/* roulang page: index */
:root{
  --c-primary:#1652D9;
  --c-primary-dark:#0E3AA8;
  --c-primary-soft:#E8F0FE;
  --c-accent:#12B886;
  --c-accent-dark:#0B8F69;
  --c-accent-soft:#E6F7F1;
  --c-title:#0F172A;
  --c-text:#475569;
  --c-muted:#94A3B8;
  --c-border:#E4E9F2;
  --c-bg:#F5F8FC;
  --c-card:#FFFFFF;
  --c-footer:#0A1B3D;
  --r-card:14px;
  --r-img:16px;
  --r-btn:10px;
  --r-pill:999px;
  --sh-1:0 1px 2px rgba(15,23,42,.04),0 8px 24px -12px rgba(15,23,42,.12);
  --sh-2:0 16px 36px -16px rgba(15,23,42,.20);
  --focus-ring:0 0 0 3px rgba(22,82,217,.22);
  --sec-gap:96px;
}
*{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:1.75;
  color:var(--c-text);
  background:var(--c-bg);
  overflow-x:hidden;
}
img{max-width:100%;height:auto;display:block}
a{color:var(--c-primary);text-decoration:none;transition:color .2s ease}
a:hover{color:var(--c-primary-dark)}
button{font-family:inherit}
h1,h2,h3,h4{color:var(--c-title);font-weight:600;line-height:1.35;margin:0}
p{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
.container{max-width:1200px;padding-left:24px;padding-right:24px;margin:0 auto}
.section{padding:var(--sec-gap) 0}
.section-tight{padding:64px 0}
.section-head{margin-bottom:40px}
.section-head .eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;font-weight:600;color:var(--c-primary);
  background:var(--c-primary-soft);border-radius:var(--r-pill);
  padding:6px 14px;margin-bottom:14px;
}
.section-head h2{font-size:clamp(1.375rem,2.2vw,1.875rem)}
.section-head p{margin-top:12px;color:var(--c-text);max-width:720px}
.txt-accent{color:var(--c-accent)}

/* ---------- 按钮 ---------- */
.btn-main,.btn-line,.btn-ghost{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:46px;padding:0 22px;border-radius:var(--r-btn);
  font-size:15px;font-weight:600;cursor:pointer;border:1px solid transparent;
  transition:transform .18s ease,box-shadow .18s ease,background-color .18s ease,color .18s ease,border-color .18s ease;
}
.btn-main{background:var(--c-accent);color:#fff;box-shadow:0 10px 22px -12px rgba(18,184,134,.75)}
.btn-main:hover{background:var(--c-accent-dark);color:#fff;transform:translateY(-2px);box-shadow:var(--sh-2)}
.btn-line{background:#fff;color:var(--c-primary);border-color:var(--c-primary)}
.btn-line:hover{background:var(--c-primary-soft);color:var(--c-primary-dark);transform:translateY(-2px)}
.btn-ghost{background:transparent;color:var(--c-primary);padding:0 8px;height:auto;border-bottom:1px dashed var(--c-primary);border-radius:0}
.btn-ghost:hover{color:var(--c-primary-dark);border-bottom-color:var(--c-primary-dark)}
.btn-main:focus-visible,.btn-line:focus-visible,.btn-ghost:focus-visible,.nav-toggle:focus-visible,
.news-card a:focus-visible,.thumb-btn:focus-visible,input:focus-visible{outline:none;box-shadow:var(--focus-ring)}
.btn-pill{height:40px;padding:0 20px;border-radius:var(--r-pill);font-size:14px}

/* ---------- 头部导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:1040;background:#fff;border-bottom:1px solid var(--c-border);
  transition:box-shadow .25s ease;
}
.site-header.is-scrolled{box-shadow:var(--sh-1)}
.header-inner{display:flex;align-items:center;gap:24px;height:68px}
.brand{display:flex;align-items:center;gap:10px;flex-shrink:0}
.brand-mark{
  width:36px;height:36px;border-radius:11px;background:linear-gradient(135deg,var(--c-primary),var(--c-primary-dark));
  color:#fff;display:flex;align-items:center;justify-content:center;font-size:16px;
}
.brand-text{font-size:17px;font-weight:600;color:var(--c-title);white-space:nowrap}
.main-nav{display:flex;align-items:center;gap:6px;margin-left:8px}
.main-nav .nav-link{
  position:relative;display:inline-flex;align-items:center;height:68px;padding:0 14px;
  font-size:15px;font-weight:500;color:#334155;
}
.main-nav .nav-link:hover{color:var(--c-primary)}
.main-nav .nav-link.active{color:var(--c-primary);font-weight:600}
.main-nav .nav-link.active::after{
  content:"";position:absolute;left:14px;right:14px;bottom:16px;height:2px;
  background:var(--c-primary);border-radius:2px;
}
.header-actions{display:flex;align-items:center;gap:12px;margin-left:auto}
.search-box{
  display:flex;align-items:center;gap:8px;height:40px;width:228px;
  padding:0 14px;border:1px solid var(--c-border);border-radius:var(--r-pill);
  background:var(--c-bg);transition:border-color .2s ease,background-color .2s ease;
}
.search-box i{color:var(--c-muted);font-size:14px}
.search-box input{border:0;background:transparent;outline:none;font-size:14px;color:var(--c-title);width:100%}
.search-box input::placeholder{color:var(--c-muted)}
.search-box:focus-within{border-color:var(--c-primary);background:#fff;box-shadow:var(--focus-ring)}
.nav-toggle{
  margin-left:auto;width:44px;height:44px;border:1px solid var(--c-border);background:#fff;
  border-radius:12px;color:var(--c-title);font-size:18px;display:flex;align-items:center;justify-content:center;
}
.offcanvas-panel{background:#fff}
.offcanvas-panel .offcanvas-header{border-bottom:1px solid var(--c-border);padding:18px 20px}
.offcanvas-panel .offcanvas-body{padding:16px 20px 28px}
.drawer-nav a{
  display:flex;align-items:center;justify-content:space-between;height:48px;
  font-size:15px;font-weight:500;color:#334155;border-bottom:1px solid var(--c-border);
}
.drawer-nav a.active,.drawer-nav a:hover{color:var(--c-primary)}
.drawer-nav a i{font-size:12px;color:var(--c-muted)}
.drawer-actions{margin-top:20px;display:grid;gap:12px}
.drawer-actions .search-box{width:100%}
.drawer-actions .btn-main,.drawer-actions .btn-line{width:100%}

/* ---------- Hero ---------- */
.hero{
  position:relative;padding:72px 0 88px;overflow:hidden;
  background:linear-gradient(180deg,#FFFFFF 0%,#F2F7FF 100%);
  border-bottom:1px solid var(--c-border);
}
.hero::before{
  content:"";position:absolute;inset:0;
  background-image:radial-gradient(rgba(22,82,217,.16) 1px,transparent 1px);
  background-size:22px 22px;opacity:.32;pointer-events:none;
}
.hero-inner{position:relative;z-index:1}
.status-bar{
  display:inline-flex;align-items:center;gap:9px;background:#fff;border:1px solid var(--c-border);
  border-radius:var(--r-pill);padding:7px 16px;font-size:13px;font-weight:500;color:var(--c-text);box-shadow:var(--sh-1);
}
.status-dot{width:8px;height:8px;border-radius:50%;background:var(--c-accent);box-shadow:0 0 0 4px var(--c-accent-soft)}
.hero h1{font-size:clamp(1.75rem,3.2vw,2.75rem);margin:20px 0 0;font-weight:600}
.hero-sub{margin-top:16px;font-size:17px;line-height:1.8;color:var(--c-text);max-width:600px}
.hero-btns{margin-top:28px;display:flex;flex-wrap:wrap;gap:12px}
.hero-metrics{display:flex;gap:36px;margin-top:38px;padding-top:26px;border-top:1px dashed var(--c-border);flex-wrap:nowrap;overflow-x:auto}
.hero-metrics li{flex-shrink:0}
.hero-metrics .num{font-size:20px;font-weight:700;color:var(--c-title);font-variant-numeric:tabular-nums;display:block}
.hero-metrics .lab{font-size:13px;color:var(--c-muted)}
.hero-visual{position:relative}
.hero-visual img{width:100%;border-radius:var(--r-img);box-shadow:var(--sh-2);object-fit:cover;aspect-ratio:16/11}
.float-card{
  position:absolute;left:-18px;bottom:-24px;background:#fff;border:1px solid var(--c-border);
  border-radius:var(--r-card);box-shadow:var(--sh-2);padding:16px 18px;display:flex;gap:14px;align-items:center;max-width:290px;
}
.float-card .ico{
  width:42px;height:42px;border-radius:12px;background:var(--c-accent-soft);color:var(--c-accent-dark);
  display:flex;align-items:center;justify-content:center;font-size:18px;flex-shrink:0;
}
.float-card strong{display:block;font-size:14px;color:var(--c-title)}
.float-card span{font-size:12.5px;color:var(--c-muted)}

/* ---------- Bento ---------- */
.bento{display:grid;grid-template-columns:1.35fr 1fr 1fr;gap:24px}
.bento-card{
  background:var(--c-card);border:1px solid var(--c-border);border-radius:var(--r-card);
  padding:30px;box-shadow:var(--sh-1);transition:transform .22s ease,box-shadow .22s ease;
  display:flex;flex-direction:column;gap:14px;
}
.bento-card:hover{transform:translateY(-2px);box-shadow:var(--sh-2)}
.bento-card.main{grid-row:span 2;background:linear-gradient(180deg,#fff 0%,#F7FAFF 100%)}
.bento-card .ico{
  width:48px;height:48px;border-radius:14px;background:var(--c-primary-soft);color:var(--c-primary);
  display:flex;align-items:center;justify-content:center;font-size:22px;
}
.bento-card .ico.accent{background:var(--c-accent-soft);color:var(--c-accent-dark)}
.bento-card h3{font-size:1.25rem}
.bento-card p{font-size:14.5px;color:var(--c-text)}
.bento-card .mini-list{margin-top:auto;display:grid;gap:10px;padding-top:16px;border-top:1px dashed var(--c-border)}
.bento-card .mini-list li{display:flex;gap:10px;font-size:14px;color:var(--c-text)}
.bento-card .mini-list i{color:var(--c-accent);font-size:13px;margin-top:5px}
.bento-card .shot{margin-top:auto;border-radius:12px;overflow:hidden;border:1px solid var(--c-border)}
.bento-card .shot img{width:100%;aspect-ratio:16/10;object-fit:cover}

/* ---------- zigzag ---------- */
.zigzag{display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:center}
.zigzag+.zigzag{margin-top:64px}
.zigzag .zz-media img{width:100%;border-radius:var(--r-img);box-shadow:var(--sh-1);aspect-ratio:16/11;object-fit:cover}
.zigzag h3{font-size:1.5rem;margin-bottom:14px}
.zigzag p{margin-bottom:14px}
.step-list{display:grid;gap:14px}
.step-list li{display:flex;gap:14px;align-items:flex-start;font-size:15px}
.step-num{
  width:28px;height:28px;border-radius:9px;background:var(--c-primary-soft);color:var(--c-primary);
  font-size:13px;font-weight:700;display:flex;align-items:center;justify-content:center;flex-shrink:0;font-variant-numeric:tabular-nums;
}
.tag-row{display:flex;flex-wrap:wrap;gap:10px;margin-top:8px}
.tag{
  display:inline-flex;align-items:center;gap:6px;font-size:13px;font-weight:500;color:var(--c-primary);
  background:var(--c-primary-soft);border-radius:var(--r-pill);padding:5px 13px;
}
.tag.accent{color:var(--c-accent-dark);background:var(--c-accent-soft)}

/* ---------- 轮播 ---------- */
.shot-wrap{background:#fff;border:1px solid var(--c-border);border-radius:var(--r-card);padding:24px;box-shadow:var(--sh-1)}
.carousel-item img{width:100%;aspect-ratio:16/10;object-fit:cover;border-radius:12px}
.carousel-indicators{position:static;margin:18px 0 0;justify-content:center;gap:8px}
.carousel-indicators [data-bs-target]{
  width:24px;height:4px;border-radius:2px;background:var(--c-border);border:0;opacity:1;margin:0;transition:background-color .2s ease;
}
.carousel-indicators .active{background:var(--c-primary)}
.carousel-control-prev,.carousel-control-next{
  width:40px;height:40px;border-radius:50%;background:#fff;border:1px solid var(--c-primary);
  opacity:1;top:50%;transform:translateY(-50%);color:var(--c-primary);
}
.carousel-control-prev{left:-6px}
.carousel-control-next{right:-6px}
.carousel-control-prev:hover,.carousel-control-next:hover{background:var(--c-primary-soft)}
.carousel-control-prev i,.carousel-control-next i{font-size:14px}
.shot-thumbs{display:grid;grid-template-columns:repeat(3,1fr);gap:12px;margin-top:18px}
.thumb-btn{
  border:1px solid var(--c-border);background:#fff;border-radius:10px;padding:1px;cursor:pointer;
  overflow:hidden;transition:border-color .2s ease,transform .2s ease;
}
.thumb-btn img{width:100%;aspect-ratio:16/10;object-fit:cover;border-radius:9px}
.thumb-btn:hover{transform:translateY(-2px)}
.thumb-btn.active{border-color:var(--c-primary);box-shadow:var(--focus-ring)}

/* ---------- 系统要求 ---------- */
.spec-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:24px}
.spec-card{background:#fff;border:1px solid var(--c-border);border-radius:var(--r-card);padding:28px;box-shadow:var(--sh-1)}
.spec-card h3{display:flex;align-items:center;gap:10px;font-size:1.125rem;margin-bottom:18px}
.spec-card h3 .dot{width:10px;height:10px;border-radius:50%;background:var(--c-primary)}
.spec-card.recommend h3 .dot{background:var(--c-accent)}
.spec-list{display:grid;gap:0}
.spec-list li{
  display:flex;justify-content:space-between;gap:16px;padding:12px 0;border-bottom:1px dashed var(--c-border);font-size:14.5px;
}
.spec-list li:last-child{border-bottom:0}
.spec-list dt{color:var(--c-muted);flex-shrink:0}
.spec-list dd{margin:0;color:var(--c-title);font-weight:500;text-align:right}

/* ---------- 评价墙 ---------- */
.review-wall{columns:3;column-gap:24px}
.review-card{
  break-inside:avoid;background:#fff;border:1px solid var(--c-border);border-radius:var(--r-card);
  padding:22px;margin-bottom:24px;box-shadow:var(--sh-1);transition:transform .22s ease,box-shadow .22s ease;
}
.review-card:hover{transform:translateY(-2px);box-shadow:var(--sh-2)}
.review-top{display:flex;align-items:center;gap:12px;margin-bottom:14px}
.avatar{
  width:42px;height:42px;border-radius:50%;background:var(--c-primary-soft);color:var(--c-primary);
  font-weight:700;font-size:15px;display:flex;align-items:center;justify-content:center;flex-shrink:0;
}
.review-top strong{display:block;font-size:14.5px;color:var(--c-title)}
.review-top span{font-size:12.5px;color:var(--c-muted)}
.stars{margin-left:auto;color:#F2A93B;font-size:12px;letter-spacing:1px}
.review-card p{font-size:14.5px}

/* ---------- 下载 ---------- */
.dl-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.dl-card{
  background:#fff;border:1px solid var(--c-border);border-radius:var(--r-card);padding:28px;
  box-shadow:var(--sh-1);display:flex;flex-direction:column;gap:18px;transition:transform .22s ease,box-shadow .22s ease;
}
.dl-card:hover{transform:translateY(-2px);box-shadow:var(--sh-2)}
.dl-card h3{font-size:1.125rem;display:flex;align-items:center;gap:10px}
.dl-card h3 i{color:var(--c-primary)}
.dl-card p{font-size:14.5px}
.dl-card .btn-main,.dl-card .btn-line{width:100%}
.qr-box{display:flex;align-items:center;gap:16px}
.qr-code{
  width:120px;height:120px;border-radius:12px;border:1px solid var(--c-border);flex-shrink:0;
  background-image:repeating-conic-gradient(#0F172A 0% 25%,#FFFFFF 0% 50%);
  background-size:12px 12px;background-position:0 0;
}
.qr-text{font-size:13px;color:var(--c-muted);line-height:1.7}
.file-info{display:grid;gap:8px;font-size:13.5px;border-top:1px dashed var(--c-border);padding-top:16px}
.file-info li{display:flex;justify-content:space-between;gap:12px}
.file-info span:first-child{color:var(--c-muted)}
.file-info span:last-child{color:var(--c-title);font-variant-numeric:tabular-nums}

/* ---------- 资讯列表 ---------- */
.news-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.news-card{
  background:#fff;border:1px solid var(--c-border);border-radius:var(--r-card);overflow:hidden;
  box-shadow:var(--sh-1);display:flex;flex-direction:column;transition:transform .22s ease,box-shadow .22s ease;
}
.news-card:hover{transform:translateY(-2px);box-shadow:var(--sh-2)}
.news-thumb{position:relative;display:block}
.news-thumb img{width:100%;aspect-ratio:16/10;object-fit:cover}
.news-badge{
  position:absolute;left:12px;bottom:12px;background:rgba(232,240,254,.94);color:var(--c-primary);
  font-size:12.5px;font-weight:600;border-radius:var(--r-pill);padding:4px 12px;
}
.news-body{padding:20px;display:flex;flex-direction:column;gap:10px;flex:1}
.news-body h3{font-size:17px;line-height:1.5;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.news-body h3 a{color:var(--c-title)}
.news-card:hover .news-body h3 a{color:var(--c-primary)}
.news-body .excerpt{
  font-size:14px;color:var(--c-text);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.news-meta{
  margin-top:auto;display:flex;align-items:center;justify-content:space-between;
  font-size:12.5px;color:var(--c-muted);border-top:1px dashed var(--c-border);padding-top:12px;
}
.news-meta i{font-size:13px;color:var(--c-primary)}
.empty-state{
  background:var(--c-bg);border:1px dashed var(--c-border);border-radius:var(--r-card);
  padding:48px 24px;text-align:center;color:var(--c-muted);
}
.empty-state i{font-size:48px;color:#CBD5E1;display:block;margin-bottom:14px}
.empty-state p{font-size:15px;margin-bottom:16px}
.load-more{margin-top:32px;text-align:center}

/* ---------- FAQ ---------- */
.acc-wrap{max-width:860px;margin:0 auto}
.acc-item{
  background:var(--c-bg);border:1px solid var(--c-border);border-radius:var(--r-card);
  margin-bottom:12px;overflow:hidden;transition:background-color .2s ease;
}
.acc-item .accordion-button{
  background:transparent;border:0;box-shadow:none;color:var(--c-title);font-size:16px;font-weight:600;
  padding:18px 20px;display:flex;align-items:center;gap:12px;border-radius:var(--r-card);
}
.acc-item .accordion-button:not(.collapsed){
  background:#fff;color:var(--c-primary);box-shadow:inset 3px 0 0 var(--c-primary);
}
.acc-item .accordion-button::after{
  margin-left:auto;width:20px;height:20px;background:none;content:"\f078";font-family:"Font Awesome 6 Free";
  font-weight:900;font-size:12px;color:var(--c-muted);display:flex;align-items:center;justify-content:center;
  transition:transform .25s ease,color .2s ease;
}
.acc-item .accordion-button:not(.collapsed)::after{transform:rotate(180deg);color:var(--c-primary)}
.acc-item .accordion-button:focus{box-shadow:var(--focus-ring)}
.acc-item .accordion-body{padding:0 20px 20px 20px;font-size:14.5px;color:var(--c-text);background:#fff}
.acc-num{
  width:24px;height:24px;border-radius:50%;background:#fff;border:1px solid var(--c-border);
  color:var(--c-primary);font-size:12px;font-weight:700;display:flex;align-items:center;justify-content:center;flex-shrink:0;
}
.acc-item .accordion-button:not(.collapsed) .acc-num{background:var(--c-primary);border-color:var(--c-primary);color:#fff}

/* ---------- CTA ---------- */
.cta-band{
  background:#fff;border:1px solid var(--c-primary);border-radius:18px;padding:40px;
  display:flex;align-items:center;justify-content:space-between;gap:32px;box-shadow:var(--sh-1);
}
.cta-band h2{font-size:clamp(1.25rem,2vw,1.75rem);margin-bottom:10px}
.cta-band p{max-width:620px}
.cta-actions{display:flex;gap:12px;flex-wrap:wrap;flex-shrink:0}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--c-footer);color:#C7D2E4;padding:64px 0 0;margin-top:var(--sec-gap)}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:40px}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:18px}
.footer-brand .brand-mark{background:linear-gradient(135deg,#2C6BFF,#12B886)}
.footer-brand span{color:#fff;font-size:17px;font-weight:600}
.site-footer p{font-size:14px;color:#C7D2E4;line-height:1.8}
.site-footer h4{color:#fff;font-size:15px;margin-bottom:18px}
.footer-links{display:grid;gap:11px}
.footer-links a{color:#C7D2E4;font-size:14px;border-bottom:1px solid transparent;transition:color .2s ease,border-color .2s ease}
.footer-links a:hover{color:#fff;border-bottom-color:#fff}
.footer-contact{display:grid;gap:12px;font-size:14px}
.footer-contact li{display:flex;gap:10px;align-items:flex-start}
.footer-contact i{color:var(--c-accent);margin-top:4px;font-size:13px}
.footer-bottom{
  margin-top:48px;border-top:1px solid rgba(255,255,255,.14);padding:22px 0;
  display:flex;flex-wrap:wrap;gap:14px;justify-content:space-between;font-size:13px;color:#93A4C4;
}
.footer-bottom a{color:#93A4C4}
.footer-bottom a:hover{color:#fff}

/* ---------- 响应式 ---------- */
@media (max-width:1199.98px){
  :root{--sec-gap:80px}
  .review-wall{columns:2}
  .bento{grid-template-columns:1fr 1fr}
  .bento-card.main{grid-row:auto;grid-column:span 2}
}
@media (max-width:991.98px){
  :root{--sec-gap:68px}
  .hero{padding:48px 0 72px}
  .hero-visual{margin-top:36px}
  .float-card{left:12px;bottom:-20px}
  .zigzag{grid-template-columns:1fr;gap:28px}
  .zigzag.reverse .zz-media{order:-1}
  .zigzag+.zigzag{margin-top:48px}
  .dl-grid{grid-template-columns:1fr}
  .news-grid{grid-template-columns:repeat(2,1fr)}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
  .cta-band{flex-direction:column;align-items:flex-start;padding:32px}
}
@media (max-width:767.98px){
  :root{--sec-gap:56px}
  .container{padding-left:16px;padding-right:16px}
  .hero{padding:36px 0 60px}
  .hero h1{font-size:1.75rem}
  .hero-sub{font-size:15.5px}
  .hero-metrics{gap:26px}
  .hero-metrics .num{font-size:18px}
  .bento{grid-template-columns:1fr}
  .bento-card.main{grid-column:auto}
  .spec-grid{grid-template-columns:1fr}
  .review-wall{columns:1}
  .news-grid{grid-template-columns:1fr}
  .shot-thumbs{grid-template-columns:repeat(3,1fr);gap:8px}
  .carousel-control-prev,.carousel-control-next{display:none}
  .footer-grid{grid-template-columns:1fr}
  .cta-actions .btn-main,.cta-actions .btn-line{width:100%}
  .section-head{margin-bottom:28px}
}
@media (max-width:575.98px){
  .hero-btns .btn-main,.hero-btns .btn-line{width:100%}
  .float-card{position:static;margin-top:16px;max-width:none}
  .qr-box{flex-direction:column;align-items:flex-start}
}

/* roulang page: article */
:root{
  --c-primary:#1652D9;
  --c-primary-d:#0E3AA8;
  --c-primary-l:#E8F0FE;
  --c-accent:#12B886;
  --c-accent-d:#0B8F69;
  --c-accent-l:#E6F7F1;
  --t-900:#0F172A;
  --t-600:#475569;
  --t-400:#94A3B8;
  --line:#E4E9F2;
  --bg:#F5F8FC;
  --card:#FFFFFF;
  --footer-bg:#0A1B3D;
  --footer-text:#C7D2E4;
  --r-card:14px;
  --r-img:16px;
  --r-btn:10px;
  --sh-1:0 1px 2px rgba(15,23,42,.04),0 8px 24px -12px rgba(15,23,42,.12);
  --sh-2:0 16px 36px -16px rgba(15,23,42,.20);
  --c-radius-pill:999px;
}
*{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:1.75;
  color:var(--t-600);
  background:var(--bg);
}
img{max-width:100%;height:auto;display:block}
a{color:var(--c-primary);text-decoration:none;transition:color .2s ease}
a:hover{color:var(--c-primary-d)}
button{font-family:inherit}
h1,h2,h3,h4,h5{color:var(--t-900);margin:0 0 .6em;font-weight:600;line-height:1.35}
p{margin:0 0 1em}
ul,ol{margin:0 0 1em;padding-left:1.2em}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px}
.narrow{max-width:860px}
a:focus-visible,button:focus-visible,input:focus-visible,summary:focus-visible{
  outline:3px solid rgba(22,82,217,.22);
  outline-offset:2px;
  border-radius:6px;
}

/* ============ 顶部导航 ============ */
.site-header{
  position:sticky;top:0;z-index:1040;
  background:#fff;
  border-bottom:1px solid var(--line);
  transition:box-shadow .25s ease;
}
.site-header.is-scrolled{box-shadow:var(--sh-1)}
.header-inner{
  display:flex;align-items:center;justify-content:space-between;
  gap:20px;min-height:68px;padding-top:8px;padding-bottom:8px;
}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto}
.brand-mark{
  width:36px;height:36px;border-radius:11px;
  background:linear-gradient(135deg,var(--c-primary),var(--c-primary-d));
  color:#fff;display:inline-flex;align-items:center;justify-content:center;
  font-size:16px;
}
.brand-text{font-size:17px;font-weight:600;color:var(--t-900);letter-spacing:.2px}
.main-nav{display:flex;align-items:center;gap:6px;flex:1 1 auto;justify-content:center}
.main-nav .nav-link{
  position:relative;display:inline-flex;align-items:center;height:40px;
  padding:0 12px;font-size:15px;font-weight:500;color:var(--t-600);
  border-radius:var(--r-btn);transition:color .2s ease,background .2s ease;
}
.main-nav .nav-link:hover{color:var(--c-primary);background:var(--c-primary-l)}
.main-nav .nav-link.active{color:var(--c-primary);font-weight:600}
.main-nav .nav-link.active::after{
  content:"";position:absolute;left:12px;right:12px;bottom:2px;
  height:2px;width:60%;background:var(--c-primary);border-radius:2px;
}
.header-tools{display:flex;align-items:center;gap:12px;flex:0 0 auto}
.search-box{position:relative;width:220px}
.search-box i{
  position:absolute;left:12px;top:50%;transform:translateY(-50%);
  font-size:13px;color:var(--t-400);
}
.search-box input{
  width:100%;height:40px;padding:0 12px 0 34px;
  border:1px solid var(--line);border-radius:var(--r-radius-pill);
  background:#F8FAFD;font-size:14px;color:var(--t-900);
  transition:border-color .2s ease,background .2s ease,box-shadow .2s ease;
}
.search-box input::placeholder{color:var(--t-400)}
.search-box input:focus{
  outline:none;background:#fff;border-color:var(--c-primary);
  box-shadow:0 0 0 3px rgba(22,82,217,.18);
}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:44px;padding:0 20px;font-size:15px;font-weight:600;
  border-radius:var(--r-btn);border:1px solid transparent;cursor:pointer;
  transition:transform .2s ease,background .2s ease,color .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.btn:focus-visible{outline:3px solid rgba(22,82,217,.22);outline-offset:2px}
.btn-primary-x{background:var(--c-primary);color:#fff;box-shadow:var(--sh-1)}
.btn-primary-x:hover{background:var(--c-primary-d);color:#fff;transform:translateY(-2px);box-shadow:var(--sh-2)}
.btn-accent-x{background:var(--c-accent);color:#fff;box-shadow:var(--sh-1)}
.btn-accent-x:hover{background:var(--c-accent-d);color:#fff;transform:translateY(-2px);box-shadow:var(--sh-2)}
.btn-outline-x{background:#fff;color:var(--c-primary);border-color:var(--c-primary)}
.btn-outline-x:hover{background:var(--c-primary-l);color:var(--c-primary-d);transform:translateY(-2px)}
.btn-ghost-x{background:transparent;color:var(--c-primary);padding:0 6px;height:auto;border:0}
.btn-ghost-x span{border-bottom:1px dashed var(--c-primary);padding-bottom:2px}
.btn-pill{border-radius:var(--r-radius-pill);height:40px;padding:0 20px;font-size:14px}
.btn-sm-x{height:38px;padding:0 16px;font-size:14px}
.burger{
  width:44px;height:44px;border:1px solid var(--line);background:#fff;
  border-radius:var(--r-btn);color:var(--t-900);display:inline-flex;
  align-items:center;justify-content:center;font-size:17px;
}
.mobile-panel{background:#fff}
.mobile-panel .nav-link{
  display:flex;align-items:center;min-height:48px;padding:0 4px;
  font-size:16px;color:var(--t-900);border-bottom:1px solid var(--line);
}
.mobile-panel .nav-link.active{color:var(--c-primary);font-weight:600}
.mobile-panel .search-box{width:100%;margin:18px 0 14px}

/* ============ 面包屑与文章头 ============ */
.page-hero{
  background:linear-gradient(180deg,#FFFFFF 0%,#F2F7FF 100%);
  border-bottom:1px solid var(--line);
  padding:26px 0 40px;
  position:relative;
  overflow:hidden;
}
.page-hero::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:radial-gradient(rgba(22,82,217,.06) 1px,transparent 1px);
  background-size:22px 22px;opacity:.7;
}
.page-hero .container{position:relative;z-index:2}
.breadcrumb-x{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--t-400);margin-bottom:16px}
.breadcrumb-x a{color:var(--t-600)}
.breadcrumb-x a:hover{color:var(--c-primary)}
.breadcrumb-x .sep{color:#CBD5E1}
.breadcrumb-x .current{color:var(--t-900);font-weight:500}
.article-title{
  font-size:clamp(1.6rem,3vw,2.4rem);
  font-weight:600;letter-spacing:.2px;margin:0 0 18px;max-width:900px;
}
.meta-bar{display:flex;flex-wrap:wrap;align-items:center;gap:10px 18px;font-size:14px;color:var(--t-600)}
.meta-chip{
  display:inline-flex;align-items:center;gap:6px;height:28px;padding:0 12px;
  background:var(--c-primary-l);color:var(--c-primary);font-size:13px;font-weight:600;
  border-radius:var(--r-radius-pill);
}
.meta-item{display:inline-flex;align-items:center;gap:7px;color:var(--t-400)}
.meta-item i{font-size:13px}
.meta-key{color:var(--t-900);font-weight:600;font-variant-numeric:tabular-nums}

/* ============ 正文布局 ============ */
.article-main{padding:48px 0 24px}
.article-layout{
  display:grid;grid-template-columns:minmax(0,1fr) 280px;
  gap:36px;align-items:start;
}
.article-panel{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);
  box-shadow:var(--sh-1);padding:36px 40px;
}
.article-cover{
  border-radius:var(--r-img);overflow:hidden;margin-bottom:28px;border:1px solid var(--line);
}
.article-cover img{width:100%;aspect-ratio:16/9;object-fit:cover}
.article-content{max-width:820px;font-size:16px;line-height:1.85;color:var(--t-600)}
.article-content p{margin:0 0 1.05em}
.article-content h2{
  position:relative;font-size:clamp(1.25rem,2vw,1.6rem);margin:2em 0 .8em;padding-left:16px;
}
.article-content h2::before{
  content:"";position:absolute;left:0;top:.28em;width:4px;height:18px;
  background:var(--c-primary);border-radius:3px;
}
.article-content h3{font-size:1.125rem;margin:1.6em 0 .7em;color:var(--t-900)}
.article-content ul,.article-content ol{padding-left:1.3em}
.article-content ul li{list-style:none;position:relative;padding-left:6px;margin-bottom:.5em}
.article-content ul li::before{
  content:"";position:absolute;left:-14px;top:.72em;width:6px;height:6px;
  border-radius:50%;background:var(--c-primary);
}
.article-content ol{counter-reset:step}
.article-content ol li{list-style:none;counter-increment:step;position:relative;padding-left:26px;margin-bottom:.7em}
.article-content ol li::before{
  content:counter(step);position:absolute;left:0;top:.15em;
  width:20px;height:20px;border-radius:50%;background:var(--c-primary-l);
  color:var(--c-primary);font-size:12px;font-weight:700;
  display:inline-flex;align-items:center;justify-content:center;
}
.article-content blockquote{
  margin:1.6em 0;padding:16px 20px;background:var(--c-primary-l);
  border-left:4px solid var(--c-primary);border-radius:0 12px 12px 0;
  color:#274068;
}
.article-content blockquote p:last-child{margin-bottom:0}
.article-content img{border-radius:12px;margin:1.4em 0 .5em}
.article-content table{width:100%;border-collapse:collapse;margin:1.4em 0;font-size:14.5px}
.article-content th,.article-content td{border:1px solid var(--line);padding:10px 14px;text-align:left}
.article-content th{background:#F8FAFD;color:var(--t-900);font-weight:600}
.article-content a{
  color:var(--c-primary);border-bottom:1px dashed var(--c-primary);
}
.article-content a:hover{color:var(--c-primary-d);border-bottom-color:var(--c-primary-d)}
.article-content code{
  background:#F1F5FB;color:#1E3A8A;padding:2px 6px;border-radius:6px;font-size:14px;
}

/* 侧栏目录 */
.article-aside{position:sticky;top:92px}
.toc-card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);
  box-shadow:var(--sh-1);padding:20px 20px 16px;
}
.toc-title{
  font-size:15px;font-weight:600;margin:0 0 12px;
  display:flex;align-items:center;gap:8px;
}
.toc-title i{color:var(--c-primary);font-size:13px}
.toc-list{display:flex;flex-direction:column;gap:2px;max-height:52vh;overflow:auto}
.toc-link{
  display:block;padding:8px 10px;font-size:14px;color:var(--t-600);
  border-left:2px solid transparent;border-radius:0 8px 8px 0;
  transition:background .2s ease,color .2s ease,border-color .2s ease;
}
.toc-link:hover{background:#F8FAFD;color:var(--c-primary)}
.toc-link.is-sub{padding-left:22px;font-size:13.5px;color:var(--t-400)}
.toc-link.active{
  color:var(--c-primary);background:var(--c-primary-l);
  border-left-color:var(--c-primary);font-weight:600;
}
.aside-tip{
  margin-top:16px;background:var(--c-accent-l);border:1px solid #C8EEDF;
  border-radius:var(--r-card);padding:16px 18px;font-size:13.5px;color:#116149;
}
.aside-tip strong{display:block;color:#0B5B44;font-size:14px;margin-bottom:4px}

/* 标签 / 上下篇 */
.article-foot{margin-top:32px;padding-top:24px;border-top:1px solid var(--line)}
.tag-row{display:flex;flex-wrap:wrap;gap:10px;align-items:center;margin-bottom:22px}
.tag-row .label{font-size:13px;color:var(--t-400);margin-right:2px}
.tag-x{
  display:inline-flex;align-items:center;height:30px;padding:0 14px;
  background:#F5F8FC;border:1px solid var(--line);border-radius:var(--r-radius-pill);
  font-size:13px;color:var(--t-600);
}
.tag-x:hover{border-color:var(--c-primary);color:var(--c-primary);background:var(--c-primary-l)}
.pager{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px}
.pager a{
  display:flex;flex-direction:column;gap:4px;padding:16px 18px;
  background:#F8FAFD;border:1px solid var(--line);border-radius:var(--r-card);
  color:var(--t-900);font-size:14.5px;font-weight:500;
  transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease,background .2s ease;
}
.pager a:hover{transform:translateY(-2px);box-shadow:var(--sh-1);border-color:var(--c-primary);background:#fff;color:var(--c-primary)}
.pager .dir{font-size:12px;color:var(--t-400);font-weight:400}
.pager a.text-end{align-items:flex-end;text-align:right}

/* 空态 */
.empty-state{
  text-align:center;padding:56px 24px;background:var(--bg);
  border:1px dashed var(--line);border-radius:var(--r-card);
}
.empty-state i{font-size:44px;color:#C7D2E4;margin-bottom:14px;display:block}
.empty-state h3{font-size:1.1rem;margin-bottom:8px}
.empty-state p{color:var(--t-400);font-size:14px;margin-bottom:18px}

/* ============ 通用板块 ============ */
.section{padding:72px 0}
.section-alt{background:#fff;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.section-head{margin-bottom:32px;max-width:760px}
.section-head .eyebrow{
  display:inline-flex;align-items:center;gap:8px;height:28px;padding:0 12px;
  background:var(--c-primary-l);color:var(--c-primary);font-size:13px;font-weight:600;
  border-radius:var(--r-radius-pill);margin-bottom:14px;
}
.section-head h2{font-size:clamp(1.375rem,2.2vw,1.875rem);margin-bottom:10px}
.section-head p{color:var(--t-600);font-size:15px;margin:0}
.card-grid{display:grid;gap:24px;grid-template-columns:repeat(3,minmax(0,1fr))}
.card-x{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);
  box-shadow:var(--sh-1);overflow:hidden;display:flex;flex-direction:column;
  transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease;
}
.card-x:hover{transform:translateY(-4px);box-shadow:var(--sh-2);border-color:#D7E2F5}
.card-x .thumb{position:relative;overflow:hidden}
.card-x .thumb img{width:100%;aspect-ratio:16/10;object-fit:cover;transition:transform .5s ease}
.card-x:hover .thumb img{transform:scale(1.04)}
.badge-x{
  position:absolute;left:12px;bottom:12px;
  display:inline-flex;align-items:center;height:26px;padding:0 10px;
  background:rgba(255,255,255,.94);color:var(--c-primary);
  font-size:12px;font-weight:600;border-radius:var(--r-radius-pill);
}
.card-body-x{padding:18px 20px 20px;display:flex;flex-direction:column;flex:1}
.card-body-x h3{font-size:17px;line-height:1.5;margin-bottom:8px;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.card-x:hover .card-body-x h3{color:var(--c-primary)}
.card-body-x p{font-size:14px;color:var(--t-600);line-height:1.7;margin-bottom:14px;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.card-meta{
  margin-top:auto;display:flex;align-items:center;justify-content:space-between;
  font-size:13px;color:var(--t-400);
}
.card-meta .go{color:var(--c-primary);font-size:13px}

/* CTA 条 */
.cta-band{padding:0 0 72px}
.cta-card{
  background:linear-gradient(180deg,#FFFFFF 0%,#F2F7FF 100%);
  border:1px solid #C9DCFB;border-radius:18px;padding:32px 36px;
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:22px;
  box-shadow:var(--sh-1);
}
.cta-card h2{font-size:clamp(1.25rem,2vw,1.6rem);margin-bottom:8px}
.cta-card p{margin:0;font-size:14.5px;color:var(--t-600);max-width:620px}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px}

/* 页脚 */
.site-footer{background:var(--footer-bg);color:var(--footer-text);padding:56px 0 0;margin-top:0}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.3fr;gap:32px}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:14px;font-size:17px;font-weight:600;color:#fff}
.footer-brand .brand-mark{background:linear-gradient(135deg,#2F6BEA,#1652D9)}
.site-footer p{font-size:14px;line-height:1.8;color:var(--footer-text);margin:0}
.site-footer h4{color:#fff;font-size:15px;margin-bottom:16px}
.footer-links,.footer-contact{list-style:none;margin:0;padding:0}
.footer-links li{margin-bottom:10px}
.footer-links a{color:var(--footer-text);font-size:14px;border-bottom:2px solid transparent;padding-bottom:2px;transition:color .2s ease,border-color .2s ease}
.footer-links a:hover{color:#fff;border-bottom-color:rgba(255,255,255,.6)}
.footer-contact li{display:flex;gap:10px;font-size:14px;margin-bottom:12px;color:var(--footer-text)}
.footer-contact i{color:#7FA6F0;margin-top:5px;font-size:13px}
.footer-bottom{
  margin-top:40px;padding:18px 0;border-top:1px solid rgba(255,255,255,.12);
  display:flex;flex-wrap:wrap;gap:10px 24px;justify-content:space-between;
  font-size:13px;color:#8FA3C6;
}

/* 返回条 */
.back-row{display:flex;flex-wrap:wrap;gap:12px;margin-top:26px}

@media (max-width:1199.98px){
  .article-layout{grid-template-columns:minmax(0,1fr)}
  .article-aside{position:static;order:-1}
  .toc-list{max-height:none}
}
@media (max-width:991.98px){
  .header-inner{min-height:64px}
  .card-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .footer-grid{grid-template-columns:1fr 1fr}
  .section{padding:56px 0}
  .article-panel{padding:28px 24px}
}
@media (max-width:767.98px){
  .container{padding:0 16px}
  .page-hero{padding:20px 0 30px}
  .article-main{padding:32px 0 16px}
  .article-panel{padding:22px 18px}
  .card-grid{grid-template-columns:1fr}
  .pager{grid-template-columns:1fr}
  .pager a.text-end{align-items:flex-start;text-align:left}
  .footer-grid{grid-template-columns:1fr;gap:26px}
  .section{padding:48px 0}
  .cta-card{padding:24px 20px}
  .cta-band{padding-bottom:48px}
  .article-content{font-size:15.5px}
}
@media (max-width:519.98px){
  .article-title{font-size:1.5rem}
  .cta-actions .btn{width:100%}
}

/* roulang page: category1 */
:root{
  --c-primary:#1652D9;
  --c-primary-dark:#0E3AA8;
  --c-primary-soft:#E8F0FE;
  --c-accent:#12B886;
  --c-accent-dark:#0B8F69;
  --c-accent-soft:#E6F7F1;
  --c-title:#0F172A;
  --c-text:#475569;
  --c-muted:#94A3B8;
  --c-line:#E4E9F2;
  --c-bg:#F5F8FC;
  --c-card:#FFFFFF;
  --c-footer:#0A1B3D;
  --r-card:14px;
  --r-img:16px;
  --r-btn:10px;
  --sh-1:0 1px 2px rgba(15,23,42,.04), 0 8px 24px -12px rgba(15,23,42,.12);
  --sh-2:0 16px 36px -16px rgba(15,23,42,.20);
  --font:-apple-system,"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Noto Sans SC",sans-serif;
}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:var(--font);
  font-size:16px;
  line-height:1.75;
  color:var(--c-text);
  background:var(--c-bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{color:var(--c-primary);text-decoration:none;transition:color .2s ease}
a:hover{color:var(--c-primary-dark)}
button,input{font-family:inherit}
h1,h2,h3,h4,h5{margin:0;color:var(--c-title);font-weight:600;line-height:1.4}
p{margin:0 0 1em}
p:last-child{margin-bottom:0}
:focus-visible{outline:3px solid rgba(22,82,217,.22);outline-offset:2px;border-radius:6px}
.container{max-width:1200px;padding:0 24px;margin:0 auto;width:100%}
@media(max-width:768px){.container{padding:0 16px}}

/* ============ 顶栏 ============ */
.site-header{
  position:sticky;top:0;z-index:1030;
  background:#fff;border-bottom:1px solid var(--c-line);
  transition:box-shadow .25s ease;
}
.site-header.is-scrolled{box-shadow:var(--sh-1)}
.header-inner{display:flex;align-items:center;gap:20px;height:68px}
.brand{display:flex;align-items:center;gap:10px;color:var(--c-title);font-weight:600;font-size:17px;letter-spacing:.2px}
.brand:hover{color:var(--c-title)}
.brand-mark{
  width:34px;height:34px;border-radius:10px;flex:0 0 34px;
  background:linear-gradient(150deg,var(--c-primary),var(--c-primary-dark));
  color:#fff;display:flex;align-items:center;justify-content:center;font-size:15px;
}
.brand-text{white-space:nowrap}
.main-nav{display:flex;align-items:center;gap:6px;margin-left:12px}
.main-nav .nav-link{
  position:relative;display:inline-flex;align-items:center;height:38px;padding:0 12px;
  font-size:15px;font-weight:500;color:var(--c-text);border-radius:8px;
}
.main-nav .nav-link:hover{color:var(--c-primary);background:var(--c-primary-soft)}
.main-nav .nav-link.active{color:var(--c-primary);font-weight:600}
.main-nav .nav-link.active::after{
  content:"";position:absolute;left:50%;transform:translateX(-50%);
  bottom:1px;width:60%;height:2px;border-radius:2px;background:var(--c-primary);
}
.header-tools{display:flex;align-items:center;gap:12px;margin-left:auto}
.nav-search{
  position:relative;display:flex;align-items:center;
  width:230px;height:40px;border:1px solid var(--c-line);border-radius:999px;
  background:#F8FAFD;padding:0 14px;
}
.nav-search i{color:var(--c-muted);font-size:13px;margin-right:8px}
.nav-search input{
  border:0;background:transparent;outline:none;width:100%;
  font-size:14px;color:var(--c-title);height:100%;
}
.nav-search input::placeholder{color:var(--c-muted)}
.nav-search:focus-within{border-color:var(--c-primary);background:#fff;box-shadow:0 0 0 3px rgba(22,82,217,.12)}
.btn-accent-pill{
  display:inline-flex;align-items:center;justify-content:center;gap:6px;
  height:40px;padding:0 20px;border-radius:999px;border:0;
  background:var(--c-accent);color:#fff;font-size:15px;font-weight:600;
  transition:background .2s ease,transform .2s ease,box-shadow .2s ease;
}
.btn-accent-pill:hover{background:var(--c-accent-dark);color:#fff;transform:translateY(-2px);box-shadow:var(--sh-2)}
.nav-toggle{
  margin-left:auto;width:44px;height:44px;border-radius:10px;border:1px solid var(--c-line);
  background:#fff;color:var(--c-title);font-size:18px;
}
.offcanvas.mobile-nav{width:300px;border:0}
.mobile-nav .offcanvas-header{border-bottom:1px solid var(--c-line)}
.mobile-nav .offcanvas-title{font-size:16px;font-weight:600;color:var(--c-title)}
.mobile-nav-list{list-style:none;padding:8px 0;margin:0}
.mobile-nav-list li{border-bottom:1px solid var(--c-line)}
.mobile-nav-list a{
  display:flex;align-items:center;justify-content:space-between;
  height:48px;padding:0 4px;font-size:15px;font-weight:500;color:var(--c-text);
}
.mobile-nav-list a.active{color:var(--c-primary);font-weight:600}
.mobile-nav-search{display:flex;align-items:center;gap:8px;margin:16px 0 12px;
  border:1px solid var(--c-line);border-radius:10px;padding:0 12px;height:44px;background:#F8FAFD}
.mobile-nav-search input{border:0;background:transparent;outline:none;width:100%;font-size:14px;height:100%}

/* ============ 通用按钮 ============ */
.btn-main{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:46px;padding:0 26px;border-radius:var(--r-btn);border:0;
  background:var(--c-accent);color:#fff;font-size:16px;font-weight:600;
  transition:background .2s ease,transform .2s ease,box-shadow .2s ease;
}
.btn-main:hover{background:var(--c-accent-dark);color:#fff;transform:translateY(-2px);box-shadow:var(--sh-2)}
.btn-line{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:46px;padding:0 24px;border-radius:var(--r-btn);
  background:#fff;border:1px solid var(--c-primary);color:var(--c-primary);
  font-size:16px;font-weight:600;transition:background .2s ease,transform .2s ease;
}
.btn-line:hover{background:var(--c-primary-soft);color:var(--c-primary-dark);transform:translateY(-2px)}
.btn-main:focus-visible,.btn-line:focus-visible,.btn-accent-pill:focus-visible{outline:3px solid rgba(22,82,217,.22);outline-offset:2px}

/* ============ 分类 Hero ============ */
.cat-hero{
  position:relative;background:#fff;
  border-bottom:1px solid var(--c-line);
  padding:40px 0 52px;
  overflow:hidden;
}
.cat-hero::before{
  content:"";position:absolute;inset:0;
  background-image:radial-gradient(rgba(22,82,217,.055) 1px,transparent 1px);
  background-size:22px 22px;pointer-events:none;
}
.cat-hero .container{position:relative;z-index:1}
.breadcrumb-line{
  display:flex;align-items:center;gap:8px;flex-wrap:wrap;
  font-size:13.5px;color:var(--c-muted);margin-bottom:20px;
}
.breadcrumb-line a{color:var(--c-muted)}
.breadcrumb-line a:hover{color:var(--c-primary)}
.breadcrumb-line i{font-size:10px}
.cat-hero-grid{display:grid;grid-template-columns:minmax(0,1.55fr) minmax(0,1fr);gap:48px;align-items:center}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  background:var(--c-primary-soft);color:var(--c-primary-dark);
  font-size:13px;font-weight:600;padding:6px 14px;border-radius:999px;margin-bottom:18px;
}
.cat-hero h1{
  font-size:clamp(1.75rem,3.2vw,2.6rem);
  font-weight:600;letter-spacing:-.5px;margin-bottom:16px;
}
.cat-hero .lead{font-size:17px;color:var(--c-text);max-width:640px;margin-bottom:26px}
.hero-meta{display:flex;flex-wrap:wrap;gap:10px}
.chip{
  display:inline-flex;align-items:center;gap:7px;
  background:#F8FAFD;border:1px solid var(--c-line);border-radius:999px;
  padding:7px 14px;font-size:13.5px;color:var(--c-text);
}
.chip i{color:var(--c-primary);font-size:12px}
.cat-hero-figure{position:relative}
.cat-hero-figure img{
  width:100%;border-radius:var(--r-img);border:1px solid var(--c-line);
  box-shadow:var(--sh-1);aspect-ratio:16/11;object-fit:cover;
}
.hero-badge{
  position:absolute;left:-14px;bottom:18px;background:#fff;border:1px solid var(--c-line);
  border-radius:12px;box-shadow:var(--sh-1);padding:10px 16px;display:flex;align-items:center;gap:10px;
}
.hero-badge i{color:var(--c-accent);font-size:16px}
.hero-badge span{font-size:13.5px;font-weight:600;color:var(--c-title);line-height:1.3}
@media(max-width:992px){
  .cat-hero-grid{grid-template-columns:1fr;gap:32px}
  .cat-hero-figure{order:-1}
  .hero-badge{left:12px}
}

/* ============ 板块 ============ */
.section{padding:72px 0}
.section.alt{background:#fff;border-top:1px solid var(--c-line);border-bottom:1px solid var(--c-line)}
@media(max-width:768px){.section{padding:48px 0}}
.section-head{max-width:760px;margin-bottom:40px}
.section-head .tag{
  display:inline-block;font-size:13px;font-weight:600;letter-spacing:.5px;
  color:var(--c-primary);background:var(--c-primary-soft);
  padding:5px 12px;border-radius:999px;margin-bottom:14px;
}
.section-head h2{font-size:clamp(1.375rem,2.2vw,1.875rem);margin-bottom:12px}
.section-head p{font-size:16px;color:var(--c-text)}

/* 双栏说明 */
.two-col{display:grid;grid-template-columns:minmax(0,1.15fr) minmax(0,1fr);gap:44px;align-items:start}
@media(max-width:992px){.two-col{grid-template-columns:1fr;gap:32px}}
.rich-text p{font-size:16.5px;line-height:1.85}
.rich-text strong{color:var(--c-title);font-weight:600}
.check-panel{
  background:#fff;border:1px solid var(--c-line);border-radius:var(--r-card);
  padding:26px 26px 18px;box-shadow:var(--sh-1);
}
.check-panel h3{font-size:17px;margin-bottom:16px;display:flex;align-items:center;gap:9px}
.check-panel h3 i{color:var(--c-primary)}
.check-list{list-style:none;margin:0;padding:0}
.check-list li{display:flex;gap:11px;padding:10px 0;border-bottom:1px dashed var(--c-line);font-size:15px;line-height:1.65}
.check-list li:last-child{border-bottom:0}
.check-list i{color:var(--c-accent);margin-top:5px;font-size:13px}

/* zigzag 左图右文 */
.zig-row{
  display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1.15fr);
  gap:40px;align-items:center;margin-bottom:40px;
  background:#fff;border:1px solid var(--c-line);border-radius:var(--r-card);
  padding:26px;box-shadow:var(--sh-1);transition:box-shadow .25s ease,transform .25s ease;
}
.zig-row:hover{box-shadow:var(--sh-2);transform:translateY(-2px)}
.zig-row:last-child{margin-bottom:0}
.zig-row img{width:100%;border-radius:var(--r-img);aspect-ratio:16/10;object-fit:cover;border:1px solid var(--c-line)}
.zig-num{
  display:inline-flex;align-items:center;justify-content:center;
  width:34px;height:34px;border-radius:10px;background:var(--c-primary-soft);
  color:var(--c-primary);font-weight:700;font-size:15px;margin-bottom:14px;
}
.zig-row h3{font-size:19px;margin-bottom:10px}
.zig-row p{font-size:15.5px;margin-bottom:12px}
.tick-list{list-style:none;padding:0;margin:0;display:flex;flex-wrap:wrap;gap:8px}
.tick-list li{
  font-size:13.5px;color:var(--c-text);background:#F8FAFD;
  border:1px solid var(--c-line);border-radius:999px;padding:5px 12px;
}
@media(max-width:768px){
  .zig-row{grid-template-columns:1fr;gap:20px;padding:18px}
}

/* 2×2 非对称图文卡 */
.asym-grid{display:grid;grid-template-columns:repeat(6,1fr);gap:22px}
.asym-card{
  background:#fff;border:1px solid var(--c-line);border-radius:var(--r-card);
  overflow:hidden;box-shadow:var(--sh-1);display:flex;flex-direction:column;
  transition:box-shadow .25s ease,transform .25s ease;
}
.asym-card:hover{box-shadow:var(--sh-2);transform:translateY(-3px)}
.asym-card img{width:100%;aspect-ratio:16/10;object-fit:cover}
.asym-card .body{padding:20px 22px 22px;flex:1;display:flex;flex-direction:column}
.asym-card h3{font-size:17.5px;margin-bottom:9px}
.asym-card p{font-size:14.8px;color:var(--c-text);flex:1}
.asym-card .meta{margin-top:16px;font-size:13px;color:var(--c-muted);display:flex;align-items:center;gap:8px}
.asym-card .meta i{color:var(--c-primary)}
.asym-wide{grid-column:span 4}
.asym-narrow{grid-column:span 2}
.asym-half{grid-column:span 3}
@media(max-width:992px){
  .asym-grid{grid-template-columns:repeat(2,1fr)}
  .asym-wide,.asym-narrow,.asym-half{grid-column:span 1}
}
@media(max-width:640px){
  .asym-grid{grid-template-columns:1fr}
}

/* 编号流程条 */
.flow-wrap{background:#fff;border:1px solid var(--c-line);border-radius:var(--r-card);padding:32px;box-shadow:var(--sh-1)}
.flow-track{display:grid;grid-template-columns:repeat(6,1fr);gap:0;position:relative}
.flow-item{position:relative;padding:0 14px;text-align:left}
.flow-item::before{
  content:"";position:absolute;top:17px;left:0;right:0;height:2px;
  background:var(--c-line);
}
.flow-item:first-child::before{left:34px}
.flow-item:last-child::before{right:calc(100% - 34px)}
.flow-dot{
  position:relative;z-index:1;width:36px;height:36px;border-radius:50%;
  background:var(--c-primary-soft);color:var(--c-primary);border:2px solid #fff;
  display:flex;align-items:center;justify-content:center;font-weight:700;font-size:14px;
  box-shadow:0 0 0 1px var(--c-line);margin-bottom:14px;
}
.flow-item h4{font-size:15.5px;margin-bottom:6px}
.flow-item p{font-size:13.5px;color:var(--c-text);line-height:1.6}
@media(max-width:1100px){
  .flow-track{grid-template-columns:repeat(3,1fr);row-gap:28px}
  .flow-item::before{display:none}
}
@media(max-width:600px){
  .flow-track{grid-template-columns:1fr;row-gap:20px}
  .flow-wrap{padding:22px}
}

/* 横向对比卡 */
.compare-row{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.compare-card{
  border:1px solid var(--c-line);border-radius:var(--r-card);background:#fff;
  padding:26px 24px;box-shadow:var(--sh-1);position:relative;
  transition:box-shadow .25s ease,transform .25s ease;
}
.compare-card:hover{box-shadow:var(--sh-2);transform:translateY(-3px)}
.compare-card.featured{border-color:var(--c-primary);background:linear-gradient(180deg,#F7FAFF,#fff)}
.compare-card .badge-top{
  position:absolute;top:-12px;left:24px;background:var(--c-primary);color:#fff;
  font-size:12px;font-weight:600;padding:4px 12px;border-radius:999px;
}
.compare-card h3{font-size:18px;margin-bottom:6px}
.compare-card .sub{font-size:13.5px;color:var(--c-muted);margin-bottom:18px}
.compare-list{list-style:none;padding:0;margin:0 0 20px}
.compare-list li{display:flex;gap:9px;font-size:14.5px;padding:7px 0;color:var(--c-text)}
.compare-list i{color:var(--c-accent);font-size:12px;margin-top:6px}
.compare-foot{font-size:13.5px;color:var(--c-muted);border-top:1px solid var(--c-line);padding-top:14px}
@media(max-width:992px){.compare-row{grid-template-columns:1fr}}

/* FAQ */
.faq-list{display:grid;gap:14px;max-width:900px}
.faq-item{background:#fff;border:1px solid var(--c-line);border-radius:var(--r-card);overflow:hidden;transition:border-color .2s ease,box-shadow .2s ease}
.faq-item.open{border-color:rgba(22,82,217,.35);box-shadow:var(--sh-1)}
.faq-q{
  width:100%;display:flex;align-items:center;gap:14px;text-align:left;
  background:transparent;border:0;padding:20px 22px;font-size:16px;font-weight:600;color:var(--c-title);
}
.faq-q:hover{color:var(--c-primary)}
.faq-q .dot{
  flex:0 0 26px;width:26px;height:26px;border-radius:50%;
  background:var(--c-primary-soft);color:var(--c-primary);font-size:12.5px;font-weight:700;
  display:flex;align-items:center;justify-content:center;
}
.faq-q .arrow{margin-left:auto;color:var(--c-muted);font-size:13px;transition:transform .25s ease}
.faq-item.open .arrow{transform:rotate(180deg);color:var(--c-primary)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .3s ease}
.faq-a .inner{padding:0 22px 22px 62px;font-size:15px;color:var(--c-text);border-left:3px solid var(--c-primary);margin-left:22px;padding-left:22px}
@media(max-width:600px){
  .faq-a .inner{margin-left:14px;padding-left:16px}
  .faq-q{padding:16px;font-size:15px}
}

/* CTA 条 */
.cta-band{
  background:#fff;border:1px solid rgba(22,82,217,.28);border-radius:var(--r-card);
  padding:32px 34px;display:flex;align-items:center;gap:28px;flex-wrap:wrap;
  box-shadow:var(--sh-1);
}
.cta-band .cta-text{flex:1;min-width:260px}
.cta-band h3{font-size:21px;margin-bottom:8px}
.cta-band p{font-size:15px;color:var(--c-text);margin:0}
.cta-actions{display:flex;gap:12px;flex-wrap:wrap}
@media(max-width:600px){.cta-band{padding:24px 20px}}

/* Footer */
.site-footer{background:var(--c-footer);color:#C7D2E4;padding:56px 0 0;font-size:14.5px}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.3fr;gap:36px}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:14px;color:#fff;font-weight:600;font-size:16.5px}
.footer-brand .brand-mark{background:linear-gradient(150deg,#2E6BF0,#0E3AA8)}
.site-footer p{color:#A9BBD8;font-size:14px;line-height:1.75}
.site-footer h4{color:#fff;font-size:15px;margin-bottom:16px;font-weight:600}
.footer-links,.footer-contact{list-style:none;padding:0;margin:0}
.footer-links li{margin-bottom:10px}
.footer-links a{color:#C7D2E4;border-bottom:2px solid transparent;padding-bottom:1px}
.footer-links a:hover{color:#fff;border-bottom-color:#fff}
.footer-contact li{display:flex;gap:10px;margin-bottom:12px;color:#C7D2E4;line-height:1.6}
.footer-contact i{color:#6F8FC4;margin-top:5px;font-size:13px}
.footer-bottom{
  margin-top:44px;border-top:1px solid rgba(255,255,255,.12);
  padding:20px 0 26px;display:flex;justify-content:space-between;gap:14px;flex-wrap:wrap;
  font-size:13px;color:#8FA4C6;
}
@media(max-width:992px){
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px}
}
@media(max-width:600px){
  .footer-grid{grid-template-columns:1fr}
}

/* roulang page: category2 */
:root{
  --c-primary:#1652D9;
  --c-primary-d:#0E3AA8;
  --c-primary-l:#E8F0FE;
  --c-accent:#12B886;
  --c-accent-d:#0B8F69;
  --c-accent-l:#E6F7F1;
  --c-title:#0F172A;
  --c-text:#475569;
  --c-muted:#94A3B8;
  --c-line:#E4E9F2;
  --c-bg:#F5F8FC;
  --c-card:#FFFFFF;
  --c-footer:#0A1B3D;
  --c-warn:#F59E0B;
  --r-card:14px;
  --r-img:16px;
  --r-btn:10px;
  --sh-1:0 1px 2px rgba(15,23,42,.04), 0 8px 24px -12px rgba(15,23,42,.12);
  --sh-2:0 16px 36px -16px rgba(15,23,42,.20);
  --font:-apple-system,BlinkMacSystemFont,"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:1.75;
  color:var(--c-text);background:var(--c-bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;}
a{color:var(--c-primary);text-decoration:none;transition:color .2s ease,border-color .2s ease;}
a:hover{color:var(--c-primary-d);}
h1,h2,h3,h4,h5{color:var(--c-title);margin:0;font-weight:600;line-height:1.35;}
p{margin:0 0 1em;}
p:last-child{margin-bottom:0;}
ul,ol{margin:0;padding:0;list-style:none;}
button,input{font-family:inherit;}
:focus-visible{outline:3px solid rgba(22,82,217,.22);outline-offset:2px;border-radius:6px;}

.container{max-width:1200px;padding-left:24px;padding-right:24px;margin:0 auto;width:100%;}
@media (max-width:576px){.container{padding-left:16px;padding-right:16px;}}

/* ============ 实时状态条 ============ */
.status-bar{
  background:linear-gradient(90deg,#0A1B3D 0%,#123067 60%,#0E3AA8 100%);
  color:#C7D2E4;font-size:13.5px;line-height:1.5;
}
.status-inner{display:flex;align-items:center;gap:22px;flex-wrap:wrap;padding:9px 0;}
.status-item{display:inline-flex;align-items:center;gap:8px;white-space:nowrap;}
.status-dot{
  width:8px;height:8px;border-radius:50%;background:var(--c-accent);
  box-shadow:0 0 0 0 rgba(18,184,134,.6);animation:pulse 2.4s infinite;
}
@keyframes pulse{
  0%{box-shadow:0 0 0 0 rgba(18,184,134,.55);}
  70%{box-shadow:0 0 0 9px rgba(18,184,134,0);}
  100%{box-shadow:0 0 0 0 rgba(18,184,134,0);}
}
.status-item i{color:#8FB3F5;font-size:12.5px;}
.status-right{margin-left:auto;}
@media (max-width:767.98px){
  .status-right{margin-left:0;}
  .status-inner{gap:12px;font-size:12.5px;}
}

/* ============ 导航 ============ */
.site-header{
  position:sticky;top:0;z-index:1030;background:#fff;
  border-bottom:1px solid var(--c-line);transition:box-shadow .25s ease;
}
.site-header.is-scrolled{box-shadow:var(--sh-1);}
.header-inner{display:flex;align-items:center;gap:26px;height:68px;}
.brand{display:inline-flex;align-items:center;gap:10px;flex-shrink:0;}
.brand-mark{
  width:36px;height:36px;border-radius:11px;display:inline-flex;
  align-items:center;justify-content:center;flex-shrink:0;
  background:linear-gradient(135deg,var(--c-primary) 0%,var(--c-primary-d) 100%);
  color:#fff;font-size:16px;box-shadow:0 6px 14px -8px rgba(22,82,217,.75);
}
.brand-text{font-size:17px;font-weight:600;color:var(--c-title);letter-spacing:.2px;}
.main-nav{display:flex;align-items:center;gap:6px;}
.main-nav .nav-link{
  position:relative;display:inline-flex;align-items:center;height:68px;
  padding:0 14px;font-size:15px;font-weight:500;color:#4A5A72;
  transition:color .2s ease;
}
.main-nav .nav-link::after{
  content:"";position:absolute;left:50%;bottom:14px;transform:translateX(-50%);
  width:0;height:2px;border-radius:2px;background:var(--c-primary);
  transition:width .25s ease;
}
.main-nav .nav-link:hover{color:var(--c-primary);}
.main-nav .nav-link:hover::after{width:60%;}
.main-nav .nav-link.active{color:var(--c-primary);}
.main-nav .nav-link.active::after{width:60%;}
.header-actions{display:flex;align-items:center;gap:12px;margin-left:auto;}
.nav-search{
  position:relative;display:flex;align-items:center;
  width:216px;height:40px;border:1px solid var(--c-line);border-radius:999px;
  background:#F8FAFE;padding:0 14px;transition:border-color .2s ease,box-shadow .2s ease,background .2s ease;
}
.nav-search i{color:var(--c-muted);font-size:13px;margin-right:8px;}
.nav-search input{
  border:0;background:transparent;outline:none;width:100%;
  font-size:14px;color:var(--c-title);
}
.nav-search input::placeholder{color:var(--c-muted);}
.nav-search:focus-within{
  border-color:var(--c-primary);background:#fff;
  box-shadow:0 0 0 3px rgba(22,82,217,.14);
}
.btn-primary-pill{
  display:inline-flex;align-items:center;gap:8px;height:40px;padding:0 20px;
  border-radius:999px;background:var(--c-accent);color:#fff;font-size:14.5px;
  font-weight:500;border:1px solid var(--c-accent);white-space:nowrap;
  transition:background .2s ease,transform .2s ease,box-shadow .2s ease;
}
.btn-primary-pill:hover{
  background:var(--c-accent-d);border-color:var(--c-accent-d);color:#fff;
  transform:translateY(-1px);box-shadow:0 12px 22px -12px rgba(11,143,105,.85);
}
.nav-toggle{
  margin-left:auto;width:44px;height:44px;border-radius:12px;
  border:1px solid var(--c-line);background:#fff;color:var(--c-primary);
  font-size:17px;display:none;align-items:center;justify-content:center;
}
@media (max-width:991.98px){
  .nav-toggle{display:inline-flex;}
  .header-inner{gap:14px;height:64px;}
}
.mobile-nav{
  width:308px;border:0;border-right:1px solid var(--c-line);
}
.mobile-nav .offcanvas-header{border-bottom:1px solid var(--c-line);padding:18px 20px;}
.mobile-nav .offcanvas-body{padding:14px 16px 26px;}
.mobile-nav .m-nav-link{
  display:flex;align-items:center;justify-content:space-between;
  height:48px;padding:0 12px;border-radius:10px;font-size:15.5px;
  font-weight:500;color:#3E4E66;border-bottom:1px solid #EFF3FA;
}
.mobile-nav .m-nav-link:last-of-type{border-bottom:0;}
.mobile-nav .m-nav-link.active{background:var(--c-primary-l);color:var(--c-primary);}
.mobile-nav .m-nav-link i{color:var(--c-muted);font-size:12px;}
.mobile-nav .nav-search{width:100%;margin:14px 0 12px;}
.mobile-nav .btn-primary-pill{width:100%;justify-content:center;height:46px;border-radius:12px;}

/* ============ 按钮 ============ */
.btn-solid{
  display:inline-flex;align-items:center;justify-content:center;gap:9px;
  height:50px;padding:0 26px;border-radius:var(--r-btn);
  background:var(--c-accent);color:#fff;font-size:15.5px;font-weight:500;
  border:1px solid var(--c-accent);cursor:pointer;
  transition:background .2s ease,transform .2s ease,box-shadow .2s ease;
}
.btn-solid:hover{background:var(--c-accent-d);border-color:var(--c-accent-d);color:#fff;transform:translateY(-2px);box-shadow:0 16px 30px -16px rgba(11,143,105,.9);}
.btn-solid:active{transform:translateY(0);}
.btn-outline{
  display:inline-flex;align-items:center;justify-content:center;gap:9px;
  height:50px;padding:0 24px;border-radius:var(--r-btn);
  background:#fff;color:var(--c-primary);font-size:15.5px;font-weight:500;
  border:1px solid var(--c-primary);cursor:pointer;
  transition:background .2s ease,transform .2s ease,box-shadow .2s ease;
}
.btn-outline:hover{background:var(--c-primary-l);color:var(--c-primary-d);transform:translateY(-2px);border-color:var(--c-primary-d);}
.btn-ghost{
  display:inline-flex;align-items:center;gap:7px;font-size:15px;font-weight:500;
  color:var(--c-primary);border-bottom:1px solid transparent;padding:2px 0;
}
.btn-ghost:hover{border-bottom-color:var(--c-primary);color:var(--c-primary-d);}

/* ============ Hero ============ */
.page-hero{
  position:relative;overflow:hidden;
  background:
    radial-gradient(circle at 88% 12%,rgba(22,82,217,.07) 0,transparent 46%),
    linear-gradient(180deg,#FFFFFF 0%,#F2F7FF 100%);
  border-bottom:1px solid var(--c-line);
}
.page-hero::before{
  content:"";position:absolute;inset:0;
  background-image:radial-gradient(rgba(15,23,42,.055) 1px,transparent 1px);
  background-size:22px 22px;opacity:.9;pointer-events:none;
}
.page-hero > .container{position:relative;z-index:1;}
.hero-pad{padding:44px 0 62px;}
.breadcrumb-nav{
  display:flex;align-items:center;gap:9px;flex-wrap:wrap;
  font-size:13.5px;color:var(--c-muted);margin-bottom:22px;
}
.breadcrumb-nav a{color:#64748B;}
.breadcrumb-nav a:hover{color:var(--c-primary);}
.breadcrumb-nav .sep{color:#C3CEE0;}
.breadcrumb-nav .current{color:var(--c-title);font-weight:500;}
.hero-grid{display:grid;grid-template-columns:1.35fr .95fr;gap:52px;align-items:center;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;height:30px;padding:0 13px;
  border-radius:999px;background:var(--c-primary-l);color:var(--c-primary-d);
  font-size:13px;font-weight:500;margin-bottom:18px;
}
.eyebrow i{font-size:11.5px;}
.page-hero h1{
  font-size:clamp(1.75rem,3.2vw,2.6rem);font-weight:600;
  letter-spacing:-.4px;margin-bottom:16px;
}
.hero-lead{
  font-size:16.5px;line-height:1.8;color:#51607A;max-width:620px;margin-bottom:26px;
}
.hero-lead strong{color:var(--c-primary-d);font-weight:600;}
.hero-tags{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:28px;}
.tag-chip{
  display:inline-flex;align-items:center;gap:7px;height:32px;padding:0 14px;
  border-radius:999px;background:#fff;border:1px solid var(--c-line);
  font-size:13.5px;color:#5A6A82;
}
.tag-chip i{color:var(--c-accent);font-size:11.5px;}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;align-items:center;}
.hero-visual{position:relative;}
.hero-figure{
  border-radius:var(--r-img);overflow:hidden;background:#fff;
  border:1px solid var(--c-line);box-shadow:var(--sh-1);
}
.hero-figure img{width:100%;aspect-ratio:4/3;object-fit:cover;}
.float-card{
  position:absolute;left:-18px;bottom:-22px;background:#fff;
  border:1px solid var(--c-line);border-radius:var(--r-card);
  padding:14px 18px;box-shadow:var(--sh-2);min-width:216px;
}
.float-card .fc-label{font-size:12.5px;color:var(--c-muted);display:block;margin-bottom:6px;}
.float-card .fc-value{font-size:20px;font-weight:700;color:var(--c-title);font-variant-numeric:tabular-nums;line-height:1.2;}
.float-card .fc-sub{font-size:12.5px;color:var(--c-accent-d);display:inline-flex;align-items:center;gap:6px;margin-top:7px;}
@media (max-width:991.98px){
  .hero-grid{grid-template-columns:1fr;gap:34px;}
  .hero-pad{padding:32px 0 52px;}
  .float-card{left:12px;bottom:-18px;}
}
@media (max-width:575.98px){
  .float-card{position:static;margin-top:14px;left:auto;bottom:auto;}
  .hero-pad{padding:26px 0 42px;}
  .hero-actions .btn-solid,.hero-actions .btn-outline{width:100%;}
}

/* ============ 通用板块 ============ */
.section{padding:78px 0;}
.section-alt{background:#fff;border-top:1px solid var(--c-line);border-bottom:1px solid var(--c-line);}
.section-head{max-width:760px;margin-bottom:42px;}
.section-head .eyebrow{margin-bottom:14px;}
.section-head h2{font-size:clamp(1.375rem,2.2vw,1.85rem);margin-bottom:14px;}
.section-head p{font-size:15.5px;color:#5A6A82;}
@media (max-width:767.98px){.section{padding:52px 0;}.section-head{margin-bottom:30px;}}

/* ============ 导语 + 双栏特性 ============ */
.intro-grid{display:grid;grid-template-columns:1.1fr .9fr;gap:48px;align-items:start;}
.prose-card{
  background:#fff;border:1px solid var(--c-line);border-radius:var(--r-card);
  padding:32px 34px;box-shadow:var(--sh-1);
}
.prose-card h3{font-size:19px;margin-bottom:14px;}
.prose-card p{font-size:15.5px;line-height:1.85;color:#4E5D75;}
.prose-card p + p{margin-top:14px;}
.intro-side{position:sticky;top:92px;}
.side-figure{
  border-radius:var(--r-img);overflow:hidden;border:1px solid var(--c-line);
  background:#fff;box-shadow:var(--sh-1);margin-bottom:20px;
}
.side-figure img{width:100%;aspect-ratio:16/10;object-fit:cover;}
.side-note{
  background:var(--c-primary-l);border:1px solid #D3E1FB;border-radius:var(--r-card);
  padding:20px 22px;
}
.side-note h4{font-size:15.5px;margin-bottom:10px;color:var(--c-primary-d);display:flex;align-items:center;gap:9px;}
.side-note h4 i{font-size:14px;}
.side-note li{
  position:relative;padding-left:18px;font-size:14.5px;line-height:1.7;
  color:#3E5170;margin-bottom:8px;
}
.side-note li:last-child{margin-bottom:0;}
.side-note li::before{
  content:"";position:absolute;left:0;top:9px;width:7px;height:7px;
  border-radius:50%;background:var(--c-primary);
}
@media (max-width:991.98px){
  .intro-grid{grid-template-columns:1fr;gap:28px;}
  .intro-side{position:static;}
}

.feature-list{
  display:grid;grid-template-columns:repeat(2,1fr);gap:18px 26px;margin-top:32px;
}
.feature-item{
  display:flex;gap:14px;background:#fff;border:1px solid var(--c-line);
  border-radius:var(--r-card);padding:18px 20px;transition:box-shadow .25s ease,transform .25s ease,border-color .25s ease;
}
.feature-item:hover{box-shadow:var(--sh-2);transform:translateY(-2px);border-color:#D7E2F5;}
.feature-icon{
  width:40px;height:40px;border-radius:11px;flex-shrink:0;
  display:flex;align-items:center;justify-content:center;
  background:var(--c-primary-l);color:var(--c-primary);font-size:16px;
}
.feature-item h4{font-size:15.5px;margin-bottom:5px;}
.feature-item p{font-size:14.2px;line-height:1.7;color:#5A6A82;margin:0;}
@media (max-width:767.98px){.feature-list{grid-template-columns:1fr;}}

/* ============ 2×2 非对称图文卡（上标下格） ============ */
.masonry{columns:2;column-gap:24px;}
.m-card{
  break-inside:avoid;display:block;width:100%;margin-bottom:24px;
  background:#fff;border:1px solid var(--c-line);border-radius:var(--r-card);
  overflow:hidden;box-shadow:var(--sh-1);
  transition:box-shadow .25s ease,transform .25s ease;
}
.m-card:hover{box-shadow:var(--sh-2);transform:translateY(-3px);}
.m-media{position:relative;overflow:hidden;}
.m-media img{width:100%;object-fit:cover;transition:transform .5s ease;}
.m-card:hover .m-media img{transform:scale(1.04);}
.m-card.tall .m-media img{aspect-ratio:16/11;}
.m-card.short .m-media img{aspect-ratio:16/9;}
.badge-soft{
  position:absolute;left:14px;bottom:14px;
  display:inline-flex;align-items:center;gap:6px;
  background:rgba(232,240,254,.95);color:var(--c-primary-d);
  font-size:12.5px;font-weight:500;padding:5px 11px;border-radius:999px;
  backdrop-filter:blur(2px);
}
.m-body{padding:22px 24px 24px;}
.m-body h3{font-size:17.5px;margin-bottom:10px;}
.m-body p{font-size:14.6px;line-height:1.75;color:#5A6A82;margin-bottom:14px;}
.m-meta{
  display:flex;align-items:center;gap:16px;font-size:13px;color:var(--c-muted);
  border-top:1px dashed var(--c-line);padding-top:13px;
}
.m-meta span{display:inline-flex;align-items:center;gap:7px;}
.m-meta i{color:#B7C4D8;font-size:12px;}
@media (max-width:767.98px){.masonry{columns:1;}}

/* ============ 编号流程条 ============ */
.steps{
  display:grid;grid-template-columns:repeat(4,1fr);gap:0;
  background:#fff;border:1px solid var(--c-line);border-radius:var(--r-card);
  overflow:hidden;box-shadow:var(--sh-1);
}
.step-item{
  position:relative;padding:30px 26px 32px;
  border-right:1px solid var(--c-line);
}
.step-item:last-child{border-right:0;}
.step-item::after{
  content:"";position:absolute;right:-1px;top:44px;width:9px;height:9px;
  border-radius:50%;background:#fff;border:2px solid var(--c-primary);
  transform:translateX(50%);z-index:2;
}
.step-item:last-child::after{display:none;}
.step-num{
  width:38px;height:38px;border-radius:11px;display:flex;align-items:center;justify-content:center;
  background:var(--c-primary);color:#fff;font-size:15px;font-weight:700;
  font-variant-numeric:tabular-nums;margin-bottom:16px;
}
.step-item h3{font-size:16px;margin-bottom:9px;}
.step-item p{font-size:14.2px;line-height:1.72;color:#5A6A82;margin:0;}
@media (max-width:991.98px){
  .steps{grid-template-columns:repeat(2,1fr);}
  .step-item:nth-child(2){border-right:0;}
  .step-item:nth-child(2)::after{display:none;}
  .step-item:nth-child(1),.step-item:nth-child(2){border-bottom:1px solid var(--c-line);}
}
@media (max-width:575.98px){
  .steps{grid-template-columns:1fr;}
  .step-item{border-right:0;border-bottom:1px solid var(--c-line);padding:24px 20px;}
  .step-item::after{display:none;}
  .step-item:last-child{border-bottom:0;}
}

/* ============ 横向对比卡 ============ */
.compare-wrap{
  background:#fff;border:1px solid var(--c-line);border-radius:var(--r-card);
  overflow:hidden;box-shadow:var(--sh-1);
}
.compare-head{
  display:grid;grid-template-columns:1.15fr 1.2fr .8fr 1.35fr;
  gap:16px;padding:16px 26px;background:#F8FAFE;
  border-bottom:1px solid var(--c-line);
  font-size:13px;font-weight:600;color:#5A6A82;letter-spacing:.3px;
}
.compare-row{
  display:grid;grid-template-columns:1.15fr 1.2fr .8fr 1.35fr;
  gap:16px;padding:22px 26px;border-bottom:1px solid var(--c-line);
  align-items:start;transition:background .2s ease;
}
.compare-row:last-child{border-bottom:0;}
.compare-row:hover{background:#FBFDFF;}
.compare-name{display:flex;align-items:center;gap:11px;font-size:15.5px;font-weight:600;color:var(--c-title);}
.compare-name i{
  width:32px;height:32px;border-radius:9px;background:var(--c-accent-l);
  color:var(--c-accent-d);display:flex;align-items:center;justify-content:center;font-size:13px;
}
.compare-cell{font-size:14.4px;line-height:1.7;color:#54647C;}
.compare-time{font-variant-numeric:tabular-nums;font-weight:600;color:var(--c-primary-d);}
@media (max-width:991.98px){
  .compare-head{display:none;}
  .compare-row{grid-template-columns:1fr;gap:9px;padding:20px 22px;}
  .compare-cell{position:relative;padding-left:14px;}
  .compare-cell::before{
    content:"";position:absolute;left:0;top:9px;width:5px;height:5px;
    border-radius:50%;background:#C7D4E8;
  }
}

/* ============ FAQ ============ */
.faq-accordion .accordion-item{
  border:1px solid var(--c-line);border-radius:var(--r-card);
  background:#fff;margin-bottom:14px;overflow:hidden;
  transition:box-shadow .25s ease,border-color .25s ease;
}
.faq-accordion .accordion-item:last-child{margin-bottom:0;}
.faq-accordion .accordion-item:has(.accordion-button:not(.collapsed)){
  border-color:#C9DCFB;box-shadow:var(--sh-1);
}
.faq-accordion .accordion-button{
  display:flex;align-items:center;gap:15px;width:100%;
  padding:20px 24px;background:#fff;border:0;box-shadow:none !important;
  font-size:16px;font-weight:600;color:var(--c-title);text-align:left;
  transition:background .2s ease,color .2s ease;
}
.faq-accordion .accordion-button:not(.collapsed){color:var(--c-primary-d);}
.faq-accordion .accordion-button:hover{background:#F8FAFE;}
.faq-index{
  width:30px;height:30px;flex-shrink:0;border-radius:50%;
  display:flex;align-items:center;justify-content:center;
  background:var(--c-primary-l);color:var(--c-primary-d);
  font-size:12.5px;font-weight:700;font-variant-numeric:tabular-nums;
}
.faq-accordion .accordion-button:not(.collapsed) .faq-index{background:var(--c-primary);color:#fff;}
.faq-accordion .accordion-button::after{
  content:"\f107";font-family:"Font Awesome 6 Free";font-weight:900;
  background-image:none;display:flex;align-items:center;justify-content:center;
  width:auto;height:auto;font-size:14px;color:var(--c-muted);
  margin-left:auto;transition:transform .25s ease,color .25s ease;
}
.faq-accordion .accordion-button:not(.collapsed)::after{transform:rotate(180deg);color:var(--c-primary);}
.faq-accordion .accordion-body{
  padding:0 24px 22px 69px;font-size:14.8px;line-height:1.85;color:#54647C;
  border-left:3px solid transparent;
}
.faq-accordion .accordion-item:has(.accordion-button:not(.collapsed)) .accordion-body{
  border-left-color:var(--c-primary);
}
@media (max-width:575.98px){
  .faq-accordion .accordion-button{padding:17px 18px;font-size:15.2px;gap:12px;}
  .faq-accordion .accordion-body{padding:0 18px 20px 18px;}
}

/* ============ CTA ============ */
.cta-band{
  background:linear-gradient(135deg,#FFFFFF 0%,#F1F6FF 100%);
  border:1px solid #C9DCFB;border-radius:var(--r-img);
  padding:34px 38px;box-shadow:var(--sh-1);
  display:flex;align-items:center;gap:34px;flex-wrap:wrap;
}
.cta-band .cta-copy{flex:1 1 420px;}
.cta-band h2{font-size:clamp(1.25rem,2vw,1.6rem);margin-bottom:10px;}
.cta-band p{font-size:15px;color:#54647C;margin:0;}
.cta-actions{display:flex;gap:12px;flex-wrap:wrap;}
@media (max-width:767.98px){
  .cta-band{padding:26px 22px;gap:22px;}
  .cta-actions{width:100%;}
  .cta-actions .btn-solid,.cta-actions .btn-outline{width:100%;}
}

/* ============ 页脚 ============ */
.site-footer{background:var(--c-footer);color:#C7D2E4;padding:62px 0 0;margin-top:0;}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.4fr;gap:38px;}
.footer-brand{display:flex;align-items:center;gap:11px;font-size:17px;font-weight:600;color:#fff;margin-bottom:16px;}
.footer-brand .brand-mark{box-shadow:none;}
.site-footer p{font-size:14.2px;line-height:1.8;color:#9FB0CB;}
.site-footer h4{font-size:15px;color:#fff;margin-bottom:16px;font-weight:600;}
.footer-links li{margin-bottom:10px;}
.footer-links a{color:#C7D2E4;font-size:14.2px;border-bottom:2px solid transparent;padding-bottom:2px;transition:color .2s ease,border-color .2s ease;}
.footer-links a:hover{color:#fff;border-bottom-color:rgba(255,255,255,.7);}
.footer-contact li{display:flex;gap:10px;font-size:14.2px;line-height:1.7;color:#9FB0CB;margin-bottom:11px;}
.footer-contact i{color:#6F8CC4;margin-top:5px;font-size:13px;}
.footer-bottom{
  margin-top:46px;border-top:1px solid rgba(255,255,255,.12);
  padding:20px 0 26px;display:flex;justify-content:space-between;gap:14px;flex-wrap:wrap;
  font-size:13.2px;color:#8EA1C0;
}
.footer-bottom a{color:#B9C7DE;}
.footer-bottom a:hover{color:#fff;}
@media (max-width:991.98px){.footer-grid{grid-template-columns:1fr 1fr;gap:30px;}}
@media (max-width:575.98px){.footer-grid{grid-template-columns:1fr;}.site-footer{padding-top:44px;}}