/* roulang page: index */
:root{
  --bs-primary:#35C8E8;
  --bs-primary-rgb:53,200,232;
  --bg-base:#070C1A;
  --bg-section:#0B1226;
  --card-solid:#101A33;
  --card-input:#0D1528;
  --brand:#35C8E8;
  --brand-deep:#1E9AC4;
  --aurora:#8B5CF6;
  --gold:#FFC46B;
  --text:#E6ECF7;
  --text-2:#97A6C4;
  --text-3:#6E7C99;
  --line:rgba(255,255,255,.08);
  --glass-line:rgba(255,255,255,.10);
  --radius-card:16px;
  --radius-btn:12px;
  --radius-input:10px;
  --shadow-card:0 12px 28px rgba(0,0,0,.35);
  --shadow-soft:0 6px 18px rgba(0,0,0,.22);
  --ease:220ms cubic-bezier(.4,0,.2,1);
}
*{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body{
  margin:0;
  background:var(--bg-base);
  color:var(--text);
  font-family:"PingFang SC","HarmonyOS Sans","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",Inter,sans-serif;
  font-size:16px;
  line-height:1.85;
  font-weight:400;
  overflow-x:hidden;
}
img{max-width:100%;height:auto;display:block;border-radius:12px;}
a{color:var(--brand);text-decoration:none;text-underline-offset:3px;transition:color var(--ease);}
a:hover{color:#7fdcf5;text-decoration:underline;}
h1,h2,h3,h4,h5,p,ul,ol{margin:0;}
ul{padding-left:0;list-style:none;}
button,input,select,textarea{font:inherit;color:inherit;}
:focus-visible{outline:2px solid var(--brand);outline-offset:3px;border-radius:6px;}
.container{max-width:1240px;padding-left:20px;padding-right:20px;}
@media (min-width:1400px){.container{max-width:1320px;}}
.nx-section{padding:56px 0;}
@media (min-width:768px){.nx-section{padding:72px 0;}}
@media (min-width:992px){.nx-section{padding:96px 0;}}
.nx-section--alt{background:var(--bg-section);}
.nx-section--line{border-top:1px solid var(--line);}
h1{font-size:clamp(30px,4.2vw,50px);font-weight:700;line-height:1.22;letter-spacing:-.02em;}
h2{font-size:clamp(23px,3vw,34px);font-weight:700;line-height:1.3;letter-spacing:-.01em;}
h3{font-size:21px;font-weight:600;line-height:1.45;}
h4{font-size:17px;font-weight:600;line-height:1.5;}
.nx-lead{font-size:17px;color:var(--text-2);line-height:1.85;max-width:62ch;}
.nx-eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;letter-spacing:.12em;color:var(--brand);
  text-transform:uppercase;margin-bottom:14px;
}
.nx-eyebrow::before{content:"";width:20px;height:1px;background:linear-gradient(90deg,var(--brand),transparent);}
.nx-sec-head{max-width:680px;margin-bottom:36px;}
.nx-sec-head p{margin-top:12px;color:var(--text-2);}

/* 顶部导航 */
.nx-header{
  position:fixed;top:0;left:0;right:0;z-index:1030;
  height:72px;display:flex;align-items:center;
  background:linear-gradient(180deg,rgba(7,12,26,.92),rgba(7,12,26,.7));
  border-bottom:1px solid transparent;
  transition:height var(--ease),background var(--ease),border-color var(--ease);
}
.nx-header.is-scrolled{
  height:64px;
  background:rgba(9,14,30,.78);
  backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
  border-bottom:1px solid var(--line);
}
.nx-navwrap{display:flex;align-items:center;justify-content:space-between;gap:24px;width:100%;}
.nx-logo{display:flex;align-items:center;gap:10px;color:var(--text);font-weight:700;font-size:18px;letter-spacing:-.01em;white-space:nowrap;}
.nx-logo:hover{color:var(--text);text-decoration:none;}
.nx-logo-mark{
  width:32px;height:32px;flex:0 0 32px;border-radius:10px;
  background:radial-gradient(circle at 30% 30%,rgba(53,200,232,.9),rgba(139,92,246,.7) 70%,rgba(7,12,26,.9));
  box-shadow:0 0 0 1px var(--glass-line),0 0 18px rgba(53,200,232,.35);
  position:relative;
}
.nx-logo-mark::after{
  content:"";position:absolute;inset:0;margin:auto;width:6px;height:6px;border-radius:50%;
  background:#fff;box-shadow:0 0 8px #fff;
}
.nx-nav{display:none;}
@media (min-width:992px){
  .nx-nav{display:flex;align-items:center;gap:4px;}
}
.nx-nav-link{
  position:relative;display:inline-flex;align-items:center;
  padding:10px 14px;font-size:15px;color:var(--text-2);
  border-radius:10px;transition:color var(--ease),background var(--ease);
}
.nx-nav-link:hover{color:var(--text);background:rgba(255,255,255,.04);text-decoration:none;}
.nx-nav-link.is-active{color:var(--brand);}
.nx-nav-link.is-active::after{
  content:"";position:absolute;left:14px;right:14px;bottom:2px;height:2px;border-radius:2px;
  background:var(--brand);box-shadow:0 0 10px rgba(53,200,232,.75);
}
.nx-head-actions{display:flex;align-items:center;gap:10px;}
.nx-burger{
  display:inline-flex;align-items:center;justify-content:center;
  width:42px;height:42px;border-radius:12px;
  background:rgba(255,255,255,.05);border:1px solid var(--line);color:var(--text);
}
.nx-burger:hover{background:rgba(53,200,232,.12);color:var(--brand);}
@media (min-width:992px){.nx-burger{display:none;}}
.nx-mobile-panel{
  position:fixed;top:72px;left:0;right:0;z-index:1029;
  background:rgba(9,14,30,.97);backdrop-filter:blur(14px);
  border-bottom:1px solid var(--line);padding:14px 20px 22px;
}
.nx-mobile-panel .nx-nav-link{display:block;padding:13px 12px;border-bottom:1px solid var(--line);border-radius:0;font-size:16px;}
.nx-mobile-panel .nx-nav-link.is-active::after{display:none;}

/* 按钮 */
.nx-btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:13px 24px;font-size:15px;font-weight:600;
  border-radius:var(--radius-btn);border:1px solid transparent;
  cursor:pointer;transition:all var(--ease);text-align:center;line-height:1.4;
}
.nx-btn:hover{text-decoration:none;}
.nx-btn-primary{
  background:linear-gradient(135deg,#35C8E8 0%,#8B5CF6 100%);
  color:#061018;box-shadow:0 8px 22px rgba(53,200,232,.22);
}
.nx-btn-primary:hover{
  filter:brightness(1.08);color:#061018;transform:translateY(-2px);
  box-shadow:0 0 24px rgba(53,200,232,.45);
}
.nx-btn-ghost{
  background:transparent;border-color:rgba(53,200,232,.55);color:var(--brand);
}
.nx-btn-ghost:hover{background:rgba(53,200,232,.12);color:#8fe2f8;text-decoration:none;}
.nx-btn-sm{padding:10px 18px;font-size:14px;}
.nx-link-arrow{
  display:inline-flex;align-items:center;gap:6px;font-size:15px;font-weight:600;color:var(--brand);
}
.nx-link-arrow i{transition:transform var(--ease);}
.nx-link-arrow:hover{text-decoration:none;color:#8fe2f8;}
.nx-link-arrow:hover i{transform:translateX(4px);}

/* Hero */
.nx-hero{
  position:relative;padding:120px 0 64px;overflow:hidden;
  background-image:linear-gradient(rgba(7,12,26,.72),rgba(7,12,26,.86)),url('/assets/images/backpic/back-1.webp');
  background-size:cover;background-position:center;
}
.nx-hero::after{
  content:"";position:absolute;inset:0;pointer-events:none;opacity:.5;
  background-image:radial-gradient(rgba(255,255,255,.16) 1px,transparent 1px);
  background-size:44px 44px;
}
.nx-hero .container{position:relative;z-index:2;}
@media (min-width:992px){.nx-hero{padding:150px 0 96px;}}
.nx-hero h1{margin-bottom:18px;}
.nx-hero-sub{font-size:17px;color:var(--text-2);max-width:52ch;margin-bottom:26px;}
.nx-hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-bottom:26px;}
.nx-hero-meta{display:flex;flex-wrap:wrap;gap:10px;}
.nx-chip{
  display:inline-flex;align-items:center;gap:6px;
  padding:7px 14px;border-radius:999px;font-size:13px;color:var(--text-2);
  background:rgba(255,255,255,.04);border:1px solid var(--line);
}
.nx-chip i{color:var(--brand);font-size:12px;}
.nx-glass{
  background:rgba(16,26,51,.55);
  border:1px solid var(--glass-line);
  border-radius:var(--radius-card);
  backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
  box-shadow:inset 0 1px 0 rgba(255,255,255,.10),0 10px 30px rgba(0,0,0,.25);
  padding:26px;
}
.nx-glass h3{font-size:19px;margin-bottom:6px;}
.nx-glass .nx-glass-sub{font-size:13px;color:var(--text-3);margin-bottom:20px;}
.nx-step-mini{display:flex;gap:14px;padding:12px 0;border-top:1px solid var(--line);}
.nx-step-mini:first-of-type{border-top:0;padding-top:0;}
.nx-step-mini .idx{
  flex:0 0 30px;width:30px;height:30px;border-radius:9px;
  display:flex;align-items:center;justify-content:center;
  font-size:13px;font-weight:700;color:var(--brand);
  background:rgba(53,200,232,.12);border:1px solid rgba(53,200,232,.35);
}
.nx-step-mini h4{font-size:16px;margin-bottom:2px;}
.nx-step-mini p{font-size:14px;color:var(--text-2);line-height:1.7;}

/* 通用卡片 */
.nx-card{
  background:var(--card-solid);border:1px solid var(--line);border-radius:var(--radius-card);
  box-shadow:var(--shadow-card);transition:transform var(--ease),border-color var(--ease);
  overflow:hidden;height:100%;display:flex;flex-direction:column;
}
.nx-card:hover{transform:translateY(-4px);border-color:rgba(53,200,232,.3);}
.nx-card-media{overflow:hidden;border-radius:0;}
.nx-card-media img{border-radius:0;width:100%;aspect-ratio:16/9;object-fit:cover;transition:transform 400ms ease;}
.nx-card:hover .nx-card-media img{transform:scale(1.03);}
.nx-card-body{padding:22px;display:flex;flex-direction:column;gap:10px;flex:1;}
.nx-card-body h4{font-size:18px;}
.nx-card-body p{font-size:14.5px;color:var(--text-2);line-height:1.75;}
.nx-tag{
  display:inline-flex;align-items:center;gap:6px;align-self:flex-start;
  padding:4px 11px;border-radius:999px;font-size:12.5px;
  color:#cbb8ff;background:rgba(139,92,246,.14);border:1px solid rgba(139,92,246,.3);
}
.nx-tag--gold{color:var(--gold);background:rgba(255,196,107,.12);border-color:rgba(255,196,107,.32);}
.nx-card-foot{margin-top:auto;display:flex;align-items:center;justify-content:space-between;gap:10px;padding-top:12px;}
.nx-meta{font-size:13px;color:var(--text-3);}
.nx-clamp-1{display:-webkit-box;-webkit-line-clamp:1;-webkit-box-orient:vertical;overflow:hidden;}
.nx-clamp-2{display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.nx-clamp-3{display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden;}

/* 服务能力：1 宽 + 3 窄 */
.nx-wide-card{
  background:linear-gradient(160deg,rgba(16,26,51,.95),rgba(11,18,38,.95));
  border:1px solid var(--line);border-radius:var(--radius-card);overflow:hidden;height:100%;
  box-shadow:var(--shadow-card);display:flex;flex-direction:column;
  transition:transform var(--ease),border-color var(--ease);
}
.nx-wide-card:hover{transform:translateY(-4px);border-color:rgba(53,200,232,.3);}
.nx-wide-card img{width:100%;aspect-ratio:16/10;object-fit:cover;border-radius:0;}
.nx-wide-body{padding:26px;display:flex;flex-direction:column;gap:12px;flex:1;}
.nx-wide-body h3{font-size:22px;}
.nx-wide-body p{color:var(--text-2);font-size:15px;}
.nx-narrow{
  display:flex;gap:16px;align-items:flex-start;
  background:var(--card-solid);border:1px solid var(--line);border-radius:var(--radius-card);
  padding:20px;transition:transform var(--ease),border-color var(--ease);height:100%;
}
.nx-narrow:hover{transform:translateY(-4px);border-color:rgba(53,200,232,.3);}
.nx-narrow-icon{
  flex:0 0 46px;width:46px;height:46px;border-radius:12px;
  display:flex;align-items:center;justify-content:center;
  font-size:19px;color:var(--brand);
  background:linear-gradient(150deg,rgba(53,200,232,.16),rgba(139,92,246,.14));
  border:1px solid rgba(53,200,232,.24);
}
.nx-narrow h4{margin-bottom:4px;}
.nx-narrow p{font-size:14.5px;color:var(--text-2);line-height:1.7;}

/* 数据条 */
.nx-stats{
  border:1px solid var(--glass-line);border-radius:var(--radius-card);
  background:rgba(16,26,51,.5);
  backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
  box-shadow:inset 0 1px 0 rgba(255,255,255,.08);
  padding:30px 20px;
}
.nx-stat{text-align:center;padding:10px 8px;}
.nx-stat .num{
  font-size:clamp(32px,4vw,40px);font-weight:700;line-height:1.1;
  color:var(--brand);text-shadow:0 0 22px rgba(53,200,232,.4);
  font-variant-numeric:tabular-nums;
}
.nx-stat .num small{font-size:.55em;font-weight:600;margin-left:2px;}
.nx-stat p{margin-top:8px;font-size:14px;color:var(--text-2);}
@media (min-width:992px){
  .nx-stat{border-right:1px solid var(--line);}
  .nx-stat:last-child{border-right:0;}
}

/* 案例 */
.nx-partner-grid{
  display:grid;grid-template-columns:repeat(2,1fr);gap:12px;margin-top:26px;
}
@media (min-width:768px){.nx-partner-grid{grid-template-columns:repeat(3,1fr);}}
@media (min-width:992px){.nx-partner-grid{grid-template-columns:repeat(6,1fr);}}
.nx-partner{
  padding:14px 10px;text-align:center;font-size:13.5px;color:var(--text-3);
  border:1px dashed var(--line);border-radius:12px;transition:all var(--ease);
}
.nx-partner:hover{color:var(--text-2);border-color:rgba(53,200,232,.32);background:rgba(53,200,232,.05);}

/* 流程步骤 */
.nx-flow{position:relative;display:grid;gap:28px;}
@media (min-width:992px){.nx-flow{grid-template-columns:repeat(4,1fr);gap:24px;}}
.nx-flow-item{position:relative;padding-top:36px;}
.nx-flow-item::before{
  content:"";position:absolute;top:13px;left:0;right:0;height:1px;
  background:linear-gradient(90deg,rgba(53,200,232,.45),rgba(255,255,255,.06));
}
.nx-flow-item:last-child::before{background:linear-gradient(90deg,rgba(53,200,232,.45),transparent);}
.nx-flow-dot{
  position:absolute;top:0;left:0;width:28px;height:28px;border-radius:50%;
  display:flex;align-items:center;justify-content:center;
  font-size:13px;font-weight:700;color:#061018;
  background:linear-gradient(135deg,#35C8E8,#8B5CF6);
  box-shadow:0 0 16px rgba(53,200,232,.45);
}
.nx-flow-item h4{margin-bottom:8px;}
.nx-flow-item p{font-size:14.5px;color:var(--text-2);}

/* 资讯列表 */
.nx-empty{
  text-align:center;padding:52px 24px;border:1px dashed var(--line);
  border-radius:var(--radius-card);background:var(--card-solid);
}
.nx-empty i{font-size:30px;color:var(--brand);margin-bottom:14px;display:block;}
.nx-empty p{color:var(--text-2);margin-bottom:18px;}

/* FAQ */
.nx-faq .accordion-item{
  background:rgba(16,26,51,.55);border:1px solid var(--glass-line);
  border-radius:var(--radius-card)!important;margin-bottom:12px;overflow:hidden;
  backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
}
.nx-faq .accordion-button{
  background:transparent;color:var(--text);font-size:17px;font-weight:600;
  padding:20px 22px;box-shadow:none;border-left:3px solid transparent;transition:all var(--ease);
}
.nx-faq .accordion-button:not(.collapsed){color:var(--brand);border-left-color:var(--brand);background:rgba(53,200,232,.06);}
.nx-faq .accordion-button:focus{box-shadow:none;outline:2px solid rgba(53,200,232,.5);outline-offset:-2px;}
.nx-faq .accordion-button::after{
  background-image:none;content:"\f054";font-family:"Font Awesome 6 Free";font-weight:900;
  font-size:13px;width:auto;height:auto;color:var(--brand);transform:rotate(0deg);transition:transform 260ms ease;
}
.nx-faq .accordion-button:not(.collapsed)::after{transform:rotate(90deg);}
.nx-faq .accordion-body{padding:0 22px 22px;color:var(--text-2);font-size:15px;line-height:1.85;}

/* 表单 */
.nx-form-card{
  background:var(--card-solid);border:1px solid var(--line);border-radius:var(--radius-card);
  padding:28px;box-shadow:var(--shadow-card);
}
.nx-label{display:block;font-size:14px;color:var(--text-2);margin-bottom:8px;}
.nx-label .req{color:var(--gold);margin-left:4px;}
.nx-input,.nx-select,.nx-textarea{
  width:100%;background:var(--card-input);border:1px solid rgba(255,255,255,.12);
  border-radius:var(--radius-input);padding:12px 14px;color:var(--text);
  transition:border-color var(--ease),box-shadow var(--ease);
}
.nx-input::placeholder,.nx-textarea::placeholder{color:var(--text-3);}
.nx-input:focus,.nx-select:focus,.nx-textarea:focus{
  outline:none;border-color:var(--brand);box-shadow:0 0 0 4px rgba(53,200,232,.15);
}
.nx-select{appearance:none;background-image:linear-gradient(45deg,transparent 50%,var(--text-2) 50%),linear-gradient(135deg,var(--text-2) 50%,transparent 50%);
  background-position:calc(100% - 20px) 50%,calc(100% - 14px) 50%;background-size:6px 6px,6px 6px;background-repeat:no-repeat;}
.nx-textarea{min-height:120px;resize:vertical;}
.nx-form-tip{font-size:13.5px;color:var(--text-3);margin-top:14px;}
.nx-form-msg{font-size:14px;margin-top:14px;display:none;}
.nx-form-msg.is-ok{display:block;color:var(--brand);}
.nx-form-msg.is-err{display:block;color:#FFA26B;}
.nx-contact-item{display:flex;gap:14px;align-items:flex-start;padding:16px 0;border-top:1px solid var(--line);}
.nx-contact-item:first-of-type{border-top:0;padding-top:0;}
.nx-contact-item i{color:var(--brand);font-size:17px;margin-top:5px;}
.nx-contact-item h4{font-size:16px;margin-bottom:2px;}
.nx-contact-item p{font-size:14px;color:var(--text-2);}

/* CTA 条 */
.nx-cta{
  border:1px solid var(--glass-line);border-radius:var(--radius-card);
  background:linear-gradient(135deg,rgba(53,200,232,.14),rgba(139,92,246,.14));
  padding:38px 28px;position:relative;overflow:hidden;
}
.nx-cta::after{
  content:"";position:absolute;right:-60px;top:-60px;width:220px;height:220px;border-radius:50%;
  background:radial-gradient(circle,rgba(53,200,232,.28),transparent 68%);
}
.nx-cta h2{margin-bottom:12px;}
.nx-cta p{color:var(--text-2);max-width:60ch;margin-bottom:22px;}

/* 页脚 */
.nx-footer{background:#05090F;border-top:1px solid var(--line);padding:56px 0 0;}
.nx-footer h4{font-size:16px;margin-bottom:16px;color:var(--text);}
.nx-footer p,.nx-footer li,.nx-footer a{font-size:14px;color:var(--text-2);}
.nx-footer a:hover{color:var(--brand);text-decoration:none;}
.nx-footer ul li{margin-bottom:10px;}
.nx-footer-bottom{
  margin-top:44px;border-top:1px solid var(--line);padding:20px 0;
  display:flex;flex-wrap:wrap;gap:10px;justify-content:space-between;align-items:center;
  font-size:13px;color:var(--text-3);
}
.nx-footer-bottom a{font-size:13px;color:var(--text-3);}
.nx-footer-brand{display:flex;align-items:center;gap:10px;color:var(--text);font-weight:700;font-size:18px;margin-bottom:14px;}

/* 移动底部 Tab */
.nx-tabbar{
  position:fixed;left:0;right:0;bottom:0;z-index:1040;display:flex;
  background:rgba(9,14,30,.96);backdrop-filter:blur(14px);
  border-top:1px solid var(--line);
  padding:8px 4px calc(8px + env(safe-area-inset-bottom));
}
.nx-tabbar a{
  flex:1;display:flex;flex-direction:column;align-items:center;gap:4px;
  font-size:11px;color:var(--text-3);padding:4px 2px;position:relative;
}
.nx-tabbar a i{font-size:19px;}
.nx-tabbar a:hover{text-decoration:none;color:var(--text-2);}
.nx-tabbar a.is-active{color:var(--brand);}
.nx-tabbar a.is-active::after{
  content:"";position:absolute;bottom:0;width:6px;height:3px;border-radius:999px;
  background:var(--brand);box-shadow:0 0 8px rgba(53,200,232,.8);
}
@media (min-width:992px){.nx-tabbar{display:none;}}
@media (max-width:991.98px){body{padding-bottom:calc(76px + env(safe-area-inset-bottom));}}

/* 其他 */
.nx-divider{height:1px;background:var(--line);margin:0;}
.nx-list-check li{
  position:relative;padding-left:26px;margin-bottom:10px;
  font-size:15px;color:var(--text-2);
}
.nx-list-check li::before{
  content:"\f00c";font-family:"Font Awesome 6 Free";font-weight:900;
  position:absolute;left:0;top:1px;font-size:12px;color:var(--brand);
}
@media (max-width:575.98px){
  .nx-hero{padding-top:104px;}
  .nx-glass{padding:20px;}
  .nx-form-card{padding:20px;}
  .nx-card-body{padding:18px;}
}

/* roulang page: article */
:root{
  --nx-bg:#070C1A;
  --nx-bg-soft:#0B1226;
  --nx-card:#101A33;
  --nx-card-soft:#0D1528;
  --nx-primary:#35C8E8;
  --nx-primary-deep:#1E9AC4;
  --nx-violet:#8B5CF6;
  --nx-gold:#FFC46B;
  --nx-text:#E6ECF7;
  --nx-text-2:#97A6C4;
  --nx-text-3:#6E7C99;
  --nx-line:rgba(255,255,255,.08);
  --nx-line-strong:rgba(255,255,255,.12);
  --nx-glass-border:rgba(255,255,255,.10);
  --nx-radius:16px;
  --nx-radius-sm:12px;
  --nx-radius-xs:10px;
  --nx-shadow:0 12px 28px rgba(0,0,0,.35);
  --nx-shadow-soft:0 8px 22px rgba(0,0,0,.24);
  --nx-glow:0 0 24px rgba(53,200,232,.45);
  --nx-container:1240px;
  --bs-primary:#35C8E8;
  --bs-body-bg:#070C1A;
  --bs-body-color:#E6ECF7;
  --bs-link-color:#35C8E8;
  --bs-link-hover-color:#5FD8F0;
  --bs-border-color:rgba(255,255,255,.08);
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  background-color:var(--nx-bg);
  color:var(--nx-text);
  font-family:"PingFang SC","HarmonyOS Sans","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",Roboto,"Helvetica Neue",Arial,sans-serif;
  font-size:16px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
  -moz-osx-font-smoothing:grayscale;
  overflow-x:hidden;
}
h1,h2,h3,h4,h5,h6{margin:0;font-weight:700;color:#fff;letter-spacing:-.01em}
p{margin:0}
a{color:var(--nx-primary);text-decoration:none;transition:color .2s ease,opacity .2s ease}
a:hover{color:#5FD8F0}
img{max-width:100%;height:auto;display:block;border-radius:var(--nx-radius-sm)}
button,input,select,textarea{font:inherit;color:inherit}
ul,ol{margin:0;padding:0;list-style:none}
::selection{background:rgba(53,200,232,.32);color:#fff}
:focus-visible{outline:2px solid var(--nx-primary);outline-offset:2px;border-radius:6px}
.nx-container,.container{width:100%;max-width:var(--nx-container);margin:0 auto;padding-left:20px;padding-right:20px}
@media (min-width:1400px){.container{max-width:1320px}}
.nx-sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}

/* ============ 顶部导航 ============ */
.nx-header{
  position:sticky;top:0;z-index:60;
  background:rgba(7,12,26,.82);
  -webkit-backdrop-filter:blur(14px);
  backdrop-filter:blur(14px);
  border-bottom:1px solid var(--nx-line);
  transition:background .24s ease,box-shadow .24s ease;
}
.nx-header.is-scrolled{background:rgba(7,12,26,.94);box-shadow:0 10px 26px rgba(0,0,0,.35)}
.nx-header-inner{display:flex;align-items:center;gap:26px;height:72px;transition:height .24s ease}
.nx-header.is-scrolled .nx-header-inner{height:64px}
.nx-brand{display:flex;align-items:center;gap:10px;font-size:17px;font-weight:700;color:#fff;letter-spacing:.01em;white-space:nowrap}
.nx-brand:hover{color:#fff}
.nx-logo-mark{
  position:relative;flex:none;width:28px;height:28px;border-radius:9px;
  background:linear-gradient(135deg,var(--nx-primary) 0%,var(--nx-violet) 100%);
  box-shadow:0 0 18px rgba(53,200,232,.45),inset 0 1px 0 rgba(255,255,255,.35);
}
.nx-logo-mark::after{
  content:"";position:absolute;right:4px;top:5px;width:5px;height:5px;border-radius:50%;
  background:var(--nx-gold);box-shadow:0 0 8px rgba(255,196,107,.9);
}
.nx-nav{display:flex;align-items:center;gap:4px;margin-left:auto}
.nx-nav-link{
  position:relative;padding:9px 13px;border-radius:var(--nx-radius-xs);
  font-size:15px;font-weight:500;color:var(--nx-text-2);
  transition:color .2s ease,background .2s ease;
}
.nx-nav-link:hover{color:#fff;background:rgba(255,255,255,.05)}
.nx-nav-link.is-active{color:var(--nx-primary);background:rgba(53,200,232,.10)}
.nx-nav-link.is-active::after{
  content:"";position:absolute;left:13px;right:13px;bottom:2px;height:2px;border-radius:2px;
  background:var(--nx-primary);box-shadow:0 0 10px rgba(53,200,232,.8);
}
.nx-header-cta{flex:none}

/* ============ 按钮 ============ */
.nx-btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:11px 22px;border-radius:var(--nx-radius-sm);border:1px solid transparent;
  font-size:15px;font-weight:600;line-height:1.2;cursor:pointer;white-space:nowrap;
  transition:transform .22s ease,box-shadow .22s ease,filter .22s ease,background .22s ease,border-color .22s ease,color .22s ease;
}
.nx-btn-primary{background:linear-gradient(135deg,var(--nx-primary) 0%,var(--nx-violet) 135%);color:#061018}
.nx-btn-primary:hover{color:#061018;filter:brightness(1.08);transform:translateY(-2px);box-shadow:var(--nx-glow)}
.nx-btn-ghost{background:transparent;border-color:rgba(53,200,232,.55);color:var(--nx-primary)}
.nx-btn-ghost:hover{background:rgba(53,200,232,.12);color:#5FD8F0;transform:translateY(-2px)}
.nx-btn-text{background:none;border:none;padding:4px 0;color:var(--nx-primary);font-size:15px;font-weight:600;display:inline-flex;align-items:center;gap:6px}
.nx-btn-text i{transition:transform .22s ease}
.nx-btn-text:hover i{transform:translateX(4px)}
.nx-btn-sm{padding:9px 16px;font-size:14px}
.nx-btn:active{transform:translateY(0)}

/* ============ 页面头部 ============ */
.nx-page-head{
  position:relative;overflow:hidden;
  padding:52px 0 46px;
  background-color:#0A1122;
  background-image:linear-gradient(180deg,rgba(7,12,26,.80) 0%,rgba(7,12,26,.92) 100%),url('/assets/images/backpic/back-2.png');
  background-size:cover;background-position:center;
  border-bottom:1px solid var(--nx-line);
}
.nx-page-head::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:radial-gradient(circle at 18% 28%,rgba(53,200,232,.16),transparent 44%),radial-gradient(circle at 82% 20%,rgba(139,92,246,.14),transparent 46%);
}
.nx-page-head .container{position:relative;z-index:2}
.nx-crumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--nx-text-3);margin-bottom:18px}
.nx-crumb a{color:var(--nx-text-2)}
.nx-crumb a:hover{color:var(--nx-primary)}
.nx-crumb .sep{color:rgba(110,124,153,.7)}
.nx-crumb-current{color:var(--nx-text-2);max-width:100%;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.nx-page-title{
  font-size:clamp(26px,3.5vw,42px);font-weight:700;line-height:1.28;letter-spacing:-.02em;
  max-width:900px;word-break:break-word;
}
.nx-meta{display:flex;flex-wrap:wrap;align-items:center;gap:14px;margin-top:20px;font-size:13.5px;color:var(--nx-text-3)}
.nx-meta span{display:inline-flex;align-items:center;gap:7px}
.nx-meta i{color:var(--nx-primary);font-size:12.5px}
.nx-tag{
  display:inline-flex;align-items:center;gap:6px;
  padding:4px 12px;border-radius:999px;font-size:12.5px;font-weight:600;
  color:#D6E4FF;background:rgba(139,92,246,.16);border:1px solid rgba(139,92,246,.34);
}

/* ============ 文章主体 ============ */
.nx-article-body{padding:56px 0 24px;background:linear-gradient(180deg,var(--nx-bg) 0%,var(--nx-bg-soft) 46%,var(--nx-bg) 100%)}
.nx-article{
  max-width:820px;margin:0 auto;background:var(--nx-card);
  border:1px solid var(--nx-line);border-radius:var(--nx-radius);
  padding:42px 46px;box-shadow:var(--nx-shadow);
}
.nx-prose{font-size:16px;line-height:1.9;color:rgba(230,236,247,.92);overflow-wrap:break-word;word-break:break-word}
.nx-prose>*:first-child{margin-top:0}
.nx-prose p{margin:0 0 1.2em;color:rgba(230,236,247,.9)}
.nx-prose h1,.nx-prose h2,.nx-prose h3,.nx-prose h4{margin:1.9em 0 .8em;color:#fff}
.nx-prose h2{
  position:relative;padding-left:16px;font-size:clamp(21px,2.5vw,26px);font-weight:700;line-height:1.42;
}
.nx-prose h2::before{
  content:"";position:absolute;left:0;top:.18em;bottom:.18em;width:4px;border-radius:4px;
  background:linear-gradient(180deg,var(--nx-primary),var(--nx-violet));
}
.nx-prose h3{
  display:flex;align-items:baseline;gap:10px;font-size:19px;font-weight:600;line-height:1.5;
}
.nx-prose h3::before{
  content:"";flex:none;width:6px;height:6px;border-radius:50%;background:var(--nx-primary);
  box-shadow:0 0 10px rgba(53,200,232,.85);transform:translateY(-3px);
}
.nx-prose h4{font-size:17px;font-weight:600}
.nx-prose ul,.nx-prose ol{padding-left:1.35em;margin:0 0 1.2em;color:rgba(230,236,247,.9)}
.nx-prose ul{list-style:disc}
.nx-prose ol{list-style:decimal}
.nx-prose li{margin:.42em 0}
.nx-prose li::marker{color:var(--nx-primary)}
.nx-prose a{color:var(--nx-primary);text-decoration:underline;text-underline-offset:3px;text-decoration-thickness:1px}
.nx-prose a:hover{color:#5FD8F0}
.nx-prose strong{color:#fff;font-weight:600}
.nx-prose blockquote{
  margin:1.6em 0;padding:16px 20px;border-left:3px solid var(--nx-primary);
  background:rgba(255,255,255,.05);border:1px solid var(--nx-glass-border);border-left-width:3px;
  -webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px);
  border-radius:0 var(--nx-radius-sm) var(--nx-radius-sm) 0;color:var(--nx-text-2);
}
.nx-prose blockquote p:last-child{margin-bottom:0}
.nx-prose img{margin:1.5em auto;border-radius:var(--nx-radius-sm);box-shadow:var(--nx-shadow-soft)}
.nx-prose figure{margin:1.5em 0}
.nx-prose figcaption,.nx-prose .wp-caption-text{display:block;margin-top:10px;font-size:13px;color:var(--nx-text-3);text-align:center}
.nx-prose hr{border:0;border-top:1px solid var(--nx-line);margin:2.2em 0}
.nx-prose code{background:rgba(53,200,232,.12);color:#B7ECF8;padding:2px 7px;border-radius:6px;font-size:14px}
.nx-prose pre{background:#070E1E;border:1px solid var(--nx-line);border-radius:var(--nx-radius-sm);padding:16px 18px;overflow-x:auto;font-size:14px;line-height:1.7}
.nx-prose pre code{background:none;color:#CFE5F5;padding:0}
.nx-prose table{width:100%;border-collapse:collapse;font-size:15px;min-width:520px}
.nx-prose th{background:rgba(53,200,232,.12);color:#fff;font-weight:600}
.nx-prose th,.nx-prose td{border:1px solid var(--nx-line);padding:10px 14px;text-align:left}
.nx-prose tbody tr:nth-child(even){background:rgba(255,255,255,.02)}
.nx-table-scroll{overflow-x:auto;margin:1.5em 0;border-radius:var(--nx-radius-sm)}
.nx-table-scroll::-webkit-scrollbar{height:8px}
.nx-table-scroll::-webkit-scrollbar-thumb{background:rgba(53,200,232,.35);border-radius:8px}

/* 空态 */
.nx-empty{text-align:center;padding:54px 20px}
.nx-empty-icon{
  width:64px;height:64px;margin:0 auto 20px;border-radius:20px;display:flex;align-items:center;justify-content:center;
  background:rgba(53,200,232,.12);border:1px solid rgba(53,200,232,.28);color:var(--nx-primary);font-size:24px;
}
.nx-empty h2{font-size:20px;margin-bottom:10px}
.nx-empty p{color:var(--nx-text-2);font-size:15px;max-width:460px;margin:0 auto 22px}

/* 返回行 */
.nx-back-row{max-width:820px;margin:26px auto 0;display:flex;flex-wrap:wrap;gap:12px;align-items:center}
.nx-back-row .nx-hint{font-size:13px;color:var(--nx-text-3);margin-right:auto}

/* ============ 下一步指引 ============ */
.nx-next{padding:74px 0 0}
.nx-sec-head{max-width:720px;margin-bottom:36px}
.nx-sec-kicker{
  display:inline-flex;align-items:center;gap:8px;font-size:13px;font-weight:600;letter-spacing:.06em;
  color:var(--nx-primary);text-transform:uppercase;margin-bottom:14px;
}
.nx-sec-kicker::before{content:"";width:22px;height:1px;background:var(--nx-primary);opacity:.7}
.nx-sec-title{font-size:clamp(23px,3vw,34px);font-weight:700;line-height:1.32;margin-bottom:14px}
.nx-sec-desc{color:var(--nx-text-2);font-size:15.5px;line-height:1.85;max-width:640px}
.nx-next-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.nx-card{
  display:flex;flex-direction:column;gap:14px;
  background:var(--nx-card);border:1px solid var(--nx-line);border-radius:var(--nx-radius);
  padding:26px 24px;box-shadow:var(--nx-shadow-soft);
  transition:transform .28s ease,border-color .28s ease,box-shadow .28s ease;
}
.nx-card:hover{transform:translateY(-4px);border-color:rgba(53,200,232,.3);box-shadow:0 18px 36px rgba(0,0,0,.42)}
.nx-card-icon{
  width:44px;height:44px;border-radius:13px;display:flex;align-items:center;justify-content:center;
  background:rgba(53,200,232,.12);border:1px solid rgba(53,200,232,.26);color:var(--nx-primary);font-size:17px;
}
.nx-card h3{font-size:17.5px;font-weight:600;line-height:1.5}
.nx-card p{font-size:14.5px;color:var(--nx-text-2);line-height:1.8}
.nx-card .nx-card-link{margin-top:auto;font-size:14.5px;font-weight:600;display:inline-flex;align-items:center;gap:7px}
.nx-card .nx-card-link i{transition:transform .22s ease}
.nx-card:hover .nx-card-link i{transform:translateX(4px)}

/* ============ CTA ============ */
.nx-cta-band{padding:78px 0 96px}
.nx-cta-card{
  display:flex;flex-wrap:wrap;align-items:center;gap:32px;justify-content:space-between;
  padding:44px 46px;border-radius:var(--nx-radius);
  background:linear-gradient(135deg,rgba(53,200,232,.14) 0%,rgba(139,92,246,.14) 100%),var(--nx-card);
  border:1px solid var(--nx-glass-border);
  box-shadow:inset 0 1px 0 rgba(255,255,255,.10),var(--nx-shadow-soft);
}
.nx-cta-card h2{font-size:clamp(21px,2.6vw,28px);line-height:1.36;margin-bottom:12px;max-width:640px}
.nx-cta-card p{color:var(--nx-text-2);font-size:15px;max-width:640px;line-height:1.85}
.nx-cta-actions{display:flex;flex-wrap:wrap;gap:14px}

/* ============ 页脚 ============ */
.nx-footer{background:var(--nx-bg-soft);border-top:1px solid var(--nx-line);padding:66px 0 0;margin-top:0}
.nx-footer h4{font-size:15.5px;font-weight:600;margin-bottom:18px;color:#fff}
.nx-footer-brand{display:flex;align-items:center;gap:10px;font-size:18px;font-weight:700;color:#fff;margin-bottom:16px}
.nx-footer p{font-size:14px;color:var(--nx-text-2);line-height:1.85;max-width:400px}
.nx-footer ul{margin-top:0}
.nx-footer li{font-size:14px;color:var(--nx-text-2);margin-bottom:11px;line-height:1.7}
.nx-footer li a{color:var(--nx-text-2)}
.nx-footer li a:hover{color:var(--nx-primary)}
.nx-footer-bottom{
  margin-top:52px;border-top:1px solid var(--nx-line);padding:20px 0;
  display:flex;flex-wrap:wrap;gap:10px 24px;justify-content:space-between;
  font-size:13px;color:var(--nx-text-3);
}

/* ============ 移动底部 Tab ============ */
.nx-tabbar{
  position:fixed;left:0;right:0;bottom:0;z-index:70;display:none;
  grid-template-columns:repeat(5,1fr);
  background:rgba(11,18,38,.95);
  -webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px);
  border-top:1px solid var(--nx-line);
  padding:6px 4px calc(6px + env(safe-area-inset-bottom));
}
.nx-tabbar a{
  position:relative;display:flex;flex-direction:column;align-items:center;gap:4px;
  padding:6px 2px;font-size:11px;color:var(--nx-text-3);line-height:1.2;text-align:center;
}
.nx-tabbar a i{font-size:20px}
.nx-tabbar a.is-active{color:var(--nx-primary)}
.nx-tabbar a.is-active::after{
  content:"";position:absolute;bottom:-1px;width:18px;height:3px;border-radius:3px;
  background:var(--nx-primary);box-shadow:0 0 10px rgba(53,200,232,.85);
}

/* ============ 响应式 ============ */
@media (max-width:1199.98px){
  .nx-next-grid{grid-template-columns:repeat(2,1fr)}
}
@media (max-width:991.98px){
  .nx-nav{display:none}
  .nx-header-inner{height:64px;justify-content:space-between;gap:14px}
  .nx-brand{font-size:16px}
  .nx-tabbar{display:grid}
  body{padding-bottom:calc(78px + env(safe-area-inset-bottom))}
  .nx-page-head{padding:42px 0 38px}
  .nx-article{padding:32px 26px}
  .nx-article-body{padding:44px 0 18px}
  .nx-next{padding:56px 0 0}
  .nx-cta-band{padding:56px 0 72px}
  .nx-cta-card{padding:32px 26px}
  .nx-footer{padding-top:52px}
}
@media (max-width:767.98px){
  .nx-next-grid{grid-template-columns:1fr}
  .nx-page-title{font-size:clamp(24px,6vw,32px)}
  .nx-meta{gap:10px;font-size:13px}
  .nx-cta-actions{width:100%}
  .nx-cta-actions .nx-btn{flex:1 1 auto}
  .nx-footer-bottom{flex-direction:column;gap:8px}
}
@media (max-width:575.98px){
  .nx-container,.container{padding-left:16px;padding-right:16px}
  .nx-article{padding:26px 18px;border-radius:14px}
  .nx-next-grid{gap:16px}
  .nx-prose{font-size:15.5px}
  .nx-prose h2{font-size:20px}
  .nx-prose h3{font-size:17.5px}
  .nx-header-cta{padding:9px 14px;font-size:14px}
  .nx-cta-card{padding:26px 18px}
  .nx-empty{padding:36px 6px}
}

/* roulang page: category1 */
:root{
  --bs-primary:#35C8E8;
  --bs-body-bg:#070C1A;
  --bs-body-color:#E6ECF7;
  --bs-border-color:rgba(255,255,255,.08);
  --bs-link-color:#35C8E8;
  --bs-link-hover-color:#7BDBF2;

  --nx-bg:#070C1A;
  --nx-bg-2:#0B1226;
  --nx-card:#101A33;
  --nx-field:#0D1528;
  --nx-primary:#35C8E8;
  --nx-primary-deep:#1E9AC4;
  --nx-violet:#8B5CF6;
  --nx-gold:#FFC46B;
  --nx-text:#E6ECF7;
  --nx-muted:#97A6C4;
  --nx-dim:#6E7C99;
  --nx-line:rgba(255,255,255,.08);
  --nx-glass-line:rgba(255,255,255,.10);
  --nx-radius:16px;
  --nx-radius-sm:12px;
  --nx-shadow:0 12px 28px rgba(0,0,0,.35);
  --nx-shadow-soft:0 8px 22px rgba(0,0,0,.24);
  --nx-warn:#F2A25C;
  --nx-font:"PingFang SC","HarmonyOS Sans","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",Roboto,"Helvetica Neue",Arial,sans-serif;
}

*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  padding:0;
  background:var(--nx-bg);
  color:var(--nx-text);
  font-family:var(--nx-font);
  font-size:16px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
  overflow-x:hidden;
}
img{max-width:100%;display:block;height:auto}
a{color:var(--nx-primary);text-decoration:none;text-underline-offset:3px;transition:color .2s ease}
a:hover{color:#7BDBF2}
h1,h2,h3,h4,h5{font-weight:700;color:var(--nx-text);letter-spacing:-0.01em}
h1{font-size:clamp(30px,4.2vw,50px);line-height:1.22;letter-spacing:-0.02em;margin:0 0 18px}
h2{font-size:clamp(23px,3vw,34px);line-height:1.3;margin:0 0 14px}
h3{font-size:21px;line-height:1.4;font-weight:600;margin:0 0 10px}
h4{font-size:17px;line-height:1.5;font-weight:600;margin:0 0 8px}
p{margin:0 0 16px;color:var(--nx-muted);max-width:40em}
p.nx-strong{color:var(--nx-text)}
ul{padding-left:0;list-style:none;margin:0}
button{font-family:inherit}
:focus-visible{outline:2px solid var(--nx-primary);outline-offset:2px;border-radius:4px}

@media (min-width:1200px){.container{max-width:1240px}}
@media (min-width:1600px){.container{max-width:1320px}}
.container{padding-left:20px;padding-right:20px}

/* ---------- header ---------- */
.nx-header{
  position:sticky;top:0;z-index:1030;
  background:rgba(7,12,26,.82);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  border-bottom:1px solid var(--nx-line);
  transition:background .25s ease,border-color .25s ease;
}
.nx-header.is-scrolled{background:rgba(7,12,26,.95);border-bottom-color:rgba(53,200,232,.18)}
.nx-header-inner{display:flex;align-items:center;gap:28px;height:72px;transition:height .25s ease}
.nx-header.is-scrolled .nx-header-inner{height:64px}
.nx-logo{display:inline-flex;align-items:center;gap:10px;font-size:17px;font-weight:700;color:var(--nx-text);letter-spacing:-0.01em;white-space:nowrap}
.nx-logo:hover{color:var(--nx-text)}
.nx-logo-mark{
  width:28px;height:28px;border-radius:9px;flex:0 0 28px;
  background:radial-gradient(circle at 30% 30%,#35C8E8 0%,#8B5CF6 62%,#1E9AC4 100%);
  box-shadow:0 0 0 1px rgba(255,255,255,.14),0 0 18px rgba(53,200,232,.4);
  position:relative;
}
.nx-logo-mark::after{
  content:"";position:absolute;inset:9px;border-radius:50%;
  background:rgba(7,12,26,.9);
}
.nx-nav{display:flex;align-items:center;gap:6px;margin-left:auto}
.nx-nav-link{
  position:relative;display:inline-block;padding:8px 14px;border-radius:10px;
  font-size:15px;color:var(--nx-muted);font-weight:500;transition:color .2s ease,background .2s ease;
}
.nx-nav-link:hover{color:var(--nx-text);background:rgba(255,255,255,.04)}
.nx-nav-link.is-active{color:var(--nx-primary);font-weight:600}
.nx-nav-link.is-active::after{
  content:"";position:absolute;left:14px;right:14px;bottom:2px;height:2px;border-radius:2px;
  background:var(--nx-primary);box-shadow:0 0 10px rgba(53,200,232,.9);
}
.nx-header-right{margin-left:auto;display:flex;align-items:center;gap:12px}
.nx-nav+.nx-header-right{margin-left:0}

/* ---------- buttons ---------- */
.nx-btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  font-size:15px;font-weight:600;line-height:1;
  padding:13px 24px;border-radius:var(--nx-radius-sm);border:1px solid transparent;
  cursor:pointer;text-decoration:none;transition:all .22s ease;
}
.nx-btn i{font-size:13px}
.nx-btn-primary{background:linear-gradient(135deg,#35C8E8 0%,#8B5CF6 100%);color:#061018}
.nx-btn-primary:hover{filter:brightness(1.08);transform:translateY(-2px);box-shadow:0 0 24px rgba(53,200,232,.45);color:#061018}
.nx-btn-primary:active{transform:translateY(0)}
.nx-btn-ghost{background:transparent;border-color:rgba(53,200,232,.5);color:var(--nx-primary)}
.nx-btn-ghost:hover{background:rgba(53,200,232,.12);color:var(--nx-primary);transform:translateY(-2px)}
.nx-btn-sm{padding:10px 18px;font-size:14px}
.nx-link{display:inline-flex;align-items:center;gap:7px;color:var(--nx-primary);font-size:15px;font-weight:600}
.nx-link i{font-size:12px;transition:transform .22s ease}
.nx-link:hover i{transform:translateX(4px)}

/* ---------- banner ---------- */
.nx-banner{
  position:relative;overflow:hidden;
  padding:88px 0 68px;
  background-image:url('/assets/images/backpic/back-1.webp');
  background-size:cover;background-position:center;
  border-bottom:1px solid var(--nx-line);
}
.nx-banner::before{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(7,12,26,.90) 0%,rgba(7,12,26,.80) 46%,rgba(7,12,26,.97) 100%);
}
.nx-banner::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:radial-gradient(rgba(255,255,255,.16) 1px,transparent 1px);
  background-size:46px 46px;opacity:.35;
  -webkit-mask-image:linear-gradient(180deg,rgba(0,0,0,.9),transparent 78%);
  mask-image:linear-gradient(180deg,rgba(0,0,0,.9),transparent 78%);
}
.nx-banner .container{position:relative;z-index:2}
.nx-crumb{display:flex;align-items:center;gap:10px;font-size:13px;color:var(--nx-dim);margin-bottom:22px;flex-wrap:wrap}
.nx-crumb a{color:var(--nx-muted)}
.nx-crumb a:hover{color:var(--nx-primary)}
.nx-crumb-sep{color:rgba(255,255,255,.22)}
.nx-banner h1{max-width:20em}
.nx-banner-lead{font-size:17px;color:var(--nx-muted);max-width:44em;margin-bottom:26px}
.nx-banner-actions{display:flex;gap:14px;flex-wrap:wrap;margin-bottom:30px}
.nx-glass{
  background:rgba(255,255,255,.045);
  backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
  border:1px solid var(--nx-glass-line);
  border-radius:var(--nx-radius);
  box-shadow:inset 0 1px 0 rgba(255,255,255,.10),0 8px 26px rgba(0,0,0,.22);
}
.nx-metrics{display:grid;grid-template-columns:repeat(3,1fr);gap:0;overflow:hidden}
.nx-metric{padding:22px 24px;border-right:1px solid var(--nx-line)}
.nx-metric:last-child{border-right:0}
.nx-metric strong{display:block;font-size:30px;font-weight:700;color:var(--nx-primary);line-height:1.1;letter-spacing:-0.02em;text-shadow:0 0 18px rgba(53,200,232,.35)}
.nx-metric span{font-size:13px;color:var(--nx-dim);display:block;margin-top:6px}

/* ---------- section base ---------- */
.nx-section{padding:96px 0;position:relative}
.nx-section+.nx-section{border-top:1px solid var(--nx-line)}
.nx-section-alt{background:var(--nx-bg-2)}
.nx-sec-head{max-width:46em;margin-bottom:44px}
.nx-eyebrow{
  display:inline-flex;align-items:center;gap:8px;font-size:13px;font-weight:600;
  color:var(--nx-primary);letter-spacing:.06em;margin-bottom:14px;
}
.nx-eyebrow i{font-size:12px}
.nx-sec-head p{font-size:16px;margin-bottom:0}

/* ---------- layout with side anchors ---------- */
.nx-layout{padding:80px 0 96px}
.nx-side-inner{position:sticky;top:96px}
.nx-side-title{font-size:13px;font-weight:600;color:var(--nx-dim);letter-spacing:.08em;margin-bottom:14px}
.nx-anchor-list li+li{margin-top:4px}
.nx-anchor-list a{
  display:flex;align-items:center;gap:10px;padding:10px 14px;border-radius:10px;
  font-size:14.5px;color:var(--nx-muted);border-left:2px solid transparent;transition:all .2s ease;
}
.nx-anchor-list a:hover{color:var(--nx-text);background:rgba(255,255,255,.04)}
.nx-anchor-list a.is-active{color:var(--nx-primary);background:rgba(53,200,232,.08);border-left-color:var(--nx-primary);font-weight:600}
.nx-anchor-dot{width:6px;height:6px;border-radius:50%;background:currentColor;flex:0 0 6px;opacity:.65}
.nx-side-cta{margin-top:24px;padding:20px}
.nx-side-cta p{font-size:14px;margin-bottom:14px}
.nx-divider{height:1px;background:var(--nx-line);margin:0}

/* ---------- cards ---------- */
.nx-card{
  background:var(--nx-card);border:1px solid var(--nx-line);border-radius:var(--nx-radius);
  padding:26px;height:100%;display:flex;flex-direction:column;
  box-shadow:var(--nx-shadow);
  transition:transform .3s ease,border-color .3s ease,box-shadow .3s ease;
}
.nx-card:hover{transform:translateY(-4px);border-color:rgba(53,200,232,.3);box-shadow:0 18px 36px rgba(0,0,0,.42)}
.nx-card p{font-size:15px;margin-bottom:0}
.nx-card-top{display:flex;align-items:flex-start;justify-content:space-between;gap:12px;margin-bottom:16px}
.nx-icon{
  width:44px;height:44px;flex:0 0 44px;border-radius:12px;display:grid;place-items:center;
  background:linear-gradient(135deg,rgba(53,200,232,.18),rgba(139,92,246,.14));
  border:1px solid rgba(53,200,232,.25);color:var(--nx-primary);font-size:17px;
}
.nx-card-foot{margin-top:auto;padding-top:18px;display:flex;align-items:center;justify-content:space-between}
.nx-card-cover{
  border-radius:var(--nx-radius);overflow:hidden;border:1px solid var(--nx-line);
  background:var(--nx-bg-2);height:100%;display:flex;flex-direction:column;
  transition:transform .3s ease,border-color .3s ease,box-shadow .3s ease;box-shadow:var(--nx-shadow);
}
.nx-card-cover:hover{transform:translateY(-4px);border-color:rgba(53,200,232,.3);box-shadow:0 18px 36px rgba(0,0,0,.42)}
.nx-cover-media{position:relative;overflow:hidden;aspect-ratio:16/9;background:#0A1122}
.nx-cover-media img{width:100%;height:100%;object-fit:cover;transition:transform .4s ease}
.nx-card-cover:hover .nx-cover-media img{transform:scale(1.03)}
.nx-cover-media::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(7,12,26,0) 40%,rgba(7,12,26,.72) 100%)}
.nx-cover-body{padding:22px 24px 24px;display:flex;flex-direction:column;flex:1}
.nx-cover-body p{font-size:15px;margin-bottom:0}
.nx-tag{
  display:inline-flex;align-items:center;gap:6px;font-size:13px;font-weight:500;
  padding:4px 12px;border-radius:999px;
  background:rgba(139,92,246,.14);border:1px solid rgba(139,92,246,.28);color:#B9A4FF;
}
.nx-badge{
  display:inline-flex;align-items:center;gap:6px;font-size:12.5px;font-weight:600;
  padding:4px 11px;border-radius:999px;
  background:rgba(255,196,107,.12);border:1px solid rgba(255,196,107,.32);color:var(--nx-gold);
}
.nx-badge-cyan{background:rgba(53,200,232,.12);border-color:rgba(53,200,232,.3);color:var(--nx-primary)}
.nx-meta{font-size:13px;color:var(--nx-dim);display:flex;align-items:center;gap:8px}

/* ---------- steps ---------- */
.nx-steps{position:relative;display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.nx-steps::before{
  content:"";position:absolute;top:17px;left:8%;right:8%;height:1px;
  background:linear-gradient(90deg,rgba(53,200,232,.55),rgba(139,92,246,.4),rgba(53,200,232,.15));
}
.nx-step{position:relative;padding-top:0}
.nx-step-num{
  width:34px;height:34px;border-radius:50%;display:grid;place-items:center;
  font-size:14px;font-weight:700;color:#061018;
  background:linear-gradient(135deg,#35C8E8,#8B5CF6);
  box-shadow:0 0 0 5px rgba(7,12,26,1),0 0 18px rgba(53,200,232,.45);
  position:relative;z-index:2;margin-bottom:18px;
}
.nx-step h4{margin-bottom:8px}
.nx-step p{font-size:14.5px;margin-bottom:0}

/* ---------- checklist ---------- */
.nx-list-check li{display:flex;gap:12px;padding:12px 0;border-bottom:1px solid var(--nx-line);color:var(--nx-muted);font-size:15px}
.nx-list-check li:last-child{border-bottom:0}
.nx-list-check i{color:var(--nx-primary);font-size:14px;margin-top:7px}
.nx-list-check strong{color:var(--nx-text);font-weight:600}

/* ---------- faq ---------- */
.nx-faq{padding:14px 6px}
.nx-faq-item{border-bottom:1px solid var(--nx-line);position:relative}
.nx-faq-item:last-child{border-bottom:0}
.nx-faq-q{
  width:100%;background:none;border:0;text-align:left;color:var(--nx-text);
  font-size:17px;font-weight:600;line-height:1.6;padding:22px 42px 22px 18px;
  cursor:pointer;position:relative;transition:color .2s ease;
}
.nx-faq-q::before{
  content:"";position:absolute;left:0;top:22px;bottom:22px;width:3px;border-radius:3px;
  background:transparent;transition:background .25s ease;
}
.nx-faq-q i{
  position:absolute;right:12px;top:50%;transform:translateY(-50%);
  font-size:13px;color:var(--nx-dim);transition:transform .26s ease,color .26s ease;
}
.nx-faq-q:hover{color:var(--nx-primary)}
.nx-faq-item.is-open .nx-faq-q::before{background:var(--nx-primary);box-shadow:0 0 12px rgba(53,200,232,.6)}
.nx-faq-item.is-open .nx-faq-q i{transform:translateY(-50%) rotate(90deg);color:var(--nx-primary)}
.nx-faq-a{max-height:0;overflow:hidden;transition:max-height .26s ease}
.nx-faq-item.is-open .nx-faq-a{max-height:340px}
.nx-faq-a p{padding:0 42px 22px 18px;font-size:15px;margin-bottom:0;line-height:1.85}

/* ---------- cta ---------- */
.nx-cta{
  position:relative;overflow:hidden;border-radius:20px;
  background:linear-gradient(135deg,rgba(53,200,232,.14) 0%,rgba(139,92,246,.12) 100%),var(--nx-card);
  border:1px solid rgba(53,200,232,.22);
  padding:56px 48px;
  box-shadow:var(--nx-shadow);
}
.nx-cta::after{
  content:"";position:absolute;right:-80px;top:-80px;width:280px;height:280px;border-radius:50%;
  background:radial-gradient(circle,rgba(53,200,232,.22),transparent 66%);
}
.nx-cta h2{margin-bottom:12px}
.nx-cta p{max-width:40em;margin-bottom:0}
.nx-cta-actions{display:flex;gap:14px;flex-wrap:wrap;margin-top:28px}
.nx-cta-grid{display:grid;grid-template-columns:1fr 1fr;gap:14px;margin-top:4px}
.nx-cta-point{display:flex;align-items:center;gap:10px;font-size:14.5px;color:var(--nx-muted)}
.nx-cta-point i{color:var(--nx-primary);font-size:13px}

/* ---------- block foot ---------- */
.nx-block-foot{
  display:flex;align-items:center;gap:28px;flex-wrap:wrap;
  margin-top:40px;padding-top:24px;border-top:1px dashed rgba(255,255,255,.10);
}

/* ---------- footer ---------- */
.nx-footer{background:var(--nx-bg-2);border-top:1px solid var(--nx-line);padding:72px 0 28px;margin-top:0}
.nx-footer-brand{display:flex;align-items:center;gap:10px;font-size:17px;font-weight:700;color:var(--nx-text);margin-bottom:16px}
.nx-footer h4{font-size:15px;font-weight:600;color:var(--nx-text);margin-bottom:16px}
.nx-footer ul li{margin-bottom:10px;font-size:14.5px;color:var(--nx-dim)}
.nx-footer ul li a{color:var(--nx-muted);font-size:14.5px}
.nx-footer ul li a:hover{color:var(--nx-primary)}
.nx-footer p{font-size:14.5px;color:var(--nx-dim);max-width:34em}
.nx-footer-bottom{
  margin-top:48px;padding-top:24px;border-top:1px solid var(--nx-line);
  display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13px;color:var(--nx-dim);
}

/* ---------- mobile tabbar ---------- */
.nx-tabbar{
  position:fixed;left:0;right:0;bottom:0;z-index:1040;display:none;
  background:rgba(11,18,38,.97);
  backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
  border-top:1px solid var(--nx-line);
  padding:8px 4px calc(8px + env(safe-area-inset-bottom));
}
.nx-tab{
  display:flex;flex-direction:column;align-items:center;gap:4px;
  padding:6px 2px;font-size:11px;color:var(--nx-dim);position:relative;
}
.nx-tab i{font-size:17px;line-height:1}
.nx-tab.is-active{color:var(--nx-primary)}
.nx-tab.is-active::after{
  content:"";position:absolute;bottom:0;width:5px;height:5px;border-radius:50%;
  background:var(--nx-primary);box-shadow:0 0 8px rgba(53,200,232,.9);
}

/* ---------- responsive ---------- */
@media (max-width:1199.98px){
  .nx-section{padding:80px 0}
  .nx-layout{padding:64px 0 80px}
}
@media (max-width:991.98px){
  body{padding-bottom:calc(76px + env(safe-area-inset-bottom))}
  .nx-nav{display:none}
  .nx-tabbar{display:grid;grid-template-columns:repeat(5,1fr)}
  .nx-header-inner{height:64px;gap:14px}
  .nx-header.is-scrolled .nx-header-inner{height:60px}
  .nx-section{padding:72px 0}
  .nx-banner{padding:64px 0 52px}
  .nx-steps{grid-template-columns:repeat(2,1fr);gap:28px}
  .nx-steps::before{display:none}
  .nx-cta{padding:40px 28px}
  .nx-cta-grid{grid-template-columns:1fr}
  .nx-metrics{grid-template-columns:1fr}
  .nx-metric{border-right:0;border-bottom:1px solid var(--nx-line)}
  .nx-metric:last-child{border-bottom:0}
  .nx-side{display:none}
}
@media (max-width:767.98px){
  .nx-section{padding:56px 0}
  .nx-banner{padding:52px 0 44px}
  .nx-banner-lead{font-size:16px}
  .nx-layout{padding:48px 0 64px}
  .nx-card{padding:22px}
  .nx-card-cover{height:auto}
  .nx-faq-q{font-size:16px;padding:18px 38px 18px 16px}
  .nx-faq-a p{padding:0 24px 20px 16px}
  .nx-footer{padding:56px 0 24px}
  .nx-block-foot{gap:18px}
}
@media (max-width:575.98px){
  .container{padding-left:16px;padding-right:16px}
  .nx-steps{grid-template-columns:1fr}
  .nx-cta{padding:32px 20px}
  .nx-btn{width:100%}
  .nx-cta-actions .nx-btn,.nx-banner-actions .nx-btn{width:auto;flex:1 1 auto}
}
@media (prefers-reduced-motion:reduce){
  *{transition:none!important;animation:none!important;scroll-behavior:auto!important}
}

/* roulang page: category2 */
:root{
  --bg:#070C1A;
  --bg-soft:#0B1226;
  --card:#101A33;
  --card-2:#0D1528;
  --primary:#35C8E8;
  --primary-deep:#1E9AC4;
  --violet:#8B5CF6;
  --gold:#FFC46B;
  --text:#E6ECF7;
  --muted:#97A6C4;
  --faint:#6E7C99;
  --line:rgba(255,255,255,.08);
  --glass-border:rgba(255,255,255,.10);
  --radius:16px;
  --radius-sm:12px;
  --pill:999px;
  --shadow-card:0 12px 28px rgba(0,0,0,.35);
  --shadow-glow:0 0 24px rgba(53,200,232,.45);
  --bs-primary:#35C8E8;
  --bs-primary-rgb:53,200,232;
  --bs-body-bg:#070C1A;
  --bs-body-color:#E6ECF7;
  --bs-body-font-family:"PingFang SC","HarmonyOS Sans","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
}
*{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:var(--bs-body-font-family);
  font-size:16px;
  line-height:1.85;
  font-weight:400;
  padding-bottom:calc(76px + env(safe-area-inset-bottom));
  overflow-x:hidden;
}
img{max-width:100%;display:block;height:auto;}
a{color:var(--primary);text-decoration:none;text-underline-offset:3px;transition:color .22s ease;}
a:hover{color:#6FDBF3;text-decoration:underline;text-decoration-thickness:1px;}
h1,h2,h3,h4,h5{margin:0;color:var(--text);font-weight:700;letter-spacing:-.01em;}
h1{font-size:clamp(30px,4.2vw,50px);line-height:1.22;letter-spacing:-.02em;}
h2{font-size:clamp(23px,3vw,34px);line-height:1.3;}
h3{font-size:21px;line-height:1.4;font-weight:600;}
h4{font-size:17px;line-height:1.45;font-weight:600;}
p{margin:0;}
ul{margin:0;padding:0;list-style:none;}
:focus-visible{outline:2px solid var(--primary);outline-offset:3px;border-radius:4px;}
.container{max-width:1240px;padding-left:20px;padding-right:20px;}
@media (min-width:1400px){.container{max-width:1320px;}}
.nx-section{padding:56px 0;}
@media (min-width:768px){.nx-section{padding:72px 0;}}
@media (min-width:992px){.nx-section{padding:96px 0;}}
.nx-eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;letter-spacing:.12em;color:var(--primary);
  text-transform:uppercase;font-weight:600;margin-bottom:14px;
}
.nx-eyebrow::before{content:"";width:18px;height:1px;background:var(--primary);display:inline-block;}
.nx-lead{color:var(--muted);font-size:16px;line-height:1.85;max-width:42em;}
.nx-divider{height:1px;background:var(--line);border:0;margin:0;}

/* ---------- 顶部导航 ---------- */
.nx-header{
  position:sticky;top:0;z-index:1030;
  background:rgba(7,12,26,.86);
  border-bottom:1px solid var(--line);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  transition:height .25s ease,background .25s ease;
}
.nx-header-inner{
  display:flex;align-items:center;justify-content:space-between;
  gap:18px;height:72px;
}
.nx-header.is-scrolled .nx-header-inner{height:64px;}
.nx-brand{display:inline-flex;align-items:center;gap:10px;color:var(--text);font-weight:700;font-size:17px;letter-spacing:.01em;}
.nx-brand:hover{color:var(--text);text-decoration:none;}
.nx-logo-mark{
  width:26px;height:26px;border-radius:8px;flex:0 0 26px;
  background:linear-gradient(135deg,var(--primary) 0%,var(--violet) 100%);
  position:relative;box-shadow:0 0 18px rgba(53,200,232,.35);
}
.nx-logo-mark::after{
  content:"";position:absolute;inset:8px;border-radius:50%;
  background:#061018;
}
.nx-nav{display:none;}
@media (min-width:992px){
  .nx-nav{display:flex;align-items:center;gap:6px;}
}
.nx-nav-link{
  position:relative;color:var(--muted);font-size:15px;font-weight:500;
  padding:8px 14px;border-radius:var(--pill);transition:color .22s ease,background .22s ease;
}
.nx-nav-link:hover{color:var(--text);background:rgba(255,255,255,.05);text-decoration:none;}
.nx-nav-link.is-active{color:var(--primary);}
.nx-nav-link.is-active::after{
  content:"";position:absolute;left:14px;right:14px;bottom:2px;height:2px;
  background:var(--primary);border-radius:2px;box-shadow:0 0 10px rgba(53,200,232,.8);
}
.nx-header-cta{display:none;}
@media (min-width:768px){.nx-header-cta{display:inline-flex;}}

/* ---------- 按钮 ---------- */
.nx-btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  font-size:15px;font-weight:600;line-height:1;
  padding:13px 22px;border-radius:var(--radius-sm);
  border:1px solid transparent;cursor:pointer;
  transition:transform .22s ease,box-shadow .22s ease,background .22s ease,border-color .22s ease,color .22s ease;
}
.nx-btn-primary{
  background:linear-gradient(135deg,var(--primary) 0%,var(--violet) 100%);
  color:#061018;border:none;
}
.nx-btn-primary:hover{
  color:#061018;transform:translateY(-2px);
  box-shadow:var(--shadow-glow);filter:brightness(1.08);text-decoration:none;
}
.nx-btn-ghost{
  background:transparent;color:var(--primary);border:1px solid rgba(53,200,232,.55);
}
.nx-btn-ghost:hover{
  background:rgba(53,200,232,.12);color:var(--primary);
  transform:translateY(-2px);text-decoration:none;
}
.nx-btn-text{
  display:inline-flex;align-items:center;gap:8px;color:var(--primary);
  font-size:15px;font-weight:600;background:none;border:none;padding:0;
}
.nx-btn-text i{transition:transform .22s ease;}
.nx-btn-text:hover{text-decoration:none;color:#6FDBF3;}
.nx-btn-text:hover i{transform:translateX(4px);}

/* ---------- 分类 Banner ---------- */
.nx-banner{
  position:relative;overflow:hidden;
  min-height:300px;display:flex;align-items:center;
  border-bottom:1px solid var(--line);
  background-image:url(/assets/images/backpic/back-2.png);
  background-size:cover;background-position:center;
}
.nx-banner::before{
  content:"";position:absolute;inset:0;
  background:linear-gradient(105deg,rgba(7,12,26,.94) 0%,rgba(7,12,26,.78) 55%,rgba(11,18,38,.62) 100%);
}
.nx-banner::after{
  content:"";position:absolute;inset:0;opacity:.35;
  background-image:radial-gradient(rgba(255,255,255,.28) 1px,transparent 1px);
  background-size:34px 34px;
  mask-image:linear-gradient(to right,rgba(0,0,0,.9),transparent 70%);
  -webkit-mask-image:linear-gradient(to right,rgba(0,0,0,.9),transparent 70%);
}
.nx-banner .container{position:relative;z-index:2;padding-top:52px;padding-bottom:52px;}
@media (min-width:768px){.nx-banner .container{padding-top:68px;padding-bottom:68px;}}
.nx-crumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--faint);margin-bottom:16px;}
.nx-crumb a{color:var(--muted);}
.nx-crumb a:hover{color:var(--primary);}
.nx-crumb span.sep{color:var(--faint);}
.nx-crumb strong{color:var(--primary);font-weight:600;}
.nx-banner h1{max-width:20em;}
.nx-banner .nx-banner-sub{color:var(--muted);font-size:16px;margin-top:16px;max-width:38em;}
.nx-banner-tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:22px;}
.nx-tag{
  display:inline-flex;align-items:center;gap:6px;
  padding:6px 13px;border-radius:var(--pill);font-size:13px;
  background:rgba(53,200,232,.10);border:1px solid rgba(53,200,232,.28);color:#9FE6F7;
}
.nx-tag-violet{background:rgba(139,92,246,.12);border-color:rgba(139,92,246,.34);color:#C7B2FB;}

/* ---------- 玻璃卡与实色卡 ---------- */
.nx-glass{
  position:relative;border-radius:var(--radius);
  background:rgba(16,26,51,.55);
  border:1px solid var(--glass-border);
  backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
  box-shadow:inset 0 1px 0 rgba(255,255,255,.10),0 10px 30px rgba(0,0,0,.25);
}
.nx-card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--radius);
  box-shadow:var(--shadow-card);padding:24px;height:100%;
  transition:transform .28s ease,border-color .28s ease,box-shadow .28s ease;
}
.nx-card:hover{transform:translateY(-4px);border-color:rgba(53,200,232,.30);}
.nx-card h4{margin-bottom:10px;}
.nx-card p{color:var(--muted);font-size:15px;}
.nx-icon{
  width:46px;height:46px;border-radius:14px;display:inline-flex;align-items:center;justify-content:center;
  background:rgba(53,200,232,.12);border:1px solid rgba(53,200,232,.28);color:var(--primary);
  font-size:18px;margin-bottom:16px;
}
.nx-icon-violet{background:rgba(139,92,246,.14);border-color:rgba(139,92,246,.32);color:#B79CFA;}

/* ---------- 数据条 ---------- */
.nx-stats{
  display:grid;grid-template-columns:repeat(2,1fr);
  gap:1px;background:var(--glass-border);border-radius:var(--radius);overflow:hidden;
  border:1px solid var(--glass-border);
}
@media (min-width:992px){.nx-stats{grid-template-columns:repeat(4,1fr);}}
.nx-stat{
  background:rgba(13,21,40,.72);padding:26px 22px;text-align:left;
  backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
}
.nx-stat .num{
  font-family:"Inter","PingFang SC",system-ui,sans-serif;
  font-size:clamp(32px,4vw,38px);font-weight:700;line-height:1.1;
  color:var(--primary);text-shadow:0 0 22px rgba(53,200,232,.45);
  letter-spacing:-.02em;
}
.nx-stat .num small{font-size:15px;color:var(--muted);margin-left:4px;font-weight:600;text-shadow:none;}
.nx-stat .label{color:var(--muted);font-size:14px;margin-top:8px;line-height:1.7;}

/* ---------- 时间轴 ---------- */
.nx-timeline{position:relative;margin-top:34px;padding-left:34px;}
.nx-timeline::before{
  content:"";position:absolute;left:11px;top:8px;bottom:8px;width:2px;
  background:linear-gradient(180deg,rgba(53,200,232,.75),rgba(139,92,246,.45),rgba(255,255,255,.06));
  border-radius:2px;
}
@media (min-width:768px){.nx-timeline{padding-left:52px;}
  .nx-timeline::before{left:17px;}}
.nx-step{position:relative;padding-bottom:28px;}
.nx-step:last-child{padding-bottom:0;}
.nx-step::before{
  content:"";position:absolute;left:-34px;top:22px;width:12px;height:12px;border-radius:50%;
  background:var(--bg);border:2px solid var(--primary);
  box-shadow:0 0 0 4px rgba(53,200,232,.12);
}
@media (min-width:768px){.nx-step::before{left:-52px;width:14px;height:14px;}}
.nx-step-card{
  background:var(--card-2);border:1px solid var(--line);border-radius:var(--radius);
  padding:22px 24px;transition:border-color .28s ease,transform .28s ease;
}
.nx-step-card:hover{border-color:rgba(53,200,232,.30);transform:translateX(4px);}
.nx-step-head{display:flex;flex-wrap:wrap;align-items:center;gap:12px;margin-bottom:10px;}
.nx-step-no{
  font-family:"Inter",system-ui,sans-serif;font-size:13px;font-weight:700;letter-spacing:.08em;
  color:#9FE6F7;background:rgba(53,200,232,.12);border:1px solid rgba(53,200,232,.3);
  padding:3px 10px;border-radius:var(--pill);
}
.nx-step-card p{color:var(--muted);font-size:15px;}
.nx-step-meta{display:flex;flex-wrap:wrap;gap:16px;margin-top:14px;font-size:13px;color:var(--faint);}
.nx-step-meta span{display:inline-flex;align-items:center;gap:6px;}
.nx-step-meta i{color:var(--primary);font-size:12px;}

/* ---------- 场景卡 ---------- */
.nx-scene{overflow:hidden;padding:0;}
.nx-scene .thumb{position:relative;aspect-ratio:16/9;overflow:hidden;}
.nx-scene .thumb img{width:100%;height:100%;object-fit:cover;transition:transform .4s ease;}
.nx-scene:hover .thumb img{transform:scale(1.03);}
.nx-scene .thumb::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(7,12,26,0) 40%,rgba(7,12,26,.85) 100%);
}
.nx-scene .body{padding:20px 22px 24px;}
.nx-scene .body h4{margin-bottom:8px;}
.nx-scene .body p{color:var(--muted);font-size:15px;}

/* ---------- 要点清单 ---------- */
.nx-checklist{display:grid;gap:14px;}
@media (min-width:768px){.nx-checklist{grid-template-columns:1fr 1fr;gap:16px 26px;}}
.nx-check-item{
  display:flex;gap:14px;align-items:flex-start;
  background:var(--card);border:1px solid var(--line);border-radius:var(--radius-sm);
  padding:18px 20px;
}
.nx-check-item i{
  flex:0 0 auto;width:22px;height:22px;border-radius:50%;
  display:inline-flex;align-items:center;justify-content:center;
  background:rgba(53,200,232,.14);color:var(--primary);font-size:11px;margin-top:4px;
}
.nx-check-item h4{font-size:16px;margin-bottom:4px;}
.nx-check-item p{color:var(--muted);font-size:14px;line-height:1.75;}

/* ---------- 图文区 ---------- */
.nx-figure{border-radius:var(--radius);overflow:hidden;border:1px solid var(--line);}
.nx-figure img{width:100%;height:100%;object-fit:cover;}
.nx-note{
  border-left:3px solid var(--primary);
  background:rgba(16,26,51,.6);
  border-radius:0 var(--radius-sm) var(--radius-sm) 0;
  padding:16px 20px;color:var(--muted);font-size:15px;
}
.nx-list-col li{
  position:relative;padding-left:22px;color:var(--muted);font-size:15px;margin-bottom:10px;
}
.nx-list-col li::before{
  content:"";position:absolute;left:0;top:12px;width:8px;height:8px;border-radius:2px;
  background:var(--violet);opacity:.85;
}

/* ---------- FAQ ---------- */
.nx-faq{border-radius:var(--radius);}
.nx-faq .accordion-item{
  background:rgba(16,26,51,.5);border:1px solid var(--glass-border);
  border-radius:var(--radius-sm)!important;margin-bottom:12px;overflow:hidden;
  backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
}
.nx-faq .accordion-button{
  background:transparent;color:var(--text);font-size:16px;font-weight:600;
  padding:18px 20px;box-shadow:none;gap:14px;line-height:1.6;
}
.nx-faq .accordion-button:not(.collapsed){color:var(--primary);}
.nx-faq .accordion-button::after{
  content:"\f054";font-family:"Font Awesome 6 Free";font-weight:900;font-size:12px;
  background-image:none;width:auto;height:auto;transition:transform .26s ease;color:var(--primary);
}
.nx-faq .accordion-button:not(.collapsed)::after{transform:rotate(90deg);}
.nx-faq .accordion-button:focus{box-shadow:none;outline:2px solid var(--primary);outline-offset:-2px;}
.nx-faq .accordion-body{
  color:var(--muted);font-size:15px;line-height:1.85;padding:0 20px 20px;
  border-left:3px solid var(--primary);margin-left:0;
}
.nx-faq .accordion-button:not(.collapsed){border-left:3px solid var(--primary);}

/* ---------- 表单 ---------- */
.nx-form-card{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:26px;box-shadow:var(--shadow-card);}
.nx-label{display:block;font-size:14px;color:var(--muted);margin-bottom:8px;}
.nx-label .req{color:var(--gold);margin-left:4px;}
.nx-input,.nx-select,.nx-textarea{
  width:100%;background:var(--card-2);border:1px solid rgba(255,255,255,.12);
  border-radius:10px;color:var(--text);font-size:15px;padding:12px 14px;
  font-family:inherit;transition:border-color .22s ease,box-shadow .22s ease;
}
.nx-textarea{min-height:118px;resize:vertical;}
.nx-input::placeholder,.nx-textarea::placeholder{color:var(--faint);}
.nx-input:focus,.nx-select:focus,.nx-textarea:focus{
  outline:none;border-color:var(--primary);box-shadow:0 0 0 4px rgba(53,200,232,.15);
}
.nx-form-hint{font-size:13px;color:var(--faint);margin-top:12px;}
.nx-form-msg{
  display:none;margin-top:14px;font-size:14px;color:#9FE6F7;
  background:rgba(53,200,232,.10);border:1px solid rgba(53,200,232,.28);
  border-radius:10px;padding:12px 14px;
}
.nx-form-msg.is-on{display:block;}

/* ---------- 联系信息卡 ---------- */
.nx-info-item{display:flex;gap:14px;align-items:flex-start;padding:16px 0;border-bottom:1px solid var(--line);}
.nx-info-item:last-child{border-bottom:0;}
.nx-info-item i{color:var(--primary);font-size:16px;margin-top:5px;}
.nx-info-item h4{font-size:16px;margin-bottom:4px;}
.nx-info-item p{color:var(--muted);font-size:14px;}

/* ---------- 页脚 ---------- */
.nx-footer{
  background:var(--bg-soft);border-top:1px solid var(--line);
  padding:56px 0 24px;margin-top:0;
}
.nx-footer-brand{display:flex;align-items:center;gap:10px;font-size:17px;font-weight:700;color:var(--text);margin-bottom:14px;}
.nx-footer h4{font-size:15px;margin-bottom:16px;color:var(--text);}
.nx-footer p{color:var(--muted);font-size:14px;line-height:1.85;max-width:34em;}
.nx-footer ul li{margin-bottom:10px;}
.nx-footer ul li a{color:var(--muted);font-size:14px;}
.nx-footer ul li a:hover{color:var(--primary);}
.nx-footer ul li{color:var(--muted);font-size:14px;}
.nx-footer-bottom{
  margin-top:36px;padding-top:20px;border-top:1px solid var(--line);
  display:flex;flex-wrap:wrap;gap:10px;justify-content:space-between;
  color:var(--faint);font-size:13px;
}

/* ---------- 移动底部 Tab ---------- */
.nx-tabbar{
  position:fixed;left:0;right:0;bottom:0;z-index:1040;
  display:grid;grid-template-columns:repeat(5,1fr);
  background:rgba(8,14,30,.94);
  border-top:1px solid var(--line);
  backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px);
  padding:8px 4px calc(6px + env(safe-area-inset-bottom));
}
@media (min-width:992px){.nx-tabbar{display:none;}body{padding-bottom:0;}}
.nx-tab{
  display:flex;flex-direction:column;align-items:center;gap:5px;
  color:var(--faint);font-size:11px;text-decoration:none;padding:6px 2px;position:relative;
}
.nx-tab i{font-size:20px;}
.nx-tab:hover{color:var(--primary);text-decoration:none;}
.nx-tab.is-active{color:var(--primary);}
.nx-tab.is-active::after{
  content:"";position:absolute;bottom:0;width:16px;height:3px;border-radius:3px;
  background:var(--primary);box-shadow:0 0 10px rgba(53,200,232,.9);
}
.nx-tab span{white-space:nowrap;}

/* ---------- 收尾 CTA 条 ---------- */
.nx-cta-band{
  background:linear-gradient(120deg,rgba(53,200,232,.12) 0%,rgba(139,92,246,.12) 100%);
  border:1px solid var(--glass-border);border-radius:var(--radius);
  padding:32px 28px;display:flex;flex-wrap:wrap;gap:20px;
  align-items:center;justify-content:space-between;
}
.nx-cta-band h3{margin-bottom:6px;}
.nx-cta-band p{color:var(--muted);font-size:15px;max-width:36em;}
.nx-back-links{display:flex;flex-wrap:wrap;gap:14px;margin-top:26px;}

/* roulang page: category3 */
:root{
  --nx-bg:#070C1A;
  --nx-surface:#0B1226;
  --nx-card:#101A33;
  --nx-primary:#35C8E8;
  --nx-primary-deep:#1E9AC4;
  --nx-accent:#8B5CF6;
  --nx-gold:#FFC46B;
  --nx-text:#E6ECF7;
  --nx-muted:#97A6C4;
  --nx-dim:#6E7C99;
  --nx-line:rgba(255,255,255,.08);
  --nx-glass:rgba(255,255,255,.10);
  --nx-input:#0D1528;
  --nx-radius:16px;
  --nx-radius-sm:12px;
  --nx-shadow:0 12px 28px rgba(0,0,0,.35);
  --nx-glow:0 0 24px rgba(53,200,232,.45);
}

*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--nx-bg);
  color:var(--nx-text);
  font-family:"PingFang SC","HarmonyOS Sans","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
  font-size:16px;
  line-height:1.85;
  font-weight:400;
  letter-spacing:.01em;
  overflow-x:hidden;
}
img{max-width:100%;height:auto;display:block;}
a{color:var(--nx-primary);text-decoration:none;text-underline-offset:3px;}
a:hover{color:#63d8f2;text-decoration:underline;text-decoration-thickness:1px;}
h1,h2,h3,h4,h5{color:var(--nx-text);margin:0 0 .6em;font-weight:700;}
h1{font-size:clamp(30px,4.2vw,50px);line-height:1.22;letter-spacing:-.02em;}
h2{font-size:clamp(23px,3vw,34px);line-height:1.3;letter-spacing:-.01em;}
h3{font-size:21px;line-height:1.4;font-weight:600;}
h4{font-size:17px;line-height:1.45;font-weight:600;}
p{margin:0 0 1.1em;color:var(--nx-muted);}
strong{color:var(--nx-text);font-weight:600;}
ul,ol{margin:0 0 1em;padding-left:1.15em;color:var(--nx-muted);}
li{margin-bottom:.5em;}
button{font-family:inherit;}
:focus-visible{outline:2px solid var(--nx-primary);outline-offset:3px;border-radius:6px;}

.container{width:100%;max-width:1240px;margin:0 auto;padding:0 20px;}
@media (min-width:1400px){.container{max-width:1320px;}}

/* ============ 顶部导航 ============ */
.nx-header{
  position:sticky;top:0;z-index:1030;
  background:rgba(7,12,26,.86);
  border-bottom:1px solid transparent;
  transition:background .3s ease,border-color .3s ease,box-shadow .3s ease;
  backdrop-filter:blur(10px);
}
.nx-header.is-scrolled{
  background:rgba(9,15,32,.92);
  border-bottom-color:var(--nx-line);
  box-shadow:0 10px 30px rgba(0,0,0,.35);
}
.nx-header-inner{
  display:flex;align-items:center;justify-content:space-between;gap:24px;
  min-height:72px;
  transition:min-height .3s ease;
}
.nx-header.is-scrolled .nx-header-inner{min-height:64px;}
.nx-brand{display:flex;align-items:center;gap:10px;flex:0 0 auto;}
.nx-brand:hover{text-decoration:none;}
.nx-logo-mark{
  width:26px;height:26px;flex:0 0 26px;border-radius:8px;
  background:linear-gradient(135deg,var(--nx-primary),var(--nx-accent));
  box-shadow:0 0 16px rgba(53,200,232,.45);
  position:relative;
}
.nx-logo-mark::after{
  content:"";position:absolute;inset:8px;border-radius:50%;
  background:#070C1A;
}
.nx-brand-text{font-size:18px;font-weight:700;color:var(--nx-text);letter-spacing:.01em;white-space:nowrap;}
.nx-nav{display:flex;align-items:center;gap:6px;flex-wrap:wrap;}
.nx-nav-link{
  position:relative;
  display:inline-block;
  padding:8px 14px;
  font-size:15px;font-weight:500;
  color:var(--nx-muted);
  border-radius:10px;
  transition:color .2s ease,background .2s ease;
}
.nx-nav-link:hover{color:var(--nx-text);background:rgba(255,255,255,.05);text-decoration:none;}
.nx-nav-link.is-active{color:var(--nx-primary);font-weight:600;}
.nx-nav-link.is-active::after{
  content:"";position:absolute;left:14px;right:14px;bottom:0;height:2px;border-radius:2px;
  background:var(--nx-primary);
  box-shadow:0 0 10px rgba(53,200,232,.8);
}
@media (max-width:991.98px){
  .nx-nav{display:none;}
}

/* ============ 移动底部 Tab ============ */
.nx-tabbar{
  position:fixed;left:0;right:0;bottom:0;z-index:1040;
  display:flex;
  background:rgba(9,15,32,.96);
  border-top:1px solid var(--nx-line);
  backdrop-filter:blur(14px);
  padding-bottom:env(safe-area-inset-bottom);
}
.nx-tabbar a{
  flex:1 1 0;min-width:0;
  display:flex;flex-direction:column;align-items:center;justify-content:center;gap:3px;
  padding:9px 2px 8px;
  font-size:11px;line-height:1.2;
  color:var(--nx-dim);
  text-align:center;
  transition:color .2s ease;
}
.nx-tabbar a i{font-size:22px;}
.nx-tabbar a span{display:block;max-width:100%;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;}
.nx-tabbar a:hover{text-decoration:none;color:var(--nx-muted);}
.nx-tabbar a.is-active{color:var(--nx-primary);}
.nx-tabbar a.is-active i{position:relative;}
.nx-tabbar a.is-active i::after{
  content:"";position:absolute;left:50%;bottom:-6px;transform:translateX(-50%);
  width:6px;height:3px;border-radius:999px;
  background:var(--nx-primary);
  box-shadow:0 0 10px rgba(53,200,232,.9);
}
@media (min-width:992px){.nx-tabbar{display:none;}}
@media (max-width:991.98px){
  body{padding-bottom:calc(76px + env(safe-area-inset-bottom));}
}

/* ============ Banner ============ */
.nx-banner{
  position:relative;
  padding:64px 0 56px;
  background-image:linear-gradient(rgba(7,12,26,.80),rgba(7,12,26,.92)),url("/assets/images/backpic/back-1.webp");
  background-size:cover;background-position:center;
  border-bottom:1px solid var(--nx-line);
  overflow:hidden;
}
.nx-banner::before{
  content:"";position:absolute;inset:0;
  background-image:radial-gradient(rgba(255,255,255,.16) 1px,transparent 1px);
  background-size:42px 42px;
  opacity:.5;pointer-events:none;
}
.nx-banner-inner{position:relative;z-index:2;max-width:820px;}
.nx-crumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:14px;color:var(--nx-dim);margin-bottom:18px;}
.nx-crumb a{color:var(--nx-muted);}
.nx-crumb a:hover{color:var(--nx-primary);}
.nx-crumb .sep{color:var(--nx-dim);}
.nx-crumb .current{color:var(--nx-primary);}
.nx-banner h1{margin-bottom:16px;}
.nx-banner-lead{font-size:17px;line-height:1.85;color:var(--nx-muted);max-width:40em;margin-bottom:24px;}
.nx-banner-actions{display:flex;flex-wrap:wrap;gap:14px;align-items:center;}
.nx-badge{
  display:inline-flex;align-items:center;gap:6px;
  padding:5px 12px;border-radius:999px;
  font-size:13px;font-weight:500;
  color:var(--nx-primary);
  background:rgba(53,200,232,.10);
  border:1px solid rgba(53,200,232,.28);
}
.nx-badge-gold{color:var(--nx-gold);background:rgba(255,196,107,.10);border-color:rgba(255,196,107,.30);}
.nx-badge-purple{color:#b79dfb;background:rgba(139,92,246,.12);border-color:rgba(139,92,246,.32);}

/* ============ 按钮 ============ */
.nx-btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:12px 24px;border-radius:var(--nx-radius-sm);
  font-size:15px;font-weight:600;line-height:1.2;
  border:1px solid transparent;cursor:pointer;
  transition:transform .22s ease,box-shadow .22s ease,background .22s ease,color .22s ease,border-color .22s ease,filter .22s ease;
}
.nx-btn-primary{
  background:linear-gradient(135deg,var(--nx-primary) 0%,var(--nx-accent) 100%);
  color:#061018;text-decoration:none;
}
.nx-btn-primary:hover{
  color:#061018;text-decoration:none;
  filter:brightness(1.08);
  transform:translateY(-2px);
  box-shadow:var(--nx-glow);
}
.nx-btn-ghost{
  background:transparent;color:var(--nx-primary);
  border-color:rgba(53,200,232,.45);
}
.nx-btn-ghost:hover{
  color:var(--nx-primary);text-decoration:none;
  background:rgba(53,200,232,.12);
  transform:translateY(-2px);
}
.nx-btn-sm{padding:9px 18px;font-size:14px;}
.nx-text-link{
  display:inline-flex;align-items:center;gap:6px;
  font-size:15px;font-weight:600;color:var(--nx-primary);
  transition:transform .22s ease,color .22s ease;
}
.nx-text-link i{transition:transform .22s ease;}
.nx-text-link:hover{text-decoration:none;color:#63d8f2;transform:translateX(4px);}

/* ============ 通用板块 ============ */
.nx-section{padding:64px 0;position:relative;}
@media (min-width:768px){.nx-section{padding:80px 0;}}
@media (min-width:992px){.nx-section{padding:96px 0;}}
.nx-section-alt{background:var(--nx-surface);border-top:1px solid var(--nx-line);border-bottom:1px solid var(--nx-line);}
.nx-section-head{max-width:760px;margin-bottom:40px;}
.nx-eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;font-weight:600;letter-spacing:.08em;
  color:var(--nx-primary);text-transform:uppercase;
  margin-bottom:14px;
}
.nx-eyebrow::before{
  content:"";width:22px;height:1px;background:var(--nx-primary);display:inline-block;
}
.nx-section-head p{font-size:16px;margin-bottom:0;}
.nx-block-foot{
  display:flex;flex-wrap:wrap;gap:12px;align-items:center;
  margin-top:36px;padding-top:22px;border-top:1px dashed var(--nx-line);
}

/* ============ 卡片 ============ */
.nx-card{
  height:100%;
  background:var(--nx-card);
  border:1px solid var(--nx-line);
  border-radius:var(--nx-radius);
  padding:26px 24px;
  box-shadow:var(--nx-shadow);
  transition:transform .3s ease,border-color .3s ease,box-shadow .3s ease;
}
.nx-card:hover{transform:translateY(-4px);border-color:rgba(53,200,232,.30);}
.nx-card-icon{
  width:44px;height:44px;border-radius:12px;
  display:flex;align-items:center;justify-content:center;
  background:rgba(53,200,232,.10);
  border:1px solid rgba(53,200,232,.25);
  color:var(--nx-primary);font-size:19px;
  margin-bottom:18px;
}
.nx-card h3,.nx-card h4{margin-bottom:10px;}
.nx-card p{margin-bottom:0;font-size:15px;line-height:1.8;}
.nx-card-glass{
  background:rgba(16,26,51,.62);
  border:1px solid var(--nx-glass);
  border-radius:var(--nx-radius);
  box-shadow:inset 0 1px 0 rgba(255,255,255,.10),0 12px 34px rgba(0,0,0,.28);
  backdrop-filter:blur(14px);
  padding:26px 24px;
}

/* ============ 对照表 ============ */
.nx-table-wrap{
  background:var(--nx-card);
  border:1px solid var(--nx-line);
  border-radius:var(--nx-radius);
  box-shadow:var(--nx-shadow);
  overflow:hidden;
}
.nx-table-scroll{overflow-x:auto;-webkit-overflow-scrolling:touch;}
table.nx-table{
  width:100%;min-width:760px;border-collapse:collapse;
  font-size:15px;
}
table.nx-table thead th{
  background:rgba(53,200,232,.10);
  color:var(--nx-text);
  font-weight:600;font-size:14px;letter-spacing:.02em;
  text-align:left;
  padding:16px 18px;
  border-bottom:1px solid rgba(53,200,232,.22);
  white-space:nowrap;
}
table.nx-table tbody td{
  padding:16px 18px;
  border-bottom:1px solid var(--nx-line);
  color:var(--nx-muted);
  vertical-align:top;
}
table.nx-table tbody tr:last-child td{border-bottom:none;}
table.nx-table tbody tr:hover td{background:rgba(255,255,255,.025);}
table.nx-table td.nx-td-strong{color:var(--nx-text);font-weight:600;}
table.nx-table td.nx-td-strong i{color:var(--nx-primary);margin-right:8px;}
.nx-time{color:var(--nx-gold);font-weight:600;white-space:nowrap;}
.nx-table-note{
  padding:14px 18px;font-size:13px;color:var(--nx-dim);
  border-top:1px solid var(--nx-line);
  background:rgba(255,255,255,.015);
}

/* ============ 要点清单 ============ */
.nx-check-list{list-style:none;padding:0;margin:0;}
.nx-check-list li{
  position:relative;
  padding:16px 18px 16px 52px;
  margin-bottom:12px;
  background:var(--nx-card);
  border:1px solid var(--nx-line);
  border-radius:var(--nx-radius-sm);
  color:var(--nx-muted);
  font-size:15px;line-height:1.8;
  transition:border-color .25s ease,transform .25s ease;
}
.nx-check-list li:hover{border-color:rgba(53,200,232,.30);transform:translateY(-2px);}
.nx-check-list li::before{
  content:"\f00c";
  font-family:"Font Awesome 6 Free";font-weight:900;
  position:absolute;left:16px;top:17px;
  width:22px;height:22px;border-radius:999px;
  display:flex;align-items:center;justify-content:center;
  font-size:11px;color:#061018;
  background:linear-gradient(135deg,var(--nx-primary),var(--nx-accent));
}
.nx-check-list li strong{display:block;color:var(--nx-text);font-weight:600;margin-bottom:4px;}

.nx-point-list{list-style:none;padding:0;margin:0;}
.nx-point-list li{
  position:relative;
  padding-left:22px;
  margin-bottom:12px;
  font-size:15px;line-height:1.8;color:var(--nx-muted);
}
.nx-point-list li::before{
  content:"";position:absolute;left:0;top:11px;
  width:8px;height:8px;border-radius:2px;
  background:var(--nx-primary);opacity:.85;
}

/* ============ 步骤流 ============ */
.nx-steps{position:relative;padding-left:34px;}
.nx-steps::before{
  content:"";position:absolute;left:11px;top:10px;bottom:14px;width:2px;
  background:linear-gradient(180deg,rgba(53,200,232,.75),rgba(139,92,246,.35),transparent);
}
.nx-step{position:relative;padding-bottom:30px;}
.nx-step:last-child{padding-bottom:0;}
.nx-step::before{
  content:attr(data-step);
  position:absolute;left:-34px;top:2px;
  width:24px;height:24px;border-radius:999px;
  display:flex;align-items:center;justify-content:center;
  font-size:12px;font-weight:700;color:#061018;
  background:linear-gradient(135deg,var(--nx-primary),var(--nx-accent));
  box-shadow:0 0 0 4px rgba(53,200,232,.12);
}
.nx-step h4{margin-bottom:6px;}
.nx-step p{margin-bottom:0;font-size:15px;}

/* ============ 图文区 ============ */
.nx-figure{
  border-radius:var(--nx-radius);
  overflow:hidden;
  border:1px solid var(--nx-line);
  background:var(--nx-card);
  box-shadow:var(--nx-shadow);
}
.nx-figure img{width:100%;height:100%;object-fit:cover;transition:transform .5s ease;}
.nx-figure:hover img{transform:scale(1.03);}
.nx-figure figcaption{
  padding:12px 16px;font-size:13px;color:var(--nx-dim);
  border-top:1px solid var(--nx-line);
}

/* ============ 数据条 ============ */
.nx-stats{
  display:grid;grid-template-columns:repeat(2,1fr);
  background:rgba(16,26,51,.62);
  border:1px solid var(--nx-glass);
  border-radius:var(--nx-radius);
  box-shadow:inset 0 1px 0 rgba(255,255,255,.10),0 12px 34px rgba(0,0,0,.28);
  backdrop-filter:blur(14px);
  overflow:hidden;
}
.nx-stat{padding:24px 20px;border-right:1px solid var(--nx-line);border-bottom:1px solid var(--nx-line);}
.nx-stat:nth-child(2n){border-right:none;}
.nx-stat:nth-child(n+3){border-bottom:none;}
@media (min-width:768px){
  .nx-stats{grid-template-columns:repeat(4,1fr);}
  .nx-stat{border-bottom:none;border-right:1px solid var(--nx-line);}
  .nx-stat:nth-child(2n){border-right:1px solid var(--nx-line);}
  .nx-stat:last-child{border-right:none;}
}
.nx-stat-num{
  font-size:clamp(26px,3.4vw,36px);font-weight:700;line-height:1.1;
  color:var(--nx-primary);
  text-shadow:0 0 18px rgba(53,200,232,.35);
  font-variant-numeric:tabular-nums;
}
.nx-stat-label{font-size:14px;color:var(--nx-muted);margin-top:8px;line-height:1.6;}

/* ============ FAQ ============ */
.nx-faq{border-top:1px solid var(--nx-line);}
.nx-faq-item{border-bottom:1px solid var(--nx-line);position:relative;}
.nx-faq-item::before{
  content:"";position:absolute;left:0;top:8px;bottom:8px;width:3px;border-radius:3px;
  background:var(--nx-primary);opacity:0;transition:opacity .26s ease;
}
.nx-faq-item.is-open::before{opacity:1;}
.nx-faq-q{
  width:100%;background:none;border:none;
  display:flex;align-items:flex-start;justify-content:space-between;gap:18px;
  padding:22px 12px 22px 18px;
  text-align:left;cursor:pointer;
  font-size:17px;font-weight:600;color:var(--nx-text);line-height:1.6;
  transition:color .2s ease,padding-left .26s ease;
}
.nx-faq-q:hover{color:var(--nx-primary);}
.nx-faq-item.is-open .nx-faq-q{color:var(--nx-primary);padding-left:24px;}
.nx-faq-q i{
  flex:0 0 auto;margin-top:4px;font-size:14px;color:var(--nx-primary);
  transition:transform .26s ease;
}
.nx-faq-item.is-open .nx-faq-q i{transform:rotate(90deg);}
.nx-faq-a{
  max-height:0;overflow:hidden;
  transition:max-height .26s ease;
}
.nx-faq-a-inner{
  padding:0 12px 22px 24px;
  font-size:15px;line-height:1.85;color:var(--nx-muted);
  max-width:56em;
}

/* ============ CTA ============ */
.nx-cta{
  position:relative;
  border-radius:var(--nx-radius);
  border:1px solid var(--nx-glass);
  background-image:linear-gradient(rgba(7,12,26,.86),rgba(7,12,26,.94)),url("/assets/images/backpic/back-3.webp");
  background-size:cover;background-position:center;
  padding:44px 32px;
  overflow:hidden;
  box-shadow:var(--nx-shadow);
}
.nx-cta::after{
  content:"";position:absolute;right:-60px;top:-60px;width:220px;height:220px;border-radius:50%;
  border:1px solid rgba(53,200,232,.20);
  pointer-events:none;
}
.nx-cta-inner{position:relative;z-index:2;max-width:660px;}
.nx-cta h2{margin-bottom:14px;}
.nx-cta p{margin-bottom:26px;}
.nx-cta-actions{display:flex;flex-wrap:wrap;gap:14px;}

/* ============ 表单 ============ */
.nx-form-row{margin-bottom:18px;}
.nx-label{
  display:block;font-size:14px;font-weight:600;color:var(--nx-muted);
  margin-bottom:8px;
}
.nx-label .req{color:var(--nx-gold);margin-left:4px;}
.nx-input,.nx-select,.nx-textarea{
  width:100%;
  background:var(--nx-input);
  border:1px solid rgba(255,255,255,.12);
  border-radius:10px;
  color:var(--nx-text);
  font-size:15px;line-height:1.6;
  padding:12px 14px;
  transition:border-color .2s ease,box-shadow .2s ease,background .2s ease;
}
.nx-textarea{min-height:118px;resize:vertical;}
.nx-input::placeholder,.nx-textarea::placeholder{color:var(--nx-dim);}
.nx-input:focus,.nx-select:focus,.nx-textarea:focus{
  outline:none;
  border-color:var(--nx-primary);
  box-shadow:0 0 0 4px rgba(53,200,232,.15);
  background:#0F1A31;
}
.nx-select option{background:#0D1528;color:var(--nx-text);}
.nx-form-hint{font-size:13px;color:var(--nx-dim);margin-top:10px;}
.nx-info-list{list-style:none;padding:0;margin:0;}
.nx-info-list li{
  display:flex;gap:12px;align-items:flex-start;
  padding:14px 0;
  border-bottom:1px dashed var(--nx-line);
  font-size:15px;color:var(--nx-muted);
}
.nx-info-list li:last-child{border-bottom:none;}
.nx-info-list i{color:var(--nx-primary);margin-top:5px;flex:0 0 auto;}

/* ============ 页脚 ============ */
.nx-footer{
  background:#05080F;
  border-top:1px solid var(--nx-line);
  padding:60px 0 26px;
  margin-top:0;
}
.nx-footer h4{
  font-size:15px;font-weight:600;color:var(--nx-text);
  margin-bottom:18px;letter-spacing:.02em;
}
.nx-footer p{font-size:14px;line-height:1.8;color:var(--nx-dim);margin:16px 0 0;max-width:34em;}
.nx-footer ul{list-style:none;padding:0;margin:0;}
.nx-footer ul li{margin-bottom:10px;font-size:14px;color:var(--nx-dim);}
.nx-footer ul li a{color:var(--nx-muted);}
.nx-footer ul li a:hover{color:var(--nx-primary);text-decoration:none;}
.nx-footer-brand{
  display:flex;align-items:center;gap:10px;
  font-size:18px;font-weight:700;color:var(--nx-text);
}
.nx-footer-bottom{
  display:flex;flex-wrap:wrap;gap:10px 24px;justify-content:space-between;align-items:center;
  margin-top:44px;padding-top:22px;
  border-top:1px solid var(--nx-line);
  font-size:13px;color:var(--nx-dim);
}
.nx-footer-bottom a{color:var(--nx-dim);}
.nx-footer-bottom a:hover{color:var(--nx-primary);}

/* ============ 细节装饰 ============ */
.nx-tickline{
  height:1px;width:100%;
  background-image:repeating-linear-gradient(90deg,rgba(255,255,255,.14) 0 2px,transparent 2px 10px);
  margin:0;
}
.nx-tagline{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:18px;}
@media (max-width:575.98px){
  .nx-banner{padding:44px 0 40px;}
  .nx-banner-lead{font-size:16px;}
  .nx-card{padding:22px 18px;}
  .nx-cta{padding:32px 20px;}
  .nx-btn{width:100%;}
  .nx-cta-actions .nx-btn,.nx-banner-actions .nx-btn{width:100%;}
  .nx-block-foot .nx-btn{width:100%;}
}

/* roulang page: category4 */
:root{
  --bg:#070C1A;
  --bg-block:#0B1226;
  --card:#101A33;
  --input-bg:#0D1528;
  --primary:#35C8E8;
  --primary-deep:#1E9AC4;
  --violet:#8B5CF6;
  --gold:#FFC46B;
  --text:#E6ECF7;
  --muted:#97A6C4;
  --dim:#6E7C99;
  --line:rgba(255,255,255,.08);
  --glass-line:rgba(255,255,255,.10);
  --radius-lg:16px;
  --radius-md:12px;
  --radius-sm:10px;
  --pill:999px;
  --shadow-card:0 12px 28px rgba(0,0,0,.35);
  --shadow-soft:0 6px 18px rgba(0,0,0,.28);
  --bs-primary:#35C8E8;
  --bs-body-bg:#070C1A;
  --bs-body-color:#E6ECF7;
  --bs-link-color:#35C8E8;
  --bs-link-hover-color:#5fd8f2;
  --bs-border-color:rgba(255,255,255,.08);
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  padding:0 0 76px;
  background:var(--bg);
  color:var(--text);
  font-family:"PingFang SC","HarmonyOS Sans","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",Roboto,Helvetica,Arial,sans-serif;
  font-size:16px;
  line-height:1.85;
  font-weight:400;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;height:auto;display:block;border-radius:var(--radius-md);}
a{color:var(--primary);text-decoration:none;text-underline-offset:3px;}
a:hover{color:#5fd8f2;}
a:focus-visible,button:focus-visible,input:focus-visible,select:focus-visible,textarea:focus-visible{
  outline:2px solid var(--primary);
  outline-offset:2px;
  border-radius:6px;
}
h1,h2,h3,h4,h5{margin:0 0 .6em;color:var(--text);font-weight:700;}
p{margin:0 0 1.1em;color:var(--muted);}
ul{margin:0;padding:0;list-style:none;}
button{font-family:inherit;}
.container{width:100%;max-width:1240px;margin:0 auto;padding-left:20px;padding-right:20px;}
@media (min-width:1400px){.container{max-width:1320px;}}

/* ===== 顶部导航 ===== */
.nx-header{
  position:fixed;top:0;left:0;right:0;z-index:1030;
  background:rgba(7,12,26,.86);
  border-bottom:1px solid var(--line);
  backdrop-filter:blur(14px);
  transition:height .25s ease,background .25s ease;
}
.nx-header-inner{
  display:flex;align-items:center;gap:24px;height:72px;
  transition:height .25s ease;
}
.nx-header.is-scrolled{background:rgba(7,12,26,.94);}
.nx-header.is-scrolled .nx-header-inner{height:64px;}
.nx-brand{display:flex;align-items:center;gap:10px;flex:0 0 auto;color:var(--text);font-weight:700;font-size:17px;letter-spacing:-.01em;}
.nx-brand:hover{color:var(--text);}
.nx-logo-mark{
  width:26px;height:26px;border-radius:8px;flex:0 0 auto;
  background:linear-gradient(135deg,var(--primary) 0%,var(--violet) 100%);
  box-shadow:0 0 18px rgba(53,200,232,.45);
  position:relative;
}
.nx-logo-mark::after{
  content:"";position:absolute;inset:7px;border-radius:50%;
  background:rgba(7,12,26,.85);
}
.nx-nav{display:none;align-items:center;gap:4px;margin-left:auto;}
.nx-nav-link{
  position:relative;display:inline-block;padding:8px 14px;border-radius:var(--radius-sm);
  color:var(--muted);font-size:15px;font-weight:500;transition:color .2s ease,background .2s ease;
}
.nx-nav-link:hover{color:var(--text);background:rgba(255,255,255,.05);}
.nx-nav-link.is-active{color:var(--primary);}
.nx-nav-link.is-active::after{
  content:"";position:absolute;left:14px;right:14px;bottom:2px;height:2px;border-radius:2px;
  background:var(--primary);box-shadow:0 0 10px rgba(53,200,232,.75);
}
.nx-header-cta{display:none;}

/* ===== 按钮 ===== */
.nx-btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:12px 24px;border-radius:var(--radius-md);border:1px solid transparent;
  font-size:15px;font-weight:600;line-height:1.2;cursor:pointer;
  transition:transform .22s ease,box-shadow .22s ease,background .22s ease,border-color .22s ease,color .22s ease;
}
.nx-btn-primary{
  background:linear-gradient(135deg,var(--primary) 0%,var(--violet) 100%);
  color:#061018;
  box-shadow:0 8px 22px rgba(53,200,232,.22);
}
.nx-btn-primary:hover{color:#061018;filter:brightness(1.08);transform:translateY(-2px);box-shadow:0 0 24px rgba(53,200,232,.45);}
.nx-btn-ghost{
  background:transparent;border-color:rgba(53,200,232,.55);color:var(--primary);
}
.nx-btn-ghost:hover{background:rgba(53,200,232,.12);color:var(--primary);transform:translateY(-2px);}
.nx-btn-text{
  background:none;border:none;padding:6px 0;color:var(--primary);font-size:15px;font-weight:600;
  display:inline-flex;align-items:center;gap:8px;transition:transform .22s ease,color .22s ease;
}
.nx-btn-text i{transition:transform .22s ease;}
.nx-btn-text:hover{transform:translateX(4px);color:#5fd8f2;}
.nx-btn:disabled,.nx-btn.is-loading{opacity:.62;cursor:not-allowed;transform:none;box-shadow:none;}

/* ===== 分类横幅 ===== */
.nx-banner{
  position:relative;
  margin-top:72px;
  padding:56px 0 48px;
  background:url('/assets/images/backpic/back-1.webp') center/cover no-repeat;
  overflow:hidden;
}
.nx-banner::before{
  content:"";position:absolute;inset:0;
  background:
    radial-gradient(900px 380px at 12% 12%,rgba(53,200,232,.16),transparent 62%),
    linear-gradient(180deg,rgba(7,12,26,.80) 0%,rgba(7,12,26,.93) 100%);
}
.nx-banner::after{
  content:"";position:absolute;inset:0;opacity:.5;pointer-events:none;
  background-image:radial-gradient(rgba(255,255,255,.16) 1px,transparent 1px);
  background-size:34px 34px;
  mask-image:linear-gradient(180deg,rgba(0,0,0,.9),transparent 78%);
  -webkit-mask-image:linear-gradient(180deg,rgba(0,0,0,.9),transparent 78%);
}
.nx-banner .container{position:relative;z-index:2;}
.nx-crumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--dim);margin-bottom:18px;}
.nx-crumb a{color:var(--muted);}
.nx-crumb a:hover{color:var(--primary);}
.nx-crumb span.sep{color:var(--dim);}
.nx-crumb .cur{color:var(--primary);}
.nx-banner h1{
  font-size:clamp(30px,4.2vw,50px);line-height:1.22;letter-spacing:-.02em;font-weight:700;
  max-width:20em;margin-bottom:16px;
}
.nx-banner h1 em{
  font-style:normal;
  background:linear-gradient(120deg,var(--primary),var(--violet));
  -webkit-background-clip:text;background-clip:text;color:transparent;
}
.nx-banner-lead{font-size:17px;color:var(--muted);max-width:36em;margin-bottom:26px;}
.nx-banner-actions{display:flex;flex-wrap:wrap;gap:14px;}
.nx-banner-meta{
  display:flex;flex-wrap:wrap;gap:10px;margin-top:26px;
}
.nx-chip{
  display:inline-flex;align-items:center;gap:7px;
  padding:6px 14px;border-radius:var(--pill);
  background:rgba(53,200,232,.10);border:1px solid rgba(53,200,232,.28);
  color:#a8e6f6;font-size:13px;font-weight:500;
}
.nx-chip.is-violet{background:rgba(139,92,246,.12);border-color:rgba(139,92,246,.32);color:#cbb9fb;}
.nx-chip.is-gold{background:rgba(255,196,107,.10);border-color:rgba(255,196,107,.30);color:var(--gold);}

/* ===== 通用板块 ===== */
.nx-section{padding:56px 0;position:relative;}
.nx-section.is-block{background:var(--bg-block);border-top:1px solid var(--line);border-bottom:1px solid var(--line);}
.nx-section-head{max-width:44em;margin-bottom:34px;}
.nx-eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;letter-spacing:.14em;text-transform:uppercase;
  color:var(--primary);font-weight:600;margin-bottom:12px;
}
.nx-eyebrow::before{content:"";width:22px;height:2px;border-radius:2px;background:var(--primary);box-shadow:0 0 10px rgba(53,200,232,.8);}
.nx-section h2{font-size:clamp(23px,3vw,34px);line-height:1.3;letter-spacing:-.01em;}
.nx-section .nx-lead{font-size:16px;color:var(--muted);max-width:38em;}
.nx-rule{
  height:1px;border:0;margin:0;
  background:linear-gradient(90deg,transparent,rgba(255,255,255,.16) 18%,rgba(255,255,255,.16) 82%,transparent);
}

/* ===== 数据条 ===== */
.nx-stats{
  display:grid;grid-template-columns:repeat(2,minmax(0,1fr));
  gap:20px;padding:26px 20px;border-radius:var(--radius-lg);
  background:rgba(16,26,51,.72);border:1px solid var(--glass-line);
  backdrop-filter:blur(14px);box-shadow:inset 0 1px 0 rgba(255,255,255,.10),0 10px 26px rgba(0,0,0,.28);
}
.nx-stat{text-align:center;padding:6px 4px;position:relative;}
.nx-stat + .nx-stat::before{
  content:"";position:absolute;left:-10px;top:14%;bottom:14%;width:1px;background:var(--line);
}
.nx-stat strong{
  display:block;font-size:clamp(28px,3.4vw,38px);line-height:1.1;font-weight:700;
  color:var(--primary);text-shadow:0 0 22px rgba(53,200,232,.42);
}
.nx-stat span{display:block;margin-top:8px;font-size:13px;color:var(--dim);}

/* ===== 图文交替 ===== */
.nx-split{display:grid;grid-template-columns:1fr;gap:30px;align-items:center;padding:34px 0;}
.nx-split + .nx-split{border-top:1px dashed rgba(255,255,255,.10);}
.nx-split-media{position:relative;border-radius:var(--radius-lg);overflow:hidden;border:1px solid var(--glass-line);box-shadow:var(--shadow-card);}
.nx-split-media img{width:100%;height:100%;object-fit:cover;border-radius:0;transition:transform .5s ease;}
.nx-split-media:hover img{transform:scale(1.03);}
.nx-split-media::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(7,12,26,0) 40%,rgba(7,12,26,.55) 100%);
  pointer-events:none;
}
.nx-split-tag{
  position:absolute;left:16px;top:16px;z-index:2;
  display:inline-flex;align-items:center;gap:7px;
  padding:6px 13px;border-radius:var(--pill);
  background:rgba(7,12,26,.78);border:1px solid var(--glass-line);
  color:var(--primary);font-size:12.5px;font-weight:600;backdrop-filter:blur(8px);
}
.nx-split h3{font-size:20px;font-weight:600;margin-bottom:12px;}
.nx-split-body p{max-width:38em;}
.nx-points{margin:18px 0 0;}
.nx-points li{
  position:relative;padding-left:26px;margin-bottom:10px;color:var(--muted);font-size:15px;
}
.nx-points li::before{
  content:"";position:absolute;left:0;top:11px;width:9px;height:9px;border-radius:50%;
  background:radial-gradient(circle,var(--primary) 0%,var(--primary-deep) 100%);
  box-shadow:0 0 10px rgba(53,200,232,.6);
}
.nx-points li strong{color:var(--text);font-weight:600;}

/* ===== 步骤流程 ===== */
.nx-steps{display:grid;grid-template-columns:1fr;gap:18px;margin-top:8px;}
.nx-step{
  position:relative;display:flex;gap:16px;
  padding:22px 20px;border-radius:var(--radius-lg);
  background:var(--card);border:1px solid var(--line);
  transition:border-color .25s ease,transform .25s ease,box-shadow .25s ease;
}
.nx-step:hover{border-color:rgba(53,200,232,.32);transform:translateY(-4px);box-shadow:var(--shadow-card);}
.nx-step-no{
  flex:0 0 auto;width:38px;height:38px;border-radius:12px;
  display:flex;align-items:center;justify-content:center;
  font-size:15px;font-weight:700;color:#061018;
  background:linear-gradient(135deg,var(--primary),var(--primary-deep));
}
.nx-step h4{font-size:17px;font-weight:600;margin-bottom:6px;}
.nx-step p{font-size:14.5px;margin-bottom:0;}

/* ===== 支持范围清单 ===== */
.nx-scope{display:grid;grid-template-columns:1fr;gap:18px;margin-top:6px;}
.nx-scope-card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--radius-lg);
  padding:24px 22px;box-shadow:var(--shadow-soft);
  transition:border-color .25s ease,transform .25s ease;
}
.nx-scope-card:hover{border-color:rgba(53,200,232,.30);transform:translateY(-4px);}
.nx-scope-card .nx-ico{
  width:42px;height:42px;border-radius:12px;display:flex;align-items:center;justify-content:center;
  background:rgba(53,200,232,.12);border:1px solid rgba(53,200,232,.26);color:var(--primary);
  font-size:18px;margin-bottom:14px;
}
.nx-scope-card h4{font-size:17px;font-weight:600;margin-bottom:8px;}
.nx-scope-card p{font-size:14.5px;margin-bottom:0;}
.nx-tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:22px;}
.nx-tag{
  padding:6px 14px;border-radius:var(--pill);font-size:13px;
  background:rgba(139,92,246,.12);border:1px solid rgba(139,92,246,.30);color:#cbb9fb;
}

/* ===== FAQ ===== */
.nx-faq{border-radius:var(--radius-lg);overflow:hidden;background:rgba(16,26,51,.70);
  border:1px solid var(--glass-line);backdrop-filter:blur(14px);
  box-shadow:inset 0 1px 0 rgba(255,255,255,.10),0 10px 26px rgba(0,0,0,.26);}
.nx-faq-item + .nx-faq-item{border-top:1px solid var(--line);}
.nx-faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:20px 22px;background:none;border:0;text-align:left;
  color:var(--text);font-size:16.5px;font-weight:600;cursor:pointer;
  transition:background .2s ease,color .2s ease;
}
.nx-faq-q:hover{background:rgba(53,200,232,.06);}
.nx-faq-q i{color:var(--primary);font-size:14px;transition:transform .26s ease;flex:0 0 auto;}
.nx-faq-item.is-open .nx-faq-q{color:var(--primary);border-left:3px solid var(--primary);}
.nx-faq-item.is-open .nx-faq-q i{transform:rotate(90deg);}
.nx-faq-a{
  max-height:0;overflow:hidden;transition:max-height .26s ease;
  padding:0 22px;
}
.nx-faq-item.is-open .nx-faq-a{max-height:420px;padding-bottom:20px;}
.nx-faq-a p{font-size:15px;line-height:1.85;margin-bottom:0;}

/* ===== 表单与 CTA ===== */
.nx-cta-wrap{
  display:grid;grid-template-columns:1fr;gap:24px;
  padding:32px 22px;border-radius:var(--radius-lg);
  background:
    radial-gradient(700px 320px at 88% 0%,rgba(139,92,246,.18),transparent 68%),
    linear-gradient(135deg,#0F1B36 0%,#0B1226 100%);
  border:1px solid var(--glass-line);
  box-shadow:var(--shadow-card);
}
.nx-form{display:grid;grid-template-columns:1fr;gap:16px;}
.nx-field label{display:block;font-size:14px;color:var(--muted);margin-bottom:8px;font-weight:500;}
.nx-field label .req{color:var(--gold);margin-left:4px;}
.nx-field input,.nx-field select,.nx-field textarea{
  width:100%;padding:12px 14px;border-radius:var(--radius-sm);
  background:var(--input-bg);border:1px solid rgba(255,255,255,.12);
  color:var(--text);font-size:15px;line-height:1.6;
  transition:border-color .2s ease,box-shadow .2s ease;
}
.nx-field textarea{min-height:110px;resize:vertical;}
.nx-field input::placeholder,.nx-field textarea::placeholder{color:var(--dim);}
.nx-field input:focus,.nx-field select:focus,.nx-field textarea:focus{
  outline:none;border-color:var(--primary);box-shadow:0 0 0 4px rgba(53,200,232,.15);
}
.nx-form-note{font-size:13px;color:var(--dim);margin:0;}
.nx-cta-aside{
  padding:24px 22px;border-radius:var(--radius-lg);
  background:rgba(7,12,26,.55);border:1px solid var(--glass-line);
}
.nx-cta-aside h3{font-size:19px;font-weight:600;margin-bottom:12px;}
.nx-cta-aside ul li{
  display:flex;gap:10px;align-items:flex-start;
  padding:11px 0;border-bottom:1px dashed rgba(255,255,255,.10);
  font-size:14.5px;color:var(--muted);
}
.nx-cta-aside ul li:last-child{border-bottom:0;}
.nx-cta-aside ul li i{color:var(--primary);margin-top:6px;font-size:13px;}

/* ===== 页脚 ===== */
.nx-footer{
  background:var(--bg-block);border-top:1px solid var(--line);
  padding:52px 0 26px;margin-top:8px;
}
.nx-footer-brand{display:flex;align-items:center;gap:10px;font-size:17px;font-weight:700;margin-bottom:14px;color:var(--text);}
.nx-footer h4{font-size:15px;font-weight:600;margin-bottom:16px;color:var(--text);}
.nx-footer p{font-size:14.5px;color:var(--muted);max-width:34em;}
.nx-footer ul li{margin-bottom:10px;}
.nx-footer ul li a,.nx-footer ul li span{font-size:14.5px;color:var(--muted);}
.nx-footer ul li a:hover{color:var(--primary);}
.nx-footer-bottom{
  display:flex;flex-wrap:wrap;gap:10px;justify-content:space-between;
  margin-top:36px;padding-top:20px;border-top:1px solid var(--line);
  font-size:13px;color:var(--dim);
}

/* ===== 移动底部 Tab ===== */
.nx-tabbar{
  position:fixed;left:0;right:0;bottom:0;z-index:1040;
  display:grid;grid-template-columns:repeat(5,1fr);
  background:rgba(11,18,38,.96);
  border-top:1px solid var(--line);
  backdrop-filter:blur(14px);
  padding-bottom:env(safe-area-inset-bottom);
}
.nx-tab{
  display:flex;flex-direction:column;align-items:center;gap:4px;
  padding:10px 4px 9px;color:var(--dim);font-size:11px;line-height:1.2;text-align:center;
  transition:color .2s ease;
}
.nx-tab i{font-size:18px;position:relative;}
.nx-tab:hover{color:var(--muted);}
.nx-tab.is-active{color:var(--primary);}
.nx-tab.is-active i::after{
  content:"";position:absolute;left:50%;bottom:-6px;width:4px;height:4px;border-radius:50%;
  transform:translateX(-50%);background:var(--primary);box-shadow:0 0 10px rgba(53,200,232,.9);
}

/* ===== 响应式 ===== */
@media (min-width:576px){
  .nx-scope{grid-template-columns:repeat(2,minmax(0,1fr));}
  .nx-steps{grid-template-columns:repeat(2,minmax(0,1fr));}
}
@media (min-width:768px){
  body{font-size:16px;}
  .nx-section{padding:72px 0;}
  .nx-banner{padding:64px 0 56px;}
  .nx-stats{grid-template-columns:repeat(4,minmax(0,1fr));padding:30px 24px;}
  .nx-split{grid-template-columns:repeat(2,minmax(0,1fr));gap:44px;padding:40px 0;}
  .nx-split.is-reverse .nx-split-media{order:2;}
  .nx-split.is-reverse .nx-split-body{order:1;}
  .nx-cta-wrap{grid-template-columns:1.15fr .85fr;padding:38px 30px;}
  .nx-form{grid-template-columns:repeat(2,minmax(0,1fr));}
  .nx-form .nx-field-full{grid-column:1 / -1;}
  .nx-footer{padding:64px 0 30px;}
}
@media (min-width:992px){
  body{padding-bottom:0;}
  .nx-tabbar{display:none;}
  .nx-nav{display:flex;}
  .nx-header-cta{display:inline-flex;padding:10px 20px;}
  .nx-section{padding:96px 0;}
  .nx-banner{margin-top:72px;padding:76px 0 66px;min-height:320px;display:flex;align-items:center;}
  .nx-split{gap:56px;}
}
@media (min-width:1200px){
  .nx-section{padding:112px 0;}
  .nx-banner{padding:88px 0 76px;}
}