/* ============================================
   彩票开奖查询与走势分析平台 - 主样式表
   视觉系统：深空蓝 + 红球红 + 纯白
   ============================================ */

/* CSS Reset & Base */
*, *::before, *::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

:root {
  --color-primary: #0B192C;
  --color-primary-light: #112240;
  --color-primary-dark: #060d1a;
  --color-accent: #E63946;
  --color-accent-light: #ff4d5a;
  --color-white: #FFFFFF;
  --color-gray-100: #f8f9fa;
  --color-gray-200: #e9ecef;
  --color-gray-300: #ccd6e0;
  --color-gray-600: #6c757d;
  --color-blue-glow: #4fc3f7;
  --font-heading: 'Noto Sans SC', 'PingFang SC', 'Microsoft YaHei', sans-serif;
  --font-body: 'Noto Sans SC', 'PingFang SC', 'Microsoft YaHei', sans-serif;
  --font-mono: 'Roboto Mono', 'Courier New', monospace;
  --line-height: 1.6;
  --radius: 8px;
  --shadow: 0 4px 24px rgba(0, 0, 0, 0.3);
  --transition: all 0.3s ease;
}

html {
  font-size: 16px;
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-body);
  font-size: 1rem;
  line-height: var(--line-height);
  color: var(--color-white);
  background-color: var(--color-primary);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

a {
  color: var(--color-blue-glow);
  text-decoration: none;
  transition: var(--transition);
}

a:hover {
  color: var(--color-accent-light);
}

img {
  max-width: 100%;
  height: auto;
  display: block;
}

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  font-weight: 700;
  line-height: 1.3;
  margin-bottom: 0.5em;
}

h1 { font-size: 2.2rem; }
h2 { font-size: 1.8rem; }
h3 { font-size: 1.4rem; }
h4 { font-size: 1.2rem; }
h5 { font-size: 1.05rem; }
h6 { font-size: 0.95rem; }

p {
  margin-bottom: 1em;
  font-size: 0.95rem;
}

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
}

/* ============================================
   Header & Navigation
   ============================================ */
.site-header {
  background: var(--color-primary-dark);
  border-bottom: 1px solid rgba(79, 195, 247, 0.15);
  position: sticky;
  top: 0;
  z-index: 1000;
  backdrop-filter: blur(10px);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px 20px;
  max-width: 1200px;
  margin: 0 auto;
}

.site-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 1.3rem;
  font-weight: 700;
  color: var(--color-white);
}

.site-logo .logo-icon {
  width: 36px;
  height: 36px;
  background: linear-gradient(135deg, var(--color-accent), var(--color-blue-glow));
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1rem;
  font-weight: 900;
}

.main-nav {
  display: flex;
  align-items: center;
}

.nav-list {
  display: flex;
  list-style: none;
  gap: 4px;
}

.nav-list li a {
  display: block;
  padding: 8px 16px;
  color: var(--color-gray-300);
  font-size: 0.9rem;
  border-radius: var(--radius);
  transition: var(--transition);
}

.nav-list li a:hover,
.nav-list li a.active {
  color: var(--color-white);
  background: rgba(79, 195, 247, 0.1);
}

.mobile-menu-btn {
  display: none;
  background: none;
  border: none;
  color: var(--color-white);
  font-size: 1.5rem;
  cursor: pointer;
  padding: 8px;
}

/* ============================================
   Hero Section
   ============================================ */
.hero-section {
  position: relative;
  min-height: 520px;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  overflow: hidden;
  background: linear-gradient(180deg, var(--color-primary-dark) 0%, var(--color-primary) 100%);
}

.hero-bg {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.35;
}

.hero-content {
  position: relative;
  z-index: 2;
  padding: 60px 20px;
  max-width: 800px;
}

.hero-content h1 {
  font-size: 2.5rem;
  margin-bottom: 16px;
  text-shadow: 0 2px 20px rgba(0,0,0,0.5);
}

.hero-content h1 .highlight {
  color: var(--color-accent);
}

.hero-subtitle {
  font-size: 1.1rem;
  color: var(--color-gray-300);
  margin-bottom: 24px;
}

.compliance-badge {
  display: inline-block;
  background: rgba(230, 57, 70, 0.15);
  border: 1px solid var(--color-accent);
  color: var(--color-accent-light);
  padding: 8px 20px;
  border-radius: 30px;
  font-size: 0.85rem;
  margin-bottom: 30px;
}

.hero-cta {
  display: flex;
  gap: 16px;
  justify-content: center;
  flex-wrap: wrap;
}

.btn {
  display: inline-block;
  padding: 12px 28px;
  border-radius: var(--radius);
  font-size: 0.95rem;
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition);
  border: none;
  text-align: center;
}

.btn-primary {
  background: var(--color-accent);
  color: var(--color-white);
}

.btn-primary:hover {
  background: var(--color-accent-light);
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(230, 57, 70, 0.4);
  color: var(--color-white);
}

.btn-outline {
  background: transparent;
  border: 1px solid var(--color-blue-glow);
  color: var(--color-blue-glow);
}

.btn-outline:hover {
  background: rgba(79, 195, 247, 0.1);
  transform: translateY(-2px);
  color: var(--color-blue-glow);
}

/* ============================================
   Section Common Styles
   ============================================ */
.section {
  padding: 60px 0;
}

.section-header {
  text-align: center;
  margin-bottom: 40px;
}

.section-header h2 {
  position: relative;
  display: inline-block;
  padding-bottom: 12px;
}

.section-header h2::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 60px;
  height: 3px;
  background: linear-gradient(90deg, var(--color-accent), var(--color-blue-glow));
  border-radius: 2px;
}

.section-header p {
  color: var(--color-gray-300);
  margin-top: 12px;
  font-size: 0.95rem;
}

/* ============================================
   Draw Results Cards
   ============================================ */
.draw-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(340px, 1fr));
  gap: 24px;
}

.draw-card {
  background: var(--color-primary-light);
  border: 1px solid rgba(79, 195, 247, 0.1);
  border-radius: var(--radius);
  padding: 24px;
  transition: var(--transition);
}

.draw-card:hover {
  border-color: rgba(79, 195, 247, 0.3);
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.3);
  transform: translateY(-3px);
}

.draw-card-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 16px;
}

.draw-card-header h3 {
  font-size: 1.1rem;
  margin-bottom: 0;
}

.draw-card-header .draw-date {
  font-size: 0.8rem;
  color: var(--color-gray-600);
  font-family: var(--font-mono);
}

.ball-row {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  margin-bottom: 16px;
}

.ball {
  width: 38px;
  height: 38px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-mono);
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--color-white);
}

.ball-red {
  background: radial-gradient(circle at 35% 35%, #ff6b6b, var(--color-accent));
  box-shadow: 0 2px 8px rgba(230, 57, 70, 0.4);
}

.ball-blue {
  background: radial-gradient(circle at 35% 35%, #64b5f6, #1565c0);
  box-shadow: 0 2px 8px rgba(21, 101, 192, 0.4);
}

.draw-card-footer {
  display: flex;
  gap: 12px;
}

.draw-card-footer a {
  font-size: 0.8rem;
  padding: 6px 12px;
  border: 1px solid rgba(79, 195, 247, 0.3);
  border-radius: 4px;
  color: var(--color-blue-glow);
}

.draw-card-footer a:hover {
  background: rgba(79, 195, 247, 0.1);
}

/* ============================================
   Trend Chart Section
   ============================================ */
.trend-preview {
  background: var(--color-primary-light);
  border-radius: var(--radius);
  padding: 30px;
  border: 1px solid rgba(79, 195, 247, 0.1);
}

.trend-preview img {
  width: 100%;
  border-radius: var(--radius);
  margin-bottom: 20px;
}

.trend-tags {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
}

.trend-tag {
  background: rgba(79, 195, 247, 0.1);
  border: 1px solid rgba(79, 195, 247, 0.2);
  padding: 6px 14px;
  border-radius: 20px;
  font-size: 0.8rem;
  color: var(--color-blue-glow);
}

/* ============================================
   Tools Section
   ============================================ */
.tools-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 20px;
}

.tool-card {
  background: var(--color-primary-light);
  border: 1px solid rgba(79, 195, 247, 0.1);
  border-radius: var(--radius);
  padding: 28px;
  text-align: center;
  transition: var(--transition);
}

.tool-card:hover {
  border-color: var(--color-accent);
  transform: translateY(-3px);
}

.tool-icon {
  width: 56px;
  height: 56px;
  margin: 0 auto 16px;
  background: linear-gradient(135deg, rgba(230, 57, 70, 0.2), rgba(79, 195, 247, 0.2));
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
}

.tool-card h4 {
  margin-bottom: 8px;
}

.tool-card p {
  color: var(--color-gray-300);
  font-size: 0.85rem;
}

/* ============================================
   News Section
   ============================================ */
.news-list {
  display: grid;
  gap: 16px;
}

.news-item {
  display: flex;
  align-items: center;
  gap: 16px;
  background: var(--color-primary-light);
  border: 1px solid rgba(79, 195, 247, 0.08);
  border-radius: var(--radius);
  padding: 16px 20px;
  transition: var(--transition);
}

.news-item:hover {
  border-color: rgba(79, 195, 247, 0.25);
}

.news-date {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--color-gray-600);
  white-space: nowrap;
}

.news-title {
  font-size: 0.9rem;
  color: var(--color-white);
  flex: 1;
}

.news-tag {
  font-size: 0.7rem;
  padding: 3px 8px;
  border-radius: 3px;
  background: rgba(230, 57, 70, 0.15);
  color: var(--color-accent-light);
}

/* ============================================
   Archive Section
   ============================================ */
.archive-tabs {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  margin-bottom: 20px;
}

.archive-tab {
  padding: 8px 18px;
  border: 1px solid rgba(79, 195, 247, 0.2);
  border-radius: 20px;
  font-size: 0.85rem;
  color: var(--color-gray-300);
  cursor: pointer;
  transition: var(--transition);
  background: none;
}

.archive-tab:hover,
.archive-tab.active {
  background: rgba(79, 195, 247, 0.15);
  color: var(--color-blue-glow);
  border-color: var(--color-blue-glow);
}

.archive-content {
  background: var(--color-primary-light);
  border-radius: var(--radius);
  padding: 24px;
  border: 1px solid rgba(79, 195, 247, 0.1);
}

/* ============================================
   Video Section
   ============================================ */
.video-wrapper {
  position: relative;
  padding-bottom: 56.25%;
  height: 0;
  overflow: hidden;
  border-radius: var(--radius);
  margin-bottom: 20px;
  background: var(--color-primary-dark);
}

.video-wrapper video {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

/* ============================================
   Tables
   ============================================ */
.data-table-wrapper {
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
}

.data-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.85rem;
}

.data-table th,
.data-table td {
  padding: 12px 16px;
  text-align: center;
  border-bottom: 1px solid rgba(79, 195, 247, 0.1);
}

.data-table th {
  background: rgba(79, 195, 247, 0.08);
  font-weight: 600;
  color: var(--color-blue-glow);
  white-space: nowrap;
}

.data-table td {
  font-family: var(--font-mono);
}

.data-table tr:hover td {
  background: rgba(79, 195, 247, 0.04);
}

/* ============================================
   Footer
   ============================================ */
.site-footer {
  background: var(--color-primary-dark);
  border-top: 1px solid rgba(79, 195, 247, 0.1);
  padding: 50px 0 30px;
}

.footer-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 40px;
  margin-bottom: 40px;
}

.footer-col h4 {
  font-size: 1rem;
  margin-bottom: 16px;
  color: var(--color-white);
  position: relative;
  padding-bottom: 10px;
}

.footer-col h4::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 30px;
  height: 2px;
  background: var(--color-accent);
}

.footer-col p {
  font-size: 0.85rem;
  color: var(--color-gray-300);
  line-height: 1.7;
}

.footer-col ul {
  list-style: none;
}

.footer-col ul li {
  margin-bottom: 8px;
}

.footer-col ul li a {
  font-size: 0.85rem;
  color: var(--color-gray-300);
}

.footer-col ul li a:hover {
  color: var(--color-blue-glow);
}

.footer-contact li {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 10px;
  font-size: 0.85rem;
  color: var(--color-gray-300);
}

.footer-bottom {
  text-align: center;
  padding-top: 24px;
  border-top: 1px solid rgba(79, 195, 247, 0.08);
}

.footer-bottom p {
  font-size: 0.8rem;
  color: var(--color-gray-600);
}

.footer-bottom a {
  color: var(--color-gray-300);
}

/* ============================================
   Page Banner (Inner Pages)
   ============================================ */
.page-banner {
  position: relative;
  height: 280px;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  overflow: hidden;
  background: linear-gradient(180deg, var(--color-primary-dark), var(--color-primary));
}

.page-banner img {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.25;
}

.page-banner-content {
  position: relative;
  z-index: 2;
}

.page-banner-content h1 {
  font-size: 2rem;
}

.breadcrumb {
  margin-top: 12px;
  font-size: 0.85rem;
  color: var(--color-gray-300);
}

.breadcrumb a {
  color: var(--color-blue-glow);
}

/* ============================================
   Content Area (Inner Pages)
   ============================================ */
.content-area {
  padding: 50px 0;
}

.content-area article {
  max-width: 900px;
  margin: 0 auto;
}

.content-area article p {
  margin-bottom: 1.2em;
  color: var(--color-gray-200);
}

.content-area article h2 {
  margin-top: 2em;
  margin-bottom: 0.8em;
  padding-bottom: 8px;
  border-bottom: 1px solid rgba(79, 195, 247, 0.15);
}

.content-area article h3 {
  margin-top: 1.5em;
  margin-bottom: 0.6em;
}

.related-section {
  margin-top: 50px;
  padding-top: 30px;
  border-top: 1px solid rgba(79, 195, 247, 0.1);
}

.related-links {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 12px;
}

.related-links a {
  display: block;
  padding: 12px 16px;
  background: var(--color-primary-light);
  border: 1px solid rgba(79, 195, 247, 0.1);
  border-radius: var(--radius);
  font-size: 0.85rem;
  color: var(--color-gray-300);
}

.related-links a:hover {
  border-color: var(--color-blue-glow);
  color: var(--color-blue-glow);
}

/* ============================================
   Animations
   ============================================ */
@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.animate-in {
  animation: fadeInUp 0.6s ease forwards;
  opacity: 0;
}

.animate-delay-1 { animation-delay: 0.1s; }
.animate-delay-2 { animation-delay: 0.2s; }
.animate-delay-3 { animation-delay: 0.3s; }
.animate-delay-4 { animation-delay: 0.4s; }

/* ============================================
   Responsive Design
   ============================================ */
@media (max-width: 768px) {
  html { font-size: 14px; }

  .header-inner { padding: 10px 16px; }

  .main-nav { display: none; }
  .main-nav.active {
    display: flex;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: var(--color-primary-dark);
    border-bottom: 1px solid rgba(79, 195, 247, 0.15);
    padding: 16px;
  }

  .main-nav.active .nav-list {
    flex-direction: column;
    width: 100%;
  }

  .main-nav.active .nav-list li a {
    padding: 12px 16px;
  }

  .mobile-menu-btn { display: block; }

  .hero-section { min-height: 400px; }
  .hero-content h1 { font-size: 1.8rem; }
  .hero-cta { flex-direction: column; align-items: center; }

  .draw-grid { grid-template-columns: 1fr; }
  .tools-grid { grid-template-columns: 1fr 1fr; }

  .footer-grid { grid-template-columns: 1fr; gap: 30px; }

  .page-banner { height: 200px; }
  .page-banner-content h1 { font-size: 1.5rem; }

  .data-table-wrapper { margin: 0 -20px; padding: 0 20px; }
}

@media (max-width: 480px) {
  .tools-grid { grid-template-columns: 1fr; }
  .ball { width: 32px; height: 32px; font-size: 0.75rem; }
}