/* roulang page: index */
:root{
  --primary:#3A7CA5;
  --primary-deep:#2B5E80;
  --primary-soft:#E8F1F8;
  --accent:#FF7A2F;
  --accent-hover:#EA6210;
  --bg:#F6F9FC;
  --card-bg:#FFFFFF;
  --text-1:#1F2D3D;
  --text-2:#4E6072;
  --text-3:#8A9BAE;
  --border:#E3EAF0;
  --line:#EDF2F7;
  --radius-lg:12px;
  --radius-md:10px;
  --radius-sm:8px;
  --shadow-sm:0 2px 8px rgba(31,45,61,.05);
  --shadow-md:0 4px 16px rgba(31,45,61,.08);
  --shadow-lg:0 12px 32px rgba(31,45,61,.12);
  --container:1200px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  background:var(--bg);
  color:var(--text-1);
  font-size:15px;
  line-height:1.7;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
button,input{font-family:inherit}
ul,ol{margin:0;padding:0;list-style:none}
.container{max-width:var(--container);margin:0 auto;padding-left:24px;padding-right:24px}
:focus-visible{outline:2px solid var(--primary);outline-offset:2px;box-shadow:0 0 0 3px rgba(58,124,165,.18)}
::-moz-selection{background:var(--primary-soft);color:var(--primary-deep)}
::selection{background:var(--primary-soft);color:var(--primary-deep)}

/* ===== Buttons ===== */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:44px;padding:0 28px;border-radius:var(--radius-sm);
  font-size:15px;font-weight:600;border:0;cursor:pointer;
  transition:all .2s ease;text-decoration:none;white-space:nowrap;
}
.btn-accent{background:var(--accent);color:#fff;box-shadow:var(--shadow-sm)}
.btn-accent:hover{background:var(--accent-hover);color:#fff;transform:translateY(-1px);box-shadow:var(--shadow-md)}
.btn-accent:focus-visible{outline-color:var(--accent);box-shadow:0 0 0 3px rgba(255,122,47,.22)}
.btn-ghost{background:rgba(255,255,255,.12);color:#fff;border:1px solid rgba(255,255,255,.72)}
.btn-ghost:hover{background:rgba(255,255,255,.24);color:#fff;transform:translateY(-1px)}
.btn-secondary{background:var(--primary-soft);color:var(--primary)}
.btn-secondary:hover{background:var(--primary);color:#fff}
.btn-small{height:38px;padding:0 20px;font-size:14px}

/* ===== Header ===== */
.site-header{
  position:sticky;top:0;z-index:1000;
  height:64px;background:#fff;
  border-bottom:1px solid var(--border);
  box-shadow:0 1px 4px rgba(31,45,61,.04);
}
.header-inner{display:flex;align-items:center;gap:28px;height:64px;position:relative}
.brand{display:inline-flex;align-items:center;gap:10px;flex-shrink:0}
.brand-icon{
  width:32px;height:32px;border-radius:8px;background:var(--primary);
  display:inline-flex;align-items:center;justify-content:center;
  color:#fff;font-size:14px;flex-shrink:0;
  box-shadow:0 2px 6px rgba(58,124,165,.3);
}
.brand-text{font-size:20px;font-weight:700;color:var(--text-1);letter-spacing:.3px}
.main-nav{display:flex;align-items:center;gap:4px;flex:1;min-width:0}
.nav-link{
  position:relative;display:inline-flex;align-items:center;justify-content:center;
  height:64px;padding:0 16px;font-size:15px;font-weight:500;
  color:var(--text-2);transition:color .2s ease;
}
.nav-link:hover{color:var(--primary)}
.nav-link.active{color:var(--primary);font-weight:600}
.nav-link.active::after{
  content:"";position:absolute;left:50%;bottom:0;transform:translateX(-50%);
  width:24px;height:3px;border-radius:99px;background:var(--primary);
}
.header-actions{display:flex;align-items:center;gap:14px;margin-left:auto;flex-shrink:0}
.search-box{
  display:flex;align-items:center;gap:8px;
  width:180px;height:36px;background:#F1F5F9;border-radius:99px;
  padding:0 14px;color:var(--text-3);
  border:2px solid transparent;transition:all .2s ease;
}
.search-box:focus-within{background:#fff;border-color:var(--primary);box-shadow:0 0 0 3px rgba(58,124,165,.12)}
.search-box i{font-size:13px;flex-shrink:0}
.search-box input{border:0;background:transparent;outline:none;width:100%;font-size:13px;color:var(--text-1)}
.search-box input::-webkit-input-placeholder{color:var(--text-3)}
.search-box input::-moz-placeholder{color:var(--text-3)}
.btn-login{
  height:38px;padding:0 24px;border-radius:8px;background:var(--accent);color:#fff;
  font-size:14px;font-weight:600;display:inline-flex;align-items:center;gap:6px;
  border:0;cursor:pointer;transition:all .2s ease;box-shadow:var(--shadow-sm);text-decoration:none;
}
.btn-login:hover{background:var(--accent-hover);color:#fff;transform:translateY(-1px);box-shadow:var(--shadow-md)}
.btn-login:focus-visible{outline-color:var(--accent);box-shadow:0 0 0 3px rgba(255,122,47,.22)}
.hamburger{
  display:none;width:40px;height:40px;border:0;background:transparent;border-radius:8px;
  color:var(--text-2);font-size:18px;cursor:pointer;align-items:center;justify-content:center;
  transition:all .2s ease;margin-left:4px;
}
.hamburger:hover{background:var(--primary-soft);color:var(--primary)}

/* ===== Hero ===== */
.hero{
  position:relative;min-height:520px;display:flex;align-items:center;
  background:#2B5E80 url('/assets/images/backpic/back-1.webp') center/cover no-repeat;
}
.hero::before{
  content:"";position:absolute;inset:0;
  background:linear-gradient(90deg,rgba(17,33,48,.86) 0%,rgba(31,45,61,.58) 55%,rgba(31,45,61,.28) 100%);
}
.hero-content{position:relative;z-index:2;width:100%;padding:80px 0}
.hero-eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;font-weight:600;color:rgba(255,255,255,.92);letter-spacing:1px;
  background:rgba(255,255,255,.12);border-radius:99px;padding:8px 18px;
}
.hero-eyebrow i{color:var(--accent)}
.hero h1{
  margin:20px 0 16px;max-width:720px;
  font-size:42px;line-height:1.3;font-weight:700;color:#fff;letter-spacing:.5px;
}
.hero-sub{
  max-width:600px;font-size:18px;line-height:1.75;color:rgba(255,255,255,.88);margin:0 0 34px;
}
.hero-cta{display:flex;flex-wrap:wrap;gap:16px;align-items:center}
.hero-stats{
  display:inline-flex;align-items:center;gap:32px;margin-top:52px;
  background:rgba(255,255,255,.13);border-radius:99px;padding:14px 32px;
}
.hero-stats .stat{display:flex;flex-direction:column;gap:2px;line-height:1.3}
.hero-stats .stat b{color:#fff;font-size:18px;font-weight:700;font-variant-numeric:tabular-nums}
.hero-stats .stat span{color:rgba(255,255,255,.72);font-size:13px}
.hero-stats .divider{width:1px;height:28px;background:rgba(255,255,255,.25)}

/* ===== Sections ===== */
.section{padding:64px 0}
.section.alt{background:#fff;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:16px;margin-bottom:28px}
.section-title{
  position:relative;margin:0;padding-left:16px;
  font-size:24px;font-weight:700;color:var(--text-1);line-height:1.4;
}
.section-title::before{
  content:"";position:absolute;left:0;top:50%;transform:translateY(-50%);
  width:4px;height:22px;border-radius:99px;background:var(--accent);
}
.section-more{
  font-size:14px;font-weight:500;color:var(--primary);
  display:inline-flex;align-items:center;gap:6px;transition:color .2s ease;
}
.section-more:hover{color:var(--accent)}
.section-more i{font-size:12px}

/* ===== Hot slider ===== */
.slider-wrap{position:relative}
.slider-track{
  display:flex;gap:16px;overflow-x:auto;scroll-snap-type:x mandatory;
  padding:4px 4px 16px;scrollbar-width:none;
}
.slider-track::-webkit-scrollbar{display:none}
.slider-card{
  flex:0 0 240px;scroll-snap-align:start;
  background:var(--card-bg);border-radius:10px;overflow:hidden;
  box-shadow:var(--shadow-sm);transition:box-shadow .25s ease;display:block;
}
.slider-card:hover{box-shadow:var(--shadow-lg)}
.slider-card .cover{aspect-ratio:16/10;overflow:hidden;background:#dce6ee}
.slider-card .cover img{width:100%;height:100%;object-fit:cover;transition:transform .25s ease}
.slider-card:hover .cover img{transform:scale(1.04)}
.slider-card .body{padding:12px 14px 14px}
.slider-card .body h4{
  margin:0;font-size:15px;font-weight:600;color:var(--text-1);
  white-space:nowrap;overflow:hidden;text-overflow:ellipsis;
}
.slider-card:hover .body h4{color:var(--primary)}
.slider-card .meta{
  margin-top:6px;font-size:13px;color:var(--text-3);
  display:flex;align-items:center;gap:6px;font-variant-numeric:tabular-nums;
}
.slider-card .meta i{font-size:12px;color:var(--primary)}
.slider-arrow{
  position:absolute;top:40%;transform:translateY(-50%);z-index:5;
  width:36px;height:36px;border-radius:50%;border:0;cursor:pointer;
  background:#F1F5F9;color:var(--text-2);font-size:14px;
  display:flex;align-items:center;justify-content:center;
  transition:all .2s ease;box-shadow:var(--shadow-sm);
}
.slider-arrow:hover{background:var(--primary);color:#fff;box-shadow:var(--shadow-md)}
.slider-arrow.prev{left:-14px}
.slider-arrow.next{right:-14px}

/* ===== Rec grid ===== */
.card-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.rec-card{
  background:var(--card-bg);border-radius:10px;overflow:hidden;
  box-shadow:var(--shadow-sm);transition:box-shadow .25s ease;
  display:flex;flex-direction:column;
}
.rec-card:hover{box-shadow:var(--shadow-lg)}
.rec-card .thumb{position:relative;aspect-ratio:16/9;overflow:hidden;background:#dce6ee}
.rec-card .thumb img{width:100%;height:100%;object-fit:cover;transition:transform .25s ease}
.rec-card:hover .thumb img{transform:scale(1.04)}
.rec-badge{
  position:absolute;top:12px;left:12px;z-index:2;
  background:rgba(255,255,255,.94);color:var(--primary);
  font-size:12px;font-weight:600;padding:3px 10px;border-radius:99px;
  box-shadow:var(--shadow-sm);
}
.rec-card .content{padding:16px;display:flex;flex-direction:column;flex:1}
.rec-card .content h3{
  margin:0 0 8px;font-size:16px;font-weight:700;color:var(--text-1);line-height:1.5;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.rec-card:hover .content h3{color:var(--primary)}
.rec-card .content p{
  margin:0 0 14px;font-size:14px;color:var(--text-2);line-height:1.65;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.rec-card .foot{
  margin-top:auto;display:flex;justify-content:space-between;align-items:center;
  font-size:13px;color:var(--text-3);border-top:1px solid var(--line);padding-top:12px;
  font-variant-numeric:tabular-nums;
}
.rec-card .foot i{font-size:12px;color:var(--primary);margin-right:4px}
.rec-card.span-2{grid-column:span 2;flex-direction:row}
.rec-card.span-2 .thumb{aspect-ratio:auto;width:50%;min-height:230px;flex-shrink:0}
.rec-card.span-2 .content{padding:24px;justify-content:center}
.rec-card.span-2 .content h3{font-size:20px;-webkit-line-clamp:2}
.rec-card.span-2 .content p{-webkit-line-clamp:3}
.rec-card.span-2 .rec-badge{background:var(--primary);color:#fff}

/* ===== List panel rows ===== */
.list-panel{
  background:var(--card-bg);border-radius:12px;padding:8px 24px;
  box-shadow:var(--shadow-sm);
}
.list-card{
  display:flex;align-items:center;gap:18px;
  padding:18px 0;border-bottom:1px solid var(--line);
  transition:all .2s ease;
}
.list-card:last-child{border-bottom:0}
.list-card .pic{
  flex:0 0 180px;aspect-ratio:16/10;border-radius:8px;overflow:hidden;
  background:#dce6ee;
}
.list-card .pic img{width:100%;height:100%;object-fit:cover;transition:transform .25s ease}
.list-card:hover .pic img{transform:scale(1.04)}
.list-card .info{flex:1;min-width:0}
.list-card .info h4{
  margin:0 0 6px;font-size:16px;font-weight:600;color:var(--text-1);
  white-space:nowrap;overflow:hidden;text-overflow:ellipsis;transition:color .2s;
}
.list-card:hover .info h4{color:var(--primary)}
.list-card .info p{
  margin:0 0 8px;font-size:14px;color:var(--text-2);
  white-space:nowrap;overflow:hidden;text-overflow:ellipsis;
}
.list-card .meta{display:flex;align-items:center;gap:16px;font-size:13px;color:var(--text-3);font-variant-numeric:tabular-nums}
.list-card .meta i{font-size:12px;color:var(--primary);margin-right:4px}
.badge-soft{
  display:inline-flex;align-items:center;font-size:12px;font-weight:600;
  color:var(--primary);background:var(--primary-soft);border-radius:99px;
  padding:4px 12px;line-height:1.4;
}

/* ===== Topic cards ===== */
.topic-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.topic-card{
  position:relative;display:block;background:var(--card-bg);border-radius:12px;
  padding:26px;box-shadow:var(--shadow-sm);transition:all .25s ease;overflow:hidden;
}
.topic-card::before{
  content:"";position:absolute;left:0;top:0;bottom:0;width:4px;
  background:var(--primary);opacity:0;transition:opacity .25s ease;
}
.topic-card:hover{box-shadow:var(--shadow-lg);transform:translateY(-2px)}
.topic-card:hover::before{opacity:1}
.topic-top{display:flex;align-items:center;justify-content:space-between;margin-bottom:18px}
.topic-num{font-size:34px;font-weight:700;color:var(--primary);opacity:.32;line-height:1;font-variant-numeric:tabular-nums}
.topic-card h3{margin:0 0 10px;font-size:17px;font-weight:700;color:var(--text-1);line-height:1.5}
.topic-card:hover h3{color:var(--primary)}
.topic-card p{margin:0 0 20px;font-size:14px;color:var(--text-2);line-height:1.7}
.topic-link{font-size:14px;font-weight:600;color:var(--primary);display:inline-flex;align-items:center;gap:6px}
.topic-link i{font-size:12px;transition:transform .2s ease}
.topic-card:hover .topic-link i{transform:translateX(4px)}

/* ===== Guide mixed ===== */
.guide-grid{display:grid;grid-template-columns:1fr 1fr;gap:40px;align-items:stretch}
.guide-list{display:flex;flex-direction:column;gap:14px}
.guide-item{
  display:flex;gap:18px;align-items:flex-start;
  background:var(--card-bg);border-radius:12px;padding:22px 24px;
  box-shadow:var(--shadow-sm);transition:box-shadow .25s ease;
}
.guide-item:hover{box-shadow:var(--shadow-md)}
.guide-step{
  flex:0 0 40px;height:40px;border-radius:10px;background:var(--primary-soft);
  color:var(--primary);font-size:15px;font-weight:700;
  display:flex;align-items:center;justify-content:center;font-variant-numeric:tabular-nums;
}
.guide-item:nth-child(2) .guide-step{background:rgba(255,122,47,.12);color:var(--accent)}
.guide-item h4{margin:0 0 4px;font-size:16px;font-weight:600;color:var(--text-1)}
.guide-item p{margin:0;font-size:14px;color:var(--text-2);line-height:1.6}
.guide-visual{
  position:relative;border-radius:12px;overflow:hidden;min-height:260px;
  background:var(--primary-deep) url('/assets/images/backpic/back-2.webp') center/cover no-repeat;
  display:flex;align-items:flex-end;
}
.guide-visual::before{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(31,45,61,.06) 0%,rgba(19,33,48,.82) 100%)}
.guide-visual .inner{position:relative;z-index:2;padding:32px;color:#fff}
.guide-visual .inner h3{margin:0 0 6px;font-size:22px;font-weight:700}
.guide-visual .inner p{margin:0 0 18px;font-size:14px;color:rgba(255,255,255,.82)}

/* ===== News panel ===== */
.news-panel{background:var(--card-bg);border-radius:12px;box-shadow:var(--shadow-sm);padding:8px 24px}
.news-row{
  display:flex;align-items:center;gap:16px;
  padding:16px 0;border-bottom:1px solid var(--line);transition:background .2s ease;
}
.news-row:last-child{border-bottom:0}
.news-row:hover .news-title{color:var(--primary)}
.news-cat{
  flex:0 0 76px;text-align:center;font-size:12px;font-weight:600;
  color:var(--primary);background:var(--primary-soft);border-radius:99px;padding:5px 8px;
  white-space:nowrap;overflow:hidden;text-overflow:ellipsis;
}
.news-main{flex:1;min-width:0;display:block}
.news-title{
  display:block;font-size:15px;font-weight:600;color:var(--text-1);
  white-space:nowrap;overflow:hidden;text-overflow:ellipsis;transition:color .2s ease;
}
.news-summary{
  display:block;margin-top:2px;font-size:13px;color:var(--text-2);
  white-space:nowrap;overflow:hidden;text-overflow:ellipsis;
}
.news-date{flex:0 0 90px;text-align:right;font-size:13px;color:var(--text-3);font-variant-numeric:tabular-nums}
.empty-state{
  display:flex;flex-direction:column;align-items:center;justify-content:center;
  gap:12px;padding:56px 0;color:var(--text-3);text-align:center;
}
.empty-state i{font-size:38px;opacity:.55}
.empty-state p{margin:0;font-size:14px}

/* ===== Pagination ===== */
.pagination{display:flex;gap:8px;justify-content:center;margin-top:24px;flex-wrap:wrap}
.page-link-custom{
  width:36px;height:36px;border-radius:8px;display:flex;align-items:center;justify-content:center;
  background:transparent;color:var(--text-2);font-size:14px;font-weight:500;
  border:1px solid transparent;transition:all .2s ease;
}
.page-link-custom:hover{background:var(--primary-soft);color:var(--primary)}
.page-link-custom.active{background:#fff;border-color:var(--primary);color:var(--primary);font-weight:600;box-shadow:var(--shadow-sm)}

/* ===== CTA ===== */
.cta-banner{
  position:relative;background:var(--primary-deep);border-radius:12px;
  padding:64px 48px;text-align:center;color:#fff;overflow:hidden;
}
.cta-banner::before{
  content:"";position:absolute;width:280px;height:280px;border-radius:50%;
  background:rgba(255,255,255,.08);top:-110px;right:-60px;
}
.cta-banner::after{
  content:"";position:absolute;width:170px;height:170px;border-radius:50%;
  background:rgba(255,255,255,.05);bottom:-70px;left:-40px;
}
.cta-banner h2{position:relative;z-index:2;margin:0 0 14px;font-size:28px;font-weight:700;line-height:1.4}
.cta-banner p{position:relative;z-index:2;margin:0 auto 30px;max-width:560px;font-size:16px;color:rgba(255,255,255,.8);line-height:1.75}
.cta-banner .btn{position:relative;z-index:2}

/* ===== FAQ ===== */
.faq-wrap{display:grid;grid-template-columns:320px 1fr;gap:48px;align-items:start}
.faq-intro h2{margin:0 0 12px;font-size:26px;font-weight:700;color:var(--text-1)}
.faq-intro p{margin:0;font-size:14px;color:var(--text-2);line-height:1.75}
.faq-accordion{
  --bs-accordion-border-width:0;
  --bs-accordion-btn-focus-box-shadow:none;
  --bs-accordion-active-bg:transparent;
  --bs-accordion-active-color:var(--text-1);
  --bs-accordion-bg:transparent;
}
.faq-accordion .accordion-item{border-bottom:1px solid var(--line)!important;border-radius:0!important;background:transparent!important}
.faq-accordion .accordion-button{
  background:transparent;box-shadow:none;border:0;border-radius:0;
  padding:20px 8px 20px 0;font-size:15px;font-weight:600;color:var(--text-1);
  display:flex;align-items:center;gap:12px;text-align:left;
}
.faq-accordion .accordion-button::after{display:none}
.faq-accordion .accordion-button::before{
  content:"";width:4px;height:16px;border-radius:99px;background:var(--primary);flex-shrink:0;
}
.faq-accordion .accordion-button:not(.collapsed){background:transparent;color:var(--text-1);box-shadow:none}
.faq-accordion .accordion-button:focus{box-shadow:none}
.faq-icon{
  margin-left:auto;width:26px;height:26px;border-radius:50%;flex-shrink:0;
  background:var(--primary-soft);color:var(--primary);font-size:12px;
  display:flex;align-items:center;justify-content:center;transition:transform .25s ease;
}
.faq-accordion .accordion-button:not(.collapsed) .faq-icon{transform:rotate(45deg)}
.faq-accordion .accordion-body{padding:0 8px 22px 16px;font-size:14px;color:var(--text-2);line-height:1.75}
.faq-accordion .accordion-body p{margin:0}

/* ===== Footer ===== */
.site-footer{background:#1F2E3D;color:#94A3B8;margin-top:0}
.footer-top{
  display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:32px;
  padding:52px 0 44px;
}
.footer-brand .brand{
  display:inline-flex;align-items:center;gap:10px;
}
.footer-brand .brand-icon{background:var(--primary);color:#fff}
.footer-brand .brand-text{color:#fff;font-size:20px;font-weight:700}
.footer-desc{margin:16px 0 0;font-size:14px;line-height:1.8;color:#94A3B8;max-width:280px}
.footer-title{font-size:14px;font-weight:600;color:#fff;margin:0 0 18px}
.footer-links{display:flex;flex-direction:column;gap:10px}
.footer-links a{font-size:13px;color:#94A3B8;transition:color .2s ease;display:inline-flex;align-items:center;gap:6px}
.footer-links a:hover{color:#fff}
.footer-links a i{font-size:11px;color:var(--primary)}
.footer-contact {  display:flex;flex-direction:column;gap:10px;font-size:13px;color:#94A3B8;}
.footer-contact span{display:flex;align-items:center;gap:8px}
.footer-contact i{width:16px;color:var(--primary);font-size:13px}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.08);
  padding:18px 0;display:flex;align-items:center;justify-content:space-between;gap:12px;
  font-size:12px;color:#6B7F95;flex-wrap:wrap;
}

/* ===== Responsive ===== */
@media (max-width:1199.98px){
  .card-grid{grid-template-columns:repeat(3,1fr)}
  .hero h1{font-size:36px}
  .slider-card{flex-basis:220px}
  .footer-top{grid-template-columns:1.4fr 1fr 1fr 1fr}
}
@media (max-width:991.98px){
  .site-header{height:60px}
  .header-inner{height:60px;gap:16px}
  .brand-text{font-size:18px}
  .search-box{display:none}
  .hamburger{display:inline-flex}
  .main-nav{
    position:absolute;top:100%;left:0;right:0;z-index:999;
    flex-direction:column;align-items:stretch;gap:4px;
    background:#fff;border-bottom:1px solid var(--border);
    box-shadow:var(--shadow-md);padding:10px 20px 16px;
    display:none;
  }
  .main-nav.open{display:flex}
  .nav-link{height:44px;justify-content:flex-start;padding:0 14px;border-radius:8px}
  .nav-link.active::after{display:none}
  .nav-link.active{background:var(--primary-soft);color:var(--primary)}
  .nav-link:hover{background:var(--primary-soft);color:var(--primary)}
  .hero{min-height:470px}
  .hero h1{font-size:34px}
  .hero-stats{gap:20px;padding:12px 24px;flex-wrap:wrap}
  .topic-grid{grid-template-columns:repeat(2,1fr)}
  .faq-wrap{grid-template-columns:1fr;gap:28px}
  .guide-grid{grid-template-columns:1fr;gap:28px}
  .footer-top{grid-template-columns:1fr 1fr;row-gap:36px}
}
@media (max-width:767.98px){
  .section{padding:48px 0}
  .hero{min-height:400px}
  .hero-content{padding:56px 0}
  .hero h1{font-size:28px}
  .hero-sub{font-size:15px}
  .hero-cta .btn{height:42px;padding:0 22px}
  .hero-stats{margin-top:36px;width:100%;border-radius:16px}
  .card-grid{grid-template-columns:repeat(2,1fr);gap:16px}
  .rec-card.span-2{grid-column:span 2}
  .section-title{font-size:21px}
  .list-card .pic{flex-basis:130px}
  .list-card .info p{display:none}
  .news-date{display:none}
  .news-main{display:block}
  .cta-banner{padding:44px 24px}
  .cta-banner h2{font-size:23px}
  .slider-card{flex-basis:180px}
  .slider-arrow{display:none}
  .topic-card{padding:22px}
}
@media (max-width:575.98px){
  .container{padding-left:16px;padding-right:16px}
  .brand-text{font-size:16px;letter-spacing:0}
  .brand-icon{width:30px;height:30px;font-size:13px}
  .btn-login{height:34px;padding:0 14px;font-size:13px}
  .card-grid{grid-template-columns:1fr}
  .rec-card.span-2{grid-column:span 1;flex-direction:column}
  .rec-card.span-2 .thumb{width:100%;aspect-ratio:16/9;min-height:0}
  .rec-card.span-2 .content{padding:18px}
  .rec-card.span-2 .content h3{font-size:18px}
  .topic-grid{grid-template-columns:1fr}
  .list-card{gap:12px}
  .list-card .pic{flex-basis:104px;aspect-ratio:16/11}
  .list-card .info h4{font-size:14px}
  .news-panel{padding:4px 16px;border-radius:10px}
  .news-cat{flex-basis:60px;font-size:11px}
  .guide-item{padding:16px 18px;flex-direction:column;gap:12px}
  .guide-step{flex-basis:auto;width:36px;height:36px;font-size:14px}
  .footer-top{grid-template-columns:1fr;gap:28px;padding:40px 0 32px}
  .hero h1{letter-spacing:.2px}
  .hero-stats .stat b{font-size:16px}

/* roulang page: article */
:root {
  --primary: #3A7CA5;
  --primary-deep: #2B5E80;
  --primary-soft: #E8F1F8;
  --accent: #FF7A2F;
  --accent-hover: #EA6210;
  --bg: #F6F9FC;
  --card-bg: #FFFFFF;
  --text-1: #1F2D3D;
  --text-2: #4E6072;
  --text-3: #8A9BAE;
  --border: #E3EAF0;
  --shadow-sm: 0 2px 8px rgba(31,45,61,.05);
  --shadow-md: 0 4px 16px rgba(31,45,61,.08);
  --shadow-lg: 0 12px 32px rgba(31,45,61,.12);
  --radius-sm: 8px;
  --radius-md: 10px;
  --radius-lg: 12px;
  --radius-full: 999px;
  --transition: .25s ease;
  --font-family: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", system-ui, -apple-system, sans-serif;
}

*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-family);
  background: var(--bg);
  color: var(--text-1);
  font-size: 15px;
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

img {
  max-width: 100%;
  display: block;
}

a {
  color: var(--primary);
  text-decoration: none;
  transition: color .2s ease;
}

a:hover {
  color: var(--primary-deep);
}

ul, ol {
  list-style: none;
}

input, button, textarea {
  font: inherit;
  outline: none;
  border: none;
  background: none;
}

button {
  cursor: pointer;
}

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding-left: 24px;
  padding-right: 24px;
}

.container-narrow {
  max-width: 760px;
  margin: 0 auto;
  padding-left: 24px;
  padding-right: 24px;
}

/* ===== Header ===== */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: #FFFFFF;
  border-bottom: 1px solid var(--border);
  box-shadow: 0 1px 4px rgba(31, 45, 61, .04);
}

.header-inner {
  display: flex;
  align-items: center;
  height: 64px;
  gap: 28px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-shrink: 0;
}

.brand:hover .brand-text {
  color: var(--primary);
}

.brand-icon {
  width: 32px;
  height: 32px;
  background: var(--primary);
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-size: 16px;
  flex-shrink: 0;
  transition: background .25s ease;
}

.brand-text {
  font-size: 20px;
  font-weight: 700;
  color: var(--text-1);
  white-space: nowrap;
  letter-spacing: .5px;
  transition: color .2s ease;
}

.main-nav {
  display: flex;
  align-items: center;
  gap: 4px;
  margin-left: 8px;
}

.nav-link {
  position: relative;
  display: flex;
  align-items: center;
  height: 64px;
  padding: 0 14px;
  font-size: 15px;
  font-weight: 500;
  color: var(--text-2);
  transition: color .2s ease;
}

.nav-link:hover {
  color: var(--primary);
}

.nav-link.active {
  color: var(--primary);
  font-weight: 600;
}

.nav-link.active::after {
  content: '';
  position: absolute;
  left: 50%;
  bottom: 0;
  transform: translateX(-50%);
  width: 24px;
  height: 3px;
  background: var(--primary);
  border-radius: 3px 3px 0 0;
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-left: auto;
  flex-shrink: 0;
}

.search-box {
  position: relative;
  width: 180px;
}

.search-box i {
  position: absolute;
  left: 13px;
  top: 50%;
  transform: translateY(-50%);
  font-size: 13px;
  color: var(--text-3);
  pointer-events: none;
}

.search-box input {
  width: 100%;
  height: 36px;
  background: #F1F5F9;
  border-radius: var(--radius-full);
  padding: 0 14px 0 34px;
  font-size: 13px;
  color: var(--text-1);
  border: 2px solid transparent;
  transition: all .2s ease;
}

.search-box input::placeholder {
  color: var(--text-3);
}

.search-box input:focus {
  background: #fff;
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(58, 124, 165, .12);
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  height: 38px;
  padding: 0 24px;
  border-radius: var(--radius-sm);
  font-size: 14px;
  font-weight: 600;
  line-height: 1;
  white-space: nowrap;
  transition: all .2s ease;
  border: 1px solid transparent;
}

.btn-accent {
  background: var(--accent);
  color: #fff;
  border-color: var(--accent);
}

.btn-accent:hover {
  background: var(--accent-hover);
  border-color: var(--accent-hover);
  color: #fff;
  transform: translateY(-1px);
  box-shadow: var(--shadow-md);
}

.btn-outline {
  background: transparent;
  color: var(--primary);
  border: 1px solid var(--primary);
}

.btn-outline:hover {
  background: var(--primary-soft);
  color: var(--primary-deep);
  border-color: var(--primary);
  transform: none;
}

.btn:focus-visible,
.nav-toggle:focus-visible,
.nav-link:focus-visible,
.search-box input:focus-visible {
  outline: 2px solid var(--primary);
  outline-offset: 2px;
}

.nav-toggle {
  display: none;
  width: 40px;
  height: 40px;
  border-radius: 8px;
  align-items: center;
  justify-content: center;
  color: var(--text-1);
  font-size: 17px;
  transition: background .2s ease;
}

.nav-toggle:hover {
  background: #F1F5F9;
}

.nav-toggle:focus-visible {
  outline: 2px solid var(--primary);
  outline-offset: 2px;
}

/* ===== Breadcrumb ===== */
.breadcrumb-nav {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 8px;
  padding: 24px 0 12px;
  font-size: 13px;
  color: var(--text-3);
}

.breadcrumb-nav a {
  color: var(--text-3);
  transition: color .2s ease;
}

.breadcrumb-nav a:hover {
  color: var(--primary);
}

.breadcrumb-sep {
  color: #C0CDD9;
}

.breadcrumb-cat {
  color: var(--text-3);
}

.breadcrumb-current {
  color: var(--text-2);
  max-width: 420px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

/* ===== Article Main ===== */
.article-main {
  padding-bottom: 56px;
}

.article-card {
  background: var(--card-bg);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
  padding: 40px 48px;
  margin-top: 12px;
}

.article-header h1 {
  font-size: 30px;
  font-weight: 700;
  line-height: 1.45;
  color: var(--text-1);
  margin-bottom: 18px;
  letter-spacing: .3px;
}

.article-meta {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 16px;
  font-size: 14px;
  color: var(--text-3);
  padding-bottom: 20px;
  border-bottom: 1px solid var(--border);
}

.article-meta i {
  margin-right: 6px;
  font-size: 13px;
}

.article-meta .meta-badge {
  display: inline-flex;
  align-items: center;
  background: var(--primary-soft);
  color: var(--primary-deep);
  font-size: 12px;
  font-weight: 600;
  padding: 3px 12px;
  border-radius: var(--radius-full);
}

.article-meta .meta-date,
.article-meta .meta-views {
  display: inline-flex;
  align-items: center;
  font-variant-numeric: tabular-nums;
}

.article-summary {
  background: #F1F5F9;
  border-radius: var(--radius-sm);
  padding: 16px 20px;
  font-size: 14px;
  color: var(--text-2);
  line-height: 1.75;
  margin: 24px 0 28px;
}

/* ===== Article Content ===== */
.article-content {
  font-size: 16px;
  line-height: 1.85;
  color: #2D3A4A;
  word-break: break-word;
}

.article-content p {
  margin-bottom: 20px;
}

.article-content h2 {
  font-size: 22px;
  font-weight: 700;
  color: var(--text-1);
  margin: 36px 0 14px;
  padding-bottom: 10px;
  border-bottom: 1px solid var(--border);
  line-height: 1.5;
}

.article-content h3 {
  font-size: 18px;
  font-weight: 600;
  color: var(--text-1);
  margin: 26px 0 12px;
  line-height: 1.5;
}

.article-content h4 {
  font-size: 16px;
  font-weight: 600;
  color: var(--text-1);
  margin: 22px 0 10px;
}

.article-content img {
  width: 100%;
  height: auto;
  border-radius: var(--radius-sm);
  margin: 24px 0;
}

.article-content figure {
  margin: 24px 0;
}

.article-content figure img {
  margin: 0;
}

.article-content figcaption {
  font-size: 12px;
  color: var(--text-3);
  text-align: center;
  margin-top: 8px;
  line-height: 1.6;
}

.article-content blockquote {
  border-left: 4px solid var(--primary);
  background: #EFF6FA;
  padding: 18px 22px;
  font-size: 15px;
  font-style: italic;
  color: var(--text-2);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  margin: 28px 0;
}

.article-content blockquote p {
  margin-bottom: 0;
}

.article-content a {
  color: var(--primary);
  text-decoration: underline;
  text-underline-offset: 3px;
  text-decoration-color: rgba(58, 124, 165, .35);
  transition: color .2s ease;
}

.article-content a:hover {
  color: var(--primary-deep);
  text-decoration-color: var(--primary-deep);
}

.article-content ul,
.article-content ol {
  padding-left: 22px;
  margin-bottom: 20px;
  margin-top: 4px;
}

.article-content ul {
  list-style: disc;
}

.article-content ol {
  list-style: decimal;
}

.article-content li {
  margin-bottom: 6px;
}

.article-content li::marker {
  color: var(--primary);
}

.article-content table {
  width: 100%;
  border-collapse: collapse;
  margin: 24px 0;
  font-size: 14px;
}

.article-content th,
.article-content td {
  border: 1px solid var(--border);
  padding: 10px 14px;
  text-align: left;
}

.article-content th {
  background: var(--primary-soft);
  font-weight: 600;
  color: var(--text-1);
}

.article-content hr {
  border: none;
  border-top: 1px solid var(--border);
  margin: 28px 0;
}

.article-content strong {
  font-weight: 700;
  color: var(--text-1);
}

.article-content iframe {
  max-width: 100%;
  border-radius: var(--radius-sm);
  margin: 24px 0;
}

/* ===== Article Empty ===== */
.article-empty {
  text-align: center;
  padding: 60px 20px 50px;
}

.article-empty i {
  font-size: 46px;
  color: var(--text-3);
  margin-bottom: 16px;
  opacity: .6;
}

.article-empty p {
  font-size: 18px;
  font-weight: 600;
  color: var(--text-2);
  margin-bottom: 24px;
}

.article-empty .btn {
  min-width: 140px;
}

/* ===== Article Tags ===== */
.article-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 36px;
  padding-top: 24px;
  border-top: 1px solid var(--border);
}

.article-tags a {
  display: inline-flex;
  align-items: center;
  font-size: 13px;
  color: var(--text-2);
  background: #F1F5F9;
  padding: 5px 14px;
  border-radius: var(--radius-full);
  transition: all .2s ease;
  font-weight: 500;
}

.article-tags a:hover {
  background: var(--primary-soft);
  color: var(--primary);
  transform: translateY(-1px);
}

.article-footer-actions {
  display: flex;
  justify-content: center;
  padding-top: 32px;
  margin-top: 8px;
}

.article-footer-actions .btn {
  min-width: 160px;
}

/* ===== Related Section ===== */
.related-section {
  padding: 8px 0 0;
}

.related-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 24px;
}

.related-header h2 {
  font-size: 22px;
  font-weight: 700;
  color: var(--text-1);
  position: relative;
  padding-left: 14px;
}

.related-header h2::before {
  content: '';
  position: absolute;
  left: 0;
  top: 50%;
  transform: translateY(-50%);
  width: 4px;
  height: 18px;
  background: var(--primary);
  border-radius: 2px;
}

.related-header .related-more {
  font-size: 14px;
  color: var(--primary);
  font-weight: 500;
  display: inline-flex;
  align-items: center;
  gap: 4px;
  transition: gap .2s ease;
}

.related-header .related-more:hover {
  gap: 8px;
  color: var(--primary-deep);
}

.related-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}

.related-card {
  background: var(--card-bg);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-sm);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  transition: box-shadow .25s ease, transform .25s ease;
}

.related-card:hover {
  box-shadow: var(--shadow-lg);
  transform: translateY(-3px);
}

.related-cover {
  aspect-ratio: 16 / 9;
  overflow: hidden;
  background: var(--primary-soft);
}

.related-cover img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform .25s ease;
}

.related-card:hover .related-cover img {
  transform: scale(1.04);
}

.related-body {
  padding: 16px;
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.related-body h3 {
  font-size: 15px;
  font-weight: 600;
  color: var(--text-1);
  line-height: 1.55;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  transition: color .2s ease;
}

.related-card:hover .related-body h3 {
  color: var(--primary);
}

.related-date {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 13px;
  color: var(--text-3);
  font-variant-numeric: tabular-nums;
}

/* ===== CTA Banner ===== */
.cta-banner {
  padding: 48px 0 0;
}

.cta-inner {
  position: relative;
  background: var(--primary-deep);
  border-radius: var(--radius-lg);
  padding: 48px 56px;
  text-align: center;
  overflow: hidden;
  box-shadow: var(--shadow-md);
}

.cta-inner::before {
  content: '';
  position: absolute;
  width: 220px;
  height: 220px;
  border-radius: 50%;
  background: rgba(255, 255, 255, .06);
  top: -70px;
  right: -50px;
}

.cta-inner::after {
  content: '';
  position: absolute;
  width: 140px;
  height: 140px;
  border-radius: 50%;
  background: rgba(255, 255, 255, .04);
  bottom: -50px;
  left: -30px;
}

.cta-inner h2 {
  font-size: 26px;
  font-weight: 700;
  color: #fff;
  margin-bottom: 12px;
  position: relative;
  z-index: 1;
  letter-spacing: .5px;
}

.cta-inner p {
  font-size: 15px;
  color: rgba(255, 255, 255, .82);
  margin-bottom: 24px;
  position: relative;
  z-index: 1;
  line-height: 1.7;
}

.cta-inner .btn {
  position: relative;
  z-index: 1;
  height: 44px;
  padding: 0 36px;
  font-size: 15px;
}

/* ===== Footer ===== */
.site-footer {
  background: #1F2E3D;
  color: #94A3B8;
  padding: 48px 0 0;
  margin-top: 64px;
}

.footer-top {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1.4fr;
  gap: 24px;
  padding-bottom: 36px;
}

.footer-brand {
  max-width: 300px;
}

.footer-logo {
  display: inline-flex;
  align-items: center;
  gap: 10px;
}

.footer-logo .brand-text {
  color: #fff;
}

.footer-logo .brand-icon {
  background: var(--primary);
}

.footer-desc {
  font-size: 14px;
  color: #94A3B8;
  line-height: 1.75;
  margin-top: 16px;
  max-width: 260px;
}

.footer-title {
  font-size: 14px;
  font-weight: 600;
  color: #fff;
  margin-bottom: 16px;
  letter-spacing: .5px;
}

.footer-links li {
  margin-bottom: 10px;
}

.footer-links a {
  font-size: 13px;
  color: #94A3B8;
  transition: color .2s ease, padding-left .2s ease;
}

.footer-links a:hover {
  color: #fff;
  padding-left: 4px;
}

.footer-contact {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.footer-contact span {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 13px;
  color: #94A3B8;
}

.footer-contact i {
  width: 16px;
  text-align: center;
  color: var(--primary);
  font-size: 14px;
}

.footer-bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 8px;
  padding: 20px 0;
  border-top: 1px solid rgba(255, 255, 255, .08);
  font-size: 12px;
  color: #6B7F95;
}

/* ===== Responsive ===== */
@media (max-width: 1199.98px) {
  .footer-top {
    grid-template-columns: 1.6fr 1fr 1fr 1.2fr;
  }
}

@media (max-width: 991.98px) {
  .search-box {
    display: none;
  }

  .nav-toggle {
    display: flex;
  }

  .main-nav {
    position: fixed;
    top: 64px;
    left: 0;
    right: 0;
    background: #fff;
    flex-direction: column;
    align-items: stretch;
    margin-left: 0;
    padding: 12px 16px;
    gap: 4px;
    box-shadow: 0 12px 28px rgba(31, 45, 61, .1);
    display: none;
    border-bottom: 1px solid var(--border);
    z-index: 99;
    max-height: calc(100vh - 64px);
    overflow-y: auto;
  }

  .main-nav.open {
    display: flex;
  }

  .nav-link {
    height: 44px;
    justify-content: flex-start;
    padding: 0 16px;
    border-radius: 8px;
    font-size: 15px;
  }

  .nav-link.active {
    background: var(--primary-soft);
    color: var(--primary);
  }

  .nav-link.active::after {
    display: none;
  }

  .footer-top {
    grid-template-columns: 1.4fr 1fr 1fr;
    gap: 32px 24px;
  }
}

@media (max-width: 767.98px) {
  .header-inner {
    height: 56px;
    gap: 16px;
  }

  .brand-text {
    font-size: 18px;
  }

  .brand-icon {
    width: 30px;
    height: 30px;
    font-size: 14px;
  }

  .main-nav {
    top: 56px;
  }

  .btn-login {
    padding: 0 14px;
    height: 36px;
    font-size: 13px;
  }

  .article-card {
    padding: 28px 24px;
  }

  .article-header h1 {
    font-size: 26px;
  }

  .article-summary {
    padding: 14px 16px;
  }

  .footer-top {
    grid-template-columns: 1fr 1fr;
    gap: 28px 20px;
  }

  .footer-brand {
    grid-column: 1 / -1;
    max-width: 100%;
  }
}

@media (max-width: 575.98px) {
  .container,
  .container-narrow {
    padding-left: 16px;
    padding-right: 16px;
  }

  .breadcrumb-nav {
    padding-top: 16px;
    font-size: 12px;
    gap: 6px;
  }

  .breadcrumb-current {
    max-width: 160px;
  }

  .article-card {
    padding: 22px 16px;
    border-radius: 10px;
  }

  .article-header h1 {
    font-size: 22px;
  }

  .article-meta {
    gap: 12px;
    font-size: 13px;
  }

  .article-content {
    font-size: 15px;
    line-height: 1.75;
  }

  .article-content h2 {
    font-size: 19px;
  }

  .article-content h3 {
    font-size: 17px;
  }

  .related-grid {
    grid-template-columns: 1fr;
    gap: 16px;
  }

  .related-body h3 {
    font-size: 15px;
  }

  .cta-inner {
    padding: 40px 24px;
    border-radius: 10px;
  }

  .cta-inner h2 {
    font-size: 22px;
  }

  .cta-inner p {
    font-size: 14px;
  }

  .cta-inner .btn {
    height: 42px;
    padding: 0 28px;
    font-size: 14px;
  }

  .article-footer-actions .btn {
    min-width: 130px;
  }

  .footer-top {
    grid-template-columns: 1fr;
    gap: 24px;
  }

  .footer-bottom {
    flex-direction: column;
    text-align: center;
    gap: 6px;
  }

  .site-footer {
    padding: 40px 0 0;
    margin-top: 48px;
  }

  .cta-banner {
    padding-top: 40px;
  }
}

@media (min-width: 992px) {
  .nav-toggle {
    display: none !important;
  }
}

/* roulang page: category1 */
:root {
  --primary: #3A7CA5;
  --primary-deep: #2B5E80;
  --primary-soft: #E8F1F8;
  --accent: #FF7A2F;
  --accent-hover: #EA6210;
  --bg: #F6F9FC;
  --card-bg: #FFFFFF;
  --text-1: #1F2D3D;
  --text-2: #4E6072;
  --text-3: #8A9BAE;
  --border: #E3EAF0;
  --shadow-sm: 0 2px 8px rgba(31,45,61,.05);
  --shadow-md: 0 4px 16px rgba(31,45,61,.08);
  --shadow-lg: 0 12px 32px rgba(31,45,61,.12);
  --radius-lg: 12px;
  --radius-md: 10px;
  --radius-sm: 8px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", system-ui, sans-serif;
  background: var(--bg);
  color: var(--text-1);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}
a { color: inherit; text-decoration: none; transition: color .2s ease; }
img { max-width: 100%; display: block; }
button, input { font-family: inherit; }

.container { max-width: 1200px; margin: 0 auto; padding-left: 24px; padding-right: 24px; }
.section { padding: 64px 0; }
.bg-white-section { background: #FFFFFF; }

/* ===== Header / Nav ===== */
.site-header {
  background: #FFFFFF;
  border-bottom: 1px solid var(--border);
  box-shadow: 0 1px 4px rgba(31,45,61,.04);
  position: sticky;
  top: 0;
  z-index: 1030;
  height: 68px;
}
.header-inner {
  display: flex;
  align-items: center;
  gap: 24px;
  height: 68px;
  position: relative;
}
.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 20px;
  font-weight: 700;
  color: var(--text-1);
  white-space: nowrap;
  flex-shrink: 0;
}
.brand-icon {
  width: 32px;
  height: 32px;
  background: var(--primary);
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-size: 16px;
}
.brand-text { line-height: 1.2; }
.main-nav {
  display: flex;
  align-items: center;
  gap: 6px;
  margin: 0 auto;
}
.nav-link {
  position: relative;
  display: inline-flex;
  align-items: center;
  padding: 24px 12px;
  font-weight: 600;
  font-size: 15px;
  color: var(--text-2);
  transition: color .2s ease;
}
.nav-link:hover { color: var(--primary); }
.nav-link.active { color: var(--primary); }
.nav-link.active::after {
  content: '';
  position: absolute;
  left: 50%;
  bottom: 0;
  transform: translateX(-50%);
  width: 24px;
  height: 3px;
  background: var(--primary);
  border-radius: 999px;
}
.header-actions {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-left: auto;
  flex-shrink: 0;
}
.search-box { position: relative; }
.search-box input {
  width: 180px;
  height: 36px;
  border-radius: 999px;
  background: var(--bg);
  border: 1px solid var(--border);
  padding: 0 38px 0 16px;
  font-size: 14px;
  color: var(--text-1);
  transition: border-color .2s, background .2s, box-shadow .2s;
}
.search-box input:focus {
  outline: none;
  background: #FFFFFF;
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(58,124,165,.15);
}
.search-box i {
  position: absolute;
  right: 14px;
  top: 50%;
  transform: translateY(-50%);
  color: var(--text-3);
  font-size: 13px;
  pointer-events: none;
}
.nav-toggle {
  display: none;
  background: transparent;
  border: 0;
  font-size: 20px;
  color: var(--text-1);
  cursor: pointer;
  width: 40px;
  height: 40px;
  align-items: center;
  justify-content: center;
  border-radius: 8px;
}
.nav-toggle:hover { background: var(--primary-soft); color: var(--primary); }

/* ===== Buttons ===== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-weight: 600;
  border-radius: var(--radius-sm);
  border: none;
  cursor: pointer;
  min-height: 40px;
  padding: 0 24px;
  font-size: 14px;
  text-align: center;
  text-decoration: none;
  transition: background .2s ease, box-shadow .2s ease, transform .2s ease;
  white-space: nowrap;
}
.btn:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}
.btn-primary {
  background: var(--accent);
  color: #FFFFFF;
}
.btn-primary:hover {
  background: var(--accent-hover);
  color: #FFFFFF;
  transform: translateY(-1px);
  box-shadow: var(--shadow-md);
}
.btn-outline-light {
  background: rgba(255,255,255,.1);
  color: #FFFFFF;
  border: 1px solid rgba(255,255,255,.8);
}
.btn-outline-light:hover {
  background: rgba(255,255,255,.2);
  color: #FFFFFF;
}
.btn-login {
  height: 40px;
  min-height: 40px;
  padding: 0 24px;
  background: var(--accent);
  color: #FFFFFF;
  font-size: 14px;
}
.btn-login:hover {
  background: var(--accent-hover);
  color: #FFFFFF;
}

/* ===== Category Hero ===== */
.cat-hero {
  background:
    linear-gradient(rgba(232,241,248,.92), rgba(232,241,248,.96)),
    url('/assets/images/backpic/back-1.webp') center / cover no-repeat;
  padding: 56px 0;
  border-bottom: 1px solid var(--border);
}
.cat-hero h1 {
  font-size: 32px;
  font-weight: 700;
  color: var(--text-1);
  margin: 0 0 12px;
  line-height: 1.4;
}
.cat-hero .lead {
  font-size: 16px;
  color: var(--text-2);
  max-width: 760px;
  margin: 0 0 24px;
}
.hero-stats {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
}
.hero-stat {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(255,255,255,.75);
  border: 1px solid rgba(255,255,255,.6);
  border-radius: 999px;
  padding: 8px 16px;
  font-size: 13px;
  color: var(--text-2);
  box-shadow: var(--shadow-sm);
}
.hero-stat strong {
  color: var(--primary);
  font-size: 16px;
  font-variant-numeric: tabular-nums;
}

/* ===== Section Head ===== */
.section-head {
  margin-bottom: 32px;
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
}
.section-head h2 {
  font-size: 24px;
  font-weight: 700;
  color: var(--text-1);
  margin: 0;
  line-height: 1.4;
}
.section-head p {
  margin: 6px 0 0;
  color: var(--text-3);
  font-size: 14px;
}
.section-link {
  color: var(--primary);
  font-weight: 600;
  font-size: 14px;
}
.section-link:hover { color: var(--primary-deep); }

/* ===== Feature Cards ===== */
.feature-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}
.feature-card {
  background: var(--card-bg);
  border-radius: var(--radius-md);
  padding: 24px;
  box-shadow: var(--shadow-sm);
  transition: box-shadow .25s ease, transform .25s ease;
}
.feature-card:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-2px);
}
.feature-icon {
  width: 48px;
  height: 48px;
  border-radius: 12px;
  background: var(--primary-soft);
  color: var(--primary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 20px;
  margin-bottom: 16px;
}
.feature-card h3 {
  font-size: 17px;
  font-weight: 700;
  margin: 0 0 8px;
  color: var(--text-1);
}
.feature-card p {
  font-size: 14px;
  color: var(--text-2);
  margin: 0;
  line-height: 1.7;
}

/* ===== Tip Bar ===== */
.cat-tip {
  background: #FFFFFF;
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-md);
  padding: 16px 20px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
  margin-bottom: 28px;
  border-left: 4px solid var(--accent);
}
.cat-tip .tip-text {
  font-size: 14px;
  color: var(--text-2);
  display: inline-flex;
  align-items: center;
  gap: 8px;
}
.cat-tip .tip-text i { color: var(--primary); }
.cat-tip .tip-link {
  color: var(--primary);
  font-weight: 600;
  font-size: 14px;
  white-space: nowrap;
}
.cat-tip .tip-link:hover { color: var(--primary-deep); }

/* ===== Content Cards ===== */
.card-item {
  background: var(--card-bg);
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  height: 100%;
  transition: box-shadow .25s ease;
  display: flex;
  flex-direction: column;
}
.card-item:hover { box-shadow: var(--shadow-lg); }
.card-cover {
  aspect-ratio: 16 / 9;
  overflow: hidden;
  background: #dbe5ee;
  position: relative;
}
.card-cover img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform .25s ease;
}
.card-item:hover .card-cover img { transform: scale(1.03); }
.card-body {
  padding: 16px;
  display: flex;
  flex-direction: column;
  flex: 1 1 auto;
}
.badge-soft {
  display: inline-block;
  padding: 4px 12px;
  background: var(--primary-soft);
  color: var(--primary);
  border-radius: 999px;
  font-size: 12px;
  font-weight: 600;
  margin-bottom: 10px;
  align-self: flex-start;
}
.card-title {
  font-size: 16px;
  font-weight: 700;
  line-height: 1.45;
  margin: 0 0 8px;
  color: var(--text-1);
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.card-title:hover { color: var(--primary); }
.card-excerpt {
  font-size: 14px;
  color: var(--text-2);
  line-height: 1.6;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  margin: 0 0 12px;
}
.card-meta {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 13px;
  color: var(--text-3);
  font-variant-numeric: tabular-nums;
  margin-top: auto;
}
.card-meta i { font-size: 12px; margin-right: 2px; }

/* ===== Pagination ===== */
.pagination-wrap {
  display: flex;
  justify-content: center;
  gap: 8px;
  margin-top: 40px;
  flex-wrap: wrap;
}
.page-link-custom {
  min-width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-sm);
  background: transparent;
  color: var(--text-2);
  font-size: 14px;
  font-weight: 600;
  border: 1px solid var(--border);
  transition: all .2s;
  padding: 0 10px;
}
.page-link-custom:hover {
  color: var(--primary);
  border-color: var(--primary);
  background: var(--primary-soft);
}
.page-link-custom.active {
  background: #FFFFFF;
  border-color: var(--primary);
  color: var(--primary);
}

/* ===== Stats Band ===== */
.stats-band {
  background: var(--primary-deep);
  color: #FFFFFF;
  padding: 44px 0;
}
.stats-band .section-head h2 { color: #FFFFFF; }
.stats-band .section-head p { color: rgba(255,255,255,.65); }
.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  text-align: center;
}
.stat-item .num {
  font-size: 36px;
  font-weight: 700;
  color: #FFFFFF;
  font-variant-numeric: tabular-nums;
  line-height: 1.2;
}
.stat-item .label {
  font-size: 14px;
  color: rgba(255,255,255,.75);
  margin-top: 4px;
}

/* ===== Scenario ===== */
.scenario-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
}
.scenario-card {
  display: flex;
  gap: 20px;
  background: #FFFFFF;
  border-radius: var(--radius-lg);
  padding: 24px;
  box-shadow: var(--shadow-sm);
  transition: box-shadow .25s ease;
}
.scenario-card:hover { box-shadow: var(--shadow-md); }
.scenario-no {
  font-size: 30px;
  font-weight: 700;
  color: var(--primary);
  line-height: 1;
  opacity: .35;
  font-variant-numeric: tabular-nums;
}
.scenario-card h3 {
  font-size: 16px;
  font-weight: 700;
  margin: 0 0 8px;
  color: var(--text-1);
}
.scenario-card p {
  font-size: 14px;
  color: var(--text-2);
  margin: 0;
  line-height: 1.7;
}
.scenario-icon {
  color: var(--primary);
  font-size: 22px;
  flex-shrink: 0;
}

/* ===== Process ===== */
.process {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}
.process-step {
  background: #FFFFFF;
  border-radius: var(--radius-lg);
  padding: 24px;
  box-shadow: var(--shadow-sm);
  position: relative;
  transition: box-shadow .25s ease, transform .25s ease;
}
.process-step:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-2px);
}
.step-num {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background: var(--accent);
  color: #FFFFFF;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 14px;
  margin-bottom: 14px;
}
.process-step h3 {
  font-size: 16px;
  font-weight: 700;
  margin: 0 0 8px;
  color: var(--text-1);
}
.process-step p {
  font-size: 14px;
  color: var(--text-2);
  margin: 0;
  line-height: 1.7;
}

/* ===== FAQ ===== */
.faq-wrap { max-width: 860px; margin: 0 auto; }
.accordion-item {
  background: transparent;
  border: 0;
  border-bottom: 1px solid var(--border);
}
.accordion-button {
  background: transparent !important;
  box-shadow: none !important;
  color: var(--text-1) !important;
  font-size: 15px;
  font-weight: 600;
  padding: 20px 0 20px 20px;
  position: relative;
  border: 0 !important;
  border-radius: 0 !important;
  text-align: left;
}
.accordion-button::before {
  content: '';
  position: absolute;
  left: 0;
  top: 50%;
  transform: translateY(-50%);
  width: 4px;
  height: 16px;
  border-radius: 999px;
  background: var(--primary);
}
.accordion-button:not(.collapsed) { color: var(--primary) !important; }
.accordion-button::after {
  font-family: 'Font Awesome 6 Free';
  font-weight: 900;
  content: '\2b';
  background-image: none !important;
  width: auto;
  height: auto;
  color: var(--primary);
  font-size: 14px;
  margin-left: auto;
  flex-shrink: 0;
}
.accordion-button:not(.collapsed)::after { content: '\f068'; }
.accordion-button:focus-visible {
  outline: 2px solid var(--primary);
  outline-offset: 2px;
  border-radius: 6px !important;
}
.accordion-body {
  padding: 0 0 20px 20px;
  color: var(--text-2);
  font-size: 14px;
  line-height: 1.8;
}

/* ===== CTA ===== */
.cta-band { padding: 56px 0; }
.cta-box {
  background:
    linear-gradient(rgba(43,94,128,.92), rgba(43,94,128,.96)),
    url('/assets/images/backpic/back-2.webp') center / cover no-repeat;
  border-radius: var(--radius-lg);
  color: #FFFFFF;
  text-align: center;
  padding: 56px 24px;
  position: relative;
  overflow: hidden;
}
.cta-box::before {
  content: '';
  position: absolute;
  width: 260px;
  height: 260px;
  border-radius: 50%;
  background: rgba(255,255,255,.08);
  top: -130px;
  right: -60px;
}
.cta-box h2 {
  font-size: 28px;
  font-weight: 700;
  margin: 0 0 12px;
  position: relative;
}
.cta-box p {
  font-size: 16px;
  color: rgba(255,255,255,.8);
  margin: 0 0 24px;
  position: relative;
}
.cta-box .btn { position: relative; }

/* ===== Footer ===== */
.site-footer {
  background: #1F2E3D;
  color: #94A3B8;
  margin-top: 0;
}
.footer-top {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1.4fr;
  gap: 24px;
  padding: 48px 0 32px;
}
.footer-brand .brand-text { color: #FFFFFF; }
.footer-brand .brand-icon { background: var(--primary); color: #fff; }
.footer-desc {
  font-size: 14px;
  color: #94A3B8;
  margin: 16px 0 0;
  max-width: 280px;
  line-height: 1.7;
}
.footer-title {
  font-size: 14px;
  font-weight: 600;
  color: #FFFFFF;
  margin: 0 0 18px;
}
.footer-links {
  list-style: none;
  margin: 0;
  padding: 0;
}
.footer-links li + li { margin-top: 10px; }
.footer-links a {
  color: #94A3B8;
  font-size: 13px;
}
.footer-links a:hover { color: #FFFFFF; }
.footer-contact {
  display: flex;
  flex-direction: column;
  gap: 12px;
  font-size: 13px;
  color: #94A3B8;
}
.footer-contact i {
  width: 18px;
  color: var(--primary);
  margin-right: 4px;
}
.footer-bottom {
  border-top: 1px solid rgba(255,255,255,.08);
  padding: 20px 0;
  display: flex;
  justify-content: space-between;
  gap: 12px;
  flex-wrap: wrap;
  font-size: 12px;
  color: #6B7F95;
}

/* ===== Focus visible ===== */
a:focus-visible, .nav-link:focus-visible, .brand:focus-visible {
  outline: 2px solid var(--primary);
  outline-offset: 2px;
  border-radius: 4px;
}
.page-link-custom:focus-visible {
  outline: 2px solid var(--primary);
  outline-offset: 2px;
}

/* ===== Responsive ===== */
@media (max-width: 1200px) {
  .feature-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 992px) {
  .nav-toggle { display: flex; }
  .main-nav {
    display: none;
    position: absolute;
    top: 68px;
    left: 0;
    right: 0;
    background: #FFFFFF;
    flex-direction: column;
    align-items: stretch;
    padding: 16px 24px 24px;
    border-bottom: 1px solid var(--border);
    box-shadow: var(--shadow-md);
    gap: 4px;
  }
  .site-header.nav-open .main-nav { display: flex; }
  .nav-link {
    padding: 14px 12px;
    border-radius: 8px;
    justify-content: flex-start;
  }
  .nav-link.active::after { display: none; }
  .nav-link.active {
    background: var(--primary-soft);
    color: var(--primary);
  }
  .header-inner { flex-wrap: wrap; }
  .header-actions { margin-left: auto; }
  .search-box { display: none; }
  .stats-grid, .process { grid-template-columns: repeat(2, 1fr); }
  .scenario-grid { grid-template-columns: 1fr; }
  .footer-top { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 768px) {
  .site-header { height: 60px; }
  .header-inner { height: 60px; }
  .main-nav { top: 60px; }
  .section { padding: 48px 0; }
  .cat-hero { padding: 40px 0; }
  .cat-hero h1 { font-size: 28px; }
  .process { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 576px) {
  .container { padding-left: 16px; padding-right: 16px; }
  .brand-text { font-size: 17px; }
  .brand-icon { width: 28px; height: 28px; font-size: 14px; }
  .btn-login { padding: 0 16px; height: 38px; min-height: 38px; font-size: 13px; }
  .feature-grid, .process { grid-template-columns: 1fr; }
  .stats-grid { grid-template-columns: 1fr 1fr; gap: 16px; }
  .stat-item .num { font-size: 28px; }
  .footer-top { grid-template-columns: 1fr; gap: 32px; padding: 40px 0 24px; }
  .scenario-card { flex-direction: column; gap: 12px; }
  .section-head h2 { font-size: 21px; }
  .cta-box { padding: 40px 20px; }
  .cta-box h2 { font-size: 24px; }
  .cta-box p { font-size: 15px; }
  .cat-tip { padding: 14px 16px; }
}

/* roulang page: category3 */
/* ===== CSS Variables ===== */
        :root {
            --primary: #3A7CA5;
            --primary-deep: #2B5E80;
            --primary-soft: #E8F1F8;
            --accent: #FF7A2F;
            --accent-hover: #EA6210;
            --bg: #F6F9FC;
            --card-bg: #FFFFFF;
            --text-1: #1F2D3D;
            --text-2: #4E6072;
            --text-3: #8A9BAE;
            --border: #E3EAF0;
            --line: #EDF2F7;
            --shadow-sm: 0 2px 8px rgba(31, 45, 61, .05);
            --shadow-md: 0 4px 16px rgba(31, 45, 61, .08);
            --shadow-lg: 0 12px 32px rgba(31, 45, 61, .12);
            --radius-lg: 12px;
            --radius: 10px;
            --radius-sm: 8px;
            --radius-full: 999px;
            --font-stack: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", system-ui, sans-serif;
        }

        /* ===== Reset & Base ===== */
        *,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: var(--font-stack);
            font-size: 15px;
            line-height: 1.7;
            color: var(--text-2);
            background: var(--bg);
            -webkit-font-smoothing: antialiased;
        }

        a {
            text-decoration: none;
            color: inherit;
            transition: color .2s ease;
        }

        img {
            max-width: 100%;
            display: block;
        }

        button,
        input {
            font-family: inherit;
            font-size: inherit;
            border: none;
            outline: none;
            background: none;
        }

        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding-left: 24px;
            padding-right: 24px;
        }

        /* ===== Header & Nav ===== */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 1000;
            width: 100%;
            height: 64px;
            background: #FFFFFF;
            border-bottom: 1px solid var(--border);
            box-shadow: 0 1px 4px rgba(31, 45, 61, .04);
            display: flex;
            align-items: center;
        }

        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 24px;
            width: 100%;
        }

        .brand {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-shrink: 0;
        }

        .brand-icon {
            width: 32px;
            height: 32px;
            background: var(--primary);
            border-radius: 8px;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-size: 15px;
            flex-shrink: 0;
        }

        .brand-text {
            font-size: 20px;
            font-weight: 700;
            color: var(--text-1);
            white-space: nowrap;
            letter-spacing: .5px;
        }

        .main-nav {
            display: flex;
            align-items: center;
            gap: 6px;
        }

        .nav-link {
            display: inline-block;
            padding: 8px 14px;
            font-size: 15px;
            font-weight: 500;
            color: var(--text-2);
            border-radius: 6px;
            position: relative;
            transition: color .2s ease, background .2s ease;
            line-height: 1.4;
            white-space: nowrap;
        }

        .nav-link:hover {
            color: var(--primary);
            background: var(--primary-soft);
        }

        .nav-link.active {
            color: var(--primary);
            font-weight: 600;
        }

        .nav-link.active::after {
            content: "";
            position: absolute;
            left: 50%;
            bottom: 0;
            transform: translateX(-50%);
            width: 24px;
            height: 3px;
            background: var(--primary);
            border-radius: 3px;
        }

        .header-actions {
            display: flex;
            align-items: center;
            gap: 12px;
            flex-shrink: 0;
        }

        .search-box {
            display: flex;
            align-items: center;
            width: 180px;
            height: 36px;
            background: #F1F5F9;
            border-radius: var(--radius-full);
            padding: 0 14px;
            gap: 8px;
            transition: background .2s ease, box-shadow .2s ease;
        }

        .search-box i {
            color: var(--text-3);
            font-size: 13px;
        }

        .search-box input {
            width: 100%;
            background: transparent;
            border: none;
            font-size: 14px;
            color: var(--text-1);
        }

        .search-box input::placeholder {
            color: var(--text-3);
        }

        .search-box:focus-within {
            background: #fff;
            box-shadow: 0 0 0 2px var(--primary);
        }

        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            height: 38px;
            padding: 0 24px;
            font-size: 15px;
            font-weight: 600;
            border-radius: var(--radius-sm);
            border: none;
            cursor: pointer;
            transition: background .2s ease, box-shadow .2s ease, transform .2s ease, color .2s ease;
            line-height: 1;
            white-space: nowrap;
        }

        .btn-accent {
            background: var(--accent);
            color: #fff;
        }

        .btn-accent:hover {
            background: var(--accent-hover);
            box-shadow: var(--shadow-md);
            transform: translateY(-1px);
            color: #fff;
        }

        .btn-accent:focus-visible {
            outline: 2px solid var(--accent);
            outline-offset: 2px;
            box-shadow: 0 0 0 4px rgba(255, 122, 47, .25);
        }

        .btn-outline-light {
            background: rgba(255, 255, 255, .1);
            color: #fff;
            border: 1px solid #fff;
        }

        .btn-outline-light:hover {
            background: var(--primary-soft);
            color: var(--primary);
            border-color: transparent;
        }

        .btn-lg {
            height: 44px;
            padding: 0 32px;
            font-size: 16px;
        }

        .nav-toggle {
            display: none;
            width: 40px;
            height: 40px;
            align-items: center;
            justify-content: center;
            background: #F1F5F9;
            border-radius: 8px;
            color: var(--text-1);
            font-size: 18px;
            cursor: pointer;
            transition: background .2s ease;
        }

        .nav-toggle:hover {
            background: var(--primary-soft);
            color: var(--primary);
        }

        /* ===== Category Hero ===== */
        .category-hero {
            background: linear-gradient(135deg, var(--primary-soft) 0%, #F6F9FC 100%);
            padding: 56px 0;
            text-align: center;
            border-bottom: 1px solid var(--border);
        }

        .category-hero .hero-tag {
            display: inline-block;
            background: #fff;
            color: var(--primary);
            font-size: 13px;
            font-weight: 600;
            padding: 5px 16px;
            border-radius: var(--radius-full);
            box-shadow: var(--shadow-sm);
            margin-bottom: 16px;
            letter-spacing: 1px;
        }

        .category-hero h1 {
            font-size: 32px;
            font-weight: 700;
            color: var(--text-1);
            line-height: 1.4;
            margin-bottom: 10px;
        }

        .category-hero p {
            font-size: 16px;
            color: var(--text-2);
            max-width: 640px;
            margin: 0 auto;
            line-height: 1.7;
        }

        /* ===== Tip Bar ===== */
        .tip-bar {
            display: flex;
            align-items: center;
            justify-content: center;
            flex-wrap: wrap;
            gap: 12px;
            background: #fff;
            border: 1px solid var(--border);
            border-radius: var(--radius);
            padding: 16px 24px;
            box-shadow: var(--shadow-sm);
            margin: -28px auto 0;
            position: relative;
            z-index: 5;
            max-width: 960px;
        }

        .tip-bar i {
            color: var(--primary);
            font-size: 16px;
        }

        .tip-bar span {
            font-size: 15px;
            color: var(--text-2);
        }

        .tip-bar a {
            font-size: 15px;
            font-weight: 600;
            color: var(--primary);
            border-bottom: 1px solid rgba(58, 124, 165, .3);
            transition: color .2s ease, border-color .2s ease;
        }

        .tip-bar a:hover {
            color: var(--accent);
            border-color: var(--accent);
        }

        /* ===== Section ===== */
        .section {
            padding: 64px 0;
        }

        .section-header {
            display: flex;
            align-items: flex-end;
            justify-content: space-between;
            margin-bottom: 32px;
            flex-wrap: wrap;
            gap: 12px;
        }

        .section-title {
            font-size: 24px;
            font-weight: 700;
            color: var(--text-1);
            line-height: 1.4;
            margin: 0;
            position: relative;
        }

        .section-title::before {
            content: "";
            display: inline-block;
            width: 4px;
            height: 20px;
            background: var(--accent);
            border-radius: 4px;
            margin-right: 12px;
            vertical-align: -2px;
        }

        .section-sub {
            font-size: 14px;
            color: var(--text-3);
            display: block;
            margin-top: 4px;
            margin-left: 16px;
        }

        .section-link {
            font-size: 14px;
            font-weight: 600;
            color: var(--primary);
            transition: color .2s ease, transform .2s ease;
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }

        .section-link:hover {
            color: var(--accent);
            transform: translateX(2px);
        }

        /* ===== Topic Card ===== */
        .topic-card {
            background: var(--card-bg);
            border-radius: var(--radius);
            box-shadow: var(--shadow-sm);
            overflow: hidden;
            height: 100%;
            transition: box-shadow .25s ease, transform .25s ease;
            display: flex;
            flex-direction: column;
        }

        .topic-card:hover {
            box-shadow: var(--shadow-md);
        }

        .topic-card .card-cover {
            position: relative;
            overflow: hidden;
            aspect-ratio: 16 / 10;
            background: var(--primary-soft);
        }

        .topic-card .card-cover img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform .25s ease;
        }

        .topic-card:hover .card-cover img {
            transform: scale(1.03);
        }

        .card-body-custom {
            padding: 16px;
            display: flex;
            flex-direction: column;
            gap: 8px;
            flex: 1;
        }

        .card-badge {
            display: inline-block;
            align-self: flex-start;
            background: var(--primary-soft);
            color: var(--primary);
            font-size: 12px;
            font-weight: 600;
            padding: 3px 12px;
            border-radius: var(--radius-full);
            line-height: 1.5;
        }

        .card-title {
            font-size: 16px;
            font-weight: 700;
            color: var(--text-1);
            line-height: 1.5;
            margin: 0;
            overflow: hidden;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            min-height: 48px;
        }

        .card-summary {
            font-size: 14px;
            color: var(--text-2);
            line-height: 1.6;
            margin: 0;
            overflow: hidden;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            flex: 1;
        }

        .card-meta {
            display: flex;
            align-items: center;
            justify-content: space-between;
            font-size: 13px;
            color: var(--text-3);
            margin-top: auto;
            font-variant-numeric: tabular-nums;
        }

        /* ===== Pagination ===== */
        .pagination-wrap {
            display: flex;
            justify-content: center;
            margin-top: 40px;
        }

        .pagination {
            display: flex;
            align-items: center;
            gap: 8px;
            list-style: none;
            margin: 0;
            padding: 0;
        }

        .page-item .page-link {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            min-width: 36px;
            height: 36px;
            padding: 0 12px;
            border: 1px solid transparent;
            border-radius: var(--radius-sm);
            background: transparent;
            color: var(--text-2);
            font-size: 14px;
            font-weight: 500;
            transition: background .2s ease, color .2s ease, border-color .2s ease;
            text-decoration: none;
        }

        .page-item .page-link:hover {
            background: var(--primary-soft);
            color: var(--primary);
        }

        .page-item.active .page-link {
            background: #fff;
            border-color: var(--primary);
            color: var(--primary);
            font-weight: 600;
            box-shadow: var(--shadow-sm);
        }

        .page-item.disabled .page-link {
            color: var(--text-3);
            pointer-events: none;
            opacity: .6;
        }

        /* ===== Type Section ===== */
        .type-section {
            background: #fff;
            border-top: 1px solid var(--line);
            border-bottom: 1px solid var(--line);
        }

        .type-card {
            background: var(--bg);
            border-radius: var(--radius-lg);
            padding: 32px 24px;
            height: 100%;
            transition: box-shadow .25s ease, transform .25s ease;
            border: 1px solid transparent;
        }

        .type-card:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-2px);
            border-color: var(--border);
            background: #fff;
        }

        .type-icon {
            width: 48px;
            height: 48px;
            background: var(--primary-soft);
            color: var(--primary);
            border-radius: 12px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 20px;
            margin-bottom: 16px;
            transition: background .25s ease, color .25s ease;
        }

        .type-card:hover .type-icon {
            background: var(--primary);
            color: #fff;
        }

        .type-card h3 {
            font-size: 18px;
            font-weight: 700;
            color: var(--text-1);
            margin-bottom: 8px;
        }

        .type-card p {
            font-size: 14px;
            color: var(--text-2);
            line-height: 1.7;
            margin: 0;
        }

        /* ===== Steps ===== */
        .step-item {
            text-align: center;
            padding: 24px 16px;
            position: relative;
        }

        .step-num {
            width: 44px;
            height: 44px;
            border-radius: 50%;
            background: var(--primary);
            color: #fff;
            font-size: 18px;
            font-weight: 700;
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 16px;
            box-shadow: var(--shadow-sm);
            position: relative;
            z-index: 1;
        }

        .step-item h3 {
            font-size: 16px;
            font-weight: 700;
            color: var(--text-1);
            margin-bottom: 6px;
        }

        .step-item p {
            font-size: 14px;
            color: var(--text-3);
            line-height: 1.6;
            margin: 0;
        }

        .step-item:not(:last-child)::after {
            content: "";
            position: absolute;
            top: 43px;
            left: calc(50% + 32px);
            width: calc(100% - 64px);
            height: 2px;
            background: var(--line);
            z-index: 0;
        }

        /* ===== FAQ ===== */
        .faq-section {
            background: #fff;
            border-top: 1px solid var(--line);
        }

        .faq-left h2 {
            font-size: 24px;
            font-weight: 700;
            color: var(--text-1);
            margin-bottom: 8px;
        }

        .faq-left p {
            font-size: 14px;
            color: var(--text-3);
            line-height: 1.6;
        }

        .accordion {
            --bs-accordion-border-width: 0;
            --bs-accordion-border-radius: 0;
            --bs-accordion-inner-border-radius: 0;
            --bs-accordion-btn-focus-box-shadow: none;
            --bs-accordion-bg: transparent;
        }

        .accordion-item {
            background: transparent;
            border: none;
            border-bottom: 1px solid var(--line);
            border-radius: 0 !important;
        }

        .accordion-item:first-child {
            border-top: 1px solid var(--line);
        }

        .accordion-header {
            background: transparent;
        }

        .accordion-button {
            background: transparent !important;
            color: var(--text-1);
            font-size: 15px;
            font-weight: 600;
            padding: 18px 20px 18px 0;
            border-radius: 0 !important;
            position: relative;
            line-height: 1.5;
            box-shadow: none !important;
        }

        .accordion-button::before {
            content: "";
            display: inline-block;
            width: 4px;
            height: 4px;
            background: var(--primary);
            border-radius: 50%;
            margin-right: 12px;
            vertical-align: middle;
            flex-shrink: 0;
        }

        .accordion-button:not(.collapsed) {
            color: var(--primary) !important;
            font-weight: 600;
        }

        .accordion-button::after {
            background-image: none !important;
            content: "+";
            font-size: 22px;
            font-weight: 400;
            color: var(--primary);
            width: auto;
            height: auto;
            line-height: 1;
            position: absolute;
            right: 0;
            top: 50%;
            transform: translateY(-50%);
            transition: transform .2s ease;
        }

        .accordion-button:not(.collapsed)::after {
            content: "-";
            transform: translateY(-50%);
        }

        .accordion-body {
            padding: 0 0 18px 16px;
            color: var(--text-2);
            font-size: 14px;
            line-height: 1.7;
            background: transparent;
        }

        /* ===== CTA Banner ===== */
        .cta-section {
            padding: 0 0 64px;
        }

        .cta-banner {
            background: var(--primary-deep);
            border-radius: var(--radius-lg);
            padding: 56px 48px;
            text-align: center;
            position: relative;
            overflow: hidden;
        }

        .cta-banner::before {
            content: "";
            position: absolute;
            width: 260px;
            height: 260px;
            border-radius: 50%;
            background: rgba(255, 255, 255, .08);
            top: -60px;
            right: -60px;
        }

        .cta-banner::after {
            content: "";
            position: absolute;
            width: 180px;
            height: 180px;
            border-radius: 50%;
            background: rgba(255, 255, 255, .06);
            bottom: -50px;
            left: -40px;
        }

        .cta-banner h2 {
            font-size: 28px;
            font-weight: 700;
            color: #fff;
            line-height: 1.4;
            margin-bottom: 12px;
            position: relative;
            z-index: 1;
        }

        .cta-banner p {
            font-size: 16px;
            color: rgba(255, 255, 255, .8);
            margin-bottom: 24px;
            position: relative;
            z-index: 1;
        }

        .cta-banner .btn {
            position: relative;
            z-index: 1;
        }

        /* ===== Footer ===== */
        .site-footer {
            background: #1F2E3D;
            color: #94A3B8;
            padding: 48px 0 24px;
        }

        .footer-top {
            display: grid;
            grid-template-columns: 1.4fr 1fr 1fr 1.2fr;
            gap: 24px;
            padding-bottom: 32px;
            border-bottom: 1px solid rgba(148, 163, 184, .15);
        }

        .footer-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            margin-bottom: 12px;
        }

        .footer-logo .brand-icon {
            background: var(--primary);
        }

        .footer-logo .brand-text {
            color: #fff;
        }

        .footer-desc {
            font-size: 14px;
            line-height: 1.7;
            color: #94A3B8;
            max-width: 260px;
            margin: 0;
        }

        .footer-title {
            font-size: 14px;
            font-weight: 600;
            color: #fff;
            margin-bottom: 16px;
            letter-spacing: .5px;
        }

        .footer-links {
            list-style: none;
            padding: 0;
            margin: 0;
            display: flex;
            flex-direction: column;
            gap: 10px;
        }

        .footer-links a {
            font-size: 13px;
            color: #94A3B8;
            transition: color .2s ease;
        }

        .footer-links a:hover {
            color: #fff;
        }

        .footer-contact {
            display: flex;
            flex-direction: column;
            gap: 10px;
            font-size: 13px;
        }

        .footer-contact span {
            display: flex;
            align-items: center;
            gap: 8px;
            color: #94A3B8;
        }

        .footer-contact i {
            width: 16px;
            text-align: center;
            color: var(--primary);
            font-size: 13px;
        }

        .footer-bottom {
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 8px;
            padding-top: 24px;
            font-size: 12px;
            color: #6B7F95;
        }

        /* ===== Focus States ===== */
        a:focus-visible,
        button:focus-visible,
        .btn:focus-visible,
        .page-link:focus-visible {
            outline: 2px solid var(--primary);
            outline-offset: 2px;
            box-shadow: 0 0 0 4px rgba(58, 124, 165, .2);
        }

        /* ===== Responsive ===== */
        @media (max-width: 1199.98px) {
            .container {
                max-width: 960px;
            }

            .topic-grid .col-xl-3 {
                flex: 0 0 33.333333%;
                max-width: 33.333333%;
            }

            .footer-top {
                grid-template-columns: 1.2fr 1fr 1fr;
            }

            .footer-brand {
                grid-column: 1 / -1;
            }
        }

        @media (max-width: 991.98px) {
            .site-header {
                height: 56px;
            }

            .search-box {
                display: none;
            }

            .main-nav {
                position: fixed;
                top: 56px;
                left: 0;
                right: 0;
                background: #fff;
                flex-direction: column;
                align-items: stretch;
                gap: 0;
                padding: 8px 24px 16px;
                box-shadow: var(--shadow-md);
                border-bottom: 1px solid var(--line);
                display: none;
            }

            .main-nav.open {
                display: flex;
            }

            .nav-link {
                padding: 14px 8px;
                font-size: 16px;
                border-bottom: 1px solid var(--line);
                border-radius: 0;
            }

            .nav-link.active::after {
                bottom: auto;
                top: 50%;
                left: 0;
                transform: translateY(-50%);
                width: 3px;
                height: 20px;
            }

            .nav-toggle {
                display: inline-flex;
            }

            .header-actions .btn-accent {
                padding: 0 16px;
                font-size: 14px;
            }

            .topic-grid .col-lg-4 {
                flex: 0 0 33.333333%;
                max-width: 33.333333%;
            }

            .category-hero {
                padding: 48px 0;
            }

            .category-hero h1 {
                font-size: 30px;
            }

            .footer-top {
                grid-template-columns: 1fr 1fr;
            }

            .footer-brand {
                grid-column: auto;
            }
        }

        @media (max-width: 767.98px) {
            .container {
                padding-left: 16px;
                padding-right: 16px;
            }

            .brand-text {
                font-size: 18px;
            }

            .section {
                padding: 48px 0;
            }

            .section-title {
                font-size: 22px;
            }

            .topic-grid .col-md-6 {
                flex: 0 0 50%;
                max-width: 50%;
            }

            .tip-bar {
                margin-top: -20px;
                padding: 14px 16px;
            }

            .type-card {
                padding: 24px 16px;
            }

            .faq-left {
                margin-bottom: 24px;
            }

            .cta-banner {
                padding: 40px 24px;
            }

            .cta-banner h2 {
                font-size: 24px;
            }

            .footer-top {
                grid-template-columns: 1fr;
                gap: 32px;
            }

            .footer-bottom {
                justify-content: center;
                text-align: center;
            }

            .step-item:not(:last-child)::after {
                display: none;
            }
        }

        @media (max-width: 575.98px) {
            .category-hero h1 {
                font-size: 26px;
            }

            .category-hero p {
                font-size: 14px;
            }

            .topic-grid .col-12 {
                flex: 0 0 100%;
                max-width: 100%;
            }

            .header-actions {
                gap: 8px;
            }

            .header-actions .btn-accent {
                height: 36px;
                padding: 0 14px;
                font-size: 13px;
            }

            .brand-icon {
                width: 28px;
                height: 28px;
            }

            .brand-text {
                font-size: 16px;
            }

            .card-meta {
                font-size: 12px;
            }

            .pagination .page-link {
                min-width: 32px;
                height: 32px;
                padding: 0 10px;
                font-size: 13px;
            }
        }

/* roulang page: category2 */
:root {
  --primary: #3A7CA5;
  --primary-deep: #2B5E80;
  --primary-soft: #E8F1F8;
  --accent: #FF7A2F;
  --accent-hover: #EA6210;
  --bg: #F6F9FC;
  --card-bg: #FFFFFF;
  --text-1: #1F2D3D;
  --text-2: #4E6072;
  --text-3: #8A9BAE;
  --border: #E3EAF0;
  --radius-lg: 12px;
  --radius-md: 10px;
  --radius-sm: 8px;
  --shadow-sm: 0 2px 8px rgba(31,45,61,.05);
  --shadow-md: 0 4px 16px rgba(31,45,61,.08);
  --shadow-lg: 0 12px 32px rgba(31,45,61,.12);
  --font-sans: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", system-ui, sans-serif;
}

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-sans);
  background: var(--bg);
  color: var(--text-1);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}

img {
  max-width: 100%;
  height: auto;
  display: block;
}

a {
  text-decoration: none;
  color: inherit;
  transition: color .2s ease;
}

button {
  border: none;
  cursor: pointer;
}

ul, ol {
  list-style: none;
}

.container {
  max-width: 1200px;
  padding-left: 24px;
  padding-right: 24px;
  margin-left: auto;
  margin-right: auto;
}

/* ===== Header ===== */
.site-header {
  background: #FFFFFF;
  border-bottom: 1px solid var(--border);
  box-shadow: 0 1px 4px rgba(31,45,61,.04);
  position: sticky;
  top: 0;
  z-index: 100;
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
  gap: 16px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-shrink: 0;
}

.brand-icon {
  width: 34px;
  height: 34px;
  background: var(--primary);
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-size: 17px;
  box-shadow: 0 2px 6px rgba(58,124,165,.3);
}

.brand-text {
  font-size: 20px;
  font-weight: 700;
  color: var(--text-1);
  letter-spacing: .5px;
  white-space: nowrap;
}

.main-nav {
  display: flex;
  align-items: center;
  gap: 6px;
}

.nav-link {
  padding: 8px 16px;
  font-size: 15px;
  font-weight: 500;
  color: var(--text-2);
  border-radius: 6px;
  position: relative;
  transition: color .2s ease, background .2s ease;
}

.nav-link:hover {
  color: var(--primary);
  background: var(--primary-soft);
}

.nav-link.active {
  color: var(--primary);
  font-weight: 600;
}

.nav-link.active::after {
  content: "";
  position: absolute;
  bottom: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 24px;
  height: 3px;
  border-radius: 999px;
  background: var(--primary);
}

/* ===== 分类 Hero ===== */
.category-hero {
  background: linear-gradient(135deg, rgba(43,94,128,.94), rgba(58,124,165,.86)), url('/assets/images/backpic/back-2.webp') center/cover no-repeat;
  padding: 80px 0 64px;
  color: #FFFFFF;
  text-align: center;
  position: relative;
}

.category-hero .breadcrumb-wrap {
  font-size: 13px;
  color: rgba(255,255,255,.72);
  margin-bottom: 20px;
}

.category-hero .breadcrumb-wrap a {
  color: rgba(255,255,255,.82);
}

.category-hero .breadcrumb-wrap a:hover {
  color: #fff;
}

.category-hero .breadcrumb-wrap i {
  font-size: 12px;
  margin: 0 6px;
  color: rgba(255,255,255,.5);
}

.category-hero h1 {
  font-size: 38px;
  font-weight: 700;
  line-height: 1.35;
  margin-bottom: 14px;
  letter-spacing: 2px;
}

.category-hero p {
  font-size: 16px;
  color: rgba(255,255,255,.85);
  max-width: 760px;
  margin: 0 auto;
  line-height: 1.8;
}

.category-hero .hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(255,255,255,.14);
  backdrop-filter: blur(4px);
  border: 1px solid rgba(255,255,255,.2);
  border-radius: 999px;
  padding: 6px 18px;
  font-size: 13px;
  color: rgba(255,255,255,.92);
  margin-bottom: 24px;
}

.category-hero .hero-badge i {
  color: var(--accent);
}

/* ===== 提示条 ===== */
.attention-card {
  background: #FFFFFF;
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-sm);
  padding: 20px 28px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  flex-wrap: wrap;
  margin-top: -34px;
  position: relative;
  z-index: 5;
  border: 1px solid var(--border);
}

.attention-card .attention-text {
  font-size: 15px;
  color: var(--text-2);
  line-height: 1.7;
}

.attention-card .attention-text i {
  color: var(--primary);
  margin-right: 6px;
}

.attention-card .attention-link {
  color: var(--primary);
  font-weight: 600;
  background: var(--primary-soft);
  padding: 9px 22px;
  border-radius: 999px;
  font-size: 14px;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  flex-shrink: 0;
}

.attention-card .attention-link:hover {
  background: var(--primary);
  color: #fff;
}

/* ===== 板块通用 ===== */
.section-pad {
  padding: 64px 0;
}

.section-title-wrap {
  text-align: center;
  margin-bottom: 40px;
}

.section-title-wrap .section-tag {
  display: inline-block;
  font-size: 13px;
  letter-spacing: 2px;
  color: var(--primary);
  background: var(--primary-soft);
  padding: 5px 16px;
  border-radius: 999px;
  margin-bottom: 12px;
}

.section-title-wrap h2 {
  font-size: 30px;
  font-weight: 700;
  color: var(--text-1);
  line-height: 1.4;
  margin-bottom: 10px;
}

.section-title-wrap p {
  font-size: 15px;
  color: var(--text-3);
  max-width: 680px;
  margin: 0 auto;
}

/* ===== 功能卡片 ===== */
.feature-card {
  background: var(--card-bg);
  border-radius: var(--radius-lg);
  padding: 32px 28px;
  text-align: center;
  height: 100%;
  box-shadow: var(--shadow-sm);
  border: 1px solid transparent;
  transition: box-shadow .25s ease, transform .25s ease, border-color .25s ease;
}

.feature-card:hover {
  box-shadow: var(--shadow-md);
  border-color: var(--border);
  transform: translateY(-3px);
}

.feature-card .feature-icon {
  width: 64px;
  height: 64px;
  border-radius: 16px;
  background: var(--primary-soft);
  color: var(--primary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 26px;
  margin: 0 auto 20px;
}

.feature-card:nth-child(2) .feature-icon {
  background: rgba(255,122,47,.12);
  color: var(--accent);
}

.feature-card h3 {
  font-size: 18px;
  font-weight: 700;
  margin-bottom: 12px;
  color: var(--text-1);
}

.feature-card p {
  font-size: 14px;
  color: var(--text-2);
  line-height: 1.75;
  margin-bottom: 0;
}

/* ===== 高光卡片网格 ===== */
.highlight-card {
  background: var(--card-bg);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-sm);
  overflow: hidden;
  transition: box-shadow .25s ease;
  display: block;
  height: 100%;
}

.highlight-card:hover {
  box-shadow: var(--shadow-md);
}

.highlight-card .card-cover {
  position: relative;
  overflow: hidden;
  aspect-ratio: 16/9;
  background: var(--primary-soft);
}

.highlight-card .card-cover img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform .3s ease;
}

.highlight-card:hover .card-cover img {
  transform: scale(1.04);
}

.highlight-card .card-badge {
  position: absolute;
  top: 12px;
  left: 12px;
  z-index: 2;
  font-size: 12px;
  background: rgba(255,255,255,.92);
  color: var(--primary);
  padding: 4px 12px;
  border-radius: 999px;
  font-weight: 600;
  backdrop-filter: blur(2px);
}

.highlight-card .card-body {
  padding: 16px;
}

.highlight-card .card-title {
  font-size: 16px;
  font-weight: 700;
  line-height: 1.45;
  margin-bottom: 8px;
  color: var(--text-1);
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.highlight-card .card-desc {
  font-size: 13px;
  color: var(--text-3);
  line-height: 1.6;
  margin-bottom: 12px;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.highlight-card .card-meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 13px;
  color: var(--text-3);
  border-top: 1px solid #f1f5f9;
  padding-top: 10px;
}

.highlight-card .card-meta span {
  display: inline-flex;
  align-items: center;
  gap: 5px;
}

.highlight-card .card-meta i {
  font-size: 12px;
  color: var(--text-3);
}

/* ===== 场景卡片 ===== */
.scene-card {
  background: var(--card-bg);
  border-radius: var(--radius-md);
  padding: 28px;
  height: 100%;
  box-shadow: var(--shadow-sm);
  border-left: 4px solid var(--primary);
  transition: box-shadow .25s ease;
}

.scene-card:hover {
  box-shadow: var(--shadow-md);
}

.scene-card .scene-icon {
  width: 44px;
  height: 44px;
  border-radius: 10px;
  background: var(--primary-soft);
  color: var(--primary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 18px;
  margin-bottom: 16px;
}

.scene-card h3 {
  font-size: 17px;
  font-weight: 700;
  margin-bottom: 8px;
  color: var(--text-1);
}

.scene-card p {
  font-size: 14px;
  color: var(--text-2);
  line-height: 1.7;
  margin-bottom: 0;
}

/* ===== 流程 ===== */
.process-section .process-step {
  text-align: center;
  padding: 28px 16px;
  position: relative;
}

.process-step .step-num {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: var(--primary);
  color: #fff;
  font-size: 17px;
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 16px;
  box-shadow: 0 4px 12px rgba(58,124,165,.35);
}

.process-step .step-icon {
  width: 64px;
  height: 64px;
  border-radius: 14px;
  background: var(--primary-soft);
  color: var(--primary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 24px;
  margin: 0 auto 16px;
}

.process-step h3 {
  font-size: 16px;
  font-weight: 700;
  margin-bottom: 6px;
  color: var(--text-1);
}

.process-step p {
  font-size: 13px;
  color: var(--text-3);
  line-height: 1.65;
  max-width: 180px;
  margin: 0 auto;
}

/* ===== FAQ ===== */
.faq-wrap {
  max-width: 860px;
  margin: 0 auto;
}

.faq-item {
  background: var(--card-bg);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-sm);
  margin-bottom: 12px;
  overflow: hidden;
}

.faq-item .faq-q {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 18px 24px;
  cursor: pointer;
  font-size: 15px;
  font-weight: 600;
  color: var(--text-1);
  background: #fff;
  width: 100%;
  text-align: left;
  transition: color .2s ease;
}

.faq-item .faq-q:hover {
  color: var(--primary);
}

.faq-item .faq-q .dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--primary);
  flex-shrink: 0;
}

.faq-item .faq-q .faq-icon {
  margin-left: auto;
  color: var(--text-3);
  font-size: 14px;
  flex-shrink: 0;
  transition: transform .2s ease;
}

.faq-item .faq-a {
  padding: 0 24px 20px 42px;
  font-size: 14px;
  color: var(--text-2);
  line-height: 1.8;
  display: none;
}

.faq-item.open .faq-a {
  display: block;
}

.faq-item.open .faq-icon {
  transform: rotate(45deg);
  color: var(--primary);
}

/* ===== CTA ===== */
.cta-banner {
  background: linear-gradient(135deg, var(--primary-deep) 0%, #3A7CA5 100%);
  border-radius: var(--radius-lg);
  padding: 56px 48px;
  color: #fff;
  position: relative;
  overflow: hidden;
  text-align: center;
}

.cta-banner::before {
  content: "";
  position: absolute;
  width: 320px;
  height: 320px;
  border-radius: 50%;
  background: rgba(255,255,255,.08);
  top: -120px;
  right: -80px;
}

.cta-banner::after {
  content: "";
  position: absolute;
  width: 180px;
  height: 180px;
  border-radius: 50%;
  background: rgba(255,255,255,.05);
  bottom: -60px;
  left: -40px;
}

.cta-banner h2 {
  font-size: 28px;
  font-weight: 700;
  margin-bottom: 12px;
  position: relative;
}

.cta-banner p {
  font-size: 15px;
  color: rgba(255,255,255,.82);
  margin-bottom: 28px;
  position: relative;
}

.btn-cta {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--accent);
  color: #fff;
  font-size: 15px;
  font-weight: 600;
  padding: 13px 36px;
  border-radius: 8px;
  transition: background .2s ease, box-shadow .2s ease, transform .2s ease;
  position: relative;
  z-index: 2;
}

.btn-cta:hover {
  background: var(--accent-hover);
  box-shadow: 0 8px 24px rgba(255,122,47,.35);
  transform: translateY(-2px);
  color: #fff;
}

/* ===== Footer ===== */
.site-footer {
  background: #1F2E3D;
  color: #94A3B8;
  padding: 48px 0 24px;
  margin-top: 64px;
}

.footer-top {
  display: grid;
  grid-template-columns: 1.6fr 1fr 1fr 1.2fr;
  gap: 32px;
  padding-bottom: 36px;
  border-bottom: 1px solid rgba(255,255,255,.08);
}

.footer-brand .brand {
  margin-bottom: 12px;
}

.footer-brand .brand-text {
  color: #fff;
}

.footer-brand .brand-icon {
  background: rgba(255,255,255,.12);
  color: #fff;
  box-shadow: none;
}

.footer-desc {
  font-size: 14px;
  line-height: 1.75;
  color: #94A3B8;
  max-width: 260px;
  margin-bottom: 0;
}

.footer-title {
  font-size: 15px;
  font-weight: 600;
  color: #fff;
  margin-bottom: 16px;
}

.footer-links {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.footer-links li a {
  font-size: 13px;
  color: #94A3B8;
  transition: color .2s ease;
}

.footer-links li a:hover {
  color: #fff;
}

.footer-contact {
  display: flex;
  flex-direction: column;
  gap: 10px;
  font-size: 13px;
  color: #94A3B8;
}

.footer-contact span {
  display: flex;
  align-items: center;
  gap: 8px;
}

.footer-contact i {
  width: 18px;
  color: #64748b;
}

.footer-bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
  padding-top: 24px;
  font-size: 12px;
  color: #6B7F95;
}

.footer-bottom a {
  color: #6B7F95;
}

.footer-bottom a:hover {
  color: #fff;
}

/* ===== 响应式 ===== */
@media (max-width: 1200px) {
  .container {
    max-width: 960px;
  }
}

@media (max-width: 992px) {
  .footer-top {
    grid-template-columns: 1fr 1fr;
    gap: 28px;
  }
  
  .section-pad {
    padding: 48px 0;
  }
}

@media (max-width: 768px) {
  .header-inner {
    height: 56px;
    gap: 10px;
  }
  
  .brand-text {
    font-size: 18px;
  }
  
  .brand-icon {
    width: 30px;
    height: 30px;
    font-size: 15px;
  }
  
  .main-nav {
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
    gap: 2px;
    padding-bottom: 2px;
    scrollbar-width: none;
  }
  
  .main-nav::-webkit-scrollbar {
    display: none;
  }
  
  .nav-link {
    padding: 6px 10px;
    font-size: 13px;
    white-space: nowrap;
  }
  
  .category-hero {
    padding: 56px 0 64px;
  }
  
  .category-hero h1 {
    font-size: 30px;
  }
  
  .category-hero p {
    font-size: 14px;
  }
  
  .attention-card {
    padding: 18px 20px;
    margin-top: -28px;
  }
  
  .attention-card .attention-text {
    font-size: 14px;
  }
  
  .section-title-wrap h2 {
    font-size: 24px;
  }
  
  .cta-banner {
    padding: 40px 24px;
  }
  
  .cta-banner h2 {
    font-size: 24px;
  }
  
  .cta-banner p {
    font-size: 14px;
  }
  
  .footer-top {
    grid-template-columns: 1fr;
    gap: 24px;
    padding-bottom: 28px;
  }
  
  .footer-desc {
    max-width: 100%;
  }
  
  .footer-bottom {
    flex-direction: column;
    text-align: center;
  }
}

@media (max-width: 576px) {
  .container {
    padding-left: 16px;
    padding-right: 16px;
  }
  
  .brand-text {
    font-size: 16px;
  }
  
  .category-hero {
    padding: 44px 0 52px;
  }
  
  .category-hero h1 {
    font-size: 26px;
  }
  
  .category-hero p {
    font-size: 13px;
  }
  
  .attention-card {
    flex-direction: column;
    align-items: flex-start;
    gap: 12px;
  }
  
  .attention-card .attention-link {
    width: 100%;
    justify-content: center;
  }
  
  .section-pad {
    padding: 40px 0;
  }
  
  .section-title-wrap {
    margin-bottom: 28px;
  }
  
  .section-title-wrap h2 {
    font-size: 22px;
  }
  
  .process-step p {
    max-width: 100%;
  }
  
  .cta-banner {
    border-radius: 0;
    padding: 36px 24px;
  }
  
  .cta-banner h2 {
    font-size: 22px;
  }
}