/* roulang page: index */
:root{
  --c-primary:#5B3FD6;
  --c-primary-2:#3E2AA8;
  --c-accent:#C6F24E;
  --c-accent-2:#16C0A8;
  --c-ink:#14122B;
  --c-bg:#F5F4FA;
  --c-surface:#FFFFFF;
  --c-line:#E4E2F0;
  --c-text:#1B1A2E;
  --c-muted:#5C5A78;
  --r-card:16px;
  --r-btn:10px;
  --r-pill:999px;
  --r-img:12px;
  --sh-card:0 2px 8px rgba(27,26,46,.06);
  --sh-hover:0 12px 28px rgba(91,63,214,.14);
  --sh-dark:0 12px 32px rgba(0,0,0,.35);
  --font:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC","Noto Sans SC",system-ui,sans-serif;
  --max:1240px;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  font-family:var(--font);
  font-size:16px;
  line-height:1.9;
  color:var(--c-text);
  background:var(--c-bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border:0}
a{color:var(--c-primary);text-decoration:none;transition:color .22s ease-out}
a:hover,a:focus{color:var(--c-primary-2)}
button,input,select{font-family:inherit;font-size:inherit}
h1,h2,h3,h4{margin:0;color:var(--c-text);font-weight:700}
p{margin:0 0 1.15em}
p:last-child{margin-bottom:0}
ul{margin:0;padding:0;list-style:none}
:focus-visible{outline:3px solid var(--c-accent);outline-offset:2px}
.container{width:100%;max-width:var(--max);margin:0 auto;padding:0 24px}
section{scroll-margin-top:92px}
.sec{padding:88px 0}
.sec-alt{padding:64px 0}
.sec-head{margin-bottom:42px}
.sec-head p{max-width:62ch;color:var(--c-muted);margin-top:12px}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  background:rgba(22,192,168,.12);
  color:#0E8574;
  border-radius:var(--r-pill);
  padding:6px 14px;
  font-size:13px;font-weight:600;line-height:1.4;
  margin-bottom:16px;
}
.eyebrow::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--c-accent-2)}
h1{font-size:clamp(28px,4.2vw,46px);font-weight:700;line-height:1.28;letter-spacing:-.5px}
h2{font-size:clamp(22px,2.6vw,32px);font-weight:700;line-height:1.35}
h3{font-size:20px;font-weight:600;line-height:1.5}
.lead{font-size:17px;color:var(--c-muted)}

/* 按钮 */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:14px 26px;border-radius:var(--r-btn);
  font-size:15px;font-weight:600;line-height:1;
  border:1.5px solid transparent;cursor:pointer;
  transition:background-color .22s ease-out,color .22s ease-out,transform .22s ease-out,box-shadow .22s ease-out,border-color .22s ease-out;
}
.btn-primary{background:var(--c-primary);color:#fff}
.btn-primary:hover,.btn-primary:focus{background:var(--c-primary-2);color:#fff;transform:translateY(-2px);box-shadow:0 8px 20px rgba(91,63,214,.28)}
.btn-ghost{background:transparent;border-color:var(--c-primary);color:var(--c-primary)}
.btn-ghost:hover,.btn-ghost:focus{background:rgba(91,63,214,.08);color:var(--c-primary-2)}
.btn-accent{background:var(--c-accent);color:var(--c-ink)}
.btn-accent:hover,.btn-accent:focus{background:#d8ff6b;color:var(--c-ink);transform:translateY(-2px)}
.btn-text{background:none;border:0;padding:0;color:var(--c-primary);font-weight:600;display:inline-flex;align-items:center;gap:6px}
.btn-text span{transition:transform .22s ease-out}
.btn-text:hover span,.btn-text:focus span{transform:translateX(3px)}
.btn-sm{padding:11px 20px;font-size:14px}
.btn-block{width:100%}

/* 徽章 */
.badge{display:inline-flex;align-items:center;gap:6px;border-radius:var(--r-pill);padding:5px 12px;font-size:13px;font-weight:600;line-height:1.5}
.badge-soft{background:rgba(22,192,168,.14);color:#0E8574}
.badge-cat{background:rgba(91,63,214,.08);color:var(--c-primary)}
.badge-lime{background:var(--c-accent);color:var(--c-ink)}
.badge-dark{background:rgba(255,255,255,.1);color:#fff}

/* 顶部导航 */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(245,244,250,.86);
  border-bottom:1px solid transparent;
  transition:background-color .24s ease-out,box-shadow .24s ease-out,border-color .24s ease-out;
}
.site-header.is-stuck{background:#fff;border-bottom-color:var(--c-line);box-shadow:0 4px 16px rgba(27,26,46,.06)}
.nav-wrap{display:flex;align-items:center;justify-content:space-between;height:64px;gap:20px}
.nav-left,.nav-right{display:flex;align-items:center;gap:18px;min-width:0}
.brand{display:inline-flex;align-items:center;gap:10px;color:var(--c-text);font-weight:700;font-size:17px;letter-spacing:-.2px;white-space:nowrap}
.brand:hover{color:var(--c-primary)}
.brand-mark{width:24px;height:24px;border-radius:8px;background:linear-gradient(135deg,var(--c-primary),var(--c-accent-2));flex:0 0 auto;position:relative}
.brand-mark::after{content:"";position:absolute;inset:7px;border-radius:3px;background:rgba(255,255,255,.85)}
.nav-links{display:flex;align-items:center;gap:6px}
.nav-link{
  position:relative;padding:10px 12px;border-radius:8px;
  color:var(--c-muted);font-size:15px;font-weight:500;white-space:nowrap;
  transition:color .2s ease-out,background-color .2s ease-out;
}
.nav-link:hover{color:var(--c-primary);background:rgba(91,63,214,.06)}
.nav-link.is-active{color:var(--c-primary);font-weight:600}
.nav-link.is-active::after{content:"";position:absolute;left:12px;right:12px;bottom:2px;height:2px;border-radius:2px;background:var(--c-primary)}
.nav-link.is-active::before{content:"";position:absolute;left:5px;top:50%;width:5px;height:5px;border-radius:50%;background:var(--c-accent);transform:translateY(-50%)}
.nav-search{display:flex;align-items:center;background:#fff;border:1px solid var(--c-line);border-radius:var(--r-pill);padding:4px 4px 4px 16px;transition:border-color .2s ease-out,box-shadow .2s ease-out}
.nav-search:focus-within{border-color:var(--c-primary);box-shadow:0 0 0 3px rgba(91,63,214,.12)}
.nav-search input{border:0;outline:none;background:transparent;width:172px;font-size:14px;color:var(--c-text);padding:6px 0}
.nav-search input::placeholder{color:#9C9AB4}
.nav-search button{border:0;cursor:pointer;background:var(--c-primary);color:#fff;border-radius:var(--r-pill);padding:7px 14px;font-size:13px;font-weight:600;transition:background-color .2s ease-out}
.nav-search button:hover{background:var(--c-primary-2)}
.nav-toggle{display:none;width:42px;height:42px;border:1px solid var(--c-line);background:#fff;border-radius:10px;cursor:pointer;padding:0;position:relative}
.nav-toggle span{position:absolute;left:11px;right:11px;height:2px;border-radius:2px;background:var(--c-text);transition:transform .22s ease-out,opacity .22s ease-out}
.nav-toggle span:nth-child(1){top:14px}
.nav-toggle span:nth-child(2){top:20px}
.nav-toggle span:nth-child(3){top:26px}
.nav-toggle.is-open span:nth-child(1){transform:translateY(6px) rotate(45deg)}
.nav-toggle.is-open span:nth-child(2){opacity:0}
.nav-toggle.is-open span:nth-child(3){transform:translateY(-6px) rotate(-45deg)}
.mobile-drawer{
  display:none;position:absolute;left:0;right:0;top:100%;
  background:#fff;border-top:1px solid var(--c-line);
  box-shadow:0 12px 28px rgba(27,26,46,.1);
  padding:14px 24px 22px;
}
.mobile-drawer.is-open{display:block}
.mobile-drawer a{display:block;padding:13px 4px;color:var(--c-text);font-weight:500;border-bottom:1px solid var(--c-line)}
.mobile-drawer a:hover{color:var(--c-primary)}
.mobile-drawer .btn{margin-top:16px}

/* Hero */
.hero{padding:40px 0 56px;position:relative;overflow:hidden}
.hero::before{
  content:"";position:absolute;inset:0 0 auto 0;height:520px;
  background:radial-gradient(720px 320px at 12% 0%,rgba(91,63,214,.10),transparent 70%);
  pointer-events:none;
}
.hero-grid{position:relative;align-items:center}
.hero-copy h1{margin-bottom:18px}
.hero-copy .lead{margin-bottom:26px;max-width:52ch}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:26px}
.hero-points{display:flex;flex-wrap:wrap;gap:10px}
.hero-visual{position:relative}
.hero-shot{position:relative;border-radius:20px;overflow:hidden;box-shadow:0 18px 44px rgba(27,26,46,.18)}
.hero-shot img{width:100%;height:100%;aspect-ratio:16/10;object-fit:cover}
.hero-shot::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(20,18,43,.06),rgba(20,18,43,.25))}
.status-card{
  position:absolute;right:18px;bottom:18px;
  background:#fff;border-radius:14px;padding:14px 18px;
  box-shadow:0 14px 34px rgba(20,18,43,.28);
  display:flex;align-items:center;gap:12px;
  animation:floaty 4.5s ease-in-out infinite;
}
@keyframes floaty{0%,100%{transform:translateY(0)}50%{transform:translateY(-6px)}}
.status-dot{width:10px;height:10px;border-radius:50%;background:var(--c-accent-2);box-shadow:0 0 0 4px rgba(22,192,168,.18);flex:0 0 auto}
.status-card strong{display:block;font-size:15px;font-weight:600;line-height:1.4}
.status-card small{display:block;font-size:12px;color:var(--c-muted);line-height:1.5}
.anchor-strip{
  display:flex;gap:10px;overflow-x:auto;margin-top:44px;padding-bottom:6px;
  scrollbar-width:none;-ms-overflow-style:none;
}
.anchor-strip::-webkit-scrollbar{display:none}
.anchor-strip a{
  flex:0 0 auto;padding:9px 18px;border-radius:var(--r-pill);
  background:#fff;border:1px solid var(--c-line);
  color:var(--c-muted);font-size:14px;font-weight:500;
  transition:color .2s ease-out,border-color .2s ease-out,transform .2s ease-out,box-shadow .2s ease-out;
}
.anchor-strip a:hover{color:var(--c-primary);border-color:rgba(91,63,214,.4);transform:translateY(-2px);box-shadow:var(--sh-card)}

/* 卡片基座 */
.card{background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-card);padding:24px;box-shadow:var(--sh-card);transition:transform .24s ease-out,box-shadow .24s ease-out,border-color .24s ease-out}
.card:hover{transform:translateY(-3px);box-shadow:var(--sh-hover);border-color:rgba(91,63,214,.22)}
.card h3{margin-bottom:10px}
.card p{color:var(--c-muted);font-size:15px;line-height:1.75}
.card-ico{width:42px;height:42px;border-radius:12px;border:1.5px solid rgba(91,63,214,.35);display:flex;align-items:center;justify-content:center;color:var(--c-primary);font-weight:700;font-size:15px;margin-bottom:16px;background:rgba(91,63,214,.05)}
.card-media{border-radius:var(--r-img);overflow:hidden;margin-bottom:18px}
.card-media img{width:100%;aspect-ratio:16/9;object-fit:cover}
.card-list{margin-top:14px;display:grid;gap:8px}
.card-list li{position:relative;padding-left:18px;font-size:14px;color:var(--c-muted);line-height:1.7}
.card-list li::before{content:"";position:absolute;left:0;top:11px;width:7px;height:7px;border-radius:2px;background:var(--c-accent-2)}
.feature-grid{row-gap:24px}

/* 流程 */
.demo-wrap{row-gap:34px;align-items:center}
.demo-shots{position:relative;padding-right:24px}
.demo-shots .main-shot{border-radius:var(--r-card);overflow:hidden;border:1px solid var(--c-line);box-shadow:0 10px 26px rgba(27,26,46,.12)}
.demo-shots .main-shot img{width:100%;aspect-ratio:4/3;object-fit:cover}
.demo-shots .sub-shot{
  position:absolute;right:0;bottom:-24px;width:56%;
  border-radius:var(--r-img);overflow:hidden;border:4px solid #fff;box-shadow:0 14px 30px rgba(27,26,46,.18);
}
.demo-shots .sub-shot img{width:100%;aspect-ratio:16/10;object-fit:cover}
.steps{position:relative;padding-left:6px}
.step{position:relative;padding:0 0 26px 34px}
.step::before{content:"";position:absolute;left:8px;top:22px;bottom:-4px;width:2px;background:linear-gradient(180deg,var(--c-primary),rgba(91,63,214,.15))}
.step:last-child{padding-bottom:0}
.step:last-child::before{display:none}
.step-num{
  position:absolute;left:0;top:6px;width:18px;height:18px;border-radius:50%;
  background:var(--c-accent);border:3px solid #fff;box-shadow:0 0 0 2px rgba(91,63,214,.28);
}
.step h3{margin-bottom:6px;font-size:18px}
.step p{color:var(--c-muted);font-size:15px;line-height:1.75}

/* 证据 */
.stats{display:grid;grid-template-columns:repeat(4,1fr);gap:18px;margin-bottom:34px}
.stat{background:#fff;border:1px solid var(--c-line);border-radius:var(--r-card);padding:22px;text-align:left;box-shadow:var(--sh-card)}
.stat b{display:block;font-size:32px;font-weight:700;line-height:1.2;color:var(--c-primary)}
.stat span{display:block;font-size:13px;color:var(--c-muted);margin-top:6px}
.voices{row-gap:24px;margin-bottom:34px}
.voice{display:flex;gap:16px;align-items:flex-start}
.avatar{width:48px;height:48px;border-radius:50%;background:linear-gradient(135deg,rgba(91,63,214,.18),rgba(22,192,168,.24));flex:0 0 auto;display:flex;align-items:center;justify-content:center;font-weight:700;color:var(--c-primary)}
.voice h4{font-size:15px;margin-bottom:4px}
.voice p{font-size:14px;color:var(--c-muted);line-height:1.75;margin-bottom:6px}
.stars{color:#F2B01E;font-size:13px;letter-spacing:2px}
.trust-band{display:flex;flex-wrap:wrap;gap:12px;align-items:center;padding:20px 24px;border:1px dashed var(--c-line);border-radius:var(--r-card);background:rgba(255,255,255,.6)}
.trust-band span{
  font-size:13px;font-weight:600;color:#9C9AB4;padding:7px 14px;border-radius:var(--r-pill);
  background:#fff;border:1px solid var(--c-line);
  transition:color .22s ease-out,border-color .22s ease-out,transform .22s ease-out;
}
.trust-band span:hover{color:var(--c-primary);border-color:rgba(91,63,214,.4);transform:translateY(-2px)}

/* 资讯列表 */
.news-head{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;flex-wrap:wrap}
.news-grid{row-gap:26px}
.news-card{
  display:flex;flex-direction:column;height:100%;
  background:#fff;border:1px solid var(--c-line);border-radius:var(--r-card);
  overflow:hidden;box-shadow:var(--sh-card);
  transition:transform .24s ease-out,box-shadow .24s ease-out,border-color .24s ease-out;
}
.news-card:hover{transform:translateY(-3px);box-shadow:var(--sh-hover);border-color:rgba(91,63,214,.22)}
.news-cover{position:relative;display:block;overflow:hidden;background:#EDECF5}
.news-cover img{width:100%;aspect-ratio:16/9;object-fit:cover;transition:transform .28s ease-out}
.news-card:hover .news-cover img{transform:scale(1.03)}
.news-cover .badge{position:absolute;left:12px;top:12px}
.news-body{padding:20px 22px 22px;display:flex;flex-direction:column;flex:1}
.news-body h3{font-size:18px;line-height:1.5;margin-bottom:10px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.news-body h3 a{color:var(--c-text)}
.news-body h3 a:hover{color:var(--c-primary)}
.news-body p{font-size:14px;color:var(--c-muted);line-height:1.75;margin-bottom:16px;display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden}
.news-meta{margin-top:auto;display:flex;align-items:center;justify-content:space-between;gap:12px;font-size:13px;color:var(--c-muted);border-top:1px solid var(--c-line);padding-top:14px}
.news-meta a{font-weight:600;display:inline-flex;align-items:center;gap:5px}
.news-meta a span{transition:transform .2s ease-out}
.news-meta a:hover span{transform:translateX(3px)}
.empty-state{
  text-align:center;padding:56px 24px;background:#fff;border:1px dashed var(--c-line);border-radius:var(--r-card);
}
.empty-state .empty-ico{width:56px;height:56px;border-radius:50%;background:rgba(91,63,214,.08);color:var(--c-primary);display:flex;align-items:center;justify-content:center;font-size:24px;margin:0 auto 16px}
.empty-state p{color:var(--c-muted);margin-bottom:18px}

/* 价格 */
.price-grid{row-gap:26px;align-items:stretch}
.price-card{display:flex;flex-direction:column;height:100%;position:relative;background:#fff;border:1px solid var(--c-line);border-radius:var(--r-card);padding:30px 26px;box-shadow:var(--sh-card);transition:transform .24s ease-out,box-shadow .24s ease-out,border-color .24s ease-out}
.price-card:hover{transform:translateY(-3px);box-shadow:var(--sh-hover)}
.price-card.featured{border-color:var(--c-primary);box-shadow:0 14px 32px rgba(91,63,214,.16);transform:scale(1.02)}
.price-card.featured:hover{transform:scale(1.02) translateY(-3px)}
.price-card .badge{position:absolute;top:-13px;left:26px}
.price-card h3{margin-bottom:6px}
.price-card .price-desc{font-size:14px;color:var(--c-muted);margin-bottom:18px}
.price-num{display:flex;align-items:baseline;gap:6px;margin-bottom:22px}
.price-num b{font-size:36px;font-weight:700;color:var(--c-ink);line-height:1}
.price-num small{font-size:13px;color:var(--c-muted)}
.price-feats{display:grid;gap:11px;margin-bottom:26px}
.price-feats li{position:relative;padding-left:26px;font-size:14.5px;color:var(--c-muted);line-height:1.7}
.price-feats li::before{
  content:"";position:absolute;left:0;top:8px;width:16px;height:16px;border-radius:50%;
  background:rgba(22,192,168,.16);
}
.price-feats li::after{
  content:"";position:absolute;left:5px;top:13px;width:6px;height:3px;border-left:1.5px solid var(--c-accent-2);border-bottom:1.5px solid var(--c-accent-2);transform:rotate(-45deg);
}
.price-card .btn{margin-top:auto}

/* FAQ */
.faq-wrap{max-width:880px;margin:0 auto}
.faq-item{background:#fff;border:1px solid var(--c-line);border-radius:var(--r-card);margin-bottom:14px;overflow:hidden;transition:border-color .22s ease-out,box-shadow .22s ease-out}
.faq-item.is-open{border-color:rgba(91,63,214,.35);box-shadow:var(--sh-card)}
.faq-q{
  width:100%;text-align:left;background:none;border:0;cursor:pointer;
  padding:20px 24px;font-size:16px;font-weight:600;color:var(--c-text);
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  position:relative;
}
.faq-q::before{content:"";position:absolute;left:0;top:12px;bottom:12px;width:3px;background:var(--c-primary);transform:scaleY(0);transform-origin:top;transition:transform .24s ease-out}
.faq-item.is-open .faq-q::before{transform:scaleY(1)}
.faq-q i{flex:0 0 auto;width:22px;height:22px;border-radius:50%;background:rgba(91,63,214,.08);color:var(--c-primary);font-style:normal;font-size:16px;line-height:22px;text-align:center;transition:transform .24s ease-out,background-color .24s ease-out}
.faq-item.is-open .faq-q i{transform:rotate(45deg);background:var(--c-accent);color:var(--c-ink)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .28s ease-out}
.faq-a p{padding:0 24px 22px;color:var(--c-muted);font-size:15px;line-height:1.8;margin:0}

/* 结尾 CTA */
.cta-band{
  position:relative;background:var(--c-ink);color:#fff;border-radius:24px;overflow:hidden;
  padding:64px 32px;text-align:center;
}
.cta-band::before{
  content:"";position:absolute;inset:0;background-image:url(/assets/images/backpic/back-2.png);
  background-size:cover;background-position:center;opacity:.12;
}
.cta-band-inner{position:relative;max-width:900px;margin:0 auto}
.cta-band h2{color:#fff;margin-bottom:14px}
.cta-band p{color:rgba(255,255,255,.74);max-width:60ch;margin:0 auto 28px}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;justify-content:center}

/* 页脚 */
.site-footer{background:var(--c-ink);color:rgba(255,255,255,.72);margin-top:88px;padding:64px 0 0}
.footer-grid{row-gap:34px;padding-bottom:44px}
.site-footer h4{color:#fff;font-size:15px;font-weight:600;margin-bottom:16px}
.site-footer p{font-size:14px;line-height:1.8;color:rgba(255,255,255,.62)}
.footer-brand{display:inline-flex;align-items:center;gap:10px;color:#fff;font-weight:700;font-size:17px;margin-bottom:14px}
.footer-brand:hover{color:var(--c-accent)}
.footer-brand .brand-mark{background:linear-gradient(135deg,var(--c-accent),var(--c-accent-2))}
.footer-links li{margin-bottom:10px}
.footer-links a{color:rgba(255,255,255,.72);font-size:14px}
.footer-links a:hover{color:var(--c-accent)}
.footer-bottom{border-top:1px solid rgba(255,255,255,.12);padding:20px 0;display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;font-size:13px;color:rgba(255,255,255,.5)}

/* 浮动 CTA */
.float-cta{
  position:fixed;right:24px;bottom:24px;z-index:70;
  display:flex;align-items:center;gap:14px;
  background:#fff;border:1px solid var(--c-line);border-radius:var(--r-pill);
  padding:10px 12px 10px 20px;box-shadow:0 14px 34px rgba(27,26,46,.16);
  opacity:0;transform:translateY(14px);pointer-events:none;
  transition:opacity .24s ease-out,transform .24s ease-out;
}
.float-cta.is-visible{opacity:1;transform:translateY(0);pointer-events:auto}
.float-cta small{font-size:12px;color:var(--c-muted);line-height:1.4;display:block}

/* 响应式 */
@media screen and (max-width:1024px){
  .nav-links{display:none}
  .nav-search{display:none}
  .nav-toggle{display:block}
  .sec{padding:64px 0}
  .sec-alt{padding:56px 0}
  .stats{grid-template-columns:repeat(2,1fr)}
  .hero{padding-top:28px}
  .price-card.featured{transform:none;order:-1}
  .price-card.featured:hover{transform:translateY(-3px)}
}
@media screen and (max-width:640px){
  body{padding-bottom:76px}
  .container{padding:0 18px}
  .sec,.sec-alt{padding:48px 0}
  .nav-wrap{height:56px}
  .brand{font-size:16px}
  .hero-copy .lead{font-size:16px}
  .hero-actions .btn{flex:1 1 100%}
  .hero-shot img{aspect-ratio:4/3}
  .status-card{right:12px;bottom:12px;padding:11px 14px}
  .stats{grid-template-columns:1fr 1fr;gap:12px}
  .stat b{font-size:26px}
  .demo-shots{padding-right:0;margin-bottom:34px}
  .demo-shots .sub-shot{position:static;width:100%;margin-top:12px;border-width:0;box-shadow:none}
  .demo-shots .sub-shot img{border-radius:var(--r-img)}
  .cta-band{padding:44px 20px;border-radius:18px}
  .cta-actions .btn{flex:1 1 100%}
  .float-cta{
    left:0;right:0;bottom:0;border-radius:0;border:0;border-top:1px solid var(--c-line);
    padding:9px 14px;gap:10px;justify-content:space-between;background:#fff;
  }
  .float-cta .btn{flex:0 0 70%;padding:12px 16px}
  .float-cta small{font-size:11px}
  .footer-bottom{flex-direction:column;gap:6px}
}

/* roulang page: category1 */
:root{
  --c-primary:#5B3FD6;
  --c-primary-2:#3E2AA8;
  --c-accent:#C6F24E;
  --c-accent-2:#16C0A8;
  --c-ink:#14122B;
  --c-bg:#F5F4FA;
  --c-surface:#FFFFFF;
  --c-line:#E4E2F0;
  --c-text:#1B1A2E;
  --c-muted:#5C5A78;
  --r-card:16px;
  --r-btn:10px;
  --r-img:12px;
  --sh-card:0 2px 8px rgba(27,26,46,.06);
  --sh-hover:0 12px 28px rgba(91,63,214,.14);
  --sh-dark:0 12px 32px rgba(0,0,0,.35);
  --font:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC","Noto Sans SC",system-ui,sans-serif;
  --maxw:1240px;
  --nav-h:64px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:var(--font);
  font-size:16px;
  line-height:1.9;
  color:var(--c-text);
  background:var(--c-bg);
  padding-bottom:0;
}
img{max-width:100%;display:block;height:auto;}
a{color:var(--c-primary);text-decoration:none;background-color:transparent;}
a:hover{color:var(--c-primary-2);}
h1,h2,h3,h4{margin:0;color:var(--c-text);font-family:var(--font);}
p{margin:0 0 1.15em;}
ul{margin:0;padding:0;list-style:none;}
button{font-family:inherit;}
:focus-visible{outline:3px solid var(--c-accent);outline-offset:2px;}
.container{
  width:100%;
  max-width:var(--maxw);
  margin:0 auto;
  padding-left:24px;
  padding-right:24px;
}
.section{padding:88px 0;}
.section-sm{padding:64px 0;}
.section-head{max-width:760px;margin-bottom:40px;}
.section-head p{max-width:62ch;color:var(--c-muted);margin-bottom:0;}
.eyebrow{
  display:inline-block;
  padding:4px 14px;
  border-radius:999px;
  background:rgba(22,192,168,.14);
  color:#0E8C7C;
  font-size:13px;
  line-height:1.6;
  font-weight:600;
  margin-bottom:16px;
}
h1{font-size:clamp(28px,4.2vw,46px);font-weight:700;line-height:1.28;letter-spacing:-.5px;}
h2{font-size:clamp(22px,2.6vw,32px);font-weight:700;line-height:1.35;}
h3{font-size:20px;font-weight:600;line-height:1.5;}
.muted{color:var(--c-muted);}
.aux{font-size:13px;line-height:1.6;color:var(--c-muted);}

/* ---------- Buttons ---------- */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  padding:14px 26px;
  border-radius:var(--r-btn);
  font-size:15px;
  font-weight:600;
  line-height:1;
  border:1.5px solid transparent;
  cursor:pointer;
  transition:all .24s ease-out;
  white-space:nowrap;
}
.btn-primary{background:var(--c-primary);color:#fff;box-shadow:0 2px 8px rgba(91,63,214,.18);}
.btn-primary:hover{background:var(--c-primary-2);color:#fff;transform:translateY(-2px);box-shadow:0 8px 20px rgba(91,63,214,.28);}
.btn-ghost{background:transparent;border-color:var(--c-primary);color:var(--c-primary);}
.btn-ghost:hover{background:rgba(91,63,214,.08);color:var(--c-primary-2);border-color:var(--c-primary-2);}
.btn-lime{background:var(--c-accent);color:var(--c-ink);}
.btn-lime:hover{background:#B6E23A;color:var(--c-ink);transform:translateY(-2px);box-shadow:0 8px 20px rgba(0,0,0,.25);}
.btn-sm{padding:10px 18px;font-size:14px;}
.btn-block{width:100%;}
.text-link{display:inline-flex;align-items:center;gap:6px;font-weight:600;color:var(--c-primary);font-size:15px;}
.text-link .arrow{transition:transform .22s ease-out;}
.text-link:hover .arrow{transform:translateX(3px);}

/* ---------- Header / Nav ---------- */
.site-header{
  position:sticky;
  top:0;
  z-index:60;
  background:rgba(245,244,250,.94);
  backdrop-filter:blur(10px);
  border-bottom:1px solid transparent;
  transition:background .24s ease-out,box-shadow .24s ease-out,border-color .24s ease-out;
}
.site-header.is-scrolled{
  background:#fff;
  border-bottom:1px solid var(--c-line);
  box-shadow:0 4px 16px rgba(27,26,46,.06);
}
.nav-inner{
  display:flex;
  align-items:center;
  gap:28px;
  height:var(--nav-h);
}
.brand{
  display:inline-flex;
  align-items:center;
  gap:10px;
  font-size:17px;
  font-weight:700;
  color:var(--c-text);
  letter-spacing:-.2px;
  flex:none;
}
.brand:hover{color:var(--c-primary);}
.brand-mark{
  width:24px;height:24px;border-radius:8px;
  background:linear-gradient(135deg,var(--c-primary) 0%,var(--c-accent-2) 100%);
  display:inline-block;
  flex:none;
}
.nav-links{display:flex;align-items:center;gap:6px;}
.nav-link{
  position:relative;
  padding:8px 12px;
  font-size:15px;
  font-weight:500;
  color:var(--c-muted);
  border-radius:8px;
  transition:color .2s ease-out,background .2s ease-out;
}
.nav-link:hover{color:var(--c-primary);background:rgba(91,63,214,.06);}
.nav-link.is-active{color:var(--c-primary);font-weight:600;}
.nav-link.is-active::after{
  content:"";
  position:absolute;
  left:12px;right:12px;bottom:0;
  height:2px;
  background:var(--c-primary);
  border-radius:2px;
}
.nav-link.is-active::before{
  content:"";
  position:absolute;
  right:6px;top:6px;
  width:6px;height:6px;
  border-radius:50%;
  background:var(--c-accent);
}
.nav-right{margin-left:auto;display:flex;align-items:center;gap:14px;}
.nav-search{
  display:flex;
  align-items:center;
  gap:8px;
  background:#fff;
  border:1px solid var(--c-line);
  border-radius:999px;
  padding:7px 14px;
  transition:border-color .2s ease-out,box-shadow .2s ease-out;
}
.nav-search:focus-within{border-color:var(--c-primary);box-shadow:0 0 0 3px rgba(91,63,214,.12);}
.nav-search input{
  border:0;
  outline:0;
  background:transparent;
  font-size:14px;
  width:150px;
  color:var(--c-text);
  font-family:inherit;
}
.nav-search input::placeholder{color:#9B99B4;}
.nav-search .search-icon{
  width:15px;height:15px;border:1.8px solid var(--c-muted);border-radius:50%;position:relative;flex:none;
}
.nav-search .search-icon::after{
  content:"";position:absolute;right:-4px;bottom:-3px;width:7px;height:1.8px;background:var(--c-muted);transform:rotate(45deg);border-radius:2px;
}
.nav-toggle{
  display:none;
  width:42px;height:42px;
  border:1px solid var(--c-line);
  background:#fff;
  border-radius:10px;
  cursor:pointer;
  padding:0;
  align-items:center;
  justify-content:center;
}
.nav-toggle span{
  display:block;width:18px;height:2px;background:var(--c-text);position:relative;border-radius:2px;
}
.nav-toggle span::before,.nav-toggle span::after{
  content:"";position:absolute;left:0;width:18px;height:2px;background:var(--c-text);border-radius:2px;
}
.nav-toggle span::before{top:-6px;}
.nav-toggle span::after{top:6px;}
.nav-drawer{
  display:none;
  background:#fff;
  border-bottom:1px solid var(--c-line);
  padding:12px 0 22px;
  box-shadow:0 12px 28px rgba(27,26,46,.08);
}
.nav-drawer.is-open{display:block;}
.nav-drawer a{
  display:block;
  padding:13px 24px;
  color:var(--c-text);
  font-size:16px;
  border-bottom:1px solid var(--c-line);
}
.nav-drawer a:last-of-type{border-bottom:0;}
.nav-drawer a.is-active{color:var(--c-primary);font-weight:600;border-left:3px solid var(--c-primary);}
.nav-drawer .drawer-cta{padding:18px 24px 0;}

/* ---------- Page hero band ---------- */
.page-hero{
  background:linear-gradient(180deg,rgba(91,63,214,.09) 0%,rgba(91,63,214,.04) 70%,var(--c-bg) 100%);
  padding:56px 0 48px;
  border-bottom:1px solid var(--c-line);
}
.crumbs{
  display:flex;
  align-items:center;
  flex-wrap:wrap;
  gap:8px;
  font-size:13px;
  color:var(--c-muted);
  margin-bottom:18px;
}
.crumbs a{color:var(--c-muted);}
.crumbs a:hover{color:var(--c-primary);}
.crumbs .sep{color:#BDBBD0;}
.crumbs .current{color:var(--c-muted);}
.page-hero h1{max-width:22ch;}
.page-hero .lead{
  margin:18px 0 0;
  font-size:17px;
  line-height:1.85;
  color:var(--c-muted);
  max-width:62ch;
}
.hero-meta{
  display:flex;
  flex-wrap:wrap;
  gap:10px;
  margin-top:24px;
}
.tag{
  display:inline-flex;
  align-items:center;
  gap:6px;
  padding:5px 13px;
  border-radius:999px;
  font-size:13px;
  font-weight:600;
  line-height:1.6;
}
.tag-primary{background:rgba(91,63,214,.08);color:var(--c-primary);}
.tag-teal{background:rgba(22,192,168,.14);color:#0E8C7C;}
.tag-lime{background:rgba(198,242,78,.35);color:#4E6B00;}

/* ---------- Filter bar ---------- */
.filter-bar{
  display:flex;
  gap:10px;
  overflow-x:auto;
  padding:6px 0 10px;
  margin-bottom:34px;
  scrollbar-width:none;
}
.filter-bar::-webkit-scrollbar{display:none;}
.filter-chip{
  flex:none;
  padding:9px 20px;
  border-radius:999px;
  border:1px solid var(--c-line);
  background:#fff;
  color:var(--c-muted);
  font-size:14px;
  font-weight:600;
  cursor:pointer;
  transition:all .22s ease-out;
}
.filter-chip:hover{border-color:var(--c-primary);color:var(--c-primary);}
.filter-chip.is-active{
  background:var(--c-primary);
  border-color:var(--c-primary);
  color:#fff;
  box-shadow:0 6px 16px rgba(91,63,214,.22);
}

/* ---------- Entry cards ---------- */
.card-grid{margin-bottom:-24px;}
.entry-card{
  height:100%;
  display:flex;
  flex-direction:column;
  background:var(--c-surface);
  border:1px solid var(--c-line);
  border-radius:var(--r-card);
  box-shadow:var(--sh-card);
  padding:18px 20px 22px;
  margin-bottom:24px;
  transition:transform .24s ease-out,box-shadow .24s ease-out,border-color .24s ease-out;
}
.entry-card:hover{
  transform:translateY(-3px);
  box-shadow:var(--sh-hover);
  border-color:rgba(91,63,214,.35);
}
.entry-thumb{
  position:relative;
  border-radius:var(--r-img);
  overflow:hidden;
  margin-bottom:16px;
}
.entry-thumb img{
  width:100%;
  aspect-ratio:16/9;
  object-fit:cover;
  transition:transform .24s ease-out;
}
.entry-card:hover .entry-thumb img{transform:scale(1.03);}
.entry-thumb .thumb-tag{
  position:absolute;
  left:12px;top:12px;
}
.entry-card h3{margin-bottom:10px;font-size:19px;}
.entry-card .desc{
  font-size:15px;
  line-height:1.75;
  color:var(--c-muted);
  margin-bottom:18px;
  display:-webkit-box;
  -webkit-line-clamp:2;
  -webkit-box-orient:vertical;
  overflow:hidden;
}
.entry-meta{
  margin-top:auto;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:12px;
  padding-top:14px;
  border-top:1px solid var(--c-line);
  font-size:13px;
  color:var(--c-muted);
}
.entry-meta .arrow{color:var(--c-primary);font-weight:700;transition:transform .22s ease-out;}
.entry-card:hover .entry-meta .arrow{transform:translateX(4px);}

/* ---------- Compare block ---------- */
.compare{
  background:var(--c-surface);
  border:1px solid var(--c-line);
  border-radius:var(--r-card);
  box-shadow:var(--sh-card);
  overflow:hidden;
}
.compare-inner{align-items:center;}
.compare-copy{padding:44px 40px;}
.compare-copy h2{margin-bottom:16px;}
.compare-copy > p{color:var(--c-muted);max-width:52ch;}
.check-list{margin-top:22px;}
.check-list li{
  position:relative;
  padding-left:30px;
  margin-bottom:12px;
  font-size:15px;
  line-height:1.75;
  color:var(--c-text);
}
.check-list li::before{
  content:"";
  position:absolute;
  left:0;top:9px;
  width:14px;height:14px;
  border-radius:4px;
  background:rgba(91,63,214,.12);
  border:1.5px solid var(--c-primary);
}
.check-list li::after{
  content:"";
  position:absolute;
  left:4px;top:13px;
  width:6px;height:3px;
  border-left:2px solid var(--c-primary);
  border-bottom:2px solid var(--c-primary);
  transform:rotate(-45deg);
}
.compare-figure{padding:0;}
.compare-figure img{
  width:100%;
  height:100%;
  min-height:300px;
  object-fit:cover;
}

/* ---------- FAQ ---------- */
.faq-list{
  background:var(--c-surface);
  border:1px solid var(--c-line);
  border-radius:var(--r-card);
  box-shadow:var(--sh-card);
  overflow:hidden;
}
.faq-item + .faq-item{border-top:1px solid var(--c-line);}
.faq-q{
  width:100%;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  text-align:left;
  padding:22px 26px;
  background:transparent;
  border:0;
  border-left:3px solid transparent;
  font-size:16px;
  font-weight:600;
  color:var(--c-text);
  cursor:pointer;
  transition:background .2s ease-out,border-color .2s ease-out,color .2s ease-out;
}
.faq-q:hover{background:rgba(91,63,214,.04);color:var(--c-primary);}
.faq-item.is-open .faq-q{
  border-left-color:var(--c-primary);
  color:var(--c-primary);
  background:rgba(91,63,214,.04);
}
.faq-icon{
  flex:none;
  width:22px;height:22px;
  position:relative;
  border-radius:50%;
  background:rgba(91,63,214,.10);
  transition:transform .24s ease-out,background .24s ease-out;
}
.faq-icon::before,.faq-icon::after{
  content:"";position:absolute;background:var(--c-primary);border-radius:2px;
}
.faq-icon::before{left:6px;top:10px;width:10px;height:2px;}
.faq-icon::after{left:10px;top:6px;width:2px;height:10px;}
.faq-item.is-open .faq-icon{background:rgba(91,63,214,.18);}
.faq-item.is-open .faq-icon::after{display:none;}
.faq-a{
  max-height:0;
  overflow:hidden;
  transition:max-height .28s ease-out;
}
.faq-a-inner{
  padding:0 26px 24px 29px;
  font-size:15px;
  line-height:1.8;
  color:var(--c-muted);
}
.faq-a-inner p:last-child{margin-bottom:0;}

/* ---------- CTA band ---------- */
.cta-band{
  position:relative;
  background-image:linear-gradient(rgba(20,18,43,.94),rgba(20,18,43,.94)),url('/assets/images/backpic/back-2.png');
  background-size:cover;
  background-position:center;
  color:#fff;
  padding:80px 0;
}
.cta-inner{max-width:900px;margin:0 auto;text-align:center;}
.cta-inner h2{color:#fff;margin-bottom:16px;}
.cta-inner p{color:rgba(255,255,255,.78);margin-bottom:30px;}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;justify-content:center;}
.cta-band .tag-lime{margin-bottom:18px;}

/* ---------- Float CTA ---------- */
.float-cta{
  position:fixed;
  right:28px;
  bottom:28px;
  z-index:70;
  display:flex;
  align-items:center;
  gap:12px;
  padding:10px 12px 10px 18px;
  background:#fff;
  border:1px solid var(--c-line);
  border-radius:999px;
  box-shadow:0 12px 32px rgba(27,26,46,.16);
  opacity:0;
  transform:translateY(14px);
  pointer-events:none;
  transition:opacity .24s ease-out,transform .24s ease-out;
}
.float-cta.is-visible{opacity:1;transform:translateY(0);pointer-events:auto;}
.float-cta .float-text{font-size:12px;line-height:1.4;color:var(--c-muted);max-width:130px;}

/* ---------- Footer ---------- */
.site-footer{
  background:var(--c-ink);
  color:rgba(255,255,255,.72);
  padding:64px 0 28px;
  font-size:14px;
  line-height:1.8;
}
.footer-grid{margin-bottom:36px;}
.site-footer h4{
  color:#fff;
  font-size:15px;
  font-weight:600;
  margin-bottom:16px;
}
.footer-brand{
  display:inline-flex;
  align-items:center;
  gap:10px;
  color:#fff;
  font-size:17px;
  font-weight:700;
  margin-bottom:14px;
}
.footer-brand:hover{color:var(--c-accent);}
.site-footer p{margin-bottom:12px;color:rgba(255,255,255,.62);}
.footer-links li{margin-bottom:10px;}
.footer-links a{color:rgba(255,255,255,.72);transition:color .2s ease-out;}
.footer-links a:hover{color:var(--c-accent);}
.footer-bottom{
  display:flex;
  flex-wrap:wrap;
  justify-content:space-between;
  gap:10px;
  padding-top:22px;
  border-top:1px solid rgba(255,255,255,.12);
  font-size:13px;
  color:rgba(255,255,255,.5);
}

/* ---------- Responsive ---------- */
@media screen and (max-width:1024px){
  .nav-links{display:none;}
  .nav-search{display:none;}
  .nav-toggle{display:inline-flex;}
  .nav-right .btn{display:none;}
  .section{padding:64px 0;}
  .section-sm{padding:48px 0;}
  .compare-copy{padding:34px 28px;}
  .compare-figure img{min-height:240px;}
  .float-cta{
    right:0;left:0;bottom:0;
    border-radius:0;
    padding:8px 16px;
    justify-content:space-between;
    border-left:0;border-right:0;border-bottom:0;
  }
  .float-cta .float-text{max-width:none;}
  body{padding-bottom:64px;}
}
@media screen and (max-width:640px){
  .container{padding-left:18px;padding-right:18px;}
  .section{padding:48px 0;}
  .section-sm{padding:40px 0;}
  .page-hero{padding:40px 0 34px;}
  .page-hero .lead{font-size:16px;}
  .entry-card{padding:16px 16px 18px;}
  .faq-q{padding:18px 18px;font-size:15px;}
  .faq-a-inner{padding:0 18px 20px 21px;}
  .cta-band{padding:56px 0;}
  .cta-actions .btn{width:100%;}
  .compare-copy{padding:26px 20px;}
  .site-footer{padding:48px 0 24px;}
  .footer-bottom{flex-direction:column;}
}
@media screen and (min-width:1440px){
  .container{max-width:1240px;}
}

/* roulang page: article */
:root{
  --c-primary:#5B3FD6;
  --c-primary-2:#3E2AA8;
  --c-accent:#C6F24E;
  --c-accent-2:#16C0A8;
  --c-ink:#14122B;
  --c-bg:#F5F4FA;
  --c-surface:#FFFFFF;
  --c-line:#E4E2F0;
  --c-text:#1B1A2E;
  --c-muted:#5C5A78;
  --font:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC","Noto Sans SC",system-ui,sans-serif;
  --r-card:16px;
  --r-btn:10px;
  --r-img:12px;
  --shadow-1:0 2px 8px rgba(27,26,46,.06);
  --shadow-2:0 12px 28px rgba(91,63,214,.14);
  --shadow-3:0 12px 32px rgba(0,0,0,.35);
  --gap:24px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;padding:0;
  font-family:var(--font);
  font-size:16px;line-height:1.9;
  color:var(--c-text);background:var(--c-bg);
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4{margin:0;color:var(--c-text);letter-spacing:-.2px}
h1{font-size:clamp(28px,4.2vw,46px);font-weight:700;line-height:1.28;letter-spacing:-.5px}
h2{font-size:clamp(22px,2.6vw,32px);font-weight:700;line-height:1.35}
h3{font-size:20px;font-weight:600;line-height:1.5}
h4{font-size:16px;font-weight:600;line-height:1.5}
p{margin:0 0 1em}
ul,ol{margin:0;padding:0;list-style:none}
img{max-width:100%;height:auto;display:block}
a{color:var(--c-primary);text-decoration:none;transition:color .22s ease-out,background-color .22s ease-out,border-color .22s ease-out}
a:hover{color:var(--c-primary-2)}
button,input{font-family:inherit;font-size:inherit}
:focus-visible{outline:3px solid var(--c-accent);outline-offset:2px;border-radius:4px}
.container{width:100%;max-width:1240px;margin:0 auto;padding:0 24px}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  font-size:15px;font-weight:600;line-height:1;
  padding:14px 26px;border-radius:var(--r-btn);border:1.5px solid transparent;
  cursor:pointer;transition:background-color .22s ease-out,color .22s ease-out,transform .22s ease-out,box-shadow .22s ease-out,border-color .22s ease-out;
}
.btn-primary{background:var(--c-primary);color:#fff}
.btn-primary:hover{background:var(--c-primary-2);color:#fff;transform:translateY(-2px);box-shadow:0 8px 20px rgba(91,63,214,.28)}
.btn-primary:active{transform:translateY(0)}
.btn-ghost{background:transparent;border-color:var(--c-primary);color:var(--c-primary)}
.btn-ghost:hover{background:rgba(91,63,214,.08);color:var(--c-primary-2);border-color:var(--c-primary-2)}
.btn-accent{background:var(--c-accent);color:var(--c-ink)}
.btn-accent:hover{background:#d6fa6d;color:var(--c-ink);transform:translateY(-2px);box-shadow:0 8px 20px rgba(198,242,78,.3)}
.btn-sm{padding:11px 18px;font-size:14px}
.btn-text{display:inline-flex;align-items:center;background:none;border:0;padding:0;color:var(--c-primary);font-weight:600;font-size:15px;cursor:pointer}
.btn-text::after{content:"→";margin-left:6px;transition:transform .22s ease-out}
.btn-text:hover::after{transform:translateX(3px)}

/* ---------- 标签 ---------- */
.tag{display:inline-flex;align-items:center;gap:6px;font-size:13px;font-weight:600;padding:5px 13px;border-radius:999px;background:rgba(22,192,168,.14);color:#0E8C7C}
.tag-cat{background:rgba(91,63,214,.08);color:var(--c-primary)}
.tag-soft{background:rgba(91,63,214,.06);color:var(--c-muted);font-weight:500}
.dot{color:var(--c-line)}

/* ---------- 顶部导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:80;
  background:rgba(245,244,250,.92);
  border-bottom:1px solid transparent;
  transition:background-color .24s ease-out,box-shadow .24s ease-out,border-color .24s ease-out;
}
.site-header.is-stuck{background:#fff;border-bottom-color:var(--c-line);box-shadow:0 4px 16px rgba(27,26,46,.06)}
.header-inner{display:flex;align-items:center;justify-content:space-between;gap:20px;min-height:64px}
.brand{display:inline-flex;align-items:center;gap:10px;font-size:17px;font-weight:700;color:var(--c-text);letter-spacing:-.2px;white-space:nowrap}
.brand:hover{color:var(--c-primary)}
.brand-mark{width:24px;height:24px;flex:none;border-radius:8px;background:linear-gradient(135deg,var(--c-primary),var(--c-accent-2));position:relative;overflow:hidden}
.brand-mark::after{content:"";position:absolute;right:-5px;bottom:-5px;width:16px;height:16px;border-radius:50%;background:var(--c-accent);opacity:.85}
.nav-links{display:flex;align-items:center;gap:24px}
.nav-link{position:relative;font-size:15px;color:var(--c-muted);padding:6px 0}
.nav-link:hover{color:var(--c-text)}
.nav-link.is-active{color:var(--c-primary);font-weight:600}
.nav-link.is-active::after{content:"";position:absolute;left:0;right:0;bottom:-2px;height:2px;border-radius:2px;background:var(--c-primary)}
.nav-link.is-active::before{content:"";position:absolute;left:-10px;top:50%;width:5px;height:5px;margin-top:-2.5px;border-radius:50%;background:var(--c-accent)}
.header-actions{display:flex;align-items:center;gap:14px}
.search-box{display:flex;align-items:center;gap:8px;background:#fff;border:1px solid var(--c-line);border-radius:999px;padding:8px 16px;min-width:210px;transition:border-color .22s ease-out,box-shadow .22s ease-out}
.search-box:focus-within{border-color:var(--c-primary);box-shadow:0 0 0 3px rgba(91,63,214,.12)}
.search-box input{border:0;outline:0;background:transparent;width:100%;font-size:14px;color:var(--c-text)}
.search-box input::placeholder{color:#9C9AB4}
.search-icon{width:15px;height:15px;flex:none;border:2px solid var(--c-muted);border-radius:50%;position:relative}
.search-icon::after{content:"";position:absolute;right:-5px;bottom:-3px;width:7px;height:2px;background:var(--c-muted);transform:rotate(45deg);border-radius:2px}
.burger{display:none;width:42px;height:38px;border:1px solid var(--c-line);border-radius:10px;background:#fff;cursor:pointer;align-items:center;justify-content:center;flex-direction:column;gap:4px}
.burger span{display:block;width:18px;height:2px;border-radius:2px;background:var(--c-text)}
.drawer{position:fixed;inset:56px 0 auto 0;z-index:79;background:#fff;border-bottom:1px solid var(--c-line);box-shadow:0 18px 40px rgba(27,26,46,.12);padding:18px 24px 22px;display:none}
.drawer.is-open{display:block}
.drawer a{display:block;padding:12px 0;font-size:16px;color:var(--c-text);border-bottom:1px solid var(--c-line)}
.drawer a:last-child{border-bottom:0}
.drawer a.is-active{color:var(--c-primary);font-weight:600}
.drawer .btn{width:100%;margin-top:14px;color:#fff}

/* ---------- 文章头部 ---------- */
.article-hero{background:var(--c-surface);border-bottom:1px solid var(--c-line);padding:0 0 36px}
.breadcrumb{display:flex;align-items:center;flex-wrap:wrap;gap:8px;font-size:13px;color:var(--c-muted);padding:20px 0 0}
.breadcrumb a{color:var(--c-muted)}
.breadcrumb a:hover{color:var(--c-primary)}
.breadcrumb .sep{color:#C3C1D6}
.breadcrumb .current{color:var(--c-muted);max-width:340px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.article-head{padding-top:26px;max-width:900px}
.article-head h1{margin:16px 0 18px}
.meta-row{display:flex;flex-wrap:wrap;align-items:center;gap:12px;font-size:13px;color:var(--c-muted)}
.meta-row .meta-strong{color:var(--c-text);font-weight:600}
.meta-avatar{width:26px;height:26px;border-radius:50%;background:linear-gradient(135deg,var(--c-primary),var(--c-accent-2));flex:none}

/* ---------- 正文布局 ---------- */
.article-main{padding:44px 0 72px}
.article-layout{display:grid;grid-template-columns:minmax(0,1fr);gap:40px;align-items:start}
@media (min-width:1024px){
  .article-layout{grid-template-columns:minmax(0,1fr) 300px;gap:48px}
}
.article-body{background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-card);box-shadow:var(--shadow-1);padding:40px}
.article-content{max-width:800px;font-size:17px;line-height:1.95;color:var(--c-text)}
.article-content>*:first-child{margin-top:0}
.article-content p{margin:0 0 1.15em}
.article-content h2{font-size:clamp(20px,2.2vw,24px);font-weight:700;line-height:1.4;margin:2em 0 .7em;padding-left:14px;position:relative}
.article-content h2::before{content:"";position:absolute;left:0;top:.2em;bottom:.2em;width:4px;border-radius:3px;background:var(--c-primary)}
.article-content h3{font-size:19px;font-weight:600;margin:1.5em 0 .6em}
.article-content h4{font-size:17px;font-weight:600;margin:1.3em 0 .5em}
.article-content a{color:var(--c-primary);border-bottom:1px solid rgba(91,63,214,.35)}
.article-content a:hover{border-bottom-color:var(--c-primary)}
.article-content strong{font-weight:700}
.article-content blockquote{
  margin:1.5em 0;padding:16px 20px;border-left:4px solid var(--c-accent);
  background:rgba(198,242,78,.16);border-radius:0 var(--r-img) var(--r-img) 0;color:var(--c-text);
}
.article-content blockquote p:last-child{margin-bottom:0}
.article-content img{margin:1.6em auto;border-radius:var(--r-img);box-shadow:var(--shadow-1)}
.article-content figure{margin:1.6em 0}
.article-content figcaption{margin-top:10px;text-align:center;font-size:13px;color:var(--c-muted)}
.article-content ul,.article-content ol{margin:0 0 1.15em}
.article-content ul{padding-left:1.25em}
.article-content ol{padding-left:1.4em;list-style:decimal}
.article-content ul>li{position:relative;margin:.45em 0;list-style:none}
.article-content ul>li::before{content:"";position:absolute;left:-1.1em;top:.75em;width:7px;height:7px;border-radius:2px;background:var(--c-primary)}
.article-content ol>li{margin:.45em 0;padding-left:.2em}
.article-content table{
  width:100%;margin:1.5em 0;border-collapse:separate;border-spacing:0;
  border:1px solid var(--c-line);border-radius:var(--r-img);overflow:hidden;font-size:15px;line-height:1.7;
}
.article-content thead th{background:var(--c-ink);color:#fff;font-weight:600;padding:12px 16px;text-align:left;border:0}
.article-content tbody td{padding:12px 16px;border:0;border-top:1px solid var(--c-line);color:var(--c-text)}
.article-content tbody tr:nth-child(even){background:#FAFAFE}
.article-content code{background:rgba(91,63,214,.08);color:var(--c-primary-2);padding:2px 6px;border-radius:6px;font-size:.92em}
.empty-state{text-align:center;padding:36px 12px;max-width:560px;margin:0 auto}
.empty-icon{width:56px;height:56px;margin:0 auto 18px;border-radius:50%;background:rgba(91,63,214,.08);color:var(--c-primary);display:flex;align-items:center;justify-content:center;font-size:24px;font-weight:700}
.empty-state h2{font-size:22px;margin-bottom:10px}
.empty-state p{color:var(--c-muted);font-size:15px;margin-bottom:20px}

/* 标签行 */
.tag-row{display:flex;flex-wrap:wrap;align-items:center;gap:10px;margin-top:34px;padding-top:26px;border-top:1px dashed var(--c-line)}
.tag-row .label{font-size:13px;color:var(--c-muted);margin-right:2px}
.tag-row a.tag:hover{background:rgba(91,63,214,.14);color:var(--c-primary)}

/* 侧栏 */
.sidebar{display:none}
@media (min-width:1024px){.sidebar{display:block}}
.side-card{background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-card);box-shadow:var(--shadow-1);padding:22px;margin-bottom:24px}
.side-card:last-child{margin-bottom:0}
.side-list{position:sticky;top:88px}
.side-title{display:flex;align-items:center;gap:8px;font-size:15px;font-weight:700;margin-bottom:14px}
.side-title::before{content:"";width:8px;height:8px;border-radius:3px;background:var(--c-accent)}
.info-list li{display:flex;justify-content:space-between;gap:12px;font-size:14px;padding:9px 0;border-bottom:1px solid #F1EFF8;color:var(--c-muted)}
.info-list li:last-child{border-bottom:0}
.info-list li span:last-child{color:var(--c-text);font-weight:600;text-align:right;max-width:60%;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.hot-list li{display:flex;gap:10px;align-items:flex-start;padding:9px 0;border-bottom:1px solid #F1EFF8}
.hot-list li:last-child{border-bottom:0}
.hot-list .num{flex:none;width:20px;height:20px;margin-top:3px;border-radius:6px;background:rgba(91,63,214,.08);color:var(--c-primary);font-size:12px;font-weight:700;display:flex;align-items:center;justify-content:center}
.hot-list a{font-size:14px;line-height:1.6;color:var(--c-text);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.hot-list a:hover{color:var(--c-primary)}
.side-note{font-size:13px;line-height:1.7;color:var(--c-muted);margin:0}

/* 上一篇 / 下一篇 */
.post-nav{display:grid;grid-template-columns:1fr;gap:16px;margin-top:36px}
@media (min-width:768px){.post-nav{grid-template-columns:1fr 1fr}}
.post-nav-card{
  display:block;background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-card);
  padding:20px 22px;box-shadow:var(--shadow-1);
  transition:transform .22s ease-out,box-shadow .22s ease-out,border-color .22s ease-out;
}
.post-nav-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-2);border-color:rgba(91,63,214,.3)}
.post-nav-card .pn-label{display:block;font-size:12px;letter-spacing:.08em;color:var(--c-accent-2);font-weight:700;margin-bottom:8px}
.post-nav-card strong{display:block;font-size:16px;font-weight:600;color:var(--c-text);line-height:1.6}
.post-nav-card p{margin:8px 0 0;font-size:13px;color:var(--c-muted)}
.back-row{margin-top:24px;text-align:center}

/* ---------- 通用板块 ---------- */
.section{padding:72px 0}
.section-head{max-width:62ch;margin-bottom:36px}
.section-head .tag{margin-bottom:14px}
.section-head h2{margin-bottom:12px}
.section-head p{color:var(--c-muted);margin:0}
.section-head-row{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;flex-wrap:wrap}

/* 卡片 */
.card{background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-card);box-shadow:var(--shadow-1);transition:transform .22s ease-out,box-shadow .22s ease-out,border-color .22s ease-out}
.card:hover{transform:translateY(-3px);box-shadow:var(--shadow-2);border-color:rgba(91,63,214,.22)}
.news-card{display:flex;flex-direction:column;overflow:hidden;height:100%}
.news-cover{position:relative;display:block;overflow:hidden;border-radius:var(--r-card) var(--r-card) 0 0;background:#EDEBF5;aspect-ratio:16/9}
.news-cover img{width:100%;height:100%;object-fit:cover;transition:transform .24s ease-out}
.news-card:hover .news-cover img{transform:scale(1.03)}
.cover-tag{position:absolute;left:14px;top:14px;z-index:2;background:rgba(22,192,168,.94);color:#fff}
.news-body{padding:20px 22px 22px;display:flex;flex-direction:column;flex:1}
.news-title{font-size:18px;font-weight:600;line-height:1.5;margin-bottom:10px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.news-title a{color:var(--c-text)}
.news-title a:hover{color:var(--c-primary)}
.news-excerpt{font-size:15px;line-height:1.75;color:var(--c-muted);margin:0 0 16px;display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden}
.news-meta{display:flex;align-items:center;gap:8px;margin-top:auto;font-size:13px;color:var(--c-muted)}
.news-meta .arrow-link{margin-left:auto;color:var(--c-primary);font-weight:600}
.news-meta .arrow-link::after{content:"→";margin-left:4px;display:inline-block;transition:transform .22s ease-out}
.news-meta .arrow-link:hover::after{transform:translateX(3px)}

/* FAQ */
.faq-list{display:grid;gap:12px;max-width:900px}
.faq-item{background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-card);box-shadow:var(--shadow-1);overflow:hidden;transition:border-color .22s ease-out,box-shadow .22s ease-out}
.faq-item[open]{border-color:rgba(91,63,214,.28);box-shadow:var(--shadow-2)}
.faq-item summary{
  list-style:none;cursor:pointer;padding:20px 24px;font-size:16px;font-weight:600;color:var(--c-text);
  display:flex;align-items:center;justify-content:space-between;gap:16px;position:relative;
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{content:"";flex:none;width:10px;height:10px;border-right:2px solid var(--c-muted);border-bottom:2px solid var(--c-muted);transform:rotate(45deg);transition:transform .22s ease-out,border-color .22s ease-out}
.faq-item[open] summary::after{transform:rotate(-135deg);border-color:var(--c-primary)}
.faq-item[open] summary{color:var(--c-primary)}
.faq-answer{padding:0 24px 22px;position:relative;font-size:15px;line-height:1.8;color:var(--c-muted)}
.faq-item[open] .faq-answer::before{content:"";position:absolute;left:0;top:2px;bottom:22px;width:3px;border-radius:3px;background:var(--c-primary)}
.faq-answer p:last-child{margin-bottom:0}

/* CTA 带 */
.cta-band{background:var(--c-ink);color:#fff;position:relative;overflow:hidden}
.cta-band::before{
  content:"";position:absolute;inset:0;
  background-image:url("/assets/images/backpic/back-2.png");
  background-size:cover;background-position:center;opacity:.12;
}
.cta-band .container{position:relative;z-index:2}
.cta-inner{max-width:900px;margin:0 auto;text-align:center;padding:76px 0}
.cta-inner h2{color:#fff;margin-bottom:14px}
.cta-inner p{color:rgba(255,255,255,.76);font-size:16px;margin-bottom:28px}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;justify-content:center}

/* 页脚 */
.site-footer{background:var(--c-ink);color:rgba(255,255,255,.72);padding:64px 0 28px;margin-top:0}
.footer-grid{row-gap:32px}
.footer-brand{display:inline-flex;align-items:center;gap:10px;color:#fff;font-size:17px;font-weight:700;margin-bottom:14px}
.footer-brand:hover{color:var(--c-accent)}
.site-footer h4{color:#fff;font-size:15px;margin-bottom:16px}
.site-footer p{font-size:14px;line-height:1.8;color:rgba(255,255,255,.66);margin-bottom:10px}
.footer-links li{margin-bottom:10px}
.footer-links a{color:rgba(255,255,255,.72);font-size:14px}
.footer-links a:hover{color:var(--c-accent)}
.footer-bottom{
  margin-top:36px;padding-top:20px;border-top:1px solid rgba(255,255,255,.1);
  display:flex;justify-content:space-between;gap:12px;flex-wrap:wrap;font-size:13px;color:rgba(255,255,255,.5)
}

/* 浮动 CTA */
.float-cta{
  position:fixed;right:24px;bottom:24px;z-index:90;
  display:flex;align-items:center;gap:14px;
  background:#fff;border:1px solid var(--c-line);border-radius:999px;
  padding:10px 12px 10px 20px;box-shadow:0 12px 32px rgba(27,26,46,.16);
  opacity:0;transform:translateY(14px);pointer-events:none;
  transition:opacity .24s ease-out,transform .24s ease-out;
}
.float-cta.is-on{opacity:1;transform:translateY(0);pointer-events:auto}
.float-note{font-size:12px;color:var(--c-muted);max-width:220px;line-height:1.5}
.float-sub{display:none;font-size:14px;font-weight:600;color:var(--c-primary)}

@media (max-width:1023px){
  .nav-links{display:none}
  .search-box{display:none}
  .burger{display:flex}
  .header-cta{display:none}
  .header-inner{min-height:56px}
  .drawer{inset:56px 0 auto 0}
  .article-body{padding:26px 20px}
  .section{padding:48px 0}
  .cta-inner{padding:52px 0}
  .float-cta{left:12px;right:12px;bottom:12px;border-radius:16px;padding:8px 10px;justify-content:space-between;gap:10px}
  .float-note{display:none}
  .float-sub{display:inline-flex;align-items:center}
  .float-cta .btn{flex:1 1 auto;padding:12px 18px}
  body{padding-bottom:76px}
}
@media (max-width:639px){
  .container{padding:0 18px}
  .article-content{font-size:16px;line-height:1.9}
  .article-hero{padding-bottom:28px}
  .article-main{padding:32px 0 56px}
  .post-nav-card{padding:18px}
  .cta-actions .btn{width:100%}
  .footer-bottom{justify-content:flex-start}
}

/* roulang page: category2 */
:root{
  --c-primary:#5B3FD6;
  --c-primary-2:#3E2AA8;
  --c-accent:#C6F24E;
  --c-accent-2:#16C0A8;
  --c-ink:#14122B;
  --c-bg:#F5F4FA;
  --c-surface:#FFFFFF;
  --c-line:#E4E2F0;
  --c-text:#1B1A2E;
  --c-muted:#5C5A78;
  --font:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC","Noto Sans SC",system-ui,sans-serif;
  --r-card:16px;
  --r-btn:10px;
  --r-img:12px;
  --sh-card:0 2px 8px rgba(27,26,46,.06);
  --sh-hover:0 12px 28px rgba(91,63,214,.14);
  --sh-dark:0 12px 32px rgba(0,0,0,.35);
  --nav-h:64px;
  --maxw:1240px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:var(--font);
  font-size:16px;
  line-height:1.9;
  color:var(--c-text);
  background:var(--c-bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border:0}
a{color:var(--c-primary);text-decoration:none;transition:color .22s ease-out,background-color .22s ease-out,border-color .22s ease-out}
a:hover{color:var(--c-primary-2)}
button,input,select,textarea{font-family:inherit;font-size:inherit}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4,p{margin:0}
:focus-visible{outline:3px solid var(--c-accent);outline-offset:2px;border-radius:4px}
.container{width:100%;max-width:var(--maxw);margin:0 auto;padding:0 24px}
@media (min-width:1440px){.container{max-width:var(--maxw)}}

/* ============ Header / Nav ============ */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(245,244,250,.94);
  border-bottom:1px solid transparent;
  backdrop-filter:saturate(160%) blur(10px);
  transition:background-color .24s ease-out,box-shadow .24s ease-out,border-color .24s ease-out;
}
.site-header.is-stuck{
  background:#fff;
  border-bottom-color:var(--c-line);
  box-shadow:0 4px 16px rgba(27,26,46,.06);
}
.header-inner{display:flex;align-items:center;gap:18px;min-height:var(--nav-h)}
.brand{display:inline-flex;align-items:center;gap:10px;color:var(--c-text);font-weight:700;font-size:17px;letter-spacing:-.2px;white-space:nowrap}
.brand:hover{color:var(--c-primary-2)}
.brand-mark{
  width:24px;height:24px;border-radius:8px;flex:0 0 24px;
  background:linear-gradient(135deg,var(--c-primary) 0%,var(--c-accent-2) 100%);
  position:relative;
}
.brand-mark::after{
  content:"";position:absolute;left:7px;top:7px;width:10px;height:10px;
  border-radius:3px;background:var(--c-accent);
}
.brand-text{display:inline-block}
.nav-links{display:flex;align-items:center;gap:2px;margin-left:8px}
.nav-link{
  position:relative;display:inline-block;
  padding:8px 12px;border-radius:8px;
  color:var(--c-muted);font-size:15px;font-weight:500;
  transition:color .22s ease-out,background-color .22s ease-out;
}
.nav-link:hover{color:var(--c-primary);background:rgba(91,63,214,.06)}
.nav-link.is-active{color:var(--c-primary);font-weight:600}
.nav-link.is-active::after{
  content:"";position:absolute;left:12px;right:12px;bottom:1px;height:2px;
  border-radius:2px;background:var(--c-primary);
}
.header-right{margin-left:auto;display:flex;align-items:center;gap:12px}
.search-box{position:relative;display:block}
.search-box input{
  width:220px;height:40px;padding:0 14px 0 36px;
  border:1px solid var(--c-line);border-radius:var(--r-btn);
  background:#fff;color:var(--c-text);
  transition:border-color .22s ease-out,box-shadow .22s ease-out,width .22s ease-out;
}
.search-box input::placeholder{color:#9C9AB4}
.search-box input:focus{outline:none;border-color:var(--c-primary);box-shadow:0 0 0 3px rgba(91,63,214,.12)}
.search-box::before{
  content:"";position:absolute;left:13px;top:50%;width:13px;height:13px;
  margin-top:-8px;border:2px solid var(--c-muted);border-radius:50%;
}
.search-box::after{
  content:"";position:absolute;left:24px;top:50%;width:6px;height:2px;
  margin-top:4px;background:var(--c-muted);transform:rotate(45deg);border-radius:2px;
}
.nav-toggle{
  display:none;width:42px;height:42px;border:1px solid var(--c-line);border-radius:var(--r-btn);
  background:#fff;padding:0;cursor:pointer;position:relative;
}
.nav-toggle span{
  position:absolute;left:11px;width:18px;height:2px;background:var(--c-text);border-radius:2px;
  transition:transform .24s ease-out,opacity .24s ease-out;
}
.nav-toggle span:nth-child(1){top:14px}
.nav-toggle span:nth-child(2){top:20px}
.nav-toggle span:nth-child(3){top:26px}

/* ============ Buttons ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:14px 26px;border-radius:var(--r-btn);border:1.5px solid transparent;
  font-weight:600;font-size:15px;line-height:1.2;cursor:pointer;
  transition:transform .22s ease-out,box-shadow .22s ease-out,background-color .22s ease-out,color .22s ease-out,border-color .22s ease-out;
}
.btn-primary{background:var(--c-primary);color:#fff;border-color:var(--c-primary)}
.btn-primary:hover{background:var(--c-primary-2);border-color:var(--c-primary-2);color:#fff;transform:translateY(-2px);box-shadow:0 8px 20px rgba(91,63,214,.28)}
.btn-ghost{background:transparent;color:var(--c-primary);border-color:var(--c-primary)}
.btn-ghost:hover{background:rgba(91,63,214,.08);color:var(--c-primary-2);border-color:var(--c-primary-2)}
.btn-dark-on-light{background:var(--c-accent);color:var(--c-ink);border-color:var(--c-accent)}
.btn-dark-on-light:hover{background:#D6FA6A;color:var(--c-ink);transform:translateY(-2px);box-shadow:0 8px 20px rgba(198,242,78,.28)}
.btn-sm{padding:10px 18px;font-size:14px}
.btn-link{display:inline-flex;align-items:center;gap:6px;font-weight:600;color:var(--c-primary);padding:0}
.btn-link .arw{transition:transform .22s ease-out}
.btn-link:hover .arw{transform:translateX(3px)}

/* ============ Badges ============ */
.badge{
  display:inline-flex;align-items:center;gap:6px;
  padding:5px 12px;border-radius:999px;
  font-size:13px;font-weight:600;line-height:1.5;
}
.badge-accent2{background:rgba(22,192,168,.12);color:#0E8676}
.badge-primary{background:rgba(91,63,214,.08);color:var(--c-primary)}
.badge-lime{background:var(--c-accent);color:var(--c-ink)}
.badge-dot{width:6px;height:6px;border-radius:50%;background:currentColor}

/* ============ Page head band ============ */
.page-head{
  background:
    radial-gradient(900px 320px at 12% -30%,rgba(91,63,214,.12),rgba(91,63,214,0) 70%),
    rgba(91,63,214,.06);
  border-bottom:1px solid var(--c-line);
  padding:calc(var(--nav-h) + 26px) 0 40px;
}
.crumbs{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--c-muted);margin-bottom:16px}
.crumbs a{color:var(--c-muted)}
.crumbs a:hover{color:var(--c-primary)}
.crumbs .sep{opacity:.5}
.crumbs .current{color:var(--c-muted)}
.page-head h1{
  font-size:clamp(28px,4.2vw,46px);
  font-weight:700;line-height:1.28;letter-spacing:-.5px;
  max-width:22ch;
}
.page-head h1 em{font-style:normal;position:relative;white-space:nowrap}
.page-head h1 em::after{
  content:"";position:absolute;left:0;right:0;bottom:2px;height:8px;
  background:rgba(198,242,78,.55);border-radius:4px;z-index:-1;
}
.page-head h1 em{z-index:0}
.page-head .lead{max-width:62ch;color:var(--c-muted);margin-top:16px;font-size:16px}
.page-head .head-meta{display:flex;flex-wrap:wrap;gap:10px;margin-top:22px}

/* ============ Sections ============ */
.section{padding:88px 0}
.section--tight{padding:64px 0}
.section--alt{background:#fff;border-top:1px solid var(--c-line);border-bottom:1px solid var(--c-line)}
.section-head{max-width:760px;margin-bottom:40px}
.section-head h2{font-size:clamp(22px,2.6vw,32px);font-weight:700;line-height:1.35;letter-spacing:-.3px;margin-top:14px}
.section-head p{max-width:62ch;color:var(--c-muted);margin-top:12px}
.section-head--row{display:flex;flex-wrap:wrap;align-items:flex-end;justify-content:space-between;gap:16px;max-width:none}

/* ============ Timeline ============ */
.timeline{position:relative;padding-left:30px;max-width:900px}
.timeline::before{
  content:"";position:absolute;left:7px;top:8px;bottom:8px;width:2px;border-radius:2px;
  background:linear-gradient(180deg,var(--c-primary) 0%,rgba(91,63,214,.14) 100%);
}
.tl-item{position:relative;padding-bottom:26px}
.tl-item:last-child{padding-bottom:0}
.tl-item::before{
  content:"";position:absolute;left:-30px;top:7px;width:16px;height:16px;border-radius:50%;
  background:#fff;border:3px solid var(--c-primary);box-sizing:border-box;
}
.tl-item h3{font-size:18px;font-weight:600;line-height:1.5;display:flex;flex-wrap:wrap;align-items:center;gap:8px}
.tl-item .tl-step{
  display:inline-flex;align-items:center;justify-content:center;
  min-width:30px;height:22px;padding:0 8px;border-radius:999px;
  background:rgba(91,63,214,.08);color:var(--c-primary);font-size:12px;font-weight:700;
}
.tl-item p{color:var(--c-muted);font-size:15px;margin-top:6px;max-width:62ch}

/* ============ Prep cards ============ */
.prep-card{
  background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-card);
  padding:24px;height:100%;box-shadow:var(--sh-card);
  transition:transform .22s ease-out,box-shadow .22s ease-out,border-color .22s ease-out;
}
.prep-card:hover{transform:translateY(-3px);box-shadow:var(--sh-hover);border-color:rgba(91,63,214,.28)}
.prep-card .idx{font-size:13px;font-weight:700;color:var(--c-accent-2);letter-spacing:.5px}
.prep-card h3{font-size:18px;font-weight:600;line-height:1.5;margin-top:10px}
.prep-card p{font-size:15px;line-height:1.75;color:var(--c-muted);margin-top:10px}

/* ============ Entries (alternating) ============ */
.entries{display:block}
.entry{padding:40px 0;border-bottom:1px solid var(--c-line)}
.entry:first-child{padding-top:0}
.entry:last-child{border-bottom:0;padding-bottom:0}
.entry + .entry{margin-top:8px}
.entry-media{position:relative}
.entry-media img{
  width:100%;aspect-ratio:16/10;object-fit:cover;
  border-radius:var(--r-img);border:1px solid var(--c-line);box-shadow:var(--sh-card);
  transition:transform .24s ease-out,box-shadow .24s ease-out;
}
.entry-media img:hover{transform:scale(1.01);box-shadow:var(--sh-hover)}
.entry-media .media-tag{position:absolute;left:14px;top:14px}
.entry-body{padding-top:4px}
.entry-body h3{font-size:20px;font-weight:600;line-height:1.5;margin-top:12px}
.entry-body p{color:var(--c-muted);font-size:15px;line-height:1.8;margin-top:12px;max-width:62ch}
.entry-body ul{margin-top:14px}
.entry-body ul li{
  position:relative;padding-left:18px;font-size:15px;color:var(--c-text);margin-bottom:6px;
}
.entry-body ul li::before{
  content:"";position:absolute;left:0;top:12px;width:7px;height:7px;border-radius:2px;
  background:var(--c-primary);
}
.entry-body .btn-link{margin-top:16px;font-size:15px;background:none;border:0;cursor:pointer}
@media (min-width:1024px){
  .entry .grid-x{align-items:center}
  .entry--flip .entry-media{order:2}
  .entry--flip .entry-body{order:1}
  .entry-media{padding-right:6px}
  .entry-body{padding-left:6px;padding-right:6px}
}

/* ============ Dark stat band ============ */
.stat-band{
  position:relative;overflow:hidden;border-radius:20px;color:#fff;
  padding:48px 40px;box-shadow:var(--sh-dark);
  background-image:linear-gradient(rgba(20,18,43,.94),rgba(20,18,43,.94)),url("/assets/images/backpic/back-3.png");
  background-size:cover;background-position:center;
}
.stat-band::after{
  content:"";position:absolute;inset:0;pointer-events:none;opacity:.06;
  background-image:repeating-linear-gradient(135deg,#fff 0 1px,transparent 1px 10px);
}
.stat-band h2{position:relative;font-size:clamp(22px,2.6vw,32px);font-weight:700;line-height:1.35;color:#fff;max-width:24ch}
.stat-band .stat-desc{position:relative;color:rgba(255,255,255,.78);font-size:15px;max-width:62ch;margin-top:14px}
.stat-grid{position:relative;margin-top:32px}
.stat-item{border-top:1px solid rgba(255,255,255,.14);padding-top:18px}
.stat-item .num{font-size:32px;font-weight:700;line-height:1.2;color:var(--c-accent)}
.stat-item .num small{font-size:14px;font-weight:600;color:rgba(255,255,255,.7);margin-left:4px}
.stat-item .lbl{font-size:13px;color:rgba(255,255,255,.72);margin-top:6px;line-height:1.6}

/* ============ FAQ ============ */
.faq-wrap{max-width:900px}
.faq-accordion{margin:0;background:transparent;border:0}
.faq-accordion .accordion-item{
  background:#fff;border:1px solid var(--c-line);border-radius:var(--r-card);
  margin-bottom:14px;overflow:hidden;box-shadow:var(--sh-card);
  transition:box-shadow .22s ease-out,border-color .22s ease-out;
}
.faq-accordion .accordion-item:hover{box-shadow:var(--sh-hover);border-color:rgba(91,63,214,.24)}
.faq-accordion .accordion-title{
  position:relative;border:0;background:transparent;
  padding:20px 56px 20px 24px;font-size:16px;font-weight:600;color:var(--c-text);line-height:1.6;
}
.faq-accordion .accordion-title:hover{background:rgba(91,63,214,.04);color:var(--c-primary)}
.faq-accordion .accordion-title::before{
  content:"";position:absolute;right:24px;top:50%;width:12px;height:2px;background:var(--c-primary);
  margin-top:-1px;border-radius:2px;border:0;
}
.faq-accordion .accordion-title::after{
  content:"";position:absolute;right:29px;top:50%;width:2px;height:12px;background:var(--c-primary);
  margin-top:-6px;border-radius:2px;transition:transform .24s ease-out,opacity .24s ease-out;
}
.faq-accordion .accordion-item.is-active .accordion-title::after{transform:scaleY(0);opacity:0}
.faq-accordion .accordion-item.is-active{border-color:rgba(91,63,214,.35)}
.faq-accordion .accordion-item.is-active .accordion-title{color:var(--c-primary)}
.faq-accordion .accordion-content{
  border:0;padding:0 24px 22px 24px;color:var(--c-muted);font-size:15px;line-height:1.8;
  position:relative;
}
.faq-accordion .accordion-item.is-active .accordion-content::before{
  content:"";position:absolute;left:8px;top:4px;bottom:22px;width:3px;border-radius:3px;background:var(--c-primary);
}

/* ============ CTA band ============ */
.cta-band{
  position:relative;overflow:hidden;color:#fff;
  background-image:linear-gradient(rgba(20,18,43,.9),rgba(20,18,43,.9)),url("/assets/images/backpic/back-2.png");
  background-size:cover;background-position:center;
}
.cta-inner{max-width:900px;margin:0 auto;text-align:center;position:relative}
.cta-inner h2{font-size:clamp(22px,2.6vw,32px);font-weight:700;line-height:1.35;color:#fff}
.cta-inner p{color:rgba(255,255,255,.78);margin-top:14px;font-size:16px}
.cta-actions{display:flex;flex-wrap:wrap;justify-content:center;gap:14px;margin-top:28px}

/* ============ Float CTA ============ */
.float-cta{
  position:fixed;right:24px;bottom:24px;z-index:70;
  display:flex;align-items:center;gap:14px;
  background:#fff;border:1px solid var(--c-line);border-radius:999px;
  padding:10px 12px 10px 22px;box-shadow:0 12px 28px rgba(27,26,46,.16);
  opacity:0;transform:translateY(12px);pointer-events:none;
  transition:opacity .24s ease-out,transform .24s ease-out;
}
.float-cta.is-visible{opacity:1;transform:translateY(0);pointer-events:auto}
.float-cta .fc-txt{font-size:12px;color:var(--c-muted);line-height:1.4;max-width:150px}

/* ============ Footer ============ */
.site-footer{background:var(--c-ink);color:#CFCDE2;padding:64px 0 0;margin-top:0}
.footer-grid{padding-bottom:36px}
.site-footer h4{font-size:15px;font-weight:600;color:#fff;margin-bottom:14px}
.footer-brand{display:inline-flex;align-items:center;gap:10px;color:#fff;font-weight:700;font-size:17px;margin-bottom:14px}
.footer-brand:hover{color:var(--c-accent)}
.site-footer p{font-size:14px;line-height:1.85;color:#9C9AB8;margin-bottom:10px;max-width:42ch}
.footer-links li{margin-bottom:10px}
.footer-links a{color:#CFCDE2;font-size:14px}
.footer-links a:hover{color:var(--c-accent)}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.1);
  padding:20px 0;display:flex;flex-wrap:wrap;gap:10px;justify-content:space-between;
  font-size:13px;color:#8A88A6;
}
.footer-bottom span:last-child{color:#6F6D8C}

/* ============ Drawer ============ */
.nav-drawer{
  position:fixed;inset:0;z-index:90;background:#fff;
  display:flex;flex-direction:column;
  padding:24px;
  opacity:0;visibility:hidden;transform:translateY(-12px);
  transition:opacity .24s ease-out,transform .24s ease-out,visibility .24s;
}
.nav-drawer.is-open{opacity:1;visibility:visible;transform:translateY(0)}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:24px}
.drawer-close{
  width:40px;height:40px;border-radius:var(--r-btn);border:1px solid var(--c-line);background:#fff;
  cursor:pointer;font-size:20px;line-height:1;color:var(--c-text);
}
.drawer-nav{display:flex;flex-direction:column;gap:6px}
.drawer-nav a{
  padding:16px 14px;border-radius:var(--r-btn);font-size:17px;font-weight:600;
  color:var(--c-text);border:1px solid transparent;
}
.drawer-nav a:hover{background:rgba(91,63,214,.06);color:var(--c-primary)}
.drawer-nav a.is-active{color:var(--c-primary);border-color:rgba(91,63,214,.24);background:rgba(91,63,214,.06)}
.drawer-foot{margin-top:auto;display:flex;flex-direction:column;gap:12px}
.drawer-foot .btn{width:100%}

/* ============ Responsive ============ */
@media (max-width:1024px){
  .nav-links{display:none}
  .search-box{display:none}
  .nav-toggle{display:block}
  .header-right .btn-sm{display:none}
  .section{padding:64px 0}
  .section--tight{padding:56px 0}
  .page-head{padding:calc(var(--nav-h) + 18px) 0 32px}
  .stat-band{padding:36px 24px}
}
@media (max-width:640px){
  body{padding-bottom:64px}
  .container{padding:0 18px}
  .header-inner{min-height:56px}
  .brand{font-size:16px}
  .brand-text{max-width:170px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
  .section{padding:48px 0}
  .section--tight{padding:44px 0}
  .section-head{margin-bottom:28px}
  .entry{padding:28px 0}
  .entry-media{margin-bottom:18px}
  .stat-item{padding-top:14px;margin-bottom:8px}
  .cta-actions .btn{width:100%}
  .float-cta{
    left:12px;right:12px;bottom:10px;border-radius:14px;
    padding:10px 12px;justify-content:space-between;
  }
  .float-cta .fc-txt{display:none}
  .float-cta .btn{width:70%}
  .float-cta .fc-link{font-size:13px;font-weight:600;color:var(--c-primary);white-space:nowrap}
  .footer-bottom{flex-direction:column;align-items:flex-start}
}