/* roulang page: index */
:root{
  --ink-950:#0A0715;
  --ink-900:#140E28;
  --nebula-800:#241844;
  --nebula-700:#33235F;
  --violet-600:#6C46D8;
  --violet-500:#8563E8;
  --star-400:#F5B93F;
  --star-700:#8A5A00;
  --stardust-300:#6FE3D2;
  --paper-50:#FBF9FE;
  --paper-100:#F3F0F9;
  --line-200:#E3DEF0;
  --text-900:#16121F;
  --text-600:#5A5470;
  --text-400:#8F89A3;
  --err:#E4572E;
  --r-sm:8px;
  --r-md:14px;
  --r-lg:22px;
  --r-pill:999px;
  --shadow-1:0 1px 2px rgba(20,14,40,.06), 0 8px 24px rgba(20,14,40,.06);
  --shadow-2:0 24px 60px rgba(20,14,40,.14);
  --mono:'Inter',ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;
}
*,*::before,*::after{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--paper-50);
  color:var(--text-900);
  font-family:"Noto Sans SC","PingFang SC","HarmonyOS Sans","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  font-size:16px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}
img{max-width:100%;display:block;}
a{color:var(--violet-600);text-decoration:none;}
button,input{font-family:inherit;font-size:inherit;}
h1,h2,h3,h4,p,ul,ol,li,figure,fieldset{margin:0;padding:0;}
ul,ol{list-style:none;}
section[id]{scroll-margin-top:96px;}
:focus-visible{outline:2px solid var(--stardust-300);outline-offset:2px;}

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

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:46px;padding:0 24px;border-radius:var(--r-md);
  font-size:15px;font-weight:600;border:1px solid transparent;cursor:pointer;
  transition:transform .2s ease,box-shadow .2s ease,background-color .2s ease,border-color .2s ease,color .2s ease;
  white-space:nowrap;
}
.btn-primary{background:var(--violet-600);color:#fff;}
.btn-primary:hover{background:var(--violet-500);transform:translateY(-1px);box-shadow:var(--shadow-2);}
.btn-primary:active{transform:none;box-shadow:none;}
.btn-ghost{background:transparent;border-color:var(--line-200);color:var(--text-900);}
.btn-ghost:hover{border-color:var(--violet-600);background:var(--paper-100);}
.btn-star{background:var(--star-400);color:var(--ink-900);}
.btn-star:hover{background:#FFCB63;transform:translateY(-1px);box-shadow:var(--shadow-2);}
.btn-star:active{transform:none;box-shadow:none;}
.btn-ghost-light{background:transparent;border-color:rgba(255,255,255,.32);color:#fff;}
.btn-ghost-light:hover{border-color:var(--star-400);color:var(--star-400);}
.btn-sm{height:38px;padding:0 16px;font-size:14px;border-radius:12px;}
.btn-block{width:100%;}

/* ---------- 标签 ---------- */
.chip{
  display:inline-flex;align-items:center;height:32px;padding:0 14px;border-radius:var(--r-pill);
  font-size:14px;line-height:1.5;letter-spacing:.02em;
  border:1px solid var(--line-200);color:var(--text-600);background:transparent;
  transition:background-color .2s ease,border-color .2s ease,color .2s ease;white-space:nowrap;
}
.chip:hover{background:var(--paper-100);}
.chip.is-active{background:rgba(108,70,216,.10);border-color:rgba(108,70,216,.35);color:var(--violet-600);font-weight:600;}
.tag{
  display:inline-flex;align-items:center;height:22px;padding:0 9px;border-radius:var(--r-sm);
  font-size:12px;font-weight:600;letter-spacing:.02em;
  background:rgba(108,70,216,.10);color:var(--violet-600);
}
.tag-star{background:rgba(245,185,63,.16);color:var(--star-700);}

/* ---------- 顶部导航 ---------- */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:60;
  --h-text:#fff;--h-sub:rgba(255,255,255,.68);--h-border:rgba(255,255,255,.18);
  background:transparent;border-bottom:1px solid transparent;
  transition:background-color .3s ease,border-color .3s ease,box-shadow .3s ease;
}
.site-header.is-scrolled{
  background:rgba(251,249,254,.97);
  border-bottom-color:var(--line-200);
  box-shadow:var(--shadow-1);
  --h-text:var(--text-900);--h-sub:var(--text-400);--h-border:var(--line-200);
}
.header-inner{display:flex;align-items:center;gap:20px;min-height:72px;}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto;color:var(--h-text);}
.brand-mark{
  width:34px;height:34px;flex:0 0 34px;border-radius:11px;
  background:var(--nebula-800);border:1px solid rgba(245,185,63,.4);
  display:flex;align-items:center;justify-content:center;color:var(--star-400);
}
.brand-text{display:flex;flex-direction:column;line-height:1.2;}
.brand-name{font-size:17px;font-weight:700;letter-spacing:.01em;}
.brand-sub{font-size:12px;letter-spacing:.05em;color:var(--h-sub);}
.nav-chips{display:flex;align-items:center;gap:8px;margin-left:auto;}
.site-header .chip{color:var(--h-text);border-color:var(--h-border);opacity:.92;}
.site-header:not(.is-scrolled) .chip{color:rgba(255,255,255,.86);border-color:rgba(255,255,255,.22);}
.site-header:not(.is-scrolled) .chip:hover{background:rgba(255,255,255,.12);}
.site-header:not(.is-scrolled) .chip.is-active{color:#fff;background:rgba(245,185,63,.16);border-color:rgba(245,185,63,.5);}
.header-cta{display:flex;align-items:center;gap:14px;padding-left:16px;border-left:1px solid var(--h-border);flex:0 0 auto;}

/* ---------- Hero ---------- */
.hero{position:relative;overflow:hidden;background:var(--ink-950);color:#fff;padding:142px 0 88px;}
.hero-bg{
  position:absolute;inset:0;
  background-image:linear-gradient(rgba(10,7,21,.72),rgba(10,7,21,.68)),url('/assets/images/backpic/back-1.webp');
  background-size:cover;background-position:center;
}
.hero-stars{
  position:absolute;inset:0;opacity:.12;pointer-events:none;
  background-image:
    radial-gradient(2px 2px at 12% 22%,#fff,transparent),
    radial-gradient(1.5px 1.5px at 31% 68%,#fff,transparent),
    radial-gradient(2px 2px at 57% 16%,#fff,transparent),
    radial-gradient(1.5px 1.5px at 74% 54%,#fff,transparent),
    radial-gradient(2px 2px at 89% 76%,#fff,transparent),
    radial-gradient(1.5px 1.5px at 44% 42%,#fff,transparent),
    radial-gradient(2px 2px at 66% 86%,#fff,transparent);
}
.hero-inner{position:relative;z-index:2;display:grid;grid-template-columns:5fr 6fr;gap:60px;align-items:center;}
.hero-badge{
  display:inline-flex;align-items:center;gap:8px;height:30px;padding:0 14px;border-radius:var(--r-pill);
  background:rgba(245,185,63,.14);border:1px solid rgba(245,185,63,.35);color:var(--star-400);
  font-size:13px;letter-spacing:.02em;
}
.hero h1{margin-top:24px;font-size:clamp(30px,4.6vw,54px);line-height:1.22;font-weight:700;letter-spacing:-.015em;}
.hero-sub{margin-top:22px;max-width:560px;font-size:17px;line-height:1.85;color:rgba(255,255,255,.78);}
.hero-actions{margin-top:32px;display:flex;gap:14px;flex-wrap:wrap;}
.hero-tags{margin-top:28px;display:flex;gap:22px;flex-wrap:wrap;font-size:13.5px;color:rgba(255,255,255,.72);}
.hero-tags li{display:flex;align-items:center;gap:8px;}
.hero-tags svg{color:var(--stardust-300);flex:0 0 auto;}
.hero-visual{
  position:relative;border-radius:var(--r-lg);overflow:hidden;
  border:1px solid rgba(245,185,63,.35);
  box-shadow:0 30px 70px rgba(0,0,0,.48);
  background:var(--nebula-800);
}
.hero-visual img{width:100%;aspect-ratio:4/3;object-fit:cover;}
.hero-visual figcaption{
  position:absolute;left:0;right:0;bottom:0;padding:14px 18px;
  background:linear-gradient(transparent,rgba(10,7,21,.85));
  font-size:13px;color:rgba(255,255,255,.82);
}

/* ---------- 分区 ---------- */
.section{padding:96px 0;}
.section-alt{background:var(--paper-100);}
.section-head{max-width:760px;margin-bottom:40px;}
.section-head h2{font-size:clamp(23px,3vw,34px);line-height:1.3;font-weight:700;letter-spacing:-.01em;}
.section-head p{margin-top:14px;font-size:17px;line-height:1.85;color:var(--text-600);}
.section-head-row{max-width:none;display:flex;align-items:flex-end;justify-content:space-between;gap:24px;flex-wrap:wrap;}
.text-link{font-size:14px;font-weight:600;color:var(--violet-600);}
.text-link:hover{text-decoration:underline;text-underline-offset:3px;}

/* ---------- 卖点 ---------- */
.value-grid{display:grid;grid-template-columns:1fr 1fr;gap:0 56px;}
.value-col:nth-child(2){transform:translateY(26px);}
.value-item{display:flex;gap:18px;padding:26px 0;border-bottom:1px dashed var(--line-200);}
.value-icon{
  width:44px;height:44px;flex:0 0 44px;border-radius:12px;
  background:rgba(108,70,216,.10);
  display:flex;align-items:center;justify-content:center;color:var(--star-400);
}
.value-item h3{font-size:19px;line-height:1.45;font-weight:600;margin-bottom:8px;}
.value-item p{font-size:15px;line-height:1.8;color:var(--text-600);}

/* ---------- 演示 ---------- */
.demo-grid{display:grid;grid-template-columns:1fr 1fr;gap:64px;align-items:center;}
.demo-steps h2{font-size:clamp(23px,3vw,34px);line-height:1.3;font-weight:700;margin-bottom:28px;}
.step{display:flex;gap:18px;padding:20px 18px;border-left:3px solid transparent;border-radius:0 var(--r-md) var(--r-md) 0;transition:background-color .25s ease,border-color .25s ease;}
.step.is-active{border-left-color:var(--violet-600);background:linear-gradient(90deg,rgba(108,70,216,.07),rgba(108,70,216,0) 72%);}
.step-num{font-family:var(--mono);font-size:28px;line-height:1.1;color:var(--star-400);font-variant-numeric:tabular-nums;flex:0 0 46px;}
.step h3{font-size:19px;line-height:1.45;font-weight:600;margin-bottom:6px;}
.step p{font-size:15px;line-height:1.8;color:var(--text-600);}
.demo-shot{border-radius:var(--r-lg);overflow:hidden;box-shadow:var(--shadow-2);border:1px solid var(--line-200);background:var(--paper-100);}
.demo-shot img{width:100%;aspect-ratio:16/10;object-fit:cover;}

/* ---------- 最新信息 ---------- */
.news-list{display:flex;flex-direction:column;}
.news-row{
  display:flex;align-items:center;gap:22px;
  padding:20px 16px;margin:0 -16px;
  border-bottom:1px solid var(--line-200);
  transition:background-color .2s ease;
}
.news-row:first-child{border-top:1px solid var(--line-200);}
.news-row:hover{background:var(--paper-100);}
.news-row img{
  width:200px;height:120px;flex:0 0 200px;object-fit:cover;
  border-radius:var(--r-md);background:var(--paper-100);
}
.news-body{flex:1;min-width:0;}
.news-title{
  margin-top:10px;font-size:17px;font-weight:600;line-height:1.5;color:var(--text-900);
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.news-row:hover .news-title{color:var(--violet-600);}
.news-summary{
  margin-top:8px;font-size:14.5px;line-height:1.7;color:var(--text-600);
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.news-meta{margin-top:10px;font-size:13px;color:var(--text-400);letter-spacing:.02em;display:flex;gap:14px;flex-wrap:wrap;}
.news-arrow{flex:0 0 auto;color:var(--text-400);transition:transform .2s ease,color .2s ease;}
.news-row:hover .news-arrow{transform:translateX(4px);color:var(--violet-600);}
.empty-state{
  min-height:240px;padding:48px 24px;border:1px dashed var(--line-200);border-radius:var(--r-lg);
  background:#fff;display:flex;flex-direction:column;align-items:center;justify-content:center;text-align:center;gap:12px;
}
.empty-state svg{color:var(--text-400);}
.empty-state h3{font-size:16px;font-weight:600;}
.empty-state p{font-size:14px;color:var(--text-600);}

/* ---------- 证据 ---------- */
.proof-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:24px;}
.proof-card{
  background:#fff;border:1px solid var(--line-200);border-radius:var(--r-lg);
  padding:24px;box-shadow:var(--shadow-1);transition:box-shadow .25s ease,transform .25s ease,border-color .25s ease;
}
.proof-card:hover{box-shadow:var(--shadow-2);transform:translateY(-2px);border-color:rgba(108,70,216,.25);}
.proof-quote{font-size:15px;line-height:1.85;color:var(--text-600);}
.proof-person{margin-top:18px;display:flex;align-items:center;gap:12px;}
.proof-avatar{
  width:44px;height:44px;flex:0 0 44px;border-radius:50%;
  background:var(--paper-100);border:1px solid var(--line-200);
  display:flex;align-items:center;justify-content:center;font-weight:700;color:var(--violet-600);font-size:15px;
}
.proof-person strong{display:block;font-size:14.5px;font-weight:600;color:var(--text-900);}
.proof-person span{font-size:13px;color:var(--text-400);}
.stats-row{
  margin-top:40px;padding-top:32px;border-top:1px solid var(--line-200);
  display:grid;grid-template-columns:repeat(4,1fr);gap:24px;
}
.stat-num{font-family:var(--mono);font-size:32px;line-height:1.2;color:var(--star-400);font-variant-numeric:tabular-nums;font-weight:600;}
.stat-label{margin-top:6px;font-size:13px;color:var(--text-600);letter-spacing:.02em;}

/* ---------- 价格 ---------- */
.price-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;align-items:start;}
.price-card{
  background:#fff;border:1px solid var(--line-200);border-radius:var(--r-lg);
  padding:28px 24px;box-shadow:var(--shadow-1);position:relative;
  transition:box-shadow .25s ease,transform .25s ease,border-color .25s ease;
}
.price-card:hover{box-shadow:var(--shadow-2);}
.price-card.is-featured{transform:translateY(-16px);border-color:var(--violet-600);box-shadow:var(--shadow-2);}
.price-head{display:flex;align-items:center;justify-content:space-between;gap:12px;}
.price-name{font-size:17px;font-weight:700;}
.price-amount{margin-top:20px;display:flex;align-items:baseline;gap:6px;}
.price-amount .num{font-family:var(--mono);font-size:36px;line-height:1.1;font-weight:600;color:var(--text-900);font-variant-numeric:tabular-nums;}
.price-amount .unit{font-size:13px;color:var(--text-400);}
.price-desc{margin-top:12px;font-size:14px;line-height:1.7;color:var(--text-600);}
.price-list{margin-top:22px;display:flex;flex-direction:column;gap:12px;}
.price-list li{display:flex;gap:10px;font-size:14.5px;line-height:1.6;color:var(--text-600);}
.price-list svg{flex:0 0 auto;margin-top:5px;color:var(--violet-600);}
.price-card .btn{margin-top:26px;}
.price-note{margin-top:28px;font-size:13.5px;line-height:1.8;color:var(--text-400);}

/* ---------- FAQ ---------- */
.faq-wrap{max-width:820px;margin:0 auto;}
.faq-item{border-bottom:1px solid var(--line-200);}
.faq-item:first-child{border-top:1px solid var(--line-200);}
.faq-q{
  width:100%;display:flex;align-items:center;gap:16px;padding:20px 0;
  background:none;border:0;cursor:pointer;text-align:left;color:var(--text-900);
  font-size:17px;font-weight:600;line-height:1.5;
  transition:color .2s ease;
}
.faq-q:hover{color:var(--violet-600);}
.faq-num{font-family:var(--mono);font-size:13px;color:var(--text-400);flex:0 0 auto;font-variant-numeric:tabular-nums;}
.faq-icon{margin-left:auto;flex:0 0 auto;color:var(--text-400);transition:transform .25s ease;}
.faq-item.is-open .faq-icon{transform:rotate(45deg);color:var(--violet-600);}
.faq-a{display:none;padding:0 0 22px 40px;font-size:15px;line-height:1.85;color:var(--text-600);}
.faq-item.is-open .faq-a{display:block;}

/* ---------- 结尾 CTA ---------- */
.cta-band{position:relative;overflow:hidden;background:var(--ink-900);color:#fff;padding:80px 0;}
.cta-band::before{
  content:"";position:absolute;inset:0;opacity:.16;
  background-image:linear-gradient(rgba(20,14,40,.9),rgba(20,14,40,.94)),url('/assets/images/backpic/back-3.webp');
  background-size:cover;background-position:center;
}
.cta-band::after{
  content:"";position:absolute;top:-30%;right:-10%;width:560px;height:560px;border-radius:50%;
  background:radial-gradient(circle,rgba(108,70,216,.30),transparent 68%);
}
.cta-inner{position:relative;z-index:2;display:grid;grid-template-columns:1.05fr .95fr;gap:56px;align-items:center;}
.cta-copy h2{font-size:clamp(23px,3vw,34px);line-height:1.3;font-weight:700;}
.cta-copy p{margin-top:16px;font-size:16.5px;line-height:1.85;color:rgba(255,255,255,.76);max-width:520px;}
.cta-actions{margin-top:28px;display:flex;gap:14px;flex-wrap:wrap;}
.login-card{
  background:var(--paper-50);color:var(--text-900);border-radius:var(--r-lg);
  padding:28px;box-shadow:var(--shadow-2);border:1px solid rgba(255,255,255,.14);
}
.login-card h3{font-size:19px;font-weight:700;}
.login-card > p{margin-top:8px;font-size:13.5px;line-height:1.7;color:var(--text-600);}
.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:16px;margin-top:22px;}
.field{display:flex;flex-direction:column;gap:8px;}
.field-full{grid-column:1 / -1;}
.field label{font-size:13px;color:var(--text-600);letter-spacing:.02em;}
.field input{
  height:44px;padding:0 14px;border-radius:var(--r-md);
  background:#fff;border:1px solid var(--line-200);color:var(--text-900);
  transition:border-color .2s ease,box-shadow .2s ease;
}
.field input::placeholder{color:var(--text-400);}
.field input:focus{outline:none;border-color:var(--violet-600);box-shadow:0 0 0 3px rgba(108,70,216,.10);}
.form-foot{margin-top:18px;display:flex;flex-direction:column;gap:12px;}
.form-msg{font-size:13px;color:var(--violet-600);min-height:18px;}
.form-privacy{font-size:12.5px;line-height:1.7;color:var(--text-400);}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--ink-950);color:rgba(255,255,255,.66);padding:72px 0 28px;}
.site-footer .brand{--h-text:#fff;--h-sub:rgba(255,255,255,.55);}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:40px;}
.footer-about{margin-top:18px;font-size:14px;line-height:1.8;max-width:320px;}
.footer-title{color:#fff;font-size:15px;font-weight:700;margin-bottom:16px;letter-spacing:.02em;}
.footer-list li{margin-bottom:10px;}
.site-footer a{color:rgba(255,255,255,.66);font-size:14px;transition:color .2s ease;}
.site-footer a:hover{color:var(--star-400);}
.site-footer address{font-style:normal;font-size:14px;line-height:1.9;}
.footer-bottom{
  margin-top:48px;padding-top:20px;border-top:1px solid rgba(255,255,255,.12);
  display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13px;color:rgba(255,255,255,.5);
}

/* ---------- 浮动 CTA ---------- */
.float-cta{
  position:fixed;right:20px;bottom:20px;z-index:70;
  display:inline-flex;align-items:center;gap:8px;height:48px;padding:0 22px;
  border-radius:var(--r-pill);background:var(--star-400);color:var(--ink-900);
  font-size:15px;font-weight:700;box-shadow:var(--shadow-2);
  opacity:0;transform:translateY(8px);pointer-events:none;
  transition:opacity .3s ease,transform .3s ease,background-color .2s ease;
}
.float-cta.is-visible{opacity:1;transform:translateY(0);pointer-events:auto;}
.float-cta.is-shifted{transform:translateY(-16px);}
.float-cta:hover{background:#FFCB63;}

/* ---------- 响应式 ---------- */
@media (max-width:1199px){
  .hero-inner{gap:44px;}
}
@media (max-width:1023px){
  .container{padding:0 24px;}
  .section{padding:72px 0;}
  .hero{padding:132px 0 72px;}
  .hero-inner{grid-template-columns:1fr;gap:40px;}
  .hero-visual{max-width:640px;}
  .demo-grid{grid-template-columns:1fr;gap:40px;}
  .price-grid{grid-template-columns:1fr 1fr;}
  .price-card.is-featured{transform:none;border-color:var(--violet-600);}
  .cta-inner{grid-template-columns:1fr;gap:36px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:36px;}
}
@media (max-width:767px){
  .container{padding:0 16px;}
  .section{padding:56px 0;}
  .site-header{background:transparent;}
  .header-inner{flex-wrap:wrap;row-gap:8px;padding:10px 0;min-height:0;}
  .nav-chips{
    order:3;width:100%;margin-left:0;overflow-x:auto;padding-bottom:2px;
    scrollbar-width:none;-webkit-overflow-scrolling:touch;
  }
  .nav-chips::-webkit-scrollbar{display:none;}
  .header-cta{padding-left:12px;border-left-color:transparent;}
  .hero{padding:150px 0 64px;}
  .hero-visual{display:none;}
  .hero h1{margin-top:18px;}
  .hero-sub{font-size:16px;}
  .value-grid{grid-template-columns:1fr;gap:0;}
  .value-col:nth-child(2){transform:none;}
  .news-row{gap:14px;padding:18px 12px;margin:0 -12px;}
  .news-row img{width:96px;height:72px;flex:0 0 96px;}
  .news-title{font-size:16px;}
  .news-summary{display:none;}
  .proof-grid{grid-template-columns:1fr;}
  .stats-row{grid-template-columns:1fr 1fr;gap:20px;}
  .price-grid{grid-template-columns:1fr;}
  .form-grid{grid-template-columns:1fr;}
  .faq-a{padding-left:0;}
  .faq-q{font-size:16px;}
  .footer-grid{grid-template-columns:1fr;gap:32px;}
  .cta-band{padding:64px 0;}
  .float-cta{
    left:0;right:0;bottom:0;height:56px;border-radius:var(--r-lg) var(--r-lg) 0 0;
    padding:0 16px calc(0px + env(safe-area-inset-bottom,0px));justify-content:center;
  }
  .float-cta.is-shifted{transform:none;}
}
@media (max-width:519px){
  .hero{padding-top:142px;}
  .stats-row{grid-template-columns:1fr;}
  .login-card{padding:22px 18px;}
}

/* roulang page: article */
:root{
  --ink-950:#0A0715;
  --ink-900:#140E28;
  --nebula-800:#241844;
  --nebula-700:#33235F;
  --violet-600:#6C46D8;
  --violet-500:#8563E8;
  --star-400:#F5B93F;
  --stardust-300:#6FE3D2;
  --paper-50:#FBF9FE;
  --paper-100:#F3F0F9;
  --line-200:#E3DEF0;
  --text-900:#16121F;
  --text-600:#5A5470;
  --text-400:#8F89A3;
  --danger:#E4572E;
  --r-sm:8px;
  --r-md:14px;
  --r-lg:22px;
  --r-pill:999px;
  --shadow-1:0 1px 2px rgba(20,14,40,.06),0 8px 24px rgba(20,14,40,.06);
  --shadow-2:0 24px 60px rgba(20,14,40,.14);
  --pad-x:32px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  background:var(--paper-50);
  color:var(--text-900);
  font-family:'Noto Sans SC','PingFang SC','HarmonyOS Sans','Microsoft YaHei',sans-serif;
  font-size:16px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border:0}
a{color:inherit;text-decoration:none}
button{font-family:inherit;cursor:pointer}
input,textarea,select{font-family:inherit}
h1,h2,h3,h4,p,ul,ol,figure{margin:0;padding:0}
ul,ol{list-style:none}
:focus-visible{outline:2px solid var(--stardust-300);outline-offset:2px;border-radius:6px}
.container{
  width:100%;
  max-width:1200px;
  margin:0 auto;
  padding-left:var(--pad-x);
  padding-right:var(--pad-x);
}

/* ---------- header ---------- */
.site-header{
  position:sticky;
  top:0;
  z-index:60;
  background:rgba(251,249,254,.94);
  border-bottom:1px solid var(--line-200);
  transition:box-shadow .25s ease,background .25s ease;
}
.site-header.is-scrolled{box-shadow:var(--shadow-1)}
.header-inner{
  display:flex;
  align-items:center;
  gap:24px;
  min-height:72px;
}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto}
.brand-mark{
  width:34px;height:34px;border-radius:11px;
  display:flex;align-items:center;justify-content:center;
  background:linear-gradient(140deg,var(--violet-600),var(--nebula-800));
  color:var(--star-400);
  box-shadow:0 6px 16px rgba(108,70,216,.28);
}
.brand-text{display:flex;flex-direction:column;line-height:1.15}
.brand-name{font-size:16px;font-weight:700;letter-spacing:.01em}
.brand-sub{font-size:11px;color:var(--text-400);letter-spacing:.04em}
.nav-chips{
  display:flex;
  align-items:center;
  gap:6px;
  margin-left:8px;
  overflow-x:auto;
  scrollbar-width:none;
  -ms-overflow-style:none;
  padding:6px 0;
}
.nav-chips::-webkit-scrollbar{display:none}
.chip{
  flex:0 0 auto;
  height:32px;
  display:inline-flex;
  align-items:center;
  padding:0 14px;
  border-radius:var(--r-pill);
  border:1px solid var(--line-200);
  background:transparent;
  font-size:14px;
  color:var(--text-600);
  white-space:nowrap;
  transition:background .2s ease,color .2s ease,border-color .2s ease,box-shadow .2s ease;
}
.chip:hover{background:var(--paper-100);color:var(--text-900)}
.chip.is-active{
  background:rgba(108,70,216,.1);
  border-color:rgba(108,70,216,.35);
  color:var(--violet-600);
  font-weight:600;
}
.header-cta{
  margin-left:auto;
  padding-left:20px;
  border-left:1px solid var(--line-200);
  flex:0 0 auto;
}
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  height:46px;
  padding:0 24px;
  border-radius:var(--r-md);
  border:1px solid transparent;
  font-size:15px;
  font-weight:600;
  letter-spacing:.01em;
  transition:transform .18s ease,background .2s ease,border-color .2s ease,color .2s ease,box-shadow .2s ease,opacity .2s ease;
}
.btn-sm{height:38px;padding:0 18px;font-size:14px;border-radius:12px}
.btn-primary{background:var(--violet-600);color:#fff;box-shadow:0 8px 20px rgba(108,70,216,.24)}
.btn-primary:hover{background:var(--violet-500);transform:translateY(-1px);box-shadow:var(--shadow-2)}
.btn-primary:active{transform:none}
.btn-star{background:var(--star-400);color:var(--ink-900);box-shadow:0 8px 20px rgba(245,185,63,.28)}
.btn-star:hover{filter:brightness(1.06);transform:translateY(-1px)}
.btn-star:active{transform:none}
.btn-ghost{
  background:transparent;
  border-color:var(--line-200);
  color:var(--text-900);
}
.btn-ghost:hover{border-color:var(--violet-600);background:var(--paper-100)}
.btn:disabled,.btn[aria-disabled="true"]{opacity:.5;cursor:not-allowed}
.btn-block{width:100%}

/* ---------- breadcrumb ---------- */
.crumb-bar{
  border-bottom:1px solid var(--line-200);
  background:linear-gradient(180deg,var(--paper-100),var(--paper-50));
}
.crumb{
  display:flex;
  align-items:center;
  gap:8px;
  flex-wrap:wrap;
  padding:14px 0;
  font-size:13px;
  color:var(--text-400);
  letter-spacing:.02em;
}
.crumb a{color:var(--text-600)}
.crumb a:hover{color:var(--violet-600)}
.crumb .sep{color:var(--line-200)}
.crumb .now{color:var(--text-900);font-weight:600;max-width:56ch;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}

/* ---------- article head ---------- */
.article-shell{
  display:block;
  padding-top:40px;
  padding-bottom:56px;
}
.article-main{max-width:900px;margin:0 auto;min-width:0}
.article-head{margin-bottom:28px}
.head-chip{
  display:inline-flex;
  align-items:center;
  gap:6px;
  height:28px;
  padding:0 12px;
  border-radius:var(--r-sm);
  background:rgba(245,185,63,.14);
  color:#9A6B05;
  font-size:13px;
  font-weight:600;
  letter-spacing:.02em;
}
.article-head h1{
  font-size:clamp(26px,3.6vw,42px);
  line-height:1.28;
  font-weight:700;
  margin:16px 0 18px;
  letter-spacing:-.01em;
}
.meta-row{
  display:flex;
  align-items:center;
  flex-wrap:wrap;
  gap:10px 20px;
  font-size:13px;
  color:var(--text-400);
  letter-spacing:.02em;
  padding-bottom:20px;
  border-bottom:1px solid var(--line-200);
}
.meta-row .meta-item{display:inline-flex;align-items:center;gap:6px}
.meta-row .num{font-variant-numeric:tabular-nums;font-family:Inter,'Sora',sans-serif}
.cover-figure{margin:28px 0 8px}
.cover-figure img{
  width:100%;
  aspect-ratio:16/9;
  object-fit:cover;
  border-radius:var(--r-lg);
  border:1px solid var(--line-200);
  background:var(--paper-100);
}

/* ---------- toc ---------- */
.toc{
  display:none;
  align-self:start;
  position:sticky;
  top:104px;
  width:200px;
}
.toc-title{font-size:13px;font-weight:700;color:var(--text-400);letter-spacing:.06em;margin-bottom:12px}
.toc a{
  display:block;
  padding:7px 0 7px 12px;
  border-left:2px solid var(--line-200);
  font-size:13px;
  line-height:1.6;
  color:var(--text-600);
  transition:color .2s ease,border-color .2s ease;
}
.toc a:hover{color:var(--violet-600)}
.toc a.is-current{border-left-color:var(--violet-600);color:var(--violet-600);font-weight:600}

/* ---------- cms content ---------- */
.cms-content{
  max-width:760px;
  font-size:17px;
  line-height:1.95;
  color:var(--text-900);
  word-wrap:break-word;
}
.cms-content > *:first-child{margin-top:0}
.cms-content h2{
  font-size:clamp(21px,2.4vw,27px);
  line-height:1.35;
  font-weight:650;
  margin:40px 0 16px;
  scroll-margin-top:96px;
}
.cms-content h3{font-size:19px;line-height:1.45;font-weight:600;margin:28px 0 10px;scroll-margin-top:96px}
.cms-content p{margin:0 0 1.2em}
.cms-content a{color:var(--violet-600);text-decoration:underline;text-underline-offset:3px}
.cms-content a:hover{color:var(--violet-500)}
.cms-content ul,.cms-content ol{margin:0 0 1.2em;padding-left:1.5em}
.cms-content ul{list-style:disc}
.cms-content ol{list-style:decimal}
.cms-content li{margin:0 0 .55em;line-height:1.85}
.cms-content li::marker{color:var(--violet-600)}
.cms-content blockquote{
  margin:24px 0;
  padding:16px 22px;
  border-left:3px solid var(--star-400);
  background:var(--paper-100);
  border-radius:0 var(--r-md) var(--r-md) 0;
  color:var(--text-600);
}
.cms-content blockquote p:last-child{margin-bottom:0}
.cms-content img{border-radius:var(--r-md);margin:24px auto}
.cms-content figure{margin:24px 0}
.cms-content figcaption{font-size:13px;color:var(--text-400);text-align:center;margin-top:8px}
.cms-content hr{border:0;border-top:1px solid var(--line-200);margin:32px 0}
.cms-content table{width:100%;border-collapse:collapse;margin:24px 0;font-size:15px}
.cms-content th,.cms-content td{border:1px solid var(--line-200);padding:10px 14px;text-align:left}
.cms-content th{background:var(--paper-100);font-weight:600}
.cms-content pre{
  background:var(--ink-950);
  color:#EDE9F7;
  padding:18px;
  border-radius:var(--r-md);
  overflow-x:auto;
  font-size:14px;
  line-height:1.7;
  margin:24px 0;
}
.cms-content code{font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace}
.cms-content :not(pre) > code{
  background:var(--paper-100);
  color:var(--violet-600);
  padding:2px 6px;
  border-radius:6px;
  font-size:.9em;
}
.cms-content strong{font-weight:700}

/* ---------- tag / action row ---------- */
.article-foot{
  max-width:760px;
  margin-top:44px;
  padding-top:24px;
  border-top:1px solid var(--line-200);
}
.tag-row{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:20px}
.tag{
  display:inline-flex;align-items:center;height:30px;padding:0 12px;
  border-radius:var(--r-pill);
  border:1px solid var(--line-200);
  background:var(--paper-100);
  font-size:13px;color:var(--text-600);
  transition:border-color .2s ease,color .2s ease;
}
.tag:hover{border-color:var(--violet-600);color:var(--violet-600)}
.action-row{display:flex;flex-wrap:wrap;gap:12px;align-items:center}

/* ---------- empty state ---------- */
.empty-state{
  max-width:760px;
  text-align:center;
  padding:56px 24px;
  border:1px dashed var(--line-200);
  border-radius:var(--r-lg);
  background:var(--paper-100);
}
.empty-state .icon{color:var(--text-400);margin:0 auto 14px}
.empty-state h2{font-size:18px;font-weight:600;margin-bottom:8px}
.empty-state p{color:var(--text-600);font-size:14px;margin-bottom:20px}

/* ---------- section common ---------- */
.section{padding:56px 0}
.section-head{
  display:flex;
  align-items:flex-end;
  justify-content:space-between;
  gap:20px;
  margin-bottom:28px;
  flex-wrap:wrap;
}
.section-head h2{font-size:clamp(22px,2.6vw,30px);line-height:1.3;font-weight:650}
.section-head .lead{font-size:14px;color:var(--text-600);margin-top:8px;max-width:62ch}
.link-more{font-size:14px;color:var(--violet-600);font-weight:600;display:inline-flex;align-items:center;gap:4px}
.link-more:hover{color:var(--violet-500);text-decoration:underline;text-underline-offset:3px}

/* ---------- related rows ---------- */
.related-list{border-top:1px solid var(--line-200)}
.row-item{
  display:grid;
  grid-template-columns:200px minmax(0,1fr) 28px;
  gap:24px;
  align-items:center;
  padding:20px 12px;
  border-bottom:1px solid var(--line-200);
  transition:background .2s ease;
}
.row-item:hover{background:var(--paper-100)}
.row-item .thumb{
  width:200px;height:120px;object-fit:cover;border-radius:var(--r-md);
  border:1px solid var(--line-200);background:var(--paper-100);
}
.row-item .r-chip{
  display:inline-flex;align-items:center;height:26px;padding:0 10px;border-radius:var(--r-sm);
  background:rgba(108,70,216,.1);color:var(--violet-600);font-size:12px;font-weight:600;margin-bottom:8px;
}
.row-item h3{font-size:18px;line-height:1.5;font-weight:600;margin-bottom:6px;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.row-item:hover h3{color:var(--violet-600)}
.row-item .desc{font-size:14px;line-height:1.7;color:var(--text-600);
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.row-item .meta{font-size:13px;color:var(--text-400);margin-top:8px;display:flex;gap:14px;flex-wrap:wrap}
.row-item .arrow{color:var(--text-400);transition:transform .2s ease,color .2s ease}
.row-item:hover .arrow{transform:translateX(4px);color:var(--violet-600)}

/* ---------- cta band ---------- */
.cta-band{
  position:relative;
  background:var(--ink-900);
  color:#fff;
  overflow:hidden;
}
.cta-band::before{
  content:"";
  position:absolute;inset:0;
  background-image:radial-gradient(rgba(255,255,255,.14) 1px,transparent 1px);
  background-size:26px 26px;
  opacity:.35;
  pointer-events:none;
}
.cta-band::after{
  content:"";
  position:absolute;inset:0;
  background:radial-gradient(circle at 78% 10%,rgba(108,70,216,.5),transparent 58%);
  pointer-events:none;
}
.cta-inner{position:relative;z-index:2;text-align:center;padding:80px 0}
.cta-inner h2{font-size:clamp(23px,3vw,34px);line-height:1.3;font-weight:650;margin-bottom:14px}
.cta-inner p{color:rgba(255,255,255,.72);font-size:15px;max-width:60ch;margin:0 auto 28px;line-height:1.85}
.cta-actions{display:flex;gap:14px;justify-content:center;flex-wrap:wrap}
.cta-band .btn-ghost{border-color:rgba(255,255,255,.28);color:#fff}
.cta-band .btn-ghost:hover{background:rgba(255,255,255,.08);border-color:rgba(255,255,255,.5)}

/* ---------- footer ---------- */
.site-footer{background:var(--ink-950);color:rgba(255,255,255,.72);padding:64px 0 28px}
.footer-grid{
  display:grid;
  grid-template-columns:1.6fr 1fr 1fr 1.2fr;
  gap:40px;
}
.site-footer .brand-name{color:#fff}
.site-footer .brand-sub{color:rgba(255,255,255,.5)}
.footer-about{font-size:14px;line-height:1.85;margin-top:16px;max-width:38ch;color:rgba(255,255,255,.62)}
.footer-title{font-size:14px;font-weight:700;color:#fff;margin-bottom:16px;letter-spacing:.04em}
.footer-list li{margin-bottom:10px}
.footer-list a{font-size:14px;color:rgba(255,255,255,.68);transition:color .2s ease}
.footer-list a:hover{color:var(--star-400)}
.site-footer address{font-style:normal;font-size:14px;line-height:2;color:rgba(255,255,255,.68)}
.footer-bottom{
  margin-top:48px;
  padding-top:20px;
  border-top:1px solid rgba(255,255,255,.12);
  display:flex;
  justify-content:space-between;
  gap:12px;
  flex-wrap:wrap;
  font-size:13px;
  color:rgba(255,255,255,.45);
}

/* ---------- floating cta ---------- */
.float-cta{
  position:fixed;
  right:20px;
  bottom:20px;
  z-index:70;
  opacity:0;
  transform:translateY(8px);
  pointer-events:none;
  transition:opacity .3s ease,transform .3s ease,bottom .3s ease;
}
.float-cta.is-show{opacity:1;transform:translateY(0);pointer-events:auto}
.float-cta .btn{border-radius:var(--r-pill);box-shadow:var(--shadow-2)}
.float-cta.is-lift{bottom:36px}

/* ---------- responsive ---------- */
@media (min-width:1280px){
  .article-shell{display:grid;grid-template-columns:200px minmax(0,1fr);gap:48px;align-items:start;padding-top:56px}
  .article-shell .toc{order:1;display:block}
  .article-shell .toc[data-ready="0"]{display:none}
  .article-main{order:2;margin:0}
}
@media (max-width:1279px){
  .toc{display:none!important}
}
@media (max-width:1023px){
  :root{--pad-x:24px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
  .nav-chips{margin-left:0}
  .row-item{grid-template-columns:160px minmax(0,1fr) 24px;gap:18px}
  .row-item .thumb{width:160px;height:100px}
}
@media (max-width:767px){
  :root{--pad-x:16px}
  .header-inner{flex-wrap:wrap;gap:12px;min-height:auto;padding:12px 0}
  .header-cta{margin-left:auto;padding-left:0;border-left:0}
  .nav-chips{
    order:3;
    width:100%;
    margin:0;
    border-top:1px solid var(--line-200);
    padding:10px 0 4px;
  }
  .brand-sub{display:none}
  .section{padding:40px 0}
  .row-item{grid-template-columns:96px minmax(0,1fr);gap:14px;padding:16px 8px}
  .row-item .thumb{width:96px;height:72px}
  .row-item .arrow{display:none}
  .cta-inner{padding:56px 0}
  .cms-content{font-size:16px;line-height:1.9}
  .cms-content table{display:block;overflow-x:auto;white-space:nowrap}
  .float-cta{
    right:0;left:0;bottom:0;
    padding:10px 16px calc(10px + env(safe-area-inset-bottom));
    background:rgba(251,249,254,.96);
    border-top:1px solid var(--line-200);
  }
  .float-cta.is-lift{bottom:0}
  .float-cta .btn{width:100%;border-radius:var(--r-lg)}
}
@media (max-width:519px){
  .footer-grid{grid-template-columns:1fr}
  .meta-row{gap:8px 14px}
  .article-head h1{font-size:24px}
}

/* roulang page: category1 */
:root{
  --ink-950:#0A0715; --ink-900:#140E28; --nebula-800:#241844; --nebula-700:#33235F;
  --violet-600:#6C46D8; --violet-500:#8563E8; --star-400:#F5B93F; --stardust-300:#6FE3D2;
  --paper-50:#FBF9FE; --paper-100:#F3F0F9; --line-200:#E3DEF0;
  --text-900:#16121F; --text-600:#5A5470; --text-400:#8F89A3; --danger:#E4572E;
  --r-sm:8px; --r-md:14px; --r-lg:22px; --r-pill:999px;
  --shadow-1:0 1px 2px rgba(20,14,40,.06), 0 8px 24px rgba(20,14,40,.06);
  --shadow-2:0 24px 60px rgba(20,14,40,.14);
  --container:1200px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{margin:0;font-family:"Noto Sans SC","PingFang SC","HarmonyOS Sans","Microsoft YaHei",system-ui,sans-serif;font-size:16px;line-height:1.85;color:var(--text-900);background:var(--paper-50);-webkit-font-smoothing:antialiased}
img{max-width:100%;display:block}
a{color:var(--violet-600);text-decoration:none;transition:color .2s ease}
a:hover{color:var(--violet-500)}
h1,h2,h3,h4,p,ul,ol,figure,address,blockquote{margin:0}
ul,ol{padding:0;list-style:none}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer}
:focus-visible{outline:2px solid var(--stardust-300);outline-offset:2px}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 32px}
@media (max-width:1023px){.container{padding:0 24px}}
@media (max-width:519px){.container{padding:0 16px}}

/* ---------- 顶部导航 ---------- */
.site-header{position:sticky;top:0;z-index:60;color:#fff;background:linear-gradient(180deg,rgba(10,7,21,.94),rgba(10,7,21,.8));border-bottom:1px solid rgba(255,255,255,.08);transition:background .3s ease,color .3s ease,box-shadow .3s ease,border-color .3s ease}
.site-header.is-scrolled{background:var(--paper-50);color:var(--text-900);border-bottom-color:var(--line-200);box-shadow:var(--shadow-1)}
.header-inner{display:flex;align-items:center;gap:20px;min-height:68px;padding-top:10px;padding-bottom:10px}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto;color:inherit}
.brand:hover{color:inherit}
.brand-mark{width:38px;height:38px;border-radius:12px;display:grid;place-items:center;background:linear-gradient(140deg,var(--violet-600),var(--nebula-700));color:var(--star-400);border:1px solid rgba(245,185,63,.35)}
.brand-text{display:flex;flex-direction:column;line-height:1.16}
.brand-name{font-size:17px;font-weight:700;letter-spacing:.02em;color:inherit}
.brand-sub{font-size:12px;letter-spacing:.02em;color:rgba(255,255,255,.6);transition:color .3s ease}
.site-header.is-scrolled .brand-sub{color:var(--text-400)}
.nav-chips{display:flex;align-items:center;gap:8px;flex:1 1 auto;overflow-x:auto;scrollbar-width:none;-ms-overflow-style:none;padding:4px 2px}
.nav-chips::-webkit-scrollbar{display:none}
.chip{flex:0 0 auto;display:inline-flex;align-items:center;height:32px;padding:0 14px;border-radius:var(--r-pill);font-size:14px;letter-spacing:.02em;color:rgba(255,255,255,.86);border:1px solid rgba(255,255,255,.24);background:rgba(255,255,255,.05);transition:background .2s ease,color .2s ease,border-color .2s ease}
.chip:hover{background:rgba(255,255,255,.14);color:#fff}
.chip.is-active{background:rgba(245,185,63,.16);color:#fff;border-color:rgba(245,185,63,.5)}
.site-header.is-scrolled .chip{color:var(--text-600);border-color:var(--line-200);background:transparent}
.site-header.is-scrolled .chip:hover{background:var(--paper-100);color:var(--text-900)}
.site-header.is-scrolled .chip.is-active{background:rgba(108,70,216,.1);color:var(--violet-600);border-color:rgba(108,70,216,.28)}
.header-cta{flex:0 0 auto;padding-left:16px;border-left:1px solid rgba(255,255,255,.18);transition:border-color .3s ease}
.site-header.is-scrolled .header-cta{border-left-color:var(--line-200)}

/* ---------- 按钮 ---------- */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;height:46px;padding:0 24px;border-radius:var(--r-md);font-size:15px;font-weight:600;border:1px solid transparent;cursor:pointer;transition:transform .2s ease,background .2s ease,box-shadow .2s ease,color .2s ease,border-color .2s ease}
.btn-sm{height:38px;padding:0 18px;font-size:14px}
.btn-primary{background:var(--violet-600);color:#fff;box-shadow:0 8px 20px rgba(108,70,216,.28)}
.btn-primary:hover{background:var(--violet-500);color:#fff;transform:translateY(-1px);box-shadow:var(--shadow-2)}
.btn-primary:active{transform:none}
.btn-star{background:var(--star-400);color:var(--ink-900)}
.btn-star:hover{background:#F8C662;color:var(--ink-900);transform:translateY(-1px);box-shadow:var(--shadow-2)}
.btn-star:active{transform:none}
.btn-ghost{background:transparent;border-color:var(--line-200);color:var(--text-900)}
.btn-ghost:hover{border-color:var(--violet-600);background:var(--paper-100);color:var(--text-900)}
.btn-ghost-light{background:rgba(255,255,255,.07);border-color:rgba(255,255,255,.34);color:#fff}
.btn-ghost-light:hover{background:rgba(255,255,255,.16);border-color:rgba(255,255,255,.55);color:#fff}

/* ---------- 首屏 banner ---------- */
.banner{position:relative;display:flex;align-items:flex-end;min-height:340px;color:#fff;overflow:hidden;background:url('/assets/images/backpic/back-1.webp') center/cover no-repeat}
.banner::before{content:"";position:absolute;inset:0;background:radial-gradient(120% 90% at 80% 6%,rgba(108,70,216,.3),transparent 62%),linear-gradient(180deg,rgba(10,7,21,.72) 0%,rgba(10,7,21,.66) 46%,rgba(10,7,21,.9) 100%)}
.banner::after{content:"";position:absolute;inset:0;opacity:.12;pointer-events:none;background-image:radial-gradient(rgba(255,255,255,.95) 1px,transparent 1.4px),radial-gradient(rgba(245,185,63,.95) 1px,transparent 1.4px);background-size:120px 120px,180px 180px;background-position:14px 18px,66px 84px}
.banner .container{position:relative;z-index:2;padding-top:56px;padding-bottom:46px}
.breadcrumb{display:flex;align-items:center;gap:10px;font-size:13px;letter-spacing:.02em;color:rgba(255,255,255,.72);margin-bottom:18px}
.breadcrumb a{color:rgba(255,255,255,.72)}
.breadcrumb a:hover{color:#fff}
.breadcrumb .sep{opacity:.55}
.banner h1{font-size:clamp(30px,4.6vw,50px);line-height:1.22;font-weight:700;letter-spacing:-.01em;max-width:820px}
.banner-lead{max-width:700px;margin-top:20px;font-size:16px;line-height:1.9;color:rgba(255,255,255,.86)}
.banner-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:28px}
.banner-tags{display:flex;flex-wrap:wrap;gap:24px;margin-top:30px;font-size:13px;letter-spacing:.02em;color:rgba(255,255,255,.82)}
.banner-tags li{display:flex;align-items:center;gap:8px}
.banner-tags svg{color:var(--star-400);flex:0 0 auto}

/* ---------- 通用板块 ---------- */
.section{padding:96px 0}
.section-alt{background:var(--paper-100)}
.section-tight{padding:72px 0}
.section-head{max-width:760px}
.eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:13px;letter-spacing:.08em;color:var(--violet-600);font-weight:600;margin-bottom:14px}
.eyebrow::before{content:"";width:22px;height:1px;background:var(--violet-600);display:block}
.h2{font-size:clamp(23px,3vw,33px);line-height:1.3;font-weight:700;letter-spacing:-.01em}
.h3{font-size:19px;line-height:1.45;font-weight:600}
.section-desc{margin-top:16px;font-size:16px;line-height:1.9;color:var(--text-600)}
@media (max-width:767px){.section{padding:60px 0}.section-tight{padding:52px 0}}

/* ---------- 主体分栏 ---------- */
.layout-split{display:grid;grid-template-columns:minmax(0,2fr) minmax(0,1fr);gap:48px;align-items:start;margin-top:44px}
@media (max-width:1023px){.layout-split{grid-template-columns:1fr;gap:32px}}
.content-block h2{margin-bottom:16px}
.content-block p{font-size:17px;line-height:1.95;color:var(--text-600);margin-bottom:18px}
.content-block p:last-child{margin-bottom:0}
.block-divider{border:0;border-top:1px dashed var(--line-200);margin:40px 0}
.check-list{margin-top:22px;display:grid;gap:13px}
.check-list li{position:relative;padding-left:30px;font-size:15px;line-height:1.8;color:var(--text-600)}
.check-list li::before{content:"";position:absolute;left:2px;top:8px;width:13px;height:7px;border-left:2px solid var(--stardust-300);border-bottom:2px solid var(--stardust-300);transform:rotate(-45deg)}
.figure{margin-top:28px}
.figure img{width:100%;aspect-ratio:16/9;object-fit:cover;border-radius:var(--r-lg);border:1px solid var(--line-200);background:var(--paper-100)}
.figure figcaption{margin-top:12px;font-size:13px;color:var(--text-400);text-align:center;letter-spacing:.02em}

/* ---------- 侧栏 ---------- */
.sticky-wrap{position:sticky;top:96px;display:grid;gap:20px}
@media (max-width:1023px){.sticky-wrap{position:static}}
.side-card{background:#fff;border:1px solid var(--line-200);border-radius:var(--r-lg);padding:24px;box-shadow:var(--shadow-1);transition:box-shadow .25s ease,transform .25s ease,border-color .25s ease}
.side-card:hover{box-shadow:var(--shadow-2);transform:translateY(-2px);border-color:rgba(108,70,216,.28)}
.side-card h3{display:flex;align-items:center;gap:10px;font-size:16px;font-weight:600;margin-bottom:16px}
.side-card h3 svg{color:var(--star-400)}
.side-list{display:grid;gap:12px}
.side-list li{display:flex;gap:10px;font-size:14px;line-height:1.75;color:var(--text-600)}
.side-list .dot{flex:0 0 auto;width:6px;height:6px;border-radius:50%;background:var(--stardust-300);margin-top:9px}
.link-list a{display:flex;align-items:center;justify-content:space-between;gap:12px;padding:12px 0;font-size:14px;color:var(--text-900);border-bottom:1px solid var(--line-200)}
.link-list a:last-child{border-bottom:0;padding-bottom:0}
.link-list a:hover{color:var(--violet-600)}
.link-list a::after{content:"→";color:var(--text-400);transition:transform .2s ease,color .2s ease}
.link-list a:hover::after{transform:translateX(4px);color:var(--violet-600)}
.side-cta{background:linear-gradient(150deg,var(--nebula-800),var(--ink-900));color:#fff;border:1px solid rgba(245,185,63,.24)}
.side-cta h3{color:#fff}
.side-cta p{font-size:14px;line-height:1.8;color:rgba(255,255,255,.78);margin-bottom:18px}

/* ---------- 价值条 ---------- */
.value-list{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:0 44px;margin-top:40px}
.value-item{display:flex;gap:18px;padding:26px 0;border-bottom:1px dashed var(--line-200)}
.value-item:nth-child(even){margin-top:24px}
.value-item:last-child{border-bottom:0}
.value-icon{flex:0 0 auto;width:44px;height:44px;border-radius:14px;display:grid;place-items:center;background:rgba(108,70,216,.1);color:var(--star-400)}
.value-item h3{font-size:18px;font-weight:600;margin-bottom:8px}
.value-item p{font-size:15px;line-height:1.8;color:var(--text-600);max-width:520px}
@media (max-width:767px){.value-list{grid-template-columns:1fr}.value-item:nth-child(even){margin-top:0}}

/* ---------- 流程 ---------- */
.flow-grid{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1.05fr);gap:52px;align-items:center;margin-top:44px}
@media (max-width:1023px){.flow-grid{grid-template-columns:1fr;gap:32px}}
.step{display:flex;gap:18px;padding:20px 0 20px 22px;border-left:3px solid transparent;transition:border-color .2s ease,background .2s ease}
.step.is-current{border-left-color:var(--violet-600);background:linear-gradient(90deg,rgba(108,70,216,.07),transparent 78%)}
.step-no{flex:0 0 auto;min-width:36px;font-family:Inter,Sora,system-ui,sans-serif;font-size:24px;font-weight:700;line-height:1.25;color:var(--star-400);font-variant-numeric:tabular-nums}
.step h3{font-size:18px;font-weight:600;margin-bottom:6px}
.step p{font-size:15px;line-height:1.8;color:var(--text-600)}
.flow-media img{width:100%;aspect-ratio:16/10;object-fit:cover;border-radius:var(--r-lg);border:1px solid var(--line-200);box-shadow:var(--shadow-2);background:var(--paper-100)}
.flow-media figcaption{margin-top:12px;font-size:13px;color:var(--text-400);text-align:center}

/* ---------- FAQ ---------- */
.faq-list{max-width:820px;margin:40px auto 0;background:#fff;border:1px solid var(--line-200);border-radius:var(--r-lg);overflow:hidden;box-shadow:var(--shadow-1)}
.faq-item + .faq-item{border-top:1px solid var(--line-200)}
.faq-btn{width:100%;display:flex;align-items:center;gap:16px;padding:20px 24px;text-align:left;font-size:17px;font-weight:600;line-height:1.6;transition:background .2s ease,color .2s ease}
.faq-btn:hover{background:var(--paper-100)}
.faq-no{flex:0 0 auto;font-family:Inter,Sora,system-ui,sans-serif;font-size:14px;color:var(--text-400);font-variant-numeric:tabular-nums}
.faq-text{flex:1 1 auto}
.faq-icon{position:relative;flex:0 0 auto;width:18px;height:18px;color:var(--violet-600)}
.faq-icon::before,.faq-icon::after{content:"";position:absolute;background:currentColor;border-radius:2px;transition:transform .28s ease,opacity .28s ease}
.faq-icon::before{left:0;right:0;top:8px;height:2px}
.faq-icon::after{top:0;bottom:0;left:8px;width:2px}
.faq-item.is-open .faq-icon::after{transform:scaleY(0);opacity:0}
.faq-item.is-open .faq-btn{color:var(--violet-600)}
.faq-panel{display:grid;grid-template-rows:0fr;transition:grid-template-rows .3s ease}
.faq-item.is-open .faq-panel{grid-template-rows:1fr}
.faq-panel-inner{overflow:hidden}
.faq-panel-inner p{padding:0 24px 22px 62px;font-size:15px;line-height:1.85;color:var(--text-600)}
@media (max-width:600px){.faq-panel-inner p{padding:0 20px 20px 20px}.faq-btn{padding:18px 20px;font-size:16px}}

/* ---------- 结尾 CTA ---------- */
.cta-band{position:relative;padding:80px 0;color:#fff;text-align:center;overflow:hidden;background:var(--ink-900) url('/assets/images/backpic/back-3.webp') center/cover no-repeat}
.cta-band::before{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(20,14,40,.9),rgba(10,7,21,.93))}
.cta-inner{position:relative;z-index:2;max-width:780px;margin:0 auto}
.cta-inner h2{font-size:clamp(24px,3.2vw,34px);line-height:1.3;font-weight:700}
.cta-inner p{margin-top:18px;font-size:16px;line-height:1.9;color:rgba(255,255,255,.82)}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;justify-content:center;margin-top:30px}
.cta-note{margin-top:20px;font-size:13px;letter-spacing:.02em;color:rgba(255,255,255,.62)}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--ink-950);color:rgba(255,255,255,.72);padding:72px 0 32px;font-size:14px}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:40px}
@media (max-width:1023px){.footer-grid{grid-template-columns:1fr 1fr;gap:32px}}
@media (max-width:600px){.footer-grid{grid-template-columns:1fr}}
.site-footer .brand-name{color:#fff}
.site-footer .brand-sub{color:rgba(255,255,255,.55)}
.footer-about{margin-top:16px;max-width:340px;line-height:1.85}
.footer-title{font-size:15px;font-weight:600;color:#fff;margin-bottom:16px}
.footer-list{display:grid;gap:10px}
.footer-list a{color:rgba(255,255,255,.72)}
.footer-list a:hover{color:var(--star-400)}
.site-footer address{font-style:normal;line-height:1.95}
.footer-bottom{margin-top:48px;padding-top:24px;border-top:1px solid rgba(255,255,255,.1);display:flex;flex-wrap:wrap;justify-content:space-between;gap:12px;font-size:13px;color:rgba(255,255,255,.5)}

/* ---------- 浮动 CTA ---------- */
.float-cta{position:fixed;right:20px;bottom:20px;z-index:80;display:inline-flex;align-items:center;justify-content:center;gap:8px;height:48px;padding:0 22px;border-radius:var(--r-pill);background:var(--star-400);color:var(--ink-900);font-size:15px;font-weight:600;box-shadow:var(--shadow-2);opacity:0;transform:translateY(8px);pointer-events:none;transition:opacity .3s ease,transform .3s ease,background .2s ease}
.float-cta:hover{background:#F8C662;color:var(--ink-900)}
.float-cta.is-visible{opacity:1;transform:translateY(0);pointer-events:auto}
@media (max-width:767px){
  .float-cta{left:0;right:0;bottom:0;height:56px;border-radius:var(--r-lg) var(--r-lg) 0 0;padding-bottom:env(safe-area-inset-bottom)}
  .site-footer{padding-bottom:96px}
}

/* roulang page: category2 */
:root{
    --ink-950:#0A0715;
    --ink-900:#140E28;
    --nebula-800:#241844;
    --nebula-700:#33235F;
    --violet-600:#6C46D8;
    --violet-500:#8563E8;
    --star-400:#F5B93F;
    --stardust-300:#6FE3D2;
    --paper-50:#FBF9FE;
    --paper-100:#F3F0F9;
    --line-200:#E3DEF0;
    --text-900:#16121F;
    --text-600:#5A5470;
    --text-400:#8F89A3;
    --danger:#E4572E;
    --r-sm:8px;
    --r-md:14px;
    --r-lg:22px;
    --r-pill:999px;
    --shadow-1:0 1px 2px rgba(20,14,40,.06), 0 8px 24px rgba(20,14,40,.06);
    --shadow-2:0 24px 60px rgba(20,14,40,.14);
    --font-num:'Inter','Sora',ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;
  }
  *,*::before,*::after{box-sizing:border-box;}
  html{scroll-behavior:smooth;}
  body{
    margin:0;
    font-family:'Noto Sans SC','PingFang SC','HarmonyOS Sans','Microsoft YaHei',system-ui,-apple-system,'Segoe UI',sans-serif;
    font-size:16px;
    line-height:1.85;
    color:var(--text-900);
    background:var(--paper-50);
    -webkit-font-smoothing:antialiased;
    text-rendering:optimizeLegibility;
  }
  img{max-width:100%;display:block;}
  a{color:var(--violet-600);text-decoration:none;transition:color .2s ease;}
  a:hover{text-decoration:underline;text-underline-offset:3px;}
  ul{margin:0;padding:0;list-style:none;}
  p{margin:0;}
  button{font-family:inherit;font-size:inherit;color:inherit;}
  :focus-visible{outline:2px solid var(--stardust-300);outline-offset:2px;}

  .container{width:100%;max-width:1200px;margin:0 auto;padding:0 32px;}
  @media (max-width:1023px){.container{padding:0 24px;}}
  @media (max-width:767px){.container{padding:0 16px;}}

  /* ============ Header ============ */
  .site-header{
    position:sticky;top:0;z-index:70;
    background:rgba(251,249,254,.96);
    border-bottom:1px solid var(--line-200);
    transition:box-shadow .25s ease,background .25s ease;
  }
  .site-header.is-scrolled{box-shadow:var(--shadow-1);background:rgba(251,249,254,1);}
  .header-inner{display:flex;align-items:center;gap:20px;height:72px;}
  .brand{display:inline-flex;align-items:center;gap:10px;color:var(--text-900);text-decoration:none;}
  .brand:hover{text-decoration:none;}
  .brand-mark{
    width:36px;height:36px;flex:none;border-radius:12px;
    display:grid;place-items:center;
    background:rgba(108,70,216,.12);
    color:var(--violet-600);
  }
  .brand-text{display:flex;flex-direction:column;line-height:1.15;}
  .brand-name{font-size:16px;font-weight:700;letter-spacing:.01em;}
  .brand-sub{font-size:11px;color:var(--text-400);letter-spacing:.02em;margin-top:3px;}
  .nav-chips{
    display:flex;align-items:center;gap:8px;
    flex:1 1 auto;min-width:0;
    overflow-x:auto;scrollbar-width:none;-ms-overflow-style:none;
  }
  .nav-chips::-webkit-scrollbar{display:none;}
  .chip{
    display:inline-flex;align-items:center;
    height:32px;padding:0 14px;border-radius:var(--r-pill);
    border:1px solid var(--line-200);
    background:transparent;
    font-size:14px;color:var(--text-600);white-space:nowrap;
    text-decoration:none;transition:background .2s ease,color .2s ease,border-color .2s ease;
  }
  .chip:hover{background:var(--paper-100);color:var(--text-900);text-decoration:none;}
  .chip.is-active{
    background:rgba(108,70,216,.1);
    color:var(--violet-600);
    border-color:rgba(108,70,216,.28);
    font-weight:600;
  }
  .header-cta{padding-left:20px;border-left:1px solid var(--line-200);margin-left:auto;}

  /* ============ Buttons ============ */
  .btn{
    display:inline-flex;align-items:center;justify-content:center;gap:8px;
    height:46px;padding:0 24px;border-radius:var(--r-md);
    border:1px solid transparent;
    font-size:15px;font-weight:600;line-height:1;
    cursor:pointer;text-decoration:none;white-space:nowrap;
    transition:background .2s ease,color .2s ease,border-color .2s ease,transform .2s ease,box-shadow .2s ease,filter .2s ease;
  }
  .btn:hover{text-decoration:none;}
  .btn-primary{background:var(--violet-600);color:#fff;}
  .btn-primary:hover{background:var(--violet-500);transform:translateY(-1px);box-shadow:var(--shadow-2);}
  .btn-primary:active{transform:none;}
  .btn-secondary{background:transparent;border-color:var(--line-200);color:var(--text-900);}
  .btn-secondary:hover{border-color:var(--violet-600);background:var(--paper-100);}
  .btn-star{background:var(--star-400);color:var(--ink-900);}
  .btn-star:hover{filter:brightness(1.06);transform:translateY(-1px);box-shadow:var(--shadow-2);}
  .btn-sm{height:38px;padding:0 18px;font-size:14px;border-radius:12px;}
  .btn:disabled{opacity:.5;cursor:not-allowed;}

  /* ============ Hero ============ */
  .cat-hero{
    position:relative;
    min-height:320px;
    padding:64px 0 72px;
    color:#fff;
    background:url('/assets/images/backpic/back-2.webp') center/cover no-repeat,var(--ink-950);
    overflow:hidden;
  }
  .cat-hero::before{
    content:"";position:absolute;inset:0;
    background:
      radial-gradient(900px 420px at 78% 8%, rgba(108,70,216,.28), transparent 68%),
      linear-gradient(180deg, rgba(10,7,21,.70), rgba(10,7,21,.88));
  }
  .cat-hero .container{position:relative;z-index:1;}
  .breadcrumb{display:flex;align-items:center;gap:8px;font-size:13px;color:rgba(255,255,255,.66);letter-spacing:.02em;}
  .breadcrumb a{color:rgba(255,255,255,.66);}
  .breadcrumb a:hover{color:var(--star-400);text-decoration:none;}
  .breadcrumb .sep{color:rgba(255,255,255,.35);}
  .hero-title{
    margin-top:18px;
    font-size:clamp(30px,4.6vw,54px);
    line-height:1.22;font-weight:700;color:#fff;
    letter-spacing:.005em;max-width:16em;
  }
  .hero-lead{
    margin-top:20px;max-width:660px;
    font-size:17px;line-height:1.9;color:rgba(255,255,255,.82);
  }
  .hero-tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:26px;}
  .tag{
    display:inline-flex;align-items:center;gap:7px;
    padding:7px 13px;border-radius:var(--r-sm);
    background:rgba(255,255,255,.08);
    border:1px solid rgba(255,255,255,.16);
    font-size:13px;color:#fff;letter-spacing:.02em;
  }
  .tag svg{color:var(--stardust-300);flex:none;}

  /* ============ Filter bar ============ */
  .filter-bar{background:var(--paper-50);border-bottom:1px solid var(--line-200);}
  .filter-inner{display:flex;align-items:center;gap:18px;padding-top:16px;padding-bottom:16px;}
  .filter-label{font-size:13px;color:var(--text-400);letter-spacing:.02em;white-space:nowrap;flex:none;}
  .filter-chips{
    display:flex;align-items:center;gap:8px;
    overflow-x:auto;scrollbar-width:none;-ms-overflow-style:none;
    flex:1 1 auto;min-width:0;
  }
  .filter-chips::-webkit-scrollbar{display:none;}
  @media (max-width:767px){
    .filter-inner{flex-direction:column;align-items:flex-start;gap:10px;}
    .filter-chips{width:100%;}
  }

  /* ============ Section basics ============ */
  .section{padding:96px 0;}
  @media (max-width:1023px){.section{padding:72px 0;}}
  @media (max-width:767px){.section{padding:56px 0;}}
  .section--alt{background:var(--paper-100);}
  .section-head{max-width:760px;margin-bottom:40px;}
  .eyebrow{
    display:inline-flex;align-items:center;gap:8px;
    font-size:13px;font-weight:600;letter-spacing:.06em;
    color:var(--violet-600);margin-bottom:12px;
  }
  .eyebrow::before{content:"";width:18px;height:1px;background:var(--violet-600);opacity:.6;}
  .section-title{font-size:clamp(23px,3vw,34px);line-height:1.3;font-weight:700;letter-spacing:.005em;}
  .section-lead{margin-top:14px;font-size:16px;line-height:1.9;color:var(--text-600);}

  /* ============ Timeline ============ */
  .timeline{position:relative;margin-top:8px;}
  .timeline::before{
    content:"";position:absolute;left:56px;top:14px;bottom:14px;width:1px;
    background:var(--line-200);
  }
  .timeline-item{position:relative;padding-left:96px;padding-bottom:32px;}
  .timeline-item:last-child{padding-bottom:0;}
  .timeline-index{
    position:absolute;left:0;top:0;width:44px;
    text-align:right;
    font-family:var(--font-num);font-size:28px;font-weight:600;
    line-height:1.2;color:var(--star-400);
    font-variant-numeric:tabular-nums;letter-spacing:-.02em;
  }
  .timeline-dot{
    position:absolute;left:50px;top:14px;
    width:13px;height:13px;border-radius:50%;
    background:var(--stardust-300);
    box-shadow:0 0 0 4px rgba(111,227,210,.18);
  }
  .timeline-card{
    display:grid;grid-template-columns:minmax(0,1fr) 216px;gap:28px;align-items:start;
    padding:24px;border-radius:var(--r-lg);
    background:#fff;border:1px solid var(--line-200);
    box-shadow:var(--shadow-1);
    transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease;
  }
  .timeline-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-2);border-color:rgba(108,70,216,.2);}
  .timeline-title{font-size:20px;line-height:1.45;font-weight:600;}
  .timeline-desc{margin-top:10px;font-size:15.5px;line-height:1.85;color:var(--text-600);}
  .timeline-meta{margin-top:14px;}
  .badge{
    display:inline-flex;align-items:center;gap:6px;
    padding:5px 11px;border-radius:var(--r-sm);
    background:rgba(108,70,216,.1);color:var(--violet-600);
    font-size:13px;font-weight:600;letter-spacing:.02em;
  }
  .badge-star{background:rgba(245,185,63,.16);color:#9A6A08;}
  .timeline-thumb{
    width:100%;aspect-ratio:5/3;object-fit:cover;
    border-radius:var(--r-md);
    background:var(--paper-100);
  }
  @media (max-width:767px){
    .timeline::before{left:36px;}
    .timeline-dot{left:32px;top:12px;width:9px;height:9px;box-shadow:0 0 0 3px rgba(111,227,210,.2);}
    .timeline-index{width:28px;font-size:17px;top:2px;}
    .timeline-item{padding-left:60px;padding-bottom:26px;}
    .timeline-card{grid-template-columns:1fr;gap:16px;padding:20px;}
    .timeline-thumb{max-width:220px;}
  }

  /* ============ Cards ============ */
  .grid-2{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:24px;}
  .grid-4{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:24px;}
  @media (max-width:1023px){.grid-4{grid-template-columns:repeat(2,minmax(0,1fr));}}
  @media (max-width:767px){.grid-2,.grid-4{grid-template-columns:1fr;gap:16px;}}
  .card{
    background:#fff;border:1px solid var(--line-200);border-radius:var(--r-lg);
    box-shadow:var(--shadow-1);padding:24px;
    transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease;
  }
  .card:hover{transform:translateY(-2px);box-shadow:var(--shadow-2);border-color:rgba(108,70,216,.2);}
  .card-icon{
    width:44px;height:44px;border-radius:12px;
    display:grid;place-items:center;
    background:rgba(108,70,216,.1);color:var(--violet-600);
    margin-bottom:16px;
  }
  .card h3{font-size:18px;font-weight:600;line-height:1.5;}
  .card p{margin-top:10px;font-size:14.5px;line-height:1.8;color:var(--text-600);}
  .card-note{margin-top:14px;font-size:13px;color:var(--text-400);letter-spacing:.02em;}

  /* ============ Dark band ============ */
  .dark-band{
    position:relative;overflow:hidden;
    background:var(--ink-900);color:#fff;
    padding:96px 0;
  }
  .dark-band::before{
    content:"";position:absolute;inset:0;pointer-events:none;
    background:radial-gradient(760px 340px at 84% 6%, rgba(108,70,216,.16), transparent 70%);
  }
  .dark-band .container{position:relative;z-index:1;}
  .dark-band .section-title{color:#fff;}
  .dark-band .section-lead{color:rgba(255,255,255,.72);}
  .dark-band .eyebrow{color:var(--star-400);}
  .dark-band .eyebrow::before{background:var(--star-400);}
  @media (max-width:767px){.dark-band{padding:56px 0;}}

  .stat-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:20px;}
  @media (max-width:520px){.stat-grid{grid-template-columns:1fr;}}
  .stat{padding:20px;border-radius:var(--r-md);background:rgba(255,255,255,.05);border:1px solid rgba(255,255,255,.1);}
  .stat-num{
    font-family:var(--font-num);font-size:32px;font-weight:600;
    color:var(--star-400);font-variant-numeric:tabular-nums;letter-spacing:-.01em;line-height:1.1;
  }
  .stat-label{margin-top:8px;font-size:13px;color:rgba(255,255,255,.66);letter-spacing:.02em;}

  .check-list{margin-top:32px;border-top:1px solid rgba(255,255,255,.12);}
  .check-list li{
    display:flex;gap:14px;align-items:flex-start;
    padding:18px 0;border-bottom:1px solid rgba(255,255,255,.12);
  }
  .check-list li:last-child{border-bottom:none;}
  .check-icon{flex:none;margin-top:5px;color:var(--stardust-300);}
  .check-title{font-size:15.5px;font-weight:600;color:#fff;}
  .check-desc{margin-top:6px;font-size:14px;line-height:1.8;color:rgba(255,255,255,.68);}

  /* ============ FAQ ============ */
  .faq-wrap{max-width:820px;margin-top:8px;}
  .faq-item{border-bottom:1px solid var(--line-200);}
  .faq-item:first-child{border-top:1px solid var(--line-200);}
  .faq-q{
    width:100%;display:flex;align-items:flex-start;gap:16px;
    padding:22px 0;background:transparent;border:none;text-align:left;cursor:pointer;
  }
  .faq-num{
    font-family:var(--font-num);font-size:14px;font-weight:600;
    color:var(--text-400);font-variant-numeric:tabular-nums;
    line-height:1.6;padding-top:3px;flex:none;width:28px;
  }
  .faq-text{flex:1;font-size:17px;font-weight:600;line-height:1.6;color:var(--text-900);transition:color .2s ease;}
  .faq-q:hover .faq-text{color:var(--violet-600);}
  .faq-icon{
    flex:none;width:24px;height:24px;margin-top:2px;
    display:grid;place-items:center;
    color:var(--text-400);
    transition:transform .28s ease,color .2s ease;
  }
  .faq-item.is-open .faq-icon{transform:rotate(45deg);color:var(--violet-600);}
  .faq-a{max-height:0;overflow:hidden;transition:max-height .32s ease;}
  .faq-a p{padding:0 0 24px 44px;font-size:15px;line-height:1.85;color:var(--text-600);}
  @media (max-width:520px){.faq-a p{padding-left:0;}}

  /* ============ CTA band ============ */
  .cta-band{
    position:relative;overflow:hidden;
    background:var(--ink-900);color:#fff;
    padding:80px 0;text-align:center;
  }
  .cta-band::before{
    content:"";position:absolute;inset:0;
    background:url('/assets/images/backpic/back-3.webp') center/cover no-repeat;
    opacity:.16;
  }
  .cta-band::after{
    content:"";position:absolute;inset:0;
    background:radial-gradient(700px 320px at 50% 110%, rgba(108,70,216,.22), transparent 70%);
  }
  .cta-band .container{position:relative;z-index:1;}
  .cta-title{font-size:clamp(23px,3vw,34px);line-height:1.3;font-weight:700;color:#fff;}
  .cta-lead{margin:16px auto 0;max-width:620px;font-size:16px;line-height:1.9;color:rgba(255,255,255,.76);}
  .cta-actions{display:flex;flex-wrap:wrap;gap:14px;justify-content:center;margin-top:32px;}
  .cta-band .btn-secondary{border-color:rgba(255,255,255,.28);color:#fff;}
  .cta-band .btn-secondary:hover{background:rgba(255,255,255,.1);border-color:#fff;}
  .cta-note{margin-top:20px;font-size:13px;color:rgba(255,255,255,.55);letter-spacing:.02em;}

  /* ============ Footer ============ */
  .site-footer{background:var(--ink-950);color:rgba(255,255,255,.7);padding:64px 0 32px;}
  .footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.3fr;gap:40px;}
  @media (max-width:1023px){.footer-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:32px;}}
  @media (max-width:520px){.footer-grid{grid-template-columns:1fr;gap:28px;}}
  .site-footer .brand-name{color:#fff;}
  .site-footer .brand-sub{color:rgba(255,255,255,.5);}
  .site-footer .brand-mark{background:rgba(245,185,63,.14);color:var(--star-400);}
  .footer-about{margin-top:16px;max-width:300px;font-size:14px;line-height:1.85;color:rgba(255,255,255,.6);}
  .footer-title{font-size:14px;font-weight:600;color:#fff;letter-spacing:.02em;margin-bottom:16px;}
  .footer-list li{margin-bottom:10px;}
  .footer-list a{font-size:14px;color:rgba(255,255,255,.7);}
  .footer-list a:hover{color:var(--star-400);text-decoration:none;}
  .site-footer address{font-style:normal;font-size:14px;line-height:2;color:rgba(255,255,255,.65);}
  .footer-bottom{
    margin-top:48px;padding-top:20px;border-top:1px solid rgba(255,255,255,.12);
    display:flex;justify-content:space-between;flex-wrap:wrap;gap:12px;
    font-size:13px;color:rgba(255,255,255,.48);letter-spacing:.02em;
  }

  /* ============ Floating CTA ============ */
  .float-cta{
    position:fixed;right:20px;bottom:20px;z-index:80;
    opacity:0;transform:translateY(8px);pointer-events:none;
    transition:opacity .28s ease,transform .28s ease;
  }
  .float-cta.is-visible{opacity:1;transform:translateY(0);pointer-events:auto;}
  .float-cta.is-near-footer.is-visible{transform:translateY(-16px);}
  .float-cta .btn{border-radius:var(--r-pill);box-shadow:var(--shadow-2);}
  @media (max-width:767px){
    .float-cta{left:0;right:0;bottom:0;transform:translateY(100%);}
    .float-cta.is-visible{transform:translateY(0);}
    .float-cta.is-near-footer.is-visible{transform:translateY(0);}
    .float-cta .btn{
      width:100%;height:56px;border-radius:var(--r-lg) var(--r-lg) 0 0;
      padding-bottom:env(safe-area-inset-bottom);
    }
    .site-footer{padding-bottom:96px;}
  }

  @media (max-width:767px){
    .header-inner{flex-wrap:wrap;height:auto;padding:12px 0;gap:10px;}
    .brand{order:1;}
    .header-cta{order:2;margin-left:auto;border-left:none;padding-left:0;}
    .header-cta .btn{height:34px;padding:0 14px;font-size:13px;border-radius:10px;}
    .nav-chips{order:3;width:100%;flex:none;padding-bottom:2px;}
    .hero-title{margin-top:14px;}
    .hero-lead{font-size:15.5px;}
  }

/* roulang page: category3 */
:root{
    --ink-950:#0A0715;
    --ink-900:#140E28;
    --nebula-800:#241844;
    --nebula-700:#33235F;
    --violet-600:#6C46D8;
    --violet-500:#8563E8;
    --star-400:#F5B93F;
    --stardust-300:#6FE3D2;
    --paper-50:#FBF9FE;
    --paper-100:#F3F0F9;
    --line-200:#E3DEF0;
    --text-900:#16121F;
    --text-600:#5A5470;
    --text-400:#8F89A3;
    --warn:#E4572E;
    --r-sm:8px;
    --r-md:14px;
    --r-lg:22px;
    --r-pill:999px;
    --shadow-1:0 1px 2px rgba(20,14,40,.06), 0 8px 24px rgba(20,14,40,.06);
    --shadow-2:0 24px 60px rgba(20,14,40,.14);
    --font-sans:"Noto Sans SC","PingFang SC","HarmonyOS Sans","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
  }

  *,*::before,*::after{box-sizing:border-box;}
  html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
  body{
    margin:0;
    font-family:var(--font-sans);
    font-size:16px;
    line-height:1.85;
    color:var(--text-900);
    background:var(--paper-50);
    -webkit-font-smoothing:antialiased;
  }
  img{max-width:100%;display:block;}
  a{color:inherit;text-decoration:none;}
  button{font-family:inherit;}
  h1,h2,h3,h4{margin:0;font-weight:650;color:var(--text-900);}
  p{margin:0 0 1.15em;}
  ul{margin:0;padding:0;list-style:none;}
  address{font-style:normal;}

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

  /* ---------- 顶部导航 ---------- */
  .site-header{
    position:fixed;top:0;left:0;right:0;z-index:60;
    background:transparent;
    border-bottom:1px solid transparent;
    transition:background .28s ease,border-color .28s ease,box-shadow .28s ease;
  }
  .site-header.is-scrolled{
    background:rgba(251,249,254,.94);
    backdrop-filter:saturate(140%) blur(6px);
    border-bottom:1px solid var(--line-200);
    box-shadow:var(--shadow-1);
  }
  .header-inner{
    display:flex;align-items:center;gap:24px;
    min-height:72px;
  }
  .brand{display:flex;align-items:center;gap:10px;flex:0 0 auto;}
  .brand-mark{
    width:36px;height:36px;border-radius:12px;
    display:flex;align-items:center;justify-content:center;
    background:linear-gradient(140deg,var(--violet-600),var(--nebula-700));
    color:var(--star-400);
    box-shadow:0 6px 18px rgba(108,70,216,.28);
  }
  .brand-text{display:flex;flex-direction:column;line-height:1.2;}
  .brand-name{font-size:17px;font-weight:700;letter-spacing:.01em;color:#fff;}
  .brand-sub{font-size:12px;letter-spacing:.02em;color:rgba(255,255,255,.62);}
  .is-scrolled .brand-name{color:var(--text-900);}
  .is-scrolled .brand-sub{color:var(--text-400);}

  .nav-chips{
    display:flex;align-items:center;gap:8px;
    overflow-x:auto;scrollbar-width:none;-ms-overflow-style:none;
    flex:1 1 auto;padding:6px 2px;
  }
  .nav-chips::-webkit-scrollbar{display:none;}
  .chip{
    display:inline-flex;align-items:center;
    height:32px;padding:0 14px;border-radius:var(--r-pill);
    font-size:14px;white-space:nowrap;
    border:1px solid rgba(255,255,255,.22);
    color:rgba(255,255,255,.82);
    transition:background .2s ease,color .2s ease,border-color .2s ease;
  }
  .chip:hover{background:rgba(255,255,255,.12);color:#fff;}
  .chip.is-active{
    background:rgba(255,255,255,.16);
    color:#fff;border-color:rgba(255,255,255,.4);
    box-shadow:inset 0 -2px 0 var(--star-400);
  }
  .is-scrolled .chip{border-color:var(--line-200);color:var(--text-600);}
  .is-scrolled .chip:hover{background:var(--paper-100);color:var(--text-900);}
  .is-scrolled .chip.is-active{
    background:rgba(108,70,216,.10);
    color:var(--violet-600);
    border-color:rgba(108,70,216,.28);
    box-shadow:inset 0 -2px 0 var(--violet-600);
  }
  .header-cta{
    flex:0 0 auto;display:flex;align-items:center;
    padding-left:20px;border-left:1px solid rgba(255,255,255,.2);
  }
  .is-scrolled .header-cta{border-left-color:var(--line-200);}

  /* ---------- 按钮 ---------- */
  .btn{
    display:inline-flex;align-items:center;justify-content:center;gap:8px;
    height:46px;padding:0 24px;border-radius:var(--r-md);
    font-size:15px;font-weight:600;cursor:pointer;
    border:1px solid transparent;
    transition:background .2s ease,color .2s ease,border-color .2s ease,transform .2s ease,box-shadow .2s ease;
  }
  .btn-sm{height:40px;padding:0 18px;font-size:14px;}
  .btn-primary{background:var(--violet-600);color:#fff;box-shadow:0 10px 24px rgba(108,70,216,.24);}
  .btn-primary:hover{background:var(--violet-500);transform:translateY(-1px);box-shadow:var(--shadow-2);}
  .btn-primary:active{transform:none;}
  .btn-ghost{background:transparent;border-color:var(--line-200);color:var(--text-900);}
  .btn-ghost:hover{border-color:var(--violet-600);background:var(--paper-100);}
  .btn-star{background:var(--star-400);color:var(--ink-900);}
  .btn-star:hover{filter:brightness(1.06);transform:translateY(-1px);}
  .btn-on-dark{border-color:rgba(255,255,255,.28);color:#fff;}
  .btn-on-dark:hover{background:rgba(255,255,255,.12);border-color:rgba(255,255,255,.5);}
  .btn:focus-visible,.chip:focus-visible,.float-cta:focus-visible,a:focus-visible{
    outline:2px solid var(--stardust-300);outline-offset:2px;
  }

  /* ---------- 首屏 ---------- */
  .cat-hero{
    position:relative;overflow:hidden;
    background-color:var(--ink-950);
    background-image:
      radial-gradient(circle at 18% 22%, rgba(245,185,63,.16) 0, rgba(245,185,63,0) 42%),
      radial-gradient(circle at 82% 12%, rgba(111,227,210,.14) 0, rgba(111,227,210,0) 40%),
      radial-gradient(circle at 60% 90%, rgba(108,70,216,.22) 0, rgba(108,70,216,0) 48%),
      linear-gradient(180deg,rgba(10,7,21,.72),rgba(10,7,21,.86)),
      url("/assets/images/backpic/back-3.webp");
    background-size:cover,cover,cover,cover,cover;
    background-position:center,center,center,center,center;
    padding:172px 0 92px;
  }
  .cat-hero::after{
    content:"";position:absolute;inset:0;pointer-events:none;
    background-image:radial-gradient(rgba(255,255,255,.10) 1px,transparent 1px);
    background-size:34px 34px;opacity:.5;
  }
  .cat-hero .container{position:relative;z-index:2;text-align:center;}
  .breadcrumb{
    display:flex;align-items:center;justify-content:center;gap:10px;
    font-size:13px;color:rgba(255,255,255,.62);margin-bottom:26px;
  }
  .breadcrumb a{color:rgba(255,255,255,.7);}
  .breadcrumb a:hover{color:var(--star-400);}
  .breadcrumb span[aria-current]{color:rgba(255,255,255,.9);}
  .hero-badge{
    display:inline-flex;align-items:center;gap:8px;
    height:30px;padding:0 14px;border-radius:var(--r-pill);
    font-size:13px;letter-spacing:.02em;
    background:rgba(245,185,63,.14);color:var(--star-400);
    border:1px solid rgba(245,185,63,.32);
    margin-bottom:22px;
  }
  .cat-hero h1{
    font-size:clamp(30px,4.6vw,54px);
    line-height:1.22;font-weight:700;color:#fff;
    letter-spacing:.01em;margin:0 auto 22px;max-width:900px;
  }
  .hero-lead{
    max-width:720px;margin:0 auto 34px;
    font-size:17px;line-height:1.9;color:rgba(255,255,255,.78);
  }
  .hero-tags{
    display:flex;flex-wrap:wrap;justify-content:center;gap:12px;
  }
  .hero-tag{
    display:inline-flex;align-items:center;gap:8px;
    height:32px;padding:0 14px;border-radius:var(--r-sm);
    font-size:13px;color:rgba(255,255,255,.86);
    background:rgba(255,255,255,.07);
    border:1px solid rgba(255,255,255,.16);
  }
  .hero-tag svg{color:var(--stardust-300);}

  /* ---------- 通用板块 ---------- */
  .section{padding:96px 0;}
  .section-alt{background:var(--paper-100);}
  .section-head{max-width:760px;margin:0 auto 40px;text-align:center;}
  .section-kicker{
    display:inline-block;font-size:13px;letter-spacing:.08em;
    color:var(--violet-600);font-weight:600;margin-bottom:12px;
  }
  .section-title{
    font-size:clamp(23px,3vw,34px);line-height:1.3;font-weight:650;
    margin-bottom:16px;
  }
  .section-desc{font-size:16px;color:var(--text-600);margin:0;}

  /* ---------- 分节正文（分节型） ---------- */
  .seg{max-width:1200px;margin:0 auto;}
  .seg + .seg{margin-top:88px;padding-top:80px;border-top:1px dashed var(--line-200);}
  .seg-num{
    display:inline-flex;align-items:center;justify-content:center;
    width:52px;height:52px;border-radius:16px;
    font-size:20px;font-weight:700;
    font-variant-numeric:tabular-nums;
    color:var(--star-400);
    background:rgba(108,70,216,.10);
    border:1px solid rgba(108,70,216,.18);
    margin-bottom:20px;
  }
  .seg-body{max-width:820px;}
  .seg h2{font-size:clamp(22px,2.6vw,30px);line-height:1.35;margin-bottom:18px;}
  .seg p{font-size:16.5px;line-height:1.95;color:var(--text-600);}
  .seg p strong{color:var(--text-900);font-weight:600;}
  .seg-figure{
    margin:36px 0 0;
    border-radius:var(--r-lg);
    overflow:hidden;
    border:1px solid var(--line-200);
    box-shadow:var(--shadow-1);
    background:var(--paper-100);
  }
  .seg-figure img{width:100%;aspect-ratio:16/9;object-fit:cover;}
  .seg-figure figcaption{
    padding:12px 20px;font-size:13px;color:var(--text-400);
    background:#fff;border-top:1px solid var(--line-200);
  }
  .seg-points{margin:26px 0 0;display:grid;gap:14px;}
  .seg-points li{
    display:flex;gap:12px;align-items:flex-start;
    font-size:15.5px;color:var(--text-600);line-height:1.8;
  }
  .seg-points li svg{flex:0 0 auto;margin-top:5px;color:var(--stardust-300);}

  /* ---------- 能力横条 ---------- */
  .ability-list{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:0 40px;}
  .ability-item{
    display:flex;gap:20px;align-items:flex-start;
    padding:26px 0;border-bottom:1px dashed var(--line-200);
  }
  .ability-item:nth-child(2){transform:translateY(24px);}
  .ability-item:nth-child(4){transform:translateY(24px);}
  .ability-icon{
    flex:0 0 auto;width:44px;height:44px;border-radius:14px;
    display:flex;align-items:center;justify-content:center;
    background:rgba(108,70,216,.10);color:var(--star-400);
  }
  .ability-item h3{font-size:19px;line-height:1.45;margin-bottom:8px;}
  .ability-item p{font-size:14.5px;color:var(--text-600);line-height:1.8;margin:0;}

  /* ---------- 步骤 ---------- */
  .steps{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px;}
  .step-card{
    background:#fff;border:1px solid var(--line-200);border-radius:var(--r-lg);
    padding:28px 24px;box-shadow:var(--shadow-1);
    transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease;
  }
  .step-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-2);border-color:rgba(108,70,216,.28);}
  .step-num{
    font-size:28px;font-weight:700;font-variant-numeric:tabular-nums;
    color:var(--star-400);line-height:1;margin-bottom:16px;
    font-family:Inter,"Sora",var(--font-sans);
  }
  .step-card h3{font-size:19px;margin-bottom:10px;}
  .step-card p{font-size:14.5px;color:var(--text-600);line-height:1.8;margin:0;}

  /* ---------- FAQ ---------- */
  .faq-wrap{max-width:820px;margin:0 auto;}
  .faq-item{border-bottom:1px solid var(--line-200);}
  .faq-q{
    width:100%;display:flex;align-items:center;gap:16px;
    background:none;border:0;cursor:pointer;text-align:left;
    padding:22px 0;font-size:17px;font-weight:600;color:var(--text-900);
    transition:color .2s ease;
  }
  .faq-q:hover{color:var(--violet-600);}
  .faq-index{
    font-size:13px;color:var(--text-400);
    font-variant-numeric:tabular-nums;flex:0 0 auto;
    font-family:Inter,"Sora",var(--font-sans);
  }
  .faq-q span.faq-text{flex:1 1 auto;}
  .faq-icon{
    flex:0 0 auto;width:24px;height:24px;border-radius:50%;
    display:flex;align-items:center;justify-content:center;
    color:var(--violet-600);transition:transform .25s ease;
  }
  .faq-item.is-open .faq-icon{transform:rotate(45deg);}
  .faq-panel{
    max-height:0;overflow:hidden;
    transition:max-height .3s ease,padding .3s ease;
    padding:0 0 0 40px;
  }
  .faq-item.is-open .faq-panel{max-height:420px;padding-bottom:22px;}
  .faq-panel p{font-size:15px;line-height:1.85;color:var(--text-600);margin:0;}

  /* ---------- 结尾 CTA ---------- */
  .cta-band{
    position:relative;overflow:hidden;
    background-color:var(--ink-900);
    background-image:
      radial-gradient(circle at 22% 18%, rgba(108,70,216,.30) 0, rgba(108,70,216,0) 45%),
      radial-gradient(circle at 84% 78%, rgba(245,185,63,.16) 0, rgba(245,185,63,0) 45%);
    padding:80px 0;text-align:center;
  }
  .cta-band h2{color:#fff;font-size:clamp(22px,2.8vw,32px);line-height:1.35;margin-bottom:16px;}
  .cta-band p{color:rgba(255,255,255,.74);max-width:680px;margin:0 auto 32px;font-size:16px;}
  .cta-actions{display:flex;flex-wrap:wrap;gap:14px;justify-content:center;}

  /* ---------- 页脚 ---------- */
  .site-footer{background:var(--ink-950);color:rgba(255,255,255,.7);padding:72px 0 28px;}
  .footer-grid{
    display:grid;grid-template-columns:1.4fr 1fr 1fr 1.3fr;gap:40px;
    padding-bottom:40px;border-bottom:1px solid rgba(255,255,255,.10);
  }
  .site-footer .brand-name{color:#fff;}
  .site-footer .brand-sub{color:rgba(255,255,255,.55);}
  .footer-about{margin:18px 0 0;font-size:14px;line-height:1.85;color:rgba(255,255,255,.6);}
  .footer-title{font-size:15px;color:#fff;font-weight:600;margin-bottom:16px;}
  .footer-list li{margin-bottom:10px;}
  .footer-list a{font-size:14px;color:rgba(255,255,255,.66);transition:color .2s ease;}
  .footer-list a:hover{color:var(--star-400);}
  .site-footer address{font-size:14px;line-height:2;color:rgba(255,255,255,.6);}
  .footer-bottom{
    display:flex;flex-wrap:wrap;gap:10px;justify-content:space-between;
    padding-top:22px;font-size:13px;color:rgba(255,255,255,.45);
  }
  .footer-bottom p{margin:0;}

  /* ---------- 浮动 CTA ---------- */
  .float-cta{
    position:fixed;right:20px;bottom:20px;z-index:55;
    display:inline-flex;align-items:center;gap:8px;
    height:48px;padding:0 24px;border-radius:var(--r-pill);
    background:var(--violet-600);color:#fff;font-size:15px;font-weight:600;
    box-shadow:0 16px 36px rgba(20,14,40,.28);
    opacity:0;transform:translateY(8px);pointer-events:none;
    transition:opacity .28s ease,transform .28s ease,background .2s ease;
  }
  .float-cta.is-visible{opacity:1;transform:translateY(0);pointer-events:auto;}
  .float-cta:hover{background:var(--violet-500);}
  .float-cta.lift{transform:translateY(-16px);}

  /* ---------- 响应式 ---------- */
  @media (max-width:1279px){
    .container{padding:0 24px;}
  }
  @media (max-width:1023px){
    .section{padding:72px 0;}
    .ability-list{grid-template-columns:1fr;gap:0;}
    .ability-item:nth-child(2),.ability-item:nth-child(4){transform:none;}
    .steps{grid-template-columns:1fr;}
    .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
    .cat-hero{padding:150px 0 76px;}
  }
  @media (max-width:767px){
    .container{padding:0 16px;}
    .header-inner{gap:14px;min-height:64px;}
    .brand-sub{display:none;}
    .header-cta{padding-left:12px;}
    .header-cta .btn{height:36px;padding:0 14px;font-size:13px;}
    .section{padding:56px 0;}
    .seg + .seg{margin-top:56px;padding-top:48px;}
    .cat-hero{padding:132px 0 64px;}
    .hero-lead{font-size:15.5px;}
    .seg p{font-size:16px;}
    .faq-panel{padding-left:0;}
    .faq-item.is-open .faq-panel{max-height:520px;}
    .footer-grid{grid-template-columns:1fr;}
    .site-footer{padding:56px 0 24px;}
    .float-cta{
      right:0;left:0;bottom:0;height:56px;border-radius:var(--r-lg) var(--r-lg) 0 0;
      justify-content:center;padding:0 16px;
    }
    .float-cta.lift{transform:translateY(0);}
  }
  @media (max-width:480px){
    .hero-tag{font-size:12px;}
    .ability-item{gap:14px;padding:22px 0;}
    .seg-figure figcaption{font-size:12px;}
    .faq-q{font-size:16px;gap:10px;}
  }