/* 客服台（只在客服域名上能打开）。沿用主站的墨色 / 品牌蓝，排得更紧凑。 */
:root{
  --bg:#f5f5f7;--panel:#fff;--ink:#1d1d1f;--soft:#424245;--muted:#6e6e73;--line:rgba(0,0,0,.09);
  --blue:#0066cc;--tint:#eef5fd;--warn:#b8431a;--warn-tint:#fcefe8;--ok:#14784f;--red:#d93025;
  --top-h:52px;
  --z-top:10;--z-toast:40;
}
*{box-sizing:border-box}
html,body{margin:0;height:100%}
body{background:var(--bg);color:var(--ink);font:14.5px/1.5 -apple-system,BlinkMacSystemFont,"SF Pro Text","PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;-webkit-font-smoothing:antialiased}
button,input,textarea{font:inherit;color:inherit}
button{cursor:pointer}
[hidden]{display:none!important}
:focus-visible{outline:2px solid var(--blue);outline-offset:2px}

.btn{display:inline-flex;align-items:center;justify-content:center;min-height:36px;padding:7px 16px;border:0;border-radius:980px;background:#e8e8ed;color:var(--ink);font-size:14px;font-weight:500;white-space:nowrap;transition:background .15s}
.btn:hover{background:#dcdce1}
.btn--primary{background:var(--blue);color:#fff}
.btn--primary:hover{background:#0071e3}
.btn--sm{min-height:30px;padding:4px 13px;font-size:13px}
.btn--block{width:100%;min-height:42px;font-size:15px}
.btn:disabled{opacity:.5;cursor:default}
.link{padding:6px 4px;border:0;background:none;color:var(--blue);font-size:13.5px}
.link:hover{text-decoration:underline}
.form-msg{min-height:20px;margin:0;color:var(--warn);font-size:13px}

label{display:block;margin:14px 0 5px;color:var(--soft);font-size:13px;font-weight:500}
input[type=text],input[type=password]{width:100%;height:42px;padding:0 13px;border:1px solid rgba(0,0,0,.16);border-radius:11px;background:#fff;font-size:15px}
input:focus{outline:0;border-color:var(--blue);box-shadow:0 0 0 3px rgba(0,102,204,.16)}

/* ---------- 登录 ---------- */
.login{min-height:100%;display:grid;place-items:center;padding:24px 18px}
.login__card{width:min(380px,100%);padding:32px 28px 28px;border-radius:20px;background:var(--panel);box-shadow:0 1px 2px rgba(0,0,0,.05),0 18px 44px -26px rgba(0,0,0,.3)}
.login__card img{display:block;border-radius:11px}
.login__card h1{margin:16px 0 6px;font-size:23px;font-weight:700;letter-spacing:-.01em}
.login__lead{margin:0 0 8px;color:var(--muted);font-size:13.5px}
.login__card .form-msg{margin:10px 0 8px}

/* ---------- 工作台 ---------- */
.desk{display:flex;flex-direction:column;height:100vh;height:100dvh}
.top{flex:none;display:flex;align-items:center;gap:10px;height:var(--top-h);padding:0 16px;background:var(--panel);border-bottom:1px solid var(--line);position:relative;z-index:var(--z-top)}
.top img{border-radius:7px}
.top__name{font-size:16px;font-weight:650}
.top__wait{padding:2px 10px;border-radius:980px;background:var(--warn-tint);color:var(--warn);font-size:12.5px;font-weight:600}
.top__spacer{flex:1}
.top__me{color:var(--muted);font-size:13.5px;margin-right:4px;max-width:14em;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}

.panes{flex:1;min-height:0;display:grid;grid-template-columns:minmax(260px,330px) minmax(0,1fr)}
.list{display:flex;flex-direction:column;min-height:0;background:var(--panel);border-right:1px solid var(--line)}
.tabs{flex:none;display:flex;gap:4px;padding:10px 10px 8px;border-bottom:1px solid var(--line)}
.tabs button{flex:1;min-height:32px;padding:4px 6px;border:0;border-radius:9px;background:none;color:var(--muted);font-size:13.5px;font-weight:500}
.tabs button:hover{background:#f0f0f3}
.tabs button[aria-selected=true]{background:#e8e8ed;color:var(--ink);font-weight:600}
.tabs i{font-style:normal;font-variant-numeric:tabular-nums;opacity:.75}
.threads{flex:1;min-height:0;overflow-y:auto;margin:0;padding:6px;list-style:none}
.thread{display:block;width:100%;padding:10px 12px;border:0;border-radius:12px;background:none;text-align:left}
.thread:hover{background:#f5f5f7}
.thread[aria-current=true]{background:var(--tint)}
.thread__top{display:flex;align-items:center;gap:8px}
.thread__name{flex:1;min-width:0;font-weight:600;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;font-variant-numeric:tabular-nums}
.thread__time{flex:none;color:var(--muted);font-size:12px;font-variant-numeric:tabular-nums}
.thread__sub{display:flex;align-items:center;gap:8px;margin-top:2px}
.thread__preview{flex:1;min-width:0;color:var(--muted);font-size:13px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.thread__unread{flex:none;min-width:18px;height:18px;padding:0 5px;border-radius:9px;background:var(--red);color:#fff;font-size:11px;font-weight:700;line-height:18px;text-align:center}
.thread__tag{flex:none;padding:0 7px;border-radius:6px;background:#e8e8ed;color:var(--soft);font-size:11.5px;line-height:18px}
.thread__tag--wait{background:var(--warn-tint);color:var(--warn)}
.list__empty{margin:0;padding:34px 20px;color:var(--muted);text-align:center;font-size:13.5px}

.chat{display:flex;flex-direction:column;min-width:0;min-height:0}
.chat__blank{margin:auto;padding:24px;color:var(--muted);text-align:center;font-size:13.5px}
.chat__blank strong{display:block;margin-bottom:4px;color:var(--ink);font-size:17px;font-weight:650}
.chat__body{flex:1;min-height:0;display:flex;flex-direction:column}
.who{flex:none;display:flex;align-items:center;gap:12px;padding:12px 18px;background:var(--panel);border-bottom:1px solid var(--line)}
.who__back{display:none;flex:none;width:34px;height:34px;border:0;border-radius:50%;background:#e8e8ed;font-size:22px;line-height:1}
.who__main{flex:1;min-width:0}
.who__main strong{font-size:16px;font-weight:650;font-variant-numeric:tabular-nums}
.who__facts{display:flex;flex-wrap:wrap;gap:2px 16px;margin:2px 0 0;color:var(--muted);font-size:12.5px}
.who__facts div{display:flex;gap:5px}
.who__facts dt{margin:0}
.who__facts dd{margin:0;color:var(--soft)}
.who__facts .bad dd{color:var(--warn);font-weight:600}

.log{flex:1;min-height:0;overflow-y:auto;overscroll-behavior:contain;padding:16px 18px;display:flex;flex-direction:column;gap:6px}
.log__time{align-self:center;margin:10px 0 2px;color:var(--muted);font-size:12px}
.log__state{align-self:center;margin:10px 0 2px;padding:4px 12px;border-radius:980px;background:#e8e8ed;color:var(--soft);font-size:12.5px}
.msg{max-width:min(74%,560px);padding:8px 12px;border-radius:16px;white-space:pre-wrap;overflow-wrap:anywhere;line-height:1.5}
.msg--user{align-self:flex-start;background:var(--panel);border-bottom-left-radius:5px;box-shadow:0 1px 2px rgba(0,0,0,.06)}
.msg--staff{align-self:flex-end;background:var(--blue);color:#fff;border-bottom-right-radius:5px}

.reply{flex:none;padding:12px 18px 14px;background:var(--panel);border-top:1px solid var(--line)}
.reply textarea{display:block;width:100%;min-height:60px;max-height:180px;padding:9px 12px;border:1px solid rgba(0,0,0,.16);border-radius:12px;background:#fff;resize:none;line-height:1.5}
.reply textarea:focus{outline:0;border-color:var(--blue);box-shadow:0 0 0 3px rgba(0,102,204,.16)}
.reply textarea::placeholder{color:#75757a}
.reply__row{display:flex;align-items:center;gap:12px;margin-top:8px}
.reply__row .form-msg{flex:1;min-height:0}
.reply__count{color:var(--muted);font-size:12px;font-variant-numeric:tabular-nums}

/* ---------- 弹窗 / 提示 ---------- */
.sheet{width:min(400px,calc(100% - 32px));padding:26px 24px 22px;border:0;border-radius:20px;background:var(--panel);color:var(--ink);box-shadow:0 24px 60px rgba(0,0,0,.22)}
.sheet::backdrop{background:rgba(29,29,31,.42)}
.sheet h2{margin:0 0 6px;font-size:20px;font-weight:700}
.sheet__lead{margin:0;color:var(--muted);font-size:13.5px}
.sheet .form-msg{margin-top:10px}
.sheet__actions{display:flex;justify-content:flex-end;gap:10px;margin-top:10px}
.toast{position:fixed;left:50%;bottom:28px;transform:translateX(-50%);z-index:var(--z-toast);max-width:calc(100% - 32px);padding:10px 18px;border-radius:980px;background:rgba(29,29,31,.92);color:#fff;font-size:14px}

/* ---------- 手机：一次只看一栏 ---------- */
@media (max-width:760px){
  .panes{grid-template-columns:minmax(0,1fr)}
  .desk:not(.is-chat) .chat{display:none}
  .desk.is-chat .list{display:none}
  .list{border-right:0}
  .who{padding:10px 12px}
  .who__back{display:block}
  .log{padding:12px}
  .msg{max-width:86%}
  .reply{padding:10px 12px calc(10px + env(safe-area-inset-bottom))}
  .top{padding:0 12px}
  .top__me{display:none}
}
@media (prefers-reduced-motion:reduce){*{transition:none!important;scroll-behavior:auto!important}}