:root{--primary-blue: #b51515;--bg-grey: #F9F9F9;--text-black: #333333;--muted-grey: #999999;--white: #FFFFFF;--container-width: 1200px;--font-family: "Microsoft YaHei", Arial, SimSun, sans-serif;--hover-green: #82D39A}*{margin:0;padding:0;box-sizing:border-box}body{font-family:var(--font-family);background-color:var(--bg-grey);color:var(--text-black);line-height:1.6}.container{width:var(--container-width);margin:0 auto;position:relative}a{text-decoration:none;color:inherit}ul{list-style:none}.section-title{font-size:20px;font-weight:700;border-bottom:2px solid var(--primary-blue);padding-bottom:5px;margin-bottom:15px;display:flex;justify-content:space-between;align-items:center}.more-link{font-size:12px;color:var(--muted-grey);font-weight:400}.nav-item-wrapper{position:relative;height:100%}.dropdown-menu{position:absolute;top:100%;left:0;background-color:#fff;min-width:200px;box-shadow:0 8px 16px #0000001a;display:none;z-index:1000;border-radius:0 0 4px 4px}.nav-item-wrapper:hover .dropdown-menu{display:block}.dropdown-item{padding:12px 20px;color:#333;font-size:14px;border-bottom:1px solid #f0f0f0;white-space:nowrap;transition:all .2s}.dropdown-item:last-child{border-bottom:none}.dropdown-item:hover{background-color:var(--hover-green);color:#fff}.interactive-card{transition:all .3s ease;cursor:pointer}.interactive-card:hover{background-color:var(--hover-green)!important;color:#fff!important;transform:translateY(-2px);box-shadow:0 4px 12px #0000001a}