/* roulang page: index */
:root{
  --bg-0:#070E18;
  --bg-1:#0C1724;
  --bg-2:#12202E;
  --primary:#1E5AA8;
  --accent:#35E0C8;
  --accent-2:#7FF3E3;
  --accent-soft:rgba(53,224,200,.12);
  --data:#FFB547;
  --data-soft:rgba(255,181,71,.12);
  --ink:#E8F0F7;
  --ink-2:#B9C9D8;
  --ink-3:#7F93A6;
  --line:rgba(255,255,255,.10);
  --glass:rgba(255,255,255,.06);
  --glass-line:rgba(255,255,255,.14);
  --r-card:16px;
  --r-sm:12px;
  --r-btn:999px;
  --shadow:0 10px 30px rgba(0,0,0,.35);
  --glow:0 0 24px rgba(53,224,200,.22);
  --container:1200px;
  --sec-y:96px;
  --t:200ms ease-out;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body{
  margin:0;
  background:var(--bg-0);
  color:var(--ink);
  font-family:system-ui,"PingFang SC","HarmonyOS Sans SC","Source Han Sans SC","Microsoft YaHei",sans-serif;
  font-size:16px;
  line-height:1.8;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;display:block;border-style:none;}
a{color:var(--accent);text-decoration:none;transition:color var(--t);}
a:hover{color:var(--accent-2);}
h1,h2,h3,h4{margin:0 0 .5em;line-height:1.3;font-weight:700;color:var(--ink);letter-spacing:.2px;}
p{margin:0 0 1em;color:var(--ink-2);}
ul,ol{margin:0;padding:0;list-style:none;}
button{font-family:inherit;}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px;border-radius:6px;}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 24px;}
.section{padding:var(--sec-y) 0;position:relative;}
.section::before{
  content:"";position:absolute;top:0;left:50%;transform:translateX(-50%);
  width:min(100%,var(--container));height:1px;
  background:linear-gradient(90deg,transparent,rgba(53,224,200,.28),transparent);
}
.section-alt{background:var(--bg-1);}
.eyebrow{
  display:inline-block;font-size:12.5px;letter-spacing:.16em;text-transform:uppercase;
  color:var(--accent);background:var(--accent-soft);border:1px solid rgba(53,224,200,.28);
  padding:5px 12px;border-radius:999px;margin-bottom:16px;font-weight:600;
}
.section-head{max-width:760px;margin-bottom:48px;}
.section-head.center{margin-left:auto;margin-right:auto;text-align:center;}
.section-title{font-size:clamp(24px,2.6vw,34px);margin-bottom:14px;}
.section-desc{font-size:16px;color:var(--ink-2);margin:0;}

/* ===== 顶部信息条 ===== */
.topbar{background:#050B13;border-bottom:1px solid var(--line);font-size:12.5px;color:var(--ink-3);}
.topbar-inner{display:flex;align-items:center;justify-content:space-between;gap:16px;min-height:36px;padding-top:6px;padding-bottom:6px;}
.topbar-left{display:flex;align-items:center;gap:10px;min-width:0;}
.topbar-left .dot{width:7px;height:7px;border-radius:50%;background:var(--accent);box-shadow:0 0 10px rgba(53,224,200,.7);flex:0 0 auto;}
.topbar-left span{overflow:hidden;text-overflow:ellipsis;white-space:nowrap;}
.topbar-right{display:flex;align-items:center;gap:18px;flex:0 0 auto;}
.topbar-right a{color:var(--ink-2);font-size:12.5px;}
.topbar-right a:hover{color:var(--accent);}

/* ===== 主导航 ===== */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(9,17,28,.82);
  -webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px);
  border-bottom:1px solid var(--line);
}
.nav-inner{display:flex;align-items:center;justify-content:space-between;gap:20px;min-height:64px;}
.brand{display:flex;flex-direction:column;line-height:1.15;color:var(--ink);text-decoration:none;padding:6px 0;}
.brand-main{font-size:16px;font-weight:700;letter-spacing:.4px;color:var(--ink);}
.brand-sub{font-size:11px;letter-spacing:.34em;color:var(--accent);text-transform:uppercase;}
.brand:hover .brand-main{color:var(--accent);}
.site-nav{display:flex;align-items:center;gap:26px;}
.nav-list{display:flex;align-items:center;gap:6px;}
.nav-link{
  display:inline-flex;align-items:center;min-height:44px;padding:0 12px;
  font-size:15px;color:var(--ink-2);border-bottom:2px solid transparent;
  transition:color var(--t),border-color var(--t);
}
.nav-link:hover{color:var(--ink);}
.nav-link.is-active{color:var(--accent);border-bottom-color:var(--accent);}
.nav-cta{
  display:inline-flex;align-items:center;gap:8px;min-height:42px;padding:0 20px;
  border-radius:var(--r-btn);font-size:14.5px;font-weight:700;color:#05121C;
  background:linear-gradient(120deg,var(--accent),#22C3AE);
  box-shadow:var(--glow);white-space:nowrap;
  transition:transform var(--t),box-shadow var(--t),filter var(--t);
}
.nav-cta:hover{color:#05121C;transform:translateY(-2px);filter:brightness(1.08);box-shadow:0 0 32px rgba(53,224,200,.38);}
.nav-toggle{
  display:none;width:46px;height:46px;border-radius:12px;border:1px solid var(--glass-line);
  background:var(--glass);cursor:pointer;padding:0;position:relative;
}
.nav-toggle span{
  position:absolute;left:13px;right:13px;height:2px;background:var(--ink);border-radius:2px;
  transition:transform var(--t),opacity var(--t);
}
.nav-toggle span:nth-child(1){top:15px;}
.nav-toggle span:nth-child(2){top:22px;}
.nav-toggle span:nth-child(3){top:29px;}
.nav-toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(7px) rotate(45deg);}
.nav-toggle[aria-expanded="true"] span:nth-child(2){opacity:0;}
.nav-toggle[aria-expanded="true"] span:nth-child(3){transform:translateY(-7px) rotate(-45deg);}

/* ===== Hero ===== */
.hero{position:relative;overflow:hidden;padding:96px 0 88px;}
.hero-bg{
  position:absolute;inset:0;
  background-image:linear-gradient(100deg,rgba(7,14,24,.95) 0%,rgba(7,14,24,.88) 44%,rgba(7,14,24,.42) 100%),url('/assets/images/backpic/back-1.webp');
  background-size:cover;background-position:center;
}
.hero-bg::after{
  content:"";position:absolute;inset:0;opacity:.06;
  background-image:linear-gradient(rgba(255,255,255,.7) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.7) 1px,transparent 1px);
  background-size:56px 56px;
}
.hero-inner{position:relative;z-index:2;}
.hero h1{font-size:clamp(30px,4.6vw,48px);max-width:720px;margin-bottom:20px;}
.hero-kicker{
  display:inline-flex;align-items:center;gap:8px;font-size:13px;color:var(--accent);
  background:var(--accent-soft);border:1px solid rgba(53,224,200,.28);
  border-radius:999px;padding:6px 14px;margin-bottom:20px;font-weight:600;
}
.hero-sub{max-width:660px;font-size:16.5px;color:var(--ink-2);margin-bottom:30px;}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:28px;}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:48px;padding:0 26px;border-radius:var(--r-btn);font-size:15.5px;font-weight:700;
  border:1px solid transparent;cursor:pointer;text-align:center;
  transition:transform var(--t),box-shadow var(--t),filter var(--t),border-color var(--t),background var(--t);
}
.btn-primary{background:linear-gradient(120deg,var(--accent),#22C3AE);color:#05121C;box-shadow:var(--glow);}
.btn-primary:hover{color:#05121C;transform:translateY(-2px);filter:brightness(1.08);box-shadow:0 0 34px rgba(53,224,200,.4);}
.btn-primary:active{transform:translateY(0);box-shadow:inset 0 2px 8px rgba(0,0,0,.25);}
.btn-ghost{background:var(--glass);border-color:var(--glass-line);color:var(--ink);}
.btn-ghost:hover{color:var(--ink);border-color:rgba(53,224,200,.6);transform:translateY(-2px);}
.hero-points{display:flex;flex-wrap:wrap;gap:12px 26px;}
.hero-points li{display:flex;align-items:center;gap:8px;font-size:14px;color:var(--ink-2);}
.hero-points i{color:var(--accent);font-size:13px;}
.hero-panel{
  background:var(--glass);border:1px solid var(--glass-line);border-radius:var(--r-card);
  padding:26px;box-shadow:var(--shadow);
}
.hero-panel h2{font-size:16px;margin-bottom:18px;color:var(--ink);}
.hero-panel h2 i{color:var(--accent);margin-right:8px;}
.hero-list li{
  display:flex;gap:12px;padding:12px 0;border-bottom:1px dashed var(--line);font-size:14.5px;color:var(--ink-2);
}
.hero-list li:last-child{border-bottom:none;padding-bottom:0;}
.hero-list b{display:block;color:var(--ink);font-size:14.5px;font-weight:600;}
.hero-list i{color:var(--accent);margin-top:6px;font-size:13px;}
.hero-list small{color:var(--ink-3);font-size:13px;}

/* ===== 指标看板 ===== */
.kpi-card{
  height:100%;background:linear-gradient(180deg,rgba(255,255,255,.08),rgba(255,255,255,.03));
  border:1px solid var(--glass-line);border-radius:var(--r-card);padding:24px;
  position:relative;overflow:hidden;box-shadow:var(--shadow);
  transition:transform var(--t),border-color var(--t);
}
.kpi-card::before{
  content:"";position:absolute;top:0;left:0;right:0;height:2px;
  background:linear-gradient(90deg,transparent,var(--accent),transparent);opacity:.7;
}
.kpi-card:hover{transform:translateY(-2px);border-color:rgba(53,224,200,.4);}
.kpi-num{
  font-size:clamp(30px,3.4vw,38px);font-weight:800;color:var(--ink);line-height:1.1;
  font-variant-numeric:tabular-nums;letter-spacing:-.5px;
}
.kpi-num .unit{font-size:15px;font-weight:600;color:var(--accent);margin-left:6px;}
.kpi-text{font-size:13.5px;color:var(--ink-3);margin:12px 0 16px;line-height:1.6;min-height:44px;}
.kpi-bar{height:4px;border-radius:999px;background:rgba(255,255,255,.09);overflow:hidden;}
.kpi-bar span{display:block;height:100%;border-radius:999px;background:linear-gradient(90deg,var(--accent),var(--data));}

/* ===== 服务矩阵 ===== */
.svc-card{
  height:100%;display:flex;flex-direction:column;background:var(--bg-2);
  border:1px solid var(--line);border-radius:var(--r-card);padding:24px;
  transition:transform var(--t),border-color var(--t),box-shadow var(--t);
}
.svc-card:hover{transform:translateY(-3px);border-color:rgba(53,224,200,.4);box-shadow:0 14px 34px rgba(0,0,0,.4);}
.svc-icon{
  width:40px;height:40px;border-radius:10px;display:flex;align-items:center;justify-content:center;
  background:rgba(30,90,168,.28);border:1px solid rgba(53,224,200,.35);color:var(--accent);
  font-size:16px;margin-bottom:16px;flex:0 0 auto;
}
.svc-card h3{font-size:20px;margin-bottom:10px;}
.svc-card p{font-size:14.5px;color:var(--ink-2);margin-bottom:16px;flex:1 1 auto;}
.svc-link{font-size:14px;font-weight:600;color:var(--accent);display:inline-flex;align-items:center;gap:6px;}
.svc-link i{transition:transform var(--t);}
.svc-card:hover .svc-link i{transform:translateX(4px);}
.svc-media{border-radius:var(--r-sm);overflow:hidden;margin-bottom:18px;aspect-ratio:16/9;background:var(--bg-1);}
.svc-media img{width:100%;height:100%;object-fit:cover;transition:transform var(--t);}
.svc-card:hover .svc-media img{transform:scale(1.03);}
.svc-lg{flex-direction:row;gap:24px;align-items:center;}
.svc-lg .svc-body{flex:1 1 auto;}
.svc-lg .svc-media{margin-bottom:0;flex:0 0 44%;}
.svc-sm{padding:22px;}
.svc-sm h3{font-size:17px;}
.svc-sm .svc-icon{width:36px;height:36px;border-radius:9px;font-size:14px;margin-bottom:14px;}
.svc-grid .cell{margin-bottom:24px;}

/* ===== 结果对比 ===== */
.cmp-col{
  background:var(--bg-2);border:1px solid var(--line);border-radius:var(--r-card);
  padding:26px;height:100%;
}
.cmp-col.is-accent{border-color:rgba(53,224,200,.35);box-shadow:0 0 26px rgba(53,224,200,.1);}
.cmp-head{display:flex;align-items:center;gap:10px;margin-bottom:22px;}
.cmp-head h3{font-size:17px;margin:0;}
.cmp-tag{font-size:12.5px;font-weight:600;padding:4px 10px;border-radius:999px;}
.cmp-tag.a{background:var(--data-soft);color:var(--data);}
.cmp-tag.b{background:var(--accent-soft);color:var(--accent);}
.cmp-row{margin-bottom:20px;}
.cmp-row:last-child{margin-bottom:0;}
.cmp-label{display:block;font-size:13.5px;color:var(--ink-2);margin-bottom:8px;}
.cmp-track{height:9px;border-radius:999px;background:rgba(255,255,255,.08);overflow:hidden;}
.cmp-fill{display:block;height:100%;border-radius:999px;}
.cmp-fill.a{background:linear-gradient(90deg,rgba(255,181,71,.55),var(--data));}
.cmp-fill.b{background:linear-gradient(90deg,rgba(53,224,200,.5),var(--accent));}
.cmp-val{display:block;font-size:13px;color:var(--ink-3);margin-top:7px;font-variant-numeric:tabular-nums;}

/* ===== 内容列表 ===== */
.post-cell{margin-bottom:24px;}
.post-card{
  height:100%;display:flex;flex-direction:column;background:var(--bg-2);
  border:1px solid var(--line);border-radius:var(--r-card);overflow:hidden;
  transition:transform var(--t),border-color var(--t),box-shadow var(--t);
}
.post-card:hover{transform:translateY(-3px);border-color:rgba(53,224,200,.4);box-shadow:0 16px 36px rgba(0,0,0,.42);}
.post-cover{display:block;aspect-ratio:16/9;overflow:hidden;background:var(--bg-1);}
.post-cover img{width:100%;height:100%;object-fit:cover;transition:transform var(--t);}
.post-card:hover .post-cover img{transform:scale(1.03);}
.post-body{padding:20px 22px 24px;display:flex;flex-direction:column;flex:1 1 auto;}
.post-badge{
  align-self:flex-start;font-size:13px;font-weight:600;padding:4px 11px;border-radius:999px;
  background:var(--accent-soft);color:var(--accent);margin-bottom:12px;
}
.post-title{font-size:18px;line-height:1.45;margin-bottom:10px;}
.post-title a{color:var(--ink);}
.post-title a:hover{color:var(--accent);}
.post-excerpt{
  font-size:14.5px;color:var(--ink-2);margin-bottom:16px;flex:1 1 auto;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.post-meta{
  display:flex;align-items:center;justify-content:space-between;gap:12px;
  font-size:13px;color:var(--ink-3);border-top:1px solid var(--line);padding-top:14px;
}
.post-meta a{font-weight:600;}
.empty-state{
  text-align:center;padding:52px 24px;background:var(--bg-2);
  border:1px dashed var(--glass-line);border-radius:var(--r-card);
}
.empty-state i{font-size:26px;color:var(--ink-3);margin-bottom:14px;display:block;}
.empty-state p{font-size:15px;color:var(--ink-2);margin-bottom:18px;}
.head-link{font-size:14.5px;font-weight:600;display:inline-flex;align-items:center;gap:8px;}
.head-link i{transition:transform var(--t);}
.head-link:hover i{transform:translateX(4px);}

/* ===== FAQ ===== */
.faq-item{
  background:var(--glass);border:1px solid var(--line);border-radius:14px;
  margin-bottom:14px;overflow:hidden;transition:border-color var(--t);
}
.faq-item[open]{border-color:rgba(53,224,200,.38);}
.faq-item summary{
  list-style:none;cursor:pointer;display:flex;align-items:center;justify-content:space-between;gap:18px;
  padding:20px 22px;font-size:17px;font-weight:600;color:var(--ink);line-height:1.6;
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary:hover{color:var(--accent);}
.faq-icon{
  flex:0 0 auto;width:26px;height:26px;border-radius:50%;border:1px solid var(--glass-line);
  display:flex;align-items:center;justify-content:center;color:var(--accent);
  font-size:12px;transition:transform var(--t);
}
.faq-item[open] .faq-icon{transform:rotate(45deg);}
.faq-answer{
  padding:0 22px 22px;font-size:15.5px;line-height:1.85;color:var(--ink-2);
  border-left:3px solid transparent;
}
.faq-item[open] .faq-answer{border-left-color:var(--accent);box-shadow:inset 1px 0 12px rgba(53,224,200,.12);}
.faq-answer p{margin:0;font-size:15.5px;}

/* ===== 表单 ===== */
.form-card{
  background:linear-gradient(180deg,rgba(255,255,255,.08),rgba(255,255,255,.03));
  border:1px solid var(--glass-line);border-radius:var(--r-card);padding:30px;box-shadow:var(--shadow);
}
.field{margin-bottom:18px;}
.field label{display:block;font-size:14px;color:var(--ink-2);margin-bottom:8px;}
.field input,.field select,.field textarea{
  width:100%;height:48px;padding:0 14px;border-radius:10px;
  background:rgba(7,14,24,.7);border:1px solid var(--glass-line);color:var(--ink);
  font-size:15px;font-family:inherit;transition:border-color var(--t),box-shadow var(--t);
}
.field textarea{height:120px;padding:12px 14px;resize:vertical;line-height:1.7;}
.field input::placeholder,.field textarea::placeholder{color:var(--ink-3);}
.field input:focus,.field select:focus,.field textarea:focus{
  outline:none;border-color:var(--accent);box-shadow:0 0 0 3px rgba(53,224,200,.16);
}
.field select{appearance:none;background-image:linear-gradient(45deg,transparent 50%,var(--ink-2) 50%),linear-gradient(135deg,var(--ink-2) 50%,transparent 50%);
  background-position:calc(100% - 20px) 21px,calc(100% - 14px) 21px;background-size:6px 6px,6px 6px;background-repeat:no-repeat;}
.form-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:6px;}
.form-note{font-size:13px;color:var(--ink-3);margin:14px 0 0;}
.trust-list li{
  display:flex;gap:12px;font-size:14.5px;color:var(--ink-2);
  padding:14px 0;border-bottom:1px solid var(--line);
}
.trust-list li:last-child{border-bottom:none;padding-bottom:0;}
.trust-list i{color:var(--accent);margin-top:6px;font-size:14px;}
.trust-card{
  background:var(--bg-2);border:1px solid var(--line);border-radius:var(--r-card);padding:26px;height:100%;
}

/* ===== 页脚 ===== */
.site-footer{background:#050B13;border-top:1px solid var(--line);padding:72px 0 0;position:relative;}
.site-footer::before{
  content:"";position:absolute;top:0;left:0;right:0;height:1px;
  background:linear-gradient(90deg,transparent,rgba(53,224,200,.5),transparent);
}
.footer-brand{font-size:17px;font-weight:700;color:var(--ink);margin-bottom:14px;}
.footer-brand span{display:block;font-size:11px;letter-spacing:.34em;color:var(--accent);text-transform:uppercase;font-weight:600;margin-top:4px;}
.footer-col h4{font-size:14px;color:var(--ink);letter-spacing:.06em;margin-bottom:18px;}
.footer-col p{font-size:14px;color:var(--ink-3);line-height:1.85;}
.footer-links li{margin-bottom:11px;}
.footer-links a{font-size:14px;color:var(--ink-2);}
.footer-links a:hover{color:var(--accent);}
.footer-contact li{font-size:14px;color:var(--ink-2);margin-bottom:11px;display:flex;gap:10px;}
.footer-contact i{color:var(--accent);margin-top:6px;font-size:13px;}
.footer-bottom{
  margin-top:56px;border-top:1px solid var(--line);padding:20px 0;
  display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;font-size:13px;color:var(--ink-3);
}
.footer-bottom a{color:var(--ink-3);}
.footer-bottom a:hover{color:var(--accent);}
.footer-grid .cell{margin-bottom:32px;}

/* ===== 动效 ===== */
@keyframes rise{from{opacity:0;transform:translateY(14px);}to{opacity:1;transform:translateY(0);}}
.hero-inner>*{animation:rise .4s ease-out both;}
@media (prefers-reduced-motion:reduce){
  *{animation:none !important;transition:none !important;}
}

/* ===== 响应式 ===== */
@media (max-width:1024px){
  .nav-toggle{display:block;}
  .site-nav{
    position:absolute;top:100%;left:0;right:0;display:none;
    flex-direction:column;align-items:stretch;gap:0;
    background:rgba(9,17,28,.98);border-bottom:1px solid var(--line);
    padding:12px 20px 20px;
  }
  .site-nav.open{display:flex;}
  .nav-list{flex-direction:column;align-items:stretch;gap:0;}
  .nav-link{min-height:48px;border-bottom:1px solid var(--line);border-left:2px solid transparent;padding-left:14px;}
  .nav-link.is-active{border-bottom-color:var(--line);border-left-color:var(--accent);}
  .nav-cta{margin-top:16px;justify-content:center;}
  .svc-lg{flex-direction:column;align-items:flex-start;}
  .svc-lg .svc-media{flex:0 0 auto;width:100%;}
  :root{--sec-y:72px;}
}
@media (max-width:768px){
  .container{padding:0 20px;}
  .topbar-right{display:none;}
  .hero{padding:64px 0 56px;}
  .hero-actions .btn{width:100%;}
  .section-head{margin-bottom:34px;}
  .footer-grid .cell{margin-bottom:26px;}
  .footer-bottom{justify-content:flex-start;}
  :root{--sec-y:64px;}
}
@media (max-width:560px){
  .container{padding:0 16px;}
  .hero h1{font-size:29px;}
  .hero-sub{font-size:15.5px;}
  .kpi-card,.svc-card,.cmp-col,.form-card,.trust-card,.hero-panel{padding:20px;}
  .faq-item summary{padding:16px 16px;font-size:16px;}
  .faq-answer{padding:0 16px 18px;}
  .btn{width:100%;}
  .site-footer{padding-top:56px;}
  :root{--sec-y:56px;}
}

/* roulang page: article */
:root{
  --bg-0:#070E18;
  --bg-1:#0C1724;
  --bg-2:#12202E;
  --primary:#1E5AA8;
  --accent:#35E0C8;
  --accent-dim:rgba(53,224,200,.12);
  --data:#FFB547;
  --ink:#E8F0F7;
  --ink-2:#B9C9D8;
  --ink-3:#7F93A6;
  --line:rgba(255,255,255,.10);
  --glass:rgba(255,255,255,.06);
  --glass-line:rgba(255,255,255,.14);
  --radius-lg:16px;
  --radius-md:12px;
  --radius-sm:10px;
  --shadow:0 10px 30px rgba(0,0,0,.35);
  --glow:0 0 24px rgba(53,224,200,.22);
  --container:1200px;
  --read:820px;
  --font-cn:system-ui,"PingFang SC","HarmonyOS Sans SC","Source Han Sans SC","Microsoft YaHei",sans-serif;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--bg-0);
  color:var(--ink);
  font-family:var(--font-cn);
  font-size:16px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4,p{margin:0;}
button,input,select,textarea{font-family:inherit;font-size:inherit;color:inherit;}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px;}
.container{
  width:100%;
  max-width:var(--container);
  margin:0 auto;
  padding:0 24px;
}

/* ---------- 顶部信息条 ---------- */
.topbar{
  background:#050B14;
  border-bottom:1px solid var(--line);
  font-size:12.5px;
  color:var(--ink-3);
}
.topbar-inner{
  min-height:36px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
}
.topbar-left{display:flex;align-items:center;gap:10px;min-width:0;}
.topbar-dot{
  width:7px;height:7px;border-radius:50%;
  background:var(--accent);
  box-shadow:0 0 10px rgba(53,224,200,.75);
  flex:0 0 auto;
}
.topbar-brand{color:var(--ink-2);font-weight:600;letter-spacing:.2px;}
.topbar-note{
  color:var(--ink-3);
  white-space:nowrap;overflow:hidden;text-overflow:ellipsis;
}
.topbar-right{display:flex;align-items:center;gap:18px;flex:0 0 auto;}
.topbar-right a{color:var(--ink-2);transition:color .18s ease-out;}
.topbar-right a:hover{color:var(--accent);}

/* ---------- 主导航 ---------- */
.site-header{
  position:sticky;
  top:0;
  z-index:50;
  background:rgba(9,18,30,.78);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  border-bottom:1px solid var(--line);
}
.nav-inner{
  min-height:64px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:20px;
}
.brand{
  display:flex;
  flex-direction:column;
  line-height:1.12;
  flex:0 0 auto;
}
.brand-main{font-size:17px;font-weight:700;letter-spacing:.4px;color:var(--ink);}
.brand-sub{
  font-size:11px;letter-spacing:3px;color:var(--accent);
  text-transform:uppercase;
}
.nav-toggle{
  display:none;
  width:44px;height:44px;
  border:1px solid var(--glass-line);
  border-radius:var(--radius-sm);
  background:var(--glass);
  cursor:pointer;
  padding:12px 11px;
  flex-direction:column;
  justify-content:space-between;
}
.nav-toggle span{display:block;height:2px;border-radius:2px;background:var(--ink-2);transition:background .18s ease-out;}
.nav-toggle:hover span{background:var(--accent);}
.site-nav{display:flex;align-items:center;gap:28px;}
.nav-list{display:flex;align-items:center;gap:26px;}
.nav-link{
  position:relative;
  display:inline-block;
  padding:22px 0;
  font-size:15px;
  color:var(--ink-2);
  transition:color .18s ease-out;
}
.nav-link::after{
  content:"";
  position:absolute;left:0;right:0;bottom:14px;height:2px;
  border-radius:2px;
  background:linear-gradient(90deg,var(--accent),rgba(53,224,200,.15));
  transform:scaleX(0);
  transform-origin:left;
  transition:transform .2s ease-out;
}
.nav-link:hover{color:var(--ink);}
.nav-link:hover::after{transform:scaleX(1);}
.nav-link.is-active{color:var(--ink);}
.nav-link.is-active::after{transform:scaleX(1);}
.nav-cta{
  display:inline-flex;align-items:center;
  height:40px;padding:0 20px;
  border-radius:999px;
  font-size:14px;font-weight:600;
  color:#05121C;
  background:linear-gradient(135deg,#4CF0D8,#22C6B0);
  box-shadow:var(--glow);
  transition:transform .18s ease-out,box-shadow .18s ease-out,filter .18s ease-out;
}
.nav-cta:hover{transform:translateY(-2px);filter:brightness(1.08);box-shadow:0 0 30px rgba(53,224,200,.34);}
.nav-cta:active{transform:translateY(0);}

/* ---------- 面包屑 ---------- */
.breadcrumb-bar{
  background:var(--bg-1);
  border-bottom:1px solid var(--line);
}
.breadcrumb{
  display:flex;align-items:center;gap:8px;
  min-height:48px;
  font-size:13.5px;
  color:var(--ink-3);
  overflow:hidden;
}
.breadcrumb li{display:flex;align-items:center;gap:8px;min-width:0;}
.breadcrumb li+li::before{content:"/";color:rgba(255,255,255,.22);}
.breadcrumb a{color:var(--ink-3);transition:color .18s ease-out;}
.breadcrumb a:hover{color:var(--accent);}
.breadcrumb .current{
  color:var(--ink-2);
  max-width:52ch;
  white-space:nowrap;overflow:hidden;text-overflow:ellipsis;
}

/* ---------- 文章头部 ---------- */
.article-hero{
  position:relative;
  padding:64px 0 52px;
  border-bottom:1px solid var(--line);
  background-image:
    linear-gradient(100deg,rgba(7,14,24,.94) 0%,rgba(7,14,24,.78) 48%,rgba(7,14,24,.42) 100%),
    url("/assets/images/backpic/back-2.webp");
  background-size:cover;
  background-position:center;
  overflow:hidden;
}
.article-hero::after{
  content:"";
  position:absolute;top:0;left:0;right:0;height:1px;
  background:linear-gradient(90deg,transparent,rgba(53,224,200,.55),transparent);
}
.article-hero .container{position:relative;z-index:2;}
.article-hero h1{
  font-size:clamp(28px,4vw,42px);
  line-height:1.3;
  letter-spacing:.3px;
  color:var(--ink);
  margin:18px 0 22px;
  max-width:900px;
}
.badge{
  display:inline-flex;align-items:center;gap:6px;
  height:26px;padding:0 13px;
  border-radius:999px;
  font-size:13px;
  background:var(--accent-dim);
  color:var(--accent);
  border:1px solid rgba(53,224,200,.25);
}
.meta-pills{display:flex;flex-wrap:wrap;gap:12px;}
.pill{
  display:inline-flex;align-items:center;gap:8px;
  height:34px;padding:0 14px;
  border-radius:999px;
  font-size:13px;
  color:var(--ink-3);
  background:var(--glass);
  border:1px solid var(--glass-line);
}
.pill i{color:var(--accent);font-size:12px;}

/* ---------- 正文 ---------- */
.article-section{padding:64px 0 88px;}
.reading-wrap{
  max-width:var(--read);
  margin:0 auto;
}
.article-body{
  font-size:17px;
  line-height:1.9;
  color:var(--ink-2);
  word-break:break-word;
}
.article-body p{margin:0 0 20px;}
.article-body h2{
  position:relative;
  font-size:24px;
  line-height:1.35;
  color:var(--ink);
  margin:46px 0 18px;
  padding-left:16px;
}
.article-body h2::before{
  content:"";
  position:absolute;left:0;top:.18em;bottom:.18em;width:4px;
  border-radius:999px;
  background:linear-gradient(180deg,var(--accent),rgba(53,224,200,.12));
  box-shadow:0 0 14px rgba(53,224,200,.4);
}
.article-body h3{
  font-size:20px;
  line-height:1.4;
  color:var(--ink);
  margin:34px 0 14px;
}
.article-body h4{
  font-size:17px;
  color:var(--ink);
  margin:26px 0 12px;
}
.article-body ul,.article-body ol{margin:0 0 20px;padding-left:22px;}
.article-body ul li{list-style:disc;margin-bottom:10px;}
.article-body ol li{list-style:decimal;margin-bottom:10px;}
.article-body li::marker{color:var(--accent);}
.article-body strong{color:var(--ink);font-weight:600;}
.article-body a{
  color:var(--accent);
  text-decoration:underline;
  text-underline-offset:3px;
  text-decoration-thickness:1px;
  transition:color .18s ease-out;
}
.article-body a:hover{color:#7BF0DE;}
.article-body blockquote{
  margin:28px 0;
  padding:16px 22px;
  border-left:3px solid var(--accent);
  background:rgba(53,224,200,.055);
  border-radius:0 var(--radius-md) var(--radius-md) 0;
  box-shadow:-2px 0 18px rgba(53,224,200,.12);
  color:var(--ink-2);
}
.article-body blockquote p:last-child{margin-bottom:0;}
.article-body img{
  width:100%;
  height:auto;
  border-radius:var(--radius-md);
  margin:24px 0;
  border:1px solid var(--line);
}
.article-body hr{
  border:0;height:1px;margin:36px 0;
  background:linear-gradient(90deg,transparent,var(--glass-line),transparent);
}
.article-body table{
  width:100%;
  border-collapse:collapse;
  margin:24px 0;
  font-size:15px;
  min-width:520px;
}
.article-body .table-scroll,.article-body figure{overflow-x:auto;}
.article-body thead th{
  background:var(--bg-2);
  color:var(--ink);
  font-size:13px;
  font-weight:600;
  text-align:left;
  padding:12px 14px;
  border-bottom:1px solid var(--glass-line);
  white-space:nowrap;
}
.article-body tbody td{
  padding:12px 14px;
  border-bottom:1px solid var(--line);
  color:var(--ink-2);
}
.article-body pre{
  overflow-x:auto;
  background:var(--bg-2);
  border:1px solid var(--line);
  border-radius:var(--radius-md);
  padding:16px 18px;
  font-size:14px;
  line-height:1.7;
  margin:24px 0;
}
.article-body code{
  font-family:"Roboto Mono",ui-monospace,Consolas,monospace;
  font-size:.92em;
  background:rgba(255,255,255,.06);
  border-radius:6px;
  padding:2px 6px;
}
.article-body pre code{background:none;padding:0;}

/* 空态 */
.empty-state{
  text-align:center;
  padding:72px 24px;
  background:var(--glass);
  border:1px solid var(--glass-line);
  border-radius:var(--radius-lg);
  box-shadow:var(--shadow);
}
.empty-state i{
  font-size:34px;
  color:var(--ink-3);
  margin-bottom:18px;
  display:block;
}
.empty-state p{color:var(--ink-2);margin-bottom:22px;}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  height:46px;
  padding:0 26px;
  border-radius:999px;
  font-size:15px;
  font-weight:600;
  border:1px solid transparent;
  cursor:pointer;
  transition:transform .18s ease-out,box-shadow .18s ease-out,filter .18s ease-out,border-color .18s ease-out,background .18s ease-out;
}
.btn-primary{
  color:#05121C;
  background:linear-gradient(135deg,#4CF0D8,#22C6B0);
  box-shadow:var(--glow);
}
.btn-primary:hover{transform:translateY(-2px);filter:brightness(1.08);box-shadow:0 0 30px rgba(53,224,200,.34);}
.btn-primary:active{transform:translateY(0);box-shadow:inset 0 2px 8px rgba(0,0,0,.25);}
.btn-ghost{
  color:var(--ink);
  background:var(--glass);
  border-color:var(--glass-line);
}
.btn-ghost:hover{border-color:var(--accent);color:var(--accent);transform:translateY(-2px);}
.btn-ghost:active{transform:translateY(0);}

/* ---------- 相关推荐 ---------- */
.related-section{
  padding:72px 0 88px;
  background:var(--bg-1);
  border-top:1px solid var(--line);
}
.section-head{
  display:flex;
  align-items:flex-end;
  justify-content:space-between;
  gap:20px;
  margin-bottom:32px;
}
.section-head h2{
  font-size:clamp(22px,2.4vw,30px);
  line-height:1.3;
  color:var(--ink);
}
.section-head p{font-size:14px;color:var(--ink-3);margin-top:8px;}
.section-head .more-link{
  font-size:14px;
  color:var(--accent);
  white-space:nowrap;
  transition:opacity .18s ease-out;
}
.section-head .more-link:hover{opacity:.78;}
.card-grid{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:24px;
}
.post-card{
  display:flex;
  flex-direction:column;
  background:var(--glass);
  border:1px solid var(--glass-line);
  border-radius:var(--radius-lg);
  overflow:hidden;
  transition:transform .2s ease-out,border-color .2s ease-out,box-shadow .2s ease-out;
}
.post-card:hover{
  transform:translateY(-3px);
  border-color:rgba(53,224,200,.42);
  box-shadow:var(--shadow);
}
.post-thumb{
  aspect-ratio:16/9;
  overflow:hidden;
  background:var(--bg-2);
}
.post-thumb img{
  width:100%;height:100%;
  object-fit:cover;
  transition:transform .3s ease-out;
}
.post-card:hover .post-thumb img{transform:scale(1.03);}
.post-body{padding:20px 22px 24px;display:flex;flex-direction:column;flex:1;}
.post-body .badge{margin-bottom:14px;align-self:flex-start;}
.post-body h3{
  font-size:18px;
  line-height:1.45;
  color:var(--ink);
  margin-bottom:10px;
  transition:color .18s ease-out;
}
.post-card:hover .post-body h3{color:var(--accent);}
.post-body p{
  font-size:14.5px;
  line-height:1.8;
  color:var(--ink-3);
  margin-bottom:16px;
  display:-webkit-box;
  -webkit-line-clamp:2;
  -webkit-box-orient:vertical;
  overflow:hidden;
}
.post-meta{
  margin-top:auto;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:12px;
  font-size:13px;
  color:var(--ink-3);
  border-top:1px solid var(--line);
  padding-top:14px;
}
.post-meta .arrow{color:var(--accent);transition:transform .18s ease-out;}
.post-card:hover .post-meta .arrow{transform:translateX(4px);}

/* ---------- 文末操作区 ---------- */
.article-foot{
  max-width:var(--read);
  margin:48px auto 0;
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  padding:22px 24px;
  border-radius:var(--radius-lg);
  background:var(--glass);
  border:1px solid var(--glass-line);
}
.article-foot span{font-size:14px;color:var(--ink-3);}

/* ---------- CTA ---------- */
.cta-section{padding:80px 0;}
.cta-card{
  position:relative;
  overflow:hidden;
  border-radius:20px;
  padding:52px 48px;
  background-image:
    linear-gradient(105deg,rgba(9,18,30,.94) 0%,rgba(9,18,30,.76) 55%,rgba(9,18,30,.5) 100%),
    url("/assets/images/backpic/back-3.webp");
  background-size:cover;
  background-position:center;
  border:1px solid var(--glass-line);
  box-shadow:var(--shadow);
}
.cta-card h2{
  font-size:clamp(22px,2.6vw,32px);
  line-height:1.32;
  color:var(--ink);
  margin-bottom:14px;
  max-width:640px;
}
.cta-card p{
  font-size:15.5px;
  line-height:1.85;
  color:var(--ink-2);
  max-width:660px;
  margin-bottom:28px;
}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;}

/* ---------- 页脚 ---------- */
.site-footer{
  position:relative;
  background:#050B14;
  border-top:1px solid var(--line);
  padding:64px 0 0;
}
.site-footer::before{
  content:"";
  position:absolute;top:0;left:0;right:0;height:1px;
  background:linear-gradient(90deg,transparent,rgba(53,224,200,.5),transparent);
}
.footer-grid{padding-bottom:44px;}
.footer-col{margin-bottom:24px;}
.footer-brand{
  display:flex;
  flex-direction:column;
  line-height:1.2;
  font-size:18px;
  font-weight:700;
  color:var(--ink);
  margin-bottom:16px;
}
.footer-brand span{
  font-size:11px;
  letter-spacing:3px;
  color:var(--accent);
  text-transform:uppercase;
  margin-top:4px;
}
.footer-col p{font-size:14px;line-height:1.85;color:var(--ink-3);max-width:34ch;}
.footer-col h4{
  font-size:15px;
  color:var(--ink);
  margin-bottom:18px;
  font-weight:600;
}
.footer-links li,.footer-contact li{
  font-size:14px;
  color:var(--ink-3);
  margin-bottom:12px;
}
.footer-links a{transition:color .18s ease-out;}
.footer-links a:hover{color:var(--accent);}
.footer-contact li{display:flex;align-items:flex-start;gap:10px;line-height:1.7;}
.footer-contact i{color:var(--accent);margin-top:5px;font-size:12px;}
.footer-bottom{
  border-top:1px solid var(--line);
  min-height:64px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  font-size:13px;
  color:var(--ink-3);
  flex-wrap:wrap;
}
.footer-bottom a{color:var(--ink-3);transition:color .18s ease-out;}
.footer-bottom a:hover{color:var(--accent);}

/* ---------- 响应式 ---------- */
@media screen and (max-width:1023px){
  .nav-toggle{display:flex;}
  .site-nav{
    position:absolute;
    top:100%;left:0;right:0;
    flex-direction:column;
    align-items:stretch;
    gap:0;
    padding:12px 24px 24px;
    background:rgba(9,18,30,.97);
    backdrop-filter:blur(16px);
    border-bottom:1px solid var(--line);
    transform:translateY(-8px);
    opacity:0;
    visibility:hidden;
    transition:opacity .2s ease-out,transform .2s ease-out,visibility .2s;
  }
  .site-nav.is-open{opacity:1;visibility:visible;transform:translateY(0);}
  .nav-list{flex-direction:column;align-items:stretch;gap:0;}
  .nav-link{padding:14px 0;border-bottom:1px solid var(--line);}
  .nav-link::after{bottom:6px;right:auto;width:52px;}
  .nav-cta{margin-top:18px;justify-content:center;height:44px;}
  .card-grid{grid-template-columns:repeat(2,1fr);}
}
@media screen and (max-width:767px){
  .container{padding:0 20px;}
  .topbar-note{display:none;}
  .article-hero{padding:48px 0 40px;}
  .article-section{padding:48px 0 64px;}
  .related-section{padding:56px 0 64px;}
  .cta-section{padding:56px 0;}
  .cta-card{padding:36px 24px;}
  .article-body{font-size:16px;}
  .article-body h2{font-size:22px;margin-top:36px;}
  .article-body h3{font-size:19px;}
  .footer-bottom{justify-content:flex-start;padding:18px 0;}
}
@media screen and (max-width:560px){
  .container{padding:0 16px;}
  .topbar-right a:last-child{display:none;}
  .card-grid{grid-template-columns:1fr;}
  .section-head{flex-direction:column;align-items:flex-start;}
  .article-foot{flex-direction:column;align-items:stretch;}
  .article-foot .btn{width:100%;}
  .cta-actions .btn{width:100%;}
}
@media (prefers-reduced-motion:reduce){
  *{animation:none!important;transition:none!important;}
  html{scroll-behavior:auto;}
}

/* roulang page: category1 */
:root{
  --bg-0:#070E18;
  --bg-1:#0C1724;
  --bg-2:#12202E;
  --primary:#1E5AA8;
  --accent:#35E0C8;
  --data:#FFB547;
  --ink:#E8F0F7;
  --ink-2:#B9C9D8;
  --ink-3:#7F93A6;
  --line:rgba(255,255,255,.10);
  --glass:rgba(255,255,255,.06);
  --glass-line:rgba(255,255,255,.14);
  --radius:16px;
  --radius-sm:12px;
  --radius-xs:10px;
  --shadow:0 10px 30px rgba(0,0,0,.35);
  --glow:0 0 24px rgba(53,224,200,.22);
  --glow-strong:0 0 34px rgba(53,224,200,.34);
  --font-cn:system-ui,"PingFang SC","HarmonyOS Sans SC","Source Han Sans SC","Microsoft YaHei",sans-serif;
  --font-num:"Inter","Roboto Mono",system-ui,sans-serif;
  --ease:cubic-bezier(.22,.61,.36,1);
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  background:var(--bg-0);
  color:var(--ink);
  font-family:var(--font-cn);
  font-size:16.5px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
body::before{
  content:"";
  position:fixed;
  inset:0;
  pointer-events:none;
  z-index:0;
  background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='140' height='140'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.9' numOctaves='2'/%3E%3C/filter%3E%3Crect width='140' height='140' filter='url(/%23n)' opacity='.05'/%3E%3C/svg%3E");
}
img{max-width:100%;display:block}
a{color:var(--accent);text-decoration:none;transition:color .18s var(--ease),border-color .18s var(--ease),opacity .18s var(--ease)}
a:hover{color:#7CF3E1}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4{margin:0;line-height:1.3;font-weight:650;letter-spacing:.01em}
p{margin:0}
button,input,select,textarea{font:inherit;color:inherit}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px;border-radius:6px}

.container{
  width:100%;
  max-width:1200px;
  margin:0 auto;
  padding:0 24px;
  position:relative;
  z-index:1;
}

/* ============ 顶部导航 ============ */
.site-header{
  position:sticky;
  top:0;
  z-index:60;
  background:rgba(7,14,24,.80);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  border-bottom:1px solid var(--line);
}
.nav-inner{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:18px;
  height:64px;
}
.brand{
  display:flex;
  flex-direction:column;
  justify-content:center;
  line-height:1.12;
  color:var(--ink);
  flex:0 0 auto;
}
.brand-main{font-size:16px;font-weight:700;letter-spacing:.02em}
.brand-sub{font-size:11px;letter-spacing:.22em;color:var(--accent);text-transform:uppercase}
.brand:hover{color:var(--ink)}
.site-nav{display:flex;align-items:center;gap:22px}
.nav-list{display:flex;align-items:center;gap:4px}
.nav-link{
  position:relative;
  display:inline-flex;
  align-items:center;
  min-height:44px;
  padding:0 14px;
  border-radius:10px;
  font-size:15px;
  color:var(--ink-2);
  white-space:nowrap;
  transition:color .18s var(--ease),background .18s var(--ease);
}
.nav-link::after{
  content:"";
  position:absolute;
  left:14px;
  right:14px;
  bottom:6px;
  height:2px;
  border-radius:2px;
  background:linear-gradient(90deg,var(--accent),rgba(53,224,200,0));
  transform:scaleX(0);
  transform-origin:left center;
  transition:transform .2s var(--ease);
}
.nav-link:hover{color:var(--ink);background:rgba(255,255,255,.05)}
.nav-link:hover::after{transform:scaleX(1)}
.nav-link.is-active{color:var(--ink);font-weight:600}
.nav-link.is-active::after{transform:scaleX(1)}
.nav-cta{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  min-height:44px;
  padding:0 20px;
  border-radius:999px;
  font-size:14.5px;
  font-weight:650;
  color:#05121C;
  background:linear-gradient(135deg,#35E0C8,#22B7A8);
  box-shadow:var(--glow);
  transition:transform .18s var(--ease),box-shadow .18s var(--ease),filter .18s var(--ease);
}
.nav-cta:hover{color:#05121C;filter:brightness(1.08);transform:translateY(-2px);box-shadow:var(--glow-strong)}
.nav-cta:active{transform:translateY(0);box-shadow:inset 0 2px 8px rgba(0,0,0,.35)}
.nav-toggle{
  display:none;
  flex-direction:column;
  justify-content:center;
  gap:5px;
  width:44px;
  height:44px;
  padding:0 10px;
  background:var(--glass);
  border:1px solid var(--glass-line);
  border-radius:12px;
  cursor:pointer;
}
.nav-toggle span{display:block;height:2px;border-radius:2px;background:var(--ink);transition:transform .2s var(--ease),opacity .2s var(--ease)}
.nav-toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.nav-toggle[aria-expanded="true"] span:nth-child(2){opacity:0}
.nav-toggle[aria-expanded="true"] span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}

/* ============ 面包屑 ============ */
.crumb-bar{padding:18px 0 0}
.crumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13.5px;color:var(--ink-3)}
.crumb a{color:var(--ink-3);border-bottom:1px solid transparent}
.crumb a:hover{color:var(--accent);border-bottom-color:rgba(53,224,200,.5)}
.crumb .sep{opacity:.55}
.crumb .current{color:var(--ink-2)}

/* ============ Hero ============ */
.page-hero{
  position:relative;
  padding:44px 0 76px;
  overflow:hidden;
  border-bottom:1px solid var(--line);
}
.page-hero::before{
  content:"";
  position:absolute;
  inset:0;
  background-image:url("/assets/images/backpic/back-1.webp");
  background-size:cover;
  background-position:center right;
  opacity:.42;
}
.page-hero::after{
  content:"";
  position:absolute;
  inset:0;
  background:linear-gradient(100deg,rgba(7,14,24,.96) 0%,rgba(7,14,24,.82) 46%,rgba(7,14,24,.42) 100%);
}
.hero-content{position:relative;z-index:2;max-width:720px}
.eyebrow{
  display:inline-flex;
  align-items:center;
  gap:8px;
  padding:6px 14px;
  border-radius:999px;
  font-size:13px;
  letter-spacing:.06em;
  color:var(--accent);
  background:rgba(53,224,200,.10);
  border:1px solid rgba(53,224,200,.28);
}
.hero-title{
  margin-top:20px;
  font-size:clamp(30px,4.6vw,48px);
  line-height:1.24;
  letter-spacing:.005em;
}
.hero-title .hl{
  background:linear-gradient(180deg,transparent 62%,rgba(53,224,200,.28) 62%);
  padding:0 2px;
}
.hero-sub{
  margin-top:18px;
  font-size:16.5px;
  line-height:1.9;
  color:var(--ink-2);
  max-width:660px;
}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:30px}
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  min-height:48px;
  padding:0 26px;
  border-radius:999px;
  font-size:15.5px;
  font-weight:650;
  cursor:pointer;
  border:1px solid transparent;
  transition:transform .18s var(--ease),box-shadow .18s var(--ease),filter .18s var(--ease),border-color .18s var(--ease),background .18s var(--ease);
}
.btn-primary{
  color:#05121C;
  background:linear-gradient(135deg,#35E0C8,#1FB6A6);
  box-shadow:var(--glow);
}
.btn-primary:hover{color:#05121C;filter:brightness(1.08);transform:translateY(-2px);box-shadow:var(--glow-strong)}
.btn-primary:active{transform:translateY(0);box-shadow:inset 0 2px 10px rgba(0,0,0,.38)}
.btn-ghost{
  color:var(--ink);
  background:var(--glass);
  border-color:var(--glass-line);
}
.btn-ghost:hover{color:var(--ink);border-color:rgba(53,224,200,.55);transform:translateY(-2px)}
.btn-ghost:active{transform:translateY(0)}
.btn-sm{min-height:42px;padding:0 20px;font-size:14.5px}
.hero-meta{
  display:flex;
  flex-wrap:wrap;
  gap:10px;
  margin-top:28px;
}
.pill{
  display:inline-flex;
  align-items:center;
  gap:7px;
  padding:7px 14px;
  border-radius:999px;
  font-size:13px;
  color:var(--ink-2);
  background:rgba(255,255,255,.05);
  border:1px solid var(--line);
}
.pill i{color:var(--accent);font-size:12px}
.pill.is-data i{color:var(--data)}

/* ============ 通用板块 ============ */
.section{padding:96px 0;position:relative}
.section.tight{padding:72px 0}
.section-alt{
  background:var(--bg-1);
  border-top:1px solid var(--line);
  border-bottom:1px solid var(--line);
}
.section-head{max-width:760px;margin-bottom:46px}
.section-head.center{margin-left:auto;margin-right:auto;text-align:center}
.section-tag{
  display:inline-block;
  font-size:13px;
  letter-spacing:.14em;
  color:var(--accent);
  text-transform:uppercase;
  margin-bottom:14px;
}
.section-title{font-size:clamp(24px,2.6vw,34px);line-height:1.32}
.section-title::after{
  content:"";
  display:block;
  width:56px;
  height:3px;
  margin-top:16px;
  border-radius:3px;
  background:linear-gradient(90deg,var(--accent),var(--primary));
}
.section-head.center .section-title::after{margin-left:auto;margin-right:auto}
.section-desc{margin-top:16px;color:var(--ink-2);font-size:16px;line-height:1.9}

/* ============ 两栏：左侧清单 + 右侧粘性卡 ============ */
.guide-layout{
  display:grid;
  grid-template-columns:minmax(0,1fr) 348px;
  gap:36px;
  align-items:start;
}
.guide-flow{display:flex;flex-direction:column;gap:22px}
.guide-row{
  display:grid;
  grid-template-columns:200px minmax(0,1fr);
  gap:24px;
  padding:24px;
  background:var(--bg-2);
  border:1px solid var(--line);
  border-radius:var(--radius);
  box-shadow:var(--shadow);
  transition:transform .2s var(--ease),border-color .2s var(--ease),box-shadow .2s var(--ease);
}
.guide-row:hover{transform:translateY(-3px);border-color:rgba(53,224,200,.38);box-shadow:0 18px 42px rgba(0,0,0,.45)}
.guide-thumb{
  position:relative;
  border-radius:var(--radius-sm);
  overflow:hidden;
  background:linear-gradient(140deg,#132436,#0B1521);
  aspect-ratio:16/11;
}
.guide-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .32s var(--ease)}
.guide-row:hover .guide-thumb img{transform:scale(1.03)}
.guide-index{
  position:absolute;
  left:10px;
  top:10px;
  padding:3px 10px;
  border-radius:999px;
  font-size:12.5px;
  font-family:var(--font-num);
  font-variant-numeric:tabular-nums;
  color:#05121C;
  background:var(--accent);
  font-weight:700;
}
.guide-body h3{font-size:19px;display:flex;align-items:center;gap:10px;flex-wrap:wrap}
.guide-body h3 i{color:var(--accent);font-size:15px}
.guide-body p{margin-top:10px;color:var(--ink-2);font-size:15.5px;line-height:1.85}
.tag-row{display:flex;flex-wrap:wrap;gap:8px;margin-top:14px}
.tag{
  display:inline-flex;
  align-items:center;
  padding:4px 12px;
  border-radius:999px;
  font-size:12.5px;
  color:var(--accent);
  background:rgba(53,224,200,.12);
  border:1px solid rgba(53,224,200,.22);
}
.tag.is-data{color:var(--data);background:rgba(255,181,71,.12);border-color:rgba(255,181,71,.26)}
.arrow-link{
  display:inline-flex;
  align-items:center;
  gap:6px;
  margin-top:14px;
  font-size:14.5px;
  color:var(--accent);
  border-bottom:1px solid rgba(53,224,200,.4);
  padding-bottom:2px;
}
.arrow-link i{transition:transform .18s var(--ease)}
.arrow-link:hover i{transform:translateX(4px)}

/* 粘性信息卡 */
.sticky-col{position:sticky;top:88px;display:flex;flex-direction:column;gap:20px}
.side-card{
  padding:24px;
  background:var(--glass);
  border:1px solid var(--glass-line);
  border-radius:var(--radius);
  backdrop-filter:blur(10px);
  -webkit-backdrop-filter:blur(10px);
  box-shadow:var(--shadow);
}
.side-card h3{
  font-size:17px;
  display:flex;
  align-items:center;
  gap:9px;
  padding-bottom:14px;
  border-bottom:1px solid var(--line);
}
.side-card h3 i{color:var(--accent)}
.step-list{margin-top:16px;display:flex;flex-direction:column;gap:14px}
.step-list li{display:grid;grid-template-columns:26px minmax(0,1fr);gap:12px;align-items:start}
.step-no{
  display:flex;
  align-items:center;
  justify-content:center;
  width:26px;
  height:26px;
  border-radius:8px;
  font-size:12.5px;
  font-weight:700;
  font-family:var(--font-num);
  color:#05121C;
  background:linear-gradient(135deg,#35E0C8,#1FB6A6);
}
.step-list strong{display:block;font-size:14.5px;font-weight:600;color:var(--ink)}
.step-list span{display:block;font-size:13.5px;color:var(--ink-3);line-height:1.7;margin-top:2px}
.side-links{margin-top:14px;display:flex;flex-direction:column;gap:2px}
.side-links a{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:10px;
  min-height:44px;
  padding:0 12px;
  border-radius:10px;
  font-size:14.5px;
  color:var(--ink-2);
  transition:background .18s var(--ease),color .18s var(--ease);
}
.side-links a:hover{background:rgba(255,255,255,.06);color:var(--ink)}
.side-links a i{color:var(--ink-3);font-size:12px}
.side-links a:hover i{color:var(--accent)}
.hint-list{margin-top:14px;display:flex;flex-direction:column;gap:12px}
.hint-list li{
  padding:12px 14px;
  border-radius:var(--radius-xs);
  background:rgba(255,181,71,.07);
  border-left:3px solid rgba(255,181,71,.6);
  font-size:13.5px;
  color:var(--ink-2);
  line-height:1.75;
}
.hint-list li strong{color:var(--data);font-weight:600}

/* ============ 卡片网格 ============ */
.card-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px}
.info-card{
  display:flex;
  flex-direction:column;
  padding:26px;
  background:var(--bg-2);
  border:1px solid var(--line);
  border-radius:var(--radius);
  box-shadow:var(--shadow);
  transition:transform .2s var(--ease),border-color .2s var(--ease);
}
.info-card:hover{transform:translateY(-4px);border-color:rgba(53,224,200,.4)}
.icon-badge{
  display:flex;
  align-items:center;
  justify-content:center;
  width:44px;
  height:44px;
  border-radius:12px;
  background:rgba(30,90,168,.28);
  border:1px solid rgba(53,224,200,.35);
  color:var(--accent);
  font-size:17px;
}
.info-card h3{margin-top:18px;font-size:18.5px}
.info-card p{margin-top:10px;color:var(--ink-2);font-size:15px;line-height:1.85}
.info-card .arrow-link{margin-top:auto;padding-top:18px}

/* ============ 指标条 ============ */
.stat-strip{
  display:grid;
  grid-template-columns:repeat(4,minmax(0,1fr));
  gap:20px;
}
.stat-card{
  padding:22px 22px 20px;
  border-radius:var(--radius);
  background:var(--glass);
  border:1px solid var(--glass-line);
  position:relative;
  overflow:hidden;
  transition:transform .2s var(--ease),border-color .2s var(--ease);
}
.stat-card::before{
  content:"";
  position:absolute;
  left:0;right:0;top:0;
  height:1px;
  background:linear-gradient(90deg,rgba(53,224,200,0),rgba(53,224,200,.8),rgba(53,224,200,0));
}
.stat-card:hover{transform:translateY(-2px);border-color:rgba(53,224,200,.4)}
.stat-num{
  font-family:var(--font-num);
  font-variant-numeric:tabular-nums;
  font-size:36px;
  font-weight:700;
  line-height:1.1;
  color:var(--ink);
}
.stat-num small{font-size:15px;color:var(--ink-3);margin-left:4px;font-weight:500}
.stat-label{margin-top:8px;font-size:14px;color:var(--ink-2)}
.stat-bar{margin-top:14px;height:4px;border-radius:999px;background:rgba(255,255,255,.10);overflow:hidden}
.stat-bar span{display:block;height:100%;border-radius:999px;background:linear-gradient(90deg,var(--accent),var(--data))}

/* ============ FAQ ============ */
.faq-list{display:flex;flex-direction:column;gap:14px;max-width:920px}
.faq-item{
  border-radius:14px;
  background:var(--glass);
  border:1px solid var(--glass-line);
  overflow:hidden;
  transition:border-color .2s var(--ease),background .2s var(--ease);
}
.faq-item.is-open{border-color:rgba(53,224,200,.45)}
.faq-q{
  width:100%;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  padding:20px 22px;
  background:transparent;
  border:0;
  text-align:left;
  font-size:17px;
  font-weight:600;
  color:var(--ink);
  cursor:pointer;
  position:relative;
  transition:color .18s var(--ease);
}
.faq-q::before{
  content:"";
  position:absolute;
  left:0;top:12px;bottom:12px;
  width:3px;
  border-radius:0 3px 3px 0;
  background:var(--accent);
  opacity:0;
  box-shadow:0 0 14px rgba(53,224,200,.7);
  transition:opacity .2s var(--ease);
}
.faq-item.is-open .faq-q::before{opacity:1}
.faq-q i{
  flex:0 0 auto;
  color:var(--ink-3);
  font-size:14px;
  transition:transform .22s var(--ease),color .2s var(--ease);
}
.faq-item.is-open .faq-q i{transform:rotate(45deg);color:var(--accent)}
.faq-a{
  max-height:0;
  overflow:hidden;
  transition:max-height .3s var(--ease);
}
.faq-a-inner{
  padding:0 22px 22px 22px;
  color:var(--ink-2);
  font-size:15.5px;
  line-height:1.85;
}

/* ============ CTA 表单 ============ */
.cta-section{
  position:relative;
  padding:96px 0;
  border-top:1px solid var(--line);
  background:var(--bg-1);
  overflow:hidden;
}
.cta-section::before{
  content:"";
  position:absolute;
  inset:0;
  background-image:url("/assets/images/backpic/back-2.webp");
  background-size:cover;
  background-position:center;
  opacity:.20;
}
.cta-section::after{
  content:"";
  position:absolute;
  inset:0;
  background:linear-gradient(180deg,rgba(12,23,36,.92),rgba(7,14,24,.96));
}
.cta-grid{
  position:relative;
  z-index:2;
  display:grid;
  grid-template-columns:minmax(0,1fr) minmax(0,1.05fr);
  gap:44px;
  align-items:start;
}
.cta-copy h2{font-size:clamp(24px,2.6vw,34px);line-height:1.32}
.cta-copy h2::after{
  content:"";
  display:block;
  width:56px;height:3px;margin-top:16px;border-radius:3px;
  background:linear-gradient(90deg,var(--accent),var(--primary));
}
.cta-copy p{margin-top:18px;color:var(--ink-2);font-size:16px;line-height:1.9}
.trust-list{margin-top:26px;display:flex;flex-direction:column;gap:12px}
.trust-list li{display:flex;align-items:flex-start;gap:11px;font-size:14.5px;color:var(--ink-2)}
.trust-list i{color:var(--accent);margin-top:5px;font-size:13px}
.form-card{
  padding:32px;
  background:rgba(255,255,255,.055);
  border:1px solid var(--glass-line);
  border-radius:var(--radius);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  box-shadow:var(--shadow);
}
.field{margin-bottom:18px}
.field label{display:block;font-size:14px;color:var(--ink-2);margin-bottom:8px}
.field input,.field select,.field textarea{
  width:100%;
  min-height:48px;
  padding:12px 14px;
  border-radius:var(--radius-xs);
  background:rgba(7,14,24,.72);
  border:1px solid var(--line);
  color:var(--ink);
  font-size:15px;
  transition:border-color .18s var(--ease),box-shadow .18s var(--ease),background .18s var(--ease);
}
.field textarea{min-height:112px;resize:vertical;line-height:1.75}
.field input::placeholder,.field textarea::placeholder{color:var(--ink-3)}
.field input:focus,.field select:focus,.field textarea:focus{
  outline:none;
  border-color:var(--accent);
  box-shadow:0 0 0 3px rgba(53,224,200,.18);
  background:rgba(7,14,24,.9);
}
.field select{appearance:none;background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8'%3E%3Cpath fill='%23B9C9D8' d='M6 8 0 0h12z'/%3E%3C/svg%3E");background-repeat:no-repeat;background-position:right 16px center;padding-right:38px}
.form-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:6px}
.form-note{margin-top:14px;font-size:13px;color:var(--ink-3);line-height:1.7}
.form-msg{
  display:none;
  margin-top:16px;
  padding:12px 14px;
  border-radius:var(--radius-xs);
  font-size:14px;
  background:rgba(53,224,200,.10);
  border:1px solid rgba(53,224,200,.35);
  color:var(--accent);
}
.form-msg.is-visible{display:block}

/* ============ 页脚 ============ */
.site-footer{
  position:relative;
  padding:72px 0 0;
  background:var(--bg-0);
  border-top:1px solid var(--line);
}
.site-footer::before{
  content:"";
  position:absolute;
  top:0;left:0;right:0;
  height:1px;
  background:linear-gradient(90deg,rgba(53,224,200,0),rgba(53,224,200,.55),rgba(53,224,200,0));
}
.footer-grid{row-gap:32px}
.footer-col{padding:0 12px}
.footer-brand{
  display:flex;
  flex-direction:column;
  font-size:17px;
  font-weight:700;
  line-height:1.28;
  color:var(--ink);
}
.footer-brand span{font-size:11px;letter-spacing:.22em;color:var(--accent);text-transform:uppercase;margin-top:2px}
.footer-col > p{margin-top:16px;color:var(--ink-3);font-size:14px;line-height:1.85}
.footer-col h4{font-size:15px;color:var(--ink);margin-bottom:16px}
.footer-links,.footer-contact{display:flex;flex-direction:column;gap:10px}
.footer-links a{font-size:14px;color:var(--ink-3)}
.footer-links a:hover{color:var(--accent)}
.footer-contact li{display:flex;align-items:flex-start;gap:10px;font-size:14px;color:var(--ink-3);line-height:1.7}
.footer-contact i{color:var(--accent);margin-top:5px;font-size:13px;flex:0 0 auto}
.footer-bottom{
  margin-top:52px;
  padding:22px 0;
  border-top:1px solid var(--line);
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  justify-content:space-between;
  gap:12px;
  font-size:13.5px;
  color:var(--ink-3);
}
.footer-bottom a{color:var(--ink-3)}
.footer-bottom a:hover{color:var(--accent)}

/* ============ 动效 ============ */
.fade-up{opacity:0;transform:translateY(16px);animation:fadeUp .5s var(--ease) forwards}
.fade-up.d1{animation-delay:.06s}
.fade-up.d2{animation-delay:.12s}
.fade-up.d3{animation-delay:.18s}
@keyframes fadeUp{to{opacity:1;transform:translateY(0)}}
@media (prefers-reduced-motion:reduce){
  *{animation:none!important;transition:none!important;scroll-behavior:auto!important}
  .fade-up{opacity:1;transform:none}
}

/* ============ 响应式 ============ */
@media (max-width:1024px){
  .nav-toggle{display:flex}
  .site-nav{
    position:absolute;
    top:100%;
    left:16px;
    right:16px;
    flex-direction:column;
    align-items:stretch;
    gap:8px;
    padding:16px;
    background:rgba(9,17,28,.97);
    border:1px solid var(--glass-line);
    border-radius:var(--radius);
    box-shadow:0 24px 50px rgba(0,0,0,.55);
    display:none;
  }
  .site-nav.is-open{display:flex}
  .nav-list{flex-direction:column;align-items:stretch;gap:2px}
  .nav-link{justify-content:flex-start;padding:0 14px}
  .nav-link::after{display:none}
  .nav-link.is-active{background:rgba(53,224,200,.10);color:var(--accent)}
  .nav-cta{width:100%}
  .guide-layout{grid-template-columns:minmax(0,1fr)}
  .sticky-col{position:static}
  .cta-grid{grid-template-columns:minmax(0,1fr);gap:32px}
  .card-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .stat-strip{grid-template-columns:repeat(2,minmax(0,1fr))}
}
@media (max-width:768px){
  .container{padding:0 20px}
  .section{padding:72px 0}
  .section.tight{padding:60px 0}
  .page-hero{padding:32px 0 60px}
  .hero-actions{width:100%}
  .hero-actions .btn{width:100%}
  .guide-row{grid-template-columns:minmax(0,1fr);gap:18px;padding:20px}
  .guide-thumb{aspect-ratio:16/9}
  .footer-bottom{justify-content:flex-start}
}
@media (max-width:520px){
  body{font-size:16px}
  .container{padding:0 16px}
  .section{padding:56px 0}
  .section.tight{padding:52px 0}
  .cta-section{padding:64px 0}
  .card-grid{grid-template-columns:minmax(0,1fr)}
  .stat-strip{grid-template-columns:minmax(0,1fr)}
  .form-card{padding:22px}
  .faq-q{font-size:16px;padding:18px}
  .faq-a-inner{padding:0 18px 18px}
  .side-card{padding:20px}
  .hero-title{font-size:28px}
}

/* roulang page: category2 */
:root{
  --bg-0:#070E18;
  --bg-1:#0C1724;
  --bg-2:#12202E;
  --primary:#1E5AA8;
  --accent:#35E0C8;
  --accent-2:#63F0DC;
  --data:#FFB547;
  --ink:#E8F0F7;
  --ink-2:#B9C9D8;
  --ink-3:#7F93A6;
  --line:rgba(255,255,255,.10);
  --line-2:rgba(255,255,255,.06);
  --glass:rgba(255,255,255,.06);
  --glass-line:rgba(255,255,255,.14);
  --r-lg:16px;
  --r-md:12px;
  --r-sm:10px;
  --r-pill:999px;
  --shadow:0 10px 30px rgba(0,0,0,.35);
  --glow:0 0 24px rgba(53,224,200,.22);
  --glow-strong:0 0 32px rgba(53,224,200,.40);
  --container:1200px;
  --pad-x:24px;
  --t:180ms;
  --ease:cubic-bezier(.22,.61,.36,1);
  --font-cn:system-ui,"PingFang SC","HarmonyOS Sans SC","Source Han Sans SC","Microsoft YaHei",sans-serif;
}

*,*::before,*::after{box-sizing:border-box}

html{-webkit-text-size-adjust:100%}

body{
  margin:0;
  padding:0;
  background:var(--bg-0);
  color:var(--ink);
  font-family:var(--font-cn);
  font-size:16px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}

img{max-width:100%;display:block;border-style:none}
a{color:var(--accent);text-decoration:none;transition:color var(--t) var(--ease)}
a:hover{color:var(--accent-2)}
ul,ol{margin:0;padding:0}
h1,h2,h3,h4{margin:0;line-height:1.32;font-weight:700;color:var(--ink)}
p{margin:0 0 14px}
p:last-child{margin-bottom:0}
button,input,select,textarea{font-family:inherit;font-size:inherit}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px;border-radius:6px}

.container{
  width:100%;
  max-width:var(--container);
  margin:0 auto;
  padding-left:var(--pad-x);
  padding-right:var(--pad-x);
}

.section{
  position:relative;
  padding:96px 0;
  border-top:1px solid var(--line-2);
}
.section-tight{padding-top:72px;padding-bottom:72px}

.section-head{max-width:780px;margin-bottom:44px}
.section-tag{
  display:inline-flex;
  align-items:center;
  gap:10px;
  font-size:13px;
  letter-spacing:1.5px;
  color:var(--accent);
  margin-bottom:16px;
}
.section-tag::before{
  content:"";
  width:24px;
  height:2px;
  border-radius:2px;
  background:linear-gradient(90deg,var(--accent),rgba(53,224,200,0));
}
.section-head h2{
  font-size:clamp(24px,2.6vw,34px);
  margin-bottom:16px;
}
.section-head p{color:var(--ink-2);font-size:16px;margin:0}

/* ---------- 顶部信息条 ---------- */
.topbar{
  background:#050A12;
  border-bottom:1px solid var(--line-2);
  font-size:13px;
}
.topbar-inner{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  min-height:38px;
}
.topbar-left{display:flex;align-items:center;gap:14px;min-width:0}
.topbar-brand{
  color:var(--ink);
  font-weight:600;
  white-space:nowrap;
}
.topbar-status{
  display:inline-flex;
  align-items:center;
  gap:7px;
  color:var(--ink-3);
  white-space:nowrap;
  overflow:hidden;
  text-overflow:ellipsis;
}
.topbar-status i{color:var(--accent);font-size:7px}
.topbar-right{display:flex;align-items:center;gap:20px;white-space:nowrap}
.topbar-right a{color:var(--ink-2);font-size:13px}
.topbar-right a:hover{color:var(--accent)}

/* ---------- 主导航 ---------- */
.site-header{
  position:sticky;
  top:0;
  z-index:80;
  background:rgba(7,14,24,.84);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  border-bottom:1px solid var(--line);
}
.nav-inner{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:20px;
  height:64px;
}
.brand{
  display:flex;
  flex-direction:column;
  line-height:1.1;
  flex:0 0 auto;
}
.brand-main{
  font-size:18px;
  font-weight:700;
  color:var(--ink);
  letter-spacing:.5px;
}
.brand-sub{
  font-size:11.5px;
  letter-spacing:4px;
  color:var(--accent);
  font-weight:500;
}
.nav-toggle{
  display:inline-flex;
  flex-direction:column;
  justify-content:center;
  gap:5px;
  width:44px;
  height:44px;
  padding:0 10px;
  background:var(--glass);
  border:1px solid var(--glass-line);
  border-radius:var(--r-sm);
  cursor:pointer;
  transition:border-color var(--t) var(--ease);
}
.nav-toggle span{
  display:block;
  height:2px;
  border-radius:2px;
  background:var(--ink);
  transition:background var(--t) var(--ease);
}
.nav-toggle:hover{border-color:var(--accent)}
.nav-toggle:hover span{background:var(--accent)}

.site-nav{
  position:absolute;
  top:100%;
  left:0;
  right:0;
  display:none;
  flex-direction:column;
  align-items:stretch;
  gap:8px;
  padding:16px 20px 22px;
  background:rgba(12,23,36,.98);
  border-bottom:1px solid var(--line);
  box-shadow:var(--shadow);
}
.site-nav.is-open{display:flex}
.nav-list{
  display:flex;
  flex-direction:column;
  gap:4px;
  list-style:none;
}
.nav-link{
  position:relative;
  display:flex;
  align-items:center;
  height:48px;
  padding:0 14px;
  border-radius:var(--r-sm);
  font-size:15px;
  color:var(--ink-2);
  transition:color var(--t) var(--ease),background var(--t) var(--ease);
}
.nav-link:hover{color:var(--ink);background:var(--glass)}
.nav-link.is-active{color:var(--accent)}
.nav-link.is-active::after{
  content:"";
  position:absolute;
  left:14px;
  right:14px;
  bottom:8px;
  height:2px;
  border-radius:2px;
  background:var(--accent);
  box-shadow:0 0 12px rgba(53,224,200,.6);
}
.nav-cta{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  height:48px;
  padding:0 24px;
  border-radius:var(--r-pill);
  background:linear-gradient(135deg,#35E0C8,#1FB8A4);
  color:#05121C;
  font-size:14px;
  font-weight:700;
  box-shadow:var(--glow);
  transition:transform var(--t) var(--ease),box-shadow var(--t) var(--ease),filter var(--t);
}
.nav-cta:hover{
  color:#05121C;
  filter:brightness(1.08);
  transform:translateY(-2px);
  box-shadow:var(--glow-strong);
}

/* ---------- 分类头图区 ---------- */
.page-hero{
  position:relative;
  padding:72px 0 88px;
  background-color:var(--bg-0);
  background-image:
    linear-gradient(100deg,rgba(7,14,24,.96) 0%,rgba(7,14,24,.80) 48%,rgba(7,14,24,.42) 100%),
    url('/assets/images/backpic/back-1.webp');
  background-size:cover;
  background-position:center;
  border-bottom:1px solid var(--line);
}
.page-hero::after{
  content:"";
  position:absolute;
  left:0;right:0;top:0;
  height:1px;
  background:linear-gradient(90deg,transparent,rgba(53,224,200,.65),transparent);
}
.breadcrumb{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:8px;
  font-size:13.5px;
  color:var(--ink-3);
  margin-bottom:28px;
}
.breadcrumb a{color:var(--ink-3)}
.breadcrumb a:hover{color:var(--accent)}
.breadcrumb .sep{color:rgba(255,255,255,.22)}
.breadcrumb .current{color:var(--ink)}

.hero-grid{
  display:grid;
  grid-template-columns:1.12fr .88fr;
  gap:52px;
  align-items:center;
}
.hero-tag{
  display:inline-flex;
  align-items:center;
  gap:8px;
  padding:5px 14px;
  border-radius:var(--r-pill);
  font-size:13px;
  color:var(--accent);
  background:rgba(53,224,200,.12);
  border:1px solid rgba(53,224,200,.28);
  margin-bottom:20px;
}
.hero-copy h1{
  font-size:clamp(30px,4.6vw,48px);
  line-height:1.28;
  margin-bottom:20px;
}
.hero-sub{
  max-width:660px;
  font-size:17px;
  color:var(--ink-2);
  margin-bottom:30px;
}
.hero-actions{
  display:flex;
  flex-wrap:wrap;
  gap:14px;
  margin-bottom:26px;
}
.hero-points{
  display:flex;
  flex-wrap:wrap;
  gap:10px;
  list-style:none;
}
.hero-points li{
  display:inline-flex;
  align-items:center;
  gap:8px;
  font-size:13.5px;
  color:var(--ink-2);
  padding:6px 14px;
  border-radius:var(--r-pill);
  background:rgba(255,255,255,.05);
  border:1px solid var(--line);
}
.hero-points i{color:var(--accent);font-size:11px}

.hero-figure{
  position:relative;
  margin:0;
  border-radius:var(--r-lg);
  overflow:hidden;
  border:1px solid var(--glass-line);
  box-shadow:var(--shadow);
}
.hero-figure img{
  width:100%;
  aspect-ratio:3/2;
  object-fit:cover;
}
.hero-figure figcaption{
  position:absolute;
  left:0;right:0;bottom:0;
  padding:26px 20px 14px;
  font-size:13px;
  color:var(--ink-2);
  background:linear-gradient(180deg,rgba(7,14,24,0),rgba(7,14,24,.88));
}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  height:48px;
  padding:0 26px;
  border-radius:var(--r-pill);
  font-size:15px;
  font-weight:600;
  border:1px solid transparent;
  cursor:pointer;
  white-space:nowrap;
  transition:transform var(--t) var(--ease),box-shadow var(--t) var(--ease),background var(--t) var(--ease),border-color var(--t) var(--ease),color var(--t) var(--ease),filter var(--t);
}
.btn-primary{
  background:linear-gradient(135deg,#35E0C8,#1FB8A4);
  color:#05121C;
  box-shadow:var(--glow);
}
.btn-primary:hover{
  color:#05121C;
  filter:brightness(1.08);
  transform:translateY(-2px);
  box-shadow:var(--glow-strong);
}
.btn-primary:active{transform:translateY(0);box-shadow:inset 0 2px 10px rgba(0,0,0,.32)}
.btn-ghost{
  background:var(--glass);
  border-color:var(--glass-line);
  color:var(--ink);
}
.btn-ghost:hover{
  color:var(--accent);
  border-color:var(--accent);
  transform:translateY(-2px);
}
.btn-ghost:active{transform:translateY(0)}

/* ---------- 徽章 ---------- */
.badge{
  display:inline-flex;
  align-items:center;
  gap:6px;
  padding:4px 12px;
  border-radius:var(--r-pill);
  font-size:12.5px;
  color:var(--accent);
  background:rgba(53,224,200,.12);
  border:1px solid rgba(53,224,200,.24);
  white-space:nowrap;
}
.badge-data{
  color:var(--data);
  background:rgba(255,181,71,.12);
  border-color:rgba(255,181,71,.26);
}

/* ---------- 步骤总览 ---------- */
.overview-panel{
  background:linear-gradient(160deg,rgba(30,90,168,.20),rgba(12,23,36,.92));
  border:1px solid var(--glass-line);
  border-radius:20px;
  padding:40px;
  box-shadow:var(--shadow);
}
.overview-head{max-width:700px;margin-bottom:32px}
.overview-head h2{font-size:clamp(22px,2.2vw,28px);margin-bottom:12px}
.overview-head p{color:var(--ink-2);font-size:15.5px;margin:0}
.overview-list{
  list-style:none;
  display:grid;
  grid-template-columns:repeat(6,minmax(0,1fr));
  gap:14px;
}
.overview-list li{
  background:rgba(255,255,255,.04);
  border:1px solid var(--line);
  border-radius:var(--r-md);
  padding:18px 14px;
  transition:transform var(--t) var(--ease),border-color var(--t) var(--ease),background var(--t) var(--ease);
}
.overview-list li:hover{
  transform:translateY(-2px);
  border-color:rgba(53,224,200,.4);
  background:rgba(53,224,200,.06);
}
.overview-list .num{
  display:block;
  font-size:13px;
  color:var(--accent);
  font-variant-numeric:tabular-nums;
  margin-bottom:8px;
}
.overview-list .txt{
  display:block;
  font-size:15px;
  font-weight:600;
  color:var(--ink);
  margin-bottom:6px;
}
.overview-list .time{
  display:block;
  font-size:12.5px;
  color:var(--ink-3);
}

/* ---------- 时间线 ---------- */
.timeline{
  list-style:none;
  position:relative;
  padding-left:0;
}
.timeline::before{
  content:"";
  position:absolute;
  left:26px;
  top:14px;
  bottom:26px;
  width:2px;
  border-radius:2px;
  background:linear-gradient(180deg,rgba(53,224,200,.72),rgba(53,224,200,.16) 60%,rgba(53,224,200,.02));
}
.timeline-item{
  position:relative;
  padding:0 0 26px 84px;
}
.timeline-index{
  position:absolute;
  left:0;
  top:0;
  width:54px;
  height:54px;
  display:flex;
  align-items:center;
  justify-content:center;
  border-radius:var(--r-lg);
  font-size:17px;
  font-weight:700;
  color:var(--accent);
  font-variant-numeric:tabular-nums;
  background:rgba(53,224,200,.08);
  border:1px solid rgba(53,224,200,.35);
  box-shadow:0 0 20px rgba(53,224,200,.14);
}
.timeline-card{
  background:var(--glass);
  border:1px solid var(--glass-line);
  border-radius:var(--r-lg);
  padding:26px 28px;
  backdrop-filter:blur(8px);
  -webkit-backdrop-filter:blur(8px);
  transition:transform var(--t) var(--ease),border-color var(--t) var(--ease),box-shadow var(--t) var(--ease);
}
.timeline-card:hover{
  transform:translateY(-2px);
  border-color:rgba(53,224,200,.42);
  box-shadow:0 12px 34px rgba(0,0,0,.34);
}
.timeline-card h3{
  font-size:20px;
  margin-bottom:12px;
}
.timeline-card p{
  color:var(--ink-2);
  font-size:15.5px;
  margin-bottom:0;
}
.check-list{
  list-style:none;
  display:flex;
  flex-wrap:wrap;
  gap:10px;
  margin-top:18px;
}
.check-list li{
  display:inline-flex;
  align-items:center;
  gap:7px;
  padding:5px 13px;
  border-radius:var(--r-pill);
  font-size:13px;
  color:var(--ink-2);
  background:rgba(255,255,255,.05);
  border:1px solid var(--line);
}
.check-list li::before{
  content:"✓";
  color:var(--accent);
  font-size:11px;
  line-height:1;
}
.timeline-meta{
  display:flex;
  flex-wrap:wrap;
  gap:10px;
  margin-top:18px;
  padding-top:16px;
  border-top:1px solid var(--line-2);
}

/* ---------- 卡片网格 ---------- */
.card-grid{
  display:grid;
  grid-template-columns:repeat(3,minmax(0,1fr));
  gap:24px;
}
.info-card{
  display:flex;
  flex-direction:column;
  background:var(--bg-2);
  border:1px solid var(--line);
  border-radius:var(--r-lg);
  padding:28px 26px;
  transition:transform var(--t) var(--ease),border-color var(--t) var(--ease),box-shadow var(--t) var(--ease);
}
.info-card:hover{
  transform:translateY(-3px);
  border-color:rgba(53,224,200,.42);
  box-shadow:0 16px 36px rgba(0,0,0,.36);
}
.info-icon{
  width:42px;
  height:42px;
  display:flex;
  align-items:center;
  justify-content:center;
  border-radius:var(--r-sm);
  background:rgba(30,90,168,.28);
  border:1px solid rgba(53,224,200,.32);
  color:var(--accent);
  font-size:16px;
  margin-bottom:18px;
}
.info-card h3{font-size:19px;margin-bottom:12px}
.info-card p{color:var(--ink-2);font-size:15px;margin-bottom:0}
.info-card .card-foot{
  margin-top:20px;
  padding-top:16px;
  border-top:1px solid var(--line-2);
  font-size:14px;
  color:var(--accent);
}
.info-card .card-foot i{transition:transform var(--t) var(--ease)}
.info-card:hover .card-foot i{transform:translateX(5px)}

/* ---------- FAQ ---------- */
.faq-list{max-width:900px}
.faq-item{
  background:var(--glass);
  border:1px solid var(--glass-line);
  border-radius:14px;
  margin-bottom:14px;
  overflow:hidden;
  transition:border-color var(--t) var(--ease),background var(--t) var(--ease),box-shadow var(--t) var(--ease);
}
.faq-item:hover{border-color:rgba(53,224,200,.36)}
.faq-item[open]{
  border-color:rgba(53,224,200,.44);
  box-shadow:inset 3px 0 0 var(--accent);
}
.faq-q{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:18px;
  padding:20px 24px;
  font-size:17px;
  font-weight:600;
  color:var(--ink);
  cursor:pointer;
  list-style:none;
}
.faq-q::-webkit-details-marker{display:none}
.faq-q::after{
  content:"+";
  flex:0 0 auto;
  font-size:22px;
  font-weight:400;
  color:var(--accent);
  line-height:1;
  transition:transform var(--t) var(--ease);
}
.faq-item[open] .faq-q::after{transform:rotate(45deg)}
.faq-a{
  padding:0 24px 22px;
  font-size:15.5px;
  line-height:1.85;
  color:var(--ink-2);
  max-width:760px;
}

/* ---------- 转化区 ---------- */
.cta-panel{
  background:linear-gradient(160deg,rgba(30,90,168,.24),rgba(12,23,36,.94));
  border:1px solid var(--glass-line);
  border-radius:20px;
  padding:44px;
  box-shadow:var(--shadow);
}
.cta-grid{
  display:grid;
  grid-template-columns:1fr 1.15fr;
  gap:48px;
  align-items:start;
}
.cta-copy h2{font-size:clamp(23px,2.3vw,30px);margin-bottom:16px}
.cta-copy > p{color:var(--ink-2);font-size:15.5px;margin-bottom:24px}
.tip-list{list-style:none;display:grid;gap:12px}
.tip-list li{
  display:flex;
  gap:12px;
  align-items:flex-start;
  font-size:14.5px;
  color:var(--ink-2);
}
.tip-list i{color:var(--accent);margin-top:6px;font-size:12px}

.entry-form{
  background:rgba(7,14,24,.55);
  border:1px solid var(--glass-line);
  border-radius:var(--r-lg);
  padding:28px;
}
.field{margin-bottom:18px}
.field label{
  display:block;
  font-size:14px;
  color:var(--ink-2);
  margin-bottom:8px;
}
.field input,
.field select,
.field textarea{
  width:100%;
  height:48px;
  padding:0 14px;
  color:var(--ink);
  background:rgba(7,14,24,.75);
  border:1px solid var(--line);
  border-radius:var(--r-sm);
  font-size:15px;
  transition:border-color var(--t) var(--ease),box-shadow var(--t) var(--ease);
}
.field textarea{
  height:auto;
  min-height:112px;
  padding:12px 14px;
  line-height:1.7;
  resize:vertical;
}
.field select{
  appearance:none;
  -webkit-appearance:none;
  background-image:linear-gradient(45deg,transparent 50%,var(--ink-3) 50%),linear-gradient(135deg,var(--ink-3) 50%,transparent 50%);
  background-position:calc(100% - 20px) 21px,calc(100% - 14px) 21px;
  background-size:6px 6px,6px 6px;
  background-repeat:no-repeat;
}
.field input::placeholder,
.field textarea::placeholder{color:rgba(127,147,166,.75)}
.field input:focus,
.field select:focus,
.field textarea:focus{
  outline:none;
  border-color:var(--accent);
  box-shadow:0 0 0 3px rgba(53,224,200,.16);
}
.form-actions{
  display:flex;
  flex-wrap:wrap;
  gap:12px;
  margin-top:24px;
}
.form-note{
  margin-top:16px;
  font-size:13px;
  color:var(--ink-3);
}

/* ---------- 页脚 ---------- */
.site-footer{
  position:relative;
  margin-top:0;
  padding:76px 0 0;
  background:var(--bg-1);
  border-top:1px solid var(--line);
}
.site-footer::before{
  content:"";
  position:absolute;
  left:0;right:0;top:0;
  height:1px;
  background:linear-gradient(90deg,transparent,rgba(53,224,200,.7),transparent);
}
.footer-grid{
  display:grid;
  grid-template-columns:repeat(12,minmax(0,1fr));
  gap:34px;
  margin:0;
}
.footer-grid > .cell{width:auto;padding:0}
.footer-grid > .large-4{grid-column:span 4}
.footer-grid > .large-2{grid-column:span 2}
.footer-grid > .large-3{grid-column:span 3}
.footer-brand{
  font-size:20px;
  font-weight:700;
  color:var(--ink);
  margin-bottom:16px;
  line-height:1.3;
}
.footer-brand span{
  display:block;
  font-size:12px;
  letter-spacing:4px;
  font-weight:500;
  color:var(--accent);
  margin-top:4px;
}
.footer-col p{
  color:var(--ink-3);
  font-size:14px;
  line-height:1.85;
  max-width:330px;
}
.footer-col h4{
  font-size:15px;
  color:var(--ink);
  margin-bottom:18px;
}
.footer-links{list-style:none}
.footer-links li{margin-bottom:11px}
.footer-links a{color:var(--ink-3);font-size:14px}
.footer-links a:hover{color:var(--accent)}
.footer-contact{list-style:none}
.footer-contact li{
  display:flex;
  gap:10px;
  align-items:flex-start;
  color:var(--ink-3);
  font-size:14px;
  margin-bottom:13px;
}
.footer-contact i{color:var(--accent);margin-top:6px;font-size:12px}
.footer-bottom{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  justify-content:space-between;
  gap:12px;
  margin-top:52px;
  padding:22px 0;
  border-top:1px solid var(--line-2);
  font-size:13px;
  color:var(--ink-3);
}
.footer-bottom a{color:var(--ink-3)}
.footer-bottom a:hover{color:var(--accent)}

/* ---------- 响应式 ---------- */
@media screen and (max-width:1024px){
  .section{padding:72px 0}
  .section-tight{padding-top:60px;padding-bottom:60px}
  .hero-grid{grid-template-columns:1fr;gap:36px}
  .overview-panel{padding:32px 26px}
  .overview-list{grid-template-columns:repeat(3,minmax(0,1fr))}
  .card-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .cta-grid{grid-template-columns:1fr;gap:34px}
  .cta-panel{padding:34px 26px}
  .footer-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:30px}
  .footer-grid > .cell{grid-column:span 1}
}

@media screen and (min-width:1025px){
  .nav-toggle{display:none}
  .site-nav{
    position:static;
    display:flex;
    flex-direction:row;
    align-items:center;
    gap:22px;
    padding:0;
    background:transparent;
    border:0;
    box-shadow:none;
  }
  .nav-list{flex-direction:row;align-items:center;gap:4px}
  .nav-link{height:40px}
  .nav-link.is-active::after{bottom:6px}
  .nav-cta{height:40px;padding:0 22px}
}

@media screen and (max-width:768px){
  :root{--pad-x:16px}
  .container{padding-left:16px;padding-right:16px}
  .topbar-status{display:none}
  .topbar-right{gap:14px}
  .topbar-right a:not(:last-child){display:none}
  .nav-inner{height:56px}
  .brand-main{font-size:16.5px}
  .brand-sub{letter-spacing:3px;font-size:11px}
  .page-hero{padding:48px 0 60px}
  .section{padding:56px 0}
  .section-tight{padding-top:48px;padding-bottom:48px}
  .section-head{margin-bottom:32px}
  .hero-actions .btn{width:100%}
  .overview-list{grid-template-columns:repeat(2,minmax(0,1fr))}
  .card-grid{grid-template-columns:1fr}
  .timeline::before{left:18px}
  .timeline-item{padding:0 0 22px 56px}
  .timeline-index{width:38px;height:38px;border-radius:12px;font-size:14px}
  .timeline-card{padding:22px 20px}
  .timeline-card h3{font-size:18px}
  .entry-form{padding:22px 18px}
  .form-actions .btn{width:100%}
  .faq-q{padding:18px 18px;font-size:16px}
  .faq-a{padding:0 18px 20px}
  .cta-panel{padding:28px 20px}
  .overview-panel{padding:26px 20px}
  .site-footer{padding-top:56px}
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .footer-bottom{margin-top:36px}
}

@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{
    animation-duration:.01ms !important;
    animation-iteration-count:1 !important;
    transition-duration:.01ms !important;
    scroll-behavior:auto !important;
  }
}

/* roulang page: category3 */
:root{
  --bg-0:#070E18;
  --bg-1:#0C1724;
  --bg-2:#12202E;
  --primary:#1E5AA8;
  --accent:#35E0C8;
  --accent-2:#22C4AE;
  --data:#FFB547;
  --ink:#E8F0F7;
  --ink-2:#B9C9D8;
  --ink-3:#7F93A6;
  --line:rgba(255,255,255,.10);
  --glass:rgba(255,255,255,.06);
  --glass-line:rgba(255,255,255,.14);
  --r-lg:16px;
  --r-md:12px;
  --r-sm:10px;
  --r-pill:999px;
  --sh:0 10px 30px rgba(0,0,0,.35);
  --glow:0 0 24px rgba(53,224,200,.22);
  --nav-h:64px;
  --sec-pad:96px;
  --font:system-ui,-apple-system,"PingFang SC","HarmonyOS Sans SC","Source Han Sans SC","Microsoft YaHei",sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  background:var(--bg-0);
  color:var(--ink);
  font-family:var(--font);
  font-size:17px;
  line-height:1.85;
  overflow-x:hidden;
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4{margin:0;line-height:1.32;font-weight:700;color:var(--ink);letter-spacing:.01em}
p{margin:0 0 16px}
p:last-child{margin-bottom:0}
a{color:var(--accent);text-decoration:none;transition:color .18s ease-out}
a:hover{color:#6BF0DD}
ul,ol{margin:0;padding:0;list-style:none}
img{max-width:100%;height:auto;display:block}
button{font-family:inherit}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px}
.num{font-variant-numeric:tabular-nums}

/* ---------- 顶部信息条 ---------- */
.kai-topbar{
  background:#050B13;
  border-bottom:1px solid var(--line);
  font-size:13px;
  color:var(--ink-3);
}
.kai-topbar .topbar-inner{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  min-height:36px;
  padding-top:6px;
  padding-bottom:6px;
}
.topbar-left{display:flex;align-items:center;gap:10px;min-width:0}
.topbar-mark{color:var(--ink-2);font-weight:600;white-space:nowrap}
.topbar-sep{color:rgba(255,255,255,.18)}
.topbar-status{display:inline-flex;align-items:center;gap:7px;color:var(--ink-3);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.status-dot{width:7px;height:7px;border-radius:50%;background:var(--accent);box-shadow:0 0 10px rgba(53,224,200,.7);flex:0 0 auto}
.topbar-right{display:flex;align-items:center;gap:18px;white-space:nowrap}
.topbar-right a{color:var(--ink-2);font-size:13px}
.topbar-right a:hover{color:var(--accent)}

/* ---------- 主导航 ---------- */
.site-header{
  position:sticky;
  top:0;
  z-index:60;
  background:rgba(7,14,24,.84);
  -webkit-backdrop-filter:blur(14px);
  backdrop-filter:blur(14px);
  border-bottom:1px solid var(--line);
}
.nav-inner{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:20px;
  height:var(--nav-h);
}
.brand{
  display:flex;
  flex-direction:column;
  line-height:1.1;
  flex:0 0 auto;
}
.brand-main{font-size:17px;font-weight:700;color:var(--ink);letter-spacing:.02em}
.brand-sub{font-size:11px;color:var(--accent);letter-spacing:.3em;margin-top:3px}
.site-nav{display:flex;align-items:center;gap:22px}
.nav-list{display:flex;align-items:center;gap:4px}
.nav-link{
  display:inline-block;
  padding:11px 14px;
  border-radius:var(--r-sm);
  color:var(--ink-2);
  font-size:15px;
  position:relative;
  transition:color .18s ease-out,background .18s ease-out;
}
.nav-link:hover{color:var(--ink);background:var(--glass)}
.nav-link.is-active{color:var(--ink);background:rgba(53,224,200,.08)}
.nav-link.is-active::after{
  content:"";
  position:absolute;
  left:14px;right:14px;bottom:4px;height:2px;
  border-radius:2px;
  background:var(--accent);
  box-shadow:0 0 12px rgba(53,224,200,.7);
}
.nav-cta{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  min-height:40px;
  padding:0 20px;
  border-radius:var(--r-pill);
  font-size:14px;
  font-weight:600;
  color:#05121C;
  background:linear-gradient(135deg,#4DF2DA,#22C4AE);
  box-shadow:var(--glow);
  transition:transform .18s ease-out,filter .18s ease-out,box-shadow .18s ease-out;
}
.nav-cta:hover{color:#05121C;filter:brightness(1.08);transform:translateY(-2px);box-shadow:0 0 28px rgba(53,224,200,.34)}
.nav-toggle{
  display:none;
  width:44px;height:44px;
  border-radius:var(--r-sm);
  border:1px solid var(--glass-line);
  background:var(--glass);
  cursor:pointer;
  padding:0;
  position:relative;
}
.nav-toggle span{
  display:block;
  width:18px;height:2px;
  margin:4px auto;
  border-radius:2px;
  background:var(--ink);
  transition:transform .2s ease-out,opacity .2s ease-out;
}
.nav-toggle.is-open span:nth-child(1){transform:translateY(6px) rotate(45deg)}
.nav-toggle.is-open span:nth-child(2){opacity:0}
.nav-toggle.is-open span:nth-child(3){transform:translateY(-6px) rotate(-45deg)}

/* ---------- 分类页头图区 ---------- */
.page-hero{
  position:relative;
  padding:56px 0 64px;
  background-color:#08111d;
  background-image:
    linear-gradient(100deg,rgba(7,14,24,.96) 0%,rgba(7,14,24,.78) 46%,rgba(7,14,24,.42) 100%),
    url("/assets/images/backpic/back-3.webp");
  background-size:cover;
  background-position:center;
  border-bottom:1px solid var(--line);
  overflow:hidden;
}
.page-hero::after{
  content:"";
  position:absolute;
  inset:0;
  background-image:
    linear-gradient(rgba(255,255,255,.032) 1px,transparent 1px),
    linear-gradient(90deg,rgba(255,255,255,.032) 1px,transparent 1px);
  background-size:64px 64px;
  pointer-events:none;
  opacity:.55;
}
.page-hero .hero-inner{position:relative;z-index:2;max-width:760px}
.breadcrumb{
  display:flex;
  align-items:center;
  gap:8px;
  font-size:13.5px;
  color:var(--ink-3);
  margin-bottom:22px;
}
.breadcrumb a{color:var(--ink-3)}
.breadcrumb a:hover{color:var(--accent)}
.breadcrumb .sep{color:rgba(255,255,255,.22)}
.breadcrumb .current{color:var(--ink-2)}
.page-hero h1{
  font-size:clamp(30px,4.6vw,46px);
  letter-spacing:.01em;
  margin-bottom:18px;
}
.page-hero h1 .hl{
  color:var(--accent);
  text-shadow:0 0 26px rgba(53,224,200,.28);
}
.hero-sub{
  font-size:17px;
  color:var(--ink-2);
  max-width:660px;
  margin-bottom:26px;
}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:34px}
.hero-facts{
  display:flex;
  flex-wrap:wrap;
  gap:12px;
}
.fact-chip{
  display:inline-flex;
  align-items:baseline;
  gap:8px;
  padding:9px 16px;
  border-radius:var(--r-pill);
  background:var(--glass);
  border:1px solid var(--glass-line);
  font-size:13.5px;
  color:var(--ink-2);
}
.fact-chip b{color:var(--accent);font-size:16px;font-weight:700}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:9px;
  min-height:46px;
  padding:0 24px;
  border-radius:var(--r-pill);
  border:1px solid transparent;
  font-size:15px;
  font-weight:600;
  cursor:pointer;
  transition:transform .18s ease-out,filter .18s ease-out,box-shadow .18s ease-out,border-color .18s ease-out,background .18s ease-out;
}
.btn-primary{
  background:linear-gradient(135deg,#4DF2DA,#22C4AE);
  color:#05121C;
  box-shadow:var(--glow);
}
.btn-primary:hover{color:#05121C;filter:brightness(1.08);transform:translateY(-2px);box-shadow:0 0 30px rgba(53,224,200,.36)}
.btn-primary:active{transform:translateY(0);box-shadow:inset 0 2px 8px rgba(0,0,0,.28)}
.btn-ghost{
  background:var(--glass);
  border-color:var(--glass-line);
  color:var(--ink);
}
.btn-ghost:hover{color:var(--ink);border-color:rgba(53,224,200,.55);transform:translateY(-2px)}
.btn-ghost:active{transform:translateY(0)}
.btn:focus-visible,.nav-cta:focus-visible,.nav-link:focus-visible,.nav-toggle:focus-visible,
.acc-btn:focus-visible,.qa-card a:focus-visible{
  outline:2px solid var(--accent);
  outline-offset:2px;
}

/* ---------- 通用区块 ---------- */
.section{padding:var(--sec-pad) 0;position:relative}
.section + .section{border-top:1px solid rgba(255,255,255,.06)}
.section-alt{background:var(--bg-1)}
.section-head{max-width:760px;margin-bottom:48px}
.eyebrow{
  display:inline-block;
  font-size:12.5px;
  letter-spacing:.16em;
  color:var(--accent);
  background:rgba(53,224,200,.10);
  border:1px solid rgba(53,224,200,.24);
  border-radius:var(--r-pill);
  padding:5px 13px;
  margin-bottom:16px;
}
.section-head h2{font-size:clamp(24px,2.6vw,34px);margin-bottom:14px}
.section-desc{color:var(--ink-2);font-size:16px;margin:0}
.section-desc a{text-decoration:underline;text-underline-offset:3px;text-decoration-thickness:1px}

/* ---------- 对比表 ---------- */
.table-shell{
  border:1px solid var(--line);
  border-radius:var(--r-lg);
  background:var(--bg-1);
  box-shadow:var(--sh);
  overflow:hidden;
}
.table-scroll{overflow-x:auto;-webkit-overflow-scrolling:touch}
table.kai-table{width:100%;border-collapse:collapse;min-width:780px}
table.kai-table thead th{
  position:sticky;
  top:var(--nav-h);
  z-index:3;
  background:#0F1D2B;
  color:var(--ink-2);
  font-size:13px;
  font-weight:600;
  letter-spacing:.06em;
  text-align:left;
  padding:16px 18px;
  border-bottom:1px solid rgba(53,224,200,.24);
  white-space:nowrap;
}
table.kai-table thead th:first-child{color:var(--ink-3)}
table.kai-table tbody td{
  padding:15px 18px;
  font-size:15px;
  color:var(--ink-2);
  border-bottom:1px solid rgba(255,255,255,.06);
  vertical-align:top;
}
table.kai-table tbody tr:last-child td{border-bottom:0}
table.kai-table tbody tr:hover td{background:rgba(53,224,200,.035)}
table.kai-table td.row-title{color:var(--ink);font-weight:600;white-space:nowrap}
table.kai-table td .cell-strong{color:var(--ink)}
.pill{
  display:inline-block;
  font-size:12.5px;
  line-height:1.6;
  padding:3px 11px;
  border-radius:var(--r-pill);
  background:rgba(53,224,200,.12);
  border:1px solid rgba(53,224,200,.22);
  color:var(--accent);
  white-space:nowrap;
}
.pill-data{background:rgba(255,181,71,.12);border-color:rgba(255,181,71,.26);color:var(--data)}

/* ---------- 差异说明 ---------- */
.diff-feature{
  background:var(--bg-2);
  border:1px solid var(--line);
  border-radius:var(--r-lg);
  padding:26px;
  box-shadow:var(--sh);
  margin-bottom:24px;
}
.diff-feature img{
  width:100%;
  aspect-ratio:16/9;
  object-fit:cover;
  border-radius:var(--r-md);
  border:1px solid var(--glass-line);
}
.diff-card{
  height:100%;
  background:var(--bg-2);
  border:1px solid var(--line);
  border-radius:var(--r-lg);
  padding:26px;
  transition:transform .2s ease-out,border-color .2s ease-out,box-shadow .2s ease-out;
}
.diff-card:hover{transform:translateY(-2px);border-color:rgba(53,224,200,.35);box-shadow:var(--sh),0 0 24px rgba(53,224,200,.10)}
.diff-card h3,.diff-feature h3{font-size:20px;margin:14px 0 12px}
.diff-card p,.diff-feature p{color:var(--ink-2);font-size:15.5px;line-height:1.85}
.icon-box{
  width:40px;height:40px;
  display:inline-flex;
  align-items:center;
  justify-content:center;
  border-radius:var(--r-sm);
  background:rgba(30,90,168,.22);
  border:1px solid rgba(53,224,200,.28);
  color:var(--accent);
  font-size:16px;
}
.tick-list{margin-top:14px}
.tick-list li{
  position:relative;
  padding-left:24px;
  font-size:15px;
  color:var(--ink-2);
  margin-bottom:9px;
  line-height:1.75;
}
.tick-list li:last-child{margin-bottom:0}
.tick-list li::before{
  content:"\f00c";
  font-family:"Font Awesome 6 Free","Font Awesome 6 Pro",sans-serif;
  font-weight:900;
  position:absolute;
  left:0;top:1px;
  font-size:12px;
  color:var(--accent);
}

/* ---------- 双栏问答 ---------- */
.qa-grid{
  display:grid;
  grid-template-columns:repeat(2,minmax(0,1fr));
  gap:20px;
}
.qa-card{
  background:var(--bg-2);
  border:1px solid var(--line);
  border-radius:var(--r-lg);
  padding:24px 24px 22px;
  transition:transform .2s ease-out,border-color .2s ease-out,box-shadow .2s ease-out;
}
.qa-card:hover{transform:translateY(-2px);border-color:rgba(53,224,200,.35);box-shadow:0 0 24px rgba(53,224,200,.10)}
.qa-q{
  display:flex;
  gap:12px;
  align-items:flex-start;
  font-size:17px;
  font-weight:600;
  color:var(--ink);
  line-height:1.55;
  margin-bottom:12px;
}
.qa-mark{
  flex:0 0 auto;
  margin-top:1px;
  width:26px;height:26px;
  border-radius:8px;
  display:inline-flex;
  align-items:center;
  justify-content:center;
  font-size:13px;
  font-weight:700;
  color:var(--accent);
  background:rgba(53,224,200,.12);
  border:1px solid rgba(53,224,200,.24);
}
.qa-a{color:var(--ink-2);font-size:15.5px;line-height:1.85}

/* ---------- 手风琴 ---------- */
.sub-head{
  display:flex;
  align-items:baseline;
  gap:14px;
  flex-wrap:wrap;
  margin:56px 0 22px;
}
.sub-head h3{font-size:20px}
.sub-head span{font-size:14px;color:var(--ink-3)}
.acc-item{
  background:var(--glass);
  border:1px solid var(--line);
  border-radius:14px;
  margin-bottom:12px;
  overflow:hidden;
  transition:border-color .2s ease-out,box-shadow .2s ease-out;
}
.acc-item.is-open{
  border-color:rgba(53,224,200,.38);
  box-shadow:inset 3px 0 0 var(--accent),0 0 24px rgba(53,224,200,.12);
}
.acc-btn{
  width:100%;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:18px;
  padding:18px 22px;
  background:transparent;
  border:0;
  color:var(--ink);
  font-size:17px;
  line-height:1.55;
  text-align:left;
  cursor:pointer;
}
.acc-icon{
  flex:0 0 auto;
  width:26px;height:26px;
  display:inline-flex;
  align-items:center;
  justify-content:center;
  border-radius:50%;
  border:1px solid var(--glass-line);
  color:var(--accent);
  font-size:14px;
  transition:transform .2s ease-out;
}
.acc-item.is-open .acc-icon{transform:rotate(45deg)}
.acc-panel{
  max-height:0;
  overflow:hidden;
  transition:max-height .22s ease-out;
}
.acc-panel-inner{
  padding:0 22px 20px;
  color:var(--ink-2);
  font-size:15.5px;
  line-height:1.85;
}

/* ---------- 适用参考 ---------- */
.fit-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px}
.fit-card{
  background:linear-gradient(180deg,rgba(53,224,200,.06),rgba(255,255,255,.02));
  border:1px solid var(--glass-line);
  border-radius:var(--r-lg);
  padding:26px 24px;
  display:flex;
  flex-direction:column;
  gap:14px;
  transition:transform .2s ease-out,border-color .2s ease-out;
}
.fit-card:hover{transform:translateY(-2px);border-color:rgba(53,224,200,.4)}
.fit-card h3{font-size:19px}
.fit-card p{color:var(--ink-2);font-size:15px;margin:0}
.fit-tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:auto;padding-top:6px}
.tag{
  font-size:12.5px;
  padding:4px 11px;
  border-radius:var(--r-pill);
  background:rgba(255,255,255,.06);
  border:1px solid var(--line);
  color:var(--ink-2);
}

/* ---------- CTA 表单 ---------- */
.cta-section{
  background:
    radial-gradient(760px 380px at 12% 0%,rgba(30,90,168,.24),transparent 68%),
    radial-gradient(620px 340px at 92% 100%,rgba(53,224,200,.14),transparent 70%),
    var(--bg-1);
}
.cta-grid{
  display:grid;
  grid-template-columns:minmax(0,1.1fr) minmax(0,.9fr);
  gap:32px;
  align-items:start;
}
.glass-form{
  background:var(--glass);
  border:1px solid var(--glass-line);
  border-radius:var(--r-lg);
  padding:28px;
  -webkit-backdrop-filter:blur(10px);
  backdrop-filter:blur(10px);
  box-shadow:var(--sh);
}
.form-row{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px}
.form-field{margin-bottom:18px}
.form-field label{display:block;font-size:14px;color:var(--ink-2);margin-bottom:8px}
.form-field input,
.form-field select,
.form-field textarea{
  width:100%;
  background:rgba(7,14,24,.66);
  border:1px solid var(--line);
  border-radius:var(--r-sm);
  color:var(--ink);
  font-size:15px;
  font-family:inherit;
  padding:0 14px;
  height:48px;
  transition:border-color .18s ease-out,box-shadow .18s ease-out;
}
.form-field textarea{height:auto;min-height:120px;padding:13px 14px;line-height:1.75;resize:vertical}
.form-field select{appearance:none;background-image:linear-gradient(45deg,transparent 50%,var(--ink-3) 50%),linear-gradient(135deg,var(--ink-3) 50%,transparent 50%);background-position:calc(100% - 20px) 21px,calc(100% - 14px) 21px;background-size:6px 6px,6px 6px;background-repeat:no-repeat}
.form-field input:focus,
.form-field select:focus,
.form-field textarea:focus{
  outline:none;
  border-color:var(--accent);
  box-shadow:0 0 0 3px rgba(53,224,200,.18);
}
.form-field input::placeholder,
.form-field textarea::placeholder{color:rgba(127,147,166,.75)}
.form-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:6px}
.form-note{
  margin-top:16px;
  font-size:14px;
  color:var(--accent);
  display:none;
}
.form-note.is-show{display:block}
.trust-list{display:grid;gap:14px}
.trust-item{
  display:flex;
  gap:14px;
  align-items:flex-start;
  background:rgba(255,255,255,.04);
  border:1px solid var(--line);
  border-radius:var(--r-md);
  padding:18px 20px;
}
.trust-item i{color:var(--accent);font-size:16px;margin-top:4px}
.trust-item strong{display:block;font-size:15.5px;color:var(--ink);margin-bottom:4px}
.trust-item span{font-size:14px;color:var(--ink-3);line-height:1.7}

/* ---------- 页脚 ---------- */
.site-footer{
  position:relative;
  background:#050B13;
  padding-top:64px;
}
.site-footer::before{
  content:"";
  position:absolute;
  top:0;left:0;right:0;
  height:1px;
  background:linear-gradient(90deg,transparent,rgba(53,224,200,.55),transparent);
}
.footer-grid{padding-bottom:8px}
.footer-col{margin-bottom:36px}
.footer-brand{
  display:flex;
  flex-direction:column;
  font-size:19px;
  font-weight:700;
  color:var(--ink);
  line-height:1.3;
  margin-bottom:16px;
}
.footer-brand span{font-size:12px;color:var(--accent);letter-spacing:.3em;margin-top:6px}
.footer-col p{color:var(--ink-3);font-size:14.5px;line-height:1.8;max-width:320px}
.footer-col h4{font-size:15px;margin-bottom:18px;color:var(--ink)}
.footer-links li{margin-bottom:11px}
.footer-links a{color:var(--ink-3);font-size:14.5px}
.footer-links a:hover{color:var(--accent)}
.footer-contact li{display:flex;gap:10px;align-items:flex-start;margin-bottom:12px;color:var(--ink-3);font-size:14.5px;line-height:1.7}
.footer-contact i{color:var(--accent);margin-top:5px;font-size:13px}
.footer-bottom{
  display:flex;
  flex-wrap:wrap;
  gap:12px;
  align-items:center;
  justify-content:space-between;
  border-top:1px solid var(--line);
  margin-top:24px;
  padding:20px 0 26px;
  font-size:13px;
  color:var(--ink-3);
}
.footer-bottom a{color:var(--ink-3)}
.footer-bottom a:hover{color:var(--accent)}

/* ---------- 响应式 ---------- */
@media (max-width:1023px){
  :root{--nav-h:56px;--sec-pad:72px}
  .nav-toggle{display:block}
  .site-nav{
    position:absolute;
    top:var(--nav-h);
    left:0;right:0;
    flex-direction:column;
    align-items:stretch;
    gap:8px;
    padding:16px 20px 20px;
    background:rgba(9,18,30,.98);
    border-bottom:1px solid var(--line);
    box-shadow:0 18px 36px rgba(0,0,0,.45);
    display:none;
  }
  .site-nav.is-open{display:flex}
  .nav-list{flex-direction:column;align-items:stretch;gap:4px}
  .nav-link{padding:13px 14px;font-size:16px}
  .nav-link.is-active::after{left:14px;right:auto;width:22px;bottom:8px}
  .nav-cta{width:100%;min-height:46px}
  .qa-grid,.fit-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .cta-grid{grid-template-columns:minmax(0,1fr);gap:24px}
}
@media (max-width:900px){
  .fit-grid{grid-template-columns:minmax(0,1fr)}
}
@media (max-width:767px){
  :root{--sec-pad:56px}
  body{font-size:16px}
  .container{padding:0 16px}
  .topbar-right a:not(:last-child){display:none}
  .topbar-status{display:none}
  .page-hero{padding:40px 0 48px}
  .hero-actions{flex-direction:column;align-items:stretch}
  .hero-actions .btn{width:100%}
  .qa-grid{grid-template-columns:minmax(0,1fr)}
  .form-row{grid-template-columns:minmax(0,1fr)}
  .section-head{margin-bottom:32px}
  .footer-bottom{flex-direction:column;align-items:flex-start}

  /* 对比表转卡片化堆叠 */
  .table-shell{border:0;background:transparent;box-shadow:none;border-radius:0}
  .table-scroll{overflow:visible}
  table.kai-table{min-width:0;display:block}
  table.kai-table thead{display:none}
  table.kai-table tbody{display:block}
  table.kai-table tbody tr{
    display:block;
    background:var(--bg-1);
    border:1px solid var(--line);
    border-radius:var(--r-md);
    margin-bottom:14px;
    padding:6px 0;
  }
  table.kai-table tbody td{
    display:flex;
    align-items:flex-start;
    justify-content:space-between;
    gap:16px;
    padding:10px 16px;
    border-bottom:0;
    font-size:14.5px;
  }
  table.kai-table tbody td::before{
    content:attr(data-label);
    flex:0 0 auto;
    color:var(--ink-3);
    font-size:13px;
    line-height:1.7;
  }
  table.kai-table td.row-title{
    color:var(--accent);
    font-size:15.5px;
    border-bottom:1px solid rgba(255,255,255,.08);
    padding-bottom:12px;
    margin-bottom:4px;
  }
  table.kai-table td.row-title::before{color:var(--ink-3)}
  table.kai-table tbody tr:hover td{background:transparent}
}
@media (max-width:520px){
  .brand-main{font-size:15.5px}
  .fact-chip{padding:8px 13px;font-size:13px}
  .glass-form{padding:20px}
  .qa-card,.diff-card,.diff-feature{padding:20px}
  .acc-btn{padding:16px 16px;font-size:16px}
  .acc-panel-inner{padding:0 16px 18px}
}
@media (prefers-reduced-motion:reduce){
  *{transition:none !important;animation:none !important}
}