/* roulang page: index */
:root{
  --brand-deep:#2E1A47;
  --brand-1:#3A2160;
  --brand-2:#7A4BC9;
  --accent:#FF6B4A;
  --mint:#2FD6B4;
  --bg:#F7F4EF;
  --card:#FFFFFF;
  --line:#E7E1DA;
  --ink:#1B1420;
  --ink-2:#5A5266;
  --muted:#B8B2C0;
  --grad:linear-gradient(135deg,#3A2160 0%,#7A4BC9 100%);
  --radius-lg:24px;
  --radius-md:20px;
  --radius-sm:12px;
  --shadow-1:0 8px 24px rgba(46,26,71,.08);
  --shadow-2:0 18px 44px rgba(46,26,71,.16);
  --shadow-accent:0 12px 28px rgba(255,107,74,.28);
  --ease:240ms cubic-bezier(.2,.7,.3,1);
  --container:1200px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body{
  margin:0;
  font-family:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
  font-size:17px;
  line-height:1.75;
  color:var(--ink);
  background:var(--bg);
  overflow-x:hidden;
}
body.nav-open{overflow:hidden;}
img{max-width:100%;display:block;height:auto;}
a{color:var(--brand-2);text-decoration:none;transition:color var(--ease),border-color var(--ease),background-color var(--ease),transform var(--ease);}
a:hover{color:var(--accent);}
button{font-family:inherit;}
h1,h2,h3,h4{margin:0;color:var(--ink);font-weight:700;letter-spacing:.4px;}
p{margin:0;}
ul{margin:0;padding:0;list-style:none;}
:focus-visible{outline:3px solid rgba(255,107,74,.45);outline-offset:2px;border-radius:6px;}

.container{max-width:var(--container);margin:0 auto;padding:0 32px;width:100%;}

/* ---------- 顶部信息条 ---------- */
.topbar{background:var(--brand-deep);color:rgba(255,255,255,.82);font-size:13px;line-height:1.6;}
.topbar__inner{display:flex;flex-wrap:wrap;gap:8px 28px;align-items:center;justify-content:space-between;padding-top:9px;padding-bottom:9px;}
.topbar__item{display:inline-flex;align-items:center;gap:8px;}
.topbar__dot{width:7px;height:7px;border-radius:50%;background:var(--mint);box-shadow:0 0 0 3px rgba(47,214,180,.18);}
.topbar a{color:#fff;}
.topbar a:hover{color:var(--accent);}

/* ---------- 导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:#fff;
  border-bottom:1px solid var(--line);
  transition:box-shadow var(--ease);
}
.site-header.is-scrolled{box-shadow:0 10px 30px rgba(46,26,71,.10);}
.header__inner{display:flex;align-items:center;justify-content:space-between;gap:24px;min-height:76px;}
.logo{display:inline-flex;align-items:center;gap:12px;flex:0 0 auto;}
.logo__mark{width:36px;height:36px;border-radius:11px;background:var(--grad);display:inline-flex;align-items:center;justify-content:center;gap:3px;box-shadow:0 6px 18px rgba(122,75,201,.28);}
.logo__mark i{display:block;width:4px;border-radius:2px;background:#fff;}
.logo__mark i:nth-child(1){height:10px;}
.logo__mark i:nth-child(2){height:18px;}
.logo__mark i:nth-child(3){height:13px;}
.logo__text{font-size:17px;font-weight:700;color:var(--brand-deep);letter-spacing:.4px;white-space:nowrap;}
.logo:hover .logo__text{color:var(--brand-2);}

.nav-drawer{display:flex;align-items:center;gap:36px;flex:1 1 auto;justify-content:flex-end;}
.main-nav{display:flex;align-items:center;gap:26px;}
.main-nav__link{
  position:relative;font-size:15px;font-weight:500;color:var(--ink-2);padding:26px 0;white-space:nowrap;
}
.main-nav__link::after{
  content:"";position:absolute;left:0;right:0;bottom:18px;height:2px;border-radius:2px;
  background:var(--grad);transform:scaleX(0);transform-origin:left;transition:transform var(--ease);
}
.main-nav__link:hover{color:var(--brand-deep);}
.main-nav__link:hover::after{transform:scaleX(1);}
.main-nav__link.is-active{color:var(--brand-deep);font-weight:600;}
.main-nav__link.is-active::after{transform:scaleX(1);}
.drawer-actions{display:flex;align-items:center;gap:16px;}
.link-quiet{font-size:15px;font-weight:500;color:var(--brand-2);border-bottom:1px solid transparent;padding-bottom:2px;}
.link-quiet:hover{border-bottom-color:var(--accent);}

.nav-toggle{
  display:none;width:44px;height:44px;border:1px solid var(--line);border-radius:12px;background:#fff;
  align-items:center;justify-content:center;flex-direction:column;gap:5px;cursor:pointer;padding:0;
}
.nav-toggle span{display:block;width:18px;height:2px;border-radius:2px;background:var(--brand-deep);transition:transform var(--ease),opacity var(--ease);}
.nav-toggle.is-active span:nth-child(1){transform:translateY(7px) rotate(45deg);}
.nav-toggle.is-active span:nth-child(2){opacity:0;}
.nav-toggle.is-active span:nth-child(3){transform:translateY(-7px) rotate(-45deg);}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  font-size:16px;font-weight:600;line-height:1;border-radius:999px;padding:15px 30px;
  border:1.5px solid transparent;cursor:pointer;transition:all var(--ease);text-align:center;
}
.btn--primary{background:var(--grad);color:#fff;box-shadow:0 10px 24px rgba(122,75,201,.22);}
.btn--primary:hover{color:#fff;transform:translateY(-2px);box-shadow:var(--shadow-accent);filter:brightness(1.06);}
.btn--primary:active{transform:translateY(0);}
.btn--ghost{background:transparent;border-color:var(--brand-deep);color:var(--brand-deep);}
.btn--ghost:hover{background:rgba(46,26,71,.08);color:var(--brand-deep);border-color:var(--brand-deep);}
.btn--sm{padding:12px 24px;font-size:15px;}
.btn--block{width:100%;}
.btn.is-disabled{opacity:.5;cursor:not-allowed;pointer-events:none;}

/* ---------- 标签 / 徽章 ---------- */
.tag{
  display:inline-flex;align-items:center;gap:6px;font-size:13px;font-weight:600;line-height:1;
  padding:7px 14px;border-radius:999px;background:rgba(122,75,201,.10);color:var(--brand-2);
}
.tag--accent{background:rgba(255,107,74,.12);color:#D8452A;}
.tag--mint{background:rgba(47,214,180,.14);color:#12876F;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;font-size:13px;font-weight:600;letter-spacing:.6px;
  padding:8px 16px;border-radius:999px;background:#fff;color:var(--brand-2);
  border:1px solid rgba(122,75,201,.24);box-shadow:var(--shadow-1);
}
.eyebrow::before{content:"";width:7px;height:7px;border-radius:50%;background:var(--mint);box-shadow:0 0 0 3px rgba(47,214,180,.20);}

/* ---------- 区块 ---------- */
.section{padding:96px 0;}
.section--tight{padding:64px 0;}
.section--white{background:#fff;}
.section__head{max-width:720px;margin-bottom:48px;}
.section__head--center{margin-left:auto;margin-right:auto;text-align:center;}
h2{font-size:30px;line-height:1.3;}
.section__title{position:relative;display:inline-block;padding-bottom:14px;margin-bottom:18px;}
.section__title::after{
  content:"";position:absolute;left:0;bottom:0;width:56px;height:4px;border-radius:3px;background:var(--grad);
}
.section__head--center .section__title::after{left:50%;transform:translateX(-50%);}
.section__lead{font-size:17px;color:var(--ink-2);max-width:44em;}

/* ---------- Hero ---------- */
.hero{position:relative;overflow:hidden;background:var(--brand-deep);}
.hero__bg{
  position:absolute;inset:0;
  background-image:linear-gradient(120deg,rgba(46,26,71,.94) 0%,rgba(58,33,96,.86) 45%,rgba(122,75,201,.62) 100%),url('/assets/images/backpic/back-1.png');
  background-size:cover;background-position:center;
}
.hero__inner{position:relative;z-index:2;padding-top:104px;padding-bottom:104px;}
.hero__grid{align-items:center;}
.hero__copy{color:#fff;padding-right:48px;}
.hero__title{font-size:56px;line-height:1.15;color:#fff;letter-spacing:.5px;margin:22px 0 20px;}
.hero__sub{font-size:19px;line-height:1.8;color:rgba(255,255,255,.82);max-width:32em;}
.hero__actions{display:flex;flex-wrap:wrap;gap:16px;margin:34px 0 38px;}
.hero .btn--primary{box-shadow:0 14px 32px rgba(255,107,74,.30);}
.hero .btn--ghost{border-color:rgba(255,255,255,.55);color:#fff;}
.hero .btn--ghost:hover{background:rgba(255,255,255,.14);color:#fff;}
.stats{display:flex;flex-wrap:wrap;gap:14px;}
.stats li{
  display:flex;flex-direction:column;gap:2px;padding:12px 22px;border-radius:999px;
  border:1px solid rgba(255,255,255,.28);background:rgba(255,255,255,.06);min-width:132px;
}
.stats strong{font-size:20px;color:var(--accent);font-weight:700;line-height:1.2;}
.stats span{font-size:13px;color:rgba(255,255,255,.72);}
.hero__visual{border-radius:var(--radius-lg);overflow:hidden;box-shadow:0 32px 70px rgba(0,0,0,.35);border:1px solid rgba(255,255,255,.16);}
.hero__visual img{width:100%;aspect-ratio:4/3;object-fit:cover;}

/* ---------- 品牌主张条 ---------- */
.claim{background:#fff;border-bottom:1px solid var(--line);}
.claim__inner{padding:44px 0;display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:24px;}
.claim__title{font-size:22px;font-weight:700;color:var(--brand-deep);line-height:1.45;max-width:26em;}
.claim__tags{display:flex;flex-wrap:wrap;gap:10px;}

/* ---------- 故事区 ---------- */
.story .grid-x{align-items:center;}
.story__media{border-radius:var(--radius-lg);overflow:hidden;box-shadow:var(--shadow-2);}
.story__media img{width:100%;aspect-ratio:16/11;object-fit:cover;}
.story__copy{padding-left:56px;}
.story__list{margin-top:26px;display:grid;gap:18px;}
.story__list li{display:flex;gap:14px;align-items:flex-start;}
.story__num{
  flex:0 0 auto;width:30px;height:30px;border-radius:10px;background:rgba(122,75,201,.12);
  color:var(--brand-2);font-size:14px;font-weight:700;display:flex;align-items:center;justify-content:center;
}
.story__list strong{display:block;font-size:16px;margin-bottom:2px;}
.story__list p{font-size:15px;color:var(--ink-2);}

/* ---------- 精选内容卡 ---------- */
.featured__grid{gap:28px 28px;}
.feature-card{
  position:relative;background:var(--card);border:1px solid var(--line);border-radius:var(--radius-lg);
  padding:32px 30px;box-shadow:var(--shadow-1);transition:transform var(--ease),box-shadow var(--ease),border-color var(--ease);
  height:100%;display:flex;flex-direction:column;gap:14px;
}
.feature-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-2);border-color:rgba(122,75,201,.28);}
.feature-card__num{
  font-size:26px;font-weight:700;line-height:1;color:transparent;background:var(--grad);
  -webkit-background-clip:text;background-clip:text;
}
.feature-card h3{font-size:20px;font-weight:600;}
.feature-card p{font-size:15px;color:var(--ink-2);}
.feature-card__link{margin-top:auto;font-size:15px;font-weight:600;color:var(--brand-2);display:inline-flex;align-items:center;gap:8px;}
.feature-card:hover .feature-card__link{color:var(--accent);gap:12px;}
.feature-card--media{padding:0;overflow:hidden;flex-direction:row;}
.feature-card--media .feature-card__img{flex:0 0 44%;}
.feature-card--media .feature-card__img img{width:100%;height:100%;object-fit:cover;min-height:220px;}
.feature-card--media .feature-card__body{padding:30px 28px;display:flex;flex-direction:column;gap:14px;flex:1 1 auto;}
.feature-card--offset{margin-top:28px;}

/* ---------- 最新信息 ---------- */
.latest{background:#fff;}
.latest__head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;flex-wrap:wrap;margin-bottom:44px;}
.latest__more{font-size:15px;font-weight:600;color:var(--brand-2);display:inline-flex;align-items:center;gap:8px;}
.latest__more:hover{color:var(--accent);gap:12px;}
.news-lead{
  display:flex;flex-wrap:wrap;background:var(--bg);border:1px solid var(--line);border-radius:var(--radius-lg);
  overflow:hidden;box-shadow:var(--shadow-1);transition:transform var(--ease),box-shadow var(--ease);
}
.news-lead:hover{transform:translateY(-4px);box-shadow:var(--shadow-2);}
.news-lead__img{flex:1 1 340px;min-height:250px;overflow:hidden;}
.news-lead__img img{width:100%;height:100%;object-fit:cover;transition:transform 420ms var(--ease);}
.news-lead:hover .news-lead__img img{transform:scale(1.04);}
.news-lead__body{flex:1 1 400px;padding:34px 34px 30px;display:flex;flex-direction:column;gap:14px;}
.news-lead__body h3{font-size:24px;line-height:1.4;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.news-lead__body p{font-size:15px;color:var(--ink-2);display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden;}
.meta{display:flex;align-items:center;justify-content:space-between;gap:16px;margin-top:auto;font-size:14px;color:var(--ink-2);}
.meta__arrow{color:var(--brand-2);font-weight:700;transition:transform var(--ease);}
.news-lead:hover .meta__arrow{transform:translateX(4px);}

.news-list{margin-top:26px;display:grid;gap:16px;}
.news-item{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-md);padding:22px 26px;
  display:flex;flex-wrap:wrap;align-items:center;gap:14px 20px;box-shadow:var(--shadow-1);
  transition:transform var(--ease),box-shadow var(--ease),border-color var(--ease);
}
.news-item:hover{transform:translateY(-3px);box-shadow:var(--shadow-2);border-color:rgba(122,75,201,.26);}
.news-item__main{flex:1 1 320px;display:flex;flex-direction:column;gap:8px;}
.news-item h3{font-size:17px;font-weight:600;line-height:1.5;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.news-item p{font-size:14px;color:var(--ink-2);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.news-item:hover h3{color:var(--accent);}
.news-item__side{display:flex;align-items:center;gap:18px;font-size:14px;color:var(--ink-2);}
.empty-state{
  border:1px dashed var(--line);border-radius:var(--radius-lg);background:var(--bg);
  padding:64px 28px;text-align:center;display:flex;flex-direction:column;align-items:center;gap:16px;
}
.empty-state__icon{
  width:56px;height:56px;border-radius:18px;background:rgba(122,75,201,.10);color:var(--brand-2);
  display:flex;align-items:center;justify-content:center;font-size:24px;
}
.empty-state p{color:var(--ink-2);font-size:15px;}

/* ---------- 信任背书 ---------- */
.trust{background:var(--brand-deep);color:#fff;}
.trust h2,.trust .section__lead{color:#fff;}
.trust .section__lead{color:rgba(255,255,255,.75);}
.trust__band{display:grid;grid-template-columns:repeat(4,1fr);gap:18px;}
.trust__cell{
  border:1px solid rgba(255,255,255,.18);border-radius:var(--radius-md);padding:26px 22px;
  background:rgba(255,255,255,.05);transition:background-color var(--ease),transform var(--ease);
}
.trust__cell:hover{background:rgba(255,255,255,.10);transform:translateY(-3px);}
.trust__cell strong{display:block;font-size:26px;color:var(--accent);line-height:1.2;margin-bottom:8px;}
.trust__cell span{font-size:14px;color:rgba(255,255,255,.78);display:block;}

/* ---------- FAQ ---------- */
.faq{display:grid;gap:12px;max-width:900px;}
.faq__item{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-md);overflow:hidden;
  transition:box-shadow var(--ease),border-color var(--ease);position:relative;
}
.faq__item::before{
  content:"";position:absolute;left:0;top:0;bottom:0;width:4px;background:var(--grad);
  transform:scaleY(0);transform-origin:top;transition:transform var(--ease);
}
.faq__item.is-open{box-shadow:var(--shadow-2);border-color:rgba(122,75,201,.26);}
.faq__item.is-open::before{transform:scaleY(1);}
.faq__q{
  width:100%;background:none;border:0;padding:22px 26px;display:flex;align-items:center;justify-content:space-between;
  gap:20px;cursor:pointer;text-align:left;font-size:17px;font-weight:600;color:var(--ink);
}
.faq__icon{position:relative;flex:0 0 auto;width:22px;height:22px;transition:transform var(--ease);}
.faq__icon::before,.faq__icon::after{
  content:"";position:absolute;left:50%;top:50%;background:var(--brand-2);border-radius:2px;
  transform:translate(-50%,-50%);
}
.faq__icon::before{width:14px;height:2px;}
.faq__icon::after{width:2px;height:14px;}
.faq__item.is-open .faq__icon{transform:rotate(45deg);}
.faq__a{max-height:0;overflow:hidden;transition:max-height 240ms cubic-bezier(.2,.7,.3,1);}
.faq__a p{padding:0 26px 24px;font-size:15.5px;color:var(--ink-2);}

/* ---------- 订阅 CTA ---------- */
.cta-block{background:#fff;}
.cta-block__inner{
  border-radius:28px;padding:56px 48px;background:var(--grad);color:#fff;
  display:grid;grid-template-columns:1.05fr .95fr;gap:44px;align-items:center;
  box-shadow:0 28px 64px rgba(46,26,71,.24);
}
.cta-block__inner h2{color:#fff;font-size:28px;margin-bottom:14px;}
.cta-block__inner p{color:rgba(255,255,255,.82);font-size:16px;}
.cta-points{margin-top:24px;display:grid;gap:10px;}
.cta-points li{font-size:15px;color:rgba(255,255,255,.9);display:flex;align-items:center;gap:10px;}
.cta-points li::before{content:"";width:8px;height:8px;border-radius:50%;background:var(--mint);flex:0 0 auto;}
.form-card{background:rgba(255,255,255,.10);border:1px solid rgba(255,255,255,.22);border-radius:var(--radius-md);padding:28px 26px;}
.field{margin-bottom:18px;}
.field label{display:block;font-size:13px;color:rgba(255,255,255,.78);margin-bottom:8px;letter-spacing:.3px;}
.field input,.field select,.field textarea{
  width:100%;height:52px;padding:0 16px;border-radius:var(--radius-sm);
  border:1.5px solid rgba(255,255,255,.35);background:rgba(255,255,255,.94);
  font-size:15px;color:var(--ink);font-family:inherit;transition:all var(--ease);
}
.field textarea{height:auto;padding:12px 16px;min-height:96px;resize:vertical;line-height:1.6;}
.field input:focus,.field select:focus,.field textarea:focus{
  outline:none;border-color:var(--accent);box-shadow:0 0 0 4px rgba(255,107,74,.25);
}
.field__hint{font-size:13px;color:rgba(255,255,255,.65);margin-top:8px;}
.form-note{font-size:13px;color:rgba(255,255,255,.7);margin-top:14px;line-height:1.7;}

/* ---------- 页脚 ---------- */
.site-footer{background:linear-gradient(135deg,#2E1A47 0%,#3A2160 55%,#4A2A78 100%);color:rgba(255,255,255,.78);padding:72px 0 0;}
.footer__grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:40px;padding-bottom:52px;}
.footer__brand .logo__text{color:#fff;}
.footer__brand p{font-size:14.5px;line-height:1.85;margin-top:18px;max-width:30em;color:rgba(255,255,255,.72);}
.footer__col h4{font-size:15px;color:#fff;margin-bottom:18px;letter-spacing:.5px;}
.footer__col ul{display:grid;gap:12px;}
.footer__col a{font-size:14.5px;color:rgba(255,255,255,.76);display:inline-block;transition:color var(--ease),transform var(--ease);}
.footer__col a:hover{color:var(--accent);transform:translateX(2px);}
.footer__bottom{
  border-top:1px solid rgba(255,255,255,.14);padding:22px 0 28px;font-size:13px;line-height:1.9;
  color:rgba(255,255,255,.62);display:flex;flex-wrap:wrap;gap:10px 28px;justify-content:space-between;
}

/* ---------- 响应式 ---------- */
@media (max-width:1199px){
  .hero__title{font-size:48px;}
  .story__copy{padding-left:36px;}
}
@media (max-width:1023px){
  .container{padding:0 24px;}
  .section{padding:72px 0;}
  .hero__inner{padding-top:76px;padding-bottom:76px;}
  .hero__title{font-size:44px;}
  .hero__copy{padding-right:0;margin-bottom:44px;}
  .story__copy{padding-left:0;margin-top:40px;}
  .trust__band{grid-template-columns:repeat(2,1fr);}
  .cta-block__inner{grid-template-columns:1fr;padding:44px 32px;}
  .footer__grid{grid-template-columns:repeat(2,1fr);gap:36px;}

  .nav-toggle{display:flex;}
  .nav-drawer{
    position:fixed;left:0;right:0;top:64px;bottom:0;background:#fff;
    flex-direction:column;align-items:stretch;justify-content:flex-start;gap:0;
    padding:24px 24px 40px;transform:translateX(105%);opacity:0;pointer-events:none;
    transition:transform var(--ease),opacity var(--ease);overflow-y:auto;
    box-shadow:0 20px 50px rgba(46,26,71,.16);
  }
  .nav-drawer.is-open{transform:translateX(0);opacity:1;pointer-events:auto;}
  .main-nav{flex-direction:column;align-items:stretch;gap:0;}
  .main-nav__link{padding:18px 0;font-size:17px;border-bottom:1px solid var(--line);}
  .main-nav__link::after{display:none;}
  .main-nav__link.is-active{color:var(--brand-2);}
  .drawer-actions{flex-direction:column;align-items:stretch;gap:14px;margin-top:28px;}
  .drawer-actions .btn{width:100%;}
  .link-quiet{text-align:center;padding:8px 0;}
  .header__inner{min-height:64px;}
}
@media (max-width:767px){
  body{font-size:16px;}
  .section{padding:56px 0;}
  .container{padding:0 20px;}
  h2{font-size:24px;}
  .hero__title{font-size:32px;}
  .hero__sub{font-size:17px;}
  .hero__actions{flex-direction:column;align-items:stretch;}
  .hero__actions .btn{width:100%;}
  .stats{flex-wrap:nowrap;overflow-x:auto;padding-bottom:6px;margin:0 -20px;padding-left:20px;padding-right:20px;}
  .stats li{flex:0 0 auto;}
  .claim__inner{padding:32px 0;}
  .feature-card--media{flex-direction:column;}
  .feature-card--media .feature-card__img{flex:0 0 auto;}
  .feature-card--media .feature-card__img img{min-height:190px;aspect-ratio:16/10;}
  .feature-card--offset{margin-top:0;}
  .news-lead__body{padding:26px 22px 24px;}
  .news-lead__body h3{font-size:20px;}
  .news-item{padding:20px;}
  .news-item__side{width:100%;justify-content:space-between;}
  .trust__band{grid-template-columns:1fr;}
  .faq__q{padding:18px 20px;font-size:16px;}
  .faq__a p{padding:0 20px 20px;}
  .cta-block__inner{padding:32px 22px;border-radius:22px;}
  .form-card{padding:22px 18px;}
  .footer__grid{grid-template-columns:1fr;gap:30px;}
  .footer__bottom{flex-direction:column;gap:8px;}
  .topbar__inner{justify-content:flex-start;gap:6px 18px;}
}

/* roulang page: article */
:root{
  --brand-deep:#2E1A47;
  --brand-mid:#3A2160;
  --brand-violet:#7A4BC9;
  --brand-grad:linear-gradient(135deg,#3A2160 0%,#7A4BC9 100%);
  --accent:#FF6B4A;
  --accent-soft:rgba(255,107,74,.12);
  --mint:#2FD6B4;
  --bg:#F7F4EF;
  --card:#FFFFFF;
  --line:#E7E1DA;
  --text:#1B1420;
  --muted:#5A5266;
  --faint:#B8B2C0;
  --radius-card:24px;
  --radius-img:20px;
  --radius-sm:12px;
  --shadow:0 8px 24px rgba(46,26,71,.08);
  --shadow-lg:0 18px 44px rgba(46,26,71,.16);
  --shadow-accent:0 12px 28px rgba(255,107,74,.28);
  --ease:240ms cubic-bezier(.2,.7,.3,1);
  --container:1200px;
  --sec-space:96px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:17px;
  line-height:1.75;
  letter-spacing:.01em;
}
img{max-width:100%;height:auto;display:block;border:0}
a{color:var(--brand-violet);text-decoration:none;transition:color var(--ease),border-color var(--ease)}
a:hover{color:var(--accent)}
button,input,textarea,select{font:inherit;color:inherit}
h1,h2,h3,h4{margin:0;font-weight:700;letter-spacing:.5px;line-height:1.25;color:var(--text)}
p{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 32px}
:focus-visible{outline:3px solid rgba(255,107,74,.45);outline-offset:2px;border-radius:6px}

/* ---------- 顶部信息条 ---------- */
.topbar{background:var(--brand-deep);color:#EDE7F5;font-size:13px;letter-spacing:.2px}
.topbar__inner{display:flex;align-items:center;justify-content:space-between;gap:16px;min-height:38px;padding-top:6px;padding-bottom:6px;flex-wrap:wrap}
.topbar__list{display:flex;align-items:center;gap:22px;flex-wrap:wrap}
.topbar__item{display:inline-flex;align-items:center;gap:7px}
.topbar__dot{width:7px;height:7px;border-radius:50%;background:var(--mint);box-shadow:0 0 0 3px rgba(47,214,180,.18)}
.topbar a{color:#EDE7F5}
.topbar a:hover{color:var(--accent)}

/* ---------- Header / Nav ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:#fff;
  border-bottom:1px solid var(--line);
  transition:box-shadow var(--ease);
}
.site-header.is-scrolled{box-shadow:0 6px 22px rgba(46,26,71,.10)}
.header__inner{display:flex;align-items:center;gap:24px;min-height:76px}
.logo{display:inline-flex;align-items:center;gap:11px;flex-shrink:0}
.logo__mark{position:relative;width:34px;height:34px;flex:0 0 34px;border-radius:11px;background:var(--brand-grad);display:inline-flex;align-items:center;justify-content:center;gap:3px}
.logo__mark i{display:block;width:4px;border-radius:3px;background:#fff}
.logo__mark i:nth-child(1){height:10px;opacity:.75}
.logo__mark i:nth-child(2){height:17px}
.logo__mark i:nth-child(3){height:13px;opacity:.9;background:var(--accent)}
.logo__text{font-size:17px;font-weight:700;color:var(--brand-deep);letter-spacing:.4px;white-space:nowrap}
.main-nav{display:flex;align-items:center;gap:6px;flex:1 1 auto;overflow-x:auto;scrollbar-width:none}
.main-nav::-webkit-scrollbar{display:none}
.main-nav__link{
  position:relative;
  display:inline-block;
  padding:10px 12px;
  font-size:15px;
  font-weight:500;
  color:var(--text);
  white-space:nowrap;
  border-radius:10px;
}
.main-nav__link::after{
  content:"";position:absolute;left:12px;right:12px;bottom:4px;height:2px;border-radius:2px;
  background:var(--brand-grad);transform:scaleX(0);transform-origin:left;transition:transform var(--ease);
}
.main-nav__link:hover{color:var(--brand-violet);background:rgba(122,75,201,.06)}
.main-nav__link.is-active{color:var(--brand-violet);font-weight:600}
.main-nav__link.is-active::after,.main-nav__link:hover::after{transform:scaleX(1)}
.header__actions{display:flex;align-items:center;gap:14px;flex-shrink:0}
.header__textlink{font-size:14px;font-weight:600;color:var(--brand-deep);white-space:nowrap}
.header__textlink:hover{color:var(--accent)}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:14px 30px;border-radius:999px;border:1.5px solid transparent;
  font-size:16px;font-weight:600;line-height:1;cursor:pointer;
  transition:transform var(--ease),box-shadow var(--ease),background var(--ease),color var(--ease),border-color var(--ease);
}
.btn--primary{background:var(--brand-grad);color:#fff;box-shadow:0 8px 22px rgba(58,33,96,.24)}
.btn--primary:hover{color:#fff;filter:brightness(1.08);transform:translateY(-2px);box-shadow:var(--shadow-accent)}
.btn--primary:active{transform:translateY(0);box-shadow:0 6px 16px rgba(58,33,96,.22)}
.btn--ghost{background:transparent;border-color:var(--brand-mid);color:var(--brand-mid)}
.btn--ghost:hover{background:rgba(46,26,71,.07);color:var(--brand-deep)}
.btn--light{background:#fff;color:var(--brand-deep)}
.btn--light:hover{color:var(--accent);transform:translateY(-2px);box-shadow:0 12px 26px rgba(0,0,0,.16)}
.btn--sm{padding:11px 22px;font-size:14px}
.btn[disabled],.btn.is-disabled{opacity:.5;cursor:not-allowed;transform:none;box-shadow:none}
.link-more{display:inline-flex;align-items:center;gap:6px;font-size:15px;font-weight:600;color:var(--brand-violet);border-bottom:1px solid transparent;transition:border-color var(--ease),color var(--ease)}
.link-more:hover{border-color:var(--accent);color:var(--accent)}

/* ---------- 文章头部 ---------- */
.article-hero{position:relative;overflow:hidden;background:var(--brand-deep);color:#fff}
.article-hero__bg{
  position:absolute;inset:0;
  background-image:linear-gradient(115deg,rgba(46,26,71,.94) 0%,rgba(58,33,96,.82) 45%,rgba(122,75,201,.55) 100%),url("/assets/images/backpic/back-1.png");
  background-size:cover;background-position:center;
}
.article-hero__inner{position:relative;padding-top:64px;padding-bottom:72px}
.breadcrumb{display:flex;align-items:center;gap:9px;flex-wrap:wrap;font-size:13.5px;color:rgba(255,255,255,.75);margin-bottom:22px}
.breadcrumb a{color:rgba(255,255,255,.85)}
.breadcrumb a:hover{color:var(--accent)}
.breadcrumb__sep{opacity:.5}
.breadcrumb__current{color:#fff;max-width:52ch;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;padding:7px 15px;border-radius:999px;
  background:rgba(255,255,255,.12);border:1px solid rgba(255,255,255,.24);
  font-size:13px;font-weight:600;letter-spacing:.6px;color:#fff;margin-bottom:20px;
}
.eyebrow span.dot{width:7px;height:7px;border-radius:50%;background:var(--mint)}
.article-title{
  font-size:clamp(28px,3.4vw,42px);
  line-height:1.28;
  color:#fff;
  max-width:24ch;
  word-break:break-word;
}
.article-meta{display:flex;align-items:center;gap:14px;flex-wrap:wrap;margin-top:22px;font-size:14px;color:rgba(255,255,255,.78)}
.article-meta .sep{width:5px;height:5px;border-radius:50%;background:rgba(255,255,255,.4)}
.article-meta .tag{
  display:inline-flex;align-items:center;gap:6px;padding:5px 13px;border-radius:999px;
  background:rgba(47,214,180,.16);border:1px solid rgba(47,214,180,.42);color:#B9F5E7;font-size:13px;font-weight:600;
}

/* ---------- 正文布局 ---------- */
.article-shell{padding-top:72px;padding-bottom:72px}
.article-grid{display:grid;grid-template-columns:minmax(0,1fr) 320px;gap:56px;align-items:start}
.article-main{
  background:var(--card);border:1px solid var(--line);border-radius:var(--radius-card);
  box-shadow:var(--shadow);padding:44px 48px 52px;
}
.article-cover{border-radius:var(--radius-img);overflow:hidden;margin-bottom:34px;box-shadow:0 10px 26px rgba(46,26,71,.12)}
.article-cover img{width:100%;aspect-ratio:16/9;object-fit:cover}
.prose{font-size:17px;line-height:1.85;color:var(--text);max-width:46em}
.prose > * + *{margin-top:1.2em}
.prose p{margin:0}
.prose h2{
  position:relative;font-size:26px;font-weight:700;line-height:1.4;
  margin-top:40px;margin-bottom:16px;padding-left:16px;
}
.prose h2::before{
  content:"";position:absolute;left:0;top:6px;bottom:6px;width:4px;border-radius:4px;background:var(--brand-grad);
}
.prose h3{font-size:20px;font-weight:600;margin-top:30px;margin-bottom:12px;color:var(--brand-deep)}
.prose h4{font-size:17px;font-weight:600;margin-top:24px;margin-bottom:10px}
.prose a{color:var(--brand-violet);border-bottom:1px solid rgba(122,75,201,.35)}
.prose a:hover{color:var(--accent);border-color:var(--accent)}
.prose ul,.prose ol{margin-top:1.1em;padding-left:0}
.prose ul li{position:relative;padding-left:24px;margin-bottom:.6em}
.prose ul li::before{
  content:"";position:absolute;left:2px;top:.72em;width:9px;height:9px;border-radius:3px;
  background:var(--brand-grad);transform:rotate(45deg);
}
.prose ol{counter-reset:li}
.prose ol li{position:relative;padding-left:32px;margin-bottom:.6em;counter-increment:li}
.prose ol li::before{
  content:counter(li);position:absolute;left:0;top:.18em;width:22px;height:22px;border-radius:8px;
  background:rgba(122,75,201,.12);color:var(--brand-violet);font-size:12px;font-weight:700;
  display:flex;align-items:center;justify-content:center;line-height:1;
}
.prose blockquote{
  margin:1.6em 0;padding:20px 24px;background:#F5F0FA;border-left:3px solid var(--accent);
  border-radius:0 14px 14px 0;color:#3A2F48;font-size:16.5px;
}
.prose blockquote p{margin:0}
.prose img{border-radius:var(--radius-img);margin:1.6em auto;box-shadow:0 10px 26px rgba(46,26,71,.12)}
.prose figure{margin:1.6em 0}
.prose figcaption{text-align:center;font-size:13px;color:var(--muted);margin-top:10px}
.prose table{width:100%;border-collapse:collapse;margin:1.6em 0;font-size:15.5px;border-radius:14px;overflow:hidden}
.prose th,.prose td{padding:13px 16px;border-bottom:1px solid var(--line);text-align:left}
.prose th{background:#F3EEF9;color:var(--brand-deep);font-weight:600}
.prose tr:last-child td{border-bottom:0}
.prose code{background:#F1ECF7;color:var(--brand-violet);padding:2px 7px;border-radius:6px;font-size:15px}
.prose hr{border:0;height:1px;background:var(--line);margin:2.2em 0}

.article-empty{
  text-align:center;padding:64px 24px;border-radius:var(--radius-card);
  background:#FBF9F6;border:1px dashed var(--line);
}
.article-empty i{font-size:34px;color:var(--faint)}
.article-empty h2{font-size:22px;margin:18px 0 10px}
.article-empty p{color:var(--muted);font-size:15.5px;max-width:44ch;margin:0 auto 22px}

/* ---------- 侧栏 ---------- */
.article-side{display:grid;gap:22px;position:sticky;top:100px}
.side-card{background:var(--card);border:1px solid var(--line);border-radius:var(--radius-card);box-shadow:var(--shadow);padding:26px}
.side-card h3{font-size:16px;font-weight:700;color:var(--brand-deep);display:flex;align-items:center;gap:9px;margin-bottom:16px}
.side-card h3 i{color:var(--accent);font-size:14px}
.side-list li + li{margin-top:12px}
.side-list a{display:flex;gap:10px;align-items:flex-start;font-size:14.5px;color:var(--text);line-height:1.55}
.side-list a:hover{color:var(--accent)}
.side-list .num{
  flex:0 0 22px;height:22px;border-radius:8px;background:rgba(122,75,201,.12);color:var(--brand-violet);
  font-size:12px;font-weight:700;display:flex;align-items:center;justify-content:center;line-height:1;margin-top:2px;
}
.side-list a:hover .num{background:var(--accent-soft);color:var(--accent)}
.side-note{background:var(--brand-grad);color:#fff;border:0}
.side-note h3{color:#fff}
.side-note h3 i{color:var(--mint)}
.side-note p{font-size:14px;line-height:1.7;color:rgba(255,255,255,.85);margin-bottom:18px}
.side-note .btn{width:100%}

/* ---------- 相关推荐 ---------- */
.related{padding-bottom:var(--sec-space)}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;flex-wrap:wrap;margin-bottom:34px}
.section-head h2{font-size:30px;font-weight:700}
.section-head h2 em{font-style:normal;color:var(--brand-violet)}
.section-head p{margin-top:10px;font-size:15.5px;color:var(--muted);max-width:52ch}
.cards{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:26px}
.card{
  display:flex;flex-direction:column;background:var(--card);border:1px solid var(--line);
  border-radius:var(--radius-card);box-shadow:var(--shadow);overflow:hidden;
  transition:transform var(--ease),box-shadow var(--ease),border-color var(--ease);
}
.card:hover{transform:translateY(-4px);box-shadow:var(--shadow-lg);border-color:rgba(122,75,201,.28)}
.card__media{overflow:hidden}
.card__media img{width:100%;aspect-ratio:16/10;object-fit:cover;transition:transform var(--ease)}
.card:hover .card__media img{transform:scale(1.04)}
.card__body{padding:24px 26px 22px;display:flex;flex-direction:column;gap:12px;flex:1}
.badge{
  display:inline-flex;align-items:center;gap:7px;align-self:flex-start;
  padding:5px 13px;border-radius:999px;background:rgba(122,75,201,.10);
  color:var(--brand-violet);font-size:12.5px;font-weight:600;
}
.card h3{font-size:19px;font-weight:600;line-height:1.45;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.card:hover h3{color:var(--accent)}
.card p{font-size:14.5px;color:var(--muted);line-height:1.7;display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden}
.card__foot{margin-top:auto;padding-top:8px;display:flex;align-items:center;justify-content:space-between;font-size:13.5px;color:var(--faint)}
.card__foot .arrow{color:var(--brand-violet);transition:transform var(--ease);font-size:14px}
.card:hover .card__foot .arrow{transform:translateX(4px);color:var(--accent)}

/* ---------- 返回入口 + CTA ---------- */
.back-entry{padding-bottom:var(--sec-space)}
.back-entry__box{
  display:flex;align-items:center;justify-content:space-between;gap:26px;flex-wrap:wrap;
  background:var(--card);border:1px solid var(--line);border-radius:var(--radius-card);
  box-shadow:var(--shadow);padding:30px 34px;
}
.back-entry__box h2{font-size:22px;margin-bottom:8px}
.back-entry__box p{font-size:15px;color:var(--muted);max-width:56ch}
.back-entry__actions{display:flex;gap:14px;flex-wrap:wrap}

.cta{padding-bottom:var(--sec-space)}
.cta__box{
  position:relative;overflow:hidden;border-radius:var(--radius-card);
  background:var(--brand-grad);color:#fff;padding:56px 52px;
  display:grid;grid-template-columns:1.4fr .9fr;gap:38px;align-items:center;
  box-shadow:0 20px 48px rgba(46,26,71,.24);
}
.cta__box::after{
  content:"";position:absolute;right:-90px;top:-90px;width:280px;height:280px;border-radius:50%;
  background:radial-gradient(circle,rgba(255,107,74,.42) 0%,rgba(255,107,74,0) 70%);
}
.cta__content{position:relative}
.cta__box h2{color:#fff;font-size:30px;margin-bottom:14px}
.cta__box p{color:rgba(255,255,255,.86);font-size:16px;max-width:48ch;line-height:1.8}
.cta__actions{position:relative;display:flex;flex-direction:column;gap:14px}
.cta__actions .btn{width:100%}

/* ---------- Footer ---------- */
.site-footer{background:linear-gradient(135deg,#2E1A47 0%,#4A2C7A 100%);color:#EDE7F5;margin-top:8px}
.footer__grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:44px;padding:68px 0 48px}
.footer__brand .logo__text{color:#fff}
.footer__brand p{margin-top:18px;font-size:14px;line-height:1.9;color:rgba(237,231,245,.75);max-width:38ch}
.footer__col h4{font-size:15px;font-weight:700;color:#fff;margin-bottom:18px;letter-spacing:.6px}
.footer__col ul li + li{margin-top:12px}
.footer__col a{font-size:14px;color:rgba(237,231,245,.8);display:inline-block;transition:color var(--ease),transform var(--ease)}
.footer__col a:hover{color:var(--accent);transform:translateX(2px)}
.footer__bottom{
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  border-top:1px solid rgba(255,255,255,.14);padding:22px 0 30px;
  font-size:13px;line-height:1.9;color:rgba(237,231,245,.65);
}

/* ---------- 响应式 ---------- */
@media screen and (max-width:1199px){
  :root{--sec-space:84px}
  .article-grid{grid-template-columns:minmax(0,1fr) 290px;gap:40px}
  .article-main{padding:38px 36px 44px}
}
@media screen and (max-width:1023px){
  :root{--sec-space:72px}
  .container{padding:0 24px}
  .header__inner{min-height:68px;gap:16px}
  .main-nav__link{padding:9px 10px;font-size:14.5px}
  .header__textlink{display:none}
  .article-grid{grid-template-columns:minmax(0,1fr)}
  .article-side{position:static;grid-template-columns:repeat(2,minmax(0,1fr));grid-auto-rows:1fr}
  .side-note{grid-column:span 2}
  .cards{grid-template-columns:repeat(2,minmax(0,1fr))}
  .cta__box{grid-template-columns:1fr;padding:46px 36px}
  .footer__grid{grid-template-columns:1fr 1fr;gap:36px;padding:56px 0 40px}
}
@media screen and (max-width:639px){
  :root{--sec-space:56px}
  body{font-size:16px}
  .container{padding:0 20px}
  .topbar__inner{justify-content:flex-start;gap:12px}
  .topbar__list{gap:14px;font-size:12.5px}
  .site-header .header__inner{flex-wrap:wrap;padding-top:12px;padding-bottom:12px;min-height:64px}
  .logo__text{font-size:15.5px}
  .main-nav{order:3;width:100%;flex:1 0 100%;padding-bottom:4px}
  .header__actions{order:2;margin-left:auto}
  .header__actions .btn{padding:10px 18px;font-size:13.5px}
  .article-hero__inner{padding-top:38px;padding-bottom:48px}
  .article-title{max-width:100%}
  .article-meta{gap:10px;font-size:13px}
  .article-shell{padding-top:48px;padding-bottom:48px}
  .article-main{padding:26px 20px 32px;border-radius:20px}
  .article-cover{border-radius:16px;margin-bottom:26px}
  .prose{font-size:16px;line-height:1.85}
  .prose h2{font-size:21px;margin-top:32px;padding-left:13px}
  .prose h3{font-size:18px}
  .article-side{grid-template-columns:minmax(0,1fr)}
  .side-note{grid-column:auto}
  .cards{grid-template-columns:minmax(0,1fr)}
  .section-head h2{font-size:23px}
  .cta__box{padding:36px 22px}
  .cta__box h2{font-size:23px}
  .back-entry__box{padding:24px 20px}
  .back-entry__actions{width:100%;flex-direction:column}
  .back-entry__actions .btn{width:100%}
  .footer__grid{grid-template-columns:1fr;gap:32px;padding:48px 0 32px}
  .footer__bottom{flex-direction:column;align-items:flex-start}
}

/* roulang page: category1 */
:root{
  --brand-1:#2E1A47;
  --brand-2:#3A2160;
  --brand-3:#7A4BC9;
  --accent:#FF6B4A;
  --mint:#2FD6B4;
  --bg:#F7F4EF;
  --card:#FFFFFF;
  --line:#E7E1DA;
  --ink:#1B1420;
  --muted:#5A5266;
  --disabled:#B8B2C0;
  --radius-card:24px;
  --radius-img:20px;
  --radius-sm:12px;
  --shadow:0 8px 24px rgba(46,26,71,.08);
  --shadow-hover:0 18px 44px rgba(46,26,71,.16);
  --shadow-accent:0 12px 28px rgba(255,107,74,.28);
  --grad-brand:linear-gradient(135deg,#3A2160 0%,#7A4BC9 100%);
  --ease:240ms cubic-bezier(.2,.7,.3,1);
}

*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body{
  margin:0;
  font-family:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:17px;
  line-height:1.75;
  color:var(--ink);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4,h5{margin:0;font-weight:700;letter-spacing:.5px;color:var(--ink);}
p{margin:0 0 16px;}
a{color:inherit;text-decoration:none;transition:color var(--ease),background var(--ease);}
img{max-width:100%;display:block;height:auto;}
ul,ol{margin:0;padding:0;list-style:none;}
button{font:inherit;color:inherit;border:0;background:none;cursor:pointer;}
input,select,textarea{font:inherit;color:inherit;}

.container{width:100%;max-width:1200px;margin:0 auto;padding:0 32px;}

/* 顶部信息条 */
.topbar{
  background:var(--brand-1);
  color:#E7DEF6;
  font-size:13px;
  line-height:1.6;
}
.topbar__inner{
  display:flex;
  align-items:center;
  gap:22px;
  min-height:40px;
  flex-wrap:wrap;
}
.topbar__item{display:inline-flex;align-items:center;gap:7px;white-space:nowrap;}
.topbar__item i{color:var(--mint);font-size:11px;}
.topbar__dot{width:6px;height:6px;border-radius:50%;background:var(--mint);display:inline-block;}

/* 头部导航 */
.site-header{
  position:sticky;
  top:0;
  z-index:80;
  background:#fff;
  border-bottom:1px solid var(--line);
  transition:box-shadow var(--ease);
}
.site-header.is-scrolled{box-shadow:0 6px 20px rgba(46,26,71,.08);}
.header__inner{
  display:flex;
  align-items:center;
  gap:24px;
  min-height:76px;
}
.logo{display:inline-flex;align-items:center;gap:10px;flex:0 0 auto;}
.logo__mark{
  width:36px;height:36px;
  border-radius:12px;
  background:var(--grad-brand);
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:3px;
  padding:8px;
  box-shadow:0 6px 16px rgba(58,33,96,.28);
}
.logo__mark i{display:block;background:#fff;border-radius:2px;}
.logo__mark i:nth-child(1){background:#fff;}
.logo__mark i:nth-child(2){background:var(--accent);}
.logo__mark i:nth-child(3){background:var(--mint);grid-column:span 2;}
.logo__text{
  font-size:17px;
  font-weight:700;
  letter-spacing:.4px;
  color:var(--brand-1);
  white-space:nowrap;
}
.main-nav{
  display:flex;
  align-items:center;
  gap:4px;
  margin-left:auto;
}
.main-nav__link{
  position:relative;
  display:inline-block;
  padding:10px 12px;
  font-size:15px;
  font-weight:500;
  color:var(--muted);
  border-radius:10px;
}
.main-nav__link:hover{color:var(--brand-1);background:rgba(122,75,201,.08);}
.main-nav__link.is-active{color:var(--brand-1);font-weight:600;}
.main-nav__link.is-active::after{
  content:"";
  position:absolute;
  left:12px;right:12px;bottom:2px;
  height:2px;
  border-radius:2px;
  background:var(--grad-brand);
}
.main-nav__cta{display:none;}
.header__actions{display:flex;align-items:center;gap:14px;flex:0 0 auto;}
.header__more{
  font-size:15px;
  font-weight:500;
  color:var(--brand-3);
  border-bottom:1px solid transparent;
  padding-bottom:2px;
}
.header__more:hover{color:var(--accent);border-bottom-color:var(--accent);}

.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  padding:14px 30px;
  border-radius:999px;
  font-size:16px;
  font-weight:600;
  line-height:1.2;
  border:1.5px solid transparent;
  transition:transform var(--ease),box-shadow var(--ease),background var(--ease),color var(--ease),border-color var(--ease);
  white-space:nowrap;
}
.btn i{font-size:14px;}
.btn--primary{
  background:var(--grad-brand);
  color:#fff;
  box-shadow:0 8px 20px rgba(58,33,96,.22);
}
.btn--primary:hover{transform:translateY(-2px);box-shadow:var(--shadow-accent);filter:brightness(1.06);color:#fff;}
.btn--primary:active{transform:translateY(0);}
.btn--ghost{
  border-color:var(--brand-1);
  color:var(--brand-1);
  background:transparent;
}
.btn--ghost:hover{background:rgba(46,26,71,.08);transform:translateY(-2px);}
.btn--sm{padding:11px 22px;font-size:14px;}
.btn--block{width:100%;}
.btn:focus-visible,a:focus-visible,button:focus-visible,input:focus-visible,select:focus-visible,textarea:focus-visible{
  outline:3px solid rgba(255,107,74,.45);
  outline-offset:2px;
}

.nav-toggle{
  display:none;
  width:44px;height:44px;
  border-radius:12px;
  border:1px solid var(--line);
  align-items:center;
  justify-content:center;
  flex-direction:column;
  gap:5px;
  margin-left:auto;
}
.nav-toggle__bar{display:block;width:20px;height:2px;border-radius:2px;background:var(--brand-1);transition:transform var(--ease),opacity var(--ease);}
.nav-toggle.is-open .nav-toggle__bar:nth-child(1){transform:translateY(7px) rotate(45deg);}
.nav-toggle.is-open .nav-toggle__bar:nth-child(2){opacity:0;}
.nav-toggle.is-open .nav-toggle__bar:nth-child(3){transform:translateY(-7px) rotate(-45deg);}

/* Hero */
.hero{
  position:relative;
  overflow:hidden;
  color:#fff;
  background:var(--brand-1);
}
.hero::before{
  content:"";
  position:absolute;inset:0;
  background-image:url(/assets/images/backpic/back-1.png);
  background-size:cover;
  background-position:center;
  opacity:.55;
}
.hero::after{
  content:"";
  position:absolute;inset:0;
  background:linear-gradient(135deg,rgba(46,26,71,.94) 0%,rgba(58,33,96,.85) 46%,rgba(122,75,201,.74) 100%);
}
.hero__inner{
  position:relative;
  z-index:2;
  padding:96px 0 88px;
}
.hero__copy{max-width:640px;}
.hero__eyebrow{
  display:inline-flex;
  align-items:center;
  gap:8px;
  padding:7px 16px;
  border-radius:999px;
  border:1px solid rgba(255,255,255,.34);
  background:rgba(255,255,255,.1);
  font-size:13px;
  letter-spacing:.6px;
  color:#F3ECFF;
  margin-bottom:22px;
}
.hero__eyebrow i{color:var(--mint);font-size:11px;}
.hero__title{
  color:#fff;
  font-size:52px;
  line-height:1.15;
  letter-spacing:.5px;
  margin-bottom:20px;
}
.hero__sub{
  font-size:19px;
  line-height:1.7;
  color:#E4D9F6;
  max-width:32em;
  margin-bottom:32px;
}
.hero__actions{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:40px;}
.hero .btn--ghost{border-color:rgba(255,255,255,.6);color:#fff;}
.hero .btn--ghost:hover{background:rgba(255,255,255,.14);}
.hero__stats{
  display:flex;
  gap:12px;
  overflow-x:auto;
  padding-bottom:6px;
  scrollbar-width:thin;
}
.stat{
  flex:0 0 auto;
  min-width:132px;
  padding:14px 18px;
  border-radius:18px;
  border:1px solid rgba(255,255,255,.28);
  background:rgba(255,255,255,.08);
  backdrop-filter:blur(2px);
}
.stat__num{display:block;font-size:22px;font-weight:700;color:#fff;letter-spacing:.4px;}
.stat__num em{font-style:normal;color:var(--accent);}
.stat__label{display:block;font-size:13px;color:#CFC3E8;margin-top:2px;}
.hero__visual{
  border-radius:var(--radius-card);
  overflow:hidden;
  border:1px solid rgba(255,255,255,.24);
  box-shadow:0 24px 60px rgba(20,10,40,.4);
}
.hero__visual img{width:100%;aspect-ratio:4/3;object-fit:cover;}

/* 通用板块 */
.section{padding:96px 0;}
.section--white{background:#fff;}
.section--tight{padding-top:72px;}
.section__head{max-width:720px;margin-bottom:48px;}
.section__head--center{margin-left:auto;margin-right:auto;text-align:center;}
.eyebrow{
  display:inline-block;
  font-size:13px;
  font-weight:600;
  letter-spacing:1.2px;
  color:var(--brand-3);
  margin-bottom:14px;
}
.section__title{
  font-size:30px;
  line-height:1.3;
  margin-bottom:16px;
  position:relative;
}
.section__title::after{
  content:"";
  display:block;
  width:56px;height:4px;
  border-radius:4px;
  background:var(--grad-brand);
  margin-top:16px;
}
.section__head--center .section__title::after{margin-left:auto;margin-right:auto;}
.section__desc{font-size:17px;color:var(--muted);line-height:1.8;max-width:44em;}

/* 图文介绍 */
.split__text h2{font-size:28px;line-height:1.35;margin-bottom:20px;}
.split__text p{color:var(--muted);font-size:17px;line-height:1.85;max-width:44em;}
.split__media{
  border-radius:var(--radius-img);
  overflow:hidden;
  box-shadow:var(--shadow);
}
.split__media img{width:100%;aspect-ratio:16/11;object-fit:cover;transition:transform var(--ease);}
.split__media:hover img{transform:scale(1.03);}
.check-list{margin-top:26px;}
.check-list li{
  position:relative;
  padding-left:34px;
  margin-bottom:14px;
  color:var(--ink);
  font-size:16px;
  line-height:1.7;
}
.check-list li::before{
  content:"";
  position:absolute;
  left:0;top:8px;
  width:16px;height:16px;
  border-radius:5px;
  background:var(--grad-brand);
}
.check-list li::after{
  content:"";
  position:absolute;
  left:5px;top:12px;
  width:6px;height:3px;
  border-left:2px solid #fff;
  border-bottom:2px solid #fff;
  transform:rotate(-45deg);
}

/* 步骤卡片 */
.step-card{
  position:relative;
  height:100%;
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  padding:30px 28px;
  box-shadow:var(--shadow);
  transition:transform var(--ease),box-shadow var(--ease),border-color var(--ease);
}
.step-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover);border-color:rgba(122,75,201,.35);}
.step-card__no{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  width:44px;height:44px;
  border-radius:14px;
  background:var(--grad-brand);
  color:#fff;
  font-size:17px;
  font-weight:700;
  margin-bottom:18px;
  box-shadow:0 10px 22px rgba(58,33,96,.2);
}
.step-card__title{font-size:19px;line-height:1.5;margin-bottom:10px;}
.step-card__text{color:var(--muted);font-size:15.5px;line-height:1.75;margin:0;}

/* 场景卡片 */
.scene-card{
  height:100%;
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  padding:26px 24px;
  transition:transform var(--ease),box-shadow var(--ease);
}
.scene-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover);}
.scene-card__icon{
  width:46px;height:46px;
  border-radius:14px;
  display:flex;align-items:center;justify-content:center;
  background:rgba(122,75,201,.12);
  color:var(--brand-3);
  font-size:18px;
  margin-bottom:16px;
}
.scene-card h3{font-size:17px;line-height:1.5;margin-bottom:8px;}
.scene-card p{color:var(--muted);font-size:15px;line-height:1.7;margin:0;}

/* 时间线 */
.timeline{position:relative;margin-top:8px;}
.timeline::before{
  content:"";
  position:absolute;
  left:19px;top:14px;bottom:14px;
  width:2px;
  background:linear-gradient(180deg,rgba(122,75,201,.55),rgba(255,107,74,.35));
}
.timeline__item{
  position:relative;
  padding:0 0 30px 62px;
}
.timeline__item:last-child{padding-bottom:0;}
.timeline__dot{
  position:absolute;
  left:0;top:2px;
  width:40px;height:40px;
  border-radius:50%;
  background:#fff;
  border:2px solid var(--brand-3);
  color:var(--brand-1);
  font-size:15px;
  font-weight:700;
  display:flex;align-items:center;justify-content:center;
  box-shadow:0 6px 16px rgba(46,26,71,.12);
}
.timeline__item:first-child .timeline__dot{background:var(--grad-brand);color:#fff;border-color:transparent;}
.timeline__body h3{font-size:18px;line-height:1.5;margin-bottom:8px;}
.timeline__body p{color:var(--muted);font-size:15.5px;line-height:1.8;margin:0;}
.timeline__side{
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  padding:28px 26px;
  box-shadow:var(--shadow);
}
.timeline__side h3{font-size:19px;margin-bottom:14px;}
.badge-row{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:18px;}
.badge{
  display:inline-flex;
  align-items:center;
  gap:7px;
  padding:8px 14px;
  border-radius:999px;
  border:1px solid var(--line);
  background:#FAF8F5;
  font-size:13.5px;
  color:var(--muted);
}
.badge b{color:var(--accent);font-size:15px;font-weight:700;}
.badge--mint b{color:#159C81;}

/* 提示列表 */
.tip-item{
  display:flex;
  gap:16px;
  align-items:flex-start;
  background:var(--card);
  border:1px solid var(--line);
  border-radius:18px;
  padding:20px 22px;
  margin-bottom:14px;
  transition:border-color var(--ease),transform var(--ease);
}
.tip-item:hover{border-color:rgba(255,107,74,.4);transform:translateX(3px);}
.tip-item i{color:var(--accent);font-size:16px;margin-top:5px;}
.tip-item strong{display:block;font-size:16px;margin-bottom:4px;}
.tip-item span{color:var(--muted);font-size:15px;line-height:1.75;}

/* FAQ */
.faq{margin-top:8px;}
.faq-item{
  background:var(--card);
  border:1px solid var(--line);
  border-radius:20px;
  margin-bottom:12px;
  overflow:hidden;
  transition:border-color var(--ease),box-shadow var(--ease);
}
.faq-item:hover{border-color:rgba(122,75,201,.35);}
.faq-item.is-open{border-color:rgba(122,75,201,.5);box-shadow:var(--shadow);}
.faq-q{
  width:100%;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:18px;
  padding:20px 24px;
  text-align:left;
  font-size:17px;
  font-weight:600;
  color:var(--ink);
  position:relative;
}
.faq-item.is-open .faq-q::before{
  content:"";
  position:absolute;
  left:0;top:14px;bottom:14px;
  width:4px;
  border-radius:0 4px 4px 0;
  background:var(--grad-brand);
}
.faq-plus{
  flex:0 0 auto;
  width:28px;height:28px;
  border-radius:50%;
  background:rgba(122,75,201,.12);
  color:var(--brand-3);
  display:flex;align-items:center;justify-content:center;
  font-size:13px;
  transition:transform var(--ease),background var(--ease),color var(--ease);
}
.faq-item.is-open .faq-plus{transform:rotate(45deg);background:var(--accent);color:#fff;}
.faq-a{
  max-height:0;
  overflow:hidden;
  transition:max-height var(--ease);
}
.faq-item.is-open .faq-a{max-height:360px;}
.faq-a__inner{
  padding:0 24px 22px;
  color:var(--muted);
  font-size:15.5px;
  line-height:1.85;
}

/* CTA 表单 */
.cta{
  background:var(--grad-brand);
  border-radius:32px;
  padding:56px 48px;
  color:#fff;
  position:relative;
  overflow:hidden;
}
.cta::before{
  content:"";
  position:absolute;
  right:-80px;top:-80px;
  width:280px;height:280px;
  border-radius:50%;
  background:rgba(255,107,74,.22);
}
.cta::after{
  content:"";
  position:absolute;
  left:-60px;bottom:-90px;
  width:220px;height:220px;
  border-radius:50%;
  background:rgba(47,214,180,.16);
}
.cta__grid{position:relative;z-index:2;}
.cta h2{color:#fff;font-size:28px;line-height:1.35;margin-bottom:14px;}
.cta p{color:#DCCFF4;font-size:16px;line-height:1.8;margin-bottom:0;}
.cta__list{margin-top:22px;}
.cta__list li{
  display:flex;align-items:flex-start;gap:10px;
  color:#E8DEF8;font-size:15px;line-height:1.75;margin-bottom:10px;
}
.cta__list li i{color:var(--mint);font-size:13px;margin-top:6px;}

.form{
  background:rgba(255,255,255,.96);
  border-radius:24px;
  padding:30px 28px;
  box-shadow:0 20px 48px rgba(20,10,40,.28);
}
.form__row{margin-bottom:16px;}
.form__label{display:block;font-size:13px;color:var(--muted);margin-bottom:7px;}
.form__input,.form__select,.form__textarea{
  width:100%;
  min-height:52px;
  padding:13px 16px;
  border-radius:var(--radius-sm);
  border:1.5px solid var(--line);
  background:#FDFCFA;
  font-size:15px;
  color:var(--ink);
  transition:border-color var(--ease),box-shadow var(--ease),background var(--ease);
  outline:none;
}
.form__textarea{min-height:112px;resize:vertical;line-height:1.7;}
.form__input:focus,.form__select:focus,.form__textarea:focus{
  border-color:var(--brand-3);
  background:#fff;
  box-shadow:0 0 0 4px rgba(122,75,201,.16);
}
.form__hint{font-size:13px;color:var(--muted);margin:12px 0 0;line-height:1.7;}
.form__msg{
  display:none;
  margin-top:14px;
  padding:12px 16px;
  border-radius:var(--radius-sm);
  background:rgba(47,214,180,.14);
  border:1px solid rgba(47,214,180,.5);
  color:#127A64;
  font-size:14px;
  line-height:1.7;
}
.form__msg.is-show{display:block;}

/* 页脚 */
.site-footer{
  background:var(--grad-brand);
  color:#E6DCF6;
  padding:72px 0 28px;
  margin-top:96px;
}
.footer__grid{
  display:grid;
  grid-template-columns:1.6fr 1fr 1fr 1fr;
  gap:44px;
  padding-bottom:44px;
  border-bottom:1px solid rgba(255,255,255,.16);
}
.footer__brand .logo{margin-bottom:18px;}
.footer__brand .logo__text{color:#fff;}
.footer__brand p{
  font-size:14.5px;
  line-height:1.9;
  color:#CDBDE6;
  margin:0;
  max-width:34em;
}
.footer__col h4{
  color:#fff;
  font-size:15px;
  font-weight:600;
  margin-bottom:18px;
  letter-spacing:.6px;
}
.footer__col ul li{margin-bottom:11px;}
.footer__col ul li a{
  font-size:14.5px;
  color:#CDBDE6;
  display:inline-block;
  transition:color var(--ease),transform var(--ease);
}
.footer__col ul li a:hover{color:var(--accent);transform:translateX(2px);}
.footer__bottom{
  display:flex;
  flex-wrap:wrap;
  justify-content:space-between;
  gap:10px;
  padding-top:22px;
  font-size:13px;
  line-height:1.9;
  color:#B6A6D2;
}

/* 响应式 */
@media (max-width:1199px){
  .hero__title{font-size:44px;}
  .section__title{font-size:26px;}
  .split__text h2{font-size:25px;}
  .cta{padding:48px 36px;}
}

@media (max-width:1023px){
  .container{padding:0 24px;}
  .section{padding:72px 0;}
  .hero__inner{padding:72px 0 64px;}
  .hero__title{font-size:36px;}
  .hero__sub{font-size:17px;}
  .footer__grid{grid-template-columns:1fr 1fr;gap:34px;}
  .header__inner{min-height:64px;gap:16px;}
  .site-header{position:sticky;}
  .nav-toggle{display:flex;}
  .header__actions{display:none;}
  .main-nav{
    position:fixed;
    left:0;right:0;top:64px;bottom:0;
    background:#fff;
    flex-direction:column;
    align-items:stretch;
    gap:0;
    padding:18px 24px 32px;
    margin:0;
    overflow-y:auto;
    transform:translateY(-10px);
    opacity:0;
    visibility:hidden;
    transition:transform var(--ease),opacity var(--ease),visibility var(--ease);
    box-shadow:0 20px 40px rgba(46,26,71,.14);
  }
  .main-nav.is-open{transform:none;opacity:1;visibility:visible;}
  .main-nav__link{
    padding:17px 4px;
    font-size:17px;
    border-radius:0;
    border-bottom:1px solid var(--line);
  }
  .main-nav__link.is-active::after{left:4px;right:auto;width:28px;bottom:8px;}
  .main-nav__cta{
    display:inline-flex;
    margin-top:22px;
    width:100%;
  }
  .timeline__side{margin-top:32px;}
}

@media (max-width:767px){
  body{font-size:16px;}
  .hero__title{font-size:31px;letter-spacing:.3px;}
  .hero__sub{font-size:16px;margin-bottom:26px;}
  .section__title{font-size:23px;}
  .split__text h2{font-size:22px;}
  .step-card{padding:24px 22px;}
  .cta{padding:38px 24px;border-radius:26px;}
  .cta h2{font-size:22px;}
  .form{padding:24px 20px;}
  .footer__grid{grid-template-columns:1fr;gap:30px;}
  .footer__bottom{flex-direction:column;}
  .site-footer{margin-top:72px;padding-top:56px;}
  .split__media{margin-top:28px;}
}

@media (max-width:639px){
  .container{padding:0 20px;}
  .section{padding:56px 0;}
  .hero__inner{padding:56px 0 52px;}
  .section__head{margin-bottom:32px;}
  .logo__text{font-size:14px;letter-spacing:0;}
  .logo__mark{width:32px;height:32px;padding:7px;}
  .topbar__inner{gap:14px;font-size:12.5px;padding:8px 0;}
  .hero__title{font-size:27px;}
  .hero__actions{gap:10px;}
  .hero__actions .btn{width:100%;}
  .stat{min-width:118px;padding:12px 14px;}
  .step-card__no{width:40px;height:40px;border-radius:12px;font-size:16px;}
  .timeline__item{padding-left:54px;}
  .timeline__dot{width:36px;height:36px;font-size:14px;}
  .timeline::before{left:17px;}
  .faq-q{padding:17px 18px;font-size:16px;}
  .faq-a__inner{padding:0 18px 18px;}
  .cta{border-radius:22px;}
  .footer__brand p{font-size:14px;}
}

/* roulang page: category2 */
:root{
  --ink:#2E1A47;
  --ink-deep:#1D1130;
  --brand-grad:linear-gradient(135deg,#3A2160 0%,#7A4BC9 100%);
  --accent:#FF6B4A;
  --mint:#2FD6B4;
  --bg:#F7F4EF;
  --card:#FFFFFF;
  --line:#E7E1DA;
  --text:#1B1420;
  --muted:#5A5266;
  --disabled:#B8B2C0;
  --r-card:24px;
  --r-img:20px;
  --r-sm:12px;
  --shadow:0 8px 24px rgba(46,26,71,.08);
  --shadow-hover:0 18px 44px rgba(46,26,71,.16);
  --ease:240ms cubic-bezier(.2,.7,.3,1);
  --container:1200px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:17px;
  line-height:1.75;
  color:var(--text);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;}
a{color:var(--ink);text-decoration:none;transition:color var(--ease),background var(--ease),border-color var(--ease);}
a:hover,a:focus{color:var(--accent);}
button{font-family:inherit;}
h1,h2,h3,h4{margin:0;font-weight:700;line-height:1.25;color:var(--text);letter-spacing:.4px;}
p{margin:0 0 1em;}
ul{margin:0;padding:0;list-style:none;}
input,textarea,select{font-family:inherit;font-size:16px;}

.container{
  width:100%;
  max-width:var(--container);
  margin:0 auto;
  padding:0 32px;
}
.section{padding:96px 0;}
.section--tight{padding:72px 0;}
.section--gray{background:#F2EDE6;}
.section-head{margin-bottom:48px;max-width:760px;}
.section-head--center{margin-left:auto;margin-right:auto;text-align:center;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  padding:6px 16px;border-radius:999px;
  background:rgba(122,75,201,.10);
  color:#5B31A0;
  font-size:13px;font-weight:600;letter-spacing:.6px;
  margin-bottom:20px;
}
.eyebrow i{font-size:11px;}
.section-title{font-size:30px;margin-bottom:16px;position:relative;padding-bottom:16px;}
.section-title::after{
  content:"";position:absolute;left:0;bottom:0;width:64px;height:4px;border-radius:4px;
  background:var(--brand-grad);
}
.section-head--center .section-title{padding-bottom:16px;}
.section-head--center .section-title::after{left:50%;transform:translateX(-50%);}
.section-sub{color:var(--muted);font-size:16px;line-height:1.8;max-width:46em;}

/* ---------- 顶部信息条 ---------- */
.topbar{
  background:var(--ink-deep);
  color:rgba(255,255,255,.86);
  font-size:13px;
  line-height:1.6;
}
.topbar__inner{
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  min-height:40px;padding:8px 32px;max-width:var(--container);margin:0 auto;
}
.topbar__item{display:inline-flex;align-items:center;gap:8px;}
.topbar__item i{color:var(--mint);font-size:12px;}
.topbar__link{color:#fff;border-bottom:1px dashed rgba(255,255,255,.42);padding-bottom:1px;}
.topbar__link:hover,.topbar__link:focus{color:var(--accent);border-bottom-color:var(--accent);}

/* ---------- 导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:#fff;
  border-bottom:1px solid var(--line);
  transition:box-shadow var(--ease);
}
.site-header.is-scrolled{box-shadow:0 6px 22px rgba(46,26,71,.10);}
.header__inner{
  display:flex;align-items:center;justify-content:space-between;gap:24px;
  min-height:76px;
}
.logo{display:inline-flex;align-items:center;gap:12px;flex-shrink:0;}
.logo__mark{
  width:38px;height:38px;border-radius:12px;
  background:var(--brand-grad);
  display:inline-flex;align-items:center;justify-content:center;gap:3px;
  box-shadow:0 6px 16px rgba(122,75,201,.32);
}
.logo__mark i{display:block;width:4px;border-radius:2px;background:#fff;}
.logo__mark i:nth-child(1){height:12px;opacity:.75;}
.logo__mark i:nth-child(2){height:20px;}
.logo__mark i:nth-child(3){height:15px;opacity:.85;}
.logo__text{font-size:17px;font-weight:700;color:var(--ink);letter-spacing:.5px;}
.logo:hover .logo__text,.logo:focus .logo__text{color:var(--accent);}

.main-nav{display:flex;align-items:center;gap:6px;}
.main-nav__link{
  position:relative;
  padding:10px 14px;
  font-size:15px;font-weight:500;color:var(--muted);
  border-radius:10px;
}
.main-nav__link::after{
  content:"";position:absolute;left:14px;right:14px;bottom:2px;height:2px;border-radius:2px;
  background:var(--brand-grad);transform:scaleX(0);transform-origin:left;transition:transform var(--ease);
}
.main-nav__link:hover,.main-nav__link:focus{color:var(--ink);background:rgba(122,75,201,.06);}
.main-nav__link:hover::after,.main-nav__link:focus::after{transform:scaleX(1);}
.main-nav__link.is-active{color:var(--ink);font-weight:600;}
.main-nav__link.is-active::after{transform:scaleX(1);}

.header__actions{display:flex;align-items:center;gap:14px;flex-shrink:0;}
.header__ghost{
  font-size:14px;font-weight:600;color:var(--ink);
  padding:8px 6px;border-bottom:2px solid transparent;
}
.header__ghost:hover,.header__ghost:focus{color:var(--accent);border-bottom-color:var(--accent);}

.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:14px 30px;border-radius:999px;border:1.5px solid transparent;
  font-size:16px;font-weight:600;line-height:1.2;cursor:pointer;
  transition:transform var(--ease),box-shadow var(--ease),background var(--ease),color var(--ease),border-color var(--ease);
}
.btn--primary{background:var(--brand-grad);color:#fff;box-shadow:0 8px 22px rgba(90,49,160,.26);}
.btn--primary:hover,.btn--primary:focus{color:#fff;transform:translateY(-2px);box-shadow:0 12px 28px rgba(255,107,74,.30);filter:brightness(1.06);}
.btn--primary:active{transform:translateY(0);box-shadow:0 6px 16px rgba(90,49,160,.24);}
.btn--outline{background:transparent;border-color:var(--ink);color:var(--ink);}
.btn--outline:hover,.btn--outline:focus{background:rgba(46,26,71,.08);color:var(--ink);}
.btn--ghost-light{background:transparent;border-color:rgba(255,255,255,.7);color:#fff;}
.btn--ghost-light:hover,.btn--ghost-light:focus{background:rgba(255,255,255,.14);color:#fff;border-color:#fff;}
.btn--sm{padding:11px 22px;font-size:14px;}
.btn:focus-visible{outline:3px solid rgba(255,107,74,.45);outline-offset:2px;}

.nav-toggle{
  display:none;
  width:44px;height:44px;border-radius:12px;border:1.5px solid var(--line);background:#fff;
  align-items:center;justify-content:center;cursor:pointer;color:var(--ink);font-size:18px;
}
.nav-toggle:hover{border-color:var(--ink);}

.mobile-panel{
  display:none;
  position:fixed;inset:0;z-index:90;
  background:linear-gradient(160deg,#2E1A47 0%,#4A2B78 100%);
  padding:28px 24px 32px;
  flex-direction:column;
}
.mobile-panel.is-open{display:flex;}
.mobile-panel__head{display:flex;align-items:center;justify-content:space-between;margin-bottom:32px;}
.mobile-panel__head .logo__text{color:#fff;}
.mobile-panel__close{
  width:44px;height:44px;border-radius:12px;border:1px solid rgba(255,255,255,.35);
  background:transparent;color:#fff;font-size:18px;cursor:pointer;
}
.mobile-panel__links{display:flex;flex-direction:column;gap:6px;flex:1;}
.mobile-panel__links a{
  color:#fff;font-size:18px;font-weight:600;padding:16px 4px;
  border-bottom:1px solid rgba(255,255,255,.14);
}
.mobile-panel__links a:hover,.mobile-panel__links a:focus,.mobile-panel__links a.is-active{color:var(--accent);}
.mobile-panel__cta{margin-top:24px;}
.mobile-panel__cta .btn{width:100%;}

/* ---------- Hero ---------- */
.hero{position:relative;overflow:hidden;background:var(--ink-deep);color:#fff;}
.hero__bg{
  position:absolute;inset:0;
  background:url('/assets/images/backpic/back-2.webp') center/cover no-repeat;
  opacity:.55;
}
.hero__veil{
  position:absolute;inset:0;
  background:linear-gradient(135deg,rgba(46,26,71,.95) 0%,rgba(58,33,96,.88) 45%,rgba(122,75,201,.72) 100%);
}
.hero__inner{position:relative;z-index:2;padding:104px 0 88px;}
.hero__grid{display:grid;grid-template-columns:7fr 5fr;gap:56px;align-items:center;}
.hero .eyebrow{background:rgba(255,255,255,.14);color:#F3EBFF;}
.hero h1{
  font-size:56px;line-height:1.15;color:#fff;letter-spacing:.5px;
  margin-bottom:20px;
}
.hero h1 .hl{
  background:linear-gradient(120deg,#FFB59F 0%,#FF6B4A 100%);
  -webkit-background-clip:text;background-clip:text;color:transparent;
}
.hero__lead{
  font-size:18px;line-height:1.8;color:rgba(255,255,255,.86);
  max-width:36em;margin-bottom:32px;
}
.hero__actions{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:36px;}
.hero__stats{
  display:flex;gap:14px;overflow-x:auto;padding-bottom:6px;
  scrollbar-width:thin;
}
.stat-pill{
  flex:0 0 auto;
  display:flex;align-items:center;gap:12px;
  padding:12px 20px;border-radius:999px;
  border:1px solid rgba(255,255,255,.34);
  background:rgba(255,255,255,.08);
  backdrop-filter:blur(2px);
}
.stat-pill b{font-size:22px;font-weight:700;color:#fff;font-family:Inter,system-ui,sans-serif;letter-spacing:.5px;}
.stat-pill span{font-size:13px;color:rgba(255,255,255,.78);white-space:nowrap;}

.hero__visual{position:relative;}
.hero__visual img{
  width:100%;border-radius:var(--r-img);
  box-shadow:0 24px 60px rgba(20,8,40,.42);
}
.hero__badge{
  position:absolute;left:-18px;bottom:26px;
  background:#fff;border-radius:18px;padding:16px 20px;
  box-shadow:0 18px 40px rgba(20,8,40,.28);
  display:flex;align-items:center;gap:12px;
  max-width:270px;
}
.hero__badge i{
  width:38px;height:38px;border-radius:12px;flex:0 0 auto;
  display:inline-flex;align-items:center;justify-content:center;
  background:rgba(47,214,180,.14);color:#1FA98C;font-size:16px;
}
.hero__badge strong{display:block;font-size:14px;color:var(--ink);}
.hero__badge span{display:block;font-size:12px;color:var(--muted);}

/* ---------- 准备清单 ---------- */
.prep__grid{display:grid;grid-template-columns:5fr 7fr;gap:48px;align-items:center;}
.prep__media img{border-radius:var(--r-img);box-shadow:var(--shadow);}
.check-list{display:grid;gap:16px;}
.check-item{
  display:flex;gap:16px;align-items:flex-start;
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);
  padding:22px 24px;box-shadow:var(--shadow);
  transition:transform var(--ease),box-shadow var(--ease);
}
.check-item:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover);}
.check-item__num{
  flex:0 0 auto;width:34px;height:34px;border-radius:10px;
  display:inline-flex;align-items:center;justify-content:center;
  background:rgba(122,75,201,.12);color:#5B31A0;
  font-weight:700;font-size:14px;font-family:Inter,system-ui,sans-serif;
}
.check-item h3{font-size:18px;margin-bottom:6px;}
.check-item p{margin:0;font-size:15px;color:var(--muted);line-height:1.75;}

/* ---------- 时间线 ---------- */
.timeline-wrap{display:grid;grid-template-columns:8fr 4fr;gap:48px;align-items:start;}
.timeline{position:relative;}
.timeline::before{
  content:"";position:absolute;left:27px;top:14px;bottom:26px;width:2px;
  background:linear-gradient(180deg,#7A4BC9 0%,rgba(122,75,201,.06) 100%);
}
.timeline__item{position:relative;padding-left:76px;margin-bottom:32px;}
.timeline__item:last-child{margin-bottom:0;}
.timeline__dot{
  position:absolute;left:0;top:0;width:56px;height:56px;border-radius:50%;
  display:flex;align-items:center;justify-content:center;
  background:#fff;border:2px solid rgba(122,75,201,.30);
  color:#5B31A0;font-weight:700;font-size:18px;font-family:Inter,system-ui,sans-serif;
  box-shadow:0 8px 20px rgba(46,26,71,.10);
}
.timeline__item:first-child .timeline__dot{background:var(--brand-grad);color:#fff;border-color:transparent;}
.timeline__card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);
  padding:24px 28px;box-shadow:var(--shadow);
  transition:transform var(--ease),box-shadow var(--ease),border-color var(--ease);
}
.timeline__card:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover);border-color:rgba(122,75,201,.35);}
.timeline__card h3{font-size:19px;margin-bottom:10px;}
.timeline__card p{margin:0 0 10px;font-size:15px;color:var(--muted);}
.timeline__card p:last-child{margin-bottom:0;}
.timeline__meta{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;color:#5B31A0;background:rgba(122,75,201,.09);
  padding:5px 12px;border-radius:999px;margin-top:4px;
}

.aside-card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);
  padding:28px;box-shadow:var(--shadow);position:sticky;top:104px;
}
.aside-card h3{font-size:19px;margin-bottom:14px;}
.aside-card p{font-size:15px;color:var(--muted);}
.aside-badges{display:grid;gap:12px;margin:18px 0 20px;}
.badge-row{
  display:flex;align-items:center;justify-content:space-between;gap:12px;
  padding:12px 16px;border-radius:var(--r-sm);
  background:#F7F4EF;border:1px solid var(--line);
}
.badge-row span{font-size:14px;color:var(--muted);}
.badge-row b{font-size:17px;color:var(--ink);font-family:Inter,system-ui,sans-serif;}
.badge-dot{display:inline-flex;align-items:center;gap:7px;font-size:13px;color:#1FA98C;}
.badge-dot::before{content:"";width:8px;height:8px;border-radius:50%;background:var(--mint);}

/* ---------- 验证方式 ---------- */
.verify-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.verify-card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);
  padding:30px 28px;box-shadow:var(--shadow);
  transition:transform var(--ease),box-shadow var(--ease);
  display:flex;flex-direction:column;gap:12px;
}
.verify-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover);}
.verify-card__icon{
  width:48px;height:48px;border-radius:14px;
  display:inline-flex;align-items:center;justify-content:center;
  background:var(--brand-grad);color:#fff;font-size:20px;
}
.verify-card h3{font-size:19px;}
.verify-card p{margin:0;font-size:15px;color:var(--muted);}
.verify-card ul{display:grid;gap:8px;margin-top:4px;}
.verify-card li{
  position:relative;padding-left:18px;font-size:14px;color:var(--muted);
}
.verify-card li::before{
  content:"";position:absolute;left:0;top:.62em;width:7px;height:7px;border-radius:2px;
  background:var(--accent);transform:rotate(45deg);
}

/* ---------- 常见卡点 ---------- */
.trap-list{display:grid;gap:14px;}
.trap-item{
  display:grid;grid-template-columns:200px 1fr;gap:24px;align-items:center;
  background:#fff;border:1px solid var(--line);border-radius:var(--r-sm);
  padding:20px 24px;transition:border-color var(--ease),box-shadow var(--ease);
}
.trap-item:hover{border-color:rgba(122,75,201,.35);box-shadow:var(--shadow);}
.trap-item__label{
  font-size:15px;font-weight:600;color:var(--ink);
  display:inline-flex;align-items:center;gap:10px;
}
.trap-item__label i{color:var(--accent);font-size:14px;}
.trap-item__desc{margin:0;font-size:15px;color:var(--muted);}

/* ---------- FAQ ---------- */
.faq-section{background:#F2EDE6;}
.faq-list{margin:0;border:none;background:transparent;}
.faq-item{
  border:none;background:#fff;border-radius:20px;margin-bottom:12px;
  box-shadow:var(--shadow);overflow:hidden;
  transition:box-shadow var(--ease);
}
.faq-item:hover{box-shadow:var(--shadow-hover);}
.faq-item.is-active{box-shadow:var(--shadow-hover);}
.faq-q{
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:22px 26px;font-size:17px;font-weight:600;color:var(--ink);
  border:none;position:relative;
}
.faq-q::before{display:none !important;}
.faq-q::after{
  content:"\2b";font-family:Inter,system-ui,sans-serif;
  font-size:22px;font-weight:400;color:var(--accent);
  transition:transform var(--ease);line-height:1;
}
.faq-item.is-active .faq-q::after{transform:rotate(45deg);}
.faq-item.is-active .faq-q{color:#5B31A0;}
.faq-item.is-active .faq-q::before{
  content:"";display:block !important;
  position:absolute;left:0;top:18px;bottom:18px;width:4px;border-radius:0 4px 4px 0;
  background:var(--brand-grad);
}
.faq-a{padding:0 26px 24px !important;border:none !important;background:transparent !important;}
.faq-a p{margin:0;font-size:15px;color:var(--muted);line-height:1.85;}

/* ---------- CTA ---------- */
.cta-band{
  border-radius:28px;
  background:var(--brand-grad);
  color:#fff;padding:56px 56px;
  display:grid;grid-template-columns:7fr 5fr;gap:40px;align-items:center;
  box-shadow:0 24px 60px rgba(46,26,71,.24);
}
.cta-band h2{color:#fff;font-size:30px;margin-bottom:14px;}
.cta-band p{color:rgba(255,255,255,.86);font-size:16px;margin:0;}
.cta-band__actions{display:flex;flex-wrap:wrap;gap:14px;justify-content:flex-end;}
.cta-note{margin-top:16px;font-size:13px;color:rgba(255,255,255,.72);}

/* ---------- 页脚 ---------- */
.site-footer{
  background:linear-gradient(150deg,#2E1A47 0%,#3A2160 55%,#4A2B78 100%);
  color:rgba(255,255,255,.82);padding:72px 0 32px;margin-top:96px;
}
.footer__grid{display:grid;grid-template-columns:2fr 1fr 1fr 1fr;gap:40px;}
.footer__brand .logo{margin-bottom:18px;}
.footer__brand .logo__text{color:#fff;}
.footer__brand p{font-size:14px;line-height:1.9;color:rgba(255,255,255,.72);max-width:34em;margin:0;}
.footer__col h4{color:#fff;font-size:15px;font-weight:600;margin-bottom:16px;letter-spacing:.6px;}
.footer__col ul{display:grid;gap:10px;}
.footer__col a{
  color:rgba(255,255,255,.74);font-size:14px;display:inline-block;
  transition:color var(--ease),transform var(--ease);
}
.footer__col a:hover,.footer__col a:focus{color:var(--accent);transform:translateX(2px);}
.footer__bottom{
  margin-top:44px;padding-top:22px;
  border-top:1px solid rgba(255,255,255,.14);
  display:flex;flex-wrap:wrap;justify-content:space-between;gap:10px;
  font-size:13px;line-height:1.9;color:rgba(255,255,255,.62);
}

/* ---------- 响应式 ---------- */
@media (max-width:1199px){
  .hero h1{font-size:44px;}
  .cta-band{padding:48px 40px;}
}
@media (max-width:1023px){
  .container{padding:0 24px;}
  .section{padding:72px 0;}
  .section--tight{padding:56px 0;}
  .main-nav,.header__ghost{display:none;}
  .nav-toggle{display:inline-flex;}
  .hero__inner{padding:80px 0 68px;}
  .hero__grid{grid-template-columns:1fr;gap:40px;}
  .hero h1{font-size:40px;}
  .hero__visual{max-width:560px;}
  .prep__grid{grid-template-columns:1fr;gap:32px;}
  .timeline-wrap{grid-template-columns:1fr;gap:32px;}
  .aside-card{position:static;}
  .verify-grid{grid-template-columns:1fr;}
  .cta-band{grid-template-columns:1fr;padding:44px 32px;}
  .cta-band__actions{justify-content:flex-start;}
  .footer__grid{grid-template-columns:1fr 1fr;gap:32px;}
  .trap-item{grid-template-columns:1fr;gap:8px;}
}
@media (max-width:767px){
  body{font-size:16px;}
  .topbar__inner{flex-direction:column;align-items:flex-start;gap:4px;padding:10px 20px;}
  .container{padding:0 20px;}
  .section{padding:56px 0;}
  .section-title{font-size:23px;}
  .hero__inner{padding:64px 0 56px;}
  .hero h1{font-size:32px;}
  .hero__lead{font-size:16px;}
  .hero__actions{gap:12px;}
  .hero__actions .btn{width:100%;}
  .hero__badge{position:static;margin-top:18px;max-width:none;}
  .timeline__item{padding-left:60px;margin-bottom:24px;}
  .timeline::before{left:19px;}
  .timeline__dot{width:40px;height:40px;font-size:15px;}
  .timeline__card{padding:20px 20px;}
  .cta-band{padding:36px 22px;border-radius:24px;}
  .cta-band h2{font-size:24px;}
  .cta-band__actions .btn{width:100%;}
  .footer__grid{grid-template-columns:1fr;}
  .site-footer{padding:56px 0 28px;margin-top:64px;}
  .footer__bottom{flex-direction:column;gap:6px;}
}

/* roulang page: category3 */
:root{
  --ink:#2E1A47;
  --ink-deep:#1B1420;
  --violet:#7A4BC9;
  --violet-dark:#3A2160;
  --grad:linear-gradient(135deg,#3A2160 0%,#7A4BC9 100%);
  --accent:#FF6B4A;
  --accent-soft:#FFB39E;
  --mint:#2FD6B4;
  --bg:#F7F4EF;
  --card:#FFFFFF;
  --line:#E7E1DA;
  --text:#1B1420;
  --muted:#5A5266;
  --disabled:#B8B2C0;
  --r-card:24px;
  --r-img:20px;
  --r-sm:12px;
  --shadow:0 8px 24px rgba(46,26,71,.08);
  --shadow-hover:0 18px 44px rgba(46,26,71,.16);
  --trans:240ms cubic-bezier(.2,.7,.3,1);
}

*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  padding:0;
  background:var(--bg);
  color:var(--text);
  font-family:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:17px;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{display:block;max-width:100%;height:auto;border-style:none}
a{color:var(--ink);text-decoration:none;background-color:transparent;transition:color var(--trans)}
a:focus-visible,button:focus-visible,input:focus-visible,textarea:focus-visible,select:focus-visible{
  outline:3px solid rgba(255,107,74,.45);
  outline-offset:2px;
  border-radius:6px;
}
h1,h2,h3,h4,h5,h6{margin:0;color:var(--ink);font-weight:700;line-height:1.28}
p{margin:0 0 1em}
ul,ol{margin:0;padding:0;list-style:none}
button{font-family:inherit}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 32px}
.grid-x{margin-left:0;margin-right:0}
.section{padding:96px 0}
.section--tint{background:#FFFFFF}
.section--deep{background:var(--ink);color:#F0EAF8}

/* ============ 顶部信息条 ============ */
.topline{background:var(--ink);color:#EBE3F6;font-size:13px;line-height:1.8}
.topline__inner{
  display:flex;flex-wrap:wrap;gap:8px 24px;
  align-items:center;justify-content:space-between;
  min-height:42px;padding-top:6px;padding-bottom:6px;
}
.topline__link{color:var(--accent-soft);font-size:13px;text-decoration:none;white-space:nowrap}
.topline__link:hover{color:#fff;text-decoration:underline;text-underline-offset:3px}

/* ============ 头部导航 ============ */
.site-header{
  position:sticky;top:0;z-index:60;
  background:#FFFFFF;
  border-bottom:1px solid var(--line);
  transition:box-shadow var(--trans);
}
.site-header.is-scrolled{box-shadow:0 6px 20px rgba(46,26,71,.10)}
.header__inner{
  display:flex;align-items:center;justify-content:space-between;
  gap:20px;min-height:76px;
}
.logo{display:inline-flex;align-items:center;gap:12px;flex:0 0 auto}
.logo__mark{
  width:38px;height:38px;border-radius:12px;flex:0 0 auto;
  background:var(--grad);
  display:inline-flex;align-items:center;justify-content:center;gap:3px;
  box-shadow:0 6px 16px rgba(122,75,201,.28);
}
.logo__mark i{display:block;width:4px;border-radius:2px;background:#fff}
.logo__mark i:nth-child(1){height:10px;opacity:.7}
.logo__mark i:nth-child(2){height:18px}
.logo__mark i:nth-child(3){height:13px;opacity:.85}
.logo__text{font-size:17px;font-weight:700;color:var(--ink);letter-spacing:.5px;white-space:nowrap}

.main-nav{display:flex;align-items:center;gap:4px;flex-wrap:nowrap}
.main-nav__link{
  position:relative;
  padding:10px 12px;border-radius:8px;
  font-size:15px;font-weight:500;color:var(--muted);
  white-space:nowrap;
  transition:color var(--trans),background var(--trans);
}
.main-nav__link:hover{color:var(--ink);background:rgba(46,26,71,.05)}
.main-nav__link.is-active{color:var(--ink);font-weight:700}
.main-nav__link.is-active::after{
  content:"";position:absolute;left:12px;right:12px;bottom:2px;height:2px;
  border-radius:2px;background:var(--grad);
}
.header__actions{display:flex;align-items:center;gap:16px;flex:0 0 auto}
.header__text-link{font-size:15px;font-weight:500;color:var(--ink);white-space:nowrap}
.header__text-link:hover{text-decoration:underline;text-underline-offset:4px;text-decoration-color:var(--accent)}
.mobile-nav__cta{display:none}

.nav-toggle{
  display:none;width:46px;height:46px;flex:0 0 auto;
  border:1px solid var(--line);border-radius:12px;background:#fff;
  align-items:center;justify-content:center;cursor:pointer;
}
.nav-toggle span{display:block;position:relative;width:20px;height:2px;border-radius:2px;background:var(--ink);transition:background var(--trans)}
.nav-toggle span::before,.nav-toggle span::after{
  content:"";position:absolute;left:0;width:20px;height:2px;border-radius:2px;
  background:var(--ink);transition:transform var(--trans);
}
.nav-toggle span::before{top:-6px}
.nav-toggle span::after{top:6px}
body.nav-open .nav-toggle span{background:transparent}
body.nav-open .nav-toggle span::before{transform:translateY(6px) rotate(45deg)}
body.nav-open .nav-toggle span::after{transform:translateY(-6px) rotate(-45deg)}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:14px 30px;border-radius:999px;border:0;cursor:pointer;
  font-size:16px;font-weight:600;line-height:1.2;text-align:center;
  transition:transform var(--trans),box-shadow var(--trans),background var(--trans),color var(--trans),filter var(--trans);
}
.btn--primary{background:var(--grad);color:#fff;box-shadow:0 10px 24px rgba(122,75,201,.22)}
.btn--primary:hover{color:#fff;transform:translateY(-2px);box-shadow:0 12px 28px rgba(255,107,74,.28);filter:brightness(1.06)}
.btn--primary:active{transform:translateY(0)}
.btn--ghost{background:transparent;color:var(--ink);border:1.5px solid var(--ink)}
.btn--ghost:hover{background:rgba(46,26,71,.08);color:var(--ink);transform:translateY(-2px)}
.btn--ghost:active{transform:translateY(0)}
.btn--ghost-light{color:#fff;border-color:rgba(255,255,255,.6)}
.btn--ghost-light:hover{background:rgba(255,255,255,.14);color:#fff;border-color:#fff}
.btn--sm{padding:11px 22px;font-size:15px}
.btn--block{width:100%}
.btn[disabled],.btn.is-disabled{opacity:.5;cursor:not-allowed;transform:none;box-shadow:none}

/* ============ Hero ============ */
.hero{position:relative;overflow:hidden;background:var(--ink)}
.hero__bg{
  position:absolute;inset:0;
  background-image:url('/assets/images/backpic/back-1.png');
  background-size:cover;background-position:center;
  opacity:.42;
}
.hero__veil{
  position:absolute;inset:0;
  background:linear-gradient(135deg,rgba(46,26,71,.94) 0%,rgba(58,33,96,.84) 46%,rgba(122,75,201,.74) 100%);
}
.hero__inner{position:relative;z-index:2;padding-top:104px;padding-bottom:96px}
.hero__copy{max-width:560px}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  padding:8px 16px;margin-bottom:22px;border-radius:999px;
  border:1px solid rgba(255,255,255,.35);background:rgba(255,255,255,.10);
  color:#F3EDFB;font-size:13px;font-weight:500;letter-spacing:1px;
}
.eyebrow::before{content:"";width:7px;height:7px;border-radius:50%;background:var(--mint)}
.hero h1{color:#fff;font-size:44px;line-height:1.15;letter-spacing:.5px;font-weight:700}
.hero__sub{font-size:19px;line-height:1.8;color:#E7DFF5;margin:20px 0 30px;max-width:520px}
.hero__actions{display:flex;flex-wrap:wrap;gap:16px;margin-bottom:38px}
.hero__stats{display:flex;gap:14px;flex-wrap:wrap}
.stat{
  display:flex;flex-direction:column;gap:4px;
  min-width:132px;padding:16px 22px;border-radius:18px;
  border:1px solid rgba(255,255,255,.28);background:rgba(255,255,255,.08);
}
.stat__num{font-size:26px;font-weight:700;line-height:1.1;color:#fff;font-family:Inter,system-ui,-apple-system,sans-serif}
.stat__label{font-size:13px;color:#D9CEEC;line-height:1.5}
.hero__visual{position:relative;margin-top:8px}
.hero__visual img{
  width:100%;aspect-ratio:16/10;object-fit:cover;
  border-radius:var(--r-card);
  border:1px solid rgba(255,255,255,.18);
  box-shadow:0 28px 60px rgba(20,10,35,.45);
}
.hero__tag{
  position:absolute;left:-14px;bottom:26px;
  display:flex;align-items:center;gap:10px;
  padding:14px 20px;border-radius:18px;background:#fff;color:var(--ink);
  font-size:14px;font-weight:600;box-shadow:var(--shadow-hover);
}
.hero__tag .dot{width:9px;height:9px;border-radius:50%;background:var(--mint);flex:0 0 auto}

/* ============ 通用板块标题 ============ */
.section__head{max-width:760px;margin-bottom:52px}
.section__head--center{margin-left:auto;margin-right:auto;text-align:center}
.kicker{
  display:inline-block;margin-bottom:14px;
  font-size:13px;font-weight:600;letter-spacing:2px;color:var(--accent);
}
.section__head h2{
  position:relative;padding-left:18px;
  font-size:30px;line-height:1.32;margin-bottom:16px;
}
.section__head h2::before{
  content:"";position:absolute;left:0;top:7px;bottom:7px;width:5px;
  border-radius:4px;background:var(--grad);
}
.section__head--center h2{padding-left:0}
.section__head--center h2::before{display:none}
.section__head p{color:var(--muted);font-size:16.5px;line-height:1.85;margin:0;max-width:46em}

/* ============ 对照卡 ============ */
.compare-list{display:grid;gap:20px}
.compare-card{
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  overflow:hidden;
  box-shadow:var(--shadow);
  transition:box-shadow var(--trans),transform var(--trans);
}
.compare-card:hover{box-shadow:var(--shadow-hover);transform:translateY(-4px)}
.compare-card__head{
  display:flex;align-items:center;gap:14px;
  padding:20px 28px;
  background:linear-gradient(90deg,rgba(46,26,71,.06),rgba(122,75,201,.03));
  border-bottom:1px solid var(--line);
}
.compare-card__no{
  width:34px;height:34px;flex:0 0 auto;border-radius:50%;
  background:var(--grad);color:#fff;
  font-size:14px;font-weight:700;font-family:Inter,system-ui,sans-serif;
  display:flex;align-items:center;justify-content:center;
}
.compare-card__label{font-size:17px;font-weight:700;color:var(--ink)}
.compare-card__hint{margin-left:auto;font-size:13px;color:var(--muted);white-space:nowrap}
.compare-card__body{display:grid;grid-template-columns:1fr 1fr}
.compare-col{padding:24px 28px}
.compare-col + .compare-col{border-left:1px dashed var(--line)}
.compare-col h4{display:flex;align-items:center;gap:9px;font-size:15px;font-weight:700;margin-bottom:10px}
.compare-col h4 i{font-size:14px}
.compare-col--web h4{color:var(--ink)}
.compare-col--web h4 i{color:var(--violet)}
.compare-col--app h4{color:#B5401F}
.compare-col--app h4 i{color:var(--accent)}
.compare-col p{font-size:15.5px;line-height:1.85;color:var(--muted);margin:0}

/* ============ 选择建议卡 ============ */
.pick-card{
  display:flex;flex-direction:column;gap:14px;height:100%;
  padding:30px 28px;
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  box-shadow:var(--shadow);
  transition:box-shadow var(--trans),transform var(--trans);
}
.pick-card:hover{box-shadow:var(--shadow-hover);transform:translateY(-4px)}
.pick-card__tag{
  align-self:flex-start;
  padding:6px 14px;border-radius:999px;
  background:rgba(122,75,201,.10);
  color:var(--ink);font-size:13px;font-weight:600;
}
.pick-card h3{font-size:20px;line-height:1.4}
.pick-card p{font-size:15.5px;line-height:1.85;color:var(--muted);margin:0}
.pick-card__foot{
  margin-top:auto;padding-top:16px;
  border-top:1px dashed var(--line);
  font-size:14px;font-weight:600;color:var(--ink);
}
.pick-card__foot span{color:var(--accent)}

/* ============ 图文区块 ============ */
.split-figure{
  width:100%;aspect-ratio:4/3;object-fit:cover;
  border-radius:var(--r-img);
  box-shadow:var(--shadow-hover);
}
.split-copy h2{font-size:28px;line-height:1.35;margin-bottom:18px}
.split-copy > p{color:var(--muted);font-size:16px;line-height:1.9;margin-bottom:22px}
.tick-list{display:grid;gap:12px}
.tick-list li{
  position:relative;padding-left:26px;
  font-size:15.5px;line-height:1.8;color:var(--muted);
}
.tick-list li::before{
  content:"";position:absolute;left:0;top:.62em;
  width:9px;height:9px;border-radius:3px;
  background:var(--accent);opacity:.85;transform:rotate(45deg);
}

/* ============ 共用规则带 ============ */
.trust-band{
  display:grid;grid-template-columns:repeat(4,1fr);gap:28px;
  padding:38px 34px;
  background:#fff;border:1px solid var(--line);
  border-radius:var(--r-card);box-shadow:var(--shadow);
}
.trust-item{position:relative;padding-left:0}
.trust-item i{
  display:inline-flex;align-items:center;justify-content:center;
  width:40px;height:40px;margin-bottom:14px;border-radius:12px;
  background:rgba(46,26,71,.06);color:var(--ink);font-size:16px;
}
.trust-item h3{font-size:16.5px;margin-bottom:8px}
.trust-item p{font-size:14.5px;line-height:1.8;color:var(--muted);margin:0}
.trust-band .trust-item + .trust-item::before{
  content:"";position:absolute;left:-14px;top:4px;bottom:4px;width:1px;background:var(--line);
}

/* ============ FAQ ============ */
.faq-wrap{max-width:900px;margin:0 auto}
.accordion.faq-acc{margin:0;background:transparent;border:0;list-style:none}
.accordion.faq-acc .accordion-item{
  margin-bottom:12px;overflow:hidden;
  background:#fff;border:1px solid var(--line);
  border-radius:20px;box-shadow:var(--shadow);
  transition:border-color var(--trans),box-shadow var(--trans);
}
.accordion.faq-acc .accordion-item:hover{box-shadow:var(--shadow-hover)}
.accordion.faq-acc .accordion-item.is-active{border-color:rgba(122,75,201,.35)}
.accordion.faq-acc .accordion-title{
  position:relative;
  display:block;
  padding:22px 60px 22px 28px;
  background:transparent;
  border:0;
  color:var(--ink);
  font-size:17px;font-weight:600;line-height:1.6;
}
.accordion.faq-acc .accordion-title:hover,
.accordion.faq-acc .accordion-title:focus{background:rgba(46,26,71,.03)}
.accordion.faq-acc .accordion-title::before{
  content:"\002b";
  position:absolute;right:26px;top:50%;transform:translateY(-50%);
  color:var(--accent);font-size:20px;font-weight:600;line-height:1;
  transition:transform var(--trans);
}
.accordion.faq-acc .accordion-item.is-active .accordion-title::before{transform:translateY(-50%) rotate(45deg)}
.accordion.faq-acc .accordion-item.is-active .accordion-title::after{
  content:"";position:absolute;left:0;top:16px;bottom:16px;width:4px;
  border-radius:4px;background:var(--grad);
}
.accordion.faq-acc .accordion-content{
  padding:0 28px 24px;
  background:#fff;border:0;
  color:var(--muted);font-size:16px;line-height:1.85;
}
.accordion.faq-acc .accordion-content p{margin:0}

/* ============ CTA ============ */
.cta-panel{
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:32px;
  padding:52px 48px;
  background:var(--ink);
  border-radius:var(--r-card);
  box-shadow:0 20px 48px rgba(46,26,71,.22);
}
.cta-panel__text{max-width:600px}
.cta-panel h2{color:#fff;font-size:28px;line-height:1.35;margin-bottom:14px}
.cta-panel p{color:#DCD2EC;font-size:16px;line-height:1.85;margin:0}
.cta-panel__actions{display:flex;flex-wrap:wrap;gap:14px}

/* ============ 页脚 ============ */
.site-footer{
  margin-top:0;
  padding:84px 0 0;
  background:linear-gradient(135deg,#3A2160 0%,#7A4BC9 100%);
  color:#EDE6F7;
}
.footer__grid{
  display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:48px;
  padding-bottom:56px;border-bottom:1px solid rgba(255,255,255,.18);
}
.site-footer .logo__text{color:#fff}
.footer__brand p{
  margin-top:18px;max-width:34em;
  font-size:14.5px;line-height:1.9;color:rgba(237,230,247,.82);
}
.footer__col h4{font-size:15px;color:#fff;font-weight:700;margin-bottom:18px;letter-spacing:.5px}
.footer__col ul{display:grid;gap:12px}
.footer__col a{
  display:inline-block;
  font-size:14.5px;color:rgba(237,230,247,.82);
  transition:color var(--trans),transform var(--trans);
}
.footer__col a:hover{color:var(--accent-soft);transform:translateX(-2px)}
.footer__bottom{
  display:flex;flex-wrap:wrap;gap:10px 24px;justify-content:space-between;
  padding:26px 0 34px;
  font-size:13px;line-height:1.9;color:rgba(237,230,247,.72);
}

/* ============ 响应式 ============ */
@media (min-width:1200px){
  .hero h1{font-size:56px}
  .section__head h2{font-size:30px}
}
@media (max-width:1199px){
  .container{padding:0 28px}
  .hero h1{font-size:42px}
  .footer__grid{gap:36px}
}
@media (max-width:1023px){
  .container{padding:0 24px}
  .section{padding:72px 0}
  .header__actions{display:none}
  .nav-toggle{display:inline-flex}
  .main-nav{
    display:none;
    position:fixed;left:0;right:0;top:0;bottom:0;z-index:55;
    flex-direction:column;align-items:stretch;gap:0;
    padding:100px 24px 120px;
    background:#fff;overflow-y:auto;
  }
  body.nav-open{overflow:hidden}
  body.nav-open .main-nav{display:flex}
  .main-nav__link{
    padding:16px 4px;border-radius:0;
    border-bottom:1px solid var(--line);
    font-size:18px;color:var(--ink);
  }
  .main-nav__link:hover{background:transparent;color:var(--accent)}
  .main-nav__link.is-active::after{left:4px;right:auto;width:42px;bottom:8px}
  .mobile-nav__cta{
    display:inline-flex;margin-top:28px;
    padding:15px 30px;font-size:16px;
  }
  .hero__inner{padding-top:80px;padding-bottom:72px}
  .hero__copy{max-width:none}
  .hero__visual{margin-top:36px}
  .hero__tag{left:14px;bottom:16px}
  .section__head{margin-bottom:40px}
  .section__head h2{font-size:26px}
  .trust-band{grid-template-columns:repeat(2,1fr);gap:32px 28px}
  .trust-band .trust-item + .trust-item::before{display:none}
  .site-footer{padding-top:64px}
  .footer__grid{grid-template-columns:1fr 1fr;gap:36px 32px}
  .footer__brand{grid-column:1 / -1}
}
@media (max-width:767px){
  .hero h1{font-size:36px}
  .split-copy h2{font-size:24px}
  .cta-panel{padding:40px 28px}
  .cta-panel h2{font-size:24px}
}
@media (max-width:639px){
  body{font-size:16px}
  .container{padding:0 20px}
  .section{padding:56px 0}
  .topline__inner{justify-content:flex-start;min-height:0;padding:8px 0}
  .hero__inner{padding-top:64px;padding-bottom:56px}
  .hero h1{font-size:32px}
  .hero__sub{font-size:17px;margin:16px 0 26px}
  .hero__actions{flex-direction:column;align-items:stretch;gap:12px;margin-bottom:30px}
  .hero__actions .btn{width:100%}
  .hero__stats{flex-wrap:nowrap;overflow-x:auto;padding-bottom:10px;-webkit-overflow-scrolling:touch}
  .stat{flex:0 0 auto;min-width:140px}
  .hero__tag{position:static;margin-top:16px;box-shadow:var(--shadow)}
  .section__head h2{font-size:22px;padding-left:14px}
  .compare-card__head{flex-wrap:wrap;padding:18px 20px;gap:10px}
  .compare-card__hint{margin-left:0;width:100%;white-space:normal}
  .compare-card__body{grid-template-columns:1fr}
  .compare-col{padding:20px}
  .compare-col + .compare-col{border-left:0;border-top:1px dashed var(--line)}
  .pick-card{padding:24px 20px}
  .trust-band{grid-template-columns:1fr;padding:28px 22px}
  .accordion.faq-acc .accordion-title{padding:18px 52px 18px 20px;font-size:16px}
  .accordion.faq-acc .accordion-title::before{right:20px}
  .accordion.faq-acc .accordion-content{padding:0 20px 20px;font-size:15.5px}
  .cta-panel{flex-direction:column;align-items:flex-start;padding:34px 22px}
  .cta-panel__actions{width:100%;flex-direction:column}
  .cta-panel__actions .btn{width:100%}
  .footer__grid{grid-template-columns:1fr;gap:32px}
  .footer__bottom{flex-direction:column;gap:6px}
}

/* roulang page: category4 */
:root{
  --ink:#2E1A47;
  --ink-2:#3A2160;
  --brand:#7A4BC9;
  --grad-brand:linear-gradient(135deg,#3A2160 0%,#7A4BC9 100%);
  --accent:#FF6B4A;
  --mint:#2FD6B4;
  --bg:#F7F4EF;
  --card:#FFFFFF;
  --line:#E7E1DA;
  --text:#1B1420;
  --muted:#5A5266;
  --disabled:#B8B2C0;
  --r-card:24px;
  --r-img:20px;
  --r-sm:12px;
  --r-pill:999px;
  --sh-card:0 8px 24px rgba(46,26,71,.08);
  --sh-hover:0 18px 44px rgba(46,26,71,.16);
  --sh-accent:0 12px 28px rgba(255,107,74,.28);
  --ease:240ms cubic-bezier(.2,.7,.3,1);
  --sec:96px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:17px;
  line-height:1.75;
  color:var(--text);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border-radius:var(--r-img)}
a{color:var(--ink);text-decoration:none;transition:color var(--ease),background var(--ease),transform var(--ease)}
a:hover{color:var(--brand)}
button,input,select,textarea{font:inherit;color:inherit}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4{margin:0;font-weight:700;color:var(--ink);letter-spacing:.4px}
p{margin:0 0 1em}
p:last-child{margin-bottom:0}
:focus-visible{outline:3px solid rgba(255,107,74,.45);outline-offset:2px;border-radius:6px}

.container{width:100%;max-width:1200px;margin:0 auto;padding:0 32px}
.section{padding:var(--sec) 0}
.section--tight{padding:72px 0}
.section--plain{background:var(--bg)}
.section--white{background:#fff}
.section--dark{background:var(--grad-brand);color:#fff}
.section--dark h2,.section--dark h3{color:#fff}

.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  padding:7px 16px;border-radius:var(--r-pill);
  background:rgba(255,255,255,.14);border:1px solid rgba(255,255,255,.3);
  color:#fff;font-size:13px;font-weight:600;letter-spacing:.6px;
}
.eyebrow--light{background:rgba(122,75,201,.1);border-color:rgba(122,75,201,.25);color:var(--ink)}

.sec-head{max-width:760px;margin-bottom:44px}
.sec-head h2{font-size:30px;line-height:1.25;margin-bottom:14px;position:relative;padding-bottom:14px}
.sec-head h2::after{content:"";position:absolute;left:0;bottom:0;width:64px;height:4px;border-radius:4px;background:var(--grad-brand)}
.sec-head p{color:var(--muted);font-size:16px}
.sec-head--center{margin-left:auto;margin-right:auto;text-align:center}
.sec-head--center h2::after{left:50%;transform:translateX(-50%)}
.sec-head--on-dark p{color:rgba(255,255,255,.82)}
.sec-head--on-dark h2::after{background:linear-gradient(90deg,#FF6B4A,#2FD6B4)}

/* ============ 顶部信息条 ============ */
.topbar{background:var(--ink-2);color:rgba(255,255,255,.86);font-size:13px;line-height:1.6}
.topbar .container{display:flex;flex-wrap:wrap;gap:8px 24px;align-items:center;justify-content:space-between;min-height:40px;padding-top:6px;padding-bottom:6px}
.topbar__dot{display:inline-block;width:7px;height:7px;border-radius:50%;background:var(--mint);margin-right:7px;vertical-align:middle}
.topbar a{color:#fff;border-bottom:1px solid rgba(255,255,255,.35)}
.topbar a:hover{color:var(--accent);border-color:var(--accent)}

/* ============ Header ============ */
.site-header{
  position:sticky;top:0;z-index:80;
  background:rgba(255,255,255,.95);
  backdrop-filter:blur(12px);
  border-bottom:1px solid var(--line);
  transition:box-shadow var(--ease);
}
.site-header.is-scrolled{box-shadow:0 10px 30px rgba(46,26,71,.1)}
.header__inner{display:flex;align-items:center;gap:24px;height:76px}
.logo{display:inline-flex;align-items:center;gap:12px;flex-shrink:0}
.logo__mark{
  display:inline-flex;align-items:flex-end;gap:3px;
  width:36px;height:36px;padding:7px;border-radius:11px;
  background:var(--grad-brand);
  box-shadow:0 6px 16px rgba(46,26,71,.22);
}
.logo__mark i{display:block;flex:1;background:#fff;border-radius:2px;opacity:.92}
.logo__mark i:nth-child(1){height:44%}
.logo__mark i:nth-child(2){height:78%}
.logo__mark i:nth-child(3){height:58%}
.logo__text{font-size:18px;font-weight:700;color:var(--ink);letter-spacing:.5px;white-space:nowrap}
.main-nav{display:flex;align-items:center;gap:4px;margin:0 auto}
.main-nav__link{
  position:relative;display:inline-block;
  padding:9px 13px;border-radius:var(--r-pill);
  font-size:15px;font-weight:500;color:var(--muted);white-space:nowrap;
}
.main-nav__link:hover{color:var(--ink);background:rgba(122,75,201,.08)}
.main-nav__link.is-active{color:var(--ink);font-weight:600}
.main-nav__link.is-active::after{
  content:"";position:absolute;left:13px;right:13px;bottom:2px;height:2px;border-radius:2px;
  background:var(--grad-brand);
}
.header__actions{display:flex;align-items:center;gap:14px;flex-shrink:0}
.link-minor{font-size:15px;font-weight:500;color:var(--muted)}
.link-minor:hover{color:var(--accent)}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:14px 30px;border:0;border-radius:var(--r-pill);
  font-size:16px;font-weight:600;cursor:pointer;
  transition:transform var(--ease),box-shadow var(--ease),background var(--ease),color var(--ease),border-color var(--ease);
}
.btn--primary{background:var(--grad-brand);color:#fff;box-shadow:0 8px 22px rgba(46,26,71,.2)}
.btn--primary:hover{color:#fff;transform:translateY(-2px);box-shadow:var(--sh-accent);filter:brightness(1.06)}
.btn--primary:active{transform:translateY(0)}
.btn--accent{background:linear-gradient(135deg,#FF6B4A 0%,#FF8F6B 100%);color:#fff;box-shadow:0 10px 24px rgba(255,107,74,.28)}
.btn--accent:hover{color:#fff;transform:translateY(-2px);box-shadow:0 16px 34px rgba(255,107,74,.34);filter:brightness(1.04)}
.btn--accent:active{transform:translateY(0)}
.btn--ghost{background:transparent;border:1.5px solid rgba(46,26,71,.45);color:var(--ink)}
.btn--ghost:hover{background:rgba(46,26,71,.07);border-color:var(--ink);color:var(--ink);transform:translateY(-2px)}
.btn--ghost-light{background:transparent;border:1.5px solid rgba(255,255,255,.6);color:#fff}
.btn--ghost-light:hover{background:rgba(255,255,255,.14);color:#fff;transform:translateY(-2px)}
.btn--sm{padding:11px 22px;font-size:15px}
.btn--block{width:100%}
.btn[disabled],.btn.is-disabled{opacity:.5;cursor:not-allowed;transform:none!important;box-shadow:none}

.nav-toggle{
  display:none;width:44px;height:44px;border:1px solid var(--line);border-radius:12px;
  background:#fff;padding:11px 10px;cursor:pointer;
}
.nav-toggle span{display:block;height:2px;border-radius:2px;background:var(--ink);transition:transform var(--ease),opacity var(--ease)}
.nav-toggle span+span{margin-top:5px}
.nav-toggle.is-open span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.nav-toggle.is-open span:nth-child(2){opacity:0}
.nav-toggle.is-open span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}

.mobile-panel{
  position:fixed;inset:64px 0 0;z-index:75;
  background:#fff;padding:22px 20px 28px;
  display:none;flex-direction:column;gap:18px;
  overflow-y:auto;
}
.mobile-panel.is-open{display:flex}
.mobile-panel .main-nav{flex-direction:column;align-items:stretch;gap:6px;margin:0}
.mobile-panel .main-nav__link{padding:14px 16px;border-radius:14px;font-size:16px;background:var(--bg);color:var(--ink)}
.mobile-panel .main-nav__link.is-active{background:rgba(122,75,201,.12)}
.mobile-panel .main-nav__link.is-active::after{display:none}
.mobile-panel__foot{margin-top:auto;display:grid;gap:12px}

/* ============ Hero ============ */
.hero{position:relative;overflow:hidden;color:#fff;padding:104px 0 88px}
.hero__bg{
  position:absolute;inset:0;
  background-image:linear-gradient(120deg,rgba(46,26,71,.97) 0%,rgba(58,33,96,.9) 42%,rgba(122,75,201,.72) 100%),url('/assets/images/backpic/back-2.webp');
  background-size:cover;background-position:center;
}
.hero__glow{
  position:absolute;right:-160px;top:-120px;width:520px;height:520px;border-radius:50%;
  background:radial-gradient(circle,rgba(47,214,180,.28) 0%,rgba(47,214,180,0) 68%);
}
.hero__inner{position:relative;z-index:2}
.hero h1{color:#fff;font-size:52px;line-height:1.15;margin:22px 0 18px;max-width:15em}
.hero h1 .hl{color:#FFD8CE}
.hero__sub{font-size:19px;color:rgba(255,255,255,.86);max-width:36em;margin-bottom:30px}
.hero__actions{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:38px}
.badges{display:flex;gap:12px;overflow-x:auto;padding-bottom:6px;scrollbar-width:none}
.badges::-webkit-scrollbar{display:none}
.badge{
  flex:0 0 auto;display:flex;flex-direction:column;gap:2px;
  padding:12px 20px;border-radius:var(--r-pill);
  border:1px solid rgba(255,255,255,.34);background:rgba(255,255,255,.09);
  backdrop-filter:blur(4px);
}
.badge b{font-size:20px;font-weight:700;color:#fff;font-family:Inter,system-ui,sans-serif;letter-spacing:.5px}
.badge span{font-size:13px;color:rgba(255,255,255,.78)}
.hero__aside{display:flex;flex-direction:column;gap:18px}
.hero-card{
  background:rgba(255,255,255,.1);border:1px solid rgba(255,255,255,.22);
  border-radius:var(--r-card);padding:24px;backdrop-filter:blur(8px);
}
.hero-card h3{color:#fff;font-size:18px;margin-bottom:14px}
.hero-card ul{display:grid;gap:12px}
.hero-card li{display:flex;gap:10px;font-size:15px;color:rgba(255,255,255,.86);line-height:1.6}
.hero-card li::before{content:"";flex:0 0 auto;width:8px;height:8px;margin-top:8px;border-radius:50%;background:var(--mint)}

/* ============ 数据徽章组 ============ */
.metrics{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.metric{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-card);
  padding:28px 24px;box-shadow:var(--sh-card);
  transition:transform var(--ease),box-shadow var(--ease),border-color var(--ease);
}
.metric:hover{transform:translateY(-4px);box-shadow:var(--sh-hover);border-color:rgba(122,75,201,.35)}
.metric__num{
  font-family:Inter,system-ui,sans-serif;font-size:44px;font-weight:700;line-height:1.05;
  color:var(--accent);letter-spacing:.5px;
}
.metric__num small{font-size:17px;font-weight:600;color:var(--ink);margin-left:6px}
.metric h3{font-size:17px;margin:12px 0 8px}
.metric p{font-size:14.5px;color:var(--muted);line-height:1.7}

/* ============ 说明卡 ============ */
.panel{
  display:grid;grid-template-columns:1.05fr .95fr;gap:48px;align-items:center;
  background:#fff;border-radius:var(--r-card);border:1px solid var(--line);
  padding:40px;box-shadow:var(--sh-card);
}
.panel__media img{width:100%;aspect-ratio:16/10;object-fit:cover;border-radius:var(--r-img)}
.panel h2{font-size:28px;line-height:1.3;margin-bottom:16px}
.panel p{color:var(--muted);font-size:16px}
.panel__list{display:grid;gap:14px;margin-top:22px}
.panel__list li{display:flex;gap:12px;font-size:15.5px;color:var(--text)}
.panel__list li::before{
  content:"";flex:0 0 auto;width:10px;height:10px;margin-top:9px;border-radius:3px;
  background:var(--grad-brand);
}
.baseline{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;margin-top:36px}
.baseline__item{
  background:var(--bg);border:1px solid var(--line);border-radius:var(--r-card);
  padding:24px;position:relative;transition:transform var(--ease),box-shadow var(--ease),background var(--ease);
}
.baseline__item:hover{transform:translateY(-4px);background:#fff;box-shadow:var(--sh-hover)}
.baseline__idx{
  display:inline-flex;align-items:center;justify-content:center;
  width:34px;height:34px;border-radius:11px;margin-bottom:14px;
  background:var(--grad-brand);color:#fff;font-family:Inter,system-ui,sans-serif;
  font-size:15px;font-weight:700;
}
.baseline__item h3{font-size:17px;margin-bottom:8px}
.baseline__item p{font-size:14.5px;color:var(--muted);line-height:1.7}

/* ============ 信号对照 ============ */
.signals{display:grid;gap:14px}
.signal{
  display:grid;grid-template-columns:260px 1fr;gap:24px;align-items:start;
  background:#fff;border:1px solid var(--line);border-radius:var(--r-card);
  padding:24px 28px;box-shadow:var(--sh-card);
  transition:transform var(--ease),box-shadow var(--ease),border-color var(--ease);
}
.signal:hover{transform:translateY(-3px);box-shadow:var(--sh-hover);border-color:rgba(255,107,74,.35)}
.signal__tag{display:flex;align-items:center;gap:10px;font-size:16px;font-weight:600;color:var(--ink)}
.signal__tag::before{
  content:"";flex:0 0 auto;width:10px;height:10px;border-radius:50%;
  background:var(--accent);box-shadow:0 0 0 4px rgba(255,107,74,.15);
}
.signal p{font-size:15px;color:var(--muted)}
.signal--ok .signal__tag::before{background:var(--mint);box-shadow:0 0 0 4px rgba(47,214,180,.18)}

/* ============ 设备卡 ============ */
.devices{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.device{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-card);
  padding:28px;box-shadow:var(--sh-card);
  transition:transform var(--ease),box-shadow var(--ease);
}
.device:hover{transform:translateY(-4px);box-shadow:var(--sh-hover)}
.device__ico{
  width:48px;height:48px;border-radius:14px;display:flex;align-items:center;justify-content:center;
  background:rgba(122,75,201,.1);color:var(--brand);font-size:20px;font-weight:700;margin-bottom:18px;
  font-family:Inter,system-ui,sans-serif;
}
.device h3{font-size:18px;margin-bottom:10px}
.device p{font-size:15px;color:var(--muted);margin-bottom:16px}
.tags{display:flex;flex-wrap:wrap;gap:8px}
.tag{
  display:inline-block;padding:5px 13px;border-radius:var(--r-pill);
  background:var(--bg);border:1px solid var(--line);
  font-size:13px;color:var(--muted);
}
.tag--accent{background:rgba(255,107,74,.1);border-color:rgba(255,107,74,.25);color:#C74425}
.tag--mint{background:rgba(47,214,180,.12);border-color:rgba(47,214,180,.3);color:#12826C}

/* ============ FAQ ============ */
.accordion{border:0;background:transparent;margin:0}
.accordion-item{
  border:1px solid var(--line)!important;border-radius:var(--r-card);background:#fff;
  margin-bottom:12px;overflow:hidden;position:relative;
  box-shadow:var(--sh-card);transition:box-shadow var(--ease)
}
.accordion-item:hover{box-shadow:var(--sh-hover)}
.accordion-title{
  position:relative;border:0;background:#fff;color:var(--ink);
  font-size:17px;font-weight:600;padding:22px 62px 22px 26px;line-height:1.5;
}
.accordion-title:hover,.accordion-title:focus{background:#fff;color:var(--ink)}
.accordion-title::before{
  content:"+";border:0;width:auto;height:auto;position:absolute;right:26px;top:50%;
  transform:translateY(-50%);font-size:24px;font-weight:300;line-height:1;color:var(--accent);
  transition:transform var(--ease);
}
.accordion-item.is-active .accordion-title::before{transform:translateY(-50%) rotate(45deg)}
.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(--grad-brand);
}
.accordion-content{border:0;background:#fff;padding:0 62px 24px 26px;font-size:15.5px;color:var(--muted);line-height:1.85}

/* ============ 表单区 ============ */
.convert{
  background:var(--grad-brand);color:#fff;border-radius:var(--r-card);
  padding:48px;display:grid;grid-template-columns:1fr 1fr;gap:48px;
  box-shadow:0 22px 54px rgba(46,26,71,.22);
}
.convert h2{color:#fff;font-size:30px;line-height:1.3;margin-bottom:16px}
.convert .lead{color:rgba(255,255,255,.84);font-size:16px;margin-bottom:26px}
.convert__points{display:grid;gap:14px;margin-bottom:28px}
.convert__points li{display:flex;gap:11px;font-size:15px;color:rgba(255,255,255,.88)}
.convert__points li::before{content:"";flex:0 0 auto;width:8px;height:8px;margin-top:9px;border-radius:50%;background:var(--mint)}
.convert__meta{display:flex;flex-wrap:wrap;gap:10px}
.convert__meta span{
  padding:7px 15px;border-radius:var(--r-pill);border:1px solid rgba(255,255,255,.34);
  font-size:13px;color:rgba(255,255,255,.86);
}
.form-card{background:#fff;border-radius:var(--r-card);padding:32px;color:var(--text)}
.form-card h3{font-size:20px;margin-bottom:6px}
.form-card .hint{font-size:13px;color:var(--muted);margin-bottom:22px}
.field{margin-bottom:18px}
.field label{display:block;font-size:13px;color:var(--muted);margin-bottom:7px}
.field input,.field select,.field textarea{
  width:100%;min-height:52px;padding:13px 16px;
  background:#FCFBF9;border:1px solid var(--line);border-radius:var(--r-sm);
  font-size:15px;color:var(--text);transition:border-color var(--ease),box-shadow var(--ease),background var(--ease);
}
.field textarea{min-height:110px;resize:vertical;line-height:1.7}
.field input:focus,.field select:focus,.field textarea:focus{
  outline:none;background:#fff;border-color:var(--brand);box-shadow:0 0 0 4px rgba(122,75,201,.16);
}
.field.has-error input,.field.has-error select,.field.has-error textarea{border-color:#D93A2B;box-shadow:0 0 0 4px rgba(217,58,43,.12)}
.field__err{display:none;font-size:13px;color:#D93A2B;margin-top:6px}
.field.has-error .field__err{display:block}
.form-note{font-size:13px;color:var(--muted);margin-top:14px;line-height:1.7}
.form-success{
  display:none;margin-top:16px;padding:14px 18px;border-radius:var(--r-sm);
  background:rgba(47,214,180,.12);border:1px solid rgba(47,214,180,.36);
  color:#12826C;font-size:14.5px;
}
.form-success.is-visible{display:block}
.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:0 16px}

/* ============ 页脚 ============ */
.site-footer{background:linear-gradient(135deg,#2E1A47 0%,#3A2160 55%,#4A2A7A 100%);color:rgba(255,255,255,.82);padding:72px 0 26px}
.footer__grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:40px}
.footer__brand .logo__text{color:#fff}
.footer__brand p{font-size:14.5px;color:rgba(255,255,255,.72);margin-top:18px;line-height:1.85;max-width:34em}
.footer__col h4{color:#fff;font-size:16px;margin-bottom:16px}
.footer__col ul{display:grid;gap:11px}
.footer__col a{font-size:14.5px;color:rgba(255,255,255,.76)}
.footer__col a:hover{color:var(--accent);transform:translateX(-2px);display:inline-block}
.footer__bottom{
  margin-top:52px;padding-top:22px;border-top:1px solid rgba(255,255,255,.16);
  display:flex;flex-wrap:wrap;gap:8px 24px;justify-content:space-between;
  font-size:13px;line-height:1.9;color:rgba(255,255,255,.66);
}

/* ============ 响应式 ============ */
@media (max-width:1199px){
  .hero h1{font-size:46px}
  .footer__grid{grid-template-columns:1.4fr 1fr 1fr;gap:32px}
  .footer__brand{grid-column:1 / -1}
}
@media (max-width:1023px){
  :root{--sec:72px}
  .main-nav{display:none}
  .header__actions .link-minor{display:none}
  .nav-toggle{display:block}
  .header__inner{height:64px}
  .hero{padding:76px 0 66px}
  .hero h1{font-size:38px;max-width:none}
  .hero__sub{font-size:17px}
  .hero__aside{margin-top:34px}
  .sec-head h2{font-size:26px}
  .metrics{grid-template-columns:repeat(2,1fr)}
  .baseline{grid-template-columns:repeat(2,1fr)}
  .panel{grid-template-columns:1fr;gap:28px;padding:30px}
  .devices{grid-template-columns:1fr;gap:18px}
  .signal{grid-template-columns:1fr;gap:10px;padding:22px}
  .convert{grid-template-columns:1fr;gap:32px;padding:34px}
  .convert h2{font-size:26px}
  .section--tight{padding:56px 0}
}
@media (max-width:639px){
  :root{--sec:56px}
  body{font-size:16px}
  .container{padding:0 20px}
  .logo__text{font-size:16px}
  .topbar .container{font-size:12.5px}
  .hero{padding:64px 0 56px}
  .hero h1{font-size:30px;letter-spacing:.2px}
  .hero__sub{font-size:16px}
  .hero__actions{flex-direction:column;align-items:stretch}
  .hero__actions .btn{width:100%}
  .sec-head h2{font-size:22px}
  .metrics{grid-template-columns:1fr}
  .baseline{grid-template-columns:1fr}
  .metric__num{font-size:36px}
  .panel{padding:24px;border-radius:20px}
  .panel h2{font-size:22px}
  .form-grid{grid-template-columns:1fr}
  .form-card{padding:24px}
  .convert{padding:24px;border-radius:20px}
  .accordion-content{padding-right:26px}
  .footer__grid{grid-template-columns:1fr}
  .site-footer{padding:56px 0 24px}
}