/* ========================================
   智游 Pro - AI智能旅游规划网站样式
   极致细节打磨 | 现代设计语言 | 响应式优先
   ======================================== */

/* 基础变量 - 现代色彩系统 */
:root {
    /* 主色调 - 紫蓝渐变系 */
    --primary-50: #eef2ff;
    --primary-100: #e0e7ff;
    --primary-200: #c7d2fe;
    --primary-300: #a5b4fc;
    --primary-400: #818cf8;
    --primary-500: #6366f1;
    --primary-600: #4f46e5;
    --primary-700: #4338ca;
    --primary-800: #3730a3;
    --primary-900: #312e81;
    
    /* 强调色 - 橙粉渐变 */
    --accent-400: #fb923c;
    --accent-500: #f97316;
    --accent-600: #ea580c;
    
    /* 功能色 */
    --success: #10b981;
    --warning: #f59e0b;
    --error: #ef4444;
    --info: #3b82f6;
    
    /* 中性色 */
    --gray-50: #f9fafb;
    --gray-100: #f3f4f6;
    --gray-200: #e5e7eb;
    --gray-300: #d1d5db;
    --gray-400: #9ca3af;
    --gray-500: #6b7280;
    --gray-600: #4b5563;
    --gray-700: #374151;
    --gray-800: #1f2937;
    --gray-900: #111827;
    
    /* 背景色 */
    --bg-primary: #ffffff;
    --bg-secondary: #f8fafc;
    --bg-tertiary: #f1f5f9;
    --bg-gradient-start: #667eea;
    --bg-gradient-end: #764ba2;
    
    /* 文字色 */
    --text-primary: #0f172a;
    --text-secondary: #475569;
    --text-tertiary: #64748b;
    --text-muted: #94a3b8;
    
    /* 阴影系统 */
    --shadow-xs: 0 1px 2px 0 rgb(0 0 0 / 0.05);
    --shadow-sm: 0 1px 3px 0 rgb(0 0 0 / 0.1), 0 1px 2px -1px rgb(0 0 0 / 0.1);
    --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
    --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1), 0 4px 6px -4px rgb(0 0 0 / 0.1);
    --shadow-xl: 0 20px 25px -5px rgb(0 0 0 / 0.1), 0 8px 10px -6px rgb(0 0 0 / 0.1);
    --shadow-glow: 0 0 40px -10px var(--primary-500);
    
    /* 圆角系统 */
    --radius-sm: 6px;
    --radius-md: 10px;
    --radius-lg: 16px;
    --radius-xl: 24px;
    --radius-2xl: 32px;
    --radius-full: 9999px;
    
    /* 过渡动画 */
    --transition-fast: 150ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition-base: 250ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition-slow: 350ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition-bounce: 500ms cubic-bezier(0.34, 1.56, 0.64, 1);
    
    /* 间距系统 */
    --space-1: 0.25rem;
    --space-2: 0.5rem;
    --space-3: 0.75rem;
    --space-4: 1rem;
    --space-5: 1.25rem;
    --space-6: 1.5rem;
    --space-8: 2rem;
    --space-10: 2.5rem;
    --space-12: 3rem;
    --space-16: 4rem;
    --space-20: 5rem;
}

/* ========================================
   重置与基础样式
   ======================================== */
*, *::before, *::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    font-size: 16px;
    line-height: 1.6;
    color: var(--text-primary);
    background-color: var(--bg-secondary);
    min-height: 100vh;
    overflow-x: hidden;
}

/* 滚动条美化 */
::-webkit-scrollbar {
    width: 8px;
    height: 8px;
}

::-webkit-scrollbar-track {
    background: var(--gray-100);
    border-radius: var(--radius-full);
}

::-webkit-scrollbar-thumb {
    background: var(--gray-300);
    border-radius: var(--radius-full);
    transition: var(--transition-fast);
}

::-webkit-scrollbar-thumb:hover {
    background: var(--gray-400);
}

::selection {
    background: var(--primary-200);
    color: var(--primary-900);
}

/* ========================================
   动画关键帧
   ======================================== */
@keyframes fadeIn {
    from { opacity: 0; transform: translateY(20px); }
    to { opacity: 1; transform: translateY(0); }
}

@keyframes fadeInScale {
    from { opacity: 0; transform: scale(0.95); }
    to { opacity: 1; transform: scale(1); }
}

@keyframes slideInLeft {
    from { opacity: 0; transform: translateX(-30px); }
    to { opacity: 1; transform: translateX(0); }
}

@keyframes slideInRight {
    from { opacity: 0; transform: translateX(30px); }
    to { opacity: 1; transform: translateX(0); }
}

@keyframes float {
    0%, 100% { transform: translateY(0px); }
    50% { transform: translateY(-10px); }
}

@keyframes pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.5; }
}

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

@keyframes spin {
    to { transform: rotate(360deg); }
}

@keyframes bounce {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-10px); }
}

@keyframes gradient-shift {
    0% { background-position: 0% 50%; }
    50% { background-position: 100% 50%; }
    100% { background-position: 0% 50%; }
}

/* ========================================
   导航栏 - 玻璃态效果
   ======================================== */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: rgba(255, 255, 255, 0.85);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid rgba(255, 255, 255, 0.3);
    transition: var(--transition-base);
}

.navbar.scrolled {
    background: rgba(255, 255, 255, 0.95);
    box-shadow: var(--shadow-md);
}

.nav-container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 var(--space-6);
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 72px;
}

.logo {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    font-size: 1.5rem;
    font-weight: 800;
    background: linear-gradient(135deg, var(--primary-600), var(--accent-500));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    letter-spacing: -0.02em;
}

.logo-icon {
    width: 40px;
    height: 40px;
    background: linear-gradient(135deg, var(--primary-500), var(--primary-700));
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.25rem;
    -webkit-text-fill-color: initial;
    box-shadow: var(--shadow-md);
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: var(--space-2);
}

.nav-menu a {
    position: relative;
    color: var(--text-secondary);
    font-weight: 500;
    padding: var(--space-2) var(--space-4);
    border-radius: var(--radius-md);
    transition: var(--transition-fast);
    overflow: hidden;
}

.nav-menu a::before {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, var(--primary-100), var(--primary-50));
    opacity: 0;
    transition: var(--transition-fast);
    z-index: -1;
}

.nav-menu a:hover,
.nav-menu a.active {
    color: var(--primary-600);
}

.nav-menu a:hover::before,
.nav-menu a.active::before {
    opacity: 1;
}

.nav-menu a.active::after {
    content: '';
    position: absolute;
    bottom: 4px;
    left: 50%;
    transform: translateX(-50%);
    width: 20px;
    height: 3px;
    background: var(--primary-500);
    border-radius: var(--radius-full);
}

/* ========================================
   按钮系统 - 多层次设计
   ======================================== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-2);
    padding: var(--space-3) var(--space-6);
    font-size: 0.95rem;
    font-weight: 600;
    border-radius: var(--radius-lg);
    border: none;
    cursor: pointer;
    transition: var(--transition-base);
    position: relative;
    overflow: hidden;
}

.btn::before {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(45deg, transparent 30%, rgba(255,255,255,0.2) 50%, transparent 70%);
    transform: translateX(-100%);
    transition: transform 0.6s;
}

.btn:hover::before {
    transform: translateX(100%);
}

.btn:disabled {
    opacity: 0.6;
    cursor: not-allowed;
}

/* 主要按钮 */
.btn-primary {
    background: linear-gradient(135deg, var(--primary-600), var(--primary-700));
    color: white;
    box-shadow: 0 4px 14px 0 rgba(99, 102, 241, 0.39);
}

.btn-primary:hover:not(:disabled) {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px 0 rgba(99, 102, 241, 0.5);
}

.btn-primary:active {
    transform: translateY(0);
}

/* 次要按钮 */
.btn-secondary {
    background: white;
    color: var(--primary-600);
    border: 2px solid var(--primary-200);
}

.btn-secondary:hover:not(:disabled) {
    background: var(--primary-50);
    border-color: var(--primary-300);
    transform: translateY(-2px);
}

/* 成功按钮 */
.btn-success {
    background: linear-gradient(135deg, var(--success), #059669);
    color: white;
    box-shadow: 0 4px 14px 0 rgba(16, 185, 129, 0.39);
}

.btn-success:hover:not(:disabled) {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px 0 rgba(16, 185, 129, 0.5);
}

/* 警告/强调按钮 */
.btn-accent {
    background: linear-gradient(135deg, var(--accent-500), var(--accent-600));
    color: white;
    box-shadow: 0 4px 14px 0 rgba(249, 115, 22, 0.39);
}

.btn-accent:hover:not(:disabled) {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px 0 rgba(249, 115, 22, 0.5);
}

/* 幽灵按钮 */
.btn-ghost {
    background: transparent;
    color: var(--text-secondary);
}

.btn-ghost:hover:not(:disabled) {
    background: var(--gray-100);
    color: var(--text-primary);
}

/* 按钮尺寸 */
.btn-sm {
    padding: var(--space-2) var(--space-4);
    font-size: 0.875rem;
}

.btn-lg {
    padding: var(--space-4) var(--space-8);
    font-size: 1.1rem;
}

.btn-xl {
    padding: var(--space-5) var(--space-10);
    font-size: 1.2rem;
    border-radius: var(--radius-xl);
}

/* 图标按钮 */
.btn-icon {
    width: 40px;
    height: 40px;
    padding: 0;
    border-radius: var(--radius-lg);
}

/* ========================================
   Hero区域 - 沉浸式体验
   ======================================== */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: calc(72px + var(--space-12)) var(--space-6) var(--space-12);
    background: linear-gradient(135deg, #667eea 0%, #764ba2 50%, #f093fb 100%);
    background-size: 200% 200%;
    animation: gradient-shift 15s ease infinite;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    inset: 0;
    background: url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%23ffffff' fill-opacity='0.05'%3E%3Ccircle cx='30' cy='30' r='4'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");
    opacity: 0.5;
}

.hero-content {
    position: relative;
    z-index: 2;
    text-align: center;
    max-width: 800px;
    animation: fadeIn 1s ease-out;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: var(--space-2);
    padding: var(--space-2) var(--space-4);
    background: rgba(255, 255, 255, 0.15);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: var(--radius-full);
    color: white;
    font-size: 0.875rem;
    font-weight: 500;
    margin-bottom: var(--space-6);
    animation: fadeInScale 0.8s ease-out 0.2s both;
}

.hero h1 {
    font-size: clamp(2.5rem, 6vw, 4rem);
    font-weight: 800;
    color: white;
    line-height: 1.1;
    margin-bottom: var(--space-6);
    text-shadow: 0 4px 30px rgba(0, 0, 0, 0.3);
    animation: fadeInScale 0.8s ease-out 0.3s both;
}

.hero h1 span {
    background: linear-gradient(135deg, #fcd34d, #fbbf24);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-subtitle {
    font-size: clamp(1.1rem, 2.5vw, 1.4rem);
    color: rgba(255, 255, 255, 0.9);
    margin-bottom: var(--space-4);
    font-weight: 400;
    animation: fadeInScale 0.8s ease-out 0.4s both;
}

.hero-desc {
    font-size: 1rem;
    color: rgba(255, 255, 255, 0.7);
    margin-bottom: var(--space-10);
    animation: fadeInScale 0.8s ease-out 0.5s both;
}

.hero-actions {
    display: flex;
    gap: var(--space-4);
    justify-content: center;
    flex-wrap: wrap;
    animation: fadeInScale 0.8s ease-out 0.6s both;
}

.hero-stats {
    display: flex;
    gap: var(--space-12);
    justify-content: center;
    margin-top: var(--space-16);
    animation: fadeIn 0.8s ease-out 0.8s both;
}

.hero-stat {
    text-align: center;
    color: white;
}

.hero-stat-value {
    font-size: 2rem;
    font-weight: 800;
    display: block;
}

.hero-stat-label {
    font-size: 0.875rem;
    opacity: 0.8;
}

/* 浮动装饰元素 */
.hero-decoration {
    position: absolute;
    border-radius: var(--radius-2xl);
    opacity: 0.1;
    animation: float 6s ease-in-out infinite;
}

.hero-decoration-1 {
    width: 300px;
    height: 300px;
    background: white;
    top: 10%;
    left: 5%;
    animation-delay: 0s;
}

.hero-decoration-2 {
    width: 200px;
    height: 200px;
    background: white;
    bottom: 15%;
    right: 8%;
    animation-delay: 2s;
}

.hero-decoration-3 {
    width: 150px;
    height: 150px;
    background: white;
    top: 40%;
    right: 15%;
    animation-delay: 4s;
}

/* ========================================
   表单组件 - 精致输入体验
   ======================================== */
.form-group {
    margin-bottom: var(--space-5);
}

.form-label {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: var(--space-2);
}

.form-label .optional {
    font-size: 0.75rem;
    color: var(--text-muted);
    font-weight: 400;
}

.form-input,
.form-select,
.form-textarea {
    width: 100%;
    padding: var(--space-3) var(--space-4);
    font-size: 1rem;
    color: var(--text-primary);
    background: white;
    border: 2px solid var(--gray-200);
    border-radius: var(--radius-lg);
    transition: var(--transition-fast);
}

.form-input:hover,
.form-select:hover,
.form-textarea:hover {
    border-color: var(--gray-300);
}

.form-input:focus,
.form-select:focus,
.form-textarea:focus {
    outline: none;
    border-color: var(--primary-500);
    box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.1);
}

.form-input::placeholder,
.form-textarea::placeholder {
    color: var(--text-muted);
}

.form-textarea {
    min-height: 120px;
    resize: vertical;
    line-height: 1.6;
}

.form-select {
    cursor: pointer;
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' fill='none' viewBox='0 0 24 24' stroke='%236b7280'%3E%3Cpath stroke-linecap='round' stroke-linejoin='round' stroke-width='2' d='M19 9l-7 7-7-7'%3E%3C/path%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 12px center;
    background-size: 20px;
    padding-right: var(--space-10);
}

.form-hint {
    font-size: 0.8rem;
    color: var(--text-muted);
    margin-top: var(--space-2);
}

/* 标签选择器 */
.tag-selector {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-2);
}

.tag-option {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    padding: var(--space-2) var(--space-4);
    background: white;
    border: 2px solid var(--gray-200);
    border-radius: var(--radius-full);
    font-size: 0.875rem;
    cursor: pointer;
    transition: var(--transition-fast);
}

.tag-option:hover {
    border-color: var(--primary-300);
}

.tag-option.active {
    background: var(--primary-50);
    border-color: var(--primary-500);
    color: var(--primary-700);
}

/* ========================================
   卡片组件 - 多层次阴影
   ======================================== */
.card {
    background: var(--bg-primary);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-sm);
    transition: var(--transition-base);
    overflow: hidden;
}

.card:hover {
    box-shadow: var(--shadow-md);
}

.card-interactive {
    cursor: pointer;
}

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

.card-header {
    padding: var(--space-6);
    border-bottom: 1px solid var(--gray-100);
}

.card-body {
    padding: var(--space-6);
}

.card-footer {
    padding: var(--space-4) var(--space-6);
    background: var(--gray-50);
    border-top: 1px solid var(--gray-100);
}

/* ========================================
   特色功能区
   ======================================== */
.features {
    padding: var(--space-20) var(--space-6);
    background: var(--bg-secondary);
}

.section-header {
    text-align: center;
    max-width: 600px;
    margin: 0 auto var(--space-16);
}

.section-tag {
    display: inline-flex;
    align-items: center;
    gap: var(--space-2);
    padding: var(--space-1) var(--space-3);
    background: var(--primary-100);
    color: var(--primary-700);
    font-size: 0.8rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    border-radius: var(--radius-full);
    margin-bottom: var(--space-4);
}

.section-title {
    font-size: clamp(1.75rem, 4vw, 2.5rem);
    font-weight: 800;
    color: var(--text-primary);
    margin-bottom: var(--space-4);
    line-height: 1.2;
}

.section-desc {
    font-size: 1.125rem;
    color: var(--text-secondary);
}

.feature-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--space-6);
    max-width: 1200px;
    margin: 0 auto;
}

.feature-card {
    background: var(--bg-primary);
    padding: var(--space-8);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-sm);
    transition: var(--transition-base);
    position: relative;
    overflow: hidden;
}

.feature-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, var(--primary-500), var(--accent-500));
    transform: scaleX(0);
    transition: transform 0.3s ease;
}

.feature-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-xl);
}

.feature-card:hover::before {
    transform: scaleX(1);
}

.feature-icon {
    width: 60px;
    height: 60px;
    background: linear-gradient(135deg, var(--primary-100), var(--primary-50));
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.75rem;
    margin-bottom: var(--space-5);
    transition: var(--transition-base);
}

.feature-card:hover .feature-icon {
    transform: scale(1.1) rotate(5deg);
}

.feature-card h3 {
    font-size: 1.25rem;
    font-weight: 700;
    margin-bottom: var(--space-3);
}

.feature-card p {
    color: var(--text-secondary);
    font-size: 0.95rem;
    line-height: 1.7;
}

/* ========================================
   热门城市区 - 精致卡片
   ======================================== */
.hot-cities {
    padding: var(--space-20) var(--space-6);
    background: var(--bg-primary);
}

.city-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: var(--space-6);
    max-width: 1400px;
    margin: 0 auto;
}

.city-card {
    background: var(--bg-primary);
    border-radius: var(--radius-xl);
    overflow: hidden;
    box-shadow: var(--shadow-md);
    transition: var(--transition-base);
    display: flex;
    flex-direction: column;
}

.city-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-xl);
}

.city-image {
    position: relative;
    height: 220px;
    overflow: hidden;
}

.city-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s ease;
}

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

.city-image-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(to top, rgba(0,0,0,0.6), transparent);
}

.city-rank {
    position: absolute;
    top: var(--space-4);
    left: var(--space-4);
    width: 36px;
    height: 36px;
    background: rgba(255, 255, 255, 0.95);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 800;
    font-size: 0.875rem;
    color: var(--primary-600);
}

.city-info {
    padding: var(--space-6);
    flex: 1;
    display: flex;
    flex-direction: column;
}

.city-info h3 {
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: var(--space-2);
    display: flex;
    align-items: center;
    gap: var(--space-2);
}

.city-weather {
    font-size: 0.875rem;
    color: var(--text-tertiary);
    margin-bottom: var(--space-3);
}

.city-recommend {
    color: var(--text-secondary);
    font-size: 0.95rem;
    line-height: 1.6;
    margin-bottom: var(--space-4);
    flex: 1;
}

.city-spots {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-2);
    margin-bottom: var(--space-5);
}

.spot-tag {
    padding: var(--space-1) var(--space-3);
    background: var(--primary-50);
    color: var(--primary-700);
    font-size: 0.8rem;
    font-weight: 500;
    border-radius: var(--radius-full);
}

.city-actions {
    display: flex;
    gap: var(--space-3);
}

/* ========================================
   行程规划页面 - 双栏布局
   ======================================== */
.plan-page {
    padding-top: 72px;
    min-height: 100vh;
    background: var(--bg-secondary);
}

/* 移动端侧边栏切换按钮 */
.mobile-sidebar-toggle {
    display: none;
    position: fixed;
    bottom: 20px;
    right: 20px;
    z-index: 999;
    padding: 12px 20px;
    background: var(--primary-600);
    color: white;
    border: none;
    border-radius: 50px;
    font-weight: 600;
    box-shadow: var(--shadow-lg);
    cursor: pointer;
    gap: 8px;
    transition: var(--transition-base);
}

.mobile-sidebar-toggle:hover {
    transform: scale(1.05);
    background: var(--primary-700);
}

/* 移动端侧边栏遮罩 */
.sidebar-overlay {
    display: none;
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.5);
    z-index: 99;
    opacity: 0;
    transition: opacity 0.3s ease;
}

.sidebar-overlay.active {
    display: block;
    opacity: 1;
}

.plan-container {
    display: flex;
    min-height: calc(100vh - 72px);
}

.plan-sidebar {
    width: 400px;
    flex-shrink: 0;
    background: var(--bg-primary);
    padding: var(--space-6);
    border-right: 1px solid var(--gray-200);
    overflow-y: auto;
    position: sticky;
    top: 72px;
    height: calc(100vh - 72px);
    transition: transform 0.3s ease;
}

.plan-sidebar-header {
    margin-bottom: var(--space-6);
}

.plan-sidebar-header h2 {
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: var(--space-2);
    display: flex;
    align-items: center;
    gap: var(--space-2);
}

.plan-sidebar-header p {
    color: var(--text-secondary);
    font-size: 0.9rem;
}

.plan-form {
    space-y: var(--space-5);
}

/* 自定义偏好输入区 */
.custom-preference-section {
    background: var(--primary-50);
    border: 2px dashed var(--primary-200);
    border-radius: var(--radius-lg);
    padding: var(--space-4);
    margin-bottom: var(--space-5);
}

.custom-preference-header {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    margin-bottom: var(--space-3);
}

.custom-preference-header h4 {
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--primary-700);
}

.preference-examples {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-2);
    margin-top: var(--space-3);
}

.example-chip {
    padding: var(--space-1) var(--space-2);
    background: white;
    border: 1px solid var(--primary-200);
    border-radius: var(--radius-full);
    font-size: 0.75rem;
    color: var(--primary-600);
    cursor: pointer;
    transition: var(--transition-fast);
}

.example-chip:hover {
    background: var(--primary-100);
}

.plan-tips-card {
    margin-top: var(--space-6);
    padding: var(--space-5);
    background: linear-gradient(135deg, #fef3c7, #fde68a);
    border-radius: var(--radius-lg);
}

.plan-tips-card h4 {
    font-size: 0.9rem;
    font-weight: 700;
    color: #92400e;
    margin-bottom: var(--space-3);
    display: flex;
    align-items: center;
    gap: var(--space-2);
}

.plan-tips-card ul {
    padding-left: var(--space-5);
    color: #a16207;
    font-size: 0.85rem;
}

.plan-tips-card li {
    margin-bottom: var(--space-2);
}

.plan-content {
    padding: var(--space-8);
    overflow-y: auto;
}

/* 状态显示 */
.initial-state {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    min-height: 600px;
    text-align: center;
    padding: var(--space-10);
}

.initial-illustration {
    width: 280px;
    height: 280px;
    background: linear-gradient(135deg, var(--primary-100), var(--primary-50));
    border-radius: var(--radius-2xl);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 6rem;
    margin-bottom: var(--space-8);
    animation: float 4s ease-in-out infinite;
}

.initial-state h3 {
    font-size: 1.75rem;
    font-weight: 700;
    margin-bottom: var(--space-3);
    color: var(--text-primary);
}

.initial-state p {
    color: var(--text-secondary);
    font-size: 1.1rem;
    max-width: 400px;
}

/* 加载状态 */
.loading-state {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    min-height: 600px;
}

.loading-container {
    text-align: center;
}

.loading-spinner-large {
    width: 80px;
    height: 80px;
    border: 4px solid var(--primary-100);
    border-top-color: var(--primary-500);
    border-radius: 50%;
    animation: spin 1s linear infinite;
    margin: 0 auto var(--space-8);
}

.loading-title {
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: var(--space-6);
    color: var(--text-primary);
}

.loading-steps {
    display: flex;
    flex-direction: column;
    gap: var(--space-4);
    max-width: 400px;
}

.loading-step {
    display: flex;
    align-items: center;
    gap: var(--space-4);
    padding: var(--space-4);
    background: var(--bg-primary);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
    transition: var(--transition-base);
}

.loading-step.active {
    box-shadow: var(--shadow-md);
    border-left: 4px solid var(--primary-500);
}

.loading-step.completed {
    opacity: 0.6;
    border-left: 4px solid var(--success);
}

.step-icon {
    width: 40px;
    height: 40px;
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.25rem;
    flex-shrink: 0;
}

.loading-step.active .step-icon {
    background: var(--primary-100);
}

.loading-step.completed .step-icon {
    background: #d1fae5;
}

.step-content {
    flex: 1;
}

.step-title {
    font-weight: 600;
    margin-bottom: var(--space-1);
}

.step-desc {
    font-size: 0.875rem;
    color: var(--text-tertiary);
}

/* 结果状态 */
.result-state {
    animation: fadeIn 0.5s ease;
}

/* 地图区域 */
.map-section {
    background: var(--bg-primary);
    border-radius: var(--radius-xl);
    padding: var(--space-5);
    box-shadow: var(--shadow-sm);
    margin-bottom: var(--space-6);
}

.plan-map {
    width: 100%;
    height: 450px;
    border-radius: var(--radius-lg);
}

.map-toolbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-top: var(--space-4);
    flex-wrap: wrap;
    gap: var(--space-3);
}

.map-legend {
    display: flex;
    gap: var(--space-4);
    flex-wrap: wrap;
}

.legend-item {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    font-size: 0.875rem;
    color: var(--text-secondary);
}

.legend-color {
    width: 12px;
    height: 12px;
    border-radius: 50%;
}

.map-actions {
    display: flex;
    gap: var(--space-2);
}

/* 行程概览卡片 */
.overview-card {
    background: linear-gradient(135deg, var(--primary-600), var(--secondary-color));
    color: white;
    padding: var(--space-8);
    border-radius: var(--radius-xl);
    margin-bottom: var(--space-6);
    position: relative;
    overflow: hidden;
}

.overview-card::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -20%;
    width: 400px;
    height: 400px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 50%;
}

.overview-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: var(--space-6);
    position: relative;
}

.overview-title h3 {
    font-size: 1.75rem;
    font-weight: 700;
    margin-bottom: var(--space-2);
}

.overview-route {
    opacity: 0.9;
    font-size: 1rem;
}

.overview-stats {
    display: flex;
    gap: var(--space-8);
    margin-bottom: var(--space-6);
    position: relative;
}

.stat-item {
    text-align: center;
}

.stat-value {
    font-size: 2.5rem;
    font-weight: 800;
    display: block;
}

.stat-label {
    font-size: 0.875rem;
    opacity: 0.9;
}

.overview-tips {
    background: rgba(255, 255, 255, 0.15);
    backdrop-filter: blur(10px);
    padding: var(--space-5);
    border-radius: var(--radius-lg);
    position: relative;
}

.overview-tips h4 {
    font-size: 0.9rem;
    font-weight: 600;
    margin-bottom: var(--space-2);
    display: flex;
    align-items: center;
    gap: var(--space-2);
}

.overview-tips p {
    line-height: 1.7;
    opacity: 0.95;
}

/* 导出按钮组 */
.export-toolbar {
    display: flex;
    gap: var(--space-3);
    justify-content: center;
    margin: var(--space-8) 0;
    flex-wrap: wrap;
}

.export-btn {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    padding: var(--space-3) var(--space-5);
    background: var(--bg-primary);
    border: 2px solid var(--gray-200);
    border-radius: var(--radius-lg);
    font-weight: 600;
    color: var(--text-primary);
    cursor: pointer;
    transition: var(--transition-fast);
}

.export-btn:hover {
    border-color: var(--primary-300);
    background: var(--primary-50);
    transform: translateY(-2px);
}

.export-btn.pdf { color: #dc2626; }
.export-btn.pdf:hover { background: #fef2f2; border-color: #fca5a5; }

.export-btn.word { color: #2563eb; }
.export-btn.word:hover { background: #eff6ff; border-color: #93c5fd; }

.export-btn.print { color: var(--text-secondary); }

/* 每日计划 */
.day-plans {
    display: flex;
    flex-direction: column;
    gap: var(--space-6);
}

.day-card {
    background: var(--bg-primary);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-sm);
    overflow: hidden;
}

.day-header {
    padding: var(--space-5) var(--space-6);
    background: linear-gradient(135deg, var(--gray-50), white);
    border-left: 4px solid;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.day-header.day-1 { border-left-color: #ef4444; }
.day-header.day-2 { border-left-color: #f97316; }
.day-header.day-3 { border-left-color: #eab308; }
.day-header.day-4 { border-left-color: #22c55e; }
.day-header.day-5 { border-left-color: #3b82f6; }
.day-header.day-6 { border-left-color: #a855f7; }
.day-header.day-7 { border-left-color: #ec4899; }

.day-title {
    display: flex;
    align-items: center;
    gap: var(--space-3);
}

.day-number {
    width: 44px;
    height: 44px;
    background: white;
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.25rem;
    box-shadow: var(--shadow-sm);
}

.day-header.day-1 .day-number { color: #ef4444; }
.day-header.day-2 .day-number { color: #f97316; }
.day-header.day-3 .day-number { color: #eab308; }
.day-header.day-4 .day-number { color: #22c55e; }
.day-header.day-5 .day-number { color: #3b82f6; }
.day-header.day-6 .day-number { color: #a855f7; }
.day-header.day-7 .day-number { color: #ec4899; }

.day-info h3 {
    font-size: 1.2rem;
    font-weight: 700;
}

.day-summary {
    color: var(--text-secondary);
    font-size: 0.875rem;
}

.day-meta {
    text-align: right;
}

.day-spot-count {
    font-size: 0.875rem;
    color: var(--text-tertiary);
}

.spots-list {
    padding: var(--space-5) var(--space-6);
}

.spot-item {
    display: flex;
    gap: var(--space-4);
    padding: var(--space-5) 0;
    border-bottom: 1px solid var(--gray-100);
}

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

.spot-marker {
    width: 36px;
    height: 36px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-weight: 700;
    font-size: 0.9rem;
    flex-shrink: 0;
}

.day-card.day-1 .spot-marker { background: #ef4444; }
.day-card.day-2 .spot-marker { background: #f97316; }
.day-card.day-3 .spot-marker { background: #eab308; }
.day-card.day-4 .spot-marker { background: #22c55e; }
.day-card.day-5 .spot-marker { background: #3b82f6; }
.day-card.day-6 .spot-marker { background: #a855f7; }
.day-card.day-7 .spot-marker { background: #ec4899; }

.spot-content {
    flex: 1;
}

.spot-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: var(--space-2);
}

.spot-content h4 {
    font-size: 1.1rem;
    font-weight: 700;
}

.spot-content h4 a {
    color: var(--text-primary);
}

.spot-content h4 a:hover {
    color: var(--primary-600);
}

.spot-actions {
    display: flex;
    gap: var(--space-2);
}

.spot-intro {
    color: var(--text-secondary);
    font-size: 0.95rem;
    line-height: 1.7;
    margin-bottom: var(--space-3);
}

.spot-reason {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    padding: var(--space-3);
    background: #fef3c7;
    border-radius: var(--radius-md);
    color: #92400e;
    font-size: 0.9rem;
}

/* ========================================
   详情页
   ======================================== */
.detail-page {
    padding-top: 72px;
    background: var(--bg-secondary);
}

.detail-hero {
    position: relative;
    padding: var(--space-12) var(--space-6);
    background: linear-gradient(135deg, var(--primary-600), var(--secondary-color));
    color: white;
}

.detail-hero-content {
    max-width: 1200px;
    margin: 0 auto;
}

.detail-breadcrumb {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    margin-bottom: var(--space-4);
    opacity: 0.9;
    font-size: 0.875rem;
}

.detail-breadcrumb a {
    color: rgba(255, 255, 255, 0.8);
}

.detail-breadcrumb a:hover {
    color: white;
}

.detail-hero h1 {
    font-size: clamp(1.75rem, 4vw, 2.5rem);
    font-weight: 800;
    margin-bottom: var(--space-3);
}

.detail-coords {
    display: flex;
    align-items: center;
    gap: var(--space-4);
    opacity: 0.9;
    font-size: 0.9rem;
    margin-bottom: var(--space-5);
    flex-wrap: wrap;
}

.detail-actions {
    display: flex;
    gap: var(--space-3);
    flex-wrap: wrap;
}

.detail-container {
    max-width: 1200px;
    margin: -var(--space-8) auto 0;
    padding: 0 var(--space-6) var(--space-12);
    display: grid;
    grid-template-columns: 1fr 380px;
    gap: var(--space-6);
    position: relative;
    z-index: 10;
}

.detail-main {
    display: flex;
    flex-direction: column;
    gap: var(--space-6);
}

.detail-sidebar {
    display: flex;
    flex-direction: column;
    gap: var(--space-6);
}

.detail-map-card {
    background: var(--bg-primary);
    border-radius: var(--radius-xl);
    padding: var(--space-5);
    box-shadow: var(--shadow-sm);
}

.detail-map {
    width: 100%;
    height: 350px;
    border-radius: var(--radius-lg);
}

.info-card {
    background: var(--bg-primary);
    border-radius: var(--radius-xl);
    padding: var(--space-5);
    box-shadow: var(--shadow-sm);
}

.info-card h3 {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    font-size: 1.1rem;
    font-weight: 700;
    margin-bottom: var(--space-4);
    padding-bottom: var(--space-3);
    border-bottom: 2px solid var(--gray-100);
}

.info-row {
    display: flex;
    align-items: flex-start;
    gap: var(--space-3);
    padding: var(--space-3) 0;
    border-bottom: 1px solid var(--gray-100);
}

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

.info-icon {
    width: 36px;
    height: 36px;
    background: var(--primary-50);
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.info-content {
    flex: 1;
}

.info-label {
    font-size: 0.8rem;
    color: var(--text-muted);
    margin-bottom: var(--space-1);
}

.info-value {
    font-weight: 600;
    color: var(--text-primary);
}

/* 天气卡片 */
.weather-main {
    display: flex;
    align-items: center;
    gap: var(--space-5);
    margin-bottom: var(--space-5);
}

.weather-icon-large {
    font-size: 4rem;
}

.weather-temp-large {
    font-size: 3rem;
    font-weight: 800;
}

.weather-desc-large {
    color: var(--text-secondary);
}

.weather-details {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-3);
    margin-bottom: var(--space-5);
}

.weather-detail-item {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    padding: var(--space-3);
    background: var(--gray-50);
    border-radius: var(--radius-lg);
}

.weather-detail-icon {
    width: 32px;
    height: 32px;
    background: white;
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
}

.weather-detail-label {
    font-size: 0.75rem;
    color: var(--text-muted);
}

.weather-detail-value {
    font-weight: 600;
    font-size: 0.9rem;
}

.weather-advice {
    padding: var(--space-4);
    background: linear-gradient(135deg, #dbeafe, #eff6ff);
    border-radius: var(--radius-lg);
    border-left: 4px solid var(--info);
}

.weather-advice h4 {
    font-size: 0.9rem;
    font-weight: 600;
    margin-bottom: var(--space-2);
    color: #1e40af;
}

.weather-advice p {
    font-size: 0.9rem;
    color: #1e3a8a;
}

/* 设施列表 */
.facility-list {
    list-style: none;
}

.facility-item {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    padding: var(--space-3) 0;
    border-bottom: 1px solid var(--gray-100);
}

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

.facility-icon {
    width: 40px;
    height: 40px;
    background: var(--gray-100);
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.25rem;
}

.facility-info {
    flex: 1;
}

.facility-name {
    font-weight: 600;
    font-size: 0.95rem;
    margin-bottom: var(--space-1);
}

.facility-meta {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    font-size: 0.8rem;
    color: var(--text-muted);
}

.facility-distance {
    display: flex;
    align-items: center;
    gap: var(--space-1);
}

/* 美食推荐 */
.food-item {
    padding: var(--space-4) 0;
    border-bottom: 1px solid var(--gray-100);
}

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

.food-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: var(--space-2);
}

.food-name {
    font-weight: 700;
}

.food-price {
    color: var(--accent-500);
    font-weight: 600;
}

.food-tags {
    display: flex;
    gap: var(--space-2);
    margin-bottom: var(--space-2);
}

.food-tag {
    padding: var(--space-1) var(--space-2);
    background: var(--primary-50);
    color: var(--primary-700);
    font-size: 0.75rem;
    border-radius: var(--radius-full);
}

.food-recommend {
    font-size: 0.875rem;
    color: var(--text-secondary);
    font-style: italic;
    padding: var(--space-2) var(--space-3);
    background: #fef3c7;
    border-radius: var(--radius-md);
    margin-bottom: var(--space-2);
}

.food-actions {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.food-distance {
    font-size: 0.8rem;
    color: var(--text-muted);
}

/* ========================================
   页脚
   ======================================== */
.footer {
    background: var(--gray-900);
    color: var(--gray-400);
    padding: var(--space-12) var(--space-6);
}

.footer-content {
    max-width: 1200px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: var(--space-10);
}

.footer-brand {
    max-width: 300px;
}

.footer-logo {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    font-size: 1.5rem;
    font-weight: 800;
    color: white;
    margin-bottom: var(--space-4);
}

.footer-desc {
    font-size: 0.9rem;
    line-height: 1.7;
    margin-bottom: var(--space-4);
}

.footer-title {
    font-size: 0.9rem;
    font-weight: 700;
    color: white;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: var(--space-4);
}

.footer-links {
    list-style: none;
}

.footer-links li {
    margin-bottom: var(--space-2);
}

.footer-links a {
    color: var(--gray-400);
    font-size: 0.9rem;
    transition: var(--transition-fast);
}

.footer-links a:hover {
    color: white;
}

.footer-bottom {
    max-width: 1200px;
    margin: var(--space-10) auto 0;
    padding-top: var(--space-6);
    border-top: 1px solid var(--gray-800);
    text-align: center;
    font-size: 0.85rem;
}

/* ========================================
   Toast 通知
   ======================================== */
.toast-container {
    position: fixed;
    bottom: var(--space-6);
    right: var(--space-6);
    z-index: 9999;
    display: flex;
    flex-direction: column;
    gap: var(--space-3);
}

.toast {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    padding: var(--space-4) var(--space-5);
    background: var(--bg-primary);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
    animation: slideInRight 0.3s ease;
    max-width: 400px;
}

.toast.success {
    border-left: 4px solid var(--success);
}

.toast.error {
    border-left: 4px solid var(--error);
}

.toast.warning {
    border-left: 4px solid var(--warning);
}

.toast-icon {
    font-size: 1.25rem;
}

.toast-content {
    flex: 1;
}

.toast-title {
    font-weight: 600;
    margin-bottom: var(--space-1);
}

.toast-message {
    font-size: 0.875rem;
    color: var(--text-secondary);
}

.toast-close {
    padding: var(--space-1);
    background: none;
    border: none;
    cursor: pointer;
    color: var(--text-muted);
    transition: var(--transition-fast);
}

.toast-close:hover {
    color: var(--text-primary);
}

/* ========================================
   响应式设计
   ======================================== */

/* 平板适配：侧边栏变窄但仍显示 */
@media (max-width: 1100px) and (min-width: 769px) {
    .plan-sidebar {
        width: 320px;
        padding: var(--space-4);
    }
    
    .plan-sidebar-header h2 {
        font-size: 1.1rem;
    }
    
    .form-label {
        font-size: 0.8rem;
    }
    
    .form-input, .form-select, .form-textarea {
        padding: 10px 12px;
        font-size: 0.9rem;
    }
    
    .tag-option {
        padding: 6px 10px;
        font-size: 0.8rem;
    }
    
    .custom-preference-section {
        padding: var(--space-3);
    }
}

@media (max-width: 1200px) {
    .plan-sidebar {
        width: 350px;
        padding: var(--space-5);
    }
}

@media (max-width: 992px) {
    .mobile-sidebar-toggle {
        display: flex;
        align-items: center;
    }
    
    .sidebar-overlay.active {
        display: block;
    }
    
    .plan-container {
        flex-direction: column;
    }
    
    .plan-sidebar {
        width: 85%;
        max-width: 400px;
        position: fixed;
        top: 72px;
        left: 0;
        bottom: 0;
        height: calc(100vh - 72px);
        z-index: 100;
        transform: translateX(-100%);
        border-right: none;
        padding: var(--space-5);
        box-shadow: var(--shadow-xl);
        border-radius: 0 var(--radius-xl) var(--radius-xl) 0;
    }
    
    .plan-sidebar.active {
        transform: translateX(0);
    }
    
    .plan-sidebar-header h2 {
        font-size: 1.25rem;
    }
    
    .plan-content {
        padding: var(--space-5);
    }
    
    .footer {
        margin-left: 0 !important;
    }
    
    .detail-container {
        grid-template-columns: 1fr;
    }
    
    .footer-content {
        grid-template-columns: 1fr 1fr;
    }
}

@media (max-width: 768px) {
    .nav-container {
        height: 64px;
        padding: 0 var(--space-4);
    }
    
    .nav-menu {
        gap: var(--space-1);
    }
    
    .nav-menu a {
        padding: var(--space-2) var(--space-3);
        font-size: 0.875rem;
    }
    
    .hero {
        padding: calc(64px + var(--space-8)) var(--space-4) var(--space-8);
    }
    
    .hero h1 {
        font-size: 2rem;
    }
    
    .hero-stats {
        flex-direction: column;
        gap: var(--space-6);
    }
    
    .plan-content {
        padding: var(--space-4);
    }
    
    .overview-stats {
        flex-direction: column;
        gap: var(--space-4);
    }
    
    .stat-value {
        font-size: 2rem;
    }
    
    .export-toolbar {
        flex-direction: column;
    }
    
    .day-header {
        flex-direction: column;
        align-items: flex-start;
        gap: var(--space-3);
    }
    
    .day-meta {
        text-align: left;
    }
    
    .spot-header {
        flex-direction: column;
        gap: var(--space-2);
    }
    
    .footer-content {
        grid-template-columns: 1fr;
        text-align: center;
    }
    
    .footer-brand {
        max-width: none;
    }
}

@media (max-width: 480px) {
    :root {
        --space-4: 0.875rem;
        --space-5: 1rem;
        --space-6: 1.25rem;
        --space-8: 1.5rem;
    }
    
    .hero-actions {
        flex-direction: column;
        width: 100%;
    }
    
    .hero-actions .btn {
        width: 100%;
    }
    
    .feature-grid {
        grid-template-columns: 1fr;
    }
    
    .city-grid {
        grid-template-columns: 1fr;
    }
    
    .weather-details {
        grid-template-columns: 1fr;
    }
}

/* ========================================
   打印样式
   ======================================== */
@media print {
    .navbar,
    .plan-sidebar,
    .export-toolbar,
    .btn-nav,
    .btn-nav-large,
    .btn-nav-small,
    .footer {
        display: none !important;
    }
    
    .plan-page {
        padding-top: 0;
    }
    
    .plan-content {
        width: 100%;
        padding: 0;
    }
    
    .map-section {
        display: none;
    }
    
    .day-card {
        break-inside: avoid;
        page-break-inside: avoid;
        box-shadow: none;
        border: 1px solid #ddd;
    }
    
    .overview-card {
        background: #f5f5f5 !important;
        color: #333 !important;
        -webkit-print-color-adjust: exact;
        print-color-adjust: exact;
    }
}


/* ========================================
   行程规划页面 v3 - 全新重构
   ======================================== */

/* 基础布局 */
.plan-body {
    min-height: 100vh;
    background: var(--bg-secondary);
}

/* 顶部导航 - 简化 */
.top-nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    height: 60px;
    background: #fff;
    border-bottom: 1px solid var(--gray-200);
    z-index: 1000;
    display: flex;
    align-items: center;
}

.nav-inner {
    width: 100%;
    max-width: 1600px;
    margin: 0 auto;
    padding: 0 20px;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.nav-brand {
    display: flex;
    align-items: center;
    gap: 8px;
    font-weight: 700;
    font-size: 1.25rem;
    color: var(--text-primary);
    text-decoration: none;
}

.brand-icon {
    width: 36px;
    height: 36px;
    background: linear-gradient(135deg, var(--primary-500), var(--primary-700));
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.1rem;
}

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

.nav-links a {
    padding: 8px 16px;
    border-radius: 8px;
    font-size: 0.9rem;
    font-weight: 500;
    color: var(--text-secondary);
    transition: all 0.2s;
    text-decoration: none;
}

.nav-links a:hover {
    background: var(--gray-100);
    color: var(--text-primary);
}

.nav-links a.active {
    background: var(--primary-50);
    color: var(--primary-600);
}

/* 移动端顶部栏 */
.mobile-top-bar {
    display: none;
    position: fixed;
    top: 60px;
    left: 0;
    right: 0;
    height: 50px;
    background: #fff;
    border-bottom: 1px solid var(--gray-200);
    z-index: 999;
    padding: 0 16px;
    align-items: center;
    gap: 12px;
}

.mob-btn {
    display: flex;
    align-items: center;
    gap: 6px;
    padding: 8px 14px;
    background: var(--primary-600);
    color: white;
    border: none;
    border-radius: 20px;
    font-size: 0.85rem;
    font-weight: 600;
    cursor: pointer;
}

.mob-divider {
    width: 1px;
    height: 24px;
    background: var(--gray-200);
}

.mob-status {
    font-size: 0.9rem;
    color: var(--text-secondary);
    flex: 1;
}

/* 主布局 */
.main-layout {
    display: flex;
    padding-top: 60px;
    min-height: 100vh;
}

/* 设置面板 */
.settings-panel {
    width: 360px;
    flex-shrink: 0;
    background: #fff;
    border-right: 1px solid var(--gray-200);
    height: calc(100vh - 60px);
    position: sticky;
    top: 60px;
    display: flex;
    flex-direction: column;
    transition: all 0.3s ease;
}

.settings-panel.collapsed {
    width: 60px;
    overflow: hidden;
}

.settings-panel.collapsed .panel-header,
.settings-panel.collapsed .panel-content {
    opacity: 0;
    pointer-events: none;
}

/* 面板折叠按钮 */
.panel-collapse-btn {
    position: absolute;
    right: -12px;
    top: 20px;
    width: 24px;
    height: 24px;
    background: #fff;
    border: 1px solid var(--gray-300);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 10px;
    color: var(--text-secondary);
    cursor: pointer;
    z-index: 10;
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
}

.panel-header {
    padding: 20px;
    border-bottom: 1px solid var(--gray-100);
    transition: opacity 0.2s;
}

.panel-header h2 {
    font-size: 1.1rem;
    font-weight: 700;
    margin-bottom: 4px;
}

.panel-header p {
    font-size: 0.85rem;
    color: var(--text-secondary);
}

.panel-content {
    flex: 1;
    overflow-y: auto;
    padding: 20px;
    transition: opacity 0.2s;
}

/* 表单区域 */
.form-section {
    margin-bottom: 20px;
}

.form-label {
    display: flex;
    align-items: center;
    gap: 6px;
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 8px;
}

.label-icon {
    font-size: 1rem;
}

.required {
    color: var(--error);
}

.optional {
    font-size: 0.75rem;
    color: var(--text-muted);
    font-weight: 400;
}

.form-control {
    width: 100%;
    padding: 10px 14px;
    border: 1.5px solid var(--gray-200);
    border-radius: 10px;
    font-size: 0.95rem;
    transition: all 0.2s;
}

.form-control:focus {
    outline: none;
    border-color: var(--primary-500);
    box-shadow: 0 0 0 3px rgba(99,102,241,0.1);
}

.form-control.textarea {
    min-height: 100px;
    resize: vertical;
    line-height: 1.6;
}

.input-hint {
    font-size: 0.75rem;
    color: var(--text-muted);
    margin-top: 4px;
}

/* 天数选择 */
.day-selector {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 8px;
}

.day-btn {
    padding: 10px;
    background: var(--gray-50);
    border: 1.5px solid var(--gray-200);
    border-radius: 10px;
    font-size: 0.85rem;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.2s;
}

.day-btn:hover {
    border-color: var(--primary-300);
    background: var(--primary-50);
}

.day-btn.active {
    background: var(--primary-600);
    border-color: var(--primary-600);
    color: white;
}

/* 标签云 */
.tag-cloud {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.tag {
    padding: 6px 12px;
    background: var(--gray-50);
    border: 1.5px solid var(--gray-200);
    border-radius: 20px;
    font-size: 0.8rem;
    cursor: pointer;
    transition: all 0.2s;
}

.tag:hover {
    border-color: var(--primary-300);
}

.tag.active {
    background: var(--primary-100);
    border-color: var(--primary-500);
    color: var(--primary-700);
}

/* 快捷芯片 */
.quick-chips {
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
    margin-top: 8px;
}

.chip {
    padding: 4px 10px;
    background: #fff;
    border: 1px solid var(--gray-200);
    border-radius: 12px;
    font-size: 0.75rem;
    color: var(--text-secondary);
    cursor: pointer;
    transition: all 0.2s;
}

.chip:hover {
    border-color: var(--primary-400);
    color: var(--primary-600);
}

/* 生成按钮 */
.generate-btn {
    width: 100%;
    padding: 14px;
    background: linear-gradient(135deg, var(--primary-600), var(--primary-700));
    color: white;
    border: none;
    border-radius: 12px;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    margin: 24px 0;
    box-shadow: 0 4px 12px rgba(99,102,241,0.3);
    transition: all 0.2s;
}

.generate-btn:hover:not(:disabled) {
    transform: translateY(-2px);
    box-shadow: 0 6px 16px rgba(99,102,241,0.4);
}

.generate-btn:disabled {
    opacity: 0.7;
    cursor: not-allowed;
}

.btn-loading {
    display: flex;
    align-items: center;
    gap: 8px;
}

/* 提示卡片 */
.tip-card {
    background: linear-gradient(135deg, #fef3c7, #fde68a);
    border-radius: 12px;
    padding: 16px;
}

.tip-title {
    font-weight: 700;
    font-size: 0.9rem;
    color: #92400e;
    margin-bottom: 8px;
}

.tip-card ul {
    padding-left: 16px;
    font-size: 0.8rem;
    color: #a16207;
}

.tip-card li {
    margin-bottom: 4px;
}

/* 抽屉遮罩 */
.drawer-overlay {
    display: none;
    position: fixed;
    inset: 0;
    background: rgba(0,0,0,0.5);
    z-index: 998;
    opacity: 0;
    transition: opacity 0.3s;
}

.drawer-overlay.active {
    display: block;
    opacity: 1;
}

/* 结果区域 */
.result-area {
    flex: 1;
    padding: 24px;
    min-height: calc(100vh - 60px);
}

/* 空状态 */
.empty-state {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    min-height: calc(100vh - 108px);
    text-align: center;
    padding: 40px;
}

.empty-illustration {
    position: relative;
    margin-bottom: 32px;
}

.illustration-bg {
    width: 200px;
    height: 200px;
    background: linear-gradient(135deg, var(--primary-100), var(--primary-50));
    border-radius: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 80px;
    animation: float 4s ease-in-out infinite;
}

.illustration-float {
    position: absolute;
    top: -10px;
    right: -10px;
    font-size: 40px;
    animation: float 3s ease-in-out infinite 0.5s;
}

.empty-state h3 {
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: 12px;
}

.empty-state p {
    color: var(--text-secondary);
    margin-bottom: 24px;
    line-height: 1.7;
}

.empty-features {
    display: flex;
    gap: 12px;
    flex-wrap: wrap;
    justify-content: center;
}

.feature-pill {
    padding: 8px 16px;
    background: #fff;
    border: 1px solid var(--gray-200);
    border-radius: 20px;
    font-size: 0.85rem;
    color: var(--text-secondary);
}

/* 加载状态 */
.loading-state {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: calc(100vh - 108px);
}

.loading-center {
    text-align: center;
}

.loading-spinner-large {
    width: 64px;
    height: 64px;
    border: 4px solid var(--gray-200);
    border-top-color: var(--primary-500);
    border-radius: 50%;
    animation: spin 1s linear infinite;
    margin: 0 auto 24px;
}

.loading-center h3 {
    font-size: 1.25rem;
    font-weight: 700;
    margin-bottom: 32px;
}

.loading-steps {
    display: flex;
    flex-direction: column;
    gap: 12px;
    max-width: 360px;
    margin: 0 auto;
}

.l-step {
    display: flex;
    align-items: center;
    gap: 16px;
    padding: 16px;
    background: #fff;
    border-radius: 12px;
    border-left: 3px solid transparent;
    opacity: 0.5;
    transition: all 0.3s;
}

.l-step.active {
    opacity: 1;
    border-left-color: var(--primary-500);
    box-shadow: 0 4px 12px rgba(0,0,0,0.08);
}

.l-step.done {
    opacity: 0.7;
    border-left-color: var(--success);
}

.l-step-icon {
    width: 40px;
    height: 40px;
    background: var(--gray-100);
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.25rem;
    flex-shrink: 0;
}

.l-step.active .l-step-icon {
    background: var(--primary-100);
}

.l-step.done .l-step-icon {
    background: #d1fae5;
}

.l-step-text {
    text-align: left;
}

.l-step-text strong {
    display: block;
    font-size: 0.95rem;
    margin-bottom: 2px;
}

.l-step-text span {
    font-size: 0.8rem;
    color: var(--text-secondary);
}

/* 结果内容 */
.result-content {
    max-width: 900px;
    margin: 0 auto;
}

/* 地图卡片 */
.map-card {
    background: #fff;
    border-radius: 16px;
    padding: 16px;
    margin-bottom: 24px;
    box-shadow: 0 2px 8px rgba(0,0,0,0.06);
}

.plan-map {
    width: 100%;
    height: 400px;
    border-radius: 12px;
}

.map-legend {
    display: flex;
    gap: 16px;
    flex-wrap: wrap;
    margin-top: 12px;
    padding-top: 12px;
    border-top: 1px solid var(--gray-100);
}

.legend-item {
    display: flex;
    align-items: center;
    gap: 6px;
    font-size: 0.85rem;
    color: var(--text-secondary);
}

.legend-dot {
    width: 10px;
    height: 10px;
    border-radius: 50%;
}

/* 概览卡片 */
.overview-card {
    background: linear-gradient(135deg, #4f46e5, #7c3aed);
    color: white;
    border-radius: 16px;
    padding: 24px;
    margin-bottom: 24px;
}

.ov-header h3 {
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: 4px;
}

.ov-header p {
    opacity: 0.9;
    font-size: 0.95rem;
}

.ov-stats {
    display: flex;
    gap: 32px;
    margin: 20px 0;
}

.ov-stat {
    text-align: center;
}

.ov-num {
    font-size: 2.5rem;
    font-weight: 800;
    display: block;
}

.ov-label {
    font-size: 0.9rem;
    opacity: 0.9;
}

.ov-tips {
    background: rgba(255,255,255,0.15);
    backdrop-filter: blur(10px);
    padding: 16px;
    border-radius: 12px;
}

.ov-tips strong {
    display: block;
    margin-bottom: 6px;
    font-size: 0.9rem;
}

.ov-tips p {
    font-size: 0.9rem;
    line-height: 1.6;
    opacity: 0.95;
}

/* 导出栏 */
.export-bar {
    display: flex;
    align-items: center;
    gap: 12px;
    flex-wrap: wrap;
    margin-bottom: 24px;
    padding: 16px;
    background: #fff;
    border-radius: 12px;
}

.export-bar.bottom {
    justify-content: center;
}

.export-label {
    font-size: 0.9rem;
    color: var(--text-secondary);
    margin-right: auto;
}

.export-btn {
    display: flex;
    align-items: center;
    gap: 6px;
    padding: 10px 16px;
    background: var(--gray-50);
    border: 1px solid var(--gray-200);
    border-radius: 10px;
    font-size: 0.85rem;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.2s;
}

.export-btn:hover {
    background: var(--gray-100);
    transform: translateY(-1px);
}

.export-btn.word {
    color: #2563eb;
    background: #eff6ff;
    border-color: #bfdbfe;
}

.export-btn.word:hover {
    background: #dbeafe;
}

.export-btn.pdf {
    color: #dc2626;
    background: #fef2f2;
    border-color: #fecaca;
}

.export-btn.pdf:hover {
    background: #fee2e2;
}

/* 日程容器 */
.days-container {
    display: flex;
    flex-direction: column;
    gap: 20px;
    margin-bottom: 24px;
}

.day-card {
    background: #fff;
    border-radius: 16px;
    overflow: hidden;
    box-shadow: 0 2px 8px rgba(0,0,0,0.06);
}

.day-header {
    display: flex;
    align-items: center;
    gap: 16px;
    padding: 20px;
    background: var(--gray-50);
    border-left: 4px solid;
}

.day-badge {
    width: 40px;
    height: 40px;
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-weight: 700;
    font-size: 1.1rem;
}

.day-info {
    flex: 1;
}

.day-info h4 {
    font-size: 1.1rem;
    font-weight: 700;
    margin-bottom: 2px;
}

.day-info p {
    font-size: 0.85rem;
    color: var(--text-secondary);
}

.day-count {
    font-size: 0.85rem;
    color: var(--text-muted);
    background: #fff;
    padding: 6px 12px;
    border-radius: 20px;
}

.day-spots {
    padding: 16px 20px;
}

.spot-row {
    display: flex;
    gap: 16px;
    padding: 16px 0;
    border-bottom: 1px solid var(--gray-100);
}

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

.spot-num {
    width: 32px;
    height: 32px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-weight: 700;
    font-size: 0.85rem;
    flex-shrink: 0;
}

.spot-detail {
    flex: 1;
}

.spot-title {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 8px;
    flex-wrap: wrap;
    gap: 8px;
}

.spot-title a:first-child {
    font-weight: 700;
    font-size: 1.05rem;
    color: var(--text-primary);
    text-decoration: none;
}

.spot-title a:first-child:hover {
    color: var(--primary-600);
}

.nav-btn {
    padding: 6px 12px;
    background: #10b981;
    color: white;
    border-radius: 6px;
    font-size: 0.75rem;
    font-weight: 500;
    text-decoration: none;
}

.spot-desc {
    color: var(--text-secondary);
    font-size: 0.9rem;
    line-height: 1.7;
    margin-bottom: 10px;
}

.spot-reason {
    display: flex;
    align-items: center;
    gap: 6px;
    padding: 10px 12px;
    background: #fef3c7;
    border-radius: 8px;
    color: #92400e;
    font-size: 0.85rem;
}

/* Toast */
.toast-container {
    position: fixed;
    bottom: 20px;
    right: 20px;
    z-index: 10000;
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.toast {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 14px 18px;
    background: #fff;
    border-radius: 12px;
    box-shadow: 0 10px 40px rgba(0,0,0,0.15);
    animation: slideInRight 0.3s ease;
    min-width: 280px;
    border-left: 4px solid;
}

.toast.success { border-left-color: var(--success); }
.toast.error { border-left-color: var(--error); }
.toast.warning { border-left-color: var(--warning); }

.toast-icon {
    font-size: 1.25rem;
}

.toast-body {
    flex: 1;
}

.toast-title {
    font-weight: 600;
    font-size: 0.95rem;
    margin-bottom: 2px;
}

.toast-msg {
    font-size: 0.85rem;
    color: var(--text-secondary);
}

.toast button {
    background: none;
    border: none;
    color: var(--text-muted);
    cursor: pointer;
    font-size: 1rem;
}

@keyframes slideInRight {
    from { opacity: 0; transform: translateX(100%); }
    to { opacity: 1; transform: translateX(0); }
}

/* =================== 响应式设计 =================== */

/* 平板适配 */
@media (max-width: 1100px) {
    .settings-panel {
        width: 320px;
    }
}

/* 小平板 */
@media (max-width: 900px) {
    .settings-panel {
        width: 280px;
        padding: 16px;
    }
    
    .panel-header h2 {
        font-size: 1rem;
    }
    
    .day-selector {
        grid-template-columns: repeat(3, 1fr);
    }
    
    .result-area {
        padding: 16px;
    }
}

/* 移动端 */
@media (max-width: 768px) {
    .mobile-top-bar {
        display: flex;
    }
    
    .main-layout {
        padding-top: 110px;
    }
    
    .settings-panel {
        position: fixed;
        top: 110px;
        left: 0;
        width: 85%;
        max-width: 360px;
        height: calc(100vh - 110px);
        z-index: 999;
        transform: translateX(-100%);
        transition: transform 0.3s ease;
    }
    
    .settings-panel.drawer-open {
        transform: translateX(0);
    }
    
    .panel-collapse-btn {
        display: none;
    }
    
    .result-area {
        padding: 16px;
        min-height: calc(100vh - 110px);
    }
    
    .empty-state {
        min-height: calc(100vh - 160px);
    }
    
    .empty-illustration .illustration-bg {
        width: 150px;
        height: 150px;
        font-size: 60px;
    }
    
    .plan-map {
        height: 280px;
    }
    
    .ov-stats {
        gap: 24px;
    }
    
    .ov-num {
        font-size: 2rem;
    }
    
    .export-bar {
        justify-content: center;
    }
    
    .export-label {
        display: none;
    }
    
    .day-header {
        flex-wrap: wrap;
        gap: 12px;
    }
    
    .spot-title {
        flex-direction: column;
        align-items: flex-start;
    }
}

/* 小屏手机 */
@media (max-width: 480px) {
    .nav-brand .brand-text {
        display: none;
    }
    
    .nav-links a {
        padding: 6px 12px;
        font-size: 0.85rem;
    }
    
    .day-selector {
        grid-template-columns: repeat(3, 1fr);
        gap: 6px;
    }
    
    .day-btn {
        padding: 8px 4px;
        font-size: 0.8rem;
    }
    
    .tag-cloud {
        gap: 6px;
    }
    
    .tag {
        padding: 5px 10px;
        font-size: 0.75rem;
    }
    
    .map-legend {
        gap: 10px;
    }
    
    .legend-item {
        font-size: 0.75rem;
    }
    
    .export-btn {
        padding: 8px 12px;
        font-size: 0.8rem;
    }
}

/* ========================================
   智游 Pro V4 - 智能增强样式
   ======================================== */

/* 智能提示条 */
.smart-tips {
    position: fixed;
    top: 70px;
    left: 50%;
    transform: translateX(-50%);
    z-index: 1001;
    background: linear-gradient(135deg, #4f46e5, #7c3aed);
    color: white;
    padding: 12px 20px;
    border-radius: 50px;
    display: flex;
    align-items: center;
    gap: 12px;
    box-shadow: 0 10px 40px rgba(79, 70, 229, 0.3);
    animation: slideDown 0.3s ease;
}

@keyframes slideDown {
    from { opacity: 0; transform: translateX(-50%) translateY(-20px); }
    to { opacity: 1; transform: translateX(-50%) translateY(0); }
}

.smart-tips button:first-of-type {
    padding: 6px 14px;
    background: white;
    color: #4f46e5;
    border: none;
    border-radius: 20px;
    font-weight: 600;
    font-size: 0.85rem;
    cursor: pointer;
}

.smart-tips button:last-child {
    background: none;
    border: none;
    color: white;
    opacity: 0.7;
    cursor: pointer;
}

/* 保存状态指示器 */
.save-status {
    display: flex;
    align-items: center;
    gap: 6px;
    margin-top: 8px;
    font-size: 0.75rem;
    color: var(--text-muted);
}

.status-dot {
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: #10b981;
}

.status-dot.saving {
    background: #f59e0b;
    animation: pulse 1s infinite;
}

@keyframes pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.5; }
}

/* 智能城市推荐 */
.smart-city-section {
    margin-bottom: 20px;
}

.smart-city-card {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 14px;
    background: linear-gradient(135deg, #dbeafe, #eff6ff);
    border: 1.5px solid #93c5fd;
    border-radius: 12px;
    cursor: pointer;
    transition: all 0.2s;
}

.smart-city-card:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(59, 130, 246, 0.15);
}

.sc-icon {
    font-size: 1.5rem;
}

.sc-info {
    flex: 1;
    display: flex;
    flex-direction: column;
}

.sc-label {
    font-size: 0.75rem;
    color: #3b82f6;
}

.sc-city {
    font-size: 1rem;
    font-weight: 700;
    color: #1e40af;
}

.sc-action {
    padding: 6px 12px;
    background: #3b82f6;
    color: white;
    border-radius: 20px;
    font-size: 0.8rem;
    font-weight: 600;
}

/* 历史记录区域 */
.history-section {
    margin-bottom: 20px;
    padding-bottom: 16px;
    border-bottom: 1px solid var(--gray-100);
}

.section-label {
    font-size: 0.8rem;
    font-weight: 600;
    color: var(--text-muted);
    margin-bottom: 10px;
}

.history-list {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.history-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 10px 12px;
    background: var(--gray-50);
    border-radius: 10px;
    cursor: pointer;
    transition: all 0.2s;
}

.history-item:hover {
    background: var(--primary-50);
}

.hi-info {
    display: flex;
    align-items: center;
    gap: 8px;
}

.hi-city {
    font-weight: 600;
    color: var(--text-primary);
}

.hi-days {
    font-size: 0.75rem;
    color: var(--text-muted);
    background: white;
    padding: 2px 8px;
    border-radius: 10px;
}

.hi-date {
    font-size: 0.75rem;
    color: var(--text-muted);
}

/* 快速历史标签（移动端顶部） */
.quick-history {
    display: flex;
    gap: 8px;
}

.qh-tag {
    padding: 4px 10px;
    background: var(--primary-100);
    color: var(--primary-700);
    border-radius: 12px;
    font-size: 0.8rem;
    cursor: pointer;
    white-space: nowrap;
}

/* 热门城市快捷选择 */
.hot-cities-quick {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-top: 10px;
    flex-wrap: wrap;
}

.hc-label {
    font-size: 0.75rem;
    color: var(--text-muted);
}

.hc-tag {
    padding: 4px 10px;
    background: var(--gray-100);
    border-radius: 12px;
    font-size: 0.75rem;
    color: var(--text-secondary);
    cursor: pointer;
    transition: all 0.2s;
}

.hc-tag:hover {
    background: var(--primary-100);
    color: var(--primary-600);
}

/* 清空草稿按钮 */
.clear-draft-btn {
    width: 100%;
    padding: 10px;
    background: none;
    border: 1.5px dashed var(--gray-300);
    border-radius: 10px;
    font-size: 0.85rem;
    color: var(--text-muted);
    cursor: pointer;
    margin-bottom: 16px;
    transition: all 0.2s;
}

.clear-draft-btn:hover {
    border-color: #ef4444;
    color: #ef4444;
    background: #fef2f2;
}

/* 进度条 */
.loading-progress {
    width: 200px;
    height: 4px;
    background: var(--gray-200);
    border-radius: 2px;
    margin: 20px auto;
    overflow: hidden;
}

.progress-bar {
    height: 100%;
    background: linear-gradient(90deg, #4f46e5, #7c3aed);
    border-radius: 2px;
    transition: width 0.3s;
    width: 0%;
}

.eta-text {
    font-size: 0.85rem;
    color: var(--text-muted);
    margin-top: 12px;
}

.eta-text span {
    font-weight: 600;
    color: var(--primary-600);
}

/* 成功横幅 */
.success-banner {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 12px 16px;
    background: linear-gradient(135deg, #d1fae5, #a7f3d0);
    border-radius: 12px;
    margin-bottom: 20px;
    color: #065f46;
    font-weight: 500;
}

.success-banner button {
    background: none;
    border: none;
    color: #065f46;
    cursor: pointer;
    opacity: 0.7;
}

/* 快速开始按钮 */
.quick-start-btns {
    margin-top: 24px;
    text-align: center;
}

.qs-label {
    font-size: 0.85rem;
    color: var(--text-muted);
    margin-bottom: 12px;
}

.qs-btns {
    display: flex;
    gap: 10px;
    justify-content: center;
    flex-wrap: wrap;
}

.qs-btn {
    padding: 10px 20px;
    background: white;
    border: 1.5px solid var(--primary-200);
    border-radius: 25px;
    font-size: 0.9rem;
    color: var(--primary-700);
    cursor: pointer;
    transition: all 0.2s;
}

.qs-btn:hover {
    background: var(--primary-50);
    border-color: var(--primary-400);
    transform: translateY(-2px);
}

/* 重新生成按钮 */
.export-btn.regenerate {
    background: #f3f4f6;
    color: #4b5563;
}

.export-btn.regenerate:hover {
    background: #e5e7eb;
}

/* 地图占位符 */
.map-placeholder {
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--gray-50);
    color: var(--text-muted);
    font-size: 1.1rem;
}

/* 响应式增强 */
@media (max-width: 768px) {
    .smart-tips {
        left: 16px;
        right: 16px;
        transform: none;
        border-radius: 12px;
        padding: 10px 16px;
        font-size: 0.9rem;
    }
    
    @keyframes slideDown {
        from { opacity: 0; transform: translateY(-20px); }
        to { opacity: 1; transform: translateY(0); }
    }
    
    .smart-tips button:first-of-type {
        padding: 5px 12px;
        font-size: 0.8rem;
    }
    
    .history-section {
        display: none;
    }
    
    .hot-cities-quick {
        gap: 6px;
    }
    
    .hc-tag {
        padding: 3px 8px;
        font-size: 0.7rem;
    }
    
    .success-banner {
        padding: 10px 14px;
        font-size: 0.9rem;
    }
    
    .qs-btns {
        flex-direction: column;
        align-items: center;
    }
    
    .qs-btn {
        width: 200px;
    }
}

@media (max-width: 480px) {
    .quick-history {
        display: none;
    }
}