/* roulang page: index */
:root{
  --c-primary:#4B2EA3;
  --c-primary-d:#3A2280;
  --c-primary-l:#EDE8FB;
  --c-accent:#C8F135;
  --c-warm:#FF6A3D;
  --c-bg:#F6F3EC;
  --c-surface:#FFFFFF;
  --c-line:#E3DDD0;
  --c-ink:#241E3A;
  --c-text:#3C3555;
  --c-text-2:#6B6480;
  --r-card:14px;
  --r-btn:10px;
  --r-img:12px;
  --shadow-1:0 1px 0 var(--c-line),0 10px 24px -20px rgba(36,30,58,.55);
  --shadow-2:0 1px 0 var(--c-line),0 18px 32px -20px rgba(36,30,58,.6);
  --font-cn:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC",sans-serif;
  --font-num:"Inter","HarmonyOS Sans",system-ui,sans-serif;
  --sec-pad:56px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;padding:0;
  background:var(--c-bg);
  color:var(--c-text);
  font-family:var(--font-cn);
  font-size:17px;line-height:1.85;font-weight:400;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
  overflow-x:hidden;
}
img{max-width:100%;display:block;border-radius:var(--r-img);object-fit:cover;border:0;}
a{color:var(--c-primary);text-decoration:none;transition:color .18s ease;}
a:hover{color:var(--c-primary-d);}
button{font-family:inherit;}
ul,ol{list-style:none;margin:0;padding:0;}
h1,h2,h3,h4,h5{margin:0;color:var(--c-ink);font-family:var(--font-cn);line-height:1.35;}
p{margin:0 0 1.05em;}
p:last-child{margin-bottom:0;}
:focus-visible{outline:2px solid var(--c-accent);outline-offset:2px;border-radius:4px;}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 20px;}
.section{padding:var(--sec-pad) 0;}
@media(min-width:768px){:root{--sec-pad:72px;}}
@media(min-width:1024px){:root{--sec-pad:96px;} .container{padding:0 32px;}}
.sec-head{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;flex-wrap:wrap;margin-bottom:32px;}
.sec-head__text{max-width:720px;}
.sec-title{position:relative;padding-left:20px;font-size:clamp(24px,2.6vw,34px);font-weight:700;line-height:1.35;}
.sec-title::before{content:"";position:absolute;left:0;top:.16em;width:12px;height:.9em;background:var(--c-accent);border-radius:3px;}
.sec-sub{margin:12px 0 0;color:var(--c-text-2);font-size:16px;line-height:1.8;}
.link-more{display:inline-flex;align-items:center;gap:8px;font-size:16px;font-weight:600;color:var(--c-primary);white-space:nowrap;}
.link-more i{transition:transform .18s ease;}
.link-more:hover i{transform:translateX(4px);}

/* ---------- 按钮 ---------- */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:12px 22px;border-radius:var(--r-btn);font-size:16px;font-weight:600;line-height:1.4;border:1px solid transparent;cursor:pointer;transition:transform .18s ease,box-shadow .18s ease,background .18s ease,color .18s ease,border-color .18s ease;text-align:center;}
.btn--primary{background:var(--c-primary);color:#fff;border-color:var(--c-primary);}
.btn--primary:hover,.btn--primary:focus{background:var(--c-primary-d);border-color:var(--c-primary-d);color:#fff;transform:translateY(-2px);box-shadow:var(--shadow-2);}
.btn--accent{background:var(--c-accent);color:var(--c-ink);border-color:var(--c-accent);}
.btn--accent:hover,.btn--accent:focus{background:#d7ff52;color:var(--c-ink);transform:translateY(-2px);box-shadow:var(--shadow-2);}
.btn--outline{background:var(--c-surface);color:var(--c-ink);border-color:var(--c-line);}
.btn--outline:hover,.btn--outline:focus{background:var(--c-primary-l);border-color:var(--c-primary);color:var(--c-primary);transform:translateY(-2px);}
.btn--ghost{background:transparent;color:#fff;border-color:rgba(255,255,255,.45);}
.btn--ghost:hover,.btn--ghost:focus{background:rgba(255,255,255,.12);color:#fff;border-color:var(--c-accent);}
.btn:active{transform:translateY(0);box-shadow:none;}
.badge{display:inline-flex;align-items:center;gap:6px;padding:4px 12px;border-radius:999px;background:var(--c-primary-l);color:var(--c-primary);font-size:13px;font-weight:600;line-height:1.6;}
.badge--warm{background:#FFEDE6;color:#C4441C;}

/* ---------- 导航 ---------- */
.site-header{position:sticky;top:0;z-index:60;background:var(--c-primary);border-bottom:2px solid var(--c-accent);}
.nav-wrap{display:flex;align-items:center;gap:20px;height:68px;}
.brand{display:inline-flex;align-items:center;gap:10px;text-decoration:none;flex:0 0 auto;}
.brand__mark{width:36px;height:36px;border-radius:10px;background:var(--c-accent);color:var(--c-ink);display:grid;place-items:center;font-size:17px;}
.brand__text{color:#fff;font-weight:800;font-size:20px;letter-spacing:.5px;white-space:nowrap;}
.main-nav{margin-left:8px;min-width:0;}
.main-nav .menu{display:flex;align-items:center;gap:2px;background:transparent;margin:0;padding:0;flex-wrap:nowrap;}
.main-nav .menu>li{position:relative;}
.main-nav .menu>li>a{display:block;padding:10px 14px;color:rgba(255,255,255,.86);font-size:16px;font-weight:500;border-radius:8px;position:relative;white-space:nowrap;transition:color .18s ease,background .18s ease;}
.main-nav .menu>li>a::after{content:"";position:absolute;left:14px;right:14px;bottom:3px;height:3px;border-radius:2px;background:var(--c-accent);transform:scaleX(0);transform-origin:left center;transition:transform .18s ease;}
.main-nav .menu>li>a:hover,.main-nav .menu>li>a:focus-visible{color:#fff;background:var(--c-primary-d);}
.main-nav .menu>li>a:hover::after,.main-nav .menu>li>a:focus-visible::after{transform:scaleX(1);}
.main-nav .menu>li>a.is-active{color:#fff;background:rgba(255,255,255,.1);}
.main-nav .menu>li>a.is-active::after{transform:scaleX(1);}
.nav-actions{margin-left:auto;display:flex;align-items:center;gap:12px;}
.icon-btn{width:38px;height:38px;border-radius:10px;background:transparent;border:1px solid rgba(255,255,255,.4);color:#fff;display:grid;place-items:center;cursor:pointer;font-size:15px;transition:background .18s ease,border-color .18s ease,color .18s ease;}
.icon-btn:hover{background:rgba(255,255,255,.14);border-color:var(--c-accent);}
.nav-toggle{display:none;width:40px;height:38px;border-radius:10px;background:transparent;border:1px solid rgba(255,255,255,.4);color:#fff;cursor:pointer;font-size:17px;}
.nav-toggle:hover{border-color:var(--c-accent);}

.mega{position:absolute;top:calc(100% + 10px);left:50%;width:780px;max-width:92vw;transform:translateX(-50%) translateY(10px);background:var(--c-surface);border-top:3px solid var(--c-accent);border-radius:var(--r-card);box-shadow:var(--shadow-2);padding:24px;display:grid;grid-template-columns:1.05fr 1fr;gap:24px;opacity:0;visibility:hidden;transition:opacity .18s ease,transform .18s ease,visibility .18s ease;}
.has-mega:hover .mega,.has-mega:focus-within .mega{opacity:1;visibility:visible;transform:translateX(-50%) translateY(0);}
.mega__col h4{font-size:14px;letter-spacing:1px;color:var(--c-text-2);font-weight:700;margin-bottom:14px;}
.mega__list li+li{margin-top:8px;}
.mega__list a{display:flex;align-items:center;justify-content:space-between;gap:12px;padding:10px 12px;border-radius:10px;font-size:15px;color:var(--c-ink);background:transparent;transition:background .18s ease,color .18s ease;}
.mega__list a:hover{background:var(--c-primary-l);color:var(--c-primary);}
.mega__list span{font-size:13px;color:var(--c-text-2);font-family:var(--font-num);}
.mega__news li+li{margin-top:10px;}
.mega__news a{display:block;font-size:15px;color:var(--c-ink);font-weight:600;line-height:1.6;}
.mega__news a:hover{color:var(--c-primary);}
.mega__news time{display:block;font-size:13px;color:var(--c-warm);font-family:var(--font-num);}
.mega__card{display:block;margin-top:16px;background:var(--c-bg);border:1px solid var(--c-line);border-radius:var(--r-card);overflow:hidden;transition:transform .18s ease,box-shadow .18s ease;}
.mega__card:hover{transform:translateY(-3px);box-shadow:var(--shadow-2);}
.mega__card img{width:100%;height:110px;border-radius:0;}
.mega__card b{display:block;padding:12px 14px;font-size:15px;color:var(--c-ink);font-weight:600;}

/* ---------- 抽屉 ---------- */
.drawer-mask{position:fixed;inset:0;background:rgba(36,30,58,.6);opacity:0;visibility:hidden;transition:opacity .25s ease,visibility .25s ease;z-index:80;}
.drawer-mask.is-open{opacity:1;visibility:visible;}
.drawer{position:fixed;top:0;left:0;bottom:0;width:290px;max-width:86vw;background:var(--c-primary);padding:20px;z-index:90;transform:translateX(-100%);transition:transform .25s ease;overflow-y:auto;}
.drawer.is-open{transform:translateX(0);}
.drawer__head{display:flex;align-items:center;justify-content:space-between;margin-bottom:20px;}
.drawer__head b{color:#fff;font-size:18px;font-weight:800;}
.drawer__close{width:36px;height:36px;border-radius:9px;background:transparent;border:1px solid rgba(255,255,255,.4);color:#fff;cursor:pointer;}
.drawer nav a{display:block;padding:13px 12px;border-radius:10px;color:rgba(255,255,255,.9);font-size:16px;font-weight:500;margin-bottom:4px;transition:background .18s ease,color .18s ease;}
.drawer nav a:hover,.drawer nav a.is-active{background:var(--c-primary-d);color:#fff;}
.drawer .btn{margin-top:18px;width:100%;}

/* ---------- Hero ---------- */
.hero{background:var(--c-bg);padding:48px 0 72px;}
.hero__grid{display:grid;grid-template-columns:1fr;gap:40px;align-items:center;}
.hero__copy{max-width:620px;}
.hero__eyebrow{display:inline-flex;align-items:center;gap:8px;padding:6px 14px;border-radius:999px;background:var(--c-primary-l);color:var(--c-primary);font-size:14px;font-weight:600;margin-bottom:18px;}
.hero__title{font-size:clamp(30px,4.2vw,50px);font-weight:800;line-height:1.25;letter-spacing:-.5px;margin-bottom:18px;}
.hero__sub{font-size:18px;line-height:1.8;color:var(--c-text);margin-bottom:26px;max-width:560px;}
.hero__actions{display:flex;flex-wrap:wrap;gap:12px;margin-bottom:26px;}
.hero__points{display:grid;gap:10px;}
.hero__points li{position:relative;padding-left:26px;font-size:15px;color:var(--c-text-2);line-height:1.75;}
.hero__points li::before{content:"";position:absolute;left:0;top:.62em;width:14px;height:8px;background:var(--c-accent);border-radius:3px;}
.hero__media{position:relative;}
.hero__media img{width:100%;aspect-ratio:4/3;border-radius:var(--r-card);box-shadow:var(--shadow-1);}
.stat-card{position:absolute;right:-6px;bottom:-28px;background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-card);box-shadow:var(--shadow-2);padding:18px 20px;display:flex;flex-direction:column;gap:14px;min-width:200px;}
.stat__num{display:block;font-family:var(--font-num);font-size:28px;font-weight:800;color:var(--c-primary);line-height:1.2;}
.stat__label{display:block;font-size:13px;color:var(--c-text-2);line-height:1.6;}
@media(min-width:1024px){
  .hero{padding:64px 0 96px;}
  .hero__grid{grid-template-columns:minmax(0,1fr) minmax(0,1.05fr);gap:56px;}
}
@media(max-width:639px){
  .stat-card{position:static;margin-top:14px;flex-direction:row;justify-content:space-between;gap:8px;min-width:0;box-shadow:var(--shadow-1);padding:14px;}
  .stat{flex:1;text-align:center;}
  .stat__num{font-size:22px;}
  .hero__actions .btn{width:100%;}
}

/* ---------- 数据带 ---------- */
.stats-band{background:var(--c-ink);border-top:3px solid var(--c-accent);padding:44px 0;}
.stats-band .stat-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:28px 20px;text-align:center;}
.stats-band .num{display:block;font-family:var(--font-num);font-size:clamp(26px,3vw,40px);font-weight:800;color:var(--c-accent);line-height:1.2;}
.stats-band .lbl{font-size:14px;color:rgba(255,255,255,.72);line-height:1.6;}
@media(min-width:860px){.stats-band .stat-grid{grid-template-columns:repeat(4,1fr);}}

/* ---------- 痛点 ---------- */
.pain-grid{display:grid;grid-template-columns:1fr;gap:20px;}
.pain-card{background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-card);box-shadow:var(--shadow-1);padding:26px;transition:transform .2s ease,box-shadow .2s ease;}
.pain-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-2);}
.pain-card i{width:44px;height:44px;border-radius:12px;background:var(--c-primary-l);color:var(--c-primary);display:grid;place-items:center;font-size:18px;margin-bottom:16px;}
.pain-card h3{font-size:20px;font-weight:600;margin-bottom:10px;}
.pain-card p{font-size:15.5px;color:var(--c-text-2);line-height:1.85;}
@media(min-width:768px){
  .pain-grid{grid-template-columns:1.12fr .88fr;gap:24px;}
  .pain-card:nth-child(3){grid-column:1 / -1;display:grid;grid-template-columns:auto 1fr;gap:20px;align-items:start;}
  .pain-card:nth-child(3) i{margin-bottom:0;}
}

/* ---------- 方案 ---------- */
.solution-row{display:grid;grid-template-columns:1fr;gap:26px;align-items:center;padding:28px 0;border-bottom:1px solid var(--c-line);}
.solution-row:last-child{border-bottom:0;}
.solution-row__media img{width:100%;aspect-ratio:16/11;border-radius:var(--r-card);box-shadow:var(--shadow-1);}
.solution-row__body h3{font-size:clamp(20px,2vw,24px);font-weight:600;margin-bottom:14px;}
.solution-row__body p{color:var(--c-text-2);font-size:16px;}
.check-list{margin-top:16px;display:grid;gap:10px;}
.check-list li{position:relative;padding-left:26px;font-size:15.5px;line-height:1.8;}
.check-list li::before{content:"\2713";position:absolute;left:0;top:0;width:18px;height:18px;border-radius:6px;background:var(--c-accent);color:var(--c-ink);font-size:12px;font-weight:700;display:grid;place-items:center;line-height:1;margin-top:.42em;}
@media(min-width:900px){
  .solution-row{grid-template-columns:1fr 1fr;gap:48px;padding:36px 0;}
  .solution-row--rev .solution-row__media{order:2;}
}

/* ---------- 成果 ---------- */
.result-grid{display:grid;grid-template-columns:1fr;gap:24px;}
.result-card{background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-card);box-shadow:var(--shadow-1);overflow:hidden;transition:transform .2s ease,box-shadow .2s ease;}
.result-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-2);}
.result-card img{width:100%;aspect-ratio:16/10;border-radius:0;}
.result-card__body{padding:24px;}
.result-card__body h3{font-size:21px;font-weight:600;margin-bottom:10px;}
.result-card__body p{font-size:15.5px;color:var(--c-text-2);}
.result-figure{font-family:var(--font-num);font-size:30px;font-weight:800;color:var(--c-warm);line-height:1.3;display:block;margin-bottom:6px;}
@media(min-width:900px){
  .result-card{display:grid;grid-template-columns:1fr 1fr;align-items:stretch;}
  .result-card img{height:100%;aspect-ratio:auto;min-height:260px;}
  .result-card__body{display:flex;flex-direction:column;justify-content:center;}
}

/* ---------- 证言 ---------- */
.testimonial-band{background:var(--c-primary-l);}
.testimonial-grid{display:grid;grid-template-columns:1fr;gap:22px;}
.testimonial-card{background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-card);box-shadow:var(--shadow-1);padding:26px;transition:transform .2s ease,box-shadow .2s ease;}
.testimonial-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-2);}
.testimonial-card blockquote{margin:0 0 20px;padding:0;border:0;font-size:16px;line-height:1.9;color:var(--c-ink);}
.testimonial-card blockquote::before{content:"\201C";display:block;font-size:34px;line-height:1;color:var(--c-primary);margin-bottom:6px;font-family:var(--font-num);}
.testimonial-who{display:flex;align-items:center;gap:12px;}
.testimonial-who img{width:48px;height:48px;border-radius:var(--r-img);}
.testimonial-who b{display:block;font-size:15px;color:var(--c-ink);}
.testimonial-who span{display:block;font-size:13.5px;color:var(--c-text-2);}
@media(min-width:768px){.testimonial-grid{grid-template-columns:repeat(3,1fr);}}

/* ---------- 资讯 ---------- */
.news-grid{display:grid;grid-template-columns:1fr;gap:24px;}
.card{background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-card);box-shadow:var(--shadow-1);overflow:hidden;display:flex;flex-direction:column;transition:transform .2s ease,box-shadow .2s ease;}
.card:hover{transform:translateY(-3px);box-shadow:var(--shadow-2);}
.card__media{display:block;aspect-ratio:16/9;overflow:hidden;background:var(--c-primary-l);}
.card__media img{width:100%;height:100%;border-radius:0;transition:transform .3s ease;}
.card:hover .card__media img{transform:scale(1.04);}
.card__body{padding:20px;display:flex;flex-direction:column;gap:12px;flex:1;}
.card__title{font-size:18px;font-weight:600;line-height:1.55;}
.card__title a{color:var(--c-ink);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.card__title a:hover{color:var(--c-primary);}
.card__desc{font-size:15px;color:var(--c-text-2);line-height:1.75;display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden;margin:0;}
.card__meta{margin-top:auto;display:flex;align-items:center;justify-content:space-between;gap:12px;padding-top:6px;}
.card__meta time{font-family:var(--font-num);font-size:13.5px;color:var(--c-warm);}
.card__more{font-size:14.5px;font-weight:600;color:var(--c-primary);display:inline-flex;align-items:center;gap:6px;}
.card__more i{transition:transform .18s ease;}
.card__more:hover i{transform:translateX(4px);}
.empty-state{grid-column:1 / -1;background:var(--c-surface);border:1px dashed var(--c-line);border-radius:var(--r-card);padding:56px 24px;text-align:center;color:var(--c-text-2);}
.empty-state i{font-size:34px;color:var(--c-primary);margin-bottom:14px;display:block;}
.empty-state p{font-size:16px;margin:0;}
@media(min-width:640px){.news-grid{grid-template-columns:repeat(2,1fr);}}
@media(min-width:1024px){.news-grid{grid-template-columns:repeat(3,1fr);gap:28px;}}

/* ---------- FAQ ---------- */
.faq-wrap{background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-card);box-shadow:var(--shadow-1);padding:8px 24px;}
.faq-item{border-bottom:1px solid var(--c-line);position:relative;transition:background .2s ease;}
.faq-item:last-child{border-bottom:0;}
.faq-item.is-open{box-shadow:inset 3px 0 0 var(--c-accent);}
.faq-q{width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;padding:18px 4px;background:none;border:0;text-align:left;font-size:18px;font-weight:600;line-height:1.9;color:var(--c-ink);cursor:pointer;transition:color .18s ease;}
.faq-q:hover{color:var(--c-primary);}
.faq-icon{position:relative;width:16px;height:16px;flex:0 0 16px;}
.faq-icon::before,.faq-icon::after{content:"";position:absolute;background:var(--c-primary);border-radius:2px;transition:transform .2s ease;}
.faq-icon::before{left:0;right:0;top:7px;height:2px;}
.faq-icon::after{top:0;bottom:0;left:7px;width:2px;}
.faq-item.is-open .faq-icon::after{transform:scaleY(0);}
.faq-a{max-height:0;overflow:hidden;transition:max-height .3s ease;}
.faq-item.is-open .faq-a{max-height:420px;background:var(--c-primary-l);border-radius:0 0 10px 10px;}
.faq-a p{padding:16px 20px 20px;font-size:16px;line-height:1.9;color:var(--c-text);margin:0;}

/* ---------- 收尾 CTA ---------- */
.final-cta{background:var(--c-ink);border-top:3px solid var(--c-accent);padding:64px 0;}
.final-cta__inner{max-width:760px;margin:0 auto;text-align:center;}
.final-cta h2{color:#fff;font-size:clamp(24px,2.6vw,34px);font-weight:700;margin-bottom:14px;}
.final-cta p{color:rgba(255,255,255,.76);font-size:16.5px;line-height:1.85;margin-bottom:26px;}
.final-cta .btn-row{display:flex;flex-wrap:wrap;gap:12px;justify-content:center;}
@media(max-width:639px){.final-cta .btn-row .btn{width:100%;}}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--c-ink);color:rgba(255,255,255,.78);padding:56px 0 0;border-top:3px solid var(--c-accent);}
.footer-grid{display:grid;grid-template-columns:1fr;gap:34px;padding-bottom:40px;}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:14px;}
.footer-brand span.mark{width:34px;height:34px;border-radius:10px;background:var(--c-accent);color:var(--c-ink);display:grid;place-items:center;font-size:16px;}
.footer-brand b{color:#fff;font-size:19px;font-weight:800;}
.site-footer p{font-size:15px;line-height:1.85;color:rgba(255,255,255,.72);}
.site-footer h4{color:#fff;font-size:16px;font-weight:700;margin-bottom:16px;}
.footer-list li+li{margin-top:10px;}
.footer-list a{color:rgba(255,255,255,.78);font-size:15px;transition:color .18s ease;}
.footer-list a:hover{color:#fff;text-decoration:underline;text-decoration-color:var(--c-accent);text-underline-offset:4px;}
.footer-contact li{font-size:15px;color:rgba(255,255,255,.78);line-height:1.9;}
.footer-bottom{border-top:1px solid rgba(255,255,255,.14);padding:20px 0;display:flex;flex-wrap:wrap;gap:10px;justify-content:space-between;align-items:center;}
.footer-bottom p{font-size:13.5px;color:rgba(255,255,255,.6);margin:0;font-family:var(--font-num);}
@media(min-width:768px){.footer-grid{grid-template-columns:1.5fr 1fr 1fr 1fr;gap:28px;}}

/* ---------- 响应式导航 ---------- */
@media(max-width:1023px){
  .main-nav{display:none;}
  .nav-toggle{display:grid;place-items:center;}
  .nav-actions .btn{display:none;}
}
@media(max-width:520px){
  .brand__text{font-size:17px;}
  .nav-wrap{height:56px;gap:12px;}
  .site-header{padding:0;}
  body{font-size:16.5px;}
}

/* roulang page: article */
:root{
  --c-primary:#4B2EA3;
  --c-primary-d:#3A2280;
  --c-primary-l:#EDE8FB;
  --c-accent:#C8F135;
  --c-warm:#FF6A3D;
  --c-bg:#F6F3EC;
  --c-surface:#FFFFFF;
  --c-line:#E3DDD0;
  --c-line-dark:#3A2C7A;
  --c-ink:#241E3A;
  --c-text:#3C3555;
  --c-text-2:#6B6480;
  --r-card:14px;
  --r-btn:10px;
  --r-img:12px;
  --shadow-1:0 1px 0 var(--c-line),0 10px 24px -20px rgba(36,30,58,.55);
  --shadow-2:0 1px 0 var(--c-line),0 18px 32px -20px rgba(36,30,58,.6);
  --font-cn:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC",sans-serif;
  --font-num:"Inter","HarmonyOS Sans",system-ui,sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;background:var(--c-bg);color:var(--c-text);
  font-family:var(--font-cn);font-size:17px;line-height:1.85;
  letter-spacing:.01em;
}
img{max-width:100%;display:block}
a{color:var(--c-primary);text-decoration:none;transition:color .18s ease,background-color .18s ease,border-color .18s ease}
a:hover{color:var(--c-primary-d)}
button{font-family:inherit}
h1,h2,h3,h4{color:var(--c-ink);margin:0;font-weight:700}
p{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
:focus-visible{outline:2px solid var(--c-accent);outline-offset:2px;border-radius:4px}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 20px}
@media (min-width:1024px){.container{padding:0 32px}}

/* ---------- header / nav ---------- */
.site-header{
  position:sticky;top:0;z-index:120;
  background:var(--c-primary);
  border-bottom:2px solid var(--c-accent);
}
.nav-wrap{display:flex;align-items:center;gap:18px;min-height:68px;position:relative}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto}
.brand__mark{
  width:36px;height:36px;border-radius:10px;background:var(--c-accent);
  color:var(--c-ink);display:flex;align-items:center;justify-content:center;font-size:17px;
}
.brand__text{color:#fff;font-size:20px;font-weight:800;letter-spacing:.02em}
.brand:hover .brand__text{color:var(--c-accent)}
.main-nav{flex:1 1 auto;min-width:0}
.main-nav .menu{
  display:flex;align-items:center;gap:4px;background:transparent;
  margin:0;padding:0;list-style:none;flex-wrap:nowrap;
}
.main-nav .menu > li{position:relative}
.main-nav .menu > li > a{
  display:inline-block;padding:10px 14px;color:#fff;font-size:16px;font-weight:500;
  border-radius:8px;position:relative;
}
.main-nav .menu > li > a::after{
  content:"";position:absolute;left:14px;right:14px;bottom:6px;height:3px;border-radius:2px;
  background:var(--c-accent);transform:scaleX(0);transform-origin:left;transition:transform .18s ease;
}
.main-nav .menu > li > a:hover,.main-nav .menu > li > a:focus-visible{color:#fff;background:var(--c-primary-d)}
.main-nav .menu > li > a:hover::after,.main-nav .menu > li > a:focus-visible::after{transform:scaleX(1)}
.main-nav .menu > li > a.is-active{color:var(--c-accent)}
.main-nav .menu > li > a.is-active::after{transform:scaleX(1)}
.nav-actions{display:flex;align-items:center;gap:10px;flex:0 0 auto;margin-left:auto}
.icon-btn{
  width:40px;height:40px;border-radius:10px;border:1px solid rgba(255,255,255,.45);
  background:transparent;color:#fff;cursor:pointer;display:flex;align-items:center;justify-content:center;
  transition:background .18s ease,border-color .18s ease,color .18s ease;
}
.icon-btn:hover{background:var(--c-primary-d);border-color:var(--c-accent);color:var(--c-accent)}
.icon-btn:active{transform:translateY(1px)}
.burger{
  display:none;width:42px;height:40px;border-radius:10px;border:1px solid rgba(255,255,255,.45);
  background:transparent;cursor:pointer;flex-direction:column;gap:4px;align-items:center;justify-content:center;
}
.burger span{display:block;width:18px;height:2px;background:#fff;border-radius:2px;transition:transform .2s ease,opacity .2s ease}

.mega{
  position:absolute;right:0;top:calc(100% + 10px);display:none;gap:26px;
  width:min(820px,calc(100vw - 48px));
  background:var(--c-surface);border-radius:var(--r-card);
  border-top:3px solid var(--c-accent);box-shadow:var(--shadow-2);
  padding:26px 28px;
}
.has-mega:hover .mega,.has-mega:focus-within .mega{display:flex}
.mega__col{flex:1 1 0;min-width:0}
.mega__col h4{font-size:13px;letter-spacing:.12em;color:var(--c-text-2);font-weight:600;margin-bottom:14px;text-transform:uppercase}
.mega__list li + li{margin-top:10px}
.mega__list a{
  display:flex;justify-content:space-between;align-items:baseline;gap:10px;
  padding:9px 12px;border-radius:10px;color:var(--c-ink);font-weight:600;font-size:15px;
}
.mega__list a span{font-size:13px;color:var(--c-text-2);font-weight:400}
.mega__list a:hover{background:var(--c-primary-l);color:var(--c-primary)}
.mega__news li{padding:9px 0;border-bottom:1px dashed var(--c-line)}
.mega__news a{display:block;color:var(--c-ink);font-size:15px;font-weight:500;line-height:1.6}
.mega__news a:hover{color:var(--c-primary)}
.mega__news time{font-family:var(--font-num);font-size:12.5px;color:var(--c-warm)}
.mega__card{
  display:flex;gap:12px;align-items:center;margin-top:16px;padding:10px;
  border:1px solid var(--c-line);border-radius:var(--r-card);background:#FCFAF6;
}
.mega__card img{width:64px;height:48px;object-fit:cover;border-radius:8px}
.mega__card b{font-size:14.5px;color:var(--c-ink);line-height:1.55}
.mega__card:hover{border-color:var(--c-primary);background:var(--c-primary-l)}

.mobile-drawer{
  display:none;position:fixed;inset:0 0 0 auto;width:min(320px,86vw);z-index:200;
  background:var(--c-surface);box-shadow:-18px 0 40px -24px rgba(36,30,58,.7);
  padding:22px 20px;overflow-y:auto;
}
.mobile-drawer.is-open{display:block}
.drawer-mask{display:none;position:fixed;inset:0;background:rgba(36,30,58,.55);z-index:190}
.drawer-mask.is-open{display:block}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:18px}
.drawer-head b{font-size:17px;color:var(--c-ink)}
.drawer-close{width:36px;height:36px;border-radius:9px;border:1px solid var(--c-line);background:#fff;color:var(--c-ink);cursor:pointer}
.drawer-list li a{display:block;padding:12px 10px;border-radius:10px;color:var(--c-ink);font-weight:600}
.drawer-list li a:hover{background:var(--c-primary-l);color:var(--c-primary)}
.drawer-list li + li{border-top:1px solid var(--c-line)}

@media (max-width:1000px){
  .main-nav{display:none}
  .burger{display:flex}
  .nav-actions .btn{display:none}
  .icon-btn{display:none}
}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:12px 22px;border-radius:var(--r-btn);font-size:16px;font-weight:600;
  border:1px solid transparent;cursor:pointer;line-height:1.2;
  transition:transform .18s ease,box-shadow .18s ease,background-color .18s ease,color .18s ease,border-color .18s ease;
}
.btn--primary{background:var(--c-primary);color:#fff;box-shadow:var(--shadow-1)}
.btn--primary:hover{background:var(--c-primary-d);color:#fff;transform:translateY(-2px);box-shadow:var(--shadow-2)}
.btn--primary:active{transform:translateY(0)}
.btn--accent{background:var(--c-accent);color:var(--c-ink)}
.btn--accent:hover{background:#DAFF5C;color:var(--c-ink);transform:translateY(-2px)}
.btn--ghost{background:transparent;border-color:var(--c-line);color:var(--c-ink)}
.btn--ghost:hover{border-color:var(--c-primary);color:var(--c-primary);background:var(--c-primary-l)}
.btn--sm{padding:9px 16px;font-size:14.5px}
.btn--block{width:100%}

/* ---------- breadcrumb ---------- */
.crumb-bar{padding:20px 0 0;font-size:14px;color:var(--c-text-2)}
.crumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px}
.crumb li{display:flex;align-items:center;gap:8px}
.crumb li::after{content:"/";color:#B9B2C6}
.crumb li:last-child::after{display:none}
.crumb a{color:var(--c-text-2)}
.crumb a:hover{color:var(--c-primary)}
.crumb .current{color:var(--c-ink);max-width:340px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}

/* ---------- article head ---------- */
.article-head{padding:26px 0 30px}
.badge{
  display:inline-flex;align-items:center;gap:6px;padding:5px 12px;border-radius:999px;
  background:var(--c-primary-l);color:var(--c-primary);font-size:13.5px;font-weight:600;
}
.article-head h1{
  font-size:clamp(26px,3.6vw,42px);line-height:1.3;letter-spacing:-.5px;font-weight:800;
  margin:16px 0 14px;max-width:900px;
}
.meta-row{
  display:flex;flex-wrap:wrap;align-items:center;gap:10px;
  font-size:14px;color:var(--c-text-2);
}
.meta-row .num{font-family:var(--font-num)}
.meta-row .dot{color:#BEB7C9}
.meta-row .warm{color:var(--c-warm);font-family:var(--font-num)}
.article-cover{margin:22px 0 0;border-radius:var(--r-card);overflow:hidden;border:1px solid var(--c-line);box-shadow:var(--shadow-1)}
.article-cover img{width:100%;height:auto;max-height:420px;object-fit:cover;border-radius:0}
.article-cover figcaption{font-size:13.5px;color:var(--c-text-2);text-align:center;padding:10px 14px;background:#FCFAF6}

/* ---------- layout ---------- */
.article-layout{display:flex;gap:40px;align-items:flex-start;padding:34px 0 0}
.article-main{flex:1 1 auto;min-width:0;max-width:800px}
.article-side{flex:0 0 260px;width:260px;position:sticky;top:96px;display:flex;flex-direction:column;gap:16px}
@media (max-width:1023px){
  .article-layout{flex-direction:column;gap:28px}
  .article-main{max-width:100%}
  .article-side{position:static;width:100%;flex:1 1 auto}
}
.card{
  background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-card);
  box-shadow:var(--shadow-1);
}
.article-body{
  background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-card);
  box-shadow:var(--shadow-1);padding:32px 34px;font-size:17px;line-height:1.9;color:var(--c-text);
}
@media (max-width:640px){.article-body{padding:22px 18px}}
.article-body > *:first-child{margin-top:0}
.article-body p{margin:0 0 1.05em}
.article-body h2{
  font-size:clamp(21px,2.2vw,27px);line-height:1.45;margin:2em 0 .8em;
  padding-left:16px;position:relative;
}
.article-body h2::before{
  content:"";position:absolute;left:0;top:.24em;bottom:.24em;width:6px;border-radius:3px;background:var(--c-accent);
}
.article-body h3{font-size:20px;line-height:1.5;margin:1.6em 0 .6em}
.article-body h4{font-size:17px;line-height:1.6;margin:1.4em 0 .5em;color:var(--c-ink)}
.article-body ul,.article-body ol{margin:0 0 1.1em;padding-left:1.35em}
.article-body ul{list-style:disc}
.article-body ol{list-style:decimal}
.article-body li{margin:.35em 0}
.article-body a{color:var(--c-primary);text-decoration:underline;text-underline-offset:3px}
.article-body a:hover{color:var(--c-primary-d)}
.article-body blockquote{
  margin:1.4em 0;padding:16px 20px;background:var(--c-primary-l);
  border-left:4px solid var(--c-accent);border-radius:0 var(--r-img) var(--r-img) 0;color:var(--c-ink);
}
.article-body blockquote p:last-child{margin-bottom:0}
.article-body img{border-radius:var(--r-img);margin:1.4em auto;height:auto}
.article-body figure{margin:1.4em 0}
.article-body figcaption{font-size:14px;color:var(--c-text-2);text-align:center;margin-top:8px}
.article-body table{width:100%;border-collapse:collapse;margin:1.3em 0;font-size:15.5px}
.article-body th,.article-body td{border:1px solid var(--c-line);padding:10px 12px;text-align:left;line-height:1.7}
.article-body thead th{background:var(--c-primary-l);color:var(--c-ink);font-weight:600}
.article-body tbody tr:nth-child(even){background:#FBF9F4}
.article-body code{background:#F2EEE6;border-radius:6px;padding:2px 6px;font-size:15px;color:var(--c-primary-d)}
@media (max-width:640px){
  .article-body table{display:block;overflow-x:auto;-webkit-overflow-scrolling:touch}
}

/* ---------- empty state ---------- */
.empty-state{
  background:var(--c-surface);border:1px dashed var(--c-line);border-radius:var(--r-card);
  padding:56px 24px;text-align:center;box-shadow:var(--shadow-1);
}
.empty-state i{font-size:34px;color:var(--c-primary);margin-bottom:14px;display:block}
.empty-state h2{font-size:22px;margin-bottom:10px}
.empty-state p{color:var(--c-text-2);margin-bottom:20px}

/* ---------- side ---------- */
.toc-card{padding:20px}
.toc-title{font-size:15px;letter-spacing:.08em;color:var(--c-text-2);font-weight:600;margin-bottom:12px}
.toc-list li + li{margin-top:6px}
.toc-list a{
  display:block;padding:7px 10px;border-left:3px solid transparent;border-radius:0 8px 8px 0;
  font-size:14.5px;color:var(--c-text);line-height:1.6;overflow:hidden;text-overflow:ellipsis;
}
.toc-list a:hover{border-left-color:var(--c-accent);background:var(--c-primary-l);color:var(--c-primary)}
.side-card{padding:22px 20px}
.side-card h3{font-size:17px;margin-bottom:8px}
.side-card p{font-size:14.5px;color:var(--c-text-2);line-height:1.8;margin-bottom:14px}
.side-links li a{display:block;padding:9px 0;font-size:14.5px;color:var(--c-text);border-bottom:1px dashed var(--c-line)}
.side-links li:last-child a{border-bottom:0}
.side-links li a:hover{color:var(--c-primary)}

/* ---------- article footer blocks ---------- */
.post-foot{margin-top:26px;display:flex;flex-direction:column;gap:18px}
.tag-bar{display:flex;flex-wrap:wrap;align-items:center;gap:10px}
.tag-bar .label{font-size:14px;color:var(--c-text-2)}
.tag{
  display:inline-block;padding:6px 14px;border-radius:999px;background:var(--c-surface);
  border:1px solid var(--c-line);font-size:14px;color:var(--c-text);
}
.tag:hover{border-color:var(--c-primary);color:var(--c-primary);background:var(--c-primary-l)}
.pager{display:grid;grid-template-columns:1fr 1fr;gap:18px}
@media (max-width:640px){.pager{grid-template-columns:1fr}}
.pager a{
  display:block;padding:18px 20px;background:var(--c-surface);border:1px solid var(--c-line);
  border-radius:var(--r-card);box-shadow:var(--shadow-1);transition:transform .18s ease,box-shadow .18s ease,border-color .18s ease;
}
.pager a:hover{transform:translateY(-3px);box-shadow:var(--shadow-2);border-color:var(--c-primary)}
.pager span{display:block;font-size:13px;color:var(--c-text-2);margin-bottom:6px}
.pager b{font-size:16.5px;color:var(--c-ink);line-height:1.6;font-weight:600}

/* ---------- sections ---------- */
.section{padding:56px 0 0}
@media (min-width:768px){.section{padding:72px 0 0}}
@media (min-width:1024px){.section{padding:88px 0 0}}
.sec-title{
  display:flex;align-items:flex-start;gap:10px;
  font-size:clamp(23px,2.6vw,32px);line-height:1.35;margin-bottom:12px;
}
.sec-title::before{
  content:"";flex:0 0 12px;height:calc(1em * .74);margin-top:calc(1em * .16);
  background:var(--c-accent);border-radius:3px;
}
.sec-sub{color:var(--c-text-2);font-size:16px;max-width:760px;margin-bottom:26px}

.grid-cards{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px}
@media (max-width:1023px){.grid-cards{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media (max-width:640px){.grid-cards{grid-template-columns:1fr}}

.post-card{
  display:flex;flex-direction:column;background:var(--c-surface);border:1px solid var(--c-line);
  border-radius:var(--r-card);overflow:hidden;box-shadow:var(--shadow-1);
  transition:transform .18s ease,box-shadow .18s ease,border-color .18s ease;
}
.post-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-2);border-color:#D6CFEA}
.post-card__thumb{aspect-ratio:16/9;overflow:hidden;background:var(--c-primary-l)}
.post-card__thumb img{width:100%;height:100%;object-fit:cover;border-radius:0;transition:transform .35s ease}
.post-card:hover .post-card__thumb img{transform:scale(1.04)}
.post-card__body{padding:18px 18px 20px;display:flex;flex-direction:column;flex:1 1 auto}
.post-card__body h3{font-size:18px;line-height:1.55;margin:10px 0 8px;font-weight:600;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.post-card__body h3 a{color:var(--c-ink)}
.post-card__body h3 a:hover{color:var(--c-primary)}
.post-card__body p{font-size:15px;color:var(--c-text-2);line-height:1.75;margin-bottom:14px;
  display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden}
.post-card__meta{margin-top:auto;display:flex;align-items:center;justify-content:space-between;font-size:13.5px}
.post-card__meta time{color:var(--c-warm);font-family:var(--font-num)}
.post-card__meta .more{color:var(--c-primary);font-weight:600}
.post-card__meta .more i{transition:transform .18s ease}
.post-card:hover .post-card__meta .more i{transform:translateX(4px)}

.entry-band{
  margin-top:56px;background:var(--c-ink);border-top:3px solid var(--c-accent);
  border-radius:var(--r-card);padding:36px 34px;display:flex;flex-wrap:wrap;gap:20px;
  align-items:center;justify-content:space-between;
}
@media (min-width:1024px){.entry-band{margin-top:88px;padding:44px 46px}}
.entry-band h2{color:#fff;font-size:clamp(21px,2.2vw,28px);line-height:1.4;margin-bottom:8px}
.entry-band p{color:rgba(255,255,255,.78);font-size:15.5px;max-width:560px}
.entry-band .actions{display:flex;flex-wrap:wrap;gap:12px}
@media (max-width:640px){.entry-band .actions{width:100%;flex-direction:column}.entry-band .actions .btn{width:100%}}

/* ---------- footer ---------- */
.site-footer{background:var(--c-ink);border-top:3px solid var(--c-accent);margin-top:88px;padding:56px 0 26px;color:rgba(255,255,255,.78)}
@media (min-width:1024px){.site-footer{padding:72px 0 30px}}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.1fr;gap:32px}
@media (max-width:1023px){.footer-grid{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media (max-width:640px){.footer-grid{grid-template-columns:1fr;gap:26px}}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:14px}
.footer-brand .mark{
  width:34px;height:34px;border-radius:10px;background:var(--c-accent);color:var(--c-ink);
  display:flex;align-items:center;justify-content:center;
}
.footer-brand b{color:#fff;font-size:19px;font-weight:800}
.site-footer h4{color:#fff;font-size:15px;letter-spacing:.08em;margin-bottom:14px;font-weight:600}
.site-footer p{font-size:14.5px;line-height:1.85;color:rgba(255,255,255,.72)}
.footer-list li + li{margin-top:9px}
.footer-list a,.footer-contact li{font-size:14.5px;color:rgba(255,255,255,.78)}
.footer-list a{position:relative}
.footer-list a:hover{color:#fff;text-decoration:underline;text-decoration-color:var(--c-accent);text-underline-offset:4px}
.footer-contact li + li{margin-top:9px}
.footer-bottom{
  margin-top:34px;padding-top:18px;border-top:1px solid rgba(255,255,255,.18);
  display:flex;flex-wrap:wrap;gap:10px;justify-content:space-between;font-size:13.5px;color:rgba(255,255,255,.62);
}
.footer-bottom p{margin:0;color:inherit}

/* roulang page: category1 */
:root{
  --c-primary:#4B2EA3;
  --c-primary-d:#3A2280;
  --c-primary-l:#EDE8FB;
  --c-accent:#C8F135;
  --c-warm:#FF6A3D;
  --c-bg:#F6F3EC;
  --c-surface:#FFFFFF;
  --c-line:#E3DDD0;
  --c-ink:#241E3A;
  --c-text:#3C3555;
  --c-text-2:#6B6480;
  --r-card:14px;
  --r-btn:10px;
  --r-img:12px;
  --sh-1:0 1px 0 var(--c-line), 0 10px 24px -20px rgba(36,30,58,.55);
  --sh-2:0 1px 0 var(--c-line), 0 18px 32px -20px rgba(36,30,58,.6);
  --fs-h1:clamp(30px,4.2vw,50px);
  --fs-h2:clamp(24px,2.6vw,34px);
  --font-cn:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC",sans-serif;
  --font-num:"Inter","HarmonyOS Sans",system-ui,sans-serif;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body{
  margin:0;
  background:var(--c-bg);
  color:var(--c-text);
  font-family:var(--font-cn);
  font-size:17px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border-radius:var(--r-img);object-fit:cover;}
a{color:var(--c-primary);text-decoration:none;transition:color .18s ease,background-color .18s ease,border-color .18s ease;}
a:hover{color:var(--c-primary-d);}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4{margin:0;color:var(--c-ink);font-weight:700;}
p{margin:0 0 1.05em;}
h1{font-size:var(--fs-h1);line-height:1.25;font-weight:800;letter-spacing:-.5px;}
h2{font-size:var(--fs-h2);line-height:1.35;}
h3{font-size:22px;line-height:1.45;font-weight:600;}
button,input,textarea,select{font-family:inherit;font-size:inherit;}
:focus-visible{outline:2px solid var(--c-accent);outline-offset:2px;border-radius:4px;}

.container{max-width:1200px;margin:0 auto;padding:0 20px;}
@media (min-width:1024px){.container{padding:0 32px;}}

/* ---------- 通用按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 24px;border-radius:var(--r-btn);
  font-size:16px;font-weight:600;line-height:1;cursor:pointer;
  border:1px solid transparent;transition:transform .18s ease,box-shadow .18s ease,background-color .18s ease,color .18s ease,border-color .18s ease;
  white-space:nowrap;
}
.btn--primary{background:var(--c-primary);color:#fff;box-shadow:0 10px 22px -18px rgba(75,46,163,.9);}
.btn--primary:hover{background:var(--c-primary-d);color:#fff;transform:translateY(-2px);box-shadow:var(--sh-2);}
.btn--accent{background:var(--c-accent);color:var(--c-ink);}
.btn--accent:hover{background:#D6F75F;color:var(--c-ink);transform:translateY(-2px);box-shadow:0 12px 24px -18px rgba(36,30,58,.7);}
.btn--ghost{background:transparent;color:var(--c-primary);border-color:var(--c-primary);}
.btn--ghost:hover{background:var(--c-primary-l);color:var(--c-primary-d);transform:translateY(-2px);}
.btn--sm{height:40px;padding:0 16px;font-size:14px;}
.btn:active{transform:translateY(0);}

.badge{
  display:inline-flex;align-items:center;gap:6px;
  padding:5px 12px;border-radius:999px;background:var(--c-primary-l);
  color:var(--c-primary-d);font-size:13px;font-weight:600;line-height:1.6;
}
.badge--accent{background:var(--c-accent);color:var(--c-ink);}
.badge--warm{background:#FFEDE6;color:#B33A16;}

/* ---------- 导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:var(--c-primary);
  border-bottom:2px solid var(--c-accent);
}
.nav-wrap{display:flex;align-items:center;justify-content:space-between;height:68px;gap:16px;}
.brand{display:flex;align-items:center;gap:10px;flex-shrink:0;}
.brand__mark{
  width:36px;height:36px;border-radius:10px;background:var(--c-accent);
  display:flex;align-items:center;justify-content:center;color:var(--c-ink);font-size:17px;
}
.brand__text{color:#fff;font-size:20px;font-weight:800;letter-spacing:-.2px;}
.brand:hover .brand__text{color:var(--c-accent);}

.main-nav{flex:1;display:flex;justify-content:center;}
.main-nav .menu{display:flex;align-items:center;gap:4px;background:transparent;}
.main-nav .menu>li{position:relative;}
.main-nav .menu>li>a{
  display:block;position:relative;padding:10px 14px;
  color:rgba(255,255,255,.88);font-size:15.5px;font-weight:500;border-radius:8px;
}
.main-nav .menu>li>a::after{
  content:"";position:absolute;left:14px;right:14px;bottom:4px;height:3px;
  background:var(--c-accent);transform:scaleX(0);transform-origin:left;transition:transform .18s ease;
}
.main-nav .menu>li>a:hover{color:#fff;background:rgba(255,255,255,.08);}
.main-nav .menu>li>a:hover::after,
.main-nav .menu>li>a.is-active::after{transform:scaleX(1);}
.main-nav .menu>li>a.is-active{color:#fff;font-weight:700;}

/* Mega 面板 */
.has-mega .mega{
  position:absolute;top:calc(100% + 14px);left:50%;transform:translate(-50%,8px);
  width:780px;background:var(--c-surface);border-radius:14px;
  border-top:3px solid var(--c-accent);box-shadow:var(--sh-2);
  padding:26px;display:grid;grid-template-columns:1fr 1fr;gap:26px;
  opacity:0;visibility:hidden;transition:opacity .18s ease,transform .18s ease,visibility .18s;
}
.has-mega:hover .mega,
.has-mega:focus-within .mega{opacity:1;visibility:visible;transform:translate(-50%,0);}
.mega h4{font-size:14px;color:var(--c-text-2);letter-spacing:.4px;margin-bottom:12px;font-weight:600;}
.mega__list li a{
  display:flex;justify-content:space-between;align-items:center;gap:12px;
  padding:10px 12px;border-radius:10px;color:var(--c-ink);font-size:15px;font-weight:600;
}
.mega__list li a span{font-size:13px;font-weight:400;color:var(--c-text-2);}
.mega__list li a:hover{background:var(--c-primary-l);color:var(--c-primary-d);}
.mega__news li{padding:8px 0;border-bottom:1px dashed var(--c-line);}
.mega__news li:last-of-type{border-bottom:0;}
.mega__news li a{display:block;color:var(--c-ink);font-size:14.5px;line-height:1.6;}
.mega__news li a:hover{color:var(--c-primary);}
.mega__news time{display:block;font-size:12.5px;color:var(--c-warm);font-family:var(--font-num);}
.mega__card{display:block;margin-top:14px;border:1px solid var(--c-line);border-radius:12px;overflow:hidden;background:var(--c-bg);}
.mega__card img{height:104px;width:100%;border-radius:0;}
.mega__card b{display:block;padding:12px 14px;font-size:14.5px;color:var(--c-ink);line-height:1.6;}
.mega__card:hover b{color:var(--c-primary);}

.nav-actions{display:flex;align-items:center;gap:10px;flex-shrink:0;}
.icon-btn{
  width:40px;height:40px;border-radius:10px;border:1px solid rgba(255,255,255,.45);
  background:transparent;color:#fff;cursor:pointer;display:flex;align-items:center;justify-content:center;
  transition:background-color .18s ease,border-color .18s ease,color .18s ease;
}
.icon-btn:hover{background:rgba(255,255,255,.14);border-color:#fff;color:#fff;}
.nav-toggle{
  display:none;width:42px;height:40px;border-radius:10px;border:1px solid rgba(255,255,255,.45);
  background:transparent;cursor:pointer;flex-direction:column;justify-content:center;align-items:center;gap:4px;
}
.nav-toggle span{display:block;width:18px;height:2px;background:#fff;border-radius:2px;}

/* ---------- 板块通用 ---------- */
.section{padding:56px 0;}
@media (min-width:720px){.section{padding:72px 0;}}
@media (min-width:1024px){.section{padding:96px 0;}}
.section--tight{padding:44px 0;}
@media (min-width:1024px){.section--tight{padding:64px 0;}}
.sec-head{max-width:740px;margin-bottom:36px;}
.sec-head h2{position:relative;padding-left:20px;}
.sec-head h2::before{
  content:"";position:absolute;left:0;top:50%;transform:translateY(-50%);
  width:6px;height:.92em;background:var(--c-accent);border-radius:3px;
}
.sec-head p{margin-top:14px;color:var(--c-text-2);font-size:16.5px;}
.dark{background:var(--c-ink);color:#fff;}
.dark h2,.dark h3{color:#fff;}
.dark .sec-head p{color:rgba(255,255,255,.72);}

/* ---------- 首屏 ---------- */
.hero{padding:48px 0 56px;background:linear-gradient(180deg,#F1ECFB 0%,var(--c-bg) 62%);}
@media (min-width:1024px){.hero{padding:72px 0 84px;}}
.hero__grid{display:grid;grid-template-columns:1fr;gap:36px;align-items:center;}
@media (min-width:960px){.hero__grid{grid-template-columns:minmax(0,1fr) minmax(0,1.02fr);gap:52px;}}
.hero__copy{max-width:620px;}
.hero__copy h1{margin:18px 0 18px;}
.hero__sub{font-size:18.5px;line-height:1.8;color:var(--c-text);max-width:540px;}
.hero__actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:28px;}
.hero__fig{position:relative;}
.hero__fig img{width:100%;height:330px;border-radius:var(--r-card);box-shadow:var(--sh-1);}
@media (min-width:960px){.hero__fig img{height:420px;}}
.hero__stats{
  position:static;margin-top:16px;background:var(--c-surface);border:1px solid var(--c-line);
  border-radius:var(--r-card);box-shadow:var(--sh-1);padding:18px 20px;
  display:grid;grid-template-columns:repeat(3,1fr);gap:12px;
}
@media (min-width:700px){
  .hero__stats{position:absolute;right:-14px;bottom:-30px;margin-top:0;width:280px;grid-template-columns:1fr;gap:14px;padding:22px;}
}
.hero__stats li{border-left:3px solid var(--c-accent);padding-left:12px;}
.hero__stats b{display:block;font-family:var(--font-num);font-size:26px;font-weight:800;color:var(--c-primary);line-height:1.3;}
.hero__stats span{display:block;font-size:13px;color:var(--c-text-2);}

/* ---------- 数据带 ---------- */
.metrics{display:grid;grid-template-columns:repeat(2,1fr);gap:1px;background:#3A2C7A;border-radius:var(--r-card);overflow:hidden;}
@media (min-width:820px){.metrics{grid-template-columns:repeat(4,1fr);}}
.metrics li{background:var(--c-ink);padding:28px 22px;}
.metrics b{display:block;font-family:var(--font-num);font-size:30px;font-weight:800;color:var(--c-accent);line-height:1.25;}
.metrics span{display:block;margin-top:6px;font-size:14px;color:rgba(255,255,255,.72);}

/* ---------- 卖点错位卡 ---------- */
.benefits{display:grid;grid-template-columns:1fr;gap:24px;}
@media (min-width:820px){.benefits{grid-template-columns:repeat(3,1fr);gap:28px;}
  .benefits .card:first-child{grid-column:span 1;}
}
.card{
  background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-card);
  box-shadow:var(--sh-1);padding:26px;transition:transform .2s ease,box-shadow .2s ease;
  display:flex;flex-direction:column;
}
.card:hover{transform:translateY(-3px);box-shadow:var(--sh-2);}
.card__icon{
  width:44px;height:44px;border-radius:12px;background:var(--c-primary-l);color:var(--c-primary);
  display:flex;align-items:center;justify-content:center;font-size:18px;margin-bottom:16px;
}
.card h3{font-size:20px;margin-bottom:10px;}
.card p{font-size:15.5px;color:var(--c-text-2);margin-bottom:0;}
.card--wide{grid-column:span 1;}
@media (min-width:820px){.card--wide{grid-column:span 2;}}

/* ---------- 图文交错 ---------- */
.split{display:grid;grid-template-columns:1fr;gap:32px;align-items:center;}
@media (min-width:900px){.split{grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:52px;}
  .split--reverse .split__media{order:2;}
}
.split__media img{width:100%;height:280px;box-shadow:var(--sh-1);}
@media (min-width:900px){.split__media img{height:340px;}}
.split h3{font-size:24px;margin-bottom:14px;}
.split p{color:var(--c-text-2);font-size:16px;}
.point-list li{
  position:relative;padding-left:26px;margin-bottom:10px;font-size:16px;color:var(--c-text);
}
.point-list li::before{
  content:"";position:absolute;left:0;top:.62em;width:12px;height:12px;border-radius:4px;
  background:var(--c-accent);border:1px solid rgba(36,30,58,.15);
}

/* ---------- 步骤时间线 ---------- */
.steps{display:grid;grid-template-columns:1fr;gap:22px;counter-reset:step;}
@media (min-width:820px){.steps{grid-template-columns:repeat(2,1fr);gap:26px;}}
@media (min-width:1080px){.steps{grid-template-columns:repeat(4,1fr);}}
.step{
  background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-card);
  padding:24px 22px;box-shadow:var(--sh-1);position:relative;
}
.step::before{
  counter-increment:step;content:"0" counter(step);
  font-family:var(--font-num);font-size:14px;font-weight:800;color:var(--c-primary);
  display:inline-block;background:var(--c-primary-l);border-radius:999px;padding:3px 12px;margin-bottom:14px;
}
.step h3{font-size:18.5px;margin-bottom:8px;}
.step p{font-size:15px;color:var(--c-text-2);margin-bottom:0;}
@media (min-width:820px){
  .step::after{
    content:"";position:absolute;right:-14px;top:50%;width:14px;height:2px;background:var(--c-line);
  }
  .step:last-child::after{display:none;}
}

/* ---------- 左侧粘性条 + 双列大卡 ---------- */
.two-col{display:grid;grid-template-columns:1fr;gap:28px;}
@media (min-width:1000px){.two-col{grid-template-columns:220px minmax(0,1fr);gap:40px;}}
.side-nav{
  background:var(--c-primary-l);border-radius:var(--r-card);padding:22px 20px;border:1px solid #DED6F7;
}
@media (min-width:1000px){.side-nav{position:sticky;top:92px;align-self:start;}}
.side-nav h4{font-size:14px;color:var(--c-primary-d);letter-spacing:.6px;margin-bottom:12px;font-weight:700;}
.side-nav li{margin-bottom:4px;}
.side-nav a{
  display:block;padding:8px 10px;border-radius:8px;font-size:14.5px;color:var(--c-text);
}
.side-nav a:hover{background:#fff;color:var(--c-primary-d);}
.side-nav .is-current{background:#fff;color:var(--c-primary-d);font-weight:700;}
.side-note{margin-top:16px;padding-top:16px;border-top:1px dashed #CFC5EE;font-size:13px;color:var(--c-text-2);line-height:1.7;}

.big-grid{display:grid;grid-template-columns:1fr;gap:24px;}
@media (min-width:760px){.big-grid{grid-template-columns:repeat(2,1fr);gap:28px;}}
.big-card{
  background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-card);
  overflow:hidden;box-shadow:var(--sh-1);transition:transform .2s ease,box-shadow .2s ease;
  display:flex;flex-direction:column;
}
.big-card:hover{transform:translateY(-3px);box-shadow:var(--sh-2);}
.big-card img{width:100%;height:210px;border-radius:0;}
.big-card__body{padding:22px 22px 24px;display:flex;flex-direction:column;gap:10px;flex:1;}
.big-card__body h3{font-size:20px;}
.big-card__body p{font-size:15.5px;color:var(--c-text-2);margin:0;}
.big-card__meta{
  margin-top:auto;padding-top:14px;border-top:1px solid var(--c-line);
  display:flex;justify-content:space-between;align-items:center;font-size:14px;color:var(--c-text-2);
}
.big-card__meta .go{color:var(--c-primary);font-weight:600;}

/* ---------- FAQ ---------- */
.faq{border-top:1px solid var(--c-line);}
.faq details{border-bottom:1px solid var(--c-line);}
.faq summary{
  list-style:none;cursor:pointer;position:relative;
  padding:20px 44px 20px 4px;font-size:18px;font-weight:600;color:var(--c-ink);line-height:1.9;
}
.faq summary::-webkit-details-marker{display:none;}
.faq summary::after{
  content:"+";position:absolute;right:12px;top:50%;transform:translateY(-50%);
  font-family:var(--font-num);font-size:24px;font-weight:600;color:var(--c-primary);
  transition:transform .2s ease;
}
.faq details[open] summary{color:var(--c-primary-d);}
.faq details[open] summary::before{
  content:"";position:absolute;left:-14px;top:22px;bottom:22px;width:3px;background:var(--c-accent);border-radius:3px;
}
.faq details[open] summary::after{content:"−";}
.faq .answer{background:var(--c-primary-l);border-radius:0 0 10px 10px;padding:18px 22px;font-size:16px;line-height:1.9;color:var(--c-text);}
.faq summary:hover{color:var(--c-primary);}

/* ---------- 其他分类 + 分页 ---------- */
.rel-grid{display:grid;grid-template-columns:1fr;gap:24px;}
@media (min-width:760px){.rel-grid{grid-template-columns:repeat(3,1fr);gap:26px;}}
.rel-card{
  background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-card);
  padding:22px;box-shadow:var(--sh-1);transition:transform .2s ease,box-shadow .2s ease;
}
.rel-card:hover{transform:translateY(-3px);box-shadow:var(--sh-2);}
.rel-card b{display:block;font-size:18px;color:var(--c-ink);margin-bottom:8px;}
.rel-card span{font-size:14.5px;color:var(--c-text-2);}

.pager{display:flex;flex-wrap:wrap;gap:10px;justify-content:center;margin-top:34px;}
.pager a{
  min-width:42px;height:42px;padding:0 14px;border-radius:999px;border:1px solid var(--c-line);
  background:var(--c-surface);display:inline-flex;align-items:center;justify-content:center;
  font-family:var(--font-num);font-size:14px;font-weight:600;color:var(--c-text);transition:all .18s ease;
}
.pager a:hover{border-color:var(--c-primary);color:var(--c-primary-d);background:var(--c-primary-l);}
.pager a.is-current{background:var(--c-primary);border-color:var(--c-primary);color:#fff;}

/* ---------- 收尾 CTA ---------- */
.cta-band{
  background:var(--c-ink);border-top:3px solid var(--c-accent);border-radius:var(--r-card);
  padding:46px 28px;text-align:center;
}
@media (min-width:820px){.cta-band{padding:64px 48px;}}
.cta-band h2{color:#fff;margin-bottom:14px;}
.cta-band p{color:rgba(255,255,255,.76);max-width:620px;margin:0 auto 26px;font-size:16.5px;}
.cta-band .hero__actions{justify-content:center;margin-top:0;}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--c-ink);border-top:3px solid var(--c-accent);margin-top:0;padding:60px 0 26px;}
.footer-grid{display:grid;grid-template-columns:1fr;gap:34px;}
@media (min-width:760px){.footer-grid{grid-template-columns:repeat(2,1fr);gap:34px;}}
@media (min-width:1000px){.footer-grid{grid-template-columns:1.5fr 1fr 1fr 1fr;gap:40px;}}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:14px;}
.footer-brand .mark{
  width:34px;height:34px;border-radius:10px;background:var(--c-accent);color:var(--c-ink);
  display:flex;align-items:center;justify-content:center;font-size:16px;
}
.footer-brand b{color:#fff;font-size:19px;font-weight:800;}
.site-footer p{color:rgba(255,255,255,.72);font-size:15px;margin:0;max-width:340px;}
.site-footer h4{color:#fff;font-size:15px;margin-bottom:16px;letter-spacing:.4px;}
.footer-list li{margin-bottom:10px;}
.footer-list a,.footer-contact li{color:rgba(255,255,255,.78);font-size:14.5px;}
.footer-list a:hover{color:#fff;text-decoration:underline;text-decoration-color:var(--c-accent);text-underline-offset:4px;}
.footer-contact li{margin-bottom:10px;}
.footer-bottom{
  margin-top:44px;padding-top:22px;border-top:1px solid rgba(255,255,255,.16);
  display:flex;flex-wrap:wrap;gap:10px;justify-content:space-between;align-items:center;
}
.footer-bottom p{font-size:13.5px;color:rgba(255,255,255,.6);}

/* ---------- 移动端导航抽屉 ---------- */
@media (max-width:1024px){
  .nav-toggle{display:flex;}
  .main-nav{
    position:fixed;top:0;left:0;bottom:0;width:290px;max-width:85vw;
    background:var(--c-primary);padding:80px 18px 24px;transform:translateX(-102%);
    transition:transform .26s ease;overflow-y:auto;z-index:70;display:block;
    box-shadow:6px 0 30px -18px rgba(0,0,0,.7);
  }
  .main-nav.is-open{transform:translateX(0);}
  .main-nav .menu{flex-direction:column;align-items:stretch;gap:2px;}
  .main-nav .menu>li>a{padding:14px 12px;font-size:16px;border-radius:10px;}
  .main-nav .menu>li>a::after{left:12px;right:auto;width:24px;bottom:8px;}
  .has-mega .mega{
    position:static;transform:none;opacity:1;visibility:visible;width:100%;
    display:none;grid-template-columns:1fr;gap:14px;margin:6px 0 10px;padding:18px;
    border-radius:12px;box-shadow:none;
  }
  .has-mega.is-open .mega{display:grid;}
  .has-mega:hover .mega{transform:none;}
  body.nav-open::after{
    content:"";position:fixed;inset:0;background:rgba(36,30,58,.62);z-index:65;
  }
  .brand__text{font-size:18px;}
}
@media (max-width:520px){
  .hero__actions{flex-direction:column;align-items:stretch;}
  .hero__actions .btn{width:100%;}
  .big-card img{height:180px;}
}

/* roulang page: category2 */
:root{
  --c-primary:#4B2EA3;
  --c-primary-d:#3A2280;
  --c-primary-l:#EDE8FB;
  --c-accent:#C8F135;
  --c-warm:#FF6A3D;
  --c-bg:#F6F3EC;
  --c-surface:#FFFFFF;
  --c-line:#E3DDD0;
  --c-ink:#241E3A;
  --c-text:#3C3555;
  --c-text-2:#6B6480;
  --r-card:14px;
  --r-btn:10px;
  --r-img:12px;
  --shadow-1:0 1px 0 var(--c-line),0 10px 24px -20px rgba(36,30,58,.55);
  --shadow-2:0 1px 0 var(--c-line),0 18px 32px -20px rgba(36,30,58,.6);
  --font-cn:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC",sans-serif;
  --font-num:"Inter","HarmonyOS Sans",system-ui,sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:var(--font-cn);
  font-size:17px;
  line-height:1.85;
  color:var(--c-text);
  background:var(--c-bg);
  overflow-x:hidden;
}
img{max-width:100%;display:block;border-radius:var(--r-img);object-fit:cover}
a{color:var(--c-primary);text-decoration:none;transition:color .18s,background .18s}
button,input,textarea,select{font:inherit;color:inherit}
ul,ol{margin:0;padding:0}
p{margin:0 0 1.05em}
:focus-visible{outline:2px solid var(--c-accent);outline-offset:2px}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 20px}
.grid-container{max-width:1200px;padding:0 20px}

h1,h2,h3,h4{color:var(--c-ink);margin:0 0 14px;font-weight:700}
h1{font-size:clamp(30px,4.2vw,50px);line-height:1.25;font-weight:800;letter-spacing:-.5px}
h2{font-size:clamp(24px,2.6vw,34px);line-height:1.35;position:relative;padding-left:20px}
h2::before{content:"";position:absolute;left:0;top:.14em;width:12px;height:.82em;background:var(--c-accent);border-radius:3px}
h3{font-size:21px;line-height:1.45;font-weight:600}
h4{font-size:17px;line-height:1.5;font-weight:600}
strong{color:var(--c-ink)}

/* 顶部导航 */
.site-header{position:sticky;top:0;z-index:80;background:var(--c-primary);border-bottom:2px solid var(--c-accent);box-shadow:0 10px 26px -22px rgba(36,30,58,.9)}
.nav-wrap{display:flex;align-items:center;gap:22px;min-height:68px}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto}
.brand__mark{width:36px;height:36px;border-radius:10px;background:var(--c-accent);display:flex;align-items:center;justify-content:center;color:var(--c-primary);font-size:17px}
.brand__text{color:#fff;font-size:20px;font-weight:800;letter-spacing:.2px}
.brand:hover .brand__text{color:var(--c-accent)}
.main-nav{margin-left:auto}
.menu{display:flex;align-items:center;gap:2px;list-style:none}
.menu>li{position:relative}
.menu>li>a{display:block;padding:10px 13px;color:rgba(255,255,255,.92);font-size:15.5px;font-weight:500;border-radius:8px;position:relative}
.menu>li>a::after{content:"";position:absolute;left:13px;right:13px;bottom:3px;height:3px;background:var(--c-accent);transform:scaleX(0);transform-origin:left;transition:transform .18s}
.menu>li>a:hover{background:var(--c-primary-d);color:#fff}
.menu>li>a:hover::after,.menu>li>a.is-active::after{transform:scaleX(1)}
.menu>li>a.is-active{color:#fff;font-weight:700}
.nav-actions{display:flex;align-items:center;gap:10px;flex:0 0 auto}
.icon-btn{width:40px;height:40px;border-radius:10px;border:1px solid rgba(255,255,255,.45);background:transparent;color:#fff;cursor:pointer;display:inline-flex;align-items:center;justify-content:center;transition:.18s}
.icon-btn:hover{background:rgba(255,255,255,.14);border-color:#fff}
.icon-btn:active{transform:scale(.96)}
.nav-toggle{display:none;width:42px;height:40px;border-radius:10px;border:1px solid rgba(255,255,255,.45);background:transparent;cursor:pointer;flex-direction:column;align-items:center;justify-content:center;gap:5px}
.nav-toggle span{display:block;width:19px;height:2px;background:#fff;border-radius:2px;transition:.2s}
.nav-mask{display:none}

/* Mega 面板 */
.has-mega .mega{
  position:absolute;top:calc(100% + 16px);right:0;
  width:780px;background:var(--c-surface);border-radius:14px;
  border-top:3px solid var(--c-accent);box-shadow:var(--shadow-2);
  display:grid;grid-template-columns:1fr 1fr;gap:26px;padding:26px;
  opacity:0;visibility:hidden;transform:translateY(8px);
  transition:opacity .2s,transform .2s,visibility .2s;z-index:90;
}
.has-mega:hover .mega,.has-mega:focus-within .mega{opacity:1;visibility:visible;transform:translateY(0)}
.mega__col h4{font-size:13px;letter-spacing:.08em;color:var(--c-text-2);text-transform:none;font-weight:700;margin-bottom:12px}
.mega__list,.mega__news{list-style:none}
.mega__list li a{display:flex;justify-content:space-between;align-items:center;gap:10px;padding:10px 12px;border-radius:10px;color:var(--c-ink);font-size:15px;font-weight:600}
.mega__list li a span{font-size:13px;color:var(--c-text-2);font-weight:400}
.mega__list li a:hover{background:var(--c-primary-l);color:var(--c-primary)}
.mega__news li{padding:9px 0;border-bottom:1px dashed var(--c-line)}
.mega__news li a{font-size:14.5px;color:var(--c-text);display:block}
.mega__news li a:hover{color:var(--c-primary)}
.mega__news li time{display:block;font-size:12.5px;color:var(--c-warm);font-family:var(--font-num)}
.mega__card{display:flex;gap:12px;align-items:center;margin-top:14px;padding:10px;border:1px solid var(--c-line);border-radius:12px;background:var(--c-bg)}
.mega__card img{width:66px;height:52px;flex:0 0 66px}
.mega__card b{font-size:14.5px;color:var(--c-ink);font-weight:600;line-height:1.5}
.mega__card:hover{border-color:var(--c-primary);background:var(--c-primary-l)}

/* 按钮 */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:12px 22px;border-radius:var(--r-btn);font-size:16px;font-weight:600;border:1px solid transparent;cursor:pointer;line-height:1.3;transition:transform .18s,box-shadow .18s,background .18s,color .18s,border-color .18s}
.btn:hover{transform:translateY(-2px);box-shadow:var(--shadow-2)}
.btn:active{transform:translateY(0);box-shadow:none}
.btn--primary{background:var(--c-primary);color:#fff}
.btn--primary:hover{background:var(--c-primary-d);color:#fff}
.btn--accent{background:var(--c-accent);color:var(--c-ink)}
.btn--accent:hover{background:#d8ff4f;color:var(--c-ink)}
.btn--ghost{background:transparent;color:var(--c-ink);border-color:var(--c-line)}
.btn--ghost:hover{border-color:var(--c-primary);color:var(--c-primary);background:#fff}
.btn--on-dark{color:#fff;border-color:rgba(255,255,255,.42)}
.btn--on-dark:hover{color:var(--c-ink);background:#fff;border-color:#fff}
.btn--sm{padding:8px 16px;font-size:15px}
.btn-row{display:flex;flex-wrap:wrap;gap:12px}

/* 标签与徽章 */
.tag{display:inline-flex;align-items:center;gap:6px;padding:5px 14px;border-radius:999px;font-size:13.5px;font-weight:600;background:var(--c-primary-l);color:var(--c-primary)}
.tag--accent{background:var(--c-accent);color:var(--c-ink)}
.badge{display:inline-block;padding:4px 12px;border-radius:999px;background:var(--c-primary-l);color:var(--c-primary);font-size:13px;font-weight:600;margin-bottom:10px}

/* 面包屑 */
.breadcrumb{margin-bottom:22px}
.breadcrumb ol{list-style:none;display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:14px;color:var(--c-text-2)}
.breadcrumb li+li::before{content:"/";margin-right:8px;color:var(--c-line)}
.breadcrumb a{color:var(--c-text-2)}
.breadcrumb a:hover{color:var(--c-primary)}

/* Hero */
.hero{padding:44px 0 76px;background:var(--c-bg);position:relative}
.hero__grid{display:grid;grid-template-columns:minmax(0,1.05fr) minmax(0,.85fr);gap:48px;align-items:center}
.hero__sub{font-size:20px;line-height:1.7;color:var(--c-ink);font-weight:600;margin:14px 0 12px;max-width:620px}
.hero__desc{font-size:16.5px;line-height:1.85;color:var(--c-text);max-width:600px}
.hero__copy .btn-row{margin-top:24px}
.hero__media{position:relative}
.hero__media>img{width:100%;aspect-ratio:4/3;box-shadow:var(--shadow-1)}
.hero__stat{position:absolute;left:-18px;bottom:-26px;background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-card);box-shadow:var(--shadow-2);padding:16px 20px;display:flex;gap:22px}
.stat b{display:block;font-family:var(--font-num);font-size:26px;line-height:1.2;color:var(--c-primary);font-weight:800}
.stat span{display:block;font-size:13px;color:var(--c-text-2);line-height:1.5;margin-top:2px}

/* 板块通用 */
.section{padding:72px 0}
.section--paper{background:var(--c-surface)}
.section--soft{background:var(--c-primary-l)}
.section--tight{padding-top:56px}
.sec-head{max-width:760px;margin-bottom:34px}
.sec-head p{color:var(--c-text-2);font-size:16px;margin:10px 0 0;line-height:1.8}

/* 标签云 */
.tagcloud{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:34px}
.tagcloud li{list-style:none;padding:7px 16px;border-radius:999px;background:var(--c-primary-l);border:1px solid #DDD5F7;color:var(--c-primary);font-size:14.5px;font-weight:500}
.tagcloud li:hover{background:var(--c-accent);color:var(--c-ink);border-color:var(--c-accent)}
.tag-row{display:flex;flex-wrap:wrap;gap:12px;list-style:none;margin:0 0 32px;padding:0}
.tag-row li{padding:7px 16px;border-radius:999px;background:var(--c-primary-l);border:1px solid #DDD5F7;color:var(--c-primary);font-size:14.5px;font-weight:500}

/* 三列紧凑卡 */
.cards-3{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:28px}
.scard{background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-card);box-shadow:var(--shadow-1);overflow:hidden;display:flex;flex-direction:column;transition:transform .2s,box-shadow .2s,border-color .2s}
.scard:hover{transform:translateY(-3px);box-shadow:var(--shadow-2);border-color:#D7CDF2}
.scard__media img{width:100%;aspect-ratio:4/3;border-radius:0}
.scard__body{padding:20px 22px 0}
.scard h3{font-size:19px;margin-bottom:8px}
.scard p{font-size:15px;color:var(--c-text-2);line-height:1.78;margin-bottom:0}
.scard__meta{margin-top:auto;display:flex;justify-content:space-between;align-items:center;padding:14px 22px;border-top:1px solid var(--c-line);font-size:13.5px;color:var(--c-warm);font-weight:500}
.scard__meta .arrow{color:var(--c-primary);font-weight:700;transition:transform .2s}
.scard:hover .scard__meta .arrow{transform:translateX(4px)}

/* 图文交错 */
.feature-row{display:grid;grid-template-columns:minmax(0,.9fr) minmax(0,1.1fr);gap:44px;align-items:center;margin-bottom:44px}
.feature-row:last-child{margin-bottom:0}
.feature-row--rev .feature-row__media{order:2}
.feature-row__media img{width:100%;aspect-ratio:16/11;box-shadow:var(--shadow-1)}
.feature-row h3{margin-bottom:14px}
.point-list{list-style:none;display:grid;gap:12px}
.point-list li{position:relative;padding-left:26px;font-size:16px;line-height:1.8}
.point-list li::before{content:"";position:absolute;left:0;top:.62em;width:12px;height:12px;border-radius:4px;background:var(--c-accent)}
.point-list--purple li::before{background:var(--c-primary)}

/* 场景卡 */
.cards-4{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:24px}
.ccard{background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-card);padding:24px 22px;box-shadow:var(--shadow-1);transition:transform .2s,box-shadow .2s}
.ccard:hover{transform:translateY(-3px);box-shadow:var(--shadow-2)}
.ccard__icon{width:44px;height:44px;border-radius:12px;background:var(--c-accent);color:var(--c-ink);display:flex;align-items:center;justify-content:center;font-size:18px;margin-bottom:14px}
.ccard h3{font-size:18px;margin-bottom:8px}
.ccard p{font-size:15px;color:var(--c-text-2);line-height:1.78;margin:0}

/* 流程步骤 */
.flow{display:grid;grid-template-columns:repeat(5,minmax(0,1fr));gap:18px;counter-reset:step}
.flow__item{background:var(--c-surface);border:1px solid var(--c-line);border-top:3px solid var(--c-accent);border-radius:var(--r-card);padding:22px 20px;box-shadow:var(--shadow-1);transition:transform .2s,box-shadow .2s}
.flow__item:hover{transform:translateY(-3px);box-shadow:var(--shadow-2)}
.flow__num{font-family:var(--font-num);font-size:14px;font-weight:800;color:var(--c-primary);background:var(--c-primary-l);border-radius:8px;padding:3px 10px;display:inline-block;margin-bottom:12px}
.flow__item h3{font-size:17px;margin-bottom:6px}
.flow__item p{font-size:14.5px;color:var(--c-text-2);line-height:1.75;margin:0}

/* FAQ */
.accordion.faq{list-style:none;background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-card);overflow:hidden;margin:0}
.faq .faq__item{border-top:1px solid var(--c-line);position:relative}
.faq .faq__item:first-child{border-top:0}
.faq__toggle{position:absolute;opacity:0;width:1px;height:1px;pointer-events:none}
.faq__label{display:flex;justify-content:space-between;align-items:flex-start;gap:16px;padding:18px 22px;font-size:18px;font-weight:600;line-height:1.7;color:var(--c-ink);cursor:pointer;margin:0;transition:background .18s}
.faq__label:hover{background:var(--c-primary-l)}
.faq__label .ico{flex:0 0 auto;width:24px;height:24px;border-radius:50%;background:var(--c-primary-l);color:var(--c-primary);display:flex;align-items:center;justify-content:center;font-size:15px;font-weight:700;transition:transform .22s,background .22s,color .22s}
.faq__toggle:checked~.faq__label{background:var(--c-surface);box-shadow:inset 3px 0 0 var(--c-accent)}
.faq__toggle:checked~.faq__label .ico{background:var(--c-accent);color:var(--c-ink);transform:rotate(45deg)}
.faq__toggle:focus-visible~.faq__label{outline:2px solid var(--c-accent);outline-offset:-2px}
.faq__panel{max-height:0;overflow:hidden;transition:max-height .3s ease;background:var(--c-primary-l)}
.faq__toggle:checked~.faq__panel{max-height:460px}
.faq__panel p{margin:0;padding:4px 22px 20px;font-size:16px;line-height:1.9;color:var(--c-text)}

/* 其他分类 */
.other-cats{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px}
.ocat{display:block;background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-card);overflow:hidden;box-shadow:var(--shadow-1);transition:transform .2s,box-shadow .2s,border-color .2s}
.ocat:hover{transform:translateY(-3px);box-shadow:var(--shadow-2);border-color:#D7CDF2}
.ocat img{width:100%;aspect-ratio:16/9;border-radius:0}
.ocat__body{padding:18px 20px 20px}
.ocat h3{font-size:18px;margin-bottom:6px;color:var(--c-ink)}
.ocat p{font-size:14.5px;color:var(--c-text-2);line-height:1.75;margin:0}
.ocat:hover h3{color:var(--c-primary)}

/* 分页 */
.pagination{display:flex;flex-wrap:wrap;gap:8px;justify-content:center;list-style:none;margin:40px 0 0;padding:0}
.pagination li{margin:0}
.pagination a,.pagination span{display:inline-flex;align-items:center;justify-content:center;min-width:44px;height:44px;padding:0 16px;border-radius:999px;border:1px solid var(--c-line);background:var(--c-surface);color:var(--c-text);font-size:15px;font-weight:500;transition:.18s}
.pagination a:hover{border-color:var(--c-primary);color:var(--c-primary);box-shadow:var(--shadow-1)}
.pagination .current{background:var(--c-primary);border-color:var(--c-primary);color:#fff}

/* 收尾 CTA */
.cta-band{background:var(--c-ink);border-top:3px solid var(--c-accent);padding:76px 0;color:rgba(255,255,255,.86)}
.cta-band__inner{display:grid;grid-template-columns:minmax(0,1fr) auto;gap:32px;align-items:center}
.cta-band h2{color:#fff;margin-bottom:10px}
.cta-band h2::before{background:var(--c-accent)}
.cta-band p{margin:0;font-size:16px;max-width:620px}
.cta-band .btn-row{margin:0}

/* 页脚 */
.site-footer{background:var(--c-ink);color:rgba(255,255,255,.78);border-top:3px solid var(--c-accent);padding:64px 0 28px;font-size:14.5px}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.1fr;gap:36px}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:14px}
.footer-brand .mark{width:34px;height:34px;border-radius:10px;background:var(--c-accent);color:var(--c-ink);display:flex;align-items:center;justify-content:center;font-size:16px}
.footer-brand b{color:#fff;font-size:19px;font-weight:800}
.site-footer p{line-height:1.85;margin:0}
.site-footer h4{color:#fff;font-size:16px;margin-bottom:14px}
.footer-list,.footer-contact{list-style:none;display:grid;gap:10px}
.footer-list a{color:rgba(255,255,255,.78)}
.footer-list a:hover{color:#fff;text-decoration:underline;text-decoration-color:var(--c-accent);text-underline-offset:4px}
.footer-contact li{color:rgba(255,255,255,.78)}
.footer-bottom{margin-top:44px;padding-top:20px;border-top:1px solid rgba(255,255,255,.16);display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;font-size:13.5px;color:rgba(255,255,255,.62)}
.footer-bottom p{margin:0}

/* 响应式 */
@media (max-width:1024px){
  .hero__grid{grid-template-columns:1fr;gap:36px}
  .hero__stat{left:auto;right:14px;bottom:-22px}
  .cards-3,.other-cats{grid-template-columns:repeat(2,minmax(0,1fr));gap:22px}
  .cards-4{grid-template-columns:repeat(2,minmax(0,1fr));gap:20px}
  .flow{grid-template-columns:repeat(3,minmax(0,1fr))}
  .feature-row{grid-template-columns:1fr;gap:28px}
  .feature-row--rev .feature-row__media{order:0}
  .cta-band__inner{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:30px}
  .mega{display:none}
}
@media (max-width:980px){
  .nav-toggle{display:flex}
  .main-nav{position:fixed;top:0;left:0;bottom:0;width:290px;max-width:84vw;background:var(--c-primary-d);padding:26px 18px;transform:translateX(-102%);transition:transform .26s ease;overflow-y:auto;z-index:95;margin-left:0}
  body.nav-open .main-nav{transform:translateX(0)}
  body.nav-open .nav-mask{display:block;position:fixed;inset:0;background:rgba(36,30,58,.55);z-index:90}
  .menu{flex-direction:column;align-items:stretch;gap:2px}
  .menu>li>a{padding:13px 12px;font-size:16px}
  .menu>li>a::after{left:12px;right:auto;width:22px;bottom:6px}
  .has-mega .mega{position:static;width:auto;opacity:1;visibility:visible;transform:none;box-shadow:none;border-top:0;border-left:3px solid var(--c-accent);border-radius:10px;grid-template-columns:1fr;gap:16px;padding:14px 12px;margin:6px 0 10px;background:rgba(255,255,255,.06)}
  .mega__col h4{color:rgba(255,255,255,.66)}
  .mega__list li a{color:#fff}
  .mega__list li a span{color:rgba(255,255,255,.6)}
  .mega__list li a:hover{background:rgba(255,255,255,.12);color:var(--c-accent)}
  .mega__news li{border-bottom-color:rgba(255,255,255,.14)}
  .mega__news li a{color:rgba(255,255,255,.86)}
  .mega__card{background:rgba(255,255,255,.1);border-color:rgba(255,255,255,.2)}
  .mega__card b{color:#fff}
  body.nav-open{overflow:hidden}
}
@media (max-width:767px){
  body{font-size:16.5px}
  .container{padding:0 18px}
  .section{padding:56px 0}
  .hero{padding:32px 0 60px}
  .hero__stat{position:static;margin-top:18px;left:auto;right:auto;bottom:auto;justify-content:space-between;gap:12px;padding:14px 16px}
  .hero__stat .stat b{font-size:22px}
  .cards-3,.cards-4,.other-cats{grid-template-columns:1fr}
  .flow{grid-template-columns:1fr}
  .btn-row{flex-direction:column;align-items:stretch}
  .btn-row .btn{width:100%}
  .cta-band{padding:56px 0}
  .cta-band .btn-row .btn{width:100%}
  .footer-grid{grid-template-columns:1fr;gap:26px}
  .footer-bottom{flex-direction:column;gap:8px}
  .faq__label{font-size:16.5px;padding:16px 18px}
  .faq__panel p{padding:2px 18px 18px;font-size:15.5px}
}
@media (max-width:520px){
  .brand__text{font-size:17px}
  h1{font-size:28px}
  .hero__sub{font-size:17px}
  .nav-actions .btn--sm{padding:7px 12px;font-size:14px}
  .icon-btn{width:38px;height:38px}
}

/* roulang page: category3 */
:root{
  --c-primary:#4B2EA3;
  --c-primary-d:#3A2280;
  --c-primary-l:#EDE8FB;
  --c-accent:#C8F135;
  --c-warm:#FF6A3D;
  --c-bg:#F6F3EC;
  --c-surface:#FFFFFF;
  --c-line:#E3DDD0;
  --c-line-dark:#3A2C7A;
  --c-ink:#241E3A;
  --c-text:#3C3555;
  --c-text-2:#6B6480;
  --r-card:14px;
  --r-btn:10px;
  --r-img:12px;
  --sh-1:0 1px 0 var(--c-line),0 10px 24px -20px rgba(36,30,58,.55);
  --sh-2:0 1px 0 var(--c-line),0 18px 32px -20px rgba(36,30,58,.6);
  --ff-cn:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC",sans-serif;
  --ff-num:"Inter","HarmonyOS Sans",system-ui,sans-serif;
  --sp-sec:56px;
}
@media (min-width:768px){:root{--sp-sec:72px}}
@media (min-width:1024px){:root{--sp-sec:96px}}

*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:var(--ff-cn);
  font-size:17px;
  line-height:1.85;
  color:var(--c-text);
  background:var(--c-bg);
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
h1,h2,h3,h4{margin:0;color:var(--c-ink);font-weight:700;line-height:1.35}
h1{font-size:clamp(30px,4.2vw,50px);line-height:1.25;font-weight:800;letter-spacing:-.5px}
h2{font-size:clamp(24px,2.6vw,34px);line-height:1.35}
h3{font-size:20px;line-height:1.45;font-weight:600}
p{margin:0 0 1.05em}
p:last-child{margin-bottom:0}
a{color:inherit;text-decoration:none;transition:color .18s,background-color .18s,border-color .18s,transform .18s}
img{max-width:100%;display:block;border-radius:var(--r-img);object-fit:cover}
ul,ol{margin:0;padding:0;list-style:none}
button{font:inherit;cursor:pointer;border:0;background:none;color:inherit}
input,textarea,select{font:inherit;color:inherit}
:focus-visible{outline:2px solid var(--c-accent);outline-offset:2px;border-radius:4px}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 20px}
@media (min-width:1024px){.container{padding:0 32px}}
@media (min-width:1280px){.container{max-width:1200px}}

/* ---------- 通用组件 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 22px;border-radius:var(--r-btn);
  font-size:15.5px;font-weight:600;line-height:1;
  border:1px solid transparent;cursor:pointer;
  transition:transform .18s,box-shadow .18s,background-color .18s,color .18s,border-color .18s;
}
.btn--primary{background:var(--c-primary);color:#fff;border-color:var(--c-primary)}
.btn--primary:hover{background:var(--c-primary-d);border-color:var(--c-primary-d);transform:translateY(-2px);box-shadow:0 12px 22px -16px rgba(75,46,163,.9)}
.btn--accent{background:var(--c-accent);color:var(--c-ink);border-color:var(--c-accent)}
.btn--accent:hover{background:#d6ff4d;border-color:#d6ff4d;transform:translateY(-2px);box-shadow:0 12px 22px -16px rgba(36,30,58,.7)}
.btn--ghost{background:transparent;color:var(--c-ink);border-color:var(--c-ink)}
.btn--ghost:hover{background:var(--c-ink);color:#fff;transform:translateY(-2px)}
.btn--sm{height:40px;padding:0 16px;font-size:14.5px}
.btn:active{transform:translateY(0)}
.btn--block{width:100%}

.chip{
  display:inline-flex;align-items:center;gap:6px;
  padding:5px 12px;border-radius:999px;font-size:13px;line-height:1.5;
  background:var(--c-primary-l);color:var(--c-primary);border:1px solid transparent;
}
.chip--warm{background:rgba(255,106,61,.12);color:#C9431A}
.chip--line{background:transparent;border-color:var(--c-line);color:var(--c-text-2)}

.sec{padding:var(--sp-sec) 0}
.sec--tight{padding:calc(var(--sp-sec) * .72) 0}
.sec-head{max-width:760px;margin-bottom:34px}
.sec-head h2{position:relative;padding-left:20px}
.sec-head h2::before{content:"";position:absolute;left:0;top:.28em;width:12px;height:calc(100% - .56em);min-height:24px;background:var(--c-accent);border-radius:3px}
.sec-head p{margin-top:14px;color:var(--c-text-2);font-size:16px;line-height:1.85}
.sec-head--center{margin-left:auto;margin-right:auto;text-align:left}

/* ---------- 导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:var(--c-primary);
  border-bottom:2px solid var(--c-accent);
}
.nav-wrap{display:flex;align-items:center;gap:20px;height:68px}
.brand{display:inline-flex;align-items:center;gap:10px;flex:0 0 auto}
.brand__mark{
  width:36px;height:36px;border-radius:10px;background:var(--c-accent);
  display:inline-flex;align-items:center;justify-content:center;
  color:var(--c-ink);font-size:17px;
}
.brand__text{color:#fff;font-size:20px;font-weight:800;letter-spacing:.2px;white-space:nowrap}

.main-nav{margin-left:auto}
.main-nav .menu{
  display:flex;align-items:center;gap:2px;margin:0;padding:0;list-style:none;flex-wrap:nowrap;background:transparent;
}
.main-nav .menu>li{position:relative;margin:0;float:none}
.main-nav .menu>li>a{
  display:inline-flex;align-items:center;height:66px;padding:0 13px;
  color:rgba(255,255,255,.86);font-size:15.5px;font-weight:500;
  position:relative;white-space:nowrap;
}
.main-nav .menu>li>a::after{
  content:"";position:absolute;left:13px;right:13px;bottom:14px;height:3px;
  background:var(--c-accent);transform:scaleX(0);transform-origin:left;
  transition:transform .18s ease;
}
.main-nav .menu>li>a:hover{color:#fff}
.main-nav .menu>li>a:hover::after,
.main-nav .menu>li>a:focus-visible::after,
.main-nav .menu>li>a.is-active::after{transform:scaleX(1)}
.main-nav .menu>li>a.is-active{color:#fff;font-weight:700}
.main-nav .menu>li>a.is-active::before{
  content:"";position:absolute;left:13px;right:13px;bottom:8px;height:5px;
  background:rgba(200,241,53,.28);border-radius:3px;
}

/* Mega 面板 */
.has-mega .mega{
  position:absolute;top:100%;right:0;
  width:760px;padding:26px 26px 24px;
  background:var(--c-surface);border-radius:14px;
  border-top:3px solid var(--c-accent);
  box-shadow:var(--sh-2);
  display:grid;grid-template-columns:1fr 1fr;gap:28px;
  opacity:0;visibility:hidden;pointer-events:none;transform:translateY(10px);
  transition:opacity .18s ease,transform .18s ease,visibility .18s;
  z-index:70;
}
.has-mega:hover .mega,
.has-mega:focus-within .mega{opacity:1;visibility:visible;pointer-events:auto;transform:translateY(0)}
.mega__col h4{
  font-size:13px;letter-spacing:1px;color:var(--c-text-2);font-weight:700;
  padding-bottom:10px;margin-bottom:6px;border-bottom:1px solid var(--c-line);
}
.mega__list li a{
  display:flex;align-items:center;justify-content:space-between;gap:10px;
  padding:9px 10px;border-radius:10px;font-size:15px;color:var(--c-ink);font-weight:600;
}
.mega__list li a span{font-size:12.5px;color:var(--c-text-2);font-weight:400}
.mega__list li a:hover{background:var(--c-primary-l);color:var(--c-primary)}
.mega__news li{padding:8px 10px;border-radius:10px;transition:background-color .18s}
.mega__news li:hover{background:var(--c-bg)}
.mega__news li a{display:block;font-size:14.5px;color:var(--c-ink);line-height:1.6}
.mega__news li a:hover{color:var(--c-primary)}
.mega__news li time{display:block;font-size:12.5px;color:var(--c-warm);font-family:var(--ff-num);margin-top:2px}
.mega__card{
  display:flex;align-items:center;gap:12px;margin-top:12px;padding:10px;
  border:1px solid var(--c-line);border-radius:12px;background:var(--c-bg);
}
.mega__card img{width:64px;height:48px;flex:0 0 auto}
.mega__card b{font-size:14px;font-weight:600;color:var(--c-ink);line-height:1.5}
.mega__card:hover{border-color:var(--c-primary);background:var(--c-primary-l)}

.nav-actions{display:flex;align-items:center;gap:10px;flex:0 0 auto}
.icon-btn{
  width:40px;height:40px;border-radius:10px;border:1px solid rgba(255,255,255,.4);
  color:#fff;display:inline-flex;align-items:center;justify-content:center;font-size:15px;
  transition:background-color .18s,border-color .18s,transform .18s;
}
.icon-btn:hover{background:rgba(255,255,255,.14);border-color:#fff;transform:translateY(-1px)}
.nav-toggle{
  display:none;width:42px;height:42px;border-radius:10px;
  border:1px solid rgba(255,255,255,.4);
  flex-direction:column;align-items:center;justify-content:center;gap:5px;
}
.nav-toggle span{display:block;width:18px;height:2px;background:#fff;border-radius:2px;transition:transform .2s,opacity .2s}
.nav-toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.nav-toggle[aria-expanded="true"] span:nth-child(2){opacity:0}
.nav-toggle[aria-expanded="true"] span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}
.nav-mask{
  position:fixed;inset:0;background:rgba(36,30,58,.55);z-index:75;
  opacity:0;visibility:hidden;transition:opacity .22s,visibility .22s;
}
.nav-mask.is-open{opacity:1;visibility:visible}
body.nav-open{overflow:hidden}

@media (max-width:1023px){
  .nav-wrap{height:56px;gap:12px}
  .brand__text{font-size:18px}
  .nav-toggle{display:flex}
  .icon-btn{width:38px;height:38px}
  .nav-actions .btn--sm{display:none}
  .main-nav{
    position:fixed;top:0;left:0;bottom:0;width:290px;max-width:84vw;
    background:var(--c-primary);z-index:80;margin:0;
    padding:22px 0 40px;overflow-y:auto;
    transform:translateX(-100%);transition:transform .26s ease;
    border-right:3px solid var(--c-accent);
  }
  .main-nav.is-open{transform:translateX(0)}
  .main-nav .menu{flex-direction:column;align-items:stretch;gap:0}
  .main-nav .menu>li{border-bottom:1px solid rgba(255,255,255,.12)}
  .main-nav .menu>li>a{height:auto;padding:15px 24px;font-size:16px;border-radius:0}
  .main-nav .menu>li>a::after,.main-nav .menu>li>a.is-active::before{display:none}
  .main-nav .menu>li>a.is-active{background:rgba(200,241,53,.14);color:#fff}
  .has-mega .mega{display:none}
}
@media (max-width:520px){
  .brand__text{font-size:16.5px}
  .brand__mark{width:32px;height:32px;font-size:15px}
}

/* ---------- 分类 Hero ---------- */
.page-hero{
  position:relative;overflow:hidden;
  padding:56px 0 64px;
  background:var(--c-bg);
}
.page-hero::after{
  content:"";position:absolute;right:-90px;top:-90px;width:280px;height:280px;
  border:26px solid var(--c-primary-l);border-radius:50%;z-index:0;
}
.page-hero .container{position:relative;z-index:1}
.hero-grid{display:grid;grid-template-columns:1fr;gap:36px;align-items:center}
@media (min-width:1024px){.hero-grid{grid-template-columns:1.05fr .95fr;gap:52px}}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  padding:6px 14px;border-radius:999px;background:var(--c-accent);color:var(--c-ink);
  font-size:13.5px;font-weight:700;letter-spacing:.4px;margin-bottom:18px;
}
.hero-copy h1{margin-bottom:16px}
.hero-sub{font-size:17px;line-height:1.9;color:var(--c-text-2);max-width:600px}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:26px}
.hero-tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:24px}
.hero-tags li{
  padding:6px 13px;border-radius:999px;background:var(--c-surface);
  border:1px solid var(--c-line);font-size:13.5px;color:var(--c-text-2);
}
.hero-media{position:relative}
.hero-media img{
  width:100%;aspect-ratio:4/3;border-radius:14px;
  border:1px solid var(--c-line);
  box-shadow:var(--sh-1);
}
.hero-badge{
  position:absolute;left:0;bottom:-18px;
  background:var(--c-surface);border:1px solid var(--c-line);border-radius:12px;
  padding:14px 18px;box-shadow:var(--sh-2);display:flex;gap:22px;
}
.hero-badge div b{display:block;font-family:var(--ff-num);font-size:24px;color:var(--c-primary);line-height:1.2}
.hero-badge div span{font-size:12.5px;color:var(--c-text-2)}
@media (max-width:639px){
  .hero-badge{position:static;margin-top:16px;justify-content:space-between}
  .hero-actions .btn{width:100%}
}

/* ---------- 现象快速定位 ---------- */
.tag-cloud{
  background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-card);
  padding:26px;box-shadow:var(--sh-1);
}
.tag-cloud__list{display:flex;flex-wrap:wrap;gap:10px}
.tag-cloud__list a{
  display:inline-flex;align-items:center;gap:8px;
  padding:9px 16px;border-radius:999px;background:var(--c-bg);
  border:1px solid var(--c-line);font-size:14.5px;color:var(--c-ink);font-weight:500;
}
.tag-cloud__list a i{color:var(--c-primary);font-size:12px}
.tag-cloud__list a:hover{background:var(--c-primary);color:#fff;border-color:var(--c-primary);transform:translateY(-2px)}
.tag-cloud__list a:hover i{color:var(--c-accent)}
.tag-cloud__note{margin-top:18px;font-size:14px;color:var(--c-text-2);line-height:1.8}

/* ---------- 横向行式排查清单 ---------- */
.check-list{
  position:relative;
  background:var(--c-surface);
  border:1px solid var(--c-line);
  border-radius:var(--r-card);
  overflow:hidden;
  box-shadow:var(--sh-1);
}
.check-list::before{
  content:"";position:absolute;left:21px;top:0;bottom:0;width:2px;
  background:var(--c-line);z-index:1;
}
.check-row{
  position:relative;
  display:grid;grid-template-columns:1fr;gap:20px;
  padding:26px 22px 26px 46px;
  border-bottom:1px solid var(--c-line);
  transition:background-color .18s;
}
.check-row:last-child{border-bottom:0}
.check-row:nth-child(odd){background:var(--c-bg)}
.check-row::before{
  content:"";position:absolute;left:16px;top:34px;width:12px;height:12px;
  border-radius:50%;background:var(--c-primary);
  border:3px solid var(--c-accent);z-index:2;box-sizing:content-box;
}
.check-row:hover{background:var(--c-primary-l)}
.check-row__thumb img{width:100%;aspect-ratio:16/9;border-radius:12px;border:1px solid var(--c-line)}
.check-row__no{
  font-family:var(--ff-num);font-size:13px;font-weight:700;letter-spacing:1px;
  color:var(--c-warm);display:block;margin-bottom:6px;
}
.check-row__body h3{margin-bottom:10px}
.check-row__body>p{font-size:15.5px;color:var(--c-text-2);line-height:1.85}
.check-row__points{margin:14px 0 0;display:grid;gap:8px}
.check-row__points li{
  position:relative;padding-left:20px;font-size:15px;line-height:1.8;color:var(--c-text);
}
.check-row__points li::before{
  content:"";position:absolute;left:0;top:11px;width:8px;height:2px;
  background:var(--c-primary);border-radius:2px;
}
.check-row__meta{display:flex;flex-wrap:wrap;gap:8px;margin-top:16px}
@media (min-width:768px){
  .check-row{
    grid-template-columns:200px 1fr;gap:28px;
    padding:30px 32px 30px 46px;align-items:start;
  }
  .check-row::before{top:38px}
}

/* ---------- 处理流程 ---------- */
.flow{
  background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-card);
  padding:30px 24px;box-shadow:var(--sh-1);
}
.flow-grid{display:grid;grid-template-columns:1fr;gap:22px}
@media (min-width:640px){.flow-grid{grid-template-columns:repeat(2,1fr);gap:24px}}
@media (min-width:1024px){.flow-grid{grid-template-columns:repeat(4,1fr);gap:26px}}
.flow-item{
  position:relative;padding:22px 20px;border-radius:12px;
  background:var(--c-bg);border:1px solid var(--c-line);
  transition:transform .18s,box-shadow .18s,border-color .18s;
}
.flow-item:hover{transform:translateY(-3px);box-shadow:var(--sh-2);border-color:var(--c-primary)}
.flow-item__no{
  display:inline-flex;align-items:center;justify-content:center;
  width:36px;height:36px;border-radius:10px;background:var(--c-primary);color:#fff;
  font-family:var(--ff-num);font-weight:700;font-size:15px;margin-bottom:14px;
}
.flow-item h3{font-size:18px;margin-bottom:8px}
.flow-item p{font-size:14.5px;line-height:1.8;color:var(--c-text-2)}

/* ---------- 数据带 ---------- */
.stats{
  background:var(--c-ink);border-top:3px solid var(--c-accent);
  padding:52px 0;
}
.stats-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:26px 18px}
@media (min-width:900px){.stats-grid{grid-template-columns:repeat(4,1fr);gap:26px}}
.stat b{
  display:block;font-family:var(--ff-num);font-size:clamp(26px,3.2vw,40px);
  line-height:1.15;color:var(--c-accent);font-weight:800;letter-spacing:-.5px;
}
.stat span{display:block;margin-top:8px;font-size:13.5px;line-height:1.7;color:rgba(255,255,255,.72)}
.stats-head{max-width:640px;margin-bottom:32px}
.stats-head h2{color:#fff}
.stats-head h2::before{background:var(--c-accent)}
.stats-head p{color:rgba(255,255,255,.7);font-size:15.5px}

/* ---------- FAQ ---------- */
.faq-wrap{max-width:900px}
.faq-accordion{border-top:1px solid var(--c-line);margin:0;padding:0;list-style:none;background:transparent}
.faq-accordion .accordion-item{
  border-bottom:1px solid var(--c-line);position:relative;background:transparent;
}
.faq-accordion .accordion-title{
  display:flex;align-items:center;justify-content:space-between;gap:18px;
  padding:20px 4px 20px 14px;margin:0;
  font-size:18px;font-weight:600;line-height:1.75;color:var(--c-ink);background:transparent;
  border:0;position:relative;
}
.faq-accordion .accordion-title::before{
  content:"";position:absolute;left:0;top:24px;bottom:24px;width:3px;
  background:transparent;border-radius:2px;transition:background-color .18s;
}
.faq-accordion .accordion-item.is-open .accordion-title::before{background:var(--c-accent)}
.faq-accordion .accordion-title::after{
  content:"+";flex:0 0 auto;font-family:var(--ff-num);font-size:24px;line-height:1;
  color:var(--c-primary);transition:transform .22s ease;
}
.faq-accordion .accordion-item.is-open .accordion-title::after{content:"−";transform:rotate(180deg)}
.faq-accordion .accordion-title:hover{color:var(--c-primary)}
.faq-accordion .accordion-content{
  display:block;max-height:0;overflow:hidden;
  transition:max-height .28s ease;
  padding:0;border:0;background:transparent;
}
.faq-accordion .accordion-item.is-open .accordion-content{max-height:640px}
.accordion-inner{
  margin:0 0 20px 14px;padding:16px 18px;
  background:var(--c-primary-l);border-left:3px solid var(--c-accent);border-radius:0 10px 10px 0;
  font-size:16px;line-height:1.9;color:var(--c-text);
}

/* ---------- 反馈表单 ---------- */
.feedback{
  background:var(--c-surface);border:1px solid var(--c-line);
  border-radius:var(--r-card);padding:30px 24px;box-shadow:var(--sh-1);
}
@media (min-width:768px){.feedback{padding:38px 34px}}
.feedback-grid{display:grid;grid-template-columns:1fr;gap:34px}
@media (min-width:1024px){.feedback-grid{grid-template-columns:1fr 1.05fr;gap:46px}}
.field{margin-bottom:18px}
.field label{display:block;font-size:14px;color:var(--c-text-2);margin-bottom:7px}
.field input,.field textarea,.field select{
  width:100%;height:46px;padding:0 14px;
  background:#fff;border:1px solid var(--c-line);border-radius:var(--r-btn);
  font-size:15px;color:var(--c-ink);transition:border-color .18s,box-shadow .18s;
}
.field textarea{height:auto;min-height:110px;padding:12px 14px;line-height:1.75;resize:vertical}
.field input::placeholder,.field textarea::placeholder{color:#A9A2B8}
.field input:focus,.field textarea:focus,.field select:focus{
  outline:none;border-color:var(--c-accent);box-shadow:0 0 0 3px rgba(200,241,53,.35);
}
.field-row{display:grid;grid-template-columns:1fr;gap:0 16px}
@media (min-width:640px){.field-row{grid-template-columns:1fr 1fr}}
.form-hint{font-size:13px;color:var(--c-text-2);line-height:1.75;margin-top:12px}
.feedback-side h3{margin-bottom:12px}
.feedback-side ul{display:grid;gap:12px;margin-top:16px}
.feedback-side li{
  position:relative;padding-left:24px;font-size:15px;line-height:1.8;color:var(--c-text);
}
.feedback-side li::before{
  content:"\f00c";font-family:"Font Awesome 6 Free";font-weight:900;
  position:absolute;left:0;top:1px;font-size:12px;color:var(--c-primary);
}

/* ---------- 其他分类入口 ---------- */
.entry-grid{display:grid;grid-template-columns:1fr;gap:24px}
@media (min-width:640px){.entry-grid{grid-template-columns:repeat(2,1fr)}}
@media (min-width:1024px){.entry-grid{grid-template-columns:repeat(3,1fr)}}
.entry-card{
  display:block;background:var(--c-surface);border:1px solid var(--c-line);
  border-radius:var(--r-card);overflow:hidden;box-shadow:var(--sh-1);
  transition:transform .18s,box-shadow .18s,border-color .18s;
}
.entry-card:hover{transform:translateY(-3px);box-shadow:var(--sh-2);border-color:var(--c-primary)}
.entry-card img{width:100%;aspect-ratio:16/9;border-radius:0}
.entry-card__body{padding:20px 20px 22px}
.entry-card__body h3{font-size:18px;margin-bottom:8px}
.entry-card__body p{font-size:14.5px;line-height:1.8;color:var(--c-text-2)}
.entry-card__more{
  display:inline-flex;align-items:center;gap:6px;margin-top:14px;
  font-size:14px;font-weight:600;color:var(--c-primary);
}
.entry-card:hover .entry-card__more i{transform:translateX(4px)}
.entry-card__more i{transition:transform .18s}

.pager-wrap{display:flex;flex-wrap:wrap;align-items:center;gap:14px;margin-top:38px}
.pager{display:flex;gap:8px;margin:0;padding:0;list-style:none}
.pager li a{
  display:inline-flex;align-items:center;justify-content:center;
  min-width:42px;height:42px;padding:0 14px;border-radius:999px;
  background:var(--c-surface);border:1px solid var(--c-line);
  font-family:var(--ff-num);font-size:14.5px;color:var(--c-text);
  transition:background-color .18s,color .18s,border-color .18s,transform .18s;
}
.pager li a:hover{background:var(--c-primary);color:#fff;border-color:var(--c-primary);transform:translateY(-2px)}
.pager li.current a{background:var(--c-accent);border-color:var(--c-accent);color:var(--c-ink);font-weight:700}
.pager li.disabled span{
  display:inline-flex;align-items:center;justify-content:center;
  min-width:42px;height:42px;padding:0 14px;border-radius:999px;
  border:1px dashed var(--c-line);color:#A9A2B8;font-size:14.5px;
}
.pager-note{font-size:13.5px;color:var(--c-text-2)}

/* ---------- 收尾 CTA ---------- */
.cta-band{
  background:var(--c-ink);border-top:3px solid var(--c-accent);
  padding:64px 0;
}
.cta-inner{
  display:grid;grid-template-columns:1fr;gap:26px;align-items:center;
}
@media (min-width:900px){.cta-inner{grid-template-columns:1.4fr .6fr;gap:40px}}
.cta-inner h2{color:#fff;font-size:clamp(24px,2.6vw,32px)}
.cta-inner p{margin-top:12px;color:rgba(255,255,255,.72);font-size:16px;line-height:1.85}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px}
@media (min-width:900px){.cta-actions{justify-content:flex-end}}
@media (max-width:639px){.cta-actions .btn{width:100%}}

/* ---------- 页脚 ---------- */
.site-footer{
  background:var(--c-ink);color:rgba(255,255,255,.78);
  padding:56px 0 26px;border-top:3px solid var(--c-accent);
  font-size:14.5px;line-height:1.85;
}
.footer-grid{display:grid;grid-template-columns:1fr;gap:34px}
@media (min-width:768px){.footer-grid{grid-template-columns:1.4fr 1fr 1fr;gap:30px}}
@media (min-width:1024px){.footer-grid{grid-template-columns:1.6fr 1fr 1fr 1.1fr;gap:32px}}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:14px}
.footer-brand .mark{
  width:34px;height:34px;border-radius:10px;background:var(--c-accent);
  display:inline-flex;align-items:center;justify-content:center;color:var(--c-ink);font-size:16px;
}
.footer-brand b{color:#fff;font-size:18px;font-weight:800}
.site-footer h4{
  color:#fff;font-size:15px;font-weight:700;margin-bottom:14px;
  padding-bottom:10px;border-bottom:1px solid rgba(255,255,255,.14);
}
.footer-list li{margin-bottom:9px}
.footer-list a,.footer-contact li{color:rgba(255,255,255,.78);font-size:14.5px}
.footer-list a:hover{color:#fff;border-bottom:2px solid var(--c-accent);padding-bottom:2px}
.footer-contact li{margin-bottom:9px;word-break:break-all}
.footer-bottom{
  margin-top:40px;padding-top:20px;border-top:1px solid rgba(255,255,255,.16);
  display:flex;flex-wrap:wrap;gap:10px;justify-content:space-between;
  font-size:13.5px;color:rgba(255,255,255,.58);
}
.footer-bottom p{margin:0}
@media (max-width:767px){
  .footer-bottom{flex-direction:column;gap:6px}
}

/* roulang page: category4 */
:root{
  --c-primary:#4B2EA3;
  --c-primary-d:#3A2280;
  --c-primary-l:#EDE8FB;
  --c-accent:#C8F135;
  --c-warm:#FF6A3D;
  --c-bg:#F6F3EC;
  --c-surface:#FFFFFF;
  --c-line:#E3DDD0;
  --c-ink:#241E3A;
  --c-text:#3C3555;
  --c-text-2:#6B6480;
  --r-card:14px;
  --r-btn:10px;
  --r-img:12px;
  --r-badge:999px;
  --sh-1:0 1px 0 var(--c-line),0 10px 24px -20px rgba(36,30,58,.55);
  --sh-2:0 1px 0 var(--c-line),0 18px 32px -20px rgba(36,30,58,.6);
  --font-cn:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC",sans-serif;
  --font-num:"Inter","HarmonyOS Sans",system-ui,sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  background-color:var(--c-bg);
  color:var(--c-text);
  font-family:var(--font-cn);
  font-size:17px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4,h5,p,figure,ul,ol,dl{margin:0;padding:0}
ul,ol{list-style:none}
img{display:block;max-width:100%;height:auto;border-radius:var(--r-img);object-fit:cover}
a{color:var(--c-primary);text-decoration:none;transition:color .18s,background-color .18s,border-color .18s,box-shadow .18s,transform .18s}
a:focus-visible,button:focus-visible,summary:focus-visible,input:focus-visible,textarea:focus-visible{outline:2px solid var(--c-accent);outline-offset:2px;border-radius:6px}
button{font:inherit;cursor:pointer;border:0;background:none;color:inherit}
strong,b{font-weight:700;color:var(--c-ink)}
.container{width:100%;max-width:1200px;margin:0 auto;padding-left:20px;padding-right:20px}
@media screen and (min-width:1024px){.container{padding-left:32px;padding-right:32px}}
.section{padding-top:56px;padding-bottom:56px}
@media screen and (min-width:768px){.section{padding-top:72px;padding-bottom:72px}}
@media screen and (min-width:1024px){.section{padding-top:96px;padding-bottom:96px}}
.section--tight{padding-top:40px;padding-bottom:40px}
@media screen and (min-width:1024px){.section--tight{padding-top:56px;padding-bottom:56px}}

/* ---------- 导航 ---------- */
.site-header{
  background:var(--c-primary);
  border-bottom:2px solid var(--c-accent);
  position:sticky;
  top:0;
  z-index:90;
}
.nav-wrap{display:flex;align-items:center;gap:20px;min-height:68px}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto}
.brand__mark{
  width:36px;height:36px;border-radius:10px;background:var(--c-accent);color:var(--c-ink);
  display:flex;align-items:center;justify-content:center;font-size:16px;flex:0 0 36px;
}
.brand__text{color:#fff;font-weight:800;font-size:20px;letter-spacing:-.3px;white-space:nowrap}
.main-nav{margin-left:auto}
.main-nav .menu{display:flex;align-items:center;gap:4px;flex-wrap:wrap}
.main-nav .menu>li{position:relative}
.main-nav .menu>li>a{
  display:block;position:relative;padding:10px 12px;color:rgba(255,255,255,.92);
  font-size:15px;font-weight:600;line-height:1.4;white-space:nowrap;
}
.main-nav .menu>li>a::after{
  content:"";position:absolute;left:12px;right:12px;bottom:2px;height:3px;background:var(--c-accent);
  transform:scaleX(0);transform-origin:left center;transition:transform .18s ease;border-radius:2px;
}
.main-nav .menu>li>a:hover,.main-nav .menu>li>a:focus-visible{color:#fff}
.main-nav .menu>li>a:hover::after,.main-nav .menu>li>a:focus-visible::after{transform:scaleX(1)}
.main-nav .menu>li>a.is-active{color:#fff}
.main-nav .menu>li>a.is-active::after{transform:scaleX(1)}
.nav-actions{display:flex;align-items:center;gap:10px;flex:0 0 auto}
.icon-btn{
  width:38px;height:38px;border-radius:10px;border:1px solid rgba(255,255,255,.4);
  color:#fff;display:flex;align-items:center;justify-content:center;font-size:15px;
  transition:background-color .18s,border-color .18s,color .18s,transform .18s;
}
.icon-btn:hover{background:rgba(255,255,255,.14);border-color:var(--c-accent);color:var(--c-accent);transform:translateY(-1px)}
.hamburger{
  display:none;width:38px;height:38px;border-radius:10px;border:1px solid rgba(255,255,255,.4);
  color:#fff;align-items:center;justify-content:center;
}
.hamburger:hover{border-color:var(--c-accent);color:var(--c-accent)}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:13px 22px;border-radius:var(--r-btn);font-size:16px;font-weight:600;line-height:1.4;
  border:1px solid transparent;transition:background-color .18s,color .18s,border-color .18s,box-shadow .18s,transform .18s;
}
.btn--sm{padding:9px 16px;font-size:14px;border-radius:9px}
.btn--primary{background:var(--c-primary);color:#fff;border-color:var(--c-primary)}
.btn--primary:hover{background:var(--c-primary-d);border-color:var(--c-primary-d);color:#fff;transform:translateY(-2px);box-shadow:0 12px 24px -16px rgba(36,30,58,.9)}
.btn--accent{background:var(--c-accent);color:var(--c-ink);border-color:var(--c-accent)}
.btn--accent:hover{background:#d7fa57;color:var(--c-ink);transform:translateY(-2px);box-shadow:0 12px 24px -16px rgba(36,30,58,.55)}
.btn--ghost{background:transparent;color:var(--c-ink);border-color:var(--c-line)}
.btn--ghost:hover{border-color:var(--c-primary);color:var(--c-primary);transform:translateY(-2px)}
.btn--light{background:#fff;color:var(--c-ink);border-color:#fff}
.btn--light:hover{background:var(--c-accent);border-color:var(--c-accent);color:var(--c-ink);transform:translateY(-2px)}
.btn:active{transform:translateY(0)}

/* ---------- Mega menu ---------- */
.mega{
  display:none;position:absolute;top:calc(100% + 10px);left:0;width:760px;background:var(--c-surface);
  border:1px solid var(--c-line);border-top:3px solid var(--c-accent);border-radius:var(--r-card);
  box-shadow:var(--sh-2);padding:26px;z-index:95;
}
.mega::before{content:"";position:absolute;top:-13px;left:0;right:0;height:13px}
.has-mega:hover .mega,.has-mega:focus-within .mega,.has-mega.is-open .mega{display:grid;grid-template-columns:1fr 1fr;gap:26px}
.mega__col h4{font-size:14px;letter-spacing:.6px;color:var(--c-text-2);font-weight:700;margin-bottom:14px}
.mega__list li+li{margin-top:6px}
.mega__list a{
  display:flex;justify-content:space-between;align-items:center;gap:12px;padding:9px 12px;border-radius:10px;
  color:var(--c-ink);font-size:15px;font-weight:600;border:1px solid transparent;
}
.mega__list a span{font-size:12px;font-weight:500;color:var(--c-text-2);font-family:var(--font-num)}
.mega__list a:hover{background:var(--c-primary-l);border-color:var(--c-line);color:var(--c-primary)}
.mega__news li{padding:9px 0;border-bottom:1px dashed var(--c-line)}
.mega__news a{color:var(--c-ink);font-size:14px;font-weight:600;display:block;line-height:1.6}
.mega__news a:hover{color:var(--c-primary)}
.mega__news time{display:block;font-size:12px;color:var(--c-warm);font-family:var(--font-num);margin-top:2px}
.mega__card{display:block;margin-top:14px;border:1px solid var(--c-line);border-radius:12px;overflow:hidden;background:var(--c-surface)}
.mega__card img{width:100%;height:110px;border-radius:0}
.mega__card b{display:block;padding:12px 14px;font-size:14px;color:var(--c-ink);line-height:1.6}
.mega__card:hover{border-color:var(--c-primary);box-shadow:var(--sh-1)}
.nav-mask{display:none;position:fixed;inset:0;background:rgba(36,30,58,.55);z-index:80}
.nav-mask.is-show{display:block}

/* ---------- 首屏 ---------- */
.cat-hero{padding-top:28px}
@media screen and (min-width:1024px){.cat-hero{padding-top:40px}}
.hero-frame{
  position:relative;min-height:460px;border-radius:var(--r-card);overflow:hidden;
  display:flex;align-items:center;border:1px solid var(--c-line);
}
.hero-frame__bg{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;border-radius:0}
.hero-frame::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(100deg,rgba(36,30,58,.86) 0%,rgba(36,30,58,.62) 46%,rgba(36,30,58,.28) 100%);
}
.hero-card{
  position:relative;z-index:2;background:var(--c-surface);border-radius:var(--r-card);
  padding:34px;max-width:610px;margin:36px 0 36px 36px;box-shadow:var(--sh-2);
}
.hero-card h1{font-size:clamp(30px,4.2vw,44px);line-height:1.25;font-weight:800;letter-spacing:-.5px;color:var(--c-ink);margin:16px 0 14px}
.hero-card>p{font-size:17px;line-height:1.85;color:var(--c-text)}
.badge{
  display:inline-flex;align-items:center;gap:6px;padding:5px 13px;border-radius:var(--r-badge);
  background:var(--c-primary-l);color:var(--c-primary);font-size:13px;font-weight:700;
  font-family:var(--font-num);letter-spacing:.4px;
}
.btn-row{display:flex;flex-wrap:wrap;gap:12px;margin-top:24px}
.hero-facts{display:flex;flex-wrap:wrap;gap:22px;margin-top:26px;padding-top:20px;border-top:1px solid var(--c-line)}
.hero-facts li{display:flex;align-items:baseline;gap:7px}
.hero-facts b{font-family:var(--font-num);font-size:22px;color:var(--c-primary);letter-spacing:-.5px}
.hero-facts span{font-size:13px;color:var(--c-text-2)}

/* ---------- 通用板块标题 ---------- */
.sec-head{max-width:760px;margin-bottom:34px}
.sec-head h2{
  display:flex;align-items:flex-start;gap:8px;font-size:clamp(24px,2.6vw,34px);line-height:1.35;
  font-weight:700;color:var(--c-ink);letter-spacing:-.3px;
}
.sec-head h2::before{content:"";flex:0 0 12px;width:12px;height:12px;border-radius:3px;background:var(--c-accent);margin-top:.5em}
.sec-head p{margin-top:12px;font-size:16px;color:var(--c-text-2);line-height:1.85}
.sec-head--center{margin-left:auto;margin-right:auto;text-align:left}

/* ---------- 杂志式图文交错 ---------- */
.mag-list{display:flex;flex-direction:column;gap:26px}
.mag-item{
  display:grid;grid-template-columns:1fr;background:var(--c-surface);border:1px solid var(--c-line);
  border-radius:var(--r-card);overflow:hidden;box-shadow:var(--sh-1);transition:box-shadow .2s,transform .2s;
}
.mag-item:hover{box-shadow:var(--sh-2);transform:translateY(-3px)}
@media screen and (min-width:768px){
  .mag-item{grid-template-columns:1fr 1fr;align-items:stretch}
  .mag-item--rev .mag-media{order:2}
  .mag-item--wide{grid-template-columns:1.25fr .75fr}
}
.mag-media{position:relative;min-height:230px}
.mag-media img{width:100%;height:100%;min-height:230px;border-radius:0}
.mag-body{padding:28px}
.mag-body h3{font-size:21px;line-height:1.45;font-weight:600;color:var(--c-ink);margin-bottom:10px}
.mag-body p{font-size:16px;color:var(--c-text)}
.mag-num{
  display:inline-block;font-family:var(--font-num);font-size:13px;font-weight:700;color:var(--c-primary);
  background:var(--c-primary-l);border-radius:var(--r-badge);padding:4px 12px;margin-bottom:14px;letter-spacing:.6px;
}
.mag-points{margin-top:16px;display:flex;flex-direction:column;gap:9px}
.mag-points li{position:relative;padding-left:20px;font-size:15.5px;color:var(--c-text);line-height:1.8}
.mag-points li::before{content:"";position:absolute;left:0;top:.72em;width:8px;height:8px;border-radius:3px;background:var(--c-accent)}
.mag-item--text{
  background:var(--c-primary-l);border-color:#DCD3F6;box-shadow:none;
}
.mag-item--text:hover{transform:none;box-shadow:none}
.mag-item--text .mag-body{padding:32px;max-width:820px}
.mag-item--outline{background:transparent;border:1px dashed var(--c-line);box-shadow:none;margin-left:0}
.mag-item--outline:hover{transform:none;box-shadow:none}
@media screen and (min-width:1024px){.mag-item--outline{width:78%;margin-left:11%}}

/* ---------- 准备清单 ---------- */
.prep{background:var(--c-primary-l);border-top:1px solid #DDD4F7;border-bottom:1px solid #DDD4F7}
.prep-grid{display:grid;gap:28px;grid-template-columns:1fr}
@media screen and (min-width:900px){.prep-grid{grid-template-columns:.95fr 1.05fr;gap:44px;align-items:center}}
.prep-media img{width:100%;height:340px;object-fit:cover;border-radius:var(--r-img);box-shadow:var(--sh-1)}
.prep-list{display:grid;gap:14px;margin-top:8px}
.prep-list li{
  display:flex;gap:14px;background:var(--c-surface);border:1px solid #DCD3F6;border-radius:12px;padding:18px 20px;
}
.prep-list i{
  flex:0 0 34px;width:34px;height:34px;border-radius:10px;background:var(--c-accent);color:var(--c-ink);
  display:flex;align-items:center;justify-content:center;font-size:14px;
}
.prep-list b{display:block;color:var(--c-ink);font-size:16px;margin-bottom:2px}
.prep-list span{font-size:15px;color:var(--c-text-2);line-height:1.75}

/* ---------- 深色时间线 ---------- */
.dark-band{background:var(--c-ink);border-top:3px solid var(--c-accent);color:rgba(255,255,255,.82)}
.dark-band .sec-head h2{color:#fff}
.dark-band .sec-head p{color:rgba(255,255,255,.7)}
.dark-band .sec-head h2::before{background:var(--c-accent)}
.step-lines{display:grid;gap:18px}
@media screen and (min-width:900px){.step-lines{grid-template-columns:repeat(3,1fr);gap:22px}}
.step-line{
  background:rgba(255,255,255,.06);border:1px solid #3A2C7A;border-radius:var(--r-card);padding:24px;
  transition:border-color .2s,transform .2s,background-color .2s;
}
.step-line:hover{border-color:var(--c-accent);background:rgba(255,255,255,.1);transform:translateY(-3px)}
.step-line em{
  display:inline-block;font-style:normal;font-family:var(--font-num);font-size:13px;font-weight:700;
  color:var(--c-ink);background:var(--c-accent);border-radius:var(--r-badge);padding:4px 12px;margin-bottom:14px;
}
.step-line h3{color:#fff;font-size:19px;font-weight:600;line-height:1.5;margin-bottom:8px}
.step-line p{font-size:15px;color:rgba(255,255,255,.78);line-height:1.85}

/* ---------- 场景卡 ---------- */
.scene-grid{display:grid;gap:24px;grid-template-columns:1fr}
@media screen and (min-width:768px){.scene-grid{grid-template-columns:1fr 1fr;gap:26px}}
.scene-card{
  background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-card);overflow:hidden;
  box-shadow:var(--sh-1);display:flex;flex-direction:column;transition:box-shadow .2s,transform .2s;
}
.scene-card:hover{box-shadow:var(--sh-2);transform:translateY(-3px)}
.scene-card img{width:100%;height:210px;border-radius:0}
.scene-card__body{padding:24px}
.scene-card__body h3{font-size:19px;color:var(--c-ink);font-weight:600;line-height:1.5;margin-bottom:10px}
.scene-card__body p{font-size:15.5px;color:var(--c-text)}
.scene-card__tag{
  display:inline-block;font-size:12px;font-family:var(--font-num);font-weight:700;color:var(--c-warm);
  background:rgba(255,106,61,.1);border-radius:var(--r-badge);padding:3px 11px;margin-bottom:12px;
}
.scene-card--wide{grid-column:1/-1}
@media screen and (min-width:768px){
  .scene-card--wide{display:grid;grid-template-columns:.85fr 1.15fr;align-items:stretch}
  .scene-card--wide img{height:100%;min-height:240px}
  .scene-card--wide .scene-card__body{padding:30px}
}

/* ---------- FAQ ---------- */
.faq{background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-card);overflow:hidden;box-shadow:var(--sh-1)}
.faq details{border-bottom:1px solid var(--c-line);position:relative}
.faq details:last-child{border-bottom:0}
.faq summary{
  list-style:none;cursor:pointer;position:relative;padding:20px 52px 20px 20px;
  font-size:18px;font-weight:600;color:var(--c-ink);line-height:1.9;transition:background-color .18s,color .18s;
}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{
  content:"+";position:absolute;right:22px;top:50%;transform:translateY(-50%);
  font-size:22px;font-weight:600;color:var(--c-primary);transition:transform .2s;
}
.faq details[open] summary::after{content:"−";transform:translateY(-50%) rotate(180deg)}
.faq summary:hover{background:var(--c-primary-l);color:var(--c-primary)}
.faq details[open] summary::before{content:"";position:absolute;left:0;top:14px;bottom:14px;width:3px;background:var(--c-accent);border-radius:2px}
.faq-a{padding:2px 24px 22px 20px;background:var(--c-primary-l);font-size:16px;line-height:1.9;color:var(--c-text)}

/* ---------- 其他分类 ---------- */
.cat-grid{display:grid;gap:24px;grid-template-columns:1fr}
@media screen and (min-width:768px){.cat-grid{grid-template-columns:repeat(3,1fr)}}
.cat-card{
  display:flex;flex-direction:column;background:var(--c-surface);border:1px solid var(--c-line);
  border-radius:var(--r-card);overflow:hidden;box-shadow:var(--sh-1);transition:box-shadow .2s,transform .2s,border-color .2s;
}
.cat-card:hover{box-shadow:var(--sh-2);transform:translateY(-3px);border-color:var(--c-primary)}
.cat-card img{width:100%;height:170px;border-radius:0}
.cat-card__body{padding:20px 22px 24px;display:flex;flex-direction:column;gap:8px;flex:1}
.cat-card__body h3{font-size:18px;color:var(--c-ink);font-weight:600;line-height:1.5}
.cat-card__body p{font-size:14.5px;color:var(--c-text-2);line-height:1.8;flex:1}
.cat-card__more{font-size:14px;font-weight:700;color:var(--c-primary);display:inline-flex;align-items:center;gap:6px}
.cat-card:hover .cat-card__more{color:var(--c-primary-d)}
.pagination{display:flex;flex-wrap:wrap;gap:10px;margin:32px 0 0;padding:0;justify-content:center}
.pagination li{margin:0}
.pagination li a,.pagination li span{
  display:inline-flex;align-items:center;padding:9px 18px;border-radius:var(--r-badge);
  border:1px solid var(--c-line);background:var(--c-surface);color:var(--c-text);font-size:15px;line-height:1.5;
  transition:border-color .18s,color .18s,transform .18s,box-shadow .18s;
}
.pagination li a:hover{border-color:var(--c-primary);color:var(--c-primary);transform:translateY(-2px);box-shadow:var(--sh-1)}
.pagination li.current span{background:var(--c-primary);border-color:var(--c-primary);color:#fff}

/* ---------- CTA ---------- */
.cta-band{background:var(--c-ink);border-top:3px solid var(--c-accent);position:relative;overflow:hidden}
.cta-inner{display:grid;gap:26px;padding:56px 0}
@media screen and (min-width:900px){
  .cta-inner{grid-template-columns:1.25fr .75fr;align-items:center;padding:76px 0;gap:44px}
}
.cta-inner h2{font-size:clamp(24px,2.6vw,32px);line-height:1.35;font-weight:700;color:#fff;display:flex;gap:8px;align-items:flex-start}
.cta-inner h2::before{content:"";flex:0 0 12px;width:12px;height:12px;border-radius:3px;background:var(--c-accent);margin-top:.5em}
.cta-inner p{margin-top:12px;font-size:16px;color:rgba(255,255,255,.76);line-height:1.85}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px}
@media screen and (min-width:900px){.cta-actions{justify-content:flex-end}}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--c-ink);border-top:3px solid var(--c-accent);color:rgba(255,255,255,.78);padding-top:60px;margin-top:0}
.footer-grid{display:grid;gap:32px;grid-template-columns:1fr}
@media screen and (min-width:640px){.footer-grid{grid-template-columns:1fr 1fr}}
@media screen and (min-width:1024px){.footer-grid{grid-template-columns:1.4fr 1fr 1fr 1fr;gap:40px}}
.footer-brand{display:flex;align-items:center;gap:10px;color:#fff;font-size:19px;font-weight:800;margin-bottom:14px}
.footer-brand .mark{
  width:36px;height:36px;border-radius:10px;background:var(--c-accent);color:var(--c-ink);
  display:flex;align-items:center;justify-content:center;font-size:16px;
}
.site-footer p{font-size:15px;line-height:1.85}
.site-footer h4{color:#fff;font-size:15px;font-weight:700;letter-spacing:.5px;margin-bottom:16px}
.footer-list li+li{margin-top:10px}
.footer-list a{color:rgba(255,255,255,.78);font-size:15px}
.footer-list a:hover{color:#fff;text-decoration:underline;text-decoration-color:var(--c-accent);text-underline-offset:4px}
.footer-contact li{font-size:15px;color:rgba(255,255,255,.78);line-height:1.9}
.footer-contact li+li{margin-top:8px}
.footer-bottom{
  display:flex;flex-wrap:wrap;justify-content:space-between;gap:10px;
  border-top:1px solid rgba(255,255,255,.16);margin-top:48px;padding:22px 0 26px;
}
.footer-bottom p{font-size:13.5px;color:rgba(255,255,255,.6)}

/* ---------- 响应式 ---------- */
@media screen and (max-width:1023px){
  .nav-wrap{min-height:56px}
  .hamburger{display:flex}
  .main-nav{
    position:fixed;top:0;left:0;bottom:0;width:min(320px,84vw);background:var(--c-primary);
    padding:78px 18px 28px;transform:translateX(-104%);transition:transform .26s ease;
    overflow-y:auto;z-index:85;box-shadow:14px 0 40px -24px rgba(0,0,0,.8);
  }
  .main-nav.is-open{transform:none}
  .main-nav .menu{display:block}
  .main-nav .menu>li{border-bottom:1px solid rgba(255,255,255,.14)}
  .main-nav .menu>li>a{padding:14px 4px;font-size:16px;white-space:normal}
  .main-nav .menu>li>a::after{left:4px;right:auto;width:34px}
  .mega{
    position:static;width:auto;display:none;box-shadow:none;border:1px solid rgba(255,255,255,.2);
    border-top:2px solid var(--c-accent);background:rgba(255,255,255,.06);padding:16px;margin:0 0 12px;
  }
  .has-mega:hover .mega,.has-mega:focus-within .mega{display:none}
  .has-mega.is-open .mega{display:grid!important;grid-template-columns:1fr;gap:16px}
  .mega__col h4{color:rgba(255,255,255,.7)}
  .mega__list a{color:#fff}
  .mega__list a span{color:rgba(255,255,255,.6)}
  .mega__list a:hover{background:rgba(255,255,255,.12);border-color:transparent;color:var(--c-accent)}
  .mega__news a{color:#fff}
  .mega__card{background:rgba(255,255,255,.08);border-color:rgba(255,255,255,.2)}
  .mega__card b{color:#fff}
}
@media screen and (max-width:640px){
  body{font-size:16px}
  .nav-actions .btn--sm{display:none}
  .hero-card{margin:20px;padding:22px}
  .hero-frame{min-height:auto}
  .hero-facts{gap:16px}
  .btn-row .btn{width:100%}
  .btn{width:100%}
  .btn-row{flex-direction:column}
  .mag-body{padding:22px}
  .prep-media img{height:240px}
  .faq summary{padding:16px 46px 16px 16px;font-size:16.5px}
  .faq-a{padding:2px 18px 18px 16px}
  .cta-actions .btn{width:100%}
  .pagination{justify-content:flex-start}
}