/* ==========================================================================
   IT 报障服务台（员工自助门户）
   手机优先，单列布局；不依赖任何前端框架与 CDN，弱网也能秒开
   ========================================================================== */

:root {
  --primary: #2563eb;
  --primary-dark: #1d4ed8;
  --primary-light: #eff4ff;
  --danger: #e5484d;
  --warning: #f0a020;
  --success: #17a673;
  --text: #1f2937;
  --text-sub: #6b7280;
  --border: #e5e7eb;
  --bg: #f4f6fb;
  --card: #ffffff;
  --radius: 14px;
  --shadow: 0 6px 24px rgba(31, 41, 55, 0.08);
}

* { box-sizing: border-box; -webkit-tap-highlight-color: transparent; }

html, body {
  margin: 0;
  padding: 0;
  background: var(--bg);
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
  font-size: 15px;
  line-height: 1.5;
  -webkit-text-size-adjust: 100%;
}

body { min-height: 100vh; padding-bottom: env(safe-area-inset-bottom); }

[hidden] { display: none !important; }

/* ---------------- 顶部 ---------------- */
.head {
  background: linear-gradient(135deg, #2563eb 0%, #1d4ed8 100%);
  padding: calc(18px + env(safe-area-inset-top)) 18px 26px;
  color: #fff;
}
.brand { display: flex; align-items: center; gap: 12px; max-width: 640px; margin: 0 auto; }
.logo {
  width: 44px; height: 44px; flex: none;
  border-radius: 12px;
  background: rgba(255, 255, 255, 0.2);
  display: flex; align-items: center; justify-content: center;
  font-weight: 700; font-size: 16px; letter-spacing: .5px;
}
.brand-text h1 { margin: 0; font-size: 19px; font-weight: 600; }
.brand-text p { margin: 3px 0 0; font-size: 12px; opacity: .85; }

/* ---------------- Tab ----------------
   选项卡横跨「蓝色头部 / 浅色内容」交界，因此用白底卡片 + 深色文字，
   避免未选中态白字落到浅色背景上看不清 */
.tabs {
  display: flex; gap: 4px;
  max-width: 640px;
  margin: -18px auto 0;
  padding: 4px;
  background: #fff;
  border-radius: 12px;
  box-shadow: 0 6px 20px rgba(31, 41, 55, .10);
  position: relative;
  z-index: 2;
  width: calc(100% - 32px);
}
.tab {
  flex: 1;
  border: 0;
  background: transparent;
  color: var(--text-sub);
  font-size: 14px;
  padding: 10px 0;
  border-radius: 9px;
  cursor: pointer;
  font-family: inherit;
  transition: background .15s, color .15s;
  white-space: nowrap;
}
.tab.on { background: var(--primary); color: #fff; font-weight: 600; }

/* ---------------- 主体 ---------------- */
.wrap {
  max-width: 640px;
  margin: 0 auto;
  padding: 16px 16px 8px;
}
.card {
  background: var(--card);
  border-radius: var(--radius);
  padding: 18px;
  box-shadow: var(--shadow);
  margin-bottom: 14px;
}
.card.center { text-align: center; padding: 34px 20px; }
.card.center h2 { margin: 12px 0 6px; font-size: 17px; }
.center-t { text-align: center; display: block; }

.ico { width: 44px; height: 44px; }
.ico.ok { color: var(--success); }
.ico.warn { color: var(--danger); }

.muted { color: var(--text-sub); }
.small { font-size: 12.5px; }

/* ---------------- 表单 ---------------- */
.field { margin-bottom: 14px; }
.field label {
  display: block;
  font-size: 13px;
  color: var(--text-sub);
  margin-bottom: 6px;
}
.field label i { color: var(--danger); font-style: normal; }

input[type="text"], input[type="tel"], input[type="search"], select, textarea {
  width: 100%;
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 12px 12px;
  font-size: 15px;
  font-family: inherit;
  color: var(--text);
  background: #fff;
  outline: none;
  transition: border-color .15s, box-shadow .15s;
  -webkit-appearance: none;
  appearance: none;
}
select {
  background-image: url("data:image/svg+xml;charset=utf8,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath d='M2 4l4 4 4-4' fill='none' stroke='%236b7280' stroke-width='1.6' stroke-linecap='round'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 12px center;
  padding-right: 34px;
}
input:focus, select:focus, textarea:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(37, 99, 235, .12);
}
textarea { resize: vertical; min-height: 96px; }

.row { display: flex; gap: 12px; }
.row .field { flex: 1; min-width: 0; }

.counter { text-align: right; font-size: 12px; color: var(--text-sub); margin-top: 4px; }

/* ---------------- 紧急程度 ---------------- */
.pri { display: flex; gap: 8px; }
.pri-item {
  flex: 1;
  border: 1px solid var(--border);
  background: #fff;
  color: var(--text-sub);
  border-radius: 9px;
  padding: 10px 0;
  font-size: 13.5px;
  font-family: inherit;
  cursor: pointer;
  transition: all .15s;
}
.pri-item.on { border-color: var(--primary); color: var(--primary); background: var(--primary-light); font-weight: 600; }
.pri-item.on.urgent { border-color: var(--danger); color: var(--danger); background: rgba(229, 72, 77, .08); }
.pri-item.on.high { border-color: var(--warning); color: #b9750c; background: rgba(240, 160, 32, .1); }

/* ---------------- 按钮 ---------------- */
.btn {
  border: 1px solid transparent;
  border-radius: 10px;
  padding: 12px 18px;
  font-size: 15px;
  font-family: inherit;
  cursor: pointer;
  background: #fff;
  color: var(--text);
  transition: opacity .15s, transform .05s;
}
.btn:active { transform: scale(.99); }
.btn[disabled] { opacity: .6; pointer-events: none; }
.btn.primary { background: var(--primary); color: #fff; }
.btn.primary:hover { background: var(--primary-dark); }
.btn.text { background: transparent; color: var(--text-sub); }
.btn.block { width: 100%; }
.card .btn.block { margin-top: 4px; }
.card.center .btn { display: block; width: 100%; margin-top: 10px; }

/* ---------------- 提交成功 ---------------- */
.no-box {
  font-size: 21px;
  font-weight: 700;
  letter-spacing: 1px;
  color: var(--primary);
  background: var(--primary-light);
  border-radius: 10px;
  padding: 13px 0;
  margin: 10px 0;
  word-break: break-all;
}

/* ---------------- 查询结果 ---------------- */
.r-head { display: flex; align-items: center; gap: 8px; margin-bottom: 12px; }
.tag {
  font-size: 12.5px;
  padding: 3px 10px;
  border-radius: 999px;
  background: var(--primary-light);
  color: var(--primary);
  font-weight: 600;
}
.tag.done { background: rgba(23, 166, 115, .12); color: var(--success); }
.tag.pending { background: #f1f3f7; color: var(--text-sub); }
.tag.processing { background: rgba(240, 160, 32, .14); color: #b9750c; }

.r-line { display: flex; gap: 10px; font-size: 14px; padding: 5px 0; }
.r-line span { color: var(--text-sub); width: 40px; flex: none; }
.r-line b { font-weight: 500; word-break: break-word; }

.r-result { margin-top: 12px; background: var(--bg); border-radius: 10px; padding: 12px; }
.r-result p { margin: 6px 0 0; font-size: 14px; white-space: pre-wrap; word-break: break-word; }

/* ---------------- 评价 ---------------- */
.rate { margin-top: 18px; border-top: 1px dashed var(--border); padding-top: 14px; }
.rate .label { font-size: 14px; margin-bottom: 8px; }
.stars { display: flex; gap: 6px; margin-bottom: 6px; }
.stars button {
  border: 0;
  background: transparent;
  font-size: 30px;
  line-height: 1;
  color: #d8dce6;
  cursor: pointer;
  padding: 0 2px;
  transition: color .12s, transform .12s;
}
.stars button.on { color: #f5a623; transform: scale(1.05); }
.rate textarea { margin-top: 10px; }
.ratd, .rated { margin-top: 14px; font-size: 14px; color: var(--text-sub); }
#ratedStars { color: #f5a623; letter-spacing: 2px; font-size: 16px; }

/* ---------------- FAQ ---------------- */
.search { display: flex; gap: 8px; }
.search input { flex: 1; }
.search .btn { padding: 0 16px; flex: none; }

.faq-item {
  background: var(--card);
  border-radius: 12px;
  padding: 14px 16px;
  margin-bottom: 10px;
  box-shadow: 0 2px 10px rgba(31, 41, 55, .05);
  cursor: pointer;
}
.faq-q { display: flex; gap: 8px; align-items: flex-start; font-size: 14.5px; font-weight: 500; }
.faq-q .arrow { margin-left: auto; color: var(--text-sub); flex: none; transition: transform .18s; }
.faq-item.open .faq-q .arrow { transform: rotate(180deg); }
.faq-meta { margin-top: 6px; font-size: 12px; color: var(--text-sub); }
.faq-a {
  margin-top: 12px;
  padding-top: 12px;
  border-top: 1px dashed var(--border);
  font-size: 14px;
  line-height: 1.75;
  white-space: pre-wrap;
  word-break: break-word;
  color: #374151;
}
.empty { text-align: center; padding: 30px 0; color: var(--text-sub); font-size: 14px; }

/* ---------------- 加载 / 提示 ---------------- */
.spinner {
  width: 26px; height: 26px;
  border: 2.5px solid #e3e8f0;
  border-top-color: var(--primary);
  border-radius: 50%;
  margin: 0 auto 10px;
  animation: spin .8s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }

.toast {
  position: fixed;
  left: 50%;
  bottom: calc(28px + env(safe-area-inset-bottom));
  transform: translateX(-50%);
  max-width: 88vw;
  background: rgba(31, 41, 55, .92);
  color: #fff;
  font-size: 14px;
  padding: 11px 18px;
  border-radius: 10px;
  z-index: 99;
  animation: rise .18s ease-out;
  text-align: center;
  word-break: break-word;
}
.toast.err { background: rgba(196, 43, 48, .95); }
@keyframes rise { from { opacity: 0; transform: translate(-50%, 8px); } to { opacity: 1; transform: translate(-50%, 0); } }

/* ---------------- 页脚 ---------------- */
.foot { text-align: center; padding: 12px 20px 26px; color: var(--text-sub); font-size: 12.5px; }
.foot p { margin: 4px 0; }

/* ---------------- 窄屏微调 ---------------- */
@media (max-width: 360px) {
  .row { flex-direction: column; gap: 0; }
  .tab { font-size: 13px; }
}