:root {
  --bg: #f3f5f9;
  --card: #ffffff;
  --primary: #1a6df5;
  --primary-dark: #0f55c4;
  --primary-light: #e8f0fe;
  --text: #1f2733;
  --text-2: #6b7686;
  --border: #e3e8ef;
  --green: #16a34a;
  --green-bg: #e8f7ee;
  --orange: #d97706;
  --orange-bg: #fef3e2;
  --red: #dc2626;
  --red-bg: #fdeaea;
  --gray: #64748b;
  --gray-bg: #eef1f5;
  --purple: #7c3aed;
  --purple-bg: #f1eafe;
  --radius: 12px;
  --shadow: 0 1px 3px rgba(16, 24, 40, 0.06), 0 4px 16px rgba(16, 24, 40, 0.05);
}
* { box-sizing: border-box; margin: 0; padding: 0; }
body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  background: var(--bg); color: var(--text); font-size: 14px; line-height: 1.6;
}
button { font-family: inherit; cursor: pointer; }
input, select, textarea { font-family: inherit; font-size: 14px; }

/* ---------- 登录 ---------- */
.login-wrap { min-height: 100vh; display: flex; align-items: center; justify-content: center;
  background: linear-gradient(135deg, #0d2b5e 0%, #1a6df5 60%, #3fa0ff 100%); }
.login-card { width: 380px; background: #fff; border-radius: 16px; padding: 40px 36px; box-shadow: 0 20px 60px rgba(0,0,0,.25); }
.login-logo { display: flex; align-items: center; gap: 10px; margin-bottom: 6px; }
.login-logo .dot { width: 34px; height: 34px; border-radius: 9px; background: linear-gradient(135deg, #1a6df5, #3fa0ff); display:flex; align-items:center; justify-content:center; color:#fff; font-weight:700; font-size:16px; }
.login-title { font-size: 22px; font-weight: 700; }
.login-sub { color: var(--text-2); font-size: 13px; margin: 4px 0 22px; }
.field { margin-bottom: 14px; }
.field label { display: block; font-size: 13px; color: var(--text-2); margin-bottom: 5px; }
.field input, .field select, .field textarea { width: 100%; padding: 9px 12px; border: 1px solid var(--border); border-radius: 8px; outline: none; background: #fff; transition: border .15s, box-shadow .15s; }
.field input:focus, .field select:focus, .field textarea:focus { border-color: var(--primary); box-shadow: 0 0 0 3px rgba(26,109,245,.12); }
.btn { border: none; border-radius: 8px; padding: 9px 16px; font-size: 14px; background: var(--gray-bg); color: var(--text); transition: all .15s; }
.btn:hover { filter: brightness(.97); }
.btn-primary { background: var(--primary); color: #fff; }
.btn-primary:hover { background: var(--primary-dark); }
.btn-danger-ghost { background: transparent; color: var(--red); border: 1px solid var(--red-bg); }
.btn-block { width: 100%; padding: 11px; font-size: 15px; font-weight: 600; }
.btn-sm { padding: 4px 10px; font-size: 12.5px; border-radius: 6px; }
.err-msg { color: var(--red); font-size: 13px; min-height: 20px; margin-top: 2px; }

/* ---------- 主框架 ---------- */
.topbar { background: #fff; border-bottom: 1px solid var(--border); position: sticky; top: 0; z-index: 20; }
.topbar-in { max-width: 1280px; margin: 0 auto; padding: 0 20px; height: 58px; display: flex; align-items: center; gap: 14px; }
.brand { display: flex; align-items: center; gap: 9px; font-weight: 700; font-size: 16px; color: var(--text); text-decoration: none; }
.brand .dot { width: 30px; height: 30px; border-radius: 8px; background: linear-gradient(135deg, #1a6df5, #3fa0ff); display:flex; align-items:center; justify-content:center; color:#fff; font-size:14px; font-weight:800; }
.top-right { margin-left: auto; display: flex; align-items: center; gap: 10px; }
.user-chip { display: flex; align-items: center; gap: 8px; padding: 5px 10px; border-radius: 20px; background: var(--bg); }
.avatar { width: 26px; height: 26px; border-radius: 50%; background: var(--primary-light); color: var(--primary-dark); display: flex; align-items: center; justify-content: center; font-size: 13px; font-weight: 700; }

.container { max-width: 1280px; margin: 0 auto; padding: 20px; }

/* 统计卡 */
.stats { display: grid; grid-template-columns: repeat(4, 1fr); gap: 14px; margin-bottom: 18px; }
.stat-card { background: var(--card); border-radius: var(--radius); padding: 16px 18px; box-shadow: var(--shadow); display: flex; flex-direction: column; gap: 2px; cursor: pointer; border: 1px solid transparent; transition: border .15s; }
.stat-card:hover { border-color: var(--primary); }
.stat-num { font-size: 26px; font-weight: 800; }
.stat-label { color: var(--text-2); font-size: 13px; }
.stat-card .tag { align-self: flex-start; }

/* 筛选 */
.filter-bar { background: var(--card); border-radius: var(--radius); padding: 12px 14px; box-shadow: var(--shadow); display: flex; flex-wrap: wrap; gap: 10px; align-items: center; margin-bottom: 14px; }
.filter-bar input[type=text] { flex: 1; min-width: 200px; padding: 8px 12px; border: 1px solid var(--border); border-radius: 8px; outline: none; }
.filter-bar input:focus { border-color: var(--primary); }
.filter-bar select { padding: 8px 10px; border: 1px solid var(--border); border-radius: 8px; outline: none; background: #fff; }
.filter-bar .spacer { flex: 0; }

/* 列表 */
.ticket-list { display: flex; flex-direction: column; gap: 10px; }
.ticket-row { background: var(--card); border-radius: var(--radius); padding: 14px 18px; box-shadow: var(--shadow); display: flex; gap: 14px; align-items: center; cursor: pointer; border-left: 4px solid transparent; transition: box-shadow .15s, transform .1s; }
.ticket-row:hover { box-shadow: 0 4px 20px rgba(16,24,40,.1); transform: translateY(-1px); }
.ticket-row .main { flex: 1; min-width: 0; }
.ticket-row .no { font-size: 12px; color: var(--text-2); font-weight: 600; letter-spacing: .3px; }
.ticket-row .title { font-size: 15px; font-weight: 600; margin: 1px 0 4px; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.ticket-row .sub { font-size: 12.5px; color: var(--text-2); display: flex; flex-wrap: wrap; gap: 12px; }
.ticket-row .right { text-align: right; flex-shrink: 0; display:flex; flex-direction:column; gap:6px; align-items:flex-end; }
.ticket-row .time { font-size: 12px; color: var(--text-2); }

/* 标签 */
.tag { display: inline-flex; align-items: center; padding: 2px 10px; border-radius: 20px; font-size: 12px; font-weight: 600; white-space: nowrap; }
.tag-gray { background: var(--gray-bg); color: var(--gray); }
.tag-green { background: var(--green-bg); color: var(--green); }
.tag-orange { background: var(--orange-bg); color: var(--orange); }
.tag-red { background: var(--red-bg); color: var(--red); }
.tag-blue { background: var(--primary-light); color: var(--primary-dark); }
.tag-purple { background: var(--purple-bg); color: var(--purple); }

.pager { display: flex; justify-content: space-between; align-items: center; margin-top: 16px; color: var(--text-2); font-size: 13px; }
.pager .btns { display: flex; gap: 8px; }
.empty { text-align: center; padding: 60px 0; color: var(--text-2); }

/* ---------- 详情 ---------- */
.detail-wrap { max-width: 1080px; margin: 0 auto; padding: 20px; }
.back-btn { background: none; border: none; color: var(--primary); font-size: 14px; margin-bottom: 12px; display:inline-flex; align-items:center; gap:4px; }
.detail-head { background: var(--card); border-radius: var(--radius); padding: 20px 24px; box-shadow: var(--shadow); margin-bottom: 14px; }
.detail-head .no { color: var(--text-2); font-size: 13px; font-weight: 600; }
.detail-head h1 { font-size: 20px; margin: 4px 0 12px; }
.meta-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(190px, 1fr)); gap: 12px 20px; }
.meta-item .k { font-size: 12px; color: var(--text-2); margin-bottom: 2px; }
.meta-item .v { font-size: 14px; font-weight: 500; word-break: break-all; }
.detail-body { display: grid; grid-template-columns: 1fr 320px; gap: 14px; align-items: start; }
.desc-card, .side-card { background: var(--card); border-radius: var(--radius); padding: 18px 20px; box-shadow: var(--shadow); }
.desc-card h3, .side-card h3 { font-size: 15px; margin-bottom: 10px; display:flex; align-items:center; gap:8px; }
.desc-text { white-space: pre-wrap; color: #333; font-size: 14px; }
.timeline { margin-top: 14px; background: var(--card); border-radius: var(--radius); padding: 18px 20px; box-shadow: var(--shadow); }
.tl-item { position: relative; padding: 0 0 16px 22px; border-left: 2px solid var(--border); margin-left: 8px; }
.tl-item:last-child { border-left-color: transparent; padding-bottom: 2px; }
.tl-item::before { content: ''; position: absolute; left: -6px; top: 4px; width: 10px; height: 10px; border-radius: 50%; background: var(--primary); border: 2px solid #fff; box-shadow: 0 0 0 2px var(--primary-light); }
.tl-head { display: flex; gap: 8px; align-items: center; flex-wrap: wrap; }
.tl-action { font-weight: 700; font-size: 13px; }
.tl-user { color: var(--primary-dark); font-size: 12.5px; }
.tl-time { color: var(--text-2); font-size: 12px; }
.tl-content { margin-top: 3px; font-size: 13.5px; color: #374151; white-space: pre-wrap; word-break: break-word; }
.tl-item.act-评论 .tl-content, .tl-item.act-处理记录 .tl-content { background: var(--bg); border-radius: 8px; padding: 8px 12px; }

.comment-box { display: flex; gap: 10px; margin-top: 14px; background: var(--card); border-radius: var(--radius); padding: 14px; box-shadow: var(--shadow); align-items: flex-end; }
.comment-box textarea { flex: 1; border: 1px solid var(--border); border-radius: 8px; padding: 9px 12px; resize: vertical; min-height: 44px; outline: none; }
.comment-box textarea:focus { border-color: var(--primary); }
.side-card .btn { width: 100%; margin-top: 8px; }
.side-select { width: 100%; padding: 7px 10px; border: 1px solid var(--border); border-radius: 8px; margin-bottom: 6px; background: #fff; outline: none; }

/* 弹窗 */
.modal-mask { position: fixed; inset: 0; background: rgba(15,23,42,.45); display: flex; align-items: center; justify-content: center; z-index: 100; padding: 20px; }
.modal { background: #fff; border-radius: 16px; width: 640px; max-width: 100%; max-height: 92vh; overflow: auto; padding: 24px 28px; box-shadow: 0 24px 80px rgba(0,0,0,.3); }
.modal h2 { font-size: 18px; margin-bottom: 18px; }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 0 16px; }
.form-actions { display: flex; justify-content: flex-end; gap: 10px; margin-top: 20px; }
.modal-sm { width: 420px; }
.hidden { display: none !important; }
.toast { position: fixed; top: 20px; left: 50%; transform: translateX(-50%); background: #111827; color: #fff; padding: 9px 18px; border-radius: 8px; font-size: 14px; z-index: 200; box-shadow: 0 8px 30px rgba(0,0,0,.3); opacity: 0; transition: opacity .2s; }
.toast.show { opacity: 1; }
.user-row { display: flex; align-items: center; justify-content: space-between; padding: 10px 0; border-bottom: 1px solid var(--border); }
.user-row:last-child { border-bottom: none; }
.del { color: var(--red); background: none; border: none; font-size: 12.5px; }
@media (max-width: 800px) {
  .stats { grid-template-columns: repeat(2, 1fr); }
  .detail-body { grid-template-columns: 1fr; }
  .form-row { grid-template-columns: 1fr; }
}