:root{--primary-color: #e61f1a;--dark-bg: #2a2a2a;--text-color: #333;--text-light: #999;--border-color: #eee}*{margin:0;padding:0;box-sizing:border-box}body{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,PingFang SC,Microsoft YaHei,sans-serif;color:var(--text-color);background:#fff;line-height:1.6;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}a{text-decoration:none;color:inherit}ul,li{list-style:none}.section-title{display:flex;align-items:center;justify-content:center;gap:12px;font-size:24px;font-weight:700;color:var(--primary-color);margin:48px 0 32px}.section-title:before,.section-title:after{content:"";display:inline-block;width:40px;height:2px;background:var(--primary-color);position:relative}.section-title:before{background:linear-gradient(to right,transparent,var(--primary-color))}.section-title:before:after{content:"";position:absolute;right:-6px;top:50%;transform:translateY(-50%);width:6px;height:6px;border-radius:50%;background:var(--primary-color)}.section-title:after{background:linear-gradient(to left,transparent,var(--primary-color))}.section-title .dot-left,.section-title .dot-right{width:6px;height:6px;border-radius:50%;background:var(--primary-color);display:inline-block}.card-hover{transition:transform .3s ease,box-shadow .3s ease;cursor:pointer}.card-hover:hover{transform:translateY(-4px);box-shadow:0 8px 24px #0000001f}.nav-link{color:var(--text-color);font-size:15px;transition:color .2s;padding:0 16px;line-height:60px;display:inline-block}.nav-link:hover{color:var(--primary-color)}.nav-link.active{color:var(--primary-color);font-weight:500}::-webkit-scrollbar{width:6px;height:6px}::-webkit-scrollbar-track{background:#f1f1f1;border-radius:3px}::-webkit-scrollbar-thumb{background:#ccc;border-radius:3px}::-webkit-scrollbar-thumb:hover{background:#aaa}.page-content{max-width:1200px;margin:0 auto;padding:0 20px}.btn-primary{background:var(--primary-color);color:#fff;border:none;border-radius:20px;padding:8px 24px;font-size:14px;cursor:pointer;transition:opacity .2s}.btn-primary:hover{opacity:.85}