/* roulang page: index */
:root{
  --brand:#1B5FD9;
  --brand-dark:#123C8C;
  --brand-hover:#1752BC;
  --brand-press:#134396;
  --brand-light:#E8F0FE;
  --accent:#FF8A3D;
  --ink:#101828;
  --body-c:#344054;
  --muted:#667085;
  --faint:#98A2B3;
  --line:#E4E9F2;
  --bg:#FFFFFF;
  --bg-soft:#F5F7FB;
  --dark:#0F172A;
  --r-card:14px;
  --r-img:12px;
  --r-hero:20px;
  --r-btn:10px;
  --sh-1:0 1px 2px rgba(16,24,40,.05);
  --sh-card:0 8px 24px rgba(16,24,40,.07);
  --sh-hover:0 12px 32px rgba(16,24,40,.10);
  --font-cn:-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei","Noto Sans SC","Helvetica Neue",Arial,sans-serif;
  --bs-primary:#1B5FD9;
  --bs-primary-rgb:27,95,217;
  --bs-body-font-family:var(--font-cn);
  --bs-body-color:#344054;
  --bs-body-bg:#ffffff;
  --bs-border-color:#E4E9F2;
  --bs-link-color:#1B5FD9;
  --bs-link-hover-color:#123C8C;
  --bs-border-radius:10px;
  --bs-border-radius-lg:14px;
  --bs-border-radius-sm:8px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{margin:0;font-family:var(--font-cn);font-size:16px;line-height:1.75;color:var(--body-c);background:var(--bg);-webkit-font-smoothing:antialiased;overflow-x:hidden}
img{max-width:100%;display:block;height:auto}
a{color:var(--brand);text-decoration:none;transition:color .18s ease}
h1,h2,h3,h4{margin:0;color:var(--ink);line-height:1.3;font-weight:700}
p{margin:0}
ul{margin:0;padding:0;list-style:none}
button{font-family:inherit}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px}
.shell{width:100%;max-width:1200px;margin:0 auto;padding:0 24px}
@media (min-width:1400px){.shell{max-width:1280px}}
@media (max-width:767.98px){.shell{padding:0 16px}}

/* ============ 按钮 ============ */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;height:44px;padding:0 22px;border-radius:var(--r-btn);font-size:15px;font-weight:600;line-height:1;border:1px solid transparent;cursor:pointer;transition:background-color .18s ease,color .18s ease,border-color .18s ease,transform .18s ease,box-shadow .18s ease;text-align:center}
.btn-brand{background:var(--brand);color:#fff}
.btn-brand:hover{background:var(--brand-hover);color:#fff;transform:translateY(-1px)}
.btn-brand:active{background:var(--brand-press);transform:translateY(0)}
.btn-outline-brand{background:transparent;color:var(--brand);border-color:var(--brand)}
.btn-outline-brand:hover{background:var(--brand-light);color:var(--brand-dark);transform:translateY(-1px)}
.btn-outline-brand:active{transform:translateY(0)}
.btn-light-solid{background:#fff;color:var(--brand-dark)}
.btn-light-solid:hover{background:#EAF1FF;color:var(--brand-dark);transform:translateY(-1px)}
.btn-light-solid:active{transform:translateY(0)}
.btn:focus-visible{outline:2px solid var(--brand);outline-offset:2px;box-shadow:none}
.cta-band .btn:focus-visible{outline-color:#7FA9EF}
.link-more{display:inline-flex;align-items:center;gap:6px;font-size:15px;font-weight:600;color:var(--brand);white-space:nowrap}
.link-more svg{transition:transform .18s ease}
.link-more:hover{color:var(--brand-dark)}
.link-more:hover svg{transform:translateX(3px)}

/* ============ 头部导航 ============ */
.site-header{position:sticky;top:0;z-index:1030;background:#fff;border-bottom:1px solid var(--line);box-shadow:var(--sh-1);transition:box-shadow .24s ease}
.site-header.is-scrolled{box-shadow:0 4px 18px rgba(16,24,40,.08)}
.nav-inner{display:flex;align-items:center;gap:18px;height:68px}
.brand{display:inline-flex;align-items:center;gap:10px;flex:0 0 auto}
.brand-icon{display:inline-flex;width:32px;height:32px;align-items:center;justify-content:center;border-radius:9px;background:var(--brand-light);color:var(--brand);flex:0 0 auto}
.brand-icon svg{width:19px;height:19px}
.brand-text{font-size:19px;font-weight:700;color:var(--brand-dark);letter-spacing:.2px;white-space:nowrap}
.nav-links{display:none;align-items:center;gap:4px;margin-left:10px}
@media (min-width:992px){.nav-links{display:flex}}
.nav-link-x{position:relative;padding:8px 12px;font-size:15px;color:var(--body-c);border-radius:8px;transition:color .18s ease}
.nav-link-x::after{content:"";position:absolute;left:12px;right:12px;bottom:2px;height:2px;background:var(--brand);border-radius:2px;transform:scaleX(0);transform-origin:left center;transition:transform .18s ease}
.nav-link-x:hover{color:var(--brand)}
.nav-link-x:hover::after{transform:scaleX(1)}
.nav-link-x.active{color:var(--brand);font-weight:600}
.nav-link-x.active::after{transform:scaleX(1)}
.nav-actions{display:flex;align-items:center;gap:12px;margin-left:auto}
.search-box{display:none;position:relative;align-items:center}
@media (min-width:992px){.search-box{display:flex}}
.search-box input{width:220px;height:40px;border-radius:999px;border:1px solid var(--line);background:#F8FAFC;padding:0 38px 0 16px;font-size:14px;color:var(--ink);outline:none;transition:border-color .18s ease,background-color .18s ease}
.search-box input::placeholder{color:var(--faint)}
.search-box input:focus{background:#fff;border-color:var(--brand);outline:2px solid rgba(27,95,217,.35);outline-offset:-2px}
.search-box .search-icon{position:absolute;right:14px;width:16px;height:16px;color:var(--faint);pointer-events:none}
.nav-cta{height:40px;padding:0 18px;font-size:14px}
.nav-toggle{display:inline-flex;flex-direction:column;justify-content:center;gap:4px;width:40px;height:40px;border:1px solid var(--line);border-radius:10px;background:#fff;padding:0 10px;cursor:pointer}
.nav-toggle span{display:block;height:2px;border-radius:2px;background:var(--ink)}
@media (min-width:992px){.nav-toggle{display:none!important}}
.mobile-nav{width:300px}
.mobile-nav .offcanvas-header{border-bottom:1px solid var(--line);padding:16px 20px}
.mobile-nav .offcanvas-body{padding:8px 20px 24px}
.mobile-nav .m-link{display:block;padding:14px 2px;border-bottom:1px solid var(--line);font-size:15px;font-weight:500;color:var(--body-c)}
.mobile-nav .m-link:last-of-type{border-bottom:0}
.mobile-nav .m-link:hover{color:var(--brand)}
.mobile-nav .m-link.active{color:var(--brand);font-weight:600}

/* ============ 通用区块 ============ */
.section{padding:72px 0}
.section--soft{background:var(--bg-soft)}
@media (max-width:767.98px){.section{padding:48px 0}}
.sec-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;flex-wrap:wrap;margin-bottom:32px}
.sec-head h2{font-size:clamp(24px,2.4vw,30px);letter-spacing:-.3px}
.sec-head .sec-desc{margin-top:10px;font-size:15px;color:var(--muted);max-width:640px}
.sec-head--center{flex-direction:column;align-items:flex-start}

/* ============ 首屏 ============ */
.hero{background:#fff;padding:52px 0 68px}
@media (max-width:767.98px){.hero{padding:32px 0 48px}}
.hero-grid{display:grid;grid-template-columns:1fr;gap:40px;align-items:center}
@media (min-width:992px){.hero-grid{grid-template-columns:1.02fr 1fr;gap:56px}}
.eyebrow{display:inline-flex;align-items:center;gap:8px;padding:6px 14px;border-radius:999px;background:var(--brand-light);color:var(--brand);font-size:13px;font-weight:600;margin-bottom:18px}
.hero h1{font-size:clamp(28px,3.4vw,44px);line-height:1.25;font-weight:700;letter-spacing:-.6px;color:var(--ink)}
.hero-sub{margin-top:18px;font-size:17px;line-height:1.8;color:#475467;max-width:560px}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:28px}
@media (max-width:767.98px){
  .hero-actions{flex-direction:column;align-items:stretch}
  .hero-actions .btn{width:100%;max-width:320px;height:46px}
}
.hero-points{display:flex;flex-wrap:wrap;gap:10px 24px;margin-top:26px}
.hero-points li{position:relative;padding-left:18px;font-size:14px;color:var(--muted)}
.hero-points li::before{content:"";position:absolute;left:0;top:10px;width:7px;height:7px;border-radius:50%;background:var(--brand);opacity:.9}
.hero-visual{position:relative;margin:0}
.hero-visual img{width:100%;aspect-ratio:4/3;object-fit:cover;border-radius:var(--r-hero);box-shadow:var(--sh-card);background:var(--bg-soft)}
.float-badge{position:absolute;display:inline-flex;align-items:center;gap:6px;padding:8px 16px;border-radius:999px;background:#fff;border:1px solid var(--line);box-shadow:var(--sh-card);font-size:13px;font-weight:600;color:var(--brand-dark);white-space:nowrap;font-variant-numeric:tabular-nums}
.fb-1{left:-18px;bottom:36px}
.fb-2{right:20px;top:-14px}
@media (max-width:767.98px){.float-badge{display:none}}

/* ============ 功能卡片网格 ============ */
.card-grid{display:grid;grid-template-columns:1fr;gap:24px}
@media (min-width:768px){.card-grid{grid-template-columns:repeat(2,1fr)}}
@media (min-width:1200px){.card-grid{grid-template-columns:repeat(3,1fr)}}
.p-card{display:flex;flex-direction:column;background:#fff;border:1px solid var(--line);border-radius:var(--r-card);overflow:hidden;box-shadow:var(--sh-1);transition:transform .2s ease,box-shadow .2s ease}
.p-card:hover{transform:translateY(-2px);box-shadow:var(--sh-hover)}
.p-card__media{aspect-ratio:16/10;overflow:hidden;background:var(--bg-soft)}
.p-card__media img{width:100%;height:100%;object-fit:cover;transition:transform .35s ease}
.p-card:hover .p-card__media img{transform:scale(1.03)}
.p-card__body{display:flex;flex-direction:column;flex:1;padding:20px 22px 22px}
.badge-row{display:flex;flex-wrap:wrap;gap:6px;margin-bottom:12px}
.badge{display:inline-flex;align-items:center;padding:3px 10px;border-radius:999px;font-size:12.5px;font-weight:500;line-height:1.6;background:var(--brand-light);color:var(--brand-dark)}
.badge--accent{background:#FFF1E7;color:#B45309}
.badge--line{background:#fff;border:1px solid var(--line);color:var(--muted)}
.p-card__title{font-size:17px;font-weight:600;line-height:1.5;color:var(--ink);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.p-card__title a{color:inherit}
.p-card__title a:hover{color:var(--brand)}
.p-card__meta{margin-top:8px;font-size:14px;color:var(--muted);display:-webkit-box;-webkit-line-clamp:1;-webkit-box-orient:vertical;overflow:hidden}
.p-card__stat{margin-top:14px;display:flex;align-items:baseline;gap:8px;font-variant-numeric:tabular-nums}
.p-card__stat strong{font-size:20px;font-weight:700;color:var(--brand-dark);letter-spacing:-.2px}
.p-card__stat span{font-size:13px;color:var(--faint)}
.p-card__foot{margin-top:auto;padding-top:18px}

/* ============ 使用反馈轮播 ============ */
.review-row{display:grid;grid-template-columns:1fr;gap:24px}
@media (min-width:992px){.review-row{grid-template-columns:repeat(2,1fr)}}
.review-card{display:flex;flex-direction:column;height:100%;background:#fff;border:1px solid var(--line);border-radius:var(--r-card);padding:24px;box-shadow:var(--sh-1)}
.review-top{display:flex;align-items:center;gap:12px;margin-bottom:14px}
.avatar-ini{display:inline-flex;align-items:center;justify-content:center;width:40px;height:40px;border-radius:50%;background:var(--brand-light);color:var(--brand-dark);font-size:16px;font-weight:700;flex:0 0 auto}
.review-src{font-size:14px;font-weight:600;color:var(--ink)}
.review-stars{margin-left:auto;color:var(--accent);font-size:14px;letter-spacing:2px;white-space:nowrap}
.review-text{font-size:15px;line-height:1.85;color:var(--body-c);display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden}
@media (max-width:991.98px){.review-col--second{display:none}}
#reviewCarousel{margin-bottom:8px}
#reviewCarousel .carousel-inner{overflow:visible}
#reviewCarousel .carousel-control-prev,
#reviewCarousel .carousel-control-next{width:44px;height:44px;top:calc(50% - 34px);bottom:auto;opacity:1;background:#fff;border:1px solid var(--line);border-radius:50%;box-shadow:var(--sh-card);transition:background-color .18s ease,border-color .18s ease,transform .18s ease}
#reviewCarousel .carousel-control-prev{left:-8px}
#reviewCarousel .carousel-control-next{right:-8px}
#reviewCarousel .carousel-control-prev:hover,
#reviewCarousel .carousel-control-next:hover{background:var(--brand-light);border-color:#C9DBF8;transform:translateY(-1px)}
.carousel-control-prev-icon,.carousel-control-next-icon{width:10px;height:10px;background-image:none;border-top:2px solid var(--brand);border-right:2px solid var(--brand)}
.carousel-control-prev-icon{transform:rotate(-135deg);margin-left:4px}
.carousel-control-next-icon{transform:rotate(45deg);margin-right:4px}
#reviewCarousel .carousel-indicators{position:static;justify-content:center;margin:26px 0 0;gap:8px}
#reviewCarousel .carousel-indicators [data-bs-target]{width:22px;height:4px;border-radius:999px;background:#D5DCE8;border:0;opacity:1;margin:0;transition:background-color .2s ease,width .2s ease}
#reviewCarousel .carousel-indicators .active{background:var(--brand);width:34px}
@media (max-width:991.98px){
  #reviewCarousel .carousel-control-prev,
  #reviewCarousel .carousel-control-next{display:none}
}

/* ============ 保障条 ============ */
.assure-band{background:var(--bg-soft);border-radius:16px;padding:36px 32px}
@media (max-width:767.98px){.assure-band{padding:28px 20px}}
.assure-grid{display:grid;grid-template-columns:1fr;gap:24px}
@media (min-width:768px){.assure-grid{grid-template-columns:repeat(2,1fr)}}
@media (min-width:992px){.assure-grid{grid-template-columns:repeat(4,1fr)}}
.assure-item{display:flex;gap:14px;align-items:flex-start}
.assure-icon{flex:0 0 auto;width:26px;height:26px;color:var(--brand);margin-top:1px}
.assure-icon svg{width:26px;height:26px}
.assure-item h3{font-size:15px;font-weight:600;color:var(--ink)}
.assure-item p{margin-top:4px;font-size:13px;line-height:1.7;color:var(--muted)}

/* ============ 深色转化条 ============ */
.cta-band{background:var(--dark);border-radius:var(--r-hero);padding:44px;display:grid;grid-template-columns:1fr;gap:32px;align-items:center}
@media (min-width:992px){.cta-band{grid-template-columns:1fr 1fr;padding:48px 52px}}
@media (max-width:767.98px){.cta-band{padding:32px 22px;border-radius:16px}}
.cta-copy h2{color:#fff;font-size:clamp(22px,2.2vw,27px);letter-spacing:-.3px}
.cta-copy p{margin-top:12px;font-size:15px;line-height:1.8;color:#BFC8D6;max-width:460px}
.cta-form{display:grid;grid-template-columns:1fr;gap:16px}
@media (min-width:576px){.cta-form{grid-template-columns:1fr 1fr;align-items:end}.cta-form .field--full{grid-column:1/-1}}
.cta-form .field{display:grid;gap:7px}
.cta-form label{font-size:13px;color:#AEB8C7}
.cta-form input{width:100%;height:44px;border-radius:var(--r-btn);border:1px solid #2A3345;background:rgba(255,255,255,.06);color:#fff;padding:0 14px;font-size:14px;outline:none;transition:border-color .18s ease,background-color .18s ease}
.cta-form input::placeholder{color:#79839A}
.cta-form input:focus{border-color:#4B84E6;background:rgba(255,255,255,.1);outline:2px solid rgba(127,169,239,.6);outline-offset:0}
.cta-note{font-size:13px;color:#8C97A8;margin-top:4px}

/* ============ 资讯列表 ============ */
.news-grid{display:grid;grid-template-columns:1fr;gap:20px}
@media (min-width:992px){.news-grid{grid-template-columns:repeat(2,1fr)}}
.news-card{display:grid;grid-template-columns:150px 1fr;gap:18px;background:#fff;border:1px solid var(--line);border-radius:var(--r-card);padding:16px;box-shadow:var(--sh-1);transition:transform .2s ease,box-shadow .2s ease}
.news-card:hover{transform:translateY(-2px);box-shadow:var(--sh-hover)}
@media (max-width:479.98px){.news-card{grid-template-columns:1fr}}
.news-card__media{display:block;aspect-ratio:4/3;border-radius:var(--r-img);overflow:hidden;background:var(--bg-soft)}
.news-card__media img{width:100%;height:100%;object-fit:cover;transition:transform .35s ease}
.news-card:hover .news-card__media img{transform:scale(1.04)}
.news-card__body{display:flex;flex-direction:column;min-width:0}
.news-meta{display:flex;align-items:center;gap:10px;margin-bottom:8px;flex-wrap:wrap}
.news-time{font-size:13px;color:var(--faint);font-variant-numeric:tabular-nums}
.news-title{font-size:16.5px;font-weight:600;line-height:1.5;color:var(--ink);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.news-title a{color:inherit}
.news-title a:hover{color:var(--brand)}
.news-desc{margin-top:8px;font-size:14px;line-height:1.7;color:var(--muted);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.empty-state{display:flex;flex-direction:column;align-items:center;justify-content:center;text-align:center;padding:56px 24px;border:1px dashed #D3DCEA;border-radius:var(--r-card);background:#fff}
.empty-state svg{width:34px;height:34px;color:var(--faint);margin-bottom:14px}
.empty-state p{font-size:15px;font-weight:600;color:var(--body-c)}
.empty-state span{margin-top:6px;font-size:13px;color:var(--faint)}

/* ============ FAQ ============ */
.faq-wrap{max-width:860px}
.faq-acc .accordion-item{border:0;border-bottom:1px solid var(--line);background:transparent}
.faq-acc .accordion-item:first-child{border-top:1px solid var(--line)}
.faq-acc .accordion-button{display:flex;align-items:center;width:100%;padding:20px 0;background:transparent;box-shadow:none;border:0;font-size:17px;font-weight:600;color:var(--ink);transition:color .2s ease}
.faq-acc .accordion-button:not(.collapsed){color:var(--brand);background:transparent;box-shadow:none}
.faq-acc .accordion-button:focus{box-shadow:none;outline:2px solid var(--brand);outline-offset:-2px;border-radius:6px}
.faq-acc .accordion-button::after{display:none}
.faq-mark{position:relative;flex:0 0 16px;width:16px;height:16px;margin-left:auto}
.faq-mark::before,.faq-mark::after{content:"";position:absolute;background:var(--brand);border-radius:2px;transition:transform .2s ease}
.faq-mark::before{left:0;right:0;top:7px;height:2px}
.faq-mark::after{top:0;bottom:0;left:7px;width:2px}
.faq-acc .accordion-button[aria-expanded="true"] .faq-mark::after{transform:scaleY(0)}
.faq-acc .accordion-body{padding:0 40px 22px 0;font-size:15px;line-height:1.85;color:var(--muted)}

/* ============ 页脚 ============ */
.site-footer{background:var(--bg-soft);border-top:1px solid var(--line);padding-top:56px}
.footer-grid{display:grid;grid-template-columns:1fr;gap:36px;padding-bottom:44px}
@media (min-width:768px){.footer-grid{grid-template-columns:repeat(2,1fr)}}
@media (min-width:992px){.footer-grid{grid-template-columns:1.6fr 1fr 1fr 1.2fr}}
.footer-brand .brand{margin-bottom:4px}
.footer-brand p{margin-top:14px;font-size:14px;line-height:1.85;color:var(--muted);max-width:330px}
.footer-col h4{font-size:15px;font-weight:600;color:var(--ink);margin-bottom:14px}
.footer-col a{display:block;padding:6px 0;font-size:14px;color:var(--muted);transition:color .18s ease,transform .18s ease}
.footer-col a:hover{color:var(--brand);transform:translateX(2px)}
.footer-contact li{font-size:14px;color:var(--muted);line-height:1.8;margin-bottom:8px}
.qr-slot{display:flex;align-items:center;justify-content:center;width:96px;height:96px;margin-top:12px;border:1px dashed #C9D3E4;border-radius:var(--r-img);background:#fff;font-size:12px;line-height:1.5;color:var(--faint);text-align:center;padding:8px}
.footer-bottom{display:flex;justify-content:space-between;gap:12px;flex-wrap:wrap;border-top:1px solid var(--line);padding:20px 0;font-size:13px;color:var(--faint)}
.footer-bottom a{color:var(--faint)}
.footer-bottom a:hover{color:var(--brand)}

/* roulang page: article */
:root{
  --bs-primary:#1B5FD9;
  --bs-body-font-family:-apple-system,"PingFang SC","Microsoft YaHei","Noto Sans SC",sans-serif;
  --bs-border-radius:14px;
  --bs-link-color:#1B5FD9;
  --bs-link-hover-color:#123C8C;

  --brand:#1B5FD9;
  --brand-dark:#123C8C;
  --brand-soft:#E8F0FE;
  --accent:#FF8A3D;
  --ink:#101828;
  --body:#344054;
  --muted:#667085;
  --faint:#98A2B3;
  --line:#E4E9F2;
  --bg:#FFFFFF;
  --bg-soft:#F5F7FB;
  --dark:#0F172A;
  --r-card:14px;
  --r-img:12px;
  --r-hero:20px;
  --r-btn:10px;
  --r-pill:999px;
  --sh-1:0 1px 2px rgba(16,24,40,.05);
  --sh-card:0 8px 24px rgba(16,24,40,.07);
  --sh-hover:0 12px 32px rgba(16,24,40,.10);
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body{
  margin:0;
  font-family:-apple-system,"PingFang SC","Microsoft YaHei","Noto Sans SC",sans-serif;
  font-size:16px;
  line-height:1.75;
  color:var(--body);
  background:var(--bg);
  overflow-x:hidden;
}
img{max-width:100%;display:block;}
a{color:var(--brand);text-decoration:none;transition:color .18s ease;}
a:hover{color:var(--brand-dark);}
button{font-family:inherit;}
h1,h2,h3,h4{color:var(--ink);margin:0;font-weight:700;letter-spacing:.1px;}
p{margin:0;}
ul,ol{margin:0;padding:0;list-style:none;}
.shell{max-width:1200px;margin:0 auto;padding:0 24px;width:100%;}
.num{font-variant-numeric:tabular-nums;}

/* ============ 按钮 / 徽章 ============ */
.btn-x{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:44px;padding:0 22px;border-radius:var(--r-btn);
  font-size:15px;font-weight:600;line-height:1;text-decoration:none;
  border:1px solid transparent;cursor:pointer;white-space:nowrap;
  transition:background-color .18s ease,color .18s ease,border-color .18s ease,transform .18s ease,box-shadow .18s ease;
}
.btn-x.sm{height:36px;padding:0 16px;font-size:14px;}
.btn-x.primary{background:var(--brand);color:#fff;}
.btn-x.primary:hover{background:var(--brand-dark);color:#fff;transform:translateY(-1px);box-shadow:var(--sh-card);}
.btn-x.primary:active{transform:translateY(0);}
.btn-x.ghost{background:#fff;border-color:#C9DAF7;color:var(--brand);}
.btn-x.ghost:hover{background:var(--brand-soft);border-color:var(--brand);color:var(--brand-dark);}
.btn-x:focus-visible{outline:2px solid var(--brand);outline-offset:2px;}
.badge-x{
  display:inline-flex;align-items:center;height:26px;padding:0 12px;
  border-radius:var(--r-pill);background:var(--brand-soft);color:var(--brand-dark);
  font-size:12.5px;font-weight:500;line-height:1;white-space:nowrap;
}

/* ============ 顶部导航 ============ */
.site-header{
  position:sticky;top:0;z-index:1030;background:#fff;
  border-bottom:1px solid var(--line);
  box-shadow:var(--sh-1);
  transition:box-shadow .2s ease;
}
.site-header.is-scrolled{box-shadow:0 4px 16px rgba(16,24,40,.08);}
.header-inner{display:flex;align-items:center;gap:20px;height:68px;}
.brand{
  display:inline-flex;align-items:center;gap:10px;
  color:var(--brand-dark);font-size:19px;font-weight:700;letter-spacing:.2px;
  text-decoration:none;flex:none;
}
.brand:hover{color:var(--brand-dark);}
.brand-icon{
  width:34px;height:34px;border-radius:10px;background:var(--brand-soft);color:var(--brand);
  display:inline-flex;align-items:center;justify-content:center;flex:none;
}
.brand-icon svg{width:20px;height:20px;}
.nav-links{display:flex;align-items:center;gap:4px;margin-left:6px;flex:1 1 auto;}
.nav-link-x{
  position:relative;padding:10px 12px;font-size:15px;font-weight:500;
  color:var(--body);text-decoration:none;border-radius:8px;
  transition:color .18s ease;
}
.nav-link-x::after{
  content:"";position:absolute;left:12px;right:12px;bottom:3px;height:2px;
  background:var(--brand);border-radius:2px;
  transform:scaleX(0);transform-origin:left;transition:transform .18s ease;
}
.nav-link-x:hover{color:var(--brand);}
.nav-link-x:hover::after,.nav-link-x.active::after{transform:scaleX(1);}
.nav-link-x.active{color:var(--brand);font-weight:600;}
.header-actions{display:flex;align-items:center;gap:12px;margin-left:auto;flex:none;}
.search-box{
  display:flex;align-items:center;gap:8px;height:40px;padding:0 14px;
  width:228px;border:1px solid var(--line);border-radius:var(--r-pill);
  background:var(--bg-soft);
  transition:border-color .18s ease,background-color .18s ease,box-shadow .18s ease;
}
.search-box:focus-within{border-color:var(--brand);background:#fff;box-shadow:0 0 0 2px rgba(27,95,217,.12);}
.search-box svg{width:16px;height:16px;color:var(--faint);flex:none;}
.search-box input{
  border:0;background:transparent;outline:none;width:100%;
  font-size:14px;color:var(--body);font-family:inherit;
}
.search-box input::placeholder{color:var(--faint);}
.nav-toggle{
  display:none;width:42px;height:42px;padding:0;
  border:1px solid var(--line);border-radius:10px;background:#fff;
  flex-direction:column;align-items:center;justify-content:center;gap:4px;cursor:pointer;
  transition:border-color .18s ease,background-color .18s ease;
}
.nav-toggle:hover{border-color:var(--brand);background:var(--brand-soft);}
.nav-toggle span{display:block;width:18px;height:2px;border-radius:2px;background:var(--body);}
.mobile-drawer{display:none;}
.mobile-nav a{
  display:block;padding:13px 2px;font-size:15px;color:var(--body);
  text-decoration:none;border-bottom:1px solid var(--line);
}
.mobile-nav a:hover{color:var(--brand);}
.mobile-nav a:last-child{border-bottom:0;}
.mobile-search{width:100%;margin:14px 0 6px;background:#fff;}
.mobile-cta{width:100%;margin-top:14px;}

/* ============ 文章头部 ============ */
.article-hero{
  background:linear-gradient(180deg,#F5F7FB 0%,#FFFFFF 100%);
  border-bottom:1px solid var(--line);
  padding:26px 0 40px;
}
.crumbs{
  display:flex;flex-wrap:wrap;align-items:center;gap:8px;
  font-size:13px;color:var(--faint);margin-bottom:22px;
}
.crumbs a{color:var(--faint);text-decoration:none;}
.crumbs a:hover{color:var(--brand);}
.crumbs .sep{color:#CBD5E1;}
.crumbs .current{
  color:var(--brand);font-weight:500;
  max-width:340px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;
}
.article-head{max-width:840px;}
.article-head h1{
  font-size:clamp(24px,2.7vw,36px);
  line-height:1.35;
  margin:16px 0 18px;
}
.article-meta{
  display:flex;flex-wrap:wrap;align-items:center;gap:12px;
  font-size:13.5px;color:var(--muted);
}
.article-meta .dot-sep{width:1px;height:12px;background:var(--line);display:inline-block;}

/* ============ 正文 ============ */
.article-wrap{padding:48px 0 24px;}
.article-body{
  max-width:820px;margin:0 auto;
  font-size:17px;line-height:1.9;color:var(--body);
  word-break:break-word;
}
.article-body > *:first-child{margin-top:0;}
.article-body p{margin:0 0 1.1em;}
.article-body h2{
  font-size:22px;font-weight:600;line-height:1.4;color:var(--ink);
  margin:32px 0 12px;padding-left:12px;border-left:4px solid var(--brand);
}
.article-body h3{font-size:18px;font-weight:600;line-height:1.5;color:var(--ink);margin:26px 0 10px;}
.article-body h4{font-size:16.5px;font-weight:600;color:var(--ink);margin:20px 0 8px;}
.article-body img{border-radius:var(--r-img);margin:22px auto;height:auto;}
.article-body figure{margin:22px 0;}
.article-body figcaption,.article-body .caption{
  font-size:13px;color:var(--faint);text-align:center;margin-top:8px;
}
.article-body blockquote{
  margin:22px 0;padding:16px 20px;background:var(--bg-soft);
  border-left:3px solid var(--accent);border-radius:0 10px 10px 0;
  color:var(--body);font-size:16px;
}
.article-body blockquote p:last-child{margin-bottom:0;}
.article-body ul{margin:0 0 1.1em;}
.article-body ul li{position:relative;padding-left:20px;margin-bottom:8px;}
.article-body ul li::before{
  content:"";position:absolute;left:3px;top:.75em;width:6px;height:6px;
  background:var(--brand);border-radius:2px;transform:rotate(45deg);
}
.article-body ol{counter-reset:olc;margin:0 0 1.1em;}
.article-body ol li{position:relative;padding-left:30px;margin-bottom:9px;counter-increment:olc;}
.article-body ol li::before{
  content:counter(olc);position:absolute;left:0;top:3px;
  width:20px;height:20px;border-radius:50%;background:var(--brand-soft);color:var(--brand);
  font-size:12px;font-weight:600;line-height:20px;text-align:center;
}
.article-body table{width:100%;border-collapse:collapse;margin:22px 0;font-size:15px;}
.article-body th{background:var(--bg-soft);color:var(--ink);font-weight:600;text-align:left;}
.article-body th,.article-body td{padding:11px 14px;border-bottom:1px solid var(--line);}
.article-body tbody tr:nth-child(even){background:#FAFBFD;}
.article-body a{border-bottom:1px solid rgba(27,95,217,.35);}
.article-body a:hover{border-bottom-color:var(--brand-dark);}
.article-body code{
  background:var(--bg-soft);border-radius:6px;padding:2px 6px;
  font-size:14.5px;color:var(--brand-dark);
}
.article-body hr{border:0;border-top:1px solid var(--line);margin:32px 0;}

/* 文末 */
.article-foot{
  max-width:820px;margin:0 auto;padding-top:26px;margin-top:40px;
  border-top:1px solid var(--line);
}
.tag-row{display:flex;flex-wrap:wrap;align-items:center;gap:8px;margin-bottom:26px;}
.tag-row .label{font-size:13px;color:var(--faint);margin-right:2px;}
.tag-x{
  display:inline-flex;align-items:center;height:29px;padding:0 13px;
  border:1px solid var(--line);border-radius:var(--r-pill);background:#fff;
  font-size:13px;color:var(--muted);text-decoration:none;
  transition:border-color .18s ease,color .18s ease,background-color .18s ease;
}
.tag-x:hover{border-color:var(--brand);color:var(--brand);background:var(--brand-soft);}
.foot-actions{display:flex;flex-wrap:wrap;gap:12px;}

/* 空状态 */
.empty-state{
  max-width:820px;margin:0 auto;padding:64px 28px;text-align:center;
  background:var(--bg-soft);border:1px dashed #D6DEEB;border-radius:var(--r-card);
}
.empty-state .empty-icon{
  width:56px;height:56px;margin:0 auto 18px;border-radius:16px;
  background:#fff;color:var(--faint);display:flex;align-items:center;justify-content:center;
  box-shadow:var(--sh-1);
}
.empty-state .empty-icon svg{width:26px;height:26px;}
.empty-state .empty-title{font-size:19px;font-weight:600;color:var(--ink);margin-bottom:8px;}
.empty-state .empty-sub{font-size:14.5px;color:var(--muted);margin-bottom:24px;}

/* ============ 延伸阅读 ============ */
.related-section{background:var(--bg-soft);padding:60px 0;margin-top:56px;}
.section-head{
  display:flex;align-items:flex-end;justify-content:space-between;gap:16px;
  margin-bottom:26px;flex-wrap:wrap;
}
.section-title{font-size:26px;line-height:1.3;}
.section-desc{font-size:14.5px;color:var(--muted);margin-top:8px;}
.related-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px;}
.mini-card{
  display:flex;flex-direction:column;background:#fff;
  border:1px solid var(--line);border-radius:var(--r-card);overflow:hidden;
  box-shadow:var(--sh-1);text-decoration:none;color:inherit;
  transition:transform .2s ease,box-shadow .2s ease;
}
.mini-card:hover{transform:translateY(-2px);box-shadow:var(--sh-hover);color:inherit;}
.mini-card .thumb{overflow:hidden;background:#E8EDF5;}
.mini-card .thumb img{width:100%;aspect-ratio:16/10;object-fit:cover;transition:transform .3s ease;}
.mini-card:hover .thumb img{transform:scale(1.03);}
.mini-body{padding:18px 20px 22px;display:flex;flex-direction:column;gap:10px;}
.mini-body h3{
  font-size:16.5px;font-weight:600;line-height:1.5;color:var(--ink);
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.mini-body p{
  font-size:13.5px;line-height:1.7;color:var(--muted);
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.mini-meta{font-size:12.5px;color:var(--faint);font-variant-numeric:tabular-nums;}

/* ============ CTA 条 ============ */
.cta-band{padding:56px 0;}
.cta-inner{
  background:var(--brand-soft);border-radius:18px;
  padding:34px 38px;display:flex;align-items:center;justify-content:space-between;
  gap:28px;flex-wrap:wrap;
}
.cta-inner h2{font-size:clamp(20px,2vw,25px);line-height:1.4;margin-bottom:10px;}
.cta-inner p{font-size:15px;color:var(--muted);max-width:560px;}

/* ============ 页脚 ============ */
.site-footer{background:var(--dark);color:#C3CBD9;padding:58px 0 0;}
.footer-grid{
  display:grid;grid-template-columns:1.6fr 1fr 1fr 1.25fr;gap:36px;
  padding-bottom:40px;
}
.footer-brand .brand{color:#fff;}
.footer-brand .brand:hover{color:#fff;}
.footer-brand .brand-icon{background:rgba(143,182,255,.14);color:#8FB6FF;}
.footer-brand p{font-size:14px;line-height:1.85;color:#98A2B3;margin-top:16px;max-width:310px;}
.footer-col h4{font-size:15px;font-weight:600;color:#fff;margin-bottom:16px;}
.footer-col a{
  display:block;font-size:14px;color:#C3CBD9;text-decoration:none;
  margin-bottom:11px;transition:color .18s ease,transform .18s ease;
}
.footer-col a:hover{color:#8FB6FF;transform:translateX(2px);}
.footer-contact{font-size:14px;line-height:2;color:#C3CBD9;}
.qr-slot{
  margin-top:16px;width:98px;height:98px;border-radius:12px;
  border:1px dashed rgba(255,255,255,.25);background:rgba(255,255,255,.04);
  display:flex;align-items:center;justify-content:center;text-align:center;
  font-size:12px;line-height:1.6;color:#8A94A6;
}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.1);
  padding:20px 0 26px;display:flex;flex-wrap:wrap;gap:12px;
  align-items:center;justify-content:space-between;
  font-size:13px;color:#8A94A6;
}

/* ============ 响应式 ============ */
@media (min-width:1400px){
  .shell{max-width:1280px;}
}
@media (max-width:1199.98px){
  .shell{max-width:960px;}
}
@media (max-width:991.98px){
  .shell{max-width:720px;}
  .nav-links{display:none;}
  .header-actions .search-box{display:none;}
  .header-actions .btn-x.sm{display:none;}
  .header-inner{height:60px;gap:12px;}
  .nav-toggle{display:flex;margin-left:auto;}
  .mobile-drawer{
    display:block;max-height:0;overflow:hidden;
    border-top:1px solid var(--line);background:#fff;
    transition:max-height .28s ease;
  }
  .mobile-drawer.is-open{max-height:520px;}
  .mobile-drawer .shell{padding-top:6px;padding-bottom:22px;}
  .related-grid{grid-template-columns:repeat(2,1fr);}
  .footer-grid{grid-template-columns:1fr 1fr;gap:30px;}
}
@media (max-width:767.98px){
  .article-hero{padding:20px 0 30px;}
  .article-wrap{padding:34px 0 16px;}
  .article-body{font-size:16px;line-height:1.85;}
  .article-body h2{font-size:20px;margin:26px 0 10px;}
  .article-body h3{font-size:17px;}
  .related-section{padding:44px 0;}
  .section-title{font-size:22px;}
  .related-grid{grid-template-columns:1fr;gap:18px;}
  .cta-band{padding:40px 0;}
  .cta-inner{padding:26px 22px;flex-direction:column;align-items:flex-start;}
  .cta-inner .btn-x{width:100%;max-width:320px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
}
@media (max-width:575.98px){
  .shell{padding:0 16px;}
  .brand-text{font-size:17px;}
  .crumbs .current{max-width:180px;}
  .article-meta{gap:8px;font-size:13px;}
  .footer-grid{grid-template-columns:1fr;}
  .foot-actions .btn-x{width:100%;}
}

/* roulang page: category1 */
:root{
  --bs-primary:#1B5FD9;
  --bs-body-font-family:-apple-system,"PingFang SC","Microsoft YaHei","Noto Sans SC",sans-serif;
  --bs-body-color:#344054;
  --bs-border-color:#E4E9F2;
  --bs-link-color:#1B5FD9;
  --bs-link-hover-color:#123C8C;

  --brand:#1B5FD9;
  --brand-dark:#123C8C;
  --brand-soft:#E8F0FE;
  --accent:#FF8A3D;
  --title:#101828;
  --text:#344054;
  --muted:#667085;
  --faint:#98A2B3;
  --line:#E4E9F2;
  --bg:#FFFFFF;
  --bg-soft:#F5F7FB;
  --dark:#0F172A;
  --r-card:14px;
  --r-img:12px;
  --r-hero:20px;
  --r-btn:10px;
  --r-pill:999px;
  --sh-1:0 1px 2px rgba(16,24,40,.05);
  --sh-2:0 8px 24px rgba(16,24,40,.07);
  --sh-3:0 12px 32px rgba(16,24,40,.10);
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  font-family:-apple-system,"PingFang SC","Microsoft YaHei","Noto Sans SC",sans-serif;
  font-size:16px;
  line-height:1.75;
  color:var(--text);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{color:var(--brand);text-decoration:none;transition:color .2s ease}
a:hover{color:var(--brand-dark)}
h1,h2,h3,h4{margin:0;color:var(--title);font-weight:700;line-height:1.3}
h1{font-size:clamp(28px,3.4vw,44px);line-height:1.25}
h2{font-size:clamp(24px,2.4vw,31px)}
h3{font-size:20px;font-weight:600}
p{margin:0}
ul{margin:0;padding:0;list-style:none}
button{font-family:inherit}
input{font-family:inherit}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px}

.shell{width:100%;max-width:1200px;margin:0 auto;padding:0 24px}
@media (min-width:992px) and (max-width:1199.98px){.shell{max-width:960px}}
@media (min-width:1200px) and (max-width:1399.98px){.shell{max-width:1140px}}
@media (min-width:1400px){.shell{max-width:1280px}}
@media (max-width:767.98px){.shell{padding:0 16px}}

/* ============ 顶部导航 ============ */
.site-header{
  position:sticky;top:0;z-index:1030;
  background:#fff;
  border-bottom:1px solid var(--line);
  box-shadow:var(--sh-1);
  transition:box-shadow .25s ease;
}
.site-header.scrolled{box-shadow:0 4px 16px rgba(16,24,40,.08)}
.header-inner{display:flex;align-items:center;gap:26px;height:68px}
.brand{display:inline-flex;align-items:center;gap:10px;flex:none}
.brand-icon{
  width:32px;height:32px;border-radius:9px;background:var(--brand-soft);color:var(--brand);
  display:inline-flex;align-items:center;justify-content:center;flex:none;
}
.brand-icon svg{width:19px;height:19px}
.brand-text{font-size:19px;font-weight:700;color:var(--brand-dark);letter-spacing:.2px}
.nav-links{display:flex;align-items:center;gap:26px;margin-left:6px}
.nav-link-x{
  position:relative;display:inline-block;padding:6px 0;font-size:15px;font-weight:500;color:var(--text);
}
.nav-link-x::after{
  content:"";position:absolute;left:0;right:100%;bottom:0;height:2px;background:var(--brand);
  transition:right .18s ease;
}
.nav-link-x:hover{color:var(--brand)}
.nav-link-x:hover::after{right:0}
.nav-link-x.active{color:var(--brand);font-weight:600}
.nav-link-x.active::after{right:0}
.header-tools{margin-left:auto;display:flex;align-items:center;gap:12px}
.search-box{
  display:flex;align-items:center;gap:8px;height:40px;width:230px;padding:0 14px;
  border:1px solid var(--line);border-radius:var(--r-pill);background:var(--bg-soft);
  transition:border-color .2s ease,background .2s ease;
}
.search-box:focus-within{border-color:var(--brand);background:#fff;outline:2px solid var(--brand);outline-offset:1px}
.search-box svg{width:16px;height:16px;color:var(--faint);flex:none}
.search-box input{border:0;background:transparent;outline:none;width:100%;font-size:14px;color:var(--text)}
.search-box input::placeholder{color:var(--faint)}
.menu-toggle{
  display:none;width:40px;height:40px;border-radius:var(--r-btn);border:1px solid var(--line);
  background:#fff;align-items:center;justify-content:center;color:var(--title);cursor:pointer;
}
.menu-toggle svg{width:20px;height:20px}
.mobile-drawer{display:none;border-top:1px solid var(--line);background:#fff;padding:14px 0 18px}
.mobile-drawer.open{display:block}
.drawer-link{
  display:block;padding:12px 2px;font-size:15px;color:var(--text);border-bottom:1px solid var(--line);
}
.drawer-link.active{color:var(--brand);font-weight:600}
.drawer-cta{margin-top:16px;width:100%}

/* ============ 按钮 ============ */
.btn-x{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:44px;padding:0 22px;border-radius:var(--r-btn);
  font-size:15px;font-weight:600;border:1px solid transparent;cursor:pointer;
  transition:background .2s ease,color .2s ease,transform .2s ease,box-shadow .2s ease,border-color .2s ease;
  white-space:nowrap;
}
.btn-primary-x{background:var(--brand);color:#fff}
.btn-primary-x:hover{background:#1750b8;color:#fff;transform:translateY(-1px);box-shadow:var(--sh-2)}
.btn-primary-x:active{transform:none}
.btn-ghost-x{border-color:var(--brand);color:var(--brand);background:#fff}
.btn-ghost-x:hover{background:var(--brand-soft);color:var(--brand-dark)}
.btn-light-x{background:#fff;color:var(--brand)}
.btn-light-x:hover{background:#eef3ff;color:var(--brand-dark);transform:translateY(-1px)}
.btn-sm-x{height:38px;padding:0 18px;font-size:14px}
.link-cta{display:inline-flex;align-items:center;gap:6px;font-size:15px;font-weight:600;color:var(--brand)}
.link-cta svg{width:16px;height:16px;transition:transform .2s ease}
.link-cta:hover svg{transform:translateX(3px)}

/* ============ 页头 ============ */
.page-hero{
  background:var(--bg-soft);
  border-bottom:1px solid var(--line);
  padding:44px 0 52px;
}
.crumb{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--faint);margin-bottom:18px;flex-wrap:wrap}
.crumb a{color:var(--faint)}
.crumb a:hover{color:var(--brand)}
.crumb .sep{color:#cbd5e6}
.crumb .cur{color:var(--brand)}
.page-hero h1{max-width:860px}
.page-hero .lead{margin-top:16px;max-width:800px;font-size:16px;color:var(--muted)}
.hero-tags{margin-top:22px;display:flex;gap:10px;flex-wrap:wrap}
.tag-x{
  display:inline-flex;align-items:center;height:28px;padding:0 12px;border-radius:var(--r-pill);
  background:#fff;border:1px solid var(--line);color:var(--muted);font-size:13px;font-weight:500;
}
.tag-x.accent{background:#fff3ea;border-color:#ffd9be;color:#b8551a}

/* ============ 板块 ============ */
.section{padding:64px 0}
.section.soft{background:var(--bg-soft)}
.sec-head{max-width:760px;margin-bottom:36px}
.sec-head h2{margin-bottom:12px}
.sec-head p{font-size:16px;color:var(--muted)}
.eyebrow{
  display:inline-block;font-size:13px;font-weight:600;color:var(--brand);
  background:var(--brand-soft);border-radius:var(--r-pill);padding:4px 12px;margin-bottom:14px;
}

/* ============ 左文右图 ============ */
.split{display:grid;grid-template-columns:7fr 5fr;gap:44px;align-items:center}
.split .media{border-radius:var(--r-hero);overflow:hidden;box-shadow:var(--sh-2);background:var(--bg-soft);aspect-ratio:4/3}
.split .media img{width:100%;height:100%;object-fit:cover}
.split h2{margin-bottom:14px}
.split p{color:var(--muted);margin-bottom:18px}
.check-list{display:grid;gap:12px;margin-bottom:26px}
.check-list li{display:flex;gap:10px;align-items:flex-start;font-size:15px;color:var(--text)}
.check-list li::before{
  content:"✓";flex:none;width:20px;height:20px;border-radius:6px;background:var(--brand-soft);
  color:var(--brand);font-size:13px;font-weight:700;display:inline-flex;align-items:center;justify-content:center;margin-top:3px;
}
.split-actions{display:flex;gap:12px;flex-wrap:wrap}

/* ============ 提示条 ============ */
.note-bar{
  background:#fff;border:1px solid var(--line);border-radius:16px;box-shadow:var(--sh-1);
  display:grid;grid-template-columns:repeat(4,1fr);gap:24px;padding:26px 28px;
}
.note-item{display:flex;gap:12px;align-items:flex-start}
.note-ico{flex:none;width:26px;height:26px;color:var(--brand)}
.note-ico svg{width:26px;height:26px}
.note-item strong{display:block;font-size:15px;font-weight:600;color:var(--title);margin-bottom:4px}
.note-item p{font-size:13px;color:var(--muted);line-height:1.7}

/* ============ 对照表 ============ */
.cmp-wrap{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-card);
  box-shadow:var(--sh-1);overflow:hidden;
}
table.cmp{width:100%;border-collapse:collapse}
.cmp thead th{
  background:var(--bg-soft);text-align:left;padding:16px 20px;font-size:14px;font-weight:600;
  color:var(--title);border-bottom:1px solid var(--line);white-space:nowrap;
}
.cmp tbody td{
  padding:16px 20px;font-size:15px;color:var(--text);border-bottom:1px solid var(--line);
  vertical-align:top;
}
.cmp tbody tr:last-child td{border-bottom:0}
.cmp tbody tr:nth-child(even){background:#fafbff}
.cmp tbody tr{transition:background .2s ease}
.cmp tbody tr:hover{background:var(--brand-soft)}
.cmp .cell-strong{font-weight:600;color:var(--title)}
.cmp .pill{
  display:inline-block;padding:2px 10px;border-radius:var(--r-pill);font-size:12px;font-weight:500;
  background:var(--brand-soft);color:var(--brand-dark);
}

/* ============ 图文长列表 ============ */
.zig{display:grid;grid-template-columns:6fr 6fr;gap:48px;align-items:center;padding:28px 0}
.zig + .zig{border-top:1px solid var(--line)}
.zig-media{border-radius:var(--r-card);overflow:hidden;box-shadow:var(--sh-2);background:var(--bg-soft);aspect-ratio:16/10}
.zig-media img{width:100%;height:100%;object-fit:cover;transition:transform .35s ease}
.zig-media:hover img{transform:scale(1.03)}
.zig.reverse .zig-media{order:2}
.zig h3{margin-bottom:12px;font-size:22px}
.zig p{color:var(--muted);margin-bottom:16px}
.zig .mini-list{display:grid;gap:10px}
.zig .mini-list li{display:flex;gap:10px;font-size:15px;color:var(--text)}
.zig .mini-list li::before{
  content:"";flex:none;width:6px;height:6px;border-radius:50%;background:var(--accent);margin-top:9px;
}

/* ============ CTA ============ */
.cta-band{
  background:var(--brand);border-radius:var(--r-hero);padding:38px 42px;color:#fff;
  display:flex;align-items:center;justify-content:space-between;gap:28px;box-shadow:var(--sh-2);
}
.cta-band h2{color:#fff;font-size:26px;margin-bottom:8px}
.cta-band p{color:rgba(255,255,255,.86);font-size:15px;max-width:620px}
.cta-actions{display:flex;gap:12px;flex-wrap:wrap;flex:none}

/* ============ FAQ ============ */
.faq-wrap{max-width:900px}
.faq-acc .accordion-item{background:transparent;border:0;border-bottom:1px solid var(--line)}
.faq-acc .accordion-item:first-child{border-top:1px solid var(--line)}
.faq-acc .accordion-button{
  background:transparent;border-radius:0!important;box-shadow:none;
  padding:20px 46px 20px 0;font-size:17px;font-weight:600;color:var(--title);
  position:relative;
}
.faq-acc .accordion-button:not(.collapsed){color:var(--brand);background:transparent}
.faq-acc .accordion-button:focus{box-shadow:none;outline:2px solid var(--brand);outline-offset:-2px}
.faq-acc .accordion-button::after{display:none}
.faq-acc .accordion-button::before{
  content:"+";position:absolute;right:6px;top:50%;transform:translateY(-50%);
  font-size:22px;font-weight:400;color:var(--faint);line-height:1;transition:color .2s ease;
}
.faq-acc .accordion-button:not(.collapsed)::before{content:"−";color:var(--brand)}
.faq-acc .accordion-body{padding:0 40px 22px 0;font-size:15.5px;color:var(--muted);line-height:1.85}

/* ============ 页脚 ============ */
.site-footer{background:var(--dark);color:#c3cbd9;padding:58px 0 24px;margin-top:8px}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:36px}
.footer-brand .brand{margin-bottom:14px}
.footer-brand .brand-text{color:#fff}
.footer-brand .brand-icon{background:rgba(123,168,245,.16);color:#7FA8F5}
.footer-brand p{font-size:14px;line-height:1.8;color:#98A2B3;max-width:330px}
.footer-col h4{color:#fff;font-size:15px;margin-bottom:14px}
.footer-col a{display:block;padding:5px 0;font-size:14px;color:#98A2B3;transition:color .2s ease,transform .2s ease}
.footer-col a:hover{color:#7FA8F5;transform:translateX(2px)}
.footer-contact li{font-size:14px;color:#98A2B3;padding:4px 0}
.qr-slot{
  margin-top:14px;width:104px;height:104px;border-radius:12px;border:1px dashed rgba(255,255,255,.25);
  display:flex;align-items:center;justify-content:center;text-align:center;
  font-size:12px;line-height:1.6;color:#7f8ba0;
}
.footer-bottom{
  margin-top:44px;padding-top:20px;border-top:1px solid rgba(255,255,255,.08);
  display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13px;color:#7f8ba0;
}

/* ============ 响应式 ============ */
@media (max-width:1199.98px){
  .search-box{width:190px}
  .split{gap:34px}
  .zig{gap:34px}
}
@media (max-width:991.98px){
  .header-inner{height:60px;gap:16px}
  .nav-links{display:none}
  .search-box{display:none}
  .menu-toggle{display:inline-flex}
  .section{padding:48px 0}
  .split{grid-template-columns:1fr;gap:28px}
  .split .media{order:-1}
  .zig{grid-template-columns:1fr;gap:24px;padding:24px 0}
  .zig.reverse .zig-media{order:0}
  .note-bar{grid-template-columns:repeat(2,1fr);gap:20px;padding:22px}
  .cta-band{flex-direction:column;align-items:flex-start;padding:30px 26px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px}
}
@media (max-width:767.98px){
  .page-hero{padding:32px 0 40px}
  .section{padding:44px 0}
  .split-actions .btn-x{flex:1 1 auto;max-width:320px}
  .cmp-wrap{border:0;box-shadow:none;background:transparent;overflow:visible}
  .cmp thead{display:none}
  .cmp,.cmp tbody,.cmp tr,.cmp td{display:block;width:100%}
  .cmp tbody tr{
    background:#fff!important;border:1px solid var(--line);border-radius:var(--r-card);
    box-shadow:var(--sh-1);padding:8px 4px 12px;margin-bottom:14px;
  }
  .cmp tbody td{border-bottom:0;padding:7px 16px}
  .cmp tbody td::before{
    content:attr(data-label);display:block;font-size:12px;color:var(--faint);margin-bottom:2px;
  }
  .cmp .cell-strong{font-size:16.5px;padding-top:12px}
  .cmp .cell-strong::before{display:none}
  .note-bar{grid-template-columns:1fr}
  .cta-band h2{font-size:22px}
  .footer-grid{grid-template-columns:1fr}
}
@media (max-width:575.98px){
  .brand-text{font-size:17px}
  .btn-x{font-size:14px}
  .hero-tags{gap:8px}
}

/* roulang page: category2 */
:root{
  --brand:#1B5FD9;
  --brand-dark:#123C8C;
  --brand-soft:#E8F0FE;
  --accent:#FF8A3D;
  --title:#101828;
  --text:#344054;
  --muted:#667085;
  --faint:#98A2B3;
  --bg:#FFFFFF;
  --bg-soft:#F5F7FB;
  --line:#E4E9F2;
  --dark:#0F172A;
  --font:-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei","Noto Sans SC","Helvetica Neue",Arial,sans-serif;
  --r-card:14px;
  --r-img:12px;
  --r-hero:20px;
  --r-btn:10px;
  --r-pill:999px;
  --sh-1:0 1px 2px rgba(16,24,40,.05);
  --sh-2:0 8px 24px rgba(16,24,40,.07);
  --sh-3:0 12px 32px rgba(16,24,40,.10);
  --sec:72px;

  --bs-primary:#1B5FD9;
  --bs-primary-rgb:27,95,217;
  --bs-body-color:#344054;
  --bs-body-font-family:var(--font);
  --bs-border-color:#E4E9F2;
  --bs-border-radius:10px;
  --bs-link-color:#1B5FD9;
  --bs-link-hover-color:#123C8C;
  --bs-body-bg:#FFFFFF;
}

*,*::before,*::after{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(--text);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{color:var(--brand);text-decoration:none;transition:color .18s ease}
a:hover{color:var(--brand-dark)}
button,input{font:inherit}
h1,h2,h3,h4{color:var(--title);margin:0;letter-spacing:0}
p{margin:0}
ul{margin:0;padding:0;list-style:none}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px}

.shell{width:100%;max-width:1200px;margin:0 auto;padding:0 24px}
@media (min-width:1400px){.shell{max-width:1280px}}
@media (max-width:767.98px){.shell{padding:0 16px}}

.sec{padding:var(--sec) 0}
.sec-soft{background:var(--bg-soft)}
@media (max-width:767.98px){.sec{padding:48px 0}}

/* ---------- 顶部导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:1030;
  background:#fff;
  border-bottom:1px solid var(--line);
  box-shadow:var(--sh-1);
  transition:box-shadow .2s ease;
}
.site-header.is-stuck{box-shadow:0 6px 18px rgba(16,24,40,.08)}
.header-inner{display:flex;align-items:center;gap:20px;min-height:68px}
.brand{display:inline-flex;align-items:center;gap:10px;flex:none}
.brand-icon{
  width:32px;height:32px;border-radius:9px;background:var(--brand-soft);
  color:var(--brand);display:inline-flex;align-items:center;justify-content:center;flex:none;
}
.brand-icon svg{width:20px;height:20px}
.brand-text{font-size:19px;font-weight:700;color:var(--brand-dark);letter-spacing:.2px}
.brand:hover .brand-text{color:var(--brand)}

.nav-links{display:flex;align-items:center;gap:2px;margin-left:10px}
.nav-link-x{
  position:relative;display:inline-block;padding:9px 12px 11px;
  font-size:15px;font-weight:500;color:#475467;border-radius:8px;
  transition:color .18s ease,background .18s ease;
}
.nav-link-x::after{
  content:"";position:absolute;left:12px;right:12px;bottom:4px;height:2px;
  background:var(--brand);border-radius:2px;transform:scaleX(0);transform-origin:left;
  transition:transform .18s ease;
}
.nav-link-x:hover{color:var(--brand)}
.nav-link-x:hover::after,.nav-link-x.active::after{transform:scaleX(1)}
.nav-link-x.active{color:var(--brand);font-weight:600}

.header-tools{display:flex;align-items:center;gap:12px;margin-left:auto}
.search-box{
  display:flex;align-items:center;gap:8px;height:40px;width:220px;
  padding:0 14px;border:1px solid var(--line);border-radius:var(--r-pill);
  background:var(--bg-soft);transition:border-color .18s ease,box-shadow .18s ease;
}
.search-box:focus-within{border-color:var(--brand);box-shadow:0 0 0 3px rgba(27,95,217,.10)}
.search-box svg{width:16px;height:16px;color:var(--faint);flex:none}
.search-box input{border:0;background:transparent;outline:none;width:100%;font-size:14px;color:var(--title)}
.search-box input::placeholder{color:var(--faint)}

.btn-x{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:44px;padding:0 22px;border-radius:var(--r-btn);font-size:15px;font-weight:600;
  border:1px solid transparent;cursor:pointer;white-space:nowrap;
  transition:background .18s ease,color .18s ease,transform .18s ease,box-shadow .18s ease,border-color .18s ease;
}
.btn-primary-x{background:var(--brand);color:#fff;box-shadow:var(--sh-1)}
.btn-primary-x:hover{background:#1852bd;color:#fff;transform:translateY(-1px)}
.btn-primary-x:active{background:#14479f;transform:translateY(0)}
.btn-ghost-x{background:transparent;border-color:var(--brand);color:var(--brand)}
.btn-ghost-x:hover{background:var(--brand-soft);color:var(--brand-dark)}
.btn-light-x{background:#fff;color:var(--brand);border-color:#fff}
.btn-light-x:hover{background:#EDF3FF;color:var(--brand-dark);transform:translateY(-1px)}
.btn-sm-x{height:36px;padding:0 16px;font-size:14px;border-radius:9px}
.btn-block-x{width:100%}

.nav-toggle{
  width:44px;height:44px;display:inline-flex;align-items:center;justify-content:center;
  border:1px solid var(--line);background:#fff;border-radius:var(--r-btn);color:var(--text);cursor:pointer;
}
.nav-toggle:hover{border-color:var(--brand);color:var(--brand)}
.nav-toggle svg{width:20px;height:20px}

@media (max-width:991.98px){
  .nav-links,.search-box,.header-cta{display:none}
  .header-inner{min-height:60px}
}

/* 移动抽屉 */
.mobile-drawer{max-width:320px;border-left:1px solid var(--line)}
.mobile-drawer .offcanvas-header{border-bottom:1px solid var(--line);padding:16px 20px}
.mobile-drawer .offcanvas-body{padding:16px 20px 28px}
.drawer-title{font-size:17px;font-weight:700;color:var(--brand-dark)}
.drawer-link{
  display:block;padding:13px 4px;font-size:15px;color:var(--text);
  border-bottom:1px solid var(--line);
}
.drawer-link:hover{color:var(--brand)}
.drawer-link.active{color:var(--brand);font-weight:600}
.drawer-search{margin:18px 0 16px}
.drawer-search .search-box{display:flex;width:100%}

/* ---------- 页头 ---------- */
.page-head{background:var(--bg-soft);border-bottom:1px solid var(--line);padding:44px 0 40px}
.crumbs{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--faint);flex-wrap:wrap}
.crumbs a{color:var(--faint)}
.crumbs a:hover{color:var(--brand)}
.crumbs .sep{color:#C7D0DE}
.crumbs .cur{color:var(--brand);font-weight:500}
.head-row{display:flex;align-items:flex-end;justify-content:space-between;gap:32px;flex-wrap:wrap;margin-top:16px}
.page-head h1{
  font-size:clamp(28px,3.2vw,40px);line-height:1.25;font-weight:700;color:var(--title);
  max-width:760px;
}
.page-head .lead{margin-top:14px;font-size:17px;line-height:1.8;color:#475467;max-width:720px}
.filter-group{display:flex;gap:8px;flex-wrap:wrap}
.filter-btn{
  height:36px;padding:0 16px;border-radius:var(--r-pill);border:1px solid var(--line);
  background:#fff;color:var(--muted);font-size:14px;cursor:pointer;
  transition:all .18s ease;
}
.filter-btn:hover{border-color:var(--brand);color:var(--brand)}
.filter-btn.active{background:var(--brand);border-color:var(--brand);color:#fff;font-weight:600}
@media (max-width:767.98px){
  .page-head{padding:32px 0 30px}
  .page-head .lead{font-size:15px}
}

/* ---------- 通用区块标题 ---------- */
.sec-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;flex-wrap:wrap;margin-bottom:32px}
.sec-head h2{font-size:clamp(24px,2.6vw,30px);line-height:1.3;font-weight:700}
.sec-head p{margin-top:10px;font-size:15px;color:var(--muted);max-width:640px}
.sec-more{font-size:15px;font-weight:600;display:inline-flex;align-items:center;gap:6px}
.sec-more span{transition:transform .18s ease}
.sec-more:hover span{transform:translateX(3px)}
.kicker{
  display:inline-block;font-size:13px;font-weight:600;color:var(--brand);
  background:var(--brand-soft);border-radius:var(--r-pill);padding:4px 12px;margin-bottom:14px;
}

/* ---------- Bento 网格 ---------- */
.bento{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:20px}
.bento-item{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-card);
  padding:22px;box-shadow:var(--sh-2);overflow:hidden;
  display:flex;flex-direction:column;gap:10px;
  transition:transform .2s ease,box-shadow .2s ease;
}
.bento-item:hover{transform:translateY(-2px);box-shadow:var(--sh-3)}
.bento-item h3{font-size:19px;line-height:1.4;font-weight:600}
.bento-item p{font-size:14px;color:var(--muted);line-height:1.7}
.bento-tag{
  align-self:flex-start;font-size:12px;font-weight:500;color:var(--brand-dark);
  background:var(--brand-soft);border-radius:var(--r-pill);padding:3px 10px;
}
.bento-lg{grid-column:span 2;grid-row:span 2;padding:0;justify-content:flex-start}
.bento-lg .bento-media{aspect-ratio:16/10;overflow:hidden;background:#EEF2F8}
.bento-lg .bento-media img{width:100%;height:100%;object-fit:cover;transition:transform .35s ease}
.bento-lg:hover .bento-media img{transform:scale(1.03)}
.bento-lg .bento-body{padding:22px;display:flex;flex-direction:column;gap:10px}
.bento-wide{grid-column:span 2;flex-direction:row;align-items:center;gap:18px}
.bento-thumb{width:150px;flex:none;aspect-ratio:4/3;border-radius:var(--r-img);overflow:hidden;background:#EEF2F8}
.bento-thumb img{width:100%;height:100%;object-fit:cover}
.bento-wide .bento-copy{display:flex;flex-direction:column;gap:8px}
.bento-num{
  font-size:14px;font-weight:700;color:var(--accent);font-variant-numeric:tabular-nums;
}
@media (max-width:991.98px){
  .bento{grid-template-columns:repeat(2,minmax(0,1fr))}
  .bento-lg{grid-column:span 2;grid-row:auto}
  .bento-wide{grid-column:span 2}
}
@media (max-width:767.98px){
  .bento{grid-template-columns:1fr;gap:16px}
  .bento-lg,.bento-wide{grid-column:span 1}
  .bento-wide{flex-direction:column;align-items:stretch}
  .bento-thumb{width:100%;aspect-ratio:16/10}
}

/* ---------- 流程步骤 ---------- */
.steps{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:20px}
.step{
  position:relative;background:#fff;border:1px solid var(--line);border-radius:var(--r-card);
  padding:24px 20px 22px;box-shadow:var(--sh-2);transition:transform .2s ease,box-shadow .2s ease;
}
.step:hover{transform:translateY(-2px);box-shadow:var(--sh-3)}
.step-num{
  width:40px;height:40px;border-radius:var(--r-pill);background:var(--brand-soft);
  color:var(--brand-dark);font-size:15px;font-weight:700;font-variant-numeric:tabular-nums;
  display:flex;align-items:center;justify-content:center;margin-bottom:14px;
}
.step h3{font-size:18px;font-weight:600;margin-bottom:8px}
.step p{font-size:14px;color:var(--muted);line-height:1.75}
.step:not(:last-child)::after{
  content:"";position:absolute;right:-14px;top:44px;width:8px;height:8px;
  border-top:2px solid #C7D4EA;border-right:2px solid #C7D4EA;transform:rotate(45deg);
}
@media (max-width:991.98px){
  .steps{grid-template-columns:repeat(2,minmax(0,1fr))}
  .step:not(:last-child)::after{display:none}
}
@media (max-width:599.98px){
  .steps{grid-template-columns:1fr;gap:16px}
}

/* ---------- 指标条 ---------- */
.metrics{
  display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px;
  background:#fff;border:1px solid var(--line);border-radius:16px;
  padding:32px 28px;box-shadow:var(--sh-2);
}
.metric{border-left:3px solid var(--brand-soft);padding-left:18px}
.metric:first-child{border-left-color:var(--brand)}
.metric-num{
  font-size:clamp(30px,3.4vw,38px);line-height:1.1;font-weight:700;
  color:var(--brand-dark);font-variant-numeric:tabular-nums;
}
.metric-label{margin-top:8px;font-size:15px;font-weight:600;color:var(--title)}
.metric-desc{margin-top:4px;font-size:13px;color:var(--muted);line-height:1.6}
@media (max-width:767.98px){
  .metrics{grid-template-columns:1fr;gap:22px;padding:24px 20px}
}

/* ---------- FAQ ---------- */
.faq-wrap{max-width:880px}
.faq-acc .accordion-item{background:transparent;border:0;border-bottom:1px solid var(--line)}
.faq-acc .accordion-item:first-child{border-top:1px solid var(--line)}
.faq-acc .accordion-button{
  position:relative;background:transparent;box-shadow:none;border-radius:0;
  padding:20px 46px 20px 0;font-size:16px;font-weight:600;color:var(--title);
  transition:color .2s ease;
}
.faq-acc .accordion-button:not(.collapsed){color:var(--brand);background:transparent;box-shadow:none}
.faq-acc .accordion-button:focus{box-shadow:none;border-color:transparent}
.faq-acc .accordion-button::after{display:none}
.faq-acc .accordion-body{padding:0 46px 22px 0;font-size:15px;color:var(--muted);line-height:1.8}
.faq-sign{position:absolute;right:6px;top:50%;width:18px;height:18px;transform:translateY(-50%)}
.faq-sign::before,.faq-sign::after{
  content:"";position:absolute;background:var(--brand);border-radius:2px;
  transition:transform .2s ease,opacity .2s ease;
}
.faq-sign::before{left:0;top:8px;width:18px;height:2px}
.faq-sign::after{left:8px;top:0;width:2px;height:18px}
.accordion-button:not(.collapsed) .faq-sign::after{transform:scaleY(0);opacity:0}
@media (max-width:767.98px){
  .faq-acc .accordion-button{font-size:15px;padding:16px 42px 16px 0}
  .faq-acc .accordion-body{padding:0 42px 18px 0}
}

/* ---------- CTA ---------- */
.cta-band{
  background:var(--brand);border-radius:var(--r-hero);padding:40px;
  display:flex;align-items:center;justify-content:space-between;gap:28px;flex-wrap:wrap;
  box-shadow:var(--sh-2);
}
.cta-band h2{color:#fff;font-size:clamp(22px,2.4vw,28px);line-height:1.35;font-weight:700;max-width:560px}
.cta-band p{color:rgba(255,255,255,.82);font-size:15px;margin-top:10px;max-width:560px}
.cta-actions{display:flex;gap:12px;flex-wrap:wrap}
@media (max-width:767.98px){
  .cta-band{padding:26px 20px;border-radius:16px}
  .cta-actions{width:100%}
  .cta-actions .btn-x{flex:1 1 auto;min-width:150px}
}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--bg-soft);border-top:1px solid var(--line);padding:56px 0 24px;margin-top:0}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:36px}
.footer-brand .brand{margin-bottom:14px}
.footer-brand p{font-size:14px;color:var(--muted);line-height:1.75;max-width:320px}
.footer-col h4{font-size:15px;font-weight:700;color:var(--title);margin-bottom:14px}
.footer-col a{
  display:block;font-size:14px;color:var(--muted);padding:5px 0;
  transition:color .18s ease,transform .18s ease;
}
.footer-col a:hover{color:var(--brand);transform:translateX(2px)}
.footer-contact li{font-size:14px;color:var(--muted);padding:5px 0;line-height:1.6}
.qr-slot{
  margin-top:14px;width:104px;height:104px;border:1px dashed #C7D4EA;border-radius:12px;
  display:flex;align-items:center;justify-content:center;text-align:center;
  font-size:12px;color:var(--faint);line-height:1.5;background:#fff;
}
.footer-bottom{
  margin-top:40px;padding-top:20px;border-top:1px solid var(--line);
  display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13px;color:var(--faint);
}
@media (max-width:991.98px){
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px}
}
@media (max-width:599.98px){
  .footer-grid{grid-template-columns:1fr;gap:24px}
  .site-footer{padding:40px 0 20px}
}