/* ===== 每日大赛热榜与趋势观察 - 第24套模板样式 ===== */
:root {
  --primary: #E11D48;
  --secondary: #FFF1F2;
  --bg: #FFFFFF;
  --card: #FFE4E6;
  --accent: #F97316;
  --text: #1F2937;
  --radius: 14px;
  --shadow: 0 10px 30px rgba(0,0,0,0.12);
  --font-title: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
  --font-body: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
  --font-mono: "JetBrains Mono", "Courier New", monospace;
  --transition: all 0.3s ease;
}

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

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

body {
  font-family: var(--font-body);
  color: var(--text);
  background: var(--bg);
  line-height: 1.8;
  -webkit-font-smoothing: antialiased;
}

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

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

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

ul, ol {
  list-style: none;
}

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

.section {
  padding: 60px 0;
}

.section-title {
  font-family: var(--font-title);
  font-size: 2rem;
  font-weight: 800;
  color: var(--text);
  margin-bottom: 12px;
  position: relative;
}

.section-title::before {
  content: "";
  display: inline-block;
  width: 6px;
  height: 28px;
  background: var(--primary);
  border-radius: 3px;
  margin-right: 12px;
  vertical-align: middle;
}

.section-desc {
  color: #6B7280;
  font-size: 1rem;
  margin-bottom: 32px;
  max-width: 680px;
}

/* ===== Header ===== */
.site-header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: rgba(255,255,255,0.95);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid #F3F4F6;
  padding: 12px 0;
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.site-logo {
  font-family: var(--font-title);
  font-size: 1.4rem;
  font-weight: 900;
  color: var(--primary);
  display: flex;
  align-items: center;
  gap: 8px;
}

.site-logo .logo-icon {
  width: 32px;
  height: 32px;
}

.nav-menu {
  display: flex;
  gap: 24px;
  align-items: center;
}

.nav-menu a {
  color: var(--text);
  font-size: 0.95rem;
  font-weight: 500;
  padding: 6px 0;
  position: relative;
}

.nav-menu a::after {
  content: "";
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--primary);
  transition: var(--transition);
}

.nav-menu a:hover::after,
.nav-menu a.active::after {
  width: 100%;
}

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  padding: 8px;
}

.nav-toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--text);
  border-radius: 2px;
  transition: var(--transition);
}

/* ===== Status Bar ===== */
.status-bar {
  background: linear-gradient(90deg, var(--primary), #BE123C);
  color: #fff;
  text-align: center;
  padding: 8px 16px;
  font-size: 0.85rem;
  font-weight: 500;
  animation: pulse-bar 3s ease-in-out infinite;
}

@keyframes pulse-bar {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.85; }
}

/* ===== Hero Section ===== */
.hero {
  background: linear-gradient(135deg, var(--secondary) 0%, #FFFFFF 50%, var(--card) 100%);
  padding: 80px 0 60px;
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: "";
  position: absolute;
  top: -50%;
  right: -20%;
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, rgba(225,29,72,0.08) 0%, transparent 70%);
  border-radius: 50%;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
  align-items: start;
}

.hero-title {
  font-family: var(--font-title);
  font-size: 2.8rem;
  font-weight: 900;
  color: var(--text);
  line-height: 1.3;
  margin-bottom: 16px;
}

.hero-title .highlight {
  color: var(--primary);
}

.hero-subtitle {
  font-size: 1.1rem;
  color: #6B7280;
  margin-bottom: 24px;
  line-height: 1.7;
}

.hero-actions {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
}

/* ===== Buttons ===== */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 24px;
  border-radius: var(--radius);
  font-size: 0.95rem;
  font-weight: 600;
  cursor: pointer;
  border: none;
  transition: var(--transition);
}

.btn-primary {
  background: var(--primary);
  color: #fff;
}

.btn-primary:hover {
  background: #BE123C;
  color: #fff;
  transform: translateY(-2px);
  box-shadow: 0 8px 20px rgba(225,29,72,0.3);
}

.btn-outline {
  background: transparent;
  color: var(--primary);
  border: 2px solid var(--primary);
}

.btn-outline:hover {
  background: var(--primary);
  color: #fff;
}

/* ===== Hot List ===== */
.hot-list {
  background: var(--bg);
}

.rank-table {
  width: 100%;
  border-collapse: collapse;
}

.rank-table thead {
  background: var(--secondary);
}

.rank-table th,
.rank-table td {
  padding: 14px 16px;
  text-align: left;
  border-bottom: 1px solid #F3F4F6;
}

.rank-table th {
  font-weight: 700;
  font-size: 0.85rem;
  color: #6B7280;
  text-transform: uppercase;
}

.rank-num {
  font-family: var(--font-mono);
  font-weight: 900;
  font-size: 1.2rem;
  color: var(--primary);
}

.rank-num.top3 {
  color: var(--accent);
}

.trend-up {
  color: var(--primary);
  font-weight: 700;
}

.trend-down {
  color: #10B981;
  font-weight: 700;
}

.trend-new {
  color: var(--accent);
  font-weight: 700;
  font-size: 0.8rem;
  background: #FFF7ED;
  padding: 2px 8px;
  border-radius: 4px;
}

.trend-steady {
  color: #9CA3AF;
}

.heat-value {
  font-family: var(--font-mono);
  font-weight: 700;
  color: var(--primary);
}

/* ===== Cards ===== */
.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: 24px;
}

.card {
  background: var(--bg);
  border: 1px solid #F3F4F6;
  border-radius: var(--radius);
  padding: 24px;
  transition: var(--transition);
  position: relative;
  overflow: hidden;
}

.card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow);
  border-color: var(--primary);
}

.card-badge {
  position: absolute;
  top: 16px;
  right: 16px;
  background: var(--primary);
  color: #fff;
  font-size: 0.75rem;
  font-weight: 700;
  padding: 4px 10px;
  border-radius: 20px;
}

.card-title {
  font-size: 1.1rem;
  font-weight: 700;
  margin-bottom: 8px;
  color: var(--text);
}

.card-text {
  font-size: 0.9rem;
  color: #6B7280;
  line-height: 1.6;
}

.card-meta {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-top: 16px;
  font-size: 0.8rem;
  color: #9CA3AF;
}

/* ===== Trend Curve ===== */
.trend-chart {
  background: var(--bg);
  border: 1px solid #F3F4F6;
  border-radius: var(--radius);
  padding: 24px;
  position: relative;
}

.chart-canvas {
  width: 100%;
  height: 200px;
  position: relative;
}

.chart-svg {
  width: 100%;
  height: 100%;
}

.chart-line {
  fill: none;
  stroke: var(--primary);
  stroke-width: 3;
  stroke-linecap: round;
  stroke-dasharray: 1000;
  stroke-dashoffset: 1000;
  animation: draw-line 2s ease forwards;
}

@keyframes draw-line {
  to { stroke-dashoffset: 0; }
}

.chart-area {
  fill: url(#gradient-area);
  opacity: 0.3;
}

/* ===== Timeline ===== */
.timeline {
  position: relative;
  padding-left: 32px;
}

.timeline::before {
  content: "";
  position: absolute;
  left: 12px;
  top: 0;
  bottom: 0;
  width: 2px;
  background: linear-gradient(to bottom, var(--primary), var(--card));
}

.timeline-item {
  position: relative;
  padding: 20px 0;
  padding-left: 24px;
}

.timeline-item::before {
  content: "";
  position: absolute;
  left: -26px;
  top: 28px;
  width: 12px;
  height: 12px;
  background: var(--primary);
  border-radius: 50%;
  border: 3px solid var(--secondary);
  animation: pulse-dot 2s ease-in-out infinite;
}

@keyframes pulse-dot {
  0%, 100% { transform: scale(1); }
  50% { transform: scale(1.3); }
}

.timeline-time {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--primary);
  font-weight: 600;
  margin-bottom: 4px;
}

.timeline-title {
  font-weight: 700;
  font-size: 1rem;
  margin-bottom: 4px;
}

.timeline-desc {
  font-size: 0.9rem;
  color: #6B7280;
}

/* ===== Word Cloud ===== */
.word-cloud {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  justify-content: center;
  padding: 40px 20px;
}

.word-cloud .word {
  display: inline-block;
  padding: 6px 16px;
  border-radius: 20px;
  background: var(--secondary);
  color: var(--primary);
  font-weight: 600;
  transition: var(--transition);
  animation: float-word 4s ease-in-out infinite;
}

.word-cloud .word:nth-child(odd) {
  animation-delay: -2s;
}

.word-cloud .word.large {
  font-size: 1.3rem;
  background: var(--primary);
  color: #fff;
}

.word-cloud .word.medium {
  font-size: 1rem;
}

.word-cloud .word.small {
  font-size: 0.85rem;
  background: var(--card);
  color: #6B7280;
}

@keyframes float-word {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-4px); }
}

/* ===== FAQ ===== */
.faq-list {
  max-width: 800px;
}

.faq-item {
  border: 1px solid #F3F4F6;
  border-radius: var(--radius);
  margin-bottom: 12px;
  overflow: hidden;
}

.faq-question {
  padding: 18px 24px;
  font-weight: 700;
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
  background: var(--secondary);
  transition: var(--transition);
}

.faq-question:hover {
  background: var(--card);
}

.faq-question::after {
  content: "+";
  font-size: 1.4rem;
  color: var(--primary);
  font-weight: 300;
  transition: var(--transition);
}

.faq-item.active .faq-question::after {
  transform: rotate(45deg);
}

.faq-answer {
  padding: 0 24px;
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.3s ease, padding 0.3s ease;
}

.faq-item.active .faq-answer {
  padding: 18px 24px;
  max-height: 500px;
}

/* ===== Breadcrumb ===== */
.breadcrumb {
  padding: 16px 0;
  font-size: 0.85rem;
  color: #9CA3AF;
}

.breadcrumb a {
  color: #6B7280;
}

.breadcrumb a:hover {
  color: var(--primary);
}

.breadcrumb span {
  margin: 0 8px;
}

/* ===== Footer ===== */
.site-footer {
  background: var(--text);
  color: #D1D5DB;
  padding: 60px 0 30px;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 40px;
  margin-bottom: 40px;
}

.footer-brand {
  font-size: 1.2rem;
  font-weight: 800;
  color: #fff;
  margin-bottom: 12px;
}

.footer-desc {
  font-size: 0.9rem;
  line-height: 1.7;
  color: #9CA3AF;
}

.footer-title {
  font-weight: 700;
  color: #fff;
  margin-bottom: 16px;
  font-size: 0.95rem;
}

.footer-links a {
  display: block;
  color: #9CA3AF;
  font-size: 0.9rem;
  padding: 4px 0;
}

.footer-links a:hover {
  color: var(--primary);
}

.footer-bottom {
  border-top: 1px solid #374151;
  padding-top: 24px;
  text-align: center;
  font-size: 0.8rem;
  color: #6B7280;
}

/* ===== Page Header ===== */
.page-header {
  background: linear-gradient(135deg, var(--secondary) 0%, var(--card) 100%);
  padding: 48px 0 36px;
}

.page-header h1 {
  font-family: var(--font-title);
  font-size: 2.2rem;
  font-weight: 900;
  color: var(--text);
  margin-bottom: 12px;
}

.page-header p {
  font-size: 1rem;
  color: #6B7280;
  max-width: 600px;
}

/* ===== Search ===== */
.search-box {
  display: flex;
  max-width: 600px;
  margin: 0 auto;
  border: 2px solid var(--primary);
  border-radius: var(--radius);
  overflow: hidden;
}

.search-box input {
  flex: 1;
  padding: 14px 20px;
  border: none;
  font-size: 1rem;
  outline: none;
  font-family: var(--font-body);
}

.search-box button {
  background: var(--primary);
  color: #fff;
  border: none;
  padding: 14px 24px;
  font-size: 1rem;
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition);
}

.search-box button:hover {
  background: #BE123C;
}

.search-results {
  margin-top: 32px;
}

.search-result-item {
  padding: 20px;
  border: 1px solid #F3F4F6;
  border-radius: var(--radius);
  margin-bottom: 16px;
  transition: var(--transition);
}

.search-result-item:hover {
  border-color: var(--primary);
  box-shadow: 0 4px 12px rgba(225,29,72,0.1);
}

.search-result-item h3 {
  font-size: 1.1rem;
  margin-bottom: 6px;
}

.search-result-item p {
  font-size: 0.9rem;
  color: #6B7280;
  margin-bottom: 8px;
}

.search-result-item .result-path {
  font-size: 0.8rem;
  color: var(--primary);
}

.search-result-item .result-tag {
  display: inline-block;
  background: var(--secondary);
  color: var(--primary);
  font-size: 0.75rem;
  padding: 2px 8px;
  border-radius: 4px;
  margin-left: 8px;
}

/* ===== 404 Page ===== */
.error-page {
  text-align: center;
  padding: 120px 20px;
}

.error-code {
  font-family: var(--font-mono);
  font-size: 8rem;
  font-weight: 900;
  color: var(--card);
  line-height: 1;
}

.error-title {
  font-size: 1.8rem;
  font-weight: 800;
  margin: 16px 0;
}

.error-desc {
  color: #6B7280;
  margin-bottom: 32px;
}

/* ===== Rising Arrow Animation ===== */
.arrow-up {
  display: inline-block;
  animation: bounce-up 1s ease-in-out infinite;
}

.arrow-down {
  display: inline-block;
  animation: bounce-down 1s ease-in-out infinite;
}

@keyframes bounce-up {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-4px); }
}

@keyframes bounce-down {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(4px); }
}

/* ===== APP Download ===== */
.app-hero {
  text-align: center;
  padding: 80px 0;
  background: linear-gradient(135deg, var(--secondary), var(--bg));
}

.app-mockup {
  max-width: 300px;
  margin: 32px auto;
  border-radius: 24px;
  box-shadow: var(--shadow);
}

.app-features {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
  gap: 24px;
  margin-top: 40px;
}

.app-feature-item {
  text-align: center;
  padding: 24px;
}

.app-feature-item .icon {
  font-size: 2.5rem;
  margin-bottom: 12px;
}

/* ===== Legal Pages ===== */
.legal-content {
  max-width: 800px;
  margin: 0 auto;
  padding: 40px 20px;
}

.legal-content h2 {
  font-size: 1.4rem;
  font-weight: 700;
  margin: 32px 0 12px;
  color: var(--text);
}

.legal-content h3 {
  font-size: 1.1rem;
  font-weight: 600;
  margin: 24px 0 8px;
}

.legal-content p {
  margin-bottom: 16px;
  line-height: 1.8;
  color: #4B5563;
}

.legal-content ul {
  margin: 12px 0 20px 20px;
  list-style: disc;
}

.legal-content ul li {
  margin-bottom: 8px;
  color: #4B5563;
  line-height: 1.7;
}

/* ===== Responsive ===== */
@media (max-width: 768px) {
  .nav-menu {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: var(--bg);
    flex-direction: column;
    padding: 20px;
    box-shadow: var(--shadow);
    gap: 16px;
  }

  .nav-menu.active {
    display: flex;
  }

  .nav-toggle {
    display: flex;
  }

  .hero-grid {
    grid-template-columns: 1fr;
  }

  .hero-title {
    font-size: 2rem;
  }

  .footer-grid {
    grid-template-columns: 1fr;
    gap: 24px;
  }

  .card-grid {
    grid-template-columns: 1fr;
  }

  .section-title {
    font-size: 1.5rem;
  }

  .page-header h1 {
    font-size: 1.6rem;
  }

  .rank-table {
    font-size: 0.85rem;
  }

  .rank-table th,
  .rank-table td {
    padding: 10px 8px;
  }

  .search-box {
    flex-direction: column;
  }

  .search-box button {
    border-radius: 0;
  }
}

@media (max-width: 480px) {
  .hero-title {
    font-size: 1.6rem;
  }

  .section {
    padding: 40px 0;
  }

  .container {
    padding: 0 16px;
  }
}