:root{--navy:#12284b;--navy-2:#1d3a66;--accent:#2563eb;--bg:#f4f6fa;--card:#fff;--line:#dde3ec;--text:#1c2733;--muted:#66788c;--danger:#c0392b;--ok:#1e7d46;--radius:12px}*{box-sizing:border-box}html,body{margin:0;padding:0}body{background:var(--bg);color:var(--text);font-family:-apple-system,BlinkMacSystemFont,Hiragino Kaku Gothic ProN,Hiragino Sans,Noto Sans JP,sans-serif;font-size:15px;line-height:1.6}a{color:var(--accent);text-decoration:none}a:hover{text-decoration:underline}body{overflow-x:clip}img,video,svg{max-width:100%;height:auto}.shell{min-height:100vh;display:flex}.sidebar{background:var(--navy);color:#fff;flex-direction:column;flex-shrink:0;width:232px;height:100vh;padding:20px 16px;display:flex;position:sticky;top:0}.brand{letter-spacing:.06em;font-size:20px;font-weight:800}.brand-sub{color:#a9bcd8;margin-bottom:24px;font-size:11px}.nav{flex-direction:column;gap:4px;display:flex}.nav a{color:#e6edf7;border-radius:8px;padding:9px 12px;font-weight:600}.nav a:hover{background:var(--navy-2);text-decoration:none}.side-user{border-top:1px solid #2c4a75;margin-top:auto;padding-top:14px}.side-user-name{color:inherit;font-weight:700;text-decoration:none;display:inline-block}a.side-user-name:hover{text-decoration:underline}.side-user-meta{color:#a9bcd8;margin-bottom:8px;font-size:12px}.main{flex:1;min-width:0;max-width:960px;padding:28px 32px}.auth-main{justify-content:center;align-items:center;min-height:100vh;padding:24px;display:flex}.page-title{margin:0 0 4px;font-size:22px;font-weight:800}.page-sub{color:var(--muted);margin:0 0 20px;font-size:13px}.card{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);margin-bottom:14px;padding:18px 20px}.card h2{margin:0 0 10px;font-size:16px}.list{flex-direction:column;gap:10px;display:flex}.item{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);color:var(--text);padding:14px 18px;display:block}.item:hover{border-color:var(--accent);text-decoration:none}.item-title{font-weight:700}.item-meta{color:var(--muted);font-size:12px}.badge{color:var(--accent);background:#e8eefc;border-radius:999px;margin-left:8px;padding:1px 8px;font-size:11px;font-weight:700;display:inline-block}.badge-ok{color:var(--ok);background:#e2f3e8}.badge-pin{color:#a05a00;background:#fdeeda}.badge-alert{color:#fff;background:#e5484d}.nav-badge{color:#fff;text-align:center;vertical-align:2px;background:#e5484d;border-radius:999px;min-width:20px;margin-left:8px;padding:1px 6px;font-size:11px;font-weight:800;display:inline-block}.nav-badge[hidden]{display:none}@keyframes badgepop{0%{transform:scale(1)}40%{transform:scale(1.35)}to{transform:scale(1)}}.nav-badge.pop{animation:.45s badgepop}.btn{background:var(--accent);color:#fff;cursor:pointer;border:none;border-radius:9px;padding:9px 18px;font-size:14px;font-weight:700;display:inline-block}.btn:hover{opacity:.9}.btn:disabled{opacity:.55;cursor:wait}.btn-ghost{color:#dbe6f5;background:0 0;border:1px solid #3a5a8a}.btn-light{color:var(--navy);background:#eef2f9}.btn-sm{padding:5px 12px;font-size:12px}.btn-ok{background:var(--ok)}input[type=text],input[type=email],input[type=password],input[type=date],input[type=number],input[type=file],textarea,select{border:1px solid var(--line);background:#fff;border-radius:9px;width:100%;padding:10px 12px;font-family:inherit;font-size:14px}label{margin:12px 0 6px;font-size:13px;font-weight:700;display:block}label:first-child{margin-top:0}.auth-card{width:100%;max-width:400px}.auth-logo{text-align:center;color:var(--navy);letter-spacing:.06em;font-size:26px;font-weight:800}.auth-sub{text-align:center;color:var(--muted);margin-bottom:18px;font-size:12px}.error{color:var(--danger);background:#fdecea;border:1px solid #f3c1bb;border-radius:9px;margin-bottom:12px;padding:9px 12px;font-size:13px}.notice{color:var(--ok);background:#e2f3e8;border:1px solid #bfe4cd;border-radius:9px;margin-bottom:12px;padding:9px 12px;font-size:13px}.row{align-items:center;gap:10px;display:flex}.spread{justify-content:space-between}.body-text{white-space:pre-wrap;overflow-wrap:anywhere}.item-title,.item-meta{overflow-wrap:anywhere}.chat{flex-direction:column;gap:12px;margin-bottom:16px;display:flex}.msg-row{align-items:flex-start;gap:8px;display:flex}.msg-row.mine{justify-content:flex-end}.msg-avatar{background:var(--navy-2);color:#fff;border-radius:50%;flex:none;justify-content:center;align-items:center;width:36px;height:36px;margin-top:2px;font-size:15px;font-weight:800;display:flex}.msg-avatar-img{object-fit:cover;border:1px solid var(--line);border-radius:50%;flex:none;width:36px;height:36px;margin-top:2px}.side-avatar{object-fit:cover;vertical-align:-9px;border-radius:50%;width:30px;height:30px;margin-right:8px}.avatar-edit{flex-wrap:wrap;align-items:flex-start;gap:16px;display:flex}.profile-avatar{object-fit:cover;border:1px solid var(--line);border-radius:50%;flex:none;width:96px;height:96px}.profile-avatar-initial{background:var(--navy-2);color:#fff;justify-content:center;align-items:center;font-size:38px;font-weight:800;display:flex}.avatar-edit-forms{flex:1;min-width:200px}.msg-col{min-width:0;max-width:78%}.msg-name{color:var(--muted);margin:0 0 3px 2px;font-size:12px}.msg-line{align-items:flex-end;gap:6px;display:flex}.msg-row.mine .msg-line{flex-direction:row-reverse}.msg-time{color:var(--muted);white-space:nowrap;padding-bottom:2px;font-size:10px}.msg-del{text-align:right;margin-top:4px}.msg-del .btn{padding:2px 8px;font-size:11px}.date-divider{text-align:center;margin:8px 0 2px}.date-divider span{color:var(--navy-2);background:#dde4ef;border-radius:999px;padding:3px 12px;font-size:11px;font-weight:700}.compose-bar{z-index:20;background:var(--bg);padding:10px 0 calc(10px + env(safe-area-inset-bottom));border-top:1px solid var(--line);margin-top:6px;position:sticky;bottom:0}.compose-row{align-items:center;gap:8px;display:flex}.compose-input{flex:1}.attach-btn{border:1px solid var(--line);width:42px;height:42px;color:var(--navy-2);cursor:pointer;background:#fff;border-radius:50%;flex:none;justify-content:center;align-items:center;margin:0;font-size:22px;font-weight:700;display:flex}.file-chip{color:var(--navy-2);background:#e8eefc;border-radius:999px;align-items:center;gap:8px;max-width:100%;margin-bottom:8px;padding:4px 6px 4px 12px;font-size:12px;display:inline-flex}.file-chip-name{text-overflow:ellipsis;white-space:nowrap;overflow:hidden}.file-chip-x{cursor:pointer;color:var(--navy-2);background:0 0;border:none;padding:0 4px;font-size:16px}.msg-stamp{padding:0 2px;font-size:54px;line-height:1.15}.stamp-panel{border:1px solid var(--line);background:#fff;border-radius:14px;grid-template-columns:repeat(6,1fr);gap:4px;margin-bottom:10px;padding:10px;display:grid}.stamp-btn{cursor:pointer;background:0 0;border:none;border-radius:12px;padding:6px 0;font-size:30px;line-height:1.2}.stamp-btn:hover{background:#eef2fa}.stamp-toggle{border:1px solid var(--line);cursor:pointer;background:#fff;border-radius:50%;flex:none;justify-content:center;align-items:center;width:42px;height:42px;font-size:20px;display:flex}.stamp-toggle.active{border-color:var(--navy-2);background:#e8eefc}.room-bar{z-index:40;background:var(--bg);border-bottom:1px solid var(--line);align-items:center;gap:10px;margin-bottom:12px;padding:8px 0 10px;display:flex;position:sticky;top:0}.room-back{border:1px solid var(--line);width:38px;height:38px;color:var(--navy-2);background:#fff;border-radius:50%;flex:none;justify-content:center;align-items:center;font-size:18px;font-weight:700;text-decoration:none;display:flex}.room-bar-main{flex:1;min-width:0}.room-name{color:var(--navy);font-size:17px;font-weight:800;line-height:1.3}.room-meta{color:var(--muted);text-overflow:ellipsis;white-space:nowrap;font-size:11px;overflow:hidden}.room-album{border:1px solid var(--line);color:var(--navy-2);background:#fff;border-radius:999px;flex:none;padding:7px 12px;font-size:13px;font-weight:700;text-decoration:none}.back-link{color:var(--navy-2);margin-bottom:8px;font-size:13px;font-weight:700;text-decoration:none;display:inline-block}.album-grid{grid-template-columns:repeat(3,1fr);gap:14px 8px;display:grid}.album-cell{margin:0;position:relative}.album-cell a{display:block;position:relative}.album-thumb{aspect-ratio:1;object-fit:cover;border:1px solid var(--line);background:#e8ecf3;border-radius:10px;width:100%;display:block}.album-play{color:#fff;background:#0a1428a6;border-radius:999px;padding:2px 8px;font-size:11px;position:absolute;top:6px;right:6px}.album-cap{color:var(--muted);text-align:center;margin-top:4px;font-size:11px}.talk-item{align-items:center;gap:12px;display:flex}.talk-avatar{background:var(--navy-2);color:#fff;border-radius:50%;flex:none;justify-content:center;align-items:center;width:46px;height:46px;font-size:19px;font-weight:800;display:flex}.talk-item-main{flex-direction:column;flex:1;gap:2px;min-width:0;display:flex}.talk-item-top{justify-content:space-between;align-items:baseline;gap:8px;display:flex}.talk-time{color:var(--muted);white-space:nowrap;font-size:11px}.talk-preview{color:var(--muted);text-overflow:ellipsis;white-space:nowrap;font-size:13px;overflow:hidden}.talk-unread-name{font-weight:800}.talk-count{color:#fff;background:#e5484d;border-radius:999px;flex:none;justify-content:center;align-items:center;min-width:22px;height:22px;padding:0 6px;font-size:12px;font-weight:800;display:flex}.talk-banner{color:#b3261e;background:#fdecec;border:1px solid #f5c6c2;border-radius:12px;align-items:center;gap:8px;margin-bottom:18px;padding:12px 14px;font-weight:700;text-decoration:none;display:flex}.talk-banner-arrow{margin-left:auto}.talk-toast{left:12px;right:12px;bottom:calc(12px + env(safe-area-inset-bottom));z-index:60;background:var(--navy);color:#fff;cursor:pointer;border-radius:14px;align-items:center;gap:10px;padding:12px 14px;animation:.25s toast-in;display:flex;position:fixed;box-shadow:0 8px 24px #0a142859}@keyframes toast-in{0%{opacity:0;transform:translateY(16px)}to{opacity:1;transform:translateY(0)}}.talk-toast-main{flex-direction:column;flex:1;min-width:0;display:flex}.talk-toast-group{opacity:.85;font-size:12px;font-weight:700}.talk-toast-body{text-overflow:ellipsis;white-space:nowrap;font-size:14px;overflow:hidden}.talk-toast-x{color:#fff;cursor:pointer;background:0 0;border:none;padding:2px 6px;font-size:20px}@media (min-width:721px){.talk-toast{width:380px;left:auto}}.unread-divider{color:#c0362c;align-items:center;gap:10px;margin:6px 2px;scroll-margin-top:76px;font-size:12px;font-weight:700;display:flex}.unread-divider:before,.unread-divider:after{content:"";background:#f0b8b5;flex:1;height:1px}.msg{border:1px solid var(--line);background:#fff;border-radius:6px 16px 16px;padding:9px 13px}.msg-media{object-fit:cover;border-radius:10px;width:260px;max-width:100%;max-height:340px;margin-top:6px;display:block}video.msg-media{object-fit:contain;background:#000}.msg-link{color:#2563eb;overflow-wrap:anywhere;text-decoration:underline}.msg-mine{background:var(--navy);border-color:var(--navy);color:#fff;border-radius:16px 6px 16px 16px}.msg-mine .msg-link{color:#a9c6ff}.msg-meta{color:var(--muted);margin-bottom:2px;font-size:11px}table{border-collapse:collapse;width:100%;font-size:14px}th,td{text-align:left;border-bottom:1px solid var(--line);padding:8px 10px}th{color:var(--muted);font-size:12px}.empty{color:var(--muted);text-align:center;padding:28px 0}.checkline{align-items:center;gap:8px;font-size:14px;font-weight:400;display:flex}.checkline input{width:auto}@media (max-width:720px){.shell{flex-direction:column}.sidebar{z-index:50;flex-flow:wrap;align-items:center;gap:6px 12px;width:100%;height:auto;padding:10px 12px;position:sticky;top:0}.brand{font-size:17px}.brand-sub{display:none}.nav{-webkit-overflow-scrolling:touch;scrollbar-width:none;flex-flow:row;order:3;gap:6px;width:100%;padding-bottom:4px;overflow-x:auto}.nav::-webkit-scrollbar{display:none}.nav a{white-space:nowrap;background:var(--navy-2);border-radius:999px;padding:9px 14px;font-size:14px}.side-user{border-top:none;order:2;align-items:center;gap:10px;margin:0 0 0 auto;padding-top:0;display:flex}.side-user-name{font-size:13px}.side-user-meta{display:none}.main{width:100%;padding:18px 14px 36px}.page-title{font-size:19px}.room-bar{top:96px}.unread-divider{scroll-margin-top:168px}.card{padding:14px}.item{padding:12px 14px}.row{flex-wrap:wrap}.msg{max-width:88%}input[type=text],input[type=email],input[type=password],input[type=date],input[type=number],input[type=file],textarea,select{font-size:16px}.btn{padding:11px 18px}table{white-space:nowrap;-webkit-overflow-scrolling:touch;display:block;overflow-x:auto}th,td{padding:8px}}