/* ============================================================
   中赛照明 - 移动端适配与浏览器兼容性样式
   包含：移动端优化、响应式断点、浏览器兼容、辅助工具类
   ============================================================ */

/* ===================== 移动端CSS变量覆盖 ===================== */
@media (max-width: 768px) {
    :root {
        --header-height: 70px;
        --section-padding: var(--section-padding-sm);
    }

    /* 移动端浮动按钮样式调整 */
    .floating-buttons {
        right: 20px;
        left: auto;
        bottom: 80px;
        gap: 10px;
    }

    /* 移动端回到顶部按钮也在右侧一列 */
    .scroll-top-btn {
        right: 15px;
        bottom: 20px;
    }
}

/* ===================== Safari / WebKit 兼容性修复 ===================== */
@supports (-webkit-appearance: none) {
    /* Safari特殊样式 */
    .product-card img,
    .gallery-item img,
    .scene-card img,
    .column-full-image img {
        will-change: transform;
    }
}

/* Safari输入框样式修复 */
input[type="text"],
input[type="email"],
input[type="tel"],
input[type="password"],
input[type="number"],
textarea,
select {
    -webkit-appearance: none;
    -webkit-border-radius: 0;
}

/* Safari日期选择器样式 */
input[type="date"],
input[type="time"],
input[type="datetime-local"] {
    -webkit-appearance: listbox;
}

/* ===================== Firefox 兼容性修复 ===================== */
@-moz-document url-prefix() {
    /* Firefox特殊样式 */
    .hero-scroll-indicator .scroll-line {
        background: linear-gradient(to bottom, var(--primary), transparent);
    }
}

/* Firefox滚动条样式 */
* {
    scrollbar-width: thin;
    scrollbar-color: var(--primary) var(--bg-secondary);
}

/* ===================== IE11 / Edge Legacy 兼容性 ===================== */
@media all and (-ms-high-contrast: none), (-ms-high-contrast: active) {
    /* IE11/Edge兼容样式 */
    .gradient-text {
        background: transparent;
        color: var(--primary);
    }
}

/* Edge 旧版本兼容 */
@supports (-ms-ime-align: auto) {
    .gradient-text {
        background: transparent;
    }
}

/* ===================== 移动端基础优化 ===================== */

/* 触摸优化 */
@media (hover: none) and (pointer: coarse) {
    /* 移除移动端hover效果，使用active替代 */
    .product-card:active,
    .scene-card:active,
    .card:active,
    .category-card:active {
        transform: scale(0.98);
    }

    /* 禁用某些动画提升性能 */
    .cursor-glow {
        display: none !important;
    }

    /* 触摸友好的点击区域 */
    .filter-btn,
    .filter-tab,
    .btn-primary-custom,
    .btn-ghost {
        min-height: 44px;
        min-width: 44px;
    }

    /* 禁用图片缩放时的闪烁 */
    img {
        -webkit-backface-visibility: hidden;
        backface-visibility: hidden;
    }
}

/* 触摸设备上的:focus效果优化 */
@media (hover: none) {
    *:focus:not(:focus-visible) {
        outline: none;
    }

    *:focus-visible {
        outline: 2px solid var(--gold);
        outline-offset: 2px;
    }
}

/* ===================== 响应式断点系统 ===================== */

/* 超大屏 (1400px+) */
@media (max-width: 1400px) {
    .container {
        max-width: 1200px;
    }

    .footer-grid {
        grid-template-columns: repeat(5, 1fr);
        gap: 20px;
    }
}

/* 大屏 (1200px - 1399px) */
@media (max-width: 1200px) {
    .container {
        max-width: 960px;
    }

    .about-grid {
        gap: 40px;
    }

    .features-layout {
        gap: 40px;
    }

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

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

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

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

    .footer-grid {
        grid-template-columns: repeat(3, 1fr);
        gap: 30px;
    }

    .footer-brand-col {
        grid-column: 1 / -1;
        padding-right: 0;
    }

   
}

/* 平板 (992px - 1199px) */
@media (max-width: 992px) {
    .container {
        max-width: 720px;
        padding: 0 24px;
    }

    .container-fluid {
        padding-left: 24px !important;
        padding-right: 24px !important;
    }

    section {
        padding: var(--section-padding-md) 0;
    }

    .page-hero {
        padding: 140px 0 60px;
        min-height: auto;
    }

    /* Hero响应式 */
    #hero {
        min-height: 600px;
    }

    /* 关于区域响应式 */
    .about-grid {
        grid-template-columns: 1fr;
        gap: var(--spacing-lg);
    }

    .about-grid > div:last-child {
        order: -1;
    }

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

    /* 特性列表响应式 */
    .features-layout {
        grid-template-columns: 1fr;
        gap: var(--spacing-lg);
    }

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

    /* 品牌卡片响应式 */
    .brand-card {
        grid-template-columns: 1fr;
        gap: 30px;
    }

    .brand-card:nth-child(even) {
        direction: ltr;
    }

    /* 解决方案响应式 */
    .solution-grid {
        grid-template-columns: 1fr;
        gap: 40px;
    }

    /* 品牌价值响应式 */
    .brand-values {
        grid-template-columns: repeat(2, 1fr);
        gap: 20px;
    }

    /* 技术优势响应式 */
    .tech-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    /* 联系卡片响应式 */
    .contact-cards {
        grid-template-columns: repeat(2, 1fr);
        gap: 20px;
    }

    /* 页脚响应式 */
    .footer-main {
        padding: 40px 0 30px;
    }

    .footer-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 20px;
    }

    .footer-brand-col {
        grid-column: auto;
    }

    .footer-links-col {
        padding: 15px 0;
    }

    /* 菜单响应式 */
    .menu-container {
        padding: 0 30px;
    }

    .menu-nav-text {
        font-size: 1.8rem;
    }

    .menu-nav-en {
        display: none;
    }

    /* 头部响应式 */
    .header-container {
        padding: 0 30px;
    }

    /* 案例展示响应式 */


    /* 滚动条隐藏 */
    .hot-products-scroll {
        width: 100%;
        overflow-x: auto;
        -webkit-overflow-scrolling: touch;
    }

    /* Timeline响应式 */
    .timeline::before {
        left: 20px;
    }

    .timeline-item {
        width: 100%;
        padding-left: 60px;
        padding-right: 0;
    }

    .timeline-item:nth-child(odd),
    .timeline-item:nth-child(even) {
        left: 0;
        text-align: left;
    }

    .timeline-item:nth-child(odd) .timeline-dot,
    .timeline-item:nth-child(even) .timeline-dot {
        left: 12px;
        right: auto;
    }

    /* Testimonial响应式 */
    .testimonial-card {
        grid-template-columns: 1fr;
        gap: 30px;
        padding: 0;
    }
}

/* 小平板 (768px - 991px) */
@media (max-width: 768px) {
    :root {
        --header-height: 70px;
    }

    .container {
        max-width: 540px;
        padding: 0 16px;
    }

    .container-fluid {
        padding-left: 16px !important;
        padding-right: 16px !important;
    }

    section {
        padding: 50px 0;
    }

    /* Hero响应式 */
    #hero {
        min-height: 500px;
    }

    .hero-scroll-indicator {
        bottom: 20px;
        left: 0;
        right: 0;
        transform: none;
        margin: 0 auto;
        width: fit-content;
    }

    /* 标题响应式 */
    .section-title {
        font-size: clamp(1.8rem, 5vw, 2.4rem);
    }

    .page-title {
        font-size: clamp(2rem, 6vw, 2.5rem);
    }

    /* 按钮响应式 */
    .btn-primary-custom,
    .btn-ghost {
        padding: 12px 24px;
        font-size: var(--font-sm);
    }

    /* 统计数字响应式 */
    .stats-row {
        grid-template-columns: 1fr;
        gap: 12px;
    }

    .stat-item {
        display: flex;
        align-items: center;
        gap: var(--spacing-sm);
        text-align: left;
        padding: var(--spacing-sm);
    }

    .stat-number {
        font-size: 2rem;
        min-width: 80px;
    }

    .stat-label {
        margin-top: 0;
        font-size: 0.75rem;
    }

    /* 特性卡片响应式 */
    .features-grid {
        grid-template-columns: 1fr;
    }

    /* 专栏网格响应式 - 768px平板2列 */
    .column-grid {
        display: grid;
        grid-template-columns: repeat(2, 1fr);
    }

    .column-grid-item:nth-child(2n) {
        border-right: none;
    }

    .column-grid-item:nth-child(2n + 1) {
        border-right: 1px solid var(--border);
    }

    .column-grid-item:nth-child(n + 3) {
        border-top: 1px solid var(--border);
    }

    .category-card {
        padding: 30px 20px;
    }

    .feature-card {
        padding: 30px 20px;
    }

    /* 技术卡片响应式 */
    .tech-item {
        padding: 30px 20px;
    }

    /* 联系卡片响应式 */
    .contact-card {
        padding: 24px 16px;
    }

    /* 品牌价值响应式 */
    .brand-value-item {
        padding: 30px 20px;
    }

    /* 场景卡片响应式 */
    .scene-card {
        aspect-ratio: 16/10;
    }

    /* 热门产品响应式 */
    .hot-product-card {
        flex: 0 0 260px;
    }

    /* 专栏卡片响应式 - 网格布局 */
    .column-grid {
        display: grid;
        grid-template-columns: repeat(4, 1fr);
        width: 100%;
    }

    .column-grid-item {
        border-right: 1px solid var(--border);
    }

    .column-grid-item:last-child {
        border-right: none;
    }

    .column-grid-item .column-full-card {
        height: 100%;
        border-right: none;
    }

    .column-full-card {
        border-right: none;
        border-bottom: 1px solid var(--border);
    }

    /* 案例展示响应式 */
   

    /* 特色列表响应式 */
    .features-list {
        grid-template-columns: 1fr;
    }

    /* CTA响应式 */
    .cta-section {
        padding: 60px 0;
    }

    .cta-content h2 {
        font-size: 1.8rem;
    }

    /* 菜单响应式 */
    .menu-container {
        padding: 0 20px;
    }

    .menu-header {
        height: 70px;
    }

    .menu-logo img {
        height: 32px;
    }

    .menu-nav-text {
        font-size: 1.5rem;
    }

    .menu-nav-bottom {
        flex-direction: column;
        gap: 20px;
        align-items: flex-start;
    }

    /* 头部响应式 */
    .header-container {
        padding: 0 16px;
    }

    .menu-text {
        display: none;
    }

    .header-icon-btn {
        width: 38px;
        height: 38px;
        margin-right: 8px;
    }

    /* 页脚响应式 */
    .footer-main {
        padding: 30px 0 20px;
    }

    .footer-grid {
        grid-template-columns: 1fr;
        text-align: center;
    }

    .footer-logo {
        justify-content: center;
    }

    .footer-brand-desc {
        display: none;
    }

    .footer-social {
        justify-content: center;
    }

    .footer-links-col {
        border-top: 1px solid rgba(212, 175, 55, 0.1);
        padding: 20px 0;
    }

    .footer-links-col:first-of-type {
        border-top: none;
        padding-top: 0;
    }

    .footer-contact {
        display: none;
    }

    .contact-item {
        flex-direction: column;
        align-items: center;
        text-align: center;
    }

    .contact-item i {
        margin-bottom: 8px;
    }

    .footer-bottom-inner {
        flex-direction: column;
        gap: 10px;
        text-align: center;
    }

    .footer-tagline {
        display: none;
    }

    .footer-bottom-links {
        flex-wrap: wrap;
        justify-content: center;
        gap: 8px;
    }

    .footer-bottom-links .divider {
        display: none;
    }

    .footer-copy {
        font-size: 0.7rem;
    }

    .footer-qrcode {
        justify-content: center;
    }

    /* Timeline响应式 */
    .timeline-item {
        padding: 0 0 40px 50px;
    }

    /* Testimonial响应式 */
    .testimonial-image {
        max-width: 200px;
        margin: 0 auto;
    }

    /* About Intro响应式 */
    .about-intro-grid {
        grid-template-columns: 1fr;
        gap: 30px;
    }

    .about-intro-content h2 {
        font-size: 1.8rem;
    }

    /* 品牌使命响应式 */
    .brand-mission {
        padding: 16px;
    }

    .mission-item {
        font-size: 0.9rem;
    }

    /* 滚动到顶部按钮 */
    .scroll-top-btn {
        bottom: 20px;
        right: 20px;
        width: 44px;
        height: 44px;
    }

    /* 开场动画移动端优化 */
    .intro-main-container {
        flex-direction: column;
        gap: 20px;
    }

    .intro-side {
        transform: none !important;
    }

    .left-side,
    .right-side {
        flex-direction: row;
        gap: 0px;
    }

    .side-line {
        width: 40px;
    }

    .side-text {
        font-size: 2.5rem;
    }

    .intro-kc-logo img {
        width: 80px;
        height: 80px;
    }

    .intro-brand-name {
        font-size: 5rem;
        letter-spacing: 0.15em;
    }

    .intro-en-slogan {
        font-size: 0.7rem;
        letter-spacing: 0.15em;
    }

    /* 产品轮播优化 */
    .product-grid {
        display: grid;
        grid-template-columns: repeat(2, 1fr);
        gap: 0px;
    }

    .product-card {
        aspect-ratio: 1/1.3;
    }
}

/* 手机 (576px - 767px) */
@media (max-width: 576px) {
    .container {
        max-width: 100%;
        padding: 0 16px;
    }

    .container-fluid {
        padding-left: 16px !important;
        padding-right: 16px !important;
    }

    section {
        padding: 50px 0;
    }

    /* Hero响应式 */
    #hero {
        min-height: 450px;
    }

    /* 标题响应式 */
    .section-title {
        font-size: clamp(1.6rem, 6vw, 2rem);
    }

    .section-eyebrow {
        font-size: 0.65rem;
        letter-spacing: 0.25em;
    }

    .section-desc {
        font-size: 0.95rem;
    }

    /* 按钮响应式 */
    .btn-primary-custom,
    .btn-ghost {
        padding: 14px 24px;
        font-size: 0.9rem;
        width: 100%;
        max-width: 300px;
    }

    /* 特性网格响应式 */
    .categories-grid,
    .features-grid {
        grid-template-columns: 1fr;
    }

    /* 专栏网格响应式 - 手机单列 */
    .column-grid {
        grid-template-columns: 1fr;
    }

    .column-grid-item {
        border-right: none !important;
        border-bottom: 1px solid var(--border);
    }

    .column-grid-item:last-child {
        border-bottom: none;
    }

    /* 品牌值响应式 */
    .brand-values {
        grid-template-columns: 1fr;
    }

    /* 联系卡片响应式 */
    .contact-cards {
        grid-template-columns: 1fr;
    }

    .contact-card {
        padding: 24px 20px;
    }

    .contact-card-icon {
        width: 50px;
        height: 50px;
    }

    /* CTA响应式 */
    .cta-section {
        padding: 50px 16px;
    }

    .cta-content h2 {
        font-size: 1.5rem;
    }

    .cta-content p {
        font-size: 0.9rem;
    }

    .cta-buttons {
        flex-direction: column;
        align-items: center;
    }

    /* 场景卡片响应式 */
    .scene-card {
        aspect-ratio: 4/3;
    }

    .scene-card-name {
        font-size: 1.1rem;
    }

    /* 热门产品响应式 */
    .hot-products-fullwidth {
        padding: 0 16px;
    }

    .hot-products-track {
        padding-left: 0;
    }

    .hot-product-card {
        flex: 0 0 240px;
    }

    /* 案例展示响应式 */
   

    /* 技术网格响应式 */
    .tech-grid {
        grid-template-columns: 1fr;
    }

    /* 关于简介响应式 */
    .about-intro-content h2 {
        font-size: 1.5rem;
    }

    .about-intro-content p {
        font-size: 0.95rem;
    }

    /* 品牌卡片响应式 */
    .brand-card {
        padding: 24px 20px;
    }

    .brand-card-title {
        font-size: 1.5rem;
    }

    .brand-card-desc {
        font-size: 0.9rem;
    }

    .brand-card-number {
        font-size: 3rem;
    }

    /* 特色卡片响应式 */
    .feature-card {
        padding: 24px 20px;
    }

    .feature-card-icon {
        width: 60px;
        height: 60px;
    }

    /* Timeline响应式 */
    .timeline {
        margin: 40px 0 0;
    }

    .timeline-year {
        font-size: 1.2rem;
    }

    .timeline-content {
        padding: 16px;
    }

    .timeline-content h4 {
        font-size: 1rem;
    }

    /* Testimonial响应式 */
    .testimonial-quote {
        font-size: 1.1rem;
    }

    .testimonial-controls {
        justify-content: center;
    }

    /* 页脚响应式 */
    .footer-grid {
        gap: 0;
    }

    .footer-links-col .footer-links a {
        padding: 10px 0;
    }

    /* 产品网格响应式 */
    .product-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 10px;
    }

    .product-card {
        aspect-ratio: 1/1.4;
    }

    .product-name {
        font-size: 1rem;
    }

    .product-desc {
        display: none;
    }

    /* 表单响应式 */
    .form-group input,
    .form-group select,
    .form-group textarea {
        padding: 12px 14px;
        font-size: 16px; /* 防止iOS缩放 */
    }

    .form-group textarea {
        min-height: 120px;
    }

    /* 筛选标签响应式 */
    .filter-buttons {
        gap: 8px;
    }

    .filter-btn,
    .filter-tab {
        padding: 10px 16px;
        font-size: 0.8rem;
    }

    /* 页面英雄响应式 */
    .page-hero {
        padding: 120px 0 50px;
    }

    .page-hero .page-title {
        font-size: clamp(1.8rem, 6vw, 2.2rem);
    }

    .page-hero .page-subtitle {
        font-size: 0.9rem;
    }

    /* 加载更多按钮 */
    .load-more-btn {
        width: 100%;
        max-width: 280px;
    }

    /* 特色图片响应式 */
    .about-image-accent {
        display: none;
    }

    .solution-image-accent {
        display: none;
    }
}

/* 超小屏 (< 375px) */
@media (max-width: 375px) {
    .container,
    .container-fluid {
        padding-left: 12px !important;
        padding-right: 12px !important;
    }

    section {
        padding: 40px 0;
    }

    /* 标题响应式 */
    .section-title {
        font-size: 1.5rem;
    }

    /* 产品卡片响应式 */
    .hot-product-card {
        flex: 0 0 200px;
    }

    .hot-product-name {
        font-size: 1rem;
    }

    .hot-product-price {
        font-size: 1rem;
    }

    /* 案例展示响应式 */
    .gallery-item {
        width: 220px;
        height: 280px;
    }

    .gallery-item-label {
        font-size: 0.85rem;
        padding: 6px 12px;
    }

    /* 联系卡片响应式 */
    .contact-card-value {
        font-size: 0.9rem;
    }

    /* 开场动画响应式 */
    .intro-kc-logo img {
        width: 60px;
        height: 60px;
    }

    .intro-brand-name {
        font-size: 1.8rem;
    }

    .intro-tagline {
        font-size: 0.6rem;
    }

    .side-text {
        font-size: 2rem;
    }
}

/* 横屏模式优化 */
@media (max-height: 500px) and (orientation: landscape) {
    #hero {
        min-height: 100vh;
        height: auto;
    }

    .hero-scroll-indicator {
        bottom: 20px;
        left: 0;
        right: 0;
        transform: none;
        margin: 0 auto;
        width: fit-content;
    }

    .scroll-line {
        height: 30px;
    }

    /* 全屏菜单横屏优化 */
    .fullscreen-menu .menu-container {
        padding: 20px 60px;
    }

    .fullscreen-menu .menu-nav {
        flex-direction: row;
        align-items: center;
    }

    .fullscreen-menu .menu-nav-main {
        flex-direction: row;
        flex-wrap: wrap;
        gap: 20px;
    }

    .fullscreen-menu .menu-nav-item {
        padding: 10px 0;
    }

    .fullscreen-menu .menu-nav-text {
        font-size: 1.2rem;
    }

    .fullscreen-menu .menu-nav-bottom {
        flex-direction: row;
        padding: 20px 0;
    }
}

/* ===================== 辅助工具类 ===================== */

/* Flexbox工具 */
.flex { display: flex; }
.flex-col { flex-direction: column; }
.flex-wrap { flex-wrap: wrap; }
.items-center { align-items: center; }
.items-start { align-items: flex-start; }
.items-end { align-items: flex-end; }
.justify-center { justify-content: center; }
.justify-between { justify-content: space-between; }
.justify-end { justify-content: flex-end; }

/* Grid工具 */
.grid { display: grid; }
.grid-cols-2 { grid-template-columns: repeat(2, 1fr); }
.grid-cols-3 { grid-template-columns: repeat(3, 1fr); }
.grid-cols-4 { grid-template-columns: repeat(4, 1fr); }

/* 间距工具 */
.gap-1 { gap: 8px; }
.gap-2 { gap: 16px; }
.gap-3 { gap: 24px; }
.gap-4 { gap: 32px; }

/* 文本工具 */
.text-center { text-align: center; }
.text-left { text-align: left; }
.text-right { text-align: right; }

/* 隐藏工具 */
.hidden { display: none !important; }
.visible-mobile { display: none; }
.visible-desktop { display: block; }

/* 移动端显示 */
@media (max-width: 768px) {
    .hidden-mobile { display: none !important; }
    .visible-mobile { display: block !important; }
    .visible-mobile-flex { display: flex !important; }
}

/* 桌面端显示 */
@media (min-width: 769px) {
    .hidden-desktop { display: none !important; }
    .visible-desktop { display: block !important; }
    .visible-desktop-flex { display: flex !important; }
}

/* ===================== 性能优化 ===================== */

/* GPU加速 */
.gpu-accelerated {
    transform: translateZ(0);
    -webkit-transform: translateZ(0);
    backface-visibility: hidden;
    -webkit-backface-visibility: hidden;
}

/* 减少动画（用户偏好） */
@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
        scroll-behavior: auto !important;
    }

    .gallery-track,
    .marquee-track,
    .brand-marquee .marquee-track {
        animation: none !important;
    }
}

/* 弱网络环境优化 */
@media (prefers-reduced-data: reduce) {
    .intro-particles,
    .cursor-glow,
    .light-beam,
    .light-beam-2 {
        display: none !important;
    }
}

/* 高对比度模式 */
@media (prefers-contrast: high) {
    :root {
        --border: rgba(255, 255, 255, 0.4);
        --gold: #ffd700;
        --text-secondary: #ffffff;
    }

    .btn-primary-custom,
    .btn-ghost {
        border: 2px solid currentColor;
    }
}

/* 打印样式 */
@media print {
    .main-header,
    .fullscreen-menu,
    .cart-sidebar,
    .scroll-top-btn,
    .scroll-progress-bar,
    .cursor-glow,
    #intro {
        display: none !important;
    }

    body {
        background: white;
        color: black;
    }

    section {
        padding: 20px 0;
    }

    a {
        text-decoration: underline;
    }
}

/* 会员页面移动端适配 - 防止被导航栏覆盖 */
@media (max-width: 768px) {
    .login-page,
    .register-page,
    .forgot-page {
        padding-top: 60px;
    }

    .login-right,
    .register-right,
    .forgot-right {
        padding-top: 20px;
    }

    .login-page .login-right,
    .register-page .register-right,
    .forgot-page .forgot-right {
        padding: 20px 16px;
        padding-top: calc(env(safe-area-inset-top, 0px) + 70px);
    }
}