/* ============================================
   Guangzhou Kunfu Technology Co., Ltd.
   Dark Theme - Professional IT Services
   ============================================ */

:root {
    --bg-primary: #100a08;
    --bg-secondary: #1a100c;
    --bg-card: #221814;
    --bg-card-hover: #2e201a;
    --accent: #f59e0b;
    --accent-dim: #d97706;
    --accent-glow: rgba(245, 158, 11, 0.12);
    --text-primary: #f0ede8;
    --text-secondary: #b8a894;
    --text-muted: #887868;
    --border: #3a2a1e;
    --border-light: #4a3828;
    --gradient-1: linear-gradient(135deg, #f59e0b, #ef4444);
    --gradient-2: linear-gradient(135deg, #f59e0b 0%, #fbbf24 50%, #ef4444 100%);
    --shadow: 0 4px 20px rgba(0, 0, 0, 0.5);
}

* {margin:0;padding:0;box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{font-family:'Segoe UI',-apple-system,BlinkMacSystemFont,'Helvetica Neue',Arial,sans-serif;background-color:var(--bg-primary);color:var(--text-primary);line-height:1.7;-webkit-font-smoothing:antialiased;}
a{color:var(--accent);text-decoration:none;transition:color .3s;}
a:hover{color:#fff;}
img{max-width:100%;height:auto;}
.container{max-width:1200px;margin:0 auto;padding:0 24px;}

.site-header{position:fixed;top:0;left:0;right:0;z-index:1000;background:rgba(16,10,8,.9);backdrop-filter:blur(20px);border-bottom:1px solid var(--border);}
.header-inner{display:flex;align-items:center;justify-content:space-between;height:72px;}
.logo{display:flex;align-items:center;gap:12px;font-size:1.2rem;font-weight:700;color:var(--text-primary);}
.logo-icon{width:38px;height:38px;background:var(--gradient-1);border-radius:10px;display:flex;align-items:center;justify-content:center;font-weight:900;font-size:1.1rem;color:#fff;}
.logo span{background:var(--gradient-1);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text;}
.nav-links{display:flex;list-style:none;gap:8px;}
.nav-links a{padding:8px 16px;border-radius:8px;color:var(--text-secondary);font-size:.9rem;font-weight:500;transition:all .3s;}
.nav-links a:hover,.nav-links a.active{color:var(--text-primary);background:rgba(255,255,255,.05);}
.nav-cta{background:var(--gradient-1)!important;color:#fff!important;padding:8px 20px!important;border-radius:8px!important;font-weight:600!important;}
.nav-cta:hover{opacity:.9;transform:translateY(-1px);}
.mobile-toggle{display:none;background:none;border:none;color:var(--text-primary);font-size:1.5rem;cursor:pointer;padding:8px;}

.hero{min-height:100vh;display:flex;align-items:center;position:relative;overflow:hidden;padding-top:72px;}
.hero-bg{position:absolute;inset:0;background:radial-gradient(ellipse at 20% 50%,rgba(245,158,11,.06) 0%,transparent 50%),radial-gradient(ellipse at 80% 50%,rgba(239,68,68,.06) 0%,transparent 50%);pointer-events:none;}
.hero-grid{position:absolute;inset:0;background-image:linear-gradient(rgba(255,255,255,.02) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.02) 1px,transparent 1px);background-size:60px 60px;pointer-events:none;}
.hero-content{position:relative;z-index:2;max-width:800px;}
.hero-badge{display:inline-flex;align-items:center;gap:8px;padding:6px 16px;background:rgba(245,158,11,.1);border:1px solid rgba(245,158,11,.2);border-radius:50px;font-size:.8rem;color:var(--accent);margin-bottom:24px;}
.hero h1{font-size:3.5rem;font-weight:800;line-height:1.15;margin-bottom:24px;letter-spacing:-.02em;}
.hero h1 .highlight{background:var(--gradient-2);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text;}
.hero p{font-size:1.15rem;color:var(--text-secondary);max-width:600px;margin-bottom:36px;line-height:1.8;}
.hero-buttons{display:flex;gap:16px;flex-wrap:wrap;}
.btn{display:inline-flex;align-items:center;gap:8px;padding:14px 32px;border-radius:10px;font-weight:600;font-size:.95rem;border:none;cursor:pointer;transition:all .3s;}
.btn-primary{background:var(--gradient-1);color:#fff;}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 8px 30px var(--accent-glow);}
.btn-secondary{background:transparent;color:var(--text-primary);border:1px solid var(--border-light);}
.btn-secondary:hover{border-color:var(--accent);background:rgba(245,158,11,.05);transform:translateY(-2px);}

.section{padding:100px 0;}
.section-header{text-align:center;margin-bottom:64px;}
.section-tag{display:inline-block;padding:4px 14px;background:rgba(245,158,11,.08);border:1px solid rgba(245,158,11,.15);border-radius:50px;font-size:.8rem;color:var(--accent);margin-bottom:16px;text-transform:uppercase;letter-spacing:1px;}
.section-header h2{font-size:2.5rem;font-weight:700;margin-bottom:16px;}
.section-header p{color:var(--text-secondary);max-width:600px;margin:0 auto;font-size:1.05rem;}

.services-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(340px,1fr));gap:24px;}
.service-card{background:var(--bg-card);border:1px solid var(--border);border-radius:16px;padding:40px 32px;transition:all .4s;position:relative;overflow:hidden;}
.service-card::before{content:'';position:absolute;top:0;left:0;right:0;height:3px;background:var(--gradient-1);opacity:0;transition:opacity .4s;}
.service-card:hover{border-color:var(--border-light);transform:translateY(-4px);background:var(--bg-card-hover);}
.service-card:hover::before{opacity:1;}
.service-icon{width:56px;height:56px;background:rgba(245,158,11,.1);border-radius:14px;display:flex;align-items:center;justify-content:center;font-size:1.5rem;margin-bottom:20px;}
.service-card h3{font-size:1.2rem;margin-bottom:12px;}
.service-card p{color:var(--text-secondary);font-size:.9rem;line-height:1.7;}

.about-grid{display:grid;grid-template-columns:1fr 1fr;gap:60px;align-items:center;}
.about-text h2{font-size:2.5rem;margin-bottom:24px;}
.about-text p{color:var(--text-secondary);margin-bottom:20px;}
.stats-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:24px;}
.stat-item{background:var(--bg-card);border:1px solid var(--border);border-radius:14px;padding:28px;text-align:center;}
.stat-number{font-size:2rem;font-weight:800;background:var(--gradient-1);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text;}
.stat-label{color:var(--text-secondary);font-size:.85rem;margin-top:4px;}

.features-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(260px,1fr));gap:20px;}
.feature-card{background:var(--bg-card);border:1px solid var(--border);border-radius:14px;padding:28px 24px;transition:all .3s;}
.feature-card:hover{border-color:var(--border-light);transform:translateY(-2px);}
.feature-card .icon{font-size:1.8rem;margin-bottom:14px;}
.feature-card h4{font-size:1.05rem;margin-bottom:8px;}
.feature-card p{color:var(--text-secondary);font-size:.88rem;}

.team-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:24px;}
.team-card{background:var(--bg-card);border:1px solid var(--border);border-radius:16px;padding:36px 24px;text-align:center;transition:all .3s;}
.team-card:hover{border-color:var(--border-light);transform:translateY(-4px);}
.team-avatar{width:80px;height:80px;border-radius:50%;background:var(--gradient-1);margin:0 auto 16px;display:flex;align-items:center;justify-content:center;font-size:2rem;color:#fff;font-weight:700;}
.team-card h4{font-size:1rem;margin-bottom:4px;}
.team-card .role{font-size:.85rem;color:var(--accent);margin-bottom:12px;}
.team-card p{font-size:.85rem;color:var(--text-secondary);line-height:1.6;}

.contact-grid{display:grid;grid-template-columns:1fr 1fr;gap:48px;}
.contact-info h3{font-size:1.8rem;margin-bottom:24px;}
.contact-details{list-style:none;}
.contact-details li{display:flex;gap:16px;margin-bottom:20px;}
.contact-details .icon{width:44px;height:44px;min-width:44px;background:rgba(245,158,11,.1);border-radius:12px;display:flex;align-items:center;justify-content:center;font-size:1.1rem;}
.contact-details .label{font-size:.8rem;color:var(--text-muted);text-transform:uppercase;letter-spacing:1px;}
.contact-details .value{color:var(--text-primary);font-weight:500;}
.contact-form{background:var(--bg-card);border:1px solid var(--border);border-radius:16px;padding:36px;}
.form-group{margin-bottom:20px;}
.form-group label{display:block;font-size:.85rem;color:var(--text-secondary);margin-bottom:6px;font-weight:500;}
.form-group input,.form-group textarea,.form-group select{width:100%;padding:12px 16px;background:var(--bg-primary);border:1px solid var(--border);border-radius:10px;color:var(--text-primary);font-size:.95rem;font-family:inherit;transition:border-color .3s;}
.form-group input:focus,.form-group textarea:focus,.form-group select:focus{outline:none;border-color:var(--accent);}
.form-group textarea{min-height:120px;resize:vertical;}
.form-row{display:grid;grid-template-columns:1fr 1fr;gap:16px;}

.site-footer{background:var(--bg-secondary);border-top:1px solid var(--border);padding:60px 0 30px;}
.footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr 1fr;gap:40px;margin-bottom:40px;}
.footer-brand p{color:var(--text-secondary);font-size:.9rem;margin-top:12px;max-width:300px;}
.footer-heading{font-size:.9rem;font-weight:600;margin-bottom:16px;text-transform:uppercase;letter-spacing:1px;}
.footer-links{list-style:none;}
.footer-links li{margin-bottom:10px;}
.footer-links a{color:var(--text-secondary);font-size:.88rem;}
.footer-links a:hover{color:var(--accent);}
.footer-bottom{border-top:1px solid var(--border);padding-top:24px;display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:16px;}
.footer-bottom p{color:var(--text-muted);font-size:.83rem;}

.page-header{padding-top:136px;padding-bottom:48px;background:radial-gradient(ellipse at 50% 0%,rgba(245,158,11,.05) 0%,transparent 60%);text-align:center;}
.page-header h1{font-size:2.8rem;font-weight:800;margin-bottom:12px;}
.page-header p{color:var(--text-secondary);font-size:1.05rem;max-width:600px;margin:0 auto;}

.content-page{background:var(--bg-secondary);border:1px solid var(--border);border-radius:16px;padding:48px;margin-bottom:60px;}
.content-page h2{font-size:1.6rem;margin-top:40px;margin-bottom:16px;color:var(--accent);}
.content-page h3{font-size:1.2rem;margin-top:32px;margin-bottom:12px;}
.content-page p{color:var(--text-secondary);margin-bottom:16px;line-height:1.8;}
.content-page ul,.content-page ol{color:var(--text-secondary);margin-bottom:16px;padding-left:24px;}
.content-page li{margin-bottom:8px;}
.content-page strong{color:var(--text-primary);}
.last-updated{color:var(--text-muted);font-size:.85rem;margin-bottom:24px;font-style:italic;}

.service-detail{background:var(--bg-card);border:1px solid var(--border);border-radius:16px;padding:40px;margin-bottom:24px;}
.service-detail h3{font-size:1.3rem;margin-bottom:16px;}
.service-detail p{color:var(--text-secondary);margin-bottom:12px;}
.service-detail ul{color:var(--text-secondary);padding-left:20px;margin-bottom:12px;}
.service-detail li{margin-bottom:6px;}

.fade-in{opacity:0;transform:translateY(20px);transition:opacity .6s ease,transform .6s ease;}
.fade-in.visible{opacity:1;transform:translateY(0);}

@media(max-width:768px){
.mobile-toggle{display:block;}
.nav-links{display:none;position:absolute;top:72px;left:0;right:0;background:var(--bg-primary);border-bottom:1px solid var(--border);flex-direction:column;padding:16px 24px;gap:4px;}
.nav-links.open{display:flex;}
.hero h1{font-size:2.2rem;}
.about-grid,.contact-grid{grid-template-columns:1fr;gap:32px;}
.footer-grid{grid-template-columns:1fr 1fr;}
.section{padding:60px 0;}
.section-header h2{font-size:1.8rem;}
.content-page{padding:24px;}
.form-row{grid-template-columns:1fr;}}
@media(max-width:480px){
.hero h1{font-size:1.8rem;}
.footer-grid,.stats-grid,.services-grid{grid-template-columns:1fr;}}