/* roulang page: index */
:root{
  --color-primary:#0B4B5C;
  --color-primary-light:#125E72;
  --color-secondary:#0FA396;
  --color-secondary-light:#17C4B3;
  --color-accent:#E67E30;
  --color-accent-light:#F09045;
  --color-dark:#06232C;
  --color-light:#F5F2ED;
  --color-card:#FFFFFF;
  --color-text:#22333B;
  --color-muted:#60777E;
  --color-border:#E2E8E9;
  --color-weak:#9AACB2;
  --radius-sm:6px;
  --radius-md:12px;
  --radius-lg:16px;
  --radius-btn:8px;
  --shadow-sm:0 2px 8px rgba(6,35,44,.06);
  --shadow-md:0 8px 24px rgba(6,35,44,.12);
  --shadow-lg:0 16px 40px rgba(6,35,44,.16);
  --transition:.2s ease;
  --space-section:80px;
  --space-section-mobile:48px;
}
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;font-size:16px}
body{
  font-family:"PingFang SC","Microsoft YaHei","Noto Sans CJK SC",sans-serif;
  color:var(--color-text);
  background:#fff;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;height:auto;display:block}
a{text-decoration:none;color:var(--color-primary);transition:color var(--transition)}
a:hover{color:var(--color-accent)}
ul,ol{list-style:none}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px}
.grid-container{max-width:1200px}
h1,h2,h3,h4,h5,h6{font-family:"PingFang SC","Microsoft YaHei","Noto Sans CJK SC",sans-serif;font-weight:600;line-height:1.4;color:var(--color-text)}
h1{font-size:38px;font-weight:700}
h2{font-size:28px;font-weight:600}
h3{font-size:18px;font-weight:600}
p{font-size:16px}
.btn{
  display:inline-flex;align-items:center;justify-content:center;
  padding:12px 28px;border-radius:var(--radius-btn);
  font-size:16px;font-weight:600;line-height:1.2;border:2px solid transparent;
  cursor:pointer;transition:all var(--transition);white-space:nowrap;
}
.btn-primary{background:var(--color-accent);color:#fff;border-color:var(--color-accent)}
.btn-primary:hover{background:var(--color-accent-light);border-color:var(--color-accent-light);color:#fff;transform:translateY(-1px);box-shadow:0 6px 16px rgba(230,126,48,.3)}
.btn-outline{background:transparent;color:#fff;border-color:rgba(255,255,255,.7)}
.btn-outline:hover{background:rgba(255,255,255,.12);border-color:#fff;color:#fff;transform:translateY(-1px)}
.btn-secondary{background:var(--color-secondary);color:#fff;border-color:var(--color-secondary)}
.btn-secondary:hover{background:var(--color-secondary-light);color:#fff;transform:translateY(-1px)}
.btn-block{width:100%;justify-content:center}
.btn-lg{padding:15px 38px;font-size:17px}
.btn-sm{padding:9px 20px;font-size:14px}
.card-hover{transition:box-shadow var(--transition),border-color var(--transition),transform var(--transition)}
.card-hover:hover{box-shadow:var(--shadow-md);border-color:var(--color-secondary);transform:translateY(-2px)}
.link-more{display:inline-flex;align-items:center;gap:4px;font-weight:600;font-size:15px;color:var(--color-primary);transition:gap var(--transition),color var(--transition)}
.link-more:hover{color:var(--color-accent);gap:8px}
.section-head{text-align:center;max-width:720px;margin:0 auto 48px}
.section-head h2{font-size:30px;color:var(--color-primary)}
.section-head p{color:var(--color-muted);font-size:16px;margin-top:12px}
.inline-icon{width:44px;height:44px;border-radius:10px;display:inline-flex;align-items:center;justify-content:center;background:rgba(15,163,150,.12);color:var(--color-secondary);font-size:20px;flex-shrink:0}
/* top info bar */
.top-info-bar{
  background:var(--color-dark);color:rgba(255,255,255,.6);
  font-size:12px;height:36px;display:flex;align-items:center;
}
.top-info-bar .container{display:flex;justify-content:space-between;align-items:center;gap:16px}
.top-domain{letter-spacing:.3px;color:rgba(255,255,255,.45)}
.top-action{color:var(--color-accent);font-weight:600;transition:color var(--transition)}
.top-action:hover{color:#fff}
/* header */
.site-header{
  position:sticky;top:0;z-index:100;background:rgba(255,255,255,.96);
  backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);
  border-bottom:1px solid var(--color-border);transition:box-shadow var(--transition);
}
.site-header.is-scrolled{box-shadow:0 2px 12px rgba(6,35,44,.08)}
.header-inner{display:flex;align-items:center;justify-content:space-between;height:72px;gap:20px}
.brand-logo{display:flex;align-items:center;gap:10px;flex-shrink:0}
.logo-mark{
  width:40px;height:40px;border-radius:12px;
  background:linear-gradient(135deg,var(--color-secondary),var(--color-primary));
  display:inline-flex;align-items:center;justify-content:center;
  color:#fff;font-size:18px;font-weight:700;
  box-shadow:0 4px 12px rgba(15,163,150,.25);
}
.logo-text{display:flex;flex-direction:column;line-height:1.1}
.logo-text strong{font-size:22px;color:var(--color-primary);letter-spacing:1px}
.logo-text small{font-size:11px;color:var(--color-muted);letter-spacing:2px;text-transform:uppercase;margin-top:2px}
.main-nav{display:flex;align-items:center;gap:6px}
.main-nav ul{display:flex;gap:2px;list-style:none}
.main-nav li{position:relative}
.main-nav a{
  display:block;padding:10px 14px;font-size:15px;font-weight:500;
  color:var(--color-text);border-radius:var(--radius-sm);transition:all var(--transition);
}
.main-nav a:hover{color:var(--color-primary);background:rgba(11,75,92,.05)}
.main-nav a.active{color:var(--color-primary)}
.main-nav a.active::after{
  content:'';position:absolute;left:14px;right:14px;bottom:2px;height:2px;
  background:var(--color-accent);border-radius:2px;
}
.header-cta{display:flex;align-items:center;gap:12px}
.menu-toggle{
  display:none;background:none;border:none;font-size:22px;color:var(--color-primary);
  cursor:pointer;padding:6px;border-radius:6px;transition:background var(--transition);
}
.menu-toggle:hover{background:rgba(11,75,92,.06)}
/* hero */
.hero-section{
  background:linear-gradient(135deg,rgba(11,75,92,.94),rgba(6,35,44,.82)),url('/assets/images/backpic/back-1.webp') center/cover;
  color:#fff;padding:100px 0 80px;position:relative;
}
.hero-inner{max-width:680px}
.hero-eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  background:rgba(255,255,255,.1);border:1px solid rgba(255,255,255,.2);
  color:#fff;font-size:13px;padding:5px 14px;border-radius:100px;margin-bottom:24px;
}
.hero-eyebrow i{color:var(--color-accent)}
.hero-inner h1{color:#fff;font-size:38px;line-height:1.35;margin-bottom:20px}
.hero-inner h1 span{color:var(--color-accent)}
.hero-sub{font-size:17px;color:rgba(255,255,255,.8);margin-bottom:32px;max-width:560px;line-height:1.75}
.hero-btns{display:flex;gap:16px;flex-wrap:wrap}
.hero-stats{
  display:grid;grid-template-columns:repeat(4,1fr);gap:0;
  margin-top:56px;background:rgba(255,255,255,.08);
  border-radius:var(--radius-md);padding:20px 10px;
  backdrop-filter:blur(6px);
}
.stat-item{text-align:center;padding:8px 8px;position:relative}
.stat-item:not(:last-child)::after{
  content:'';position:absolute;right:0;top:50%;transform:translateY(-50%);
  width:1px;height:40px;background:rgba(255,255,255,.18);
}
.stat-num{
  font-family:"DIN Alternate","Barlow Condensed","PingFang SC",sans-serif;
  font-variant-numeric:tabular-nums;
  font-size:40px;font-weight:700;color:#fff;line-height:1.1;
}
.stat-num span{font-size:20px;color:rgba(255,255,255,.7);margin-left:2px}
.stat-label{font-size:13px;color:rgba(255,255,255,.6);margin-top:6px;letter-spacing:.5px}
/* trust bar */
.trust-section{background:#fff;padding:60px 0;border-bottom:1px solid var(--color-border)}
.trust-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.trust-item{display:flex;gap:16px;align-items:flex-start;padding:24px;border-radius:var(--radius-md);transition:box-shadow var(--transition)}
.trust-item:hover{box-shadow:var(--shadow-sm)}
.trust-item .inline-icon{background:rgba(230,126,48,.1);color:var(--color-accent)}
.trust-item h3{font-size:17px;margin-bottom:6px}
.trust-item p{font-size:14px;color:var(--color-muted);line-height:1.6}
/* services */
.services-section{background:var(--color-light);padding:var(--space-section) 0}
.service-wide{
  background:var(--color-card);border-radius:var(--radius-lg);padding:32px;
  border-left:4px solid var(--color-secondary);
  box-shadow:var(--shadow-sm);margin-bottom:24px;overflow:hidden;
}
.service-wide .grid-x{align-items:center}
.service-wide-icon{
  width:52px;height:52px;border-radius:12px;
  background:linear-gradient(135deg,var(--color-secondary),var(--color-primary));
  display:inline-flex;align-items:center;justify-content:center;color:#fff;font-size:22px;margin-bottom:16px;
}
.service-wide h3{font-size:22px;margin-bottom:12px;color:var(--color-primary)}
.service-wide p{color:var(--color-muted);font-size:15px;margin-bottom:16px;max-width:560px}
.service-wide-img{border-radius:var(--radius-md);object-fit:cover;width:100%;height:180px;box-shadow:var(--shadow-sm)}
.service-grid{display:grid;grid-template-columns:1fr 1fr;gap:24px}
.service-card{
  background:var(--color-card);border:1px solid var(--color-border);
  border-radius:var(--radius-md);padding:28px;position:relative;
  transition:box-shadow var(--transition),border-color var(--transition),transform var(--transition);
}
.service-card:hover{box-shadow:var(--shadow-md);border-color:var(--color-secondary);transform:translateY(-3px)}
.service-card .service-icon{
  width:46px;height:46px;border-radius:10px;background:rgba(15,163,150,.1);
  color:var(--color-secondary);font-size:19px;display:inline-flex;align-items:center;justify-content:center;margin-bottom:16px;
}
.service-card h3{font-size:17px;margin-bottom:8px}
.service-card p{font-size:14px;color:var(--color-muted);line-height:1.6;margin-bottom:16px}
/* compare */
.compare-section{
  background:var(--color-dark);padding:var(--space-section) 0;color:#fff;
}
.compare-section .section-head h2{color:#fff}
.compare-section .section-head p{color:rgba(255,255,255,.6)}
.compare-grid{display:grid;grid-template-columns:1fr 1fr;gap:28px}
.compare-card{
  background:rgba(255,255,255,.07);border:1px solid rgba(255,255,255,.1);
  border-radius:var(--radius-lg);padding:32px;backdrop-filter:blur(6px);
}
.compare-card h3{color:#fff;font-size:20px;margin-bottom:20px;display:flex;align-items:center;gap:10px}
.compare-card h3 i{font-size:18px}
.compare-new{border-color:rgba(230,126,48,.6);position:relative}
.compare-tag{
  position:absolute;top:-12px;right:24px;background:var(--color-accent);color:#fff;
  font-size:13px;font-weight:600;padding:4px 14px;border-radius:100px;box-shadow:0 4px 10px rgba(230,126,48,.3);
}
.compare-card ul li{
  display:flex;align-items:flex-start;gap:10px;padding:10px 0;
  border-bottom:1px solid rgba(255,255,255,.1);font-size:15px;color:rgba(255,255,255,.8);
}
.compare-card ul li:last-child{border-bottom:none}
.compare-card ul li i{font-size:15px;margin-top:4px;flex-shrink:0}
.compare-old li i{color:#E05E5E}
.compare-new li i{color:var(--color-secondary-light)}
.compare-bar{
  margin-top:40px;background:rgba(255,255,255,.06);
  border-radius:var(--radius-md);padding:28px 32px;
  display:grid;grid-template-columns:1fr 1fr;gap:28px;
}
.bar-item{display:flex;flex-direction:column;gap:6px}
.bar-item span{font-size:14px;color:rgba(255,255,255,.65)}
.bar-track{height:10px;background:rgba(255,255,255,.12);border-radius:6px;overflow:hidden}
.bar-fill{height:100%;border-radius:6px}
.bar-fill-gray{background:rgba(255,255,255,.4);width:72%}
.bar-fill-accent{background:var(--color-accent);width:38%}
.bar-item strong{color:#fff;font-size:15px}
/* news */
.news-section{background:var(--color-light);padding:var(--space-section) 0}
.news-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.news-card{
  background:var(--color-card);border-radius:var(--radius-md);overflow:hidden;
  box-shadow:var(--shadow-sm);border:1px solid transparent;
  transition:box-shadow var(--transition),transform var(--transition),border-color var(--transition);
  display:flex;flex-direction:column;
}
.news-card:hover{box-shadow:var(--shadow-md);transform:translateY(-3px);border-color:var(--color-secondary)}
.news-cover{position:relative;height:180px;overflow:hidden;background:var(--color-border)}
.news-cover img{width:100%;height:100%;object-fit:cover;transition:transform .4s ease}
.news-card:hover .news-cover img{transform:scale(1.04)}
.news-badge{
  position:absolute;top:14px;left:14px;background:var(--color-secondary);color:#fff;
  font-size:12px;font-weight:600;padding:4px 12px;border-radius:100px;z-index:2;
}
.news-body{padding:20px 22px 8px;flex:1;display:flex;flex-direction:column}
.news-title{font-size:17px;margin-bottom:8px;line-height:1.4}
.news-title a{color:var(--color-text)}
.news-title a:hover{color:var(--color-primary)}
.news-excerpt{font-size:14px;color:var(--color-muted);line-height:1.6;margin-bottom:12px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.news-meta{
  display:flex;justify-content:space-between;align-items:center;
  padding-top:12px;border-top:1px solid var(--color-border);
  margin-top:auto;font-size:13px;color:var(--color-weak);
}
.news-more{font-size:13px;color:var(--color-primary);font-weight:600}
.news-more:hover{color:var(--color-accent)}
.news-empty{
  border:2px dashed var(--color-border);border-radius:var(--radius-md);
  padding:56px 24px;text-align:center;color:var(--color-muted);font-size:15px;
}
/* faq */
.faq-section{background:#fff;padding:var(--space-section) 0}
.faq-layout{display:grid;grid-template-columns:340px 1fr;gap:48px;align-items:flex-start}
.faq-side h2{font-size:28px;color:var(--color-primary);margin-bottom:14px}
.faq-side p{color:var(--color-muted);font-size:15px;line-height:1.7}
.faq-list .accordion-item{
  background:var(--color-card);border:1px solid var(--color-border);
  border-radius:var(--radius-md);margin-bottom:12px;overflow:hidden;
  transition:border-color var(--transition),box-shadow var(--transition);
}
.faq-list .accordion-item.is-active{border-color:var(--color-secondary);box-shadow:var(--shadow-sm)}
.accordion-title{
  display:flex;align-items:center;justify-content:space-between;
  padding:18px 22px;font-size:16px;font-weight:500;color:var(--color-text);
  border-radius:var(--radius-md);transition:background var(--transition);
}
.accordion-title::after{
  content:'\f067';font-family:'Font Awesome 6 Free';font-weight:900;
  font-size:14px;color:var(--color-secondary);transition:transform var(--transition);
}
.accordion-item.is-active>.accordion-title::after{content:'\f068'}
.accordion-title:hover{background:rgba(15,163,150,.04)}
.accordion-content{padding:0 22px 18px;color:var(--color-muted);font-size:14px;line-height:1.75}
.faq-cta{
  margin-top:28px;background:var(--color-light);border-radius:var(--radius-md);
  padding:20px 24px;display:flex;justify-content:space-between;align-items:center;gap:16px;flex-wrap:wrap;
}
.faq-cta p{font-size:15px;color:var(--color-text);font-weight:500}
/* contact */
.contact-section{
  background:linear-gradient(135deg,rgba(11,75,92,.96),rgba(6,35,44,.88)),url('/assets/images/backpic/back-2.png') center/cover;
  padding:var(--space-section) 0;color:#fff;
}
.contact-section .section-head h2{color:#fff}
.contact-section .section-head p{color:rgba(255,255,255,.65)}
.contact-grid{display:grid;grid-template-columns:1.2fr .8fr;gap:32px}
.contact-form-wrap{
  background:var(--color-card);border-radius:var(--radius-lg);padding:32px;
  box-shadow:var(--shadow-lg);
}
.contact-form-wrap h3{font-size:20px;color:var(--color-primary);margin-bottom:6px}
.contact-form-wrap .form-sub{font-size:14px;color:var(--color-muted);margin-bottom:24px}
.form-group{margin-bottom:18px}
.form-group label{display:block;font-size:14px;color:var(--color-text);font-weight:500;margin-bottom:6px}
.form-group input[type="text"],
.form-group input[type="tel"],
.form-group select,
.form-group textarea{
  width:100%;height:44px;border:1px solid var(--color-border);border-radius:var(--radius-btn);
  padding:0 14px;font-size:15px;font-family:inherit;color:var(--color-text);
  transition:border-color var(--transition),box-shadow var(--transition);
}
.form-group textarea{height:auto;padding:12px 14px;resize:vertical}
.form-group select{appearance:none;background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8'%3E%3Cpath fill='%2360777E' d='M6 8L0 0h12z'/%3E%3C/svg%3E");background-repeat:no-repeat;background-position:right 14px center;padding-right:40px}
.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus{
  outline:none;border-color:var(--color-secondary);
  box-shadow:0 0 0 3px rgba(15,163,150,.15);
}
.form-group input::placeholder,
.form-group textarea::placeholder{color:var(--color-weak)}
.contact-info-card{
  background:rgba(255,255,255,.09);border:1px solid rgba(255,255,255,.14);
  border-radius:var(--radius-lg);padding:32px;backdrop-filter:blur(6px);
}
.contact-info-card h3{color:#fff;font-size:20px;margin-bottom:20px}
.contact-info-list{display:flex;flex-direction:column;gap:18px}
.contact-info-item{display:flex;align-items:flex-start;gap:12px}
.contact-info-item i{
  width:38px;height:38px;border-radius:10px;background:rgba(255,255,255,.1);
  color:var(--color-accent);display:inline-flex;align-items:center;justify-content:center;font-size:15px;flex-shrink:0;
}
.contact-info-item .ci-label{font-size:13px;color:rgba(255,255,255,.55);margin-bottom:2px}
.contact-info-item .ci-value{font-size:15px;color:#fff}
.contact-tip{
  margin-top:24px;padding-top:20px;border-top:1px solid rgba(255,255,255,.12);
  font-size:14px;color:rgba(255,255,255,.7);line-height:1.7;
}
.contact-tip strong{color:var(--color-accent-light)}
/* footer */
.site-footer{background:#041A20;color:rgba(255,255,255,.65);padding:64px 0 0}
.footer-main{display:grid;grid-template-columns:1.2fr .8fr 1fr 1fr;gap:40px;padding-bottom:48px;border-bottom:1px solid rgba(255,255,255,.08)}
.footer-logo{display:flex;align-items:center;gap:10px;margin-bottom:14px}
.footer-logo .logo-mark{width:36px;height:36px;font-size:16px;border-radius:10px}
.footer-logo strong{font-size:20px;color:#fff}
.footer-brand p{font-size:14px;line-height:1.7;color:rgba(255,255,255,.55)}
.site-footer h4{color:#fff;font-size:15px;margin-bottom:16px;font-weight:600}
.footer-links li{margin-bottom:8px}
.footer-links a{color:rgba(255,255,255,.55);font-size:14px;transition:color var(--transition)}
.footer-links a:hover{color:var(--color-accent)}
.footer-contact p{margin-bottom:10px;font-size:14px;color:rgba(255,255,255,.55);display:flex;align-items:center;gap:10px}
.footer-contact i{color:var(--color-accent)}
.footer-bottom{
  padding:20px 0;text-align:center;font-size:13px;
  color:rgba(255,255,255,.35);
}
.footer-bottom a{color:rgba(255,255,255,.35)}
/* responsive */
@media (max-width:1023px){
  :root{--space-section:64px}
  h1{font-size:32px}
  .hero-section{padding:80px 0 60px}
  .hero-stats{grid-template-columns:repeat(4,1fr);padding:16px 8px}
  .stat-num{font-size:32px}
  .footer-main{grid-template-columns:1fr 1fr;gap:32px}
  .faq-layout{grid-template-columns:1fr;gap:32px}
  .contact-grid{grid-template-columns:1fr}
  .news-grid{grid-template-columns:repeat(2,1fr)}
}
@media (max-width:767px){
  :root{--space-section:48px}
  .header-inner{height:64px}
  .main-nav{
    position:fixed;top:100px;left:0;right:0;
    background:#fff;flex-direction:column;align-items:stretch;
    padding:16px 24px;box-shadow:0 12px 24px rgba(6,35,44,.1);
    transform:translateY(-16px);opacity:0;visibility:hidden;
    transition:all .25s ease;border-radius:0 0 16px 16px;z-index:99;
  }
  .main-nav.nav-open{transform:translateY(0);opacity:1;visibility:visible}
  .main-nav ul{flex-direction:column;gap:0}
  .main-nav li{width:100%}
  .main-nav a{padding:14px 12px;font-size:16px;border-radius:8px}
  .main-nav a.active::after{display:none}
  .main-nav a.active{background:rgba(15,163,150,.08)}
  .header-cta .btn-sm{display:none}
  .menu-toggle{display:inline-flex}
  .hero-section{padding:60px 0 48px}
  .hero-inner h1{font-size:28px}
  .hero-sub{font-size:15px}
  .hero-btns .btn{padding:11px 20px;font-size:14px}
  .hero-stats{grid-template-columns:1fr 1fr;gap:8px}
  .stat-item:nth-child(2)::after{display:none}
  .hero-stats .stat-item:not(:first-child){border-left:none}
  .stat-item{padding:12px}
  .stat-item:nth-child(2)::after{display:none}
  .trust-grid{grid-template-columns:1fr}
  .service-grid{grid-template-columns:1fr}
  .service-wide{padding:24px}
  .compare-grid{grid-template-columns:1fr}
  .compare-bar{grid-template-columns:1fr;padding:20px}
  .news-grid{grid-template-columns:1fr}
  .footer-main{grid-template-columns:1fr;gap:28px}
  .contact-form-wrap{padding:24px}
  .faq-cta{flex-direction:column;align-items:flex-start}
}
@media (max-width:520px){
  .hero-btns{flex-direction:column;width:100%}
  .hero-btns .btn{width:100%}
  .hero-stats{grid-template-columns:1fr 1fr;padding:12px 6px}
  .stat-num{font-size:28px}
}

/* roulang page: category1 */
:root {
  --c-primary: #0B4B5C;
  --c-secondary: #0FA396;
  --c-accent: #E67E30;
  --c-deep: #06232C;
  --c-light: #F5F2ED;
  --c-card: #FFFFFF;
  --c-text: #22333B;
  --c-text-light: #60777E;
  --c-border: #E2E8E9;
  --c-success: #23995C;
  --c-error: #C0392B;
  --r-sm: 6px;
  --r-md: 12px;
  --r-lg: 16px;
  --shadow-sm: 0 2px 8px rgba(6,35,44,.06);
  --shadow-hover: 0 8px 24px rgba(6,35,44,.12);
  --shadow-deep: 0 8px 24px rgba(0,0,0,.25);
  --tr: .2s ease;
  --container-w: 1200px;
  --font-main: "PingFang SC", "Microsoft YaHei", "Noto Sans CJK SC", sans-serif;
  --font-num: "DIN Alternate", "Barlow Condensed", "PingFang SC", sans-serif;
}
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: var(--font-main);
  color: var(--c-text);
  background: var(--c-light);
  line-height: 1.75;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; height: auto; display: block; }
a { color: var(--c-primary); text-decoration: none; transition: color var(--tr); }
a:hover { color: var(--c-accent); }
button, input, select, textarea { font-family: inherit; }
ul, ol { margin: 0; padding: 0; list-style: none; }
.container { max-width: var(--container-w); margin: 0 auto; padding: 0 20px; }
.section { padding: 80px 0; position: relative; }

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 28px;
  border-radius: 8px;
  font-weight: 600;
  font-size: 15px;
  line-height: 1.4;
  border: 2px solid transparent;
  cursor: pointer;
  transition: all var(--tr);
  text-align: center;
}
.btn i { font-size: 14px; }
.btn-accent {
  background: var(--c-accent);
  color: #fff;
}
.btn-accent:hover {
  background: #d06a1f;
  color: #fff;
  transform: translateY(-1px);
  box-shadow: 0 4px 14px rgba(230,126,48,.3);
}
.btn-primary {
  background: var(--c-primary);
  color: #fff;
}
.btn-primary:hover {
  background: #093e4d;
  color: #fff;
  transform: translateY(-1px);
}
.btn-outline-light {
  border-color: rgba(255,255,255,.7);
  color: #fff;
  background: transparent;
}
.btn-outline-light:hover {
  background: rgba(255,255,255,.12);
  color: #fff;
  border-color: #fff;
}
.btn-outline-primary {
  border-color: var(--c-primary);
  color: var(--c-primary);
  background: transparent;
}
.btn-outline-primary:hover {
  background: rgba(11,75,92,.06);
  color: var(--c-primary);
  transform: translateY(-1px);
}
.btn-sm { padding: 10px 20px; font-size: 14px; }

.grid-margin-x { margin-right: -12px; margin-left: -12px; }
.grid-margin-x > .cell { margin-right: 12px; margin-left: 12px; margin-bottom: 24px; }

/* ===== Topbar ===== */
.topbar {
  background: var(--c-deep);
  color: rgba(255,255,255,.75);
  font-size: 12px;
  line-height: 36px;
  min-height: 36px;
}
.topbar-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.topbar-domain {
  color: rgba(255,255,255,.5);
  font-size: 13px;
}
.topbar-link {
  color: var(--c-accent);
  font-weight: 600;
}
.topbar-link:hover {
  color: #ffa05c;
}
.topbar-link i { margin-right: 4px; }

/* ===== Main Nav ===== */
.main-nav-wrap {
  background: rgba(255,255,255,.96);
  border-bottom: 1px solid var(--c-border);
  position: sticky;
  top: 0;
  z-index: 100;
  transition: box-shadow .3s ease;
}
.main-nav-wrap.is-stuck {
  box-shadow: 0 2px 12px rgba(6,35,44,.08);
}
.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
  gap: 20px;
}
.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  flex-shrink: 0;
}
.logo-mark {
  width: 40px;
  height: 40px;
  border-radius: 10px;
  background: linear-gradient(135deg, var(--c-primary), var(--c-secondary));
  display: inline-flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-size: 18px;
  box-shadow: var(--shadow-sm);
}
.logo-text {
  display: flex;
  flex-direction: column;
  line-height: 1.2;
}
.logo-text strong {
  font-size: 22px;
  font-weight: 700;
  color: var(--c-primary);
  letter-spacing: .01em;
}
.logo-text span {
  font-size: 11px;
  color: var(--c-text-light);
  letter-spacing: .06em;
}
.main-nav {
  display: flex;
  align-items: center;
}
.main-nav ul {
  display: flex;
  align-items: center;
  gap: 28px;
}
.main-nav a {
  font-size: 15px;
  font-weight: 500;
  color: var(--c-text);
  padding: 8px 0;
  position: relative;
  white-space: nowrap;
}
.main-nav a::after {
  content: '';
  position: absolute;
  left: 0;
  bottom: 0;
  width: 0;
  height: 2px;
  background: var(--c-accent);
  border-radius: 2px;
  transition: width var(--tr);
}
.main-nav a:hover { color: var(--c-primary); }
.main-nav a:hover::after,
.main-nav a.active::after { width: 100%; }
.main-nav a.active {
  color: var(--c-primary);
  font-weight: 600;
}
.nav-cta {
  margin-left: 4px;
  flex-shrink: 0;
}
.nav-toggle {
  display: none;
  background: none;
  border: none;
  font-size: 24px;
  color: var(--c-primary);
  padding: 8px 12px;
  cursor: pointer;
  border-radius: 8px;
  transition: background var(--tr);
}
.nav-toggle:hover { background: rgba(11,75,92,.08); }
.nav-toggle:focus { outline: 2px solid var(--c-secondary); outline-offset: 2px; }

/* ===== Page Banner ===== */
.page-banner {
  position: relative;
  padding: 76px 0 72px;
  background: linear-gradient(135deg, rgba(11,75,92,.94), rgba(6,35,44,.84)), url('/assets/images/backpic/back-1.webp') center/cover no-repeat;
  color: #fff;
}
.page-banner::after {
  content: '';
  position: absolute;
  right: -80px;
  bottom: -40px;
  width: 360px;
  height: 360px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(15,163,150,.25), transparent 70%);
  pointer-events: none;
}
.page-banner .container { position: relative; z-index: 2; }
.breadcrumb-wrap {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  color: rgba(255,255,255,.65);
  margin-bottom: 18px;
  flex-wrap: wrap;
}
.breadcrumb-wrap a {
  color: rgba(255,255,255,.8);
  transition: color var(--tr);
}
.breadcrumb-wrap a:hover { color: var(--c-accent); }
.breadcrumb-wrap .sep { color: rgba(255,255,255,.4); margin: 0 2px; }
.banner-tag {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: rgba(255,255,255,.12);
  border: 1px solid rgba(255,255,255,.25);
  color: #fff;
  font-size: 13px;
  font-weight: 500;
  padding: 4px 14px;
  border-radius: 20px;
  margin-bottom: 16px;
  letter-spacing: .03em;
}
.page-banner h1 {
  font-size: 38px;
  line-height: 1.3;
  font-weight: 700;
  margin: 0 0 14px;
  color: #fff;
  letter-spacing: .01em;
}
.banner-desc {
  color: rgba(255,255,255,.85);
  font-size: 16px;
  line-height: 1.75;
  max-width: 640px;
  margin: 0 0 30px;
}
.banner-actions {
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
}

/* ===== Section Header ===== */
.section-header {
  text-align: center;
  margin-bottom: 42px;
}
.section-label {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 13px;
  font-weight: 600;
  color: var(--c-secondary);
  background: rgba(15,163,150,.1);
  padding: 4px 14px;
  border-radius: 4px;
  letter-spacing: .05em;
  margin-bottom: 12px;
}
.section-header h2 {
  font-size: 30px;
  font-weight: 700;
  color: var(--c-text);
  margin: 0 0 8px;
  line-height: 1.3;
}
.section-header .section-desc {
  color: var(--c-text-light);
  font-size: 15px;
  max-width: 680px;
  margin: 0 auto;
  line-height: 1.7;
}
.section-header.left { text-align: left; }
.section-header.left .section-desc { margin: 0; }

/* ===== Process ===== */
.process-section { background: var(--c-light); }
.process-card {
  background: var(--c-card);
  border-radius: var(--r-md);
  padding: 26px 24px 24px;
  height: 100%;
  border-top: 3px solid var(--c-secondary);
  box-shadow: var(--shadow-sm);
  position: relative;
  overflow: hidden;
  transition: box-shadow var(--tr), transform var(--tr);
}
.process-card:hover {
  box-shadow: var(--shadow-hover);
  transform: translateY(-3px);
}
.process-card .step-num {
  position: absolute;
  top: 12px;
  right: 18px;
  font-family: var(--font-num);
  font-size: 44px;
  font-weight: 800;
  color: rgba(11,75,92,.06);
  line-height: 1;
  font-variant-numeric: tabular-nums;
}
.step-icon {
  width: 46px;
  height: 46px;
  border-radius: 10px;
  background: linear-gradient(135deg, var(--c-primary), var(--c-secondary));
  display: inline-flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-size: 18px;
  margin-bottom: 14px;
  box-shadow: var(--shadow-sm);
}
.process-card h3 {
  font-size: 17px;
  font-weight: 600;
  margin: 0 0 8px;
  color: var(--c-text);
}
.process-card p {
  font-size: 14px;
  color: var(--c-text-light);
  margin: 0;
  line-height: 1.65;
}

/* ===== Method ===== */
.method-section { background: var(--c-card); }
.method-card {
  background: var(--c-light);
  border-radius: var(--r-md);
  border: 1px solid var(--c-border);
  height: 100%;
  transition: border-color var(--tr), box-shadow var(--tr), transform var(--tr);
  overflow: hidden;
}
.method-card:hover {
  border-color: var(--c-secondary);
  box-shadow: var(--shadow-hover);
  transform: translateY(-2px);
}
.method-card.featured {
  display: flex;
  flex-wrap: wrap;
  background: var(--c-card);
  border-left: 4px solid var(--c-secondary);
  overflow: hidden;
}
.method-card.featured .featured-content {
  flex: 1 1 50%;
  padding: 32px;
  align-self: center;
}
.method-card.featured .featured-media {
  flex: 1 1 50%;
  min-height: 260px;
}
.method-card.featured .featured-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  min-height: 260px;
}
.method-card .card-body { padding: 26px 24px 24px; }
.method-card .method-icon {
  width: 44px;
  height: 44px;
  border-radius: 10px;
  background: rgba(15,163,150,.12);
  color: var(--c-secondary);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 18px;
  margin-bottom: 14px;
}
.method-card h3 {
  font-size: 19px;
  font-weight: 600;
  margin: 0 0 8px;
  color: var(--c-text);
}
.method-card p {
  font-size: 14px;
  color: var(--c-text-light);
  margin: 0 0 16px;
  line-height: 1.7;
}
.method-link {
  font-size: 14px;
  font-weight: 600;
  color: var(--c-primary);
  display: inline-flex;
  align-items: center;
  gap: 6px;
  transition: gap var(--tr), color var(--tr);
}
.method-link:hover { color: var(--c-accent); gap: 9px; }
.featured-content .method-link { font-size: 15px; }

/* ===== Notice ===== */
.notice-section { background: var(--c-light); }
.notice-card {
  background: var(--c-card);
  border-radius: var(--r-md);
  padding: 30px 28px;
  height: 100%;
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--c-border);
  transition: box-shadow var(--tr), border-color var(--tr);
}
.notice-card:hover { box-shadow: var(--shadow-hover); border-color: var(--c-secondary); }
.notice-card .notice-head {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 16px;
}
.notice-card .notice-head i {
  width: 42px;
  height: 42px;
  border-radius: 10px;
  background: linear-gradient(135deg, var(--c-primary), var(--c-secondary));
  color: #fff;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 17px;
}
.notice-card h3 {
  font-size: 18px;
  font-weight: 600;
  margin: 0;
  color: var(--c-text);
}
.notice-list li {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  padding: 10px 0;
  border-bottom: 1px solid var(--c-border);
  font-size: 15px;
  line-height: 1.6;
  color: var(--c-text);
}
.notice-list li:last-child { border-bottom: none; }
.notice-list i {
  color: var(--c-secondary);
  margin-top: 4px;
  font-size: 14px;
  flex-shrink: 0;
}
.notice-tips {
  margin-top: 24px;
  background: rgba(15,163,150,.06);
  border: 1px dashed var(--c-secondary);
  border-radius: var(--r-md);
  padding: 18px 24px;
  font-size: 14px;
  color: var(--c-text-light);
  display: flex;
  align-items: flex-start;
  gap: 12px;
  line-height: 1.7;
}
.notice-tips i {
  color: var(--c-secondary);
  font-size: 20px;
  margin-top: 2px;
}

/* ===== FAQ ===== */
.faq-section { background: var(--c-card); }
.faq-grid {
  display: flex;
  gap: 40px;
}
.faq-intro {
  flex: 0 0 300px;
}
.faq-intro h3 {
  font-size: 22px;
  font-weight: 700;
  margin: 0 0 12px;
  color: var(--c-text);
}
.faq-intro p {
  font-size: 14px;
  color: var(--c-text-light);
  line-height: 1.7;
  margin: 0 0 20px;
}
.faq-intro .btn { margin-top: 8px; }
.faq-accordion {
  flex: 1;
}
.accordion {
  background: transparent;
  list-style: none;
}
.accordion-item {
  background: var(--c-card);
  border: 1px solid var(--c-border);
  border-radius: var(--r-md);
  margin-bottom: 12px !important;
  overflow: hidden;
  transition: border-color var(--tr), box-shadow var(--tr);
}
.accordion-item.is-active {
  border-color: var(--c-secondary);
  box-shadow: var(--shadow-sm);
}
.accordion-title {
  display: block;
  padding: 18px 50px 18px 22px;
  font-size: 16px;
  font-weight: 600;
  color: var(--c-text);
  background: #fff !important;
  border: none;
  position: relative;
  line-height: 1.5;
  transition: background var(--tr), color var(--tr);
}
.accordion-title:hover,
.accordion-title:focus {
  background: #fafaf8 !important;
  color: var(--c-primary);
  outline: none;
}
.accordion-title::after {
  content: '\f067';
  font-family: 'Font Awesome 6 Free';
  font-weight: 900;
  font-size: 14px;
  color: var(--c-secondary);
  position: absolute;
  right: 20px;
  top: 50%;
  transform: translateY(-50%);
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: rgba(15,163,150,.1);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: transform var(--tr), background var(--tr);
}
.accordion-item.is-active .accordion-title::after {
  content: '\f068';
  background: var(--c-secondary);
  color: #fff;
}
.accordion-content {
  padding: 0 22px 20px !important;
  font-size: 14px;
  color: var(--c-text-light);
  line-height: 1.75;
  background: #fff !important;
  border: none;
}
.accordion-content p { margin: 0 0 8px; }
.accordion-content p:last-child { margin-bottom: 0; }

/* ===== CTA ===== */
.cta-section {
  background: linear-gradient(135deg, var(--c-primary), var(--c-deep));
  padding: 64px 0;
  text-align: center;
  color: #fff;
}
.cta-section h2 {
  font-size: 30px;
  font-weight: 700;
  margin: 0 0 12px;
  color: #fff;
}
.cta-section p {
  font-size: 15px;
  color: rgba(255,255,255,.8);
  max-width: 560px;
  margin: 0 auto 28px;
  line-height: 1.75;
}

/* ===== Footer ===== */
.site-footer {
  background: var(--c-deep);
  color: rgba(255,255,255,.72);
  font-size: 14px;
  padding-top: 56px;
}
.footer-main {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 36px;
  padding-bottom: 40px;
  border-bottom: 1px solid rgba(255,255,255,.08);
}
.footer-brand .footer-logo {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 14px;
}
.footer-brand .footer-logo .logo-mark {
  background: linear-gradient(135deg, var(--c-accent), #d06a1f);
}
.footer-brand .footer-logo strong {
  font-size: 24px;
  font-weight: 700;
  color: #fff;
}
.footer-brand p {
  margin: 0;
  line-height: 1.7;
  color: rgba(255,255,255,.62);
  font-size: 13px;
}
.site-footer h4 {
  font-size: 16px;
  font-weight: 600;
  color: #fff;
  margin: 0 0 16px;
  position: relative;
  padding-left: 14px;
}
.site-footer h4::before {
  content: '';
  position: absolute;
  left: 0;
  top: 6px;
  width: 4px;
  height: 16px;
  background: var(--c-secondary);
  border-radius: 2px;
}
.footer-links li { margin-bottom: 10px; }
.footer-links a {
  color: rgba(255,255,255,.7);
  font-size: 14px;
  transition: color var(--tr), padding-left var(--tr);
}
.footer-links a:hover { color: var(--c-accent); padding-left: 4px; }
.footer-contact p {
  margin: 0 0 10px;
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 14px;
  color: rgba(255,255,255,.7);
}
.footer-contact i {
  width: 20px;
  text-align: center;
  color: var(--c-secondary);
}
.footer-bottom {
  padding: 20px 0;
  text-align: center;
  font-size: 12px;
  color: rgba(255,255,255,.42);
  border-top: 1px solid rgba(255,255,255,.06);
}

/* ===== Responsive ===== */
@media (max-width: 1023px) {
  .nav-inner { height: auto; padding: 14px 0; flex-wrap: wrap; }
  .nav-toggle { display: inline-flex; margin-left: auto; }
  .nav-cta { display: none; }
  .main-nav {
    display: none;
    width: 100%;
    order: 5;
    background: #fff;
    border-top: 1px solid var(--c-border);
    margin-top: 12px;
    padding: 6px 0;
  }
  .main-nav.is-open { display: block; }
  .main-nav ul { flex-direction: column; align-items: stretch; gap: 0; }
  .main-nav li { border-bottom: 1px solid #f0f0f0; }
  .main-nav li:last-child { border-bottom: none; }
  .main-nav a { display: block; padding: 13px 8px; font-size: 16px; }
  .main-nav a::after { display: none; }
  .main-nav a.active { background: rgba(15,163,150,.06); border-radius: 8px; }
  .page-banner { padding: 60px 0 56px; }
  .page-banner h1 { font-size: 32px; }
  .section { padding: 60px 0; }
  .footer-main { grid-template-columns: 1fr 1fr; gap: 28px; }
  .method-card.featured .featured-content,
  .method-card.featured .featured-media { flex: 1 1 100%; }
  .method-card.featured .featured-media { min-height: 0; }
  .method-card.featured .featured-media img { min-height: 220px; }
  .faq-grid { flex-direction: column; gap: 32px; }
  .faq-intro { flex: 0 0 auto; }
}
@media (max-width: 639px) {
  body { font-size: 15px; }
  .topbar-domain { display: none; }
  .topbar-inner .topbar { text-align: center; }
  .topbar { line-height: 36px; }
  .logo-text strong { font-size: 19px; }
  .logo-mark { width: 36px; height: 36px; font-size: 16px; }
  .nav-inner { gap: 12px; }
  .page-banner { padding: 48px 0 44px; }
  .page-banner h1 { font-size: 26px; }
  .banner-desc { font-size: 15px; margin-bottom: 22px; }
  .banner-actions { flex-direction: column; align-items: stretch; gap: 10px; }
  .banner-actions .btn { width: 100%; }
  .section { padding: 48px 0; }
  .section-header { margin-bottom: 30px; }
  .section-header h2 { font-size: 24px; }
  .process-card { padding: 20px 18px; }
  .method-card.featured .featured-content { padding: 22px; }
  .method-card .card-body { padding: 20px 18px; }
  .notice-card { padding: 22px 18px; }
  .notice-tips { flex-direction: column; gap: 8px; padding: 16px 18px; }
  .accordion-title { font-size: 15px; padding: 16px 44px 16px 18px; }
  .accordion-content { padding: 0 18px 16px !important; font-size: 14px; }
  .cta-section { padding: 48px 0; }
  .cta-section h2 { font-size: 24px; }
  .cta-section .btn { width: 100%; }
  .footer-main { grid-template-columns: 1fr; gap: 24px; padding-bottom: 28px; }
  .footer-bottom { font-size: 12px; }
}

/* roulang page: article */
:root {
  --color-primary: #0B4B5C;
  --color-secondary: #0FA396;
  --color-accent: #E67E30;
  --color-dark: #06232C;
  --color-light: #F5F2ED;
  --color-white: #FFFFFF;
  --color-text: #22333B;
  --color-muted: #60777E;
  --color-border: #E2E8E9;
  --radius-sm: 6px;
  --radius-md: 12px;
  --radius-lg: 16px;
  --radius-btn: 8px;
  --shadow-sm: 0 2px 8px rgba(6,35,44,.06);
  --shadow-hover: 0 8px 24px rgba(6,35,44,.12);
  --transition: .2s ease;
}

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

html { scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: "PingFang SC", "Microsoft YaHei", "Noto Sans CJK SC", sans-serif;
  font-size: 16px;
  line-height: 1.75;
  color: var(--color-text);
  background: var(--color-white);
  -webkit-font-smoothing: antialiased;
}

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

a { color: var(--color-primary); text-decoration: none; transition: color var(--transition); }
a:hover { color: var(--color-accent); }

ul, ol { margin: 0; padding: 0; }

.container, .grid-container { max-width: 1200px; width: 100%; margin: 0 auto; padding-left: 24px; padding-right: 24px; }

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 12px 28px;
  border-radius: var(--radius-btn);
  font-size: 16px;
  font-weight: 600;
  line-height: 1.4;
  transition: all var(--transition);
  cursor: pointer;
  border: 2px solid transparent;
  text-align: center;
}
.btn:focus-visible, .main-nav a:focus-visible, .footer-links a:focus-visible {
  outline: 3px solid rgba(15, 163, 150, .45);
  outline-offset: 2px;
}
.btn-primary { background: var(--color-primary); color: #fff; }
.btn-primary:hover { background: #093A48; color: #fff; transform: translateY(-1px); box-shadow: var(--shadow-hover); }
.btn-accent { background: var(--color-accent); color: #fff; }
.btn-accent:hover { background: #D26A1F; color: #fff; transform: translateY(-1px); box-shadow: 0 8px 20px rgba(230, 126, 48, .25); }
.btn-outline { background: transparent; color: var(--color-primary); border-color: var(--color-primary); }
.btn-outline:hover { background: var(--color-primary); color: #fff; transform: translateY(-1px); }
.btn-outline-light { background: transparent; color: #fff; border-color: rgba(255,255,255,.7); }
.btn-outline-light:hover { background: rgba(255,255,255,.12); color: #fff; border-color: #fff; }
.btn-sm { padding: 10px 20px; font-size: 14px; }

/* 顶部信息条 */
.top-info {
  background: var(--color-primary);
  height: 36px;
  font-size: 12px;
  color: rgba(255,255,255,.72);
}
.top-info-inner { display: flex; align-items: center; justify-content: space-between; height: 36px; }
.top-domain { letter-spacing: .4px; }
.top-action { color: var(--color-accent); font-weight: 600; }
.top-action:hover { color: #fff; }

/* 主导航 */
.site-header {
  position: sticky;
  top: 0;
  z-index: 200;
  background: rgba(255,255,255,.96);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--color-border);
  transition: box-shadow var(--transition);
}
.site-header.scrolled { box-shadow: 0 2px 12px rgba(6,35,44,.08); }
.header-inner { display: flex; align-items: center; justify-content: space-between; height: 72px; gap: 24px; position: relative; }
.site-logo { display: flex; align-items: center; gap: 12px; text-decoration: none; flex-shrink: 0; }
.logo-mark {
  width: 42px; height: 42px;
  border-radius: 12px;
  background: linear-gradient(135deg, var(--color-primary), var(--color-secondary));
  display: flex; align-items: center; justify-content: center;
  color: #fff; font-size: 18px;
  box-shadow: 0 4px 12px rgba(11,75,92,.2);
}
.logo-text { display: flex; flex-direction: column; line-height: 1.15; }
.logo-text strong { font-size: 22px; color: var(--color-primary); font-weight: 700; letter-spacing: .5px; }
.logo-text small { font-size: 12px; color: var(--color-muted); letter-spacing: 1px; }

.main-nav { margin-left: auto; }
.main-nav ul { list-style: none; display: flex; gap: 28px; margin: 0; }
.main-nav a {
  display: inline-block;
  text-decoration: none;
  color: var(--color-text);
  font-size: 16px;
  font-weight: 500;
  padding: 8px 2px;
  position: relative;
  transition: color var(--transition);
}
.main-nav a:hover { color: var(--color-primary); }
.main-nav a.active { color: var(--color-primary); font-weight: 600; }
.main-nav a.active::after {
  content: '';
  position: absolute;
  left: 0; right: 0; bottom: 0;
  height: 2px;
  border-radius: 2px;
  background: var(--color-accent);
}
.header-cta { flex-shrink: 0; }
.nav-toggle {
  display: none;
  width: 42px; height: 42px;
  background: transparent;
  border: 1px solid var(--color-border);
  border-radius: 8px;
  cursor: pointer;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 5px;
  padding: 0;
}
.nav-toggle span { width: 18px; height: 2px; background: var(--color-primary); border-radius: 2px; transition: all var(--transition); }
.nav-toggle.active span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-toggle.active span:nth-child(2) { opacity: 0; }
.nav-toggle.active span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* 面包屑 */
.breadcrumb-wrap { background: var(--color-light); border-bottom: 1px solid var(--color-border); padding: 14px 0; }
.breadcrumb { font-size: 13px; color: var(--color-muted); display: flex; align-items: center; flex-wrap: wrap; }
.breadcrumb a { color: var(--color-muted); text-decoration: none; }
.breadcrumb a:hover { color: var(--color-primary); }
.breadcrumb i { font-size: 12px; margin: 0 8px; color: #B8C6CB; }
.breadcrumb .current { color: var(--color-text); max-width: 420px; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }

/* 文章头部 */
.article-header { background: var(--color-light); padding: 48px 0 32px; }
.article-header-inner { max-width: 860px; margin: 0 auto; text-align: center; }
.article-header h1 { font-size: 36px; line-height: 1.35; font-weight: 700; color: var(--color-text); margin: 0 0 18px; }
.article-meta { display: flex; justify-content: center; flex-wrap: wrap; gap: 22px; font-size: 14px; color: var(--color-muted); }
.article-meta span { display: inline-flex; align-items: center; gap: 7px; }
.article-meta i { color: var(--color-secondary); font-size: 14px; }

/* 正文区 */
.article-section { background: var(--color-light); padding: 0 0 80px; }
.article-content { max-width: 860px; margin: 0 auto; background: #fff; border-radius: var(--radius-lg); box-shadow: var(--shadow-sm); padding: 48px 52px; }

.article-body { font-size: 16px; line-height: 1.75; color: var(--color-text); }
.article-body p { margin: 0 0 1.5em; }
.article-body h2 { font-size: 26px; font-weight: 600; color: var(--color-text); margin: 42px 0 16px; padding-top: 24px; border-top: 1px solid var(--color-border); }
.article-body h2:first-of-type { border-top: none; padding-top: 0; margin-top: 8px; }
.article-body h3 { font-size: 20px; font-weight: 600; color: var(--color-text); margin: 32px 0 12px; }
.article-body h4 { font-size: 17px; font-weight: 600; margin: 24px 0 10px; }
.article-body ul, .article-body ol { margin: 0 0 1.5em 1.5em; }
.article-body li { margin-bottom: .5em; }
.article-body blockquote {
  border-left: 4px solid var(--color-accent);
  padding: 16px 22px;
  margin: 28px 0;
  background: #FFF8F2;
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  color: var(--color-text);
  font-size: 15px;
}
.article-body img { max-width: 100%; border-radius: var(--radius-md); margin: 28px auto; box-shadow: var(--shadow-sm); }
.article-body .wp-caption-text, .article-body figcaption {
  text-align: center;
  font-size: 13px;
  color: var(--color-muted);
  margin: -18px 0 24px;
  padding: 0 20px;
}
.article-body pre {
  background: var(--color-dark);
  color: #D5EEF5;
  padding: 20px 24px;
  border-radius: 8px;
  overflow-x: auto;
  margin: 28px 0;
  font-size: 14px;
  line-height: 1.6;
}
.article-body code { background: #EEF3F4; padding: 2px 6px; border-radius: 4px; font-family: "SFMono-Regular", Consolas, monospace; font-size: 14px; }
.article-body pre code { background: none; padding: 0; color: inherit; }
.article-body table { width: 100%; border-collapse: separate; border-spacing: 0; margin: 28px 0; border: 1px solid var(--color-border); border-radius: var(--radius-md); overflow: hidden; font-size: 14px; }
.article-body th { background: var(--color-light); color: var(--color-text); font-weight: 600; text-align: left; padding: 12px 16px; }
.article-body td { padding: 12px 16px; border-top: 1px solid var(--color-border); }
.article-body a { text-decoration: underline; text-underline-offset: 3px; }

/* 标签组 */
.article-tags { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 36px; padding-top: 24px; border-top: 1px solid var(--color-border); }
.tag {
  display: inline-flex;
  align-items: center;
  padding: 6px 14px;
  background: var(--color-light);
  border-radius: 999px;
  font-size: 13px;
  color: var(--color-muted);
  transition: all var(--transition);
  cursor: default;
}
.tag:hover { background: var(--color-secondary); color: #fff; }

/* 空态 */
.article-empty { background: var(--color-light); padding: 120px 0; text-align: center; }
.empty-state { max-width: 520px; margin: 0 auto; background: #fff; border-radius: var(--radius-lg); padding: 56px 40px; box-shadow: var(--shadow-sm); }
.empty-state h1 { font-size: 28px; color: var(--color-text); margin: 0 0 12px; }
.empty-state p { color: var(--color-muted); margin: 0 0 28px; }

/* 相关推荐 */
.related-section { background: var(--color-light); padding: 0 0 80px; }
.section-head { display: flex; align-items: center; gap: 16px; margin-bottom: 36px; }
.section-head h2 { font-size: 28px; font-weight: 600; color: var(--color-text); margin: 0; white-space: nowrap; }
.section-line { flex: 1; height: 1px; background: var(--color-border); position: relative; }
.section-line::after { content: ''; position: absolute; left: 0; top: -1px; width: 56px; height: 3px; background: var(--color-secondary); border-radius: 3px; }

.related-card {
  display: flex;
  flex-direction: column;
  background: #fff;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  transition: all var(--transition);
  height: 100%;
  text-decoration: none;
  color: var(--color-text);
}
.related-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-hover); border-color: var(--color-secondary); color: var(--color-text); }
.related-thumb { position: relative; padding-top: 56.25%; overflow: hidden; background: var(--color-light); }
.related-thumb img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; transition: transform .3s ease; }
.related-card:hover .related-thumb img { transform: scale(1.04); }
.related-content { display: flex; flex-direction: column; flex: 1; padding: 24px; }
.related-content h3 { font-size: 18px; font-weight: 600; line-height: 1.45; margin: 0 0 10px; }
.related-content p { font-size: 14px; color: var(--color-muted); line-height: 1.65; margin: 0 0 18px; flex: 1; }
.related-meta { font-size: 13px; color: var(--color-muted); display: flex; align-items: center; gap: 6px; }
.related-meta i { color: var(--color-secondary); }
.related-footer { text-align: center; margin-top: 44px; }

/* CTA 区 */
.article-cta {
  padding: 80px 0;
  background: url('/assets/images/backpic/back-1.webp') center center / cover no-repeat;
  position: relative;
}
.article-cta::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(11,75,92,.94), rgba(6,35,44,.82));
}
.cta-box { position: relative; z-index: 1; text-align: center; color: #fff; max-width: 720px; margin: 0 auto; }
.cta-box h2 { font-size: 32px; font-weight: 600; margin: 0 0 14px; line-height: 1.3; }
.cta-box p { font-size: 16px; color: rgba(255,255,255,.82); margin: 0 0 32px; }
.cta-actions { display: flex; justify-content: center; gap: 16px; flex-wrap: wrap; }

/* 页脚 */
.site-footer { background: var(--color-dark); color: rgba(255,255,255,.7); padding: 64px 0 0; }
.footer-main { display: grid; grid-template-columns: 2.2fr 1fr 1fr 1.2fr; gap: 44px; padding-bottom: 48px; }
.footer-logo { display: inline-flex; align-items: center; gap: 10px; color: #fff; text-decoration: none; margin-bottom: 16px; }
.footer-logo .logo-mark { width: 38px; height: 38px; font-size: 16px; }
.footer-logo strong { font-size: 22px; font-weight: 700; letter-spacing: .5px; }
.footer-brand p { font-size: 14px; line-height: 1.75; color: rgba(255,255,255,.58); margin: 0; max-width: 340px; }
.footer-links h4, .footer-contact h4 { font-size: 16px; color: #fff; font-weight: 600; margin: 0 0 16px; }
.footer-links ul { list-style: none; }
.footer-links li { margin-bottom: 2px; }
.footer-links a { color: rgba(255,255,255,.65); font-size: 14px; text-decoration: none; transition: color var(--transition); }
.footer-links a:hover { color: var(--color-accent); }
.footer-contact p { font-size: 14px; color: rgba(255,255,255,.65); margin-bottom: 10px; display: flex; align-items: center; gap: 8px; }
.footer-contact i { color: var(--color-secondary); width: 16px; text-align: center; font-size: 14px; }
.footer-bottom { border-top: 1px solid rgba(255,255,255,.1); padding: 20px 0; text-align: center; font-size: 12px; color: rgba(255,255,255,.4); }
.footer-bottom p { margin: 0; }

/* 响应式 */
@media (max-width: 1023px) {
  .footer-main { grid-template-columns: 1fr 1fr; gap: 32px; }
}

@media (max-width: 767px) {
  .nav-toggle { display: flex; }
  .main-nav {
    display: none;
    position: absolute;
    top: 100%;
    left: -24px;
    right: -24px;
    background: #fff;
    border-top: 1px solid var(--color-border);
    box-shadow: 0 16px 32px rgba(6,35,44,.1);
    padding: 8px 24px 16px;
  }
  .main-nav.open { display: block; }
  .main-nav ul { flex-direction: column; gap: 0; }
  .main-nav li { border-bottom: 1px solid var(--color-border); }
  .main-nav li:last-child { border-bottom: none; }
  .main-nav a { display: block; padding: 14px 2px; font-size: 15px; }
  .main-nav a.active::after { display: none; }
  .main-nav a.active { color: var(--color-accent); }
  .header-cta { display: none; }
  .header-inner { height: 64px; }

  .article-header { padding: 32px 0 24px; }
  .article-header h1 { font-size: 27px; }
  .article-meta { gap: 12px; font-size: 13px; }
  .article-content { padding: 28px 20px; border-radius: var(--radius-md); }
  .article-body { font-size: 15px; }
  .article-body h2 { font-size: 22px; margin: 32px 0 14px; }
  .article-body h3 { font-size: 18px; }

  .article-section { padding-bottom: 56px; }
  .related-section { padding-bottom: 56px; }
  .related-content { padding: 20px; }
  .section-head h2 { font-size: 24px; }

  .article-cta { padding: 56px 0; }
  .cta-box h2 { font-size: 24px; }
  .cta-actions .btn { width: 100%; }

  .footer-main { grid-template-columns: 1fr; gap: 32px; }
  .site-footer { padding-top: 48px; }
}