/* --- 全局重置与基础设置 --- */
:root {
    --primary-color: #0066cc;
    --primary-dark: #004499;
    --accent-color: #00a8ff;
    --text-dark: #333;
    --text-light: #666;
    --bg-light: #f8f9fa;
    --bg-gray: #f0f2f5;
    --border-color: #e0e0e0;
    --shadow: 0 4px 15px rgba(0,0,0,0.08);
    --shadow-hover: 0 8px 25px rgba(0,0,0,0.12);
    --radius: 8px;
    --transition: all 0.3s ease;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    -webkit-tap-highlight-color: transparent;
    outline: none;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
    color: var(--text-dark);
    background-color: #fff;
    overflow-x: hidden;
    display: flex;
    flex-direction: column;
    min-height: 100vh;
    line-height: 1.6;
}

a { text-decoration: none; color: inherit; transition: var(--transition); }
ul { list-style: none; }
img { width: 100%; display: block; }

/* --- 通用组件 --- */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 15px;
    width: 100%;
}

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

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

.section-title h2 {
    font-size: 28px;
    margin-bottom: 10px;
    font-weight: 700;
    color: var(--text-dark);
}

.section-title p {
    font-size: 14px;
    color: #999;
    letter-spacing: 2px;
    text-transform: uppercase;
}

.btn {
    display: inline-block;
    padding: 12px 30px;
    background: var(--primary-color);
    color: #fff;
    font-size: 14px;
    border-radius: var(--radius);
    transition: var(--transition);
    cursor: pointer;
    border: none;
    font-weight: 500;
}

.btn:hover { background: var(--primary-dark); transform: translateY(-2px); }

.btn-outline {
    background: transparent;
    border: 2px solid var(--primary-color);
    color: var(--primary-color);
}

.btn-outline:hover {
    background: var(--primary-color);
    color: #fff;
}

.btn-sm { padding: 8px 20px; font-size: 13px; }

.text-center { text-align: center; }

/* --- Header --- */
header {
    background: #fff;
    box-shadow: 0 2px 10px rgba(0,0,0,0.05);
    position: sticky;
    top: 0;
    z-index: 1000;
    height: 70px;
    display: flex;
    align-items: center;
    width: 100%;
}

.nav-wrapper {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    height: 40px;
    width: auto;
    flex-shrink: 0;
}

.logo img { height: 100%; width: auto; object-fit: contain; }

.pc-nav { display: none; }

.lang-switch {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-left: 20px;
    padding-left: 20px;
    border-left: 1px solid var(--border-color);
}

.lang-switch a {
    font-size: 13px;
    color: var(--text-light);
    padding: 4px 8px;
    border-radius: 4px;
}

.lang-switch a:hover,
.lang-switch a.active {
    color: var(--primary-color);
    background: rgba(0, 102, 204, 0.1);
}

.mobile-menu-trigger {
    font-size: 24px;
    color: var(--primary-color);
    padding: 10px;
    cursor: pointer;
    z-index: 1002;
}

@media (min-width: 992px) {
    .pc-nav {
        display: flex;
        align-items: center;
        margin-left: auto;
        gap: 25px;
    }
    .pc-nav a {
        font-size: 15px;
        font-weight: 500;
        color: var(--text-dark);
        white-space: nowrap;
        position: relative;
    }
    .pc-nav a:hover,
    .pc-nav a.active { color: var(--primary-color); }
    .pc-nav a.active::after {
        content: '';
        position: absolute;
        bottom: -5px;
        left: 0;
        width: 100%;
        height: 2px;
        background: var(--primary-color);
    }
    .mobile-menu-trigger { display: none !important; }
}

/* --- 移动端下拉菜单 --- */
.mobile-dropdown {
    position: fixed;
    top: 70px;
    left: 0;
    width: 100%;
    background: rgba(255, 255, 255, 0.98);
    box-shadow: 0 10px 30px rgba(0,0,0,0.1);
    transform: translateY(-20px);
    opacity: 0;
    pointer-events: none;
    visibility: hidden;
    transition: all 0.3s ease;
    z-index: 999;
    padding: 15px 0 25px;
    border-bottom: 1px solid rgba(0,0,0,0.05);
}

.mobile-dropdown.active {
    transform: translateY(0);
    opacity: 1;
    pointer-events: auto;
    visibility: visible;
}

.mobile-dropdown a {
    display: block;
    padding: 12px 25px;
    color: var(--text-dark);
    font-weight: 500;
    border-bottom: 1px solid rgba(0,0,0,0.03);
}

.mobile-dropdown a:hover,
.mobile-dropdown a.active {
    color: var(--primary-color);
    background: rgba(0, 102, 204, 0.05);
}

.mobile-lang-switch {
    display: flex;
    gap: 10px;
    padding: 15px 25px;
    border-top: 1px solid rgba(0,0,0,0.05);
    margin-top: 10px;
}

.mobile-lang-switch a {
    padding: 8px 15px;
    border-radius: 20px;
    border: 1px solid var(--border-color);
}

.mobile-lang-switch a.active {
    background: var(--primary-color);
    color: #fff;
    border-color: var(--primary-color);
}

/* --- 轮播图 --- */
.banner-carousel {
    position: relative;
    height: 400px;
    width: 100%;
    overflow: hidden;
    background: linear-gradient(135deg, #1a1a2e 0%, #16213e 100%);
}

@media (min-width: 768px) {
    .banner-carousel { height: 600px; }
}

.carousel-container {
    position: relative;
    width: 100%;
    height: 100%;
}

.carousel-slide {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-size: cover;
    background-position: center;
    opacity: 0;
    transition: opacity 1s ease-in-out;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
}

.carousel-slide.active { opacity: 1; z-index: 1; }
.carousel-slide::after {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, rgba(0, 102, 204, 0.7) 0%, rgba(0, 50, 100, 0.8) 100%);
    z-index: 1;
}

.banner-content {
    position: relative;
    z-index: 2;
    color: #fff;
    padding: 0 20px;
    max-width: 800px;
}

.banner-title {
    font-size: 36px;
    font-weight: 700;
    margin-bottom: 20px;
    letter-spacing: 2px;
    text-shadow: 0 2px 10px rgba(0,0,0,0.3);
}

.banner-subtitle {
    font-size: 16px;
    padding: 10px 25px;
    background: rgba(255,255,255,0.15);
    backdrop-filter: blur(5px);
    display: inline-block;
    border-radius: 30px;
    border: 1px solid rgba(255,255,255,0.3);
    margin-bottom: 20px;
}

.banner-btn {
    display: inline-block;
    padding: 12px 30px;
    background: #fff;
    color: var(--primary-color);
    border-radius: 30px;
    font-weight: 600;
    margin-top: 10px;
}

@media (min-width: 768px) {
    .banner-title { font-size: 52px; margin-bottom: 25px; }
    .banner-subtitle { font-size: 18px; padding: 12px 30px; }
}

.carousel-dots {
    position: absolute;
    bottom: 30px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    gap: 12px;
    z-index: 3;
}

.dot {
    width: 12px;
    height: 12px;
    background: rgba(255,255,255,0.4);
    border-radius: 50%;
    cursor: pointer;
    transition: 0.3s;
}

.dot.active {
    background: #fff;
    width: 35px;
    border-radius: 6px;
}

.carousel-arrow {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    width: 50px;
    height: 50px;
    background: rgba(255,255,255,0.2);
    border: none;
    border-radius: 50%;
    color: #fff;
    font-size: 20px;
    cursor: pointer;
    z-index: 3;
    transition: var(--transition);
    display: none;
}

@media (min-width: 768px) {
    .carousel-arrow { display: block; }
}

.carousel-arrow:hover { background: rgba(255,255,255,0.4); }
.carousel-prev { left: 30px; }
.carousel-next { right: 30px; }

/* --- 页面标题 --- */
.page-header {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-dark) 100%);
    color: #fff;
    padding: 60px 0;
    text-align: center;
}

.page-header h1 {
    font-size: 32px;
    margin-bottom: 10px;
}

.page-header p {
    font-size: 14px;
    opacity: 0.8;
    letter-spacing: 2px;
}

@media (min-width: 768px) {
    .page-header { padding: 80px 0; }
    .page-header h1 { font-size: 40px; }
}

/* --- 关于我们 --- */
.about-section { background: #fff; }

.about-flex {
    display: flex;
    flex-direction: column;
    gap: 30px;
    align-items: center;
}

@media (min-width: 768px) {
    .about-flex {
        flex-direction: row;
        align-items: center;
    }
    .about-img, .about-text { flex: 1; }
}

.about-text h3 {
    font-size: 24px;
    margin-bottom: 15px;
    color: var(--primary-color);
}

.about-text p {
    font-size: 15px;
    line-height: 1.8;
    color: var(--text-light);
    margin-bottom: 20px;
    text-align: justify;
}

.about-img img {
    border-radius: var(--radius);
    box-shadow: var(--shadow);
}

/* --- 解决方案 --- */
.solutions-section { background: var(--bg-light); }

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

@media (min-width: 576px) {
    .solutions-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (min-width: 992px) {
    .solutions-grid { grid-template-columns: repeat(4, 1fr); }
}

.solution-card {
    background: #fff;
    border-radius: var(--radius);
    padding: 30px 20px;
    text-align: center;
    box-shadow: var(--shadow);
    transition: var(--transition);
    display: block;
}

.solution-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-hover);
}

.solution-icon {
    width: 70px;
    height: 70px;
    background: linear-gradient(135deg, var(--primary-color), var(--accent-color));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 20px;
}

.solution-icon i {
    font-size: 28px;
    color: #fff;
}

.solution-card h4 {
    font-size: 18px;
    margin-bottom: 10px;
    color: var(--text-dark);
}

.solution-card p {
    font-size: 13px;
    color: var(--text-light);
    line-height: 1.6;
    margin-bottom: 15px;
}

.solution-link {
    font-size: 13px;
    color: var(--primary-color);
    font-weight: 500;
}

.solution-link i {
    margin-left: 5px;
    transition: var(--transition);
}

.solution-card:hover .solution-link i {
    transform: translateX(5px);
}

/* 解决方案详情页 */
.solutions-grid-full {
    grid-template-columns: 1fr;
}

@media (min-width: 768px) {
    .solutions-grid-full { grid-template-columns: repeat(2, 1fr); }
}

.solution-card-full {
    display: flex;
    flex-direction: column;
    overflow: hidden;
}

@media (min-width: 768px) {
    .solution-card-full {
        flex-direction: row;
        align-items: stretch;
    }
}

.solution-card-img {
    flex: 1;
    min-height: 200px;
}

.solution-card-img img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.solution-card-content {
    flex: 1;
    padding: 30px;
    text-align: left;
}

.solution-icon-small {
    width: 50px;
    height: 50px;
    background: linear-gradient(135deg, var(--primary-color), var(--accent-color));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 15px;
}

.solution-icon-small i {
    font-size: 20px;
    color: #fff;
}

.solution-category {
    display: inline-block;
    padding: 4px 12px;
    background: var(--bg-light);
    color: var(--text-light);
    font-size: 12px;
    border-radius: 20px;
    margin-bottom: 10px;
}

/* --- 产品 --- */
.products-section { background: #fff; }

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

@media (min-width: 576px) {
    .products-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (min-width: 992px) {
    .products-grid { grid-template-columns: repeat(4, 1fr); }
}

.product-card {
    background: #fff;
    border-radius: var(--radius);
    overflow: hidden;
    box-shadow: var(--shadow);
    transition: var(--transition);
}

.product-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-hover);
}

.product-img {
    position: relative;
    height: 200px;
    overflow: hidden;
}

.product-img img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s ease;
}

.product-card:hover .product-img img {
    transform: scale(1.1);
}

.product-category {
    position: absolute;
    top: 15px;
    left: 15px;
    padding: 5px 12px;
    background: var(--primary-color);
    color: #fff;
    font-size: 12px;
    border-radius: 20px;
}

.product-info {
    padding: 20px;
}

.product-info h4 {
    font-size: 16px;
    margin-bottom: 8px;
    color: var(--text-dark);
}

.product-info p {
    font-size: 13px;
    color: var(--text-light);
    line-height: 1.5;
    margin-bottom: 10px;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.product-price {
    font-size: 16px;
    color: #e74c3c;
    font-weight: 600;
    margin-bottom: 10px;
}

.product-link {
    font-size: 13px;
    color: var(--primary-color);
    font-weight: 500;
}

/* --- 荣誉资质 --- */
.honors-section { background: var(--bg-light); }

.honors-grid {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 20px;
}

.honor-item {
    text-align: center;
}

.honor-img {
    width: 150px;
    height: 200px;
    background: #fff;
    border-radius: var(--radius);
    overflow: hidden;
    box-shadow: var(--shadow);
    margin-bottom: 10px;
    transition: var(--transition);
}

.honor-item:hover .honor-img {
    transform: translateY(-5px);
    box-shadow: var(--shadow-hover);
}

.honor-img img {
    width: 100%;
    height: 100%;
    object-fit: contain;
    padding: 10px;
}

.honor-item p {
    font-size: 13px;
    color: var(--text-light);
}

/* --- 新闻 --- */
.news-section { background: #fff; }

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

@media (min-width: 768px) {
    .news-grid { grid-template-columns: repeat(3, 1fr); }
}

.news-card {
    background: #fff;
    border-radius: var(--radius);
    overflow: hidden;
    box-shadow: var(--shadow);
    transition: var(--transition);
    display: block;
}

.news-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-hover);
}

.news-img {
    height: 180px;
    overflow: hidden;
}

.news-img img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s ease;
}

.news-card:hover .news-img img {
    transform: scale(1.1);
}

.news-content {
    padding: 20px;
}

.news-category {
    display: inline-block;
    padding: 4px 10px;
    background: var(--bg-light);
    color: var(--primary-color);
    font-size: 12px;
    border-radius: 4px;
    margin-bottom: 10px;
}

.news-content h4 {
    font-size: 16px;
    margin-bottom: 8px;
    color: var(--text-dark);
    line-height: 1.4;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.news-content p {
    font-size: 13px;
    color: var(--text-light);
    line-height: 1.5;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
    margin-bottom: 10px;
}

.news-date {
    font-size: 12px;
    color: #999;
}

/* 新闻列表页 */
.news-list-full {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.news-item-full {
    display: flex;
    flex-direction: column;
    background: #fff;
    border-radius: var(--radius);
    overflow: hidden;
    box-shadow: var(--shadow);
    transition: var(--transition);
}

@media (min-width: 768px) {
    .news-item-full {
        flex-direction: row;
    }
}

.news-item-full:hover {
    box-shadow: var(--shadow-hover);
}

.news-item-img {
    flex-shrink: 0;
    width: 100%;
    height: 200px;
}

@media (min-width: 768px) {
    .news-item-img {
        width: 300px;
        height: auto;
    }
}

.news-item-img img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.news-item-content {
    flex: 1;
    padding: 25px;
}

.news-item-content h3 {
    font-size: 18px;
    margin-bottom: 10px;
    color: var(--text-dark);
}

.news-item-content p {
    font-size: 14px;
    color: var(--text-light);
    line-height: 1.6;
    margin-bottom: 15px;
}

.news-meta {
    font-size: 13px;
    color: #999;
}

/* --- 搜索 --- */
.search-section {
    background: var(--bg-light);
    padding: 30px 0;
}

.search-form {
    display: flex;
    flex-direction: column;
    gap: 15px;
}

@media (min-width: 768px) {
    .search-form {
        flex-direction: row;
        align-items: center;
    }
}

.search-box {
    flex: 1;
    display: flex;
    background: #fff;
    border-radius: var(--radius);
    overflow: hidden;
    box-shadow: var(--shadow);
}

.search-input {
    flex: 1;
    padding: 15px 20px;
    border: none;
    font-size: 15px;
    outline: none;
}

.search-btn {
    padding: 15px 25px;
    background: var(--primary-color);
    color: #fff;
    border: none;
    font-size: 14px;
    cursor: pointer;
    transition: var(--transition);
}

.search-btn:hover { background: var(--primary-dark); }

.filter-box {
    flex-shrink: 0;
}

.filter-select {
    padding: 15px 20px;
    border: none;
    background: #fff;
    border-radius: var(--radius);
    font-size: 14px;
    min-width: 150px;
    box-shadow: var(--shadow);
    cursor: pointer;
}

.search-result-info {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 15px 20px;
    background: var(--bg-light);
    border-radius: var(--radius);
    margin-bottom: 20px;
}

.clear-search {
    color: var(--primary-color);
    font-size: 14px;
}

/* --- 分页 --- */
.pagination {
    display: flex;
    justify-content: center;
    gap: 8px;
    margin-top: 40px;
}

.page-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    background: #fff;
    border: 1px solid var(--border-color);
    border-radius: var(--radius);
    color: var(--text-dark);
    font-size: 14px;
    transition: var(--transition);
}

.page-btn:hover,
.page-btn.active {
    background: var(--primary-color);
    border-color: var(--primary-color);
    color: #fff;
}

/* --- FAQ --- */
.faq-section { background: var(--bg-light); }

.faq-list {
    max-width: 800px;
    margin: 0 auto;
}

.faq-item {
    background: #fff;
    border-radius: var(--radius);
    padding: 25px;
    margin-bottom: 15px;
    box-shadow: var(--shadow);
}

.faq-q {
    font-weight: 600;
    margin-bottom: 10px;
    display: flex;
    align-items: start;
    color: var(--text-dark);
    font-size: 15px;
}

.faq-q i {
    color: var(--primary-color);
    margin-right: 12px;
    margin-top: 3px;
    font-size: 18px;
}

.faq-a {
    font-size: 14px;
    color: var(--text-light);
    padding-left: 32px;
    line-height: 1.7;
}

/* --- 联系我们 --- */
.contact-section { background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-dark) 100%); }

.contact-box {
    display: flex;
    flex-direction: column;
    background: #fff;
    border-radius: var(--radius);
    overflow: hidden;
    box-shadow: var(--shadow-hover);
}

@media (min-width: 768px) {
    .contact-box { flex-direction: row; }
}

.contact-info,
.contact-form {
    flex: 1;
    padding: 40px;
}

.contact-info {
    background: var(--bg-light);
}

.contact-info h3,
.contact-form h3 {
    font-size: 22px;
    margin-bottom: 25px;
    color: var(--text-dark);
}

.contact-item {
    display: flex;
    align-items: start;
    margin-bottom: 15px;
    font-size: 14px;
}

.contact-item i {
    width: 20px;
    color: var(--primary-color);
    margin-right: 12px;
    margin-top: 3px;
}

.form-group { margin-bottom: 15px; }

.form-control {
    width: 100%;
    padding: 12px 15px;
    border: 1px solid var(--border-color);
    border-radius: var(--radius);
    font-size: 14px;
    transition: var(--transition);
}

.form-control:focus {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(0, 102, 204, 0.1);
}

.submit-btn {
    width: 100%;
    padding: 14px;
    background: var(--primary-color);
    color: #fff;
    border: none;
    border-radius: var(--radius);
    font-size: 15px;
    font-weight: 500;
    cursor: pointer;
    transition: var(--transition);
}

.submit-btn:hover { background: var(--primary-dark); }

/* --- 加入我们 --- */
.join-intro {
    background: var(--bg-light);
}

.intro-content {
    text-align: center;
    max-width: 600px;
    margin: 0 auto;
}

.intro-content h2 {
    font-size: 28px;
    margin-bottom: 15px;
    color: var(--text-dark);
}

.intro-content p {
    font-size: 15px;
    color: var(--text-light);
    line-height: 1.8;
}

.jobs-section { background: #fff; }

.jobs-list {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.job-card {
    background: #fff;
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    overflow: hidden;
    transition: var(--transition);
}

.job-card:hover {
    box-shadow: var(--shadow-hover);
}

.job-header {
    background: var(--bg-light);
    padding: 20px 25px;
    border-bottom: 1px solid var(--border-color);
}

.job-header h3 {
    font-size: 18px;
    margin-bottom: 10px;
    color: var(--text-dark);
}

.job-meta {
    display: flex;
    flex-wrap: wrap;
    gap: 15px;
    font-size: 13px;
    color: var(--text-light);
}

.job-meta i {
    color: var(--primary-color);
    margin-right: 5px;
}

.job-body {
    padding: 25px;
}

.job-section {
    margin-bottom: 20px;
}

.job-section h4 {
    font-size: 15px;
    margin-bottom: 10px;
    color: var(--text-dark);
}

.job-section p {
    font-size: 14px;
    color: var(--text-light);
    line-height: 1.7;
}

.job-footer {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-top: 20px;
    border-top: 1px solid var(--border-color);
}

.job-salary {
    font-size: 16px;
    color: #e74c3c;
    font-weight: 600;
}

.btn-apply {
    background: var(--primary-color);
    color: #fff;
}

.btn-apply:hover {
    background: var(--primary-dark);
}

/* --- 关于我们页 --- */
.about-page { background: #fff; }

.about-content {
    display: flex;
    flex-direction: column;
    gap: 30px;
}

@media (min-width: 768px) {
    .about-content { flex-direction: row; }
}

.about-image {
    flex: 1;
}

.about-image img {
    border-radius: var(--radius);
    box-shadow: var(--shadow);
}

.about-text-full {
    flex: 1;
}

.about-text-full h2 {
    font-size: 28px;
    margin-bottom: 10px;
    color: var(--text-dark);
}

.about-subtitle {
    font-size: 14px;
    color: var(--primary-color);
    margin-bottom: 20px;
    letter-spacing: 1px;
}

.about-summary {
    font-size: 15px;
    color: var(--text-light);
    line-height: 1.8;
    margin-bottom: 20px;
    padding-bottom: 20px;
    border-bottom: 1px solid var(--border-color);
}

.about-detail {
    font-size: 14px;
    color: var(--text-light);
    line-height: 1.8;
}

.about-detail h3 {
    font-size: 18px;
    color: var(--text-dark);
    margin: 20px 0 10px;
}

.about-detail p {
    margin-bottom: 15px;
}

/* 公司信息 */
.company-info-section { background: var(--bg-light); }

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

@media (min-width: 768px) {
    .info-grid { grid-template-columns: repeat(4, 1fr); }
}

.info-card {
    background: #fff;
    border-radius: var(--radius);
    padding: 30px 20px;
    text-align: center;
    box-shadow: var(--shadow);
}

.info-icon {
    width: 60px;
    height: 60px;
    background: linear-gradient(135deg, var(--primary-color), var(--accent-color));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 15px;
}

.info-icon i {
    font-size: 24px;
    color: #fff;
}

.info-card h4 {
    font-size: 14px;
    color: var(--text-light);
    margin-bottom: 8px;
}

.info-card p {
    font-size: 16px;
    color: var(--text-dark);
    font-weight: 600;
}

/* 经营范围 */
.business-section { background: #fff; }

.business-content {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 15px;
}

.business-item {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 12px 20px;
    background: var(--bg-light);
    border-radius: 30px;
    font-size: 14px;
    color: var(--text-dark);
}

.business-item i {
    color: var(--primary-color);
}

/* --- 无结果 --- */
.no-results {
    text-align: center;
    padding: 60px 20px;
    color: var(--text-light);
}

.no-results i {
    font-size: 60px;
    margin-bottom: 20px;
    opacity: 0.3;
}

.no-results p {
    font-size: 16px;
}

/* --- Footer --- */
.footer {
    background: #1a1a2e;
    color: #fff;
    padding: 50px 0 20px;
    font-size: 13px;
    margin-top: auto;
    width: 100%;
}

.footer-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 30px;
    margin-bottom: 30px;
}

@media (min-width: 768px) {
    .footer-grid { grid-template-columns: 2fr 1fr 1fr; }
}

.footer-info h3 {
    color: #fff;
    font-size: 18px;
    margin-bottom: 20px;
}

.footer-info p {
    margin-bottom: 10px;
    color: rgba(255,255,255,0.7);
}

.footer-info i {
    width: 20px;
    color: var(--accent-color);
}

.footer-links h4,
.footer-qrcode h4 {
    color: #fff;
    font-size: 16px;
    margin-bottom: 20px;
}

.footer-links a {
    display: block;
    color: rgba(255,255,255,0.7);
    margin-bottom: 10px;
}

.footer-links a:hover {
    color: #fff;
}

.qrcode-img {
    width: 120px;
    height: 120px;
    border-radius: var(--radius);
}

.qrcode-placeholder {
    width: 120px;
    height: 120px;
    background: rgba(255,255,255,0.1);
    border-radius: var(--radius);
    display: flex;
    align-items: center;
    justify-content: center;
}

.qrcode-placeholder i {
    font-size: 40px;
    color: rgba(255,255,255,0.3);
}

.copyright {
    text-align: center;
    border-top: 1px solid rgba(255,255,255,0.1);
    padding-top: 20px;
    color: rgba(255,255,255,0.5);
}

@media (max-width: 991px) {
    .footer { padding-bottom: 80px; }
}

/* --- Mobile Bottom Nav --- */
.mobile-bar {
    position: fixed;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 60px;
    background: #fff;
    display: flex;
    justify-content: space-around;
    align-items: center;
    border-top: 1px solid var(--border-color);
    z-index: 1001;
    box-shadow: 0 -2px 10px rgba(0,0,0,0.05);
}

.mobile-item {
    text-align: center;
    color: var(--text-light);
    font-size: 10px;
    flex: 1;
    padding: 8px 0;
}

.mobile-item i {
    display: block;
    font-size: 20px;
    margin-bottom: 3px;
}

.mobile-item span {
    display: block;
}

.mobile-item.active { color: var(--primary-color); }

@media (min-width: 992px) {
    .mobile-bar { display: none; }
}

/* --- Modal --- */
.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0,0,0,0.6);
    z-index: 2000;
    display: none;
    justify-content: center;
    align-items: center;
    backdrop-filter: blur(3px);
}

.modal-overlay.active { display: flex; }

.modal-content {
    background: #fff;
    padding: 30px;
    border-radius: var(--radius);
    width: 90%;
    max-width: 450px;
    text-align: left;
    position: relative;
    box-shadow: 0 20px 50px rgba(0,0,0,0.2);
    animation: zoomIn 0.3s ease;
    max-height: 90vh;
    overflow-y: auto;
}

@keyframes zoomIn {
    from { transform: scale(0.9); opacity: 0; }
    to { transform: scale(1); opacity: 1; }
}

.modal-close {
    position: absolute;
    top: 15px;
    right: 20px;
    font-size: 24px;
    color: #999;
    cursor: pointer;
    transition: var(--transition);
}

.modal-close:hover { color: var(--text-dark); }

.modal-content h3 {
    font-size: 20px;
    margin-bottom: 20px;
    color: var(--text-dark);
}

/* --- Alert --- */
.alert {
    padding: 15px 20px;
    border-radius: var(--radius);
    margin-bottom: 20px;
    font-size: 14px;
}

.alert-success {
    background: #d4edda;
    color: #155724;
    border: 1px solid #c3e6cb;
}

.alert-danger {
    background: #f8d7da;
    color: #721c24;
    border: 1px solid #f5c6cb;
}

/* --- 详情页 --- */
.detail-header {
    background: var(--bg-light);
    padding: 40px 0;
    text-align: center;
    border-bottom: 1px solid var(--border-color);
}

.detail-header h1 {
    font-size: 24px;
    margin-bottom: 10px;
    color: var(--text-dark);
}

.detail-meta {
    font-size: 13px;
    color: #999;
}

.detail-content {
    padding: 40px 0;
    font-size: 15px;
    line-height: 1.8;
    color: var(--text-light);
    flex-grow: 1;
}

.detail-content img {
    max-width: 100%;
    height: auto;
    margin: 20px 0;
    border-radius: var(--radius);
}

.detail-content p { margin-bottom: 15px; }
.detail-content h3 { font-size: 18px; margin: 25px 0 15px; color: var(--text-dark); }
.detail-content ul, .detail-content ol { margin-left: 20px; margin-bottom: 15px; }
.detail-content li { margin-bottom: 8px; }