/* roulang page: index */
:root{
  --bs-primary:#1E6FB2;
  --bs-primary-dark:#175A8F;
  --bs-primary-light:#E8F2FB;
  --bs-primary-soft:#F0F7FE;
  --bs-accent:#F59E0B;
  --bs-accent-light:#FEF3C7;
  --bs-body-text:#1E293B;
  --bs-secondary-text:#475569;
  --bs-muted-text:#94A3B8;
  --bs-border:#E2E8F0;
  --bs-body-bg:#F8FAFC;
  --bs-card-bg:#FFFFFF;
  --bs-footer-bg:#0F172A;
  --radius-lg:16px;
  --radius-md:12px;
  --radius-sm:10px;
  --radius-xs:8px;
  --shadow-card:0 4px 20px rgba(30,111,178,0.06);
  --shadow-hover:0 8px 30px rgba(30,111,178,0.12);
  --shadow-stats:0 8px 30px rgba(30,111,178,0.1);
  --shadow-btn:0 2px 8px rgba(30,111,178,0.25);
  --font-family:-apple-system,"PingFang SC","Microsoft YaHei","Noto Sans SC",sans-serif;
}
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{
  font-family:var(--font-family);
  color:var(--bs-body-text);
  background:var(--bs-body-bg);
  line-height:1.75;
  overflow-x:hidden;
}
a{text-decoration:none;color:var(--bs-primary);transition:color .2s ease}
a:hover{color:var(--bs-primary-dark)}
img{max-width:100%;display:block}
.container{max-width:1200px;padding-left:1.25rem;padding-right:1.25rem;margin:0 auto}
.row{margin-left:-.75rem;margin-right:-.75rem}
.row>*{padding-left:.75rem;padding-right:.75rem}
@media(max-width:768px){
  .container{padding-left:1rem;padding-right:1rem}
}

/* ===== Buttons ===== */
.btn{
  display:inline-flex;align-items:center;justify-content:center;
  font-weight:600;font-size:.95rem;line-height:1.5;
  padding:.75rem 1.5rem;min-width:140px;min-height:48px;
  border-radius:var(--radius-sm);border:none;cursor:pointer;
  transition:all .2s ease;text-align:center;letter-spacing:.02em;
}
.btn-primary{
  background:var(--bs-primary);color:#fff;
  box-shadow:var(--shadow-btn);
}
.btn-primary:hover{
  background:var(--bs-primary-dark);color:#fff;
  transform:translateY(-2px);box-shadow:0 6px 16px rgba(30,111,178,.3);
}
.btn-primary:active{transform:translateY(0);background:var(--bs-primary);box-shadow:none}
.btn-outline{
  background:transparent;color:var(--bs-primary);
  border:1px solid var(--bs-primary);box-shadow:none;
}
.btn-outline:hover{
  background:var(--bs-primary-light);color:var(--bs-primary-dark);
  transform:translateY(-2px);
}
.btn-outline:active{transform:translateY(0);background:var(--bs-primary-light)}
.btn-accent{
  background:var(--bs-accent);color:#1E293B;font-weight:700;
  box-shadow:0 2px 10px rgba(245,158,11,.3);
}
.btn-accent:hover{
  background:#E08E0A;color:#1E293B;
  box-shadow:0 4px 18px rgba(245,158,11,.4);transform:translateY(-2px);
}
.btn-block{width:100%}
@media(max-width:576px){
  .btn{width:100%;min-width:0}
}

/* ===== Badges ===== */
.badge{
  display:inline-block;padding:.25rem .75rem;font-size:.75rem;
  font-weight:600;border-radius:999px;line-height:1.5;letter-spacing:.02em;
}
.badge-primary{background:var(--bs-primary-light);color:var(--bs-primary)}
.badge-accent{background:var(--bs-accent-light);color:#B45309}
.badge-dark{background:#1E293B;color:#fff}
.badge-outline{border:1px solid var(--bs-border);color:var(--bs-secondary-text);background:transparent}

/* ===== Header ===== */
.site-header{
  position:sticky;top:0;z-index:1000;
  background:#fff;border-bottom:1px solid var(--bs-border);
  min-height:72px;display:flex;align-items:center;
}
.navbar-main{
  display:flex;align-items:center;justify-content:space-between;
  width:100%;min-height:72px;padding:0;
}
.brand-logo{
  display:inline-flex;align-items:center;gap:.5rem;
  flex-shrink:0;
}
.logo-icon{
  width:40px;height:40px;border-radius:10px;
  background:var(--bs-primary-light);display:flex;align-items:center;justify-content:center;
  color:var(--bs-primary);flex-shrink:0;
}
.logo-icon svg{width:22px;height:22px}
.logo-text{
  font-size:1.2rem;font-weight:700;color:var(--bs-primary);
  line-height:1.2;letter-spacing:.02em;white-space:nowrap;
}
.logo-badge{
  display:inline-block;background:var(--bs-accent-light);color:#B45309;
  font-size:.65rem;font-weight:700;padding:.08rem .45rem;
  border-radius:999px;margin-left:.25rem;vertical-align:2px;
}
.nav-menu{
  display:flex;align-items:center;list-style:none;margin:0;padding:0;gap:.2rem;
}
.nav-item{margin:0}
.nav-link{
  display:flex;align-items:center;height:44px;padding:0 1.2rem;
  font-size:.95rem;font-weight:500;color:var(--bs-secondary-text);
  border-radius:var(--radius-xs);transition:all .2s ease;
  background:transparent;border:none;line-height:44px;
}
.nav-link:hover{
  background:var(--bs-primary-light);color:var(--bs-primary);
}
.nav-link.active{
  background:var(--bs-primary-light);color:var(--bs-primary);
  font-weight:600;
}
.nav-cta{
  display:flex;align-items:center;gap:.5rem;margin-left:1rem;
}
.nav-cta .btn{min-width:0;padding:.5rem 1.25rem;min-height:42px;font-size:.9rem}
.navbar-toggler{
  display:none;border:none;background:transparent;color:var(--bs-primary);
  font-size:1.6rem;cursor:pointer;padding:.25rem .5rem;line-height:1;
}
@media(max-width:991px){
  .navbar-toggler{display:block}
  .nav-wrapper{
    position:absolute;top:72px;left:0;right:0;
    background:#fff;border-bottom:1px solid var(--bs-border);
    box-shadow:0 12px 24px rgba(0,0,0,.06);
    padding:1rem 1.25rem 1.5rem;display:none;z-index:999;
  }
  .nav-wrapper.show{display:block}
  .nav-menu{flex-direction:column;align-items:stretch;gap:.4rem}
  .nav-link{width:100%;height:48px;padding:0 1rem;line-height:48px;border-radius:8px}
  .nav-cta{flex-direction:column;margin:1rem 0 0;gap:.5rem}
  .nav-cta .btn{width:100%}
}

/* ===== Hero ===== */
.hero-section{
  background:linear-gradient(135deg,var(--bs-primary-soft) 0%,#fff 70%);
  position:relative;overflow:hidden;
  padding:5.5rem 0 6rem;
}
.hero-bg{
  position:absolute;right:-10%;top:0;bottom:0;width:60%;z-index:0;
  background-image:url('/assets/images/backpic/back-1.png');
  background-size:cover;background-position:center center;
  opacity:.18;
}
.hero-section .container{position:relative;z-index:2}
.hero-title{
  font-size:clamp(2rem,4vw,2.65rem);
  font-weight:700;line-height:1.25;color:var(--bs-body-text);
  margin-bottom:1rem;letter-spacing:.01em;
}
.hero-title .brand-highlight{color:var(--bs-primary)}
.hero-sub{
  font-size:1.125rem;line-height:1.7;color:var(--bs-secondary-text);
  margin-bottom:1rem;max-width:520px;
}
.hero-divider{
  display:flex;align-items:center;gap:.5rem;margin:1.5rem 0;
  max-width:320px;
}
.hero-divider::before,.hero-divider::after{
  content:'';flex:1;height:1px;background:var(--bs-border);
}
.hero-divider .dot{width:8px;height:8px;border-radius:50%;background:var(--bs-accent);flex-shrink:0}
.hero-divider .dot.dot-left{background:var(--bs-primary)}
.hero-actions{
  display:flex;gap:1rem;flex-wrap:wrap;margin-bottom:1.5rem;
}
.hero-trust{
  display:flex;gap:1.25rem;flex-wrap:wrap;align-items:center;
  margin-top:.5rem;
}
.trust-item{
  display:inline-flex;align-items:center;gap:.4rem;
  font-size:.85rem;color:#64748B;letter-spacing:.01em;
}
.trust-item i{color:var(--bs-primary);font-size:1rem}
.hero-visual{
  position:relative;padding:1rem;
}
.hero-visual-wrap{
  position:relative;border-radius:var(--radius-lg);
  overflow:hidden;box-shadow:var(--shadow-hover);
  z-index:2;
}
.hero-visual-wrap img{
  width:100%;aspect-ratio:4/3;object-fit:cover;border-radius:var(--radius-lg);
}
.hero-deco{
  position:absolute;top:-24px;right:-24px;width:70%;height:70%;
  background:var(--bs-primary-light);border-radius:var(--radius-lg);
  transform:rotate(12deg);z-index:1;
}
.hero-deco-2{
  position:absolute;bottom:-24px;left:-24px;width:50%;height:50%;
  background:var(--bs-accent-light);border-radius:var(--radius-md);
  transform:rotate(-8deg);z-index:0;
}
@media(max-width:991px){
  .hero-section{padding:3rem 0 5rem}
  .hero-visual{margin-top:2.5rem}
}
@media(max-width:576px){
  .hero-title{font-size:1.7rem}
  .hero-actions{flex-direction:column}
  .hero-actions .btn{width:100%}
  .hero-trust{justify-content:center}
}

/* ===== Stats Bar ===== */
.stats-section{
  position:relative;z-index:10;margin-top:-50px;padding-bottom:1rem;
}
.stats-card{
  background:#fff;border-radius:var(--radius-lg);
  box-shadow:var(--shadow-stats);padding:1.5rem 1rem;
  display:grid;grid-template-columns:repeat(4,1fr);
  gap:0;align-items:center;border:1px solid #F1F5F9;
}
.stat-item{
  text-align:center;padding:1rem .5rem;position:relative;
}
.stat-item + .stat-item::before{
  content:'';position:absolute;left:0;top:50%;transform:translateY(-50%);
  width:1px;height:48px;background:var(--bs-border);
}
.stat-num{
  font-size:1.75rem;font-weight:700;color:var(--bs-primary);
  line-height:1.3;letter-spacing:-.01em;
}
.stat-label{
  font-size:.875rem;color:#64748B;margin-top:.25rem;
}
@media(max-width:768px){
  .stats-card{grid-template-columns:repeat(2,1fr);gap:0}
  .stat-item:nth-child(3)::before{display:none}
  .stat-item:nth-child(n+3){border-top:1px solid var(--bs-border)}
}
@media(max-width:576px){
  .stats-section{margin-top:-30px}
  .stats-card{padding:1rem .5rem}
  .stat-num{font-size:1.35rem}
}

/* ===== General Section ===== */
.section{
  padding:clamp(4rem,8vw,6rem) 0;
}
.section-head{
  text-align:center;max-width:760px;margin:0 auto 3rem;
}
.section-head h2{
  font-size:clamp(1.5rem,3vw,2rem);
  font-weight:700;line-height:1.35;color:var(--bs-body-text);
  margin-bottom:.75rem;
}
.section-head h2 span{color:var(--bs-primary)}
.section-head p{
  font-size:1rem;line-height:1.75;color:var(--bs-secondary-text);
}
.section-head .section-badge{
  display:inline-block;margin-bottom:1rem;
}
.section-sub{
  font-size:1rem;color:var(--bs-secondary-text);margin-top:.5rem;
  max-width:680px;margin-left:auto;margin-right:auto;
}

/* ===== Bento Service Grid ===== */
.services-section{background:#fff}
.bento-grid{
  display:grid;grid-template-columns:repeat(3,1fr);
  gap:1.5rem;
}
.bento-card{
  background:var(--bs-card-bg);border-radius:var(--radius-lg);
  padding:1.75rem;box-shadow:var(--shadow-card);
  border:1px solid #F1F5F9;position:relative;overflow:hidden;
  transition:all .25s ease;
  display:flex;flex-direction:column;
}
.bento-card:hover{
  box-shadow:var(--shadow-hover);transform:translateY(-4px);
  border-color:var(--bs-primary-light);
}
.bento-card-large{grid-column:span 2;flex-direction:row;gap:1.5rem;align-items:center;padding:2rem}
.bento-card-wide{grid-column:span 3;flex-direction:row;gap:2rem;align-items:center;padding:2rem 2.5rem}
.bento-icon{
  width:48px;height:48px;border-radius:12px;
  background:var(--bs-primary-light);color:var(--bs-primary);
  display:flex;align-items:center;justify-content:center;
  font-size:1.4rem;margin-bottom:1rem;flex-shrink:0;
  transition:all .25s ease;
}
.bento-card:hover .bento-icon{
  background:var(--bs-primary);color:#fff;
}
.bento-card-large .bento-icon,.bento-card-wide .bento-icon{
  margin-bottom:0;width:56px;height:56px;font-size:1.6rem;
}
.bento-content{flex:1}
.bento-content h3{
  font-size:1.15rem;font-weight:700;color:var(--bs-body-text);
  margin-bottom:.5rem;
}
.bento-content p{
  font-size:.92rem;line-height:1.7;color:var(--bs-secondary-text);
  margin-bottom:1rem;
}
.bento-link{
  font-size:.875rem;font-weight:600;color:var(--bs-primary);
  display:inline-flex;align-items:center;gap:.25rem;
  transition:gap .2s ease;
}
.bento-link:hover{gap:.5rem;color:var(--bs-primary-dark)}
.bento-img{
  border-radius:var(--radius-md);overflow:hidden;flex-shrink:0;
  max-width:240px;width:100%;
}
.bento-img img{
  width:100%;height:160px;object-fit:cover;border-radius:var(--radius-md);
}
@media(max-width:991px){
  .bento-grid{grid-template-columns:repeat(2,1fr)}
  .bento-card-large{grid-column:span 2}
  .bento-card-wide{grid-column:span 2}
}
@media(max-width:576px){
  .bento-grid{grid-template-columns:1fr}
  .bento-card-large{grid-column:span 1;flex-direction:column;align-items:flex-start;padding:1.5rem}
  .bento-card-wide{grid-column:span 1;flex-direction:column;align-items:flex-start;padding:1.5rem}
  .bento-img{max-width:100%;margin-top:1rem}
}

/* ===== Compare Section ===== */
.compare-section{background:var(--bs-body-bg)}
.compare-grid{
  display:grid;grid-template-columns:1fr 1fr;gap:2rem;
}
.compare-card{
  background:#F1F5F9;border-radius:var(--radius-lg);
  padding:2rem;position:relative;
}
.compare-card-good{
  background:var(--bs-primary-soft);
  border-left:2px solid var(--bs-primary);
  padding-left:2.25rem;
}
.compare-title{
  display:flex;align-items:center;gap:.5rem;
  font-size:1.1rem;font-weight:700;margin-bottom:1.25rem;
  color:var(--bs-body-text);
}
.compare-title i{font-size:1.2rem}
.compare-card-bad .compare-title i{color:#EF4444}
.compare-card-good .compare-title i{color:var(--bs-primary)}
.compare-list{list-style:none;padding:0;margin:0}
.compare-list li{
  display:flex;align-items:flex-start;gap:.5rem;
  padding:.45rem 0;font-size:.92rem;line-height:1.6;
  color:var(--bs-secondary-text);
}
.compare-list li i{
  font-size:1.05rem;flex-shrink:0;margin-top:.1rem;
}
.compare-card-bad .compare-list li i{color:#EF4444}
.compare-card-good .compare-list li i{color:var(--bs-primary)}
.compare-note{
  font-size:.8rem;color:var(--bs-muted-text);margin-top:1.25rem;
  line-height:1.6;
}
.compare-card-good .compare-note{color:var(--bs-primary-dark)}
@media(max-width:768px){
  .compare-grid{grid-template-columns:1fr;gap:1rem}
}

/* ===== News Section ===== */
.news-section{background:#fff}
.news-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:1.5rem}
.news-card{
  background:#fff;border-radius:var(--radius-lg);overflow:hidden;
  box-shadow:var(--shadow-card);border:1px solid #F1F5F9;
  display:flex;flex-direction:column;height:100%;
  transition:all .25s ease;
}
.news-card:hover{
  box-shadow:var(--shadow-hover);transform:translateY(-4px);
  border-color:var(--bs-primary-light);
}
.news-card-cover{
  position:relative;aspect-ratio:16/9;overflow:hidden;flex-shrink:0;
}
.news-card-cover img{
  width:100%;height:100%;object-fit:cover;
  transition:transform .4s ease;
}
.news-card:hover .news-card-cover img{transform:scale(1.05)}
.news-badge{
  position:absolute;top:12px;left:12px;
  background:rgba(232,242,251,.92);backdrop-filter:blur(4px);
  color:var(--bs-primary);font-size:.75rem;font-weight:600;
  padding:.25rem .75rem;border-radius:999px;z-index:2;
}
.news-card-content{
  padding:1.25rem 1.5rem;display:flex;flex-direction:column;flex:1;
}
.news-title{
  font-size:1.05rem;font-weight:600;line-height:1.5;
  color:var(--bs-body-text);margin-bottom:.5rem;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.news-card:hover .news-title{color:var(--bs-primary)}
.news-desc{
  font-size:.875rem;color:var(--bs-secondary-text);line-height:1.7;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
  margin-bottom:1rem;
}
.news-meta{
  border-top:1px solid var(--bs-border);padding-top:.75rem;
  display:flex;align-items:center;justify-content:space-between;
  margin-top:auto;
}
.news-date{font-size:.85rem;color:var(--bs-muted-text)}
.news-more{font-size:.85rem;font-weight:600;color:var(--bs-primary)}
.empty-state{
  width:100%;border:2px dashed var(--bs-border);border-radius:var(--radius-lg);
  min-height:160px;display:flex;align-items:center;justify-content:center;
  color:var(--bs-muted-text);font-size:.95rem;
  background:#FAFCFF;
}
@media(max-width:991px){
  .news-grid{grid-template-columns:repeat(2,1fr)}
}
@media(max-width:576px){
  .news-grid{grid-template-columns:1fr}
}

/* ===== FAQ ===== */
.faq-section{background:var(--bs-body-bg)}
.accordion-custom{max-width:860px;margin:0 auto}
.accordion-custom .accordion-item{
  background:#fff;border:1px solid #F1F5F9;border-radius:var(--radius-md);
  box-shadow:0 2px 10px rgba(0,0,0,.04);
  margin-bottom:.75rem;overflow:hidden;
  transition:border-color .25s ease,box-shadow .25s ease;
}
.accordion-custom .accordion-item:has(.accordion-button:not(.collapsed)){
  border-color:var(--bs-primary);
  background:var(--bs-primary-soft);
  box-shadow:0 4px 16px rgba(30,111,178,.08);
}
.accordion-custom .accordion-button{
  background:transparent;color:var(--bs-body-text);
  font-weight:600;font-size:.98rem;
  padding:1.1rem 1.25rem;width:100%;text-align:left;
  display:flex;align-items:center;justify-content:space-between;
  border:none;cursor:pointer;min-height:52px;
  transition:color .2s ease;
}
.accordion-custom .accordion-button:hover{color:var(--bs-primary)}
.accordion-custom .accordion-button::after{display:none}
.accordion-custom .accordion-icon{
  width:20px;height:20px;flex-shrink:0;transition:transform .3s ease;
  color:var(--bs-primary);
}
.accordion-custom .accordion-button:not(.collapsed) .accordion-icon{
  transform:rotate(180deg);
}
.accordion-custom .accordion-body{
  padding:0 1.25rem 1.25rem;
  font-size:.92rem;line-height:1.75;color:var(--bs-secondary-text);
  border-top:1px solid rgba(226,232,240,.6);padding-top:1rem;
}
.accordion-custom .accordion-button:focus{
  outline:none;box-shadow:none;
}
.accordion-custom .accordion-button:focus-visible{
  outline:2px solid var(--bs-primary);outline-offset:2px;border-radius:var(--radius-md);
}

/* ===== Contact Section ===== */
.contact-section{background:#fff}
.contact-wrap{
  display:grid;grid-template-columns:1.2fr 1fr;gap:2rem;
  max-width:1000px;margin:0 auto;
}
.contact-card{
  background:#fff;border-radius:var(--radius-lg);
  box-shadow:var(--shadow-card);padding:2rem;
  border:1px solid #F1F5F9;
}
.form-label{
  display:block;font-size:.9rem;font-weight:600;color:#334155;
  margin-bottom:.4rem;
}
.form-label .required{color:var(--bs-accent);margin-left:2px}
.form-control{
  width:100%;height:48px;border:1px solid #CBD5E1;
  border-radius:var(--radius-xs);padding:.75rem 1rem;
  font-size:.92rem;color:var(--bs-body-text);background:#fff;
  transition:border-color .2s ease,box-shadow .2s ease;
  font-family:var(--font-family);
}
.form-control::placeholder{color:var(--bs-muted-text)}
.form-control:focus{
  outline:none;border-color:var(--bs-primary);
  box-shadow:0 0 0 3px rgba(30,111,178,.15);
}
textarea.form-control{
  height:auto;min-height:120px;resize:vertical;line-height:1.6;
}
.form-select{
  appearance:none;
  background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' fill='%231E6FB2' viewBox='0 0 16 16'%3E%3Cpath d='M8 11L3 6h10l-5 5z'/%3E%3C/svg%3E");
  background-repeat:no-repeat;background-position:right 1rem center;
  padding-right:2.5rem;cursor:pointer;
}
.form-group{margin-bottom:1.25rem}
.form-success{
  background:#ECFDF5;border:1px solid #A7F3D0;color:#065F46;
  border-radius:10px;padding:.85rem 1rem;font-size:.9rem;
  margin-bottom:1rem;display:flex;align-items:center;gap:.5rem;
}
.form-success i{font-size:1.1rem}
.contact-info-card{
  background:var(--bs-primary-soft);border-radius:var(--radius-lg);
  padding:2rem;border-left:2px solid var(--bs-primary);
  display:flex;flex-direction:column;gap:1.25rem;
}
.info-row{
  display:flex;align-items:flex-start;gap:.75rem;
}
.info-row .icon{
  width:40px;height:40px;border-radius:10px;
  background:#fff;color:var(--bs-primary);
  display:flex;align-items:center;justify-content:center;
  font-size:1.1rem;flex-shrink:0;box-shadow:0 2px 8px rgba(30,111,178,.08);
}
.info-row-txt{
  display:flex;flex-direction:column;
}
.info-row-txt .label{font-size:.8rem;color:var(--bs-muted-text);font-weight:500}
.info-row-txt .value{font-size:.92rem;color:var(--bs-body-text);font-weight:600;word-break:break-all}
.qrcode-placeholder{
  width:120px;height:120px;background:#fff;border:1px solid var(--bs-border);
  border-radius:12px;display:flex;align-items:center;justify-content:center;
  color:var(--bs-muted-text);font-size:.75rem;flex-direction:column;gap:.25rem;
  box-shadow:0 2px 8px rgba(0,0,0,.04);
}
.qrcode-placeholder i{font-size:1.5rem;color:var(--bs-primary)}
@media(max-width:768px){
  .contact-wrap{grid-template-columns:1fr}
}

/* ===== Footer ===== */
.site-footer{
  background:var(--bs-footer-bg);color:#94A3B8;
  padding:4rem 0 0;font-size:.875rem;
}
.footer-grid{
  display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:2rem;
  padding-bottom:2.5rem;
}
.footer-brand{display:flex;align-items:center;gap:.5rem;margin-bottom:1rem}
.footer-brand .logo-icon{background:rgba(255,255,255,.12);color:#fff}
.footer-brand .logo-text{color:#fff}
.footer-desc{
  font-size:.85rem;color:var(--bs-muted-text);line-height:1.75;
  margin-bottom:1.25rem;
}
.footer-social{display:flex;gap:.75rem}
.footer-social a{
  width:36px;height:36px;border-radius:8px;
  background:rgba(255,255,255,.08);color:#94A3B8;
  display:flex;align-items:center;justify-content:center;
  font-size:1rem;transition:all .2s ease;
}
.footer-social a:hover{background:var(--bs-primary);color:#fff;transform:translateY(-2px)}
.footer-title{
  font-size:.95rem;font-weight:600;color:#fff;margin-bottom:1rem;
  letter-spacing:.02em;
}
.footer-links{list-style:none;padding:0;margin:0}
.footer-links li{margin-bottom:.2rem}
.footer-links a{
  color:#94A3B8;font-size:.875rem;line-height:2.2;
  transition:color .2s ease,padding-left .2s ease;
  display:inline-block;
}
.footer-links a:hover{color:#E2E8F0;padding-left:2px}
.footer-contact{list-style:none;padding:0;margin:0}
.footer-contact li{
  display:flex;align-items:flex-start;gap:.5rem;padding:.4rem 0;
  color:#94A3B8;font-size:.875rem;line-height:1.6;
}
.footer-contact i{color:var(--bs-primary);margin-top:.15rem;font-size:1rem;flex-shrink:0}
.footer-bottom{
  border-top:1px solid #1E293B;padding:1.25rem 0;
  display:flex;align-items:center;justify-content:space-between;
  gap:.75rem;flex-wrap:wrap;
  font-size:.82rem;color:#64748B;
}
.footer-bottom a{color:#94A3B8}
.footer-bottom a:hover{color:#fff}
@media(max-width:991px){
  .footer-grid{grid-template-columns:repeat(2,1fr)}
}
@media(max-width:576px){
  .footer-grid{grid-template-columns:1fr;gap:1.5rem}
  .footer-bottom{flex-direction:column;text-align:center}
}

/* ===== Focus states ===== */
a:focus-visible,.btn:focus-visible,.accordion-button:focus-visible{
  outline:2px solid var(--bs-primary);outline-offset:2px;border-radius:6px;
}

/* ===== Scroll margin ===== */
section[id]{scroll-margin-top:90px}

/* roulang page: category1 */
:root {
            --bs-primary: #1E6FB2;
            --bs-primary-dark: #175A8F;
            --bs-primary-light: #E8F2FB;
            --bs-primary-soft: #F0F7FE;
            --bs-accent: #F59E0B;
            --bs-accent-light: #FEF3C7;
            --bs-body-text: #1E293B;
            --bs-text-secondary: #475569;
            --bs-text-muted: #94A3B8;
            --bs-border: #E2E8F0;
            --bs-body-bg: #F8FAFC;
            --bs-footer-bg: #0F172A;
            --bs-radius-lg: 16px;
            --bs-radius-md: 12px;
            --bs-radius-sm: 8px;
            --bs-shadow: 0 4px 20px rgba(30, 111, 178, 0.06);
            --bs-shadow-hover: 0 8px 30px rgba(30, 111, 178, 0.12);
            --bs-shadow-float: 0 8px 30px rgba(30, 111, 178, 0.1);
        }

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

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: -apple-system, "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
            background-color: var(--bs-body-bg);
            color: var(--bs-body-text);
            line-height: 1.65;
            margin: 0;
            padding: 0;
            overflow-x: hidden;
        }

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

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

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

        .container {
            max-width: 1200px;
            padding-left: 1.25rem;
            padding-right: 1.25rem;
        }

        .btn {
            border-radius: 10px;
            font-weight: 600;
            padding: 0.75rem 1.5rem;
            min-width: 140px;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            border: none;
            transition: all .2s ease;
            font-size: 0.95rem;
            line-height: 1.5;
        }

        .btn-primary {
            background-color: var(--bs-primary);
            color: #fff;
            box-shadow: 0 2px 8px rgba(30, 111, 178, 0.25);
        }

        .btn-primary:hover {
            background-color: var(--bs-primary-dark);
            color: #fff;
            transform: translateY(-2px);
            box-shadow: 0 6px 18px rgba(30, 111, 178, 0.32);
        }

        .btn-primary:active {
            transform: translateY(0);
            background-color: var(--bs-primary-dark);
        }

        .btn-primary:focus-visible {
            outline: 3px solid rgba(30, 111, 178, 0.35);
            outline-offset: 2px;
        }

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

        .btn-outline:hover {
            background-color: var(--bs-primary-light);
            color: var(--bs-primary-dark);
            transform: translateY(-2px);
        }

        .btn-accent {
            background-color: var(--bs-accent);
            color: #1E293B;
            box-shadow: 0 2px 8px rgba(245, 158, 11, 0.25);
        }

        .btn-accent:hover {
            background-color: #f0a009;
            color: #1E293B;
            transform: translateY(-2px);
            box-shadow: 0 6px 20px rgba(245, 158, 11, 0.4);
        }

        /* ===== Header ===== */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 1000;
            background: #fff;
            border-bottom: 1px solid var(--bs-border);
            height: 72px;
            display: flex;
            align-items: center;
        }

        .navbar-main {
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            position: relative;
        }

        .brand-logo {
            display: flex;
            align-items: center;
            gap: 0.6rem;
            flex-shrink: 0;
        }

        .logo-icon {
            width: 40px;
            height: 40px;
            background: var(--bs-primary-light);
            border-radius: 10px;
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--bs-primary);
            flex-shrink: 0;
        }

        .logo-icon svg {
            width: 22px;
            height: 22px;
        }

        .logo-text {
            font-size: 1.25rem;
            font-weight: 700;
            color: var(--bs-body-text);
            letter-spacing: 0.5px;
            display: flex;
            align-items: center;
            gap: 0.5rem;
        }

        .logo-badge {
            font-size: 0.65rem;
            font-weight: 600;
            color: var(--bs-primary);
            background: var(--bs-primary-light);
            border-radius: 999px;
            padding: 0.2rem 0.6rem;
            white-space: nowrap;
        }

        .navbar-toggler {
            display: none;
            background: none;
            border: none;
            font-size: 1.5rem;
            color: var(--bs-primary);
            cursor: pointer;
            padding: 0.25rem 0.5rem;
        }

        .nav-wrapper {
            display: flex;
            align-items: center;
            gap: 1.5rem;
        }

        .nav-menu {
            display: flex;
            align-items: center;
            list-style: none;
            margin: 0;
            padding: 0;
            gap: 0.25rem;
        }

        .nav-item {
            margin: 0;
        }

        .nav-link {
            display: block;
            padding: 0.55rem 1.2rem;
            color: var(--bs-text-secondary);
            font-weight: 500;
            font-size: 0.95rem;
            border-radius: 8px;
            transition: all .2s ease;
        }

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

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

        .nav-cta {
            flex-shrink: 0;
        }

        .nav-cta .btn {
            min-width: 120px;
            padding: 0.6rem 1.25rem;
            font-size: 0.9rem;
        }

        /* ===== Category Hero ===== */
        .category-hero {
            background: linear-gradient(135deg, #F0F7FE 0%, #FFFFFF 55%);
            padding: 4.5rem 0 5rem;
            position: relative;
            overflow: hidden;
        }

        .category-hero::before {
            content: "";
            position: absolute;
            right: -80px;
            top: -80px;
            width: 260px;
            height: 260px;
            background: radial-gradient(circle, rgba(30, 111, 178, 0.08) 0%, transparent 70%);
            border-radius: 50%;
        }

        .category-hero-inner {
            display: flex;
            align-items: center;
            gap: 3rem;
            position: relative;
            z-index: 2;
        }

        .category-hero-text {
            flex: 1.1;
        }

        .category-hero-visual {
            flex: 0.9;
            position: relative;
        }

        .category-hero-visual::before {
            content: "";
            position: absolute;
            top: -14px;
            right: -14px;
            width: 100%;
            height: 100%;
            border-radius: 14px;
            background: var(--bs-primary-light);
            transform: rotate(3deg);
            z-index: 0;
        }

        .category-hero-visual img {
            border-radius: 14px;
            box-shadow: 0 12px 36px rgba(30, 111, 178, 0.16);
            position: relative;
            z-index: 1;
            width: 100%;
            height: 320px;
            object-fit: cover;
        }

        .category-hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 0.4rem;
            background: var(--bs-primary-light);
            color: var(--bs-primary);
            font-size: 0.8rem;
            font-weight: 600;
            padding: 0.35rem 0.9rem;
            border-radius: 999px;
            margin-bottom: 1.1rem;
        }

        .category-hero h1 {
            font-size: clamp(1.75rem, 3.5vw, 2.5rem);
            font-weight: 700;
            line-height: 1.25;
            color: var(--bs-body-text);
            margin-bottom: 1rem;
            letter-spacing: 1px;
        }

        .category-hero h1 span {
            color: var(--bs-primary);
        }

        .category-hero-text p {
            font-size: 1.05rem;
            line-height: 1.75;
            color: var(--bs-text-secondary);
            max-width: 540px;
            margin-bottom: 1.6rem;
        }

        .category-hero-stats {
            display: flex;
            gap: 2rem;
            flex-wrap: wrap;
        }

        .category-hero-stats .stat-item {
            display: flex;
            flex-direction: column;
        }

        .category-hero-stats .stat-num {
            font-size: 1.4rem;
            font-weight: 700;
            color: var(--bs-primary);
            line-height: 1.2;
        }

        .category-hero-stats .stat-label {
            font-size: 0.85rem;
            color: var(--bs-text-muted);
        }

        /* ===== Section common ===== */
        .section-block {
            padding: clamp(3.5rem, 7vw, 5.5rem) 0;
        }

        .section-title-wrap {
            text-align: center;
            max-width: 640px;
            margin: 0 auto 2.5rem;
        }

        .section-title-wrap h2 {
            font-size: clamp(1.5rem, 3vw, 2rem);
            font-weight: 700;
            color: var(--bs-body-text);
            margin-bottom: 0.75rem;
            letter-spacing: 0.5px;
        }

        .section-title-wrap p {
            font-size: 1rem;
            color: var(--bs-text-secondary);
            line-height: 1.7;
        }

        .section-title-left {
            text-align: left;
            margin: 0 0 2rem;
        }

        /* ===== Feature Cards ===== */
        .feature-grid {
            display: grid;
            grid-template-columns: repeat(12, 1fr);
            gap: 1.5rem;
        }

        .feature-card {
            background: #fff;
            border-radius: var(--bs-radius-lg);
            box-shadow: var(--bs-shadow);
            padding: 1.75rem;
            transition: transform .25s ease, box-shadow .25s ease;
            border: 1px solid rgba(226, 232, 240, 0.6);
            position: relative;
            overflow: hidden;
        }

        .feature-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--bs-shadow-hover);
            border-color: var(--bs-primary-light);
        }

        .feature-card.wide {
            grid-column: span 7;
        }

        .feature-card.normal {
            grid-column: span 5;
        }

        .feature-card.full {
            grid-column: span 12;
        }

        .feature-icon {
            width: 48px;
            height: 48px;
            background: var(--bs-primary-light);
            border-radius: 10px;
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--bs-primary);
            font-size: 1.4rem;
            margin-bottom: 1rem;
            transition: all .25s ease;
        }

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

        .feature-card h3 {
            font-size: 1.15rem;
            font-weight: 700;
            color: var(--bs-body-text);
            margin-bottom: 0.5rem;
        }

        .feature-card p {
            font-size: 0.95rem;
            color: var(--bs-text-secondary);
            line-height: 1.7;
            margin-bottom: 0;
        }

        .feature-card .feature-link {
            display: inline-block;
            margin-top: 0.9rem;
            font-size: 0.87rem;
            font-weight: 600;
            color: var(--bs-primary);
        }

        .feature-card .feature-link:hover {
            color: var(--bs-primary-dark);
        }

        .feature-card.wide .feature-inner {
            display: flex;
            gap: 1.5rem;
            align-items: center;
        }

        .feature-card.wide .feature-body {
            flex: 1.4;
        }

        .feature-card.wide .feature-side {
            flex: 1;
            border-radius: 10px;
            overflow: hidden;
            min-height: 120px;
            background: linear-gradient(135deg, #E8F2FB, #F0F7FE);
            display: flex;
            align-items: center;
            justify-content: center;
        }

        .feature-card.wide .feature-side img {
            width: 100%;
            height: 130px;
            object-fit: cover;
        }

        /* ===== Game Table ===== */
        .game-table-section {
            background: #fff;
            border-radius: var(--bs-radius-lg);
            box-shadow: var(--bs-shadow);
            padding: 2rem;
            overflow: hidden;
        }

        .game-table-section .table {
            margin-bottom: 0;
        }

        .game-table-section .table thead th {
            font-size: 0.85rem;
            font-weight: 600;
            color: var(--bs-text-muted);
            border-bottom: 2px solid var(--bs-border);
            padding: 0.9rem 1rem;
            text-transform: none;
            letter-spacing: 0;
        }

        .game-table-section .table tbody td {
            padding: 1.1rem 1rem;
            border-bottom: 1px solid #F1F5F9;
            font-size: 0.95rem;
            color: var(--bs-text-secondary);
            vertical-align: middle;
        }

        .game-table-section .table tbody tr:hover {
            background: var(--bs-primary-soft);
        }

        .game-table-section .table tbody tr:last-child td {
            border-bottom: none;
        }

        .game-name-cell {
            display: flex;
            align-items: center;
            gap: 0.8rem;
        }

        .game-avatar {
            width: 40px;
            height: 40px;
            border-radius: 8px;
            background: var(--bs-primary-light);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--bs-primary);
            font-weight: 700;
            font-size: 0.9rem;
        }

        .game-name-cell .game-name {
            font-weight: 600;
            color: var(--bs-body-text);
        }

        .game-table-section .table .btn-sm {
            min-width: 80px;
            padding: 0.4rem 0.9rem;
            font-size: 0.82rem;
        }

        .game-type-badge {
            background: var(--bs-primary-light);
            color: var(--bs-primary);
            border-radius: 999px;
            padding: 0.25rem 0.75rem;
            font-size: 0.78rem;
            font-weight: 600;
            display: inline-block;
        }

        .game-score {
            font-weight: 700;
            color: var(--bs-accent);
            font-size: 0.95rem;
        }

        .game-table-note {
            text-align: center;
            color: var(--bs-text-muted);
            font-size: 0.85rem;
            margin-top: 1rem;
            padding-top: 1rem;
            border-top: 1px solid #F1F5F9;
        }

        /* ===== Compare ===== */
        .compare-section {
            background: var(--bs-primary-soft);
            padding: clamp(3.5rem, 7vw, 5.5rem) 0;
        }

        .compare-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 1.5rem;
            align-items: stretch;
        }

        .compare-card {
            background: #fff;
            border-radius: var(--bs-radius-lg);
            box-shadow: var(--bs-shadow);
            padding: 2rem 1.75rem;
            border: 1px solid transparent;
        }

        .compare-card.bad {
            background: #F1F5F9;
            box-shadow: none;
        }

        .compare-card.good {
            background: var(--bs-primary-soft);
            border-left: 3px solid var(--bs-primary);
            box-shadow: var(--bs-shadow);
        }

        .compare-card h3 {
            font-size: 1.15rem;
            font-weight: 700;
            margin-bottom: 1.1rem;
            display: flex;
            align-items: center;
            gap: 0.5rem;
        }

        .compare-card.bad h3 {
            color: #64748B;
        }

        .compare-card.good h3 {
            color: var(--bs-primary);
        }

        .compare-icon {
            font-size: 1.1rem;
        }

        .compare-card.bad .compare-icon {
            color: #EF4444;
        }

        .compare-card.good .compare-icon {
            color: var(--bs-primary);
        }

        .compare-list {
            list-style: none;
            padding: 0;
            margin: 0;
        }

        .compare-list li {
            display: flex;
            align-items: flex-start;
            gap: 0.6rem;
            padding: 0.45rem 0;
            font-size: 0.95rem;
            color: var(--bs-text-secondary);
            line-height: 1.6;
        }

        .compare-list li i {
            font-size: 1rem;
            margin-top: 0.15rem;
        }

        .compare-list li .bi-x-circle {
            color: #EF4444;
        }

        .compare-list li .bi-check-circle {
            color: var(--bs-primary);
        }

        .compare-footer-note {
            font-size: 0.85rem;
            color: var(--bs-text-muted);
            margin-top: 1rem;
            padding-top: 0.75rem;
            border-top: 1px solid rgba(148, 163, 184, 0.2);
        }

        .compare-card.good .compare-footer-note {
            color: var(--bs-primary-dark);
            border-top-color: rgba(30, 111, 178, 0.15);
        }

        /* ===== Scenes / Steps ===== */
        .scenes-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
            gap: 1.5rem;
        }

        .scene-card {
            background: #fff;
            border-radius: var(--bs-radius-md);
            box-shadow: var(--bs-shadow);
            padding: 1.5rem 1.25rem;
            position: relative;
            transition: transform .2s ease, box-shadow .2s ease;
        }

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

        .scene-card .scene-num {
            position: absolute;
            top: 1rem;
            right: 1.1rem;
            font-size: 2rem;
            font-weight: 700;
            color: var(--bs-primary-light);
            line-height: 1;
            font-family: inherit;
        }

        .scene-card .scene-icon {
            width: 44px;
            height: 44px;
            background: var(--bs-primary-light);
            border-radius: 10px;
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--bs-primary);
            font-size: 1.2rem;
            margin-bottom: 0.8rem;
        }

        .scene-card h3 {
            font-size: 1rem;
            font-weight: 700;
            color: var(--bs-body-text);
            margin-bottom: 0.4rem;
        }

        .scene-card p {
            font-size: 0.9rem;
            color: var(--bs-text-secondary);
            line-height: 1.6;
            margin-bottom: 0;
        }

        /* ===== Journey ===== */
        .journey-section {
            background: #fff;
            border-top: 1px solid var(--bs-border);
            border-bottom: 1px solid var(--bs-border);
        }

        .journey-steps {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 1.5rem;
            counter-reset: step;
        }

        .journey-step {
            text-align: center;
            position: relative;
            padding: 1rem 0.75rem;
        }

        .journey-step::after {
            content: "";
            position: absolute;
            top: 1.8rem;
            left: calc(50% + 2rem);
            width: calc(100% - 4rem);
            height: 2px;
            background: var(--bs-primary-light);
            display: none;
        }

        .journey-step:last-child::after {
            display: none;
        }

        .journey-dot {
            width: 56px;
            height: 56px;
            border-radius: 50%;
            background: var(--bs-primary-light);
            color: var(--bs-primary);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.4rem;
            font-weight: 700;
            margin: 0 auto 0.9rem;
        }

        .journey-step h3 {
            font-size: 1rem;
            font-weight: 700;
            color: var(--bs-body-text);
            margin-bottom: 0.35rem;
        }

        .journey-step p {
            font-size: 0.87rem;
            color: var(--bs-text-secondary);
            line-height: 1.55;
            margin-bottom: 0;
        }

        /* ===== FAQ ===== */
        .faq-section {
            background: #fff;
        }

        .accordion {
            max-width: 800px;
            margin: 0 auto;
        }

        .accordion-item {
            border: 1px solid var(--bs-border);
            border-radius: var(--bs-radius-md) !important;
            box-shadow: 0 2px 10px rgba(0, 0, 0, 0.04);
            margin-bottom: 0.75rem;
            overflow: hidden;
            transition: border-color .2s ease, background .2s ease;
        }

        .accordion-item:last-child {
            margin-bottom: 0;
        }

        .accordion-item:has(.accordion-button:not(.collapsed)) {
            border-color: var(--bs-primary);
            background: #F8FBFF;
        }

        .accordion-button {
            background: #fff;
            color: var(--bs-body-text);
            font-weight: 600;
            font-size: 0.98rem;
            padding: 1.15rem 1.3rem;
            border: none;
            box-shadow: none;
            transition: background .2s ease;
        }

        .accordion-button:not(.collapsed) {
            background: #F8FBFF;
            color: var(--bs-primary);
            box-shadow: none;
        }

        .accordion-button:focus {
            box-shadow: 0 0 0 3px rgba(30, 111, 178, 0.12);
            border-color: var(--bs-primary);
        }

        .accordion-button::after {
            background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' fill='%231E6FB2' viewBox='0 0 16 16'%3E%3Cpath d='M8 11L4 7h8l-4 4z'/%3E%3C/svg%3E");
            background-size: contain;
            transition: transform .2s ease;
        }

        .accordion-button:not(.collapsed)::after {
            transform: rotate(180deg);
            background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' fill='%231E6FB2' viewBox='0 0 16 16'%3E%3Cpath d='M8 11L4 7h8l-4 4z'/%3E%3C/svg%3E");
        }

        .accordion-body {
            padding: 0 1.3rem 1.2rem;
            color: var(--bs-text-secondary);
            font-size: 0.95rem;
            line-height: 1.75;
            background: transparent;
        }

        /* ===== CTA Banner ===== */
        .cta-banner {
            background: var(--bs-primary-light);
            border-radius: var(--bs-radius-lg);
            padding: 2.5rem 2.5rem;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 2rem;
            flex-wrap: wrap;
            position: relative;
            overflow: hidden;
        }

        .cta-banner::before {
            content: "";
            position: absolute;
            top: -40px;
            right: -20px;
            width: 180px;
            height: 180px;
            background: radial-gradient(circle, rgba(30, 111, 178, 0.08), transparent 70%);
            border-radius: 50%;
        }

        .cta-banner h2 {
            font-size: clamp(1.3rem, 2.5vw, 1.75rem);
            font-weight: 700;
            color: var(--bs-body-text);
            margin-bottom: 0.5rem;
        }

        .cta-banner p {
            font-size: 0.95rem;
            color: var(--bs-text-secondary);
            margin-bottom: 0;
        }

        .cta-banner .btn {
            position: relative;
            z-index: 2;
            flex-shrink: 0;
        }

        /* ===== Footer ===== */
        .site-footer {
            background: var(--bs-footer-bg);
            color: #94A3B8;
            padding: 4rem 0 0;
            font-size: 0.9rem;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1.4fr;
            gap: 2.5rem;
            padding-bottom: 2.5rem;
        }

        .footer-brand {
            display: flex;
            align-items: center;
            gap: 0.6rem;
            margin-bottom: 1rem;
        }

        .footer-brand .logo-icon {
            background: rgba(255, 255, 255, 0.08);
            color: #fff;
        }

        .footer-brand .logo-text {
            color: #fff;
            font-size: 1.1rem;
        }

        .footer-desc {
            font-size: 0.88rem;
            line-height: 1.7;
            color: #94A3B8;
            margin-bottom: 1.2rem;
            max-width: 320px;
        }

        .footer-social {
            display: flex;
            gap: 0.6rem;
        }

        .footer-social a {
            width: 36px;
            height: 36px;
            border-radius: 8px;
            background: rgba(255, 255, 255, 0.06);
            display: flex;
            align-items: center;
            justify-content: center;
            color: #94A3B8;
            font-size: 0.95rem;
            transition: all .2s ease;
        }

        .footer-social a:hover {
            background: var(--bs-primary);
            color: #fff;
        }

        .footer-title {
            color: #fff;
            font-size: 0.95rem;
            font-weight: 600;
            margin-bottom: 1rem;
        }

        .footer-links {
            list-style: none;
            padding: 0;
            margin: 0;
        }

        .footer-links li {
            margin-bottom: 0.15rem;
        }

        .footer-links a {
            color: #94A3B8;
            font-size: 0.875rem;
            line-height: 2.2;
            transition: all .2s ease;
            display: inline-block;
        }

        .footer-links a:hover {
            color: #fff;
            transform: translateX(-2px);
        }

        .footer-contact {
            list-style: none;
            padding: 0;
            margin: 0;
        }

        .footer-contact li {
            display: flex;
            align-items: flex-start;
            gap: 0.6rem;
            margin-bottom: 0.6rem;
            font-size: 0.875rem;
            line-height: 1.6;
            color: #94A3B8;
        }

        .footer-contact li i {
            color: var(--bs-primary);
            font-size: 0.95rem;
            margin-top: 0.1rem;
        }

        .footer-bottom {
            border-top: 1px solid #1E293B;
            padding: 1.6rem 0;
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 0.5rem;
            font-size: 0.85rem;
            color: #64748B;
        }

        .footer-bottom a {
            color: #64748B;
        }

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

        /* ===== Responsive ===== */
        @media (max-width: 992px) {
            .navbar-toggler {
                display: block;
            }

            .nav-wrapper {
                position: absolute;
                top: 100%;
                left: 0;
                right: 0;
                background: #fff;
                flex-direction: column;
                align-items: stretch;
                padding: 1rem 1.25rem;
                box-shadow: 0 10px 30px rgba(0, 0, 0, 0.08);
                border-radius: 0 0 16px 16px;
                display: none;
                z-index: 999;
            }

            .nav-wrapper.show {
                display: flex;
            }

            .nav-menu {
                flex-direction: column;
                align-items: stretch;
                gap: 0.4rem;
            }

            .nav-link {
                padding: 0.8rem 1rem;
                min-height: 44px;
                border-radius: 10px;
            }

            .nav-cta {
                margin-top: 0.8rem;
            }

            .nav-cta .btn {
                width: 100%;
                min-height: 44px;
            }

            .category-hero-inner {
                flex-direction: column;
                gap: 2rem;
            }

            .category-hero-text {
                max-width: 100%;
            }

            .category-hero-visual img {
                height: 240px;
            }

            .compare-grid {
                grid-template-columns: 1fr;
            }

            .journey-steps {
                grid-template-columns: 1fr 1fr;
            }

            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 2rem;
            }
        }

        @media (max-width: 768px) {
            .feature-grid {
                grid-template-columns: 1fr;
            }

            .feature-card.wide,
            .feature-card.normal,
            .feature-card.full {
                grid-column: span 1;
            }

            .feature-card.wide .feature-inner {
                flex-direction: column;
            }

            .feature-card.wide .feature-side {
                width: 100%;
            }

            .journey-steps {
                grid-template-columns: 1fr;
            }

            .game-table-section {
                padding: 1.25rem;
                overflow-x: auto;
            }

            .game-table-section .table {
                min-width: 560px;
            }

            .cta-banner {
                padding: 2rem 1.5rem;
                flex-direction: column;
                text-align: center;
            }

            .cta-banner .btn {
                width: 100%;
            }

            .footer-grid {
                grid-template-columns: 1fr;
                gap: 1.75rem;
            }

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

            .site-header {
                height: 60px;
            }

            .category-hero {
                padding: 2.5rem 0 3.5rem;
            }

            .category-hero-stats {
                gap: 1.5rem;
            }

            .section-block {
                padding: 3rem 0;
            }
        }

        @media (max-width: 520px) {
            .container {
                padding-left: 1rem;
                padding-right: 1rem;
            }

            .logo-text {
                font-size: 1.05rem;
            }

            .logo-badge {
                display: none;
            }

            .category-hero h1 {
                font-size: 1.6rem;
            }

            .category-hero-text p {
                font-size: 0.95rem;
            }

            .category-hero-visual img {
                height: 200px;
            }

            .category-hero-stats {
                gap: 1rem;
            }

            .category-hero-stats .stat-num {
                font-size: 1.15rem;
            }

            .section-title-wrap h2 {
                font-size: 1.35rem;
            }

            .scenes-grid {
                grid-template-columns: 1fr;
            }

            .compare-card {
                padding: 1.5rem;
            }

            .btn {
                min-width: 120px;
                padding: 0.65rem 1.1rem;
                font-size: 0.9rem;
            }
        }

/* roulang page: article */
:root {
  --bs-primary: #1E6FB2;
  --bs-primary-dark: #175A8F;
  --bs-primary-light: #E8F2FB;
  --bs-primary-soft: #F0F7FE;
  --bs-accent: #F59E0B;
  --bs-accent-light: #FEF3C7;
  --bs-body-text: #1E293B;
  --bs-text-secondary: #475569;
  --bs-text-muted: #94A3B8;
  --bs-border: #E2E8F0;
  --bs-body-bg: #F8FAFC;
  --bs-card-bg: #FFFFFF;
  --bs-footer-bg: #0F172A;
  --radius-card: 16px;
  --radius-small: 12px;
  --radius-btn: 10px;
  --radius-input: 8px;
  --shadow-card: 0 4px 20px rgba(30,111,178,0.06);
  --shadow-hover: 0 8px 30px rgba(30,111,178,0.12);
  --shadow-float: 0 8px 30px rgba(30,111,178,0.1);
  --font-sans: -apple-system, "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
}
* { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: var(--font-sans);
  font-size: 1rem;
  line-height: 1.75;
  color: var(--bs-body-text);
  background: var(--bs-body-bg);
  -webkit-font-smoothing: antialiased;
}
a { color: var(--bs-primary); text-decoration: none; transition: color .2s ease; }
a:hover { color: var(--bs-primary-dark); }
img { max-width: 100%; height: auto; }
.container { max-width: 1200px; padding-left: 1.25rem; padding-right: 1.25rem; }
@media (max-width: 767px) {
  .container { padding-left: 1rem; padding-right: 1rem; }
}
.btn {
  font-weight: 600;
  font-size: .95rem;
  padding: .75rem 1.5rem;
  border-radius: var(--radius-btn);
  transition: all .2s ease;
  min-width: 140px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: .4rem;
  text-transform: none;
}
.btn-primary {
  background: var(--bs-primary);
  border-color: var(--bs-primary);
  color: #fff;
  box-shadow: 0 2px 8px rgba(30,111,178,0.25);
}
.btn-primary:hover, .btn-primary:focus {
  background: var(--bs-primary-dark);
  border-color: var(--bs-primary-dark);
  color: #fff;
  transform: translateY(-2px);
  box-shadow: 0 6px 18px rgba(30,111,178,0.3);
}
.btn-primary:active {
  transform: translateY(0);
  background: var(--bs-primary);
}
.btn-outline {
  background: transparent;
  border: 1px solid var(--bs-primary);
  color: var(--bs-primary);
  box-shadow: none;
}
.btn-outline:hover {
  background: var(--bs-primary-light);
  color: var(--bs-primary-dark);
  border-color: var(--bs-primary-dark);
}
.btn-accent {
  background: var(--bs-accent);
  border-color: var(--bs-accent);
  color: #1E293B;
  box-shadow: 0 2px 10px rgba(245,158,11,0.3);
}
.btn-accent:hover {
  background: #d97706;
  border-color: #d97706;
  color: #fff;
  box-shadow: 0 4px 16px rgba(245,158,11,0.45);
  transform: translateY(-2px);
}
.site-header {
  position: sticky;
  top: 0;
  z-index: 1030;
  background: #fff;
  border-bottom: 1px solid var(--bs-border);
  box-shadow: 0 1px 4px rgba(15,23,42,0.04);
}
.navbar-main {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
  gap: 1rem;
}
.brand-logo {
  display: inline-flex;
  align-items: center;
  gap: .65rem;
  flex-shrink: 0;
  text-decoration: none;
}
.logo-icon {
  width: 44px;
  height: 44px;
  border-radius: var(--radius-small);
  background: var(--bs-primary-light);
  color: var(--bs-primary);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  transition: all .2s ease;
}
.logo-icon svg { width: 26px; height: 26px; }
.brand-logo:hover .logo-icon {
  background: var(--bs-primary);
  color: #fff;
}
.logo-text {
  font-size: 1.2rem;
  font-weight: 700;
  color: var(--bs-body-text);
  display: inline-flex;
  align-items: center;
  gap: .5rem;
}
.logo-badge {
  font-size: .65rem;
  font-weight: 600;
  background: var(--bs-accent-light);
  color: #b45309;
  border-radius: 999px;
  padding: .15rem .55rem;
  border: 1px solid #fde68a;
}
.nav-wrapper {
  display: flex;
  align-items: center;
  gap: 1rem;
  flex: 1;
  justify-content: flex-end;
}
.nav-menu {
  display: flex;
  align-items: center;
  list-style: none;
  margin: 0;
  padding: 0;
  gap: .15rem;
}
.nav-item { margin: 0; }
.nav-link {
  display: block;
  font-size: .95rem;
  font-weight: 500;
  color: var(--bs-text-secondary);
  padding: .55rem 1.2rem;
  border-radius: 8px;
  transition: all .2s ease;
  text-decoration: none;
}
.nav-link:hover {
  color: var(--bs-primary);
  background: var(--bs-primary-soft);
}
.nav-link.active {
  color: var(--bs-primary);
  background: var(--bs-primary-light);
  font-weight: 600;
}
.nav-cta { flex-shrink: 0; }
.nav-cta .btn { min-width: auto; padding: .55rem 1.25rem; }
.navbar-toggler {
  display: none;
  background: none;
  border: 1px solid var(--bs-border);
  border-radius: var(--radius-input);
  width: 44px;
  height: 44px;
  font-size: 1.25rem;
  color: var(--bs-text-secondary);
  cursor: pointer;
  align-items: center;
  justify-content: center;
}
@media (max-width: 991px) {
  .navbar-toggler { display: inline-flex; }
  .nav-wrapper {
    position: absolute;
    top: 72px;
    left: 0;
    right: 0;
    background: #fff;
    padding: 1rem 1.25rem 1.25rem;
    border-bottom: 1px solid var(--bs-border);
    box-shadow: 0 12px 30px rgba(15,23,42,0.1);
    flex-direction: column;
    align-items: stretch;
    display: none;
  }
  .nav-wrapper.show { display: flex; }
  .nav-menu {
    flex-direction: column;
    gap: .5rem;
  }
  .nav-link {
    padding: .8rem 1rem;
    min-height: 44px;
    display: flex;
    align-items: center;
    font-size: 1rem;
  }
  .nav-cta { margin-top: .75rem; }
  .nav-cta .btn { width: 100%; }
}
.breadcrumb-bar {
  background: #F8FAFC;
  border-bottom: 1px solid var(--bs-border);
  min-height: 48px;
  display: flex;
  align-items: center;
}
.breadcrumb {
  margin: 0;
  padding: 0;
  font-size: .875rem;
  --bs-breadcrumb-divider: '›';
}
.breadcrumb-item a {
  color: var(--bs-primary);
  text-decoration: none;
  font-weight: 500;
}
.breadcrumb-item a:hover { color: var(--bs-primary-dark); }
.breadcrumb-item.active {
  color: var(--bs-text-muted);
  max-width: 320px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.article-page {
  padding: 3rem 0 4rem;
}
.article-header {
  max-width: 780px;
  margin: 0 auto 1.5rem;
}
.article-header h1 {
  font-size: 2rem;
  font-weight: 700;
  line-height: 1.35;
  color: var(--bs-body-text);
  margin-bottom: 1rem;
}
.article-meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 1rem;
  font-size: .875rem;
  color: var(--bs-text-muted);
}
.meta-badge {
  background: var(--bs-primary-light);
  color: var(--bs-primary);
  font-weight: 600;
  padding: .3rem .85rem;
  border-radius: 999px;
  font-size: .8rem;
}
.meta-date, .meta-source { display: inline-flex; align-items: center; gap: .35rem; }
.article-divider {
  max-width: 780px;
  margin: 1.25rem auto 2rem;
  border-bottom: 1px solid var(--bs-border);
  position: relative;
}
.article-divider::after {
  content: '';
  position: absolute;
  left: 0;
  bottom: -1px;
  width: 60px;
  height: 3px;
  background: var(--bs-primary);
  border-radius: 999px;
}
.article-body-wrap {
  max-width: 780px;
  margin: 0 auto;
  background: #fff;
  border-radius: var(--radius-card);
  box-shadow: var(--shadow-card);
  padding: 2.5rem;
}
.article-body {
  font-size: 1.05rem;
  line-height: 1.85;
  color: #334155;
}
.article-body p { margin-bottom: 1.5rem; }
.article-body h2, .article-body h3, .article-body h4 {
  font-weight: 700;
  color: var(--bs-body-text);
  margin-top: 2rem;
  margin-bottom: 1rem;
}
.article-body h4 { font-size: 1.1rem; }
.article-body h3 { font-size: 1.2rem; }
.article-body img {
  border-radius: 8px;
  max-width: 100%;
  height: auto;
  margin: 1.25rem 0;
  box-shadow: 0 4px 20px rgba(15,23,42,0.08);
}
.article-body blockquote {
  border-left: 4px solid var(--bs-primary);
  background: #F8FAFC;
  padding: 1rem 1.25rem;
  border-radius: 0 8px 8px 0;
  color: var(--bs-text-secondary);
  margin: 1.5rem 0;
}
.article-body blockquote p { margin-bottom: 0; }
.article-body ul, .article-body ol { padding-left: 1.5rem; margin-bottom: 1.5rem; }
.article-body ul li::marker { color: var(--bs-primary); }
.article-body ol li::marker { color: var(--bs-primary); font-weight: 600; }
.article-body code {
  background: #F1F5F9;
  padding: .15rem .45rem;
  border-radius: 4px;
  font-size: .9em;
  color: #be123c;
}
.article-body pre {
  background: #0F172A;
  color: #E2E8F0;
  padding: 1.25rem;
  border-radius: 12px;
  overflow-x: auto;
  margin: 1.5rem 0;
}
.article-body pre code { background: none; color: inherit; padding: 0; }
.article-body table {
  width: 100%;
  border-collapse: collapse;
  margin: 1.5rem 0;
  background: #fff;
  border-radius: 8px;
  overflow: hidden;
}
.article-body table th, .article-body table td {
  border: 1px solid var(--bs-border);
  padding: .75rem 1rem;
  font-size: .925rem;
}
.article-body table th { background: var(--bs-primary-soft); font-weight: 600; color: var(--bs-body-text); }
.article-body a { text-decoration: underline; text-underline-offset: 3px; }
.article-empty {
  text-align: center;
  padding: 4rem 1rem;
}
.empty-icon {
  font-size: 3rem;
  color: var(--bs-text-muted);
  margin-bottom: 1rem;
}
.article-empty h3 {
  font-size: 1.25rem;
  font-weight: 700;
  margin-bottom: .5rem;
}
.article-empty p { color: var(--bs-text-muted); margin-bottom: 1.5rem; }
.article-tags {
  max-width: 780px;
  margin: 2rem auto 0;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: .5rem;
}
.tag-label {
  font-size: .875rem;
  font-weight: 600;
  color: var(--bs-text-secondary);
  margin-right: .25rem;
}
.tag-pill {
  display: inline-block;
  background: var(--bs-primary-light);
  color: var(--bs-primary);
  font-size: .8rem;
  font-weight: 500;
  padding: .3rem .8rem;
  border-radius: 999px;
  text-decoration: none;
  transition: all .2s ease;
}
.tag-pill:hover {
  background: var(--bs-primary);
  color: #fff;
}
.related-section {
  max-width: 780px;
  margin: 3rem auto 0;
}
.section-head h2 {
  font-size: 1.5rem;
  font-weight: 700;
  margin-bottom: .25rem;
}
.section-sub {
  color: var(--bs-text-muted);
  font-size: .925rem;
  margin-bottom: 1.5rem;
}
.related-card {
  display: flex;
  align-items: center;
  background: #fff;
  border-radius: var(--radius-small);
  box-shadow: 0 2px 10px rgba(15,23,42,0.05);
  overflow: hidden;
  min-height: 90px;
  transition: all .2s ease;
  text-decoration: none;
  color: inherit;
  border: 1px solid transparent;
}
.related-card:hover {
  box-shadow: var(--shadow-hover);
  transform: translateY(-2px);
  color: inherit;
  border-color: var(--bs-primary);
}
.related-card img {
  width: 150px;
  height: 90px;
  object-fit: cover;
  flex-shrink: 0;
}
.related-body { padding: .75rem 1.1rem; }
.related-body h3 {
  font-size: .975rem;
  font-weight: 600;
  color: var(--bs-body-text);
  margin-bottom: .3rem;
  line-height: 1.5;
  overflow: hidden;
  white-space: nowrap;
  text-overflow: ellipsis;
}
.related-body p {
  font-size: .85rem;
  color: var(--bs-text-muted);
  margin: 0;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.article-return {
  max-width: 780px;
  margin: 2.5rem auto 0;
}
.back-link {
  display: inline-flex;
  align-items: center;
  gap: .5rem;
  color: var(--bs-text-secondary);
  font-weight: 500;
  font-size: .925rem;
  text-decoration: none;
  transition: all .2s ease;
}
.back-link:hover {
  color: var(--bs-primary);
  transform: translateX(-4px);
}
.article-cta {
  max-width: 1200px;
  margin: 4rem auto 0;
  background: var(--bs-primary-soft);
  border-radius: var(--radius-card);
  padding: 2.5rem 2rem;
}
.cta-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 2rem;
  flex-wrap: wrap;
}
.cta-text h2 {
  font-size: 1.5rem;
  font-weight: 700;
  margin-bottom: .25rem;
}
.cta-text p { color: var(--bs-text-secondary); margin-bottom: 0; }
.site-footer {
  background: var(--bs-footer-bg);
  color: #94A3B8;
  padding: 4rem 0 2rem;
  margin-top: 5rem;
}
.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1.5fr;
  gap: 2rem;
  margin-bottom: 2.5rem;
}
.footer-brand {
  display: flex;
  align-items: center;
  gap: .65rem;
  margin-bottom: 1rem;
}
.footer-brand .logo-icon {
  background: rgba(255,255,255,0.1);
  color: #fff;
  width: 40px;
  height: 40px;
}
.footer-brand .logo-text {
  color: #fff;
  font-size: 1.1rem;
  font-weight: 700;
}
.footer-desc {
  font-size: .875rem;
  line-height: 1.7;
  margin-bottom: 1.25rem;
  max-width: 300px;
}
.footer-social {
  display: flex;
  gap: .65rem;
}
.footer-social a {
  width: 36px;
  height: 36px;
  border-radius: 8px;
  background: rgba(255,255,255,0.06);
  color: #94A3B8;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  text-decoration: none;
  transition: all .2s ease;
  font-size: .95rem;
}
.footer-social a:hover {
  background: var(--bs-primary);
  color: #fff;
  transform: translateY(-2px);
}
.footer-title {
  color: #fff;
  font-size: .95rem;
  font-weight: 600;
  margin-bottom: 1.1rem;
}
.footer-links, .footer-contact {
  list-style: none;
  margin: 0;
  padding: 0;
}
.footer-links li { margin-bottom: .35rem; }
.footer-links a {
  color: #94A3B8;
  font-size: .875rem;
  text-decoration: none;
  transition: all .2s ease;
  display: inline-block;
}
.footer-links a:hover {
  color: #fff;
  transform: translateX(2px);
}
.footer-contact li {
  font-size: .875rem;
  line-height: 2.2;
  display: flex;
  align-items: center;
  gap: .6rem;
}
.footer-contact li i { color: var(--bs-primary-light); }
.footer-bottom {
  border-top: 1px solid #1E293B;
  padding-top: 1.5rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: .75rem;
  font-size: .85rem;
  color: #64748B;
}
.footer-bottom a { color: #94A3B8; text-decoration: none; }
.footer-bottom a:hover { color: #fff; }
@media (max-width: 991px) {
  .footer-grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 767px) {
  .article-page { padding: 2rem 0 3rem; }
  .article-header h1 { font-size: 1.6rem; }
  .article-body-wrap { padding: 1.5rem; }
  .article-body { font-size: 1rem; line-height: 1.7; }
  .related-card img { width: 120px; }
  .article-cta { padding: 2rem 1.25rem; }
  .cta-inner { flex-direction: column; align-items: flex-start; }
  .cta-inner .btn { width: 100%; }
}
@media (max-width: 575px) {
  .article-meta { gap: .6rem; }
  .related-card img { width: 110px; }
  .related-body h3 {
    white-space: normal;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
  }
  .footer-grid { grid-template-columns: 1fr; }
  .footer-bottom { flex-direction: column; text-align: center; }
  .btn { min-width: 0; }
}

/* roulang page: category2 */
:root {
  --primary: #1E6FB2;
  --primary-dark: #175A8F;
  --primary-light: #E8F2FB;
  --primary-soft: #F0F7FE;
  --accent: #F59E0B;
  --accent-light: #FEF3C7;
  --body-text: #1E293B;
  --text-secondary: #475569;
  --text-muted: #94A3B8;
  --border: #E2E8F0;
  --body-bg: #F8FAFC;
  --card-bg: #FFFFFF;
  --footer-bg: #0F172A;
  --radius-lg: 16px;
  --radius-md: 12px;
  --radius-sm: 8px;
  --shadow-card: 0 4px 20px rgba(30, 111, 178, 0.06);
  --shadow-hover: 0 8px 30px rgba(30, 111, 178, 0.12);
  --shadow-float: 0 8px 30px rgba(30, 111, 178, 0.1);
  --transition: all 0.25s ease;
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: -apple-system, "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
  background-color: var(--body-bg);
  color: var(--body-text);
  line-height: 1.75;
  font-size: 1rem;
  margin: 0;
  -webkit-font-smoothing: antialiased;
}

a {
  color: inherit;
  text-decoration: none;
  transition: color 0.2s ease;
}

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

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

button {
  border: none;
  background: none;
  cursor: pointer;
}

.container {
  max-width: 1200px;
  padding-left: 1.25rem;
  padding-right: 1.25rem;
  margin: 0 auto;
}

/* Header */
.site-header {
  background: #ffffff;
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: 0;
  z-index: 1000;
}

.navbar-main {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
  gap: 1rem;
}

.brand-logo {
  display: flex;
  align-items: center;
  gap: 0.65rem;
  flex-shrink: 0;
}

.logo-icon {
  width: 40px;
  height: 40px;
  border-radius: 10px;
  background: var(--primary);
  color: #fff;
  display: inline-flex;
  align-items: center;
  justify-content: center;
}

.logo-icon svg {
  width: 24px;
  height: 24px;
}

.logo-text {
  font-size: 1.3rem;
  font-weight: 700;
  color: var(--primary);
  letter-spacing: 0.5px;
  line-height: 1.2;
}

.logo-badge {
  display: inline-block;
  background: var(--accent);
  color: #1E293B;
  font-size: 0.7rem;
  font-weight: 600;
  padding: 0.1rem 0.5rem;
  border-radius: 999px;
  margin-left: 0.3rem;
  vertical-align: middle;
}

.navbar-toggler {
  display: none;
  font-size: 1.6rem;
  color: var(--body-text);
  line-height: 1;
  padding: 0.35rem 0.5rem;
  border-radius: 8px;
}

.navbar-toggler:hover {
  color: var(--primary);
}

.nav-wrapper {
  display: flex;
  align-items: center;
  gap: 1.5rem;
}

.nav-menu {
  display: flex;
  align-items: center;
  list-style: none;
  margin: 0;
  padding: 0;
  gap: 0.25rem;
}

.nav-item {
  margin: 0;
}

.nav-link {
  display: inline-block;
  padding: 0.6rem 1.2rem;
  color: var(--text-secondary);
  font-size: 0.95rem;
  font-weight: 500;
  border-radius: 8px;
  transition: var(--transition);
}

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

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

.nav-cta {
  flex-shrink: 0;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-weight: 600;
  border-radius: 10px;
  padding: 0.75rem 1.5rem;
  font-size: 0.95rem;
  line-height: 1.4;
  transition: var(--transition);
  min-width: 140px;
}

.btn-primary {
  background: var(--primary);
  color: #fff;
  border: none;
  box-shadow: 0 2px 8px rgba(30, 111, 178, 0.25);
}

.btn-primary:hover {
  background: var(--primary-dark);
  color: #fff;
  transform: translateY(-2px);
  box-shadow: 0 6px 18px rgba(30, 111, 178, 0.3);
}

.btn-primary:active {
  transform: translateY(0);
}

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

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

.btn-accent {
  background: var(--accent);
  color: #1E293B;
  border: none;
}

.btn-accent:hover {
  background: #d97706;
  color: #fff;
  box-shadow: 0 4px 16px rgba(245, 158, 11, 0.35);
}

/* Category Hero */
.cat-hero {
  position: relative;
  background: linear-gradient(135deg, #F0F7FE 0%, #FFFFFF 60%, #F8FAFC 100%);
  padding: 4rem 0 3.5rem;
  overflow: hidden;
}

.cat-hero::before {
  content: '';
  position: absolute;
  right: -80px;
  top: -80px;
  width: 340px;
  height: 340px;
  background: url('/assets/images/backpic/back-2.webp') no-repeat center / contain;
  opacity: 0.15;
  border-radius: 50%;
  pointer-events: none;
}

.cat-hero-inner {
  position: relative;
  max-width: 780px;
}

.cat-hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  background: var(--accent-light);
  color: #92400e;
  font-size: 0.82rem;
  font-weight: 600;
  padding: 0.3rem 1rem;
  border-radius: 999px;
  margin-bottom: 1.2rem;
}

.cat-hero-badge i {
  font-size: 0.9rem;
}

.cat-hero h1 {
  font-size: clamp(1.75rem, 3.5vw, 2.5rem);
  font-weight: 700;
  line-height: 1.25;
  color: var(--body-text);
  margin-bottom: 1rem;
  padding-left: 1rem;
  border-left: 4px solid var(--primary);
}

.cat-hero p {
  font-size: 1.05rem;
  color: var(--text-secondary);
  line-height: 1.8;
  max-width: 640px;
  margin-bottom: 1.75rem;
}

.cat-hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
}

/* Stats Panel */
.stats-section {
  padding: 3rem 0 2.5rem;
  position: relative;
  z-index: 10;
}

.stats-panel {
  background: #fff;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-float);
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  overflow: hidden;
  margin-top: -70px;
}

.stat-item {
  padding: 2rem 1.5rem;
  text-align: center;
  position: relative;
}

.stat-item:not(:last-child)::after {
  content: '';
  position: absolute;
  right: 0;
  top: 50%;
  transform: translateY(-50%);
  width: 1px;
  height: 50%;
  background: var(--border);
}

.stat-item strong {
  display: block;
  font-size: 1.75rem;
  font-weight: 700;
  color: var(--primary);
  line-height: 1.3;
  margin-bottom: 0.3rem;
}

.stat-item span {
  font-size: 0.875rem;
  color: var(--text-secondary);
}

/* Section common */
.section-padding {
  padding: 4.5rem 0;
}

.section-head {
  text-align: center;
  max-width: 720px;
  margin: 0 auto 2.5rem;
}

.section-head h2 {
  font-size: clamp(1.5rem, 3vw, 2rem);
  font-weight: 700;
  color: var(--body-text);
  line-height: 1.35;
  margin-bottom: 0.75rem;
}

.section-head p {
  color: var(--text-secondary);
  font-size: 0.95rem;
  line-height: 1.7;
}

.section-head .section-accent {
  display: inline-block;
  width: 40px;
  height: 4px;
  background: var(--accent);
  border-radius: 999px;
  margin-bottom: 1rem;
}

/* Bento Cards for dynamic types */
.dynamic-types {
  padding: 3.5rem 0 4.5rem;
}

.bento-grid {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  grid-template-areas:
    "wide wide normal"
    "normal2 normal3 normal4";
  gap: 1.5rem;
}

.bento-card {
  background: #fff;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-card);
  padding: 2rem 1.75rem;
  transition: var(--transition);
  border: 1px solid transparent;
  position: relative;
  overflow: hidden;
}

.bento-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-hover);
  border-color: var(--primary-light);
}

.bento-card.wide {
  grid-area: wide;
  display: flex;
  align-items: center;
  gap: 2rem;
  background: linear-gradient(135deg, #fff 70%, var(--primary-soft));
}

.bento-card.wide .bento-content {
  flex: 1;
}

.bento-card.wide .bento-media {
  flex-shrink: 0;
  width: 180px;
  height: 140px;
  border-radius: var(--radius-md);
  overflow: hidden;
  background: var(--primary-light);
}

.bento-card.wide .bento-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.bento-card .bento-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 48px;
  height: 48px;
  border-radius: 10px;
  background: var(--primary-light);
  color: var(--primary);
  font-size: 1.25rem;
  margin-bottom: 1rem;
  transition: var(--transition);
}

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

.bento-card h3 {
  font-size: 1.15rem;
  font-weight: 700;
  margin-bottom: 0.6rem;
  color: var(--body-text);
}

.bento-card p {
  color: var(--text-secondary);
  font-size: 0.9rem;
  line-height: 1.7;
  margin-bottom: 1rem;
}

.bento-link {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  color: var(--primary);
  font-size: 0.88rem;
  font-weight: 600;
}

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

.bento-link i {
  transition: transform 0.2s ease;
}

.bento-link:hover i {
  transform: translateX(4px);
}

/* Timeline */
.timeline-section {
  background: #fff;
  padding: 4.5rem 0;
}

.timeline-wrap {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 3rem;
  align-items: start;
}

.timeline-visual {
  position: sticky;
  top: 100px;
}

.timeline-visual img {
  width: 100%;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-card);
}

.timeline-list {
  position: relative;
  padding-left: 2rem;
}

.timeline-list::before {
  content: '';
  position: absolute;
  left: 0;
  top: 8px;
  bottom: 8px;
  width: 2px;
  background: var(--primary-light);
}

.timeline-item {
  position: relative;
  padding-bottom: 2.2rem;
  padding-left: 1.5rem;
}

.timeline-item:last-child {
  padding-bottom: 0;
}

.timeline-dot {
  position: absolute;
  left: -2rem;
  top: 6px;
  width: 14px;
  height: 14px;
  border-radius: 50%;
  background: var(--primary);
  border: 3px solid var(--primary-light);
}

.timeline-item.current .timeline-dot {
  background: var(--accent);
  box-shadow: 0 0 0 5px var(--accent-light);
}

.timeline-date {
  display: inline-block;
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--primary);
  background: var(--primary-light);
  padding: 0.2rem 0.8rem;
  border-radius: 999px;
  margin-bottom: 0.5rem;
}

.timeline-item h3 {
  font-size: 1.05rem;
  font-weight: 700;
  margin-bottom: 0.4rem;
  color: var(--body-text);
}

.timeline-item p {
  font-size: 0.9rem;
  color: var(--text-secondary);
  line-height: 1.65;
  margin-bottom: 0;
}

/* Topics */
.topics-section {
  padding: 4.5rem 0;
}

.topic-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2.5rem;
  align-items: center;
  margin-bottom: 3.5rem;
}

.topic-row:nth-child(even) .topic-media {
  order: 2;
}

.topic-media {
  overflow: hidden;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-card);
}

.topic-media img {
  width: 100%;
  height: 260px;
  object-fit: cover;
  display: block;
  transition: transform 0.4s ease;
}

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

.topic-content h2 {
  font-size: 1.5rem;
  font-weight: 700;
  margin-bottom: 0.75rem;
  color: var(--body-text);
}

.topic-content p {
  color: var(--text-secondary);
  font-size: 0.95rem;
  line-height: 1.8;
  margin-bottom: 1.25rem;
}

.topic-tag {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-bottom: 1rem;
}

.topic-tag span {
  display: inline-block;
  background: var(--primary-light);
  color: var(--primary);
  font-size: 0.78rem;
  font-weight: 600;
  padding: 0.25rem 0.75rem;
  border-radius: 999px;
}

/* Channels */
.channels-section {
  background: var(--primary-soft);
  padding: 4.5rem 0;
}

.channels-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.5rem;
}

.channel-card {
  background: #fff;
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-card);
  padding: 1.75rem 2rem;
  display: flex;
  gap: 1.25rem;
  align-items: flex-start;
  transition: var(--transition);
}

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

.channel-icon {
  width: 44px;
  height: 44px;
  flex-shrink: 0;
  border-radius: 10px;
  background: var(--primary-light);
  color: var(--primary);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 1.15rem;
}

.channel-card h3 {
  font-size: 1rem;
  font-weight: 700;
  margin-bottom: 0.35rem;
  color: var(--body-text);
}

.channel-card p {
  font-size: 0.85rem;
  color: var(--text-secondary);
  line-height: 1.6;
  margin-bottom: 0;
}

/* FAQ */
.faq-section {
  padding: 4.5rem 0;
  background: #fff;
}

.accordion {
  max-width: 800px;
  margin: 0 auto;
}

.accordion-item {
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  margin-bottom: 0.75rem;
  background: var(--card-bg);
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.04);
  overflow: hidden;
}

.accordion-item:last-child {
  margin-bottom: 0;
}

.accordion-item:has(.accordion-collapse.show) {
  border-color: var(--primary);
  background: #F8FBFF;
}

.accordion-button {
  padding: 1.1rem 1.25rem;
  font-size: 1rem;
  font-weight: 600;
  color: var(--body-text);
  background: transparent;
  border-radius: var(--radius-md);
  box-shadow: none !important;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.accordion-button:not(.collapsed) {
  color: var(--primary);
  background: transparent;
}

.accordion-button::after {
  content: '';
  display: inline-flex;
  width: 12px;
  height: 12px;
  border-right: 2px solid currentColor;
  border-bottom: 2px solid currentColor;
  transform: rotate(45deg) translateY(-3px);
  transition: transform 0.3s ease;
  background: none;
  flex-shrink: 0;
}

.accordion-button:not(.collapsed)::after {
  transform: rotate(225deg) translateY(-2px);
}

.accordion-body {
  padding: 0 1.25rem 1.25rem;
  color: var(--text-secondary);
  font-size: 0.92rem;
  line-height: 1.75;
}

.accordion-button:focus {
  box-shadow: none;
  outline: none;
}

/* CTA */
.cta-section {
  padding: 4.5rem 0;
}

.cta-box {
  background: linear-gradient(135deg, var(--primary-soft) 0%, var(--primary-light) 100%);
  border-radius: var(--radius-lg);
  padding: 3rem 2.5rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 2rem;
  flex-wrap: wrap;
  border: 1px solid rgba(30, 111, 178, 0.1);
}

.cta-box h2 {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--body-text);
  margin-bottom: 0.4rem;
}

.cta-box p {
  color: var(--text-secondary);
  margin-bottom: 0;
  font-size: 0.95rem;
}

/* Footer */
.site-footer {
  background: var(--footer-bg);
  color: #94A3B8;
  padding: 4rem 0 0;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.6fr 1fr 1fr 1.2fr;
  gap: 2.5rem;
  padding-bottom: 2.5rem;
}

.footer-brand {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  margin-bottom: 1rem;
}

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

.footer-brand .logo-text {
  color: #fff;
  font-size: 1.2rem;
}

.footer-desc {
  font-size: 0.85rem;
  line-height: 1.7;
  margin-bottom: 1.25rem;
  color: #94A3B8;
}

.footer-social {
  display: flex;
  gap: 0.6rem;
}

.footer-social a {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.08);
  color: #94A3B8;
  font-size: 0.95rem;
  transition: var(--transition);
}

.footer-social a:hover {
  background: var(--primary);
  color: #fff;
  transform: translateY(-2px);
}

.footer-title {
  color: #fff;
  font-size: 0.95rem;
  font-weight: 600;
  margin-bottom: 1rem;
}

.footer-links,
.footer-contact {
  list-style: none;
  margin: 0;
  padding: 0;
}

.footer-links li,
.footer-contact li {
  font-size: 0.875rem;
  line-height: 2.2;
  color: #94A3B8;
  transition: color 0.2s ease;
}

.footer-links li a:hover {
  color: #E2E8F0;
  padding-left: 2px;
}

.footer-contact li i {
  margin-right: 0.5rem;
  color: var(--primary);
}

.footer-bottom {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  align-items: center;
  gap: 0.75rem;
  border-top: 1px solid #1E293B;
  padding: 1.35rem 0;
  font-size: 0.85rem;
  color: #64748B;
}

.footer-bottom a {
  color: #64748B;
}

.footer-bottom a:hover {
  color: #94A3B8;
}

/* Responsive */
@media (max-width: 991.98px) {
  .navbar-toggler {
    display: block;
  }
  .nav-wrapper {
    position: absolute;
    top: 72px;
    left: 0;
    right: 0;
    background: #fff;
    box-shadow: 0 12px 24px rgba(15, 23, 42, 0.12);
    display: none;
    flex-direction: column;
    align-items: stretch;
    padding: 1rem 1.25rem;
    gap: 0.5rem;
    border-bottom: 1px solid var(--border);
  }
  .nav-wrapper.show {
    display: flex;
  }
  .nav-menu {
    flex-direction: column;
    gap: 0;
    width: 100%;
  }
  .nav-item {
    width: 100%;
  }
  .nav-link {
    display: block;
    padding: 0.9rem 1rem;
    font-size: 1rem;
    width: 100%;
  }
  .nav-cta {
    margin-top: 0.75rem;
    width: 100%;
  }
  .nav-cta .btn {
    width: 100%;
  }

  .bento-grid {
    grid-template-columns: 1fr 1fr;
    grid-template-areas:
      "wide wide"
      "normal normal"
      "normal2 normal3";
  }

  .timeline-wrap {
    grid-template-columns: 1fr;
    gap: 2rem;
  }

  .timeline-visual {
    position: static;
  }

  .topic-row,
  .topic-row:nth-child(even) {
    grid-template-columns: 1fr;
  }

  .topic-row:nth-child(even) .topic-media {
    order: 0;
  }

  .cta-box {
    flex-direction: column;
    align-items: flex-start;
    padding: 2.25rem 1.75rem;
  }

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

@media (max-width: 767.98px) {
  body {
    font-size: 0.95rem;
  }

  .container {
    padding-left: 1rem;
    padding-right: 1rem;
  }

  .cat-hero {
    padding: 2.5rem 0;
  }

  .stats-panel {
    grid-template-columns: 1fr 1fr;
    margin-top: -40px;
  }

  .stat-item {
    padding: 1.5rem 1rem;
  }

  .stat-item:nth-child(2)::after {
    display: none;
  }

  .stat-item strong {
    font-size: 1.5rem;
  }

  .bento-grid {
    grid-template-columns: 1fr;
    grid-template-areas:
      "wide"
      "normal"
      "normal2"
      "normal3";
  }

  .bento-card.wide {
    flex-direction: column;
    align-items: flex-start;
  }

  .bento-card.wide .bento-media {
    width: 100%;
    height: 160px;
  }

  .topic-media img {
    height: 200px;
  }

  .channels-grid {
    grid-template-columns: 1fr;
  }

  .channel-card {
    padding: 1.5rem;
  }

  .footer-grid {
    grid-template-columns: 1fr;
    gap: 1.75rem;
  }

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

  .cat-hero-actions .btn {
    width: 100%;
  }

  .section-padding,
  .timeline-section,
  .topics-section,
  .channels-section,
  .faq-section,
  .cta-section {
    padding: 3rem 0;
  }

  .dynamic-types {
    padding: 2.5rem 0 3.5rem;
  }
}

@media (max-width: 520px) {
  .logo-text {
    font-size: 1.05rem;
  }

  .logo-badge {
    font-size: 0.6rem;
    padding: 0.08rem 0.4rem;
  }

  .stats-panel {
    margin-top: -30px;
  }

  .bento-card {
    padding: 1.5rem 1.25rem;
  }

  .btn {
    min-width: 0;
  }
}