:root{--bg:#edf1f5;--ink:#333;--muted:#9299a2;--line:#e5e8ec;--green:#337bd7;--lime:#dceafb}body{font-family:Arial,'Noto Sans JP',sans-serif;background:var(--bg)}header{max-width:none;background:#fff;height:72px;padding:0 max(24px,calc((100vw - 1180px)/2));border-bottom:1px solid #dce2ea}.mark{color:#287bdc;font-size:27px;letter-spacing:0}.mark span{font-size:10px;letter-spacing:1px}.brand-sub{border:0;color:#7a8796;font-size:10px;padding-left:0}.pill{border-color:#d7e7fb;color:#337bd7;background:#f7faff}.notice{background:#f9fbfd;border-bottom:1px solid #e3e8ee;color:#778694;font-size:10px;padding:8px 20px}main{max-width:1180px;padding:0;margin:22px auto;background:white;border:1px solid #dce2e9}.intro{min-height:0;padding:0;border-bottom:0;overflow:visible}.forum-banner{height:94px;background:linear-gradient(110deg,#e8f1fc,#d6e8fd 65%,#edf5ff);display:flex;align-items:center;justify-content:space-between;padding:0 32px;color:#7598c8;letter-spacing:4px;font-size:23px;font-weight:700}.forum-banner span:last-child{font-size:12px;letter-spacing:3px;font-weight:400}.forum-identity{display:flex;align-items:center;gap:22px;padding:22px 30px;background:#f8fbff;min-height:116px}.forum-icon{width:90px;height:90px;flex-shrink:0;margin-top:-54px;background:#3c83da;color:white;border:5px solid white;box-shadow:0 1px 4px #9babc555;display:flex;flex-direction:column;align-items:center;justify-content:center;font-size:28px;font-weight:700}.forum-icon span{font-size:10px;letter-spacing:3px}.forum-description{flex:1}.forum-description .eyebrow{font-size:10px;letter-spacing:0;color:#8897a8}h1{font-size:24px;letter-spacing:0;margin:8px 0;font-weight:600;line-height:1.3}h1 span{font-size:10px;color:#7693b6;font-weight:400;border:1px solid #c5d8ef;padding:3px 5px;vertical-align:middle}.intro p{margin:0;font-size:11px;color:#84909c}.intro .primary{margin:0}.primary{border-radius:3px;padding:10px 18px;font-size:12px;background:#347ed9}.layout{grid-template-columns:150px minmax(0,1fr) 215px;gap:0;padding:0;min-height:540px;border-top:1px solid #dce3ec}.layout>aside:first-child{padding:22px 12px;background:#fafbfc;border-right:1px solid var(--line)}aside>.eyebrow{letter-spacing:0;font-size:11px;padding:0 8px;color:#768496}nav{margin:15px 0 24px}nav button{padding:11px 8px;font-size:11px;gap:7px;border-radius:2px}nav button.active{background:#e5effd;color:#2876ce}nav button span{font-size:14px}.side-note{padding:14px 8px}.side-note>span{font-size:17px;color:#5b8cc8}.side-note h3{font-size:11px}.side-note p{font-size:10px}.side-link{font-size:9px;margin:20px 7px}.feed{min-width:0}.feed-heading{padding:18px 22px 0}.feed-heading h2{font-size:14px;margin:0 0 15px}.toolbar{padding:0 22px;gap:8px;margin:0;background:#fafcff;align-items:center}.tabs{gap:22px;padding-top:12px}.tabs button{font-size:12px;padding-bottom:12px}.tabs button.active{color:#2876ce;border-color:#2876ce}.search input{font-size:10px}.post{border:0;border-bottom:1px solid var(--line);border-radius:0;margin:0;background:#fff;padding:20px}.forum-row{display:grid;grid-template-columns:43px minmax(0,1fr) 112px;gap:16px}.forum-row:hover{background:#fbfcff}.reply-count{background:#edf0f4;border:1px solid #e0e5ec;color:#74849a;border-radius:3px;width:42px;height:27px;font-size:12px;margin-top:2px}.post h3{display:flex;gap:8px;align-items:baseline;font-size:14px;font-weight:400;margin:0 0 9px;line-height:1.6}.post h3>button{color:#286ec0}.post h3>button:hover{text-decoration:underline}.thread-tag{font-size:9px;color:#7c96b6;background:#f0f5fc;border:1px solid #dce7f5;padding:1px 4px;white-space:nowrap}.post-text{font-size:11px;color:#8b929a;line-height:1.8}.thread-author{display:flex;flex-direction:column;gap:10px;color:#879bb4;font-size:10px;padding-top:4px;overflow-wrap:anywhere}.thread-author small{font-size:9px;color:#a0a7b0}.post-bottom{font-size:9px;gap:16px;margin-top:10px}.post-bottom button{color:#8598b0}.post-bottom button.on{color:#2674d0}.sample{font-size:9px}.post-bottom .save{margin-left:0}.media-grid{display:flex;flex-wrap:wrap;gap:7px;margin-top:10px}.media-grid img,.media-grid video{height:100px;width:145px;max-width:100%;object-fit:cover;border-radius:2px;background:#eef2f6}.full-post .media-grid img,.full-post .media-grid video{height:auto;max-height:400px;width:100%;object-fit:contain}.full-post .thread-author{flex-direction:row;gap:15px;margin-top:16px}.full-post h3{font-size:19px}.full-post .post-text{font-size:13px;color:#555}.right{padding:22px 18px;background:#f6f8fb;border-left:1px solid var(--line)}.right-head{font-size:11px;font-weight:600}.event-mini{padding:16px 0}.event-mini h3{font-size:12px}.event-mini span{color:#598ac7}.join-note{background:#eaf1fa;border-radius:0;padding:15px;margin-top:22px}.join-note .eyebrow{letter-spacing:1px;font-size:8px;color:#6991c5}.join-note h3{font-size:14px}.join-note p{font-size:10px}.tiny{color:#98a1ad}footer{border:0;max-width:1180px;margin:auto;padding:0 0 25px;color:#8c98a8}.calendar-group{margin:0;padding:12px 22px;background:#f0f5fb;border-bottom:1px solid var(--line);color:#577da9;font-size:12px}dialog{border-radius:5px;background:white}.upload{border-color:#a6c2e5;color:#397bc8;border-radius:3px}.event-info{color:#5285bd}#toast{background:#345676}.empty{font-size:12px}.tabs button:focus-visible{outline-offset:0}@media(max-width:1100px){main{margin:15px 20px}.layout{grid-template-columns:140px minmax(0,1fr) 190px}.right{display:block;padding:20px 12px}.forum-row{grid-template-columns:38px minmax(0,1fr) 95px;gap:11px}.reply-count{width:38px}.forum-banner{font-size:20px}footer{padding:0 20px 25px}}@media(max-width:850px){.layout{grid-template-columns:140px minmax(0,1fr)}.right{display:none}}@media(max-width:760px){header{height:65px;padding:0 16px}.mark{font-size:23px}.notice{padding:8px 16px}.notice span{margin:0}main{margin:12px 10px;padding:0}.forum-banner{height:65px;padding:0 15px;font-size:15px;letter-spacing:2px}.forum-banner span:last-child{display:none}.forum-identity{padding:16px 13px;gap:12px;flex-wrap:wrap}.forum-icon{width:62px;height:62px;font-size:21px;margin-top:-31px;border-width:3px}.forum-description .eyebrow{font-size:8px}h1{font-size:17px;margin:6px 0}.intro p{font-size:9px}.intro .primary{margin-left:74px;font-size:11px;padding:8px 13px}.layout{display:block;padding:0}.layout>aside:first-child{padding:8px;background:#f7f9fc;border-right:0;border-bottom:1px solid var(--line)}nav{margin:0;padding:0;gap:4px}nav button{border:0;font-size:10px;padding:8px 7px}.feed-heading{padding:14px 13px 0}.toolbar{padding:0 13px}.tabs{gap:15px}.tabs button{font-size:11px}.search{margin:0}.forum-row{grid-template-columns:32px minmax(0,1fr);gap:10px;padding:15px 12px}.reply-count{width:32px;height:24px;font-size:11px}.thread-author{grid-column:2;flex-direction:row;gap:12px;font-size:9px;padding:0;margin-top:-3px}.post h3{font-size:13px;gap:5px;flex-wrap:wrap}.thread-tag{font-size:8px}.post-text{font-size:10px}.post-bottom{gap:12px;font-size:9px}.media-grid img,.media-grid video{width:120px;height:85px}.full-post{padding:13px}.full-post h3{font-size:17px}.full-post .thread-author{flex-wrap:wrap}footer{font-size:9px;padding:0 14px 20px}}