/* roulang page: index */
:root {
  --primary: #00B894;
  --accent: #F0A500;
  --dark: #0B1F1F;
  --dark-secondary: #143232;
  --light: #F7F5F0;
  --white: #FFFFFF;
  --text: #20302E;
  --text-secondary: #5E6E6C;
  --text-muted: #9AA7A4;
  --success: #00C48C;
  --danger: #E56B5A;
  --border: #E3E0D8;
  --radius-card: 12px;
  --radius-btn: 8px;
  --radius-badge: 16px;
  --radius-input: 8px;
  --radius-img: 16px;
  --shadow-card: 0 4px 20px rgba(11,31,31,0.06);
  --shadow-btn: 0 4px 12px rgba(0,184,148,0.28);
  --shadow-dark: 0 2px 12px rgba(0,0,0,0.25);
  --font-stack: "PingFang SC","Microsoft YaHei","Noto Sans SC",sans-serif;
}
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{font-family:var(--font-stack);font-size:16px;font-weight:400;line-height:1.8;color:var(--text);background:var(--white);-webkit-font-smoothing:antialiased}
img{max-width:100%;display:block}
a{color:var(--primary);text-decoration:none;transition:color .2s ease}
a:hover{color:var(--primary)}
ul,ol{list-style:none}
button,input,select,textarea{font-family:inherit;font-size:inherit;border:none;outline:none}
input:focus,select:focus,textarea:focus{outline:2px solid var(--primary);outline-offset:1px}
.container{max-width:1280px;margin:0 auto;padding:0 24px}
@media(min-width:1024px){.container{padding:0 48px}}
.grid-x{display:flex;flex-wrap:wrap}
.cell{flex:0 0 auto}
.large-4{width:33.3333%}
.large-6{width:50%}
.large-8{width:66.6667%}
.large-3{width:25%}
@media(max-width:1023px){
  .large-4,.large-6,.large-8,.large-3{width:100%}
}
.site-header{position:fixed;top:0;left:0;width:100%;height:76px;background:rgba(11,31,31,0.96);backdrop-filter:blur(8px);z-index:1000;transition:all .3s ease;border-bottom:1px solid rgba(255,255,255,0.06)}
.site-header.scrolled{height:64px;box-shadow:0 4px 24px rgba(0,0,0,0.35)}
.nav-inner{display:flex;align-items:center;justify-content:space-between;height:100%}
.brand{display:flex;align-items:center;gap:10px;color:#fff;flex-shrink:0}
.brand-icon{width:36px;height:36px;border-radius:50%;background:linear-gradient(135deg,var(--primary),#007F63);display:flex;align-items:center;justify-content:center;color:#fff;font-size:16px}
.brand-text{display:flex;flex-direction:column;line-height:1.2}
.brand-text strong{font-size:17px;font-weight:700;letter-spacing:0.02em;color:#fff}
.brand-text em{font-style:normal;font-size:12px;color:rgba(255,255,255,0.7)}
.site-nav{display:flex;align-items:center;gap:28px}
.site-nav a{color:rgba(255,255,255,0.85);font-size:15px;font-weight:500;position:relative;padding:6px 2px;transition:color .2s}
.site-nav a::after{content:"";position:absolute;left:50%;bottom:-4px;width:0;height:3px;background:var(--primary);border-radius:3px;transform:translateX(-50%);transition:width .3s}
.site-nav a:hover{color:#fff}
.site-nav a:hover::after{width:100%}
.site-nav a.active{color:#fff}
.site-nav a.active::after{width:100%}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:0.9em 2em;font-size:15px;font-weight:600;border-radius:var(--radius-btn);cursor:pointer;transition:all .25s ease;line-height:1.2;text-align:center}
.btn-primary{background:var(--primary);color:#fff;box-shadow:var(--shadow-btn)}
.btn-primary:hover{background:#00A87F;color:#fff;transform:translateY(-2px);box-shadow:0 6px 20px rgba(0,184,148,0.40)}
.btn-outline{background:transparent;color:#fff;border:1px solid rgba(255,255,255,0.7)}
.btn-outline:hover{background:rgba(255,255,255,0.12);color:#fff;border-color:#fff;transform:translateY(-2px)}
.btn-lg{padding:1em 2.4em;font-size:16px}
.btn-dark{background:var(--dark);color:#fff}
.btn-dark:hover{background:var(--dark-secondary);color:#fff}
.nav-cta{flex-shrink:0;padding:0.7em 1.6em;font-size:14px}
.nav-toggle{display:none;background:transparent;color:#fff;font-size:22px;width:44px;height:44px;border-radius:8px;cursor:pointer;align-items:center;justify-content:center}
.nav-toggle:hover{background:rgba(255,255,255,0.1)}
@media(max-width:900px){
  .nav-toggle{display:flex}
  .site-nav{display:none;position:fixed;top:0;right:0;width:100%;height:100vh;background:var(--dark);flex-direction:column;justify-content:center;gap:12px;padding:60px 40px;z-index:999}
  .site-nav.open{display:flex}
  .site-nav a{font-size:20px;padding:14px 0;border-bottom:1px solid rgba(255,255,255,0.08);color:rgba(255,255,255,0.9)}
  .site-nav a.active{color:var(--primary)}
  .site-nav a.active::after{display:none}
  .nav-cta{display:none}
}
.hero{position:relative;min-height:100vh;display:flex;align-items:center;background:var(--dark);overflow:hidden;padding:120px 0 80px}
.hero-bg{position:absolute;inset:0;background:url('/assets/images/backpic/back-1.webp') center/cover no-repeat;opacity:0.55;z-index:0}
.hero-bg::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(11,31,31,0.88) 0%,rgba(11,31,31,0.78) 60%,rgba(11,31,31,0.92) 100%)}
.hero-inner{position:relative;z-index:2;display:grid;grid-template-columns:1.2fr 1fr;gap:64px;align-items:center;width:100%}
@media(max-width:1023px){.hero-inner{grid-template-columns:1fr;gap:48px}}
.hero-copy h1{font-size:44px;line-height:1.3;font-weight:700;color:#fff;letter-spacing:-0.01em;margin-bottom:20px}
@media(max-width:768px){.hero-copy h1{font-size:30px}}
.hero-sub{font-size:18px;line-height:1.8;color:#DFE8E5;margin-bottom:36px;max-width:540px}
.hero-sub span{color:var(--accent);font-weight:600}
.hero-actions{display:flex;gap:16px;flex-wrap:wrap}
.hero-kpis{display:grid;grid-template-columns:1fr 1fr;gap:16px}
@media(max-width:640px){.hero-kpis{grid-template-columns:1fr}}
.kpi-card{background:rgba(20,50,50,0.75);border:1px solid rgba(255,255,255,0.10);border-radius:var(--radius-card);padding:24px;display:flex;flex-direction:column;gap:4px;backdrop-filter:blur(4px)}
.kpi-num{font-size:36px;font-weight:700;color:var(--accent);font-variant-numeric:tabular-nums;letter-spacing:-0.02em;line-height:1.2}
.kpi-card:nth-child(2n) .kpi-num{color:var(--primary)}
.kpi-label{font-size:13px;color:rgba(255,255,255,0.75)}
.kpi-trend{font-size:13px;font-weight:600;display:inline-flex;align-items:center;gap:4px;margin-top:4px}
.kpi-trend.up{color:var(--success)}
.kpi-trend.down{color:var(--accent)}
.kpi-strip{position:relative;z-index:5;background:var(--light);border-radius:16px;box-shadow:var(--shadow-card);transform:translateY(-40px);padding:28px 32px;display:grid;grid-template-columns:repeat(4,1fr);gap:24px;max-width:1280px;margin:0 auto}
@media(max-width:900px){.kpi-strip{grid-template-columns:repeat(2,1fr);transform:none;margin-top:0;border-radius:0}}
@media(max-width:520px){.kpi-strip{grid-template-columns:1fr}}
.kpi-mini{text-align:center;padding:12px 8px;border-right:1px solid var(--border)}
.kpi-mini:last-child{border-right:none}
.kpi-mini strong{display:block;font-size:24px;font-weight:700;color:var(--dark);font-variant-numeric:tabular-nums}
.kpi-mini span{font-size:13px;color:var(--text-secondary)}
@media(max-width:900px){.kpi-mini{border-right:none}}
.section{padding:96px 0}
@media(max-width:768px){.section{padding:64px 0}}
.section-head{max-width:720px;margin-bottom:48px}
.section-head h2{font-size:32px;font-weight:700;color:var(--dark);line-height:1.3;margin-bottom:12px}
@media(max-width:768px){.section-head h2{font-size:24px}}
.section-head p{font-size:16px;color:var(--text-secondary);line-height:1.8}
.services-section{background:var(--light)}
.service-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
@media(max-width:900px){.service-grid{grid-template-columns:repeat(2,1fr)}}
@media(max-width:600px){.service-grid{grid-template-columns:1fr}}
.service-card{background:var(--white);border-radius:var(--radius-card);padding:32px;border:1px solid var(--border);box-shadow:var(--shadow-card);transition:transform .25s,box-shadow .25s,border-color .25s;display:flex;flex-direction:column;gap:12px;position:relative}
.service-card:hover{transform:translateY(-4px);box-shadow:0 8px 28px rgba(11,31,31,0.10);border-color:var(--primary)}
.service-card .icon{width:52px;height:52px;border-radius:12px;background:rgba(0,184,148,0.12);display:flex;align-items:center;justify-content:center;font-size:22px;color:var(--primary);margin-bottom:4px}
.service-card h3{font-size:20px;font-weight:700;color:var(--dark)}
.service-card p{font-size:15px;color:var(--text-secondary);line-height:1.7;flex-grow:1}
.service-card .more{font-size:14px;font-weight:600;color:var(--primary);display:inline-flex;align-items:center;gap:6px}
.service-card .more i{transition:transform .2s}
.service-card .more:hover i{transform:translateX(4px)}
.service-card.featured{background:var(--primary);border-color:var(--primary);grid-column:span 2;color:#fff}
.service-card.featured h3,.service-card.featured p{color:#fff}
.service-card.featured .icon{background:rgba(255,255,255,0.2);color:#fff}
.service-card.featured .more{color:#fff}
@media(max-width:600px){.service-card.featured{grid-column:span 1}}
.compare-section{background:var(--dark);color:#fff}
.compare-wrap{display:grid;grid-template-columns:1fr 1fr;gap:0;border-radius:16px;overflow:hidden;box-shadow:var(--shadow-dark)}
@media(max-width:768px){.compare-wrap{grid-template-columns:1fr}}
.compare-col{padding:48px 40px}
.compare-col.platform{background:var(--dark-secondary);border-right:1px solid rgba(255,255,255,0.06)}
.compare-col.default{background:rgba(255,255,255,0.05)}
.compare-col h3{font-size:22px;font-weight:700;margin-bottom:28px;display:flex;align-items:center;gap:10px}
.compare-col h3 i{color:var(--primary)}
.compare-col.default h3 i{color:var(--accent)}
.compare-item{margin-bottom:24px}
.compare-item .label{font-size:14px;color:rgba(255,255,255,0.75);margin-bottom:8px;display:flex;justify-content:space-between;align-items:center}
.compare-item .value{font-size:20px;font-weight:700;color:#fff;font-variant-numeric:tabular-nums}
.compare-item .badge{background:var(--accent);color:var(--dark);font-size:12px;font-weight:600;padding:2px 10px;border-radius:16px;margin-left:8px}
.compare-bar{height:8px;border-radius:4px;background:rgba(255,255,255,0.12);overflow:hidden}
.compare-bar span{display:block;height:100%;border-radius:4px}
.compare-bar.platform-bar span{background:var(--primary)}
.compare-bar.default-bar span{background:rgba(255,255,255,0.35)}
.compare-note{margin-top:36px;text-align:center;font-size:14px;color:rgba(255,255,255,0.6)}
.news-section{background:var(--white)}
.news-list{display:grid;grid-template-columns:1fr 1fr;gap:24px}
@media(max-width:768px){.news-list{grid-template-columns:1fr}}
.news-card{display:flex;gap:20px;background:var(--white);border:1px solid var(--border);border-radius:var(--radius-card);padding:16px;transition:box-shadow .25s,transform .25s;align-items:flex-start}
.news-card:hover{box-shadow:var(--shadow-card);transform:translateY(-2px)}
.news-thumb{width:140px;height:96px;flex-shrink:0;border-radius:10px;overflow:hidden;background:var(--light)}
.news-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .3s}
.news-card:hover .news-thumb img{transform:scale(1.05)}
.news-body{flex:1;min-width:0}
.news-body h3{font-size:17px;font-weight:600;line-height:1.4;margin-bottom:6px}
.news-body h3 a{color:var(--text)}
.news-body h3 a:hover{color:var(--primary)}
.news-body p{font-size:14px;color:var(--text-secondary);line-height:1.6;margin-bottom:8px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.news-meta{display:flex;align-items:center;gap:6px;font-size:13px;color:var(--text-muted)}
.news-tag{background:rgba(0,184,148,0.12);color:var(--primary);font-size:12px;font-weight:600;padding:2px 10px;border-radius:16px;margin-right:4px}
.news-empty{text-align:center;padding:60px 20px;border:2px dashed var(--border);border-radius:16px;color:var(--text-muted)}
.news-empty i{font-size:40px;margin-bottom:12px;display:block;color:var(--text-muted)}
.news-empty p{font-size:16px}
.faq-section{background:var(--light)}
.accordion{list-style:none;max-width:860px;margin:0 auto}
.accordion-item{background:var(--white);border-radius:12px;margin-bottom:16px;box-shadow:0 2px 8px rgba(11,31,31,0.03);overflow:hidden}
.accordion-item.is-active{box-shadow:var(--shadow-card)}
.accordion-title{display:flex;justify-content:space-between;align-items:center;padding:20px 24px;font-size:17px;font-weight:600;color:var(--text);cursor:pointer;border-bottom:1px solid transparent}
.accordion-item.is-active .accordion-title{border-bottom-color:var(--border)}
.accordion-title .faq-icon{width:24px;height:24px;border-radius:50%;background:rgba(0,184,148,0.12);color:var(--primary);display:flex;align-items:center;justify-content:center;font-size:14px;transition:transform .3s}
.accordion-item.is-active .accordion-title .faq-icon{transform:rotate(45deg);background:var(--primary);color:#fff}
.accordion-content{padding:0 24px 20px;font-size:15px;color:var(--text-secondary);line-height:1.7}
.cta-section{background:var(--dark);color:#fff}
.cta-wrap{display:grid;grid-template-columns:1fr 1.2fr;gap:48px;align-items:center}
@media(max-width:900px){.cta-wrap{grid-template-columns:1fr}}
.cta-info h2{font-size:32px;font-weight:700;margin-bottom:16px;color:#fff}
.cta-info h2 span{color:var(--primary)}
.cta-info p{font-size:16px;color:rgba(255,255,255,0.75);margin-bottom:32px}
.contact-items{display:flex;flex-direction:column;gap:20px}
.contact-item{display:flex;gap:14px;align-items:flex-start}
.contact-item .icon{width:40px;height:40px;border-radius:8px;background:rgba(0,184,148,0.15);color:var(--primary);display:flex;align-items:center;justify-content:center;font-size:16px;flex-shrink:0}
.contact-item .text strong{display:block;font-size:15px;color:#fff;font-weight:600}
.contact-item .text span{font-size:14px;color:rgba(255,255,255,0.65)}
.form-card{background:var(--white);border-radius:16px;padding:40px;box-shadow:0 8px 40px rgba(0,0,0,0.3)}
.form-card h3{font-size:22px;font-weight:700;color:var(--dark);margin-bottom:24px}
.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:16px}
@media(max-width:600px){.form-grid{grid-template-columns:1fr}}
.form-group{margin-bottom:2px}
.form-group.full{grid-column:span 2}
@media(max-width:600px){.form-group.full{grid-column:span 1}}
.form-group label{font-size:14px;font-weight:600;color:var(--text);margin-bottom:6px;display:block}
.form-group input,.form-group select,.form-group textarea{width:100%;padding:12px 14px;border-radius:var(--radius-input);border:1px solid var(--border);background:#F7F5F0;font-size:15px;color:var(--text);transition:border-color .2s,box-shadow .2s}
.form-group input:focus,.form-group select:focus,.form-group textarea:focus{border-color:var(--primary);box-shadow:0 0 0 3px rgba(0,184,148,0.15);outline:none}
.form-group textarea{resize:vertical;min-height:110px}
.form-submit{margin-top:20px;display:flex;flex-direction:column;gap:10px}
.form-success{display:none;background:rgba(0,196,140,0.12);color:#008B6D;padding:12px 16px;border-radius:8px;font-size:14px;font-weight:600}
.footer{background:var(--dark);color:rgba(255,255,255,0.7);padding:60px 0 0}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:40px;padding-bottom:40px}
@media(max-width:900px){.footer-grid{grid-template-columns:1fr 1fr}}
@media(max-width:560px){.footer-grid{grid-template-columns:1fr}}
.footer-brand .brand{margin-bottom:16px}
.footer-brand p{font-size:14px;line-height:1.7;max-width:280px}
.footer-col h4{font-size:16px;font-weight:700;color:#fff;margin-bottom:16px}
.footer-col a{display:block;color:rgba(255,255,255,0.65);font-size:14px;line-height:1.8;transition:color .2s;padding:2px 0}
.footer-col a:hover{color:var(--primary)}
.footer-contact li{display:flex;gap:10px;align-items:center;font-size:14px;line-height:1.8;margin-bottom:8px}
.footer-contact li i{color:var(--primary);width:18px}
.footer-bottom{border-top:1px solid rgba(255,255,255,0.08);padding:24px 0;text-align:center;font-size:13px;color:rgba(255,255,255,0.5)}
.footer-bottom a{color:rgba(255,255,255,0.5)}
.footer-bottom a:hover{color:var(--primary)}
@keyframes fadeInUp{from{opacity:0;transform:translateY(24px)}to{opacity:1;transform:translateY(0)}}
.hero-copy,.hero-kpis{animation:fadeInUp .7s ease both}
.hero-kpis{animation-delay:.2s}

/* roulang page: article */
:root {
    --emerald: #00B894;
    --amber: #F0A500;
    --deep-dark: #0B1F1F;
    --dark-secondary: #143232;
    --light-bg: #F7F5F0;
    --card-bg: #FFFFFF;
    --text-primary: #20302E;
    --text-secondary: #5E6E6C;
    --text-muted: #9AA7A4;
    --success: #00C48C;
    --warning: #E56B5A;
    --border: #E3E0D8;
    --radius-card: 12px;
    --radius-btn: 8px;
    --radius-badge: 16px;
    --radius-large: 16px;
    --shadow-card: 0 4px 20px rgba(11, 31, 31, 0.06);
    --shadow-dark: 0 2px 12px rgba(0, 0, 0, 0.25);
    --shadow-btn: 0 4px 12px rgba(0, 184, 148, 0.28);
    --font-family: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
    --transition: all 0.3s ease;
}
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { font-family: var(--font-family); font-size: 16px; line-height: 1.7; color: var(--text-primary); background: var(--light-bg); margin: 0; padding: 0; }
img { max-width: 100%; height: auto; display: block; }
a { color: var(--text-primary); text-decoration: none; transition: var(--transition); }
a:hover { color: var(--emerald); }
ul, ol { margin: 0; padding: 0; }
.container { max-width: 1280px; margin: 0 auto; padding-left: 96px; padding-right: 96px; }
.site-header { position: fixed; top: 0; left: 0; right: 0; z-index: 1000; background: var(--deep-dark); transition: var(--transition); }
.site-header.scrolled { box-shadow: 0 4px 24px rgba(0, 0, 0, 0.35); }
.nav-inner { display: flex; align-items: center; justify-content: space-between; height: 76px; }
.brand { display: flex; align-items: center; gap: 10px; flex-shrink: 0; }
.brand-icon { width: 40px; height: 40px; border-radius: 50%; background: var(--emerald); display: flex; align-items: center; justify-content: center; color: #fff; font-size: 18px; box-shadow: var(--shadow-btn); }
.brand-text strong { display: block; color: #fff; font-size: 18px; font-weight: 700; line-height: 1.2; letter-spacing: -0.01em; }
.brand-text em { display: block; color: rgba(255, 255, 255, 0.6); font-size: 11px; font-style: normal; letter-spacing: 0.08em; }
.site-nav { display: flex; gap: 36px; }
.site-nav a { color: rgba(255, 255, 255, 0.85); font-size: 15px; font-weight: 500; padding: 10px 0; position: relative; transition: var(--transition); }
.site-nav a::after { content: ''; position: absolute; bottom: 0; left: 0; right: 0; height: 3px; background: var(--emerald); border-radius: 2px; transform: scaleX(0); transition: transform 0.3s ease; }
.site-nav a:hover { color: #fff; }
.site-nav a:hover::after { transform: scaleX(1); }
.site-nav a.active { color: #fff; }
.site-nav a.active::after { transform: scaleX(1); }
.nav-cta { background: var(--emerald); color: #fff; border: none; padding: 0.9em 1.8em; border-radius: var(--radius-btn); font-weight: 600; font-size: 14px; cursor: pointer; box-shadow: var(--shadow-btn); transition: var(--transition); display: inline-flex; align-items: center; gap: 8px; }
.nav-cta:hover { background: #00a080; color: #fff; transform: translateY(-2px); box-shadow: 0 6px 20px rgba(0, 184, 148, 0.4); }
.nav-toggle { display: none; background: transparent; border: none; color: #fff; font-size: 24px; cursor: pointer; padding: 8px; z-index: 1100; }
main { margin-top: 76px; }
.btn { display: inline-flex; align-items: center; justify-content: center; padding: 0.9em 2em; border-radius: var(--radius-btn); font-weight: 600; font-size: 15px; cursor: pointer; border: none; transition: var(--transition); text-align: center; }
.btn-primary { background: var(--emerald); color: #fff; box-shadow: var(--shadow-btn); }
.btn-primary:hover { background: #00a080; color: #fff; transform: translateY(-2px); box-shadow: 0 6px 20px rgba(0, 184, 148, 0.42); }
.btn-outline { background: transparent; color: #fff; border: 1px solid rgba(255, 255, 255, 0.7); }
.btn-outline:hover { border-color: var(--emerald); color: var(--emerald); background: rgba(0, 184, 148, 0.08); }
.btn-outline-dark { background: transparent; color: var(--text-primary); border: 1px solid var(--border); }
.btn-outline-dark:hover { border-color: var(--emerald); color: var(--emerald); }
.breadcrumb-area { background: var(--light-bg); padding: 18px 0; border-bottom: 1px solid var(--border); }
.breadcrumb { display: flex; align-items: center; flex-wrap: wrap; font-size: 13px; color: var(--text-secondary); }
.breadcrumb a { color: var(--text-secondary); }
.breadcrumb a:hover { color: var(--emerald); }
.breadcrumb .b-sep { margin: 0 10px; color: var(--text-muted); font-size: 12px; }
.breadcrumb .b-cat { color: var(--text-secondary); }
.breadcrumb .b-current { color: var(--text-primary); font-weight: 500; max-width: 280px; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.article-head { background: var(--card-bg); padding: 56px 0 44px; border-bottom: 1px solid var(--border); }
.article-head-inner { max-width: 860px; margin: 0 auto; text-align: center; }
.article-head h1 { font-size: 42px; font-weight: 700; color: var(--deep-dark); line-height: 1.3; margin: 0 0 18px; letter-spacing: -0.02em; }
.article-meta { display: flex; justify-content: center; flex-wrap: wrap; gap: 14px 24px; align-items: center; }
.article-tag { display: inline-block; background: rgba(0, 184, 148, 0.1); color: var(--emerald); padding: 4px 16px; border-radius: var(--radius-badge); font-size: 13px; font-weight: 600; border: 1px solid rgba(0, 184, 148, 0.2); }
.meta-item { font-size: 14px; color: var(--text-secondary); display: inline-flex; align-items: center; gap: 6px; }
.meta-item i { color: var(--text-muted); }
.article-main { padding: 64px 0 80px; background: var(--light-bg); }
.article-body-col { max-width: 860px; margin: 0 auto; }
.article-content { background: var(--card-bg); padding: 48px 56px; border-radius: var(--radius-large); box-shadow: var(--shadow-card); font-size: 17px; line-height: 1.8; color: var(--text-primary); }
.article-content p { margin-bottom: 1.6em; }
.article-content h2 { font-size: 26px; font-weight: 700; color: var(--deep-dark); margin: 2em 0 0.8em; line-height: 1.3; }
.article-content h3 { font-size: 20px; font-weight: 600; color: var(--deep-dark); margin: 1.6em 0 0.6em; }
.article-content h2:first-child, .article-content h3:first-child { margin-top: 0; }
.article-content ul, .article-content ol { margin: 0 0 1.5em 1.4em; padding-left: 0; }
.article-content li { margin-bottom: 0.6em; }
.article-content blockquote { border-left: 4px solid var(--emerald); padding: 1.2em 1.6em; background: var(--light-bg); margin: 1.8em 0; color: var(--text-secondary); border-radius: 0 8px 8px 0; }
.article-content blockquote p:last-child { margin-bottom: 0; }
.article-content img { max-width: 100%; border-radius: var(--radius-card); margin: 1.8em auto; }
.article-content table { width: 100%; border-collapse: collapse; margin: 1.8em 0; font-size: 15px; }
.article-content table th, .article-content table td { border: 1px solid var(--border); padding: 12px 16px; text-align: left; }
.article-content table th { background: var(--light-bg); font-weight: 600; color: var(--deep-dark); }
.article-content a { color: var(--emerald); text-decoration: underline; }
.article-content a:hover { color: #00a080; }
.article-empty { text-align: center; padding: 80px 40px; background: var(--card-bg); border-radius: var(--radius-large); box-shadow: var(--shadow-card); }
.article-empty i { font-size: 48px; color: var(--text-muted); margin-bottom: 20px; }
.article-empty h2 { font-size: 26px; color: var(--deep-dark); margin-bottom: 12px; }
.article-empty p { color: var(--text-secondary); margin-bottom: 24px; }
.related-section { padding: 80px 0; background: var(--deep-dark); }
.related-section .section-head { text-align: center; margin-bottom: 48px; }
.related-section .section-head h2 { color: #fff; font-size: 30px; font-weight: 700; margin-bottom: 8px; letter-spacing: -0.01em; }
.related-section .section-head p { color: rgba(255, 255, 255, 0.6); font-size: 15px; margin: 0; }
.related-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 28px; }
.related-card { background: var(--dark-secondary); border-radius: var(--radius-card); overflow: hidden; display: block; transition: var(--transition); height: 100%; }
.related-card:hover { transform: translateY(-6px); box-shadow: 0 8px 30px rgba(0, 0, 0, 0.4); }
.related-thumb { width: 100%; height: 180px; overflow: hidden; position: relative; }
.related-thumb img { width: 100%; height: 100%; object-fit: cover; transition: transform 0.4s ease; }
.related-card:hover .related-thumb img { transform: scale(1.05); }
.related-card h3 { color: #fff; font-size: 16px; font-weight: 500; padding: 18px 20px 20px; line-height: 1.5; margin: 0; }
.related-card:hover h3 { color: var(--emerald); }
.back-entry { padding: 28px 0 48px; background: var(--light-bg); }
.back-entry .container { display: flex; justify-content: center; }
.back-link { display: inline-flex; align-items: center; gap: 8px; color: var(--text-secondary); font-size: 14px; padding: 10px 24px; border: 1px solid var(--border); border-radius: var(--radius-btn); background: #fff; transition: var(--transition); }
.back-link:hover { color: var(--emerald); border-color: var(--emerald); box-shadow: var(--shadow-card); }
.footer { background: var(--deep-dark); padding: 64px 0 0; color: rgba(255, 255, 255, 0.7); }
.footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr 1fr; gap: 48px; padding-bottom: 48px; }
.footer-brand .brand { margin-bottom: 16px; }
.footer-brand p { font-size: 14px; line-height: 1.8; color: rgba(255, 255, 255, 0.55); max-width: 320px; }
.footer-col h4 { color: #fff; font-size: 16px; font-weight: 600; margin-bottom: 20px; }
.footer-col a { display: block; color: rgba(255, 255, 255, 0.55); font-size: 14px; padding: 6px 0; transition: var(--transition); }
.footer-col a:hover { color: var(--emerald); padding-left: 4px; }
.footer-contact { list-style: none; padding: 0; }
.footer-contact li { display: flex; align-items: center; gap: 10px; font-size: 14px; padding: 6px 0; color: rgba(255, 255, 255, 0.55); }
.footer-contact li i { color: var(--emerald); width: 16px; text-align: center; }
.footer-bottom { border-top: 1px solid rgba(255, 255, 255, 0.08); padding: 20px 0; text-align: center; font-size: 13px; color: rgba(255, 255, 255, 0.35); }
@media (max-width: 1024px) {
    .container { padding-left: 32px; padding-right: 32px; }
    .nav-inner { height: 70px; }
    .site-nav { gap: 24px; }
    .site-nav a { font-size: 14px; }
    .footer-grid { grid-template-columns: 1fr 1fr; gap: 32px; }
    .related-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 768px) {
    .container { padding-left: 24px; padding-right: 24px; }
    .nav-cta { display: none; }
    .nav-toggle { display: block; }
    .site-nav { position: fixed; top: 0; right: -100%; width: 100%; height: 100vh; background: var(--deep-dark); flex-direction: column; align-items: center; justify-content: center; gap: 8px; transition: right 0.4s ease; z-index: 1050; }
    .site-nav.open { right: 0; }
    .site-nav a { font-size: 20px; padding: 14px 20px; line-height: 52px; color: rgba(255, 255, 255, 0.9); }
    .site-nav a.active::after { display: none; }
    .site-nav a.active { color: var(--emerald); }
    main { margin-top: 70px; }
    .article-head { padding: 40px 0 32px; }
    .article-head h1 { font-size: 28px; }
    .article-meta { gap: 10px 14px; }
    .article-main { padding: 48px 0 56px; }
    .article-content { padding: 28px 20px; font-size: 16px; border-radius: 12px; }
    .related-section { padding: 56px 0; }
    .related-grid { grid-template-columns: 1fr; gap: 20px; }
    .related-thumb { height: 160px; }
    .footer { padding: 48px 0 0; }
    .footer-grid { grid-template-columns: 1fr; gap: 32px; }
    .back-entry { padding: 20px 0 32px; }
    .breadcrumb .b-current { max-width: 160px; }
}
@media (max-width: 520px) {
    .container { padding-left: 18px; padding-right: 18px; }
    .brand-text strong { font-size: 16px; }
    .article-head h1 { font-size: 24px; }
    .article-content { padding: 20px 16px; font-size: 15px; }
    .article-tag { font-size: 12px; padding: 3px 12px; }
    .meta-item { font-size: 12px; }
    .footer-grid { grid-template-columns: 1fr; }
}

/* roulang page: category1 */
:root {
  --primary: #00B894;
  --accent: #F0A500;
  --dark: #0B1F1F;
  --dark-2: #143232;
  --light: #F7F5F0;
  --white: #FFFFFF;
  --text: #20302E;
  --text-sub: #5E6E6C;
  --gray: #9AA7A4;
  --success: #00C48C;
  --danger: #E56B5A;
  --line: #E3E0D8;
  --radius: 12px;
  --radius-btn: 8px;
  --shadow: 0 4px 20px rgba(11, 31, 31, 0.06);
  --shadow-dark: 0 2px 12px rgba(0, 0, 0, 0.25);
  --font-stack: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
}
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: var(--font-stack);
  font-size: 16px;
  line-height: 1.8;
  color: var(--text);
  background: var(--light);
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; height: auto; display: block; }
a { color: var(--primary); text-decoration: none; }
a:hover { color: var(--primary); }
ul, ol { list-style: none; }
button, input, select, textarea { font-family: inherit; font-size: inherit; }
a:focus-visible, button:focus-visible {
  outline: 3px solid rgba(0, 184, 148, 0.5);
  outline-offset: 2px;
}
.container {
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 24px;
}
.container.narrow { max-width: 760px; margin: 0 auto; }

/* 按钮 */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.9em 2em;
  font-size: 15px;
  font-weight: 600;
  border-radius: var(--radius-btn);
  border: none;
  cursor: pointer;
  text-decoration: none;
  line-height: 1.2;
  transition: transform 0.3s, box-shadow 0.3s, background 0.3s, color 0.3s;
  white-space: nowrap;
}
.btn-primary {
  background: var(--primary);
  color: #fff;
  box-shadow: 0 4px 12px rgba(0, 184, 148, 0.28);
}
.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(0, 184, 148, 0.4);
  color: #fff;
}
.btn-primary:active { transform: translateY(0); box-shadow: 0 2px 8px rgba(0, 184, 148, 0.3); }
.btn-outline {
  background: transparent;
  color: #fff;
  border: 1px solid rgba(255, 255, 255, 0.8);
}
.btn-outline:hover {
  background: rgba(255, 255, 255, 0.1);
  border-color: #fff;
  color: #fff;
  transform: translateY(-2px);
}
.btn-lg { padding: 1em 2.6em; font-size: 16px; }

/* 导航 */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1002;
  background: var(--dark);
  height: 76px;
  transition: box-shadow 0.3s, background 0.3s;
}
.site-header.scrolled {
  box-shadow: 0 4px 24px rgba(0, 0, 0, 0.35);
  background: rgba(11, 31, 31, 0.97);
}
.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 76px;
}
.brand {
  display: flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
  flex-shrink: 0;
}
.brand-icon {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: var(--primary);
  color: #fff;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 17px;
  box-shadow: 0 0 0 4px rgba(0, 184, 148, 0.18);
}
.brand-text { display: flex; flex-direction: column; line-height: 1.25; }
.brand-text strong { color: #fff; font-size: 21px; font-weight: 700; letter-spacing: 0.02em; }
.brand-text em { color: rgba(255, 255, 255, 0.6); font-size: 12px; font-style: normal; letter-spacing: 2px; }
.site-nav { display: flex; gap: 34px; align-items: center; }
.site-nav a {
  color: rgba(255, 255, 255, 0.85);
  text-decoration: none;
  font-size: 15px;
  font-weight: 400;
  position: relative;
  padding: 8px 2px;
  transition: color 0.3s;
}
.site-nav a::after {
  content: '';
  position: absolute;
  left: 0;
  bottom: -4px;
  width: 0;
  height: 3px;
  background: var(--primary);
  border-radius: 2px;
  transition: width 0.3s;
}
.site-nav a:hover { color: #fff; }
.site-nav a:hover::after { width: 100%; }
.site-nav a.active { color: #fff; font-weight: 500; }
.site-nav a.active::after { width: 100%; }
.nav-cta { margin-left: 10px; padding: 0.7em 1.6em; font-size: 14px; }
.nav-toggle {
  display: none;
  background: none;
  border: none;
  color: #fff;
  font-size: 26px;
  cursor: pointer;
  padding: 8px 10px;
  z-index: 1003;
}

/* 页头导语 */
.page-lead {
  padding: 170px 0 60px;
  background: var(--light);
}
.breadcrumb {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  font-size: 14px;
  color: var(--text-sub);
  margin-bottom: 24px;
  gap: 8px;
}
.breadcrumb a { color: var(--text-sub); text-decoration: none; transition: color 0.3s; }
.breadcrumb a:hover { color: var(--primary); }
.breadcrumb .sep { color: #c9d2cf; }
.page-lead h1 {
  font-size: 44px;
  line-height: 1.3;
  font-weight: 700;
  color: var(--dark);
  margin-bottom: 18px;
  letter-spacing: -0.01em;
}
.lead-desc {
  max-width: 660px;
  font-size: 16px;
  line-height: 1.9;
  color: var(--text-sub);
}
.lead-desc strong { font-weight: 600; color: var(--text); }

/* 通用区块 */
.section-head {
  text-align: center;
  margin-bottom: 48px;
}
.section-head h2 {
  font-size: 32px;
  color: var(--dark);
  font-weight: 700;
  line-height: 1.3;
  margin-bottom: 12px;
  letter-spacing: -0.01em;
}
.section-head p { color: var(--text-sub); font-size: 15px; }

/* 服务列表 */
.service-catalog {
  padding: 96px 0;
  background: var(--white);
}
.service-list {
  display: flex;
  flex-direction: column;
  gap: 36px;
}
.service-item {
  display: flex;
  gap: 30px;
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 28px 28px 28px 32px;
  position: relative;
  transition: box-shadow 0.3s, transform 0.3s, border-color 0.3s;
}
.service-item:hover {
  box-shadow: var(--shadow);
  transform: translateY(-3px);
  border-color: rgba(0, 184, 148, 0.35);
}
.service-num {
  position: absolute;
  top: -12px;
  left: 30px;
  background: var(--dark);
  color: var(--accent);
  font-size: 13px;
  font-weight: 700;
  padding: 4px 14px;
  border-radius: 16px;
  font-variant-numeric: tabular-nums;
  letter-spacing: 0.03em;
}
.service-media {
  flex: 0 0 260px;
}
.service-media img {
  width: 260px;
  height: 175px;
  object-fit: cover;
  border-radius: 10px;
  display: block;
  background: var(--light);
}
.service-body { flex: 1; min-width: 0; }
.service-body h3 {
  font-size: 21px;
  color: var(--dark);
  font-weight: 600;
  line-height: 1.4;
  margin-bottom: 10px;
}
.service-body p {
  font-size: 15px;
  color: var(--text-sub);
  line-height: 1.8;
  margin-bottom: 14px;
}
.more-link {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  color: var(--primary);
  font-size: 14px;
  font-weight: 600;
  text-decoration: none;
  transition: color 0.3s;
}
.more-link i { transition: transform 0.3s; }
.more-link:hover { color: var(--primary); }
.more-link:hover i { transform: translateX(5px); }

/* 数据服务保障 */
.guarantee {
  background: var(--dark);
  padding: 96px 0;
}
.guarantee .section-head h2 { color: #fff; }
.guarantee .section-head p { color: rgba(255, 255, 255, 0.6); }
.guarantee-grid { display: flex; gap: 24px; }
.guarantee-card {
  background: var(--dark-2);
  border-radius: var(--radius);
  padding: 34px 28px;
  height: 100%;
  transition: transform 0.3s, box-shadow 0.3s, background 0.3s;
}
.guarantee-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-dark);
  background: #1a3d3d;
}
.guarantee-card i {
  font-size: 30px;
  color: var(--primary);
  margin-bottom: 20px;
  display: block;
}
.guarantee-card h3 {
  color: #fff;
  font-size: 20px;
  font-weight: 600;
  margin-bottom: 10px;
}
.guarantee-card p {
  color: rgba(255, 255, 255, 0.65);
  font-size: 14px;
  line-height: 1.75;
  margin-bottom: 0;
}

/* 相关服务横条 */
.rel-cta {
  padding: 72px 0;
  background: var(--light);
}
.rel-cta-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 28px;
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 44px 52px;
  box-shadow: var(--shadow);
}
.rel-cta-inner h2 {
  font-size: 24px;
  color: var(--dark);
  font-weight: 700;
  margin-bottom: 8px;
  line-height: 1.4;
}
.rel-cta-inner p { color: var(--text-sub); font-size: 15px; margin-bottom: 0; }

/* 页脚 */
.footer {
  background: var(--dark);
  color: rgba(255, 255, 255, 0.7);
  padding: 72px 0 0;
}
.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1.2fr;
  gap: 40px;
  padding-bottom: 56px;
}
.footer-brand p {
  font-size: 14px;
  color: rgba(255, 255, 255, 0.55);
  line-height: 1.8;
  margin-top: 16px;
  max-width: 320px;
}
.footer-col h4 {
  color: #fff;
  font-size: 16px;
  font-weight: 600;
  margin-bottom: 20px;
}
.footer-col a {
  display: block;
  color: rgba(255, 255, 255, 0.55);
  text-decoration: none;
  font-size: 14px;
  padding: 6px 0;
  transition: color 0.3s, padding-left 0.3s;
}
.footer-col a:hover { color: var(--primary); padding-left: 6px; }
.footer-contact {
  list-style: none;
}
.footer-contact li {
  font-size: 14px;
  color: rgba(255, 255, 255, 0.55);
  padding: 6px 0;
  display: flex;
  align-items: flex-start;
  gap: 10px;
}
.footer-contact i { width: 20px; color: var(--primary); margin-top: 7px; }
.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  padding: 24px 0;
  text-align: center;
  color: rgba(255, 255, 255, 0.4);
  font-size: 14px;
}
.footer-bottom p { margin: 0; }

/* 响应式 */
@media (max-width: 1024px) {
  .footer-grid { grid-template-columns: 1fr 1fr; gap: 28px; }
  .container { padding: 0 20px; }
  .service-catalog { padding: 80px 0; }
  .guarantee { padding: 80px 0; }
}
@media (max-width: 768px) {
  .nav-toggle { display: inline-flex; }
  .site-nav {
    position: fixed;
    inset: 0;
    width: 100%;
    height: 100vh;
    background: var(--dark);
    flex-direction: column;
    align-items: flex-start;
    justify-content: flex-start;
    gap: 0;
    padding: 110px 36px 40px;
    transform: translateX(100%);
    transition: transform 0.35s ease;
    z-index: 1001;
    overflow-y: auto;
  }
  .site-nav.open { transform: translateX(0); }
  .site-nav a {
    font-size: 20px;
    line-height: 52px;
    width: 100%;
    color: rgba(255, 255, 255, 0.85);
    border-bottom: 1px solid rgba(255, 255, 255, 0.06);
    display: block;
  }
  .site-nav a::after { display: none; }
  .site-nav a.active { color: var(--primary); }
  .nav-cta { display: none; }
  .page-lead { padding: 140px 0 48px; }
  .page-lead h1 { font-size: 32px; }
  .lead-desc { font-size: 15px; }
  .service-item { flex-direction: column; padding: 28px 24px; }
  .service-media { flex: 0 0 auto; }
  .service-media img { width: 100%; height: auto; aspect-ratio: 16/10; }
  .service-num { left: 24px; }
  .guarantee-grid { flex-direction: column; }
  .rel-cta-inner { flex-direction: column; text-align: center; padding: 32px 24px; }
  .footer-grid { grid-template-columns: 1fr; }
  .section-head h2 { font-size: 24px; }
  .section-head p { font-size: 14px; }
  .container.narrow { max-width: 100%; padding: 0 20px; }
}
@media (max-width: 520px) {
  .brand-text strong { font-size: 18px; }
  .brand-icon { width: 36px; height: 36px; font-size: 15px; }
  .page-lead h1 { font-size: 28px; }
  .service-item { padding: 24px 18px; }
  .btn { padding: 0.8em 1.6em; }
}

/* roulang page: category2 */
:root {
  --color-primary: #00B894;
  --color-primary-dark: #00997A;
  --color-secondary: #F0A500;
  --color-dark: #0B1F1F;
  --color-dark-2: #143232;
  --color-light: #F7F5F0;
  --color-card: #FFFFFF;
  --color-text: #20302E;
  --color-text-2: #5E6E6C;
  --color-muted: #9AA7A4;
  --color-success: #00C48C;
  --color-danger: #E56B5A;
  --color-divider: #E3E0D8;
  --radius-card: 12px;
  --radius-btn: 8px;
  --radius-badge: 16px;
  --radius-input: 8px;
  --radius-img: 16px;
  --shadow-card: 0 4px 20px rgba(11, 31, 31, 0.06);
  --shadow-dark: 0 2px 12px rgba(0, 0, 0, 0.25);
  --shadow-btn: 0 4px 12px rgba(0, 184, 148, 0.28);
  --shadow-btn-hover: 0 6px 20px rgba(0, 184, 148, 0.32);
  --font-sans: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
  --container-max: 1280px;
}
*, *::before, *::after { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
body {
  font-family: var(--font-sans);
  font-size: 17px;
  line-height: 1.8;
  color: var(--color-text);
  background: var(--color-light);
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; display: block; }
a { color: var(--color-primary); text-decoration: none; transition: color 0.2s ease; }
a:hover { color: var(--color-primary-dark); }
h1, h2, h3, h4, h5 { line-height: 1.3; font-weight: 700; margin: 0; }
p { margin: 0; }
ul, ol { margin: 0; padding: 0; list-style: none; }
button, input, select, textarea { font-family: inherit; font-size: inherit; }
.container { max-width: var(--container-max); margin: 0 auto; padding: 0 24px; position: relative; z-index: 1; }
.section-pad { padding: 96px 0; }
@media (max-width: 768px) { .section-pad { padding: 64px 0; } }

/* ===== Header ===== */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  height: 76px;
  background: var(--color-dark);
  border-bottom: 1px solid rgba(255,255,255,0.06);
  transition: height 0.3s ease, box-shadow 0.3s ease, background 0.3s ease;
}
.site-header.scrolled {
  height: 64px;
  box-shadow: 0 4px 24px rgba(0,0,0,0.35);
  background: rgba(11, 31, 31, 0.97);
}
.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
  gap: 20px;
}
.brand {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-shrink: 0;
}
.brand-icon {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: var(--color-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-size: 17px;
  box-shadow: 0 0 0 3px rgba(0,184,148,0.25);
}
.brand-text { display: flex; flex-direction: column; line-height: 1.2; }
.brand-text strong { font-size: 19px; color: #fff; letter-spacing: 0.02em; }
.brand-text em { font-style: normal; font-size: 12px; color: rgba(255,255,255,0.65); letter-spacing: 0.08em; }
.site-nav {
  display: flex;
  align-items: center;
  gap: 32px;
}
.site-nav a {
  color: rgba(255,255,255,0.85);
  font-size: 15px;
  font-weight: 500;
  padding: 6px 2px;
  position: relative;
  transition: color 0.2s;
}
.site-nav a::after {
  content: '';
  position: absolute;
  left: 0;
  bottom: -2px;
  width: 100%;
  height: 3px;
  background: var(--color-primary);
  border-radius: 2px;
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.25s ease;
}
.site-nav a:hover { color: #fff; }
.site-nav a:hover::after { transform: scaleX(1); }
.site-nav a.active { color: #fff; }
.site-nav a.active::after { transform: scaleX(1); }
.nav-cta {
  flex-shrink: 0;
  font-size: 14px;
  font-weight: 600;
  padding: 10px 20px;
  border-radius: var(--radius-btn);
  background: var(--color-primary);
  color: #fff;
  box-shadow: var(--shadow-btn);
  transition: all 0.25s ease;
  border: 1px solid transparent;
}
.nav-cta:hover {
  background: var(--color-primary-dark);
  box-shadow: var(--shadow-btn-hover);
  transform: translateY(-2px);
  color: #fff;
}
.nav-toggle {
  display: none;
  background: none;
  border: none;
  color: #fff;
  font-size: 22px;
  cursor: pointer;
  padding: 8px;
}
@media (max-width: 992px) {
  .site-nav {
    position: fixed;
    top: 0;
    right: -100%;
    width: 100%;
    height: 100vh;
    background: var(--color-dark);
    flex-direction: column;
    justify-content: center;
    gap: 12px;
    transition: right 0.35s ease;
    padding: 40px 32px;
    z-index: 99;
  }
  .site-nav.open { right: 0; }
  .site-nav a {
    font-size: 20px;
    color: rgba(255,255,255,0.9);
    padding: 14px 0;
    width: 100%;
    text-align: center;
    border-bottom: 1px solid rgba(255,255,255,0.06);
  }
  .site-nav a::after { display: none; }
  .site-nav a.active { color: var(--color-primary); }
  .nav-toggle {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    z-index: 101;
    position: relative;
  }
  .nav-toggle.active i::before { content: '\f00d'; }
  .nav-cta { display: none; }
}

/* ===== Page Hero / 导语区 ===== */
.page-hero {
  background: var(--color-light);
  padding: 72px 0 56px;
  border-bottom: 1px solid var(--color-divider);
}
.breadcrumb {
  font-size: 13px;
  color: var(--color-muted);
  margin-bottom: 24px;
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}
.breadcrumb a { color: var(--color-text-2); }
.breadcrumb a:hover { color: var(--color-primary); }
.breadcrumb .sep { color: #C0C9C6; margin: 0 2px; }
.page-hero h1 {
  font-size: 44px;
  color: var(--color-text);
  letter-spacing: -0.01em;
  margin-bottom: 16px;
  font-weight: 700;
}
.page-hero .lead {
  font-size: 17px;
  color: var(--color-text-2);
  max-width: 760px;
  line-height: 1.8;
}
@media (max-width: 768px) {
  .page-hero { padding: 48px 0 40px; }
  .page-hero h1 { font-size: 30px; }
  .page-hero .lead { font-size: 15px; }
}

/* ===== 瀑布网格 ===== */
.masonry-section {
  background: var(--color-card);
  padding: 96px 0;
}
.section-head {
  margin-bottom: 48px;
  max-width: 640px;
}
.section-head h2 {
  font-size: 30px;
  color: var(--color-text);
  margin-bottom: 12px;
}
.section-head p {
  font-size: 16px;
  color: var(--color-text-2);
  line-height: 1.6;
}
.masonry-grid {
  column-count: 3;
  column-gap: 24px;
}
.masonry-item {
  break-inside: avoid;
  margin-bottom: 24px;
  border-radius: var(--radius-card);
  overflow: hidden;
  background: var(--color-card);
  border: 1px solid var(--color-divider);
  box-shadow: var(--shadow-card);
  transition: box-shadow 0.3s ease, transform 0.3s ease, border-color 0.3s ease;
}
.masonry-item:hover {
  box-shadow: 0 10px 32px rgba(11,31,31,0.1);
  transform: translateY(-4px);
  border-color: var(--color-primary);
}
.masonry-item .card-img {
  overflow: hidden;
  aspect-ratio: 16 / 10;
}
.masonry-item .card-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.35s ease;
}
.masonry-item:hover .card-img img { transform: scale(1.05); }
.masonry-item .card-body {
  padding: 24px 24px 28px;
}
.masonry-item .card-tag {
  display: inline-block;
  background: rgba(0,184,148,0.1);
  color: var(--color-primary-dark);
  font-size: 13px;
  font-weight: 600;
  padding: 3px 12px;
  border-radius: var(--radius-badge);
  margin-bottom: 12px;
}
.masonry-item .card-body h3 {
  font-size: 18px;
  color: var(--color-text);
  margin-bottom: 10px;
  font-weight: 600;
  line-height: 1.4;
  transition: color 0.2s;
}
.masonry-item:hover .card-body h3 { color: var(--color-primary); }
.masonry-item .card-body p {
  font-size: 14px;
  color: var(--color-text-2);
  line-height: 1.7;
}
@media (max-width: 1024px) {
  .masonry-grid { column-count: 2; }
}
@media (max-width: 768px) {
  .masonry-section { padding: 64px 0; }
  .masonry-grid { column-count: 1; }
  .section-head h2 { font-size: 23px; }
}

/* ===== 访问流程深色区 ===== */
.process-section {
  background: var(--color-dark);
  padding: 96px 0;
}
.process-section .section-head h2 {
  color: #fff;
}
.process-section .section-head p {
  color: rgba(255,255,255,0.65);
}
.process-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  margin-top: 40px;
}
.process-item {
  background: var(--color-dark-2);
  border-radius: var(--radius-card);
  padding: 32px 24px;
  position: relative;
  border-left: 3px solid var(--color-primary);
  transition: transform 0.25s ease, background 0.25s;
}
.process-item:hover {
  background: rgba(20, 50, 50, 0.85);
  transform: translateY(-4px);
}
.process-num {
  font-size: 42px;
  font-weight: 700;
  color: rgba(0,184,148,0.35);
  font-variant-numeric: tabular-nums;
  line-height: 1;
  margin-bottom: 16px;
  display: block;
}
.process-item h3 {
  font-size: 18px;
  color: #fff;
  margin-bottom: 10px;
  font-weight: 600;
}
.process-item p {
  font-size: 14px;
  color: rgba(255,255,255,0.6);
  line-height: 1.7;
}
@media (max-width: 1024px) {
  .process-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 768px) {
  .process-section { padding: 64px 0; }
  .process-grid { grid-template-columns: 1fr; }
}

/* ===== 适用场景 ===== */
.scenario-section {
  background: var(--color-light);
  padding: 96px 0;
}
.scenario-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  margin-top: 40px;
}
.scenario-card {
  background: var(--color-card);
  border: 1px solid var(--color-divider);
  border-radius: var(--radius-card);
  padding: 32px 28px;
  box-shadow: var(--shadow-card);
  transition: box-shadow 0.3s, transform 0.3s, border-color 0.3s;
  position: relative;
}
.scenario-card:hover {
  box-shadow: 0 10px 30px rgba(11,31,31,0.1);
  transform: translateY(-4px);
  border-color: var(--color-primary);
}
.scenario-icon {
  width: 52px;
  height: 52px;
  border-radius: 12px;
  background: rgba(0,184,148,0.12);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 22px;
  color: var(--color-primary);
  margin-bottom: 20px;
}
.scenario-card h3 {
  font-size: 18px;
  color: var(--color-text);
  margin-bottom: 12px;
  font-weight: 600;
}
.scenario-card p {
  font-size: 14px;
  color: var(--color-text-2);
  line-height: 1.7;
}
.scenario-card .scenario-link {
  display: inline-block;
  margin-top: 16px;
  font-size: 14px;
  font-weight: 600;
  color: var(--color-primary);
}
.scenario-card .scenario-link i {
  margin-left: 6px;
  transition: transform 0.2s;
}
.scenario-card .scenario-link:hover i { transform: translateX(4px); }
@media (max-width: 1024px) {
  .scenario-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 768px) {
  .scenario-section { padding: 64px 0; }
  .scenario-grid { grid-template-columns: 1fr; }
}

/* ===== FAQ ===== */
.faq-section {
  background: var(--color-card);
  padding: 96px 0;
}
.faq-section .section-head {
  max-width: 100%;
  text-align: center;
  margin-left: auto;
  margin-right: auto;
}
.faq-wrap {
  max-width: 820px;
  margin: 40px auto 0;
}
.faq-section .accordion {
  background: transparent;
  border-radius: var(--radius-card);
}
.faq-section .accordion-item {
  border-bottom: 1px solid var(--color-divider);
  background: transparent;
}
.faq-section .accordion-item:last-child {
  border-bottom: none;
}
.faq-section .accordion-title {
  font-size: 17px;
  font-weight: 600;
  color: var(--color-text);
  padding: 22px 48px 22px 0;
  position: relative;
  display: block;
  line-height: 1.5;
  transition: color 0.2s;
}
.faq-section .accordion-title:hover { color: var(--color-primary); }
.faq-section .accordion-title::after {
  content: '\f067';
  font-family: 'Font Awesome 6 Free';
  font-weight: 900;
  font-size: 15px;
  color: var(--color-primary);
  position: absolute;
  right: 0;
  top: 50%;
  transform: translateY(-50%) rotate(0deg);
  transition: transform 0.3s ease;
  width: 32px;
  height: 32px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  background: rgba(0,184,148,0.08);
}
.faq-section .accordion-item.is-active .accordion-title::after {
  transform: translateY(-50%) rotate(45deg);
}
.faq-section .accordion-content {
  display: none;
  padding: 0 0 24px;
  font-size: 15px;
  color: var(--color-text-2);
  line-height: 1.8;
}
.faq-section .accordion-item.is-active .accordion-content {
  display: block;
}
@media (max-width: 768px) {
  .faq-section { padding: 64px 0; }
  .faq-section .accordion-title { font-size: 15px; padding-right: 40px; }
  .faq-section .accordion-content { font-size: 14px; }
}
/* Foundation overrides */
.accordion .accordion-item { border-top: none; }
.accordion .accordion-title { border-bottom: none; }

/* ===== 联系表单 ===== */
.contact-section {
  background: var(--color-light);
  padding: 96px 0;
}
.contact-grid {
  display: grid;
  grid-template-columns: 5fr 7fr;
  gap: 48px;
  align-items: start;
}
.contact-info {
  padding: 8px 0;
}
.contact-info h2 {
  font-size: 30px;
  color: var(--color-text);
  margin-bottom: 16px;
}
.contact-info > p {
  font-size: 16px;
  color: var(--color-text-2);
  line-height: 1.7;
  margin-bottom: 32px;
}
.contact-list {
  display: flex;
  flex-direction: column;
  gap: 20px;
}
.contact-list li {
  display: flex;
  align-items: center;
  gap: 16px;
  font-size: 15px;
  color: var(--color-text);
}
.contact-list li i {
  width: 42px;
  height: 42px;
  border-radius: 10px;
  background: rgba(0,184,148,0.1);
  color: var(--color-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 15px;
  flex-shrink: 0;
}
.contact-list li .label {
  font-size: 13px;
  color: var(--color-muted);
  display: block;
  line-height: 1.3;
}
.contact-list li .value {
  font-weight: 600;
  color: var(--color-text);
  display: block;
  line-height: 1.4;
}
.form-card {
  background: var(--color-card);
  border: 1px solid var(--color-divider);
  border-radius: var(--radius-card);
  padding: 36px;
  box-shadow: var(--shadow-card);
}
.form-card .form-title {
  font-size: 20px;
  font-weight: 700;
  color: var(--color-text);
  margin-bottom: 24px;
}
.form-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}
.form-group {
  margin-bottom: 16px;
}
.form-group.full { grid-column: span 2; }
.form-group label {
  display: block;
  font-size: 13px;
  font-weight: 600;
  color: var(--color-text);
  margin-bottom: 6px;
}
.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  padding: 12px 16px;
  border: 1px solid var(--color-divider);
  border-radius: var(--radius-input);
  background: var(--color-light);
  font-size: 15px;
  color: var(--color-text);
  outline: none;
  transition: border-color 0.2s, box-shadow 0.2s;
}
.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  border-color: var(--color-primary);
  border-width: 2px;
  box-shadow: 0 0 0 3px rgba(0,184,148,0.1);
  background: #fff;
}
.form-group textarea {
  resize: vertical;
  min-height: 100px;
}
.btn-submit {
  width: 100%;
  padding: 14px 24px;
  background: var(--color-primary);
  color: #fff;
  border: none;
  border-radius: var(--radius-btn);
  font-size: 15px;
  font-weight: 700;
  cursor: pointer;
  box-shadow: var(--shadow-btn);
  transition: background 0.25s, box-shadow 0.25s, transform 0.25s;
}
.btn-submit:hover {
  background: var(--color-primary-dark);
  box-shadow: var(--shadow-btn-hover);
  transform: translateY(-2px);
}
@media (max-width: 992px) {
  .contact-grid { grid-template-columns: 1fr; gap: 32px; }
}
@media (max-width: 768px) {
  .contact-section { padding: 64px 0; }
  .form-card { padding: 24px; }
  .form-grid { grid-template-columns: 1fr; }
  .form-group.full { grid-column: span 1; }
  .contact-info h2 { font-size: 23px; }
}

/* ===== 相关服务横条 ===== */
.related-bar {
  background: var(--color-primary);
  padding: 56px 0;
}
.related-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  flex-wrap: wrap;
}
.related-inner p {
  font-size: 18px;
  font-weight: 600;
  color: #fff;
  max-width: 700px;
  line-height: 1.6;
}
.related-inner .btn-white {
  flex-shrink: 0;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: #fff;
  color: var(--color-primary-dark);
  font-size: 15px;
  font-weight: 700;
  padding: 14px 28px;
  border-radius: var(--radius-btn);
  transition: transform 0.25s, box-shadow 0.25s;
  box-shadow: 0 4px 16px rgba(0,0,0,0.12);
}
.related-inner .btn-white:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(0,0,0,0.18);
  color: var(--color-primary-dark);
}
.related-inner .btn-white i {
  transition: transform 0.2s;
}
.related-inner .btn-white:hover i { transform: translateX(4px); }
@media (max-width: 768px) {
  .related-bar { padding: 40px 0; }
  .related-inner p { font-size: 16px; }
  .related-inner .btn-white { width: 100%; justify-content: center; }
}

/* ===== Footer ===== */
.footer {
  background: var(--color-dark);
  color: rgba(255,255,255,0.7);
  padding: 72px 0 0;
}
.footer-grid {
  display: grid;
  grid-template-columns: 4fr 2fr 2fr 3fr;
  gap: 40px;
  padding-bottom: 48px;
}
.footer-brand .brand { margin-bottom: 16px; }
.footer-brand p {
  font-size: 14px;
  line-height: 1.8;
  color: rgba(255,255,255,0.55);
  max-width: 320px;
}
.footer-col h4 {
  font-size: 16px;
  color: #fff;
  margin-bottom: 16px;
  font-weight: 600;
}
.footer-col a {
  display: block;
  font-size: 14px;
  color: rgba(255,255,255,0.6);
  padding: 5px 0;
  transition: color 0.2s, padding-left 0.2s;
}
.footer-col a:hover {
  color: var(--color-primary);
  padding-left: 6px;
}
.footer-contact {
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.footer-contact li {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 14px;
  color: rgba(255,255,255,0.6);
}
.footer-contact li i {
  width: 16px;
  color: var(--color-primary);
  text-align: center;
}
.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.08);
  padding: 20px 0;
  text-align: center;
}
.footer-bottom p {
  font-size: 13px;
  color: rgba(255,255,255,0.4);
}
@media (max-width: 1024px) {
  .footer-grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 768px) {
  .footer { padding: 48px 0 0; }
  .footer-grid { grid-template-columns: 1fr; gap: 32px; }
  .footer-bottom p { font-size: 12px; }
}

/* ===== 通用按钮 ===== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 0.9em 2em;
  border-radius: var(--radius-btn);
  font-size: 15px;
  font-weight: 600;
  transition: all 0.25s ease;
  cursor: pointer;
  border: none;
}
.btn-primary {
  background: var(--color-primary);
  color: #fff;
  box-shadow: var(--shadow-btn);
}
.btn-primary:hover {
  background: var(--color-primary-dark);
  box-shadow: var(--shadow-btn-hover);
  transform: translateY(-2px);
  color: #fff;
}
.btn-outline {
  background: transparent;
  color: #fff;
  border: 1px solid rgba(255,255,255,0.7);
}
.btn-outline:hover {
  border-color: #fff;
  background: rgba(255,255,255,0.1);
  color: #fff;
  transform: translateY(-2px);
}
.btn-white {
  background: #fff;
  color: var(--color-primary-dark);
  box-shadow: 0 4px 16px rgba(0,0,0,0.15);
}
.btn-white:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(0,0,0,0.2);
  color: var(--color-primary-dark);
}

/* ===== 响应式通用 ===== */
@media (max-width: 640px) {
  .container { padding: 0 16px; }
  body { font-size: 16px; }
}

/* ===== 焦点可见性 ===== */
a:focus-visible,
button:focus-visible,
input:focus-visible,
textarea:focus-visible,
select:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: 2px;
}

/* ===== 隐藏占位 ===== */
.placeholder-hidden {
  display: none !important;
}