/* roulang page: index */
:root{
  --space-900:#05070F;
  --space-800:#0A0F22;
  --space-700:#101733;
  --glass:rgba(20,28,58,.55);
  --glass-soft:rgba(20,28,58,.38);
  --glass-strong:rgba(20,28,58,.88);
  --line:rgba(140,170,255,.16);
  --line-mid:rgba(140,170,255,.30);
  --line-strong:rgba(140,170,255,.40);
  --primary:#4C6BFF;
  --primary-2:#6E86FF;
  --violet:#8B5CF6;
  --gold:#FFC46B;
  --cyan:#35E0D0;
  --text:#EAEEFF;
  --text-2:#A8B3D6;
  --text-3:#6C7899;
  --ok:#34D399;
  --warn:#FFB020;
  --danger:#FF6B6B;
  --r-card:16px;
  --r-btn:12px;
  --r-pill:999px;
  --r-input:10px;
  --r-img:14px;
  --shadow:0 1px 2px rgba(0,0,0,.4),0 8px 24px -12px rgba(76,107,255,.25);
  --shadow-up:0 2px 6px rgba(0,0,0,.45),0 18px 40px -18px rgba(76,107,255,.45);
  --glow:0 0 0 1px rgba(76,107,255,.35),0 0 24px -4px rgba(76,107,255,.55);
  --nav-w:240px;
  --t:200ms ease-out;
  --mono:"SFMono-Regular",Consolas,"Liberation Mono",Menlo,"Courier New",monospace;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--space-900);
  color:var(--text);
  font-family:"PingFang SC","HarmonyOS Sans","Source Han Sans SC","Microsoft YaHei",system-ui,sans-serif;
  font-size:16px;
  line-height:1.8;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
body::before{
  content:"";
  position:fixed;
  inset:0;
  z-index:0;
  pointer-events:none;
  background-image:
    radial-gradient(circle, rgba(255,255,255,.06) 1px, transparent 1px),
    radial-gradient(circle, rgba(255,255,255,.045) 1px, transparent 1px);
  background-size:260px 260px,420px 420px;
  background-position:0 0,120px 180px;
}
body::after{
  content:"";
  position:fixed;
  top:-45vh;
  left:0;
  right:0;
  height:85vh;
  z-index:0;
  pointer-events:none;
  background:
    radial-gradient(58% 58% at 56% 0%, rgba(76,107,255,.18), transparent 70%),
    radial-gradient(42% 42% at 18% 0%, rgba(139,92,246,.12), transparent 72%);
}
img{max-width:100%;height:auto;display:block;border-radius:var(--r-img);}
a{color:inherit;text-decoration:none;transition:color var(--t),background var(--t),border-color var(--t),transform var(--t),box-shadow var(--t);}
a:hover{color:var(--primary-2);}
button,input,select,textarea{font:inherit;color:inherit;}
button{background:none;border:0;cursor:pointer;}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4{margin:0;font-weight:700;letter-spacing:-.01em;line-height:1.3;}
h1{font-size:clamp(1.9rem,4.2vw,3.1rem);font-weight:800;}
h2{font-size:clamp(1.4rem,2.6vw,2rem);}
h3{font-size:1.15rem;}
p{margin:0;}
:focus-visible{outline:2px solid var(--cyan);outline-offset:2px;border-radius:6px;}
.mono{font-family:var(--mono);letter-spacing:.02em;}

/* ============ 布局容器 ============ */
.wrap{
  width:100%;
  max-width:1200px;
  margin:0 auto;
  padding:0 40px;
}
.site-main{
  position:relative;
  z-index:1;
  margin-left:var(--nav-w);
}
.section{padding:88px 0;position:relative;}
.section + .section{border-top:1px solid transparent;}
.sec-line{
  height:1px;
  background:linear-gradient(90deg,transparent,rgba(76,107,255,.35),transparent);
  border:0;
  margin:0;
}
.sec-head{
  display:flex;
  align-items:flex-end;
  justify-content:space-between;
  gap:24px;
  margin-bottom:40px;
}
.sec-head p{
  color:var(--text-2);
  margin-top:10px;
  max-width:640px;
  font-size:.95rem;
}
.sec-link{
  color:var(--primary-2);
  font-size:.9rem;
  white-space:nowrap;
  display:inline-flex;
  align-items:center;
  gap:6px;
  padding:8px 14px;
  border:1px solid var(--line);
  border-radius:var(--r-pill);
  background:var(--glass-soft);
}
.sec-link:hover{background:rgba(76,107,255,.14);border-color:var(--line-mid);color:var(--text);}
.eyebrow{
  display:inline-flex;
  align-items:center;
  gap:8px;
  font-size:.8125rem;
  color:var(--cyan);
  letter-spacing:.06em;
  text-transform:uppercase;
  margin-bottom:14px;
}
.eyebrow::before{
  content:"";
  width:18px;
  height:1px;
  background:linear-gradient(90deg,transparent,var(--cyan));
}

/* ============ 左侧导航 ============ */
.side-nav{
  position:fixed;
  top:0;left:0;bottom:0;
  width:var(--nav-w);
  z-index:1040;
  display:flex;
  flex-direction:column;
  padding:24px 16px 20px;
  background:linear-gradient(180deg,rgba(16,23,51,.94),rgba(10,15,34,.94));
  border-right:1px solid var(--line);
  backdrop-filter:blur(14px) saturate(120%);
  -webkit-backdrop-filter:blur(14px) saturate(120%);
}
.brand{
  display:flex;
  align-items:center;
  gap:12px;
  padding:10px 10px 20px;
  border-bottom:1px solid var(--line);
  margin-bottom:18px;
}
.brand-badge{
  width:40px;height:40px;
  flex:0 0 40px;
  border-radius:12px;
  display:grid;
  place-items:center;
  font-weight:800;
  font-size:1.05rem;
  color:#fff;
  background:linear-gradient(135deg,var(--primary),var(--violet));
  box-shadow:0 0 20px -6px rgba(76,107,255,.8);
}
.brand-text{display:flex;flex-direction:column;line-height:1.25;}
.brand-text strong{font-size:1.02rem;font-weight:800;letter-spacing:-.01em;}
.brand-text em{
  font-style:normal;
  font-size:.8125rem;
  color:var(--text-2);
  letter-spacing:.02em;
}
.brand:hover .brand-text em{color:var(--primary-2);}
.nav-list{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;
  height:44px;
  padding:0 12px;
  border-radius:10px;
  color:var(--text-2);
  font-size:.94rem;
  border:1px solid transparent;
}
.nav-item i{width:18px;font-size:1rem;text-align:center;color:var(--text-3);transition:color var(--t);}
.nav-item:hover{
  background:rgba(76,107,255,.10);
  color:var(--text);
  border-color:var(--line);
}
.nav-item:hover i{color:var(--primary-2);}
.nav-item.is-active{
  background:var(--glass);
  border-color:var(--line-mid);
  color:var(--text);
  font-weight:600;
  box-shadow:var(--shadow);
}
.nav-item.is-active i{color:var(--primary-2);}
.nav-item.is-active::before{
  content:"";
  position:absolute;
  left:-16px;top:8px;bottom:8px;
  width:3px;
  border-radius:0 3px 3px 0;
  background:linear-gradient(180deg,var(--primary),var(--violet));
  box-shadow:0 0 12px 1px rgba(76,107,255,.9);
}
.nav-foot{
  margin-top:16px;
  padding-top:16px;
  border-top:1px solid var(--line);
  display:flex;
  flex-direction:column;
  gap:12px;
}
.btn-mini{
  display:flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  height:40px;
  border-radius:var(--r-btn);
  font-size:.9rem;
  font-weight:600;
  color:#fff;
  background:linear-gradient(135deg,var(--primary),#5E5BFF);
  box-shadow:0 0 0 1px rgba(76,107,255,.35),0 0 20px -6px rgba(76,107,255,.75);
}
.btn-mini:hover{color:#fff;filter:brightness(1.08);transform:translateY(-1px);}
.nav-meta{
  display:flex;
  align-items:center;
  gap:8px;
  font-size:.72rem;
  letter-spacing:.04em;
  color:var(--text-3);
  font-family:var(--mono);
}
.dot{
  width:8px;height:8px;border-radius:50%;
  background:var(--cyan);
  box-shadow:0 0 10px 1px rgba(53,224,208,.85);
  animation:pulse 2.4s ease-in-out infinite;
}
@keyframes pulse{
  0%,100%{opacity:1;transform:scale(1);}
  50%{opacity:.45;transform:scale(.82);}
}

/* ============ 移动端顶栏 ============ */
.m-topbar{
  display:none;
  position:fixed;
  top:0;left:0;right:0;
  height:64px;
  z-index:1035;
  align-items:center;
  justify-content:space-between;
  padding:0 16px;
  background:rgba(10,15,34,.86);
  border-bottom:1px solid transparent;
  backdrop-filter:blur(12px) saturate(120%);
  -webkit-backdrop-filter:blur(12px) saturate(120%);
  transition:background var(--t),border-color var(--t);
}
.m-topbar.is-stuck{background:rgba(5,7,15,.94);border-bottom-color:var(--line);}
.m-topbar .brand{padding:0;border:0;margin:0;gap:10px;}
.m-topbar .brand-badge{width:34px;height:34px;flex:0 0 34px;border-radius:10px;font-size:.95rem;}
.m-topbar .brand-text strong{font-size:.95rem;}
.m-topbar .brand-text em{font-size:.72rem;}
.burger{
  width:42px;height:42px;
  border:1px solid var(--line);
  border-radius:12px;
  display:grid;
  place-items:center;
  color:var(--text);
  background:var(--glass-soft);
}
.burger:hover{border-color:var(--line-mid);color:var(--primary-2);}

/* ============ Offcanvas 抽屉 ============ */
.offcanvas.m-drawer{
  --bs-offcanvas-width:82vw;
  background:linear-gradient(180deg,rgba(16,23,51,.98),rgba(10,15,34,.99));
  border-right:1px solid var(--line-mid);
  border-radius:0;
  color:var(--text);
}
.m-drawer .offcanvas-header{
  border-bottom:1px solid var(--line);
  padding:20px 18px;
}
.m-drawer .offcanvas-body{padding:18px 14px 28px;display:flex;flex-direction:column;gap:16px;}
.m-drawer .btn-close{
  filter:invert(1) grayscale(1) brightness(2);
  opacity:.7;
}
.m-drawer .btn-close:hover{opacity:1;}
.offcanvas-backdrop{background:rgba(5,7,15,.78);}
.offcanvas-backdrop.show{opacity:1;}

/* ============ 按钮 ============ */
.btn-glow,
.btn-glass,
.btn-ghost{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:10px;
  height:52px;
  padding:0 28px;
  border-radius:var(--r-pill);
  font-size:.98rem;
  font-weight:600;
  letter-spacing:.01em;
  border:1px solid transparent;
  transition:all var(--t);
}
.btn-glow{
  color:#fff;
  background:linear-gradient(135deg,var(--primary),#6B5CFF);
  box-shadow:0 0 0 1px rgba(76,107,255,.4),0 0 26px -6px rgba(76,107,255,.8);
}
.btn-glow:hover{color:#fff;filter:brightness(1.1);box-shadow:0 0 0 1px rgba(76,107,255,.55),0 0 36px -4px rgba(76,107,255,1);transform:translateY(-2px);}
.btn-glow:active{transform:translateY(1px);}
.btn-glass{
  color:var(--text);
  background:var(--glass);
  border-color:var(--line-mid);
  backdrop-filter:blur(10px);
  -webkit-backdrop-filter:blur(10px);
}
.btn-glass:hover{color:var(--text);border-color:var(--line-strong);background:rgba(76,107,255,.16);transform:translateY(-2px);}
.btn-glass:active{transform:translateY(1px);}
.btn-ghost{
  height:44px;
  padding:0 20px;
  font-size:.9rem;
  color:var(--text-2);
  border-color:var(--line);
  background:transparent;
  border-radius:var(--r-btn);
}
.btn-ghost:hover{color:var(--text);border-color:var(--line-mid);background:var(--glass-soft);}

/* ============ Hero ============ */
.hero{padding:96px 0 72px;position:relative;}
.hero-grid{
  display:grid;
  grid-template-columns:1.05fr .95fr;
  gap:56px;
  align-items:center;
}
.hero-tag{
  display:inline-flex;
  align-items:center;
  gap:10px;
  padding:8px 16px;
  border-radius:var(--r-pill);
  border:1px solid var(--line);
  background:var(--glass-soft);
  font-size:.8125rem;
  color:var(--text-2);
  margin-bottom:22px;
}
.hero-tag .dot{width:6px;height:6px;}
.hero h1{margin-bottom:20px;}
.hero h1 span{
  background:linear-gradient(120deg,var(--primary-2),var(--violet));
  -webkit-background-clip:text;
  background-clip:text;
  color:transparent;
}
.hero-sub{
  font-size:1.05rem;
  color:var(--text-2);
  max-width:520px;
  margin-bottom:32px;
}
.hero-cta{display:flex;flex-wrap:wrap;gap:16px;margin-bottom:36px;}
.hero-metrics{
  display:flex;
  flex-wrap:wrap;
  gap:14px 32px;
  padding-top:24px;
  border-top:1px solid var(--line);
}
.metric{display:flex;flex-direction:column;gap:2px;}
.metric b{font-family:var(--mono);font-size:1rem;color:var(--text);font-weight:600;}
.metric span{font-size:.75rem;color:var(--text-3);letter-spacing:.06em;}
.hero-visual{position:relative;display:grid;place-items:center;}
.hero-visual::before{
  content:"";
  position:absolute;
  width:118%;
  aspect-ratio:1/1;
  border-radius:50%;
  background:radial-gradient(circle,rgba(76,107,255,.22),transparent 62%);
  filter:blur(6px);
  z-index:0;
}
.hero-arc{
  position:absolute;
  width:112%;
  aspect-ratio:1/1;
  border-radius:50%;
  border:1px solid rgba(76,107,255,.28);
  box-shadow:inset 0 0 60px -20px rgba(76,107,255,.6);
  transform:rotate(-18deg);
  z-index:0;
  mask-image:linear-gradient(180deg,#000 30%,transparent 78%);
  -webkit-mask-image:linear-gradient(180deg,#000 30%,transparent 78%);
}
.hero-shot{
  position:relative;
  z-index:1;
  width:100%;
  border-radius:20px;
  padding:12px;
  background:var(--glass);
  border:1px solid var(--line-mid);
  backdrop-filter:blur(14px) saturate(120%);
  -webkit-backdrop-filter:blur(14px) saturate(120%);
  box-shadow:var(--shadow-up);
}
.hero-shot .shot-bg{
  width:100%;
  height:120px;
  object-fit:cover;
  border-radius:12px;
  opacity:.6;
}
.hero-shot .shot-main{
  width:100%;
  margin-top:-40px;
  border-radius:14px;
  border:1px solid var(--line-mid);
  box-shadow:0 20px 40px -20px rgba(0,0,0,.9);
  position:relative;
}
.hero-shot .shot-chip{
  position:absolute;
  left:28px;bottom:28px;
  display:inline-flex;
  align-items:center;
  gap:8px;
  padding:8px 14px;
  border-radius:var(--r-pill);
  font-size:.8rem;
  font-family:var(--mono);
  color:#fff;
  background:rgba(10,15,34,.78);
  border:1px solid var(--line-mid);
  backdrop-filter:blur(8px);
}

/* ============ 轮播 ============ */
.shot-carousel{position:relative;padding-bottom:56px;}
.shot-carousel .carousel-item{padding:4px;}
.shot-card{
  border-radius:var(--r-card);
  background:var(--glass);
  border:1px solid var(--line-mid);
  padding:14px;
  backdrop-filter:blur(14px) saturate(120%);
  -webkit-backdrop-filter:blur(14px) saturate(120%);
  box-shadow:var(--shadow);
}
.shot-card img{
  width:100%;
  aspect-ratio:16/9;
  object-fit:cover;
  border-radius:14px;
  border:1px solid var(--line);
}
.shot-meta{padding:18px 8px 6px;}
.shot-meta p{color:var(--text-2);font-size:.92rem;margin-top:6px;}
.shot-carousel .carousel-indicators{
  bottom:0;
  margin:0;
  gap:10px;
}
.shot-carousel .carousel-indicators [data-bs-target]{
  width:10px;height:10px;
  border-radius:50%;
  background:rgba(140,170,255,.28);
  border:0;
  opacity:1;
  margin:0;
  transition:all var(--t);
}
.shot-carousel .carousel-indicators .active{
  background:var(--primary);
  box-shadow:0 0 12px 2px rgba(76,107,255,.85);
  transform:scale(1.15);
}
.shot-carousel .carousel-control-prev,
.shot-carousel .carousel-control-next{
  width:40px;height:40px;
  top:38%;
  opacity:1;
  border-radius:50%;
  background:var(--glass-strong);
  border:1px solid var(--line-mid);
  color:var(--text);
  align-items:center;
  justify-content:center;
  display:flex;
  backdrop-filter:blur(10px);
  -webkit-backdrop-filter:blur(10px);
}
.shot-carousel .carousel-control-prev{left:-6px;}
.shot-carousel .carousel-control-next{right:-6px;}
.shot-carousel .carousel-control-prev:hover,
.shot-carousel .carousel-control-next:hover{
  border-color:var(--primary);
  box-shadow:var(--glow);
  color:var(--primary-2);
}
.shot-carousel .carousel-control-prev-icon,
.shot-carousel .carousel-control-next-icon{width:16px;height:16px;}

/* ============ Bento 价值区 ============ */
.bento{
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:24px;
}
.bento-card{
  position:relative;
  border-radius:var(--r-card);
  padding:28px;
  background:var(--glass);
  border:1px solid var(--line);
  backdrop-filter:blur(14px) saturate(120%);
  -webkit-backdrop-filter:blur(14px) saturate(120%);
  box-shadow:var(--shadow);
  display:flex;
  flex-direction:column;
  gap:12px;
  overflow:hidden;
  transition:transform var(--t),border-color var(--t),box-shadow var(--t);
}
.bento-card::after{
  content:"";
  position:absolute;
  inset:0;
  border-radius:var(--r-card);
  padding:1px;
  background:linear-gradient(180deg,rgba(255,255,255,.10),transparent 55%);
  -webkit-mask:linear-gradient(#000,#000) content-box,linear-gradient(#000,#000);
  -webkit-mask-composite:xor;
  mask-composite:exclude;
  pointer-events:none;
}
.bento-card:hover{transform:translateY(-3px);border-color:var(--line-strong);box-shadow:var(--shadow-up);}
.bento-card p{color:var(--text-2);font-size:.92rem;}
.bento-icon{
  width:46px;height:46px;
  border-radius:12px;
  display:grid;
  place-items:center;
  font-size:1.05rem;
  color:var(--primary-2);
  background:rgba(76,107,255,.14);
  border:1px solid var(--line-mid);
}
.b-large{grid-column:span 2;grid-row:span 2;justify-content:flex-end;min-height:320px;}
.b-large .b-large-bg{
  position:absolute;
  inset:0;
  border-radius:var(--r-card);
  object-fit:cover;
  opacity:.22;
  z-index:-1;
}
.b-large h3{font-size:1.5rem;}
.b-large p{font-size:.98rem;max-width:420px;}
.b-large .badge-row{display:flex;flex-wrap:wrap;gap:8px;margin-top:6px;}
.b-mid{grid-column:span 2;}
.b-small{grid-column:span 1;}

/* ============ 徽章 ============ */
.badge-soft,
.badge-status,
.badge-ver{
  display:inline-flex;
  align-items:center;
  gap:6px;
  padding:4px 12px;
  border-radius:var(--r-pill);
  font-size:.75rem;
  line-height:1.7;
  letter-spacing:.02em;
}
.badge-soft{
  color:var(--primary-2);
  background:rgba(76,107,255,.14);
  border:1px solid rgba(76,107,255,.3);
}
.badge-status{
  color:var(--cyan);
  background:rgba(53,224,208,.10);
  border:1px solid rgba(53,224,208,.3);
}
.badge-ver{
  color:var(--gold);
  background:rgba(255,196,107,.10);
  border:1px solid rgba(255,196,107,.3);
  font-family:var(--mono);
}

/* ============ 资讯卡片 ============ */
.post-grid{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:24px;
}
.post-card{
  height:100%;
  display:flex;
  flex-direction:column;
  gap:14px;
  padding:24px;
  border-radius:var(--r-card);
  background:var(--glass);
  border:1px solid var(--line);
  box-shadow:var(--shadow);
  transition:transform var(--t),border-color var(--t),box-shadow var(--t);
}
.post-card:hover{transform:translateY(-3px);border-color:var(--line-strong);box-shadow:var(--shadow-up);}
.post-card h3{
  font-size:1.05rem;
  display:-webkit-box;
  -webkit-line-clamp:2;
  -webkit-box-orient:vertical;
  overflow:hidden;
}
.post-card p{
  color:var(--text-2);
  font-size:.9rem;
  display:-webkit-box;
  -webkit-line-clamp:2;
  -webkit-box-orient:vertical;
  overflow:hidden;
}
.post-time{
  margin-top:auto;
  font-family:var(--mono);
  font-size:.78rem;
  color:var(--text-3);
}
.empty-state{
  min-height:280px;
  display:flex;
  flex-direction:column;
  align-items:center;
  justify-content:center;
  gap:16px;
  text-align:center;
  padding:40px 24px;
  border-radius:var(--r-card);
  background:var(--glass-soft);
  border:1px dashed var(--line-mid);
}
.empty-state i{font-size:2rem;color:var(--text-3);}
.empty-state p{color:var(--text-2);font-size:.95rem;}

/* ============ 系统要求 ============ */
.req-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:24px;}
.req-card{
  border-radius:var(--r-card);
  padding:28px;
  background:var(--glass);
  border:1px solid var(--line);
  box-shadow:var(--shadow);
}
.req-card h3{display:flex;align-items:center;gap:10px;margin-bottom:18px;}
.req-card h3 i{color:var(--primary-2);}
.req-row{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  padding:12px 0;
  border-bottom:1px solid rgba(140,170,255,.09);
}
.req-row:last-child{border-bottom:0;}
.req-row span{color:var(--text-2);font-size:.9rem;}
.req-row b{font-family:var(--mono);font-size:.85rem;font-weight:500;color:var(--text);text-align:right;}

/* ============ 评价墙 ============ */
.voice-wall{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:24px;
  align-items:start;
}
.voice{
  border-radius:var(--r-card);
  padding:24px;
  background:var(--glass);
  border:1px solid var(--line);
  box-shadow:var(--shadow);
  display:flex;
  flex-direction:column;
  gap:14px;
  transition:transform var(--t),border-color var(--t),box-shadow var(--t);
}
.voice:hover{transform:translateY(-3px);border-color:var(--line-strong);box-shadow:var(--shadow-up);}
.voice:nth-child(2),
.voice:nth-child(5){margin-top:28px;}
.voice-top{display:flex;align-items:center;gap:12px;}
.avatar{
  width:42px;height:42px;
  border-radius:50%;
  display:grid;
  place-items:center;
  font-weight:700;
  font-size:.95rem;
  color:#fff;
  background:linear-gradient(135deg,var(--primary),var(--violet));
  flex:0 0 42px;
}
.voice-top strong{display:block;font-size:.95rem;}
.stars{color:var(--gold);font-size:.8rem;letter-spacing:2px;}
.voice p{color:var(--text-2);font-size:.92rem;}

/* ============ 下载区 ============ */
.dl-card{
  border-radius:20px;
  padding:40px;
  background:linear-gradient(160deg,rgba(30,40,80,.62),rgba(12,17,38,.72));
  border:1px solid var(--line-mid);
  box-shadow:var(--shadow-up);
  backdrop-filter:blur(14px) saturate(120%);
  -webkit-backdrop-filter:blur(14px) saturate(120%);
}
.dl-grid{
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:16px;
  margin-top:28px;
}
.dl-btn{
  display:flex;
  flex-direction:column;
  gap:4px;
  padding:18px 20px;
  border-radius:var(--r-btn);
  border:1px solid var(--line-mid);
  background:var(--glass-soft);
  transition:all var(--t);
}
.dl-btn .dl-name{font-weight:700;font-size:1rem;display:flex;align-items:center;gap:8px;}
.dl-btn .dl-name i{color:var(--primary-2);}
.dl-btn .dl-sub{font-family:var(--mono);font-size:.75rem;color:var(--text-3);}
.dl-btn:hover{transform:translateY(-3px);border-color:var(--primary);box-shadow:var(--glow);background:rgba(76,107,255,.14);}
.dl-btn.dl-ghost{
  grid-column:1 / -1;
  flex-direction:row;
  align-items:center;
  justify-content:center;
  gap:10px;
  padding:16px;
  border-style:dashed;
}
.dl-note{
  margin-top:22px;
  font-family:var(--mono);
  font-size:.76rem;
  color:var(--text-3);
  letter-spacing:.03em;
}

/* ============ FAQ ============ */
.faq-wrap{max-width:900px;}
.faq-wrap .accordion-item{
  background:var(--glass);
  border:1px solid var(--line);
  border-radius:var(--r-card) !important;
  margin-bottom:14px;
  overflow:hidden;
}
.faq-wrap .accordion-button{
  background:transparent;
  color:var(--text);
  font-weight:600;
  font-size:1rem;
  padding:20px 24px;
  box-shadow:none;
  gap:14px;
}
.faq-wrap .accordion-button:not(.collapsed){
  color:var(--primary-2);
  box-shadow:none;
}
.faq-wrap .accordion-button::after{
  content:"+";
  font-family:var(--mono);
  font-size:1.4rem;
  line-height:1;
  background-image:none;
  width:auto;height:auto;
  margin-left:auto;
  color:var(--primary-2);
  transition:transform var(--t);
  transform:none;
}
.faq-wrap .accordion-button:not(.collapsed)::after{
  content:"−";
  transform:rotate(180deg);
}
.faq-wrap .accordion-button:focus{box-shadow:none;border-color:transparent;}
.faq-wrap .accordion-button:focus-visible{outline:2px solid var(--cyan);outline-offset:-2px;}
.faq-wrap .accordion-item:has(.accordion-button:not(.collapsed)){
  border-color:rgba(76,107,255,.4);
  box-shadow:var(--shadow);
}
.faq-wrap .accordion-body{
  padding:0 24px 22px;
  color:var(--text-2);
  font-size:.94rem;
}

/* ============ 页脚 ============ */
.site-footer{
  position:relative;
  z-index:1;
  margin-top:0;
  background:linear-gradient(180deg,rgba(10,15,34,.6),rgba(5,7,15,.95));
  padding:64px 0 28px;
  margin-left:var(--nav-w);
}
.foot-line{
  height:1px;
  background:linear-gradient(90deg,transparent,rgba(76,107,255,.45),transparent);
  margin-bottom:56px;
}
.foot-grid{
  display:grid;
  grid-template-columns:1.5fr 1fr 1fr 1fr 1fr;
  gap:32px;
}
.foot-brand .brand{padding:0;border:0;margin-bottom:16px;}
.foot-brand p{color:var(--text-2);font-size:.88rem;max-width:320px;}
.foot-col h3{
  font-size:.82rem;
  letter-spacing:.08em;
  color:var(--text-3);
  text-transform:uppercase;
  margin-bottom:16px;
  font-weight:600;
}
.foot-col li{margin-bottom:10px;}
.foot-col a{color:var(--text-2);font-size:.9rem;}
.foot-col a:hover{color:var(--primary-2);}
.foot-legal{color:var(--text-3);font-size:.82rem;}
.foot-legal p{margin-bottom:10px;font-family:var(--mono);}
.foot-bottom{
  margin-top:48px;
  padding-top:24px;
  border-top:1px solid var(--line);
  display:flex;
  flex-wrap:wrap;
  justify-content:space-between;
  gap:14px;
  color:var(--text-3);
  font-size:.8rem;
}
.foot-bottom span{font-family:var(--mono);letter-spacing:.02em;}

/* ============ 响应式 ============ */
@media (min-width:1440px){
  :root{--nav-w:260px;}
  .wrap{max-width:1280px;}
}
@media (max-width:1199.98px){
  .bento{grid-template-columns:repeat(2,1fr);}
  .b-large{grid-column:span 2;grid-row:span 1;min-height:260px;}
  .b-mid{grid-column:span 2;}
  .b-small{grid-column:span 1;}
  .post-grid{grid-template-columns:repeat(2,1fr);}
  .dl-grid{grid-template-columns:repeat(2,1fr);}
  .voice-wall{grid-template-columns:repeat(2,1fr);}
  .voice:nth-child(5){margin-top:0;}
}
@media (max-width:991.98px){
  .side-nav{display:none;}
  .m-topbar{display:flex;}
  .site-main{margin-left:0;padding-top:64px;}
  .site-footer{margin-left:0;}
  .wrap{padding:0 24px;}
  .hero{padding:56px 0 48px;}
  .hero-grid{grid-template-columns:1fr;gap:36px;}
  .section{padding:64px 0;}
  .foot-grid{grid-template-columns:1fr 1fr 1fr;}
  .foot-brand{grid-column:1 / -1;}
  .shot-carousel .carousel-control-prev{left:2px;}
  .shot-carousel .carousel-control-next{right:2px;}
}
@media (max-width:767.98px){
  .req-grid{grid-template-columns:1fr;}
  .voice-wall{grid-template-columns:repeat(2,1fr);}
  .sec-head{flex-direction:column;align-items:flex-start;gap:14px;margin-bottom:28px;}
  .dl-card{padding:26px 20px;}
  .hero-metrics{gap:12px 22px;}
}
@media (max-width:575.98px){
  body::before,body::after{display:none;}
  .wrap{padding:0 16px;}
  .section{padding:56px 0;}
  .hero{padding:40px 0 40px;}
  .hero-cta{flex-direction:column;align-items:stretch;}
  .btn-glow,.btn-glass{width:100%;}
  .bento{grid-template-columns:1fr;}
  .b-large,.b-mid,.b-small{grid-column:span 1;min-height:0;}
  .post-grid{grid-template-columns:1fr;}
  .dl-grid{grid-template-columns:1fr;}
  .dl-btn.dl-ghost{flex-direction:column;}
  .voice-wall{
    display:flex;
    overflow-x:auto;
    scroll-snap-type:x mandatory;
    gap:16px;
    padding-bottom:10px;
    -webkit-overflow-scrolling:touch;
  }
  .voice{min-width:80%;scroll-snap-align:start;margin-top:0 !important;}
  .voice-wall::-webkit-scrollbar{height:6px;}
  .voice-wall::-webkit-scrollbar-thumb{background:rgba(140,170,255,.3);border-radius:999px;}
  .foot-grid{grid-template-columns:1fr 1fr;}
  .foot-brand{grid-column:1 / -1;}
  .req-row{flex-direction:column;align-items:flex-start;gap:4px;}
  .req-row b{text-align:left;}
  .dl-note{font-size:.72rem;}
}

/* roulang page: category1 */
:root{
  --space-900:#05070F;
  --space-800:#0A0F22;
  --space-700:#101733;
  --glass:rgba(20,28,58,.55);
  --line:rgba(140,170,255,.16);
  --line-strong:rgba(76,107,255,.4);
  --indigo:#4C6BFF;
  --nebula:#8B5CF6;
  --gold:#FFC46B;
  --cyan:#35E0D0;
  --text:#EAEEFF;
  --text-2:#A8B3D6;
  --text-3:#6C7899;
  --ok:#34D399;
  --warn:#FFB020;
  --danger:#FF6B6B;
  --r-card:16px;
  --r-btn:12px;
  --r-img:14px;
  --r-pill:999px;
  --r-input:10px;
  --sh-1:0 1px 2px rgba(0,0,0,.4), 0 8px 24px -12px rgba(76,107,255,.25);
  --sh-2:0 0 0 1px rgba(76,107,255,.35), 0 0 24px -4px rgba(76,107,255,.55);
  --font:"PingFang SC","HarmonyOS Sans","Source Han Sans SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  --mono:"SFMono-Regular",Consolas,"Roboto Mono","Courier New",monospace;
  --ease:200ms ease-out;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  background:var(--space-800);
  color:var(--text);
  font-family:var(--font);
  font-size:16px;
  line-height:1.75;
  overflow-x:hidden;
}
body::before{
  content:"";
  position:fixed;
  inset:0;
  background-image:radial-gradient(rgba(180,200,255,.5) 1px,transparent 1px);
  background-size:34px 34px;
  opacity:.05;
  pointer-events:none;
  z-index:0;
}
body::after{
  content:"";
  position:fixed;
  top:-320px;left:20%;
  width:900px;height:520px;
  background:radial-gradient(closest-side,rgba(76,107,255,.22),transparent 72%);
  filter:blur(10px);
  pointer-events:none;
  z-index:0;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
button,input,select,textarea{font:inherit;color:inherit}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4,p{margin:0}
:focus-visible{outline:2px solid var(--cyan);outline-offset:2px;border-radius:6px}

h1{font-size:clamp(1.9rem,4.2vw,3.1rem);font-weight:800;letter-spacing:-.01em;line-height:1.28}
h2{font-size:clamp(1.4rem,2.6vw,2rem);font-weight:700;letter-spacing:-.01em;line-height:1.35}
h3{font-size:1.15rem;font-weight:700;line-height:1.5}
.lead-2{font-size:1rem;color:var(--text-2)}
.mono{font-family:var(--mono);font-variant-numeric:tabular-nums}

/* ---------- 布局 ---------- */
.layout{display:grid;grid-template-columns:240px minmax(0,1fr);position:relative;z-index:1}
.content{min-width:0;display:flex;flex-direction:column;min-height:100vh}
.wrap{width:100%;max-width:1200px;margin:0 auto;padding:0 40px}
.section{padding:88px 0}
.section-tight{padding:64px 0}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:36px}
.section-head p{color:var(--text-2);margin-top:10px;max-width:640px}
.hair{height:1px;background:linear-gradient(90deg,transparent,rgba(76,107,255,.5),transparent);border:0;margin:0}

/* ---------- 左栏导航 ---------- */
.sidebar{
  position:sticky;top:0;
  height:100vh;
  display:flex;flex-direction:column;
  padding:26px 18px 22px;
  background:linear-gradient(180deg,rgba(10,15,34,.96),rgba(5,7,15,.96));
  border-right:1px solid var(--line);
}
.brand{display:flex;align-items:center;gap:12px;padding:6px 10px 18px}
.brand-badge{
  width:40px;height:40px;flex:0 0 40px;border-radius:12px;
  display:grid;place-items:center;
  background:linear-gradient(135deg,var(--indigo),var(--nebula));
  color:#fff;font-weight:800;font-size:1.05rem;
  box-shadow:0 0 22px -6px rgba(76,107,255,.8);
}
.brand-text{display:flex;flex-direction:column;line-height:1.25}
.brand-text strong{font-size:1rem;font-weight:800;letter-spacing:-.01em}
.brand-text em{font-style:normal;font-size:.8125rem;color:var(--text-2)}
.nav-list{display:flex;flex-direction:column;gap:4px;margin-top:6px}
.nav-item{
  position:relative;
  display:flex;align-items:center;gap:12px;
  height:44px;padding:0 12px;
  border-radius:var(--r-btn);
  color:var(--text-2);
  font-size:.9375rem;
  transition:background var(--ease),color var(--ease),transform var(--ease);
}
.nav-item i{width:18px;text-align:center;font-size:.95rem;color:var(--text-3);transition:color var(--ease)}
.nav-item::before{
  content:"";position:absolute;left:0;top:50%;transform:translateY(-50%) scaleY(0);
  width:3px;height:22px;border-radius:3px;
  background:linear-gradient(180deg,var(--indigo),var(--cyan));
  box-shadow:0 0 12px rgba(76,107,255,.9);
  transition:transform var(--ease);
}
.nav-item:hover{background:rgba(140,170,255,.08);color:var(--text);transform:translateX(2px)}
.nav-item:hover i{color:var(--indigo)}
.nav-item.is-active{
  background:var(--glass);
  color:#fff;
  box-shadow:inset 0 0 0 1px var(--line);
}
.nav-item.is-active i{color:var(--cyan)}
.nav-item.is-active::before{transform:translateY(-50%) scaleY(1)}
.side-foot{margin-top:auto;padding-top:18px;border-top:1px solid var(--line)}
.side-login{
  display:flex;align-items:center;justify-content:center;gap:8px;
  width:100%;height:42px;border-radius:var(--r-btn);
  background:linear-gradient(135deg,var(--indigo),var(--nebula));
  color:#fff;font-size:.875rem;font-weight:600;
  border:0;cursor:pointer;
  transition:filter var(--ease),transform var(--ease),box-shadow var(--ease);
  box-shadow:0 0 20px -8px rgba(76,107,255,.9);
}
.side-login:hover{filter:brightness(1.1);box-shadow:var(--sh-2)}
.side-login:active{transform:translateY(1px)}
.side-meta{display:flex;align-items:center;justify-content:space-between;margin-top:14px;font-size:.75rem;color:var(--text-3)}
.dot{display:inline-flex;align-items:center;gap:6px}
.dot::before{content:"";width:7px;height:7px;border-radius:50%;background:var(--cyan);box-shadow:0 0 10px var(--cyan)}

/* ---------- 移动端顶栏 ---------- */
.topbar{
  display:none;
  position:sticky;top:0;z-index:1030;
  align-items:center;justify-content:space-between;
  gap:12px;padding:10px 16px;
  background:rgba(5,7,15,.7);
  backdrop-filter:blur(14px) saturate(120%);
  border-bottom:1px solid transparent;
  transition:background var(--ease),border-color var(--ease);
}
.topbar.is-scrolled{background:rgba(5,7,15,.9);border-bottom-color:var(--line)}
.topbar .brand{padding:0}
.burger{
  width:42px;height:42px;border-radius:var(--r-btn);
  background:var(--glass);border:1px solid var(--line);
  color:var(--text);display:grid;place-items:center;cursor:pointer;
  transition:border-color var(--ease),color var(--ease);
}
.burger:hover{border-color:var(--line-strong);color:var(--cyan)}
.offcanvas.drawer{background:var(--space-900);border-left:1px solid var(--line);border-radius:0;width:290px}
.offcanvas.drawer .offcanvas-header{border-bottom:1px solid var(--line);padding:18px 20px}
.offcanvas.drawer .offcanvas-body{padding:16px}
.btn-close-x{background:none;border:0;color:var(--text-2);font-size:1.1rem;cursor:pointer}

/* ---------- Hero ---------- */
.page-hero{
  position:relative;
  padding:56px 0 48px;
  min-height:230px;
  background:linear-gradient(180deg,rgba(5,7,15,.72),rgba(10,15,34,.94)),url('/assets/images/backpic/back-1.webp') center/cover no-repeat;
  border-bottom:1px solid var(--line);
  overflow:hidden;
}
.page-hero::after{
  content:"";position:absolute;inset:auto 0 -1px 0;height:1px;
  background:linear-gradient(90deg,transparent,rgba(76,107,255,.6),transparent);
}
.crumb{display:flex;align-items:center;gap:8px;font-size:.8125rem;color:var(--text-3);margin-bottom:18px}
.crumb a{color:var(--text-2);transition:color var(--ease)}
.crumb a:hover{color:var(--cyan)}
.crumb .cur{color:var(--text-2);max-width:200px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.page-hero h1{margin-bottom:14px;max-width:900px}
.page-hero .hero-sub{color:var(--text-2);max-width:660px}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:28px}

/* ---------- 按钮 ---------- */
.btn-glow,.btn-ghost,.btn-quiet{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:13px 30px;border-radius:var(--r-pill);
  font-size:.9375rem;font-weight:600;cursor:pointer;border:0;
  transition:transform var(--ease),box-shadow var(--ease),filter var(--ease),background var(--ease),border-color var(--ease),color var(--ease);
}
.btn-glow{
  background:linear-gradient(135deg,var(--indigo),var(--nebula));
  color:#fff;
  box-shadow:0 0 24px -8px rgba(76,107,255,.9);
}
.btn-glow:hover{filter:brightness(1.12);box-shadow:var(--sh-2)}
.btn-glow:active{transform:translateY(1px)}
.btn-ghost{
  background:var(--glass);
  color:var(--text);
  border:1px solid var(--line);
  backdrop-filter:blur(14px) saturate(120%);
  border-radius:var(--r-btn);
  padding:12px 24px;
}
.btn-ghost:hover{border-color:var(--line-strong);color:#fff;transform:translateY(-2px)}
.btn-quiet{
  background:transparent;border:1px solid var(--line);color:var(--text-2);
  border-radius:var(--r-btn);padding:11px 20px;
}
.btn-quiet:hover{color:var(--cyan);border-color:rgba(53,224,208,.42)}
.link-more{color:var(--text-2);font-size:.875rem;display:inline-flex;align-items:center;gap:6px;transition:color var(--ease)}
.link-more:hover{color:var(--cyan)}

/* ---------- 通用卡片 ---------- */
.glass{
  position:relative;
  background:var(--glass);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  backdrop-filter:blur(14px) saturate(120%);
  box-shadow:var(--sh-1);
  transition:transform var(--ease),border-color var(--ease),box-shadow var(--ease);
}
.glass::before{
  content:"";position:absolute;inset:0;border-radius:inherit;pointer-events:none;
  background:linear-gradient(180deg,rgba(255,255,255,.07),transparent 42%);
}
.glass:hover{transform:translateY(-3px);border-color:var(--line-strong);box-shadow:0 1px 2px rgba(0,0,0,.4),0 16px 34px -18px rgba(76,107,255,.6)}
.badge-soft{
  display:inline-flex;align-items:center;gap:6px;
  padding:4px 12px;border-radius:var(--r-pill);
  font-size:.75rem;font-weight:600;
  background:rgba(76,107,255,.14);
  color:#A9BBFF;
  border:1px solid rgba(76,107,255,.28);
}
.badge-cyan{
  background:rgba(53,224,208,.12);color:var(--cyan);border-color:rgba(53,224,208,.3);
}
.badge-gold{
  background:rgba(255,196,107,.14);color:var(--gold);border-color:rgba(255,196,107,.32);
}

/* ---------- 时间轴 ---------- */
.timeline{position:relative;margin-top:12px}
.tl-item{position:relative;display:grid;grid-template-columns:56px minmax(0,1fr);gap:22px;padding-bottom:34px}
.tl-item:last-child{padding-bottom:0}
.tl-item::before{
  content:"";position:absolute;left:27px;top:58px;bottom:0;width:2px;
  background:linear-gradient(180deg,rgba(76,107,255,.55),rgba(76,107,255,.05));
}
.tl-item:last-child::before{display:none}
.tl-node{
  position:relative;z-index:1;
  width:56px;height:56px;border-radius:50%;
  display:grid;place-items:center;
  font-family:var(--mono);font-size:1.05rem;font-weight:700;color:#fff;
  background:rgba(20,28,58,.85);
  border:1px solid rgba(76,107,255,.42);
  box-shadow:var(--sh-2);
}
.tl-body{padding:18px 22px 20px}
.tl-body h3{margin-bottom:8px}
.tl-body p{color:var(--text-2);font-size:.9375rem}
.tl-body .steps-note{
  margin-top:12px;padding:12px 16px;border-radius:var(--r-btn);
  background:rgba(53,224,208,.07);
  border-left:3px solid var(--cyan);
  color:var(--text-2);font-size:.875rem;
}

/* ---------- 提示卡 ---------- */
.notice{padding:28px 30px}
.notice h3{display:flex;align-items:center;gap:10px;margin-bottom:16px}
.notice h3 i{color:var(--gold)}
.notice ul{display:grid;gap:12px}
.notice li{display:flex;gap:12px;color:var(--text-2);font-size:.9375rem}
.notice li::before{
  content:"";flex:0 0 8px;width:8px;height:8px;margin-top:10px;border-radius:3px;
  background:linear-gradient(135deg,var(--indigo),var(--cyan));
  box-shadow:0 0 10px rgba(76,107,255,.7);
}

/* ---------- 相关文章（横向卡） ---------- */
.hlist{display:grid;gap:18px}
.hcard{display:grid;grid-template-columns:220px minmax(0,1fr);overflow:hidden;padding:0}
.hcard .thumb{position:relative;min-height:168px;overflow:hidden}
.hcard .thumb img{width:100%;height:100%;object-fit:cover;border-radius:0;transition:transform 300ms ease-out}
.hcard:hover .thumb img{transform:scale(1.04)}
.hcard .thumb::after{content:"";position:absolute;inset:0;background:linear-gradient(90deg,rgba(10,15,34,.15),rgba(10,15,34,.72))}
.hcard .body{padding:22px 26px;display:flex;flex-direction:column;gap:10px}
.hcard h3{font-size:1.0625rem}
.hcard p{color:var(--text-2);font-size:.9375rem}
.hcard .meta{margin-top:auto;display:flex;align-items:center;gap:14px;color:var(--text-3);font-size:.8125rem}

/* ---------- FAQ ---------- */
.acc .accordion-item{background:transparent;border:0;margin-bottom:14px;overflow:visible}
.acc .accordion-header{background:transparent}
.acc .accordion-button{
  background:var(--glass) !important;
  color:var(--text) !important;
  border:1px solid var(--line);
  border-radius:var(--r-card) !important;
  padding:18px 22px;
  font-size:1rem;font-weight:600;
  backdrop-filter:blur(14px) saturate(120%);
  box-shadow:none !important;
  transition:border-color var(--ease),background var(--ease),color var(--ease);
}
.acc .accordion-button:hover{border-color:var(--line-strong)}
.acc .accordion-button:not(.collapsed){
  color:#fff !important;
  background:rgba(76,107,255,.12) !important;
  border-color:var(--line-strong);
}
.acc .accordion-button::after{
  content:"+";
  background-image:none !important;
  width:auto;height:auto;
  font-size:1.4rem;font-weight:400;line-height:1;
  color:var(--cyan);
  display:grid;place-items:center;
  transition:color var(--ease),transform var(--ease);
}
.acc .accordion-button:not(.collapsed)::after{content:"−";color:#fff;transform:none}
.acc .accordion-body{color:var(--text-2);font-size:.9375rem;padding:16px 22px 20px}

/* ---------- CTA 通栏 ---------- */
.cta-band{padding:38px 40px;display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:26px}
.cta-band h2{font-size:clamp(1.3rem,2.2vw,1.7rem);margin-bottom:8px}
.cta-band p{color:var(--text-2);font-size:.9375rem;max-width:560px}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px}

/* ---------- 页脚 ---------- */
.site-footer{margin-top:auto;background:linear-gradient(180deg,rgba(10,15,34,.6),var(--space-900));border-top:1px solid var(--line);padding:0 0 26px}
.foot-line{height:1px;background:linear-gradient(90deg,transparent,rgba(76,107,255,.7),transparent);margin-bottom:46px}
.foot-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr 1fr;gap:32px}
.foot-brand .brand{padding:0 0 14px}
.foot-brand p{color:var(--text-3);font-size:.875rem;max-width:330px}
.foot-col h3{font-size:.9375rem;margin-bottom:14px;color:var(--text)}
.foot-col ul{display:grid;gap:9px}
.foot-col a,.foot-col p{color:var(--text-3);font-size:.875rem;transition:color var(--ease)}
.foot-col a:hover{color:var(--cyan)}
.foot-legal p{font-family:var(--mono);letter-spacing:.01em}
.foot-bottom{
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:12px;
  margin-top:40px;padding-top:20px;border-top:1px solid var(--line);
  color:var(--text-3);font-size:.8125rem;
}
.foot-bottom span{font-family:var(--mono)}

/* ---------- 响应式 ---------- */
@media (min-width:1440px){
  .layout{grid-template-columns:260px minmax(0,1fr)}
  .wrap{max-width:1280px}
}
@media (max-width:1199px){
  .section{padding:76px 0}
}
@media (max-width:991px){
  .layout{grid-template-columns:minmax(0,1fr)}
  .sidebar{display:none}
  .topbar{display:flex}
  .wrap{padding:0 24px}
  .section{padding:64px 0}
  .section-tight{padding:52px 0}
  .glass,.btn-ghost,.acc .accordion-button,.tl-node{backdrop-filter:none}
  .glass,.btn-ghost,.acc .accordion-button{background:#101733}
  .tl-node{background:#101733}
  body::before,body::after{display:none}
  .foot-grid{grid-template-columns:1fr 1fr;gap:26px}
  .foot-brand{grid-column:1 / -1}
  .hcard{grid-template-columns:180px minmax(0,1fr)}
}
@media (max-width:767px){
  .section{padding:56px 0}
  .page-hero{padding:40px 0 36px;min-height:200px}
  .section-head{flex-direction:column;align-items:flex-start;gap:12px}
  .hcard{grid-template-columns:minmax(0,1fr)}
  .hcard .thumb{min-height:170px}
  .hcard .thumb::after{background:linear-gradient(180deg,rgba(10,15,34,.1),rgba(10,15,34,.7))}
  .cta-band{padding:28px 24px}
  .cta-actions{width:100%}
  .cta-actions .btn-glow,.cta-actions .btn-ghost{flex:1 1 100%}
  .notice{padding:22px 20px}
  .tl-item{grid-template-columns:44px minmax(0,1fr);gap:16px}
  .tl-node{width:44px;height:44px;font-size:.9375rem}
  .tl-item::before{left:21px;top:46px}
}
@media (max-width:575px){
  .wrap{padding:0 16px}
  .section{padding:48px 0}
  .hero-actions{width:100%}
  .hero-actions .btn-glow,.hero-actions .btn-ghost{flex:1 1 100%}
  .foot-grid{grid-template-columns:1fr;gap:22px}
  .foot-bottom{flex-direction:column;align-items:flex-start}
}
@media (prefers-reduced-motion:reduce){
  *{transition:none !important;animation:none !important}
}

/* roulang page: article */
:root{
  --space-900:#05070F;
  --space-800:#0A0F22;
  --space-700:#101733;
  --glass:rgba(20,28,58,.55);
  --glass-solid:#111935;
  --line:rgba(140,170,255,.16);
  --line-strong:rgba(140,170,255,.30);
  --primary:#4C6BFF;
  --violet:#8B5CF6;
  --gold:#FFC46B;
  --cyan:#35E0D0;
  --text:#EAEEFF;
  --text-2:#A8B3D6;
  --text-3:#6C7899;
  --ok:#34D399;
  --warn:#FFB020;
  --danger:#FF6B6B;
  --r-card:16px;
  --r-btn:12px;
  --r-pill:999px;
  --r-img:14px;
  --r-input:10px;
  --sh-1:0 1px 2px rgba(0,0,0,.4), 0 8px 24px -12px rgba(76,107,255,.25);
  --sh-2:0 1px 2px rgba(0,0,0,.45), 0 18px 40px -18px rgba(76,107,255,.45);
  --sh-glow:0 0 0 1px rgba(76,107,255,.35), 0 0 24px -4px rgba(76,107,255,.55);
  --mono:ui-monospace,"SFMono-Regular",Menlo,Consolas,"Liberation Mono","Courier New",monospace;
  --t:200ms ease-out;
  --sans:"PingFang SC","HarmonyOS Sans","Source Han Sans SC","Noto Sans SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  background:var(--space-800);
  color:var(--text);
  font-family:var(--sans);
  font-size:1rem;
  line-height:1.7;
  font-weight:400;
  letter-spacing:.002em;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
h1,h2,h3,h4{margin:0;font-weight:800;letter-spacing:-.01em;line-height:1.28;color:var(--text)}
p{margin:0}
a{color:var(--primary);text-decoration:none;transition:color var(--t),opacity var(--t)}
a:hover{color:#7C93FF}
img{max-width:100%;display:block;border-radius:var(--r-img)}
ul,ol{margin:0;padding:0;list-style:none}
button,input,textarea,select{font:inherit;color:inherit}
::selection{background:rgba(76,107,255,.35);color:#fff}
:focus-visible{outline:2px solid var(--cyan);outline-offset:3px;border-radius:4px}
.mono{font-family:var(--mono);font-variant-numeric:tabular-nums;letter-spacing:.01em}

/* 背景装饰 */
.bg-deco{position:fixed;inset:0;z-index:0;pointer-events:none;
  background:
    radial-gradient(900px 420px at 80% -12%, rgba(76,107,255,.28), transparent 62%),
    radial-gradient(680px 380px at 8% 2%, rgba(139,92,246,.18), transparent 66%);
}
.bg-deco::after{content:"";position:absolute;inset:0;opacity:.06;
  background-image:radial-gradient(#fff 1px, transparent 1px);
  background-size:34px 34px;
}

/* 左侧竖导航 */
.side-nav{
  position:fixed;top:0;left:0;bottom:0;width:240px;z-index:1040;
  display:flex;flex-direction:column;gap:24px;
  padding:24px 16px;
  background:linear-gradient(180deg,#0A0F22 0%,#070B19 100%);
  border-right:1px solid var(--line);
}
.brand{display:flex;align-items:center;gap:12px;padding:8px 8px 8px 6px;border-radius:12px;color:var(--text)}
.brand:hover{color:var(--text);background:rgba(76,107,255,.08)}
.brand-badge{
  flex:0 0 38px;width:38px;height:38px;border-radius:12px;
  display:grid;place-items:center;font-weight:800;font-size:1.05rem;color:#fff;
  background:linear-gradient(135deg,var(--primary),var(--violet));
  box-shadow:0 0 20px -4px rgba(76,107,255,.75);
}
.brand-text{display:flex;flex-direction:column;line-height:1.25;min-width:0}
.brand-text strong{font-size:1rem;font-weight:800;letter-spacing:-.01em;white-space:nowrap}
.brand-text em{font-style:normal;font-size:.75rem;color:var(--text-3);letter-spacing:.08em;white-space:nowrap}
.nav-list{display:flex;flex-direction:column;gap:4px;flex:1 1 auto}
.nav-item{
  position:relative;display:flex;align-items:center;gap:12px;
  height:44px;padding:0 12px;border-radius:10px;
  color:var(--text-2);font-size:.9375rem;font-weight:500;
  transition:background var(--t),color var(--t),transform var(--t);
}
.nav-item i{width:18px;text-align:center;font-size:.95rem;color:var(--text-3);transition:color var(--t)}
.nav-item:hover{background:rgba(140,170,255,.09);color:var(--text);transform:translateX(2px)}
.nav-item:hover i{color:var(--primary)}
.nav-item.is-active{
  color:#fff;
  background:linear-gradient(90deg,rgba(76,107,255,.22),rgba(20,28,58,.55));
  box-shadow:inset 0 0 0 1px rgba(140,170,255,.16);
  backdrop-filter:blur(14px) saturate(120%);
}
.nav-item.is-active i{color:var(--cyan)}
.nav-item.is-active::before{
  content:"";position:absolute;left:-16px;top:9px;bottom:9px;width:3px;border-radius:3px;
  background:linear-gradient(180deg,var(--primary),var(--cyan));
  box-shadow:0 0 12px rgba(76,107,255,.9);
}
.nav-foot{display:flex;flex-direction:column;gap:10px;padding-top:16px;border-top:1px solid var(--line)}
.status-row{display:flex;align-items:center;gap:8px;font-size:.75rem;color:var(--text-3)}
.status-row .dot{width:8px;height:8px;border-radius:50%;background:var(--cyan);box-shadow:0 0 10px var(--cyan)}
.nav-ver{font-family:var(--mono);font-size:.75rem;color:var(--text-3);letter-spacing:.04em}

/* 移动顶栏与抽屉 */
.mobile-top{
  display:none;position:fixed;top:0;left:0;right:0;height:64px;z-index:1050;
  align-items:center;justify-content:space-between;padding:0 16px;
  background:rgba(10,15,34,.82);border-bottom:1px solid transparent;
  transition:background var(--t),border-color var(--t),backdrop-filter var(--t);
}
.mobile-top.is-scrolled{background:rgba(10,15,34,.94);border-bottom-color:var(--line);backdrop-filter:blur(14px) saturate(120%)}
.brand-sm .brand-badge{flex-basis:34px;width:34px;height:34px;font-size:.95rem;border-radius:10px}
.brand-sm .brand-text strong{font-size:.9rem}
.brand-sm .brand-text em{font-size:.68rem}
.hamburger{
  width:44px;height:44px;border-radius:12px;border:1px solid var(--line);
  background:var(--glass);color:var(--text);display:grid;place-items:center;font-size:1.05rem;
  transition:border-color var(--t),background var(--t);
}
.hamburger:hover{border-color:var(--line-strong);background:rgba(76,107,255,.16)}
.nav-drawer{background:var(--space-900)!important;border-left:1px solid var(--line)!important;width:300px!important;border-radius:0!important}
.nav-drawer .offcanvas-body{display:flex;flex-direction:column;gap:20px;padding:20px 16px}
.nav-drawer .nav-item.is-active::before{left:-16px}

/* 容器与主结构 */
.page-body{position:relative;z-index:1;padding-left:240px;display:flex;flex-direction:column;min-height:100vh}
.wrap{width:100%;max-width:1200px;margin:0 auto;padding:0 40px}
main{flex:1 1 auto;padding:40px 0 88px}

/* 面包屑 */
.breadcrumb-row{display:flex;align-items:center;gap:10px;flex-wrap:wrap;font-size:.8125rem;color:var(--text-3);margin-bottom:28px}
.breadcrumb-row a{color:var(--text-3)}
.breadcrumb-row a:hover{color:var(--cyan)}
.breadcrumb-row .sep{color:rgba(140,170,255,.35)}
.breadcrumb-row .current{color:var(--text-2);max-width:320px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}

/* 徽章 */
.badge-soft{
  display:inline-flex;align-items:center;gap:6px;height:26px;padding:0 12px;border-radius:var(--r-pill);
  font-size:.75rem;font-weight:600;letter-spacing:.02em;
  background:rgba(76,107,255,.14);color:#9FB2FF;border:1px solid rgba(140,170,255,.20);
}
.badge-cat{background:rgba(139,92,246,.16);color:#C4B0FF;border-color:rgba(139,92,246,.32)}
.badge-ok{background:rgba(53,224,208,.12);color:var(--cyan);border-color:rgba(53,224,208,.28)}
.badge-gold{background:rgba(255,196,107,.12);color:var(--gold);border-color:rgba(255,196,107,.28)}

/* 按钮 */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:44px;padding:0 22px;border-radius:var(--r-btn);border:1px solid transparent;
  font-size:.9375rem;font-weight:600;cursor:pointer;white-space:nowrap;
  transition:transform var(--t),box-shadow var(--t),background var(--t),border-color var(--t),color var(--t);
}
.btn:hover{color:#fff}
.btn:active{transform:translateY(1px)}
.btn-primary{
  background:linear-gradient(135deg,var(--primary),var(--violet));color:#fff;
  box-shadow:0 0 0 1px rgba(76,107,255,.35), 0 10px 28px -14px rgba(76,107,255,.9);
}
.btn-primary:hover{box-shadow:0 0 0 1px rgba(76,107,255,.55), 0 0 26px -2px rgba(76,107,255,.65);transform:translateY(-2px)}
.btn-glass{
  background:var(--glass);color:var(--text);border-color:var(--line);
  backdrop-filter:blur(14px) saturate(120%);
}
.btn-glass:hover{border-color:var(--line-strong);background:rgba(76,107,255,.16);transform:translateY(-2px)}
.btn-ghost{background:transparent;color:var(--text-2);border-color:transparent;padding:0 12px}
.btn-ghost:hover{color:var(--cyan)}
.btn-sm{height:38px;padding:0 16px;font-size:.875rem;border-radius:10px}
.btn-block{width:100%}

/* 文章头部 */
.article-head{max-width:820px;display:flex;flex-direction:column;gap:16px;margin-bottom:28px}
.article-head h1{
  font-size:clamp(1.7rem,3.4vw,2.5rem);
  line-height:1.3;font-weight:800;letter-spacing:-.015em;
}
.meta-row{display:flex;align-items:center;gap:18px;flex-wrap:wrap;font-size:.8125rem;color:var(--text-3)}
.meta-row span{display:inline-flex;align-items:center;gap:7px}
.meta-row i{color:var(--primary);font-size:.8rem}
.star-divider{height:1px;width:100%;margin:0 0 40px;
  background:linear-gradient(90deg,transparent,rgba(76,107,255,.55),transparent);
}

/* 文章布局 */
.article-layout{display:grid;grid-template-columns:minmax(0,1fr);gap:48px;align-items:start}
.article-main{max-width:760px;width:100%}
.article-body{font-size:1rem;line-height:1.85;color:#DCE2F8}
.article-body p{margin:18px 0;line-height:1.85}
.article-body h2{
  position:relative;padding-left:16px;margin:40px 0 16px;
  font-size:clamp(1.25rem,2.2vw,1.6rem);
}
.article-body h2::before{
  content:"";position:absolute;left:0;top:.32em;bottom:.32em;width:4px;border-radius:2px;
  background:linear-gradient(180deg,var(--primary),var(--violet));
  box-shadow:0 0 12px rgba(76,107,255,.75);
}
.article-body h3{margin:28px 0 12px;font-size:1.15rem;color:#fff}
.article-body a{color:var(--cyan);border-bottom:1px solid rgba(53,224,208,.35)}
.article-body a:hover{color:#6BF0E4}
.article-body strong{color:#fff;font-weight:700}
.article-body blockquote{
  margin:24px 0;padding:20px 22px;border-radius:var(--r-card);
  background:var(--glass);border-left:3px solid transparent;
  border-image:linear-gradient(180deg,var(--primary),var(--cyan)) 1;
  backdrop-filter:blur(14px) saturate(120%);
  color:var(--text-2);box-shadow:var(--sh-1);
}
.article-body blockquote p{margin:8px 0}
.article-body ul,.article-body ol{margin:18px 0;padding-left:4px}
.article-body li{position:relative;padding-left:20px;margin:10px 0;line-height:1.85}
.article-body ul > li::before{
  content:"";position:absolute;left:2px;top:.72em;width:7px;height:7px;border-radius:2px;
  background:var(--primary);box-shadow:0 0 8px rgba(76,107,255,.7);
}
.article-body ol{counter-reset:cmsoil}
.article-body ol > li{counter-increment:cmsoil}
.article-body ol > li::before{
  content:counter(cmsoil);position:absolute;left:0;top:.28em;
  font-family:var(--mono);font-size:.8rem;color:var(--primary);font-weight:700;
}
.article-body img{margin:24px auto;width:100%;border-radius:var(--r-img);box-shadow:var(--sh-1)}
.article-body pre{
  margin:24px 0;padding:18px 20px;border-radius:12px;overflow-x:auto;
  background:#070B19;border:1px solid var(--line);
  font-family:var(--mono);font-size:.875rem;line-height:1.7;color:#BFD0FF;
}
.article-body code{font-family:var(--mono);font-size:.875em;color:var(--cyan);background:rgba(53,224,208,.08);padding:2px 6px;border-radius:6px}
.article-body pre code{background:none;color:inherit;padding:0}
.article-body table{display:block;width:100%;overflow-x:auto;border-collapse:collapse;margin:24px 0;font-size:.9375rem}
.article-body thead th{
  position:sticky;top:0;background:var(--space-700);color:#fff;font-weight:700;
  text-align:left;padding:12px 14px;border-bottom:1px solid var(--line-strong);white-space:nowrap;
}
.article-body tbody td{padding:12px 14px;border-bottom:1px solid var(--line);color:var(--text-2)}
.article-body tbody tr:hover td{background:rgba(76,107,255,.06)}
.article-body hr{border:0;height:1px;margin:32px 0;background:linear-gradient(90deg,transparent,rgba(76,107,255,.5),transparent)}

/* 标签行与分享 */
.article-foot{margin-top:48px;padding-top:28px;border-top:1px solid var(--line);display:flex;flex-wrap:wrap;gap:20px;align-items:center;justify-content:space-between}
.tag-row{display:flex;flex-wrap:wrap;gap:10px}
.tag{
  display:inline-flex;align-items:center;height:30px;padding:0 14px;border-radius:var(--r-pill);
  background:var(--glass);border:1px solid var(--line);color:#9FB2FF;font-size:.8125rem;
  backdrop-filter:blur(14px) saturate(120%);transition:all var(--t);
}
.tag:hover{border-color:rgba(76,107,255,.5);color:#fff}
.share-row{display:flex;align-items:center;gap:10px;font-size:.8125rem;color:var(--text-3)}
.share-btn{
  width:36px;height:36px;border-radius:10px;display:grid;place-items:center;
  background:var(--glass);border:1px solid var(--line);color:var(--text-2);transition:all var(--t);
}
.share-btn:hover{color:var(--cyan);border-color:rgba(53,224,208,.45);transform:translateY(-2px)}

/* 侧栏 */
.article-aside{display:flex;flex-direction:column;gap:20px}
.side-card{
  border-radius:var(--r-card);padding:20px;
  background:var(--glass);border:1px solid var(--line);
  backdrop-filter:blur(14px) saturate(120%);box-shadow:var(--sh-1);
}
.side-card h2{font-size:.9375rem;font-weight:700;color:#fff;margin-bottom:14px;display:flex;align-items:center;gap:8px}
.side-card h2 i{color:var(--primary);font-size:.85rem}
.toc-list{display:flex;flex-direction:column;gap:2px;max-height:340px;overflow:auto}
.toc-list a{
  display:block;padding:8px 10px;border-left:2px solid transparent;border-radius:0 8px 8px 0;
  font-size:.875rem;color:var(--text-2);line-height:1.5;transition:all var(--t);
}
.toc-list a:hover{background:rgba(76,107,255,.10);color:#fff}
.toc-list a.is-current{border-left-color:var(--primary);background:rgba(76,107,255,.14);color:#fff}
.toc-empty{font-size:.8125rem;color:var(--text-3)}
.aside-cta{
  border-radius:var(--r-card);padding:22px;
  background:linear-gradient(160deg,rgba(76,107,255,.22),rgba(139,92,246,.14)),var(--glass-solid);
  border:1px solid rgba(140,170,255,.22);box-shadow:var(--sh-1);
}
.aside-cta h2{font-size:1rem;margin-bottom:8px}
.aside-cta p{font-size:.875rem;color:var(--text-2);line-height:1.7;margin-bottom:16px}
.aside-cta .btn{margin-bottom:10px}
.aside-note{font-family:var(--mono);font-size:.75rem;color:var(--text-3)}

/* 相关推荐 */
.related{margin-top:80px}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;margin-bottom:24px}
.section-head h2{font-size:clamp(1.3rem,2.4vw,1.75rem)}
.section-head p{font-size:.875rem;color:var(--text-3);margin-top:8px}
.card-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px}
.post-card{
  display:flex;flex-direction:column;overflow:hidden;
  border-radius:var(--r-card);background:var(--glass);border:1px solid var(--line);
  backdrop-filter:blur(14px) saturate(120%);box-shadow:var(--sh-1);
  transition:transform var(--t),border-color var(--t),box-shadow var(--t);
}
.post-card:hover{transform:translateY(-3px);border-color:rgba(76,107,255,.4);box-shadow:var(--sh-2)}
.post-thumb{position:relative;aspect-ratio:16/9;overflow:hidden}
.post-thumb img{width:100%;height:100%;object-fit:cover;border-radius:0;transition:transform 260ms ease-out}
.post-card:hover .post-thumb img{transform:scale(1.04)}
.post-thumb::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,transparent 40%,rgba(10,15,34,.75))}
.post-body{padding:18px 20px 20px;display:flex;flex-direction:column;gap:10px;flex:1 1 auto}
.post-body h3{font-size:1.05rem;line-height:1.5;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.post-body h3 a{color:var(--text)}
.post-body h3 a:hover{color:#fff}
.post-body p{font-size:.875rem;color:var(--text-3);line-height:1.7;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.post-meta{margin-top:auto;display:flex;align-items:center;justify-content:space-between;font-size:.75rem;color:var(--text-3)}
.related-empty{
  border-radius:var(--r-card);border:1px dashed var(--line);padding:28px;
  color:var(--text-3);font-size:.875rem;text-align:center;background:rgba(16,23,51,.4);
}
.related-more{margin-top:28px;display:flex;gap:16px;flex-wrap:wrap}

/* CTA 通栏 */
.cta-band{
  margin-top:80px;border-radius:var(--r-card);padding:40px;
  display:grid;grid-template-columns:1.4fr 1fr;gap:32px;align-items:center;
  background:linear-gradient(135deg,rgba(76,107,255,.20),rgba(139,92,246,.12)),var(--glass-solid);
  border:1px solid rgba(140,170,255,.22);box-shadow:var(--sh-2);
}
.cta-band h2{font-size:clamp(1.35rem,2.4vw,1.8rem);margin-bottom:10px}
.cta-band p{color:var(--text-2);font-size:.9375rem;line-height:1.8}
.cta-actions{display:flex;gap:14px;flex-wrap:wrap;justify-content:flex-end}
.cta-note{grid-column:1/-1;font-family:var(--mono);font-size:.75rem;color:var(--text-3);padding-top:8px;border-top:1px solid var(--line)}

/* 空态 */
.empty-state{
  max-width:760px;padding:56px 24px;border-radius:var(--r-card);
  border:1px dashed var(--line);background:rgba(16,23,51,.45);
  display:flex;flex-direction:column;align-items:center;gap:14px;text-align:center;
}
.empty-icon{
  width:64px;height:64px;border-radius:18px;display:grid;place-items:center;font-size:1.5rem;
  color:var(--primary);background:rgba(76,107,255,.12);border:1px solid rgba(76,107,255,.3);
}
.empty-state p{color:var(--text-2);font-size:.9375rem}

/* 页脚 */
.site-footer{position:relative;padding:64px 0 32px;background:linear-gradient(180deg,rgba(5,7,15,0),rgba(5,7,15,.85))}
.foot-line{height:1px;background:linear-gradient(90deg,transparent,rgba(76,107,255,.6),transparent);margin-bottom:40px}
.foot-grid{display:grid;grid-template-columns:1.7fr 1fr 1fr 1fr 1fr;gap:32px}
.foot-brand .brand{padding:0 0 14px}
.foot-brand p{font-size:.8125rem;color:var(--text-3);line-height:1.8;max-width:340px}
.foot-col h3{font-size:.875rem;color:#fff;margin-bottom:14px;font-weight:700}
.foot-col ul{display:flex;flex-direction:column;gap:10px}
.foot-col a{font-size:.8125rem;color:var(--text-3)}
.foot-col a:hover{color:var(--cyan)}
.foot-legal p{font-size:.8125rem;color:var(--text-3);font-family:var(--mono);margin-bottom:8px}
.foot-bottom{
  margin-top:40px;padding-top:22px;border-top:1px solid var(--line);
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:.8125rem;color:var(--text-3);
}
.foot-bottom span{font-family:var(--mono)}

/* 响应式 */
@media (min-width:1440px){
  .side-nav{width:260px}
  .page-body{padding-left:260px}
  .wrap{max-width:1280px}
}
@media (min-width:1200px){
  .article-layout{grid-template-columns:minmax(0,1fr) 300px}
  .article-aside{position:sticky;top:32px}
}
@media (max-width:1199.98px){
  .article-aside{flex-direction:row;flex-wrap:wrap}
  .article-aside > *{flex:1 1 280px}
}
@media (max-width:991.98px){
  .side-nav{display:none}
  .mobile-top{display:flex}
  .page-body{padding-left:0;padding-top:64px}
  .wrap{padding:0 24px}
  main{padding:28px 0 64px}
  .card-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:20px}
  .cta-band{grid-template-columns:1fr;padding:32px}
  .cta-actions{justify-content:flex-start}
  .foot-grid{grid-template-columns:1fr 1fr;gap:28px}
  .article-layout{gap:40px}
  .bg-deco::after{display:none}
}
@media (max-width:767.98px){
  .wrap{padding:0 20px}
  .article-head h1{font-size:clamp(1.5rem,6vw,1.9rem)}
  .card-grid{grid-template-columns:minmax(0,1fr)}
  .cta-band{padding:26px}
  .cta-actions{flex-direction:column;align-items:stretch}
  .cta-actions .btn{width:100%}
  .article-body{font-size:1rem;line-height:1.8}
  .article-foot{flex-direction:column;align-items:flex-start}
}
@media (max-width:575.98px){
  .wrap{padding:0 16px}
  .foot-grid{grid-template-columns:1fr}
  .article-aside > *{flex:1 1 100%}
  .bg-deco{display:none}
  .nav-drawer{width:86vw!important}
}

/* roulang page: category2 */
:root{
  --space-900:#05070F;
  --space-800:#0A0F22;
  --space-700:#101733;
  --glass:rgba(20,28,58,.55);
  --glass-2:rgba(16,23,51,.72);
  --line:rgba(140,170,255,.16);
  --line-strong:rgba(140,170,255,.32);
  --primary:#4C6BFF;
  --violet:#8B5CF6;
  --gold:#FFC46B;
  --cyan:#35E0D0;
  --text:#EAEEFF;
  --text-2:#A8B3D6;
  --text-3:#6C7899;
  --ok:#34D399;
  --warn:#FFB020;
  --danger:#FF6B6B;
  --r-card:16px;
  --r-btn:12px;
  --r-img:14px;
  --r-input:10px;
  --sh:0 1px 2px rgba(0,0,0,.4), 0 8px 24px -12px rgba(76,107,255,.25);
  --sh-glow:0 0 0 1px rgba(76,107,255,.35), 0 0 24px -4px rgba(76,107,255,.55);
  --mono:ui-monospace,SFMono-Regular,Menlo,Consolas,"Roboto Mono","Courier New",monospace;
  --nav-w:240px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  background:var(--space-800);
  color:var(--text);
  font-family:"PingFang SC","HarmonyOS Sans","Source Han Sans SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:16px;
  line-height:1.7;
  letter-spacing:.01em;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
body::before{
  content:"";position:fixed;inset:0;pointer-events:none;z-index:0;
  background-image:radial-gradient(rgba(180,200,255,.055) 1px,transparent 1px);
  background-size:26px 26px;
}
img{max-width:100%;height:auto;display:block;border-style:none}
a{color:inherit;text-decoration:none;transition:color .2s ease-out,background-color .2s ease-out,border-color .2s ease-out,box-shadow .2s ease-out,transform .2s ease-out}
a:hover{color:#fff}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4{margin:0;font-weight:800;letter-spacing:-.01em;line-height:1.3}
p{margin:0}
button{font:inherit;color:inherit;border:0;background:none;cursor:pointer}
:focus{outline:none}
:focus-visible{outline:2px solid var(--cyan);outline-offset:2px;border-radius:6px}
.mono{font-family:var(--mono);letter-spacing:0}
.wrap{width:100%;max-width:1200px;margin:0 auto;padding:0 40px;position:relative;z-index:1}
.img-cover{width:100%;height:100%;object-fit:cover;border-radius:var(--r-img)}

/* ============ 左侧竖导航 ============ */
.side-nav{
  position:fixed;left:0;top:0;bottom:0;width:var(--nav-w);z-index:1040;
  display:flex;flex-direction:column;gap:24px;
  padding:28px 18px 22px;
  background:linear-gradient(180deg,rgba(10,15,34,.96) 0%,rgba(5,7,15,.98) 100%);
  border-right:1px solid var(--line);
}
.side-nav::after{
  content:"";position:absolute;top:0;right:-1px;width:1px;height:220px;
  background:linear-gradient(180deg,transparent,rgba(76,107,255,.75),transparent);
}
.brand{display:flex;align-items:center;gap:12px;padding:4px 6px;border-radius:inherit}
.brand-badge{
  width:42px;height:42px;flex:0 0 42px;display:grid;place-items:center;
  border-radius:14px;font-weight:800;font-size:19px;color:#fff;
  background:linear-gradient(140deg,var(--primary),var(--violet));
  box-shadow:0 0 22px -6px rgba(76,107,255,.85);
}
.brand-text{display:flex;flex-direction:column;line-height:1.25}
.brand-text strong{font-size:15px;font-weight:800;letter-spacing:.02em}
.brand-text em{font-style:normal;font-size:12px;color:var(--text-2);letter-spacing:.06em}
.nav-list{display:flex;flex-direction:column;gap:6px;flex:1 1 auto}
.nav-item{
  position:relative;display:flex;align-items:center;gap:12px;
  height:44px;padding:0 14px;border-radius:12px;
  font-size:14.5px;color:var(--text-2);border:1px solid transparent;
}
.nav-item i{width:18px;text-align:center;font-size:14px;color:var(--text-3);transition:color .2s ease-out}
.nav-item:hover{background:rgba(76,107,255,.10);color:var(--text);transform:translateY(-1px)}
.nav-item:hover i{color:var(--primary)}
.nav-item.is-active{
  background:var(--glass);border-color:var(--line);
  color:#fff;backdrop-filter:blur(14px) saturate(120%);-webkit-backdrop-filter:blur(14px) saturate(120%);
}
.nav-item.is-active::before{
  content:"";position:absolute;left:0;top:10px;bottom:10px;width:3px;border-radius:3px;
  background:linear-gradient(180deg,var(--primary),var(--violet));
  box-shadow:0 0 12px rgba(76,107,255,.9);
}
.nav-item.is-active i{color:var(--primary)}
.nav-foot{display:flex;flex-direction:column;gap:12px;border-top:1px solid var(--line);padding-top:16px}
.nav-status{display:flex;align-items:center;gap:8px;font-size:11.5px;color:var(--text-3)}
.dot{width:8px;height:8px;border-radius:50%;background:var(--cyan);box-shadow:0 0 10px rgba(53,224,208,.9)}

/* ============ 移动端顶栏 ============ */
.topbar{
  position:sticky;top:0;z-index:1035;display:none;align-items:center;justify-content:space-between;
  gap:12px;padding:12px 16px;background:rgba(10,15,34,.86);
  border-bottom:1px solid transparent;transition:background-color .2s ease-out,border-color .2s ease-out;
}
.topbar.is-scrolled{background:rgba(5,7,15,.92);border-bottom-color:var(--line);backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px)}
.topbar .brand-badge{width:36px;height:36px;flex:0 0 36px;border-radius:12px;font-size:16px}
.topbar .brand-text strong{font-size:13.5px}
.topbar .brand-text em{font-size:11px}
.burger{
  width:44px;height:44px;display:grid;place-items:center;border-radius:12px;
  border:1px solid var(--line);background:var(--glass);color:var(--text);font-size:16px;
}
.burger:hover{border-color:var(--line-strong)}
.offcanvas{background:var(--space-800);color:var(--text);border:0;border-radius:0;width:290px}
.offcanvas-header{border-bottom:1px solid var(--line);padding:16px 18px}
.offcanvas-title{font-size:15px;font-weight:800}
.offcanvas-body{padding:16px 14px}
.offcanvas-backdrop{background:#05070F}
.offcanvas-backdrop.show{opacity:.74}
.btn-close{filter:invert(1) grayscale(1) brightness(1.6);opacity:.7}

/* ============ 通用按钮 ============ */
.btn-glow,.btn-glass,.btn-ghost{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:46px;padding:0 24px;border-radius:var(--r-btn);font-size:14.5px;font-weight:700;
  white-space:nowrap;
}
.btn-glow{
  color:#fff;background:linear-gradient(135deg,var(--primary),var(--violet));
  box-shadow:var(--sh-glow);
}
.btn-glow:hover{filter:brightness(1.1);box-shadow:0 0 0 1px rgba(76,107,255,.55),0 0 30px -2px rgba(76,107,255,.75);color:#fff}
.btn-glow:active{transform:translateY(1px)}
.btn-glass{
  color:var(--text);background:var(--glass);border:1px solid var(--line);
  backdrop-filter:blur(14px) saturate(120%);-webkit-backdrop-filter:blur(14px) saturate(120%);
}
.btn-glass:hover{border-color:var(--line-strong);background:rgba(28,38,74,.72);color:#fff;transform:translateY(-1px)}
.btn-ghost{color:var(--text-2);border:1px dashed var(--line-strong);padding:0 18px;height:42px;font-size:13.5px}
.btn-ghost:hover{color:#fff;border-color:var(--primary)}
.btn-pill{border-radius:999px}
.btn-sm{height:38px;padding:0 16px;font-size:13px;border-radius:10px}

/* ============ 徽章 ============ */
.badge-soft,.badge-soft-v,.badge-gold{
  display:inline-flex;align-items:center;gap:6px;height:24px;padding:0 10px;
  border-radius:999px;font-size:12px;font-weight:600;letter-spacing:.02em;
}
.badge-soft{color:#B9C6FF;background:rgba(76,107,255,.16);border:1px solid rgba(76,107,255,.36)}
.badge-soft-v{color:#D3C2FF;background:rgba(139,92,246,.16);border:1px solid rgba(139,92,246,.36)}
.badge-gold{color:var(--gold);background:rgba(255,196,107,.12);border:1px solid rgba(255,196,107,.34);font-family:var(--mono)}

/* ============ 面包屑 ============ */
.crumbs{display:flex;align-items:center;gap:8px;font-size:12.5px;color:var(--text-3);margin-bottom:20px;flex-wrap:wrap}
.crumbs a{color:var(--text-2)}
.crumbs a:hover{color:var(--primary)}
.crumbs span{color:var(--text-3);opacity:.6}
.crumbs em{font-style:normal;color:var(--text-2);max-width:220px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}

/* ============ Hero ============ */
.hero{position:relative;overflow:hidden;padding:64px 0 72px;border-bottom:1px solid var(--line)}
.hero-bg{
  position:absolute;inset:0;z-index:0;opacity:.34;
  background-image:url('/assets/images/backpic/back-2.png');
  background-size:cover;background-position:center;
}
.hero-bg::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(10,15,34,.62) 0%,rgba(10,15,34,.92) 72%,var(--space-800) 100%);
}
.hero-arc{
  position:absolute;z-index:0;left:50%;top:-320px;transform:translateX(-50%);
  width:1200px;height:640px;pointer-events:none;
  background:radial-gradient(closest-side,rgba(76,107,255,.22),transparent 72%);
}
.hero-inner{position:relative;z-index:1;max-width:820px}
.hero h1{font-size:clamp(1.9rem,4.2vw,3.1rem);margin-bottom:18px}
.hero-sub{font-size:clamp(1rem,1.5vw,1.125rem);color:var(--text-2);margin-bottom:28px;max-width:640px}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:32px}
.metrics{display:flex;flex-wrap:wrap;gap:12px}
.metric{
  display:flex;flex-direction:column;gap:2px;padding:12px 18px;border-radius:14px;
  background:var(--glass);border:1px solid var(--line);
  backdrop-filter:blur(14px) saturate(120%);-webkit-backdrop-filter:blur(14px) saturate(120%);
}
.metric b{font-family:var(--mono);font-size:16px;color:#fff;font-weight:700}
.metric span{font-size:12px;color:var(--text-3)}

/* ============ 板块 ============ */
.section{padding:88px 0;position:relative}
.section-alt{background:var(--space-700);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.sec-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:36px;flex-wrap:wrap}
.sec-head h2{font-size:clamp(1.4rem,2.6vw,2rem)}
.sec-lead{color:var(--text-2);font-size:14.5px;margin-top:10px;max-width:640px}
.link-more{font-size:13.5px;color:var(--primary);display:inline-flex;align-items:center;gap:6px;white-space:nowrap}
.link-more:hover{color:#fff;gap:10px}
.divider{
  height:1px;border:0;margin:0;
  background:linear-gradient(90deg,transparent,rgba(76,107,255,.3),transparent);
}

/* ============ 平台 Tab ============ */
.plat-tabs{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:28px;border:0;padding:0}
.plat-tab{
  height:44px;padding:0 22px;border-radius:999px;font-size:14px;font-weight:700;
  color:var(--text-2);background:var(--glass);border:1px solid var(--line);
  backdrop-filter:blur(14px) saturate(120%);-webkit-backdrop-filter:blur(14px) saturate(120%);
  transition:all .2s ease-out;display:inline-flex;align-items:center;gap:8px;
}
.plat-tab:hover{color:#fff;border-color:var(--line-strong);transform:translateY(-1px)}
.plat-tab.active{
  color:#fff;background:linear-gradient(135deg,rgba(76,107,255,.32),rgba(139,92,246,.28));
  border-color:rgba(76,107,255,.6);box-shadow:var(--sh-glow);
}
.plat-panel{display:grid;grid-template-columns:1.05fr 1fr;gap:32px;align-items:stretch}
.plat-shot{
  position:relative;border-radius:var(--r-card);overflow:hidden;
  border:1px solid var(--line);background:var(--glass);padding:12px;
  box-shadow:var(--sh);
}
.plat-shot img{border-radius:12px;width:100%;height:100%;object-fit:cover;aspect-ratio:4/3}
.plat-info{display:flex;flex-direction:column;gap:20px}
.point-list{display:flex;flex-direction:column;gap:12px}
.point-list li{display:flex;gap:10px;font-size:14.5px;color:var(--text-2)}
.point-list li i{color:var(--primary);margin-top:5px;font-size:12px}
.spec-table{border:1px solid var(--line);border-radius:var(--r-card);overflow:hidden;background:rgba(16,23,51,.5)}
.spec-row{display:flex;justify-content:space-between;gap:16px;padding:11px 16px;border-bottom:1px solid var(--line);font-size:13.5px}
.spec-row:last-child{border-bottom:0}
.spec-row span{color:var(--text-3)}
.spec-row b{font-family:var(--mono);font-weight:600;color:var(--text)}
.spec-row b.ok{color:var(--ok)}

/* ============ 安装步骤 ============ */
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:18px;position:relative}
.steps::before{
  content:"";position:absolute;left:2%;right:2%;top:26px;height:1px;
  background:linear-gradient(90deg,transparent,rgba(76,107,255,.45),rgba(139,92,246,.45),transparent);
}
.step{
  position:relative;padding:24px 20px;border-radius:var(--r-card);
  background:var(--glass);border:1px solid var(--line);
  backdrop-filter:blur(14px) saturate(120%);-webkit-backdrop-filter:blur(14px) saturate(120%);
  box-shadow:var(--sh);transition:all .2s ease-out;
}
.step:hover{transform:translateY(-3px);border-color:rgba(76,107,255,.4);box-shadow:var(--sh-glow)}
.step-num{
  width:44px;height:44px;border-radius:14px;display:grid;place-items:center;
  font-family:var(--mono);font-weight:700;font-size:16px;color:#fff;margin-bottom:16px;
  background:linear-gradient(140deg,var(--primary),var(--violet));
  box-shadow:0 0 20px -6px rgba(76,107,255,.9);
}
.step h3{font-size:1.15rem;margin-bottom:8px}
.step p{font-size:13.5px;color:var(--text-2)}

/* ============ 自检列表 ============ */
.check-grid{display:grid;grid-template-columns:1fr 1fr;gap:0 40px}
.check-row{
  display:flex;align-items:flex-start;gap:14px;padding:18px 0;border-bottom:1px solid var(--line);
}
.check-row i{
  width:26px;height:26px;flex:0 0 26px;border-radius:8px;display:grid;place-items:center;
  font-size:11px;color:var(--cyan);background:rgba(53,224,208,.12);border:1px solid rgba(53,224,208,.34);margin-top:2px;
}
.check-row div{display:flex;flex-direction:column;gap:4px}
.check-row strong{font-size:14.5px}
.check-row span{font-size:13px;color:var(--text-3)}

/* ============ 相关文章（横向卡） ============ */
.rel-list{display:flex;flex-direction:column;gap:16px}
.rel-card{
  display:grid;grid-template-columns:220px 1fr;gap:22px;align-items:center;
  padding:16px;border-radius:var(--r-card);background:var(--glass);border:1px solid var(--line);
  backdrop-filter:blur(14px) saturate(120%);-webkit-backdrop-filter:blur(14px) saturate(120%);
  box-shadow:var(--sh);transition:all .2s ease-out;
}
.rel-card:hover{transform:translateY(-3px);border-color:rgba(76,107,255,.4);box-shadow:var(--sh-glow)}
.rel-thumb{display:block;border-radius:12px;overflow:hidden;aspect-ratio:16/10;background:var(--space-700)}
.rel-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .2s ease-out}
.rel-card:hover .rel-thumb img{transform:scale(1.04)}
.rel-body{display:flex;flex-direction:column;gap:8px;align-items:flex-start}
.rel-body strong{font-size:1.05rem;font-weight:700;color:#fff}
.rel-card:hover .rel-body strong{color:#fff}
.rel-body em{font-style:normal;font-size:13.5px;color:var(--text-2);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.rel-meta{font-family:var(--mono);font-size:12px;color:var(--text-3)}

/* ============ CTA 通栏 ============ */
.cta-band{
  position:relative;overflow:hidden;padding:44px 40px;border-radius:20px;
  background:var(--glass-2);border:1px solid var(--line);
  backdrop-filter:blur(14px) saturate(120%);-webkit-backdrop-filter:blur(14px) saturate(120%);
  box-shadow:var(--sh);display:flex;align-items:center;justify-content:space-between;gap:32px;flex-wrap:wrap;
}
.cta-band::before{
  content:"";position:absolute;right:-120px;top:-120px;width:420px;height:420px;border-radius:50%;
  background:radial-gradient(closest-side,rgba(139,92,246,.24),transparent 70%);pointer-events:none;
}
.cta-band h2{font-size:clamp(1.3rem,2.3vw,1.75rem);margin-bottom:10px}
.cta-band p{color:var(--text-2);font-size:14px;max-width:520px}
.cta-actions{display:flex;gap:14px;flex-wrap:wrap}

/* ============ 页脚 ============ */
.site-footer{position:relative;background:var(--space-900);padding:0 0 32px;margin-top:0}
.foot-line{height:1px;background:linear-gradient(90deg,transparent,rgba(76,107,255,.55),transparent);margin-bottom:56px}
.foot-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr 1fr;gap:36px;padding-bottom:44px}
.foot-brand{display:flex;flex-direction:column;gap:16px;max-width:320px}
.foot-brand p{font-size:13px;color:var(--text-3);line-height:1.8}
.foot-col h3{font-size:13px;color:#fff;margin-bottom:16px;letter-spacing:.04em}
.foot-col ul{display:flex;flex-direction:column;gap:10px}
.foot-col a{font-size:13px;color:var(--text-2)}
.foot-col a:hover{color:var(--primary)}
.foot-col p{font-size:13px;color:var(--text-3);line-height:1.9}
.foot-legal p:first-child{font-family:var(--mono);color:var(--text-2)}
.foot-bottom{
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  border-top:1px solid var(--line);padding-top:22px;font-size:12.5px;color:var(--text-3);
}
.foot-bottom span{font-family:var(--mono);color:var(--text-3)}

/* ============ 响应式 ============ */
@media (min-width:992px){
  body{padding-left:var(--nav-w)}
  .site-footer{margin-left:0}
}
@media (min-width:1440px){
  :root{--nav-w:260px}
  .wrap{max-width:1280px}
  .side-nav{padding:32px 22px 24px}
}
@media (max-width:991px){
  .side-nav{display:none}
  .topbar{display:flex}
  .section{padding:64px 0}
  .hero{padding:48px 0 56px}
  .plat-panel{grid-template-columns:1fr}
  .steps{grid-template-columns:repeat(2,1fr)}
  .steps::before{display:none}
  .check-grid{grid-template-columns:1fr}
  .foot-grid{grid-template-columns:1fr 1fr;gap:28px}
  .foot-brand{grid-column:1 / -1;max-width:none}
  .cta-band{padding:36px 28px}
}
@media (max-width:767px){
  .wrap{padding:0 24px}
  .section{padding:56px 0}
  .rel-card{grid-template-columns:1fr}
  .rel-thumb{aspect-ratio:16/9}
  .cta-actions .btn-glow,.cta-actions .btn-glass{width:100%}
  .hero-actions{width:100%}
  .hero-actions .btn-glow,.hero-actions .btn-glass{width:100%}
  .cta-band{flex-direction:column;align-items:flex-start}
}
@media (max-width:575px){
  .wrap{padding:0 16px}
  .section{padding:56px 0}
  .plat-tabs{width:100%}
  .plat-tab{flex:1 1 auto;justify-content:center;padding:0 14px}
  .steps{grid-template-columns:1fr}
  .metric{flex:1 1 calc(50% - 8px)}
  .foot-grid{grid-template-columns:1fr;gap:26px}
  .spec-row{flex-direction:column;gap:4px}
  body::before{display:none}
  .hero-arc{display:none}
  .foot-line{margin-bottom:40px}
}
@media (prefers-reduced-motion:reduce){
  *{transition:none !important;animation:none !important}
}

/* roulang page: category3 */
:root{
  --space-900:#05070F;
  --space-800:#0A0F22;
  --space-700:#101733;
  --glass:rgba(20,28,58,.55);
  --line:rgba(140,170,255,.16);
  --line-strong:rgba(76,107,255,.40);
  --primary:#4C6BFF;
  --purple:#8B5CF6;
  --gold:#FFC46B;
  --cyan:#35E0D0;
  --ok:#34D399;
  --warn:#FFB020;
  --danger:#FF6B6B;
  --text:#EAEEFF;
  --text-2:#A8B3D6;
  --text-3:#6C7899;
  --r-card:16px;
  --r-btn:12px;
  --r-input:10px;
  --r-img:14px;
  --sh-1:0 1px 2px rgba(0,0,0,.4), 0 8px 24px -12px rgba(76,107,255,.25);
  --sh-2:0 1px 2px rgba(0,0,0,.45), 0 16px 34px -14px rgba(76,107,255,.42);
  --sh-glow:0 0 0 1px rgba(76,107,255,.35), 0 0 24px -4px rgba(76,107,255,.55);
  --mono:"JetBrains Mono", ui-monospace, SFMono-Regular, Menlo, Consolas, "Liberation Mono", monospace;
  --sans:"PingFang SC","HarmonyOS Sans","Source Han Sans SC","Noto Sans SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  --side-w:240px;
  --ease:200ms ease-out;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:var(--sans);
  font-size:1rem;
  line-height:1.75;
  color:var(--text);
  background-color:var(--space-800);
  background-image:
    radial-gradient(circle at 12% 8%, rgba(76,107,255,.16), transparent 42%),
    radial-gradient(circle at 88% 0%, rgba(139,92,246,.13), transparent 46%),
    radial-gradient(rgba(255,255,255,.055) 1px, transparent 1px);
  background-size:auto, auto, 26px 26px;
  background-attachment:fixed, fixed, scroll;
  -webkit-font-smoothing:antialiased;
}
a{color:inherit;text-decoration:none;transition:color var(--ease),border-color var(--ease),background-color var(--ease),box-shadow var(--ease),transform var(--ease)}
img{max-width:100%;height:auto;display:block}
button,input,select,textarea{font:inherit;color:inherit}
h1,h2,h3,h4{margin:0;font-weight:800;letter-spacing:-.01em;line-height:1.3}
p{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
.mono{font-family:var(--mono);letter-spacing:.02em}
a:focus-visible,button:focus-visible,.nav-item:focus-visible,.btn:focus-visible,input:focus-visible{
  outline:none;
  box-shadow:0 0 0 2px var(--cyan);
  border-radius:var(--r-btn);
}
::selection{background:rgba(76,107,255,.4);color:#fff}

/* ===== 布局骨架 ===== */
.app-shell{display:flex;align-items:flex-start;min-height:100vh}
.sidebar{
  position:fixed;top:0;left:0;z-index:60;
  width:var(--side-w);height:100vh;
  display:flex;flex-direction:column;gap:8px;
  padding:24px 16px 20px;
  background:rgba(8,12,28,.86);
  border-right:1px solid var(--line);
  backdrop-filter:blur(16px) saturate(120%);
}
.content{
  position:relative;
  margin-left:var(--side-w);
  width:calc(100% - var(--side-w));
  min-width:0;
}
.wrap{max-width:1200px;margin:0 auto;padding:0 40px}
.section{padding:88px 0}
.section-tight{padding:64px 0}
.divider-line{
  height:1px;border:0;margin:0;
  background:linear-gradient(90deg,transparent,rgba(76,107,255,.4),transparent);
}

/* ===== 品牌 ===== */
.brand{display:flex;align-items:center;gap:12px}
.brand-badge{
  flex:0 0 auto;width:40px;height:40px;border-radius:12px;
  display:grid;place-items:center;
  font-weight:800;font-size:1.05rem;color:#fff;
  background:linear-gradient(135deg,var(--primary),var(--purple));
  box-shadow:var(--sh-glow);
}
.brand-text{display:flex;flex-direction:column;line-height:1.25;min-width:0}
.brand-text strong{font-size:.95rem;color:#fff;font-weight:700}
.brand-text em{font-style:normal;font-size:.75rem;color:var(--text-3);letter-spacing:.06em}
.side-top{padding:6px 8px 18px;border-bottom:1px solid var(--line);margin-bottom:14px}

/* ===== 左侧导航 ===== */
.nav-list{display:flex;flex-direction:column;gap:4px}
.nav-item{
  position:relative;
  display:flex;align-items:center;gap:12px;
  height:44px;padding:0 14px;border-radius:10px;
  color:var(--text-2);font-size:.9rem;font-weight:500;
}
.nav-item i{width:18px;text-align:center;font-size:.85rem;color:var(--text-3);transition:color var(--ease)}
.nav-item:hover{background:rgba(255,255,255,.05);color:var(--text)}
.nav-item:hover i{color:var(--primary)}
.nav-item.is-active{background:rgba(76,107,255,.15);color:#fff;font-weight:600}
.nav-item.is-active i{color:var(--cyan)}
.nav-item.is-active::before{
  content:"";position:absolute;left:0;top:9px;bottom:9px;width:3px;border-radius:3px;
  background:var(--primary);box-shadow:0 0 12px 1px rgba(76,107,255,.85);
}
.side-foot{margin-top:auto;padding-top:16px;border-top:1px solid var(--line);display:flex;flex-direction:column;gap:10px}
.side-cta{
  display:flex;align-items:center;justify-content:center;gap:8px;
  height:40px;border-radius:var(--r-btn);font-size:.875rem;font-weight:600;color:#fff;
  background:linear-gradient(135deg,rgba(76,107,255,.95),rgba(139,92,246,.9));
  box-shadow:var(--sh-glow);
}
.side-cta:hover{transform:translateY(-1px);filter:brightness(1.08)}
.side-status{display:flex;align-items:center;gap:8px;font-size:.75rem;color:var(--text-3)}
.dot{width:8px;height:8px;border-radius:50%;background:var(--cyan);box-shadow:0 0 10px 1px rgba(53,224,208,.9);flex:0 0 auto}

/* ===== 移动端顶栏 ===== */
.mobile-bar{
  display:none;position:sticky;top:0;z-index:70;
  align-items:center;justify-content:space-between;gap:12px;
  padding:12px 16px;
  background:rgba(8,12,28,.82);
  border-bottom:1px solid var(--line);
  backdrop-filter:blur(16px) saturate(120%);
}
.burger{
  width:42px;height:42px;border-radius:12px;border:1px solid var(--line);
  background:rgba(20,28,58,.6);color:var(--text);display:grid;place-items:center;
}
.burger:hover{border-color:var(--line-strong);color:var(--cyan)}
.offcanvas.mv-drawer{background:var(--space-800);border-right:1px solid var(--line);border-radius:0;width:290px}
.offcanvas.mv-drawer .offcanvas-header{border-bottom:1px solid var(--line);padding:18px 18px}
.offcanvas.mv-drawer .offcanvas-body{padding:16px}
.offcanvas.mv-drawer .btn-close{filter:invert(1) grayscale(1);opacity:.6}
.offcanvas-backdrop{background:#02040a}

/* ===== 面包屑 ===== */
.crumbs{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:.8125rem;color:var(--text-3)}
.crumbs a{color:var(--text-2)}
.crumbs a:hover{color:var(--cyan)}
.crumbs .sep{opacity:.5}
.crumbs .now{color:var(--text);max-width:16em;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}

/* ===== Hero（窄幅） ===== */
.hero-band{
  position:relative;overflow:hidden;
  border-bottom:1px solid var(--line);
  background:#080d1e;
}
.hero-band::before{
  content:"";position:absolute;inset:0;
  background-image:linear-gradient(100deg,rgba(6,9,22,.94),rgba(8,12,28,.72) 55%,rgba(10,15,34,.9)),url("/assets/images/backpic/back-2.png");
  background-size:cover;background-position:center right;
  opacity:.9;
}
.hero-band::after{
  content:"";position:absolute;left:-10%;top:-140%;width:120%;height:280%;
  background:radial-gradient(closest-side,rgba(76,107,255,.22),transparent 70%);
  pointer-events:none;
}
.hero-inner{position:relative;z-index:2;padding:44px 0 48px;max-width:820px}
.hero-title{font-size:clamp(1.9rem,4.2vw,3.1rem);margin:16px 0 14px}
.hero-title .accent{background:linear-gradient(120deg,var(--cyan),var(--primary));-webkit-background-clip:text;background-clip:text;color:transparent}
.hero-lead{color:var(--text-2);font-size:1.0125rem;line-height:1.85;max-width:720px}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:26px}
.hero-metrics{display:flex;flex-wrap:wrap;gap:12px;margin-top:28px}
.metric{
  display:flex;align-items:center;gap:10px;padding:10px 16px;
  border:1px solid var(--line);border-radius:999px;
  background:rgba(16,23,51,.55);font-size:.8125rem;color:var(--text-2);
}
.metric b{font-family:var(--mono);color:#fff;font-weight:600}

/* ===== 按钮 ===== */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:12px 22px;border-radius:var(--r-btn);border:1px solid transparent;
  font-size:.9rem;font-weight:600;cursor:pointer;
  transition:transform var(--ease),box-shadow var(--ease),filter var(--ease),border-color var(--ease),background-color var(--ease);
}
.btn-pill{border-radius:999px;padding:14px 30px;font-size:.95rem}
.btn-glow{
  color:#fff;
  background:linear-gradient(135deg,var(--primary),var(--purple));
  box-shadow:var(--sh-glow);
}
.btn-glow:hover{filter:brightness(1.09);transform:translateY(-2px);box-shadow:0 0 0 1px rgba(76,107,255,.5),0 0 32px -2px rgba(76,107,255,.7)}
.btn-glow:active{transform:translateY(1px)}
.btn-line{
  color:var(--text);background:rgba(255,255,255,.045);
  border-color:var(--line);
}
.btn-line:hover{background:rgba(76,107,255,.14);border-color:var(--line-strong);transform:translateY(-2px)}
.btn-line:active{transform:translateY(1px)}
.btn-ghost{color:var(--cyan);background:transparent;border-color:rgba(53,224,208,.35);padding:10px 18px;border-radius:var(--r-btn)}
.btn-ghost:hover{background:rgba(53,224,208,.1);border-color:var(--cyan)}
.btn-block{width:100%}

/* ===== 徽章与标签 ===== */
.badge{
  display:inline-flex;align-items:center;gap:6px;
  padding:4px 12px;border-radius:999px;font-size:.75rem;font-weight:600;line-height:1.6;
  border:1px solid var(--line);background:rgba(20,28,58,.7);color:var(--text-2);
}
.badge-cat{color:var(--cyan);border-color:rgba(53,224,208,.3);background:rgba(53,224,208,.09)}
.badge-ver{font-family:var(--mono);color:var(--gold);border-color:rgba(255,196,107,.3);background:rgba(255,196,107,.08)}
.badge-ok{color:var(--ok);border-color:rgba(52,211,153,.32);background:rgba(52,211,153,.09)}
.tag-row{display:flex;flex-wrap:wrap;gap:10px}

/* ===== 通用卡片 ===== */
.glass{
  background:var(--glass);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  backdrop-filter:blur(14px) saturate(120%);
  box-shadow:var(--sh-1);
}
.card-pad{padding:26px}
.card-title{font-size:1.15rem;margin-bottom:10px}
.card-text{color:var(--text-2);font-size:.9125rem;line-height:1.8}

/* ===== 板块标题 ===== */
.sec-head{display:flex;flex-wrap:wrap;align-items:flex-end;justify-content:space-between;gap:16px;margin-bottom:36px}
.sec-head h2{font-size:clamp(1.4rem,2.6vw,2rem)}
.sec-head p{color:var(--text-2);font-size:.9125rem;margin-top:10px;max-width:680px}
.link-more{font-size:.875rem;color:var(--cyan);display:inline-flex;align-items:center;gap:6px}
.link-more:hover{gap:10px;color:#fff}

/* ===== 对照卡 ===== */
.compare{display:grid;grid-template-columns:1fr 1fr;gap:24px;align-items:start}
.compare-card{overflow:hidden}
.cc-head{
  display:flex;align-items:center;gap:12px;
  padding:20px 24px;font-size:1.05rem;font-weight:700;
  border-bottom:1px solid var(--line);
}
.cc-head i{width:34px;height:34px;border-radius:10px;display:grid;place-items:center;font-size:.9rem}
.cc-head.is-ok{color:var(--ok);background:linear-gradient(90deg,rgba(52,211,153,.12),transparent 70%)}
.cc-head.is-ok i{background:rgba(52,211,153,.14);border:1px solid rgba(52,211,153,.32)}
.cc-head.is-warn{color:var(--warn);background:linear-gradient(90deg,rgba(255,176,32,.12),transparent 70%)}
.cc-head.is-warn i{background:rgba(255,176,32,.14);border:1px solid rgba(255,176,32,.32)}
.cc-list{padding:6px 0}
.cc-item{display:flex;gap:14px;padding:16px 24px;border-bottom:1px dashed rgba(140,170,255,.1)}
.cc-item:last-child{border-bottom:0}
.cc-item i{margin-top:5px;font-size:.8rem;flex:0 0 auto}
.cc-item.is-ok i{color:var(--ok)}
.cc-item.is-warn i{color:var(--warn)}
.cc-item h3{font-size:.9375rem;font-weight:600;margin-bottom:4px}
.cc-item p{color:var(--text-2);font-size:.8625rem;line-height:1.75}

/* ===== 自查清单 ===== */
.check-list{display:grid;grid-template-columns:repeat(2,1fr);gap:14px}
.check-item{
  display:flex;gap:14px;align-items:flex-start;
  padding:18px 20px;border:1px solid var(--line);border-radius:14px;
  background:rgba(16,23,51,.62);
  transition:border-color var(--ease),transform var(--ease),box-shadow var(--ease);
}
.check-item:hover{border-color:var(--line-strong);transform:translateY(-3px);box-shadow:var(--sh-2)}
.box{
  flex:0 0 auto;width:22px;height:22px;border-radius:7px;margin-top:2px;
  border:1.5px solid rgba(140,170,255,.4);
  display:grid;place-items:center;color:var(--cyan);font-size:.7rem;
  background:rgba(53,224,208,.06);
}
.check-item h3{font-size:.9375rem;font-weight:600;margin-bottom:4px}
.check-item p{color:var(--text-2);font-size:.85rem;line-height:1.7}

/* ===== 设置项网格 ===== */
.tool-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.tool-card{padding:24px;display:flex;flex-direction:column;gap:12px;transition:transform var(--ease),border-color var(--ease),box-shadow var(--ease)}
.tool-card:hover{transform:translateY(-3px);border-color:var(--line-strong);box-shadow:var(--sh-2)}
.tool-ico{
  width:44px;height:44px;border-radius:12px;display:grid;place-items:center;
  background:rgba(76,107,255,.14);border:1px solid rgba(76,107,255,.3);color:var(--cyan);font-size:1rem;
}
.tool-card h3{font-size:1rem}
.tool-card p{color:var(--text-2);font-size:.8625rem;line-height:1.75}
.tool-meta{font-family:var(--mono);font-size:.75rem;color:var(--text-3);margin-top:auto}

/* ===== 相关文章（行式列表） ===== */
.post-rows{display:flex;flex-direction:column}
.post-row{
  display:grid;grid-template-columns:132px 1fr auto;gap:22px;align-items:center;
  padding:20px 4px;border-bottom:1px solid var(--line);
  transition:background-color var(--ease),padding var(--ease);
}
.post-row:first-child{border-top:1px solid var(--line)}
.post-row:hover{background:rgba(76,107,255,.08);padding-left:14px;padding-right:14px;border-radius:12px}
.post-row img{width:132px;height:82px;object-fit:cover;border-radius:var(--r-img);border:1px solid var(--line)}
.post-row h3{font-size:1rem;margin:8px 0 6px;line-height:1.5}
.post-row:hover h3{color:#fff}
.post-row p{color:var(--text-2);font-size:.85rem;line-height:1.7;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.post-meta{display:flex;flex-direction:column;align-items:flex-end;gap:8px;font-size:.75rem;color:var(--text-3)}
.post-meta .go{font-size:.8rem;color:var(--cyan)}

/* ===== FAQ（手风琴） ===== */
.accordion-item{
  background:rgba(16,23,51,.58)!important;
  border:1px solid var(--line)!important;
  border-radius:14px!important;
  margin-bottom:12px;overflow:hidden;
}
.accordion-button{
  background:transparent!important;
  color:var(--text)!important;
  font-weight:600;font-size:.95rem;
  padding:18px 22px;
  box-shadow:none!important;
}
.accordion-button:not(.collapsed){color:#fff!important;background:rgba(76,107,255,.1)!important}
.accordion-button::after{display:none!important}
.accordion-button .sign{position:relative;width:16px;height:16px;margin-left:auto;flex:0 0 auto}
.accordion-button .sign::before,
.accordion-button .sign::after{content:"";position:absolute;background:var(--cyan);border-radius:2px;transition:transform var(--ease)}
.accordion-button .sign::before{left:0;top:7px;width:16px;height:2px}
.accordion-button .sign::after{left:7px;top:0;width:2px;height:16px}
.accordion-button:not(.collapsed) .sign::after{transform:scaleY(0)}
.accordion-body{padding:2px 22px 20px;color:var(--text-2);font-size:.9rem;line-height:1.85}
.accordion-item:has(.accordion-button:not(.collapsed)){border-color:var(--line-strong)!important}

/* ===== CTA 通栏 ===== */
.cta-band{
  position:relative;overflow:hidden;
  border-radius:20px;padding:52px 44px;
  background:linear-gradient(135deg,rgba(76,107,255,.2),rgba(139,92,246,.14));
  border:1px solid var(--line-strong);
  box-shadow:var(--sh-2);
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:28px;
}
.cta-band::after{
  content:"";position:absolute;right:-80px;top:-120px;width:340px;height:340px;
  background:radial-gradient(closest-side,rgba(76,107,255,.35),transparent 72%);
  pointer-events:none;
}
.cta-band h2{font-size:clamp(1.4rem,2.6vw,2rem);margin-bottom:10px}
.cta-band p{color:var(--text-2);font-size:.9125rem;max-width:620px}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;position:relative;z-index:2}
.cta-note{margin-top:26px;font-family:var(--mono);font-size:.75rem;color:var(--text-3)}

/* ===== 页脚 ===== */
.site-footer{padding:64px 0 32px;border-top:1px solid var(--line);background:rgba(5,7,15,.72)}
.foot-line{height:1px;background:linear-gradient(90deg,transparent,rgba(76,107,255,.5),transparent);margin-bottom:48px}
.foot-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr 1fr;gap:32px}
.foot-brand p{color:var(--text-2);font-size:.85rem;line-height:1.85;margin-top:18px;max-width:320px}
.foot-col h3{font-size:.875rem;color:#fff;margin-bottom:16px}
.foot-col ul{display:flex;flex-direction:column;gap:10px}
.foot-col a{color:var(--text-2);font-size:.85rem}
.foot-col a:hover{color:var(--cyan)}
.foot-legal p{color:var(--text-3);font-size:.8125rem;font-family:var(--mono);margin-bottom:8px}
.foot-bottom{
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:12px;
  margin-top:48px;padding-top:24px;border-top:1px solid var(--line);
  color:var(--text-3);font-size:.8125rem;
}
.foot-bottom span{font-family:var(--mono)}

/* ===== 响应式 ===== */
@media (min-width:1440px){
  :root{--side-w:260px}
  .wrap{max-width:1280px}
}
@media (max-width:1199px){
  .tool-grid{grid-template-columns:repeat(2,1fr)}
  .wrap{padding:0 32px}
}
@media (max-width:991px){
  .sidebar{display:none}
  .mobile-bar{display:flex}
  .content{margin-left:0;width:100%}
  .wrap{padding:0 24px}
  .section{padding:64px 0}
  .section-tight{padding:48px 0}
  .glass,.compare-card,.tool-card,.cta-band{backdrop-filter:none;background:rgba(16,23,51,.92)}
  .hero-band::after{display:none}
  .compare{grid-template-columns:1fr}
  .foot-grid{grid-template-columns:1fr 1fr}
  .foot-brand{grid-column:1 / -1}
}
@media (max-width:767px){
  .wrap{padding:0 16px}
  .section{padding:56px 0}
  .hero-inner{padding:32px 0 36px}
  .check-list{grid-template-columns:1fr}
  .tool-grid{grid-template-columns:1fr}
  .post-row{grid-template-columns:1fr;gap:14px;padding:18px 0}
  .post-row img{width:100%;height:170px}
  .post-meta{flex-direction:row;align-items:center;justify-content:space-between;width:100%}
  .cta-band{padding:36px 22px}
  .card-pad{padding:20px}
}
@media (max-width:575px){
  .hero-title{font-size:1.75rem}
  .hero-actions .btn,.cta-actions .btn{width:100%}
  .hero-metrics .metric{width:100%}
  .foot-grid{grid-template-columns:1fr}
  .brand-badge{width:36px;height:36px}
  .cc-item,.cc-head{padding-left:16px;padding-right:16px}
  .accordion-button{padding:16px}
  .accordion-body{padding:0 16px 18px}
}
@media (prefers-reduced-motion:reduce){
  *{transition:none!important;animation:none!important}
}

/* roulang page: category4 */
:root{
  --space-900:#05070F;
  --space-800:#0A0F22;
  --space-700:#101733;
  --glass:rgba(20,28,58,.55);
  --glass-solid:#141C3A;
  --line:rgba(140,170,255,.16);
  --line-strong:rgba(140,170,255,.32);
  --indigo:#4C6BFF;
  --nebula:#8B5CF6;
  --gold:#FFC46B;
  --cyan:#35E0D0;
  --text:#EAEEFF;
  --text-2:#A8B3D6;
  --text-3:#6C7899;
  --ok:#34D399;
  --warn:#FFB020;
  --danger:#FF6B6B;
  --r-card:16px;
  --r-btn:12px;
  --r-pill:999px;
  --r-input:10px;
  --r-img:14px;
  --sh-1:0 1px 2px rgba(0,0,0,.4),0 8px 24px -12px rgba(76,107,255,.25);
  --sh-glow:0 0 0 1px rgba(76,107,255,.35),0 0 24px -4px rgba(76,107,255,.55);
  --sp-2:8px;--sp-3:12px;--sp-4:16px;--sp-5:24px;--sp-6:32px;--sp-7:48px;--sp-8:64px;--sp-9:96px;
  --mono:"SFMono-Regular",Consolas,"Liberation Mono",Menlo,monospace;
  --sans:"PingFang SC","HarmonyOS Sans","Source Han Sans SC","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  --ease:200ms ease-out;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:var(--sans);
  font-size:1rem;
  line-height:1.7;
  color:var(--text);
  background:
    radial-gradient(1100px 520px at 78% -12%,rgba(76,107,255,.14),transparent 62%),
    radial-gradient(760px 420px at 12% 4%,rgba(139,92,246,.12),transparent 60%),
    var(--space-800);
  min-height:100vh;
  overflow-x:hidden;
}
.stars{
  position:fixed;inset:0;pointer-events:none;z-index:0;opacity:.05;
  background-image:radial-gradient(1.2px 1.2px at 20% 30%,#fff,transparent),
    radial-gradient(1px 1px at 70% 18%,#fff,transparent),
    radial-gradient(1.4px 1.4px at 42% 74%,#fff,transparent),
    radial-gradient(1px 1px at 86% 62%,#fff,transparent),
    radial-gradient(1px 1px at 12% 86%,#fff,transparent);
  background-size:520px 520px,420px 420px,600px 600px,380px 380px,700px 700px;
}
img{max-width:100%;height:auto;display:block}
a{color:var(--indigo);text-decoration:none;transition:color var(--ease)}
a:hover{color:var(--cyan)}
h1,h2,h3,h4{margin:0;font-weight:800;letter-spacing:-.01em;line-height:1.25}
p{margin:0}
ul{margin:0;padding:0;list-style:none}
button{font-family:inherit}
:focus-visible{outline:2px solid var(--cyan);outline-offset:2px;border-radius:6px}
::selection{background:rgba(76,107,255,.4);color:#fff}

/* ============ 布局外壳 ============ */
.shell{position:relative;z-index:1;display:flex;min-height:100vh}
.main-wrap{flex:1;min-width:0;margin-left:240px;display:flex;flex-direction:column}
.wrap{width:100%;max-width:1200px;margin:0 auto;padding:0 40px}

/* ============ 侧栏导航 ============ */
.side-nav{
  position:fixed;top:0;left:0;bottom:0;width:240px;z-index:40;
  display:flex;flex-direction:column;
  padding:var(--sp-5) var(--sp-4) var(--sp-5);
  background:linear-gradient(180deg,rgba(10,15,34,.94),rgba(16,23,51,.9));
  border-right:1px solid var(--line);
  backdrop-filter:blur(14px) saturate(120%);
}
.brand{display:flex;gap:var(--sp-3);align-items:center;padding:0 6px var(--sp-5)}
.brand-badge{
  width:40px;height:40px;flex:0 0 40px;border-radius:13px;
  display:grid;place-items:center;font-size:1.05rem;font-weight:800;color:#fff;
  background:linear-gradient(140deg,var(--indigo),var(--nebula));
  box-shadow:var(--sh-glow);
}
.brand-text{display:flex;flex-direction:column;line-height:1.25;min-width:0}
.brand-text strong{font-size:1.02rem;font-weight:800;color:var(--text);letter-spacing:0}
.brand-text em{font-style:normal;font-size:.8125rem;color:var(--cyan);font-weight:600}
.nav-label{font-size:.6875rem;letter-spacing:.16em;color:var(--text-3);padding:0 12px 10px;text-transform:uppercase}
.nav-list{display:flex;flex-direction:column;gap:4px}
.nav-item{
  position:relative;display:flex;align-items:center;gap:12px;
  height:44px;padding:0 12px;border-radius:var(--r-btn);
  color:var(--text-2);font-size:.9375rem;font-weight:600;
  transition:background var(--ease),color var(--ease),transform var(--ease);
}
.nav-item i{width:18px;font-size:.95rem;text-align:center;color:var(--text-3);transition:color var(--ease)}
.nav-item:hover{background:rgba(76,107,255,.1);color:var(--text);transform:translateX(2px)}
.nav-item:hover i{color:var(--indigo)}
.nav-item.is-active{
  color:#fff;background:rgba(76,107,255,.16);
  box-shadow:inset 0 1px 0 rgba(255,255,255,.06);
}
.nav-item.is-active i{color:var(--cyan)}
.nav-item.is-active::before{
  content:"";position:absolute;left:0;top:11px;bottom:11px;width:3px;border-radius:2px;
  background:linear-gradient(180deg,var(--cyan),var(--indigo));
  box-shadow:0 0 14px rgba(53,224,208,.75);
}
.side-foot{margin-top:auto;padding-top:var(--sp-5);display:flex;flex-direction:column;gap:var(--sp-3)}
.btn-login-sm{
  display:flex;align-items:center;justify-content:center;gap:8px;
  height:42px;border-radius:var(--r-btn);font-size:.9375rem;font-weight:700;color:#fff;
  background:linear-gradient(135deg,var(--indigo),var(--nebula));
  box-shadow:var(--sh-glow);border:0;transition:transform var(--ease),filter var(--ease);
}
.btn-login-sm:hover{color:#fff;filter:brightness(1.1);transform:translateY(-1px)}
.btn-login-sm:active{transform:translateY(1px)}
.side-status{display:flex;align-items:center;gap:8px;font-size:.8125rem;color:var(--text-2);padding:0 6px}
.dot{width:8px;height:8px;border-radius:50%;background:var(--cyan);box-shadow:0 0 10px var(--cyan);animation:pulse 2.4s infinite}
@keyframes pulse{0%,100%{opacity:1}50%{opacity:.45}}
.mono{font-family:var(--mono);letter-spacing:.02em}
.side-ver{font-size:.6875rem;color:var(--text-3);padding:0 6px}

/* ============ 移动端顶栏 ============ */
.topbar{
  display:none;position:sticky;top:0;z-index:50;
  align-items:center;justify-content:space-between;gap:var(--sp-3);
  padding:12px 16px;background:rgba(10,15,34,.86);
  border-bottom:1px solid var(--line);backdrop-filter:blur(14px);
}
.topbar .brand{padding:0;gap:10px}
.topbar .brand-badge{width:34px;height:34px;flex:0 0 34px;border-radius:11px;font-size:.95rem}
.topbar .brand-text strong{font-size:.9375rem}
.topbar .brand-text em{font-size:.75rem}
.burger{
  width:42px;height:42px;border-radius:var(--r-btn);border:1px solid var(--line);
  background:var(--glass);color:var(--text);font-size:1.05rem;
  display:grid;place-items:center;transition:border-color var(--ease),background var(--ease);
}
.burger:hover{border-color:var(--line-strong);background:rgba(76,107,255,.14)}
.offcanvas{
  background:linear-gradient(180deg,#0A0F22,#101733);color:var(--text);
  border-right:1px solid var(--line);width:290px;
}
.offcanvas-header{border-bottom:1px solid var(--line);padding:16px 18px}
.offcanvas-body{padding:18px 14px}
.offcanvas .nav-item{height:46px;font-size:1rem}
.btn-close{filter:invert(1) grayscale(1) brightness(1.8)}
.offcanvas-backdrop.show{opacity:.55;background:#05070F}

/* ============ 通用组件 ============ */
.breadcrumb-bar{display:flex;align-items:center;gap:8px;font-size:.8125rem;color:var(--text-3);padding:26px 0 0}
.breadcrumb-bar a{color:var(--text-2)}
.breadcrumb-bar a:hover{color:var(--cyan)}
.breadcrumb-bar .sep{color:var(--text-3)}
.breadcrumb-bar .cur{color:var(--text);max-width:46vw;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
section{padding:var(--sp-9) 0}
.sec-head{display:flex;align-items:flex-end;justify-content:space-between;gap:var(--sp-5);margin-bottom:var(--sp-6)}
.sec-head h2{font-size:clamp(1.4rem,2.6vw,2rem)}
.sec-head p{color:var(--text-2);font-size:.9375rem;margin-top:8px}
.sec-more{color:var(--text-2);font-size:.875rem;white-space:nowrap;display:inline-flex;align-items:center;gap:6px}
.sec-more:hover{color:var(--cyan)}
.divider{height:1px;border:0;background:linear-gradient(90deg,transparent,rgba(76,107,255,.3),transparent);margin:0}
.glass{
  background:var(--glass);border:1px solid var(--line);border-radius:var(--r-card);
  backdrop-filter:blur(14px) saturate(120%);
  box-shadow:var(--sh-1);position:relative;overflow:hidden;
}
.glass::before{
  content:"";position:absolute;inset:0 0 auto;height:1px;
  background:linear-gradient(90deg,transparent,rgba(255,255,255,.22),transparent);
}
.tag{
  display:inline-flex;align-items:center;gap:6px;height:26px;padding:0 12px;
  border-radius:var(--r-pill);font-size:.75rem;font-weight:600;
  background:rgba(76,107,255,.14);border:1px solid var(--line);color:#B9C6FF;
}
.tag-cyan{background:rgba(53,224,208,.12);color:var(--cyan);border-color:rgba(53,224,208,.3)}
.tag-gold{background:rgba(255,196,107,.12);color:var(--gold);border-color:rgba(255,196,107,.3)}
.tag-purple{background:rgba(139,92,246,.14);color:#C4B1FF;border-color:rgba(139,92,246,.32)}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:9px;
  min-height:46px;padding:0 22px;border-radius:var(--r-btn);
  font-size:.9375rem;font-weight:700;border:1px solid transparent;
  transition:transform var(--ease),box-shadow var(--ease),background var(--ease),color var(--ease),border-color var(--ease);
}
.btn-primary-glow{
  color:#fff;background:linear-gradient(135deg,var(--indigo),var(--nebula));
  box-shadow:var(--sh-glow);
}
.btn-primary-glow:hover{color:#fff;filter:brightness(1.12);transform:translateY(-2px)}
.btn-primary-glow:active{transform:translateY(1px)}
.btn-glass{
  color:var(--text);background:var(--glass);border-color:var(--line);
}
.btn-glass:hover{color:#fff;border-color:rgba(76,107,255,.5);background:rgba(76,107,255,.16);transform:translateY(-2px)}
.btn-ghost{color:var(--text-2);background:transparent;border-color:var(--line)}
.btn-ghost:hover{color:#fff;border-color:var(--line-strong)}
.btn-pill{border-radius:var(--r-pill)}

/* ============ Hero ============ */
.cat-hero{
  position:relative;margin-top:20px;border-radius:20px;overflow:hidden;
  border:1px solid var(--line);
  min-height:232px;display:flex;align-items:center;
  background-image:linear-gradient(100deg,rgba(5,7,15,.94) 0%,rgba(10,15,34,.82) 46%,rgba(16,23,51,.55) 100%),url("/assets/images/backpic/back-2.png");
  background-size:cover;background-position:center;
}
.cat-hero-inner{padding:40px 40px;max-width:760px}
.crumb-chip{
  display:inline-flex;align-items:center;gap:8px;font-size:.75rem;color:var(--cyan);
  border:1px solid rgba(53,224,208,.3);background:rgba(53,224,208,.08);
  height:28px;padding:0 12px;border-radius:var(--r-pill);margin-bottom:18px;
}
.cat-hero h1{font-size:clamp(1.9rem,4.2vw,3.1rem);margin-bottom:14px}
.cat-hero h1 span{
  background:linear-gradient(120deg,var(--cyan),var(--indigo) 60%,var(--nebula));
  -webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent;
}
.cat-hero p{color:var(--text-2);font-size:1rem;max-width:640px}
.hero-meta{display:flex;flex-wrap:wrap;gap:10px;margin-top:22px}

/* ============ 快捷索引 ============ */
.quick-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:var(--sp-4)}
.quick-card{
  padding:20px;border-radius:var(--r-card);
  transition:transform var(--ease),border-color var(--ease),box-shadow var(--ease);
}
.quick-card:hover{transform:translateY(-3px);border-color:rgba(76,107,255,.4);box-shadow:var(--sh-glow)}
.quick-card i{font-size:1.1rem;color:var(--cyan);margin-bottom:12px;display:block}
.quick-card h3{font-size:1.0625rem;margin-bottom:8px}
.quick-card p{font-size:.875rem;color:var(--text-2)}
.quick-card .idx{font-family:var(--mono);font-size:.75rem;color:var(--text-3);display:block;margin-bottom:10px}

/* ============ 排查序列 ============ */
.step-strip{display:grid;grid-template-columns:repeat(3,1fr);gap:var(--sp-4)}
.step-item{padding:22px;border-radius:var(--r-card);position:relative}
.step-item .num{
  font-family:var(--mono);font-size:.8125rem;color:var(--cyan);
  border:1px solid rgba(53,224,208,.3);border-radius:var(--r-pill);
  padding:3px 10px;display:inline-block;margin-bottom:14px;
}
.step-item h3{font-size:1.0625rem;margin-bottom:8px}
.step-item p{font-size:.875rem;color:var(--text-2)}
.step-item::after{
  content:"";position:absolute;left:0;bottom:0;height:2px;width:100%;
  background:linear-gradient(90deg,var(--indigo),transparent);opacity:.5;
}

/* ============ FAQ 双列 + 粘性卡 ============ */
.faq-layout{display:grid;grid-template-columns:minmax(0,1fr) 340px;gap:var(--sp-6);align-items:start}
.faq-cols{display:grid;grid-template-columns:1fr 1fr;gap:var(--sp-5)}
.accordion-item{
  background:var(--glass);border:1px solid var(--line)!important;border-radius:var(--r-card)!important;
  margin-bottom:14px;overflow:hidden;backdrop-filter:blur(14px) saturate(120%);
}
.accordion-button{
  background:transparent;color:var(--text);font-size:.9375rem;font-weight:700;
  padding:18px 52px 18px 18px;line-height:1.5;box-shadow:none!important;
  transition:color var(--ease),background var(--ease);
}
.accordion-button:not(.collapsed){color:#fff;background:rgba(76,107,255,.12);border-bottom:1px solid var(--line)}
.accordion-button:hover{background:rgba(76,107,255,.08)}
.accordion-button::after{
  content:"+";font-size:1.15rem;font-weight:700;color:var(--cyan);
  background-image:none;display:grid;place-items:center;
  width:26px;height:26px;right:18px;position:absolute;
  border:1px solid rgba(53,224,208,.35);border-radius:50%;
  transition:transform 240ms ease-out,content 240ms ease-out;
}
.accordion-button:not(.collapsed)::after{content:"−";transform:rotate(180deg);color:var(--indigo);border-color:rgba(76,107,255,.5)}
.accordion-button:focus-visible{outline:2px solid var(--cyan);outline-offset:-2px}
.accordion-body{padding:16px 18px 20px;color:var(--text-2);font-size:.9063rem;line-height:1.8}
.accordion-body b{color:var(--text)}
.accordion-item:has(.accordion-button:not(.collapsed)){border-color:rgba(76,107,255,.4)!important;box-shadow:var(--sh-glow)}

.side-sticky{position:sticky;top:96px;display:flex;flex-direction:column;gap:var(--sp-4)}
.side-card{padding:22px;border-radius:var(--r-card)}
.side-card h3{font-size:1.0625rem;margin-bottom:6px}
.side-card .sub{font-size:.8125rem;color:var(--text-3);margin-bottom:16px}
.side-list li+li{margin-top:2px}
.side-list a{
  display:flex;align-items:center;justify-content:space-between;gap:10px;
  padding:11px 12px;border-radius:10px;color:var(--text-2);font-size:.9063rem;font-weight:600;
  transition:background var(--ease),color var(--ease),transform var(--ease);
}
.side-list a:hover{background:rgba(76,107,255,.14);color:#fff;transform:translateX(2px)}
.side-list a i{color:var(--text-3);font-size:.8rem}
.side-list a:hover i{color:var(--cyan)}
.side-cta{display:flex;flex-direction:column;gap:10px;margin-top:6px}
.side-cta .btn{width:100%}
.side-meta{
  margin-top:16px;padding-top:14px;border-top:1px dashed var(--line);
  display:flex;justify-content:space-between;font-size:.75rem;color:var(--text-3);font-family:var(--mono);
}
.side-figure{border-radius:var(--r-img);overflow:hidden;border:1px solid var(--line)}
.side-figure img{width:100%;aspect-ratio:16/10;object-fit:cover}

/* ============ 相关文章：紧凑卡组 ============ */
.mini-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:var(--sp-4)}
.mini-card{
  display:flex;gap:14px;padding:16px;border-radius:var(--r-card);
  transition:transform var(--ease),border-color var(--ease),box-shadow var(--ease);
}
.mini-card:hover{transform:translateY(-3px);border-color:rgba(76,107,255,.4);box-shadow:var(--sh-1)}
.mini-thumb{width:96px;flex:0 0 96px;border-radius:10px;overflow:hidden;border:1px solid var(--line)}
.mini-thumb img{width:100%;height:100%;object-fit:cover;aspect-ratio:4/3}
.mini-body{min-width:0;display:flex;flex-direction:column;gap:8px}
.mini-body h3{font-size:.9688rem;line-height:1.45}
.mini-body h3 a{color:var(--text)}
.mini-body h3 a:hover{color:var(--cyan)}
.mini-body p{font-size:.8438rem;color:var(--text-2);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.mini-time{font-family:var(--mono);font-size:.75rem;color:var(--text-3);margin-top:auto;display:flex;align-items:center;gap:8px}

/* ============ CTA 通栏 ============ */
.cta-band{padding:40px;border-radius:20px;position:relative;overflow:hidden}
.cta-band::after{
  content:"";position:absolute;right:-120px;top:-120px;width:360px;height:360px;border-radius:50%;
  background:radial-gradient(circle,rgba(76,107,255,.28),transparent 68%);
}
.cta-inner{display:flex;align-items:center;justify-content:space-between;gap:var(--sp-6);position:relative;z-index:1}
.cta-inner h2{font-size:clamp(1.4rem,2.6vw,2rem);margin-bottom:10px}
.cta-inner p{color:var(--text-2);font-size:.9375rem;max-width:560px}
.cta-actions{display:flex;gap:12px;flex-wrap:wrap}
.cta-note{margin-top:24px;font-size:.75rem;color:var(--text-3);font-family:var(--mono);position:relative;z-index:1}

/* ============ 页脚 ============ */
.site-footer{
  margin-top:var(--sp-8);border-top:1px solid var(--line);
  background:linear-gradient(180deg,rgba(10,15,34,.6),rgba(5,7,15,.9));
}
.foot-line{height:1px;background:linear-gradient(90deg,transparent,rgba(76,107,255,.45),transparent)}
.foot-grid{
  display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr 1fr;gap:var(--sp-6);
  padding:var(--sp-8) 0 var(--sp-7);
}
.foot-brand .brand{padding:0 0 14px}
.foot-brand p{font-size:.875rem;color:var(--text-2);max-width:340px}
.foot-col h3{font-size:.9063rem;margin-bottom:16px;color:var(--text)}
.foot-col ul li+li{margin-top:10px}
.foot-col a{color:var(--text-2);font-size:.875rem}
.foot-col a:hover{color:var(--cyan)}
.foot-legal p{font-size:.8125rem;color:var(--text-3);font-family:var(--mono);line-height:1.9}
.foot-bottom{
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  padding:20px 0 34px;border-top:1px solid var(--line);
  font-size:.8125rem;color:var(--text-3);
}
.foot-bottom span{font-family:var(--mono)}

/* ============ 响应式 ============ */
@media (max-width:1439.98px){
  .wrap{max-width:1200px}
}
@media (min-width:1440px){
  .side-nav{width:260px}
  .main-wrap{margin-left:260px}
  .wrap{max-width:1280px}
}
@media (max-width:1199.98px){
  .faq-layout{grid-template-columns:1fr}
  .side-sticky{position:static}
  .quick-grid{grid-template-columns:repeat(2,1fr)}
}
@media (max-width:991.98px){
  .side-nav{display:none}
  .topbar{display:flex}
  .main-wrap{margin-left:0}
  section{padding:var(--sp-8) 0}
  .wrap{padding:0 24px}
  .faq-cols{grid-template-columns:1fr}
  .mini-grid{grid-template-columns:1fr}
  .cta-inner{flex-direction:column;align-items:flex-start}
  .foot-grid{grid-template-columns:1fr 1fr;gap:var(--sp-5)}
  .foot-brand{grid-column:1 / -1}
}
@media (max-width:767.98px){
  .step-strip{grid-template-columns:1fr}
  .cat-hero-inner{padding:30px 24px}
  .cat-hero{min-height:210px}
  .glass,.quick-card,.mini-card,.side-card,.accordion-item,.step-item{
    background:var(--glass-solid);backdrop-filter:none;
  }
  .stars{display:none}
}
@media (max-width:575.98px){
  section{padding:56px 0}
  .wrap{padding:0 16px}
  .quick-grid{grid-template-columns:1fr}
  .sec-head{flex-direction:column;align-items:flex-start;gap:10px}
  .btn{width:100%}
  .cta-actions{width:100%}
  .cta-actions .btn{width:100%}
  .foot-grid{grid-template-columns:1fr;padding-bottom:var(--sp-6)}
  .foot-bottom{flex-direction:column;align-items:flex-start;gap:8px}
  .mini-card{flex-direction:column}
  .mini-thumb{width:100%;flex:0 0 auto}
}
@media (prefers-reduced-motion:reduce){
  *{animation:none!important;transition:none!important}
}