:root{--nav:#163c53;--accent:#087f8c;--ink:#173042;--muted:#617481;--line:#dce5eb;--bg:#f3f6f8;--amber:#a36515;--soft:#eaf4f4;--red:#a93236;font-family:"Microsoft JhengHei UI","Microsoft JhengHei","PingFang TC",sans-serif;font-size:15px;color:var(--ink);background:var(--bg);font-synthesis:none}
*{box-sizing:border-box}body{margin:0}button,input,textarea,select{font:inherit}button,a,input,textarea,select{touch-action:manipulation}button{cursor:pointer}button:disabled{cursor:not-allowed;opacity:.48}button:focus-visible,a:focus-visible{outline:3px solid #50becb;outline-offset:3px}a{color:var(--accent)}button{border:0}h1,h2,h3,p{margin-top:0}h1{font-size:28px;line-height:1.35;margin-bottom:10px;letter-spacing:.02em}h2{font-size:19px;margin-bottom:16px}h3{font-size:16px;margin-bottom:8px}p{line-height:1.7}.muted,small{color:var(--muted)}small{font-size:12px}.sidebar{background:var(--nav);color:#fff;width:228px;position:fixed;inset:0 auto 0 0;display:flex;flex-direction:column;padding:30px 18px}.brand{color:#fff;text-decoration:none;display:flex;align-items:center;gap:12px;font-size:20px;font-weight:700;margin:0 10px 40px}.brand-mark{height:42px;width:42px;display:grid;place-items:center;border:1px solid #7bb3c5;border-radius:6px;color:#bde5e6;font-size:23px}.brand-sub{display:block;font-size:11px;color:#b7ccd7;font-weight:400;margin-top:5px;letter-spacing:.08em}.sidebar nav{display:grid;gap:8px}.nav-button{display:flex;gap:15px;align-items:center;text-align:left;padding:14px 18px;border-radius:7px;background:none;color:#d0e0e9;white-space:nowrap}.nav-button span{font-size:20px;width:22px}.nav-button:hover{background:#ffffff0d}.nav-button.active{background:#2a5267;color:#fff;box-shadow:inset 3px 0 #77d2d2}.sidebar-bottom{margin-top:auto;padding:20px 9px 0;border-top:1px solid #ffffff20;font-size:12px;color:#c7dce7;line-height:2}.sidebar-bottom small{display:block;color:#9fbaca;margin-left:13px}.connection-dot{display:inline-block;width:6px;height:6px;border-radius:50%;background:#deb981;margin-right:4px}.workspace{margin-left:228px}.topbar{height:68px;border-bottom:1px solid var(--line);display:flex;align-items:center;justify-content:space-between;padding:0 42px;background:#fff;font-size:12px;color:var(--muted)}.topbar #hk-date{margin-left:12px}.mode{display:flex;align-items:center;gap:7px}.mode i{height:7px;width:7px;background:#ba8232;border-radius:50%}main{padding:34px 42px;max-width:1480px;margin:auto;min-height:calc(100vh - 117px)}.page-head{display:flex;align-items:flex-start;justify-content:space-between;gap:20px;margin-bottom:25px}.page-head p{margin:0;color:var(--muted);max-width:650px}.btn{display:inline-flex;justify-content:center;align-items:center;gap:7px;padding:10px 17px;border-radius:5px;border:1px solid var(--line);color:var(--ink);background:#fff;font-weight:600;text-decoration:none;font-size:14px;min-height:40px;white-space:nowrap}.btn:hover{border-color:#84aebd;background:#f7fbfc}.btn.primary{background:var(--accent);border-color:var(--accent);color:white}.btn.primary:hover{background:#096e78}.btn.quiet{border-color:transparent;background:transparent;color:var(--accent)}.btn.danger{color:var(--red)}.actions{display:flex;gap:10px;align-items:center;flex-wrap:wrap}.panel{background:white;border:1px solid var(--line);border-radius:9px;padding:24px}.panel-heading{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:20px}.panel-heading h2{margin:0}.intro{background:#e6f0f4;border-left:4px solid var(--nav);padding:24px 28px;margin-bottom:26px;display:flex;justify-content:space-between;align-items:center;gap:24px}.intro h2{font-size:23px;margin:0 0 8px}.intro p{margin:0;color:#476578;max-width:650px}.metrics{display:flex;background:#fff;border:1px solid var(--line);border-radius:8px;margin-bottom:28px;padding:21px 0}.metric{flex:1;padding:0 25px;border-right:1px solid var(--line)}.metric:last-child{border:0}.metric strong{display:block;font-size:26px;font-variant-numeric:tabular-nums;margin-top:7px}.metric span{font-size:13px;color:var(--muted)}.overview-grid{display:grid;grid-template-columns:minmax(0,1.5fr) minmax(280px,1fr);gap:24px;margin-bottom:28px}.checklist{display:grid}.check-row{display:flex;gap:14px;align-items:center;padding:19px 0;border-bottom:1px solid #e9eef2}.check-row:last-child{border-bottom:0;padding-bottom:0}.check-icon{display:grid;place-items:center;width:32px;height:32px;border:1px solid #cfdae2;border-radius:50%;color:#738994;flex:none}.check-icon.done{background:var(--soft);border-color:var(--soft);color:var(--accent)}.check-text{flex:1}.check-text p{font-size:13px;margin:4px 0 0;color:var(--muted)}.label{display:block;font-size:13px;font-weight:600;margin-bottom:8px}.field{margin-bottom:20px}input,select,textarea{width:100%;padding:11px 12px;color:var(--ink);background:#fff;border:1px solid #c7d6de;border-radius:5px;line-height:1.5;outline:none}input:focus,select:focus,textarea:focus{border-color:var(--accent);box-shadow:0 0 0 3px #087f8c18}input[type=number]{font-variant-numeric:tabular-nums}textarea{resize:vertical;min-height:185px}input::placeholder,textarea::placeholder{color:#83939d}.limit-field{display:flex;align-items:center;gap:12px}.limit-field input{font-size:28px;font-weight:600;max-width:160px;height:65px}.limit-field span{color:var(--muted);font-size:14px}.hint{font-size:12px;color:var(--muted);line-height:1.65;margin:10px 0 20px}.rule-list{margin:22px 0 0;padding:18px 0 0;border-top:1px solid var(--line);font-size:13px;line-height:2.1;color:var(--muted)}.rule-list p{margin:0}.toolbar{display:flex;gap:12px;align-items:center;margin-bottom:18px}.toolbar input{max-width:340px}.toolbar select{max-width:260px}.toolbar .count{margin-left:auto;font-size:13px;color:var(--muted);white-space:nowrap}.table-wrap{overflow:auto;background:#fff;border:1px solid var(--line);border-radius:7px}table{border-collapse:collapse;width:100%;font-size:14px;text-align:left;white-space:nowrap}th{background:#edf3f6;color:#526b7b;font-weight:500;font-size:12px;padding:13px 18px}td{padding:16px 18px;border-bottom:1px solid #e8eef2;max-width:340px;overflow:hidden;text-overflow:ellipsis}tr:last-child td{border:0}td small{display:block;margin-top:5px}td.email{font-family:Arial,sans-serif;font-size:13px}td .btn{padding:5px 8px;min-height:30px;font-size:12px}.pill{display:inline-block;padding:4px 9px;border-radius:4px;background:var(--soft);color:#216b6e;font-size:12px}.pill.amber{background:#faf1e2;color:#935f19}.pill.red{background:#faeaea;color:var(--red)}.empty{padding:55px 25px;text-align:center;border:1px dashed #c5d4dd;border-radius:8px;background:#fff}.empty h2{margin-bottom:10px}.empty p{color:var(--muted);max-width:470px;margin:0 auto 22px}.empty .actions{justify-content:center}.empty-symbol{font-size:35px;color:#7593a3;margin-bottom:14px}.pager{display:flex;justify-content:flex-end;align-items:center;gap:15px;margin-top:18px;font-size:13px}.editor-grid{display:grid;grid-template-columns:minmax(320px,1fr) minmax(300px,.9fr);gap:24px;align-items:start}.editor-grid .preview{position:sticky;top:24px}.step-tabs{display:flex;gap:7px;border-bottom:1px solid var(--line);padding-bottom:13px;margin-bottom:20px}.step-tabs button{padding:8px 12px;border-radius:4px;color:var(--muted);background:#f1f5f7;font-size:13px}.step-tabs button.active{background:var(--nav);color:#fff}.variables{display:flex;gap:6px;align-items:center;flex-wrap:wrap;margin:-6px 0 12px}.variables button{color:var(--accent);background:#edf5f5;padding:4px 8px;border-radius:4px;font-size:12px}.preview-head{display:flex;justify-content:space-between;align-items:center;margin-bottom:18px}.letter{border:1px solid #dce5eb;border-radius:6px;overflow:hidden}.letter-meta{background:#f5f8fa;padding:15px 18px;font-size:12px;line-height:2;color:var(--muted);border-bottom:1px solid var(--line)}.letter-subject{font-size:15px;color:var(--ink);font-weight:600;line-height:1.5;margin:10px 0 2px;overflow-wrap:anywhere}.letter-body{font-size:14px;line-height:1.95;white-space:pre-wrap;padding:22px;min-height:220px;overflow-wrap:anywhere}.notice{padding:13px 16px;border-radius:5px;background:#f9f2e6;color:#8a5b1e;font-size:13px;line-height:1.7;margin:16px 0}.notice.success{background:var(--soft);color:#236b6f}.template-list{display:grid;gap:12px}.template-row{display:flex;align-items:center;gap:15px;padding:20px 24px;border:1px solid var(--line);border-radius:7px;background:#fff}.template-row .details{flex:1}.template-row h3{margin-bottom:7px}.template-row p{font-size:13px;color:var(--muted);margin:0}.settings-grid{display:grid;grid-template-columns:minmax(320px,1fr) minmax(260px,.7fr);gap:25px}.settings-grid .panel{max-width:750px}.form-row{display:grid;grid-template-columns:1fr 1fr;gap:16px}.loading{padding:70px;text-align:center;color:var(--muted)}footer{padding:16px 42px;border-top:1px solid var(--line);font-size:11px;color:#788a96;display:flex;justify-content:space-between}dialog{border:0;border-radius:10px;width:min(930px,calc(100vw - 36px));max-height:90vh;padding:28px;box-shadow:0 20px 80px #17304230;color:var(--ink)}dialog::backdrop{background:#112b3e80}.dialog-head{display:flex;align-items:start;justify-content:space-between;gap:20px;margin-bottom:20px}.dialog-head h2{font-size:22px;margin:0 0 8px}.dialog-head p{margin:0;color:var(--muted);font-size:13px}.dialog-actions{display:flex;justify-content:flex-end;gap:10px;margin-top:22px}.import-counts{display:grid;grid-template-columns:repeat(4,1fr);background:var(--bg);padding:18px;margin-bottom:20px;border-radius:6px;gap:16px}.import-counts span{font-size:12px;color:var(--muted)}.import-counts strong{display:block;margin-top:7px;font-size:23px}.sheet-tags{display:flex;gap:8px;flex-wrap:wrap;margin-bottom:15px}.sheet-tags span{padding:5px 8px;background:#eef3f5;border-radius:3px;font-size:12px;color:var(--muted)}#toast{position:fixed;bottom:25px;left:calc(50% + 114px);transform:translateX(-50%);background:var(--nav);color:#fff;padding:14px 22px;border-radius:6px;box-shadow:0 5px 25px #17304225;max-width:80vw;z-index:20;font-size:14px}#toast.error{background:#8b3035}.error-box{padding:30px;background:#fff4f3;border:1px solid #eac9c7;border-radius:8px;color:var(--red)}.sr-only{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0,0,0,0)}[hidden]{display:none!important}
@media(min-width:1600px){main{padding-top:45px}}
@media(max-width:1100px){.sidebar{width:200px;padding:25px 12px}.workspace{margin-left:200px}main{padding:27px}.topbar{padding:0 27px}.overview-grid{grid-template-columns:1.2fr 1fr}.editor-grid{grid-template-columns:1fr}.editor-grid .preview{position:static}#toast{left:calc(50% + 100px)}}
@media(max-width:760px){.sidebar{position:static;width:100%;padding:16px 18px 9px}.brand{margin:0 0 15px;font-size:18px}.brand-mark{height:32px;width:32px;font-size:20px}.brand-sub{display:none}.sidebar nav{display:flex;gap:3px;overflow-x:auto}.nav-button{font-size:12px;padding:10px 12px}.nav-button span{display:none}.nav-button.active{box-shadow:inset 0 -2px #77d2d2}.sidebar-bottom{display:none}.workspace{margin:0}.topbar{height:48px;padding:0 20px;font-size:11px}main{padding:23px 18px;min-height:calc(100vh - 210px)}h1{font-size:25px}.page-head{flex-wrap:wrap;gap:16px}.intro{padding:20px;align-items:flex-start;flex-direction:column;gap:16px}.intro h2{font-size:20px}.metrics{display:grid;grid-template-columns:1fr 1fr;padding:6px 0}.metric{padding:14px 20px}.metric:nth-child(2){border:0}.metric strong{font-size:23px}.overview-grid,.settings-grid,.editor-grid{grid-template-columns:1fr;gap:18px}.panel{padding:20px}.toolbar{flex-wrap:wrap}.toolbar input,.toolbar select{max-width:none}.toolbar .count{margin:0}.template-row{padding:17px;flex-wrap:wrap}.import-counts{grid-template-columns:1fr 1fr}.form-row{grid-template-columns:1fr;gap:0}.actions .btn{font-size:13px}.dialog-actions{flex-wrap:wrap}dialog{padding:20px}.check-row{gap:10px}.check-row .btn{padding:8px;font-size:12px}footer{padding:16px 18px}#toast{left:50%;width:max-content}.step-tabs{overflow:auto}.letter-body{padding:17px}.panel-heading{flex-wrap:wrap}}
@media(prefers-reduced-motion:reduce){*{scroll-behavior:auto!important;animation:none!important;transition:none!important}}
/* Single-owner sign-in shares the workbench's form and button styles. */
.login-mode .sidebar,.login-mode .workspace{display:none}
.notice-count{margin-left:auto;min-width:22px;padding:2px 6px;border-radius:12px;background:#b83f43;color:#fff;text-align:center;font-size:12px}
#login-screen{min-height:100vh;display:grid;place-items:center;padding:24px;background:#f4f6f8}
.login-card{width:min(100%,440px);background:#fff;border:1px solid #dde3e8;padding:32px;border-radius:12px}
.login-card h1{font-size:24px;line-height:1.4;margin:24px 0 12px}
.login-card label,#mailbox-form label{display:block;margin-bottom:8px;font-weight:600}
.login-card input{width:100%;box-sizing:border-box}
.login-card .btn{width:100%}
#login-error{color:#b42318;overflow-wrap:anywhere}
#mailbox-form h3{margin-top:28px}
#logout{margin-top:12px}

.mail-sync { margin-bottom: 24px; }
.mail-sync p { margin: 8px 0 0; }
.mail-grid { display: grid; grid-template-columns: minmax(0, 1.5fr) minmax(280px, 1fr); gap: 24px; align-items: start; }
.mail-thread { display: flex; flex-direction: column; gap: 10px; width: 100%; padding: 22px; text-align: left; border: 0; border-bottom: 1px solid #e2e8ed; background: white; color: inherit; font: inherit; cursor: pointer; }
.mail-thread:hover { background: #f2f7f8; }
.mail-thread-title { font-weight: 650; overflow-wrap: anywhere; }
.mail-thread small, .company-hold small, .mail-message small { display: block; color: #627384; overflow-wrap: anywhere; }
.unread-dot { display: inline-block; width: 8px; height: 8px; margin-right: 9px; background: #187c80; border-radius: 50%; }
.company-hold { padding: 20px 0; border-bottom: 1px solid #e2e8ed; overflow-wrap: anywhere; }
.company-hold small { margin-top: 6px; }
.mail-message { border-bottom: 1px solid #e2e8ed; padding: 20px 0; }
.mail-message pre { white-space: pre-wrap; overflow-wrap: anywhere; font: inherit; line-height: 1.75; }
#auto-sync { width: auto; margin-right: 8px; accent-color: #187c80; }
@media (max-width: 960px) { .mail-grid { grid-template-columns: 1fr; } }