/* roulang page: index */
:root{
  --brand:#5B2BE0;
  --brand-2:#C13BFF;
  --accent:#FF7A3D;
  --lime:#B8F53C;
  --bg:#F7F5FB;
  --card:#FFFFFF;
  --dark:#17112E;
  --dark-2:#241844;
  --ink:#171326;
  --muted:#5C5670;
  --line:#EDE9F7;
  --input-line:#E4DEF6;
  --grad:linear-gradient(135deg,#5B2BE0 0%,#C13BFF 52%,#FF7A3D 100%);
  --grad-soft:linear-gradient(135deg,rgba(91,43,224,.12),rgba(255,122,61,.12));
  --radius-card:24px;
  --radius-img:20px;
  --radius-pill:999px;
  --radius-input:14px;
  --radius-icon:16px;
  --shadow:0 8px 28px rgba(52,25,120,.10);
  --shadow-hover:0 14px 38px rgba(52,25,120,.16);
  --shadow-nav:0 6px 20px rgba(52,25,120,.08);
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:-apple-system,"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Source Han Sans SC",sans-serif;
  font-size:16px;
  line-height:1.8;
  color:var(--ink);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4,h5,h6{margin:0;font-weight:700;line-height:1.3;color:var(--ink)}
p{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
a{color:var(--brand);text-decoration:none;transition:color .25s ease}
a:hover{color:var(--brand-2)}
img{display:block;max-width:100%;height:auto}
button{font-family:inherit;font-size:inherit;border:0;background:none;cursor:pointer}
input,select,textarea{font-family:inherit;font-size:15px;color:var(--ink)}
section[id]{scroll-margin-top:92px}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px}
.num{font-variant-numeric:tabular-nums}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px}
.grid-x{display:flex;flex-wrap:wrap;margin-left:-14px;margin-right:-14px}
.grid-x>.cell{flex:0 0 auto;width:100%;max-width:100%;padding-left:14px;padding-right:14px}
.col-3{width:25%}
.col-4{width:33.3333%}
.col-6{width:50%}
.col-8{width:66.6667%}

/* ============ Header ============ */
.site-header{
  position:sticky;top:0;z-index:80;
  background:rgba(255,255,255,.86);
  backdrop-filter:blur(8px);
  -webkit-backdrop-filter:blur(8px);
  border-bottom:1px solid transparent;
  transition:background .3s ease,box-shadow .3s ease,border-color .3s ease;
}
.site-header.is-scrolled{
  background:rgba(255,255,255,.92);
  backdrop-filter:blur(12px);
  -webkit-backdrop-filter:blur(12px);
  border-bottom-color:var(--line);
  box-shadow:var(--shadow-nav);
}
.header-inner{display:flex;align-items:center;gap:24px;height:72px}
.logo{display:flex;align-items:center;gap:10px;color:var(--ink);flex:0 0 auto}
.logo:hover{color:var(--ink)}
.logo-mark{
  width:36px;height:36px;border-radius:12px;background:var(--grad);
  display:flex;align-items:center;justify-content:center;flex:0 0 36px;
}
.logo-mark svg{width:20px;height:20px;display:block}
.logo-text{font-size:19px;font-weight:800;letter-spacing:-.01em}
.logo-pulse{
  width:8px;height:8px;border-radius:50%;background:var(--grad);flex:0 0 8px;
  box-shadow:0 0 0 4px rgba(91,43,224,.12);
}
.nav-main{display:flex;align-items:center;gap:26px;margin-left:8px}
.nav-link{
  position:relative;font-size:15px;font-weight:500;color:var(--ink);
  padding:6px 0;white-space:nowrap;
}
.nav-link::after{
  content:"";position:absolute;left:0;right:0;bottom:-2px;height:3px;border-radius:3px;
  background:var(--grad);transform:scaleX(0);transform-origin:left center;
  transition:transform .3s ease;
}
.nav-link:hover::after,.nav-link.is-active::after{transform:scaleX(1)}
.nav-link:hover{color:var(--brand)}
.nav-link.is-active{color:var(--brand);font-weight:600}
.header-actions{display:flex;align-items:center;gap:14px;margin-left:auto}
.search-box{
  display:flex;align-items:center;gap:8px;width:220px;height:40px;
  padding:0 14px;border-radius:var(--radius-pill);background:#fff;
  border:1px solid var(--line);transition:border-color .25s ease,box-shadow .25s ease;
}
.search-box:focus-within{border-color:var(--brand);box-shadow:0 0 0 4px rgba(91,43,224,.14)}
.search-box svg{width:16px;height:16px;flex:0 0 16px;color:var(--muted)}
.search-box input{
  border:0;outline:0;background:transparent;width:100%;height:100%;
  font-size:14px;color:var(--ink);
}
.search-box input::placeholder{color:#9C95B4}
.btn-login{font-size:15px;font-weight:500;color:var(--ink);padding:6px 4px}
.btn-login:hover{color:var(--brand)}
.nav-toggle{
  display:none;width:44px;height:44px;border-radius:14px;border:1px solid var(--line);
  background:#fff;align-items:center;justify-content:center;
}
.nav-toggle svg{width:20px;height:20px;color:var(--ink)}

/* ============ Buttons ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:44px;padding:0 24px;border-radius:var(--radius-pill);
  font-size:15px;font-weight:600;line-height:1;white-space:nowrap;
  transition:transform .25s ease,box-shadow .25s ease,background .25s ease,color .25s ease,border-color .25s ease;
}
.btn-primary{
  color:#fff;background:var(--grad);background-size:160% 160%;background-position:0% 50%;
  box-shadow:0 8px 22px rgba(91,43,224,.28);
}
.btn-primary:hover{
  color:#fff;transform:translateY(-2px);background-position:100% 50%;
  box-shadow:0 14px 32px rgba(91,43,224,.34);
}
.btn-primary:active{transform:translateY(0)}
.btn-ghost{color:var(--ink);background:#fff;border:1px solid var(--line);box-shadow:var(--shadow)}
.btn-ghost:hover{color:var(--brand);background:#F1EBFF;border-color:#D9CDFB;transform:translateY(-2px)}
.btn-outline{color:var(--brand);background:transparent;border:1px solid #D9CDFB}
.btn-outline:hover{color:var(--brand);background:#F1EBFF;transform:translateY(-2px)}
.btn-sm{min-height:38px;padding:0 18px;font-size:14px}
.btn-lg{min-height:52px;padding:0 32px;font-size:16px}

/* ============ Hero ============ */
.hero{
  position:relative;overflow:hidden;color:#fff;
  background:var(--grad);
  min-height:560px;display:flex;align-items:center;
  padding:72px 0 88px;
}
.hero::before{
  content:"";position:absolute;inset:0;
  background-image:linear-gradient(rgba(255,255,255,.10) 1px,transparent 1px),
                   linear-gradient(90deg,rgba(255,255,255,.10) 1px,transparent 1px);
  background-size:56px 56px;opacity:.5;pointer-events:none;
}
.hero::after{
  content:"";position:absolute;right:-140px;top:-120px;width:520px;height:520px;
  border-radius:50%;background:radial-gradient(circle,rgba(184,245,60,.28),transparent 62%);
  pointer-events:none;
}
.hero .container{position:relative;z-index:2}
.hero-grid{align-items:center}
.hero-copy{width:54%}
.hero-visual{width:46%}
.badge-pill{
  display:inline-flex;align-items:center;gap:8px;padding:8px 16px;border-radius:var(--radius-pill);
  background:var(--lime);color:#1E1338;font-size:14px;font-weight:600;line-height:1.4;
}
.badge-pill i{width:6px;height:6px;border-radius:50%;background:#1E1338;display:block}
.hero h1{
  color:#fff;margin:22px 0 18px;
  font-size:clamp(2rem,4.4vw,3.4rem);line-height:1.15;font-weight:800;letter-spacing:-.01em;
}
.hero-sub{font-size:17px;line-height:1.85;color:rgba(255,255,255,.92);max-width:560px}
.hero-cta{display:flex;flex-wrap:wrap;gap:14px;margin-top:32px}
.hero .btn-ghost{background:rgba(255,255,255,.96);border-color:transparent}
.hero .btn-ghost:hover{background:#fff}
.trust-row{display:flex;flex-wrap:wrap;gap:12px 26px;margin-top:30px}
.trust-row li{display:flex;align-items:center;gap:8px;font-size:14px;color:rgba(255,255,255,.92)}
.trust-row svg{width:18px;height:18px;flex:0 0 18px}
.hero-visual{position:relative}
.hero-img{
  width:100%;aspect-ratio:4/3;object-fit:cover;border-radius:var(--radius-img);
  box-shadow:0 20px 44px rgba(23,17,46,.30);background:rgba(23,17,46,.35);
}
.float-card{
  position:absolute;left:-18px;bottom:-26px;background:#fff;color:var(--ink);
  border-radius:var(--radius-card);padding:18px 22px;box-shadow:var(--shadow-hover);
  display:flex;flex-direction:column;gap:2px;min-width:172px;
}
.float-card__label{font-size:13px;color:var(--muted)}
.float-card__num{
  font-size:32px;font-weight:800;line-height:1.1;font-variant-numeric:tabular-nums;
  background:var(--grad);-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent;
}
.float-card__unit{font-size:13px;color:var(--muted)}

/* ============ Sections ============ */
.sec{padding:96px 0}
.sec-tight{padding-top:0}
.sec-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:40px}
.sec-head h2{font-size:clamp(1.5rem,2.6vw,2.125rem);font-weight:700}
.sec-head h2::before{
  content:"";display:inline-block;width:4px;height:.95em;border-radius:3px;
  background:var(--grad);margin-right:12px;vertical-align:-.08em;
}
.sec-sub{margin-top:10px;font-size:15px;color:var(--muted);max-width:620px}
.link-arrow{display:inline-flex;align-items:center;gap:6px;font-size:15px;font-weight:600;color:var(--brand);white-space:nowrap}
.link-arrow svg{width:16px;height:16px;transition:transform .25s ease}
.link-arrow:hover svg{transform:translateX(4px)}

/* ============ Stat bar ============ */
.stat-bar{margin-top:-40px;position:relative;z-index:5}
.stat-bar__inner{
  background:#fff;border-radius:var(--radius-card);box-shadow:var(--shadow);
  padding:28px 24px;display:grid;grid-template-columns:repeat(4,1fr);gap:16px;
}
.badge-stat{text-align:center;padding:6px 8px;border-radius:20px}
.badge-stat__num{
  display:block;font-size:clamp(1.75rem,3vw,2.6rem);font-weight:800;line-height:1.1;
  font-variant-numeric:tabular-nums;
  background:var(--grad);-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent;
}
.badge-stat__label{display:block;margin-top:6px;font-size:14px;color:var(--muted)}

/* ============ Cards ============ */
.card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--radius-card);
  padding:30px;box-shadow:var(--shadow);height:100%;
  transition:transform .3s ease,box-shadow .3s ease,border-color .3s ease;
  display:flex;flex-direction:column;
}
.card:hover{transform:translateY(-6px);box-shadow:var(--shadow-hover);border-color:#D9CDFB}
.card h3{font-size:1.2rem;font-weight:600;margin-bottom:10px}
.card p{font-size:15px;color:var(--muted)}
.icon-block{
  width:56px;height:56px;border-radius:var(--radius-icon);background:var(--grad-soft);
  display:flex;align-items:center;justify-content:center;margin-bottom:20px;flex:0 0 56px;
}
.icon-block svg{width:26px;height:26px;color:var(--brand)}
.card-cover{
  border-radius:var(--radius-img);overflow:hidden;aspect-ratio:16/9;margin-bottom:22px;
  background:var(--grad);position:relative;
}
.card-cover img{width:100%;height:100%;object-fit:cover;transition:transform .3s ease}
.card:hover .card-cover img{transform:scale(1.04)}
.card .link-arrow{margin-top:auto;padding-top:20px}
.service-big{padding:0;overflow:hidden}
.service-big .card-cover{margin:0;border-radius:0;aspect-ratio:16/9}
.service-big .service-body{padding:30px}
.service-side{display:flex;flex-direction:column;gap:24px;height:100%}
.service-side .card{flex:1}

/* ============ Dark block ============ */
.sec-dark{
  background:linear-gradient(135deg,#17112E 0%,#241844 100%);
  color:#fff;border-radius:40px;margin:0 24px;
}
.sec-dark .container{padding-top:84px;padding-bottom:84px}
.sec-dark h2{color:#fff}
.sec-dark .sec-sub{color:rgba(255,255,255,.72)}
.adv-grid{display:flex;flex-wrap:wrap;gap:48px;align-items:center}
.adv-left{width:52%}
.adv-right{width:calc(48% - 48px)}
.check-list li{
  display:flex;gap:12px;align-items:flex-start;padding:14px 0;
  font-size:15.5px;color:rgba(255,255,255,.88);border-bottom:1px solid rgba(255,255,255,.10);
}
.check-list li:last-child{border-bottom:0}
.check-list svg{width:20px;height:20px;flex:0 0 20px;color:var(--lime);margin-top:5px}
.badge-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:16px}
.badge-outline{
  border:1px solid rgba(255,255,255,.22);border-radius:20px;padding:22px 18px;text-align:center;
  background:rgba(255,255,255,.04);
}
.badge-outline__num{
  display:block;font-size:clamp(1.5rem,2.4vw,2.1rem);font-weight:800;line-height:1.1;
  font-variant-numeric:tabular-nums;color:#fff;
}
.badge-outline__label{display:block;margin-top:6px;font-size:14px;color:rgba(255,255,255,.7)}

/* ============ Cases ============ */
.case-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:28px}
.card-case{position:relative;border-radius:var(--radius-card);overflow:hidden;background:#fff;box-shadow:var(--shadow);border:1px solid var(--line);transition:transform .3s ease,box-shadow .3s ease}
.card-case:hover{transform:translateY(-6px);box-shadow:var(--shadow-hover)}
.card-case__cover{aspect-ratio:16/9;overflow:hidden;background:var(--grad)}
.card-case__cover img{width:100%;height:100%;object-fit:cover;transition:transform .3s ease}
.card-case:hover .card-case__cover img{transform:scale(1.04)}
.card-case__body{padding:26px 28px 30px}
.card-case__body h3{font-size:1.125rem;font-weight:600;margin:14px 0 10px}
.card-case__body p{font-size:15px;color:var(--muted)}
.pill{
  display:inline-flex;align-items:center;height:26px;padding:0 12px;border-radius:var(--radius-pill);
  font-size:12.5px;font-weight:600;line-height:1;
}
.pill-lime{background:rgba(184,245,60,.28);color:#3A4C05}
.pill-violet{background:#F1EBFF;color:var(--brand)}

/* ============ Plans ============ */
.plan-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:28px;align-items:stretch}
.plan-card{
  position:relative;background:#fff;border:1px solid var(--line);border-radius:var(--radius-card);
  padding:34px 30px;box-shadow:var(--shadow);display:flex;flex-direction:column;
  transition:transform .3s ease,box-shadow .3s ease;
}
.plan-card:hover{transform:translateY(-6px);box-shadow:var(--shadow-hover)}
.plan-card--featured{border:2px solid transparent;background-image:linear-gradient(#fff,#fff),var(--grad);background-origin:border-box;background-clip:padding-box,border-box}
.plan-tag{
  position:absolute;top:-14px;right:24px;height:28px;padding:0 14px;border-radius:var(--radius-pill);
  background:var(--grad);color:#fff;font-size:13px;font-weight:600;display:inline-flex;align-items:center;
}
.plan-card h3{font-size:1.25rem;font-weight:700}
.plan-card__price{margin:14px 0 6px;font-size:14px;color:var(--muted)}
.plan-list{margin:20px 0 28px;display:flex;flex-direction:column;gap:12px}
.plan-list li{display:flex;gap:10px;align-items:flex-start;font-size:15px;color:var(--muted)}
.plan-list svg{width:18px;height:18px;flex:0 0 18px;color:var(--brand);margin-top:5px}
.plan-card .btn{width:100%}

/* ============ News (CMS) ============ */
.news-grid{display:flex;flex-wrap:wrap;margin-left:-14px;margin-right:-14px}
.news-cell{width:33.3333%;padding:0 14px 28px}
.card-news{
  display:flex;flex-direction:column;height:100%;background:#fff;border:1px solid var(--line);
  border-radius:var(--radius-card);overflow:hidden;box-shadow:var(--shadow);color:var(--ink);
  transition:transform .3s ease,box-shadow .3s ease,border-color .3s ease;
}
.card-news:hover{transform:translateY(-6px);box-shadow:var(--shadow-hover);border-color:#D9CDFB;color:var(--ink)}
.card-news__cover{aspect-ratio:16/9;overflow:hidden;background:var(--grad)}
.card-news__cover img{width:100%;height:100%;object-fit:cover;transition:transform .3s ease}
.card-news:hover .card-news__cover img{transform:scale(1.04)}
.card-news__body{padding:22px 24px 24px;display:flex;flex-direction:column;flex:1}
.card-news__title{
  font-size:1.0625rem;font-weight:600;margin:14px 0 10px;line-height:1.5;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.card-news__desc{
  font-size:14.5px;color:var(--muted);line-height:1.7;
  display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden;
}
.card-news__meta{
  margin-top:18px;padding-top:16px;border-top:1px solid var(--line);
  display:flex;align-items:center;gap:10px;font-size:13.5px;color:var(--muted);
  font-variant-numeric:tabular-nums;
}
.card-news__meta .dot{width:4px;height:4px;border-radius:50%;background:#C9C1E4;display:block}
.empty-state{
  min-height:240px;display:flex;flex-direction:column;align-items:center;justify-content:center;
  gap:16px;text-align:center;background:#fff;border:1px dashed var(--line);border-radius:var(--radius-card);
  padding:48px 24px;
}
.empty-state svg{width:48px;height:48px;color:#C9B8F7}
.empty-state p{color:var(--muted);font-size:15px}

/* ============ FAQ ============ */
.faq-wrap{background:#fff;border-radius:var(--radius-card);border:1px solid var(--line);box-shadow:var(--shadow);overflow:hidden}
.faq-item{position:relative;border-bottom:1px solid var(--line)}
.faq-item:last-child{border-bottom:0}
.faq-item::before{
  content:"";position:absolute;left:0;top:0;bottom:0;width:4px;background:var(--grad);
  transform:scaleY(0);transform-origin:top center;transition:transform .3s ease;
}
.faq-item.is-open::before{transform:scaleY(1)}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:20px;
  padding:24px 30px;text-align:left;font-size:16px;font-weight:600;color:var(--ink);
  transition:color .25s ease,background .25s ease;
}
.faq-q:hover{color:var(--brand);background:#FBF9FF}
.faq-icon{position:relative;width:24px;height:24px;flex:0 0 24px;transition:transform .3s ease}
.faq-icon i{position:absolute;left:50%;top:50%;background:var(--brand);border-radius:2px;transform:translate(-50%,-50%)}
.faq-icon i:first-child{width:14px;height:2px}
.faq-icon i:last-child{width:2px;height:14px;transition:transform .3s ease}
.faq-item.is-open .faq-icon{transform:rotate(180deg)}
.faq-item.is-open .faq-icon i:last-child{transform:translate(-50%,-50%) scaleY(0)}
.faq-a{padding:0 30px 26px;font-size:15px;color:var(--muted);max-width:880px}
.faq-h{margin:0}

/* ============ CTA band ============ */
.cta-band{
  background:var(--grad);border-radius:var(--radius-card);padding:56px 48px;color:#fff;
  display:flex;align-items:center;justify-content:space-between;gap:32px;flex-wrap:wrap;
  box-shadow:0 18px 44px rgba(91,43,224,.26);
}
.cta-band h2{color:#fff;font-size:clamp(1.4rem,2.4vw,1.9rem)}
.cta-band p{margin-top:10px;font-size:15.5px;color:rgba(255,255,255,.9);max-width:620px}
.cta-band .btn-ghost{background:#fff;border-color:transparent;color:var(--ink)}
.cta-band .btn-ghost:hover{background:#fff;color:var(--brand)}

/* ============ Contact ============ */
.contact-grid{display:grid;grid-template-columns:1.15fr .85fr;gap:32px;align-items:start}
.form-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius-card);padding:34px;box-shadow:var(--shadow)}
.field{margin-bottom:20px}
.field label{display:block;font-size:14px;font-weight:600;margin-bottom:8px}
.field input,.field select,.field textarea{
  width:100%;height:48px;padding:0 16px;border-radius:var(--radius-input);
  border:1px solid var(--input-line);background:#fff;outline:0;
  transition:border-color .25s ease,box-shadow .25s ease;
}
.field textarea{height:132px;padding:12px 16px;resize:vertical;line-height:1.7}
.field select{appearance:none;-webkit-appearance:none;
  background-image:url("data:image/svg+xml;charset=utf8,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16' fill='none' stroke='%235C5670' stroke-width='1.8'%3E%3Cpath d='M4 6l4 4 4-4'/%3E%3C/svg%3E");
  background-repeat:no-repeat;background-position:right 16px center;background-size:16px;padding-right:42px;
}
.field input:focus,.field select:focus,.field textarea:focus{border-color:var(--brand);box-shadow:0 0 0 4px rgba(91,43,224,.14)}
.field.is-error input,.field.is-error textarea{border-color:#E5484D}
.field-error{display:none;margin-top:8px;font-size:14px;color:#E5484D}
.field.is-error .field-error{display:block}
.form-note{font-size:13.5px;color:var(--muted);margin-top:14px}
.form-ok{margin-top:16px;font-size:14px;color:var(--brand);font-weight:600}
.info-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius-card);padding:30px;box-shadow:var(--shadow)}
.info-list li{display:flex;gap:14px;padding:16px 0;border-bottom:1px solid var(--line)}
.info-list li:last-child{border-bottom:0}
.info-list svg{width:20px;height:20px;flex:0 0 20px;color:var(--brand);margin-top:5px}
.info-list strong{display:block;font-size:15px;font-weight:600}
.info-list span{font-size:14.5px;color:var(--muted)}
.map-place{
  margin-top:20px;height:170px;border-radius:var(--radius-img);
  background:var(--grad-soft);border:1px solid var(--line);
  display:flex;align-items:center;justify-content:center;
  font-size:14px;color:var(--muted);text-align:center;padding:0 20px;
}

/* ============ Footer ============ */
.site-footer{background:var(--dark);color:#fff;margin-top:96px;position:relative}
.site-footer::before{content:"";position:absolute;top:0;left:0;right:0;height:3px;background:var(--grad)}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:40px;padding:72px 0 48px}
.footer-brand .logo-text{color:#fff}
.footer-desc{margin-top:18px;font-size:14.5px;color:#CFC9E4;line-height:1.8;max-width:320px}
.social-row{display:flex;gap:12px;margin-top:22px}
.social-row a{
  width:40px;height:40px;border-radius:12px;background:rgba(255,255,255,.08);
  display:flex;align-items:center;justify-content:center;transition:background .25s ease,transform .25s ease;
}
.social-row a:hover{background:rgba(255,255,255,.18);transform:translateY(-2px)}
.social-row svg{width:18px;height:18px;color:#fff}
.footer-col h4{font-size:16px;font-weight:600;color:#fff;margin-bottom:20px}
.footer-col ul{display:flex;flex-direction:column;gap:12px}
.footer-col a,.footer-col span{font-size:14px;color:#CFC9E4;line-height:1.7}
.footer-col a:hover{color:#fff}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.10);padding:22px 0 32px;
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13.5px;color:#9C95B4;
}
.footer-bottom a{color:#9C95B4}
.footer-bottom a:hover{color:#fff}

/* ============ Drawer ============ */
.drawer-mask{
  position:fixed;inset:0;background:rgba(23,17,46,.45);opacity:0;visibility:hidden;
  transition:opacity .3s ease,visibility .3s ease;z-index:90;
}
.drawer-mask.is-open{opacity:1;visibility:visible}
.drawer{
  position:fixed;top:0;right:0;bottom:0;width:86vw;max-width:360px;background:#fff;
  z-index:95;transform:translateX(100%);transition:transform .32s ease;
  padding:24px 22px 32px;overflow-y:auto;
}
.drawer.is-open{transform:translateX(0)}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:26px}
.drawer-close{width:44px;height:44px;border-radius:14px;border:1px solid var(--line);display:flex;align-items:center;justify-content:center}
.drawer-close svg{width:18px;height:18px;color:var(--ink)}
.drawer-nav{display:flex;flex-direction:column;gap:4px;margin-bottom:24px}
.drawer-nav a{padding:14px 12px;border-radius:14px;font-size:16px;font-weight:500;color:var(--ink)}
.drawer-nav a:hover,.drawer-nav a.is-active{background:#F1EBFF;color:var(--brand)}
.drawer-search{width:100%;margin-bottom:18px}
.drawer-actions{display:flex;flex-direction:column;gap:12px}
.drawer-actions .btn{width:100%}

/* ============ To top ============ */
.to-top{
  position:fixed;right:24px;bottom:28px;width:48px;height:48px;border-radius:50%;
  background:#fff;border:2px solid transparent;
  background-image:linear-gradient(#fff,#fff),var(--grad);
  background-origin:border-box;background-clip:padding-box,border-box;
  display:flex;align-items:center;justify-content:center;
  box-shadow:var(--shadow);opacity:0;visibility:hidden;transform:translateY(10px);
  transition:opacity .3s ease,transform .3s ease,visibility .3s ease;z-index:70;
}
.to-top.is-visible{opacity:1;visibility:visible;transform:translateY(0)}
.to-top:hover{transform:translateY(-2px)}
.to-top svg{width:20px;height:20px;color:var(--brand)}

/* ============ Responsive ============ */
@media screen and (max-width:1024px){
  .container{padding:0 20px}
  .nav-main,.search-box,.btn-login{display:none}
  .nav-toggle{display:flex}
  .header-inner{gap:16px}
  .logo-text{font-size:17px}
  .hero{min-height:420px;padding:56px 0 72px;text-align:left}
  .hero-copy,.hero-visual{width:100%}
  .hero-visual{margin-top:40px}
  .float-card{left:auto;right:12px;bottom:-20px}
  .stat-bar{margin-top:-28px}
  .stat-bar__inner{grid-template-columns:repeat(2,1fr);gap:20px;padding:24px 18px}
  .sec{padding:64px 0}
  .sec-dark{margin:0 16px;border-radius:32px}
  .sec-dark .container{padding-top:60px;padding-bottom:60px}
  .adv-left,.adv-right{width:100%}
  .adv-grid{gap:32px}
  .col-3,.col-4,.col-6,.col-8{width:100%}
  .service-side{flex-direction:row;gap:20px}
  .case-grid{grid-template-columns:1fr}
  .plan-grid{grid-template-columns:1fr}
  .news-cell{width:50%}
  .contact-grid{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;padding:56px 0 36px}
  .site-footer{margin-top:64px}
  .cta-band{padding:44px 32px}
}
@media screen and (max-width:640px){
  .sec{padding:52px 0}
  .sec-head{flex-direction:column;align-items:flex-start;gap:14px;margin-bottom:28px}
  .hero{padding:48px 0 60px}
  .hero h1{margin-top:18px}
  .hero-cta{gap:12px}
  .hero-cta .btn{width:100%}
  .trust-row{gap:10px 18px}
  .stat-bar__inner{grid-template-columns:repeat(2,1fr)}
  .card,.form-card,.info-card,.plan-card{padding:22px}
  .faq-q{padding:20px 20px;font-size:15.5px}
  .faq-a{padding:0 20px 22px}
  .news-cell{width:100%}
  .card-news__body{padding:20px}
  .service-side{flex-direction:column}
  .cta-band{padding:36px 24px;border-radius:20px}
  .footer-grid{grid-template-columns:1fr}
  .footer-bottom{flex-direction:column;align-items:flex-start;gap:8px}
  .to-top{right:16px;bottom:18px}
  .sec-dark{margin:0 12px;border-radius:24px}
  .badge-grid{gap:12px}
}

/* roulang page: article */
:root{
  --primary:#5B2BE0;
  --primary-2:#C13BFF;
  --accent:#FF7A3D;
  --lime:#B8F53C;
  --bg:#F7F5FB;
  --card:#FFFFFF;
  --dark:#17112E;
  --dark-2:#241844;
  --ink:#171326;
  --ink-2:#5C5670;
  --line:#EDE9F7;
  --line-2:#E4DEF6;
  --grad:linear-gradient(135deg,#5B2BE0 0%,#C13BFF 52%,#FF7A3D 100%);
  --r-card:24px;
  --r-img:20px;
  --r-pill:999px;
  --r-input:14px;
  --r-icon:16px;
  --sh-1:0 8px 28px rgba(52,25,120,.10);
  --sh-2:0 14px 38px rgba(52,25,120,.16);
  --sp-1:8px; --sp-2:16px; --sp-3:24px; --sp-4:32px; --sp-5:48px; --sp-6:64px; --sp-7:96px;
}

*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:-apple-system,"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Source Han Sans SC",sans-serif;
  font-size:16px;
  line-height:1.8;
  color:var(--ink);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border-style:none;}
a{color:inherit;text-decoration:none;}
ul,ol{margin:0;padding:0;list-style:none;}
button,input,select,textarea{font:inherit;color:inherit;}
h1,h2,h3,h4,p{margin:0;}
table{border-collapse:collapse;}

.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px;}

a:focus-visible,button:focus-visible,input:focus-visible,select:focus-visible,textarea:focus-visible{
  outline:2px solid var(--primary);outline-offset:2px;border-radius:6px;
}

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:80;
  background:rgba(247,245,251,.88);
  backdrop-filter:blur(10px);
  border-bottom:1px solid transparent;
  transition:background .3s ease,box-shadow .3s ease,border-color .3s ease;
}
.site-header.is-scrolled{
  background:rgba(255,255,255,.92);
  backdrop-filter:blur(12px);
  border-bottom-color:var(--line);
  box-shadow:0 6px 20px rgba(52,25,120,.08);
}
.header-inner{display:flex;align-items:center;gap:20px;height:72px;}

.logo{display:flex;align-items:center;gap:10px;flex-shrink:0;}
.logo-mark{
  width:34px;height:34px;border-radius:11px;background:var(--grad);
  display:grid;place-items:center;box-shadow:0 6px 16px rgba(91,43,224,.28);
}
.logo-mark svg{width:20px;height:20px;}
.logo-text{font-size:17px;font-weight:800;letter-spacing:-.01em;white-space:nowrap;}
.logo-dot{width:8px;height:8px;border-radius:50%;background:var(--grad);margin-left:2px;}

.nav-main{display:flex;align-items:center;gap:4px;margin-left:6px;}
.nav-link{
  position:relative;padding:10px 12px;font-size:15px;color:var(--ink-2);
  border-radius:var(--r-pill);transition:color .22s ease,background .22s ease;white-space:nowrap;
}
.nav-link::after{
  content:'';position:absolute;left:12px;right:12px;bottom:2px;height:3px;border-radius:3px;
  background:var(--grad);transform:scaleX(0);transform-origin:left center;
  transition:transform .3s ease;
}
.nav-link:hover{color:var(--primary);background:#F3EDFF;}
.nav-link.is-active{color:var(--primary);font-weight:600;}
.nav-link.is-active::after{transform:scaleX(1);}

.header-actions{margin-left:auto;display:flex;align-items:center;gap:12px;}
.nav-search{position:relative;display:flex;align-items:center;width:220px;}
.nav-search svg{position:absolute;left:13px;width:16px;height:16px;color:var(--ink-2);pointer-events:none;}
.nav-search input{
  width:100%;height:40px;border-radius:var(--r-pill);border:1px solid var(--line);
  background:#fff;padding:0 14px 0 38px;font-size:14px;transition:border-color .2s,box-shadow .2s;
}
.nav-search input::placeholder{color:#9A93B2;}
.nav-search input:focus{outline:none;border-color:var(--primary);box-shadow:0 0 0 4px rgba(91,43,224,.12);}

.btn-primary{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:42px;padding:0 22px;border-radius:var(--r-pill);border:none;cursor:pointer;
  background:var(--grad);background-size:180% 180%;background-position:0 0;
  color:#fff;font-size:15px;font-weight:600;white-space:nowrap;
  transition:transform .3s ease,box-shadow .3s ease,background-position .4s ease;
}
.btn-primary:hover{transform:translateY(-2px);background-position:100% 0;box-shadow:0 12px 28px rgba(91,43,224,.30);color:#fff;}
.btn-primary:active{transform:translateY(0);}

.btn-ghost{
  display:inline-flex;align-items:center;justify-content:center;
  height:42px;padding:0 18px;border-radius:var(--r-pill);
  border:1px solid var(--line-2);background:#fff;color:var(--ink);
  font-size:15px;font-weight:500;cursor:pointer;transition:background .2s,border-color .2s,color .2s;
}
.btn-ghost:hover{background:#F1EBFF;border-color:#D9CDFB;color:var(--primary);}

.nav-toggle{
  display:none;width:44px;height:44px;border-radius:14px;border:1px solid var(--line-2);
  background:#fff;cursor:pointer;place-items:center;
}
.nav-toggle span{display:block;width:18px;height:2px;border-radius:2px;background:var(--ink);margin:3px auto;}

/* ---------- drawer ---------- */
.drawer-mask{
  position:fixed;inset:0;background:rgba(23,17,46,.45);opacity:0;visibility:hidden;
  transition:opacity .3s ease,visibility .3s ease;z-index:90;
}
.drawer-mask.is-open{opacity:1;visibility:visible;}
.drawer{
  position:fixed;top:0;right:0;height:100%;width:86vw;max-width:360px;z-index:100;
  background:#fff;box-shadow:-10px 0 40px rgba(23,17,46,.18);
  transform:translateX(105%);transition:transform .34s cubic-bezier(.4,0,.2,1);
  display:flex;flex-direction:column;padding:20px;overflow-y:auto;
}
.drawer.is-open{transform:translateX(0);}
.drawer-head{display:flex;align-items:center;justify-content:space-between;gap:12px;padding-bottom:16px;border-bottom:1px solid var(--line);}
.drawer-close{
  width:40px;height:40px;border-radius:12px;border:1px solid var(--line-2);background:#fff;
  font-size:20px;line-height:1;cursor:pointer;color:var(--ink-2);
}
.drawer-close:hover{background:#F1EBFF;color:var(--primary);}
.drawer-nav{display:flex;flex-direction:column;padding:12px 0;}
.drawer-nav a{
  padding:14px 12px;border-radius:14px;font-size:16px;color:var(--ink);transition:background .2s,color .2s;
}
.drawer-nav a:hover,.drawer-nav a.is-active{background:#F3EDFF;color:var(--primary);font-weight:600;}
.drawer-search{width:100%;margin:8px 0 18px;}
.drawer-search input{height:46px;}
.drawer-actions{display:flex;flex-direction:column;gap:12px;margin-top:auto;padding-top:16px;}
.drawer-actions .btn-primary,.drawer-actions .btn-ghost{width:100%;height:48px;}

/* ---------- page head ---------- */
.page-head{padding:34px 0 10px;}
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:14px;color:var(--ink-2);}
.breadcrumb a{color:var(--ink-2);transition:color .2s;}
.breadcrumb a:hover{color:var(--primary);}
.breadcrumb .sep{color:#C6BFDD;}
.breadcrumb .current{
  color:var(--primary);font-weight:600;max-width:520px;
  overflow:hidden;text-overflow:ellipsis;white-space:nowrap;
}

.article-head{padding:22px 0 30px;}
.article-head .kicker{
  display:inline-flex;align-items:center;gap:8px;height:30px;padding:0 14px;border-radius:var(--r-pill);
  background:#F1EBFF;color:var(--primary);font-size:13px;font-weight:600;margin-bottom:16px;
}
.article-head .kicker i{width:6px;height:6px;border-radius:50%;background:var(--grad);display:block;}
.article-title{
  max-width:820px;font-size:clamp(1.75rem,3.6vw,2.7rem);line-height:1.18;font-weight:800;
  letter-spacing:-.01em;margin-bottom:18px;
}
.meta-row{display:flex;flex-wrap:wrap;align-items:center;gap:10px;font-size:14px;color:var(--ink-2);}
.meta-row .dot{width:4px;height:4px;border-radius:50%;background:#CFC9E4;}
.meta-row .pill{
  display:inline-flex;align-items:center;height:26px;padding:0 12px;border-radius:var(--r-pill);
  background:rgba(184,245,60,.42);color:#33430A;font-size:13px;font-weight:600;
}

/* ---------- layout ---------- */
.article-layout{
  display:grid;grid-template-columns:minmax(0,820px) 260px;gap:48px;align-items:start;
  padding:8px 0 80px;
}
.article-main{min-width:0;}
.article-card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);
  padding:40px 44px;box-shadow:var(--sh-1);
}

.article-body{font-size:16px;line-height:1.85;color:var(--ink);word-wrap:break-word;}
.article-body p{margin:0 0 22px;}
.article-body h2{
  position:relative;font-size:clamp(1.3rem,2.2vw,1.7rem);font-weight:700;line-height:1.35;
  margin:40px 0 20px;padding-left:16px;
}
.article-body h2::before{
  content:'';position:absolute;left:0;top:.2em;bottom:.2em;width:4px;border-radius:4px;background:var(--grad);
}
.article-body h3{font-size:1.125rem;font-weight:600;margin:30px 0 14px;}
.article-body ul,.article-body ol{margin:0 0 22px;padding-left:22px;}
.article-body ul{list-style:disc;}
.article-body ol{list-style:decimal;}
.article-body li{line-height:1.75;margin-bottom:8px;}
.article-body blockquote{
  background:#F3EDFF;border-left:4px solid var(--primary);border-radius:0 16px 16px 0;
  padding:18px 22px;margin:26px 0;color:var(--ink-2);
}
.article-body blockquote p:last-child{margin-bottom:0;}
.article-body img{border-radius:var(--r-img);margin:26px auto;height:auto;}
.article-body figure{margin:26px 0;}
.article-body figcaption{font-size:13px;color:var(--ink-2);text-align:center;margin-top:10px;}
.article-body code{background:#F1EBFF;padding:2px 8px;border-radius:var(--r-pill);font-size:.92em;color:#43209E;}
.article-body pre{
  background:#17112E;color:#EDE9F7;border-radius:16px;padding:18px 20px;overflow-x:auto;
  font-size:14px;line-height:1.7;margin:24px 0;
}
.article-body pre code{background:none;color:inherit;padding:0;}
.article-body table{
  width:100%;background:#F7F5FB;border-radius:12px;overflow:hidden;
  border-collapse:separate;border-spacing:0;margin:24px 0;font-size:15px;
  display:block;overflow-x:auto;
}
.article-body th{background:#EFE9FC;font-weight:600;text-align:left;}
.article-body th,.article-body td{padding:12px 16px;border:none;}
.article-body a{color:var(--primary);border-bottom:1px solid rgba(91,43,224,.35);}
.article-body a:hover{border-bottom-color:var(--primary);}
.article-body hr{border:none;height:1px;background:var(--line);margin:34px 0;}

.tag-list{display:flex;flex-wrap:wrap;gap:10px;margin:36px 0 0;padding-top:26px;border-top:1px solid var(--line);}
.tag{
  display:inline-flex;align-items:center;height:30px;padding:0 14px;border-radius:var(--r-pill);
  background:#F1EBFF;color:var(--primary);font-size:13px;font-weight:500;
}
.tag.is-lime{background:rgba(184,245,60,.42);color:#33430A;}

/* ---------- side ---------- */
.article-side{position:sticky;top:92px;display:flex;flex-direction:column;gap:20px;}
.side-card{
  background:var(--card);border:1px solid var(--line);border-radius:20px;padding:20px;
  box-shadow:0 8px 28px rgba(52,25,120,.06);
}
.side-card h3{
  font-size:15px;font-weight:700;margin-bottom:14px;display:flex;align-items:center;gap:8px;
}
.side-card h3::before{
  content:'';width:4px;height:14px;border-radius:3px;background:var(--grad);display:block;
}
.toc-list a{
  display:block;padding:7px 10px;font-size:14px;color:var(--ink-2);
  border-left:2px solid var(--line);border-radius:0 8px 8px 0;
  overflow:hidden;text-overflow:ellipsis;white-space:nowrap;
  transition:color .2s,border-color .2s,background .2s;
}
.toc-list a:hover{color:var(--primary);border-left-color:var(--primary);background:#F7F3FF;}
.toc-empty{font-size:13px;color:#9A93B2;display:none;}
.side-rec{display:flex;flex-direction:column;gap:14px;}
.side-rec a{display:flex;gap:12px;align-items:flex-start;transition:transform .2s;}
.side-rec a:hover{transform:translateX(4px);}
.side-rec .thumb{
  width:72px;height:48px;border-radius:12px;overflow:hidden;flex-shrink:0;background:var(--grad);
}
.side-rec .thumb img{width:100%;height:100%;object-fit:cover;}
.side-rec .txt{font-size:13.5px;line-height:1.5;color:var(--ink-2);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.side-rec a:hover .txt{color:var(--primary);}

/* ---------- prev next ---------- */
.prevnext{display:grid;grid-template-columns:1fr 1fr;gap:18px;margin-top:32px;}
.pn-card{
  display:block;background:#fff;border:1px solid var(--line);border-radius:20px;
  padding:20px 22px;transition:transform .3s ease,border-color .3s ease,box-shadow .3s ease;
}
.pn-card:hover{transform:translateY(-4px);border-color:#D9CDFB;box-shadow:var(--sh-2);}
.pn-label{font-size:13px;color:var(--ink-2);display:block;margin-bottom:6px;}
.pn-title{
  font-size:15px;font-weight:600;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.pn-card.next{text-align:right;}

/* ---------- related ---------- */
.sec-pad{padding:72px 0;}
.sec-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:32px;flex-wrap:wrap;}
.sec-head h2{font-size:clamp(1.4rem,2.4vw,2rem);font-weight:700;line-height:1.3;}
.sec-head p{font-size:14px;color:var(--ink-2);margin-top:8px;}
.link-arrow{
  display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:600;color:var(--primary);
}
.link-arrow svg{width:14px;height:14px;transition:transform .25s ease;}
.link-arrow:hover svg{transform:translateX(4px);}

.rec-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:26px;}
.card-news{
  display:flex;flex-direction:column;background:#fff;border:1px solid var(--line);
  border-radius:var(--r-card);overflow:hidden;
  transition:transform .3s ease,border-color .3s ease,box-shadow .3s ease;
}
.card-news:hover{transform:translateY(-6px);border-color:#D9CDFB;box-shadow:var(--sh-2);}
.card-news .cover{position:relative;aspect-ratio:16/9;overflow:hidden;background:var(--grad);}
.card-news .cover img{width:100%;height:100%;object-fit:cover;transition:transform .3s ease;}
.card-news:hover .cover img{transform:scale(1.04);}
.card-news .cat{
  position:absolute;left:14px;top:14px;height:26px;padding:0 12px;border-radius:var(--r-pill);
  background:rgba(255,255,255,.92);color:var(--primary);font-size:12.5px;font-weight:600;
  display:inline-flex;align-items:center;
}
.card-news .body{padding:22px 24px 24px;display:flex;flex-direction:column;flex:1;}
.card-news h3{
  font-size:17px;font-weight:700;line-height:1.45;margin-bottom:10px;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.card-news .desc{
  font-size:14px;color:var(--ink-2);line-height:1.7;margin-bottom:18px;
  display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden;
}
.card-news .meta{
  margin-top:auto;display:flex;align-items:center;gap:10px;font-size:13px;color:#8B84A4;
}
.card-news .meta .dot{width:4px;height:4px;border-radius:50%;background:#D5CFE7;}

/* ---------- cta band ---------- */
.cta-band{
  position:relative;overflow:hidden;border-radius:var(--r-card);padding:48px;
  background:var(--grad);color:#fff;display:flex;align-items:center;justify-content:space-between;
  gap:32px;flex-wrap:wrap;
}
.cta-band::after{
  content:'';position:absolute;right:-60px;top:-60px;width:260px;height:260px;border-radius:50%;
  background:rgba(255,255,255,.14);
}
.cta-band h2{font-size:clamp(1.35rem,2.4vw,1.9rem);font-weight:800;line-height:1.35;position:relative;z-index:1;}
.cta-band p{font-size:15px;margin-top:10px;color:rgba(255,255,255,.88);position:relative;z-index:1;max-width:560px;}
.cta-actions{display:flex;gap:14px;flex-wrap:wrap;position:relative;z-index:1;}
.btn-light{
  display:inline-flex;align-items:center;justify-content:center;height:48px;padding:0 26px;
  border-radius:var(--r-pill);background:#fff;color:var(--primary);font-weight:700;font-size:15px;
  transition:transform .3s ease,box-shadow .3s ease;
}
.btn-light:hover{transform:translateY(-2px);box-shadow:0 14px 30px rgba(23,17,46,.24);}
.btn-line{
  display:inline-flex;align-items:center;justify-content:center;height:48px;padding:0 26px;
  border-radius:var(--r-pill);border:1px solid rgba(255,255,255,.7);color:#fff;font-weight:600;font-size:15px;
  transition:background .25s ease,transform .3s ease;
}
.btn-line:hover{background:rgba(255,255,255,.16);transform:translateY(-2px);color:#fff;}

.btn-outline{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;height:46px;padding:0 26px;
  border-radius:var(--r-pill);border:1px solid var(--line-2);background:#fff;color:var(--ink);
  font-size:15px;font-weight:600;transition:background .25s,border-color .25s,transform .25s,color .25s;
}
.btn-outline:hover{background:#F1EBFF;border-color:#D9CDFB;color:var(--primary);transform:translateY(-2px);}
.back-row{display:flex;justify-content:center;margin-top:36px;}

/* ---------- empty ---------- */
.empty-state{
  min-height:240px;display:flex;flex-direction:column;align-items:center;justify-content:center;
  gap:14px;text-align:center;padding:40px 20px;
}
.empty-state svg{width:48px;height:48px;color:#C3B4EF;}
.empty-state p{font-size:15px;color:var(--ink-2);}
.empty-state .btn-outline{margin-top:6px;}

/* ---------- back to top ---------- */
.back-top{
  position:fixed;right:24px;bottom:28px;width:48px;height:48px;border-radius:50%;
  border:2px solid transparent;background:linear-gradient(#fff,#fff) padding-box,var(--grad) border-box;
  display:grid;place-items:center;cursor:pointer;opacity:0;visibility:hidden;
  box-shadow:var(--sh-1);transition:opacity .3s,visibility .3s,transform .3s;z-index:70;
}
.back-top.is-show{opacity:1;visibility:visible;}
.back-top:hover{transform:translateY(-2px);}
.back-top svg{width:18px;height:18px;color:var(--primary);}

/* ---------- footer ---------- */
.site-footer{
  background:var(--dark);color:#CFC9E4;border-top:3px solid transparent;
  border-image:var(--grad) 1;padding:64px 0 0;margin-top:24px;
}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.1fr;gap:40px;padding-bottom:48px;}
.footer-brand .logo{margin-bottom:16px;}
.footer-brand .logo-text{color:#fff;}
.footer-desc{font-size:14px;line-height:1.8;color:#A79FC4;max-width:320px;}
.social-row{display:flex;gap:12px;margin-top:20px;}
.social-row a{
  width:40px;height:40px;border-radius:12px;background:rgba(255,255,255,.08);
  display:grid;place-items:center;color:#CFC9E4;transition:background .25s,color .25s,transform .25s;
}
.social-row a:hover{background:var(--primary);color:#fff;transform:translateY(-2px);}
.social-row svg{width:18px;height:18px;}
.footer-col h4{font-size:16px;font-weight:600;color:#fff;margin-bottom:18px;}
.footer-col ul li{margin-bottom:12px;}
.footer-col a{font-size:14px;color:#CFC9E4;transition:color .2s,padding-left .2s;}
.footer-col a:hover{color:#fff;padding-left:4px;}
.footer-contact li{font-size:14px;line-height:1.7;color:#CFC9E4;margin-bottom:12px;display:flex;gap:8px;}
.footer-contact li strong{color:#fff;font-weight:600;flex-shrink:0;}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.1);padding:20px 0 26px;
  display:flex;flex-wrap:wrap;gap:10px;justify-content:space-between;font-size:13px;color:#8F87AC;
}

/* ---------- responsive ---------- */
@media (max-width:1024px){
  .nav-main,.nav-search,.header-actions .btn-ghost{display:none;}
  .nav-toggle{display:grid;}
  .article-layout{grid-template-columns:1fr;gap:32px;padding-bottom:64px;}
  .article-side{position:static;}
  .article-card{padding:28px 26px;}
  .rec-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:20px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
  .sec-pad{padding:52px 0;}
  .cta-band{padding:34px 26px;}
}
@media (max-width:640px){
  .container{padding:0 20px;}
  .header-inner{height:64px;gap:12px;}
  .logo-text{font-size:15.5px;}
  .article-head{padding:16px 0 22px;}
  .article-title{font-size:clamp(1.55rem,7vw,2rem);}
  .article-card{padding:22px 20px;border-radius:20px;}
  .article-body{font-size:16px;line-height:1.8;}
  .article-body h2{margin:34px 0 16px;}
  .prevnext{grid-template-columns:1fr;}
  .pn-card.next{text-align:left;}
  .rec-grid{grid-template-columns:1fr;gap:16px;}
  .card-news .body{padding:18px 20px 20px;}
  .sec-pad{padding:48px 0;}
  .footer-grid{grid-template-columns:1fr;gap:28px;}
  .cta-band{padding:28px 22px;border-radius:20px;}
  .btn-light,.btn-line{width:100%;}
  .back-top{right:16px;bottom:18px;width:46px;height:46px;}
  .breadcrumb .current{max-width:200px;}
}

/* roulang page: category1 */
:root{
  --brand:#5B2BE0;
  --brand-2:#C13BFF;
  --accent:#FF7A3D;
  --lime:#B8F53C;
  --bg:#F7F5FB;
  --card:#FFFFFF;
  --dark:#17112E;
  --dark-2:#241844;
  --ink:#171326;
  --muted:#5C5670;
  --line:#EDE9F7;
  --line-2:#E4DEF6;
  --grad:linear-gradient(135deg,#5B2BE0 0%,#C13BFF 55%,#FF7A3D 100%);
  --r-card:24px;
  --r-img:20px;
  --r-btn:999px;
  --r-input:14px;
  --r-icon:16px;
  --sh:0 8px 28px rgba(52,25,120,.10);
  --sh-hover:0 14px 38px rgba(52,25,120,.16);
  --sh-nav:0 6px 20px rgba(52,25,120,.08);
  --s8:8px; --s16:16px; --s24:24px; --s32:32px; --s48:48px; --s64:64px; --s96:96px;
}

*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:-apple-system,"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Source Han Sans SC",sans-serif;
  font-size:16px;
  line-height:1.8;
  color:var(--ink);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4,h5,h6,p,ul,ol,figure{margin:0;padding:0;}
ul,ol{list-style:none;}
a{color:inherit;text-decoration:none;background:transparent;}
img{max-width:100%;display:block;}
button,input,select,textarea{font:inherit;color:inherit;}
button{background:none;border:0;cursor:pointer;}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;}
.num,.stat-num,.side-count,time{font-variant-numeric:tabular-nums;}

.container{
  width:100%;
  max-width:1200px;
  margin:0 auto;
  padding:0 24px;
}
.sec-pad{padding:88px 0;}
.sec-pad-sm{padding:64px 0;}
.sec-head{margin-bottom:36px;}
.sec-head h2{
  font-size:clamp(1.5rem,2.6vw,2.125rem);
  font-weight:700;
  line-height:1.3;
  letter-spacing:-.01em;
  padding-left:16px;
  position:relative;
}
.sec-head h2::before{
  content:'';
  position:absolute;
  left:0;top:.18em;bottom:.18em;
  width:4px;border-radius:4px;
  background:var(--grad);
}
.sec-head p{margin-top:12px;color:var(--muted);font-size:15px;max-width:760px;}
.sec-head-row{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;flex-wrap:wrap;}

/* ============ 顶部导航 ============ */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:60;
  height:72px;
  background:rgba(255,255,255,.86);
  -webkit-backdrop-filter:blur(12px);
  backdrop-filter:blur(12px);
  border-bottom:1px solid transparent;
  transition:box-shadow .3s ease,border-color .3s ease,background .3s ease;
}
.site-header.is-scrolled{
  background:rgba(255,255,255,.92);
  border-bottom-color:var(--line);
  box-shadow:var(--sh-nav);
}
.header-inner{
  height:72px;
  display:flex;
  align-items:center;
  gap:20px;
}
.logo{display:inline-flex;align-items:center;gap:10px;flex:0 0 auto;}
.logo-mark{
  width:34px;height:34px;border-radius:12px;
  background:var(--grad);
  display:inline-flex;align-items:center;justify-content:center;
  box-shadow:0 6px 16px rgba(91,43,224,.28);
}
.logo-mark svg{width:20px;height:20px;}
.logo-text{font-size:17px;font-weight:800;letter-spacing:-.01em;color:var(--ink);white-space:nowrap;}
.logo-dot{
  width:8px;height:8px;border-radius:50%;
  background:var(--grad);
  display:inline-block;
  margin-left:-2px;
  animation:dotPulse 2.6s ease-in-out infinite;
}
@keyframes dotPulse{0%,100%{transform:scale(1);opacity:1}50%{transform:scale(1.35);opacity:.72}}

.nav-main{
  display:flex;align-items:center;justify-content:center;
  gap:4px;flex:1 1 auto;
}
.nav-link{
  position:relative;
  display:inline-block;
  padding:8px 12px;
  font-size:15px;
  font-weight:500;
  color:var(--muted);
  border-radius:10px;
  white-space:nowrap;
  transition:color .25s ease;
}
.nav-link::after{
  content:'';
  position:absolute;
  left:12px;right:12px;bottom:2px;
  height:3px;border-radius:3px;
  background:var(--grad);
  transform:scaleX(0);
  transform-origin:left center;
  transition:transform .3s ease;
}
.nav-link:hover{color:var(--ink);}
.nav-link:hover::after,.nav-link.is-active::after{transform:scaleX(1);}
.nav-link.is-active{color:var(--brand);font-weight:600;}

.header-actions{display:flex;align-items:center;gap:12px;flex:0 0 auto;}
.nav-search{
  position:relative;
  display:flex;align-items:center;
  width:220px;height:42px;
  background:#fff;
  border:1px solid var(--line-2);
  border-radius:var(--r-btn);
  padding:0 14px;
  transition:border-color .25s ease,box-shadow .25s ease;
}
.nav-search svg{width:16px;height:16px;color:#A79FC0;flex:0 0 16px;}
.nav-search input{
  border:0;background:transparent;width:100%;
  padding:0 0 0 8px;
  font-size:14px;color:var(--ink);
  outline:none;
}
.nav-search input::placeholder{color:#A79FC0;}
.nav-search:focus-within{
  border-color:var(--brand);
  box-shadow:0 0 0 4px rgba(91,43,224,.14);
}
.btn-text{
  font-size:15px;font-weight:500;color:var(--muted);
  padding:8px 6px;border-radius:10px;
  transition:color .2s ease;
}
.btn-text:hover{color:var(--brand);}

.btn{
  display:inline-flex;align-items:center;justify-content:center;
  gap:8px;
  min-height:44px;
  padding:0 22px;
  border-radius:var(--r-btn);
  font-size:15px;font-weight:600;
  border:1px solid transparent;
  transition:transform .3s ease,box-shadow .3s ease,background .4s ease,background-position .4s ease,color .25s ease,border-color .25s ease;
  white-space:nowrap;
}
.btn-primary{
  background:var(--grad);
  background-size:160% 160%;
  background-position:0% 50%;
  color:#fff;
  box-shadow:0 8px 22px rgba(91,43,224,.26);
}
.btn-primary:hover{
  transform:translateY(-2px);
  background-position:100% 50%;
  box-shadow:0 14px 32px rgba(91,43,224,.34);
}
.btn-ghost{
  background:#fff;
  color:var(--ink);
  border-color:var(--line-2);
}
.btn-ghost:hover{background:#F1EBFF;border-color:#D9CDFB;transform:translateY(-2px);}
.btn-outline{
  background:transparent;
  color:var(--brand);
  border:1px solid #D9CDFB;
}
.btn-outline:hover{background:#F1EBFF;border-color:var(--brand);}
.btn-sm{min-height:40px;padding:0 18px;font-size:14px;}
.btn-block{width:100%;}

.nav-toggle{
  display:none;
  width:44px;height:44px;
  border-radius:14px;
  border:1px solid var(--line-2);
  background:#fff;
  align-items:center;justify-content:center;
}
.nav-toggle svg{width:20px;height:20px;color:var(--ink);}

/* 抽屉 */
.drawer-mask{
  position:fixed;inset:0;z-index:70;
  background:rgba(23,17,46,.45);
  opacity:0;visibility:hidden;
  transition:opacity .3s ease,visibility .3s ease;
}
.drawer-mask.is-open{opacity:1;visibility:visible;}
.drawer{
  position:fixed;top:0;right:0;bottom:0;z-index:80;
  width:86vw;max-width:360px;
  background:#fff;
  padding:24px 20px 40px;
  overflow-y:auto;
  transform:translateX(105%);
  transition:transform .35s cubic-bezier(.4,0,.2,1);
  box-shadow:-10px 0 40px rgba(23,17,46,.16);
}
.drawer.is-open{transform:translateX(0);}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:24px;}
.drawer-close{
  width:40px;height:40px;border-radius:12px;
  border:1px solid var(--line-2);
  display:flex;align-items:center;justify-content:center;
}
.drawer-close svg{width:18px;height:18px;}
.drawer-nav{display:flex;flex-direction:column;gap:6px;margin-bottom:24px;}
.drawer-nav a{
  padding:13px 14px;border-radius:14px;
  font-size:16px;font-weight:500;color:var(--muted);
  transition:background .2s ease,color .2s ease;
}
.drawer-nav a:hover{background:#F7F5FB;color:var(--ink);}
.drawer-nav a.is-active{background:#F1EBFF;color:var(--brand);font-weight:600;}
.drawer .nav-search{width:100%;margin-bottom:16px;}
.drawer-actions{display:flex;flex-direction:column;gap:12px;}

/* ============ 面包屑 ============ */
.crumb{
  font-size:14px;
  line-height:1.6;
  display:flex;align-items:center;gap:8px;flex-wrap:wrap;
}
.crumb a{transition:color .2s ease;}
.crumb span.sep{opacity:.55;}

/* ============ Hero ============ */
.hero-cat{
  position:relative;
  overflow:hidden;
  padding:128px 0 88px;
  background:
    linear-gradient(135deg,rgba(91,43,224,.95) 0%,rgba(193,59,255,.88) 55%,rgba(255,122,61,.85) 100%),
    url('/assets/images/backpic/back-1.png') center/cover no-repeat;
}
.hero-cat::before{
  content:'';
  position:absolute;inset:0;
  background-image:
    linear-gradient(rgba(255,255,255,.07) 1px,transparent 1px),
    linear-gradient(90deg,rgba(255,255,255,.07) 1px,transparent 1px);
  background-size:56px 56px;
  pointer-events:none;
}
.hero-cat .container{position:relative;z-index:2;}
.hero-cat .crumb{color:rgba(255,255,255,.72);margin-bottom:24px;}
.hero-cat .crumb .now{color:#fff;font-weight:700;}
.hero-cat .crumb a:hover{color:#fff;}

.hero-grid{display:grid;grid-template-columns:1.15fr .85fr;gap:48px;align-items:center;}
.hero-badge{
  display:inline-flex;align-items:center;gap:8px;
  padding:7px 16px;
  border-radius:var(--r-btn);
  background:var(--lime);
  color:#241844;
  font-size:14px;font-weight:700;
  margin-bottom:20px;
}
.hero-badge .dot{width:7px;height:7px;border-radius:50%;background:#17112E;}
.hero-cat h1{
  font-size:clamp(2rem,4.4vw,3.4rem);
  line-height:1.15;
  font-weight:800;
  letter-spacing:-.01em;
  color:#fff;
  margin-bottom:20px;
}
.hero-sub{
  font-size:16px;
  line-height:1.85;
  color:rgba(255,255,255,.88);
  max-width:560px;
  margin-bottom:32px;
}
.hero-cta{display:flex;gap:14px;flex-wrap:wrap;margin-bottom:28px;}
.hero-cat .btn-ghost{background:rgba(255,255,255,.96);}
.trust-row{display:flex;gap:24px;flex-wrap:wrap;}
.trust-item{
  display:inline-flex;align-items:center;gap:8px;
  font-size:14px;color:rgba(255,255,255,.9);
}
.trust-item svg{width:16px;height:16px;flex:0 0 16px;}

.hero-visual{position:relative;}
.hero-visual img{
  width:100%;
  aspect-ratio:4/3;
  object-fit:cover;
  border-radius:var(--r-card);
  box-shadow:0 20px 50px rgba(23,17,46,.28);
  background:var(--grad);
}
.hero-float{
  position:absolute;
  left:-18px;bottom:-22px;
  background:#fff;
  border-radius:20px;
  padding:16px 22px;
  box-shadow:0 14px 38px rgba(23,17,46,.22);
  display:flex;align-items:center;gap:14px;
}
.hero-float .n{
  font-size:30px;font-weight:800;
  background:var(--grad);
  -webkit-background-clip:text;background-clip:text;
  color:transparent;
  line-height:1;
}
.hero-float .t{font-size:14px;color:var(--muted);line-height:1.5;}

/* ============ 数据徽章条 ============ */
.stats-strip{margin-top:-44px;position:relative;z-index:5;padding-bottom:8px;}
.stats-grid{
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:24px;
  background:var(--dark);
  border-radius:var(--r-card);
  padding:32px 36px;
  box-shadow:var(--sh);
}
.badge-stat{text-align:center;}
.badge-stat .stat-num{
  display:block;
  font-size:clamp(1.75rem,3vw,2.6rem);
  font-weight:800;
  line-height:1.1;
  background:linear-gradient(135deg,#B8F53C 0%,#C13BFF 60%,#FF7A3D 100%);
  -webkit-background-clip:text;background-clip:text;
  color:transparent;
}
.badge-stat .stat-label{
  display:block;
  margin-top:8px;
  font-size:14px;
  color:#CFC9E4;
  line-height:1.6;
}

/* ============ 筛选条 ============ */
.filter-bar{
  display:flex;align-items:center;justify-content:space-between;
  gap:20px;flex-wrap:wrap;
  padding:24px 0 0;
}
.chips{display:flex;gap:10px;flex-wrap:wrap;}
.chip{
  display:inline-flex;align-items:center;
  min-height:40px;padding:0 18px;
  border-radius:var(--r-btn);
  border:1px solid var(--line-2);
  background:#fff;
  font-size:14px;color:var(--muted);
  transition:background .25s ease,color .25s ease,border-color .25s ease,transform .25s ease;
}
.chip:hover{background:#F1EBFF;border-color:#D9CDFB;color:var(--brand);transform:translateY(-2px);}
.chip.is-active{background:var(--grad);color:#fff;border-color:transparent;font-weight:600;}
.sorts{display:flex;align-items:center;gap:14px;font-size:14px;color:var(--muted);}
.sort{transition:color .2s ease;}
.sort:hover{color:var(--brand);}
.sort.is-active{color:var(--brand);font-weight:700;}

/* ============ 主体布局 ============ */
.layout{
  display:grid;
  grid-template-columns:240px minmax(0,1fr);
  gap:32px;
  align-items:start;
  padding-top:32px;
}
.side-panel{
  position:sticky;top:96px;
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--r-card);
  padding:24px 20px;
  box-shadow:var(--sh);
}
.side-title{
  font-size:15px;font-weight:700;
  margin-bottom:16px;
  padding-left:10px;
  position:relative;
}
.side-title::before{
  content:'';position:absolute;left:0;top:.2em;bottom:.2em;width:3px;border-radius:3px;background:var(--grad);
}
.side-list{display:flex;flex-direction:column;gap:4px;}
.side-link{
  display:flex;align-items:center;justify-content:space-between;
  gap:10px;
  padding:10px 12px;
  border-radius:12px;
  font-size:14px;color:var(--muted);
  transition:background .2s ease,color .2s ease;
}
.side-link:hover{background:#F7F5FB;color:var(--ink);}
.side-link.is-active{background:#F1EBFF;color:var(--brand);font-weight:600;}
.side-count{
  font-size:12px;font-weight:700;
  min-width:28px;text-align:center;
  padding:2px 8px;border-radius:999px;
  background:var(--line);color:var(--muted);
}
.side-link.is-active .side-count{background:var(--brand);color:#fff;}
.side-tip{
  margin-top:20px;padding:16px;border-radius:16px;
  background:#F7F5FB;
  font-size:13px;line-height:1.7;color:var(--muted);
}

/* ============ 玩法卡片 ============ */
.guide-grid{
  display:grid;
  grid-template-columns:repeat(2,minmax(0,1fr));
  gap:24px;
}
.card-guide{
  display:flex;flex-direction:column;
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--r-card);
  padding:20px;
  box-shadow:var(--sh);
  transition:transform .3s ease,box-shadow .3s ease,border-color .3s ease;
}
.card-guide:hover{transform:translateY(-6px);border-color:#D9CDFB;box-shadow:var(--sh-hover);}
.card-cover{
  position:relative;
  aspect-ratio:16/9;
  border-radius:var(--r-img);
  overflow:hidden;
  background:var(--grad);
  margin-bottom:18px;
}
.card-cover img{width:100%;height:100%;object-fit:cover;transition:transform .3s ease;}
.card-guide:hover .card-cover img{transform:scale(1.04);}
.card-tag{
  position:absolute;left:12px;top:12px;
  padding:4px 12px;
  border-radius:999px;
  background:var(--lime);
  color:#241844;
  font-size:12px;font-weight:700;
}
.card-guide h3{
  font-size:1.125rem;font-weight:600;line-height:1.5;
  margin-bottom:10px;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.card-guide p{
  font-size:14px;line-height:1.75;color:var(--muted);
  margin-bottom:16px;
  display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden;
}
.card-meta{
  margin-top:auto;
  display:flex;align-items:center;gap:14px;
  padding-top:14px;
  border-top:1px solid var(--line);
  font-size:13px;color:#8C85A3;
}
.card-meta .arrow{
  margin-left:auto;
  display:inline-flex;align-items:center;gap:6px;
  color:var(--brand);font-weight:600;
  transition:transform .25s ease;
}
.card-guide:hover .card-meta .arrow{transform:translateX(4px);}

/* ============ 分页 ============ */
.pager{
  display:flex;align-items:center;justify-content:center;
  gap:10px;flex-wrap:wrap;
  margin-top:40px;
}
.pager a,.pager span{
  min-width:40px;height:40px;
  padding:0 12px;
  display:inline-flex;align-items:center;justify-content:center;
  border-radius:12px;
  background:#fff;
  border:1px solid var(--line-2);
  font-size:14px;color:var(--muted);
  transition:background .2s ease,color .2s ease,border-color .2s ease;
}
.pager a:hover{background:#F1EBFF;color:var(--brand);border-color:#D9CDFB;}
.pager .is-current{
  background:var(--grad);color:#fff;border-color:transparent;font-weight:700;
}

/* ============ 上手四步 ============ */
.steps{
  display:grid;grid-template-columns:repeat(4,1fr);gap:24px;
}
.step-card{
  position:relative;
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--r-card);
  padding:28px 24px;
  box-shadow:var(--sh);
  transition:transform .3s ease,box-shadow .3s ease;
}
.step-card:hover{transform:translateY(-6px);box-shadow:var(--sh-hover);}
.step-no{
  width:44px;height:44px;border-radius:var(--r-icon);
  background:var(--grad);
  color:#fff;font-weight:800;font-size:18px;
  display:flex;align-items:center;justify-content:center;
  margin-bottom:18px;
}
.step-card h3{font-size:1.0625rem;font-weight:700;margin-bottom:10px;}
.step-card p{font-size:14px;line-height:1.75;color:var(--muted);}

/* ============ 适用场景 ============ */
.scene-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.scene-card{
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--r-card);
  padding:32px 28px;
  box-shadow:var(--sh);
  transition:transform .3s ease,box-shadow .3s ease,border-color .3s ease;
}
.scene-card:hover{transform:translateY(-6px);box-shadow:var(--sh-hover);border-color:#D9CDFB;}
.icon-block{
  width:56px;height:56px;border-radius:var(--r-icon);
  background:var(--grad);
  display:flex;align-items:center;justify-content:center;
  margin-bottom:20px;
}
.icon-block svg{width:26px;height:26px;color:#fff;}
.scene-card h3{font-size:1.125rem;font-weight:600;margin-bottom:10px;}
.scene-card p{font-size:14px;line-height:1.8;color:var(--muted);}
.text-link{
  display:inline-flex;align-items:center;gap:6px;
  margin-top:18px;
  font-size:14px;font-weight:600;color:var(--brand);
}
.text-link svg{width:16px;height:16px;transition:transform .25s ease;}
.text-link:hover svg{transform:translateX(4px);}

/* ============ FAQ ============ */
.faq-card{
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--r-card);
  padding:8px 32px;
  box-shadow:var(--sh);
}
.faq-accordion{border:0;background:transparent;margin:0;}
.faq-accordion .accordion-item{
  border:0;
  border-bottom:1px solid var(--line);
  background:transparent;
}
.faq-accordion .accordion-item:last-child{border-bottom:0;}
.faq-accordion .accordion-title{
  position:relative;
  display:flex;align-items:center;justify-content:space-between;gap:20px;
  padding:24px 0 24px 4px;
  border:0;background:transparent;
  font-size:16px;font-weight:600;color:var(--ink);
  line-height:1.6;
}
.faq-accordion .accordion-title:hover{color:var(--brand);}
.faq-accordion .accordion-title::after{
  content:'';
  flex:0 0 20px;
  width:20px;height:20px;
  background:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%235B2BE0' stroke-width='2' stroke-linecap='round'%3E%3Cpath d='M12 5v14M5 12h14'/%3E%3C/svg%3E") center/contain no-repeat;
  transition:transform .3s ease;
}
.faq-accordion .accordion-item.is-active .accordion-title::after{
  transform:rotate(180deg);
  background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%235B2BE0' stroke-width='2' stroke-linecap='round'%3E%3Cpath d='M5 12h14'/%3E%3C/svg%3E");
}
.faq-accordion .accordion-item.is-active .accordion-title::before{
  content:'';
  position:absolute;left:-16px;top:20px;bottom:20px;width:4px;border-radius:4px;
  background:var(--grad);
}
.faq-accordion .accordion-content{
  border:0;background:transparent;
  padding:0 56px 24px 4px;
  font-size:15px;line-height:1.85;color:var(--muted);
}

/* ============ CTA 带 ============ */
.cta-band{
  position:relative;
  overflow:hidden;
  border-radius:var(--r-card);
  padding:56px 48px;
  background:
    linear-gradient(135deg,rgba(91,43,224,.96) 0%,rgba(193,59,255,.9) 55%,rgba(255,122,61,.9) 100%),
    url('/assets/images/backpic/back-2.webp') center/cover no-repeat;
  display:flex;align-items:center;justify-content:space-between;
  gap:32px;flex-wrap:wrap;
  box-shadow:var(--sh);
}
.cta-band h2{
  font-size:clamp(1.5rem,2.6vw,2rem);
  font-weight:800;color:#fff;line-height:1.3;margin-bottom:12px;
}
.cta-band p{font-size:15px;color:rgba(255,255,255,.9);max-width:620px;line-height:1.8;}
.cta-band .btn-ghost{background:#fff;color:var(--ink);border-color:transparent;}

/* ============ 页脚 ============ */
.site-footer{
  margin-top:88px;
  background:var(--dark);
  color:#CFC9E4;
  border-top:3px solid transparent;
  border-image:var(--grad) 1;
  position:relative;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.6fr 1fr 1fr 1.2fr;
  gap:40px;
  padding:64px 0 40px;
}
.footer-brand .logo-text{color:#fff;}
.footer-desc{font-size:14px;line-height:1.85;color:#CFC9E4;margin-top:18px;max-width:340px;}
.social-row{display:flex;gap:12px;margin-top:22px;}
.social-row a{
  width:40px;height:40px;border-radius:12px;
  background:rgba(255,255,255,.08);
  display:flex;align-items:center;justify-content:center;
  color:#CFC9E4;
  transition:background .25s ease,color .25s ease,transform .25s ease;
}
.social-row a:hover{background:var(--brand);color:#fff;transform:translateY(-2px);}
.social-row svg{width:18px;height:18px;}
.footer-col h4{font-size:16px;font-weight:600;color:#fff;margin-bottom:18px;}
.footer-col ul{display:flex;flex-direction:column;gap:12px;}
.footer-col a,.footer-col li{font-size:14px;color:#CFC9E4;line-height:1.7;}
.footer-col a{transition:color .2s ease;}
.footer-col a:hover{color:#fff;}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.1);
  padding:22px 0;
  display:flex;align-items:center;justify-content:space-between;
  gap:16px;flex-wrap:wrap;
  font-size:13px;color:#A79FC0;
}

/* ============ 返回顶部 ============ */
.to-top{
  position:fixed;right:24px;bottom:24px;z-index:50;
  width:48px;height:48px;border-radius:50%;
  background:#fff;
  border:2px solid transparent;
  background-image:linear-gradient(#fff,#fff),var(--grad);
  background-origin:border-box;
  background-clip:padding-box,border-box;
  display:flex;align-items:center;justify-content:center;
  box-shadow:var(--sh);
  opacity:0;visibility:hidden;
  transition:opacity .3s ease,visibility .3s ease,transform .3s ease;
}
.to-top.is-show{opacity:1;visibility:visible;}
.to-top:hover{transform:translateY(-2px);}
.to-top svg{width:18px;height:18px;color:var(--brand);}

/* ============ 响应式 ============ */
@media (max-width:1024px){
  .nav-main{display:none;}
  .header-actions .nav-search,
  .header-actions .btn-text,
  .header-actions .btn{display:none;}
  .nav-toggle{display:flex;}
  .header-inner{justify-content:space-between;}

  .hero-cat{padding:112px 0 72px;}
  .hero-grid{grid-template-columns:1fr;gap:40px;}
  .hero-visual{max-width:560px;}
  .hero-float{left:0;}

  .stats-grid{grid-template-columns:repeat(2,1fr);padding:28px 24px;gap:28px 16px;}

  .layout{grid-template-columns:1fr;}
  .side-panel{position:static;padding:20px 16px;}
  .side-list{flex-direction:row;overflow-x:auto;gap:10px;padding-bottom:6px;-webkit-overflow-scrolling:touch;}
  .side-list li{flex:0 0 auto;}
  .side-link{white-space:nowrap;border:1px solid var(--line-2);padding:9px 14px;}
  .side-tip{display:none;}

  .steps{grid-template-columns:repeat(2,1fr);}
  .scene-grid{grid-template-columns:repeat(2,1fr);}

  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;padding:48px 0 32px;}
  .cta-band{padding:40px 28px;}
}

@media (max-width:640px){
  .container{padding:0 20px;}
  .sec-pad{padding:52px 0;}
  .sec-pad-sm{padding:44px 0;}
  .sec-head{margin-bottom:28px;}

  .hero-cat{padding:104px 0 64px;}
  .hero-sub{font-size:15px;}
  .hero-cta{width:100%;}
  .hero-cta .btn{flex:1 1 100%;}
  .trust-row{gap:14px;}

  .stats-strip{margin-top:-32px;}
  .stats-grid{grid-template-columns:1fr 1fr;border-radius:20px;}

  .guide-grid{grid-template-columns:1fr;gap:16px;}
  .card-guide{padding:20px;}
  .steps{grid-template-columns:1fr;gap:16px;}
  .scene-grid{grid-template-columns:1fr;gap:16px;}
  .step-card,.scene-card{padding:22px 20px;}

  .faq-card{padding:4px 20px;}
  .faq-accordion .accordion-title{font-size:15px;padding:20px 0;}
  .faq-accordion .accordion-content{padding:0 0 20px;}

  .cta-band{padding:32px 22px;}
  .cta-band .btn{width:100%;}

  .footer-grid{grid-template-columns:1fr;gap:28px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}

  .to-top{right:16px;bottom:16px;}
}

/* roulang page: category2 */
:root{
  --c-brand:#5B2BE0;
  --c-brand-2:#C13BFF;
  --c-accent:#FF7A3D;
  --c-lime:#B8F53C;
  --c-bg:#F7F5FB;
  --c-card:#FFFFFF;
  --c-dark:#17112E;
  --c-dark-2:#241844;
  --c-ink:#171326;
  --c-ink-2:#5C5670;
  --c-ink-3:#8B85A0;
  --c-line:#EDE9F7;
  --c-line-2:#E4DEF6;
  --grad:linear-gradient(135deg,#5B2BE0 0%,#C13BFF 52%,#FF7A3D 100%);
  --r-card:24px;
  --r-img:20px;
  --r-pill:999px;
  --r-input:14px;
  --r-icon:16px;
  --sh-rest:0 8px 28px rgba(52,25,120,.10);
  --sh-hover:0 14px 38px rgba(52,25,120,.16);
  --sh-nav:0 6px 20px rgba(52,25,120,.08);
  --sp-1:8px;--sp-2:16px;--sp-3:24px;--sp-4:32px;--sp-5:48px;--sp-6:64px;--sp-7:96px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:-apple-system,"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Source Han Sans SC",sans-serif;
  font-size:16px;line-height:1.8;
  color:var(--c-ink);
  background:var(--c-bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border:0;}
a{color:inherit;text-decoration:none;}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4,p{margin:0;}
button,input,select,textarea{font-family:inherit;font-size:inherit;}
:focus-visible{outline:2px solid var(--c-brand);outline-offset:2px;border-radius:6px;}
.container{max-width:1200px;margin:0 auto;padding:0 24px;width:100%;}
.sec-pad{padding:88px 0;}
.num{font-variant-numeric:tabular-nums;}

/* ---------- 顶部导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(255,255,255,.94);
  border-bottom:1px solid transparent;
  transition:box-shadow .3s ease,border-color .3s ease,background .3s ease;
}
.site-header.is-scrolled{
  background:rgba(255,255,255,.92);
  -webkit-backdrop-filter:blur(12px);
  backdrop-filter:blur(12px);
  border-bottom-color:var(--c-line);
  box-shadow:var(--sh-nav);
}
.header-inner{
  max-width:1200px;margin:0 auto;padding:0 24px;
  height:72px;display:flex;align-items:center;gap:20px;
}
.logo{display:inline-flex;align-items:center;gap:10px;flex:0 0 auto;}
.logo-mark{
  width:34px;height:34px;border-radius:10px;background:var(--c-brand);
  display:inline-flex;align-items:center;justify-content:center;
}
.logo-mark svg{width:20px;height:20px;}
.logo-text{font-size:17px;font-weight:800;letter-spacing:-.01em;color:var(--c-ink);white-space:nowrap;}
.logo-dot{
  width:8px;height:8px;border-radius:50%;background:var(--grad);flex:0 0 auto;
}
.nav-main{display:flex;align-items:center;gap:26px;margin-left:8px;}
.nav-link{
  position:relative;padding:6px 0;font-size:15px;font-weight:500;color:var(--c-ink-2);
  transition:color .25s ease;
}
.nav-link::after{
  content:"";position:absolute;left:0;right:0;bottom:-2px;height:3px;border-radius:3px;
  background:var(--grad);transform:scaleX(0);transform-origin:left;
  transition:transform .3s ease;
}
.nav-link:hover{color:var(--c-brand);}
.nav-link.is-active{color:var(--c-brand);font-weight:700;}
.nav-link.is-active::after{transform:scaleX(1);}
.header-right{display:flex;align-items:center;gap:12px;margin-left:auto;}
.search-box{position:relative;width:220px;}
.search-box svg{
  position:absolute;left:13px;top:50%;transform:translateY(-50%);
  width:16px;height:16px;color:var(--c-ink-3);pointer-events:none;
}
.search-box input{
  width:100%;height:40px;border-radius:var(--r-pill);
  border:1px solid var(--c-line);background:#fff;color:var(--c-ink);
  padding:0 16px 0 38px;font-size:14px;transition:border-color .25s ease,box-shadow .25s ease;
}
.search-box input::placeholder{color:var(--c-ink-3);}
.search-box input:focus{
  outline:none;border-color:var(--c-brand);
  box-shadow:0 0 0 4px rgba(91,43,224,.12);
}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:42px;padding:0 22px;border-radius:var(--r-pill);
  font-size:14.5px;font-weight:600;border:1px solid transparent;
  cursor:pointer;transition:transform .25s ease,box-shadow .3s ease,background-color .3s ease,color .25s ease,border-color .25s ease;
  min-height:44px;
}
.btn-primary{color:#fff;background:var(--grad);background-size:180% 180%;background-position:0% 50%;box-shadow:0 6px 18px rgba(91,43,224,.24);}
.btn-primary:hover{transform:translateY(-2px);background-position:100% 50%;box-shadow:0 12px 28px rgba(91,43,224,.30);color:#fff;}
.btn-ghost{background:#fff;border-color:var(--c-line-2);color:var(--c-ink);}
.btn-ghost:hover{background:#F1EBFF;border-color:#D9CDFB;transform:translateY(-2px);}
.btn-link{background:transparent;border:0;color:var(--c-ink-2);padding:0 8px;font-weight:500;}
.btn-link:hover{color:var(--c-brand);}
.hamburger{
  display:none;width:44px;height:44px;border-radius:12px;border:1px solid var(--c-line);
  background:#fff;align-items:center;justify-content:center;cursor:pointer;
}
.hamburger svg{width:20px;height:20px;color:var(--c-ink);}

/* ---------- 抽屉 ---------- */
.off-canvas{
  background:#fff;width:86vw;max-width:360px;
  box-shadow:-12px 0 40px rgba(23,17,46,.18);
}
.off-canvas-content{box-shadow:none !important;background:var(--c-bg);}
.oc-inner{padding:22px 24px 32px;display:flex;flex-direction:column;gap:22px;height:100%;}
.oc-top{display:flex;align-items:center;justify-content:space-between;}
.oc-close{
  width:40px;height:40px;border-radius:12px;border:1px solid var(--c-line);
  background:#fff;display:inline-flex;align-items:center;justify-content:center;cursor:pointer;
}
.oc-close svg{width:18px;height:18px;color:var(--c-ink-2);}
.oc-nav{display:flex;flex-direction:column;}
.oc-nav a{
  padding:14px 4px;font-size:16px;font-weight:500;color:var(--c-ink-2);
  border-bottom:1px solid var(--c-line);display:flex;justify-content:space-between;align-items:center;
}
.oc-nav a.is-active{color:var(--c-brand);font-weight:700;}
.oc-nav a:hover{color:var(--c-brand);}
.oc-search{position:relative;}
.oc-search input{
  width:100%;height:46px;border-radius:var(--r-input);
  border:1px solid var(--c-line-2);padding:0 16px 0 40px;background:#fff;font-size:14.5px;
}
.oc-search input:focus{outline:none;border-color:var(--c-brand);box-shadow:0 0 0 4px rgba(91,43,224,.12);}
.oc-search svg{position:absolute;left:14px;top:50%;transform:translateY(-50%);width:16px;height:16px;color:var(--c-ink-3);}
.oc-actions{display:flex;flex-direction:column;gap:12px;margin-top:auto;}

/* ---------- 横幅 ---------- */
.page-banner{
  position:relative;color:#fff;
  padding:56px 0 104px;
  background-image:linear-gradient(120deg,rgba(23,17,46,.90) 0%,rgba(36,24,68,.72) 52%,rgba(91,43,224,.58) 100%),url('/assets/images/backpic/back-1.png');
  background-size:cover;background-position:center;
}
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:14px;color:rgba(255,255,255,.68);margin-bottom:22px;}
.breadcrumb a{transition:color .25s ease;}
.breadcrumb a:hover{color:#fff;}
.breadcrumb .sep{opacity:.55;}
.breadcrumb .current{color:#fff;font-weight:700;}
.banner-eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  padding:6px 16px;border-radius:var(--r-pill);
  background:var(--c-lime);color:#2A3A00;
  font-size:14px;font-weight:700;margin-bottom:20px;
}
.page-banner h1{
  font-size:clamp(2rem,4.4vw,3.4rem);line-height:1.15;font-weight:800;letter-spacing:-.01em;
  max-width:820px;color:#fff;
}
.banner-lead{
  margin-top:18px;max-width:720px;font-size:16.5px;line-height:1.8;color:rgba(255,255,255,.82);
}
.filter-bar{display:flex;flex-wrap:wrap;gap:10px;margin-top:28px;}
.chip{
  padding:8px 18px;border-radius:var(--r-pill);font-size:13.5px;
  background:rgba(255,255,255,.12);border:1px solid rgba(255,255,255,.24);
  color:#fff;transition:background-color .25s ease,color .25s ease,border-color .25s ease,transform .25s ease;
  display:inline-flex;align-items:center;min-height:38px;
}
.chip:hover{background:rgba(255,255,255,.22);transform:translateY(-1px);}
.chip.is-active{background:var(--c-lime);border-color:var(--c-lime);color:#2A3A00;font-weight:700;}

/* ---------- 数据徽章条 ---------- */
.stat-strip{
  position:relative;z-index:5;margin-top:-64px;
  background:#fff;border:1px solid var(--c-line);border-radius:var(--r-card);
  box-shadow:var(--sh-rest);padding:24px;
  display:grid;grid-template-columns:repeat(4,1fr);gap:16px;
}
.stat{
  background:var(--c-dark);border-radius:20px;padding:22px 18px;text-align:center;
}
.stat-num{
  display:block;font-size:clamp(1.75rem,3vw,2.6rem);font-weight:800;line-height:1.1;
  background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent;
  font-variant-numeric:tabular-nums;
}
.stat-label{display:block;margin-top:8px;font-size:14px;color:#CFC9E4;line-height:1.6;}

/* ---------- 板块标题 ---------- */
.sec-head{
  display:flex;align-items:flex-end;justify-content:space-between;gap:24px;
  margin-bottom:36px;flex-wrap:wrap;
}
.sec-eyebrow{
  display:inline-block;font-size:13.5px;font-weight:700;letter-spacing:.04em;
  color:var(--c-brand);background:#F1EBFF;border-radius:var(--r-pill);
  padding:5px 14px;margin-bottom:14px;
}
.sec-head h2{
  font-size:clamp(1.5rem,2.6vw,2.125rem);font-weight:700;line-height:1.3;letter-spacing:-.01em;
  position:relative;padding-left:16px;
}
.sec-head h2::before{
  content:"";position:absolute;left:0;top:6px;bottom:6px;width:4px;border-radius:4px;background:var(--grad);
}
.sec-sub{margin-top:12px;font-size:15.5px;color:var(--c-ink-2);max-width:760px;line-height:1.8;padding-left:16px;}
.link-arrow{
  display:inline-flex;align-items:center;gap:6px;font-size:14.5px;font-weight:600;color:var(--c-brand);
  transition:color .25s ease;white-space:nowrap;
}
.link-arrow span{transition:transform .3s ease;}
.link-arrow:hover span{transform:translateX(4px);}
.link-arrow:hover{color:#7A47F0;}

/* ---------- 内容卡片 ---------- */
.news-grid{margin-left:-14px;margin-right:-14px;}
.news-grid > .cell{padding:0 14px;margin-bottom:28px;display:flex;}
.news-card{
  display:flex;flex-direction:column;width:100%;
  background:var(--c-card);border:1px solid var(--c-line);border-radius:var(--r-card);
  overflow:hidden;box-shadow:var(--sh-rest);
  transition:transform .3s ease,box-shadow .3s ease,border-color .3s ease;
}
.news-card:hover{transform:translateY(-6px);box-shadow:var(--sh-hover);border-color:#D9CDFB;}
.news-thumb{
  position:relative;aspect-ratio:16/9;overflow:hidden;
  background:var(--grad);
}
.news-thumb img{
  width:100%;height:100%;object-fit:cover;
  transition:transform .3s ease;
}
.news-card:hover .news-thumb img{transform:scale(1.04);}
.news-body{padding:24px 26px 26px;display:flex;flex-direction:column;flex:1;}
.pill{
  display:inline-flex;align-items:center;align-self:flex-start;
  padding:5px 13px;border-radius:var(--r-pill);
  font-size:12.5px;font-weight:600;
  background:#F1EBFF;color:var(--c-brand);
}
.pill-lime{background:rgba(184,245,60,.34);color:#3D5C00;}
.news-title{
  margin:14px 0 10px;font-size:1.0625rem;font-weight:600;line-height:1.5;color:var(--c-ink);
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.news-desc{
  font-size:14.5px;line-height:1.75;color:var(--c-ink-2);
  display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden;
}
.news-meta{
  margin-top:auto;padding-top:16px;display:flex;flex-wrap:wrap;align-items:center;gap:14px;
  font-size:13px;color:var(--c-ink-3);border-top:1px solid var(--c-line);
}
.news-meta time{font-variant-numeric:tabular-nums;}
.news-meta .dot{width:3px;height:3px;border-radius:50%;background:#CFC9E4;}

/* ---------- 分页 ---------- */
.pager{display:flex;flex-wrap:wrap;align-items:center;justify-content:center;gap:10px;margin-top:20px;}
.pager-item{
  width:40px;height:40px;border-radius:12px;display:inline-flex;align-items:center;justify-content:center;
  font-size:14.5px;font-weight:600;background:#fff;border:1px solid var(--c-line);color:var(--c-ink-2);
  transition:background-color .25s ease,color .25s ease,border-color .25s ease,transform .25s ease;
}
.pager-item:hover{background:#F1EBFF;border-color:#D9CDFB;color:var(--c-brand);transform:translateY(-2px);}
.pager-item.is-current{background:var(--grad);border-color:transparent;color:#fff;}
.pager-item.is-current:hover{transform:none;}
.pager-dots{width:auto;padding:0 6px;background:transparent;border:0;color:var(--c-ink-3);}
.pager-next{width:auto;padding:0 18px;}

/* ---------- 深色方法区 ---------- */
.sec-dark{
  background:linear-gradient(160deg,#17112E 0%,#241844 68%,#2E1B57 100%);
  color:#fff;padding:88px 0;
}
.sec-dark .sec-head h2{color:#fff;}
.sec-dark .sec-eyebrow{background:rgba(184,245,60,.18);color:var(--c-lime);}
.sec-dark .sec-sub{color:#CFC9E4;}
.method-list{display:flex;flex-direction:column;gap:18px;margin-top:8px;}
.method-list li{
  display:flex;gap:14px;align-items:flex-start;
  background:rgba(255,255,255,.05);border:1px solid rgba(255,255,255,.10);
  border-radius:18px;padding:18px 20px;
  font-size:15px;line-height:1.75;color:#E6E1F7;
}
.method-list .tick{
  flex:0 0 auto;width:24px;height:24px;border-radius:50%;
  background:var(--c-lime);display:inline-flex;align-items:center;justify-content:center;margin-top:2px;
}
.method-list .tick svg{width:14px;height:14px;color:#2A3A00;}
.badge-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:16px;}
.badge-outline{
  background:rgba(255,255,255,.05);
  border:1px solid rgba(193,59,255,.55);
  border-radius:20px;padding:26px 20px;text-align:center;
}
.badge-outline .num{
  display:block;font-size:clamp(1.75rem,3vw,2.4rem);font-weight:800;line-height:1.1;
  background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent;
}
.badge-outline .cap{display:block;margin-top:8px;font-size:14px;color:#CFC9E4;}

/* ---------- 更新记录时间线 ---------- */
.timeline{margin-top:8px;}
.timeline li{
  position:relative;padding:0 0 30px 30px;
  border-left:2px solid var(--c-line);
}
.timeline li:last-child{border-left-color:transparent;padding-bottom:0;}
.timeline li::before{
  content:"";position:absolute;left:-8px;top:6px;width:14px;height:14px;border-radius:50%;
  background:var(--grad);border:3px solid #fff;box-shadow:0 0 0 1px var(--c-line);
}
.timeline time{display:block;font-size:13px;color:var(--c-ink-3);font-variant-numeric:tabular-nums;margin-bottom:6px;}
.timeline h3{font-size:1.0625rem;font-weight:600;line-height:1.6;margin-bottom:6px;}
.timeline p{font-size:14.5px;color:var(--c-ink-2);line-height:1.75;}
.timeline-card{
  background:#fff;border:1px solid var(--c-line);border-radius:var(--r-card);
  box-shadow:var(--sh-rest);padding:34px 34px 30px;
}

/* ---------- FAQ ---------- */
.faq-card{
  background:#fff;border:1px solid var(--c-line);border-radius:var(--r-card);
  box-shadow:var(--sh-rest);padding:10px 30px;
}
.faq-card .accordion{border:0;background:transparent;margin:0;}
.faq-card .accordion-item{border-bottom:1px solid var(--c-line);}
.faq-card .accordion-item:last-child{border-bottom:0;}
.faq-card .accordion-title{
  position:relative;border:0;background:transparent;
  padding:24px 46px 24px 0;font-size:16px;font-weight:600;color:var(--c-ink);line-height:1.6;
  transition:color .25s ease;
}
.faq-card .accordion-title:hover{color:var(--c-brand);}
.faq-card .accordion-title::before{
  content:"+";right:0;left:auto;top:50%;transform:translateY(-50%);
  font-size:24px;font-weight:400;line-height:1;color:var(--c-brand);
  transition:transform .3s ease,content .3s ease,color .3s ease;
  display:inline-flex;align-items:center;justify-content:center;width:24px;height:24px;text-align:center;
}
.faq-card .accordion-item.is-active .accordion-title::before{
  content:"−";transform:translateY(-50%) rotate(180deg);
}
.faq-card .accordion-item.is-active .accordion-title::after{
  content:"";position:absolute;left:-30px;top:14px;bottom:14px;width:4px;border-radius:4px;background:var(--grad);
}
.faq-card .accordion-content{
  border:0;background:transparent;padding:0 46px 24px 0;
  font-size:15px;line-height:1.85;color:var(--c-ink-2);
}

/* ---------- CTA 带 ---------- */
.cta-band{
  background:var(--grad);
  border-radius:32px;padding:52px 48px;color:#fff;
  display:flex;align-items:center;justify-content:space-between;gap:36px;flex-wrap:wrap;
  box-shadow:0 18px 44px rgba(91,43,224,.26);
}
.cta-band h2{font-size:clamp(1.5rem,2.4vw,2rem);font-weight:800;line-height:1.3;color:#fff;}
.cta-band p{margin-top:12px;font-size:15.5px;line-height:1.8;color:rgba(255,255,255,.9);max-width:620px;}
.cta-actions{display:flex;gap:14px;flex-wrap:wrap;}
.btn-white{background:#fff;color:var(--c-brand);}
.btn-white:hover{background:#fff;color:var(--c-brand);transform:translateY(-2px);box-shadow:0 12px 26px rgba(23,17,46,.20);}
.btn-outline-white{background:transparent;border-color:rgba(255,255,255,.65);color:#fff;}
.btn-outline-white:hover{background:rgba(255,255,255,.16);border-color:#fff;color:#fff;transform:translateY(-2px);}

/* ---------- CTA 下方联系提示 ---------- */
.contact-note{
  margin-top:40px;display:grid;grid-template-columns:repeat(3,1fr);gap:20px;
}
.contact-note .item{
  background:#fff;border:1px solid var(--c-line);border-radius:20px;padding:24px;
  box-shadow:var(--sh-rest);
}
.contact-note h3{font-size:1.0625rem;font-weight:600;margin-bottom:8px;}
.contact-note p{font-size:14.5px;color:var(--c-ink-2);line-height:1.75;}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--c-dark);color:#CFC9E4;position:relative;padding:64px 0 0;margin-top:0;}
.site-footer::before{content:"";position:absolute;top:0;left:0;right:0;height:3px;background:var(--grad);}
.footer-grid{
  display:grid;grid-template-columns:1.7fr 1fr 1fr 1.15fr;gap:40px;padding-bottom:48px;
}
.footer-brand .logo-text{color:#fff;}
.footer-desc{margin-top:16px;font-size:14.5px;line-height:1.85;color:#B9B2D4;max-width:340px;}
.social-row{display:flex;gap:12px;margin-top:20px;}
.social-row a{
  width:40px;height:40px;border-radius:12px;background:rgba(255,255,255,.08);
  display:inline-flex;align-items:center;justify-content:center;color:#CFC9E4;
  transition:background-color .25s ease,color .25s ease,transform .25s ease;
}
.social-row a:hover{background:rgba(255,255,255,.18);color:#fff;transform:translateY(-2px);}
.social-row svg{width:18px;height:18px;}
.footer-col h4{font-size:16px;font-weight:600;color:#fff;margin-bottom:18px;}
.footer-col ul{display:flex;flex-direction:column;gap:12px;}
.footer-col a{font-size:14px;color:#CFC9E4;transition:color .25s ease;}
.footer-col a:hover{color:#fff;}
.footer-contact li{font-size:14px;line-height:1.7;color:#CFC9E4;}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.08);padding:20px 0;
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13px;color:#9A93BC;
}
.footer-bottom .beian{font-size:13px;color:#9A93BC;}

/* ---------- 返回顶部 ---------- */
.back-top{
  position:fixed;right:24px;bottom:24px;width:48px;height:48px;border-radius:50%;
  display:inline-flex;align-items:center;justify-content:center;z-index:70;
  background:#fff;border:2px solid transparent;
  background-image:linear-gradient(#fff,#fff),var(--grad);
  background-origin:border-box;background-clip:padding-box,border-box;
  box-shadow:var(--sh-rest);opacity:0;pointer-events:none;
  transition:opacity .3s ease,transform .25s ease;
}
.back-top svg{width:20px;height:20px;color:var(--c-brand);}
.back-top.is-visible{opacity:1;pointer-events:auto;}
.back-top:hover{transform:translateY(-2px);}

/* ---------- 响应式 ---------- */
@media screen and (max-width:1024px){
  .nav-main{display:none;}
  .search-box{display:none;}
  .hamburger{display:inline-flex;}
  .sec-pad{padding:64px 0;}
  .page-banner{padding:44px 0 92px;}
  .banner-lead{font-size:15.5px;}
  .filter-bar{flex-wrap:nowrap;overflow-x:auto;padding-bottom:6px;-webkit-overflow-scrolling:touch;}
  .filter-bar::-webkit-scrollbar{display:none;}
  .chip{flex:0 0 auto;}
  .stat-strip{grid-template-columns:repeat(2,1fr);margin-top:-56px;}
  .sec-dark{padding:64px 0;}
  .badge-grid{margin-top:32px;}
  .cta-band{padding:40px 30px;border-radius:26px;}
  .contact-note{grid-template-columns:1fr;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
  .footer-desc{max-width:none;}
}
@media screen and (max-width:640px){
  .container{padding:0 20px;}
  .header-inner{padding:0 20px;gap:12px;}
  .logo-text{font-size:15.5px;}
  .btn{padding:0 18px;font-size:14px;}
  .header-right .btn-ghost{display:none;}
  .sec-pad{padding:52px 0;}
  .sec-dark{padding:52px 0;}
  .page-banner{padding:36px 0 84px;}
  .stat-strip{grid-template-columns:1fr;gap:12px;padding:16px;}
  .stat{padding:18px 14px;}
  .news-grid{margin-left:-8px;margin-right:-8px;}
  .news-grid > .cell{padding:0 8px;margin-bottom:20px;}
  .news-body{padding:20px;}
  .faq-card{padding:6px 20px;}
  .faq-card .accordion-title{padding:20px 42px 20px 0;font-size:15.5px;}
  .faq-card .accordion-item.is-active .accordion-title::after{left:-20px;}
  .faq-card .accordion-content{padding:0 42px 20px 0;font-size:14.5px;}
  .timeline-card{padding:24px 20px 18px;}
  .cta-band{padding:34px 22px;border-radius:22px;}
  .cta-band p{font-size:15px;}
  .cta-actions{width:100%;}
  .cta-actions .btn{flex:1 1 auto;}
  .footer-grid{grid-template-columns:1fr;gap:30px;padding-bottom:36px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;gap:8px;}
  .back-top{right:16px;bottom:16px;}
}