/* constructor */
.zxx_constr { width: 1420px; margin-left: auto; margin-right: auto; }
.zxx_logo { position: absolute; top: 0; margin-top: 14px; }
.zxx_author_time { float: right; margin-top: 40px; color: #999; font-family: tahoma; }
.zxx_api { width: 40px; height: 40px; line-height: 40px; font-size: 15px; font-family: tahoma; text-align:center; overflow: hidden; position: fixed; _position: absolute; right: 0 ; top: 0; color: #fff; background-color: #34538b; background-color: rgba(0,0,0,0); *background-color: #34538b; }
.zxx_api::before { content: ''; width: 80px; height: 80px; border-radius: 80px; background-color: #34538b; position:absolute; right: -40px; top: -40px;}
.zxx_api::after { content: 'API'; position: absolute; top: -4px; left: 14px; }
.zxx_api:hover::before { background-color: #cd0000; }
.zxx_nav { border-top: 2px solid #0b63c6; background-color: #1161ba; }
.zxx_nav_ul { width: 100%; overflow: hidden; font-size: 14px; font-weight: bold; }
.zxx_nav_li { float: left;}
.zxx_nav_a { display: block; padding: 10px 25px; color: #fff;  text-decoration: none; }
.zxx_nav_on { background-color: #fff; box-shadow: inset 1px 1px #ccc; color: #333;}
.zxx_nav_sp { float: right; margin-top: 5px; font-size: 12px; white-space: nowrap; }
.zxx_rbtn, .zxx_gbtn{display:inline-block; padding:5px 20px; color: #fff; font-weight:bold; text-decoration: none; vertical-align: middle;}
.zxx_rbtn{background-color: #cd0000;}
.zxx_gbtn{background-color: green;}
.zxx_rbtn:hover, .zxx_gbtn:hover{text-decoration:none; color:#fff;}
.zxx_btn:active, .zxx_gbtn:active{box-shadow:inset 0 2px 3px rgba(0,0,0,.35); padding-top:6px; padding-bottom:4px;}