:root{--blue:#296c9e;--ink:#214c70;--muted:#6e8597;--line:#dbe6eb;--soft:#f1f6f7;--rose:#f3e9e5;--sage:#e4ece5;font-family:"Microsoft YaHei","PingFang SC",sans-serif;color:var(--ink);background:#fff;font-size:15px}*{box-sizing:border-box}body{margin:0}a{color:inherit;text-decoration:none}button,input,textarea,select{font:inherit}button,.button{display:inline-flex;align-items:center;justify-content:center;gap:7px;border:1px solid var(--line);border-radius:4px;background:white;color:var(--ink);padding:10px 17px;cursor:pointer;line-height:1.4}button:hover,.button:hover{border-color:var(--blue);background:#f5f9fc}button:disabled{opacity:.5;cursor:not-allowed}.primary{background:var(--blue);color:#fff;border-color:var(--blue)}.primary:hover{background:#205c89;color:#fff}.danger{color:#a13d40;border-color:#e0bebe}.small{padding:6px 10px;font-size:13px}:focus-visible{outline:3px solid #e9b74e;outline-offset:3px}h1,h2,h3,p{margin-top:0}h1{font-size:30px;line-height:1.55;margin-bottom:18px}h2{font-size:23px;line-height:1.6}h3{font-size:18px;line-height:1.6}p{line-height:1.85;white-space:pre-line}small,.muted{color:var(--muted)}.topbar{min-height:86px;display:flex;align-items:center;gap:24px;padding:12px 4%;border-bottom:1px solid var(--line);background:#ffffffd9}.brand{display:flex;align-items:center;flex-shrink:0}.brand b{font-size:27px;line-height:1.1}.brand small{display:block;font-size:9px;letter-spacing:.4px}.brand img{width:57px;height:57px;object-fit:contain}.tagline{font-size:12px;line-height:1.6}.main-nav{display:flex;gap:25px;align-items:center;margin-left:auto;font-size:13px}.main-nav a[aria-current=page]{font-weight:bold;border-bottom:2px solid var(--blue)}.account{display:flex;align-items:center;gap:8px}.account .button{font-size:12px;min-width:70px}.mobile-menu{display:none}.page{max-width:1260px;margin:auto;padding:36px 4% 50px;min-height:calc(100vh - 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4%;font-size:12px;display:flex;justify-content:space-between;gap:20px;flex-wrap:wrap;color:var(--muted)}.footer nav{display:flex;gap:20px}.skip{position:absolute;top:-100px;left:10px;z-index:100}.skip:focus{top:10px;background:white;padding:10px}.loading{padding:60px;text-align:center}.home{min-height:650px;background-size:cover;background-position:center;position:relative}.home .topbar{background:#ffffff40}.home-main{display:grid;grid-template-columns:1fr 1.05fr;gap:9%;max-width:1220px;margin:auto;padding:55px 5% 65px}.home-copy{padding-top:26px}.home-copy h1{font-size:38px;max-width:480px;line-height:1.65}.home-copy .rule{width:45px;border-top:2px solid var(--blue);margin:25px 0}.home-copy .closing{font-weight:bold;color:#438b9e;margin-top:28px}.home-tiles{display:grid;grid-template-columns:1fr 1fr;gap:22px}.home-tile{min-height:236px;position:relative;display:flex;flex-direction:column;justify-content:center;padding:24px 22px;background-size:100% 100%;border-radius:25px}.home-tile h2{font-size:22px;margin:20px 0 6px}.home-tile p{font-size:12px;margin:0}.home-tile small{font-size:10px;color:var(--blue)}.home-tile .arrow{position:absolute;right:-5px;bottom:9px;background:#fff;padding:2px 8px;border-radius:3px}.split{display:grid;grid-template-columns:.85fr 1.15fr;gap:65px;align-items:center;margin:35px 0}.split>img{width:100%;max-height:460px;object-fit:contain;border-radius:25px}.split .copy p{margin-bottom:14px}.scenic{background-size:cover;background-position:center}.product .split{grid-template-columns:1fr 1fr;gap:10%;padding:12px 0}.product .copy h1{font-size:34px}.lead{font-size:21px;line-height:1.7}.play-grid{display:grid;grid-template-columns:1fr 1fr;gap:20px;padding:20px 0 30px;background-size:100% 100%}.play-card{display:flex;gap:22px;padding:20px;background:white;border:1px solid var(--line);border-radius:18px;min-height:170px;text-align:left}.play-card img{width:126px;height:138px;object-fit:cover;border-radius:16px}.play-card h3{font-size:17px;margin:8px 0}.play-card p{font-size:12px;line-height:1.8;margin:0}.play-card small{font-size:10px}.pagination{display:flex;align-items:center;justify-content:center;gap:25px}.story-layout{display:grid;grid-template-columns:.8fr 1.4fr;gap:45px}.story-layout aside img{width:100%;border-radius:4px;margin-bottom:20px}.prose{max-width:900px;margin:auto;font-size:15px;line-height:1.95}.prose h3{margin-top:28px}.story-layout .prose{columns:2;column-gap:30px;font-size:13px}.story-layout .prose p{break-inside:avoid}.creator-layout{display:grid;grid-template-columns:1.2fr .8fr;gap:50px;align-items:center}.creator-layout img{width:100%;max-height:600px;object-fit:contain}.faq-content{max-height:60vh;overflow:auto;padding:0 30px 0 0;scrollbar-color:#a9c2d4 transparent}.faq-content h3{font-size:16px;margin-top:24px}.partners .panel img{height:260px;width:100%;object-fit:contain}.partners h2{margin:15px 0}.auth{background-size:cover;min-height:calc(100vh - 164px)}.auth-grid{display:grid;grid-template-columns:1fr 1fr;max-width:1100px;margin:auto;gap:10%;align-items:center;padding:60px 5%}.auth-intro h1{font-size:36px}.auth-form{background:#ffffffee;padding:35px;border-radius:12px;border:1px solid var(--line)}.field{display:block;margin:17px 0}.field>span{display:block;margin-bottom:8px;font-size:14px}input:not([type=checkbox]):not([type=radio]),textarea,select{border:1px solid #c9d8e2;border-radius:4px;background:#fff;padding:12px;width:100%;color:var(--ink)}input[type=checkbox],input[type=radio]{accent-color:var(--blue)}textarea{min-height:110px;resize:vertical}.check{display:flex;align-items:center;gap:9px;line-height:1.8;margin:14px 0;font-size:13px}.form-error,.error{color:#a83838;line-height:1.6}.notice{background:#f6f1e8;color:#7a6542;padding:13px 17px;line-height:1.7;font-size:13px;border-radius:5px}.tabs{display:flex;gap:10px;border-bottom:1px solid var(--line);margin-bottom:20px;padding-bottom:10px}.tabs .active{background:var(--blue);color:#fff}.activation{max-width:700px;margin:35px auto;background:#f2f7f6;border-radius:15px;padding:40px}.metric{display:block;font-size:35px;margin:10px 0}.steps{display:flex;gap:10px;margin-bottom:30px;color:var(--muted)}.steps strong{color:var(--blue)}.canvas-choice{display:block;padding:22px;border:1px solid var(--line);border-radius:10px;background:#f8faf9;cursor:pointer}.canvas-choice:has(input:checked){border:2px solid var(--blue);padding:21px;background:#edf5f7}.canvas-choice .mini-board{height:100px;margin-bottom:12px;border:1px dashed #bfd0d8;background:white;display:grid;place-items:center}.room-code{font-size:35px;letter-spacing:5px}.qr{width:200px;height:200px;object-fit:contain}.table-wrap{overflow:auto}table{border-collapse:collapse;width:100%;font-size:13px}th,td{text-align:left;padding:13px 10px;border-bottom:1px solid var(--line);vertical-align:top}th{background:var(--soft)}.workspace{display:grid;grid-template-columns:190px 1fr;gap:30px;max-width:1450px;margin:auto;padding:25px 3%}.sidebar{display:flex;flex-direction:column;gap:5px;border-right:1px solid var(--line);padding-right:18px}.sidebar a{padding:12px;font-size:13px}.sidebar a.active{background:var(--blue);color:white;border-radius:4px}.board-page{max-width:1600px;padding:20px 2%;margin:auto}.board-header{display:flex;justify-content:space-between;align-items:center;gap:20px;margin-bottom:15px}.board-header h1{font-size:22px;margin:0}.board-layout{display:grid;grid-template-columns:180px minmax(0,1fr) 220px;gap:16px}.board-layout.guest{grid-template-columns:180px minmax(0,1fr) 185px}.material-list{display:grid;grid-template-columns:1fr 1fr;gap:7px}.material{padding:5px;display:block;font-size:11px}.material img{width:100%;height:100px;object-fit:contain}.board-wrap{min-width:0}.board-tools{display:flex;gap:7px;flex-wrap:wrap;margin-bottom:10px}.board-tools button{font-size:12px;padding:7px 10px}.board{position:relative;width:100%;aspect-ratio:1200/760;border:1px solid #c8d7dc;background:#f7faf8;background-size:contain;background-position:center;background-repeat:no-repeat;overflow:hidden;touch-action:none}.board-item{position:absolute;display:flex;align-items:center;justify-content:center;border:1px solid #c0ced2;background:#fff;cursor:grab;box-shadow:0 3px 7px #153c681a;white-space:pre-wrap;overflow:hidden;text-align:center;padding:0;min-width:0;touch-action:none}.board-item.text{padding:8px;background:#fffdf2;font-size:16px;box-shadow:none}.board-item img{width:100%;height:100%;object-fit:contain;pointer-events:none}.board-item.selected{outline:3px solid #d5a648;z-index:100}.board-side{font-size:13px}.board-side>button,.board-side>.button{width:100%;margin-bottom:8px}.board-side textarea{min-height:180px}.presence{display:flex;justify-content:space-between;align-items:center;padding:12px 0;border-bottom:1px solid var(--line)}.connection{font-size:12px;color:#45846d}.connection.offline{color:#a86036}.modal-backdrop{position:fixed;inset:0;background:#18344660;z-index:100;display:grid;place-items:center;padding:20px}.modal{background:white;border-radius:12px;width:min(700px,100%);max-height:90vh;overflow:auto;padding:28px;box-shadow:0 20px 80px #163a5433}.modal-head{display:flex;align-items:center;justify-content:space-between;gap:20px;margin-bottom:20px}.modal-head h2{margin:0}.modal .prose{font-size:14px}.modal .canvas-choice{margin:10px 0}#toast{position:fixed;bottom:25px;left:50%;transform:translateX(-50%);padding:13px 20px;border-radius:6px;color:#fff;background:#244d69;z-index:200;display:none;max-width:90vw}#toast.show{display:block}.contact-card{min-height:250px;text-align:center;padding:40px}.contact-card img{width:180px;height:180px;object-fit:contain}.file-preview{max-width:160px;max-height:160px}.section-gap{margin-top:28px}.inline-code{display:flex;gap:10px}.inline-code input{flex:1;min-width:0}.inline-code button{white-space:nowrap}.legal{white-space:pre-line}.block-title{font-size:18px;font-weight:bold}.edit-image{display:flex;gap:12px;align-items:center}.admin-editor{margin-top:20px}.status-line{min-height:20px;font-size:13px;color:var(--muted)}
@media(min-width:1600px){.home{min-height:780px}.home-main{padding-top:80px;padding-bottom:100px}.home-tile{min-height:270px}}
@media(max-width:1000px){.tagline{display:none}.main-nav{gap:14px}.topbar{gap:13px}.home-copy h1{font-size:30px}.home-main{gap:4%;padding:35px 4%}.home-tile{padding:20px 15px;min-height:210px}.home-tile h2{font-size:18px}.split{gap:30px}.board-layout,.board-layout.guest{grid-template-columns:125px minmax(0,1fr)}.board-side{grid-column:1/-1;display:flex;gap:10px;flex-wrap:wrap}.board-side>button,.board-side>.button{width:auto}.board-side .field{width:100%}.board-side textarea{min-height:90px}.material-list{grid-template-columns:1fr}.play-card{gap:12px;padding:12px}.play-card img{width:95px;height:118px}.workspace{grid-template-columns:150px 1fr;gap:15px}}
@media(max-width:700px){h1{font-size:25px}.topbar{min-height:73px;padding:10px 4%;flex-wrap:wrap}.brand b{font-size:23px}.brand img{width:43px;height:43px}.account{margin-left:auto}.account .button{min-width:0;padding:7px 10px}.mobile-menu{display:block;padding:6px 10px}.main-nav{display:none;width:100%;order:4;margin:0;flex-wrap:wrap;padding:12px 0}.topbar.menu-open .main-nav{display:flex}.home-main{display:block}.home-copy{padding:15px 4% 20px}.home-copy h1{font-size:30px}.home-copy .rule{margin:16px 0}.home-copy p{font-size:14px}.home-tiles{gap:15px;padding:5px 4%}.home-tile{min-height:190px}.home-tile h2{font-size:18px}.home-tile p{font-size:11px}.page{padding:24px 5% 35px}.split,.product .split,.creator-layout,.auth-grid,.story-layout{grid-template-columns:1fr;gap:24px;margin:20px 0}.split>img{max-height:300px}.split .copy h1{font-size:28px}.grid,.grid.three{grid-template-columns:1fr}.subnav{gap:7px;margin-bottom:20px}.subnav a{min-width:90px;flex:auto;font-size:12px;padding:8px 10px}.play-grid{grid-template-columns:1fr}.play-card img{width:100px;height:115px}.story-layout .prose{columns:1}.story-layout aside{display:flex;gap:12px}.story-layout aside img{width:calc(50% - 6px);object-fit:contain}.creator-layout img{max-height:420px}.auth-grid{padding:25px 5%}.auth-intro h1{font-size:27px}.auth-form{padding:23px}.activation{padding:24px;margin:20px 0}.workspace{display:block;padding:20px 4%}.sidebar{flex-direction:row;overflow:auto;white-space:nowrap;border:0;border-bottom:1px solid var(--line);padding:0 0 10px;margin-bottom:20px}.board-header{align-items:flex-start;flex-wrap:wrap}.board-layout,.board-layout.guest{display:flex;flex-direction:column}.board-materials{order:2}.board-materials .material-list{display:flex;overflow:auto;max-height:130px}.material{min-width:85px}.board-side{order:3}.board-item.text{font-size:11px}.board-tools{gap:5px}.board-tools button{font-size:11px;padding:7px}.footer{padding:20px 5%;font-size:11px}.actions{gap:8px}.actions>*{flex:1;min-width:110px}.partners .panel img{height:240px}.modal{padding:20px}.steps{font-size:12px;gap:7px}.inline-code{gap:6px}}

@media(min-width:701px){.home{min-height:calc(100vh - 77px)}.home-main{min-height:calc(100vh - 163px);align-items:center}}
.material-list>p{grid-column:1/-1}