/* WorldInput全球输入法 - 主样式文件 */

/* CSS自定义属性 */
:root {
    /* 颜色体系 */
    --primary-color: #00e0ff;
    --secondary-color: #ff4d94;
    --accent-color: #ffdd59;
    --text-primary: #ffffff;
    --text-secondary: #b0b0b0;
    --bg-primary: #0a0a0f;
    --bg-secondary: #1a1a2e;
    --bg-card: rgba(255, 255, 255, 0.05);
    --border-color: rgba(255, 255, 255, 0.1);
    
    /* 粒子颜色 */
    --primary-particle: #00e0ff;
    --secondary-particle: #ff4d94;
    --core-particle: #ffffff;
    --hover-particle: #ffdd59;
    
    /* 字体 */
    --font-family: 'Segoe UI', system-ui, -apple-system, sans-serif;
    --font-size-xs: 0.75rem;
    --font-size-sm: 0.875rem;
    --font-size-base: 1rem;
    --font-size-lg: 1.125rem;
    --font-size-xl: 1.25rem;
    --font-size-2xl: 1.5rem;
    --font-size-3xl: 1.875rem;
    --font-size-4xl: 2.25rem;
    
    /* 间距 */
    --spacing-xs: 0.25rem;
    --spacing-sm: 0.5rem;
    --spacing-md: 1rem;
    --spacing-lg: 1.5rem;
    --spacing-xl: 2rem;
    --spacing-2xl: 3rem;
    
    /* 圆角 */
    --border-radius-sm: 0.375rem;
    --border-radius-md: 0.5rem;
    --border-radius-lg: 0.75rem;
    --border-radius-xl: 1rem;
    
    /* 阴影 */
    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px rgba(0, 0, 0, 0.1);
    --shadow-glow: 0 0 20px rgba(0, 224, 255, 0.3);
}

/* 基础重置 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-family);
    font-size: var(--font-size-base);
    line-height: 1.6;
    color: var(--text-primary);
    background: var(--bg-primary);
    overflow-x: hidden;
}

/* 容器 */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-xl);
    position: relative;
    z-index: 10;
}

/* 头部导航 */
.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: rgba(10, 10, 15, 0.9);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--border-color);
    z-index: 1000;
}

.nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--spacing-md) var(--spacing-lg);
}

.logo h1 {
    font-size: var(--font-size-xl);
    font-weight: 700;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.logo-subtitle {
    font-size: var(--font-size-sm);
    color: var(--text-secondary);
    margin-left: var(--spacing-sm);
}

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

.nav-link {
    color: var(--text-primary);
    text-decoration: none;
    font-weight: 500;
    transition: color 0.3s ease;
    position: relative;
}

.nav-link:hover {
    color: var(--primary-color);
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--primary-color);
    transition: width 0.3s ease;
}

.nav-link:hover::after {
    width: 100%;
}

.nav-toggle {
    display: none;
    flex-direction: column;
    background: none;
    border: none;
    cursor: pointer;
    padding: var(--spacing-sm);
}

.nav-toggle span {
    width: 25px;
    height: 3px;
    background: var(--text-primary);
    margin: 3px 0;
    transition: 0.3s;
}

/* 主内容区域 */
.main-content {
    margin-top: 80px;
}

/* 英雄区域 */
.hero {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-2xl);
    align-items: center;
    min-height: 80vh;
    padding: var(--spacing-2xl) 0;
}

.hero-title {
    margin-bottom: var(--spacing-lg);
}

.title-main {
    display: block;
    font-size: var(--font-size-4xl);
    font-weight: 700;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: var(--spacing-sm);
}

.title-sub {
    display: block;
    font-size: var(--font-size-2xl);
    color: var(--text-secondary);
}

.hero-description {
    font-size: var(--font-size-lg);
    color: var(--text-secondary);
    margin-bottom: var(--spacing-xl);
    line-height: 1.8;
}

.hero-actions {
    display: flex;
    gap: var(--spacing-md);
}

/* 按钮样式 */
.btn {
    padding: var(--spacing-md) var(--spacing-xl);
    border: none;
    border-radius: var(--border-radius-lg);
    font-size: var(--font-size-base);
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    text-decoration: none;
    display: inline-block;
    text-align: center;
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: white;
    box-shadow: var(--shadow-glow);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 0 30px rgba(0, 224, 255, 0.5);
}

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

.btn-secondary:hover {
    border-color: var(--primary-color);
    color: var(--primary-color);
}

/* 演示区域 - 多功能轮播 */
.hero-visual {
    display: flex;
    justify-content: center;
    align-items: center;
}

.multi-function-demo {
    width: 320px;
    height: 440px;
    background: var(--bg-secondary);
    border-radius: var(--border-radius-xl);
    border: 1px solid var(--border-color);
    overflow: hidden;
    position: relative;
    box-shadow: 0 20px 40px rgba(0, 224, 255, 0.1);
}

.demo-carousel {
    width: 100%;
    height: 100%;
    position: relative;
}

.demo-slide {
    width: 100%;
    height: 100%;
    position: absolute;
    top: 0;
    left: 0;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: var(--spacing-xl) var(--spacing-xl) 50px var(--spacing-xl);
    opacity: 0;
    transform: translateX(50px);
    transition: all 0.5s cubic-bezier(0.4, 0, 0.2, 1);
}

.demo-slide.active {
    opacity: 1;
    transform: translateX(0);
}

.demo-slide .demo-icon {
    font-size: 4rem;
    margin-bottom: var(--spacing-md);
    animation: iconFloat 3s ease-in-out infinite;
}

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

.demo-slide h4 {
    font-size: var(--font-size-xl);
    color: var(--text-primary);
    margin-bottom: var(--spacing-sm);
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.demo-slide p {
    color: var(--text-secondary);
    text-align: center;
    margin-bottom: var(--spacing-lg);
}

/* 联系人表单 */
.demo-contact-form {
    width: 100%;
    background: var(--bg-primary);
    border-radius: var(--border-radius-md);
    padding: 20px;
    border: 2px solid var(--border-color);
}

.form-field {
    display: flex;
    align-items: flex-start;
    gap: 10px;
    padding: 10px 0;
    border-bottom: 1px solid var(--border-color);
    animation: fieldPop 0.5s ease-out forwards;
    opacity: 0;
    flex-wrap: wrap;
}

.form-field:nth-child(1) {
    animation-delay: 0.2s;
}

.form-field:nth-child(2) {
    animation-delay: 0.4s;
}

.form-field:nth-child(3) {
    animation-delay: 0.6s;
    border-bottom: none;
}

@keyframes fieldPop {
    0% {
        opacity: 0;
        transform: translateX(-20px);
    }
    100% {
        opacity: 1;
        transform: translateX(0);
    }
}

.field-label {
    color: var(--text-secondary);
    font-weight: 600;
    min-width: 60px;
    flex-shrink: 0;
    padding-top: 4px;
}

.field-value {
    color: var(--primary-color);
    font-weight: 700;
    background: rgba(0, 224, 255, 0.1);
    padding: 4px 12px;
    border-radius: 20px;
    animation: pulse 2s ease-in-out infinite;
    word-break: break-all;
    overflow-wrap: break-word;
    max-width: 100%;
    flex: 1;
    min-width: 0;
}

@keyframes pulse {
    0%, 100% {
        box-shadow: 0 0 0 0 rgba(0, 224, 255, 0.4);
    }
    50% {
        box-shadow: 0 0 0 8px rgba(0, 224, 255, 0);
    }
}

/* 智能翻译 */
.demo-translate {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 15px;
    width: 100%;
}

.translate-source,
.translate-target {
    flex: 1;
    background: var(--bg-primary);
    border-radius: var(--border-radius-md);
    padding: 20px;
    border: 2px solid var(--border-color);
    text-align: center;
}

.translate-source {
    animation: slideInLeft 0.6s ease-out;
}

.translate-target {
    animation: slideInRight 0.6s ease-out;
}

@keyframes slideInLeft {
    0% {
        opacity: 0;
        transform: translateX(-30px);
    }
    100% {
        opacity: 1;
        transform: translateX(0);
    }
}

@keyframes slideInRight {
    0% {
        opacity: 0;
        transform: translateX(30px);
    }
    100% {
        opacity: 1;
        transform: translateX(0);
    }
}

.lang-tag {
    display: inline-block;
    background: var(--primary-color);
    color: white;
    padding: 4px 12px;
    border-radius: 20px;
    font-size: 0.75rem;
    font-weight: 600;
    margin-bottom: 10px;
}

.translate-source .text,
.translate-target .text {
    display: block;
    color: var(--text-primary);
    font-size: 1.1rem;
    font-weight: 600;
}

.translate-arrow {
    font-size: 1.5rem;
    color: var(--primary-color);
    animation: bounce 1s ease-in-out infinite;
}

@keyframes bounce {
    0%, 100% {
        transform: translateX(0);
    }
    50% {
        transform: translateX(5px);
    }
}

/* 多语言气泡 */
.demo-languages {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 10px;
    width: 100%;
}

.lang-bubble {
    background: var(--bg-primary);
    border: 2px solid var(--border-color);
    color: var(--text-primary);
    padding: 8px 16px;
    border-radius: 25px;
    font-weight: 600;
    font-size: 0.9rem;
    animation: floatBubble 3s ease-in-out infinite;
    transition: all 0.3s ease;
}

.lang-bubble:nth-child(1) {
    animation-delay: 0s;
}

.lang-bubble:nth-child(2) {
    animation-delay: 0.3s;
}

.lang-bubble:nth-child(3) {
    animation-delay: 0.6s;
}

.lang-bubble:nth-child(4) {
    animation-delay: 0.9s;
}

.lang-bubble:nth-child(5) {
    animation-delay: 1.2s;
}

.lang-bubble:nth-child(6) {
    animation-delay: 1.5s;
}

@keyframes floatBubble {
    0%, 100% {
        transform: translateY(0);
        border-color: var(--border-color);
    }
    50% {
        transform: translateY(-10px);
        border-color: var(--primary-color);
        box-shadow: 0 5px 20px rgba(0, 224, 255, 0.3);
    }
}

/* 轮播控制 */
.demo-controls {
    position: absolute;
    bottom: 20px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    gap: 10px;
    z-index: 5;
}

.demo-dot {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background: var(--border-color);
    border: none;
    cursor: pointer;
    transition: all 0.3s ease;
}

.demo-dot.active {
    background: var(--primary-color);
    width: 30px;
    border-radius: 5px;
    box-shadow: 0 0 10px var(--primary-color);
}

.demo-dot:hover {
    transform: scale(1.2);
}

/* 功能标签 */
.demo-ribbon {
    position: absolute;
    top: -5px;
    right: -5px;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: white;
    padding: 8px 20px;
    font-size: var(--font-size-xs);
    font-weight: 600;
    transform: rotate(45deg);
    transform-origin: bottom left;
    box-shadow: 0 4px 10px rgba(0, 224, 255, 0.3);
    z-index: 20;
}

.demo-ribbon::before {
    content: '';
    position: absolute;
    top: 0;
    left: -10px;
    border-top: 10px solid transparent;
    border-right: 10px solid var(--primary-color);
}

.demo-ribbon::after {
    content: '';
    position: absolute;
    top: 0;
    right: -10px;
    border-top: 10px solid transparent;
    border-left: 10px solid var(--secondary-color);
}

/* 功能区域 */
.features {
    padding: var(--spacing-2xl) 0;
}

.section-header {
    text-align: center;
    margin-bottom: var(--spacing-2xl);
}

.section-header h3 {
    font-size: var(--font-size-3xl);
    margin-bottom: var(--spacing-md);
    color: var(--text-primary);
}

.section-header p {
    font-size: var(--font-size-lg);
    color: var(--text-secondary);
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-xl);
}

.feature-card {
    background: var(--bg-card);
    padding: var(--spacing-xl);
    border-radius: var(--border-radius-lg);
    border: 1px solid var(--border-color);
    text-align: center;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.feature-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
}

.feature-icon {
    font-size: 3rem;
    margin-bottom: var(--spacing-md);
}

.feature-card h4 {
    font-size: var(--font-size-xl);
    margin-bottom: var(--spacing-md);
    color: var(--text-primary);
}

.feature-card p {
    color: var(--text-secondary);
    line-height: 1.6;
}

/* 输入方式区域 */
.input-methods {
    padding: var(--spacing-2xl) 0;
}

.input-methods-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--spacing-xl);
}

.input-method {
    background: var(--bg-card);
    padding: var(--spacing-xl);
    border-radius: var(--border-radius-lg);
    border: 1px solid var(--border-color);
    text-align: center;
    transition: transform 0.3s ease;
}

.input-method:hover {
    transform: translateY(-3px);
}

.method-icon {
    font-size: 2.5rem;
    margin-bottom: var(--spacing-md);
}

.input-method h4 {
    font-size: var(--font-size-lg);
    margin-bottom: var(--spacing-md);
    color: var(--text-primary);
}

.input-method p {
    color: var(--text-secondary);
    margin-bottom: var(--spacing-lg);
    line-height: 1.6;
}

.method-btn {
    background: transparent;
    color: var(--primary-color);
    border: 1px solid var(--primary-color);
    padding: var(--spacing-sm) var(--spacing-lg);
    border-radius: var(--border-radius-md);
    cursor: pointer;
    transition: all 0.3s ease;
}

.method-btn:hover {
    background: var(--primary-color);
    color: white;
}

/* 联系区域 */
.contact {
    padding: var(--spacing-2xl) 0;
}

.contact-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-2xl);
    align-items: start;
}

.contact-info {
    background: var(--bg-card);
    padding: var(--spacing-xl);
    border-radius: var(--border-radius-lg);
    border: 1px solid var(--border-color);
}

.contact-info h4 {
    font-size: var(--font-size-xl);
    margin-bottom: var(--spacing-lg);
    color: var(--primary-color);
}

.contact-info p {
    margin-bottom: var(--spacing-md);
    color: var(--text-secondary);
}

.contact-info a {
    color: var(--primary-color);
    text-decoration: none;
}

.contact-info a:hover {
    text-decoration: underline;
}

.contact-form {
    background: var(--bg-card);
    padding: var(--spacing-xl);
    border-radius: var(--border-radius-lg);
    border: 1px solid var(--border-color);
}

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

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

.form-group input,
.form-group textarea {
    width: 100%;
    padding: var(--spacing-md);
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-md);
    color: var(--text-primary);
    font-size: var(--font-size-base);
    transition: border-color 0.3s ease;
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary-color);
}

/* 页脚 */
.footer {
    background: var(--bg-secondary);
    padding: var(--spacing-2xl) var(--spacing-xl) var(--spacing-xl);
    margin-top: var(--spacing-2xl);
    border-top: 1px solid var(--border-color);
}

.footer-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--spacing-xl);
}

.footer-logo h3 {
    color: var(--primary-color);
    margin-bottom: var(--spacing-sm);
}

.footer-links {
    display: flex;
    gap: var(--spacing-xl);
}

.footer-links a {
    color: var(--text-secondary);
    text-decoration: none;
    transition: color 0.3s ease;
}

.footer-links a:hover {
    color: var(--primary-color);
}

.footer-bottom {
    text-align: center;
    color: var(--text-secondary);
    font-size: var(--font-size-sm);
}

/* 响应式设计 */
@media (max-width: 768px) {
    .container {
        padding: 0 var(--spacing-sm);
    }
    
    .nav-menu {
        display: none;
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background: var(--bg-primary);
        flex-direction: column;
        padding: var(--spacing-lg);
        border-top: 1px solid var(--border-color);
    }
    
    .nav-menu.active {
        display: flex;
    }
    
    .nav-toggle {
        display: flex;
    }
    
    .hero {
        grid-template-columns: 1fr;
        text-align: center;
        gap: var(--spacing-xl);
    }
    
    .hero-actions {
        justify-content: center;
        flex-wrap: wrap;
    }
    
    .contact-content {
        grid-template-columns: 1fr;
        gap: var(--spacing-xl);
    }
    
    .footer-content {
        flex-direction: column;
        gap: var(--spacing-lg);
        text-align: center;
    }
    
    .footer-links {
        justify-content: center;
    }
}

/* 减少动画支持 */
@media (prefers-reduced-motion: reduce) {
    * {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}