/* roulang page: index */
:root{
  --primary:#1B4D6B;
  --primary-600:#17566B;
  --primary-dark:#123A52;
  --accent:#C98A2E;
  --accent-soft:#EAF2F7;
  --bg:#F7F9FB;
  --white:#FFFFFF;
  --dark:#102A38;
  --text:#1E2A32;
  --muted:#5C6F7B;
  --border:#E4EBF0;
  --radius:14px;
  --radius-sm:10px;
  --shadow-sm:0 2px 6px rgba(16,42,56,.05);
  --shadow-md:0 10px 24px rgba(16,42,56,.10);
  --ease:cubic-bezier(.22,.61,.36,1);
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC",-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;
  font-size:16px;
  line-height:1.75;
  color:var(--text);
  background:var(--bg);
  letter-spacing:0;
}
h1,h2,h3,h4{margin:0;color:var(--primary-dark);letter-spacing:-.01em;font-weight:700;line-height:1.3}
h1{font-size:42px}
h2{font-size:29px}
h3{font-size:20px;font-weight:600}
p{margin:0 0 1.1em}
p:last-child{margin-bottom:0}
a{color:inherit;text-decoration:none;transition:color .2s var(--ease)}
img{max-width:100%;display:block}
ul{margin:0;padding:0;list-style:none}
button,input{font-family:inherit;font-size:inherit}
button{cursor:pointer;border:0;background:none}
:focus-visible{outline:3px solid rgba(201,138,46,.55);outline-offset:2px;border-radius:6px}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 32px}
.section{padding:78px 0}
.section--tight{padding:60px 0}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:34px}
.section-head p{margin:8px 0 0;color:var(--muted);font-size:15px}
.eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:13px;font-weight:600;color:var(--primary);background:var(--accent-soft);border-radius:999px;padding:5px 14px;margin-bottom:14px}
.link-more{font-size:14px;font-weight:600;color:var(--primary);display:inline-flex;align-items:center;gap:6px}
.link-more:hover{color:var(--accent)}
.link-more i{transition:transform .2s var(--ease)}
.link-more:hover i{transform:translateX(3px)}

/* 按钮 */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;height:46px;padding:0 22px;border-radius:var(--radius-sm);font-size:15px;font-weight:600;transition:all .22s var(--ease);border:1px solid transparent}
.btn-primary{background:var(--primary);color:#fff;box-shadow:0 6px 16px rgba(27,77,107,.22)}
.btn-primary:hover{background:var(--primary-dark);transform:translateY(-2px);color:#fff}
.btn-outline{border-color:var(--primary);color:var(--primary);background:transparent}
.btn-outline:hover{background:var(--accent-soft);transform:translateY(-2px)}
.btn-ghost{color:#fff;border-color:rgba(255,255,255,.55)}
.btn-ghost:hover{background:rgba(255,255,255,.14);transform:translateY(-2px);color:#fff}
.btn-accent{background:var(--accent);color:#fff}
.btn-accent:hover{background:#b57a24;transform:translateY(-2px);color:#fff}
.btn-sm{height:38px;padding:0 16px;font-size:14px}

/* 徽章 */
.badge{display:inline-flex;align-items:center;gap:6px;font-size:12px;font-weight:600;line-height:1;padding:6px 11px;border-radius:999px;background:var(--accent-soft);color:var(--primary)}
.badge-accent{background:rgba(201,138,46,.14);color:#9a6a1f}

/* 顶部导航 */
.site-header{position:sticky;top:0;z-index:60;background:rgba(255,255,255,.97);border-bottom:1px solid var(--border);box-shadow:0 1px 3px rgba(16,42,56,.04)}
.header-inner{display:flex;align-items:center;gap:20px;min-height:74px}
.brand{display:flex;align-items:center;gap:10px;flex-shrink:0}
.brand-mark{width:36px;height:36px;border-radius:11px;background:linear-gradient(135deg,var(--primary),var(--primary-600));color:#fff;display:grid;place-items:center;font-size:15px;font-weight:800;letter-spacing:0}
.brand-text{font-size:17px;font-weight:700;color:var(--primary-dark);white-space:nowrap}
.main-nav{display:flex;align-items:center;gap:2px;margin-left:auto}
.nav-link{position:relative;display:inline-flex;align-items:center;gap:6px;padding:9px 13px;border-radius:8px;font-size:15px;color:var(--text);transition:background .2s var(--ease),color .2s var(--ease)}
.nav-link:hover{background:var(--accent-soft);color:var(--primary)}
.nav-link.is-active{color:var(--primary);font-weight:600}
.nav-link.is-active::after{content:"";position:absolute;left:13px;right:13px;bottom:2px;height:2px;background:var(--accent);border-radius:2px}
.nav-mega{position:relative}
.mega-trigger i{font-size:11px;transition:transform .22s var(--ease)}
.nav-mega.is-open .mega-trigger i,
.nav-mega:hover .mega-trigger i{transform:rotate(180deg)}
.nav-mega.is-open .mega-trigger,
.nav-mega:hover .mega-trigger{background:var(--accent-soft);color:var(--primary)}
.mega-panel{position:absolute;right:0;top:calc(100% + 16px);width:740px;background:#fff;border:1px solid var(--border);border-radius:0 0 var(--radius) var(--radius);box-shadow:var(--shadow-md);opacity:0;visibility:hidden;transform:translateY(10px);transition:all .24s var(--ease);overflow:hidden}
.mega-panel::before{content:"";display:block;height:3px;background:linear-gradient(90deg,var(--primary),var(--accent))}
.nav-mega:hover .mega-panel,
.nav-mega.is-open .mega-panel{opacity:1;visibility:visible;transform:translateY(0)}
.mega-inner{display:grid;grid-template-columns:1fr 1fr 1.05fr}
.mega-col{padding:22px 20px;border-right:1px solid var(--border)}
.mega-col:last-child{border-right:0}
.mega-title{font-size:13px;font-weight:700;color:var(--muted);letter-spacing:.04em;margin-bottom:14px}
.mega-list li+li{margin-top:4px}
.mega-list a{display:flex;align-items:center;justify-content:space-between;gap:10px;padding:8px 10px;border-radius:8px;font-size:14px;border-left:2px solid transparent}
.mega-list a:hover{background:var(--accent-soft);color:var(--primary);border-left-color:var(--primary)}
.mega-list .count{font-size:12px;color:var(--muted)}
.mega-post{display:block;padding:8px 10px;border-radius:8px;border-left:2px solid transparent}
.mega-post:hover{background:var(--accent-soft);border-left-color:var(--primary)}
.mega-post strong{display:block;font-size:14px;font-weight:600;color:var(--text);overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.mega-post span{font-size:12px;color:var(--muted)}
.mega-card{display:block;border:1px solid var(--border);border-radius:12px;overflow:hidden;transition:all .22s var(--ease)}
.mega-card:hover{box-shadow:var(--shadow-md);transform:translateY(-2px)}
.mega-card .thumb{aspect-ratio:16/9;overflow:hidden}
.mega-card .thumb img{width:100%;height:100%;object-fit:cover}
.mega-card .body{padding:12px 14px 14px}
.mega-card .body span{font-size:12px;color:var(--accent);font-weight:600}
.mega-card .body strong{display:block;font-size:14px;margin-top:4px;color:var(--primary-dark)}
.nav-toggle{display:none;margin-left:auto;width:44px;height:44px;border-radius:10px;border:1px solid var(--border);color:var(--primary);align-items:center;justify-content:center;font-size:17px;background:#fff}
.nav-toggle:hover{background:var(--accent-soft)}

/* Hero */
.hero{position:relative;color:#fff;background:linear-gradient(115deg,rgba(16,42,56,.94) 12%,rgba(23,86,107,.80) 62%,rgba(27,77,107,.62) 100%),url('/assets/images/backpic/back-1.webp') center/cover no-repeat;padding:74px 0 78px}
.hero-grid{display:grid;grid-template-columns:1.08fr .92fr;gap:48px;align-items:center}
.hero .eyebrow{background:rgba(255,255,255,.14);color:#F2D9A8}
.hero h1{color:#fff;font-size:42px;line-height:1.24;margin-bottom:18px}
.hero-sub{font-size:17px;color:rgba(255,255,255,.86);max-width:560px;margin-bottom:28px}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:34px}
.hero-stats{display:flex;flex-wrap:wrap;gap:14px 34px;padding-top:24px;border-top:1px solid rgba(255,255,255,.18)}
.hero-stat strong{display:block;font-size:15px;font-weight:600;color:#fff}
.hero-stat span{font-size:13px;color:rgba(255,255,255,.7)}
.hero-media{position:relative;border-radius:18px;overflow:hidden;aspect-ratio:4/3;box-shadow:0 22px 48px rgba(6,20,28,.42);border:1px solid rgba(255,255,255,.16)}
.hero-media img{width:100%;height:100%;object-fit:cover}
.hero-media .tag-float{position:absolute;left:16px;bottom:16px;background:rgba(16,42,56,.82);color:#fff;font-size:13px;font-weight:600;padding:8px 14px;border-radius:999px;backdrop-filter:blur(4px)}

/* 分类快递 */
.quick-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.quick-card{display:block;background:#fff;border:1px solid var(--border);border-radius:var(--radius);padding:22px;box-shadow:var(--shadow-sm);transition:all .24s var(--ease)}
.quick-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-md);border-color:#cfdde6}
.quick-icon{width:44px;height:44px;border-radius:12px;display:grid;place-items:center;background:var(--accent-soft);color:var(--primary);font-size:18px;margin-bottom:14px}
.quick-card h3{font-size:17px;margin-bottom:8px}
.quick-card p{font-size:14px;color:var(--muted);margin:0}
.quick-card .arrow{margin-top:14px;font-size:13px;font-weight:600;color:var(--primary);display:inline-flex;align-items:center;gap:6px}

/* 热门入口卡片 */
.chips{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:30px}
.chip{font-size:13px;font-weight:600;color:var(--muted);border:1px solid var(--border);background:#fff;border-radius:999px;padding:7px 16px;transition:all .2s var(--ease)}
.chip:hover,.chip.is-on{color:var(--primary);border-color:#b9d2e0;background:var(--accent-soft)}
.card-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.p-card{display:flex;flex-direction:column;background:#fff;border:1px solid var(--border);border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow-sm);transition:all .24s var(--ease)}
.p-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-md)}
.p-media{position:relative;aspect-ratio:16/10;overflow:hidden;background:var(--accent-soft)}
.p-media img{width:100%;height:100%;object-fit:cover;transition:transform .5s var(--ease)}
.p-card:hover .p-media img{transform:scale(1.05)}
.p-media .badge{position:absolute;left:14px;top:14px;background:rgba(255,255,255,.94);color:var(--primary);box-shadow:var(--shadow-sm)}
.p-body{padding:20px 22px 22px;display:flex;flex-direction:column;flex:1}
.p-body h3{font-size:18px;margin-bottom:8px}
.p-body .desc{font-size:14px;color:var(--muted);margin:0 0 16px}
.p-meta{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-top:auto;padding-top:16px;border-top:1px dashed var(--border)}
.p-meta .spec{font-size:13px;color:var(--muted)}
.p-meta .spec i{color:var(--accent);margin-right:6px}

/* 评价 */
.review-wrap{position:relative}
.review-track{display:flex;gap:20px;overflow-x:auto;scroll-snap-type:x mandatory;padding:4px 4px 16px;scrollbar-width:thin}
.review-track::-webkit-scrollbar{height:6px}
.review-track::-webkit-scrollbar-thumb{background:#c9d8e2;border-radius:999px}
.review-card{position:relative;flex:0 0 340px;scroll-snap-align:start;background:#fff;border:1px solid var(--border);border-radius:var(--radius);padding:26px 24px 22px;box-shadow:var(--shadow-sm)}
.review-card::before{content:"\201C";position:absolute;right:20px;top:6px;font-size:64px;line-height:1;color:rgba(201,138,46,.16);font-family:Georgia,serif}
.review-stars{color:var(--accent);font-size:13px;letter-spacing:2px;margin-bottom:12px}
.review-card p{font-size:15px;color:var(--text);margin:0 0 18px}
.review-user{display:flex;align-items:center;gap:12px}
.avatar{width:38px;height:38px;border-radius:50%;background:var(--accent-soft);color:var(--primary);display:grid;place-items:center;font-weight:700;font-size:14px}
.review-user strong{display:block;font-size:14px}
.review-user span{font-size:12px;color:var(--muted)}
.review-arrows{display:flex;gap:10px}
.arrow-btn{width:42px;height:42px;border-radius:50%;border:1px solid var(--border);background:#fff;color:var(--primary);display:grid;place-items:center;transition:all .2s var(--ease)}
.arrow-btn:hover{background:var(--primary);color:#fff;border-color:var(--primary)}

/* 保障条 */
.assure{background:var(--accent-soft);border-top:1px solid var(--border);border-bottom:1px solid var(--border)}
.assure-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;padding:38px 0}
.assure-item{display:flex;align-items:flex-start;gap:14px}
.assure-item i{font-size:20px;color:var(--primary);margin-top:3px}
.assure-item strong{display:block;font-size:15px;color:var(--primary-dark)}
.assure-item span{font-size:13px;color:var(--muted)}

/* 最新信息 */
.news-layout{display:grid;grid-template-columns:1.12fr 1fr;gap:24px}
.news-feature{display:flex;flex-direction:column;background:#fff;border:1px solid var(--border);border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow-sm);transition:all .24s var(--ease)}
.news-feature:hover{transform:translateY(-3px);box-shadow:var(--shadow-md)}
.news-feature .thumb{aspect-ratio:16/9;overflow:hidden;background:var(--accent-soft)}
.news-feature .thumb img{width:100%;height:100%;object-fit:cover;transition:transform .5s var(--ease)}
.news-feature:hover .thumb img{transform:scale(1.04)}
.news-feature .body{padding:22px 24px 24px}
.news-feature h3{font-size:21px;margin:12px 0 10px}
.news-feature p{font-size:14.5px;color:var(--muted);margin:0}
.news-side{display:flex;flex-direction:column;gap:16px}
.news-item{display:block;background:#fff;border:1px solid var(--border);border-radius:12px;padding:18px 20px;box-shadow:var(--shadow-sm);transition:all .22s var(--ease)}
.news-item:hover{transform:translateY(-2px);box-shadow:var(--shadow-md);border-color:#cfdde6}
.news-item h3{font-size:16px;margin-bottom:8px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.news-item p{font-size:13.5px;color:var(--muted);margin:0 0 12px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.news-meta{display:flex;align-items:center;gap:12px;font-size:12.5px;color:var(--muted)}
.news-empty{background:#fff;border:1px dashed var(--border);border-radius:var(--radius);padding:46px 28px;text-align:center}
.news-empty p{color:var(--muted);margin-bottom:18px}

/* FAQ */
.faq-list{max-width:900px;margin:0 auto}
.faq-item{background:#fff;border:1px solid var(--border);border-radius:12px;margin-bottom:14px;overflow:hidden;transition:box-shadow .2s var(--ease)}
.faq-item:hover{box-shadow:var(--shadow-sm)}
.faq-item summary{list-style:none;cursor:pointer;display:flex;align-items:center;justify-content:space-between;gap:18px;padding:20px 24px;font-size:16px;font-weight:600;color:var(--primary-dark)}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary i{color:var(--accent);font-size:14px;transition:transform .24s var(--ease);flex-shrink:0}
.faq-item[open] summary i{transform:rotate(45deg)}
.faq-body{padding:0 24px 22px;color:var(--muted);font-size:15px;border-top:1px solid var(--border);margin-top:0;padding-top:18px;background:#FBFCFD}

/* CTA 带 */
.cta-band{background:linear-gradient(115deg,var(--primary) 0%,var(--primary-dark) 100%);border-radius:20px;padding:46px 44px;color:#fff;display:flex;align-items:center;justify-content:space-between;gap:34px;box-shadow:0 18px 40px rgba(16,42,56,.20)}
.cta-band h2{color:#fff;font-size:27px;margin-bottom:10px}
.cta-band p{color:rgba(255,255,255,.82);font-size:15px;margin:0;max-width:620px}
.cta-band .actions{display:flex;gap:14px;flex-wrap:wrap;flex-shrink:0}

/* 图文说明 */
.split{display:grid;grid-template-columns:1fr 1fr;gap:46px;align-items:center}
.split .media{border-radius:var(--radius);overflow:hidden;aspect-ratio:16/11;box-shadow:var(--shadow-md)}
.split .media img{width:100%;height:100%;object-fit:cover}
.step-list li{display:flex;gap:16px;padding:16px 0;border-bottom:1px solid var(--border)}
.step-list li:last-child{border-bottom:0}
.step-num{flex-shrink:0;width:34px;height:34px;border-radius:10px;background:var(--accent-soft);color:var(--primary);display:grid;place-items:center;font-weight:700;font-size:14px}
.step-list strong{display:block;font-size:15.5px;color:var(--primary-dark);margin-bottom:4px}
.step-list span{font-size:14px;color:var(--muted)}

/* 页脚 */
.site-footer{background:var(--dark);color:rgba(255,255,255,.74);padding:62px 0 0;margin-top:0}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.3fr;gap:38px;padding-bottom:46px}
.site-footer h4{color:#fff;font-size:14px;font-weight:700;margin-bottom:18px;padding-left:12px;position:relative}
.site-footer h4::before{content:"";position:absolute;left:0;top:5px;width:3px;height:14px;background:var(--accent);border-radius:2px}
.site-footer p{font-size:14px;line-height:1.85;margin:0}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px}
.footer-brand .brand-mark{background:linear-gradient(135deg,var(--primary),var(--primary-600))}
.footer-brand strong{color:#fff;font-size:16px}
.footer-links li+li{margin-top:10px}
.footer-links a{font-size:14px;transition:color .2s var(--ease)}
.footer-links a:hover{color:var(--accent)}
.subscribe-form{display:flex;gap:10px;margin-top:16px}
.subscribe-form input{flex:1;min-width:0;height:44px;border-radius:8px;border:1px solid rgba(255,255,255,.18);background:rgba(255,255,255,.07);color:#fff;padding:0 14px;font-size:14px}
.subscribe-form input::placeholder{color:rgba(255,255,255,.45)}
.subscribe-form input:focus{outline:none;border-color:var(--accent);box-shadow:0 0 0 3px rgba(201,138,46,.22)}
.subscribe-form button{height:44px;padding:0 18px;border-radius:8px;background:var(--accent);color:#fff;font-weight:600;font-size:14px;transition:all .2s var(--ease)}
.subscribe-form button:hover{background:#b57a24}
.form-note{font-size:12.5px;color:rgba(255,255,255,.5);margin-top:10px;min-height:18px}
.footer-bottom{border-top:1px solid rgba(255,255,255,.10);padding:20px 0;display:flex;align-items:center;justify-content:space-between;gap:16px;font-size:13px;flex-wrap:wrap}
.footer-bottom a{color:rgba(255,255,255,.7)}
.footer-bottom a:hover{color:var(--accent)}

/* 响应式 */
@media (max-width:1199px){
  h1{font-size:38px}
  .hero h1{font-size:36px}
  .quick-grid{grid-template-columns:repeat(2,1fr)}
  .mega-panel{width:660px}
}
@media (max-width:991px){
  .nav-toggle{display:inline-flex}
  .main-nav{position:fixed;left:0;right:0;top:74px;bottom:0;background:#fff;flex-direction:column;align-items:stretch;gap:4px;margin-left:0;padding:18px 20px 40px;overflow-y:auto;transform:translateX(-102%);transition:transform .28s var(--ease);box-shadow:var(--shadow-md)}
  .site-header.nav-open .main-nav{transform:translateX(0)}
  .nav-link{width:100%;justify-content:space-between;padding:13px 14px;font-size:16px;border-radius:10px}
  .nav-link.is-active::after{display:none}
  .nav-link.is-active{background:var(--accent-soft)}
  .nav-mega{width:100%}
  .mega-panel{position:static;width:auto;opacity:1;visibility:visible;transform:none;box-shadow:none;border:0;border-radius:12px;background:var(--bg);display:none;margin-top:6px}
  .nav-mega:hover .mega-panel{display:none}
  .nav-mega.is-open .mega-panel{display:block}
  .mega-inner{grid-template-columns:1fr}
  .mega-col{border-right:0;border-bottom:1px solid var(--border);padding:16px}
  .mega-col:last-child{border-bottom:0}
  .hero-grid{grid-template-columns:1fr;gap:34px}
  .hero-media{order:-1;aspect-ratio:16/10}
  .card-grid{grid-template-columns:repeat(2,1fr)}
  .news-layout{grid-template-columns:1fr}
  .split{grid-template-columns:1fr;gap:30px}
  .assure-grid{grid-template-columns:repeat(2,1fr);gap:20px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
  .cta-band{flex-direction:column;align-items:flex-start;padding:38px 30px}
  .section{padding:62px 0}
}
@media (max-width:767px){
  .container{padding:0 20px}
  h1{font-size:30px}
  h2{font-size:23px}
  .hero{padding:52px 0 58px}
  .hero h1{font-size:28px}
  .hero-sub{font-size:15.5px}
  .hero-stats{gap:14px 24px}
  .section{padding:48px 0}
  .section-head{flex-direction:column;align-items:flex-start;gap:10px;margin-bottom:26px}
  .quick-grid,.card-grid{grid-template-columns:1fr}
  .review-card{flex:0 0 82%}
  .assure-grid{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .cta-band h2{font-size:22px}
  .btn{width:100%}
  .hero-actions .btn,
  .cta-band .actions .btn{width:100%}
  .cta-band .actions{width:100%}
  .subscribe-form{flex-direction:column}
  .subscribe-form button{width:100%}
  .footer-bottom{flex-direction:column;align-items:flex-start}
}
@media (max-width:520px){
  .brand-text{font-size:15px}
  .hero h1{font-size:25px}
  .p-body{padding:18px 18px 20px}
  .news-feature .body{padding:18px}
}

/* roulang page: article */
:root{
  --primary:#1B4D6B;
  --primary-dark:#143B52;
  --primary-deep:#102A38;
  --primary-light:#EAF2F7;
  --accent:#C98A2E;
  --accent-light:#FBF3E6;
  --bg:#F7F9FB;
  --card:#FFFFFF;
  --text:#1B2A32;
  --muted:#5F7480;
  --border:#E4EBF0;
  --radius-xs:8px;
  --radius:14px;
  --radius-lg:20px;
  --shadow-sm:0 2px 6px rgba(16,42,56,.05);
  --shadow-md:0 10px 24px rgba(16,42,56,.10);
  --shadow-lg:0 20px 48px rgba(16,42,56,.14);
  --container:1200px;
  --section-y:80px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC",-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,sans-serif;
  font-size:16px;
  line-height:1.75;
  letter-spacing:0;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;}
a{color:var(--primary);text-decoration:none;transition:color .2s ease,background-color .2s ease,border-color .2s ease;}
a:hover{color:var(--primary-dark);}
button{font-family:inherit;cursor:pointer;border:0;background:none;}
input,textarea,select{font-family:inherit;font-size:15px;color:var(--text);}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4{margin:0;font-weight:700;letter-spacing:-0.01em;line-height:1.35;color:var(--text);}
p{margin:0;}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px;}
.container{
  width:100%;
  max-width:var(--container);
  margin:0 auto;
  padding:0 32px;
}
.section{padding:var(--section-y) 0;}
.section-sm{padding:56px 0;}
.section-head{
  display:flex;
  align-items:flex-end;
  justify-content:space-between;
  gap:20px;
  margin-bottom:32px;
}
.section-head h2{font-size:29px;}
.section-head p{color:var(--muted);font-size:15px;margin-top:8px;}
.section-more{font-size:14px;font-weight:600;white-space:nowrap;}

/* 按钮 */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  padding:12px 24px;
  font-size:15px;
  font-weight:600;
  border-radius:10px;
  border:1px solid transparent;
  transition:transform .18s ease,background-color .18s ease,color .18s ease,border-color .18s ease,box-shadow .18s ease;
}
.btn-primary{background:var(--primary);color:#fff;box-shadow:var(--shadow-sm);}
.btn-primary:hover{background:var(--primary-dark);color:#fff;transform:translateY(-2px);box-shadow:var(--shadow-md);}
.btn-outline{border-color:var(--primary);color:var(--primary);background:transparent;}
.btn-outline:hover{background:var(--primary-light);color:var(--primary-dark);transform:translateY(-2px);}
.btn-ghost{background:#fff;color:var(--primary);border-color:var(--border);}
.btn-ghost:hover{background:var(--primary-light);border-color:var(--primary);color:var(--primary-dark);}
.btn-sm{padding:9px 16px;font-size:14px;border-radius:9px;}
.btn-block{width:100%;}

/* 徽章 / 标签 */
.badge{
  display:inline-flex;
  align-items:center;
  gap:6px;
  padding:4px 12px;
  font-size:12px;
  font-weight:600;
  border-radius:999px;
  background:var(--primary-light);
  color:var(--primary-dark);
  line-height:1.6;
}
.badge-accent{background:var(--accent-light);color:#8C5F14;}
.badge-outline{background:#fff;border:1px solid var(--border);color:var(--muted);font-weight:500;}
.tag{
  display:inline-flex;
  align-items:center;
  padding:6px 14px;
  font-size:13px;
  border-radius:999px;
  background:#fff;
  border:1px solid var(--border);
  color:var(--muted);
}
.tag:hover{border-color:var(--primary);color:var(--primary);background:var(--primary-light);}

/* 头部导航 */
.site-header{
  position:sticky;
  top:0;
  z-index:100;
  background:#fff;
  border-bottom:1px solid var(--border);
  box-shadow:0 1px 0 rgba(16,42,56,.02);
}
.header-inner{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:24px;
  min-height:70px;
}
.brand{display:inline-flex;align-items:center;gap:10px;flex-shrink:0;}
.brand-mark{
  width:34px;
  height:34px;
  border-radius:10px;
  background:linear-gradient(135deg,var(--primary),var(--primary-deep));
  color:#fff;
  font-weight:700;
  font-size:17px;
  display:inline-flex;
  align-items:center;
  justify-content:center;
  letter-spacing:0;
}
.brand-text{font-size:17px;font-weight:700;color:var(--text);letter-spacing:-0.01em;}
.brand:hover .brand-text{color:var(--primary);}
.main-nav{display:flex;align-items:center;gap:4px;flex-wrap:wrap;}
.nav-link{
  position:relative;
  display:inline-flex;
  align-items:center;
  gap:6px;
  padding:9px 13px;
  font-size:15px;
  font-weight:500;
  color:#33474F;
  border-radius:var(--radius-xs);
  transition:color .2s ease,background-color .2s ease;
}
.nav-link:hover{color:var(--primary);background:var(--primary-light);}
.nav-link.is-active{color:var(--primary);font-weight:600;background:var(--primary-light);}
.nav-link.is-active::after{
  content:"";
  position:absolute;
  left:13px;
  right:13px;
  bottom:3px;
  height:2px;
  border-radius:2px;
  background:var(--primary);
}
.nav-toggle{
  display:none;
  width:42px;
  height:42px;
  border-radius:10px;
  border:1px solid var(--border);
  color:var(--primary);
  font-size:17px;
  align-items:center;
  justify-content:center;
}
.nav-toggle:hover{background:var(--primary-light);border-color:var(--primary);}

/* Mega 面板 */
.nav-mega{position:relative;}
.mega-trigger{background:transparent;}
.mega-trigger i{font-size:11px;transition:transform .2s ease;}
.nav-mega.is-open .mega-trigger{color:var(--primary);background:var(--primary-light);}
.nav-mega.is-open .mega-trigger i{transform:rotate(180deg);}
.mega-panel{
  position:absolute;
  top:calc(100% + 12px);
  right:0;
  width:760px;
  background:#fff;
  border:1px solid var(--border);
  border-radius:0 0 var(--radius) var(--radius);
  box-shadow:var(--shadow-lg);
  opacity:0;
  visibility:hidden;
  transform:translateY(8px);
  transition:opacity .2s ease,transform .2s ease,visibility .2s ease;
  overflow:hidden;
}
.mega-panel::before{
  content:"";
  display:block;
  height:3px;
  background:linear-gradient(90deg,var(--primary),var(--accent));
}
.nav-mega:hover .mega-panel,
.nav-mega:focus-within .mega-panel,
.nav-mega.is-open .mega-panel{opacity:1;visibility:visible;transform:translateY(0);}
.mega-inner{display:grid;grid-template-columns:1fr 1fr 1.1fr;}
.mega-col{padding:22px 22px 24px;}
.mega-col + .mega-col{border-left:1px solid var(--border);}
.mega-title{font-size:13px;font-weight:700;color:var(--muted);letter-spacing:.04em;margin-bottom:14px;}
.mega-list li + li{margin-top:2px;}
.mega-list a{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:10px;
  padding:8px 10px;
  font-size:14px;
  color:#33474F;
  border-radius:var(--radius-xs);
  border-left:2px solid transparent;
}
.mega-list a:hover{background:var(--primary-light);color:var(--primary);border-left-color:var(--primary);}
.mega-list .count{font-size:12px;color:var(--muted);}
.mega-post{display:block;padding:9px 10px;border-radius:var(--radius-xs);}
.mega-post + .mega-post{margin-top:4px;}
.mega-post strong{display:block;font-size:14px;font-weight:600;color:var(--text);line-height:1.5;}
.mega-post span{font-size:12px;color:var(--muted);}
.mega-post:hover{background:var(--primary-light);}
.mega-post:hover strong{color:var(--primary);}
.mega-card{
  display:block;
  border:1px solid var(--border);
  border-radius:var(--radius);
  overflow:hidden;
  background:#fff;
  transition:box-shadow .2s ease,transform .2s ease;
}
.mega-card:hover{box-shadow:var(--shadow-md);transform:translateY(-2px);}
.mega-card-media{display:block;aspect-ratio:16/10;overflow:hidden;background:var(--primary-light);}
.mega-card-media img{width:100%;height:100%;object-fit:cover;}
.mega-card-tag{display:inline-block;margin:12px 14px 0;font-size:12px;color:#8C5F14;background:var(--accent-light);padding:3px 10px;border-radius:999px;}
.mega-card-link{display:flex;align-items:center;gap:8px;padding:8px 14px 14px;font-size:13px;font-weight:600;color:var(--primary);}

/* 面包屑 */
.crumb-bar{background:#fff;border-bottom:1px solid var(--border);}
.crumb{
  display:flex;
  align-items:center;
  gap:8px;
  flex-wrap:wrap;
  padding:14px 0;
  font-size:13px;
  color:var(--muted);
}
.crumb a{color:var(--muted);}
.crumb a:hover{color:var(--primary);}
.crumb .sep{color:#B9C7D0;}
.crumb .current{
  max-width:520px;
  overflow:hidden;
  text-overflow:ellipsis;
  white-space:nowrap;
  color:var(--text);
  font-weight:600;
}

/* 文章头部 */
.article-hero{background:#fff;border-bottom:1px solid var(--border);padding:44px 0 40px;}
.article-hero-inner{max-width:800px;margin:0 auto;}
.article-hero h1{font-size:38px;line-height:1.3;margin:16px 0 18px;}
.article-meta{
  display:flex;
  align-items:center;
  flex-wrap:wrap;
  gap:10px 20px;
  font-size:14px;
  color:var(--muted);
}
.article-meta .meta-item{display:inline-flex;align-items:center;gap:7px;}
.article-meta .meta-item i{color:var(--primary);font-size:13px;}

/* 正文阅读区 */
.article-main{padding:56px 0 24px;}
.article-shell{max-width:780px;margin:0 auto;}
.article-lead-line{
  display:flex;
  align-items:center;
  gap:12px;
  margin-bottom:26px;
  font-size:13px;
  color:var(--muted);
}
.article-lead-line::after{content:"";flex:1;height:1px;background:var(--border);}
.article-body{
  background:#fff;
  border:1px solid var(--border);
  border-radius:var(--radius-lg);
  padding:42px 44px;
  box-shadow:var(--shadow-sm);
  font-size:17px;
  line-height:1.85;
  color:#2B3C45;
}
.article-body > *:first-child{margin-top:0;}
.article-body > *:last-child{margin-bottom:0;}
.article-body p{margin:0 0 1.1em;}
.article-body > p:first-of-type{
  border-left:3px solid var(--accent);
  padding-left:16px;
  color:#223640;
  font-weight:500;
}
.article-body h2{
  font-size:27px;
  margin:1.7em 0 .7em;
  padding-bottom:12px;
  border-bottom:1px solid var(--border);
}
.article-body h3{font-size:20px;margin:1.5em 0 .6em;color:var(--primary-dark);}
.article-body h4{font-size:17px;margin:1.3em 0 .5em;}
.article-body ul,.article-body ol{margin:0 0 1.2em;padding-left:1.35em;list-style:disc;}
.article-body ol{list-style:decimal;}
.article-body li{margin-bottom:.5em;}
.article-body li::marker{color:var(--primary);}
.article-body a{color:var(--primary);font-weight:600;border-bottom:1px solid rgba(27,77,107,.28);}
.article-body a:hover{color:var(--accent);border-bottom-color:var(--accent);}
.article-body blockquote{
  margin:1.5em 0;
  padding:18px 22px;
  background:var(--primary-light);
  border-left:4px solid var(--primary);
  border-radius:0 var(--radius) var(--radius) 0;
  color:var(--primary-dark);
}
.article-body blockquote p:last-child{margin-bottom:0;}
.article-body img{border-radius:var(--radius);margin:1.4em 0;width:100%;height:auto;}
.article-body figure{margin:1.5em 0;}
.article-body figcaption{font-size:13px;color:var(--muted);text-align:center;margin-top:8px;}
.article-body code{
  background:#F2F5F8;
  border:1px solid var(--border);
  border-radius:6px;
  padding:2px 6px;
  font-size:14px;
  color:var(--primary-dark);
  font-family:"SFMono-Regular",Consolas,"Liberation Mono",Menlo,monospace;
}
.article-body pre{
  background:var(--primary-deep);
  color:#DCE7EE;
  padding:18px 20px;
  border-radius:var(--radius);
  overflow-x:auto;
  font-size:14px;
  line-height:1.7;
  margin:1.5em 0;
}
.article-body pre code{background:none;border:0;color:inherit;padding:0;}
.article-body table{width:100%;border-collapse:collapse;margin:1.5em 0;font-size:15px;}
.article-body th,.article-body td{border:1px solid var(--border);padding:11px 14px;text-align:left;}
.article-body th{background:var(--primary-light);color:var(--primary-dark);font-weight:600;}
.article-body hr{border:0;border-top:1px solid var(--border);margin:2em 0;}

.article-empty{
  background:#fff;
  border:1px solid var(--border);
  border-radius:var(--radius-lg);
  padding:56px 44px;
  text-align:center;
  box-shadow:var(--shadow-sm);
}
.article-empty h2{font-size:24px;margin-bottom:12px;}
.article-empty p{color:var(--muted);margin-bottom:24px;}

/* 标签与翻页 */
.article-foot{padding:36px 0 0;}
.tags-row{display:flex;flex-wrap:wrap;align-items:center;gap:10px;}
.tags-label{font-size:13px;font-weight:700;color:var(--muted);margin-right:4px;}
.post-nav{
  display:grid;
  grid-template-columns:repeat(2,minmax(0,1fr));
  gap:20px;
  margin-top:34px;
}
.post-nav-card{
  display:block;
  background:#fff;
  border:1px solid var(--border);
  border-radius:var(--radius);
  padding:20px 22px;
  box-shadow:var(--shadow-sm);
  transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.post-nav-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-md);border-color:#CBDCE6;}
.post-nav-label{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--muted);margin-bottom:8px;}
.post-nav-card strong{font-size:16px;color:var(--text);line-height:1.5;}
.post-nav-card:hover strong{color:var(--primary);}
.post-nav-card.is-next{text-align:right;}
.post-nav-card.is-next .post-nav-label{justify-content:flex-end;}
.back-row{margin-top:30px;text-align:center;}

/* 相关推荐卡片 */
.grid-3{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px;}
.card{
  background:#fff;
  border:1px solid var(--border);
  border-radius:var(--radius);
  overflow:hidden;
  box-shadow:var(--shadow-sm);
  transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
  display:flex;
  flex-direction:column;
}
.card:hover{transform:translateY(-2px);box-shadow:var(--shadow-md);border-color:#CBDCE6;}
.card-media{position:relative;aspect-ratio:16/9;overflow:hidden;background:var(--primary-light);}
.card-media img{width:100%;height:100%;object-fit:cover;transition:transform .4s ease;}
.card:hover .card-media img{transform:scale(1.04);}
.card-media .badge{position:absolute;left:14px;top:14px;background:rgba(255,255,255,.94);}
.card-body{padding:20px 22px 22px;display:flex;flex-direction:column;flex:1;}
.card-body h3{font-size:17px;line-height:1.5;margin-bottom:10px;}
.card-body h3 a{color:var(--text);}
.card-body h3 a:hover{color:var(--primary);}
.card-body p{font-size:14px;color:var(--muted);line-height:1.7;margin-bottom:16px;}
.card-foot{
  margin-top:auto;
  display:flex;
  align-items:center;
  justify-content:space-between;
  font-size:13px;
  color:var(--muted);
  border-top:1px solid var(--border);
  padding-top:14px;
}

/* CTA 区块 */
.cta-band{padding:0 0 var(--section-y);}
.cta-card{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:28px;
  background:var(--primary-light);
  border:1px solid #D6E4EE;
  border-radius:var(--radius-lg);
  padding:38px 42px;
}
.cta-card h2{font-size:25px;margin-bottom:10px;}
.cta-card p{color:#425B69;font-size:15px;max-width:620px;}
.cta-actions{display:flex;gap:14px;flex-wrap:wrap;flex-shrink:0;}

/* 页脚 */
.site-footer{background:var(--primary-deep);color:#C4D3DC;padding:64px 0 0;margin-top:24px;}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.4fr;gap:36px;}
.site-footer h4{color:#fff;font-size:14px;font-weight:700;margin-bottom:16px;letter-spacing:.02em;}
.site-footer h4::before{content:"—";color:var(--accent);margin-right:8px;}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px;}
.footer-brand strong{color:#fff;font-size:16px;}
.site-footer p{font-size:14px;line-height:1.8;color:#9FB4C0;}
.footer-links li{margin-bottom:10px;}
.footer-links a{font-size:14px;color:#C4D3DC;}
.footer-links a:hover{color:var(--accent);}
.subscribe-form{display:flex;gap:8px;margin-bottom:10px;}
.subscribe-form input{
  flex:1;
  min-width:0;
  height:44px;
  padding:0 14px;
  border-radius:var(--radius-xs);
  border:1px solid rgba(255,255,255,.16);
  background:rgba(255,255,255,.06);
  color:#EAF2F7;
}
.subscribe-form input::placeholder{color:#8CA3B1;}
.subscribe-form input:focus{outline:none;border-color:var(--accent);box-shadow:0 0 0 3px rgba(201,138,46,.22);}
.subscribe-form button{
  height:44px;
  padding:0 18px;
  border-radius:var(--radius-xs);
  background:var(--accent);
  color:#2A1B04;
  font-weight:700;
  font-size:14px;
  transition:background-color .2s ease,transform .18s ease;
}
.subscribe-form button:hover{background:#D79A3C;transform:translateY(-1px);}
.form-note{font-size:12.5px;color:#8CA3B1;line-height:1.7;}
.footer-bottom{
  margin-top:48px;
  border-top:1px solid rgba(255,255,255,.1);
  padding:22px 0;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  font-size:13px;
  color:#8CA3B1;
}

/* 响应式 */
@media (max-width:1199px){
  :root{--section-y:64px;}
  .article-hero h1{font-size:34px;}
  .article-body{padding:36px 34px;}
  .mega-panel{width:680px;}
}
@media (max-width:991px){
  .container{padding:0 22px;}
  .nav-toggle{display:inline-flex;}
  .main-nav{
    position:absolute;
    left:0;
    right:0;
    top:100%;
    display:none;
    flex-direction:column;
    align-items:stretch;
    gap:2px;
    background:#fff;
    border-bottom:1px solid var(--border);
    box-shadow:var(--shadow-md);
    padding:14px 22px 22px;
    max-height:calc(100vh - 70px);
    overflow-y:auto;
  }
  .main-nav.is-open{display:flex;}
  .nav-link{justify-content:space-between;padding:12px 12px;}
  .nav-link.is-active::after{display:none;}
  .nav-mega{width:100%;}
  .mega-trigger{width:100%;}
  .mega-panel{
    position:static;
    width:100%;
    opacity:1;
    visibility:visible;
    transform:none;
    display:none;
    box-shadow:none;
    border-radius:var(--radius);
    margin-top:6px;
  }
  .nav-mega.is-open .mega-panel{display:block;}
  .mega-inner{grid-template-columns:1fr;}
  .mega-col + .mega-col{border-left:0;border-top:1px solid var(--border);}
  .grid-3{grid-template-columns:repeat(2,minmax(0,1fr));}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px;}
  .cta-card{flex-direction:column;align-items:flex-start;padding:32px 28px;}
  .header-inner{position:relative;}
}
@media (max-width:767px){
  :root{--section-y:48px;}
  .article-hero{padding:32px 0 28px;}
  .article-hero h1{font-size:27px;}
  .article-body{padding:26px 20px;font-size:16px;border-radius:var(--radius);}
  .article-body h2{font-size:22px;}
  .article-body h3{font-size:18px;}
  .section-head{flex-direction:column;align-items:flex-start;gap:8px;}
  .section-head h2{font-size:24px;}
  .grid-3{grid-template-columns:1fr;}
  .post-nav{grid-template-columns:1fr;}
  .post-nav-card.is-next{text-align:left;}
  .post-nav-card.is-next .post-nav-label{justify-content:flex-start;}
  .crumb .current{max-width:200px;}
  .footer-grid{grid-template-columns:1fr;}
  .footer-bottom{flex-direction:column;align-items:flex-start;gap:8px;}
  .subscribe-form{flex-direction:column;}
  .subscribe-form button{width:100%;}
}
@media (max-width:520px){
  .container{padding:0 16px;}
  .brand-text{font-size:15px;}
  .article-hero h1{font-size:24px;}
  .cta-card{padding:26px 20px;}
  .cta-actions{width:100%;}
  .cta-actions .btn{width:100%;}
}

/* roulang page: category1 */
:root{
  --primary:#17566B;
  --primary-dark:#102A38;
  --primary-deep:#0C1F2B;
  --primary-soft:#EAF2F7;
  --primary-soft-2:#DCEAF2;
  --accent:#C98A2E;
  --accent-soft:#F7EEDD;
  --bg:#F7F9FB;
  --card:#FFFFFF;
  --border:#E4EBF0;
  --text:#1B2A33;
  --muted:#64788A;
  --radius:14px;
  --radius-sm:10px;
  --shadow-sm:0 2px 6px rgba(16,42,56,.05);
  --shadow-md:0 10px 24px rgba(16,42,56,.10);
  --gap:24px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body{
  margin:0;
  font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC","Hiragino Sans GB",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
  font-size:16px;
  line-height:1.75;
  color:var(--text);
  background:var(--bg);
}
img{max-width:100%;display:block;border:0;}
a{color:var(--primary);text-decoration:none;}
a:hover,a:focus{color:var(--accent);}
ul{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4{margin:0;letter-spacing:-.01em;line-height:1.3;color:var(--text);}
p{margin:0 0 1em;}
button,input{font-family:inherit;font-size:inherit;}
button{cursor:pointer;}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px;}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 32px;}
.section{padding:80px 0;}
.section--tight{padding:56px 0;}
.section--soft{background:var(--primary-soft);}
.section-head{max-width:760px;margin-bottom:40px;}
.section-head.center{margin-left:auto;margin-right:auto;text-align:center;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;font-weight:600;color:var(--primary);
  background:var(--primary-soft);border-radius:999px;padding:5px 14px;margin-bottom:14px;
}
.section-title{font-size:30px;font-weight:700;}
.section-title + .section-sub{margin-top:12px;}
.section-sub{color:var(--muted);font-size:15.5px;margin:0;}

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:#fff;border-bottom:1px solid var(--border);
  box-shadow:0 2px 10px rgba(16,42,56,.04);
}
.header-inner{
  display:flex;align-items:center;gap:28px;
  min-height:72px;
}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto;}
.brand-mark{
  width:36px;height:36px;border-radius:10px;
  background:linear-gradient(135deg,var(--primary),var(--primary-dark));
  color:#fff;font-weight:700;font-size:19px;
  display:flex;align-items:center;justify-content:center;
  letter-spacing:0;
}
.brand-text{font-size:17px;font-weight:700;color:var(--text);letter-spacing:-.01em;}
.brand:hover .brand-text{color:var(--primary);}
.main-nav{display:flex;align-items:center;gap:4px;margin-left:auto;}
.nav-link{
  position:relative;display:inline-flex;align-items:center;gap:6px;
  padding:10px 13px;border-radius:9px;
  font-size:15px;color:#2C3E49;background:none;border:0;
  transition:color .18s ease,background .18s ease;
}
.nav-link::after{
  content:"";position:absolute;left:13px;right:13px;bottom:4px;height:2px;
  background:var(--accent);border-radius:2px;transform:scaleX(0);transform-origin:left;
  transition:transform .2s ease;
}
.nav-link:hover,.nav-link:focus{color:var(--primary);background:var(--primary-soft);}
.nav-link:hover::after{transform:scaleX(1);}
.nav-link.is-active{color:var(--primary);font-weight:600;}
.nav-link.is-active::after{transform:scaleX(1);}
.nav-mega{position:relative;}
.mega-trigger i{font-size:11px;transition:transform .2s ease;}
.nav-mega.is-open .mega-trigger i{transform:rotate(180deg);}
.nav-mega.is-open .mega-trigger{color:var(--primary);background:var(--primary-soft);}
.mega-panel{
  position:absolute;top:calc(100% + 12px);right:0;width:760px;
  background:#fff;border:1px solid var(--border);border-radius:0 0 var(--radius) var(--radius);
  box-shadow:var(--shadow-md);
  opacity:0;visibility:hidden;transform:translateY(-8px);
  transition:opacity .2s ease,transform .2s ease,visibility .2s ease;
  overflow:hidden;
}
.mega-panel::before{
  content:"";display:block;height:3px;
  background:linear-gradient(90deg,var(--primary),var(--accent));
}
.nav-mega:hover .mega-panel,.nav-mega:focus-within .mega-panel,.nav-mega.is-open .mega-panel{
  opacity:1;visibility:visible;transform:translateY(0);
}
.mega-inner{display:grid;grid-template-columns:1.05fr .95fr 1fr;}
.mega-col{padding:22px 22px 24px;}
.mega-col + .mega-col{border-left:1px solid var(--border);}
.mega-title{
  font-size:12.5px;font-weight:700;color:var(--muted);
  letter-spacing:.08em;margin-bottom:12px;
}
.mega-list li + li{margin-top:2px;}
.mega-list a{
  display:flex;align-items:center;justify-content:space-between;gap:10px;
  padding:9px 10px;border-radius:8px;font-size:14.5px;color:#2C3E49;
  border-left:2px solid transparent;transition:all .16s ease;
}
.mega-list a:hover{background:var(--primary-soft);color:var(--primary);border-left-color:var(--primary);}
.mega-list .count{font-size:12px;color:var(--muted);}
.mega-post{display:block;padding:9px 10px;border-radius:8px;border-left:2px solid transparent;transition:all .16s ease;}
.mega-post + .mega-post{margin-top:4px;}
.mega-post strong{display:block;font-size:14.5px;font-weight:600;color:#2C3E49;line-height:1.5;}
.mega-post span{font-size:12.5px;color:var(--muted);}
.mega-post:hover{background:var(--primary-soft);border-left-color:var(--primary);}
.mega-post:hover strong{color:var(--primary);}
.mega-card{display:block;border:1px solid var(--border);border-radius:12px;overflow:hidden;background:var(--bg);}
.mega-card img{width:100%;height:110px;object-fit:cover;}
.mega-card-body{padding:12px 14px 14px;}
.mega-card-tag{
  display:inline-block;font-size:12px;font-weight:600;color:var(--primary);
  background:var(--primary-soft);border-radius:999px;padding:3px 10px;margin-bottom:8px;
}
.mega-card strong{display:block;font-size:14.5px;line-height:1.5;color:#2C3E49;}
.mega-card-arrow{display:inline-flex;align-items:center;gap:6px;font-size:13px;color:var(--primary);margin-top:8px;}
.mega-card:hover{box-shadow:var(--shadow-sm);border-color:var(--primary-soft-2);}
.nav-toggle{
  display:none;margin-left:auto;width:42px;height:42px;border-radius:10px;
  border:1px solid var(--border);background:#fff;color:var(--primary);
}

/* ---------- hero ---------- */
.page-hero{
  position:relative;overflow:hidden;
  background:var(--primary-dark);
  color:#fff;
}
.page-hero::before{
  content:"";position:absolute;inset:0;
  background-image:url('/assets/images/backpic/back-1.webp');
  background-size:cover;background-position:center;
  transform:scale(1.02);
}
.page-hero::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(105deg,rgba(12,31,43,.94) 0%,rgba(23,86,107,.86) 52%,rgba(16,42,56,.68) 100%);
}
.hero-inner{position:relative;z-index:2;padding:92px 0 84px;}
.hero-copy{max-width:760px;}
.hero-badge{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;font-weight:600;color:#F2DFC0;
  background:rgba(201,138,46,.18);border:1px solid rgba(201,138,46,.42);
  border-radius:999px;padding:6px 14px;margin-bottom:20px;
}
.hero-title{font-size:42px;font-weight:700;color:#fff;margin-bottom:18px;}
.hero-sub{font-size:17px;line-height:1.85;color:#D6E4EC;max-width:640px;margin-bottom:26px;}
.hero-cta{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:38px;}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:13px 26px;border-radius:var(--radius-sm);
  font-size:15.5px;font-weight:600;border:1px solid transparent;
  transition:all .18s ease;line-height:1;
}
.btn-primary{background:var(--primary);color:#fff;}
.btn-primary:hover,.btn-primary:focus{background:#134A5C;color:#fff;transform:translateY(-2px);box-shadow:0 8px 18px rgba(16,42,56,.22);}
.btn-accent{background:var(--accent);color:#2A1B04;}
.btn-accent:hover,.btn-accent:focus{background:#B77B23;color:#fff;transform:translateY(-2px);box-shadow:0 8px 18px rgba(201,138,46,.28);}
.btn-ghost{border-color:rgba(255,255,255,.45);color:#fff;background:transparent;}
.btn-ghost:hover,.btn-ghost:focus{background:rgba(255,255,255,.12);color:#fff;transform:translateY(-2px);}
.btn-outline{border-color:var(--primary);color:var(--primary);background:#fff;}
.btn-outline:hover,.btn-outline:focus{background:var(--primary-soft);color:var(--primary);transform:translateY(-2px);}
.hero-stats{
  display:grid;grid-template-columns:repeat(3,minmax(0,1fr));
  gap:18px;max-width:720px;
  border-top:1px solid rgba(255,255,255,.18);padding-top:24px;
}
.stat strong{display:block;font-size:16px;font-weight:700;color:#fff;margin-bottom:4px;}
.stat span{font-size:13.5px;color:#AFC7D4;}
.hero-crumb{font-size:13.5px;color:#AFC7D4;margin-bottom:16px;}
.hero-crumb a{color:#D6E4EC;}
.hero-crumb a:hover{color:var(--accent);}

/* ---------- cards ---------- */
.grid-3{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:var(--gap);}
.grid-2{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:var(--gap);}
.card{
  background:var(--card);border:1px solid var(--border);border-radius:var(--radius);
  box-shadow:var(--shadow-sm);overflow:hidden;
  transition:box-shadow .2s ease,transform .2s ease,border-color .2s ease;
  display:flex;flex-direction:column;
}
.card:hover{box-shadow:var(--shadow-md);transform:translateY(-2px);border-color:var(--primary-soft-2);}
.card-media{position:relative;aspect-ratio:16/9;overflow:hidden;background:var(--primary-soft);}
.card-media img{width:100%;height:100%;object-fit:cover;transition:transform .35s ease;}
.card:hover .card-media img{transform:scale(1.04);}
.card-badge{
  position:absolute;left:14px;top:14px;
  font-size:12px;font-weight:600;color:var(--primary);
  background:rgba(255,255,255,.94);border-radius:999px;padding:4px 12px;
}
.card-body{padding:22px;display:flex;flex-direction:column;gap:10px;flex:1;}
.card-title{font-size:19px;font-weight:600;}
.card-desc{font-size:14.5px;color:var(--muted);margin:0;line-height:1.75;}
.card-foot{
  margin-top:auto;padding-top:14px;border-top:1px dashed var(--border);
  display:flex;align-items:center;justify-content:space-between;gap:12px;
  font-size:13.5px;color:var(--muted);
}
.card-link{display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:600;color:var(--primary);}
.card-link:hover{color:var(--accent);}
.card-link i{transition:transform .18s ease;}
.card-link:hover i{transform:translateX(3px);}
.tag{
  display:inline-block;font-size:12px;font-weight:600;
  color:var(--primary);background:var(--primary-soft);border-radius:999px;padding:3px 11px;
}
.tag--accent{color:#8A5A12;background:var(--accent-soft);}

/* ---------- steps ---------- */
.steps{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:var(--gap);}
.step{
  background:#fff;border:1px solid var(--border);border-radius:var(--radius);
  padding:26px 22px;box-shadow:var(--shadow-sm);position:relative;
  transition:box-shadow .2s ease,transform .2s ease;
}
.step:hover{box-shadow:var(--shadow-md);transform:translateY(-2px);}
.step-num{
  width:38px;height:38px;border-radius:11px;
  background:var(--primary-soft);color:var(--primary);
  font-weight:700;font-size:16px;display:flex;align-items:center;justify-content:center;
  margin-bottom:16px;
}
.step h3{font-size:17px;font-weight:600;margin-bottom:8px;}
.step p{font-size:14.5px;color:var(--muted);margin:0;line-height:1.75;}

/* ---------- assure strip ---------- */
.assure{
  display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:20px;
  background:#fff;border:1px solid var(--border);border-radius:var(--radius);
  padding:28px;box-shadow:var(--shadow-sm);
}
.assure-item{display:flex;gap:14px;align-items:flex-start;}
.assure-icon{
  flex:0 0 auto;width:42px;height:42px;border-radius:12px;
  background:var(--primary-soft);color:var(--primary);
  display:flex;align-items:center;justify-content:center;font-size:17px;
}
.assure-item strong{display:block;font-size:15.5px;font-weight:600;margin-bottom:4px;}
.assure-item span{font-size:13.5px;color:var(--muted);line-height:1.7;}

/* ---------- split note ---------- */
.split{display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:center;}
.split-media{
  position:relative;border-radius:var(--radius);overflow:hidden;
  border:1px solid var(--border);box-shadow:var(--shadow-sm);aspect-ratio:4/3;background:var(--primary-soft);
}
.split-media img{width:100%;height:100%;object-fit:cover;}
.split h2{font-size:28px;font-weight:700;margin-bottom:16px;}
.split p{font-size:15.5px;color:#3A4A55;line-height:1.85;}
.check-list{margin-top:8px;}
.check-list li{
  display:flex;gap:10px;align-items:flex-start;
  font-size:15px;color:#3A4A55;padding:9px 0;border-bottom:1px dashed var(--border);
}
.check-list li:last-child{border-bottom:0;}
.check-list i{color:var(--primary);margin-top:5px;font-size:13px;}

/* ---------- faq ---------- */
.faq-list{display:flex;flex-direction:column;gap:14px;}
.faq-item{
  background:#fff;border:1px solid var(--border);border-radius:var(--radius);
  box-shadow:var(--shadow-sm);overflow:hidden;
  transition:box-shadow .2s ease;
}
.faq-item:hover{box-shadow:var(--shadow-md);}
.faq-item summary{
  list-style:none;cursor:pointer;
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:20px 24px;font-size:16px;font-weight:600;color:var(--text);
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary:hover{color:var(--primary);}
.faq-icon{
  flex:0 0 auto;width:26px;height:26px;border-radius:8px;
  background:var(--primary-soft);color:var(--primary);
  display:flex;align-items:center;justify-content:center;font-size:13px;
  transition:transform .2s ease;
}
.faq-item[open] .faq-icon{transform:rotate(45deg);}
.faq-answer{
  padding:0 24px 22px;font-size:15px;color:#3A4A55;line-height:1.85;
  border-top:1px solid var(--border);margin-top:0;padding-top:18px;
  background:#FAFCFD;
}

/* ---------- cta ---------- */
.cta-block{
  background:linear-gradient(115deg,var(--primary-soft) 0%,#F3F8FB 60%,#fff 100%);
  border:1px solid var(--primary-soft-2);border-radius:18px;
  padding:46px 44px;display:flex;align-items:center;justify-content:space-between;gap:34px;
  box-shadow:var(--shadow-sm);
}
.cta-block h2{font-size:26px;font-weight:700;margin-bottom:10px;}
.cta-block p{margin:0;font-size:15.5px;color:var(--muted);max-width:620px;}
.cta-actions{display:flex;gap:14px;flex-wrap:wrap;flex:0 0 auto;}

/* ---------- footer ---------- */
.site-footer{background:var(--primary-dark);color:#B9CDD8;padding:64px 0 0;margin-top:0;}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.4fr;gap:36px;padding-bottom:44px;}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px;}
.footer-brand strong{color:#fff;font-size:17px;font-weight:700;}
.site-footer p{font-size:14.5px;line-height:1.85;color:#A8C0CC;}
.site-footer h4{
  color:#fff;font-size:14px;font-weight:700;margin-bottom:16px;
  padding-left:12px;position:relative;
}
.site-footer h4::before{
  content:"";position:absolute;left:0;top:6px;width:3px;height:14px;
  background:var(--accent);border-radius:2px;
}
.footer-links li + li{margin-top:2px;}
.footer-links a{color:#A8C0CC;font-size:14.5px;display:inline-block;padding:5px 0;transition:color .16s ease,transform .16s ease;}
.footer-links a:hover{color:var(--accent);transform:translateX(3px);}
.subscribe-form{display:flex;gap:10px;margin:6px 0 10px;}
.subscribe-form input{
  flex:1;height:44px;border-radius:9px;border:1px solid #2A4655;
  background:#16323F;color:#EAF2F7;padding:0 14px;font-size:14.5px;
}
.subscribe-form input::placeholder{color:#7E9AA8;}
.subscribe-form input:focus{outline:none;border-color:var(--accent);box-shadow:0 0 0 3px rgba(201,138,46,.18);}
.subscribe-form button{
  height:44px;padding:0 18px;border:0;border-radius:9px;
  background:var(--accent);color:#2A1B04;font-weight:600;font-size:14.5px;
  transition:background .18s ease,transform .18s ease;
}
.subscribe-form button:hover{background:#B77B23;color:#fff;transform:translateY(-1px);}
.form-note{font-size:13px;color:#7E9AA8;}
.footer-bottom{
  border-top:1px solid #22404F;padding:20px 0;display:flex;justify-content:space-between;
  gap:16px;flex-wrap:wrap;font-size:13.5px;color:#8FA9B6;
}

/* ---------- responsive ---------- */
@media (max-width:1199px){
  .container{padding:0 26px;}
  .hero-title{font-size:38px;}
  .mega-panel{width:660px;}
}
@media (max-width:991px){
  .header-inner{gap:16px;}
  .nav-toggle{display:inline-flex;align-items:center;justify-content:center;}
  .main-nav{
    position:absolute;top:100%;left:0;right:0;
    flex-direction:column;align-items:stretch;gap:0;
    background:#fff;border-bottom:1px solid var(--border);
    box-shadow:var(--shadow-md);padding:10px 20px 20px;
    display:none;
  }
  .main-nav.is-open{display:flex;}
  .nav-link{padding:13px 6px;border-bottom:1px solid var(--border);border-radius:0;justify-content:space-between;}
  .nav-link::after{display:none;}
  .nav-mega{width:100%;}
  .mega-panel{
    position:static;width:100%;opacity:1;visibility:visible;transform:none;
    box-shadow:none;border-radius:10px;margin-top:8px;display:none;
    border:1px solid var(--border);
  }
  .nav-mega.is-open .mega-panel{display:block;}
  .nav-mega:hover .mega-panel{display:none;}
  .nav-mega.is-open:hover .mega-panel{display:block;}
  .mega-inner{grid-template-columns:1fr;}
  .mega-col + .mega-col{border-left:0;border-top:1px solid var(--border);}
  .grid-3{grid-template-columns:repeat(2,minmax(0,1fr));}
  .steps{grid-template-columns:repeat(2,minmax(0,1fr));}
  .assure{grid-template-columns:repeat(2,minmax(0,1fr));}
  .footer-grid{grid-template-columns:1fr 1fr;gap:30px;}
  .split{grid-template-columns:1fr;gap:28px;}
  .section{padding:64px 0;}
}
@media (max-width:767px){
  .container{padding:0 20px;}
  .brand-text{font-size:15.5px;}
  .hero-inner{padding:64px 0 56px;}
  .hero-title{font-size:30px;}
  .hero-sub{font-size:15.5px;}
  .hero-stats{grid-template-columns:1fr;gap:14px;}
  .section{padding:52px 0;}
  .section-title{font-size:24px;}
  .grid-3,.grid-2{grid-template-columns:1fr;}
  .steps{grid-template-columns:1fr;}
  .assure{grid-template-columns:1fr;}
  .cta-block{flex-direction:column;align-items:flex-start;padding:32px 24px;}
  .cta-block h2{font-size:22px;}
  .cta-actions{width:100%;}
  .cta-actions .btn{flex:1 1 auto;}
  .footer-grid{grid-template-columns:1fr;}
  .footer-bottom{flex-direction:column;gap:8px;}
  .split h2{font-size:23px;}
}
@media (max-width:520px){
  .hero-title{font-size:26px;}
  .hero-cta{flex-direction:column;align-items:stretch;}
  .hero-cta .btn{width:100%;}
  .subscribe-form{flex-direction:column;}
  .subscribe-form button{width:100%;}
  .faq-item summary{padding:16px 18px;font-size:15px;}
  .faq-answer{padding:16px 18px 20px;}
}

/* roulang page: category3 */
:root{
  --primary:#1B4D6B;
  --primary-dark:#143D55;
  --primary-deep:#102A38;
  --primary-soft:#EAF2F7;
  --accent:#C98A2E;
  --accent-soft:#FBF2E2;
  --bg:#F7F9FB;
  --surface:#FFFFFF;
  --text:#16232B;
  --muted:#5C7280;
  --border:#E4EBF0;
  --radius-lg:18px;
  --radius:14px;
  --radius-sm:10px;
  --shadow-sm:0 2px 6px rgba(16,42,56,.05);
  --shadow-md:0 10px 24px rgba(16,42,56,.10);
  --shadow-lg:0 22px 48px rgba(16,42,56,.14);
  --space-section:84px;
  --font:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC",-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,sans-serif;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:var(--font);
  font-size:16px;
  line-height:1.75;
  color:var(--text);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;height:auto;}
a{color:var(--primary);text-decoration:none;transition:color .18s ease;}
a:hover{color:var(--accent);}
h1,h2,h3,h4{font-family:var(--font);color:var(--primary-deep);letter-spacing:-.01em;margin:0;}
h1{font-size:42px;line-height:1.24;font-weight:700;}
h2{font-size:29px;line-height:1.32;font-weight:700;}
h3{font-size:20px;line-height:1.42;font-weight:600;}
p{margin:0 0 1em;}
p:last-child{margin-bottom:0;}
ul{margin:0;padding:0;list-style:none;}
button{font-family:inherit;}
:focus-visible{outline:2px solid var(--accent);outline-offset:3px;border-radius:6px;}

.container{width:100%;max-width:1200px;margin:0 auto;padding:0 32px;}
.section{padding:var(--space-section) 0;}
.section--tight{padding:56px 0;}
.section--soft{background:var(--primary-soft);}
.section--dark{background:var(--primary-deep);color:#DCE7EE;}
.section-head{max-width:760px;margin-bottom:40px;}
.section-head .eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;font-weight:600;letter-spacing:.08em;
  color:var(--primary);background:var(--primary-soft);
  border-radius:999px;padding:6px 14px;margin-bottom:16px;
}
.section-head h2{margin-bottom:12px;}
.section-head p{color:var(--muted);font-size:16px;margin:0;}
.section--dark .section-head h2{color:#fff;}
.section--dark .section-head p{color:#A9C1CE;}

/* ============ Header / Nav ============ */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(255,255,255,.96);
  border-bottom:1px solid var(--border);
  backdrop-filter:saturate(160%) blur(8px);
}
.header-inner{
  display:flex;align-items:center;gap:28px;
  min-height:72px;
}
.brand{display:flex;align-items:center;gap:10px;flex:none;}
.brand-mark{
  width:36px;height:36px;border-radius:11px;
  background:linear-gradient(140deg,var(--primary),var(--primary-deep));
  color:#fff;font-weight:700;font-size:18px;
  display:flex;align-items:center;justify-content:center;
  box-shadow:var(--shadow-sm);
}
.brand-text{
  font-size:17px;font-weight:700;color:var(--primary-deep);letter-spacing:-.01em;
  white-space:nowrap;
}
.main-nav{display:flex;align-items:center;gap:4px;margin-left:auto;}
.nav-link{
  position:relative;
  display:inline-flex;align-items:center;gap:6px;
  padding:9px 14px;border-radius:var(--radius-sm);
  font-size:15px;font-weight:500;color:#3A4C57;
  background:transparent;border:0;cursor:pointer;
  transition:color .18s ease,background .18s ease;
}
.nav-link::after{
  content:"";position:absolute;left:14px;right:14px;bottom:4px;height:2px;
  background:var(--accent);border-radius:2px;transform:scaleX(0);transform-origin:left;
  transition:transform .22s ease;
}
.nav-link:hover{color:var(--primary);background:var(--primary-soft);}
.nav-link:hover::after{transform:scaleX(1);}
.nav-link.is-active{color:var(--primary);font-weight:600;background:var(--primary-soft);}
.nav-link.is-active::after{transform:scaleX(1);}
.nav-mega{position:relative;}
.mega-trigger i{font-size:11px;transition:transform .2s ease;}
.nav-mega.is-open .mega-trigger{color:var(--primary);background:var(--primary-soft);}
.nav-mega.is-open .mega-trigger i{transform:rotate(180deg);}
.mega-panel{
  position:absolute;top:calc(100% + 14px);right:0;width:640px;
  background:#fff;border:1px solid var(--border);border-radius:0 0 var(--radius) var(--radius);
  box-shadow:var(--shadow-lg);
  opacity:0;visibility:hidden;transform:translateY(-8px);
  transition:opacity .2s ease,transform .2s ease,visibility .2s;
  overflow:hidden;
}
.mega-panel::before{
  content:"";position:absolute;top:0;left:0;right:0;height:3px;
  background:linear-gradient(90deg,var(--primary),var(--accent));
}
.nav-mega.is-open .mega-panel,
.nav-mega:hover .mega-panel{opacity:1;visibility:visible;transform:translateY(0);}
.mega-inner{display:grid;grid-template-columns:1.15fr 1.15fr .95fr;gap:0;padding-top:3px;}
.mega-col{padding:22px 20px;border-right:1px solid var(--border);}
.mega-col:last-child{border-right:0;}
.mega-title{font-size:12px;font-weight:700;letter-spacing:.1em;color:var(--muted);margin-bottom:14px;}
.mega-list li{margin-bottom:6px;}
.mega-list a{
  display:flex;align-items:center;justify-content:space-between;gap:10px;
  padding:8px 10px;border-radius:8px;font-size:14px;color:#33454F;
  border-left:2px solid transparent;
}
.mega-list a:hover{color:var(--primary);background:var(--primary-soft);border-left-color:var(--primary);}
.mega-list .count{font-size:11px;color:var(--muted);background:var(--bg);border-radius:999px;padding:2px 8px;}
.mega-post{display:block;padding:9px 10px;border-radius:8px;border-left:2px solid transparent;}
.mega-post:hover{background:var(--primary-soft);border-left-color:var(--accent);}
.mega-post strong{display:block;font-size:14px;font-weight:600;color:#2C3E48;line-height:1.5;}
.mega-post span{font-size:12px;color:var(--muted);}
.mega-card{
  display:block;border:1px solid var(--border);border-radius:var(--radius);
  padding:12px;background:var(--bg);
}
.mega-card:hover{border-color:var(--primary);}
.mega-card .thumb{
  position:relative;width:100%;aspect-ratio:16/9;border-radius:8px;overflow:hidden;margin-bottom:10px;
}
.mega-card .thumb img{width:100%;height:100%;object-fit:cover;}
.mega-card .tag{font-size:11px;color:var(--primary);background:#fff;border-radius:999px;padding:2px 9px;display:inline-block;margin-bottom:6px;}
.mega-card .go{font-size:13px;font-weight:600;color:var(--primary-deep);display:flex;align-items:center;gap:6px;}
.nav-toggle{
  display:none;margin-left:auto;width:44px;height:44px;border-radius:12px;
  border:1px solid var(--border);background:#fff;color:var(--primary-deep);
  font-size:18px;cursor:pointer;
}
.nav-drawer{display:none;}

/* ============ Buttons ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:13px 26px;border-radius:var(--radius-sm);
  font-size:15px;font-weight:600;border:1px solid transparent;
  cursor:pointer;transition:transform .18s ease,box-shadow .18s ease,background .18s ease,color .18s ease,border-color .18s ease;
}
.btn-primary{background:var(--primary);color:#fff;box-shadow:0 6px 16px rgba(27,77,107,.22);}
.btn-primary:hover{background:var(--primary-dark);color:#fff;transform:translateY(-2px);box-shadow:0 12px 24px rgba(27,77,107,.26);}
.btn-outline{background:transparent;color:var(--primary);border-color:var(--primary);}
.btn-outline:hover{background:var(--primary-soft);color:var(--primary-dark);transform:translateY(-2px);}
.btn-accent{background:var(--accent);color:#fff;}
.btn-accent:hover{background:#B87A22;color:#fff;transform:translateY(-2px);}
.btn-light{background:#fff;color:var(--primary-deep);}
.btn-light:hover{background:var(--primary-soft);color:var(--primary-deep);transform:translateY(-2px);}
.btn-ghost{background:transparent;color:#DCE7EE;border-color:rgba(220,231,238,.4);}
.btn-ghost:hover{background:rgba(255,255,255,.12);color:#fff;transform:translateY(-2px);}
.btn-sm{padding:9px 18px;font-size:14px;}
.text-link{font-weight:600;display:inline-flex;align-items:center;gap:6px;}

/* ============ Badges ============ */
.badge{
  display:inline-flex;align-items:center;gap:6px;
  font-size:12px;font-weight:600;padding:4px 11px;border-radius:999px;
  background:var(--primary-soft);color:var(--primary);
}
.badge-accent{background:var(--accent-soft);color:#9A6A1C;}
.badge-dark{background:rgba(255,255,255,.14);color:#DCE7EE;}

/* ============ Hero ============ */
.hero{
  position:relative;color:#fff;overflow:hidden;
  background-image:linear-gradient(115deg,rgba(16,42,56,.94) 0%,rgba(20,61,85,.88) 46%,rgba(27,77,107,.62) 100%),url("/assets/images/backpic/back-1.webp");
  background-size:cover;background-position:center;
}
.hero::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:120px;
  background:linear-gradient(to top,rgba(16,42,56,.55),transparent);
}
.hero-inner{position:relative;z-index:2;padding:96px 0 88px;max-width:840px;}
.hero .eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  background:rgba(255,255,255,.14);color:#EAF2F7;
  border-radius:999px;padding:7px 16px;font-size:13px;font-weight:600;letter-spacing:.06em;
  margin-bottom:20px;
}
.hero h1{color:#fff;margin-bottom:18px;}
.hero-lead{font-size:17px;line-height:1.85;color:#D3E1EA;max-width:680px;margin-bottom:30px;}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:44px;}
.hero-metrics{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:18px;max-width:700px;}
.metric{
  background:rgba(255,255,255,.1);border:1px solid rgba(255,255,255,.16);
  border-radius:var(--radius);padding:16px 18px;
}
.metric strong{display:block;font-size:16px;color:#fff;font-weight:700;margin-bottom:4px;}
.metric span{font-size:13px;color:#B9CCD8;}
.crumb{
  font-size:13px;color:#B9CCD8;display:flex;flex-wrap:wrap;align-items:center;gap:8px;margin-bottom:22px;
}
.crumb a{color:#DCE7EE;}
.crumb a:hover{color:var(--accent);}

/* ============ Lane / Runway ============ */
.lanes{display:flex;flex-direction:column;gap:28px;}
.lane{
  display:grid;grid-template-columns:minmax(0,.95fr) minmax(0,1.05fr);
  gap:38px;align-items:center;
  background:var(--surface);border:1px solid var(--border);border-radius:var(--radius-lg);
  padding:26px;box-shadow:var(--shadow-sm);
  transition:box-shadow .22s ease,transform .22s ease,border-color .22s ease;
}
.lane:hover{box-shadow:var(--shadow-md);transform:translateY(-2px);border-color:#D3E0E8;}
.lane-media{
  position:relative;width:100%;aspect-ratio:16/10;border-radius:var(--radius);overflow:hidden;
  margin:0;background:var(--primary-soft);
}
.lane-media img{width:100%;height:100%;object-fit:cover;}
.lane-media::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,transparent 55%,rgba(16,42,56,.42));
}
.lane-step{
  position:absolute;left:16px;top:16px;z-index:2;
  background:#fff;color:var(--primary-deep);font-size:12px;font-weight:700;
  border-radius:999px;padding:5px 13px;box-shadow:var(--shadow-sm);
}
.lane-body .badge{margin-bottom:14px;}
.lane-body h3{font-size:22px;margin-bottom:12px;}
.lane-body p{color:var(--muted);font-size:15px;line-height:1.85;}
.lane-list{margin-top:16px;display:flex;flex-direction:column;gap:9px;}
.lane-list li{position:relative;padding-left:24px;font-size:14.5px;color:#3E505B;}
.lane-list li::before{
  content:"";position:absolute;left:6px;top:9px;width:7px;height:7px;border-radius:2px;
  background:var(--accent);
}
.lane.is-reverse{grid-template-columns:minmax(0,1.05fr) minmax(0,.95fr);}
.lane.is-reverse .lane-media{order:2;}
.lane.is-reverse .lane-body{order:1;}
.runway-foot{
  margin-top:34px;display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:20px;
  background:var(--surface);border:1px dashed #C9D9E3;border-radius:var(--radius-lg);
  padding:24px 28px;
}
.runway-foot p{margin:0;color:var(--muted);font-size:15px;max-width:640px;}

/* ============ Checklist ============ */
.check-wrap{display:grid;grid-template-columns:minmax(0,.85fr) minmax(0,1.15fr);gap:44px;align-items:start;}
.check-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:18px;}
.check-card{
  background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);
  padding:22px;box-shadow:var(--shadow-sm);
  transition:box-shadow .2s ease,transform .2s ease;
}
.check-card:hover{box-shadow:var(--shadow-md);transform:translateY(-2px);}
.check-card .ico{
  width:42px;height:42px;border-radius:12px;display:flex;align-items:center;justify-content:center;
  background:var(--primary-soft);color:var(--primary);font-size:17px;margin-bottom:14px;
}
.check-card h3{font-size:17px;margin-bottom:8px;}
.check-card p{font-size:14.5px;color:var(--muted);margin:0;}

/* ============ Compare ============ */
.compare-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:24px;margin-top:8px;}
.compare-card{border-radius:var(--radius-lg);padding:28px;border:1px solid var(--border);background:var(--surface);box-shadow:var(--shadow-sm);}
.compare-card.warn{background:#FFF9F4;border-color:#F0DCC6;}
.compare-card.safe{background:#F3F9F7;border-color:#D3E7E0;}
.compare-card h3{font-size:18px;margin-bottom:16px;display:flex;align-items:center;gap:10px;}
.compare-card h3 i{font-size:15px;}
.compare-card.warn h3 i{color:#C4653A;}
.compare-card.safe h3 i{color:#2E8A6E;}
.compare-card li{
  position:relative;padding-left:22px;font-size:14.5px;color:#42545F;margin-bottom:11px;line-height:1.75;
}
.compare-card li::before{content:"";position:absolute;left:4px;top:9px;width:6px;height:6px;border-radius:50%;background:currentColor;opacity:.45;}
.compare-card li:last-child{margin-bottom:0;}

/* ============ FAQ ============ */
.faq-list{max-width:900px;margin:0 auto;}
.faq-item{
  background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);
  margin-bottom:12px;box-shadow:var(--shadow-sm);overflow:hidden;
  transition:box-shadow .2s ease,border-color .2s ease;
}
.faq-item:hover{box-shadow:var(--shadow-md);border-color:#D3E0E8;}
.faq-item summary{
  list-style:none;cursor:pointer;padding:19px 24px;
  display:flex;align-items:center;justify-content:space-between;gap:18px;
  font-size:16px;font-weight:600;color:var(--primary-deep);
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary::after{
  content:"+";font-size:20px;font-weight:400;color:var(--primary);
  line-height:1;flex:none;transition:transform .2s ease;
}
.faq-item[open] summary::after{content:"–";transform:rotate(180deg);}
.faq-item[open] summary{background:var(--primary-soft);}
.faq-body{padding:4px 24px 22px;font-size:15px;color:var(--muted);line-height:1.85;background:#FAFCFD;border-top:1px solid var(--border);}

/* ============ Feature / CTA ============ */
.cta-band{
  background:linear-gradient(120deg,var(--primary) 0%,var(--primary-deep) 100%);
  border-radius:22px;padding:46px 44px;color:#fff;
  display:grid;grid-template-columns:minmax(0,1.4fr) minmax(0,.6fr);
  gap:32px;align-items:center;box-shadow:var(--shadow-lg);
}
.cta-band h2{color:#fff;margin-bottom:12px;}
.cta-band p{color:#BFD3DF;margin:0;font-size:15.5px;}
.cta-band .cta-actions{display:flex;flex-direction:column;gap:12px;}
.cta-band .cta-actions .btn{width:100%;}

.info-split{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:44px;align-items:center;}
.info-media{position:relative;aspect-ratio:4/3;border-radius:var(--radius-lg);overflow:hidden;box-shadow:var(--shadow-md);}
.info-media img{width:100%;height:100%;object-fit:cover;}
.info-body h2{margin-bottom:14px;}
.info-body p{color:var(--muted);font-size:15.5px;}
.info-points{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px;margin-top:22px;}
.info-points div{
  background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);
  padding:14px 16px;font-size:14px;color:#3E505B;font-weight:500;
}
.info-points div i{color:var(--accent);margin-right:8px;}

/* ============ Footer ============ */
.site-footer{background:var(--primary-deep);color:#A9C1CE;padding:66px 0 24px;margin-top:0;}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.3fr;gap:36px;}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:14px;}
.footer-brand .brand-mark{width:34px;height:34px;border-radius:10px;font-size:17px;}
.footer-brand strong{color:#fff;font-size:16px;}
.site-footer p{font-size:14px;line-height:1.85;color:#9DB6C4;}
.site-footer h4{
  color:#fff;font-size:14px;font-weight:600;margin-bottom:18px;position:relative;padding-left:14px;
}
.site-footer h4::before{content:"";position:absolute;left:0;top:7px;width:6px;height:6px;border-radius:2px;background:var(--accent);}
.footer-links li{margin-bottom:10px;}
.footer-links a{color:#A9C1CE;font-size:14px;}
.footer-links a:hover{color:var(--accent);}
.subscribe-form{display:flex;gap:8px;margin-bottom:10px;}
.subscribe-form input{
  flex:1;min-width:0;height:44px;border-radius:var(--radius-sm);
  border:1px solid rgba(255,255,255,.18);background:rgba(255,255,255,.08);
  color:#fff;padding:0 14px;font-size:14px;
}
.subscribe-form input::placeholder{color:#8AA5B5;}
.subscribe-form input:focus{outline:none;border-color:var(--accent);box-shadow:0 0 0 3px rgba(201,138,46,.22);}
.subscribe-form button{
  height:44px;padding:0 20px;border:0;border-radius:var(--radius-sm);
  background:var(--accent);color:#fff;font-size:14px;font-weight:600;cursor:pointer;
  transition:background .18s ease,transform .18s ease;
}
.subscribe-form button:hover{background:#B87A22;transform:translateY(-1px);}
.form-note{font-size:12.5px;color:#89A3B2;}
.footer-bottom{
  margin-top:44px;padding-top:20px;border-top:1px solid rgba(255,255,255,.1);
  display:flex;flex-wrap:wrap;justify-content:space-between;gap:12px;font-size:13px;color:#89A3B2;
}

/* ============ Responsive ============ */
@media screen and (max-width:1199px){
  h1{font-size:38px;}
  .container{padding:0 26px;}
  .mega-panel{width:560px;}
}
@media screen and (max-width:991px){
  :root{--space-section:64px;}
  h1{font-size:33px;}
  h2{font-size:25px;}
  .main-nav{display:none;}
  .nav-toggle{display:flex;align-items:center;justify-content:center;}
  .nav-drawer{
    display:none;border-top:1px solid var(--border);background:#fff;padding:14px 0 20px;
  }
  .nav-drawer.is-open{display:block;}
  .nav-drawer .drawer-link{
    display:block;padding:12px 26px;font-size:15px;font-weight:500;color:#3A4C57;border-left:3px solid transparent;
  }
  .nav-drawer .drawer-link:hover,
  .nav-drawer .drawer-link.is-active{color:var(--primary);background:var(--primary-soft);border-left-color:var(--primary);}
  .drawer-group-title{font-size:12px;font-weight:700;letter-spacing:.1em;color:var(--muted);padding:14px 26px 8px;}
  .drawer-post{display:block;padding:9px 26px;font-size:14px;color:#3A4C57;}
  .drawer-post span{display:block;font-size:12px;color:var(--muted);}
  .hero-inner{padding:72px 0 64px;}
  .lane,.lane.is-reverse{grid-template-columns:1fr;gap:22px;}
  .lane.is-reverse .lane-media{order:1;}
  .lane.is-reverse .lane-body{order:2;}
  .check-wrap{grid-template-columns:1fr;gap:30px;}
  .info-split{grid-template-columns:1fr;gap:30px;}
  .cta-band{grid-template-columns:1fr;padding:34px 26px;}
  .footer-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:30px;}
}
@media screen and (max-width:767px){
  :root{--space-section:52px;}
  .container{padding:0 20px;}
  h1{font-size:27px;}
  h2{font-size:22px;}
  h3{font-size:18px;}
  body{font-size:15.5px;}
  .brand-text{font-size:15px;}
  .hero-inner{padding:56px 0 52px;}
  .hero-lead{font-size:15.5px;}
  .hero-actions{gap:10px;}
  .hero-actions .btn{width:100%;}
  .hero-metrics{grid-template-columns:1fr;gap:12px;}
  .lane{padding:18px;border-radius:var(--radius);}
  .check-grid{grid-template-columns:1fr;}
  .compare-grid{grid-template-columns:1fr;}
  .info-points{grid-template-columns:1fr;}
  .runway-foot{padding:20px;flex-direction:column;align-items:flex-start;}
  .runway-foot .btn{width:100%;}
  .footer-grid{grid-template-columns:1fr;}
  .footer-bottom{flex-direction:column;}
  .subscribe-form{flex-direction:column;}
  .subscribe-form button{width:100%;}
}
@media screen and (max-width:520px){
  h1{font-size:24px;}
  .section-head{margin-bottom:28px;}
  .lane-body h3{font-size:19px;}
  .faq-item summary{padding:16px 18px;font-size:15px;}
  .faq-body{padding:2px 18px 18px;}
}

/* roulang page: category2 */
:root{
  --primary:#1B4D6B;
  --primary-dark:#12384F;
  --primary-soft:#EAF2F7;
  --primary-line:#D3E2EC;
  --accent:#C98A2E;
  --accent-soft:#FBF2E2;
  --ink:#102A38;
  --ink-2:#26485C;
  --muted:#5C7280;
  --bg:#F7F9FB;
  --card:#FFFFFF;
  --line:#E4EBF0;
  --danger:#C0523F;
  --radius-lg:18px;
  --radius:14px;
  --radius-sm:10px;
  --radius-pill:999px;
  --shadow-sm:0 2px 6px rgba(16,42,56,.05);
  --shadow-md:0 10px 24px rgba(16,42,56,.10);
  --shadow-lg:0 18px 40px rgba(16,42,56,.14);
  --space-section:80px;
  --container:1200px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body{
  margin:0;
  font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC","Helvetica Neue",Arial,sans-serif;
  font-size:16px;
  line-height:1.75;
  color:var(--ink);
  background:var(--bg);
  letter-spacing:0;
}
img{max-width:100%;display:block;border:0;}
a{color:var(--primary);text-decoration:none;transition:color .2s ease,background-color .2s ease,border-color .2s ease;}
a:hover{color:var(--accent);}
h1,h2,h3,h4,p,ul,ol{margin:0;}
ul{padding:0;list-style:none;}
button{font-family:inherit;}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px;}
.container{
  width:100%;
  max-width:var(--container);
  margin:0 auto;
  padding:0 32px;
}
.section{padding:var(--space-section) 0;}
.section-tight{padding:56px 0;}
.section-head{margin-bottom:36px;max-width:760px;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;font-weight:600;letter-spacing:.06em;
  color:var(--primary);background:var(--primary-soft);
  border:1px solid var(--primary-line);
  border-radius:var(--radius-pill);
  padding:5px 14px;margin-bottom:14px;
}
.eyebrow i{font-size:11px;color:var(--accent);}
h1{font-size:42px;line-height:1.24;font-weight:700;letter-spacing:-.01em;}
h2{font-size:28px;line-height:1.34;font-weight:700;letter-spacing:-.01em;}
h3{font-size:20px;line-height:1.45;font-weight:600;}
.section-head p{color:var(--muted);font-size:16px;margin-top:12px;}
.muted{color:var(--muted);}
.small{font-size:13.5px;}

/* ---------- header / nav ---------- */
.site-header{
  position:sticky;top:0;z-index:120;
  background:rgba(255,255,255,.96);
  border-bottom:1px solid var(--line);
  backdrop-filter:saturate(140%) blur(6px);
  transition:box-shadow .25s ease;
}
.site-header.is-scrolled{box-shadow:0 6px 20px rgba(16,42,56,.08);}
.header-inner{
  display:flex;align-items:center;gap:28px;
  min-height:74px;
}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto;color:var(--ink);}
.brand-mark{
  width:36px;height:36px;border-radius:11px;
  background:linear-gradient(140deg,var(--primary),var(--primary-dark));
  color:#fff;font-weight:700;font-size:18px;
  display:flex;align-items:center;justify-content:center;
  box-shadow:0 4px 12px rgba(27,77,107,.28);
  flex:0 0 auto;
}
.brand-text{font-size:17px;font-weight:700;letter-spacing:-.01em;white-space:nowrap;}
.main-nav{display:flex;align-items:center;gap:4px;margin-left:auto;flex-wrap:wrap;}
.nav-link{
  display:inline-flex;align-items:center;gap:6px;
  padding:9px 13px;border-radius:var(--radius-sm);
  font-size:14.5px;font-weight:500;color:var(--ink-2);
  background:transparent;border:0;cursor:pointer;
  transition:background-color .2s ease,color .2s ease;
}
.nav-link:hover{background:var(--primary-soft);color:var(--primary);}
.nav-link.is-active{color:var(--primary);font-weight:700;background:var(--primary-soft);}
.nav-mega{position:relative;}
.mega-trigger i{font-size:10px;transition:transform .25s ease;}
.nav-mega.is-open .mega-trigger i{transform:rotate(180deg);}
.mega-panel{
  position:absolute;right:0;top:calc(100% + 14px);width:720px;
  background:#fff;border:1px solid var(--line);border-radius:0 0 var(--radius) var(--radius);
  box-shadow:var(--shadow-lg);
  opacity:0;visibility:hidden;transform:translateY(-8px);
  transition:opacity .22s ease,transform .22s ease,visibility .22s ease;
  overflow:hidden;
}
.mega-panel::before{
  content:"";position:absolute;left:0;right:0;top:0;height:3px;
  background:linear-gradient(90deg,var(--primary),var(--accent));
}
.mega-panel::after{
  content:"";position:absolute;right:36px;top:0;width:0;height:0;
}
.nav-mega:hover .mega-panel,
.nav-mega:focus-within .mega-panel,
.nav-mega.is-open .mega-panel{opacity:1;visibility:visible;transform:translateY(0);}
.mega-inner{display:grid;grid-template-columns:1.1fr 1.1fr 1fr;}
.mega-col{padding:24px 22px;}
.mega-col + .mega-col{border-left:1px solid var(--line);}
.mega-title{
  font-size:12px;font-weight:700;letter-spacing:.1em;
  color:var(--muted);margin-bottom:14px;
}
.mega-list li + li{margin-top:4px;}
.mega-list a{
  display:flex;align-items:center;justify-content:space-between;gap:10px;
  padding:8px 10px;border-radius:8px;font-size:14px;color:var(--ink-2);
  position:relative;
}
.mega-list a::before{
  content:"";position:absolute;left:0;top:50%;transform:translateY(-50%);
  width:2px;height:0;background:var(--primary);border-radius:2px;transition:height .2s ease;
}
.mega-list a:hover{background:var(--primary-soft);color:var(--primary);}
.mega-list a:hover::before{height:18px;}
.mega-list .count{font-size:11.5px;color:var(--muted);background:var(--bg);border:1px solid var(--line);border-radius:var(--radius-pill);padding:2px 8px;white-space:nowrap;}
.mega-post{display:block;padding:9px 10px;border-radius:8px;}
.mega-post strong{display:block;font-size:14px;font-weight:600;color:var(--ink);line-height:1.5;}
.mega-post span{font-size:12.5px;color:var(--muted);}
.mega-post:hover{background:var(--primary-soft);}
.mega-post:hover strong{color:var(--primary);}
.mega-card{
  display:block;border:1px solid var(--line);border-radius:var(--radius);
  overflow:hidden;background:#fff;transition:box-shadow .22s ease,transform .22s ease;
}
.mega-card img{width:100%;height:104px;object-fit:cover;}
.mega-card-inner{padding:12px 14px 14px;}
.mega-card .tag{display:inline-block;font-size:11.5px;color:var(--primary);background:var(--primary-soft);border-radius:var(--radius-pill);padding:2px 9px;margin-bottom:8px;}
.mega-card strong{display:block;font-size:14px;color:var(--ink);margin-bottom:6px;}
.mega-card .arrow{font-size:12.5px;color:var(--accent);font-weight:600;}
.mega-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-md);}
.nav-toggle{
  display:none;margin-left:auto;
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-sm);
  padding:9px 13px;font-size:14px;color:var(--ink-2);cursor:pointer;
}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:12px 22px;border-radius:var(--radius-sm);
  font-size:15px;font-weight:600;line-height:1;
  border:1px solid transparent;cursor:pointer;
  transition:transform .18s ease,box-shadow .2s ease,background-color .2s ease,color .2s ease,border-color .2s ease;
  text-decoration:none;white-space:nowrap;
}
.btn-primary{background:var(--primary);color:#fff;box-shadow:0 6px 16px rgba(27,77,107,.22);}
.btn-primary:hover{background:#173F58;color:#fff;transform:translateY(-2px);box-shadow:0 10px 22px rgba(27,77,107,.28);}
.btn-outline{background:#fff;color:var(--primary);border-color:var(--primary-line);}
.btn-outline:hover{background:var(--primary-soft);color:var(--primary);transform:translateY(-2px);}
.btn-accent{background:var(--accent);color:#fff;box-shadow:0 6px 16px rgba(201,138,46,.24);}
.btn-accent:hover{background:#B57A22;color:#fff;transform:translateY(-2px);}
.btn-ghost{background:transparent;color:var(--primary);border-color:transparent;padding:12px 6px;}
.btn-ghost:hover{color:var(--accent);}
.btn:active{transform:translateY(0);}
.btn-block{width:100%;}

/* ---------- hero ---------- */
.cat-hero{
  position:relative;overflow:hidden;
  background-image:linear-gradient(115deg,rgba(18,56,79,.94) 0%,rgba(27,77,107,.86) 52%,rgba(16,42,56,.72) 100%),url("/assets/images/backpic/back-1.webp");
  background-size:cover;background-position:center;
  color:#fff;
  padding:70px 0 76px;
}
.cat-hero-grid{display:grid;grid-template-columns:1.15fr .85fr;gap:48px;align-items:center;}
.cat-hero .eyebrow{background:rgba(255,255,255,.14);border-color:rgba(255,255,255,.28);color:#EAF2F7;}
.cat-hero h1{color:#fff;font-size:44px;}
.cat-hero .lede{margin-top:16px;font-size:16.5px;line-height:1.85;color:rgba(255,255,255,.88);max-width:620px;}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:28px;}
.cat-hero .btn-outline{background:rgba(255,255,255,.10);color:#fff;border-color:rgba(255,255,255,.42);}
.cat-hero .btn-outline:hover{background:rgba(255,255,255,.2);color:#fff;}
.hero-metrics{display:flex;flex-wrap:wrap;gap:14px;margin-top:34px;}
.metric{
  background:rgba(255,255,255,.10);
  border:1px solid rgba(255,255,255,.2);
  border-radius:var(--radius);padding:12px 18px;min-width:150px;
}
.metric strong{display:block;font-size:16px;font-weight:700;color:#fff;}
.metric span{font-size:12.5px;color:rgba(255,255,255,.74);}
.hero-visual{
  border-radius:var(--radius-lg);overflow:hidden;
  border:1px solid rgba(255,255,255,.22);
  box-shadow:0 24px 50px rgba(6,22,32,.4);
  aspect-ratio:16/11;background:#0d2430;
}
.hero-visual img{width:100%;height:100%;object-fit:cover;}

/* ---------- breadcrumb ---------- */
.crumb{background:#fff;border-bottom:1px solid var(--line);}
.crumb-inner{display:flex;align-items:center;gap:10px;font-size:13.5px;color:var(--muted);padding:14px 0;flex-wrap:wrap;}
.crumb a{color:var(--muted);}
.crumb a:hover{color:var(--primary);}
.crumb .sep{color:#B7C6D0;}
.crumb .now{color:var(--ink);font-weight:600;}

/* ---------- layout two column ---------- */
.layout-split{display:grid;grid-template-columns:270px minmax(0,1fr);gap:36px;align-items:start;}
.side-col{position:sticky;top:96px;display:flex;flex-direction:column;gap:20px;}
.side-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius);
  box-shadow:var(--shadow-sm);padding:20px;
}
.side-card h3{font-size:15px;letter-spacing:.02em;margin-bottom:14px;color:var(--ink);}
.anchor-list li + li{margin-top:4px;}
.anchor-list a{
  display:flex;align-items:center;gap:10px;
  padding:9px 10px;border-radius:8px;font-size:14px;color:var(--ink-2);
  border-left:2px solid transparent;transition:all .2s ease;
}
.anchor-list a i{font-size:11px;color:var(--primary-line);}
.anchor-list a:hover{background:var(--primary-soft);color:var(--primary);border-left-color:var(--primary);}
.anchor-list a:hover i{color:var(--accent);}
.side-cta{
  background:linear-gradient(150deg,var(--primary) 0%,var(--primary-dark) 100%);
  color:#fff;border-radius:var(--radius);padding:22px;box-shadow:var(--shadow-md);
}
.side-cta h3{font-size:16px;color:#fff;margin-bottom:8px;}
.side-cta p{font-size:13.5px;line-height:1.7;color:rgba(255,255,255,.82);margin-bottom:16px;}
.side-cta .btn{background:#fff;color:var(--primary);width:100%;}
.side-cta .btn:hover{background:var(--accent);color:#fff;transform:translateY(-2px);}
.side-note{font-size:12.5px;color:var(--muted);line-height:1.7;}

/* ---------- cards ---------- */
.cards-2{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:24px;}
.card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--radius);
  box-shadow:var(--shadow-sm);overflow:hidden;
  display:flex;flex-direction:column;
  transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease;
}
.card:hover{transform:translateY(-2px);box-shadow:var(--shadow-md);border-color:var(--primary-line);}
.card-media{position:relative;aspect-ratio:16/10;background:var(--primary-soft);overflow:hidden;}
.card-media img{width:100%;height:100%;object-fit:cover;transition:transform .4s ease;}
.card:hover .card-media img{transform:scale(1.04);}
.badge{
  display:inline-flex;align-items:center;gap:6px;
  font-size:12px;font-weight:600;
  border-radius:var(--radius-pill);padding:4px 11px;
  background:var(--primary-soft);color:var(--primary);border:1px solid var(--primary-line);
}
.badge-accent{background:var(--accent-soft);color:#96631A;border-color:#EEDCBC;}
.badge-float{position:absolute;left:14px;top:14px;background:rgba(255,255,255,.94);border-color:transparent;box-shadow:var(--shadow-sm);}
.card-body{padding:20px 22px 22px;display:flex;flex-direction:column;gap:10px;flex:1;}
.card-body h3{font-size:18px;}
.card-body p{font-size:14.5px;color:var(--muted);line-height:1.75;}
.card-spec{
  margin-top:auto;padding-top:14px;border-top:1px dashed var(--line);
  display:flex;flex-wrap:wrap;gap:8px 18px;font-size:13px;color:var(--ink-2);
}
.card-spec span i{color:var(--accent);margin-right:6px;font-size:12px;}

/* ---------- compare ---------- */
.compare-wrap{background:#fff;border:1px solid var(--line);border-radius:var(--radius-lg);box-shadow:var(--shadow-sm);overflow:hidden;}
.compare-row{
  display:grid;grid-template-columns:1.2fr 1fr 1fr 1.2fr;
  gap:12px;padding:16px 24px;align-items:center;
  border-bottom:1px solid var(--line);font-size:14.5px;
  transition:background-color .2s ease;
}
.compare-row:last-child{border-bottom:0;}
.compare-row:hover{background:var(--primary-soft);}
.compare-head{
  background:var(--primary);color:#fff;font-size:13px;font-weight:600;letter-spacing:.04em;
  padding:14px 24px;
}
.compare-head:hover{background:var(--primary);}
.compare-row .c-name{font-weight:600;color:var(--ink);display:flex;align-items:center;gap:8px;}
.compare-row .c-name i{color:var(--accent);font-size:13px;}
.compare-row .c-dim{color:var(--muted);}

/* ---------- steps ---------- */
.steps{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:22px;}
.step{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius);
  padding:24px 22px;box-shadow:var(--shadow-sm);position:relative;
  transition:transform .22s ease,box-shadow .22s ease;
}
.step:hover{transform:translateY(-2px);box-shadow:var(--shadow-md);}
.step-no{
  width:34px;height:34px;border-radius:11px;
  background:var(--primary-soft);color:var(--primary);
  display:flex;align-items:center;justify-content:center;
  font-size:14px;font-weight:700;margin-bottom:14px;
}
.step h3{font-size:17px;margin-bottom:8px;}
.step p{font-size:14px;color:var(--muted);line-height:1.72;}
.step::after{
  content:"";position:absolute;right:-11px;top:42px;width:22px;height:1px;background:var(--line);
}
.steps .step:last-child::after{display:none;}

/* ---------- faq ---------- */
.faq-list{display:flex;flex-direction:column;gap:12px;}
.faq-item{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius);
  box-shadow:var(--shadow-sm);overflow:hidden;
  transition:border-color .2s ease,box-shadow .2s ease;
}
.faq-item[open]{border-color:var(--primary-line);box-shadow:var(--shadow-md);}
.faq-item summary{
  list-style:none;cursor:pointer;
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:18px 24px;font-size:16px;font-weight:600;color:var(--ink);
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary::after{
  content:"+";font-size:20px;font-weight:400;color:var(--primary);
  flex:0 0 auto;line-height:1;
}
.faq-item[open] summary::after{content:"−";color:var(--accent);}
.faq-item summary:hover{color:var(--primary);}
.faq-answer{padding:0 24px 20px;font-size:14.5px;color:var(--muted);line-height:1.85;background:#FBFDFE;border-top:1px solid var(--line);padding-top:16px;}

/* ---------- guarantee bar ---------- */
.guard-bar{
  background:var(--primary-soft);border:1px solid var(--primary-line);
  border-radius:var(--radius);padding:22px 26px;
  display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:18px;
}
.guard{display:flex;gap:12px;align-items:flex-start;}
.guard i{
  width:38px;height:38px;flex:0 0 auto;border-radius:11px;
  background:#fff;color:var(--primary);
  display:flex;align-items:center;justify-content:center;font-size:15px;
  box-shadow:var(--shadow-sm);
}
.guard strong{display:block;font-size:14.5px;color:var(--ink);}
.guard span{font-size:13px;color:var(--muted);line-height:1.6;}

/* ---------- cta band ---------- */
.cta-band{
  background:linear-gradient(120deg,var(--primary) 0%,var(--primary-dark) 100%);
  border-radius:var(--radius-lg);padding:44px 48px;color:#fff;
  display:flex;align-items:center;justify-content:space-between;gap:32px;
  box-shadow:0 18px 40px rgba(16,42,56,.18);
}
.cta-band h2{color:#fff;font-size:26px;}
.cta-band p{color:rgba(255,255,255,.84);margin-top:10px;font-size:15px;max-width:560px;}
.cta-band .btn{background:#fff;color:var(--primary);}
.cta-band .btn:hover{background:var(--accent);color:#fff;transform:translateY(-2px);}

/* ---------- footer ---------- */
.site-footer{background:#102A38;color:rgba(255,255,255,.76);margin-top:80px;padding:60px 0 0;}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.3fr;gap:36px;}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:14px;}
.footer-brand .brand-mark{background:linear-gradient(140deg,#2A6E92,#1B4D6B);}
.footer-brand strong{color:#fff;font-size:16px;}
.site-footer p{font-size:14px;line-height:1.8;color:rgba(255,255,255,.68);}
.site-footer h4{
  font-size:14px;font-weight:700;color:#fff;margin-bottom:16px;
  padding-left:12px;position:relative;
}
.site-footer h4::before{
  content:"";position:absolute;left:0;top:6px;width:4px;height:14px;border-radius:2px;
  background:var(--accent);
}
.footer-links li + li{margin-top:9px;}
.footer-links a{font-size:14px;color:rgba(255,255,255,.72);}
.footer-links a:hover{color:var(--accent);}
.subscribe-form{display:flex;gap:8px;margin-bottom:8px;}
.subscribe-form input{
  flex:1;min-width:0;height:44px;border-radius:8px;border:1px solid rgba(255,255,255,.22);
  background:rgba(255,255,255,.07);color:#fff;padding:0 14px;font-size:14px;
}
.subscribe-form input::placeholder{color:rgba(255,255,255,.5);}
.subscribe-form input:focus{outline:2px solid var(--accent);outline-offset:1px;background:rgba(255,255,255,.12);}
.subscribe-form button{
  height:44px;padding:0 18px;border-radius:8px;border:0;cursor:pointer;
  background:var(--accent);color:#fff;font-size:14px;font-weight:600;white-space:nowrap;
  transition:background-color .2s ease,transform .18s ease;
}
.subscribe-form button:hover{background:#B57A22;transform:translateY(-2px);}
.form-note{font-size:12.5px;color:rgba(255,255,255,.55);min-height:20px;}
.form-note.is-ok{color:#7FD1A8;}
.form-note.is-err{color:#F0A08E;}
.footer-bottom{
  margin-top:44px;border-top:1px solid rgba(255,255,255,.12);
  padding:20px 0 26px;display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13px;color:rgba(255,255,255,.55);
}

/* ---------- responsive ---------- */
@media (max-width:1199px){
  h1{font-size:38px;}
  .cat-hero h1{font-size:38px;}
  .mega-panel{width:640px;}
  .layout-split{grid-template-columns:250px minmax(0,1fr);gap:28px;}
}
@media (max-width:991px){
  :root{--space-section:60px;}
  .container{padding:0 24px;}
  .nav-toggle{display:inline-flex;}
  .main-nav{
    position:absolute;left:0;right:0;top:100%;
    background:#fff;border-bottom:1px solid var(--line);
    box-shadow:var(--shadow-md);
    flex-direction:column;align-items:stretch;gap:2px;
    padding:12px 20px 20px;margin-left:0;
    max-height:0;overflow:hidden;visibility:hidden;
    transition:max-height .28s ease,visibility .28s ease,padding .2s ease;
  }
  .main-nav.is-open{max-height:640px;overflow-y:auto;visibility:visible;}
  .nav-link{width:100%;justify-content:space-between;padding:12px 10px;font-size:15px;}
  .nav-mega{width:100%;}
  .mega-panel{
    position:static;width:100%;opacity:1;visibility:hidden;display:none;
    transform:none;box-shadow:none;border:1px solid var(--line);border-radius:var(--radius);
    margin-top:6px;
  }
  .nav-mega:hover .mega-panel{opacity:1;}
  .nav-mega.is-open .mega-panel{display:block;visibility:visible;}
  .mega-inner{grid-template-columns:1fr;}
  .mega-col + .mega-col{border-left:0;border-top:1px solid var(--line);}
  .cat-hero{padding:52px 0 56px;}
  .cat-hero-grid{grid-template-columns:1fr;gap:32px;}
  .hero-visual{max-width:520px;}
  .layout-split{grid-template-columns:1fr;}
  .side-col{position:static;}
  .steps{grid-template-columns:repeat(2,minmax(0,1fr));}
  .step::after{display:none;}
  .guard-bar{grid-template-columns:repeat(2,minmax(0,1fr));}
  .footer-grid{grid-template-columns:1fr 1fr;gap:30px;}
  .cta-band{flex-direction:column;align-items:flex-start;padding:34px 28px;}
}
@media (max-width:767px){
  .container{padding:0 20px;}
  h1{font-size:30px;}
  h2{font-size:23px;}
  .cat-hero h1{font-size:30px;}
  .cat-hero .lede{font-size:15.5px;}
  .cards-2{grid-template-columns:1fr;}
  .compare-head{display:none;}
  .compare-row{grid-template-columns:1fr 1fr;padding:14px 18px;row-gap:6px;}
  .compare-row .c-name{grid-column:1 / -1;font-size:15px;}
  .compare-row .c-dim::before{content:attr(data-label);display:block;font-size:11.5px;color:#9CAEB9;margin-bottom:2px;}
  .steps{grid-template-columns:1fr;}
  .guard-bar{grid-template-columns:1fr;padding:20px;}
  .faq-item summary{font-size:15px;padding:16px 18px;}
  .faq-answer{padding:14px 18px 18px;}
  .footer-grid{grid-template-columns:1fr;}
  .brand-text{font-size:15px;}
  .hero-metrics{gap:10px;}
  .metric{min-width:130px;padding:10px 14px;}
  .footer-bottom{flex-direction:column;gap:8px;}
}
@media (max-width:520px){
  .hero-actions{flex-direction:column;align-items:stretch;}
  .hero-actions .btn{width:100%;}
  .compare-row{grid-template-columns:1fr;}
  .compare-row .c-dim{display:flex;gap:8px;}
}

/* roulang page: category4 */
:root{
  --primary:#1B4D6B;
  --primary-dark:#123A52;
  --primary-soft:#EAF2F7;
  --accent:#C98A2E;
  --accent-soft:#FBF3E4;
  --accent-deep:#9A6A1E;
  --dark:#102A38;
  --bg:#F7F9FB;
  --card:#FFFFFF;
  --text:#1B2A33;
  --muted:#5A6B76;
  --line:#E4EBF0;
  --radius:14px;
  --radius-sm:10px;
  --shadow:0 2px 6px rgba(16,42,56,.05);
  --shadow-hover:0 10px 24px rgba(16,42,56,.10);
  --max:1200px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC",-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Helvetica,Arial,sans-serif;
  font-size:16px;
  line-height:1.75;
  color:var(--text);
  background:var(--bg);
}
img{max-width:100%;display:block;border:0}
a{color:inherit;text-decoration:none;transition:color .2s ease,background-color .2s ease,border-color .2s ease}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4,h5{margin:0;letter-spacing:-.01em;line-height:1.28;font-weight:700}
p{margin:0 0 12px}
button{font-family:inherit;cursor:pointer;border:0;background:none;color:inherit}
input,select,textarea{font-family:inherit;font-size:15px;color:var(--text)}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px}
.container{max-width:var(--max);margin:0 auto;padding:0 32px;width:100%}
.section{padding:78px 0}
.section-head{max-width:760px;margin-bottom:38px}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12.5px;font-weight:700;letter-spacing:.06em;
  color:var(--primary);background:var(--primary-soft);
  padding:5px 12px;border-radius:999px;margin-bottom:14px;
}
.section-head h2{font-size:clamp(24px,2.4vw,30px);color:var(--primary-dark);margin-bottom:12px}
.section-head p{color:var(--muted);font-size:15.5px;margin:0}
.text-accent{color:var(--accent)}

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:80;
  background:#fff;
  border-bottom:1px solid var(--line);
  box-shadow:0 1px 0 rgba(16,42,56,.03);
}
.header-inner{display:flex;align-items:center;gap:20px;min-height:76px}
.brand{display:inline-flex;align-items:center;gap:10px;flex:0 0 auto}
.brand-mark{
  width:34px;height:34px;border-radius:10px;
  background:linear-gradient(135deg,var(--primary),var(--primary-dark));
  color:#fff;font-weight:700;font-size:16px;
  display:grid;place-items:center;letter-spacing:0;
  box-shadow:0 4px 10px rgba(27,77,107,.28);
}
.brand-text{font-size:17px;font-weight:700;color:var(--primary-dark);letter-spacing:-.01em;white-space:nowrap}
.main-nav{display:flex;align-items:center;gap:2px;margin-left:auto}
.nav-link{
  position:relative;display:inline-flex;align-items:center;gap:6px;
  padding:9px 13px;border-radius:9px;
  font-size:15px;font-weight:500;color:var(--text);white-space:nowrap;
  transition:color .2s ease,background-color .2s ease;
}
.nav-link:hover{color:var(--primary);background:var(--primary-soft)}
.nav-link.is-active{color:var(--primary);font-weight:600}
.nav-link.is-active::after{
  content:"";position:absolute;left:13px;right:13px;bottom:2px;height:3px;
  border-radius:3px;background:var(--accent);
}
.mega-trigger{background:transparent;border:0}
.mega-trigger i{font-size:11px;color:var(--muted);transition:transform .2s ease}
.nav-mega{position:relative}
.nav-mega:hover .mega-trigger i,
.nav-mega.is-open .mega-trigger i{transform:rotate(180deg)}
.mega-panel{
  position:absolute;top:calc(100% + 16px);right:0;width:660px;
  background:#fff;border:1px solid var(--line);
  border-radius:0 0 var(--radius) var(--radius);
  box-shadow:0 20px 44px rgba(16,42,56,.16);
  opacity:0;visibility:hidden;transform:translateY(8px);
  transition:opacity .22s ease,transform .22s ease,visibility .22s;
  overflow:hidden;
}
.mega-panel::before{
  content:"";position:absolute;inset:0 0 auto 0;height:3px;
  background:linear-gradient(90deg,var(--primary),var(--accent));
}
.nav-mega:hover .mega-panel,
.nav-mega:focus-within .mega-panel,
.nav-mega.is-open .mega-panel{opacity:1;visibility:visible;transform:translateY(0)}
.mega-inner{display:grid;grid-template-columns:1fr 1fr 1.05fr;padding-top:3px}
.mega-col{padding:22px 18px}
.mega-col + .mega-col{border-left:1px solid var(--line)}
.mega-title{font-size:12px;font-weight:700;letter-spacing:.08em;color:var(--muted);margin-bottom:12px}
.mega-list li a{
  display:flex;align-items:center;justify-content:space-between;gap:10px;
  padding:8px 10px;border-radius:8px;font-size:14px;
  border-left:2px solid transparent;
}
.mega-list li a:hover{background:var(--primary-soft);color:var(--primary);border-left-color:var(--primary)}
.mega-list .count{font-size:12px;color:var(--muted);white-space:nowrap}
.mega-post{display:block;padding:10px;border-radius:10px}
.mega-post:hover{background:var(--bg)}
.mega-post strong{display:block;font-size:14px;font-weight:600;line-height:1.5}
.mega-post span{font-size:12px;color:var(--muted)}
.mega-post + .mega-post{margin-top:4px}
.mega-card{display:block;border:1px solid var(--line);border-radius:12px;overflow:hidden;transition:box-shadow .2s ease,transform .2s ease}
.mega-card:hover{box-shadow:var(--shadow-hover);transform:translateY(-2px)}
.mega-card .mega-thumb{aspect-ratio:16/9;overflow:hidden;background:var(--primary-soft)}
.mega-card .mega-thumb img{width:100%;height:100%;object-fit:cover}
.mega-card .mega-cap{display:flex;align-items:center;justify-content:space-between;gap:10px;padding:12px 14px;font-size:13.5px;font-weight:600}
.mega-card .mega-cap i{color:var(--accent);font-size:12px}
.menu-toggle{
  display:none;margin-left:auto;width:44px;height:44px;border-radius:11px;
  border:1px solid var(--line);background:#fff;color:var(--primary);
  align-items:center;justify-content:center;font-size:17px;
}
.menu-toggle:hover{background:var(--primary-soft)}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:46px;padding:0 22px;border-radius:var(--radius-sm);
  font-size:15px;font-weight:600;line-height:1;
  border:1px solid transparent;white-space:nowrap;
  transition:background-color .2s ease,color .2s ease,transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.btn-primary{background:var(--primary);color:#fff}
.btn-primary:hover{background:var(--primary-dark);transform:translateY(-2px);box-shadow:0 10px 20px rgba(27,77,107,.26)}
.btn-ghost{border-color:var(--primary);color:var(--primary);background:#fff}
.btn-ghost:hover{background:var(--primary-soft);transform:translateY(-2px)}
.btn-light{background:#fff;color:var(--primary)}
.btn-light:hover{transform:translateY(-2px);box-shadow:0 12px 24px rgba(0,0,0,.2)}
.btn-outline-light{border-color:rgba(255,255,255,.66);color:#fff}
.btn-outline-light:hover{background:rgba(255,255,255,.16);transform:translateY(-2px)}
.btn-block{width:100%}
.btn-sm{height:38px;padding:0 16px;font-size:13.5px}

/* ---------- hero ---------- */
.page-hero{
  position:relative;color:#fff;
  background:linear-gradient(115deg,rgba(16,42,56,.94) 0%,rgba(27,77,107,.86) 58%,rgba(27,77,107,.62) 100%),
             url("/assets/images/backpic/back-1.webp") center/cover no-repeat;
  padding:64px 0 68px;
  overflow:hidden;
}
.page-hero::after{
  content:"";position:absolute;right:-120px;bottom:-140px;width:420px;height:420px;
  border-radius:50%;background:radial-gradient(circle,rgba(201,138,46,.24),transparent 68%);
  pointer-events:none;
}
.crumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:rgba(255,255,255,.68);margin-bottom:20px}
.crumb a:hover{color:#fff}
.crumb i{font-size:10px;opacity:.7}
.crumb .now{color:rgba(255,255,255,.94)}
.hero-grid{position:relative;z-index:2;display:grid;grid-template-columns:1.15fr .85fr;gap:48px;align-items:center}
.hero-tag{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12.5px;font-weight:700;letter-spacing:.06em;
  padding:6px 13px;border-radius:999px;
  background:rgba(201,138,46,.18);color:#F0C579;
  border:1px solid rgba(201,138,46,.35);margin-bottom:18px;
}
.page-hero h1{font-size:clamp(28px,3.6vw,42px);line-height:1.22;margin-bottom:16px;letter-spacing:-.01em}
.page-hero h1 span{color:#F0C579}
.hero-sub{font-size:16.5px;color:rgba(255,255,255,.84);max-width:620px;margin-bottom:26px}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-bottom:30px}
.hero-stats{display:flex;flex-wrap:wrap;gap:26px}
.hero-stat{position:relative;padding-left:14px}
.hero-stat::before{content:"";position:absolute;left:0;top:6px;bottom:6px;width:3px;border-radius:3px;background:var(--accent)}
.hero-stat strong{display:block;font-size:15px;font-weight:700;color:#fff}
.hero-stat span{font-size:13px;color:rgba(255,255,255,.66)}
.hero-panel{
  background:rgba(255,255,255,.97);color:var(--text);
  border-radius:16px;padding:22px 22px 18px;
  box-shadow:0 22px 48px rgba(8,24,34,.34);
}
.hero-panel h3{font-size:15px;color:var(--primary-dark);display:flex;align-items:center;gap:8px;margin-bottom:14px}
.hero-panel h3 i{color:var(--accent)}
.hero-list li{
  display:flex;align-items:flex-start;justify-content:space-between;gap:14px;
  padding:11px 0;border-bottom:1px dashed var(--line);font-size:14px;
}
.hero-list li:last-child{border-bottom:0}
.hero-list .hl-title{font-weight:600;color:var(--text)}
.hero-list .hl-sub{display:block;font-size:12.5px;color:var(--muted);font-weight:400;margin-top:2px}
.pill{
  flex:0 0 auto;font-size:11.5px;font-weight:700;
  padding:3px 9px;border-radius:999px;white-space:nowrap;
}
.pill-gold{background:var(--accent-soft);color:var(--accent-deep)}
.pill-blue{background:var(--primary-soft);color:var(--primary)}
.pill-line{background:#F1F5F8;color:var(--muted)}
.hero-panel .panel-note{margin:14px 0 0;font-size:12.5px;color:var(--muted);line-height:1.6}

/* ---------- chips ---------- */
.chip-row{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:30px}
.chip{
  padding:8px 16px;border-radius:999px;background:#fff;
  border:1px solid var(--line);font-size:14px;color:var(--muted);
  transition:all .2s ease;
}
.chip:hover{color:var(--primary);border-color:var(--primary);box-shadow:var(--shadow)}
.chip.is-on{background:var(--primary);border-color:var(--primary);color:#fff;font-weight:600}

/* ---------- waterfall ---------- */
.waterfall{column-count:2;column-gap:24px}
.w-card{
  break-inside:avoid;display:block;background:#fff;border:1px solid var(--line);
  border-radius:var(--radius);box-shadow:var(--shadow);overflow:hidden;
  margin-bottom:24px;transition:transform .22s ease,box-shadow .22s ease;
}
.w-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-hover)}
.w-thumb{aspect-ratio:16/9;overflow:hidden;background:var(--primary-soft)}
.w-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .4s ease}
.w-card:hover .w-thumb img{transform:scale(1.04)}
.w-body{padding:20px 22px 22px}
.w-badge{
  display:inline-block;font-size:12px;font-weight:700;
  padding:3px 10px;border-radius:999px;
  background:var(--accent-soft);color:var(--accent-deep);margin-bottom:10px;
}
.w-badge.blue{background:var(--primary-soft);color:var(--primary)}
.w-body h3{font-size:19px;font-weight:600;color:var(--primary-dark);margin-bottom:8px}
.w-body p{font-size:14.5px;color:var(--muted);margin-bottom:14px}
.w-facts{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:16px}
.w-facts span{
  font-size:12.5px;color:var(--primary);background:var(--primary-soft);
  padding:3px 10px;border-radius:6px;
}
.w-meta{
  display:flex;align-items:center;justify-content:space-between;gap:12px;
  border-top:1px solid var(--line);padding-top:14px;
  font-size:13px;color:var(--muted);
}
.w-meta a{color:var(--primary);font-weight:600;display:inline-flex;align-items:center;gap:6px}
.w-meta a:hover{color:var(--accent)}
.w-meta a i{font-size:11px;transition:transform .2s ease}
.w-meta a:hover i{transform:translateX(3px)}

/* ---------- feature ---------- */
.feature{background:#fff;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.feature-grid{display:grid;grid-template-columns:1.02fr .98fr;gap:52px;align-items:center}
.feature-media{aspect-ratio:4/3;border-radius:18px;overflow:hidden;box-shadow:0 16px 36px rgba(16,42,56,.14)}
.feature-media img{width:100%;height:100%;object-fit:cover}
.feature-list{margin-top:22px}
.feature-list li{display:flex;gap:14px;padding:14px 0;border-bottom:1px dashed var(--line)}
.feature-list li:last-child{border-bottom:0;padding-bottom:0}
.fl-icon{
  flex:0 0 auto;width:36px;height:36px;border-radius:11px;
  display:grid;place-items:center;background:var(--primary-soft);color:var(--primary);font-size:15px;
}
.feature-list strong{display:block;font-size:15.5px;font-weight:600;color:var(--primary-dark);margin-bottom:3px}
.feature-list p{margin:0;font-size:14px;color:var(--muted)}

/* ---------- steps ---------- */
.step-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.step{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius);
  padding:26px 24px;box-shadow:var(--shadow);
  transition:transform .22s ease,box-shadow .22s ease;
}
.step:hover{transform:translateY(-2px);box-shadow:var(--shadow-hover)}
.step-num{
  width:32px;height:32px;border-radius:9px;display:grid;place-items:center;
  background:var(--primary);color:#fff;font-size:14px;font-weight:700;margin-bottom:16px;
}
.step h3{font-size:17.5px;font-weight:600;color:var(--primary-dark);margin-bottom:8px}
.step p{font-size:14.5px;color:var(--muted);margin:0}

/* ---------- assure band ---------- */
.assure-band{background:var(--primary-soft);padding:38px 0}
.assure-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.assure-item{display:flex;align-items:flex-start;gap:14px}
.assure-item i{
  flex:0 0 auto;width:42px;height:42px;border-radius:12px;
  display:grid;place-items:center;background:#fff;color:var(--primary);font-size:17px;
  box-shadow:0 4px 10px rgba(27,77,107,.08);
}
.assure-item strong{display:block;font-size:15px;font-weight:600;color:var(--primary-dark);margin-bottom:3px}
.assure-item span{font-size:13.5px;color:var(--muted);line-height:1.6}

/* ---------- faq ---------- */
.faq-list{max-width:880px}
.faq-item{
  background:#fff;border:1px solid var(--line);border-radius:12px;
  margin-bottom:12px;overflow:hidden;transition:box-shadow .2s ease;
}
.faq-item:hover{box-shadow:var(--shadow)}
.faq-item summary{
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:18px 22px;font-size:16px;font-weight:600;color:var(--primary-dark);
  cursor:pointer;list-style:none;
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{
  content:"+";flex:0 0 auto;font-size:20px;font-weight:400;color:var(--primary);line-height:1;
}
.faq-item[open] summary{background:var(--bg)}
.faq-item[open] summary::after{content:"–"}
.faq-body{padding:4px 22px 20px;background:var(--bg);font-size:15px;color:var(--muted)}
.faq-body p:last-child{margin-bottom:0}

/* ---------- form ---------- */
.form-section{padding-bottom:88px}
.form-wrap{
  display:grid;grid-template-columns:.92fr 1.08fr;gap:48px;
  background:#fff;border:1px solid var(--line);border-radius:18px;
  padding:42px;box-shadow:0 12px 32px rgba(16,42,56,.07);
}
.form-side h2{font-size:clamp(22px,2.2vw,27px);color:var(--primary-dark);margin-bottom:12px}
.form-side > p{color:var(--muted);font-size:15px}
.form-points{margin-top:22px}
.form-points li{display:flex;gap:10px;font-size:14.5px;color:var(--muted);padding:7px 0}
.form-points i{color:var(--accent);margin-top:4px;font-size:13px}
.field{margin-bottom:16px}
.field label{display:block;font-size:13.5px;font-weight:600;color:var(--primary-dark);margin-bottom:7px}
.field input,.field select,.field textarea{
  width:100%;height:46px;padding:0 14px;border:1px solid var(--line);
  border-radius:8px;background:#fff;transition:border-color .2s ease,box-shadow .2s ease;
}
.field textarea{height:auto;min-height:112px;padding:12px 14px;line-height:1.7;resize:vertical}
.field input:focus,.field select:focus,.field textarea:focus{
  outline:none;border-color:var(--primary);box-shadow:0 0 0 3px rgba(27,77,107,.13);
}
.field input::placeholder,.field textarea::placeholder{color:#9AA9B3}
.form-row{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.form-foot{display:flex;flex-wrap:wrap;align-items:center;gap:16px;margin-top:6px}
.form-tip{font-size:13px;color:var(--muted)}
.form-alert{
  display:none;margin-top:14px;padding:11px 14px;border-radius:9px;
  background:var(--primary-soft);color:var(--primary);font-size:13.5px;
}
.form-alert.is-show{display:block}

/* ---------- footer ---------- */
.site-footer{background:var(--dark);color:rgba(255,255,255,.74);padding:62px 0 26px;margin-top:0}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.3fr;gap:34px}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:14px}
.footer-brand strong{color:#fff;font-size:16.5px;font-weight:700;letter-spacing:-.01em}
.site-footer p{font-size:14px;line-height:1.75;color:rgba(255,255,255,.66);margin:0}
.site-footer h4{
  font-size:14px;font-weight:700;color:#fff;margin-bottom:16px;
  display:flex;align-items:center;gap:8px;
}
.site-footer h4::before{content:"";width:14px;height:2px;border-radius:2px;background:var(--accent)}
.footer-links a{display:block;padding:6px 0;font-size:14px;color:rgba(255,255,255,.72)}
.footer-links a:hover{color:var(--accent)}
.subscribe-form{display:flex;gap:8px;margin-top:4px}
.subscribe-form input{
  flex:1 1 auto;min-width:0;height:44px;padding:0 13px;border-radius:8px;
  background:rgba(255,255,255,.07);border:1px solid rgba(255,255,255,.18);
  color:#fff;transition:border-color .2s ease,box-shadow .2s ease;
}
.subscribe-form input::placeholder{color:rgba(255,255,255,.45)}
.subscribe-form input:focus{outline:none;border-color:var(--accent);box-shadow:0 0 0 3px rgba(201,138,46,.18)}
.subscribe-form button{
  flex:0 0 auto;height:44px;padding:0 18px;border-radius:8px;
  background:var(--accent);color:#14232C;font-size:14px;font-weight:700;
  transition:background-color .2s ease,transform .2s ease;
}
.subscribe-form button:hover{background:#D79A3C;transform:translateY(-2px)}
.form-note{font-size:12.5px;color:rgba(255,255,255,.5);margin-top:10px}
.footer-bottom{
  display:flex;flex-wrap:wrap;justify-content:space-between;gap:12px;
  border-top:1px solid rgba(255,255,255,.1);
  margin-top:40px;padding-top:20px;
  font-size:13px;color:rgba(255,255,255,.5);
}

/* ---------- responsive ---------- */
@media (max-width:1199px){
  .container{padding:0 26px}
  .mega-panel{width:600px}
  .hero-grid{gap:34px}
}
@media (max-width:1023px){
  .menu-toggle{display:inline-flex}
  .main-nav{
    position:absolute;left:0;right:0;top:100%;
    flex-direction:column;align-items:stretch;gap:4px;
    background:#fff;border-bottom:1px solid var(--line);
    box-shadow:0 18px 34px rgba(16,42,56,.12);
    padding:0 20px;margin:0;
    max-height:0;overflow:hidden;opacity:0;visibility:hidden;
    transition:max-height .28s ease,opacity .2s ease,padding .28s ease,visibility .2s;
  }
  .main-nav.is-open{max-height:78vh;overflow-y:auto;opacity:1;visibility:visible;padding:14px 20px 22px}
  .nav-link{padding:13px 12px;border-radius:10px;font-size:15.5px}
  .nav-link.is-active::after{left:12px;right:12px;bottom:6px}
  .nav-mega{width:100%}
  .mega-trigger{width:100%;justify-content:space-between}
  .mega-panel{
    position:static;width:auto;opacity:1;visibility:visible;transform:none;
    box-shadow:none;border:0;border-radius:12px;background:var(--bg);
    max-height:0;overflow:hidden;transition:max-height .3s ease;display:block;
  }
  .mega-panel::before{display:none}
  .nav-mega.is-open .mega-panel{max-height:900px}
  .mega-inner{grid-template-columns:1fr;padding-top:0}
  .mega-col + .mega-col{border-left:0;border-top:1px solid var(--line)}
  .hero-grid{grid-template-columns:1fr}
  .hero-panel{max-width:520px}
  .feature-grid{grid-template-columns:1fr;gap:34px}
  .feature-media{aspect-ratio:16/9}
  .form-wrap{grid-template-columns:1fr;gap:32px;padding:32px}
  .step-grid{grid-template-columns:repeat(2,1fr)}
  .assure-grid{grid-template-columns:repeat(2,1fr)}
  .footer-grid{grid-template-columns:1fr 1fr;gap:30px}
}
@media (max-width:900px){
  .waterfall{column-count:1}
}
@media (max-width:767px){
  .container{padding:0 20px}
  .section{padding:52px 0}
  .header-inner{min-height:68px;gap:12px}
  .brand-text{font-size:15.5px}
  .page-hero{padding:44px 0 50px}
  .hero-stats{gap:18px}
  .hero-actions .btn{flex:1 1 auto;justify-content:center}
  .form-row{grid-template-columns:1fr}
  .form-wrap{padding:24px 20px;border-radius:14px}
  .form-foot .btn{width:100%}
  .subscribe-form{flex-direction:column}
  .subscribe-form button{width:100%}
  .section-head{margin-bottom:28px}
  .footer-bottom{flex-direction:column}
}
@media (max-width:560px){
  .step-grid{grid-template-columns:1fr}
  .assure-grid{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr}
  .hero-panel{padding:18px}
  .w-body{padding:18px 18px 20px}
  .chip{padding:7px 13px;font-size:13.5px}
  .hero-stat strong,.hero-stat span{font-size:13.5px}
}