/**
 * 恋爱星球 - 主样式文件
 * Love Planet - Main Stylesheet
 */

/* ==================== CSS变量定义 ==================== */
:root {
    /* 主题色 */
    --primary: #FF6B9D;
    --primary-light: #FFA8C5;
    --primary-dark: #C44569;
    --primary-gradient: linear-gradient(135deg, #FF6B9D 0%, #C44569 100%);
    --primary-gradient-light: linear-gradient(135deg, #FFA8C5 0%, #FF6B9D 100%);
    
    /* 辅助色 */
    --secondary: #667eea;
    --success: #2ED573;
    --warning: #FFA502;
    --danger: #FF4757;
    --info: #70A1FF;
    
    /* 粉色系背景 */
    --bg-pink-lightest: #FFF0F5;
    --bg-pink-lighter: #FFE4EC;
    --bg-pink-light: #FFC8DD;
    
    /* 中性色 */
    --gray-100: #f8f9fa;
    --gray-200: #e9ecef;
    --gray-300: #dee2e6;
    --gray-400: #ced4da;
    --gray-500: #adb5bd;
    --gray-600: #6c757d;
    --gray-700: #495057;
    --gray-800: #343a40;
    --gray-900: #212529;
    
    /* 背景色 */
    --bg-primary: #ffffff;
    --bg-secondary: #FFF5F7;
    --bg-tertiary: #FFE4EC;
    
    /* 文字色 */
    --text-primary: #333333;
    --text-secondary: #666666;
    --text-muted: #999999;
    
    /* 边框 */
    --border-color: #FFE4EC;
    --border-radius-sm: 8px;
    --border-radius: 12px;
    --border-radius-lg: 16px;
    --border-radius-xl: 24px;
    
    /* 阴影 */
    --shadow-sm: 0 2px 8px rgba(255, 107, 157, 0.08);
    --shadow: 0 4px 15px rgba(255, 107, 157, 0.15);
    --shadow-lg: 0 8px 30px rgba(255, 107, 157, 0.2);
    --shadow-primary: 0 4px 20px rgba(255, 107, 157, 0.3);
    
    /* 间距 */
    --spacing-xs: 4px;
    --spacing-sm: 8px;
    --spacing-md: 12px;
    --spacing-lg: 16px;
    --spacing-xl: 20px;
    --spacing-xxl: 24px;
    --spacing-xxxl: 32px;
    
    /* 字体 */
    --font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', sans-serif;
    --font-size-xs: 11px;
    --font-size-sm: 13px;
    --font-size-md: 15px;
    --font-size-lg: 17px;
    --font-size-xl: 20px;
    --font-size-xxl: 24px;
    --font-size-xxxl: 32px;
    
    /* 过渡 */
    --transition-fast: 0.15s ease;
    --transition: 0.3s ease;
    --transition-slow: 0.5s ease;
    
    /* 布局 */
    --navbar-height: 56px;
    --bottom-nav-height: 64px;
    --safe-area-bottom: env(safe-area-inset-bottom, 0px);
    --max-width: 480px;
}

/* ==================== 基础重置 ==================== */
*, *::before, *::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    -webkit-tap-highlight-color: transparent;
}

html {
    font-size: 16px;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-family);
    font-size: var(--font-size-md);
    line-height: 1.5;
    color: var(--text-primary);
    background: var(--bg-secondary);
    min-height: 100vh;
    overflow-x: hidden;
}

a {
    color: inherit;
    text-decoration: none;
}

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

button {
    font-family: inherit;
    cursor: pointer;
    border: none;
    background: none;
    outline: none;
}

input, textarea, select {
    font-family: inherit;
    outline: none;
}

/* ==================== 加载动画 ==================== */
#loading-screen {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: var(--bg-secondary);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 9999;
    transition: opacity 0.3s ease;
}

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

.loading-heart {
    width: 80px;
    height: 80px;
    margin: 0 auto;
    animation: heartbeat 1.2s ease-in-out infinite;
}

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

.heart-path {
    fill: var(--primary);
    filter: drop-shadow(0 4px 10px rgba(255, 107, 157, 0.4));
}

@keyframes heartbeat {
    0%, 100% { transform: scale(1); }
    50% { transform: scale(1.15); }
}

.loading-text {
    margin-top: var(--spacing-lg);
    color: var(--primary);
    font-size: var(--font-size-sm);
    font-weight: 500;
}

/* 加载遮罩 */
#loading-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(255, 255, 255, 0.8);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 9998;
    backdrop-filter: blur(2px);
}

.loading-spinner {
    width: 50px;
    height: 50px;
    animation: spin 1s linear infinite;
}

@keyframes spin {
    from { transform: rotate(0deg); }
    to { transform: rotate(360deg); }
}

/* ==================== 顶部导航栏 ==================== */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    height: var(--navbar-height);
    background: var(--bg-primary);
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 var(--spacing-lg);
    z-index: 1000;
    box-shadow: var(--shadow-sm);
}

.nav-left, .nav-right {
    display: flex;
    align-items: center;
    min-width: 60px;
}

.nav-right {
    justify-content: flex-end;
}

.nav-title {
    font-size: var(--font-size-lg);
    font-weight: 600;
    color: var(--primary);
    text-align: center;
    flex: 1;
}

.nav-btn {
    width: 36px;
    height: 36px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    color: var(--text-primary);
    transition: all var(--transition-fast);
}

.nav-btn:active {
    background: var(--bg-secondary);
    transform: scale(0.95);
}

.nav-btn svg {
    width: 22px;
    height: 22px;
}

/* ==================== 底部Tab导航栏 ==================== */
.bottom-nav {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    height: calc(var(--bottom-nav-height) + var(--safe-area-bottom));
    background: var(--bg-primary);
    display: flex;
    align-items: flex-start;
    justify-content: space-around;
    padding: var(--spacing-sm) 0 var(--safe-area-bottom);
    z-index: 1000;
    box-shadow: 0 -2px 10px rgba(0, 0, 0, 0.05);
}

.bottom-nav-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 4px;
    padding: var(--spacing-xs) var(--spacing-sm);
    color: var(--text-muted);
    font-size: var(--font-size-xs);
    transition: all var(--transition-fast);
    position: relative;
    flex: 1;
}

.bottom-nav-item.active {
    color: var(--primary);
}

.bottom-nav-item:active {
    transform: scale(0.95);
}

.nav-icon {
    width: 24px;
    height: 24px;
    transition: all var(--transition-fast);
}

.bottom-nav-item.active .nav-icon {
    transform: translateY(-2px);
    filter: drop-shadow(0 2px 4px rgba(255, 107, 157, 0.3));
}

.nav-label {
    font-weight: 500;
}

.nav-badge {
    position: absolute;
    top: 0;
    right: 20%;
    min-width: 18px;
    height: 18px;
    padding: 0 5px;
    background: var(--danger);
    color: white;
    font-size: 10px;
    font-weight: 600;
    border-radius: 9px;
    display: flex;
    align-items: center;
    justify-content: center;
    animation: badgePulse 2s ease-in-out infinite;
}

@keyframes badgePulse {
    0%, 100% { transform: scale(1); }
    50% { transform: scale(1.1); }
}

/* ==================== 主内容区 ==================== */
.main-content {
    padding-top: var(--navbar-height);
    padding-bottom: calc(var(--bottom-nav-height) + var(--safe-area-bottom) + var(--spacing-lg));
    min-height: 100vh;
    max-width: var(--max-width);
    margin: 0 auto;
}

.page {
    padding: var(--spacing-lg);
    animation: pageFadeIn 0.3s ease;
}

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

/* ==================== 登录/注册页 ==================== */
.auth-page {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: var(--spacing-xl);
    background: var(--bg-secondary);
}

.auth-logo {
    width: 100px;
    height: 100px;
    margin-bottom: var(--spacing-xl);
    animation: logoFloat 3s ease-in-out infinite;
}

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

.auth-title {
    font-size: var(--font-size-xxl);
    font-weight: 700;
    color: var(--primary);
    margin-bottom: var(--spacing-xs);
    background: var(--primary-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.auth-subtitle {
    font-size: var(--font-size-sm);
    color: var(--text-muted);
    margin-bottom: var(--spacing-xxxl);
}

.auth-card {
    width: 100%;
    max-width: 360px;
    background: var(--bg-primary);
    border-radius: var(--border-radius-lg);
    padding: var(--spacing-xxxl);
    box-shadow: var(--shadow);
}

.auth-form .form-group {
    margin-bottom: var(--spacing-lg);
}

.auth-form .form-label {
    display: block;
    font-size: var(--font-size-sm);
    color: var(--text-secondary);
    margin-bottom: var(--spacing-xs);
    font-weight: 500;
}

.auth-form .form-input {
    width: 100%;
    padding: var(--spacing-md) var(--spacing-lg);
    font-size: var(--font-size-md);
    border: 2px solid var(--border-color);
    border-radius: var(--border-radius);
    background: var(--bg-primary);
    transition: all var(--transition-fast);
}

.auth-form .form-input:focus {
    border-color: var(--primary-light);
    box-shadow: 0 0 0 3px rgba(255, 107, 157, 0.1);
}

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

.auth-btn {
    width: 100%;
    padding: var(--spacing-md);
    font-size: var(--font-size-lg);
    font-weight: 600;
    color: white;
    background: var(--primary-gradient);
    border-radius: var(--border-radius);
    margin-top: var(--spacing-md);
    box-shadow: var(--shadow-primary);
    transition: all var(--transition-fast);
}

.auth-btn:active {
    transform: translateY(2px);
    box-shadow: 0 2px 10px rgba(255, 107, 157, 0.3);
}

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

.auth-switch {
    text-align: center;
    margin-top: var(--spacing-lg);
    font-size: var(--font-size-sm);
    color: var(--text-secondary);
}

.auth-switch a {
    color: var(--primary);
    font-weight: 600;
}

/* ==================== 卡片组件 ==================== */
.card {
    background: var(--bg-primary);
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow);
    overflow: hidden;
    margin-bottom: var(--spacing-lg);
}

.card-header {
    padding: var(--spacing-lg);
    border-bottom: 1px solid var(--border-color);
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.card-title {
    font-size: var(--font-size-lg);
    font-weight: 600;
    color: var(--text-primary);
}

.card-body {
    padding: var(--spacing-lg);
}

.card-footer {
    padding: var(--spacing-md) var(--spacing-lg);
    border-top: 1px solid var(--border-color);
    background: var(--bg-secondary);
}

/* ==================== 按钮组件 ==================== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-xs);
    padding: var(--spacing-md) var(--spacing-lg);
    font-size: var(--font-size-md);
    font-weight: 500;
    border: none;
    border-radius: var(--border-radius);
    cursor: pointer;
    transition: all var(--transition-fast);
    text-decoration: none;
}

.btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

.btn-primary {
    background: var(--primary-gradient);
    color: white;
    box-shadow: var(--shadow-primary);
}

.btn-primary:active:not(:disabled) {
    transform: translateY(2px);
    box-shadow: 0 2px 8px rgba(255, 107, 157, 0.3);
}

.btn-secondary {
    background: var(--bg-secondary);
    color: var(--text-secondary);
}

.btn-secondary:active:not(:disabled) {
    background: var(--border-color);
}

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

.btn-outline:active:not(:disabled) {
    background: rgba(255, 107, 157, 0.1);
}

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

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

.btn-sm {
    padding: var(--spacing-xs) var(--spacing-md);
    font-size: var(--font-size-sm);
}

.btn-lg {
    padding: var(--spacing-md) var(--spacing-xl);
    font-size: var(--font-size-lg);
}

.btn-block {
    width: 100%;
}

.btn-circle {
    width: 48px;
    height: 48px;
    padding: 0;
    border-radius: 50%;
}

.btn-fab {
    position: fixed;
    bottom: calc(var(--bottom-nav-height) + var(--safe-area-bottom) + var(--spacing-lg));
    right: var(--spacing-lg);
    width: 56px;
    height: 56px;
    border-radius: 50%;
    background: var(--primary-gradient);
    color: white;
    box-shadow: var(--shadow-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 100;
    transition: all var(--transition-fast);
}

.btn-fab:active {
    transform: scale(0.95);
    box-shadow: var(--shadow);
}

.btn-fab svg {
    width: 24px;
    height: 24px;
}

/* ==================== 表单组件 ==================== */
.form-group {
    margin-bottom: var(--spacing-lg);
}

.form-label {
    display: block;
    margin-bottom: var(--spacing-xs);
    font-size: var(--font-size-sm);
    font-weight: 500;
    color: var(--text-primary);
}

.form-input,
.form-select,
.form-textarea {
    width: 100%;
    padding: var(--spacing-md);
    font-size: var(--font-size-md);
    color: var(--text-primary);
    background: var(--bg-primary);
    border: 1.5px solid var(--border-color);
    border-radius: var(--border-radius);
    transition: all var(--transition-fast);
}

.form-input:focus,
.form-select:focus,
.form-textarea:focus {
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(255, 107, 157, 0.1);
}

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

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

.form-select {
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath fill='%23999' d='M6 8L1 3h10z'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 12px center;
    padding-right: 32px;
}

.form-hint {
    font-size: var(--font-size-xs);
    color: var(--text-muted);
    margin-top: var(--spacing-xs);
}

/* ==================== 首页样式 ==================== */
.home-page {
    padding: var(--spacing-lg);
}

/* 情侣头像区域 */
.couple-header {
    background: var(--primary-gradient);
    border-radius: var(--border-radius-lg);
    padding: var(--spacing-xxxl) var(--spacing-lg);
    margin-bottom: var(--spacing-lg);
    text-align: center;
    position: relative;
    overflow: hidden;
}

.couple-header::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle, rgba(255,255,255,0.1) 0%, transparent 60%);
    animation: shimmer 3s ease-in-out infinite;
}

@keyframes shimmer {
    0%, 100% { transform: rotate(0deg); }
    50% { transform: rotate(180deg); }
}

.couple-avatars {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-lg);
    position: relative;
    z-index: 1;
}

.couple-avatar {
    width: 70px;
    height: 70px;
    border-radius: 50%;
    border: 3px solid white;
    object-fit: cover;
    box-shadow: 0 4px 15px rgba(0,0,0,0.1);
}

.couple-heart {
    width: 40px;
    height: 40px;
    background: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    animation: heartbeat 1.5s ease-in-out infinite;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
}

.couple-heart svg {
    width: 24px;
    height: 24px;
    fill: var(--primary);
}

.couple-days {
    color: white;
    font-size: var(--font-size-xl);
    font-weight: 700;
    position: relative;
    z-index: 1;
}

.couple-days-label {
    color: rgba(255,255,255,0.8);
    font-size: var(--font-size-sm);
    margin-top: var(--spacing-xs);
    position: relative;
    z-index: 1;
}

/* 纪念日卡片 */
.anniversary-card {
    background: linear-gradient(135deg, #FFE4EC 0%, #FFF0F5 100%);
    border-radius: var(--border-radius);
    padding: var(--spacing-lg);
    margin-bottom: var(--spacing-lg);
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.anniversary-info h3 {
    font-size: var(--font-size-sm);
    color: var(--text-muted);
    margin-bottom: var(--spacing-xs);
}

.anniversary-info .days {
    font-size: var(--font-size-xl);
    font-weight: 700;
    color: var(--primary);
}

.anniversary-date {
    font-size: var(--font-size-xs);
    color: var(--text-muted);
}

.anniversary-icon {
    width: 48px;
    height: 48px;
    background: var(--primary-gradient);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
}

.anniversary-icon svg {
    width: 24px;
    height: 24px;
    color: white;
}

/* 签到按钮 */
.sign-in-section {
    display: flex;
    justify-content: center;
    margin-bottom: var(--spacing-lg);
}

.sign-in-btn {
    width: 80px;
    height: 80px;
    border-radius: 50%;
    background: var(--primary-gradient);
    color: white;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 4px;
    box-shadow: var(--shadow-primary);
    transition: all var(--transition-fast);
    position: relative;
}

.sign-in-btn::before {
    content: '';
    position: absolute;
    top: -4px;
    left: -4px;
    right: -4px;
    bottom: -4px;
    border-radius: 50%;
    border: 2px dashed var(--primary-light);
    animation: rotate 10s linear infinite;
}

@keyframes rotate {
    from { transform: rotate(0deg); }
    to { transform: rotate(360deg); }
}

.sign-in-btn:active {
    transform: scale(0.95);
}

.sign-in-btn.signed {
    background: var(--gray-400);
    box-shadow: none;
}

.sign-in-btn.signed::before {
    display: none;
}

.sign-in-btn svg {
    width: 28px;
    height: 28px;
}

.sign-in-btn span {
    font-size: var(--font-size-xs);
    font-weight: 600;
}

/* 积分概览 */
.points-overview {
    background: var(--bg-primary);
    border-radius: var(--border-radius);
    padding: var(--spacing-lg);
    margin-bottom: var(--spacing-lg);
}

.points-overview h3 {
    font-size: var(--font-size-sm);
    color: var(--text-muted);
    margin-bottom: var(--spacing-md);
}

.points-comparison {
    display: flex;
    align-items: center;
    justify-content: space-around;
}

.points-user {
    text-align: center;
}

.points-user img {
    width: 48px;
    height: 48px;
    border-radius: 50%;
    margin-bottom: var(--spacing-xs);
    object-fit: cover;
}

.points-user .name {
    font-size: var(--font-size-xs);
    color: var(--text-muted);
    margin-bottom: 2px;
}

.points-user .score {
    font-size: var(--font-size-xl);
    font-weight: 700;
    color: var(--primary);
}

.points-vs {
    width: 40px;
    height: 40px;
    background: var(--bg-secondary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: var(--font-size-xs);
    font-weight: 700;
    color: var(--primary);
}

/* 快捷入口 */
.quick-actions {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-lg);
}

.quick-action-card {
    background: var(--bg-primary);
    border-radius: var(--border-radius);
    padding: var(--spacing-lg);
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    box-shadow: var(--shadow-sm);
    transition: all var(--transition-fast);
}

.quick-action-card:active {
    transform: scale(0.98);
    box-shadow: var(--shadow);
}

.quick-action-icon {
    width: 48px;
    height: 48px;
    border-radius: var(--border-radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
}

.quick-action-icon.pink {
    background: linear-gradient(135deg, #FFE4EC 0%, #FFC8DD 100%);
    color: var(--primary);
}

.quick-action-icon.blue {
    background: linear-gradient(135deg, #E0F2FE 0%, #BAE6FD 100%);
    color: var(--info);
}

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

.quick-action-info h4 {
    font-size: var(--font-size-md);
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 2px;
}

.quick-action-info p {
    font-size: var(--font-size-xs);
    color: var(--text-muted);
}

/* 列表卡片 */
.section-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: var(--spacing-md);
}

.section-title {
    font-size: var(--font-size-lg);
    font-weight: 600;
    color: var(--text-primary);
}

.section-more {
    font-size: var(--font-size-sm);
    color: var(--primary);
    display: flex;
    align-items: center;
    gap: 2px;
}

/* ==================== 任务页面 ==================== */
.tasks-page, .wishes-page, .messages-page, .profile-page, .couple-page {
    padding: var(--spacing-lg);
}

/* Tab切换 */
.tabs {
    display: flex;
    gap: var(--spacing-xs);
    margin-bottom: var(--spacing-lg);
    overflow-x: auto;
    padding-bottom: var(--spacing-xs);
    -webkit-overflow-scrolling: touch;
}

.tabs::-webkit-scrollbar {
    display: none;
}

.tab-item {
    padding: var(--spacing-sm) var(--spacing-md);
    font-size: var(--font-size-sm);
    color: var(--text-muted);
    background: var(--bg-primary);
    border-radius: var(--border-radius-xl);
    white-space: nowrap;
    transition: all var(--transition-fast);
    border: 1px solid transparent;
}

.tab-item.active {
    color: var(--primary);
    background: rgba(255, 107, 157, 0.1);
    border-color: var(--primary-light);
    font-weight: 500;
}

/* 任务卡片 */
.task-card, .wish-card {
    background: var(--bg-primary);
    border-radius: var(--border-radius);
    padding: var(--spacing-lg);
    margin-bottom: var(--spacing-md);
    box-shadow: var(--shadow-sm);
    transition: all var(--transition-fast);
}

.task-card:active, .wish-card:active {
    transform: scale(0.98);
}

.task-header, .wish-header {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    margin-bottom: var(--spacing-sm);
}

.task-title, .wish-title {
    font-size: var(--font-size-md);
    font-weight: 600;
    color: var(--text-primary);
    flex: 1;
    margin-right: var(--spacing-sm);
}

.task-status, .wish-status {
    padding: var(--spacing-xs) var(--spacing-sm);
    font-size: var(--font-size-xs);
    border-radius: var(--border-radius-sm);
    font-weight: 500;
}

.status-pending {
    background: #FFF3E0;
    color: var(--warning);
}

.status-accepted, .status-redeemed {
    background: #E3F2FD;
    color: var(--info);
}

.status-submitted {
    background: #F3E5F5;
    color: #9C27B0;
}

.status-completed, .status-fulfilled {
    background: #E8F5E9;
    color: var(--success);
}

.task-desc, .wish-desc {
    font-size: var(--font-size-sm);
    color: var(--text-secondary);
    margin-bottom: var(--spacing-md);
    line-height: 1.5;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.task-meta, .wish-meta {
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.task-tags, .wish-tags {
    display: flex;
    gap: var(--spacing-xs);
}

.tag {
    padding: 2px 8px;
    font-size: var(--font-size-xs);
    border-radius: var(--border-radius-sm);
    background: var(--bg-secondary);
    color: var(--text-muted);
}

.tag-primary {
    background: rgba(255, 107, 157, 0.1);
    color: var(--primary);
}

.task-points, .wish-points {
    display: flex;
    align-items: center;
    gap: 2px;
    font-size: var(--font-size-sm);
    font-weight: 600;
    color: var(--warning);
}

.task-points svg, .wish-points svg {
    width: 14px;
    height: 14px;
}

/* 难度星星 */
.difficulty {
    display: flex;
    gap: 2px;
}

.difficulty svg {
    width: 14px;
    height: 14px;
    fill: #FFD700;
}

.difficulty svg.empty {
    fill: var(--gray-300);
}

/* ==================== 愿望卡片网格 ==================== */
.wish-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--spacing-md);
}

.wish-grid-item {
    background: var(--bg-primary);
    border-radius: var(--border-radius);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
    transition: all var(--transition-fast);
}

.wish-grid-item:active {
    transform: scale(0.98);
}

.wish-cover {
    position: relative;
    width: 100%;
    height: 120px;
    object-fit: cover;
    background: var(--bg-secondary);
}

.wish-grid-info {
    padding: var(--spacing-md);
}

.wish-grid-title {
    font-size: var(--font-size-sm);
    font-weight: 500;
    color: var(--text-primary);
    margin-bottom: var(--spacing-xs);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.wish-grid-points {
    font-size: var(--font-size-xs);
    color: var(--warning);
    font-weight: 600;
}

/* ==================== 消息页面 ==================== */
.message-list {
    background: var(--bg-primary);
    border-radius: var(--border-radius);
    overflow: hidden;
}

.message-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    padding: var(--spacing-lg);
    border-bottom: 1px solid var(--border-color);
    transition: background var(--transition-fast);
}

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

.message-item:active {
    background: var(--bg-secondary);
}

.message-item.unread {
    background: rgba(255, 107, 157, 0.03);
}

.message-icon {
    width: 44px;
    height: 44px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.message-icon.couple {
    background: linear-gradient(135deg, #FFE4EC 0%, #FFC8DD 100%);
    color: var(--primary);
}

.message-icon.task {
    background: linear-gradient(135deg, #E0F2FE 0%, #BAE6FD 100%);
    color: var(--info);
}

.message-icon.wish {
    background: linear-gradient(135deg, #FFF3E0 0%, #FFE0B2 100%);
    color: var(--warning);
}

.message-icon.system {
    background: linear-gradient(135deg, #E8F5E9 0%, #C8E6C9 100%);
    color: var(--success);
}

.message-icon svg {
    width: 22px;
    height: 22px;
}

.message-content {
    flex: 1;
    min-width: 0;
}

.message-title {
    font-size: var(--font-size-md);
    font-weight: 500;
    color: var(--text-primary);
    margin-bottom: 2px;
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
}

.message-text {
    font-size: var(--font-size-sm);
    color: var(--text-secondary);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.message-time {
    font-size: var(--font-size-xs);
    color: var(--text-muted);
    flex-shrink: 0;
}

.unread-dot {
    width: 8px;
    height: 8px;
    background: var(--danger);
    border-radius: 50%;
    flex-shrink: 0;
}

/* ==================== 个人中心 ==================== */
.profile-header {
    background: var(--primary-gradient);
    border-radius: var(--border-radius-lg);
    padding: var(--spacing-xxxl) var(--spacing-lg);
    text-align: center;
    margin-bottom: var(--spacing-lg);
    position: relative;
    overflow: hidden;
}

.profile-header::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle, rgba(255,255,255,0.1) 0%, transparent 60%);
}

.profile-avatar-wrap {
    position: relative;
    display: inline-block;
    margin-bottom: var(--spacing-md);
}

.profile-avatar {
    width: 90px;
    height: 90px;
    border-radius: 50%;
    border: 4px solid rgba(255,255,255,0.3);
    object-fit: cover;
    position: relative;
    z-index: 1;
}

.profile-avatar-edit {
    position: absolute;
    bottom: 0;
    right: 0;
    width: 32px;
    height: 32px;
    background: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--primary);
    box-shadow: 0 2px 8px rgba(0,0,0,0.1);
    z-index: 2;
}

.profile-avatar-edit svg {
    width: 16px;
    height: 16px;
}

.profile-name {
    font-size: var(--font-size-xl);
    font-weight: 600;
    color: white;
    margin-bottom: var(--spacing-xs);
    position: relative;
    z-index: 1;
}

.profile-id {
    font-size: var(--font-size-sm);
    color: rgba(255,255,255,0.8);
    position: relative;
    z-index: 1;
}

.profile-stats {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-lg);
}

.profile-stat-card {
    background: var(--bg-primary);
    border-radius: var(--border-radius);
    padding: var(--spacing-lg);
    text-align: center;
    box-shadow: var(--shadow-sm);
}

.profile-stat-value {
    font-size: var(--font-size-xl);
    font-weight: 700;
    color: var(--primary);
    margin-bottom: 2px;
}

.profile-stat-label {
    font-size: var(--font-size-xs);
    color: var(--text-muted);
}

/* 菜单列表 */
.menu-list {
    background: var(--bg-primary);
    border-radius: var(--border-radius);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
}

.menu-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    padding: var(--spacing-lg);
    border-bottom: 1px solid var(--border-color);
    transition: background var(--transition-fast);
}

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

.menu-item:active {
    background: var(--bg-secondary);
}

.menu-icon {
    width: 40px;
    height: 40px;
    border-radius: var(--border-radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.menu-icon.pink {
    background: rgba(255, 107, 157, 0.1);
    color: var(--primary);
}

.menu-icon.blue {
    background: rgba(112, 161, 255, 0.1);
    color: var(--info);
}

.menu-icon.green {
    background: rgba(46, 213, 115, 0.1);
    color: var(--success);
}

.menu-icon.orange {
    background: rgba(255, 165, 2, 0.1);
    color: var(--warning);
}

.menu-icon.red {
    background: rgba(255, 71, 87, 0.1);
    color: var(--danger);
}

.menu-icon svg {
    width: 20px;
    height: 20px;
}

.menu-text {
    flex: 1;
    font-size: var(--font-size-md);
    color: var(--text-primary);
}

.menu-arrow {
    color: var(--text-muted);
}

.menu-arrow svg {
    width: 18px;
    height: 18px;
}

/* 邀请码 */
.invite-code-section {
    background: var(--bg-primary);
    border-radius: var(--border-radius);
    padding: var(--spacing-lg);
    margin-bottom: var(--spacing-lg);
    box-shadow: var(--shadow-sm);
}

.invite-code-label {
    font-size: var(--font-size-sm);
    color: var(--text-muted);
    margin-bottom: var(--spacing-sm);
}

.invite-code-box {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
}

.invite-code {
    flex: 1;
    font-size: var(--font-size-xl);
    font-weight: 700;
    color: var(--primary);
    font-family: monospace;
    letter-spacing: 2px;
    padding: var(--spacing-md);
    background: var(--bg-secondary);
    border-radius: var(--border-radius-sm);
    text-align: center;
}

.invite-code-copy {
    padding: var(--spacing-md);
    background: var(--primary-gradient);
    color: white;
    border-radius: var(--border-radius-sm);
    font-size: var(--font-size-sm);
    font-weight: 500;
}

/* ==================== 情侣空间 ==================== */
.couple-status-card {
    background: var(--bg-primary);
    border-radius: var(--border-radius);
    padding: var(--spacing-xxxl) var(--spacing-lg);
    text-align: center;
    margin-bottom: var(--spacing-lg);
    box-shadow: var(--shadow-sm);
}

.couple-status-icon {
    width: 80px;
    height: 80px;
    margin: 0 auto var(--spacing-lg);
    background: var(--bg-secondary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
}

.couple-status-icon svg {
    width: 40px;
    height: 40px;
    color: var(--primary);
}

.couple-status-title {
    font-size: var(--font-size-lg);
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: var(--spacing-xs);
}

.couple-status-desc {
    font-size: var(--font-size-sm);
    color: var(--text-secondary);
    margin-bottom: var(--spacing-lg);
}

/* 绑定表单 */
.bind-form {
    background: var(--bg-primary);
    border-radius: var(--border-radius);
    padding: var(--spacing-lg);
    box-shadow: var(--shadow-sm);
}

.bind-form .form-group {
    margin-bottom: var(--spacing-lg);
}

.bind-form .form-label {
    font-size: var(--font-size-sm);
    color: var(--text-secondary);
    margin-bottom: var(--spacing-xs);
}

.bind-form .form-input {
    text-align: center;
    font-size: var(--font-size-xl);
    font-weight: 600;
    letter-spacing: 4px;
    text-transform: uppercase;
}

/* 情侣信息卡片 */
.couple-info-card {
    background: var(--bg-primary);
    border-radius: var(--border-radius);
    padding: var(--spacing-lg);
    margin-bottom: var(--spacing-lg);
    box-shadow: var(--shadow-sm);
}

.couple-info-header {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-lg);
}

.couple-partner-avatar {
    width: 60px;
    height: 60px;
    border-radius: 50%;
    object-fit: cover;
    border: 2px solid var(--border-color);
}

.couple-partner-info {
    flex: 1;
}

.couple-partner-name {
    font-size: var(--font-size-lg);
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 2px;
}

.couple-partner-bio {
    font-size: var(--font-size-sm);
    color: var(--text-secondary);
}

/* ==================== Toast提示 ==================== */
#toast-container {
    position: fixed;
    top: calc(var(--navbar-height) + var(--spacing-md));
    left: 50%;
    transform: translateX(-50%);
    z-index: 10000;
    pointer-events: none;
}

.toast {
    background: var(--bg-primary);
    color: var(--text-primary);
    padding: var(--spacing-md) var(--spacing-lg);
    border-radius: var(--border-radius);
    font-size: var(--font-size-sm);
    box-shadow: var(--shadow-lg);
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-sm);
    opacity: 0;
    transform: translateY(-20px);
    transition: all 0.3s ease;
    pointer-events: auto;
    min-width: 200px;
    justify-content: center;
}

.toast.show {
    opacity: 1;
    transform: translateY(0);
}

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

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

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

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

.toast-icon {
    width: 20px;
    height: 20px;
    flex-shrink: 0;
}

/* ==================== 模态框 ==================== */
.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.5);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 10001;
    padding: var(--spacing-lg);
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s ease;
}

.modal-overlay.show {
    opacity: 1;
    visibility: visible;
}

.modal-content {
    background: var(--bg-primary);
    border-radius: var(--border-radius-lg);
    width: 100%;
    max-width: 400px;
    max-height: 90vh;
    overflow: hidden;
    transform: scale(0.9) translateY(20px);
    transition: all 0.3s ease;
}

.modal-overlay.show .modal-content {
    transform: scale(1) translateY(0);
}

.modal-header {
    padding: var(--spacing-lg);
    border-bottom: 1px solid var(--border-color);
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.modal-title {
    font-size: var(--font-size-lg);
    font-weight: 600;
    color: var(--text-primary);
}

.modal-close {
    width: 32px;
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-muted);
    border-radius: 50%;
    transition: all var(--transition-fast);
}

.modal-close:active {
    background: var(--bg-secondary);
}

.modal-close svg {
    width: 20px;
    height: 20px;
}

.modal-body {
    padding: var(--spacing-lg);
    overflow-y: auto;
    max-height: calc(90vh - 140px);
}

.modal-footer {
    padding: var(--spacing-md) var(--spacing-lg);
    border-top: 1px solid var(--border-color);
    display: flex;
    gap: var(--spacing-md);
    justify-content: flex-end;
}

/* ==================== 空状态 ==================== */
.empty-state {
    text-align: center;
    padding: var(--spacing-xxxl) var(--spacing-lg);
}

.empty-icon {
    width: 120px;
    height: 120px;
    margin: 0 auto var(--spacing-lg);
    background: var(--bg-secondary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
}

.empty-icon::before {
    content: '';
    position: absolute;
    width: 80px;
    height: 80px;
    background: var(--bg-tertiary);
    border-radius: 50%;
}

.empty-icon svg {
    width: 40px;
    height: 40px;
    color: var(--primary-light);
    position: relative;
    z-index: 1;
}

.empty-title {
    font-size: var(--font-size-lg);
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: var(--spacing-xs);
}

.empty-desc {
    font-size: var(--font-size-sm);
    color: var(--text-muted);
    margin-bottom: var(--spacing-lg);
}

/* ==================== 详情页 ==================== */
.detail-page {
    padding: var(--spacing-lg);
}

.detail-header {
    background: var(--bg-primary);
    border-radius: var(--border-radius);
    padding: var(--spacing-lg);
    margin-bottom: var(--spacing-lg);
    box-shadow: var(--shadow-sm);
}

.detail-title {
    font-size: var(--font-size-xl);
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: var(--spacing-md);
}

.detail-meta {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-lg);
}

.detail-meta-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    font-size: var(--font-size-sm);
    color: var(--text-secondary);
}

.detail-meta-item svg {
    width: 16px;
    height: 16px;
}

.detail-section {
    background: var(--bg-primary);
    border-radius: var(--border-radius);
    padding: var(--spacing-lg);
    margin-bottom: var(--spacing-lg);
    box-shadow: var(--shadow-sm);
}

.detail-section-title {
    font-size: var(--font-size-md);
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: var(--spacing-md);
}

.detail-section-content {
    font-size: var(--font-size-md);
    color: var(--text-secondary);
    line-height: 1.6;
}

.detail-actions {
    display: flex;
    gap: var(--spacing-md);
    padding: var(--spacing-lg);
    background: var(--bg-primary);
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-sm);
}

.detail-actions .btn {
    flex: 1;
}

/* 证明图片 */
.proof-image {
    width: 100%;
    border-radius: var(--border-radius-sm);
    margin-top: var(--spacing-md);
}

/* ==================== 表单页面 ==================== */
.form-page {
    padding: var(--spacing-lg);
}

.form-card {
    background: var(--bg-primary);
    border-radius: var(--border-radius);
    padding: var(--spacing-lg);
    box-shadow: var(--shadow-sm);
}

.template-list {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-sm);
    margin-top: var(--spacing-xs);
}

.template-tag {
    padding: var(--spacing-xs) var(--spacing-md);
    font-size: var(--font-size-xs);
    background: var(--bg-secondary);
    border-radius: var(--border-radius-xl);
    color: var(--text-secondary);
    transition: all var(--transition-fast);
}

.template-tag:active {
    background: var(--primary-light);
    color: white;
}

/* ==================== 爱心飘落动画 ==================== */
.falling-hearts {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: 9999;
    overflow: hidden;
}

.falling-heart {
    position: absolute;
    color: var(--primary-light);
    font-size: 20px;
    animation: fall linear infinite;
    opacity: 0.6;
}

@keyframes fall {
    0% {
        transform: translateY(-100px) rotate(0deg);
        opacity: 1;
    }
    100% {
        transform: translateY(100vh) rotate(360deg);
        opacity: 0;
    }
}

/* ==================== 页面切换动画 ==================== */
.page-slide-enter {
    animation: slideInRight 0.3s ease;
}

.page-slide-exit {
    animation: slideOutLeft 0.3s ease;
}

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

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

/* ==================== 涟漪效果 ==================== */
.ripple {
    position: absolute;
    border-radius: 50%;
    background: rgba(255, 107, 157, 0.3);
    transform: scale(0);
    animation: rippleEffect 0.6s ease-out;
    pointer-events: none;
}

@keyframes rippleEffect {
    to {
        transform: scale(4);
        opacity: 0;
    }
}

/* ==================== 响应式适配 ==================== */
@media (min-width: 481px) {
    body {
        background: linear-gradient(135deg, #FFE4EC 0%, #FFF0F5 50%, #FFE4EC 100%);
    }
    
    #app {
        max-width: 480px;
        margin: 0 auto;
        min-height: 100vh;
        background: var(--bg-secondary);
        box-shadow: 0 0 40px rgba(255, 107, 157, 0.1);
    }
    
    .navbar, .bottom-nav {
        max-width: 480px;
        left: 50%;
        transform: translateX(-50%);
    }
}

@media (max-width: 480px) {
    :root {
        --font-size-xl: 18px;
        --font-size-xxl: 22px;
        --font-size-xxxl: 28px;
    }
}

/* ==================== 工具类 ==================== */
.text-center { text-align: center; }
.text-left { text-align: left; }
.text-right { text-align: right; }

.text-primary { color: var(--primary); }
.text-secondary { color: var(--text-secondary); }
.text-muted { color: var(--text-muted); }
.text-success { color: var(--success); }
.text-danger { color: var(--danger); }
.text-warning { color: var(--warning); }

.bg-primary { background: var(--bg-primary); }
.bg-secondary { background: var(--bg-secondary); }

.d-flex { display: flex; }
.d-block { display: block; }
.d-none { display: none !important; }
.d-inline-flex { display: inline-flex; }

.flex-1 { flex: 1; }
.flex-column { flex-direction: column; }
.align-center { align-items: center; }
.justify-center { justify-content: center; }
.justify-between { justify-content: space-between; }
.gap-sm { gap: var(--spacing-sm); }
.gap-md { gap: var(--spacing-md); }
.gap-lg { gap: var(--spacing-lg); }

.mt-sm { margin-top: var(--spacing-sm); }
.mt-md { margin-top: var(--spacing-md); }
.mt-lg { margin-top: var(--spacing-lg); }
.mb-sm { margin-bottom: var(--spacing-sm); }
.mb-md { margin-bottom: var(--spacing-md); }
.mb-lg { margin-bottom: var(--spacing-lg); }
.ml-auto { margin-left: auto; }
.mr-auto { margin-right: auto; }

.p-sm { padding: var(--spacing-sm); }
.p-md { padding: var(--spacing-md); }
.p-lg { padding: var(--spacing-lg); }

.rounded { border-radius: var(--border-radius); }
.rounded-lg { border-radius: var(--border-radius-lg); }

.shadow { box-shadow: var(--shadow); }
.shadow-lg { box-shadow: var(--shadow-lg); }

.w-full { width: 100%; }
.h-full { height: 100%; }

.overflow-hidden { overflow: hidden; }
.overflow-auto { overflow: auto; }

.truncate {
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.line-clamp-2 {
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}