:root{color-scheme:light;--paper:#f8f7f2;--ink:#22352b;--muted:#57675d;--green:#285a46;--line:#e5e8dc;--card:#fffefa;--soft:#eaf0df;--peach:#f8e9de;font-family:"PingFang SC","Microsoft YaHei","Noto Sans CJK SC",system-ui,sans-serif}*{box-sizing:border-box}body{margin:0;background:var(--paper);color:var(--ink);line-height:1.55}a{color:inherit;text-decoration:none}button,input,select,textarea{font:inherit}button{cursor:pointer}button:disabled{cursor:default;opacity:.55}button,a,input,textarea,select{outline-offset:4px}button:focus-visible,a:focus-visible,input:focus-visible,textarea:focus-visible,select:focus-visible{outline:2px solid #a46237}.shell{width:min(1096px,calc(100% - 64px));margin:auto}.top{background:#fffefa;border-bottom:1px solid var(--line)}.top-inner{height:77px;display:flex;align-items:center;justify-content:space-between;gap:28px}.brand{display:flex;align-items:center;gap:11px;font-size:20px;font-weight:800;line-height:1.2;white-space:nowrap}.brand img{width:44px;height:44px}.brand small{display:block;margin-top:4px;font-size:10px;font-weight:500;color:var(--muted);letter-spacing:.08em}nav{display:flex;align-items:center;gap:12px}nav a{padding:8px 15px;font-size:14px;color:var(--muted);border-radius:9px;white-space:nowrap}nav a[aria-current="page"]{background:var(--soft);color:var(--green);font-weight:750}.edition{border:1px solid var(--line);padding:6px 11px;border-radius:99px;color:var(--muted);font-size:12px;white-space:nowrap}.edition i{display:inline-block;width:7px;height:7px;background:#6d9363;border-radius:50%;margin-right:4px}main{padding:34px 0 43px;min-height:70vh}.hero{position:relative;overflow:hidden;display:grid;grid-template-columns:1.1fr 1fr;align-items:center;background:#285a46;border-radius:25px;padding:37px 48px;color:#fffdf1;min-height:305px}.hero>*{position:relative}.hero:before{content:"";position:absolute;inset:0;background:radial-gradient(ellipse at 78% 40%,#3d7055,transparent 65%)}.hero img{width:100%;height:268px;object-fit:contain}.kicker{font-size:12px;font-weight:750;letter-spacing:.12em;color:var(--green)}.hero .kicker{color:#d8e7bb}.hero h1{font-size:clamp(35px,5.1vw,61px);letter-spacing:.015em;margin:12px 0 10px;line-height:1.15}.hero p{color:#e3ecdb;margin:0 0 25px;font-size:15px}.actions{display:flex;gap:10px;flex-wrap:wrap;align-items:center}.btn{display:inline-flex;align-items:center;justify-content:center;min-height:43px;padding:9px 16px;border:1px solid transparent;border-radius:10px;background:var(--green);color:#fff;font-weight:700;font-size:14px}.btn.light{background:#e7efc7;color:#244933}.btn.ghost{border-color:#94ac91;background:transparent;color:#fffdf1}.btn.secondary{background:var(--soft);color:var(--green)}.btn:hover{filter:brightness(1.07)}.heading{display:flex;justify-content:space-between;align-items:end;gap:10px;margin:31px 0 14px}.heading h2,.heading p,.pagehead p{margin:0}.heading h2{font-size:23px}.heading p,.muted,.pagehead p{color:var(--muted);font-size:14px}.grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:15px}.feature,.panel,.course{background:var(--card);border:1px solid var(--line);border-radius:16px;padding:19px}.feature{display:block}.feature:hover,.course:hover{border-color:#a9b79e}.feature h3,.course h2{margin:10px 0 3px;font-size:17px}.feature p,.course p{margin:0;color:var(--muted);font-size:13px}.feature-top{display:flex;align-items:center;justify-content:space-between}.icon{display:grid;place-items:center;width:42px;height:42px;border-radius:12px;background:var(--soft);color:var(--green)}.icon.peach{background:var(--peach);color:#98552f}.icon.yellow{background:#f3efd7;color:#776630}.icon svg{width:22px;height:22px}.arrow{color:#496652;font-size:20px}.resume{display:flex;align-items:center;justify-content:space-between;gap:18px;margin-top:20px;background:#eff1e7;border-radius:15px;padding:16px 20px}.resume strong{display:block}.resume p{margin:3px 0 0}.pagehead{margin:0 0 22px}.pagehead h1{font-size:34px;margin:4px 0 5px}.course{display:flex;flex-direction:column;gap:10px}.cover{display:flex;align-items:end;justify-content:space-between;gap:8px;padding:16px;border-radius:11px;min-height:108px;background:var(--soft);font-weight:750}.cover.peach{background:var(--peach)}.cover.yellow{background:#f3efd7}.cover .icon{background:#fff9}.course .actions{margin-top:auto}.panel{margin-bottom:14px;padding:22px}.panel h2,.panel h3{margin:0 0 10px}.panel p{margin:8px 0}.split{display:grid;grid-template-columns:minmax(0,1.5fr) minmax(0,1fr);gap:16px}.badge{display:inline-flex;background:var(--soft);color:var(--green);font-size:12px;padding:4px 9px;border-radius:99px;white-space:nowrap}.row{display:flex;justify-content:space-between;align-items:center;gap:12px;padding:13px 0;border-top:1px solid var(--line)}.row:first-of-type{border-top:0}.row strong{display:block}.row p{margin:2px 0}.stack{display:grid;gap:14px}.stack label{display:grid;gap:5px;font-weight:650}.stack textarea,.stack input,.stack select{width:100%;border:1px solid #c9d2c5;border-radius:9px;padding:9px;background:#fff;color:var(--ink)}.stack textarea{min-height:85px;resize:vertical}.stack input[type=file]{padding:7px;font-size:14px}.stack .muted{font-weight:400}.notice{background:var(--soft);padding:12px 14px;border-radius:10px;color:#365343;font-size:14px}.notice.error{background:var(--peach);color:#854225}.note{white-space:pre-wrap;overflow-wrap:anywhere}.thumbs{display:flex;gap:8px;flex-wrap:wrap;margin-top:10px}.thumbs img{width:94px;height:105px;object-fit:contain;background:var(--paper);border:1px solid var(--line);border-radius:8px}.file{display:block;max-width:100%;overflow-wrap:anywhere}.video{width:100%;display:block;background:#224d3c;border-radius:12px;aspect-ratio:16/9}.footer{display:flex;justify-content:space-between;gap:10px;padding:17px 0 23px;border-top:1px solid var(--line);color:var(--muted);font-size:12px}.footer b{color:#9a582f}#toast{position:fixed;bottom:24px;left:50%;transform:translateX(-50%);width:max-content;max-width:calc(100% - 36px);background:#263d32;color:#fff;border-radius:10px;padding:10px 18px;z-index:4;font-size:14px}
@media(max-width:760px){.shell{width:calc(100% - 34px)}.top-inner{height:63px}.top nav{position:fixed;z-index:3;bottom:0;left:0;width:100%;justify-content:space-around;gap:2px;background:var(--card);border-top:1px solid var(--line);padding:7px 4px calc(7px + env(safe-area-inset-bottom))}.top nav a{padding:9px 12px}.hero{min-height:255px;padding:24px;grid-template-columns:1fr}.hero img{position:absolute;width:46%;height:auto;right:-4%;bottom:-5%;opacity:.55;pointer-events:none}.hero div{z-index:1}.hero p{max-width:235px}.hero h1{margin-top:9px}.grid{grid-template-columns:1fr;gap:9px}.feature{position:relative;padding:13px 45px 13px 67px;min-height:66px}.feature-top{position:absolute;inset:12px 15px 12px 12px;pointer-events:none}.feature h3{margin:0 0 2px}.split{grid-template-columns:1fr;gap:0}.heading{margin-top:23px}.heading h2{font-size:20px}.heading p{font-size:12px}.footer{padding-bottom:80px}.footer span:last-child{text-align:right}main{padding:20px 0 27px}.resume{padding:13px}.resume .btn{white-space:nowrap}#toast{bottom:67px}}
@media(max-width:360px){.shell{width:calc(100% - 24px)}.hero{padding:18px}.hero img{opacity:.35}.btn{padding-inline:11px}}