:root{--bg:#f3f5f7;--panel:#fff;--ink:#17212b;--muted:#687483;--line:#dfe4e9;--nav:#17212b;--nav2:#24313d;--accent:#087f5b;--accent-hover:#066b4d;--danger:#c83c3c}*{box-sizing:border-box}.draft-button{height:36px;border:1px solid var(--line);border-radius:5px;background:#fff;color:var(--ink);padding:0 14px}body{margin:0;font:14px/1.5 "Segoe UI","Microsoft YaHei",Arial,sans-serif;color:var(--ink);background:var(--bg);letter-spacing:0}button,input,textarea,select{font:inherit;letter-spacing:0}button{cursor:pointer}.login{min-height:100vh;display:grid;place-items:center;padding:20px;background:#edf1f4}.login-panel{width:min(390px,100%);background:#fff;border:1px solid var(--line);border-radius:7px;padding:28px;box-shadow:0 16px 40px #17212b1c}.product{display:flex;align-items:center;gap:11px}.product>div{display:flex;flex-direction:column;min-width:0}.product strong{font-size:16px}.product small{color:#8b98a5;overflow:hidden;text-overflow:ellipsis}.logo{width:34px;height:34px;flex:0 0 34px;background:#0ca678;color:white;display:grid;place-items:center;border-radius:6px;font-size:18px;font-weight:800}.login h1{font-size:22px;margin:28px 0 20px}.login label{display:block;font-weight:650;margin:14px 0}.login input{display:block;width:100%;height:42px;margin-top:6px;padding:0 11px;border:1px solid #cfd6dc;border-radius:4px}.login input:focus,.compose-window input:focus,.compose-window textarea:focus{outline:0;border-color:var(--accent);box-shadow:0 0 0 3px #0ca6781c}.primary{border:0;border-radius:5px;background:var(--accent);color:#fff;font-weight:700}.primary:hover{background:var(--accent-hover)}.login .primary{height:42px;width:100%;margin-top:4px}.login a{display:block;text-align:center;color:var(--muted);margin-top:17px;text-decoration:none}.form-error{min-height:21px;color:var(--danger);margin:0}.mail-app{height:100vh;display:grid;grid-template-columns:220px minmax(330px,410px) minmax(420px,1fr);overflow:hidden}.mail-app[hidden],.login[hidden],[hidden]{display:none!important}.folder-pane{background:var(--nav);color:#dce3ea;padding:18px 12px;display:flex;flex-direction:column;min-height:0}.folder-pane .product{padding:0 9px 18px;border-bottom:1px solid #33404c}.compose{height:42px;margin:18px 8px 12px}.folder-pane nav{overflow:auto;display:flex;flex-direction:column;gap:3px}.folder{width:100%;border:0;background:transparent;color:#b8c2cc;border-radius:5px;padding:10px 12px;text-align:left;display:flex;align-items:center;gap:9px}.folder:hover,.folder.active{background:var(--nav2);color:#fff}.folder.active{box-shadow:inset 3px 0 #0ca678}.folder .folder-icon{width:19px;text-align:center}.folder .count{margin-left:auto;font-size:11px;background:#334351;padding:1px 6px;border-radius:9px}.signout{margin-top:auto;border:0;border-top:1px solid #33404c;background:transparent;color:#93a1ae;padding:15px 8px 0;text-align:left}.message-pane{background:#fff;border-right:1px solid var(--line);min-width:0;display:flex;flex-direction:column}.message-pane>header{height:76px;flex:0 0 76px;padding:0 14px;border-bottom:1px solid var(--line);display:flex;align-items:center;gap:10px}.message-pane h1{font-size:18px;margin:0}.message-pane header small{display:block;color:var(--muted);white-space:nowrap}.search{margin-left:auto;width:min(185px,45%);height:36px;border:1px solid var(--line);border-radius:5px;display:flex;align-items:center;padding:0 8px}.search input{width:100%;border:0;outline:0;min-width:0;padding:0 5px}.icon{width:34px;height:34px;border:0;background:transparent;border-radius:4px;color:#5f6c79;font-size:18px}.icon:hover{background:#edf1f4}.message-list{overflow:auto;flex:1}.message-row{width:100%;height:104px;border:0;border-bottom:1px solid #edf0f2;background:#fff;padding:13px 15px;text-align:left;display:grid;grid-template-columns:1fr auto;grid-template-rows:auto auto 1fr;gap:2px 8px;position:relative}.message-row:hover,.message-row.active{background:#f2f8f6}.message-row.active:before{content:"";position:absolute;inset:0 auto 0 0;width:3px;background:var(--accent)}.message-row.unread .from,.message-row.unread .subject{font-weight:750}.from,.subject,.snippet{overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.date{color:var(--muted);font-size:11px}.subject{grid-column:1/3}.snippet{grid-column:1/3;color:var(--muted);font-size:12px}.star{color:#d99a15}.load-more{border:0;border-top:1px solid var(--line);background:#f8fafb;height:42px;color:var(--accent)}.reader{background:#fff;min-width:0;overflow:auto}.reader-empty{height:100%;display:grid;place-content:center;text-align:center;color:#98a3ad;gap:8px}.reader-empty span{font-size:40px}.reader-toolbar{height:56px;border-bottom:1px solid var(--line);padding:0 22px;display:flex;align-items:center;gap:7px;position:sticky;top:0;background:#fff;z-index:2}.tool,.reader-toolbar select{height:32px;border:1px solid var(--line);border-radius:4px;background:#fff;padding:0 9px;color:#53606c}.tool.danger{color:var(--danger);margin-left:auto}.message-head{padding:24px 30px 20px;border-bottom:1px solid var(--line)}.message-head h1{font-size:22px;line-height:1.35;margin:0 0 22px;overflow-wrap:anywhere}.sender{display:grid;grid-template-columns:38px 1fr auto;gap:11px;align-items:center}.sender>div{display:flex;flex-direction:column;min-width:0}.sender small{color:var(--muted);overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.sender time{color:var(--muted);font-size:12px}.avatar{width:38px;height:38px;border-radius:50%;display:grid;place-items:center;background:#e1f4ed;color:var(--accent);font-weight:800}.message-body{padding:26px 30px}.message-body pre{font:14px/1.75 "Segoe UI","Microsoft YaHei",Arial,sans-serif;white-space:pre-wrap;overflow-wrap:anywhere;margin:0}.message-body iframe{width:100%;border:0;min-height:420px}.attachments{margin-top:25px;display:flex;flex-wrap:wrap;gap:8px}.attachment{display:block;text-decoration:none;color:var(--ink);border:1px solid var(--line);border-radius:5px;padding:9px 11px;background:#f8fafb}.attachment small{display:block;color:var(--muted)}.compose-window{position:fixed;right:22px;bottom:0;width:min(560px,calc(100vw - 44px));background:#fff;border:1px solid #cfd6dc;border-radius:7px 7px 0 0;box-shadow:0 10px 35px #17212b38;z-index:20}.compose-window header{height:46px;background:var(--nav);color:#fff;display:flex;align-items:center;padding:0 13px;border-radius:6px 6px 0 0}.compose-window header .icon{margin-left:auto;color:#fff}.compose-window label{height:42px;border-bottom:1px solid var(--line);display:flex;align-items:center;padding:0 13px}.compose-window label span{width:55px;color:var(--muted)}.compose-window input{flex:1;border:0;outline:0;height:34px}.compose-window textarea{display:block;width:100%;height:260px;border:0;padding:14px;resize:vertical;outline:0}.compose-window footer{height:56px;border-top:1px solid var(--line);display:flex;align-items:center;gap:12px;padding:0 13px}.compose-window footer .primary{height:36px;padding:0 20px}.compose-window footer span{color:var(--muted)}.toast{position:fixed;right:22px;bottom:22px;background:#17212b;color:#fff;padding:10px 14px;border-radius:5px;opacity:0;transform:translateY(20px);pointer-events:none;transition:.2s;z-index:30}.toast.show{opacity:1;transform:none}.mobile-only{display:none}@media(max-width:980px){.mail-app{grid-template-columns:200px 340px 1fr}}@media(max-width:760px){.mail-app{display:block;position:relative}.folder-pane,.message-pane,.reader{position:absolute;inset:0}.folder-pane{z-index:4;transform:translateX(-100%);width:min(300px,85vw);transition:.2s;box-shadow:8px 0 30px #0003}.mail-app.folders-open .folder-pane{transform:none}.message-pane{z-index:1}.reader{z-index:2;display:none}.mail-app.reading .reader{display:block}.mobile-only{display:inline-grid;place-items:center}.message-pane>header{padding:0 10px}.search{width:auto;flex:1}.reader-toolbar{padding:0 10px}.message-head,.message-body{padding:18px 16px}.sender{grid-template-columns:38px 1fr}.sender time{grid-column:2}.compose-window{right:0;width:100%;border-radius:0}.compose-window textarea{height:calc(100vh - 280px)}}