/* ============================================================
 * style.css —— 今日油价查询网（仅本站使用）
 * 能源绿行情表风格：浅绿底 + 左对齐头部 + 圆角外框仅横线表格（主视觉）。
 * 与金价站（居中金色渐变头部 / 深金表头）形态明显区分。
 * ============================================================ */
:root {
  --yl-brand: #059669;
  --yl-brand-dark: #065f46;
  --yl-brand-soft: #d1fae5;
  --yl-bg: #ecfdf5;
  --yl-text: #064e3b;
  --yl-muted: #047857;
  --yl-line: #a7f3d0;
  --yl-max: #dc2626;   /* 对比表最高价（红） */
  --yl-min: #16a34a;   /* 对比表最低价（绿） */
  --yl-radius: 12px;
}
* { box-sizing: border-box; }
body {
  margin: 0; background: var(--yl-bg); color: var(--yl-text);
  font-family: system-ui, -apple-system, "PingFang SC", "Microsoft YaHei", "Noto Sans CJK SC", sans-serif;
  line-height: 1.6;
}
.yl-wrap { max-width: 960px; margin: 0 auto; padding: 0 16px; }
a { color: inherit; }

/* ---------- 品牌条（左对齐大标题形态，白底 + 绿色粗底边） ---------- */
.yl-top { background: #ffffff; border-bottom: 4px solid var(--yl-brand); padding: 20px 0 18px; }
.yl-top-row { display: flex; align-items: center; justify-content: space-between; gap: 16px; }
.yl-brand { margin: 0; font-size: 28px; font-weight: 800; letter-spacing: 1px; color: var(--yl-brand-dark); }
.yl-slogan { margin: 6px 0 0; font-size: 13.5px; color: var(--yl-muted); }
.yl-mini {
  flex: 0 0 auto; margin: 0; text-align: center; font-size: 11px; color: var(--yl-brand-dark);
  border: 1px dashed var(--yl-line); border-radius: 10px; padding: 8px 10px; max-width: 170px; line-height: 1.7; background: var(--yl-bg);
}
@media (max-width: 520px) { .yl-mini { display: none; } }

/* ---------- 广告位（≤90px） ---------- */
.yl-ad {
  min-height: 60px; max-height: 90px; margin: 14px 0;
  border: 1px dashed var(--yl-line); border-radius: 10px;
  display: flex; align-items: center; justify-content: center;
  color: var(--yl-muted); font-size: 12.5px; background: #fff; overflow: hidden;
}

/* ---------- 内容区基座（FAQ / 对比表共用卡片，构建期生成 .yl-content） ---------- */
.yl-content {
  background: #fff; border: 1px solid var(--yl-line);
  border-radius: var(--yl-radius); padding: 18px 20px; margin: 18px 0;
}
.yl-content h2 { font-size: 17px; margin: 0 0 12px; color: var(--yl-brand-dark); padding-left: 10px; border-left: 4px solid var(--yl-brand); }
.yl-content article { margin-bottom: 14px; }
.yl-content article:last-child { margin-bottom: 0; }
.yl-content h3 { font-size: 14.5px; margin: 0 0 6px; }
.yl-content p { font-size: 13.5px; color: #4b5563; margin: 0 0 4px; }
.yl-src-note { font-size: 12px; color: var(--yl-muted); }
.yl-ai-badge {
  display: inline-block; padding: 1px 8px; margin-left: 6px;
  font-size: 11px; font-weight: 600; vertical-align: 1px;
  color: var(--yl-brand-dark); background: var(--yl-brand-soft); border: 1px solid var(--yl-line); border-radius: 999px;
}

/* ---------- 对比表（主视觉）：圆角外框 + 仅横线 + 首列加粗 + 表头浅绿 ---------- */
.yl-compare { padding: 20px 20px 14px; box-shadow: 0 10px 26px rgba(6, 95, 70, .08); }
.yl-table-box {
  border: 2px solid var(--yl-brand); border-radius: 12px;     /* 圆角外框 */
  overflow: auto; max-height: 560px;                          /* 31 行过长：纵向滚动 + 表头吸附 */
  -webkit-overflow-scrolling: touch;
}
.yl-table { width: 100%; border-collapse: separate; border-spacing: 0; font-size: 13.5px; }
.yl-table th, .yl-table td { padding: 10px 14px; text-align: left; white-space: nowrap; }
.yl-table thead th {
  position: sticky; top: 0; z-index: 1;                       /* 纵向滚动时表头吸附 */
  background: var(--yl-brand-soft); color: var(--yl-brand-dark); font-weight: 700;
  border-bottom: 2px solid var(--yl-brand);
}
.yl-table tbody td { border-bottom: 1px solid var(--yl-line); }   /* 仅横线，无竖线 */
.yl-table tbody tr:last-child td { border-bottom: none; }
.yl-table tbody td:first-child { font-weight: 700; color: var(--yl-brand-dark); }  /* 首列加粗 */
.yl-table tbody tr:hover { background: #f0fdf4; }
.yl-table td.is-max { color: var(--yl-max); font-weight: 800; }
.yl-table td.is-min { color: var(--yl-min); font-weight: 800; }

/* ---------- 查询工具面板 ---------- */
.yl-hero { padding: 8px 0 4px; }
.yl-hero-title { font-size: 24px; margin: 0 0 6px; color: var(--yl-brand-dark); }
.yl-hero-title b { color: var(--yl-brand); }
.yl-sub { margin: 0 0 16px; font-size: 14px; color: var(--yl-muted); }

.yl-tool {
  background: #fff; border: 1px solid var(--yl-line); border-left: 5px solid var(--yl-brand); border-radius: var(--yl-radius);
  box-shadow: 0 1px 3px rgba(6, 95, 70, .06), 0 10px 28px rgba(6, 95, 70, .08);
  padding: 22px;
}
.yl-filters { display: flex; flex-direction: column; gap: 14px; }
.yl-filter-row { display: flex; gap: 12px; flex-wrap: wrap; }
.yl-field { display: flex; flex-direction: column; gap: 6px; }
.yl-filter-row .yl-field { flex: 1 1 180px; }
.yl-field label { font-size: 13px; color: var(--yl-muted); font-weight: 600; }
.yl-field select, .yl-field input {
  height: 44px; padding: 0 12px; font-size: 15px; color: var(--yl-text);
  border: 1px solid var(--yl-line); border-radius: 6px; background: #f0fdf4; outline: none;
}
.yl-field select:focus, .yl-field input:focus { border-color: var(--yl-brand); background: #fff; }
.yl-field .yl-hint { font-size: 12px; color: var(--yl-muted); }

/* 日期 chips（方形圆角，选中浅绿底深绿字，与金价站的实心胶囊区分） */
.yl-chips { display: flex; gap: 8px; flex-wrap: wrap; }
.yl-chips button {
  padding: 8px 16px; font-size: 14px; border: 1px solid var(--yl-line);
  border-radius: 8px; background: #fff; cursor: pointer; color: var(--yl-text);
  transition: all .15s ease; white-space: nowrap;
}
.yl-chips button:hover { border-color: var(--yl-brand); color: var(--yl-brand); }
.yl-chips button[aria-pressed="true"] {
  background: var(--yl-brand-soft); border-color: var(--yl-brand); color: var(--yl-brand-dark); font-weight: 700;
}

/* 胶囊按钮形态 */
.yl-actions { display: flex; gap: 10px; }
.yl-btn {
  height: 44px; padding: 0 30px; border: none; border-radius: 999px;
  font-size: 15px; font-weight: 600; cursor: pointer; transition: all .15s ease;
}
.yl-btn-primary { background: var(--yl-brand); color: #fff; }
.yl-btn-primary:hover:not(:disabled) { background: var(--yl-brand-dark); }
.yl-btn-primary:disabled { background: #b9e5d3; cursor: not-allowed; }
.yl-btn-ghost { background: transparent; color: var(--yl-muted); border: 1px solid var(--yl-line); }
.yl-btn-ghost:hover { color: var(--yl-text); border-color: var(--yl-muted); }

/* ---------- 四态结果区 ---------- */
.yl-result-zone { margin-top: 18px; min-height: 120px; }
.yl-state-banner { display: none; padding: 10px 14px; border-radius: 8px; font-size: 14px; margin-bottom: 12px; }
.yl-state-banner[data-kind="maintenance"] { display: block; background: #fef3c7; color: #92400e; border: 1px solid #fcd34d; }

/* 面板父容器默认隐藏，data-state 命中四态之一时才显示 */
.yl-panel { display: none; }
.yl-panel[data-state="idle"], .yl-panel[data-state="loading"],
.yl-panel[data-state="result"], .yl-panel[data-state="empty"] { display: block; }
.yl-panel-default, .yl-panel-loading, .yl-panel-result, .yl-panel-empty { display: none; }
.yl-panel[data-state="idle"]   .yl-panel-default,
.yl-panel[data-state="loading"] .yl-panel-loading,
.yl-panel[data-state="result"] .yl-panel-result,
.yl-panel[data-state="empty"]  .yl-panel-empty { display: block; }

.yl-panel-default { color: var(--yl-muted); font-size: 14px; padding: 16px 0; text-align: center; }
.yl-panel-loading { text-align: center; padding: 26px 0; color: var(--yl-muted); font-size: 14px; }
.yl-spinner {
  display: block; width: 26px; height: 26px; margin: 0 auto 10px; border-radius: 50%;
  border: 3px solid var(--yl-line); border-top-color: var(--yl-brand);
  animation: yl-spin .8s linear infinite;
}
@keyframes yl-spin { to { transform: rotate(360deg); } }

.yl-panel-result { text-align: center; padding: 8px 0 4px; }
.yl-result-headline { font-size: 15px; color: var(--yl-muted); margin: 0 0 10px; }
.yl-result-headline strong { color: var(--yl-brand-dark); font-size: 17px; }
.yl-fields {
  display: flex; flex-direction: column; gap: 10px;
  margin: 6px auto 12px; max-width: 460px; text-align: left;
}
.yl-fields-row {
  display: flex; justify-content: space-between; align-items: baseline; gap: 16px;
  padding: 10px 16px; background: #f0fdf4; border-left: 4px solid var(--yl-brand); border-radius: 6px;
}
.yl-fields-row .k { font-size: 13px; color: var(--yl-muted); }
.yl-fields-row .v { font-size: 17px; font-weight: 700; color: var(--yl-text); text-align: right; }
.yl-fields-row.yl-v-strong .v { font-size: 20px; color: var(--yl-brand-dark); }
.yl-result-meta { font-size: 12.5px; color: var(--yl-muted); margin: 12px 0 0; line-height: 1.7; }
.yl-result-meta .yl-src { color: var(--yl-brand-dark); font-weight: 600; }
.yl-result-meta .yl-note { color: var(--yl-max); }

.yl-panel-empty { text-align: center; padding: 20px 0 10px; }
.yl-empty-title { font-size: 16px; font-weight: 700; margin: 0 0 6px; }
.yl-empty-sub { font-size: 13.5px; color: var(--yl-muted); margin: 0 0 14px; }
.yl-empty-actions { display: flex; gap: 10px; justify-content: center; flex-wrap: wrap; }

/* ---------- 相关查询 ---------- */
.yl-links { margin: 26px 0 8px; }
.yl-links h2, .yl-cities h2 { font-size: 16px; margin: 0 0 10px; color: var(--yl-brand-dark); padding-left: 10px; border-left: 4px solid var(--yl-brand); }
.yl-chip-links { display: flex; flex-wrap: wrap; gap: 8px; }
.yl-chip-links a {
  padding: 8px 14px; background: #fff; border: 1px solid var(--yl-line);
  border-radius: 8px; font-size: 13.5px; text-decoration: none; color: var(--yl-text);
}
.yl-chip-links a:hover { border-color: var(--yl-brand); color: var(--yl-brand); }

/* ---------- 省份矩阵（栅格卡片，与金价站流式胶囊区分） ---------- */
.yl-cities { margin: 26px 0; }
.yl-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(92px, 1fr)); gap: 8px; }
.yl-grid a {
  padding: 9px 6px; background: #fff; border: 1px solid var(--yl-line);
  border-radius: 8px; font-size: 13px; text-decoration: none; color: var(--yl-text); text-align: center;
}
.yl-grid a:hover { border-color: var(--yl-brand); color: var(--yl-brand); background: #f0fdf4; }

/* ---------- 合规页脚（构建期生成：yl-foot / yl-links / yl-disc / yl-src / yl-ai；深绿底反白形态） ---------- */
.yl-foot { background: var(--yl-brand-dark); color: #d1fae5; margin-top: 24px; }
.yl-foot .yl-wrap { padding-top: 24px; padding-bottom: 32px; }
.yl-foot .yl-links { display: flex; flex-wrap: wrap; gap: 6px 18px; margin: 0 0 10px; font-size: 13px; }
.yl-foot a { color: #a7f3d0; text-decoration: none; }
.yl-foot a:hover { color: #fff; text-decoration: underline; }
.yl-foot .yl-strong { font-weight: 700; color: #fff; }
.yl-foot .yl-disc, .yl-foot .yl-src, .yl-foot .yl-ai { margin: 0 0 6px; font-size: 12.5px; color: #a7f3d0; line-height: 1.9; }

/* ---------- 移动适配 ---------- */
@media (max-width: 520px) {
  .yl-tool { padding: 16px; }
  .yl-filter-row { flex-direction: column; }
  .yl-chips { flex-wrap: nowrap; overflow-x: auto; padding-bottom: 4px; }
  .yl-chips button { flex: 0 0 auto; }
  .yl-table-box { max-height: 65vh; }
  .yl-table { font-size: 12.5px; min-width: 560px; }          /* 5 列横向滚动 */
  .yl-content { padding: 14px 14px; }
  .yl-grid { grid-template-columns: repeat(3, 1fr); }
}