/* roulang page: index */
:root {
  --bg-main: #071A2B;
  --bg-primary: #0B2A45;
  --bg-secondary: #123A5C;
  --accent: #00E5A0;
  --accent-dark: #062018;
  --warn: #FFB800;
  --text-main: #E6EDF5;
  --text-secondary: #A9BCCD;
  --text-muted: #70879B;
  --glass-bg: rgba(255,255,255,0.05);
  --glass-border: rgba(255,255,255,0.12);
  --radius-lg: 18px;
  --radius-sm: 12px;
  --shadow-card: 0 8px 30px rgba(0,0,0,0.35);
  --shadow-hover: 0 12px 40px rgba(0,0,0,0.5);
  --font-main: 'PingFang SC','Microsoft YaHei','Noto Sans SC',sans-serif;
  --transition-base: all 0.3s ease;
}
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0;}
html{scroll-behavior:smooth;}
body{
  font-family:var(--font-main);
  background:var(--bg-main);
  color:var(--text-main);
  font-size:16px;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;display:block;}
a{color:var(--accent);text-decoration:none;transition:var(--transition-base);}
a:hover{color:var(--accent);}
ul,ol{list-style:none;}
button,input,select,textarea{font-family:inherit;font-size:inherit;line-height:inherit;}
.container{max-width:1280px;margin:0 auto;padding:0 24px;}
.section{padding:72px 0;}
.section-sm{padding:48px 0;}
@media(max-width:640px){.section{padding:48px 0;}}

.container{max-width:1280px;margin:0 auto;padding:0 24px;}

.site-header{
  position:fixed;top:0;left:0;width:100%;z-index:100;
  background:rgba(7,26,43,0.92);
  backdrop-filter:blur(18px) saturate(140%);
  -webkit-backdrop-filter:blur(18px) saturate(140%);
  border-bottom:1px solid rgba(255,255,255,0.06);
  transition:box-shadow 0.3s ease;
}
.site-header.scrolled{box-shadow:0 4px 30px rgba(0,0,0,0.5);}
.header-top{height:64px;display:flex;align-items:center;}
.header-top-inner{display:flex;align-items:center;justify-content:space-between;width:100%;gap:20px;}
.brand-logo{display:flex;align-items:center;gap:12px;flex-shrink:0;}
.logo-mark{
  width:38px;height:38px;border-radius:12px;
  background:linear-gradient(135deg,var(--accent),#088a7a);
  display:flex;align-items:center;justify-content:center;
  font-size:18px;color:var(--accent-dark);
  box-shadow:0 0 20px rgba(0,229,160,0.3);
}
.logo-text{font-size:20px;font-weight:800;color:var(--text-main);letter-spacing:0.5px;white-space:nowrap;}
.header-actions{display:flex;align-items:center;gap:16px;}
.header-search{display:flex;align-items:center;background:rgba(255,255,255,0.06);border:1px solid rgba(255,255,255,0.12);border-radius:999px;padding:4px 6px 4px 16px;transition:border-color 0.3s;}
.header-search:focus-within{border-color:var(--accent);box-shadow:0 0 0 3px rgba(0,229,160,0.15);}
.header-search input{background:transparent;border:none;outline:none;color:var(--text-main);font-size:14px;width:180px;}
.header-search input::placeholder{color:var(--text-muted);}
.header-search button{background:transparent;border:none;color:var(--text-secondary);padding:6px 10px;border-radius:999px;cursor:pointer;transition:color 0.3s;}
.header-search button:hover{color:var(--accent);}
.header-nav{border-top:1px solid rgba(255,255,255,0.05);background:rgba(7,26,43,0.6);}
.nav-tabs-scroll{overflow-x:auto;scrollbar-width:none;-ms-overflow-style:none;}
.nav-tabs-scroll::-webkit-scrollbar{display:none;}
.nav-tabs{display:flex;gap:8px;padding:8px 0;min-width:max-content;}
.nav-tab{
  display:inline-flex;align-items:center;padding:8px 22px;
  border-radius:999px;
  background:rgba(255,255,255,0.04);
  color:var(--text-secondary);
  font-size:15px;font-weight:500;
  border:1px solid transparent;
  transition:var(--transition-base);
  white-space:nowrap;
}
.nav-tab:hover{background:rgba(255,255,255,0.08);color:var(--text-main);}
.nav-tab.active{background:var(--accent);color:var(--accent-dark);font-weight:600;box-shadow:0 0 18px rgba(0,229,160,0.25);}

.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;border-radius:999px;font-size:15px;font-weight:600;padding:12px 28px;border:1px solid transparent;cursor:pointer;transition:var(--transition-base);text-align:center;line-height:1.2;}
.btn-primary{background:var(--accent);color:var(--accent-dark);box-shadow:0 0 24px rgba(0,229,160,0.35);}
.btn-primary:hover{background:#1cf0b0;color:var(--accent-dark);box-shadow:0 0 32px rgba(0,229,160,0.5);transform:translateY(-1px);}
.btn-primary:active{transform:translateY(1px);}
.btn-outline{background:transparent;border-color:rgba(255,255,255,0.35);color:var(--text-main);}
.btn-outline:hover{border-color:var(--accent);color:var(--accent);}
.btn-sm{padding:8px 20px;font-size:14px;}
.btn-xs{padding:6px 16px;font-size:13px;}

.tag{display:inline-flex;align-items:center;padding:3px 12px;border-radius:999px;font-size:12px;font-weight:600;line-height:1.6;}
.tag-accent{background:rgba(0,229,160,0.12);color:var(--accent);border:1px solid rgba(0,229,160,0.25);}
.tag-warn{background:rgba(255,184,0,0.12);color:var(--warn);border:1px solid rgba(255,184,0,0.25);}
.tag-blue{background:rgba(18,58,92,0.5);color:var(--text-secondary);border:1px solid rgba(255,255,255,0.1);}

.hero{
  position:relative;
  padding:180px 0 80px;
  background:url('/assets/images/backpic/back-1.png') center center/cover no-repeat;
  min-height:100vh;
  display:flex;align-items:center;
}
.hero::before{
  content:'';position:absolute;inset:0;
  background:
    radial-gradient(ellipse at 20% 20%,rgba(0,229,160,0.12),transparent 60%),
    radial-gradient(ellipse at 80% 80%,rgba(255,184,0,0.08),transparent 50%),
    linear-gradient(135deg,rgba(7,26,43,0.94),rgba(7,26,43,0.82));
}
.hero::after{
  content:'';position:absolute;inset:0;
  background-image:linear-gradient(rgba(255,255,255,0.03) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,0.03) 1px,transparent 1px);
  background-size:60px 60px;pointer-events:none;
}
.hero-content{position:relative;z-index:2;max-width:720px;}
.hero h1{
  font-size:46px;font-weight:800;line-height:1.3;color:var(--text-main);
  margin-bottom:20px;letter-spacing:1px;
}
.hero h1 .highlight{color:var(--accent);}
.hero-sub{font-size:18px;line-height:1.75;color:var(--text-secondary);margin-bottom:32px;max-width:620px;}
.hero-ctas{display:flex;flex-wrap:wrap;gap:16px;margin-bottom:56px;}
.hero-stats{
  display:flex;flex-wrap:wrap;gap:20px;
  background:var(--glass-bg);
  border:1px solid var(--glass-border);
  border-radius:var(--radius-lg);
  padding:24px 32px;
  backdrop-filter:blur(18px) saturate(140%);
  -webkit-backdrop-filter:blur(18px) saturate(140%);
  box-shadow:var(--shadow-card);
}
.hero-stat{padding-right:24px;border-right:1px solid rgba(255,255,255,0.08);min-width:140px;}
.hero-stat:last-child{border-right:none;padding-right:0;}
.hero-stat .num{font-size:34px;font-weight:800;color:var(--accent);font-variant-numeric:tabular-nums;text-shadow:0 0 30px rgba(0,229,160,0.4);}
.hero-stat .label{font-size:13px;color:var(--text-muted);margin-top:4px;}
@media(max-width:640px){
  .hero{padding:140px 0 56px;}
  .hero h1{font-size:32px;}
  .hero-sub{font-size:16px;}
  .hero-stats{padding:16px 20px;gap:12px;}
  .hero-stat{padding-right:14px;min-width:110px;}
  .hero-stat .num{font-size:24px;}
}

.section-title{font-size:32px;font-weight:800;color:var(--text-main);margin-bottom:12px;line-height:1.4;}
.section-sub{font-size:16px;color:var(--text-secondary);max-width:680px;margin-bottom:48px;line-height:1.7;}
.section-title-center,.section-sub-center{text-align:center;margin-left:auto;margin-right:auto;}
@media(max-width:640px){.section-title{font-size:24px;}}

.solutions{position:relative;}
.solutions::before{
  content:'';position:absolute;top:0;right:0;width:400px;height:400px;
  background:radial-gradient(circle,rgba(18,58,92,0.4),transparent 70%);
  pointer-events:none;
}
.solutions-grid{display:grid;grid-template-columns:1.2fr 0.8fr;gap:24px;position:relative;z-index:2;}
.solution-card{
  background:var(--glass-bg);
  border:1px solid var(--glass-border);
  border-radius:var(--radius-lg);
  padding:36px;
  backdrop-filter:blur(18px) saturate(140%);
  -webkit-backdrop-filter:blur(18px) saturate(140%);
  box-shadow:var(--shadow-card);
  transition:var(--transition-base);
  position:relative;overflow:hidden;
}
.solution-card::after{
  content:'';position:absolute;top:0;left:0;right:0;height:2px;
  background:linear-gradient(90deg,var(--accent),transparent);
  opacity:0;transition:opacity 0.3s;
}
.solution-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-hover);}
.solution-card:hover::after{opacity:1;}
.solution-card.large{padding:40px;display:flex;flex-direction:column;justify-content:space-between;min-height:100%;}
.solution-card.large .sol-img{border-radius:var(--radius-sm);overflow:hidden;margin-bottom:24px;}
.solution-card.large .sol-img img{width:100%;height:220px;object-fit:cover;transition:transform 0.4s;}
.solution-card.large:hover .sol-img img{transform:scale(1.03);}
.sol-icon{
  width:52px;height:52px;border-radius:14px;
  background:linear-gradient(135deg,rgba(0,229,160,0.2),rgba(0,229,160,0.05));
  border:1px solid rgba(0,229,160,0.25);
  display:flex;align-items:center;justify-content:center;
  font-size:22px;color:var(--accent);
  margin-bottom:20px;
}
.sol-icon.warn{
  background:linear-gradient(135deg,rgba(255,184,0,0.2),rgba(255,184,0,0.05));
  border-color:rgba(255,184,0,0.25);
  color:var(--warn);
}
.solution-card h3{font-size:19px;font-weight:700;margin-bottom:12px;color:var(--text-main);}
.solution-card p{font-size:14px;color:var(--text-secondary);line-height:1.7;margin-bottom:16px;}
.sol-link{display:inline-flex;align-items:center;gap:8px;font-size:14px;color:var(--accent);}
.sol-link:hover{color:#fff;gap:12px;}
.sol-link i{font-size:12px;}
.sol-sm-list{display:flex;flex-direction:column;gap:24px;height:100%;}
.solution-card.small{flex:1;display:flex;flex-direction:column;justify-content:center;padding:28px;}
@media(max-width:1024px){
  .solutions-grid{grid-template-columns:1fr;}
  .sol-sm-list{flex-direction:row;}
  .solution-card.small{flex:1;}
}
@media(max-width:640px){
  .sol-sm-list{flex-direction:column;}
  .solution-card.large{padding:28px;}
}

.stats-section{background:linear-gradient(180deg,var(--bg-main),var(--bg-primary));position:relative;overflow:hidden;}
.stats-section::before{
  content:'';position:absolute;top:-100px;left:50%;transform:translateX(-50%);
  width:600px;height:300px;background:radial-gradient(ellipse,rgba(0,229,160,0.08),transparent 70%);
  pointer-events:none;
}
.stats-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;position:relative;z-index:2;}
.stat-card{
  background:rgba(7,26,43,0.6);
  border:1px solid var(--glass-border);
  border-radius:var(--radius-lg);
  padding:36px 28px;
  text-align:center;
  backdrop-filter:blur(12px);
  transition:var(--transition-base);
}
.stat-card:hover{transform:translateY(-3px);border-color:rgba(0,229,160,0.3);box-shadow:0 12px 40px rgba(0,0,0,0.45);}
.stat-card .num{font-size:40px;font-weight:800;color:var(--accent);font-variant-numeric:tabular-nums;text-shadow:0 0 30px rgba(0,229,160,0.4);line-height:1.2;}
.stat-card .unit{font-size:18px;color:var(--text-secondary);font-weight:400;}
.stat-card .desc{font-size:14px;color:var(--text-muted);margin-top:10px;}
@media(max-width:1024px){.stats-grid{grid-template-columns:repeat(2,1fr);}}
@media(max-width:640px){.stats-grid{grid-template-columns:1fr;}}

.cta-band{
  position:relative;
  background:url('/assets/images/backpic/back-2.webp') center center/cover no-repeat;
  border-radius:24px;
  overflow:hidden;
  padding:56px 48px;
  text-align:center;
}
.cta-band::before{
  content:'';position:absolute;inset:0;
  background:linear-gradient(135deg,rgba(7,26,43,0.92),rgba(7,26,43,0.75));
}
.cta-band-content{position:relative;z-index:2;}
.cta-band h2{font-size:30px;font-weight:800;margin-bottom:12px;}
.cta-band p{font-size:16px;color:var(--text-secondary);margin-bottom:28px;max-width:600px;margin-left:auto;margin-right:auto;}
@media(max-width:640px){.cta-band{padding:40px 24px;}.cta-band h2{font-size:22px;}}

.news-section{background:var(--bg-main);position:relative;}
.news-layout{display:grid;grid-template-columns:0.9fr 1.4fr;gap:32px;}
.news-featured{
  background:var(--glass-bg);
  border:1px solid var(--glass-border);
  border-radius:var(--radius-lg);
  overflow:hidden;
  backdrop-filter:blur(18px);
  transition:var(--transition-base);
  display:flex;flex-direction:column;
}
.news-featured:hover{box-shadow:var(--shadow-hover);transform:translateY(-3px);}
.news-featured img{width:100%;height:220px;object-fit:cover;}
.news-featured-body{padding:28px;display:flex;flex-direction:column;flex:1;}
.news-featured-body h3{font-size:18px;font-weight:700;margin:12px 0 10px;color:var(--text-main);}
.news-featured-body p{font-size:14px;color:var(--text-secondary);line-height:1.7;margin-bottom:16px;flex:1;}
.news-list{display:flex;flex-direction:column;gap:16px;}
.news-item{
  background:var(--glass-bg);
  border:1px solid var(--glass-border);
  border-radius:var(--radius-sm);
  padding:20px 24px;
  transition:var(--transition-base);
}
.news-item:hover{background:rgba(255,255,255,0.08);border-color:rgba(0,229,160,0.3);transform:translateX(4px);}
.news-item-top{display:flex;align-items:center;gap:10px;margin-bottom:8px;flex-wrap:wrap;}
.news-item h3{font-size:16px;font-weight:600;margin-bottom:6px;}
.news-item h3 a{color:var(--text-main);}
.news-item h3 a:hover{color:var(--accent);}
.news-item p{font-size:14px;color:var(--text-muted);line-height:1.6;margin-bottom:10px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.news-date{font-size:12px;color:var(--text-muted);}
.news-link{font-size:13px;color:var(--accent);display:inline-flex;align-items:center;gap:6px;}
.news-link:hover{gap:10px;color:#fff;}
.empty-state{
  background:var(--glass-bg);
  border:1px dashed var(--glass-border);
  border-radius:var(--radius-lg);
  padding:48px;
  text-align:center;
  color:var(--text-muted);
}
.empty-state i{font-size:32px;margin-bottom:12px;display:block;color:var(--text-muted);}
@media(max-width:1024px){.news-layout{grid-template-columns:1fr;}}

.faq-section{background:linear-gradient(180deg,var(--bg-main),#091f33);}
.accordion{border:none;background:transparent;max-width:860px;margin:0 auto;}
.accordion-item{background:var(--glass-bg);border:1px solid var(--glass-border);border-radius:var(--radius-sm) !important;margin-bottom:16px;overflow:hidden;transition:var(--transition-base);}
.accordion-item:hover{border-color:rgba(0,229,160,0.25);}
.accordion-title{
  background:transparent !important;border:none !important;
  color:var(--text-main) !important;
  font-size:16px;font-weight:600;
  padding:22px 28px !important;
  display:flex;align-items:center;gap:12px;
  position:relative;
  line-height:1.4;
}
.accordion-title::before{
  content:'\f059';
  font-family:'Font Awesome 6 Free';
  font-weight:900;
  color:var(--warn);
  font-size:18px;
  flex-shrink:0;
}
.accordion-title:hover{background:rgba(255,255,255,0.03) !important;color:var(--text-main) !important;}
.accordion-title::after{
  content:'\f078' !important;
  font-family:'Font Awesome 6 Free' !important;
  font-weight:900 !important;
  font-size:14px !important;
  color:var(--accent) !important;
  position:absolute;right:24px;top:50%;transform:translateY(-50%);
}
.accordion-item.is-active .accordion-title::after{transform:translateY(-50%) rotate(180deg);}
.accordion-content{
  background:transparent !important;
  border:none !important;
  color:var(--text-secondary) !important;
  font-size:15px;line-height:1.75;
  padding:0 28px 24px 58px !important;
}

.final-cta{
  position:relative;
  background:url('/assets/images/backpic/back-3.webp') center center/cover no-repeat;
  border-radius:24px;
  overflow:hidden;
  padding:64px 56px;
  text-align:center;
}
.final-cta::before{
  content:'';position:absolute;inset:0;
  background:linear-gradient(135deg,rgba(7,26,43,0.95),rgba(11,42,69,0.85));
}
.final-cta-content{position:relative;z-index:2;}
.final-cta h2{font-size:32px;font-weight:800;margin-bottom:16px;}
.final-cta p{font-size:16px;color:var(--text-secondary);max-width:560px;margin:0 auto 32px;line-height:1.7;}
@media(max-width:640px){.final-cta{padding:40px 24px;}.final-cta h2{font-size:22px;}}

.site-footer{
  background:#040f1a;
  border-top:1px solid rgba(255,255,255,0.06);
  padding:56px 0 24px;
  margin-top:72px;
}
.footer-grid{display:grid;grid-template-columns:1.4fr 0.8fr 0.8fr 1fr;gap:40px;margin-bottom:40px;}
.footer-brand .footer-logo{display:flex;align-items:center;gap:10px;margin-bottom:16px;}
.footer-brand .footer-logo .logo-mark{width:32px;height:32px;font-size:15px;}
.footer-brand .footer-logo span{font-size:18px;font-weight:700;}
.footer-brand p{font-size:14px;color:var(--text-muted);line-height:1.7;max-width:320px;}
.footer-col h4{font-size:15px;font-weight:600;color:var(--text-main);margin-bottom:16px;}
.footer-col ul li{margin-bottom:10px;}
.footer-col ul li a{color:var(--text-muted);font-size:14px;transition:var(--transition-base);}
.footer-col ul li a:hover{color:var(--accent);padding-left:4px;}
.footer-contact li{display:flex;align-items:center;gap:10px;color:var(--text-muted);font-size:14px;margin-bottom:12px;}
.footer-contact li i{color:var(--accent);width:18px;text-align:center;}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,0.04);
  padding-top:20px;
  display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;align-items:center;
  font-size:13px;color:var(--text-muted);
}
.footer-bottom a{color:var(--text-muted);}
.footer-bottom a:hover{color:var(--accent);}
@media(max-width:1024px){.footer-grid{grid-template-columns:1fr 1fr;}}
@media(max-width:640px){.footer-grid{grid-template-columns:1fr;gap:32px;}}

.reveal{
  border-radius:20px;
  background:linear-gradient(160deg,#0b2a45,#071a2b);
  border:1px solid rgba(255,255,255,0.12);
  box-shadow:0 30px 80px rgba(0,0,0,0.6);
  padding:36px;
  max-width:520px;
}
.reveal h3{font-size:24px;font-weight:700;margin-bottom:8px;color:var(--text-main);}
.reveal .form-desc{font-size:14px;color:var(--text-secondary);margin-bottom:24px;}
.form-group{margin-bottom:18px;}
.form-group label{font-size:13px;color:var(--text-secondary);margin-bottom:6px;display:block;font-weight:600;}
.form-control{
  background:rgba(255,255,255,0.06);
  border:1px solid rgba(255,255,255,0.16);
  border-radius:10px;
  color:var(--text-main);
  padding:12px 16px;
  width:100%;
  transition:var(--transition-base);
  font-size:14px;
  box-shadow:none;
}
.form-control:focus{
  background:rgba(255,255,255,0.08);
  border-color:var(--accent);
  box-shadow:0 0 0 3px rgba(0,229,160,0.15);
  outline:none;
  color:var(--text-main);
}
.form-control::placeholder{color:var(--text-muted);}
select.form-control{appearance:none;-webkit-appearance:none;background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='%23a9bccd'%3E%3Cpath d='M7 10l5 5 5-5H7z'/%3E%3C/svg%3E");background-repeat:no-repeat;background-position:right 14px center;background-size:16px;}
textarea.form-control{resize:vertical;min-height:90px;}
.form-submit{width:100%;margin-top:10px;}
.privacy-note{font-size:12px;color:var(--text-muted);text-align:center;margin-top:16px;line-height:1.6;}
.close-button{color:var(--text-secondary);font-size:28px;transition:color 0.3s;}
.close-button:hover{color:var(--accent);}

.text-accent{color:var(--accent);}
.text-warn{color:var(--warn);}
.mt-16{margin-top:16px;}.mt-24{margin-top:24px;}.mt-32{margin-top:32px;}.mb-16{margin-bottom:16px;}.mb-24{margin-bottom:24px;}.mb-32{margin-bottom:32px;}
.text-center{text-align:center;}
.pb-0{padding-bottom:0;}

/* roulang page: category1 */
:root {
  --bg-deep: #071A2B;
  --bg-primary: #0B2A45;
  --bg-secondary: #123A5C;
  --accent: #00E5A0;
  --accent-dark: #062018;
  --amber: #FFB800;
  --text-main: #E6EDF5;
  --text-secondary: #A9BCCD;
  --text-muted: #70879B;
  --glass-bg: rgba(255,255,255,0.05);
  --glass-border: rgba(255,255,255,0.12);
  --radius-lg: 18px;
  --radius-md: 12px;
  --radius-sm: 10px;
  --shadow-card: 0 8px 30px rgba(0,0,0,0.35);
  --shadow-hover: 0 12px 40px rgba(0,0,0,0.5);
  --space-section: 72px;
  --font-family: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", "Helvetica Neue", Arial, sans-serif;
}

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

html {
  scroll-behavior: smooth;
  font-size: 16px;
}

body {
  font-family: var(--font-family);
  background-color: var(--bg-deep);
  color: var(--text-main);
  line-height: 1.75;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  background-image:
    linear-gradient(rgba(255,255,255,0.025) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.025) 1px, transparent 1px);
  background-size: 60px 60px;
  pointer-events: none;
  z-index: 0;
}

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

a {
  color: inherit;
  text-decoration: none;
  transition: color 0.3s ease, opacity 0.3s ease, border-color 0.3s ease;
}

a:hover, a:focus {
  color: var(--accent);
}

ul, ol {
  list-style: none;
}

button, input, select, textarea {
  font-family: inherit;
  font-size: inherit;
  color: inherit;
}

button:focus, input:focus, select:focus, textarea:focus {
  outline: 2px solid rgba(0,229,160,0.55);
  outline-offset: 2px;
}

.container {
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 28px;
  position: relative;
  z-index: 1;
}

/* ========== 按钮 ========== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 28px;
  border-radius: 999px;
  font-weight: 600;
  font-size: 15px;
  line-height: 1.2;
  border: 1px solid transparent;
  cursor: pointer;
  transition: all 0.3s ease;
  white-space: nowrap;
  min-height: 44px;
}

.btn-primary {
  background: var(--accent);
  color: var(--accent-dark);
  box-shadow: 0 0 24px rgba(0,229,160,0.35);
}

.btn-primary:hover, .btn-primary:focus {
  background: #0ff5b0;
  color: var(--accent-dark);
  box-shadow: 0 0 32px rgba(0,229,160,0.55);
  transform: translateY(-1px);
}

.btn-primary:active {
  transform: translateY(1px);
  box-shadow: 0 0 18px rgba(0,229,160,0.3);
}

.btn-secondary {
  background: transparent;
  border: 1px solid rgba(255,255,255,0.35);
  color: #FFFFFF;
}

.btn-secondary:hover, .btn-secondary:focus {
  border-color: var(--accent);
  color: var(--accent);
  background: rgba(0,229,160,0.06);
}

.btn-light {
  background: rgba(255,255,255,0.08);
  border: 1px solid var(--glass-border);
  color: var(--text-main);
}

.btn-light:hover, .btn-light:focus {
  border-color: var(--accent);
  background: rgba(0,229,160,0.1);
  color: var(--accent);
}

.btn-sm {
  padding: 8px 18px;
  font-size: 14px;
  min-height: 40px;
}

/* ========== 导航 ========== */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(7,26,43,0.85);
  backdrop-filter: blur(18px) saturate(150%);
  -webkit-backdrop-filter: blur(18px) saturate(150%);
  border-bottom: 1px solid rgba(255,255,255,0.08);
  transition: box-shadow 0.3s ease;
}

.site-header.scrolled {
  box-shadow: 0 8px 30px rgba(0,0,0,0.35);
}

.header-top {
  height: 64px;
}

.header-top-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
  gap: 20px;
}

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

.logo-mark {
  width: 38px;
  height: 38px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, var(--accent), #00b8ff);
  border-radius: 10px;
  color: #062018;
  font-size: 18px;
  box-shadow: 0 0 16px rgba(0,229,160,0.35);
}

.logo-text {
  font-size: 21px;
  font-weight: 800;
  letter-spacing: 1px;
  color: var(--text-main);
  white-space: nowrap;
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 14px;
  flex-shrink: 0;
}

.header-search {
  display: flex;
  align-items: center;
  background: rgba(255,255,255,0.06);
  border: 1px solid rgba(255,255,255,0.14);
  border-radius: 999px;
  overflow: hidden;
  height: 38px;
  transition: all 0.3s ease;
}

.header-search:focus-within {
  border-color: var(--accent);
  box-shadow: 0 0 12px rgba(0,229,160,0.2);
}

.header-search input {
  background: transparent;
  border: none;
  outline: none;
  color: var(--text-main);
  font-size: 13px;
  padding: 0 14px;
  width: 180px;
  height: 100%;
}

.header-search input::placeholder {
  color: var(--text-muted);
}

.header-search button {
  background: transparent;
  border: none;
  color: var(--text-secondary);
  padding: 0 14px;
  cursor: pointer;
  height: 100%;
  display: flex;
  align-items: center;
}

.header-search button:hover {
  color: var(--accent);
}

.header-nav {
  height: 48px;
  border-top: 1px solid rgba(255,255,255,0.05);
}

.nav-tabs-scroll {
  height: 100%;
  overflow-x: auto;
  scrollbar-width: none;
}

.nav-tabs-scroll::-webkit-scrollbar {
  display: none;
}

.nav-tabs {
  display: flex;
  align-items: center;
  gap: 6px;
  height: 48px;
  white-space: nowrap;
}

.nav-tab {
  display: inline-flex;
  align-items: center;
  padding: 7px 22px;
  border-radius: 999px;
  font-size: 14px;
  font-weight: 500;
  color: var(--text-secondary);
  background: rgba(255,255,255,0.04);
  border: 1px solid transparent;
  transition: all 0.3s ease;
}

.nav-tab:hover, .nav-tab:focus {
  color: var(--accent);
  background: rgba(0,229,160,0.08);
  border-color: rgba(0,229,160,0.25);
}

.nav-tab.active {
  background: var(--accent);
  color: var(--accent-dark);
  font-weight: 700;
  box-shadow: 0 0 16px rgba(0,229,160,0.3);
}

/* ========== Hero ========== */
.page-hero {
  position: relative;
  padding: 96px 0 72px;
  background:
    linear-gradient(180deg, rgba(7,26,43,0.86), rgba(7,26,43,0.94)),
    url('/assets/images/backpic/back-1.png') center center / cover no-repeat;
  border-bottom: 1px solid rgba(255,255,255,0.06);
  overflow: hidden;
}

.page-hero::before,
.page-hero::after {
  content: "";
  position: absolute;
  width: 480px;
  height: 480px;
  border-radius: 50%;
  filter: blur(100px);
  opacity: 0.3;
  pointer-events: none;
}

.page-hero::before {
  background: #00e5a0;
  top: -160px;
  left: -100px;
}

.page-hero::after {
  background: #00b8ff;
  bottom: -180px;
  right: -80px;
}

.hero-inner {
  text-align: center;
  max-width: 900px;
  margin: 0 auto;
  position: relative;
  z-index: 2;
}

.breadcrumb-bar {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-size: 13px;
  color: var(--text-muted);
  background: rgba(255,255,255,0.04);
  border: 1px solid rgba(255,255,255,0.1);
  border-radius: 999px;
  padding: 6px 18px;
  margin-bottom: 28px;
}

.breadcrumb-bar a {
  color: var(--text-secondary);
}

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

.breadcrumb-bar .sep {
  color: var(--text-muted);
  opacity: 0.5;
}

.breadcrumb-bar .current {
  color: var(--accent);
}

.hero-title {
  font-size: 44px;
  font-weight: 800;
  line-height: 1.25;
  color: #FFFFFF;
  letter-spacing: 1px;
  margin-bottom: 18px;
}

.hero-title .accent-text {
  color: var(--accent);
  text-shadow: 0 0 30px rgba(0,229,160,0.3);
}

.hero-subtitle {
  font-size: 17px;
  line-height: 1.8;
  color: var(--text-secondary);
  max-width: 720px;
  margin: 0 auto 30px;
}

.hero-badges {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 10px;
  margin-bottom: 40px;
}

.hero-data {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 0;
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-lg);
  backdrop-filter: blur(18px) saturate(140%);
  -webkit-backdrop-filter: blur(18px) saturate(140%);
  box-shadow: var(--shadow-card);
  overflow: hidden;
  margin-top: 40px;
}

.data-item {
  padding: 28px 16px;
  text-align: center;
  border-right: 1px solid rgba(255,255,255,0.06);
}

.data-item:last-child {
  border-right: none;
}

.data-num {
  display: block;
  font-size: 34px;
  font-weight: 800;
  color: var(--accent);
  text-shadow: 0 0 20px rgba(0,229,160,0.3);
  line-height: 1.2;
  font-variant-numeric: tabular-nums;
}

.data-num .unit {
  font-size: 20px;
  font-weight: 600;
  margin-left: 2px;
}

.data-label {
  font-size: 13px;
  color: var(--text-muted);
  margin-top: 6px;
  display: block;
}

/* ========== Section ========== */
.section {
  padding: var(--space-section) 0;
  position: relative;
}

.section-alt {
  background: rgba(255,255,255,0.02);
  border-top: 1px solid rgba(255,255,255,0.04);
  border-bottom: 1px solid rgba(255,255,255,0.04);
}

.section-head {
  text-align: center;
  max-width: 720px;
  margin: 0 auto 48px;
}

.section-tag {
  display: inline-block;
  font-size: 12px;
  font-weight: 600;
  color: var(--accent);
  background: rgba(0,229,160,0.1);
  border: 1px solid rgba(0,229,160,0.25);
  border-radius: 999px;
  padding: 4px 16px;
  letter-spacing: 1px;
  margin-bottom: 14px;
  text-transform: uppercase;
}

.section-title {
  font-size: 30px;
  font-weight: 800;
  color: #FFFFFF;
  line-height: 1.35;
  margin-bottom: 12px;
}

.section-subtitle {
  font-size: 15px;
  color: var(--text-secondary);
  line-height: 1.8;
}

/* ========== 服务能力图文 ========== */
.showcase-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  align-items: center;
  gap: 60px;
}

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

.showcase-media img {
  width: 100%;
  height: 420px;
  object-fit: cover;
  transition: transform 0.5s ease;
}

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

.showcase-media::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, transparent 55%, rgba(7,26,43,0.65));
  pointer-events: none;
}

.showcase-flag {
  position: absolute;
  left: 20px;
  bottom: 18px;
  z-index: 2;
  background: var(--accent);
  color: var(--accent-dark);
  font-size: 13px;
  font-weight: 700;
  padding: 6px 16px;
  border-radius: 999px;
  box-shadow: 0 0 18px rgba(0,229,160,0.3);
}

.showcase-content .section-tag {
  margin-bottom: 10px;
}

.showcase-content h3 {
  font-size: 26px;
  font-weight: 800;
  color: #FFFFFF;
  line-height: 1.4;
  margin-bottom: 16px;
}

.showcase-content p {
  color: var(--text-secondary);
  font-size: 15px;
  margin-bottom: 20px;
}

.feature-list {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
  margin-bottom: 28px;
}

.feature-item {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 14px;
  color: var(--text-main);
  background: rgba(255,255,255,0.04);
  border: 1px solid rgba(255,255,255,0.08);
  padding: 10px 14px;
  border-radius: var(--radius-md);
  transition: all 0.3s ease;
}

.feature-item:hover {
  border-color: rgba(0,229,160,0.3);
  background: rgba(0,229,160,0.05);
}

.feature-item i {
  color: var(--accent);
  font-size: 14px;
  flex-shrink: 0;
}

/* ========== 全宽流程区 ========== */
.process-section {
  position: relative;
  padding: var(--space-section) 0;
  background:
    linear-gradient(135deg, rgba(11,42,69,0.88), rgba(7,26,43,0.92)),
    url('/assets/images/backpic/back-2.webp') center center / cover no-repeat;
  border-top: 1px solid rgba(255,255,255,0.05);
  border-bottom: 1px solid rgba(255,255,255,0.05);
}

.process-section .section-title {
  text-align: center;
}

.process-steps {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 0;
  margin-top: 16px;
  position: relative;
}

.process-steps::before {
  content: "";
  position: absolute;
  top: 34px;
  left: 8%;
  right: 8%;
  height: 2px;
  background: linear-gradient(90deg, rgba(0,229,160,0.6), rgba(255,184,0,0.6));
  opacity: 0.4;
}

.process-step {
  text-align: center;
  padding: 0 14px;
  position: relative;
  z-index: 1;
}

.step-num {
  width: 64px;
  height: 64px;
  margin: 0 auto 16px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--bg-deep);
  border: 2px solid var(--accent);
  border-radius: 50%;
  font-size: 20px;
  font-weight: 800;
  color: var(--accent);
  box-shadow: 0 0 20px rgba(0,229,160,0.2);
  font-variant-numeric: tabular-nums;
}

.step-title {
  font-size: 16px;
  font-weight: 700;
  color: #FFFFFF;
  margin-bottom: 6px;
}

.step-text {
  font-size: 13px;
  color: var(--text-muted);
  line-height: 1.6;
}

/* ========== 核心服务卡片 ========== */
.core-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.core-card {
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-lg);
  padding: 32px 26px;
  backdrop-filter: blur(18px) saturate(140%);
  -webkit-backdrop-filter: blur(18px) saturate(140%);
  box-shadow: var(--shadow-card);
  transition: all 0.35s ease;
  position: relative;
  overflow: hidden;
}

.core-card::after {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 3px;
  background: linear-gradient(90deg, var(--accent), transparent);
  opacity: 0;
  transition: opacity 0.3s ease;
}

.core-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-hover);
  border-color: rgba(0,229,160,0.35);
}

.core-card:hover::after {
  opacity: 1;
}

.core-icon {
  width: 52px;
  height: 52px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, rgba(0,229,160,0.2), rgba(0,184,255,0.15));
  border-radius: 14px;
  color: var(--accent);
  font-size: 22px;
  margin-bottom: 20px;
  border: 1px solid rgba(0,229,160,0.2);
}

.core-card:nth-child(4n) .core-icon,
.core-card:nth-child(4n-1) .core-icon {
  color: var(--amber);
  border-color: rgba(255,184,0,0.25);
  background: linear-gradient(135deg, rgba(255,184,0,0.18), rgba(0,229,160,0.08));
}

.core-card:nth-child(4n)::after,
.core-card:nth-child(4n-1)::after {
  background: linear-gradient(90deg, var(--amber), transparent);
}

.core-title {
  font-size: 18px;
  font-weight: 700;
  color: #FFFFFF;
  margin-bottom: 10px;
}

.core-text {
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.75;
  margin-bottom: 16px;
}

.core-link {
  font-size: 14px;
  font-weight: 600;
  color: var(--accent);
  display: inline-flex;
  align-items: center;
  gap: 6px;
  transition: gap 0.3s ease;
}

.core-link:hover {
  gap: 10px;
  color: var(--accent);
}

.core-card:nth-child(4n) .core-link,
.core-card:nth-child(4n-1) .core-link {
  color: var(--amber);
}

/* ========== 适用场景 ========== */
.scenario-scroll {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}

.scenario-card {
  border-radius: var(--radius-lg);
  overflow: hidden;
  position: relative;
  height: 300px;
  box-shadow: var(--shadow-card);
  transition: transform 0.35s ease, box-shadow 0.35s ease;
}

.scenario-card:hover {
  transform: translateY(-5px) scale(1.01);
  box-shadow: var(--shadow-hover);
}

.scenario-card img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.5s ease;
}

.scenario-card:hover img {
  transform: scale(1.06);
}

.scenario-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(7,26,43,0.1) 40%, rgba(7,26,43,0.9) 100%);
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  padding: 24px;
  z-index: 2;
}

.scenario-name {
  font-size: 19px;
  font-weight: 700;
  color: #FFFFFF;
  margin-bottom: 6px;
}

.scenario-desc {
  font-size: 13px;
  color: var(--text-secondary);
  line-height: 1.7;
  opacity: 0.9;
}

.scenario-tag {
  position: absolute;
  top: 16px;
  right: 16px;
  background: rgba(7,26,43,0.7);
  border: 1px solid rgba(0,229,160,0.3);
  color: var(--accent);
  font-size: 11px;
  padding: 4px 12px;
  border-radius: 999px;
  backdrop-filter: blur(8px);
  z-index: 3;
}

/* ========== 封面图卡区 ========== */
.gallery-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.cover-card {
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);
  box-shadow: var(--shadow-card);
  transition: all 0.35s ease;
}

.cover-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-hover);
  border-color: rgba(0,229,160,0.35);
}

.cover-img-wrap {
  height: 180px;
  overflow: hidden;
  position: relative;
}

.cover-img-wrap img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.5s ease;
}

.cover-card:hover .cover-img-wrap img {
  transform: scale(1.05);
}

.cover-img-wrap::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, transparent, rgba(7,26,43,0.3));
}

.cover-body {
  padding: 20px 22px 24px;
}

.cover-body h3 {
  font-size: 17px;
  font-weight: 700;
  color: #FFFFFF;
  margin-bottom: 8px;
}

.cover-body p {
  font-size: 13px;
  color: var(--text-secondary);
  line-height: 1.7;
}

/* ========== FAQ ========== */
.faq-wrap {
  max-width: 820px;
  margin: 0 auto;
}

.accordion-item {
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-md);
  margin-bottom: 14px;
  overflow: hidden;
  backdrop-filter: blur(12px);
  transition: border-color 0.3s ease;
}

.accordion-item:hover,
.accordion-item.is-active {
  border-color: rgba(0,229,160,0.35);
}

.accordion-title {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 18px 22px;
  font-size: 15px;
  font-weight: 600;
  color: var(--text-main);
  cursor: pointer;
  user-select: none;
  min-height: 54px;
}

.accordion-title::after {
  content: "\f067";
  font-family: "Font Awesome 6 Free";
  font-weight: 900;
  font-size: 13px;
  color: var(--amber);
  margin-left: auto;
  transition: transform 0.3s ease;
  flex-shrink: 0;
}

.accordion-item.is-active .accordion-title::after {
  content: "\f068";
  transform: rotate(180deg);
}

.accordion-content {
  padding: 0 22px 20px;
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.8;
}

/* ========== CTA ========== */
.cta-section {
  padding: 70px 0;
  position: relative;
  overflow: hidden;
}

.cta-card {
  position: relative;
  background:
    linear-gradient(120deg, rgba(11,42,69,0.92), rgba(7,26,43,0.88)),
    url('/assets/images/backpic/back-3.webp') center center / cover;
  border: 1px solid rgba(0,229,160,0.2);
  border-radius: 22px;
  padding: 72px 48px;
  text-align: center;
  box-shadow: 0 0 60px rgba(0,229,160,0.08);
  overflow: hidden;
}

.cta-card::before {
  content: "";
  position: absolute;
  width: 300px;
  height: 300px;
  background: rgba(0,229,160,0.15);
  filter: blur(80px);
  border-radius: 50%;
  top: -80px;
  right: -50px;
}

.cta-card::after {
  content: "";
  position: absolute;
  width: 240px;
  height: 240px;
  background: rgba(255,184,0,0.1);
  filter: blur(60px);
  border-radius: 50%;
  bottom: -60px;
  left: -40px;
}

.cta-card > * {
  position: relative;
  z-index: 2;
}

.cta-title {
  font-size: 30px;
  font-weight: 800;
  color: #FFFFFF;
  margin-bottom: 14px;
}

.cta-text {
  font-size: 15px;
  color: var(--text-secondary);
  max-width: 640px;
  margin: 0 auto 32px;
  line-height: 1.8;
}

.cta-actions {
  display: flex;
  justify-content: center;
  gap: 16px;
  flex-wrap: wrap;
}

/* ========== 表单弹层 ========== */
.reveal {
  background: rgba(11,42,69,0.96);
  border: 1px solid rgba(255,255,255,0.14);
  border-radius: 20px;
  box-shadow: 0 30px 80px rgba(0,0,0,0.6);
  padding: 40px 36px 32px;
  max-width: 520px;
  backdrop-filter: blur(24px);
  -webkit-backdrop-filter: blur(24px);
  position: relative;
}

.reveal .close-button {
  position: absolute;
  right: 14px;
  top: 12px;
  color: var(--text-muted);
  font-size: 28px;
  line-height: 1;
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  background: transparent;
  border: none;
  cursor: pointer;
  transition: all 0.3s ease;
}

.reveal .close-button:hover {
  color: var(--accent);
  background: rgba(255,255,255,0.06);
}

.reveal h3 {
  font-size: 24px;
  font-weight: 800;
  color: #FFFFFF;
  margin-bottom: 8px;
}

.reveal .form-desc {
  font-size: 13px;
  color: var(--text-muted);
  margin-bottom: 24px;
}

.contact-form label {
  font-size: 13px;
  font-weight: 600;
  color: var(--text-secondary);
  display: block;
  margin-bottom: 6px;
}

.contact-form input,
.contact-form select,
.contact-form textarea {
  width: 100%;
  background: rgba(255,255,255,0.06);
  border: 1px solid rgba(255,255,255,0.16);
  border-radius: var(--radius-sm);
  padding: 11px 14px;
  font-size: 14px;
  color: var(--text-main);
  margin-bottom: 18px;
  transition: all 0.3s ease;
}

.contact-form input:focus,
.contact-form select:focus,
.contact-form textarea:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(0,229,160,0.15);
  outline: none;
}

.contact-form textarea {
  resize: vertical;
  min-height: 90px;
}

.contact-form 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='%23A9BCCD' d='M6 8L0 0h12z'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 14px center;
}

.legal-note {
  font-size: 12px;
  color: var(--text-muted);
  text-align: center;
  margin-top: 12px;
}

/* ========== 页脚 ========== */
.site-footer {
  background: #051523;
  border-top: 1px solid rgba(255,255,255,0.07);
  padding: 64px 0 0;
  position: relative;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1.4fr;
  gap: 44px;
  padding-bottom: 48px;
}

.footer-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 19px;
  font-weight: 800;
  color: #FFFFFF;
  margin-bottom: 16px;
}

.footer-brand p {
  font-size: 14px;
  color: var(--text-muted);
  line-height: 1.8;
  max-width: 320px;
}

.footer-col h4 {
  font-size: 15px;
  font-weight: 700;
  color: #FFFFFF;
  margin-bottom: 18px;
}

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

.footer-col ul li a {
  font-size: 14px;
  color: var(--text-muted);
  transition: all 0.3s ease;
}

.footer-col ul li a:hover {
  color: var(--accent);
  padding-left: 4px;
}

.footer-contact li {
  color: var(--text-muted);
  font-size: 14px;
  display: flex;
  align-items: flex-start;
  gap: 10px;
}

.footer-contact i {
  color: var(--accent);
  margin-top: 4px;
  font-size: 13px;
  width: 16px;
}

.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.06);
  padding: 22px 0;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 18px;
  flex-wrap: wrap;
  font-size: 13px;
  color: var(--text-muted);
}

.footer-bottom a {
  color: var(--text-muted);
}

.footer-bottom a:hover {
  color: var(--accent);
}

/* ========== 响应式 ========== */
@media (max-width: 1023px) {
  :root {
    --space-section: 56px;
  }

  .heap-header {
    height: auto;
  }

  .showcase-grid {
    grid-template-columns: 1fr;
    gap: 36px;
  }

  .showcase-media img {
    height: 320px;
  }

  .process-steps {
    grid-template-columns: repeat(3, 1fr);
    gap: 24px 12px;
  }

  .process-steps::before {
    display: none;
  }

  .core-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .scenario-scroll {
    grid-template-columns: repeat(2, 1fr);
  }

  .gallery-grid {
    grid-template-columns: repeat(2, 1fr);
  }

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

  .hero-title {
    font-size: 36px;
  }

  .section-title {
    font-size: 26px;
  }

  .cta-card {
    padding: 52px 28px;
  }
}

@media (max-width: 767px) {
  .header-top {
    height: auto;
    padding: 12px 0;
  }

  .header-top-inner {
    flex-wrap: wrap;
    height: auto;
    gap: 10px;
  }

  .header-actions {
    width: 100%;
    justify-content: space-between;
  }

  .header-search {
    flex: 1;
  }

  .header-search input {
    width: 100%;
  }

  .header-nav {
    height: auto;
    padding: 4px 0;
  }

  .nav-tabs {
    height: auto;
    padding: 4px 0;
  }

  .page-hero {
    padding: 60px 0 50px;
  }

  .hero-title {
    font-size: 28px;
  }

  .hero-subtitle {
    font-size: 15px;
  }

  .hero-data {
    grid-template-columns: repeat(2, 1fr);
  }

  .data-item:nth-child(2) {
    border-right: none;
  }

  .data-item:nth-child(-n+2) {
    border-bottom: 1px solid rgba(255,255,255,0.06);
  }

  .data-num {
    font-size: 28px;
  }

  .section-title {
    font-size: 24px;
  }

  .feature-list {
    grid-template-columns: 1fr;
  }

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

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

  .scenario-scroll {
    grid-template-columns: 1fr;
  }

  .scenario-card {
    height: 240px;
  }

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

  .cta-actions {
    flex-direction: column;
    align-items: center;
  }

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

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

  .footer-bottom {
    flex-direction: column;
    gap: 8px;
    text-align: center;
  }

  .reveal {
    padding: 28px 20px 22px;
  }
}

@media (max-width: 520px) {
  .container {
    padding: 0 18px;
  }

  .hero-data {
    grid-template-columns: 1fr;
  }

  .data-item {
    border-right: none;
    border-bottom: 1px solid rgba(255,255,255,0.06);
    padding: 18px 12px;
  }

  .data-item:last-child {
    border-bottom: none;
  }
}

/* roulang page: article */
:root {
            --bg-primary: #071A2B;
            --bg-secondary: #0B2A45;
            --bg-tertiary: #123A5C;
            --accent-green: #00E5A0;
            --accent-amber: #FFB800;
            --text-primary: #E6EDF5;
            --text-secondary: #A9BCCD;
            --text-muted: #70879B;
            --glass-bg: rgba(255,255,255,0.05);
            --glass-bg-hover: rgba(255,255,255,0.08);
            --glass-border: rgba(255,255,255,0.12);
            --radius-lg: 18px;
            --radius-md: 12px;
            --radius-sm: 10px;
            --radius-pill: 999px;
            --shadow-card: 0 8px 30px rgba(0,0,0,0.35);
            --shadow-hover: 0 12px 40px rgba(0,0,0,0.5);
            --shadow-glow: 0 0 24px rgba(0,229,160,0.35);
            --spacing-section: 72px;
            --spacing-mobile: 48px;
            --font-family: 'PingFang SC', 'Microsoft YaHei', 'Noto Sans SC', -apple-system, sans-serif;
            --max-width: 1280px;
            --content-width: 800px;
        }

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

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: var(--font-family);
            font-size: 16px;
            line-height: 1.75;
            color: var(--text-primary);
            background-color: var(--bg-primary);
            background-image:
                linear-gradient(rgba(255,255,255,0.02) 1px, transparent 1px),
                linear-gradient(90deg, rgba(255,255,255,0.02) 1px, transparent 1px);
            background-size: 44px 44px;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

        body::before {
            content: '';
            position: fixed;
            top: 0;
            left: 50%;
            transform: translateX(-50%);
            width: 1200px;
            height: 400px;
            background: radial-gradient(ellipse at center, rgba(0,229,160,0.06) 0%, transparent 70%);
            pointer-events: none;
            z-index: 0;
        }

        a {
            color: inherit;
            text-decoration: none;
            transition: color 0.25s ease, border-color 0.25s ease, background-color 0.25s ease;
        }

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

        ul, ol {
            list-style: none;
        }

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

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

        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            padding: 12px 28px;
            border-radius: var(--radius-pill);
            font-size: 15px;
            font-weight: 600;
            line-height: 1.4;
            cursor: pointer;
            transition: all 0.3s ease;
            border: 1px solid transparent;
            white-space: nowrap;
            min-height: 44px;
        }

        .btn-primary {
            background: var(--accent-green);
            color: #062018;
            box-shadow: var(--shadow-glow);
        }

        .btn-primary:hover {
            background: #1aeab0;
            box-shadow: 0 0 32px rgba(0,229,160,0.5);
            transform: translateY(-2px);
            color: #062018;
        }

        .btn-primary:active {
            transform: translateY(1px);
            box-shadow: 0 0 20px rgba(0,229,160,0.3);
        }

        .btn-outline {
            background: transparent;
            border-color: rgba(255,255,255,0.35);
            color: #fff;
        }

        .btn-outline:hover {
            border-color: var(--accent-green);
            color: var(--accent-green);
            transform: translateY(-2px);
            background: rgba(0,229,160,0.06);
        }

        .btn-sm {
            padding: 8px 20px;
            font-size: 14px;
            min-height: 38px;
        }

        .btn:focus-visible,
        .nav-tab:focus-visible,
        a:focus-visible {
            outline: 2px solid var(--accent-green);
            outline-offset: 3px;
        }

        .site-header {
            position: sticky;
            top: 0;
            z-index: 1000;
            background: rgba(7, 26, 43, 0.92);
            backdrop-filter: blur(20px) saturate(140%);
            -webkit-backdrop-filter: blur(20px) saturate(140%);
            border-bottom: 1px solid rgba(255,255,255,0.06);
            box-shadow: 0 4px 30px rgba(0,0,0,0.3);
            transition: box-shadow 0.3s ease;
        }

        .site-header.scrolled {
            box-shadow: 0 8px 40px rgba(0,0,0,0.45);
        }

        .header-top {
            height: 64px;
            border-bottom: 1px solid rgba(255,255,255,0.05);
        }

        .header-top-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 100%;
            gap: 20px;
        }

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

        .logo-mark {
            width: 38px;
            height: 38px;
            border-radius: 10px;
            background: linear-gradient(135deg, var(--accent-green) 0%, #0fbf8a 100%);
            display: inline-flex;
            align-items: center;
            justify-content: center;
            color: #062018;
            font-size: 18px;
            box-shadow: 0 0 14px rgba(0,229,160,0.4);
        }

        .logo-text {
            font-size: 22px;
            font-weight: 800;
            letter-spacing: 1px;
            color: #fff;
            background: linear-gradient(90deg, #fff 0%, var(--accent-green) 100%);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            white-space: nowrap;
        }

        .header-actions {
            display: flex;
            align-items: center;
            gap: 16px;
        }

        .header-search {
            display: flex;
            align-items: center;
            background: rgba(255,255,255,0.06);
            border: 1px solid rgba(255,255,255,0.12);
            border-radius: var(--radius-pill);
            padding: 0 6px 0 16px;
            height: 38px;
            width: 260px;
            transition: border-color 0.3s ease, box-shadow 0.3s ease;
        }

        .header-search:focus-within {
            border-color: var(--accent-green);
            box-shadow: 0 0 12px rgba(0,229,160,0.15);
        }

        .header-search input {
            flex: 1;
            background: transparent;
            border: none;
            font-size: 13px;
            color: var(--text-primary);
            padding: 0;
        }

        .header-search input::placeholder {
            color: var(--text-muted);
        }

        .header-search button {
            width: 32px;
            height: 32px;
            border-radius: 50%;
            background: rgba(255,255,255,0.08);
            color: var(--text-secondary);
            cursor: pointer;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            transition: background 0.3s ease, color 0.3s ease;
        }

        .header-search button:hover {
            background: var(--accent-green);
            color: #062018;
        }

        .header-nav {
            height: 48px;
            display: flex;
            align-items: center;
        }

        .nav-tabs-scroll {
            overflow-x: auto;
            scrollbar-width: none;
            -ms-overflow-style: none;
            width: 100%;
        }

        .nav-tabs-scroll::-webkit-scrollbar {
            display: none;
        }

        .nav-tabs {
            display: flex;
            align-items: center;
            gap: 8px;
            padding: 6px 0;
            min-width: max-content;
        }

        .nav-tab {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 8px 20px;
            border-radius: var(--radius-pill);
            font-size: 14px;
            font-weight: 500;
            color: var(--text-secondary);
            background: rgba(255,255,255,0.04);
            border: 1px solid transparent;
            transition: all 0.3s ease;
            cursor: pointer;
            white-space: nowrap;
        }

        .nav-tab:hover {
            color: var(--text-primary);
            background: rgba(255,255,255,0.08);
            border-color: rgba(255,255,255,0.1);
        }

        .nav-tab.active {
            background: var(--accent-green);
            color: #062018;
            font-weight: 600;
            box-shadow: 0 0 16px rgba(0,229,160,0.25);
        }

        .breadcrumb {
            padding: 18px 0;
            background: rgba(11, 42, 69, 0.6);
            border-bottom: 1px solid rgba(255,255,255,0.05);
            font-size: 13px;
            color: var(--text-muted);
        }

        .breadcrumb .container {
            display: flex;
            align-items: center;
            flex-wrap: wrap;
            gap: 8px;
        }

        .breadcrumb a {
            color: var(--text-secondary);
            transition: color 0.3s ease;
        }

        .breadcrumb a:hover {
            color: var(--accent-green);
        }

        .breadcrumb-sep {
            font-size: 11px;
            color: var(--text-muted);
            display: inline-flex;
        }

        .breadcrumb-current {
            color: var(--text-primary);
            font-weight: 500;
            max-width: 280px;
            overflow: hidden;
            text-overflow: ellipsis;
            white-space: nowrap;
        }

        .article-page {
            padding: 50px 0 var(--spacing-section);
            position: relative;
            z-index: 1;
        }

        .article-header {
            max-width: var(--content-width);
            margin: 0 auto 40px;
            text-align: center;
        }

        .article-cat-tag {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 6px 16px;
            border-radius: var(--radius-pill);
            background: rgba(255, 184, 0, 0.12);
            border: 1px solid rgba(255, 184, 0, 0.3);
            color: var(--accent-amber);
            font-size: 13px;
            font-weight: 600;
            margin-bottom: 20px;
        }

        .article-title {
            font-size: 38px;
            font-weight: 800;
            line-height: 1.35;
            color: var(--text-primary);
            margin-bottom: 20px;
            letter-spacing: 0.5px;
        }

        .article-meta {
            display: flex;
            align-items: center;
            justify-content: center;
            flex-wrap: wrap;
            gap: 20px;
            color: var(--text-muted);
            font-size: 14px;
        }

        .meta-item {
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }

        .meta-item i {
            color: var(--accent-green);
            font-size: 13px;
        }

        .article-body {
            max-width: var(--content-width);
            margin: 0 auto;
            padding: 40px 40px 50px;
            background: var(--glass-bg);
            border: 1px solid var(--glass-border);
            border-radius: var(--radius-lg);
            backdrop-filter: blur(18px) saturate(140%);
            -webkit-backdrop-filter: blur(18px) saturate(140%);
            box-shadow: var(--shadow-card);
        }

        .article-content {
            font-size: 16px;
            line-height: 1.85;
            color: #C9D7E3;
        }

        .article-content h2 {
            font-size: 26px;
            font-weight: 700;
            color: var(--text-primary);
            margin-top: 40px;
            margin-bottom: 18px;
            padding-bottom: 12px;
            border-bottom: 1px solid rgba(255,255,255,0.08);
            position: relative;
        }

        .article-content h2::after {
            content: '';
            position: absolute;
            left: 0;
            bottom: -1px;
            width: 48px;
            height: 3px;
            background: var(--accent-green);
            border-radius: 4px;
        }

        .article-content h3 {
            font-size: 21px;
            font-weight: 600;
            color: var(--text-primary);
            margin-top: 30px;
            margin-bottom: 14px;
        }

        .article-content p {
            margin-bottom: 18px;
            color: #C9D7E3;
        }

        .article-content a {
            color: var(--accent-green);
            border-bottom: 1px solid rgba(0,229,160,0.3);
            padding-bottom: 1px;
        }

        .article-content a:hover {
            color: #4af0be;
            border-bottom-color: #4af0be;
        }

        .article-content ul,
        .article-content ol {
            margin: 18px 0;
            padding-left: 24px;
        }

        .article-content ul li {
            list-style: disc;
            margin-bottom: 8px;
            color: #C9D7E3;
        }

        .article-content ol li {
            list-style: decimal;
            margin-bottom: 8px;
            color: #C9D7E3;
        }

        .article-content blockquote {
            border-left: 4px solid var(--accent-green);
            background: rgba(0,229,160,0.06);
            padding: 16px 24px;
            margin: 24px 0;
            border-radius: 0 var(--radius-md) var(--radius-md) 0;
            color: var(--text-secondary);
            font-style: italic;
        }

        .article-content img {
            border-radius: var(--radius-md);
            margin: 28px 0;
            box-shadow: var(--shadow-card);
        }

        .article-content table {
            width: 100%;
            border-collapse: collapse;
            margin: 24px 0;
            border-radius: var(--radius-md);
            overflow: hidden;
        }

        .article-content table th,
        .article-content table td {
            padding: 14px 16px;
            border: 1px solid rgba(255,255,255,0.08);
            text-align: left;
            font-size: 14px;
        }

        .article-content table th {
            background: rgba(11, 42, 69, 0.8);
            color: var(--text-primary);
            font-weight: 600;
        }

        .article-content table td {
            background: rgba(255,255,255,0.02);
            color: var(--text-secondary);
        }

        .article-content table tr:hover td {
            background: rgba(0,229,160,0.03);
        }

        .related-section {
            max-width: var(--content-width);
            margin: 60px auto 0;
        }

        .related-section-title {
            font-size: 24px;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 28px;
            display: flex;
            align-items: center;
            gap: 12px;
        }

        .related-section-title::before {
            content: '';
            width: 4px;
            height: 24px;
            background: var(--accent-green);
            border-radius: 4px;
        }

        .related-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }

        .related-card {
            background: var(--glass-bg);
            border: 1px solid var(--glass-border);
            border-radius: var(--radius-lg);
            overflow: hidden;
            transition: all 0.4s ease;
            display: flex;
            flex-direction: column;
        }

        .related-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-hover);
            border-color: rgba(0,229,160,0.3);
        }

        .related-card-img {
            width: 100%;
            aspect-ratio: 16 / 10;
            object-fit: cover;
            display: block;
        }

        .related-card-content {
            padding: 20px 22px 24px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }

        .related-card-title {
            font-size: 17px;
            font-weight: 600;
            color: var(--text-primary);
            margin-bottom: 10px;
            line-height: 1.4;
        }

        .related-card-title a:hover {
            color: var(--accent-green);
        }

        .related-card-text {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.65;
            flex: 1;
            margin-bottom: 16px;
        }

        .related-card-link {
            font-size: 13px;
            color: var(--accent-green);
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-weight: 500;
        }

        .related-card-link i {
            font-size: 11px;
            transition: transform 0.3s ease;
        }

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

        .article-footer-nav {
            max-width: var(--content-width);
            margin: 44px auto 0;
            display: flex;
            justify-content: center;
            gap: 16px;
        }

        .article-empty {
            max-width: var(--content-width);
            margin: 80px auto;
            padding: 60px 40px;
            text-align: center;
            background: var(--glass-bg);
            border: 1px solid var(--glass-border);
            border-radius: var(--radius-lg);
            backdrop-filter: blur(18px);
            -webkit-backdrop-filter: blur(18px);
        }

        .article-empty i {
            font-size: 48px;
            color: var(--accent-amber);
            margin-bottom: 20px;
            display: block;
        }

        .article-empty h2 {
            font-size: 26px;
            color: var(--text-primary);
            margin-bottom: 12px;
        }

        .article-empty p {
            color: var(--text-secondary);
            margin-bottom: 24px;
        }

        .site-footer {
            background: #05131F;
            border-top: 1px solid rgba(255,255,255,0.06);
            padding: 64px 0 0;
            position: relative;
            z-index: 1;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 1.4fr 1fr 1fr 1.2fr;
            gap: 40px;
            padding-bottom: 40px;
        }

        .footer-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            margin-bottom: 18px;
        }

        .footer-logo .logo-mark {
            width: 32px;
            height: 32px;
            font-size: 15px;
        }

        .footer-logo span:not(.logo-mark) {
            font-size: 20px;
            font-weight: 800;
            color: #fff;
        }

        .footer-brand p {
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.75;
            max-width: 280px;
        }

        .footer-col h4 {
            font-size: 15px;
            font-weight: 600;
            color: var(--text-primary);
            margin-bottom: 18px;
            position: relative;
            padding-bottom: 10px;
        }

        .footer-col h4::after {
            content: '';
            position: absolute;
            left: 0;
            bottom: 0;
            width: 28px;
            height: 2px;
            background: var(--accent-green);
            border-radius: 2px;
        }

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

        .footer-col ul li a {
            font-size: 14px;
            color: var(--text-secondary);
            transition: color 0.3s ease, padding-left 0.3s ease;
        }

        .footer-col ul li a:hover {
            color: var(--accent-green);
            padding-left: 4px;
        }

        .footer-contact li {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 14px;
            color: var(--text-secondary);
            padding: 6px 0;
        }

        .footer-contact li i {
            color: var(--accent-green);
            font-size: 14px;
            width: 18px;
            text-align: center;
        }

        .footer-bottom {
            border-top: 1px solid rgba(255,255,255,0.06);
            padding: 20px 0;
            display: flex;
            align-items: center;
            justify-content: center;
            flex-wrap: wrap;
            gap: 16px;
            font-size: 13px;
            color: var(--text-muted);
        }

        .footer-bottom a {
            color: var(--text-muted);
            transition: color 0.3s ease;
        }

        .footer-bottom a:hover {
            color: var(--accent-green);
        }

        @media (max-width: 1024px) {
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 32px;
            }

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

            .related-grid {
                grid-template-columns: repeat(2, 1fr);
            }

            .header-search {
                width: 200px;
            }
        }

        @media (max-width: 768px) {
            .header-top-inner {
                gap: 12px;
            }

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

            .logo-mark {
                width: 32px;
                height: 32px;
                font-size: 15px;
            }

            .header-search {
                display: none;
            }

            .header-actions .btn-sm {
                padding: 8px 14px;
                font-size: 13px;
            }

            .article-page {
                padding: 32px 0 var(--spacing-mobile);
            }

            .article-title {
                font-size: 28px;
            }

            .article-body {
                padding: 28px 22px 36px;
            }

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

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

            .container {
                padding-left: 18px;
                padding-right: 18px;
            }
        }

        @media (max-width: 520px) {
            .article-title {
                font-size: 24px;
            }

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

            .related-section-title {
                font-size: 20px;
            }

            .btn {
                padding: 10px 20px;
                font-size: 14px;
            }

            .breadcrumb-current {
                max-width: 180px;
            }
        }

/* roulang page: category2 */
:root {
    --bg-dark: #071A2B;
    --bg-panel: #0B2A45;
    --bg-gradient: linear-gradient(135deg, #0B2A45 0%, #123A5C 100%);
    --primary: #00E5A0;
    --accent: #FFB800;
    --text-main: #E6EDF5;
    --text-sub: #A9BCCD;
    --text-dim: #70879B;
    --border-glass: rgba(255,255,255,0.12);
    --bg-glass: rgba(255,255,255,0.05);
    --radius-card: 18px;
    --radius-sm: 12px;
    --radius-pill: 999px;
    --shadow-card: 0 8px 30px rgba(0,0,0,0.35);
    --shadow-hover: 0 12px 40px rgba(0,0,0,0.5);
    --spacing-section: 72px;
    --font-main: 'PingFang SC','Microsoft YaHei','Noto Sans SC',system-ui,sans-serif;
}
*,*::before,*::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
    font-family: var(--font-main);
    background: var(--bg-dark);
    color: var(--text-main);
    line-height: 1.75;
    font-size: 16px;
    overflow-x: hidden;
}
img { max-width: 100%; display: block; }
a { text-decoration: none; color: inherit; transition: color 0.3s ease, border-color 0.3s ease, background 0.3s ease, box-shadow 0.3s ease, transform 0.3s ease; }
a:focus-visible, button:focus-visible, input:focus-visible, select:focus-visible, textarea:focus-visible { outline: 2px solid var(--primary); outline-offset: 2px; }
ul, ol { list-style: none; }
button, input, select, textarea { font-family: inherit; }

.container { max-width: 1280px; margin: 0 auto; padding: 0 24px; }

/* ===== 通用按钮 ===== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    border-radius: var(--radius-pill);
    font-weight: 600;
    cursor: pointer;
    border: none;
    transition: all 0.3s ease;
    line-height: 1.4;
    min-height: 44px;
    font-size: 15px;
    padding: 14px 32px;
}
.btn-primary { background: var(--primary); color: #062018; box-shadow: 0 0 24px rgba(0,229,160,0.35); }
.btn-primary:hover { background: #0ef5b0; box-shadow: 0 0 32px rgba(0,229,160,0.5); transform: translateY(-1px); color: #062018; }
.btn-primary:active { transform: translateY(1px); box-shadow: 0 0 16px rgba(0,229,160,0.3); }
.btn-outline { background: transparent; border: 1px solid rgba(255,255,255,0.35); color: #fff; }
.btn-outline:hover { border-color: var(--primary); color: var(--primary); background: rgba(0,229,160,0.06); }
.btn-outline:active { transform: translateY(1px); }
.btn-sm { padding: 10px 20px; font-size: 14px; min-height: 40px; }

/* ===== 头部导航 ===== */
.site-header {
    position: sticky;
    top: 0;
    z-index: 100;
    background: rgba(7,26,43,0.92);
    backdrop-filter: blur(18px) saturate(140%);
    -webkit-backdrop-filter: blur(18px) saturate(140%);
    box-shadow: 0 4px 30px rgba(0,0,0,0.3);
}
.header-top { border-bottom: 1px solid rgba(255,255,255,0.06); }
.header-top-inner { display: flex; align-items: center; justify-content: space-between; height: 64px; gap: 16px; }
.brand-logo { display: flex; align-items: center; gap: 10px; flex-shrink: 0; }
.logo-mark { width: 36px; height: 36px; border-radius: 50%; background: var(--primary); display: flex; align-items: center; justify-content: center; color: #062018; font-size: 15px; box-shadow: 0 0 18px rgba(0,229,160,0.4); }
.logo-text { font-size: 20px; font-weight: 800; letter-spacing: 1px; color: var(--text-main); }
.header-actions { display: flex; align-items: center; gap: 16px; }
.header-search { display: flex; align-items: center; background: rgba(255,255,255,0.06); border-radius: var(--radius-pill); padding: 4px 4px 4px 16px; border: 1px solid rgba(255,255,255,0.1); transition: border-color 0.3s ease; }
.header-search:focus-within { border-color: rgba(0,229,160,0.5); }
.header-search input { background: transparent; border: none; outline: none; color: var(--text-main); width: 180px; font-size: 14px; }
.header-search input::placeholder { color: var(--text-dim); }
.header-search button { background: transparent; border: none; color: var(--text-sub); cursor: pointer; padding: 8px 12px; border-radius: 50%; font-size: 14px; }
.header-search button:hover { color: var(--primary); }
.header-nav { background: rgba(7,26,43,0.65); }
.nav-tabs-scroll { overflow-x: auto; scrollbar-width: none; -ms-overflow-style: none; }
.nav-tabs-scroll::-webkit-scrollbar { display: none; }
.nav-tabs { display: flex; gap: 8px; padding: 8px 0; min-width: max-content; }
.nav-tab { display: inline-flex; align-items: center; padding: 9px 22px; border-radius: var(--radius-pill); font-size: 14px; font-weight: 500; color: var(--text-sub); background: rgba(255,255,255,0.04); border: 1px solid transparent; white-space: nowrap; transition: all 0.3s ease; min-height: 40px; }
.nav-tab:hover { color: var(--primary); border-color: rgba(0,229,160,0.4); background: rgba(0,229,160,0.08); }
.nav-tab.active { background: var(--primary); color: #062018; font-weight: 700; box-shadow: 0 0 20px rgba(0,229,160,0.3); }

/* ===== Hero区 ===== */
.category-hero { position: relative; padding: 100px 0 90px; background: url('/assets/images/backpic/back-2.webp') center/cover no-repeat; overflow: hidden; }
.category-hero::before { content: ''; position: absolute; inset: 0; background: linear-gradient(135deg, rgba(7,26,43,0.94) 0%, rgba(11,42,69,0.78) 55%, rgba(7,26,43,0.62) 100%); }
.category-hero::after { content: ''; position: absolute; top: -100px; right: -100px; width: 360px; height: 360px; background: radial-gradient(circle, rgba(0,229,160,0.18), transparent 70%); border-radius: 50%; pointer-events: none; }
.category-hero-content { position: relative; z-index: 2; max-width: 840px; }
.hero-tag { display: inline-flex; align-items: center; gap: 6px; background: rgba(0,229,160,0.12); border: 1px solid rgba(0,229,160,0.3); color: var(--primary); padding: 6px 16px; border-radius: var(--radius-pill); font-size: 13px; font-weight: 600; margin-bottom: 20px; }
.category-hero h1 { font-size: 44px; font-weight: 800; line-height: 1.2; margin-bottom: 20px; color: #fff; letter-spacing: -0.5px; }
.category-hero h1 .highlight { color: var(--primary); }
.hero-sub { font-size: 18px; color: var(--text-sub); max-width: 640px; margin-bottom: 34px; line-height: 1.75; }
.hero-cta { display: flex; gap: 16px; flex-wrap: wrap; }
.hero-breadcrumb { margin-top: 28px; font-size: 13px; color: var(--text-dim); display: flex; gap: 6px; align-items: center; flex-wrap: wrap; }
.hero-breadcrumb a:hover { color: var(--primary); }
.hero-breadcrumb .sep { color: var(--text-dim); opacity: 0.5; }

/* ===== 数据条 ===== */
.data-strip { background: var(--bg-panel); border-top: 1px solid rgba(255,255,255,0.08); border-bottom: 1px solid rgba(255,255,255,0.08); padding: 44px 0; position: relative; }
.data-strip::before { content: ''; position: absolute; top: 0; left: 50%; transform: translateX(-50%); width: 120px; height: 2px; background: linear-gradient(90deg, transparent, var(--primary), transparent); }
.data-strip-inner { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; text-align: center; }
.data-strip-item { padding: 16px 12px; }
.data-strip-item .data-num { font-size: 42px; font-weight: 800; color: var(--primary); text-shadow: 0 0 24px rgba(0,229,160,0.4); font-variant-numeric: tabular-nums; line-height: 1.2; }
.data-strip-item .data-suffix { font-size: 20px; font-weight: 700; color: #fff; margin-left: 2px; }
.data-strip-item .data-label { font-size: 14px; color: var(--text-sub); margin-top: 8px; letter-spacing: 1px; }

/* ===== 板块通用 ===== */
.section { padding: var(--spacing-section) 0; }
.section-alt { background: rgba(255,255,255,0.02); border-top: 1px solid rgba(255,255,255,0.04); border-bottom: 1px solid rgba(255,255,255,0.04); }
.section-head { margin-bottom: 48px; max-width: 720px; }
.section-head.center { margin-left: auto; margin-right: auto; text-align: center; }
.section-tag { display: inline-block; color: var(--primary); font-size: 13px; font-weight: 700; letter-spacing: 2px; margin-bottom: 10px; }
.section-head h2 { font-size: 32px; font-weight: 800; margin: 0 0 14px; line-height: 1.3; color: #fff; }
.section-head p { color: var(--text-sub); font-size: 16px; line-height: 1.75; margin: 0; }

/* ===== 能力卡 ===== */
.capability-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 24px; }
.cap-card {
    background: var(--bg-glass);
    border: 1px solid var(--border-glass);
    border-radius: var(--radius-card);
    padding: 32px;
    backdrop-filter: blur(18px) saturate(140%);
    -webkit-backdrop-filter: blur(18px) saturate(140%);
    box-shadow: var(--shadow-card);
    transition: all 0.35s ease;
    position: relative;
    overflow: hidden;
}
.cap-card::after { content: ''; position: absolute; bottom: 0; left: 0; width: 100%; height: 2px; background: linear-gradient(90deg, var(--primary), transparent); opacity: 0; transition: opacity 0.35s ease; }
.cap-card:hover { transform: translateY(-3px); box-shadow: var(--shadow-hover); border-color: rgba(0,229,160,0.35); }
.cap-card:hover::after { opacity: 1; }
.cap-icon { width: 52px; height: 52px; border-radius: 14px; background: rgba(0,229,160,0.12); color: var(--primary); display: flex; align-items: center; justify-content: center; font-size: 22px; margin-bottom: 20px; transition: transform 0.35s ease; }
.cap-card:hover .cap-icon { transform: scale(1.06); }
.cap-card h3 { font-size: 19px; font-weight: 700; margin-bottom: 12px; color: #fff; }
.cap-card p { color: var(--text-sub); font-size: 15px; line-height: 1.7; }
.cap-link { display: inline-flex; align-items: center; gap: 8px; color: var(--primary); font-size: 14px; font-weight: 600; margin-top: 16px; }
.cap-link i { transition: transform 0.3s ease; }
.cap-link:hover i { transform: translateX(4px); }
.cap-card.accent-card { border-color: rgba(255,184,0,0.28); }
.cap-card.accent-card::after { background: linear-gradient(90deg, var(--accent), transparent); }
.cap-card.accent-card .cap-icon { background: rgba(255,184,0,0.12); color: var(--accent); }
.cap-card.accent-card:hover { border-color: rgba(255,184,0,0.6); }

/* ===== 图文板块 ===== */
.split-section { display: grid; grid-template-columns: 1fr 1fr; gap: 64px; align-items: center; }
.split-image { border-radius: var(--radius-card); overflow: hidden; box-shadow: var(--shadow-card); position: relative; }
.split-image img { width: 100%; height: 100%; min-height: 400px; object-fit: cover; transition: transform 0.5s ease; }
.split-image:hover img { transform: scale(1.03); }
.split-image::after { content: ''; position: absolute; inset: 0; background: linear-gradient(135deg, rgba(7,26,43,0.2), transparent 60%); border-radius: var(--radius-card); pointer-events: none; }
.split-content h2 { font-size: 32px; font-weight: 800; margin-bottom: 18px; line-height: 1.3; color: #fff; }
.split-content p { color: var(--text-sub); font-size: 16px; line-height: 1.8; margin-bottom: 16px; }
.split-content ul li { position: relative; padding-left: 28px; color: var(--text-main); margin-bottom: 12px; font-size: 15px; }
.split-content ul li::before { content: '✓'; position: absolute; left: 0; color: var(--primary); font-weight: 700; font-size: 16px; }
.split-content .btn { margin-top: 12px; }

/* ===== 场景区 ===== */
.scenario-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.scenario-card { background: var(--bg-glass); border: 1px solid var(--border-glass); border-radius: var(--radius-card); padding: 28px; transition: all 0.35s ease; box-shadow: var(--shadow-card); }
.scenario-card:hover { border-color: rgba(255,184,0,0.55); box-shadow: var(--shadow-hover); transform: translateY(-3px); }
.scenario-icon { width: 44px; height: 44px; border-radius: 12px; background: rgba(255,184,0,0.12); color: var(--accent); display: flex; align-items: center; justify-content: center; font-size: 18px; margin-bottom: 16px; }
.scenario-card h3 { font-size: 18px; font-weight: 700; margin-bottom: 10px; color: #fff; }
.scenario-card p { color: var(--text-sub); font-size: 14px; line-height: 1.75; }

/* ===== 流程区 ===== */
.process-section { background: var(--bg-panel); }
.process-steps { display: grid; grid-template-columns: repeat(4, 1fr); gap: 32px; }
.process-step { text-align: center; position: relative; padding: 0 8px; }
.process-step::before { content: ''; position: absolute; top: 28px; left: calc(50% + 44px); width: calc(100% - 88px); height: 2px; background: linear-gradient(90deg, rgba(0,229,160,0.3), rgba(255,184,0,0.2)); }
.process-step:last-child::before { display: none; }
.step-num { width: 56px; height: 56px; border-radius: 50%; background: rgba(0,229,160,0.1); border: 2px solid var(--primary); color: var(--primary); font-size: 20px; font-weight: 800; display: flex; align-items: center; justify-content: center; margin: 0 auto 20px; box-shadow: 0 0 20px rgba(0,229,160,0.2); position: relative; z-index: 1; background-color: #0B2A45; }
.process-step h3 { font-size: 18px; font-weight: 700; margin-bottom: 10px; color: #fff; }
.process-step p { color: var(--text-sub); font-size: 14px; line-height: 1.7; max-width: 220px; margin: 0 auto; }

/* ===== 大图覆盖模块 ===== */
.cover-showcase { position: relative; padding: 0; }
.cover-showcase-wrap { display: grid; grid-template-columns: 1.1fr 0.9fr; min-height: 440px; border-radius: var(--radius-card); overflow: hidden; box-shadow: var(--shadow-card); }
.cover-showcase-img { position: relative; min-height: 440px; }
.cover-showcase-img img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; }
.cover-showcase-img::after { content: ''; position: absolute; inset: 0; background: linear-gradient(90deg, transparent 50%, rgba(7,26,43,0.7) 100%); }
.cover-showcase-body { background: var(--bg-panel); padding: 48px; display: flex; flex-direction: column; justify-content: center; }
.cover-showcase-body h2 { font-size: 28px; font-weight: 800; margin-bottom: 16px; color: #fff; }
.cover-showcase-body p { color: var(--text-sub); font-size: 15px; line-height: 1.8; margin-bottom: 16px; }
.cover-showcase-body ul { margin-bottom: 20px; }
.cover-showcase-body ul li { color: var(--text-main); font-size: 14px; padding-left: 22px; position: relative; margin-bottom: 8px; }
.cover-showcase-body ul li::before { content: '◆'; position: absolute; left: 0; color: var(--accent); font-size: 10px; top: 4px; }

/* ===== FAQ ===== */
.faq-wrap { max-width: 820px; margin: 0 auto; }
.accordion { background: transparent; margin: 0; }
.accordion-item { background: rgba(255,255,255,0.03); border: 1px solid rgba(255,255,255,0.1); border-radius: var(--radius-sm); margin-bottom: 16px; overflow: hidden; transition: border-color 0.3s ease, box-shadow 0.3s ease; list-style: none !important; }
.accordion-item.is-active { border-color: rgba(0,229,160,0.4); box-shadow: 0 0 24px rgba(0,229,160,0.08); }
.accordion-title { padding: 20px 24px; font-size: 16px; font-weight: 600; color: var(--text-main) !important; background: transparent !important; border-bottom: 1px solid transparent; display: flex; justify-content: space-between; align-items: center; transition: background 0.3s ease; }
.accordion-title:hover, .accordion-title:focus { background: rgba(255,255,255,0.04) !important; color: var(--primary) !important; }
.accordion-title::before { content: none !important; }
.accordion-title::after { content: '+'; font-size: 26px; font-weight: 400; color: var(--accent); line-height: 1; transition: transform 0.35s ease; margin-left: 16px; flex-shrink: 0; }
.accordion-item.is-active > .accordion-title { border-bottom-color: rgba(255,255,255,0.08); }
.accordion-item.is-active > .accordion-title::after { transform: rotate(45deg); color: var(--primary); }
.accordion-content { padding: 0 24px 22px !important; color: var(--text-sub); font-size: 15px; line-height: 1.8; background: transparent !important; }

/* ===== CTA区 ===== */
.cta-section { padding: 80px 0; }
.cta-card {
    background: linear-gradient(135deg, rgba(0,229,160,0.1), rgba(255,184,0,0.06)), var(--bg-panel);
    border: 1px solid rgba(0,229,160,0.3);
    border-radius: 24px;
    padding: 64px 48px;
    text-align: center;
    position: relative;
    overflow: hidden;
    box-shadow: var(--shadow-card);
}
.cta-card::before { content: ''; position: absolute; top: -80px; right: -80px; width: 240px; height: 240px; background: radial-gradient(circle, rgba(0,229,160,0.2), transparent 70%); border-radius: 50%; }
.cta-card::after { content: ''; position: absolute; bottom: -60px; left: -60px; width: 180px; height: 180px; background: radial-gradient(circle, rgba(255,184,0,0.12), transparent 70%); border-radius: 50%; }
.cta-card h2 { font-size: 32px; font-weight: 800; margin-bottom: 14px; color: #fff; position: relative; z-index: 1; }
.cta-card p { color: var(--text-sub); font-size: 16px; max-width: 540px; margin: 0 auto 36px; position: relative; z-index: 1; }
.cta-card .btn { position: relative; z-index: 1; }

/* ===== 页脚 ===== */
.site-footer { background: #040F1A; padding: 64px 0 0; border-top: 1px solid rgba(255,255,255,0.08); }
.footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr 1fr; gap: 48px; padding-bottom: 48px; }
.footer-logo { display: flex; align-items: center; gap: 10px; font-size: 20px; font-weight: 800; color: #fff; margin-bottom: 16px; }
.footer-logo .logo-mark { width: 32px; height: 32px; font-size: 13px; }
.footer-brand p { color: var(--text-sub); font-size: 14px; line-height: 1.75; max-width: 340px; }
.footer-col h4 { font-size: 15px; font-weight: 700; color: #fff; margin-bottom: 18px; }
.footer-col ul li { margin-bottom: 10px; }
.footer-col ul li a { color: var(--text-sub); font-size: 14px; }
.footer-col ul li a:hover { color: var(--primary); }
.footer-contact li { color: var(--text-sub); font-size: 14px; display: flex; align-items: center; gap: 10px; }
.footer-contact li i { color: var(--primary); width: 16px; text-align: center; }
.footer-bottom { display: flex; gap: 24px; align-items: center; padding: 20px 0; border-top: 1px solid rgba(255,255,255,0.06); color: var(--text-dim); font-size: 13px; flex-wrap: wrap; justify-content: flex-start; }
.footer-bottom a { color: var(--text-dim); }
.footer-bottom a:hover { color: var(--primary); }

/* ===== Reveal弹层 ===== */
.reveal { background: var(--bg-panel); border-radius: 20px; border: 1px solid rgba(255,255,255,0.12); padding: 36px; box-shadow: 0 24px 80px rgba(0,0,0,0.7); max-width: 520px; margin: 0 auto; }
.reveal h3 { font-size: 24px; font-weight: 800; margin-bottom: 8px; color: #fff; }
.reveal .form-desc { color: var(--text-sub); font-size: 14px; margin-bottom: 24px; }
.reveal label { color: var(--text-sub); font-size: 13px; font-weight: 600; margin-bottom: 6px; display: block; }
.reveal input, .reveal select, .reveal textarea { background: rgba(255,255,255,0.06); border: 1px solid rgba(255,255,255,0.16); border-radius: 10px; padding: 12px 16px; color: var(--text-main); width: 100%; margin-bottom: 18px; font-size: 14px; transition: border-color 0.3s ease, box-shadow 0.3s ease; }
.reveal input::placeholder, .reveal textarea::placeholder { color: var(--text-dim); }
.reveal input:focus, .reveal select:focus, .reveal textarea:focus { border-color: var(--primary); box-shadow: 0 0 14px rgba(0,229,160,0.15); outline: none; }
.reveal 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'%3E%3Cpath fill='%23A9BCCD' d='M1 1l5 5 5-5z'/%3E%3C/svg%3E"); background-repeat: no-repeat; background-position: right 16px center; }
.reveal .privacy-note { font-size: 12px; color: var(--text-dim); margin-top: 12px; line-height: 1.6; }
.close-button { color: var(--text-sub) !important; opacity: 0.8; transition: opacity 0.3s ease, color 0.3s ease; }
.close-button:hover { color: var(--primary) !important; opacity: 1; }
.reveal-overlay { background: rgba(4,15,26,0.8); backdrop-filter: blur(6px); -webkit-backdrop-filter: blur(6px); }

/* ===== 滚动显现动画 ===== */
.reveal-anim { opacity: 0; transform: translateY(24px); transition: opacity 0.6s ease, transform 0.6s ease; }
.reveal-anim.visible { opacity: 1; transform: translateY(0); }

/* ===== 响应式 ===== */
@media (max-width: 1023px) {
    :root { --spacing-section: 56px; }
    .category-hero h1 { font-size: 36px; }
    .section-head h2 { font-size: 27px; }
    .split-section { grid-template-columns: 1fr; gap: 32px; }
    .split-image img { min-height: 320px; }
    .data-strip-inner { grid-template-columns: repeat(2, 1fr); gap: 16px; }
    .process-steps { grid-template-columns: repeat(2, 1fr); gap: 24px; }
    .process-step::before { display: none; }
    .footer-grid { grid-template-columns: 1fr 1fr; gap: 32px; }
    .cover-showcase-wrap { grid-template-columns: 1fr; }
    .cover-showcase-img { min-height: 320px; }
    .cover-showcase-img img { position: relative; height: 320px; }
    .cover-showcase-img::after { background: linear-gradient(to top, rgba(7,26,43,0.7), transparent 60%); }
    .scenario-grid { grid-template-columns: repeat(2, 1fr); }
    .category-hero { padding: 80px 0 64px; }
}

@media (max-width: 639px) {
    :root { --spacing-section: 48px; }
    .header-top-inner { height: auto; flex-direction: column; gap: 10px; padding: 12px 0; }
    .header-actions { width: 100%; justify-content: space-between; gap: 12px; }
    .header-search { flex: 1; }
    .header-search input { width: 100%; flex: 1; }
    .header-actions .btn-sm { padding: 8px 16px; font-size: 13px; }
    .category-hero { padding: 64px 0 48px; }
    .category-hero h1 { font-size: 28px; line-height: 1.3; }
    .hero-sub { font-size: 16px; }
    .hero-cta .btn { width: 100%; }
    .data-strip-inner { grid-template-columns: 1fr 1fr; gap: 12px; }
    .data-strip-item .data-num { font-size: 32px; }
    .capability-grid { grid-template-columns: 1fr; }
    .scenario-grid { grid-template-columns: 1fr; }
    .process-steps { grid-template-columns: 1fr; }
    .process-step { padding: 0; }
    .footer-grid { grid-template-columns: 1fr; gap: 24px; }
    .footer-bottom { flex-direction: column; align-items: flex-start; gap: 8px; }
    .cta-card { padding: 40px 24px; }
    .cta-card h2 { font-size: 26px; }
    .section-head h2 { font-size: 24px; }
    .split-content h2 { font-size: 24px; }
    .cover-showcase-body { padding: 32px 24px; }
    .reveal { padding: 24px 20px; }
    .accordion-title { font-size: 15px; padding: 18px 18px; }
    .accordion-content { padding: 0 18px 18px !important; }
}

@media (max-width: 480px) {
    .data-strip-inner { grid-template-columns: 1fr; }
}