/* roulang page: index */
:root{
  --bg:#070C16;
  --bg-soft:#0B1220;
  --panel:#101A2B;
  --glass:rgba(18,30,52,.62);
  --line:rgba(125,211,252,.18);
  --line-strong:rgba(125,211,252,.34);
  --text:#E8F1FF;
  --muted:#A9B8D0;
  --dim:#6F809B;
  --cyan:#22D3EE;
  --violet:#7C5CFF;
  --amber:#FFB020;
  --link:#7DD3FC;
  --link-visited:#A78BFA;
  --ok:#34D399;
  --warn:#F59E0B;
  --err:#F87171;
  --r-card:18px;
  --r-btn:12px;
  --r-img:14px;
  --shadow:0 10px 40px rgba(0,0,0,.45), inset 0 1px 0 rgba(255,255,255,.06);
  --glow:0 0 0 1px rgba(34,211,238,.35), 0 0 28px rgba(34,211,238,.28);
  --font:"Noto Sans SC","PingFang SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  --side:232px;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font:400 16px/1.75 var(--font);
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
  overflow-x:hidden;
}
body::before{
  content:"";
  position:fixed;
  inset:0;
  z-index:-2;
  background:
    radial-gradient(circle at 12% 8%, rgba(34,211,238,.10), transparent 42%),
    radial-gradient(circle at 88% 4%, rgba(124,92,255,.12), transparent 46%),
    radial-gradient(circle at 60% 96%, rgba(34,211,238,.06), transparent 50%),
    var(--bg);
}
body::after{
  content:"";
  position:fixed;
  inset:0;
  z-index:-1;
  pointer-events:none;
  background-image:
    radial-gradient(rgba(125,211,252,.16) 1px, transparent 1px),
    linear-gradient(115deg, rgba(125,211,252,.05) 0 1px, transparent 1px 180px);
  background-size:64px 64px, 100% 100%;
  opacity:.5;
}
img{max-width:100%;display:block}
a{color:var(--link);text-decoration:none;transition:color .18s ease}
a:hover{color:#B7E9FF;text-decoration:underline;text-underline-offset:3px}
a:visited{color:var(--link-visited)}
h1,h2,h3,h4{margin:0;line-height:1.3;font-weight:800;letter-spacing:.2px}
p{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
button{font:inherit;color:inherit;border:0;background:none;cursor:pointer}
input{font:inherit}
:focus-visible{outline:2px solid var(--cyan);outline-offset:2px;border-radius:6px}
::selection{background:rgba(34,211,238,.28)}

/* ---------- layout ---------- */
.app{position:relative;min-height:100vh}
.shell{margin-left:var(--side);min-height:100vh;display:flex;flex-direction:column}
.wrap{width:100%;max-width:1280px;margin:0 auto;padding:0 32px}
.section{padding:88px 0 0}
.section:last-of-type{padding-bottom:0}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:28px;flex-wrap:wrap}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12px;letter-spacing:2px;color:var(--cyan);
  text-transform:uppercase;margin-bottom:10px;font-weight:600;
}
.eyebrow::before{content:"";width:22px;height:1px;background:linear-gradient(90deg,var(--cyan),transparent)}
h1{font-size:clamp(2rem,4.2vw,3.5rem);font-weight:800;line-height:1.16}
h2{font-size:clamp(1.5rem,2.6vw,2.25rem)}
h3{font-size:1.25rem}
.sec-sub{color:var(--muted);margin-top:12px;max-width:660px;font-size:16px}

/* ---------- sidebar / nav ---------- */
.sidebar{
  position:fixed;top:0;left:0;bottom:0;width:var(--side);
  display:flex;flex-direction:column;gap:20px;
  padding:22px 16px 20px;
  background:linear-gradient(180deg,rgba(11,18,32,.96),rgba(7,12,22,.99));
  border-right:1px solid var(--line);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  z-index:70;overflow-y:auto;
}
.brand{display:flex;align-items:center;gap:10px;text-decoration:none;color:var(--text)}
.brand:hover{text-decoration:none}
.brand-mark{
  width:34px;height:34px;flex:0 0 34px;border-radius:10px;
  display:grid;grid-template-columns:repeat(3,1fr);grid-template-rows:repeat(3,1fr);
  gap:3px;padding:6px;
  background:linear-gradient(140deg,rgba(34,211,238,.22),rgba(124,92,255,.28));
  border:1px solid var(--line-strong);
}
.brand-mark i{display:block;border-radius:50%;background:rgba(232,241,255,.35)}
.brand-mark i:nth-child(2),.brand-mark i:nth-child(5),.brand-mark i:nth-child(8){background:var(--cyan);box-shadow:0 0 8px rgba(34,211,238,.8)}
.brand-text{display:flex;flex-direction:column;min-width:0}
.brand-name{font-weight:800;font-size:15px;letter-spacing:.4px;line-height:1.25}
.brand-sub{font-size:11px;color:var(--dim);letter-spacing:.6px}
.search{margin-top:2px}
.search input{
  width:100%;min-height:44px;padding:10px 12px 10px 34px;
  border-radius:12px;border:1px solid var(--line);
  background:rgba(16,26,43,.85) url("data:image/svg+xml;charset=utf8,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 24 24' fill='none' stroke='%236F809B' stroke-width='2'%3E%3Ccircle cx='11' cy='11' r='7'/%3E%3Cpath d='M20 20l-3.6-3.6'/%3E%3C/svg%3E") no-repeat 12px center;
  color:var(--text);font-size:14px;
}
.search input::placeholder{color:var(--dim)}
.search input:focus{border-color:var(--line-strong);box-shadow:var(--glow);outline:none}
.nav{display:flex;flex-direction:column;gap:6px}
.nav-title{font-size:11px;letter-spacing:2px;color:var(--dim);padding:0 10px;margin-bottom:4px}
.nav-item{
  position:relative;display:flex;align-items:center;gap:10px;
  min-height:44px;padding:9px 12px 9px 14px;border-radius:12px;
  color:var(--muted);font-size:14.5px;font-weight:500;
}
.nav-item:hover{background:rgba(34,211,238,.07);color:var(--text);text-decoration:none}
.nav-item.is-active{color:var(--text);font-weight:700;background:rgba(34,211,238,.09)}
.nav-item.is-active::before{
  content:"";position:absolute;left:0;top:9px;bottom:9px;width:3px;border-radius:3px;
  background:linear-gradient(180deg,var(--cyan),var(--violet));
  box-shadow:0 0 12px rgba(34,211,238,.6);
}
.nav-ico{
  width:20px;height:20px;flex:0 0 20px;display:grid;
  grid-template-columns:repeat(2,1fr);grid-template-rows:repeat(2,1fr);gap:3px;
}
.nav-ico i{display:block;border-radius:2px;background:rgba(169,184,208,.55)}
.nav-item.is-active .nav-ico i{background:var(--cyan);box-shadow:0 0 6px rgba(34,211,238,.6)}
.side-foot{margin-top:auto;display:flex;flex-direction:column;gap:12px}
.side-note{font-size:12px;color:var(--dim);line-height:1.7;padding:0 4px}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:46px;padding:12px 22px;border-radius:999px;
  font-weight:700;font-size:15px;letter-spacing:.3px;
  transition:transform .18s ease, box-shadow .18s ease, background .18s ease, border-color .18s ease;
  cursor:pointer;text-decoration:none;white-space:nowrap;
}
.btn:hover{text-decoration:none;transform:translateY(-2px)}
.btn:active{transform:translateY(0)}
.btn:disabled,.btn[aria-disabled="true"]{opacity:.45;cursor:not-allowed;transform:none}
.btn-primary{
  background:linear-gradient(120deg,var(--amber),#FFD166 45%,var(--cyan));
  color:#0A1322;box-shadow:0 8px 26px rgba(255,176,32,.26);
}
.btn-primary:hover{box-shadow:0 10px 32px rgba(34,211,238,.34)}
.btn-ghost{
  background:var(--glass);border:1px solid var(--line-strong);color:var(--text);
  backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
}
.btn-ghost:hover{border-color:rgba(34,211,238,.6);box-shadow:var(--glow)}
.btn-block{width:100%}
.btn-sm{min-height:40px;padding:9px 16px;font-size:14px}
.btn-link{
  display:inline-flex;align-items:center;gap:6px;color:var(--cyan);
  font-weight:600;font-size:14.5px;min-height:44px;padding:0 2px;
}
.btn-link::after{content:"→";transition:transform .18s ease}
.btn-link:hover{text-decoration:none;color:#9BE9FF}
.btn-link:hover::after{transform:translateX(4px)}

/* ---------- topbar (mobile) ---------- */
.topbar{
  display:none;position:sticky;top:0;z-index:80;
  align-items:center;gap:12px;padding:10px 16px;
  background:rgba(7,12,22,.92);border-bottom:1px solid var(--line);
  backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
}
.menu-toggle{
  width:44px;height:44px;border-radius:12px;border:1px solid var(--line);
  background:rgba(16,26,43,.8);display:grid;place-content:center;gap:4px;flex:0 0 44px;
}
.menu-toggle span{display:block;width:18px;height:2px;border-radius:2px;background:var(--text)}
.topbar .brand{flex:1;min-width:0}
.topbar .brand-sub{display:none}
.topbar-cta{min-height:40px;padding:8px 14px;font-size:14px}
.scrim{
  position:fixed;inset:0;background:rgba(4,8,16,.7);z-index:65;
  opacity:0;visibility:hidden;transition:opacity .25s ease,visibility .25s ease;
}
.scrim.show{opacity:1;visibility:visible}

/* ---------- hero ---------- */
.hero{
  position:relative;margin-top:28px;border-radius:24px;overflow:hidden;
  border:1px solid var(--line);
  background:url("/assets/images/backpic/back-1.png") center/cover no-repeat;
  box-shadow:var(--shadow);
}
.hero::before{
  content:"";position:absolute;inset:0;
  background:linear-gradient(100deg,rgba(7,12,22,.96) 0%,rgba(7,12,22,.86) 42%,rgba(7,12,22,.58) 100%);
}
.hero-grid{
  position:relative;z-index:2;display:grid;grid-template-columns:7fr 5fr;
  gap:40px;padding:60px 48px 44px;align-items:center;
}
.hero-badge{
  display:inline-flex;align-items:center;gap:8px;padding:7px 14px;border-radius:999px;
  background:rgba(34,211,238,.1);border:1px solid rgba(34,211,238,.34);
  color:var(--cyan);font-size:13px;font-weight:600;margin-bottom:20px;
}
.hero-badge b{color:var(--amber)}
.hero h1{margin-bottom:18px}
.hero h1 em{font-style:normal;background:linear-gradient(96deg,var(--cyan),var(--violet));-webkit-background-clip:text;background-clip:text;color:transparent}
.hero-lede{color:var(--muted);font-size:17px;max-width:560px;line-height:1.85}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:28px}
.hero-panel{
  border-radius:var(--r-card);padding:16px;border:1px solid var(--line);
  background:var(--glass);backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
  box-shadow:var(--shadow);position:relative;
}
.hero-panel img{width:100%;aspect-ratio:16/10;object-fit:cover;border-radius:var(--r-img)}
.hero-panel-meta{display:flex;justify-content:space-between;align-items:center;gap:10px;padding:14px 4px 2px}
.hero-panel-meta strong{font-size:15px;font-weight:700}
.hero-panel-meta span{font-size:12px;color:var(--dim)}
.chip{
  position:absolute;display:flex;flex-direction:column;gap:2px;
  padding:10px 14px;border-radius:14px;border:1px solid var(--line-strong);
  background:rgba(9,16,28,.9);backdrop-filter:blur(10px);box-shadow:var(--shadow);
}
.chip b{font-size:19px;font-variant-numeric:tabular-nums;color:var(--amber);line-height:1.2}
.chip span{font-size:11px;color:var(--dim);letter-spacing:.5px}
.chip-a{left:-18px;bottom:64px}
.chip-b{right:-14px;top:36px}
.trust-bar{
  position:relative;z-index:2;display:flex;flex-wrap:wrap;gap:14px 36px;
  padding:18px 48px;border-top:1px solid var(--line);
  background:rgba(7,12,22,.55);
}
.trust-item{display:flex;align-items:center;gap:9px;font-size:14px;color:var(--muted)}
.trust-item b{color:var(--text);font-variant-numeric:tabular-nums;font-weight:700}
.dot{width:7px;height:7px;border-radius:50%;background:var(--cyan);box-shadow:0 0 10px rgba(34,211,238,.9);flex:0 0 7px}

/* ---------- channels ---------- */
.channels{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.channel-card{
  position:relative;display:block;border-radius:var(--r-card);overflow:hidden;
  border:1px solid var(--line);min-height:212px;background:var(--panel);
  transition:transform .2s ease,border-color .2s ease,box-shadow .2s ease;text-decoration:none;
}
.channel-card img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;opacity:.42;transition:transform .4s ease,opacity .3s ease}
.channel-card::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(7,12,22,.35),rgba(7,12,22,.94))}
.channel-body{position:relative;z-index:2;padding:22px 20px;display:flex;flex-direction:column;gap:10px;height:100%;justify-content:flex-end}
.channel-card:hover{transform:translateY(-4px);border-color:rgba(34,211,238,.55);box-shadow:var(--glow);text-decoration:none}
.channel-card:hover img{transform:scale(1.06);opacity:.55}
.channel-tag{font-size:11px;letter-spacing:1.6px;color:var(--cyan);font-weight:700}
.channel-body h3{font-size:17px;color:var(--text)}
.channel-body p{font-size:13.5px;color:var(--muted);line-height:1.7}

/* ---------- guarantee strip ---------- */
.guarantee{
  display:grid;grid-template-columns:repeat(4,1fr);gap:0;
  border-radius:var(--r-card);border:1px solid var(--line);
  background:rgba(16,26,43,.55);overflow:hidden;
}
.guarantee-item{
  display:flex;align-items:center;gap:12px;padding:20px 22px;
  border-right:1px solid rgba(125,211,252,.12);
}
.guarantee-item:last-child{border-right:0}
.g-ico{
  width:38px;height:38px;flex:0 0 38px;border-radius:12px;display:grid;place-content:center;
  background:linear-gradient(140deg,rgba(34,211,238,.16),rgba(124,92,255,.2));
  border:1px solid var(--line);color:var(--cyan);font-weight:800;font-size:14px;
  font-variant-numeric:tabular-nums;
}
.guarantee-item strong{display:block;font-size:15px}
.guarantee-item span{font-size:12.5px;color:var(--dim)}

/* ---------- bento grid ---------- */
.bento{display:grid;grid-template-columns:repeat(12,1fr);gap:20px}
.card{
  position:relative;display:flex;flex-direction:column;overflow:hidden;
  border-radius:var(--r-card);border:1px solid var(--line);
  background:linear-gradient(180deg,rgba(18,30,52,.72),rgba(11,18,32,.92));
  box-shadow:var(--shadow);
  transition:transform .2s ease,border-color .2s ease,box-shadow .2s ease;
}
.card:hover{transform:translateY(-4px);border-color:rgba(34,211,238,.5);box-shadow:var(--glow)}
.card-media{position:relative;overflow:hidden}
.card-media img{width:100%;aspect-ratio:16/10;object-fit:cover;transition:transform .4s ease}
.card:hover .card-media img{transform:scale(1.05)}
.card-body{padding:18px 20px 22px;display:flex;flex-direction:column;gap:10px;flex:1}
.card-body h3{font-size:18px}
.card-body p{font-size:14px;color:var(--muted);line-height:1.75}
.card-foot{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-top:auto;padding-top:6px;font-size:12.5px;color:var(--dim)}
.badge{
  position:absolute;top:14px;left:14px;z-index:2;
  padding:5px 11px;border-radius:999px;font-size:11.5px;font-weight:700;letter-spacing:.6px;
  background:rgba(9,16,28,.86);border:1px solid var(--line-strong);color:var(--cyan);
  backdrop-filter:blur(8px);
}
.badge-amber{color:#2A1B00;background:var(--amber);border-color:transparent}
.badge-violet{color:#EDE7FF;border-color:rgba(124,92,255,.6);background:rgba(124,92,255,.24)}
.b-a{grid-column:span 6;grid-row:span 2}
.b-a .card-media img{aspect-ratio:4/3}
.b-a .card-body h3{font-size:23px}
.b-a .card-body p{font-size:15px}
.b-b,.b-c,.b-d,.b-e{grid-column:span 3}
.b-f,.b-g{grid-column:span 6}
.b-f .card-media img,.b-g .card-media img{aspect-ratio:21/9}
.stat-inline{display:flex;gap:22px;flex-wrap:wrap;padding:14px 20px;border-top:1px solid rgba(125,211,252,.14)}
.stat-inline div{display:flex;flex-direction:column}
.stat-inline b{font-size:20px;color:var(--amber);font-variant-numeric:tabular-nums;line-height:1.2}
.stat-inline span{font-size:12px;color:var(--dim)}

/* ---------- reviews ---------- */
.review-wrap{position:relative}
.review-rail{
  display:flex;gap:20px;overflow-x:auto;padding:4px 4px 20px;
  scroll-snap-type:x mandatory;scroll-behavior:smooth;
  scrollbar-width:thin;scrollbar-color:rgba(34,211,238,.4) transparent;
}
.review-rail::-webkit-scrollbar{height:6px}
.review-rail::-webkit-scrollbar-thumb{background:rgba(34,211,238,.35);border-radius:99px}
.review-card{
  scroll-snap-align:start;flex:0 0 calc((100% - 40px)/3);
  border-radius:var(--r-card);border:1px solid var(--line);
  background:var(--glass);backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
  padding:22px;display:flex;flex-direction:column;gap:14px;box-shadow:var(--shadow);
}
.review-head{display:flex;align-items:center;gap:12px}
.avatar{
  width:42px;height:42px;flex:0 0 42px;border-radius:50%;display:grid;place-content:center;
  font-weight:800;font-size:15px;color:#0A1322;
  background:linear-gradient(140deg,var(--cyan),var(--violet));
}
.review-head strong{display:block;font-size:15px}
.review-head span{font-size:12px;color:var(--dim)}
.stars{color:var(--amber);letter-spacing:2px;font-size:14px}
.review-card p{color:var(--muted);font-size:14.5px;line-height:1.8;display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden}
.review-nav{display:flex;gap:10px}
.icon-btn{
  width:44px;height:44px;border-radius:50%;border:1px solid var(--line-strong);
  background:var(--glass);display:grid;place-content:center;color:var(--text);
  transition:border-color .18s ease,box-shadow .18s ease,transform .18s ease;
}
.icon-btn:hover{border-color:rgba(34,211,238,.65);box-shadow:var(--glow);transform:translateY(-2px)}

/* ---------- news ---------- */
.news-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.news-card{
  border-radius:var(--r-card);border:1px solid var(--line);
  background:linear-gradient(180deg,rgba(18,30,52,.6),rgba(11,18,32,.9));
  transition:transform .2s ease,border-color .2s ease,box-shadow .2s ease;
}
.news-card:hover{transform:translateY(-4px);border-color:rgba(34,211,238,.5);box-shadow:var(--glow)}
.news-link{display:flex;flex-direction:column;gap:12px;padding:22px;height:100%;color:var(--text)}
.news-link:hover{text-decoration:none}
.news-cat{
  align-self:flex-start;font-size:11.5px;font-weight:700;letter-spacing:.8px;color:var(--cyan);
  padding:4px 10px;border-radius:999px;background:rgba(34,211,238,.1);border:1px solid rgba(34,211,238,.3);
}
.news-link h3{font-size:17px;line-height:1.5}
.news-link p{
  font-size:14px;color:var(--muted);line-height:1.75;
  display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden;
}
.news-meta{font-size:12.5px;color:var(--dim);margin-top:auto;padding-top:8px;border-top:1px solid rgba(125,211,252,.12);font-variant-numeric:tabular-nums}
.empty{
  grid-column:1/-1;padding:44px 22px;text-align:center;color:var(--muted);
  border:1px dashed var(--line-strong);border-radius:var(--r-card);background:rgba(16,26,43,.4);font-size:15px;
}

/* ---------- faq ---------- */
.faq{max-width:900px;margin:0 auto;display:flex;flex-direction:column;gap:14px}
.faq-item{
  position:relative;border-radius:var(--r-card);border:1px solid var(--line);
  background:var(--glass);backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
  overflow:hidden;transition:border-color .2s ease;
}
.faq-item[open]{border-color:rgba(34,211,238,.45)}
.faq-item summary{
  list-style:none;cursor:pointer;padding:20px 56px 20px 24px;font-size:16.5px;font-weight:700;
  min-height:44px;position:relative;
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::before{
  content:"";position:absolute;left:0;top:16px;bottom:16px;width:3px;border-radius:3px;
  background:linear-gradient(180deg,var(--cyan),var(--violet));opacity:0;transition:opacity .2s ease;
}
.faq-item[open] summary::before{opacity:1}
.faq-item summary::after{
  content:"+";position:absolute;right:22px;top:50%;transform:translateY(-50%);
  font-size:20px;color:var(--cyan);font-weight:400;line-height:1;
}
.faq-item[open] summary::after{content:"–"}
.faq-body{padding:0 24px 22px;color:var(--muted);font-size:15px;line-height:1.85}

/* ---------- cta ---------- */
.cta-band{
  position:relative;overflow:hidden;border-radius:24px;border:1px solid var(--line);
  background:linear-gradient(120deg,rgba(12,22,40,.96),rgba(24,20,52,.9));
  padding:48px;display:flex;align-items:center;justify-content:space-between;gap:32px;flex-wrap:wrap;
  box-shadow:var(--shadow);
}
.cta-band::after{
  content:"";position:absolute;right:-80px;top:-80px;width:320px;height:320px;border-radius:50%;
  background:radial-gradient(circle,rgba(34,211,238,.22),transparent 68%);
}
.cta-band h2{margin-bottom:12px}
.cta-band p{color:var(--muted);max-width:600px}
.cta-actions{display:flex;gap:14px;flex-wrap:wrap;position:relative;z-index:2}

/* ---------- footer ---------- */
.footer{margin-top:88px;border-top:1px solid var(--line);background:rgba(9,15,27,.86)}
.footer-grid{display:grid;grid-template-columns:2.2fr 1fr 1fr 1.4fr;gap:32px;padding:56px 0 32px}
.footer h4{font-size:14px;letter-spacing:1.2px;color:var(--text);margin-bottom:16px}
.footer p,.footer li{color:var(--muted);font-size:14px;line-height:1.9}
.footer ul{display:flex;flex-direction:column;gap:4px}
.footer a{color:var(--muted)}
.footer a:hover{color:var(--link)}
.footer-brand .brand{margin-bottom:16px}
.footer-bottom{
  border-top:1px solid rgba(125,211,252,.12);padding:20px 0 28px;
  display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13px;color:var(--dim);
}

/* ---------- floating / dock ---------- */
.float-cta{
  position:fixed;right:28px;bottom:28px;z-index:60;
  display:inline-flex;align-items:center;gap:8px;
  padding:14px 22px;border-radius:999px;
  background:linear-gradient(120deg,var(--amber),#FFD166 50%,var(--cyan));
  color:#0A1322;font-weight:800;font-size:14.5px;
  box-shadow:0 12px 34px rgba(34,211,238,.3);
  transition:transform .18s ease,box-shadow .18s ease;
}
.float-cta:hover{transform:translateY(-3px);text-decoration:none;color:#0A1322;box-shadow:0 14px 40px rgba(255,176,32,.36)}
.dock{
  display:none;position:fixed;left:0;right:0;bottom:0;z-index:75;gap:10px;
  padding:10px 14px calc(10px + env(safe-area-inset-bottom));
  background:rgba(7,12,22,.94);border-top:1px solid var(--line);
  backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
}
.dock .btn{flex:1;min-height:48px;font-size:15px}

/* ---------- responsive ---------- */
@media (max-width:1279px){
  :root{--side:208px}
  .wrap{padding:0 24px}
  .hero-grid{padding:48px 36px 36px;gap:32px}
  .trust-bar{padding:16px 36px}
  .channels{grid-template-columns:repeat(2,1fr)}
  .b-a{grid-column:span 12;grid-row:auto}
  .b-b,.b-c,.b-d,.b-e{grid-column:span 6}
  .b-f,.b-g{grid-column:span 6}
  .review-card{flex:0 0 calc((100% - 20px)/2)}
  .footer-grid{grid-template-columns:1.8fr 1fr 1fr;gap:28px}
}
@media (max-width:1023px){
  .sidebar{transform:translateX(-100%);transition:transform .3s ease;width:282px;box-shadow:12px 0 40px rgba(0,0,0,.5)}
  .sidebar.is-open{transform:translateX(0)}
  .shell{margin-left:0}
  .topbar{display:flex}
  .section{padding-top:64px}
  .hero{margin-top:20px}
  .hero-grid{grid-template-columns:1fr;padding:40px 28px 32px}
  .chip-a{left:auto;right:16px;bottom:-14px}
  .chip-b{top:auto;bottom:auto;right:16px;top:-14px}
  .trust-bar{padding:16px 28px;gap:12px 24px}
  .guarantee{grid-template-columns:repeat(2,1fr)}
  .guarantee-item:nth-child(2n){border-right:0}
  .guarantee-item:nth-child(-n+2){border-bottom:1px solid rgba(125,211,252,.12)}
  .news-grid{grid-template-columns:repeat(2,1fr)}
  .cta-band{padding:36px 28px}
  .float-cta{display:none}
}
@media (max-width:767px){
  body{padding-bottom:78px}
  .wrap{padding:0 16px}
  .section{padding-top:48px}
  .hero-grid{padding:32px 20px 26px}
  .hero-lede{font-size:15.5px}
  .hero-actions .btn{flex:1 1 100%}
  .trust-bar{padding:14px 20px;gap:10px 18px}
  .trust-item{font-size:13px}
  .channels{grid-template-columns:1fr}
  .channel-card{min-height:180px}
  .bento{grid-template-columns:1fr}
  .b-a,.b-b,.b-c,.b-d,.b-e,.b-f,.b-g{grid-column:span 1;grid-row:auto}
  .b-a .card-media img,.b-f .card-media img,.b-g .card-media img{aspect-ratio:16/10}
  .b-a .card-body h3{font-size:19px}
  .news-grid{grid-template-columns:1fr}
  .review-card{flex:0 0 82%}
  .footer-grid{grid-template-columns:1fr 1fr;gap:26px;padding:40px 0 24px}
  .footer-brand{grid-column:1/-1}
  .cta-band{padding:30px 20px;border-radius:20px}
  .cta-actions .btn{flex:1 1 100%}
  .dock{display:flex}
  .section-head{margin-bottom:20px}
}
@media (max-width:480px){
  h1{font-size:1.85rem}
  .guarantee{grid-template-columns:1fr}
  .guarantee-item{border-right:0;border-bottom:1px solid rgba(125,211,252,.12)}
  .guarantee-item:last-child{border-bottom:0}
  .review-card{flex:0 0 88%}
  .footer-grid{grid-template-columns:1fr}
  .chip{position:static;margin-top:12px}
  .hero-panel-meta{flex-direction:column;align-items:flex-start;gap:4px}
}
@media (prefers-reduced-motion:reduce){
  *{animation:none!important;transition:none!important;scroll-behavior:auto!important}
}

/* roulang page: article */
:root{
  --bg:#070C16;
  --bg-2:#0B1322;
  --panel:#101A2B;
  --glass:rgba(18,30,52,.62);
  --glass-line:rgba(125,211,252,.18);
  --line:rgba(125,211,252,.12);
  --text:#E8F1FF;
  --text-2:#A9B8D0;
  --text-3:#6F809B;
  --cyan:#22D3EE;
  --violet:#7C5CFF;
  --amber:#FFB020;
  --link:#7DD3FC;
  --link-visited:#A78BFA;
  --ok:#34D399;
  --warn:#F59E0B;
  --err:#F87171;
  --r-card:18px;
  --r-btn:999px;
  --r-img:14px;
  --shadow:0 10px 40px rgba(0,0,0,.45), inset 0 1px rgba(255,255,255,.06);
  --glow:0 0 0 1px rgba(34,211,238,.35), 0 0 28px rgba(34,211,238,.28);
  --sidebar-w:232px;
  --maxw:1280px;
  --ease:cubic-bezier(.22,.61,.36,1);
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  min-height:100vh;
  background:var(--bg);
  color:var(--text);
  font-family:"Noto Sans SC","PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:16px;
  line-height:1.75;
  font-weight:400;
  overflow-x:hidden;
}
body::before{
  content:"";
  position:fixed;
  inset:0;
  z-index:0;
  pointer-events:none;
  background-image:
    radial-gradient(1.6px 1.6px at 11% 16%, rgba(125,211,252,.42), transparent 62%),
    radial-gradient(1.4px 1.4px at 74% 11%, rgba(124,92,255,.38), transparent 62%),
    radial-gradient(1.4px 1.4px at 42% 68%, rgba(34,211,238,.32), transparent 62%),
    radial-gradient(1.2px 1.2px at 88% 54%, rgba(255,176,32,.26), transparent 62%),
    radial-gradient(1.2px 1.2px at 24% 86%, rgba(125,211,252,.28), transparent 62%),
    linear-gradient(118deg, rgba(34,211,238,.05) 0%, transparent 42%),
    linear-gradient(298deg, rgba(124,92,255,.05) 0%, transparent 46%);
  background-size:cover;
}
img{max-width:100%;display:block;height:auto}
a{color:var(--link);text-decoration:none;transition:color .2s var(--ease)}
a:hover{color:#B6E8FF;text-decoration:underline;text-underline-offset:3px}
a:visited{color:var(--link-visited)}
button{font:inherit;cursor:pointer;border:0;background:none;color:inherit}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4{margin:0;font-weight:700;line-height:1.35;letter-spacing:.2px}
p{margin:0}
:focus-visible{outline:2px solid var(--cyan);outline-offset:2px;border-radius:6px}
.num{font-variant-numeric:tabular-nums}
.skip{position:absolute;left:-9999px;top:0;padding:10px 16px;background:var(--panel);border-radius:0 0 12px 0;z-index:200}
.skip:focus{left:0}
.wrap{width:100%;max-width:var(--maxw);margin:0 auto;padding:0 28px}

/* ============ 品牌 ============ */
.brand{display:flex;align-items:center;gap:12px;text-decoration:none}
.brand:hover{text-decoration:none}
.brand-mark{display:grid;grid-template-columns:repeat(3,4px);grid-template-rows:repeat(3,4px);gap:3px;flex:0 0 auto}
.brand-mark i{display:block;width:4px;height:4px;border-radius:50%;background:rgba(125,211,252,.42)}
.brand-mark i:nth-child(5){background:var(--cyan);box-shadow:0 0 10px rgba(34,211,238,.85)}
.brand-mark i:nth-child(3){background:rgba(124,92,255,.75)}
.brand-mark i:nth-child(7){background:rgba(255,176,32,.7)}
.brand-text{display:flex;flex-direction:column;line-height:1.2}
.brand-name{font-size:16px;font-weight:800;color:var(--text);letter-spacing:.6px}
.brand-sub{font-size:11.5px;color:var(--text-3);letter-spacing:1.6px}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:44px;padding:11px 22px;border-radius:var(--r-btn);
  font-size:15px;font-weight:600;letter-spacing:.3px;
  transition:transform .2s var(--ease),box-shadow .25s var(--ease),background .25s var(--ease),border-color .25s var(--ease);
  white-space:nowrap;
}
.btn:hover{text-decoration:none;transform:translateY(-2px)}
.btn:active{transform:translateY(0)}
.btn-primary{
  background:linear-gradient(100deg,#FFB020 0%,#FFC55C 42%,#22D3EE 100%);
  color:#08111F;
  box-shadow:0 8px 24px rgba(255,176,32,.24);
}
.btn-primary:hover{box-shadow:0 12px 32px rgba(255,176,32,.34),0 0 22px rgba(34,211,238,.28);color:#050B14}
.btn-ghost{
  background:var(--glass);
  border:1px solid var(--glass-line);
  color:var(--text);
  backdrop-filter:blur(14px);
}
.btn-ghost:hover{border-color:rgba(34,211,238,.5);box-shadow:var(--glow)}
.btn-text{min-height:44px;padding:0;color:var(--cyan);font-weight:600;display:inline-flex;align-items:center;gap:6px}
.btn-text::after{content:"→";transition:transform .2s var(--ease)}
.btn-text:hover{text-decoration:none}
.btn-text:hover::after{transform:translateX(4px)}
.btn[disabled],.btn:disabled{opacity:.45;pointer-events:none}

/* ============ 侧栏 ============ */
.sidebar{
  position:fixed;top:0;left:0;bottom:0;width:var(--sidebar-w);z-index:70;
  display:flex;flex-direction:column;gap:22px;padding:22px 18px 20px;
  background:linear-gradient(180deg,rgba(16,26,43,.95) 0%,rgba(8,14,25,.97) 100%);
  border-right:1px solid var(--glass-line);
  backdrop-filter:blur(14px);
  transition:transform .32s var(--ease);
}
.sidebar::after{
  content:"";position:absolute;top:0;right:-1px;bottom:0;width:1px;
  background:linear-gradient(180deg,transparent,rgba(34,211,238,.45),rgba(124,92,255,.35),transparent);
}
.nav-title{font-size:11.5px;letter-spacing:2px;color:var(--text-3);padding:0 12px;margin-bottom:-8px}
.nav-list{display:flex;flex-direction:column;gap:5px}
.nav-item{
  position:relative;display:flex;align-items:center;gap:11px;
  padding:11px 12px 11px 15px;border-radius:12px;
  color:var(--text-2);font-size:14.5px;font-weight:500;
  transition:background .22s var(--ease),color .22s var(--ease);
}
.nav-item:hover{color:var(--text);background:rgba(34,211,238,.07);text-decoration:none}
.nav-item.is-active{color:#fff;background:rgba(34,211,238,.1)}
.nav-item.is-active::before{
  content:"";position:absolute;left:0;top:9px;bottom:9px;width:3px;border-radius:3px;
  background:linear-gradient(180deg,var(--cyan),var(--violet));
  box-shadow:0 0 12px rgba(34,211,238,.65);
}
.nav-ico{
  width:15px;height:15px;border-radius:4px;flex:0 0 auto;
  border:1px solid rgba(125,211,252,.42);
  background:linear-gradient(135deg,rgba(34,211,238,.22),rgba(124,92,255,.16));
}
.nav-item.is-active .nav-ico{border-color:rgba(34,211,238,.85);box-shadow:0 0 10px rgba(34,211,238,.5)}
.sidebar-cta{
  margin-top:auto;
  padding:16px 15px;border-radius:16px;
  background:var(--glass);border:1px solid var(--glass-line);
  backdrop-filter:blur(14px);
}
.sidebar-cta p{font-size:12.8px;color:var(--text-2);line-height:1.65;margin-bottom:12px}
.sidebar-cta .btn{width:100%;font-size:14px;padding:10px 14px}
.backdrop{
  position:fixed;inset:0;z-index:65;background:rgba(4,8,15,.66);
  backdrop-filter:blur(3px);opacity:0;visibility:hidden;transition:.28s var(--ease);
}
.backdrop.show{opacity:1;visibility:visible}

/* ============ 顶部栏 ============ */
.topbar{
  display:none;position:sticky;top:0;z-index:60;
  align-items:center;gap:12px;padding:10px 16px;
  background:rgba(9,15,27,.92);
  border-bottom:1px solid var(--glass-line);
  backdrop-filter:blur(14px);
}
.menu-toggle{
  width:44px;height:44px;flex:0 0 auto;border-radius:12px;
  display:flex;flex-direction:column;justify-content:center;align-items:center;gap:4px;
  background:var(--glass);border:1px solid var(--glass-line);
}
.menu-toggle span{display:block;width:17px;height:2px;border-radius:2px;background:var(--text-2);transition:.2s var(--ease)}
.menu-toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(6px) rotate(45deg)}
.menu-toggle[aria-expanded="true"] span:nth-child(2){opacity:0}
.menu-toggle[aria-expanded="true"] span:nth-child(3){transform:translateY(-6px) rotate(-45deg)}
.topbar .brand{margin-right:auto}
.topbar .brand-sub{display:none}
.topbar-cta{font-size:13.5px;padding:9px 16px;min-height:40px}

/* ============ 主体区 ============ */
.main-area{position:relative;z-index:1;margin-left:var(--sidebar-w);display:flex;flex-direction:column;min-height:100vh}
.board{flex:1 1 auto}

/* ============ 文章头部 ============ */
.article-hero{
  position:relative;
  padding:46px 0 40px;
  border-bottom:1px solid var(--glass-line);
  background-image:
    linear-gradient(180deg,rgba(7,12,22,.62) 0%,rgba(7,12,22,.88) 55%,rgba(7,12,22,.97) 100%),
    url('/assets/images/backpic/back-1.png');
  background-size:cover;
  background-position:center;
}
.article-hero::before{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:linear-gradient(96deg,rgba(34,211,238,.14) 0%,transparent 38%),
    linear-gradient(276deg,rgba(124,92,255,.13) 0%,transparent 40%);
}
.article-hero .wrap{position:relative;z-index:2}
.crumbs{display:flex;flex-wrap:wrap;align-items:center;gap:9px;font-size:13.5px;color:var(--text-3);margin-bottom:20px}
.crumbs a{color:var(--text-2)}
.crumbs span.sep{color:var(--text-3);opacity:.6}
.crumbs .current{color:var(--text-2);max-width:420px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.badge-row{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:16px}
.badge{
  display:inline-flex;align-items:center;gap:6px;
  padding:5px 13px;border-radius:var(--r-btn);
  font-size:12.5px;font-weight:600;letter-spacing:.4px;
  border:1px solid var(--glass-line);background:var(--glass);color:var(--text-2);
  backdrop-filter:blur(10px);
}
.badge-cyan{border-color:rgba(34,211,238,.45);color:#9DEBFA;box-shadow:0 0 16px rgba(34,211,238,.16)}
.badge-amber{border-color:rgba(255,176,32,.45);color:#FFD08A;box-shadow:0 0 16px rgba(255,176,32,.14)}
.article-hero h1{
  font-size:clamp(1.75rem,3.5vw,2.7rem);
  font-weight:800;line-height:1.28;color:#fff;
  max-width:960px;letter-spacing:.3px;
}
.article-hero .lede{
  margin-top:16px;max-width:760px;
  font-size:16.5px;line-height:1.85;color:var(--text-2);
}
.meta-row{
  display:flex;flex-wrap:wrap;align-items:center;gap:10px 22px;
  margin-top:22px;font-size:13.5px;color:var(--text-3);
}
.meta-row .meta-item{display:inline-flex;align-items:center;gap:7px}
.meta-row .dot{width:6px;height:6px;border-radius:50%;background:var(--cyan);box-shadow:0 0 8px rgba(34,211,238,.8)}
.meta-row .dot.violet{background:var(--violet);box-shadow:0 0 8px rgba(124,92,255,.8)}
.meta-row .dot.amber{background:var(--amber);box-shadow:0 0 8px rgba(255,176,32,.8)}

/* ============ 布局 ============ */
.article-layout{
  display:grid;
  grid-template-columns:minmax(0,1fr) 306px;
  gap:40px;
  padding-top:52px;
  padding-bottom:80px;
  align-items:start;
}

/* ============ 正文 ============ */
.article-main{min-width:0}
.reader{
  max-width:820px;
  padding:34px 36px 40px;
  border-radius:var(--r-card);
  background:linear-gradient(180deg,rgba(16,26,43,.92),rgba(11,19,33,.94));
  border:1px solid var(--line);
  box-shadow:var(--shadow);
}
.reader-head{
  display:flex;align-items:center;gap:12px;
  padding-bottom:18px;margin-bottom:26px;
  border-bottom:1px solid var(--line);
}
.reader-head .bar{width:4px;height:20px;border-radius:3px;background:linear-gradient(180deg,var(--cyan),var(--violet))}
.reader-head h2{font-size:15.5px;font-weight:700;color:var(--text-2);letter-spacing:1.4px}
.article-body{font-size:17px;line-height:1.9;color:#CBD8EC}
.article-body p{margin:0 0 1.2em}
.article-body h2{
  position:relative;
  margin:2.3em 0 .85em;padding-left:15px;
  font-size:clamp(1.24rem,2vw,1.5rem);font-weight:700;color:#fff;line-height:1.5;
}
.article-body h2::before{
  content:"";position:absolute;left:0;top:.26em;bottom:.26em;width:4px;border-radius:3px;
  background:linear-gradient(180deg,var(--cyan),var(--violet));
  box-shadow:0 0 12px rgba(34,211,238,.45);
}
.article-body h3{margin:1.7em 0 .6em;font-size:1.16rem;font-weight:700;color:#fff;line-height:1.55}
.article-body h2:first-child,.article-body h3:first-child{margin-top:0}
.article-body ul,.article-body ol{margin:0 0 1.25em;padding-left:4px}
.article-body li{position:relative;padding-left:20px;margin-bottom:.6em;line-height:1.85}
.article-body ul li::before{
  content:"";position:absolute;left:2px;top:.72em;width:6px;height:6px;border-radius:50%;
  background:linear-gradient(135deg,var(--cyan),var(--violet));
  box-shadow:0 0 8px rgba(34,211,238,.55);
}
.article-body ol{counter-reset:ast}
.article-body ol li{counter-increment:ast}
.article-body ol li::before{
  content:counter(ast);position:absolute;left:0;top:.42em;
  width:20px;height:20px;border-radius:7px;font-size:11.5px;line-height:20px;text-align:center;
  color:#9DEBFA;background:rgba(34,211,238,.12);border:1px solid rgba(34,211,238,.32);
  font-variant-numeric:tabular-nums;
}
.article-body blockquote{
  margin:1.5em 0;padding:18px 22px;
  border-left:3px solid rgba(34,211,238,.7);
  border-radius:0 14px 14px 0;
  background:var(--glass);
  backdrop-filter:blur(12px);
  color:var(--text-2);font-size:16px;line-height:1.85;
}
.article-body blockquote p:last-child{margin-bottom:0}
.article-body img{border-radius:var(--r-img);margin:1.4em auto;box-shadow:var(--shadow)}
.article-body figure{margin:1.5em 0}
.article-body figcaption{text-align:center;font-size:13.5px;color:var(--text-3);margin-top:10px}
.article-body a{text-decoration:underline;text-underline-offset:3px}
.article-body table{
  display:block;width:100%;max-width:100%;overflow-x:auto;
  margin:1.5em 0;border-collapse:collapse;font-size:15px;
  border-radius:12px;border:1px solid var(--line);
}
.article-body th,.article-body td{padding:11px 14px;border-bottom:1px solid var(--line);text-align:left;white-space:nowrap}
.article-body th{background:rgba(34,211,238,.08);color:#fff;font-weight:600}
.article-body code{
  padding:2px 7px;border-radius:7px;font-size:.92em;
  background:rgba(125,211,252,.12);border:1px solid rgba(125,211,252,.2);color:#BFE9FF;
}
.article-body hr{border:0;height:1px;margin:2.2em 0;background:linear-gradient(90deg,transparent,rgba(125,211,252,.32),transparent)}
.article-body strong{color:#fff}
.empty-state{
  padding:52px 24px;text-align:center;border-radius:14px;
  background:rgba(11,19,33,.6);border:1px dashed rgba(125,211,252,.28);
}
.empty-state .ico{
  width:52px;height:52px;margin:0 auto 16px;border-radius:16px;
  display:flex;align-items:center;justify-content:center;
  background:rgba(34,211,238,.1);border:1px solid rgba(34,211,238,.3);
  font-size:22px;color:var(--cyan);
}
.empty-state h3{font-size:18px;color:#fff;margin-bottom:10px}
.empty-state p{color:var(--text-2);font-size:15px;margin-bottom:20px}

/* ============ 侧栏卡片 ============ */
.article-aside{display:flex;flex-direction:column;gap:20px;position:sticky;top:28px}
.panel{
  border-radius:var(--r-card);
  background:var(--glass);
  border:1px solid var(--glass-line);
  backdrop-filter:blur(14px);
  box-shadow:var(--shadow);
  padding:22px 20px;
}
.panel h3{font-size:15px;color:#fff;display:flex;align-items:center;gap:9px;margin-bottom:16px}
.panel h3::before{content:"";width:3px;height:15px;border-radius:3px;background:linear-gradient(180deg,var(--cyan),var(--violet))}
.channel-list{display:flex;flex-direction:column;gap:6px}
.channel-list a{
  display:flex;align-items:center;gap:10px;
  padding:10px 11px;border-radius:11px;
  font-size:14px;color:var(--text-2);
  transition:background .2s var(--ease),color .2s var(--ease),padding-left .2s var(--ease);
}
.channel-list a:hover{background:rgba(34,211,238,.08);color:#fff;text-decoration:none;padding-left:15px}
.channel-list .square{
  width:9px;height:9px;border-radius:3px;flex:0 0 auto;
  background:linear-gradient(135deg,var(--cyan),var(--violet));opacity:.8;
}
.panel-note{font-size:13.5px;line-height:1.8;color:var(--text-2)}
.panel-note + .panel-note{margin-top:10px}
.panel-stat{
  display:flex;align-items:baseline;gap:8px;margin-bottom:8px;
}
.panel-stat .n{font-size:26px;font-weight:800;color:var(--amber);font-variant-numeric:tabular-nums}
.panel-stat .u{font-size:13px;color:var(--text-3)}

/* ============ 相关推荐 ============ */
.related{padding:76px 0 0}
.sec-head{display:flex;flex-wrap:wrap;align-items:flex-end;justify-content:space-between;gap:16px;margin-bottom:30px}
.sec-head h2{font-size:clamp(1.4rem,2.4vw,2rem);color:#fff}
.sec-head p{margin-top:9px;font-size:15px;color:var(--text-2);max-width:640px}
.card-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:22px}
.rec-card{
  display:flex;flex-direction:column;overflow:hidden;
  border-radius:var(--r-card);
  background:linear-gradient(180deg,rgba(16,26,43,.94),rgba(10,17,30,.96));
  border:1px solid var(--line);
  box-shadow:var(--shadow);
  transition:transform .26s var(--ease),border-color .26s var(--ease),box-shadow .26s var(--ease);
}
.rec-card:hover{transform:translateY(-4px);border-color:rgba(34,211,238,.45);box-shadow:0 16px 44px rgba(0,0,0,.5),0 0 26px rgba(34,211,238,.18)}
.rec-media{position:relative;aspect-ratio:16/9;overflow:hidden;background:rgba(7,12,22,.8)}
.rec-media img{width:100%;height:100%;object-fit:cover;transition:transform .5s var(--ease)}
.rec-card:hover .rec-media img{transform:scale(1.05)}
.rec-media .tag{
  position:absolute;top:12px;left:12px;
  padding:4px 11px;border-radius:var(--r-btn);
  font-size:12px;font-weight:600;color:#08111F;
  background:linear-gradient(100deg,#FFB020,#FFD07A);
}
.rec-body{padding:18px 20px 20px;display:flex;flex-direction:column;gap:10px;flex:1 1 auto}
.rec-body h3{font-size:16.5px;line-height:1.5;color:#fff}
.rec-body p{font-size:14px;line-height:1.75;color:var(--text-2)}
.rec-body .btn-text{margin-top:auto;font-size:14px}

/* ============ FAQ ============ */
.faq{padding:80px 0 0}
.faq-list{max-width:900px;display:flex;flex-direction:column;gap:12px}
.faq-item{
  border-radius:16px;overflow:hidden;
  background:var(--glass);border:1px solid var(--glass-line);
  backdrop-filter:blur(14px);
  transition:border-color .25s var(--ease);
}
.faq-item[open]{border-color:rgba(34,211,238,.42)}
.faq-item summary{
  position:relative;list-style:none;cursor:pointer;
  padding:18px 54px 18px 22px;
  font-size:15.5px;font-weight:600;color:var(--text);
  display:flex;align-items:center;min-height:44px;
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::before{
  content:"";position:absolute;left:0;top:12px;bottom:12px;width:3px;border-radius:3px;
  background:linear-gradient(180deg,var(--cyan),var(--violet));
  opacity:0;transition:opacity .25s var(--ease);
}
.faq-item[open] summary::before{opacity:1}
.faq-item summary::after{
  content:"+";position:absolute;right:20px;top:50%;transform:translateY(-50%);
  font-size:20px;font-weight:400;color:var(--cyan);line-height:1;
}
.faq-item[open] summary::after{content:"−"}
.faq-answer{padding:0 24px 20px 24px;font-size:15px;line-height:1.8;color:var(--text-2)}

/* ============ CTA 带 ============ */
.cta-band{padding:80px 0 0}
.cta-inner{
  position:relative;overflow:hidden;
  display:grid;grid-template-columns:minmax(0,1fr) auto;gap:32px;align-items:center;
  padding:42px 44px;border-radius:24px;
  background-image:linear-gradient(100deg,rgba(10,18,32,.94),rgba(16,26,43,.82)),url('/assets/images/backpic/back-2.png');
  background-size:cover;background-position:center;
  border:1px solid rgba(34,211,238,.28);
  box-shadow:0 20px 60px rgba(0,0,0,.5);
}
.cta-inner h2{font-size:clamp(1.35rem,2.2vw,1.85rem);color:#fff;margin-bottom:12px}
.cta-inner p{font-size:15.5px;line-height:1.8;color:var(--text-2);max-width:620px}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px}

/* ============ 返回入口 ============ */
.back-row{
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:16px;
  margin-top:34px;padding-top:26px;border-top:1px solid var(--line);
  font-size:14.5px;color:var(--text-3);
}

/* ============ 页脚 ============ */
.footer{margin-top:96px;border-top:1px solid var(--glass-line);background:linear-gradient(180deg,rgba(9,15,27,.6),rgba(6,10,18,.95))}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:34px;padding:56px 0 36px}
.footer-brand p{margin-top:16px;font-size:13.8px;line-height:1.85;color:var(--text-3);max-width:340px}
.footer h4{font-size:14px;color:#fff;margin-bottom:16px;letter-spacing:.6px}
.footer ul{display:flex;flex-direction:column;gap:10px}
.footer ul a{font-size:13.8px;color:var(--text-2)}
.footer ul a:hover{color:var(--cyan)}
.footer p{font-size:13.8px;line-height:1.9;color:var(--text-3)}
.footer p + p{margin-top:8px}
.footer-bottom{
  display:flex;flex-wrap:wrap;justify-content:space-between;gap:12px;
  padding:20px 0 26px;border-top:1px solid var(--line);
  font-size:13px;color:var(--text-3);
}

/* ============ 移动吸底 ============ */
.mobile-cta{
  display:none;position:fixed;left:0;right:0;bottom:0;z-index:55;
  gap:10px;padding:10px 14px calc(10px + env(safe-area-inset-bottom));
  background:rgba(8,14,25,.95);border-top:1px solid var(--glass-line);
  backdrop-filter:blur(14px);
}
.mobile-cta .btn{flex:1 1 0;font-size:14px;min-height:46px}

/* ============ 响应式 ============ */
@media (max-width:1279px){
  :root{--sidebar-w:208px}
  .article-layout{grid-template-columns:minmax(0,1fr) 268px;gap:30px}
}
@media (max-width:1023px){
  .sidebar{transform:translateX(-100%);width:270px;box-shadow:0 0 60px rgba(0,0,0,.6)}
  .sidebar.open{transform:translateX(0)}
  .topbar{display:flex}
  .main-area{margin-left:0}
  .article-hero{padding:32px 0 30px}
  .article-layout{grid-template-columns:minmax(0,1fr);gap:32px;padding-top:36px;padding-bottom:56px}
  .article-aside{position:static;flex-direction:row;flex-wrap:wrap}
  .article-aside .panel{flex:1 1 280px}
  .reader{max-width:none;padding:26px 24px 30px}
  .card-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px;padding:44px 0 28px}
  .cta-inner{grid-template-columns:minmax(0,1fr);padding:32px 28px}
  .footer{margin-top:72px}
}
@media (max-width:767px){
  .wrap{padding:0 18px}
  .brand-name{font-size:15px}
  .article-hero h1{font-size:clamp(1.5rem,6vw,2rem)}
  .article-hero .lede{font-size:15.5px}
  .crumbs{font-size:12.8px}
  .crumbs .current{max-width:180px}
  .reader{padding:22px 18px 26px;border-radius:16px}
  .article-body{font-size:16.5px;line-height:1.86}
  .card-grid{grid-template-columns:minmax(0,1fr)}
  .related,.faq,.cta-band{padding-top:56px}
  .footer-grid{grid-template-columns:1fr;gap:24px}
  .mobile-cta{display:flex}
  .footer-bottom{padding-bottom:88px}
  .cta-inner{padding:26px 20px;border-radius:20px}
}
@media (max-width:479px){
  .wrap{padding:0 16px}
  .badge{font-size:11.8px;padding:4px 11px}
  .meta-row{gap:8px 16px;font-size:12.8px}
  .cta-actions .btn{width:100%}
}
@media (prefers-reduced-motion:reduce){
  *{animation:none!important;transition:none!important}
  html{scroll-behavior:auto}
}

/* roulang page: category1 */
:root{
  --bg:#070C16;
  --bg-soft:#0B1322;
  --panel:#101A2B;
  --glass:rgba(18,30,52,.62);
  --line:rgba(125,211,252,.18);
  --line-strong:rgba(125,211,252,.34);
  --text:#E8F1FF;
  --muted:#A9B8D0;
  --dim:#6F809B;
  --cyan:#22D3EE;
  --violet:#7C5CFF;
  --amber:#FFB020;
  --link:#7DD3FC;
  --link-visited:#A78BFA;
  --ok:#34D399;
  --warn:#F59E0B;
  --err:#F87171;
  --r-card:18px;
  --r-img:14px;
  --r-btn:999px;
  --shadow:0 10px 40px rgba(0,0,0,.45), inset 0 1px rgba(255,255,255,.06);
  --glow:0 0 0 1px rgba(34,211,238,.35), 0 0 28px rgba(34,211,238,.28);
  --sidebar-w:232px;
  --dur:.24s;
  --font:"Noto Sans SC","PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:var(--font);
  font-size:16px;
  line-height:1.75;
  font-weight:400;
  letter-spacing:.01em;
  min-height:100vh;
  overflow-x:hidden;
}
body::before{
  content:"";
  position:fixed;
  inset:0;
  pointer-events:none;
  z-index:0;
  background-image:
    radial-gradient(1.4px 1.4px at 12% 18%, rgba(232,241,255,.55), transparent 60%),
    radial-gradient(1.2px 1.2px at 78% 12%, rgba(125,211,252,.5), transparent 60%),
    radial-gradient(1.4px 1.4px at 46% 62%, rgba(167,139,250,.4), transparent 60%),
    radial-gradient(1.1px 1.1px at 88% 72%, rgba(232,241,255,.4), transparent 60%),
    radial-gradient(1.1px 1.1px at 24% 84%, rgba(34,211,238,.4), transparent 60%),
    linear-gradient(115deg, rgba(34,211,238,.05) 0 1px, transparent 1px 220px),
    linear-gradient(65deg, rgba(124,92,255,.045) 0 1px, transparent 1px 260px);
  opacity:.85;
}
a{color:var(--link);text-decoration:none;transition:color var(--dur) ease}
a:hover{color:#A5E4FF;text-decoration:underline;text-underline-offset:3px}
a:visited{color:var(--link-visited)}
img{max-width:100%;display:block;border-radius:var(--r-img)}
button{font-family:inherit}
:focus-visible{outline:2px solid var(--cyan);outline-offset:2px;border-radius:6px}
h1,h2,h3,h4{margin:0;line-height:1.3;font-weight:800;letter-spacing:.005em}
p{margin:0}
ul{margin:0;padding:0;list-style:none}
.wrap{width:100%;max-width:1280px;margin:0 auto;padding:0 24px}
.tab-nums{font-variant-numeric:tabular-nums}

/* ============ 侧栏导航（桌面） ============ */
.sidebar{
  position:fixed;
  top:0;left:0;bottom:0;
  width:var(--sidebar-w);
  z-index:40;
  display:flex;
  flex-direction:column;
  gap:18px;
  padding:24px 18px 20px;
  background:linear-gradient(180deg, rgba(16,26,43,.96), rgba(9,15,27,.98));
  border-right:1px solid var(--line);
  box-shadow:0 0 40px rgba(0,0,0,.5);
  overflow-y:auto;
}
.brand{display:flex;align-items:center;gap:10px;text-decoration:none;color:var(--text)}
.brand:hover{text-decoration:none;color:var(--text)}
.brand-mark{width:34px;height:34px;flex:0 0 34px;display:grid;grid-template-columns:repeat(3,1fr);grid-template-rows:repeat(3,1fr);gap:3px;padding:4px;border-radius:10px;background:rgba(34,211,238,.08);border:1px solid rgba(34,211,238,.3);box-shadow:0 0 18px rgba(34,211,238,.18) inset}
.brand-mark i{display:block;border-radius:2px;background:rgba(125,211,252,.28)}
.brand-mark i:nth-child(1),
.brand-mark i:nth-child(5),
.brand-mark i:nth-child(9){background:linear-gradient(135deg,var(--cyan),var(--violet));box-shadow:0 0 8px rgba(34,211,238,.55)}
.brand-text{display:flex;flex-direction:column;line-height:1.2}
.brand-name{font-size:15px;font-weight:800;letter-spacing:.02em}
.brand-sub{font-size:11px;color:var(--dim);letter-spacing:.08em}
.side-label{font-size:11px;color:var(--dim);letter-spacing:.18em;padding:0 10px;font-weight:700}
.side-nav{display:flex;flex-direction:column;gap:6px}
.side-nav a{
  position:relative;
  display:flex;align-items:center;gap:10px;
  min-height:44px;
  padding:10px 12px;
  border-radius:12px;
  color:var(--muted);
  font-size:14.5px;
  font-weight:500;
  border:1px solid transparent;
  transition:all var(--dur) ease;
}
.side-nav a:hover{background:rgba(34,211,238,.07);color:var(--text);text-decoration:none;border-color:rgba(34,211,238,.18)}
.side-nav a::before{
  content:"";
  width:7px;height:7px;flex:0 0 7px;border-radius:2px;
  background:rgba(125,211,252,.35);
  transform:rotate(45deg);
  transition:all var(--dur) ease;
}
.side-nav a.is-active{
  color:#fff;
  background:linear-gradient(90deg, rgba(34,211,238,.16), rgba(124,92,255,.10));
  border-color:rgba(34,211,238,.32);
  box-shadow:0 0 22px rgba(34,211,238,.16);
}
.side-nav a.is-active::before{background:linear-gradient(135deg,var(--cyan),var(--violet));box-shadow:0 0 10px rgba(34,211,238,.7)}
.side-nav a.is-active::after{
  content:"";position:absolute;left:0;top:8px;bottom:8px;width:3px;border-radius:3px;
  background:linear-gradient(180deg,var(--cyan),var(--violet));
  box-shadow:0 0 12px rgba(34,211,238,.7);
}
.side-cta{margin-top:auto;display:flex;flex-direction:column;gap:10px}
.side-note{font-size:12px;color:var(--dim);line-height:1.7;padding:12px;border-radius:12px;background:rgba(16,26,43,.7);border:1px solid var(--line)}

/* ============ 顶栏（移动 / 平板） ============ */
.topbar{
  display:none;
  position:sticky;top:0;z-index:35;
  align-items:center;gap:12px;
  padding:10px 16px;
  background:rgba(10,17,30,.88);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  border-bottom:1px solid var(--line);
}
.menu-toggle{
  width:44px;height:44px;flex:0 0 44px;
  display:flex;flex-direction:column;align-items:center;justify-content:center;gap:5px;
  background:var(--glass);
  border:1px solid var(--line);
  border-radius:12px;
  cursor:pointer;
  transition:all var(--dur) ease;
}
.menu-toggle span{display:block;width:18px;height:2px;border-radius:2px;background:var(--text)}
.menu-toggle:hover{border-color:var(--line-strong);box-shadow:0 0 16px rgba(34,211,238,.2)}
.topbar .brand{flex:1 1 auto;min-width:0}
.topbar .brand-name{font-size:14.5px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.topbar-cta{display:none}
.overlay{
  position:fixed;inset:0;z-index:39;
  background:rgba(3,7,14,.66);
  backdrop-filter:blur(3px);
  opacity:0;visibility:hidden;
  transition:opacity var(--dur) ease, visibility var(--dur) ease;
}
body.drawer-open .overlay{opacity:1;visibility:visible}

/* ============ 主区 ============ */
.main{position:relative;z-index:1;margin-left:var(--sidebar-w)}
.section{padding:72px 0}
.section-tight{padding:56px 0}

/* 按钮 */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:44px;
  padding:12px 22px;
  border-radius:var(--r-btn);
  font-size:15px;font-weight:700;
  border:1px solid transparent;
  cursor:pointer;
  text-decoration:none;
  transition:transform var(--dur) ease, box-shadow var(--dur) ease, background var(--dur) ease, border-color var(--dur) ease;
  white-space:nowrap;
}
.btn:hover{text-decoration:none;transform:translateY(-2px)}
.btn:active{transform:translateY(0)}
.btn:disabled,.btn[aria-disabled="true"]{opacity:.45;cursor:not-allowed;transform:none}
.btn-primary{
  background:linear-gradient(100deg,#FFB020 0%, #FFC75C 42%, #22D3EE 100%);
  color:#08111F;
  box-shadow:0 8px 26px rgba(255,176,32,.24), 0 0 0 1px rgba(255,176,32,.35);
}
.btn-primary:hover{box-shadow:0 12px 32px rgba(255,176,32,.36), 0 0 0 1px rgba(34,211,238,.45), 0 0 28px rgba(34,211,238,.28)}
.btn-ghost{
  background:var(--glass);
  color:var(--text);
  border-color:var(--line-strong);
  backdrop-filter:blur(12px);
  -webkit-backdrop-filter:blur(12px);
}
.btn-ghost:hover{border-color:var(--cyan);box-shadow:0 0 22px rgba(34,211,238,.24)}
.btn-text{
  background:none;border:none;padding:8px 4px;min-height:44px;
  color:var(--link);font-weight:700;font-size:15px;
}
.btn-text:hover{color:#A5E4FF;text-decoration:underline;text-underline-offset:4px;transform:translateY(-2px)}
.btn-sm{padding:9px 16px;font-size:14px;min-height:40px}
.btn-block{width:100%}

/* ============ Hero（压缩） ============ */
.hero{position:relative;overflow:hidden;border-bottom:1px solid var(--line)}
.hero-bg{
  position:absolute;inset:0;
  background-image:url("/assets/images/backpic/back-1.png");
  background-size:cover;
  background-position:center right;
  opacity:.42;
}
.hero-bg::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(90deg, rgba(7,12,22,.96) 0%, rgba(7,12,22,.82) 46%, rgba(7,12,22,.42) 100%),
             linear-gradient(180deg, rgba(7,12,22,.35), rgba(7,12,22,.9));
}
.hero-inner{position:relative;z-index:2;padding:56px 0 44px;min-height:320px;display:flex;flex-direction:column;justify-content:center;gap:20px;max-width:820px}
.crumbs{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--dim)}
.crumbs a{color:var(--muted)}
.crumbs span.sep{color:var(--dim);opacity:.7}
.hero h1{
  font-size:clamp(1.85rem,3.4vw,2.85rem);
  font-weight:800;
  letter-spacing:.01em;
}
.hero h1 em{font-style:normal;background:linear-gradient(100deg,#22D3EE,#7C5CFF 60%,#FFB020);-webkit-background-clip:text;background-clip:text;color:transparent}
.hero-sub{font-size:17px;color:var(--muted);max-width:680px}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;align-items:center}
.hero-chips{display:flex;flex-wrap:wrap;gap:8px;margin-top:2px}

.tag{
  display:inline-flex;align-items:center;gap:6px;
  padding:5px 12px;
  border-radius:999px;
  font-size:12.5px;
  font-weight:600;
  color:#BFE9FF;
  background:rgba(34,211,238,.09);
  border:1px solid rgba(34,211,238,.24);
  white-space:nowrap;
}
.tag-violet{color:#D6CBFF;background:rgba(124,92,255,.12);border-color:rgba(124,92,255,.3)}
.tag-amber{color:#FFD79A;background:rgba(255,176,32,.12);border-color:rgba(255,176,32,.3)}
.tag-ok{color:#A9F3D6;background:rgba(52,211,153,.12);border-color:rgba(52,211,153,.28)}

/* ============ 数据短条 ============ */
.statbar{border-bottom:1px solid var(--line);background:rgba(11,19,34,.72)}
.statbar-inner{display:grid;grid-template-columns:repeat(4,1fr);gap:0}
.stat{padding:22px 20px;border-right:1px solid rgba(125,211,252,.12);display:flex;flex-direction:column;gap:4px}
.stat:last-child{border-right:none}
.stat-num{font-size:26px;font-weight:800;letter-spacing:.02em;color:#fff}
.stat-num i{font-style:normal;color:var(--amber)}
.stat-label{font-size:13px;color:var(--muted)}

/* ============ 板块标题 ============ */
.sec-head{display:flex;flex-direction:column;gap:10px;max-width:760px;margin-bottom:30px}
.sec-head h2{font-size:clamp(1.4rem,2.4vw,2rem)}
.sec-head p{color:var(--muted);font-size:15.5px}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12px;font-weight:700;letter-spacing:.2em;color:var(--cyan);
}
.eyebrow::before{content:"";width:22px;height:1px;background:linear-gradient(90deg,var(--cyan),transparent)}

/* ============ 筛选条 ============ */
.filterbar{
  display:flex;flex-wrap:wrap;gap:10px;align-items:center;
  padding:14px;
  margin-bottom:26px;
  border-radius:16px;
  background:var(--glass);
  border:1px solid var(--line);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  box-shadow:var(--shadow);
}
.filter-label{font-size:13px;color:var(--dim);padding:0 6px;font-weight:700;letter-spacing:.06em}
.chip{
  min-height:40px;
  padding:9px 16px;
  border-radius:999px;
  font-size:14px;
  font-weight:600;
  color:var(--muted);
  background:rgba(16,26,43,.8);
  border:1px solid var(--line);
  cursor:pointer;
  transition:all var(--dur) ease;
}
.chip:hover{color:#fff;border-color:var(--line-strong);box-shadow:0 0 18px rgba(34,211,238,.18)}
.chip.is-on{
  color:#08111F;
  background:linear-gradient(100deg,#22D3EE,#7C5CFF);
  border-color:transparent;
  box-shadow:0 0 0 1px rgba(34,211,238,.4), 0 0 24px rgba(34,211,238,.3);
}
.filter-count{margin-left:auto;font-size:13px;color:var(--dim);font-variant-numeric:tabular-nums}

/* ============ 非对称卡片网格 ============ */
.grid-entry{
  display:grid;
  grid-template-columns:repeat(12,1fr);
  gap:24px;
}
.card{
  position:relative;
  display:flex;flex-direction:column;
  border-radius:var(--r-card);
  background:var(--panel);
  border:1px solid var(--line);
  box-shadow:var(--shadow);
  overflow:hidden;
  transition:transform var(--dur) ease, border-color var(--dur) ease, box-shadow var(--dur) ease;
}
.card:hover{transform:translateY(-4px);border-color:rgba(34,211,238,.45);box-shadow:0 18px 48px rgba(0,0,0,.55), 0 0 0 1px rgba(34,211,238,.28), 0 0 30px rgba(34,211,238,.16)}
.card-media{position:relative;overflow:hidden;aspect-ratio:16/9;background:linear-gradient(135deg,#0d1728,#132038)}
.card-media img{width:100%;height:100%;object-fit:cover;border-radius:0;transition:transform .5s ease}
.card:hover .card-media img{transform:scale(1.045)}
.card-media::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg, rgba(7,12,22,.05) 30%, rgba(7,12,22,.82) 100%);
}
.card-badge{
  position:absolute;top:12px;left:12px;z-index:2;
  display:inline-flex;align-items:center;gap:6px;
  padding:5px 11px;border-radius:999px;
  font-size:12px;font-weight:700;
  color:#08111F;
  background:linear-gradient(100deg,#FFB020,#FFD27A);
  box-shadow:0 6px 18px rgba(255,176,32,.35);
}
.card-badge.is-cool{color:#EAF8FF;background:rgba(34,211,238,.18);border:1px solid rgba(34,211,238,.42);box-shadow:none}
.card-body{padding:18px 20px 20px;display:flex;flex-direction:column;gap:12px;flex:1 1 auto}
.card-body h3{font-size:1.25rem;font-weight:800}
.card-desc{color:var(--muted);font-size:14.5px;line-height:1.8}
.card-meta{display:flex;flex-wrap:wrap;gap:8px}
.card-foot{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-top:auto;padding-top:12px;border-top:1px solid rgba(125,211,252,.12)}
.card-facts{display:flex;gap:16px;font-size:13px;color:var(--dim);font-variant-numeric:tabular-nums}
.card-facts b{color:#DFEBFF;font-weight:700}
.arrow-link{display:inline-flex;align-items:center;gap:6px;font-weight:700;font-size:14.5px;color:var(--link)}
.arrow-link::after{content:"→";transition:transform var(--dur) ease}
.arrow-link:hover{text-decoration:none;color:#A5E4FF}
.arrow-link:hover::after{transform:translateX(4px)}

.span-7{grid-column:span 7}
.span-5{grid-column:span 5}
.span-6{grid-column:span 6}
.span-4{grid-column:span 4}
.card--feature{grid-column:span 7;grid-row:span 1}
.card--feature .card-media{aspect-ratio:16/10}
.card--tall{grid-column:span 5;background:linear-gradient(160deg, rgba(18,30,52,.9), rgba(12,20,36,.96))}
.card--wide{grid-column:span 6}

.empty-state{
  display:none;
  padding:28px;
  border-radius:16px;
  border:1px dashed rgba(125,211,252,.3);
  background:rgba(16,26,43,.6);
  color:var(--muted);
  text-align:center;
  font-size:15px;
}
.empty-state.is-on{display:block}

/* ============ 保障横条 ============ */
.assure{
  border-top:1px solid var(--line);
  border-bottom:1px solid var(--line);
  background:rgba(11,19,34,.66);
}
.assure-inner{display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:18px;padding:20px 0}
.assure-item{display:flex;align-items:center;gap:10px;font-size:14px;color:var(--muted);min-height:44px}
.assure-dot{
  width:10px;height:10px;flex:0 0 10px;border-radius:3px;transform:rotate(45deg);
  background:linear-gradient(135deg,var(--cyan),var(--violet));
  box-shadow:0 0 12px rgba(34,211,238,.6);
}
.assure-item b{color:#EAF3FF;font-weight:700}

/* ============ FAQ ============ */
.faq-list{max-width:900px;display:flex;flex-direction:column;gap:12px}
.faq-item{
  border-radius:16px;
  background:var(--glass);
  border:1px solid var(--line);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  overflow:hidden;
  transition:border-color var(--dur) ease, box-shadow var(--dur) ease;
}
.faq-item:hover{border-color:var(--line-strong)}
.faq-item.is-open{border-color:rgba(34,211,238,.42);box-shadow:0 0 26px rgba(34,211,238,.14)}
.faq-q{
  position:relative;
  width:100%;
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:18px 20px 18px 24px;
  background:none;border:none;
  color:var(--text);
  font-size:16px;font-weight:700;
  text-align:left;
  cursor:pointer;
  min-height:56px;
}
.faq-q::before{
  content:"";position:absolute;left:0;top:14px;bottom:14px;width:3px;border-radius:3px;
  background:rgba(125,211,252,.25);
  transition:all var(--dur) ease;
}
.faq-item.is-open .faq-q::before{background:linear-gradient(180deg,var(--cyan),var(--violet));box-shadow:0 0 12px rgba(34,211,238,.7)}
.faq-sign{
  position:relative;width:22px;height:22px;flex:0 0 22px;
  border-radius:50%;
  border:1px solid var(--line-strong);
}
.faq-sign::before,.faq-sign::after{
  content:"";position:absolute;left:50%;top:50%;transform:translate(-50%,-50%);
  background:var(--cyan);border-radius:2px;transition:all var(--dur) ease;
}
.faq-sign::before{width:10px;height:2px}
.faq-sign::after{width:2px;height:10px}
.faq-item.is-open .faq-sign::after{transform:translate(-50%,-50%) scaleY(0)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .3s ease}
.faq-a-inner{padding:0 24px 20px;color:var(--muted);font-size:15px;line-height:1.85}

/* ============ 底部 CTA ============ */
.cta-block{
  position:relative;
  overflow:hidden;
  border-radius:22px;
  border:1px solid var(--line-strong);
  background:linear-gradient(120deg, rgba(18,30,52,.94), rgba(12,20,36,.96));
  box-shadow:var(--shadow);
  padding:44px 40px;
  display:grid;
  grid-template-columns:1.4fr .9fr;
  gap:32px;
  align-items:center;
}
.cta-block::after{
  content:"";position:absolute;right:-60px;top:-70px;width:280px;height:280px;border-radius:50%;
  background:radial-gradient(circle, rgba(34,211,238,.22), transparent 66%);
  pointer-events:none;
}
.cta-block h2{font-size:clamp(1.35rem,2.2vw,1.85rem);margin-bottom:10px}
.cta-block p{color:var(--muted);font-size:15.5px;max-width:560px}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px;position:relative;z-index:2}
.cta-figure{position:relative;z-index:2;border-radius:16px;overflow:hidden;border:1px solid var(--line)}
.cta-figure img{width:100%;aspect-ratio:16/10;object-fit:cover;border-radius:0}

/* ============ 页脚 ============ */
.footer{position:relative;z-index:1;margin-top:16px;border-top:1px solid var(--line);background:linear-gradient(180deg, rgba(9,15,27,.9), rgba(6,10,19,.98));padding:52px 0 26px}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:32px}
.footer-brand p{color:var(--muted);font-size:14px;margin-top:14px;max-width:340px;line-height:1.85}
.footer h4{font-size:14px;letter-spacing:.08em;color:#DCE8FF;margin-bottom:14px;font-weight:800}
.footer ul{display:flex;flex-direction:column;gap:10px}
.footer ul a{color:var(--muted);font-size:14px;display:inline-flex;min-height:28px;align-items:center}
.footer ul a:hover{color:var(--link)}
.footer p{color:var(--muted);font-size:13.5px;line-height:1.9}
.footer-bottom{
  margin-top:34px;padding-top:18px;
  border-top:1px solid rgba(125,211,252,.12);
  display:flex;flex-wrap:wrap;gap:10px;justify-content:space-between;
  color:var(--dim);font-size:13px;
}

/* ============ 移动吸底 CTA ============ */
.mobile-cta{display:none}

/* ============ 响应式 ============ */
@media (max-width:1279px){
  :root{--sidebar-w:208px}
  .wrap{padding:0 20px}
  .span-7{grid-column:span 7}
  .span-5{grid-column:span 5}
  .span-4{grid-column:span 6}
}
@media (max-width:1023px){
  .sidebar{
    width:288px;
    transform:translateX(-104%);
    transition:transform .28s ease;
    box-shadow:0 0 60px rgba(0,0,0,.7);
  }
  body.drawer-open .sidebar{transform:translateX(0)}
  .topbar{display:flex}
  .main{margin-left:0}
  .section{padding:56px 0}
  .section-tight{padding:44px 0}
  .statbar-inner{grid-template-columns:repeat(2,1fr)}
  .stat{border-bottom:1px solid rgba(125,211,252,.12)}
  .stat:nth-child(2n){border-right:none}
  .stat:nth-child(n+3){border-bottom:none}
  .grid-entry{gap:20px}
  .span-7,.span-5,.span-6,.card--feature,.card--tall,.card--wide{grid-column:span 6}
  .cta-block{grid-template-columns:1fr;padding:32px 26px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:26px}
}
@media (max-width:767px){
  body{font-size:15.5px}
  .wrap{padding:0 16px}
  .hero-inner{padding:36px 0 32px;min-height:280px}
  .hero-sub{font-size:15.5px}
  .section{padding:44px 0}
  .section-tight{padding:36px 0}
  .statbar-inner{grid-template-columns:repeat(2,1fr)}
  .stat{padding:16px}
  .stat-num{font-size:22px}
  .grid-entry{grid-template-columns:1fr;gap:16px}
  .span-7,.span-5,.span-6,.span-4,.card--feature,.card--tall,.card--wide{grid-column:span 1}
  .filterbar{gap:8px;padding:12px}
  .filter-count{margin-left:0;width:100%}
  .assure-inner{gap:12px;padding:16px 0}
  .assure-item{font-size:13.5px}
  .cta-block{padding:26px 20px;border-radius:18px}
  .footer{padding:40px 0 96px}
  .footer-grid{grid-template-columns:1fr;gap:22px}
  .footer-bottom{flex-direction:column;gap:6px}
  .mobile-cta{
    display:flex;
    position:fixed;left:0;right:0;bottom:0;z-index:38;
    gap:10px;align-items:center;
    padding:10px 14px calc(10px + env(safe-area-inset-bottom));
    background:rgba(9,15,27,.94);
    backdrop-filter:blur(14px);
    -webkit-backdrop-filter:blur(14px);
    border-top:1px solid var(--line);
  }
  .mobile-cta .btn{flex:1 1 0;min-height:46px;padding:12px 10px;font-size:14.5px}
}
@media (max-width:480px){
  .wrap{padding:0 14px}
  .hero h1{font-size:1.6rem}
  .card-body{padding:16px}
  .card-body h3{font-size:1.1rem}
  .btn{padding:11px 18px;font-size:14.5px}
  .chip{padding:8px 13px;font-size:13.5px}
}
@media (prefers-reduced-motion: reduce){
  *{transition:none !important;animation:none !important}
}

/* roulang page: category2 */
:root{
  --bg:#070C16;
  --bg-deep:#050910;
  --panel:#101A2B;
  --panel-2:#0C1524;
  --glass:rgba(18,30,52,.62);
  --line:rgba(125,211,252,.18);
  --line-soft:rgba(125,211,252,.10);
  --cyan:#22D3EE;
  --violet:#7C5CFF;
  --amber:#FFB020;
  --text:#E8F1FF;
  --text-2:#A9B8D0;
  --text-3:#6F809B;
  --link:#7DD3FC;
  --link-visited:#A78BFA;
  --ok:#34D399;
  --warn:#F59E0B;
  --err:#F87171;
  --r-card:18px;
  --r-btn:999px;
  --r-img:14px;
  --shadow:0 10px 40px rgba(0,0,0,.45);
  --shadow-in:inset 0 1px rgba(255,255,255,.06);
  --glow:0 0 0 1px rgba(34,211,238,.35),0 0 28px rgba(34,211,238,.28);
  --sidebar-w:232px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:"Noto Sans SC","PingFang SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:16px;
  line-height:1.75;
  letter-spacing:.01em;
  overflow-x:hidden;
}
body::before{
  content:"";
  position:fixed;
  inset:0;
  pointer-events:none;
  z-index:0;
  background:
    radial-gradient(circle at 14% 8%,rgba(34,211,238,.10),transparent 42%),
    radial-gradient(circle at 82% 22%,rgba(124,92,255,.12),transparent 45%),
    radial-gradient(circle at 50% 96%,rgba(255,176,32,.06),transparent 50%),
    linear-gradient(115deg,transparent 0 48%,rgba(125,211,252,.05) 48% 48.4%,transparent 48.4% 100%);
}
img{max-width:100%;display:block}
a{color:var(--link);text-decoration:none;transition:color .18s ease,text-decoration-color .18s ease}
a:hover{color:#BDE9FF;text-decoration:underline;text-underline-offset:4px}
a:visited{color:var(--link-visited)}
a:focus-visible,button:focus-visible,summary:focus-visible,input:focus-visible{
  outline:2px solid var(--cyan);outline-offset:2px;border-radius:6px;
}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4{margin:0;line-height:1.32;font-weight:700;color:var(--text)}
p{margin:0 0 1em}
p:last-child{margin-bottom:0}
button{font:inherit;color:inherit;cursor:pointer}
.num{font-variant-numeric:tabular-nums}

/* ===== Topbar (mobile / tablet) ===== */
.topbar{
  position:sticky;top:0;z-index:70;
  display:flex;align-items:center;gap:14px;
  padding:10px 16px;
  background:rgba(9,16,30,.88);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  border-bottom:1px solid var(--line);
}
.menu-toggle{
  width:44px;height:44px;flex:0 0 44px;
  display:inline-flex;flex-direction:column;justify-content:center;gap:5px;
  background:var(--glass);border:1px solid var(--line);border-radius:12px;
  padding:0 11px;
  transition:border-color .2s ease,box-shadow .2s ease,transform .2s ease;
}
.menu-toggle:hover{border-color:rgba(34,211,238,.5);box-shadow:0 0 18px rgba(34,211,238,.18)}
.menu-toggle:active{transform:translateY(1px)}
.menu-toggle span{display:block;height:2px;border-radius:2px;background:var(--text-2)}
.menu-toggle span:nth-child(2){width:70%;background:var(--cyan)}
.brand{display:inline-flex;align-items:center;gap:10px;text-decoration:none}
.brand:hover{text-decoration:none}
.brand-mark{
  display:grid;grid-template-columns:repeat(3,1fr);gap:3px;
  width:30px;height:30px;flex:0 0 30px;
  padding:3px;border-radius:9px;
  background:linear-gradient(150deg,rgba(34,211,238,.18),rgba(124,92,255,.16));
  border:1px solid var(--line);
}
.brand-mark i{display:block;border-radius:50%;background:rgba(125,211,252,.45)}
.brand-mark i:nth-child(2),
.brand-mark i:nth-child(4),
.brand-mark i:nth-child(8){background:rgba(124,92,255,.75)}
.brand-mark i:nth-child(5){background:var(--amber);box-shadow:0 0 8px rgba(255,176,32,.8)}
.brand-text{display:flex;flex-direction:column;line-height:1.15}
.brand-name{font-size:15px;font-weight:800;color:var(--text);letter-spacing:.02em}
.brand-sub{font-size:11px;color:var(--text-3);letter-spacing:.06em}
.topbar-cta{margin-left:auto;flex:0 0 auto}

/* ===== Buttons ===== */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:44px;padding:11px 22px;
  border-radius:var(--r-btn);
  font-size:15px;font-weight:700;
  border:1px solid transparent;
  cursor:pointer;
  transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease,background-color .2s ease,color .2s ease;
  text-decoration:none;
}
.btn:hover{text-decoration:none;transform:translateY(-2px)}
.btn:active{transform:translateY(0)}
.btn:disabled,.btn[aria-disabled="true"]{opacity:.45;cursor:not-allowed;transform:none}
.btn-primary{
  color:#22160A;
  background:linear-gradient(100deg,var(--amber) 0%,#FFD070 46%,var(--cyan) 140%);
  box-shadow:0 8px 26px rgba(255,176,32,.26),var(--shadow-in);
}
.btn-primary:hover{box-shadow:0 12px 34px rgba(255,176,32,.36),0 0 0 1px rgba(255,209,112,.5)}
.btn-ghost{
  color:var(--text);
  background:var(--glass);
  border-color:var(--line);
  backdrop-filter:blur(12px);
  -webkit-backdrop-filter:blur(12px);
}
.btn-ghost:hover{border-color:rgba(34,211,238,.55);box-shadow:0 0 22px rgba(34,211,238,.2)}
.btn-text{
  display:inline-flex;align-items:center;gap:6px;
  min-height:40px;padding:6px 4px;
  color:var(--link);font-weight:700;font-size:14px;
  background:none;border:0;
}
.btn-text:hover{color:#CFF0FF;text-decoration:underline;text-underline-offset:4px}
.btn-sm{min-height:38px;padding:8px 16px;font-size:13.5px}

/* ===== Tags & badges ===== */
.tag{
  display:inline-flex;align-items:center;gap:5px;
  padding:3px 10px;border-radius:999px;
  font-size:12px;font-weight:600;line-height:1.6;letter-spacing:.02em;
  background:rgba(125,211,252,.10);
  border:1px solid rgba(125,211,252,.24);
  color:#9FE3FF;
  white-space:nowrap;
}
.tag-amber{background:rgba(255,176,32,.12);border-color:rgba(255,176,32,.34);color:#FFD07A}
.tag-violet{background:rgba(124,92,255,.14);border-color:rgba(124,92,255,.36);color:#C4B4FF}
.tag-ok{background:rgba(52,211,153,.12);border-color:rgba(52,211,153,.32);color:#7EE8BE}

/* ===== Sidebar ===== */
.sidebar{
  position:fixed;top:0;left:0;bottom:0;
  width:var(--sidebar-w);
  z-index:80;
  display:flex;flex-direction:column;gap:22px;
  padding:22px 16px 24px;
  background:linear-gradient(180deg,#0A1120 0%,#080E1A 100%);
  border-right:1px solid var(--line);
  overflow-y:auto;
  transition:transform .28s ease;
}
.sidebar .brand{padding:0 4px 18px;border-bottom:1px solid var(--line-soft)}
.side-nav{display:flex;flex-direction:column;gap:6px}
.side-nav-label{font-size:11.5px;letter-spacing:.16em;color:var(--text-3);padding:0 10px 8px}
.side-link{
  position:relative;
  display:flex;align-items:center;gap:10px;
  min-height:46px;padding:10px 12px 10px 16px;
  border-radius:12px;
  color:var(--text-2);font-size:14.5px;font-weight:600;
  text-decoration:none;
  transition:background-color .2s ease,color .2s ease,box-shadow .2s ease;
}
.side-link::before{
  content:"";position:absolute;left:0;top:11px;bottom:11px;width:3px;border-radius:3px;
  background:linear-gradient(180deg,var(--cyan),var(--violet));
  opacity:0;transition:opacity .2s ease;
}
.side-link i{width:7px;height:7px;border-radius:2px;background:rgba(125,211,252,.35);flex:0 0 7px;transform:rotate(45deg)}
.side-link:hover{background:rgba(125,211,252,.08);color:var(--text);text-decoration:none}
.side-link:hover i{background:var(--cyan)}
.side-link.active{
  color:#FFFFFF;background:rgba(34,211,238,.10);
  box-shadow:0 0 20px rgba(34,211,238,.12);
}
.side-link.active::before{opacity:1}
.side-link.active i{background:var(--amber);box-shadow:0 0 10px rgba(255,176,32,.7)}
.side-cta{width:100%;margin-top:auto}
.side-note{
  font-size:12.5px;color:var(--text-3);line-height:1.7;
  padding:12px;border-radius:12px;
  background:rgba(16,26,43,.7);border:1px solid var(--line-soft);
}
.overlay{
  position:fixed;inset:0;z-index:75;
  background:rgba(3,7,14,.7);
  backdrop-filter:blur(2px);
  opacity:0;visibility:hidden;transition:opacity .24s ease,visibility .24s ease;
}
.overlay.is-open{opacity:1;visibility:visible}

/* ===== Layout ===== */
.main{margin-left:0;position:relative;z-index:1}
.wrap{max-width:1280px;margin:0 auto;padding:0 24px}
section{padding:72px 0}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;margin-bottom:28px;flex-wrap:wrap}
.section-head h2{font-size:clamp(1.5rem,2.6vw,2.25rem);letter-spacing:.01em}
.section-head p{margin:8px 0 0;color:var(--text-2);font-size:15px;max-width:62ch}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12.5px;letter-spacing:.16em;color:var(--cyan);font-weight:700;
  text-transform:none;margin-bottom:12px;
}
.eyebrow::before{content:"";width:22px;height:1px;background:linear-gradient(90deg,var(--cyan),transparent)}

/* ===== Hero ===== */
.hero{
  position:relative;
  padding:0;
  border-bottom:1px solid var(--line-soft);
  background-image:linear-gradient(100deg,rgba(5,9,16,.94) 0%,rgba(7,12,22,.86) 46%,rgba(7,12,22,.62) 100%),url('/assets/images/backpic/back-2.png');
  background-size:cover;
  background-position:center right;
  background-repeat:no-repeat;
}
.hero-inner{
  min-height:340px;
  display:flex;flex-direction:column;justify-content:center;
  gap:16px;padding:52px 0 46px;
}
.crumbs{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--text-3);flex-wrap:wrap}
.crumbs a{color:var(--text-2)}
.crumbs a:hover{color:var(--cyan)}
.crumbs span.sep{color:var(--text-3);opacity:.6}
.hero h1{
  font-size:clamp(1.8rem,3.5vw,2.9rem);
  font-weight:800;
  letter-spacing:.005em;
  max-width:22ch;
}
.hero-sub{color:var(--text-2);font-size:17px;max-width:60ch;margin:0}
.hero-actions{display:flex;gap:12px;flex-wrap:wrap;margin-top:6px}
.hero-strip{
  display:flex;gap:28px;flex-wrap:wrap;
  margin-top:12px;padding-top:18px;border-top:1px solid var(--line-soft);
}
.hero-strip div{display:flex;flex-direction:column;gap:2px}
.hero-strip strong{font-size:22px;font-weight:800;color:#FFFFFF;font-variant-numeric:tabular-nums}
.hero-strip span{font-size:12.5px;color:var(--text-3);letter-spacing:.04em}

/* ===== Filter + list ===== */
.browse .wrap{display:grid;grid-template-columns:repeat(12,1fr);gap:24px;align-items:start}
.filters{
  grid-column:span 3;
  position:sticky;top:24px;
  padding:20px;
  border-radius:var(--r-card);
  background:var(--panel);
  border:1px solid var(--line-soft);
  box-shadow:var(--shadow);
}
.filter-head{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:6px}
.filter-head h2{font-size:16px;letter-spacing:.02em}
.filter-toggle{
  display:none;
  min-height:40px;padding:8px 14px;border-radius:var(--r-btn);
  background:var(--glass);border:1px solid var(--line);color:var(--text-2);font-size:13.5px;font-weight:700;
}
.filter-group{padding:16px 0;border-top:1px solid var(--line-soft)}
.filter-group:first-of-type{border-top:0}
.filter-group h4{font-size:13px;letter-spacing:.1em;color:var(--text-3);font-weight:700;margin-bottom:12px}
.filter-opt{
  display:flex;align-items:center;gap:10px;
  min-height:38px;padding:6px 8px;border-radius:10px;
  font-size:14px;color:var(--text-2);cursor:pointer;
  transition:background-color .18s ease,color .18s ease;
}
.filter-opt:hover{background:rgba(125,211,252,.08);color:var(--text)}
.filter-opt input{
  appearance:none;-webkit-appearance:none;
  width:16px;height:16px;flex:0 0 16px;margin:0;
  border-radius:5px;border:1px solid rgba(125,211,252,.4);
  background:rgba(7,12,22,.7);
  transition:background-color .18s ease,border-color .18s ease;
}
.filter-opt input:checked{background:var(--cyan);border-color:var(--cyan);box-shadow:0 0 12px rgba(34,211,238,.5)}
.filter-opt input:focus-visible{outline:2px solid var(--cyan);outline-offset:2px}
.filter-reset{
  margin-top:14px;width:100%;
}
.list-col{grid-column:span 9;display:flex;flex-direction:column;gap:18px}
.list-bar{
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  padding:14px 18px;border-radius:14px;
  background:var(--glass);border:1px solid var(--line);
  backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
}
.list-bar p{margin:0;font-size:14px;color:var(--text-2)}
.list-bar strong{color:#fff;font-variant-numeric:tabular-nums}
.list-bar .chips{display:flex;gap:8px;flex-wrap:wrap}

.news-item{
  display:grid;grid-template-columns:168px 1fr;gap:20px;
  padding:18px;
  border-radius:var(--r-card);
  background:var(--panel);
  border:1px solid var(--line-soft);
  box-shadow:var(--shadow),var(--shadow-in);
  transition:transform .22s ease,border-color .22s ease,box-shadow .22s ease;
}
.news-item:hover{
  transform:translateY(-3px);
  border-color:rgba(34,211,238,.42);
  box-shadow:0 18px 46px rgba(0,0,0,.5),0 0 26px rgba(34,211,238,.14);
}
.news-thumb{
  display:block;border-radius:var(--r-img);overflow:hidden;
  aspect-ratio:16/10;background:linear-gradient(140deg,#132038,#0B1424);
}
.news-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .35s ease}
.news-item:hover .news-thumb img{transform:scale(1.05)}
.news-body{display:flex;flex-direction:column;gap:8px;min-width:0}
.news-meta{display:flex;align-items:center;gap:10px;flex-wrap:wrap;font-size:12.5px;color:var(--text-3)}
.news-title{font-size:18px;line-height:1.45}
.news-title a{color:var(--text);text-decoration:none}
.news-title a:hover{color:var(--cyan);text-decoration:none}
.news-desc{
  margin:0;font-size:14.5px;color:var(--text-2);line-height:1.75;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.news-foot{
  display:flex;align-items:center;justify-content:space-between;gap:12px;flex-wrap:wrap;
  margin-top:auto;padding-top:10px;border-top:1px dashed var(--line-soft);
}
.news-foot .scope{font-size:12.5px;color:var(--text-3)}
.news-foot .scope b{color:var(--ok);font-weight:700}

.pager{display:flex;align-items:center;justify-content:center;gap:8px;margin-top:8px;flex-wrap:wrap}
.pager a,.pager span{
  min-width:44px;min-height:44px;
  display:inline-flex;align-items:center;justify-content:center;
  padding:0 14px;border-radius:12px;font-size:14px;font-weight:700;
  background:var(--panel);border:1px solid var(--line-soft);color:var(--text-2);text-decoration:none;
  transition:border-color .2s ease,color .2s ease,background-color .2s ease;
}
.pager a:hover{border-color:rgba(34,211,238,.5);color:#fff;text-decoration:none}
.pager .current{background:rgba(34,211,238,.14);border-color:rgba(34,211,238,.45);color:#fff}
.pager .disabled{opacity:.4}

/* ===== Info cards row ===== */
.assure{
  border-top:1px solid var(--line-soft);border-bottom:1px solid var(--line-soft);
  background:rgba(11,20,36,.6);
  padding:22px 0;
}
.assure ul{display:flex;gap:34px;flex-wrap:wrap;justify-content:space-between}
.assure li{display:flex;align-items:center;gap:10px;font-size:14.5px;color:var(--text-2);font-weight:600}
.assure li b{
  display:inline-flex;align-items:center;justify-content:center;
  width:34px;height:34px;border-radius:10px;
  background:rgba(34,211,238,.12);border:1px solid rgba(34,211,238,.28);
  color:var(--cyan);font-size:13px;font-weight:800;
}

/* ===== FAQ ===== */
.faq{max-width:900px;margin:0 auto}
.faq details{
  border-radius:16px;
  background:var(--glass);
  border:1px solid var(--line);
  backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
  margin-bottom:12px;overflow:hidden;
  transition:border-color .2s ease,box-shadow .2s ease;
}
.faq details[open]{border-color:rgba(34,211,238,.42);box-shadow:0 0 24px rgba(34,211,238,.12)}
.faq summary{
  position:relative;
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:18px 20px 18px 24px;
  font-size:16px;font-weight:700;color:var(--text);
  cursor:pointer;list-style:none;
}
.faq summary::-webkit-details-marker{display:none}
.faq summary::before{
  content:"";position:absolute;left:0;top:16px;bottom:16px;width:3px;border-radius:3px;
  background:linear-gradient(180deg,var(--cyan),var(--violet));
  opacity:0;transition:opacity .2s ease;
}
.faq details[open] summary::before{opacity:1}
.faq summary::after{
  content:"+";flex:0 0 auto;
  width:28px;height:28px;display:inline-flex;align-items:center;justify-content:center;
  border-radius:9px;border:1px solid var(--line);color:var(--cyan);font-size:17px;font-weight:700;
  background:rgba(34,211,238,.08);
}
.faq details[open] summary::after{content:"−";background:rgba(255,176,32,.14);border-color:rgba(255,176,32,.4);color:var(--amber)}
.faq .answer{padding:0 24px 20px;color:var(--text-2);font-size:15px;line-height:1.85}

/* ===== CTA ===== */
.cta-band{
  border-radius:22px;
  padding:36px;
  display:grid;grid-template-columns:1.4fr auto;gap:24px;align-items:center;
  background-image:linear-gradient(100deg,rgba(9,16,30,.94),rgba(16,26,43,.78)),url('/assets/images/backpic/back-3.png');
  background-size:cover;background-position:center;
  border:1px solid var(--line);
  box-shadow:var(--shadow);
}
.cta-band h2{font-size:clamp(1.4rem,2.3vw,1.95rem)}
.cta-band p{margin:10px 0 0;color:var(--text-2);font-size:15px;max-width:64ch}
.cta-band .actions{display:flex;gap:12px;flex-wrap:wrap}

/* ===== Footer ===== */
.footer{
  margin-top:80px;
  border-top:1px solid var(--line);
  background:linear-gradient(180deg,#080E1A 0%,#050910 100%);
  padding:56px 0 26px;
}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:32px}
.footer h4{font-size:14px;letter-spacing:.08em;color:var(--text);margin-bottom:14px}
.footer p{color:var(--text-2);font-size:14px;line-height:1.8}
.footer ul{display:flex;flex-direction:column;gap:10px}
.footer ul a{color:var(--text-2);font-size:14px}
.footer ul a:hover{color:var(--cyan)}
.footer-brand .brand{margin-bottom:14px}
.footer-bottom{
  margin-top:36px;padding-top:20px;
  border-top:1px solid var(--line-soft);
  display:flex;align-items:center;justify-content:space-between;gap:14px;flex-wrap:wrap;
  font-size:13px;color:var(--text-3);
}

/* ===== Mobile sticky CTA ===== */
.mobile-cta{
  display:none;
  position:fixed;left:0;right:0;bottom:0;z-index:65;
  padding:10px 16px calc(10px + env(safe-area-inset-bottom));
  background:rgba(8,14,26,.94);
  backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
  border-top:1px solid var(--line);
  gap:10px;
}
.mobile-cta .btn{flex:1}

/* ===== Responsive ===== */
@media (min-width:1024px){
  .topbar{display:none}
  .main{margin-left:208px}
  .mobile-cta{display:none}
}
@media (min-width:1280px){
  :root{--sidebar-w:232px}
  .main{margin-left:232px}
}
@media (max-width:1279px){
  .browse .wrap{grid-template-columns:repeat(12,1fr);gap:20px}
  .filters{grid-column:span 3}
  .list-col{grid-column:span 9}
}
@media (max-width:1023px){
  .sidebar{transform:translateX(-102%);box-shadow:0 0 60px rgba(0,0,0,.6)}
  .sidebar.is-open{transform:translateX(0)}
  .main{margin-left:0}
  section{padding:60px 0}
  .browse .wrap{grid-template-columns:1fr;gap:18px}
  .filters,.list-col{grid-column:span 12}
  .filters{position:static;padding:16px}
  .filter-head{margin-bottom:0}
  .filter-toggle{display:inline-flex}
  .filter-body{display:none;margin-top:10px}
  .filters.is-open .filter-body{display:block}
  .footer-grid{grid-template-columns:1fr 1fr;gap:26px}
  .cta-band{grid-template-columns:1fr;padding:28px}
}
@media (max-width:767px){
  .hero-inner{min-height:auto;padding:36px 0 32px;gap:14px}
  .hero-strip{gap:18px}
  .news-item{grid-template-columns:1fr;gap:14px;padding:16px}
  .news-thumb{aspect-ratio:16/9}
  .assure ul{gap:16px;flex-direction:column}
  .footer-grid{grid-template-columns:1fr;gap:24px}
  .mobile-cta{display:flex}
  .footer{margin-bottom:74px}
  .topbar-cta{display:none}
}
@media (max-width:519px){
  .wrap{padding:0 16px}
  section{padding:44px 0}
  .hero h1{max-width:none}
  .hero-sub{font-size:15.5px}
  .brand-name{font-size:14px}
  .brand-sub{display:none}
  .cta-band{padding:22px;border-radius:18px}
  .list-bar{padding:12px 14px}
  .news-title{font-size:16.5px}
}

/* roulang page: category3 */
*,*::before,*::after{box-sizing:border-box}
:root{
  --bg:#070C16;
  --bg-soft:#0B1322;
  --panel:#101A2B;
  --panel-2:#0C1524;
  --glass:rgba(18,30,52,.62);
  --glass-line:rgba(125,211,252,.18);
  --line:rgba(125,211,252,.14);
  --cyan:#22D3EE;
  --violet:#7C5CFF;
  --amber:#FFB020;
  --text:#E8F1FF;
  --text-2:#A9B8D0;
  --text-3:#6F809B;
  --link:#7DD3FC;
  --link-visited:#A78BFA;
  --ok:#34D399;
  --warn:#F59E0B;
  --err:#F87171;
  --radius-card:18px;
  --radius-btn:999px;
  --radius-img:14px;
  --shadow:0 10px 40px rgba(0,0,0,.45), inset 0 1px rgba(255,255,255,.06);
  --glow:0 0 0 1px rgba(34,211,238,.35), 0 0 28px rgba(34,211,238,.28);
  --sidebar-w:232px;
  --wrap:1280px;
}
html{scroll-behavior:smooth}
body{
  margin:0;
  background-color:var(--bg);
  color:var(--text);
  font-family:"Noto Sans SC","PingFang SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
  font-size:16px;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
  overflow-x:hidden;
}
body::before{
  content:"";position:fixed;inset:0;z-index:0;pointer-events:none;
  background-image:
    radial-gradient(1.5px 1.5px at 40px 60px, rgba(226,240,255,.45), transparent 60%),
    radial-gradient(1.3px 1.3px at 190px 230px, rgba(125,211,252,.38), transparent 60%),
    radial-gradient(1.6px 1.6px at 330px 120px, rgba(167,139,250,.32), transparent 60%),
    radial-gradient(1.2px 1.2px at 120px 300px, rgba(255,176,32,.25), transparent 60%);
  background-size:420px 340px;
  opacity:.55;
}
body::after{
  content:"";position:fixed;inset:0;z-index:0;pointer-events:none;
  background-image:
    linear-gradient(rgba(125,211,252,.05) 1px, transparent 1px),
    linear-gradient(90deg, rgba(125,211,252,.05) 1px, transparent 1px);
  background-size:72px 72px;
  -webkit-mask-image:radial-gradient(ellipse at 55% 0%, #000 0%, transparent 72%);
  mask-image:radial-gradient(ellipse at 55% 0%, #000 0%, transparent 72%);
}
img{max-width:100%;display:block}
a{color:var(--link);text-decoration:none;transition:color .2s ease, text-decoration-color .2s ease}
a:hover{text-decoration:underline;text-underline-offset:3px}
a:visited{color:var(--link-visited)}
a:focus-visible,button:focus-visible,summary:focus-visible{outline:2px solid var(--cyan);outline-offset:2px;border-radius:6px}
button{font:inherit;cursor:pointer}
h1,h2,h3,h4{margin:0;line-height:1.3;font-weight:800;letter-spacing:.01em}
p{margin:0}
ul{margin:0;padding:0;list-style:none}
.wrap{width:100%;max-width:var(--wrap);margin:0 auto;padding:0 24px}
.tnum{font-variant-numeric:tabular-nums}

/* ============ 布局 ============ */
.app{position:relative;z-index:1}
.sidebar{
  position:fixed;top:0;left:0;bottom:0;width:var(--sidebar-w);z-index:60;
  display:flex;flex-direction:column;gap:18px;
  padding:22px 16px 20px;
  background:linear-gradient(180deg, rgba(16,26,43,.92), rgba(9,15,26,.94));
  border-right:1px solid var(--glass-line);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
}
.content{margin-left:var(--sidebar-w);min-height:100vh;display:flex;flex-direction:column}
.main{flex:1}

/* ============ 品牌 ============ */
.brand{display:flex;align-items:center;gap:10px;text-decoration:none;color:var(--text)}
.brand:hover{text-decoration:none}
.brand-mark{
  flex:none;width:32px;height:32px;padding:3px;border-radius:10px;
  display:grid;grid-template-columns:repeat(3,1fr);gap:2px;
  background:rgba(125,211,252,.10);
  border:1px solid rgba(125,211,252,.22);
}
.brand-mark i{border-radius:2px;background:rgba(125,211,252,.30)}
.brand-mark i:nth-child(5){background:linear-gradient(135deg,var(--cyan),var(--violet));box-shadow:0 0 10px rgba(34,211,238,.6)}
.brand-text{display:flex;flex-direction:column;line-height:1.25}
.brand-name{font-size:15px;font-weight:800;letter-spacing:.02em;color:var(--text)}
.brand-sub{font-size:11px;color:var(--text-3);letter-spacing:.06em}

/* ============ 侧栏导航 ============ */
.side-nav{display:flex;flex-direction:column;gap:6px}
.nav-item{
  position:relative;display:flex;align-items:center;gap:10px;
  min-height:44px;padding:0 12px;border-radius:12px;
  color:var(--text-2);font-size:14.5px;font-weight:500;text-decoration:none;
  transition:background .2s ease,color .2s ease,transform .2s ease;
}
.nav-item:hover{background:rgba(125,211,252,.08);color:var(--text);text-decoration:none;transform:translateX(2px)}
.nav-item .ico{
  flex:none;width:18px;height:18px;border-radius:5px;position:relative;
  background:rgba(125,211,252,.12);border:1px solid rgba(125,211,252,.26);
}
.nav-item .ico::after{
  content:"";position:absolute;inset:4px;border-radius:2px;
  background:linear-gradient(135deg,var(--cyan),var(--violet));opacity:.65;
}
.nav-item.active{
  color:var(--text);background:rgba(34,211,238,.10);
  box-shadow:0 0 0 1px rgba(34,211,238,.22), 0 0 22px rgba(34,211,238,.12);
}
.nav-item.active::before{
  content:"";position:absolute;left:0;top:8px;bottom:8px;width:3px;border-radius:3px;
  background:linear-gradient(180deg,var(--cyan),var(--violet));
  box-shadow:0 0 12px rgba(34,211,238,.7);
}
.nav-item.active .ico{background:rgba(34,211,238,.18);border-color:rgba(34,211,238,.5)}
.side-foot{margin-top:auto;display:flex;flex-direction:column;gap:10px}
.side-note{font-size:12px;color:var(--text-3);line-height:1.6}
.side-cta{width:100%}

/* ============ 顶部栏（移动端） ============ */
.topbar{
  position:sticky;top:0;z-index:40;
  display:flex;align-items:center;gap:12px;
  padding:12px 20px;
  background:rgba(7,12,22,.86);
  border-bottom:1px solid var(--glass-line);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
}
.menu-toggle{
  flex:none;width:44px;height:44px;border-radius:12px;
  display:flex;flex-direction:column;align-items:center;justify-content:center;gap:5px;
  background:var(--glass);border:1px solid var(--glass-line);color:var(--text);
}
.menu-toggle span{display:block;width:18px;height:2px;border-radius:2px;background:var(--text-2);transition:background .2s}
.menu-toggle:hover span{background:var(--cyan)}
.topbar .brand{flex:1;min-width:0}
.topbar-cta{margin-left:auto;flex:none}
.mask{
  position:fixed;inset:0;z-index:55;background:rgba(4,8,15,.66);
  opacity:0;visibility:hidden;transition:opacity .28s ease,visibility .28s ease;
  backdrop-filter:blur(2px);
}
.mask.show{opacity:1;visibility:visible}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:44px;padding:0 22px;border-radius:var(--radius-btn);
  font-size:15px;font-weight:600;letter-spacing:.01em;
  border:1px solid transparent;text-decoration:none;cursor:pointer;
  transition:transform .2s ease, box-shadow .25s ease, background .2s ease, border-color .2s ease, color .2s ease;
}
.btn:hover{text-decoration:none}
.btn-primary{
  background:linear-gradient(120deg,#FFB020 0%,#FFD063 40%,#22D3EE 100%);
  color:#07101F;
  box-shadow:0 8px 24px rgba(255,176,32,.22);
}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 12px 32px rgba(255,176,32,.32),0 0 0 1px rgba(34,211,238,.45)}
.btn-primary:active{transform:translateY(0);box-shadow:0 6px 18px rgba(255,176,32,.2)}
.btn-ghost{
  background:var(--glass);color:var(--text);
  border-color:rgba(125,211,252,.28);
  backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
}
.btn-ghost:hover{transform:translateY(-2px);border-color:rgba(34,211,238,.55);box-shadow:0 0 22px rgba(34,211,238,.22)}
.btn-ghost:active{transform:translateY(0)}
.btn:disabled,.btn[aria-disabled="true"]{opacity:.45;pointer-events:none}
.btn-text{
  display:inline-flex;align-items:center;gap:6px;min-height:44px;
  color:var(--link);font-weight:600;font-size:14.5px;text-decoration:none;
}
.btn-text::after{content:"→";transition:transform .2s ease}
.btn-text:hover{text-decoration:underline;text-underline-offset:3px}
.btn-text:hover::after{transform:translateX(3px)}

/* ============ 通用板块 ============ */
.section{padding:88px 0 0}
.section-head{max-width:760px;margin-bottom:32px}
.section-head h2{font-size:clamp(1.5rem,2.6vw,2.25rem);margin-bottom:14px}
.section-head p{color:var(--text-2);font-size:16px}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  padding:5px 14px;border-radius:999px;margin-bottom:16px;
  font-size:12.5px;font-weight:600;letter-spacing:.08em;
  color:var(--cyan);
  background:rgba(34,211,238,.10);
  border:1px solid rgba(34,211,238,.28);
}
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13.5px;color:var(--text-3);padding:20px 0 0}
.breadcrumb a{color:var(--text-2)}
.breadcrumb span.sep{color:var(--text-3);opacity:.7}
.breadcrumb .current{color:var(--cyan)}

/* ============ Hero ============ */
.hero{position:relative;margin-top:20px;border-radius:24px;overflow:hidden;border:1px solid var(--glass-line);box-shadow:var(--shadow)}
.hero-bg{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;opacity:.34}
.hero::after{
  content:"";position:absolute;inset:0;
  background:
    radial-gradient(600px 320px at 12% 10%, rgba(34,211,238,.18), transparent 70%),
    radial-gradient(520px 300px at 88% 88%, rgba(124,92,255,.20), transparent 72%),
    linear-gradient(120deg, rgba(7,12,22,.94) 0%, rgba(7,12,22,.78) 55%, rgba(7,12,22,.9) 100%);
}
.hero-inner{
  position:relative;z-index:2;
  display:grid;grid-template-columns:1.15fr .85fr;gap:36px;
  padding:52px 44px 44px;
}
.hero-copy h1{font-size:clamp(2rem,4.2vw,3.2rem);margin-bottom:18px}
.hero-sub{font-size:17px;color:var(--text-2);max-width:560px}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin:28px 0 32px}
.hero-stats{display:flex;flex-wrap:wrap;gap:28px;padding-top:22px;border-top:1px solid var(--glass-line)}
.hero-stats li{display:flex;flex-direction:column;gap:2px}
.hero-stats strong{font-size:24px;font-weight:800;color:var(--amber);font-variant-numeric:tabular-nums;line-height:1.2}
.hero-stats span{font-size:13px;color:var(--text-3)}
.hero-panel{
  align-self:center;
  padding:24px 24px 22px;border-radius:var(--radius-card);
  background:var(--glass);
  border:1px solid var(--glass-line);
  box-shadow:var(--shadow);
  backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
}
.hero-panel h2{font-size:17px;margin-bottom:16px;display:flex;align-items:center;gap:8px}
.hero-panel h2::before{content:"";width:8px;height:8px;border-radius:50%;background:var(--amber);box-shadow:0 0 12px rgba(255,176,32,.8)}
.hero-panel li{display:flex;gap:12px;padding:11px 0;border-bottom:1px dashed rgba(125,211,252,.16);font-size:14.5px;color:var(--text-2)}
.hero-panel li:last-child{border-bottom:none;padding-bottom:0}
.hero-panel li b{color:var(--text);font-weight:700;flex:none;min-width:76px}

/* ============ 对比矩阵 ============ */
.matrix{
  border-radius:var(--radius-card);overflow:hidden;
  border:1px solid var(--glass-line);
  background:var(--panel);
  box-shadow:var(--shadow);
}
.matrix-scroll{overflow-x:auto;overscroll-behavior-x:contain}
.matrix-grid{display:grid;grid-template-columns:200px repeat(3,minmax(210px,1fr));min-width:860px}
.m-row{display:contents}
.m-cell{
  padding:16px 18px;font-size:14.5px;line-height:1.7;color:var(--text-2);
  border-bottom:1px solid rgba(125,211,252,.10);
  border-right:1px solid rgba(125,211,252,.08);
}
.m-cell:last-child{border-right:none}
.m-head{
  font-size:15px;font-weight:800;color:var(--text);
  background:linear-gradient(180deg,#13223c,#0d1729);
  border-bottom:1px solid rgba(34,211,238,.28);
}
.m-corner{color:var(--cyan);letter-spacing:.04em}
.m-label{
  position:sticky;left:0;z-index:2;
  background:var(--panel-2);
  color:var(--text);font-weight:700;font-size:14px;
  border-right:1px solid rgba(125,211,252,.18);
}
.m-row.is-diff .m-cell{background:rgba(255,176,32,.06)}
.m-row.is-diff .m-label{background:rgba(255,176,32,.10);color:var(--amber)}
.m-row.is-diff .m-cell::before{content:"";}
.m-matrix-note{
  display:flex;flex-wrap:wrap;align-items:center;gap:10px;
  margin-top:16px;font-size:13.5px;color:var(--text-3);
}
.m-matrix-note .dot{width:8px;height:8px;border-radius:50%;background:var(--amber);box-shadow:0 0 10px rgba(255,176,32,.8);flex:none}
.scroll-hint{display:none;font-size:13px;color:var(--text-3);margin-top:10px}

/* ============ 说明卡 ============ */
.notes{display:grid;grid-template-columns:1.4fr 1fr 1fr;gap:24px;align-items:stretch}
.note-card{
  display:flex;flex-direction:column;overflow:hidden;
  border-radius:var(--radius-card);
  background:var(--panel);
  border:1px solid var(--glass-line);
  box-shadow:var(--shadow);
  transition:transform .25s ease,border-color .25s ease,box-shadow .25s ease;
}
.note-card:hover{transform:translateY(-4px);border-color:rgba(34,211,238,.45);box-shadow:0 18px 46px rgba(0,0,0,.5),0 0 0 1px rgba(34,211,238,.28)}
.note-cover{position:relative;width:100%;aspect-ratio:16/10;overflow:hidden;background:#0b1424}
.note-cover img{width:100%;height:100%;object-fit:cover;transition:transform .5s ease}
.note-card:hover .note-cover img{transform:scale(1.05)}
.note-cover::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(7,12,22,0) 40%,rgba(7,12,22,.85) 100%)}
.note-badge{
  position:absolute;left:14px;top:14px;z-index:2;
  padding:4px 12px;border-radius:999px;font-size:12px;font-weight:700;
  color:#07101F;background:linear-gradient(120deg,#FFB020,#22D3EE);
}
.note-body{padding:20px 20px 22px;display:flex;flex-direction:column;gap:10px;flex:1}
.note-body h3{font-size:17px}
.note-body p{font-size:14.5px;color:var(--text-2)}
.note-body .btn-text{margin-top:auto}

/* ============ 场景对照 ============ */
.scene-grid{display:grid;grid-template-columns:1fr 1fr;gap:24px}
.scene{
  padding:28px 26px;border-radius:var(--radius-card);
  background:var(--panel);
  border:1px solid var(--glass-line);
  box-shadow:var(--shadow);
}
.scene.alt{background:linear-gradient(160deg, rgba(34,211,238,.08), rgba(124,92,255,.08)), var(--panel)}
.scene h3{font-size:19px;margin-bottom:8px;display:flex;align-items:center;gap:10px}
.scene h3 em{
  font-style:normal;font-size:12px;font-weight:700;padding:3px 10px;border-radius:999px;
  color:var(--cyan);background:rgba(34,211,238,.12);border:1px solid rgba(34,211,238,.3);
}
.scene > p{color:var(--text-2);font-size:14.5px;margin-bottom:16px}
.scene ul{display:flex;flex-direction:column;gap:12px}
.scene li{display:flex;gap:10px;font-size:14.5px;color:var(--text-2);line-height:1.7}
.scene li::before{
  content:"";flex:none;width:7px;height:7px;margin-top:9px;border-radius:50%;
  background:linear-gradient(135deg,var(--cyan),var(--violet));
}
.scene li b{color:var(--text);font-weight:700}

/* ============ 流程条 ============ */
.order-steps{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.step{
  position:relative;padding:24px 20px;border-radius:var(--radius-card);
  background:var(--glass);border:1px solid var(--glass-line);
  backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
  transition:transform .25s ease,border-color .25s ease;
}
.step:hover{transform:translateY(-4px);border-color:rgba(34,211,238,.42)}
.step b{
  display:inline-flex;align-items:center;justify-content:center;
  width:34px;height:34px;border-radius:11px;margin-bottom:14px;
  font-size:15px;font-weight:800;color:#07101F;font-variant-numeric:tabular-nums;
  background:linear-gradient(135deg,#FFB020,#22D3EE);
}
.step h3{font-size:16px;margin-bottom:8px}
.step p{font-size:14px;color:var(--text-2)}

/* ============ FAQ ============ */
.faq{max-width:900px;display:flex;flex-direction:column;gap:14px}
.faq-item{
  border-radius:16px;overflow:hidden;
  background:var(--glass);
  border:1px solid var(--glass-line);
  border-left:3px solid rgba(125,211,252,.22);
  backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
  transition:border-color .25s ease,background .25s ease;
}
.faq-item[open]{border-left-color:var(--cyan);background:rgba(18,30,52,.78)}
.faq-item summary{
  list-style:none;cursor:pointer;
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  min-height:56px;padding:16px 20px;
  font-size:16px;font-weight:600;color:var(--text);
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{
  content:"+";flex:none;font-size:20px;font-weight:700;color:var(--cyan);
  transition:transform .25s ease;
}
.faq-item[open] summary::after{content:"−"}
.faq-body{padding:0 20px 20px;font-size:15px;line-height:1.85;color:var(--text-2)}

/* ============ CTA 条 ============ */
.cta-band{
  margin-top:88px;
  border-radius:24px;
  padding:40px 40px;
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:24px;
  background:
    radial-gradient(600px 240px at 88% 20%, rgba(124,92,255,.22), transparent 70%),
    linear-gradient(120deg, rgba(34,211,238,.14), rgba(255,176,32,.10)),
    var(--panel);
  border:1px solid rgba(34,211,238,.28);
  box-shadow:var(--shadow);
}
.cta-band h2{font-size:clamp(1.4rem,2.2vw,1.9rem);margin-bottom:10px}
.cta-band p{color:var(--text-2);font-size:15px;max-width:620px}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px}

/* ============ 页脚 ============ */
.footer{
  margin-top:96px;
  border-top:1px solid var(--glass-line);
  background:#080E1A;
}
.footer .wrap{padding-top:56px;padding-bottom:24px}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:32px}
.footer-brand p{color:var(--text-2);font-size:14px;margin-top:16px;max-width:340px;line-height:1.8}
.footer h4{font-size:14px;letter-spacing:.04em;margin-bottom:14px;color:var(--text)}
.footer ul li{line-height:2.1}
.footer ul li a{font-size:14px;color:var(--text-2)}
.footer ul li a:hover{color:var(--cyan)}
.footer-contact p{font-size:13.5px;color:var(--text-2);line-height:1.9}
.footer-bottom{
  margin-top:40px;padding-top:20px;
  border-top:1px solid rgba(125,211,252,.12);
  display:flex;flex-wrap:wrap;justify-content:space-between;gap:12px;
  font-size:13px;color:var(--text-3);
}

/* ============ 移动端吸底 ============ */
.mobile-cta{
  display:none;
  position:fixed;left:0;right:0;bottom:0;z-index:50;
  gap:12px;padding:12px 16px calc(12px + env(safe-area-inset-bottom));
  background:rgba(7,12,22,.94);
  border-top:1px solid var(--glass-line);
  backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
}
.mobile-cta .btn{flex:1;padding:0 12px;font-size:14.5px}

/* ============ 断点 ============ */
@media (max-width:1279px){
  :root{--sidebar-w:208px}
  .hero-inner{padding:44px 32px 36px;gap:28px}
  .notes{grid-template-columns:1fr 1fr}
  .note-card:first-child{grid-column:1 / -1}
  .order-steps{grid-template-columns:repeat(2,1fr)}
}
@media (max-width:1023px){
  .content{margin-left:0}
  .sidebar{width:280px;transform:translateX(-100%);transition:transform .3s ease}
  .sidebar.open{transform:translateX(0);box-shadow:24px 0 60px rgba(0,0,0,.6)}
  .mask{display:block}
  .hero-inner{grid-template-columns:1fr;padding:38px 26px 32px}
  .hero-panel{align-self:stretch}
  .scene-grid{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px}
  .cta-band{padding:32px 26px;margin-top:64px}
  .section{padding-top:64px}
  .footer{margin-top:72px}
}
@media (max-width:767px){
  body{padding-bottom:78px}
  .wrap{padding:0 16px}
  .topbar{padding:10px 16px}
  .topbar-cta{display:none}
  .mobile-cta{display:flex}
  .hero{border-radius:18px;margin-top:14px}
  .hero-inner{padding:30px 20px 26px}
  .hero-sub{font-size:15.5px}
  .hero-actions{gap:10px;margin:22px 0 24px}
  .hero-actions .btn{flex:1;padding:0 14px}
  .hero-stats{gap:20px}
  .hero-stats strong{font-size:20px}
  .section{padding-top:52px}
  .section-head{margin-bottom:22px}
  .matrix-grid{min-width:760px}
  .m-cell{padding:14px;font-size:13.5px}
  .matrix-grid{grid-template-columns:150px repeat(3,minmax(180px,1fr))}
  .scroll-hint{display:block}
  .notes{grid-template-columns:1fr}
  .note-card:first-child{grid-column:auto}
  .order-steps{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr;gap:24px}
  .footer{margin-top:56px}
  .footer .wrap{padding-top:40px}
  .footer-bottom{flex-direction:column;gap:8px}
  .cta-band{padding:26px 20px;border-radius:18px}
  .cta-actions{width:100%}
  .cta-actions .btn{flex:1}
}
@media (max-width:479px){
  .hero-stats{gap:16px}
  .hero-stats li{min-width:86px}
  .breadcrumb{font-size:12.5px}
  .cta-actions{flex-direction:column}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation-duration:.001ms !important;transition-duration:.001ms !important;scroll-behavior:auto !important}
}

/* roulang page: category4 */
:root{
  --bg:#070C16;
  --bg-2:#0A1120;
  --surface:#101A2B;
  --surface-2:#141F33;
  --glass:rgba(18,30,52,.62);
  --line:rgba(125,211,252,.18);
  --line-soft:rgba(125,211,252,.10);
  --text:#E8F1FF;
  --sub:#A9B8D0;
  --weak:#6F809B;
  --cyan:#22D3EE;
  --purple:#7C5CFF;
  --amber:#FFB020;
  --link:#7DD3FC;
  --link-visited:#A78BFA;
  --ok:#34D399;
  --warn:#F59E0B;
  --err:#F87171;
  --r-card:18px;
  --r-img:14px;
  --shadow:0 10px 40px rgba(0,0,0,.45), inset 0 1px rgba(255,255,255,.06);
  --glow:0 0 0 1px rgba(34,211,238,.35), 0 0 28px rgba(34,211,238,.28);
  --maxw:1280px;
  --sidebar:232px;
  --gap:24px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  padding-left:var(--sidebar);
  font-family:"Noto Sans SC","PingFang SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:16.5px;
  line-height:1.75;
  color:var(--text);
  background-color:var(--bg);
  background-image:
    radial-gradient(circle at 12% 14%, rgba(34,211,238,.10), transparent 44%),
    radial-gradient(circle at 88% 6%, rgba(124,92,255,.12), transparent 46%),
    radial-gradient(rgba(125,211,252,.10) 1px, transparent 1px);
  background-size:auto,auto,34px 34px;
  background-attachment:fixed;
  overflow-x:hidden;
}
img{max-width:100%;display:block;height:auto}
a{color:var(--link);text-decoration:none}
a:hover{text-decoration:underline;text-underline-offset:3px}
a:visited{color:var(--link-visited)}
a:focus-visible,button:focus-visible,summary:focus-visible{outline:2px solid var(--cyan);outline-offset:2px;border-radius:8px}
button{font:inherit;color:inherit;background:none;border:0}
h1,h2,h3,h4{margin:0;line-height:1.28;font-weight:700;letter-spacing:.2px}
p{margin:0}
ul{margin:0;padding:0;list-style:none}
::selection{background:rgba(34,211,238,.32);color:#fff}
.wrap{max-width:var(--maxw);margin:0 auto;padding:0 32px;width:100%}
.num{font-variant-numeric:tabular-nums}

/* ============ 侧栏导航 ============ */
.sidebar{
  position:fixed;top:0;left:0;bottom:0;width:var(--sidebar);
  padding:22px 16px 20px;display:flex;flex-direction:column;gap:22px;
  background:linear-gradient(180deg,rgba(16,26,43,.94),rgba(8,13,24,.96));
  border-right:1px solid var(--line);
  backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
  z-index:70;overflow-y:auto;
}
.brand{display:flex;align-items:center;gap:12px;text-decoration:none!important;color:var(--text)}
.brand:hover{text-decoration:none}
.brand-mark{display:grid;grid-template-columns:repeat(3,1fr);gap:3px;width:30px;height:30px;flex:none}
.brand-mark i{background:rgba(125,211,252,.28);border-radius:2px;display:block}
.brand-mark i:nth-child(1),.brand-mark i:nth-child(3),.brand-mark i:nth-child(7),.brand-mark i:nth-child(9){background:rgba(125,211,252,.14)}
.brand-mark i:nth-child(5){background:linear-gradient(135deg,var(--amber),var(--cyan));box-shadow:0 0 12px rgba(34,211,238,.6)}
.brand-text{display:flex;flex-direction:column;min-width:0}
.brand-name{font-size:15px;font-weight:800;letter-spacing:.4px;white-space:nowrap}
.brand-sub{font-size:11.5px;color:var(--weak);letter-spacing:1.4px}
.side-nav{display:flex;flex-direction:column;gap:6px}
.nav-label{font-size:11.5px;color:var(--weak);letter-spacing:2px;padding:0 6px 6px}
.nav-item{
  position:relative;display:flex;align-items:center;gap:10px;
  min-height:44px;padding:9px 12px;border-radius:12px;
  color:var(--sub);font-size:14.5px;font-weight:500;
  text-decoration:none!important;transition:background .2s,color .2s;
}
.nav-item:hover{background:rgba(125,211,252,.08);color:var(--text)}
.nav-item:visited{color:var(--sub)}
.nav-item.is-active{color:#fff;background:rgba(34,211,238,.10)}
.nav-item.is-active::before{
  content:"";position:absolute;left:0;top:9px;bottom:9px;width:3px;border-radius:3px;
  background:linear-gradient(180deg,var(--cyan),var(--purple));
  box-shadow:0 0 12px rgba(34,211,238,.65);
}
.nav-ico{
  width:18px;height:18px;border-radius:5px;flex:none;
  border:1px solid rgba(125,211,252,.34);
  background:linear-gradient(140deg,rgba(125,211,252,.12),transparent);
}
.nav-item.is-active .nav-ico{background:rgba(34,211,238,.26);border-color:rgba(34,211,238,.7);box-shadow:0 0 12px rgba(34,211,238,.35)}
.side-foot{margin-top:auto;display:flex;flex-direction:column;gap:10px}
.side-note{font-size:12px;color:var(--weak);line-height:1.6}

/* ============ 顶部栏（移动端 / 平板） ============ */
.topbar{
  display:none;align-items:center;gap:14px;
  padding:12px 18px;position:sticky;top:0;z-index:60;
  background:rgba(9,14,25,.86);border-bottom:1px solid var(--line);
  backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
}
.menu-toggle{
  width:44px;height:44px;border-radius:12px;flex:none;
  border:1px solid var(--line);background:rgba(18,30,52,.6);
  display:grid;place-content:center;gap:4px;cursor:pointer;transition:.2s;
}
.menu-toggle span{display:block;width:18px;height:2px;border-radius:2px;background:var(--text);transition:.2s}
.menu-toggle:hover{border-color:rgba(34,211,238,.5);box-shadow:0 0 18px rgba(34,211,238,.2)}
.menu-toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(6px) rotate(45deg)}
.menu-toggle[aria-expanded="true"] span:nth-child(2){opacity:0}
.menu-toggle[aria-expanded="true"] span:nth-child(3){transform:translateY(-6px) rotate(-45deg)}
.topbar .brand{flex:1;min-width:0}
.topbar-cta{flex:none}
.scrim{
  position:fixed;inset:0;background:rgba(3,7,14,.62);z-index:65;
  opacity:0;visibility:hidden;transition:opacity .25s,visibility .25s;
}
.scrim.is-on{opacity:1;visibility:visible}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:44px;padding:0 22px;border-radius:999px;
  font-size:15px;font-weight:600;cursor:pointer;text-decoration:none!important;
  border:1px solid transparent;
  transition:transform .18s ease,box-shadow .25s ease,background .2s,border-color .2s,color .2s;
}
.btn:hover{text-decoration:none}
.btn-primary{
  background:linear-gradient(120deg,#FFB020,#FFD98A 42%,#22D3EE);
  color:#08111F;
  box-shadow:0 8px 26px rgba(255,176,32,.25);
}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 14px 34px rgba(255,176,32,.34)}
.btn-primary:active{transform:translateY(0);box-shadow:0 6px 18px rgba(255,176,32,.3)}
.btn-ghost{
  background:rgba(18,30,52,.62);border-color:rgba(125,211,252,.28);color:var(--text);
  backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);
}
.btn-ghost:hover{transform:translateY(-2px);border-color:rgba(34,211,238,.6);box-shadow:0 0 24px rgba(34,211,238,.22)}
.btn-ghost:active{transform:translateY(0)}
.btn-text{padding:0 4px;color:var(--link);font-weight:600}
.btn-text::after{content:"→";margin-left:6px;transition:transform .2s}
.btn-text:hover{text-decoration:underline;text-underline-offset:3px}
.btn-text:hover::after{transform:translateX(3px)}
.btn-sm{min-height:40px;padding:0 16px;font-size:13.5px}
:focus-visible{outline:2px solid var(--cyan);outline-offset:2px}

/* ============ 面包屑 / 小标题 ============ */
.crumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--weak)}
.crumb a{color:var(--sub);text-decoration:none}
.crumb a:hover{color:var(--cyan);text-decoration:underline;text-underline-offset:3px}
.crumb span{color:rgba(111,128,155,.6)}
.crumb em{font-style:normal;color:var(--cyan)}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12.5px;font-weight:600;letter-spacing:1.6px;color:var(--cyan);
  padding:6px 14px;border-radius:999px;
  border:1px solid rgba(34,211,238,.3);background:rgba(34,211,238,.07);
}
.eyebrow::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--amber);box-shadow:0 0 10px rgba(255,176,32,.8)}

/* ============ Hero ============ */
.hero-cat{position:relative;overflow:hidden;border-bottom:1px solid var(--line);min-height:360px;display:flex;align-items:center}
.hero-cat::before{
  content:"";position:absolute;inset:0;z-index:0;
  background-image:
    linear-gradient(100deg,rgba(7,12,22,.96) 0%,rgba(7,12,22,.82) 46%,rgba(7,12,22,.6) 100%),
    url('/assets/images/backpic/back-2.png');
  background-size:cover;background-position:center right;
}
.hero-cat::after{
  content:"";position:absolute;inset:0;z-index:0;pointer-events:none;
  background-image:
    linear-gradient(115deg,transparent 0 62%,rgba(34,211,238,.07) 62% 62.4%,transparent 62.4%),
    linear-gradient(115deg,transparent 0 72%,rgba(124,92,255,.09) 72% 72.4%,transparent 72.4%);
}
.hero-cat .wrap{position:relative;z-index:1;padding-top:44px;padding-bottom:46px}
.hero-inner{max-width:820px;display:flex;flex-direction:column;gap:18px}
.hero-cat h1{font-size:clamp(1.9rem,3.4vw,2.9rem);font-weight:800;letter-spacing:.5px}
.hero-lead{font-size:17px;color:var(--sub);max-width:640px}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:4px}
.hero-facts{display:flex;flex-wrap:wrap;gap:10px 26px;margin-top:10px;padding-top:16px;border-top:1px solid var(--line-soft)}
.hero-facts li{display:flex;align-items:center;gap:8px;font-size:13.5px;color:var(--sub)}
.hero-facts li::before{content:"";width:7px;height:7px;border-radius:2px;background:linear-gradient(135deg,var(--cyan),var(--purple));box-shadow:0 0 10px rgba(34,211,238,.55)}

/* ============ 通用板块 ============ */
.section{padding:76px 0}
.section.tight{padding:56px 0}
.sec-head{display:flex;flex-direction:column;gap:12px;max-width:760px;margin-bottom:34px}
.sec-head h2{font-size:clamp(1.5rem,2.5vw,2.15rem)}
.sec-head p{color:var(--sub);font-size:16px}
.sec-head .kicker{font-size:12.5px;letter-spacing:2px;color:var(--purple);font-weight:700}

/* ============ 准备清单条 ============ */
.prep{
  display:grid;grid-template-columns:repeat(3,1fr);gap:0;
  border:1px solid var(--line);border-radius:var(--r-card);
  background:var(--glass);backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
  box-shadow:var(--shadow);overflow:hidden;
}
.prep-item{padding:24px 26px;border-right:1px solid var(--line-soft)}
.prep-item:last-child{border-right:0}
.prep-item h3{font-size:16px;margin-bottom:8px;display:flex;align-items:center;gap:8px}
.prep-item h3 .dot{width:8px;height:8px;border-radius:2px;background:var(--amber);box-shadow:0 0 10px rgba(255,176,32,.7)}
.prep-item p{font-size:14.5px;color:var(--sub);line-height:1.75}

/* ============ 时间线 ============ */
.timeline{position:relative;display:flex;flex-direction:column;gap:26px}
.timeline::before{
  content:"";position:absolute;left:27px;top:16px;bottom:16px;width:2px;
  background:linear-gradient(180deg,rgba(34,211,238,.7),rgba(124,92,255,.4),rgba(124,92,255,0));
}
.step{position:relative;display:grid;grid-template-columns:56px minmax(0,1fr);gap:18px}
.step-no{
  width:56px;height:56px;border-radius:16px;display:grid;place-items:center;
  font-weight:800;font-size:17px;letter-spacing:.5px;
  background:linear-gradient(160deg,var(--surface-2),var(--surface));
  border:1px solid var(--line);box-shadow:var(--shadow);z-index:1;
  color:var(--cyan);
}
.step-card{
  display:grid;grid-template-columns:minmax(0,1.12fr) minmax(0,.88fr);gap:22px;align-items:center;
  padding:22px;border-radius:var(--r-card);
  background:linear-gradient(180deg,rgba(16,26,43,.96),rgba(11,19,32,.96));
  border:1px solid rgba(125,211,252,.14);box-shadow:var(--shadow);
  transition:transform .2s,border-color .2s,box-shadow .25s;
}
.step-card:hover{transform:translateY(-2px);border-color:rgba(34,211,238,.42);box-shadow:0 14px 44px rgba(0,0,0,.5),0 0 22px rgba(34,211,238,.14)}
.step.is-alt .step-card{grid-template-columns:minmax(0,.88fr) minmax(0,1.12fr)}
.step.is-alt .step-media{order:-1}
.step-body{display:flex;flex-direction:column;gap:10px}
.step-tag{
  display:inline-flex;align-items:center;gap:6px;align-self:flex-start;
  font-size:12px;color:var(--cyan);padding:4px 10px;border-radius:8px;
  border:1px solid rgba(34,211,238,.28);background:rgba(34,211,238,.08);
}
.step-body h3{font-size:18.5px}
.step-body p{font-size:15px;color:var(--sub);line-height:1.8}
.step-meta{display:flex;flex-wrap:wrap;gap:8px 18px;font-size:13px;color:var(--weak);margin-top:2px}
.step-meta b{color:var(--text);font-weight:600}
.step-media{position:relative;border-radius:var(--r-img);overflow:hidden;background:var(--surface-2);aspect-ratio:16/10}
.step-media img{width:100%;height:100%;object-fit:cover;transition:transform .5s ease}
.step-card:hover .step-media img{transform:scale(1.04)}
.step-media::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,transparent 45%,rgba(7,12,22,.55));pointer-events:none}

/* ============ 上手节奏 ============ */
.pace{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px}
.pace-card{
  padding:24px;border-radius:var(--r-card);
  background:var(--surface);border:1px solid var(--line-soft);box-shadow:var(--shadow);
  display:flex;flex-direction:column;gap:12px;transition:transform .2s,border-color .2s;
}
.pace-card:hover{transform:translateY(-3px);border-color:rgba(124,92,255,.45)}
.pace-top{display:flex;align-items:baseline;justify-content:space-between;gap:10px}
.pace-top h3{font-size:16.5px}
.pace-top em{font-style:normal;font-size:13px;color:var(--amber);font-weight:700}
.pace-card p{font-size:14.5px;color:var(--sub)}
.bar{height:8px;border-radius:999px;background:rgba(125,211,252,.12);overflow:hidden}
.bar i{display:block;height:100%;border-radius:999px;background:linear-gradient(90deg,var(--cyan),var(--purple))}
.pace-num{font-size:26px;font-weight:800;font-variant-numeric:tabular-nums;color:#fff}
.pace-num small{font-size:13px;color:var(--weak);font-weight:500;margin-left:4px}

/* ============ 卡点排查 ============ */
.check-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:18px}
.check{
  position:relative;padding:20px 22px 20px 26px;border-radius:14px;
  background:linear-gradient(180deg,rgba(18,30,52,.72),rgba(13,21,36,.72));
  border:1px solid var(--line-soft);
  transition:border-color .2s,transform .2s;
}
.check::before{content:"";position:absolute;left:0;top:18px;bottom:18px;width:3px;border-radius:3px;background:linear-gradient(180deg,var(--amber),rgba(255,176,32,.15))}
.check:hover{border-color:rgba(255,176,32,.4);transform:translateY(-2px)}
.check h3{font-size:16px;margin-bottom:8px;display:flex;gap:8px;align-items:center}
.check h3 span{font-size:12px;color:var(--warn);border:1px solid rgba(245,158,11,.45);border-radius:8px;padding:2px 8px;font-weight:500}
.check p{font-size:14.5px;color:var(--sub);line-height:1.8}

/* ============ FAQ ============ */
.faq{max-width:900px;margin:0 auto;display:flex;flex-direction:column;gap:12px}
.faq details{
  background:var(--glass);border:1px solid var(--line);border-radius:14px;
  backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
  transition:border-color .2s,box-shadow .25s;overflow:hidden;
}
.faq details:hover{border-color:rgba(34,211,238,.4)}
.faq details[open]{border-color:rgba(34,211,238,.5);box-shadow:inset 3px 0 0 rgba(34,211,238,.75),0 8px 30px rgba(0,0,0,.35)}
.faq summary{
  list-style:none;cursor:pointer;position:relative;
  padding:18px 54px 18px 22px;font-size:16px;font-weight:600;min-height:44px;
  display:flex;align-items:center;
}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{
  content:"+";position:absolute;right:20px;top:50%;transform:translateY(-50%);
  font-size:22px;line-height:1;color:var(--cyan);transition:transform .2s;
}
.faq details[open] summary::after{content:"–";transform:translateY(-50%) rotate(180deg)}
.faq-a{padding:0 22px 20px;color:var(--sub);font-size:15px;line-height:1.8;border-top:1px solid var(--line-soft);padding-top:14px;margin:0 22px 0 22px;padding-left:0;padding-right:0}

/* ============ 底部 CTA ============ */
.cta-band{
  position:relative;overflow:hidden;border-radius:22px;
  padding:38px 40px;border:1px solid rgba(34,211,238,.28);
  background:
    radial-gradient(circle at 88% 12%, rgba(124,92,255,.22), transparent 52%),
    linear-gradient(130deg,rgba(16,26,43,.96),rgba(9,15,26,.96));
  box-shadow:var(--shadow);
  display:grid;grid-template-columns:minmax(0,1.4fr) minmax(0,1fr);gap:26px;align-items:center;
}
.cta-band h2{font-size:clamp(1.4rem,2.2vw,1.9rem);margin-bottom:10px}
.cta-band p{color:var(--sub);font-size:15.5px;max-width:560px}
.cta-links{display:flex;flex-wrap:wrap;gap:12px;justify-content:flex-end}
.back-row{display:flex;flex-wrap:wrap;gap:12px 22px;align-items:center;margin-top:20px;font-size:14px;color:var(--weak)}
.back-row a{color:var(--sub)}
.back-row a:hover{color:var(--cyan)}

/* ============ 页脚 ============ */
.footer{
  margin-top:20px;border-top:1px solid var(--line);
  background:linear-gradient(180deg,rgba(10,17,32,.9),rgba(6,10,19,.98));
}
.footer .wrap{padding-top:52px;padding-bottom:26px}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:32px}
.footer-brand p{margin-top:14px;font-size:14px;color:var(--sub);line-height:1.8;max-width:340px}
.footer h4{font-size:14.5px;margin-bottom:14px;color:var(--text)}
.footer ul{display:flex;flex-direction:column;gap:10px}
.footer ul a{font-size:14px;color:var(--sub);text-decoration:none}
.footer ul a:hover{color:var(--cyan);text-decoration:underline;text-underline-offset:3px}
.footer p{font-size:14px;color:var(--sub);line-height:1.8}
.footer-brand .brand{color:var(--text)}
.footer-bottom{
  display:flex;flex-wrap:wrap;gap:8px 24px;justify-content:space-between;
  margin-top:38px;padding-top:18px;border-top:1px solid var(--line-soft);
  font-size:13px;color:var(--weak);
}

/* ============ 响应式 ============ */
@media (max-width:1279px){
  :root{--sidebar:208px}
  .wrap{padding:0 24px}
  .section{padding:64px 0}
  .footer-grid{grid-template-columns:1.4fr 1fr 1fr;gap:26px}
}
@media (max-width:1023px){
  body{padding-left:0}
  .sidebar{
    width:min(84vw,306px);transform:translateX(-102%);
    transition:transform .28s ease;z-index:80;
    box-shadow:0 20px 60px rgba(0,0,0,.6);
  }
  .sidebar.is-open{transform:none}
  .topbar{display:flex}
  .hero-cat{min-height:0}
  .hero-cat .wrap{padding-top:34px;padding-bottom:34px}
  .prep{grid-template-columns:1fr}
  .prep-item{border-right:0;border-bottom:1px solid var(--line-soft)}
  .prep-item:last-child{border-bottom:0}
  .pace{grid-template-columns:repeat(2,minmax(0,1fr))}
  .cta-band{grid-template-columns:1fr;padding:30px 26px}
  .cta-links{justify-content:flex-start}
  .footer-grid{grid-template-columns:1fr 1fr}
}
@media (max-width:767px){
  body{font-size:16px}
  .wrap{padding:0 18px}
  .section{padding:48px 0}
  .section.tight{padding:36px 0}
  .topbar{padding:10px 14px;gap:10px}
  .topbar .brand-sub{display:none}
  .topbar-cta{min-height:40px;padding:0 16px;font-size:13.5px}
  .hero-cat h1{font-size:1.7rem}
  .hero-lead{font-size:15.5px}
  .step{grid-template-columns:44px minmax(0,1fr);gap:14px}
  .step-no{width:44px;height:44px;border-radius:13px;font-size:15px}
  .timeline::before{left:21px}
  .step-card,.step.is-alt .step-card{grid-template-columns:1fr;padding:18px}
  .step.is-alt .step-media{order:0}
  .pace{grid-template-columns:1fr}
  .check-grid{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr;gap:24px}
  .footer-bottom{flex-direction:column;gap:6px}
  .faq summary{font-size:15px;padding:16px 48px 16px 18px}
}
@media (max-width:479px){
  .wrap{padding:0 16px}
  .hero-actions .btn{width:100%}
  .hero-facts{gap:8px 16px}
  .btn{font-size:14.5px}
}
@media (prefers-reduced-motion:reduce){
  *{animation:none!important;transition:none!important;scroll-behavior:auto!important}
}