/* roulang page: index */
:root{
  --c-bg:#080A18;
  --c-bg-2:#0E1126;
  --c-surface:#141834;
  --c-surface-2:#1B2044;
  --c-line:rgba(140,160,220,.16);
  --c-line-strong:rgba(140,160,220,.28);
  --c-primary:#22D3C5;
  --c-primary-weak:rgba(34,211,197,.12);
  --c-primary-weak-2:rgba(34,211,197,.24);
  --c-accent:#FF3D7F;
  --c-accent-2:#FFC857;
  --c-text:#E9ECFA;
  --c-text-2:#A3AACD;
  --c-text-3:#6E7597;
  --c-ok:#35D07F;
  --c-warn:#FFB020;
  --c-err:#FF5C7A;
  --cat-1:#22D3C5;
  --cat-2:#8B7BFF;
  --cat-3:#FF6FA5;
  --cat-4:#FFC857;
  --r-card:14px;
  --r-img:12px;
  --r-btn:10px;
  --r-input:10px;
  --elev-1:0 12px 32px rgba(0,0,0,.45);
  --elev-2:0 18px 44px rgba(0,0,0,.55);
  --t-fast:160ms;
  --t-card:220ms;
  --t-drawer:260ms;
  --ease:cubic-bezier(.2,.7,.3,1);
  --nav-w:248px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  background:var(--c-bg);
  color:var(--c-text);
  font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC","Hiragino Sans GB",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
  font-size:16px;
  line-height:1.8;
  font-weight:400;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
body.no-scroll{overflow:hidden}
img{max-width:100%;display:block;border:0}
a{color:inherit;text-decoration:none}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer}
ul,ol{list-style:none;margin:0;padding:0}
p{margin:0 0 1.2em;line-height:1.8}
h1,h2,h3,h4{margin:0;font-weight:800;line-height:1.28;letter-spacing:0}
h1{font-size:48px;font-weight:900}
h2{font-size:32px}
h3{font-size:22px}
h4{font-size:18px}
:focus-visible{outline:2px solid var(--c-primary);outline-offset:3px;border-radius:4px}
::selection{background:var(--c-primary-weak-2);color:#fff}
.container{width:100%;max-width:1280px;margin:0 auto;padding:0 32px}
.num{font-variant-numeric:tabular-nums;font-feature-settings:"tnum" 1}

/* ============ 侧边导航 ============ */
.sidenav{
  position:fixed;
  left:0;top:0;bottom:0;
  width:var(--nav-w);
  background:var(--c-bg);
  border-right:1px solid var(--c-line);
  display:flex;
  flex-direction:column;
  z-index:70;
  padding:24px 0 18px;
}
.brand{
  display:flex;
  align-items:center;
  gap:12px;
  padding:0 20px 22px;
  margin-bottom:8px;
  border-bottom:1px solid var(--c-line);
}
.brand-mark{
  flex:0 0 auto;
  width:40px;height:40px;
  display:grid;place-items:center;
  border-radius:12px;
  border:1px solid var(--c-line-strong);
  background:linear-gradient(150deg,rgba(34,211,197,.16),rgba(255,61,127,.08));
  color:var(--c-primary);
}
.brand-text{display:flex;flex-direction:column;min-width:0}
.brand-name{font-size:16px;font-weight:900;letter-spacing:.02em;white-space:nowrap}
.brand-sub{font-style:normal;font-size:12px;color:var(--c-text-3);letter-spacing:.08em;white-space:nowrap}
.sidenav-nav{
  flex:1 1 auto;
  display:flex;
  flex-direction:column;
  gap:4px;
  padding:14px 12px;
}
.nav-item{
  position:relative;
  display:flex;
  align-items:center;
  gap:12px;
  height:46px;
  padding:0 12px;
  border-radius:10px;
  color:var(--c-text-2);
  font-size:15px;
  font-weight:600;
  border-left:3px solid transparent;
  transition:background var(--t-fast) var(--ease),color var(--t-fast) var(--ease),border-color var(--t-fast) var(--ease);
}
.nav-item .nav-idx{
  font-size:12px;
  color:var(--c-text-3);
  font-variant-numeric:tabular-nums;
  min-width:18px;
}
.nav-item .nav-ico{width:18px;text-align:center;font-size:15px;color:var(--c-text-3);transition:color var(--t-fast) var(--ease)}
.nav-item .label{white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.nav-item:hover{background:rgba(140,160,220,.07);color:var(--c-text)}
.nav-item:hover .nav-ico{color:var(--c-primary)}
.nav-item.is-active{
  background:var(--c-primary-weak);
  color:var(--c-primary);
  border-left-color:var(--c-primary);
}
.nav-item.is-active .nav-ico,.nav-item.is-active .nav-idx{color:var(--c-primary)}
.sidenav-foot{
  padding:14px 18px 0;
  border-top:1px solid var(--c-line);
  display:flex;
  flex-wrap:wrap;
  gap:8px;
}
.copy-mini{
  width:100%;
  margin:6px 0 0;
  font-size:12px;
  color:var(--c-text-3);
  letter-spacing:.02em;
}

/* ============ 移动端顶栏 ============ */
.mobilebar{
  display:none;
  position:fixed;
  top:0;left:0;right:0;
  height:56px;
  align-items:center;
  justify-content:space-between;
  padding:0 14px;
  background:rgba(8,10,24,.94);
  backdrop-filter:blur(8px);
  border-bottom:1px solid var(--c-line);
  z-index:65;
}
.mobilebar .mb-brand{font-size:15px;font-weight:900;color:var(--c-primary);letter-spacing:.02em}
.mobilebar .mb-title{font-size:14px;color:var(--c-text-2)}
.hamburger{
  width:44px;height:44px;
  display:grid;place-items:center;
  border-radius:10px;
  border:1px solid var(--c-line-strong);
}
.hamburger span{
  display:block;
  width:18px;height:2px;
  background:var(--c-text);
  border-radius:2px;
  transition:transform var(--t-fast) var(--ease),opacity var(--t-fast) var(--ease);
}
.hamburger span+span{margin-top:4px}
.mobilebar.open .hamburger span:nth-child(1){transform:translateY(6px) rotate(45deg)}
.mobilebar.open .hamburger span:nth-child(2){opacity:0}
.mobilebar.open .hamburger span:nth-child(3){transform:translateY(-6px) rotate(-45deg)}
.scrim{
  position:fixed;
  inset:0;
  background:rgba(8,10,24,.72);
  opacity:0;
  visibility:hidden;
  transition:opacity var(--t-drawer) var(--ease),visibility var(--t-drawer) var(--ease);
  z-index:68;
}
.scrim.show{opacity:1;visibility:visible}

/* ============ 主体 ============ */
.main{margin-left:var(--nav-w);min-height:100vh}
.section{padding:88px 0;position:relative}
.section--alt{background:var(--c-bg-2);border-top:1px solid var(--c-line);border-bottom:1px solid var(--c-line)}
.sec-head{
  display:flex;
  align-items:flex-end;
  justify-content:space-between;
  gap:24px;
  margin-bottom:40px;
}
.sec-eyebrow{
  display:inline-flex;
  align-items:center;
  gap:8px;
  font-size:12px;
  letter-spacing:.18em;
  color:var(--c-accent-2);
  margin-bottom:10px;
  font-variant-numeric:tabular-nums;
}
.sec-eyebrow::before{content:"";width:18px;height:1px;background:var(--c-accent-2);display:block}
.sec-title{font-size:32px;font-weight:900}
.sec-desc{color:var(--c-text-2);font-size:15px;margin-top:10px;max-width:640px;line-height:1.8}
.sec-link{
  flex:0 0 auto;
  font-size:14px;
  font-weight:700;
  color:var(--c-primary);
  border:1px solid var(--c-line-strong);
  border-radius:999px;
  padding:8px 18px;
  transition:background var(--t-fast) var(--ease),border-color var(--t-fast) var(--ease);
  white-space:nowrap;
}
.sec-link:hover{background:var(--c-primary-weak);border-color:var(--c-primary)}
.sec-link i{margin-left:6px;font-size:12px}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  height:42px;
  padding:0 22px;
  border-radius:var(--r-btn);
  font-size:15px;
  font-weight:700;
  border:1px solid transparent;
  transition:background var(--t-fast) var(--ease),color var(--t-fast) var(--ease),box-shadow var(--t-fast) var(--ease),border-color var(--t-fast) var(--ease),transform var(--t-fast) var(--ease);
  white-space:nowrap;
}
.btn-primary{background:var(--c-primary);color:#06121A}
.btn-primary:hover{filter:brightness(1.08);box-shadow:0 0 0 1px var(--c-primary),0 0 12px rgba(34,211,197,.45)}
.btn-primary:active{transform:scale(.98)}
.btn-ghost{border-color:var(--c-line-strong);color:var(--c-text);background:transparent}
.btn-ghost:hover{background:var(--c-primary-weak);border-color:var(--c-primary);color:var(--c-primary)}
.btn-ghost:active{transform:scale(.98)}
.btn-lg{height:50px;padding:0 28px;font-size:16px}
.btn-sm{height:32px;padding:0 14px;font-size:13px;border-radius:8px}
.btn[disabled],.btn.is-disabled{opacity:.4;cursor:not-allowed}
.btn-text{
  display:inline-flex;
  align-items:center;
  gap:6px;
  font-size:14px;
  font-weight:700;
  color:var(--c-primary);
  position:relative;
  padding:6px 0;
}
.btn-text::after{
  content:"";
  position:absolute;
  left:0;bottom:2px;
  width:0;height:1px;
  background:var(--c-primary);
  transition:width var(--t-card) var(--ease);
}
.btn-text:hover::after{width:100%}

/* ============ 徽章 ============ */
.badge{
  display:inline-flex;
  align-items:center;
  height:24px;
  padding:0 10px;
  border-radius:999px;
  font-size:12px;
  font-weight:700;
  border:1px solid var(--c-line-strong);
  background:rgba(140,160,220,.1);
  color:var(--c-text-2);
  letter-spacing:.02em;
}
.badge-1{color:var(--cat-1);border-color:rgba(34,211,197,.42);background:rgba(34,211,197,.12)}
.badge-2{color:var(--cat-2);border-color:rgba(139,123,255,.42);background:rgba(139,123,255,.12)}
.badge-3{color:var(--cat-3);border-color:rgba(255,111,165,.42);background:rgba(255,111,165,.12)}
.badge-4{color:var(--cat-4);border-color:rgba(255,200,87,.42);background:rgba(255,200,87,.12)}
.badge-data{
  color:var(--c-accent-2);
  border-color:rgba(255,200,87,.5);
  background:rgba(255,200,87,.1);
  font-variant-numeric:tabular-nums;
}

/* ============ Hero ============ */
.hero{
  position:relative;
  min-height:580px;
  display:flex;
  align-items:center;
  overflow:hidden;
  background-color:var(--c-bg);
  background-image:
    linear-gradient(100deg,rgba(8,10,24,.94) 0%,rgba(8,10,24,.82) 46%,rgba(8,10,24,.6) 100%),
    url('/assets/images/backpic/back-1.png');
  background-size:cover;
  background-position:center right;
  border-bottom:1px solid var(--c-line);
}
.hero::after{
  content:"";
  position:absolute;
  left:0;right:0;bottom:0;
  height:1px;
  background:linear-gradient(90deg,transparent,rgba(34,211,197,.55),rgba(255,61,127,.35),transparent);
}
.hero-inner{
  position:relative;
  z-index:2;
  display:grid;
  grid-template-columns:minmax(0,1.15fr) minmax(0,.85fr);
  gap:48px;
  align-items:center;
  width:100%;
  padding-top:80px;
  padding-bottom:80px;
}
.hero-eyebrow{
  display:inline-flex;
  align-items:center;
  gap:10px;
  font-size:13px;
  letter-spacing:.14em;
  color:var(--c-primary);
  border:1px solid rgba(34,211,197,.35);
  background:rgba(34,211,197,.08);
  border-radius:999px;
  padding:6px 16px;
  margin-bottom:24px;
  font-variant-numeric:tabular-nums;
}
.hero h1{font-size:48px;line-height:1.22;letter-spacing:0;margin-bottom:20px}
.hero h1 em{font-style:normal;color:var(--c-primary)}
.hero-sub{
  font-size:17px;
  color:var(--c-text-2);
  margin-bottom:28px;
  max-width:560px;
  line-height:1.85;
}
.hero-stats{
  display:flex;
  flex-wrap:wrap;
  gap:14px;
  margin-bottom:32px;
}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px}
.hero-visual{
  position:relative;
  min-height:320px;
  border-radius:var(--r-card);
  border:1px solid var(--c-line);
  background:
    radial-gradient(circle at 78% 18%,rgba(34,211,197,.14),transparent 58%),
    radial-gradient(circle at 22% 84%,rgba(255,61,127,.12),transparent 55%),
    var(--c-surface);
  overflow:hidden;
  box-shadow:var(--elev-1);
}
.hero-visual img{
  width:100%;height:100%;
  min-height:320px;
  object-fit:cover;
  opacity:.62;
}
.hero-constellation{
  position:absolute;
  top:12px;right:12px;
  width:170px;height:170px;
  opacity:.9;
  pointer-events:none;
}
.hero-constellation .spark{animation:breathe 9s ease-in-out infinite}
.hero-visual .visual-tag{
  position:absolute;
  left:18px;bottom:18px;
  display:flex;gap:10px;flex-wrap:wrap;
}
@keyframes breathe{
  0%,100%{opacity:.32}
  50%{opacity:.95}
}

/* ============ 数据带 ============ */
.stats-band{
  display:grid;
  grid-template-columns:repeat(4,minmax(0,1fr));
  gap:1px;
  background:var(--c-line);
  border:1px solid var(--c-line);
  border-radius:var(--r-card);
  overflow:hidden;
}
.stat-cell{
  background:var(--c-bg-2);
  padding:26px 24px;
  transition:background var(--t-card) var(--ease);
}
.stat-cell:hover{background:var(--c-surface)}
.stat-num{
  font-size:34px;
  font-weight:900;
  color:var(--c-primary);
  font-variant-numeric:tabular-nums;
  line-height:1.1;
  letter-spacing:-.01em;
}
.stat-label{font-size:13px;color:var(--c-text-3);margin-top:8px;letter-spacing:.04em}
.stat-note{font-size:14px;color:var(--c-text-2);margin-top:6px}

/* ============ 合集目录 ============ */
.collection-grid{
  display:grid;
  grid-template-columns:repeat(2,minmax(0,1fr));
  gap:24px;
}
.collection-card{
  position:relative;
  display:flex;
  flex-direction:column;
  background:var(--c-surface);
  border:1px solid var(--c-line);
  border-radius:var(--r-card);
  overflow:hidden;
  transition:transform var(--t-card) var(--ease),border-color var(--t-card) var(--ease),box-shadow var(--t-card) var(--ease);
}
.collection-card:hover{
  transform:translateY(-3px);
  border-color:rgba(34,211,197,.42);
  box-shadow:var(--elev-2);
}
.collection-card .card-media{display:block;overflow:hidden;position:relative}
.collection-card .card-media img{
  width:100%;
  aspect-ratio:16/9;
  object-fit:cover;
  transition:transform var(--t-card) var(--ease);
}
.collection-card:hover .card-media img{transform:scale(1.04)}
.collection-card .card-body{
  padding:22px 22px 24px;
  display:flex;
  flex-direction:column;
  gap:12px;
  flex:1 1 auto;
}
.collection-card h3{font-size:22px;font-weight:900;line-height:1.35}
.collection-card p{color:var(--c-text-2);font-size:14.5px;margin:0;line-height:1.8}
.card-meta{
  display:flex;
  flex-wrap:wrap;
  gap:16px;
  font-size:13px;
  color:var(--c-text-3);
  font-variant-numeric:tabular-nums;
  margin-top:auto;
}
.card-arrow{
  position:absolute;
  right:20px;bottom:20px;
  width:34px;height:34px;
  display:grid;place-items:center;
  border-radius:50%;
  border:1px solid var(--c-line-strong);
  color:var(--c-text-3);
  font-size:13px;
  transition:all var(--t-card) var(--ease);
}
.collection-card:hover .card-arrow{
  border-color:var(--c-primary);
  color:var(--c-primary);
  background:var(--c-primary-weak);
  transform:translateX(3px);
}
.collection-card--wide{
  grid-column:span 2;
  flex-direction:row;
}
.collection-card--wide .card-media{
  flex:0 0 52%;
}
.collection-card--wide .card-media img{
  height:100%;
  aspect-ratio:auto;
  min-height:280px;
}
.collection-card--wide .card-body{padding:34px 34px 40px 32px;gap:16px}
.collection-card--wide h3{font-size:28px}
.collection-card--wide p{font-size:15.5px;max-width:460px}
.collection-card--wide .card-arrow{right:28px;bottom:28px}
.card-num{
  font-size:13px;
  color:var(--c-accent-2);
  letter-spacing:.2em;
  font-variant-numeric:tabular-nums;
}

/* ============ 精选条目 ============ */
.pick-grid{
  display:grid;
  grid-template-columns:repeat(2,minmax(0,1fr));
  gap:18px;
}
.pick-item{
  display:flex;
  gap:18px;
  padding:18px;
  background:var(--c-surface);
  border:1px solid var(--c-line);
  border-radius:var(--r-card);
  transition:transform var(--t-card) var(--ease),border-color var(--t-card) var(--ease),box-shadow var(--t-card) var(--ease);
}
.pick-item:hover{
  transform:translateY(-3px);
  border-color:rgba(34,211,197,.4);
  box-shadow:var(--elev-2);
}
.pick-thumb{
  flex:0 0 120px;
  width:120px;height:120px;
  border-radius:var(--r-img);
  overflow:hidden;
  border:1px solid var(--c-line);
}
.pick-thumb img{width:100%;height:100%;object-fit:cover;transition:transform var(--t-card) var(--ease)}
.pick-item:hover .pick-thumb img{transform:scale(1.05)}
.pick-body{display:flex;flex-direction:column;gap:8px;min-width:0}
.pick-body h3{font-size:18px;line-height:1.45;font-weight:800;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.pick-body p{
  margin:0;font-size:14px;color:var(--c-text-2);line-height:1.75;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.pick-meta{
  display:flex;align-items:center;gap:12px;flex-wrap:wrap;
  font-size:12.5px;color:var(--c-text-3);margin-top:auto;
  font-variant-numeric:tabular-nums;
}
.pick-meta .idx{color:var(--c-accent-2)}
.pick-foot{display:flex;justify-content:center;margin-top:32px}

/* ============ 最新资讯（CMS） ============ */
.news-grid{
  display:grid;
  grid-template-columns:repeat(3,minmax(0,1fr));
  gap:22px;
}
.news-card{
  background:var(--c-surface);
  border:1px solid var(--c-line);
  border-radius:var(--r-card);
  transition:transform var(--t-card) var(--ease),border-color var(--t-card) var(--ease),box-shadow var(--t-card) var(--ease);
  overflow:hidden;
}
.news-card:hover{
  transform:translateY(-3px);
  border-color:rgba(34,211,197,.4);
  box-shadow:var(--elev-2);
}
.news-link{
  display:flex;
  flex-direction:column;
  gap:12px;
  padding:22px;
  height:100%;
}
.news-title{
  font-size:17px;
  font-weight:800;
  line-height:1.5;
  display:-webkit-box;
  -webkit-line-clamp:2;
  -webkit-box-orient:vertical;
  overflow:hidden;
}
.news-summary{
  margin:0;
  font-size:14px;
  color:var(--c-text-2);
  line-height:1.8;
  display:-webkit-box;
  -webkit-line-clamp:2;
  -webkit-box-orient:vertical;
  overflow:hidden;
}
.news-meta{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:12px;
  margin-top:auto;
  padding-top:14px;
  border-top:1px solid var(--c-line);
  font-size:12.5px;
  color:var(--c-text-3);
  font-variant-numeric:tabular-nums;
}
.news-more{color:var(--c-primary);font-weight:700}
.news-card:hover .news-more{text-decoration:underline}
.empty-card{
  grid-column:1/-1;
  padding:56px 24px;
  text-align:center;
  border:1px dashed var(--c-line-strong);
  border-radius:var(--r-card);
  background:var(--c-surface);
  color:var(--c-text-2);
}
.empty-card i{font-size:26px;color:var(--c-text-3);display:block;margin-bottom:14px}
.empty-card p{margin:0;font-size:15px}

/* ============ 相关推荐（横向卡带） ============ */
.strip-wrap{
  position:relative;
  margin:0 -32px;
  padding:4px 32px 18px;
}
.strip{
  display:flex;
  gap:18px;
  overflow-x:auto;
  scroll-snap-type:x mandatory;
  padding-bottom:8px;
  -webkit-overflow-scrolling:touch;
}
.strip::-webkit-scrollbar{height:6px}
.strip::-webkit-scrollbar-thumb{background:var(--c-line-strong);border-radius:999px}
.strip::-webkit-scrollbar-track{background:transparent}
.mini-card{
  flex:0 0 300px;
  scroll-snap-align:start;
  background:var(--c-surface-2);
  border:1px solid var(--c-line);
  border-radius:var(--r-card);
  padding:20px;
  display:flex;
  flex-direction:column;
  gap:12px;
  transition:transform var(--t-card) var(--ease),border-color var(--t-card) var(--ease);
}
.mini-card:hover{transform:translateY(-3px);border-color:rgba(34,211,197,.4)}
.mini-card h4{font-size:16px;line-height:1.5}
.mini-card p{margin:0;font-size:13.5px;color:var(--c-text-2);line-height:1.75;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.mini-card .mini-foot{
  display:flex;align-items:center;justify-content:space-between;
  font-size:12.5px;color:var(--c-text-3);font-variant-numeric:tabular-nums;
  margin-top:auto;padding-top:12px;border-top:1px solid var(--c-line);
}

/* ============ 证据 / 数据 ============ */
.proof-grid{
  display:grid;
  grid-template-columns:repeat(3,minmax(0,1fr));
  gap:20px;
}
.proof-card{
  background:var(--c-bg-2);
  border:1px solid var(--c-line);
  border-radius:var(--r-card);
  padding:26px 24px;
  transition:border-color var(--t-card) var(--ease),transform var(--t-card) var(--ease);
}
.proof-card:hover{border-color:rgba(34,211,197,.36);transform:translateY(-3px)}
.proof-card i{color:var(--c-primary);font-size:20px;margin-bottom:14px;display:block}
.proof-card h4{font-size:17px;margin-bottom:10px}
.proof-card p{margin:0;font-size:14px;color:var(--c-text-2);line-height:1.8}
.proof-card .proof-num{
  font-size:26px;font-weight:900;color:var(--c-accent-2);
  font-variant-numeric:tabular-nums;display:block;margin-top:14px;
}

/* ============ CTA 星轨条 ============ */
.cta-strip{
  position:relative;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:24px;
  flex-wrap:wrap;
  padding:32px 34px;
  border-radius:var(--r-card);
  border:1px solid var(--c-line);
  background:
    radial-gradient(circle at 12% 20%,rgba(34,211,197,.16),transparent 55%),
    radial-gradient(circle at 88% 80%,rgba(255,61,127,.14),transparent 58%),
    var(--c-surface);
  overflow:hidden;
}
.cta-strip::before{
  content:"";
  position:absolute;
  left:0;top:0;right:0;height:1px;
  background:linear-gradient(90deg,transparent,rgba(34,211,197,.7),rgba(255,200,87,.55),transparent);
}
.cta-text strong{display:block;font-size:22px;font-weight:900;margin-bottom:8px}
.cta-text span{font-size:14.5px;color:var(--c-text-2)}
.cta-btns{display:flex;gap:12px;flex-wrap:wrap}

/* ============ FAQ ============ */
.faq-list{display:flex;flex-direction:column;gap:14px;max-width:920px}
.faq-item{
  border:1px solid var(--c-line);
  border-radius:var(--r-card);
  background:var(--c-surface);
  overflow:hidden;
  transition:border-color var(--t-card) var(--ease);
}
.faq-item:hover{border-color:var(--c-line-strong)}
.faq-q{
  width:100%;
  display:flex;
  align-items:center;
  gap:16px;
  min-height:56px;
  padding:14px 22px 14px 0;
  text-align:left;
  font-size:16px;
  font-weight:700;
  line-height:1.6;
  position:relative;
}
.faq-q::before{
  content:"";
  position:absolute;
  left:0;top:12px;bottom:12px;
  width:4px;
  background:var(--c-primary);
  border-radius:0 3px 3px 0;
  opacity:.9;
}
.faq-q .faq-idx{
  flex:0 0 auto;
  padding-left:22px;
  font-size:13px;
  color:var(--c-accent-2);
  font-variant-numeric:tabular-nums;
}
.faq-q .faq-text{flex:1 1 auto}
.faq-q .faq-sym{
  flex:0 0 auto;
  width:26px;height:26px;
  display:grid;place-items:center;
  border-radius:50%;
  border:1px solid var(--c-line-strong);
  color:var(--c-text-2);
  font-size:12px;
  transition:transform var(--t-fast) var(--ease),color var(--t-fast) var(--ease),border-color var(--t-fast) var(--ease);
}
.faq-q[aria-expanded="true"]{color:var(--c-primary)}
.faq-q[aria-expanded="true"] .faq-sym{
  transform:rotate(45deg);
  color:var(--c-primary);
  border-color:var(--c-primary);
}
.faq-a{
  padding:0 24px 20px 60px;
  background:rgba(8,10,24,.42);
  border-top:1px solid var(--c-line);
  font-size:15px;
  line-height:1.85;
  color:var(--c-text-2);
}
.faq-a p{margin:16px 0 0}

/* ============ 页脚 ============ */
.footer{
  position:relative;
  background:var(--c-bg);
  border-top:1px solid var(--c-line);
  padding:72px 0 0;
}
.footer::before{
  content:"";
  position:absolute;
  left:0;right:0;top:-1px;height:1px;
  background:linear-gradient(90deg,transparent,rgba(34,211,197,.6),rgba(255,200,87,.45),transparent);
}
.footer-grid{
  display:grid;
  grid-template-columns:1.4fr 1fr 1fr 1fr;
  gap:40px;
  padding-bottom:48px;
}
.footer h5{
  font-size:14px;
  font-weight:800;
  letter-spacing:.1em;
  color:var(--c-text);
  margin:0 0 18px;
}
.footer-brand p{color:var(--c-text-2);font-size:14px;line-height:1.85;margin:14px 0 0;max-width:340px}
.footer-brand .brand-name{font-size:18px}
.footer-links{display:flex;flex-direction:column;gap:11px}
.footer-links a{
  font-size:14px;
  color:var(--c-text-2);
  transition:color var(--t-fast) var(--ease),padding-left var(--t-fast) var(--ease);
}
.footer-links a:hover{color:var(--c-primary);padding-left:4px}
.footer-bottom{
  border-top:1px solid var(--c-line);
  padding:22px 0 30px;
  display:flex;
  justify-content:space-between;
  align-items:center;
  gap:16px;
  flex-wrap:wrap;
  font-size:13px;
  color:var(--c-text-3);
}
.footer-bottom .dot{color:var(--c-line-strong);margin:0 8px}

/* ============ Toast ============ */
.toast{
  position:fixed;
  left:50%;
  bottom:36px;
  transform:translate(-50%,20px);
  min-width:200px;
  max-width:min(88vw,420px);
  padding:12px 20px;
  border-radius:10px;
  background:var(--c-surface);
  border:1px solid var(--c-line-strong);
  color:var(--c-text);
  font-size:14px;
  text-align:center;
  opacity:0;
  visibility:hidden;
  transition:opacity var(--t-card) var(--ease),transform var(--t-card) var(--ease),visibility var(--t-card) var(--ease);
  z-index:200;
  box-shadow:var(--elev-2);
}
.toast.show{opacity:1;visibility:visible;transform:translate(-50%,0)}
.toast.ok{border-color:var(--c-ok)}
.toast.err{border-color:var(--c-err)}

/* ============ 响应式 ============ */
@media (max-width:1279px){
  :root{--nav-w:80px}
  .brand{justify-content:center;padding:0 0 20px}
  .brand-text{display:none}
  .sidenav-nav{padding:14px 10px;gap:6px}
  .nav-item{
    flex-direction:column;
    gap:2px;
    height:auto;
    padding:10px 0;
    justify-content:center;
    border-left-width:0;
    border-radius:10px;
  }
  .nav-item .nav-idx{font-size:10px;line-height:1}
  .nav-item .nav-ico{font-size:16px;line-height:1.2}
  .nav-item .label{
    position:absolute;
    left:76px;
    top:50%;
    transform:translateY(-50%);
    display:none;
    background:var(--c-surface);
    border:1px solid var(--c-line-strong);
    color:var(--c-text);
    padding:6px 14px;
    border-radius:8px;
    font-size:13.5px;
    white-space:nowrap;
    z-index:90;
    box-shadow:var(--elev-1);
  }
  .nav-item:hover .label,.nav-item:focus-visible .label{display:block}
  .nav-item.is-active{border-left-width:0;box-shadow:inset 3px 0 0 var(--c-primary)}
  .sidenav-foot{flex-direction:column;align-items:center;padding:14px 8px 0}
  .sidenav-foot .btn{width:44px;padding:0;overflow:hidden;white-space:nowrap}
  .sidenav-foot .btn i{font-size:14px}
  .sidenav-foot .btn .btn-txt{display:none}
  .copy-mini{text-align:center;font-size:10px;line-height:1.5}
  h1{font-size:40px}
  .hero h1{font-size:40px}
  .hero-inner{grid-template-columns:1fr;gap:36px}
  .hero-visual{min-height:240px}
  .hero-visual img{min-height:240px}
  .collection-card--wide h3{font-size:24px}
  .sec-title{font-size:28px}
}
@media (max-width:1023px){
  .sidenav{
    width:280px;
    transform:translateX(-100%);
    transition:transform var(--t-drawer) var(--ease);
    padding-top:18px;
    box-shadow:var(--elev-2);
  }
  .sidenav.open{transform:translateX(0)}
  .brand{justify-content:flex-start;padding:0 20px 20px}
  .brand-text{display:flex}
  .sidenav-nav{padding:12px 12px}
  .nav-item{
    flex-direction:row;
    height:46px;
    padding:0 12px;
    justify-content:flex-start;
    gap:12px;
    border-radius:10px;
    border-left-width:3px;
  }
  .nav-item .nav-idx{font-size:12px}
  .nav-item .nav-ico{font-size:15px}
  .nav-item .label{position:static;display:block;transform:none;background:none;border:0;padding:0;box-shadow:none;font-size:15px}
  .nav-item.is-active{box-shadow:none}
  .sidenav-foot{flex-direction:row;align-items:center;padding:14px 18px 0}
  .sidenav-foot .btn{width:auto;padding:0 14px}
  .sidenav-foot .btn .btn-txt{display:inline}
  .copy-mini{text-align:left}
  .mobilebar{display:flex}
  .main{margin-left:0;padding-top:56px}
  .section{padding:64px 0}
  .container{padding:0 24px}
  .strip-wrap{margin:0 -24px;padding:4px 24px 18px}
  .collection-card--wide{flex-direction:column}
  .collection-card--wide .card-media{flex:0 0 auto}
  .collection-card--wide .card-media img{aspect-ratio:16/9;min-height:0;height:auto}
  .collection-card--wide .card-body{padding:24px}
  .collection-card--wide h3{font-size:22px}
  .collection-card--wide .card-arrow{right:20px;bottom:20px}
  .pick-grid{grid-template-columns:1fr}
  .news-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .stats-band{grid-template-columns:repeat(2,minmax(0,1fr))}
  .proof-grid{grid-template-columns:1fr 1fr}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
}
@media (max-width:768px){
  h1{font-size:30px}
  .hero h1{font-size:30px}
  .hero{min-height:400px}
  .hero-inner{padding-top:56px;padding-bottom:56px;gap:28px}
  .hero-sub{font-size:15.5px}
  .hero-constellation{width:120px;height:120px;opacity:.6}
  .hero-visual{display:none}
  .sec-title{font-size:24px}
  .sec-head{flex-direction:column;align-items:flex-start;gap:16px;margin-bottom:28px}
  .collection-grid{grid-template-columns:1fr}
  .collection-card--wide{grid-column:span 1}
  .pick-thumb{flex:0 0 96px;width:96px;height:96px}
  .news-grid{grid-template-columns:1fr}
  .proof-grid{grid-template-columns:1fr}
  .faq-a{padding:0 20px 18px 20px}
  .faq-q{padding-right:16px;font-size:15.5px}
  .faq-q .faq-idx{padding-left:16px}
  .cta-strip{padding:26px 22px}
  .cta-text strong{font-size:19px}
  .cta-btns{width:100%}
  .cta-btns .btn{flex:1 1 auto}
  .footer{padding-top:52px}
  .footer-grid{grid-template-columns:1fr;gap:28px;padding-bottom:32px}
  .footer-bottom{flex-direction:column;align-items:flex-start;gap:8px}
  .btn{min-height:44px}
  .btn-sm{min-height:36px}
}
@media (max-width:520px){
  .container{padding:0 18px}
  .strip-wrap{margin:0 -18px;padding:4px 18px 18px}
  .hero-stats{gap:10px}
  .cap-stat{padding:10px 14px}
  .pick-item{flex-direction:column}
  .pick-thumb{width:100%;flex:0 0 auto;height:170px}
  .mini-card{flex:0 0 260px}
  .stat-num{font-size:26px}
  .stat-cell{padding:20px 16px}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation-duration:.001ms!important;animation-iteration-count:1!important;transition-duration:.001ms!important;scroll-behavior:auto!important}
}
.cap-stat{
  display:inline-flex;
  align-items:baseline;
  gap:8px;
  padding:12px 18px;
  border-radius:999px;
  border:1px solid var(--c-line);
  background:rgba(20,24,52,.72);
}
.cap-stat b{font-size:20px;font-weight:900;color:var(--c-primary);font-variant-numeric:tabular-nums}
.cap-stat span{font-size:12.5px;color:var(--c-text-3);letter-spacing:.04em}

/* roulang page: article */
:root{
  --c-bg:#080A18;
  --c-bg-2:#0E1126;
  --c-surface:#141834;
  --c-surface-2:#1B2044;
  --c-line:rgba(140,160,220,.16);
  --c-line-2:rgba(140,160,220,.28);
  --c-primary:#22D3C5;
  --c-primary-weak:rgba(34,211,197,.12);
  --c-primary-weak-2:rgba(34,211,197,.24);
  --c-accent:#FF3D7F;
  --c-accent-2:#FFC857;
  --c-text:#E9ECFA;
  --c-text-2:#A3AACD;
  --c-text-3:#6E7597;
  --c-ok:#35D07F;
  --c-err:#FF5C7A;
  --r-card:14px;
  --r-img:12px;
  --r-btn:10px;
  --r-input:10px;
  --r-pill:999px;
  --sh-1:0 12px 32px rgba(0,0,0,.45);
  --sh-2:0 18px 44px rgba(0,0,0,.55);
  --t-fast:160ms;
  --t-card:220ms;
  --t-drawer:260ms;
  --ease:cubic-bezier(.2,.7,.3,1);
  --sidenav-w:248px;
  --maxw:1280px;
}
*{box-sizing:border-box}
html,body{margin:0;padding:0}
body{
  background:var(--c-bg);
  color:var(--c-text);
  font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC",-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Helvetica,Arial,sans-serif;
  font-size:16px;
  line-height:1.8;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
button,input{font:inherit;color:inherit;background:none;border:none}
button{cursor:pointer}
ul,ol{margin:0;padding:0}
h1,h2,h3,h4,h5,p{margin:0}
time,.num,.nav-idx{font-variant-numeric:tabular-nums}
:focus-visible{outline:2px solid var(--c-primary);outline-offset:2px;border-radius:6px}
::selection{background:var(--c-primary-weak-2);color:#fff}
.skip{position:absolute;left:-9999px;top:0;background:var(--c-surface);padding:10px 16px;border-radius:8px;z-index:200}
.skip:focus{left:12px;top:12px}
.container{width:100%;max-width:var(--maxw);margin:0 auto;padding:0 24px}
.section{padding:72px 0}

/* ============ 移动端顶部条 ============ */
.topbar{
  display:none;
  position:fixed;left:0;right:0;top:0;height:56px;z-index:70;
  align-items:center;gap:12px;padding:0 14px;
  background:rgba(11,14,32,.94);
  border-bottom:1px solid var(--c-line);
  backdrop-filter:blur(6px);
}
.topbar-brand{display:flex;align-items:center;gap:8px;font-weight:800;font-size:15px;letter-spacing:.02em}
.topbar-title{margin-left:auto;font-size:13px;color:var(--c-text-3);max-width:42%;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.hamburger{
  width:40px;height:40px;border-radius:10px;border:1px solid var(--c-line-2);
  display:flex;align-items:center;justify-content:center;color:var(--c-text-2);
  transition:border-color var(--t-fast),color var(--t-fast);
}
.hamburger:hover{color:var(--c-primary);border-color:var(--c-primary)}

/* ============ 左侧 App Shell ============ */
.sidenav{
  position:fixed;left:0;top:0;bottom:0;width:var(--sidenav-w);z-index:60;
  display:flex;flex-direction:column;gap:20px;padding:24px 16px;
  background:linear-gradient(180deg,#0B0E20 0%,#080A18 100%);
  border-right:1px solid var(--c-line);
}
.sidenav-brand{display:flex;align-items:center;gap:10px;padding:0 8px 18px;border-bottom:1px solid var(--c-line)}
.brand-mark{
  width:34px;height:34px;flex:0 0 34px;border-radius:10px;
  display:flex;align-items:center;justify-content:center;
  background:radial-gradient(circle at 30% 25%,rgba(34,211,197,.45),rgba(255,61,127,.25) 70%,transparent);
  border:1px solid var(--c-line-2);color:var(--c-primary);font-size:15px;
}
.brand-text{font-weight:800;font-size:16px;letter-spacing:.02em;white-space:nowrap}
.sidenav-nav{display:flex;flex-direction:column;gap:6px;flex:1 1 auto}
.nav-item{
  position:relative;display:flex;align-items:center;gap:12px;
  padding:10px 12px;border-radius:10px;border-left:3px solid transparent;
  color:var(--c-text-2);font-size:15px;
  transition:background var(--t-fast) var(--ease),color var(--t-fast) var(--ease),transform var(--t-card) var(--ease);
}
.nav-item:hover{background:var(--c-primary-weak);color:var(--c-text);transform:translateX(2px)}
.nav-item.is-active{background:var(--c-primary-weak);color:var(--c-primary);border-left-color:var(--c-primary)}
.nav-idx{font-size:12px;color:var(--c-text-3);min-width:18px}
.nav-item.is-active .nav-idx{color:var(--c-primary)}
.nav-ico{width:20px;text-align:center;font-size:14px}
.sidenav-foot{display:flex;flex-direction:column;gap:10px;padding-top:16px;border-top:1px solid var(--c-line)}
.mini-actions{display:flex;gap:8px}
.sidenav-note{font-size:11.5px;color:var(--c-text-3);line-height:1.6}

/* ============ 抽屉 ============ */
.drawer-mask{
  position:fixed;inset:0;background:rgba(8,10,24,.72);z-index:79;
  opacity:0;visibility:hidden;transition:opacity var(--t-drawer) var(--ease),visibility var(--t-drawer);
}
.drawer-mask.is-open{opacity:1;visibility:visible}
.drawer{
  position:fixed;left:0;top:0;bottom:0;width:280px;z-index:80;
  display:flex;flex-direction:column;gap:20px;padding:20px 16px;
  background:linear-gradient(180deg,#0B0E20,#080A18);
  border-right:1px solid var(--c-line-2);
  transform:translateX(-100%);transition:transform var(--t-drawer) var(--ease);
}
.drawer.is-open{transform:translateX(0)}

/* ============ 主内容区 ============ */
.main-wrap{margin-left:var(--sidenav-w);min-height:100vh;display:flex;flex-direction:column}
.main-wrap main{flex:1 0 auto}

/* ============ 文章头部 ============ */
.article-hero{
  position:relative;overflow:hidden;
  border-bottom:1px solid var(--c-line);
  background:linear-gradient(180deg,rgba(8,10,24,.86),rgba(8,10,24,.96)),url('/assets/images/backpic/back-2.webp') center/cover no-repeat;
}
.article-hero::after{
  content:"";position:absolute;right:-60px;top:-40px;width:260px;height:260px;
  background:radial-gradient(circle,rgba(34,211,197,.18),transparent 68%);
  pointer-events:none;
}
.article-hero .container{position:relative;z-index:2;padding-top:22px;padding-bottom:38px}
.breadcrumb{display:flex;align-items:center;gap:8px;font-size:14px;color:var(--c-text-3);flex-wrap:wrap}
.breadcrumb a{color:var(--c-text-2);transition:color var(--t-fast)}
.breadcrumb a:hover{color:var(--c-primary)}
.breadcrumb .sep{color:var(--c-text-3);opacity:.7}
.breadcrumb .current{color:var(--c-text-3);max-width:60%;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.article-head{margin-top:26px;max-width:880px}
.badge{
  display:inline-flex;align-items:center;gap:6px;
  padding:4px 12px;border-radius:var(--r-pill);
  font-size:12.5px;line-height:1.6;
  border:1px solid var(--c-primary-weak-2);background:var(--c-primary-weak);color:var(--c-primary);
}
.badge-accent{border-color:rgba(255,61,127,.32);background:rgba(255,61,127,.12);color:var(--c-accent)}
.article-head h1{
  margin:16px 0 0;font-size:clamp(26px,3.4vw,40px);font-weight:900;line-height:1.35;letter-spacing:.01em;
}
.article-meta{
  display:flex;align-items:center;gap:14px;flex-wrap:wrap;
  margin-top:20px;font-size:13.5px;color:var(--c-text-3);
}
.article-meta time,.article-meta .num{color:var(--c-text-2)}
.meta-dot{width:4px;height:4px;border-radius:50%;background:var(--c-accent-2);opacity:.8}

/* ============ 正文网格 ============ */
.article-shell{padding:56px 0 72px}
.article-grid{
  display:grid;grid-template-columns:minmax(0,1fr) 220px;gap:48px;
  max-width:1080px;margin:0 auto;
}
.article-main{min-width:0}
.prose{
  font-size:17px;line-height:1.9;color:var(--c-text);
  max-width:800px;
}
.prose > *:first-child{margin-top:0}
.prose p{margin:0 0 1.2em}
.prose h2{font-size:26px;font-weight:800;line-height:1.45;margin:48px 0 16px;letter-spacing:.01em}
.prose h3{font-size:20px;font-weight:800;line-height:1.5;margin:32px 0 12px}
.prose h4{font-size:17px;font-weight:800;margin:24px 0 10px;color:var(--c-text-2)}
.prose ul,.prose ol{margin:0 0 1.3em;padding-left:1.4em}
.prose li{margin:.4em 0}
.prose ul li{list-style:square}
.prose ul li::marker{color:var(--c-primary)}
.prose ol li::marker{color:var(--c-primary);font-variant-numeric:tabular-nums}
.prose a{color:var(--c-primary);text-decoration:underline;text-underline-offset:3px;text-decoration-thickness:1px}
.prose a:hover{color:#5CE7DC}
.prose strong{font-weight:800;color:#fff}
.prose blockquote{
  margin:24px 0;padding:16px 22px;border-left:3px solid var(--c-primary);
  background:var(--c-surface);border-radius:0 12px 12px 0;color:var(--c-text-2);font-size:16px;
}
.prose blockquote p:last-child{margin-bottom:0}
.prose pre{
  margin:24px 0;padding:16px 18px;overflow-x:auto;
  background:#06080F;border:1px solid var(--c-line);border-radius:12px;
  font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;font-size:14px;line-height:1.7;
}
.prose code{
  font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;font-size:.92em;
  background:var(--c-surface-2);border:1px solid var(--c-line);border-radius:6px;padding:2px 6px;color:#9DF3EA;
}
.prose pre code{background:none;border:none;padding:0;color:var(--c-text-2)}
.prose img{border-radius:12px;margin:28px auto;max-width:100%;height:auto;border:1px solid var(--c-line)}
.prose figure{margin:28px 0}
.prose figcaption{font-size:13px;color:var(--c-text-3);text-align:center;margin-top:10px}
.prose table{width:100%;border-collapse:collapse;margin:24px 0;font-size:15px;overflow:hidden;border-radius:12px}
.prose th,.prose td{padding:11px 14px;border:1px solid var(--c-line);text-align:left}
.prose th{background:var(--c-surface-2);color:var(--c-text);font-weight:700;font-size:14px}
.prose tbody tr:nth-child(odd) td{background:var(--c-surface)}
.prose tbody tr:nth-child(even) td{background:#111531}
.prose hr{border:none;height:1px;background:var(--c-line);margin:40px 0}

/* 空态 */
.empty-state{
  border:1px dashed var(--c-line-2);background:var(--c-surface);border-radius:var(--r-card);
  padding:48px 28px;text-align:center;
}
.empty-state .empty-icon{font-size:26px;color:var(--c-text-3);margin-bottom:14px}
.empty-title{font-size:19px;font-weight:800;margin-bottom:8px}
.empty-desc{color:var(--c-text-2);font-size:15px;margin-bottom:22px}

/* ============ 右侧目录 ============ */
.toc{position:sticky;top:32px;align-self:start;font-size:14px}
.toc-title{
  display:flex;align-items:center;gap:8px;font-size:12.5px;letter-spacing:.14em;
  color:var(--c-text-3);text-transform:uppercase;margin-bottom:14px;
}
.toc-title::before{content:"";width:16px;height:1px;background:var(--c-accent-2);opacity:.8}
.toc-list{list-style:none;border-left:1px solid var(--c-line);padding-left:0}
.toc-list li{margin:0}
.toc-list a{
  display:block;padding:7px 0 7px 14px;color:var(--c-text-3);font-size:13.5px;line-height:1.6;
  border-left:2px solid transparent;margin-left:-1px;transition:color var(--t-fast),border-color var(--t-fast);
}
.toc-list a:hover{color:var(--c-text)}
.toc-list a.is-active{color:var(--c-primary);border-left-color:var(--c-primary)}
.toc-list .lvl-3 a{padding-left:26px;font-size:13px}
.toc-toggle{display:none}

/* ============ 标签行 ============ */
.tag-row{display:flex;flex-wrap:wrap;gap:10px;margin-top:40px;padding-top:24px;border-top:1px solid var(--c-line)}
.tag{
  display:inline-flex;align-items:center;gap:6px;padding:5px 13px;border-radius:var(--r-pill);
  font-size:13px;border:1px solid var(--c-line-2);background:var(--c-surface);color:var(--c-text-2);
  transition:border-color var(--t-fast),color var(--t-fast),background var(--t-fast);
}
.tag:hover{border-color:var(--c-primary);color:var(--c-primary);background:var(--c-primary-weak)}
.tag-gold{border-color:rgba(255,200,87,.35);color:var(--c-accent-2)}

/* ============ CTA 星轨条 ============ */
.cta-bar{
  margin-top:32px;padding:20px 22px;border-radius:var(--r-card);
  border:1px solid var(--c-line);background:linear-gradient(90deg,rgba(34,211,197,.10),rgba(20,24,52,.6) 55%,rgba(255,61,127,.10));
  display:flex;align-items:center;justify-content:space-between;gap:18px;flex-wrap:wrap;
}
.cta-bar p{font-size:14.5px;color:var(--c-text-2)}
.cta-actions{display:flex;gap:10px;flex-wrap:wrap}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:42px;padding:0 20px;border-radius:var(--r-btn);
  font-size:14.5px;font-weight:600;line-height:1;
  transition:background var(--t-fast) var(--ease),color var(--t-fast) var(--ease),border-color var(--t-fast) var(--ease),box-shadow var(--t-fast) var(--ease),transform var(--t-fast) var(--ease);
}
.btn:active{transform:scale(.98)}
.btn-primary{background:var(--c-primary);color:#06121A}
.btn-primary:hover{background:#3FE0D3;box-shadow:0 0 0 1px var(--c-primary),0 0 12px rgba(34,211,197,.45)}
.btn-ghost{border:1px solid var(--c-line-2);color:var(--c-text-2)}
.btn-ghost:hover{border-color:var(--c-primary);background:var(--c-primary-weak);color:var(--c-primary)}
.btn-sm{height:32px;padding:0 14px;font-size:13px;border-radius:8px}
.btn-lg{height:50px;padding:0 26px;font-size:16px}
.link-more{
  display:inline-flex;align-items:center;gap:6px;font-size:14px;color:var(--c-text-2);
  transition:color var(--t-fast);
}
.link-more:hover{color:var(--c-primary)}

/* ============ 相关推荐 ============ */
.related{margin-top:64px;padding-top:40px;border-top:1px solid var(--c-line)}
.sec-head{display:flex;align-items:flex-end;justify-content:space-between;gap:16px;margin-bottom:24px;flex-wrap:wrap}
.sec-head h2{font-size:26px;font-weight:800;letter-spacing:.01em}
.sec-head .sec-sub{font-size:14px;color:var(--c-text-3);margin-top:6px}
.grid-3{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px}
.reco-card{
  display:flex;flex-direction:column;overflow:hidden;
  background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-card);
  transition:border-color var(--t-card) var(--ease),box-shadow var(--t-card) var(--ease),transform var(--t-card) var(--ease);
}
.reco-card:hover{border-color:var(--c-primary-weak-2);box-shadow:var(--sh-2);transform:translateY(-3px)}
.reco-thumb{aspect-ratio:16/9;overflow:hidden;border-bottom:1px solid var(--c-line)}
.reco-thumb img{width:100%;height:100%;object-fit:cover;transition:transform var(--t-card) var(--ease)}
.reco-card:hover .reco-thumb img{transform:scale(1.04)}
.reco-body{padding:18px;display:flex;flex-direction:column;gap:10px}
.reco-body h3{font-size:17px;font-weight:700;line-height:1.5}
.reco-body p{font-size:14px;color:var(--c-text-2);line-height:1.7;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}

/* ============ 返回行 ============ */
.back-row{margin-top:32px;display:flex;gap:12px;flex-wrap:wrap}

/* ============ 浮层提示 ============ */
.toast{
  position:fixed;left:50%;bottom:28px;transform:translate(-50%,16px);
  padding:12px 20px;border-radius:var(--r-btn);font-size:14px;
  background:var(--c-surface-2);border:1px solid var(--c-line-2);color:var(--c-text);
  box-shadow:var(--sh-1);opacity:0;visibility:hidden;
  transition:opacity var(--t-fast),transform var(--t-fast),visibility var(--t-fast);z-index:200;
}
.toast.is-show{opacity:1;visibility:visible;transform:translate(-50%,0)}
.toast.is-ok{border-color:var(--c-ok)}
.toast.is-err{border-color:var(--c-err)}

/* ============ 页脚 ============ */
.footer{border-top:1px solid var(--c-line);background:linear-gradient(180deg,#0A0D1E,#07090F);margin-top:24px}
.footer::before{content:"";display:block;height:1px;background:linear-gradient(90deg,transparent,rgba(34,211,197,.55),transparent)}
.footer-grid{
  display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:36px;
  padding:56px 0 36px;
}
.footer-brand .brand-name{font-size:18px;font-weight:900;letter-spacing:.02em;display:block;margin-bottom:12px}
.footer-brand p{font-size:14px;color:var(--c-text-2);line-height:1.8;max-width:360px}
.footer h5{font-size:13px;letter-spacing:.14em;color:var(--c-text-3);margin-bottom:16px;font-weight:700}
.footer-links{display:flex;flex-direction:column;gap:10px}
.footer-links a{font-size:14px;color:var(--c-text-2);transition:color var(--t-fast)}
.footer-links a:hover{color:var(--c-primary)}
.footer-bottom{
  display:flex;align-items:center;justify-content:space-between;gap:12px;flex-wrap:wrap;
  padding:20px 0 28px;border-top:1px solid var(--c-line);font-size:13px;color:var(--c-text-3);
}
.footer-bottom .dot{margin:0 8px;opacity:.6}

/* ============ 响应式 ============ */
@media (max-width:1279px){
  :root{--sidenav-w:80px}
  .sidenav{padding:20px 12px;align-items:center}
  .sidenav-brand{padding:0 0 16px;justify-content:center;width:100%}
  .brand-text{display:none}
  .nav-item{justify-content:center;padding:11px 0;width:100%;gap:8px}
  .nav-item .label{
    position:absolute;left:calc(100% + 12px);top:50%;white-space:nowrap;
    transform:translateY(-50%) translateX(-6px);opacity:0;pointer-events:none;
    background:var(--c-surface);border:1px solid var(--c-line-2);border-radius:8px;
    padding:6px 12px;font-size:13px;color:var(--c-text);
    transition:opacity var(--t-fast) var(--ease),transform var(--t-fast) var(--ease);
  }
  .nav-item:hover .label,.nav-item:focus-visible .label{opacity:1;transform:translateY(-50%) translateX(0)}
  .nav-idx,.nav-ico{min-width:0}
  .sidenav-foot{align-items:center;width:100%}
  .mini-actions{flex-direction:column;width:100%}
  .mini-actions .btn{width:100%;padding:0 8px;font-size:12px}
  .sidenav-note{display:none}
  .article-grid{grid-template-columns:minmax(0,1fr) 200px;gap:32px}
}
@media (max-width:1199px){
  .article-grid{grid-template-columns:minmax(0,1fr);max-width:840px}
  .toc{display:none}
  .toc-toggle{
    display:flex;align-items:center;gap:10px;width:100%;
    padding:12px 16px;margin-bottom:24px;
    background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-btn);
    color:var(--c-text-2);font-size:14px;transition:border-color var(--t-fast),color var(--t-fast);
  }
  .toc-toggle:hover{border-color:var(--c-primary);color:var(--c-primary)}
  .toc-mobile{display:none;margin:-8px 0 26px;padding:14px 18px;background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-card)}
  .toc-mobile.is-open{display:block}
  .toc-mobile a{display:block;padding:6px 0;font-size:14px;color:var(--c-text-2)}
  .toc-mobile a:hover{color:var(--c-primary)}
}
@media (max-width:1023px){
  .sidenav{display:none}
  .topbar{display:flex}
  .main-wrap{margin-left:0;padding-top:56px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px}
  .section{padding:56px 0}
  .article-shell{padding:40px 0 56px}
}
@media (max-width:767px){
  .container{padding:0 18px}
  .prose{font-size:15.5px;line-height:1.85}
  .prose h2{font-size:22px;margin-top:36px}
  .prose h3{font-size:18px}
  .article-hero .container{padding-top:18px;padding-bottom:28px}
  .article-meta{gap:10px;font-size:13px}
  .grid-3{grid-template-columns:1fr}
  .cta-bar{flex-direction:column;align-items:flex-start}
  .cta-actions{width:100%}
  .cta-actions .btn{flex:1 1 auto;min-height:44px}
  .btn{min-height:44px}
  .btn-sm{min-height:36px}
  .footer-grid{grid-template-columns:1fr;gap:24px;padding:40px 0 28px}
  .footer-bottom{flex-direction:column;align-items:flex-start}
}
@media (max-width:479px){
  .sec-head h2{font-size:22px}
  .article-head h1{font-size:25px}
  .badge{font-size:12px}
}
@media (prefers-reduced-motion:reduce){
  *{animation:none !important;transition:none !important;scroll-behavior:auto !important}
}

/* roulang page: category1 */
/* ===== 设计变量 ===== */
:root{
  --c-bg:#080A18;
  --c-bg-2:#0E1126;
  --c-surface:#141834;
  --c-surface-2:#1B2044;
  --c-line:rgba(140,160,220,.16);
  --c-line-strong:rgba(140,160,220,.28);
  --c-primary:#22D3C5;
  --c-primary-12:rgba(34,211,197,.12);
  --c-primary-24:rgba(34,211,197,.24);
  --c-accent:#FF3D7F;
  --c-accent-2:#FFC857;
  --c-cat:#1FD6E0;
  --c-cat-12:rgba(31,214,224,.12);
  --c-cat-24:rgba(31,214,224,.24);
  --c-cat-40:rgba(31,214,224,.40);
  --c-text:#E9ECFA;
  --c-text-2:#A3AACD;
  --c-text-3:#6E7597;
  --c-ok:#35D07F;
  --c-warn:#FFB020;
  --c-err:#FF5C7A;
  --r-card:14px;
  --r-img:12px;
  --r-btn:10px;
  --sh-1:0 12px 32px rgba(0,0,0,.45);
  --sh-2:0 18px 44px rgba(0,0,0,.55);
  --ease:cubic-bezier(.2,.7,.3,1);
  --nav-w:248px;
  --font:"PingFang SC","Microsoft YaHei","Noto Sans SC","Hiragino Sans GB",system-ui,-apple-system,"Segoe UI",sans-serif;
}
/* ===== reset / base ===== */
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  background:var(--c-bg);
  color:var(--c-text);
  font-family:var(--font);
  font-size:16px;
  line-height:1.8;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}
h1,h2,h3,h4,h5{margin:0;font-weight:800;line-height:1.3;letter-spacing:.01em}
p{margin:0}
a{color:inherit;text-decoration:none}
img{display:block;max-width:100%;height:auto}
ul,ol{margin:0;padding:0;list-style:none}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer}
input,textarea{font:inherit}
:focus-visible{outline:2px solid var(--c-cat);outline-offset:2px;border-radius:6px}
::selection{background:var(--c-cat-24);color:#fff}
.num{font-variant-numeric:tabular-nums;font-feature-settings:"tnum" 1}
.container{width:100%;max-width:1280px;margin:0 auto;padding:0 32px}
.section{padding:88px 0;border-top:1px solid var(--c-line)}
.section--alt{background:var(--c-bg-2)}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:36px}
.section-head h2{font-size:32px;font-weight:900}
.section-head .sub{margin-top:10px;color:var(--c-text-2);font-size:15px;max-width:62ch}
.eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:12px;letter-spacing:.06em;color:var(--c-cat);text-transform:uppercase;margin-bottom:14px}
.eyebrow::before{content:"";width:18px;height:1px;background:var(--c-cat)}
.muted{color:var(--c-text-2)}
.dot{opacity:.5;margin:0 8px}

/* ===== 左侧 App Shell ===== */
.sidenav{
  position:fixed;top:0;left:0;bottom:0;width:var(--nav-w);
  background:linear-gradient(180deg,#0A0D1E 0%,#080A18 100%);
  border-right:1px solid var(--c-line);
  display:flex;flex-direction:column;
  padding:24px 18px 20px;
  z-index:60;
}
.brand{display:flex;align-items:center;gap:12px;padding:0 6px 22px;border-bottom:1px solid var(--c-line)}
.brand-mark{
  position:relative;width:38px;height:38px;flex:0 0 38px;border-radius:12px;
  background:radial-gradient(circle at 30% 28%,rgba(31,214,224,.35),transparent 62%),var(--c-surface);
  border:1px solid var(--c-cat-40);
  display:grid;place-items:center;color:var(--c-cat);font-size:16px;
}
.brand-mark::after{
  content:"";position:absolute;right:5px;top:5px;width:4px;height:4px;border-radius:50%;
  background:var(--c-accent-2);box-shadow:0 0 8px var(--c-accent-2);
}
.brand-text{display:flex;flex-direction:column;min-width:0}
.brand-name{font-size:15px;font-weight:900;letter-spacing:.01em;white-space:nowrap}
.brand-sub{font-size:11px;color:var(--c-text-3);margin-top:2px;letter-spacing:.04em}
.sidenav-nav{display:flex;flex-direction:column;gap:6px;margin-top:20px;flex:1 1 auto}
.nav-item{
  position:relative;display:grid;grid-template-columns:26px 22px 1fr;align-items:center;gap:10px;
  padding:11px 12px;border-radius:10px;color:var(--c-text-2);font-size:14px;
  transition:background .16s var(--ease),color .16s var(--ease),transform .16s var(--ease);
}
.nav-idx{font-size:11px;color:var(--c-text-3);letter-spacing:.04em}
.nav-ico{display:grid;place-items:center;font-size:14px}
.nav-item:hover{background:rgba(140,160,220,.08);color:var(--c-text)}
.nav-item:active{transform:translateY(1px)}
.nav-item.is-active{background:var(--c-cat-12);color:var(--c-cat)}
.nav-item.is-active .nav-idx{color:var(--c-cat)}
.nav-item.is-active::before{content:"";position:absolute;left:0;top:8px;bottom:8px;width:3px;border-radius:3px;background:var(--c-cat)}
.sidenav-foot{margin-top:16px;padding-top:16px;border-top:1px solid var(--c-line);display:flex;flex-direction:column;gap:10px}
.mini-actions{display:flex;gap:8px}
.mini-btn{
  flex:1 1 0;display:inline-flex;align-items:center;justify-content:center;gap:6px;
  height:32px;border-radius:9px;border:1px solid var(--c-line-strong);
  font-size:12px;color:var(--c-text-2);background:transparent;
  transition:border-color .16s var(--ease),color .16s var(--ease),background .16s var(--ease);
}
.mini-btn:hover{border-color:var(--c-cat-40);color:var(--c-cat);background:var(--c-cat-12)}
.mini-btn:active{transform:scale(.98)}
.sidenav-copy{font-size:11px;color:var(--c-text-3);line-height:1.6}

/* ===== 移动端顶栏 + 抽屉 ===== */
.topbar{display:none}
.drawer{position:fixed;top:0;left:0;bottom:0;width:280px;background:#0A0D1E;border-right:1px solid var(--c-line);
  padding:20px 16px;transform:translateX(-104%);transition:transform .26s var(--ease);z-index:90;display:flex;flex-direction:column}
.drawer.is-open{transform:translateX(0)}
.drawer-mask{position:fixed;inset:0;background:rgba(8,10,24,.72);opacity:0;visibility:hidden;transition:opacity .26s var(--ease),visibility .26s var(--ease);z-index:80}
.drawer-mask.is-open{opacity:1;visibility:visible}
.drawer-nav{display:flex;flex-direction:column;gap:6px;margin-top:18px}
.drawer-foot{margin-top:auto;padding-top:16px;border-top:1px solid var(--c-line);font-size:11px;color:var(--c-text-3)}

/* ===== 主区域 ===== */
.shell-main{margin-left:var(--nav-w);min-height:100vh}
#page-top{display:block;height:0}

/* ===== 分类 Hero ===== */
.cat-hero{position:relative;overflow:hidden;background:var(--c-bg-2);border-bottom:1px solid var(--c-line)}
.cat-hero-bg{
  position:absolute;inset:0;
  background-image:url(/assets/images/backpic/back-1.png);
  background-size:cover;background-position:center right;
  opacity:.30;
}
.cat-hero-bg::after{content:"";position:absolute;inset:0;background:linear-gradient(100deg,#080A18 8%,rgba(8,10,24,.86) 46%,rgba(8,10,24,.58) 100%)}
.cat-hero-stars{
  position:absolute;top:18px;right:24px;width:240px;height:150px;pointer-events:none;opacity:.7;
  background-image:radial-gradient(circle,rgba(233,236,250,.75) 1px,transparent 1.6px);
  background-size:46px 40px;
  animation:breathe 9s ease-in-out infinite;
}
@keyframes breathe{0%,100%{opacity:.34}50%{opacity:.78}}
.cat-hero-inner{position:relative;padding:34px 0 54px;display:grid;grid-template-columns:1fr 400px;gap:48px;align-items:center}
.breadcrumb{display:flex;align-items:center;gap:6px;font-size:14px;color:var(--c-text-3);margin-bottom:22px}
.breadcrumb a{color:var(--c-text-2)}
.breadcrumb a:hover{color:var(--c-cat)}
.breadcrumb .sep{color:var(--c-text-3)}
.breadcrumb .current{color:var(--c-text-3)}
.hero-badge{
  display:inline-flex;align-items:center;gap:8px;height:30px;padding:0 14px;border-radius:999px;
  border:1px solid var(--c-cat-40);background:var(--c-cat-12);color:var(--c-cat);
  font-size:12.5px;font-weight:700;letter-spacing:.02em;margin-bottom:18px;
}
.cat-hero h1{font-size:48px;font-weight:900;line-height:1.15}
.cat-hero h1 span{display:block;font-size:15px;font-weight:600;color:var(--c-text-2);margin-top:14px;letter-spacing:.02em}
.hero-lead{margin-top:20px;color:var(--c-text-2);font-size:16px;line-height:1.9;max-width:56ch}
.hero-tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:24px}
.tag{
  display:inline-flex;align-items:center;gap:7px;height:30px;padding:0 13px;border-radius:999px;
  border:1px solid var(--c-line-strong);background:rgba(27,32,68,.6);color:var(--c-text-2);font-size:13px;
}
.tag i{font-size:11px;color:var(--c-cat)}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:30px}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:9px;
  height:42px;padding:0 22px;border-radius:var(--r-btn);font-size:14.5px;font-weight:700;
  transition:transform .16s var(--ease),background .16s var(--ease),color .16s var(--ease),border-color .16s var(--ease),box-shadow .16s var(--ease);
  white-space:nowrap;
}
.btn-primary{background:var(--c-cat);color:#06121A;box-shadow:0 0 0 0 rgba(31,214,224,0)}
.btn-primary:hover{filter:brightness(1.08);box-shadow:0 0 0 1px var(--c-cat),0 0 12px rgba(31,214,224,.45)}
.btn-primary:active{transform:scale(.98)}
.btn-ghost{border:1px solid var(--c-line-strong);color:var(--c-text);background:transparent}
.btn-ghost:hover{border-color:var(--c-cat-40);background:var(--c-cat-12);color:var(--c-cat)}
.btn-ghost:active{transform:scale(.98)}
.btn-lg{height:50px;padding:0 26px;font-size:15px}
.btn-sm{height:32px;padding:0 14px;font-size:13px}
.link-btn{display:inline-flex;align-items:center;gap:6px;color:var(--c-text-2);font-size:14px;position:relative;padding-bottom:2px}
.link-btn::after{content:"";position:absolute;left:0;bottom:0;height:1px;width:0;background:var(--c-cat);transition:width .2s var(--ease)}
.link-btn:hover{color:var(--c-cat)}
.link-btn:hover::after{width:100%}
.hero-visual{border-radius:var(--r-card);overflow:hidden;border:1px solid var(--c-line-strong);box-shadow:var(--sh-1);position:relative}
.hero-visual img{width:100%;aspect-ratio:16/10;object-fit:cover}
.hero-visual figcaption{
  position:absolute;left:14px;bottom:12px;font-size:12px;color:#DCE3FF;
  background:rgba(8,10,24,.72);border:1px solid var(--c-line-strong);padding:5px 10px;border-radius:999px;
}

/* ===== 数据指标条 ===== */
.metrics{background:var(--c-bg-2);border-bottom:1px solid var(--c-line)}
.metrics-grid{display:grid;grid-template-columns:repeat(4,1fr)}
.metric{padding:30px 26px;border-right:1px solid var(--c-line)}
.metric:last-child{border-right:0}
.metric .k{display:block;font-size:30px;font-weight:900;color:var(--c-cat);letter-spacing:.01em}
.metric .k small{font-size:14px;font-weight:700;color:var(--c-text-2);margin-left:4px}
.metric .v{display:block;margin-top:8px;font-size:13.5px;color:var(--c-text-3)}

/* ===== 长条条目列表 ===== */
.item-list{display:flex;flex-direction:column;gap:18px}
.item-card{
  display:grid;grid-template-columns:168px 1fr;gap:22px;align-items:stretch;
  background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-card);
  padding:16px;transition:border-color .22s var(--ease),box-shadow .22s var(--ease),transform .22s var(--ease);
}
.item-card:hover{border-color:var(--c-cat-40);box-shadow:var(--sh-2);transform:translateY(-3px)}
.item-thumb{border-radius:var(--r-img);overflow:hidden;background:var(--c-surface-2)}
.item-thumb img{width:100%;height:100%;aspect-ratio:4/3;object-fit:cover;transition:transform .22s var(--ease)}
.item-card:hover .item-thumb img{transform:scale(1.04)}
.item-body{display:flex;flex-direction:column;gap:10px;padding:4px 6px 4px 0}
.item-body h3{font-size:22px;font-weight:800}
.item-body h3 a:hover{color:var(--c-cat)}
.item-body p{color:var(--c-text-2);font-size:15px;line-height:1.8;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.item-meta{display:flex;flex-wrap:wrap;align-items:center;gap:14px;margin-top:auto;font-size:13px;color:var(--c-text-3)}
.badge{
  display:inline-flex;align-items:center;height:24px;padding:0 10px;border-radius:999px;
  font-size:12px;font-weight:700;border:1px solid var(--c-cat-40);background:var(--c-cat-12);color:var(--c-cat);
}
.badge--accent{border-color:rgba(255,61,127,.4);background:rgba(255,61,127,.12);color:#FF7BA8}
.badge--gold{border-color:rgba(255,200,87,.42);background:rgba(255,200,87,.1);color:var(--c-accent-2)}

/* ===== 覆盖内容卡 ===== */
.cover-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:20px}
.cover-card{
  background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-card);
  padding:26px;display:flex;gap:18px;transition:border-color .22s var(--ease),transform .22s var(--ease),box-shadow .22s var(--ease);
}
.cover-card:hover{border-color:var(--c-cat-40);transform:translateY(-3px);box-shadow:var(--sh-2)}
.cover-ico{
  flex:0 0 46px;height:46px;border-radius:12px;display:grid;place-items:center;
  background:var(--c-surface-2);border:1px solid var(--c-line-strong);color:var(--c-cat);font-size:17px;
}
.cover-card h3{font-size:18px;margin-bottom:8px}
.cover-card p{color:var(--c-text-2);font-size:14.5px;line-height:1.85}
.cover-card .lines{margin-top:12px;display:flex;flex-wrap:wrap;gap:8px}
.chip{font-size:12px;color:var(--c-text-3);border:1px solid var(--c-line);border-radius:999px;padding:3px 10px}

/* ===== 时间线 ===== */
.timeline{position:relative;display:flex;flex-direction:column;gap:0;border-left:1px solid var(--c-line-strong);margin-left:8px}
.tl-item{position:relative;padding:0 0 30px 26px}
.tl-item:last-child{padding-bottom:0}
.tl-item::before{
  content:"";position:absolute;left:-5px;top:8px;width:9px;height:9px;border-radius:50%;
  background:var(--c-bg);border:2px solid var(--c-cat);
}
.tl-date{font-size:13px;color:var(--c-accent-2);letter-spacing:.06em}
.tl-item h3{font-size:18px;margin:8px 0 6px}
.tl-item p{color:var(--c-text-2);font-size:14.5px}
.tl-wrap{display:grid;grid-template-columns:minmax(0,1.35fr) minmax(0,1fr);gap:56px;align-items:start}
.aside-card{
  background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-card);padding:24px;box-shadow:var(--sh-1);
}
.aside-card h3{font-size:18px;margin-bottom:14px}
.aside-list{display:flex;flex-direction:column;gap:12px}
.aside-list li{display:flex;gap:10px;font-size:14.5px;color:var(--c-text-2);line-height:1.75}
.aside-list i{color:var(--c-cat);font-size:12px;margin-top:8px}
.aside-visual{margin-top:20px;border-radius:var(--r-img);overflow:hidden;border:1px solid var(--c-line)}
.aside-visual img{width:100%;aspect-ratio:16/9;object-fit:cover}

/* ===== 横向卡带 ===== */
.rail{display:flex;gap:18px;overflow-x:auto;padding:4px 4px 16px;scroll-snap-type:x mandatory}
.rail::-webkit-scrollbar{height:8px}
.rail::-webkit-scrollbar-track{background:var(--c-surface);border-radius:999px}
.rail::-webkit-scrollbar-thumb{background:rgba(140,160,220,.35);border-radius:999px}
.mini-card{
  flex:0 0 296px;scroll-snap-align:start;background:var(--c-surface);border:1px solid var(--c-line);
  border-radius:var(--r-card);overflow:hidden;transition:border-color .22s var(--ease),transform .22s var(--ease),box-shadow .22s var(--ease);
}
.mini-card:hover{border-color:var(--c-cat-40);transform:translateY(-3px);box-shadow:var(--sh-2)}
.mini-card img{width:100%;aspect-ratio:16/9;object-fit:cover}
.mini-body{padding:18px 18px 20px}
.mini-body h3{font-size:17px;margin-bottom:8px}
.mini-body h3 a:hover{color:var(--c-cat)}
.mini-body p{font-size:14px;color:var(--c-text-2);line-height:1.75;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.mini-foot{margin-top:14px;display:flex;align-items:center;justify-content:space-between;font-size:12.5px;color:var(--c-text-3)}

/* ===== CTA 星轨条 ===== */
.cta-bar{
  position:relative;overflow:hidden;border-radius:var(--r-card);
  border:1px solid var(--c-cat-24);
  background:linear-gradient(120deg,rgba(31,214,224,.10),rgba(20,24,52,.9) 46%,rgba(255,61,127,.08));
  padding:38px 34px;display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:26px;
}
.cta-bar::before{
  content:"";position:absolute;left:0;right:0;top:0;height:1px;
  background:linear-gradient(90deg,transparent,var(--c-cat-40),rgba(255,200,87,.5),transparent);
}
.cta-bar h2{font-size:24px;margin-bottom:8px}
.cta-bar p{color:var(--c-text-2);font-size:14.5px;max-width:56ch}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px}

/* ===== FAQ ===== */
.faq-list{display:flex;flex-direction:column;gap:14px}
.faq-item{background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-card);overflow:hidden}
.faq-q{
  width:100%;display:flex;align-items:center;gap:16px;padding:0 22px;height:56px;
  text-align:left;font-size:16px;font-weight:700;color:var(--c-text);position:relative;
  transition:background .16s var(--ease),color .16s var(--ease);
}
.faq-q::before{content:"";position:absolute;left:0;top:0;bottom:0;width:4px;background:var(--c-cat);opacity:.85}
.faq-q:hover{background:rgba(140,160,220,.06)}
.faq-q .idx{font-size:12px;color:var(--c-cat);letter-spacing:.06em}
.faq-q .txt{flex:1 1 auto}
.faq-q .caret{color:var(--c-text-3);font-size:13px;transition:transform .22s var(--ease)}
.faq-item.is-open .faq-q{color:var(--c-cat)}
.faq-item.is-open .caret{transform:rotate(180deg);color:var(--c-cat)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .26s var(--ease);background:#101427}
.faq-a .inner{padding:20px 24px 22px 44px;color:var(--c-text-2);font-size:15px;line-height:1.85}
.faq-item.is-open .faq-a{max-height:320px}

/* ===== 页脚 ===== */
.footer{background:#06080F;border-top:1px solid var(--c-line);position:relative}
.footer::before{
  content:"";position:absolute;top:-1px;left:0;right:0;height:1px;
  background:linear-gradient(90deg,transparent,rgba(31,214,224,.55),rgba(255,200,87,.45),transparent);
}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:40px;padding:64px 0 44px}
.footer-brand strong{display:block;font-size:18px;font-weight:900;margin-bottom:14px}
.footer-brand p{color:var(--c-text-2);font-size:14px;line-height:1.85;max-width:38ch}
.footer h5{font-size:14px;font-weight:800;margin-bottom:16px;color:var(--c-text)}
.footer-links{display:flex;flex-direction:column;gap:10px}
.footer-links a{color:var(--c-text-3);font-size:14px;transition:color .16s var(--ease)}
.footer-links a:hover{color:var(--c-cat)}
.footer-bottom{
  border-top:1px solid var(--c-line);padding:20px 0 28px;display:flex;flex-wrap:wrap;gap:12px;
  justify-content:space-between;color:var(--c-text-3);font-size:13px;
}

/* ===== toast ===== */
.toast{
  position:fixed;left:50%;bottom:28px;transform:translate(-50%,16px);
  background:var(--c-surface-2);border:1px solid var(--c-ok);color:var(--c-text);
  padding:12px 20px;border-radius:12px;font-size:14px;box-shadow:var(--sh-2);
  opacity:0;visibility:hidden;transition:opacity .24s var(--ease),transform .24s var(--ease),visibility .24s var(--ease);z-index:120;
}
.toast.is-show{opacity:1;visibility:visible;transform:translate(-50%,0)}
.toast.is-error{border-color:var(--c-err)}

/* ===== 响应式 ===== */
@media (max-width:1279px){
  :root{--nav-w:80px}
  .sidenav{width:80px;padding:20px 10px 16px;align-items:center}
  .brand{flex-direction:column;gap:8px;padding:0 0 18px;width:100%;align-items:center}
  .brand-text{display:none}
  .sidenav-nav{width:100%;gap:8px}
  .nav-item{grid-template-columns:1fr;gap:5px;justify-items:center;padding:10px 4px;font-size:10px;text-align:center}
  .nav-idx{display:none}
  .nav-ico{font-size:15px}
  .sidenav-foot{width:100%}
  .mini-actions{flex-direction:column}
  .mini-btn{font-size:11px;padding:0 4px}
  .sidenav-copy{text-align:center;font-size:10px}
  .cat-hero-inner{grid-template-columns:1fr 340px;gap:32px}
  .cat-hero h1{font-size:42px}
}
@media (max-width:1023px){
  .sidenav{display:none}
  .shell-main{margin-left:0;padding-top:56px}
  .topbar{
    display:grid;grid-template-columns:1fr auto 1fr;align-items:center;gap:12px;
    position:fixed;top:0;left:0;right:0;height:56px;padding:0 16px;z-index:70;
    background:rgba(8,10,24,.94);border-bottom:1px solid var(--c-line);
  }
  .topbar-brand{display:flex;align-items:center;gap:8px;font-size:14px;font-weight:900}
  .topbar-brand .brand-mark{width:28px;height:28px;flex:0 0 28px;border-radius:9px;font-size:12px}
  .topbar-current{font-size:13px;color:var(--c-text-2);white-space:nowrap}
  .hamburger{
    justify-self:end;width:40px;height:40px;border-radius:10px;border:1px solid var(--c-line-strong);
    display:grid;place-items:center;color:var(--c-text);font-size:15px;
  }
  .hamburger:hover{border-color:var(--c-cat-40);color:var(--c-cat)}
  .cat-hero-inner{grid-template-columns:1fr;gap:28px;padding:26px 0 44px}
  .hero-visual{max-width:560px}
  .cat-hero-stars{width:160px;height:110px;opacity:.5}
  .tl-wrap{grid-template-columns:1fr;gap:36px}
  .metrics-grid{grid-template-columns:repeat(2,1fr)}
  .metric{border-bottom:1px solid var(--c-line)}
  .metric:nth-child(2n){border-right:0}
  .metric:nth-child(n+3){border-bottom:0}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;padding:52px 0 36px}
}
@media (max-width:767px){
  body{font-size:15.5px}
  .container{padding:0 20px}
  .section{padding:56px 0}
  .section-head{flex-direction:column;align-items:flex-start;gap:14px;margin-bottom:26px}
  .section-head h2{font-size:24px}
  .cat-hero h1{font-size:30px}
  .cat-hero h1 span{font-size:14px}
  .hero-lead{font-size:15px}
  .hero-actions .btn{flex:1 1 100%}
  .cover-grid{grid-template-columns:1fr}
  .item-card{grid-template-columns:1fr;gap:16px}
  .item-thumb img{aspect-ratio:16/9}
  .item-body{padding:0}
  .item-body h3{font-size:18px}
  .metric{padding:22px 18px}
  .metric .k{font-size:24px}
  .cta-bar{padding:26px 22px}
  .cta-actions{width:100%}
  .cta-actions .btn{flex:1 1 100%}
  .faq-a .inner{padding:18px 20px 20px 22px}
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .footer-bottom{flex-direction:column;gap:8px}
  .mini-card{flex:0 0 82%}
}
@media (max-width:479px){
  .cat-hero-stars{display:none}
  .hero-tags{gap:8px}
  .tag{font-size:12px;height:28px;padding:0 10px}
}
@media (prefers-reduced-motion:reduce){
  *{animation:none !important;transition:none !important}
  .cat-hero-stars{opacity:.5}
}

/* roulang page: category2 */
:root{
  --c-bg:#080A18;
  --c-bg-2:#0E1126;
  --c-surface:#141834;
  --c-surface-2:#1B2044;
  --c-line:rgba(140,160,220,.16);
  --c-line-strong:rgba(140,160,220,.28);
  --c-primary:#1FD1DE;
  --c-primary-soft:rgba(31,209,222,.12);
  --c-primary-mid:rgba(31,209,222,.24);
  --c-accent:#FF3D7F;
  --c-accent-2:#FFC857;
  --c-text:#E9ECFA;
  --c-text-2:#A3AACD;
  --c-text-3:#6E7597;
  --c-ok:#35D07F;
  --c-warn:#FFB020;
  --c-err:#FF5C7A;
  --r-card:14px;
  --r-img:12px;
  --r-btn:10px;
  --r-input:10px;
  --r-pill:999px;
  --elev-1:0 12px 32px rgba(0,0,0,.45);
  --elev-2:0 18px 44px rgba(0,0,0,.55);
  --sp-8:8px;--sp-16:16px;--sp-24:24px;--sp-32:32px;--sp-48:48px;--sp-64:64px;--sp-88:88px;
  --ease:cubic-bezier(.2,.7,.3,1);
  --nav-w:248px;
  --font:"PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,"Segoe UI",Arial,sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:var(--font);
  font-size:16px;
  line-height:1.8;
  color:var(--c-text);
  background:var(--c-bg);
  background-image:
    radial-gradient(900px 520px at 78% -8%,rgba(31,209,222,.10),transparent 62%),
    radial-gradient(700px 420px at 6% 12%,rgba(255,61,127,.07),transparent 60%);
  background-repeat:no-repeat;
  -webkit-font-smoothing:antialiased;
}
img{display:block;max-width:100%;height:auto}
a{color:inherit;text-decoration:none;transition:color .16s var(--ease),opacity .16s var(--ease)}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4,h5{margin:0;font-weight:800;line-height:1.28;letter-spacing:.01em}
p{margin:0}
:focus-visible{outline:2px solid var(--c-primary);outline-offset:3px;border-radius:6px}
.num{font-variant-numeric:tabular-nums;letter-spacing:.02em}
.container{width:100%;max-width:1280px;margin:0 auto;padding:0 24px}
.visually-hidden{position:absolute;width:1px;height:1px;margin:-1px;padding:0;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap;border:0}

/* ============ 左侧 App Shell 导航 ============ */
.sidenav{
  position:fixed;top:0;left:0;bottom:0;width:var(--nav-w);
  display:flex;flex-direction:column;
  background:linear-gradient(180deg,#0B0E20 0%,#0A0D1D 100%);
  border-right:1px solid var(--c-line);
  padding:24px 18px 18px;
  z-index:60;
}
.brand{display:flex;align-items:center;gap:12px;padding:0 6px 22px;border-bottom:1px solid var(--c-line)}
.brand-mark{
  width:38px;height:38px;flex:0 0 38px;border-radius:12px;position:relative;
  background:linear-gradient(145deg,rgba(31,209,222,.22),rgba(31,209,222,.05));
  border:1px solid var(--c-line-strong);
}
.brand-mark::before{
  content:"";position:absolute;inset:9px;border-radius:50%;
  border:1px solid var(--c-primary);opacity:.85;
}
.brand-mark::after{
  content:"";position:absolute;width:7px;height:7px;border-radius:50%;
  background:var(--c-accent-2);top:9px;right:8px;box-shadow:0 0 10px rgba(255,200,87,.7);
}
.brand-name{display:block;font-size:16px;font-weight:800;letter-spacing:.02em;line-height:1.3}
.brand-sub{display:block;font-size:11px;color:var(--c-text-3);letter-spacing:.14em;margin-top:2px}
.sidenav-nav{display:flex;flex-direction:column;gap:4px;margin-top:20px;flex:1 1 auto;overflow-y:auto}
.nav-item{
  position:relative;display:flex;align-items:center;gap:12px;
  padding:11px 12px 11px 14px;border-radius:10px;
  color:var(--c-text-2);font-size:14.5px;font-weight:600;
  transition:background .16s var(--ease),color .16s var(--ease),transform .16s var(--ease);
}
.nav-item::before{
  content:"";position:absolute;left:0;top:50%;transform:translateY(-50%) scaleY(0);
  width:3px;height:20px;border-radius:2px;background:var(--c-primary);
  transition:transform .2s var(--ease);
}
.nav-item .nav-idx{font-size:11px;color:var(--c-text-3);font-variant-numeric:tabular-nums;width:18px;flex:0 0 18px}
.nav-item .nav-ico{width:20px;text-align:center;font-size:14px;color:var(--c-text-3);transition:color .16s var(--ease)}
.nav-item .label{white-space:nowrap}
.nav-item:hover{background:rgba(140,160,220,.07);color:var(--c-text)}
.nav-item:hover .nav-ico{color:var(--c-primary)}
.nav-item.is-active{background:var(--c-primary-soft);color:var(--c-primary)}
.nav-item.is-active::before{transform:translateY(-50%) scaleY(1)}
.nav-item.is-active .nav-idx,.nav-item.is-active .nav-ico{color:var(--c-primary)}
.nav-item:focus-visible{outline:2px solid var(--c-primary);outline-offset:2px}
.sidenav-foot{border-top:1px solid var(--c-line);padding-top:14px;margin-top:14px}
.sidenav-actions{display:flex;flex-direction:column;gap:8px}
.mini-btn{
  display:flex;align-items:center;justify-content:center;gap:8px;
  height:38px;border-radius:var(--r-btn);border:1px solid var(--c-line-strong);
  font-size:13px;color:var(--c-text-2);background:transparent;
  transition:background .16s var(--ease),color .16s var(--ease),border-color .16s var(--ease);
}
.mini-btn:hover{background:var(--c-primary-soft);color:var(--c-primary);border-color:var(--c-primary-mid)}
.copyline{margin-top:12px;font-size:11px;color:var(--c-text-3);line-height:1.6}
.mobile-bar{display:none}
.scrim{display:none}

/* ============ 主内容区 ============ */
.page{margin-left:var(--nav-w);min-height:100vh;display:flex;flex-direction:column}
.main{flex:1 0 auto;padding-bottom:var(--sp-88)}

/* 面包屑 */
.crumb{padding:28px 0 0}
.crumb ol{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13.5px;color:var(--c-text-3)}
.crumb li{display:flex;align-items:center;gap:8px}
.crumb .sep{color:var(--c-text-3);opacity:.6}
.crumb a:hover{color:var(--c-primary)}
.crumb .current{color:var(--c-text-2)}

/* ============ 分类 Hero ============ */
.cat-hero{
  position:relative;margin-top:22px;border-radius:18px;overflow:hidden;
  border:1px solid var(--c-line);
  background:#0C1023;
  min-height:272px;
  display:flex;align-items:center;
}
.cat-hero-bg{
  position:absolute;inset:0;
  background-image:url('/assets/images/backpic/back-2.webp');
  background-size:cover;background-position:center right;
  opacity:.42;
}
.cat-hero-mask{
  position:absolute;inset:0;
  background:linear-gradient(90deg,rgba(8,10,24,.96) 0%,rgba(8,10,24,.86) 48%,rgba(8,10,24,.52) 100%);
}
.cat-hero-inner{position:relative;z-index:3;padding:44px 48px;max-width:720px}
.hero-tag{
  display:inline-flex;align-items:center;gap:8px;
  padding:5px 14px;border-radius:var(--r-pill);
  border:1px solid rgba(31,209,222,.32);background:rgba(31,209,222,.10);
  color:var(--c-primary);font-size:12px;letter-spacing:.08em;font-weight:700;
}
.cat-hero h1{margin-top:18px;font-size:44px;font-weight:900;letter-spacing:.02em}
.cat-hero .lede{margin-top:14px;font-size:16.5px;color:var(--c-text-2);max-width:600px;line-height:1.85}
.hero-stats{display:flex;flex-wrap:wrap;gap:26px;margin-top:26px;padding-top:22px;border-top:1px solid var(--c-line)}
.hero-stats .st b{display:block;font-size:24px;font-weight:900;color:var(--c-primary);font-variant-numeric:tabular-nums}
.hero-stats .st span{display:block;font-size:12.5px;color:var(--c-text-3);margin-top:2px;letter-spacing:.04em}
.orbit{position:absolute;right:-90px;top:50%;transform:translateY(-50%);width:430px;height:430px;z-index:2;pointer-events:none}
.orbit i{position:absolute;border-radius:50%;border:1px solid rgba(140,160,220,.16);inset:0}
.orbit i:nth-child(2){inset:52px;border-color:rgba(31,209,222,.30)}
.orbit i:nth-child(3){inset:112px;border-color:rgba(140,160,220,.14)}
.orbit i:nth-child(4){inset:172px;border-color:rgba(255,200,87,.22)}
.orbit .spark{
  position:absolute;width:9px;height:9px;border-radius:50%;background:var(--c-primary);
  top:12px;left:50%;box-shadow:0 0 14px rgba(31,209,222,.85);
  animation:breathe 9s ease-in-out infinite;
}
@keyframes breathe{0%,100%{opacity:.45;transform:scale(.85)}50%{opacity:1;transform:scale(1.15)}}

/* ============ 板块通用 ============ */
.section{padding-top:var(--sp-88)}
.sec-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:30px}
.sec-title{display:flex;align-items:center;gap:14px}
.sec-title .bar{width:4px;height:26px;border-radius:2px;background:var(--c-primary)}
.sec-title h2{font-size:30px;font-weight:900}
.sec-desc{margin-top:10px;font-size:14.5px;color:var(--c-text-2);max-width:620px}
.sec-more{font-size:13.5px;color:var(--c-text-2);display:inline-flex;align-items:center;gap:8px;padding-bottom:2px;position:relative;flex:0 0 auto}
.sec-more::after{content:"";position:absolute;left:0;bottom:0;height:1px;width:0;background:var(--c-primary);transition:width .22s var(--ease)}
.sec-more:hover{color:var(--c-primary)}
.sec-more:hover::after{width:100%}

/* ============ 长条条目列表（单列） ============ */
.record-list{display:flex;flex-direction:column;gap:16px}
.record{
  display:grid;grid-template-columns:132px 1fr;gap:22px;align-items:center;
  padding:18px;border-radius:var(--r-card);
  background:var(--c-surface);border:1px solid var(--c-line);
  box-shadow:var(--elev-1);
  transition:transform .22s var(--ease),border-color .22s var(--ease),box-shadow .22s var(--ease);
}
.record:hover{transform:translateY(-3px);border-color:rgba(31,209,222,.42);box-shadow:var(--elev-2)}
.record-thumb{position:relative;overflow:hidden;border-radius:var(--r-img);aspect-ratio:1/1;background:var(--c-surface-2)}
.record-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .3s var(--ease)}
.record:hover .record-thumb img{transform:scale(1.05)}
.record-body h3{font-size:19px;font-weight:800;line-height:1.5}
.record-body h3 a:hover{color:var(--c-primary)}
.record-body p{margin-top:9px;font-size:14.5px;color:var(--c-text-2);line-height:1.8;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.record-meta{display:flex;flex-wrap:wrap;align-items:center;gap:12px;margin-top:14px;font-size:12.5px;color:var(--c-text-3)}
.record-meta .ord{color:var(--c-accent-2);font-variant-numeric:tabular-nums;font-weight:700}
.record-meta .dot{width:3px;height:3px;border-radius:50%;background:var(--c-text-3);opacity:.7}

/* 徽章 */
.badge{
  display:inline-flex;align-items:center;gap:6px;
  padding:3px 11px;border-radius:var(--r-pill);
  font-size:12px;font-weight:700;letter-spacing:.02em;
  border:1px solid rgba(31,209,222,.34);background:rgba(31,209,222,.12);color:var(--c-primary);
}
.badge.is-accent{border-color:rgba(255,61,127,.34);background:rgba(255,61,127,.12);color:#FF86AE}
.badge.is-gold{border-color:rgba(255,200,87,.34);background:rgba(255,200,87,.10);color:var(--c-accent-2)}
.badge.is-plain{border-color:var(--c-line-strong);background:rgba(140,160,220,.08);color:var(--c-text-2)}

/* ============ 分段指标区 ============ */
.metrics{
  border-radius:18px;border:1px solid var(--c-line);
  background:linear-gradient(120deg,var(--c-bg-2) 0%,#0B0F24 60%,#0C1229 100%);
  padding:44px 48px;position:relative;overflow:hidden;
}
.metrics::after{
  content:"";position:absolute;right:-120px;bottom:-140px;width:380px;height:380px;border-radius:50%;
  border:1px solid rgba(31,209,222,.16);
}
.metrics-head{position:relative;z-index:2;max-width:640px}
.metrics-head h2{font-size:28px;font-weight:900}
.metrics-head p{margin-top:10px;font-size:14.5px;color:var(--c-text-2)}
.metric-grid{position:relative;z-index:2;display:grid;grid-template-columns:repeat(3,1fr);gap:20px;margin-top:32px}
.metric{
  background:var(--c-surface-2);border:1px solid var(--c-line);border-radius:var(--r-card);
  padding:22px 22px 20px;
}
.metric .k{font-size:12.5px;color:var(--c-text-3);letter-spacing:.06em}
.metric .v{display:flex;align-items:baseline;gap:6px;margin-top:10px}
.metric .v b{font-size:34px;font-weight:900;color:var(--c-accent-2);font-variant-numeric:tabular-nums;line-height:1}
.metric .v span{font-size:13px;color:var(--c-text-2)}
.metric .track{margin-top:16px;height:6px;border-radius:999px;background:rgba(140,160,220,.14);overflow:hidden}
.metric .track i{display:block;height:100%;border-radius:999px;background:linear-gradient(90deg,var(--c-primary),rgba(31,209,222,.35))}
.metric p{margin-top:14px;font-size:13.5px;color:var(--c-text-2);line-height:1.75}

/* ============ 精选条目：三列封面卡 ============ */
.pick-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.pick{
  display:flex;flex-direction:column;overflow:hidden;
  border-radius:var(--r-card);border:1px solid var(--c-line);background:var(--c-surface);
  box-shadow:var(--elev-1);
  transition:transform .22s var(--ease),border-color .22s var(--ease),box-shadow .22s var(--ease);
}
.pick:hover{transform:translateY(-3px);border-color:rgba(31,209,222,.42);box-shadow:var(--elev-2)}
.pick-cover{position:relative;aspect-ratio:16/9;overflow:hidden;background:var(--c-surface-2)}
.pick-cover img{width:100%;height:100%;object-fit:cover;transition:transform .3s var(--ease)}
.pick:hover .pick-cover img{transform:scale(1.04)}
.pick-cover .badge{position:absolute;top:12px;left:12px;backdrop-filter:none;background:rgba(10,13,29,.82)}
.pick-body{padding:20px;display:flex;flex-direction:column;flex:1 1 auto}
.pick-body h3{font-size:17.5px;font-weight:800;line-height:1.55;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.pick-body p{margin-top:10px;font-size:14px;color:var(--c-text-2);line-height:1.78;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.pick-foot{margin-top:auto;padding-top:16px;display:flex;align-items:center;justify-content:space-between;font-size:12.5px;color:var(--c-text-3)}
.pick-foot .time{font-variant-numeric:tabular-nums}
.pick-foot .go{color:var(--c-text-3);transition:color .16s var(--ease),transform .16s var(--ease)}
.pick:hover .pick-foot .go{color:var(--c-primary);transform:translateX(3px)}

/* ============ 相关推荐：横向卡带 ============ */
.reel-wrap{position:relative}
.reel{
  display:flex;gap:16px;overflow-x:auto;padding:4px 4px 18px;
  scroll-snap-type:x mandatory;
  scrollbar-width:thin;scrollbar-color:rgba(31,209,222,.4) transparent;
}
.reel::-webkit-scrollbar{height:6px}
.reel::-webkit-scrollbar-thumb{background:rgba(31,209,222,.36);border-radius:999px}
.reel::-webkit-scrollbar-track{background:rgba(140,160,220,.10);border-radius:999px}
.mini{
  flex:0 0 268px;scroll-snap-align:start;
  border-radius:var(--r-card);border:1px solid var(--c-line);background:var(--c-surface-2);
  padding:18px;transition:transform .22s var(--ease),border-color .22s var(--ease);
}
.mini:hover{transform:translateY(-3px);border-color:rgba(31,209,222,.42)}
.mini h4{font-size:15.5px;font-weight:800;line-height:1.6;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.mini p{margin-top:8px;font-size:13.5px;color:var(--c-text-2);line-height:1.75;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.mini .mini-foot{margin-top:14px;display:flex;align-items:center;justify-content:space-between;font-size:12px;color:var(--c-text-3)}
.mini .mini-foot .time{font-variant-numeric:tabular-nums}

/* ============ 星轨 CTA 条 ============ */
.cta-bar{
  position:relative;overflow:hidden;
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:24px;
  padding:30px 36px;border-radius:18px;
  border:1px solid var(--c-line-strong);
  background:linear-gradient(90deg,rgba(31,209,222,.14) 0%,rgba(20,24,52,.9) 42%,rgba(14,17,38,.96) 100%);
}
.cta-bar::before{
  content:"";position:absolute;left:0;top:-40%;width:1px;height:180%;
  background:linear-gradient(180deg,transparent,rgba(255,200,87,.55),transparent);
  animation:scan 9s linear infinite;
}
@keyframes scan{0%{left:4%}100%{left:96%}}
.cta-copy{position:relative;z-index:2;max-width:560px}
.cta-copy strong{display:block;font-size:20px;font-weight:900}
.cta-copy span{display:block;margin-top:8px;font-size:14px;color:var(--c-text-2)}
.cta-actions{position:relative;z-index:2;display:flex;flex-wrap:wrap;gap:12px}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:9px;
  height:42px;padding:0 20px;border-radius:var(--r-btn);
  font-size:14.5px;font-weight:700;white-space:nowrap;
  transition:background .16s var(--ease),color .16s var(--ease),border-color .16s var(--ease),box-shadow .16s var(--ease),transform .12s var(--ease);
}
.btn-primary{background:var(--c-primary);color:#06121A;box-shadow:0 0 0 0 rgba(31,209,222,0)}
.btn-primary:hover{background:#3DDBE6;box-shadow:0 0 0 1px var(--c-primary),0 0 12px rgba(31,209,222,.45)}
.btn-primary:active{transform:scale(.98)}
.btn-ghost{border:1px solid var(--c-line-strong);color:var(--c-text);background:transparent}
.btn-ghost:hover{background:var(--c-primary-soft);color:var(--c-primary);border-color:var(--c-primary-mid)}
.btn-ghost:active{transform:scale(.98)}
.btn-sm{height:32px;padding:0 14px;font-size:13px}
.btn[disabled]{opacity:.4;cursor:not-allowed}

/* ============ FAQ ============ */
.faq-list{display:flex;flex-direction:column;gap:12px}
.faq-item{border-radius:var(--r-card);border:1px solid var(--c-line);background:var(--c-surface);overflow:hidden;transition:border-color .2s var(--ease)}
.faq-item:hover{border-color:var(--c-line-strong)}
.faq-q{
  width:100%;display:flex;align-items:center;gap:16px;text-align:left;
  min-height:56px;padding:16px 20px;font-size:16px;font-weight:700;color:var(--c-text);
}
.faq-q .qbar{width:4px;height:20px;border-radius:2px;background:var(--c-primary);flex:0 0 4px}
.faq-q .qidx{font-size:12px;color:var(--c-accent-2);font-variant-numeric:tabular-nums;flex:0 0 auto}
.faq-q .qtxt{flex:1 1 auto}
.faq-q .chev{color:var(--c-text-3);font-size:13px;transition:transform .22s var(--ease),color .16s var(--ease)}
.faq-q[aria-expanded="true"]{color:var(--c-primary)}
.faq-q[aria-expanded="true"] .chev{transform:rotate(180deg);color:var(--c-primary)}
.faq-a{display:none;padding:18px 22px 22px 60px;background:#0C1023;border-top:1px solid var(--c-line);font-size:15px;line-height:1.85;color:var(--c-text-2)}
.faq-a.is-open{display:block}

/* ============ 页脚 ============ */
.footer{
  margin-left:0;flex:0 0 auto;
  border-top:1px solid var(--c-line);
  background:#070915;
  background-image:linear-gradient(90deg,transparent,rgba(31,209,222,.35),rgba(255,200,87,.28),transparent);
  background-repeat:no-repeat;background-size:100% 1px;background-position:top;
  margin-top:var(--sp-88);
}
.footer .container{padding-top:60px;padding-bottom:26px}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:40px}
.footer-brand .brand-name{font-size:18px;font-weight:900;letter-spacing:.02em}
.footer-brand p{margin-top:14px;font-size:14px;color:var(--c-text-2);line-height:1.85;max-width:360px}
.footer h5{font-size:13px;font-weight:800;letter-spacing:.1em;color:var(--c-text-3);margin-bottom:16px}
.footer-links{display:flex;flex-direction:column;gap:10px}
.footer-links a{font-size:14px;color:var(--c-text-2)}
.footer-links a:hover{color:var(--c-primary)}
.footer-bottom{
  margin-top:48px;padding-top:20px;border-top:1px solid var(--c-line);
  display:flex;flex-wrap:wrap;gap:12px;align-items:center;justify-content:space-between;
  font-size:12.5px;color:var(--c-text-3);
}
.footer-bottom .dot{margin:0 8px;opacity:.6}

/* ============ Toast ============ */
.toast{
  position:fixed;left:50%;bottom:30px;transform:translate(-50%,20px);
  display:flex;align-items:center;gap:10px;
  padding:12px 22px;border-radius:var(--r-pill);
  background:#0E1330;border:1px solid var(--c-primary);
  color:var(--c-text);font-size:14px;
  box-shadow:var(--elev-2);opacity:0;pointer-events:none;
  transition:opacity .22s var(--ease),transform .22s var(--ease);
  z-index:120;
}
.toast.is-show{opacity:1;transform:translate(-50%,0)}
.toast.is-ok{border-color:var(--c-ok)}
.toast.is-err{border-color:var(--c-err)}

/* ============ 响应式 ============ */
@media (max-width:1279px){
  :root{--nav-w:80px}
  .sidenav{padding:20px 12px 16px;align-items:center}
  .brand{padding:0 0 18px;justify-content:center;width:100%}
  .brand-text{display:none}
  .nav-item{justify-content:center;padding:12px 0;width:100%;gap:0}
  .nav-item .label{
    position:absolute;left:calc(100% + 10px);top:50%;transform:translateY(-50%);
    background:#12173A;border:1px solid var(--c-line-strong);border-radius:8px;
    padding:6px 12px;font-size:13px;white-space:nowrap;color:var(--c-text);
    opacity:0;pointer-events:none;transition:opacity .16s var(--ease);z-index:70;
  }
  .nav-item:hover .label,.nav-item:focus-visible .label{opacity:1}
  .nav-item .nav-idx{display:none}
  .nav-item .nav-ico{font-size:16px}
  .sidenav-foot{width:100%}
  .mini-btn span{display:none}
  .copyline{display:none}
  .cat-hero h1{font-size:38px}
  .metrics{padding:36px 32px}
}

@media (max-width:1023px){
  :root{--nav-w:0px}
  .sidenav{
    width:280px;padding:22px 18px 18px;align-items:stretch;
    transform:translateX(-104%);
    transition:transform .26s var(--ease);
    box-shadow:var(--elev-2);
  }
  .sidenav.is-open{transform:translateX(0)}
  .sidenav .brand{justify-content:flex-start}
  .sidenav .brand-text{display:block}
  .sidenav .nav-item{justify-content:flex-start;padding:11px 12px 11px 14px;gap:12px;width:100%}
  .sidenav .nav-item .label{position:static;transform:none;opacity:1;background:none;border:0;padding:0;pointer-events:auto}
  .sidenav .nav-item .nav-idx{display:block}
  .sidenav .sidenav-foot .mini-btn span{display:inline}
  .sidenav .copyline{display:block}
  .mobile-bar{
    display:flex;align-items:center;justify-content:space-between;gap:12px;
    position:fixed;top:0;left:0;right:0;height:56px;padding:0 16px;
    background:rgba(8,10,24,.94);border-bottom:1px solid var(--c-line);
    z-index:80;
  }
  .mobile-bar .mb-brand{display:flex;align-items:center;gap:10px;font-size:15px;font-weight:800}
  .mobile-bar .mb-brand .brand-mark{width:30px;height:30px;flex:0 0 30px}
  .mobile-bar .mb-title{font-size:13px;color:var(--c-text-3)}
  .burger{width:40px;height:40px;border-radius:10px;border:1px solid var(--c-line-strong);display:inline-flex;align-items:center;justify-content:center;color:var(--c-text-2)}
  .burger:hover{color:var(--c-primary);border-color:var(--c-primary-mid)}
  .scrim{display:block;position:fixed;inset:0;background:rgba(8,10,24,.72);opacity:0;pointer-events:none;transition:opacity .26s var(--ease);z-index:70}
  .scrim.is-open{opacity:1;pointer-events:auto}
  .page{margin-left:0;padding-top:56px}
  .cat-hero-inner{padding:34px 28px}
  .cat-hero h1{font-size:32px}
  .pick-grid{grid-template-columns:repeat(2,1fr)}
  .metric-grid{grid-template-columns:repeat(2,1fr)}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
}

@media (max-width:767px){
  .container{padding:0 18px}
  .main{padding-bottom:64px}
  .section{padding-top:64px}
  .cat-hero{min-height:0;border-radius:16px}
  .cat-hero-inner{padding:28px 20px}
  .cat-hero h1{font-size:27px}
  .cat-hero .lede{font-size:15px}
  .orbit{display:none}
  .hero-stats{gap:20px}
  .hero-stats .st b{font-size:20px}
  .sec-title h2{font-size:23px}
  .sec-head{flex-direction:column;align-items:flex-start;gap:14px;margin-bottom:22px}
  .record{grid-template-columns:96px 1fr;gap:16px;padding:14px}
  .record-body h3{font-size:16.5px}
  .record-body p{-webkit-line-clamp:2}
  .pick-grid{grid-template-columns:1fr}
  .metric-grid{grid-template-columns:1fr}
  .metrics{padding:26px 20px;border-radius:16px}
  .cta-bar{padding:24px 20px;border-radius:16px}
  .cta-actions{width:100%}
  .cta-actions .btn{flex:1 1 auto}
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .footer .container{padding-top:44px}
  .faq-a{padding:16px 18px 20px 20px}
  .mini{flex:0 0 236px}
}

@media (max-width:520px){
  body{font-size:15.5px}
  .cat-hero h1{font-size:24px}
  .record{grid-template-columns:1fr}
  .record-thumb{aspect-ratio:16/9}
  .btn{height:44px}
  .btn-sm{height:36px}
  .footer-bottom{flex-direction:column;align-items:flex-start}
}

@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation-duration:.001ms !important;animation-iteration-count:1 !important;transition-duration:.001ms !important}
  html{scroll-behavior:auto}
  .orbit .spark{opacity:.8}
}

/* roulang page: category3 */
:root{
  --c-bg:#080A18;
  --c-bg-2:#0E1126;
  --c-surface:#141834;
  --c-surface-2:#1B2044;
  --c-line:rgba(140,160,220,.16);
  --c-line-strong:rgba(140,160,220,.28);
  --c-primary:#22D3C5;
  --c-primary-weak:rgba(34,211,197,.12);
  --c-primary-weak-2:rgba(34,211,197,.24);
  --c-topic:#2BD9A7;
  --c-accent:#FF3D7F;
  --c-accent-2:#FFC857;
  --c-text:#E9ECFA;
  --c-text-2:#A3AACD;
  --c-text-3:#6E7597;
  --c-success:#35D07F;
  --c-warning:#FFB020;
  --c-error:#FF5C7A;
  --r-card:14px;
  --r-img:12px;
  --r-btn:10px;
  --shadow-1:0 12px 32px rgba(0,0,0,.45);
  --shadow-2:0 18px 44px rgba(0,0,0,.55);
  --ease:cubic-bezier(.2,.7,.3,1);
  --sidenav-w:248px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  background:var(--c-bg);
  color:var(--c-text);
  font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC","Hiragino Sans GB",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:16px;
  line-height:1.8;
  -webkit-font-smoothing:antialiased;
  -moz-osx-font-smoothing:grayscale;
}
img{max-width:100%;display:block;border-style:none}
a{color:inherit;text-decoration:none}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4,h5{margin:0;font-weight:800;line-height:1.3;letter-spacing:.01em}
p{margin:0}
:focus-visible{outline:2px solid var(--c-primary);outline-offset:2px;border-radius:4px}
::selection{background:var(--c-primary-weak-2);color:#fff}
.container{width:100%;max-width:1280px;margin:0 auto;padding:0 24px}
.num{font-variant-numeric:tabular-nums;font-feature-settings:"tnum" 1}

/* ---------- 左侧导航 ---------- */
.sidenav{
  position:fixed;
  top:0;left:0;bottom:0;
  width:var(--sidenav-w);
  background:var(--c-bg-2);
  border-right:1px solid var(--c-line);
  display:flex;
  flex-direction:column;
  z-index:60;
  transition:transform 260ms var(--ease),width 260ms var(--ease);
}
.sidenav-head{padding:22px 20px;border-bottom:1px solid var(--c-line)}
.brand{display:flex;align-items:center;gap:10px;font-weight:900;font-size:15px;color:var(--c-text);white-space:nowrap}
.brand-mark{
  width:32px;height:32px;flex:0 0 32px;border-radius:10px;
  display:grid;place-items:center;
  background:linear-gradient(135deg,var(--c-primary),#149E93);
  color:#06121A;font-size:14px;
}
.brand-text{overflow:hidden;text-overflow:ellipsis}
.sidenav-nav{flex:1;padding:16px 12px;display:flex;flex-direction:column;gap:4px;overflow-y:auto}
.nav-item{
  position:relative;
  display:flex;align-items:center;gap:12px;
  padding:11px 12px;border-radius:10px;
  color:var(--c-text-2);
  transition:background 160ms var(--ease),color 160ms var(--ease);
}
.nav-item::before{
  content:"";position:absolute;left:0;top:9px;bottom:9px;width:3px;border-radius:2px;
  background:var(--c-primary);opacity:0;transition:opacity 160ms var(--ease);
}
.nav-item:hover{background:var(--c-primary-weak);color:var(--c-text)}
.nav-item:active{transform:scale(.99)}
.nav-item.is-active{background:rgba(34,211,197,.08);color:var(--c-primary)}
.nav-item.is-active::before{opacity:1}
.nav-item.is-active:focus-visible{outline:2px solid var(--c-primary);outline-offset:2px}
.nav-idx{font-size:12px;color:var(--c-text-3);width:22px;font-variant-numeric:tabular-nums}
.nav-ico{width:20px;text-align:center;font-size:14px}
.nav-item .label{font-size:15px;white-space:nowrap}
.sidenav-foot{padding:16px;border-top:1px solid var(--c-line);display:flex;flex-direction:column;gap:10px}
.side-actions{display:flex;gap:8px}
.side-actions .btn{flex:1;padding:0 8px}
.side-copy{margin:0;font-size:12px;color:var(--c-text-3);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:42px;padding:0 20px;border-radius:var(--r-btn);
  font-size:15px;font-weight:600;
  border:1px solid transparent;
  transition:background 160ms var(--ease),color 160ms var(--ease),box-shadow 160ms var(--ease),transform 160ms var(--ease),border-color 160ms var(--ease);
  white-space:nowrap;
}
.btn-primary{background:var(--c-primary);color:#06121A}
.btn-primary:hover{filter:brightness(1.08);box-shadow:0 0 0 1px var(--c-primary),0 0 12px rgba(34,211,197,.35)}
.btn-primary:active{transform:scale(.98)}
.btn-ghost{border-color:var(--c-line-strong);color:var(--c-text-2)}
.btn-ghost:hover{background:var(--c-primary-weak);border-color:rgba(34,211,197,.45);color:var(--c-primary)}
.btn-ghost:active{transform:scale(.98)}
.btn-sm{height:32px;padding:0 12px;font-size:13px;border-radius:8px}
.btn-lg{height:50px;padding:0 26px;font-size:16px}
.btn[disabled]{opacity:.4;cursor:not-allowed}

/* ---------- 顶部条（移动） ---------- */
.topbar{
  display:none;
  position:fixed;top:0;left:0;right:0;height:56px;
  align-items:center;justify-content:space-between;gap:12px;
  padding:0 14px;
  background:rgba(8,10,24,.96);
  border-bottom:1px solid var(--c-line);
  z-index:70;
}
.topbar-left{display:flex;align-items:center;gap:12px;min-width:0}
.hamburger{
  width:40px;height:40px;flex:0 0 40px;display:grid;place-items:center;
  border:1px solid var(--c-line-strong);border-radius:10px;color:var(--c-text);
}
.hamburger:hover{background:var(--c-primary-weak);color:var(--c-primary)}
.topbar-current{font-size:13px;color:var(--c-text-2);white-space:nowrap}
.drawer-mask{
  position:fixed;inset:0;background:rgba(8,10,24,.72);
  opacity:0;visibility:hidden;transition:opacity 260ms var(--ease),visibility 260ms var(--ease);
  z-index:55;
}
.drawer-mask.is-open{opacity:1;visibility:visible}

/* ---------- 主区域 ---------- */
.main-wrap{margin-left:var(--sidenav-w);min-height:100vh;display:flex;flex-direction:column}
.section{padding:88px 0}
.section--alt{background:var(--c-bg-2);border-top:1px solid var(--c-line);border-bottom:1px solid var(--c-line)}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;flex-wrap:wrap;margin-bottom:36px}
.section-title{font-size:32px;margin-bottom:10px}
.section-sub{margin:0;color:var(--c-text-2);font-size:15px;max-width:62ch}
.eyebrow{
  display:inline-block;margin-bottom:12px;
  font-size:12px;font-weight:700;letter-spacing:.16em;text-transform:uppercase;
  color:var(--c-primary);
}

/* ---------- 面包屑 ---------- */
.crumb{display:flex;flex-wrap:wrap;gap:8px;font-size:14px;color:var(--c-text-3);padding:22px 0 0}
.crumb a{color:var(--c-text-3);transition:color 160ms var(--ease)}
.crumb a:hover{color:var(--c-primary)}
.crumb .sep{color:var(--c-text-3);opacity:.6}
.crumb .current{color:var(--c-text-2)}

/* ---------- Hero ---------- */
.hero{
  position:relative;overflow:hidden;
  background-image:url('/assets/images/backpic/back-2.webp');
  background-size:cover;background-position:center;
  border-bottom:1px solid var(--c-line);
}
.hero::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(100deg,rgba(8,10,24,.96) 0%,rgba(8,10,24,.9) 52%,rgba(8,10,24,.74) 100%);
}
.hero-inner{
  position:relative;z-index:2;
  padding:44px 0;
  min-height:280px;
  display:grid;grid-template-columns:1.12fr .88fr;gap:44px;align-items:center;
}
.hero h1{font-size:48px;letter-spacing:.02em;margin-bottom:14px}
.hero-lead{color:var(--c-text-2);font-size:16px;max-width:52ch;margin-bottom:22px}
.chip-row{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:26px}
.chip{
  display:inline-flex;align-items:center;gap:8px;
  padding:7px 14px;border-radius:999px;
  border:1px solid var(--c-line-strong);
  background:rgba(20,24,52,.7);
  font-size:13px;color:var(--c-text-2);
}
.chip b{color:var(--c-accent-2);font-variant-numeric:tabular-nums;font-weight:800}
.chip--topic{border-color:rgba(43,217,167,.4);color:var(--c-topic)}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px}
.hero-figure{position:relative}
.hero-figure img{
  width:100%;aspect-ratio:16/10;object-fit:cover;
  border-radius:var(--r-img);
  border:1px solid var(--c-line-strong);
  box-shadow:var(--shadow-1);
}
.hero-orbit{
  position:absolute;top:-58px;right:-70px;width:320px;height:320px;
  opacity:.45;pointer-events:none;
}

/* ---------- 数据卡 ---------- */
.stat-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.stat-card{
  background:var(--c-surface);
  border:1px solid var(--c-line);
  border-radius:var(--r-card);
  padding:26px 24px;
  transition:transform 220ms var(--ease),box-shadow 220ms var(--ease),border-color 220ms var(--ease);
}
.stat-card:hover{transform:translateY(-3px);border-color:rgba(34,211,197,.4);box-shadow:var(--shadow-2)}
.stat-num{
  font-size:34px;font-weight:900;line-height:1.1;
  color:var(--c-accent-2);
  font-variant-numeric:tabular-nums;
  margin-bottom:10px;
}
.stat-num span{font-size:14px;color:var(--c-text-3);font-weight:600;margin-left:6px}
.stat-card h3{font-size:18px;margin-bottom:8px}
.stat-card p{color:var(--c-text-2);font-size:14px;line-height:1.8}

/* ---------- 角色卡（4 列） ---------- */
.role-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.role-card{
  position:relative;
  background:var(--c-surface);
  border:1px solid var(--c-line);
  border-radius:var(--r-card);
  padding:22px 20px 24px;
  transition:transform 220ms var(--ease),border-color 220ms var(--ease),box-shadow 220ms var(--ease);
}
.role-card:hover{transform:translateY(-3px);border-color:rgba(43,217,167,.45);box-shadow:var(--shadow-2)}
.role-tag{
  display:inline-flex;align-items:center;gap:6px;
  font-size:12px;font-weight:700;letter-spacing:.06em;
  padding:4px 10px;border-radius:999px;
  border:1px solid rgba(43,217,167,.4);
  background:rgba(43,217,167,.12);
  color:var(--c-topic);
  margin-bottom:14px;
}
.role-card h3{font-size:18px;margin-bottom:10px}
.role-card p{font-size:14px;color:var(--c-text-2);line-height:1.8}
.role-meta{margin-top:16px;padding-top:14px;border-top:1px solid var(--c-line);font-size:12px;color:var(--c-text-3)}
.role-meta b{color:var(--c-text-2);font-variant-numeric:tabular-nums}

/* ---------- 流程 ---------- */
.flow{display:grid;grid-template-columns:repeat(4,1fr);border:1px solid var(--c-line);border-radius:var(--r-card);overflow:hidden;background:var(--c-surface)}
.flow-step{padding:26px 22px;border-left:1px solid var(--c-line);transition:background 220ms var(--ease)}
.flow-step:first-child{border-left:0}
.flow-step:hover{background:var(--c-surface-2)}
.flow-idx{font-size:12px;color:var(--c-accent-2);font-variant-numeric:tabular-nums;letter-spacing:.12em;margin-bottom:12px}
.flow-step h3{font-size:17px;margin-bottom:8px}
.flow-step p{font-size:14px;color:var(--c-text-2);line-height:1.8}

/* ---------- 精选条目（长条单列） ---------- */
.entry-list{display:flex;flex-direction:column;gap:16px}
.entry{
  display:grid;grid-template-columns:120px minmax(0,1fr) auto;
  gap:20px;align-items:center;
  background:var(--c-surface);
  border:1px solid var(--c-line);
  border-radius:var(--r-card);
  padding:16px;
  transition:transform 220ms var(--ease),border-color 220ms var(--ease),box-shadow 220ms var(--ease);
}
.entry:hover{transform:translateY(-3px);border-color:rgba(34,211,197,.4);box-shadow:var(--shadow-2)}
.entry-thumb{width:120px;height:92px;border-radius:var(--r-img);overflow:hidden;border:1px solid var(--c-line)}
.entry-thumb img{width:100%;height:100%;object-fit:cover;transition:transform 220ms var(--ease)}
.entry:hover .entry-thumb img{transform:scale(1.04)}
.entry-body h3{font-size:18px;margin-bottom:8px}
.entry-body p{font-size:14px;color:var(--c-text-2);line-height:1.78}
.entry-meta{display:flex;flex-wrap:wrap;gap:10px;align-items:center;margin-top:12px}
.tag{
  display:inline-flex;align-items:center;gap:6px;
  font-size:12px;padding:3px 10px;border-radius:999px;
  border:1px solid var(--c-line-strong);
  background:rgba(140,160,220,.12);
  color:var(--c-text-2);
}
.tag--topic{border-color:rgba(34,211,197,.42);background:rgba(34,211,197,.12);color:var(--c-primary)}
.tag--data{border-color:rgba(255,200,87,.42);background:rgba(255,200,87,.1);color:var(--c-accent-2)}
.time{font-size:12px;color:var(--c-text-3);font-variant-numeric:tabular-nums}
.entry-arrow{width:38px;height:38px;display:grid;place-items:center;border-radius:50%;border:1px solid var(--c-line-strong);color:var(--c-text-2);transition:all 160ms var(--ease)}
.entry:hover .entry-arrow{background:var(--c-primary);border-color:var(--c-primary);color:#06121A}

/* ---------- 迷你卡带 ---------- */
.strip{
  display:grid;grid-auto-flow:column;
  grid-auto-columns:minmax(250px,1fr);
  gap:16px;overflow-x:auto;padding:4px 4px 14px;
  scroll-snap-type:x mandatory;
  -webkit-overflow-scrolling:touch;
}
.strip::-webkit-scrollbar{height:8px}
.strip::-webkit-scrollbar-thumb{background:rgba(140,160,220,.3);border-radius:99px}
.strip::-webkit-scrollbar-track{background:rgba(140,160,220,.08);border-radius:99px}
.mini-card{
  scroll-snap-align:start;
  background:var(--c-surface-2);
  border:1px solid var(--c-line);
  border-radius:var(--r-card);
  padding:20px;
  display:flex;flex-direction:column;gap:10px;
  transition:transform 220ms var(--ease),border-color 220ms var(--ease);
}
.mini-card:hover{transform:translateY(-3px);border-color:rgba(255,61,127,.4)}
.mini-card h3{font-size:16px}
.mini-card p{font-size:13.5px;color:var(--c-text-2);line-height:1.78}
.mini-card .mini-foot{margin-top:auto;padding-top:12px;border-top:1px solid var(--c-line);display:flex;justify-content:space-between;align-items:center;font-size:12px;color:var(--c-text-3)}

/* ---------- CTA 星轨条 ---------- */
.cta-wrap{padding:0 0 88px}
.cta-bar{
  display:flex;align-items:center;justify-content:space-between;gap:28px;flex-wrap:wrap;
  padding:30px 34px;border-radius:16px;
  border:1px solid var(--c-line-strong);
  background:linear-gradient(100deg,rgba(34,211,197,.14) 0%,rgba(255,61,127,.08) 100%);
}
.cta-bar h2{font-size:22px;margin-bottom:8px}
.cta-bar p{font-size:14px;color:var(--c-text-2)}
.cta-actions{display:flex;gap:12px;flex-wrap:wrap}

/* ---------- FAQ ---------- */
.faq-list{display:flex;flex-direction:column;gap:12px;max-width:960px}
.faq-item{background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-card);overflow:hidden;transition:border-color 160ms var(--ease)}
.faq-item.is-open{border-color:rgba(34,211,197,.42)}
.faq-q{
  width:100%;display:flex;align-items:center;gap:14px;
  min-height:56px;padding:12px 20px;text-align:left;
  font-size:16px;font-weight:600;color:var(--c-text);
  transition:color 160ms var(--ease);
}
.faq-q:hover{color:var(--c-primary)}
.faq-bar{width:4px;height:22px;flex:0 0 4px;border-radius:2px;background:var(--c-primary)}
.faq-idx{font-size:12px;color:var(--c-text-3);font-variant-numeric:tabular-nums;letter-spacing:.08em}
.faq-q .faq-caret{margin-left:auto;color:var(--c-text-3);transition:transform 220ms var(--ease)}
.faq-item.is-open .faq-caret{transform:rotate(180deg);color:var(--c-primary)}
.faq-a{
  max-height:0;overflow:hidden;
  background:rgba(8,10,24,.42);
  transition:max-height 260ms var(--ease),padding 260ms var(--ease);
  padding:0 20px;
}
.faq-item.is-open .faq-a{max-height:340px;padding:16px 20px 20px}
.faq-a p{font-size:15px;line-height:1.85;color:var(--c-text-2)}

/* ---------- 页脚 ---------- */
.footer{
  position:relative;
  background:var(--c-bg-2);
  border-top:1px solid var(--c-line);
  padding:64px 0 24px;
  margin-top:auto;
}
.footer::before{
  content:"";position:absolute;top:-1px;left:0;right:0;height:1px;
  background:linear-gradient(90deg,transparent,rgba(34,211,197,.7),rgba(255,200,87,.55),transparent);
}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:32px}
.footer-brand .brand-name{display:block;font-size:18px;font-weight:900;margin-bottom:14px}
.footer-brand p{font-size:14px;color:var(--c-text-3);line-height:1.85;max-width:40ch}
.footer h5{font-size:14px;margin-bottom:16px;color:var(--c-text)}
.footer-links{display:flex;flex-direction:column;gap:11px}
.footer-links a{font-size:14px;color:var(--c-text-3);transition:color 160ms var(--ease),transform 160ms var(--ease)}
.footer-links a:hover{color:var(--c-primary)}
.footer-bottom{
  margin-top:48px;padding-top:20px;border-top:1px solid var(--c-line);
  display:flex;justify-content:space-between;gap:12px;flex-wrap:wrap;
  font-size:13px;color:var(--c-text-3);
}
.footer-bottom .dot{margin:0 8px;opacity:.6}

/* ---------- Toast ---------- */
.toast{
  position:fixed;left:50%;bottom:28px;
  transform:translate(-50%,18px);
  padding:12px 22px;border-radius:12px;
  background:var(--c-surface-2);
  border:1px solid var(--c-success);
  color:var(--c-text);font-size:14px;
  opacity:0;visibility:hidden;
  transition:opacity 220ms var(--ease),transform 220ms var(--ease),visibility 220ms var(--ease);
  z-index:90;
}
.toast.is-open{opacity:1;visibility:visible;transform:translate(-50%,0)}
.toast.is-error{border-color:var(--c-error)}

/* ---------- 响应式 ---------- */
@media (min-width:1024px) and (max-width:1279px){
  :root{--sidenav-w:80px}
  .brand-text,.nav-idx{display:none}
  .sidenav-head{padding:18px 0;display:flex;justify-content:center}
  .brand{justify-content:center}
  .nav-item{justify-content:center;padding:12px 0}
  .nav-ico{width:auto}
  .nav-item .label{
    position:absolute;left:62px;top:50%;transform:translateY(-50%) translateX(-6px);
    padding:6px 12px;border-radius:8px;
    background:var(--c-surface-2);border:1px solid var(--c-line-strong);
    font-size:13px;opacity:0;pointer-events:none;white-space:nowrap;
    transition:opacity 160ms var(--ease),transform 160ms var(--ease);
    z-index:5;
  }
  .nav-item:hover .label,.nav-item:focus-visible .label{opacity:1;transform:translateY(-50%) translateX(0)}
  .side-actions{flex-direction:column}
  .side-copy{display:none}
}
@media (max-width:1023px){
  .sidenav{width:280px;transform:translateX(-100%);box-shadow:var(--shadow-2)}
  .sidenav.is-open{transform:translateX(0)}
  .topbar{display:flex}
  .main-wrap{margin-left:0;padding-top:56px}
  .hero h1{font-size:30px}
  .hero-inner{grid-template-columns:1fr;gap:28px;min-height:0;padding:36px 0 44px}
  .hero-orbit{width:220px;height:220px;top:-70px;right:-80px;opacity:.3}
  .section{padding:64px 0}
  .section-title{font-size:24px}
  .stat-grid{grid-template-columns:1fr;gap:16px}
  .role-grid{grid-template-columns:repeat(2,1fr);gap:16px}
  .flow{grid-template-columns:repeat(2,1fr)}
  .flow-step{border-left:1px solid var(--c-line)}
  .flow-step:nth-child(odd){border-left:0}
  .flow-step:nth-child(n+3){border-top:1px solid var(--c-line)}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px}
  .cta-bar{padding:24px}
  .cta-wrap{padding-bottom:64px}
}
@media (max-width:720px){
  .container{padding:0 18px}
  body{font-size:15.5px}
  .hero-lead{font-size:15px}
  .chip-row{gap:8px}
  .hero-actions .btn{flex:1 1 auto}
  .stat-num{font-size:28px}
  .role-grid{grid-template-columns:1fr}
  .flow{grid-template-columns:1fr}
  .flow-step{border-left:0;border-top:1px solid var(--c-line)}
  .flow-step:first-child{border-top:0}
  .entry{grid-template-columns:1fr;gap:14px}
  .entry-thumb{width:100%;height:170px}
  .entry-arrow{display:none}
  .strip{grid-auto-columns:minmax(230px,86%)}
  .cta-bar{flex-direction:column;align-items:flex-start}
  .cta-actions{width:100%}
  .cta-actions .btn{flex:1 1 auto}
  .footer-grid{grid-template-columns:1fr;gap:26px}
  .footer-bottom{flex-direction:column;gap:8px}
  .faq-q{font-size:15px}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{transition-duration:.01ms !important;animation-duration:.01ms !important;scroll-behavior:auto !important}
}

/* roulang page: category4 */
:root{
  --c-bg:#080A18;
  --c-bg-2:#0E1126;
  --c-surface:#141834;
  --c-surface-2:#1B2044;
  --c-line:rgba(140,160,220,.16);
  --c-line-strong:rgba(140,160,220,.28);
  --c-primary:#2BB3E8;
  --c-primary-soft:rgba(43,179,232,.12);
  --c-primary-soft-2:rgba(43,179,232,.24);
  --c-accent:#FF3D7F;
  --c-accent-2:#FFC857;
  --c-text:#E9ECFA;
  --c-text-2:#A3AACD;
  --c-text-3:#6E7597;
  --c-ok:#35D07F;
  --c-warn:#FFB020;
  --c-err:#FF5C7A;
  --r-card:14px;
  --r-img:12px;
  --r-btn:10px;
  --r-pill:999px;
  --elev-1:0 12px 32px rgba(0,0,0,.45);
  --elev-2:0 18px 44px rgba(0,0,0,.55);
  --ease:cubic-bezier(.2,.7,.3,1);
  --sidebar:248px;
}

*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  background:var(--c-bg);
  color:var(--c-text);
  font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC","Hiragino Sans GB",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:16px;
  line-height:1.8;
  font-variant-numeric:tabular-nums;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border-radius:var(--r-img)}
a{color:inherit;text-decoration:none}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4,h5,p{margin:0}
h1,h2,h3,h4{font-weight:800;line-height:1.25;letter-spacing:.01em}
:focus-visible{outline:2px solid var(--c-primary);outline-offset:3px;border-radius:6px}

.container{width:100%;max-width:1280px;margin:0 auto;padding:0 24px}

/* ============ 左侧 App Shell 导航 ============ */
.sidenav{
  position:fixed;
  top:0;left:0;bottom:0;
  width:var(--sidebar);
  background:linear-gradient(180deg,#0C1026 0%,#080A18 100%);
  border-right:1px solid var(--c-line);
  display:flex;
  flex-direction:column;
  padding:24px 16px 20px;
  z-index:70;
  transition:transform .26s var(--ease);
}
.sidenav::after{
  content:"";
  position:absolute;
  top:0;right:-1px;width:1px;height:180px;
  background:linear-gradient(180deg,var(--c-primary),transparent);
  opacity:.6;
}
.brand{
  display:flex;align-items:center;gap:12px;
  padding:6px 8px 22px;
  border-bottom:1px solid var(--c-line);
  margin-bottom:20px;
}
.logo-mark{
  position:relative;
  width:36px;height:36px;flex:0 0 36px;
  border-radius:11px;
  background:linear-gradient(140deg,var(--c-primary) 0%,#1B5C8C 100%);
  box-shadow:0 0 0 1px rgba(43,179,232,.45),0 8px 22px rgba(43,179,232,.22);
  display:grid;place-items:center;
}
.logo-mark::before{
  content:"";width:12px;height:12px;border-radius:3px;
  background:#06121A;transform:rotate(45deg);
}
.logo-mark::after{
  content:"";position:absolute;top:7px;right:7px;
  width:5px;height:5px;border-radius:50%;background:var(--c-accent-2);
}
.brand-text{display:flex;flex-direction:column;line-height:1.3}
.brand-name{font-size:15px;font-weight:800;color:var(--c-text)}
.brand-sub{font-size:11px;color:var(--c-text-3);letter-spacing:.08em}

.sidenav-nav{display:flex;flex-direction:column;gap:4px;flex:1 1 auto;overflow-y:auto}
.nav-item{
  position:relative;
  display:flex;align-items:center;gap:12px;
  padding:11px 12px;
  border-radius:var(--r-btn);
  color:var(--c-text-2);
  font-size:14.5px;
  transition:background .16s var(--ease),color .16s var(--ease);
}
.nav-item::before{
  content:"";position:absolute;left:0;top:50%;transform:translateY(-50%) scaleY(.3);
  width:3px;height:60%;border-radius:0 3px 3px 0;
  background:var(--c-primary);opacity:0;transition:opacity .16s var(--ease),transform .16s var(--ease);
}
.nav-idx{font-size:11px;color:var(--c-text-3);font-variant-numeric:tabular-nums;letter-spacing:.06em}
.nav-ico{width:18px;text-align:center;font-size:14px;color:inherit;opacity:.9}
.nav-item .label{white-space:nowrap}
.nav-item:hover{background:var(--c-primary-soft);color:var(--c-text)}
.nav-item:hover::before{opacity:.5;transform:translateY(-50%) scaleY(1)}
.nav-item.is-active{
  background:var(--c-primary-soft);
  color:var(--c-primary);
  font-weight:700;
}
.nav-item.is-active::before{opacity:1;transform:translateY(-50%) scaleY(1)}
.nav-item.is-active .nav-idx{color:var(--c-primary)}

.sidenav-foot{
  margin-top:18px;padding-top:16px;
  border-top:1px solid var(--c-line);
}
.mini-actions{display:flex;gap:8px;margin-bottom:12px}
.mini-btn{
  flex:1;
  display:inline-flex;align-items:center;justify-content:center;gap:6px;
  height:34px;border-radius:9px;
  border:1px solid var(--c-line-strong);
  color:var(--c-text-2);font-size:12.5px;
  transition:border-color .16s var(--ease),color .16s var(--ease),background .16s var(--ease);
}
.mini-btn:hover{border-color:var(--c-primary);color:var(--c-primary);background:var(--c-primary-soft)}
.sidenav-copy{font-size:11px;color:var(--c-text-3);line-height:1.6}

/* ============ 移动端顶部条 & 抽屉 ============ */
.topbar{
  display:none;
  position:fixed;top:0;left:0;right:0;height:56px;
  align-items:center;justify-content:space-between;
  gap:12px;padding:0 16px;
  background:rgba(10,13,32,.94);
  border-bottom:1px solid var(--c-line);
  z-index:80;
}
.topbar-brand{display:flex;align-items:center;gap:10px;font-weight:800;font-size:15px}
.topbar-current{font-size:12px;color:var(--c-text-3);margin-left:6px;font-weight:400}
.burger{
  width:40px;height:40px;border-radius:10px;
  border:1px solid var(--c-line-strong);
  display:grid;place-items:center;font-size:16px;color:var(--c-text);
}
.burger:hover{border-color:var(--c-primary);color:var(--c-primary)}
.drawer-scrim{
  display:none;position:fixed;inset:0;background:rgba(8,10,24,.72);
  z-index:65;opacity:0;transition:opacity .26s var(--ease);
}
.drawer-scrim.is-open{opacity:1}

/* ============ 主区域 ============ */
.main{margin-left:var(--sidebar);min-height:100vh}
.section{padding:88px 0}
.section-alt{background:var(--c-bg-2);border-top:1px solid var(--c-line);border-bottom:1px solid var(--c-line)}
.section-head{
  display:flex;align-items:flex-end;justify-content:space-between;
  gap:32px;margin-bottom:40px;flex-wrap:wrap;
}
.eyebrow{
  display:inline-block;font-size:12px;letter-spacing:.16em;
  color:var(--c-primary);margin-bottom:10px;
}
.section-title{font-size:32px;letter-spacing:.01em}
.section-note{max-width:520px;color:var(--c-text-2);font-size:14.5px}

/* ============ Hero ============ */
.hero{
  position:relative;
  min-height:290px;
  display:flex;align-items:center;
  overflow:hidden;
  border-bottom:1px solid var(--c-line);
}
.hero-media{
  position:absolute;inset:0;
  background-image:linear-gradient(90deg,rgba(8,10,24,.96) 0%,rgba(8,10,24,.86) 45%,rgba(8,10,24,.72) 100%),
                   url('/assets/images/backpic/back-2.webp');
  background-size:cover;background-position:center;
}
.hero-deco{
  position:absolute;right:0;top:0;bottom:0;width:340px;pointer-events:none;opacity:.55;
  background-image:repeating-linear-gradient(to bottom,rgba(43,179,232,.35) 0 1px,transparent 1px 15px);
  -webkit-mask-image:linear-gradient(to left,rgba(0,0,0,.95),transparent 85%);
  mask-image:linear-gradient(to left,rgba(0,0,0,.95),transparent 85%);
}
.hero-deco::after{
  content:"";position:absolute;right:-90px;top:50%;transform:translateY(-50%);
  width:260px;height:260px;border-radius:50%;
  border:1px solid rgba(43,179,232,.35);
  border-right-color:transparent;border-bottom-color:transparent;
}
.hero-inner{position:relative;z-index:2;padding-top:52px;padding-bottom:52px}
.crumb{display:flex;align-items:center;gap:8px;font-size:14px;color:var(--c-text-3);margin-bottom:18px}
.crumb a:hover{color:var(--c-primary)}
.crumb .sep{color:var(--c-text-3);opacity:.7}
.crumb [aria-current]{color:var(--c-text-2)}
.badge{
  display:inline-flex;align-items:center;gap:7px;
  padding:5px 13px;border-radius:var(--r-pill);
  font-size:12.5px;line-height:1.6;
  border:1px solid var(--c-primary);background:var(--c-primary-soft);color:var(--c-primary);
}
.badge-brand{margin-bottom:16px}
.hero h1{font-size:48px;letter-spacing:.01em;margin-bottom:14px}
.hero-sub{font-size:17px;color:var(--c-text-2);max-width:640px;margin-bottom:28px}
.hero-actions{display:flex;gap:12px;flex-wrap:wrap}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:42px;padding:0 20px;border-radius:var(--r-btn);
  font-size:14.5px;font-weight:600;
  transition:background .16s var(--ease),color .16s var(--ease),border-color .16s var(--ease),
             box-shadow .16s var(--ease),transform .16s var(--ease);
}
.btn-primary{background:var(--c-primary);color:#06121A;box-shadow:0 0 0 0 rgba(43,179,232,0)}
.btn-primary:hover{
  background:#46C3F2;
  box-shadow:0 0 0 1px var(--c-primary),0 0 12px rgba(43,179,232,.5);
}
.btn-primary:active{transform:scale(.98)}
.btn-ghost{border:1px solid var(--c-line-strong);color:var(--c-text)}
.btn-ghost:hover{background:var(--c-primary-soft);border-color:var(--c-primary);color:var(--c-primary)}
.btn-ghost:active{transform:scale(.98)}
.btn-lg{height:50px;padding:0 26px;font-size:15px}
.btn[disabled],.btn.is-disabled{opacity:.4;cursor:not-allowed;pointer-events:none}

/* ============ 指标条 ============ */
.metrics{
  display:grid;grid-template-columns:repeat(4,1fr);
  gap:16px;
  border:1px solid var(--c-line);
  border-radius:var(--r-card);
  background:linear-gradient(180deg,var(--c-surface) 0%,#111530 100%);
  padding:8px;
}
.metric{
  padding:22px 20px;
  border-radius:10px;
  background:var(--c-surface-2);
  border:1px solid rgba(140,160,220,.08);
  transition:border-color .22s var(--ease),transform .22s var(--ease);
}
.metric:hover{border-color:var(--c-primary-soft-2);transform:translateY(-3px)}
.metric-num{
  display:block;font-size:30px;font-weight:800;line-height:1.2;
  color:var(--c-primary);font-variant-numeric:tabular-nums;
}
.metric-num .unit{font-size:14px;color:var(--c-text-3);margin-left:4px;font-weight:600}
.metric-label{display:block;font-size:13px;color:var(--c-text-2);margin-top:6px}
.metric-tag{
  display:inline-block;margin-top:12px;font-size:11.5px;
  padding:2px 9px;border-radius:var(--r-pill);
  border:1px solid rgba(255,200,87,.5);color:var(--c-accent-2);
}

/* ============ 观察条目卡片 ============ */
.entry-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:24px}
.entry-card{
  position:relative;
  display:flex;flex-direction:column;
  border:1px solid var(--c-line);
  border-radius:var(--r-card);
  background:var(--c-surface);
  overflow:hidden;
  transition:border-color .22s var(--ease),box-shadow .22s var(--ease),transform .22s var(--ease);
}
.entry-card:hover{border-color:rgba(43,179,232,.4);box-shadow:var(--elev-2);transform:translateY(-3px)}
.entry-thumb{position:relative;aspect-ratio:16/9;overflow:hidden}
.entry-thumb img{width:100%;height:100%;object-fit:cover;border-radius:0;transition:transform .22s var(--ease)}
.entry-card:hover .entry-thumb img{transform:scale(1.04)}
.entry-thumb .badge{
  position:absolute;top:12px;left:12px;
  background:rgba(8,10,24,.82);border-color:var(--c-primary-soft-2);
  color:var(--c-primary);backdrop-filter:none;
}
.entry-body{padding:22px 22px 24px;display:flex;flex-direction:column;flex:1}
.entry-title{font-size:19px;margin-bottom:10px}
.entry-desc{
  font-size:14.5px;color:var(--c-text-2);
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
  margin-bottom:18px;
}
.entry-meta{
  margin-top:auto;display:flex;align-items:center;gap:12px;flex-wrap:wrap;
  font-size:12.5px;color:var(--c-text-3);
}
.entry-meta time{font-variant-numeric:tabular-nums}
.entry-meta .dot{opacity:.6}
.entry-more{margin-left:auto;color:var(--c-primary);font-weight:600}
.entry-card:hover .entry-more{text-decoration:underline}

/* ============ 深度专题长条 ============ */
.digest-list{display:flex;flex-direction:column;gap:16px}
.digest-item{
  display:flex;gap:20px;align-items:center;
  padding:18px;
  border:1px solid var(--c-line);
  border-radius:var(--r-card);
  background:var(--c-surface);
  transition:border-color .22s var(--ease),transform .22s var(--ease),box-shadow .22s var(--ease);
}
.digest-item:hover{border-color:rgba(43,179,232,.4);transform:translateY(-3px);box-shadow:var(--elev-1)}
.digest-thumb{flex:0 0 132px;width:132px;aspect-ratio:1/1;overflow:hidden;border-radius:var(--r-img)}
.digest-thumb img{width:100%;height:100%;object-fit:cover;border-radius:0}
.digest-content{flex:1;min-width:0}
.digest-idx{
  font-size:12px;color:var(--c-accent-2);letter-spacing:.14em;
  font-variant-numeric:tabular-nums;
}
.digest-content h3{font-size:18px;margin:6px 0 8px}
.digest-content p{
  font-size:14px;color:var(--c-text-2);
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.digest-side{
  flex:0 0 auto;display:flex;flex-direction:column;align-items:flex-end;gap:8px;
  font-size:12.5px;color:var(--c-text-3);
}
.tag{
  display:inline-flex;align-items:center;
  padding:3px 10px;border-radius:var(--r-pill);
  font-size:12px;border:1px solid var(--c-line-strong);color:var(--c-text-2);background:rgba(255,255,255,.02);
}
.tag-primary{border-color:var(--c-primary-soft-2);color:var(--c-primary);background:var(--c-primary-soft)}
.tag-accent{border-color:rgba(255,61,127,.4);color:#FF7AA6;background:rgba(255,61,127,.1)}

/* ============ 横向卡带 ============ */
.rail-wrap{position:relative}
.rail{
  display:grid;grid-auto-flow:column;grid-auto-columns:minmax(250px,1fr);
  gap:18px;overflow-x:auto;padding:4px 4px 18px;
  scroll-snap-type:x proximity;
}
.rail::-webkit-scrollbar{height:6px}
.rail::-webkit-scrollbar-thumb{background:var(--c-line-strong);border-radius:999px}
.rail-card{
  scroll-snap-align:start;
  border:1px solid var(--c-line);border-radius:var(--r-card);
  background:var(--c-surface);overflow:hidden;
  transition:border-color .22s var(--ease),transform .22s var(--ease);
}
.rail-card:hover{border-color:rgba(43,179,232,.4);transform:translateY(-3px)}
.rail-card img{width:100%;aspect-ratio:4/3;object-fit:cover;border-radius:0}
.rail-body{padding:16px 18px 20px}
.rail-body h4{font-size:16px;margin-bottom:8px}
.rail-body p{font-size:13.5px;color:var(--c-text-2);line-height:1.75}
.rail-body .rail-link{display:inline-block;margin-top:12px;font-size:13px;color:var(--c-primary);font-weight:600}

/* ============ CTA 星轨条 ============ */
.cta-bar{
  position:relative;
  display:flex;align-items:center;justify-content:space-between;gap:24px;flex-wrap:wrap;
  padding:30px 32px;
  border:1px solid var(--c-line-strong);
  border-radius:var(--r-card);
  background:linear-gradient(100deg,rgba(43,179,232,.14) 0%,rgba(20,24,52,.9) 55%,rgba(255,61,127,.1) 100%);
  overflow:hidden;
}
.cta-bar::before{
  content:"";position:absolute;top:0;left:0;right:0;height:1px;
  background:linear-gradient(90deg,transparent,var(--c-primary-soft-2),var(--c-accent-2),var(--c-primary-soft-2),transparent);
}
.cta-text strong{display:block;font-size:19px;margin-bottom:6px}
.cta-text span{font-size:14px;color:var(--c-text-2)}
.cta-actions{display:flex;gap:12px;flex-wrap:wrap}

/* ============ FAQ ============ */
.faq{display:flex;flex-direction:column;gap:12px}
.faq-item{
  border:1px solid var(--c-line);
  border-radius:var(--r-card);
  background:var(--c-surface);
  overflow:hidden;
  transition:border-color .22s var(--ease);
}
.faq-item:hover{border-color:var(--c-line-strong)}
.faq-item.is-open{border-color:var(--c-primary-soft-2)}
.faq-q{
  width:100%;
  display:flex;align-items:center;gap:16px;
  min-height:56px;padding:14px 20px;
  text-align:left;font-size:16px;font-weight:600;
  position:relative;
}
.faq-q::before{
  content:"";position:absolute;left:0;top:12px;bottom:12px;width:4px;
  border-radius:0 4px 4px 0;background:var(--c-primary);opacity:.35;
  transition:opacity .2s var(--ease);
}
.faq-item.is-open .faq-q::before{opacity:1}
.faq-idx{font-size:12.5px;color:var(--c-text-3);font-variant-numeric:tabular-nums;letter-spacing:.08em}
.faq-text{flex:1}
.faq-ico{
  width:26px;height:26px;flex:0 0 26px;border-radius:8px;
  border:1px solid var(--c-line-strong);
  display:grid;place-items:center;font-size:11px;color:var(--c-text-2);
  transition:transform .22s var(--ease),color .22s var(--ease),border-color .22s var(--ease);
}
.faq-item.is-open .faq-ico{transform:rotate(45deg);color:var(--c-primary);border-color:var(--c-primary)}
.faq-a{
  max-height:0;overflow:hidden;
  background:#0C0F26;
  transition:max-height .26s var(--ease);
}
.faq-a p{
  padding:4px 24px 20px 44px;
  font-size:15px;line-height:1.8;color:var(--c-text-2);
}

/* ============ 页脚 ============ */
.footer{
  position:relative;
  background:#060814;
  padding:64px 0 28px;
  border-top:1px solid var(--c-line);
}
.footer::before{
  content:"";position:absolute;top:-1px;left:0;right:0;height:1px;
  background:linear-gradient(90deg,transparent,rgba(43,179,232,.6),rgba(255,200,87,.5),transparent);
}
.footer-grid{
  display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;
  gap:40px;padding-bottom:36px;
}
.footer-brand .brand-name{display:block;font-size:17px;margin-bottom:14px}
.footer-brand p{font-size:13.5px;color:var(--c-text-2);line-height:1.85;max-width:360px}
.footer h5{font-size:14px;color:var(--c-text);margin-bottom:16px;letter-spacing:.04em}
.footer-links{display:flex;flex-direction:column;gap:10px}
.footer-links a{font-size:13.5px;color:var(--c-text-2);transition:color .16s var(--ease)}
.footer-links a:hover{color:var(--c-primary)}
.footer-bottom{
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  padding-top:22px;border-top:1px solid var(--c-line);
  font-size:12.5px;color:var(--c-text-3);
}
.footer-bottom .dot{margin:0 8px;opacity:.6}

/* ============ Toast ============ */
.toast{
  position:fixed;left:50%;bottom:32px;transform:translate(-50%,20px);
  padding:12px 22px;border-radius:var(--r-pill);
  background:rgba(12,15,38,.96);
  border:1px solid var(--c-line-strong);
  font-size:13.5px;color:var(--c-text);
  opacity:0;pointer-events:none;z-index:120;
  transition:opacity .22s var(--ease),transform .22s var(--ease);
}
.toast.is-show{opacity:1;transform:translate(-50%,0)}
.toast.is-ok{border-color:var(--c-ok);color:#B8F0D2}
.toast.is-err{border-color:var(--c-err);color:#FFC3CF}

/* ============ 响应式 ============ */
@media (max-width:1279px) and (min-width:1024px){
  :root{--sidebar:80px}
  .brand{justify-content:center;padding:6px 0 20px}
  .brand-text{display:none}
  .nav-item{justify-content:center;padding:12px 0}
  .nav-item .label{
    position:absolute;left:70px;top:50%;transform:translateY(-50%) translateX(-6px);
    background:var(--c-surface-2);border:1px solid var(--c-line-strong);
    padding:5px 12px;border-radius:8px;font-size:13px;
    opacity:0;pointer-events:none;white-space:nowrap;z-index:5;
    transition:opacity .16s var(--ease),transform .16s var(--ease);
  }
  .nav-item:hover .label,.nav-item:focus-visible .label{opacity:1;transform:translateY(-50%) translateX(0)}
  .nav-idx{display:none}
  .sidenav-foot .sidenav-copy{display:none}
  .mini-actions{flex-direction:column}
  .mini-btn .mini-txt{display:none}
}

@media (max-width:1023px){
  .topbar{display:flex}
  .sidenav{
    transform:translateX(-100%);
    width:280px;
    padding-top:20px;
  }
  .sidenav.is-open{transform:translateX(0)}
  .drawer-scrim{display:block}
  .main{margin-left:0;padding-top:56px}
  .footer{padding-bottom:24px}
}

@media (max-width:1023px){
  .section{padding:64px 0}
  .metrics{grid-template-columns:repeat(2,1fr)}
  .footer-grid{grid-template-columns:repeat(2,1fr);gap:32px}
}

@media (max-width:767px){
  .container{padding:0 18px}
  .hero{min-height:auto}
  .hero h1{font-size:30px}
  .hero-sub{font-size:15.5px}
  .hero-inner{padding-top:36px;padding-bottom:40px}
  .hero-deco{width:180px;opacity:.35}
  .section{padding:48px 0}
  .section-title{font-size:24px}
  .section-head{margin-bottom:28px;gap:14px}
  .metrics{grid-template-columns:1fr;gap:12px}
  .entry-grid{grid-template-columns:1fr}
  .entry-title{font-size:17px}
  .digest-item{flex-direction:column;align-items:flex-start;gap:14px}
  .digest-thumb{flex:0 0 auto;width:100%;aspect-ratio:16/9}
  .digest-side{flex-direction:row;align-items:center;gap:10px}
  .rail{grid-auto-columns:minmax(220px,80%)}
  .cta-bar{padding:24px 20px}
  .cta-actions{width:100%}
  .cta-actions .btn{flex:1 1 auto}
  .faq-a p{padding:4px 18px 18px 24px}
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .footer-bottom{flex-direction:column;align-items:flex-start;gap:8px}
}

@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation-duration:.001ms!important;animation-iteration-count:1!important;transition-duration:.001ms!important}
  html{scroll-behavior:auto}
}