/* 小賽 AI 樂透預測 — 靜態內容頁共用樣式（文章、指南、信任頁）。
   深色主題，沿用首頁與 ai-lottery-guide.html 的視覺語言。 */

:root {
  color-scheme: dark;
  font-family: Inter, "Noto Sans TC", "Microsoft JhengHei", system-ui, sans-serif;
  background: #07111f;
  color: #e5eefb;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  background:
    radial-gradient(circle at 14% 8%, rgba(45, 212, 191, 0.16), transparent 32%),
    radial-gradient(circle at 88% 20%, rgba(59, 130, 246, 0.16), transparent 34%),
    linear-gradient(135deg, #06121b 0%, #0a1020 54%, #111827 100%);
}

a {
  color: #67e8f9;
}

/* 頂部導覽 */
.site-nav {
  width: min(940px, calc(100% - 32px));
  margin: 0 auto;
  padding: 22px 0 0;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px 20px;
}

.site-nav .brand {
  font-weight: 700;
  color: #e5eefb;
  text-decoration: none;
  font-size: 17px;
  margin-right: auto;
}

.site-nav a:not(.brand) {
  color: #94a3b8;
  text-decoration: none;
  font-size: 15px;
}

.site-nav a:not(.brand):hover {
  color: #67e8f9;
}

main {
  width: min(940px, calc(100% - 32px));
  margin: 0 auto;
  padding: 32px 0 56px;
}

article {
  border: 1px solid rgba(148, 163, 184, 0.22);
  border-radius: 18px;
  background: rgba(15, 23, 42, 0.78);
  box-shadow: 0 24px 80px rgba(0, 0, 0, 0.28);
  padding: clamp(24px, 5vw, 48px);
}

.back-link {
  display: inline-flex;
  margin-bottom: 24px;
  color: #94a3b8;
  text-decoration: none;
}

.eyebrow {
  text-transform: uppercase;
  letter-spacing: 0.18em;
  font-size: 12px;
  color: #5eead4;
  margin: 0 0 10px;
}

h1 {
  margin: 0 0 14px;
  font-size: clamp(30px, 5vw, 50px);
  line-height: 1.12;
}

h2 {
  margin: 36px 0 12px;
  font-size: 24px;
  scroll-margin-top: 80px;
}

h3 {
  margin: 24px 0 8px;
  font-size: 19px;
}

p,
li {
  color: #cbd5e1;
  font-size: 16px;
  line-height: 1.85;
}

ul,
ol {
  padding-left: 22px;
}

.lead {
  color: #dbeafe;
  font-size: 18px;
  line-height: 1.8;
}

.meta {
  color: #64748b;
  font-size: 14px;
  margin: 0 0 20px;
}

/* 表格（玩法、賠率、期望值） */
.table-wrap {
  overflow-x: auto;
  margin: 18px 0;
}

table {
  width: 100%;
  border-collapse: collapse;
  font-size: 15px;
}

th,
td {
  border: 1px solid rgba(148, 163, 184, 0.2);
  padding: 10px 12px;
  text-align: left;
  color: #cbd5e1;
}

th {
  background: rgba(45, 212, 191, 0.08);
  color: #e5eefb;
  font-weight: 600;
}

/* 提示框 */
.notice {
  margin-top: 28px;
  padding: 16px 18px;
  border: 1px solid rgba(251, 191, 36, 0.28);
  border-radius: 12px;
  background: rgba(251, 191, 36, 0.08);
  color: #fde68a;
}

.callout {
  margin: 22px 0;
  padding: 16px 18px;
  border: 1px solid rgba(45, 212, 191, 0.28);
  border-radius: 12px;
  background: rgba(45, 212, 191, 0.07);
  color: #ccfbf1;
}

/* 文章索引卡片 */
.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 16px;
  margin: 24px 0;
}

.card {
  display: block;
  border: 1px solid rgba(148, 163, 184, 0.22);
  border-radius: 14px;
  background: rgba(15, 23, 42, 0.6);
  padding: 18px 20px;
  text-decoration: none;
  transition: border-color 0.18s ease, transform 0.18s ease;
}

.card:hover {
  border-color: rgba(94, 234, 212, 0.5);
  transform: translateY(-2px);
}

.card h3 {
  margin: 0 0 6px;
  color: #e5eefb;
  font-size: 17px;
}

.card p {
  margin: 0;
  font-size: 14px;
  color: #94a3b8;
  line-height: 1.6;
}

/* 名詞解釋 */
dl.glossary dt {
  color: #5eead4;
  font-weight: 600;
  font-size: 17px;
  margin-top: 22px;
}

dl.glossary dd {
  margin: 6px 0 0;
  color: #cbd5e1;
  line-height: 1.8;
}

/* FAQ */
details.faq {
  border: 1px solid rgba(148, 163, 184, 0.2);
  border-radius: 12px;
  background: rgba(15, 23, 42, 0.55);
  padding: 4px 18px;
  margin: 12px 0;
}

details.faq summary {
  cursor: pointer;
  font-weight: 600;
  color: #e5eefb;
  padding: 14px 0;
  font-size: 16px;
}

details.faq p {
  margin-top: 0;
}

/* 頁尾 */
.site-footer {
  width: min(940px, calc(100% - 32px));
  margin: 0 auto;
  padding: 28px 0 56px;
  border-top: 1px solid rgba(148, 163, 184, 0.16);
  color: #64748b;
  font-size: 14px;
}

.site-footer a {
  color: #94a3b8;
  text-decoration: none;
  margin-right: 16px;
}

.site-footer .disclaimer {
  margin-top: 14px;
  line-height: 1.7;
}