/* style.css - 平博体育 PINBO SPORTS */
*{margin:0;padding:0;box-sizing:border-box;font-family:system-ui,-apple-system,'Segoe UI',Roboto,'Helvetica Neue',Arial,sans-serif}
:root{--primary:#1a1a2e;--secondary:#16213e;--accent:#ff6b35;--accent2:#e85d2c;--light:#f8f9fa;--dark:#0f0f1a;--gray:#6c757d;--gray-light:#e9ecef;--white:#ffffff;--shadow:0 8px 32px rgba(0,0,0,0.12);--radius:16px;--glass:rgba(255,255,255,0.12);--glass-border:rgba(255,255,255,0.18);--bg-gradient:linear-gradient(135deg,#1a1a2e 0%,#16213e 50%,#0f3460 100%);--card-bg:#ffffff;--text:#1a1a2e;--text-light:#6c757d;--bg-section:#f4f6f9;--footer-bg:#0f0f1a}
[data-theme="dark"]{--primary:#0f0f1a;--secondary:#1a1a2e;--light:#1a1a2e;--dark:#f8f9fa;--white:#16213e;--text:#f8f9fa;--text-light:#b0b0b0;--card-bg:#1e2a3a;--bg-section:#12121e;--footer-bg:#080810;--shadow:0 8px 32px rgba(0,0,0,0.5);--glass:rgba(255,255,255,0.05);--glass-border:rgba(255,255,255,0.08)}
body{background:var(--bg-gradient);color:var(--text);line-height:1.7;overflow-x:hidden;transition:background 0.4s,color 0.4s}
a{color:var(--accent);text-decoration:none;transition:color 0.3s}
a:hover{color:var(--accent2)}
img{max-width:100%;height:auto;display:block}
.container{max-width:1200px;margin:0 auto;padding:0 24px}
.section{padding:80px 0;background:var(--bg-section);transition:background 0.4s}
.section-dark{background:var(--primary);color:var(--white)}
.section-dark .card{background:var(--glass);backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);border:1px solid var(--glass-border)}
.btn{display:inline-block;padding:14px 36px;border-radius:50px;font-weight:600;font-size:16px;cursor:pointer;border:none;transition:all 0.3s ease;position:relative;overflow:hidden}
.btn-primary{background:var(--accent);color:#fff;box-shadow:0 4px 20px rgba(255,107,53,0.4)}
.btn-primary:hover{transform:translateY(-3px);box-shadow:0 8px 30px rgba(255,107,53,0.5);background:var(--accent2)}
.btn-outline{background:transparent;border:2px solid var(--accent);color:var(--accent)}
.btn-outline:hover{background:var(--accent);color:#fff}
.section-title{text-align:center;margin-bottom:60px}
.section-title h2{font-size:36px;font-weight:800;margin-bottom:16px;background:linear-gradient(135deg,var(--accent),#ff9a44);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}
.section-title p{font-size:18px;color:var(--text-light);max-width:600px;margin:0 auto}
.card{background:var(--card-bg);border-radius:var(--radius);padding:32px;box-shadow:var(--shadow);transition:all 0.4s ease;border:1px solid transparent}
.card:hover{transform:translateY(-8px);box-shadow:0 16px 48px rgba(0,0,0,0.18);border-color:var(--accent)}
.glass{background:var(--glass);backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px);border:1px solid var(--glass-border);border-radius:var(--radius)}
.grid-2{display:grid;grid-template-columns:repeat(2,1fr);gap:32px}
.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:32px}
.grid-4{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.text-center{text-align:center}
.mt-16{margin-top:16px}
.mt-32{margin-top:32px}
.mb-16{margin-bottom:16px}
.mb-32{margin-bottom:32px}
header{position:fixed;top:0;left:0;right:0;z-index:1000;background:rgba(26,26,46,0.92);backdrop-filter:blur(20px);-webkit-backdrop-filter:blur(20px);border-bottom:1px solid rgba(255,255,255,0.08);transition:all 0.4s}
nav{display:flex;align-items:center;justify-content:space-between;padding:16px 24px;max-width:1200px;margin:0 auto}
.logo{display:flex;align-items:center;gap:12px;font-size:24px;font-weight:800;color:var(--white)}
.logo svg{width:40px;height:40px}
.nav-links{display:flex;gap:32px;list-style:none}
.nav-links a{color:rgba(255,255,255,0.85);font-weight:500;font-size:15px;padding:8px 0;position:relative;transition:color 0.3s}
.nav-links a::after{content:'';position:absolute;bottom:0;left:0;width:0;height:2px;background:var(--accent);transition:width 0.3s}
.nav-links a:hover{color:var(--accent)}
.nav-links a:hover::after{width:100%}
.nav-links a.active{color:var(--accent)}
.nav-links a.active::after{width:100%}
.theme-toggle{background:none;border:2px solid rgba(255,255,255,0.3);color:var(--white);width:44px;height:44px;border-radius:50%;cursor:pointer;display:flex;align-items:center;justify-content:center;font-size:20px;transition:all 0.3s}
.theme-toggle:hover{background:var(--accent);border-color:var(--accent)}
.mobile-menu-btn{display:none;background:none;border:none;color:var(--white);font-size:28px;cursor:pointer;padding:4px}
.hero{min-height:100vh;display:flex;align-items:center;position:relative;overflow:hidden;padding-top:80px}
.hero-slides{position:absolute;inset:0}
.hero-slide{position:absolute;inset:0;opacity:0;transition:opacity 1.2s ease;background-size:cover;background-position:center}
.hero-slide.active{opacity:1}
.hero-overlay{position:absolute;inset:0;background:linear-gradient(135deg,rgba(26,26,46,0.92) 0%,rgba(22,33,62,0.85) 50%,rgba(15,52,96,0.8) 100%)}
.hero-content{position:relative;z-index:2;max-width:720px;padding:40px 24px}
.hero-content h1{font-size:56px;font-weight:900;color:var(--white);line-height:1.15;margin-bottom:24px}
.hero-content h1 span{background:linear-gradient(135deg,var(--accent),#ff9a44);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}
.hero-content p{font-size:20px;color:rgba(255,255,255,0.85);margin-bottom:36px;line-height:1.8}
.hero-buttons{display:flex;gap:16px;flex-wrap:wrap}
.hero-dots{position:absolute;bottom:40px;left:50%;transform:translateX(-50%);display:flex;gap:12px;z-index:3}
.hero-dot{width:12px;height:12px;border-radius:50%;background:rgba(255,255,255,0.4);cursor:pointer;transition:all 0.3s;border:2px solid transparent}
.hero-dot.active{background:var(--accent);border-color:var(--accent);transform:scale(1.3)}
.scroll-hidden{opacity:0;transform:translateY(40px);transition:all 0.8s ease}
.scroll-visible{opacity:1;transform:translateY(0)}
.service-icon{width:64px;height:64px;border-radius:16px;display:flex;align-items:center;justify-content:center;font-size:32px;margin-bottom:16px;background:linear-gradient(135deg,var(--accent),#ff9a44);color:#fff}
.product-card .card{padding:24px;text-align:center}
.product-card h3{font-size:20px;margin:12px 0 8px}
.product-card p{color:var(--text-light);font-size:15px}
.team-img{width:120px;height:120px;border-radius:50%;object-fit:cover;margin:0 auto 16px;border:4px solid var(--accent);background:var(--gray-light)}
.team-card{text-align:center}
.team-card h4{font-size:20px;margin-bottom:4px}
.team-card p{color:var(--text-light);font-size:14px}
.stats-section{background:var(--primary);padding:80px 0;color:var(--white)}
.stat-item{text-align:center}
.stat-number{font-size:48px;font-weight:900;background:linear-gradient(135deg,var(--accent),#ff9a44);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}
.stat-label{font-size:16px;color:rgba(255,255,255,0.7);margin-top:8px}
.faq-item{border-bottom:1px solid var(--gray-light);padding:16px 0;cursor:pointer}
.faq-question{display:flex;justify-content:space-between;align-items:center;font-weight:600;font-size:18px;padding:8px 0}
.faq-question span{transition:transform 0.3s}
.faq-answer{max-height:0;overflow:hidden;transition:max-height 0.5s ease,opacity 0.3s;opacity:0;color:var(--text-light);line-height:1.8}
.faq-item.active .faq-answer{max-height:300px;opacity:1;padding:12px 0}
.faq-item.active .faq-question span{transform:rotate(45deg)}
footer{background:var(--footer-bg);color:rgba(255,255,255,0.8);padding:60px 0 30px}
.footer-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:40px;margin-bottom:40px}
footer h4{color:var(--white);font-size:18px;margin-bottom:20px;position:relative;padding-bottom:12px}
footer h4::after{content:'';position:absolute;bottom:0;left:0;width:40px;height:3px;background:var(--accent);border-radius:2px}
footer ul{list-style:none}
footer ul li{margin-bottom:10px}
footer ul li a{color:rgba(255,255,255,0.65);transition:color 0.3s;font-size:14px}
footer ul li a:hover{color:var(--accent)}
.footer-bottom{border-top:1px solid rgba(255,255,255,0.1);padding-top:24px;display:flex;justify-content:space-between;flex-wrap:wrap;gap:16px;font-size:14px;color:rgba(255,255,255,0.5)}
.breadcrumb{background:rgba(255,255,255,0.05);padding:12px 0;font-size:14px;color:rgba(255,255,255,0.6)}
.breadcrumb a{color:rgba(255,255,255,0.7)}
.breadcrumb span{margin:0 8px}
.back-to-top{position:fixed;bottom:40px;right:40px;width:52px;height:52px;border-radius:50%;background:var(--accent);color:#fff;border:none;cursor:pointer;font-size:24px;display:flex;align-items:center;justify-content:center;box-shadow:0 4px 20px rgba(255,107,53,0.4);opacity:0;transform:translateY(20px);transition:all 0.4s;z-index:999}
.back-to-top.visible{opacity:1;transform:translateY(0)}
.back-to-top:hover{transform:translateY(-4px);box-shadow:0 8px 30px rgba(255,107,53,0.5)}
.search-overlay{position:fixed;top:0;left:0;right:0;bottom:0;background:rgba(0,0,0,0.7);backdrop-filter:blur(8px);z-index:2000;display:none;align-items:center;justify-content:center}
.search-overlay.active{display:flex}
.search-box{background:var(--card-bg);border-radius:var(--radius);padding:32px;width:90%;max-width:600px;box-shadow:var(--shadow)}
.search-box input{width:100%;padding:16px 20px;border:2px solid var(--gray-light);border-radius:12px;font-size:18px;outline:none;transition:border-color 0.3s;background:var(--white);color:var(--text)}
.search-box input:focus{border-color:var(--accent)}
.search-results{margin-top:16px;max-height:300px;overflow-y:auto}
.search-result-item{padding:12px;border-bottom:1px solid var(--gray-light);cursor:pointer;transition:background 0.3s}
.search-result-item:hover{background:var(--gray-light)}
.search-close{position:absolute;top:24px;right:24px;background:var(--accent);color:#fff;border:none;width:44px;height:44px;border-radius:50%;font-size:24px;cursor:pointer}
@media(max-width:1024px){.grid-4{grid-template-columns:repeat(2,1fr)}.footer-grid{grid-template-columns:repeat(2,1fr)}}
@media(max-width:768px){.hero-content h1{font-size:36px}.hero-content p{font-size:18px}.grid-2,.grid-3,.grid-4{grid-template-columns:1fr}.nav-links{display:none;position:fixed;top:72px;left:0;right:0;background:var(--primary);flex-direction:column;padding:24px;gap:16px;border-bottom:1px solid rgba(255,255,255,0.1)}.nav-links.open{display:flex}.mobile-menu-btn{display:block}.section{padding:60px 0}.section-title h2{font-size:28px}.footer-grid{grid-template-columns:1fr}.back-to-top{bottom:24px;right:24px;width:44px;height:44px;font-size:20px}}
@media(max-width:480px){.hero-content h1{font-size:28px}.hero-content p{font-size:16px}.btn{padding:12px 28px;font-size:14px}}
[data-theme="dark"] .card{box-shadow:0 8px 32px rgba(0,0,0,0.5)}
[data-theme="dark"] .faq-item{border-color:rgba(255,255,255,0.1)}
[data-theme="dark"] .search-box input{background:var(--card-bg);color:var(--text);border-color:rgba(255,255,255,0.2)}
[data-theme="dark"] .search-result-item{border-color:rgba(255,255,255,0.1)}
[data-theme="dark"] .search-result-item:hover{background:rgba(255,255,255,0.05)}
[data-theme="dark"] .breadcrumb{background:rgba(0,0,0,0.3)}
a:focus-visible,button:focus-visible,input:focus-visible{outline:3px solid var(--accent);outline-offset:2px}
html{scroll-behavior:smooth}
#about,#brand,#culture,#team,#products,#advantages,#service,#solutions,#industries,#cases,#partners,#testimonials,#news,#articles,#faq,#howto,#contact,#sitemap{scroll-margin-top:80px}