/* ===== 太阳高度角计算工具 — 样式 ===== */
:root {
  --primary: #e8590c;
  --primary-dark: #c2410c;
  --ink: #1f2937;
  --ink-2: #475569;
  --ink-3: #94a3b8;
  --bg: #f2f4f8;
  --card: #ffffff;
  --line: #e2e8f0;
  --radius: 12px;
}

* { box-sizing: border-box; margin: 0; padding: 0; }

html, body {
  font-family: "Microsoft YaHei", "PingFang SC", "Noto Sans CJK SC", "Source Han Sans SC", sans-serif;
  background: var(--bg);
  color: var(--ink);
  font-size: 14px;
}

/* ---- 防误选文本（v1.35）----
 * 拖动时刻滑块/在图上操作时禁止页面文本被鼠标选中，否则浏览器会弹出
 * "松开鼠标以搜索文本"拖拽搜索提示并干扰交互（表现为太阳位置乱蹦）。
 * 输入框与表格保留可选中/复制能力。 */
html, body, .panel, .chart-card, .table-card, .map-wrap, .topbar, footer,
.sp-legend, .help-tip, .help-mask, .quick-btns, .view-tabs, .chart-head, .chart-btns {
  -webkit-user-select: none;
  -moz-user-select: none;
  user-select: none;
}
input, textarea, .table-scroll, .help-body, .geo-search input {
  -webkit-user-select: text;
  user-select: text;
}

/* ---- 顶部 ---- */
.topbar {
  background: linear-gradient(135deg, #7c2d12 0%, #c2410c 55%, #ea580c 100%);
  color: #fff;
  box-shadow: 0 2px 10px rgba(0,0,0,.18);
}
.topbar-inner {
  max-width: 1440px; margin: 0 auto; padding: 14px 20px;
  display: flex; align-items: center; justify-content: space-between; flex-wrap: wrap; gap: 10px;
}
.brand { display: flex; align-items: center; gap: 14px; }
.brand-icon {
  font-size: 34px; line-height: 1;
  width: 56px; height: 56px; border-radius: 50%;
  background: rgba(255,255,255,.16);
  display: flex; align-items: center; justify-content: center;
  box-shadow: inset 0 0 0 2px rgba(255,255,255,.35);
}
.brand h1 { font-size: 22px; font-weight: 700; letter-spacing: 1px; }
.brand .sub { font-size: 12.5px; opacity: .88; margin-top: 3px; }
.badges { display: flex; gap: 8px; flex-wrap: wrap; }
.badge {
  background: rgba(255,255,255,.16); border: 1px solid rgba(255,255,255,.35);
  border-radius: 999px; padding: 4px 12px; font-size: 12px; white-space: nowrap;
}

main { max-width: 1440px; margin: 0 auto; padding: 16px 20px 30px; }

/* ---- 布局：面板 + 地图 ---- */
.layout { display: grid; grid-template-columns: 330px 1fr; gap: 14px; align-items: start; }

.panel {
  background: var(--card); border-radius: var(--radius); padding: 16px;
  border: 1px solid var(--line); display: flex; flex-direction: column; gap: 16px;
  box-shadow: 0 1px 3px rgba(0,0,0,.05);
}
.pgroup h3 {
  font-size: 13.5px; color: var(--primary-dark); margin-bottom: 10px;
  padding-bottom: 6px; border-bottom: 2px solid #fde2d3;
}
.row { display: flex; align-items: center; gap: 8px; margin-bottom: 9px; }
.row span { width: 108px; flex: none; color: var(--ink-2); font-size: 13px; }
.row input, .row select {
  flex: 1; min-width: 0; padding: 7px 9px;
  border: 1px solid var(--line); border-radius: 8px; font-size: 13.5px; color: var(--ink);
  background: #fff; font-family: inherit;
}
.row input:focus, .row select:focus { outline: 2px solid #fdba74; border-color: var(--primary); }
input[type="range"] { width: 100%; accent-color: var(--primary); margin: 4px 0 8px; }
.hint { font-size: 12px; color: var(--ink-3); margin-top: -2px; }
.tz-auto { color: var(--primary, #e8590c); font-weight: 600; }
/* v1.36：按经度估算时区——小按钮 + 提示 */
.mini-btn {
  border: 1px solid var(--line); background: #f8fafc; color: var(--ink-2);
  border-radius: 7px; padding: 6px 10px; font-size: 12px; cursor: pointer;
  font-family: inherit; white-space: nowrap; flex: none; transition: all .15s;
}
.mini-btn:hover { border-color: var(--primary); color: var(--primary); background: #fff7f0; }
.tz-est { color: #2563eb; font-weight: 600; margin-left: 6px; }
.tz-est.warn { color: #b45309; }

.quick-btns { display: flex; flex-wrap: wrap; gap: 6px; margin-bottom: 10px; }
.quick-btns button {
  border: 1px solid var(--line); background: #f8fafc; color: var(--ink-2);
  border-radius: 7px; padding: 4px 10px; font-size: 12px; cursor: pointer; font-family: inherit;
  transition: all .15s;
}
.quick-btns button:hover { border-color: var(--primary); color: var(--primary); background: #fff7f0; }

.now-clock { float: right; font-size: 12px; font-weight: 400; color: var(--ink-3); font-variant-numeric: tabular-nums; }
.interval-label { display: flex; align-items: center; gap: 6px; font-size: 12.5px; color: var(--ink-2); }
.interval-label select {
  padding: 5px 8px; border: 1px solid var(--line); border-radius: 7px;
  font-size: 12.5px; color: var(--ink); background: #fff; font-family: inherit;
}
.interval-label select:focus { outline: 2px solid #fdba74; border-color: var(--primary); }

/* ---- 地图 ---- */
.map-wrap { position: relative; border-radius: var(--radius); overflow: hidden; border: 1px solid var(--line); box-shadow: 0 1px 3px rgba(0,0,0,.05); }
#map { height: clamp(520px, calc(100vh - 120px), 820px); width: 100%; background: #e8ecef; }
.layer-btns {
  position: absolute; top: 10px; right: 10px; z-index: 1000;
  display: flex; background: #fff; border-radius: 8px; overflow: hidden;
  box-shadow: 0 1px 4px rgba(0,0,0,.25); border: 1px solid var(--line);
}
.layer-btns button {
  border: none; background: #fff; color: var(--ink-2); padding: 7px 14px; font-size: 12.5px;
  cursor: pointer; font-family: inherit;
}
.layer-btns button.active { background: var(--primary); color: #fff; }
.map-legend {
  position: absolute; bottom: 14px; left: 10px; z-index: 1000;
  background: rgba(255,255,255,.94); border-radius: 10px; padding: 9px 12px;
  box-shadow: 0 1px 5px rgba(0,0,0,.18); font-size: 12px; display: grid;
  grid-template-columns: repeat(2, auto); gap: 4px 14px; border: 1px solid var(--line);
}
.legend-title { grid-column: 1 / -1; font-weight: 700; color: var(--ink); margin-bottom: 2px; font-size: 12.5px; }
.legend-item { display: flex; align-items: center; gap: 6px; color: var(--ink-2); }
.sw { width: 18px; height: 4px; border-radius: 2px; display: inline-block; }
.sw.dashed { background: repeating-linear-gradient(90deg, #dc2626 0 6px, transparent 6px 10px); }
.sw.dim { background: #94a3b8; opacity: .5; }
.map-locinfo {
  position: absolute; top: 52px; left: 10px; z-index: 1000;
  background: rgba(255,255,255,.94); border-radius: 8px; padding: 6px 12px;
  font-size: 12.5px; color: var(--ink-2); box-shadow: 0 1px 4px rgba(0,0,0,.2); border: 1px solid var(--line);
}
.map-toast {
  position: absolute; top: 10px; left: 50%; transform: translateX(-50%); z-index: 1200;
  background: #fef3c7; color: #92400e; border: 1px solid #fcd34d; border-radius: 8px;
  padding: 8px 16px; font-size: 12.5px; box-shadow: 0 2px 8px rgba(0,0,0,.15);
  opacity: 0; pointer-events: none; transition: opacity .3s; max-width: 70%; text-align: center;
}
.map-toast.show { opacity: 1; }

/* 地址搜索框 */
.geo-search { position: absolute; top: 10px; left: 10px; z-index: 1001; width: 300px; }
.geo-search input {
  width: 100%; padding: 8px 12px; border: 1px solid var(--line); border-radius: 8px;
  font-size: 13px; font-family: inherit; color: var(--ink);
  box-shadow: 0 1px 4px rgba(0,0,0,.2);
}
.geo-search input:focus { outline: 2px solid #fdba74; border-color: var(--primary); }
#geoResults {
  position: absolute; top: 42px; left: 0; right: 0; background: #fff;
  border: 1px solid var(--line); border-radius: 8px; box-shadow: 0 4px 14px rgba(0,0,0,.18);
  max-height: 270px; overflow: auto; display: none; z-index: 1002;
}
.geo-item { padding: 8px 12px; font-size: 13px; cursor: pointer; border-bottom: 1px solid #f1f5f9; }
.geo-item:last-child { border-bottom: none; }
.geo-item:hover { background: #fff1e6; }
.geo-item .gt { color: var(--ink-3); font-size: 11px; margin-left: 6px; }
.geo-item .gp { color: var(--ink-3); font-size: 12px; }
.geo-note { padding: 8px 12px; font-size: 12px; color: var(--ink-3); }

/* 地图标记 / 射线标签 */
.loc-marker-wrap { position: relative; }
.loc-marker {
  width: 20px; height: 20px; border-radius: 50%;
  background: var(--primary); border: 3px solid #fff;
  box-shadow: 0 0 0 3px rgba(232,89,12,.55), 0 2px 6px rgba(0,0,0,.3);
  animation: pulse 2s infinite;
}
@keyframes pulse {
  0%   { box-shadow: 0 0 0 3px rgba(232,89,12,.55), 0 2px 6px rgba(0,0,0,.3); }
  50%  { box-shadow: 0 0 0 8px rgba(232,89,12,.18), 0 2px 6px rgba(0,0,0,.3); }
  100% { box-shadow: 0 0 0 3px rgba(232,89,12,.55), 0 2px 6px rgba(0,0,0,.3); }
}
.ray-end { background: transparent; border: none; }
.ray-tip {
  background: rgba(255,255,255,.95) !important; color: var(--ink) !important;
  border: 1px solid var(--line); border-radius: 6px; padding: 2px 7px !important;
  font-size: 11.5px !important; box-shadow: 0 1px 4px rgba(0,0,0,.18);
  white-space: nowrap; text-align: center;
}
.ray-tip b { color: var(--primary-dark); }

/* ---- 结果卡片 ---- */
.cards {
  display: grid; grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
  gap: 12px; margin-top: 14px;
}
.card {
  background: var(--card); border: 1px solid var(--line); border-radius: var(--radius);
  padding: 13px 15px; box-shadow: 0 1px 3px rgba(0,0,0,.05);
}
.card-label { font-size: 12px; color: var(--ink-3); margin-bottom: 7px; }
.card-value { font-size: 21px; font-weight: 700; color: var(--ink); font-variant-numeric: tabular-nums; }
.card-value small { font-size: 12px; font-weight: 400; color: var(--ink-3); margin-left: 2px; }

/* ---- 图表 ---- */
.charts { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; margin-top: 14px; }
.chart-card, .table-card {
  background: var(--card); border: 1px solid var(--line); border-radius: var(--radius);
  padding: 14px 16px; box-shadow: 0 1px 3px rgba(0,0,0,.05);
}
.chart-head { display: flex; align-items: baseline; gap: 12px; flex-wrap: wrap; margin-bottom: 4px; }
.chart-head h3 { font-size: 15px; color: var(--ink); }
.chart-sub { font-size: 12px; color: var(--ink-3); flex: 1; min-width: 140px; }
.chart-btns { display: flex; gap: 8px; }
.chart-btns button, .panel button {
  border: 1px solid var(--primary); background: var(--primary); color: #fff;
  border-radius: 8px; padding: 6px 14px; font-size: 12.5px; cursor: pointer; font-family: inherit;
  transition: background .15s;
}
.chart-btns button:hover, .panel button:hover { background: var(--primary-dark); }
.chart { width: 100%; height: 500px; }
#dome-wrap { position: relative; }
#domeCanvas { width: 100%; height: 100%; display: block; }
.sp-legend {
  display: flex; align-items: center; gap: 16px; flex-wrap: wrap;
  font-size: 12px; color: var(--ink-2); margin: 8px 0 4px; padding: 7px 10px;
  background: #f8fafc; border: 1px solid var(--line); border-radius: 8px;
}
.sp-legend .lg { display: inline-block; width: 18px; height: 4px; border-radius: 2px; margin-right: 5px; vertical-align: middle; }
.sp-legend .sp-hint { margin-left: auto; color: var(--primary-dark); }
.view-tabs { display: flex; background: #f1f5f9; border-radius: 8px; overflow: hidden; border: 1px solid var(--line); }
.view-tabs button {
  border: none; background: transparent; color: var(--ink-2); padding: 6px 12px;
  font-size: 12.5px; cursor: pointer; font-family: inherit;
}
.view-tabs button.active { background: var(--primary); color: #fff; }

/* ---- 表格 ---- */
.table-card { margin-top: 14px; }
.table-scroll { max-height: 460px; overflow: auto; margin-top: 8px; border: 1px solid var(--line); border-radius: 8px; }
table { width: 100%; border-collapse: collapse; font-size: 13px; }
th, td { padding: 7px 12px; text-align: center; border-bottom: 1px solid var(--line); font-variant-numeric: tabular-nums; }
thead th { position: sticky; top: 0; background: #f8fafc; color: var(--ink-2); font-weight: 600; z-index: 2; }
tbody tr.day { background: #fffaf4; }
tbody tr.night { background: #f1f5f9; color: #64748b; }
tbody tr:hover { background: #fff1e6; }

/* ---- 页脚 ---- */
footer { margin-top: 16px; padding: 14px 16px; background: var(--card); border: 1px solid var(--line); border-radius: var(--radius); font-size: 12.5px; color: var(--ink-2); line-height: 1.7; }
footer p { margin: 6px 0; }
.contact-row { margin-top: 10px !important; }
.contact-row a { color: var(--primary-dark); text-decoration: none; border-bottom: 1px dotted var(--primary); }
.contact-row a:hover { text-decoration: underline; }

.ver { float: right; color: var(--ink-3); font-size: 12px; }

/* ---- 帮助提示条（结果卡片上方） ---- */
.help-tip {
  display: flex; align-items: center; gap: 10px; flex-wrap: wrap;
  background: #fff7ed; border: 1px solid #fed7aa; border-radius: 10px;
  padding: 9px 14px; margin-top: 14px; font-size: 13px; color: #9a3412;
}
.help-tip button {
  border: 1px solid var(--primary); background: var(--primary); color: #fff;
  border-radius: 999px; padding: 4px 14px; font-size: 12.5px;
  cursor: pointer; font-family: inherit; transition: background .15s;
}
.help-tip button:hover { background: var(--primary-dark); }

/* ---- 帮助按钮 / 语言 / 角度格式按钮 ---- */
.help-btn, .lang-btn {
  border: 1px solid rgba(255,255,255,.5); background: rgba(255,255,255,.14);
  color: #fff; border-radius: 999px; padding: 5px 14px;
  font-size: 12.5px; cursor: pointer; font-family: inherit;
  transition: background .15s;
}
.lang-btn { white-space: nowrap; }
.help-btn:hover { background: rgba(255,255,255,.3); }

/* ---- 帮助模态框 ---- */
.help-mask {
  position: fixed; inset: 0; z-index: 3000;
  background: rgba(15, 23, 42, .55);
  display: none; align-items: center; justify-content: center;
  padding: 24px;
}
.help-mask.open { display: flex; }
.help-modal {
  background: #fff; border-radius: 14px; max-width: 860px; width: 100%;
  max-height: 88vh; display: flex; flex-direction: column;
  box-shadow: 0 24px 60px rgba(0,0,0,.35);
  animation: helpIn .18s ease-out;
}
@keyframes helpIn {
  from { opacity: 0; transform: translateY(14px) scale(.98); }
  to   { opacity: 1; transform: translateY(0) scale(1); }
}
.help-head {
  display: flex; align-items: center; justify-content: space-between;
  padding: 14px 20px; border-bottom: 1px solid var(--line);
  background: linear-gradient(135deg, #7c2d12 0%, #c2410c 60%, #ea580c 100%);
  color: #fff; border-radius: 14px 14px 0 0;
}
.help-head h2 { font-size: 17px; }
.help-close {
  border: none; background: rgba(255,255,255,.18); color: #fff;
  width: 30px; height: 30px; border-radius: 50%; font-size: 14px;
  cursor: pointer; line-height: 1; transition: background .15s;
}
.help-close:hover { background: rgba(255,255,255,.36); }
.help-body { padding: 18px 22px 24px; overflow-y: auto; line-height: 1.75; }
.help-body h3 { font-size: 15px; color: var(--primary-dark); margin: 20px 0 8px; }
.help-body h3:first-child { margin-top: 0; }
.help-fig { background: #f8fafc; border: 1px solid var(--line); border-radius: 10px; padding: 10px; }
.help-fig-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 8px; }
.help-fig-grid svg { width: 100%; height: auto; display: block; }
.help-figcap { font-size: 12px; color: var(--ink-3); text-align: center; margin-top: 6px; }
@media (max-width: 720px) { .help-fig-grid { grid-template-columns: 1fr; } }
.help-table { width: 100%; border-collapse: collapse; font-size: 13px; margin-top: 4px; }
.help-table th {
  background: #f8fafc; color: var(--ink-2); text-align: left;
  padding: 8px 10px; border: 1px solid var(--line); font-weight: 600;
}
.help-table td { padding: 8px 10px; border: 1px solid var(--line); vertical-align: top; }
.help-table td:first-child { white-space: nowrap; font-weight: 600; color: var(--ink); }
.help-list { padding-left: 20px; font-size: 13px; }
.help-list li { margin: 5px 0; }
.help-note {
  font-size: 12.5px; color: var(--ink-2); background: #fff7ed;
  border: 1px solid #fed7aa; border-radius: 8px; padding: 10px 12px;
}

/* ---- 响应式 ---- */
@media (max-width: 1100px) {
  .layout { grid-template-columns: 1fr; }
  .charts { grid-template-columns: 1fr; }
  #map { height: clamp(420px, calc(100vh - 140px), 640px); }
}

/* ---- 手机（≤600px）：图层按钮移到搜索框下一行，避免与搜索框争抢宽度被截断 ---- */
@media (max-width: 600px) {
  .geo-search { width: calc(100% - 16px); top: 8px; left: 8px; }
  .layer-btns { top: 50px; right: 8px; }
  .layer-btns button { padding: 6px 9px; font-size: 11.5px; }
  .map-locinfo { top: 96px; left: 8px; }
  .map-legend { bottom: 10px; left: 8px; font-size: 11px; padding: 7px 10px; }
}

/* ---- 打印 ---- */
@media print {
  body { background: #fff; font-size: 12px; }
  .topbar, .panel, .map-wrap, .no-print, footer { display: none !important; }
  main { padding: 0; max-width: 100%; }
  .cards { grid-template-columns: repeat(6, 1fr); margin-top: 0; }
  .card { box-shadow: none; padding: 6px; }
  .charts { grid-template-columns: 1fr 1fr; margin-top: 10px; }
  .chart-card, .table-card { box-shadow: none; padding: 8px; page-break-inside: avoid; }
  .chart { height: 380px; }
  .table-scroll { max-height: none; overflow: visible; }
}