top:16px;bottom:16px;width:1px;background:var(--line);
}
.timeline-item{display:flex;gap:28px;padding:24px 0;border-bottom:1px solid var(--line)}
.timeline-item:last-child{border-bottom:0}
.timeline-num{
  flex:0 0 62px;text-align:center;position:relative;z-index:1;
  font-size:21px;font-weight:700;color:var(--mint);
  font-variant-numeric:tabular-nums;background:var(--bg);line-height:1.4;
}
.timeline-body h3{font-size:18px;margin-bottom:8px}
.timeline-body p{color:var(--text-2);font-size:14.5px;line-height:1.8;max-width:820px}
.timeline-tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:12px}

/* ================= 12. FAQ ================= */
.faq-list{border-top:1px solid var(--line)}
.faq-item{border-bottom:1px solid var(--line);position:relative}
.faq-item summary{
  list-style:none;cursor:pointer;position:relative;
  padding:22px 52px 22px 22px;font-size:17px;font-weight:600;color:var(--text);
  transition:color var(--ease);
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary:hover{color:var(--mint)}
.faq-item summary::before{
  content:"+";position:absolute;right:18px;top:50%;transform:translateY(-50%);
  color:var(--mint);font-size:20px;font-weight:400;line-height:1;
}
.faq-item[open] summary::before{content:"\2212"}
.faq-item[open] summary{color:var(--mint)}
.faq-item[open]::after{
  content:"";position:absolute;left:0;top:20px;bottom:20px;width:3px;
  border-radius:3px;background:var(--mint);
}
.faq-body{padding:0 52px 24px 22px;color:var(--text-2);font-size:15px;line-height:1.85}

/* ================= 13. CTA 带 ================= */
.cta-band{
  position:relative;overflow:hidden;border-radius:var(--r-xl);
  background:rgba(18,26,44,.62);
  -webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px);
  border:1px solid var(--line-strong);
  padding:44px 46px;display:flex;align-items:center;justify-content:space-between;
  gap:32px;flex-wrap:wrap;
}
.cta-band::before{
  content:"";position:absolute;top:-1px;left:40px;right:40px;height:1px;
  background:linear-gradient(90deg,transparent,rgba(61,240,168,.8),transparent);
}
.cta-band::after{
  content:"";position:absolute;right:-90px;bottom:-160px;width:340px;height:340px;
  border-radius:50%;border:1px solid rgba(27,84,255,.32);pointer-events:none;
}
.cta-copy{position:relative;z-index:2;max-width:660px}
.cta-copy h2{font-size:clamp(22px,2.2vw,30px);margin-bottom:12px}
.cta-copy p{color:var(--text-2);font-size:15px}
.cta-actions{position:relative;z-index:2;display:flex;gap:14px;flex-wrap:wrap}

/* ================= 14. 页脚 ================= */
.site-footer{
  position:relative;margin-top:var(--sec);
  border-top:1px solid var(--line);
  background:linear-gradient(180deg,rgba(14,21,38,.6),rgba(6,10,20,1));
}
.site-footer::before{
  content:"";position:absolute;top:-1px;left:0;right:0;height:1px;
  background:linear-gradient(90deg,transparent,rgba(27,84,255,.9),rgba(61,240,168,.85),transparent);
}
.footer-grid{
  display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:40px;padding:64px 0 44px;
}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:18px}
.footer-about{color:var(--text-2);font-size:14px;line-height:1.85;max-width:340px}
.footer-col h4{font-size:14px;color:var(--text);margin-bottom:18px;font-weight:600;letter-spacing:.04em}
.footer-links{list-style:none;padding:0;margin:0;display:flex;flex-direction:column;gap:10px}
.footer-links a{font-size:14px;color:var(--text-2)}
.footer-links a:hover{color:var(--mint)}
.footer-contact{list-style:none;padding:0;margin:0;display:flex;flex-direction:column;gap:12px}
.footer-contact li{font-size:14px;color:var(--text-2);display:flex;align-items:flex-start;gap:10px}
.footer-contact i{color:var(--mint);font-size:13px;margin-top:5px}
.footer-bottom{
  border-top:1px solid var(--line);padding:22px 0 30px;
  display:flex;align-items:center;justify-content:space-between;gap:18px;flex-wrap:wrap;
}
.footer-bottom p{font-size:13px;color:var(--text-3)}
.to-top{
  display:inline-flex;align-items:center;gap:8px;height:38px;padding:0 18px;
  border-radius:var(--r-pill);border:1px solid var(--line-strong);
  background:transparent;color:var(--text-2);font-size:13px;cursor:pointer;transition:all var(--ease);
}
.to-top:hover{border-color:var(--mint);color:var(--mint);transform:translateY(-2px)}

/* ================= 15. 响应式 ================= */
@media (max-width:1199.98px){
  :root{--sec:64px}
  .post-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .feature-grid{grid-template-columns:1fr 1fr}
  .feature-card-lg{grid-column:span 2;grid-row:auto}
  .footer-grid{grid-template-columns:1.4fr 1fr 1fr;gap:32px}
  .footer-grid .footer-col:last-child{grid-column:span 3}
}
@media (max-width:991.98px){
  :root{--sec:56px}
  .topbar{display:none}
  .nav-inner{height:64px;gap:16px}
  .nav-toggle{display:inline-grid;place-items:center}
  .nav-menu{
    position:absolute;left:0;right:0;top:100%;
    flex-direction:column;align-items:stretch;gap:0;
    background:rgba(8,13,25,.98);
    -webkit-backdrop-filter:blur(18px);backdrop-filter:blur(18px);
    border-bottom:1px solid var(--line);
    max-height:0;overflow:hidden;transition:max-height 260ms ease-out;
  }
  .nav-menu.open{max-height:480px;overflow-y:auto}
  .nav-list{flex-direction:column;align-items:stretch;padding:8px 16px 16px}
  .nav-link{height:52px;padding:0 10px;border-radius:10px;font-size:15.5px}
  .nav-link::after{display:none}
  .nav-link.active{background:rgba(27,84,255,.16);color:var(--mint)}
  .nav-right{margin-left:auto}
  .mega-panel{
    position:absolute;right:16px;left:16px;width:auto;top:calc(100% + 10px);
    grid-template-columns:1fr;padding:20px;max-height:70vh;overflow-y:auto;
  }
  .hero{padding:64px 0 56px}
  .hero-arc{width:480px;height:480px;right:-180px;top:-140px}
  .hero-stats{grid-template-columns:repeat(2,minmax(0,1fr))}
  .feature-grid{grid-template-columns:1fr}
  .feature-card-lg{grid-column:auto}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;padding:48px 0 32px}
  .footer-grid .footer-col:last-child{grid-column:span 2}
  .cta-band{padding:32px 26px}
}
@media (max-width:767.98px){
  :root{--sec:48px}
  .container{padding-left:16px;padding-right:16px}
  .post-grid{grid-template-columns:1fr}
  .hero{min-height:70vh;display:flex;align-items:center;padding:52px 0 44px}
  .hero-title{font-size:clamp(26px,7.4vw,34px)}
  .hero-sub{font-size:15px}
  .hero-actions .btn{width:100%}
  .hero-stats{grid-template-columns:repeat(2,minmax(0,1fr))}
  .stat{padding:16px 18px}
  .section-head{flex-direction:column;align-items:flex-start;gap:14px}
  .timeline::before{left:23px}
  .timeline-item{gap:18px;padding:20px 0}
  .timeline-num{flex:0 0 46px;font-size:18px}
  .faq-item summary{font-size:15.5px;padding:18px 46px 18px 16px}
  .faq-body{padding:0 46px 20px 16px;font-size:14.5px}
  .cta-band{padding:26px 20px}
  .cta-actions{width:100%}
  .cta-actions .btn{width:100%}
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .footer-grid .footer-col:last-child{grid-column:auto}
  .footer-bottom{flex-direction:column;align-items:flex-start}
}
@media (max-width:479.98px){
  .brand-text{font-size:15px}
  .stat-num{font-size:22px}
  .card-body{padding:16px 16px 18px}
  .card-title{font-size:16.5px}
  .topic-chip{min-width:152px;padding:12px 14px}
}

/* roulang page: article */
:root{
  --bg:#060A14;
  --bg-soft:#0A1020;
  --panel:#0E1526;
  --glass:rgba(18,26,44,.62);
  --primary:#1B54FF;
  --primary-soft:#3A6BFF;
  --accent:#3DF0A8;
  --warn:#FF7A29;
  --text:#E8EEF9;
  --muted:#9AA9C4;
  --dim:#64748B;
  --line:rgba(120,160,255,.14);
  --line-strong:rgba(120,160,255,.3);
  --r-xl:22px;
  --r-lg:18px;
  --r-md:16px;
  --r-sm:12px;
  --r-pill:999px;
  --sh-card:inset 0 1px 0 rgba(255,255,255,.04),0 10px 30px rgba(0,0,0,.45);
  --sh-soft:inset 0 1px 0 rgba(255,255,255,.03),0 6px 18px rgba(0,0,0,.35);
  --sh-glow:0 0 0 1px rgba(61,240,168,.35),0 8px 28px rgba(27,84,255,.45);
  --ease:cubic-bezier(.22,.61,.36,1);
  --dur:220ms;
  --nav-h:72px;
}
*{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:1.8;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
body::before{
  content:"";
  position:fixed;
  inset:0;
  z-index:0;
  pointer-events:none;
  background-image:
    linear-gradient(rgba(120,160,255,.055) 1px,transparent 1px),
    linear-gradient(90deg,rgba(120,160,255,.055) 1px,transparent 1px);
  background-size:64px 64px;
}
.site-header,.site-main,.site-footer{position:relative;z-index:1}
img{max-width:100%;display:block;border-style:none}
a{color:inherit;text-decoration:none;transition:color var(--dur) var(--ease)}
a:hover{color:var(--accent)}
h1,h2,h3,h4,h5{margin:0;font-weight:700;line-height:1.3;letter-spacing:.2px}
p{margin:0 0 18px}
ul,ol{margin:0;padding:0;list-style:none}
button{font-family:inherit;cursor:pointer;border:0;background:none;color:inherit}
:focus-visible{outline:2px solid var(--accent);outline-offset:3px;border-radius:6px}
.container{width:100%;max-width:1200px;margin:0 auto;padding-left:20px;padding-right:20px}
.num{font-variant-numeric:tabular-nums;font-feature-settings:"tnum"}

/* ---------- 导航 ---------- */
.site-header{
  position:sticky;
  top:0;
  z-index:50;
  background:linear-gradient(180deg,rgba(6,10,20,.96),rgba(6,10,20,.78));
  backdrop-filter:blur(14px);
  border-bottom:1px solid var(--line);
}
.mainnav{width:100%}
.nav-inner{
  display:flex;
  align-items:center;
  gap:26px;
  min-height:var(--nav-h);
}
.brand{display:flex;align-items:center;gap:12px;flex:0 0 auto}
.brand-mark{
  width:38px;height:38px;
  display:grid;place-items:center;
  border-radius:12px;
  background:linear-gradient(140deg,var(--primary),#0B2AA8);
  color:#fff;font-size:16px;
  box-shadow:0 0 0 1px rgba(61,240,168,.28),0 8px 20px rgba(27,84,255,.38);
}
.brand-text{font-size:19px;font-weight:700;letter-spacing:.5px;white-space:nowrap}
.brand-text em{font-style:normal;color:var(--accent)}
.nav-menu{flex:1 1 auto;min-width:0}
.nav-list{display:flex;align-items:center;gap:6px}
.nav-link{
  display:inline-block;
  padding:10px 14px;
  border-radius:var(--r-pill);
  font-size:15px;
  color:var(--muted);
  position:relative;
  white-space:nowrap;
}
.nav-link:hover{color:var(--text);background:rgba(27,84,255,.12)}
.nav-link.active{color:var(--text);background:rgba(27,84,255,.16)}
.nav-link.active::after{
  content:"";
  position:absolute;left:16px;right:16px;bottom:2px;height:2px;
  border-radius:2px;background:var(--accent);
  box-shadow:0 0 12px rgba(61,240,168,.8);
}
.nav-right{flex:0 0 auto;margin-left:auto}
.mega-wrap{position:relative}
.mega-trigger{
  display:inline-flex;align-items:center;gap:8px;
  height:42px;padding:0 20px;
  border-radius:var(--r-pill);
  border:1px solid var(--line-strong);
  color:var(--text);font-size:14px;
  transition:all var(--dur) var(--ease);
}
.mega-trigger:hover{border-color:var(--accent);color:var(--accent);box-shadow:0 0 18px rgba(61,240,168,.22)}
.mega-trigger i{transition:transform var(--dur) var(--ease);font-size:12px}
.mega-trigger[aria-expanded="true"] i{transform:rotate(180deg)}
.mega-panel{
  position:absolute;right:0;top:calc(100% + 14px);
  width:min(680px,calc(100vw - 40px));
  display:grid;grid-template-columns:1.1fr 1.2fr 1fr;gap:20px;
  padding:24px;
  background:var(--glass);
  backdrop-filter:blur(18px);
  border:1px solid var(--line-strong);
  border-radius:var(--r-lg);
  box-shadow:0 24px 60px rgba(0,0,0,.6);
  opacity:0;visibility:hidden;transform:translateY(8px);
  transition:opacity var(--dur) var(--ease),transform var(--dur) var(--ease),visibility var(--dur);
}
.mega-panel::before{
  content:"";position:absolute;left:16px;right:16px;top:0;height:1px;
  background:linear-gradient(90deg,transparent,var(--accent),transparent);
}
.mega-wrap:hover .mega-panel,.mega-panel.is-open{opacity:1;visibility:visible;transform:translateY(0)}
.mega-col-title{font-size:12px;letter-spacing:1px;color:var(--dim);margin-bottom:14px}
.mega-links li+li{margin-top:4px}
.mega-links a{
  display:flex;align-items:center;justify-content:space-between;gap:10px;
  padding:9px 12px;border-radius:var(--r-sm);
  font-size:14px;color:var(--muted);
}
.mega-links a i{opacity:0;transform:translateX(-4px);transition:all var(--dur) var(--ease);font-size:11px;color:var(--accent)}
.mega-links a:hover{background:rgba(27,84,255,.16);color:var(--text)}
.mega-links a:hover i{opacity:1;transform:translateX(0)}
.mega-post{display:block;padding:12px;border-radius:var(--r-sm);border:1px solid transparent}
.mega-post+.mega-post{margin-top:8px}
.mega-post strong{display:block;font-size:14px;font-weight:600;line-height:1.55;margin-bottom:6px}
.mega-post span{font-size:12px;color:var(--dim)}
.mega-post:hover{background:rgba(27,84,255,.14);border-color:var(--line);color:inherit}
.mega-entry{
  display:flex;align-items:center;gap:12px;
  padding:14px;border-radius:var(--r-md);
  background:linear-gradient(140deg,rgba(27,84,255,.28),rgba(61,240,168,.12));
  border:1px solid var(--line-strong);
}
.mega-entry i{font-size:18px;color:var(--accent)}
.mega-entry strong{font-size:14px;font-weight:600;display:block}
.mega-entry span{font-size:12px;color:var(--muted)}

/* ---------- 通用组件 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:10px;
  height:46px;padding:0 26px;border-radius:var(--r-pill);
  font-size:15px;font-weight:600;line-height:1;
  transition:transform var(--dur) var(--ease),box-shadow var(--dur) var(--ease),background var(--dur) var(--ease),color var(--dur) var(--ease),border-color var(--dur) var(--ease);
}
.btn-main{background:var(--primary);color:#fff;box-shadow:var(--sh-glow)}
.btn-main:hover{background:var(--primary-soft);color:#fff;transform:translateY(-2px);box-shadow:0 0 0 1px rgba(61,240,168,.5),0 14px 34px rgba(27,84,255,.55)}
.btn-line{border:1px solid var(--line-strong);color:var(--text);background:rgba(14,21,38,.5)}
.btn-line:hover{border-color:var(--primary);background:rgba(27,84,255,.2);color:#fff;transform:translateY(-2px)}
.btn-ghost{color:var(--muted);padding:0 8px;height:auto}
.btn-ghost:hover{color:var(--accent)}
.btn-ghost i{transition:transform var(--dur) var(--ease)}
.btn-ghost:hover i{transform:translateX(4px)}
.badge-pill{
  display:inline-flex;align-items:center;gap:6px;
  padding:4px 12px;border-radius:var(--r-pill);
  font-size:12px;letter-spacing:.4px;
  color:var(--accent);
  background:rgba(61,240,168,.1);
  border:1px solid rgba(61,240,168,.28);
}
.badge-muted{
  color:var(--muted);background:rgba(120,160,255,.08);border-color:var(--line);
}
.sec{padding:72px 0}
.sec-head{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;margin-bottom:28px}
.sec-head h2{font-size:clamp(24px,2.6vw,32px)}
.sec-head p{color:var(--muted);font-size:14px;margin:8px 0 0}
.divider{height:1px;background:var(--line);margin:0}

/* ---------- 文章头部 ---------- */
.art-hero{
  position:relative;
  overflow:hidden;
  padding:56px 0 48px;
  background-image:linear-gradient(120deg,rgba(6,10,20,.94),rgba(6,10,20,.78)),url("/assets/images/backpic/back-2.png");
  background-size:cover;
  background-position:center;
  border-bottom:1px solid var(--line);
}
.art-hero::after{
  content:"";
  position:absolute;left:-15%;right:-15%;bottom:-60%;height:120%;
  background:radial-gradient(50% 60% at 50% 100%,rgba(27,84,255,.4),transparent 68%);
  pointer-events:none;
}
.art-hero .container{position:relative;z-index:1}
.crumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--dim);margin-bottom:20px}
.crumb a{color:var(--dim)}
.crumb a:hover{color:var(--accent)}
.crumb span.sep{color:rgba(120,160,255,.4)}
.crumb .current{color:var(--muted);max-width:60ch;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.art-title{
  font-size:clamp(28px,3.8vw,46px);
  line-height:1.28;
  max-width:20ch;
  margin-bottom:22px;
}
.art-meta{display:flex;flex-wrap:wrap;align-items:center;gap:10px 18px;font-size:13px;color:var(--muted)}
.art-meta .dot{width:4px;height:4px;border-radius:50%;background:var(--line-strong)}
.art-meta i{color:var(--dim);margin-right:6px}

/* ---------- 文章主体布局 ---------- */
.art-wrap{padding:48px 0 8px}
.art-grid{display:grid;grid-template-columns:minmax(0,8fr) minmax(0,4fr);gap:36px;align-items:start}
.art-card{
  background:linear-gradient(180deg,rgba(18,26,44,.72),rgba(14,21,38,.5));
  border:1px solid var(--line);
  border-radius:var(--r-xl);
  box-shadow:var(--sh-card);
  padding:34px 38px 38px;
}
.article-body{font-size:16.5px;color:#D8E2F4}
.article-body>p:first-of-type{font-size:17.5px;color:var(--text)}
.article-body h2{
  position:relative;
  font-size:clamp(21px,2.2vw,27px);
  margin:44px 0 18px;
  padding-left:16px;
}
.article-body h2::before{
  content:"";position:absolute;left:0;top:.22em;bottom:.22em;width:3px;border-radius:3px;
  background:var(--accent);box-shadow:0 0 14px rgba(61,240,168,.7);
}
.article-body h3{font-size:20px;margin:32px 0 14px;color:var(--text)}
.article-body h4{font-size:17px;margin:24px 0 12px;color:var(--muted)}
.article-body p{margin:0 0 18px;color:#CBD7EC}
.article-body ul,.article-body ol{margin:0 0 20px;padding-left:22px}
.article-body ul li{list-style:none;position:relative;padding-left:16px;margin-bottom:10px;color:#CBD7EC}
.article-body ul li::before{
  content:"";position:absolute;left:0;top:.72em;width:6px;height:6px;border-radius:2px;
  background:var(--primary);transform:rotate(45deg);
}
.article-body ol{counter-reset:li;padding-left:0}
.article-body ol li{list-style:none;counter-increment:li;position:relative;padding-left:34px;margin-bottom:10px;color:#CBD7EC}
.article-body ol li::before{
  content:counter(li,decimal-leading-zero);
  position:absolute;left:0;top:.1em;
  font-size:13px;font-variant-numeric:tabular-nums;
  color:var(--accent);border:1px solid rgba(61,240,168,.3);
  border-radius:8px;padding:0 6px;
}
.article-body blockquote{
  margin:24px 0;
  padding:20px 24px;
  background:var(--glass);
  border-left:3px solid var(--primary);
  border-radius:var(--r-md);
  color:var(--muted);
  backdrop-filter:blur(8px);
}
.article-body blockquote p:last-child{margin-bottom:0}
.article-body img{border-radius:var(--r-md);margin:8px auto 6px;box-shadow:var(--sh-soft)}
.article-body a{color:var(--accent);border-bottom:1px dashed rgba(61,240,168,.45)}
.article-body a:hover{color:#fff;border-bottom-color:#fff}
.article-body table{width:100%;display:block;overflow-x:auto;border-collapse:collapse;margin:22px 0;font-size:15px}
.article-body th,.article-body td{border:1px solid var(--line);padding:12px 14px;text-align:left;white-space:nowrap}
.article-body th{background:rgba(27,84,255,.16);color:var(--text)}
.article-body td{color:#CBD7EC}
.article-body code{background:rgba(27,84,255,.16);color:var(--accent);padding:2px 7px;border-radius:6px;font-size:14px}
.article-body hr{border:0;height:1px;background:var(--line);margin:34px 0}
.notfound{text-align:center;padding:40px 10px 12px}
.notfound i{font-size:40px;color:var(--dim);margin-bottom:18px}
.notfound h2{font-size:22px;margin-bottom:10px;padding-left:0}
.notfound h2::before{display:none}
.notfound p{color:var(--muted);margin-bottom:24px}

/* ---------- 标签与分享 ---------- */
.tag-row{display:flex;flex-wrap:wrap;gap:10px;margin:36px 0 0;padding-top:26px;border-top:1px solid var(--line)}
.tag-row .tag{
  display:inline-flex;align-items:center;gap:6px;
  padding:6px 14px;border-radius:var(--r-pill);
  font-size:13px;color:var(--muted);
  background:rgba(120,160,255,.08);
  border:1px solid var(--line);
  transition:all var(--dur) var(--ease);
}
.tag-row .tag:hover{color:var(--accent);border-color:rgba(61,240,168,.4);background:rgba(61,240,168,.1)}
.share-bar{
  display:flex;flex-wrap:wrap;align-items:center;gap:12px;
  margin-top:26px;padding:20px 22px;
  background:var(--glass);
  border:1px solid var(--line-strong);
  border-radius:var(--r-lg);
  backdrop-filter:blur(10px);
}
.share-bar .share-tip{flex:1 1 200px;font-size:14px;color:var(--muted);margin:0}

/* ---------- 侧栏 ---------- */
.art-side{position:sticky;top:calc(var(--nav-h) + 20px);display:grid;gap:22px}
.side-card{
  background:var(--glass);
  border:1px solid var(--line);
  border-radius:var(--r-lg);
  padding:22px;
  backdrop-filter:blur(12px);
  box-shadow:var(--sh-soft);
}
.side-card h3{
  font-size:15px;letter-spacing:.6px;color:var(--text);
  display:flex;align-items:center;gap:9px;margin-bottom:16px;
}
.side-card h3 i{color:var(--accent);font-size:13px}
.toc-list li+li{margin-top:2px}
.toc-list a{
  display:block;padding:8px 10px;border-radius:10px;
  font-size:14px;color:var(--muted);line-height:1.6;
  border-left:2px solid transparent;
}
.toc-list a:hover,.toc-list a.is-active{
  color:var(--text);background:rgba(27,84,255,.16);border-left-color:var(--accent);
}
.rec-list li+li{margin-top:12px;padding-top:12px;border-top:1px solid var(--line)}
.rec-list a{display:flex;gap:12px;align-items:flex-start}
.rec-list .idx{
  font-size:13px;color:var(--accent);font-variant-numeric:tabular-nums;
  border:1px solid rgba(61,240,168,.3);border-radius:8px;padding:0 6px;flex:0 0 auto;margin-top:3px;
}
.rec-list strong{font-size:14px;font-weight:600;line-height:1.6;color:var(--text)}
.rec-list span.meta{display:block;font-size:12px;color:var(--dim);margin-top:4px}
.rec-list a:hover strong{color:var(--accent)}
.side-actions{display:grid;gap:10px}
.side-actions .btn{width:100%}
.side-note{font-size:12px;color:var(--dim);margin:14px 0 0;line-height:1.7}

/* ---------- 相关推荐 ---------- */
.grid-3{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px}
.rc-card{
  display:flex;flex-direction:column;
  background:linear-gradient(180deg,rgba(18,26,44,.7),rgba(14,21,38,.5));
  border:1px solid var(--line);
  border-radius:var(--r-md);
  overflow:hidden;
  box-shadow:var(--sh-soft);
  transition:transform var(--dur) var(--ease),border-color var(--dur) var(--ease),box-shadow var(--dur) var(--ease);
}
.rc-card:hover{transform:translateY(-4px);border-color:rgba(27,84,255,.5);box-shadow:0 16px 40px rgba(0,0,0,.5)}
.rc-cover{position:relative;aspect-ratio:16/9;overflow:hidden}
.rc-cover img{width:100%;height:100%;object-fit:cover;transition:transform 320ms var(--ease)}
.rc-card:hover .rc-cover img{transform:scale(1.04)}
.rc-cover::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,transparent 30%,rgba(6,10,20,.82))}
.rc-cover .badge-pill{position:absolute;left:14px;top:14px;z-index:2}
.rc-body{padding:18px 20px 22px;display:flex;flex-direction:column;gap:10px;flex:1}
.rc-body h3{font-size:17px;line-height:1.55;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.rc-body p{font-size:14px;color:var(--muted);margin:0;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.rc-foot{margin-top:auto;display:flex;align-items:center;justify-content:space-between;font-size:12.5px;color:var(--dim)}
.rc-foot i{color:var(--primary);transition:transform var(--dur) var(--ease)}
.rc-card:hover .rc-foot i{transform:translateX(4px);color:var(--accent)}

/* ---------- FAQ ---------- */
.faq-wrap{max-width:900px;margin:0 auto}
.accordion-item{background:transparent;border:0;border-bottom:1px solid var(--line)}
.accordion-button{
  background:transparent;color:var(--text);
  font-size:17px;font-weight:600;
  padding:22px 4px;box-shadow:none;
  transition:color var(--dur) var(--ease),box-shadow var(--dur) var(--ease);
}
.accordion-button:not(.collapsed){
  color:var(--accent);background:transparent;box-shadow:inset 3px 0 0 var(--accent);
}
.accordion-button:focus{box-shadow:inset 3px 0 0 var(--accent);outline:none}
.accordion-button::after{
  content:"+";background-image:none;width:auto;height:auto;
  font-size:20px;line-height:1;color:var(--dim);
  transform:none;transition:transform var(--dur) var(--ease),color var(--dur) var(--ease);
  display:grid;place-items:center;margin-left:18px;
}
.accordion-button:not(.collapsed)::after{content:"+";transform:rotate(135deg);color:var(--accent)}
.accordion-body{padding:0 8px 24px;color:var(--muted);font-size:15px}

/* ---------- CTA ---------- */
.cta-band{
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:24px;
  padding:38px 40px;
  border-radius:var(--r-xl);
  background:linear-gradient(120deg,rgba(27,84,255,.3),rgba(61,240,168,.12)),var(--panel);
  border:1px solid var(--line-strong);
  box-shadow:var(--sh-card);
}
.cta-band h2{font-size:clamp(21px,2.4vw,28px);margin-bottom:10px}
.cta-band p{color:var(--muted);margin:0;font-size:15px;max-width:56ch}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px}

/* ---------- 页脚 ---------- */
.site-footer{
  margin-top:80px;
  padding:64px 0 0;
  border-top:1px solid var(--line);
  background:linear-gradient(180deg,rgba(14,21,38,.6),rgba(6,10,20,.95));
  position:relative;
}
.site-footer::before{
  content:"";position:absolute;left:0;right:0;top:0;height:2px;
  background:linear-gradient(90deg,transparent,var(--primary),var(--accent),transparent);
  opacity:.7;
}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.3fr;gap:36px;padding-bottom:44px}
.footer-brand{display:flex;align-items:center;gap:12px;margin-bottom:16px}
.footer-about{font-size:14px;color:var(--muted);margin:0;max-width:42ch}
.footer-col h4{font-size:15px;margin-bottom:16px;color:var(--text)}
.footer-links li+li{margin-top:10px}
.footer-links a{font-size:14px;color:var(--muted)}
.footer-links a:hover{color:var(--accent);padding-left:4px}
.footer-contact li{display:flex;gap:10px;font-size:14px;color:var(--muted);line-height:1.7}
.footer-contact li+li{margin-top:12px}
.footer-contact i{color:var(--accent);margin-top:5px;font-size:13px}
.footer-bottom{
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:14px;
  padding:20px 0 26px;border-top:1px solid var(--line);
  font-size:13px;color:var(--dim);
}
.footer-bottom p{margin:0}
.to-top{
  display:inline-flex;align-items:center;gap:8px;
  padding:9px 18px;border-radius:var(--r-pill);
  border:1px solid var(--line-strong);color:var(--muted);font-size:13px;
  transition:all var(--dur) var(--ease);
}
.to-top:hover{border-color:var(--accent);color:var(--accent);transform:translateY(-2px)}

/* ---------- 响应式 ---------- */
@media (max-width:1199px){
  .art-grid{grid-template-columns:minmax(0,7fr) minmax(0,5fr);gap:26px}
  .art-card{padding:28px 26px 30px}
  .footer-grid{grid-template-columns:1.4fr 1fr 1fr;gap:28px}
  .footer-col:last-child{grid-column:1/-1}
}
@media (max-width:991px){
  .nav-inner{flex-wrap:wrap;gap:14px;padding-top:12px;padding-bottom:12px}
  .nav-menu{order:3;width:100%;overflow-x:auto;-webkit-overflow-scrolling:touch;scrollbar-width:none}
  .nav-menu::-webkit-scrollbar{display:none}
  .nav-list{gap:4px;padding-bottom:4px}
  .nav-link{padding:8px 12px;font-size:14px}
  .nav-right{margin-left:auto}
  .mega-panel{position:fixed;left:16px;right:16px;top:calc(var(--nav-h) + 6px);width:auto;grid-template-columns:1fr;max-height:70vh;overflow-y:auto}
  .art-side{position:static}
  .art-grid{grid-template-columns:minmax(0,1fr)}
  .grid-3{grid-template-columns:repeat(2,minmax(0,1fr))}
  .sec{padding:56px 0}
  .art-hero{padding:40px 0 36px}
  .art-title{max-width:none}
  .cta-band{padding:30px 26px}
}
@media (max-width:767px){
  body{font-size:15.5px}
  .container{padding-left:16px;padding-right:16px}
  .art-card{padding:24px 18px 26px;border-radius:var(--r-lg)}
  .article-body{font-size:16px}
  .article-body h2{margin-top:34px}
  .grid-3{grid-template-columns:minmax(0,1fr)}
  .sec{padding:46px 0}
  .sec-head{flex-direction:column;align-items:flex-start;gap:8px}
  .art-meta{gap:8px 14px}
  .art-hero{padding:32px 0 30px}
  .crumb .current{max-width:100%}
  .footer-grid{grid-template-columns:1fr;gap:26px;padding-bottom:32px}
  .cta-band{padding:26px 20px}
  .cta-actions{width:100%}
  .cta-actions .btn{flex:1 1 auto}
  .share-bar{padding:16px}
  .site-footer{margin-top:56px;padding-top:48px}
}
@media (max-width:480px){
  .brand-text{font-size:17px}
  .art-title{font-size:26px}
  .btn{height:44px;padding:0 20px;font-size:14px}
  .article-body h3{font-size:18px}
  .footer-bottom{flex-direction:column;align-items:flex-start}
}

/* roulang page: category1 */
:root{
  --bg:#060A14;
  --panel:#0E1526;
  --glass:rgba(18,26,44,.62);
  --primary:#1B54FF;
  --primary-soft:rgba(27,84,255,.16);
  --accent:#3DF0A8;
  --orange:#FF7A29;
  --text:#E8EEF9;
  --muted:#9AA9C4;
  --weak:#64748B;
  --line:rgba(120,160,255,.14);
  --r-xl:22px;
  --r-lg:16px;
  --r-sm:12px;
  --shadow-card:0 1px 0 rgba(255,255,255,.04) inset, 0 10px 30px rgba(0,0,0,.45);
  --glow:0 0 0 1px rgba(61,240,168,.35), 0 8px 28px rgba(27,84,255,.45);
  --container:1200px;
  --nav-h:74px;
  --ease:cubic-bezier(.22,.61,.36,1);
}

*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
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:1.8;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
body::before{
  content:"";
  position:fixed;
  inset:0;
  background-image:linear-gradient(rgba(120,160,255,.055) 1px,transparent 1px),linear-gradient(90deg,rgba(120,160,255,.055) 1px,transparent 1px);
  background-size:64px 64px;
  pointer-events:none;
  z-index:0;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none;transition:color .2s var(--ease)}
a:hover{color:var(--accent)}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4{margin:0;font-weight:700;line-height:1.3;letter-spacing:.2px}
p{margin:0}
button{font-family:inherit}
:focus-visible{outline:2px solid var(--accent);outline-offset:3px;border-radius:6px}
.num{font-variant-numeric:tabular-nums;font-feature-settings:"tnum"}

.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 24px;position:relative;z-index:1}
.section{padding:88px 0;position:relative;z-index:1}
.section-head{margin-bottom:28px;display:flex;align-items:flex-end;justify-content:space-between;gap:20px;flex-wrap:wrap}
.section-head h2{font-size:clamp(24px,2.6vw,34px)}
.section-head p{color:var(--muted);font-size:15px;margin-top:8px}
.link-more{color:var(--muted);font-size:14px;display:inline-flex;align-items:center;gap:8px;white-space:nowrap}
.link-more:hover{color:var(--accent)}
.link-more i{transition:transform .22s var(--ease)}
.link-more:hover i{transform:translateX(4px)}

/* ---------- 顶部信息条 ---------- */
.topbar{
  background:rgba(9,14,26,.9);
  border-bottom:1px solid var(--line);
  font-size:13px;
  color:var(--weak);
  position:relative;
  z-index:60;
}
.topbar-inner{display:flex;align-items:center;justify-content:space-between;gap:16px;height:34px}
.topbar-notice{display:flex;align-items:center;gap:10px;overflow:hidden;white-space:nowrap}
.topbar-notice i{color:var(--accent)}
.topbar-meta{display:flex;align-items:center;gap:18px}
.topbar-meta span{display:inline-flex;align-items:center;gap:6px}

/* ---------- 导航 ---------- */
.mainnav{
  position:sticky;
  top:0;
  z-index:70;
  background:rgba(6,10,20,.86);
  backdrop-filter:blur(14px);
  border-bottom:1px solid var(--line);
}
.nav-inner{display:flex;align-items:center;justify-content:space-between;gap:18px;height:var(--nav-h)}
.brand{display:flex;align-items:center;gap:12px;flex-shrink:0}
.brand-mark{
  width:40px;height:40px;border-radius:12px;
  display:grid;place-items:center;
  background:linear-gradient(140deg,var(--primary),#0c2ba8);
  box-shadow:0 0 0 1px rgba(61,240,168,.28), 0 8px 20px rgba(27,84,255,.35);
  color:#fff;font-size:16px;
}
.brand-text{font-size:19px;font-weight:700;letter-spacing:.4px;color:var(--text)}
.brand-text em{font-style:normal;color:var(--accent)}
.nav-menu{display:flex;align-items:center}
.nav-list{display:flex;align-items:center;gap:2px}
.nav-link{
  position:relative;
  display:block;
  padding:10px 14px;
  border-radius:999px;
  color:var(--muted);
  font-size:15px;
  white-space:nowrap;
  transition:color .2s var(--ease),background .2s var(--ease);
}
.nav-link:hover{color:var(--text);background:rgba(120,160,255,.08)}
.nav-link.active{color:#fff}
.nav-link.active::after{
  content:"";
  position:absolute;
  left:14px;right:14px;bottom:2px;
  height:2px;border-radius:2px;
  background:var(--accent);
  box-shadow:0 0 10px rgba(61,240,168,.8);
}
.nav-right{display:flex;align-items:center;gap:12px}
.mega-wrap{position:relative}
.mega-trigger{
  height:40px;padding:0 18px;
  border-radius:999px;
  background:transparent;
  border:1px solid var(--line);
  color:var(--muted);
  font-size:14px;
  display:inline-flex;align-items:center;gap:8px;
  cursor:pointer;
  transition:all .2s var(--ease);
}
.mega-trigger:hover{color:var(--text);border-color:rgba(61,240,168,.45);background:rgba(61,240,168,.06)}
.mega-trigger i{font-size:11px;transition:transform .24s var(--ease)}
.mega-trigger[aria-expanded="true"]{color:var(--text);border-color:rgba(61,240,168,.5)}
.mega-trigger[aria-expanded="true"] i{transform:rotate(180deg)}
.mega-panel{
  position:absolute;
  right:0;
  top:calc(100% + 14px);
  width:min(760px,88vw);
  padding:24px;
  border-radius:var(--r-xl);
  background:var(--glass);
  backdrop-filter:blur(18px);
  border:1px solid var(--line);
  box-shadow:0 24px 60px rgba(0,0,0,.6);
  display:grid;
  grid-template-columns:1.1fr 1.2fr 1fr;
  gap:22px;
  opacity:0;
  visibility:hidden;
  transform:translateY(8px);
  transition:opacity .22s var(--ease),transform .22s var(--ease),visibility .22s;
}
.mega-panel::before{
  content:"";
  position:absolute;left:20px;right:20px;top:0;height:1px;
  background:linear-gradient(90deg,transparent,rgba(61,240,168,.9),transparent);
}
.mega-panel.open{opacity:1;visibility:visible;transform:translateY(0)}
.mega-col-title{font-size:12px;letter-spacing:1.4px;color:var(--weak);margin-bottom:14px;text-transform:uppercase}
.mega-links li+li{margin-top:8px}
.mega-links a{
  display:flex;align-items:center;justify-content:space-between;gap:10px;
  padding:9px 12px;border-radius:10px;
  color:var(--muted);font-size:14px;
  transition:all .2s var(--ease);
}
.mega-links a i{font-size:10px;opacity:.5;transition:transform .2s var(--ease)}
.mega-links a:hover{background:rgba(27,84,255,.16);color:var(--text)}
.mega-links a:hover i{transform:translateX(3px);opacity:1}
.mega-post{display:block;padding:12px 14px;border-radius:12px;background:rgba(10,16,30,.7);border:1px solid var(--line);transition:all .2s var(--ease)}
.mega-post+.mega-post{margin-top:10px}
.mega-post strong{display:block;font-size:14px;font-weight:600;color:var(--text);line-height:1.5}
.mega-post span{display:block;font-size:12px;color:var(--weak);margin-top:6px}
.mega-post:hover{border-color:rgba(61,240,168,.4);transform:translateY(-2px)}
.mega-entry{
  display:flex;flex-direction:column;gap:8px;
  padding:16px;border-radius:14px;
  background:linear-gradient(160deg,rgba(27,84,255,.22),rgba(61,240,168,.08));
  border:1px solid rgba(61,240,168,.22);
  transition:transform .2s var(--ease);
}
.mega-entry:hover{transform:translateY(-3px)}
.mega-entry i{color:var(--accent);font-size:18px}
.mega-entry strong{font-size:14px;color:var(--text)}
.mega-entry span{font-size:12px;color:var(--muted);line-height:1.6}
.nav-toggle{
  display:none;
  width:42px;height:42px;border-radius:12px;
  background:transparent;border:1px solid var(--line);color:var(--text);
  cursor:pointer;
}

/* ---------- 按钮 ---------- */
.btn-main,.btn-ghost,.btn-line{
  display:inline-flex;align-items:center;justify-content:center;gap:9px;
  height:46px;padding:0 26px;border-radius:999px;
  font-size:15px;font-weight:600;
  cursor:pointer;border:0;
  transition:transform .22s var(--ease),box-shadow .22s var(--ease),background .22s var(--ease),color .22s var(--ease),border-color .22s var(--ease);
}
.btn-main{background:var(--primary);color:#fff;box-shadow:var(--glow)}
.btn-main:hover{color:#fff;transform:translateY(-2px);box-shadow:0 0 0 1px rgba(61,240,168,.5),0 14px 34px rgba(27,84,255,.6)}
.btn-line{background:transparent;border:1px solid rgba(27,84,255,.7);color:var(--text)}
.btn-line:hover{border-color:var(--accent);color:var(--accent);background:rgba(61,240,168,.07)}
.btn-ghost{background:transparent;color:var(--muted);padding:0 6px}
.btn-ghost:hover{color:var(--accent)}
.btn-ghost i{transition:transform .22s var(--ease)}
.btn-ghost:hover i{transform:translateX(4px)}
.btn-lg{height:54px;padding:0 32px;font-size:16px}

/* ---------- Hero ---------- */
.cat-hero{
  position:relative;
  min-height:330px;
  display:flex;align-items:center;
  background-image:url("/assets/images/backpic/back-1.webp");
  background-size:cover;
  background-position:center;
  overflow:hidden;
  border-bottom:1px solid var(--line);
}
.cat-hero::before{
  content:"";
  position:absolute;inset:0;
  background:linear-gradient(100deg,rgba(6,10,20,.96) 0%,rgba(6,10,20,.78) 48%,rgba(6,10,20,.5) 100%);
}
.cat-hero::after{
  content:"";
  position:absolute;
  right:-160px;top:-120px;
  width:620px;height:620px;
  border-radius:50%;
  border:1px solid rgba(61,240,168,.16);
  box-shadow:0 0 0 60px rgba(27,84,255,.05),0 0 0 140px rgba(27,84,255,.03);
  pointer-events:none;
}
.hero-inner{padding:64px 0 56px;max-width:760px}
.crumb{font-size:13px;color:var(--weak);margin-bottom:18px;display:flex;align-items:center;gap:8px;flex-wrap:wrap}
.crumb a:hover{color:var(--accent)}
.crumb span.current{color:var(--muted)}
.cat-hero h1{font-size:clamp(30px,4.2vw,52px);line-height:1.25;font-weight:700}
.cat-hero h1 em{font-style:normal;color:var(--accent)}
.hero-sub{margin-top:18px;font-size:17px;color:var(--muted);max-width:640px}
.hero-actions{margin-top:30px;display:flex;gap:14px;flex-wrap:wrap}
.hero-stats{
  margin-top:34px;
  display:flex;gap:14px;flex-wrap:wrap;
  padding:16px 20px;
  border-radius:var(--r-lg);
  background:var(--glass);
  border:1px solid var(--line);
  backdrop-filter:blur(14px);
  max-width:640px;
}
.stat-item{min-width:120px;flex:1}
.stat-item .v{font-size:22px;font-weight:700;color:var(--accent);letter-spacing:.5px}
.stat-item .k{font-size:13px;color:var(--weak);margin-top:2px}

/* ---------- 分类互链 ---------- */
.cat-switch{
  position:sticky;
  top:var(--nav-h);
  z-index:55;
  background:rgba(6,10,20,.92);
  backdrop-filter:blur(14px);
  border-bottom:1px solid var(--line);
}
.cat-switch-inner{display:flex;gap:10px;align-items:center;padding:14px 24px;overflow-x:auto;scrollbar-width:none}
.cat-switch-inner::-webkit-scrollbar{display:none}
.cat-pill{
  flex:0 0 auto;
  display:inline-flex;align-items:center;gap:8px;
  height:40px;padding:0 20px;
  border-radius:999px;
  font-size:14px;font-weight:600;
  color:var(--muted);
  background:rgba(18,26,44,.6);
  border:1px solid var(--line);
  white-space:nowrap;
  transition:all .22s var(--ease);
}
.cat-pill i{font-size:12px;opacity:.7}
.cat-pill:hover{color:var(--text);border-color:rgba(61,240,168,.4);transform:translateY(-2px)}
.cat-pill.active{background:var(--primary);border-color:var(--primary);color:#fff;box-shadow:0 8px 22px rgba(27,84,255,.4)}
.cat-pill.active i{opacity:1}

/* ---------- 卡片网格 ---------- */
.grid-cards{
  display:grid;
  grid-template-columns:repeat(3,minmax(0,1fr));
  gap:24px;
}
.card{
  position:relative;
  display:flex;flex-direction:column;
  border-radius:var(--r-lg);
  background:linear-gradient(180deg,rgba(18,26,44,.85),rgba(12,18,32,.9));
  border:1px solid var(--line);
  box-shadow:var(--shadow-card);
  overflow:hidden;
  transition:transform .24s var(--ease),border-color .24s var(--ease),box-shadow .24s var(--ease);
}
.card:hover{transform:translateY(-4px);border-color:rgba(61,240,168,.4);box-shadow:0 18px 44px rgba(0,0,0,.55)}
.card-cover{position:relative;aspect-ratio:16/9;overflow:hidden}
.card-cover img{width:100%;height:100%;object-fit:cover;transition:transform .45s var(--ease)}
.card:hover .card-cover img{transform:scale(1.04)}
.card-cover::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(6,10,20,.1),rgba(6,10,20,.72))}
.badge-cat{
  position:absolute;left:14px;top:14px;z-index:2;
  display:inline-flex;align-items:center;gap:6px;
  height:26px;padding:0 12px;border-radius:999px;
  font-size:12px;font-weight:600;color:var(--accent);
  background:rgba(10,16,30,.72);
  border:1px solid rgba(61,240,168,.35);
  backdrop-filter:blur(6px);
}
.badge-live{
  position:absolute;right:14px;top:14px;z-index:2;
  display:inline-flex;align-items:center;gap:6px;
  height:26px;padding:0 12px;border-radius:999px;
  font-size:12px;font-weight:600;color:#fff;
  background:rgba(255,122,41,.9);
}
.badge-live i{font-size:8px}
.card-body{padding:20px 22px 22px;display:flex;flex-direction:column;gap:10px;flex:1}
.card-body h3{font-size:18px;line-height:1.5;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.card-body p{font-size:14px;color:var(--muted);line-height:1.75;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.card-foot{margin-top:auto;padding-top:12px;border-top:1px solid var(--line);display:flex;align-items:center;justify-content:space-between;font-size:13px;color:var(--weak)}
.card-foot .go{display:inline-flex;align-items:center;gap:6px;color:var(--muted)}
.card-foot .go i{transition:transform .2s var(--ease)}
.card:hover .card-foot .go{color:var(--accent)}
.card:hover .card-foot .go i{transform:translateX(4px)}
.card-wide{grid-column:span 2;flex-direction:row}
.card-wide .card-cover{width:52%;aspect-ratio:auto;min-height:100%}
.card-wide .card-body{padding:26px 28px;justify-content:center}
.card-wide .card-body h3{font-size:22px;-webkit-line-clamp:3}
.card-wide .card-body p{-webkit-line-clamp:3;font-size:15px}
.card-wide .card-cover::after{background:linear-gradient(90deg,rgba(6,10,20,.15),rgba(6,10,20,.72))}

/* ---------- 要点清单 ---------- */
.points-panel{
  border-radius:var(--r-xl);
  background:linear-gradient(180deg,rgba(18,26,44,.8),rgba(10,16,30,.72));
  border:1px solid var(--line);
  padding:40px;
  position:relative;
  overflow:hidden;
}
.points-panel::after{
  content:"";
  position:absolute;right:-120px;bottom:-140px;
  width:420px;height:420px;border-radius:50%;
  border:1px solid rgba(61,240,168,.14);
  box-shadow:0 0 0 52px rgba(27,84,255,.045);
  pointer-events:none;
}
.points-list{margin-top:26px;display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:0 44px}
.point-item{display:flex;gap:18px;padding:20px 0;border-top:1px solid var(--line)}
.point-item:first-child,.point-item:nth-child(2){border-top:0}
.point-num{
  font-size:15px;font-weight:700;color:var(--accent);
  font-variant-numeric:tabular-nums;
  min-width:32px;padding-top:2px;
}
.point-item h4{font-size:16px;font-weight:600}
.point-item p{font-size:14px;color:var(--muted);margin-top:6px}

/* ---------- 流程轨道 ---------- */
.track{position:relative;margin-top:34px}
.track::before{content:"";position:absolute;left:26px;top:8px;bottom:8px;width:1px;background:var(--line)}
.track-row{position:relative;display:flex;gap:26px;padding:22px 0}
.track-idx{
  flex:0 0 54px;height:54px;border-radius:16px;
  display:grid;place-items:center;
  background:rgba(18,26,44,.9);
  border:1px solid var(--line);
  color:var(--accent);
  font-size:16px;font-weight:700;
  font-variant-numeric:tabular-nums;
  position:relative;z-index:1;
}
.track-body h3{font-size:18px}
.track-body p{color:var(--muted);font-size:15px;margin-top:8px;max-width:760px}

/* ---------- FAQ ---------- */
.faq{border-top:1px solid var(--line)}
.faq-item{border-bottom:1px solid var(--line);position:relative}
.faq-item::before{
  content:"";position:absolute;left:-16px;top:22px;bottom:22px;width:3px;border-radius:3px;
  background:var(--accent);opacity:0;transform:scaleY(.4);transform-origin:top;
  transition:opacity .24s var(--ease),transform .24s var(--ease);
}
.faq-item.open::before{opacity:1;transform:scaleY(1)}
.faq-q{
  width:100%;text-align:left;background:transparent;border:0;
  padding:22px 44px 22px 0;color:var(--text);
  font-size:17px;font-weight:600;cursor:pointer;position:relative;
  transition:color .2s var(--ease);
}
.faq-q:hover{color:var(--accent)}
.faq-q .ic{
  position:absolute;right:6px;top:50%;transform:translateY(-50%);
  width:26px;height:26px;border-radius:50%;
  display:grid;place-items:center;
  border:1px solid var(--line);color:var(--muted);font-size:11px;
  transition:all .24s var(--ease);
}
.faq-item.open .faq-q .ic{color:var(--accent);border-color:rgba(61,240,168,.5);transform:translateY(-50%) rotate(180deg)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .32s var(--ease)}
.faq-a p{color:var(--muted);font-size:15px;padding:0 60px 24px 0}
.faq-item.open .faq-a{max-height:280px}

/* ---------- CTA ---------- */
.cta-band{
  border-radius:var(--r-xl);
  padding:44px;
  background:linear-gradient(120deg,rgba(27,84,255,.24),rgba(61,240,168,.09) 70%,rgba(18,26,44,.6));
  border:1px solid rgba(61,240,168,.22);
  backdrop-filter:blur(14px);
  display:flex;align-items:center;justify-content:space-between;gap:32px;flex-wrap:wrap;
  position:relative;overflow:hidden;
}
.cta-band::after{
  content:"";position:absolute;right:-80px;top:-90px;width:300px;height:300px;border-radius:50%;
  border:1px solid rgba(61,240,168,.2);
  pointer-events:none;
}
.cta-band h2{font-size:clamp(22px,2.4vw,30px)}
.cta-band p{color:var(--muted);font-size:15px;margin-top:10px;max-width:600px}
.cta-actions{display:flex;gap:14px;flex-wrap:wrap}

/* ---------- 页脚 ---------- */
.site-footer{
  margin-top:88px;
  border-top:1px solid var(--line);
  background:rgba(8,12,22,.9);
  position:relative;
  z-index:1;
}
.site-footer::before{
  content:"";
  position:absolute;left:0;right:0;top:0;height:1px;
  background:linear-gradient(90deg,transparent,rgba(27,84,255,.7),rgba(61,240,168,.7),transparent);
}
.footer-grid{
  display:grid;
  grid-template-columns:1.5fr 1fr 1fr 1.2fr;
  gap:36px;
  padding:64px 0 44px;
}
.footer-brand{display:flex;align-items:center;gap:12px;margin-bottom:16px}
.footer-about{font-size:14px;color:var(--muted);line-height:1.85;max-width:340px}
.footer-col h4{font-size:15px;margin-bottom:18px;color:var(--text)}
.footer-links li+li{margin-top:12px}
.footer-links a{font-size:14px;color:var(--muted)}
.footer-links a:hover{color:var(--accent)}
.footer-contact li{display:flex;gap:10px;font-size:14px;color:var(--muted);margin-bottom:14px;line-height:1.7}
.footer-contact i{color:var(--accent);margin-top:6px;font-size:13px}
.footer-bottom{
  border-top:1px solid var(--line);
  padding:20px 0 28px;
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13px;color:var(--weak);
}
.to-top{
  display:inline-flex;align-items:center;gap:8px;
  height:38px;padding:0 18px;border-radius:999px;
  background:transparent;border:1px solid var(--line);color:var(--muted);
  font-size:13px;cursor:pointer;
  transition:all .22s var(--ease);
}
.to-top:hover{color:var(--accent);border-color:rgba(61,240,168,.5);transform:translateY(-2px)}

/* ---------- 响应式 ---------- */
@media (max-width:1399px){
  .container{max-width:1140px}
}
@media (max-width:1199px){
  .grid-cards{grid-template-columns:repeat(2,minmax(0,1fr))}
  .card-wide{grid-column:span 2;flex-direction:column}
  .card-wide .card-cover{width:100%;aspect-ratio:16/9;min-height:auto}
  .card-wide .card-cover::after{background:linear-gradient(180deg,rgba(6,10,20,.1),rgba(6,10,20,.72))}
  .footer-grid{grid-template-columns:1.4fr 1fr 1fr;gap:30px}
  .footer-col:nth-child(4){grid-column:span 3}
  .footer-contact{display:flex;flex-wrap:wrap;gap:24px}
  .footer-contact li{margin-bottom:0}
}
@media (max-width:991px){
  .section{padding:64px 0}
  .nav-toggle{display:inline-grid;place-items:center}
  .nav-menu{
    position:fixed;
    top:calc(var(--nav-h) + 34px);
    right:0;
    width:min(300px,86vw);
    height:calc(100vh - var(--nav-h) - 34px);
    background:rgba(10,15,28,.98);
    backdrop-filter:blur(18px);
    border-left:1px solid var(--line);
    padding:22px 18px;
    transform:translateX(102%);
    transition:transform .28s var(--ease);
    overflow-y:auto;
    display:block;
  }
  .nav-menu.open{transform:translateX(0)}
  .nav-list{flex-direction:column;align-items:stretch;gap:6px}
  .nav-link{padding:14px 16px;border-radius:12px;font-size:16px;background:rgba(18,26,44,.6);border:1px solid var(--line)}
  .nav-link.active::after{display:none}
  .nav-link.active{background:rgba(27,84,255,.22);border-color:rgba(61,240,168,.4);color:#fff}
  .mega-panel{
    position:fixed;left:18px;right:18px;top:auto;bottom:18px;
    width:auto;grid-template-columns:1fr;max-height:70vh;overflow-y:auto;
  }
  .cat-switch{top:var(--nav-h)}
  .cat-switch-inner{padding:12px 24px}
  .points-list{grid-template-columns:1fr;gap:0}
  .point-item:nth-child(2){border-top:1px solid var(--line)}
  .cta-band{padding:34px}
  .footer-grid{grid-template-columns:1fr 1fr;padding:52px 0 36px}
  .footer-col:nth-child(4){grid-column:span 2}
  .footer-col:nth-child(1){grid-column:span 2}
}
@media (max-width:767px){
  .container{padding:0 18px}
  .section{padding:48px 0}
  .topbar-meta{display:none}
  .cat-hero{min-height:auto}
  .hero-inner{padding:44px 0 40px}
  .hero-sub{font-size:15px}
  .hero-actions{gap:10px}
  .btn-main,.btn-line{height:44px;padding:0 20px;font-size:14px}
  .btn-lg{height:50px;padding:0 24px}
  .btn-main{flex:1 1 auto}
  .hero-stats{gap:10px;padding:14px 16px}
  .stat-item{min-width:90px}
  .stat-item .v{font-size:19px}
  .grid-cards{grid-template-columns:1fr;gap:18px}
  .card-wide{grid-column:span 1}
  .points-panel{padding:26px 20px}
  .track::before{left:20px}
  .track-idx{flex:0 0 44px;height:44px;border-radius:14px;font-size:14px}
  .faq-q{font-size:16px;padding-right:40px}
  .faq-a p{padding-right:20px}
  .cta-band{padding:28px 22px;gap:22px}
  .cta-actions{width:100%}
  .cta-actions .btn-main,.cta-actions .btn-line{flex:1 1 100%}
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .footer-col:nth-child(1),.footer-col:nth-child(4){grid-column:span 1}
  .footer-bottom{flex-direction:column;align-items:flex-start}
  .mega-panel{left:12px;right:12px;padding:18px}
}
@media (max-width:480px){
  .brand-text{font-size:17px}
  .brand-mark{width:36px;height:36px}
  .cat-hero h1{font-size:26px}
  .card-body{padding:16px 18px 18px}
  .card-body h3{font-size:17px}
  .section-head h2{font-size:22px}
}

/* roulang page: category2 */
:root{
  --bg:#060A14;
  --panel:#0E1526;
  --glass:rgba(18,26,44,.62);
  --primary:#1B54FF;
  --cyan:#3DF0A8;
  --orange:#FF7A29;
  --text:#E8EEF9;
  --text-2:#9AA9C4;
  --text-3:#64748B;
  --line:rgba(120,160,255,.14);
  --r-lg:22px;
  --r-md:16px;
  --r-sm:12px;
  --shadow:0 1px 0 rgba(255,255,255,.04), 0 10px 30px rgba(0,0,0,.45);
  --glow:0 0 0 1px rgba(61,240,168,.35), 0 8px 28px rgba(27,84,255,.45);
  --sp:88px;
  --nav-h:72px;
}
*{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:1.8;
  -webkit-font-smoothing:antialiased;
}
body::before{
  content:"";
  position:fixed;
  inset:0;
  pointer-events:none;
  z-index:0;
  background-image:linear-gradient(rgba(120,160,255,.05) 1px,transparent 1px),linear-gradient(90deg,rgba(120,160,255,.05) 1px,transparent 1px);
  background-size:56px 56px;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none;transition:color .22s ease-out}
a:hover{color:var(--cyan)}
h1,h2,h3,h4{margin:0;font-weight:700;color:var(--text);line-height:1.3}
p{margin:0 0 18px}
p:last-child{margin-bottom:0}
ul{margin:0;padding:0;list-style:none}
button{font-family:inherit}
:focus-visible{outline:2px solid var(--cyan);outline-offset:2px;border-radius:6px}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 20px;position:relative;z-index:1}
.num{font-variant-numeric:tabular-nums;font-feature-settings:"tnum"}

/* 顶部信息条 */
.topbar{
  height:34px;
  background:#080D1B;
  border-bottom:1px solid var(--line);
  font-size:13px;
  color:var(--text-3);
  position:relative;
  z-index:5;
}
.topbar .container{display:flex;align-items:center;justify-content:space-between;height:34px;gap:16px}
.topbar-left{display:flex;align-items:center;gap:8px;color:var(--text-2);overflow:hidden;white-space:nowrap}
.topbar-left i{color:var(--cyan)}
.topbar-right{display:flex;align-items:center;gap:18px;white-space:nowrap}
.topbar-right span{display:inline-flex;align-items:center;gap:6px}

/* 导航 */
.mainnav{
  position:sticky;
  top:0;
  z-index:50;
  background:rgba(6,10,20,.86);
  backdrop-filter:blur(14px);
  border-bottom:1px solid var(--line);
}
.nav-inner{display:flex;align-items:center;justify-content:space-between;gap:22px;height:var(--nav-h)}
.brand{display:inline-flex;align-items:center;gap:12px;flex:0 0 auto}
.brand-mark{
  width:38px;height:38px;border-radius:12px;
  display:inline-flex;align-items:center;justify-content:center;
  background:linear-gradient(140deg,rgba(27,84,255,.9),rgba(61,240,168,.7));
  color:#04070F;font-size:17px;
  box-shadow:0 8px 24px rgba(27,84,255,.35);
}
.brand-text{font-size:19px;font-weight:700;letter-spacing:.5px;color:var(--text)}
.brand-text em{font-style:normal;color:var(--cyan)}
.nav-menu{flex:1 1 auto;display:flex;justify-content:center}
.nav-list{display:flex;align-items:center;gap:6px}
.nav-link{
  display:inline-flex;align-items:center;height:40px;padding:0 14px;
  border-radius:999px;font-size:15px;color:var(--text-2);position:relative;
}
.nav-link:hover{color:var(--text);background:rgba(120,160,255,.08)}
.nav-link.active{color:var(--text)}
.nav-link.active::after{
  content:"";position:absolute;left:14px;right:14px;bottom:2px;height:2px;border-radius:2px;
  background:linear-gradient(90deg,var(--primary),var(--cyan));
}
.nav-right{display:flex;align-items:center;gap:12px;flex:0 0 auto}
.mega-wrap{position:relative}
.mega-trigger{
  display:inline-flex;align-items:center;gap:8px;
  height:42px;padding:0 18px;border-radius:999px;
  background:var(--glass);border:1px solid var(--line);color:var(--text-2);
  font-size:14px;cursor:pointer;transition:all .22s ease-out;
}
.mega-trigger:hover,.mega-trigger[aria-expanded="true"]{color:var(--text);border-color:rgba(61,240,168,.4)}
.mega-trigger i{transition:transform .24s ease-out;font-size:12px}
.mega-trigger[aria-expanded="true"] i{transform:rotate(180deg)}
.mega-panel{
  position:absolute;right:0;top:calc(100% + 14px);
  width:680px;padding:24px;
  display:grid;grid-template-columns:1fr 1.2fr 1fr;gap:22px;
  background:rgba(14,21,38,.94);backdrop-filter:blur(18px);
  border:1px solid var(--line);border-radius:var(--r-lg);
  box-shadow:0 24px 60px rgba(0,0,0,.55);
  opacity:0;visibility:hidden;transform:translateY(8px);
  transition:opacity .24s ease-out,transform .24s ease-out,visibility .24s;
}
.mega-panel::before{
  content:"";position:absolute;left:16px;right:16px;top:0;height:1px;
  background:linear-gradient(90deg,transparent,var(--cyan),transparent);
}
.mega-panel.show{opacity:1;visibility:visible;transform:translateY(0)}
.mega-col-title{font-size:12px;letter-spacing:1px;color:var(--text-3);margin-bottom:12px;text-transform:uppercase}
.mega-links li a{
  display:flex;align-items:center;justify-content:space-between;
  padding:9px 10px;border-radius:10px;font-size:14px;color:var(--text-2);
}
.mega-links li a:hover{background:rgba(27,84,255,.14);color:var(--text)}
.mega-links li a i{font-size:11px;opacity:.6}
.mega-post{display:block;padding:12px;border-radius:12px;background:rgba(120,160,255,.05);margin-bottom:10px;border:1px solid transparent}
.mega-post:hover{border-color:rgba(61,240,168,.3);background:rgba(27,84,255,.1)}
.mega-post strong{display:block;font-size:14px;font-weight:600;color:var(--text);line-height:1.5;margin-bottom:4px}
.mega-post span{font-size:12px;color:var(--text-3)}
.mega-entry{
  display:block;padding:16px;border-radius:14px;
  background:linear-gradient(160deg,rgba(27,84,255,.22),rgba(61,240,168,.08));
  border:1px solid rgba(61,240,168,.22);
}
.mega-entry i{font-size:20px;color:var(--cyan);margin-bottom:10px;display:block}
.mega-entry strong{display:block;font-size:14px;margin-bottom:6px}
.mega-entry span{font-size:12px;color:var(--text-2);line-height:1.6}
.nav-toggle{
  display:none;width:44px;height:44px;border-radius:12px;
  background:var(--glass);border:1px solid var(--line);color:var(--text);
  font-size:17px;cursor:pointer;
}

/* 通用按钮 */
.btn-main,.btn-ghost,.btn-line{
  display:inline-flex;align-items:center;justify-content:center;gap:9px;
  height:46px;padding:0 26px;border-radius:999px;font-size:15px;font-weight:600;
  cursor:pointer;border:1px solid transparent;transition:all .22s ease-out;white-space:nowrap;
}
.btn-main{background:var(--primary);color:#fff;box-shadow:var(--glow)}
.btn-main:hover{color:#fff;transform:translateY(-2px);box-shadow:0 0 0 1px rgba(61,240,168,.5),0 14px 34px rgba(27,84,255,.55)}
.btn-line{border-color:rgba(27,84,255,.6);color:var(--text);background:transparent}
.btn-line:hover{border-color:var(--cyan);color:var(--cyan);transform:translateY(-2px)}
.btn-ghost{color:var(--text-2);background:transparent;padding:0 8px}
.btn-ghost:hover{color:var(--cyan);gap:14px}
.btn-lg{height:54px;padding:0 32px;font-size:16px}

/* 分类页 Hero */
.cat-hero{
  position:relative;
  min-height:320px;
  display:flex;align-items:center;
  padding:56px 0;
  overflow:hidden;
  border-bottom:1px solid var(--line);
}
.cat-hero .hero-bg{
  position:absolute;inset:0;
  background-image:url("/assets/images/backpic/back-2.png");
  background-size:cover;background-position:center;
  filter:saturate(1.05);
}
.cat-hero .hero-mask{
  position:absolute;inset:0;
  background:linear-gradient(90deg,rgba(6,10,20,.95) 0%,rgba(6,10,20,.78) 46%,rgba(6,10,20,.5) 100%);
}
.cat-hero .hero-arc{
  position:absolute;right:-80px;bottom:-120px;width:620px;height:620px;
  border-radius:50%;border:1px solid rgba(61,240,168,.18);
  box-shadow:inset 0 0 120px rgba(27,84,255,.18);
  pointer-events:none;
}
.hero-body{position:relative;z-index:2;max-width:760px}
.crumb{font-size:13px;color:var(--text-3);margin-bottom:16px;display:flex;gap:8px;align-items:center}
.crumb a:hover{color:var(--cyan)}
.crumb span{color:var(--text-2)}
.cat-hero h1{font-size:clamp(28px,4vw,48px);line-height:1.25;margin-bottom:16px}
.cat-hero h1 em{font-style:normal;color:var(--cyan)}
.hero-lead{font-size:17px;color:var(--text-2);max-width:620px;margin-bottom:26px}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:28px}
.hero-stats{display:flex;flex-wrap:wrap;gap:14px}
.stat-chip{
  display:flex;flex-direction:column;gap:2px;
  padding:12px 20px;border-radius:14px;
  background:var(--glass);border:1px solid var(--line);
}
.stat-chip b{font-size:20px;color:var(--cyan);font-weight:700}
.stat-chip span{font-size:12px;color:var(--text-3)}

/* 分类互链 */
.cat-tabs{
  position:sticky;top:var(--nav-h);z-index:40;
  background:rgba(6,10,20,.92);
  backdrop-filter:blur(12px);
  border-bottom:1px solid var(--line);
  padding:14px 0;
}
.cat-tabs ul{display:flex;gap:12px;overflow-x:auto;scrollbar-width:none;-ms-overflow-style:none}
.cat-tabs ul::-webkit-scrollbar{display:none}
.cat-tabs a{
  display:inline-flex;align-items:center;gap:8px;
  padding:9px 20px;border-radius:999px;font-size:14px;white-space:nowrap;
  background:rgba(120,160,255,.06);border:1px solid var(--line);color:var(--text-2);
  transition:all .22s ease-out;
}
.cat-tabs a:hover{color:var(--text);border-color:rgba(61,240,168,.4)}
.cat-tabs a.current{background:var(--primary);border-color:transparent;color:#fff;box-shadow:0 8px 22px rgba(27,84,255,.4)}

/* 板块 */
section.block{padding:var(--sp) 0;position:relative}
.block-head{display:flex;flex-wrap:wrap;align-items:flex-end;justify-content:space-between;gap:16px;margin-bottom:28px}
.block-head h2{font-size:clamp(22px,2.6vw,32px)}
.block-head p{margin:10px 0 0;color:var(--text-2);font-size:15px;max-width:660px}
.block-head .more{font-size:14px;color:var(--text-2);display:inline-flex;align-items:center;gap:8px}
.block-head .more:hover{color:var(--cyan);gap:12px}

/* 条目网格（2 列，首张横跨） */
.entry-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:24px}
.entry-card{
  display:flex;flex-direction:column;
  background:var(--panel);border:1px solid var(--line);border-radius:var(--r-md);
  overflow:hidden;box-shadow:var(--shadow);
  transition:transform .24s ease-out,border-color .24s ease-out,box-shadow .24s ease-out;
}
.entry-card:hover{transform:translateY(-4px);border-color:rgba(61,240,168,.35);box-shadow:0 18px 40px rgba(0,0,0,.5)}
.entry-card .thumb{position:relative;aspect-ratio:16/9;overflow:hidden;background:#0A101F}
.entry-card .thumb img{width:100%;height:100%;object-fit:cover;transition:transform .3s ease-out}
.entry-card:hover .thumb img{transform:scale(1.03)}
.badge-cat{
  position:absolute;left:14px;top:14px;
  padding:4px 12px;border-radius:999px;font-size:12px;
  background:rgba(18,26,44,.72);border:1px solid rgba(61,240,168,.35);
  color:var(--cyan);backdrop-filter:blur(6px);
}
.entry-card .body{padding:20px 22px 22px;display:flex;flex-direction:column;gap:10px;flex:1}
.entry-card h3{font-size:18px;line-height:1.5;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.entry-card 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;margin:0}
.card-foot{
  display:flex;align-items:center;justify-content:space-between;
  margin-top:auto;padding-top:14px;border-top:1px solid var(--line);
  font-size:13px;color:var(--text-3);
}
.card-foot .go{display:inline-flex;align-items:center;gap:7px;color:var(--text-2)}
.entry-card:hover .card-foot .go{color:var(--cyan);gap:11px}
.entry-card.wide{grid-column:1/-1;flex-direction:row}
.entry-card.wide .thumb{flex:0 0 52%;aspect-ratio:auto;min-height:280px}
.entry-card.wide .body{padding:28px 30px;justify-content:center}
.entry-card.wide h3{font-size:22px;-webkit-line-clamp:3}
.entry-card.wide p{-webkit-line-clamp:3;font-size:15px}
.tag-row{display:flex;flex-wrap:wrap;gap:8px;margin-top:2px}
.tag{
  padding:4px 12px;border-radius:999px;font-size:12px;
  background:rgba(120,160,255,.08);border:1px solid var(--line);color:var(--text-2);
}

/* 要点清单 */
.check-panel{
  background:linear-gradient(160deg,rgba(27,84,255,.12),rgba(14,21,38,.6));
  border:1px solid var(--line);border-radius:var(--r-lg);
  padding:36px 34px;
}
.check-panel h2{font-size:clamp(21px,2.4vw,28px);margin-bottom:10px}
.check-panel .sub{color:var(--text-2);font-size:15px;margin-bottom:26px}
.check-list{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:0 34px}
.check-item{display:flex;gap:16px;padding:18px 0;border-top:1px solid var(--line);align-items:flex-start}
.check-item .no{font-size:15px;font-weight:700;color:var(--cyan);flex:0 0 auto;padding-top:2px}
.check-item strong{display:block;font-size:16px;font-weight:600;margin-bottom:4px}
.check-item span{font-size:13px;color:var(--text-3)}

/* FAQ */
.faq-wrap{max-width:900px;margin:0 auto}
.faq-item{border-bottom:1px solid var(--line)}
.faq-item summary{
  list-style:none;cursor:pointer;display:flex;align-items:center;justify-content:space-between;gap:18px;
  padding:20px 0 20px 0;font-size:16px;font-weight:600;color:var(--text);
  position:relative;transition:color .22s ease-out;
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::before{
  content:"";position:absolute;left:-16px;top:18px;bottom:18px;width:3px;border-radius:2px;
  background:var(--cyan);opacity:0;transition:opacity .22s ease-out;
}
.faq-item[open] summary::before{opacity:1}
.faq-item summary:hover{color:var(--cyan)}
.faq-item summary i{font-size:13px;color:var(--text-3);transition:transform .24s ease-out}
.faq-item[open] summary i{transform:rotate(180deg);color:var(--cyan)}
.faq-answer{padding:0 0 22px;color:var(--text-2);font-size:15px;line-height:1.85}

/* CTA 带 */
.cta-band{
  background:var(--glass);border:1px solid var(--line);border-radius:var(--r-lg);
  padding:34px 36px;display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:24px;
  box-shadow:var(--shadow);position:relative;overflow:hidden;
}
.cta-band::after{
  content:"";position:absolute;right:-60px;top:-70px;width:280px;height:280px;border-radius:50%;
  border:1px solid rgba(61,240,168,.18);pointer-events:none;
}
.cta-band h3{font-size:clamp(20px,2.2vw,26px);margin-bottom:8px}
.cta-band p{color:var(--text-2);font-size:15px;margin:0}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px}

/* 相关推荐横排 */
.rec-row{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:22px}
.rec-card{
  display:flex;gap:14px;align-items:flex-start;
  padding:18px;border-radius:var(--r-md);
  background:var(--panel);border:1px solid var(--line);
  transition:all .22s ease-out;
}
.rec-card:hover{transform:translateY(-4px);border-color:rgba(61,240,168,.32)}
.rec-card img{width:76px;height:76px;border-radius:12px;object-fit:cover;flex:0 0 auto}
.rec-card strong{display:block;font-size:15px;line-height:1.6;margin-bottom:6px}
.rec-card span{font-size:12px;color:var(--text-3)}

/* 页脚 */
.site-footer{
  position:relative;margin-top:var(--sp);
  background:#080D1B;border-top:1px solid var(--line);padding:60px 0 0;
}
.site-footer::before{
  content:"";position:absolute;left:0;right:0;top:-1px;height:1px;
  background:linear-gradient(90deg,transparent,rgba(61,240,168,.55),transparent);
}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:34px;padding-bottom:44px}
.footer-brand{display:flex;align-items:center;gap:12px;margin-bottom:16px}
.footer-about{font-size:14px;color:var(--text-3);line-height:1.85;max-width:330px}
.site-footer h4{font-size:15px;margin-bottom:16px;color:var(--text)}
.footer-links li{margin-bottom:11px}
.footer-links a{font-size:14px;color:var(--text-2)}
.footer-links a:hover{color:var(--cyan);padding-left:4px}
.footer-contact li{display:flex;gap:10px;font-size:14px;color:var(--text-2);margin-bottom:13px;line-height:1.7}
.footer-contact i{color:var(--cyan);margin-top:6px;font-size:13px;flex:0 0 auto}
.footer-bottom{
  border-top:1px solid var(--line);padding:20px 0;
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:14px;
}
.footer-bottom p{margin:0;font-size:13px;color:var(--text-3)}
.to-top{
  display:inline-flex;align-items:center;gap:8px;
  height:38px;padding:0 18px;border-radius:999px;
  background:rgba(120,160,255,.08);border:1px solid var(--line);
  color:var(--text-2);font-size:13px;cursor:pointer;transition:all .22s ease-out;
}
.to-top:hover{color:var(--cyan);border-color:rgba(61,240,168,.4);transform:translateY(-2px)}

/* 响应式 */
@media (max-width:1199px){
  :root{--sp:72px}
  .mega-panel{width:600px;grid-template-columns:1fr 1fr;gap:18px}
  .mega-panel .mega-col:last-child{grid-column:1/-1}
}
@media (max-width:991px){
  :root{--sp:64px;--nav-h:66px}
  .nav-toggle{display:inline-flex;align-items:center;justify-content:center}
  .nav-menu{
    position:absolute;left:0;right:0;top:var(--nav-h);
    background:rgba(8,13,27,.98);backdrop-filter:blur(16px);
    border-bottom:1px solid var(--line);
    padding:14px 20px 22px;
    display:none;
  }
  .nav-menu.open{display:block}
  .nav-list{flex-direction:column;align-items:stretch;gap:4px}
  .nav-link{height:46px;border-radius:12px;padding:0 14px;font-size:15px}
  .nav-link.active{background:rgba(27,84,255,.18);color:var(--text)}
  .nav-link.active::after{display:none}
  .mega-panel{
    position:static;width:100%;grid-template-columns:1fr;gap:16px;
    margin-top:12px;display:none;opacity:1;visibility:visible;transform:none;
    box-shadow:none;background:rgba(14,21,38,.9);
  }
  .mega-panel.show{display:grid}
  .entry-grid{grid-template-columns:1fr}
  .entry-card.wide{flex-direction:column}
  .entry-card.wide .thumb{flex:none;aspect-ratio:16/9;min-height:0}
  .entry-card.wide .body{padding:22px}
  .check-list{grid-template-columns:1fr}
  .rec-row{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr 1fr;gap:26px}
  .cta-band{padding:26px 24px}
}
@media (max-width:767px){
  :root{--sp:48px}
  body{font-size:15px}
  .topbar{display:none}
  .cat-hero{min-height:0;padding:40px 0}
  .cat-hero .hero-arc{display:none}
  .hero-lead{font-size:15px}
  .hero-actions .btn-main,.hero-actions .btn-line{width:100%}
  .cat-tabs{top:0}
  .cat-tabs a{padding:8px 16px;font-size:13px}
  .check-panel{padding:24px 20px}
  .entry-card .body{padding:18px}
  .entry-card.wide h3{font-size:19px}
  .footer-grid{grid-template-columns:1fr;gap:24px}
  .footer-about{max-width:none}
  .rec-card img{width:64px;height:64px}
}
@media (max-width:479px){
  .cat-hero h1{font-size:26px}
  .stat-chip{padding:10px 14px}
  .stat-chip b{font-size:17px}
  .cta-band{padding:22px 18px}
  .cta-actions{width:100%}
  .cta-actions .btn-main,.cta-actions .btn-line{width:100%}
}

/* roulang page: category3 */
:root{
  --bg:#060A14;
  --panel:#0E1526;
  --glass:rgba(18,26,44,.62);
  --primary:#1B54FF;
  --primary-deep:#143FC4;
  --cyan:#3DF0A8;
  --orange:#FF7A29;
  --text:#E8EEF9;
  --text-2:#9AA9C4;
  --text-3:#64748B;
  --line:rgba(120,160,255,.14);
  --line-strong:rgba(120,160,255,.3);
  --r-lg:22px;
  --r-md:16px;
  --r-sm:12px;
  --shadow-card:inset 0 1px 0 rgba(255,255,255,.04), 0 10px 30px rgba(0,0,0,.45);
  --shadow-glow:0 0 0 1px rgba(61,240,168,.35), 0 8px 28px rgba(27,84,255,.45);
  --nav-h:68px;
  --sp:88px;
}
*{box-sizing:border-box;}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%;}
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:1.8;
  -webkit-font-smoothing:antialiased;
}
body::before{
  content:"";
  position:fixed;
  inset:0;
  z-index:-1;
  background-image:
    linear-gradient(rgba(120,160,255,.05) 1px, transparent 1px),
    linear-gradient(90deg, rgba(120,160,255,.05) 1px, transparent 1px);
  background-size:64px 64px;
  pointer-events:none;
}
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;transition:color .2s ease-out, background-color .2s ease-out, border-color .2s ease-out;}
a:hover{color:var(--cyan);}
button{font-family:inherit;}
h1,h2,h3,h4{margin:0;line-height:1.3;font-weight:700;letter-spacing:.2px;}
p{margin:0 0 18px;}
p:last-child{margin-bottom:0;}
ul{margin:0;padding:0;list-style:none;}
:focus-visible{outline:2px solid var(--cyan);outline-offset:2px;}
.container{
  width:100%;
  max-width:1200px;
  margin:0 auto;
  padding:0 24px;
}
.section{padding:var(--sp) 0;}
.section-head{margin-bottom:28px;max-width:760px;}
.section-title{font-size:clamp(24px,2.6vw,34px);}
.section-desc{color:var(--text-2);font-size:15px;margin-top:12px;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12px;letter-spacing:2px;color:var(--cyan);
  text-transform:uppercase;margin-bottom:14px;
}
.eyebrow::before{content:"";width:22px;height:2px;background:var(--cyan);border-radius:2px;}

/* ---------- 导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:1000;
  background:rgba(6,10,20,.86);
  backdrop-filter:blur(14px);
  border-bottom:1px solid var(--line);
}
.nav-inner{display:flex;align-items:center;gap:28px;height:var(--nav-h);}
.brand{display:inline-flex;align-items:center;gap:10px;flex-shrink:0;}
.brand-mark{
  width:34px;height:34px;border-radius:11px;
  display:inline-flex;align-items:center;justify-content:center;
  background:linear-gradient(140deg,var(--primary),#0C2A8A);
  color:#fff;font-size:15px;
  box-shadow:0 6px 18px rgba(27,84,255,.45);
}
.brand-text{font-size:19px;font-weight:700;color:var(--text);letter-spacing:.5px;}
.brand-text em{font-style:normal;color:var(--cyan);}
.nav-menu{flex:1;}
.nav-list{display:flex;align-items:center;gap:4px;}
.nav-link{
  position:relative;display:block;
  padding:10px 14px;border-radius:10px;
  color:var(--text-2);font-size:15px;
}
.nav-link:hover{color:var(--text);background:rgba(27,84,255,.12);}
.nav-link.active{color:var(--text);font-weight:600;}
.nav-link.active::after{
  content:"";position:absolute;left:14px;right:14px;bottom:3px;height:2px;
  background:var(--cyan);border-radius:2px;box-shadow:0 0 10px rgba(61,240,168,.8);
}
.nav-right{display:flex;align-items:center;gap:12px;}
.mega-wrap{position:relative;}
.mega-trigger{
  display:inline-flex;align-items:center;gap:8px;
  height:40px;padding:0 18px;border-radius:999px;
  background:transparent;border:1px solid var(--line-strong);
  color:var(--text);font-size:14px;cursor:pointer;
  transition:all .22s ease-out;
}
.mega-trigger:hover{border-color:var(--cyan);color:var(--cyan);background:rgba(61,240,168,.06);}
.mega-trigger i{font-size:11px;transition:transform .22s ease-out;}
.mega-wrap.open .mega-trigger i,
.mega-wrap:hover .mega-trigger i{transform:rotate(180deg);}
.mega-panel{
  position:absolute;right:0;top:calc(100% + 14px);
  width:740px;padding:24px;
  display:grid;grid-template-columns:1fr 1.15fr 1fr;gap:22px;
  background:var(--glass);
  backdrop-filter:blur(18px);
  border:1px solid var(--line-strong);
  border-radius:18px;
  box-shadow:0 24px 60px rgba(0,0,0,.55);
  opacity:0;visibility:hidden;transform:translateY(8px);
  transition:opacity .22s ease-out, transform .22s ease-out, visibility .22s;
}
.mega-panel::before{
  content:"";position:absolute;left:20px;right:20px;top:0;height:1px;
  background:linear-gradient(90deg,transparent,rgba(61,240,168,.9),transparent);
}
.mega-wrap:hover .mega-panel,
.mega-wrap.open .mega-panel{opacity:1;visibility:visible;transform:translateY(0);}
.mega-col-title{font-size:13px;color:var(--text-3);letter-spacing:1px;margin-bottom:14px;}
.mega-links li + li{margin-top:8px;}
.mega-links a{
  display:flex;align-items:center;justify-content:space-between;
  font-size:14px;color:var(--text-2);padding:7px 0;
  border-bottom:1px solid rgba(120,160,255,.08);
}
.mega-links a:hover{color:var(--cyan);}
.mega-links a i{font-size:11px;opacity:.6;}
.mega-post{display:block;padding:12px 14px;border-radius:12px;border:1px solid var(--line);margin-bottom:10px;transition:all .22s ease-out;}
.mega-post:hover{border-color:rgba(61,240,168,.4);background:rgba(27,84,255,.09);}
.mega-post strong{display:block;font-size:14px;font-weight:600;color:var(--text);line-height:1.5;}
.mega-post span{display:block;font-size:12px;color:var(--text-3);margin-top:5px;}
.mega-entry{
  display:grid;grid-template-columns:auto 1fr auto;align-items:center;gap:12px;
  padding:16px;border-radius:14px;
  background:linear-gradient(120deg,rgba(27,84,255,.22),rgba(61,240,168,.08));
  border:1px solid var(--line-strong);
}
.mega-entry i:first-child{font-size:18px;color:var(--cyan);}
.mega-entry strong{font-size:14px;display:block;}
.mega-entry span{font-size:12px;color:var(--text-2);display:block;margin-top:3px;}
.mega-entry:hover{border-color:var(--cyan);}
.nav-toggle{
  display:none;width:42px;height:42px;border-radius:12px;
  background:transparent;border:1px solid var(--line-strong);
  color:var(--text);font-size:16px;cursor:pointer;
}

/* ---------- 内页 Hero ---------- */
.page-hero{position:relative;overflow:hidden;border-bottom:1px solid var(--line);}
.hero-bg{
  position:absolute;inset:0;
  background:url('/assets/images/backpic/back-3.png') center/cover no-repeat;
  filter:saturate(.85);
}
.hero-mask{
  position:absolute;inset:0;
  background:linear-gradient(100deg,rgba(6,10,20,.96) 0%,rgba(6,10,20,.8) 46%,rgba(6,10,20,.52) 100%);
}
.hero-arc{
  position:absolute;right:-160px;top:-120px;width:580px;height:580px;
  border-radius:50%;border:1px solid rgba(61,240,168,.22);
  box-shadow:inset 0 0 70px rgba(27,84,255,.2);
  pointer-events:none;
}
.hero-arc::after{
  content:"";position:absolute;inset:74px;border-radius:50%;
  border:1px dashed rgba(120,160,255,.18);
}
.hero-inner{position:relative;z-index:2;padding:58px 24px 54px;max-width:1200px;margin:0 auto;}
.crumb{font-size:13px;color:var(--text-3);margin-bottom:20px;}
.crumb a{color:var(--text-3);}
.crumb a:hover{color:var(--cyan);}
.crumb span{margin:0 8px;opacity:.5;}
.tag-pill{
  display:inline-block;font-size:12px;padding:5px 12px;border-radius:999px;
  background:rgba(16,24,42,.7);border:1px solid rgba(61,240,168,.35);
  color:var(--cyan);letter-spacing:1px;
}
.page-hero h1{
  font-size:clamp(30px,4.2vw,52px);
  margin:18px 0 16px;line-height:1.25;
}
.hero-sub{max-width:620px;color:var(--text-2);font-size:16px;}
.hero-stats{display:flex;flex-wrap:wrap;gap:12px;margin-top:30px;}
.stat{
  min-width:150px;padding:13px 18px;border-radius:14px;
  background:var(--glass);border:1px solid var(--line);
  backdrop-filter:blur(10px);
}
.stat b{
  display:block;font-size:22px;color:var(--cyan);
  font-variant-numeric:tabular-nums;letter-spacing:.5px;
}
.stat span{display:block;font-size:12px;color:var(--text-3);margin-top:2px;}

/* ---------- 分类互链 ---------- */
.cat-strip{
  position:sticky;top:var(--nav-h);z-index:900;
  background:rgba(6,10,20,.92);
  backdrop-filter:blur(12px);
  border-bottom:1px solid var(--line);
}
.cat-strip-inner{display:flex;gap:10px;padding:13px 0;overflow-x:auto;scrollbar-width:none;}
.cat-strip-inner::-webkit-scrollbar{display:none;}
.cat-pill{
  flex:0 0 auto;padding:9px 18px;border-radius:999px;
  border:1px solid var(--line-strong);color:var(--text-2);font-size:14px;
  white-space:nowrap;transition:all .22s ease-out;
}
.cat-pill:hover{color:var(--text);border-color:var(--cyan);background:rgba(61,240,168,.06);}
.cat-pill.active{
  background:var(--primary);border-color:var(--primary);color:#fff;
  box-shadow:0 8px 24px rgba(27,84,255,.42);
}

/* ---------- 榜单卡片网格 ---------- */
.board-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;}
.board-card{
  display:flex;flex-direction:column;
  background:var(--panel);border:1px solid var(--line);
  border-radius:var(--r-md);overflow:hidden;
  box-shadow:var(--shadow-card);
  transition:transform .24s ease-out, border-color .24s ease-out, box-shadow .24s ease-out;
}
.board-card:hover{
  transform:translateY(-4px);
  border-color:rgba(61,240,168,.45);
  box-shadow:0 16px 40px rgba(0,0,0,.5);
}
.board-card.wide{grid-column:span 2;flex-direction:row;}
.board-card.wide .cover{width:52%;aspect-ratio:auto;min-height:250px;}
.cover{position:relative;aspect-ratio:16/10;overflow:hidden;background:#0A1120;}
.cover img{width:100%;height:100%;object-fit:cover;transition:transform .5s ease-out;}
.board-card:hover .cover img{transform:scale(1.03);}
.cover .tag-pill{position:absolute;top:12px;left:12px;background:rgba(8,13,26,.75);backdrop-filter:blur(6px);}
.card-body{padding:22px;display:flex;flex-direction:column;flex:1;}
.card-title{font-size:18px;line-height:1.5;margin-bottom:10px;}
.card-desc{
  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{
  margin-top:auto;padding-top:16px;border-top:1px solid var(--line);
  display:flex;align-items:center;justify-content:space-between;
  font-size:13px;color:var(--text-3);
}
.card-meta .num{font-variant-numeric:tabular-nums;color:var(--cyan);}
.card-meta i{font-size:11px;margin-left:6px;transition:transform .22s ease-out;}
.board-card:hover .card-meta i{transform:translateX(4px);}

/* ---------- 要点清单 ---------- */
.points-band{
  background:linear-gradient(180deg,rgba(14,21,38,.7),rgba(6,10,20,0));
  border-top:1px solid var(--line);border-bottom:1px solid var(--line);
}
.points{display:grid;grid-template-columns:repeat(2,1fr);gap:0 48px;}
.point-item{
  display:flex;align-items:flex-start;gap:22px;
  padding:24px 0;border-bottom:1px solid var(--line);
}
.point-num{
  font-size:22px;font-weight:700;color:var(--cyan);
  font-variant-numeric:tabular-nums;min-width:48px;line-height:1.2;
}
.point-item h3{font-size:17px;margin-bottom:6px;}
.point-item p{font-size:14px;color:var(--text-2);margin:0;}

/* ---------- 维度切换 ---------- */
.dim-tabs{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:26px;}
.dim-tab{
  padding:10px 20px;border-radius:999px;cursor:pointer;
  background:transparent;border:1px solid var(--line-strong);
  color:var(--text-2);font-size:14px;transition:all .22s ease-out;
}
.dim-tab:hover{color:var(--text);border-color:var(--cyan);}
.dim-tab.active{background:rgba(27,84,255,.18);border-color:var(--primary);color:var(--text);}
.dim-panel{display:none;}
.dim-panel.active{display:grid;grid-template-columns:1.05fr 1fr;gap:32px;}
.dim-panel .lead{font-size:15px;color:var(--text-2);}
.dim-panel h3{font-size:20px;margin-bottom:14px;}
.metric-list{border-top:1px solid var(--line);}
.metric-row{
  display:flex;align-items:center;justify-content:space-between;
  padding:15px 0;border-bottom:1px dashed var(--line);font-size:15px;
}
.metric-row span{color:var(--text-2);}
.metric-row b{font-variant-numeric:tabular-nums;color:var(--cyan);font-size:17px;}
.dim-card{
  background:var(--panel);border:1px solid var(--line);
  border-radius:var(--r-md);padding:24px;box-shadow:var(--shadow-card);
}

/* ---------- FAQ ---------- */
.faq-list{border-top:1px solid var(--line);}
.faq-item{border-bottom:1px solid var(--line);}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:20px;
  padding:22px 0;background:none;border:0;cursor:pointer;text-align:left;
  color:var(--text);font-size:17px;font-weight:600;line-height:1.6;
}
.faq-q:hover{color:var(--cyan);}
.faq-icon{
  flex:0 0 auto;width:30px;height:30px;border-radius:50%;
  display:inline-flex;align-items:center;justify-content:center;
  border:1px solid var(--line-strong);color:var(--cyan);font-size:12px;
  transition:transform .22s ease-out, background-color .22s ease-out;
}
.faq-q[aria-expanded="true"] .faq-icon{transform:rotate(45deg);background:rgba(61,240,168,.12);}
.faq-a{padding:0 0 24px 0;color:var(--text-2);font-size:15px;max-width:860px;}
.faq-a::before{
  content:"";display:block;width:3px;height:22px;margin-bottom:12px;
  background:var(--cyan);border-radius:2px;box-shadow:0 0 10px rgba(61,240,168,.6);
}

/* ---------- CTA ---------- */
.cta-band{
  background:var(--glass);border:1px solid var(--line-strong);
  border-radius:var(--r-lg);padding:40px;
  display:flex;align-items:center;justify-content:space-between;gap:32px;
  backdrop-filter:blur(14px);
}
.cta-band h2{font-size:clamp(22px,2.4vw,30px);margin-bottom:10px;}
.cta-band p{color:var(--text-2);font-size:15px;margin:0;}
.cta-actions{display:flex;gap:14px;flex-wrap:wrap;flex:0 0 auto;}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:10px;
  height:46px;padding:0 26px;border-radius:999px;
  font-size:15px;font-weight:600;cursor:pointer;border:1px solid transparent;
  transition:all .22s ease-out;
}
.btn-primary{
  background:var(--primary);color:#fff;
  box-shadow:var(--shadow-glow);
}
.btn-primary:hover{background:#2A62FF;color:#fff;transform:translateY(-2px);}
.btn-ghost{
  background:transparent;border-color:var(--line-strong);color:var(--text);
}
.btn-ghost:hover{border-color:var(--orange);color:var(--orange);transform:translateY(-2px);}
.btn-lg{height:54px;padding:0 32px;font-size:16px;}

/* ---------- 页脚 ---------- */
.site-footer{
  margin-top:var(--sp);
  border-top:1px solid var(--line);
  background:linear-gradient(180deg,rgba(14,21,38,.72),rgba(6,10,20,1));
  position:relative;
}
.site-footer::before{
  content:"";position:absolute;left:0;right:0;top:-1px;height:1px;
  background:linear-gradient(90deg,transparent,rgba(27,84,255,.85),rgba(61,240,168,.7),transparent);
}
.footer-grid{
  display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:36px;
  padding:64px 0 40px;
}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:18px;}
.footer-about{font-size:14px;color:var(--text-2);max-width:340px;}
.footer-col h4{font-size:15px;margin-bottom:18px;}
.footer-links li + li{margin-top:11px;}
.footer-links a{font-size:14px;color:var(--text-2);}
.footer-links a:hover{color:var(--cyan);}
.footer-contact li{display:flex;gap:11px;font-size:14px;color:var(--text-2);}
.footer-contact li + li{margin-top:12px;}
.footer-contact i{color:var(--cyan);margin-top:5px;font-size:13px;}
.footer-bottom{
  display:flex;align-items:center;justify-content:space-between;gap:20px;
  padding:22px 0 28px;border-top:1px solid var(--line);
  font-size:13px;color:var(--text-3);
}
.to-top{
  display:inline-flex;align-items:center;gap:8px;
  background:transparent;border:1px solid var(--line-strong);
  color:var(--text-2);font-size:13px;padding:8px 16px;border-radius:999px;cursor:pointer;
  transition:all .22s ease-out;
}
.to-top:hover{color:var(--cyan);border-color:var(--cyan);}

/* ---------- 响应式 ---------- */
@media (max-width:1399px){
  .container{max-width:1140px;}
}
@media (max-width:1199px){
  .board-grid{grid-template-columns:repeat(3,1fr);}
  .board-card.wide{grid-column:span 2;}
  .mega-panel{width:660px;grid-template-columns:1fr 1fr;}
  .mega-col:last-child{display:none;}
  .dim-panel.active{grid-template-columns:1fr;}
}
@media (max-width:991px){
  :root{--sp:64px;}
  .nav-toggle{display:inline-flex;align-items:center;justify-content:center;}
  .nav-menu{
    position:fixed;left:0;right:0;top:var(--nav-h);
    background:rgba(8,13,26,.985);
    border-bottom:1px solid var(--line-strong);
    padding:16px 24px 26px;
    transform:translateY(-12px);opacity:0;visibility:hidden;
    transition:opacity .22s ease-out, transform .22s ease-out, visibility .22s;
  }
  .nav-menu.open{transform:translateY(0);opacity:1;visibility:visible;}
  .nav-list{flex-direction:column;align-items:stretch;gap:2px;}
  .nav-link{padding:14px 12px;font-size:16px;}
  .nav-link.active::after{left:12px;right:auto;width:26px;}
  .mega-panel{
    position:fixed;left:16px;right:16px;top:calc(var(--nav-h) + 8px);
    width:auto;grid-template-columns:1fr;max-height:70vh;overflow-y:auto;
  }
  .board-grid{grid-template-columns:repeat(2,1fr);}
  .board-card.wide{grid-column:span 2;flex-direction:column;}
  .board-card.wide .cover{width:100%;aspect-ratio:16/10;min-height:0;}
  .points{grid-template-columns:1fr;gap:0;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;padding:52px 0 32px;}
  .cta-band{flex-direction:column;align-items:flex-start;padding:32px;}
  .cat-strip{top:var(--nav-h);}
}
@media (max-width:767px){
  :root{--sp:48px;}
  .container{padding:0 16px;}
  .page-hero{min-height:0;}
  .hero-inner{padding:44px 16px 40px;}
  .hero-arc{width:420px;height:420px;right:-190px;top:-140px;}
  .board-grid{grid-template-columns:1fr;gap:18px;}
  .board-card.wide{grid-column:span 1;}
  .dim-tabs{gap:8px;}
  .dim-tab{padding:9px 16px;font-size:13px;}
  .footer-grid{grid-template-columns:1fr;}
  .footer-bottom{flex-direction:column;align-items:flex-start;gap:14px;}
  .cta-actions{width:100%;}
  .cta-actions .btn{flex:1 1 auto;}
}
@media (max-width:479px){
  body{font-size:15px;}
  .brand-text{font-size:17px;}
  .stat{min-width:calc(50% - 6px);padding:11px 14px;}
  .stat b{font-size:19px;}
  .card-body{padding:18px;}
  .point-item{gap:16px;}
  .point-num{font-size:19px;min-width:38px;}
}

/* roulang page: category4 */
:root{
  --bg:#060A14;
  --panel:#0E1526;
  --glass:rgba(18,26,44,.62);
  --primary:#1B54FF;
  --accent:#3DF0A8;
  --warn:#FF7A29;
  --text:#E8EEF9;
  --muted:#9AA9C4;
  --dim:#64748B;
  --line:rgba(120,160,255,.14);
  --radius-lg:22px;
  --radius:16px;
  --radius-sm:12px;
  --shadow-card:0 1px 0 rgba(255,255,255,.04) inset, 0 10px 30px rgba(0,0,0,.45);
  --shadow-glow:0 0 0 1px rgba(61,240,168,.35), 0 8px 28px rgba(27,84,255,.45);
  --nav-h:74px;
  --space-section:88px;
}
*{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:1.8;
  -webkit-font-smoothing:antialiased;
  font-variant-numeric:tabular-nums;
  overflow-x:hidden;
}
body::before{
  content:"";
  position:fixed;
  inset:0;
  background-image:linear-gradient(rgba(120,160,255,.06) 1px, transparent 1px),
                   linear-gradient(90deg, rgba(120,160,255,.06) 1px, transparent 1px);
  background-size:56px 56px;
  opacity:.35;
  pointer-events:none;
  z-index:0;
}
a{color:inherit;text-decoration:none;}
a:hover{color:var(--text);}
img{max-width:100%;display:block;}
p{margin:0 0 18px;}
h1,h2,h3,h4{margin:0;font-weight:700;line-height:1.3;letter-spacing:.2px;}
ul{margin:0;padding:0;list-style:none;}
button{font-family:inherit;}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px;border-radius:6px;}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px;position:relative;z-index:2;}
main{position:relative;z-index:1;}

/* ---------- 导航 ---------- */
.site-header{
  position:sticky;
  top:0;
  z-index:60;
  background:rgba(6,10,20,.88);
  backdrop-filter:blur(14px);
  border-bottom:1px solid var(--line);
}
.nav-inner{
  display:flex;
  align-items:center;
  gap:22px;
  height:var(--nav-h);
}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto;}
.brand-mark{
  width:36px;height:36px;border-radius:10px;
  display:flex;align-items:center;justify-content:center;
  background:var(--primary);
  color:#fff;font-size:15px;
  box-shadow:0 6px 18px rgba(27,84,255,.45);
}
.brand-text{font-size:17px;font-weight:700;letter-spacing:.5px;color:var(--text);}
.brand-text em{font-style:normal;color:var(--accent);}
.nav-menu{flex:1 1 auto;}
.nav-list{display:flex;align-items:center;gap:2px;}
.nav-link{
  position:relative;
  display:inline-block;
  padding:9px 14px;
  border-radius:999px;
  font-size:15px;
  color:var(--muted);
  transition:color .2s ease-out, background-color .2s ease-out;
}
.nav-link:hover{color:var(--text);background:rgba(27,84,255,.14);}
.nav-link.active{color:var(--text);}
.nav-link.active::after{
  content:"";
  position:absolute;
  left:50%;bottom:2px;
  width:22px;height:2px;
  border-radius:2px;
  background:var(--accent);
  transform:translateX(-50%);
}
.nav-right{display:flex;align-items:center;gap:12px;margin-left:auto;}
.mega-wrap{position:relative;}
.mega-trigger{
  display:inline-flex;align-items:center;gap:8px;
  height:40px;padding:0 18px;
  border-radius:999px;
  background:transparent;
  border:1px solid rgba(27,84,255,.55);
  color:var(--muted);
  font-size:14px;
  cursor:pointer;
  transition:all .22s ease-out;
}
.mega-trigger:hover{color:var(--text);border-color:var(--accent);}
.mega-trigger i{transition:transform .22s ease-out;font-size:12px;}
.mega-trigger[aria-expanded="true"] i{transform:rotate(180deg);}
.mega-panel{
  position:absolute;
  top:calc(100% + 14px);
  right:0;
  width:720px;
  display:grid;
  grid-template-columns:1.1fr 1.2fr 1fr;
  gap:22px;
  padding:24px;
  border-radius:var(--radius-lg);
  background:var(--glass);
  backdrop-filter:blur(18px);
  border:1px solid var(--line);
  box-shadow:0 24px 60px rgba(0,0,0,.55);
  opacity:0;
  visibility:hidden;
  transform:translateY(8px);
  transition:opacity .22s ease-out, transform .22s ease-out, visibility .22s;
}
.mega-panel::before{
  content:"";
  position:absolute;left:18px;right:18px;top:0;height:1px;
  background:linear-gradient(90deg, transparent, var(--accent), transparent);
  opacity:.7;
}
.mega-panel.open{opacity:1;visibility:visible;transform:translateY(0);}
.mega-col-title{font-size:13px;color:var(--dim);letter-spacing:1px;margin-bottom:12px;}
.mega-links li + li{margin-top:4px;}
.mega-links a{
  display:flex;align-items:center;justify-content:space-between;
  padding:8px 12px;border-radius:10px;
  font-size:14px;color:var(--muted);
  transition:all .2s ease-out;
}
.mega-links a i{font-size:11px;opacity:0;transform:translateX(-4px);transition:all .2s ease-out;}
.mega-links a:hover{background:rgba(27,84,255,.16);color:var(--text);}
.mega-links a:hover i{opacity:1;transform:translateX(0);}
.mega-post{display:block;padding:10px 12px;border-radius:12px;transition:background .2s ease-out;}
.mega-post:hover{background:rgba(27,84,255,.16);}
.mega-post strong{display:block;font-size:14px;font-weight:600;color:var(--text);line-height:1.5;}
.mega-post span{display:block;font-size:12px;color:var(--dim);margin-top:4px;}
.mega-entry{
  display:block;
  padding:16px;
  border-radius:14px;
  background:rgba(27,84,255,.14);
  border:1px solid rgba(27,84,255,.35);
  transition:all .22s ease-out;
}
.mega-entry i{color:var(--accent);font-size:16px;}
.mega-entry strong{display:block;font-size:15px;margin:10px 0 6px;color:var(--text);}
.mega-entry span{display:block;font-size:12.5px;color:var(--muted);line-height:1.6;}
.mega-entry span i{font-size:11px;color:var(--accent);margin-left:4px;}
.mega-entry:hover{transform:translateY(-2px);border-color:var(--accent);}
.nav-toggle{
  display:none;
  width:42px;height:42px;
  border-radius:12px;
  background:rgba(18,26,44,.9);
  border:1px solid var(--line);
  color:var(--text);
  font-size:16px;
  cursor:pointer;
}

/* ---------- 按钮 ---------- */
.btn-main,.btn-ghost,.btn-line{
  display:inline-flex;align-items:center;justify-content:center;gap:9px;
  height:46px;padding:0 26px;
  border-radius:999px;
  font-size:15px;font-weight:600;
  border:1px solid transparent;
  cursor:pointer;
  transition:transform .22s ease-out, box-shadow .22s ease-out, background-color .22s ease-out, border-color .22s ease-out, color .22s ease-out;
}
.btn-main{
  background:var(--primary);
  color:#fff;
  box-shadow:var(--shadow-glow);
}
.btn-main:hover{transform:translateY(-2px);box-shadow:0 0 0 1px rgba(61,240,168,.5),0 14px 36px rgba(27,84,255,.6);color:#fff;}
.btn-line{
  background:transparent;
  border-color:rgba(27,84,255,.6);
  color:var(--text);
}
.btn-line:hover{background:rgba(27,84,255,.18);border-color:var(--accent);transform:translateY(-2px);color:var(--text);}
.btn-ghost{
  height:auto;padding:0;
  background:transparent;border:0;
  color:var(--accent);
  font-weight:600;
}
.btn-ghost:hover{color:#fff;transform:translateX(3px);}
.btn-lg{height:54px;padding:0 32px;font-size:16px;}

/* ---------- 徽章 ---------- */
.badge-pill{
  display:inline-flex;align-items:center;gap:6px;
  padding:5px 12px;
  border-radius:999px;
  font-size:12px;
  color:var(--accent);
  background:rgba(18,26,44,.72);
  border:1px solid rgba(61,240,168,.28);
  backdrop-filter:blur(8px);
}

/* ---------- Hero ---------- */
.hero{
  position:relative;
  min-height:320px;
  display:flex;
  align-items:flex-end;
  padding:56px 0 46px;
  background-image:url("/assets/images/backpic/back-1.webp");
  background-size:cover;
  background-position:center;
  overflow:hidden;
}
.hero::before{
  content:"";
  position:absolute;inset:0;
  background:linear-gradient(180deg, rgba(6,10,20,.72) 0%, rgba(6,10,20,.9) 62%, var(--bg) 100%);
}
.hero::after{
  content:"";
  position:absolute;
  right:-140px;top:-120px;
  width:520px;height:520px;
  border-radius:50%;
  border:1px solid rgba(61,240,168,.22);
  box-shadow:0 0 120px rgba(27,84,255,.35) inset;
  pointer-events:none;
}
.hero .container{position:relative;z-index:2;}
.crumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--dim);margin-bottom:16px;}
.crumb a{color:var(--dim);transition:color .2s ease-out;}
.crumb a:hover{color:var(--accent);}
.crumb span.sep{opacity:.6;}
.crumb .now{color:var(--muted);}
.hero h1{
  font-size:clamp(30px,4.2vw,52px);
  line-height:1.25;
  max-width:820px;
}
.hero h1 em{font-style:normal;color:var(--accent);}
.hero-sub{
  margin:18px 0 24px;
  max-width:700px;
  font-size:17px;
  color:var(--muted);
}
.hero-tags{display:flex;flex-wrap:wrap;gap:10px;}
.hero-tags .badge-pill{color:var(--muted);background:rgba(18,26,44,.6);border-color:var(--line);}
.hero-tags .badge-pill i{color:var(--accent);font-size:11px;}

/* ---------- 分类互链 ---------- */
.cat-bar{
  position:sticky;
  top:var(--nav-h);
  z-index:40;
  background:rgba(6,10,20,.9);
  backdrop-filter:blur(12px);
  border-bottom:1px solid var(--line);
}
.cat-bar-inner{
  display:flex;
  align-items:center;
  gap:12px;
  padding:14px 0;
  overflow-x:auto;
  scrollbar-width:none;
}
.cat-bar-inner::-webkit-scrollbar{display:none;}
.cat-chip{
  flex:0 0 auto;
  display:inline-flex;align-items:center;gap:8px;
  padding:9px 18px;
  border-radius:999px;
  font-size:14px;
  white-space:nowrap;
  background:rgba(18,26,44,.66);
  border:1px solid var(--line);
  color:var(--muted);
  transition:all .22s ease-out;
}
.cat-chip i{font-size:11px;opacity:.8;}
.cat-chip:hover{color:var(--text);border-color:rgba(61,240,168,.5);transform:translateY(-2px);}
.cat-chip.is-current{
  background:var(--primary);
  border-color:var(--primary);
  color:#fff;
  box-shadow:0 8px 24px rgba(27,84,255,.45);
}

/* ---------- 板块通用 ---------- */
.section{padding:var(--space-section) 0;}
.section-head{margin-bottom:28px;}
.section-head .eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;color:var(--accent);
  letter-spacing:1px;margin-bottom:12px;
}
.section-head h2{font-size:clamp(24px,2.6vw,34px);}
.section-head p{margin:12px 0 0;color:var(--muted);max-width:720px;font-size:15.5px;}
.head-row{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;flex-wrap:wrap;}

/* ---------- 条目网格 ---------- */
.card-grid{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:24px;
}
.card{
  position:relative;
  display:flex;
  flex-direction:column;
  background:var(--panel);
  border:1px solid var(--line);
  border-radius:var(--radius);
  overflow:hidden;
  box-shadow:var(--shadow-card);
  transition:transform .24s ease-out, border-color .24s ease-out, box-shadow .24s ease-out;
}
.card:hover{transform:translateY(-4px);border-color:rgba(27,84,255,.75);box-shadow:0 1px 0 rgba(255,255,255,.05) inset, 0 18px 40px rgba(0,0,0,.55);}
.card-wide{grid-column:span 2;}
.card-cover{
  position:relative;
  aspect-ratio:16/9;
  overflow:hidden;
  background:#0A1020;
}
.card-cover img{width:100%;height:100%;object-fit:cover;transition:transform .3s ease-out;}
.card:hover .card-cover img{transform:scale(1.03);}
.card-cover::after{
  content:"";
  position:absolute;inset:0;
  background:linear-gradient(180deg, rgba(6,10,20,.05) 40%, rgba(6,10,20,.75) 100%);
}
.card-cover .badge-pill{position:absolute;top:12px;left:12px;z-index:2;}
.card-body{padding:20px 22px 22px;display:flex;flex-direction:column;flex:1 1 auto;}
.card-body h3{
  font-size:18px;
  line-height:1.5;
  display:-webkit-box;
  -webkit-line-clamp:2;
  -webkit-box-orient:vertical;
  overflow:hidden;
}
.card-body p{
  margin:10px 0 0;
  font-size:14.5px;
  color:var(--muted);
  line-height:1.75;
  display:-webkit-box;
  -webkit-line-clamp:2;
  -webkit-box-orient:vertical;
  overflow:hidden;
}
.card-foot{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:12px;
  margin-top:18px;
  padding-top:14px;
  border-top:1px solid var(--line);
  font-size:13px;
  color:var(--dim);
}
.card-foot .go{display:inline-flex;align-items:center;gap:6px;color:var(--muted);transition:all .2s ease-out;}
.card:hover .card-foot .go{color:var(--accent);transform:translateX(3px);}
.card-wide .card-cover{aspect-ratio:21/9;}

/* ---------- 要点清单 ---------- */
.checklist-wrap{
  background:var(--panel);
  border:1px solid var(--line);
  border-radius:var(--radius-lg);
  padding:34px 36px;
  box-shadow:var(--shadow-card);
}
.checklist{display:grid;gap:0;}
.check-item{
  display:grid;
  grid-template-columns:64px 1fr;
  gap:20px;
  align-items:center;
  padding:18px 0;
  border-bottom:1px solid var(--line);
}
.check-item:last-child{border-bottom:0;}
.check-num{
  font-size:22px;
  font-weight:700;
  color:var(--accent);
  letter-spacing:1px;
}
.check-item p{margin:0;font-size:15.5px;color:var(--text);}
.check-item small{display:block;color:var(--dim);font-size:13px;margin-top:2px;}

/* ---------- 速查表单 ---------- */
.search-panel{
  display:grid;
  grid-template-columns:1.6fr 1fr;
  gap:32px;
  align-items:center;
  background:var(--glass);
  backdrop-filter:blur(16px);
  border:1px solid var(--line);
  border-radius:var(--radius-lg);
  padding:34px 36px;
  box-shadow:var(--shadow-card);
}
.search-panel h2{font-size:26px;margin-bottom:10px;}
.search-panel p{color:var(--muted);font-size:15px;margin:0;}
.quick-form{display:grid;grid-template-columns:1fr 1fr;gap:16px;}
.field{display:flex;flex-direction:column;gap:8px;}
.field label{font-size:14px;color:var(--muted);}
.field select,.field input{
  height:46px;
  padding:0 14px;
  border-radius:var(--radius-sm);
  background:var(--panel);
  border:1px solid var(--line);
  color:var(--text);
  font-size:14.5px;
  transition:border-color .2s ease-out, box-shadow .2s ease-out;
}
.field select:focus,.field input:focus{
  outline:none;
  border-color:var(--primary);
  box-shadow:0 0 0 3px rgba(27,84,255,.28);
}
.quick-form .full{grid-column:1 / -1;}
.form-hint{grid-column:1 / -1;font-size:13px;color:var(--dim);margin:0;}

/* ---------- FAQ ---------- */
.faq-list{border-top:1px solid var(--line);}
.faq-item{border-bottom:1px solid var(--line);}
.faq-item summary{
  list-style:none;
  cursor:pointer;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:18px;
  padding:20px 4px 20px 16px;
  font-size:16.5px;
  font-weight:600;
  color:var(--text);
  border-left:3px solid transparent;
  transition:border-color .2s ease-out, color .2s ease-out, padding-left .2s ease-out;
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary:hover{color:var(--accent);}
.faq-item summary .ico{
  flex:0 0 auto;
  width:28px;height:28px;
  border-radius:50%;
  display:flex;align-items:center;justify-content:center;
  background:rgba(27,84,255,.15);
  border:1px solid rgba(27,84,255,.4);
  color:var(--accent);
  font-size:13px;
  transition:transform .24s ease-out, background-color .24s ease-out;
}
.faq-item[open] summary{border-left-color:var(--accent);padding-left:18px;}
.faq-item[open] summary .ico{transform:rotate(180deg);background:rgba(61,240,168,.18);}
.faq-answer{padding:0 4px 22px 18px;color:var(--muted);font-size:15px;}
.faq-answer p{margin:0;}

/* ---------- CTA ---------- */
.cta{
  position:relative;
  border-radius:var(--radius-lg);
  overflow:hidden;
  border:1px solid var(--line);
  background:url("/assets/images/backpic/back-3.png") center/cover no-repeat;
  box-shadow:var(--shadow-card);
}
.cta::before{
  content:"";
  position:absolute;inset:0;
  background:linear-gradient(110deg, rgba(6,10,20,.94) 12%, rgba(6,10,20,.62) 100%);
}
.cta-inner{
  position:relative;
  z-index:2;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:28px;
  flex-wrap:wrap;
  padding:40px 42px;
}
.cta-inner h2{font-size:clamp(22px,2.4vw,30px);margin-bottom:10px;}
.cta-inner p{margin:0;color:var(--muted);font-size:15px;}
.cta-actions{display:flex;gap:14px;flex-wrap:wrap;}

/* ---------- 相关推荐 ---------- */
.rec-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;}
.rec-item{
  display:flex;gap:16px;
  padding:16px;
  border-radius:14px;
  background:var(--panel);
  border:1px solid var(--line);
  transition:all .22s ease-out;
}
.rec-item:hover{transform:translateY(-3px);border-color:rgba(27,84,255,.7);}
.rec-item .thumb{
  flex:0 0 84px;
  width:84px;height:64px;
  border-radius:10px;
  overflow:hidden;
}
.rec-item .thumb img{width:100%;height:100%;object-fit:cover;}
.rec-item strong{display:block;font-size:14.5px;line-height:1.55;font-weight:600;}
.rec-item span{display:block;font-size:12.5px;color:var(--dim);margin-top:6px;}

/* ---------- 页脚 ---------- */
.site-footer{
  position:relative;
  margin-top:20px;
  background:#04070F;
  border-top:1px solid var(--line);
  padding:64px 0 24px;
}
.site-footer::before{
  content:"";
  position:absolute;left:0;right:0;top:0;height:1px;
  background:linear-gradient(90deg, transparent, rgba(61,240,168,.55), transparent);
}
.footer-grid{
  display:grid;
  grid-template-columns:1.5fr 1fr 1fr 1.3fr;
  gap:32px;
}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px;}
.footer-about{color:var(--muted);font-size:14px;margin:0;line-height:1.8;}
.footer-col h4{font-size:15px;margin-bottom:16px;color:var(--text);}
.footer-links li + li{margin-top:10px;}
.footer-links a{font-size:14px;color:var(--muted);transition:color .2s ease-out, padding-left .2s ease-out;}
.footer-links a:hover{color:var(--accent);padding-left:4px;}
.footer-contact li{display:flex;gap:10px;font-size:13.5px;color:var(--muted);line-height:1.7;}
.footer-contact li + li{margin-top:12px;}
.footer-contact i{color:var(--accent);margin-top:6px;font-size:13px;}
.footer-bottom{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  flex-wrap:wrap;
  margin-top:44px;
  padding-top:22px;
  border-top:1px solid var(--line);
}
.footer-bottom p{margin:0;font-size:13px;color:var(--dim);}
.to-top{
  display:inline-flex;align-items:center;gap:8px;
  height:40px;padding:0 18px;
  border-radius:999px;
  background:rgba(18,26,44,.8);
  border:1px solid var(--line);
  color:var(--muted);
  font-size:13px;
  cursor:pointer;
  transition:all .22s ease-out;
}
.to-top:hover{color:var(--text);border-color:var(--accent);transform:translateY(-2px);}

/* ---------- 响应式 ---------- */
@media (max-width:1199px){
  .card-grid{grid-template-columns:repeat(2,1fr);}
  .footer-grid{grid-template-columns:1.4fr 1fr 1fr;}
  .footer-grid .footer-col:last-child{grid-column:1 / -1;}
}
@media (max-width:991px){
  :root{--nav-h:64px;--space-section:64px;}
  .nav-toggle{display:inline-flex;align-items:center;justify-content:center;}
  .nav-menu{
    position:absolute;
    left:0;right:0;top:100%;
    background:rgba(8,13,25,.98);
    backdrop-filter:blur(18px);
    border-bottom:1px solid var(--line);
    padding:12px 24px 20px;
    display:none;
  }
  .nav-menu.open{display:block;}
  .nav-list{flex-direction:column;align-items:stretch;gap:4px;}
  .nav-link{padding:12px 14px;border-radius:12px;font-size:15.5px;}
  .nav-link.active{background:rgba(27,84,255,.18);}
  .nav-link.active::after{display:none;}
  .mega-panel{
    width:min(560px,calc(100vw - 48px));
    grid-template-columns:1fr;
    max-height:70vh;
    overflow-y:auto;
  }
  .hero{min-height:280px;padding:44px 0 38px;}
  .search-panel{grid-template-columns:1fr;padding:28px;}
  .quick-form{grid-template-columns:1fr;}
  .card-grid{grid-template-columns:repeat(2,1fr);}
  .card-wide{grid-column:span 2;}
  .rec-grid{grid-template-columns:1fr 1fr;}
  .cta-inner{padding:32px 28px;}
  .checklist-wrap{padding:28px 24px;}
}
@media (max-width:767px){
  :root{--space-section:48px;}
  .container{padding:0 16px;}
  body{font-size:15.5px;}
  .brand-text{font-size:15.5px;}
  .hero{min-height:auto;}
  .hero h1{font-size:clamp(26px,7vw,34px);}
  .hero-sub{font-size:15.5px;}
  .card-grid{grid-template-columns:1fr;}
  .card-wide{grid-column:span 1;}
  .card-wide .card-cover{aspect-ratio:16/9;}
  .rec-grid{grid-template-columns:1fr;}
  .check-item{grid-template-columns:48px 1fr;gap:14px;}
  .check-num{font-size:19px;}
  .footer-grid{grid-template-columns:1fr;gap:26px;}
  .footer-grid .footer-col:last-child{grid-column:auto;}
  .cta-actions{width:100%;}
  .cta-actions .btn-main,.cta-actions .btn-line{width:100%;}
  .section-head h2{font-size:23px;}
}
@media (max-width:479px){
  h1{line-height:1.3;}
  .btn-main,.btn-line{height:44px;padding:0 20px;font-size:14.5px;}
  .checklist-wrap{padding:22px 18px;}
  .faq-item summary{font-size:15.5px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
}