/* roulang page: index */
:root{
  --primary:#17568C;
  --primary-hover:#10456F;
  --primary-active:#0C3757;
  --primary-soft:#E7EFF7;
  --accent:#E07B39;
  --accent-hover:#C96A2C;
  --ink:#10243A;
  --ink-2:#445C74;
  --ink-3:#7C8FA3;
  --bg:#F6F8FB;
  --surface:#FFFFFF;
  --line:#E2E9F1;
  --tint:#F0F4F9;
  --ok:#2E8B62;
  --warn:#C9862B;
  --err:#C4453C;
  --r-card:16px;
  --r-img:12px;
  --r-btn:10px;
  --r-input:10px;
  --r-pill:999px;
  --sh-1:0 1px 2px rgba(16,36,58,.06), 0 10px 26px -18px rgba(16,36,58,.30);
  --sh-2:0 2px 4px rgba(16,36,58,.08), 0 18px 38px -20px rgba(16,36,58,.42);
  --container:1200px;
  --sp-section:92px;
}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:"Noto Sans SC","PingFang SC","Microsoft YaHei",-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,sans-serif;
  font-size:16px;
  line-height:1.8;
  color:var(--ink-2);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;height:auto;display:block}
a{color:var(--primary);text-decoration:none;transition:color .2s ease}
a:hover{color:var(--primary-hover)}
h1,h2,h3,h4{color:var(--ink);font-weight:700;margin:0}
p{margin:0 0 16px}
ul{margin:0;padding:0;list-style:none}
button,input{font-family:inherit;font-size:inherit}
:focus-visible{outline:2px solid var(--primary);outline-offset:2px}
.container-x{
  width:100%;
  max-width:var(--container);
  margin:0 auto;
  padding:0 32px;
}
@media (min-width:1400px){.container-x{max-width:1280px}}
.section{padding:var(--sp-section) 0}
.section-tint{background:var(--tint);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.section-head{max-width:760px;margin-bottom:40px}
.section-head .eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;font-weight:600;letter-spacing:.08em;
  color:var(--primary);background:var(--primary-soft);
  border-radius:var(--r-pill);padding:6px 14px;margin-bottom:16px;
}
.section-head h2{font-size:clamp(22px,2.4vw,31px);line-height:1.35;letter-spacing:-.3px;margin-bottom:14px}
.section-head p{font-size:16px;color:var(--ink-3);margin:0}
.section-head.center{margin-left:auto;margin-right:auto;text-align:center}

/* 顶栏 */
.site-header{
  position:sticky;top:0;z-index:1040;
  background:rgba(255,255,255,.96);
  backdrop-filter:blur(8px);
  border-bottom:1px solid var(--line);
  box-shadow:0 1px 2px rgba(16,36,58,.04);
  transition:box-shadow .25s ease;
}
.site-header.is-scrolled{box-shadow:0 6px 20px -14px rgba(16,36,58,.45)}
.header-inner{
  display:flex;align-items:center;gap:24px;
  height:72px;transition:height .25s ease;
}
.site-header.is-scrolled .header-inner{height:60px}
.brand{display:flex;align-items:center;gap:10px;flex-shrink:0}
.brand-icon{
  width:38px;height:38px;border-radius:11px;
  background:linear-gradient(140deg,var(--primary),#24699f);
  color:#fff;display:flex;align-items:center;justify-content:center;
  font-size:16px;box-shadow:0 8px 18px -12px rgba(23,86,140,.9);
}
.brand-text{font-size:19px;font-weight:700;color:var(--ink);letter-spacing:-.3px;white-space:nowrap}
.brand-text em{font-style:normal;color:var(--primary)}
.main-nav{display:flex;align-items:center;gap:4px;margin-left:8px;flex-wrap:nowrap}
.nav-link{
  position:relative;display:inline-block;
  padding:8px 14px;font-size:15px;font-weight:500;
  color:var(--ink-2);border-radius:8px;white-space:nowrap;
  transition:color .2s ease,background .2s ease;
}
.nav-link::after{
  content:"";position:absolute;left:14px;right:14px;bottom:2px;height:2px;
  border-radius:2px;background:var(--primary);
  transform:scaleX(0);transform-origin:center;transition:transform .22s ease;
}
.nav-link:hover{color:var(--primary);background:var(--primary-soft)}
.nav-link.active{color:var(--primary);font-weight:600}
.nav-link.active::after{transform:scaleX(1)}
.header-right{display:flex;align-items:center;gap:14px;margin-left:auto}
.search-box{
  display:flex;align-items:center;gap:8px;
  background:var(--tint);border:1px solid var(--line);
  border-radius:var(--r-pill);padding:0 16px;height:42px;width:220px;
  transition:border-color .2s ease,box-shadow .2s ease,background .2s ease;
}
.search-box i{color:var(--ink-3);font-size:14px}
.search-box input{
  border:0;background:transparent;outline:none;
  width:100%;font-size:14px;color:var(--ink);
}
.search-box input::placeholder{color:var(--ink-3)}
.search-box:focus-within{border-color:var(--primary);background:#fff;box-shadow:0 0 0 3px rgba(23,86,140,.12)}
.btn-cta{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:44px;padding:0 22px;border:0;border-radius:var(--r-btn);
  background:var(--accent);color:#fff;font-size:15px;font-weight:600;
  box-shadow:0 10px 22px -14px rgba(224,123,57,.95);
  transition:background .2s ease,transform .2s ease,box-shadow .2s ease;
  cursor:pointer;
}
.btn-cta:hover{background:var(--accent-hover);color:#fff;transform:translateY(-1px);box-shadow:var(--sh-2)}
.btn-cta:active{transform:translateY(0)}
.btn-outline-x{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:44px;padding:0 22px;border-radius:var(--r-btn);
  background:#fff;border:1px solid var(--primary);color:var(--primary);
  font-size:15px;font-weight:600;cursor:pointer;
  transition:background .2s ease,color .2s ease,transform .2s ease,box-shadow .2s ease;
}
.btn-outline-x:hover{background:var(--primary-soft);color:var(--primary-hover);transform:translateY(-1px)}
.btn-ghost{
  display:inline-flex;align-items:center;gap:8px;
  font-size:15px;font-weight:600;color:var(--primary);
}
.btn-ghost i{font-size:13px;transition:transform .22s ease}
.btn-ghost:hover i{transform:translateX(4px)}
.btn-ghost:hover{text-decoration:underline;text-underline-offset:4px}
.nav-toggle{
  display:none;width:44px;height:44px;border-radius:var(--r-btn);
  border:1px solid var(--line);background:#fff;color:var(--ink);
  align-items:center;justify-content:center;font-size:18px;cursor:pointer;
}
.mobile-drawer{
  display:none;border-top:1px solid var(--line);background:#fff;
  padding:16px 32px 24px;
}
.mobile-drawer.open{display:block}
.mobile-drawer .nav-link{display:block;padding:12px 4px;font-size:16px;border-bottom:1px solid var(--line)}
.mobile-drawer .nav-link::after{display:none}
.mobile-drawer .search-box{width:100%;margin:16px 0 12px}
.mobile-drawer .btn-cta{width:100%}

/* Hero */
.hero{
  position:relative;overflow:hidden;
  background:var(--surface);
  border-bottom:1px solid var(--line);
  padding:76px 0 72px;
}
.hero::before{
  content:"";position:absolute;inset:0;
  background-image:url('/assets/images/backpic/back-1.webp');
  background-size:cover;background-position:center;
  opacity:.10;
}
.hero::after{
  content:"";position:absolute;inset:0;
  background-image:linear-gradient(90deg,rgba(226,233,241,.55) 1px,transparent 1px),
                   linear-gradient(0deg,rgba(226,233,241,.55) 1px,transparent 1px);
  background-size:56px 56px;
  opacity:.5;
  pointer-events:none;
}
.hero .container-x{position:relative;z-index:2}
.hero-grid{display:grid;grid-template-columns:55% 45%;gap:48px;align-items:center}
.hero h1{
  font-size:clamp(28px,4vw,44px);
  line-height:1.28;letter-spacing:-.5px;
  margin-bottom:20px;
}
.hero h1 span{color:var(--primary)}
.hero-sub{font-size:17px;color:var(--ink-2);max-width:600px;margin-bottom:28px}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:26px}
.hero-points{display:flex;flex-wrap:wrap;gap:10px}
.point-chip{
  display:inline-flex;align-items:center;gap:7px;
  font-size:13.5px;font-weight:500;color:var(--ink-2);
  background:var(--tint);border:1px solid var(--line);
  border-radius:var(--r-pill);padding:7px 15px;
}
.point-chip i{color:var(--ok);font-size:12px}
.hero-visual{position:relative}
.hero-shot{
  width:100%;aspect-ratio:16/10;object-fit:cover;
  border-radius:var(--r-card);
  box-shadow:var(--sh-2);
  border:1px solid var(--line);
}
.float-card{
  position:absolute;left:-28px;bottom:-26px;
  width:270px;background:var(--surface);
  border:1px solid var(--line);border-radius:var(--r-card);
  box-shadow:var(--sh-2);padding:18px 20px;
}
.float-card h3{font-size:15px;margin-bottom:12px;display:flex;align-items:center;gap:8px}
.float-card h3 i{color:var(--accent);font-size:14px}
.float-card li{
  display:flex;align-items:flex-start;gap:8px;
  font-size:13.5px;color:var(--ink-2);line-height:1.6;padding:5px 0;
}
.float-card li i{color:var(--primary);font-size:12px;margin-top:6px}

/* 快捷入口条 */
.quick-strip{background:var(--tint);border-bottom:1px solid var(--line);padding:22px 0}
.quick-inner{display:flex;align-items:center;gap:12px;flex-wrap:wrap}
.quick-label{font-size:14px;font-weight:600;color:var(--ink-3);margin-right:6px}
.quick-badge{
  display:inline-flex;align-items:center;gap:7px;
  background:#fff;border:1px solid var(--line);border-radius:var(--r-pill);
  padding:8px 16px;font-size:14px;color:var(--ink-2);font-weight:500;
  transition:border-color .2s ease,color .2s ease,transform .2s ease,box-shadow .2s ease;
}
.quick-badge:hover{border-color:var(--primary);color:var(--primary);transform:translateY(-2px);box-shadow:var(--sh-1)}

/* 数据条 */
.stats-band{padding:52px 0;background:var(--surface);border-bottom:1px solid var(--line)}
.stats-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.stat-item{
  background:var(--tint);border:1px solid var(--line);
  border-radius:var(--r-card);padding:24px 22px;
  transition:transform .22s ease,box-shadow .22s ease,background .22s ease;
}
.stat-item:hover{transform:translateY(-2px);box-shadow:var(--sh-1);background:#fff}
.stat-num{font-size:30px;font-weight:700;color:var(--accent);letter-spacing:-1px;line-height:1.2}
.stat-label{font-size:15px;font-weight:600;color:var(--ink);margin-top:6px}
.stat-desc{font-size:13.5px;color:var(--ink-3);line-height:1.6;margin-top:4px}

/* 主题封面区 */
.cover-big,.cover-small{position:relative;display:block;overflow:hidden;border-radius:var(--r-card);border:1px solid var(--line);box-shadow:var(--sh-1);background:#fff}
.cover-big img,.cover-small img{width:100%;object-fit:cover;transition:transform .24s ease-out}
.cover-big img{aspect-ratio:16/9}
.cover-small img{aspect-ratio:4/3}
.cover-big:hover img,.cover-small:hover img{transform:scale(1.03)}
.cover-big:hover,.cover-small:hover{box-shadow:var(--sh-2);transform:translateY(-2px);transition:transform .24s ease-out,box-shadow .24s ease-out}
.cover-caption{
  position:absolute;left:0;right:0;bottom:0;
  padding:22px 22px 20px;
  background:linear-gradient(180deg,rgba(16,36,58,0) 0%,rgba(16,36,58,.82) 78%);
  color:#fff;
}
.cover-caption .tag{
  display:inline-block;font-size:12.5px;font-weight:600;
  background:rgba(255,255,255,.2);border:1px solid rgba(255,255,255,.35);
  border-radius:var(--r-pill);padding:3px 12px;margin-bottom:10px;
}
.cover-caption h3{color:#fff;font-size:20px;margin-bottom:6px;letter-spacing:-.2px}
.cover-caption p{color:rgba(255,255,255,.86);font-size:14px;margin:0}
.cover-mosaic{display:grid;grid-template-columns:repeat(12,1fr);gap:24px}
.cover-mosaic .col-a{grid-column:span 8}
.cover-mosaic .col-b{grid-column:span 4}
.cover-mosaic .col-c{grid-column:span 4}

/* 合集目录 */
.catalog-grid{display:grid;grid-template-columns:1fr 1fr;gap:0 48px}
.catalog-row{
  display:flex;align-items:center;gap:18px;
  padding:20px 16px;border-bottom:1px solid var(--line);
  transition:background .22s ease;
}
.catalog-row:hover{background:var(--primary-soft)}
.catalog-no{
  font-size:22px;font-weight:700;color:var(--accent);
  min-width:38px;letter-spacing:-1px;line-height:1;
}
.catalog-main{flex:1;min-width:0}
.catalog-main h3{font-size:17px;margin-bottom:4px}
.catalog-main p{font-size:14px;color:var(--ink-3);margin:0;overflow:hidden;display:-webkit-box;-webkit-line-clamp:1;-webkit-box-orient:vertical}
.catalog-count{font-size:13px;color:var(--ink-3);white-space:nowrap}
.catalog-arrow{color:var(--primary);font-size:14px;transition:transform .22s ease}
.catalog-row:hover .catalog-arrow{transform:translateX(4px)}
.catalog-row:hover .catalog-main h3{color:var(--primary)}

/* 精选条目 */
.card-post{
  background:var(--surface);border:1px solid var(--line);
  border-radius:var(--r-card);overflow:hidden;height:100%;
  display:flex;flex-direction:column;
  transition:transform .24s ease-out,box-shadow .24s ease-out;
}
.card-post:hover{transform:translateY(-2px);box-shadow:var(--sh-2)}
.card-media{overflow:hidden}
.card-media img{width:100%;aspect-ratio:16/9;object-fit:cover;transition:transform .24s ease-out}
.card-post:hover .card-media img{transform:scale(1.03)}
.card-body-x{padding:20px 22px 22px;display:flex;flex-direction:column;flex:1}
.badge-soft{
  display:inline-block;font-size:12.5px;font-weight:600;color:var(--primary);
  background:var(--primary-soft);border-radius:var(--r-pill);
  padding:4px 12px;margin-bottom:12px;align-self:flex-start;
}
.card-body-x h3{font-size:18px;line-height:1.5;margin-bottom:10px;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.card-body-x h3 a{color:var(--ink)}
.card-post:hover .card-body-x h3 a{color:var(--primary)}
.card-body-x .excerpt{
  font-size:14.5px;color:var(--ink-3);line-height:1.75;margin-bottom:18px;
  display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden;
}
.card-foot{
  margin-top:auto;display:flex;align-items:center;justify-content:space-between;
  gap:12px;padding-top:14px;border-top:1px solid var(--line);
}
.card-foot .meta{font-size:13px;color:var(--ink-3);display:flex;align-items:center;gap:8px}
.card-foot .meta i{font-size:12px}
.link-arrow{font-size:14px;font-weight:600;display:inline-flex;align-items:center;gap:7px}
.link-arrow i{font-size:12px;transition:transform .22s ease}
.link-arrow:hover i{transform:translateX(4px)}

/* 空态 */
.empty-state{
  border:1px dashed var(--line);border-radius:var(--r-card);
  background:var(--surface);padding:52px 28px;text-align:center;
}
.empty-state i{font-size:30px;color:var(--ink-3);margin-bottom:14px;display:block}
.empty-state p{font-size:15px;color:var(--ink-3);margin-bottom:18px}

/* 交替图文 */
.zigzag{display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:center}
.zigzag.reverse .zig-text{order:2}
.zig-text h2{font-size:clamp(21px,2.2vw,28px);line-height:1.4;margin-bottom:16px}
.zig-text p{font-size:16px;color:var(--ink-2)}
.zig-list{margin:20px 0 26px}
.zig-list li{display:flex;gap:12px;padding:9px 0;font-size:15px;color:var(--ink-2)}
.zig-list li i{color:var(--accent);font-size:14px;margin-top:6px}
.zig-media img{width:100%;aspect-ratio:4/3;object-fit:cover;border-radius:var(--r-card);border:1px solid var(--line);box-shadow:var(--sh-1)}

/* FAQ */
.faq-wrap{max-width:880px;margin:0 auto}
.accordion-x .accordion-item{
  background:transparent;border:0;border-bottom:1px solid var(--line);
}
.accordion-x .accordion-button{
  background:transparent;box-shadow:none;border:0;
  padding:22px 48px 22px 20px;font-size:17px;font-weight:600;color:var(--ink);
  position:relative;border-radius:0;text-align:left;
}
.accordion-x .accordion-button::before{
  content:"";position:absolute;left:0;top:24px;bottom:24px;width:3px;
  background:var(--primary);border-radius:2px;
}
.accordion-x .accordion-button::after{
  position:absolute;right:8px;top:50%;margin-top:-8px;
  transition:transform .24s ease;
  filter:invert(26%) sepia(38%) saturate(1640%) hue-rotate(180deg) brightness(88%) contrast(92%);
}
.accordion-x .accordion-button:not(.collapsed){color:var(--primary);background:var(--tint)}
.accordion-x .accordion-button:focus{box-shadow:0 0 0 3px rgba(23,86,140,.14)}
.accordion-x .accordion-body{
  background:var(--tint);font-size:15.5px;color:var(--ink-2);
  padding:6px 48px 24px 20px;line-height:1.85;
}

/* 收藏分享 CTA */
.cta-band{
  background:var(--surface);border:1px solid var(--line);
  border-radius:var(--r-card);box-shadow:var(--sh-1);
  padding:34px 36px;display:flex;align-items:center;gap:32px;flex-wrap:wrap;
}
.cta-band .cta-text{flex:1;min-width:260px}
.cta-band h2{font-size:clamp(19px,2vw,25px);margin-bottom:8px}
.cta-band p{font-size:15px;color:var(--ink-3);margin:0}
.cta-actions{display:flex;gap:12px;flex-wrap:wrap}
.share-group{display:flex;align-items:center;gap:10px;margin-left:6px}
.share-btn{
  width:44px;height:44px;border-radius:var(--r-btn);
  border:1px solid var(--line);background:#fff;color:var(--ink-2);
  display:inline-flex;align-items:center;justify-content:center;
  cursor:pointer;transition:all .2s ease;
}
.share-btn:hover{border-color:var(--primary);color:var(--primary);background:var(--primary-soft)}
.share-btn.is-on{background:var(--primary);border-color:var(--primary);color:#fff}

/* 页脚 */
.site-footer{background:var(--ink);color:rgba(255,255,255,.72);padding:64px 0 0;margin-top:0}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:40px}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px}
.footer-brand .brand-icon{background:linear-gradient(140deg,#2b6fa5,#17568C)}
.footer-brand span{font-size:18px;font-weight:700;color:#fff}
.footer-col h3{font-size:15px;color:#fff;margin-bottom:16px;font-weight:600;letter-spacing:.02em}
.footer-col li{padding:6px 0}
.footer-col a{color:rgba(255,255,255,.7);font-size:14.5px}
.footer-col a:hover{color:#fff}
.footer-desc{font-size:14px;line-height:1.8;color:rgba(255,255,255,.62);max-width:340px}
.footer-contact li{font-size:14.5px;display:flex;align-items:center;gap:10px;color:rgba(255,255,255,.7)}
.footer-contact i{color:var(--accent);font-size:13px;width:16px}
.footer-btn{
  margin-top:18px;display:inline-flex;align-items:center;gap:8px;
  height:42px;padding:0 20px;border-radius:var(--r-btn);
  background:var(--accent);color:#fff;font-size:14.5px;font-weight:600;
  transition:background .2s ease;
}
.footer-btn:hover{background:var(--accent-hover);color:#fff}
.footer-bottom{
  margin-top:52px;border-top:1px solid rgba(255,255,255,.12);
  padding:20px 0;display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13.5px;color:rgba(255,255,255,.5);
}
.footer-divider{display:block}

@media (max-width:1199px){
  .search-box{width:180px}
  .main-nav .nav-link{padding:8px 10px;font-size:14.5px}
}
@media (max-width:1100px){
  .main-nav{display:none}
  .nav-toggle{display:inline-flex}
}
@media (max-width:991px){
  :root{--sp-section:64px}
  .hero{padding:52px 0 56px}
  .hero-grid{grid-template-columns:1fr;gap:40px}
  .float-card{position:static;width:100%;margin-top:20px;left:auto;bottom:auto}
  .stats-grid{grid-template-columns:1fr 1fr}
  .cover-mosaic{grid-template-columns:repeat(12,1fr)}
  .cover-mosaic .col-a{grid-column:span 12}
  .cover-mosaic .col-b,.cover-mosaic .col-c{grid-column:span 6}
  .catalog-grid{grid-template-columns:1fr;gap:0}
  .zigzag{grid-template-columns:1fr;gap:32px}
  .zigzag.reverse .zig-text{order:0}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
  .footer-divider{display:none}
}
@media (max-width:767px){
  .container-x{padding:0 16px}
  .mobile-drawer{padding:14px 16px 20px}
  .brand-text{font-size:17px}
  .header-right{gap:10px}
  .search-box{display:none}
  .header-right .btn-cta{padding:0 16px;height:42px;font-size:14px}
  .stats-grid{grid-template-columns:1fr}
  .cover-mosaic .col-b,.cover-mosaic .col-c{grid-column:span 12}
  .cta-band{padding:26px 20px}
  .share-group{margin-left:0}
  .footer-grid{grid-template-columns:1fr}
  .accordion-x .accordion-button{font-size:16px;padding:18px 40px 18px 16px}
  .accordion-x .accordion-body{padding:6px 24px 20px 16px}
}
@media (max-width:575px){
  :root{--sp-section:46px}
  .hero h1{font-size:27px}
  .hero-sub{font-size:16px}
  .hero-actions{gap:10px}
  .hero-actions .btn-cta,.hero-actions .btn-outline-x{width:100%}
  .catalog-main p{display:none}
  .card-body-x{padding:16px}
}

/* roulang page: article */
:root{
  --primary:#17568C;
  --primary-hover:#10456F;
  --primary-active:#0C3757;
  --primary-soft:#E7EFF7;
  --accent:#E07B39;
  --accent-hover:#C96A2C;
  --ink:#10243A;
  --ink-2:#445C74;
  --ink-3:#7C8FA3;
  --bg:#F6F8FB;
  --surface:#FFFFFF;
  --line:#E2E9F1;
  --tint:#F0F4F9;
  --success:#2E8B62;
  --warning:#C9862B;
  --danger:#C4453C;
  --radius-card:16px;
  --radius-img:12px;
  --radius-btn:10px;
  --radius-pill:999px;
  --shadow-sm:0 1px 2px rgba(16,36,58,.06), 0 10px 26px -18px rgba(16,36,58,.30);
  --shadow-md:0 2px 4px rgba(16,36,58,.08), 0 18px 38px -20px rgba(16,36,58,.42);
  --ease:240ms ease-out;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:"PingFang SC","Microsoft YaHei","Hiragino Sans GB","Noto Sans SC",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
  font-size:16px;
  line-height:1.8;
  color:var(--ink-2);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;}
a{color:var(--primary);text-decoration:none;transition:color var(--ease);}
a:hover{color:var(--primary-hover);}
button,input{font:inherit;}
h1,h2,h3,h4{margin:0;color:var(--ink);letter-spacing:-.2px;}
p{margin:0;}
ul{margin:0;padding:0;list-style:none;}
:focus-visible{outline:2px solid var(--primary);outline-offset:2px;border-radius:6px;}
.container-x{width:100%;max-width:1200px;margin:0 auto;padding:0 32px;}
@media (min-width:1400px){.container-x{max-width:1280px;}}

/* ============ HEADER ============ */
.site-header{
  position:sticky;top:0;z-index:1200;
  background:rgba(255,255,255,.96);
  backdrop-filter:saturate(180%) blur(8px);
  border-bottom:1px solid var(--line);
  box-shadow:0 1px 2px rgba(16,36,58,.04);
  transition:height var(--ease),box-shadow var(--ease);
}
.header-inner{display:flex;align-items:center;gap:18px;height:72px;}
.brand{display:flex;align-items:center;gap:10px;font-size:19px;font-weight:700;color:var(--ink);white-space:nowrap;letter-spacing:-.3px;}
.brand:hover{color:var(--ink);}
.brand-icon{
  width:38px;height:38px;border-radius:11px;background:var(--primary);color:#fff;
  display:grid;place-items:center;font-size:17px;
  box-shadow:0 8px 18px -10px rgba(23,86,140,.95);
}
.main-nav{display:flex;align-items:center;gap:4px;flex:1;}
.nav-link{
  position:relative;padding:9px 13px;border-radius:9px;font-size:15px;color:var(--ink-2);
  transition:color var(--ease),background var(--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;left:13px;right:13px;bottom:2px;height:2px;
  background:var(--primary);border-radius:2px;
}
.header-actions{display:flex;align-items:center;gap:12px;}
.search-box{
  display:flex;align-items:center;gap:8px;height:40px;padding:0 16px;
  background:var(--tint);border:1px solid var(--line);border-radius:var(--radius-pill);
  width:200px;transition:border-color var(--ease),box-shadow var(--ease),background var(--ease);
}
.search-box i{color:var(--ink-3);font-size:13px;}
.search-box input{
  border:0;background:transparent;outline:none;width:100%;font-size:14px;color:var(--ink);
}
.search-box input::placeholder{color:var(--ink-3);}
.search-box:focus-within{background:#fff;border-color:var(--primary);box-shadow:0 0 0 3px rgba(23,86,140,.13);}
.btn-primary{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:46px;padding:0 24px;border:0;border-radius:var(--radius-btn);
  background:var(--accent);color:#fff;font-size:15px;font-weight:600;cursor:pointer;
  box-shadow:0 10px 22px -14px rgba(224,123,57,.95);
  transition:background var(--ease),transform var(--ease),box-shadow var(--ease);
}
.btn-primary:hover{background:var(--accent-hover);color:#fff;transform:translateY(-1px);box-shadow:var(--shadow-md);}
.btn-primary:active{transform:translateY(0);}
.header-cta{height:40px;padding:0 18px;font-size:14px;border-radius:var(--radius-pill);}
.nav-toggle{
  display:none;width:42px;height:42px;border-radius:10px;border:1px solid var(--line);
  background:#fff;color:var(--ink);cursor:pointer;font-size:16px;
}
.nav-toggle:hover{background:var(--primary-soft);border-color:var(--primary-soft);color:var(--primary);}

/* ============ PAGE HERO ============ */
.page-hero{position:relative;overflow:hidden;background:var(--ink);padding:64px 0 46px;}
.page-hero-bg{
  position:absolute;inset:0;
  background-image:url('/assets/images/backpic/back-2.webp');
  background-size:cover;background-position:center;
  opacity:.38;
}
.page-hero::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(160deg,rgba(23,86,140,.90) 0%,rgba(16,36,58,.92) 100%);
}
.page-hero .container-x{position:relative;z-index:2;}
.breadcrumb-line{
  display:flex;align-items:center;flex-wrap:wrap;gap:8px;
  font-size:13.5px;color:rgba(255,255,255,.78);margin-bottom:18px;
}
.breadcrumb-line a{color:rgba(255,255,255,.78);}
.breadcrumb-line a:hover{color:#fff;text-decoration:underline;text-underline-offset:3px;}
.breadcrumb-line .sep{opacity:.5;}
.page-hero h1{
  color:#fff;font-size:clamp(28px,4vw,44px);font-weight:700;line-height:1.28;
  letter-spacing:-.5px;max-width:940px;
}
.hero-lead{
  margin-top:16px;max-width:780px;font-size:16px;line-height:1.85;
  color:rgba(255,255,255,.86);
}
.hero-meta{
  display:flex;align-items:center;flex-wrap:wrap;gap:10px 20px;margin-top:24px;
  font-size:14px;color:rgba(255,255,255,.82);
}
.hero-meta span{display:inline-flex;align-items:center;gap:7px;}
.hero-meta i{font-size:13px;opacity:.85;}
.hero-meta .pill{
  background:rgba(255,255,255,.16);border:1px solid rgba(255,255,255,.26);
  border-radius:var(--radius-pill);padding:4px 14px;font-size:13px;color:#fff;
}

/* ============ ARTICLE LAYOUT ============ */
.section{padding:64px 0;}
.article-layout{display:grid;grid-template-columns:minmax(0,1fr) 306px;gap:36px;align-items:start;}
.article-main{min-width:0;}
.article-card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-card);
  box-shadow:var(--shadow-sm);padding:40px 46px;
}
.article-body{max-width:800px;font-size:17px;line-height:1.9;color:var(--ink-2);}
.article-body > *:first-child{margin-top:0;}
.article-body p{margin:0 0 20px;}
.article-body h2{
  font-size:clamp(22px,2.4vw,28px);font-weight:700;line-height:1.4;color:var(--ink);
  margin:40px 0 16px;padding-left:14px;border-left:4px solid var(--primary);
}
.article-body h3{
  font-size:20px;font-weight:600;line-height:1.5;color:var(--ink);
  margin:30px 0 12px;padding-left:12px;border-left:3px solid var(--accent);
}
.article-body h4{font-size:17px;font-weight:600;color:var(--ink);margin:22px 0 10px;}
.article-body a{color:var(--primary);text-decoration:underline;text-decoration-color:var(--accent);text-underline-offset:3px;}
.article-body a:hover{color:var(--primary-hover);}
.article-body strong{color:var(--ink);font-weight:600;}
.article-body ul,.article-body ol{padding-left:22px;margin:0 0 20px;list-style:disc;}
.article-body ol{list-style:decimal;}
.article-body li{margin-bottom:9px;}
.article-body blockquote{
  background:var(--tint);border-left:3px solid var(--primary);
  border-radius:0 var(--radius-img) var(--radius-img) 0;
  padding:18px 24px;margin:26px 0;color:var(--ink-2);
}
.article-body blockquote p:last-child{margin-bottom:0;}
.article-body img{border-radius:var(--radius-img);margin:26px auto;box-shadow:var(--shadow-sm);}
.article-body hr{border:0;border-top:1px solid var(--line);margin:34px 0;}
.article-body table{
  display:block;width:100%;overflow-x:auto;border-collapse:collapse;margin:26px 0;
  white-space:nowrap;font-size:15px;
}
.article-body th,.article-body td{border:1px solid var(--line);padding:11px 15px;text-align:left;}
.article-body th{background:var(--tint);color:var(--ink);font-weight:600;}
.article-body code{
  background:var(--tint);border-radius:6px;padding:2px 7px;font-size:14px;color:var(--primary-active);
}
.empty-state{
  text-align:center;padding:56px 24px;border:1px dashed var(--line);
  border-radius:var(--radius-card);background:var(--tint);
}
.empty-state h2{font-size:22px;margin-bottom:12px;padding:0;border:0;}
.empty-state p{margin-bottom:22px;color:var(--ink-3);}
.btn-secondary{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:46px;padding:0 26px;border-radius:var(--radius-btn);
  background:#fff;border:1px solid var(--primary);color:var(--primary);
  font-size:15px;font-weight:600;cursor:pointer;
  transition:background var(--ease),color var(--ease),transform var(--ease),box-shadow var(--ease);
}
.btn-secondary:hover{background:var(--primary-soft);color:var(--primary-hover);transform:translateY(-1px);box-shadow:var(--shadow-sm);}
.btn-text{
  display:inline-flex;align-items:center;gap:8px;font-size:15px;font-weight:600;color:var(--primary);
}
.btn-text i{transition:transform var(--ease);font-size:13px;}
.btn-text:hover{color:var(--primary-hover);text-decoration:underline;text-underline-offset:3px;}
.btn-text:hover i{transform:translateX(4px);}

/* ============ TAG ROW ============ */
.tag-block{
  margin-top:34px;padding-top:26px;border-top:1px solid var(--line);
  display:flex;align-items:center;flex-wrap:wrap;gap:10px;
}
.tag-label{font-size:14px;color:var(--ink-3);margin-right:4px;}
.tag{
  display:inline-flex;align-items:center;height:32px;padding:0 15px;
  background:var(--primary-soft);color:var(--primary);border-radius:var(--radius-pill);
  font-size:13.5px;border:1px solid transparent;transition:background var(--ease),color var(--ease);
}
.tag:hover{background:var(--primary);color:#fff;}

/* ============ SIDEBAR ============ */
.side-sticky{position:sticky;top:96px;display:flex;flex-direction:column;gap:20px;}
.side-card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-card);
  box-shadow:var(--shadow-sm);padding:24px;
}
.side-card h2{font-size:16px;font-weight:600;margin-bottom:16px;display:flex;align-items:center;gap:8px;}
.side-card h2 i{color:var(--accent);font-size:14px;}
.side-list li + li{border-top:1px solid var(--line);}
.side-list a{
  display:flex;align-items:center;justify-content:space-between;gap:10px;
  padding:11px 0;font-size:14.5px;color:var(--ink-2);
  transition:color var(--ease),padding-left var(--ease);
}
.side-list a:hover{color:var(--primary);padding-left:4px;}
.side-list a i{font-size:12px;color:var(--ink-3);}
.side-note{font-size:14px;line-height:1.85;color:var(--ink-2);}
.side-stat{display:flex;gap:12px;margin-top:16px;}
.side-stat div{
  flex:1;background:var(--tint);border-radius:var(--radius-img);padding:12px 14px;text-align:center;
}
.side-stat strong{display:block;font-size:20px;color:var(--primary);font-weight:700;line-height:1.3;}
.side-stat span{font-size:12.5px;color:var(--ink-3);}
.side-cta{
  background:linear-gradient(150deg,var(--primary) 0%,var(--primary-active) 100%);
  color:#fff;border:0;
}
.side-cta h2{color:#fff;}
.side-cta h2 i{color:#fff;}
.side-cta p{font-size:14px;line-height:1.85;color:rgba(255,255,255,.86);margin-bottom:18px;}
.side-cta .btn-primary{width:100%;background:#fff;color:var(--primary);box-shadow:none;}
.side-cta .btn-primary:hover{background:var(--primary-soft);color:var(--primary-active);}

/* ============ PREV / NEXT ============ */
.nav-pair{display:grid;grid-template-columns:1fr 1fr;gap:20px;margin-top:32px;}
.pair-card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-card);
  box-shadow:var(--shadow-sm);padding:24px 26px;display:flex;flex-direction:column;gap:10px;
  transition:transform var(--ease),box-shadow var(--ease),border-color var(--ease);
}
.pair-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-md);border-color:var(--primary-soft);}
.pair-label{font-size:13px;color:var(--ink-3);letter-spacing:.4px;}
.pair-card h3{font-size:17px;font-weight:600;line-height:1.55;color:var(--ink);}
.pair-card:hover h3{color:var(--primary);}
.pair-card .btn-text{margin-top:auto;}

/* ============ RELATED ============ */
.related-block{margin-top:56px;}
.block-head{margin-bottom:26px;}
.block-head h2{font-size:clamp(22px,2.6vw,30px);font-weight:700;line-height:1.35;}
.block-head p{margin-top:10px;font-size:15px;color:var(--ink-3);}
.card-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px;}
.post-card{
  display:flex;flex-direction:column;background:var(--surface);
  border:1px solid var(--line);border-radius:var(--radius-card);overflow:hidden;
  box-shadow:var(--shadow-sm);
  transition:transform var(--ease),box-shadow var(--ease),border-color var(--ease);
}
.post-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-md);border-color:var(--primary-soft);}
.post-card .thumb{position:relative;aspect-ratio:16/9;overflow:hidden;background:var(--tint);}
.post-card .thumb img{width:100%;height:100%;object-fit:cover;transition:transform var(--ease);}
.post-card:hover .thumb img{transform:scale(1.03);}
.post-card .badge-cat{
  position:absolute;left:14px;top:14px;height:28px;padding:0 12px;display:inline-flex;align-items:center;
  background:rgba(255,255,255,.94);color:var(--primary);border-radius:var(--radius-pill);
  font-size:12.5px;font-weight:600;
}
.post-card .body{padding:22px 24px 24px;display:flex;flex-direction:column;gap:12px;flex:1;}
.post-card h3{font-size:18px;font-weight:600;line-height:1.55;color:var(--ink);}
.post-card:hover h3{color:var(--primary);}
.post-card p{font-size:14.5px;line-height:1.8;color:var(--ink-2);}
.post-card .foot{
  margin-top:auto;display:flex;align-items:center;justify-content:space-between;
  font-size:13px;color:var(--ink-3);padding-top:6px;
}
.post-card .foot i{transition:transform var(--ease);color:var(--primary);}
.post-card:hover .foot i{transform:translateX(4px);}

/* ============ CTA BAR ============ */
.cta-bar{
  margin-top:56px;background:var(--surface);border:1px solid var(--line);
  border-radius:var(--radius-card);box-shadow:var(--shadow-sm);
  padding:32px 36px;display:flex;align-items:center;justify-content:space-between;gap:28px;flex-wrap:wrap;
}
.cta-bar h2{font-size:20px;font-weight:700;margin-bottom:8px;}
.cta-bar p{font-size:14.5px;color:var(--ink-2);max-width:560px;}
.cta-actions{display:flex;align-items:center;gap:12px;flex-wrap:wrap;}
.icon-btn{
  width:46px;height:46px;border-radius:var(--radius-btn);border:1px solid var(--line);
  background:#fff;color:var(--ink-2);display:grid;place-items:center;cursor:pointer;font-size:15px;
  transition:background var(--ease),color var(--ease),border-color var(--ease),transform var(--ease);
}
.icon-btn:hover{background:var(--primary-soft);color:var(--primary);border-color:var(--primary-soft);transform:translateY(-1px);}
.icon-btn.on{background:var(--primary);border-color:var(--primary);color:#fff;}

/* ============ FOOTER ============ */
.site-footer{background:var(--ink);color:rgba(255,255,255,.72);padding:64px 0 26px;margin-top:72px;}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.3fr;gap:40px;}
.footer-col h3{font-size:15px;font-weight:600;color:#fff;margin-bottom:18px;}
.footer-col ul li{margin-bottom:11px;}
.footer-col ul li a{font-size:14px;color:rgba(255,255,255,.72);}
.footer-col ul li a:hover{color:#fff;}
.footer-brand{display:flex;align-items:center;gap:10px;font-size:18px;font-weight:700;color:#fff;margin-bottom:16px;}
.footer-brand .brand-icon{background:rgba(255,255,255,.14);box-shadow:none;}
.footer-desc{font-size:14px;line-height:1.9;color:rgba(255,255,255,.66);max-width:340px;}
.footer-contact li{display:flex;align-items:center;gap:10px;font-size:14px;color:rgba(255,255,255,.72);margin-bottom:12px;}
.footer-contact i{color:rgba(255,255,255,.5);font-size:13px;}
.footer-btn{
  display:inline-flex;align-items:center;gap:8px;height:44px;padding:0 22px;margin-top:6px;
  border-radius:var(--radius-btn);background:var(--accent);color:#fff;font-size:14px;font-weight:600;
  transition:background var(--ease),transform var(--ease);
}
.footer-btn:hover{background:var(--accent-hover);color:#fff;transform:translateY(-1px);}
.footer-bottom{
  margin-top:44px;padding-top:22px;border-top:1px solid rgba(255,255,255,.12);
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13px;color:rgba(255,255,255,.55);
}
@media (min-width:992px){
  .footer-col + .footer-col{border-left:1px solid rgba(255,255,255,.10);padding-left:36px;}
}

/* ============ RESPONSIVE ============ */
@media (max-width:1199px){
  .article-layout{grid-template-columns:minmax(0,1fr) 280px;gap:28px;}
  .card-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
}
@media (max-width:991px){
  .header-inner{gap:12px;}
  .search-box{display:none;}
  .main-nav{
    position:fixed;top:72px;right:0;width:min(320px,86vw);height:calc(100vh - 72px);
    background:#fff;border-left:1px solid var(--line);
    flex-direction:column;align-items:stretch;gap:2px;padding:20px 18px;flex:none;
    transform:translateX(105%);transition:transform var(--ease);
    box-shadow:-12px 0 30px -22px rgba(16,36,58,.45);overflow-y:auto;
  }
  .main-nav.open{transform:translateX(0);}
  .main-nav .nav-link{padding:13px 14px;font-size:15.5px;}
  .main-nav .nav-link.active{background:var(--primary-soft);}
  .main-nav .nav-link.active::after{display:none;}
  .nav-toggle{display:grid;place-items:center;}
  .article-layout{grid-template-columns:minmax(0,1fr);}
  .side-sticky{position:static;}
  .article-card{padding:30px 26px;}
  .footer-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:32px;}
  .page-hero{padding:48px 0 38px;}
}
@media (max-width:767px){
  .container-x{padding:0 20px;}
  .section{padding:48px 0;}
  .card-grid{grid-template-columns:minmax(0,1fr);}
  .nav-pair{grid-template-columns:minmax(0,1fr);}
  .article-body{font-size:16.5px;}
  .cta-bar{padding:26px 22px;}
  .cta-actions{width:100%;}
}
@media (max-width:575px){
  .container-x{padding:0 16px;}
  .brand span:last-child{font-size:17px;}
  .article-card{padding:22px 18px;}
  .hero-meta{gap:8px 14px;font-size:13px;}
  .footer-grid{grid-template-columns:minmax(0,1fr);}
  .footer-col + .footer-col{border-left:0;padding-left:0;}
  .page-hero{padding:40px 0 32px;}
}

/* roulang page: category1 */
:root{
  --primary:#17568C;
  --primary-hover:#10456F;
  --primary-active:#0C3757;
  --primary-soft:#E7EFF7;
  --accent:#E07B39;
  --accent-hover:#C96A2C;
  --ink:#10243A;
  --ink-2:#445C74;
  --ink-3:#7C8FA3;
  --bg:#F6F8FB;
  --surface:#FFFFFF;
  --line:#E2E9F1;
  --tint:#F0F4F9;
  --success:#2E8B62;
  --warn:#C9862B;
  --danger:#C4453C;
  --r-card:16px;
  --r-img:12px;
  --r-btn:10px;
  --r-pill:999px;
  --sh-1:0 1px 2px rgba(16,36,58,.06), 0 10px 26px -18px rgba(16,36,58,.30);
  --sh-2:0 2px 4px rgba(16,36,58,.08), 0 18px 38px -20px rgba(16,36,58,.42);
  --ease:240ms ease-out;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC",-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Helvetica,Arial,sans-serif;
  font-size:16px;
  line-height:1.8;
  color:var(--ink-2);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{color:var(--primary);text-decoration:none;transition:color var(--ease)}
a:hover{color:var(--primary-hover)}
h1,h2,h3,h4{color:var(--ink);margin:0;font-weight:700;letter-spacing:-.4px}
p{margin:0}
ul{list-style:none;margin:0;padding:0}
button{font-family:inherit}
:focus-visible{outline:2px solid var(--primary);outline-offset:2px}
.container-x{width:100%;max-width:1200px;margin:0 auto;padding:0 16px}
@media(min-width:768px){.container-x{padding:0 24px}}
@media(min-width:992px){.container-x{padding:0 32px}}
@media(min-width:1400px){.container-x{max-width:1280px}}

/* ---------- Header ---------- */
.site-header{
  position:sticky;top:0;z-index:1030;
  background:var(--surface);
  border-bottom:1px solid var(--line);
  box-shadow:0 1px 0 rgba(16,36,58,.02),0 8px 20px -20px rgba(16,36,58,.55);
  transition:box-shadow var(--ease);
}
.site-header.is-scrolled{box-shadow:0 2px 6px rgba(16,36,58,.06),0 14px 30px -24px rgba(16,36,58,.55)}
.header-inner{display:flex;align-items:center;gap:20px;height:72px;transition:height var(--ease)}
.site-header.is-scrolled .header-inner{height:60px}
.brand{display:flex;align-items:center;gap:10px;font-size:19px;font-weight:700;color:var(--ink);white-space:nowrap}
.brand:hover{color:var(--ink)}
.brand-icon{
  width:36px;height:36px;border-radius:11px;flex:none;
  display:grid;place-items:center;font-size:16px;color:#fff;
  background:linear-gradient(135deg,var(--primary) 0%,#2C74B3 100%);
  box-shadow:0 6px 14px -8px rgba(23,86,140,.85);
}
.main-nav{display:flex;align-items:center;gap:4px;margin-left:6px}
.nav-link{
  position:relative;display:inline-block;
  padding:8px 13px;border-radius:8px;
  font-size:15px;color:var(--ink-2);
  transition:color var(--ease),background var(--ease);
}
.nav-link:hover{color:var(--primary);background:var(--tint)}
.nav-link.active{color:var(--primary);font-weight:600}
.nav-link.active::after{
  content:"";position:absolute;left:13px;right:13px;bottom:-2px;height:2px;border-radius:2px;background:var(--primary);
}
.header-tools{margin-left:auto;display:flex;align-items:center;gap:12px}
.search-box{position:relative;display:flex;align-items:center}
.search-box .fa-magnifying-glass{position:absolute;left:13px;font-size:13px;color:var(--ink-3);pointer-events:none}
.search-input{
  width:200px;height:40px;padding:0 16px 0 34px;
  border:1px solid var(--line);border-radius:var(--r-pill);
  background:var(--tint);color:var(--ink);font-size:14px;
  transition:border-color var(--ease),background var(--ease),box-shadow var(--ease);
}
.search-input::placeholder{color:var(--ink-3)}
.search-input:focus{outline:none;background:#fff;border-color:var(--primary);box-shadow:0 0 0 3px rgba(23,86,140,.12)}

/* ---------- Buttons ---------- */
.btn-x{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:46px;padding:0 24px;border-radius:var(--r-btn);
  font-size:15px;font-weight:600;line-height:1;
  border:1px solid transparent;cursor:pointer;
  transition:background var(--ease),color var(--ease),box-shadow var(--ease),transform var(--ease),border-color var(--ease);
}
.btn-main{background:var(--accent);color:#fff;box-shadow:0 8px 18px -12px rgba(224,123,57,.95)}
.btn-main:hover{background:var(--accent-hover);color:#fff;transform:translateY(-1px);box-shadow:var(--sh-2)}
.btn-main:active{background:#B85F26;transform:translateY(0)}
.btn-ghost{background:#fff;border-color:var(--primary);color:var(--primary)}
.btn-ghost:hover{background:var(--primary-soft);color:var(--primary-hover);border-color:var(--primary-hover)}
.btn-ghost:active{background:#D8E5F2}
.btn-sm{height:40px;padding:0 18px;font-size:14px}
.btn-link-arrow{
  display:inline-flex;align-items:center;gap:6px;
  color:var(--primary);font-weight:600;font-size:15px;background:none;border:none;padding:0;cursor:pointer;
}
.btn-link-arrow i{transition:transform var(--ease)}
.btn-link-arrow:hover{color:var(--primary-hover);text-decoration:underline;text-underline-offset:4px}
.btn-link-arrow:hover i{transform:translateX(4px)}

/* ---------- Page hero ---------- */
.page-hero{
  position:relative;color:#fff;
  padding:60px 0 64px;min-height:330px;display:flex;align-items:center;
  background-image:linear-gradient(rgba(23,86,140,.64),rgba(12,55,87,.74)),url('/assets/images/backpic/back-2.webp');
  background-size:cover;background-position:center;
}
.breadcrumb-x{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13.5px;color:rgba(255,255,255,.8);margin-bottom:18px}
.breadcrumb-x a{color:rgba(255,255,255,.82)}
.breadcrumb-x a:hover{color:#fff;text-decoration:underline;text-underline-offset:3px}
.breadcrumb-x .sep{opacity:.55}
.breadcrumb-x .current{color:#fff}
.hero-eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  padding:6px 14px;border-radius:var(--r-pill);
  background:rgba(255,255,255,.15);border:1px solid rgba(255,255,255,.3);
  font-size:13px;color:#fff;margin-bottom:18px;
}
.page-hero h1{
  color:#fff;font-size:clamp(28px,4vw,44px);line-height:1.28;font-weight:700;letter-spacing:-.5px;max-width:820px;
}
.hero-sub{margin-top:16px;max-width:720px;font-size:16.5px;line-height:1.8;color:rgba(255,255,255,.9)}
.hero-actions{margin-top:26px;display:flex;flex-wrap:wrap;gap:12px}
.hero-actions .btn-ghost{background:rgba(255,255,255,.12);border-color:rgba(255,255,255,.55);color:#fff}
.hero-actions .btn-ghost:hover{background:rgba(255,255,255,.22);color:#fff;border-color:#fff}

/* ---------- Sections ---------- */
.section{padding:88px 0}
.section-tint{background:var(--tint);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.section-head{max-width:780px;margin-bottom:36px}
.section-title{font-size:clamp(24px,3vw,32px);line-height:1.35}
.section-desc{margin-top:14px;font-size:16px;color:var(--ink-2);line-height:1.8}
.section-kicker{
  display:inline-flex;align-items:center;gap:8px;margin-bottom:14px;
  font-size:13px;font-weight:600;color:var(--primary);
  padding:5px 12px;border-radius:var(--r-pill);background:var(--primary-soft);
}

/* ---------- Badges ---------- */
.badge-soft{
  display:inline-flex;align-items:center;gap:6px;
  padding:4px 11px;border-radius:var(--r-pill);
  background:var(--primary-soft);color:var(--primary);
  font-size:12.5px;font-weight:600;line-height:1.6;
}
.badge-accent{
  display:inline-flex;align-items:center;gap:6px;
  padding:4px 11px;border-radius:var(--r-pill);
  background:rgba(224,123,57,.14);color:#A8541F;
  font-size:12.5px;font-weight:600;line-height:1.6;
}
.badge-plain{
  display:inline-flex;align-items:center;gap:6px;
  padding:4px 11px;border-radius:var(--r-pill);
  background:var(--tint);border:1px solid var(--line);color:var(--ink-2);
  font-size:12.5px;font-weight:500;line-height:1.6;
}

/* ---------- Cover grid ---------- */
.cover-grid{display:grid;grid-template-columns:1.55fr 1fr;gap:24px}
.cover-side{display:flex;flex-direction:column;gap:24px}
.cover-card{
  position:relative;display:flex;flex-direction:column;
  background:var(--surface);border:1px solid var(--line);
  border-radius:var(--r-card);overflow:hidden;box-shadow:var(--sh-1);
  transition:transform var(--ease),box-shadow var(--ease);
}
.cover-card:hover{transform:translateY(-2px);box-shadow:var(--sh-2)}
.cover-media{position:relative;aspect-ratio:16/9;overflow:hidden;background:var(--tint)}
.cover-media.ratio-43{aspect-ratio:4/3}
.cover-media img{width:100%;height:100%;object-fit:cover;transition:transform var(--ease)}
.cover-card:hover .cover-media img{transform:scale(1.03)}
.cover-tag{
  position:absolute;left:14px;top:14px;z-index:2;
  padding:5px 12px;border-radius:var(--r-pill);
  background:rgba(12,55,87,.78);color:#fff;font-size:12.5px;font-weight:600;backdrop-filter:saturate(120%);
}
.cover-body{padding:22px;display:flex;flex-direction:column;gap:10px;flex:1}
.cover-body h3{font-size:20px;line-height:1.4;font-weight:600}
.cover-card:hover .cover-body h3{color:var(--primary)}
.cover-text{font-size:14.5px;line-height:1.75;color:var(--ink-2)}
.cover-meta{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-top:auto;padding-top:8px;font-size:13px;color:var(--ink-3)}
.cover-mini h3{font-size:17px}
.cover-mini .cover-body{padding:18px}
.cover-mini .cover-text{font-size:14px}

/* ---------- Catalog ---------- */
.catalog-wrap{display:grid;grid-template-columns:minmax(0,7fr) minmax(0,5fr);gap:32px;align-items:start}
.catalog-list{background:var(--surface);border:1px solid var(--line);border-radius:var(--r-card);box-shadow:var(--sh-1);overflow:hidden}
.catalog-row{
  display:flex;align-items:center;gap:16px;
  padding:20px 22px;border-bottom:1px solid var(--line);
  transition:background var(--ease);
}
.catalog-row:last-child{border-bottom:none}
.catalog-row:hover{background:var(--primary-soft)}
.catalog-num{
  flex:none;width:38px;font-size:18px;font-weight:800;letter-spacing:-.5px;
  color:var(--accent);line-height:1.2;
}
.catalog-body{flex:1;min-width:0}
.catalog-name{font-size:16.5px;font-weight:600;color:var(--ink);line-height:1.5}
.catalog-row:hover .catalog-name{color:var(--primary)}
.catalog-sum{margin-top:5px;font-size:14px;line-height:1.7;color:var(--ink-2)}
.catalog-count{flex:none;font-size:13px;color:var(--ink-3);white-space:nowrap}
.catalog-arrow{flex:none;color:var(--primary);font-size:14px;transition:transform var(--ease)}
.catalog-row:hover .catalog-arrow{transform:translateX(4px)}
.aside-card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-card);
  overflow:hidden;box-shadow:var(--sh-1);position:sticky;top:96px;
}
.aside-card .cover-media{aspect-ratio:4/3}
.aside-body{padding:22px;display:flex;flex-direction:column;gap:12px}
.aside-body h3{font-size:18px;line-height:1.45}
.aside-body p{font-size:14.5px;line-height:1.75;color:var(--ink-2)}
.aside-points{display:flex;flex-direction:column;gap:8px;margin-top:2px}
.aside-points li{display:flex;gap:9px;align-items:flex-start;font-size:14px;color:var(--ink-2)}
.aside-points i{color:var(--success);font-size:13px;margin-top:6px}
.aside-body .btn-x{margin-top:6px;width:100%}

/* ---------- Stats ---------- */
.stat-strip{
  display:grid;grid-template-columns:repeat(4,1fr);gap:1px;
  background:var(--line);border:1px solid var(--line);
  border-radius:var(--r-card);overflow:hidden;
}
.stat-item{background:var(--surface);padding:26px 18px;text-align:center}
.stat-num{font-size:28px;font-weight:800;color:var(--primary);line-height:1.2;letter-spacing:-.5px}
.stat-num small{font-size:15px;font-weight:600;margin-left:2px}
.stat-label{margin-top:6px;font-size:13.5px;color:var(--ink-3)}

/* ---------- Entries ---------- */
.entry-list{border-top:1px solid var(--line)}
.entry-item{
  display:grid;grid-template-columns:1fr 1fr;gap:36px;align-items:center;
  padding:34px 0;border-bottom:1px solid var(--line);
}
.entry-item.reverse .entry-media{order:2}
.entry-media{border-radius:var(--r-img);overflow:hidden;aspect-ratio:16/9;background:var(--tint);box-shadow:var(--sh-1)}
.entry-media img{width:100%;height:100%;object-fit:cover;transition:transform var(--ease)}
.entry-item:hover .entry-media img{transform:scale(1.02)}
.entry-body{display:flex;flex-direction:column;gap:12px}
.entry-title{font-size:21px;line-height:1.45;font-weight:600}
.entry-item:hover .entry-title{color:var(--primary)}
.entry-text{font-size:15px;line-height:1.8;color:var(--ink-2)}
.entry-foot{display:flex;flex-wrap:wrap;align-items:center;gap:14px;margin-top:2px;font-size:13px;color:var(--ink-3)}
.entry-foot span{display:inline-flex;align-items:center;gap:6px}

/* ---------- Steps ---------- */
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.step-item{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-card);
  padding:26px 22px;box-shadow:var(--sh-1);
  transition:transform var(--ease),box-shadow var(--ease);
}
.step-item:hover{transform:translateY(-2px);box-shadow:var(--sh-2)}
.step-num{font-size:34px;font-weight:800;line-height:1;color:var(--accent);letter-spacing:-1px}
.step-item h3{margin-top:14px;font-size:17.5px;font-weight:600;line-height:1.5}
.step-item p{margin-top:8px;font-size:14.5px;line-height:1.75;color:var(--ink-2)}

/* ---------- FAQ ---------- */
.faq-wrap{max-width:920px}
.accordion-item{border:none;border-bottom:1px solid var(--line);background:transparent}
.accordion-item:first-of-type{border-top:1px solid var(--line)}
.accordion-button{
  display:flex;align-items:center;gap:14px;
  padding:20px 4px;font-size:17px;font-weight:600;color:var(--ink);
  background:transparent;box-shadow:none;border-radius:0;
}
.accordion-button::before{
  content:"";flex:none;width:3px;height:18px;border-radius:2px;background:var(--primary);
  transition:background var(--ease);
}
.accordion-button:not(.collapsed){color:var(--primary);background:transparent;box-shadow:none}
.accordion-button:not(.collapsed)::before{background:var(--accent)}
.accordion-button:focus{box-shadow:none;outline:2px solid var(--primary);outline-offset:-2px}
.accordion-button::after{
  margin-left:auto;background-size:14px;width:14px;height:14px;
  transition:transform var(--ease);
}
.accordion-body{
  padding:0 40px 22px 21px;font-size:15.5px;line-height:1.85;color:var(--ink-2);
}

/* ---------- CTA band ---------- */
.cta-band{
  display:flex;align-items:center;justify-content:space-between;gap:28px;flex-wrap:wrap;
  padding:38px 40px;border-radius:var(--r-card);color:#fff;
  background:linear-gradient(135deg,#17568C 0%,#0C3757 100%);
  box-shadow:var(--sh-2);
}
.cta-band h2{color:#fff;font-size:clamp(21px,2.4vw,26px);line-height:1.4;letter-spacing:-.4px}
.cta-band p{margin-top:10px;font-size:15px;line-height:1.8;color:rgba(255,255,255,.86);max-width:560px}
.cta-actions{display:flex;flex-wrap:wrap;align-items:center;gap:14px}
.cta-actions .btn-ghost{background:transparent;border-color:rgba(255,255,255,.6);color:#fff}
.cta-actions .btn-ghost:hover{background:rgba(255,255,255,.16);border-color:#fff;color:#fff}
.share-group{display:flex;gap:10px;margin-left:4px}
.share-btn{
  width:44px;height:44px;border-radius:12px;
  display:grid;place-items:center;font-size:16px;
  color:#fff;background:rgba(255,255,255,.12);
  border:1px solid rgba(255,255,255,.3);cursor:pointer;
  transition:background var(--ease),transform var(--ease),border-color var(--ease);
}
.share-btn:hover{background:rgba(255,255,255,.24);transform:translateY(-1px)}
.share-btn.is-copied{background:var(--accent);border-color:var(--accent)}
.back-link{margin-top:22px;font-size:14.5px;color:var(--ink-3)}
.back-link a{font-weight:600}

/* ---------- Footer ---------- */
.site-footer{background:var(--ink);color:#C4D2E0;padding:64px 0 0;margin-top:0}
.footer-grid{display:grid;grid-template-columns:1.7fr 1fr 1fr 1.3fr;gap:32px}
.footer-col{min-width:0}
.footer-col + .footer-col{border-left:1px solid rgba(255,255,255,.09);padding-left:28px}
.footer-brand{display:flex;align-items:center;gap:10px;color:#fff;font-size:18px;font-weight:700}
.footer-brand .brand-icon{background:linear-gradient(135deg,#2C74B3,#17568C)}
.footer-desc{margin-top:16px;font-size:14px;line-height:1.8;color:#9FB3C7}
.footer-col h3{color:#fff;font-size:16px;font-weight:600;margin-bottom:16px}
.footer-col ul li{margin-bottom:10px;font-size:14px;line-height:1.7}
.footer-col ul li a{color:#C4D2E0}
.footer-col ul li a:hover{color:#fff;text-decoration:underline;text-underline-offset:3px}
.footer-contact li{display:flex;align-items:flex-start;gap:9px;color:#9FB3C7}
.footer-contact i{margin-top:5px;color:#7FA3C6;font-size:13px}
.footer-btn{
  display:inline-flex;align-items:center;gap:8px;margin-top:16px;
  height:44px;padding:0 18px;border-radius:var(--r-btn);
  background:var(--accent);color:#fff;font-size:14px;font-weight:600;
  transition:background var(--ease),transform var(--ease),box-shadow var(--ease);
}
.footer-btn:hover{background:var(--accent-hover);color:#fff;transform:translateY(-1px);box-shadow:0 14px 26px -16px rgba(224,123,57,.9)}
.footer-bottom{
  margin-top:52px;padding:20px 0;border-top:1px solid rgba(255,255,255,.1);
  display:flex;flex-wrap:wrap;justify-content:space-between;gap:10px;
  font-size:13px;color:#8EA3B8;
}

/* ---------- Mobile drawer ---------- */
.menu-toggle{
  display:none;width:42px;height:42px;border-radius:10px;
  border:1px solid var(--line);background:var(--surface);color:var(--ink);
  font-size:16px;cursor:pointer;align-items:center;justify-content:center;
}
.menu-toggle:hover{background:var(--tint)}
.drawer{position:fixed;inset:0;z-index:1050;visibility:hidden;opacity:0;transition:opacity .24s ease}
.drawer.open{visibility:visible;opacity:1}
.drawer-mask{position:absolute;inset:0;background:rgba(16,36,58,.5)}
.drawer-panel{
  position:absolute;top:0;right:0;bottom:0;width:min(340px,86vw);
  background:var(--surface);padding:22px;overflow-y:auto;
  transform:translateX(100%);transition:transform .28s ease-out;
  display:flex;flex-direction:column;gap:20px;
}
.drawer.open .drawer-panel{transform:none}
.drawer-head{display:flex;align-items:center;justify-content:space-between;gap:12px}
.drawer-close{width:38px;height:38px;border-radius:10px;border:1px solid var(--line);background:var(--surface);color:var(--ink);cursor:pointer}
.drawer-nav{display:flex;flex-direction:column;gap:4px}
.drawer-nav a{
  padding:12px 14px;border-radius:10px;font-size:15.5px;color:var(--ink-2);
  transition:background var(--ease),color var(--ease);
}
.drawer-nav a:hover{background:var(--tint);color:var(--primary)}
.drawer-nav a.active{background:var(--primary-soft);color:var(--primary);font-weight:600}
.drawer .search-input{width:100%}
.drawer .btn-x{width:100%}
body.no-scroll{overflow:hidden}

@media(max-width:1199.98px){
  .main-nav{gap:0}
  .nav-link{padding:8px 10px;font-size:14.5px}
  .search-input{width:172px}
}
@media(max-width:991.98px){
  .section{padding:64px 0}
  .main-nav,.header-tools .search-box,.header-tools .btn-x{display:none}
  .menu-toggle{display:inline-flex}
  .page-hero{padding:48px 0 52px;min-height:300px}
  .cover-grid{grid-template-columns:1fr}
  .catalog-wrap{grid-template-columns:1fr}
  .aside-card{position:static}
  .steps{grid-template-columns:repeat(2,1fr)}
  .stat-strip{grid-template-columns:repeat(2,1fr)}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px}
  .footer-col + .footer-col{border-left:none;padding-left:0}
  .cta-band{padding:32px 28px}
}
@media(max-width:767.98px){
  .entry-item{grid-template-columns:1fr;gap:20px;padding:26px 0}
  .entry-item.reverse .entry-media{order:0}
  .cover-body{padding:18px}
  .cover-body h3{font-size:18px}
  .cta-band{flex-direction:column;align-items:flex-start}
  .footer-grid{grid-template-columns:1fr}
  .footer-bottom{flex-direction:column;gap:8px}
}
@media(max-width:575.98px){
  .section{padding:48px 0}
  .stat-strip{grid-template-columns:1fr}
  .steps{grid-template-columns:1fr}
  .catalog-row{padding:16px 16px;gap:12px}
  .catalog-count{display:none}
  .catalog-num{width:30px;font-size:16px}
  .hero-actions .btn-x{width:100%}
  .search-input{width:100%}
}

/* roulang page: category2 */
:root{
  --primary:#17568C;
  --primary-hover:#10456F;
  --primary-press:#0C3757;
  --primary-soft:#E7EFF7;
  --accent:#E07B39;
  --accent-hover:#C96A2C;
  --ink:#10243A;
  --ink-2:#445C74;
  --ink-3:#7C8FA3;
  --bg:#F6F8FB;
  --surface:#FFFFFF;
  --line:#E2E9F1;
  --tint:#F0F4F9;
  --ok:#2E8B62;
  --warn:#C9862B;
  --err:#C4453C;
  --r-card:16px;
  --r-img:12px;
  --r-btn:10px;
  --r-pill:999px;
  --sh-1:0 1px 2px rgba(16,36,58,.06),0 10px 26px -18px rgba(16,36,58,.30);
  --sh-2:0 2px 4px rgba(16,36,58,.08),0 18px 38px -20px rgba(16,36,58,.42);
  --ease:240ms cubic-bezier(.2,.7,.3,1);
  --header-h:72px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:"PingFang SC","Microsoft YaHei","Hiragino Sans GB","Noto Sans SC",-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,sans-serif;
  font-size:16.5px;
  line-height:1.8;
  color:var(--ink-2);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;height:auto;display:block}
a{color:var(--primary);text-decoration:none;transition:color var(--ease)}
a:hover{color:var(--primary-hover)}
h1,h2,h3,h4{margin:0;color:var(--ink);font-weight:700;letter-spacing:-.3px}
p{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
button{font-family:inherit}
:focus-visible{outline:2px solid var(--primary);outline-offset:2px}
.container-x{width:100%;max-width:1200px;margin:0 auto;padding:0 16px}
@media (min-width:768px){.container-x{padding:0 24px}}
@media (min-width:1200px){.container-x{padding:0 32px}}
@media (min-width:1400px){.container-x{max-width:1280px}}

/* ============ header ============ */
.site-header{
  position:sticky;top:0;z-index:1030;
  background:rgba(255,255,255,.96);
  backdrop-filter:blur(8px);
  border-bottom:1px solid var(--line);
  box-shadow:0 1px 2px rgba(16,36,58,.05);
  transition:height var(--ease);
}
.header-inner{
  display:flex;align-items:center;gap:20px;
  height:var(--header-h);transition:height var(--ease);
}
.site-header.is-scrolled .header-inner{height:60px}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto;color:var(--ink)}
.brand:hover{color:var(--ink)}
.brand-icon{
  width:36px;height:36px;border-radius:11px;flex:0 0 36px;
  display:inline-flex;align-items:center;justify-content:center;
  background:linear-gradient(150deg,var(--primary),#2B76B4);
  color:#fff;font-size:16px;box-shadow:0 6px 16px -8px rgba(23,86,140,.85);
}
.brand-text{font-size:19px;font-weight:700;letter-spacing:-.2px;color:var(--ink);white-space:nowrap}
.main-nav{display:none;align-items:center;gap:26px;margin-left:8px}
.main-nav .nav-link{
  position:relative;padding:6px 0;font-size:15px;color:var(--ink-2);white-space:nowrap;
}
.main-nav .nav-link:hover{color:var(--primary)}
.main-nav .nav-link.active{color:var(--primary);font-weight:600}
.main-nav .nav-link.active::after{
  content:"";position:absolute;left:0;right:0;bottom:-2px;height:2px;
  background:var(--primary);border-radius:2px;
}
.header-tools{display:flex;align-items:center;gap:12px;margin-left:auto}
.search-box{
  display:none;align-items:center;gap:8px;height:40px;width:200px;
  padding:0 14px;background:var(--surface);border:1px solid var(--line);
  border-radius:var(--r-pill);transition:border-color var(--ease),box-shadow var(--ease);
}
.search-box i{color:var(--ink-3);font-size:13px}
.search-box input{
  border:0;outline:0;background:transparent;width:100%;height:100%;
  font-size:14px;color:var(--ink);
}
.search-box input::placeholder{color:var(--ink-3)}
.search-box:focus-within{border-color:var(--primary);box-shadow:0 0 0 3px rgba(23,86,140,.12)}
.btn-accent{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:44px;padding:0 24px;border:1px solid transparent;border-radius:var(--r-btn);
  background:var(--accent);color:#fff;font-size:15px;font-weight:600;
  transition:transform var(--ease),box-shadow var(--ease),background var(--ease);
  box-shadow:0 8px 20px -12px rgba(224,123,57,.9);cursor:pointer;
}
.btn-accent:hover{background:var(--accent-hover);color:#fff;transform:translateY(-1px);box-shadow:var(--sh-2)}
.btn-accent:active{transform:translateY(0)}
.header-cta{height:40px;padding:0 18px;font-size:14px;display:none}
.menu-toggle{
  width:42px;height:42px;border-radius:12px;border:1px solid var(--line);
  background:var(--surface);color:var(--ink);display:inline-flex;
  align-items:center;justify-content:center;font-size:16px;cursor:pointer;
  transition:background var(--ease),border-color var(--ease);
}
.menu-toggle:hover{background:var(--primary-soft);border-color:#CFDDEB}
.mobile-drawer{
  display:none;flex-direction:column;gap:16px;
  padding:16px;border-top:1px solid var(--line);background:var(--surface);
}
.mobile-drawer.open{display:flex}
.mobile-drawer .nav-link{
  display:block;padding:12px 4px;font-size:16px;color:var(--ink-2);
  border-bottom:1px solid var(--line);
}
.mobile-drawer .nav-link.active{color:var(--primary);font-weight:600}
.mobile-drawer .search-box{display:flex;width:100%}
.mobile-drawer .btn-accent{width:100%}
@media (min-width:992px){
  .main-nav{display:flex}
  .menu-toggle{display:none}
  .header-cta{display:inline-flex}
}
@media (min-width:1200px){
  .search-box{display:flex}
}

/* ============ page hero ============ */
.page-hero{
  position:relative;color:#fff;
  background-image:linear-gradient(115deg,rgba(16,36,58,.78),rgba(23,86,140,.62)),url('/assets/images/backpic/back-2.webp');
  background-size:cover;background-position:center;
  padding:56px 0 52px;
}
.page-hero .container-x{position:relative;z-index:2}
.crumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13.5px;color:rgba(255,255,255,.8);margin-bottom:18px}
.crumb a{color:rgba(255,255,255,.8)}
.crumb a:hover{color:#fff;text-decoration:underline}
.crumb .sep{opacity:.6}
.crumb .current{color:#fff}
.page-hero h1{
  color:#fff;font-size:clamp(28px,4vw,42px);line-height:1.28;font-weight:700;
  letter-spacing:-.5px;max-width:820px;
}
.page-hero .hero-sub{
  margin-top:16px;max-width:700px;font-size:16px;line-height:1.85;color:rgba(255,255,255,.88);
}
.hero-tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:24px}
.hero-tags span{
  display:inline-flex;align-items:center;gap:6px;
  padding:6px 14px;border-radius:var(--r-pill);
  background:rgba(255,255,255,.14);border:1px solid rgba(255,255,255,.28);
  font-size:13px;color:#fff;
}
@media (min-width:768px){
  .page-hero{padding:76px 0 68px;min-height:320px;display:flex;align-items:center}
}

/* ============ sections ============ */
.section{padding:48px 0}
.section.tint-bg{background:var(--tint);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.section-head{max-width:760px;margin-bottom:28px}
.eyebrow{
  display:inline-block;padding:5px 12px;border-radius:var(--r-pill);
  background:var(--primary-soft);color:var(--primary);font-size:13px;font-weight:600;
  letter-spacing:.4px;margin-bottom:14px;
}
.section-head h2{font-size:clamp(22px,2.6vw,30px);line-height:1.35}
.section-sub{margin-top:12px;font-size:16px;color:var(--ink-2)}
@media (min-width:768px){.section{padding:64px 0}}
@media (min-width:992px){.section{padding:88px 0}}

/* stat strip */
.stat-strip{
  display:grid;grid-template-columns:repeat(2,1fr);gap:1px;
  background:var(--line);border:1px solid var(--line);border-radius:var(--r-card);
  overflow:hidden;box-shadow:var(--sh-1);margin-top:-38px;position:relative;z-index:3;
}
.stat-item{background:var(--surface);padding:22px 20px;text-align:center}
.stat-num{font-size:clamp(24px,3vw,32px);font-weight:700;color:var(--primary);line-height:1.2}
.stat-num em{font-style:normal;color:var(--accent);font-size:.6em;margin-left:2px}
.stat-label{margin-top:6px;font-size:13.5px;color:var(--ink-3)}
@media (min-width:768px){.stat-strip{grid-template-columns:repeat(4,1fr);margin-top:-46px}}
@media (min-width:992px){.stat-item{padding:26px 24px}}

/* timeline */
.timeline{margin-top:8px}
.tl-item{
  display:grid;grid-template-columns:1fr;gap:16px;
  padding:28px 0;border-bottom:1px solid var(--line);
}
.tl-item:last-child{border-bottom:0}
.tl-num{
  font-size:36px;font-weight:700;line-height:1;color:var(--accent);
  letter-spacing:-1px;font-variant-numeric:tabular-nums;
}
.tl-media img{
  width:100%;aspect-ratio:16/9;object-fit:cover;border-radius:var(--r-img);
  border:1px solid var(--line);
}
.tl-body h3{font-size:19px;margin-bottom:10px;line-height:1.5}
.tl-body p{font-size:15.5px;color:var(--ink-2)}
.dot-list{margin-top:14px;display:flex;flex-direction:column;gap:8px}
.dot-list li{position:relative;padding-left:20px;font-size:14.5px;color:var(--ink-2)}
.dot-list li::before{
  content:"";position:absolute;left:0;top:11px;width:8px;height:8px;border-radius:50%;
  background:var(--primary-soft);border:2px solid var(--primary);
}
.tag-row{display:flex;flex-wrap:wrap;gap:8px;margin-top:16px}
.tag-x{
  display:inline-flex;align-items:center;padding:4px 12px;border-radius:var(--r-pill);
  background:var(--tint);border:1px solid var(--line);color:var(--ink-2);font-size:13px;
}
@media (min-width:768px){
  .tl-item{grid-template-columns:76px 1fr;gap:20px 24px;padding:34px 0}
  .tl-num{font-size:44px}
  .tl-media{grid-column:2}
  .tl-body{grid-column:2}
}
@media (min-width:992px){
  .tl-item{grid-template-columns:88px 268px 1fr;align-items:start;gap:32px;padding:38px 0}
  .tl-num{font-size:48px;grid-row:1}
  .tl-media{grid-column:2}
  .tl-body{grid-column:3}
}

/* split rows */
.split-row{
  display:grid;grid-template-columns:1fr;gap:24px;align-items:center;
  padding:28px 0;border-bottom:1px solid var(--line);
}
.split-row:last-of-type{border-bottom:0}
.split-media img{
  width:100%;aspect-ratio:4/3;object-fit:cover;border-radius:var(--r-card);
  border:1px solid var(--line);box-shadow:var(--sh-1);
}
.split-text h3{font-size:20px;margin-bottom:12px}
.split-text p{font-size:15.5px}
.point-list{margin-top:16px;display:flex;flex-direction:column;gap:10px}
.point-list li{
  display:flex;gap:10px;font-size:15px;color:var(--ink-2);
  background:var(--surface);border:1px solid var(--line);border-radius:12px;padding:12px 14px;
}
.point-list i{color:var(--primary);font-size:14px;margin-top:5px}
@media (min-width:992px){
  .split-row{grid-template-columns:1fr 1fr;gap:48px;padding:36px 0}
  .split-row.reverse .split-media{order:2}
  .split-row.reverse .split-text{order:1}
}

/* scene cards */
.scene-grid{display:grid;grid-template-columns:1fr;gap:18px}
.scene-card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-card);
  padding:26px 24px;box-shadow:var(--sh-1);
  transition:transform var(--ease),box-shadow var(--ease),border-color var(--ease);
}
.scene-card:hover{transform:translateY(-2px);box-shadow:var(--sh-2);border-color:#CFDDEB}
.scene-icon{
  width:46px;height:46px;border-radius:14px;display:inline-flex;align-items:center;justify-content:center;
  background:var(--primary-soft);color:var(--primary);font-size:18px;margin-bottom:16px;
}
.scene-card h3{font-size:18px;margin-bottom:10px}
.scene-card p{font-size:15px}
.scene-meta{margin-top:16px;font-size:13.5px;color:var(--ink-3);display:flex;align-items:center;gap:8px}
@media (min-width:768px){.scene-grid{grid-template-columns:repeat(3,1fr);gap:22px}}

/* faq */
.faq-x{margin-top:8px}
.faq-x .accordion-item{border:0;border-bottom:1px solid var(--line);background:transparent;border-radius:0}
.faq-x .accordion-item:first-child{border-top:1px solid var(--line)}
.faq-x .accordion-button{
  background:transparent;color:var(--ink);font-size:17px;font-weight:600;
  padding:20px 18px 20px 20px;border-left:3px solid var(--primary);
  border-radius:0;box-shadow:none;
}
.faq-x .accordion-button:not(.collapsed){background:var(--tint);color:var(--primary)}
.faq-x .accordion-button:focus{box-shadow:none;border-color:var(--primary)}
.faq-x .accordion-button::after{transition:transform var(--ease);opacity:.7}
.faq-x .accordion-body{
  background:var(--tint);color:var(--ink-2);font-size:15.5px;line-height:1.85;
  padding:18px 20px 24px;border-left:3px solid var(--primary-soft);
}

/* cta band */
.cta-band{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-card);
  box-shadow:var(--sh-1);padding:30px 24px;
  display:grid;grid-template-columns:1fr;gap:24px;align-items:center;
}
.cta-copy h2{font-size:clamp(20px,2.4vw,26px);margin-bottom:10px}
.cta-copy p{font-size:15.5px}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:20px}
.btn-ghost{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:44px;padding:0 24px;border-radius:var(--r-btn);
  background:var(--surface);border:1px solid var(--primary);color:var(--primary);
  font-size:15px;font-weight:600;cursor:pointer;
  transition:background var(--ease),color var(--ease),transform var(--ease);
}
.btn-ghost:hover{background:var(--primary-soft);color:var(--primary-hover);transform:translateY(-1px)}
.cta-side{display:flex;flex-direction:column;gap:12px}
.share-group{display:flex;flex-wrap:wrap;gap:10px}
.icon-btn{
  display:inline-flex;align-items:center;gap:8px;height:42px;padding:0 16px;
  border-radius:var(--r-btn);border:1px solid var(--line);background:var(--surface);
  color:var(--ink-2);font-size:14px;cursor:pointer;
  transition:background var(--ease),color var(--ease),border-color var(--ease),transform var(--ease);
}
.icon-btn:hover{background:var(--primary-soft);color:var(--primary);border-color:#CFDDEB;transform:translateY(-1px)}
.icon-btn.is-on{background:var(--primary);border-color:var(--primary);color:#fff}
@media (min-width:992px){
  .cta-band{grid-template-columns:1.4fr .9fr;padding:38px 40px;gap:32px}
  .cta-side{align-items:flex-end}
}

/* footer */
.site-footer{background:var(--ink);color:rgba(255,255,255,.72);margin-top:8px;padding:56px 0 24px}
.footer-grid{display:grid;grid-template-columns:1fr;gap:32px}
.footer-brand{display:flex;align-items:center;gap:10px;color:#fff;font-size:18px;font-weight:700;margin-bottom:14px}
.footer-brand .brand-icon{width:34px;height:34px;flex:0 0 34px;border-radius:10px;background:linear-gradient(150deg,#2B76B4,var(--primary))}
.footer-desc{font-size:14.5px;line-height:1.85;color:rgba(255,255,255,.62);max-width:420px}
.footer-col h3{color:#fff;font-size:15.5px;margin-bottom:16px;font-weight:600}
.footer-col ul{display:flex;flex-direction:column;gap:11px}
.footer-col ul a{color:rgba(255,255,255,.68);font-size:14.5px}
.footer-col ul a:hover{color:#fff;text-decoration:underline}
.footer-contact li{display:flex;align-items:center;gap:9px;font-size:14.5px;color:rgba(255,255,255,.68)}
.footer-contact i{color:var(--accent);font-size:14px}
.footer-btn{
  display:inline-flex;align-items:center;gap:8px;margin-top:18px;height:42px;padding:0 20px;
  border-radius:var(--r-btn);background:var(--accent);color:#fff;font-size:14.5px;font-weight:600;
  transition:background var(--ease),transform var(--ease);
}
.footer-btn:hover{background:var(--accent-hover);color:#fff;transform:translateY(-1px)}
.footer-bottom{
  margin-top:40px;padding-top:20px;border-top:1px solid rgba(255,255,255,.12);
  display:flex;flex-direction:column;gap:8px;font-size:13.5px;color:rgba(255,255,255,.5);
}
@media (min-width:768px){
  .footer-grid{grid-template-columns:1.4fr 1fr 1fr;gap:36px}
  .footer-bottom{flex-direction:row;justify-content:space-between;align-items:center}
}
@media (min-width:992px){
  .footer-grid{grid-template-columns:1.5fr 1fr 1fr 1.2fr}
  .footer-col{padding-left:28px;border-left:1px solid rgba(255,255,255,.12)}
  .footer-col:first-child{padding-left:0;border-left:0}
  .site-footer{padding:64px 0 28px}
}
@media (max-width:767px){
  .footer-col{border-left:0;padding-left:0}
}

.back-home{margin-top:6px}
.back-home a{display:inline-flex;align-items:center;gap:8px;font-size:15px;font-weight:600}
.back-home a:hover i{transform:translateX(4px)}
.back-home i{transition:transform var(--ease);font-size:13px}

/* roulang page: category3 */
:root{
  --primary:#17568C;
  --primary-hover:#10456F;
  --primary-press:#0C3757;
  --primary-soft:#E7EFF7;
  --accent:#E07B39;
  --accent-hover:#C96B2C;
  --success:#2E8B62;
  --warn:#C9862B;
  --danger:#C4453C;
  --ink:#10243A;
  --ink-2:#445C74;
  --ink-3:#7C8FA3;
  --bg:#F6F8FB;
  --surface:#FFFFFF;
  --line:#E2E9F1;
  --tint:#F0F4F9;
  --r-card:16px;
  --r-img:12px;
  --r-btn:10px;
  --r-pill:999px;
  --shadow-1:0 1px 2px rgba(16,36,58,.06),0 10px 26px -18px rgba(16,36,58,.30);
  --shadow-2:0 2px 4px rgba(16,36,58,.08),0 18px 38px -20px rgba(16,36,58,.42);
  --ease:240ms cubic-bezier(.25,.6,.35,1);
  --container:1200px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
  font-size:16.5px;
  line-height:1.8;
  color:var(--ink-2);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{color:var(--primary);text-decoration:none;transition:color var(--ease)}
a:hover{color:var(--primary-hover)}
button{font-family:inherit}
h1,h2,h3,h4{color:var(--ink);margin:0;font-weight:700;letter-spacing:-.3px}
h1{font-size:clamp(28px,4vw,44px);line-height:1.28;letter-spacing:-.5px}
h2{font-size:clamp(23px,2.4vw,31px);line-height:1.35}
h3{font-size:19px;line-height:1.5;font-weight:600}
p{margin:0}
ul{margin:0;padding:0;list-style:none}
:focus-visible{outline:2px solid var(--primary);outline-offset:2px}

.container-x{
  width:100%;
  max-width:var(--container);
  margin:0 auto;
  padding:0 32px;
}
@media (min-width:1400px){
  .container-x{max-width:1280px}
}
@media (max-width:991px){
  .container-x{padding:0 24px}
}
@media (max-width:575px){
  .container-x{padding:0 16px}
}

/* ---------- 顶部导航 ---------- */
.site-header{
  position:sticky;
  top:0;
  z-index:1030;
  background:#fff;
  border-bottom:1px solid var(--line);
  box-shadow:0 1px 2px rgba(16,36,58,.06);
}
.header-inner{
  display:flex;
  align-items:center;
  gap:24px;
  height:72px;
  transition:height var(--ease);
}
.site-header.is-stuck .header-inner{height:60px}
.brand{
  display:flex;
  align-items:center;
  gap:10px;
  font-size:19px;
  font-weight:700;
  color:var(--ink);
  white-space:nowrap;
  flex-shrink:0;
}
.brand:hover{color:var(--primary)}
.brand-icon{
  width:38px;
  height:38px;
  border-radius:12px;
  background:linear-gradient(135deg,#17568C,#2A7CB8);
  color:#fff;
  display:grid;
  place-items:center;
  font-size:16px;
  box-shadow:0 6px 14px -8px rgba(23,86,140,.9);
}
.main-nav{display:flex;align-items:center;gap:4px;margin-left:6px}
.nav-link{
  position:relative;
  display:inline-block;
  padding:9px 13px;
  font-size:15.5px;
  color:var(--ink-2);
  border-radius:8px;
  transition:color var(--ease),background var(--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;
  left:13px;
  right:13px;
  bottom:2px;
  height:2px;
  border-radius:2px;
  background:var(--primary);
}
.header-right{margin-left:auto;display:flex;align-items:center;gap:14px}
.search-box{position:relative}
.search-box .fa-magnifying-glass{
  position:absolute;
  left:14px;
  top:50%;
  transform:translateY(-50%);
  font-size:13px;
  color:var(--ink-3);
  pointer-events:none;
}
.search-box input{
  width:200px;
  height:42px;
  padding:0 16px 0 36px;
  border:1px solid var(--line);
  border-radius:var(--r-pill);
  background:var(--tint);
  color:var(--ink);
  font-size:14px;
  outline:none;
  transition:border-color var(--ease),background var(--ease),box-shadow var(--ease);
}
.search-box input::placeholder{color:var(--ink-3)}
.search-box input:focus{
  border-color:var(--primary);
  background:#fff;
  box-shadow:0 0 0 3px rgba(23,86,140,.12);
}
.btn-main{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  height:46px;
  padding:0 26px;
  border:0;
  border-radius:var(--r-btn);
  background:var(--accent);
  color:#fff;
  font-size:15px;
  font-weight:600;
  white-space:nowrap;
  cursor:pointer;
  box-shadow:var(--shadow-1);
  transition:background var(--ease),transform var(--ease),box-shadow var(--ease);
}
.btn-main:hover{background:var(--accent-hover);color:#fff;transform:translateY(-1px);box-shadow:var(--shadow-2)}
.btn-main:active{background:#B85F26;transform:translateY(0)}
.btn-ghost{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  height:46px;
  padding:0 24px;
  border:1px solid var(--primary);
  border-radius:var(--r-btn);
  background:#fff;
  color:var(--primary);
  font-size:15px;
  font-weight:600;
  white-space:nowrap;
  cursor:pointer;
  transition:background var(--ease),color var(--ease),transform var(--ease);
}
.btn-ghost:hover{background:var(--primary-soft);color:var(--primary-hover);transform:translateY(-1px)}
.btn-ghost:active{background:#D6E4F1;transform:translateY(0)}
.btn-sm{height:42px;padding:0 20px;font-size:14.5px}
.nav-toggle{
  display:none;
  width:42px;
  height:42px;
  align-items:center;
  justify-content:center;
  border:1px solid var(--line);
  border-radius:var(--r-btn);
  background:#fff;
  color:var(--ink);
  font-size:16px;
  cursor:pointer;
  transition:background var(--ease),border-color var(--ease);
}
.nav-toggle:hover{background:var(--primary-soft);border-color:#C3D8EA}
@media (max-width:1199px){
  .search-box input{width:160px}
  .main-nav{gap:0}
  .nav-link{padding:9px 10px;font-size:15px}
}
@media (max-width:991px){
  .main-nav,.header-right .search-box,.header-right .btn-main{display:none}
  .nav-toggle{display:inline-flex}
  .header-right{gap:10px}
}
@media (max-width:575px){
  .brand{font-size:17px}
  .brand-icon{width:34px;height:34px;border-radius:10px;font-size:15px}
  .header-inner{height:64px}
}

/* ---------- 移动端抽屉 ---------- */
.drawer-mask{
  position:fixed;
  inset:0;
  background:rgba(16,36,58,.45);
  opacity:0;
  visibility:hidden;
  z-index:1050;
  transition:opacity var(--ease),visibility var(--ease);
}
.drawer-mask.is-open{opacity:1;visibility:visible}
.mobile-drawer{
  position:fixed;
  top:0;
  right:0;
  bottom:0;
  width:min(320px,86vw);
  background:#fff;
  z-index:1060;
  padding:22px 20px 32px;
  overflow-y:auto;
  transform:translateX(102%);
  transition:transform 280ms cubic-bezier(.25,.6,.35,1);
  box-shadow:-10px 0 34px -20px rgba(16,36,58,.55);
}
.mobile-drawer.is-open{transform:translateX(0)}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:20px}
.drawer-title{font-weight:700;color:var(--ink);font-size:16px}
.drawer-close{
  width:38px;height:38px;border:1px solid var(--line);border-radius:10px;background:#fff;
  color:var(--ink-2);cursor:pointer;display:grid;place-items:center;
}
.drawer-nav{display:flex;flex-direction:column;gap:4px;margin-bottom:22px}
.drawer-nav .nav-link{padding:12px 14px;border-radius:10px;font-size:16px}
.drawer-nav .nav-link.active{background:var(--primary-soft)}
.drawer-nav .nav-link.active::after{display:none}
.drawer-search{position:relative;margin-bottom:14px}
.drawer-search .fa-magnifying-glass{position:absolute;left:15px;top:50%;transform:translateY(-50%);color:var(--ink-3);font-size:14px}
.drawer-search input{
  width:100%;height:46px;padding:0 18px 0 40px;border:1px solid var(--line);
  border-radius:var(--r-pill);background:var(--tint);color:var(--ink);font-size:15px;outline:none;
}
.drawer-search input:focus{border-color:var(--primary);background:#fff;box-shadow:0 0 0 3px rgba(23,86,140,.12)}
.mobile-drawer .btn-main{width:100%}

/* ---------- 内页页头 ---------- */
.page-hero{
  position:relative;
  min-height:340px;
  display:flex;
  align-items:center;
  background-image:linear-gradient(120deg,rgba(16,36,58,.68),rgba(23,86,140,.58)),url(/assets/images/backpic/back-2.webp);
  background-size:cover;
  background-position:center;
}
.page-hero .container-x{padding-top:44px;padding-bottom:48px}
.crumbs{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:14px;color:rgba(255,255,255,.8);margin-bottom:18px}
.crumbs a{color:rgba(255,255,255,.8)}
.crumbs a:hover{color:#fff}
.crumbs .sep{opacity:.6}
.page-hero h1{color:#fff;max-width:820px}
.page-hero .hero-sub{
  margin-top:16px;
  max-width:720px;
  color:rgba(255,255,255,.88);
  font-size:16.5px;
  line-height:1.8;
}
.hero-meta{display:flex;flex-wrap:wrap;gap:10px;margin-top:24px}
.hero-meta span{
  display:inline-flex;
  align-items:center;
  gap:7px;
  padding:6px 14px;
  border-radius:var(--r-pill);
  background:rgba(255,255,255,.16);
  border:1px solid rgba(255,255,255,.28);
  color:#fff;
  font-size:13.5px;
}
@media (max-width:767px){
  .page-hero{min-height:300px}
  .page-hero .container-x{padding-top:32px;padding-bottom:36px}
}

/* ---------- 通用板块 ---------- */
.section{padding:88px 0}
.section-sm{padding:64px 0}
.section-tint{background:var(--tint)}
.section-surface{background:var(--surface)}
.section-head{margin-bottom:34px;max-width:820px}
.section-head h2{margin-bottom:12px}
.section-head p{color:var(--ink-2);font-size:16.5px}
.eyebrow{
  display:inline-flex;
  align-items:center;
  gap:8px;
  padding:5px 14px;
  border-radius:var(--r-pill);
  background:var(--primary-soft);
  color:var(--primary);
  font-size:13px;
  font-weight:600;
  letter-spacing:.3px;
  margin-bottom:16px;
}
.eyebrow i{font-size:12px}
@media (max-width:991px){
  .section{padding:64px 0}
  .section-sm{padding:48px 0}
}
@media (max-width:575px){
  .section{padding:48px 0}
  .section-sm{padding:40px 0}
  .section-head{margin-bottom:26px}
}

/* ---------- 标签筛选视觉 ---------- */
.filter-bar{
  display:flex;
  flex-wrap:wrap;
  gap:10px;
  padding:16px;
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--r-card);
  box-shadow:var(--shadow-1);
  margin-bottom:32px;
}
.filter-chip{
  padding:8px 18px;
  border-radius:var(--r-pill);
  border:1px solid var(--line);
  background:#fff;
  color:var(--ink-2);
  font-size:14px;
  cursor:pointer;
  transition:background var(--ease),color var(--ease),border-color var(--ease);
}
.filter-chip:hover{background:var(--primary-soft);color:var(--primary);border-color:#C3D8EA}
.filter-chip.is-active{
  background:var(--primary-soft);
  border-color:#C3D8EA;
  color:var(--primary);
  font-weight:600;
}
@media (max-width:575px){
  .filter-bar{padding:12px;gap:8px}
  .filter-chip{padding:7px 14px;font-size:13.5px}
}

/* ---------- 主题卡片网格 ---------- */
.card-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
@media (max-width:991px){
  .card-grid{grid-template-columns:repeat(2,1fr);gap:20px}
}
@media (max-width:575px){
  .card-grid{grid-template-columns:1fr}
}
.topic-card{
  display:flex;
  flex-direction:column;
  height:100%;
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  overflow:hidden;
  box-shadow:var(--shadow-1);
  transition:transform var(--ease),box-shadow var(--ease),border-color var(--ease);
}
.topic-card:hover{
  transform:translateY(-2px);
  box-shadow:var(--shadow-2);
  border-color:#CFDFEE;
}
.topic-card:hover h3{color:var(--primary)}
.thumb{
  position:relative;
  aspect-ratio:16/9;
  overflow:hidden;
  background:var(--tint);
}
.thumb img{
  width:100%;
  height:100%;
  object-fit:cover;
  transition:transform var(--ease);
}
.topic-card:hover .thumb img{transform:scale(1.03)}
.thumb .badge-soft{
  position:absolute;
  left:14px;
  top:14px;
}
.badge-soft{
  display:inline-flex;
  align-items:center;
  gap:6px;
  padding:4px 12px;
  border-radius:var(--r-pill);
  background:var(--primary-soft);
  color:var(--primary);
  font-size:12.5px;
  font-weight:600;
  line-height:1.6;
}
.badge-accent{background:#FBEDE2;color:#B85F26}
.topic-body{padding:20px 22px 22px;display:flex;flex-direction:column;flex:1}
.topic-body h3{margin-bottom:10px}
.topic-body p{font-size:15px;color:var(--ink-2);flex:1}
.card-foot{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:12px;
  margin-top:18px;
  padding-top:14px;
  border-top:1px solid var(--line);
  font-size:13.5px;
  color:var(--ink-3);
}
.card-foot .more{
  display:inline-flex;
  align-items:center;
  gap:6px;
  color:var(--primary);
  font-weight:600;
}
.card-foot .more i{transition:transform var(--ease)}
.topic-card:hover .card-foot .more i{transform:translateX(4px)}

/* ---------- 精选条目 ---------- */
.feature-grid{display:grid;grid-template-columns:1.6fr 1fr;gap:24px}
@media (max-width:991px){
  .feature-grid{grid-template-columns:1fr;gap:20px}
}
.feature-main{
  display:flex;
  flex-direction:column;
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  overflow:hidden;
  box-shadow:var(--shadow-1);
  transition:transform var(--ease),box-shadow var(--ease);
}
.feature-main:hover{transform:translateY(-2px);box-shadow:var(--shadow-2)}
.feature-main .thumb{aspect-ratio:16/9}
.feature-main .feature-body{padding:26px 28px 28px}
.feature-main h3{font-size:22px;margin-bottom:12px}
.feature-main p{font-size:15.5px}
.feature-side{display:grid;gap:24px;align-content:start}
@media (max-width:991px){
  .feature-side{grid-template-columns:repeat(2,1fr);gap:20px}
}
@media (max-width:575px){
  .feature-side{grid-template-columns:1fr}
}
.mini-card{
  display:flex;
  gap:16px;
  align-items:flex-start;
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  padding:16px;
  box-shadow:var(--shadow-1);
  transition:transform var(--ease),box-shadow var(--ease),border-color var(--ease);
}
.mini-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-2);border-color:#CFDFEE}
.mini-card:hover h3{color:var(--primary)}
.mini-thumb{
  flex:0 0 108px;
  aspect-ratio:4/3;
  border-radius:var(--r-img);
  overflow:hidden;
  background:var(--tint);
}
.mini-thumb img{width:100%;height:100%;object-fit:cover;transition:transform var(--ease)}
.mini-card:hover .mini-thumb img{transform:scale(1.03)}
.mini-body h3{font-size:16.5px;margin:8px 0 6px}
.mini-body p{font-size:14px;color:var(--ink-2)}
.mini-body .meta{font-size:13px;color:var(--ink-3);display:block;margin-top:8px}

/* ---------- 清单 ---------- */
.check-list{display:grid;gap:0;background:#fff;border:1px solid var(--line);border-radius:var(--r-card);overflow:hidden;box-shadow:var(--shadow-1)}
.check-row{
  display:grid;
  grid-template-columns:56px 1fr auto;
  gap:18px;
  align-items:center;
  padding:20px 24px;
  border-bottom:1px solid var(--line);
  transition:background var(--ease);
}
.check-row:last-child{border-bottom:0}
.check-row:hover{background:var(--primary-soft)}
.check-num{
  font-size:20px;
  font-weight:700;
  color:var(--accent);
  letter-spacing:-.5px;
}
.check-row h3{font-size:16.5px;margin-bottom:4px}
.check-row p{font-size:14.5px;color:var(--ink-2)}
.check-row .dot{color:var(--ink-3);font-size:13px;white-space:nowrap}
@media (max-width:767px){
  .check-row{grid-template-columns:40px 1fr;gap:12px;padding:16px 18px}
  .check-row .dot{grid-column:2;font-size:12.5px}
}

/* ---------- FAQ ---------- */
.faq-acc{
  border:1px solid var(--line);
  border-radius:var(--r-card);
  overflow:hidden;
  background:#fff;
  box-shadow:var(--shadow-1);
}
.faq-acc .accordion-item{border:0;border-bottom:1px solid var(--line);background:transparent}
.faq-acc .accordion-item:last-child{border-bottom:0}
.faq-acc .accordion-header{margin:0}
.faq-acc .accordion-button{
  background:#fff;
  color:var(--ink);
  font-size:17px;
  font-weight:600;
  padding:20px 22px;
  border-left:3px solid var(--primary);
  border-radius:0;
  box-shadow:none;
  transition:background var(--ease),color var(--ease);
}
.faq-acc .accordion-button:not(.collapsed){
  background:var(--tint);
  color:var(--primary);
}
.faq-acc .accordion-button:focus{
  box-shadow:none;
  border-color:var(--primary);
  outline:2px solid var(--primary);
  outline-offset:-2px;
}
.faq-acc .accordion-button::after{
  transition:transform var(--ease);
  background-size:1rem;
  width:1rem;height:1rem;
}
.faq-acc .accordion-button:not(.collapsed)::after{transform:rotate(180deg)}
.faq-acc .accordion-body{
  padding:18px 24px 22px 25px;
  background:var(--tint);
  color:var(--ink-2);
  font-size:15.5px;
  line-height:1.85;
}
@media (max-width:575px){
  .faq-acc .accordion-button{font-size:15.5px;padding:16px 16px 16px 16px}
  .faq-acc .accordion-body{padding:16px 18px 18px 19px;font-size:15px}
}

/* ---------- CTA 条 ---------- */
.cta-bar{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:32px;
  padding:38px 40px;
  border-radius:20px;
  background:linear-gradient(120deg,#17568C,#1E6BA8 70%,#2478B5);
  color:#fff;
  box-shadow:var(--shadow-2);
}
.cta-bar h2{color:#fff;font-size:clamp(21px,2.1vw,26px);margin-bottom:10px}
.cta-bar p{color:rgba(255,255,255,.86);font-size:15.5px;max-width:560px}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:22px}
.cta-bar .btn-main{background:var(--accent)}
.cta-bar .btn-main:hover{background:var(--accent-hover)}
.cta-bar .btn-outline-light-x{
  display:inline-flex;
  align-items:center;
  gap:8px;
  height:46px;
  padding:0 24px;
  border-radius:var(--r-btn);
  border:1px solid rgba(255,255,255,.65);
  background:transparent;
  color:#fff;
  font-size:15px;
  font-weight:600;
  transition:background var(--ease),border-color var(--ease);
}
.cta-bar .btn-outline-light-x:hover{background:rgba(255,255,255,.14);border-color:#fff;color:#fff}
.share-group{display:flex;align-items:center;gap:10px;flex-shrink:0}
.icon-btn{
  width:46px;
  height:46px;
  display:grid;
  place-items:center;
  border-radius:12px;
  border:1px solid rgba(255,255,255,.5);
  background:rgba(255,255,255,.12);
  color:#fff;
  font-size:16px;
  cursor:pointer;
  transition:background var(--ease),transform var(--ease),border-color var(--ease);
}
.icon-btn:hover{background:rgba(255,255,255,.24);transform:translateY(-2px)}
.icon-btn.is-on{background:var(--accent);border-color:var(--accent)}
@media (max-width:991px){
  .cta-bar{flex-direction:column;align-items:flex-start;padding:30px 26px;gap:24px}
  .share-group{align-self:flex-start}
}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--ink);color:#B9C7D6;padding:64px 0 0;margin-top:0}
.footer-grid{
  display:grid;
  grid-template-columns:1.5fr 1fr 1fr 1.2fr;
  gap:36px;
  padding-bottom:44px;
}
.footer-col{position:relative}
.footer-col + .footer-col{padding-left:36px}
.footer-col + .footer-col::before{
  content:"";
  position:absolute;
  left:0;
  top:6px;
  bottom:6px;
  width:1px;
  background:rgba(255,255,255,.1);
}
.footer-brand{
  display:flex;
  align-items:center;
  gap:10px;
  font-size:18px;
  font-weight:700;
  color:#fff;
  margin-bottom:16px;
}
.footer-brand .brand-icon{background:linear-gradient(135deg,#2A7CB8,#17568C)}
.footer-desc{font-size:14.5px;line-height:1.8;color:#9FB0C2}
.site-footer h3{
  font-size:15px;
  color:#fff;
  margin-bottom:16px;
  font-weight:600;
  letter-spacing:.2px;
}
.site-footer ul li{margin-bottom:10px}
.site-footer ul a{color:#B9C7D6;font-size:14.5px}
.site-footer ul a:hover{color:#fff}
.footer-contact li{
  display:flex;
  align-items:flex-start;
  gap:10px;
  font-size:14.5px;
  color:#B9C7D6;
}
.footer-contact i{margin-top:5px;color:#6E8AA6;font-size:14px}
.footer-btn{
  display:inline-flex;
  align-items:center;
  gap:8px;
  margin-top:16px;
  height:44px;
  padding:0 22px;
  border-radius:var(--r-btn);
  background:var(--accent);
  color:#fff;
  font-size:14.5px;
  font-weight:600;
  transition:background var(--ease),transform var(--ease);
}
.footer-btn:hover{background:var(--accent-hover);color:#fff;transform:translateY(-1px)}
.footer-bottom{
  display:flex;
  flex-wrap:wrap;
  gap:10px 24px;
  justify-content:space-between;
  padding:20px 0 26px;
  border-top:1px solid rgba(255,255,255,.1);
  font-size:13.5px;
  color:#8FA2B6;
}
@media (max-width:991px){
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px}
  .footer-col + .footer-col{padding-left:0}
  .footer-col + .footer-col::before{display:none}
}
@media (max-width:575px){
  .site-footer{padding-top:44px}
  .footer-grid{grid-template-columns:1fr;gap:26px;padding-bottom:32px}
  .footer-bottom{flex-direction:column;gap:8px}
}

/* roulang page: category4 */
:root{
  --primary:#17568C;
  --primary-hover:#10456F;
  --primary-active:#0C3757;
  --primary-soft:#E7EFF7;
  --accent:#E07B39;
  --accent-hover:#D06F2E;
  --ink:#10243A;
  --ink-2:#445C74;
  --ink-3:#7C8FA3;
  --bg:#F6F8FB;
  --surface:#FFFFFF;
  --line:#E2E9F1;
  --tint:#F0F4F9;
  --success:#2E8B62;
  --warn:#C9862B;
  --error:#C4453C;
  --r-card:16px;
  --r-img:12px;
  --r-btn:10px;
  --sh-1:0 1px 2px rgba(16,36,58,.06),0 10px 26px -18px rgba(16,36,58,.30);
  --sh-2:0 2px 4px rgba(16,36,58,.08),0 18px 38px -20px rgba(16,36,58,.42);
  --gutter:32px;
}
*{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body{
  margin:0;
  font-family:"PingFang SC","Microsoft YaHei","Hiragino Sans GB","Helvetica Neue",Arial,sans-serif;
  background:var(--bg);
  color:var(--ink-2);
  font-size:16px;
  line-height:1.8;
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4{margin:0;color:var(--ink);font-weight:700;letter-spacing:-.3px;}
h1{font-size:clamp(28px,4vw,44px);line-height:1.28;letter-spacing:-.5px;}
h2{font-size:clamp(22px,2.4vw,30px);line-height:1.35;}
h3{font-size:19px;font-weight:600;line-height:1.5;}
p{margin:0;}
a{color:var(--primary);text-decoration:none;transition:color .2s ease;}
a:hover{color:var(--primary-hover);}
img{max-width:100%;display:block;}
ul{margin:0;padding:0;list-style:none;}
button{font-family:inherit;}
:focus-visible{outline:2px solid var(--primary);outline-offset:2px;}

.container-x{
  width:100%;
  max-width:1200px;
  margin:0 auto;
  padding:0 32px;
}
@media (min-width:1400px){
  .container-x{max-width:1280px;}
}
@media (max-width:991px){
  .container-x{padding:0 24px;}
}
@media (max-width:575px){
  .container-x{padding:0 16px;}
}

/* ---------- Header ---------- */
.site-header{
  position:sticky;
  top:0;
  z-index:1030;
  background:#fff;
  border-bottom:1px solid var(--line);
  box-shadow:0 1px 2px rgba(16,36,58,.05);
}
.header-inner{
  display:flex;
  align-items:center;
  gap:20px;
  height:72px;
}
.brand{
  display:inline-flex;
  align-items:center;
  gap:10px;
  font-size:18px;
  font-weight:700;
  color:var(--ink);
  letter-spacing:-.4px;
  white-space:nowrap;
}
.brand:hover{color:var(--primary);}
.brand-icon{
  width:34px;
  height:34px;
  border-radius:10px;
  background:var(--primary);
  color:#fff;
  display:inline-flex;
  align-items:center;
  justify-content:center;
  font-size:15px;
  box-shadow:0 8px 18px -12px rgba(23,86,140,.9);
}
.main-nav{
  display:flex;
  align-items:center;
  gap:4px;
  flex:1 1 auto;
  margin-left:8px;
}
.nav-link{
  position:relative;
  display:inline-block;
  padding:8px 12px;
  font-size:15px;
  font-weight:500;
  color:var(--ink-2);
  border-radius:8px;
  transition:color .2s ease,background .2s ease;
  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:12px;
  right:12px;
  bottom:2px;
  height:2px;
  border-radius:2px;
  background:var(--primary);
}
.header-right{display:flex;align-items:center;gap:12px;margin-left:auto;}
.search-box{
  display:flex;
  align-items:center;
  gap:8px;
  height:40px;
  width:200px;
  padding:0 14px;
  border:1px solid var(--line);
  border-radius:999px;
  background:var(--tint);
  transition:border-color .2s ease,box-shadow .2s ease,background .2s ease;
}
.search-box i{color:var(--ink-3);font-size:13px;}
.search-box input{
  width:100%;
  border:0;
  outline:none;
  background:transparent;
  font-size:14px;
  color:var(--ink);
}
.search-box input::placeholder{color:var(--ink-3);}
.search-box:focus-within{
  background:#fff;
  border-color:var(--primary);
  box-shadow:0 0 0 3px rgba(23,86,140,.12);
}
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  height:46px;
  padding:0 24px;
  font-size:15px;
  font-weight:600;
  border-radius:var(--r-btn);
  border:1px solid transparent;
  cursor:pointer;
  transition:transform .2s ease,background .2s ease,box-shadow .2s ease,color .2s ease,border-color .2s ease;
}
.btn-primary{
  background:var(--accent);
  color:#fff;
  box-shadow:0 12px 24px -16px rgba(224,123,57,.95);
}
.btn-primary:hover{
  background:var(--accent-hover);
  color:#fff;
  transform:translateY(-1px);
  box-shadow:0 16px 30px -16px rgba(224,123,57,.95);
}
.btn-primary:active{background:#BE6326;transform:translateY(0);}
.btn-outline{
  background:#fff;
  border-color:var(--primary);
  color:var(--primary);
}
.btn-outline:hover{background:var(--primary-soft);color:var(--primary-hover);}
.btn-ghost{
  background:rgba(255,255,255,.12);
  border-color:rgba(255,255,255,.55);
  color:#fff;
}
.btn-ghost:hover{background:rgba(255,255,255,.22);color:#fff;}
.btn-sm{height:38px;padding:0 18px;font-size:14px;}
.btn-link{
  display:inline-flex;
  align-items:center;
  gap:8px;
  background:none;
  border:0;
  padding:0;
  font-size:15px;
  font-weight:600;
  color:var(--primary);
  cursor:pointer;
}
.btn-link i{transition:transform .22s ease;}
.btn-link:hover i{transform:translateX(4px);}
.header-cta{height:42px;padding:0 20px;font-size:14px;}

.nav-toggle{
  display:none;
  width:42px;
  height:42px;
  align-items:center;
  justify-content:center;
  border:1px solid var(--line);
  border-radius:10px;
  background:#fff;
  color:var(--ink);
  font-size:16px;
  cursor:pointer;
}
.mobile-drawer{
  display:none;
  border-top:1px solid var(--line);
  background:#fff;
  padding:16px 0 22px;
}
.mobile-drawer.open{display:block;}
.mobile-drawer .drawer-nav{display:flex;flex-direction:column;gap:4px;margin-bottom:14px;}
.mobile-drawer .drawer-nav a{
  padding:12px 4px;
  font-size:16px;
  font-weight:500;
  color:var(--ink-2);
  border-bottom:1px solid var(--line);
}
.mobile-drawer .drawer-nav a.active{color:var(--primary);font-weight:600;}
.mobile-drawer .search-box,
.mobile-drawer .btn{width:100%;}
.mobile-drawer .btn{margin-top:12px;}

@media (max-width:1199px){
  .search-box{width:170px;}
}
@media (max-width:1099px){
  .main-nav{display:none;}
  .nav-toggle{display:inline-flex;}
}
@media (max-width:575px){
  .header-inner{height:64px;gap:12px;}
  .brand{font-size:16px;}
  .header-right .search-box,
  .header-right .btn{display:none;}
}

/* ---------- Page hero ---------- */
.page-hero{
  position:relative;
  min-height:340px;
  display:flex;
  align-items:center;
  color:#fff;
  background-image:linear-gradient(100deg,rgba(12,55,87,.72),rgba(23,86,140,.58)),url('/assets/images/backpic/back-2.webp');
  background-size:cover;
  background-position:center;
  overflow:hidden;
}
.page-hero::after{
  content:"";
  position:absolute;
  inset:0;
  background-image:repeating-linear-gradient(115deg,rgba(255,255,255,.05) 0 1px,transparent 1px 18px);
  pointer-events:none;
}
.hero-inner{position:relative;z-index:2;padding:56px 0 60px;max-width:840px;}
.breadcrumb-x{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:8px;
  font-size:14px;
  color:rgba(255,255,255,.8);
  margin-bottom:18px;
}
.breadcrumb-x a{color:rgba(255,255,255,.8);}
.breadcrumb-x a:hover{color:#fff;}
.breadcrumb-x span.sep{opacity:.6;}
.page-hero h1{color:#fff;max-width:820px;}
.hero-sub{
  margin-top:16px;
  font-size:17px;
  line-height:1.85;
  color:rgba(255,255,255,.88);
  max-width:700px;
}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:28px;}
.hero-tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:26px;}
.hero-tag{
  display:inline-flex;
  align-items:center;
  gap:6px;
  padding:6px 14px;
  border-radius:999px;
  background:rgba(255,255,255,.14);
  border:1px solid rgba(255,255,255,.28);
  font-size:13px;
  color:#fff;
}
@media (max-width:991px){
  .page-hero{min-height:300px;}
  .hero-inner{padding:44px 0 48px;}
}
@media (max-width:575px){
  .page-hero{min-height:0;}
  .hero-inner{padding:36px 0 40px;}
  .hero-sub{font-size:15.5px;}
  .hero-actions .btn{width:100%;}
}

/* ---------- Sections ---------- */
.section{padding:88px 0;}
.section-tint{background:var(--tint);border-top:1px solid var(--line);border-bottom:1px solid var(--line);}
.section-head{max-width:760px;margin-bottom:36px;}
.section-head .eyebrow{
  display:inline-flex;
  align-items:center;
  gap:8px;
  padding:4px 12px;
  border-radius:999px;
  background:var(--primary-soft);
  color:var(--primary);
  font-size:13px;
  font-weight:600;
  letter-spacing:.2px;
  margin-bottom:14px;
}
.section-head h2{margin-bottom:12px;}
.section-head p{font-size:16px;color:var(--ink-2);}
@media (max-width:991px){
  .section{padding:64px 0;}
  .section-head{margin-bottom:28px;}
}
@media (max-width:575px){
  .section{padding:48px 0;}
}

/* ---------- Stats ---------- */
.stat-grid{
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:24px;
}
.stat-card{
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  padding:26px 24px;
  box-shadow:var(--sh-1);
  transition:transform .24s ease,box-shadow .24s ease;
}
.stat-card:hover{transform:translateY(-2px);box-shadow:var(--sh-2);}
.stat-num{
  font-size:34px;
  font-weight:700;
  color:var(--primary);
  line-height:1.2;
  letter-spacing:-1px;
}
.stat-num span{font-size:16px;font-weight:600;color:var(--ink-3);margin-left:4px;}
.stat-label{margin-top:6px;font-size:15px;font-weight:600;color:var(--ink);}
.stat-note{margin-top:6px;font-size:13px;color:var(--ink-3);line-height:1.6;}
@media (max-width:991px){
  .stat-grid{grid-template-columns:repeat(2,1fr);gap:16px;}
}
@media (max-width:575px){
  .stat-grid{grid-template-columns:1fr;}
}

/* ---------- Panel & spec rows ---------- */
.panel{
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  box-shadow:var(--sh-1);
  overflow:hidden;
}
.panel-head{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  justify-content:space-between;
  gap:12px;
  padding:22px 26px;
  border-bottom:1px solid var(--line);
  background:linear-gradient(180deg,#fff,var(--tint));
}
.panel-head h3{font-size:18px;}
.panel-head .panel-meta{font-size:13px;color:var(--ink-3);display:inline-flex;align-items:center;gap:8px;}
.spec-list{border-top:0;}
.spec-row{
  display:grid;
  grid-template-columns:250px 1fr;
  gap:24px;
  padding:20px 26px;
  border-bottom:1px solid var(--line);
  transition:background .2s ease;
}
.spec-row:last-child{border-bottom:0;}
.spec-row:hover{background:var(--primary-soft);}
.spec-label{
  display:flex;
  align-items:flex-start;
  gap:12px;
  font-size:15px;
  font-weight:600;
  color:var(--ink);
  line-height:1.7;
}
.spec-label .idx{
  flex:0 0 auto;
  min-width:28px;
  height:28px;
  display:inline-flex;
  align-items:center;
  justify-content:center;
  border-radius:8px;
  background:var(--primary-soft);
  color:var(--primary);
  font-size:13px;
  font-weight:700;
}
.spec-value{font-size:15.5px;color:var(--ink-2);line-height:1.8;}
.spec-value strong{color:var(--ink);font-weight:600;}
.tag{
  display:inline-flex;
  align-items:center;
  gap:6px;
  padding:3px 10px;
  border-radius:999px;
  font-size:12.5px;
  font-weight:600;
  background:var(--primary-soft);
  color:var(--primary);
  margin-right:8px;
}
.tag-accent{background:rgba(224,123,57,.14);color:#B85F1F;}
.tag-green{background:rgba(46,139,98,.14);color:var(--success);}
@media (max-width:767px){
  .spec-row{grid-template-columns:1fr;gap:8px;padding:18px 20px;}
  .panel-head{padding:18px 20px;}
}

/* ---------- Compare ---------- */
.compare-grid{
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:28px;
}
.compare-card{
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  box-shadow:var(--sh-1);
  overflow:hidden;
  display:flex;
  flex-direction:column;
  transition:transform .24s ease,box-shadow .24s ease;
}
.compare-card:hover{transform:translateY(-2px);box-shadow:var(--sh-2);}
.compare-figure{
  position:relative;
  aspect-ratio:16/9;
  overflow:hidden;
  background:var(--tint);
}
.compare-figure img{width:100%;height:100%;object-fit:cover;transition:transform .24s ease-out;}
.compare-card:hover .compare-figure img{transform:scale(1.03);}
.compare-body{padding:24px 26px 28px;}
.compare-body h3{margin-bottom:10px;}
.compare-body p{font-size:15px;margin-bottom:16px;}
.check-list li{
  display:flex;
  align-items:flex-start;
  gap:10px;
  padding:9px 0;
  border-bottom:1px dashed var(--line);
  font-size:15px;
  color:var(--ink-2);
}
.check-list li:last-child{border-bottom:0;}
.check-list i{color:var(--primary);margin-top:6px;font-size:13px;}
@media (max-width:991px){
  .compare-grid{grid-template-columns:1fr;gap:20px;}
}

/* ---------- Rule list ---------- */
.rule-grid{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:24px;
}
.rule-card{
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  padding:26px 24px;
  box-shadow:var(--sh-1);
  transition:transform .24s ease,box-shadow .24s ease,border-color .24s ease;
}
.rule-card:hover{transform:translateY(-2px);box-shadow:var(--sh-2);border-color:#CFDEEE;}
.rule-icon{
  width:42px;
  height:42px;
  border-radius:12px;
  background:var(--primary-soft);
  color:var(--primary);
  display:inline-flex;
  align-items:center;
  justify-content:center;
  font-size:16px;
  margin-bottom:14px;
}
.rule-card h3{font-size:17px;margin-bottom:8px;}
.rule-card p{font-size:14.5px;color:var(--ink-2);}
@media (max-width:991px){
  .rule-grid{grid-template-columns:1fr 1fr;gap:16px;}
}
@media (max-width:575px){
  .rule-grid{grid-template-columns:1fr;}
}

/* ---------- FAQ ---------- */
.faq-wrap{max-width:900px;}
.accordion-item{
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--r-card) !important;
  margin-bottom:14px;
  overflow:hidden;
  box-shadow:var(--sh-1);
}
.accordion-header{margin:0;}
.accordion-button{
  position:relative;
  width:100%;
  padding:20px 24px 20px 30px;
  font-size:16.5px;
  font-weight:600;
  color:var(--ink);
  background:#fff;
  border:0;
  box-shadow:none !important;
  border-radius:0 !important;
}
.accordion-button::before{
  content:"";
  position:absolute;
  left:0;
  top:16px;
  bottom:16px;
  width:3px;
  border-radius:0 3px 3px 0;
  background:var(--primary);
}
.accordion-button::after{
  content:"\f078";
  font-family:"Font Awesome 6 Free";
  font-weight:900;
  font-size:13px;
  width:auto;
  height:auto;
  background-image:none;
  color:var(--ink-3);
  transition:transform .25s ease,color .25s ease;
  margin-left:16px;
}
.accordion-button:not(.collapsed){
  color:var(--primary);
  background:var(--primary-soft);
}
.accordion-button:not(.collapsed)::after{transform:rotate(180deg);color:var(--primary);}
.accordion-button:focus{box-shadow:none;outline:2px solid rgba(23,86,140,.35);outline-offset:-2px;}
.accordion-body{
  padding:18px 26px 22px 30px;
  font-size:15.5px;
  line-height:1.85;
  color:var(--ink-2);
  background:var(--tint);
  border-top:1px solid var(--line);
}

/* ---------- CTA ---------- */
.cta-bar{
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  box-shadow:var(--sh-1);
  padding:30px 32px;
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  justify-content:space-between;
  gap:24px;
}
.cta-text h2{font-size:22px;margin-bottom:8px;}
.cta-text p{font-size:15px;color:var(--ink-2);max-width:560px;}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px;}
.share-group{display:flex;align-items:center;gap:10px;margin-left:auto;}
.share-btn{
  width:44px;
  height:44px;
  display:inline-flex;
  align-items:center;
  justify-content:center;
  border-radius:12px;
  border:1px solid var(--line);
  background:#fff;
  color:var(--ink-2);
  cursor:pointer;
  transition:background .2s ease,color .2s ease,border-color .2s ease,transform .2s ease;
}
.share-btn:hover{background:var(--primary-soft);color:var(--primary);border-color:#CFDEEE;transform:translateY(-1px);}
.share-btn.is-on{background:var(--primary);border-color:var(--primary);color:#fff;}
.back-row{margin-top:22px;display:flex;flex-wrap:wrap;gap:18px;align-items:center;font-size:14px;color:var(--ink-3);}
@media (max-width:767px){
  .cta-bar{padding:24px 20px;}
  .share-group{margin-left:0;}
}

/* ---------- Footer ---------- */
.site-footer{
  background:var(--ink);
  color:rgba(255,255,255,.72);
  padding:64px 0 28px;
  margin-top:0;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.6fr 1fr 1fr 1.3fr;
  gap:32px;
}
.footer-col h3{
  color:#fff;
  font-size:15px;
  font-weight:600;
  margin-bottom:16px;
  letter-spacing:.2px;
}
.footer-col ul li{margin-bottom:10px;font-size:14.5px;}
.footer-col ul li a{color:rgba(255,255,255,.72);}
.footer-col ul li a:hover{color:#fff;}
.footer-brand{
  display:flex;
  align-items:center;
  gap:10px;
  color:#fff;
  font-size:18px;
  font-weight:700;
  margin-bottom:14px;
}
.footer-brand .brand-icon{background:var(--primary);box-shadow:none;}
.footer-desc{font-size:14px;line-height:1.85;color:rgba(255,255,255,.66);max-width:340px;}
.footer-contact li{
  display:flex;
  align-items:center;
  gap:10px;
  font-size:14px;
  color:rgba(255,255,255,.7);
}
.footer-contact i{color:var(--accent);width:16px;}
.footer-btn{
  display:inline-flex;
  align-items:center;
  gap:8px;
  margin-top:16px;
  height:42px;
  padding:0 20px;
  border-radius:var(--r-btn);
  background:var(--accent);
  color:#fff;
  font-size:14px;
  font-weight:600;
  transition:background .2s ease,transform .2s ease;
}
.footer-btn:hover{background:var(--accent-hover);color:#fff;transform:translateY(-1px);}
.footer-bottom{
  margin-top:44px;
  padding-top:20px;
  border-top:1px solid rgba(255,255,255,.14);
  display:flex;
  flex-wrap:wrap;
  justify-content:space-between;
  gap:10px;
  font-size:13px;
  color:rgba(255,255,255,.55);
}
.footer-col + .footer-col{border-left:1px solid rgba(255,255,255,.1);padding-left:32px;}
@media (max-width:991px){
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px;}
  .footer-col + .footer-col{border-left:0;padding-left:0;}
}
@media (max-width:575px){
  .site-footer{padding:44px 0 22px;}
  .footer-grid{grid-template-columns:1fr;}
}