* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    -webkit-tap-highlight-color: transparent;
}

html {
    font-size: 16px;
    -webkit-text-size-adjust: 100%;
    -ms-text-size-adjust: 100%;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, 'Noto Sans', sans-serif, 'Apple Color Emoji', 'Segoe UI Emoji';
    background: linear-gradient(135deg, #667eea 0%, #764ba2 50%, #f093fb 100%);
    background-attachment: fixed;
    min-height: 100vh;
    padding: 20px;
    color: #1a202c;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* 移动端优化 */
@media (max-width: 768px) {
    body {
        padding: 10px;
    }
    
    html {
        font-size: 14px;
    }
}

.container {
    max-width: 1000px;
    margin: 0 auto;
}

/* 语言切换器 */
.language-switcher {
    display: flex;
    justify-content: center;
    gap: 12px;
    margin-bottom: 30px;
    flex-wrap: wrap;
}

.lang-btn {
    padding: 10px 22px;
    border-radius: 12px;
    background: linear-gradient(135deg, rgba(102, 126, 234, 0.1) 0%, rgba(118, 75, 162, 0.1) 100%);
    backdrop-filter: blur(10px);
    color: #667eea;
    text-decoration: none;
    font-weight: 600;
    font-size: 14px;
    transition: all 0.3s ease;
    border: 2px solid rgba(102, 126, 234, 0.2);
}

.lang-btn:hover {
    background: linear-gradient(135deg, rgba(102, 126, 234, 0.2) 0%, rgba(118, 75, 162, 0.2) 100%);
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(102, 126, 234, 0.25);
    border-color: rgba(102, 126, 234, 0.4);
}

.lang-btn.active {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    box-shadow: 0 6px 20px rgba(102, 126, 234, 0.4);
    border-color: transparent;
}

/* 主卡片 */
.card {
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(20px);
    border-radius: 30px;
    padding: 40px;
    box-shadow: 0 20px 60px rgba(0,0,0,0.3);
    border: 1px solid rgba(255, 255, 255, 0.5);
}

/* 标题 */
.header {
    text-align: center;
    margin-bottom: 40px;
}

.header h1 {
    font-size: 2.8rem;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 15px;
    font-weight: 800;
    letter-spacing: -0.5px;
}

.subtitle {
    font-size: 1.15rem;
    color: #4a5568;
    font-weight: 500;
}

/* 成功消息 */
.success-message {
    background: linear-gradient(135deg, #10b981 0%, #059669 100%);
    color: white;
    padding: 20px;
    border-radius: 15px;
    margin-bottom: 30px;
    box-shadow: 0 4px 15px rgba(16, 185, 129, 0.3);
    animation: slideInDown 0.5s ease-out;
}

.success-message h3 {
    margin-bottom: 15px;
    font-size: 1.3rem;
}

.success-message p {
    margin: 8px 0;
    font-size: 0.95rem;
}

/* 错误消息 */
.error-message {
    background: linear-gradient(135deg, #ef4444 0%, #dc2626 100%);
    color: white;
    padding: 20px;
    border-radius: 15px;
    margin-bottom: 30px;
    box-shadow: 0 4px 15px rgba(239, 68, 68, 0.3);
    animation: shake 0.5s ease-out;
}

.error-message h3 {
    margin-bottom: 15px;
    font-size: 1.3rem;
}

.error-message p {
    margin: 8px 0;
    font-size: 0.95rem;
}

/* 动画效果 */
@keyframes slideInDown {
    from {
        opacity: 0;
        transform: translateY(-30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes shake {
    0%, 100% {
        transform: translateX(0);
    }
    10%, 30%, 50%, 70%, 90% {
        transform: translateX(-10px);
    }
    20%, 40%, 60%, 80% {
        transform: translateX(10px);
    }
}

/* 表单 */
.booking-form {
    display: flex;
    flex-direction: column;
    gap: 30px;
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: 12px;
    position: relative;
}

.form-group label {
    font-size: 1.1rem;
    font-weight: 600;
    color: #374151;
}

.form-group select,
.form-group input,
.form-group textarea {
    padding: 12px 16px;
    border: 2px solid #d1d5db;
    border-radius: 12px;
    font-size: 1rem;
    transition: all 0.3s ease;
    background: white;
    cursor: pointer;
}

.form-group select:focus,
.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: #9333ea;
    box-shadow: 0 0 0 3px rgba(147, 51, 234, 0.1);
}

/* 字段错误样式 */
.form-group select.error,
.form-group input.error,
.form-group textarea.error {
    border-color: #ef4444;
    background-color: #fef2f2;
}

.field-error {
    color: #ef4444;
    font-size: 0.875rem;
    margin-top: 4px;
    display: none;
    animation: fadeInDown 0.3s ease-out;
}

/* 表单级错误 */
.form-error {
    margin-bottom: 20px;
}

/* 服务类型网格 */
.service-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 15px;
}

.service-option {
    position: relative;
    cursor: pointer;
}

.service-option input[type="radio"] {
    position: absolute;
    opacity: 0;
}

.service-option span {
    display: block;
    padding: 15px;
    border: 2px solid #d1d5db;
    border-radius: 12px;
    text-align: center;
    font-weight: 500;
    transition: all 0.3s ease;
    background: white;
}

.service-option:hover span {
    border-color: #9333ea;
    box-shadow: 0 4px 12px rgba(147, 51, 234, 0.2);
}

.service-option input[type="radio"]:checked + span {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    border-color: #667eea;
    transform: scale(1.05);
    box-shadow: 0 8px 25px rgba(102, 126, 234, 0.5);
}

/* 技能网格 */
.skills-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: 12px;
}

.skill-option {
    position: relative;
    cursor: pointer;
}

.skill-option input[type="checkbox"] {
    position: absolute;
    opacity: 0;
}

.skill-option span {
    display: block;
    padding: 12px;
    border: 2px solid #d1d5db;
    border-radius: 10px;
    text-align: center;
    font-size: 0.9rem;
    font-weight: 500;
    transition: all 0.3s ease;
    background: white;
}

.skill-option:hover span {
    border-color: #ec4899;
    box-shadow: 0 2px 8px rgba(236, 72, 153, 0.2);
}

.skill-option input[type="checkbox"]:checked + span {
    background: linear-gradient(135deg, #f093fb 0%, #f5576c 100%);
    color: white;
    border-color: #f093fb;
    box-shadow: 0 6px 18px rgba(240, 147, 251, 0.5);
}

/* 提交按钮 */
.submit-btn,
.browse-btn,
.book-btn {
    padding: 18px 40px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    border: none;
    border-radius: 50px;
    font-size: 1.2rem;
    font-weight: 700;
    cursor: pointer;
    transition: all 0.3s ease;
    box-shadow: 0 10px 30px rgba(102, 126, 234, 0.4);
    position: relative;
    overflow: hidden;
}

.submit-btn::before,
.browse-btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.3), transparent);
    transition: left 0.5s;
}

.submit-btn:hover::before,
.browse-btn:hover::before {
    left: 100%;
}

.submit-btn:hover,
.browse-btn:hover,
.book-btn:hover {
    transform: translateY(-3px);
    box-shadow: 0 15px 40px rgba(102, 126, 234, 0.6);
}

.submit-btn:active,
.browse-btn:active,
.book-btn:active {
    transform: translateY(0);
}

.submit-btn:disabled,
.browse-btn:disabled,
.book-btn:disabled {
    opacity: 0.6;
    cursor: not-allowed;
    transform: none;
}

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

@keyframes ripple-effect {
    to {
        transform: scale(4);
        opacity: 0;
    }
}

/* 加载状态 */
.submit-btn.loading::after {
    content: '';
    position: absolute;
    right: 20px;
    top: 50%;
    transform: translateY(-50%);
    width: 16px;
    height: 16px;
    border: 2px solid rgba(255, 255, 255, 0.3);
    border-top-color: white;
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}

@keyframes spin {
    to {
        transform: translateY(-50%) rotate(360deg);
    }
}

/* 消息关闭按钮 */
.message-close-btn {
    position: absolute;
    top: 10px;
    right: 10px;
    background: rgba(255, 255, 255, 0.3);
    border: none;
    color: white;
    width: 30px;
    height: 30px;
    border-radius: 50%;
    font-size: 24px;
    line-height: 1;
    cursor: pointer;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    justify-content: center;
}

.message-close-btn:hover {
    background: rgba(255, 255, 255, 0.5);
    transform: rotate(90deg);
}

/* 调试信息 */
.debug-info {
    background: linear-gradient(135deg, #fbbf24 0%, #f59e0b 100%);
    color: #78350f;
    padding: 15px 20px;
    border-radius: 12px;
    margin-bottom: 20px;
    box-shadow: 0 4px 12px rgba(251, 191, 36, 0.3);
    font-size: 0.9rem;
}

.debug-info h4 {
    margin-bottom: 10px;
    font-size: 1rem;
    color: #78350f;
}

.debug-info p {
    margin: 5px 0;
    line-height: 1.6;
}

/* 底部 */
.footer {
    text-align: center;
    margin-top: 30px;
    color: #6b7280;
    font-size: 0.95rem;
}

/* 响应式设计 */

/* 平板 (768px - 1024px) */
@media (max-width: 1024px) {
    .container {
        max-width: 100%;
    }
}

/* 手机横屏和小平板 (481px - 768px) */
@media (max-width: 768px) {
    .card {
        padding: 20px;
        border-radius: 15px;
    }
    
    .header h1 {
        font-size: 1.8rem;
    }
    
    .subtitle {
        font-size: 1rem;
    }
    
    .service-grid {
        grid-template-columns: 1fr 1fr;
        gap: 10px;
    }
    
    .skills-grid {
        grid-template-columns: 1fr 1fr;
        gap: 10px;
    }
    
    .language-switcher {
        justify-content: center;
        gap: 8px;
    }
    
    .lang-btn {
        padding: 8px 16px;
        font-size: 0.9rem;
    }
    
    .form-group label {
        font-size: 1rem;
    }
    
    .submit-btn,
    .browse-btn {
        font-size: 1.1rem;
        padding: 14px 28px;
    }
}

/* 手机竖屏 (320px - 480px) */
@media (max-width: 480px) {
    body {
        padding: 8px;
    }
    
    .card {
        padding: 15px;
        border-radius: 12px;
    }
    
    .header {
        margin-bottom: 25px;
    }
    
    .header h1 {
        font-size: 1.5rem;
        line-height: 1.3;
    }
    
    .subtitle {
        font-size: 0.9rem;
    }
    
    .service-grid,
    .skills-grid {
        grid-template-columns: 1fr;
        gap: 8px;
    }
    
    .service-option span,
    .skill-option span {
        padding: 12px;
        font-size: 0.9rem;
    }
    
    .language-switcher {
        gap: 6px;
        flex-wrap: wrap;
    }
    
    .lang-btn {
        padding: 6px 12px;
        font-size: 0.85rem;
    }
    
    .submit-btn,
    .browse-btn {
        font-size: 1rem;
        padding: 12px 24px;
    }
    
    .divider {
        margin: 20px 0 15px;
    }
    
    .footer {
        font-size: 0.85rem;
        margin-top: 20px;
    }
}

/* 超小屏幕 (< 360px) */
@media (max-width: 360px) {
    .header h1 {
        font-size: 1.3rem;
    }
    
    .lang-btn {
        padding: 5px 10px;
        font-size: 0.8rem;
    }
    
    .service-option span,
    .skill-option span {
        padding: 10px;
        font-size: 0.85rem;
    }
}

/* 触摸设备优化 */
@media (hover: none) and (pointer: coarse) {
    .service-option,
    .skill-option,
    .lang-btn,
    .submit-btn,
    .browse-btn {
        min-height: 44px; /* iOS 推荐的最小触摸目标 */
    }
    
    .service-option:active,
    .skill-option:active {
        transform: scale(0.98);
    }
}

/* 分隔线 */
.divider {
    text-align: center;
    margin: 30px 0 20px;
    position: relative;
}

.divider::before,
.divider::after {
    content: '';
    position: absolute;
    top: 50%;
    width: 40%;
    height: 1px;
    background: linear-gradient(to right, transparent, #d1d5db, transparent);
}

.divider::before {
    left: 0;
}

.divider::after {
    right: 0;
}

.divider span {
    background: white;
    padding: 0 15px;
    color: #9ca3af;
    font-size: 0.9rem;
}

/* 浏览陪玩按钮 */
.browse-btn {
    display: block;
    width: 100%;
    padding: 18px 40px;
    background: rgba(255, 255, 255, 0.9);
    color: #667eea;
    border: 2px solid rgba(102, 126, 234, 0.3);
    border-radius: 50px;
    font-size: 1.2rem;
    font-weight: 700;
    text-align: center;
    text-decoration: none;
    transition: all 0.3s ease;
    box-shadow: 0 6px 20px rgba(0, 0, 0, 0.1);
    backdrop-filter: blur(10px);
}

.browse-btn:hover {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    transform: translateY(-3px);
    box-shadow: 0 10px 30px rgba(102, 126, 234, 0.4);
    border-color: transparent;
}

/* 移动端滚动优化 */
.container {
    -webkit-overflow-scrolling: touch;
}

/* 防止文本选择（移动端） */
.lang-btn,
.submit-btn,
.browse-btn,
.service-option,
.skill-option {
    -webkit-user-select: none;
    -moz-user-select: none;
    -ms-user-select: none;
    user-select: none;
}

/* 输入框移动端优化 */
input,
select,
textarea {
    -webkit-appearance: none;
    -moz-appearance: none;
    appearance: none;
    border-radius: 8px;
}

input:focus,
select:focus,
textarea:focus {
    outline: none;
}

/* 按钮点击反馈 */
button,
.lang-btn,
.submit-btn,
.browse-btn {
    cursor: pointer;
    -webkit-tap-highlight-color: rgba(0, 0, 0, 0.1);
}

button:active,
.lang-btn:active,
.submit-btn:active,
.browse-btn:active {
    opacity: 0.8;
}

/* 禁用双击缩放 */
button,
a,
input,
select {
    touch-action: manipulation;
}

/* 安全区域适配（iPhone X 等刘海屏） */
@supports (padding: max(0px)) {
    body {
        padding-left: max(20px, env(safe-area-inset-left));
        padding-right: max(20px, env(safe-area-inset-right));
        padding-bottom: max(20px, env(safe-area-inset-bottom));
    }
    
    @media (max-width: 768px) {
        body {
            padding-left: max(10px, env(safe-area-inset-left));
            padding-right: max(10px, env(safe-area-inset-right));
            padding-bottom: max(10px, env(safe-area-inset-bottom));
        }
    }
}

/* 加载动画优化 */
@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}

/* 深色模式支持（可选） */
@media (prefers-color-scheme: dark) {
    /* 如果需要深色模式，可以在这里添加样式 */
}

/* 高对比度模式 */
@media (prefers-contrast: high) {
    .card,
    .companion-card {
        border: 2px solid #333;
    }
}

/* 打印样式 */
@media print {
    body {
        background: white;
        padding: 0;
    }
    
    .language-switcher,
    .submit-btn,
    .browse-btn {
        display: none;
    }
}

/* 现代化动画效果 */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes pulse {
    0%, 100% {
        transform: scale(1);
    }
    50% {
        transform: scale(1.05);
    }
}

.card {
    animation: fadeInUp 0.6s ease-out;
}

.header h1 {
    animation: fadeInUp 0.8s ease-out;
}

.subtitle {
    animation: fadeInUp 1s ease-out;
}

/* 渐变背景动画 */
body::before {
    content: '';
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(45deg, rgba(102, 126, 234, 0.1), rgba(118, 75, 162, 0.1), rgba(240, 147, 251, 0.1));
    animation: gradientShift 15s ease infinite;
    z-index: -1;
}

@keyframes gradientShift {
    0%, 100% {
        opacity: 0.5;
    }
    50% {
        opacity: 0.8;
    }
}

/* 按钮光泽效果 */
.submit-btn,
.browse-btn {
    position: relative;
    overflow: hidden;
}

.submit-btn::after,
.browse-btn::after {
    content: '';
    position: absolute;
    top: -50%;
    right: -50%;
    bottom: -50%;
    left: -50%;
    background: linear-gradient(to bottom, rgba(255,255,255,0), rgba(255,255,255,0.3) 50%, rgba(255,255,255,0));
    transform: rotateZ(60deg) translate(-5em, 7.5em);
}

.submit-btn:hover::after,
.browse-btn:hover::after {
    animation: sheen 1s forwards;
}

@keyframes sheen {
    100% {
        transform: rotateZ(60deg) translate(1em, -9em);
    }
}

/* 卡片入场动画 */
.service-option,
.skill-option {
    animation: fadeInUp 0.5s ease-out backwards;
}

.service-option:nth-child(1) { animation-delay: 0.1s; }
.service-option:nth-child(2) { animation-delay: 0.2s; }
.service-option:nth-child(3) { animation-delay: 0.3s; }
.service-option:nth-child(4) { animation-delay: 0.4s; }

/* 玻璃态效果增强 */
.card,
.lang-btn {
    backdrop-filter: blur(20px) saturate(180%);
    -webkit-backdrop-filter: blur(20px) saturate(180%);
}