*{box-sizing:border-box}body{margin:0;background:#f5f5f2;color:#292b2d;font:16px/1.85 -apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Microsoft YaHei",sans-serif}a{color:inherit;text-underline-offset:5px}a:hover{color:#805309}a:focus-visible{outline:3px solid #ab7209;outline-offset:5px}h1,h2,h3,p,figure{margin:0}p{margin-bottom:18px}h1,h2,h3{line-height:1.35}h2{font-size:32px;letter-spacing:-.035em}h3{font-size:22px}img{display:block;max-width:100%}ol,ul{padding-left:24px}li{margin:16px 0}.sh-skip{position:absolute;top:-100px;background:#242628;color:white;padding:12px;z-index:5}.sh-skip:focus{top:0}.sh-header,.sh-footer{max-width:1240px;margin:auto;display:flex;justify-content:space-between;align-items:center;gap:30px;padding:26px 44px}.sh-header{border-bottom:1px solid #d2d4d2}.sh-brand{display:flex;align-items:baseline;gap:12px}.sh-brand>a,.sh-brand>[aria-current]{font-weight:800;text-decoration:none;font-size:21px}.sh-brand>span:last-child{font-size:12px;letter-spacing:.04em;color:#606368}.sh-header nav,.sh-footer nav{display:flex;gap:25px;font-size:14px}.sh-header nav a{text-decoration:none}.sh-header nav [aria-current]{border-bottom:2px solid #c18b29}.sh-intro{max-width:1020px;margin:auto;text-align:center;padding:50px 40px 0}.sh-topic{font-size:12px;letter-spacing:.14em;color:#6d5a39;margin-bottom:15px}.sh-intro h1{font-size:47px;letter-spacing:-.04em;font-weight:700}.sh-intro h1 span{color:#65696d;font-weight:500}.sh-intro-answer{max-width:650px;margin:23px auto;color:#606366;font-size:16px}.sh-tasks{display:flex;justify-content:center;gap:12px;margin:26px 0}.sh-tasks a{display:flex;gap:30px;justify-content:space-between;align-items:center;background:#292b2d;color:white;padding:12px 21px;text-decoration:none;font-size:14px;border-radius:3px}.sh-tasks a:last-child{background:transparent;border:1px solid #525557;color:#292b2d}.sh-tasks a:hover{background:#835a1e;color:white}.sh-intro img{width:100%;height:290px;object-fit:cover;object-position:center 55%}.sh-intro figcaption{font-size:11px;color:#6b6d70;margin:6px 0 0}.sh-preparation,.sh-handover,.sh-maintain,.sh-help,.sh-tutorials{max-width:1080px;margin:auto;padding:58px 25px;border-bottom:1px solid #d0d2d0}.sh-section-title{margin-bottom:32px}.sh-section-title>p:last-child:not(.sh-topic){color:#696c6f;margin-top:15px}.sh-compare{display:grid;grid-template-columns:1fr 1fr;gap:55px;margin:27px 0}.sh-compare>div{padding-top:19px;border-top:3px solid #b9bebf}.sh-compare>div:last-child{border-color:#dca94c}.sh-compare h3{margin-bottom:14px}.sh-compare p{color:#606367}.sh-inline{font-size:14px;font-weight:600}.sh-route{display:grid;grid-template-columns:repeat(4,1fr);gap:30px;padding:0;list-style:none;position:relative}.sh-route:before{content:"";position:absolute;left:0;right:0;top:8px;height:2px;background:#d4a455}.sh-route li{margin:0;padding-top:34px;position:relative}.sh-route li:before{content:"";position:absolute;top:2px;left:0;width:14px;height:14px;border:3px solid #f5f5f2;background:#a56d13;border-radius:50%;outline:1px solid #d4a455}.sh-route strong{font-size:18px}.sh-route p{font-size:14px;color:#63666a;margin:10px 0}.sh-maintain{background:#e9eae7;border-left:5px solid #d9a849;padding-left:35px;padding-right:35px;margin-top:20px}.sh-maintain h2{margin-bottom:25px}.sh-maintain-copy{display:grid;grid-template-columns:1fr 1fr;gap:45px;color:#565a5f}.sh-help{display:grid;grid-template-columns:1fr 1.2fr;gap:65px}.sh-help dl{margin:0}.sh-help dt{font-size:18px;font-weight:650;margin-bottom:10px}.sh-help dd{margin:0 0 24px;color:#62666b}.sh-tutorials>h2{margin-bottom:32px}.sh-reading{display:grid;grid-template-columns:1fr 1fr;gap:45px}.sh-story{border-top:1px solid #8d9295;padding:25px 0}.sh-story h3{font-size:24px;margin-bottom:18px}.sh-story h3 a{text-decoration:none}.sh-story>p:last-child{font-size:15px;color:#62666b;margin:0}.sh-bottom-note{font-size:13px;color:#666a6d;margin:24px 0 0}.sh-footer{padding-top:37px;padding-bottom:37px;align-items:start}.sh-footer>div{max-width:580px}.sh-footer strong{font-size:22px}.sh-footer strong span{font-size:14px;font-weight:400}.sh-footer small{display:block;margin-top:13px;font-size:11px;color:#666a6c}.sh-footer nav{flex-shrink:0;font-size:13px;padding-top:8px}.sh-document{max-width:850px;padding:28px 38px 65px;margin:auto}.sh-crumb{display:flex;gap:13px;font-size:12px;color:#666a6c}.sh-dochead{padding:35px 0 28px;border-bottom:2px solid #b8bdbe;margin-bottom:30px}.sh-dochead h1{font-size:37px;letter-spacing:-.035em;margin:12px 0 22px}.sh-dochead>p:last-child{font-size:18px;color:#62666a;margin:0}.sh-dochead .sh-byline{font-size:12px!important}.sh-text{font-size:17px;color:#41464a}.sh-text h2{font-size:27px;color:#25292c;margin:36px 0 18px}.sh-answer{font-size:20px;font-weight:500;border-left:3px solid #c4933a;padding-left:22px}.sh-reference{font-size:13px;border-top:1px solid #d0d2d0;padding-top:22px;margin-top:35px;color:#61676d}.sh-document .sh-reading{grid-template-columns:1fr;gap:0}.sh-document .sh-story{padding:24px 0}.sh-document .sh-story h3{font-size:23px}@media(max-width:850px){.sh-header,.sh-footer{padding-left:25px;padding-right:25px}.sh-brand>span:last-child{display:none}.sh-preparation,.sh-handover,.sh-maintain,.sh-help,.sh-tutorials{margin-left:25px;margin-right:25px;padding-left:0;padding-right:0}.sh-route{grid-template-columns:1fr 1fr}.sh-route:before{display:none}.sh-route li{border-top:1px solid #d4a455}.sh-route li:before{top:-7px}.sh-maintain{padding:32px 25px}.sh-help{gap:35px}.sh-footer nav{gap:18px}}@media(max-width:600px){body{font-size:15px}.sh-header{display:block;padding:20px 22px}.sh-brand{margin-bottom:14px}.sh-header nav{gap:27px;font-size:13px}.sh-intro{padding:30px 22px 0;text-align:left}.sh-intro h1{font-size:32px;line-height:1.45}.sh-intro-answer{font-size:15px;margin:18px 0 22px}.sh-topic{font-size:11px}.sh-tasks{display:flex;flex-direction:column;gap:10px;margin:22px 0}.sh-tasks a{min-height:46px;padding:10px 16px}.sh-intro img{height:200px}.sh-intro figcaption{font-size:10px;text-align:left}.sh-preparation,.sh-handover,.sh-help,.sh-tutorials{margin:0 22px;padding:35px 0}.sh-section-title{margin-bottom:25px}h2{font-size:27px}.sh-compare{display:block;margin:0}.sh-compare>div{margin:22px 0}.sh-compare h3{font-size:21px}.sh-route{display:block;margin:0;padding-left:7px}.sh-route li{padding:0 0 22px 23px;border-top:0;border-left:2px solid #d4a455}.sh-route li:last-child{padding-bottom:0}.sh-route li:before{top:8px;left:-8px}.sh-route strong{font-size:18px}.sh-route p{font-size:15px;margin:8px 0}.sh-maintain{margin:12px 22px;padding:27px 22px}.sh-maintain-copy{display:block}.sh-help{display:block}.sh-help h2{font-size:26px}.sh-help dd{font-size:15px}.sh-reading{display:block}.sh-story h3{font-size:22px}.sh-footer{display:block;padding:28px 22px}.sh-footer nav{margin-top:20px;flex-wrap:wrap}.sh-document{padding:23px 22px 40px}.sh-dochead{padding:27px 0 23px;margin-bottom:25px}.sh-dochead h1{font-size:29px}.sh-dochead>p:last-child{font-size:16px}.sh-text{font-size:16px}.sh-text h2{font-size:24px}.sh-answer{font-size:18px;padding-left:17px}.sh-reference{font-size:12px}}