@-webkit-keyframes fadeIn{0%{opacity:0;-webkit-transform:translateY(20px);transform:translateY(20px)}to{opacity:1;-webkit-transform:translateY(0);transform:translateY(0)}}@keyframes fadeIn{0%{opacity:0;-webkit-transform:translateY(20px);transform:translateY(20px)}to{opacity:1;-webkit-transform:translateY(0);transform:translateY(0)}}.header{background-color:#fff;box-shadow:0 2px 12px rgba(0,0,0,.08);padding:16px 0;position:-webkit-sticky;position:sticky;top:0;z-index:100}.header-content{max-width:1200px;margin:0 auto;padding:0 24px;display:-webkit-flex;display:-moz-box;display:-ms-flexbox;display:flex;-webkit-justify-content:space-between;-moz-box-pack:justify;-ms-flex-pack:justify;justify-content:space-between;-webkit-align-items:center;-moz-box-align:center;-ms-flex-align:center;align-items:center}.logo,a{color:#007aff;text-decoration:none}.logo,.logo-icon{display:-webkit-flex;display:-moz-box;display:-ms-flexbox;display:flex;-webkit-align-items:center;-moz-box-align:center;-ms-flex-align:center;align-items:center}.logo{font-size:20px;font-weight:700;gap:8px}.logo-icon{width:28px;height:28px;background-color:#007aff;border-radius:4px;-webkit-justify-content:center;-moz-box-pack:center;-ms-flex-pack:center;justify-content:center;color:#fff;font-size:16px}.container{max-width:1000px;margin:40px auto;padding:0 24px}.content-card{background-color:#fff;border-radius:12px;box-shadow:0 4px 20px rgba(0,0,0,.06);padding:48px;transition:transform .3s ease,box-shadow .3s ease;transition:transform .3s ease,box-shadow .3s ease,-webkit-transform .3s ease}.content-card:hover{-webkit-transform:translateY(-2px);transform:translateY(-2px);box-shadow:0 8px 30px rgba(0,0,0,.1)}.last-updated,h1{text-align:center;margin-bottom:40px}h1{color:#2c3e50;font-size:28px;padding-bottom:16px}h1::after{content:'';position:absolute;bottom:0;left:50%;-webkit-transform:translateX(-50%);transform:translateX(-50%);width:80px;height:3px;background:linear-gradient(90deg,#007aff,#2ecc71);border-radius:2px}h2,ol,ul{margin-bottom:24px}h1,h2,h3{font-weight:600}h2{color:#2c3e50;font-size:20px;margin-top:40px;padding-left:16px;border-left:4px solid #007aff}h3{color:#34495e;font-size:16px;margin-top:32px;margin-bottom:16px}li,p{margin-bottom:20px;color:#555;font-size:15px}.last-updated{color:#95a5a6;font-style:italic;font-size:14px}.indented{text-indent:2em;line-height:1.8}ol,ul{padding-left:24px}h1,li{position:relative}li{margin-bottom:12px}ul li{list-style-type:none}ul li::before{content:'•';color:#007aff;font-weight:700;margin-right:12px;font-size:18px}a{transition:color .3s ease}a:hover{color:#2980b9;text-decoration:underline}.back-link{display:inline-block;margin-bottom:32px;color:#007aff;font-size:14px;font-weight:500;display:-webkit-flex;display:-moz-box;display:-ms-flexbox;display:flex;-webkit-align-items:center;-moz-box-align:center;-ms-flex-align:center;align-items:center;gap:6px}.back-link::before{content:'←';font-size:16px}.contact-section{margin-top:48px;padding-top:32px;border-top:1px solid #ecf0f1}@media (max-width:768px){.container{margin:24px auto;padding:0 16px}.content-card{padding:32px 20px}h1{font-size:24px;margin-bottom:32px}h2{font-size:18px;margin-top:32px}.header-content{padding:0 16px}}@media (max-width:480px){.content-card{padding:24px 16px}h1{font-size:20px}h2{font-size:16px}li,p{font-size:14px}}.yxm-hide{display:none;font-size:0}.content-card{-webkit-animation:fadeIn .6s ease-out;animation:fadeIn .6s ease-out}