#gm-announcements{--blue:#3369e8;--ink:#263248;--muted:#7b8698;--line:#e8ecf2;--bg:#f6f8fb;--game-bg:repeating-linear-gradient(55deg,transparent 0 2px,#ffffff03 2px 4px),#282c2d}
#gm-announcements *{box-sizing:border-box}
#gm-announcements [hidden]{display:none!important}
#gm-announcements{margin:0;background:var(--bg);color:var(--ink);font:13px/1.55 -apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei",sans-serif}
#gm-announcements button,#gm-announcements input,#gm-announcements textarea,#gm-announcements select{font:inherit;color:inherit}
#gm-announcements button{cursor:pointer;display:inline-flex;align-items:center;justify-content:center;gap:5px;padding:6px 11px;min-height:32px;border:1px solid #dce2eb;border-radius:6px;background:white;white-space:nowrap}
#gm-announcements button:hover{background:#f7f9fc;border-color:#bac9e0}
#gm-announcements button:disabled{opacity:.4;cursor:default}
#gm-announcements button.primary{background:var(--blue);color:#fff;border-color:var(--blue)}
#gm-announcements button.danger{color:#bd5757}
#gm-announcements input,#gm-announcements textarea,#gm-announcements select{border:1px solid #dce2eb;border-radius:5px;padding:8px 10px;background:white;min-width:0;max-width:100%}
#gm-announcements input:not([type=file]),#gm-announcements textarea{width:100%}
#gm-announcements input:focus,#gm-announcements textarea:focus{outline:2px solid #3369e830;border-color:var(--blue)}
#gm-announcements :focus-visible{outline:2px solid var(--blue);outline-offset:2px}
#gm-announcements a{color:var(--blue);text-decoration:none}
#gm-announcements h1{font-size:19px;margin:0}
#gm-announcements h2{font-size:14px;margin:0}
#gm-announcements .row{display:flex;align-items:center;gap:9px}
#gm-announcements .wrap{flex-wrap:wrap}
#gm-announcements .muted{color:var(--muted);font-size:11px}
#gm-announcements .text-button{color:var(--blue);border:0;padding:2px 0;min-height:24px;background:transparent}
#gm-announcements .sidebar{position:fixed;inset:0 auto 0 0;width:184px;padding:26px 13px 16px;background:white;border-right:1px solid var(--line);display:flex;flex-direction:column}
#gm-announcements .brand{display:flex;align-items:center;gap:9px;margin:0 8px 35px}
#gm-announcements .brand-mark{display:grid;place-items:center;width:33px;height:36px;border-radius:9px;background:var(--blue);color:#fff;font-size:22px}
#gm-announcements .brand strong{display:block;font-size:16px;letter-spacing:1px}
#gm-announcements .brand small{display:block;color:var(--muted);font-size:10px;letter-spacing:2px}
#gm-announcements .nav-label{font-size:10px;color:#9aa4b3;padding:0 12px 8px}
#gm-announcements .nav-item{color:#697386;padding:11px 13px;margin-bottom:4px;border-radius:6px}
#gm-announcements .nav-item.active{background:#edf3ff;color:var(--blue);font-weight:600;display:flex;justify-content:space-between}
#gm-announcements .nav-item.active span{font-size:9px}
#gm-announcements .sidebar-foot{margin-top:auto;padding:13px 8px 0;border-top:1px solid var(--line);color:var(--muted);font-size:10px;line-height:1.9}
#gm-announcements .sidebar-foot button{display:block;font-size:10px}
#gm-announcements{margin-left:184px;padding:24px;max-width:1790px}
#gm-announcements .topbar{display:flex;align-items:center;gap:14px;margin-bottom:19px}
#gm-announcements .card{background:white;border:1px solid var(--line);border-radius:8px;overflow:hidden}
#gm-announcements .panel-title{padding:13px 16px;border-bottom:1px solid var(--line);display:flex;justify-content:space-between;align-items:center;gap:8px}
#gm-announcements .panel-title>button{font-size:12px}
#gm-announcements .channel-card{margin-bottom:18px}
#gm-announcements .channels{display:flex;gap:24px;padding:0 18px;border-bottom:1px solid var(--line);overflow-x:auto}
#gm-announcements .channel-tab{gap:10px;padding:16px 1px;border:0;border-bottom:2px solid transparent;border-radius:0;background:transparent;min-width:95px;justify-content:flex-start;font-weight:500}
#gm-announcements .channel-tab:hover{background:transparent}
#gm-announcements .channel-tab.active{color:var(--blue);border-bottom-color:var(--blue)}
#gm-announcements .channel-tab .channel-state{font-size:10px;font-weight:400;color:#8c96a5}
#gm-announcements .channel-tab .channel-state.live{color:#27866c}
#gm-announcements .channel-info{display:flex;align-items:center;justify-content:space-between;gap:12px;padding:11px 18px;flex-wrap:wrap}
#gm-announcements .channel-info code{color:#667894;font-size:11px}
#gm-announcements .channel-info button{font-size:11px}
#gm-announcements .editing-grid{display:grid;grid-template-columns:minmax(350px,1fr) minmax(370px,470px);gap:18px;align-items:start}
#gm-announcements .editor-panel{min-width:0}
#gm-announcements .editor-settings{padding:12px 16px;display:flex;align-items:center;gap:12px;font-size:12px;flex-wrap:wrap;border-bottom:1px solid var(--line)}
#gm-announcements .segmented{display:flex;padding:3px;background:#f1f4f8;border-radius:5px}
#gm-announcements .segmented button{border:0;background:transparent;font-size:11px;padding:3px 11px;min-height:26px;color:#7b8698}
#gm-announcements .segmented button.selected{background:white;color:var(--blue);box-shadow:0 1px 4px #29385612}
#gm-announcements .code-toolbar{padding:10px 16px;display:flex;align-items:center;gap:9px;flex-wrap:wrap;background:#fcfdff;border-bottom:1px solid var(--line)}
#gm-announcements .code-toolbar>b{color:#57759c;font:600 11px ui-monospace,monospace}
#gm-announcements .code-toolbar>.row{margin-left:auto;gap:6px}
#gm-announcements .code-toolbar button{font-size:11px;min-height:26px;padding:3px 8px}
#gm-announcements #ann-html-editor{display:block;border:0;border-radius:0;padding:20px;resize:vertical;min-height:350px;height:470px;background:#fcfdff;color:#39536d;font:12px/1.9 ui-monospace,SFMono-Regular,Menlo,Consolas,"PingFang SC",monospace;tab-size:2;overflow:auto;white-space:pre}
#gm-announcements #ann-html-editor:focus{outline:0;box-shadow:inset 0 0 0 2px #3369e82b}
#gm-announcements .editor-footer{padding:13px 15px;border-top:1px solid var(--line);display:flex;align-items:center;justify-content:space-between;gap:10px;flex-wrap:wrap}
#gm-announcements .editor-footer button{font-size:12px}
#gm-announcements .preview-tools{padding:12px 16px;display:flex;justify-content:space-between;align-items:center;gap:10px}
#gm-announcements .preview-stage{padding:16px 22px 20px;background:#eef1f5}
#gm-announcements .game-frame{width:100%;max-width:424px;aspect-ratio:638/852;margin:auto;display:grid;grid-template-rows:16.5% minmax(0,1fr) 17.5%;border:3px solid #f5f4ed;outline:1px solid #d3d2ce;box-shadow:inset 0 0 0 1px #c5c5bc,0 7px 18px #15202820;background:var(--game-bg);color:#f4f4f4}
#gm-announcements .game-title{display:flex;align-items:center;justify-content:center;margin:0 10px;border-bottom:1px solid #ffffff25;font-size:clamp(21px,2.05vw,30px);font-weight:400;letter-spacing:2px}
#gm-announcements .webview-area{min-height:0;padding:0 9px;overflow:hidden}
#gm-announcements .webview-area iframe{width:100%;height:100%;display:block;border:0;background:transparent;color-scheme:normal}
#gm-announcements .game-footer{margin:0 10px;border-top:1px solid #ffffff22;display:flex;align-items:center;justify-content:center}
#gm-announcements .game-confirm{display:flex;align-items:center;justify-content:center;width:35%;height:40%;border:2px solid #fff;background:#424343;font-size:clamp(20px,1.9vw,28px);letter-spacing:2px;line-height:1}
#gm-announcements .game-frame.web-only{display:block;border:0;outline:0;box-shadow:none;background-color:#697179;background-image:conic-gradient(#777f87 25%,transparent 0 50%,#777f87 0 75%,transparent 0);background-size:20px 20px;aspect-ratio:638/580}
#gm-announcements .game-frame.web-only .game-title,#gm-announcements .game-frame.web-only .game-footer{display:none}
#gm-announcements .game-frame.web-only .webview-area{height:100%;padding:0}
#gm-announcements .preview-foot{color:#8e99a8;font-size:10px;text-align:center;margin:12px 16px}
#gm-announcements .preview-bottom{display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:8px;padding:12px 16px;border-top:1px solid var(--line)}
#gm-announcements .preview-bottom button{font-size:11px}
#gm-announcements .badge{display:inline-flex;border-radius:4px;padding:2px 7px;font-size:10px;line-height:1.7;background:#edf7f2;color:#238b69;white-space:nowrap}
#gm-announcements .badge.gray{background:#f0f2f5;color:#7b8698}
#gm-announcements dialog{border:1px solid var(--line);border-radius:10px;padding:0;width:min(640px,calc(100vw - 30px));max-height:88vh;color:var(--ink);box-shadow:0 25px 100px #23314d30}
#gm-announcements dialog::backdrop{background:#18243c50}
#gm-announcements .modal-heading{padding:15px 20px;display:flex;align-items:center;justify-content:space-between;border-bottom:1px solid var(--line)}
#gm-announcements .modal-heading button{font-size:20px;padding:0 6px;min-height:28px;border:0}
#gm-announcements #ann-modal-body{padding:20px}
#gm-announcements label{display:grid;gap:6px;font-size:12px;color:#778398}
#gm-announcements #ann-modal-body>label{margin-bottom:15px}
#gm-announcements .modal-actions{display:flex;justify-content:flex-end;gap:10px;margin-top:20px}
#gm-announcements .hint{padding:11px 13px;border-radius:5px;background:#f6f8fc;font-size:12px;color:#7b8698;margin:12px 0}
#gm-announcements .version-row{padding:14px 0;border-bottom:1px solid var(--line);display:flex;align-items:center;justify-content:space-between;gap:14px}
#gm-announcements .version-row:first-child{padding-top:0}
#gm-announcements .version-row p{font-size:12px;margin:4px 0}
#gm-announcements .version-row .row{flex-shrink:0}
#gm-announcements .version-row button{font-size:11px}
#gm-announcements .audit-row{font-size:11px;color:var(--muted);padding-top:10px}
#gm-announcements .modal-preview{background:var(--game-bg);padding:12px;margin-top:15px;border-radius:5px}
#gm-announcements .history-preview{width:100%;height:330px;border:0;background:transparent;display:block}
#gm-announcements .empty{padding:25px 12px;text-align:center;color:var(--muted);font-size:12px}
#gm-announcements .sr-only{position:absolute;width:1px;height:1px;overflow:hidden;clip-path:inset(50%);white-space:nowrap}
#gm-announcements #ann-toast{position:fixed;left:50%;bottom:28px;transform:translateX(-50%);background:#263248;color:#fff;padding:11px 20px;border-radius:7px;box-shadow:0 5px 25px #0002;z-index:100;max-width:90vw;font-size:12px}
@media(min-width:1600px){#gm-announcements #ann-html-editor{height:530px}
}
@media(max-width:1100px){#gm-announcements .sidebar{width:155px}
#gm-announcements .brand{margin-left:0;margin-right:0}
#gm-announcements .brand strong{font-size:14px}
#gm-announcements{margin-left:155px;padding:18px}
#gm-announcements .editing-grid{grid-template-columns:minmax(0,1fr)}
#gm-announcements .preview-stage{padding:22px}
#gm-announcements .game-title{font-size:28px}
#gm-announcements .game-confirm{font-size:26px}
}
@media(max-width:650px){#gm-announcements .sidebar{position:static;width:auto;padding:10px 15px;flex-direction:row;justify-content:space-between;align-items:center}
#gm-announcements .brand{margin:0}
#gm-announcements .nav-item:not(.active),#gm-announcements .nav-label,#gm-announcements .sidebar-foot{display:none}
#gm-announcements .nav-item.active{margin:0;gap:15px}
#gm-announcements{margin:0;padding:14px}
#gm-announcements .topbar{margin-bottom:13px;gap:10px}
#gm-announcements .topbar .muted{font-size:10px}
#gm-announcements .channels{gap:18px;padding:0 13px}
#gm-announcements .channel-tab{min-width:75px;gap:5px;font-size:12px}
#gm-announcements .channel-tab .channel-state{font-size:9px}
#gm-announcements .channel-info{padding:10px 13px}
#gm-announcements .channel-info>.muted{font-size:10px}
#gm-announcements .editing-grid{gap:14px}
#gm-announcements .code-toolbar{padding:10px 12px;gap:8px}
#gm-announcements .code-toolbar>.muted{font-size:10px}
#gm-announcements .code-toolbar>.row{width:100%;margin-left:0}
#gm-announcements #ann-html-editor{padding:14px;font-size:11px;height:390px}
#gm-announcements .editor-settings{gap:8px;padding:10px 12px}
#gm-announcements .editor-settings>.muted{font-size:10px}
#gm-announcements .editor-footer{padding:12px}
#gm-announcements .editor-footer>.row{margin-left:auto}
#gm-announcements .preview-stage{padding:15px}
#gm-announcements .game-title{font-size:23px}
#gm-announcements .game-confirm{font-size:23px}
#gm-announcements .version-row{flex-wrap:wrap}
#gm-announcements .panel-title{padding:12px}
#gm-announcements .preview-bottom{padding:12px}
}
#gm-announcements #ann-toast{pointer-events:none}
#gm-announcements #ann-html-editor{white-space:pre-wrap;overflow-wrap:anywhere}

#gm-announcements{margin:0;padding:0;max-width:none;background:transparent;font:13px/1.55 -apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei",sans-serif}
#gm-announcements .channel-info>.row{min-width:0;max-width:100%}
#gm-announcements .channel-info code,#gm-announcements #ann-modal-body a{overflow-wrap:anywhere;word-break:break-all}
#gm-announcements .version-row>div:first-child{min-width:0;overflow-wrap:anywhere}
#gm-announcements .panel-title>.row{flex-wrap:wrap}
#gm-announcements .code-toolbar>.row{flex-wrap:wrap}
#gm-announcements .code-toolbar label{display:flex;align-items:center;gap:6px}
#gm-announcements .code-toolbar select{width:auto;min-width:80px}
#gm-announcements .copy-target{display:flex;align-items:center;gap:8px;margin:12px 0}
#gm-announcements .copy-target input{width:auto}

/* A 300 × 400 logical game panel matches the reference image proportions.
   Scale the whole panel, never reflow its WebView to fit the admin column. */
#gm-announcements .preview-viewport{width:100%;max-width:424px;aspect-ratio:300/400;margin:auto;overflow:hidden}
#gm-announcements .preview-viewport.web-only{aspect-ratio:300/273}
#gm-announcements .game-frame{width:300px;height:400px;max-width:none;margin:0;aspect-ratio:auto;transform-origin:top left;border-width:1.5px;grid-template-rows:16.5% minmax(0,1fr) 17.5%}
#gm-announcements .game-title{font-size:17px;letter-spacing:1px;margin:0 5px}
#gm-announcements .webview-area{padding:0 9px}
#gm-announcements .game-footer{margin:0 5px}
#gm-announcements .game-confirm{font-size:16px;letter-spacing:1px;border-width:1px}
#gm-announcements .game-frame.web-only{height:273px;aspect-ratio:auto}

/* Agreement editor shares the announcement layout and isolated preview surface. */
#gm-announcements.policy-admin #policy-html{width:100%;min-height:520px;resize:vertical;border:0;border-radius:0;padding:18px;font:12px/1.7 ui-monospace,SFMono-Regular,Menlo,monospace}
#gm-announcements.policy-admin .policy-preview-stage{padding:18px;background-color:#f3f4f6;background-image:conic-gradient(#dfe3e9 25%,transparent 0 50%,#dfe3e9 0 75%,transparent 0);background-size:20px 20px}
#gm-announcements.policy-admin iframe{display:block;border:0;width:100%;height:560px;background:transparent}
#gm-announcements.policy-admin .policy-message{color:#9b5320;overflow-wrap:anywhere;min-height:20px}
#gm-announcements.policy-admin .panel-title{flex-wrap:wrap;gap:8px}
#gm-announcements.policy-admin .topbar{flex-wrap:wrap}
#gm-announcements.policy-admin #policy-types{flex-wrap:wrap}
#gm-announcements.policy-admin #policy-url{overflow-wrap:anywhere}