/* ===== 响应式媒体查询 ===== */
/* 注意：只包含媒体查询，不覆盖全局样式 */

/* 平板端优化 */
@media (max-width: 1024px) {
    .grid-4 {
        grid-template-columns: repeat(3, 1fr);
    }

    /* 个人页面按钮平板适配 - 与桌面端保持一致 */
    .btn-edit-profile.btn-admin {
        box-shadow: none;
        background: rgba(243, 244, 246, 0.6);
        color: #6B7280;
        border: 1px solid rgba(192, 132, 252, 0.15);
    }
    
    .btn-edit-profile.btn-admin:hover {
        border-color: #C084FC;
        color: #C084FC;
        box-shadow: 0 4px 12px rgba(192, 132, 252, 0.15);
    }
}

/* 移动端顶部快捷入口 - 默认隐藏 */
.mobile-auth-bar {
    display: none;
}

/* 手机端优化 */
@media (max-width: 768px) {
    /* 移动端顶部快捷入口 */
    .mobile-auth-bar {
        display: flex;
        align-items: center;
        justify-content: center;
        gap: 8px;
        padding: 12px 16px;
        background: linear-gradient(135deg, rgba(255,107,107,0.08) 0%, rgba(78,205,196,0.08) 100%);
        border-bottom: 1px solid var(--border-light);
        font-size: 0.9rem;
    }

    .mobile-auth-bar span {
        color: var(--text-secondary);
    }

    .mobile-quick-register,
    .mobile-quick-login {
        color: var(--primary);
        font-weight: 600;
        text-decoration: none;
        transition: all 0.2s ease;
    }

    .mobile-quick-register:hover,
    .mobile-quick-login:hover {
        color: var(--primary-dark);
        transform: translateX(2px);
    }

    /* 登录注册页面移动端优化 */
    .auth-page {
        padding-top: 20px;
        align-items: flex-start;
    }

    .auth-card {
        width: 100%;
        max-width: 400px;
        margin: 0 auto;
    }

    .container {
        padding: 0 12px;
    }

    /* 卡片 */
    .card {
        padding: 18px;
        margin-bottom: 16px;
    }

    /* 按钮 */
    .btn {
        padding: 11px 20px;
        font-size: 0.9rem;
    }

    .btn-sm {
        padding: 7px 14px;
        font-size: 0.82rem;
    }

    /* 输入框 */
    .input,
    input,
    textarea,
    select {
        padding: 11px 14px;
        font-size: 0.95rem;
    }

    /* 表单 */
    .form-group {
        margin-bottom: 16px;
    }

    .form-group label {
        font-size: 0.9rem;
    }

    /* 网格 */
    .grid {
        gap: 16px;
    }

    .grid-3,
    .grid-4 {
        grid-template-columns: repeat(2, 1fr);
    }

    /* 标题 */
    h1 { font-size: 1.75rem; }
    h2 { font-size: 1.5rem; }
    h3 { font-size: 1.3rem; }
    h4 { font-size: 1.15rem; }

    /* 间距 */
    .mt-xl { margin-top: 20px; }
    .mb-xl { margin-bottom: 20px; }
    .p-xl { padding: 20px; }

    /* 空状态 */
    .empty-state {
        padding: 40px 16px;
    }

    .empty-state .empty-icon {
        font-size: 3rem;
    }

    /* 模态框 */
    .modal-overlay {
        padding: 12px;
    }

    .modal {
        max-height: 95vh;
    }

    .modal-header {
        padding: 16px 20px;
    }

    .modal-body {
        padding: 20px;
    }

    .modal-footer {
        padding: 14px 20px;
        flex-direction: column;
    }

    .modal-footer .btn {
        width: 100%;
    }

    /* 导航栏 */
    .navbar {
        padding: 12px 0;
    }

    .navbar-menu {
        gap: 16px;
    }
}

/* 小屏手机优化 */
@media (max-width: 480px) {
    /* 移动端快捷入口优化 */
    .mobile-auth-bar {
        padding: 10px 16px;
        font-size: 0.85rem;
        gap: 6px;
    }

    .mobile-auth-bar span {
        color: var(--text-secondary);
    }

    .mobile-quick-register,
    .mobile-quick-login {
        color: var(--primary);
        font-weight: 600;
    }

    /* 登录注册页面小屏优化 */
    .auth-card {
        padding: 20px 16px;
        margin: 0 12px;
    }

    .auth-title {
        font-size: 1.3rem;
    }

    .auth-subtitle {
        font-size: 0.85rem;
    }

    .auth-page {
        padding: 16px 0;
    }

    .nav-auth {
        display: none;
    }

    /* 容器 */
    .container {
        padding: 0 10px;
    }

    /* 卡片 */
    .card {
        padding: 14px;
        margin-bottom: 12px;
    }

    /* 按钮 */
    .btn {
        padding: 10px 16px;
        font-size: 0.88rem;
    }

    .btn-block-mobile {
        width: 100%;
    }

    /* 输入框 - 统一圆角 */
    .input,
    input,
    textarea,
    select {
        padding: 10px 14px;
        font-size: 0.9rem;
        border-radius: 12px;
        border: 1.5px solid #f0e6ea;
        transition: all 0.25s ease;
    }

    .input:focus,
    input:focus,
    textarea:focus,
    select:focus {
        border-color: #FF6B9D;
        box-shadow: 0 0 0 3px rgba(255, 107, 157, 0.1);
    }

    /* 网格 */
    .grid {
        gap: 12px;
    }

    .grid-2,
    .grid-3,
    .grid-4 {
        grid-template-columns: 1fr;
    }

    /* 标题 */
    h1 { font-size: 1.5rem; }
    h2 { font-size: 1.35rem; }
    h3 { font-size: 1.2rem; }
    h4 { font-size: 1.05rem; }

    /* 间距 */
    .mt-xl { margin-top: 16px; }
    .mb-xl { margin-bottom: 16px; }
    .p-xl { padding: 16px; }

    /* 空状态 */
    .empty-state {
        padding: 30px 12px;
    }

    .empty-state .empty-icon {
        font-size: 2.5rem;
    }

    /* 模态框 */
    .modal {
        border-radius: 8px;
    }

    .modal-header {
        padding: 14px 16px;
    }

    .modal-body {
        padding: 16px;
    }

    /* Toast通知框移动端优化 */
    .toast {
        top: 10px;
        left: 10px;
        right: 10px;
        transform: translateX(0) translateY(-10px);
        padding: 10px 16px;
        font-size: 0.85rem;
        white-space: normal;
        text-align: center;
        border-radius: 12px;
    }

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

    /* 导航栏移动端菜单 */
    .navbar-menu {
        display: none;
    }

    .navbar-menu.mobile-open {
        display: flex;
        flex-direction: column;
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background: white;
        padding: 16px;
        box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
        gap: 12px;
    }

    /* 角色标签移动端适配 */
    .role-badge {
        font-size: 0.65rem;
        padding: 1px 6px;
        margin-left: 4px;
    }

    .comment-author .role-badge {
        font-size: 0.6rem;
        padding: 1px 5px;
    }

    /* 登录注册按钮移动端优化 - 渐变精致风格 */
    .auth-page .btn-register,
    .auth-page .btn-register-submit,
    .auth-page .btn-login {
        width: 100%;
        padding: 13px 20px;
        border-radius: 14px;
        font-size: 0.95rem;
        font-weight: 600;
        min-height: 48px;
        margin-top: 12px;
        letter-spacing: 0.5px;
        transition: all 0.3s ease;
    }

    .auth-page .btn-register,
    .auth-page .btn-register-submit {
        background: linear-gradient(135deg, #FF6B9D 0%, #FF8A80 100%) !important;
        box-shadow: 0 4px 15px rgba(255, 107, 157, 0.35), 0 2px 6px rgba(255, 107, 157, 0.18);
        color: #fff !important;
        border: none !important;
    }

    .auth-page .btn-register:hover,
    .auth-page .btn-register-submit:hover {
        box-shadow: 0 6px 22px rgba(255, 107, 157, 0.45), 0 3px 8px rgba(255, 107, 157, 0.25);
        transform: translateY(-2px);
        background: linear-gradient(135deg, #FF558B 0%, #FF7A70 100%) !important;
    }

    .auth-page .btn-login {
        background: linear-gradient(135deg, #fff 0%, #fffaf5 100%);
        box-shadow: 0 3px 12px rgba(255, 107, 157, 0.18), 0 1px 4px rgba(255, 107, 157, 0.08);
        border: 1.5px solid rgba(255, 107, 157, 0.25) !important;
        color: #FF6B9D !important;
    }

    .auth-page .btn-login:hover {
        box-shadow: 0 5px 18px rgba(255, 107, 157, 0.28), 0 2px 6px rgba(255, 107, 157, 0.14);
        transform: translateY(-2px);
        border-color: #FF6B9D !important;
    }

    /* 验证码移动端优化 */
    .captcha-img {
        min-width: 80px;
        height: 44px;
    }
}

/* 触摸设备优化 */
@media (hover: none) and (pointer: coarse) {
    .btn,
    .tag,
    a,
    input[type="text"],
    input[type="password"],
    input[type="email"],
    input[type="search"],
    input[type="url"],
    input[type="tel"],
    input[type="number"],
    input:not([type]),
    select,
    textarea {
        min-height: 44px;
    }

    .btn-sm {
        min-height: 40px;
    }

    /* 导航栏登录注册按钮例外：保持紧凑 */
    .navbar .btn-login,
    .navbar .btn-register {
        min-height: auto !important;
    }

    /* checkbox/radio 不需要最小高度 */
    input[type="checkbox"],
    input[type="radio"] {
        min-height: auto !important;
        width: 18px !important;
        height: 18px !important;
    }
}

/* 打印优化 */
@media print {
    .navbar,
    .btn,
    .modal-overlay {
        display: none !important;
    }

    body {
        background: white;
    }

    .card {
        box-shadow: none;
        border: 1px solid #ddd;
    }
}

/* 超小屏手机优化(<= 375px) - P1-5/6 快捷卡片 2x2 + 筛选横向滚动 */
@media (max-width: 375px) {
    /* 快捷功能卡片 2x2 布局 */
    .quick-cards {
        grid-template-columns: repeat(2, 1fr);
        gap: 8px;
        padding: 0;
    }

    .quick-card {
        padding: 12px 8px;
    }

    .quick-card-icon {
        font-size: 1.5rem;
    }

    .quick-card-text {
        font-size: 0.75rem;
    }

    /* 筛选标签横向滚动 + scroll-snap */
    .filter-tags,
    .filter-categories {
        overflow-x: auto;
        scroll-snap-type: x mandatory;
        -webkit-overflow-scrolling: touch;
        flex-wrap: nowrap;
        padding-bottom: 4px;
    }

    .filter-tag {
        scroll-snap-align: start;
        flex-shrink: 0;
        white-space: nowrap;
    }
}

/* 极小屏(<= 320px) - 保持按钮高度 >= 44px,P1-5 */
@media (max-width: 320px) {
    .quick-cards {
        grid-template-columns: repeat(2, 1fr);
        gap: 6px;
    }

    .quick-card {
        min-height: 44px;
        padding: 10px 6px;
    }
}

/* Emoji fallback - 渲染失败时回退到文字(P1-10) */
.emoji-fallback {
    font-family: "Apple Color Emoji", "Segoe UI Emoji", "Noto Color Emoji", "Segoe UI Symbol", sans-serif;
}

/* 当 emoji 字体不可用时隐藏,显示 aria-label 文字 */
.no-emoji-support .emoji-fallback {
    font-size: 0;
}
.no-emoji-support .emoji-fallback::after {
    content: attr(data-fallback);
    font-size: 1rem;
}

/* ===== 体验专项收口：溢出、触控区域、状态与动效 ===== */
*,
*::before,
*::after {
    box-sizing: border-box;
}

html {
    overflow-x: clip;
}

body {
    overflow-x: hidden;
}

.nav-inner,
.main-content,
.container,
.post-card,
.detail-card,
.comment-section,
.profile-tabs-section,
.feedback-card,
.radio-form-card {
    min-width: 0;
}

.post-content,
.comment-content,
.comment-text,
.notification-text,
.history-item-content,
.song-msg-bubble,
.feedback-submit-note {
    overflow-wrap: anywhere;
}

.feed-state,
.detail-state,
.profile-tab-state,
.radio-state {
    display: flex;
    min-height: 132px;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 28px 16px;
    color: var(--text-secondary, #64748b);
    text-align: center;
}

.feed-state-icon,
.detail-state-icon,
.radio-state-icon {
    font-size: 1.7rem;
    line-height: 1;
}

.feed-state-title,
.detail-state p,
.profile-tab-state p,
.radio-state-message {
    max-width: 100%;
    margin: 0;
    overflow-wrap: anywhere;
    line-height: 1.55;
}

.feed-state-retry,
.detail-state-retry,
.profile-tab-state button,
.radio-state-retry,
.state-retry {
    min-height: 44px;
    margin-top: 4px;
    padding: 9px 16px;
    border: 1px solid rgba(255, 107, 157, 0.22);
    border-radius: 12px;
    background: var(--bg-card, #fff);
    color: var(--primary, #ff6b9d);
    font: inherit;
    font-size: 0.84rem;
    font-weight: 600;
    cursor: pointer;
    touch-action: manipulation;
}

.feed-state-retry:hover,
.detail-state-retry:hover,
.profile-tab-state button:hover,
.radio-state-retry:hover,
.state-retry:hover {
    border-color: var(--primary, #ff6b9d);
    background: rgba(255, 107, 157, 0.06);
}

.loading-spinner {
    flex: 0 0 auto;
}

@media (max-width: 768px) {
    .bottom-tab-bar {
        height: calc(60px + env(safe-area-inset-bottom, 0px));
        padding-right: max(8px, env(safe-area-inset-right, 0px));
        padding-bottom: env(safe-area-inset-bottom, 0px);
        padding-left: max(8px, env(safe-area-inset-left, 0px));
        box-sizing: border-box;
    }

    .tab-item {
        min-height: 44px;
        padding: 7px 4px;
        touch-action: manipulation;
    }

    .navbar .nav-inner {
        padding-right: max(12px, env(safe-area-inset-right, 0px));
        padding-left: max(12px, env(safe-area-inset-left, 0px));
    }

    body.post-detail-page .main-content {
        padding-bottom: calc(88px + env(safe-area-inset-bottom, 0px));
    }

    body.home-page .post-card,
    body.post-detail-page .detail-card,
    body.post-detail-page .comment-section,
    body.profile-page .profile-menu-item,
    body.feedback-screen .type-item,
    body.feedback-screen .submit-btn {
        touch-action: manipulation;
    }

    body.home-page .post-card .action-btn,
    body.post-detail-page .detail-actions button,
    body.post-detail-page .btn-comment-submit,
    body.post-detail-page .tool-btn,
    body.profile-page .profile-tab,
    body.feedback-screen .type-item,
    body.feedback-screen .submit-btn,
    body.radio-page .btn-publish {
        min-height: 44px;
    }

    #sideCheckin.mobile-checkin-card .btn-checkin,
    .mobile-checkin-slot .checkin-retry {
        min-height: 44px;
    }
}

@media (prefers-reduced-motion: reduce) {
    html {
        scroll-behavior: auto !important;
    }

    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
        scroll-behavior: auto !important;
    }
}