/* ============================================
   广州星合网络信息有限公司 官网样式表
   版本: 2.0.0
   描述: 简约科技商务风，深蓝色主色调+白色背景
   ============================================ */

/* ============================================
   CSS变量定义
   ============================================ */
:root {
    /* 主色调 - Logo深蓝色 */
    --primary-color: #0055FF;
    --primary-light: #3377ff;
    --primary-dark: #0044cc;
    --primary-gradient: linear-gradient(135deg, var(--primary-dark) 0%, var(--primary-color) 50%, var(--primary-light) 100%);

    /* 辅助色 - Logo橙黄色 */
    --accent-color: #FFB72B;
    --accent-light: #ffc94d;
    --accent-dark: #e6a326;

    /* 点缀色 - Logo青蓝色 */
    --highlight-color: #00F0F0;
    --highlight-light: #33f3f3;
    --highlight-dark: #00cccc;

    /* 中性色 */
    --text-white: #FFFFFF;
    --text-light-gray: #F5F7FA;
    --text-dark-gray: #333333;
    --text-color: #333333;
    --text-light: #666666;
    --text-muted: #999999;

    /* 背景色 */
    --bg-white: #FFFFFF;
    --bg-gray: #F5F7FA;
    --bg-light: #f8fafc;

    /* 边框色 */
    --border-color: #e6e9ec;
    --border-light: #d1d5db;

    /* 功能色 */
    --success-color: #00c853;
    --warning-color: #ff9800;

    /* 间距 */
    --section-padding: 80px 0;
    --container-max-width: 1200px;

    /* 过渡 */
    --transition-default: all 0.3s ease;
    --transition-slow: all 0.5s ease;
}

/* ============================================
   基础重置与全局样式
   ============================================ */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
    font-size: 16px;
    margin: 0;
    padding: 0;
}

body {
    margin: 0;
    padding: 0;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    color: var(--text-color);
    line-height: 1.7;
    background-color: var(--bg-white);
    overflow-x: hidden;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

main {
    flex: 1;
}

a {
    text-decoration: none;
    color: inherit;
    transition: var(--transition-default);
}

ul, ol {
    list-style: none;
}

img {
    max-width: 100%;
    height: auto;
    display: block;
}

button {
    cursor: pointer;
    border: none;
    outline: none;
    font-family: inherit;
}

input, textarea, select {
    font-family: inherit;
    font-size: inherit;
}

/* ============================================
   容器与布局
   ============================================ */
.container {
    width: 100%;
    max-width: var(--container-max-width);
    margin: 0 auto;
    padding: 0 20px;
}

.section {
    padding: var(--section-padding);
}

.section-title {
    text-align: center;
    margin-bottom: 60px;
}

.section-title h2 {
    font-size: 2.25rem;
    color: var(--primary-color);
    margin-bottom: 16px;
    font-weight: 700;
}

.section-title p {
    font-size: 1.125rem;
    color: var(--text-light);
    max-width: 600px;
    margin: 0 auto;
}

.product-section .section-title h2 {
    font-size: 28px;
}

.product-section .section-title p {
    font-size: 14px;
    color: #666666;
    margin-top: 12px;
}

/* ============================================
   导航栏样式
   ============================================ */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: var(--bg-white);
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.08);
    transition: var(--transition-default);
}

.navbar-container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 100px;
    max-width: var(--container-max-width);
    margin: 0 auto;
    padding: 0 20px;
}

.navbar-logo {
    display: flex;
    align-items: center;
    gap: 12px;
}

.navbar-logo img {
    height: 72px;
    width: auto;
    transform: translateX(-110px);
}

.navbar-logo-text {
    display: flex;
    flex-direction: column;
}

.navbar-logo-name {
    font-size: 1rem;
    font-weight: 700;
    color: var(--primary-color);
    line-height: 1.2;
}

.navbar-logo-slogan {
    font-size: 0.7rem;
    color: var(--text-light);
    letter-spacing: 0.5px;
}

.navbar-menu {
    display: flex;
    align-items: center;
    gap: 40px;
}

/* PC端隐藏移动端结构 */
.navbar-menu-header {
    display: none;
}

.navbar-menu-list {
    display: flex;
    align-items: center;
    gap: 40px;
}

.navbar-menu a {
    font-size: 0.9375rem;
    color: var(--text-color);
    font-weight: 500;
    padding: 8px 0;
    position: relative;
}

.navbar-menu a::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--accent-color);
    transition: var(--transition-default);
}

.navbar-menu a:hover::after,
.navbar-menu a.active::after {
    width: 100%;
}

.navbar-menu a:hover,
.navbar-menu a.active {
    color: var(--primary-color);
}

/* 汉堡菜单按钮 */
.navbar-toggle {
    display: none;
    flex-direction: column;
    justify-content: space-between;
    width: 28px;
    height: 20px;
    background: transparent;
    cursor: pointer;
}

.navbar-toggle span {
    display: block;
    width: 100%;
    height: 2px;
    background: var(--primary-color);
    border-radius: 2px;
    transition: var(--transition-default);
}

.navbar-toggle.active span:nth-child(1) {
    transform: rotate(45deg) translate(5px, 5px);
}

.navbar-toggle.active span:nth-child(2) {
    opacity: 0;
}

.navbar-toggle.active span:nth-child(3) {
    transform: rotate(-45deg) translate(5px, -5px);
}

/* ============================================
   Hero 轮播区域
   ============================================ */
.hero {
    position: relative;
    width: 100%;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: url(../images/hero-bg.jpg) center center / cover no-repeat;
    overflow: hidden;
    padding-top: 70px;
}

/* 背景遮罩 */
.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, rgba(0, 85, 255, 0.7) 0%, rgba(0, 68, 204, 0.8) 100%);
    pointer-events: none;
}

.hero-content {
    position: relative;
    z-index: 1;
    text-align: center;
    color: var(--bg-white);
    max-width: 900px;
    padding: 0 20px;
}

.hero-slogan {
    font-size: 3.5rem;
    font-weight: 800;
    line-height: 1.3;
    letter-spacing: 4px;
    color: var(--bg-white);
    margin-bottom: 48px;
}

.hero-desc {
    font-size: 1.125rem;
    color: rgba(255, 255, 255, 0.9);
    line-height: 1.8;
    max-width: 700px;
    margin: 0 auto 12px;
}

.hero-cta {
    display: inline-flex;
    align-items: center;
    gap: 12px;
    background: var(--accent-color);
    color: var(--text-dark-gray);
    padding: 18px 48px;
    border-radius: 50px;
    font-size: 1.125rem;
    font-weight: 600;
    transition: var(--transition-default);
    margin-top: 50px;
}

.hero-cta:hover {
    background: var(--accent-light);
    transform: translateY(-3px);
    box-shadow: 0 15px 40px rgba(255, 183, 43, 0.4);
}

.hero-cta svg {
    width: 20px;
    height: 20px;
    fill: currentColor;
}

/* 装饰元素 */
.hero-decoration {
    position: absolute;
    width: 400px;
    height: 400px;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(0, 85, 255, 0.12) 0%, transparent 70%);
    pointer-events: none;
}

.hero-decoration-1 {
    top: -100px;
    right: -100px;
}

.hero-decoration-2 {
    bottom: -150px;
    left: -150px;
}

/* ============================================
   关于我们 - 左文右图
   ============================================ */
.about-section {
    background: var(--bg-white);
    padding: 100px 0;
}

/* 沉浸式公司简介Hero区域 */
.about-hero {
    position: relative;
    min-height: 600px;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 80px 20px;
}

.about-hero-bg {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    overflow: hidden;
    background: linear-gradient(135deg, var(--bg-gray) 0%, #e8ecf1 100%);
}

.about-hero-img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: center;
}

.about-hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(255, 255, 255, 0.25);
}

.about-hero-content {
    position: relative;
    z-index: 1;
    width: 100%;
    max-width: 900px;
    text-align: center;
}

.about-hero-content .section-title {
    margin-bottom: 40px;
}

.about-hero-content .section-title h2 {
    color: var(--primary-color);
}

.about-intro-card {
    background: rgba(255, 255, 255, 0.92);
    border-radius: 20px;
    padding: 48px 56px;
    box-shadow: 0 12px 48px rgba(0, 0, 0, 0.1);
    max-width: 800px;
    margin: 0 auto;
}

.about-intro-text {
    color: var(--text-dark-gray);
    font-size: 1rem;
    line-height: 1.9;
    margin-bottom: 20px;
    text-align: left;
}

.about-intro-text:last-of-type {
    margin-bottom: 28px;
}

.about-slogan {
    font-size: 1.375rem;
    color: var(--accent-color);
    font-weight: 700;
    margin-bottom: 16px;
    text-align: center;
}

.about-business {
    font-size: 0.9375rem;
    color: var(--text-muted);
    text-align: center;
    margin-bottom: 28px;
}

.about-card-logo {
    text-align: center;
    padding-top: 20px;
    border-top: 1px solid var(--border-color);
}

.about-card-logo img {
    height: 36px;
    width: auto;
    opacity: 0.7;
}

/* 核心价值观 - 左右分栏布局 */
.values-section {
    background: var(--bg-white);
    padding: 80px 0;
}

.values-list {
    max-width: 900px;
    margin: 0 auto;
}

.value-item {
    display: flex;
    align-items: center;
    padding: 36px 0;
    border-bottom: 1px solid var(--border-color);
}

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

.value-left {
    width: 40%;
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    padding-right: 40px;
}

.value-icon {
    width: 72px;
    height: 72px;
    background: linear-gradient(135deg, rgba(0, 85, 255, 0.08) 0%, rgba(0, 85, 255, 0.12) 100%);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 16px;
}

.value-icon svg {
    width: 32px;
    height: 32px;
    fill: var(--primary-color);
}

.value-title {
    font-size: 1.25rem;
    color: var(--primary-color);
    font-weight: 700;
}

.value-right {
    width: 60%;
    padding-left: 40px;
    border-left: 1px solid var(--border-color);
}

.value-desc {
    color: var(--text-dark-gray);
    font-size: 1rem;
    line-height: 1.8;
}

/* 团队风采 - 横向滑动画廊 */
.gallery-section {
    background: var(--bg-gray);
    padding: 80px 0;
}

.gallery-slider {
    position: relative;
    max-width: 1000px;
    margin: 0 auto;
    overflow: hidden;
    border-radius: 16px;
}

.gallery-track {
    display: flex;
    transition: transform 0.4s ease;
}

.gallery-slide {
    flex: 0 0 100%;
    position: relative;
}

.gallery-image-wrapper {
    position: relative;
    aspect-ratio: 16 / 9;
    overflow: hidden;
    border-radius: 16px;
}

.gallery-image {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.4s ease;
}

.gallery-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(255, 255, 255, 0.15);
    transition: opacity 0.3s ease;
}

.gallery-slide:hover .gallery-overlay {
    opacity: 0;
}

.gallery-slide:hover .gallery-image {
    transform: scale(1.02);
}

.gallery-caption {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    padding: 20px;
    background: linear-gradient(transparent, rgba(0, 0, 0, 0.5));
    opacity: 0;
    transition: opacity 0.3s ease;
}

.gallery-slide:hover .gallery-caption {
    opacity: 1;
}

.gallery-caption p {
    color: #fff;
    font-size: 0.9375rem;
    font-weight: 500;
    text-align: center;
}

.gallery-arrow {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    width: 48px;
    height: 48px;
    background: rgba(255, 255, 255, 0.3);
    border: none;
    border-radius: 50%;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.3s ease;
    backdrop-filter: blur(4px);
    z-index: 2;
}

.gallery-arrow svg {
    width: 24px;
    height: 24px;
    fill: #fff;
}

.gallery-arrow:hover {
    background: rgba(255, 255, 255, 0.6);
}

.gallery-arrow-left {
    left: 16px;
}

.gallery-arrow-right {
    right: 16px;
}

.gallery-dots {
    display: flex;
    justify-content: center;
    gap: 10px;
    margin-top: 20px;
}

.gallery-dot {
    width: 10px;
    height: 10px;
    background: var(--border-light);
    border-radius: 50%;
    cursor: pointer;
    transition: all 0.3s ease;
}

.gallery-dot.active {
    background: var(--primary-color);
    transform: scale(1.2);
}

.gallery-dot:hover {
    background: var(--primary-light);
}

.about-content {
    max-width: 1000px;
    margin: 0 auto 60px;
}

.about-text {
    text-align: center;
    margin-bottom: 40px;
}

.about-text h2 {
    font-size: 2.75rem;
    color: var(--primary-color);
    margin-bottom: 32px;
    font-weight: 800;
    letter-spacing: 2px;
}

.about-intro {
    color: var(--text-light);
    margin-bottom: 24px;
    line-height: 1.8;
    font-size: 1.0625rem;
}

.about-intro .highlight {
    color: var(--accent-color);
    font-weight: 700;
}

.about-values {
    display: flex;
    flex-direction: column;
    gap: 20px;
    max-width: 1000px;
    margin: 0 auto;
}

.about-value-item {
    display: flex;
    align-items: center;
    gap: 20px;
    padding: 24px;
    background: var(--bg-gray);
    border-radius: 12px;
    transition: var(--transition-default);
    text-align: left;
}

.about-value-item:hover {
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.08);
    transform: translateY(-2px);
}

.about-value-icon {
    width: 56px;
    height: 56px;
    background: linear-gradient(135deg, var(--primary-color), var(--highlight-color));
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.about-value-icon svg {
    width: 28px;
    height: 28px;
    fill: var(--bg-white);
}

.about-value-content h4 {
    font-size: 1.125rem;
    color: var(--primary-color);
    margin-bottom: 6px;
    font-weight: 700;
}

.about-value-content p {
    font-size: 0.9375rem;
    color: var(--text-light);
    line-height: 1.6;
}


/* ============================================
   产品展示区
   ============================================ */
.product-section {
    background: var(--bg-gray);
    padding: 80px 0;
    width: 100vw;
    margin-left: calc(50% - 50vw);
    margin-right: calc(50% - 50vw);
}

.products-grid {
    display: grid;
    grid-template-columns: 1.5fr 1fr;
    gap: 28px;
    width: 100%;
    align-items: stretch;
}

/* 主产品竖版大卡片 */
.product-main-card {
    background: linear-gradient(180deg, rgba(0, 85, 255, 0.03) 0%, rgba(0, 85, 255, 0.08) 100%);
    border: 1px solid rgba(0, 85, 255, 0.12);
    border-radius: 16px;
    overflow: hidden;
    box-shadow: 0 4px 24px rgba(0, 85, 255, 0.06);
    display: flex;
    flex-direction: column;
    transition: var(--transition-default);
}

.product-main-card:hover {
    box-shadow: 0 8px 32px rgba(0, 85, 255, 0.1);
    transform: translateY(-2px);
}

.product-main-image {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 48px 32px 32px;
    background: transparent;
}

.product-main-image .product-logo-wrapper {
    background: #fff;
    border: 1px solid rgba(0, 85, 255, 0.1);
    border-radius: 16px;
    margin-bottom: 12px;
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.04);
    padding: 20px 40px;
}

.product-main-image .product-logo-img {
    filter: none;
}

.product-main-image .product-logo-text {
    color: var(--text-light);
    font-size: 14px;
}

.product-main-content {
    padding: 28px 32px 32px;
    flex: 1;
    display: flex;
    flex-direction: column;
    text-align: center;
    align-items: center;
}

.product-main-content h3 {
    font-size: 26px;
    color: var(--text-dark-gray);
    margin-bottom: 12px;
    font-weight: 700;
}

.product-desc {
    color: var(--text-light);
    font-size: 15px;
    line-height: 1.7;
    margin-bottom: 20px;
}

.product-main-content .product-features {
    margin-bottom: 20px;
    justify-content: center;
}

.product-main-content .product-feature-tag {
    background: rgba(255, 183, 43, 0.12);
    color: var(--accent-dark);
    border: 1px solid rgba(255, 183, 43, 0.2);
}

.product-main-content .product-feature-tag:hover {
    background: var(--accent-color);
    color: var(--text-white);
}

.product-main-content .product-link {
    background: var(--accent-color);
    color: var(--text-white);
    align-self: center;
}

.product-main-content .product-link:hover {
    background: var(--accent-dark);
    box-shadow: 0 4px 16px rgba(255, 183, 43, 0.3);
}

.product-brand-text {
    margin-top: auto;
    padding-top: 16px;
    font-size: 13px;
    color: var(--text-muted);
    border-top: 1px solid var(--border-color);
}

/* 产品模块包装器 */
.products-wrapper {
    max-width: 1200px;
    margin: 32px auto 0;
    width: 100%;
}

/* 产品底部文案 */
.products-footer-text {
    text-align: center;
    margin-top: 24px;
    font-size: 13px;
    color: var(--text-muted);
    letter-spacing: 0.5px;
}

/* 未来产品矩阵 */
.product-matrix {
    display: flex;
    flex-direction: column;
}

.product-matrix-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    grid-template-rows: 1fr 1fr;
    gap: 20px;
    flex: 1;
}

.matrix-card {
    background: #fff;
    border: 1px solid rgba(0, 85, 255, 0.1);
    border-radius: 16px;
    padding: 24px 20px;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    text-align: center;
    transition: var(--transition-default);
    box-shadow: 0 4px 16px rgba(0, 85, 255, 0.04);
}

.matrix-card:hover {
    border-color: rgba(0, 85, 255, 0.25);
    box-shadow: 0 6px 24px rgba(0, 85, 255, 0.1);
    transform: translateY(-2px);
}

.matrix-icon {
    width: 52px;
    height: 52px;
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-light) 100%);
    border-radius: 14px;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    box-shadow: 0 4px 14px rgba(0, 85, 255, 0.2);
    margin-bottom: 14px;
}

.matrix-icon svg {
    width: 26px;
    height: 26px;
    fill: #fff;
}

.matrix-text {
    flex: 1;
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.matrix-name {
    font-size: 15px;
    font-weight: 600;
    color: var(--text-dark-gray);
    margin: 0 0 6px 0;
}

.matrix-status {
    font-size: 12px;
    color: var(--primary-color);
    margin: 0;
    padding: 0;
    background: none;
    border: none;
    border-radius: 0;
}

.matrix-footer-text {
    text-align: center;
    margin-top: 20px;
    font-size: 13px;
    color: var(--text-muted);
    flex-shrink: 0;
}

.product-card {
    background: var(--bg-white);
    border-radius: 8px;
    overflow: hidden;
    box-shadow: 0 4px 20px rgba(0, 85, 255, 0.08);
    transition: var(--transition-default);
    display: flex;
    flex-direction: column;
}

.product-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 12px 32px rgba(0, 85, 255, 0.12);
}

.product-image {
    background: var(--bg-white);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 40px 24px;
    min-height: 240px;
}

.product-logo-wrapper {
    background: var(--bg-white);
    border: 2px solid var(--bg-gray);
    border-radius: 16px;
    padding: 20px 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 16px;
    min-height: 100px;
}

.product-logo-img {
    max-width: 180px;
    max-height: 100px;
    object-fit: contain;
}

.product-logo-text {
    font-size: 16px;
    color: #666666;
    margin: 0;
}

.product-content {
    padding: 32px;
    flex: 1;
    display: flex;
    flex-direction: column;
}

.product-content h3 {
    font-size: 22px;
    color: var(--primary-color);
    margin-bottom: 12px;
    font-weight: 700;
}

.product-content p {
    color: var(--text-light);
    font-size: 0.9375rem;
    line-height: 1.6;
    margin-bottom: 20px;
}

.product-features {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    margin-bottom: 20px;
}

.product-feature-tag {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    background: rgba(255, 183, 43, 0.15);
    color: var(--accent-dark);
    padding: 6px 14px;
    border-radius: 20px;
    font-size: 0.8125rem;
    font-weight: 500;
    transition: var(--transition-default);
}

.product-feature-tag:hover {
    background: var(--accent-color);
    color: var(--text-white);
}

.product-feature-tag svg {
    width: 14px;
    height: 14px;
    fill: currentColor;
}

.product-link {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: var(--accent-color);
    color: var(--text-white);
    padding: 12px 24px;
    border-radius: 6px;
    font-size: 0.9375rem;
    font-weight: 600;
    transition: var(--transition-default);
    margin-top: auto;
    align-self: flex-start;
}

.product-link:hover {
    background: #e6a500;
    box-shadow: 0 4px 12px rgba(255, 183, 43, 0.3);
}

.product-link svg {
    width: 18px;
    height: 18px;
    fill: currentColor;
}

/* 空产品位 */
.product-card-empty {
    background: var(--bg-white);
    border-radius: 8px;
    box-shadow: 0 4px 20px rgba(0, 85, 255, 0.08);
    display: flex;
    flex-direction: column;
}

.product-card-empty .product-image {
    background: var(--bg-white);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 40px 24px;
    min-height: 240px;
}

.product-empty-icon {
    width: 80px;
    height: 80px;
    background: var(--bg-gray);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 16px;
}

.product-empty-icon svg {
    width: 40px;
    height: 40px;
    fill: #aaaaaa;
}

.product-card-empty .product-logo-text {
    font-size: 16px;
    color: #999999;
    margin: 0 0 8px 0;
}

.product-empty-text {
    font-size: 14px;
    color: #cccccc;
    margin: 0;
}

.product-card-empty .product-content {
    padding: 32px;
    flex: 1;
    min-height: 200px;
}

.product-card-empty h3,
.product-card-empty p,
.product-card-empty .product-features {
    visibility: hidden;
    height: 0;
    margin: 0;
    padding: 0;
}

/* ============================================
   企业优势展示区
   ============================================ */
.advantages-section {
    background: var(--bg-white);
    padding: 80px 0;
    width: 100vw;
    margin-left: calc(50% - 50vw);
    margin-right: calc(50% - 50vw);
}

.advantages-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 30px;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    width: 100%;
}

.advantage-card {
    text-align: center;
    padding: 40px 24px;
    background: var(--bg-gray);
    border-radius: 16px;
    transition: var(--transition-default);
}

.advantage-card:hover {
    background: var(--primary-color);
    transform: translateY(-5px);
}

.advantage-card:hover .advantage-icon {
    background: rgba(255, 255, 255, 0.2);
}

.advantage-card:hover .advantage-icon svg {
    fill: var(--bg-white);
}

.advantage-card:hover h3,
.advantage-card:hover p {
    color: var(--bg-white);
}

.advantage-icon {
    width: 72px;
    height: 72px;
    background: rgba(0, 85, 255, 0.08);
    border-radius: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 24px;
    transition: var(--transition-default);
}

.advantage-icon svg {
    width: 36px;
    height: 36px;
    fill: var(--primary-color);
    transition: var(--transition-default);
}

.advantage-card h3 {
    font-size: 1.125rem;
    color: var(--primary-color);
    margin-bottom: 12px;
    font-weight: 600;
    transition: var(--transition-default);
}

.advantage-card p {
    font-size: 0.875rem;
    color: var(--text-light);
    line-height: 1.6;
    transition: var(--transition-default);
}

/* ============================================
   联系信息展示区 - 沉浸式背景+悬浮卡片
   ============================================ */
.contact-hero {
    position: relative;
    padding: 80px 20px;
    min-height: 600px;
}

.contact-hero-bg {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, #e8f0fe 0%, #d4e4ff 50%, #e0ebff 100%);
    background-image:
        radial-gradient(circle at 25px 25px, rgba(0, 85, 255, 0.03) 2px, transparent 2px),
        radial-gradient(circle at 75px 75px, rgba(0, 85, 255, 0.03) 2px, transparent 2px);
    background-size: 100px 100px;
}

.contact-hero-content {
    position: relative;
    z-index: 1;
    max-width: 1000px;
    margin: 0 auto;
}

.contact-hero-content .section-title {
    margin-bottom: 48px;
}

.contact-cards {
    display: grid;
    grid-template-columns: 1fr 1.2fr;
    gap: 32px;
}

.contact-info-card {
    background: linear-gradient(135deg, var(--primary-color) 0%, #3377ff 100%);
    border-radius: 20px;
    padding: 40px 36px;
    color: #fff;
    box-shadow: 0 12px 40px rgba(0, 85, 255, 0.25);
    transition: all 0.3s ease;
}

.contact-info-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 16px 48px rgba(0, 85, 255, 0.3);
}

.contact-info-header {
    margin-bottom: 32px;
    padding-bottom: 24px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.2);
}

.contact-info-header h3 {
    font-size: 1.5rem;
    font-weight: 700;
    color: #fff;
}

.contact-info-list {
    display: flex;
    flex-direction: column;
    gap: 24px;
}

.contact-info-item {
    display: flex;
    align-items: flex-start;
    gap: 16px;
    padding-bottom: 24px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.contact-info-item:last-child {
    border-bottom: none;
    padding-bottom: 0;
}

.contact-info-icon {
    width: 44px;
    height: 44px;
    background: rgba(255, 183, 43, 0.2);
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.contact-info-icon svg {
    width: 22px;
    height: 22px;
    fill: var(--accent-color);
}

.contact-info-text {
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.contact-info-label {
    font-size: 0.8125rem;
    color: rgba(255, 255, 255, 0.7);
}

.contact-info-value {
    font-size: 1rem;
    color: #fff;
    font-weight: 500;
}

.contact-form-card {
    background: rgba(255, 255, 255, 0.95);
    border-radius: 20px;
    padding: 40px 36px;
    box-shadow: 0 12px 40px rgba(0, 0, 0, 0.08);
    transition: all 0.3s ease;
}

.contact-form-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 16px 48px rgba(0, 0, 0, 0.12);
}

.contact-form-header {
    margin-bottom: 28px;
}

.contact-form-header h3 {
    font-size: 1.375rem;
    color: var(--primary-color);
    font-weight: 700;
    margin-bottom: 6px;
}

.contact-form-header p {
    font-size: 0.875rem;
    color: var(--text-muted);
}

.contact-form {
    display: flex;
    flex-direction: column;
    gap: 18px;
}

.contact-form .form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 18px;
}

.contact-form .form-group {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.contact-form .form-group label {
    font-size: 0.875rem;
    color: var(--text-dark-gray);
    font-weight: 500;
}

.contact-form .form-group input,
.contact-form .form-group textarea {
    padding: 14px 16px;
    border: 1px solid var(--border-color);
    border-radius: 10px;
    font-size: 0.9375rem;
    transition: var(--transition-default);
    background: var(--bg-white);
}

.contact-form .form-group input:focus,
.contact-form .form-group textarea:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(0, 85, 255, 0.1);
}

.contact-form .form-group textarea {
    min-height: 100px;
    resize: vertical;
}

.contact-form .form-submit {
    background: var(--accent-color);
    color: #fff;
    padding: 16px 32px;
    border-radius: 10px;
    font-size: 1rem;
    font-weight: 600;
    transition: var(--transition-default);
    width: 100%;
    border: none;
    cursor: pointer;
}

.contact-form .form-submit:hover {
    background: var(--accent-dark);
    box-shadow: 0 4px 20px rgba(255, 183, 43, 0.35);
}

/* 地图区域 */
.map-section {
    width: 100%;
    height: 400px;
    background: var(--bg-light);
    display: flex;
    align-items: center;
    justify-content: center;
}

.map-placeholder {
    text-align: center;
    color: var(--text-light);
}

.map-placeholder svg {
    width: 60px;
    height: 60px;
    fill: var(--border-light);
    margin-bottom: 16px;
}

.map-placeholder p {
    font-size: 0.9375rem;
    margin-bottom: 8px;
}

.map-placeholder span {
    font-size: 0.8125rem;
    opacity: 0.7;
}

/* 公司地址 - 嵌入式地图卡片 */
.address-section {
    background: var(--bg-white);
    padding: 80px 0;
}

.address-wrapper {
    max-width: 800px;
    margin: 0 auto;
    text-align: center;
}

.address-title {
    font-size: 2rem;
    color: var(--primary-color);
    font-weight: 700;
    margin-bottom: 40px;
}

.address-map-card {
    background: #fff;
    border-radius: 16px;
    overflow: hidden;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.08);
    border: 1px solid var(--border-color);
    transition: all 0.3s ease;
    margin-bottom: 32px;
}

.address-map-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 12px 40px rgba(0, 0, 0, 0.12);
}

.address-map-img {
    width: 100%;
    height: auto;
    display: block;
}

.address-detail {
    font-size: 1.0625rem;
    color: var(--text-dark-gray);
    margin-bottom: 28px;
    line-height: 1.6;
}

.address-buttons {
    display: flex;
    justify-content: center;
    gap: 16px;
}

.address-btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 12px 24px;
    border-radius: 8px;
    font-size: 0.9375rem;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.3s ease;
    text-decoration: none;
    border: none;
}

.address-btn svg {
    width: 18px;
    height: 18px;
    fill: currentColor;
}

.address-btn-copy {
    background: var(--bg-gray);
    color: var(--text-dark-gray);
}

.address-btn-copy:hover {
    background: var(--border-color);
}

.address-btn-navigate {
    background: var(--accent-color);
    color: #fff;
}

.address-btn-navigate:hover {
    background: var(--accent-dark);
    box-shadow: 0 4px 16px rgba(255, 183, 43, 0.3);
}

/* ============================================
   产品详情页面
   ============================================ */
.product-detail-section {
    background: var(--bg-white);
}

.product-detail-header {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
    margin-bottom: 60px;
}

.product-detail-image {
    border-radius: 16px;
    overflow: hidden;
    background: var(--bg-gray);
    aspect-ratio: 16/10;
    display: flex;
    align-items: center;
    justify-content: center;
}

.product-detail-logo-wrapper {
    width: 320px;
    height: 200px;
    background: var(--bg-white);
    border-radius: 12px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 24px;
}

.product-detail-logo {
    max-width: 100%;
    max-height: 100%;
    object-fit: contain;
}

.product-detail-info h2 {
    font-size: 2rem;
    color: var(--primary-color);
    margin-bottom: 16px;
    font-weight: 700;
}

.product-detail-info > p {
    color: var(--text-light);
    font-size: 1rem;
    line-height: 1.8;
    margin-bottom: 24px;
}

.product-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    margin-bottom: 32px;
}

.product-tag {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: rgba(0, 240, 240, 0.1);
    color: var(--highlight-dark);
    font-weight: 500;
    padding: 8px 18px;
    border-radius: 24px;
    font-size: 0.875rem;
}

.product-tag svg {
    width: 16px;
    height: 16px;
    fill: currentColor;
}

.product-features-detail {
    background: var(--bg-gray);
    padding: 60px;
    border-radius: 16px;
    margin-bottom: 60px;
}

.product-features-detail h3 {
    font-size: 1.5rem;
    color: var(--primary-color);
    margin-bottom: 40px;
    font-weight: 700;
    text-align: center;
}

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

.feature-item {
    text-align: center;
    padding: 32px 24px;
    background: var(--bg-white);
    border-radius: 12px;
    transition: var(--transition-default);
}

.feature-item:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.08);
}

.feature-icon {
    width: 64px;
    height: 64px;
    background: rgba(0, 85, 255, 0.08);
    border-radius: 14px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 20px;
}

.feature-icon svg {
    width: 32px;
    height: 32px;
    fill: var(--primary-color);
}

.feature-item h4 {
    font-size: 1.0625rem;
    color: var(--primary-color);
    margin-bottom: 10px;
    font-weight: 600;
}

.feature-item p {
    font-size: 0.875rem;
    color: var(--text-light);
    line-height: 1.6;
}

.product-business-model {
    background: var(--primary-gradient);
    padding: 60px;
    border-radius: 16px;
    color: var(--bg-white);
    text-align: center;
}

.product-business-model h3 {
    font-size: 1.75rem;
    margin-bottom: 20px;
    font-weight: 700;
}

.product-business-model > p {
    font-size: 1.0625rem;
    opacity: 0.9;
    max-width: 700px;
    margin: 0 auto 40px;
    line-height: 1.7;
}

.business-tags {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: 16px;
}

.business-tag {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: rgba(255, 255, 255, 0.15);
    padding: 12px 24px;
    border-radius: 30px;
    font-size: 0.9375rem;
    font-weight: 500;
}

.business-tag svg {
    width: 18px;
    height: 18px;
    fill: var(--accent-color);
}

/* ============================================
   页脚样式 - 极简单栏方案
   ============================================ */
.footer {
    background: var(--primary-gradient);
    color: var(--bg-white);
    padding: 60px 20px 32px;
    width: 100%;
    margin-top: auto;
}

.footer-inner {
    max-width: 800px;
    margin: 0 auto;
    text-align: center;
}

.footer-logo {
    margin-bottom: 24px;
}

.footer-logo img {
    height: 44px;
    width: auto;
    filter: brightness(0) invert(1);
    opacity: 0.95;
}

.footer-company {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--bg-white);
    margin-bottom: 12px;
}

.footer-slogan {
    font-size: 1rem;
    color: var(--accent-color);
    margin-bottom: 16px;
}

.footer-desc {
    color: rgba(255, 255, 255, 0.65);
    line-height: 1.8;
    margin-bottom: 28px;
    font-size: 0.9375rem;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

.footer-contact {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 12px;
    margin-bottom: 32px;
}

.footer-contact-item {
    display: flex;
    align-items: center;
    gap: 10px;
    color: rgba(255, 255, 255, 0.85);
    font-size: 0.9375rem;
}

.footer-contact-item svg {
    width: 18px;
    height: 18px;
    fill: var(--accent-color);
    flex-shrink: 0;
}

.footer-divider {
    height: 1px;
    background: rgba(255, 255, 255, 0.15);
    margin: 28px auto 24px;
    max-width: 600px;
}

.footer-copyright {
    font-size: 0.8125rem;
    color: rgba(255, 255, 255, 0.45);
}

.footer-copyright a {
    color: rgba(255, 255, 255, 0.55);
}

.footer-copyright a:hover {
    color: var(--bg-white);
}

/* ============================================
   页面通用样式
   ============================================ */
.page-header {
    background: var(--primary-gradient);
    padding: 160px 0 80px;
    text-align: center;
    color: var(--bg-white);
}

.page-header h1 {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 16px;
}

.page-header p {
    font-size: 1.125rem;
    opacity: 0.85;
    max-width: 600px;
    margin: 0 auto;
    line-height: 1.7;
}

.breadcrumb {
    display: flex;
    justify-content: center;
    gap: 12px;
    margin-top: 24px;
    font-size: 0.9375rem;
    opacity: 0.7;
}

.breadcrumb a:hover {
    opacity: 1;
}

.breadcrumb span {
    opacity: 0.5;
}

/* ============================================
   动画关键帧
   ============================================ */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.fade-in-up {
    animation: fadeInUp 0.8s ease forwards;
}

/* ============================================
   响应式设计
   ============================================ */

/* 平板端 */
@media (max-width: 1024px) {
    .navbar-menu {
        gap: 24px;
    }

    .hero-slogan {
        font-size: 2.75rem;
    }

    .about-content {
        gap: 40px;
    }

    .products-grid {
        gap: 30px;
    }

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

    .contact-wrapper {
        gap: 40px;
    }

    .product-detail-header {
        gap: 40px;
    }

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

/* 移动端 */
@media (max-width: 768px) {
    /* 侧边遮罩层 */
    .navbar-overlay {
        position: fixed;
        top: 0;
        left: 0;
        right: 0;
        bottom: 0;
        background: rgba(0, 0, 0, 0.4);
        opacity: 0;
        visibility: hidden;
        transition: opacity 0.3s ease, visibility 0.3s ease;
        z-index: 998;
    }

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

    .navbar-menu {
        position: fixed;
        top: 0;
        right: 0;
        width: 70%;
        height: 100vh;
        background: #fff;
        flex-direction: column;
        padding: 0;
        gap: 0;
        box-shadow: -4px 0 24px rgba(0, 0, 0, 0.08);
        transform: translateX(100%);
        opacity: 0;
        visibility: hidden;
        transition: transform 0.3s ease, opacity 0.3s ease, visibility 0.3s ease;
        z-index: 999;
    }

    .navbar-menu.active {
        transform: translateX(0);
        opacity: 1;
        visibility: visible;
    }

    /* 菜单项列表 */
    .navbar-menu-list {
        display: flex;
        flex-direction: column;
        padding: 16px 0;
    }

    .navbar-menu a {
        padding: 18px 24px;
        border-bottom: none;
        width: 100%;
        text-align: center;
        font-size: 1.0625rem;
        color: var(--text-dark-gray);
        background: transparent;
        transition: color 0.2s ease;
    }

    .navbar-menu a:hover {
        color: var(--primary-color);
    }

    .navbar-menu a.active {
        color: var(--primary-color);
        font-weight: 600;
    }

    .navbar-menu a::after {
        display: none;
    }

    .navbar-toggle {
        display: flex;
        z-index: 1000;
    }

    .navbar-container {
        height: 70px;
        padding: 0 16px;
    }

    .navbar-logo img {
        height: 48px;
        transform: translateX(0);
    }

    .hero {
        min-height: auto;
        padding: 90px 0 60px;
    }

    .hero-slogan {
        font-size: 1.75rem;
        letter-spacing: 2px;
        margin-bottom: 32px;
    }

    .hero-desc {
        font-size: 1rem;
    }

    .hero-cta {
        padding: 14px 36px;
        font-size: 1rem;
        margin-top: 40px;
    }

    .section {
        padding: 60px 0;
    }

    .section-title h2 {
        font-size: 1.75rem;
    }

    .about-content {
        margin-bottom: 40px;
        padding: 0;
    }

    .about-text h2 {
        font-size: 2rem;
        margin-bottom: 24px;
    }

    .about-values {
        margin-top: 0;
        padding: 0 20px;
    }

    .about-value-item {
        padding: 20px;
    }

    .about-gallery {
        padding: 0 20px;
    }

    .values-section {
        padding: 60px 0;
    }

    .gallery-section {
        padding: 60px 0;
    }

    .gallery-slider {
        border-radius: 12px;
    }

    .gallery-image-wrapper {
        border-radius: 12px;
    }

    .gallery-arrow {
        width: 40px;
        height: 40px;
    }

    .gallery-arrow svg {
        width: 20px;
        height: 20px;
    }

    .gallery-caption p {
        font-size: 0.875rem;
    }

    .value-item {
        flex-direction: column;
        padding: 32px 0;
        gap: 24px;
    }

    .value-left {
        width: 100%;
        flex-direction: row;
        align-items: center;
        padding-right: 0;
        gap: 20px;
    }

    .value-icon {
        width: 56px;
        height: 56px;
        margin-bottom: 0;
        flex-shrink: 0;
    }

    .value-icon svg {
        width: 26px;
        height: 26px;
    }

    .value-title {
        font-size: 1.125rem;
    }

    .value-right {
        width: 100%;
        padding-left: 76px;
        border-left: none;
        padding-top: 0;
    }

    .value-desc {
        font-size: 0.9375rem;
    }

    .about-hero {
        min-height: 500px;
        padding: 60px 20px;
    }

    .about-hero-content .section-title {
        margin-bottom: 32px;
    }

    .about-intro-card {
        padding: 36px 32px;
    }

    .about-intro-text {
        font-size: 0.9375rem;
        line-height: 1.8;
    }

    .about-slogan {
        font-size: 1.25rem;
    }

    .about-business {
        font-size: 0.875rem;
    }

    /* 768px公司地址 */
    .address-section {
        padding: 60px 0;
    }

    .address-title {
        font-size: 1.75rem;
        margin-bottom: 32px;
    }

    .address-map-card {
        margin-bottom: 28px;
    }

    .address-detail {
        font-size: 1rem;
        margin-bottom: 24px;
    }

    /* 768px联系方式 */
    .contact-hero {
        padding: 60px 20px;
    }

    .contact-cards {
        grid-template-columns: 1fr;
        gap: 24px;
    }

    .contact-info-card {
        padding: 32px 28px;
    }

    .contact-info-header {
        margin-bottom: 24px;
        padding-bottom: 20px;
    }

    .contact-info-list {
        gap: 20px;
    }

    .contact-info-item {
        padding-bottom: 20px;
    }

    .contact-form-card {
        padding: 32px 28px;
    }

    .contact-form .form-row {
        grid-template-columns: 1fr;
        gap: 18px;
    }

    .products-wrapper {
        margin-top: 24px;
    }

    .products-grid {
        grid-template-columns: 1fr;
        gap: 24px;
    }

    .product-main-card {
        min-height: auto;
    }

    .product-main-image {
        padding: 32px 24px 20px;
    }

    .product-main-image .product-logo-wrapper {
        padding: 16px 32px;
    }

    .product-main-content {
        padding: 24px;
    }

    .product-main-content h3 {
        font-size: 24px;
    }

    .product-desc {
        font-size: 14px;
    }

    .product-main-content .product-features {
        flex-wrap: wrap;
    }

    .product-matrix-grid {
        grid-template-columns: 1fr 1fr;
        gap: 16px;
    }

    .matrix-card {
        padding: 20px 16px;
        flex-direction: column;
        gap: 12px;
    }

    .matrix-icon {
        width: 44px;
        height: 44px;
        margin-bottom: 0;
    }

    .matrix-icon svg {
        width: 22px;
        height: 22px;
    }

    .matrix-name {
        font-size: 14px;
    }

    .products-footer-text {
        margin-top: 20px;
        font-size: 12px;
    }

    .advantages-grid {
        grid-template-columns: 1fr;
        gap: 20px;
    }

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

    .contact-wrapper {
        grid-template-columns: 1fr;
    }

    .contact-info,
    .contact-form-wrapper {
        padding: 32px;
    }

    .form-row {
        grid-template-columns: 1fr;
    }

    .footer {
        padding: 48px 20px 28px;
    }

    .footer-logo img {
        height: 40px;
    }

    .footer-company {
        font-size: 1.125rem;
    }

    .footer-slogan {
        font-size: 0.9375rem;
    }

    .footer-desc {
        font-size: 0.875rem;
        padding: 0 20px;
    }

    .footer-contact {
        gap: 10px;
    }

    .footer-contact-item {
        font-size: 0.875rem;
    }

    .page-header {
        padding: 130px 0 60px;
    }

    .page-header h1 {
        font-size: 1.875rem;
    }

    .product-detail-header {
        grid-template-columns: 1fr;
        gap: 30px;
    }

    .product-features-detail {
        padding: 40px 24px;
    }

    .features-grid {
        grid-template-columns: 1fr;
    }

    .product-business-model {
        padding: 40px 24px;
    }

    .business-tags {
        flex-direction: column;
        align-items: center;
    }
}

/* 小屏幕手机 */
@media (max-width: 480px) {
    html {
        font-size: 14px;
    }

    .container {
        padding: 0 16px;
    }

    .navbar-logo-text {
        display: none;
    }

    .navbar-logo img {
        height: 36px;
        transform: translateX(0);
    }

    .navbar-container {
        height: 56px;
        padding: 0 12px;
    }

    .navbar-menu {
        width: 75%;
    }

    .navbar-menu a {
        padding: 16px 16px;
        font-size: 0.9375rem;
    }

    .hero {
        padding: 70px 0 48px;
    }

    .hero-slogan {
        font-size: 1.375rem;
        letter-spacing: 1px;
        margin-bottom: 20px;
    }

    .hero-desc {
        font-size: 0.875rem;
        line-height: 1.6;
    }

    .hero-cta {
        padding: 12px 24px;
        font-size: 0.875rem;
        margin-top: 24px;
    }

    .section-title {
        margin-bottom: 40px;
    }

    .section-title h2 {
        font-size: 1.5rem;
    }

    .about-text h2 {
        font-size: 1.75rem;
    }

    .about-value-item {
        flex-direction: column;
        align-items: flex-start;
    }

    /* 480px about-hero */
    .about-hero {
        min-height: 400px;
        padding: 48px 16px;
    }

    .about-hero-content .section-title {
        margin-bottom: 24px;
    }

    .about-intro-card {
        padding: 28px 20px;
        border-radius: 16px;
    }

    .about-intro-text {
        font-size: 0.875rem;
        line-height: 1.75;
        margin-bottom: 16px;
    }

    .about-intro-text:last-of-type {
        margin-bottom: 20px;
    }

    .about-slogan {
        font-size: 1.125rem;
        margin-bottom: 12px;
    }

    .about-business {
        font-size: 0.8125rem;
        margin-bottom: 20px;
    }

    .about-card-logo img {
        height: 28px;
    }

    /* 480px联系方式 */
    .contact-hero {
        padding: 48px 16px;
    }

    .contact-info-card {
        padding: 28px 20px;
        border-radius: 16px;
    }

    .contact-info-header h3 {
        font-size: 1.25rem;
    }

    .contact-info-icon {
        width: 40px;
        height: 40px;
    }

    .contact-info-icon svg {
        width: 20px;
        height: 20px;
    }

    .contact-info-value {
        font-size: 0.9375rem;
    }

    .contact-form-card {
        padding: 28px 20px;
        border-radius: 16px;
    }

    .contact-form-header h3 {
        font-size: 1.125rem;
    }

    /* 480px核心价值观 */
    .values-section {
        padding: 48px 0;
    }

    .value-item {
        padding: 24px 0;
        gap: 16px;
    }

    .value-left {
        flex-direction: column;
        gap: 12px;
    }

    .value-icon {
        width: 48px;
        height: 48px;
    }

    .value-icon svg {
        width: 22px;
        height: 22px;
    }

    .value-title {
        font-size: 1rem;
    }

    .value-right {
        padding-left: 0;
    }

    .value-desc {
        font-size: 0.875rem;
        line-height: 1.75;
    }

    /* 480px画廊 */

    /* 480px公司地址 */
    .address-section {
        padding: 48px 0;
    }

    .address-title {
        font-size: 1.5rem;
        margin-bottom: 28px;
    }

    .address-map-card {
        border-radius: 12px;
        margin-bottom: 24px;
    }

    .address-detail {
        font-size: 0.9375rem;
        margin-bottom: 20px;
    }

    .address-buttons {
        flex-direction: column;
        gap: 12px;
    }

    .address-btn {
        width: 100%;
        justify-content: center;
    }
    .gallery-section {
        padding: 48px 0;
    }

    .gallery-arrow {
        width: 36px;
        height: 36px;
    }

    .gallery-arrow-left {
        left: 8px;
    }

    .gallery-arrow-right {
        right: 8px;
    }

    .gallery-caption {
        padding: 12px;
    }

    .gallery-caption p {
        font-size: 0.8125rem;
    }

    /* 480px新产品布局 */
    .product-main-content h3 {
        font-size: 20px;
    }

    .product-main-image {
        padding: 24px 20px 16px;
    }

    .product-main-image .product-logo-wrapper {
        padding: 14px 28px;
    }

    .product-main-content {
        padding: 20px;
    }

    .product-brand-text {
        font-size: 12px;
    }

    .product-matrix-grid {
        gap: 12px;
    }

    .matrix-card {
        padding: 16px 12px;
        gap: 10px;
    }

    .matrix-icon {
        width: 40px;
        height: 40px;
        margin-bottom: 0;
    }

    .matrix-icon svg {
        width: 20px;
        height: 20px;
    }

    .products-footer-text {
        font-size: 12px;
        margin-top: 16px;
    }

    .contact-info,
    .contact-form-wrapper {
        padding: 24px;
    }

    .footer {
        padding: 40px 16px 24px;
    }

    .footer-logo img {
        height: 36px;
    }

    .footer-company {
        font-size: 1rem;
    }

    .footer-slogan {
        font-size: 0.875rem;
    }

    .footer-desc {
        font-size: 0.8125rem;
        line-height: 1.7;
    }

    .footer-contact-item {
        font-size: 0.8125rem;
        gap: 8px;
    }

    .footer-contact-item svg {
        width: 16px;
        height: 16px;
    }

    .footer-copyright {
        font-size: 0.75rem;
    }

    .map-section {
        height: 300px;
    }
}