/* ========================================
   额外响应式样式
   针对 login.html, index.html, translate.html
======================================== */

/* ========================================
   登录页面响应式 (login.html)
======================================== */

/* 平板 (768px - 1023px) */
@media (min-width: 768px) and (max-width: 1023px) {
    /* 登录框缩小 */
    .login-box,
    .login-container,
    [class*="login"],
    [class*="form-container"] {
        max-width: 500px !important;
        padding: 30px !important;
    }

    /* 标题字体缩小 */
    h1, h2, .title {
        font-size: 28px !important;
    }

    /* 输入框调整 */
    input[type="text"],
    input[type="password"],
    input[type="email"] {
        font-size: 14px !important;
        padding: 12px !important;
    }

    /* 按钮调整 */
    button,
    .btn,
    [class*="button"] {
        font-size: 14px !important;
        padding: 12px 24px !important;
    }
}

/* 手机 (最大 767px) */
@media (max-width: 767px) {
    /* 星空画布调整 */
    #space-canvas,
    canvas {
        width: 100% !important;
        height: 100% !important;
    }

    /* 登录框全宽显示 */
    .login-box,
    .login-container,
    [class*="login"],
    [class*="form-container"] {
        width: 95% !important;
        max-width: 100% !important;
        padding: 20px !important;
        margin: 10px auto !important;
    }

    /* 标题缩小 */
    h1, h2, .title {
        font-size: 24px !important;
        line-height: 1.3 !important;
    }

    /* Logo 缩小 */
    .logo,
    .logo-icon,
    [class*="logo"] {
        width: 60px !important;
        height: 60px !important;
        font-size: 36px !important;
    }

    /* 输入框全宽 */
    input[type="text"],
    input[type="password"],
    input[type="email"] {
        width: 100% !important;
        font-size: 16px !important;
        padding: 14px !important;
        margin-bottom: 15px !important;
    }

    /* 按钮全宽 */
    button,
    .btn,
    [class*="button"] {
        width: 100% !important;
        font-size: 16px !important;
        padding: 14px !important;
        margin-top: 10px !important;
    }

    /* 文字说明缩小 */
    p, span, .hint, .description {
        font-size: 14px !important;
    }
}

/* ========================================
   AI 问答页面响应式 (index.html)
======================================== */

/* 笔记本 (1024px - 1439px) */
@media (min-width: 1024px) and (max-width: 1439px) {
    .main-container {
        max-width: 95% !important;
        padding: 20px !important;
    }

    .header-title {
        padding: 15px 20px !important;
    }

    .chat-container,
    .message-container {
        padding: 15px !important;
    }
}

/* 平板 (768px - 1023px) */
@media (min-width: 768px) and (max-width: 1023px) {
    body {
        font-size: 14px !important;
    }

    /* 流光背景调整 */
    .light-glow-1,
    .light-glow-2 {
        display: block !important;
        opacity: 0.5 !important;
    }

    /* 主容器 */
    .main-container {
        width: 100% !important;
        max-width: 100% !important;
        padding: 15px !important;
        margin: 0 !important;
    }

    /* 头部 */
    .header-title {
        flex-direction: column !important;
        padding: 15px !important;
        gap: 10px;
    }

    .logo-area {
        justify-content: center !important;
    }

    .nav-buttons,
    .header-actions {
        width: 100% !important;
        justify-content: center !important;
        flex-wrap: wrap;
        gap: 8px;
    }

    /* 聊天容器 */
    .chat-container,
    .message-container {
        height: calc(100vh - 200px) !important;
        padding: 15px !important;
    }

    /* 消息气泡 */
    .message,
    .chat-message {
        max-width: 90% !important;
        font-size: 14px !important;
    }

    /* 输入区域 */
    .input-area,
    .chat-input {
        padding: 12px !important;
    }

    textarea,
    input[type="text"] {
        font-size: 14px !important;
        padding: 10px !important;
    }

    /* 发送按钮 */
    .send-btn,
    button[type="submit"] {
        padding: 10px 20px !important;
        font-size: 14px !important;
    }
}

/* 手机 (最大 767px) */
@media (max-width: 767px) {
    body {
        font-size: 14px !important;
        overflow-x: hidden !important;
    }

    /* 隐藏装饰背景 */
    .light-glow-1,
    .light-glow-2 {
        display: none !important;
    }

    /* 主容器全屏 */
    .main-container {
        width: 100% !important;
        height: 100vh !important;
        padding: 10px !important;
        margin: 0 !important;
    }

    /* 头部紧凑显示 */
    .header-title {
        flex-direction: column !important;
        padding: 10px !important;
        gap: 8px;
    }

    .logo-area {
        justify-content: center !important;
    }

    .logo-icon {
        font-size: 32px !important;
        width: 50px !important;
        height: 50px !important;
    }

    .logo-text,
    .site-name {
        font-size: 18px !important;
    }

    /* 导航按钮 */
    .nav-buttons,
    .header-actions {
        width: 100% !important;
        flex-direction: column !important;
        gap: 8px;
    }

    .nav-buttons button,
    .header-actions button {
        width: 100% !important;
        padding: 12px !important;
        font-size: 14px !important;
    }

    /* 聊天容器 */
    .chat-container,
    .message-container {
        height: calc(100vh - 180px) !important;
        padding: 10px !important;
        overflow-y: auto !important;
    }

    /* 消息气泡 */
    .message,
    .chat-message {
        max-width: 85% !important;
        font-size: 14px !important;
        padding: 12px !important;
        margin-bottom: 12px !important;
    }

    .message.user,
    .chat-message.user {
        align-self: flex-end !important;
    }

    .message.bot,
    .chat-message.bot {
        align-self: flex-start !important;
    }

    /* 输入区域固定底部 */
    .input-area,
    .chat-input {
        position: fixed !important;
        bottom: 0 !important;
        left: 0 !important;
        right: 0 !important;
        width: 100% !important;
        padding: 10px !important;
        background: rgba(10, 22, 40, 0.98) !important;
        backdrop-filter: blur(10px) !important;
        z-index: 100 !important;
    }

    textarea,
    input[type="text"] {
        width: 100% !important;
        font-size: 16px !important;
        padding: 12px !important;
        min-height: 50px !important;
    }

    /* 发送按钮 */
    .send-btn,
    button[type="submit"] {
        width: 100% !important;
        padding: 14px !important;
        font-size: 16px !important;
        margin-top: 8px !important;
    }

    /* 卡片布局 */
    .card,
    .info-card {
        margin: 10px 0 !important;
        padding: 15px !important;
    }

    /* 表格横向滚动 */
    table {
        display: block !important;
        overflow-x: auto !important;
        white-space: nowrap !important;
    }
}

/* ========================================
   营销页面响应式 (translate.html)
======================================== */

/* 笔记本 (1024px - 1439px) */
@media (min-width: 1024px) and (max-width: 1439px) {
    /* 容器缩小 */
    .container,
    section {
        max-width: 95% !important;
        padding: 40px 20px !important;
    }

    /* 标题缩小 */
    h1 {
        font-size: 48px !important;
    }

    h2 {
        font-size: 36px !important;
    }

    h3 {
        font-size: 24px !important;
    }

    /* 网格调整 */
    .grid,
    [class*="grid"] {
        grid-template-columns: repeat(auto-fit, minmax(250px, 1fr)) !important;
    }
}

/* 平板 (768px - 1023px) */
@media (min-width: 768px) and (max-width: 1023px) {
    body {
        font-size: 15px !important;
    }

    /* 导航栏调整 */
    nav {
        padding: 15px 20px !important;
    }

    .nav-menu {
        flex-direction: column !important;
        gap: 10px;
    }

    /* Hero 区域 */
    .hero,
    .hero-section {
        padding: 60px 20px !important;
    }

    h1 {
        font-size: 42px !important;
        line-height: 1.2 !important;
    }

    h2 {
        font-size: 32px !important;
    }

    /* 内容区域 */
    section,
    .section {
        padding: 40px 20px !important;
    }

    /* 卡片网格 */
    .grid,
    .card-grid,
    [class*="grid"] {
        grid-template-columns: repeat(2, 1fr) !important;
        gap: 20px !important;
    }

    /* 特性卡片 */
    .feature-card,
    .service-card,
    .card {
        padding: 25px !important;
    }

    /* 数据统计 */
    .stats,
    .statistics {
        grid-template-columns: repeat(2, 1fr) !important;
    }

    /* 按钮 */
    .btn,
    button {
        padding: 12px 24px !important;
        font-size: 15px !important;
    }
}

/* 手机 (最大 767px) */
@media (max-width: 767px) {
    body {
        font-size: 14px !important;
    }

    /* 导航栏 */
    nav {
        padding: 12px 15px !important;
    }

    .nav-logo {
        font-size: 20px !important;
    }

    /* 汉堡菜单 */
    .nav-menu {
        position: fixed !important;
        top: 0 !important;
        left: -100% !important;
        width: 80% !important;
        height: 100vh !important;
        background: rgba(10, 22, 40, 0.98) !important;
        flex-direction: column !important;
        padding: 60px 20px 20px 20px !important;
        transition: left 0.3s ease !important;
        z-index: 1000 !important;
    }

    .nav-menu.active {
        left: 0 !important;
    }

    .nav-menu a {
        width: 100% !important;
        padding: 15px !important;
        text-align: left !important;
        border-bottom: 1px solid rgba(255, 255, 255, 0.1) !important;
    }

    /* Hero 区域 */
    .hero,
    .hero-section {
        padding: 40px 15px !important;
        min-height: auto !important;
    }

    h1 {
        font-size: 32px !important;
        line-height: 1.3 !important;
        margin-bottom: 15px !important;
    }

    h2 {
        font-size: 26px !important;
        line-height: 1.3 !important;
    }

    h3 {
        font-size: 20px !important;
    }

    .subtitle,
    .hero-subtitle {
        font-size: 16px !important;
        line-height: 1.5 !important;
    }

    /* 内容区域 */
    section,
    .section {
        padding: 30px 15px !important;
    }

    /* 单列布局 */
    .grid,
    .card-grid,
    .feature-grid,
    .service-grid,
    [class*="grid"] {
        grid-template-columns: 1fr !important;
        gap: 15px !important;
    }

    /* 卡片 */
    .feature-card,
    .service-card,
    .card {
        padding: 20px !important;
        margin-bottom: 15px !important;
    }

    /* 数据统计 */
    .stats,
    .statistics {
        grid-template-columns: 1fr !important;
        gap: 15px !important;
    }

    .stat-item {
        padding: 20px !important;
    }

    .stat-number {
        font-size: 36px !important;
    }

    /* 按钮 */
    .btn,
    button {
        width: 100% !important;
        padding: 14px !important;
        font-size: 16px !important;
        margin-bottom: 10px !important;
    }

    .btn-group {
        flex-direction: column !important;
        gap: 10px !important;
    }

    /* 图片适配 */
    img {
        max-width: 100% !important;
        height: auto !important;
    }

    /* 视频适配 */
    video,
    iframe {
        width: 100% !important;
        height: auto !important;
        aspect-ratio: 16/9;
    }

    /* Footer */
    footer {
        padding: 30px 15px !important;
    }

    .footer-grid {
        grid-template-columns: 1fr !important;
        gap: 20px !important;
    }

    /* 合作伙伴 Logo */
    .partners-grid,
    .clients-grid {
        grid-template-columns: repeat(2, 1fr) !important;
    }
}

/* 小手机 (最大 480px) */
@media (max-width: 480px) {
    body {
        font-size: 13px !important;
    }

    h1 {
        font-size: 28px !important;
    }

    h2 {
        font-size: 22px !important;
    }

    h3 {
        font-size: 18px !important;
    }

    .hero,
    .hero-section {
        padding: 30px 10px !important;
    }

    section,
    .section {
        padding: 25px 10px !important;
    }

    .card,
    .feature-card {
        padding: 15px !important;
    }

    .stat-number {
        font-size: 28px !important;
    }
}

/* ========================================
   通用移动端优化
======================================== */

@media (max-width: 767px) {
    /* 隐藏溢出 */
    body {
        overflow-x: hidden !important;
    }

    /* 禁用水平滚动 */
    * {
        max-width: 100vw !important;
    }

    /* 触摸优化 */
    a, button, input, select, textarea {
        -webkit-tap-highlight-color: rgba(0, 0, 0, 0.1);
        touch-action: manipulation;
    }

    /* 平滑滚动 */
    html {
        scroll-behavior: smooth;
    }

    /* 返回顶部按钮 */
    .back-to-top {
        bottom: 70px !important;
        right: 15px !important;
        width: 45px !important;
        height: 45px !important;
    }
}

/* ========================================
   横屏模式优化
======================================== */

@media (max-width: 767px) and (orientation: landscape) {
    /* 减小垂直内边距 */
    section,
    .section {
        padding: 20px 15px !important;
    }

    .hero,
    .hero-section {
        padding: 25px 15px !important;
    }

    /* 聊天容器调整 */
    .chat-container,
    .message-container {
        height: calc(100vh - 120px) !important;
    }
}

/* ========================================
   暗色模式支持
======================================== */

@media (prefers-color-scheme: dark) {
    /* 已有暗色主题的页面保持不变 */
}

/* ========================================
   高对比度模式
======================================== */

@media (prefers-contrast: high) {
    * {
        border-width: 2px !important;
    }

    button, .btn {
        border: 2px solid currentColor !important;
    }
}

/* ========================================
   减少动画（用户偏好设置）
======================================== */

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