:root{--c-primary: #0e7c66;--c-primary-dark: #0b5c4c;--c-primary-light: #1d9e83;--c-gold: #e9b44c;--c-text: #1d2b27;--c-text-sub: #44524d;--c-text-mute: #66756f;--c-text-faint: #9aa8a3;--c-bg: #f5f7f6;--c-surface: #fff;--c-border: #e6ebe9;--header-h: 60px;--tabbar-h: 56px;--page-max: 1200px;--page-pad: 24px;--fs-h1: 34px;--fs-body: 14px}*{box-sizing:border-box}html,body,#root{margin:0;padding:0;min-height:100%;background:var(--c-bg);-webkit-text-size-adjust:100%}body{font-family:-apple-system,BlinkMacSystemFont,PingFang SC,Hiragino Sans GB,Microsoft YaHei,Helvetica Neue,Arial,sans-serif;color:var(--c-text);-webkit-tap-highlight-color:transparent;overflow-x:hidden}img{max-width:100%;height:auto}.app-shell{min-height:100vh;display:flex;flex-direction:column}.app-header{position:sticky;top:0;z-index:100;display:flex;align-items:center;gap:24px;padding:0 32px;height:var(--header-h);background:#ffffffeb;backdrop-filter:blur(8px);-webkit-backdrop-filter:blur(8px);border-bottom:1px solid var(--c-border)}.app-logo{display:flex;align-items:center;gap:10px;font-weight:700;font-size:17px;color:var(--c-primary);cursor:pointer;white-space:nowrap;flex-shrink:0}.app-logo svg{display:block}.app-nav{display:flex;gap:4px;flex:1;min-width:0}.app-nav a{padding:6px 14px;border-radius:8px;color:var(--c-text-sub);text-decoration:none;font-size:14px;white-space:nowrap;transition:all .15s}.app-nav a:hover{background:#eef4f2;color:var(--c-primary)}.app-nav a.active{background:var(--c-primary);color:#fff}.app-main{flex:1;width:100%;max-width:var(--page-max);margin:0 auto;padding:28px var(--page-pad) 56px}.app-footer{text-align:center;padding:20px;color:var(--c-text-faint);font-size:12px;border-top:1px solid var(--c-border);background:var(--c-surface)}.app-tabbar{display:none}.hero{border-radius:20px;padding:56px 48px;color:#fff;background:linear-gradient(120deg,#0b5c4c,#0e7c66 45%,#1d9e83);position:relative;overflow:hidden}.hero:after{content:"";position:absolute;right:-80px;top:-80px;width:320px;height:320px;border-radius:50%;border:42px solid rgba(255,255,255,.08)}.hero:before{content:"";position:absolute;right:120px;bottom:-120px;width:220px;height:220px;border-radius:50%;background:#ffffff0f}.hero h1{font-size:var(--fs-h1);margin:0 0 14px;position:relative;z-index:1;line-height:1.25}.hero p{font-size:15px;max-width:620px;line-height:1.8;opacity:.92;position:relative;z-index:1;margin:0}.mod-head{display:flex;align-items:center;gap:14px;margin-bottom:14px}.mod-cover{width:84px;height:84px;flex:0 0 auto;object-fit:cover;border-radius:14px;border:1px solid var(--c-border);background:#eef3f1}.mod-head-text{min-width:0;display:flex;flex-direction:column;gap:4px}.course-card{overflow:hidden}.course-cover-wrap{position:relative;display:block}.course-cover{width:100%;aspect-ratio:16 / 9;object-fit:cover;display:block;background:#eef3f1}.course-cover-badge{position:absolute;right:8px;bottom:8px;display:inline-flex;align-items:center;gap:4px;padding:3px 10px;border-radius:12px;background:#0e7c66eb;color:#fff;font-size:12px;font-weight:600;line-height:1.6;box-shadow:0 2px 8px #0000002e}.course-cover-lock{position:absolute;right:8px;bottom:8px;display:inline-flex;align-items:center;gap:4px;padding:3px 10px;border-radius:12px;background:#1c2622c7;color:#fff;font-size:12px;font-weight:600;line-height:1.6;box-shadow:0 2px 8px #0000002e}.bundle-card{border:1px solid #f0d9a0;background:linear-gradient(135deg,#fffdf7,#fff8ea)}.bundle-inner{display:flex;align-items:center;justify-content:space-between;gap:20px;flex-wrap:wrap}.bundle-text{min-width:0;flex:1 1 320px}.bundle-title{font-size:17px;font-weight:700;color:#8a5a00}.bundle-desc{margin-top:6px;font-size:13px;color:#7a6a4f;line-height:1.7}.bundle-action{display:flex;flex-direction:column;align-items:flex-end;gap:10px;flex:0 0 auto}.bundle-price{font-size:30px;font-weight:800;color:#c8901a;line-height:1}.bundle-price-unit{font-size:13px;font-weight:500;color:#9a8352;margin-left:4px}.module-cards{display:grid;grid-template-columns:repeat(auto-fit,minmax(300px,1fr));gap:20px;margin-top:28px}.module-card{background:var(--c-surface);border:1px solid var(--c-border);border-radius:16px;padding:26px;cursor:pointer;transition:all .2s}.module-card:hover{transform:translateY(-3px);box-shadow:0 12px 28px #0e7c661f;border-color:var(--c-primary)}.module-card .icon-wrap{width:52px;height:52px;border-radius:14px;display:flex;align-items:center;justify-content:center;font-size:24px;margin-bottom:14px}.module-card h3{margin:0 0 8px;font-size:17px;color:var(--c-text)}.module-card p{margin:0;color:var(--c-text-mute);font-size:13px;line-height:1.7}.case-card{background:var(--c-surface);border:1px solid var(--c-border);border-radius:14px;padding:22px;margin-bottom:16px}.case-card h3{margin:0 0 6px;color:var(--c-text)}.case-md{line-height:1.9;color:#37413d;font-size:var(--fs-body);white-space:pre-wrap;word-break:break-word}.case-md h1,.case-md h2,.case-md h3{color:var(--c-primary-dark);white-space:normal}.md-body{line-height:1.9;font-size:var(--fs-body);color:#37413d;word-break:break-word}.md-body h2{font-size:17px;color:var(--c-primary-dark);border-left:3px solid var(--c-primary);padding-left:10px;margin:22px 0 10px}.md-body h3{font-size:15px;color:var(--c-primary);margin:16px 0 8px}.md-body p{margin:8px 0}.md-body ul{padding-left:20px;margin:8px 0}.md-body li{margin:4px 0}.md-body strong{color:var(--c-primary-dark)}.player-topbar{display:flex;align-items:center;gap:10px;margin-bottom:14px;min-width:0}.player-topbar .player-title{flex:1;min-width:0;font-size:15px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.player-progress{flex-shrink:0;font-size:13px}.player-layout{display:grid;grid-template-columns:1fr;gap:16px}.player-layout-multi{grid-template-columns:260px 1fr}.player-toc{align-self:start;max-height:78vh;overflow-y:auto}.player-stage{min-width:0}.player-iframe{width:100%;height:78vh;border:none;display:block}.player-nav{display:flex;justify-content:space-between;padding:10px 16px;border-top:1px solid #eef2f0}.modeler-layout{display:grid;grid-template-columns:1fr 300px;gap:16px}.modeler-canvas-wrap{background:var(--c-surface);border:1px solid var(--c-border);border-radius:14px;overflow:hidden}.modeler-side{display:flex;flex-direction:column;gap:16px}.panel-card{background:var(--c-surface);border:1px solid var(--c-border);border-radius:14px;padding:18px}.panel-card h4{margin:0 0 12px;color:var(--c-text);font-size:14px}@media (max-width: 960px){.modeler-layout{grid-template-columns:1fr}}@media (max-width: 768px){:root{--header-h: 52px;--page-pad: 14px;--fs-h1: 23px;--fs-body: 15px}.app-header{gap:10px;padding:0 14px}.app-nav{display:none}.app-logo{font-size:15px;gap:8px;flex:1;min-width:0;overflow:hidden;text-overflow:ellipsis}.app-logo svg{width:26px;height:26px;flex-shrink:0}.app-username{display:none}.app-login-btn{flex-shrink:0}.app-main{padding:18px var(--page-pad) calc(var(--tabbar-h) + 28px + env(safe-area-inset-bottom,0px))}.app-footer{display:none}.app-tabbar{display:flex;position:fixed;left:0;right:0;bottom:0;z-index:200;height:calc(var(--tabbar-h) + env(safe-area-inset-bottom,0px));padding-bottom:env(safe-area-inset-bottom,0px);background:#fffffff5;backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px);border-top:1px solid var(--c-border)}.app-tabbar a{flex:1;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:3px;color:var(--c-text-mute);text-decoration:none;font-size:11px;transition:color .15s}.app-tabbar a .anticon{font-size:20px;line-height:1}.app-tabbar a.active{color:var(--c-primary);font-weight:600}.app-immersive .app-tabbar,.app-immersive .app-header{display:none}.app-immersive .app-main{padding:0;flex:1;display:flex;flex-direction:column;min-height:0}.app-immersive .player-topbar{margin:0;padding:8px 14px}.app-immersive .player-stage{flex:1 1 auto;min-height:0}.hero{border-radius:16px;padding:28px 20px}.hero h1{font-size:var(--fs-h1);margin-bottom:10px}.hero p{font-size:14px;line-height:1.75}.hero:after{width:180px;height:180px;right:-60px;top:-60px;border-width:26px}.hero:before{width:130px;height:130px;right:40px;bottom:-70px}.module-cards{grid-template-columns:1fr;gap:14px;margin-top:18px}.mod-head{gap:10px;margin-bottom:10px}.mod-cover{width:60px;height:60px;border-radius:11px}.course-cover-badge{font-size:11px;padding:2px 8px;right:6px;bottom:6px}.module-card{padding:20px;border-radius:14px}.module-card:hover{transform:none}.case-card{padding:16px;border-radius:12px}.panel-card{padding:14px}.player-topbar{flex-wrap:wrap;gap:8px;margin-bottom:10px}.player-topbar .player-title{order:-1;flex-basis:100%;font-size:14px}.player-layout-multi{grid-template-columns:1fr;gap:10px}.player-toc{max-height:none;overflow:visible}.player-toc .ant-card-head{min-height:38px;padding:0 12px}.player-toc .ant-card-head-title{font-size:13px}.player-toc .ant-list{display:flex;overflow-x:auto;-webkit-overflow-scrolling:touch}.player-toc .ant-list-item{flex:0 0 auto;width:auto;min-width:96px;padding:10px 12px!important;border-left-width:0!important;border-bottom:3px solid transparent}.player-toc .ant-list-item[style*=eef7f4]{border-bottom-color:var(--c-primary)!important}.player-stage{display:flex;flex-direction:column;min-height:0}.player-iframe{flex:1 1 auto;height:auto;min-height:0}.app-immersive .player-iframe{height:calc(100dvh - 56px - env(safe-area-inset-bottom,0px))}.player-nav{padding:10px 12px}.modeler-layout{grid-template-columns:1fr;gap:12px}.modeler-canvas-wrap{overflow-x:auto;-webkit-overflow-scrolling:touch}}@media (max-width: 380px){:root{--fs-h1: 20px}.app-logo span,.app-logo{font-size:14px}.hero{padding:24px 16px}}@media (max-width: 900px) and (orientation: landscape) and (max-height: 500px){.hero{padding:20px 24px}.app-main{padding-top:12px}}