/* style.css - 皇冠体育官方网站 CROWN SPORTS */
/* 全局重置与基础 */
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}html{scroll-behavior:smooth;font-size:16px}body{font-family:-apple-system,BlinkMacSystemFont,'Segoe UI',Roboto,'Helvetica Neue',Arial,sans-serif;background:#0f0f1a;color:#e0e0e0;line-height:1.6;min-height:100vh}.container{max-width:1200px;margin:0 auto;padding:0 20px}.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);border:0}
/* 导航 */
#site-header{position:sticky;top:0;z-index:1000;background:rgba(15,15,26,0.85);backdrop-filter:blur(20px);-webkit-backdrop-filter:blur(20px);border-bottom:1px solid rgba(240,192,64,0.15);transition:background 0.3s}.nav-container{display:flex;align-items:center;justify-content:space-between;padding:0 24px;height:70px;max-width:1200px;margin:0 auto}.logo{display:flex;align-items:center;text-decoration:none}.nav-toggle{display:none;background:none;border:none;cursor:pointer;padding:8px}.nav-toggle span{display:block;width:24px;height:2px;background:#e0e0e0;margin:5px 0;transition:0.3s}.nav-links{display:flex;list-style:none;gap:8px}.nav-links a{color:#c0c0d0;text-decoration:none;padding:8px 16px;border-radius:8px;font-size:0.95rem;transition:color 0.3s,background 0.3s}.nav-links a:hover,.nav-links a[aria-current]{color:#f0c040;background:rgba(240,192,64,0.1)}.nav-actions{display:flex;align-items:center;gap:10px}.nav-actions button{background:none;border:none;cursor:pointer;padding:8px;border-radius:8px;transition:background 0.3s;display:flex;align-items:center}.nav-actions button:hover{background:rgba(240,192,64,0.1)}.btn-register,.btn-login{padding:8px 20px;border-radius:8px;text-decoration:none;font-size:0.9rem;font-weight:600;transition:all 0.3s}.btn-register{background:#f0c040;color:#1a1a2e}.btn-register:hover{background:#e0b030;transform:translateY(-1px)}.btn-login{background:rgba(240,192,64,0.15);color:#f0c040;border:1px solid rgba(240,192,64,0.3)}.btn-login:hover{background:rgba(240,192,64,0.25)}
/* Hero 区域 - 渐变Banner */
.hero{position:relative;overflow:hidden;min-height:85vh;display:flex;align-items:center;justify-content:center;text-align:center;padding:120px 20px 80px;background:linear-gradient(135deg,#0f0f1a 0%,#1a1a2e 50%,#0f0f1a 100%)}.hero-slider{position:relative;width:100%;max-width:900px}.slide{display:none;opacity:0;transition:opacity 0.8s ease}.slide.active{display:block;opacity:1}.hero-content h1,.hero-content h2{font-size:clamp(2rem,5vw,3.5rem);font-weight:800;color:#ffffff;margin-bottom:16px;line-height:1.2}.highlight{color:#f0c040}.hero-subtitle{font-size:clamp(1rem,2vw,1.3rem);color:#c0c0d0;margin-bottom:12px}.hero-desc{font-size:clamp(0.9rem,1.5vw,1.1rem);color:#8888a0;margin-bottom:32px;max-width:600px;margin-left:auto;margin-right:auto}.hero-actions{display:flex;gap:16px;justify-content:center;flex-wrap:wrap}.btn-primary,.btn-secondary{padding:14px 36px;border-radius:12px;text-decoration:none;font-size:1.05rem;font-weight:700;transition:all 0.3s;display:inline-block}.btn-primary{background:#f0c040;color:#1a1a2e;box-shadow:0 4px 15px rgba(240,192,64,0.3)}.btn-primary:hover{transform:translateY(-2px);box-shadow:0 6px 20px rgba(240,192,64,0.4)}.btn-secondary{background:rgba(255,255,255,0.08);color:#e0e0e0;border:1px solid rgba(255,255,255,0.15)}.btn-secondary:hover{background:rgba(255,255,255,0.15)}.slider-controls{position:absolute;bottom:40px;left:50%;transform:translateX(-50%);display:flex;align-items:center;gap:20px;z-index:10}.slider-controls button{background:rgba(255,255,255,0.1);border:none;border-radius:50%;width:44px;height:44px;cursor:pointer;display:flex;align-items:center;justify-content:center;transition:background 0.3s;backdrop-filter:blur(4px)}.slider-controls button:hover{background:rgba(255,255,255,0.2)}.slider-dots{display:flex;gap:8px}.slider-dots span{width:10px;height:10px;border-radius:50%;background:rgba(255,255,255,0.3);cursor:pointer;transition:all 0.3s}.slider-dots span.active{background:#f0c040;width:28px;border-radius:5px}
/* 通用区块 */
.section{padding:80px 0}.section-header{text-align:center;margin-bottom:56px}.section-header h2{font-size:clamp(1.8rem,3.5vw,2.8rem);font-weight:800;color:#ffffff;margin-bottom:12px}.section-header .section-desc{font-size:1.1rem;color:#8888a0;max-width:600px;margin:0 auto}
/* About - 圆角卡片 + 毛玻璃效果 */
.about-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(260px,1fr));gap:28px}.about-card{background:rgba(255,255,255,0.04);border:1px solid rgba(255,255,255,0.06);border-radius:20px;padding:32px 24px;backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px);transition:transform 0.3s,box-shadow 0.3s}.about-card:hover{transform:translateY(-4px);box-shadow:0 8px 30px rgba(240,192,64,0.08)}.about-card svg{margin-bottom:16px}.about-card h3{font-size:1.3rem;color:#f0c040;margin-bottom:12px}.about-card p{color:#b0b0c0;font-size:0.95rem;line-height:1.7}
/* Products */
.products-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(300px,1fr));gap:28px}.product-card{background:rgba(255,255,255,0.04);border:1px solid rgba(255,255,255,0.06);border-radius:20px;padding:32px 24px;text-align:center;backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px);transition:transform 0.3s,box-shadow 0.3s}.product-card:hover{transform:translateY(-4px);box-shadow:0 8px 30px rgba(240,192,64,0.08)}.product-icon{margin-bottom:16px}.product-card h3{font-size:1.3rem;color:#f0c040;margin-bottom:12px}.product-card p{color:#b0b0c0;font-size:0.95rem;line-height:1.7}
/* Features */
.features{background:linear-gradient(135deg,#1a1a2e 0%,#0f0f1a 100%)}.features-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:28px;text-align:center}.feature-item{padding:24px}.feature-number{font-size:3rem;font-weight:800;color:#f0c040;margin-bottom:8px;font-variant-numeric:tabular-nums}.feature-item h3{font-size:1.1rem;color:#ffffff;margin-bottom:8px}.feature-item p{color:#8888a0;font-size:0.9rem}
/* Testimonials */
.testimonials-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:28px}.testimonial-card{background:rgba(255,255,255,0.04);border:1px solid rgba(255,255,255,0.06);border-radius:20px;padding:32px 24px;position:relative;backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px);transition:transform 0.3s,box-shadow 0.3s}.testimonial-card:hover{transform:translateY(-4px);box-shadow:0 8px 30px rgba(240,192,64,0.08)}.testimonial-card p{color:#c0c0d0;font-style:italic;font-size:1rem;line-height:1.7;margin-bottom:16px}.testimonial-card cite{color:#f0c040;font-style:normal;font-weight:600}
/* FAQ */
.faq-list{max-width:800px;margin:0 auto;display:flex;flex-direction:column;gap:12px}.faq-item{background:rgba(255,255,255,0.04);border:1px solid rgba(255,255,255,0.06);border-radius:16px;overflow:hidden;backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px);transition:box-shadow 0.3s}.faq-item[open]{box-shadow:0 4px 20px rgba(240,192,64,0.06)}.faq-item summary{display:flex;align-items:center;justify-content:space-between;padding:20px 24px;font-size:1.05rem;font-weight:600;color:#e0e0e0;cursor:pointer;list-style:none;transition:color 0.3s}.faq-item summary::-webkit-details-marker{display:none}.faq-item summary:hover{color:#f0c040}.faq-icon{transition:transform 0.3s}.faq-item[open] .faq-icon{transform:rotate(180deg)}.faq-answer{padding:0 24px 20px;color:#b0b0c0;line-height:1.7}
/* Contact */
.contact-grid{display:grid;grid-template-columns:1fr 1fr;gap:40px;align-items:start}@media(max-width:768px){.contact-grid{grid-template-columns:1fr}}.contact-info{display:flex;flex-direction:column;gap:20px}.contact-item{display:flex;align-items:center;gap:12px;color:#c0c0d0;font-size:1rem}.contact-item svg{flex-shrink:0}.contact-form{background:rgba(255,255,255,0.04);border:1px solid rgba(255,255,255,0.06);border-radius:20px;padding:32px;backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px);display:flex;flex-direction:column;gap:16px}.contact-form label{font-size:0.9rem;color:#a0a0b0;font-weight:600}.contact-form input,.contact-form textarea{background:rgba(255,255,255,0.06);border:1px solid rgba(255,255,255,0.1);border-radius:12px;padding:14px 16px;color:#e0e0e0;font-size:1rem;transition:border-color 0.3s;outline:none}.contact-form input:focus,.contact-form textarea:focus{border-color:#f0c040}.contact-form textarea{resize:vertical;min-height:100px}.contact-form button{align-self:flex-start}
/* 页脚 */
#site-footer{background:#0a0a14;border-top:1px solid rgba(255,255,255,0.05);padding:60px 0 30px}.footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr 1fr;gap:40px;margin-bottom:40px}@media(max-width:768px){.footer-grid{grid-template-columns:1fr 1fr;gap:30px}}@media(max-width:480px){.footer-grid{grid-template-columns:1fr}}.footer-brand p{color:#8888a0;font-size:0.9rem;margin-top:16px;line-height:1.7}.footer-links h4,.footer-contact h4{color:#f0c040;font-size:1rem;margin-bottom:16px;font-weight:700}.footer-links ul{list-style:none}.footer-links li{margin-bottom:10px}.footer-links a{color:#8888a0;text-decoration:none;font-size:0.9rem;transition:color 0.3s}.footer-links a:hover{color:#f0c040}.footer-contact p{color:#8888a0;font-size:0.9rem;margin-bottom:8px}.footer-bottom{text-align:center;padding-top:30px;border-top:1px solid rgba(255,255,255,0.05)}.footer-bottom p{color:#666680;font-size:0.85rem;margin-bottom:6px}
/* Back to top */
.back-to-top{position:fixed;bottom:30px;right:30px;width:50px;height:50px;border-radius:50%;background:#f0c040;display:flex;align-items:center;justify-content:center;cursor:pointer;opacity:0;visibility:hidden;transition:all 0.3s;z-index:999;box-shadow:0 4px 15px rgba(240,192,64,0.3)}.back-to-top.visible{opacity:1;visibility:visible}.back-to-top:hover{transform:translateY(-3px);box-shadow:0 6px 20px rgba(240,192,64,0.4)}
/* Search overlay */
.search-overlay{position:fixed;top:0;left:0;width:100%;height:100%;background:rgba(15,15,26,0.95);backdrop-filter:blur(20px);-webkit-backdrop-filter:blur(20px);z-index:2000;display:none;align-items:center;justify-content:center;padding:20px}.search-overlay.open{display:flex}.search-container{width:100%;max-width:600px;position:relative}.search-container form{display:flex;gap:12px}.search-container input{flex:1;background:rgba(255,255,255,0.08);border:1px solid rgba(255,255,255,0.15);border-radius:16px;padding:18px 24px;font-size:1.2rem;color:#ffffff;outline:none;transition:border-color 0.3s}.search-container input:focus{border-color:#f0c040}.search-container button{background:#f0c040;border:none;border-radius:16px;padding:12px 24px;cursor:pointer;display:flex;align-items:center;justify-content:center;transition:background 0.3s}.search-container button:hover{background:#e0b030}.search-close{position:absolute;top:-60px;right:0;background:none;border:none;cursor:pointer;padding:8px}
/* 暗色模式变量 */
body.dark{--bg:#0f0f1a;--text:#e0e0e0;--card-bg:rgba(255,255,255,0.04);--border:rgba(255,255,255,0.06)}body:not(.dark){--bg:#f5f5f5;--text:#1a1a2e;--card-bg:rgba(0,0,0,0.03);--border:rgba(0,0,0,0.08)}body:not(.dark) #site-header{background:rgba(245,245,245,0.9);border-bottom-color:rgba(0,0,0,0.08)}body:not(.dark) .nav-links a{color:#333}body:not(.dark) .nav-links a:hover{color:#f0c040}body:not(.dark) .hero{background:linear-gradient(135deg,#f5f5f5 0%,#e8e8f0 50%,#f5f5f5 100%)}body:not(.dark) .hero-content h1,body:not(.dark) .hero-content h2{color:#1a1a2e}body:not(.dark) .hero-subtitle{color:#555}body:not(.dark) .hero-desc{color:#777}body:not(.dark) .section-header h2{color:#1a1a2e}body:not(.dark) .about-card,body:not(.dark) .product-card,body:not(.dark) .testimonial-card,body:not(.dark) .faq-item,body:not(.dark) .contact-form{background:rgba(255,255,255,0.8);border-color:rgba(0,0,0,0.08)}body:not(.dark) .about-card p,body:not(.dark) .product-card p,body:not(.dark) .testimonial-card p,body:not(.dark) .faq-answer,body:not(.dark) .contact-item{color:#444}body:not(.dark) .features{background:linear-gradient(135deg,#e8e8f0 0%,#f5f5f5 100%)}body:not(.dark) .feature-item h3{color:#1a1a2e}body:not(.dark) #site-footer{background:#e0e0e8;border-top-color:rgba(0,0,0,0.08)}body:not(.dark) .footer-brand p,body:not(.dark) .footer-links a,body:not(.dark) .footer-contact p{color:#555}body:not(.dark) .footer-bottom p{color:#777}body:not(.dark) .btn-secondary{background:rgba(0,0,0,0.06);color:#1a1a2e;border-color:rgba(0,0,0,0.15)}body:not(.dark) .btn-secondary:hover{background:rgba(0,0,0,0.1)}body:not(.dark) .contact-form input,body:not(.dark) .contact-form textarea{background:rgba(0,0,0,0.04);border-color:rgba(0,0,0,0.12);color:#1a1a2e}body:not(.dark) .search-overlay{background:rgba(245,245,245,0.95)}body:not(.dark) .search-container input{background:rgba(0,0,0,0.06);border-color:rgba(0,0,0,0.15);color:#1a1a2e}body:not(.dark) .faq-item summary{color:#1a1a2e}body:not(.dark) .faq-item summary:hover{color:#f0c040}
/* 响应式布局 */
@media(max-width:768px){.nav-links{display:none;position:absolute;top:70px;left:0;right:0;background:rgba(15,15,26,0.95);backdrop-filter:blur(20px);-webkit-backdrop-filter:blur(20px);flex-direction:column;padding:16px;gap:4px;border-bottom:1px solid rgba(255,255,255,0.1)}.nav-links.open{display:flex}.nav-toggle{display:block}.nav-actions .btn-register,.nav-actions .btn-login{display:none}.hero{min-height:70vh;padding:100px 20px 60px}.section{padding:60px 0}.section-header{margin-bottom:40px}.about-grid,.products-grid,.features-grid,.testimonials-grid{grid-template-columns:1fr}.footer-grid{grid-template-columns:1fr 1fr;gap:24px}}@media(max-width:480px){.hero-content h1,.hero-content h2{font-size:1.8rem}.hero-actions{flex-direction:column;align-items:center}.btn-primary,.btn-secondary{width:100%;text-align:center}.slider-controls{bottom:20px}.footer-grid{grid-template-columns:1fr}}
/* 滚动动画 */
@keyframes fadeInUp{from{opacity:0;transform:translateY(30px)}to{opacity:1;transform:translateY(0)}}.section{animation:fadeInUp 0.6s ease-out both}@media(prefers-reduced-motion:reduce){.section{animation:none}}.reveal{opacity:0;transform:translateY(30px);transition:opacity 0.6s ease,transform 0.6s ease}.reveal.visible{opacity:1;transform:translateY(0)}