* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

:root {
  --primary: #007AFF;
  --primary-light: rgba(0, 122, 255, 0.15);
  --bg: #F2F2F7;
  --glass-bg: rgba(255, 255, 255, 0.72);
  --glass-border: rgba(255, 255, 255, 0.5);
  --glass-shadow: rgba(0, 0, 0, 0.08);
  --text-primary: #1C1C1E;
  --text-secondary: #8E8E93;
  --text-tertiary: #AEAEB2;
  --separator: rgba(60, 60, 67, 0.12);
  --accent-pink: #FF2D55;
  --accent-orange: #FF9500;
  --accent-green: #34C759;
  --accent-purple: #AF52DE;
  --accent-blue: #5856D6;
  --accent-teal: #5AC8FA;
  --radius-sm: 12px;
  --radius-md: 16px;
  --radius-lg: 22px;
  --radius-xl: 28px;
  --safe-bottom: max(10px, env(safe-area-inset-bottom));
}

html, body {
  height: 100%;
  -ms-overflow-style: none;
  scrollbar-width: none;
}

html::-webkit-scrollbar,
body::-webkit-scrollbar {
  display: none;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, 'SF Pro Display', 'SF Pro Text', 'PingFang SC', 'Noto Sans SC', sans-serif;
  background: var(--bg);
  color: var(--text-primary);
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
  padding-bottom: calc(83px + var(--safe-bottom));
}

.app-container {
  min-height: 100%;
  background: linear-gradient(180deg, #E8E8ED 0%, #F2F2F7 100%);
}

.hero {
  background: linear-gradient(135deg, #667eea 0%, #764ba2 50%, #f093fb 100%);
  padding: 60px 20px 40px;
  text-align: center;
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: linear-gradient(180deg, rgba(255,255,255,0.2) 0%, rgba(255,255,255,0) 50%);
  pointer-events: none;
}

.hero::after {
  content: '';
  position: absolute;
  bottom: -1px;
  left: 0;
  right: 0;
  height: 30px;
  background: var(--bg);
  border-radius: 24px 24px 0 0;
}

.hero-content {
  position: relative;
  z-index: 1;
}

.hero h1 {
  font-size: 28px;
  font-weight: 700;
  color: #fff;
  margin-bottom: 8px;
  text-shadow: 0 2px 10px rgba(0,0,0,0.15);
  letter-spacing: -0.5px;
}

.hero .sub {
  font-size: 15px;
  color: rgba(255,255,255,0.9);
  margin-bottom: 16px;
  font-weight: 500;
}

.hero .tags {
  display: flex;
  gap: 8px;
  justify-content: center;
  flex-wrap: wrap;
}

.hero .tag {
  background: rgba(255,255,255,0.25);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  padding: 6px 14px;
  border-radius: 20px;
  font-size: 12px;
  font-weight: 500;
  color: #fff;
  border: 1px solid rgba(255,255,255,0.3);
}

.container {
  max-width: 540px;
  margin: 0 auto;
  padding: 16px 16px calc(60px + var(--safe-bottom));
}

.section-title {
  font-size: 20px;
  font-weight: 700;
  margin: 24px 0 12px;
  padding-left: 4px;
  color: var(--text-primary);
  letter-spacing: -0.3px;
}

.glass-card {
  background: var(--glass-bg);
  backdrop-filter: blur(40px);
  -webkit-backdrop-filter: blur(40px);
  border-radius: var(--radius-lg);
  overflow: hidden;
  margin-bottom: 12px;
  box-shadow: 
    0 2px 8px var(--glass-shadow),
    0 8px 32px rgba(0, 0, 0, 0.04),
    inset 0 1px 0 var(--glass-border);
  border: 1px solid var(--glass-border);
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.glass-card:active {
  transform: scale(0.98);
}

.day-header {
  padding: 16px;
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 14px;
  user-select: none;
}

.day-number {
  width: 48px;
  height: 48px;
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 14px;
  font-weight: 700;
  color: #fff;
  flex-shrink: 0;
  box-shadow: 0 4px 12px rgba(0,0,0,0.15);
  position: relative;
  overflow: hidden;
}

.day-number::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 50%;
  background: linear-gradient(180deg, rgba(255,255,255,0.3) 0%, rgba(255,255,255,0) 100%);
}

.day-info {
  flex: 1;
}

.day-info h3 {
  font-size: 16px;
  font-weight: 600;
  margin-bottom: 2px;
  color: var(--text-primary);
}

.day-info p {
  font-size: 13px;
  color: var(--text-secondary);
  margin-bottom: 2px;
}

.day-info .hotel {
  font-size: 12px;
  color: var(--primary);
  font-weight: 600;
}

.arrow {
  font-size: 14px;
  color: var(--text-tertiary);
  transition: transform 0.3s ease;
  flex-shrink: 0;
}

.arrow.open {
  transform: rotate(90deg);
}

.day-body {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

.day-body.show {
  max-height: 3000px;
}

.day-body-inner {
  padding: 4px 16px 16px;
}

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

.timeline::before {
  content: '';
  position: absolute;
  left: 6px;
  top: 6px;
  bottom: 6px;
  width: 2px;
  background: linear-gradient(180deg, var(--separator) 0%, var(--separator) 100%);
  border-radius: 1px;
}

.timeline-item {
  position: relative;
  margin-bottom: 12px;
}

.timeline-item::before {
  content: '';
  position: absolute;
  left: -18px;
  top: 6px;
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--bg);
  border: 2.5px solid var(--text-tertiary);
  transition: all 0.2s ease;
}

.timeline-item.highlight::before {
  background: var(--primary);
  border-color: var(--primary);
  box-shadow: 0 0 0 4px var(--primary-light);
}

.time {
  font-size: 13px;
  font-weight: 700;
  color: var(--text-secondary);
  margin-bottom: 2px;
}

.activity {
  font-size: 15px;
  font-weight: 500;
  color: var(--text-primary);
}

.detail {
  font-size: 13px;
  color: var(--text-secondary);
  margin-top: 2px;
}

.guide {
  background: rgba(0, 122, 255, 0.06);
  border: 1px solid rgba(0, 122, 255, 0.15);
  border-radius: var(--radius-md);
  margin-top: 14px;
  overflow: hidden;
}

.guide-title {
  padding: 12px 14px;
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  font-size: 13px;
  font-weight: 600;
  color: var(--primary);
  user-select: none;
}

.guide-body {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.3s ease;
}

.guide-body.show {
  max-height: 2000px;
}

.guide-content {
  padding: 8px 14px 14px;
  font-size: 13px;
  color: var(--text-secondary);
  line-height: 1.7;
}

.guide-content ul {
  padding-left: 16px;
}

.guide-content li {
  margin-bottom: 6px;
}

.guide-content strong {
  color: var(--text-primary);
}

.tip {
  background: linear-gradient(135deg, rgba(255, 149, 0, 0.12) 0%, rgba(255, 204, 0, 0.08) 100%);
  border-left: 3px solid var(--accent-orange);
  padding: 10px 12px;
  border-radius: 8px;
  margin: 10px 0;
  font-size: 12px;
  color: #8B6914;
}

.prepare-card {
  background: var(--glass-bg);
  backdrop-filter: blur(40px);
  -webkit-backdrop-filter: blur(40px);
  border-radius: var(--radius-lg);
  padding: 16px;
  margin-bottom: 12px;
  box-shadow: 
    0 2px 8px var(--glass-shadow),
    0 8px 32px rgba(0, 0, 0, 0.04),
    inset 0 1px 0 var(--glass-border);
  border: 1px solid var(--glass-border);
}

.category-tag {
  display: inline-block;
  background: var(--primary-light);
  color: var(--primary);
  font-size: 11px;
  padding: 4px 10px;
  border-radius: 10px;
  font-weight: 600;
  margin-bottom: 8px;
}

.items {
  font-size: 14px;
  color: var(--text-primary);
  line-height: 1.6;
}

.notes-card {
  background: var(--glass-bg);
  backdrop-filter: blur(40px);
  -webkit-backdrop-filter: blur(40px);
  border-radius: var(--radius-lg);
  padding: 16px;
  margin-bottom: 12px;
  box-shadow: 
    0 2px 8px var(--glass-shadow),
    0 8px 32px rgba(0, 0, 0, 0.04),
    inset 0 1px 0 var(--glass-border);
  border: 1px solid var(--glass-border);
}

.notes-card ul {
  list-style: none;
}

.notes-card li {
  font-size: 14px;
  padding: 10px 0;
  border-bottom: 1px solid var(--separator);
  line-height: 1.5;
}

.notes-card li:last-child {
  border-bottom: none;
  padding-bottom: 0;
}

.notes-card li:first-child {
  padding-top: 0;
}

.budget-row {
  display: flex;
  justify-content: space-between;
  padding: 10px 0;
  font-size: 15px;
  border-bottom: 1px solid var(--separator);
}

.budget-row:last-child {
  border-bottom: none;
}

.budget-row span:last-child {
  color: var(--primary);
  font-weight: 600;
}

.budget-total {
  border-top: 2px solid var(--separator);
  padding-top: 12px;
  margin-top: 4px;
  font-weight: 700;
}

.gradient-purple { background: linear-gradient(135deg, #667eea 0%, #764ba2 100%); }
.gradient-pink { background: linear-gradient(135deg, #f093fb 0%, #f5576c 100%); }
.gradient-orange { background: linear-gradient(135deg, #fa709a 0%, #fee140 100%); }
.gradient-blue { background: linear-gradient(135deg, #4facfe 0%, #00f2fe 100%); }
.gradient-green { background: linear-gradient(135deg, #43e97b 0%, #38f9d7 100%); }
.gradient-red { background: linear-gradient(135deg, #f5576c 0%, #f093fb 100%); }

.tabbar {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  padding-bottom: var(--safe-bottom);
  background: var(--glass-bg);
  backdrop-filter: blur(40px);
  -webkit-backdrop-filter: blur(40px);
  border-top: 1px solid var(--separator);
  display: flex;
  justify-content: space-around;
  align-items: flex-start;
  z-index: 100;
}

.tabbar-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 4px;
  text-decoration: none;
  padding: 4px 16px;
  transition: transform 0.2s ease;
}

.tabbar-item:active {
  transform: scale(0.9);
}

.tabbar-icon {
  width: 28px;
  height: 28px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.tabbar-icon svg {
  width: 24px;
  height: 24px;
  stroke: var(--text-tertiary);
  fill: none;
  stroke-width: 1.8;
  transition: all 0.2s ease;
}

.tabbar-item.active .tabbar-icon svg {
  stroke: var(--primary);
  fill: var(--primary-light);
}

.tabbar-label {
  font-size: 10px;
  font-weight: 500;
  color: var(--text-tertiary);
  transition: color 0.2s ease;
}

.tabbar-item.active .tabbar-label {
  color: var(--primary);
}

.page-header {
  background: var(--glass-bg);
  backdrop-filter: blur(40px);
  -webkit-backdrop-filter: blur(40px);
  padding: 16px 20px;
  position: sticky;
  top: 0;
  z-index: 50;
  border-bottom: 1px solid var(--separator);
}

.page-header h1 {
  font-size: 28px;
  font-weight: 700;
  letter-spacing: -0.5px;
}

.page-header p {
  font-size: 14px;
  color: var(--text-secondary);
  margin-top: 4px;
}

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(10px); }
  to { opacity: 1; transform: translateY(0); }
}

.animate-in {
  animation: fadeIn 0.4s ease forwards;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #000000;
    --glass-bg: rgba(28, 28, 30, 0.72);
    --glass-border: rgba(255, 255, 255, 0.1);
    --glass-shadow: rgba(0, 0, 0, 0.3);
    --text-primary: #FFFFFF;
    --text-secondary: #8E8E93;
    --text-tertiary: #636366;
    --separator: rgba(255, 255, 255, 0.12);
    --primary-light: rgba(10, 132, 255, 0.2);
  }
  
  .app-container {
    background: linear-gradient(180deg, #1C1C1E 0%, #000000 100%);
  }
  
  .hero::after {
    background: var(--bg);
  }
  
  .tip {
    color: #FFD60A;
  }
}

.checklist {
  margin-top: 8px;
}

.check-item {
  display: flex;
  align-items: center;
  padding: 10px 0;
  cursor: pointer;
  user-select: none;
  border-bottom: 1px solid var(--separator);
  transition: background 0.2s ease;
}

.check-item:last-child {
  border-bottom: none;
  padding-bottom: 0;
}

.check-item:first-child {
  padding-top: 0;
}

.check-item input[type="checkbox"] {
  display: none;
}

.check-box {
  width: 22px;
  height: 22px;
  border-radius: 50%;
  border: 2px solid var(--text-tertiary);
  margin-right: 12px;
  flex-shrink: 0;
  position: relative;
  transition: all 0.2s ease;
}

.check-item input[type="checkbox"]:checked + .check-box {
  background: var(--accent-green);
  border-color: var(--accent-green);
}

.check-box::after {
  content: '';
  position: absolute;
  left: 6px;
  top: 3px;
  width: 5px;
  height: 9px;
  border: solid #fff;
  border-width: 0 2px 2px 0;
  transform: rotate(45deg) scale(0);
  transition: transform 0.2s ease;
}

.check-item input[type="checkbox"]:checked + .check-box::after {
  transform: rotate(45deg) scale(1);
}

.check-text {
  font-size: 15px;
  color: var(--text-primary);
  transition: all 0.2s ease;
}

.check-item input[type="checkbox"]:checked ~ .check-text {
  color: var(--text-tertiary);
  text-decoration: line-through;
}

.progress-card {
  background: var(--glass-bg);
  backdrop-filter: blur(40px);
  -webkit-backdrop-filter: blur(40px);
  border-radius: var(--radius-lg);
  padding: 16px;
  margin-bottom: 12px;
  box-shadow: 
    0 2px 8px var(--glass-shadow),
    0 8px 32px rgba(0, 0, 0, 0.04),
    inset 0 1px 0 var(--glass-border);
  border: 1px solid var(--glass-border);
}

.progress-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 12px;
  font-size: 15px;
  font-weight: 600;
}

.progress-count {
  color: var(--primary);
}

.progress-bar {
  height: 8px;
  background: var(--separator);
  border-radius: 4px;
  overflow: hidden;
}

.progress-fill {
  height: 100%;
  background: linear-gradient(90deg, var(--primary) 0%, var(--accent-teal) 100%);
  border-radius: 4px;
  width: 0%;
  transition: width 0.3s ease;
}

.note-category {
  background: var(--glass-bg);
  backdrop-filter: blur(40px);
  -webkit-backdrop-filter: blur(40px);
  border-radius: var(--radius-lg);
  margin-bottom: 12px;
  overflow: hidden;
  box-shadow: 
    0 2px 8px var(--glass-shadow),
    0 8px 32px rgba(0, 0, 0, 0.04),
    inset 0 1px 0 var(--glass-border);
  border: 1px solid var(--glass-border);
}

.note-category-header {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 16px;
  background: linear-gradient(135deg, rgba(255,255,255,0.5) 0%, rgba(255,255,255,0) 100%);
}

.note-icon {
  width: 44px;
  height: 44px;
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.note-icon svg {
  width: 24px;
  height: 24px;
}

.note-icon-red {
  background: linear-gradient(135deg, #FF2D55 0%, #FF6B6B 100%);
  color: #fff;
}

.note-icon-orange {
  background: linear-gradient(135deg, #FF9500 0%, #FFCC00 100%);
  color: #fff;
}

.note-icon-blue {
  background: linear-gradient(135deg, #007AFF 0%, #5AC8FA 100%);
  color: #fff;
}

.note-icon-green {
  background: linear-gradient(135deg, #34C759 0%, #30D158 100%);
  color: #fff;
}

.note-category-title {
  font-size: 17px;
  font-weight: 600;
  color: var(--text-primary);
}

.note-category-desc {
  font-size: 13px;
  color: var(--text-secondary);
  margin-top: 2px;
}

.note-items {
  padding: 0 16px 16px;
}

.note-item {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  padding: 12px 0;
  border-bottom: 1px solid var(--separator);
}

.note-item:last-child {
  border-bottom: none;
  padding-bottom: 0;
}

.note-item:first-child {
  padding-top: 0;
}

.note-item-icon {
  font-size: 20px;
  flex-shrink: 0;
  width: 28px;
  text-align: center;
}

.note-item-content strong {
  font-size: 15px;
  font-weight: 600;
  color: var(--text-primary);
  display: block;
  margin-bottom: 4px;
}

.note-item-content p {
  font-size: 13px;
  color: var(--text-secondary);
  line-height: 1.5;
}

.budget-total-card {
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  border-radius: var(--radius-lg);
  padding: 20px;
  display: flex;
  align-items: center;
  gap: 16px;
  margin-bottom: 16px;
  box-shadow: 0 8px 24px rgba(102, 126, 234, 0.3);
}

.budget-total-icon {
  font-size: 40px;
  flex-shrink: 0;
}

.budget-total-info {
  color: #fff;
}

.budget-total-label {
  font-size: 13px;
  opacity: 0.9;
  margin-bottom: 4px;
}

.budget-total-amount {
  font-size: 28px;
  font-weight: 700;
  letter-spacing: -0.5px;
}

.budget-total-note {
  font-size: 12px;
  opacity: 0.8;
  margin-top: 4px;
}

.budget-section {
  margin-bottom: 16px;
}

.budget-section-title {
  font-size: 15px;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 8px;
  padding-left: 4px;
  display: flex;
  align-items: center;
  gap: 8px;
}

.budget-section-icon {
  font-size: 18px;
}

.budget-card {
  background: var(--glass-bg);
  backdrop-filter: blur(40px);
  -webkit-backdrop-filter: blur(40px);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: 
    0 2px 8px var(--glass-shadow),
    0 8px 32px rgba(0, 0, 0, 0.04),
    inset 0 1px 0 var(--glass-border);
  border: 1px solid var(--glass-border);
}

.budget-card .budget-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 14px 16px;
  border-bottom: 1px solid var(--separator);
}

.budget-card .budget-row:last-child {
  border-bottom: none;
}

.budget-item-name {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 15px;
  color: var(--text-primary);
}

.budget-item-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--primary);
  flex-shrink: 0;
}

.budget-item-price {
  font-size: 15px;
  font-weight: 600;
  color: var(--primary);
}

.budget-item-note {
  font-size: 11px;
  font-weight: 400;
  color: var(--text-secondary);
  margin-left: 4px;
}

.budget-item-included {
  color: var(--accent-green);
  font-size: 13px;
}

.budget-tip-card {
  background: linear-gradient(135deg, rgba(255, 149, 0, 0.12) 0%, rgba(255, 204, 0, 0.08) 100%);
  border-radius: var(--radius-lg);
  padding: 16px;
  display: flex;
  align-items: flex-start;
  gap: 12px;
  border: 1px solid rgba(255, 149, 0, 0.2);
}

.budget-tip-icon {
  font-size: 24px;
  flex-shrink: 0;
}

.budget-tip-content strong {
  font-size: 14px;
  font-weight: 600;
  color: #8B6914;
  display: block;
  margin-bottom: 4px;
}

.budget-tip-content p {
  font-size: 13px;
  color: #8B6914;
  line-height: 1.5;
}

@media (prefers-color-scheme: dark) {
  .budget-total-card {
    box-shadow: 0 8px 24px rgba(102, 126, 234, 0.4);
  }
  
  .budget-tip-card {
    background: linear-gradient(135deg, rgba(255, 149, 0, 0.15) 0%, rgba(255, 204, 0, 0.1) 100%);
  }
  
  .budget-tip-content strong,
  .budget-tip-content p {
    color: #FFD60A;
  }
}