/* style.css - 必威体育官方网站 */
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
:root{--primary:#1a1a2e;--secondary:#16213e;--accent:#0f3460;--gold:#ffd700;--gold-light:#ffe44d;--text:#e0e0e0;--text-dark:#1a1a2e;--bg:#0f0f1a;--card-bg:rgba(255,255,255,0.05);--glass:rgba(255,255,255,0.08);--shadow:0 8px 32px rgba(0,0,0,0.3);--radius:16px;--transition:0.3s cubic-bezier(0.4,0,0.2,1)}
[data-theme="light"]{--primary:#ffffff;--secondary:#f5f5f5;--accent:#e0e0e0;--text:#1a1a2e;--text-dark:#ffffff;--bg:#f8f9fa;--card-bg:rgba(0,0,0,0.03);--glass:rgba(255,255,255,0.7);--shadow:0 8px 32px rgba(0,0,0,0.1)}
body{font-family:-apple-system,BlinkMacSystemFont,'Segoe UI',Roboto,Oxygen,Ubuntu,Cantarell,sans-serif;background:var(--bg);color:var(--text);line-height:1.6;overflow-x:hidden;transition:background var(--transition),color var(--transition)}
a{color:var(--gold);text-decoration:none;transition:color var(--transition)}
a:hover{color:var(--gold-light)}
img,svg{max-width:100%;height:auto;display:block}
.container{max-width:1200px;margin:0 auto;padding:0 20px}
.section{padding:80px 0}
.section-title{font-size:2.5rem;font-weight:800;text-align:center;margin-bottom:16px;background:linear-gradient(135deg,var(--gold),var(--gold-light));-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}
.section-subtitle{text-align:center;font-size:1.1rem;color:var(--text);opacity:0.8;margin-bottom:48px;max-width:700px;margin-left:auto;margin-right:auto}
.btn{display:inline-block;padding:14px 36px;border-radius:50px;font-weight:700;font-size:1rem;border:none;cursor:pointer;transition:all var(--transition);background:linear-gradient(135deg,var(--gold),var(--gold-light));color:var(--text-dark);box-shadow:0 4px 20px rgba(255,215,0,0.3)}
.btn:hover{transform:translateY(-2px);box-shadow:0 8px 30px rgba(255,215,0,0.4)}
.btn-outline{background:transparent;border:2px solid var(--gold);color:var(--gold);box-shadow:none}
.btn-outline:hover{background:var(--gold);color:var(--text-dark)}
header{position:fixed;top:0;left:0;right:0;z-index:1000;background:rgba(15,15,26,0.9);backdrop-filter:blur(20px);-webkit-backdrop-filter:blur(20px);border-bottom:1px solid rgba(255,215,0,0.1);transition:background var(--transition)}
[data-theme="light"] header{background:rgba(255,255,255,0.9)}
.header-inner{display:flex;align-items:center;justify-content:space-between;padding:12px 20px;max-width:1200px;margin:0 auto}
.logo{display:flex;align-items:center;gap:10px;font-size:1.6rem;font-weight:900;color:var(--gold)}
.logo svg{width:40px;height:40px}
nav{display:flex;align-items:center;gap:24px}
nav a{color:var(--text);font-weight:500;font-size:0.95rem;padding:6px 0;position:relative;transition:color var(--transition)}
nav a::after{content:'';position:absolute;bottom:0;left:0;width:0;height:2px;background:var(--gold);transition:width var(--transition)}
nav a:hover::after,nav a.active::after{width:100%}
nav a:hover{color:var(--gold)}
.theme-toggle{background:none;border:none;color:var(--text);cursor:pointer;font-size:1.4rem;padding:4px;transition:color var(--transition)}
.theme-toggle:hover{color:var(--gold)}
.mobile-menu-btn{display:none;background:none;border:none;color:var(--gold);font-size:1.8rem;cursor:pointer}
.hero{min-height:100vh;display:flex;align-items:center;justify-content:center;position:relative;overflow:hidden;padding-top:80px;background:linear-gradient(135deg,var(--primary) 0%,var(--secondary) 50%,var(--accent) 100%)}
.hero::before{content:'';position:absolute;top:-50%;left:-50%;width:200%;height:200%;background:radial-gradient(circle at 30% 50%,rgba(255,215,0,0.08) 0%,transparent 60%),radial-gradient(circle at 70% 50%,rgba(255,215,0,0.05) 0%,transparent 60%);animation:heroGlow 15s ease-in-out infinite alternate}
@keyframes heroGlow{0%{transform:translate(0,0)}100%{transform:translate(-5%,-5%)}}
.hero-content{position:relative;z-index:2;text-align:center;max-width:900px;padding:0 20px}
.hero h1{font-size:4rem;font-weight:900;line-height:1.1;margin-bottom:24px;background:linear-gradient(135deg,#fff 30%,var(--gold) 70%,var(--gold-light) 100%);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}
.hero p{font-size:1.25rem;margin-bottom:40px;opacity:0.9;max-width:700px;margin-left:auto;margin-right:auto}
.hero-buttons{display:flex;gap:16px;justify-content:center;flex-wrap:wrap}
.hero-stats{display:flex;gap:48px;justify-content:center;margin-top:60px;flex-wrap:wrap}
.hero-stat{text-align:center}
.hero-stat .number{font-size:2.8rem;font-weight:900;color:var(--gold);display:block}
.hero-stat .label{font-size:0.95rem;opacity:0.7;margin-top:4px}
.banner-carousel{position:relative;overflow:hidden;border-radius:var(--radius);margin:40px 0}
.banner-slide{display:none;padding:60px 40px;background:var(--glass);backdrop-filter:blur(12px);border-radius:var(--radius);border:1px solid rgba(255,215,0,0.15);text-align:center;min-height:280px;align-items:center;justify-content:center;flex-direction:column}
.banner-slide.active{display:flex}
.banner-slide h3{font-size:2rem;margin-bottom:16px;color:var(--gold)}
.banner-slide p{max-width:600px;opacity:0.8;font-size:1.1rem}
.banner-dots{display:flex;justify-content:center;gap:10px;margin-top:20px}
.banner-dots span{width:12px;height:12px;border-radius:50%;background:rgba(255,215,0,0.3);cursor:pointer;transition:all var(--transition)}
.banner-dots span.active{background:var(--gold);transform:scale(1.2)}
.grid{display:grid;gap:24px}
.grid-2{grid-template-columns:repeat(2,1fr)}
.grid-3{grid-template-columns:repeat(3,1fr)}
.grid-4{grid-template-columns:repeat(4,1fr)}
.card{background:var(--card-bg);backdrop-filter:blur(12px);border-radius:var(--radius);padding:32px;border:1px solid rgba(255,215,0,0.08);transition:all var(--transition);position:relative;overflow:hidden}
.card:hover{transform:translateY(-8px);box-shadow:0 20px 60px rgba(0,0,0,0.3);border-color:rgba(255,215,0,0.2)}
.card-icon{margin-bottom:20px;width:56px;height:56px;color:var(--gold)}
.card h3{font-size:1.4rem;margin-bottom:12px;color:var(--gold)}
.card p{opacity:0.8;font-size:0.95rem}
.about-grid{display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:center}
.about-text h2{font-size:2.2rem;margin-bottom:20px}
.about-text p{margin-bottom:16px;opacity:0.85}
.about-image{background:var(--glass);border-radius:var(--radius);padding:40px;display:flex;align-items:center;justify-content:center;min-height:350px;border:1px solid rgba(255,215,0,0.1)}
.timeline{position:relative;padding-left:40px}
.timeline::before{content:'';position:absolute;left:12px;top:0;bottom:0;width:2px;background:linear-gradient(to bottom,var(--gold),transparent)}
.timeline-item{position:relative;margin-bottom:40px;padding-left:20px}
.timeline-item::before{content:'';position:absolute;left:-32px;top:8px;width:16px;height:16px;border-radius:50%;background:var(--gold);border:3px solid var(--bg)}
.timeline-item .year{font-weight:900;color:var(--gold);font-size:1.2rem;display:block;margin-bottom:4px}
.timeline-item h4{font-size:1.1rem;margin-bottom:6px}
.timeline-item p{opacity:0.7;font-size:0.9rem}
.team-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:24px}
.team-card{text-align:center;padding:32px 20px}
.team-card .avatar{width:100px;height:100px;border-radius:50%;margin:0 auto 16px;background:linear-gradient(135deg,var(--gold),var(--gold-light));display:flex;align-items:center;justify-content:center;font-size:2.5rem;color:var(--text-dark);font-weight:900}
.team-card h4{font-size:1.2rem;margin-bottom:4px}
.team-card .role{color:var(--gold);font-size:0.9rem;margin-bottom:12px;display:block}
.team-card p{opacity:0.7;font-size:0.9rem}
.products-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:24px}
.product-card{padding:0;overflow:hidden}
.product-card .product-img{height:200px;background:var(--glass);display:flex;align-items:center;justify-content:center;border-bottom:1px solid rgba(255,215,0,0.08)}
.product-card .product-body{padding:24px}
.product-card .product-body h3{font-size:1.3rem;margin-bottom:8px}
.product-card .product-body p{opacity:0.75;font-size:0.9rem;margin-bottom:16px}
.product-card .product-body .tag{display:inline-block;padding:4px 12px;border-radius:20px;background:rgba(255,215,0,0.15);color:var(--gold);font-size:0.8rem;font-weight:600}
.cases-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:24px}
.case-card{text-align:center}
.case-card .case-img{height:180px;background:var(--glass);border-radius:12px;display:flex;align-items:center;justify-content:center;margin-bottom:16px}
.case-card h4{font-size:1.1rem;margin-bottom:8px}
.case-card p{opacity:0.7;font-size:0.9rem}
.testimonials-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(300px,1fr));gap:24px}
.testimonial-card{position:relative}
.testimonial-card::before{content:'"';position:absolute;top:16px;left:24px;font-size:4rem;color:var(--gold);opacity:0.2;font-family:Georgia,serif;line-height:1}
.testimonial-card p{font-style:italic;opacity:0.85;margin-bottom:20px;padding-top:20px}
.testimonial-card .author{display:flex;align-items:center;gap:12px}
.testimonial-card .author .avatar{width:44px;height:44px;border-radius:50%;background:var(--glass);display:flex;align-items:center;justify-content:center;font-weight:700;color:var(--gold)}
.testimonial-card .author .name{font-weight:600}
.testimonial-card .author .title{font-size:0.8rem;opacity:0.6}
.faq-item{border-bottom:1px solid rgba(255,215,0,0.1);padding:20px 0;cursor:pointer}
.faq-item:first-child{border-top:1px solid rgba(255,215,0,0.1)}
.faq-question{display:flex;justify-content:space-between;align-items:center;font-weight:600;font-size:1.05rem;gap:16px}
.faq-question .icon{font-size:1.4rem;transition:transform var(--transition);flex-shrink:0}
.faq-item.active .faq-question .icon{transform:rotate(45deg)}
.faq-answer{max-height:0;overflow:hidden;transition:max-height 0.4s ease,opacity 0.3s ease;opacity:0;padding-top:0}
.faq-item.active .faq-answer{max-height:600px;opacity:1;padding-top:16px}
.faq-answer p{opacity:0.8;font-size:0.95rem}
.howto-steps{display:grid;gap:16px;counter-reset:step}
.howto-step{background:var(--card-bg);border-radius:var(--radius);padding:24px;border:1px solid rgba(255,215,0,0.08);position:relative;padding-left:64px}
.howto-step::before{counter-increment:step;content:counter(step);position:absolute;left:20px;top:20px;width:32px;height:32px;border-radius:50%;background:var(--gold);color:var(--text-dark);display:flex;align-items:center;justify-content:center;font-weight:900;font-size:1rem}
.howto-step h4{font-size:1.1rem;margin-bottom:6px;color:var(--gold)}
.howto-step p{opacity:0.75;font-size:0.9rem}
.news-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(300px,1fr));gap:24px}
.news-card{overflow:hidden}
.news-card .news-img{height:180px;background:var(--glass);display:flex;align-items:center;justify-content:center;border-bottom:1px solid rgba(255,215,0,0.08)}
.news-card .news-body{padding:24px}
.news-card .news-body .date{font-size:0.8rem;opacity:0.5;display:block;margin-bottom:8px}
.news-card .news-body h3{font-size:1.15rem;margin-bottom:8px}
.news-card .news-body p{opacity:0.7;font-size:0.9rem;margin-bottom:16px}
.news-card .news-body .read-more{color:var(--gold);font-weight:600;font-size:0.9rem}
.contact-grid{display:grid;grid-template-columns:1fr 1fr;gap:48px}
.contact-info h3{font-size:1.5rem;margin-bottom:20px}
.contact-info .info-item{display:flex;align-items:center;gap:12px;margin-bottom:16px;font-size:0.95rem}
.contact-info .info-item svg{width:24px;height:24px;flex-shrink:0;color:var(--gold)}
.contact-form{background:var(--card-bg);border-radius:var(--radius);padding:32px;border:1px solid rgba(255,215,0,0.08)}
.contact-form input,.contact-form textarea{width:100%;padding:14px 16px;border-radius:12px;border:1px solid rgba(255,215,0,0.15);background:rgba(255,255,255,0.05);color:var(--text);font-size:1rem;margin-bottom:16px;transition:border var(--transition)}
.contact-form input:focus,.contact-form textarea:focus{outline:none;border-color:var(--gold)}
.contact-form textarea{min-height:120px;resize:vertical}
.contact-form button{width:100%}
footer{background:var(--primary);border-top:1px solid rgba(255,215,0,0.1);padding:60px 0 20px}
.footer-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:40px;margin-bottom:40px}
.footer-col h4{font-size:1.1rem;margin-bottom:16px;color:var(--gold)}
.footer-col a{display:block;padding:4px 0;font-size:0.9rem;opacity:0.7;transition:opacity var(--transition)}
.footer-col a:hover{opacity:1}
.footer-col p{font-size:0.9rem;opacity:0.7;line-height:1.8}
.footer-qr{display:flex;gap:16px;margin-top:12px}
.footer-qr svg{width:100px;height:100px;border-radius:8px;background:#fff;padding:8px}
.footer-bottom{border-top:1px solid rgba(255,215,0,0.08);padding-top:20px;display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:12px;font-size:0.85rem;opacity:0.6}
.footer-bottom a{margin:0 8px}
.back-to-top{position:fixed;bottom:30px;right:30px;width:50px;height:50px;border-radius:50%;background:var(--gold);color:var(--text-dark);border:none;cursor:pointer;font-size:1.4rem;box-shadow:0 4px 20px rgba(255,215,0,0.3);opacity:0;visibility:hidden;transition:all var(--transition);z-index:999;display:flex;align-items:center;justify-content:center}
.back-to-top.visible{opacity:1;visibility:visible}
.back-to-top:hover{transform:translateY(-4px)}
.search-modal{position:fixed;top:0;left:0;right:0;bottom:0;background:rgba(0,0,0,0.8);backdrop-filter:blur(10px);z-index:2000;display:none;align-items:center;justify-content:center;padding:20px}
.search-modal.active{display:flex}
.search-modal .search-box{width:100%;max-width:600px;background:var(--card-bg);border-radius:var(--radius);padding:32px;border:1px solid rgba(255,215,0,0.15)}
.search-modal input{width:100%;padding:16px 20px;border-radius:12px;border:1px solid rgba(255,215,0,0.2);background:rgba(255,255,255,0.05);color:var(--text);font-size:1.1rem}
.search-modal input:focus{outline:none;border-color:var(--gold)}
.search-modal .search-results{margin-top:20px;max-height:400px;overflow-y:auto}
.search-modal .search-results .result-item{padding:12px 0;border-bottom:1px solid rgba(255,215,0,0.08);cursor:pointer}
.search-modal .search-results .result-item:hover{opacity:0.8}
.search-modal .close-search{position:absolute;top:20px;right:30px;font-size:2rem;color:var(--text);cursor:pointer;background:none;border:none}
@media (max-width:1024px){.about-grid{grid-template-columns:1fr}.contact-grid{grid-template-columns:1fr}.hero h1{font-size:3rem}}
@media (max-width:768px){.grid-2,.grid-3,.grid-4{grid-template-columns:1fr}.mobile-menu-btn{display:block}nav{position:fixed;top:80px;left:0;right:0;background:rgba(15,15,26,0.98);backdrop-filter:blur(20px);flex-direction:column;padding:24px;gap:16px;transform:translateY(-120%);transition:transform var(--transition);border-bottom:1px solid rgba(255,215,0,0.1)}nav.active{transform:translateY(0)}[data-theme="light"] nav{background:rgba(255,255,255,0.98)}.hero h1{font-size:2.4rem}.hero p{font-size:1rem}.hero-stats{gap:24px}.hero-stat .number{font-size:2rem}.section{padding:50px 0}.section-title{font-size:2rem}.banner-slide{padding:40px 20px;min-height:200px}.banner-slide h3{font-size:1.4rem}.footer-grid{grid-template-columns:1fr 1fr}.footer-bottom{flex-direction:column;text-align:center}}
@media (max-width:480px){.hero h1{font-size:1.8rem}.hero-stats{gap:16px}.hero-stat .number{font-size:1.6rem}.section-title{font-size:1.6rem}.footer-grid{grid-template-columns:1fr}}
.scroll-reveal{opacity:0;transform:translateY(30px);transition:opacity 0.6s ease,transform 0.6s ease}
.scroll-reveal.revealed{opacity:1;transform:translateY(0)}