/* roulang page: index */
:root{
  --bg-base:#0A0F14;
  --bg-panel:#111923;
  --bg-hover:#16202E;
  --border:rgba(255,255,255,0.07);
  --border-strong:rgba(255,255,255,0.14);
  --accent-primary:#00E39A;
  --accent-secondary:#E8B05C;
  --text-primary:#E7ECEF;
  --text-secondary:#93A3B1;
  --text-muted:#557080;
  --danger:#F07167;
  --radius:12px;
  --radius-sm:8px;
  --shadow-hover:0 8px 32px rgba(0,0,0,0.25);
  --glow:0 0 0 1px rgba(0,227,154,0.3),0 0 20px rgba(0,227,154,0.15);
  --font-display:'Space Grotesk','PingFang SC','Hiragino Sans GB','Noto Sans SC','Microsoft YaHei UI',sans-serif;
  --font-body:'PingFang SC','Hiragino Sans GB','Noto Sans SC','Microsoft YaHei UI','Microsoft YaHei',sans-serif;
}
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{font-family:var(--font-body);background:var(--bg-base);color:var(--text-primary);font-size:16px;line-height:1.75;-webkit-font-smoothing:antialiased}
img{max-width:100%;display:block}
a{color:var(--accent-primary);text-decoration:none;transition:color .25s ease}
a:hover{color:#fff}
ul,ol{list-style:none}
button{font-family:inherit;cursor:pointer}
input,select,textarea{font-family:inherit;font-size:14px}
.container{width:1200px;max-width:100%;margin:0 auto;padding:0 24px}
.section{padding:96px 0}
.section-head{margin-bottom:48px}
.section-head .label{font-size:13px;color:var(--accent-primary);letter-spacing:2px;text-transform:uppercase;font-weight:600;margin-bottom:8px;display:block}
.section-head h2{font-size:32px;font-weight:700;color:var(--text-primary);letter-spacing:-0.5px;line-height:1.3}
.section-head p{font-size:14px;color:var(--text-secondary);margin-top:12px;max-width:560px;line-height:1.7}
.btn{display:inline-flex;align-items:center;justify-content:center;height:44px;padding:0 28px;border-radius:var(--radius-sm);font-size:15px;font-weight:600;letter-spacing:0.3px;transition:all .3s ease;border:none;min-width:112px}
.btn-primary{background:var(--accent-primary);color:#062118}
.btn-primary:hover{background:#19f0a9;color:#062118;box-shadow:0 0 0 1px rgba(0,227,154,0.3),0 0 24px rgba(0,227,154,0.25);transform:translateY(-1px)}
.btn-outline{background:transparent;color:#fff;border:1px solid rgba(255,255,255,0.5)}
.btn-outline:hover{border-color:var(--accent-primary);color:var(--accent-primary);box-shadow:0 0 20px rgba(0,227,154,0.1)}
.btn-light{background:rgba(255,255,255,0.08);color:var(--text-primary);border:1px solid var(--border-strong);height:40px;padding:0 20px;font-size:13px}
.btn-light:hover{background:rgba(255,255,255,0.14);color:#fff;border-color:rgba(255,255,255,0.25)}
.badge{display:inline-block;padding:4px 12px;border-radius:999px;font-size:12px;font-weight:500}
.badge-warm{background:rgba(232,176,92,0.1);color:var(--accent-secondary);border:1px solid rgba(232,176,92,0.15)}
.badge-green{background:rgba(0,227,154,0.1);color:var(--accent-primary);border:1px solid rgba(0,227,154,0.15)}
/* Navbar */
.navbar{position:fixed;top:0;left:0;right:0;height:68px;background:rgba(10,15,20,0.92);backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px);border-bottom:1px solid rgba(0,227,154,0.15);z-index:1000}
.navbar .container{height:100%;display:flex;align-items:center;justify-content:space-between}
.navbar__logo{display:flex;align-items:center;gap:10px;font-size:18px;font-weight:700;color:#fff;letter-spacing:0.5px}
.navbar__logo svg{width:24px;height:24px;flex-shrink:0}
.navbar__logo span{white-space:nowrap}
.navbar__logo .highlight{color:var(--accent-primary)}
.navbar__links{display:flex;align-items:center;gap:4px;list-style:none}
.navbar__links > li{position:relative}
.navbar__links > li > a{display:flex;align-items:center;gap:6px;padding:10px 16px;font-size:15px;font-weight:500;color:var(--text-secondary);border-radius:6px;transition:all .25s ease;position:relative;min-height:44px}
.navbar__links > li > a:hover{color:#fff;background:rgba(255,255,255,0.04)}
.navbar__links > li > a.active,.navbar__links > li > a.active:hover{color:#fff;text-shadow:0 0 8px rgba(0,227,154,0.4)}
.navbar__links > li > a.active::after{content:'';position:absolute;bottom:0;left:16px;right:16px;height:2px;background:var(--accent-primary);box-shadow:0 0 12px rgba(0,227,154,0.5);border-radius:2px}
.navbar__links > li > a i{font-size:12px;transition:transform .25s ease}
.navbar__cta{margin-left:8px}
.navbar__cta .btn{height:40px;padding:0 20px;font-size:14px;min-width:auto}
.dropdown{position:absolute;top:100%;left:0;min-width:220px;background:var(--bg-panel);border:1px solid var(--border-strong);border-radius:var(--radius);box-shadow:0 12px 40px rgba(0,0,0,0.35);padding:6px;opacity:0;visibility:hidden;transform:translateY(8px);transition:all .3s ease;z-index:50}
.navbar__links > li:hover .dropdown{opacity:1;visibility:visible;transform:translateY(0)}
.dropdown a{display:block;padding:12px 16px;font-size:14px;color:var(--text-secondary);border-radius:8px;transition:all .2s ease}
.dropdown a:hover{color:#fff;background:rgba(255,255,255,0.06)}
.dropdown a i{width:20px;color:var(--accent-primary);margin-right:6px}
.navbar__burger{display:none;width:44px;height:44px;background:none;border:none;color:#fff;font-size:20px;align-items:center;justify-content:center;border-radius:8px}
.navbar__burger:hover{background:rgba(255,255,255,0.06)}
/* Hero */
.hero{min-height:100vh;display:flex;align-items:center;position:relative;background:url('/assets/images/backpic/back-1.png') center/cover no-repeat;overflow:hidden;padding:120px 0 80px}
.hero::before{content:'';position:absolute;inset:0;background:linear-gradient(105deg,rgba(10,15,20,0.92) 25%,rgba(10,15,20,0.35) 100%);z-index:1}
.hero .container{position:relative;z-index:2}
.hero__content{max-width:640px}
.hero__tag{display:inline-flex;align-items:center;gap:8px;padding:6px 16px;border-radius:999px;border:1px solid rgba(0,227,154,0.3);background:rgba(0,227,154,0.08);color:var(--accent-primary);font-size:13px;font-weight:500;margin-bottom:24px;letter-spacing:0.5px}
.hero__tag i{font-size:10px}
.hero__title{font-size:60px;font-weight:800;line-height:1.15;letter-spacing:-1px;color:#fff;margin-bottom:20px}
.hero__title .highlight{color:var(--accent-primary);text-shadow:0 0 30px rgba(0,227,154,0.3)}
.hero__sub{font-size:18px;color:var(--text-secondary);line-height:1.8;margin-bottom:36px;max-width:520px}
.hero__actions{display:flex;gap:16px;flex-wrap:wrap}
.hero__scroll{position:absolute;bottom:32px;left:50%;transform:translateX(-50%);z-index:2;color:var(--text-muted);font-size:14px;display:flex;flex-direction:column;align-items:center;gap:6px;letter-spacing:2px}
.hero__scroll i{animation:none;font-size:16px}
/* Metrics */
.metrics{border-top:1px solid var(--border);border-bottom:1px solid var(--border);padding:72px 0}
.metrics__grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.metric{background:var(--bg-panel);border:1px solid var(--border);border-radius:var(--radius);padding:32px 28px;transition:all .3s ease}
.metric:hover{border-color:rgba(0,227,154,0.3);background:var(--bg-hover);transform:translateY(-2px)}
.metric__num{font-family:var(--font-display);font-size:48px;font-weight:700;color:var(--accent-primary);font-variant-numeric:tabular-nums;line-height:1.2;margin-bottom:8px}
.metric__label{font-size:13px;color:var(--text-secondary);letter-spacing:0.5px}
/* Services */
.services{background:var(--bg-base)}
.services__grid{display:grid;grid-template-columns:repeat(12,1fr);gap:24px}
.service-card{background:var(--bg-panel);border:1px solid var(--border);border-radius:var(--radius);padding:32px 28px;min-height:200px;display:flex;flex-direction:column;transition:all .3s ease;position:relative;overflow:hidden}
.service-card:hover{border-color:rgba(0,227,154,0.5);background:var(--bg-hover);transform:translateY(-2px);box-shadow:var(--shadow-hover)}
.service-card--wide{grid-column:span 7}
.service-card--narrow{grid-column:span 5}
.service-card--full{grid-column:span 8}
.service-card--half{grid-column:span 4}
.service-card__num{font-family:var(--font-display);font-size:14px;font-weight:600;color:var(--accent-primary);margin-bottom:20px;letter-spacing:1px;opacity:0.8}
.service-card__icon{width:48px;height:48px;display:flex;align-items:center;justify-content:center;border-radius:10px;background:rgba(0,227,154,0.08);border:1px solid rgba(0,227,154,0.2);margin-bottom:20px}
.service-card__icon svg{width:24px;height:24px;stroke:var(--accent-primary)}
.service-card__title{font-size:19px;font-weight:600;color:#fff;margin-bottom:10px;letter-spacing:0.3px}
.service-card__desc{font-size:14px;color:var(--text-secondary);line-height:1.7;flex-grow:1}
.service-card__link{display:inline-flex;align-items:center;gap:6px;margin-top:20px;font-size:13px;color:var(--text-muted);transition:all .3s ease;align-self:flex-end}
.service-card__link:hover{color:var(--accent-primary);transform:translateX(4px)}
/* Compare */
.compare{background:var(--bg-panel);padding:96px 0;position:relative}
.compare__grid{display:grid;grid-template-columns:1fr 1fr;gap:24px}
.compare-col{border-radius:var(--radius);padding:36px 32px;border:1px solid var(--border)}
.compare-col--old{background:var(--bg-base)}
.compare-col--new{background:var(--bg-panel);border-left:3px solid var(--accent-primary);border-color:rgba(0,227,154,0.4);box-shadow:0 0 20px rgba(0,227,154,0.06)}
.compare-col__title{font-size:20px;font-weight:600;margin-bottom:24px;display:flex;align-items:center;gap:10px}
.compare-col--old .compare-col__title{color:var(--text-secondary)}
.compare-col--new .compare-col__title{color:#fff}
.compare-col__title i{font-size:16px}
.compare-list li{display:flex;align-items:flex-start;gap:12px;padding:16px 0;border-bottom:1px solid var(--border);font-size:15px;line-height:1.7;color:var(--text-secondary)}
.compare-list li:last-child{border-bottom:none}
.compare-list li .icon{flex-shrink:0;width:22px;height:22px;display:flex;align-items:center;justify-content:center;border-radius:50%;font-size:12px;margin-top:2px}
.compare-list--old .icon{color:var(--danger);background:rgba(240,113,103,0.1);border:1px solid rgba(240,113,103,0.2)}
.compare-list--new .icon{color:var(--accent-primary);background:rgba(0,227,154,0.1);border:1px solid rgba(0,227,154,0.2)}
/* News */
.news__header{display:flex;align-items:flex-end;justify-content:space-between;margin-bottom:40px}
.news__header .btn{margin-bottom:4px}
.news__grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.news-card{background:var(--bg-panel);border:1px solid var(--border);border-radius:var(--radius);overflow:hidden;transition:all .3s ease;display:block}
.news-card:hover{border-color:var(--border-strong);transform:translateY(-3px);box-shadow:var(--shadow-hover)}
.news-card__thumb{position:relative;overflow:hidden;aspect-ratio:16/9;background:var(--bg-hover)}
.news-card__thumb img{width:100%;height:100%;object-fit:cover;transition:transform .4s ease}
.news-card:hover .news-card__thumb img{transform:scale(1.02)}
.news-card__body{padding:20px;display:block}
.news-card__badge{display:inline-block;padding:3px 10px;border-radius:999px;background:rgba(232,176,92,0.1);color:var(--accent-secondary);font-size:12px;font-weight:500;margin-bottom:12px}
.news-card__title{font-size:18px;font-weight:600;color:var(--text-primary);line-height:1.4;margin-bottom:10px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.news-card__desc{font-size:14px;color:var(--text-secondary);line-height:1.6;margin-bottom:16px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.news-card__meta{display:flex;align-items:center;justify-content:space-between;font-size:13px;color:var(--text-muted);padding-top:12px;border-top:1px solid var(--border)}
.news-card__meta .arrow{color:var(--text-muted);transition:all .3s ease}
.news-card:hover .news-card__meta .arrow{color:var(--accent-primary);transform:translateX(4px)}
.news-empty{border:1px dashed var(--border-strong);border-radius:var(--radius);padding:60px;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:16px;color:var(--text-muted);font-size:15px}
.news-empty i{font-size:40px;color:var(--text-muted);opacity:0.6}
/* FAQ */
.faq{background:var(--bg-base)}
.faq__list{max-width:800px;margin:0 auto}
.faq-item{background:var(--bg-panel);border:1px solid var(--border);border-radius:10px;margin-bottom:16px;overflow:hidden;transition:all .3s ease}
.faq-item.active{border-color:rgba(0,227,154,0.5);background:var(--bg-hover)}
.faq-item__question{width:100%;display:flex;align-items:center;justify-content:space-between;padding:18px 24px;background:none;border:none;color:var(--text-primary);font-size:16px;font-weight:500;text-align:left;transition:color .2s ease;gap:16px}
.faq-item__question:hover{color:#fff}
.faq-item__question .chevron{width:32px;height:32px;display:flex;align-items:center;justify-content:center;border-radius:50%;background:rgba(255,255,255,0.05);color:var(--text-secondary);font-size:14px;transition:all .3s ease;flex-shrink:0}
.faq-item.active .faq-item__question .chevron{transform:rotate(180deg);background:rgba(0,227,154,0.1);color:var(--accent-primary)}
.faq-item__answer{max-height:0;overflow:hidden;transition:max-height .4s ease;background:rgba(0,0,0,0.12)}
.faq-item__answer-inner{padding:0 24px 24px;color:var(--text-secondary);font-size:14px;line-height:1.8}
.faq-item__answer-inner p{margin-bottom:8px}
.faq-item__answer-inner ul{padding-left:18px;list-style:disc;margin-top:6px}
.faq-item__answer-inner ul li{margin-bottom:4px}
.faq-item__answer-inner strong{color:var(--text-primary)}
/* Contact */
.contact{background:var(--bg-panel);padding:80px 0}
.contact__grid{display:grid;grid-template-columns:5fr 7fr;gap:64px;align-items:start}
.contact__info h3{font-size:24px;font-weight:700;color:#fff;margin-bottom:16px}
.contact__info > p{font-size:14px;color:var(--text-secondary);line-height:1.8;margin-bottom:32px}
.contact-card{background:var(--bg-base);border:1px solid var(--border);border-radius:var(--radius);padding:24px;margin-bottom:16px;display:flex;align-items:center;gap:16px}
.contact-card__icon{width:44px;height:44px;border-radius:10px;background:rgba(0,227,154,0.08);border:1px solid rgba(0,227,154,0.15);display:flex;align-items:center;justify-content:center;color:var(--accent-primary);font-size:18px;flex-shrink:0}
.contact-card__label{font-size:12px;color:var(--text-muted);margin-bottom:4px}
.contact-card__value{font-size:15px;color:var(--text-primary);font-weight:500}
.contact-form{background:var(--bg-base);border:1px solid var(--border);border-radius:var(--radius);padding:40px}
.form-row{display:grid;grid-template-columns:1fr 1fr;gap:20px;margin-bottom:20px}
.form-group{margin-bottom:20px}
.form-group label{display:block;font-size:14px;font-weight:500;color:var(--text-primary);margin-bottom:8px}
.form-group label .required{color:var(--danger);margin-left:2px}
.form-group input,.form-group select,.form-group textarea{width:100%;background:#0C1118;border:1px solid var(--border);border-radius:6px;padding:0 16px;color:var(--text-primary);transition:all .25s ease;outline:none}
.form-group input,.form-group select{height:44px}
.form-group textarea{padding:14px 16px;resize:vertical;min-height:120px}
.form-group input::placeholder,.form-group textarea::placeholder{color:var(--text-muted)}
.form-group input:focus,.form-group select:focus,.form-group textarea:focus{border-color:var(--accent-primary);box-shadow:0 0 0 3px rgba(0,227,154,0.12)}
.form-group input.error,.form-group textarea.error{border-color:var(--danger)}
.form-error{font-size:12px;color:var(--danger);margin-top:6px;display:none}
.form-group.has-error .form-error{display:block}
.form-submit{width:100%;margin-top:8px}
.form-note{font-size:12px;color:var(--text-muted);text-align:center;margin-top:16px}
/* Footer */
.footer{background:var(--bg-base);border-top:1px solid var(--border);padding:72px 0 0}
.footer__grid{display:grid;grid-template-columns:2fr 1fr 1fr 1.5fr;gap:48px;padding-bottom:56px}
.footer__brand .navbar__logo{margin-bottom:16px}
.footer__desc{font-size:14px;color:var(--text-secondary);line-height:1.7;margin-bottom:20px;max-width:280px}
.footer__social{display:flex;gap:10px}
.footer__social a{width:36px;height:36px;display:flex;align-items:center;justify-content:center;border-radius:8px;background:var(--bg-panel);border:1px solid var(--border);color:var(--text-muted);font-size:14px;transition:all .25s ease}
.footer__social a:hover{color:var(--accent-primary);border-color:rgba(0,227,154,0.3);background:var(--bg-hover)}
.footer__title{font-size:15px;font-weight:600;color:#fff;margin-bottom:20px}
.footer__links li{margin-bottom:10px}
.footer__links a{font-size:14px;color:var(--text-secondary);transition:all .2s ease;display:inline-block}
.footer__links a:hover{color:var(--accent-primary);transform:translateX(3px)}
.footer__contact li{display:flex;align-items:flex-start;gap:12px;margin-bottom:14px;font-size:14px;color:var(--text-secondary)}
.footer__contact li i{color:var(--accent-primary);margin-top:4px;width:16px}
.footer__copyright{border-top:1px solid var(--border);padding:24px 0;text-align:center;font-size:13px;color:var(--text-muted)}
/* Scroll to top */
.scroll-top{position:fixed;bottom:32px;right:32px;width:44px;height:44px;border-radius:50%;background:var(--bg-panel);border:1px solid rgba(0,227,154,0.3);color:var(--accent-primary);font-size:16px;display:flex;align-items:center;justify-content:center;opacity:0;visibility:hidden;transition:all .3s ease;z-index:499}
.scroll-top.visible{opacity:1;visibility:visible}
.scroll-top:hover{background:var(--bg-hover);box-shadow:0 0 20px rgba(0,227,154,0.15)}
/* Mobile nav overlay */
.mobile-overlay{position:fixed;top:0;right:0;bottom:0;left:0;background:rgba(0,0,0,0.6);z-index:998;opacity:0;visibility:hidden;transition:all .3s ease}
.mobile-overlay.active{opacity:1;visibility:visible}
/* Animations */
.fade-up{opacity:0;transform:translateY(16px);transition:opacity .5s ease-out,transform .5s ease-out}
.fade-up.visible{opacity:1;transform:translateY(0)}
/* Responsive */
@media(max-width:1023px){
  .section{padding:72px 0}
  .metrics__grid{grid-template-columns:repeat(2,1fr);gap:16px}
  .services__grid{grid-template-columns:1fr 1fr;gap:20px}
  .service-card--wide,.service-card--narrow,.service-card--full,.service-card--half{grid-column:auto}
  .news__grid{grid-template-columns:repeat(2,1fr)}
  .compare__grid{grid-template-columns:1fr;gap:20px}
  .contact__grid{grid-template-columns:1fr;gap:40px}
  .footer__grid{grid-template-columns:1fr 1fr;gap:40px}
}
@media(max-width:767px){
  .navbar__links,.navbar__cta{display:none}
  .navbar__burger{display:flex}
  .navbar__links.open{display:flex;position:fixed;top:68px;right:0;bottom:0;width:280px;background:var(--bg-panel);flex-direction:column;padding:24px;gap:4px;border-left:1px solid var(--border);box-shadow:-10px 0 30px rgba(0,0,0,0.3);z-index:999;overflow-y:auto}
  .navbar__links.open > li{width:100%}
  .navbar__links.open > li > a{min-height:48px;padding:12px 16px;border-radius:8px}
  .navbar__links.open > li > a.active::after{left:0;right:auto;width:3px;height:24px;top:12px;border-radius:0 3px 3px 0;bottom:auto}
  .navbar__links.open .dropdown{position:static;opacity:1;visibility:visible;transform:none;box-shadow:none;background:rgba(255,255,255,0.03);border:none;border-radius:8px;margin:2px 0 6px 8px;min-width:0}
  .dropdown a{padding:12px 14px}
  .navbar__cta.open{display:block;margin:16px 0 0;width:100%}
  .navbar__cta.open .btn{width:100%}
  .hero{padding:120px 0 64px}
  .hero__title{font-size:34px;line-height:1.2}
  .hero__sub{font-size:16px}
  .hero__actions{flex-direction:column}
  .hero__actions .btn{width:100%}
  .section{padding:64px 0}
  .section-head h2{font-size:24px}
  .metrics{padding:48px 0}
  .metric__num{font-size:40px}
  .services__grid{grid-template-columns:1fr}
  .news__grid{grid-template-columns:1fr}
  .compare-col{padding:24px 20px}
  .contact-form{padding:24px}
  .form-row{grid-template-columns:1fr}
  .footer__grid{grid-template-columns:1fr;gap:32px}
  .contact__grid{gap:32px}
  .scroll-top{bottom:20px;right:20px}
}
@media(min-width:768px) and (max-width:1023px){
  .service-card{min-height:180px}
}
@media(min-width:1024px){
  .services__grid{grid-template-columns:repeat(12,1fr)}
}

/* roulang page: article */
:root{
  --bg-base:#0A0F14;
  --bg-panel:#111923;
  --bg-hover:#16202E;
  --border:rgba(255,255,255,0.07);
  --border-strong:rgba(255,255,255,0.14);
  --accent-primary:#00E39A;
  --accent-secondary:#E8B05C;
  --text-primary:#E7ECEF;
  --text-secondary:#93A3B1;
  --text-muted:#557080;
  --danger:#F07167;
  --radius-card:12px;
  --radius-btn:8px;
  --radius-tag:999px;
  --shadow-card:0 8px 32px rgba(0,0,0,0.25);
  --shadow-neon:0 0 0 1px rgba(0,227,154,0.3),0 0 20px rgba(0,227,154,0.15);
  --font-main:"Noto Sans SC","PingFang SC","Hiragino Sans GB","Microsoft YaHei UI","Microsoft YaHei",sans-serif;
  --font-num:"Space Grotesk","Noto Sans SC",sans-serif;
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  font-family:var(--font-main);
  font-size:16px;
  line-height:1.75;
  background:var(--bg-base);
  color:var(--text-primary);
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;display:block}
a{color:var(--accent-primary);text-decoration:none;transition:all .25s ease}
a:hover{color:#5ff0bb}
button{font-family:inherit}
ul,ol{list-style:none}
input,select,textarea{font-family:inherit;font-size:14px;color:var(--text-primary)}
.container{max-width:1200px;margin:0 auto;padding:0 24px}
.container-narrow{max-width:760px}
.highlight{color:var(--accent-primary);font-style:normal}

/* ====== 按钮 ====== */
.btn{
  display:inline-flex;align-items:center;justify-content:center;
  gap:8px;border:none;cursor:pointer;border-radius:var(--radius-btn);
  font-size:15px;font-weight:600;line-height:1;
  padding:0 22px;height:44px;transition:all .25s ease;
  text-decoration:none;white-space:nowrap;
}
.btn-primary{
  background:var(--accent-primary);color:#062118;
}
.btn-primary:hover{
  background:#2bffb1;
  color:#062118;
  box-shadow:var(--shadow-neon);
  transform:translateY(-1px);
}
.btn-primary:focus-visible{
  outline:2px solid var(--accent-primary);
  outline-offset:2px;
}
.btn-ghost{
  background:transparent;color:var(--text-primary);
  border:1px solid rgba(255,255,255,0.35);
}
.btn-ghost:hover{
  border-color:var(--accent-primary);
  color:var(--accent-primary);
  box-shadow:0 0 14px rgba(0,227,154,0.08);
}
.btn:disabled{
  opacity:.45;cursor:not-allowed;transform:none;
}

/* ====== 导航 ====== */
.navbar{
  position:fixed;top:0;left:0;right:0;z-index:1000;
  height:68px;
  background:rgba(10,15,20,0.92);
  backdrop-filter:blur(10px);
  -webkit-backdrop-filter:blur(10px);
  border-bottom:1px solid rgba(0,227,154,0.15);
}
.navbar .container{
  display:flex;align-items:center;justify-content:space-between;
  height:100%;
}
.navbar__logo{
  display:flex;align-items:center;gap:10px;
  font-size:19px;font-weight:800;
  color:var(--text-primary);
  letter-spacing:0.5px;
  flex-shrink:0;
}
.navbar__logo svg{width:26px;height:26px;flex-shrink:0}
.navbar__logo .highlight{color:var(--accent-primary)}
.navbar__logo:hover{color:#fff}
.navbar__links{
  display:flex;align-items:center;gap:28px;
  list-style:none;height:100%;
}
.navbar__links>li{position:relative;height:100%;display:flex;align-items:center}
.navbar__links>li>a{
  display:inline-flex;align-items:center;gap:6px;
  color:var(--text-secondary);font-size:15px;font-weight:500;
  height:100%;padding:0 2px;position:relative;
  transition:color .2s ease;
}
.navbar__links>li>a::after{
  content:"";position:absolute;bottom:0;left:0;
  height:2px;width:0;background:var(--accent-primary);
  box-shadow:0 0 8px rgba(0,227,154,0.4);
  transition:width .3s ease;
}
.navbar__links>li>a:hover{color:#fff}
.navbar__links>li>a:hover::after{width:100%}
.navbar__links>li>a.active{
  color:#fff;
  text-shadow:0 0 8px rgba(0,227,154,0.35);
}
.navbar__links>li>a.active::after{width:100%}
.dropdown{
  position:absolute;top:calc(100% - 2px);left:50%;
  transform:translateX(-50%) translateY(8px);
  min-width:190px;
  background:var(--bg-panel);
  border:1px solid var(--border-strong);
  border-radius:12px;
  padding:10px;
  opacity:0;visibility:hidden;
  transition:all .25s ease;
  box-shadow:var(--shadow-card);
  z-index:200;
}
.navbar__links>li:hover .dropdown{
  opacity:1;visibility:visible;
  transform:translateX(-50%) translateY(0);
}
.dropdown a{
  display:flex;align-items:center;gap:10px;
  color:var(--text-secondary);
  font-size:14px;
  padding:10px 14px;
  border-radius:8px;
  transition:all .2s ease;
}
.dropdown a i{width:18px;color:var(--accent-primary)}
.dropdown a:hover{
  background:var(--bg-hover);
  color:var(--text-primary);
  padding-left:18px;
}
.navbar__cta .btn{
  height:40px;padding:0 20px;font-size:14px;
  min-width:104px;
}
.navbar__burger{
  display:none;
  width:44px;height:44px;
  background:transparent;border:none;cursor:pointer;
  color:var(--text-primary);font-size:20px;
  border-radius:8px;align-items:center;justify-content:center;
}
.navbar__burger:hover{background:var(--bg-hover)}
.navbar__burger:focus-visible{outline:2px solid var(--accent-primary);outline-offset:2px}

/* ====== 面包屑 ====== */
.breadcrumb-section{
  padding:98px 0 16px;
  border-bottom:1px solid var(--border);
}
.breadcrumb{
  display:flex;flex-wrap:wrap;align-items:center;gap:8px;
  font-size:13px;color:var(--text-muted);
}
.breadcrumb a{color:var(--text-secondary)}
.breadcrumb a:hover{color:var(--accent-primary)}
.breadcrumb .sep{color:var(--text-muted);font-size:12px}
.breadcrumb .current{
  color:var(--text-primary);
  font-weight:500;
  max-width:320px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;
}

/* ====== 文章头 ====== */
.post-header{
  padding:48px 0 32px;
  background:
    radial-gradient(800px 320px at 20% 0%,rgba(0,227,154,0.07),transparent 70%),
    linear-gradient(180deg,rgba(17,25,35,0.5),transparent);
  border-bottom:1px solid var(--border);
}
.post-header .post-title{
  font-size:36px;line-height:1.35;font-weight:800;
  letter-spacing:0.5px;color:var(--text-primary);
  margin-bottom:18px;
}
.post-excerpt{
  font-size:16px;
  color:var(--text-secondary);
  line-height:1.85;
  max-width:680px;
  margin-bottom:22px;
}
.post-meta{
  display:flex;flex-wrap:wrap;align-items:center;gap:14px;
  font-size:14px;color:var(--text-muted);
}
.post-meta .badge{
  display:inline-flex;align-items:center;gap:6px;
  background:rgba(232,176,92,0.1);
  color:var(--accent-secondary);
  border-radius:var(--radius-tag);
  padding:5px 14px;
  font-size:12px;font-weight:600;
}
.post-meta .divider{width:1px;height:14px;background:var(--border-strong)}
.post-meta .source{color:var(--text-secondary)}

/* ====== 正文 ====== */
.post-content-wrap{
  padding:48px 0 56px;
  background:var(--bg-base);
}
.post-content{
  font-size:16px;
  line-height:1.9;
  color:var(--text-primary);
  word-break:break-word;
}
.post-content h2{
  font-size:27px;font-weight:700;
  color:var(--text-primary);
  margin:48px 0 18px;
  padding-left:16px;
  border-left:3px solid var(--accent-primary);
  line-height:1.4;
}
.post-content h3{
  font-size:21px;font-weight:600;
  color:var(--text-primary);
  margin:36px 0 14px;
}
.post-content p{
  margin:0 0 20px;
  color:rgba(231,236,239,0.92);
}
.post-content p strong{
  color:var(--text-primary);
  font-weight:600;
}
.post-content a{
  text-decoration:underline;
  text-underline-offset:3px;
}
.post-content a:hover{color:#5ff0bb}
.post-content ul,.post-content ol{
  margin:0 0 24px;
  padding-left:0;
}
.post-content ul li{
  position:relative;
  padding-left:24px;
  margin-bottom:10px;
  color:rgba(231,236,239,0.9);
}
.post-content ul li::before{
  content:"";
  position:absolute;left:2px;top:12px;
  width:7px;height:7px;
  border-radius:50%;
  background:var(--accent-primary);
  box-shadow:0 0 6px rgba(0,227,154,0.4);
}
.post-content ol{
  counter-reset:cm-list;
}
.post-content ol li{
  position:relative;
  padding-left:34px;
  margin-bottom:10px;
  counter-increment:cm-list;
  color:rgba(231,236,239,0.9);
}
.post-content ol li::before{
  content:counter(cm-list);
  position:absolute;left:0;top:2px;
  width:24px;height:24px;
  display:flex;align-items:center;justify-content:center;
  background:rgba(0,227,154,0.12);
  color:var(--accent-primary);
  border-radius:6px;
  font-family:var(--font-num);
  font-size:13px;font-weight:700;
}
.post-content blockquote{
  margin:28px 0;
  padding:20px 24px;
  background:rgba(0,227,154,0.05);
  border-left:3px solid var(--accent-primary);
  border-radius:0 var(--radius-card) var(--radius-card) 0;
  color:var(--text-secondary);
  font-style:normal;
}
.post-content blockquote p:last-child{margin-bottom:0}
.post-content img{
  border-radius:var(--radius-card);
  margin:30px auto;
  box-shadow:var(--shadow-card);
}
.post-content figure{
  margin:30px auto;
}
.post-content figure figcaption{
  text-align:center;
  font-size:13px;
  color:var(--text-muted);
  margin-top:10px;
}
.post-content code{
  background:var(--bg-hover);
  border:1px solid var(--border);
  border-radius:6px;
  padding:2px 8px;
  font-family:"SFMono-Regular",Consolas,"Liberation Mono",monospace;
  font-size:13px;
  color:var(--accent-primary);
}
.post-content pre{
  background:var(--bg-panel);
  border:1px solid var(--border);
  border-radius:var(--radius-card);
  padding:20px;
  margin:24px 0;
  overflow-x:auto;
  line-height:1.7;
}
.post-content pre code{
  background:transparent;
  border:none;
  padding:0;
  color:var(--text-primary);
}
.post-content hr{
  border:none;
  border-top:1px solid var(--border);
  margin:40px 0;
}
.post-content table{
  width:100%;
  border-collapse:collapse;
  margin:28px 0;
  font-size:14px;
}
.post-content table th{
  background:var(--bg-hover);
  color:var(--text-primary);
  font-weight:600;
  text-align:left;
  padding:12px 16px;
  border:1px solid var(--border);
}
.post-content table td{
  padding:12px 16px;
  border:1px solid var(--border);
  color:var(--text-secondary);
}

/* ====== 相关推荐 ====== */
.related-section{
  padding:64px 0;
  background:var(--bg-panel);
  border-top:1px solid var(--border);
}
.related-section .section-header{
  display:flex;align-items:flex-end;justify-content:space-between;
  margin-bottom:32px;
}
.related-section h2{
  font-size:28px;font-weight:700;
  color:var(--text-primary);
}
.related-section h2 span{
  color:var(--accent-primary);
}
.related-grid{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:24px;
}
.news-card{
  background:var(--bg-base);
  border:1px solid var(--border);
  border-radius:var(--radius-card);
  overflow:hidden;
  transition:transform .3s ease,border-color .3s ease,box-shadow .3s ease;
}
.news-card:hover{
  transform:translateY(-2px);
  border-color:rgba(0,227,154,0.5);
  box-shadow:var(--shadow-card);
}
.news-card__cover{
  width:100%;aspect-ratio:16/9;
  overflow:hidden;
}
.news-card__cover img{
  width:100%;height:100%;
  object-fit:cover;
  transition:transform .4s ease;
}
.news-card:hover .news-card__cover img{transform:scale(1.02)}
.news-card__body{
  padding:20px;
}
.news-card__tag{
  display:inline-block;
  background:rgba(232,176,92,0.1);
  color:var(--accent-secondary);
  font-size:12px;
  border-radius:var(--radius-tag);
  padding:4px 12px;
  font-weight:600;
  margin-bottom:12px;
}
.news-card__title{
  font-size:17px;font-weight:600;
  line-height:1.5;
  color:var(--text-primary);
  margin-bottom:10px;
  display:-webkit-box;
  -webkit-line-clamp:2;
  -webkit-box-orient:vertical;
  overflow:hidden;
}
.news-card__excerpt{
  font-size:14px;
  color:var(--text-secondary);
  line-height:1.7;
  margin-bottom:16px;
  display:-webkit-box;
  -webkit-line-clamp:2;
  -webkit-box-orient:vertical;
  overflow:hidden;
}
.news-card__meta{
  display:flex;align-items:center;justify-content:space-between;
  font-size:13px;
  color:var(--text-muted);
  border-top:1px solid var(--border);
  padding-top:14px;
}
.news-card__link{
  color:var(--text-muted);
  transition:all .2s ease;
}
.news-card__link:hover{
  color:var(--accent-primary);
  transform:translateX(4px);
}

/* ====== 未找到 ====== */
.not-found-section{
  padding:140px 0 120px;
  min-height:60vh;
}
.not-found-box{
  max-width:560px;
  margin:0 auto;
  text-align:center;
  background:var(--bg-panel);
  border:1px dashed var(--border-strong);
  border-radius:var(--radius-card);
  padding:60px 48px;
}
.not-found-box i{
  font-size:52px;
  color:var(--text-muted);
  margin-bottom:20px;
}
.not-found-box h1{
  font-size:28px;font-weight:700;
  color:var(--text-primary);
  margin-bottom:14px;
}
.not-found-box p{
  font-size:15px;
  color:var(--text-secondary);
  margin-bottom:28px;
  line-height:1.8;
}
.not-found-box .btn{min-width:140px}

/* ====== CTA ====== */
.cta-section{
  padding:72px 0;
  background:var(--bg-base);
  border-top:1px solid var(--border);
}
.cta-box{
  display:flex;flex-direction:column;align-items:center;text-align:center;
  background:
    linear-gradient(120deg,rgba(0,227,154,0.06),transparent 50%),
    var(--bg-panel);
  border:1px solid var(--border-strong);
  border-radius:var(--radius-card);
  padding:48px 40px;
}
.cta-box h3{
  font-size:28px;font-weight:700;
  color:var(--text-primary);
  margin-bottom:14px;
}
.cta-box p{
  font-size:15px;
  color:var(--text-secondary);
  max-width:600px;
  margin-bottom:28px;
  line-height:1.8;
}
.cta-box .btn-group{
  display:flex;gap:16px;
  flex-wrap:wrap;justify-content:center;
}
.cta-box .btn{min-width:136px}

/* ====== 页脚 ====== */
.footer{
  background:var(--bg-base);
  border-top:1px solid var(--border);
  padding:64px 0 24px;
}
.footer__grid{
  display:grid;
  grid-template-columns:2fr 1fr 1fr 1.4fr;
  gap:40px;
  margin-bottom:48px;
}
.footer__brand .navbar__logo{
  margin-bottom:16px;
}
.footer__desc{
  font-size:14px;
  color:var(--text-secondary);
  line-height:1.75;
  margin-bottom:20px;
  max-width:300px;
}
.footer__social{
  display:flex;gap:12px;
}
.footer__social a{
  width:38px;height:38px;
  display:flex;align-items:center;justify-content:center;
  border:1px solid var(--border-strong);
  border-radius:8px;
  color:var(--text-secondary);
  font-size:15px;
  transition:all .25s ease;
}
.footer__social a:hover{
  color:var(--accent-primary);
  border-color:rgba(0,227,154,0.5);
  box-shadow:var(--shadow-neon);
}
.footer__title{
  font-size:16px;font-weight:600;
  color:var(--text-primary);
  margin-bottom:18px;
}
.footer__links li{margin-bottom:12px}
.footer__links a{
  font-size:14px;
  color:var(--text-secondary);
  transition:color .2s ease;
}
.footer__links a:hover{color:var(--accent-primary)}
.footer__contact li{
  display:flex;align-items:center;gap:10px;
  font-size:14px;
  color:var(--text-secondary);
  margin-bottom:14px;
}
.footer__contact i{
  width:20px;
  color:var(--accent-primary);
  font-size:14px;
}
.footer__copyright{
  border-top:1px solid var(--border);
  padding-top:22px;
  text-align:center;
}
.footer__copyright p{
  font-size:13px;
  color:var(--text-muted);
}

/* ====== 响应式 ====== */
@media (max-width:1023px){
  .related-grid{grid-template-columns:repeat(2,1fr)}
  .footer__grid{grid-template-columns:1fr 1fr;gap:32px}
}
@media (max-width:767px){
  .navbar .container{padding:0 16px}
  .navbar__burgundy{display:none}
  .navbar__cta{display:none}
  .navbar__burger{
    display:flex;
    margin-left:auto;
  }
  .navbar__links{
    position:fixed;
    top:68px;right:-100%;
    width:282px;
    height:calc(100vh - 68px);
    background:var(--bg-panel);
    border-left:1px solid var(--border-strong);
    flex-direction:column;
    align-items:flex-start;
    gap:0;
    padding:18px 14px;
    transition:right .3s ease;
    overflow-y:auto;
    box-shadow:-8px 0 30px rgba(0,0,0,0.4);
  }
  .navbar__links.open{right:0}
  .navbar__links>li{
    width:100%;
    height:auto;
    flex-direction:column;
  }
  .navbar__links>li>a{
    width:100%;
    height:48px;
    display:flex;
    align-items:center;
    padding:0 12px;
    border-radius:8px;
  }
  .navbar__links>li>a::after{display:none}
  .navbar__links>li>a.active{
    background:rgba(0,227,154,0.08);
    color:var(--accent-primary);
  }
  .dropdown{
    position:static;
    transform:none;
    opacity:1;
    visibility:visible;
    width:100%;
    background:transparent;
    border:none;
    box-shadow:none;
    padding:0 0 4px 20px;
  }
  .dropdown a{
    height:44px;
    padding:0 10px;
  }
  .navbar__links>li:hover .dropdown{
    transform:none;
  }
  .post-header{padding:72px 0 24px}
  .breadcrumb-section{padding:82px 0 12px}
  .post-header .post-title{
    font-size:27px;
    line-height:1.4;
  }
  .post-excerpt{font-size:15px}
  .post-meta{gap:10px}
  .post-meta .divider{height:10px}
  .post-content-wrap{padding:36px 0 44px}
  .post-content{
    font-size:15.5px;
    line-height:1.85;
  }
  .post-content h2{
    font-size:23px;
    margin:40px 0 14px;
  }
  .post-content h3{font-size:19px}
  .related-section{padding:48px 0}
  .related-grid{grid-template-columns:1fr;gap:18px}
  .related-section .section-header{
    flex-direction:column;align-items:flex-start;gap:12px;
  }
  .cta-section{padding:52px 0}
  .cta-box{padding:36px 24px}
  .cta-box h3{font-size:22px}
  .cta-box .btn-group{flex-direction:column;width:100%}
  .cta-box .btn{width:100%}
  .footer{padding:48px 0 20px}
  .footer__grid{grid-template-columns:1fr;gap:28px;margin-bottom:32px}
  .footer__brand .navbar__logo{margin-bottom:12px}
  .not-found-section{padding:110px 0 90px}
  .not-found-box{padding:40px 24px}
  .not-found-box h1{font-size:24px}
}
@media (max-width:520px){
  .container{padding:0 16px}
  .post-meta .source{display:none}
  .related-grid{grid-template-columns:1fr}
}

/* roulang page: category1 */
:root {
            --bg-base: #0A0F14;
            --bg-panel: #111923;
            --bg-hover: #16202E;
            --border: rgba(255, 255, 255, 0.07);
            --border-strong: rgba(255, 255, 255, 0.14);
            --accent-primary: #00E39A;
            --accent-secondary: #E8B05C;
            --text-primary: #E7ECEF;
            --text-secondary: #93A3B1;
            --text-muted: #557080;
            --danger: #F07167;
            --radius: 12px;
            --radius-sm: 8px;
            --container: 1200px;
            --font-sans: "PingFang SC", "Hiragino Sans GB", "Noto Sans SC", "Microsoft YaHei UI", "Microsoft YaHei", sans-serif;
            --font-num: "Space Grotesk", "Inter", sans-serif;
            --shadow-hover: 0 8px 32px rgba(0, 0, 0, 0.25);
            --glow: 0 0 0 1px rgba(0, 227, 154, 0.3), 0 0 20px rgba(0, 227, 154, 0.15);
        }
        *,
        *::before,
        *::after {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            font-family: var(--font-sans);
            font-size: 16px;
            line-height: 1.75;
            background: var(--bg-base);
            color: var(--text-primary);
            padding-top: 68px;
            -webkit-font-smoothing: antialiased;
        }
        body.nav-open {
            overflow: hidden;
        }
        img {
            max-width: 100%;
            display: block;
        }
        a {
            color: var(--accent-primary);
            text-decoration: none;
            transition: color 0.2s ease;
        }
        a:focus-visible,
        button:focus-visible,
        input:focus-visible,
        select:focus-visible,
        textarea:focus-visible {
            outline: 2px solid var(--accent-primary);
            outline-offset: 2px;
        }
        ul,
        ol {
            list-style: none;
        }
        section[id] {
            scroll-margin-top: 80px;
        }
        .container {
            max-width: var(--container);
            margin: 0 auto;
            padding: 0 24px;
        }
        .section {
            padding: 96px 0;
        }
        .section--compact {
            padding: 72px 0;
        }
        .section__header {
            margin-bottom: 48px;
        }
        .section-tag {
            display: inline-block;
            padding: 4px 14px;
            border-radius: 999px;
            background: rgba(0, 227, 154, 0.08);
            color: var(--accent-primary);
            font-size: 12px;
            font-weight: 500;
            letter-spacing: 0.5px;
            margin-bottom: 16px;
        }
        .section-title {
            font-size: 32px;
            font-weight: 700;
            line-height: 1.3;
            letter-spacing: -0.02em;
            color: var(--text-primary);
            margin-bottom: 16px;
        }
        .section__desc {
            font-size: 14px;
            color: var(--text-secondary);
            max-width: 560px;
            line-height: 1.7;
            margin-bottom: 0;
        }
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            min-height: 44px;
            padding: 0 24px;
            border-radius: var(--radius-sm);
            font-size: 15px;
            font-weight: 600;
            border: 1px solid transparent;
            cursor: pointer;
            transition: all 0.25s ease;
            text-decoration: none;
            white-space: nowrap;
        }
        .btn-primary {
            background: var(--accent-primary);
            color: #062118;
        }
        .btn-primary:hover {
            background: #00f0a8;
            box-shadow: var(--glow);
            transform: translateY(-1px);
        }
        .btn-ghost {
            background: transparent;
            color: var(--text-primary);
            border-color: rgba(255, 255, 255, 0.4);
        }
        .btn-ghost:hover {
            border-color: var(--accent-primary);
            color: var(--accent-primary);
            transform: translateY(-1px);
        }
        .btn-block {
            width: 100%;
        }

        /* Navigavion */
        .navbar {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            height: 68px;
            background: rgba(10, 15, 20, 0.92);
            backdrop-filter: blur(10px);
            -webkit-backdrop-filter: blur(10px);
            border-bottom: 1px solid rgba(0, 227, 154, 0.15);
            z-index: 1000;
        }
        .navbar .container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 100%;
        }
        .navbar__logo {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            font-size: 18px;
            font-weight: 700;
            color: var(--text-primary);
            text-decoration: none;
            line-height: 1;
        }
        .navbar__logo svg {
            flex-shrink: 0;
        }
        .navbar__logo .highlight {
            color: var(--accent-primary);
            font-style: normal;
        }
        .navbar__links {
            display: flex;
            align-items: center;
            gap: 4px;
        }
        .navbar__links>li {
            position: relative;
        }
        .navbar__links>li>a {
            display: inline-flex;
            align-items: center;
            gap: 4px;
            padding: 10px 14px;
            font-size: 15px;
            font-weight: 500;
            color: var(--text-secondary);
            border-radius: 6px;
            transition: color 0.2s ease;
            text-decoration: none;
            position: relative;
        }
        .navbar__links>li>a:hover {
            color: var(--text-primary);
        }
        .navbar__links>li>a.active {
            color: var(--text-primary);
        }
        .navbar__links>li>a.active::after {
            content: '';
            position: absolute;
            bottom: 2px;
            left: 14px;
            right: 14px;
            height: 2px;
            border-radius: 2px;
            background: var(--accent-primary);
            box-shadow: 0 0 8px rgba(0, 227, 154, 0.4);
        }
        .dropdown {
            position: absolute;
            top: calc(100% + 8px);
            left: 0;
            min-width: 210px;
            background: var(--bg-panel);
            border: 1px solid var(--border);
            border-radius: var(--radius-sm);
            padding: 8px;
            opacity: 0;
            visibility: hidden;
            transform: translateY(8px);
            transition: all 0.25s ease;
            z-index: 50;
            box-shadow: var(--shadow-hover);
        }
        .navbar__links>li:hover .dropdown,
        .navbar__links>li:focus-within .dropdown {
            opacity: 1;
            visibility: visible;
            transform: translateY(0);
        }
        .dropdown a {
            display: flex;
            align-items: center;
            gap: 10px;
            padding: 10px 12px;
            border-radius: 6px;
            font-size: 14px;
            color: var(--text-secondary);
            text-decoration: none;
            transition: all 0.2s ease;
        }
        .dropdown a i {
            width: 16px;
            text-align: center;
            font-size: 13px;
            color: var(--text-muted);
        }
        .dropdown a:hover {
            background: var(--bg-hover);
            color: var(--accent-primary);
        }
        .dropdown a.active {
            color: var(--accent-primary);
            background: rgba(0, 227, 154, 0.05);
        }
        .navbar__cta {
            margin-left: 8px;
        }
        .navbar__burger {
            display: none;
            width: 44px;
            height: 44px;
            align-items: center;
            justify-content: center;
            background: transparent;
            border: 1px solid var(--border);
            border-radius: var(--radius-sm);
            color: var(--text-primary);
            font-size: 18px;
            cursor: pointer;
            transition: border-color 0.2s ease;
        }
        .navbar__burger:hover {
            border-color: var(--accent-primary);
        }
        .navbar__burger.active {
            border-color: var(--accent-primary);
            color: var(--accent-primary);
        }

        /* Page Banner */
        .page-banner {
            position: relative;
            min-height: 420px;
            display: flex;
            align-items: center;
            padding: 80px 0;
            overflow: hidden;
            background: var(--bg-base);
        }
        .page-banner__bg {
            position: absolute;
            inset: 0;
            background-image: url('/assets/images/backpic/back-2.webp');
            background-size: cover;
            background-position: center;
            z-index: 0;
        }
        .page-banner__bg::after {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(105deg, rgba(10, 15, 20, 0.94) 20%, rgba(10, 15, 20, 0.55) 70%, rgba(10, 15, 20, 0.75) 100%);
        }
        .page-banner .container {
            position: relative;
            z-index: 1;
        }
        .breadcrumb {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 13px;
            color: var(--text-muted);
            margin-bottom: 24px;
        }
        .breadcrumb a {
            color: var(--text-secondary);
            text-decoration: none;
            transition: color 0.2s ease;
        }
        .breadcrumb a:hover {
            color: var(--accent-primary);
        }
        .breadcrumb__current {
            color: var(--text-primary);
        }
        .breadcrumb__sep {
            color: var(--text-muted);
            opacity: 0.6;
        }
        .page-banner__title {
            font-size: 52px;
            font-weight: 800;
            line-height: 1.2;
            letter-spacing: -0.02em;
            margin-bottom: 20px;
        }
        .page-banner__subtitle {
            font-size: 18px;
            color: var(--text-secondary);
            max-width: 620px;
            line-height: 1.7;
        }

        /* Overview */
        .overview {
            padding-top: 80px;
        }
        .overview__grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 64px;
            align-items: center;
        }
        .overview__content h2 {
            margin-bottom: 20px;
        }
        .overview__content p {
            color: var(--text-secondary);
            margin-bottom: 20px;
            line-height: 1.75;
        }
        .overview__actions {
            display: flex;
            gap: 12px;
            margin-top: 28px;
            flex-wrap: wrap;
        }
        .overview__visual {
            position: relative;
        }
        .overview__visual img {
            border-radius: var(--radius);
            border: 1px solid var(--border);
            width: 100%;
            object-fit: cover;
            aspect-ratio: 4/3;
        }
        .overview__stats {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 16px;
            margin-top: 20px;
        }
        .stat-card {
            background: var(--bg-panel);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            padding: 20px 16px;
            text-align: center;
            transition: border-color 0.2s ease, transform 0.2s ease;
        }
        .stat-card:hover {
            border-color: rgba(0, 227, 154, 0.35);
            transform: translateY(-2px);
        }
        .stat-card__num {
            font-family: var(--font-num);
            font-size: 44px;
            font-weight: 700;
            color: var(--accent-primary);
            font-variant-numeric: tabular-nums;
            line-height: 1.1;
            display: block;
        }
        .stat-card__label {
            display: block;
            font-size: 13px;
            color: var(--text-secondary);
            margin-top: 8px;
            line-height: 1.4;
        }

        /* Services Matrix */
        .services {
            border-top: 1px solid var(--border);
            border-bottom: 1px solid var(--border);
            background: linear-gradient(180deg, rgba(17, 25, 35, 0.4) 0%, transparent 100%);
        }
        .services__grid {
            display: grid;
            grid-template-columns: repeat(12, 1fr);
            gap: 24px;
        }
        .service-card {
            grid-column: span 6;
            background: var(--bg-panel);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            padding: 28px;
            min-height: 180px;
            display: flex;
            flex-direction: column;
            transition: border-color 0.25s ease, background 0.25s ease, transform 0.25s ease, box-shadow 0.25s ease;
            position: relative;
        }
        .service-card.span-7 {
            grid-column: span 7;
        }
        .service-card.span-5 {
            grid-column: span 5;
        }
        .service-card.span-8 {
            grid-column: span 8;
        }
        .service-card.span-4 {
            grid-column: span 4;
        }
        .service-card:hover {
            border-color: rgba(0, 227, 154, 0.5);
            background: var(--bg-hover);
            transform: translateY(-2px);
            box-shadow: var(--shadow-hover);
        }
        .service-card__top {
            display: flex;
            justify-content: space-between;
            align-items: flex-start;
            margin-bottom: 16px;
        }
        .service-card__num {
            font-family: var(--font-num);
            font-size: 24px;
            font-weight: 600;
            color: var(--accent-primary);
            line-height: 1;
        }
        .service-card__icon {
            width: 24px;
            height: 24px;
            color: var(--text-muted);
            transition: color 0.25s ease;
        }
        .service-card:hover .service-card__icon {
            color: var(--accent-primary);
        }
        .service-card h3 {
            font-size: 19px;
            font-weight: 600;
            margin-bottom: 10px;
            color: var(--text-primary);
        }
        .service-card p {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.65;
            margin-bottom: 20px;
            flex-grow: 1;
        }
        .service-card__link {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 14px;
            color: var(--text-muted);
            text-decoration: none;
            transition: color 0.2s ease, transform 0.2s ease;
        }
        .service-card__link i {
            font-size: 12px;
            transition: transform 0.2s ease;
        }
        .service-card__link:hover {
            color: var(--accent-primary);
            transform: translateX(4px);
        }
        .service-card__link:hover i {
            transform: translateX(2px);
        }

        /* Scenarios */
        .scenarios__grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }
        .scenario-card {
            background: var(--bg-panel);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            padding: 32px 28px;
            transition: border-color 0.25s ease, transform 0.25s ease, box-shadow 0.25s ease;
        }
        .scenario-card:hover {
            border-color: rgba(0, 227, 154, 0.4);
            transform: translateY(-2px);
            box-shadow: var(--shadow-hover);
        }
        .scenario-card__icon {
            width: 48px;
            height: 48px;
            border-radius: 10px;
            background: rgba(0, 227, 154, 0.08);
            display: flex;
            align-items: center;
            justify-content: center;
            margin-bottom: 20px;
            color: var(--accent-primary);
        }
        .scenario-card__icon svg {
            width: 24px;
            height: 24px;
        }
        .scenario-card h3 {
            font-size: 18px;
            font-weight: 600;
            margin-bottom: 10px;
            color: var(--text-primary);
        }
        .scenario-card p {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.65;
        }

        /* Process */
        .process {
            border-top: 1px solid var(--border);
            background: linear-gradient(0deg, rgba(17, 25, 35, 0.35) 0%, transparent 100%);
        }
        .process__steps {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
            counter-reset: process;
        }
        .process-step {
            background: var(--bg-panel);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            padding: 32px 24px;
            position: relative;
            transition: border-color 0.25s ease, transform 0.25s ease;
        }
        .process-step:hover {
            border-color: rgba(0, 227, 154, 0.4);
            transform: translateY(-2px);
        }
        .process-step__num {
            font-family: var(--font-num);
            font-size: 40px;
            font-weight: 700;
            color: transparent;
            -webkit-text-stroke: 1px rgba(0, 227, 154, 0.5);
            line-height: 1;
            display: block;
            margin-bottom: 16px;
        }
        .process-step h3 {
            font-size: 17px;
            font-weight: 600;
            margin-bottom: 8px;
            color: var(--text-primary);
        }
        .process-step p {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.6;
        }

        /* FAQ */
        .faq__list {
            max-width: 860px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 16px;
        }
        .faq-item {
            background: var(--bg-panel);
            border: 1px solid var(--border);
            border-radius: 10px;
            overflow: hidden;
            transition: border-color 0.25s ease, background 0.25s ease;
        }
        .faq-item.active {
            border-color: rgba(0, 227, 154, 0.5);
            background: var(--bg-hover);
        }
        .faq-item__question {
            width: 100%;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            padding: 18px 24px;
            background: transparent;
            border: none;
            font-family: var(--font-sans);
            font-size: 16px;
            font-weight: 500;
            color: var(--text-primary);
            cursor: pointer;
            text-align: left;
            transition: color 0.2s ease;
        }
        .faq-item__question:hover {
            color: var(--accent-primary);
        }
        .faq-item__question i {
            flex-shrink: 0;
            font-size: 14px;
            color: var(--text-muted);
            transition: transform 0.3s ease, color 0.2s ease;
        }
        .faq-item.active .faq-item__question i {
            transform: rotate(180deg);
            color: var(--accent-primary);
        }
        .faq-item__answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.35s ease;
        }
        .faq-item.active .faq-item__answer {
            max-height: 500px;
        }
        .faq-item__answer-inner {
            padding: 0 24px 20px;
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.7;
            border-top: 1px solid var(--border);
            padding-top: 16px;
        }
        .faq-item__answer-inner ul {
            list-style: none;
            padding: 0;
        }
        .faq-item__answer-inner li {
            position: relative;
            padding-left: 16px;
            margin-bottom: 4px;
        }
        .faq-item__answer-inner li::before {
            content: '';
            position: absolute;
            left: 0;
            top: 10px;
            width: 6px;
            height: 6px;
            border-radius: 50%;
            background: var(--accent-primary);
        }

        /* Contact CTA */
        .contact {
            border-top: 1px solid var(--border);
            background: linear-gradient(180deg, rgba(17, 25, 35, 0.3) 0%, transparent 100%);
        }
        .contact__grid {
            display: grid;
            grid-template-columns: 5fr 7fr;
            gap: 56px;
            align-items: start;
        }
        .contact__info h2 {
            font-size: 28px;
            font-weight: 700;
            line-height: 1.3;
            margin-bottom: 16px;
        }
        .contact__info>p {
            color: var(--text-secondary);
            font-size: 14px;
            margin-bottom: 28px;
            max-width: 380px;
        }
        .contact__card {
            display: flex;
            flex-direction: column;
            gap: 16px;
        }
        .contact__card-item {
            display: flex;
            align-items: center;
            gap: 16px;
            padding: 18px 20px;
            background: var(--bg-panel);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            transition: border-color 0.2s ease;
        }
        .contact__card-item:hover {
            border-color: rgba(0, 227, 154, 0.3);
        }
        .contact__card-item i {
            width: 40px;
            height: 40px;
            border-radius: 8px;
            background: rgba(0, 227, 154, 0.08);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--accent-primary);
            font-size: 16px;
            flex-shrink: 0;
        }
        .contact__card-item div span {
            display: block;
            font-size: 12px;
            color: var(--text-muted);
            margin-bottom: 2px;
        }
        .contact__card-item div strong {
            font-size: 15px;
            font-weight: 600;
            color: var(--text-primary);
        }
        .contact__form {
            background: var(--bg-panel);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            padding: 36px 32px;
        }
        .form-row {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 16px;
        }
        .form-group {
            margin-bottom: 18px;
        }
        .form-group label {
            display: block;
            font-size: 13px;
            font-weight: 500;
            color: var(--text-secondary);
            margin-bottom: 8px;
        }
        .form-group label span {
            color: var(--danger);
        }
        .form-group input,
        .form-group select,
        .form-group textarea {
            width: 100%;
            background: #0C1118;
            border: 1px solid var(--border);
            border-radius: 6px;
            color: var(--text-primary);
            font-family: var(--font-sans);
            font-size: 14px;
            padding: 11px 14px;
            min-height: 44px;
            transition: border-color 0.2s ease, box-shadow 0.2s ease;
        }
        .form-group input::placeholder,
        .form-group textarea::placeholder {
            color: var(--text-muted);
        }
        .form-group input:focus,
        .form-group select:focus,
        .form-group textarea:focus {
            outline: none;
            border-color: var(--accent-primary);
            box-shadow: 0 0 0 3px rgba(0, 227, 154, 0.12);
        }
        .form-group textarea {
            resize: vertical;
            min-height: 100px;
        }
        .form-group select {
            appearance: none;
            -webkit-appearance: none;
            background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' fill='none' stroke='%23557080' stroke-width='1.5'%3E%3Cpath d='M1 1l5 5 5-5'/%3E%3C/svg%3E");
            background-repeat: no-repeat;
            background-position: right 14px center;
            padding-right: 36px;
        }
        .form-submit {
            margin-top: 8px;
        }

        /* Footer */
        .footer {
            background: var(--bg-base);
            border-top: 1px solid var(--border);
            padding: 72px 0 0;
        }
        .footer__grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1.4fr;
            gap: 48px;
            padding-bottom: 48px;
        }
        .footer__brand .navbar__logo {
            margin-bottom: 16px;
        }
        .footer__desc {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.7;
            max-width: 300px;
            margin-bottom: 24px;
        }
        .footer__social {
            display: flex;
            gap: 12px;
        }
        .footer__social a {
            width: 40px;
            height: 40px;
            border-radius: 8px;
            background: var(--bg-panel);
            border: 1px solid var(--border);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--text-secondary);
            font-size: 16px;
            transition: all 0.2s ease;
        }
        .footer__social a:hover {
            color: var(--accent-primary);
            border-color: var(--accent-primary);
            transform: translateY(-2px);
        }
        .footer__title {
            font-size: 15px;
            font-weight: 600;
            color: var(--text-primary);
            margin-bottom: 16px;
            letter-spacing: 0.02em;
        }
        .footer__links li,
        .footer__contact li {
            margin-bottom: 10px;
        }
        .footer__links a {
            color: var(--text-secondary);
            font-size: 14px;
            text-decoration: none;
            transition: color 0.2s ease;
        }
        .footer__links a:hover {
            color: var(--accent-primary);
        }
        .footer__contact li {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 14px;
            color: var(--text-secondary);
        }
        .footer__contact i {
            width: 16px;
            text-align: center;
            color: var(--text-muted);
            font-size: 13px;
        }
        .footer__copyright {
            border-top: 1px solid var(--border);
            padding: 24px 0;
            text-align: center;
            font-size: 13px;
            color: var(--text-muted);
        }

        /* Responsive */
        @media (max-width: 991px) {
            .navbar__links {
                position: fixed;
                top: 68px;
                right: -300px;
                width: 280px;
                height: calc(100vh - 68px);
                background: var(--bg-panel);
                flex-direction: column;
                align-items: flex-start;
                padding: 24px;
                transition: right 0.3s ease;
                z-index: 999;
                border-left: 1px solid var(--border);
                overflow-y: auto;
                gap: 0;
            }
            .navbar__links.open {
                right: 0;
            }
            .navbar__links>li {
                width: 100%;
            }
            .navbar__links>li>a {
                width: 100%;
                padding: 14px 0;
                font-size: 15px;
                justify-content: space-between;
                min-height: 48px;
            }
            .navbar__links>li>a.active::after {
                display: none;
            }
            .navbar__links>li>a.active {
                color: var(--accent-primary);
                border-left: 2px solid var(--accent-primary);
                padding-left: 12px;
                text-shadow: 0 0 8px rgba(0, 227, 154, 0.4);
            }
            .dropdown {
                position: static;
                opacity: 1;
                visibility: visible;
                transform: none;
                box-shadow: none;
                background: transparent;
                border: none;
                border-left: 1px solid var(--border);
                border-radius: 0;
                padding: 4px 0 4px 16px;
                margin: 0 0 8px;
                min-width: 0;
                display: block;
            }
            .dropdown a {
                padding: 10px 0;
                min-height: 44px;
            }
            .navbar__cta {
                display: none;
            }
            .navbar__burger {
                display: flex;
            }
            .overview__grid {
                grid-template-columns: 1fr;
                gap: 40px;
            }
            .scenarios__grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .process__steps {
                grid-template-columns: repeat(2, 1fr);
            }
            .contact__grid {
                grid-template-columns: 1fr;
                gap: 40px;
            }
            .footer__grid {
                grid-template-columns: 1fr 1fr;
            }
            .services__grid {
                grid-template-columns: repeat(6, 1fr);
            }
            .service-card,
            .service-card.span-7,
            .service-card.span-5,
            .service-card.span-8,
            .service-card.span-4 {
                grid-column: span 6;
            }
        }
        @media (max-width: 767px) {
            body {
                font-size: 15px;
            }
            .container {
                padding: 0 16px;
            }
            .section {
                padding: 64px 0;
            }
            .section-title {
                font-size: 24px;
            }
            .page-banner {
                min-height: 360px;
                padding: 60px 0;
            }
            .page-banner__title {
                font-size: 34px;
            }
            .page-banner__subtitle {
                font-size: 16px;
            }
            .overview__stats {
                grid-template-columns: repeat(3, 1fr);
                gap: 10px;
            }
            .stat-card {
                padding: 14px 8px;
            }
            .stat-card__num {
                font-size: 32px;
            }
            .stat-card__label {
                font-size: 12px;
            }
            .services__grid,
            .service-card,
            .service-card.span-7,
            .service-card.span-5,
            .service-card.span-8,
            .service-card.span-4 {
                grid-column: span 12;
            }
            .scenarios__grid {
                grid-template-columns: 1fr;
            }
            .process__steps {
                grid-template-columns: 1fr;
            }
            .overview__actions .btn {
                width: 100%;
            }
            .contact__form {
                padding: 24px 20px;
            }
            .form-row {
                grid-template-columns: 1fr;
                gap: 0;
            }
            .footer__grid {
                grid-template-columns: 1fr;
                gap: 32px;
                padding-bottom: 32px;
            }
            .footer__social {
                gap: 8px;
            }
            .faq-item__question {
                font-size: 15px;
                padding: 16px 16px;
            }
            .faq-item__answer-inner {
                padding: 0 16px 16px;
            }
        }
        @media (max-width: 480px) {
            .overview__stats {
                grid-template-columns: repeat(3, 1fr);
            }
            .stat-card__num {
                font-size: 24px;
            }
            .stat-card__label {
                font-size: 11px;
            }
            .service-card {
                padding: 22px 18px;
            }
            .page-banner__title {
                font-size: 30px;
            }
        }

/* roulang page: category2 */
:root{
  --bg-base:#0A0F14;
  --bg-panel:#111923;
  --bg-hover:#16202E;
  --border:rgba(255,255,255,0.07);
  --border-strong:rgba(255,255,255,0.14);
  --accent-primary:#00E39A;
  --accent-secondary:#E8B05C;
  --text-primary:#E7ECEF;
  --text-secondary:#93A3B1;
  --text-muted:#557080;
  --danger:#F07167;
  --radius:12px;
  --radius-btn:8px;
  --shadow-hover:0 8px 32px rgba(0,0,0,0.25);
  --glow:0 0 0 1px rgba(0,227,154,0.3),0 0 20px rgba(0,227,154,0.15);
  --container:1200px;
  --font-cn:"PingFang SC","Hiragino Sans GB","Noto Sans SC","Microsoft YaHei UI","Microsoft YaHei",sans-serif;
  --font-num:"Space Grotesk","Inter",var(--font-cn);
}
*{margin:0;padding:0;box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  background:var(--bg-base);
  color:var(--text-primary);
  font-family:var(--font-cn);
  font-size:16px;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
}
a{color:var(--accent-primary);text-decoration:none;transition:color .2s ease,border-color .2s ease;}
a:hover{color:var(--accent-primary);}
img{max-width:100%;display:block;}
button,input,select,textarea{font-family:inherit;font-size:inherit;color:inherit;}
:focus-visible{outline:2px solid var(--accent-primary);outline-offset:2px;box-shadow:0 0 0 4px rgba(0,227,154,0.12);}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 24px;}

/* ===== 按钮 ===== */
.btn{
  display:inline-flex;align-items:center;justify-content:center;
  min-height:44px;padding:0 24px;border-radius:var(--radius-btn);
  font-weight:600;font-size:15px;cursor:pointer;border:1px solid transparent;
  transition:background .2s ease,color .2s ease,border-color .2s ease,box-shadow .2s ease,transform .2s ease;
}
.btn:active{transform:translateY(1px);}
.btn-primary{background:var(--accent-primary);color:#062118;border-color:var(--accent-primary);}
.btn-primary:hover{background:#1bF4b2;color:#04150d;box-shadow:0 0 0 1px rgba(0,227,154,.3),0 0 24px rgba(0,227,154,.18);transform:translateY(-1px);}
.btn-outline{background:transparent;color:#fff;border-color:rgba(255,255,255,.35);}
.btn-outline:hover{background:rgba(255,255,255,.06);border-color:#fff;transform:translateY(-1px);}

/* ===== 导航 ===== */
.navbar{
  position:fixed;top:0;left:0;width:100%;height:68px;z-index:1000;
  background:rgba(10,15,20,0.92);
  backdrop-filter:blur(10px);
  -webkit-backdrop-filter:blur(10px);
  border-bottom:1px solid rgba(0,227,154,0.15);
}
.navbar .container{display:flex;align-items:center;justify-content:space-between;height:100%;gap:20px;}
.navbar__logo{
  display:inline-flex;align-items:center;gap:10px;
  color:var(--text-primary);font-size:19px;font-weight:700;letter-spacing:.5px;
  flex-shrink:0;
}
.navbar__logo svg{flex-shrink:0;}
.navbar__logo .highlight{font-style:normal;color:var(--accent-primary);}
.navbar__links{display:flex;align-items:center;gap:6px;list-style:none;}
.navbar__links>li{position:relative;}
.navbar__links>li>a{
  display:inline-flex;align-items:center;gap:6px;height:68px;padding:0 16px;
  color:var(--text-secondary);font-size:15px;font-weight:500;
  border-bottom:2px solid transparent;transition:color .2s ease,border-color .2s ease,text-shadow .2s ease;
}
.navbar__links>li>a:hover{color:#fff;}
.navbar__links>li>a.active{
  color:#fff;border-bottom-color:var(--accent-primary);
  text-shadow:0 0 8px rgba(0,227,154,.4);
}
.dropdown{
  position:absolute;top:calc(100% + 8px);left:0;min-width:220px;
  background:var(--bg-panel);border:1px solid var(--border-strong);border-radius:10px;
  padding:8px;display:flex;flex-direction:column;gap:2px;
  opacity:0;visibility:hidden;transform:translateY(8px);
  transition:opacity .2s ease,transform .2s ease,visibility .2s ease;
  box-shadow:0 16px 40px rgba(0,0,0,.35);
}
.navbar__links>li:hover .dropdown,
.navbar__links>li:focus-within .dropdown{opacity:1;visibility:visible;transform:translateY(0);}
.dropdown a{
  display:flex;align-items:center;gap:10px;padding:10px 12px;border-radius:6px;
  color:var(--text-secondary);font-size:14px;font-weight:500;transition:background .2s,color .2s;
}
.dropdown a i{width:16px;color:var(--accent-primary);font-size:14px;}
.dropdown a:hover{background:var(--bg-hover);color:#fff;}
.dropdown a.dropdown__current{color:var(--accent-primary);background:rgba(0,227,154,.06);border-left:2px solid var(--accent-primary);}
.navbar__cta{flex-shrink:0;}
.navbar__burger{
  display:none;width:44px;height:44px;background:transparent;border:1px solid var(--border);
  border-radius:8px;color:var(--text-primary);font-size:18px;cursor:pointer;align-items:center;justify-content:center;
}

/* ===== 页面横幅 ===== */
.banner{
  position:relative;padding:180px 0 100px;min-height:480px;
  background-image:url('/assets/images/backpic/back-3.webp');
  background-size:cover;background-position:center;
  display:flex;align-items:center;
}
.banner::before{
  content:"";position:absolute;inset:0;
  background:linear-gradient(105deg,rgba(10,15,20,0.94) 25%,rgba(10,15,20,0.35) 100%);
}
.banner .container{position:relative;z-index:1;}
.breadcrumb{
  display:flex;flex-wrap:wrap;align-items:center;gap:8px;margin-bottom:24px;
  font-size:13px;color:var(--text-muted);
}
.breadcrumb a{color:var(--text-secondary);}
.breadcrumb a:hover{color:var(--accent-primary);}
.breadcrumb .sep{color:var(--text-muted);opacity:.6;}
.banner h1{
  font-size:56px;font-weight:800;line-height:1.2;letter-spacing:-1px;
  animation:fadeUp .5s ease-out both;
  max-width:760px;
}
.banner h1 .accent{color:var(--accent-primary);}
.banner__desc{
  margin-top:20px;font-size:19px;color:var(--text-secondary);max-width:640px;line-height:1.8;
  animation:fadeUp .6s .1s ease-out both;
}
.banner__actions{display:flex;flex-wrap:wrap;gap:16px;margin-top:36px;animation:fadeUp .6s .2s ease-out both;}
@keyframes fadeUp{from{opacity:0;transform:translateY(16px);}to{opacity:1;transform:none;}}

/* ===== 区块通用 ===== */
.section{padding:96px 0;border-bottom:1px solid var(--border);}
.section:last-of-type{border-bottom:none;}
.section-kicker{
  display:inline-block;font-size:13px;font-weight:600;color:var(--accent-primary);
  letter-spacing:2px;text-transform:uppercase;margin-bottom:12px;
}
.section-title{
  font-size:32px;font-weight:700;line-height:1.3;letter-spacing:-.5px;
  margin-bottom:12px;
}
.section-sub{font-size:14px;color:var(--text-muted);max-width:640px;margin-bottom:44px;line-height:1.7;}

/* ===== 简介区 ===== */
.intro-grid{display:grid;grid-template-columns:1.1fr .9fr;gap:56px;align-items:center;}
.intro-copy p{color:var(--text-secondary);font-size:16px;line-height:1.85;margin-bottom:18px;}
.intro-copy p strong{color:var(--text-primary);font-weight:600;}
.intro-list{list-style:none;margin-top:24px;display:grid;gap:14px;}
.intro-list li{display:flex;gap:12px;align-items:flex-start;color:var(--text-secondary);font-size:15px;}
.intro-list li i{color:var(--accent-primary);margin-top:5px;font-size:14px;}
.intro-media{position:relative;border-radius:var(--radius);overflow:hidden;border:1px solid var(--border-strong);}
.intro-media img{width:100%;height:360px;object-fit:cover;}
.intro-media::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,transparent 55%,rgba(10,15,20,.7));pointer-events:none;}

/* ===== 覆盖范围卡片 ===== */
.scope-grid{display:grid;grid-template-columns:repeat(12,1fr);gap:24px;}
.scope-card{
  grid-column:span 6;background:var(--bg-panel);border:1px solid var(--border);
  border-radius:var(--radius);padding:32px;min-height:200px;position:relative;overflow:hidden;
  transition:border-color .2s ease,background .2s ease,transform .2s ease,box-shadow .2s ease;
}
.scope-card:nth-child(3){grid-column:span 8;}
.scope-card:nth-child(4){grid-column:span 4;}
.scope-card:hover{
  border-color:rgba(0,227,154,.5);background:var(--bg-hover);
  transform:translateY(-2px);box-shadow:var(--shadow-hover);
}
.scope-card__num{
  font-family:var(--font-num);font-size:14px;color:var(--accent-primary);
  letter-spacing:1px;margin-bottom:18px;display:block;
}
.scope-card__icon{width:48px;height:48px;margin-bottom:20px;color:var(--accent-primary);}
.scope-card h3{font-size:20px;font-weight:600;margin-bottom:10px;}
.scope-card p{font-size:14px;color:var(--text-secondary);line-height:1.75;}
.scope-card__link{
  display:inline-flex;align-items:center;gap:6px;margin-top:20px;
  font-size:14px;color:var(--text-muted);transition:color .2s,gap .2s;
}
.scope-card__link:hover{color:var(--accent-primary);gap:10px;}
.scope-card__badge{
  position:absolute;top:24px;right:24px;font-size:12px;color:var(--accent-secondary);
  background:rgba(232,176,92,.1);border-radius:999px;padding:4px 12px;
  letter-spacing:.5px;
}

/* ===== 流程 ===== */
.process{background:var(--bg-panel);}
.process-steps{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;margin-top:24px;}
.step{
  position:relative;background:var(--bg-base);border:1px solid var(--border);
  border-radius:var(--radius);padding:28px;min-height:160px;
  transition:border-color .2s,transform .2s,box-shadow .2s;
}
.step:hover{border-color:rgba(0,227,154,.4);transform:translateY(-2px);box-shadow:var(--shadow-hover);}
.step__num{
  font-family:var(--font-num);font-size:44px;font-weight:700;color:var(--accent-primary);
  line-height:1;display:block;margin-bottom:20px;font-variant-numeric:tabular-nums;
}
.step h3{font-size:18px;font-weight:600;margin-bottom:8px;}
.step p{font-size:14px;color:var(--text-secondary);line-height:1.7;}

/* ===== 对比 ===== */
.compare-grid{display:grid;grid-template-columns:1fr 1fr;gap:24px;}
.compare-col{
  border-radius:var(--radius);padding:32px;border:1px solid var(--border);
}
.compare-col--old{background:#0C1118;}
.compare-col--new{
  background:var(--bg-panel);border-color:rgba(0,227,154,.4);
  border-left:2px solid var(--accent-primary);
  box-shadow:0 0 24px rgba(0,227,154,.05);
}
.compare-col h3{font-size:20px;font-weight:600;margin-bottom:24px;display:flex;align-items:center;gap:10px;}
.compare-col--old h3{color:var(--text-secondary);}
.compare-col--new h3{color:var(--text-primary);}
.compare-col--new h3 i{color:var(--accent-primary);}
.compare-list{list-style:none;}
.compare-list li{
  display:flex;align-items:flex-start;gap:12px;padding:15px 0;
  border-bottom:1px solid var(--border);font-size:15px;color:var(--text-secondary);
}
.compare-list li:last-child{border-bottom:none;}
.compare-list .icon{flex-shrink:0;margin-top:3px;}
.compare-list .icon--x{color:var(--danger);}
.compare-list .icon--ok{color:var(--accent-primary);}
.compare-col--new .compare-list li{color:var(--text-primary);}

/* ===== FAQ ===== */
.faq-wrap{max-width:820px;margin:0 auto;}
.faq-item{
  background:var(--bg-panel);border:1px solid var(--border);border-radius:10px;
  margin-bottom:14px;overflow:hidden;transition:border-color .2s,background .2s;
}
.faq-item.open{border-color:rgba(0,227,154,.5);background:var(--bg-hover);}
.faq-item__q{
  display:flex;justify-content:space-between;align-items:center;
  width:100%;padding:18px 24px;background:transparent;border:none;
  color:var(--text-primary);font-size:16px;font-weight:600;text-align:left;
  cursor:pointer;transition:color .2s;
}
.faq-item__q:hover{color:var(--accent-primary);}
.faq-item__q i{transition:transform .3s ease;color:var(--accent-primary);font-size:14px;}
.faq-item.open .faq-item__q i{transform:rotate(180deg);}
.faq-item__a{
  max-height:0;overflow:hidden;transition:max-height .35s ease,padding .35s ease;
  color:var(--text-secondary);font-size:15px;line-height:1.8;
}
.faq-item.open .faq-item__a{max-height:600px;padding:0 24px 24px;}
.faq-item__a ul{margin-left:18px;margin-top:8px;}
.faq-item__a li{margin-top:4px;}

/* ===== CTA / 表单 ===== */
.cta-section{background:var(--bg-panel);border-bottom:none;}
.cta-grid{display:grid;grid-template-columns:5fr 7fr;gap:56px;align-items:start;}
.cta-info h3{font-size:26px;font-weight:700;margin-bottom:16px;}
.cta-info p{color:var(--text-secondary);font-size:15px;line-height:1.8;margin-bottom:28px;}
.cta-contact{display:grid;gap:14px;}
.cta-contact-item{
  display:flex;align-items:center;gap:14px;color:var(--text-secondary);font-size:15px;
  background:var(--bg-base);border:1px solid var(--border);border-radius:8px;padding:14px 18px;
  transition:border-color .2s;
}
.cta-contact-item:hover{border-color:rgba(0,227,154,.4);}
.cta-contact-item i{width:20px;color:var(--accent-primary);}
.cta-form{background:var(--bg-base);border:1px solid var(--border-strong);border-radius:var(--radius);padding:32px;}
.form-row{display:grid;grid-template-columns:1fr 1fr;gap:18px;}
.form-group{margin-bottom:18px;}
.form-group label{display:block;font-size:14px;font-weight:500;margin-bottom:8px;color:var(--text-primary);}
.form-group label .required{color:var(--danger);}
.form-group input,
.form-group select,
.form-group textarea{
  width:100%;min-height:44px;background:#0C1118;border:1px solid var(--border);
  border-radius:6px;color:var(--text-primary);padding:10px 14px;font-size:15px;
  transition:border-color .2s,box-shadow .2s;
}
.form-group textarea{min-height:100px;resize:vertical;}
.form-group input::placeholder,
.form-group textarea::placeholder{color:var(--text-muted);}
.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus{
  border-color:var(--accent-primary);
  box-shadow:0 0 0 3px rgba(0,227,154,.12);
}
.form-group .error-text{font-size:12px;color:var(--danger);display:none;margin-top:6px;}
.form-group.has-error input{border-color:var(--danger);}
.form-group.has-error .error-text{display:block;}
.form-submit{width:100%;margin-top:6px;}
.form-note{font-size:12px;color:var(--text-muted);margin-top:12px;text-align:center;}

/* ===== 页脚 ===== */
.footer{background:var(--bg-base);border-top:1px solid var(--border);padding:60px 0 0;}
.footer__grid{
  display:grid;grid-template-columns:2fr 1fr 1fr 1.2fr;gap:40px;padding-bottom:48px;
}
.footer__brand .navbar__logo{margin-bottom:16px;font-size:18px;}
.footer__desc{font-size:14px;color:var(--text-secondary);line-height:1.8;max-width:300px;}
.footer__social{display:flex;gap:12px;margin-top:20px;}
.footer__social a{
  width:40px;height:40px;border-radius:8px;border:1px solid var(--border);
  display:flex;align-items:center;justify-content:center;color:var(--text-secondary);
  font-size:16px;transition:border-color .2s,color .2s,box-shadow .2s;
}
.footer__social a:hover{color:var(--accent-primary);border-color:rgba(0,227,154,.4);box-shadow:var(--glow);}
.footer__title{font-size:15px;font-weight:600;margin-bottom:18px;color:var(--text-primary);}
.footer__links{list-style:none;display:grid;gap:10px;}
.footer__links a{color:var(--text-secondary);font-size:14px;transition:color .2s;}
.footer__links a:hover{color:var(--accent-primary);}
.footer__contact{list-style:none;display:grid;gap:10px;}
.footer__contact li{display:flex;align-items:center;gap:10px;color:var(--text-secondary);font-size:14px;}
.footer__contact i{width:18px;color:var(--accent-primary);}
.footer__copyright{border-top:1px solid var(--border);padding:20px 0;text-align:center;}
.footer__copyright p{font-size:13px;color:var(--text-muted);}

/* ===== 滚动显示 ===== */
.js .reveal{opacity:0;transform:translateY(16px);transition:opacity .5s ease-out,transform .5s ease-out;}
.js .reveal.visible{opacity:1;transform:none;}
@media (prefers-reduced-motion:reduce){
  .js .reveal{opacity:1;transform:none;transition:none;}
  .banner h1,.banner__desc,.banner__actions{animation:none;}
  html{scroll-behavior:auto;}
}

/* ===== 响应式 ===== */
@media (max-width:1023px){
  .banner h1{font-size:44px;}
  .process-steps{grid-template-columns:1fr 1fr;}
  .intro-grid{grid-template-columns:1fr;gap:32px;}
  .scope-card,.scope-card:nth-child(3),.scope-card:nth-child(4){grid-column:span 12;}
  .cta-grid{grid-template-columns:1fr;gap:32px;}
  .footer__grid{grid-template-columns:1fr 1fr;gap:32px;}
}
@media (max-width:767px){
  body{padding-top:68px;}
  .navbar .container{padding:0 16px;}
  .navbar__burger{display:flex;}
  .navbar__cta{display:none;}
  .navbar__links{
    position:fixed;top:68px;right:-100%;width:min(300px,82%);height:calc(100vh - 68px);
    background:rgba(10,15,20,0.98);flex-direction:column;align-items:stretch;
    padding:24px 20px;gap:4px;transition:right .3s ease;
    box-shadow:-16px 0 40px rgba(0,0,0,.4);
    overflow-y:auto;
  }
  body.nav-open .navbar__links{right:0;}
  .navbar__links>li>a{height:48px;justify-content:flex-start;border-bottom:none;border-left:2px solid transparent;padding:0 14px;}
  .navbar__links>li>a.active{border-left-color:var(--accent-primary);border-bottom:none;}
  .dropdown{position:static;opacity:1;visibility:visible;transform:none;box-shadow:none;border:none;background:transparent;padding:0 0 8px 14px;}
  .dropdown a{padding:10px 12px;}
  .banner{padding:110px 0 64px;min-height:auto;}
  .banner h1{font-size:34px;}
  .banner__desc{font-size:17px;}
  .section{padding:64px 0;}
  .section-title{font-size:24px;}
  .process-steps{grid-template-columns:1fr;}
  .compare-grid{grid-template-columns:1fr;}
  .form-row{grid-template-columns:1fr;}
  .footer__grid{grid-template-columns:1fr;gap:28px;}
  .banner__actions .btn{flex:1 1 100%;}
}
@media (min-width:768px) and (max-width:1023px){
  .compare-grid{grid-template-columns:1fr;}
}