/* roulang page: index */
:root{
  --c-primary:#5B3DF5;
  --c-primary-d:#4527D6;
  --c-primary-l:#EDE9FE;
  --c-second:#17C3B2;
  --c-second-l:#DFF7F4;
  --c-accent:#FFB627;
  --c-ink:#1B1533;
  --c-text:#2A2540;
  --c-text-2:#6B6584;
  --c-text-3:#9A94AE;
  --c-bg:#F6F5FB;
  --c-card:#FFFFFF;
  --c-line:#E6E2F2;
  --g-brand:linear-gradient(120deg,#5B3DF5 0%,#17C3B2 100%);
  --g-soft:linear-gradient(135deg,#F1EEFF 0%,#E5F7F5 100%);
  --r-xl:28px;
  --r-lg:24px;
  --r-md:20px;
  --r-sm:14px;
  --r-xs:12px;
  --sh-1:0 2px 8px rgba(27,21,51,.06);
  --sh-2:0 14px 36px rgba(91,61,245,.14);
  --gap:88px;
  --ease:cubic-bezier(.2,.7,.3,1);
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body{
  margin:0;
  background:var(--c-bg);
  color:var(--c-text);
  font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC","Noto Sans SC",system-ui,sans-serif;
  font-size:17px;
  line-height:1.85;
  font-variant-numeric:tabular-nums;
  overflow-x:hidden;
}
img{max-width:100%;display:block;border:0;}
a{color:inherit;text-decoration:none;}
a:hover{color:var(--c-primary);}
h1,h2,h3,h4,p,ul,ol,li,figure{margin:0;padding:0;}
ul,ol{list-style:none;}
button,input,select,textarea{font-family:inherit;font-size:inherit;color:inherit;}
button{cursor:pointer;border:0;background:none;}
:focus-visible{outline:2px solid var(--c-primary);outline-offset:2px;border-radius:4px;}
::selection{background:var(--c-primary-l);color:var(--c-primary-d);}

.ng-container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px;}
.ng-section{padding:var(--gap) 0;}
.ng-section--soft{background:var(--g-soft);}
.ng-section--plain{background:#fff;}

.ng-kicker{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;font-weight:600;letter-spacing:.02em;
  color:var(--c-primary);
  background:var(--c-primary-l);
  border-radius:999px;padding:6px 16px;margin-bottom:16px;
}
.ng-kicker::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--c-second);}
.ng-h2{font-size:30px;font-weight:700;line-height:1.35;letter-spacing:-.01em;color:var(--c-ink);}
.ng-h3{font-size:20px;font-weight:600;line-height:1.5;color:var(--c-ink);}
.ng-lead{font-size:16px;color:var(--c-text-2);line-height:1.85;margin-top:12px;max-width:720px;}
.ng-section__head{margin-bottom:36px;}
.ng-section__head--row{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;flex-wrap:wrap;}

.ng-btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 26px;border-radius:var(--r-sm);
  font-size:15px;font-weight:600;letter-spacing:.01em;
  transition:transform .2s var(--ease),box-shadow .2s var(--ease),background .2s var(--ease),color .2s var(--ease),border-color .2s var(--ease);
  white-space:nowrap;
}
.ng-btn--primary{background:var(--g-brand);color:#fff;box-shadow:0 6px 18px rgba(91,61,245,.22);}
.ng-btn--primary:hover{color:#fff;box-shadow:0 12px 30px rgba(91,61,245,.32);transform:translateY(-2px);background:linear-gradient(240deg,#5B3DF5 0%,#17C3B2 100%);}
.ng-btn--ghost{background:rgba(255,255,255,.9);color:var(--c-primary);border:1.5px solid var(--c-primary);}
.ng-btn--ghost:hover{background:var(--c-primary-l);color:var(--c-primary-d);transform:translateY(-2px);}
.ng-btn--dark{background:var(--c-ink);color:#fff;}
.ng-btn--dark:hover{background:#2b2350;color:#fff;transform:translateY(-2px);}
.ng-btn--pill{border-radius:999px;height:44px;padding:0 22px;}
.ng-btn--sm{height:40px;padding:0 18px;font-size:14px;}
.ng-btn--block{width:100%;}
.ng-textlink{color:var(--c-primary);font-weight:600;font-size:15px;display:inline-flex;align-items:center;gap:6px;}
.ng-textlink:hover{text-decoration:underline;text-underline-offset:4px;}

/* ---------- 头部导航 ---------- */
.ng-header{
  position:sticky;top:0;z-index:60;
  background:rgba(255,255,255,.92);
  backdrop-filter:blur(10px);
  border-bottom:1px solid transparent;
  transition:background .25s var(--ease),box-shadow .25s var(--ease),border-color .25s var(--ease);
}
.ng-header.is-scrolled{background:rgba(255,255,255,.96);border-bottom-color:var(--c-line);box-shadow:0 4px 20px rgba(27,21,51,.06);}
.ng-nav{display:flex;align-items:center;justify-content:space-between;gap:20px;height:72px;}
.ng-logo{display:flex;align-items:center;gap:10px;font-size:19px;font-weight:700;color:var(--c-ink);letter-spacing:-.01em;}
.ng-logo__mark{
  width:32px;height:32px;border-radius:10px;background:var(--g-brand);
  display:flex;align-items:center;justify-content:center;color:#fff;font-size:14px;font-weight:700;flex:none;
}
.ng-logo__text{white-space:nowrap;}
.ng-nav__links{display:flex;align-items:center;gap:4px;}
.ng-nav__link{
  position:relative;display:inline-flex;align-items:center;
  height:38px;padding:0 16px;border-radius:999px;
  font-size:15px;font-weight:500;color:var(--c-text-2);
  transition:color .2s var(--ease),background .2s var(--ease);
}
.ng-nav__link:hover{color:var(--c-primary);background:var(--c-primary-l);}
.ng-nav__link.is-active{color:var(--c-primary);font-weight:600;background:var(--c-primary-l);}
.ng-nav__link.is-active::after{
  content:"";position:absolute;left:50%;bottom:4px;transform:translateX(-50%);
  width:5px;height:5px;border-radius:50%;background:var(--c-primary);
}
.ng-nav__actions{display:flex;align-items:center;gap:10px;}
.ng-burger{
  display:none;width:44px;height:44px;border-radius:12px;border:1px solid var(--c-line);
  background:#fff;align-items:center;justify-content:center;flex-direction:column;gap:4px;
}
.ng-burger span{display:block;width:18px;height:2px;background:var(--c-ink);border-radius:2px;transition:transform .2s var(--ease),opacity .2s var(--ease);}
.ng-drawer{
  position:fixed;inset:0;z-index:90;display:none;
}
.ng-drawer.is-open{display:block;}
.ng-drawer__mask{position:absolute;inset:0;background:rgba(27,21,51,.45);}
.ng-drawer__panel{
  position:absolute;top:0;right:0;bottom:0;width:min(320px,86vw);
  background:#fff;display:flex;flex-direction:column;
  box-shadow:-12px 0 40px rgba(27,21,51,.18);
  animation:ngSlide .24s var(--ease);
}
@keyframes ngSlide{from{transform:translateX(24px);opacity:.4;}to{transform:translateX(0);opacity:1;}}
.ng-drawer__head{display:flex;align-items:center;justify-content:space-between;padding:16px 20px;border-bottom:1px solid var(--c-line);}
.ng-drawer__close{width:40px;height:40px;border-radius:12px;border:1px solid var(--c-line);font-size:18px;color:var(--c-text-2);display:flex;align-items:center;justify-content:center;}
.ng-drawer__links{padding:8px 12px;flex:1;overflow-y:auto;}
.ng-drawer__link{display:flex;align-items:center;height:48px;padding:0 14px;border-radius:12px;font-size:16px;font-weight:500;color:var(--c-text);}
.ng-drawer__link:hover{background:var(--c-primary-l);color:var(--c-primary);}
.ng-drawer__link.is-active{color:var(--c-primary);background:var(--c-primary-l);font-weight:600;}
.ng-drawer__foot{padding:16px 20px 24px;border-top:1px solid var(--c-line);}

/* ---------- 倒计时条 ---------- */
.ng-countdown{background:var(--c-ink);color:#fff;}
.ng-countdown__inner{display:flex;align-items:center;justify-content:space-between;gap:20px;min-height:56px;padding:8px 0;flex-wrap:wrap;}
.ng-countdown__label{display:flex;align-items:center;gap:10px;font-size:14px;color:rgba(255,255,255,.82);}
.ng-countdown__dot{width:8px;height:8px;border-radius:50%;background:var(--c-accent);box-shadow:0 0 0 4px rgba(255,182,39,.18);flex:none;}
.ng-clock{display:flex;align-items:center;gap:8px;overflow-x:auto;scroll-snap-type:x proximity;padding:4px 0;}
.ng-clock::-webkit-scrollbar{display:none;}
.ng-clock__unit{display:flex;align-items:center;gap:6px;background:rgba(255,255,255,.1);border-radius:8px;padding:4px 10px;scroll-snap-align:start;flex:none;}
.ng-clock__num{font-size:20px;font-weight:700;color:var(--c-accent);font-variant-numeric:tabular-nums;min-width:32px;text-align:center;}
.ng-clock__txt{font-size:12px;color:rgba(255,255,255,.7);}
.ng-countdown .ng-btn--ghost{background:rgba(255,255,255,.94);border-color:transparent;color:var(--c-primary-d);}

/* ---------- Hero ---------- */
.ng-hero{position:relative;background:#1B1533;overflow:hidden;color:#fff;}
.ng-hero__bg{position:absolute;inset:0;background-image:url('/assets/images/backpic/back-1.png');background-size:cover;background-position:center;opacity:.55;}
.ng-hero__mask{position:absolute;inset:0;background:linear-gradient(120deg,rgba(27,21,51,.94) 0%,rgba(69,39,214,.78) 52%,rgba(23,195,178,.55) 100%);}
.ng-hero__pattern{
  position:absolute;inset:0;opacity:.06;
  background-image:linear-gradient(rgba(255,255,255,.6) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.6) 1px,transparent 1px);
  background-size:56px 56px;
}
.ng-hero__inner{position:relative;z-index:2;padding:76px 0 84px;display:flex;align-items:center;}
.ng-hero__title{font-size:44px;font-weight:700;line-height:1.25;letter-spacing:-.01em;color:#fff;}
.ng-hero__sub{font-size:17px;line-height:1.9;color:rgba(255,255,255,.86);margin-top:18px;max-width:560px;}
.ng-hero__actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:30px;}
.ng-hero__badges{display:flex;flex-wrap:wrap;gap:12px;margin-top:34px;}
.ng-badge{
  display:inline-flex;align-items:baseline;gap:8px;
  background:rgba(255,255,255,.12);border:1px solid rgba(255,255,255,.2);
  border-radius:999px;padding:8px 18px;
}
.ng-badge__num{font-size:20px;font-weight:700;color:var(--c-accent);}
.ng-badge__txt{font-size:13px;color:rgba(255,255,255,.8);}
.ng-hero__card{
  background:rgba(255,255,255,.94);
  border-radius:var(--r-lg);
  padding:16px;
  box-shadow:0 24px 60px rgba(10,6,30,.35);
}
.ng-hero__cardimg{border-radius:18px;overflow:hidden;}
.ng-hero__cardimg img{width:100%;height:230px;object-fit:cover;transition:transform .4s var(--ease);}
.ng-hero__card:hover .ng-hero__cardimg img{transform:scale(1.03);}
.ng-hero__cardrows{margin-top:14px;display:flex;flex-direction:column;gap:10px;}
.ng-hero__row{display:flex;align-items:center;justify-content:space-between;gap:12px;padding:10px 14px;border-radius:14px;background:var(--c-bg);}
.ng-hero__row-name{font-size:14px;color:var(--c-text-2);}
.ng-hero__row-val{font-size:15px;font-weight:700;color:var(--c-primary);}

/* ---------- 卖点 2x2 ---------- */
.ng-grid-2x2{display:grid;grid-template-columns:repeat(2,1fr);gap:24px;}
.ng-feature{
  display:flex;gap:20px;background:var(--c-card);border:1px solid var(--c-line);
  border-radius:var(--r-lg);padding:28px;box-shadow:var(--sh-1);
  transition:transform .2s var(--ease),box-shadow .2s var(--ease),border-color .2s var(--ease);
}
.ng-feature:hover{transform:translateY(-3px);box-shadow:var(--sh-2);border-color:#D7CEF9;}
.ng-feature__no{font-size:48px;font-weight:700;line-height:1;color:rgba(91,61,245,.14);flex:none;letter-spacing:-.03em;}
.ng-feature__body{flex:1;}
.ng-feature__title{font-size:19px;font-weight:600;color:var(--c-ink);}
.ng-feature__desc{font-size:15px;line-height:1.7;color:var(--c-text-2);margin-top:8px;}
.ng-feature__tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:14px;}
.ng-tag{display:inline-block;font-size:12px;font-weight:600;color:var(--c-second);background:var(--c-second-l);border-radius:999px;padding:4px 12px;}
.ng-tag--purple{color:var(--c-primary);background:var(--c-primary-l);}

/* ---------- 图墙 ---------- */
.ng-gallery{display:grid;grid-template-columns:repeat(6,1fr);gap:16px;}
.ng-gallery__item{position:relative;border-radius:var(--r-md);overflow:hidden;background:#fff;box-shadow:var(--sh-1);}
.ng-gallery__item--big{grid-column:span 3;}
.ng-gallery__item--sm{grid-column:span 2;}
.ng-gallery__item img{width:100%;height:100%;object-fit:cover;transition:transform .45s var(--ease);}
.ng-gallery__item--big img{aspect-ratio:16/10;}
.ng-gallery__item--sm img{aspect-ratio:4/3;}
.ng-gallery__item:hover img{transform:scale(1.04);}
.ng-gallery__label{
  position:absolute;left:14px;bottom:14px;
  background:rgba(27,21,51,.72);color:#fff;
  font-size:13px;font-weight:500;border-radius:999px;padding:6px 14px;backdrop-filter:blur(4px);
}
.ng-gallery__chip{
  position:absolute;right:14px;bottom:14px;
  background:rgba(255,255,255,.94);color:var(--c-primary);
  font-size:12px;font-weight:700;border-radius:999px;padding:6px 12px;
}

/* ---------- 数据条 ---------- */
.ng-stats{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;}
.ng-stat{
  background:#fff;border:1px solid var(--c-line);border-radius:var(--r-md);
  padding:26px 22px;box-shadow:var(--sh-1);text-align:left;
}
.ng-stat__num{font-size:28px;font-weight:700;color:var(--c-primary);line-height:1.2;}
.ng-stat__label{font-size:14px;color:var(--c-text-2);margin-top:6px;}

/* ---------- CTA 表单 ---------- */
.ng-cta{
  background:var(--g-brand);border-radius:var(--r-xl);padding:48px;
  display:grid;grid-template-columns:7fr 5fr;gap:40px;align-items:start;color:#fff;
  box-shadow:0 24px 60px rgba(91,61,245,.24);
}
.ng-cta__title{font-size:28px;font-weight:700;line-height:1.4;color:#fff;}
.ng-cta__desc{font-size:15px;line-height:1.8;color:rgba(255,255,255,.88);margin-top:12px;}
.ng-form{margin-top:24px;display:grid;gap:16px;}
.ng-field{display:flex;flex-direction:column;gap:8px;}
.ng-field label{font-size:14px;font-weight:600;color:rgba(255,255,255,.95);}
.ng-field input,.ng-field select{
  height:48px;border-radius:var(--r-xs);border:1.5px solid transparent;background:#fff;
  color:var(--c-text);padding:0 14px;font-size:15px;transition:border-color .2s var(--ease),box-shadow .2s var(--ease);
}
.ng-field input::placeholder{color:var(--c-text-3);}
.ng-field input:focus,.ng-field select:focus{outline:none;border-color:var(--c-primary-d);box-shadow:0 0 0 3px rgba(255,255,255,.35);}
.ng-form__note{font-size:12.5px;color:rgba(255,255,255,.78);line-height:1.7;}
.ng-cta__side{display:flex;flex-direction:column;gap:14px;}
.ng-cta__sideimg{border-radius:var(--r-md);overflow:hidden;}
.ng-cta__sideimg img{width:100%;height:220px;object-fit:cover;}
.ng-cta__minis{display:grid;grid-template-columns:1fr;gap:10px;}
.ng-cta__mini{background:rgba(255,255,255,.16);border:1px solid rgba(255,255,255,.24);border-radius:14px;padding:12px 16px;display:flex;align-items:baseline;justify-content:space-between;gap:10px;}
.ng-cta__mini b{font-size:18px;color:#fff;}
.ng-cta__mini span{font-size:13px;color:rgba(255,255,255,.8);}

/* ---------- FAQ ---------- */
.ng-faq{margin:0;border:0;background:transparent;}
.ng-faq.accordion{border:0;background:transparent;}
.ng-faq .accordion-item{border:0;background:transparent;margin-bottom:12px;}
.ng-faq .accordion-title{
  background:#fff;border:1px solid var(--c-line);border-radius:16px;
  padding:20px 56px 20px 22px;font-size:17px;font-weight:600;color:var(--c-ink);
  position:relative;transition:border-color .2s var(--ease),box-shadow .2s var(--ease),color .2s var(--ease);
}
.ng-faq .accordion-title:hover{color:var(--c-primary);border-color:#D7CEF9;box-shadow:var(--sh-1);}
.ng-faq .accordion-title::before{
  content:"+";position:absolute;right:22px;top:50%;transform:translateY(-50%);
  font-size:22px;font-weight:400;color:var(--c-primary);line-height:1;
}
.ng-faq .accordion-item.is-active .accordion-title{
  color:var(--c-primary);border-color:#D7CEF9;border-bottom-left-radius:0;border-bottom-right-radius:0;
}
.ng-faq .accordion-item.is-active .accordion-title::before{content:"−";}
.ng-faq .accordion-item.is-active .accordion-title::after{
  content:"";position:absolute;left:0;top:14px;bottom:14px;width:4px;border-radius:0 4px 4px 0;background:var(--g-brand);
}
.ng-faq .accordion-content{
  display:none;background:#fff;border:1px solid #D7CEF9;border-top:0;
  border-radius:0 0 16px 16px;padding:6px 22px 22px;color:var(--c-text-2);
  font-size:15px;line-height:1.8;
}
.ng-faq .accordion-content.is-open{display:block;}

/* ---------- 资讯列表 ---------- */
.news-list{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.news-card{
  display:flex;flex-direction:column;background:#fff;border:1px solid var(--c-line);
  border-radius:var(--r-md);overflow:hidden;box-shadow:var(--sh-1);
  transition:transform .2s var(--ease),box-shadow .2s var(--ease),border-color .2s var(--ease);
}
.news-card:hover{transform:translateY(-3px);box-shadow:var(--sh-2);border-color:#D7CEF9;}
.news-card__thumb{overflow:hidden;background:var(--c-bg);}
.news-card__thumb img{width:100%;aspect-ratio:16/10;object-fit:cover;transition:transform .4s var(--ease);}
.news-card:hover .news-card__thumb img{transform:scale(1.03);}
.news-card__body{padding:20px 22px 22px;display:flex;flex-direction:column;flex:1;}
.news-card__title{
  font-size:17px;font-weight:600;line-height:1.55;color:var(--c-ink);
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.news-card__link{display:block;}
.news-card__link:hover{color:var(--c-primary);}
.news-card__excerpt{
  font-size:15px;line-height:1.7;color:var(--c-text-2);margin-top:10px;
  display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden;
}
.news-card__meta{
  margin-top:18px;padding-top:14px;border-top:1px dashed var(--c-line);
  display:flex;align-items:center;justify-content:space-between;gap:12px;
  font-size:13px;color:var(--c-text-2);
}
.news-card__cat{display:inline-block;font-size:12px;font-weight:600;color:var(--c-primary);background:var(--c-primary-l);border-radius:999px;padding:3px 11px;}
.news-card__arrow{color:var(--c-primary);font-size:16px;line-height:1;}
.news-empty{
  background:#fff;border:1px dashed var(--c-line);border-radius:var(--r-lg);
  padding:56px 24px;text-align:center;
}
.news-empty__icon{
  width:56px;height:56px;border-radius:50%;background:var(--c-primary-l);color:var(--c-primary);
  display:flex;align-items:center;justify-content:center;margin:0 auto 16px;font-size:24px;font-weight:700;
}
.news-empty p{color:var(--c-text-2);font-size:15px;margin-bottom:20px;}

/* ---------- 页脚 ---------- */
.ng-footer{background:var(--c-ink);color:rgba(255,255,255,.78);margin-top:var(--gap);border-radius:24px 24px 0 0;}
.ng-footer__inner{padding:64px 0 32px;}
.ng-footer .ng-logo{color:#fff;}
.ng-footer__desc{font-size:14px;line-height:1.8;color:rgba(255,255,255,.62);margin-top:16px;max-width:300px;}
.ng-footer__title{font-size:15px;font-weight:600;color:#fff;margin-bottom:16px;}
.ng-footer__links{display:flex;flex-direction:column;gap:10px;}
.ng-footer__links a{font-size:14px;color:rgba(255,255,255,.7);transition:color .2s var(--ease);}
.ng-footer__links a:hover{color:var(--c-second);}
.ng-footer__contact{display:flex;flex-direction:column;gap:12px;}
.ng-footer__contact li{display:flex;gap:10px;font-size:14px;color:rgba(255,255,255,.7);align-items:flex-start;}
.ng-footer__ico{width:20px;height:20px;border-radius:6px;background:rgba(255,255,255,.12);display:flex;align-items:center;justify-content:center;font-size:11px;flex:none;margin-top:3px;color:var(--c-second);}
.ng-footer__bottom{
  border-top:1px solid rgba(255,255,255,.1);padding:18px 0;text-align:center;
  font-size:13px;color:var(--c-text-3);
}

/* ---------- 响应式 ---------- */
@media (max-width:1023px){
  :root{--gap:64px;}
  .ng-nav__links{display:none;}
  .ng-nav__actions .ng-btn--ghost{display:none;}
  .ng-burger{display:flex;}
  .ng-hero__title{font-size:34px;}
  .ng-hero__inner{padding:56px 0 64px;}
  .ng-cta{grid-template-columns:1fr;padding:36px;gap:28px;}
  .ng-grid-2x2{grid-template-columns:1fr;}
  .ng-stats{grid-template-columns:repeat(2,1fr);}
  .news-list{grid-template-columns:repeat(2,1fr);}
  .ng-gallery__item--big{grid-column:span 6;}
  .ng-gallery__item--sm{grid-column:span 3;}
}
@media (max-width:639px){
  :root{--gap:52px;}
  body{font-size:16px;}
  .ng-container{padding:0 20px;}
  .ng-nav{height:60px;}
  .ng-logo{font-size:17px;}
  .ng-hero__title{font-size:28px;}
  .ng-hero__sub{font-size:15px;}
  .ng-hero__actions{flex-direction:column;}
  .ng-hero__actions .ng-btn{width:100%;}
  .ng-h2{font-size:22px;}
  .ng-feature{padding:22px;gap:14px;}
  .ng-feature__no{font-size:40px;}
  .ng-gallery{grid-template-columns:1fr;gap:16px;}
  .ng-gallery__item--big,.ng-gallery__item--sm{grid-column:span 1;}
  .ng-stats{grid-template-columns:1fr;gap:14px;}
  .ng-cta{padding:28px;border-radius:24px;}
  .ng-cta__title{font-size:22px;}
  .news-list{grid-template-columns:1fr;}
  .ng-faq .accordion-title{font-size:16px;padding:16px 48px 16px 18px;}
  .ng-countdown__inner{justify-content:flex-start;}
  .ng-countdown .ng-btn{width:100%;}
  .ng-footer__inner{padding:48px 0 24px;}
}

/* roulang page: article */
:root{
  --c-primary:#5B3DF5;
  --c-primary-d:#4527D6;
  --c-primary-l:#EDE9FE;
  --c-second:#17C3B2;
  --c-second-l:#DFF7F4;
  --c-accent:#FFB627;
  --c-danger:#EF4B6B;
  --c-ink:#1B1533;
  --c-text:#2A2540;
  --c-text-2:#6B6584;
  --c-text-3:#9A94AE;
  --c-bg:#F6F5FB;
  --c-card:#FFFFFF;
  --c-line:#E6E2F2;
  --g-brand:linear-gradient(120deg,#5B3DF5 0%,#17C3B2 100%);
  --g-soft:linear-gradient(135deg,#F1EEFF 0%,#E5F7F5 100%);
  --r-lg:24px;
  --r-md:20px;
  --r-sm:14px;
  --r-input:12px;
  --sh-1:0 2px 8px rgba(27,21,51,.06);
  --sh-2:0 14px 36px rgba(91,61,245,.14);
  --sp:88px;
  --ease:cubic-bezier(.2,.7,.3,1);
}
*{box-sizing:border-box;}
html,body{margin:0;padding:0;}
body{
  font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC","Noto Sans SC",system-ui,sans-serif;
  font-size:17px;line-height:1.85;color:var(--c-text);background:var(--c-bg);
  -webkit-font-smoothing:antialiased;overflow-x:hidden;
}
img{max-width:100%;display:block;object-fit:cover;}
a{color:var(--c-primary);text-decoration:none;transition:color .2s var(--ease);}
a:hover{color:var(--c-primary-d);}
button,input{font-family:inherit;}
h1,h2,h3,h4{margin:0;color:var(--c-text);letter-spacing:-.01em;}
p{margin:0 0 16px;}
ul{margin:0;padding:0;list-style:none;}
:focus-visible{outline:2px solid var(--c-primary);outline-offset:2px;border-radius:6px;}
.ng-container{width:100%;max-width:1200px;margin:0 auto;padding:0 20px;}
@media (min-width:1024px){.ng-container{padding:0 24px;}}
.num{font-variant-numeric:tabular-nums;}

/* ---------- 导航 ---------- */
.ng-header{
  position:sticky;top:0;z-index:80;background:rgba(255,255,255,.96);
  border-bottom:1px solid var(--c-line);backdrop-filter:blur(10px);
}
.ng-header.is-scrolled{box-shadow:var(--sh-1);}
.ng-nav{display:flex;align-items:center;gap:24px;height:72px;}
.ng-logo{display:inline-flex;align-items:center;gap:10px;font-weight:700;color:var(--c-text);font-size:17px;}
.ng-logo:hover{color:var(--c-text);}
.ng-logo__mark{
  width:32px;height:32px;border-radius:10px;background:var(--g-brand);color:#fff;
  display:inline-flex;align-items:center;justify-content:center;font-size:15px;font-weight:700;flex:0 0 32px;
}
.ng-logo__text{white-space:nowrap;}
.ng-nav__links{display:flex;align-items:center;gap:6px;margin-left:8px;flex:1;}
.ng-nav__link{
  color:var(--c-text-2);font-size:15px;padding:8px 14px;border-radius:999px;position:relative;
  transition:all .2s var(--ease);
}
.ng-nav__link:hover{color:var(--c-primary);background:var(--c-primary-l);}
.ng-nav__link.is-active{color:var(--c-primary);font-weight:600;background:var(--c-primary-l);}
.ng-nav__actions{display:flex;align-items:center;gap:10px;}
.ng-btn{
  display:inline-flex;align-items:center;justify-content:center;gap:6px;
  height:44px;padding:0 22px;border-radius:var(--r-sm);font-size:15px;font-weight:600;
  border:1px solid transparent;cursor:pointer;transition:all .2s var(--ease);
}
.ng-btn--pill{border-radius:999px;}
.ng-btn--primary{background:var(--g-brand);background-size:160% 100%;color:#fff;box-shadow:0 6px 18px rgba(91,61,245,.22);}
.ng-btn--primary:hover{color:#fff;background-position:100% 0;box-shadow:var(--sh-2);transform:translateY(-1px);}
.ng-btn--ghost{background:#fff;border-color:var(--c-line);color:var(--c-text);}
.ng-btn--ghost:hover{border-color:var(--c-primary);color:var(--c-primary);box-shadow:var(--sh-1);}
.ng-btn--ink{background:var(--c-ink);color:#fff;}
.ng-btn--ink:hover{color:#fff;background:#2a2150;transform:translateY(-1px);}
.ng-btn--text{height:auto;padding:0;background:none;border:0;color:var(--c-primary);font-weight:600;}
.ng-btn--text:hover{color:var(--c-primary-d);text-decoration:underline;}
.ng-burger{
  display:none;width:44px;height:44px;border:1px solid var(--c-line);background:#fff;border-radius:12px;
  flex-direction:column;align-items:center;justify-content:center;gap:4px;cursor:pointer;
}
.ng-burger span{display:block;width:18px;height:2px;background:var(--c-text);border-radius:2px;transition:all .2s var(--ease);}
.ng-burger.is-open span:nth-child(1){transform:translateY(6px) rotate(45deg);}
.ng-burger.is-open span:nth-child(2){opacity:0;}
.ng-burger.is-open span:nth-child(3){transform:translateY(-6px) rotate(-45deg);}

/* ---------- 面包屑 ---------- */
.ng-crumb{font-size:13px;color:var(--c-text-2);padding:22px 0 6px;display:flex;flex-wrap:wrap;gap:6px;align-items:center;}
.ng-crumb a{color:var(--c-text-2);}
.ng-crumb a:hover{color:var(--c-primary);}
.ng-crumb__sep{color:var(--c-text-3);}
.ng-crumb__cur{color:var(--c-text);}

/* ---------- 文章头 ---------- */
.ng-article-head{padding:14px 0 26px;border-bottom:1px solid var(--c-line);}
.ng-article-head__tags{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:16px;}
.ng-tag{
  display:inline-flex;align-items:center;height:28px;padding:0 14px;border-radius:999px;
  background:var(--c-primary-l);color:var(--c-primary);font-size:13px;font-weight:600;
}
.ng-tag:hover{background:var(--c-primary);color:#fff;}
.ng-article-head h1{font-size:40px;line-height:1.25;font-weight:700;margin-bottom:18px;}
.ng-meta{display:flex;flex-wrap:wrap;gap:10px 20px;font-size:13px;color:var(--c-text-2);align-items:center;}
.ng-meta__item{display:inline-flex;align-items:center;gap:6px;}
.ng-meta__dot{width:6px;height:6px;border-radius:50%;background:var(--c-second);}

/* ---------- 文章布局 ---------- */
.ng-main{padding-bottom:var(--sp);}
.ng-article-wrap{padding-top:36px;}
.article-body{
  background:var(--c-card);border:1px solid var(--c-line);border-radius:var(--r-lg);
  padding:36px 32px;box-shadow:var(--sh-1);max-width:820px;
}
.article-body h2{
  font-size:26px;font-weight:700;line-height:1.4;margin:40px 0 18px;padding-left:14px;position:relative;
}
.article-body h2::before{
  content:"";position:absolute;left:0;top:6px;bottom:6px;width:4px;border-radius:4px;background:var(--g-brand);
}
.article-body h2:first-child{margin-top:0;}
.article-body h3{font-size:20px;font-weight:600;margin:28px 0 12px;}
.article-body p{font-size:17px;line-height:1.9;margin-bottom:18px;color:var(--c-text);}
.article-body ul,.article-body ol{margin:0 0 20px;padding-left:22px;}
.article-body ul{list-style:none;padding-left:6px;}
.article-body ul li{position:relative;padding-left:18px;margin-bottom:10px;line-height:1.85;}
.article-body ul li::before{
  content:"";position:absolute;left:0;top:11px;width:7px;height:7px;border-radius:50%;background:var(--c-primary);
}
.article-body ol{list-style:decimal;}
.article-body ol li{margin-bottom:10px;padding-left:4px;}
.article-body ol li::marker{color:var(--c-primary);font-weight:700;}
.article-body blockquote{
  margin:24px 0;padding:18px 22px;background:var(--c-primary-l);border-left:4px solid var(--c-primary);
  border-radius:0 var(--r-sm) var(--r-sm) 0;color:var(--c-text);
}
.article-body blockquote p:last-child{margin-bottom:0;}
.article-body img{border-radius:16px;margin:22px auto;box-shadow:var(--sh-1);}
.article-body figure{margin:24px 0;}
.article-body figcaption{font-size:13px;color:var(--c-text-3);text-align:center;margin-top:10px;}
.article-body a{color:var(--c-primary);font-weight:600;border-bottom:1px solid rgba(91,61,245,.35);}
.article-body a:hover{color:var(--c-primary-d);border-color:var(--c-primary-d);}
.article-body table{
  width:100%;border-collapse:separate;border-spacing:0;margin:22px 0;font-size:15px;
  border:1px solid var(--c-line);border-radius:var(--r-sm);overflow:hidden;
}
.article-body table thead th{background:var(--c-primary-l);color:var(--c-text);font-weight:600;text-align:left;}
.article-body table th,.article-body table td{padding:12px 14px;border-bottom:1px solid var(--c-line);}
.article-body table tr:last-child td{border-bottom:0;}
.article-body code{
  background:#F2F0FA;color:var(--c-primary-d);padding:2px 6px;border-radius:6px;font-size:15px;
}
.article-body hr{border:0;border-top:1px solid var(--c-line);margin:32px 0;}

/* 无内容空态 */
.ng-empty{
  background:var(--c-card);border:1px dashed var(--c-line);border-radius:var(--r-lg);
  padding:64px 28px;text-align:center;box-shadow:var(--sh-1);
}
.ng-empty__ico{
  width:56px;height:56px;border-radius:18px;background:var(--g-soft);color:var(--c-primary);
  display:flex;align-items:center;justify-content:center;font-size:24px;margin:0 auto 18px;
}
.ng-empty h2{font-size:22px;margin-bottom:10px;}
.ng-empty p{color:var(--c-text-2);margin-bottom:22px;}

/* 文末标签 */
.ng-article-foot{margin-top:26px;display:flex;flex-wrap:wrap;gap:10px;align-items:center;}
.ng-article-foot__label{font-size:13px;color:var(--c-text-2);}
.ng-chip{
  display:inline-flex;align-items:center;height:30px;padding:0 14px;border-radius:999px;
  background:#fff;border:1px solid var(--c-line);color:var(--c-text-2);font-size:13px;
  transition:all .2s var(--ease);
}
.ng-chip:hover{border-color:var(--c-primary);color:var(--c-primary);background:var(--c-primary-l);}

/* ---------- 侧栏 ---------- */
.ng-side{position:sticky;top:96px;}
.ng-side__card{
  background:var(--c-card);border:1px solid var(--c-line);border-radius:var(--r-md);
  padding:24px;box-shadow:var(--sh-1);margin-bottom:20px;
}
.ng-side__title{font-size:17px;font-weight:600;margin-bottom:16px;display:flex;align-items:center;gap:8px;}
.ng-side__title::before{
  content:"";width:6px;height:18px;border-radius:4px;background:var(--g-brand);
}
.ng-side__list li{border-bottom:1px solid var(--c-line);}
.ng-side__list li:last-child{border-bottom:0;}
.ng-side__list a{
  display:flex;align-items:center;justify-content:space-between;gap:10px;
  padding:12px 0;color:var(--c-text);font-size:15px;transition:all .2s var(--ease);
}
.ng-side__list a:hover{color:var(--c-primary);padding-left:6px;}
.ng-side__list .arrow{color:var(--c-text-3);font-size:14px;}
.ng-side__cta{
  background:var(--g-brand);border-radius:var(--r-md);padding:26px 24px;color:#fff;
  box-shadow:0 16px 40px rgba(91,61,245,.24);
}
.ng-side__cta h3{color:#fff;font-size:19px;margin-bottom:10px;}
.ng-side__cta p{color:rgba(255,255,255,.88);font-size:14px;line-height:1.7;margin-bottom:18px;}
.ng-side__cta .ng-btn{width:100%;background:#fff;color:var(--c-primary-d);}
.ng-side__cta .ng-btn:hover{background:#F6F5FB;color:var(--c-primary-d);transform:translateY(-1px);}

/* ---------- 相关推荐 ---------- */
.ng-related{padding-top:64px;}
.ng-sec-head{display:flex;align-items:flex-end;justify-content:space-between;gap:16px;margin-bottom:24px;flex-wrap:wrap;}
.ng-sec-head h2{font-size:28px;font-weight:700;}
.ng-sec-head p{color:var(--c-text-2);font-size:15px;margin:8px 0 0;}
.ng-card{
  background:var(--c-card);border:1px solid var(--c-line);border-radius:var(--r-md);overflow:hidden;
  box-shadow:var(--sh-1);transition:all .2s var(--ease);height:100%;display:flex;flex-direction:column;
}
.ng-card:hover{transform:translateY(-3px);border-color:var(--c-primary-l);box-shadow:var(--sh-2);}
.ng-card__thumb{position:relative;overflow:hidden;aspect-ratio:16/10;background:var(--g-soft);}
.ng-card__thumb img{width:100%;height:100%;transition:transform .3s var(--ease);}
.ng-card:hover .ng-card__thumb img{transform:scale(1.03);}
.ng-card__badge{
  position:absolute;left:14px;bottom:14px;background:rgba(27,21,51,.62);color:#fff;
  font-size:12px;padding:5px 12px;border-radius:999px;backdrop-filter:blur(6px);
}
.ng-card__body{padding:20px 22px 22px;flex:1;display:flex;flex-direction:column;}
.ng-card__title{font-size:18px;font-weight:600;margin-bottom:10px;}
.ng-card__excerpt{font-size:15px;line-height:1.7;color:var(--c-text-2);margin-bottom:16px;flex:1;}
.ng-card__link{font-size:14px;font-weight:600;color:var(--c-primary);display:inline-flex;align-items:center;gap:6px;}
.ng-gap{margin-bottom:24px;}

/* ---------- 返回条 ---------- */
.ng-backbar{
  margin-top:44px;background:var(--g-soft);border-radius:var(--r-lg);padding:26px 28px;
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:16px;
}
.ng-backbar__text{font-size:16px;color:var(--c-text);}
.ng-backbar__text span{color:var(--c-text-2);font-size:14px;display:block;margin-top:4px;}

/* ---------- 页脚 ---------- */
.ng-footer{background:var(--c-ink);color:rgba(255,255,255,.72);margin-top:var(--sp);border-radius:24px 24px 0 0;padding:64px 0 0;}
.ng-footer .ng-logo{color:#fff;}
.ng-footer__desc{font-size:14px;line-height:1.8;color:rgba(255,255,255,.62);margin-top:16px;max-width:340px;}
.ng-footer__title{font-size:15px;color:#fff;font-weight:600;margin-bottom:16px;}
.ng-footer__links{display:flex;flex-direction:column;gap:10px;}
.ng-footer__links a{color:rgba(255,255,255,.68);font-size:14px;}
.ng-footer__links a:hover{color:#fff;}
.ng-footer__contact li{display:flex;gap:10px;font-size:14px;color:rgba(255,255,255,.68);margin-bottom:12px;align-items:flex-start;}
.ng-footer__ico{
  width:24px;height:24px;border-radius:8px;background:rgba(255,255,255,.1);color:#fff;font-size:12px;
  display:inline-flex;align-items:center;justify-content:center;flex:0 0 24px;margin-top:2px;
}
.ng-footer__bottom{
  border-top:1px solid rgba(255,255,255,.1);margin-top:24px;padding:22px 0;font-size:13px;
  color:var(--c-text-3);text-align:center;
}

/* ---------- 响应式 ---------- */
@media (max-width:1023px){
  :root{--sp:64px;}
  .ng-nav__links{
    position:fixed;top:0;right:0;bottom:0;width:min(320px,86vw);background:#fff;z-index:90;
    flex-direction:column;align-items:stretch;gap:4px;padding:88px 22px 32px;margin:0;
    transform:translateX(100%);transition:transform .28s var(--ease);box-shadow:-20px 0 40px rgba(27,21,51,.14);
    overflow-y:auto;
  }
  .ng-nav__links.is-open{transform:translateX(0);}
  .ng-nav__link{height:48px;display:flex;align-items:center;border-radius:12px;font-size:16px;}
  .ng-burger{display:flex;}
  .ng-article-head h1{font-size:30px;}
  .ng-side{position:static;}
  .article-body{padding:28px 22px;}
  .article-body h2{font-size:22px;}
}
@media (max-width:639px){
  :root{--sp:52px;}
  body{font-size:16px;}
  .ng-nav{height:60px;gap:12px;}
  .ng-logo__text{font-size:15px;}
  .ng-nav__actions .ng-btn--ghost{display:none;}
  .ng-nav__actions .ng-btn{padding:0 16px;font-size:14px;height:40px;}
  .ng-burger{width:40px;height:40px;}
  .ng-crumb{padding-top:16px;}
  .ng-article-head{padding:10px 0 20px;}
  .ng-article-head h1{font-size:25px;line-height:1.35;}
  .ng-article-wrap{padding-top:24px;}
  .ng-article-wrap > .cell{margin-bottom:20px;}
  .ng-article-wrap > .cell:last-child{margin-bottom:0;}
  .article-body{padding:22px 18px;border-radius:var(--r-md);}
  .article-body h2{font-size:20px;margin-top:32px;}
  .article-body h3{font-size:18px;}
  .article-body p,.article-body li{font-size:16px;}
  .article-body table{font-size:14px;}
  .ng-sec-head h2{font-size:22px;}
  .ng-backbar{padding:22px 20px;flex-direction:column;align-items:stretch;text-align:center;}
  .ng-backbar .ng-btn{width:100%;}
  .ng-footer{padding-top:48px;border-radius:18px 18px 0 0;}
  .grid-margin-x > .cell{margin-bottom:0;}
}

/* roulang page: category1 */
:root{
  --c-primary:#5B3DF5;
  --c-primary-d:#4527D6;
  --c-primary-l:#EDE9FE;
  --c-second:#17C3B2;
  --c-second-l:#DFF7F4;
  --c-accent:#FFB627;
  --c-danger:#EF4B6B;
  --c-ink:#1B1533;
  --c-text:#2A2540;
  --c-text-2:#6B6584;
  --c-text-3:#9A94AE;
  --c-bg:#F6F5FB;
  --c-card:#FFFFFF;
  --c-line:#E6E2F2;
  --g-brand:linear-gradient(120deg,#5B3DF5 0%,#17C3B2 100%);
  --g-soft:linear-gradient(135deg,#F1EEFF 0%,#E5F7F5 100%);
  --r-lg:24px;
  --r-md:20px;
  --r-sm:16px;
  --r-btn:14px;
  --r-input:12px;
  --sh-1:0 2px 8px rgba(27,21,51,.06);
  --sh-2:0 14px 36px rgba(91,61,245,.14);
  --ease:cubic-bezier(.2,.7,.3,1);
  --sp:88px;
}
*{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC","Noto Sans SC",system-ui,sans-serif;
  font-size:17px;
  line-height:1.85;
  color:var(--c-text);
  background:var(--c-bg);
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
h1,h2,h3,h4{margin:0;font-weight:700;color:var(--c-text);letter-spacing:-0.01em;}
p{margin:0 0 16px;}
p:last-child{margin-bottom:0;}
a{color:var(--c-primary);text-decoration:none;transition:color .2s var(--ease),background .2s var(--ease),border-color .2s var(--ease),box-shadow .2s var(--ease),transform .2s var(--ease);}
a:hover{color:var(--c-primary-d);}
img{max-width:100%;display:block;object-fit:cover;}
ul{margin:0;padding:0;list-style:none;}
button{font-family:inherit;cursor:pointer;}
:focus-visible{outline:2px solid var(--c-primary);outline-offset:2px;border-radius:6px;}
.ng-container{width:100%;max-width:1200px;margin:0 auto;padding:0 20px;}
.ng-num{font-variant-numeric:tabular-nums;}

/* ---------- 顶部导航 ---------- */
.ng-header{
  position:sticky;top:0;z-index:60;
  background:rgba(255,255,255,.92);
  backdrop-filter:saturate(160%) blur(10px);
  border-bottom:1px solid transparent;
  transition:box-shadow .25s var(--ease),background .25s var(--ease),border-color .25s var(--ease);
}
.ng-header.is-scrolled{background:rgba(255,255,255,.96);border-bottom-color:var(--c-line);box-shadow:0 6px 20px rgba(27,21,51,.06);}
.ng-nav{display:flex;align-items:center;justify-content:space-between;gap:18px;height:72px;}
.ng-logo{display:inline-flex;align-items:center;gap:10px;color:var(--c-text);font-weight:700;}
.ng-logo:hover{color:var(--c-text);}
.ng-logo__mark{
  width:32px;height:32px;border-radius:10px;background:var(--g-brand);
  color:#fff;font-size:15px;font-weight:700;display:inline-flex;align-items:center;justify-content:center;
  box-shadow:0 6px 14px rgba(91,61,245,.28);
}
.ng-logo__text{font-size:18px;letter-spacing:-0.01em;}
.ng-nav__links{display:flex;align-items:center;gap:6px;}
.ng-nav__link{
  position:relative;display:inline-flex;align-items:center;height:40px;padding:0 14px;
  border-radius:999px;color:var(--c-text);font-size:15.5px;font-weight:500;
}
.ng-nav__link:hover{background:var(--c-primary-l);color:var(--c-primary-d);}
.ng-nav__link.is-active{color:var(--c-primary);font-weight:700;background:var(--c-primary-l);}
.ng-nav__link.is-active::after{
  content:"";position:absolute;left:50%;bottom:5px;transform:translateX(-50%);
  width:16px;height:3px;border-radius:999px;background:var(--g-brand);
}
.ng-nav__actions{display:flex;align-items:center;gap:10px;}
.ng-btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:46px;padding:0 22px;border:1px solid transparent;border-radius:var(--r-btn);
  font-size:15.5px;font-weight:600;line-height:1;white-space:nowrap;
  transition:all .2s var(--ease);
}
.ng-btn--pill{border-radius:999px;}
.ng-btn--primary{background:var(--g-brand);color:#fff;box-shadow:0 8px 20px rgba(91,61,245,.24);}
.ng-btn--primary:hover{color:#fff;transform:translateY(-2px);box-shadow:0 14px 30px rgba(91,61,245,.32);}
.ng-btn--ghost{background:rgba(255,255,255,.9);color:var(--c-primary);border-color:#D9D2F8;}
.ng-btn--ghost:hover{background:var(--c-primary-l);color:var(--c-primary-d);border-color:var(--c-primary);}
.ng-btn--ink{background:var(--c-ink);color:#fff;}
.ng-btn--ink:hover{color:#fff;transform:translateY(-2px);box-shadow:0 12px 26px rgba(27,21,51,.28);}
.ng-btn--white{background:#fff;color:var(--c-primary-d);box-shadow:0 10px 24px rgba(27,21,51,.16);}
.ng-btn--white:hover{color:var(--c-primary-d);transform:translateY(-2px);}
.ng-burger{display:none;width:44px;height:44px;border:1px solid var(--c-line);border-radius:12px;background:#fff;flex-direction:column;align-items:center;justify-content:center;gap:5px;}
.ng-burger span{display:block;width:18px;height:2px;border-radius:2px;background:var(--c-text);transition:transform .2s var(--ease),opacity .2s var(--ease);}
.ng-burger[aria-expanded="true"] span:nth-child(1){transform:translateY(7px) rotate(45deg);}
.ng-burger[aria-expanded="true"] span:nth-child(2){opacity:0;}
.ng-burger[aria-expanded="true"] span:nth-child(3){transform:translateY(-7px) rotate(-45deg);}

/* ---------- 通用区块 ---------- */
.ng-section{padding:var(--sp) 0;}
.ng-section--tight{padding:56px 0;}
.ng-section--soft{background:var(--g-soft);}
.ng-section--white{background:#fff;}
.ng-eyebrow{
  display:inline-flex;align-items:center;gap:8px;height:30px;padding:0 14px;border-radius:999px;
  background:var(--c-primary-l);color:var(--c-primary-d);font-size:13px;font-weight:600;margin-bottom:16px;
}
.ng-h2{font-size:30px;line-height:1.3;}
.ng-lead{color:var(--c-text-2);font-size:16.5px;max-width:720px;}
.ng-sec-head{margin-bottom:36px;}
.ng-sec-head--center{text-align:center;}
.ng-sec-head--center .ng-lead{margin:0 auto;}

/* ---------- 面包屑 ---------- */
.ng-crumb{font-size:13px;color:var(--c-text-3);display:flex;align-items:center;gap:8px;flex-wrap:wrap;margin-bottom:20px;}
.ng-crumb a{color:var(--c-text-2);}
.ng-crumb a:hover{color:var(--c-primary);}
.ng-crumb span.sep{color:#CFC8E4;}
.ng-crumb .now{color:var(--c-primary);font-weight:600;}

/* ---------- 分类小 Hero ---------- */
.ng-chero{background:var(--g-soft);padding:44px 0 56px;position:relative;overflow:hidden;}
.ng-chero::after{
  content:"";position:absolute;inset:0;pointer-events:none;opacity:.05;
  background-image:linear-gradient(var(--c-ink) 1px,transparent 1px),linear-gradient(90deg,var(--c-ink) 1px,transparent 1px);
  background-size:48px 48px;
}
.ng-chero__grid{position:relative;z-index:1;}
.ng-chero h1{font-size:44px;line-height:1.25;margin-bottom:16px;}
.ng-chero__sub{font-size:17px;color:var(--c-text-2);max-width:640px;}
.ng-chero__btns{display:flex;flex-wrap:wrap;gap:12px;margin-top:26px;}
.ng-chero__media{
  border-radius:var(--r-lg);overflow:hidden;box-shadow:var(--sh-2);background:#fff;
  border:6px solid #fff;
}
.ng-chero__media img{width:100%;height:300px;border-radius:18px;transition:transform .3s var(--ease);}
.ng-chero__media:hover img{transform:scale(1.03);}
.ng-chero__meta{display:flex;flex-wrap:wrap;gap:10px;margin-top:22px;}
.ng-chip{
  display:inline-flex;align-items:center;gap:6px;height:30px;padding:0 13px;border-radius:999px;
  background:#fff;border:1px solid var(--c-line);color:var(--c-text-2);font-size:13px;font-weight:500;
}
.ng-chip i{color:var(--c-second);font-size:12px;}

/* ---------- 锚点导航条 ---------- */
.ng-anchors{
  position:sticky;top:72px;z-index:40;background:rgba(255,255,255,.94);
  backdrop-filter:blur(10px);border-bottom:1px solid var(--c-line);
}
.ng-anchors__inner{display:flex;gap:10px;align-items:center;padding:12px 0;overflow-x:auto;scroll-snap-type:x mandatory;}
.ng-anchors__inner::-webkit-scrollbar{height:0;}
.ng-anchor{
  flex:0 0 auto;scroll-snap-align:start;
  display:inline-flex;align-items:center;height:38px;padding:0 16px;border-radius:999px;
  background:var(--c-bg);border:1px solid var(--c-line);color:var(--c-text-2);
  font-size:14px;font-weight:600;
}
.ng-anchor i{margin-right:6px;font-size:12px;color:var(--c-primary);}
.ng-anchor:hover{background:var(--c-primary-l);border-color:#D9D2F8;color:var(--c-primary-d);}

/* ---------- 图文交替区块 ---------- */
.ng-feature{padding:64px 0;border-bottom:1px solid var(--c-line);}
.ng-feature:last-of-type{border-bottom:none;}
.ng-feature__no{
  font-size:13px;font-weight:700;color:var(--c-primary);letter-spacing:.06em;
  display:block;margin-bottom:10px;font-variant-numeric:tabular-nums;
}
.ng-feature h2{font-size:30px;margin-bottom:14px;}
.ng-feature p{color:var(--c-text-2);font-size:16.5px;}
.ng-checks{margin-top:20px;display:grid;gap:12px;}
.ng-checks li{display:flex;gap:10px;align-items:flex-start;font-size:15.5px;color:var(--c-text);}
.ng-checks i{color:var(--c-second);margin-top:6px;font-size:14px;flex:0 0 auto;}
.ng-figure{position:relative;border-radius:var(--r-md);overflow:hidden;box-shadow:var(--sh-1);background:#fff;}
.ng-figure img{width:100%;height:320px;transition:transform .3s var(--ease);}
.ng-figure:hover img{transform:scale(1.03);}
.ng-figure__tag{
  position:absolute;left:14px;bottom:14px;height:30px;padding:0 13px;border-radius:999px;
  background:rgba(27,21,51,.62);color:#fff;font-size:13px;display:inline-flex;align-items:center;backdrop-filter:blur(4px);
}
.ng-mini-badges{display:flex;flex-wrap:wrap;gap:10px;margin-top:20px;}
.ng-mini{
  display:inline-flex;align-items:center;gap:8px;height:36px;padding:0 14px;border-radius:999px;
  background:#fff;border:1px solid var(--c-line);font-size:13.5px;color:var(--c-text-2);box-shadow:var(--sh-1);
}
.ng-mini b{color:var(--c-primary-d);font-size:15px;font-variant-numeric:tabular-nums;}

/* ---------- 数据徽章条 ---------- */
.ng-stats{background:#fff;border-top:1px solid var(--c-line);border-bottom:1px solid var(--c-line);}
.ng-stat{
  background:var(--c-bg);border:1px solid var(--c-line);border-radius:var(--r-sm);
  padding:22px 20px;text-align:center;transition:all .2s var(--ease);height:100%;
}
.ng-stat:hover{transform:translateY(-3px);border-color:#D9D2F8;box-shadow:var(--sh-2);background:#fff;}
.ng-stat__num{font-size:28px;font-weight:700;color:var(--c-primary);line-height:1.2;font-variant-numeric:tabular-nums;}
.ng-stat__num em{font-style:normal;font-size:15px;color:var(--c-text-2);font-weight:600;margin-left:3px;}
.ng-stat__label{font-size:13.5px;color:var(--c-text-2);margin-top:6px;}

/* ---------- FAQ ---------- */
.ng-faq .accordion{border:none;background:transparent;margin:0;}
.ng-faq .accordion-item{
  position:relative;background:#fff;border:1px solid var(--c-line);border-radius:var(--r-sm);
  margin-bottom:12px;overflow:hidden;transition:all .2s var(--ease);
}
.ng-faq .accordion-item:hover{border-color:#D9D2F8;box-shadow:var(--sh-1);}
.ng-faq .accordion-item.is-active{border-color:#D9D2F8;box-shadow:var(--sh-1);}
.ng-faq .accordion-item.is-active::before{
  content:"";position:absolute;left:0;top:12px;bottom:12px;width:4px;border-radius:0 4px 4px 0;background:var(--g-brand);
}
.ng-faq .accordion-title{
  border:none;background:transparent;padding:20px 56px 20px 24px;
  font-size:17px;font-weight:600;color:var(--c-text);position:relative;line-height:1.6;
}
.ng-faq .accordion-title:hover{background:transparent;color:var(--c-primary-d);}
.ng-faq .accordion-title::before{
  content:"+";position:absolute;right:22px;top:50%;transform:translateY(-50%);
  font-size:22px;font-weight:500;color:var(--c-primary);transition:transform .2s var(--ease);
}
.ng-faq .accordion-item.is-active .accordion-title{color:var(--c-primary);}
.ng-faq .accordion-item.is-active .accordion-title::before{content:"−";}
.ng-faq .accordion-content{
  border:none;background:transparent;padding:0 24px 20px 24px;
  color:var(--c-text-2);font-size:15px;line-height:1.8;
}

/* ---------- CTA ---------- */
.ng-cta{padding:var(--sp) 0;}
.ng-cta__card{
  position:relative;overflow:hidden;border-radius:28px;background:var(--g-brand);
  padding:48px;color:#fff;box-shadow:0 24px 60px rgba(91,61,245,.26);
}
.ng-cta__card::after{
  content:"";position:absolute;right:-60px;top:-60px;width:280px;height:280px;border-radius:50%;
  background:rgba(255,255,255,.12);
}
.ng-cta__card h2{color:#fff;font-size:30px;margin-bottom:14px;position:relative;z-index:1;}
.ng-cta__card p{color:rgba(255,255,255,.9);position:relative;z-index:1;max-width:620px;}
.ng-cta__btns{display:flex;flex-wrap:wrap;gap:12px;margin-top:26px;position:relative;z-index:1;}
.ng-cta__side{position:relative;z-index:1;display:grid;gap:12px;}
.ng-cta__aside{
  background:rgba(255,255,255,.14);border:1px solid rgba(255,255,255,.28);
  border-radius:var(--r-sm);padding:18px 20px;backdrop-filter:blur(4px);
}
.ng-cta__aside b{display:block;font-size:24px;font-variant-numeric:tabular-nums;color:#fff;}
.ng-cta__aside span{font-size:13.5px;color:rgba(255,255,255,.86);}

/* ---------- 页脚 ---------- */
.ng-footer{background:var(--c-ink);color:#C9C3E0;margin-top:0;border-radius:24px 24px 0 0;padding-top:60px;}
.ng-footer .ng-logo__text{color:#fff;}
.ng-footer__desc{font-size:14.5px;line-height:1.85;color:#A9A2C6;margin-top:16px;max-width:340px;}
.ng-footer__title{font-size:15px;color:#fff;margin-bottom:16px;font-weight:600;}
.ng-footer__links{display:flex;flex-direction:column;gap:10px;}
.ng-footer__links a{color:#B7B0D4;font-size:14.5px;}
.ng-footer__links a:hover{color:#fff;}
.ng-footer__contact{display:flex;flex-direction:column;gap:12px;}
.ng-footer__contact li{display:flex;gap:10px;align-items:flex-start;font-size:14.5px;color:#B7B0D4;}
.ng-footer__ico{
  flex:0 0 auto;width:26px;height:26px;border-radius:8px;background:rgba(255,255,255,.1);
  color:#fff;font-size:12px;display:inline-flex;align-items:center;justify-content:center;
}
.ng-footer__bottom{
  border-top:1px solid rgba(255,255,255,.1);margin-top:12px;padding:20px 0 26px;
  font-size:13px;color:#8C86A8;text-align:center;
}

/* ---------- 响应式 ---------- */
@media (max-width:1199px){
  .ng-h2{font-size:27px;}
  .ng-chero h1{font-size:38px;}
}
@media (max-width:1023px){
  :root{--sp:64px;}
  .ng-nav__links{display:none;}
  .ng-burger{display:inline-flex;}
  .ng-nav__actions .ng-btn--ghost{display:none;}
  .ng-nav__links.is-open{
    display:flex;flex-direction:column;align-items:stretch;gap:4px;
    position:fixed;left:0;right:0;top:72px;background:#fff;padding:14px 20px 24px;
    border-bottom:1px solid var(--c-line);box-shadow:0 20px 40px rgba(27,21,51,.12);
    max-height:calc(100vh - 72px);overflow-y:auto;
  }
  .ng-nav__links.is-open .ng-nav__link{height:48px;border-radius:12px;font-size:16px;}
  .ng-nav__links.is-open .ng-nav__link.is-active::after{display:none;}
  .ng-figure img{height:280px;}
}
@media (max-width:767px){
  body{font-size:16px;}
  :root{--sp:52px;}
  .ng-nav{height:60px;}
  .ng-header.is-scrolled .ng-nav{height:60px;}
  .ng-logo__text{font-size:16px;}
  .ng-nav__links.is-open{top:60px;max-height:calc(100vh - 60px);}
  .ng-nav__actions .ng-btn--pill{height:40px;padding:0 16px;font-size:14px;}
  .ng-chero{padding:28px 0 40px;}
  .ng-chero h1{font-size:28px;}
  .ng-chero__media img{height:220px;margin-top:24px;}
  .ng-chero__btns .ng-btn{width:100%;}
  .ng-anchors{top:60px;}
  .ng-h2{font-size:22px;}
  .ng-feature h2{font-size:22px;}
  .ng-feature{padding:44px 0;}
  .ng-figure img{height:220px;}
  .ng-cta__card{padding:28px;}
  .ng-cta__card h2{font-size:22px;}
  .ng-cta__btns .ng-btn{width:100%;}
  .ng-stat{padding:18px 16px;}
  .ng-footer{border-radius:18px 18px 0 0;padding-top:44px;}
  .ng-faq .accordion-title{font-size:16px;padding:18px 48px 18px 18px;}
  .ng-faq .accordion-content{padding:0 18px 18px 18px;}
}
@media (max-width:519px){
  .ng-chero h1{font-size:26px;}
  .ng-logo__text{font-size:15px;}
  .ng-logo__mark{width:28px;height:28px;font-size:13px;}
}

/* roulang page: category2 */
:root{
  --c-primary:#5B3DF5;
  --c-primary-d:#4527D6;
  --c-primary-l:#EDE9FE;
  --c-second:#17C3B2;
  --c-second-l:#DFF7F4;
  --c-accent:#FFB627;
  --c-danger:#EF4B6B;
  --c-ink:#1B1533;
  --c-text:#2A2540;
  --c-text-2:#6B6584;
  --c-text-3:#9A94AE;
  --c-bg:#F6F5FB;
  --c-card:#FFFFFF;
  --c-line:#E6E2F2;
  --g-brand:linear-gradient(120deg,#5B3DF5 0%,#17C3B2 100%);
  --g-soft:linear-gradient(135deg,#F1EEFF 0%,#E5F7F5 100%);
  --r-lg:24px;
  --r-md:20px;
  --r-sm:14px;
  --r-xs:12px;
  --sh-1:0 2px 8px rgba(27,21,51,.06);
  --sh-2:0 14px 36px rgba(91,61,245,.14);
  --ease:cubic-bezier(.2,.7,.3,1);
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  background:var(--c-bg);
  color:var(--c-text);
  font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC","Noto Sans SC",system-ui,sans-serif;
  font-size:17px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;display:block;object-fit:cover}
a{color:inherit;text-decoration:none}
button,input{font:inherit;color:inherit}
h1,h2,h3,h4,p{margin:0}
ul{margin:0;padding:0;list-style:none}
figure{margin:0}
:focus-visible{outline:2px solid var(--c-primary);outline-offset:2px;border-radius:6px}
.ng-container{width:100%;max-width:1240px;margin:0 auto;padding:0 24px}
.ng-row{margin-bottom:-24px}
.ng-col{margin-bottom:24px}
.ng-section{padding:88px 0}
.ng-section--soft{background:#fff}
.ng-sec-head{max-width:760px;margin-bottom:36px}
.ng-sec-head h2{font-size:30px;line-height:1.35;font-weight:700;color:var(--c-ink);margin-bottom:12px;letter-spacing:-.01em}
.ng-sec-head p{font-size:16px;color:var(--c-text-2);line-height:1.85}
.ng-eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:13px;font-weight:600;color:var(--c-primary-d);background:var(--c-primary-l);border-radius:999px;padding:6px 14px;margin-bottom:14px}
.ng-eyebrow i{font-size:12px}

/* 顶部导航 */
.ng-header{position:sticky;top:0;z-index:60;background:rgba(255,255,255,.96);backdrop-filter:blur(10px);border-bottom:1px solid transparent;transition:border-color .2s var(--ease),box-shadow .2s var(--ease)}
.ng-header.is-scrolled{border-bottom-color:var(--c-line);box-shadow:0 4px 18px rgba(27,21,51,.06)}
.ng-nav{display:flex;align-items:center;gap:20px;height:72px}
.ng-logo{display:inline-flex;align-items:center;gap:10px;font-weight:700;font-size:18px;color:var(--c-ink);letter-spacing:-.01em}
.ng-logo__mark{width:32px;height:32px;border-radius:10px;background:var(--g-brand);color:#fff;display:grid;place-items:center;font-size:16px;font-weight:700;box-shadow:0 6px 16px rgba(91,61,245,.28);flex:0 0 auto}
.ng-logo__text{white-space:nowrap}
.ng-nav__links{display:flex;align-items:center;gap:4px;margin:0 auto}
.ng-nav__link{position:relative;padding:10px 14px;border-radius:999px;font-size:15px;font-weight:500;color:var(--c-text-2);transition:background .2s var(--ease),color .2s var(--ease)}
.ng-nav__link:hover{background:var(--c-primary-l);color:var(--c-primary-d)}
.ng-nav__link.is-active{color:var(--c-primary-d);background:var(--c-primary-l);font-weight:600}
.ng-nav__link.is-active::after{content:"";position:absolute;left:50%;bottom:2px;transform:translateX(-50%);width:4px;height:4px;border-radius:50%;background:var(--c-primary)}
.ng-nav__actions{display:flex;align-items:center;gap:10px}
.ng-nav__cta{display:none}
.ng-burger{display:none;flex-direction:column;justify-content:center;gap:5px;width:44px;height:44px;border:1px solid var(--c-line);border-radius:12px;background:#fff;cursor:pointer;padding:0 11px}
.ng-burger span{display:block;height:2px;border-radius:2px;background:var(--c-ink);transition:transform .2s var(--ease),opacity .2s var(--ease)}
.ng-burger[aria-expanded="true"] span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.ng-burger[aria-expanded="true"] span:nth-child(2){opacity:0}
.ng-burger[aria-expanded="true"] span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}

/* 按钮 */
.ng-btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;height:44px;padding:0 22px;border-radius:var(--r-sm);font-size:15px;font-weight:600;border:1px solid transparent;cursor:pointer;transition:transform .2s var(--ease),box-shadow .2s var(--ease),background .2s var(--ease),border-color .2s var(--ease),color .2s var(--ease);white-space:nowrap}
.ng-btn--pill{border-radius:999px}
.ng-btn--primary{background-image:var(--g-brand);background-size:170% 100%;background-position:0 0;color:#fff;box-shadow:0 8px 20px rgba(91,61,245,.24)}
.ng-btn--primary:hover{background-position:100% 0;box-shadow:0 14px 30px rgba(91,61,245,.3);transform:translateY(-1px)}
.ng-btn--ghost{background:#fff;border-color:var(--c-line);color:var(--c-primary-d)}
.ng-btn--ghost:hover{border-color:var(--c-primary);background:var(--c-primary-l)}
.ng-btn--light{background:#fff;color:var(--c-primary-d);box-shadow:0 10px 26px rgba(27,21,51,.16)}
.ng-btn--light:hover{transform:translateY(-1px);box-shadow:0 16px 34px rgba(27,21,51,.22)}
.ng-btn--outline-light{background:rgba(255,255,255,.12);border-color:rgba(255,255,255,.6);color:#fff}
.ng-btn--outline-light:hover{background:rgba(255,255,255,.22)}
.ng-btn--ink{background:var(--c-ink);color:#fff}
.ng-btn--ink:hover{background:#2b2350;transform:translateY(-1px)}
.ng-btn:active{transform:translateY(0)}

/* 面包屑 */
.ng-crumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--c-text-2);margin-bottom:20px}
.ng-crumb a{color:var(--c-text-2);transition:color .2s var(--ease)}
.ng-crumb a:hover{color:var(--c-primary)}
.ng-crumb i{font-size:9px;color:var(--c-text-3)}
.ng-crumb [aria-current="page"]{color:var(--c-text);font-weight:600}

/* Hero */
.ng-hero{position:relative;background:var(--g-soft);padding:52px 0 88px;overflow:hidden}
.ng-hero::before{content:"";position:absolute;inset:0;background-image:repeating-linear-gradient(0deg,rgba(91,61,245,.5) 0 1px,transparent 1px 56px),repeating-linear-gradient(90deg,rgba(91,61,245,.5) 0 1px,transparent 1px 56px);opacity:.05;pointer-events:none}
.ng-hero>.ng-container{position:relative;z-index:1}
.ng-hero__tag{display:inline-flex;align-items:center;gap:8px;background:rgba(255,255,255,.8);border:1px solid var(--c-line);color:var(--c-primary-d);font-size:13px;font-weight:600;border-radius:999px;padding:7px 16px;margin-bottom:18px}
.ng-hero h1{font-size:44px;line-height:1.25;font-weight:700;letter-spacing:-.01em;color:var(--c-ink);margin-bottom:18px}
.ng-hero__lead{font-size:17px;line-height:1.85;color:var(--c-text-2);max-width:620px;margin-bottom:28px}
.ng-hero__actions{display:flex;flex-wrap:wrap;gap:12px;margin-bottom:30px}
.ng-hero__media{position:relative;border-radius:var(--r-lg);overflow:hidden;box-shadow:0 22px 50px rgba(91,61,245,.18);border:1px solid rgba(255,255,255,.7)}
.ng-hero__media img{width:100%;aspect-ratio:4/3;transform:scale(1);transition:transform .4s var(--ease)}
.ng-hero__media:hover img{transform:scale(1.03)}
.ng-hero__badge{position:absolute;left:16px;bottom:16px;background:rgba(255,255,255,.92);border-radius:999px;padding:8px 16px;font-size:13px;font-weight:600;color:var(--c-primary-d);backdrop-filter:blur(6px)}
.ng-mini-stats{display:flex;flex-wrap:wrap;gap:12px}
.ng-mini{display:inline-flex;align-items:baseline;gap:6px;background:rgba(255,255,255,.86);border:1px solid var(--c-line);border-radius:999px;padding:8px 16px;font-size:13px;color:var(--c-text-2)}
.ng-mini b{font-size:18px;font-weight:700;color:var(--c-primary);font-variant-numeric:tabular-nums}

/* 数据徽章条 */
.ng-stats{padding:0 0 0}
.ng-stat{background:var(--c-card);border:1px solid var(--c-line);border-radius:var(--r-md);padding:22px;box-shadow:var(--sh-1);height:100%;transition:transform .2s var(--ease),box-shadow .2s var(--ease),border-color .2s var(--ease)}
.ng-stat:hover{transform:translateY(-3px);box-shadow:var(--sh-2);border-color:var(--c-primary-l)}
.ng-stat__num{font-size:28px;font-weight:700;color:var(--c-primary);font-variant-numeric:tabular-nums;line-height:1.2}
.ng-stat__num small{font-size:14px;font-weight:600;color:var(--c-text-2);margin-left:4px}
.ng-stat__label{font-size:13px;color:var(--c-text-2);margin-top:6px}

/* 卡片 */
.ng-card{background:var(--c-card);border:1px solid var(--c-line);border-radius:var(--r-md);padding:26px;box-shadow:var(--sh-1);height:100%;transition:transform .2s var(--ease),box-shadow .2s var(--ease),border-color .2s var(--ease)}
.ng-card:hover{transform:translateY(-3px);box-shadow:var(--sh-2);border-color:var(--c-primary-l)}
.ng-card__no{font-size:44px;font-weight:700;line-height:1;color:rgba(91,61,245,.22);font-variant-numeric:tabular-nums;margin-bottom:14px}
.ng-card h3{font-size:20px;font-weight:600;color:var(--c-ink);margin-bottom:10px}
.ng-card p{font-size:15px;line-height:1.7;color:var(--c-text-2)}
.ng-card__foot{display:flex;flex-wrap:wrap;gap:8px;margin-top:18px}
.ng-chip{display:inline-flex;align-items:center;gap:6px;background:var(--c-primary-l);color:var(--c-primary-d);font-size:13px;font-weight:600;border-radius:999px;padding:5px 13px}
.ng-chip--second{background:var(--c-second-l);color:#0E8C80}
.ng-chip--accent{background:#FFF3DA;color:#9A6400}

/* 时间轴 */
.ng-layout{display:flex;gap:0}
.ng-toc{position:sticky;top:96px;background:var(--c-card);border:1px solid var(--c-line);border-radius:var(--r-md);padding:22px;box-shadow:var(--sh-1)}
.ng-toc__title{font-size:13px;font-weight:600;color:var(--c-text-3);margin-bottom:12px}
.ng-toc__link{display:flex;align-items:center;gap:10px;padding:10px 12px;border-radius:var(--r-xs);font-size:15px;color:var(--c-text-2);transition:background .2s var(--ease),color .2s var(--ease)}
.ng-toc__link span{font-variant-numeric:tabular-nums;font-size:13px;color:var(--c-text-3)}
.ng-toc__link:hover{background:var(--c-bg);color:var(--c-primary-d)}
.ng-toc__link.is-current{background:var(--c-primary-l);color:var(--c-primary-d);font-weight:600}
.ng-toc__link.is-current span{color:var(--c-primary)}

.ng-timeline{position:relative;padding:6px 0}
.ng-timeline::before{content:"";position:absolute;left:50%;top:12px;bottom:12px;width:2px;transform:translateX(-1px);background:repeating-linear-gradient(to bottom,var(--c-primary-l) 0 8px,transparent 8px 16px)}
.ng-step{position:relative;display:grid;grid-template-columns:1fr 1fr;column-gap:76px;margin-bottom:22px}
.ng-step:last-child{margin-bottom:0}
.ng-step__card{background:var(--c-card);border:1px solid var(--c-line);border-radius:var(--r-md);padding:24px;box-shadow:var(--sh-1);transition:transform .2s var(--ease),box-shadow .2s var(--ease),border-color .2s var(--ease)}
.ng-step__card:hover{transform:translateY(-3px);box-shadow:var(--sh-2);border-color:var(--c-primary-l)}
.ng-step:nth-child(odd) .ng-step__card{grid-column:1}
.ng-step:nth-child(even) .ng-step__card{grid-column:2}
.ng-step__card h3{font-size:18px;font-weight:600;color:var(--c-ink);margin-bottom:8px}
.ng-step__card p{font-size:15px;line-height:1.7;color:var(--c-text-2)}
.ng-step__dot{position:absolute;left:50%;top:24px;transform:translateX(-50%);width:46px;height:46px;border-radius:50%;display:grid;place-items:center;font-size:15px;font-weight:700;color:var(--c-primary-d);font-variant-numeric:tabular-nums;background-image:linear-gradient(#fff,#fff),var(--g-brand);background-origin:border-box;background-clip:padding-box,border-box;border:2px solid transparent;z-index:2}
.ng-step__tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:14px}

/* 参数对照卡表 */
.ng-tablecard{background:var(--c-card);border:1px solid var(--c-line);border-radius:var(--r-lg);overflow:hidden;box-shadow:var(--sh-1)}
.ng-tablecard__head,.ng-tablecard__row{display:grid;grid-template-columns:1.05fr .8fr 1fr .8fr 1.5fr;gap:14px;align-items:center;padding:16px 24px}
.ng-tablecard__head{background:var(--c-primary-l);font-size:13px;font-weight:600;color:var(--c-primary-d)}
.ng-tablecard__row{border-top:1px solid var(--c-line);font-size:15px;color:var(--c-text);transition:background .2s var(--ease)}
.ng-tablecard__row:hover{background:#FBFAFF}
.ng-tablecard__name{font-weight:600;color:var(--c-ink);display:flex;align-items:center;gap:10px}
.ng-dot{width:8px;height:8px;border-radius:50%;background:var(--g-brand);flex:0 0 auto}
.ng-tablecard__cell{color:var(--c-text-2)}
.ng-level{display:inline-flex;align-items:center;font-size:13px;font-weight:600;border-radius:999px;padding:4px 12px;background:var(--c-second-l);color:#0E8C80}
.ng-level--mid{background:#FFF3DA;color:#9A6400}
.ng-table-note{font-size:13px;color:var(--c-text-3);margin-top:16px}

/* FAQ */
.ng-faq .accordion{background:transparent;border:0;margin:0}
.ng-faq .accordion-item{position:relative;background:var(--c-card);border:1px solid var(--c-line);border-radius:16px;margin-bottom:12px;overflow:hidden;box-shadow:var(--sh-1);transition:border-color .2s var(--ease),box-shadow .2s var(--ease)}
.ng-faq .accordion-item:hover{border-color:var(--c-primary-l)}
.ng-faq .accordion-item.is-active{border-color:var(--c-primary-l);box-shadow:var(--sh-2)}
.ng-faq .accordion-item.is-active::before{content:"";position:absolute;left:0;top:0;bottom:0;width:4px;background:var(--g-brand)}
.ng-faq .accordion-title{border:0;padding:20px 58px 20px 24px;font-size:17px;font-weight:600;color:var(--c-text);position:relative;line-height:1.6;transition:color .2s var(--ease)}
.ng-faq .accordion-title::before{content:"+";position:absolute;right:22px;top:50%;transform:translateY(-50%);font-size:22px;font-weight:400;color:var(--c-primary);line-height:1}
.ng-faq .accordion-item.is-active .accordion-title{color:var(--c-primary-d)}
.ng-faq .accordion-item.is-active .accordion-title::before{content:"−"}
.ng-faq .accordion-content{padding:0 24px 22px;border:0;font-size:15px;line-height:1.8;color:var(--c-text-2);background:transparent}
.ng-faq .accordion-content p{margin:0}

/* CTA */
.ng-cta-wrap{background-image:var(--g-brand);border-radius:28px;padding:48px;color:#fff;position:relative;overflow:hidden}
.ng-cta-wrap::after{content:"";position:absolute;right:-60px;top:-60px;width:260px;height:260px;border-radius:50%;background:rgba(255,255,255,.12)}
.ng-cta-wrap>.grid-x{position:relative;z-index:1}
.ng-cta-wrap h2{font-size:30px;line-height:1.35;font-weight:700;margin-bottom:14px;color:#fff}
.ng-cta-wrap p{font-size:16px;line-height:1.8;color:rgba(255,255,255,.86);margin-bottom:24px}
.ng-form{display:grid;grid-template-columns:1fr 1fr;gap:14px;align-items:end}
.ng-field{display:flex;flex-direction:column;gap:8px}
.ng-field label{font-size:13px;font-weight:600;color:rgba(255,255,255,.92)}
.ng-field input{height:46px;border-radius:var(--r-xs);border:2px solid transparent;background:#fff;color:var(--c-text);padding:0 14px;font-size:15px;transition:border-color .2s var(--ease),box-shadow .2s var(--ease)}
.ng-field input::placeholder{color:var(--c-text-3)}
.ng-field input:focus{outline:none;border-color:var(--c-accent);box-shadow:0 0 0 4px rgba(255,182,39,.25)}
.ng-form__submit{grid-column:1 / -1;display:flex;flex-wrap:wrap;align-items:center;gap:14px}
.ng-form__tip{font-size:13px;color:rgba(255,255,255,.8)}
.ng-form__tip.is-on{color:#fff;font-weight:600}
.ng-cta-side{background:rgba(255,255,255,.14);border:1px solid rgba(255,255,255,.3);border-radius:var(--r-lg);padding:22px;backdrop-filter:blur(6px)}
.ng-cta-side img{width:100%;aspect-ratio:4/3;border-radius:var(--r-sm);margin-bottom:18px}
.ng-cta-list li{display:flex;align-items:center;justify-content:space-between;gap:12px;font-size:14px;color:rgba(255,255,255,.9);padding:10px 0;border-bottom:1px dashed rgba(255,255,255,.28)}
.ng-cta-list li:last-child{border-bottom:0}
.ng-cta-list b{font-size:18px;font-weight:700;font-variant-numeric:tabular-nums;color:#fff}

/* 页脚 */
.ng-footer{background:var(--c-ink);color:#CFC9E4;margin-top:88px;border-radius:24px 24px 0 0;padding:64px 0 0}
.ng-footer .ng-logo{color:#fff;margin-bottom:14px}
.ng-footer__desc{font-size:14px;line-height:1.8;color:#A9A2C4;max-width:360px}
.ng-footer__title{font-size:15px;font-weight:600;color:#fff;margin-bottom:16px}
.ng-footer__links{display:flex;flex-direction:column;gap:10px}
.ng-footer__links a{font-size:14px;color:#A9A2C4;transition:color .2s var(--ease)}
.ng-footer__links a:hover{color:#fff}
.ng-footer__contact li{display:flex;align-items:flex-start;gap:10px;font-size:14px;color:#A9A2C4;margin-bottom:12px}
.ng-footer__ico{width:24px;height:24px;flex:0 0 auto;border-radius:8px;background:rgba(255,255,255,.12);color:#fff;display:grid;place-items:center;font-size:12px}
.ng-footer__bottom{border-top:1px solid rgba(255,255,255,.12);margin-top:24px;padding:20px 0 26px;font-size:13px;color:var(--c-text-3);text-align:center}

/* 响应式 */
@media (max-width:1199px){
  .ng-hero h1{font-size:38px}
}
@media (max-width:1023px){
  .ng-nav{height:64px;gap:12px}
  .ng-nav__links{position:fixed;top:0;right:0;bottom:0;width:min(320px,86vw);background:#fff;flex-direction:column;align-items:stretch;gap:2px;margin:0;padding:88px 20px 130px;transform:translateX(102%);transition:transform .28s var(--ease);box-shadow:-20px 0 60px rgba(27,21,51,.16);z-index:80;overflow-y:auto}
  .ng-nav__links.is-open{transform:translateX(0)}
  .ng-nav__link{display:flex;align-items:center;min-height:48px;padding:0 14px;border-radius:var(--r-xs);font-size:16px}
  .ng-nav__link.is-active::after{display:none}
  .ng-nav__cta{display:flex;position:fixed;right:20px;bottom:20px;width:min(320px,86vw);left:auto;justify-content:center;align-items:center;height:52px;border-radius:999px;background-image:var(--g-brand);color:#fff;font-weight:600;box-shadow:0 12px 30px rgba(91,61,245,.32);transform:translateX(140%);transition:transform .28s var(--ease)}
  .ng-nav__links.is-open .ng-nav__cta{transform:translateX(0)}
  .ng-burger{display:flex;margin-left:auto}
  .ng-nav__actions .ng-btn--ghost{display:none}
  .ng-toc{position:static;display:flex;align-items:center;gap:8px;overflow-x:auto;scroll-snap-type:x mandatory;padding:10px;margin-bottom:24px;border-radius:16px}
  .ng-toc__title{display:none}
  .ng-toc__link{flex:0 0 auto;scroll-snap-align:start;padding:8px 16px;border-radius:999px;background:var(--c-bg);font-size:14px;white-space:nowrap}
  .ng-section{padding:64px 0}
  .ng-cta-wrap{padding:36px}
  .ng-cta-wrap h2{font-size:24px}
}
@media (max-width:767px){
  body{font-size:16px;line-height:1.8}
  .ng-container{padding:0 20px}
  .ng-hero{padding:36px 0 56px}
  .ng-hero h1{font-size:28px}
  .ng-hero__lead{font-size:16px}
  .ng-hero__actions .ng-btn{width:100%}
  .ng-mini-stats{gap:8px}
  .ng-mini b{font-size:16px}
  .ng-section{padding:52px 0}
  .ng-sec-head h2{font-size:22px}
  .ng-sec-head{margin-bottom:24px}
  .ng-timeline::before{left:21px;transform:none}
  .ng-step{grid-template-columns:1fr;column-gap:0;padding-left:62px}
  .ng-step:nth-child(odd) .ng-step__card,.ng-step:nth-child(even) .ng-step__card{grid-column:1}
  .ng-step__dot{left:0;transform:none;top:20px}
  .ng-tablecard__head{display:none}
  .ng-tablecard__row{grid-template-columns:1fr;gap:8px;padding:20px}
  .ng-tablecard__cell{display:flex;justify-content:space-between;gap:14px}
  .ng-tablecard__cell::before{content:attr(data-label);font-size:13px;color:var(--c-text-3);flex:0 0 auto}
  .ng-form{grid-template-columns:1fr}
  .ng-form__submit .ng-btn{width:100%}
  .ng-cta-wrap{padding:28px;border-radius:22px}
  .ng-cta-wrap h2{font-size:22px}
  .ng-footer{padding-top:48px;margin-top:52px}
  .ng-footer__bottom{text-align:center}
}

/* roulang page: category3 */
:root{
  --c-primary:#5B3DF5;
  --c-primary-d:#4527D6;
  --c-primary-l:#EDE9FE;
  --c-second:#17C3B2;
  --c-second-l:#DFF7F4;
  --c-accent:#FFB627;
  --c-danger:#EF4B6B;
  --c-ink:#1B1533;
  --c-text:#2A2540;
  --c-text-2:#6B6584;
  --c-text-3:#9A94AE;
  --c-bg:#F6F5FB;
  --c-card:#FFFFFF;
  --c-line:#E6E2F2;
  --g-brand:linear-gradient(120deg,#5B3DF5 0%,#17C3B2 100%);
  --g-soft:linear-gradient(135deg,#F1EEFF 0%,#E5F7F5 100%);
  --r-lg:24px;
  --r-md:20px;
  --r-sm:14px;
  --shadow-1:0 2px 8px rgba(27,21,51,.06);
  --shadow-2:0 14px 36px rgba(91,61,245,.14);
  --ease:cubic-bezier(.2,.7,.3,1);
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC","Noto Sans SC",system-ui,sans-serif;
  font-size:17px;
  line-height:1.85;
  color:var(--c-text);
  background:var(--c-bg);
  font-variant-numeric:tabular-nums;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border:0}
h1,h2,h3,h4{margin:0 0 16px;font-weight:700;line-height:1.3;letter-spacing:-.01em;color:var(--c-text)}
h1{font-size:44px;line-height:1.25}
h2{font-size:30px}
h3{font-size:20px;font-weight:600}
p{margin:0 0 16px}
ul,ol{margin:0;padding:0}
a{color:var(--c-primary);text-decoration:none;transition:color .2s var(--ease)}
a:hover{color:var(--c-primary-d)}
button{font-family:inherit}
a:focus-visible,button:focus-visible,input:focus-visible,textarea:focus-visible,[tabindex]:focus-visible{outline:2px solid var(--c-primary);outline-offset:2px;border-radius:6px}
.ng-container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px}
@media (min-width:1200px){.ng-container{max-width:1280px}}

/* ---------- header ---------- */
.ng-header{position:sticky;top:0;z-index:120;background:rgba(255,255,255,.94);backdrop-filter:saturate(180%) blur(12px);-webkit-backdrop-filter:saturate(180%) blur(12px);border-bottom:1px solid var(--c-line);transition:box-shadow .2s var(--ease),background .2s var(--ease)}
.ng-header.is-scrolled{background:rgba(255,255,255,.98);box-shadow:0 6px 24px rgba(27,21,51,.08)}
.ng-nav{display:flex;align-items:center;justify-content:space-between;gap:18px;height:72px}
.ng-logo{display:inline-flex;align-items:center;gap:10px;color:var(--c-text);font-weight:700;font-size:18px;letter-spacing:-.01em}
.ng-logo:hover{color:var(--c-text)}
.ng-logo__mark{width:32px;height:32px;border-radius:10px;background:var(--g-brand);color:#fff;display:inline-flex;align-items:center;justify-content:center;font-size:16px;font-weight:700;box-shadow:0 6px 16px rgba(91,61,245,.28);flex:0 0 auto}
.ng-logo__text{white-space:nowrap}
.ng-nav__links{display:flex;align-items:center;gap:4px}
.ng-nav__link{position:relative;display:inline-flex;align-items:center;height:40px;padding:0 14px;border-radius:999px;font-size:15px;font-weight:500;color:var(--c-text-2);transition:color .2s var(--ease),background .2s var(--ease)}
.ng-nav__link::after{content:"";position:absolute;left:14px;right:14px;bottom:7px;height:2px;border-radius:2px;background:var(--g-brand);transform:scaleX(0);transform-origin:left;transition:transform .2s var(--ease)}
.ng-nav__link:hover{color:var(--c-primary);background:var(--c-primary-l)}
.ng-nav__link:hover::after{transform:scaleX(1)}
.ng-nav__link.is-active{color:var(--c-primary);font-weight:600}
.ng-nav__link.is-active::after{transform:scaleX(1)}
.ng-nav__actions{display:flex;align-items:center;gap:10px}
.ng-burger{display:none;width:44px;height:44px;border:1px solid var(--c-line);border-radius:12px;background:#fff;flex-direction:column;align-items:center;justify-content:center;gap:4px;cursor:pointer;padding:0;transition:border-color .2s var(--ease)}
.ng-burger span{display:block;width:18px;height:2px;border-radius:2px;background:var(--c-text);transition:background .2s var(--ease)}
.ng-burger:hover{border-color:var(--c-primary)}
.ng-burger:hover span{background:var(--c-primary)}

/* ---------- buttons ---------- */
.ng-btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;height:44px;padding:0 22px;border-radius:var(--r-sm);font-size:15px;font-weight:600;border:1px solid transparent;cursor:pointer;transition:all .2s var(--ease);white-space:nowrap;text-align:center}
.ng-btn--pill{border-radius:999px}
.ng-btn--primary{background:var(--g-brand);background-size:160% 100%;color:#fff;box-shadow:0 8px 20px rgba(91,61,245,.22)}
.ng-btn--primary:hover{background-position:100% 0;color:#fff;box-shadow:0 12px 28px rgba(91,61,245,.3);transform:translateY(-1px)}
.ng-btn--ghost{background:#fff;border-color:var(--c-line);color:var(--c-primary)}
.ng-btn--ghost:hover{border-color:var(--c-primary);background:var(--c-primary-l);color:var(--c-primary-d)}
.ng-btn--dark{background:var(--c-ink);color:#fff}
.ng-btn--dark:hover{background:#2b2150;color:#fff;transform:translateY(-1px)}
.ng-btn--light{background:#fff;color:var(--c-ink);box-shadow:0 10px 26px rgba(27,21,51,.18)}
.ng-btn--light:hover{background:#fff;color:var(--c-primary-d);transform:translateY(-1px)}
.ng-btn--outline-light{background:transparent;border-color:rgba(255,255,255,.5);color:#fff}
.ng-btn--outline-light:hover{background:rgba(255,255,255,.14);color:#fff;border-color:#fff}

/* ---------- drawer ---------- */
.ng-drawer{position:fixed;inset:0;z-index:200;pointer-events:none}
.ng-drawer__mask{position:absolute;inset:0;background:rgba(27,21,51,.55);opacity:0;transition:opacity .25s var(--ease)}
.ng-drawer__panel{position:absolute;top:0;right:0;width:min(86vw,340px);height:100%;background:#fff;transform:translateX(100%);transition:transform .3s var(--ease);display:flex;flex-direction:column;padding:20px;overflow-y:auto}
.ng-drawer.is-open{pointer-events:auto}
.ng-drawer.is-open .ng-drawer__mask{opacity:1}
.ng-drawer.is-open .ng-drawer__panel{transform:translateX(0)}
.ng-drawer__head{display:flex;align-items:center;justify-content:space-between;padding-bottom:16px;border-bottom:1px solid var(--c-line)}
.ng-drawer__close{width:40px;height:40px;border-radius:12px;border:1px solid var(--c-line);background:#fff;color:var(--c-text-2);font-size:18px;line-height:1;cursor:pointer}
.ng-drawer__links{display:flex;flex-direction:column;padding:12px 0;flex:1}
.ng-drawer__links a{display:flex;align-items:center;height:48px;padding:0 12px;border-radius:12px;font-size:16px;color:var(--c-text);font-weight:500}
.ng-drawer__links a:hover{background:var(--c-primary-l);color:var(--c-primary)}
.ng-drawer__links a.is-active{color:var(--c-primary);font-weight:600;background:var(--c-primary-l)}
.ng-drawer__foot{padding-top:16px;border-top:1px solid var(--c-line)}
.ng-drawer__foot .ng-btn{width:100%}

/* ---------- hero ---------- */
.ng-hero{position:relative;overflow:hidden;background:var(--c-ink)}
.ng-hero__bg{position:absolute;inset:0}
.ng-hero__bg img{width:100%;height:100%;object-fit:cover;object-position:center}
.ng-hero__overlay{position:absolute;inset:0;background:linear-gradient(120deg,rgba(27,21,51,.94) 0%,rgba(69,39,214,.8) 46%,rgba(23,195,178,.58) 100%)}
.ng-hero__grid{position:absolute;inset:0;opacity:.06;background-image:linear-gradient(rgba(255,255,255,.6) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.6) 1px,transparent 1px);background-size:56px 56px}
.ng-hero__inner{position:relative;z-index:3;padding:92px 0 128px;max-width:840px}
.ng-hero h1{color:#fff;margin-bottom:20px;text-shadow:0 4px 24px rgba(15,10,40,.35)}
.ng-hero__sub{color:rgba(255,255,255,.86);font-size:17px;line-height:1.85;max-width:680px;margin-bottom:28px}
.ng-hero__actions{display:flex;flex-wrap:wrap;gap:14px;align-items:center}
.ng-hero__note{color:rgba(255,255,255,.62);font-size:13px;margin:18px 0 0}
.ng-breadcrumb{display:flex;align-items:center;gap:8px;font-size:13px;color:rgba(255,255,255,.66);margin-bottom:18px}
.ng-breadcrumb a{color:rgba(255,255,255,.8)}
.ng-breadcrumb a:hover{color:#fff}
.ng-breadcrumb span.ng-breadcrumb__sep{opacity:.5}
.ng-breadcrumb .is-current{color:#fff;font-weight:500}

/* ---------- badges strip ---------- */
.ng-badges{position:relative;z-index:6;margin-top:-68px}
.ng-badges .cell{margin-bottom:20px}
.ng-badge-card{background:var(--c-card);border:1px solid var(--c-line);border-radius:var(--r-md);padding:24px;box-shadow:var(--shadow-2);transition:transform .2s var(--ease),border-color .2s var(--ease);height:100%}
.ng-badge-card:hover{transform:translateY(-3px);border-color:#D8D0FA}
.ng-badge-card__num{font-size:28px;font-weight:700;line-height:1.2;color:var(--c-primary);display:flex;align-items:baseline;gap:4px}
.ng-badge-card__num em{font-style:normal;font-size:15px;color:var(--c-accent);font-weight:700}
.ng-badge-card__label{font-size:14px;color:var(--c-text-2);margin-top:6px;line-height:1.7}

/* ---------- sections ---------- */
.ng-section{padding:88px 0}
.ng-section--soft{background:var(--g-soft)}
.ng-section--plain{background:var(--c-bg)}
.ng-section__head{max-width:760px;margin-bottom:40px}
.ng-section__head--center{margin-left:auto;margin-right:auto;text-align:center}
.ng-section__title{margin-bottom:14px}
.ng-section__sub{color:var(--c-text-2);font-size:16px;margin:0}
.ng-eyebrow{display:inline-flex;align-items:center;gap:8px;height:28px;padding:0 14px;border-radius:999px;background:var(--c-primary-l);color:var(--c-primary);font-size:13px;font-weight:600;margin-bottom:16px}
.ng-eyebrow::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--g-brand)}

/* ---------- rules list ---------- */
.ng-rules{list-style:none;margin:0;padding:0}
.ng-rule{border-top:1px solid var(--c-line);padding:34px 0}
.ng-rule:last-child{border-bottom:1px solid var(--c-line)}
.ng-rule__num{display:block;font-size:48px;font-weight:700;line-height:1;color:rgba(91,61,245,.16);letter-spacing:-.02em}
.ng-rule__title{margin:0 0 10px}
.ng-rule__desc{margin:0 0 14px;color:var(--c-text-2);font-size:16px;line-height:1.85;max-width:820px}
.ng-tag{display:inline-flex;align-items:center;height:28px;padding:0 14px;border-radius:999px;background:var(--c-primary-l);color:var(--c-primary);font-size:13px;font-weight:500}
.ng-tag--second{background:var(--c-second-l);color:#0E8C80}
.ng-tag--accent{background:#FFF3DC;color:#A96A00}

/* ---------- rhythm cards ---------- */
.ng-rhythm{background:var(--c-card);border:1px solid var(--c-line);border-radius:var(--r-lg);padding:36px;box-shadow:var(--shadow-1)}
.ng-rhythm__item{display:flex;gap:14px;padding:18px 0;border-bottom:1px dashed var(--c-line)}
.ng-rhythm__item:last-child{border-bottom:0;padding-bottom:0}
.ng-rhythm__item:first-child{padding-top:0}
.ng-rhythm__dot{flex:0 0 auto;width:34px;height:34px;border-radius:12px;background:var(--c-primary-l);color:var(--c-primary);display:inline-flex;align-items:center;justify-content:center;font-size:14px;font-weight:700}
.ng-rhythm__body h3{font-size:17px;margin:0 0 6px}
.ng-rhythm__body p{margin:0;font-size:15px;color:var(--c-text-2);line-height:1.75}
.ng-side-figure{border-radius:var(--r-lg);overflow:hidden;box-shadow:var(--shadow-2);position:relative}
.ng-side-figure img{width:100%;height:100%;min-height:280px;object-fit:cover;transition:transform .4s var(--ease)}
.ng-side-figure:hover img{transform:scale(1.03)}
.ng-side-figure__label{position:absolute;left:18px;bottom:18px;background:rgba(27,21,51,.62);color:#fff;font-size:13px;padding:7px 14px;border-radius:999px;backdrop-filter:blur(6px)}

/* ---------- faq ---------- */
.ng-faq{max-width:900px;margin:0 auto}
.ng-faq__item{position:relative;background:var(--c-card);border:1px solid var(--c-line);border-radius:16px;margin-bottom:12px;overflow:hidden;transition:box-shadow .2s var(--ease),border-color .2s var(--ease)}
.ng-faq__item::before{content:"";position:absolute;left:0;top:0;bottom:0;width:4px;background:var(--g-brand);opacity:0;transition:opacity .2s var(--ease)}
.ng-faq__item.is-open{border-color:#D8D0FA;box-shadow:var(--shadow-2)}
.ng-faq__item.is-open::before{opacity:1}
.ng-faq__q{width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;text-align:left;background:none;border:0;padding:20px 24px;font-size:17px;font-weight:600;color:var(--c-text);cursor:pointer;line-height:1.65;transition:color .2s var(--ease)}
.ng-faq__item.is-open .ng-faq__q{color:var(--c-primary)}
.ng-faq__icon{position:relative;flex:0 0 auto;width:20px;height:20px}
.ng-faq__icon::before,.ng-faq__icon::after{content:"";position:absolute;background:var(--c-primary);border-radius:2px;transition:transform .2s var(--ease),opacity .2s var(--ease)}
.ng-faq__icon::before{left:0;top:9px;width:20px;height:2px}
.ng-faq__icon::after{left:9px;top:0;width:2px;height:20px}
.ng-faq__item.is-open .ng-faq__icon::after{transform:scaleY(0);opacity:0}
.ng-faq__a{max-height:0;overflow:hidden;transition:max-height .3s var(--ease)}
.ng-faq__inner{padding:0 24px 22px;font-size:15px;line-height:1.8;color:var(--c-text-2)}
.ng-faq__inner p:last-child{margin-bottom:0}

/* ---------- cta cards ---------- */
.ng-cta2{display:grid;grid-template-columns:1.15fr .85fr;gap:24px;align-items:stretch}
.ng-cta2__dark{position:relative;overflow:hidden;background:var(--c-ink);border-radius:28px;padding:48px;color:#fff}
.ng-cta2__dark::after{content:"";position:absolute;right:-80px;top:-80px;width:260px;height:260px;border-radius:50%;background:radial-gradient(circle,rgba(23,195,178,.34),transparent 68%)}
.ng-cta2__dark h2{color:#fff;font-size:28px;margin-bottom:14px;position:relative;z-index:2}
.ng-cta2__dark p{color:rgba(255,255,255,.72);font-size:16px;max-width:520px;position:relative;z-index:2}
.ng-cta2__dark .ng-cta2__actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:26px;position:relative;z-index:2}
.ng-cta2__dark ul{list-style:none;position:relative;z-index:2;margin:22px 0 0}
.ng-cta2__dark li{display:flex;gap:10px;color:rgba(255,255,255,.78);font-size:15px;padding:7px 0}
.ng-cta2__dark li span{color:var(--c-accent);font-weight:700}
.ng-cta2__light{background:#fff;border:1px solid var(--c-line);border-radius:28px;padding:32px;display:flex;flex-direction:column;box-shadow:var(--shadow-1)}
.ng-cta2__light img{border-radius:18px;width:100%;height:180px;object-fit:cover;margin-bottom:22px}
.ng-cta2__light h3{font-size:20px;margin-bottom:10px}
.ng-cta2__light p{color:var(--c-text-2);font-size:15px;line-height:1.75;flex:1}
.ng-cta2__light .ng-btn{margin-top:8px;align-self:flex-start}

/* ---------- footer ---------- */
.ng-footer{background:var(--c-ink);color:#fff;border-radius:24px 24px 0 0;padding:64px 0 28px;margin-top:88px}
.ng-footer .ng-logo{color:#fff}
.ng-footer .ng-logo:hover{color:#fff}
.ng-footer__desc{color:rgba(255,255,255,.66);font-size:14px;line-height:1.8;margin:16px 0 0;max-width:360px}
.ng-footer__title{font-size:15px;color:#fff;font-weight:600;margin:0 0 16px}
.ng-footer__links{display:flex;flex-direction:column;gap:10px}
.ng-footer__links a{color:rgba(255,255,255,.66);font-size:14px;transition:color .2s var(--ease),padding-left .2s var(--ease)}
.ng-footer__links a:hover{color:#fff;padding-left:4px}
.ng-footer__contact{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:12px}
.ng-footer__contact li{display:flex;gap:10px;align-items:flex-start;font-size:14px;color:rgba(255,255,255,.66);line-height:1.7}
.ng-footer__ico{flex:0 0 auto;width:24px;height:24px;border-radius:8px;background:rgba(255,255,255,.1);color:#fff;font-size:12px;display:inline-flex;align-items:center;justify-content:center;margin-top:2px}
.ng-footer__bottom{border-top:1px solid rgba(255,255,255,.12);margin-top:28px;padding-top:20px;font-size:13px;color:rgba(255,255,255,.5);text-align:center;line-height:1.8}

/* ---------- responsive ---------- */
@media (min-width:1024px){.ng-drawer{display:none}}
@media (max-width:1023px){
  .ng-nav__links{display:none}
  .ng-burger{display:inline-flex}
  .ng-nav{height:64px}
  .ng-hero__inner{padding:72px 0 112px}
  .ng-cta2{grid-template-columns:1fr}
}
@media (max-width:767px){
  body{font-size:16px}
  h1{font-size:30px}
  h2{font-size:23px}
  h3{font-size:18px}
  .ng-section{padding:52px 0}
  .ng-section__head{margin-bottom:28px}
  .ng-hero__inner{padding:56px 0 104px}
  .ng-hero__sub{font-size:16px}
  .ng-hero__actions .ng-btn{width:100%}
  .ng-rule{padding:26px 0}
  .ng-rule__num{font-size:36px;margin-bottom:8px}
  .ng-badges{margin-top:-56px}
  .ng-badges .cell{margin-bottom:14px}
  .ng-rhythm{padding:24px}
  .ng-cta2__dark{padding:28px}
  .ng-cta2__dark h2{font-size:22px}
  .ng-cta2__light{padding:24px}
  .ng-cta2__light .ng-btn{width:100%;align-self:stretch}
  .ng-faq__q{padding:18px 18px;font-size:16px}
  .ng-faq__inner{padding:0 18px 20px}
  .ng-footer{padding:48px 0 24px;margin-top:52px;border-radius:20px 20px 0 0}
}
@media (max-width:520px){
  .ng-container{padding:0 20px}
  .ng-logo__text{font-size:15px}
  .ng-nav__actions .ng-btn--ghost{display:none}
  .ng-nav__actions .ng-btn--primary{height:40px;padding:0 16px;font-size:14px}
  .ng-badge-card{padding:18px}
  .ng-badge-card__num{font-size:24px}
}