/* ========================================
   📱 MOBILE OPTIMIZATION - 手机端优化
   ======================================== */

/* 超小屏幕设备优化 (iPhone SE, 小屏手机) */
@media (max-width: 480px) {
    :root {
        --scroll-offset: 120px;
    }

    /* 全局调整 */
    body {
        font-size: 14px;
        line-height: 1.5;
    }

    /* 头部区域紧凑化 */
    .header {
        padding: 8px 15px;
        flex-direction: column;
        gap: 8px;
        position: relative;
    }

    .logo-container {
        width: 100%;
        justify-content: center;
    }

    .logo img {
        height: 36px;
        margin-right: 8px;
    }

    .logo-text {
        font-size: 20px;
        margin-right: 6px;
    }

    .logo-subtitle {
        font-size: 12px;
    }

    .user-info {
        width: 100%;
        flex-direction: column;
        gap: 8px;
        align-items: stretch;
    }

    .points-display {
        justify-content: center;
        padding: 6px 12px;
        font-size: 13px;
    }

    /* 移动端积分和邀请按钮样式 - 保持统一高度 */
    .nav-points {
        height: 32px;
        padding: 0 12px;
        font-size: 13px;
        border-radius: 14px;
    }

    .btn-invite {
        height: 32px !important;
        padding: 0 12px !important;
        font-size: 13px !important;
        margin-left: 8px !important;
        border-radius: 14px !important;
    }

    .btn-invite i {
        margin-right: 4px !important;
        font-size: 13px !important;
    }

    .header-buttons {
        grid-template-columns: 1fr 1fr;
        gap: 8px;
    }

    .header-buttons .btn {
        height: 32px;
        padding: 0 10px;
        font-size: 12px;
        text-align: center;
        border-radius: 14px;
    }

    /* 通知栏优化 */
    .notification-bar {
        padding: 8px 15px;
        font-size: 12px;
        flex-direction: column;
        text-align: center;
        gap: 5px;
        position: sticky;
        top: 100px;
        /* 超小屏幕的header高度调整 */
        z-index: 99;
    }

    .scrolling-notification-bar .notification-content {
        padding: 8px 10px;
        flex-direction: column;
        text-align: center;
        gap: 8px;
    }

    .scrolling-notification-bar .notification-controls {
        flex-direction: row;
        margin-right: 0;
        margin-bottom: 5px;
    }

    .scrolling-notification-bar .notification-text {
        font-size: 12px;
        text-align: center;
    }

    .scrolling-notification-bar .notification-indicator {
        position: static;
        transform: none;
        margin-top: 5px;
        text-align: center;
    }

    .scrolling-notification-bar .keyboard-hint {
        display: none;
        /* 移动端隐藏键盘提示 */
    }

    /* 主内容区域 */
    .main-content {
        padding: 0 8px;
        margin-top: 10px;
    }

    /* 功能卡片优化 */
    .features-container {
        display: flex;
        flex-wrap: nowrap;
        gap: 8px;
        margin-bottom: 15px;
        padding: 0 10px 4px;
        overflow-x: auto;
        scroll-snap-type: x mandatory;
        scroll-padding-left: 10px;
        scroll-padding-right: 20px;
        -webkit-overflow-scrolling: touch;
        scrollbar-width: none;
    }

    .features-container::-webkit-scrollbar {
        display: none;
    }

    .feature-card {
        padding: 12px 10px;
        margin: 0;
        min-height: 100px;
        min-width: 180px;
        flex: 0 0 auto;
        scroll-snap-align: start;
        scroll-snap-stop: always;
    }

    .feature-icon {
        font-size: 24px;
        margin-bottom: 6px;
    }

    .feature-title {
        font-size: 14px;
        margin-bottom: 4px;
    }

    .feature-desc {
        font-size: 11px;
        line-height: 1.4;
        margin-bottom: 6px;
    }

    .feature-price {
        font-size: 12px;
    }



    /* 文本处理区域优化 */
    .text-processing-area {
        padding: 15px 12px;
        gap: 15px;
        margin-bottom: 28px;
    }

    .doc-processing-area {
        padding: 15px 12px;
        gap: 15px;
        margin-bottom: 15px;
    }

    .section-title {
        font-size: 16px;
        margin-bottom: 10px;
    }

    .section-title i {
        font-size: 16px;
    }

    /* 输入框优化 */
    #input-text {
        height: 180px;
        font-size: 14px;
        padding: 10px;
        line-height: 1.4;
    }

    .text-count {
        margin-top: 8px;
        flex-direction: column;
        align-items: flex-start;
        gap: 5px;
    }

    .character-count,
    #estimated-points {
        font-size: 12px;
    }

    /* 输出区域优化 */
    .output-container {
        height: 180px;
        font-size: 14px;
        padding: 10px;
        line-height: 1.4;
    }

    .output-stats {
        margin-top: 8px;
        flex-direction: column;
        align-items: flex-start;
        gap: 5px;
    }

    .output-character-count,
    #consumed-points {
        font-size: 12px;
    }

    .privacy-note {
        font-size: 11px;
        padding: 6px 8px;
        margin-top: 8px;
    }

    /* 按钮优化 */
    .btn {
        padding: 10px 15px;
        font-size: 13px;
        height: 44px;
        /* iOS推荐的最小触摸目标 */
        box-sizing: border-box;
        line-height: 1;
    }

    .btn-large {
        padding: 12px 20px;
        font-size: 15px;
        min-height: 48px;
    }

    .btn i {
        margin-right: 6px;
        font-size: 14px;
    }

    .processing-buttons {
        margin-bottom: 15px;
    }

    #start-processing {
        width: auto;
        padding: clamp(8px, 2.8vw, 11px) clamp(10px, 4vw, 14px);
        font-size: clamp(11px, 3.2vw, 13px);
        font-weight: 600;
        height: clamp(38px, 11vw, 44px);
        box-sizing: border-box;
        line-height: 1.1;
    }

    .processing-tip {
        font-size: 11px;
        text-align: center;
        margin-top: 8px;
        padding: 8px;
    }

    .input-actions,
    .output-buttons {
        margin-top: auto;
        padding-top: 10px;
        flex-direction: row;
        flex-wrap: nowrap;
        gap: 8px;
        align-items: stretch;
        justify-content: space-between;
    }

    .input-actions .button-group,
    .output-buttons .button-group {
        flex: 1 1 0;
        display: flex;
        gap: 6px;
        justify-content: center;
    }

    .output-buttons .export-group {
        order: 1;
    }

    .output-buttons .primary-group {
        order: 2;
    }

    .input-actions .btn,
    .output-buttons .btn {
        flex: 1 1 0;
        min-width: 0;
        padding: clamp(8px, 2.8vw, 11px) clamp(10px, 4vw, 14px);
        font-size: clamp(11px, 3.2vw, 13px);
        height: clamp(38px, 11vw, 44px);
        line-height: 1.1;
    }

    #clear-btn,
    #copy-btn {
        min-width: 0;
        padding: clamp(8px, 2.8vw, 11px) clamp(10px, 4vw, 14px);
    }

    /* 页脚样式已移至index.html内联样式中，包含完整的响应式设计 */

    /* 模态框优化 */
    .modal-content {
        width: 95%;
        max-width: none;
        margin: 10px auto;
        padding: 15px;
        border-radius: 10px;
    }

    .modal h2 {
        font-size: 18px;
        margin-bottom: 15px;
    }

    .close-modal {
        top: 10px;
        right: 10px;
        width: 30px;
        height: 30px;
        font-size: 16px;
    }

    /* 表单优化 */
    .form-group {
        margin-bottom: 15px;
    }

    .form-group label {
        font-size: 13px;
        margin-bottom: 6px;
    }

    .form-group input,
    .form-group select,
    .form-group textarea {
        padding: 10px;
        font-size: 14px;
        border-radius: 6px;
        min-height: 44px;
    }

    /* 标签页优化 */
    .tabs {
        margin-bottom: 15px;
    }

    .tab {
        padding: 8px 12px;
        font-size: 13px;
        min-height: 40px;
        flex: 1;
        text-align: center;
    }

    /* 通知优化 */
    .notification {
        bottom: 15px;
        right: 15px;
        left: 15px;
        max-width: none;
        padding: 12px 15px;
        font-size: 13px;
    }

    /* 充值选项优化 */
    .recharge-options {
        gap: 8px;
    }

    .recharge-option {
        padding: 12px 8px;
        flex-direction: column;
        text-align: center;
    }

    /* 卡密兑换优化 */
    .card-types {
        grid-template-columns: 1fr 1fr;
        gap: 8px;
        margin: 15px 0;
    }

    .card-type {
        padding: 8px 4px;
        font-size: 12px;
    }

    .card-type .type {
        font-size: 12px;
    }

    .card-type .value {
        font-size: 11px;
    }

    /* 支付相关优化 */
    .payment-packages {
        grid-template-columns: 1fr;
        gap: 10px;
    }

    .payment-package {
        padding: 12px;
    }

    .payment-methods {
        flex-direction: column;
        gap: 10px;
    }

    .payment-method {
        padding: 12px;
        width: 100%;
        justify-content: center;
    }

    .qrcode-container {
        padding: 15px;
    }

    #payment-qrcode {
        width: 200px !important;
        height: 200px !important;
    }



    /* 帮助内容优化 */
    .help-content {
        padding: 10px 0;
    }

    /* 移动端二维码优化 */
    .wechat-qr-container {
        margin: 20px 0 10px 0;
        padding: 20px;
    }

    .wechat-qr-image {
        width: 180px;
        height: 180px;
    }

    .wechat-contact-compact {
        padding: 10px 15px;
        margin: 8px 0;
        gap: 8px;
    }

    .wechat-contact-compact i {
        font-size: 20px;
    }

    .wechat-contact-compact .wechat-id {
        font-size: 14px;
    }

    .wechat-contact {
        padding: 12px;
        margin: 15px 0;
    }

    .wechat-id {
        font-size: 16px;
        margin-top: 8px;
    }

    .help-tip {
        font-size: 12px;
        margin-top: 8px;
    }

    /* 移动端联系方式弹窗优化 */
    .contact-qr-section .wechat-qr-container {
        margin: 15px auto;
        padding: 15px;
        max-width: 240px;
    }

    .contact-qr-section .wechat-qr-image {
        width: 160px;
        height: 160px;
    }

    .contact-qr-section .wechat-contact-compact {
        margin: 10px auto;
        max-width: 200px;
        padding: 8px 12px;
    }

    /* 用户中心优化 */
    .user-center-content {
        padding: 5px 0;
    }

    .info-item {
        padding: 10px 0;
        flex-direction: column;
        align-items: flex-start;
        gap: 5px;
    }

    .info-label {
        width: auto;
        font-size: 12px;
    }

    /* 登录相关优化 */
    .wechat-login-section {
        padding: 10px 5px;
    }

    .login-qrcode-container {
        min-width: 160px;
    }

    /* 移动端折叠按钮优化 */
    .traditional-login-toggle {
        padding: 10px 15px;
        font-size: 13px;
    }

    .traditional-login-form-wrapper.expanded {
        max-height: 350px;
        min-height: 160px;
    }

    .qr-loading {
        height: 160px;
    }

    .new-user-reward {
        font-size: 12px;
        padding: 8px 10px;
        margin-top: 15px;
    }

    /* 滚动条优化 */
    ::-webkit-scrollbar {
        width: 4px;
    }

    ::-webkit-scrollbar-thumb {
        border-radius: 2px;
    }
}

/* 极小屏幕优化 (小于 380px) */
@media (max-width: 380px) {
    .logo-text {
        font-size: 18px;
    }

    .logo-subtitle {
        font-size: 11px;
    }

    .feature-card {
        padding: 10px 8px;
    }

    .feature-title {
        font-size: 13px;
    }

    .feature-desc {
        font-size: 10px;
    }

    .text-processing-area {
        padding: 12px 8px;
    }

    .doc-processing-area {
        padding: 12px 8px;
    }

    #input-text,
    .output-container {
        height: 160px;
        font-size: 13px;
        padding: 8px;
    }

    .modal-content {
        padding: 12px;
        margin: 5px auto;
    }

    .btn {
        padding: 8px 12px;
        font-size: 12px;
    }

    .btn-large {
        padding: 10px 15px;
        font-size: 14px;
    }

    /* 小屏幕邀请按钮优化 */
    .btn-invite {
        height: 28px !important;
        padding: 0 10px !important;
        font-size: 12px !important;
        margin-left: 6px !important;
        border-radius: 12px !important;
    }

    /* 超小屏幕只显示图标 */
    @media (max-width: 400px) {
        .btn-invite {
            height: 28px !important;
            padding: 0 8px !important;
            min-width: auto !important;
            border-radius: 12px !important;
        }

        .btn-invite .btn-text {
            display: none;
        }

        .btn-invite i {
            margin-right: 0 !important;
        }
    }
}

/* 横屏模式优化 */
@media (max-width: 768px) and (orientation: landscape) {
    .header {
        padding: 6px 15px;
    }

    .text-processing-area {
        grid-template-columns: 1fr 1fr;
        gap: 15px;
    }

    .doc-processing-area {
        gap: 15px;
    }

    #input-text,
    .output-container {
        height: 120px;
    }

    .modal-content {
        max-height: 90vh;
        overflow-y: auto;
    }
}

/* 触摸设备优化 */
@media (pointer: coarse) {

    .btn,
    .tab,
    .platform-option,
    .language-option,
    .feature-card {
        min-height: 44px;
    }

    .close-modal {
        width: 44px;
        height: 44px;
        font-size: 18px;
    }

    /* 增加点击区域 */
    .header-buttons .btn {
        height: 36px;
        padding: 0 12px;
        border-radius: 16px;
    }

    .auth-buttons .btn {
        height: 36px;
        padding: 0 12px;
        border-radius: 16px;
    }
}

/* 减少动画以提升性能 */
@media (max-width: 480px) {
    * {
        animation-duration: 0.2s !important;
        transition-duration: 0.2s !important;
    }

    .btn:hover {
        transform: none;
    }

    .feature-card:hover {
        transform: none;
    }
}

/* 确保在移动端的可访问性 */
@media (max-width: 768px) {

    /* 增强对比度 */
    .btn-primary {
        background: linear-gradient(135deg, #2c5aa0 0%, #5a4fb5 100%);
    }

    /* 确保文字清晰 */
    body {
        -webkit-font-smoothing: antialiased;
        -moz-osx-font-smoothing: grayscale;
    }

    /* 优化输入框在iOS上的表现 */
    input,
    textarea,
    select {
        appearance: none;
        -webkit-appearance: none;
        border-radius: 6px;
    }

    /* 防止iOS缩放 */
    input,
    textarea,
    select {
        font-size: 16px !important;
    }
}

@media (max-width: 480px) {
    .postflow-section {
        padding: 18px 14px;
        margin: 36px 0 24px;
    }

    .section-heading {
        font-size: 20px;
    }

    .section-desc {
        font-size: 13px;
    }

    .faq-item summary {
        font-size: 14px;
    }
}