/* roulang page: index */
:root{
  --primary:#146B9E;
  --primary-dark:#0B4E78;
  --primary-light:#EAF3FB;
  --deep:#0B2B44;
  --deep-2:#123A5C;
  --accent:#E08A1E;
  --coral:#D9654B;
  --bg:#F8FAFC;
  --white:#FFFFFF;
  --ink:#1F2937;
  --muted:#64748B;
  --border:#DCE5F0;
  --line:#E5EAF1;
  --radius:12px;
  --radius-sm:8px;
  --shadow:0 4px 14px rgba(15,23,42,.06);
  --shadow-lg:0 14px 30px rgba(2,32,71,.09);
  --font:system-ui,-apple-system,"Segoe UI",Roboto,"PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;
}
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  font-family:var(--font);
  background:var(--bg);
  color:var(--ink);
  font-size:16px;
  line-height:1.75;
  overflow-x:hidden;
}
img{max-width:100%;height:auto;display:block}
a{color:inherit;text-decoration:none;transition:color .2s ease}
button,input,select,textarea{font-family:inherit;font-size:1rem}
ul,ol{list-style:none}
:focus-visible{outline:3px solid rgba(20,107,158,.28);outline-offset:2px;border-radius:4px}
.container{max-width:1220px;margin:0 auto;padding:0 22px}
.site-main{overflow:hidden}
.section{padding:92px 0}
.section-alt{background:var(--white)}
.section-soft{background:linear-gradient(180deg,var(--primary-light) 0%,#F3F8FC 100%)}
.section-head{margin-bottom:44px}
.section-head h2{font-size:33px;line-height:1.3;font-weight:700;color:var(--deep);letter-spacing:-.02em}
.section-head p{font-size:16px;color:var(--muted);max-width:760px;margin-top:14px}
.eyebrow{display:inline-flex;align-items:center;gap:8px;background:rgba(20,107,158,.09);color:var(--primary);font-size:13px;font-weight:600;padding:6px 13px 6px 10px;border-radius:100px;margin-bottom:18px}
.eyebrow::before{content:"";width:7px;height:7px;border-radius:50%;background:var(--accent)}

/* buttons */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;height:48px;padding:0 26px;border-radius:6px;font-weight:600;font-size:15px;line-height:1;border:1px solid transparent;transition:all .22s ease;white-space:nowrap;cursor:pointer}
.btn-primary{background:var(--primary);color:#fff;box-shadow:0 8px 18px rgba(20,107,158,.2)}
.btn-primary:hover{background:var(--primary-dark);color:#fff;box-shadow:0 12px 24px rgba(20,107,158,.24);transform:translateY(-1px)}
.btn-ghost{background:#fff;color:var(--deep);border-color:#C7D7E5}
.btn-ghost:hover{border-color:var(--primary);color:var(--primary);background:#F8FBFF}
.btn-light{background:#fff;color:var(--primary);box-shadow:0 4px 12px rgba(2,32,71,.12)}
.btn-light:hover{background:#F2F7FC;color:var(--primary-dark);transform:translateY(-1px)}
.btn-link{display:inline-flex;align-items:center;gap:6px;font-weight:600;color:var(--primary);font-size:15px}
.btn-link:hover{color:var(--accent)}
.btn-link .arrow{transition:transform .2s ease}
.btn-link:hover .arrow{transform:translateX(4px)}

/* header */
.site-header{position:sticky;top:0;z-index:60;background:rgba(255,255,255,.96);backdrop-filter:blur(10px);border-bottom:1px solid var(--line);box-shadow:0 1px 0 rgba(15,23,42,.02)}
.header-inner{display:flex;align-items:center;justify-content:space-between;height:74px;gap:18px}
.brand{display:inline-flex;align-items:center;gap:10px;flex-shrink:0}
.brand-mark{width:36px;height:36px;border-radius:10px;background:linear-gradient(135deg,var(--primary) 0%,var(--primary-dark) 100%);display:inline-flex;align-items:center;justify-content:center;box-shadow:0 6px 16px rgba(20,107,158,.3)}
.brand-mark svg{width:22px;height:22px}
.brand-name{font-size:20px;font-weight:800;letter-spacing:-.02em;color:var(--deep);line-height:1.1}
.brand-name span{color:var(--primary)}
.site-nav{display:flex;align-items:center;gap:26px}
.nav-list{display:flex;align-items:center;gap:4px}
.nav-link{display:inline-flex;align-items:center;padding:9px 12px;border-radius:8px;font-size:15px;font-weight:500;color:#334155;line-height:1.4}
.nav-link:hover{color:var(--primary);background:var(--primary-light)}
.nav-link.active{color:var(--primary);background:rgba(20,107,158,.08);font-weight:600}
.header-cta{height:40px;padding:0 18px;display:inline-flex;align-items:center;justify-content:center;background:var(--primary);color:#fff;border-radius:8px;font-size:14px;font-weight:600;transition:background .2s ease}
.header-cta:hover{background:var(--primary-dark);color:#fff}
.nav-toggle{display:none;width:44px;height:44px;align-items:center;justify-content:center;flex-direction:column;gap:5px;border:1px solid var(--line);border-radius:10px;background:#fff;cursor:pointer}
.nav-toggle span{display:block;width:20px;height:2px;background:var(--deep);border-radius:2px;transition:all .3s ease}
.nav-toggle.is-active span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.nav-toggle.is-active span:nth-child(2){opacity:0}
.nav-toggle.is-active span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}

/* hero */
.hero{position:relative;padding:76px 0 84px;background:linear-gradient(125deg,#EAF4FC 0%,#F7FBFE 48%,#FFFFFF 72%);overflow:hidden}
.hero::before{content:"";position:absolute;inset:0;background-image:url('/assets/images/backpic/back-1.png');background-size:cover;background-position:left center;opacity:.18;z-index:0}
.hero .container{position:relative;z-index:2}
.hero-copy{padding-top:14px}
.hero h1{font-size:42px;line-height:1.25;font-weight:800;color:var(--deep);letter-spacing:-.025em;max-width:620px}
.hero h1 em{font-style:normal;color:var(--primary)}
.hero-lead{font-size:16px;line-height:1.9;color:#475569;max-width:560px;margin:24px 0 30px}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:34px}
.hero-tags{display:flex;flex-wrap:wrap;gap:12px}
.hero-tags li{background:#fff;border:1px solid #D9E6F1;border-radius:10px;padding:9px 16px;display:inline-flex;align-items:center;gap:8px;font-size:14px;color:#475569;box-shadow:0 2px 8px rgba(15,23,42,.03)}
.hero-tags li strong{color:var(--deep);font-weight:700}
.hero-tags li i{display:block;width:6px;height:6px;border-radius:50%;background:var(--accent)}
.hero-visual{position:relative}
.hero-visual .img-shell{position:relative;border-radius:18px;overflow:hidden;box-shadow:0 26px 60px rgba(2,32,71,.16);border:1px solid rgba(255,255,255,.6);background:#fff}
.hero-visual .img-shell img{width:100%;height:auto;object-fit:cover}
.hero-visual::after{content:"";position:absolute;width:200px;height:200px;right:-50px;bottom:-54px;background-image:url('/assets/images/backpic/back-2.webp');background-size:cover;opacity:.24;border-radius:30px;z-index:-1}
.float-card{position:absolute;left:-28px;bottom:20px;display:flex;align-items:center;gap:12px;background:#fff;border-radius:14px;padding:13px 18px;box-shadow:var(--shadow-lg);border:1px solid #E3EDF6}
.float-card .fc-ico{width:38px;height:38px;border-radius:10px;background:var(--primary-light);display:flex;align-items:center;justify-content:center;color:var(--primary)}
.float-card strong{display:block;font-size:15px;color:var(--deep);line-height:1.3}
.float-card span{display:block;font-size:12px;color:var(--muted);line-height:1.5}

/* assurance / feature */
.assurance-grid .assure-item{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:28px 22px;box-shadow:var(--shadow);transition:box-shadow .25s ease,border-color .25s ease;height:100%}
.assure-item:hover{box-shadow:var(--shadow-lg);border-color:#C9DBEA}
.assure-id{font-size:13px;font-weight:800;letter-spacing:.12em;color:var(--accent)}
.assure-ico{width:48px;height:48px;border-radius:12px;background:var(--primary-light);color:var(--primary);display:flex;align-items:center;justify-content:center;margin:16px 0 12px}
.assure-item h3{font-size:18px;font-weight:700;color:var(--deep);margin-bottom:10px;line-height:1.45}
.assure-item p{font-size:14px;color:var(--muted);margin:0;line-height:1.8}
.mini-strip{margin-top:36px;display:grid;grid-template-columns:repeat(3,1fr);gap:0;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.mini-strip div{padding:16px 20px;text-align:center;border-right:1px solid var(--line)}
.mini-strip div:last-child{border-right:0}
.mini-strip strong{display:block;font-size:17px;color:var(--primary)}
.mini-strip span{font-size:13px;color:var(--muted)}

/* steps */
.steps-wrap{position:relative}
.steps-line{display:grid;grid-template-columns:repeat(3,1fr);gap:34px;position:relative}
.steps-line::before{content:"";position:absolute;top:50px;left:60px;right:60px;height:2px;background:linear-gradient(90deg,#D7E7F3,#9CC3DF);z-index:0}
.step-card{position:relative;z-index:1;padding:0 8px}
.step-top{display:flex;align-items:center;gap:16px;margin-bottom:20px}
.step-num{width:52px;height:52px;border-radius:14px;background:var(--primary);color:#fff;font-size:21px;font-weight:800;display:flex;align-items:center;justify-content:center;box-shadow:0 10px 22px rgba(20,107,158,.25);line-height:1}
.step-line{width:74px;height:2px;background:linear-gradient(90deg,#C7DDEB,transparent)}
.step-card h3{font-size:19px;font-weight:700;color:var(--deep);margin-bottom:10px}
.step-card p{font-size:14px;line-height:1.85;color:var(--muted);margin:0}

/* showcase */
.showcase-block{margin-bottom:26px}
.main-showcase{background:#fff;border:1px solid var(--line);border-radius:16px;overflow:hidden;box-shadow:var(--shadow);height:100%;display:flex;flex-direction:column}
.main-showcase .show-img{height:260px;overflow:hidden;background:#EAF1F6}
.main-showcase .show-img img{width:100%;height:100%;object-fit:cover}
.main-showcase .show-body{padding:26px 26px 24px}
.main-showcase .badge{display:inline-flex;align-items:center;background:#FDF3E3;color:#B4650A;font-size:12px;font-weight:600;padding:5px 11px;border-radius:100px;margin-bottom:13px}
.main-showcase h3{font-size:20px;font-weight:700;color:var(--deep);line-height:1.5;margin-bottom:10px}
.main-showcase p{font-size:14px;color:var(--muted);line-height:1.85;margin-bottom:18px}
.side-showcase{background:#fff;border:1px solid var(--line);border-radius:16px;padding:16px;display:flex;gap:18px;align-items:center;box-shadow:var(--shadow);margin-bottom:18px;transition:box-shadow .25s ease,border-color .25s ease}
.side-showcase:hover{box-shadow:var(--shadow-lg);border-color:#C9DBEA}
.side-showcase:last-child{margin-bottom:0}
.side-img{flex:0 0 112px;height:92px;border-radius:10px;overflow:hidden;background:#EAF1F6}
.side-img img{width:100%;height:100%;object-fit:cover}
.side-showcase h3{font-size:16px;font-weight:700;color:var(--deep);margin-bottom:6px;line-height:1.45}
.side-showcase p{font-size:13px;color:var(--muted);margin:0;line-height:1.7}
.quote-note{margin-top:44px;background:#fff;border-left:4px solid var(--accent);border-radius:0 14px 14px 0;padding:22px 30px;box-shadow:var(--shadow)}
.quote-note p{font-size:15px;color:#334155;line-height:1.9}
.quote-note cite{display:block;margin-top:8px;font-style:normal;font-size:13px;color:var(--muted)}

/* category index list */
.cate-link-card{display:flex;align-items:flex-start;gap:17px;background:#fff;border:1px solid var(--line);border-radius:14px;padding:22px 20px;box-shadow:var(--shadow);height:100%;transition:all .25s ease}
.cate-link-card:hover{box-shadow:var(--shadow-lg);border-color:#AFCBDE;transform:translateY(-2px)}
.cate-icon{width:46px;height:46px;flex:0 0 46px;border-radius:12px;display:flex;align-items:center;justify-content:center;background:var(--primary-light);color:var(--primary)}
.cate-icon .coral{color:var(--coral)}
.cate-icon .gold{color:var(--accent)}
.cate-link-card h3{font-size:17px;font-weight:700;color:var(--deep);margin-bottom:6px}
.cate-link-card p{font-size:13px;color:var(--muted);margin-bottom:10px;line-height:1.7}
.cate-link-card .btn-link{font-size:13px}

/* FAQ */
.faq-section{background:linear-gradient(180deg,#E9F3FB 0%,#F1F7FC 60%,#F8FAFC 100%)}
.faq-panel .row{max-width:920px;margin:0 auto;float:none}
.site-accordion{border:none;background:transparent}
.site-accordion .accordion-item{list-style:none;background:#fff;border:1px solid var(--line);border-radius:12px;margin-bottom:12px;box-shadow:0 2px 8px rgba(15,23,42,.03);overflow:hidden;transition:border-color .25s ease,box-shadow .25s ease}
.site-accordion .accordion-item:hover{border-color:#BFD5E4}
.site-accordion .accordion-item.is-active{border-color:#C1D7EA;box-shadow:var(--shadow)}
.site-accordion .accordion-title{padding:1.08rem 1.1rem 1.08rem 3.35rem;background:transparent;border:none;font-size:16px;font-weight:600;color:var(--deep);line-height:1.6;position:relative}
.site-accordion .accordion-title:hover{background:#F8FBFF;color:var(--primary)}
.site-accordion .accordion-title::before{content:"";position:absolute;left:1.1rem;top:50%;width:25px;height:25px;border-radius:7px;background:#FDF0DF;transform:translateY(-50%)}
.site-accordion .accordion-title::after{content:"+";position:absolute;left:1.1rem;top:50%;width:25px;height:25px;display:flex;align-items:center;justify-content:center;font-size:20px;font-weight:500;color:var(--accent);transform:translateY(-50%)}
.site-accordion .accordion-item.is-active .accordion-title::after{content:"−";color:var(--accent)}
.site-accordion .accordion-content{background:#fff;border:none;padding:.85rem 1.35rem 1.25rem 3.35rem;color:#526476;font-size:15px;line-height:1.95}

/* cta */
.cta-section{padding:110px 0;background:linear-gradient(120deg,var(--deep) 0%,#0D3454 100%);position:relative;overflow:hidden}
.cta-section::before{content:"";position:absolute;inset:0;background-image:url('/assets/images/backpic/back-3.webp');background-size:cover;background-position:center;opacity:.13}
.cta-section::after{content:"";position:absolute;width:420px;height:420px;border:1px solid rgba(255,255,255,.09);border-radius:50%;left:-120px;top:-160px}
.cta-inner{position:relative;z-index:2;max-width:800px;margin:0 auto;text-align:center}
.cta-inner h2{color:#fff;font-size:34px;line-height:1.4;font-weight:800}
.cta-inner h2 span{color:#F4C17A}
.cta-inner > p{color:#C6D9E8;font-size:16px;margin:18px auto 30px;max-width:620px}
.cta-form{display:flex;gap:12px;justify-content:center;max-width:560px;margin:0 auto;flex-wrap:wrap}
.cta-form input{height:50px;padding:0 18px;border-radius:8px;border:1px solid rgba(255,255,255,.18);background:rgba(255,255,255,.96);font-size:15px;color:var(--ink);flex:1;min-width:250px;outline:none}
.cta-form input:focus{border-color:#D8A95A;box-shadow:0 0 0 3px rgba(224,138,30,.2)}
.cta-form input::placeholder{color:#94A3B8}
.form-note{font-size:12px;color:#7E9BB2;margin-top:14px}
.cta-links{display:flex;justify-content:center;gap:22px;margin-top:26px;font-size:14px}
.cta-links a{color:#D6E6F2;padding:6px 2px;border-bottom:1px dashed rgba(255,255,255,.35);transition:border-color .2s}
.cta-links a:hover{color:#fff;border-color:#fff}

/* news / cms */
.news-section{background:var(--bg)}
.news-list .post-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow);height:100%;display:flex;flex-direction:column;transition:box-shadow .25s ease,border-color .25s ease}
.news-list .post-card:hover{box-shadow:0 15px 34px rgba(2,32,71,.1);border-color:#C1D5E4;transform:translateY(-2px)}
.post-cover{display:block;height:170px;background-color:#E2EBF3;background-size:cover;background-position:center;position:relative}
.post-card:nth-child(4n+1) .post-cover{background-image:url('/assets/images/coverpic/cover-6.png')}
.post-card:nth-child(4n+2) .post-cover{background-image:url('/assets/images/coverpic/cover-7.png')}
.post-card:nth-child(4n+3) .post-cover{background-image:url('/assets/images/coverpic/cover-8.png')}
.post-card:nth-child(4n) .post-cover{background-image:url('/assets/images/coverpic/cover-9.png')}
.post-cover::after{content:"九游j9网页版资讯";position:absolute;left:14px;bottom:12px;background:rgba(11,43,68,.78);backdrop-filter:blur(4px);color:#F8FAFC;padding:3px 9px;border-radius:6px;font-size:11px;letter-spacing:.02em}
.post-body{padding:20px 18px 22px;display:flex;flex-direction:column;flex:1}
.post-cat{font-size:12px;font-weight:600;color:var(--accent);background:#FDF3E3;padding:4px 10px;border-radius:6px;align-self:flex-start;margin-bottom:12px}
.post-title{font-size:16px;line-height:1.6;font-weight:700;color:var(--deep);margin-bottom:8px}
.post-title a{display:block;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.post-title a:hover{color:var(--primary)}
.post-excerpt{font-size:13px;color:var(--muted);line-height:1.75;margin-bottom:14px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.post-meta{display:flex;align-items:center;justify-content:space-between;margin-top:auto;padding-top:12px;border-top:1px solid #EFF3F8;font-size:12px;color:#919CA9}
.post-more{color:var(--primary);font-weight:600;display:inline-flex;align-items:center;gap:4px}
.post-more:hover{color:var(--accent)}
.news-empty{background:#F4F7FA;border:1px dashed #C4D7E6;border-radius:16px;padding:46px 20px;text-align:center;min-height:140px;display:flex;flex-direction:column;align-items:center;justify-content:center}
.news-empty .empty-ico{width:38px;height:38px;border-radius:50%;border:2px solid var(--primary);color:var(--primary);display:flex;align-items:center;justify-content:center;font-size:22px;margin-bottom:12px}
.news-empty p{color:var(--muted);font-size:15px}
.view-all{font-size:14px;font-weight:600;color:var(--primary);display:inline-flex;align-items:center;gap:6px}
.view-all:hover{color:var(--accent)}

/* footer */
.site-footer{background:#082337;color:#B8C9D8;padding-top:66px;font-size:14px}
.footer-brand .brand-name{color:#fff}
.footer-brand p{color:#8DA6BB;margin:18px 0 0;max-width:340px;font-size:14px;line-height:1.9}
.footer-col h4{color:#fff;font-size:15px;margin-bottom:18px;font-weight:600}
.footer-col ul li{margin-bottom:11px}
.footer-col a{color:#A5BACB;transition:color .2s}
.footer-col a:hover{color:#F4C17A}
.footer-bottom{border-top:1px solid rgba(255,255,255,.1);margin-top:52px;padding:18px 0 20px;display:flex;align-items:center;justify-content:space-between;flex-wrap:wrap;gap:10px}
.footer-bottom p{font-size:13px;color:#849CB0;margin:0}
.footer-bottom a{color:#9EB9CE;transition:color .2s}
.footer-bottom a:hover{color:#fff}

/* responsive */
@media screen and (max-width:1024px){
  .nav-toggle{display:flex}
  .site-nav{position:absolute;top:74px;left:0;right:0;background:#fff;border-bottom:1px solid var(--line);box-shadow:0 18px 32px rgba(2,32,71,.08);padding:12px 20px 18px;display:none;flex-direction:column;align-items:flex-start;gap:8px}
  .site-nav.is-open{display:flex}
  .nav-list{display:flex;flex-direction:column;width:100%;gap:2px}
  .nav-link{width:100%;padding:13px 14px;border-radius:10px;font-size:15px}
  .header-cta{width:100%;justify-content:center;margin-top:8px}
  .hero{padding:58px 0}
  .hero-copy .hero-tags{flex-wrap:wrap}
  .float-card{left:11px}
  .steps-line{grid-template-columns:1fr;gap:0;max-width:600px;margin:0 auto}
  .steps-line::before{content:none}
  .step-card{display:flex;gap:22px;padding:0 0 26px 0}
  .step-top{flex-direction:column;flex:0 0 78px;gap:11px	margin:0}
  .step-num{width:50px;height:50px}
  .step-line{width:2px;height:50px;flex:0 0 2px;background:linear-gradient(180deg,#C7DDEB,transparent)}
  .showcase-row .columns{margin-bottom:22px}
  .showcase-row .columns:last-child{margin-bottom:0}
  .quote-note{margin-top:36px}
}
@media screen and (max-width:767px){
  .section{padding:64px 0}
  .section-head h2{font-size:26px}
  .hero h1{font-size:29px}
  .hero-visual{margin-top:40px}
  .float-card{left:auto;right:0;top:-26px;bottom:auto}
  .mini-strip{grid-template-columns:1fr}
  .mini-strip div{border-right:0;border-bottom:1px solid var(--line)}
  .mini-strip div:last-child{border-bottom:0}
  .step-card{display:block;padding:0;margin-bottom:26px}
  .step-top{margin-bottom:14px}
  .step-line{width:90px;height:2px;background:linear-gradient(90deg,#C7DDEB,transparent)}
  .side-showcase{flex-direction:column}
  .side-img{flex:0 0 auto;width:100%;height:130px}
  .cta-section{padding:72px 0}
  .cta-inner h2{font-size:26px}
  .cta-form input{min-width:100%}
  .news-list .post-card{margin-bottom:18px}
  .news-list .end-columns{display:none}
  .site-footer{padding-top:46px}
  .footer-col{margin-bottom:30px}
  .footer-bottom{flex-direction:column;align-items:flex-start}
}
@media screen and (max-width:520px){
  .container{padding:0 16px}
  .brand-name{font-size:18px}
  .hero h1{font-size:26px}
  .btn{width:100%;padding:0 16px}
  .hero-actions .btn{margin-bottom:0}
  .hero-tags li{flex:1 1 auto;justify-content:center;padding:8px 10px;font-size:12px}
  .cta-form .btn{width:100%}
  .quote-note p{font-size:14px}
}

/* roulang page: category1 */
:root {
  --primary: #146B9E;
  --primary-strong: #0F5A85;
  --primary-light: #EAF3FB;
  --primary-dark: #0B2B44;
  --accent: #E08A1E;
  --accent-soft: #FFF4E5;
  --bg-light: #F8FAFC;
  --text-main: #1F2937;
  --text-muted: #64748B;
  --border-main: #EDF2F7;
  --border-strong: #DCE5F0;
  --shadow-sm: 0 1px 2px rgba(15, 23, 42, 0.04);
  --shadow-md: 0 4px 12px rgba(15, 23, 42, 0.06);
  --shadow-lg: 0 12px 24px rgba(2, 32, 71, 0.08);
  --radius-sm: 6px;
  --radius: 8px;
  --radius-lg: 16px;
  --radius-xl: 24px;
  --font-sans: system-ui, -apple-system, "Segoe UI", Roboto, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
}
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.75;
  color: var(--text-main);
  background: #FFFFFF;
}
h1, h2, h3, h4, p, figure, ul, ol { margin: 0; padding: 0; }
ul, ol { list-style: none; }
img { max-width: 100%; height: auto; display: block; }
a { color: var(--primary); text-decoration: none; transition: color .2s ease, background .2s ease, box-shadow .2s ease, border-color .2s ease; }
a:hover { color: var(--primary-strong); }
button { font-family: inherit; cursor: pointer; }
input, textarea { font-family: inherit; }
section, header, footer, nav { scroll-margin-top: 88px; }

.grid-container {
  max-width: 1200px;
  padding-left: 20px;
  padding-right: 20px;
}
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
}
.section { padding: 88px 0; }
.section-soft { background: var(--bg-light); }
.section-white { background: #FFFFFF; }
.section-head { max-width: 820px; margin-bottom: 44px; }
.section-head.center { margin-left: auto; margin-right: auto; text-align: center; }
.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 5px 14px;
  border-radius: 999px;
  background: var(--accent-soft);
  color: var(--accent);
  font-size: 14px;
  font-weight: 600;
  letter-spacing: .4px;
  margin-bottom: 16px;
}
.section-title { font-size: 34px; line-height: 1.3; font-weight: 700; color: var(--primary-dark); letter-spacing: .5px; }
.section-sub { margin-top: 14px; font-size: 16px; color: var(--text-muted); }
.section-divider { width: 44px; height: 4px; border-radius: 4px; background: linear-gradient(90deg, var(--primary), var(--accent)); margin: 18px 0 0; }
.center .section-divider { margin-left: auto; margin-right: auto; }

.btn-primary,
.btn-ghost,
.btn-outline-light,
.btn-outline-primary,
.btn-light {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  height: 46px;
  padding: 0 24px;
  border-radius: var(--radius);
  font-size: 15px;
  font-weight: 600;
  line-height: 1;
  gap: 8px;
  border: 1px solid transparent;
  transition: all .22s ease;
}
.btn-primary { background: linear-gradient(135deg, var(--primary), #287BB6); color: #FFFFFF; box-shadow: 0 6px 16px rgba(20, 107, 158, .22); }
.btn-primary:hover { color: #fff; background: linear-gradient(135deg, #125F8A, #1E6F9E); box-shadow: 0 10px 22px rgba(20, 107, 158, .28); transform: translateY(-1px); }
.btn-ghost { background: #FFFFFF; border-color: var(--border-strong); color: var(--primary-dark); }
.btn-ghost:hover { border-color: var(--primary); color: var(--primary); background: var(--primary-light); }
.btn-outline-light { background: rgba(255, 255, 255, .04); border-color: rgba(255, 255, 255, .55); color: #FFFFFF; }
.btn-outline-light:hover { background: rgba(255, 255, 255, .12); border-color: #FFFFFF; color: #FFFFFF; }
.btn-light { background: #FFFFFF; color: var(--primary-dark); }
.btn-light:hover { background: var(--primary-light); color: var(--primary-dark); }

.site-header {
  position: sticky;
  top: 0;
  z-index: 120;
  background: rgba(255, 255, 255, .96);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  border-bottom: 1px solid rgba(220, 229, 240, .8);
  box-shadow: 0 2px 12px rgba(2, 32, 71, .04);
}
.header-inner {
  height: 68px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
}
.brand { display: inline-flex; align-items: center; gap: 10px; flex-shrink: 0; }
.brand-mark {
  width: 40px;
  height: 40px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, var(--primary), var(--primary-dark));
  border-radius: 11px;
  box-shadow: 0 4px 10px rgba(20, 107, 158, .24);
}
.brand-mark svg { width: 22px; height: 22px; }
.brand-name { font-size: 22px; font-weight: 800; color: var(--primary-dark); letter-spacing: .3px; }
.brand-name span { color: var(--primary); }
.site-nav { display: flex; align-items: center; gap: 6px; min-width: 0; }
.nav-list { display: flex; align-items: center; gap: 4px; margin: 0; padding: 0; }
.nav-link {
  display: inline-block;
  padding: 9px 13px;
  border-radius: 8px;
  color: var(--text-main);
  font-size: 15px;
  font-weight: 500;
  white-space: nowrap;
  border: 1px solid transparent;
}
.nav-link:hover { color: var(--primary); background: #F2F8FD; }
.nav-link.active { color: var(--primary); background: var(--primary-light); font-weight: 700; }
.header-cta {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  height: 40px;
  padding: 0 18px;
  margin-left: 12px;
  background: linear-gradient(135deg, var(--primary), #287BB6);
  border-radius: 999px;
  color: #FFFFFF;
  font-size: 14px;
  font-weight: 600;
  white-space: nowrap;
  box-shadow: 0 4px 12px rgba(20, 107, 158, .18);
}
.header-cta:hover { color: #fff; box-shadow: 0 6px 16px rgba(20, 107, 158, .28); transform: translateY(-1px); }
.nav-toggle {
  display: none;
  width: 44px;
  height: 44px;
  background: transparent;
  border: 1px solid var(--border-strong);
  border-radius: 10px;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  gap: 5px;
}
.nav-toggle span { width: 20px; height: 2px; background: var(--primary-dark); border-radius: 4px; transition: all .3s ease; display: block; }
.nav-toggle.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-toggle.open span:nth-child(2) { opacity: 0; }
.nav-toggle.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

.breadcrumb-bar { background: var(--bg-light); border-bottom: 1px solid var(--border-main); padding: 13px 0; }
.breadcrumb-inner { display: flex; align-items: center; flex-wrap: wrap; gap: 8px; font-size: 14px; color: var(--text-muted); }
.breadcrumb-inner a { color: var(--text-muted); }
.breadcrumb-inner a:hover { color: var(--primary); }
.breadcrumb-sep { color: var(--border-strong); }
.breadcrumb-current { color: var(--primary-dark); font-weight: 600; }

.hash-anchor { display: block; position: relative; top: -80px; visibility: hidden; pointer-events: none; }

.page-hero {
  position: relative;
  overflow: hidden;
  padding: 78px 0 80px;
  background: linear-gradient(135deg, #EAF3FB 0%, #FFFFFF 52%, #FFF7EC 100%);
}
.guide-hero::before {
  content: "";
  position: absolute;
  right: -80px;
  top: -40px;
  width: 58%;
  height: 100%;
  background: url('/assets/images/backpic/back-2.webp') center center / cover no-repeat;
  opacity: .1;
  border-radius: 32px;
  pointer-events: none;
  transform: rotate(-4deg);
}
.guide-hero .grid-container { position: relative; z-index: 2; }
.hero-copy .eyebrow { margin-bottom: 18px; }
.hero-title { font-size: 42px; line-height: 1.28; color: var(--primary-dark); font-weight: 800; letter-spacing: .4px; }
.hero-title span.accent { color: var(--primary); }
.hero-sub { max-width: 500px; margin-top: 20px; font-size: 16px; color: var(--text-muted); line-height: 1.85; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 14px; margin-top: 32px; }
.hero-tags { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 28px; }
.hero-tag {
  background: #FFFFFF;
  border: 1px solid var(--border-main);
  box-shadow: var(--shadow-sm);
  color: var(--text-muted);
  font-size: 14px;
  border-radius: 999px;
  padding: 7px 15px;
  display: inline-flex;
  align-items: center;
  gap: 7px;
}
.hero-tag i {
  width: 7px; height: 7px; display: inline-block;
  background: var(--primary); border-radius: 50%;
}
.hero-media { padding-top: 12px; }
.hero-img-card {
  background: #FFFFFF;
  border: 1px solid var(--border-main);
  border-radius: 20px;
  padding: 16px;
  box-shadow: var(--shadow-lg);
  transform: rotate(1deg);
}
.hero-img-card img { border-radius: 14px; width: 100%; aspect-ratio: 4 / 3; object-fit: cover; }
.hero-img-meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  padding: 14px 10px 4px;
  font-size: 13px;
  color: var(--text-muted);
}
.hero-img-meta b { color: var(--primary); font-size: 14px; }

.stat-strip { background: linear-gradient(120deg, #0B2B44, #123F61); color: #fff; padding: 26px 0; }
.stat-item { text-align: center; padding: 20px 12px; position: relative; }
.stat-item + .stat-item::before {
  content: "";
  width: 1px;
  height: 46px;
  background: rgba(255, 255, 255, .16);
  position: absolute;
  left: 0;
  top: 50%;
  transform: translateY(-50%);
}
.stat-num { font-size: 36px; line-height: 1.1; font-weight: 800; color: #fff; }
.stat-sub { font-size: 13px; color: rgba(255, 255, 255, .7); margin-top: 8px; letter-spacing: .3px; }
.stat-num small { font-size: 20px; font-weight: 700; color: var(--accent); margin-left: 2px; }

.step-section { background: #F8FAFC; background-image: radial-gradient(circle at 90% 10%, rgba(20, 107, 158, .06), transparent 26%); }
.timeline { position: relative; max-width: 960px; margin: 30px auto 0; padding: 6px 0 20px; }
.timeline::before { content: ""; position: absolute; left: 50%; top: 18px; bottom: 10px; width: 2px; background: linear-gradient(180deg, var(--primary), rgba(20, 107, 158, .12)); border-radius: 4px; transform: translateX(-50%); }
.timeline-item { position: relative; width: 50%; padding: 0 56px 38px 0; display: flex; justify-content: flex-end; }
.timeline-item:nth-child(even) { margin-left: 50%; padding: 0 0 38px 56px; justify-content: flex-start; }
.timeline-item::after {
  content: "";
  position: absolute;
  right: -9px;
  top: 28px;
  width: 18px;
  height: 18px;
  background: var(--primary);
  border: 4px solid var(--primary-light);
  border-radius: 50%;
  z-index: 2;
  box-shadow: 0 0 0 4px rgba(20, 107, 158, .08);
}
.timeline-item:nth-child(even)::after { right: auto; left: -9px; }
.step-card {
  width: 100%;
  background: #FFFFFF;
  border: 1px solid var(--border-main);
  border-radius: 16px;
  box-shadow: var(--shadow-sm);
  padding: 26px 26px 24px;
  position: relative;
}
.step-card:hover { box-shadow: var(--shadow-md); }
.step-kicker { display: inline-flex; align-items: center; gap: 6px; font-size: 13px; font-weight: 700; color: var(--accent); letter-spacing: 1px; margin-bottom: 10px; }
.step-kicker::before { content: ""; width: 26px; height: 2px; background: var(--accent); border-radius: 4px; display: inline-block; }
.step-card h3 { font-size: 21px; color: var(--primary-dark); font-weight: 700; margin: 6px 0 12px; }
.step-card p { font-size: 15px; color: var(--text-muted); line-height: 1.8; }
.step-tip { background: var(--primary-light); color: var(--primary-strong); display: inline-flex; align-items: center; gap: 6px; border-radius: 999px; padding: 6px 12px; font-size: 13px; margin-top: 16px; }

.tab-block { margin-top: 48px; }
.tab-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 9px;
  background: #EDF4FA;
  border-radius: 16px;
  padding: 6px;
  max-width: 900px;
  margin: 0 auto;
}
.tab-link {
  flex: 1 1 auto;
  min-width: 160px;
  border: 0;
  background: transparent;
  padding: 12px 18px;
  border-radius: 12px;
  font-size: 15px;
  font-weight: 600;
  color: var(--text-muted);
  transition: all .2s ease;
}
.tab-link:hover { color: var(--primary); background: rgba(255, 255, 255, .6); }
.tab-link.is-active { background: #FFFFFF; color: var(--primary); box-shadow: var(--shadow-md); }
.tab-panel { display: none; margin-top: 26px; background: #FFFFFF; border: 1px solid var(--border-main); border-radius: 20px; box-shadow: var(--shadow-md); padding: 34px; }
.tab-panel.is-active { display: block; }
.panel-layout { display: grid; grid-template-columns: 1.05fr .95fr; gap: 34px; align-items: center; }
.panel-title { font-size: 24px; font-weight: 700; color: var(--primary-dark); margin-bottom: 14px; }
.panel-lead { color: var(--text-muted); margin-bottom: 22px; font-size: 15px; }
.check-list li { position: relative; padding-left: 28px; margin-bottom: 16px; color: var(--text-main); line-height: 1.75; font-size: 15px; }
.check-list li::before {
  content: "✓";
  position: absolute;
  left: 0;
  top: 1px;
  width: 19px;
  height: 19px;
  background: var(--primary-light);
  color: var(--primary);
  border-radius: 50%;
  font-size: 12px;
  font-weight: 700;
  display: inline-flex;
  align-items: center;
  justify-content: center;
}
.panel-media img { width: 100%; aspect-ratio: 4 / 3; object-fit: cover; border-radius: 16px; box-shadow: var(--shadow-md); }

.prep-wrap { margin-top: 40px; }
.prep-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.prep-card {
  background: #FFFFFF;
  border: 1px solid var(--border-main);
  border-radius: 14px;
  padding: 22px;
  box-shadow: var(--shadow-sm);
  display: flex;
  gap: 14px;
}
.prep-icon {
  width: 46px;
  height: 46px;
  border-radius: 12px;
  background: var(--accent-soft);
  color: var(--accent);
  font-size: 20px;
  font-weight: 800;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}
.prep-card h3 { font-size: 17px; font-weight: 700; color: var(--primary-dark); margin-bottom: 6px; }
.prep-card p { font-size: 14px; color: var(--text-muted); line-height: 1.7; }
.prep-image-card img { width: 100%; border-radius: 18px; box-shadow: var(--shadow-md); margin-top: 14px; object-fit: cover; }

.faq-section { background: linear-gradient(180deg, #FFFFFF 0%, #F2F7FC 100%); }
.faq-wrap { max-width: 880px; margin: 0 auto; }
.faq-list.accordion { margin: 0; list-style: none; }
.faq-list .accordion-item { margin-bottom: 14px; border-radius: 14px; list-style: none; overflow: hidden; }
.faq-list .accordion-title {
  display: flex;
  align-items: center;
  gap: 12px;
  background: #FFFFFF;
  border: 1px solid var(--border-main);
  border-radius: 14px;
  box-shadow: var(--shadow-sm);
  padding: 18px 58px 18px 18px;
  font-size: 17px;
  font-weight: 600;
  color: var(--primary-dark);
  line-height: 1.45;
  position: relative;
  margin: 0;
}
.faq-list .accordion-title:hover { border-color: var(--primary); box-shadow: var(--shadow-md); }
.faq-list .accordion-title:focus { outline: 2px solid var(--primary); outline-offset: 2px; }
.faq-qicon {
  width: 30px;
  height: 30px;
  border-radius: 9px;
  background: var(--accent-soft);
  color: var(--accent);
  font-size: 14px;
  font-weight: 800;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}
.faq-list .accordion-title::after {
  content: "+";
  position: absolute;
  right: 18px;
  top: 50%;
  transform: translateY(-50%);
  width: 26px;
  height: 26px;
  border-radius: 50%;
  background: var(--primary-light);
  color: var(--primary);
  font-size: 20px;
  font-weight: 500;
  line-height: 24px;
  text-align: center;
}
.faq-list .accordion-item.is-active .accordion-title::after { content: "−"; background: var(--primary); color: #fff; }
.faq-list .accordion-content {
  background: #FFFFFF;
  border: 1px solid var(--border-main);
  border-top: 0;
  border-radius: 0 0 14px 14px;
  padding: 4px 22px 22px;
  color: var(--text-muted);
  font-size: 15px;
  line-height: 1.85;
}
.faq-list .accordion-content p { margin-bottom: 14px; }
.faq-list .accordion-content p:last-child { margin-bottom: 0; }

.cta-section { padding: 80px 0; background: var(--bg-light); }
.cta-inner {
  position: relative;
  padding: 66px 40px;
  background: linear-gradient(120deg, #0B2B44 0%, #123F61 100%);
  border-radius: 28px;
  overflow: hidden;
  text-align: center;
  color: #fff;
  box-shadow: var(--shadow-lg);
}
.cta-inner::before {
  content: "";
  position: absolute;
  inset: 0;
  background: url('/assets/images/backpic/back-3.webp') right bottom / cover no-repeat;
  opacity: .14;
  pointer-events: none;
}
.cta-inner .cta-content { position: relative; z-index: 2; }
.cta-inner h2 { font-size: 32px; font-weight: 800; color: #fff; }
.cta-inner p { color: rgba(255, 255, 255, .78); max-width: 640px; margin: 16px auto 28px; font-size: 16px; }
.cta-actions { display: flex; flex-wrap: wrap; justify-content: center; gap: 14px; }

.site-footer {
  background: var(--primary-dark);
  background-image: radial-gradient(circle at 15% 20%, rgba(20, 107, 158, .4), transparent 35%);
  color: #fff;
  padding: 60px 0 26px;
}
.site-footer .brand { margin-bottom: 18px; }
.site-footer .brand-name { color: #FFFFFF; }
.site-footer .brand-name span { color: #E08A1E; }
.footer-brand p { color: rgba(255, 255, 255, .66); font-size: 14px; line-height: 1.9; margin-top: 16px; max-width: 360px; }
.footer-col { margin-bottom: 24px; }
.footer-col h4 { font-size: 16px; font-weight: 700; margin-bottom: 16px; }
.site-footer ul { list-style: none; margin: 0; padding: 0; }
.site-footer li { margin-bottom: 10px; }
.site-footer li a { color: rgba(255, 255, 255, .68); font-size: 14px; transition: all .2s ease; }
.site-footer li a:hover { color: #FFFFFF; padding-left: 4px; }
.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, .14);
  margin-top: 26px;
  padding-top: 20px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 10px;
  color: rgba(255, 255, 255, .58);
  font-size: 13px;
}

@media (max-width: 1023px) {
  .nav-toggle { display: inline-flex; }
  .site-nav {
    position: absolute;
    top: 68px;
    left: 0;
    right: 0;
    background: #FFFFFF;
    border-bottom: 1px solid var(--border-main);
    box-shadow: 0 16px 28px rgba(2, 32, 71, .08);
    padding: 12px 16px 16px;
    display: none;
    flex-direction: column;
    align-items: stretch;
    max-height: calc(100vh - 68px);
    overflow-y: auto;
  }
  .site-nav.open { display: block; }
  .nav-list { flex-direction: column; align-items: stretch; gap: 4px; }
  .nav-link { display: block; padding: 12px 14px; }
  .header-cta { display: flex; margin: 10px 0 0; justify-content: center; }
}

@media (max-width: 900px) {
  .section { padding: 72px 0; }
  .panel-layout { grid-template-columns: 1fr; }
  .timeline::before { left: 14px; transform: none; }
  .timeline-item,
  .timeline-item:nth-child(even) { width: 100%; margin-left: 0; padding: 0 0 36px 42px; justify-content: flex-start; }
  .timeline-item::after,
  .timeline-item:nth-child(even)::after { left: 6px; right: auto; }
  .prep-grid { grid-template-columns: 1fr; }
}

@media (max-width: 767px) {
  .hero-title { font-size: 32px; }
  .section-title { font-size: 27px; }
  .section-head { margin-bottom: 32px; }
  .page-hero { padding: 54px 0 62px; }
  .timeline::before { left: 10px; }
  .timeline-item,
  .timeline-item:nth-child(even) { padding-left: 38px; }
  .timeline-item::after,
  .timeline-item:nth-child(even)::after { left: 2px; width: 16px; height: 16px; }
  .step-card { padding: 22px 20px; }
  .tab-link { min-width: 100%; }
  .tab-panel { padding: 22px; }
  .cta-inner { padding: 46px 20px; }
  .cta-inner h2 { font-size: 26px; }
  .stat-item + .stat-item::before { display: none; }
}

@media (max-width: 520px) {
  .container { padding: 0 16px; }
  .hero-actions .btn-primary,
  .hero-actions .btn-ghost { width: 100%; }
  .hero-title { font-size: 27px; }
  .step-kicker { font-size: 12px; }
  .step-card h3 { font-size: 19px; }
  .panel-title { font-size: 21px; }
  .faq-list .accordion-title { font-size: 15px; padding-left: 14px; padding-right: 52px; }
  .footer-bottom { flex-direction: column; align-items: flex-start; }
}

/* roulang page: article */
:root{
  --brand:#146B9E;
  --brand-strong:#0F5A85;
  --brand-soft:#EAF3FB;
  --brand-deep:#0B2B44;
  --accent:#E08A1E;
  --accent-deep:#D9654B;
  --body-bg:#F7FAFC;
  --surface:#FFFFFF;
  --text:#1F2937;
  --text-sub:#64748B;
  --border:#EDF2F7;
  --line:#DCE5F0;
  --radius-sm:6px;
  --radius-md:12px;
  --radius-lg:18px;
  --shadow-xs:0 2px 6px rgba(15,23,42,.04);
  --shadow-sm:0 4px 12px rgba(15,23,42,.06);
  --shadow-md:0 10px 24px rgba(2,32,71,.08);
  --shadow-lg:0 20px 44px rgba(2,32,71,.12);
  --transition:.25s ease;
  --font-main:system-ui,-apple-system,"Segoe UI",Roboto,"PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;
}
*,*::before,*::after{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  font-family:var(--font-main);
  font-size:16px;
  line-height:1.75;
  color:var(--text);
  background:var(--body-bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;height:auto;display:block;}
a{color:var(--brand);text-decoration:none;transition:color .2s ease;}
a:hover{color:var(--brand-strong);}
button{font-family:inherit;cursor:pointer;border:none;background:none;}
ul,ol{list-style:none;padding:0;margin:0;}
.container{max-width:1200px;margin:0 auto;padding:0 24px;}
.row{max-width:1200px;margin:0 auto;}
.skip-link{
  position:absolute;left:-999px;top:0;z-index:200;
  background:var(--brand-deep);color:#fff;padding:10px 16px;border-radius:0 0 8px 0;
}
.skip-link:focus{left:0;color:#fff;}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:44px;padding:0 24px;border-radius:var(--radius-sm);
  font-size:15px;font-weight:600;line-height:1;transition:all .25s ease;
}
.btn-primary{background:var(--brand);color:#fff;border:1px solid var(--brand);box-shadow:0 6px 16px rgba(20,107,158,.22);}
.btn-primary:hover{background:var(--brand-strong);color:#fff;box-shadow:0 10px 22px rgba(20,107,158,.28);transform:translateY(-2px);}
.btn-outline{background:#fff;color:var(--brand-deep);border:1px solid var(--line);}
.btn-outline:hover{border-color:var(--brand);color:var(--brand);background:var(--brand-soft);}
.read-progress{
  position:fixed;top:0;left:0;height:3px;width:0;
  background:linear-gradient(90deg,var(--brand),var(--accent));
  z-index:120;transition:width .08s linear;
}
/* ===== Header ===== */
.site-header{
  position:sticky;top:0;z-index:100;
  background:rgba(255,255,255,.96);
  backdrop-filter:blur(12px);
  border-bottom:1px solid var(--line);
  box-shadow:0 2px 18px rgba(15,23,42,.04);
}
.header-inner{
  display:flex;align-items:center;justify-content:space-between;
  min-height:72px;gap:16px;position:relative;
}
.brand{
  display:inline-flex;align-items:center;gap:10px;flex-shrink:0;
  text-decoration:none;
}
.brand-mark{
  display:inline-flex;align-items:center;justify-content:center;
  width:38px;height:38px;border-radius:10px;
  background:linear-gradient(135deg,#146B9E,#287BB6);
  box-shadow:0 6px 16px rgba(20,107,158,.2);
  flex:0 0 auto;
}
.brand-mark svg{width:22px;height:22px;}
.brand-name{
  font-size:21px;font-weight:700;letter-spacing:.3px;
  color:var(--brand-deep);line-height:1.15;
}
.site-header .brand-name span{color:var(--accent);}
.brand:hover .brand-name{opacity:.9;}
.site-nav{display:flex;align-items:center;gap:24px;}
.nav-list{display:flex;align-items:center;gap:4px;}
.nav-link{
  display:block;padding:9px 15px;border-radius:8px;
  font-size:15px;font-weight:500;color:var(--text);
  transition:all .22s ease;line-height:1.4;
}
.nav-link:hover{color:var(--brand);background:var(--brand-soft);}
.nav-link.active{color:var(--brand);background:var(--brand-soft);font-weight:600;}
.header-cta{
  display:inline-flex;align-items:center;justify-content:center;
  min-height:40px;padding:0 20px;border-radius:8px;
  background:var(--brand-deep);color:#fff;font-size:14px;font-weight:600;
  box-shadow:0 4px 12px rgba(11,43,68,.18);transition:all .22s ease;white-space:nowrap;
}
.header-cta:hover{background:var(--brand);color:#fff;transform:translateY(-2px);}
.nav-toggle{display:none;width:42px;height:42px;border-radius:10px;flex-direction:column;align-items:center;justify-content:center;gap:5px;background:var(--brand-soft);}
.nav-toggle span{display:block;width:20px;height:2px;border-radius:2px;background:var(--brand-deep);transition:all .25s ease;}
.nav-toggle.open span:nth-child(1){transform:translateY(7px) rotate(45deg);}
.nav-toggle.open span:nth-child(2){opacity:0;transform:scaleX(.4);}
.nav-toggle.open span:nth-child(3){transform:translateY(-7px) rotate(-45deg);}
a:focus-visible,button:focus-visible,.nav-toggle:focus-visible{
  outline:3px solid rgba(20,107,158,.35);outline-offset:2px;border-radius:6px;
}
/* ===== Breadcrumb ===== */
.breadcrumb-bar{
  background:var(--surface);
  border-bottom:1px solid var(--border);
  padding:16px 0;
}
.breadcrumb{display:flex;align-items:center;flex-wrap:wrap;font-size:14px;color:var(--text-sub);line-height:1.4;}
.breadcrumb li{display:inline-flex;align-items:center;max-width:100%;}
.breadcrumb a{color:var(--text-sub);transition:color .2s;}
.breadcrumb a:hover{color:var(--brand);}
.breadcrumb li+li::before{content:"/";margin:0 10px;color:#B9C7D6;}
.breadcrumb li:last-of-type{color:var(--text);font-weight:500;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;max-width:300px;display:inline-block;}
/* ===== Article ===== */
.page-main{padding:36px 0 72px;min-height:60vh;}
.article-canvas .container{max-width:1040px;}
.article-card{
  background:var(--surface);
  border:1px solid var(--border);
  border-radius:var(--radius-lg);
  box-shadow:var(--shadow-sm);
  padding:48px 60px 40px;
}
.article-head{padding-bottom:30px;border-bottom:1px solid var(--line);margin-bottom:36px;}
.article-cat{
  display:inline-flex;align-items:center;
  min-height:28px;padding:0 12px;border-radius:999px;
  background:var(--brand-soft);color:var(--brand);
  font-size:13px;font-weight:600;margin-bottom:18px;
}
.article-head h1{
  font-size:36px;line-height:1.4;font-weight:800;
  color:var(--brand-deep);margin:0 0 22px;letter-spacing:.2px;
}
.article-meta{
  display:flex;flex-wrap:wrap;gap:14px 30px;align-items:center;
  color:var(--text-sub);font-size:14px;
}
.meta-item{display:inline-flex;align-items:center;gap:8px;}
.meta-item i{width:16px;color:var(--brand);font-size:15px;}
.meta-source{color:var(--brand);font-weight:600;}
.article-body-cover{overflow:hidden;border-radius:var(--radius-md);margin-bottom:32px;box-shadow:var(--shadow-sm);}
.cms-content{
  font-size:16.5px;line-height:1.85;color:#2D3A4C;
  overflow-wrap:break-word;word-break:break-word;
}
.cms-content p{margin:0 0 24px;}
.cms-content h2,.cms-content h3,.cms-content h4{
  font-weight:700;color:var(--brand-deep);line-height:1.45;
  padding-left:16px;border-left:4px solid var(--accent);
  margin:40px 0 18px;
}
.cms-content h2{font-size:26px;}
.cms-content h3{font-size:21px;border-left-color:var(--brand);}
.cms-content h4{font-size:18px;border-left-color:var(--brand-strong);}
.cms-content a{color:var(--brand);border-bottom:1px solid rgba(20,107,158,.3);}
.cms-content a:hover{border-bottom-color:var(--brand);}
.cms-content ul,.cms-content ol{margin:0 0 26px;padding-left:26px;}
.cms-content ul{list-style:disc;}
.cms-content ol{list-style:decimal;}
.cms-content li{margin-bottom:8px;line-height:1.9;}
.cms-content img{border-radius:12px;border:1px solid var(--border);box-shadow:var(--shadow-sm);margin:28px auto;}
.cms-content blockquote{
  margin:30px 0;padding:20px 24px;background:var(--brand-soft);
  border-radius:8px 16px 16px 8px;border-left:4px solid var(--brand);
  color:#31485C;line-height:1.8;
}
.cms-content blockquote p:last-child{margin-bottom:0;}
.cms-content table{width:100%;border-collapse:collapse;margin:28px 0;font-size:15px;}
.cms-content th,.cms-content td{border:1px solid var(--line);padding:11px 14px;text-align:left;}
.cms-content th{background:#F0F6FC;font-weight:700;color:var(--brand-deep);}
.cms-content tr:nth-child(even) td{background:#FAFCFE;}
.cms-content pre{
  background:#0B2B44;color:#D9E8F5;padding:20px 24px;border-radius:12px;
  overflow-x:auto;font-size:14px;line-height:1.7;margin:28px 0;
}
.cms-content code{font-family:ui-monospace,SFMono-Regular,Consolas,monospace;}
.cms-content p code{background:#EAF3FB;color:var(--brand-strong);border-radius:4px;padding:2px 6px;font-size:.9em;}
.cms-content iframe{max-width:100%;border-radius:12px;}
.article-foot{
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:18px;
  margin-top:42px;padding-top:26px;border-top:1px solid var(--line);
}
.article-tags{display:flex;flex-wrap:wrap;gap:8px;}
.article-tags span{
  display:inline-flex;align-items:center;min-height:28px;padding:0 14px;border-radius:999px;
  background:var(--body-bg);border:1px solid var(--border);
  color:var(--text-sub);font-size:13px;
}
.article-back a{
  display:inline-flex;align-items:center;gap:8px;font-size:14px;font-weight:600;
  color:var(--brand);transition:gap .2s;
}
.article-back a:hover{gap:12px;color:var(--brand-strong);}
/* ===== Related ===== */
.related-section{background:var(--surface);border-top:1px solid var(--border);padding:64px 0 72px;margin-top:20px;}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;margin-bottom:32px;}
.section-kicker{display:block;font-size:14px;font-weight:600;color:var(--accent);margin-bottom:6px;text-transform:uppercase;letter-spacing:.5px;}
.section-head h2{font-size:30px;font-weight:800;color:var(--brand-deep);margin:0;line-height:1.4;}
.text-link{font-size:14px;font-weight:600;color:var(--brand);transition:color .2s;}
.text-link:hover{color:var(--brand-strong);}
.related-row{display:flex;flex-wrap:wrap;}
.related-row .columns{display:flex;align-items:stretch;}
.related-card{
  display:flex;flex-direction:column;width:100%;background:var(--surface);
  border:1px solid var(--border);border-radius:var(--radius-md);
  box-shadow:var(--shadow-xs);overflow:hidden;transition:box-shadow .28s ease,transform .24s ease,border-color .24s ease;
}
.related-card:hover{border-color:#CDE2F5;box-shadow:var(--shadow-md);transform:translateY(-5px);color:inherit;}
.related-cover{position:relative;aspect-ratio:16/10;background:#DCE9F3;overflow:hidden;}
.related-cover img{width:100%;height:100%;object-fit:cover;transition:transform .5s ease;}
.related-card:hover .related-cover img{transform:scale(1.04);}
.related-cover .cover-tag{
  position:absolute;left:14px;top:14px;z-index:2;background:rgba(11,43,68,.72);
  color:#fff;font-size:12px;font-weight:600;padding:4px 10px;border-radius:999px;
  backdrop-filter:blur(8px);
}
.related-body{flex:1;display:flex;flex-direction:column;padding:22px 22px 20px;}
.related-body h3{font-size:19px;font-weight:700;color:var(--brand-deep);line-height:1.5;margin:0 0 8px;}
.related-body p{font-size:14px;line-height:1.75;color:var(--text-sub);margin:0 0 18px;flex:1;}
.related-more{font-size:14px;font-weight:700;color:var(--brand);display:inline-flex;align-items:center;gap:7px;}
.related-more i{font-size:12px;transition:transform .2s;}
.related-card:hover .related-more{gap:11px;color:var(--brand-strong);}
/* ===== Not Found ===== */
.notfound-wrap{max-width:720px;margin:24px auto;text-align:center;}
.notfound-card{background:#fff;border:1px solid var(--border);border-radius:var(--radius-lg);box-shadow:var(--shadow-sm);padding:64px 40px;}
.notfound-icon{
  width:78px;height:78px;margin:0 auto 24px;display:inline-flex;align-items:center;justify-content:center;
  background:var(--brand-soft);border-radius:24px;color:var(--brand);font-size:34px;
}
.notfound-card h1{font-size:32px;color:var(--brand-deep);margin:0 0 12px;font-weight:800;}
.notfound-card p{color:var(--text-sub);margin:0 0 28px;font-size:16px;}
/* ===== Footer ===== */
.site-footer{
  background:var(--brand-deep);color:rgba(255,255,255,.82);
  padding:64px 0 0;overflow:hidden;position:relative;
}
.site-footer::before{
  content:"";display:block;height:3px;width:100%;
  background:linear-gradient(90deg,var(--brand),var(--accent));
}
.site-footer .container{position:relative;z-index:2;}
.site-footer .row{max-width:1200px;margin:0 auto;}
.site-footer .footer-col{padding:0 22px 36px;}
.footer-brand .brand{margin-bottom:6px;}
.site-footer .brand-mark{background:rgba(255,255,255,.12);box-shadow:none;border:1px solid rgba(255,255,255,.2);}
.site-footer .brand-name{color:#fff;}
.site-footer .brand-name span{color:var(--accent);}
.site-footer .brand:hover .brand-name{opacity:.92;}
.site-footer p{font-size:14px;line-height:1.9;color:rgba(255,255,255,.65);margin-top:14px;}
.footer-col h4{color:#fff;font-size:16px;font-weight:700;margin:16px 0 16px;padding-bottom:10px;position:relative;}
.footer-col h4::after{content:"";display:block;width:28px;height:3px;border-radius:2px;background:var(--accent);margin-top:10px;}
.footer-col ul{display:flex;flex-direction:column;gap:2px;}
.footer-col ul a{
  display:inline-block;color:rgba(255,255,255,.66);font-size:14px;
  padding:5px 0;line-height:1.5;transition:all .2s;
}
.footer-col ul a:hover{color:#fff;padding-left:6px;}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.12);padding:22px 0;
  display:flex;flex-wrap:wrap;justify-content:space-between;gap:6px;
  font-size:13px;color:rgba(255,255,255,.55);
}
.footer-bottom p{margin:0;font-size:13px;}
/* ===== Responsive ===== */
@media screen and (max-width: 900px){
  .nav-toggle{display:flex;}
  .site-nav{
    position:absolute;top:calc(100% + 1px);left:-24px;right:-24px;
    display:none;flex-direction:column;align-items:stretch;
    background:#fff;padding:16px 24px 24px;
    border-bottom:1px solid var(--border);
    box-shadow:0 24px 40px rgba(2,32,71,.14);
  }
  .site-nav.open{display:flex;}
  .nav-list{flex-direction:column;gap:2px;margin-bottom:14px;}
  .nav-link{padding:13px 12px;font-size:16px;border-radius:10px;}
  .header-cta{width:100%;min-height:46px;justify-content:center;}
}
@media screen and (max-width: 767px){
  body{font-size:15px;}
  .header-inner{min-height:66px;}
  .brand-name{font-size:19px;}
  .breadcrumb li:last-of-type{max-width:170px;}
  .page-main{padding:20px 0 52px;}
  .article-card{padding:28px 20px 24px;border-radius:16px;}
  .article-head{padding-bottom:20px;margin-bottom:26px;}
  .article-head h1{font-size:27px;line-height:1.45;margin-bottom:18px;}
  .article-meta{gap:12px 16px;font-size:13px;}
  .cms-content{font-size:16px;line-height:1.9;}
  .cms-content h2{font-size:22px;}
  .cms-content h3{font-size:19px;}
  .cms-content pre{padding:16px;}
  .cms-content table{font-size:14px;display:block;overflow-x:auto;}
  .article-foot{flex-direction:column;align-items:flex-start;}
  .article-back{width:100%;}
  .related-section{padding:44px 0 50px;}
  .section-head h2{font-size:24px;}
  .related-body h3{font-size:18px;}
  .footer-bottom{flex-direction:column;gap:2px;font-size:12px;}
}
@media screen and (max-width: 520px){
  .container{padding:0 18px;}
  .site-nav{left:-18px;right:-18px;}
  .breadcrumb{font-size:13px;}
  .breadcrumb li:last-of-type{max-width:120px;}
  .article-card{padding:22px 16px 18px;}
  .article-head h1{font-size:24px;}
  .section-head{align-items:flex-start;flex-direction:column;gap:10px;}
  .notfound-card{padding:44px 20px;}
}

/* roulang page: category2 */
:root{
  --primary:#146B9E;
  --primary-deep:#0B2B44;
  --primary-light:#EAF3FB;
  --primary-soft:hover...
  --primary-02:#287BB6;
  --accent:#E08A1E;
  --accent-light:#FCEEDB;
  --text:#1F2937;
  --muted:#64748B;
  --bg-soft:#F8FAFC;
  --border:#DCE5F0;
  --white:#FFFFFF;
  --radius-md:8px;
  --radius-lg:14px;
  --shadow-card:0 4px 14px rgba(15,23,42,.06);
  --shadow-card-hover:0 12px 26px rgba(2,32,71,.1);
  --font-main:system-ui,-apple-system,"Segoe UI",Roboto,"PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;
  --ease:all .22s ease;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  font-family:var(--font-main);
  background:var(--white);
  color:var(--text);
  font-size:16px;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{color:var(--primary);text-decoration:none;transition:var(--ease)}
a:hover{color:var(--primary-deep)}
p{margin:0 0 1.1rem}
ul,ol{margin:0;padding:0}
button{font-family:inherit;cursor:pointer;border:none;background:none}
input{font-family:inherit}
.container{max-width:1200px;margin:0 auto;padding:0 24px;width:100%}
.container-narrow{max-width:980px;margin:0 auto;padding:0 28px}

/* Buttons */
.btn{
  display:inline-flex;align-items:center;justify-content:center;
  min-height:44px;padding:0 24px;border-radius:6px;
  font-weight:600;font-size:15px;line-height:1;gap:9px;
  transition:all .22s ease;
}
.btn svg,.btn i{font-size:15px}
.btn-primary{
  background:linear-gradient(120deg,var(--primary) 0%,var(--primary-02) 100%);
  color:#fff;border:1px solid transparent;
  box-shadow:0 6px 14px rgba(20,107,158,.22);
}
.btn-primary:hover{
  background:var(--primary-deep);color:#fff;transform:translateY(-1px);
  box-shadow:0 10px 22px rgba(20,107,158,.28);
}
.btn-secondary{
  background:#fff;color:var(--primary-deep);
  border:1px solid var(--border);
}
.btn-secondary:hover{border-color:var(--primary);background:var(--primary-light);transform:translateY(-1px)}
.btn-accent{
  background:var(--accent);color:#fff;
}
.btn-accent:hover{background:#c97510;color:#fff}
.btn-ghost{
  background:transparent;color:#fff;border:1px solid rgba(255,255,255,.55);
}
.btn-ghost:hover{background:rgba(255,255,255,.12);border-color:#fff;color:#fff}
.btn-sm{min-height:36px;padding:0 16px;font-size:14px}
@media(max-width:520px){
  .btn{width:100%;max-width:320px;margin:0 auto}
}

/* ===== Header ===== */
.site-header{
  position:sticky;top:0;z-index:80;
  background:rgba(255,255,255,.94);
  backdrop-filter:saturate(150%) blur(12px);
  border-bottom:1px solid var(--border);
}
.header-inner{
  display:flex;align-items:center;min-height:68px;gap:18px;
  flex-wrap:wrap;padding-top:8px;padding-bottom:8px;
}
.brand{
  display:inline-flex;align-items:center;gap:10px;
  font-size:22px;font-weight:800;letter-spacing:.5px;color:var(--primary-deep);
  flex:0 0 auto;
}
.brand:hover{color:var(--primary-deep)}
.brand-mark{
  width:34px;height:34px;border-radius:9px;display:inline-flex;
  align-items:center;justify-content:center;
  background:linear-gradient(135deg,#0B2B44 0%,#146B9E 100%);
}
.brand-mark svg{width:21px;height:21px}
.brand-name span{color:var(--primary)}
.brand-name span:last-child{color:var(--accent)}
.site-nav{
  display:flex;align-items:center;gap:28px;
  margin-left:auto;flex-wrap:wrap;
}
.nav-list{list-style:none;display:flex;align-items:center;gap:6px;margin:0;padding:0;flex-wrap:wrap}
.nav-link{
  display:block;padding:9px 12px;border-radius:8px;
  font-size:15px;font-weight:500;color:#243B53;
  position:relative;transition:all ease .18s;
}
.nav-link::after{
  content:"";position:absolute;left:14px;right:14px;bottom:2px;
  height:2px;border-radius:99px;
  background:var(--accent);
  opacity:0;transform:scaleX(.4);transition:all ease .2s;
}
.nav-link:hover{color:var(--primary);background:var(--primary-light)}
.nav-link.active{color:var(--primary-deep);font-weight:600}
.nav-link.active::after{opacity:1;transform:scaleX(1)}
.header-cta{
  display:inline-flex;align-items:center;justify-content:center;
  min-height:38px;padding:0 18px;background:var(--primary-deep);
  color:#fff;font-size:14px;font-weight:600;border-radius:7px;
  transition:var(--ease);
}
.header-cta:hover{background:var(--primary);color:#fff;transform:translateY(-1px)}
.nav-toggle{
  width:44px;height:44px;border-radius:8px;margin-left:auto;
  display:none;flex-direction:column;align-items:center;justify-content:center;gap:5px;
  background:var(--primary-light);border:1px solid var(--border);
}
.nav-toggle span{width:20px;height:2px;border-radius:6px;background:var(--primary-deep);display:block;transition:var(--ease)}
@media(max-width:1024px){
  .header-inner{position:relative;flex-wrap:nowrap;min-height:64px}
  .brand{font-size:19px}
  .brand-mark{width:32px;height:32px}
  .nav-toggle{display:flex}
  .site-nav{
    position:absolute;top:calc(100% + 1px);left:16px;right:16px;
    z-index:90;display:none;flex-direction:column;gap:10px;
    background:#fff;padding:18px;border-radius:14px;
    border:1px solid var(--border);box-shadow:0 18px 42px rgba(2,32,71,.14);
    margin-left:0;align-items:stretch;
  }
  .site-nav.is-open{display:flex}
  .nav-list{flex-direction:column;align-items:stretch;gap:4px}
  .nav-link::after{display:none}
  .nav-link:hover{background:var(--primary-light)}
  .header-cta{margin:10px 0 0;width:100%;min-height:44px}
}
@media(max-width:520px){
  .brand-name{font-size:18px}
  .container{padding:0 18px}
}

/* Breadcrumb */
.breadcrumb-bar{
  background:#F3F7FB;border-bottom:1px solid #EDF2F7;
}
.breadcrumb-inner{
  min-height:44px;display:flex;align-items:center;gap:9px;
  font-size:14px;flex-wrap:wrap;padding-top:5px;padding-bottom:5px;
}
.breadcrumb-inner a{display:inline-flex;align-items:center;gap:6px;color:#526579;font-weight:500}
.breadcrumb-inner a i{font-size:12px}
.breadcrumb-inner a:hover{color:var(--primary)}
.breadcrumb-inner .current{color:var(--primary);font-weight:600}
.breadcrumb-sep{color:#9AAEBB}

/* Page hero */
.page-hero{
  background:linear-gradient(135deg,#EAF3FB 0%,#F8FAFC 100%);
  padding:44px 0 58px;
  position:relative;overflow:hidden;
}
.page-hero:before{
  content:"";position:absolute;inset:0;
  background-image:radial-gradient(rgba(20,107,158,.08) 1px,transparent 1px);
  background-size:22px 22px;pointer-events:none;
}
.hero-grid{
  display:grid;grid-template-columns:1fr 320px;gap:42px;align-items:center;
  position:relative;
}
.hero-eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  background:var(--accent-light);color:#A65E00;
  font-weight:700;font-size:13px;padding:5px 11px;border-radius:40px;
  margin-bottom:18px;letter-spacing:.2px;
}
.hero-eyebrow i{font-size:12px}
.page-hero h1{
  font-size:40px;line-height:1.28;margin:0 0 17px;
  color:var(--primary-deep);
  max-width:12em;
  font-weight:700;
}
.page-hero h1 strong{color:var(--primary);font-weight:800}
.hero-lead{
  font-size:17px;color:#43566a;max-width:620px;line-height:1.8;margin-bottom:28px;
}
.hero-actions{display:flex;gap:14px;flex-wrap:wrap;margin-bottom:8px}
.hero-meta-chips{
  list-style:none;display:flex;flex-wrap:wrap;gap:12px 22px;
  margin-top:26px;padding-top:22px;border-top:1px solid rgba(20,107,158,.15);
  font-size:14px;color:#50687e;
}
.hero-meta-chips li{display:flex;align-items:center;gap:8px}
.hero-meta-chips li i{color:var(--accent)}
.hero-cover{
  border-radius:16px;overflow:hidden;box-shadow:0 14px 32px rgba(11,43,68,.16);
  border:5px solid #fff;
  background:var(--primary-light);
}
.hero-cover img{width:100%;height:270px;object-fit:cover;aspect-ratio:4/3}
@media(max-width:1024px){
  .hero-grid{grid-template-columns:1fr 260px;gap:28px}
  .page-hero h1{font-size:30px}
}
@media(max-width:768px){
  .page-hero{padding:34px 0 40px}
  .hero-grid{grid-template-columns:1fr}
  .page-hero h1{font-size:27px}
  .hero-cover img{height:auto;max-height:240px}
}

/* Section base */
.section-padding{padding:70px 0}
.section-padding-md{padding:48px 0}
.section-title{
  font-size:30px;color:var(--primary-deep);font-weight:700;
  line-height:1.35;margin:0 0 10px;
}
.section-title em{color:var(--primary);font-style:normal}
.section-sub{
  color:var(--muted);font-size:16px;max-width:720px;
  margin:0 auto 34px;line-height:1.8;
}
.section-head{text-align:center;margin-bottom:40px}
.section-head .kicker-tag{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;font-weight:700;letter-spacing:1.2px;
  color:var(--accent);background:#FFF6E8;
  border:1px solid #F7DDB4;
  padding:4px 12px;border-radius:60px;margin-bottom:15px;
}

/* Overview */
.overview-wrap{
  background:linear-gradient(180deg,#fff 0%,#F4F9FD 100%);
}
.overview-figure{
  display:grid;grid-template-columns:1fr .85fr;gap:54px;align-items:center;
}
.overview-figure .media-side{
  border-radius:14px;box-shadow:var(--shadow-card);overflow:hidden;
}
.overview-figure .media-side img{height:360px;width:100%;object-fit:cover}
.overview-figure p:last-child{margin-bottom:0}
.badge-soft{
  display:inline-flex;align-items:center;gap:7px;
  background:#EFF7FE;border:1px solid #C6E0F2;color:var(--primary);
  border-radius:60px;padding:5px 12px;font-size:12.5px;font-weight:700;
}
@media(max-width:860px){
  .overview-figure{grid-template-columns:1fr;gap:26px;margin-top:24px}
  .section-title{font-size:26px}
}

/* toc sidebar and content */
.sidebar-layout{
  display:grid;grid-template-columns:250px minmax(0,1fr);gap:36px;
}
.toc-sidebar{position:sticky;top:90px;align-self:flex-start;max-height:calc(100vh - 110px);overflow:auto;border:1px solid var(--border);border-radius:14px;background:#fff;box-shadow:var(--shadow-card);padding:20px}
.toc-sidebar .toc-title{
  font-size:15px;font-weight:800;color:var(--primary-deep);
  border-bottom:1px solid var(--border);padding-bottom:12px;margin-bottom:12px;
  display:flex;align-items:center;gap:8px;
}
.toc-sidebar .toc-title i{color:var(--accent)}
.toc-sidebar a{
  display:flex;gap:10px;color:#3C5468;font-size:14px;font-weight:500;
  padding:8px 9px;border-radius:7px;line-height:1.5;
}
.toc-sidebar a small{color:#8AA0B5;font-size:12px;font-weight:700;background:#F0F5F9;width:22px;height:22px;border-radius:6px;display:inline-flex;justify-content:center;align-items:center;flex:0 0 auto}
.toc-sidebar a:hover{background:var(--primary-light);color:var(--primary)}
.toc-sidebar .toc-note{
  margin-top:14px;border-top:1px solid var(--border);padding-top:13px;color:var(--muted);
  font-size:13px;line-height:1.6;
}
.toc-sidebar .toc-note .btn{width:100%;margin-top:8px}
.sidebar-main{min-width:0}
.sidebar-main .guide-block{
  background:#fff;border:1px solid var(--border);border-radius:16px;
  box-shadow:var(--shadow-card);padding:0;
  margin-bottom:28px;overflow:hidden;
}
.sidebar-main .guide-block:last-child{margin-bottom:0}
.guide-block-in{
  padding:22px 24px 26px;
  position:relative;
}
.guide-block .block-no{
  position:absolute;top:0;right:24px;
  font-size:102px;line-height:1;color:rgba(20,107,158,.04);
  font-weight:800;pointer-events:none;z-index:0;
}
.guide-block .block-head{
  position:relative;display:flex;gap:14px;align-items:flex-start;margin-bottom:12px;
}
.guide-block .block-head .metabar{
  display:flex;align-items:center;gap:15px;flex-wrap:wrap;
}
.guide-block .block-head .tag-chip{
  display:inline-flex;align-items:center;gap:6px;
  background:#EEF5FA;border:1px solid #D3E3F0;color:var(--primary);
  font-size:12px;border-radius:40px;padding:3px 11px;font-weight:700;
}
.guide-block h2,.guide-block h3{
  font-size:20px;color:var(--primary-deep);margin:4px 0 8px;font-weight:700;
}
.lead-list{margin:0 0 12px 0;list-style:none}
.lead-list li{
  position:relative;padding-left:27px;margin-bottom:8px;
  color:#3c5062;font-size:15px;
}
.lead-list li::before{
  content:"\f00c";font-family:"Font Awesome 6 Free";font-weight:900;
  position:absolute;left:0;top:2px;color:var(--accent);font-size:12px;
}
.block-media{
  display:grid;grid-template-columns:2fr 3fr;gap:24px;align-items:stretch;
  padding:0 24px 20px;
}
.block-media.img-first .block-img{order:2}
.block-img{border-radius:10px;overflow:hidden;background:#EDF2F7;min-height:140px}
.block-img img{width:100%;height:100%;object-fit:cover;min-height:150px}
.guide-list{
  list-style:none;display:grid;gap:12px;
}
.guide-list li{
  display:flex;align-items:flex-start;gap:12px;
  background:#F7FAFD;border:1px solid #ECF1F6;
  border-radius:9px;padding:10px 12px;
}
.guide-list li .icon-box{
  flex:0 0 auto;width:36px;height:36px;border-radius:9px;
  background:var(--primary-light);color:var(--primary);
  display:flex;align-items:center;justify-content:center;font-size:14px;
}
.guide-list li p{font-size:14px;color:#52677B;margin:0}
.guide-list li strong{display:block;font-size:15px;color:#21394e;margin-bottom:1px;font-weight:700}
.read-more{
  display:inline-flex;align-items:center;gap:7px;
  color:var(--primary);font-weight:700;font-size:14px;border-bottom:1px solid transparent;
}
.read-more:hover{color:var(--accent);border-bottom-color:var(--accent)}
.guide-footer-pad{
  padding:10px 24px 22px;display:flex;align-items:center;gap:14px;flex-wrap:wrap;
}
@media(max-width:1024px){
  .sidebar-layout{grid-template-columns:1fr}
  .toc-sidebar{position:relative;top:0;max-height:none}
  .toc-sidebar .toc-tags{display:flex;flex-wrap:wrap}
  .toc-sidebar a{flex:1 0 auto;margin:0 4px 8px 0}
  .block-media{grid-template-columns:1fr}
  .block-media.img-first .block-img{order:0}
  .block-img{min-height:190px}
}
@media(max-width:640px){
  .block-media{padding:0 16px}
  .guide-block-in{padding:20px 18px 24px}
}

/* Notice board line */
.info-callout{
  background:var(--primary-deep);color:#fff;border-radius:16px;
  padding:30px 34px;display:flex;gap:20px;align-items:flex-start;
  position:relative;overflow:hidden;
}
.info-callout:before{
  content:"";position:absolute;top:-40px;right:-30px;
  width:160px;height:160px;border-radius:50%;
  background:rgba(255,255,255,.05);
}
.info-callout i{font-size:34px;color:var(--accent);flex:0 0 auto;margin-top:4px}
.info-callout h3{color:#fff;font-size:19px;margin:0 0 7px}
.info-callout p{color:rgba(255,255,255,.86);margin:0;font-size:15px;max-width:740px}
.info-callout .btn{margin-left:auto}
@media(max-width:820px){
  .info-callout{flex-direction:column}
  .info-callout .btn{margin-left:0}
}

/* CTA middle */
.cta-band{
  background:linear-gradient(108deg,#0B2B44 0%,#146B9E 100%);
  color:#fff;position:relative;overflow:hidden;
}
.cta-band::before{
  content:"";position:absolute;left:0;top:0;bottom:0;width:100%;
  background-image:radial-gradient(circle at 20% 30%,rgba(255,255,255,.05) 1px,transparent 1px);
  background-size:24px 24px;pointer-events:none;
}
.cta-band-box{
  display:grid;grid-template-columns:1.25fr .9fr;gap:44px;align-items:center;
  position:relative;
}
.cta-band h2{color:#fff;font-size:28px;margin:0 0 14px;line-height:1.4}
.cta-band h2 span{color:#FFC975}
.cta-band p{color:rgba(255,255,255,.84);margin-bottom:9px;line-height:1.8}
.cta-band .buttons{display:flex;gap:14px;flex-wrap:wrap;margin-top:24px}
.cta-band .cta-right{
  background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.16);
  border-radius:14px;padding:26px 24px;backdrop-filter:blur(6px);
}
.cta-band .cta-right h4{font-size:17px;margin:0 0 9px;color:#fff}
.cta-band .cta-right p{font-size:14px;line-height:1.7;margin:0}
.cta-band .cta-right .mini-link{
  display:inline-flex;align-items:center;gap:6px;color:#FFC975;font-weight:600;font-size:14px;margin-top:14px;
}
@media(max-width:900px){
  .cta-band-box{grid-template-columns:1fr;gap:18px}
  .cta-band h2{font-size:24px}
}

/* FAQ */
.faq-section{background:#F2F7FB}
.faq-wrap{
  max-width:850px;margin:0 auto;
}
.faq-wrap .accordion{
  list-style:none;margin:0;overflow:visible;
}
.accordion-item{
  background:#fff;border:1px solid var(--border);border-radius:12px;
  overflow:hidden;margin-bottom:12px!important;
  transition:var(--ease);
}
.accordion-item:hover{border-color:#B6CCDE}
.accordion-item .accordion-title{
  background:#fff!important;color:var(--text)!important;
  border-bottom:1px solid transparent!important;
  display:flex;align-items:center;gap:14px;
  width:100%;text-align:left;padding:17px 20px!important;
  font-size:16px!important;line-height:1.6!important;
  border-radius:12px;font-weight:600;margin-bottom:0!important;
}
.accordion-item .accordion-title:hover{background:var(--bg-soft)!important}
.accordion-item.is-active .accordion-title{border-bottom:1px solid var(--border)!important;color:var(--primary-deep)!important}
.faq-mark{
  width:26px;height:26px;flex:0 0 auto;border-radius:7px;
  background:var(--accent);color:#fff;
  display:inline-flex;align-items:center;justify-content:center;
  font-size:14px;
}
.accordion-title .faq-mark{color:#fff;font-weight:500;font-size:15px}
.accordion-title::before,.accordion-title::after{display:none!important}
.accordion-content{
  background:#fff!important;color:#4b5a6a!important;
  padding:16px 22px 20px!important;border-radius:0 0 12px 12px;
}
.accordion-content p:last-child{margin-bottom:0}
.accordion-content ul{margin:10px 0 0 18px;color:#52677B}
@media(max-width:520px){
  .accordion-title{font-size:15px!important;padding:14px 12px!important}
  .accordion-content{padding:12px 15px 16px!important}
}

/* Success and steps */
.steps-block{
  background:var(--bg-soft);
}
.steps-grid{
  display:grid;grid-template-columns:repeat(3,1fr);gap:26px;margin-top:28px;
}
.step-item{
  background:#fff;border:1px solid var(--border);border-radius:16px;
  box-shadow:var(--shadow-card);padding:22px;
}
.step-item .step-num{
  width:44px;height:44px;border-radius:11px;background:#0B2B44;
  color:#fff;display:flex;align-items:center;justify-content:center;
  font-size:20px;font-weight:800;margin-bottom:15px;
}
.step-item:nth-child(2) .step-num{background:var(--primary)}
.step-item h3{color:var(--primary-deep);font-size:18px;margin:0 0 7px;font-weight:700}
.step-item p{font-size:14px;color:#586b7e;margin:0;line-height:1.8}
@media(max-width:820px){
  .steps-grid{grid-template-columns:1fr;gap:14px}
}

/* CTA bottom / final */
.final-cta{
  background:linear-gradient(135deg,#F5FBFE 0%,#EAF3FB 100%);
  position:relative;overflow:hidden;
}
.final-cta:before{
  content:"";position:absolute;top:-90px;right:-60px;width:260px;height:260px;
  background:rgba(20,107,158,.06);border-radius:50%;
}
.final-cta-box{text-align:center;max-width:700px;margin:0 auto;position:relative}
.final-cta-box i{color:var(--primary);font-size:36px;background:#fff;width:66px;height:66px;border-radius:18px;display:inline-flex;justify-content:center;align-items:center;border:1px solid #D8E4EE;box-shadow:var(--shadow-card);margin-bottom:18px}
.final-cta-box h2{font-size:28px;color:var(--primary-deep);margin:0 0 10px}
.final-cta-box p{margin:0 auto 20px;color:var(--muted)}
.final-cta-box .buttons{display:flex;gap:13px;justify-content:center;flex-wrap:wrap}
@media(max-width:520px){
  .final-cta-box h2{font-size:23px}
  .final-cta-box .buttons .btn{width:auto;min-width:150px}
}

/* Footer */
.site-footer{
  background:#0B2B44;color:rgba(255,255,255,.75);
  padding-top:58px;position:relative;overflow:hidden;
}
.site-footer .brand-name{color:#fff}
.site-footer .brand-mark{background:rgba(255,255,255,.12)}
.footer-col{
  margin-bottom:24px;
}
.footer-brand p{margin:16px 0 0;font-size:14px;color:rgba(255,255,255,.62);padding-right:20px;line-height:1.9}
.site-footer h4{
  color:#fff;font-size:15px;margin:0 0 13px;
  font-weight:700;letter-spacing:.3px;
}
.site-footer ul{list-style:none}
.site-footer ul li{margin-bottom:7px}
.site-footer ul li a{
  color:rgba(255,255,255,.64);font-size:14px;display:inline-block;
  transition:all ease .2s;
}
.site-footer ul li a:hover{color:#fff;transform:translateX(4px)}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.12);
  padding:20px 0 18px;display:flex;justify-content:space-between;
  gap:12px 24px;color:rgba(255,255,255,.55);font-size:13px;line-height:1.7;
  margin-top:12px;
}
.footer-bottom p{margin:0}
@media(max-width:700px){
  .footer-bottom{flex-direction:column;justify-content:center;text-align:center}
  .site-footer{padding-top:42px}
}

/* Misc */
.double-column{display:grid;grid-template-columns:1.1fr .9fr;gap:28px;align-items:center}
.mini-guide{
  display:flex;flex-direction:column;
  background:#F9FBFD;border:1px solid #E5EEF5;border-radius:12px;
  padding:18px 18px;
}
.mini-guide strong{color:var(--primary-deep);margin-bottom:6px}
.mini-guide p{font-size:14px;color:var(--muted);margin:0}
.mini-guide .badge-line{margin-bottom:10px;display:flex;gap:6px}
@media(max-width:760px){
  .double-column{grid-template-columns:1fr}
}

/* focus accessibility */
a:focus-visible,button:focus-visible,input:focus-visible{
  outline:3px solid rgba(20,107,158,.4);outline-offset:1px;border-radius:4px;
}

/* roulang page: category3 */
:root {
  --c-primary: #146B9E;
  --c-primary-dark: #0F5178;
  --c-primary-light: #287BB6;
  --c-deep: #0B2B44;
  --c-accent: #E08A1E;
  --c-sky: #EAF3FB;
  --c-bg: #F8FAFC;
  --c-card: #FFFFFF;
  --c-text: #1F2937;
  --c-muted: #5F7185;
  --c-border: #DCE5F0;
  --r-sm: 6px;
  --r-md: 12px;
  --r-lg: 18px;
  --shadow-sm: 0 1px 2px rgba(15, 23, 42, 0.04);
  --shadow-md: 0 8px 24px rgba(15, 42, 84, 0.07);
  --shadow-lg: 0 18px 42px rgba(15, 42, 84, 0.10);
  --font-sans: system-ui, -apple-system, "Segoe UI", Roboto, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
}
*,
*::before,
*::after {
  box-sizing: border-box;
}
html {
  scroll-behavior: smooth;
}
body {
  margin: 0;
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.75;
  color: var(--c-text);
  background: #FFFFFF;
  -webkit-font-smoothing: antialiased;
}
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);
}
ul,
ol {
  padding: 0;
  margin: 0;
  list-style: none;
}
button,
input,
textarea,
select {
  font-family: inherit;
  font-size: inherit;
}
:focus-visible {
  outline: 3px solid rgba(20, 107, 158, 0.35);
  outline-offset: 2px;
}
.row {
  max-width: 1200px;
}

/* ====== 按钮 / 标签 ====== */
.btn,
.header-cta {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  height: 46px;
  padding: 0 22px;
  border-radius: var(--r-sm);
  border: 1px solid transparent;
  font-size: 15px;
  font-weight: 700;
  letter-spacing: .2px;
  cursor: pointer;
  white-space: nowrap;
  transition: all .25s ease;
}
.btn-primary {
  background: var(--c-primary);
  border-color: var(--c-primary);
  color: #FFFFFF;
  box-shadow: 0 8px 18px rgba(20, 107, 158, 0.18);
}
.btn-primary:hover {
  background: var(--c-primary-dark);
  border-color: var(--c-primary-dark);
  color: #FFFFFF;
  transform: translateY(-1px);
  box-shadow: 0 12px 24px rgba(20, 107, 158, 0.24);
}
.btn-outline {
  background: #FFFFFF;
  border-color: #B8D0E2;
  color: var(--c-primary);
}
.btn-outline:hover {
  background: var(--c-sky);
  border-color: var(--c-primary);
  color: var(--c-primary-dark);
}
.btn-light {
  background: #FFFFFF;
  color: var(--c-primary-dark);
  border-color: #FFFFFF;
  box-shadow: 0 10px 22px rgba(6, 35, 60, 0.12);
}
.btn-light:hover {
  background: #F2F7FB;
  color: var(--c-primary);
  transform: translateY(-1px);
}
.btn-outline-light {
  background: transparent;
  border-color: rgba(255, 255, 255, 0.7);
  color: #FFFFFF;
}
.btn-outline-light:hover {
  background: rgba(255, 255, 255, 0.12);
  border-color: #FFFFFF;
  color: #FFFFFF;
}
.badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: rgba(224, 138, 30, 0.12);
  color: #A85F0A;
  font-size: 13px;
  font-weight: 700;
  border-radius: 999px;
  padding: 4px 12px;
}

/* ====== 导航 ====== */
.site-header {
  position: sticky;
  top: 0;
  z-index: 999;
  background: rgba(255, 255, 255, 0.98);
  border-bottom: 1px solid var(--c-border);
  box-shadow: 0 1px 14px rgba(2, 32, 71, 0.05);
  backdrop-filter: blur(8px);
}
.header-inner {
  position: relative;
  display: flex;
  align-items: center;
  min-height: 68px;
}
.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  flex-shrink: 0;
}
.brand-mark {
  display: grid;
  place-items: center;
  width: 38px;
  height: 38px;
  background: linear-gradient(135deg, #146B9E, #0B2B44);
  border-radius: 10px;
  box-shadow: 0 6px 14px rgba(11, 43, 68, 0.16);
}
.brand-mark svg {
  width: 22px;
  height: 22px;
}
.brand-name {
  font-size: 22px;
  font-weight: 800;
  line-height: 1.2;
  color: var(--c-deep);
  letter-spacing: .5px;
}
.brand-name span {
  color: var(--c-primary);
}
.site-nav {
  margin-left: auto;
  display: flex;
  align-items: center;
}
.nav-list {
  display: flex;
  align-items: center;
  gap: 4px;
  margin: 0 18px 0 0;
}
.nav-link {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 9px 16px;
  border-radius: 999px;
  font-size: 15px;
  font-weight: 600;
  color: var(--c-text);
  white-space: nowrap;
  position: relative;
}
.nav-link:hover {
  color: var(--c-primary);
  background: var(--c-sky);
}
.nav-link.active {
  color: var(--c-primary-dark);
  background: rgba(20, 107, 158, 0.12);
}
.nav-link.active::after {
  content: "";
  position: absolute;
  left: 18px;
  right: 18px;
  bottom: 3px;
  height: 2px;
  background: var(--c-accent);
  border-radius: 2px;
}
.header-cta {
  height: 40px;
  padding: 0 18px;
  color: #FFFFFF;
  background: var(--c-primary);
  border-radius: 999px;
  font-size: 14px;
}
.header-cta:hover {
  color: #FFFFFF;
  background: var(--c-primary-dark);
}
.nav-toggle {
  display: none;
  width: 44px;
  height: 44px;
  background: transparent;
  border: 1px solid var(--c-border);
  border-radius: 12px;
  padding: 0;
  align-items: center;
  justify-content: center;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  margin-left: auto;
}
.nav-toggle span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--c-deep);
  border-radius: 2px;
  transition: all .3s ease;
}
.nav-toggle.open span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}
.nav-toggle.open span:nth-child(2) {
  opacity: 0;
}
.nav-toggle.open span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

/* ====== 通用区块 ====== */
.section {
  padding: 88px 0;
}
.section-white {
  background: #FFFFFF;
}
.section-light {
  background: var(--c-bg);
}
.section-deep {
  background: var(--c-deep);
}
.sec-head {
  max-width: 780px;
  margin-bottom: 52px;
}
.sec-head.center {
  margin-left: auto;
  margin-right: auto;
  text-align: center;
}
.section-kicker {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 14px;
  font-weight: 800;
  letter-spacing: 1.2px;
  color: var(--c-primary);
  text-transform: uppercase;
  margin-bottom: 12px;
}
.section-kicker::before {
  content: "";
  width: 7px;
  height: 7px;
  background: var(--c-accent);
  border-radius: 2px;
  transform: rotate(45deg);
}
.section-title {
  font-size: clamp(26px, 3.4vw, 40px);
  line-height: 1.25;
  color: var(--c-deep);
  margin: 0 0 16px;
  font-weight: 800;
  letter-spacing: .5px;
}
.center .section-title {
  margin-bottom: 18px;
}
.section-desc {
  color: var(--c-muted);
  font-size: 16px;
  line-height: 1.8;
  margin: 0;
}

/* ====== 首页头尾用面包屑/隐藏锚点 ====== */
.skip-anchor {
  position: absolute;
  top: 70px;
  left: 0;
  width: 1px;
  height: 1px;
  overflow: hidden;
}
.main-wrap {
  position: relative;
}

/* ====== Hero ====== */
.channel-hero {
  position: relative;
  padding: 72px 0 86px;
  background:
    linear-gradient(116deg, #EAF3FB 0%, #FFFFFF 54%, #F2F8FC 100%);
  border-bottom: 1px solid #E6EDF5;
  overflow: hidden;
}
.channel-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background-image:
    radial-gradient(rgba(20, 107, 158, 0.10) 1px, transparent 1px),
    url("/assets/images/backpic/back-1.png");
  background-size: 26px 26px, cover;
  background-position: 0 0, center;
  opacity: .45;
  mask-image: linear-gradient(to right, rgba(0,0,0,.8), rgba(0,0,0,.25));
}
.channel-hero .row {
  position: relative;
  z-index: 2;
}
.breadcrumb {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 8px;
  font-size: 14px;
  margin-bottom: 22px;
  color: #7A8B9C;
}
.breadcrumb a {
  color: #627A92;
  font-weight: 500;
}
.breadcrumb a:hover {
  color: var(--c-primary);
}
.breadcrumb .sep {
  color: #B7C7D6;
}
.breadcrumb .current {
  color: var(--c-primary);
  font-weight: 600;
}
.hero-tag {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(20, 107, 158, 0.12);
  color: var(--c-primary-dark);
  padding: 6px 14px;
  border-radius: 999px;
  font-weight: 700;
  font-size: 14px;
  margin-bottom: 14px;
}
.hero-tag i {
  width: 6px;
  height: 6px;
  background: var(--c-accent);
  border-radius: 50%;
}
.channel-hero h1 {
  font-size: clamp(34px, 4.6vw, 52px);
  line-height: 1.2;
  color: var(--c-deep);
  margin: 0 0 18px;
  font-weight: 900;
  letter-spacing: -0.5px;
}
.channel-hero h1 .hl {
  color: var(--c-primary);
  position: relative;
}
.hero-lead {
  font-size: 17px;
  line-height: 1.85;
  max-width: 560px;
  color: #4A5C6D;
  margin-bottom: 28px;
}
.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-bottom: 34px;
}
.hero-points {
  display: flex;
  flex-wrap: wrap;
  gap: 18px 30px;
}
.hero-points li {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-size: 14px;
  font-weight: 600;
  color: #34485C;
}
.hero-points li::before {
  content: "";
  width: 20px;
  height: 20px;
  background: rgba(20, 107, 158, 0.1);
  border-radius: 50%;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 16 16' fill='none' xmlns='http://www.w3.org/2000/svg'%3E%3Cpath d='M3.5 8.5L6.5 11.5L12.5 5' stroke='%23146B9E' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E");
  background-size: 14px 14px;
  background-position: center;
  flex-shrink: 0;
}
.hero-media-wrap {
  position: relative;
}
.hero-media {
  position: relative;
  z-index: 4;
  border-radius: 22px;
  overflow: hidden;
  background: #FFFFFF;
  border: 1px solid #E3EBF3;
  box-shadow: var(--shadow-lg);
}
.hero-media img {
  width: 100%;
  aspect-ratio: 4 / 3;
  object-fit: cover;
}
.hero-media::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(11, 43, 68, 0.12), transparent 35%);
  pointer-events: none;
}
.hero-float-card {
  position: absolute;
  left: -18px;
  bottom: 34px;
  z-index: 8;
  background: #FFFFFF;
  border: 1px solid #E2EBF4;
  border-radius: 16px;
  box-shadow: var(--shadow-md);
  padding: 14px 18px;
  display: flex;
  align-items: center;
  gap: 12px;
  max-width: 240px;
}
.hero-float-icon {
  width: 40px;
  height: 40px;
  border-radius: 10px;
  background: var(--c-sky);
  display: grid;
  place-items: center;
  flex-shrink: 0;
}
.hero-float-icon svg {
  width: 20px;
  height: 20px;
}
.hero-float-card strong {
  display: block;
  color: var(--c-deep);
  font-size: 14px;
  line-height: 1.4;
}
.hero-float-card span {
  font-size: 12px;
  color: var(--c-muted);
}
.hero-bg-deco {
  position: absolute;
  right: -70px;
  top: -110px;
  width: 320px;
  height: 320px;
  border-radius: 80px;
  background: rgba(20, 107, 158, 0.08);
  transform: rotate(34deg);
  z-index: 0;
}

/* ====== 信息卡 ====== */
.info-card {
  background: #FFFFFF;
  border: 1px solid #E4ECF4;
  border-radius: 16px;
  padding: 28px 26px;
  height: 100%;
  box-shadow: var(--shadow-sm);
  transition: box-shadow .25s ease, border-color .25s ease, transform .25s ease;
}
.info-card:hover {
  border-color: #BFD6E8;
  box-shadow: var(--shadow-md);
  transform: translateY(-4px);
}
.icon-squ {
  display: grid;
  place-items: center;
  width: 48px;
  height: 48px;
  background: var(--c-sky);
  border-radius: 12px;
  margin-bottom: 18px;
}
.icon-squ svg {
  width: 24px;
  height: 24px;
  stroke: var(--c-primary);
}
.info-card h3 {
  font-size: 20px;
  color: var(--c-deep);
  margin: 0 0 10px;
  font-weight: 800;
}
.info-card p {
  font-size: 15px;
  color: var(--c-muted);
  margin: 0;
  line-height: 1.8;
}
.card-tag {
  position: absolute;
  top: 18px;
  right: 18px;
  background: rgba(224, 138, 30, 0.12);
  color: #A85F0A;
  padding: 3px 10px;
  border-radius: 999px;
  font-size: 12px;
  font-weight: 700;
}

/* ====== 图文区 ====== */
.split-media {
  position: relative;
  border-radius: 20px;
  overflow: hidden;
  box-shadow: var(--shadow-md);
  border: 1px solid #E2EBF3;
}
.split-media img {
  width: 100%;
  aspect-ratio: 4 / 3;
  object-fit: cover;
}
.split-media .screen-status {
  position: absolute;
  left: 20px;
  bottom: 20px;
  background: rgba(255, 255, 255, 0.92);
  border-radius: 12px;
  padding: 10px 14px;
  display: flex;
  flex-wrap: wrap;
  gap: 6px 12px;
}
.screen-status span {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 13px;
  color: var(--c-deep);
  font-weight: 600;
}
.screen-status i {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: #42B883;
}
.screen-status i.warn {
  background: var(--c-accent);
}
.split-content .title {
  font-size: 28px;
  line-height: 1.35;
  color: var(--c-deep);
  font-weight: 800;
  margin: 0 0 14px;
}
.split-content .desc {
  color: var(--c-muted);
  margin-bottom: 24px;
}
.check-list {
  display: grid;
  gap: 12px;
}
.check-list li {
  position: relative;
  padding-left: 34px;
  color: #315069;
  font-size: 15px;
  line-height: 1.7;
  font-weight: 500;
}
.check-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 3px;
  width: 22px;
  height: 22px;
  background: var(--c-sky);
  border-radius: 50%;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 16 16' fill='none' xmlns='http://www.w3.org/2000/svg'%3E%3Cpath d='M3.5 8.5L6.5 11.5L12.5 5' stroke='%23146B9E' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E");
  background-size: 14px;
  background-position: center;
}
.link-arrow {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-weight: 700;
  color: var(--c-primary);
}
.link-arrow:hover {
  gap: 10px;
}
.link-arrow svg {
  width: 15px;
  height: 15px;
  stroke: currentColor;
}

/* ====== CTA 横条 ====== */
.cta-band {
  background: linear-gradient(120deg, #0B2B44 0%, #146B9E 55%, #287BB6 100%);
  border-radius: 22px;
  position: relative;
  overflow: hidden;
  padding: 48px 42px;
  color: #FFFFFF;
}
.cta-band::before {
  content: "";
  position: absolute;
  inset: 0;
  background:
    radial-gradient(circle at 18% 20%, rgba(255, 255, 255, 0.2), transparent 34%),
    radial-gradient(circle at 88% 88%, rgba(255, 255, 255, 0.12), transparent 30%);
  pointer-events: none;
}
.cta-band .row {
  position: relative;
  z-index: 1;
  width: 100%;
}
.cta-band h3 {
  font-size: clamp(23px, 3vw, 34px);
  line-height: 1.35;
  margin: 0 0 12px;
  font-weight: 800;
}
.cta-band p {
  color: rgba(255, 255, 255, 0.88);
  font-size: 15px;
  max-width: 620px;
  margin: 0;
}
.cta-band .btn-group {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  justify-content: flex-end;
}

/* ====== 流程时间轴 ====== */
.flow-zone {
  position: relative;
}
.flow-zone::before {
  content: "";
  position: absolute;
  top: 42px;
  left: 7%;
  right: 7%;
  height: 2px;
  background: repeating-linear-gradient(90deg, #BFD4E5 0, #BFD4E5 8px, transparent 8px, transparent 16px);
  border-radius: 2px;
}
.step-card {
  text-align: center;
  position: relative;
  background: #FFFFFF;
  border: 1px solid #E4ECF4;
  border-radius: 18px;
  padding: 56px 16px 26px;
  height: 100%;
  box-shadow: var(--shadow-sm);
  transition: box-shadow .25s ease, transform .25s ease, border-color .25s ease;
}
.step-card:hover {
  border-color: #BFD6E8;
  box-shadow: var(--shadow-md);
  transform: translateY(-4px);
}
.step-num {
  position: absolute;
  top: -20px;
  left: 50%;
  transform: translateX(-50%);
  width: 44px;
  height: 44px;
  background: linear-gradient(135deg, #146B9E, #0B2B44);
  color: #FFFFFF;
  font-size: 16px;
  font-weight: 800;
  border-radius: 50%;
  display: grid;
  place-items: center;
  box-shadow: 0 8px 20px rgba(20, 107, 158, 0.25);
  z-index: 2;
}
.step-icon {
  display: grid;
  place-items: center;
  width: 48px;
  height: 48px;
  background: var(--c-sky);
  border-radius: 14px;
  margin: 0 auto 16px;
}
.step-icon svg {
  width: 24px;
  height: 24px;
  stroke: var(--c-primary);
}
.step-card h3 {
  font-size: 18px;
  color: var(--c-deep);
  margin: 0 0 8px;
  font-weight: 800;
}
.step-card p {
  font-size: 14px;
  color: var(--c-muted);
  margin: 0;
  line-height: 1.7;
}

/* ====== FAQ / 表单 ====== */
.faq-wrap {
  margin-top: 8px;
}
.faq-item {
  background: #FFFFFF;
  border: 1px solid var(--c-border);
  border-radius: 16px;
  margin-bottom: 14px;
  padding: 0 0 0 22px;
  transition: box-shadow .25s ease, border-color .25s ease;
  overflow: hidden;
}
.faq-item.open {
  box-shadow: var(--shadow-sm);
  border-color: #B7D0E3;
}
.faq-title {
  margin: 0;
}
.faq-q {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  border: 0;
  background: transparent;
  padding: 20px 22px 20px 0;
  text-align: left;
  cursor: pointer;
  font-weight: 700;
  font-size: 16px;
  line-height: 1.5;
  color: #16354F;
}
.faq-q-text {
  color: inherit;
}
.faq-icon-bx {
  width: 26px;
  height: 26px;
  border-radius: 50%;
  background: var(--c-accent);
  display: grid;
  place-items: center;
  flex-shrink: 0;
  transition: transform .3s ease, background .2s ease;
}
.faq-icon-bx::before {
  content: "";
  width: 12px;
  height: 2px;
  background: #FFFFFF;
  border-radius: 2px;
}
.faq-icon-bx::after {
  content: "";
  position: absolute;
  width: 2px;
  height: 12px;
  background: #FFFFFF;
  border-radius: 2px;
}
.faq-item.open .faq-icon-bx {
  transform: rotate(135deg);
  background: var(--c-primary);
}
.faq-a {
  max-height: 0;
  overflow: hidden;
  transition: max-height .35s ease, padding .35s ease;
}
.faq-item.open .faq-a {
  max-height: 480px;
}
.faq-a-inner {
  padding-right: 26px;
  padding-bottom: 22px;
  color: #4C6075;
  font-size: 15px;
  line-height: 1.85;
  border-top: 1px dashed #DCE8F1;
  padding-top: 16px;
}
.coop-form-card {
  background: #FFFFFF;
  border: 1px solid #E0EAF3;
  border-radius: 22px;
  box-shadow: var(--shadow-md);
  padding: 34px 30px 28px;
  position: sticky;
  top: 100px;
}
.coop-form-card h3 {
  color: var(--c-deep);
  font-size: 22px;
  margin: 0 0 6px;
  font-weight: 800;
}
.coop-form-card > p {
  color: var(--c-muted);
  font-size: 14px;
  margin-bottom: 24px;
}
.form-label {
  display: block;
  color: #2A435B;
  font-weight: 600;
  font-size: 14px;
  margin-bottom: 6px;
}
.form-input,
.form-textarea,
.form-select {
  width: 100%;
  height: 44px;
  background: var(--c-bg);
  border: 1px solid var(--c-border);
  border-radius: 10px;
  padding: 0 14px;
  font-size: 14px;
  color: var(--c-text);
  transition: all .2s ease;
  margin-bottom: 16px;
  appearance: none;
}
.form-textarea {
  height: 104px;
  padding-top: 10px;
  resize: vertical;
}
.form-input:focus,
.form-textarea:focus,
.form-select:focus {
  outline: none;
  background: #FFFFFF;
  border-color: var(--c-primary);
  box-shadow: 0 0 0 4px rgba(20, 107, 158, 0.12);
}
.form-control-group {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0 12px;
}
.form-card-btn {
  width: 100%;
}
.form-footer-tip {
  margin-top: 14px;
  text-align: center;
  font-size: 12px;
  color: #95A6B5;
}

/* ====== 深色尾 CTA ====== */
.cta-final {
  background: #0A263C;
  background-image: linear-gradient(120deg, rgba(20, 107, 158, 0.28), transparent 58%), radial-gradient(circle at 80% 120%, rgba(224, 138, 30, 0.25), transparent 30%), url("/assets/images/backpic/back-3.webp");
  background-position: center;
  background-size: cover;
  position: relative;
  overflow: hidden;
  padding: 100px 0;
  text-align: center;
}
.cta-final::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image: radial-gradient(rgba(255, 255, 255, 0.14) 1px, transparent 1px);
  background-size: 22px 22px;
  opacity: .35;
}
.cta-final .row {
  position: relative;
  z-index: 2;
}
.cta-final .title {
  font-size: clamp(27px, 4vw, 44px);
  color: #FFFFFF;
  line-height: 1.3;
  margin: 0 0 16px;
  font-weight: 900;
}
.cta-final .desc {
  color: rgba(255, 255, 255, 0.86);
  max-width: 720px;
  margin: 0 auto 30px;
  font-size: 16px;
}
.cta-final .btn-group {
  display: inline-flex;
  flex-wrap: wrap;
  gap: 14px;
  justify-content: center;
}
.mini-note {
  margin-top: 20px;
  color: rgba(255, 255, 255, 0.58);
  font-size: 13px;
}

/* ====== 页脚 ====== */
.site-footer {
  background: #0A263C;
  background-image: linear-gradient(180deg, rgba(20, 107, 158, 0.2), rgba(10, 38, 60, 0.9)), url("/assets/images/backpic/back-2.webp");
  background-size: cover;
  background-position: center;
  color: #FFFFFF;
  padding: 78px 0 32px;
}
.site-footer .brand {
  margin-bottom: 16px;
}
.footer-brand .brand {
  display: inline-flex;
}
.site-footer .brand-name {
  color: #FFFFFF;
}
.site-footer .brand-name span {
  color: var(--c-accent);
}
.footer-brand > p {
  color: rgba(255, 255, 255, 0.68);
  font-size: 15px;
  line-height: 1.8;
  max-width: 340px;
  margin: 0 0 26px;
}
.footer-col h4 {
  color: #FFFFFF;
  font-size: 16px;
  font-weight: 800;
  margin: 0 0 18px;
  letter-spacing: .3px;
}
.footer-col ul {
  display: grid;
  gap: 9px;
  margin: 0;
}
.footer-col ul a {
  color: rgba(255, 255, 255, 0.7);
  font-size: 14px;
  line-height: 1.6;
  transition: color .2s ease;
}
.footer-col ul a:hover {
  color: #FFFFFF;
}
.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.16);
  margin-top: 54px;
  padding-top: 24px;
  text-align: left;
}
.footer-bottom p {
  color: rgba(255, 255, 255, 0.55);
  font-size: 13px;
  line-height: 1.7;
  margin-bottom: 4px;
}
.footer-bottom a {
  color: rgba(255, 255, 255, 0.72);
}

/* ====== 响应式 ====== */
@media (max-width: 1024px) {
  .section {
    padding: 68px 0;
  }
  .channel-hero {
    padding: 56px 0 70px;
  }
  .site-header {
    padding: 8px 0;
  }
  .nav-toggle {
    display: flex;
  }
  .site-nav {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    margin-left: 0;
    background: #FFFFFF;
    border-bottom: 1px solid var(--c-border);
    border-radius: 0 0 18px 18px;
    box-shadow: 0 20px 34px rgba(11, 43, 68, 0.16);
    padding: 18px;
    flex-direction: column;
    align-items: stretch;
  }
  .site-nav.open {
    display: flex;
  }
  .nav-list {
    flex-direction: column;
    gap: 4px;
    margin: 0 0 14px;
  }
  .nav-link {
    justify-content: flex-start;
    padding: 12px 16px;
    border-radius: 12px;
  }
  .nav-link.active::after {
    left: auto;
    right: 18px;
    width: 4px;
    height: 14px;
  }
  .header-cta {
    justify-content: center;
    height: 44px;
  }
  .cta-band {
    padding: 38px 28px;
  }
  .cta-band .btn-group {
    justify-content: flex-start;
    margin-top: 20px;
  }
  .coop-form-card {
    margin-top: 28px;
  }
}
@media (max-width: 760px) {
  .section {
    padding: 56px 0;
  }
  .channel-hero {
    padding: 40px 0 60px;
  }
  .row {
    max-width: 100%;
  }
  .brand-mark {
    width: 34px;
    height: 34px;
  }
  .brand-name {
    font-size: 19px;
  }
  .channel-hero h1 {
    font-size: 30px;
    letter-spacing: 0;
  }
  .hero-lead {
    font-size: 16px;
  }
  .hero-actions .btn,
  .hero-actions .btn-outline {
    flex: 1;
  }
  .hero-media-wrap {
    margin-top: 20px;
  }
  .hero-float-card {
    left: 12px;
    bottom: -16px;
  }
  .hero-points {
    gap: 14px 18px;
  }
  .hero-points li {
    width: 100%;
  }
  .sec-head {
    margin-bottom: 32px;
  }
  .section-title {
    font-size: 27px;
  }
  .info-card {
    padding: 22px 18px;
    margin-bottom: 20px;
  }
  .split-content .title {
    font-size: 24px;
    margin-top: 24px;
  }
  .flow-zone::before {
    display: none;
  }
  .step-card {
    margin-bottom: 20px;
    padding: 48px 10px 20px;
  }
  .faq-q {
    padding: 17px 14px 17px 0;
    font-size: 15px;
    gap: 12px;
  }
  .faq-a-inner {
    padding-right: 18px;
    font-size: 14px;
  }
  .coop-form-card {
    padding: 26px 20px 22px;
  }
  .cta-final {
    padding: 70px 0;
  }
  .btn-group .btn {
    width: 100%;
  }
  .footer-bottom {
    text-align: center;
  }
  .footer-col {
    margin-bottom: 24px;
  }
}

/* roulang page: category4 */
:root {
    --primary: #146B9E;
    --primary-deep: #0B2B44;
    --primary-soft: #EAF3FB;
    --primary-light: #F4F9FD;
    --accent: #E08A1E;
    --darker: #0A2238;
    --body: #1F2937;
    --text-light: #64748B;
    --border: #E2EAF2;
    --muted-line: #DCE5F0;
    --bg: #F7FAFC;
    --white: #FFFFFF;
    --radius-lg: 18px;
    --radius-md: 12px;
    --radius-sm: 8px;
    --shadow-sm: 0 4px 12px rgba(15, 23, 42, 0.06);
    --shadow-lg: 0 12px 30px rgba(2, 32, 71, 0.08);
    --font: system-ui, -apple-system, "Segoe UI", Roboto, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  }
  *,
  *::before,
  *::after {
    box-sizing: border-box;
  }
  html {
    scroll-behavior: smooth;
  }
  body {
    margin: 0;
    font-family: var(--font);
    background: var(--bg);
    color: var(--body);
    font-size: 16px;
    line-height: 1.75;
    -webkit-font-smoothing: antialiased;
  }
  img {
    max-width: 100%;
    display: block;
  }
  a {
    color: var(--primary);
    text-decoration: none;
    transition: color .2s ease;
  }
  a:hover {
    color: #0A5581;
  }
  p,
  h1,
  h2,
  h3,
  h4 {
    margin-top: 0;
  }
  .container {
    max-width: 1220px;
    margin: 0 auto;
    padding: 0 clamp(18px, 4vw, 32px);
  }
  .row {
    max-width: 100%;
  }
  .columns {
    word-break: break-word;
  }
  section[id],
  div[id] {
    scroll-margin-top: 92px;
  }

  /* ========== Buttons ========== */
  .btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    border-radius: 6px;
    height: 44px;
    padding: 0 26px;
    font-size: 15px;
    font-weight: 600;
    letter-spacing: .02em;
    border: 1px solid transparent;
    transition: background .25s ease, box-shadow .25s ease, border .25s ease, transform .2s ease;
    cursor: pointer;
  }
  .btn:hover {
    transform: translateY(-1px);
  }
  .btn:focus-visible {
    outline: 3px solid rgba(20, 107, 158, .24);
    outline-offset: 2px;
  }
  .btn-primary {
    background: var(--primary);
    color: #fff;
    border-color: var(--primary);
    box-shadow: 0 6px 16px rgba(20, 107, 158, .18);
  }
  .btn-primary:hover {
    background: #12598A;
    color: #fff;
  }
  .btn-ghost {
    background: rgba(255, 255, 255, .85);
    border-color: #C7D8E6;
    color: var(--primary-deep);
  }
  .btn-ghost:hover {
    color: var(--primary);
    border-color: var(--primary);
  }
  .btn-block {
    width: 100%;
  }
  .btn-sm {
    height: 38px;
    padding: 0 18px;
    font-size: 14px;
  }

  /* ========== Header / Nav ========== */
  .site-header {
    position: sticky;
    top: 0;
    z-index: 100;
    height: 68px;
    background: rgba(255, 255, 255, .96);
    border-bottom: 1px solid var(--border);
    backdrop-filter: blur(10px);
  }
  .header-inner {
    height: 68px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 24px;
    padding-top: 0;
    padding-bottom: 0;
  }
  .brand {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    flex-shrink: 0;
  }
  .brand-mark {
    width: 38px;
    height: 38px;
    background: var(--primary);
    border-radius: 11px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 6px 12px rgba(20, 107, 158, .22);
  }
  .brand-mark svg {
    width: 22px;
    height: 22px;
  }
  .brand-name {
    color: var(--primary-deep);
    font-size: 20px;
    font-weight: 800;
    letter-spacing: .01em;
    line-height: 1.2;
    white-space: nowrap;
  }
  .brand-name span {
    color: var(--primary);
  }
  .site-footer .brand-name {
    color: #fff;
  }
  .site-nav {
    display: flex;
    align-items: center;
    gap: 20px;
    margin-left: auto;
  }
  .nav-list {
    display: flex;
    list-style: none;
    margin: 0;
    padding: 0;
    gap: 4px;
  }
  .nav-link {
    display: block;
    padding: 9px 14px;
    font-size: 15px;
    font-weight: 500;
    color: #334E68;
    border-radius: 8px;
    white-space: nowrap;
    position: relative;
    transition: color .2s ease, background .2s ease;
  }
  .nav-link:hover {
    color: var(--primary);
    background: var(--primary-light);
  }
  .nav-link.active {
    color: var(--primary);
    font-weight: 700;
  }
  .nav-link.active::after {
    content: "";
    position: absolute;
    left: 14px;
    right: 14px;
    bottom: 2px;
    height: 3px;
    border-radius: 999px;
    background: var(--accent);
  }
  .header-cta {
    background: var(--primary);
    color: #fff;
    height: 42px;
    padding: 0 20px;
    display: inline-flex;
    align-items: center;
    border-radius: 6px;
    font-size: 14px;
    font-weight: 600;
    transition: background .25s ease, box-shadow .25s ease;
  }
  .header-cta:hover {
    background: #12598A;
    color: #fff;
    box-shadow: 0 8px 20px rgba(20, 107, 158, .18);
  }
  .nav-toggle {
    display: none;
    width: 44px;
    height: 44px;
    border: 0;
    background: transparent;
    cursor: pointer;
    padding: 10px;
    border-radius: 10px;
  }
  .nav-toggle span {
    display: block;
    width: 22px;
    height: 2px;
    background: var(--primary-deep);
    margin: 4px auto;
    border-radius: 2px;
    transition: transform .22s ease, opacity .22s ease;
  }
  .nav-toggle[aria-expanded="true"] span:nth-child(1) {
    transform: translateY(6px) rotate(45deg);
  }
  .nav-toggle[aria-expanded="true"] span:nth-child(2) {
    opacity: 0;
  }
  .nav-toggle[aria-expanded="true"] span:nth-child(3) {
    transform: translateY(-6px) rotate(-45deg);
  }

  /* ========== Breadcrumb ========== */
  .breadcrumb-bar {
    background: linear-gradient(90deg, #F2F7FB, #fff);
    border-bottom: 1px solid var(--border);
    padding: 10px 0;
    font-size: 13px;
  }
  .breadcrumb-bar a {
    color: var(--text-light);
  }
  .breadcrumb-bar a:hover {
    color: var(--primary);
  }
  .breadcrumb-bar .sep {
    margin: 0 10px;
    color: #B8C9D8;
  }
  .breadcrumb-bar .current {
    color: var(--primary-deep);
    font-weight: 600;
  }

  /* ========== Hero ========== */
  .page-hero {
    position: relative;
    overflow: hidden;
    background: linear-gradient(103deg, #EAF3FB 0%, #F8FBFF 62%, #FFFFFF 100%);
    padding: 64px 0 70px;
  }
  .page-hero::before {
    content: "";
    position: absolute;
    inset: 0;
    background-image: url('/assets/images/backpic/back-1.png');
    background-size: cover;
    background-position: center;
    opacity: .28;
    pointer-events: none;
    mix-blend-mode: multiply;
  }
  .page-hero .container {
    position: relative;
    z-index: 2;
  }
  .hero-eyebrow {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: rgba(255, 255, 255, .7);
    border: 1px solid rgba(20, 107, 158, .16);
    color: var(--primary);
    font-size: 13px;
    font-weight: 700;
    border-radius: 999px;
    padding: 6px 16px;
    margin-bottom: 22px;
    backdrop-filter: blur(4px);
  }
  .hero-eyebrow::before {
    content: "";
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--accent);
  }
  .page-hero h1 {
    font-size: clamp(30px, 4.4vw, 44px);
    line-height: 1.25;
    color: var(--primary-deep);
    font-weight: 800;
    margin-bottom: 16px;
    letter-spacing: -.01em;
  }
  .page-hero h1 .highlight {
    color: var(--primary);
    position: relative;
    white-space: nowrap;
  }
  .page-hero .lead {
    font-size: 17px;
    color: #405B74;
    margin-bottom: 20px;
    max-width: 620px;
  }
  .hero-note {
    background: #fff;
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
    padding: 18px 20px;
    font-size: 14px;
    max-width: 520px;
    line-height: 1.8;
    color: #405B74;
    margin-top: 4px;
  }
  .hero-note strong {
    color: var(--primary-deep);
    display: block;
    margin-bottom: 4px;
    font-size: 15px;
  }
  .hero-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    margin: 26px 0 20px;
  }
  .hero-query {
    display: flex;
    flex-wrap: wrap;
    gap: 16px;
    font-size: 14px;
    color: var(--text-light);
    margin: 0;
    padding: 0;
    list-style: none;
  }
  .hero-query li {
    display: inline-flex;
    align-items: center;
    gap: 8px;
  }
  .hero-query li::before {
    content: "✓";
    color: var(--primary);
    font-weight: 700;
  }

  /* ========== Section base ========== */
  .normal-section {
    padding: 88px 0;
  }
  .section-head {
    margin-bottom: 48px;
    max-width: 860px;
  }
  .section-head.center {
    margin-left: auto;
    margin-right: auto;
    text-align: center;
  }
  .section-eyebrow {
    color: var(--primary);
    font-size: 14px;
    font-weight: 700;
    letter-spacing: .08em;
    text-transform: uppercase;
    margin-bottom: 10px;
    display: inline-block;
  }
  .section-head h2 {
    color: var(--primary-deep);
    font-size: clamp(26px, 3vw, 34px);
    font-weight: 800;
    line-height: 1.35;
    margin-bottom: 14px;
  }
  .section-head p {
    color: var(--text-light);
    font-size: 16px;
    margin-bottom: 0;
  }

  /* ========== Quick topic cards ========== */
  .quick-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
  }
  .quick-topic {
    display: block;
    background: #fff;
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 26px 24px 22px;
    box-shadow: var(--shadow-sm);
    color: var(--body);
    transition: box-shadow .25s ease, border-color .25s ease, transform .2s ease;
  }
  .quick-topic:hover {
    border-color: #C7D8E6;
    box-shadow: var(--shadow-lg);
    color: var(--body);
    transform: translateY(-3px);
  }
  .quick-topic .qt-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 42px;
    height: 42px;
    border-radius: 12px;
    background: var(--primary-soft);
    color: var(--primary);
    font-weight: 800;
    font-size: 15px;
    margin-bottom: 18px;
  }
  .quick-topic:hover .qt-icon {
    background: var(--primary);
    color: #fff;
  }
  .quick-topic h3 {
    font-size: 18px;
    color: var(--primary-deep);
    margin-bottom: 8px;
    font-weight: 700;
  }
  .quick-topic p {
    font-size: 14px;
    color: var(--text-light);
    line-height: 1.7;
    margin-bottom: 14px;
  }
  .quick-topic .go-link {
    color: var(--primary);
    font-weight: 600;
    font-size: 14px;
    display: inline-flex;
    align-items: center;
    gap: 4px;
  }
  .quick-topic .go-link::after {
    content: "→";
    transition: transform .2s ease;
  }
  .quick-topic:hover .go-link::after {
    transform: translateX(3px);
  }

  /* ========== Detail intro ========== */
  .bg-soft {
    background: linear-gradient(180deg, #FFFFFF, #F1F7FC 100%);
  }
  .intro-media {
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-lg);
    background: #EAF3FB;
    position: relative;
  }
  .intro-media img {
    width: 100%;
    height: 430px;
    object-fit: cover;
  }
  .intro-caption {
    position: absolute;
    left: 16px;
    bottom: 16px;
    background: rgba(11, 43, 68, .78);
    color: #fff;
    font-size: 13px;
    border-radius: 999px;
    padding: 6px 16px;
    backdrop-filter: blur(6px);
  }
  .content-block h2 {
    color: var(--primary-deep);
    font-size: 30px;
    font-weight: 800;
    line-height: 1.4;
    margin-bottom: 18px;
  }
  .content-block > p {
    color: #42566B;
    line-height: 2;
    margin-bottom: 16px;
    font-size: 16px;
  }
  .content-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    list-style: none;
    padding: 0;
    margin: 24px 0;
  }
  .content-tags li {
    background: var(--primary-soft);
    color: var(--primary-deep);
    font-size: 13px;
    padding: 7px 14px;
    border-radius: 999px;
    border: 1px solid rgba(20, 107, 158, .12);
    font-weight: 600;
  }

  /* ========== Workflow ========== */
  .flow-panel {
    background: #0B2B44;
    border-radius: 26px;
    padding: clamp(28px, 5.5vw, 72px);
    color: #fff;
    position: relative;
    overflow: hidden;
  }
  .flow-panel::before {
    content: "";
    position: absolute;
    right: -80px;
    top: -80px;
    width: 240px;
    height: 240px;
    background: radial-gradient(circle, rgba(255, 255, 255, .12), transparent 65%);
  }
  .flow-panel .section-head h2 {
    color: #fff;
  }
  .flow-panel .section-head p {
    color: rgba(255, 255, 255, .65);
  }
  .workflow-row {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 22px;
    position: relative;
    z-index: 2;
  }
  .step-node {
    padding-left: 6px;
  }
  .step-num {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 52px;
    height: 52px;
    border-radius: 16px;
    background: rgba(224, 138, 30, .15);
    border: 1px solid rgba(224, 138, 30, .5);
    color: #F3B462;
    font-size: 20px;
    font-weight: 800;
    margin-bottom: 18px;
  }
  .step-node h3 {
    color: #fff;
    font-size: 18px;
    font-weight: 700;
    margin-bottom: 10px;
  }
  .step-node p {
    color: rgba(255, 255, 255, .62);
    font-size: 14px;
    line-height: 1.8;
    margin-bottom: 0;
  }
  .step-line {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 10px;
    margin-top: 36px;
    padding: 16px 0 0;
    border-top: 1px solid rgba(255, 255, 255, .15);
  }
  .step-line span {
    font-size: 13px;
    color: rgba(255, 255, 255, .45);
    position: relative;
    padding-left: 22px;
  }
  .step-line span::before {
    content: "";
    position: absolute;
    left: 2px;
    top: 50%;
    width: 10px;
    height: 10px;
    transform: translateY(-50%);
    background: var(--accent);
    border-radius: 3px;
  }

  /* ========== FAQ ========== */
  .faq-wrap {
    background: linear-gradient(180deg, #FFF 0%, #F1F7FC 100%);
  }
  .faq-stack {
    max-width: 920px;
    margin: 0 auto;
  }
  .faq-accordion .accordion-item {
    background: #fff;
    border: 1px solid var(--border);
    border-radius: 16px;
    margin-bottom: 16px;
    overflow: hidden;
    box-shadow: var(--shadow-sm);
    transition: box-shadow .2s ease, border-color .2s ease;
  }
  .faq-accordion .accordion-item.is-active {
    border-color: rgba(20, 107, 158, .3);
    box-shadow: var(--shadow-lg);
  }
  .faq-accordion .accordion-title {
    color: var(--primary-deep) !important;
    font-size: 17px;
    font-weight: 700;
    padding: 20px 58px 20px 24px;
    line-height: 1.6;
    background: #fff;
    display: flex;
    align-items: center;
    gap: 14px;
  }
  .faq-accordion .accordion-title:hover {
    background: #F9FCFE;
  }
  .q-tag {
    width: 38px;
    height: 38px;
    flex: 0 0 38px;
    background: var(--primary-soft);
    color: var(--primary);
    font-weight: 800;
    border-radius: 10px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-size: 14px;
  }
  .aq-icon {
    position: absolute;
    right: 18px;
    top: 50%;
    transform: translateY(-50%);
    width: 28px;
    height: 28px;
    border-radius: 8px;
    background: var(--primary-soft);
    color: var(--primary);
    font-size: 19px;
    line-height: 1;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-weight: 400;
    transition: background .2s ease, color .2s ease;
  }
  .faq-accordion .accordion-title:hover .aq-icon {
    background: var(--primary);
    color: #fff;
  }
  .faq-accordion .accordion-content {
    border-top: 1px solid var(--border);
    background: #FBFDFE;
    padding: 22px 26px 24px;
    line-height: 1.9;
    color: #42566B;
    font-size: 15px;
    display: none;
  }
  .faq-accordion .accordion-item.is-active .accordion-content {
    display: block;
  }

  /* ========== Support Channels ========== */
  .help-panel {
    overflow: hidden;
  }
  .channel-card {
    background: #fff;
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 28px 24px;
    box-shadow: var(--shadow-sm);
    height: 100%;
  }
  .channel-icon {
    width: 52px;
    height: 52px;
    border-radius: 14px;
    background: var(--primary-soft);
    color: var(--primary);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 18px;
  }
  .channel-icon svg {
    width: 26px;
    height: 26px;
    fill: currentColor;
  }
  .channel-card h3 {
    color: var(--primary-deep);
    font-size: 19px;
    font-weight: 800;
    margin-bottom: 10px;
  }
  .channel-card p {
    color: var(--text-light);
    font-size: 14px;
    line-height: 1.85;
    margin-bottom: 18px;
  }
  .channel-link {
    font-weight: 700;
    font-size: 14px;
    display: inline-flex;
    align-items: center;
    gap: 4px;
  }
  .channel-link::after {
    content: "→";
  }
  .channel-link:hover {
    color: var(--accent);
  }

  /* ========== Final CTA ========== */
  .cta-section {
    padding: 70px 0 86px;
    background: #F7FAFC;
  }
  .cta-box {
    background: linear-gradient(135deg, #0B2B44, #146B9E 75%);
    border-radius: 28px;
    color: #fff;
    padding: clamp(24px, 6vw, 64px);
    text-align: center;
    box-shadow: 0 24px 60px rgba(2, 32, 71, .16);
    position: relative;
    overflow: hidden;
  }
  .cta-box::after {
    content: "";
    position: absolute;
    left: 10%;
    right: 10%;
    bottom: -12px;
    height: 28px;
    border-radius: 50%;
    background: rgba(255, 255, 255, .14);
    filter: blur(14px);
  }
  .cta-box h2 {
    font-size: clamp(26px, 4vw, 36px);
    font-weight: 800;
    margin-bottom: 16px;
    line-height: 1.4;
  }
  .cta-box > p {
    color: rgba(255, 255, 255, .74);
    font-size: 16px;
    max-width: 620px;
    margin: 0 auto 26px;
  }
  .cta-actions {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: 14px;
    margin-bottom: 22px;
  }
  .cta-box .btn-ghost {
    background: rgba(255, 255, 255, .1);
    border-color: rgba(255, 255, 255, .3);
    color: #fff;
  }
  .cta-box .btn-ghost:hover {
    background: rgba(255, 255, 255, .2);
    color: #fff;
    border-color: #fff;
  }
  .cta-help {
    font-size: 12px;
    color: rgba(255, 255, 255, .5);
    margin-top: 8px;
  }

  /* ========== Footer ========== */
  .site-footer {
    background: #0B2B44;
    color: rgba(255, 255, 255, .7);
    padding-top: 72px;
    padding-bottom: 28px;
    font-size: 14px;
    line-height: 1.8;
  }
  .site-footer .container {
    position: relative;
  }
  .site-footer .row {
    display: flex;
    flex-wrap: wrap;
  }
  .site-footer h4 {
    color: #fff;
    font-size: 16px;
    font-weight: 700;
    margin-bottom: 18px;
  }
  .site-footer ul {
    list-style: none;
    margin: 0;
    padding: 0;
  }
  .site-footer ul li {
    margin: 0 0 10px;
  }
  .site-footer a {
    color: rgba(255, 255, 255, .62);
    display: inline-block;
    line-height: 1.7;
  }
  .site-footer a:hover {
    color: #fff;
    text-decoration: none;
  }
  .site-footer .footer-brand p {
    color: rgba(255, 255, 255, .58);
    margin: 16px 0 0;
    max-width: 330px;
    line-height: 1.9;
  }
  .site-footer .brand-name {
    color: #fff;
  }
  .footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, .12);
    margin-top: 36px;
    padding-top: 24px;
    font-size: 13px;
    color: rgba(255, 255, 255, .46);
    text-align: center;
  }
  .footer-bottom p {
    margin: 2px 0;
  }

  /* ========== Responsive ========== */
  @media screen and (max-width: 1024px) {
    .site-nav {
      position: fixed;
      top: 68px;
      left: 0;
      right: 0;
      background: #fff;
      flex-direction: column;
      align-items: stretch;
      padding: 18px 24px 24px;
      border-bottom: 1px solid var(--border);
      box-shadow: 0 24px 40px rgba(2, 32, 71, .12);
      gap: 14px;
      transform: translateY(-14px);
      opacity: 0;
      visibility: hidden;
      transition: opacity .24s ease, transform .24s ease, visibility .24s;
      margin: 0;
      z-index: 90;
    }
    .site-nav.open {
      transform: translateY(0);
      opacity: 1;
      visibility: visible;
    }
    .nav-list,
    .header-cta {
      width: 100%;
    }
    .nav-list {
      flex-direction: column;
      gap: 0;
    }
    .nav-link {
      display: block;
      padding: 13px 12px;
      border-radius: 10px;
      font-size: 15px;
    }
    .nav-link.active::after {
      display: none;
    }
    .nav-link.active {
      background: var(--primary-soft);
    }
    .header-cta {
      justify-content: center;
      margin-top: 8px;
      height: 46px;
      width: 100%;
    }
    .nav-toggle {
      display: inline-flex;
      flex-direction: column;
      justify-content: center;
      align-items: center;
    }
    .quick-grid,
    .workflow-row {
      grid-template-columns: repeat(2, 1fr);
    }
    .step-line {
      grid-template-columns: 1fr;
    }
  }
  @media screen and (max-width: 767px) {
    .site-header {
      height: 64px;
    }
    .header-inner {
      height: 64px;
    }
    .site-nav {
      top: 64px;
    }
    .brand-name {
      font-size: 18px;
    }
    .brand-mark {
      width: 36px;
      height: 36px;
    }
    .page-hero {
      padding: 44px 0 52px;
    }
    .page-hero h1 {
      font-size: 27px;
    }
    .page-hero .lead {
      font-size: 15px;
    }
    .hero-actions {
      align-items: stretch;
      flex-direction: column;
    }
    .hero-actions .btn {
      width: 100%;
    }
    .quick-grid,
    .workflow-row {
      grid-template-columns: 1fr;
    }
    .normal-section {
      padding: 64px 0;
    }
    .section-head {
      margin-bottom: 36px;
    }
    .content-block h2 {
      font-size: 25px;
    }
    .intro-media img {
      height: 240px;
    }
    .flow-panel {
      border-radius: 20px;
    }
    .cta-actions {
      flex-direction: column;
    }
    .cta-actions .btn {
      width: 100%;
    }
    .site-footer {
      padding-top: 56px;
    }
    .footer-bottom {
      text-align: left;
    }
  }