/* roulang page: index */
:root{
  --bg-0:#060A16;
  --bg-1:#0B1224;
  --surface:rgba(16,26,48,.72);
  --surface-2:rgba(20,32,58,.82);
  --line:rgba(120,170,255,.16);
  --line-strong:rgba(120,190,255,.38);
  --primary:#2F7DFF;
  --secondary:#22D3EE;
  --accent:#FFB020;
  --success:#34D399;
  --text-0:#F4F8FF;
  --text-1:#B7C4D8;
  --text-2:#7C8CA6;
  --r-lg:24px;
  --r-md:20px;
  --r-sm:14px;
  --shadow-glow:0 10px 30px rgba(34,211,238,.25);
  --shadow-card:0 18px 44px rgba(3,8,22,.55);
}
*{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:110px}
body{
  margin:0;
  min-height:100%;
  background-color:var(--bg-0);
  background-image:
    radial-gradient(900px 520px at 10% -10%, rgba(47,125,255,.20), transparent 62%),
    radial-gradient(760px 460px at 94% 2%, rgba(34,211,238,.14), transparent 64%),
    linear-gradient(180deg,#060A16 0%,#080E1E 45%,#060A16 100%);
  background-attachment:fixed;
  color:var(--text-0);
  font-family:"Noto Sans SC","PingFang SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:17px;
  line-height:1.8;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
body::before{
  content:"";
  position:fixed;
  inset:0;
  pointer-events:none;
  z-index:0;
  background-image:
    linear-gradient(rgba(120,170,255,.045) 1px, transparent 1px),
    linear-gradient(90deg, rgba(120,170,255,.045) 1px, transparent 1px);
  background-size:64px 64px;
  mask-image:radial-gradient(circle at 50% 12%, rgba(0,0,0,.9), transparent 78%);
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
button{font-family:inherit}
h1,h2,h3,h4{line-height:1.2;margin:0;letter-spacing:-.01em}
p{margin:0}
ul{margin:0;padding:0;list-style:none}
.shell{width:100%;max-width:1240px;margin:0 auto;padding:0 24px;position:relative;z-index:2}
.section{padding:96px 0;position:relative}
.section--tight{padding:72px 0}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;letter-spacing:.16em;text-transform:uppercase;
  color:var(--secondary);font-weight:600;
  padding:7px 14px;border-radius:999px;
  border:1px solid var(--line);
  background:rgba(34,211,238,.07);
}
.section-title{font-size:clamp(1.75rem,3.5vw,2.75rem);font-weight:800;margin:18px 0 14px}
.section-sub{color:var(--text-1);max-width:720px;font-size:clamp(15px,1.6vw,17px)}
.muted{color:var(--text-2)}
.glass{
  background:linear-gradient(160deg, rgba(20,32,58,.82), rgba(10,16,32,.62));
  border:1px solid var(--line);
  border-radius:var(--r-lg);
  backdrop-filter:blur(18px);
  -webkit-backdrop-filter:blur(18px);
  box-shadow:var(--shadow-card), inset 0 1px 0 rgba(255,255,255,.06);
}
.card{
  background:linear-gradient(160deg, rgba(20,32,58,.78), rgba(10,16,32,.58));
  border:1px solid var(--line);
  border-radius:var(--r-md);
  padding:28px;
  transition:transform .28s ease, border-color .28s ease, box-shadow .28s ease;
}
.card:hover{transform:translateY(-4px);border-color:var(--line-strong);box-shadow:0 22px 48px rgba(6,16,40,.6)}
.card h3{font-size:1.28rem;font-weight:700;margin-bottom:10px}
.card p{color:var(--text-1);font-size:15.5px}
.icon-chip{
  width:48px;height:48px;border-radius:16px;display:flex;align-items:center;justify-content:center;
  background:linear-gradient(140deg, rgba(47,125,255,.22), rgba(34,211,238,.14));
  border:1px solid rgba(120,190,255,.28);
  color:var(--secondary);font-size:20px;margin-bottom:18px;
}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:13px 26px;border-radius:999px;font-weight:600;font-size:15.5px;
  border:1px solid transparent;cursor:pointer;transition:all .25s ease;white-space:nowrap;
}
.btn-primary{
  background:linear-gradient(100deg,#2563EB,#22D3EE);
  color:#04121F;
  box-shadow:0 0 0 1px rgba(34,211,238,.45), var(--shadow-glow);
}
.btn-primary:hover{transform:translateY(-2px);filter:brightness(1.08);box-shadow:0 0 0 1px rgba(34,211,238,.6), 0 16px 40px rgba(34,211,238,.34)}
.btn-primary:active{transform:translateY(1px)}
.btn-ghost{
  background:rgba(255,255,255,.04);
  border-color:var(--line);color:var(--text-0);
  backdrop-filter:blur(10px);
}
.btn-ghost:hover{background:rgba(255,255,255,.09);border-color:var(--line-strong);transform:translateY(-2px)}
.btn:focus-visible,a:focus-visible,button:focus-visible,summary:focus-visible,input:focus-visible,textarea:focus-visible{
  outline:2px solid var(--secondary);outline-offset:3px;
}
.badge{
  display:inline-flex;align-items:center;
  padding:4px 12px;border-radius:999px;font-size:12.5px;font-weight:600;
  color:var(--secondary);background:rgba(34,211,238,.10);
  border:1px solid rgba(34,211,238,.26);
}
.badge--amber{color:var(--accent);background:rgba(255,176,32,.10);border-color:rgba(255,176,32,.28)}
.badge--green{color:var(--success);background:rgba(52,211,153,.10);border-color:rgba(52,211,153,.28)}

/* 导航 */
.nav-wrap{position:fixed;top:14px;left:0;right:0;z-index:80;transition:top .3s ease}
.pill-nav{
  display:flex;align-items:center;gap:16px;
  padding:10px 12px 10px 20px;border-radius:999px;
  background:rgba(8,14,28,.55);
  border:1px solid var(--line);
  backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px);
  transition:background .3s ease, border-color .3s ease, box-shadow .3s ease;
}
.nav-wrap.is-scrolled .pill-nav{
  background:rgba(8,14,28,.86);
  border-color:var(--line-strong);
  box-shadow:0 16px 40px rgba(3,8,22,.7);
}
.brand{display:flex;align-items:center;gap:10px;font-weight:800;font-size:16.5px;letter-spacing:.01em;flex-shrink:0}
.brand-mark{
  width:34px;height:34px;border-radius:12px;flex-shrink:0;
  background:linear-gradient(140deg,#2563EB,#22D3EE);
  display:flex;align-items:center;justify-content:center;
  color:#04121F;font-size:16px;font-weight:900;
  box-shadow:0 6px 18px rgba(34,211,238,.35);
}
.nav-links{display:flex;align-items:center;gap:4px;margin-left:auto}
.nav-links a{
  padding:9px 16px;border-radius:999px;font-size:15px;color:var(--text-1);
  transition:all .22s ease;white-space:nowrap;
}
.nav-links a:hover{color:var(--text-0);background:rgba(120,170,255,.10)}
.nav-links a.is-active{color:#04121F;background:linear-gradient(100deg,#2F7DFF,#22D3EE);font-weight:600}
.nav-cta{padding:11px 22px;font-size:15px}
.nav-toggle{
  display:none;margin-left:auto;width:42px;height:42px;border-radius:14px;
  background:rgba(255,255,255,.05);border:1px solid var(--line);color:var(--text-0);
  align-items:center;justify-content:center;
}
.drawer{
  display:none;
  margin-top:10px;padding:14px;border-radius:22px;
  background:rgba(8,14,28,.94);border:1px solid var(--line-strong);
  backdrop-filter:blur(18px);
}
.drawer.is-open{display:block}
.drawer a{display:block;padding:12px 16px;border-radius:14px;color:var(--text-1);font-size:15.5px}
.drawer a:hover{background:rgba(120,170,255,.10);color:var(--text-0)}
.drawer a.is-active{color:#04121F;background:linear-gradient(100deg,#2F7DFF,#22D3EE);font-weight:600}
.drawer .btn{width:100%;margin-top:12px}

/* Hero */
.hero{
  position:relative;min-height:88vh;display:flex;align-items:center;
  padding:150px 0 90px;overflow:hidden;
}
.hero-bg{
  position:absolute;inset:0;z-index:0;
  background-image:url('/assets/images/backpic/back-1.webp');
  background-size:cover;background-position:center;
  opacity:.42;
}
.hero-veil{
  position:absolute;inset:0;z-index:1;
  background:
    radial-gradient(760px 460px at 18% 30%, rgba(47,125,255,.28), transparent 66%),
    linear-gradient(180deg, rgba(6,10,22,.72) 0%, rgba(6,10,22,.86) 55%, rgba(6,10,22,.98) 100%);
}
.hero-inner{position:relative;z-index:3;display:grid;grid-template-columns:1.08fr .92fr;gap:56px;align-items:center}
.hero h1{
  font-size:clamp(2.4rem,5.4vw,4.1rem);
  font-weight:900;line-height:1.16;margin:22px 0 20px;
  background:linear-gradient(102deg,#F4F8FF 18%,#8FD7FF 58%,#22D3EE 96%);
  -webkit-background-clip:text;background-clip:text;color:transparent;
}
.hero-sub{font-size:clamp(16px,1.8vw,19px);color:var(--text-1);max-width:610px}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:34px}
.hero-points{display:flex;flex-wrap:wrap;gap:22px;margin-top:34px;color:var(--text-2);font-size:14.5px}
.hero-points li{display:flex;align-items:center;gap:8px}
.dot{width:7px;height:7px;border-radius:50%;background:var(--secondary);box-shadow:0 0 10px rgba(34,211,238,.9)}
.panel{padding:26px}
.panel-row{
  display:flex;align-items:center;justify-content:space-between;gap:12px;
  padding:14px 16px;border-radius:var(--r-sm);
  background:rgba(9,16,34,.6);border:1px solid var(--line);
}
.panel-row + .panel-row{margin-top:10px}
.panel-row .k{font-size:14.5px;color:var(--text-1)}
.panel-row .v{font-size:15px;font-weight:700;color:var(--secondary)}
.panel-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:16px}
.panel-head strong{font-size:16px}
.mini-bars{display:flex;align-items:flex-end;gap:8px;height:88px;margin-top:20px}
.mini-bars span{
  flex:1;border-radius:8px 8px 4px 4px;
  background:linear-gradient(180deg, rgba(34,211,238,.85), rgba(47,125,255,.25));
}
.scroll-hint{
  position:absolute;left:50%;bottom:26px;transform:translateX(-50%);
  z-index:3;display:flex;flex-direction:column;align-items:center;gap:8px;
  color:var(--text-2);font-size:12.5px;letter-spacing:.14em;
}
.scroll-hint i{
  width:2px;height:38px;border-radius:2px;
  background:linear-gradient(180deg, rgba(34,211,238,.9), transparent);
  animation:hint 2.2s ease-in-out infinite;
}
@keyframes hint{0%,100%{opacity:.35}50%{opacity:1}}

/* 卖点 Bento */
.bento{display:grid;grid-template-columns:repeat(12,1fr);gap:20px;margin-top:44px}
.bento .b1{grid-column:span 7}
.bento .b2{grid-column:span 5}
.bento .b3{grid-column:span 4}
.bento .b4{grid-column:span 4}
.bento .b5{grid-column:span 4}
.bento .media{
  border-radius:var(--r-md);overflow:hidden;border:1px solid var(--line);
  position:relative;min-height:200px;
}
.bento .media img{width:100%;height:100%;object-fit:cover;min-height:200px}
.bento .media::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg, rgba(6,10,22,.08), rgba(6,10,22,.72));
}

/* 演示 */
.tabs{display:flex;flex-wrap:wrap;gap:10px;margin:34px 0 26px}
.tab{
  padding:10px 20px;border-radius:999px;font-size:15px;cursor:pointer;
  background:rgba(255,255,255,.04);border:1px solid var(--line);color:var(--text-1);
  transition:all .24s ease;
}
.tab:hover{color:var(--text-0);border-color:var(--line-strong)}
.tab.is-active{background:linear-gradient(100deg,#2F7DFF,#22D3EE);color:#04121F;font-weight:600;border-color:transparent}
.stage{padding:20px;border-radius:var(--r-lg)}
.stage-view{display:none}
.stage-view.is-active{display:block}
.stage-frame{
  border-radius:18px;overflow:hidden;border:1px solid var(--line-strong);
  box-shadow:0 0 0 1px rgba(34,211,238,.12), 0 24px 60px rgba(3,8,22,.6);
  background:rgba(9,16,34,.7);
}
.stage-frame img{width:100%;aspect-ratio:16/9;object-fit:cover}
.stage-note{padding:18px 6px 4px;color:var(--text-1);font-size:15px}

/* 证据 */
.stats{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;margin-top:44px}
.stat{padding:26px 24px;text-align:left}
.stat .num{
  font-size:clamp(1.9rem,3vw,2.5rem);font-weight:900;
  background:linear-gradient(100deg,#F4F8FF,#22D3EE);
  -webkit-background-clip:text;background-clip:text;color:transparent;
}
.stat .lab{color:var(--text-1);font-size:14.5px;margin-top:6px}
.voices{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;margin-top:26px}
.voice{padding:26px}
.voice p{color:var(--text-1);font-size:15.5px}
.voice-who{display:flex;align-items:center;gap:12px;margin-top:18px}
.voice-who img{width:44px;height:44px;border-radius:50%;object-fit:cover;border:1px solid var(--line-strong)}
.voice-who span{font-size:14.5px;color:var(--text-2)}
.timeline{margin-top:30px;border-left:1px solid var(--line);padding-left:26px}
.timeline li{position:relative;padding-bottom:22px}
.timeline li::before{
  content:"";position:absolute;left:-31px;top:9px;width:9px;height:9px;border-radius:50%;
  background:var(--secondary);box-shadow:0 0 12px rgba(34,211,238,.9);
}
.timeline strong{display:block;font-size:16.5px}
.timeline span{color:var(--text-2);font-size:14.5px}

/* 资讯列表 */
.news-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:22px;margin-top:44px}
.news-card{
  display:flex;gap:18px;padding:18px;border-radius:var(--r-md);
  background:linear-gradient(160deg, rgba(20,32,58,.78), rgba(10,16,32,.58));
  border:1px solid var(--line);
  transition:transform .28s ease, border-color .28s ease, box-shadow .28s ease;
}
.news-card:hover{transform:translateY(-4px);border-color:var(--line-strong);box-shadow:0 22px 48px rgba(6,16,40,.6)}
.news-thumb{flex:0 0 148px;border-radius:16px;overflow:hidden;background:rgba(9,16,34,.7)}
.news-thumb img{width:148px;height:112px;object-fit:cover}
.news-body{min-width:0;display:flex;flex-direction:column;gap:8px}
.news-title{font-size:17px;font-weight:700;line-height:1.45}
.news-title a:hover{color:var(--secondary)}
.news-desc{color:var(--text-1);font-size:14.5px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.news-meta{color:var(--text-2);font-size:13.5px;margin-top:auto}
.empty-state{
  margin-top:40px;padding:52px 28px;text-align:center;border-radius:var(--r-lg);
  background:linear-gradient(160deg, rgba(20,32,58,.7), rgba(10,16,32,.5));
  border:1px dashed var(--line-strong);
}
.empty-state .ring{
  width:62px;height:62px;margin:0 auto 18px;border-radius:50%;
  display:flex;align-items:center;justify-content:center;
  background:rgba(34,211,238,.10);border:1px solid rgba(34,211,238,.28);
  color:var(--secondary);font-size:24px;
}
.empty-state p{color:var(--text-1);margin-top:8px}

/* 价格 */
.price-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px;margin-top:46px;align-items:stretch}
.price-card{padding:32px 28px;display:flex;flex-direction:column;position:relative}
.price-card.featured{
  border-color:rgba(34,211,238,.5);
  box-shadow:0 0 0 1px rgba(34,211,238,.28), 0 26px 60px rgba(34,211,238,.16);
}
.price-card .tag{
  position:absolute;top:-13px;left:28px;
  padding:5px 14px;border-radius:999px;font-size:12.5px;font-weight:700;color:#04121F;
  background:linear-gradient(100deg,#2F7DFF,#22D3EE);
}
.price-card h3{font-size:1.2rem;font-weight:700}
.price-num{font-size:2.6rem;font-weight:900;margin:14px 0 4px}
.price-num small{font-size:15px;font-weight:600;color:var(--text-2);margin-left:6px}
.price-card .desc{color:var(--text-2);font-size:14.5px;margin-bottom:22px}
.price-card ul{display:flex;flex-direction:column;gap:12px;margin-bottom:28px;flex:1}
.price-card li{display:flex;gap:10px;color:var(--text-1);font-size:15px}
.price-card li b{color:var(--success);font-weight:700}

/* FAQ */
.faq-list{margin-top:44px;display:flex;flex-direction:column;gap:14px}
.faq-item{
  border-radius:var(--r-md);border:1px solid var(--line);
  background:linear-gradient(160deg, rgba(20,32,58,.78), rgba(10,16,32,.56));
  overflow:hidden;transition:border-color .26s ease, box-shadow .26s ease;
}
.faq-item[open]{border-color:rgba(34,211,238,.42);box-shadow:0 0 0 1px rgba(34,211,238,.16), 0 18px 44px rgba(6,16,40,.55)}
.faq-item summary{
  list-style:none;cursor:pointer;padding:22px 26px;display:flex;align-items:center;gap:16px;
  font-size:17px;font-weight:700;
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{
  content:"+";margin-left:auto;font-size:22px;color:var(--secondary);
  transition:transform .28s ease;line-height:1;
}
.faq-item[open] summary::after{content:"–";transform:rotate(180deg)}
.faq-body{padding:0 26px 24px 68px;color:var(--text-1);font-size:15.5px}
.faq-item[open] .faq-mark{opacity:1}
.faq-mark{
  position:absolute;left:0;top:0;bottom:0;width:3px;
  background:linear-gradient(180deg,#2F7DFF,#22D3EE);opacity:0;transition:opacity .26s ease;
}
.faq-inner{position:relative}

/* CTA + 表单 */
.cta-box{
  padding:52px;border-radius:28px;
  background:
    radial-gradient(600px 320px at 12% 0%, rgba(47,125,255,.28), transparent 66%),
    radial-gradient(520px 300px at 92% 100%, rgba(34,211,238,.22), transparent 66%),
    linear-gradient(160deg, rgba(20,32,58,.86), rgba(10,16,32,.66));
  border:1px solid var(--line-strong);
  box-shadow:var(--shadow-card);
  display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:center;
}
.cta-box h2{font-size:clamp(1.7rem,3.2vw,2.5rem);font-weight:800;margin-bottom:16px}
.cta-box p{color:var(--text-1)}
.form-grid{display:grid;gap:14px}
.field label{display:block;font-size:14px;color:var(--text-1);margin-bottom:7px}
.field input,.field textarea{
  width:100%;padding:13px 16px;border-radius:var(--r-sm);
  background:rgba(8,14,28,.72);border:1px solid var(--line);color:var(--text-0);
  font-size:15.5px;transition:border-color .22s ease, box-shadow .22s ease;
}
.field input::placeholder,.field textarea::placeholder{color:#5D6C86}
.field input:focus,.field textarea:focus{
  outline:none;border-color:rgba(34,211,238,.6);
  box-shadow:0 0 0 3px rgba(34,211,238,.16);
}
.check{display:flex;gap:10px;align-items:flex-start;font-size:13.8px;color:var(--text-2)}
.check input{width:auto;margin-top:5px}
.form-msg{font-size:14px;color:var(--success);min-height:22px}

/* 页脚 */
.site-footer{
  margin-top:40px;border-top:1px solid var(--line);
  background:linear-gradient(180deg, rgba(8,14,28,.4), rgba(4,7,16,.9));
  position:relative;
}
.site-footer::before{
  content:"";position:absolute;top:-1px;left:0;right:0;height:1px;
  background:linear-gradient(90deg, transparent, rgba(34,211,238,.7), transparent);
}
.foot-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:36px;padding:64px 0 30px}
.foot-grid h4{font-size:15px;margin-bottom:16px;color:var(--text-0)}
.foot-grid ul{display:flex;flex-direction:column;gap:11px}
.foot-grid a,.foot-grid li{color:var(--text-2);font-size:14.8px;transition:color .22s ease}
.foot-grid a:hover{color:var(--secondary)}
.foot-brand p{color:var(--text-2);font-size:14.8px;margin-top:14px;max-width:330px}
.foot-bottom{
  border-top:1px solid var(--line);padding:22px 0;
  display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;
  color:var(--text-2);font-size:13.8px;
}

/* 浮动 CTA */
.float-cta{
  position:fixed;right:26px;bottom:26px;z-index:70;
  padding:14px 24px;border-radius:999px;font-weight:700;font-size:15px;
  background:linear-gradient(100deg,#2563EB,#22D3EE);color:#04121F;
  box-shadow:0 0 0 1px rgba(34,211,238,.45), var(--shadow-glow);
  animation:pulse 3.6s ease-in-out infinite;
}
.float-cta:hover{transform:translateY(-2px);filter:brightness(1.08)}
@keyframes pulse{0%,100%{box-shadow:0 0 0 1px rgba(34,211,238,.45), 0 10px 26px rgba(34,211,238,.2)}50%{box-shadow:0 0 0 1px rgba(34,211,238,.6), 0 14px 36px rgba(34,211,238,.34)}}

.reveal{opacity:0;transform:translateY(22px);transition:opacity .7s ease, transform .7s ease}
.reveal.is-in{opacity:1;transform:none}

@media (max-width:1024px){
  .nav-links{display:none}
  .nav-cta{display:none}
  .nav-toggle{display:flex}
  .hero-inner{grid-template-columns:1fr;gap:38px}
  .hero{padding-top:130px;min-height:auto}
  .bento .b1,.bento .b2,.bento .b3,.bento .b4,.bento .b5{grid-column:span 12}
  .stats{grid-template-columns:repeat(2,1fr)}
  .voices{grid-template-columns:1fr}
  .price-grid{grid-template-columns:1fr}
  .cta-box{grid-template-columns:1fr;padding:38px}
  .foot-grid{grid-template-columns:1fr 1fr;gap:30px}
}
@media (max-width:760px){
  body{font-size:16px}
  .shell{padding:0 16px}
  .section{padding:64px 0}
  .news-grid{grid-template-columns:1fr}
  .news-card{flex-direction:column}
  .news-thumb,.news-thumb img{width:100%;flex:none}
  .news-thumb img{height:180px}
  .faq-body{padding:0 20px 22px 20px}
  .faq-item summary{padding:18px 20px;font-size:16px}
  .stats{grid-template-columns:1fr}
  .float-cta{
    left:16px;right:16px;bottom:14px;text-align:center;
    padding:14px 18px;border-radius:16px;
  }
  .scroll-hint{display:none}
}
@media (max-width:520px){
  .hero h1{font-size:clamp(2rem,9vw,2.6rem)}
  .cta-box{padding:26px 20px}
  .card{padding:22px}
  .foot-grid{grid-template-columns:1fr}
}

/* roulang page: article */
:root{
  --bg-0:#060A16;
  --bg-1:#0B1224;
  --surface:rgba(16,26,48,.72);
  --line:rgba(120,170,255,.16);
  --line-strong:rgba(34,211,238,.32);
  --primary:#2F7DFF;
  --secondary:#22D3EE;
  --accent:#FFB020;
  --success:#34D399;
  --text-0:#F4F8FF;
  --text-1:#B7C4D8;
  --text-2:#7C8CA6;
  --radius-lg:26px;
  --radius-md:20px;
  --radius-sm:14px;
  --shadow-card:0 20px 52px rgba(4,10,26,.55);
  --shadow-soft:0 14px 34px rgba(34,211,238,.24);
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  font-family:"Noto Sans SC","PingFang SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  background:var(--bg-0);
  color:var(--text-1);
  font-size:17px;
  line-height:1.8;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
button{font:inherit;color:inherit;background:none;border:none;cursor:pointer}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4,p{margin:0}
.bg-layer{
  position:fixed;inset:0;z-index:-1;pointer-events:none;
  background:
    radial-gradient(920px 520px at 10% -12%,rgba(47,125,255,.22),transparent 62%),
    radial-gradient(700px 440px at 92% 4%,rgba(34,211,238,.15),transparent 64%),
    radial-gradient(760px 560px at 50% 118%,rgba(47,125,255,.12),transparent 66%),
    linear-gradient(180deg,#060A16 0%,#070D1C 42%,#060A16 100%);
}
.bg-layer::after{
  content:"";position:absolute;inset:0;opacity:.5;
  background-image:linear-gradient(rgba(120,170,255,.055) 1px,transparent 1px),
                   linear-gradient(90deg,rgba(120,170,255,.055) 1px,transparent 1px);
  background-size:64px 64px;
  mask-image:radial-gradient(circle at 50% 22%,#000 0%,transparent 78%);
  -webkit-mask-image:radial-gradient(circle at 50% 22%,#000 0%,transparent 78%);
}
.shell{width:100%;max-width:1240px;margin:0 auto;padding:0 24px}

/* ---------- 导航 ---------- */
.nav-wrap{position:fixed;top:0;left:0;right:0;z-index:80;padding:16px 0;transition:padding .3s ease}
.nav-wrap.is-scrolled{padding:9px 0}
.pill-nav{
  display:flex;align-items:center;gap:16px;
  padding:10px 12px 10px 20px;border-radius:999px;
  background:rgba(8,14,28,.55);
  border:1px solid var(--line);
  backdrop-filter:blur(18px);-webkit-backdrop-filter:blur(18px);
  box-shadow:0 18px 44px rgba(3,8,20,.5);
  transition:background .3s ease,box-shadow .3s ease,border-color .3s ease;
}
.is-scrolled .pill-nav{
  background:rgba(8,14,28,.86);
  border-color:rgba(120,170,255,.24);
  box-shadow:0 22px 54px rgba(3,8,20,.66),0 0 0 1px rgba(34,211,238,.12);
}
.brand{display:flex;align-items:center;gap:10px;font-weight:700;color:var(--text-0);font-size:17px;letter-spacing:.3px;white-space:nowrap}
.brand-mark{
  width:34px;height:34px;border-radius:12px;display:grid;place-items:center;
  background:linear-gradient(135deg,#2563EB,#22D3EE);color:#04121F;font-weight:800;font-size:16px;
  box-shadow:0 6px 18px rgba(34,211,238,.34);
}
.nav-links{display:flex;align-items:center;gap:2px;margin-left:auto}
.nav-links a{display:block;padding:9px 14px;border-radius:999px;font-size:15px;color:var(--text-1);transition:color .25s,background .25s,box-shadow .25s}
.nav-links a:hover{color:var(--text-0);background:rgba(47,125,255,.16)}
.nav-links a.is-active{color:#EAF4FF;background:rgba(47,125,255,.22);box-shadow:inset 0 0 0 1px rgba(34,211,238,.3)}
.nav-cta{margin-left:6px}
.nav-toggle{
  display:none;width:42px;height:42px;border-radius:50%;place-items:center;
  border:1px solid var(--line);background:rgba(12,20,40,.7);color:var(--text-0);margin-left:auto;
}
.drawer{
  display:none;flex-direction:column;gap:4px;margin-top:12px;padding:14px;
  border-radius:22px;background:rgba(8,14,28,.94);border:1px solid var(--line);
  backdrop-filter:blur(20px);-webkit-backdrop-filter:blur(20px);
  box-shadow:0 26px 60px rgba(3,8,20,.7);
}
.drawer a{padding:12px 14px;border-radius:14px;font-size:15px;color:var(--text-1);transition:.22s}
.drawer a:hover{background:rgba(47,125,255,.16);color:var(--text-0)}
.drawer a.is-active{background:rgba(47,125,255,.22);color:#EAF4FF}
.drawer .btn{margin-top:8px;justify-content:center}
.drawer.is-open{display:flex}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;gap:8px;justify-content:center;
  padding:12px 24px;border-radius:999px;font-size:15px;font-weight:600;
  transition:transform .25s ease,box-shadow .25s ease,filter .25s ease,background .25s ease,border-color .25s ease;
}
.btn-primary{
  background:linear-gradient(135deg,#2563EB,#22D3EE);color:#04121F;
  box-shadow:0 0 0 1px rgba(34,211,238,.45),0 10px 30px rgba(34,211,238,.25);
}
.btn-primary:hover{transform:translateY(-2px);filter:brightness(1.08);box-shadow:0 0 0 1px rgba(34,211,238,.6),0 16px 38px rgba(34,211,238,.32)}
.btn-primary:active{transform:translateY(1px)}
.btn-ghost{
  background:rgba(16,26,48,.6);color:var(--text-0);border:1px solid var(--line);
}
.btn-ghost:hover{background:rgba(24,40,72,.78);border-color:var(--line-strong);transform:translateY(-2px)}
.btn:focus-visible,a:focus-visible,button:focus-visible,input:focus-visible,textarea:focus-visible{
  outline:2px solid var(--secondary);outline-offset:2px;
}

main{padding-top:118px}

/* ---------- 文章头部 ---------- */
.article-hero{padding:26px 0 4px}
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:14px;color:var(--text-2)}
.breadcrumb a{transition:color .2s}
.breadcrumb a:hover{color:var(--secondary)}
.breadcrumb .sep{color:rgba(124,140,166,.6)}
.channel-tag{
  display:inline-flex;align-items:center;gap:8px;margin-top:22px;
  padding:7px 16px;border-radius:999px;font-size:14px;letter-spacing:.4px;
  color:#9FE8F5;background:rgba(34,211,238,.1);border:1px solid rgba(34,211,238,.3);
}
.channel-tag::before{content:"";width:7px;height:7px;border-radius:50%;background:var(--secondary);box-shadow:0 0 12px rgba(34,211,238,.9)}
.article-title{
  margin-top:18px;
  font-size:clamp(1.9rem,3.8vw,2.95rem);
  line-height:1.24;font-weight:800;letter-spacing:-.5px;color:var(--text-0);
  max-width:960px;
}
.meta-row{
  display:flex;flex-wrap:wrap;align-items:center;gap:10px 24px;
  margin-top:22px;padding-top:18px;border-top:1px solid var(--line);
  font-size:14px;color:var(--text-2);
}
.meta-row span{display:inline-flex;align-items:center;gap:7px}
.meta-dot{width:5px;height:5px;border-radius:50%;background:rgba(34,211,238,.7)}

/* ---------- 正文 ---------- */
.article-shell{padding:34px 0 90px}
.article-body{
  max-width:860px;margin:0 auto;padding:42px 46px;border-radius:var(--radius-lg);
  background:linear-gradient(158deg,rgba(20,32,58,.8),rgba(10,16,32,.62));
  border:1px solid var(--line);
  backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px);
  box-shadow:var(--shadow-card),inset 0 1px 0 rgba(255,255,255,.05);
}
.article-body > *:first-child{margin-top:0}
.article-body > * + *{margin-top:20px}
.article-body p{color:var(--text-1);font-size:17px;line-height:1.9}
.article-body h2{
  position:relative;margin-top:46px;padding-left:18px;
  font-size:1.55rem;line-height:1.4;font-weight:750;color:var(--text-0);
}
.article-body h2::before{
  content:"";position:absolute;left:0;top:7px;bottom:7px;width:4px;border-radius:4px;
  background:linear-gradient(180deg,#2F7DFF,#22D3EE);box-shadow:0 0 18px rgba(34,211,238,.6);
}
.article-body h3{margin-top:32px;font-size:1.2rem;font-weight:700;color:var(--text-0)}
.article-body a{color:#7FD3FF;border-bottom:1px dashed rgba(127,211,255,.5);transition:.2s}
.article-body a:hover{color:#B8ECFF;border-bottom-style:solid}
.article-body ul{list-style:disc;padding-left:24px}
.article-body ol{list-style:decimal;padding-left:24px}
.article-body li{margin:9px 0}
.article-body li::marker{color:var(--secondary)}
.article-body strong{color:#E6F0FF}
.article-body blockquote{
  margin:30px 0;padding:20px 26px;border-left:3px solid var(--secondary);
  border-radius:0 18px 18px 0;color:#DCE8FA;
  background:linear-gradient(90deg,rgba(34,211,238,.13),rgba(34,211,238,.015));
  box-shadow:inset 0 0 0 1px rgba(34,211,238,.14),0 0 32px rgba(34,211,238,.09);
}
.article-body img{border-radius:18px;border:1px solid var(--line);margin:28px 0;width:100%;height:auto}
.article-body figure{margin:28px 0}
.article-body figcaption{margin-top:10px;font-size:13.5px;color:var(--text-2);text-align:center}
.article-body table{width:100%;border-collapse:collapse;margin:28px 0;font-size:15px;overflow:hidden;border-radius:16px;border:1px solid var(--line)}
.article-body th,.article-body td{padding:12px 15px;border-bottom:1px solid var(--line);text-align:left}
.article-body th{background:rgba(47,125,255,.14);color:var(--text-0);font-weight:600}
.article-body tr:last-child td{border-bottom:none}
.article-body pre{
  margin:26px 0;padding:18px 20px;border-radius:16px;overflow-x:auto;
  background:rgba(5,10,22,.92);border:1px solid var(--line);font-size:14.5px;line-height:1.7;
}
.article-body code{font-family:ui-monospace,SFMono-Regular,Menlo,monospace;font-size:14.5px;color:#9BE7FF}
.article-body hr{border:none;height:1px;background:linear-gradient(90deg,transparent,rgba(120,170,255,.35),transparent);margin:38px 0}
.empty-state{
  max-width:860px;margin:0 auto;padding:60px 32px;text-align:center;border-radius:var(--radius-lg);
  background:linear-gradient(158deg,rgba(20,32,58,.78),rgba(10,16,32,.6));
  border:1px solid var(--line);box-shadow:var(--shadow-card);
}
.empty-icon{
  width:64px;height:64px;margin:0 auto 20px;border-radius:20px;display:grid;place-items:center;
  background:linear-gradient(135deg,rgba(47,125,255,.26),rgba(34,211,238,.16));
  border:1px solid rgba(34,211,238,.3);color:#9FE8F5;font-size:26px;
}
.empty-state h2{color:var(--text-0);font-size:1.4rem;font-weight:700}
.empty-state p{margin-top:12px;color:var(--text-2);font-size:15.5px}
.empty-state .btn{margin-top:26px}

/* ---------- 通用区块头 ---------- */
.section{padding:0 0 96px}
.section-head{max-width:760px;margin-bottom:34px}
.section-head h2{font-size:clamp(1.5rem,2.7vw,2.05rem);font-weight:760;color:var(--text-0);letter-spacing:-.3px}
.section-head p{margin-top:12px;color:var(--text-2);font-size:16px}

/* ---------- 延伸阅读 ---------- */
.rec-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.rec-card{
  display:flex;flex-direction:column;overflow:hidden;border-radius:var(--radius-md);
  background:linear-gradient(160deg,rgba(20,32,58,.82),rgba(10,16,32,.62));
  border:1px solid var(--line);
  transition:transform .28s ease,border-color .28s ease,box-shadow .28s ease;
}
.rec-card:hover{transform:translateY(-6px);border-color:rgba(34,211,238,.42);box-shadow:0 26px 58px rgba(6,16,38,.66)}
.rec-thumb{position:relative;height:168px;overflow:hidden}
.rec-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .5s ease}
.rec-card:hover .rec-thumb img{transform:scale(1.05)}
.rec-badge{
  position:absolute;left:14px;top:14px;padding:5px 12px;border-radius:999px;font-size:12.5px;
  color:#0A1726;background:linear-gradient(135deg,#8FE4FF,#22D3EE);font-weight:700;
}
.rec-body{padding:22px 24px 26px;display:flex;flex-direction:column;flex:1}
.rec-body h3{font-size:1.1rem;font-weight:700;color:var(--text-0)}
.rec-body p{margin-top:10px;font-size:14.8px;color:var(--text-1);flex:1}
.rec-more{margin-top:18px;font-size:14px;color:var(--secondary);display:inline-flex;align-items:center;gap:6px}

/* ---------- FAQ ---------- */
.faq-list{display:flex;flex-direction:column;gap:14px;max-width:900px}
.faq-item{
  border-radius:var(--radius-md);border:1px solid var(--line);
  background:linear-gradient(160deg,rgba(18,29,52,.78),rgba(9,15,30,.6));
  backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
  overflow:hidden;transition:border-color .3s ease,box-shadow .3s ease;
}
.faq-item.is-open{border-color:rgba(34,211,238,.4);box-shadow:0 0 0 1px rgba(34,211,238,.12),0 20px 46px rgba(4,10,26,.55)}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:18px;
  padding:20px 24px;text-align:left;font-size:1.02rem;font-weight:600;color:var(--text-0);
}
.faq-sign{
  flex:none;width:30px;height:30px;border-radius:50%;display:grid;place-items:center;
  border:1px solid var(--line);color:var(--secondary);font-size:17px;line-height:1;
  transition:transform .3s ease,background .3s ease;
}
.faq-item.is-open .faq-sign{transform:rotate(45deg);background:rgba(34,211,238,.16)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .38s ease}
.faq-item.is-open .faq-a{max-height:340px}
.faq-a-inner{padding:0 24px 22px;color:var(--text-1);font-size:15.5px;border-left:2px solid rgba(34,211,238,.5);margin-left:24px;padding-left:18px;padding-right:24px}

/* ---------- CTA 与表单 ---------- */
.cta-panel{
  display:grid;grid-template-columns:1.05fr 1fr;gap:44px;padding:46px;
  border-radius:28px;
  background:linear-gradient(150deg,rgba(20,36,66,.92),rgba(8,14,30,.86));
  border:1px solid rgba(34,211,238,.24);
  box-shadow:0 0 0 1px rgba(34,211,238,.07),0 32px 72px rgba(3,10,26,.62);
}
.cta-panel h2{font-size:clamp(1.5rem,2.6vw,2rem);color:var(--text-0);font-weight:760;line-height:1.3}
.cta-panel > div > p{margin-top:16px;color:var(--text-1);font-size:16px}
.cta-points{margin-top:26px;display:flex;flex-direction:column;gap:12px}
.cta-points li{display:flex;gap:10px;align-items:flex-start;color:var(--text-1);font-size:15.5px}
.cta-points li::before{
  content:"";flex:none;width:18px;height:18px;margin-top:5px;border-radius:50%;
  background:radial-gradient(circle at 50% 50%,#34D399 0 45%,transparent 46%);
  box-shadow:0 0 14px rgba(52,211,153,.6);
}
.cta-actions{margin-top:30px;display:flex;flex-wrap:wrap;gap:14px}
.cta-form{display:grid;gap:16px;align-content:start}
.field{display:flex;flex-direction:column;gap:8px}
.field label{font-size:14px;color:var(--text-1)}
.field input,.field textarea{
  width:100%;padding:13px 16px;border-radius:14px;font-size:15px;
  background:rgba(8,14,30,.82);border:1px solid var(--line);color:var(--text-0);
  font-family:inherit;transition:border-color .25s ease,box-shadow .25s ease,background .25s ease;
}
.field input::placeholder,.field textarea::placeholder{color:rgba(124,140,166,.75)}
.field input:focus,.field textarea:focus{
  outline:none;border-color:rgba(34,211,238,.7);background:rgba(10,18,36,.95);
  box-shadow:0 0 0 4px rgba(34,211,238,.13);
}
.field textarea{min-height:104px;resize:vertical}
.checkbox-row{display:flex;gap:10px;align-items:flex-start;font-size:13.5px;color:var(--text-2);line-height:1.6}
.checkbox-row input{width:17px;height:17px;margin-top:3px;accent-color:#22D3EE;flex:none}
.form-note{font-size:13.5px;color:var(--text-2)}
.form-status{font-size:14px;color:var(--success);min-height:20px}

/* ---------- 页脚 ---------- */
.site-footer{
  position:relative;margin-top:20px;padding:64px 0 28px;
  border-top:1px solid var(--line);
  background:linear-gradient(180deg,rgba(6,10,22,.35),rgba(4,8,18,.96));
}
.site-footer::before{
  content:"";position:absolute;top:-1px;left:0;right:0;height:1px;
  background:linear-gradient(90deg,transparent,rgba(34,211,238,.75),transparent);
}
.foot-grid{display:grid;grid-template-columns:1.7fr 1fr 1fr 1fr;gap:36px}
.foot-brand p{margin-top:16px;max-width:340px;font-size:15px;color:var(--text-2);line-height:1.8}
.site-footer h4{margin-bottom:16px;font-size:15px;font-weight:600;color:var(--text-0);letter-spacing:.4px}
.site-footer ul li{margin-bottom:10px}
.site-footer a{color:var(--text-2);font-size:15px;transition:color .22s ease}
.site-footer a:hover{color:var(--secondary)}
.foot-bottom{
  margin-top:44px;padding-top:22px;border-top:1px solid var(--line);
  display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;
  font-size:13.5px;color:var(--text-2);
}

/* ---------- 浮动 CTA ---------- */
.float-cta{
  position:fixed;right:24px;bottom:24px;z-index:70;
  padding:14px 26px;border-radius:999px;font-size:15px;font-weight:700;color:#04121F;
  background:linear-gradient(135deg,#2563EB,#22D3EE);
  box-shadow:0 0 0 1px rgba(34,211,238,.45),0 14px 34px rgba(34,211,238,.28);
  transition:transform .28s ease,filter .28s ease,box-shadow .28s ease;
}
.float-cta:hover{transform:translateY(-2px);filter:brightness(1.08);box-shadow:0 0 0 1px rgba(34,211,238,.6),0 20px 44px rgba(34,211,238,.34)}

/* ---------- 响应式 ---------- */
@media (max-width:1080px){
  .nav-links{display:none}
  .nav-cta{display:none}
  .nav-toggle{display:grid}
}
@media (max-width:1024px){
  .rec-grid{grid-template-columns:repeat(2,1fr)}
  .cta-panel{grid-template-columns:1fr;gap:34px;padding:34px}
  .foot-grid{grid-template-columns:1fr 1fr;gap:30px}
}
@media (max-width:768px){
  body{font-size:16px}
  main{padding-top:104px}
  .article-body{padding:28px 22px;border-radius:20px}
  .article-body p{font-size:16px}
  .article-body h2{font-size:1.34rem;margin-top:36px}
  .rec-grid{grid-template-columns:1fr}
  .foot-grid{grid-template-columns:1fr}
  .section{padding-bottom:70px}
  .cta-panel{padding:26px 20px;border-radius:22px}
  .faq-q{padding:17px 18px;font-size:.98rem}
  .faq-a-inner{margin-left:16px;padding-left:14px;padding-right:18px}
  .article-title{font-size:1.72rem}
}
@media (max-width:520px){
  .shell{padding:0 16px}
  body{padding-bottom:62px}
  .pill-nav{padding:9px 10px 9px 14px;gap:10px}
  .brand span:last-child{font-size:15.5px}
  .float-cta{left:0;right:0;bottom:0;border-radius:0;text-align:center;padding:15px 16px}
  .foot-bottom{flex-direction:column}
  .cta-actions .btn{width:100%}
}

/* roulang page: category1 */
:root{
  --bg-0:#060A16;
  --bg-1:#0B1224;
  --surface:rgba(16,26,48,.72);
  --surface-2:rgba(20,32,58,.82);
  --line:rgba(120,170,255,.16);
  --line-strong:rgba(120,170,255,.34);
  --primary:#2F7DFF;
  --secondary:#22D3EE;
  --accent:#FFB020;
  --success:#34D399;
  --text-0:#F4F8FF;
  --text-1:#B7C4D8;
  --text-2:#7C8CA6;
  --radius-xl:24px;
  --radius-lg:20px;
  --radius-md:16px;
  --radius-sm:14px;
  --glow:0 0 0 1px rgba(34,211,238,.45),0 10px 30px rgba(34,211,238,.25);
  --shadow-card:0 24px 60px rgba(3,8,20,.55);
  --font-cn:"Noto Sans SC","PingFang SC","Microsoft YaHei","Hiragino Sans GB",system-ui,-apple-system,sans-serif;
}
*,*::before,*::after{box-sizing:border-box;}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%;}
body{
  margin:0;
  font-family:var(--font-cn);
  font-size:17px;
  line-height:1.8;
  color:var(--text-1);
  background-color:var(--bg-0);
  background-image:
    radial-gradient(900px 520px at 12% -6%,rgba(47,125,255,.22),transparent 62%),
    radial-gradient(760px 460px at 88% 4%,rgba(34,211,238,.16),transparent 60%),
    radial-gradient(700px 520px at 50% 108%,rgba(255,176,32,.08),transparent 60%);
  background-repeat:no-repeat;
  overflow-x:hidden;
}
body::before{
  content:"";
  position:fixed;
  inset:0;
  pointer-events:none;
  z-index:0;
  background-image:
    linear-gradient(rgba(120,170,255,.045) 1px,transparent 1px),
    linear-gradient(90deg,rgba(120,170,255,.045) 1px,transparent 1px);
  background-size:64px 64px;
  mask-image:radial-gradient(circle at 50% 20%,#000 0%,transparent 78%);
  -webkit-mask-image:radial-gradient(circle at 50% 20%,#000 0%,transparent 78%);
}
h1,h2,h3,h4{color:var(--text-0);font-weight:700;line-height:1.22;margin:0;}
p{margin:0;}
a{color:inherit;text-decoration:none;}
img{max-width:100%;display:block;}
ul{margin:0;padding:0;list-style:none;}
button{font-family:inherit;}
:focus-visible{outline:2px solid var(--secondary);outline-offset:3px;border-radius:8px;}
.shell{width:100%;max-width:1240px;margin:0 auto;padding:0 24px;position:relative;z-index:2;}
.section{padding:96px 0;position:relative;z-index:2;}
.section-sm{padding:72px 0;position:relative;z-index:2;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  padding:6px 14px;border-radius:999px;
  background:rgba(47,125,255,.12);
  border:1px solid rgba(47,125,255,.28);
  color:#CFE4FF;font-size:13px;letter-spacing:.06em;
}
.eyebrow::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--secondary);box-shadow:0 0 10px var(--secondary);}
.h1{font-size:clamp(2.1rem,4.6vw,3.5rem);letter-spacing:-.01em;}
.h2{font-size:clamp(1.6rem,3.2vw,2.4rem);}
.h3{font-size:clamp(1.1rem,1.6vw,1.35rem);}
.lead{font-size:clamp(1rem,1.4vw,1.08rem);color:var(--text-1);}
.muted{color:var(--text-2);font-size:14.5px;}
.section-head{max-width:760px;margin-bottom:52px;}
.section-head p{margin-top:16px;}
.grad-text{
  background:linear-gradient(100deg,#8FC4FF 0%,#22D3EE 52%,#FFD98A 100%);
  -webkit-background-clip:text;background-clip:text;color:transparent;
}
/* ============ 导航 ============ */
.nav-wrap{position:fixed;top:14px;left:0;right:0;z-index:80;}
.pill-nav{
  display:flex;align-items:center;justify-content:space-between;gap:18px;
  padding:10px 14px;border-radius:999px;
  background:rgba(8,14,28,.55);
  border:1px solid var(--line);
  backdrop-filter:blur(18px);-webkit-backdrop-filter:blur(18px);
  transition:background .35s ease,box-shadow .35s ease,border-color .35s ease;
}
.nav-wrap.scrolled .pill-nav{
  background:rgba(8,14,28,.86);
  border-color:rgba(34,211,238,.28);
  box-shadow:0 20px 50px rgba(3,8,20,.62);
}
.brand{display:inline-flex;align-items:center;gap:10px;color:var(--text-0);font-weight:700;font-size:16px;letter-spacing:.01em;white-space:nowrap;}
.brand-mark{
  width:34px;height:34px;border-radius:12px;display:grid;place-items:center;
  background:linear-gradient(135deg,#2563EB,#22D3EE);
  color:#05121F;font-size:16px;font-weight:800;
  box-shadow:0 8px 22px rgba(34,211,238,.34);
}
.nav-links{display:flex;align-items:center;gap:4px;}
.nav-links a{
  display:block;padding:8px 15px;border-radius:999px;font-size:14.5px;color:var(--text-1);
  transition:background .25s ease,color .25s ease,box-shadow .25s ease;
}
.nav-links a:hover{background:rgba(47,125,255,.15);color:var(--text-0);}
.nav-links a.is-active{
  background:rgba(34,211,238,.16);color:#EAF7FF;
  box-shadow:inset 0 0 0 1px rgba(34,211,238,.38);
}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:11px 22px;border-radius:999px;border:1px solid transparent;
  font-size:15px;font-weight:600;cursor:pointer;white-space:nowrap;
  transition:transform .22s ease,box-shadow .28s ease,background .28s ease,filter .22s ease,border-color .28s ease,color .22s ease;
}
.btn-primary{
  background:linear-gradient(135deg,#2563EB,#22D3EE);
  color:#04121F;
  box-shadow:0 0 0 1px rgba(34,211,238,.45),0 10px 30px rgba(34,211,238,.25);
}
.btn-primary:hover{transform:translateY(-2px);filter:brightness(1.08);box-shadow:0 0 0 1px rgba(34,211,238,.6),0 18px 42px rgba(34,211,238,.36);}
.btn-primary:active{transform:translateY(1px);}
.btn-ghost{
  background:rgba(120,170,255,.08);
  border-color:var(--line);
  color:var(--text-0);
}
.btn-ghost:hover{background:rgba(120,170,255,.16);border-color:var(--line-strong);transform:translateY(-2px);}
.btn-sm{padding:9px 18px;font-size:14px;}
.nav-cta{padding:10px 20px;font-size:14.5px;}
.nav-toggle{
  display:none;align-items:center;justify-content:center;
  width:42px;height:42px;border-radius:999px;
  background:rgba(120,170,255,.1);border:1px solid var(--line);color:var(--text-0);cursor:pointer;
}
.drawer{
  display:none;flex-direction:column;gap:4px;
  position:absolute;top:calc(100% + 12px);left:0;right:0;
  padding:14px;border-radius:22px;
  background:rgba(8,14,28,.92);
  border:1px solid var(--line);
  backdrop-filter:blur(20px);-webkit-backdrop-filter:blur(20px);
  box-shadow:var(--shadow-card);
}
.drawer.open{display:flex;}
.drawer a{padding:11px 14px;border-radius:14px;color:var(--text-1);font-size:15px;}
.drawer a:hover,.drawer a.is-active{background:rgba(34,211,238,.14);color:#EAF7FF;}
.drawer .btn{margin-top:8px;}
/* ============ Hero ============ */
.cat-hero{
  position:relative;
  padding:158px 0 92px;
  overflow:hidden;
  background-image:linear-gradient(180deg,rgba(6,10,22,.82) 0%,rgba(6,10,22,.92) 62%,rgba(6,10,22,1) 100%),url('/assets/images/backpic/back-1.webp');
  background-size:cover;
  background-position:center;
  border-bottom:1px solid var(--line);
}
.cat-hero::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  background:radial-gradient(680px 400px at 82% 18%,rgba(34,211,238,.18),transparent 66%);
}
.crumbs{display:flex;flex-wrap:wrap;align-items:center;gap:10px;font-size:14px;color:var(--text-2);margin-bottom:26px;}
.crumbs a:hover{color:var(--secondary);}
.crumbs span.sep{opacity:.5;}
.hero-grid{display:grid;grid-template-columns:1.06fr .94fr;gap:52px;align-items:center;}
.hero-copy .h1{margin:20px 0 20px;}
.hero-copy .lead{max-width:560px;}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:32px;}
.hero-tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:30px;}
.tag{
  display:inline-flex;align-items:center;gap:7px;
  padding:7px 14px;border-radius:999px;font-size:13.5px;
  background:rgba(120,170,255,.08);border:1px solid var(--line);color:var(--text-1);
}
.tag i{width:6px;height:6px;border-radius:50%;background:var(--success);display:inline-block;}
.hero-visual{position:relative;}
.hero-media{
  border-radius:var(--radius-xl);overflow:hidden;border:1px solid var(--line);
  box-shadow:var(--shadow-card);position:relative;
}
.hero-media img{width:100%;height:400px;object-fit:cover;border-radius:var(--radius-xl);}
.hero-media::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(6,10,22,.05) 0%,rgba(6,10,22,.55) 100%);
}
.hero-float{
  position:absolute;left:-22px;bottom:-26px;
  min-width:212px;padding:18px 20px;border-radius:var(--radius-lg);
  background:linear-gradient(160deg,rgba(20,32,58,.9),rgba(10,16,32,.72));
  border:1px solid var(--line-strong);
  backdrop-filter:blur(18px);-webkit-backdrop-filter:blur(18px);
  box-shadow:0 22px 50px rgba(3,8,20,.6);
}
.hero-float strong{display:block;font-size:28px;color:var(--text-0);line-height:1.1;}
.hero-float span{font-size:13.5px;color:var(--text-2);}
/* ============ 通用卡片 ============ */
.card{
  background:linear-gradient(160deg,rgba(20,32,58,.82),rgba(10,16,32,.62));
  border:1px solid var(--line);
  border-radius:var(--radius-lg);
  padding:28px;
  backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px);
  box-shadow:inset 0 1px 0 rgba(255,255,255,.06);
  transition:transform .3s ease,border-color .3s ease,box-shadow .3s ease;
}
.card:hover{transform:translateY(-4px);border-color:var(--line-strong);box-shadow:inset 0 1px 0 rgba(255,255,255,.08),0 22px 48px rgba(3,8,20,.55);}
.card-title{font-size:1.1rem;margin-bottom:10px;}
.card p{font-size:15px;color:var(--text-1);}
.icon-badge{
  width:44px;height:44px;border-radius:14px;display:grid;place-items:center;
  background:rgba(34,211,238,.12);border:1px solid rgba(34,211,238,.28);
  color:var(--secondary);margin-bottom:18px;
}
/* ============ 左文右图 ============ */
.split{display:grid;grid-template-columns:.95fr 1.05fr;gap:56px;align-items:center;}
.split-media{border-radius:var(--radius-xl);overflow:hidden;border:1px solid var(--line);box-shadow:var(--shadow-card);}
.split-media img{width:100%;height:360px;object-fit:cover;border-radius:var(--radius-xl);}
.check-list{display:grid;gap:16px;margin-top:28px;}
.check-item{display:flex;gap:14px;align-items:flex-start;}
.check-item .dot{
  flex:0 0 auto;width:24px;height:24px;border-radius:8px;margin-top:4px;
  display:grid;place-items:center;background:rgba(52,211,153,.14);border:1px solid rgba(52,211,153,.34);color:var(--success);
}
.check-item strong{display:block;color:var(--text-0);font-size:15.5px;margin-bottom:4px;}
.check-item p{font-size:14.5px;color:var(--text-2);}
/* ============ 时间线 ============ */
.timeline{position:relative;margin-top:12px;padding-left:34px;}
.timeline::before{
  content:"";position:absolute;left:11px;top:8px;bottom:8px;width:2px;
  background:linear-gradient(180deg,rgba(34,211,238,.6),rgba(47,125,255,.25),transparent);
}
.tl-item{position:relative;padding:0 0 34px 0;}
.tl-item:last-child{padding-bottom:0;}
.tl-item::before{
  content:"";position:absolute;left:-30px;top:8px;width:12px;height:12px;border-radius:50%;
  background:var(--secondary);box-shadow:0 0 0 4px rgba(34,211,238,.14),0 0 14px rgba(34,211,238,.7);
}
.tl-item h3{font-size:1.12rem;margin-bottom:8px;}
.tl-item p{font-size:15px;color:var(--text-1);}
.tl-time{display:inline-block;margin-bottom:8px;font-size:13px;color:var(--accent);letter-spacing:.06em;}
/* ============ 网格卡片 ============ */
.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.grid-2{display:grid;grid-template-columns:repeat(2,1fr);gap:24px;}
.grid-4{display:grid;grid-template-columns:repeat(4,1fr);gap:22px;}
/* ============ FAQ ============ */
.faq{margin-top:12px;display:grid;gap:14px;}
.faq-item{
  border:1px solid var(--line);border-radius:18px;overflow:hidden;
  background:linear-gradient(160deg,rgba(20,32,58,.8),rgba(10,16,32,.6));
  transition:border-color .3s ease,box-shadow .3s ease;
}
.faq-item.open{border-color:rgba(34,211,238,.4);box-shadow:0 0 0 1px rgba(34,211,238,.18),0 18px 44px rgba(3,8,20,.5);}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:18px;
  padding:20px 24px;background:transparent;border:0;cursor:pointer;text-align:left;
  color:var(--text-0);font-size:16px;font-weight:600;
}
.faq-q .plus{
  flex:0 0 auto;width:26px;height:26px;border-radius:50%;position:relative;
  background:rgba(34,211,238,.12);border:1px solid rgba(34,211,238,.3);
  transition:transform .32s ease,background .3s ease;
}
.faq-q .plus::before,.faq-q .plus::after{
  content:"";position:absolute;left:50%;top:50%;background:var(--secondary);transform:translate(-50%,-50%);
}
.faq-q .plus::before{width:11px;height:1.6px;}
.faq-q .plus::after{width:1.6px;height:11px;transition:opacity .3s ease;}
.faq-item.open .faq-q .plus{transform:rotate(180deg);background:rgba(34,211,238,.22);}
.faq-item.open .faq-q .plus::after{opacity:0;}
.faq-a{max-height:0;overflow:hidden;transition:max-height .4s ease;}
.faq-a p{padding:0 24px 22px;font-size:15px;color:var(--text-1);}
.faq-item.open::before{content:"";display:block;}
/* ============ CTA ============ */
.cta-panel{
  position:relative;overflow:hidden;
  border-radius:28px;padding:56px;
  background:linear-gradient(150deg,rgba(24,42,78,.9),rgba(9,15,30,.85));
  border:1px solid var(--line-strong);
  box-shadow:0 0 0 1px rgba(34,211,238,.14),0 30px 70px rgba(3,8,20,.62);
}
.cta-panel::after{
  content:"";position:absolute;right:-120px;top:-120px;width:360px;height:360px;border-radius:50%;
  background:radial-gradient(circle,rgba(34,211,238,.28),transparent 65%);
  pointer-events:none;
}
.cta-grid{display:grid;grid-template-columns:1.15fr .85fr;gap:44px;align-items:center;position:relative;z-index:2;}
.cta-list{display:grid;gap:12px;margin-top:22px;}
.cta-list li{display:flex;gap:10px;align-items:flex-start;font-size:15px;color:var(--text-1);}
.cta-list li::before{content:"";flex:0 0 auto;width:7px;height:7px;margin-top:9px;border-radius:50%;background:var(--secondary);box-shadow:0 0 10px var(--secondary);}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:30px;}
/* ============ 浮动 CTA ============ */
.float-cta{
  position:fixed;right:26px;bottom:26px;z-index:70;
  display:inline-flex;align-items:center;gap:9px;
  padding:13px 24px;border-radius:999px;
  background:linear-gradient(135deg,#2563EB,#22D3EE);color:#04121F;
  font-weight:700;font-size:15px;
  box-shadow:0 0 0 1px rgba(34,211,238,.5),0 16px 40px rgba(34,211,238,.32);
  transition:transform .25s ease,box-shadow .3s ease,filter .25s ease;
}
.float-cta:hover{transform:translateY(-3px);filter:brightness(1.07);box-shadow:0 0 0 1px rgba(34,211,238,.65),0 22px 52px rgba(34,211,238,.42);}
/* ============ 页脚 ============ */
.site-footer{
  margin-top:40px;position:relative;z-index:2;
  border-top:1px solid var(--line);
  background:linear-gradient(180deg,rgba(8,14,28,.4),rgba(6,10,22,.9));
  padding:74px 0 28px;
}
.site-footer::before{
  content:"";position:absolute;top:-1px;left:0;right:0;height:1px;
  background:linear-gradient(90deg,transparent,rgba(34,211,238,.55),transparent);
}
.foot-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:40px;}
.foot-brand p{margin-top:18px;font-size:14.5px;color:var(--text-2);max-width:330px;}
.site-footer h4{font-size:15px;color:var(--text-0);margin-bottom:16px;}
.site-footer ul{display:grid;gap:11px;}
.site-footer ul a,.site-footer ul li{font-size:14.5px;color:var(--text-2);transition:color .25s ease;}
.site-footer ul a:hover{color:var(--secondary);}
.foot-bottom{
  margin-top:48px;padding-top:22px;border-top:1px solid rgba(120,170,255,.1);
  display:flex;flex-wrap:wrap;justify-content:space-between;gap:12px;
  font-size:13.5px;color:var(--text-2);
}
/* ============ 动效 ============ */
.reveal{opacity:0;transform:translateY(24px);transition:opacity .7s ease,transform .7s ease;}
.reveal.in{opacity:1;transform:none;}
/* ============ 响应式 ============ */
@media (max-width:1023px){
  .nav-links,.nav-cta{display:none;}
  .nav-toggle{display:inline-flex;}
  .hero-grid{grid-template-columns:1fr;gap:48px;}
  .hero-media img{height:320px;}
  .hero-float{left:16px;bottom:-22px;}
  .split{grid-template-columns:1fr;gap:38px;}
  .grid-3,.grid-4{grid-template-columns:repeat(2,1fr);}
  .cta-grid{grid-template-columns:1fr;gap:32px;}
  .cta-panel{padding:40px 30px;}
  .foot-grid{grid-template-columns:1fr 1fr;gap:34px;}
}
@media (max-width:767px){
  body{font-size:16px;}
  .shell{padding:0 16px;}
  .section{padding:64px 0;}
  .section-sm{padding:52px 0;}
  .cat-hero{padding:130px 0 68px;}
  .grid-2,.grid-3,.grid-4{grid-template-columns:1fr;}
  .hero-media img{height:250px;}
  .hero-float{position:static;margin-top:18px;left:auto;bottom:auto;}
  .split-media img{height:240px;}
  .card{padding:22px;}
  .cta-panel{padding:32px 20px;border-radius:22px;}
  .foot-grid{grid-template-columns:1fr;}
  .float-cta{left:16px;right:16px;bottom:14px;justify-content:center;}
  .faq-q{padding:17px 18px;font-size:15px;}
  .faq-a p{padding:0 18px 20px;}
}
@media (max-width:520px){
  .h1{font-size:1.85rem;}
  .hero-actions .btn{width:100%;}
  .crumbs{font-size:13px;}
}

/* roulang page: category2 */
:root{
  --bg-0:#060A16;
  --bg-1:#0B1224;
  --surface:rgba(16,26,48,.72);
  --surface-soft:rgba(20,32,58,.55);
  --line:rgba(120,170,255,.16);
  --line-strong:rgba(34,211,238,.42);
  --primary:#2F7DFF;
  --secondary:#22D3EE;
  --accent:#FFB020;
  --success:#34D399;
  --text-0:#F4F8FF;
  --text-1:#B7C4D8;
  --text-2:#7C8CA6;
  --radius-lg:24px;
  --radius-md:20px;
  --radius-sm:14px;
  --shadow-card:0 18px 44px rgba(3,8,22,.55);
  --shadow-glow:0 10px 30px rgba(34,211,238,.25);
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  background:var(--bg-0);
  color:var(--text-0);
  font-family:"Noto Sans SC","PingFang SC","Microsoft YaHei","Helvetica Neue",Arial,sans-serif;
  font-size:17px;
  line-height:1.8;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
ul{list-style:none;margin:0;padding:0}
h1,h2,h3,h4{margin:0;line-height:1.22;font-weight:700;letter-spacing:.2px}
p{margin:0}
button{font-family:inherit}
:focus-visible{outline:2px solid var(--secondary);outline-offset:3px;border-radius:12px}

body::before{
  content:"";
  position:fixed;
  inset:0;
  z-index:-2;
  background:
    radial-gradient(900px 520px at 12% -6%,rgba(47,125,255,.20),transparent 62%),
    radial-gradient(760px 480px at 92% 4%,rgba(34,211,238,.14),transparent 60%),
    radial-gradient(700px 500px at 50% 108%,rgba(255,176,32,.08),transparent 62%),
    linear-gradient(180deg,#060A16 0%,#0B1224 55%,#060A16 100%);
}
body::after{
  content:"";
  position:fixed;
  inset:0;
  z-index:-1;
  pointer-events:none;
  opacity:.5;
  background-image:
    linear-gradient(rgba(120,170,255,.055) 1px,transparent 1px),
    linear-gradient(90deg,rgba(120,170,255,.055) 1px,transparent 1px);
  background-size:64px 64px;
}

.shell{width:100%;max-width:1240px;margin:0 auto;padding:0 24px}
.section{padding:96px 0}
.section-tight{padding:72px 0}
.eyebrow{
  display:inline-flex;
  align-items:center;
  gap:8px;
  padding:6px 14px;
  border-radius:999px;
  border:1px solid var(--line);
  background:rgba(47,125,255,.10);
  color:var(--secondary);
  font-size:13px;
  letter-spacing:1px;
}
.h2{font-size:clamp(1.75rem,3.5vw,2.6rem);margin-top:18px}
.lead{color:var(--text-1);font-size:16.5px;margin-top:16px;max-width:62ch}
.muted{color:var(--text-2);font-size:14px}

/* 导航 */
.nav-wrap{
  position:sticky;
  top:0;
  z-index:60;
  padding:16px 0;
  transition:padding .25s ease;
}
.nav-wrap.is-scrolled{padding:10px 0}
.pill-nav{
  display:flex;
  align-items:center;
  gap:16px;
  padding:10px 12px 10px 16px;
  border-radius:999px;
  border:1px solid var(--line);
  background:rgba(8,14,28,.55);
  backdrop-filter:blur(16px);
  -webkit-backdrop-filter:blur(16px);
  transition:background .3s ease,box-shadow .3s ease,border-color .3s ease;
}
.nav-wrap.is-scrolled .pill-nav{
  background:rgba(8,14,28,.86);
  border-color:rgba(34,211,238,.28);
  box-shadow:0 18px 40px rgba(3,8,22,.6);
}
.brand{
  display:inline-flex;
  align-items:center;
  gap:10px;
  font-weight:700;
  font-size:16px;
  white-space:nowrap;
}
.brand-mark{
  display:grid;
  place-items:center;
  width:34px;
  height:34px;
  border-radius:12px;
  background:linear-gradient(135deg,#2563EB,#22D3EE);
  color:#04121F;
  font-weight:800;
  font-size:16px;
  box-shadow:var(--shadow-glow);
}
.nav-links{display:flex;align-items:center;gap:4px;margin-left:auto}
.nav-links a{
  display:inline-block;
  padding:9px 15px;
  border-radius:999px;
  color:var(--text-1);
  font-size:14.5px;
  transition:color .2s ease,background .2s ease,box-shadow .2s ease;
}
.nav-links a:hover{color:var(--text-0);background:rgba(47,125,255,.16)}
.nav-links a.is-active{
  color:#FFFFFF;
  background:rgba(47,125,255,.24);
  box-shadow:inset 0 0 0 1px rgba(34,211,238,.35);
}
.nav-toggle{
  display:none;
  align-items:center;
  justify-content:center;
  width:40px;
  height:40px;
  border-radius:999px;
  border:1px solid var(--line);
  background:rgba(16,26,48,.7);
  color:var(--text-0);
  cursor:pointer;
  margin-left:auto;
}
.drawer{
  display:none;
  margin-top:12px;
  padding:14px;
  border-radius:var(--radius-md);
  border:1px solid var(--line);
  background:rgba(8,14,28,.92);
  backdrop-filter:blur(16px);
  -webkit-backdrop-filter:blur(16px);
}
.drawer.is-open{display:grid;gap:6px}
.drawer a{
  padding:12px 14px;
  border-radius:var(--radius-sm);
  color:var(--text-1);
  font-size:15px;
}
.drawer a:hover,.drawer a.is-active{background:rgba(47,125,255,.18);color:#fff}

/* 按钮 */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  padding:13px 26px;
  border-radius:999px;
  font-size:15px;
  font-weight:600;
  border:1px solid transparent;
  cursor:pointer;
  transition:transform .2s ease,box-shadow .25s ease,background .25s ease,border-color .25s ease,filter .25s ease;
  white-space:nowrap;
}
.btn-primary{
  background:linear-gradient(135deg,#2563EB,#22D3EE);
  color:#04121F;
  box-shadow:0 0 0 1px rgba(34,211,238,.45),var(--shadow-glow);
}
.btn-primary:hover{transform:translateY(-2px);filter:brightness(1.08);box-shadow:0 0 0 1px rgba(34,211,238,.6),0 16px 38px rgba(34,211,238,.34)}
.btn-primary:active{transform:translateY(1px)}
.btn-ghost{
  background:rgba(16,26,48,.5);
  border-color:var(--line);
  color:var(--text-0);
}
.btn-ghost:hover{background:rgba(30,48,82,.7);border-color:var(--line-strong)}
.btn-sm{padding:10px 20px;font-size:14px}
.nav-cta{padding:10px 20px;font-size:14px}

/* 通用卡片 */
.glass{
  border:1px solid var(--line);
  background:linear-gradient(160deg,rgba(20,32,58,.82),rgba(10,16,32,.62));
  backdrop-filter:blur(18px);
  -webkit-backdrop-filter:blur(18px);
  border-radius:var(--radius-lg);
  box-shadow:var(--shadow-card);
  position:relative;
  overflow:hidden;
}
.glass::after{
  content:"";
  position:absolute;
  inset:0;
  border-radius:inherit;
  pointer-events:none;
  box-shadow:inset 0 1px 0 rgba(255,255,255,.06);
}
.card{
  padding:28px;
  transition:transform .25s ease,border-color .25s ease,box-shadow .25s ease;
}
.card:hover{
  transform:translateY(-4px);
  border-color:rgba(34,211,238,.4);
  box-shadow:0 22px 48px rgba(3,8,22,.62);
}
.card h3{font-size:1.22rem;margin-bottom:10px}
.tag{
  display:inline-flex;
  align-items:center;
  gap:6px;
  padding:4px 12px;
  border-radius:999px;
  font-size:12.5px;
  letter-spacing:.4px;
  border:1px solid var(--line);
  background:rgba(47,125,255,.12);
  color:var(--text-1);
}
.tag.accent{border-color:rgba(255,176,32,.4);background:rgba(255,176,32,.12);color:#FFD489}
.tag.ok{border-color:rgba(52,211,153,.4);background:rgba(52,211,153,.12);color:#8FF0CE}

/* Hero */
.hero{
  position:relative;
  padding:64px 0 40px;
}
.hero-bg{
  position:absolute;
  inset:-80px 0 0 0;
  z-index:-1;
  background-image:linear-gradient(180deg,rgba(6,10,22,.55),rgba(6,10,22,.92)),url("/assets/images/backpic/back-2.png");
  background-size:cover;
  background-position:center;
  border-radius:0 0 40px 40px;
}
.hero-grid{
  display:grid;
  grid-template-columns:1.15fr .85fr;
  gap:52px;
  align-items:center;
}
.hero h1{
  font-size:clamp(2.2rem,5vw,3.6rem);
  margin-top:20px;
}
.hero h1 span{
  background:linear-gradient(120deg,#22D3EE,#7FB4FF 60%,#FFB020);
  -webkit-background-clip:text;
  background-clip:text;
  color:transparent;
}
.hero-lead{color:var(--text-1);font-size:17px;margin-top:20px;max-width:56ch}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:30px}
.hero-tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:26px}
.panel{padding:26px}
.panel-head{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:18px}
.panel-head h3{font-size:1.05rem}
.sched-row{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:14px;
  padding:14px 16px;
  border-radius:var(--radius-sm);
  border:1px solid var(--line);
  background:rgba(11,18,36,.6);
  margin-bottom:10px;
  transition:border-color .2s ease,background .2s ease,transform .2s ease;
}
.sched-row:hover{border-color:var(--line-strong);background:rgba(20,34,64,.72);transform:translateX(3px)}
.sched-row strong{font-size:15px;font-weight:600}
.sched-row .time{font-variant-numeric:tabular-nums;color:var(--secondary);font-weight:700;font-size:15px}

/* 指标条 */
.metrics{
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:18px;
  padding:26px;
  border-radius:var(--radius-lg);
  border:1px solid var(--line);
  background:linear-gradient(120deg,rgba(20,32,58,.78),rgba(10,16,32,.58));
  backdrop-filter:blur(16px);
  -webkit-backdrop-filter:blur(16px);
}
.metric b{
  display:block;
  font-size:clamp(1.6rem,3vw,2.15rem);
  font-weight:800;
  letter-spacing:.5px;
  background:linear-gradient(120deg,#F4F8FF,#8FC3FF);
  -webkit-background-clip:text;
  background-clip:text;
  color:transparent;
}
.metric span{display:block;margin-top:6px;font-size:14px;color:var(--text-2)}

/* Bento */
.bento{
  display:grid;
  grid-template-columns:repeat(12,1fr);
  gap:20px;
  margin-top:44px;
}
.b-5{grid-column:span 5}
.b-7{grid-column:span 7}
.b-4{grid-column:span 4}
.b-6{grid-column:span 6}
.b-3{grid-column:span 3}
.b-12{grid-column:span 12}
.bento .glass{height:100%}
.week-strip{display:grid;grid-template-columns:repeat(7,1fr);gap:10px;margin-top:22px}
.day{
  text-align:center;
  padding:14px 6px;
  border-radius:var(--radius-sm);
  border:1px solid var(--line);
  background:rgba(11,18,36,.6);
  transition:border-color .2s ease,transform .2s ease,background .2s ease;
}
.day:hover{transform:translateY(-3px);border-color:var(--line-strong);background:rgba(24,40,74,.7)}
.day em{display:block;font-style:normal;font-size:12.5px;color:var(--text-2)}
.day b{display:block;font-size:17px;margin-top:6px}
.day.hot{border-color:rgba(255,176,32,.42);background:rgba(255,176,32,.1)}
.bullets{display:grid;gap:10px;margin-top:16px}
.bullets li{
  display:flex;
  gap:10px;
  align-items:flex-start;
  color:var(--text-1);
  font-size:15px;
}
.bullets li::before{
  content:"";
  flex:none;
  width:8px;
  height:8px;
  margin-top:9px;
  border-radius:50%;
  background:linear-gradient(135deg,#2563EB,#22D3EE);
  box-shadow:0 0 12px rgba(34,211,238,.6);
}
.media-card{padding:0;overflow:hidden}
.media-card img{width:100%;height:210px;object-fit:cover;opacity:.92}
.media-body{padding:22px 26px 26px}
.flowline{display:grid;gap:12px;margin-top:16px}
.flowline div{
  display:flex;
  align-items:center;
  gap:12px;
  padding:12px 14px;
  border-radius:var(--radius-sm);
  border:1px dashed rgba(120,170,255,.22);
  color:var(--text-1);
  font-size:14.5px;
}
.flowline i{
  font-style:normal;
  flex:none;
  width:36px;
  text-align:center;
  color:var(--secondary);
  font-variant-numeric:tabular-nums;
  font-weight:700;
}

/* 步骤 */
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;margin-top:44px}
.step{padding:26px}
.step-num{
  display:grid;
  place-items:center;
  width:42px;
  height:42px;
  border-radius:14px;
  border:1px solid var(--line-strong);
  background:rgba(34,211,238,.12);
  color:var(--secondary);
  font-weight:800;
  font-size:16px;
  margin-bottom:16px;
}
.step h3{font-size:1.08rem;margin-bottom:8px}
.step p{color:var(--text-1);font-size:15px}
.split{
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:44px;
  align-items:center;
  margin-top:20px;
}
.split img{width:100%;border-radius:var(--radius-lg);border:1px solid var(--line);object-fit:cover;height:320px}

/* FAQ */
.faq-list{display:grid;gap:14px;margin-top:40px}
.faq-item{
  border:1px solid var(--line);
  border-left:3px solid transparent;
  border-radius:var(--radius-md);
  background:linear-gradient(160deg,rgba(20,32,58,.76),rgba(10,16,32,.6));
  backdrop-filter:blur(16px);
  -webkit-backdrop-filter:blur(16px);
  overflow:hidden;
  transition:border-color .3s ease,background .3s ease;
}
.faq-item[open]{
  border-left-color:var(--secondary);
  box-shadow:0 0 0 1px rgba(34,211,238,.16),0 16px 36px rgba(3,8,22,.5);
}
.faq-item summary{
  cursor:pointer;
  list-style:none;
  padding:20px 24px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:18px;
  font-size:1.06rem;
  font-weight:600;
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{
  content:"+";
  flex:none;
  display:grid;
  place-items:center;
  width:28px;
  height:28px;
  border-radius:50%;
  border:1px solid var(--line);
  color:var(--secondary);
  font-size:18px;
  line-height:1;
  transition:transform .3s ease,background .3s ease;
}
.faq-item[open] summary::after{content:"–";transform:rotate(180deg);background:rgba(34,211,238,.14)}
.faq-body{padding:0 24px 22px;color:var(--text-1);font-size:15.5px}

/* CTA */
.cta-band{
  position:relative;
  padding:64px 48px;
  border-radius:var(--radius-lg);
  border:1px solid rgba(34,211,238,.3);
  background:
    radial-gradient(600px 300px at 12% 0%,rgba(47,125,255,.28),transparent 60%),
    linear-gradient(140deg,rgba(20,32,58,.92),rgba(8,14,28,.86));
  overflow:hidden;
  display:grid;
  grid-template-columns:1.2fr .8fr;
  gap:40px;
  align-items:center;
}
.cta-band h2{font-size:clamp(1.6rem,3vw,2.3rem)}
.cta-band p{color:var(--text-1);margin-top:16px;font-size:16px}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:28px}
.cta-side{
  padding:26px;
  border-radius:var(--radius-md);
  border:1px solid var(--line);
  background:rgba(8,14,28,.6);
}
.cta-side ul{display:grid;gap:12px;margin-top:14px}
.cta-side li{display:flex;gap:10px;color:var(--text-1);font-size:15px}
.cta-side li svg{flex:none;margin-top:5px;color:var(--success)}

/* 浮动 CTA */
.float-cta{
  position:fixed;
  right:26px;
  bottom:26px;
  z-index:70;
  display:inline-flex;
  align-items:center;
  gap:10px;
  padding:14px 24px;
  border-radius:999px;
  background:linear-gradient(135deg,#2563EB,#22D3EE);
  color:#04121F;
  font-weight:700;
  font-size:15px;
  box-shadow:0 0 0 1px rgba(34,211,238,.5),0 14px 34px rgba(34,211,238,.3);
  transition:transform .25s ease,box-shadow .25s ease,filter .25s ease;
}
.float-cta:hover{transform:translateY(-3px);filter:brightness(1.06);box-shadow:0 0 0 1px rgba(34,211,238,.66),0 20px 44px rgba(34,211,238,.4)}

/* 页脚 */
.site-footer{
  margin-top:80px;
  border-top:1px solid rgba(120,170,255,.16);
  background:linear-gradient(180deg,rgba(8,14,28,.6),rgba(6,10,22,.96));
  padding:64px 0 30px;
  position:relative;
}
.site-footer::before{
  content:"";
  position:absolute;
  top:-1px;
  left:0;
  right:0;
  height:1px;
  background:linear-gradient(90deg,transparent,rgba(34,211,238,.6),transparent);
}
.foot-grid{
  display:grid;
  grid-template-columns:1.5fr 1fr 1fr 1fr;
  gap:40px;
}
.foot-brand p{color:var(--text-1);font-size:15px;margin-top:18px;max-width:38ch}
.site-footer h4{font-size:15px;margin-bottom:18px;color:var(--text-0)}
.site-footer ul{display:grid;gap:11px}
.site-footer ul a,.site-footer ul li{color:var(--text-2);font-size:14.5px;transition:color .2s ease}
.site-footer ul a:hover{color:var(--secondary)}
.foot-bottom{
  margin-top:46px;
  padding-top:22px;
  border-top:1px solid rgba(120,170,255,.12);
  display:flex;
  flex-wrap:wrap;
  gap:12px;
  justify-content:space-between;
  color:var(--text-2);
  font-size:13.5px;
}

@media (max-width:1024px){
  .nav-links,.nav-cta{display:none}
  .nav-toggle{display:flex}
  .hero-grid{grid-template-columns:1fr;gap:36px}
  .metrics{grid-template-columns:repeat(2,1fr)}
  .b-5,.b-7,.b-4,.b-6,.b-3{grid-column:span 12}
  .steps{grid-template-columns:repeat(2,1fr)}
  .split{grid-template-columns:1fr;gap:28px}
  .cta-band{grid-template-columns:1fr;padding:44px 30px}
  .foot-grid{grid-template-columns:1fr 1fr;gap:32px}
  .section{padding:76px 0}
}
@media (max-width:640px){
  .shell{padding:0 16px}
  body{font-size:16px}
  .pill-nav{padding:9px 10px 9px 12px;gap:10px}
  .brand span:last-child{font-size:15px}
  .section{padding:56px 0}
  .section-tight{padding:48px 0}
  .metrics{grid-template-columns:1fr;gap:14px;padding:20px}
  .week-strip{grid-template-columns:repeat(3,1fr)}
  .steps{grid-template-columns:1fr}
  .card{padding:22px}
  .hero{padding:40px 0 24px}
  .float-cta{
    left:16px;
    right:16px;
    bottom:16px;
    justify-content:center;
  }
  .site-footer{padding-bottom:96px}
  .foot-grid{grid-template-columns:1fr}
  .split img{height:230px}
}

/* roulang page: category3 */
:root{
  --bg-0:#060A16;
  --bg-1:#0B1224;
  --surface:rgba(16,26,48,.72);
  --surface-2:rgba(20,32,58,.82);
  --line:rgba(120,170,255,.16);
  --line-strong:rgba(120,170,255,.34);
  --primary:#2F7DFF;
  --secondary:#22D3EE;
  --accent:#FFB020;
  --success:#34D399;
  --danger:#F87171;
  --text-0:#F4F8FF;
  --text-1:#B7C4D8;
  --text-2:#7C8CA6;
  --radius-lg:24px;
  --radius-md:20px;
  --radius-sm:14px;
  --shadow-card:0 18px 46px rgba(3,8,20,.55);
  --shadow-glow:0 0 0 1px rgba(34,211,238,.45),0 10px 30px rgba(34,211,238,.25);
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  background:
    radial-gradient(900px 520px at 12% -6%, rgba(47,125,255,.20), transparent 62%),
    radial-gradient(760px 480px at 92% 4%, rgba(34,211,238,.14), transparent 60%),
    linear-gradient(180deg,#060A16 0%,#080D1C 42%,#060A16 100%);
  color:var(--text-0);
  font-family:"Noto Sans SC","PingFang SC","Microsoft YaHei","Helvetica Neue",Arial,sans-serif;
  font-size:16px;
  line-height:1.8;
  -webkit-font-smoothing:antialiased;
}
body::before{
  content:"";
  position:fixed;
  inset:0;
  pointer-events:none;
  background-image:
    linear-gradient(rgba(120,170,255,.045) 1px, transparent 1px),
    linear-gradient(90deg, rgba(120,170,255,.045) 1px, transparent 1px);
  background-size:64px 64px;
  mask-image:radial-gradient(circle at 50% 20%, #000 0%, transparent 78%);
  z-index:0;
}
a{color:inherit;text-decoration:none;transition:color .2s ease,opacity .2s ease}
img{max-width:100%;display:block}
button{font:inherit;cursor:pointer}
input,textarea{font:inherit}
::selection{background:rgba(34,211,238,.32);color:#fff}
:focus-visible{outline:2px solid var(--secondary);outline-offset:3px;border-radius:8px}
.shell{width:100%;max-width:1240px;margin:0 auto;padding:0 24px;position:relative;z-index:1}
.section{padding:96px 0}
.section-tight{padding:64px 0}
.sec-head{max-width:760px;margin-bottom:44px}
.sec-eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;letter-spacing:.16em;text-transform:uppercase;
  color:var(--secondary);
  border:1px solid rgba(34,211,238,.28);
  background:rgba(34,211,238,.08);
  padding:6px 14px;border-radius:999px;
}
.sec-title{
  font-size:clamp(1.75rem,3.4vw,2.6rem);
  line-height:1.22;
  margin:18px 0 14px;
  letter-spacing:-.01em;
}
.sec-desc{color:var(--text-1);font-size:17px;margin:0}
.grad-text{
  background:linear-gradient(100deg,#F4F8FF 12%,#8FD8FF 52%,#22D3EE 92%);
  -webkit-background-clip:text;background-clip:text;color:transparent;
}

/* ============ 导航 ============ */
.nav-wrap{position:sticky;top:14px;z-index:80;padding:0 24px}
.nav-wrap .shell{padding:0;max-width:1240px}
.pill-nav{
  display:flex;align-items:center;gap:18px;
  padding:10px 14px 10px 16px;
  border-radius:999px;
  background:rgba(8,14,28,.55);
  border:1px solid var(--line);
  backdrop-filter:blur(18px);
  -webkit-backdrop-filter:blur(18px);
  transition:background .3s ease,box-shadow .3s ease,border-color .3s ease;
}
.nav-wrap.is-scrolled .pill-nav{
  background:rgba(8,14,28,.86);
  border-color:var(--line-strong);
  box-shadow:0 16px 44px rgba(2,6,18,.7);
}
.brand{display:inline-flex;align-items:center;gap:10px;font-weight:700;font-size:17px;letter-spacing:.01em;white-space:nowrap}
.brand-mark{
  width:34px;height:34px;border-radius:11px;
  display:grid;place-items:center;
  font-size:16px;font-weight:800;color:#04121F;
  background:linear-gradient(135deg,#2F7DFF,#22D3EE);
  box-shadow:0 0 18px rgba(34,211,238,.42);
}
.nav-links{display:flex;align-items:center;gap:4px;list-style:none;margin:0 0 0 auto;padding:0}
.nav-links a{
  display:inline-block;
  padding:9px 15px;border-radius:999px;
  font-size:14.5px;color:var(--text-1);
  transition:background .22s ease,color .22s ease;
}
.nav-links a:hover{color:#fff;background:rgba(120,170,255,.12)}
.nav-links a.is-active{
  color:#fff;
  background:linear-gradient(135deg,rgba(47,125,255,.42),rgba(34,211,238,.28));
  box-shadow:inset 0 0 0 1px rgba(34,211,238,.45);
}
.nav-cta{flex:none}
.nav-toggle{
  display:none;align-items:center;justify-content:center;
  width:42px;height:42px;border-radius:999px;
  background:rgba(120,170,255,.10);
  border:1px solid var(--line);color:var(--text-0);
}
.drawer{
  display:none;flex-direction:column;gap:6px;
  margin-top:10px;padding:14px;
  border-radius:24px;
  background:rgba(8,14,28,.94);
  border:1px solid var(--line-strong);
  backdrop-filter:blur(20px);
  box-shadow:0 24px 60px rgba(2,6,18,.7);
}
.drawer a{padding:12px 16px;border-radius:14px;color:var(--text-1);font-size:15px}
.drawer a:hover{background:rgba(120,170,255,.12);color:#fff}
.drawer a.is-active{color:#fff;background:rgba(47,125,255,.24);box-shadow:inset 0 0 0 1px rgba(34,211,238,.4)}
.drawer.is-open{display:flex}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  border-radius:999px;border:1px solid transparent;
  padding:12px 24px;font-size:15px;font-weight:600;
  transition:transform .2s ease,box-shadow .25s ease,background .25s ease,border-color .25s ease,filter .25s ease;
  white-space:nowrap;
}
.btn-primary{
  color:#04121F;
  background:linear-gradient(120deg,#2563EB,#22D3EE);
  box-shadow:var(--shadow-glow);
}
.btn-primary:hover{transform:translateY(-2px);filter:brightness(1.08);box-shadow:0 0 0 1px rgba(34,211,238,.55),0 16px 40px rgba(34,211,238,.35)}
.btn-primary:active{transform:translateY(1px)}
.btn-ghost{
  color:var(--text-0);
  background:rgba(120,170,255,.08);
  border-color:var(--line);
}
.btn-ghost:hover{background:rgba(120,170,255,.16);border-color:var(--line-strong);transform:translateY(-2px)}
.btn-sm{padding:9px 18px;font-size:14px}

/* ============ 面包屑 & Hero ============ */
.crumbs{display:flex;flex-wrap:wrap;gap:8px;align-items:center;font-size:13.5px;color:var(--text-2);padding-top:34px}
.crumbs a:hover{color:var(--secondary)}
.crumbs span.sep{opacity:.5}

.hero{position:relative;overflow:hidden;padding-bottom:26px}
.hero-bg{
  position:absolute;inset:0;
  background-image:linear-gradient(180deg,rgba(6,10,22,.72),rgba(6,10,22,.94)),url("/assets/images/backpic/back-1.webp");
  background-size:cover;background-position:center;
  opacity:.9;
}
.hero-inner{position:relative;z-index:2;display:grid;grid-template-columns:1.08fr .92fr;gap:48px;align-items:center;padding:56px 0 72px}
.hero h1{
  font-size:clamp(2.1rem,4.6vw,3.4rem);
  line-height:1.16;
  margin:18px 0 18px;
  letter-spacing:-.015em;
}
.hero .lead{font-size:17.5px;color:var(--text-1);max-width:620px;margin:0 0 26px}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px}
.hero-stats{display:flex;flex-wrap:wrap;gap:14px;margin-top:34px}
.stat{
  flex:1 1 140px;min-width:132px;
  padding:16px 18px;border-radius:18px;
  background:linear-gradient(160deg,rgba(20,32,58,.78),rgba(10,16,32,.58));
  border:1px solid var(--line);
  backdrop-filter:blur(14px);
}
.stat b{display:block;font-size:24px;line-height:1.2;letter-spacing:-.01em;color:#fff}
.stat span{font-size:13px;color:var(--text-2)}
.hero-visual{
  border-radius:var(--radius-lg);
  border:1px solid var(--line);
  background:linear-gradient(150deg,rgba(20,32,58,.86),rgba(10,16,32,.62));
  backdrop-filter:blur(18px);
  padding:14px;
  box-shadow:var(--shadow-card);
}
.hero-visual img{border-radius:18px;height:290px;width:100%;object-fit:cover}
.hero-visual .cap{display:flex;align-items:center;justify-content:space-between;gap:12px;padding:16px 8px 6px}
.hero-visual .cap p{margin:0;font-size:14px;color:var(--text-1)}

/* ============ 标签 & 徽章 ============ */
.badge{
  display:inline-flex;align-items:center;gap:6px;
  font-size:12.5px;padding:4px 11px;border-radius:999px;
  background:rgba(47,125,255,.16);
  border:1px solid rgba(47,125,255,.34);
  color:#BFDCFF;
}
.badge.gold{background:rgba(255,176,32,.14);border-color:rgba(255,176,32,.36);color:#FFD486}
.badge.green{background:rgba(52,211,153,.13);border-color:rgba(52,211,153,.34);color:#8EF0C6}
.badge.cyan{background:rgba(34,211,238,.13);border-color:rgba(34,211,238,.34);color:#9DEBFA}

.chips{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:24px}
.chip{
  border-radius:999px;padding:9px 18px;font-size:14px;
  color:var(--text-1);background:rgba(120,170,255,.07);
  border:1px solid var(--line);
  transition:all .22s ease;
}
.chip:hover{color:#fff;border-color:var(--line-strong);background:rgba(120,170,255,.15)}
.chip.is-on{
  color:#04121F;font-weight:700;
  background:linear-gradient(120deg,#2F7DFF,#22D3EE);
  border-color:transparent;
  box-shadow:0 8px 24px rgba(34,211,238,.28);
}

/* ============ 横向滚动礼包卡片 ============ */
.rail-block{position:relative}
.rail-wrap{position:relative}
.rail{
  display:flex;gap:20px;
  overflow-x:auto;scroll-snap-type:x mandatory;
  padding:6px 4px 22px;
  scrollbar-width:thin;
  scrollbar-color:rgba(34,211,238,.4) transparent;
}
.rail::-webkit-scrollbar{height:8px}
.rail::-webkit-scrollbar-track{background:rgba(120,170,255,.07);border-radius:999px}
.rail::-webkit-scrollbar-thumb{background:linear-gradient(90deg,#2F7DFF,#22D3EE);border-radius:999px}
.gift-card{
  flex:0 0 328px;
  scroll-snap-align:start;
  border-radius:var(--radius-md);
  border:1px solid var(--line);
  background:linear-gradient(160deg,rgba(20,32,58,.82),rgba(10,16,32,.62));
  backdrop-filter:blur(16px);
  overflow:hidden;
  transition:transform .28s ease,border-color .28s ease,box-shadow .28s ease;
}
.gift-card:hover{transform:translateY(-4px);border-color:var(--line-strong);box-shadow:0 22px 50px rgba(3,8,20,.62)}
.gift-card .media{position:relative;height:168px;overflow:hidden}
.gift-card .media img{width:100%;height:100%;object-fit:cover;transition:transform .5s ease}
.gift-card:hover .media img{transform:scale(1.05)}
.gift-card .media::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(6,10,22,.05),rgba(6,10,22,.78))}
.gift-card .media .badge{position:absolute;top:12px;left:12px;z-index:2}
.gift-card .body{padding:20px 20px 22px}
.gift-card h3{font-size:18px;line-height:1.35;margin:0 0 10px}
.gift-card p{margin:0 0 14px;font-size:14.5px;color:var(--text-1)}
.meta-list{list-style:none;margin:0 0 16px;padding:0;font-size:13px;color:var(--text-2)}
.meta-list li{display:flex;justify-content:space-between;gap:12px;padding:6px 0;border-bottom:1px dashed rgba(120,170,255,.14)}
.meta-list li:last-child{border-bottom:0}
.meta-list b{color:var(--text-1);font-weight:500}
.card-link{display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:600;color:var(--secondary)}
.card-link:hover{color:#fff}
.rail-nav{position:absolute;top:-66px;right:0;display:flex;gap:10px}
.rail-nav button{
  width:42px;height:42px;border-radius:999px;
  border:1px solid var(--line);background:rgba(120,170,255,.09);color:var(--text-0);
  display:grid;place-items:center;transition:all .22s ease;
}
.rail-nav button:hover{background:rgba(34,211,238,.18);border-color:var(--line-strong)}
.rail-empty{
  display:none;padding:40px 24px;border-radius:var(--radius-md);
  border:1px dashed var(--line-strong);background:rgba(16,26,48,.5);
  text-align:center;color:var(--text-1);
}
.rail-empty.is-on{display:block}

/* ============ 非对称优势区 ============ */
.bento{display:grid;grid-template-columns:1.15fr .85fr;gap:20px}
.panel{
  border-radius:var(--radius-md);
  border:1px solid var(--line);
  background:linear-gradient(160deg,rgba(20,32,58,.78),rgba(10,16,32,.56));
  backdrop-filter:blur(14px);
  padding:30px;
}
.panel h3{margin:16px 0 10px;font-size:20px}
.panel p{margin:0;color:var(--text-1);font-size:15.4px}
.ico{
  width:46px;height:46px;border-radius:14px;display:grid;place-items:center;
  background:linear-gradient(140deg,rgba(47,125,255,.28),rgba(34,211,238,.16));
  border:1px solid rgba(34,211,238,.3);
  color:#9DEBFA;
}
.stack{display:grid;gap:20px}
.mini{
  display:flex;gap:16px;align-items:flex-start;
  border-radius:var(--radius-sm);
  border:1px solid var(--line);
  background:rgba(16,26,48,.55);
  padding:20px;
  transition:border-color .25s ease,transform .25s ease;
}
.mini:hover{border-color:var(--line-strong);transform:translateY(-2px)}
.mini h4{margin:0 0 6px;font-size:16.5px}
.mini p{margin:0;font-size:14.4px;color:var(--text-1)}

/* ============ 流程时间线 ============ */
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:18px;position:relative}
.step{
  position:relative;padding:26px 22px;border-radius:var(--radius-md);
  border:1px solid var(--line);
  background:linear-gradient(165deg,rgba(20,32,58,.72),rgba(10,16,32,.5));
}
.step-no{
  width:38px;height:38px;border-radius:12px;display:grid;place-items:center;
  font-weight:800;color:#04121F;
  background:linear-gradient(135deg,#2F7DFF,#22D3EE);
  box-shadow:0 0 18px rgba(34,211,238,.35);
  margin-bottom:16px;
}
.step h3{margin:0 0 8px;font-size:17px}
.step p{margin:0;font-size:14.4px;color:var(--text-1)}
.step::after{
  content:"";position:absolute;right:-14px;top:44px;width:10px;height:2px;
  background:linear-gradient(90deg,rgba(34,211,238,.7),transparent);
}
.step:last-child::after{display:none}

/* ============ 场景区 ============ */
.scene-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.scene{
  border-radius:var(--radius-md);overflow:hidden;border:1px solid var(--line);
  background:linear-gradient(160deg,rgba(20,32,58,.78),rgba(10,16,32,.56));
  transition:transform .26s ease,border-color .26s ease;
}
.scene:hover{transform:translateY(-3px);border-color:var(--line-strong)}
.scene img{height:150px;width:100%;object-fit:cover}
.scene .body{padding:22px}
.scene h3{margin:0 0 8px;font-size:17px}
.scene p{margin:0;font-size:14.4px;color:var(--text-1)}

/* ============ 数据条 ============ */
.metrics{
  display:grid;grid-template-columns:repeat(4,1fr);gap:18px;
  padding:32px;border-radius:var(--radius-lg);
  border:1px solid var(--line);
  background:linear-gradient(140deg,rgba(20,32,58,.72),rgba(9,14,28,.58));
  backdrop-filter:blur(14px);
}
.metric b{display:block;font-size:30px;line-height:1.15;letter-spacing:-.02em;color:#fff}
.metric b em{font-style:normal;font-size:17px;color:var(--secondary);margin-left:3px}
.metric span{font-size:13.5px;color:var(--text-2)}

/* ============ FAQ ============ */
.faq{display:grid;gap:14px;max-width:920px;margin:0 auto}
.faq-item{
  border-radius:18px;border:1px solid var(--line);
  background:linear-gradient(150deg,rgba(20,32,58,.72),rgba(10,16,32,.52));
  backdrop-filter:blur(14px);
  overflow:hidden;transition:border-color .25s ease,box-shadow .25s ease;
}
.faq-item.is-open{border-color:rgba(34,211,238,.42);box-shadow:0 0 0 1px rgba(34,211,238,.16),0 16px 40px rgba(3,8,20,.5)}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:18px;
  background:transparent;border:0;color:var(--text-0);
  text-align:left;padding:22px 24px;font-size:16.5px;font-weight:600;line-height:1.5;
}
.faq-item.is-open .faq-q{color:#fff}
.faq-icon{
  flex:none;width:28px;height:28px;border-radius:9px;display:grid;place-items:center;
  background:rgba(34,211,238,.14);border:1px solid rgba(34,211,238,.3);
  color:#9DEBFA;font-size:16px;transition:transform .3s ease;
}
.faq-item.is-open .faq-icon{transform:rotate(45deg)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .38s ease}
.faq-a p{margin:0;padding:0 24px 24px;color:var(--text-1);font-size:15px;border-left:2px solid rgba(34,211,238,.5);margin-left:24px;padding-left:18px;padding-right:24px}

/* ============ CTA & 表单 ============ */
.cta-panel{
  display:grid;grid-template-columns:1fr 1fr;gap:40px;
  padding:44px;border-radius:28px;
  border:1px solid var(--line-strong);
  background:linear-gradient(140deg,rgba(20,32,58,.86),rgba(9,14,28,.62));
  backdrop-filter:blur(18px);
  box-shadow:var(--shadow-card);
}
.cta-panel h2{font-size:clamp(1.6rem,3vw,2.2rem);margin:14px 0 14px;line-height:1.24}
.cta-panel p{color:var(--text-1);margin:0 0 18px;font-size:15.6px}
.cta-list{list-style:none;margin:0;padding:0;display:grid;gap:12px}
.cta-list li{display:flex;gap:10px;align-items:flex-start;font-size:14.8px;color:var(--text-1)}
.cta-list li i{
  flex:none;width:20px;height:20px;border-radius:7px;display:grid;place-items:center;
  background:rgba(52,211,153,.16);color:#8EF0C6;font-style:normal;font-size:12px;margin-top:4px;
}
.form{display:grid;gap:16px}
.field{display:grid;gap:8px}
.field label{font-size:14px;color:var(--text-1)}
.field input,.field textarea{
  width:100%;border-radius:14px;padding:13px 16px;
  background:rgba(8,14,28,.72);
  border:1px solid var(--line);color:var(--text-0);
  transition:border-color .22s ease,box-shadow .22s ease,background .22s ease;
  font-size:15px;
}
.field input::placeholder,.field textarea::placeholder{color:var(--text-2)}
.field input:focus,.field textarea:focus{
  outline:none;border-color:rgba(34,211,238,.7);
  box-shadow:0 0 0 3px rgba(34,211,238,.16);
  background:rgba(8,14,28,.9);
}
.field textarea{min-height:112px;resize:vertical}
.check{display:flex;gap:10px;align-items:flex-start;font-size:13.6px;color:var(--text-2)}
.check input{width:18px;height:18px;margin-top:3px;accent-color:#22D3EE}
.form-tip{font-size:13px;color:var(--text-2);margin:0}
.form-msg{display:none;font-size:13.6px;color:#8EF0C6;background:rgba(52,211,153,.12);border:1px solid rgba(52,211,153,.32);padding:10px 14px;border-radius:12px}
.form-msg.is-on{display:block}

/* ============ 页脚 ============ */
.site-footer{
  margin-top:60px;padding:64px 0 28px;
  border-top:1px solid var(--line);
  background:linear-gradient(180deg,rgba(6,10,22,.4),rgba(6,10,22,.95));
  position:relative;
}
.site-footer::before{
  content:"";position:absolute;top:-1px;left:12%;right:12%;height:1px;
  background:linear-gradient(90deg,transparent,rgba(34,211,238,.7),transparent);
}
.foot-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.1fr;gap:36px}
.foot-brand p{color:var(--text-2);font-size:14.4px;margin:18px 0 0;max-width:340px}
.site-footer h4{font-size:15px;margin:0 0 16px;color:#fff}
.site-footer ul{list-style:none;margin:0;padding:0;display:grid;gap:10px}
.site-footer ul li,.site-footer ul a{font-size:14.2px;color:var(--text-2)}
.site-footer ul a:hover{color:var(--secondary)}
.foot-bottom{
  margin-top:44px;padding-top:22px;border-top:1px solid rgba(120,170,255,.12);
  display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;
  font-size:13.2px;color:var(--text-2);
}

/* ============ 浮动 CTA ============ */
.float-cta{
  position:fixed;right:24px;bottom:26px;z-index:70;
  display:inline-flex;align-items:center;gap:10px;
  padding:13px 22px;border-radius:999px;
  font-size:14.6px;font-weight:600;color:#04121F;
  background:linear-gradient(120deg,#2563EB,#22D3EE);
  box-shadow:0 0 0 1px rgba(34,211,238,.45),0 14px 34px rgba(34,211,238,.3);
  animation:pulseGlow 3.2s ease-in-out infinite;
}
.float-cta:hover{transform:translateY(-2px)}
@keyframes pulseGlow{
  0%,100%{box-shadow:0 0 0 1px rgba(34,211,238,.45),0 14px 34px rgba(34,211,238,.24)}
  50%{box-shadow:0 0 0 1px rgba(34,211,238,.6),0 18px 44px rgba(34,211,238,.4)}
}

/* ============ 响应式 ============ */
@media (max-width:1180px){
  .nav-links a{padding:8px 11px;font-size:14px}
  .hero-inner{gap:34px}
}
@media (max-width:1024px){
  .nav-links,.nav-cta{display:none}
  .nav-toggle{display:inline-flex;margin-left:auto}
  .hero-inner{grid-template-columns:1fr;padding:40px 0 56px}
  .hero-visual img{height:250px}
  .bento{grid-template-columns:1fr}
  .steps{grid-template-columns:repeat(2,1fr)}
  .step::after{display:none}
  .scene-grid{grid-template-columns:repeat(2,1fr)}
  .metrics{grid-template-columns:repeat(2,1fr);gap:26px}
  .cta-panel{grid-template-columns:1fr;padding:34px}
  .foot-grid{grid-template-columns:1fr 1fr;gap:30px}
  .rail-nav{position:static;margin-bottom:14px}
  .section{padding:72px 0}
}
@media (max-width:768px){
  .shell{padding:0 16px}
  .nav-wrap{padding:0 16px;top:10px}
  .hero-inner{padding:28px 0 44px}
  .hero h1{font-size:clamp(1.85rem,7vw,2.4rem)}
  .hero .lead{font-size:16px}
  .stat{flex:1 1 100%}
  .gift-card{flex:0 0 282px}
  .scene-grid{grid-template-columns:1fr}
  .steps{grid-template-columns:1fr}
  .foot-grid{grid-template-columns:1fr}
  .float-cta{
    right:16px;left:16px;bottom:14px;justify-content:center;
    border-radius:16px;padding:14px 18px;
  }
  .foot-bottom{flex-direction:column}
}
@media (max-width:520px){
  .section{padding:56px 0}
  .panel,.cta-panel{padding:22px}
  .metrics{padding:22px}
  .metric b{font-size:25px}
  .faq-q{padding:18px;font-size:15.4px}
  .faq-a p{margin-left:18px;padding-left:14px;padding-right:18px}
  .btn{padding:11px 18px;font-size:14.4px}
}

/* roulang page: category4 */
:root{
  --bg-0:#060A16;
  --bg-1:#0B1224;
  --surface:rgba(16,26,48,.72);
  --surface-2:rgba(20,32,58,.82);
  --line:rgba(120,170,255,.16);
  --line-strong:rgba(120,170,255,.34);
  --primary:#2F7DFF;
  --secondary:#22D3EE;
  --accent:#FFB020;
  --success:#34D399;
  --text-0:#F4F8FF;
  --text-1:#B7C4D8;
  --text-2:#7C8CA6;
  --radius-lg:24px;
  --radius-md:18px;
  --radius-sm:14px;
  --shadow-card:0 18px 48px rgba(3,8,20,.55);
  --shadow-glow:0 0 0 1px rgba(34,211,238,.45),0 10px 30px rgba(34,211,238,.25);
  --shell:1240px;
}
*,*::before,*::after{box-sizing:border-box;}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%;}
body{
  margin:0;
  background:var(--bg-0);
  color:var(--text-0);
  font-family:"Noto Sans SC","PingFang SC","Microsoft YaHei","Helvetica Neue",Arial,sans-serif;
  font-size:17px;
  line-height:1.8;
  letter-spacing:.01em;
  overflow-x:hidden;
}
body::before{
  content:"";
  position:fixed;
  inset:0;
  background:
    radial-gradient(900px 520px at 12% -8%,rgba(47,125,255,.20),transparent 62%),
    radial-gradient(760px 460px at 92% 4%,rgba(34,211,238,.14),transparent 60%),
    linear-gradient(180deg,rgba(6,10,22,0) 0%,rgba(6,10,22,.6) 100%);
  pointer-events:none;
  z-index:0;
}
body::after{
  content:"";
  position:fixed;
  inset:0;
  background-image:
    linear-gradient(rgba(120,170,255,.045) 1px,transparent 1px),
    linear-gradient(90deg,rgba(120,170,255,.045) 1px,transparent 1px);
  background-size:64px 64px;
  mask-image:radial-gradient(1000px 700px at 50% 0%,#000 12%,transparent 78%);
  -webkit-mask-image:radial-gradient(1000px 700px at 50% 0%,#000 12%,transparent 78%);
  pointer-events:none;
  z-index:0;
}
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;transition:color .22s ease,opacity .22s ease;}
ul{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4{margin:0;line-height:1.22;font-weight:700;letter-spacing:-.01em;}
p{margin:0;}
button{font-family:inherit;cursor:pointer;}
.shell{width:100%;max-width:var(--shell);margin:0 auto;padding:0 24px;position:relative;z-index:2;}

/* ============ 导航 ============ */
.nav-wrap{position:fixed;top:0;left:0;right:0;z-index:60;padding:18px 0;transition:padding .28s ease,background .28s ease;}
.nav-wrap.is-scrolled{padding:10px 0;background:linear-gradient(180deg,rgba(6,10,22,.86),rgba(6,10,22,.42));backdrop-filter:blur(14px);}
.pill-nav{
  display:flex;align-items:center;gap:18px;
  padding:10px 12px 10px 18px;
  border-radius:999px;
  background:rgba(8,14,28,.55);
  border:1px solid var(--line);
  backdrop-filter:blur(18px);
  box-shadow:0 12px 36px rgba(3,8,20,.45);
  transition:background .3s ease,border-color .3s ease,box-shadow .3s ease;
}
.nav-wrap.is-scrolled .pill-nav{background:rgba(8,14,28,.82);border-color:var(--line-strong);box-shadow:0 16px 44px rgba(3,8,20,.6),0 0 0 1px rgba(34,211,238,.12);}
.brand{display:inline-flex;align-items:center;gap:10px;font-weight:700;font-size:17px;white-space:nowrap;color:var(--text-0);}
.brand-mark{
  width:32px;height:32px;border-radius:11px;display:grid;place-items:center;
  background:linear-gradient(135deg,#2563EB,#22D3EE);
  color:#04101F;font-weight:800;font-size:16px;
  box-shadow:0 0 0 1px rgba(34,211,238,.45),0 6px 18px rgba(34,211,238,.28);
}
.nav-links{display:flex;align-items:center;gap:4px;margin-left:auto;flex-wrap:nowrap;}
.nav-links li a{
  display:inline-block;padding:9px 15px;border-radius:999px;
  font-size:15px;color:var(--text-1);white-space:nowrap;
  transition:color .2s ease,background .2s ease,box-shadow .2s ease;
}
.nav-links li a:hover{color:var(--text-0);background:rgba(120,170,255,.10);}
.nav-links li a.is-active{
  color:#EAF3FF;background:rgba(47,125,255,.20);
  box-shadow:inset 0 0 0 1px rgba(120,170,255,.34);
}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:12px 24px;border-radius:999px;border:1px solid transparent;
  font-size:15px;font-weight:600;line-height:1.2;
  transition:transform .2s ease,box-shadow .25s ease,background .25s ease,border-color .25s ease,filter .25s ease;
}
.btn-primary{
  background:linear-gradient(135deg,#2563EB,#22D3EE);
  color:#04101F;
  box-shadow:var(--shadow-glow);
}
.btn-primary:hover{transform:translateY(-2px);filter:brightness(1.08);box-shadow:0 0 0 1px rgba(34,211,238,.55),0 16px 40px rgba(34,211,238,.34);}
.btn-primary:active{transform:translateY(1px);}
.btn-ghost{
  background:rgba(255,255,255,.04);
  border-color:var(--line-strong);
  color:var(--text-0);
  backdrop-filter:blur(12px);
}
.btn-ghost:hover{background:rgba(120,170,255,.14);border-color:rgba(120,170,255,.55);transform:translateY(-2px);}
.btn:focus-visible,a:focus-visible,button:focus-visible,summary:focus-visible,input:focus-visible{outline:2px solid var(--secondary);outline-offset:3px;}
.nav-cta{padding:11px 22px;flex-shrink:0;}
.nav-toggle{
  display:none;width:42px;height:42px;border-radius:999px;
  align-items:center;justify-content:center;
  background:rgba(255,255,255,.05);border:1px solid var(--line-strong);color:var(--text-0);
}
.drawer{
  display:none;flex-direction:column;gap:6px;margin-top:12px;padding:16px;
  border-radius:22px;background:rgba(8,14,28,.94);border:1px solid var(--line);
  backdrop-filter:blur(18px);box-shadow:0 20px 50px rgba(3,8,20,.6);
}
.drawer.is-open{display:flex;}
.drawer a{padding:12px 16px;border-radius:14px;color:var(--text-1);font-size:16px;}
.drawer a.is-active{background:rgba(47,125,255,.20);color:#EAF3FF;}
.drawer a.btn{margin-top:6px;color:#04101F;}

/* ============ Hero ============ */
.hero-cat{
  position:relative;padding:170px 0 96px;overflow:hidden;
  background-image:linear-gradient(180deg,rgba(6,10,22,.72),rgba(6,10,22,.94)),url('/assets/images/backpic/back-3.webp');
  background-size:cover;background-position:center;
}
.hero-cat::after{
  content:"";position:absolute;left:50%;bottom:-160px;transform:translateX(-50%);
  width:900px;height:340px;border-radius:50%;
  background:radial-gradient(closest-side,rgba(34,211,238,.22),transparent 72%);
  filter:blur(10px);pointer-events:none;
}
.crumb{display:flex;align-items:center;gap:10px;font-size:14px;color:var(--text-2);margin-bottom:22px;flex-wrap:wrap;}
.crumb a:hover{color:var(--secondary);}
.hero-cat-grid{display:grid;grid-template-columns:1.08fr .92fr;gap:56px;align-items:center;}
.tag{
  display:inline-flex;align-items:center;gap:8px;
  padding:7px 14px;border-radius:999px;font-size:13px;font-weight:600;
  background:rgba(34,211,238,.12);color:#9CE9F6;
  border:1px solid rgba(34,211,238,.30);
}
h1.hero-title{
  font-size:clamp(2.4rem,5.2vw,4.05rem);
  line-height:1.14;margin:22px 0 20px;letter-spacing:-.02em;
}
h1.hero-title .hl{
  background:linear-gradient(120deg,#7FB6FF,#22D3EE);
  -webkit-background-clip:text;background-clip:text;color:transparent;
}
.hero-sub{font-size:clamp(1rem,1.5vw,1.12rem);color:var(--text-1);max-width:620px;}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:32px;}
.hero-meta{display:flex;flex-wrap:wrap;gap:26px;margin-top:36px;padding-top:26px;border-top:1px solid var(--line);}
.hero-meta div span{display:block;font-size:13px;color:var(--text-2);}
.hero-meta div strong{font-size:20px;color:var(--text-0);letter-spacing:.01em;}
.hero-visual{position:relative;}
.hero-panel{
  border-radius:var(--radius-lg);
  border:1px solid var(--line);
  background:linear-gradient(160deg,rgba(20,32,58,.86),rgba(10,16,32,.62));
  backdrop-filter:blur(18px);
  box-shadow:var(--shadow-card),inset 0 1px 0 rgba(255,255,255,.06);
  overflow:hidden;
}
.hero-panel img{width:100%;height:236px;object-fit:cover;opacity:.92;}
.hero-panel-body{padding:24px 26px 28px;}
.hero-panel-body h3{font-size:1.15rem;margin-bottom:14px;}
.check-list li{display:flex;gap:12px;align-items:flex-start;padding:9px 0;border-bottom:1px dashed rgba(120,170,255,.14);font-size:15px;color:var(--text-1);}
.check-list li:last-child{border-bottom:0;}
.check-list li i{
  flex:0 0 20px;width:20px;height:20px;border-radius:50%;margin-top:5px;
  display:grid;place-items:center;font-size:12px;font-style:normal;
  background:rgba(52,211,153,.16);color:var(--success);border:1px solid rgba(52,211,153,.36);
}
.float-badge{
  position:absolute;right:-8px;bottom:-18px;
  padding:14px 20px;border-radius:18px;
  background:linear-gradient(140deg,rgba(20,32,58,.96),rgba(10,16,32,.86));
  border:1px solid var(--line-strong);backdrop-filter:blur(16px);
  box-shadow:0 18px 42px rgba(3,8,20,.6);
}
.float-badge span{display:block;font-size:12px;color:var(--text-2);}
.float-badge strong{font-size:19px;color:#8FE8F5;}

/* ============ 通用板块 ============ */
.section{padding:104px 0;position:relative;}
.section-sm{padding:72px 0;}
.sec-head{max-width:760px;margin-bottom:52px;}
.sec-head h2{font-size:clamp(1.75rem,3.2vw,2.6rem);margin:16px 0 16px;}
.sec-head p{color:var(--text-1);font-size:16.5px;}
.eyebrow{font-size:13px;letter-spacing:.16em;text-transform:uppercase;color:var(--secondary);font-weight:700;}

/* 指标条 */
.metrics{
  display:grid;grid-template-columns:repeat(4,1fr);gap:18px;
  border-radius:var(--radius-lg);border:1px solid var(--line);
  background:linear-gradient(150deg,rgba(20,32,58,.72),rgba(10,16,32,.5));
  backdrop-filter:blur(14px);padding:8px;
}
.metric{padding:26px 22px;border-radius:18px;transition:background .25s ease;}
.metric:hover{background:rgba(120,170,255,.07);}
.metric strong{display:block;font-size:clamp(1.7rem,3vw,2.2rem);color:#9BE7F6;letter-spacing:-.02em;}
.metric span{display:block;margin-top:6px;font-size:14px;color:var(--text-2);}

/* 双栏布局 */
.two-col{display:grid;grid-template-columns:1.55fr .95fr;gap:36px;align-items:start;}
.stack{display:flex;flex-direction:column;gap:18px;}
.sec-item{
  display:grid;grid-template-columns:54px 1fr;gap:18px;
  padding:24px 26px;border-radius:var(--radius-md);
  border:1px solid var(--line);
  background:linear-gradient(150deg,rgba(20,32,58,.72),rgba(10,16,32,.5));
  transition:transform .25s ease,border-color .25s ease,box-shadow .25s ease;
}
.sec-item:hover{transform:translateY(-4px);border-color:var(--line-strong);box-shadow:0 18px 42px rgba(3,8,20,.55);}
.sec-ico{
  width:54px;height:54px;border-radius:16px;display:grid;place-items:center;
  background:rgba(47,125,255,.14);border:1px solid rgba(120,170,255,.28);
  color:#8FC0FF;font-size:22px;
}
.sec-item h3{font-size:1.14rem;margin-bottom:8px;}
.sec-item p{color:var(--text-1);font-size:15.5px;margin-bottom:12px;}
.chip-row{display:flex;flex-wrap:wrap;gap:8px;}
.chip{
  padding:5px 12px;border-radius:999px;font-size:12.5px;
  background:rgba(120,170,255,.09);border:1px solid rgba(120,170,255,.2);color:var(--text-1);
}
.chip.warn{background:rgba(255,176,32,.12);border-color:rgba(255,176,32,.32);color:#FFD48A;}
.chip.ok{background:rgba(52,211,153,.12);border-color:rgba(52,211,153,.32);color:#86E8C0;}

/* 侧栏 */
.side-card{
  position:sticky;top:104px;
  border-radius:var(--radius-lg);border:1px solid var(--line-strong);
  background:linear-gradient(160deg,rgba(20,32,58,.92),rgba(10,16,32,.72));
  backdrop-filter:blur(18px);box-shadow:var(--shadow-card),inset 0 1px 0 rgba(255,255,255,.06);
  overflow:hidden;
}
.side-card .side-head{padding:24px 26px 18px;border-bottom:1px solid var(--line);}
.side-card .side-head h3{font-size:1.2rem;margin-bottom:6px;}
.side-card .side-head p{font-size:14px;color:var(--text-2);}
.side-body{padding:22px 26px 26px;display:flex;flex-direction:column;gap:14px;}
.quick-item{
  display:flex;gap:12px;align-items:flex-start;padding:12px 14px;border-radius:14px;
  background:rgba(255,255,255,.03);border:1px solid rgba(120,170,255,.14);
  font-size:14.5px;color:var(--text-1);transition:background .22s ease,border-color .22s ease;
}
.quick-item:hover{background:rgba(120,170,255,.09);border-color:var(--line-strong);}
.quick-item b{color:var(--text-0);font-weight:600;}
.dot{flex:0 0 8px;width:8px;height:8px;border-radius:50%;background:var(--secondary);margin-top:10px;box-shadow:0 0 10px rgba(34,211,238,.8);}
.side-cta{padding:0 26px 28px;}
.side-cta .btn{width:100%;}
.side-note{margin-top:12px;font-size:12.5px;color:var(--text-2);text-align:center;}

/* 流程时间线 */
.flow{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;margin-top:8px;}
.flow-step{
  position:relative;padding:28px 24px;border-radius:var(--radius-md);
  border:1px solid var(--line);background:rgba(16,26,48,.6);
  transition:transform .25s ease,border-color .25s ease;
}
.flow-step:hover{transform:translateY(-4px);border-color:var(--line-strong);}
.flow-step b{
  display:inline-grid;place-items:center;width:38px;height:38px;border-radius:12px;
  background:linear-gradient(135deg,#2563EB,#22D3EE);color:#04101F;font-size:15px;margin-bottom:16px;
}
.flow-step h3{font-size:1.05rem;margin-bottom:8px;}
.flow-step p{font-size:14.5px;color:var(--text-1);}

/* FAQ */
.faq-wrap{max-width:920px;margin:0 auto;display:flex;flex-direction:column;gap:14px;}
details.faq{
  border-radius:var(--radius-md);border:1px solid var(--line);
  background:linear-gradient(150deg,rgba(20,32,58,.72),rgba(10,16,32,.5));
  backdrop-filter:blur(14px);overflow:hidden;transition:border-color .25s ease,box-shadow .25s ease;
}
details.faq[open]{border-color:rgba(34,211,238,.42);box-shadow:0 16px 40px rgba(3,8,20,.55);}
details.faq summary{
  list-style:none;cursor:pointer;padding:22px 58px 22px 24px;position:relative;
  font-size:1.05rem;font-weight:600;color:var(--text-0);
}
details.faq summary::-webkit-details-marker{display:none;}
details.faq summary::after{
  content:"+";position:absolute;right:22px;top:50%;transform:translateY(-50%);
  width:28px;height:28px;border-radius:50%;display:grid;place-items:center;
  background:rgba(120,170,255,.12);border:1px solid rgba(120,170,255,.24);
  color:#9BE7F6;font-size:17px;line-height:1;transition:transform .28s ease,background .28s ease;
}
details.faq[open] summary::after{content:"−";transform:translateY(-50%) rotate(180deg);background:rgba(34,211,238,.2);}
details.faq .faq-body{padding:0 24px 24px;border-left:2px solid rgba(34,211,238,.55);margin-left:24px;color:var(--text-1);font-size:15.5px;}

/* CTA */
.cta-band{
  position:relative;border-radius:28px;overflow:hidden;
  border:1px solid var(--line-strong);
  background-image:linear-gradient(140deg,rgba(11,18,36,.90),rgba(6,10,22,.86)),url('/assets/images/backpic/back-1.webp');
  background-size:cover;background-position:center;
  padding:64px 56px;
  box-shadow:var(--shadow-card);
}
.cta-band::before{
  content:"";position:absolute;right:-120px;top:-120px;width:420px;height:420px;border-radius:50%;
  background:radial-gradient(closest-side,rgba(34,211,238,.28),transparent 72%);
}
.cta-inner{position:relative;z-index:2;display:grid;grid-template-columns:1.3fr .7fr;gap:40px;align-items:center;}
.cta-inner h2{font-size:clamp(1.7rem,3vw,2.4rem);margin-bottom:16px;}
.cta-inner p{color:var(--text-1);max-width:620px;}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;justify-content:flex-end;}

/* 表单 */
.form-card{
  border-radius:var(--radius-lg);border:1px solid var(--line);
  background:linear-gradient(160deg,rgba(20,32,58,.82),rgba(10,16,32,.62));
  backdrop-filter:blur(16px);padding:28px;box-shadow:var(--shadow-card);
}
.field{margin-bottom:16px;}
.field label{display:block;font-size:13.5px;color:var(--text-1);margin-bottom:8px;}
.field input,.field textarea{
  width:100%;padding:13px 16px;border-radius:var(--radius-sm);
  background:rgba(6,10,22,.6);border:1px solid var(--line);
  color:var(--text-0);font-size:15px;font-family:inherit;
  transition:border-color .22s ease,box-shadow .22s ease;
}
.field input::placeholder,.field textarea::placeholder{color:#5F6E88;}
.field input:focus,.field textarea:focus{
  outline:none;border-color:rgba(34,211,238,.6);
  box-shadow:0 0 0 3px rgba(34,211,238,.16);
}
.field textarea{min-height:104px;resize:vertical;}
.agree{display:flex;gap:10px;align-items:flex-start;font-size:13px;color:var(--text-2);margin:6px 0 18px;}
.agree input{width:16px;height:16px;margin-top:4px;accent-color:#22D3EE;}
.form-hint{font-size:12.5px;color:var(--text-2);margin-top:12px;text-align:center;}

/* 页脚 */
.site-footer{
  margin-top:40px;padding:72px 0 32px;position:relative;
  border-top:1px solid rgba(120,170,255,.16);
  background:linear-gradient(180deg,rgba(6,10,22,.4),rgba(6,10,22,.92));
}
.site-footer::before{
  content:"";position:absolute;top:-1px;left:12%;right:12%;height:1px;
  background:linear-gradient(90deg,transparent,rgba(34,211,238,.65),transparent);
}
.foot-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:40px;}
.foot-brand p{color:var(--text-2);font-size:14.5px;margin-top:16px;max-width:360px;}
.site-footer h4{font-size:15px;margin-bottom:18px;color:var(--text-0);}
.site-footer ul li{margin-bottom:11px;}
.site-footer ul li a,.site-footer ul li span{font-size:14.5px;color:var(--text-2);}
.site-footer ul li a:hover{color:var(--secondary);}
.foot-bottom{
  margin-top:52px;padding-top:22px;border-top:1px solid rgba(120,170,255,.12);
  display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13.5px;color:var(--text-2);
}

/* 浮动 CTA */
.float-cta{
  position:fixed;right:26px;bottom:26px;z-index:55;
  display:inline-flex;align-items:center;gap:10px;
  padding:14px 22px;border-radius:999px;
  background:linear-gradient(135deg,#2563EB,#22D3EE);color:#04101F;font-weight:700;font-size:15px;
  box-shadow:var(--shadow-glow);
  transition:transform .22s ease,box-shadow .3s ease,filter .22s ease;
}
.float-cta:hover{transform:translateY(-2px);filter:brightness(1.08);box-shadow:0 0 0 1px rgba(34,211,238,.6),0 18px 44px rgba(34,211,238,.36);}
.float-cta.is-boost{box-shadow:0 0 0 1px rgba(34,211,238,.7),0 22px 54px rgba(34,211,238,.45);}

/* 响应式 */
@media (max-width:1100px){
  .nav-links{display:none;}
  .nav-toggle{display:inline-flex;}
  .nav-cta{display:none;}
  .hero-cat-grid{grid-template-columns:1fr;gap:44px;}
  .two-col{grid-template-columns:1fr;}
  .side-card{position:static;}
  .flow{grid-template-columns:repeat(2,1fr);}
  .cta-inner{grid-template-columns:1fr;}
  .cta-actions{justify-content:flex-start;}
  .foot-grid{grid-template-columns:1fr 1fr;gap:32px;}
}
@media (max-width:768px){
  body{font-size:16px;}
  .shell{padding:0 18px;}
  .hero-cat{padding:140px 0 72px;}
  .section{padding:72px 0;}
  .section-sm{padding:56px 0;}
  .metrics{grid-template-columns:repeat(2,1fr);}
  .metric{padding:20px 16px;}
  .sec-item{grid-template-columns:44px 1fr;padding:20px;gap:14px;}
  .sec-ico{width:44px;height:44px;font-size:18px;border-radius:14px;}
  .cta-band{padding:40px 24px;border-radius:22px;}
  .float-badge{position:static;margin-top:16px;display:inline-block;}
  .flow{grid-template-columns:1fr;}
  .faq-wrap{gap:12px;}
  details.faq summary{padding:18px 52px 18px 20px;font-size:1rem;}
  details.faq .faq-body{margin-left:18px;padding:0 18px 20px;}
  .float-cta{
    left:16px;right:16px;bottom:16px;justify-content:center;border-radius:16px;padding:14px 18px;
  }
}
@media (max-width:520px){
  h1.hero-title{font-size:clamp(2rem,8vw,2.5rem);}
  .hero-meta{gap:18px;}
  .foot-grid{grid-template-columns:1fr;}
  .foot-bottom{flex-direction:column;}
  .hero-panel img{height:186px;}
}