/* 网站100 - 旋转立方体布局 主题：蓝紫渐变风 */
:root{--primary:#6c5ce7;--primary-light:#a29bfe;--primary-dark:#4834d4;--accent:#00cec9;--bg:#f5f6ff;--bg-card:#fff;--text:#2d3436;--text-light:#636e72;--border:#dfe6e9;--shadow:0 4px 20px rgba(108,92,231,0.15);--shadow-hover:0 15px 50px rgba(108,92,231,0.25)}
*{margin:0;padding:0;box-sizing:border-box}
body{font-family:-apple-system,BlinkMacSystemFont,'Segoe UI',PingFang SC,Microsoft YaHei,sans-serif;background:var(--bg);color:var(--text);line-height:1.6}
a{text-decoration:none;color:inherit}
/* 导航 */
.nav-top{background:linear-gradient(135deg,var(--primary) 0%,var(--primary-light) 100%);padding:18px 50px;display:flex;justify-content:space-between;align-items:center}
.logo-area h1{color:#fff;font-size:20px}
.logo-area p{color:rgba(255,255,255,0.85);font-size:11px}
.nav-menu{display:flex;gap:8px;list-style:none}
.nav-menu a{display:block;padding:10px 22px;color:#fff;border-radius:25px;font-size:14px;transition:all .3s}
.nav-menu a:hover,.nav-menu a.active{background:rgba(255,255,255,0.2)}
/* 旋转立方体横幅 */
.cube-banner{height:90vh;display:flex;align-items:center;justify-content:center;background:linear-gradient(135deg,var(--primary-dark) 0%,var(--primary) 50%,var(--primary-light) 100%);position:relative;overflow:hidden}
.cube-banner::before{content:'';position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);width:300px;height:300px;background:rgba(255,255,255,0.1);border-radius:20px;animation:rotateCube 20s linear infinite}
.cube-banner::after{content:'';position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);width:200px;height:200px;background:rgba(255,255,255,0.1);border-radius:20px;animation:rotateCube 15s linear infinite reverse}
@keyframes rotateCube{from{transform:translate(-50%,-50%) rotate(0deg)}to{transform:translate(-50%,-50%) rotate(360deg)}}
.banner-text{position:relative;z-index:2;text-align:center;max-width:800px;padding:20px}
.banner-text h2{font-size:44px;color:#fff;margin-bottom:18px}
.banner-text p{font-size:17px;color:rgba(255,255,255,0.9);margin-bottom:32px}
.btn-banner{display:inline-block;padding:14px 40px;background:#fff;color:var(--primary);border-radius:30px;font-weight:600;transition:all .3s}
.btn-banner:hover{transform:translateY(-3px);box-shadow:0 10px 25px rgba(0,0,0,0.2)}
/* 内容区 */
.section-block{padding:80px 50px}
.section-block:nth-child(even){background:var(--bg-card)}
.section-title{text-align:center;margin-bottom:50px}
.section-title h3{font-size:32px;color:var(--text);margin-bottom:12px}
.section-title p{font-size:16px;color:var(--text-light)}
/* 卡片网格 */
.cube-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:25px;max-width:1400px;margin:0 auto}
.cube-card{background:#fff;border-radius:16px;padding:35px;border:1px solid var(--border);transition:all .4s}
.cube-card:hover{transform:translateY(-10px);box-shadow:var(--shadow-hover);border-color:var(--primary)}
.card-badge{width:50px;height:50px;background:linear-gradient(135deg,var(--primary),var(--primary-light));border-radius:12px;display:flex;align-items:center;justify-content:center;font-size:22px;margin-bottom:16px}
.cube-card h4{font-size:19px;color:var(--text);margin-bottom:10px}
.cube-card p{font-size:14px;color:var(--text-light);line-height:1.7}
/* 价格 */
.pricing-tier{display:grid;grid-template-columns:repeat(3,1fr);gap:25px;max-width:1200px;margin:0 auto}
.pricing-item{background:#fff;border-radius:18px;padding:42px 30px;text-align:center;border:2px solid var(--border);transition:all .3s}
.pricing-item:hover{border-color:var(--primary)}
.pricing-item.featured{border-color:var(--primary);transform:scale(1.05);box-shadow:var(--shadow-hover)}
.pricing-item h4{font-size:21px;color:var(--text);margin-bottom:10px}
.pricing-cost{font-size:42px;font-weight:700;color:var(--primary)}
.pricing-cost span{font-size:16px;color:var(--text-light)}
.pricing-features{list-style:none;margin:25px 0}
.pricing-features li{padding:10px 0;border-bottom:1px solid var(--border);font-size:14px;color:var(--text-light)}
.btn-buy{display:inline-block;padding:12px 35px;background:var(--primary);color:#fff;border-radius:25px;font-weight:600}
/* CTA */
.call-action{background:linear-gradient(135deg,var(--primary-dark) 0%,var(--primary) 100%);padding:80px 50px;text-align:center}
.call-action h3{font-size:34px;color:#fff;margin-bottom:14px}
.call-action p{font-size:16px;color:rgba(255,255,255,0.9);margin-bottom:30px}
/* 页脚 */
.site-footer{background:var(--text);padding:55px 50px 25px}
.footer-area{display:grid;grid-template-columns:2fr 1fr 1fr;gap:40px;margin-bottom:35px}
.site-footer h4{color:#fff;font-size:18px;margin-bottom:15px}
.site-footer p,.site-footer a{color:rgba(255,255,255,0.6);font-size:14px}
.site-footer a:hover{color:#fff}
.site-footer ul{list-style:none}
.site-footer li{margin-bottom:10px}
.footer-copy{padding-top:25px;border-top:1px solid rgba(255,255,255,0.1);text-align:center;color:rgba(255,255,255,0.4);font-size:14px}
@media(max-width:992px){.nav-menu{display:none}.cube-grid,.pricing-tier{grid-template-columns:repeat(2,1fr)}}
@media(max-width:768px){.nav-top{flex-direction:column;gap:15px;padding:15px 20px}.cube-banner{height:70vh}.banner-text h2{font-size:28px}.section-block,.call-action,.site-footer{padding:50px 20px}.cube-grid,.pricing-tier{grid-template-columns:1fr}.pricing-item.featured{transform:none}}