/* roulang page: index */
:root{
  --brand:#FF6A1F;
  --brand-dark:#E85A10;
  --brand-soft:rgba(255,106,31,.08);
  --teal:#2ED3C0;
  --teal-soft:rgba(46,211,192,.12);
  --violet:#7C5CFF;
  --ink:#1A1230;
  --ink-2:#14102A;
  --bg:#F6F5FB;
  --white:#FFFFFF;
  --t1:#171226;
  --t2:#5B5470;
  --t3:#8D87A0;
  --line:#E7E4F2;
  --ok:#1FA971;
  --warn:#F2A33C;
  --err:#E5484D;
  --inv:#FFFFFF;
  --inv-2:rgba(255,255,255,.72);
  --r-card:16px;
  --r-big:20px;
  --r-img:14px;
  --r-input:12px;
  --sh-1:0 1px 2px rgba(23,18,38,.04), 0 8px 24px rgba(23,18,38,.06);
  --sh-2:0 16px 36px rgba(23,18,38,.12);
  --sh-dark:0 20px 48px rgba(0,0,0,.35);
  --maxw:1200px;
  --font:-apple-system,"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Noto Sans SC",sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:var(--font);
  font-size:16px;
  line-height:1.85;
  color:var(--t1);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;height:auto}
a{color:var(--brand);text-decoration:none;transition:color .18s ease,border-color .18s ease}
a:hover{color:var(--brand-dark)}
button,input{font-family:inherit}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4{margin:0;line-height:1.25;font-weight:700;color:var(--t1);letter-spacing:-.01em}
p{margin:0 0 18px}
p:last-child{margin-bottom:0}
.num{font-variant-numeric:tabular-nums}
.show-for-sr,.sr-only{
  position:absolute!important;width:1px;height:1px;padding:0;overflow:hidden;
  clip:rect(0,0,0,0);white-space:nowrap;border:0;
}
.container{width:100%;max-width:var(--maxw);margin:0 auto;padding:0 32px}
.section{padding:96px 0}
.section--tight{padding:72px 0}
.bg-white{background:var(--white)}
.bg-page{background:var(--bg)}

/* ---------- Foundation 默认样式覆盖 ---------- */
body,button,input,select,textarea{font-family:var(--font)}
a.button,.button,button.button{
  background:var(--brand);color:#fff;border-radius:999px;border:0;
  font-weight:700;transition:transform .18s ease,box-shadow .18s ease,filter .18s ease;
}
a.button:hover,.button:hover,button.button:hover{background:var(--brand);filter:brightness(1.06);color:#fff}
.accordion{background:transparent;border:0;border-radius:0}
.accordion-title{border:0!important;color:var(--t1)}
.accordion-title:focus{outline:2px solid var(--brand);outline-offset:2px}
.orbit-bullets button{background-color:#D8D3E8;width:10px;height:10px;margin:0 5px}
.orbit-bullets button.is-active,.orbit-bullets button:hover{background-color:var(--brand)}
.orbit-previous,.orbit-next{background:var(--white);color:var(--t1);border-radius:50%;width:44px;height:44px;line-height:44px;box-shadow:var(--sh-1)}
.orbit-previous:hover,.orbit-next:hover,.orbit-previous:focus,.orbit-next:focus{background:var(--white);color:var(--brand)}
.callout{bargin:0;border:0;border-radius:var(--r-card);background:var(--white)}
dl,dd,dt{margin:0}

/* ---------- Header / Nav ---------- */
.site-header{
  position:sticky;top:0;z-index:80;
  padding:16px 0 0;
  background:linear-gradient(180deg,rgba(246,245,251,.98) 0%,rgba(246,245,251,.85) 62%,rgba(246,245,251,0) 100%);
  transition:padding .25s ease;
}
.site-header.is-stuck{padding-top:10px}
.nav-panel{
  display:flex;align-items:center;gap:14px;
  height:72px;padding:0 14px 0 20px;
  background:rgba(255,255,255,.92);
  border:1px solid var(--line);
  border-radius:18px;
  box-shadow:var(--sh-1);
  transition:box-shadow .25s ease,background .25s ease;
}
.site-header.is-stuck .nav-panel{box-shadow:var(--sh-2);background:rgba(255,255,255,.97);backdrop-filter:blur(10px)}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto;color:var(--t1)}
.brand:hover{color:var(--t1)}
.brand-mark{width:36px;height:36px;flex:0 0 36px}
.brand-text{display:flex;flex-direction:column;line-height:1.1}
.brand-name{font-size:19px;font-weight:800;letter-spacing:-.02em}
.brand-sub{font-size:11px;color:var(--t3);letter-spacing:.14em;font-weight:500;margin-top:3px}
.nav-links{display:flex;align-items:center;gap:6px;margin-left:auto}
.nav-link{
  display:inline-flex;align-items:center;gap:8px;
  padding:10px 14px;border-radius:12px;
  font-size:15px;font-weight:500;color:var(--t2);
  transition:background .18s ease,color .18s ease,transform .18s ease;
}
.nav-link i{font-size:15px;color:var(--t3);transition:color .18s ease}
.nav-link:hover{background:var(--bg);color:var(--t1);transform:translateY(-2px)}
.nav-link:hover i{color:var(--brand)}
.nav-link.active{background:var(--brand-soft);color:var(--brand)}
.nav-link.active i{color:var(--brand)}
.nav-actions{display:flex;align-items:center;gap:10px;margin-left:14px}
.nav-toggle{
  display:none;width:44px;height:44px;border-radius:12px;
  border:1px solid var(--line);background:var(--white);color:var(--t1);
  align-items:center;justify-content:center;font-size:17px;cursor:pointer;
  transition:background .18s ease,color .18s ease;
}
.nav-toggle:hover{background:var(--bg);color:var(--brand)}

/* 移动抽屉 */
.nav-drawer{
  position:fixed;inset:0;z-index:120;
  background:rgba(26,18,48,.97);
  backdrop-filter:blur(6px);
  padding:80px 24px 28px;
  display:none;
  flex-direction:column;
}
.nav-drawer.open{display:flex}
.drawer-close{
  position:absolute;top:22px;right:22px;
  width:44px;height:44px;border-radius:50%;
  background:rgba(255,255,255,.1);border:1px solid rgba(255,255,255,.24);
  color:#fff;font-size:18px;cursor:pointer;
}
.drawer-brand{color:#fff;font-size:20px;font-weight:800;margin-bottom:22px}
.drawer-grid{display:grid;grid-template-columns:1fr 1fr;gap:12px}
.drawer-card{
  display:flex;flex-direction:column;gap:8px;
  padding:16px;border-radius:14px;
  background:rgba(255,255,255,.07);
  border:1px solid rgba(255,255,255,.12);
  color:#fff;font-size:15px;font-weight:600;
}
.drawer-card i{color:var(--teal);font-size:18px}
.drawer-card:hover{color:#fff;background:rgba(255,255,255,.13)}
.drawer-foot{margin-top:auto;display:flex;flex-direction:column;gap:12px;padding-top:24px}
body.drawer-open{overflow:hidden}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:9px;
  padding:13px 28px;border-radius:999px;
  font-size:15px;font-weight:700;line-height:1;
  border:1px solid transparent;cursor:pointer;white-space:nowrap;
  transition:transform .18s ease,box-shadow .18s ease,background .18s ease,color .18s ease,border-color .18s ease,filter .18s ease;
}
.btn i{font-size:15px}
.btn-primary{background:var(--brand);color:#fff;box-shadow:0 8px 20px rgba(255,106,31,.28)}
.btn-primary:hover{background:var(--brand);color:#fff;filter:brightness(1.06);transform:translateY(-2px);box-shadow:0 14px 28px rgba(255,106,31,.34)}
.btn-primary:active{transform:translateY(0)}
.btn-ghost{background:transparent;border-color:var(--line);color:var(--t1)}
.btn-ghost:hover{border-color:var(--brand);color:var(--brand);transform:translateY(-2px)}
.btn-ghost-dark{background:transparent;border-color:rgba(255,255,255,.28);color:#fff}
.btn-ghost-dark:hover{border-color:var(--brand);color:var(--brand);transform:translateY(-2px)}
.btn-teal{background:transparent;border-color:var(--teal);color:var(--teal)}
.btn-teal:hover{background:var(--teal-soft);color:var(--teal);transform:translateY(-2px)}
.btn:focus-visible,a:focus-visible,button:focus-visible{outline:2px solid var(--brand);outline-offset:2px}
.btn-lg{padding:16px 34px;font-size:16px}
.btn-block{width:100%}

/* ---------- 徽章 / 标签 ---------- */
.badge{
  display:inline-flex;align-items:center;gap:6px;
  padding:5px 12px;border-radius:999px;
  font-size:12px;font-weight:600;line-height:1.6;
  background:var(--teal-soft);color:#12897A;
}
.badge-brand{background:var(--brand-soft);color:var(--brand)}
.badge-line{background:transparent;border:1px solid var(--line);color:var(--t2)}
.badge-dark{background:rgba(255,255,255,.12);color:#fff}

/* ---------- Hero ---------- */
.hero-wrap{padding-top:28px}
.hero{
  position:relative;overflow:hidden;
  background:radial-gradient(120% 100% at 88% 6%,#2A1D4E 0%,var(--ink) 46%,var(--ink-2) 100%);
  border-radius:28px;
  padding:72px 56px 64px;
  color:#fff;
}
.hero::before{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:
    radial-gradient(2px 2px at 12% 22%,rgba(255,255,255,.75),transparent 60%),
    radial-gradient(2px 2px at 32% 68%,rgba(255,255,255,.55),transparent 60%),
    radial-gradient(1.5px 1.5px at 58% 18%,rgba(255,255,255,.6),transparent 60%),
    radial-gradient(1.5px 1.5px at 76% 74%,rgba(255,255,255,.5),transparent 60%),
    radial-gradient(2px 2px at 88% 34%,rgba(46,211,192,.6),transparent 60%);
  opacity:.55;
}
.hero-orbit{
  position:absolute;top:-70px;right:-60px;width:420px;height:420px;
  opacity:.18;pointer-events:none;
}
.hero-inner{position:relative;z-index:2}
.hero h1{
  color:#fff;
  font-size:clamp(30px,4vw,52px);
  line-height:1.15;font-weight:800;letter-spacing:-.02em;
  margin:18px 0 20px;
}
.hero-lead{
  color:var(--inv-2);font-size:clamp(15px,1.4vw,17px);
  line-height:1.9;max-width:560px;margin-bottom:28px;
}
.hero-cta{display:flex;flex-wrap:wrap;gap:12px;margin-bottom:26px}
.hero-meta{
  display:flex;flex-wrap:wrap;gap:22px;
  padding-top:22px;border-top:1px solid rgba(255,255,255,.14);
  font-size:13px;color:rgba(255,255,255,.66);
}
.hero-meta span{display:inline-flex;align-items:center;gap:7px}
.hero-meta i{color:var(--teal);font-size:13px}
.phone-mock{
  width:100%;max-width:296px;margin:0 auto;
  border-radius:28px;border:8px solid #0C0818;
  box-shadow:var(--sh-dark);overflow:hidden;background:#0C0818;
  aspect-ratio:9/17;
}
.phone-mock img{width:100%;height:100%;object-fit:cover;border-radius:20px}
.phone-note{
  margin-top:16px;text-align:center;font-size:13px;color:rgba(255,255,255,.6);
}

/* ---------- 信任条 ---------- */
.trust-bar{
  display:grid;grid-template-columns:repeat(4,1fr);gap:16px;
  margin-top:-32px;position:relative;z-index:3;
}
.trust-item{
  display:flex;align-items:center;gap:12px;
  min-height:72px;padding:14px 20px;
  background:var(--white);border:1px solid var(--line);border-radius:var(--r-card);
  box-shadow:var(--sh-1);
}
.trust-item i{font-size:19px;color:var(--brand)}
.trust-item strong{display:block;font-size:15px;font-weight:700;color:var(--t1);line-height:1.4}
.trust-item span{font-size:13px;color:var(--t3)}

/* ---------- 板块标题 ---------- */
.sec-head{margin-bottom:44px;max-width:720px}
.sec-head.center{margin-left:auto;margin-right:auto;text-align:center}
.sec-tag{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;font-weight:700;color:var(--brand);
  margin-bottom:14px;letter-spacing:.02em;
}
.sec-tag::before{content:"";width:22px;height:3px;border-radius:2px;background:var(--brand)}
.sec-head.center .sec-tag::after{content:"";width:22px;height:3px;border-radius:2px;background:var(--brand)}
.sec-head h2{font-size:clamp(26px,3vw,36px);line-height:1.25;font-weight:700;margin-bottom:14px}
.sec-head p{color:var(--t2);font-size:16px}

/* ---------- 应用价值 4 项 ---------- */
.value-row{display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:center;padding:36px 0}
.value-row + .value-row{border-top:1px solid var(--line)}
.value-row:nth-child(even) .value-media{order:-1}
.value-index{
  font-size:44px;font-weight:800;line-height:1;letter-spacing:-.03em;
  color:transparent;-webkit-text-stroke:1.5px rgba(255,106,31,.5);
  font-variant-numeric:tabular-nums;margin-bottom:14px;
}
.value-row h3{font-size:clamp(21px,2.2vw,24px);margin-bottom:12px;line-height:1.35}
.value-row p{color:var(--t2);margin-bottom:18px}
.value-points li{
  display:flex;align-items:flex-start;gap:10px;
  font-size:15px;color:var(--t2);padding:5px 0;
}
.value-points li i{color:var(--teal);font-size:14px;margin-top:6px}
.value-media{
  border-radius:var(--r-big);overflow:hidden;background:var(--white);
  border:1px solid var(--line);box-shadow:var(--sh-1);
}
.value-media img{width:100%;aspect-ratio:16/10;object-fit:cover;border-radius:var(--r-big)}

/* ---------- 截图轮播 ---------- */
.shots{background:var(--ink);border-radius:28px;padding:64px 48px;position:relative;overflow:hidden}
.shots::after{
  content:"";position:absolute;left:-40px;bottom:-90px;width:340px;height:340px;
  background:radial-gradient(circle,rgba(124,92,255,.35),transparent 68%);
  opacity:.16;pointer-events:none;
}
.shots .sec-head{position:relative;z-index:2}
.shots .sec-head h2{color:#fff}
.shots .sec-head p{color:var(--inv-2)}
.shots .sec-tag{color:var(--teal)}
.shots .sec-tag::before{background:var(--teal)}
.shot-slide{background:transparent;padding:0}
.shot-card{
  background:rgba(255,255,255,.05);
  border:1px solid rgba(255,255,255,.14);
  border-radius:var(--r-big);
  padding:16px;text-align:center;
}
.shot-card img{width:100%;aspect-ratio:16/9;object-fit:cover;border-radius:var(--r-img)}
.shot-card h3{color:#fff;font-size:17px;margin:16px 0 6px;font-weight:600}
.shot-card p{color:rgba(255,255,255,.62);font-size:13.5px;margin:0}
.shots .orbit-wrapper{margin-bottom:8px}

/* ---------- 系统要求 ---------- */
.platform-card{
  height:100%;
  background:var(--white);border:1px solid var(--line);border-radius:var(--r-big);
  padding:28px;box-shadow:var(--sh-1);
  transition:transform .2s ease,box-shadow .2s ease;
}
.platform-card:hover{transform:translateY(-3px);box-shadow:var(--sh-2)}
.platform-head{display:flex;align-items:center;gap:12px;margin-bottom:20px}
.platform-head i{font-size:22px;color:var(--brand)}
.platform-head h3{font-size:20px}
.platform-card dl dt{
  font-size:13px;color:var(--t3);padding-top:14px;
}
.platform-card dl dt:first-child{padding-top:0}
.platform-card dl dd{
  font-size:15px;color:var(--t1);font-weight:600;
  padding-bottom:14px;border-bottom:1px solid var(--line);
  font-variant-numeric:tabular-nums;
}
.platform-card dl dd:last-child{border-bottom:0;padding-bottom:0}
.req-note{
  margin-top:24px;padding:16px 20px;border-radius:var(--r-card);
  background:var(--brand-soft);color:#8A3D0E;font-size:14px;
  display:flex;gap:10px;align-items:flex-start;
}
.req-note i{margin-top:5px;color:var(--brand)}

/* ---------- 评价墙 ---------- */
.review-grid{column-count:2;column-gap:24px}
.review-card{
  break-inside:avoid;margin-bottom:24px;
  background:var(--white);border:1px solid var(--line);border-radius:var(--r-card);
  padding:24px;box-shadow:var(--sh-1);
  transition:transform .2s ease,box-shadow .2s ease;
}
.review-card:hover{transform:translateY(-3px);box-shadow:var(--sh-2)}
.review-top{display:flex;align-items:center;gap:12px;margin-bottom:14px}
.avatar{
  width:40px;height:40px;flex:0 0 40px;border-radius:50%;
  display:flex;align-items:center;justify-content:center;
  background:linear-gradient(135deg,var(--brand),var(--violet));
  color:#fff;font-weight:700;font-size:15px;
}
.review-name{font-weight:700;font-size:15px;line-height:1.4}
.review-meta{font-size:12.5px;color:var(--t3)}
.stars{display:flex;gap:3px;color:var(--warn);font-size:13px;margin-bottom:12px}
.review-card blockquote{margin:0 0 14px;padding:0;border:0;font-size:15px;color:var(--t2);line-height:1.85}
.review-date{font-size:12.5px;color:var(--t3);font-variant-numeric:tabular-nums}

/* ---------- 资讯列表 ---------- */
.sec-head-row{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:40px}
.sec-head-row .sec-head{margin-bottom:0}
.more-link{font-size:15px;font-weight:600;color:var(--brand);display:inline-flex;align-items:center;gap:7px;white-space:nowrap}
.more-link:hover{gap:11px}
.news-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.news-card{
  display:flex;flex-direction:column;
  background:var(--white);border:1px solid var(--line);border-radius:var(--r-card);
  overflow:hidden;box-shadow:var(--sh-1);color:var(--t1);
  transition:transform .2s ease,box-shadow .2s ease;
}
.news-card:hover{transform:translateY(-4px);box-shadow:var(--sh-2);color:var(--t1)}
.news-card img{width:100%;aspect-ratio:16/9;object-fit:cover}
.news-body{padding:20px 22px 22px;display:flex;flex-direction:column;flex:1}
.news-body h3{
  font-size:17px;line-height:1.5;font-weight:700;margin:12px 0 10px;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.news-body p{
  font-size:14px;color:var(--t2);line-height:1.8;margin-bottom:18px;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.news-foot{
  margin-top:auto;padding-top:14px;border-top:1px solid var(--line);
  display:flex;align-items:center;justify-content:space-between;
  font-size:13px;color:var(--t3);font-variant-numeric:tabular-nums;
}
.news-foot i{color:var(--brand);transition:transform .2s ease}
.news-card:hover .news-foot i{transform:translateX(4px)}
.news-card--lead{grid-row:span 1}
.news-empty{
  grid-column:1/-1;text-align:center;padding:56px 24px;
  background:var(--white);border:1px dashed var(--line);border-radius:var(--r-card);
}
.news-empty i{font-size:30px;color:var(--t3);margin-bottom:14px;display:block}
.news-empty p{color:var(--t2);margin-bottom:20px}

/* ---------- 下载 CTA ---------- */
.dl-cta{
  position:relative;overflow:hidden;
  background:radial-gradient(110% 100% at 12% 8%,#2A1D4E 0%,var(--ink) 50%,var(--ink-2) 100%);
  border-radius:28px;padding:64px 56px;color:#fff;
}
.dl-cta::before{
  content:"";position:absolute;inset:0;pointer-events:none;opacity:.5;
  background-image:
    radial-gradient(2px 2px at 18% 30%,rgba(255,255,255,.7),transparent 60%),
    radial-gradient(1.5px 1.5px at 44% 72%,rgba(255,255,255,.55),transparent 60%),
    radial-gradient(2px 2px at 72% 26%,rgba(46,211,192,.6),transparent 60%);
}
.dl-cta h2{color:#fff;font-size:clamp(26px,3vw,36px);margin-bottom:14px}
.dl-cta p{color:var(--inv-2);max-width:520px;margin-bottom:26px}
.dl-cta .inner{position:relative;z-index:2}
.dl-buttons{display:flex;flex-wrap:wrap;gap:12px}
.qr-card{
  width:132px;background:#fff;border-radius:16px;padding:12px;
  box-shadow:var(--sh-dark);text-align:center;
}
.qr-card .qr-box{
  width:108px;height:108px;border-radius:10px;
  background:
    linear-gradient(90deg,var(--ink) 8px,transparent 8px) 0 0/16px 16px,
    linear-gradient(0deg,var(--ink) 8px,transparent 8px) 0 0/16px 16px,
    #fff;
  background-blend-mode:multiply;
  margin:0 auto 8px;
  position:relative;
  border:1px solid var(--line);
}
.qr-card .qr-box::after{
  content:"\f029";font-family:"Font Awesome 6 Free";font-weight:900;
  position:absolute;inset:0;display:flex;align-items:center;justify-content:center;
  font-size:22px;color:var(--brand);background:#fff;width:34px;height:34px;margin:auto;border-radius:8px;
}
.qr-card span{font-size:12px;color:var(--t2);line-height:1.5;display:block}

/* ---------- FAQ ---------- */
.faq-list{max-width:840px;margin:0 auto}
.faq-list .accordion-item{
  border:1px solid var(--line);border-radius:var(--r-card);
  background:var(--white);margin-bottom:14px;overflow:hidden;
  box-shadow:var(--sh-1);
}
.faq-list .accordion-title{
  display:flex;align-items:center;gap:14px;
  padding:20px 24px;font-size:16.5px;font-weight:700;color:var(--t1);
  border:0;background:transparent;
}
.faq-list .accordion-title::before{
  content:"\f059";font-family:"Font Awesome 6 Free";font-weight:900;
  color:var(--brand);font-size:15px;flex:0 0 auto;
}
.faq-list .accordion-title::after{
  content:"\f078";font-family:"Font Awesome 6 Free";font-weight:900;
  margin-left:auto;color:var(--t3);font-size:13px;transition:transform .2s ease;
}
.faq-list .accordion-item.is-active .accordion-title::after{transform:rotate(180deg);color:var(--brand)}
.faq-list .accordion-content{padding:0 24px 22px 60px;color:var(--t2);font-size:15px;border:0!important;background:transparent}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--ink);color:rgba(255,255,255,.72);margin-top:96px}
.footer-top{padding:72px 0 48px}
.footer-brand{display:flex;align-items:center;gap:11px;margin-bottom:16px}
.footer-brand .brand-name{color:#fff;font-size:19px;font-weight:800}
.footer-brand .brand-sub{color:rgba(255,255,255,.5)}
.footer-about{font-size:14.5px;line-height:1.9;max-width:360px;color:rgba(255,255,255,.66)}
.footer-col h4{color:#fff;font-size:15px;font-weight:700;margin-bottom:16px}
.footer-col li{margin-bottom:11px}
.footer-col a{color:rgba(255,255,255,.68);font-size:14.5px}
.footer-col a:hover{color:var(--brand)}
.footer-bottom{
  background:var(--ink-2);padding:20px 0;
  font-size:13px;color:rgba(255,255,255,.5);
}
.footer-bottom .inner{display:flex;flex-wrap:wrap;gap:14px;align-items:center;justify-content:space-between}
.footer-bottom a{color:rgba(255,255,255,.6)}
.footer-bottom a:hover{color:var(--brand)}

/* ---------- 响应式 ---------- */
@media screen and (max-width:1023px){
  .container{padding:0 24px}
  .section{padding:72px 0}
  .nav-links{display:none}
  .nav-actions .btn{display:none}
  .nav-toggle{display:inline-flex}
  .nav-panel{height:66px;padding:0 12px 0 16px}
  .hero{padding:56px 36px 48px;border-radius:24px}
  .trust-bar{grid-template-columns:repeat(2,1fr);margin-top:20px}
  .value-row{grid-template-columns:1fr;gap:28px;padding:28px 0}
  .value-row:nth-child(even) .value-media{order:0}
  .shots{padding:48px 28px;border-radius:24px}
  .review-grid{column-count:1}
  .news-grid{grid-template-columns:repeat(2,1fr)}
  .dl-cta{padding:48px 32px;border-radius:24px}
}
@media screen and (max-width:639px){
  .container{padding:0 20px}
  .section{padding:56px 0}
  .site-header{padding-top:10px}
  .brand-name{font-size:17px}
  .brand-sub{font-size:10px;letter-spacing:.1em}
  .hero{padding:44px 22px 40px;border-radius:20px}
  .hero h1{margin:14px 0 16px}
  .hero-cta .btn{flex:1 1 100%}
  .hero-meta{gap:14px 18px;font-size:12.5px}
  .trust-bar{grid-template-columns:1fr;gap:12px}
  .trust-item{min-height:64px;padding:12px 16px}
  .sec-head{margin-bottom:32px}
  .sec-head-row{flex-direction:column;align-items:flex-start;gap:12px}
  .value-index{font-size:36px}
  .news-grid{grid-template-columns:1fr}
  .shots{padding:40px 18px;border-radius:20px}
  .dl-cta{padding:40px 22px;border-radius:20px}
  .dl-buttons .btn{width:100%}
  .qr-card{margin-top:8px}
  .faq-list .accordion-title{padding:16px 18px;font-size:15.5px}
  .faq-list .accordion-content{padding:0 18px 18px 48px}
  .footer-top{padding:52px 0 36px}
  .site-footer{margin-top:56px}
  .orbit-previous,.orbit-next{width:38px;height:38px;line-height:38px}
}

/* roulang page: article */
:root{
  --orange:#FF6A1F;
  --orange-soft:rgba(255,106,31,.08);
  --teal:#2ED3C0;
  --teal-soft:rgba(46,211,192,.12);
  --purple:#7C5CFF;
  --ink:#171226;
  --ink-2:#5B5470;
  --ink-3:#8D87A0;
  --line:#E7E4F2;
  --bg:#F6F5FB;
  --white:#FFFFFF;
  --dark:#1A1230;
  --dark-2:#14102A;
  --ok:#1FA971;
  --warn:#F2A33C;
  --err:#E5484D;
  --r-card:16px;
  --r-big:20px;
  --r-img:14px;
  --r-input:12px;
  --sh-1:0 1px 2px rgba(23,18,38,.04),0 8px 24px rgba(23,18,38,.06);
  --sh-2:0 16px 36px rgba(23,18,38,.12);
  --sh-dark:0 20px 48px rgba(0,0,0,.35);
  --sp-1:4px;--sp-2:8px;--sp-3:12px;--sp-4:16px;--sp-5:24px;--sp-6:32px;--sp-7:48px;--sp-8:64px;--sp-9:96px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:-apple-system,"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Noto Sans SC",sans-serif;
  font-size:16px;line-height:1.85;color:var(--ink);background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;height:auto;display:block}
a{color:var(--ink);text-decoration:none;transition:color .18s ease}
a:hover{color:var(--orange)}
button{font-family:inherit}
input,textarea,select{font-family:inherit;border-radius:var(--r-input)}
h1,h2,h3,h4{margin:0;color:var(--ink)}
p{margin:0}
ul{margin:0;padding:0;list-style:none}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 32px}
.num{font-variant-numeric:tabular-nums}
a:focus-visible,button:focus-visible,input:focus-visible{outline:2px solid var(--orange);outline-offset:2px}

/* ---------- 导航面板 ---------- */
.site-header{padding-top:16px;position:relative;z-index:60;background:transparent}
.site-header.is-stuck{position:sticky;top:0;padding-top:10px;padding-bottom:10px}
.nav-panel{
  display:flex;align-items:center;gap:24px;
  height:72px;padding:0 18px;background:var(--white);
  border:1px solid var(--line);border-radius:18px;box-shadow:var(--sh-1);
  transition:box-shadow .22s ease,background .22s ease;
}
.site-header.is-stuck .nav-panel{box-shadow:var(--sh-2);background:rgba(255,255,255,.96)}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto}
.brand-mark{width:38px;height:38px;flex:0 0 auto}
.brand-text{display:flex;flex-direction:column;line-height:1.15}
.brand-name{font-size:19px;font-weight:800;letter-spacing:.2px;color:var(--ink)}
.brand-sub{font-size:11px;color:var(--ink-3);letter-spacing:.6px}
.nav-links{display:flex;align-items:center;gap:6px;margin-left:auto}
.nav-link{
  display:inline-flex;align-items:center;gap:8px;
  padding:10px 14px;border-radius:12px;font-size:15px;color:var(--ink-2);
  transition:background .18s ease,color .18s ease,transform .18s ease;
}
.nav-link i{font-size:15px;color:var(--ink-3);transition:color .18s ease}
.nav-link:hover{background:var(--bg);color:var(--ink);transform:translateY(-2px)}
.nav-link:hover i{color:var(--orange)}
.nav-link.active{background:var(--orange-soft);color:var(--orange)}
.nav-link.active i{color:var(--orange)}
.nav-actions{display:flex;align-items:center;gap:12px;flex:0 0 auto}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  font-weight:700;cursor:pointer;border:1.5px solid transparent;
  transition:background .18s ease,color .18s ease,border-color .18s ease,transform .18s ease,box-shadow .18s ease;
}
.btn-primary{
  background:var(--orange);color:#fff;border-radius:999px;height:46px;padding:0 26px;font-size:15px;
  box-shadow:0 6px 18px rgba(255,106,31,.28);
}
.btn-primary:hover{background:#FF7C3B;color:#fff;transform:translateY(-2px);box-shadow:0 12px 26px rgba(255,106,31,.34)}
.btn-primary:active{transform:translateY(0)}
.btn-ghost{
  background:transparent;color:var(--ink);border-color:var(--line);border-radius:12px;height:46px;padding:0 22px;font-size:15px;
}
.btn-ghost:hover{border-color:var(--orange);color:var(--orange)}
.btn-ghost-light{background:transparent;color:#fff;border-color:rgba(255,255,255,.3);border-radius:12px;height:46px;padding:0 22px}
.btn-ghost-light:hover{border-color:var(--orange);color:var(--orange)}
.btn-sm{height:42px;padding:0 20px;font-size:14px}
.nav-actions .btn-primary{height:44px}
.nav-toggle{
  display:none;width:44px;height:44px;border-radius:50%;
  border:1px solid var(--line);background:var(--white);color:var(--ink);font-size:17px;cursor:pointer;
}
.nav-toggle:hover{background:var(--bg)}

/* ---------- 抽屉 ---------- */
.drawer-mask{
  position:fixed;inset:0;background:rgba(26,18,48,.55);opacity:0;visibility:hidden;
  transition:opacity .24s ease,visibility .24s ease;z-index:90;
}
.drawer-mask.open{opacity:1;visibility:visible}
.drawer{
  position:fixed;top:0;right:0;bottom:0;width:86%;max-width:360px;
  background:var(--dark);z-index:100;transform:translateX(102%);
  transition:transform .28s cubic-bezier(.22,.68,.36,1);
  display:flex;flex-direction:column;padding:22px 20px;
}
.drawer.open{transform:translateX(0)}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:18px}
.drawer-head .brand-name{color:#fff}
.drawer-head .brand-sub{color:rgba(255,255,255,.55)}
.drawer-close{width:40px;height:40px;border-radius:50%;border:1px solid rgba(255,255,255,.24);background:transparent;color:#fff;font-size:16px;cursor:pointer}
.drawer-grid{display:grid;grid-template-columns:1fr 1fr;gap:12px}
.drawer-item{
  display:flex;flex-direction:column;gap:10px;padding:14px;border-radius:14px;
  background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.1);color:#fff;font-size:14px;font-weight:600;
}
.drawer-item i{color:var(--teal);font-size:16px}
.drawer-item:hover{background:rgba(255,255,255,.12);color:#fff}
.drawer-foot{margin-top:auto;display:flex;flex-direction:column;gap:10px}
.drawer-foot .btn-primary{width:100%}
.drawer-foot .btn-ghost-light{width:100%}

/* ---------- 面包屑 ---------- */
.crumb-bar{background:var(--white);border-bottom:1px solid var(--line);margin-top:18px}
.crumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:14px;color:var(--ink-3);padding:14px 0}
.crumb a{color:var(--ink-2)}
.crumb a:hover{color:var(--orange)}
.crumb .sep{color:var(--line)}
.crumb .here{color:var(--ink-3);max-width:52ch;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}

/* ---------- 文章头部 ---------- */
.article-hero{background:var(--white);padding:48px 0 40px}
.article-hero .inner{max-width:860px}
.article-hero h1{font-size:clamp(30px,3.4vw,40px);line-height:1.3;font-weight:800;letter-spacing:-.2px}
.article-meta{display:flex;flex-wrap:wrap;align-items:center;gap:14px;margin-top:20px;font-size:14px;color:var(--ink-3)}
.badge{
  display:inline-flex;align-items:center;gap:6px;padding:5px 12px;border-radius:999px;
  font-size:12px;font-weight:700;background:var(--teal-soft);color:#158C80;letter-spacing:.2px;
}
.badge-orange{background:var(--orange-soft);color:#C24B0D}
.meta-item{display:inline-flex;align-items:center;gap:7px}
.meta-item i{color:var(--ink-3);font-size:13px}

/* ---------- 正文 ---------- */
.article-wrap{padding:56px 0 72px}
.article-card{
  background:var(--white);border:1px solid var(--line);border-radius:var(--r-big);
  box-shadow:var(--sh-1);padding:48px 56px;max-width:860px;margin:0 auto;
}
.article-body{max-width:760px;margin:0 auto;font-size:17px;line-height:1.9;color:#241C38}
.article-body p{margin:0 0 20px}
.article-body h2{
  position:relative;font-size:clamp(24px,2.6vw,30px);line-height:1.35;font-weight:700;
  margin:40px 0 18px;padding-left:16px;
}
.article-body h2::before{
  content:"";position:absolute;left:0;top:.22em;bottom:.22em;width:4px;border-radius:4px;background:var(--orange);
}
.article-body h3{font-size:clamp(20px,2vw,24px);font-weight:700;margin:32px 0 12px}
.article-body h4{font-size:18px;font-weight:600;margin:24px 0 10px}
.article-body ul,.article-body ol{margin:0 0 20px;padding-left:4px}
.article-body ul li,.article-body ol li{
  position:relative;padding-left:22px;margin-bottom:10px;list-style:none;
}
.article-body ul li::before{
  content:"";position:absolute;left:2px;top:.72em;width:7px;height:7px;border-radius:50%;background:var(--orange);
}
.article-body ol{counter-reset:li}
.article-body ol li{counter-increment:li}
.article-body ol li::before{
  content:counter(li);position:absolute;left:0;top:0;color:var(--orange);font-weight:800;font-size:15px;
}
.article-body blockquote{
  margin:24px 0;padding:18px 22px;background:var(--bg);
  border-left:4px solid var(--orange);border-radius:0 12px 12px 0;color:var(--ink-2);font-size:16px;
}
.article-body blockquote p:last-child{margin-bottom:0}
.article-body img{border-radius:var(--r-img);margin:24px 0;width:100%}
.article-body a{color:var(--orange);text-decoration:underline;text-underline-offset:3px}
.article-body a:hover{color:#C24B0D}
.article-body strong{font-weight:700;color:var(--ink)}
.article-body code{
  background:var(--bg);border:1px solid var(--line);border-radius:6px;padding:2px 6px;font-size:15px;
  font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;
}
.article-body pre{
  background:var(--dark);color:rgba(255,255,255,.9);border-radius:12px;padding:16px;overflow-x:auto;margin:24px 0;
}
.article-body pre code{background:none;border:0;color:inherit;padding:0}
.article-body table{width:100%;border-collapse:separate;border-spacing:0;margin:24px 0;font-size:15px;border:1px solid var(--line);border-radius:12px;overflow:hidden}
.article-body thead th{background:var(--bg);font-weight:700;text-align:left}
.article-body th,.article-body td{padding:12px 16px;border-bottom:1px solid var(--line)}
.article-body tbody tr:nth-child(even){background:#FBFAFE}
.article-body tbody tr:last-child td{border-bottom:0}
.article-body hr{border:0;border-top:1px solid var(--line);margin:32px 0}
.empty-state{max-width:760px;margin:0 auto;text-align:center;padding:32px 0}
.empty-state i{font-size:40px;color:var(--ink-3)}
.empty-state h3{margin:18px 0 8px;font-size:22px}
.empty-state p{color:var(--ink-2);margin-bottom:22px}

/* ---------- 文末操作 ---------- */
.article-foot{
  max-width:860px;margin:28px auto 0;padding:22px 26px;background:var(--white);
  border:1px solid var(--line);border-radius:var(--r-card);box-shadow:var(--sh-1);
  display:flex;flex-wrap:wrap;align-items:center;gap:16px;justify-content:space-between;
}
.share-row{display:flex;align-items:center;gap:10px;font-size:14px;color:var(--ink-3)}
.icon-btn{
  width:44px;height:44px;border-radius:50%;border:1px solid var(--line);background:var(--white);
  color:var(--ink-2);font-size:16px;display:inline-flex;align-items:center;justify-content:center;cursor:pointer;
  transition:background .18s ease,color .18s ease,border-color .18s ease,transform .18s ease;
}
.icon-btn:hover{background:var(--bg);color:var(--orange);border-color:var(--orange);transform:translateY(-2px)}

/* ---------- 导航卡 / 相关推荐 ---------- */
.section{padding:56px 0}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;margin-bottom:28px;flex-wrap:wrap}
.section-head h2{font-size:clamp(24px,2.6vw,32px);font-weight:700;line-height:1.25}
.section-head .lead{color:var(--ink-2);font-size:15px;max-width:620px;margin-top:10px}
.text-link{color:var(--orange);font-weight:700;font-size:15px;display:inline-flex;align-items:center;gap:6px}
.text-link:hover{color:#C24B0D}
.card-grid{display:grid;gap:24px;grid-template-columns:repeat(3,minmax(0,1fr))}
.card{
  display:flex;flex-direction:column;background:var(--white);border:1px solid var(--line);
  border-radius:var(--r-card);box-shadow:var(--sh-1);overflow:hidden;
  transition:transform .2s ease,box-shadow .2s ease;
}
.card:hover{transform:translateY(-4px);box-shadow:var(--sh-2)}
.card-media{aspect-ratio:16/9;overflow:hidden;background:var(--bg)}
.card-media img{width:100%;height:100%;object-fit:cover;transition:transform .4s ease}
.card:hover .card-media img{transform:scale(1.04)}
.card-body{padding:20px 22px 22px;display:flex;flex-direction:column;gap:12px;flex:1}
.card-body h3{font-size:19px;line-height:1.4;font-weight:700}
.card-body p{font-size:14px;line-height:1.75;color:var(--ink-2)}
.card-foot{margin-top:auto;display:flex;align-items:center;justify-content:space-between;font-size:13px;color:var(--ink-3)}
.card-foot .go{color:var(--orange);font-weight:700}

/* ---------- CTA ---------- */
.cta-band{
  position:relative;overflow:hidden;background:var(--dark);border-radius:var(--r-big);
  padding:56px 48px;color:#fff;box-shadow:var(--sh-dark);
}
.cta-band::after{
  content:"";position:absolute;right:-90px;top:-70px;width:320px;height:320px;border-radius:50%;
  background:radial-gradient(circle,rgba(124,92,255,.28),transparent 68%);opacity:.9;pointer-events:none;
}
.cta-band h2{color:#fff;font-size:clamp(24px,2.8vw,32px);line-height:1.25}
.cta-band p{color:rgba(255,255,255,.72);margin-top:14px;max-width:620px;font-size:15px}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:28px;position:relative;z-index:2}
.cta-actions .btn-primary{height:50px;padding:0 28px}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--dark);color:rgba(255,255,255,.72);margin-top:72px}
.footer-top{padding:64px 0 44px}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px}
.footer-brand .brand-name{color:#fff}
.footer-brand .brand-sub{color:rgba(255,255,255,.5)}
.footer-about{font-size:14px;line-height:1.8;color:rgba(255,255,255,.6);max-width:420px}
.footer-col h4{font-size:15px;color:#fff;font-weight:700;margin-bottom:16px;letter-spacing:.3px}
.footer-col ul li{margin-bottom:11px}
.footer-col ul li a{font-size:14px;color:rgba(255,255,255,.66)}
.footer-col ul li a:hover{color:var(--orange)}
.footer-bottom{background:var(--dark-2);border-top:1px solid rgba(255,255,255,.08);padding:20px 0}
.footer-bottom .inner{display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;font-size:13px;color:rgba(255,255,255,.48)}

/* ---------- 响应式 ---------- */
@media (max-width:1023px){
  .container{padding:0 24px}
  .nav-links{display:none}
  .nav-toggle{display:inline-flex;align-items:center;justify-content:center}
  .nav-actions .btn-primary{display:none}
  .nav-panel{height:66px;padding:0 14px}
  .article-card{padding:36px 32px}
  .card-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .cta-band{padding:44px 32px}
  .section{padding:48px 0}
  .article-wrap{padding:40px 0 56px}
}
@media (max-width:639px){
  .container{padding:0 20px}
  .brand-name{font-size:17px}
  .brand-mark{width:34px;height:34px}
  .article-hero{padding:32px 0 26px}
  .article-card{padding:26px 20px;border-radius:var(--r-card)}
  .article-body{font-size:16.5px}
  .article-body h2{margin-top:32px}
  .article-body table{display:block;overflow-x:auto;white-space:nowrap}
  .card-grid{grid-template-columns:1fr}
  .section{padding:40px 0}
  .cta-band{padding:34px 22px;border-radius:var(--r-card)}
  .cta-actions .btn{width:100%}
  .footer-top{padding:48px 0 32px}
  .article-foot{padding:18px 18px}
  .crumb .here{max-width:38vw}
  .section-head{margin-bottom:22px}
}
@media (min-width:1440px){
  .container{max-width:1200px}
}

/* roulang page: category2 */
:root{
  --brand:#FF6A1F;
  --brand-dark:#E85A12;
  --cyan:#2ED3C0;
  --violet:#7C5CFF;
  --deep:#1A1230;
  --deep-2:#14102A;
  --bg:#F6F5FB;
  --white:#FFFFFF;
  --text:#171226;
  --text-2:#5B5470;
  --text-3:#8D87A0;
  --line:#E7E4F2;
  --success:#1FA971;
  --warning:#F2A33C;
  --danger:#E5484D;
  --r-card:16px;
  --r-big:20px;
  --r-img:14px;
  --r-input:12px;
  --shadow-1:0 1px 2px rgba(23,18,38,.04), 0 8px 24px rgba(23,18,38,.06);
  --shadow-2:0 16px 36px rgba(23,18,38,.12);
  --shadow-deep:0 20px 48px rgba(0,0,0,.35);
  --s-1:4px; --s-2:8px; --s-3:12px; --s-4:16px; --s-5:24px; --s-6:32px; --s-7:48px; --s-8:64px; --s-9:96px;
}

*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:-apple-system,"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Noto Sans SC",sans-serif;
  font-size:16px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;height:auto;}
a{color:var(--brand);text-decoration:none;transition:color .18s ease, background-color .18s ease, border-color .18s ease, transform .18s ease;}
a:hover{color:var(--brand-dark);}
button{font-family:inherit;}
h1,h2,h3,h4,p,ul,ol,dl,dd,figure{margin:0;}
ul,ol{padding:0;list-style:none;}
input,textarea{font-family:inherit;font-size:15px;}
: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 32px;}
.reading{max-width:760px;}

/* ============ 顶部导航（卡片化导航面板） ============ */
.site-header{
  position:sticky;
  top:0;
  z-index:80;
  padding-top:16px;
  transition:padding .2s ease;
}
.site-header.scrolled{padding-top:10px;}
.nav-panel{
  height:72px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  background:var(--white);
  border:1px solid var(--line);
  border-radius:18px;
  padding:0 16px;
  box-shadow:var(--shadow-1);
  transition:box-shadow .2s ease, background-color .2s ease;
}
.site-header.scrolled .nav-panel{
  box-shadow:0 12px 30px rgba(23,18,38,.12);
  background:rgba(255,255,255,.96);
}
.brand{display:flex;align-items:center;gap:10px;color:var(--text);}
.brand:hover{color:var(--text);}
.brand-mark{width:40px;height:40px;flex:0 0 40px;}
.brand-text{display:flex;flex-direction:column;line-height:1.1;}
.brand-name{font-size:19px;font-weight:800;letter-spacing:-.01em;}
.brand-sub{font-size:11px;color:var(--text-3);letter-spacing:.02em;margin-top:3px;}
.nav-links{display:flex;align-items:center;gap:6px;}
.nav-link{
  display:inline-flex;
  align-items:center;
  gap:7px;
  padding:10px 14px;
  border-radius:12px;
  font-size:15px;
  color:var(--text-2);
  transition:background-color .18s ease, color .18s ease, transform .18s ease;
}
.nav-link i{font-size:14px;color:var(--text-3);transition:color .18s ease;}
.nav-link:hover{background:var(--bg);color:var(--brand);transform:translateY(-2px);}
.nav-link:hover i{color:var(--brand);}
.nav-link.active{background:rgba(255,106,31,.08);color:var(--brand);font-weight:700;}
.nav-link.active i{color:var(--brand);}
.nav-drawer-cta{display:none;}
.nav-actions{display:flex;align-items:center;gap:10px;}

.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  font-weight:700;
  font-size:15px;
  border:0;
  cursor:pointer;
  transition:transform .18s ease, box-shadow .18s ease, background-color .18s ease, color .18s ease, border-color .18s ease;
}
.btn-primary{
  background:var(--brand);
  color:#fff;
  border-radius:999px;
  padding:12px 24px;
  min-height:46px;
  box-shadow:0 8px 20px rgba(255,106,31,.28);
}
.btn-primary:hover{background:#FF7C39;color:#fff;transform:translateY(-2px);box-shadow:0 14px 30px rgba(255,106,31,.34);}
.btn-primary:active{transform:translateY(0);}
.btn-secondary{
  background:transparent;
  color:var(--brand);
  border:1.5px solid var(--line);
  border-radius:12px;
  padding:12px 22px;
  min-height:46px;
}
.btn-secondary:hover{border-color:var(--brand);color:var(--brand);transform:translateY(-2px);}
.btn-ghost-light{
  background:transparent;
  color:#fff;
  border:1.5px solid rgba(255,255,255,.28);
  border-radius:12px;
  padding:12px 22px;
  min-height:46px;
}
.btn-ghost-light:hover{color:#fff;border-color:#fff;transform:translateY(-2px);}
.btn-lg{min-height:52px;padding:14px 30px;font-size:16px;}
.nav-toggle{
  display:none;
  width:44px;height:44px;
  border-radius:50%;
  border:1px solid var(--line);
  background:#fff;
  color:var(--text);
  align-items:center;
  justify-content:center;
  font-size:16px;
  cursor:pointer;
}
.nav-toggle:hover{background:var(--bg);}

/* ============ 面包屑 ============ */
.breadcrumb{
  font-size:14px;
  color:rgba(255,255,255,.72);
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:8px;
  justify-content:center;
}
.breadcrumb a{color:rgba(255,255,255,.8);}
.breadcrumb a:hover{color:#fff;}
.breadcrumb .sep{color:rgba(255,255,255,.45);}

/* ============ 分类页头（深色） ============ */
.cat-hero{
  position:relative;
  margin-top:-104px;
  padding:170px 0 96px;
  background:linear-gradient(rgba(20,16,42,.62), rgba(20,16,42,.72)), url(/assets/images/backpic/back-1.webp) center/cover no-repeat;
  color:#fff;
  text-align:center;
  overflow:hidden;
}
.cat-hero::before{
  content:"";
  position:absolute;
  inset:0;
  pointer-events:none;
  opacity:.18;
  background-image:
    radial-gradient(2px 2px at 10% 26%, rgba(255,255,255,.95), transparent 60%),
    radial-gradient(1.8px 1.8px at 82% 20%, rgba(255,255,255,.85), transparent 60%),
    radial-gradient(1.6px 1.6px at 66% 76%, rgba(255,255,255,.8), transparent 60%),
    radial-gradient(1.4px 1.4px at 26% 72%, rgba(255,255,255,.75), transparent 60%);
}
.cat-hero .container{position:relative;z-index:2;}
.cat-hero h1{
  font-size:clamp(30px,4.2vw,52px);
  line-height:1.15;
  font-weight:800;
  letter-spacing:-.02em;
  margin:24px auto 18px;
  max-width:900px;
}
.cat-hero h1 em{font-style:normal;color:var(--brand);}
.cat-hero .lead{
  font-size:17px;
  line-height:1.85;
  color:rgba(255,255,255,.82);
  max-width:760px;
  margin:0 auto 32px;
}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;justify-content:center;}
.hero-stats{
  margin-top:56px;
  display:grid;
  grid-template-columns:repeat(4,minmax(0,1fr));
  gap:16px;
}
.hero-stat{
  background:rgba(255,255,255,.06);
  border:1px solid rgba(255,255,255,.14);
  border-radius:var(--r-card);
  padding:20px 18px;
  text-align:left;
  backdrop-filter:blur(2px);
}
.hero-stat .k{
  font-size:12px;
  letter-spacing:.06em;
  color:var(--cyan);
  display:block;
  margin-bottom:6px;
}
.hero-stat .v{
  font-size:17px;
  font-weight:700;
  color:#fff;
  line-height:1.5;
}

/* ============ 通用板块 ============ */
.section{padding:96px 0;}
.section.tight{padding:72px 0;}
.section-head{max-width:780px;margin-bottom:48px;}
.section-head.center{margin-left:auto;margin-right:auto;text-align:center;}
.eyebrow{
  display:inline-flex;
  align-items:center;
  gap:8px;
  font-size:12px;
  font-weight:700;
  letter-spacing:.08em;
  color:var(--cyan);
  background:rgba(46,211,192,.12);
  border-radius:999px;
  padding:6px 14px;
  margin-bottom:16px;
}
h2.section-title{
  font-size:clamp(26px,3.2vw,36px);
  line-height:1.25;
  font-weight:700;
  letter-spacing:-.01em;
  color:var(--text);
}
h2.section-title::before{
  content:"";
  display:block;
  width:44px;
  height:4px;
  border-radius:2px;
  background:var(--brand);
  margin-bottom:18px;
}
.section-head.center h2.section-title::before{margin-left:auto;margin-right:auto;}
.section-sub{
  margin-top:16px;
  color:var(--text-2);
  font-size:16px;
  line-height:1.85;
}
h3{font-size:22px;line-height:1.35;font-weight:700;color:var(--text);}
h4{font-size:17px;line-height:1.5;font-weight:600;color:var(--text);}

/* ============ 概述区 ============ */
.overview-grid{
  display:grid;
  grid-template-columns:1.15fr .85fr;
  gap:48px;
  align-items:start;
}
.overview-text p{color:var(--text-2);font-size:17px;line-height:1.9;margin-bottom:20px;}
.overview-text p:last-child{margin-bottom:0;}
.overview-text strong{color:var(--text);font-weight:700;}
.data-cards{display:grid;gap:16px;}
.data-card{
  background:var(--white);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  padding:24px;
  box-shadow:var(--shadow-1);
  transition:transform .2s ease, box-shadow .2s ease, border-color .2s ease;
}
.data-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-2);border-color:rgba(255,106,31,.35);}
.data-card .ico{
  width:44px;height:44px;
  border-radius:12px;
  display:flex;align-items:center;justify-content:center;
  background:rgba(46,211,192,.14);
  color:#189b8c;
  font-size:18px;
  margin-bottom:16px;
}
.data-card h3{font-size:18px;margin-bottom:8px;}
.data-card p{font-size:14px;color:var(--text-2);line-height:1.8;}
.data-card .metric{
  display:block;
  margin-top:14px;
  font-size:14px;
  font-weight:700;
  color:var(--brand);
  font-variant-numeric:tabular-nums;
}

/* ============ 编号图文交错 ============ */
.flow{background:var(--white);border-top:1px solid var(--line);border-bottom:1px solid var(--line);}
.flow-row{
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:56px;
  align-items:center;
  padding:48px 0;
}
.flow-row + .flow-row{border-top:1px dashed var(--line);}
.flow-row.reverse .flow-media{order:2;}
.flow-row.reverse .flow-body{order:1;}
.flow-media img{
  width:100%;
  aspect-ratio:16/9;
  object-fit:cover;
  border-radius:var(--r-big);
  box-shadow:var(--shadow-1);
}
.flow-media{
  position:relative;
  border-radius:var(--r-big);
  overflow:hidden;
}
.flow-media::after{
  content:"";
  position:absolute;
  inset:0;
  background:linear-gradient(140deg, rgba(124,92,255,.18), rgba(26,18,48,.28));
  pointer-events:none;
}
.flow-num{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  min-width:52px;
  height:32px;
  padding:0 12px;
  border-radius:999px;
  background:rgba(255,106,31,.1);
  color:var(--brand);
  font-weight:800;
  font-size:14px;
  letter-spacing:.08em;
  font-variant-numeric:tabular-nums;
  margin-bottom:16px;
}
.flow-body h3{margin-bottom:12px;}
.flow-body > p{color:var(--text-2);font-size:16px;line-height:1.85;margin-bottom:18px;}
.dot-list li{
  position:relative;
  padding-left:22px;
  margin-bottom:10px;
  color:var(--text-2);
  font-size:15px;
  line-height:1.8;
}
.dot-list li::before{
  content:"";
  position:absolute;
  left:0;top:11px;
  width:8px;height:8px;
  border-radius:50%;
  background:var(--cyan);
}
.dot-list li:last-child{margin-bottom:0;}

/* ============ 中部下载 CTA ============ */
.cta-deep{
  position:relative;
  background:linear-gradient(150deg, rgba(26,18,48,.96), rgba(20,16,42,.98)), url(/assets/images/backpic/back-2.webp) center/cover no-repeat;
  color:#fff;
  padding:88px 0;
  overflow:hidden;
}
.cta-deep::before{
  content:"";
  position:absolute;
  right:-120px;
  top:-120px;
  width:420px;height:420px;
  border-radius:50%;
  border:1px solid rgba(46,211,192,.28);
  opacity:.18;
  pointer-events:none;
}
.cta-inner{
  position:relative;
  z-index:2;
  display:grid;
  grid-template-columns:1.2fr .8fr;
  gap:48px;
  align-items:center;
}
.cta-inner h2{
  font-size:clamp(26px,3.2vw,36px);
  line-height:1.25;
  font-weight:700;
  color:#fff;
  margin-bottom:16px;
}
.cta-inner p{color:rgba(255,255,255,.76);font-size:16px;line-height:1.85;margin-bottom:28px;}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;}
.qr-card{
  background:#fff;
  border-radius:var(--r-big);
  box-shadow:var(--shadow-deep);
  padding:20px;
  text-align:center;
  max-width:280px;
  justify-self:end;
}
.qr-box{
  width:132px;height:132px;
  margin:0 auto 14px;
  border-radius:14px;
  background:
    repeating-linear-gradient(90deg, var(--deep) 0 8px, #fff 8px 16px),
    repeating-linear-gradient(0deg, var(--deep) 0 8px, #fff 8px 16px);
  background-blend-mode:multiply;
  border:6px solid #fff;
  outline:1px solid var(--line);
}
.qr-card span{display:block;font-size:13px;color:var(--text-2);line-height:1.7;}
.qr-card strong{display:block;font-size:15px;color:var(--text);font-weight:700;margin-bottom:4px;}

/* ============ 场景卡 + 流程 ============ */
.grid-3{
  display:grid;
  grid-template-columns:repeat(3,minmax(0,1fr));
  gap:24px;
}
.scene-card{
  background:var(--white);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  padding:28px 24px;
  box-shadow:var(--shadow-1);
  transition:transform .2s ease, box-shadow .2s ease, border-color .2s ease;
}
.scene-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-2);border-color:rgba(46,211,192,.5);}
.scene-card .tag{
  display:inline-block;
  font-size:12px;
  font-weight:700;
  color:#189b8c;
  background:rgba(46,211,192,.14);
  border-radius:999px;
  padding:5px 12px;
  margin-bottom:16px;
}
.scene-card h3{font-size:19px;margin-bottom:10px;}
.scene-card p{font-size:15px;color:var(--text-2);line-height:1.8;}

.steps{
  margin-top:48px;
  display:grid;
  grid-template-columns:repeat(3,minmax(0,1fr));
  gap:24px;
  counter-reset:step;
}
.step{
  position:relative;
  background:var(--white);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  padding:28px 24px 24px;
  box-shadow:var(--shadow-1);
}
.step::before{
  counter-increment:step;
  content:"0" counter(step);
  display:inline-block;
  font-size:14px;
  font-weight:800;
  letter-spacing:.08em;
  color:var(--brand);
  font-variant-numeric:tabular-nums;
  margin-bottom:12px;
}
.step h4{margin-bottom:8px;font-size:17px;}
.step p{font-size:14px;color:var(--text-2);line-height:1.8;}

/* ============ FAQ ============ */
.faq-wrap{max-width:860px;margin:0 auto;}
.faq-item{
  background:var(--white);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  margin-bottom:14px;
  overflow:hidden;
  transition:border-color .2s ease, box-shadow .2s ease;
}
.faq-item.open{border-color:rgba(255,106,31,.4);box-shadow:var(--shadow-1);}
.faq-q{
  width:100%;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  padding:20px 24px;
  background:transparent;
  border:0;
  cursor:pointer;
  text-align:left;
  font-size:17px;
  font-weight:600;
  color:var(--text);
  line-height:1.5;
}
.faq-q:hover{color:var(--brand);}
.faq-q .chev{
  flex:0 0 32px;
  width:32px;height:32px;
  border-radius:50%;
  display:flex;align-items:center;justify-content:center;
  background:var(--bg);
  color:var(--text-2);
  font-size:13px;
  transition:transform .22s ease, background-color .22s ease, color .22s ease;
}
.faq-item.open .faq-q .chev{transform:rotate(180deg);background:rgba(255,106,31,.12);color:var(--brand);}
.faq-a{
  max-height:0;
  overflow:hidden;
  transition:max-height .3s ease;
}
.faq-a .inner{
  padding:0 24px 22px;
  color:var(--text-2);
  font-size:15px;
  line-height:1.9;
}

/* ============ 底部引导条 ============ */
.endnote{
  background:var(--white);
  border:1px solid var(--line);
  border-radius:var(--r-big);
  box-shadow:var(--shadow-1);
  padding:36px 32px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:28px;
  flex-wrap:wrap;
}
.endnote .txt strong{display:block;font-size:20px;font-weight:700;margin-bottom:8px;}
.endnote .txt span{font-size:15px;color:var(--text-2);line-height:1.8;}
.endnote .acts{display:flex;gap:12px;flex-wrap:wrap;}

/* ============ 页脚 ============ */
.site-footer{background:var(--deep);color:rgba(255,255,255,.72);margin-top:0;}
.footer-top{padding:72px 0 48px;}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:18px;}
.footer-brand .brand-name{color:#fff;}
.footer-brand .brand-sub{color:rgba(255,255,255,.55);}
.footer-about{font-size:14px;line-height:1.85;color:rgba(255,255,255,.66);max-width:420px;}
.footer-col h4{
  color:#fff;
  font-size:15px;
  font-weight:700;
  margin-bottom:16px;
}
.footer-col ul li{margin-bottom:10px;}
.footer-col ul li a{font-size:14px;color:rgba(255,255,255,.66);}
.footer-col ul li a:hover{color:var(--brand);}
.footer-bottom{background:var(--deep-2);border-top:1px solid rgba(255,255,255,.1);padding:20px 0;}
.footer-bottom .inner{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  flex-wrap:wrap;
  font-size:13px;
  color:rgba(255,255,255,.5);
}

/* ============ 响应式 ============ */
@media screen and (max-width:1023px){
  .container{padding:0 24px;}
  .section{padding:72px 0;}
  .section.tight{padding:56px 0;}
  .cat-hero{padding:150px 0 72px;}
  .overview-grid{grid-template-columns:1fr;gap:32px;}
  .flow-row{grid-template-columns:1fr;gap:28px;padding:40px 0;}
  .flow-row.reverse .flow-media{order:1;}
  .flow-row.reverse .flow-body{order:2;}
  .cta-inner{grid-template-columns:1fr;gap:32px;}
  .qr-card{justify-self:start;}
  .grid-3{grid-template-columns:1fr 1fr;}
  .steps{grid-template-columns:1fr 1fr;}
  .hero-stats{grid-template-columns:1fr 1fr;margin-top:40px;}
  .nav-toggle{display:inline-flex;}
  .nav-actions .btn-primary{display:none;}
  .nav-links{
    position:fixed;
    inset:0;
    z-index:90;
    background:var(--deep);
    flex-direction:column;
    align-items:stretch;
    gap:12px;
    padding:96px 24px 32px;
    transform:translateX(100%);
    transition:transform .28s ease;
    overflow-y:auto;
  }
  body.nav-open .nav-links{transform:translateX(0);}
  body.nav-open{overflow:hidden;}
  .nav-link{
    background:rgba(255,255,255,.06);
    color:#fff;
    font-size:16px;
    padding:16px 18px;
    border-radius:14px;
    justify-content:flex-start;
  }
  .nav-link i{color:var(--cyan);font-size:16px;}
  .nav-link:hover{background:rgba(255,255,255,.12);color:#fff;transform:none;}
  .nav-link.active{background:rgba(255,106,31,.18);color:#fff;}
  .nav-link.active i{color:var(--brand);}
  .nav-drawer-cta{
    display:inline-flex;
    margin-top:8px;
    background:var(--brand);
    color:#fff;
    justify-content:center;
    font-weight:700;
  }
  .nav-drawer-cta:hover{background:#FF7C39;color:#fff;}
}
@media screen and (max-width:639px){
  .container{padding:0 20px;}
  .section{padding:56px 0;}
  .section.tight{padding:48px 0;}
  .footer-top{padding:56px 0 36px;}
  .nav-panel{height:64px;padding:0 12px;}
  .brand-name{font-size:16px;}
  .brand-sub{font-size:10px;}
  .brand-mark{width:34px;height:34px;flex:0 0 34px;}
  .cat-hero{padding:132px 0 56px;margin-top:-96px;}
  .cat-hero h1{margin:18px auto 14px;}
  .hero-actions{flex-direction:column;align-items:stretch;}
  .hero-actions .btn{width:100%;}
  .hero-stats{grid-template-columns:1fr;gap:12px;margin-top:32px;}
  .hero-stat{padding:16px;}
  .grid-3{grid-template-columns:1fr;}
  .steps{grid-template-columns:1fr;}
  .section-head{margin-bottom:32px;}
  .data-card{padding:20px;}
  .scene-card,.step{padding:22px 20px;}
  .cta-deep{padding:64px 0;}
  .cta-actions{flex-direction:column;align-items:stretch;}
  .cta-actions .btn{width:100%;}
  .qr-card{max-width:100%;width:100%;}
  .faq-q{font-size:16px;padding:18px 18px;}
  .faq-a .inner{padding:0 18px 20px;}
  .endnote{padding:26px 20px;}
  .endnote .acts{width:100%;flex-direction:column;}
  .endnote .acts .btn{width:100%;}
  .footer-bottom .inner{flex-direction:column;align-items:flex-start;gap:8px;}
}

/* roulang page: category1 */
:root{
  --brand:#FF6A1F;
  --brand-soft:rgba(255,106,31,.08);
  --brand-glow:rgba(255,106,31,.18);
  --teal:#2ED3C0;
  --teal-soft:rgba(46,211,192,.12);
  --violet:#7C5CFF;
  --ink:#1A1230;
  --ink-2:#14102A;
  --bg:#F6F5FB;
  --card:#FFFFFF;
  --text:#171226;
  --text-2:#5B5470;
  --text-3:#8D87A0;
  --border:#E7E4F2;
  --ok:#1FA971;
  --warn:#F2A33C;
  --err:#E5484D;
  --r-card:16px;
  --r-lg:20px;
  --r-img:14px;
  --r-input:12px;
  --sh-1:0 1px 2px rgba(23,18,38,.04), 0 8px 24px rgba(23,18,38,.06);
  --sh-2:0 16px 36px rgba(23,18,38,.12);
  --sh-dark:0 20px 48px rgba(0,0,0,.35);
  --nav-h:72px;
}

*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:-apple-system,"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Noto Sans SC",sans-serif;
  font-size:16px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;height:auto;display:block;}
a{color:var(--brand);text-decoration:none;transition:color .18s ease, border-color .18s ease, background-color .18s ease;}
a:hover{color:var(--brand);}
h1,h2,h3,h4,p,ul,ol,dl,dd,figure{margin:0;}
ul,ol{padding:0;list-style:none;}
button{font-family:inherit;}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;}

/* Foundation 默认样式覆盖 */
body,button,input,select,textarea,.button{font-family:inherit;}
a.button,button.button,.button{background-color:var(--brand);border-radius:999px;}
a{color:var(--brand);}
a:hover,a:focus{color:#e75a13;}
.grid-container,.container{
  width:100%;
  max-width:1200px;
  margin:0 auto;
  padding-left:32px;
  padding-right:32px;
}
.num{font-variant-numeric:tabular-nums;}

/* ============ 导航 ============ */
.site-header{
  position:sticky;
  top:0;
  z-index:80;
  padding-top:16px;
  padding-bottom:8px;
  transition:padding .22s ease, background-color .22s ease;
}
.site-header.is-stuck{
  padding-bottom:12px;
  background:rgba(246,245,251,.96);
  backdrop-filter:saturate(150%) blur(6px);
}
.nav-panel{
  display:flex;
  align-items:center;
  gap:20px;
  height:var(--nav-h);
  padding:0 20px;
  background:#fff;
  border:1px solid var(--border);
  border-radius:18px;
  box-shadow:var(--sh-1);
  transition:box-shadow .22s ease;
}
.site-header.is-stuck .nav-panel{box-shadow:var(--sh-2);}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto;color:var(--text);}
.brand:hover{color:var(--text);}
.brand-mark{width:36px;height:36px;flex:0 0 auto;}
.brand-text{display:flex;flex-direction:column;line-height:1.12;}
.brand-name{font-size:19px;font-weight:800;letter-spacing:.2px;color:var(--text);}
.brand-sub{font-size:11px;color:var(--text-3);letter-spacing:.4px;}
.nav-links{display:flex;align-items:center;gap:6px;margin-left:auto;margin-right:auto;}
.nav-link{
  display:inline-flex;
  align-items:center;
  gap:8px;
  padding:10px 14px;
  border-radius:12px;
  font-size:15px;
  font-weight:600;
  color:var(--text-2);
  transition:background-color .18s ease,color .18s ease,transform .18s ease;
}
.nav-link i{font-size:15px;color:var(--text-3);transition:color .18s ease;}
.nav-link:hover{background:var(--bg);color:var(--brand);transform:translateY(-2px);}
.nav-link:hover i{color:var(--brand);}
.nav-link.active{background:var(--brand-soft);color:var(--brand);}
.nav-link.active i{color:var(--brand);}
.nav-actions{display:flex;align-items:center;gap:10px;flex:0 0 auto;}
.nav-toggle{
  display:none;
  width:44px;height:44px;
  align-items:center;justify-content:center;
  border:1px solid var(--border);
  background:#fff;
  border-radius:12px;
  color:var(--text);
  font-size:17px;
  cursor:pointer;
  transition:background-color .18s ease,color .18s ease;
}
.nav-toggle:hover{background:var(--bg);color:var(--brand);}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  height:48px;
  padding:0 26px;
  border-radius:999px;
  font-size:15px;
  font-weight:700;
  border:1.5px solid transparent;
  cursor:pointer;
  transition:transform .18s ease,box-shadow .18s ease,background-color .18s ease,color .18s ease,border-color .18s ease;
}
.btn i{font-size:15px;}
.btn-primary{background:var(--brand);color:#fff;box-shadow:0 8px 20px rgba(255,106,31,.24);}
.btn-primary:hover{background:#ff7d3c;color:#fff;transform:translateY(-2px);box-shadow:0 14px 30px rgba(255,106,31,.3);}
.btn-primary:active{transform:translateY(0);box-shadow:0 6px 16px rgba(255,106,31,.24);}
.btn-ghost{background:transparent;border-color:var(--border);color:var(--text);}
.btn-ghost:hover{border-color:var(--brand);color:var(--brand);transform:translateY(-2px);}
.btn-light{background:#fff;color:var(--ink);}
.btn-light:hover{background:#fff;color:var(--brand);transform:translateY(-2px);}
.btn-sm{height:40px;padding:0 20px;font-size:14px;}

/* ============ 页头 ============ */
.page-head{
  position:relative;
  overflow:hidden;
  background:#fff;
  border-bottom:1px solid var(--border);
}
.page-head .container{
  min-height:260px;
  display:flex;
  flex-direction:column;
  justify-content:center;
  padding-top:48px;
  padding-bottom:48px;
}
.page-head::after{
  content:"";
  position:absolute;
  right:-120px;
  top:-140px;
  width:420px;height:420px;
  border-radius:50%;
  border:1px dashed rgba(124,92,255,.18);
  pointer-events:none;
}
.eyebrow{
  display:inline-flex;
  align-items:center;
  gap:8px;
  align-self:flex-start;
  padding:6px 14px;
  border-radius:999px;
  background:var(--teal-soft);
  color:#12897c;
  font-size:12px;
  font-weight:700;
  letter-spacing:.4px;
  margin-bottom:18px;
}
.page-head h1{
  font-size:clamp(30px,4.2vw,52px);
  line-height:1.15;
  font-weight:800;
  letter-spacing:-.5px;
  max-width:900px;
}
.page-head .lead{
  margin-top:18px;
  max-width:720px;
  font-size:17px;
  color:var(--text-2);
}
.page-head .head-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:28px;}

/* ============ 板块 ============ */
.section{padding:96px 0;}
.section.tight{padding:64px 0;}
.section.alt{background:#fff;border-top:1px solid var(--border);border-bottom:1px solid var(--border);}
.section-head{max-width:760px;margin-bottom:44px;}
.section-head.center{margin-left:auto;margin-right:auto;text-align:center;}
h2.section-title{
  position:relative;
  font-size:clamp(26px,3vw,36px);
  line-height:1.25;
  font-weight:700;
  letter-spacing:-.3px;
}
h2.section-title::before{
  content:"";
  display:block;
  width:44px;height:4px;
  border-radius:999px;
  background:var(--brand);
  margin-bottom:18px;
}
.section-head.center h2.section-title::before{margin-left:auto;margin-right:auto;}
.section-sub{margin-top:14px;color:var(--text-2);font-size:16px;}
h3{font-size:21px;line-height:1.4;font-weight:700;}

/* ============ 引言 ============ */
.lead-block{display:grid;grid-template-columns:1.35fr 1fr;gap:48px;align-items:start;}
.lead-text p{font-size:17px;line-height:1.9;color:var(--text-2);}
.lead-text p + p{margin-top:20px;}
.lead-text strong{color:var(--text);font-weight:700;}
.fact-card{
  background:#fff;
  border:1px solid var(--border);
  border-radius:var(--r-lg);
  box-shadow:var(--sh-1);
  padding:28px;
}
.fact-card h3{font-size:17px;margin-bottom:8px;}
.fact-card .fact-note{font-size:13px;color:var(--text-3);margin-bottom:18px;}
.fact-list li{
  display:flex;
  align-items:baseline;
  justify-content:space-between;
  gap:16px;
  padding:14px 0;
  border-top:1px solid var(--border);
  font-size:14px;
}
.fact-list li:first-child{border-top:0;}
.fact-list .k{color:var(--text-2);}
.fact-list .v{font-weight:700;color:var(--text);font-variant-numeric:tabular-nums;}

/* ============ 两列图片卡 ============ */
.card-grid-2{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:24px;}
.shot-card{
  display:flex;
  flex-direction:column;
  background:#fff;
  border:1px solid var(--border);
  border-radius:var(--r-lg);
  box-shadow:var(--sh-1);
  overflow:hidden;
  transition:transform .2s ease,box-shadow .2s ease;
}
.shot-card:hover{transform:translateY(-4px);box-shadow:var(--sh-2);}
.shot-card .thumb{position:relative;aspect-ratio:16/9;overflow:hidden;background:var(--ink);}
.shot-card .thumb img{width:100%;height:100%;object-fit:cover;transition:transform .5s ease;}
.shot-card:hover .thumb img{transform:scale(1.04);}
.shot-card .thumb::after{
  content:"";
  position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(26,18,48,0) 45%,rgba(26,18,48,.42) 100%);
}
.shot-card .badge{
  position:absolute;
  left:16px;top:16px;
  z-index:2;
  padding:5px 12px;
  border-radius:999px;
  background:rgba(255,255,255,.94);
  color:#12897c;
  font-size:12px;
  font-weight:700;
}
.shot-card .body{padding:24px;display:flex;flex-direction:column;gap:12px;flex:1;}
.shot-card h3{font-size:20px;}
.shot-card p{font-size:14px;color:var(--text-2);line-height:1.8;}
.tag-row{display:flex;flex-wrap:wrap;gap:8px;margin-top:auto;padding-top:8px;}
.tag{
  display:inline-flex;
  align-items:center;
  gap:6px;
  padding:5px 12px;
  border-radius:999px;
  background:var(--brand-soft);
  color:#c74f10;
  font-size:12px;
  font-weight:600;
}
.tag.teal{background:var(--teal-soft);color:#12897c;}

/* ============ 场景清单 + 流程 ============ */
.split{display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:start;}
.check-list{display:flex;flex-direction:column;gap:12px;}
.check-item{
  display:flex;
  gap:16px;
  align-items:flex-start;
  min-height:56px;
  padding:18px 20px;
  background:#fff;
  border:1px solid var(--border);
  border-radius:var(--r-card);
  box-shadow:var(--sh-1);
  transition:background-color .18s ease,transform .18s ease;
}
.check-item:hover{background:#fff;transform:translateY(-2px);}
.check-item .ico{
  flex:0 0 auto;
  width:36px;height:36px;
  border-radius:10px;
  display:flex;align-items:center;justify-content:center;
  background:var(--brand-soft);
  color:var(--brand);
  font-size:15px;
}
.check-item h4{font-size:16px;font-weight:700;margin-bottom:2px;}
.check-item p{font-size:14px;color:var(--text-2);line-height:1.75;}
.step-list{counter-reset:step;display:flex;flex-direction:column;gap:20px;}
.step{
  position:relative;
  padding:22px 24px 22px 76px;
  background:#fff;
  border:1px solid var(--border);
  border-radius:var(--r-card);
  box-shadow:var(--sh-1);
}
.step::before{
  counter-increment:step;
  content:"0" counter(step);
  position:absolute;
  left:24px;top:22px;
  font-size:20px;
  font-weight:800;
  color:var(--brand);
  font-variant-numeric:tabular-nums;
  letter-spacing:-.5px;
}
.step h4{font-size:17px;font-weight:700;margin-bottom:4px;}
.step p{font-size:14px;color:var(--text-2);line-height:1.8;}

/* ============ FAQ ============ */
.faq-wrap{max-width:860px;margin:0 auto;}
.faq-item{
  background:#fff;
  border:1px solid var(--border);
  border-radius:var(--r-card);
  box-shadow:var(--sh-1);
  margin-bottom:12px;
  overflow:hidden;
}
.faq-item summary{
  list-style:none;
  cursor:pointer;
  padding:20px 24px;
  font-size:16px;
  font-weight:700;
  color:var(--text);
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  transition:background-color .18s ease,color .18s ease;
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary::after{
  content:"\f067";
  font-family:"Font Awesome 6 Free";
  font-weight:900;
  font-size:13px;
  color:var(--brand);
  transition:transform .2s ease;
}
.faq-item[open] summary{color:var(--brand);background:var(--brand-soft);}
.faq-item[open] summary::after{transform:rotate(45deg);}
.faq-item .answer{padding:0 24px 22px;font-size:15px;color:var(--text-2);line-height:1.85;}

/* ============ CTA ============ */
.cta-band{
  position:relative;
  overflow:hidden;
  background:var(--ink);
  border-radius:24px;
  padding:64px 56px;
  color:#fff;
  display:grid;
  grid-template-columns:1.4fr 1fr;
  gap:40px;
  align-items:center;
}
.cta-band::before{
  content:"";
  position:absolute;
  inset:0;
  background:radial-gradient(760px 320px at 88% 8%, rgba(46,211,192,.16), transparent 60%);
  pointer-events:none;
}
.cta-band .stars{
  position:absolute;
  inset:0;
  background-image:
    radial-gradient(2px 2px at 18% 30%, rgba(255,255,255,.5), transparent),
    radial-gradient(2px 2px at 62% 72%, rgba(255,255,255,.42), transparent),
    radial-gradient(1.6px 1.6px at 82% 24%, rgba(255,255,255,.5), transparent),
    radial-gradient(1.6px 1.6px at 38% 84%, rgba(255,255,255,.35), transparent);
  opacity:.18;
  pointer-events:none;
}
.cta-band > *{position:relative;z-index:2;}
.cta-band h2{font-size:clamp(26px,3vw,34px);line-height:1.25;font-weight:700;color:#fff;}
.cta-band h2::before{background:var(--brand);}
.cta-band p{margin-top:14px;color:rgba(255,255,255,.72);font-size:15px;}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:26px;}
.btn-outline-light{background:transparent;border-color:rgba(255,255,255,.28);color:#fff;}
.btn-outline-light:hover{border-color:var(--brand);color:var(--brand);transform:translateY(-2px);}
.qr-card{
  background:#fff;
  border-radius:20px;
  padding:20px;
  box-shadow:var(--sh-dark);
  text-align:center;
  color:var(--text);
}
.qr-card .qr-box{
  width:132px;height:132px;
  margin:0 auto 14px;
  border-radius:14px;
  border:1px dashed var(--border);
  background:var(--bg);
  display:flex;align-items:center;justify-content:center;
  color:var(--text-3);
  font-size:12px;
  line-height:1.6;
  text-align:center;
  padding:8px;
}
.qr-card strong{display:block;font-size:14px;}
.qr-card span{font-size:12px;color:var(--text-3);}

/* ============ 页脚 ============ */
.site-footer{background:var(--ink);color:rgba(255,255,255,.72);margin-top:96px;}
.footer-top{padding:72px 0 48px;}
.footer-brand{display:flex;align-items:center;gap:12px;margin-bottom:18px;}
.footer-brand .brand-name{color:#fff;}
.footer-brand .brand-sub{color:rgba(255,255,255,.55);}
.footer-about{font-size:14px;line-height:1.85;color:rgba(255,255,255,.66);max-width:340px;}
.footer-col h4{font-size:15px;color:#fff;margin-bottom:16px;font-weight:700;}
.footer-col ul{display:flex;flex-direction:column;gap:10px;}
.footer-col a{font-size:14px;color:rgba(255,255,255,.68);}
.footer-col a:hover{color:var(--brand);}
.footer-bottom{background:var(--ink-2);padding:20px 0;}
.footer-bottom .inner{
  display:flex;flex-wrap:wrap;gap:12px;
  align-items:center;justify-content:space-between;
  font-size:13px;color:rgba(255,255,255,.55);
}
.footer-bottom a{color:rgba(255,255,255,.72);}
.footer-bottom a:hover{color:var(--brand);}

/* ============ 响应式 ============ */
@media screen and (max-width:1023px){
  .container{padding-left:24px;padding-right:24px;}
  .section{padding:72px 0;}
  .nav-panel{gap:12px;}
  .nav-toggle{display:flex;}
  .nav-links{
    position:fixed;
    top:0;left:0;right:0;bottom:0;
    display:grid;
    grid-template-columns:1fr 1fr;
    align-content:start;
    gap:12px;
    padding:96px 24px 120px;
    background:var(--ink);
    margin:0;
    overflow-y:auto;
    transform:translateY(-12px);
    opacity:0;
    visibility:hidden;
    transition:opacity .22s ease,transform .22s ease,visibility .22s ease;
    z-index:90;
  }
  .nav-links.is-open{transform:translateY(0);opacity:1;visibility:visible;}
  .nav-link{
    flex-direction:column;
    align-items:flex-start;
    gap:8px;
    padding:18px;
    background:rgba(255,255,255,.06);
    border:1px solid rgba(255,255,255,.12);
    border-radius:14px;
    color:rgba(255,255,255,.86);
    font-size:15px;
  }
  .nav-link i{color:var(--teal);font-size:18px;}
  .nav-link:hover,.nav-link.active{background:rgba(255,106,31,.16);color:#fff;transform:none;}
  .nav-link:hover i,.nav-link.active i{color:var(--brand);}
  .nav-actions .btn-primary{display:none;}
  .lead-block,.split{grid-template-columns:1fr;gap:32px;}
  .cta-band{grid-template-columns:1fr;padding:48px 36px;}
}
@media screen and (max-width:767px){
  .section{padding:56px 0;}
  .page-head .container{padding-top:36px;padding-bottom:36px;min-height:0;}
  .card-grid-2{grid-template-columns:1fr;gap:20px;}
  .section-head{margin-bottom:32px;}
  .cta-band{padding:40px 24px;border-radius:20px;}
  .qr-card{max-width:260px;}
  .footer-top{padding:56px 0 36px;}
}
@media screen and (max-width:519px){
  .container{padding-left:20px;padding-right:20px;}
  .brand-sub{display:none;}
  .nav-panel{padding:0 14px;border-radius:16px;}
  .btn{width:100%;padding:0 18px;}
  .head-actions,.cta-actions{flex-direction:column;align-items:stretch;}
  .page-head h1{font-size:30px;}
  .footer-about{max-width:none;}
}

/* roulang page: category3 */
:root{
  --brand:#FF6A1F;
  --brand-soft:rgba(255,106,31,.08);
  --brand-glow:rgba(255,106,31,.18);
  --teal:#2ED3C0;
  --teal-soft:rgba(46,211,192,.12);
  --violet:#7C5CFF;
  --deep:#1A1230;
  --deep-2:#14102A;
  --paper:#F6F5FB;
  --white:#FFFFFF;
  --ink:#171226;
  --ink-2:#5B5470;
  --ink-3:#8D87A0;
  --line:#E7E4F2;
  --ok:#1FA971;
  --warn:#F2A33C;
  --err:#E5484D;
  --r-card:16px;
  --r-lg:20px;
  --r-img:14px;
  --r-input:12px;
  --shadow:0 1px 2px rgba(23,18,38,.04),0 8px 24px rgba(23,18,38,.06);
  --shadow-hover:0 16px 36px rgba(23,18,38,.12);
  --shadow-deep:0 20px 48px rgba(0,0,0,.35);
  --container:1200px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  background:var(--paper);
  color:var(--ink);
  font-family:-apple-system,"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Noto Sans SC",sans-serif;
  font-size:16px;
  line-height:1.85;
  letter-spacing:.01em;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;height:auto;display:block}
a{color:var(--brand);text-decoration:none;transition:color .18s ease,border-color .18s ease}
a:hover{color:#E85A0F}
h1,h2,h3,h4,h5,h6{margin:0 0 12px;color:var(--ink);font-weight:700;line-height:1.3}
h2{font-size:clamp(28px,3.4vw,36px);line-height:1.25;font-weight:700}
h3{font-size:clamp(20px,2.2vw,24px);line-height:1.35;font-weight:700}
h4{font-size:17px;line-height:1.45;font-weight:600}
p{margin:0 0 16px}
ul,ol{margin:0;padding:0;list-style:none}
button{font-family:inherit}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px}
::selection{background:var(--brand);color:#fff}

.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 32px}
.section{padding:96px 0}
.section-tight{padding:72px 0}
.section-head{max-width:760px;margin-bottom:44px}
.section-head .eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;font-weight:700;letter-spacing:.08em;
  color:var(--brand);text-transform:none;margin-bottom:12px;
}
.eyebrow::before{content:"";width:22px;height:3px;border-radius:2px;background:var(--brand)}
.section-head p{color:var(--ink-2);font-size:16px;margin:0}

/* ---------- 头部与卡片化导航 ---------- */
.site-header{position:sticky;top:0;z-index:60;padding-top:16px;transition:box-shadow .22s ease}
.site-header.is-stuck .nav-panel{box-shadow:0 12px 32px rgba(23,18,38,.12);background:rgba(255,255,255,.96);backdrop-filter:blur(6px)}
.nav-panel{
  display:flex;align-items:center;gap:20px;
  height:72px;padding:0 16px 0 20px;
  background:var(--white);
  border:1px solid var(--line);
  border-radius:18px;
  box-shadow:var(--shadow);
  transition:box-shadow .22s ease,background .22s ease;
}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto;color:var(--ink)}
.brand:hover{color:var(--ink)}
.brand-mark{width:34px;height:34px;flex:0 0 auto}
.brand-text{display:flex;flex-direction:column;line-height:1.1}
.brand-name{font-size:19px;font-weight:800;letter-spacing:.01em}
.brand-sub{font-size:11px;color:var(--ink-3);letter-spacing:.14em}
.nav-links{display:flex;align-items:center;gap:6px;margin-left:8px;flex:1 1 auto}
.nav-link{
  display:inline-flex;align-items:center;gap:8px;
  padding:10px 14px;border-radius:12px;
  font-size:15px;font-weight:600;color:var(--ink-2);
  transition:background .18s ease,color .18s ease,transform .18s ease;
}
.nav-link i{font-size:15px;color:var(--ink-3);transition:color .18s ease}
.nav-link:hover{background:var(--paper);color:var(--ink);transform:translateY(-2px)}
.nav-link:hover i{color:var(--brand)}
.nav-link.active{background:var(--brand-soft);color:var(--brand)}
.nav-link.active i{color:var(--brand)}
.nav-actions{display:flex;align-items:center;gap:10px;margin-left:auto;flex:0 0 auto}
.nav-toggle{
  display:none;width:44px;height:44px;border-radius:50%;
  border:1px solid var(--line);background:var(--white);color:var(--ink);
  font-size:17px;cursor:pointer;transition:background .18s ease,color .18s ease;
}
.nav-toggle:hover{background:var(--paper);color:var(--brand)}
.nav-drawer-cta{display:none}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:9px;
  font-size:15px;font-weight:700;line-height:1;
  border-radius:999px;border:1.5px solid transparent;
  padding:14px 28px;min-height:48px;cursor:pointer;
  transition:transform .18s ease,box-shadow .18s ease,background .18s ease,color .18s ease,border-color .18s ease;
}
.btn i{font-size:16px}
.btn-primary{background:var(--brand);color:#fff;box-shadow:0 10px 24px rgba(255,106,31,.26)}
.btn-primary:hover{background:#ff7d38;color:#fff;transform:translateY(-2px);box-shadow:0 16px 32px rgba(255,106,31,.32)}
.btn-primary:active{transform:translateY(0)}
.btn-ghost{background:transparent;border-color:var(--line);color:var(--ink)}
.btn-ghost:hover{border-color:var(--brand);color:var(--brand);transform:translateY(-2px)}
.btn-ghost:active{transform:translateY(0)}
.btn-on-dark{background:transparent;border-color:rgba(255,255,255,.28);color:#fff}
.btn-on-dark:hover{border-color:var(--brand);color:#fff;background:rgba(255,106,31,.14)}
.btn-sm{padding:11px 20px;min-height:42px;font-size:14px}

/* ---------- 徽章与标签 ---------- */
.badge{
  display:inline-flex;align-items:center;gap:6px;
  padding:5px 12px;border-radius:999px;
  font-size:12px;font-weight:700;letter-spacing:.02em;
  background:var(--teal-soft);color:#1B9C8D;
}
.badge-warm{background:var(--brand-soft);color:#D9550F}
.badge-plain{background:var(--paper);color:var(--ink-2)}
.chip-row{
  display:flex;flex-wrap:wrap;gap:10px;
  padding:18px 0 0;
}
.chip{
  display:inline-flex;align-items:center;gap:7px;
  padding:9px 16px;border-radius:999px;
  border:1px solid var(--line);background:var(--white);
  font-size:14px;font-weight:600;color:var(--ink-2);
  transition:border-color .18s ease,color .18s ease,transform .18s ease,background .18s ease;
}
.chip:hover{border-color:var(--brand);color:var(--brand);transform:translateY(-2px);background:var(--white)}
.chip.is-current{background:var(--brand);border-color:var(--brand);color:#fff}

/* ---------- 页头（左文右图） ---------- */
.page-hero{padding:56px 0 24px}
.hero-card{
  background:var(--white);
  border:1px solid var(--line);
  border-radius:24px;
  box-shadow:var(--shadow);
  padding:44px;
}
.hero-grid{display:flex;align-items:center;gap:44px}
.hero-copy{flex:1 1 54%;min-width:0}
.hero-media{flex:1 1 46%;min-width:0}
.hero-media img{
  width:100%;aspect-ratio:16/10;object-fit:cover;
  border-radius:var(--r-lg);
  border:1px solid var(--line);
  box-shadow:var(--shadow);
}
.hero-copy h1{
  font-size:clamp(30px,4.2vw,46px);
  line-height:1.15;font-weight:800;margin:16px 0 16px;
  letter-spacing:-.01em;
}
.hero-copy .lead{font-size:17px;color:var(--ink-2);max-width:640px;margin-bottom:26px}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px}
.hero-facts{display:flex;flex-wrap:wrap;gap:28px;margin-top:32px;padding-top:24px;border-top:1px solid var(--line)}
.hero-facts .fact{min-width:120px}
.hero-facts .num{font-size:26px;font-weight:800;color:var(--ink);font-variant-numeric:tabular-nums;line-height:1.2}
.hero-facts .label{font-size:13px;color:var(--ink-3)}

/* ---------- 要点清单卡 ---------- */
.check-list{display:grid;gap:14px}
.check-item{
  display:flex;align-items:flex-start;gap:16px;
  padding:20px 22px;min-height:56px;
  background:var(--white);border:1px solid var(--line);
  border-radius:var(--r-card);box-shadow:var(--shadow);
  transition:transform .18s ease,box-shadow .18s ease,background .18s ease;
}
.check-item:hover{background:var(--paper);transform:translateY(-2px);box-shadow:var(--shadow-hover)}
.check-icon{
  flex:0 0 auto;width:42px;height:42px;border-radius:12px;
  display:inline-flex;align-items:center;justify-content:center;
  background:var(--brand-soft);color:var(--brand);font-size:17px;
}
.check-body{flex:1 1 auto;min-width:0}
.check-body h3{font-size:17px;margin:0 0 4px;font-weight:700}
.check-body p{margin:0;font-size:14px;color:var(--ink-2);line-height:1.7}
.check-arrow{color:var(--ink-3);font-size:14px;align-self:center;transition:color .18s ease,transform .18s ease}
.check-item:hover .check-arrow{color:var(--brand);transform:translateX(3px)}

/* ---------- 卡片网格 ---------- */
.card-grid{display:grid;gap:24px}
.card-grid.cols-3{grid-template-columns:repeat(3,minmax(0,1fr))}
.card-grid.cols-2{grid-template-columns:repeat(2,minmax(0,1fr))}
.card{
  display:flex;flex-direction:column;
  background:var(--white);border:1px solid var(--line);
  border-radius:var(--r-card);box-shadow:var(--shadow);
  overflow:hidden;
  transition:transform .2s ease,box-shadow .2s ease;
}
.card:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover)}
.card-cover{width:100%;aspect-ratio:16/9;object-fit:cover}
.card-body{padding:22px;display:flex;flex-direction:column;gap:10px;flex:1 1 auto}
.card-body h3{font-size:19px;margin:0}
.card-body p{font-size:14px;color:var(--ink-2);margin:0;line-height:1.75}
.card-points{display:grid;gap:8px;margin:2px 0 0;padding:0}
.card-points li{display:flex;gap:9px;font-size:14px;color:var(--ink-2);line-height:1.65}
.card-points i{color:var(--teal);font-size:13px;margin-top:6px}
.card-foot{
  margin-top:auto;padding-top:14px;border-top:1px solid var(--line);
  display:flex;align-items:center;justify-content:space-between;
  font-size:13px;color:var(--ink-3);
}
.card-foot .link{font-weight:700;font-size:14px;color:var(--brand)}

/* ---------- 字段口径 ---------- */
.spec-wrap{margin-top:56px;display:flex;gap:36px;flex-wrap:wrap}
.spec-copy{flex:1 1 320px;min-width:0}
.spec-copy h3{margin-bottom:8px}
.spec-copy p{color:var(--ink-2);font-size:15px;margin:0}
.spec-list{flex:1 1 480px;min-width:0;background:var(--white);border:1px solid var(--line);border-radius:var(--r-card);box-shadow:var(--shadow);padding:8px 24px;margin:0}
.spec-list .row-item{display:flex;gap:18px;padding:16px 0;border-bottom:1px solid var(--line)}
.spec-list .row-item:last-child{border-bottom:0}
.spec-list dt{flex:0 0 132px;font-weight:700;font-size:15px;color:var(--ink)}
.spec-list dd{margin:0;flex:1 1 auto;font-size:14px;color:var(--ink-2);line-height:1.7}

/* ---------- 深色下载 CTA ---------- */
.cta-deep{
  position:relative;overflow:hidden;
  background:var(--deep);
  background-image:linear-gradient(180deg,rgba(26,18,48,.94),rgba(20,16,42,.96)),url("/assets/images/backpic/back-2.webp");
  background-size:cover;background-position:center;
  border-radius:24px;
  padding:64px;
  color:#fff;
}
.cta-deep::after{
  content:"";position:absolute;top:-120px;right:-90px;width:360px;height:360px;
  border-radius:50%;border:1px solid rgba(255,255,255,.10);
  opacity:.18;pointer-events:none;
}
.cta-stars{
  position:absolute;inset:0;pointer-events:none;opacity:.16;
  background-image:radial-gradient(1.6px 1.6px at 12% 26%,#fff 50%,transparent 51%),
                   radial-gradient(1.4px 1.4px at 38% 68%,#fff 50%,transparent 51%),
                   radial-gradient(1.6px 1.6px at 72% 22%,#fff 50%,transparent 51%),
                   radial-gradient(1.2px 1.2px at 88% 74%,#fff 50%,transparent 51%);
}
.cta-inner{position:relative;z-index:2;display:flex;gap:44px;align-items:center;flex-wrap:wrap}
.cta-copy{flex:1 1 420px;min-width:0}
.cta-copy h2{color:#fff}
.cta-copy p{color:rgba(255,255,255,.72);font-size:16px;margin:0 0 26px;max-width:560px}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px}
.qr-card{
  flex:0 0 148px;width:148px;height:148px;border-radius:var(--r-card);
  background:#fff;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:8px;
  color:var(--ink-3);font-size:12px;box-shadow:var(--shadow-deep);text-align:center;padding:10px;
}
.qr-card i{font-size:34px;color:var(--ink)}
.qr-card span{line-height:1.5}

/* ---------- FAQ ---------- */
.faq-list{display:grid;gap:12px;max-width:900px}
.faq-item{
  background:var(--white);border:1px solid var(--line);
  border-radius:var(--r-card);box-shadow:var(--shadow);
  overflow:hidden;transition:box-shadow .2s ease,border-color .2s ease;
}
.faq-item[open]{border-color:rgba(255,106,31,.35);box-shadow:var(--shadow-hover)}
.faq-item summary{
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:20px 24px;cursor:pointer;list-style:none;
  font-size:17px;font-weight:700;color:var(--ink);
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary:focus-visible{outline:2px solid var(--brand);outline-offset:-4px}
.faq-item summary .faq-icon{
  flex:0 0 auto;width:30px;height:30px;border-radius:50%;
  display:inline-flex;align-items:center;justify-content:center;
  background:var(--brand-soft);color:var(--brand);font-size:13px;
  transition:transform .22s ease,background .22s ease,color .22s ease;
}
.faq-item[open] summary .faq-icon{background:var(--brand);color:#fff;transform:rotate(180deg)}
.faq-answer{padding:0 24px 22px;color:var(--ink-2);font-size:15px;line-height:1.85}
.faq-answer p{margin:0}

/* ---------- 核对小结 ---------- */
.summary-card{
  background:var(--white);border:1px solid var(--line);
  border-radius:24px;box-shadow:var(--shadow);padding:44px;
}
.summary-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px;margin-top:8px}
.summary-item{padding:22px;border:1px solid var(--line);border-radius:var(--r-card);background:var(--paper);transition:transform .18s ease,box-shadow .18s ease}
.summary-item:hover{transform:translateY(-3px);box-shadow:var(--shadow)}
.summary-item .idx{font-size:13px;font-weight:800;letter-spacing:.14em;color:var(--brand);font-variant-numeric:tabular-nums}
.summary-item h3{font-size:18px;margin:8px 0 6px}
.summary-item p{margin:0;font-size:14px;color:var(--ink-2);line-height:1.75}
.summary-links{display:flex;flex-wrap:wrap;gap:12px;margin-top:28px}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--deep);color:rgba(255,255,255,.72);margin-top:96px}
.footer-top{padding:72px 0 48px}
.footer-brand{display:flex;align-items:center;gap:10px;color:#fff;margin-bottom:16px}
.footer-brand .brand-name{color:#fff}
.footer-brand .brand-sub{color:rgba(255,255,255,.5)}
.footer-about{font-size:14px;line-height:1.85;color:rgba(255,255,255,.6);max-width:400px;margin:0}
.footer-col h4{color:#fff;font-size:15px;margin:0 0 16px;letter-spacing:.02em}
.footer-col ul{display:grid;gap:10px}
.footer-col a{color:rgba(255,255,255,.66);font-size:14px}
.footer-col a:hover{color:var(--brand)}
.footer-bottom{background:var(--deep-2);padding:20px 0}
.footer-bottom .inner{
  display:flex;flex-wrap:wrap;gap:10px 24px;align-items:center;justify-content:space-between;
  font-size:13px;color:rgba(255,255,255,.5);
}

/* ---------- 响应式 ---------- */
@media screen and (max-width:1023px){
  .container{padding:0 24px}
  .section{padding:72px 0}
  .nav-links{
    display:none;position:fixed;inset:0;z-index:80;
    flex-direction:column;align-items:stretch;gap:12px;
    padding:88px 24px 32px;
    background:var(--deep);margin:0;
    overflow-y:auto;
  }
  .nav-panel.menu-open .nav-links{display:flex}
  .nav-panel.menu-open .nav-link{
    background:rgba(255,255,255,.06);color:#fff;
    padding:16px 18px;border-radius:16px;font-size:16px;
  }
  .nav-panel.menu-open .nav-link i{color:var(--teal)}
  .nav-panel.menu-open .nav-link.active{background:rgba(255,106,31,.18);color:var(--brand)}
  .nav-toggle{display:inline-flex;align-items:center;justify-content:center;z-index:90}
  .nav-actions .btn-primary{display:none}
  .nav-drawer-cta{display:flex;flex-wrap:wrap;gap:12px;margin-top:auto;padding-top:24px;border-top:1px solid rgba(255,255,255,.14)}
  .nav-drawer-cta .btn{flex:1 1 160px}
  .nav-panel.menu-open{background:var(--deep);border-color:rgba(255,255,255,.12)}
  .nav-panel.menu-open .brand-name{color:#fff}
  .nav-panel.menu-open .brand-sub{color:rgba(255,255,255,.5)}
  .nav-panel.menu-open .nav-toggle{background:rgba(255,255,255,.08);border-color:rgba(255,255,255,.2);color:#fff}
  .hero-grid{flex-direction:column;gap:32px}
  .card-grid.cols-3{grid-template-columns:repeat(2,minmax(0,1fr))}
  .summary-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .cta-deep{padding:48px}
}
@media screen and (max-width:767px){
  .container{padding:0 20px}
  .section{padding:56px 0}
  .section-tight{padding:48px 0}
  .nav-panel{height:64px;padding:0 12px 0 14px;border-radius:16px}
  .brand-name{font-size:17px}
  .hero-card{padding:26px;border-radius:20px}
  .page-hero{padding:40px 0 16px}
  .hero-copy h1{margin-top:12px}
  .hero-facts{gap:18px}
  .hero-facts .fact{min-width:96px}
  .card-grid.cols-3,.card-grid.cols-2{grid-template-columns:1fr}
  .summary-grid{grid-template-columns:1fr}
  .spec-list{padding:8px 18px}
  .spec-list .row-item{flex-direction:column;gap:4px}
  .spec-list dt{flex:none}
  .cta-deep{padding:32px;border-radius:20px}
  .cta-inner{gap:28px}
  .qr-card{flex:0 0 128px;width:128px;height:128px}
  .summary-card{padding:26px;border-radius:20px}
  .footer-top{padding:56px 0 36px}
  .section-head{margin-bottom:32px}
}
@media screen and (max-width:479px){
  .btn{width:100%;padding:14px 20px}
  .hero-actions{flex-direction:column;align-items:stretch}
  .cta-actions{flex-direction:column;align-items:stretch}
  .summary-links{flex-direction:column}
  .summary-links .btn{width:100%}
}