/* 品牌色彩系统 - CSS变量定义 */
:root {
    --color-primary: #31C24D;
    --color-primary-dark: #1B7A34;
    --color-primary-light: #5AD36C;
    --color-primary-lightest: #EAF7EE;

    --color-secondary-dark: #000000;
    --color-secondary-light: #666666;

    --color-bg-primary: #FFFFFF;
    --color-bg-secondary: #F2F2F2;
    --color-bg-tertiary: #D8D8D8;

    --color-text-primary: #111111;
    --color-text-secondary: #666666;
    --color-text-tertiary: #A3A3A3;
    --color-text-light: #FFFFFF;

    --color-border-light: #E6E6E6;
    --color-border-medium: #CFCFCF;

    --font-family-base: 'Misans', 'Segoe UI', 'Helvetica Neue', Arial, sans-serif;
    --font-family-heading: 'Roboto Mono', 'Courier New', monospace;

    --font-size-sm: 14px;
    --font-size-base: 16px;
    --font-size-lg: 18px;
    --font-size-xl: 20px;
    --font-size-2xl: 24px;

    --line-height-normal: 1.5;
    --line-height-relaxed: 1.6;

    --letter-spacing-normal: 0;

    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);

    --transition-standard: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

body {
    font-family: var(--font-family-base);
    font-size: var(--font-size-base);
    line-height: var(--line-height-relaxed);
    color: var(--color-text-primary);
    background-color: var(--color-bg-secondary);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* 容器样式 */
.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 1.5rem;
}


@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

/* 加载指示器样式 */
.loading-indicator {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 3rem 0;
    color: var(--color-text-secondary);
}

.loading-indicator .spinner {
    width: 40px;
    height: 40px;
    border: 4px solid var(--color-border-light);
    border-top: 4px solid var(--color-primary);
    border-radius: 50%;
    animation: spin 1s linear infinite;
    margin-bottom: 1rem;
}

.loading-indicator p {
    font-family: var(--font-family-base);
    font-size: var(--font-size-base);
    font-weight: 500;
}

/* 空结果提示样式 */
.empty-results {
    text-align: center;
    padding: 3rem 1rem;
    color: var(--color-text-secondary);
    background-color: var(--color-background-light);
    border-radius: var(--border-radius-md);
    border: 1px dashed var(--color-border-light);
    margin: 2rem 0;
}

.empty-results h3 {
    font-family: var(--font-family-heading);
    font-size: var(--font-size-xl);
    font-weight: 600;
    color: var(--color-text-primary);
    margin-bottom: 0.5rem;
}

.empty-results p {
    font-family: var(--font-family-base);
    font-size: var(--font-size-base);
    line-height: var(--line-height-normal);
    margin-bottom: 1.5rem;
}

.empty-results .btn {
    margin-top: 1rem;
}

/* 头部导航样式 */
header {
    background-color: var(--color-bg-primary);
    box-shadow: var(--shadow-md);
    position: sticky;
    top: 0;
    z-index: 1000;
}

header .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px;
}

.logo {
    display: flex;
    align-items: center;
}

.logo img {
    max-width: 100%;
    height: auto;
    object-fit: contain;
    transition: transform var(--transition-standard);
}

.logo img:hover {
    transform: scale(1.05);
}

/* 桌面导航 */
.main-nav ul {
    display: flex;
    list-style: none;
    padding: 0;
    margin: 0;
}

.main-nav ul li {
    margin-left: 30px;
}

.main-nav ul li a {
    text-decoration: none;
    color: var(--color-text-primary);
    font-family: var(--font-family-base);
    font-size: var(--font-size-base);
    font-weight: 500;
    letter-spacing: var(--letter-spacing-normal);
    transition: all var(--transition-standard);
    position: relative;
    padding: 8px 0;
}

.main-nav ul li a:hover,
.main-nav ul li a:focus,
.main-nav ul li a.active {
    color: var(--color-primary);
}

.main-nav ul li a::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background-color: var(--color-primary);
    transition: width var(--transition-standard);
}

.main-nav ul li a:hover::after,
.main-nav ul li a:focus::after,
.main-nav ul li a.active::after {
    width: 100%;
}

/* 移动菜单按钮 */
.mobile-menu {
    display: none;
    cursor: pointer;
    position: relative;
    z-index: 1000;
    padding: 10px;
}

/* 汉堡菜单图标 */
.menu-icon {
    display: inline-block;
    width: 28px;
    height: 2px;
    background-color: var(--color-text-primary);
    position: relative;
    transition: background-color var(--transition-standard);
}

.menu-icon::before,
.menu-icon::after {
    content: '';
    position: absolute;
    width: 28px;
    height: 2px;
    background-color: var(--color-text-primary);
    transition: all var(--transition-standard);
}

.menu-icon::before {
    top: -8px;
}

.menu-icon::after {
    top: 8px;
}

/* 菜单图标打开状态 */
.menu-icon.open {
    background-color: transparent;
}

.menu-icon.open::before {
    transform: rotate(45deg);
    top: 0;
}

.menu-icon.open::after {
    transform: rotate(-45deg);
    top: 0;
}

/* 移动菜单弹窗 */
.mobile-nav {
    position: fixed;
    top: 0;
    right: -100%;
    width: 80%;
    max-width: 350px;
    height: 100vh;
    background-color: var(--color-bg-primary);
    box-shadow: var(--shadow-xl);
    z-index: 999;
    transition: right var(--transition-standard);
    padding: 80px 20px 20px;
    overflow-y: auto;
}

.mobile-nav.active {
    right: 0;
}

.mobile-nav ul {
    list-style: none;
    padding: 0;
    margin: 0;
}

.mobile-nav li {
    margin-bottom: 8px;
    border-bottom: 1px solid var(--color-border-light);
}

.mobile-nav a {
    display: block;
    padding: 16px 20px;
    color: var(--color-text-primary);
    text-decoration: none;
    font-family: var(--font-family-base);
    font-size: var(--font-size-lg);
    font-weight: 500;
    transition: all var(--transition-standard);
}

.mobile-nav a:hover,
.mobile-nav a:focus,
.mobile-nav a.active {
    color: var(--color-primary);
    background-color: var(--color-bg-secondary);
    padding-left: 28px;
}

/* 移动端菜单遮罩层 */
.mobile-nav-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.5);
    z-index: 998;
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition-standard);
}

.mobile-nav-overlay.active {
    opacity: 1;
    visibility: visible;
}

/* 关闭按钮 */
.close-menu {
    position: absolute;
    top: 20px;
    right: 20px;
    background: none;
    border: none;
    font-size: 28px;
    color: var(--color-text-primary);
    cursor: pointer;
    padding: 10px;
    z-index: 1000;
    transition: color var(--transition-standard);
}

.close-menu:hover,
.close-menu:focus {
    color: var(--color-primary);
}

/* Hero styles — base layout kept, visual details now in custom.css */
.hero {
    background: #1A1A1A url('../images/synthesis_workshop.jpg') no-repeat center center;
    background-size: cover;
    color: #FFFFFF;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    padding: 2rem 1rem;
    margin: 0;
    position: relative;
}


/* 联系方式版块现代排版 */
.contact-content {
  display: grid;
  grid-template-columns: 1.5fr 1fr;
  gap: 24px;
  align-items: start;
}

@media (max-width: 992px){
  .contact-content { grid-template-columns: 1fr; }
}

.contact-details h3 {
  text-align: left;
  margin-bottom: 16px;
}

.contact-cards {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 16px;
  margin-bottom: 16px;
}

.placeholder-map {
  background: var(--color-bg-primary);
  border-radius: 12px;
  box-shadow: var(--shadow-md);
  padding: 24px;
}

.placeholder-map h4 { margin-bottom: 12px; }
.placeholder-map p { text-align: left; margin-bottom: 8px; }

/* Follow Us 风格统一为黑绿配色、胶囊按钮 */
.social-links h4 { text-align: left; color: var(--color-secondary-dark); margin-bottom: 10px; }
.social-icons { display: flex; flex-wrap: wrap; gap: 10px; }
.social-icon {
  display: inline-flex;
  align-items: center;
  padding: 8px 14px;
  border-radius: 9999px;
  background: var(--color-secondary-dark);
  color: var(--color-text-light);
  border: 1px solid var(--color-primary);
  text-decoration: none;
  font-size: var(--font-size-sm);
  box-shadow: var(--shadow-sm);
  transition: all var(--transition-standard);
}
.social-icon:hover { background: var(--color-primary); color: var(--color-text-light); box-shadow: var(--shadow-lg); }

/* 联系卡片应用黑绿配色设计规范 */
.contact-cards .factory-card {
  background: var(--color-secondary-dark);
  color: var(--color-text-light);
  border-left: 4px solid var(--color-primary);
  box-shadow: var(--shadow-lg);
}
.contact-cards .factory-card h4 { color: var(--color-primary-light); margin-bottom: 8px; }
.contact-cards .factory-card p { text-align: left; color: var(--color-text-light); }
.contact-cards .factory-card a { color: var(--color-primary-light); text-decoration: none; transition: color var(--transition-standard), border-color var(--transition-standard); border-bottom: 1px dashed rgba(49, 194, 77, 0.4); }
.contact-cards .factory-card a:hover { color: var(--color-primary); border-bottom-color: var(--color-primary); }

/* Hero dark overlay */
.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: rgba(0, 0, 0, 0.7);
    z-index: 1;
}

.hero-content {
    max-width: 1200px;
    width: 100%;
    margin: 0 auto;
    position: relative;
    z-index: 2;
    padding: 2rem;
}

/* 关于我们页面的特定样式 */

/* 公司简介区域 */
.company-intro {
    background-color: var(--color-bg-secondary);
}

.split-section {
    --split-bg-left: var(--color-bg-secondary);
    --split-bg-right: var(--color-bg-primary);
    background: linear-gradient(to right, var(--split-bg-left) 0 50%, var(--split-bg-right) 50% 100%);
}

@media (max-width: 767px) {
    .split-section {
        background: var(--split-bg-right);
    }
}

.intro-content {
    display: grid;
    grid-template-columns: 1fr 3fr;
    gap: 0;
    align-items: stretch;
    position: relative;
}

.intro-text h3 {
    margin-bottom: 20px;
    color: var(--color-text-primary);
}

.intro-text p {
    text-align: left;
    margin-bottom: 20px;
    font-size: var(--font-size-base);
    line-height: var(--line-height-relaxed);
}

/* 公司简介文本卡片美化 */
.intro-text {
    background-color: var(--color-bg-primary);
    border-radius: 12px;
    padding: 24px;
    box-shadow: var(--shadow-sm);
    position: relative;
    z-index: 2;
    margin-right: -14%;
}

.intro-image {
    width: 100%;
    min-height: clamp(520px, 45vw, 720px);
    aspect-ratio: 16 / 9;
    background-color: transparent;
    border-radius: 0;
    display: flex;
    align-items: stretch;
    justify-content: center;
    overflow: hidden;
    position: relative;
    box-shadow: none;
}

.placeholder-image {
    font-size: var(--font-size-xl);
    color: var(--color-text-tertiary);
    text-align: center;
    padding: 20px;
}

/* 淮安工厂区域 */
.factory-info {
    background-color: var(--color-bg-secondary);
    background-image: url('../images/航拍.jpg');
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
    position: relative;
    padding: 80px 0;
    min-height: 60vh;
}

.factory-info::before {
    content: '';
    position: absolute;
    inset: 0;
    background-color: rgba(0, 0, 0, 0.55);
    z-index: 0;
}

.factory-info .container {
    position: relative;
    z-index: 1;
}

.factory-info h3 {
    text-align: center;
    margin-bottom: 30px;
    color: var(--color-text-light);
}

.factory-content p {
    text-align: left;
    font-size: var(--font-size-base);
    line-height: var(--line-height-relaxed);
    margin-bottom: 0;
    color: var(--color-text-light);
}

/* Factory section card text contrast fixes */
.factory-info .factory-card { color: var(--color-text-primary); }
.factory-info .factory-card h3 { color: var(--color-text-primary); }
.factory-info .factory-card .factory-content p { color: var(--color-text-secondary); }

/* 研发情况区域 */
.rd-info {
    background-color: var(--color-bg-primary);
    padding: 60px 0;
}

.rd-info h3 {
    text-align: center;
    margin-bottom: 30px;
    color: var(--color-text-primary);
}

.rd-content p {
    text-align: left;
    font-size: var(--font-size-base);
    line-height: var(--line-height-relaxed);
    margin-bottom: 20px;
}

.rd-content p:last-child {
    margin-bottom: 0;
}

/* 质量控制区域 */
.quality-control {
    background-color: var(--color-bg-secondary);
    background-image: url('../images/Central Control Room.jpg');
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
    position: relative;
    padding: 80px 0;
    min-height: 60vh;
}

.quality-control::before {
    content: '';
    position: absolute;
    inset: 0;
    background-color: rgba(0, 0, 0, 0.55);
    z-index: 0;
}

.quality-control .container {
    position: relative;
    z-index: 1;
}

.quality-control h3 {
    text-align: center;
    margin-bottom: 30px;
    color: var(--color-text-light);
}

.qc-content p {
    text-align: left;
    font-size: var(--font-size-base);
    line-height: var(--line-height-relaxed);
    margin-bottom: 20px;
    color: var(--color-text-light);
}

.qc-content p:last-child {
    margin-bottom: 0;
}

/* 企业文化区域 */
.company-culture {
    background-color: var(--color-primary-lightest);
    padding: 60px 0;
}

.company-culture h3 {
    text-align: center;
    margin-bottom: 30px;
    color: var(--color-text-primary);
}

.culture-values {
    display: flex;
    justify-content: center;
}

.value-item {
    text-align: center;
    max-width: 500px;
    padding: 20px;
    background-color: var(--color-bg-primary);
    border-radius: 12px;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.05);
    border-left: 4px solid var(--color-primary);
}

.value-item h4 {
    margin-bottom: 15px;
    color: var(--color-primary-dark);
}

.value-item p {
    text-align: center;
    font-size: var(--font-size-lg);
    font-weight: 500;
    color: var(--color-text-primary);
    margin-bottom: 0;
}

/* 资质认证区域 */
.certifications {
    background-color: var(--color-bg-primary);
    padding: 60px 0;
}

.certifications h3 {
    text-align: center;
    margin-bottom: 40px;
    color: var(--color-text-primary);
}

.cert-list {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 20px;
}

.cert-item {
    padding: 15px 20px;
    background-color: var(--color-bg-tertiary);
    border-radius: 8px;
    text-align: center;
    font-weight: 500;
    transition: all 0.3s ease;
    border: 1px solid var(--color-border-light);
}

.cert-item:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 20px rgba(0, 0, 0, 0.08);
    border-color: var(--color-primary-light);
    background-color: var(--color-primary-lightest);
}

/* 公司工厂图片自适应样式 */
.company-factory-image {
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: center;
    border-radius: 0;
    display: block;
    transform: none;
    transition: transform var(--transition-standard);
}

/* 响应式调整 */
@media (max-width: 991px) {
    .intro-image {
        min-height: 350px;
    }
}

@media (max-width: 767px) {
    .intro-image {
        min-height: 360px;
    }
    .intro-text {
        margin-right: 0;
    }
}

@media (min-width: 992px) and (max-width: 1199px) {
  .intro-text {
    margin-right: -18%;
  }
}

@media (min-width: 1200px) {
  .intro-text {
    margin-right: -22%;
  }
}

@media (max-width: 575px) {
    .intro-image {
        min-height: 220px;
    }
}

@media (max-width: 767px) {
    .cert-list {
        grid-template-columns: 1fr;
        gap: 15px;
    }
    
    .intro-image {
        min-height: 200px;
    }
    
    .value-item {
        padding: 15px;
    }
}


/* 轮播控制按钮 */
.carousel-control {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    width: 48px;
    height: 48px;
    background-color: rgba(255, 255, 255, 0.95);
    border: 1px solid var(--color-border-light);
    border-radius: 50%;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 22px;
    color: var(--color-text-secondary);
    box-shadow: var(--shadow-md);
    transition: all var(--transition-standard);
    z-index: 10;
}

.carousel-control:hover {
    background-color: var(--color-primary);
    color: white;
    border-color: var(--color-primary);
    box-shadow: var(--shadow-lg);
    transform: translateY(-50%) scale(1.05);
}

.carousel-control.prev,
.cases-carousel .prev-btn {
    left: 16px;
}

.carousel-control.next,
.cases-carousel .next-btn {
    right: 16px;
}


/* 案例样式 */
.cases {
    background-color: var(--color-bg-tertiary);
}

.cases .carousel-container {
    margin-top: 30px;
}

.cases-carousel {
    position: relative;
    overflow: hidden;
    width: 100%;
    padding: 0 80px;
    --cases-gap: 30px;
}

.cases-carousel .carousel-track {
    display: flex;
    transition: transform 0.5s ease-in-out;
    width: 100%;
}

.cases-carousel .carousel-item {
    flex: 0 0 calc((100% - 60px) / 3);
    min-width: 0;
    width: calc((100% - 60px) / 3);
    margin-right: 30px;
    background-color: var(--color-bg-primary);
    padding: 30px;
    border-radius: 12px;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.05);
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    border: 1px solid var(--color-border-light);
    overflow: hidden;
    position: relative;
    display: flex;
    flex-direction: column;
}

.cases-carousel .carousel-item:hover {
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.08);
    border-color: var(--color-primary-light);
}

.cases-carousel .carousel-item h3 {
    font-size: var(--font-size-2xl);
    margin-bottom: 15px;
}

.cases-carousel .carousel-item p {
    font-size: var(--font-size-base);
    text-align: left;
    margin-bottom: 20px;
    color: var(--color-text-secondary);
    line-height: var(--line-height-relaxed);
}

.cases-carousel .carousel-item .card-tags { 
    margin-top: 8px; 
    margin-bottom: 12px; 
}

.cases-carousel .carousel-item .btn {
    margin-top: auto !important;
}

/* 案例轮播控制按钮特定样式 */
.cases-carousel .carousel-control {
    width: 52px;
    height: 52px;
    font-size: 24px;
}

/* 轮播指示器样式 */
.carousel-indicators {
    position: absolute;
    bottom: -40px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    gap: 10px;
}

/* 案例轮播指示器特定样式 */
.cases-carousel .carousel-indicators {
    gap: 12px;
}

.cases-carousel .indicator {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background-color: var(--color-border-medium);
    cursor: pointer;
    transition: all 0.3s ease;
}

.cases-carousel .indicator.active {
    background-color: var(--color-primary);
    width: 30px;
    border-radius: 6px;
}

/* 标签样式迁移至 tag.css */

/* Factory 作用域内的标签组间距 */
.factory-content {
    --factory-badge-gap-top: 20px;
}

.factory-content .badge-group {
    margin-top: var(--factory-badge-gap-top);
}

/* 响应式设计 */
@media (max-width: 1200px) {
    .cases-carousel .carousel-item {
        flex: 0 0 calc((100% - 30px) / 2);
        width: calc((100% - 30px) / 2);
        min-width: 0;
        margin-right: 30px;
    }
}

@media (max-width: 768px) {
    .cases-carousel .carousel-item {
        flex: 0 0 90%;
        width: 90%;
        min-width: 0;
        margin-right: 20px;
    }
    
    .cases-carousel .prev-btn {
        left: 8px;
    }
    
    .cases-carousel .next-btn {
        right: 8px;
    }
    
    .cases-carousel .carousel-indicators {
        bottom: -30px;
    }
    
    .cases-carousel .indicator {
        width: 10px;
        height: 10px;
    }
    
    .cases-carousel .indicator.active {
        width: 25px;
    }
}

@media (max-width: 480px) {
    .cases-carousel .carousel-item {
        flex: 0 0 100%;
        min-width: 100%;
        margin-right: 15px;
        padding: 20px;
    }
    
    .cases-carousel .carousel-item h3 {
        font-size: var(--font-size-xl);
    }
    
    .cases-carousel .carousel-item p {
        font-size: var(--font-size-sm);
    }
}

/* FAQ组件样式系统 */
/* FAQ 组件样式已抽离到独立文件 css/faq.css */

/* 添加图标 */
button#menu-toggle {
    background: none;
    border: none;
    cursor: pointer;
    padding: 10px;
}

/* 响应式设计系统 */

/* 超大屏幕 (1200px+) */
@media (min-width: 1200px) {
    .container {
        max-width: 1140px;
    }
}

/* 大屏幕 (992px - 1199px) */
@media (max-width: 1199px) {
    .container {
        width: 90%;
        max-width: 1008px;
    }
}