:root {
  --bg: #f4f7f6; --panel: #ffffff; --ink: #1a2a2b; --muted: #637173; --line: #e3e9e8;
  --accent: #0f7b6c; --accent-ink: #ffffff; --accent-soft: #e3f3f0; --warn: #b45309; --danger: #b42318; --ok: #157f3c;
  --chip: #eef3f2; --urgent-bg: #fdecea; --high-bg: #fff4e5;
  --radius: 14px; --radius-sm: 8px;
  --shadow-sm: 0 1px 2px rgba(16, 52, 48, .05); --shadow-md: 0 4px 16px rgba(16, 52, 48, .07);
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #14181c; --panel: #1c2227; --ink: #e6e9ec; --muted: #9aa5b1; --line: #2c343b;
    --accent: #2bb39f; --accent-ink: #0b1513; --warn: #f0a24a; --danger: #f2766a; --ok: #4cc27a;
    --chip: #262e35; --urgent-bg: #3a1f1d; --high-bg: #362a17; --accent-soft: #173a35;
    --shadow-sm: none; --shadow-md: none;
  }
}
* { box-sizing: border-box; }
body { margin: 0; font: 15px/1.5 -apple-system, "PingFang SC", "Microsoft YaHei", sans-serif; background: var(--bg); color: var(--ink); }
a { color: var(--accent); }
header { display: flex; align-items: center; gap: 16px; padding: 10px 20px; background: var(--panel); border-bottom: 1px solid var(--line); position: sticky; top: 0; z-index: 5; flex-wrap: wrap; }
header h1 { font-size: 17px; margin: 0; }
.shell { display: flex; align-items: flex-start; }
nav { width: 200px; flex: none; position: sticky; top: 53px; max-height: calc(100vh - 53px); overflow-y: auto; padding: 12px 10px 24px;
      border-right: 1px solid var(--line); background: var(--panel); align-self: stretch; }
nav .nav-group { font-size: 12px; color: var(--muted); margin: 14px 8px 4px; letter-spacing: .5px; }
nav .nav-group:first-child { margin-top: 2px; }
nav a { display: flex; align-items: center; padding: 6px 10px; border-radius: 6px; text-decoration: none; color: var(--ink); font-size: 14px; }
nav a:hover { background: var(--chip); }
nav a.active { background: var(--accent-soft); color: var(--accent); font-weight: 600; }
.badge { margin-left: auto; min-width: 20px; padding: 0 6px; border-radius: 10px; background: var(--accent); color: var(--accent-ink);
         font-size: 12px; line-height: 18px; text-align: center; }
.badge.danger { background: var(--danger); color: #fff; }
.badge:empty { display: none; }

.menu-btn { display: none; padding: 4px 10px; }
.kpis { display: grid; grid-template-columns: repeat(auto-fill, minmax(190px, 1fr)); gap: 12px; margin-bottom: 16px; }
.kpi { background: var(--panel); border: 1px solid var(--line); border-radius: var(--radius); padding: 16px 18px; box-shadow: var(--shadow-sm); transition: box-shadow .15s; }
.kpi .v { font-size: 26px; font-weight: 600; }
.kpi .k { color: var(--muted); font-size: 13px; }
.kpi .s { color: var(--muted); font-size: 12px; margin-top: 4px; }
.funnel { display: flex; flex-direction: column; gap: 8px; }
.funnel .step { display: grid; grid-template-columns: 120px 1fr 90px; gap: 10px; align-items: center; font-size: 14px; }
.funnel .bar { height: 18px; border-radius: 4px; background: var(--chip); overflow: hidden; }
.funnel .bar i { display: block; height: 100%; background: var(--accent); }
.funnel .num { text-align: right; color: var(--muted); font-variant-numeric: tabular-nums; }
.panel-head { display: flex; align-items: center; gap: 10px; margin-bottom: 12px; }
.panel-head h2 { margin: 0; }
.panel-head select { width: auto; margin: 0 0 0 auto; }
.spacer { flex: 1; }
main { padding: 20px; max-width: 1280px; margin: 0 auto; flex: 1; min-width: 0; }
.cards { display: grid; grid-template-columns: repeat(auto-fill, minmax(180px, 1fr)); gap: 12px; margin-bottom: 20px; }
.card { background: var(--panel); border: 1px solid var(--line); border-radius: var(--radius); padding: 14px 16px; box-shadow: var(--shadow-sm); transition: box-shadow .15s; }
a.card:hover, a.kpi[href]:hover { box-shadow: var(--shadow-md); }
.card .n { font-size: 28px; font-weight: 600; }
.card .l { color: var(--muted); font-size: 13px; }
.card.alert .n { color: var(--danger); }
.panel { background: var(--panel); border: 1px solid var(--line); border-radius: var(--radius); padding: 18px 20px; margin-bottom: 16px; box-shadow: var(--shadow-sm); }
.panel h2 { font-size: 16px; margin: 0 0 12px; }
.panel h3 { font-size: 14px; margin: 16px 0 8px; color: var(--muted); }
table { width: 100%; border-collapse: collapse; }
th, td { text-align: left; padding: 8px 6px; border-bottom: 1px solid var(--line); vertical-align: top; font-size: 14px; }
th { color: var(--muted); font-weight: 500; font-size: 13px; }
tr.click { cursor: pointer; }
tr.click:hover td { background: var(--chip); }
tr.p-urgent td { background: var(--urgent-bg); }
tr.p-high td { background: var(--high-bg); }
.chip { display: inline-block; padding: 1px 8px; border-radius: 10px; background: var(--chip); font-size: 12px; white-space: nowrap; }
.chip.ok { color: var(--ok); } .chip.warn { color: var(--warn); } .chip.danger { color: var(--danger); }
.muted { color: var(--muted); }
.row { display: flex; gap: 10px; flex-wrap: wrap; align-items: flex-end; }
.row > * { flex: 1 1 160px; }
label { display: block; font-size: 13px; color: var(--muted); }
input, select, textarea { width: 100%; padding: 7px 9px; border: 1px solid var(--line); border-radius: var(--radius-sm); font: inherit; background: var(--bg); color: var(--ink); margin-top: 3px; }
textarea { min-height: 70px; }
button { padding: 7px 14px; border-radius: var(--radius-sm); border: 1px solid var(--line); background: var(--panel); color: var(--ink); font: inherit; cursor: pointer; }
button.primary { background: var(--accent); color: var(--accent-ink); border-color: var(--accent); }
button.danger { color: var(--danger); }
button:disabled { opacity: .5; cursor: default; }
.btns { display: flex; gap: 8px; flex-wrap: wrap; margin-top: 10px; }
.timeline { list-style: none; padding: 0; margin: 0; }
.timeline li { padding: 6px 0; border-bottom: 1px dashed var(--line); font-size: 14px; }
.timeline .at { color: var(--muted); font-size: 12px; margin-right: 8px; }
.msgs { max-height: 380px; overflow: auto; display: flex; flex-direction: column; gap: 6px; padding: 8px; background: var(--bg); border-radius: 8px; }
.msg { max-width: 80%; padding: 7px 10px; border-radius: 10px; white-space: pre-wrap; font-size: 14px; }
.msg.in { align-self: flex-start; background: var(--panel); border: 1px solid var(--line); }
.msg.out { align-self: flex-end; background: var(--accent); color: var(--accent-ink); }
.msg .who { font-size: 11px; opacity: .75; display: block; }
.grid2 { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
@media (max-width: 860px) {
  .grid2 { grid-template-columns: 1fr; } main { padding: 12px 16px; }
  header { position: sticky; padding: 10px 16px; }
  .menu-btn { display: inline-block; }
  .shell { display: block; }
  nav { display: none !important; position: fixed; top: 53px; left: 0; bottom: 0; z-index: 10; width: 240px; max-height: none; box-shadow: 0 6px 24px rgba(0,0,0,.18); }
  nav.open { display: block !important; }
  .funnel .step { grid-template-columns: 96px 1fr 70px; }
  .cards { grid-template-columns: repeat(2, 1fr); }
}
#toast { position: fixed; bottom: 20px; left: 50%; transform: translateX(-50%); background: var(--ink); color: var(--bg); padding: 10px 16px; border-radius: 8px; display: none; z-index: 20; max-width: 90vw; }
.login { max-width: 360px; margin: 80px auto; }
.pre { white-space: pre-wrap; }
.filters { display: flex; gap: 8px; flex-wrap: wrap; margin-bottom: 12px; }
.filters select, .filters input { width: auto; }
.tablewrap { overflow-x: auto; }
input:focus, select:focus, textarea:focus { outline: none; border-color: var(--accent); box-shadow: 0 0 0 3px var(--accent-soft); }
.summary-ai { background: var(--accent-soft); border-radius: var(--radius-sm); padding: 12px 14px; margin-bottom: 12px; line-height: 1.7; }
.summary-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(260px, 1fr)); gap: 4px 20px; }
.summary-grid h3 { margin: 10px 0 4px; }
.summary-grid ul { margin: 0; padding-left: 18px; font-size: 14px; }
.summary-grid li { margin: 2px 0; }
.help-item { border-top: 1px solid var(--line); padding: 10px 0; }
.help-item p { margin: 4px 0 0; }

/* ---- staff portal landing + sign-in (modelled on the Linkwox portal) ---- */
body.is-login { background: #ffffff; }
body.is-login main { max-width: none; padding: 0; margin: 0; }
body.is-login .shell { display: block; }
.portal { color: #1a2a2b; }
.portal-wrap { max-width: 1240px; margin: 0 auto; padding: 0 32px; }
.portal-nav { position: absolute; left: 0; right: 0; top: 0; z-index: 3; }
.portal-nav .portal-wrap { display: flex; align-items: center; gap: 22px; height: 84px; }
.portal-logo { display: flex; align-items: center; gap: 10px; color: #fff; text-decoration: none; font-weight: 800; font-size: 20px; letter-spacing: .3px; }
.portal-logo em { font-style: normal; font-weight: 500; opacity: .75; font-size: 16px; }
.portal-logo .mark { width: 34px; height: 34px; border-radius: 11px; background: #3cc4ad; color: #062a26; display: grid; place-items: center; font-size: 17px; }
.portal-link { color: rgba(255,255,255,.85); text-decoration: none; font-weight: 600; font-size: 15px; }
.portal-cta { background: #3cc4ad; color: #062a26; text-decoration: none; font-weight: 700; padding: 10px 22px; border-radius: 999px; font-size: 15px; }
.portal-hero { position: relative; overflow: hidden; color: #fff; padding: 150px 0 90px;
  background: radial-gradient(1200px 600px at 85% 20%, rgba(60,196,173,.18), transparent 60%), linear-gradient(160deg, #051c1b 0%, #08302d 55%, #0c4640 100%); }
.portal-hero::after { content: ""; position: absolute; right: -260px; bottom: -300px; width: 760px; height: 760px; border-radius: 50%;
  background: repeating-radial-gradient(circle, rgba(255,255,255,.07) 0 1px, transparent 1px 22px); pointer-events: none; }
.portal-hero-grid { position: relative; z-index: 1; display: grid; grid-template-columns: 1.25fr 1fr; gap: 56px; align-items: center; }
.portal-hero h1 { font-size: 54px; line-height: 1.12; margin: 0; letter-spacing: -1px; font-weight: 800; }
.portal-hero h1 span { color: #3cc4ad; }
.portal-sub { font-size: 24px; font-weight: 700; margin-top: 14px; }
.portal-rule { width: 72px; height: 4px; border-radius: 2px; background: #3cc4ad; margin: 30px 0 26px; }
.portal-lead { color: #3cc4ad; font-size: 20px; font-weight: 700; margin: 0; }
.portal-en { color: rgba(255,255,255,.88); margin: 8px 0 0; font-size: 16px; }
.portal-desc { color: rgba(255,255,255,.72); font-size: 15.5px; line-height: 1.9; margin: 22px 0 0; max-width: 36em; }
.portal-tags { display: flex; gap: 10px; flex-wrap: wrap; margin-top: 26px; }
.portal-tags span { border: 1px solid rgba(255,255,255,.25); border-radius: 999px; padding: 6px 14px; font-size: 13.5px; color: rgba(255,255,255,.85); }
.portal-card .login { width: 100%; max-width: 420px; margin: 0 0 0 auto; padding: 32px 30px; color: #1a2a2b; background: #fff; border: 0;
  border-radius: 20px; box-shadow: 0 24px 60px rgba(0,0,0,.35); }
.portal-card .login h2 { font-size: 22px; margin: 0 0 6px; }
.portal-card .login .sub { color: #637173; font-size: 14px; margin: 0 0 22px; }
.portal-card .login label { margin-bottom: 14px; color: #637173; }
.portal-card .login input { padding: 11px 12px; font-size: 15px; background: #f4f7f6; color: #1a2a2b; border-color: #e3e9e8; }
.portal-card .login .btns button { width: 100%; padding: 12px; font-size: 16px; border-radius: 999px; }
.login-foot { color: #637173; font-size: 12.5px; margin: 16px 0 0; }
.portal-features { padding: 46px 0; border-bottom: 1px solid #eef1f0; }
.portal-feature-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 32px; }
.portal-feature-grid i { display: grid; place-items: center; width: 46px; height: 46px; border-radius: 50%; background: #e3f3f0; margin-bottom: 14px; }
.portal-feature-grid svg, .band-ic svg { width: 22px; height: 22px; fill: none; stroke: #0f7b6c; stroke-width: 1.8; stroke-linecap: round; stroke-linejoin: round; }
.portal-feature-grid b { display: block; font-size: 16px; margin-bottom: 6px; }
.portal-feature-grid span { color: #637173; font-size: 14px; line-height: 1.75; }
.portal-band { padding: 46px 0 56px; background: #f6f8f8; }
.portal-band-card { display: flex; gap: 22px; align-items: center; background: linear-gradient(160deg, #051c1b, #0c4640); color: #fff; border-radius: 22px; padding: 30px 36px; }
.band-ic { flex: none; width: 64px; height: 64px; border-radius: 16px; background: rgba(60,196,173,.16); display: grid; place-items: center; }
.band-ic svg { width: 30px; height: 30px; stroke: #3cc4ad; }
.portal-band-card b { display: block; font-size: 19px; margin-bottom: 6px; }
.portal-band-card span { color: rgba(255,255,255,.75); font-size: 14.5px; line-height: 1.8; }
.portal-foot { padding: 22px 0 30px; color: #637173; font-size: 13px; }
@media (max-width: 960px) {
  .portal-hero { padding: 120px 0 56px; }
  .portal-hero-grid { grid-template-columns: 1fr; gap: 36px; }
  .portal-card .login { margin: 0; max-width: none; }
  .portal-feature-grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 600px) {
  .portal-wrap { padding: 0 16px; }
  .portal-link { display: none; }
  .portal-hero h1 { font-size: 36px; }
  .portal-sub { font-size: 19px; }
  .portal-feature-grid { grid-template-columns: 1fr; }
  .portal-band-card { flex-direction: column; align-items: flex-start; padding: 24px; }
}