/* ========================================
   Trip - 旅行攻略网站 全局样式
   配色方案: 暖色调 (琥珀色/橙色/暖灰)
   ======================================== */

/* ---- CSS Variables ---- */
:root {
  --primary: #E8751A;
  --primary-dark: #D4650E;
  --primary-light: #FFF3E6;
  --accent: #F5A623;
  --accent-light: #FFF8E1;
  --bg: #FEFCF8;
  --bg-white: #FFFFFF;
  --text: #2C2C2C;
  --text-secondary: #6B6B6B;
  --text-muted: #999999;
  --border: #E8E0D8;
  --shadow: 0 2px 12px rgba(0,0,0,0.08);
  --shadow-hover: 0 8px 24px rgba(0,0,0,0.12);
  --radius: 12px;
  --radius-sm: 8px;
  --max-width: 1200px;
  --nav-height: 64px;
  --transition: 0.3s ease;
}

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

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

body {
  font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Noto Sans SC", "Helvetica Neue", Arial, sans-serif;
  background-color: var(--bg);
  color: var(--text);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

a { color: inherit; text-decoration: none; }
img { max-width: 100%; height: auto; display: block; }
ul { list-style: none; }

.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 20px;
}

/* ---- Navigation ---- */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: var(--nav-height);
  background: var(--bg-white);
  border-bottom: 1px solid var(--border);
  z-index: 1000;
  box-shadow: 0 1px 4px rgba(0,0,0,0.04);
}

.navbar .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
}

.nav-logo {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 1.3rem;
  font-weight: 700;
  color: var(--primary);
}

.nav-logo svg {
  width: 28px;
  height: 28px;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 8px;
}

.nav-links a {
  padding: 8px 16px;
  border-radius: var(--radius-sm);
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--text-secondary);
  transition: all var(--transition);
}

.nav-links a:hover,
.nav-links a.active {
  color: var(--primary);
  background: var(--primary-light);
}

/* ---- Main Content ---- */
main {
  margin-top: var(--nav-height);
  min-height: calc(100vh - var(--nav-height) - 120px);
}

/* ---- Hero Banner ---- */
.hero {
  background: linear-gradient(135deg, #E8751A 0%, #F5A623 50%, #FF8A3C 100%);
  color: white;
  padding: 60px 0 50px;
  text-align: center;
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  top: -50%;
  right: -20%;
  width: 400px;
  height: 400px;
  background: rgba(255,255,255,0.06);
  border-radius: 50%;
}

.hero::after {
  content: '';
  position: absolute;
  bottom: -30%;
  left: -10%;
  width: 300px;
  height: 300px;
  background: rgba(255,255,255,0.04);
  border-radius: 50%;
}

.hero h1 {
  font-size: 2.2rem;
  font-weight: 800;
  margin-bottom: 12px;
  position: relative;
}

.hero p {
  font-size: 1.05rem;
  opacity: 0.9;
  max-width: 600px;
  margin: 0 auto;
  position: relative;
}

/* ---- Search & Filter ---- */
.filter-bar {
  background: var(--bg-white);
  padding: 20px 0;
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: var(--nav-height);
  z-index: 100;
}

.filter-bar .container {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
  align-items: center;
}

.search-box {
  flex: 1;
  min-width: 200px;
  position: relative;
}

.search-box input {
  width: 100%;
  padding: 10px 16px 10px 40px;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  font-size: 0.9rem;
  background: var(--bg);
  transition: all var(--transition);
  outline: none;
}

.search-box input:focus {
  border-color: var(--primary);
  background: var(--bg-white);
  box-shadow: 0 0 0 3px rgba(232,117,26,0.1);
}

.search-box .search-icon {
  position: absolute;
  left: 12px;
  top: 50%;
  transform: translateY(-50%);
  color: var(--text-muted);
  pointer-events: none;
}

.filter-tags {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}

.filter-tag {
  padding: 8px 16px;
  border: 1px solid var(--border);
  border-radius: 100px;
  font-size: 0.85rem;
  color: var(--text-secondary);
  cursor: pointer;
  transition: all var(--transition);
  background: var(--bg-white);
  user-select: none;
}

.filter-tag:hover {
  border-color: var(--primary);
  color: var(--primary);
}

.filter-tag.active {
  background: var(--primary);
  color: white;
  border-color: var(--primary);
}

/* ---- Spot Grid ---- */
.spot-grid-section {
  padding: 30px 0 60px;
}

.spot-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(340px, 1fr));
  gap: 24px;
}

.section-title {
  font-size: 1.4rem;
  font-weight: 700;
  margin-bottom: 24px;
  color: var(--text);
}

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

/* ---- Spot Card ---- */
.spot-card {
  background: var(--bg-white);
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow);
  transition: all var(--transition);
  cursor: pointer;
  border: 1px solid var(--border);
}

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

.spot-card-img {
  width: 100%;
  height: 200px;
  object-fit: cover;
  background: #f0e8e0;
  transition: transform 0.5s ease;
}

.spot-card:hover .spot-card-img {
  transform: scale(1.05);
}

.spot-card-body {
  padding: 16px 20px 20px;
}

.spot-card-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  margin-bottom: 8px;
}

.spot-card-name {
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--text);
}

.spot-card-rating {
  display: flex;
  align-items: center;
  gap: 4px;
  color: var(--accent);
  font-weight: 600;
  font-size: 0.9rem;
  flex-shrink: 0;
}

.spot-card-rating svg {
  width: 16px;
  height: 16px;
}

.spot-card-city {
  font-size: 0.85rem;
  color: var(--text-secondary);
  display: flex;
  align-items: center;
  gap: 4px;
  margin-bottom: 8px;
}

.spot-card-summary {
  font-size: 0.88rem;
  color: var(--text-secondary);
  line-height: 1.5;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.spot-card-tags {
  display: flex;
  gap: 6px;
  margin-top: 12px;
  flex-wrap: wrap;
}

.spot-card-tag {
  padding: 3px 10px;
  background: var(--primary-light);
  color: var(--primary-dark);
  border-radius: 100px;
  font-size: 0.78rem;
  font-weight: 500;
}

/* ---- Breadcrumb ---- */
.breadcrumb {
  padding: 16px 0;
  font-size: 0.85rem;
  color: var(--text-secondary);
}

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

.breadcrumb a:hover {
  text-decoration: underline;
}

.breadcrumb .sep {
  margin: 0 8px;
  color: var(--text-muted);
}

.breadcrumb .current {
  color: var(--text);
  font-weight: 500;
}

/* ---- Spot Detail ---- */
.spot-detail {
  padding-bottom: 80px;
}

.spot-detail-hero {
  width: 100%;
  height: 380px;
  object-fit: cover;
  border-radius: var(--radius);
  margin-bottom: 32px;
  background: #f0e8e0;
}

.spot-detail-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 16px;
  flex-wrap: wrap;
  gap: 12px;
}

.spot-detail-name {
  font-size: 2rem;
  font-weight: 800;
  color: var(--text);
}

.spot-detail-rating {
  display: flex;
  align-items: center;
  gap: 6px;
  color: var(--accent);
  font-size: 1.1rem;
  font-weight: 600;
}

.spot-detail-rating svg {
  width: 22px;
  height: 22px;
}

.spot-detail-meta {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 12px;
  background: var(--primary-light);
  padding: 20px 24px;
  border-radius: var(--radius);
  margin-bottom: 28px;
}

.meta-item {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 0.9rem;
  color: var(--text);
}

.meta-item svg {
  width: 20px;
  height: 20px;
  color: var(--primary);
  flex-shrink: 0;
}

.meta-item strong {
  color: var(--text-secondary);
  font-weight: 500;
  margin-right: 4px;
}

.spot-detail-summary {
  font-size: 1rem;
  line-height: 1.8;
  color: var(--text);
  margin-bottom: 32px;
  padding: 20px 24px;
  background: var(--bg-white);
  border-radius: var(--radius);
  border: 1px solid var(--border);
}

/* ---- Detail Modules ---- */
.detail-module {
  margin-bottom: 32px;
  background: var(--bg-white);
  border-radius: var(--radius);
  border: 1px solid var(--border);
  overflow: hidden;
}

.detail-module-header {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 18px 24px;
  background: var(--primary-light);
  border-bottom: 1px solid var(--border);
  cursor: pointer;
}

.detail-module-header svg {
  width: 22px;
  height: 22px;
  color: var(--primary);
  flex-shrink: 0;
}

.detail-module-header h3 {
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--text);
  flex: 1;
}

.detail-module-header .toggle-icon {
  transition: transform var(--transition);
  color: var(--text-muted);
}

.detail-module.collapsed .toggle-icon {
  transform: rotate(-90deg);
}

.detail-module-body {
  padding: 20px 24px;
}

.detail-module.collapsed .detail-module-body {
  display: none;
}

.route-item {
  padding: 12px 16px;
  margin-bottom: 10px;
  background: var(--bg);
  border-radius: var(--radius-sm);
  border-left: 3px solid var(--primary);
}

.route-item .route-label {
  font-weight: 700;
  color: var(--primary);
  margin-bottom: 4px;
}

.route-item p {
  font-size: 0.9rem;
  line-height: 1.6;
  color: var(--text-secondary);
}

.list-item {
  padding: 10px 0;
  border-bottom: 1px solid var(--border);
  font-size: 0.9rem;
  line-height: 1.5;
  color: var(--text);
}

.list-item:last-child {
  border-bottom: none;
}

.list-item::before {
  content: '\2022';
  color: var(--primary);
  font-weight: bold;
  margin-right: 8px;
}

.tips-item {
  padding: 10px 0;
  border-bottom: 1px solid var(--border);
  font-size: 0.9rem;
  line-height: 1.5;
  color: var(--text);
  display: flex;
  gap: 8px;
}

.tips-item:last-child {
  border-bottom: none;
}

.tips-item::before {
  content: '\26A0';
  font-size: 1rem;
  flex-shrink: 0;
}

/* ---- Footer ---- */
.footer {
  background: #2C2C2C;
  color: rgba(255,255,255,0.7);
  padding: 32px 0;
  text-align: center;
  font-size: 0.85rem;
}

.footer a {
  color: var(--accent);
}

.footer a:hover {
  text-decoration: underline;
}

/* ---- Back to Top ---- */
.back-to-top {
  position: fixed;
  bottom: 30px;
  right: 30px;
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: var(--primary);
  color: white;
  border: none;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 4px 12px rgba(232,117,26,0.3);
  transition: all var(--transition);
  opacity: 0;
  visibility: hidden;
  transform: translateY(10px);
  z-index: 999;
}

.back-to-top.visible {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.back-to-top:hover {
  background: var(--primary-dark);
  transform: translateY(-2px);
  box-shadow: 0 6px 16px rgba(232,117,26,0.4);
}

/* ---- Page Load Animation ---- */
.fade-in {
  animation: fadeIn 0.5s ease forwards;
}

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(12px); }
  to { opacity: 1; transform: translateY(0); }
}

.fade-in-stagger {
  opacity: 0;
  animation: fadeIn 0.5s ease forwards;
}

.fade-in-stagger:nth-child(1) { animation-delay: 0.05s; }
.fade-in-stagger:nth-child(2) { animation-delay: 0.1s; }
.fade-in-stagger:nth-child(3) { animation-delay: 0.15s; }
.fade-in-stagger:nth-child(4) { animation-delay: 0.2s; }
.fade-in-stagger:nth-child(5) { animation-delay: 0.25s; }
.fade-in-stagger:nth-child(6) { animation-delay: 0.3s; }
.fade-in-stagger:nth-child(7) { animation-delay: 0.35s; }
.fade-in-stagger:nth-child(8) { animation-delay: 0.4s; }
.fade-in-stagger:nth-child(9) { animation-delay: 0.45s; }
.fade-in-stagger:nth-child(10) { animation-delay: 0.5s; }

/* ---- Responsive ---- */
@media (max-width: 768px) {
  .hero h1 { font-size: 1.6rem; }
  .hero p { font-size: 0.95rem; }
  .spot-grid { grid-template-columns: 1fr; }
  .navbar .container { padding: 0 16px; }
  .nav-links a { padding: 8px 12px; font-size: 0.85rem; }
  .spot-detail-name { font-size: 1.5rem; }
  .spot-detail-hero { height: 220px; }
  .spot-detail-meta { grid-template-columns: 1fr; }
  .detail-module-body { padding: 16px; }
  .detail-module-header { padding: 14px 16px; }
  .filter-bar .container { flex-direction: column; }
  .search-box { min-width: 100%; }
  .back-to-top { bottom: 20px; right: 20px; width: 40px; height: 40px; }
}

@media (min-width: 769px) and (max-width: 1024px) {
  .spot-grid { grid-template-columns: repeat(2, 1fr); }
}

/* ---- Loading Skeleton ---- */
.skeleton {
  background: linear-gradient(90deg, #f0e8e0 25%, #e8ddd5 50%, #f0e8e0 75%);
  background-size: 200% 100%;
  animation: shimmer 1.5s infinite;
  border-radius: var(--radius-sm);
}

@keyframes shimmer {
  0% { background-position: 200% 0; }
  100% { background-position: -200% 0; }
}

.skeleton-card {
  height: 360px;
  border-radius: var(--radius);
}

.skeleton-text {
  height: 16px;
  margin-bottom: 8px;
}

.skeleton-text:last-child {
  width: 60%;
}

/* ---- About Page ---- */
.about-page {
  padding: 40px 0 80px;
}

.about-page h1 {
  font-size: 2rem;
  font-weight: 800;
  margin-bottom: 20px;
  color: var(--text);
}

.about-page p {
  font-size: 1rem;
  line-height: 1.8;
  color: var(--text-secondary);
  margin-bottom: 16px;
}

/* ---- No results ---- */
.no-results {
  text-align: center;
  padding: 60px 20px;
  color: var(--text-secondary);
}

.no-results svg {
  width: 64px;
  height: 64px;
  margin-bottom: 16px;
  opacity: 0.4;
}

.no-results h3 {
  font-size: 1.2rem;
  margin-bottom: 8px;
  color: var(--text);
}

.no-results p {
  font-size: 0.9rem;
}

/* ---- Gallery grid ---- */
.gallery-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: 12px;
}

.gallery-grid img {
  width: 100%;
  height: 150px;
  object-fit: cover;
  border-radius: var(--radius-sm);
  transition: transform var(--transition);
  cursor: pointer;
}

.gallery-grid img:hover {
  transform: scale(1.03);
}

/* ---- Star rating (inline SVG) ---- */
.star-icon {
  color: var(--accent);
  fill: currentColor;
  width: 16px;
  height: 16px;
}

.empty-star {
  color: var(--border);
  fill: currentColor;
  width: 16px;
  height: 16px;
}

/* Print styles */
@media print {
  .navbar, .filter-bar, .back-to-top, .footer { display: none; }
  main { margin-top: 0; }
  body { font-size: 12px; }
  .detail-module { break-inside: avoid; }
}