/* ========================================
   1. 全局变量与重置
   ======================================== */
:root {
    /* 工业蓝主色调 - 统一规范 */
    --primary: #1E5A99;
    --primary-dark: #0A3A62;
    --primary-darker: #052442;
    --primary-light: #3578B3;
    --primary-glow: #4A8BCF;
    --secondary: #F59E0B;
    --secondary-dark: #D97706;
    --gray-100: #F8FAFC;
    --gray-200: #E2E8F0;
    --gray-500: #64748B;
    --gray-600: #475569;
    --gray-700: #334155;
    --gray-800: #1E293B;
    --white: #FFFFFF;
    --shadow-sm: 0 4px 6px -1px rgba(0,0,0,0.1);
    --shadow-md: 0 10px 25px -5px rgba(0,0,0,0.15);
    --shadow-lg: 0 20px 40px -12px rgba(0,0,0,0.2);
    --shadow-blue: 0 10px 30px -8px rgba(30,90,153,0.3);
    --shadow-blue-lg: 0 20px 40px -12px rgba(30,90,153,0.35);
    --radius: 1rem;
    --radius-lg: 1.5rem;
    --radius-xl: 2rem;
    --bg-hero: linear-gradient(135deg, #0A3A62 0%, #1E5A99 50%, #2B6EB0 100%);
    --bg-section-dark: linear-gradient(135deg, #0A3A62 0%, #1E5A99 100%);
    --bg-section-light: #F0F4F9;
    --bg-card: linear-gradient(145deg, #FFFFFF 0%, #F5F8FC 100%);
    --bg-footer: linear-gradient(135deg, #052442 0%, #0A3A62 50%, #1E5A99 100%);
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Inter', system-ui, -apple-system, sans-serif;
    color: var(--gray-700);
    line-height: 1.5;
    background: var(--gray-100);
}

.container {
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 2rem;
}

a {
    text-decoration: none;
    color: inherit;
}

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


/* ========================================
   2. 全局组件
   ======================================== */

/* ----- 按钮 ----- */
.btn {
    display: inline-flex;
    align-items: center;
    padding: 0.8rem 1.8rem;
    font-weight: 600;
    border-radius: 48px;
    gap: 0.5rem;
    transition: 0.3s;
    cursor: pointer;
    border: none;
}
.btn-primary {
    background: linear-gradient(135deg, var(--primary), var(--primary-dark));
    color: white;
    box-shadow: var(--shadow-blue);
}
.btn-primary:hover {
    background: linear-gradient(135deg, var(--primary-dark), var(--primary-darker));
    transform: translateY(-3px);
    box-shadow: var(--shadow-blue-lg);
}
.btn-outline {
    border: 2px solid var(--primary);
    color: var(--primary);
    background: transparent;
}
.btn-outline:hover {
    background: var(--primary);
    color: white;
    transform: translateY(-3px);
    box-shadow: var(--shadow-blue);
}
.btn-light {
    background: white;
    color: var(--primary);
    box-shadow: var(--shadow-sm);
}
.btn-light:hover {
    background: var(--primary);
    color: white;
    transform: translateY(-3px);
    box-shadow: var(--shadow-blue);
}
.btn-search {
    background: var(--primary);
    color: #fff;
    border: none;
    padding: 0 16px;
    border-radius: 8px;
    cursor: pointer;
    transition: background 0.2s;
}
.btn-search:hover {
    background: var(--primary-dark);
}

/* ----- 头部导航 ----- */
.header {
    position: sticky;
    top: 0;
    background: rgba(255,255,255,0.95);
    backdrop-filter: blur(12px);
    z-index: 100;
    box-shadow: 0 2px 20px rgba(0,0,0,0.08);
}
.header .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 80px;
}
.logo a {
    display: flex;
    align-items: center;
    gap: 0.8rem;
}
.logo-icon {
    width: 44px;
    height: 44px;
    background: linear-gradient(135deg, var(--primary), var(--primary-dark));
    border-radius: 14px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.8rem;
    color: white;
    box-shadow: var(--shadow-sm);
}
.logo-text {
    font-weight: 800;
    font-size: 1.5rem;
    background: linear-gradient(135deg, var(--primary), var(--primary-dark));
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
}
.logo-text span {
    font-weight: 500;
    color: var(--gray-500);
}
.nav-list {
    display: flex;
    gap: 2rem;
    list-style: none;
}
.nav-list a {
    transition: color 0.2s;
    font-weight: 500;
    color: var(--gray-700);
}
.nav-list a:hover,
.nav-list li.active > a {
    color: var(--secondary);
}
.sub-nav {
    position: absolute;
    top: 100%;
    left: 0;
    background: white;
    min-width: 180px;
    box-shadow: var(--shadow-md);
    border-radius: 12px;
    padding: 0.8rem 0;
    opacity: 0;
    visibility: hidden;
    transition: 0.2s;
    list-style: none;
    z-index: 101;
}
.has-sub {
    position: relative;
}
.has-sub:hover .sub-nav {
    opacity: 1;
    visibility: visible;
}
.sub-nav li {
    padding: 0.5rem 1.2rem;
}
.sub-nav li:hover {
    background: var(--gray-200);
}
.header-tel .tel-link {
    background: linear-gradient(135deg, var(--primary), var(--primary-dark));
    color: white;
    padding: 0.5rem 1.2rem;
    border-radius: 40px;
    transition: 0.2s;
    box-shadow: var(--shadow-sm);
}
.header-tel .tel-link:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}
.mobile-toggle {
    display: none;
    font-size: 1.8rem;
    background: none;
    border: none;
    cursor: pointer;
    color: var(--primary);
}

/* ----- 页脚 ----- */
.footer {
    background: var(--bg-footer);
    color: rgba(255,255,255,0.7);
    padding: 3rem 0 2rem;
}
.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: 2rem;
    margin-bottom: 2rem;
}
.footer-logo {
    font-size: 1.4rem;
    font-weight: 700;
    color: white;
    margin-bottom: 0.5rem;
}
.footer-col p {
    font-size: 0.85rem;
    line-height: 1.6;
    color: rgba(255,255,255,0.7);
}
.footer-col h4 {
    color: white;
    margin-bottom: 1rem;
    font-size: 1rem;
    font-weight: 600;
}
.footer-col ul {
    list-style: none;
}
.footer-col li {
    margin-bottom: 0.5rem;
}
.footer-col a {
    font-size: 0.85rem;
    transition: all 0.2s;
    color: rgba(255,255,255,0.7);
}
.footer-col a:hover {
    color: var(--secondary);
}
.footer-links {
    display: flex;
    justify-content: space-between;
    flex-wrap: wrap;
    border-top: 1px solid rgba(255,255,255,0.1);
    border-bottom: 1px solid rgba(255,255,255,0.1);
    padding: 1rem 0;
    margin: 1rem 0;
    font-size: 0.85rem;
}
.friend-links {
    color: rgba(255,255,255,0.7);
}
.friend-links strong {
    color: white;
    font-weight: 600;
}
.friend-links a,
.sitemap-links a {
    margin: 0 0.5rem;
    color: rgba(255,255,255,0.7);
    transition: color 0.2s;
}
.friend-links a:hover,
.sitemap-links a:hover {
    color: var(--secondary);
}
.sitemap-links {
    color: rgba(255,255,255,0.7);
}
.footer-bottom {
    text-align: center;
    font-size: 0.8rem;
    border-top: 1px solid rgba(255,255,255,0.1);
    padding-top: 1.5rem;
    color: rgba(255,255,255,0.6);
}
.footer-bottom a {
    color: rgba(255,255,255,0.8);
    transition: color 0.2s;
}
.footer-bottom a:hover {
    color: var(--secondary);
}

/* ----- 面包屑 ----- */
.breadcrumb-wrapper {
    background: var(--gray-100);
    padding: 1rem 0;
    border-bottom: 1px solid var(--gray-200);
}
.breadcrumb {
    font-size: 0.85rem;
    color: var(--gray-600);
}
.breadcrumb a {
    color: var(--primary);
    transition: color 0.2s;
}
.breadcrumb a:hover {
    color: var(--secondary);
}
.breadcrumb .sep,
.breadcrumb .separator {
    margin: 0 0.5rem;
    color: var(--gray-500);
}

/* ----- 侧边栏卡片（全局统一） ----- */
.sidebar-card {
    background: var(--bg-card);
    border-radius: var(--radius);
    padding: 1.5rem;
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--gray-200);
    margin-bottom: 1.5rem;
}
.sidebar-card h3 {
    font-size: 1.1rem;
    color: var(--primary);
    margin-bottom: 1rem;
    padding-bottom: 0.5rem;
    border-bottom: 2px solid var(--secondary);
    display: inline-block;
}

/* ----- 搜索框 ----- */
.search-form {
    display: flex;
    gap: 0.5rem;
    flex-wrap: wrap;
}
.search-form input {
    flex: 1;
    padding: 0.6rem 0.8rem;
    border: 1px solid var(--gray-200);
    border-radius: 8px;
    font-size: 0.9rem;
    outline: none;
    transition: border-color 0.2s;
    min-width: 120px;
}
.search-form input:focus {
    border-color: var(--primary);
}
.search-form .btn-search {
    padding: 0.6rem 1.2rem;
}

/* ----- 分页（全局统一） ----- */
.pagination {
    display: flex;
    justify-content: center;
    gap: 0.5rem;
    flex-wrap: wrap;
    margin-top: 2rem;
}
.pagination a,
.pagination span {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 40px;
    height: 40px;
    padding: 0 12px;
    border: 1px solid var(--gray-200);
    border-radius: 8px;
    background: var(--white);
    color: var(--gray-700);
    text-decoration: none;
    transition: all 0.2s;
}
.pagination a:hover,
.pagination a.active {
    background: var(--primary);
    color: #fff;
    border-color: var(--primary);
}
.pagination .active {
    background: var(--primary);
    color: #fff;
    border-color: var(--primary);
}

/* ----- 通用区块标题 ----- */
.section-title {
    text-align: center;
    margin-bottom: 3.5rem;
}
.section-tag {
    background: linear-gradient(135deg, var(--primary), var(--primary-dark));
    color: white;
    padding: 0.3rem 1.2rem;
    border-radius: 40px;
    display: inline-block;
    margin-bottom: 1rem;
    font-size: 0.85rem;
    font-weight: 500;
    box-shadow: var(--shadow-sm);
}
.section-title h2 {
    font-size: 2.2rem;
    font-weight: 700;
    color: var(--primary-dark);
}
.section-title h2 span {
    color: var(--secondary);
}
.section-title p {
    color: var(--gray-600);
    max-width: 700px;
    margin: 0.8rem auto 0;
    font-size: 1rem;
}
.section-title.light h2,
.section-title.light p {
    color: white;
}
.section-title.light .section-tag {
    background: rgba(255,255,255,0.2);
    color: white;
}

/* ----- FAQ 通用（含首页与全局） ----- */
.faq-item {
    background: rgba(255,255,255,0.1);
    border-radius: 1rem;
    margin-bottom: 0.8rem;
    backdrop-filter: blur(4px);
    border-left: none;
    padding: 0;
}
.faq-question {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 1.2rem;
    font-weight: 600;
    cursor: pointer;
    background: transparent;
    color: #ffffff;
}
.faq-toggle {
    position: relative;
    width: 20px;
    height: 20px;
}
.faq-toggle::before,
.faq-toggle::after {
    content: '';
    position: absolute;
    background: white;
    transition: 0.2s;
}
.faq-toggle::before {
    width: 10px;
    height: 2px;
    top: 9px;
    left: 5px;
}
.faq-toggle::after {
    width: 2px;
    height: 10px;
    top: 5px;
    left: 9px;
}
.faq-item.active .faq-toggle::after {
    transform: rotate(90deg);
    opacity: 0;
}
.faq-answer {
    max-height: 0;
    overflow: hidden;
    transition: 0.3s;
    padding: 0 1.2rem;
    color: #ffffff;
}
.faq-item.active .faq-answer {
    max-height: 300px;
    padding: 0 1.2rem 1rem;
}

/* 浅色背景下的FAQ（非深色区块） */
.faq-item-light {
    background: #f9fafb;
    border-left: 3px solid var(--secondary);
    border-radius: 12px;
    padding: 16px;
    margin-bottom: 12px;
}
.faq-item-light .faq-question {
    color: var(--gray-700);
    padding: 0;
    margin-bottom: 10px;
}
.faq-item-light .faq-answer {
    color: var(--gray-600);
    padding: 0;
    max-height: none;
}

/* ----- CTA 横幅 ----- */
.cta-banner {
    background: linear-gradient(135deg, var(--primary), var(--primary-dark));
    padding: 50px 0;
    color: #fff;
}
.cta-inner {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 20px;
}
.cta-text h2 {
    font-size: 28px;
    margin-bottom: 8px;
}

/* ----- 返回顶部 ----- */
.back-to-top {
    position: fixed;
    bottom: 2rem;
    right: 2rem;
    width: 48px;
    height: 48px;
    background: linear-gradient(135deg, var(--primary), var(--primary-dark));
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    opacity: 0;
    visibility: hidden;
    transition: 0.3s;
    z-index: 99;
    box-shadow: var(--shadow-md);
}
.back-to-top.show {
    opacity: 1;
    visibility: visible;
}
.back-to-top:hover {
    background: var(--secondary);
    transform: translateY(-3px);
}

/* ----- 灯箱（图片放大） ----- */
.lightbox {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0,0,0,0.9);
    z-index: 1000;
    justify-content: center;
    align-items: center;
}
.lightbox.show {
    display: flex;
}
.lightbox-img {
    max-width: 90%;
    max-height: 90%;
    object-fit: contain;
}
.close-lightbox {
    position: absolute;
    top: 20px;
    right: 30px;
    font-size: 40px;
    color: white;
    cursor: pointer;
    font-weight: bold;
}
.close-lightbox:hover {
    color: var(--secondary);
}


/* ========================================
   3. 首页专用模块
   ======================================== */

/* ----- Hero 区域 ----- */
.hero {
    background: var(--bg-hero);
    padding: 5rem 0 7rem;
    position: relative;
    overflow: hidden;
}
.hero::before {
    content: '';
    position: absolute;
    top: -30%;
    right: -10%;
    width: 60%;
    height: 160%;
    background: radial-gradient(circle, rgba(255,255,255,0.08) 0%, transparent 70%);
    pointer-events: none;
}
.hero::after {
    content: '';
    position: absolute;
    bottom: -20%;
    left: -10%;
    width: 50%;
    height: 100%;
    background: radial-gradient(circle, rgba(245,158,11,0.06) 0%, transparent 70%);
    pointer-events: none;
}
.hero-inner {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
    align-items: center;
    position: relative;
    z-index: 2;
}
.hero-badge {
    background: rgba(255,255,255,0.15);
    backdrop-filter: blur(8px);
    color: white;
    display: inline-block;
    padding: 0.3rem 1.2rem;
    border-radius: 60px;
    font-size: 0.85rem;
    margin-bottom: 1rem;
    font-weight: 500;
}
.hero-content h1 {
    font-size: 3.5rem;
    font-weight: 800;
    line-height: 1.2;
    color: white;
    margin-bottom: 1.2rem;
}
.hero-content h1 span {
    color: var(--secondary);
    position: relative;
    display: inline-block;
}
.hero-content p {
    color: rgba(255,255,255,0.85);
    margin-bottom: 2rem;
    font-size: 1.1rem;
    line-height: 1.6;
}
.hero-buttons {
    display: flex;
    gap: 1rem;
    margin-bottom: 2.5rem;
    flex-wrap: wrap;
}
.hero-stats {
    display: flex;
    gap: 2.5rem;
    flex-wrap: wrap;
}
.hero-stats div strong {
    display: block;
    font-size: 2rem;
    font-weight: 800;
    color: white;
}
.hero-stats div span {
    font-size: 0.85rem;
    color: rgba(255,255,255,0.7);
}
.hero-image .hero-card {
    background: rgba(255,255,255,0.1);
    backdrop-filter: blur(16px);
    border-radius: 2rem;
    padding: 2.5rem;
    text-align: center;
    border: 1px solid rgba(255,255,255,0.2);
    box-shadow: 0 20px 40px -20px rgba(0,0,0,0.3);
}
.hero-icon {
    font-size: 5rem;
}
.hero-text {
    font-weight: 600;
    margin: 0.8rem 0;
    font-size: 1.1rem;
    color: white;
}
.hero-badge-small {
    display: inline-block;
    background: var(--secondary);
    color: white;
    padding: 0.3rem 1rem;
    border-radius: 40px;
    font-size: 0.85rem;
    margin-top: 0.5rem;
    font-weight: 600;
}
.hero-wave {
    position: absolute;
    bottom: -2px;
    width: 100%;
    line-height: 0;
    z-index: 1;
}
.hero-wave svg path {
    fill: var(--gray-100);
}

/* ----- 四大品类卡片 ----- */
.categories {
    padding: 5rem 0;
    background: var(--gray-100);
}
.category-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 2rem;
}
.category-card {
    background: var(--bg-card);
    padding: 2rem;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
    transition: all 0.4s;
    border-bottom: 3px solid transparent;
}
.category-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-lg);
    border-bottom-color: var(--secondary);
}
.cat-icon {
    font-size: 3rem;
}
.category-card h3 {
    margin: 1rem 0 0.5rem;
    font-size: 1.2rem;
    color: var(--primary);
}
.category-card p {
    color: var(--gray-600);
    font-size: 0.9rem;
    line-height: 1.5;
}
.cat-tags {
    display: flex;
    gap: 0.5rem;
    flex-wrap: wrap;
    margin-top: 1rem;
}
.cat-tags span {
    background: var(--gray-200);
    color: var(--primary);
    padding: 0.2rem 0.7rem;
    border-radius: 40px;
    font-size: 0.7rem;
}
.cat-link {
    display: inline-block;
    margin-top: 1rem;
    color: var(--secondary);
    font-weight: 600;
}

/* ----- 数据定制卡片 ----- */
.packaging-data {
    padding: 5rem 0;
    background: var(--white);
}
.data-grid-3d {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 2rem;
}
.data-card-3d {
    background: var(--bg-card);
    padding: 2rem 1.5rem;
    border-radius: 1.5rem;
    text-align: center;
    transition: all 0.4s;
    box-shadow: var(--shadow-sm);
    border-bottom: 3px solid transparent;
}
.data-card-3d:hover {
    transform: translateY(-12px);
    box-shadow: var(--shadow-lg);
    border-bottom-color: var(--secondary);
}
.data-number-3d {
    font-size: 3.5rem;
    font-weight: 800;
    background: linear-gradient(135deg, var(--primary), var(--primary-dark));
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
    line-height: 1;
    margin: 0.5rem 0;
}
.data-number-3d small {
    font-size: 1rem;
    color: var(--secondary);
}
.data-title-3d {
    font-size: 1.2rem;
    font-weight: 700;
    margin: 1rem 0 0.5rem;
    color: var(--primary);
}
.data-desc-3d {
    font-size: 0.85rem;
    color: var(--gray-600);
    line-height: 1.5;
}

/* ----- 材料工艺卡片 ----- */
.packaging-materials {
    padding: 5rem 0;
    background: var(--gray-100);
}
.materials-grid-3d {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
}
.material-card-3d {
    background: var(--bg-card);
    padding: 2rem 1.2rem;
    border-radius: 1.5rem;
    text-align: center;
    transition: all 0.35s ease;
    box-shadow: var(--shadow-sm);
    border-bottom: 3px solid transparent;
}
.material-card-3d:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-lg);
    border-bottom-color: var(--secondary);
}
.material-icon-3d {
    font-size: 3rem;
    margin-bottom: 1rem;
}
.material-card-3d h3 {
    font-size: 1.2rem;
    margin-bottom: 0.5rem;
    color: var(--primary);
}
.material-card-3d p {
    font-size: 0.85rem;
    color: var(--gray-600);
    margin-bottom: 1rem;
}
.material-tag {
    display: inline-block;
    background: linear-gradient(135deg, var(--primary), var(--primary-dark));
    padding: 0.3rem 1rem;
    border-radius: 30px;
    font-size: 0.7rem;
    font-weight: 600;
    color: white;
}

/* ----- 行业解决方案 ----- */
.industry-solutions {
    padding: 5rem 0;
    background: var(--white);
}
.solutions-grid-3d {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
}
.solution-card-3d {
    background: var(--bg-card);
    padding: 2rem 1.2rem;
    border-radius: 1.5rem;
    text-align: center;
    transition: all 0.35s;
    box-shadow: var(--shadow-sm);
    border-bottom: 3px solid transparent;
}
.solution-card-3d:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-lg);
    border-bottom-color: var(--secondary);
}
.solution-icon-3d {
    font-size: 2.8rem;
    margin-bottom: 1rem;
}
.solution-card-3d h3 {
    font-size: 1.1rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
    color: var(--primary);
}
.solution-card-3d p {
    font-size: 0.85rem;
    color: var(--gray-600);
    line-height: 1.5;
}

/* ----- 核心竞争力 ----- */
.competitive-advantage {
    padding: 5rem 0;
    background: var(--bg-section-dark);
    color: white;
}
.competitive-advantage .section-title h2,
.competitive-advantage .section-title p {
    color: white;
}
.competitive-advantage .section-tag {
    background: rgba(255,255,255,0.2);
    color: white;
}
.advantage-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
}
.advantage-item {
    background: rgba(255,255,255,0.1);
    backdrop-filter: blur(8px);
    border-radius: var(--radius);
    padding: 2rem;
    text-align: center;
    transition: all 0.3s;
    border: 1px solid rgba(255,255,255,0.2);
}
.advantage-item:hover {
    transform: translateY(-5px);
    background: rgba(255,255,255,0.2);
    border-color: var(--secondary);
}
.advantage-icon {
    font-size: 2.5rem;
    margin-bottom: 1rem;
}
.advantage-item h3 {
    font-size: 1.2rem;
    margin-bottom: 0.8rem;
}
.advantage-item p {
    font-size: 0.9rem;
    opacity: 0.9;
    margin-bottom: 1rem;
}
.advantage-data {
    font-size: 0.8rem;
    background: rgba(0,0,0,0.3);
    display: inline-block;
    padding: 0.3rem 0.8rem;
    border-radius: 20px;
    margin-top: 0.5rem;
}

/* ----- 合作案例专区 ----- */
.case-showcase {
    padding: 5rem 0;
    background: var(--gray-100);
}
.case-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
}
.case-card {
    background: white;
    border-radius: var(--radius);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
    transition: all 0.4s;
}
.case-card:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow-lg);
}
.case-img {
    height: 200px;
    overflow: hidden;
    background: var(--primary);
}
.case-img img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: 0.4s;
}
.case-card:hover .case-img img {
    transform: scale(1.08);
}
.case-info {
    padding: 1.5rem;
}
.case-info h3 {
    font-size: 1.1rem;
    margin-bottom: 0.5rem;
    color: var(--primary);
}
.case-info p {
    font-size: 0.85rem;
    color: var(--gray-600);
    line-height: 1.5;
}
.case-link {
    color: var(--secondary);
    font-weight: 600;
    font-size: 0.85rem;
}
.case-more {
    text-align: center;
    margin-top: 2.5rem;
}

/* ----- 定制优势 ----- */
.advantages {
    padding: 5rem 0;
    background: linear-gradient(135deg, var(--primary-dark), var(--primary));
    color: white;
}
.advantages .section-title h2,
.advantages .section-title p {
    color: white;
}
.advantages .section-tag {
    background: rgba(255,255,255,0.2);
    color: white;
}
.adv-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
}
.adv-item {
    text-align: center;
    padding: 2rem;
    background: rgba(255,255,255,0.1);
    backdrop-filter: blur(8px);
    border-radius: var(--radius);
    font-size: 2rem;
    transition: all 0.3s;
    border: 1px solid rgba(255,255,255,0.2);
}
.adv-item:hover {
    transform: translateY(-5px);
    background: rgba(255,255,255,0.2);
    border-color: var(--secondary);
}
.adv-item h4 {
    font-size: 1.2rem;
    margin: 0.8rem 0 0.5rem;
    color: white;
}
.adv-item p {
    font-size: 0.85rem;
    color: rgba(255,255,255,0.8);
}

/* ----- 实力见证 ----- */
.trust {
    padding: 5rem 0;
    background: var(--white);
}
.trust-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 2rem;
}
.trust-card {
    text-align: center;
    padding: 2rem;
    background: var(--bg-card);
    border-radius: var(--radius);
    box-shadow: var(--shadow-sm);
    transition: all 0.3s;
    border-bottom: 3px solid transparent;
}
.trust-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-md);
    border-bottom-color: var(--secondary);
}
.trust-icon {
    font-size: 2.5rem;
    margin-bottom: 1rem;
}
.trust-card h3 {
    font-size: 1.1rem;
    margin-bottom: 0.5rem;
    color: var(--primary);
}
.trust-card p {
    font-size: 0.85rem;
    color: var(--gray-600);
    line-height: 1.5;
}

/* ----- 客户评价 ----- */
.testimonials {
    padding: 5rem 0;
    background: var(--gray-100);
}
.testimonial-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
}
.testimonial-card {
    background: white;
    padding: 1.8rem;
    border-radius: var(--radius);
    box-shadow: var(--shadow-sm);
    transition: all 0.3s;
    border-left: 4px solid var(--secondary);
}
.testimonial-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-md);
}
.testimonial-card p {
    font-style: italic;
    margin-bottom: 1rem;
    font-size: 0.9rem;
    line-height: 1.6;
    color: var(--gray-600);
}
.client {
    font-weight: 600;
    color: var(--primary);
    font-size: 0.85rem;
}
.client-verified {
    font-size: 0.7rem;
    color: var(--secondary);
    margin-top: 0.3rem;
}

/* ----- 合作流程 + FAQ ----- */
.process-faq {
    padding: 5rem 0;
    background: linear-gradient(135deg, var(--primary-dark), var(--primary-darker));
    color: white;
}
.process-faq .container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
}
.process-steps {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 1.5rem;
}
.step {
    text-align: center;
}
.step-num {
    width: 60px;
    height: 60px;
    background: var(--secondary);
    color: var(--primary-dark);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.6rem;
    font-weight: 800;
    margin: 0 auto 1rem;
    box-shadow: 0 4px 14px rgba(0,0,0,0.3);
}
.step h4 {
    margin-bottom: 0.3rem;
    font-size: 1.1rem;
}
.step p {
    font-size: 0.85rem;
    opacity: 0.9;
}
.process-faq .faq-list {
    max-width: 100%;
}
.process-faq .faq-item {
    background: rgba(255,255,255,0.1);
    border-radius: 1rem;
    margin-bottom: 0.8rem;
    backdrop-filter: blur(4px);
    border-left: none;
    padding: 0;
}
.process-faq .faq-question {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 1.2rem;
    font-weight: 600;
    cursor: pointer;
    background: transparent;
    color: #ffffff;
}
.process-faq .faq-answer {
    max-height: 0;
    overflow: hidden;
    transition: 0.3s;
    padding: 0 1.2rem;
    color: #ffffff;
}
.process-faq .faq-item.active .faq-answer {
    max-height: 300px;
    padding: 0 1.2rem 1rem;
}

/* ----- 合作伙伴 ----- */
.partners {
    padding: 5rem 0;
    background: var(--white);
}
.partner-logos {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 2rem;
    align-items: center;
}
.partner-item {
    background: var(--gray-100);
    padding: 1rem 2rem;
    border-radius: 12px;
    font-weight: 600;
    color: var(--primary);
    transition: all 0.3s;
}
.partner-item:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-sm);
    background: var(--secondary);
    color: white;
}


/* ========================================
   4. 产品列表页 & 产品详情页
   ======================================== */

.product-list-main {
    padding: 3rem 0;
    background: var(--white);
}
.product-layout {
    display: grid;
    grid-template-columns: 280px 1fr;
    gap: 2rem;
}
.product-content {
    flex: 1;
}
.product-sidebar {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.category-header h1 {
    font-size: 28px;
    color: var(--primary);
    margin-bottom: 10px;
}
.product-toolbar {
    display: flex;
    justify-content: space-between;
    margin: 20px 0;
    padding-bottom: 10px;
    border-bottom: 1px solid var(--gray-200);
}
.toolbar-right a {
    margin-left: 15px;
    color: var(--gray-500);
    text-decoration: none;
}
.toolbar-right a.active {
    color: var(--secondary);
}

.product-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
}
.product-item {
    background: #fff;
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 2px 8px rgba(0,0,0,0.05);
    transition: transform 0.2s;
}
.product-item:hover {
    transform: translateY(-4px);
    box-shadow: 0 8px 20px rgba(0,0,0,0.1);
}
.product-img {
    height: 180px;
    overflow: hidden;
}
.product-img img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}
.product-info {
    padding: 15px;
}
.product-info h3 {
    font-size: 16px;
    margin-bottom: 8px;
}
.product-desc {
    font-size: 13px;
    color: var(--gray-500);
    margin-bottom: 12px;
    line-height: 1.4;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}
.product-meta {
    display: flex;
    justify-content: space-between;
    font-size: 12px;
    color: #a0aec0;
}

/* 产品详情页 */
.product-detail-layout {
    display: flex;
    gap: 40px;
    margin-bottom: 50px;
    flex-wrap: wrap;
}
.product-gallery {
    flex: 1;
    min-width: 280px;
}
.product-info-detail {
    flex: 1;
    min-width: 280px;
}
.main-image {
    position: relative;
    border-radius: 12px;
    overflow: hidden;
    cursor: pointer;
    box-shadow: 0 4px 12px rgba(0,0,0,0.1);
    margin-bottom: 15px;
}
.main-image img {
    width: 100%;
    height: auto;
    display: block;
}
.image-magnify {
    position: absolute;
    bottom: 12px;
    right: 12px;
    background: rgba(0,0,0,0.6);
    color: white;
    padding: 6px 12px;
    border-radius: 30px;
    font-size: 13px;
    cursor: pointer;
    transition: background 0.2s;
}
.image-magnify:hover {
    background: rgba(0,0,0,0.8);
}
.thumb-list {
    display: flex;
    gap: 10px;
    flex-wrap: wrap;
}
.thumb-item {
    width: 80px;
    height: 60px;
    border-radius: 8px;
    overflow: hidden;
    cursor: pointer;
    border: 2px solid transparent;
    transition: border 0.2s;
}
.thumb-item img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}
.thumb-item.active {
    border-color: var(--secondary);
}
.product-info-detail h1 {
    font-size: 28px;
    color: var(--primary);
    margin-bottom: 10px;
}
.product-meta-row {
    display: flex;
    gap: 20px;
    color: var(--gray-500);
    font-size: 14px;
    margin-bottom: 15px;
}
.product-price {
    background: #f0f4f9;
    padding: 12px 16px;
    border-radius: 10px;
    margin: 15px 0;
}
.price-label {
    font-weight: 600;
    color: var(--gray-700);
}
.price-value {
    font-size: 24px;
    font-weight: 700;
    color: var(--secondary);
    margin: 0 8px;
}
.price-note {
    font-size: 13px;
    color: var(--gray-500);
}
.product-short-desc p {
    color: var(--gray-600);
    line-height: 1.6;
    margin: 15px 0;
}
.product-actions {
    display: flex;
    gap: 15px;
    margin: 20px 0;
}
.product-features {
    background: #f9fafb;
    padding: 16px;
    border-radius: 12px;
}
.product-features h4 {
    margin-bottom: 10px;
    color: var(--primary);
}
.product-features ul {
    list-style: none;
    padding-left: 0;
}
.product-features li {
    margin-bottom: 6px;
    font-size: 14px;
}

.product-tabs {
    margin: 40px 0;
}
.tab-headers {
    display: flex;
    border-bottom: 2px solid var(--gray-200);
    gap: 20px;
}
.tab-btn {
    background: none;
    border: none;
    padding: 12px 0;
    font-size: 16px;
    font-weight: 600;
    color: var(--gray-500);
    cursor: pointer;
    transition: color 0.2s;
}
.tab-btn.active {
    color: var(--secondary);
    border-bottom: 2px solid var(--secondary);
    margin-bottom: -2px;
}
.tab-content {
    display: none;
    padding: 25px 0;
}
.tab-content.active {
    display: block;
}
.tab-content h3 {
    margin-bottom: 15px;
    color: var(--primary);
}
.tab-content ul {
    padding-left: 20px;
}
.tab-content li {
    margin-bottom: 8px;
}


/* 主图尺寸控制 - 正方形 */
.product-gallery .main-image img {
    width: 100%;
    max-width: 600px;
    aspect-ratio: 1 / 1;     /* 强制 1:1 正方形 */
    object-fit: cover;        /* 填满容器，裁剪超出部分 */
}

/* 缩略图尺寸控制 - 正方形 */
.thumb-list .thumb-item img {
    width: 80px;
    height: 80px;            /* 宽高一致，正方形 */
    object-fit: cover;
}

/* 移动端响应式调整 */
@media (max-width: 768px) {
    .product-gallery .main-image img {
        max-width: 100%;
        aspect-ratio: 1 / 1;
    }
    .thumb-list .thumb-item img {
        width: 60px;
        height: 60px;
    }
}

/* ========================================
   5. 新闻列表页 & 新闻详情页
   ======================================== */

.news-layout {
    display: flex;
    gap: 30px;
    flex-wrap: wrap;
}
.news-sidebar {
    width: 280px;
    flex-shrink: 0;
}
.news-content {
    flex: 1;
    min-width: 260px;
}

.hot-news-list {
    list-style: none;
    padding: 0;
}
.hot-news-list li {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 10px 0;
    border-bottom: 1px dashed var(--gray-200);
}
.hot-news-list li a {
    color: var(--gray-700);
    text-decoration: none;
}
.hot-news-list li a:hover {
    color: var(--secondary);
}
.hot-num {
    font-size: 12px;
    color: #a0aec0;
}

.news-list-grid {
    display: flex;
    flex-direction: column;
    gap: 30px;
}
.news-list-item {
    display: flex;
    gap: 20px;
    background: #fff;
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 2px 8px rgba(0,0,0,0.05);
    transition: transform 0.2s;
}
.news-list-item:hover {
    transform: translateY(-4px);
    box-shadow: 0 8px 20px rgba(0,0,0,0.1);
}
.news-img-link {
    flex-shrink: 0;
}
.news-img {
    width: 260px;
    height: 160px;
    overflow: hidden;
}
.news-img img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.3s;
}
.news-list-item:hover .news-img img {
    transform: scale(1.05);
}
.news-info {
    padding: 15px 15px 15px 0;
}
.news-info h2 {
    font-size: 20px;
    margin-bottom: 8px;
}
.news-info h2 a {
    color: var(--primary);
    text-decoration: none;
}
.news-info h2 a:hover {
    color: var(--secondary);
}
.news-meta {
    font-size: 13px;
    color: #a0aec0;
    margin-bottom: 12px;
}
.read-more {
    display: inline-block;
    margin-top: 12px;
    color: var(--secondary);
    font-weight: 600;
    text-decoration: none;
}

/* 新闻详情页 */
.news-detail-main {
    padding: 40px 0;
    background: #fff;
}
.news-detail-layout {
    display: flex;
    gap: 30px;
    flex-wrap: wrap;
}
.news-content-detail {
    flex: 1;
    min-width: 260px;
}
.news-sidebar-detail {
    width: 320px;
    flex-shrink: 0;
}
.article-header {
    margin-bottom: 20px;
    border-bottom: 1px solid var(--gray-200);
    padding-bottom: 15px;
}
.article-header h1 {
    font-size: 32px;
    color: var(--primary);
    margin-bottom: 10px;
}
.article-meta {
    font-size: 14px;
    color: var(--gray-500);
    display: flex;
    gap: 20px;
}
.article-body {
    font-size: 16px;
    line-height: 1.7;
    color: var(--gray-700);
}
.article-body h2 {
    font-size: 22px;
    margin: 25px 0 15px;
    color: var(--primary);
    padding-left: 10px;
    border-left: 4px solid var(--secondary);
}
.article-body p {
    margin-bottom: 16px;
}
.article-body ul {
    margin: 15px 0;
    padding-left: 25px;
}
.article-body li {
    margin-bottom: 8px;
}
.article-tags {
    margin-top: 30px;
    padding-top: 20px;
    border-top: 1px solid var(--gray-200);
    font-size: 14px;
}
.article-tags span {
    font-weight: 600;
    margin-right: 10px;
}
.article-tags a {
    display: inline-block;
    background: #f0f4f9;
    padding: 5px 12px;
    border-radius: 20px;
    margin-right: 8px;
    color: var(--primary);
    text-decoration: none;
    font-size: 13px;
}
.article-tags a:hover {
    background: var(--secondary);
    color: #fff;
}

/* 相关新闻/热点 */
.related-news {
    padding: 50px 0;
    background: #f9fafb;
}
.news-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
}
.news-card {
    background: #fff;
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 2px 8px rgba(0,0,0,0.05);
}
.news-card .news-img {
    height: 160px;
}
.news-card .news-content {
    padding: 15px;
}
.news-card h3 {
    font-size: 16px;
    margin-bottom: 8px;
}
.news-more {
    color: var(--secondary);
    font-size: 13px;
    text-decoration: none;
}

.related-faq {
    padding: 50px 0;
    background: #fff;
}
.faq-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
}
.faq-more-btn {
    text-align: center;
    margin-top: 30px;
}


/* ========================================
   6. FAQ 页面
   ======================================== */

.faq-main {
    padding: 40px 0;
    background: #fff;
}
.faq-layout {
    display: flex;
    gap: 30px;
    flex-wrap: wrap;
}
.faq-content {
    flex: 1;
    min-width: 260px;
}
.faq-sidebar {
    width: 320px;
    flex-shrink: 0;
}

.page-header {
    margin-bottom: 30px;
}
.page-header h1 {
    font-size: 32px;
    color: var(--primary);
    margin-bottom: 10px;
}
.page-header p {
    color: var(--gray-600);
    font-size: 16px;
}

.faq-categories {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    margin-bottom: 30px;
    border-bottom: 1px solid var(--gray-200);
    padding-bottom: 15px;
}
.cat-btn {
    background: #f1f5f9;
    border: none;
    padding: 8px 20px;
    border-radius: 40px;
    font-size: 14px;
    font-weight: 500;
    color: var(--gray-700);
    cursor: pointer;
    transition: all 0.2s;
}
.cat-btn:hover {
    background: var(--gray-200);
}
.cat-btn.active {
    background: var(--primary);
    color: #fff;
}

.faq-list-dynamic {
    margin-bottom: 30px;
}
.faq-item-dynamic {
    background: #fff;
    border: 1px solid var(--gray-200);
    border-radius: 12px;
    margin-bottom: 16px;
    overflow: hidden;
    transition: all 0.2s;
}
.faq-item-dynamic:hover {
    box-shadow: 0 4px 12px rgba(0,0,0,0.05);
}
.faq-question-dynamic {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 16px 20px;
    cursor: pointer;
    background: #f9fafb;
    transition: background 0.2s;
}
.faq-question-dynamic:hover {
    background: #f0f4f9;
}
.faq-q-icon {
    width: 28px;
    height: 28px;
    background: var(--primary);
    color: #fff;
    border-radius: 50%;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-weight: bold;
    font-size: 14px;
    flex-shrink: 0;
}
.faq-question-dynamic h3 {
    flex: 1;
    font-size: 16px;
    font-weight: 600;
    color: var(--gray-700);
    margin: 0;
}
.faq-toggle-icon {
    font-size: 20px;
    color: var(--gray-500);
    transition: transform 0.2s;
    font-weight: 600;
}
.faq-item-dynamic.open .faq-toggle-icon {
    transform: rotate(45deg);
}
.faq-answer-dynamic {
    display: none;
    padding: 0 20px 20px 60px;
    border-top: 1px solid var(--gray-200);
    background: #fff;
}
.faq-item-dynamic.open .faq-answer-dynamic {
    display: block;
}
.answer-short {
    color: var(--gray-600);
    line-height: 1.6;
    margin-bottom: 8px;
}
.more-detail-btn {
    background: none;
    border: none;
    color: var(--secondary);
    font-size: 13px;
    font-weight: 600;
    cursor: pointer;
    padding: 0;
    margin-top: 8px;
    display: inline-block;
}
.more-detail-btn:hover {
    text-decoration: underline;
}
.answer-full {
    display: none;
    margin-top: 12px;
    padding-top: 12px;
    border-top: 1px dashed var(--gray-200);
    color: var(--gray-600);
    line-height: 1.6;
}
.answer-full.show {
    display: block;
}

.pagination-container {
    display: flex;
    justify-content: center;
    gap: 8px;
    flex-wrap: wrap;
    margin: 30px 0 20px;
}
.page-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 40px;
    height: 40px;
    padding: 0 10px;
    border: 1px solid var(--gray-200);
    border-radius: 8px;
    background: #fff;
    color: var(--gray-700);
    font-size: 14px;
    cursor: pointer;
    transition: all 0.2s;
}
.page-btn:hover {
    background: #f1f5f9;
    border-color: #cbd5e1;
}
.page-btn.active {
    background: var(--primary);
    color: #fff;
    border-color: var(--primary);
}
.page-btn.disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

.more-help {
    text-align: center;
    padding: 20px;
    background: #f0f4f9;
    border-radius: 12px;
    margin-top: 20px;
}
.more-help a {
    color: var(--secondary);
    font-weight: 600;
    text-decoration: none;
}
.more-help a:hover {
    text-decoration: underline;
}


/* ========================================
   7. 合作案例页面
   ======================================== */

.case-main {
    padding: 40px 0;
    background: #fff;
}
.case-layout {
    display: flex;
    gap: 30px;
    flex-wrap: wrap;
}
.case-content {
    flex: 1;
    min-width: 260px;
}
.case-sidebar {
    width: 320px;
    flex-shrink: 0;
}

.case-filters {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    margin-bottom: 30px;
    padding-bottom: 15px;
    border-bottom: 1px solid var(--gray-200);
}
.filter-btn {
    background: #f1f5f9;
    border: none;
    padding: 8px 20px;
    border-radius: 40px;
    font-size: 14px;
    font-weight: 500;
    color: var(--gray-700);
    cursor: pointer;
    transition: all 0.2s;
}
.filter-btn:hover {
    background: var(--gray-200);
}
.filter-btn.active {
    background: var(--primary);
    color: #fff;
}

.case-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 25px;
    margin-bottom: 40px;
}
.case-card {
    background: #fff;
    border-radius: 16px;
    overflow: hidden;
    box-shadow: 0 4px 12px rgba(0,0,0,0.08);
    transition: transform 0.2s, box-shadow 0.2s;
    border: 1px solid var(--gray-200);
}
.case-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 12px 24px rgba(0,0,0,0.12);
}
.case-img-wrapper {
    position: relative;
    overflow: hidden;
    cursor: pointer;
}
.case-img {
    width: 100%;
    height: 220px;
    object-fit: cover;
    transition: transform 0.3s;
}
.case-card:hover .case-img {
    transform: scale(1.05);
}
.img-magnify-icon {
    position: absolute;
    bottom: 10px;
    right: 10px;
    background: rgba(0,0,0,0.6);
    color: #fff;
    width: 32px;
    height: 32px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 16px;
    opacity: 0;
    transition: opacity 0.2s;
    pointer-events: none;
}
.case-img-wrapper:hover .img-magnify-icon {
    opacity: 1;
}
.case-info {
    padding: 18px;
}
.case-info h3 {
    font-size: 18px;
    margin-bottom: 8px;
    color: var(--primary);
}
.case-desc {
    font-size: 14px;
    color: var(--gray-600);
    line-height: 1.5;
    margin-bottom: 12px;
}
.case-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-bottom: 12px;
}
.case-tags span {
    background: #f1f5f9;
    padding: 4px 10px;
    border-radius: 20px;
    font-size: 12px;
    color: var(--primary);
}
.case-stats {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 15px;
    padding: 8px 0;
    border-top: 1px dashed var(--gray-200);
    border-bottom: 1px dashed var(--gray-200);
    font-size: 13px;
    color: var(--secondary);
    font-weight: 500;
}
.case-link {
    display: inline-block;
    color: var(--secondary);
    font-weight: 600;
    text-decoration: none;
    font-size: 14px;
}
.case-link:hover {
    text-decoration: underline;
}

/* 案例灯箱（带标题） */
.lightbox-caption {
    color: #fff;
    margin-top: 15px;
    font-size: 14px;
    text-align: center;
    max-width: 80%;
}


/* ========================================
   8. 公司介绍页面
   ======================================== */

.about-main {
    padding: 40px 0;
    background: #fff;
}
.about-layout {
    display: flex;
    gap: 30px;
    flex-wrap: wrap;
}
.about-content {
    flex: 1;
    min-width: 260px;
}
.about-sidebar {
    width: 320px;
    flex-shrink: 0;
}

.company-header {
    margin-bottom: 30px;
    border-bottom: 1px solid var(--gray-200);
    padding-bottom: 15px;
}
.company-header h1 {
    font-size: 32px;
    color: var(--primary);
    margin-bottom: 8px;
}
.subtitle {
    font-size: 16px;
    color: var(--secondary);
    font-weight: 500;
}

.about-section {
    margin-bottom: 40px;
}
.about-section h2 {
    font-size: 24px;
    color: var(--primary);
    margin-bottom: 20px;
    padding-left: 12px;
    border-left: 4px solid var(--secondary);
}
.about-section p {
    color: var(--gray-700);
    line-height: 1.7;
    margin-bottom: 16px;
}

.culture-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
    margin-top: 10px;
}
.culture-card {
    text-align: center;
    padding: 20px;
    background: #f9fafb;
    border-radius: 12px;
    transition: transform 0.2s;
}
.culture-card:hover {
    transform: translateY(-5px);
}
.culture-icon {
    font-size: 36px;
}
.culture-card h3 {
    margin: 12px 0 8px;
    color: var(--primary);
}
.culture-card p {
    font-size: 14px;
    margin: 0;
}

.cert-gallery,
.factory-gallery {
    display: grid;
    gap: 20px;
}
.cert-gallery {
    grid-template-columns: repeat(4, 1fr);
}
.factory-gallery {
    grid-template-columns: repeat(3, 1fr);
}
.cert-item,
.factory-item {
    cursor: pointer;
    text-align: center;
    border-radius: 12px;
    overflow: hidden;
    transition: transform 0.2s;
    background: #f9fafb;
}
.cert-item:hover,
.factory-item:hover {
    transform: scale(1.02);
}
.cert-item img,
.factory-item img {
    width: 100%;
    height: auto;
    display: block;
    transition: opacity 0.2s;
}
.cert-item span,
.factory-item span {
    display: block;
    padding: 8px 0;
    font-size: 13px;
    color: var(--gray-700);
    background: #f9fafb;
}

/* 地图占位 */
.map-section {
    padding: 50px 0;
    background: #f9fafb;
}
.map-placeholder {
    position: relative;
    border-radius: 16px;
    overflow: hidden;
    box-shadow: 0 4px 12px rgba(0,0,0,0.1);
}
.map-placeholder img {
    width: 100%;
    height: auto;
    display: block;
}
.map-address {
    position: absolute;
    bottom: 20px;
    left: 20px;
    background: rgba(0,0,0,0.6);
    color: #fff;
    padding: 8px 16px;
    border-radius: 30px;
    font-size: 14px;
}

/* 合作伙伴（关于页） */
.partner-show {
    padding: 50px 0;
    background: #fff;
}
.partner-show .partner-logos {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 30px;
    align-items: center;
}
.partner-show .partner-item {
    background: #f1f5f9;
    padding: 12px 24px;
    border-radius: 40px;
    font-weight: 600;
    color: var(--primary);
    transition: 0.2s;
}
.partner-show .partner-item:hover {
    background: var(--secondary);
    color: #fff;
}

.about-intro {
    padding: 60px 0;
    background: #fff;
}
.about-content {
    display: flex;
    gap: 40px;
    align-items: center;
    flex-wrap: wrap;
}
.about-text {
    flex: 1;
}
.about-image {
    flex: 1;
}
.about-image img {
    width: 100%;
    border-radius: 16px;
    box-shadow: 0 4px 12px rgba(0,0,0,0.1);
}


/* ========================================
   9. 联系我们页面
   ======================================== */

.contact-main {
    padding: 40px 0;
    background: #fff;
}
.contact-layout {
    display: flex;
    gap: 30px;
    flex-wrap: wrap;
}
.contact-content {
    flex: 1;
    min-width: 260px;
}
.contact-sidebar {
    width: 320px;
    flex-shrink: 0;
}

.contact-form-wrapper {
    background: #f9fafb;
    border-radius: 16px;
    padding: 25px;
    margin-bottom: 35px;
    border: 1px solid var(--gray-200);
}
.contact-form-wrapper h2 {
    font-size: 22px;
    color: var(--primary);
    margin-bottom: 20px;
    padding-bottom: 10px;
    border-bottom: 2px solid var(--secondary);
    display: inline-block;
}
.contact-form .form-row {
    display: flex;
    gap: 20px;
    margin-bottom: 15px;
}
.contact-form .form-group {
    flex: 1;
    margin-bottom: 15px;
}
.contact-form label {
    display: block;
    font-weight: 600;
    margin-bottom: 6px;
    color: var(--gray-700);
}
.contact-form input,
.contact-form select,
.contact-form textarea {
    width: 100%;
    padding: 12px;
    border: 1px solid var(--gray-200);
    border-radius: 8px;
    font-size: 15px;
    transition: border-color 0.2s;
}
.contact-form input:focus,
.contact-form select:focus,
.contact-form textarea:focus {
    outline: none;
    border-color: var(--secondary);
}
.captcha-row {
    display: flex;
    align-items: center;
    gap: 12px;
}
.captcha-row input {
    flex: 2;
}
.captcha-code {
    flex: 1;
    background: #f1f5f9;
    padding: 10px;
    text-align: center;
    border-radius: 8px;
    font-weight: 600;
}
.refresh-captcha {
    background: none;
    border: none;
    font-size: 20px;
    cursor: pointer;
    padding: 8px;
}
.submit-btn {
    margin-top: 10px;
    width: 100%;
}
.form-note {
    font-size: 12px;
    color: var(--gray-500);
    margin-top: 12px;
    text-align: center;
}

.contact-info-block {
    margin-bottom: 35px;
}
.contact-info-block h2 {
    font-size: 22px;
    color: var(--primary);
    margin-bottom: 20px;
}
.info-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
}
.info-item {
    display: flex;
    gap: 15px;
    background: #f9fafb;
    padding: 18px;
    border-radius: 12px;
    transition: transform 0.2s;
}
.info-item:hover {
    transform: translateY(-3px);
    background: #f0f4f9;
}
.info-icon {
    font-size: 32px;
}
.info-detail h3 {
    font-size: 16px;
    margin-bottom: 6px;
    color: var(--primary);
}
.info-detail p {
    margin: 0;
    font-size: 14px;
    color: var(--gray-700);
}
.info-detail .sub {
    font-size: 12px;
    color: var(--gray-500);
}
.info-detail a {
    color: var(--gray-700);
    text-decoration: none;
}
.info-detail a:hover {
    color: var(--secondary);
}

.map-container {
    margin-top: 20px;
}
.map-container h2 {
    font-size: 22px;
    color: var(--primary);
    margin-bottom: 15px;
}
.map-container .map-placeholder {
    border-radius: 12px;
    overflow: hidden;
    border: 1px solid var(--gray-200);
    height: 300px;
}

/* 快速联系卡片（深色） */
.quick-contact-card {
    background: linear-gradient(135deg, var(--primary), var(--primary-dark));
    color: #fff;
    text-align: center;
}
.quick-contact-card .sidebar-card h3 {
    color: #fff;
    border-bottom-color: var(--secondary);
}
.quick-contact-card .urgent-tel {
    margin-top: 15px;
    font-size: 18px;
    font-weight: bold;
}
.quick-contact-card a {
    color: var(--secondary);
    text-decoration: none;
}
.quick-contact-card .btn-primary {
    background: var(--secondary);
    margin: 15px 0;
}
.quick-contact-card .btn-primary:hover {
    background: var(--secondary-dark);
}


/* ========================================
   10. 侧边栏通用组件（补遗）
   ======================================== */

/* 报价卡片（深色） */
.quote-card {
    background: linear-gradient(135deg, var(--primary), var(--primary-dark));
    color: #fff;
    text-align: center;
}
.quote-card h3 {
    color: #fff;
    border-bottom-color: var(--secondary);
}
.quote-card .btn-primary {
    background: var(--secondary);
    margin: 15px 0;
}
.quote-card .btn-primary:hover {
    background: var(--secondary-dark);
}
.quote-tel {
    font-size: 13px;
    opacity: 0.8;
}

/* FAQ侧边栏列表 */
.faq-list-sidebar {
    margin-bottom: 15px;
}
.faq-item-sidebar {
    margin-bottom: 12px;
    padding-bottom: 10px;
    border-bottom: 1px solid #f0f4f9;
}
.faq-question-sidebar {
    font-weight: 600;
    color: var(--primary);
    font-size: 14px;
    margin-bottom: 4px;
}
.faq-answer-sidebar {
    font-size: 13px;
    color: var(--gray-600);
    padding-left: 10px;
}
.more-faq {
    display: inline-block;
    font-size: 13px;
    color: var(--secondary);
    text-decoration: none;
}
.more-faq:hover {
    text-decoration: underline;
}

/* 推荐新闻列表 */
.recommend-news-list {
    list-style: none;
    padding: 0;
}
.recommend-news-list li {
    padding: 10px 0;
    border-bottom: 1px dashed var(--gray-200);
}
.recommend-news-list li a {
    color: var(--gray-700);
    text-decoration: none;
}
.recommend-news-list li a:hover {
    color: var(--secondary);
}

/* 联系方式卡片（白色底） */
.contact-card {
    text-align: center;
    background: linear-gradient(135deg, var(--primary), var(--primary-dark));
    color: #fff;
}
.contact-card h3 {
    color: #fff;
    border-bottom-color: var(--secondary);
}
.contact-card p {
    margin-bottom: 1rem;
    opacity: 0.9;
}
.contact-card .btn-primary {
    background: var(--secondary);
    margin: 15px 0;
}
.contact-card .btn-primary:hover {
    background: var(--secondary-dark);
}
.contact-info p {
    font-size: 13px;
    margin: 6px 0;
}


/* ========================================
   11. 响应式布局
   ======================================== */

@media (max-width: 1024px) {
    .category-grid,
    .case-grid,
    .adv-grid,
    .trust-grid,
    .testimonial-grid,
    .data-grid-3d,
    .advantage-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    .materials-grid-3d,
    .solutions-grid-3d {
        grid-template-columns: repeat(2, 1fr);
    }
    .process-faq .container {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
    .footer-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    .news-grid,
    .faq-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    .cert-gallery {
        grid-template-columns: repeat(2, 1fr);
    }
    .factory-gallery {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 992px) {
    .product-layout,
    .news-layout,
    .news-detail-layout,
    .faq-layout,
    .case-layout,
    .about-layout,
    .contact-layout {
        flex-direction: column;
    }
    .product-sidebar,
    .news-sidebar,
    .news-sidebar-detail,
    .faq-sidebar,
    .case-sidebar,
    .about-sidebar,
    .contact-sidebar {
        width: 100%;
    }
    .product-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    .case-grid {
        grid-template-columns: 1fr;
    }
    .info-grid {
        grid-template-columns: 1fr;
    }
    .news-list-item {
        flex-direction: column;
    }
    .news-img {
        width: 100%;
        height: auto;
    }
    .news-info {
        padding: 15px;
    }
}

@media (max-width: 768px) {
    .nav {
        display: none;
    }
    .mobile-toggle {
        display: block;
    }
    .hero-inner {
        grid-template-columns: 1fr;
        text-align: center;
    }
    .hero-content h1 {
        font-size: 2.2rem;
    }
    .hero-stats {
        justify-content: center;
    }
    .category-grid,
    .case-grid,
    .adv-grid,
    .trust-grid,
    .testimonial-grid,
    .data-grid-3d,
    .materials-grid-3d,
    .solutions-grid-3d,
    .advantage-grid,
    .news-grid,
    .faq-grid,
    .culture-grid,
    .cert-gallery,
    .factory-gallery {
        grid-template-columns: 1fr;
    }
    .process-steps {
        grid-template-columns: 1fr;
    }
    .footer-grid {
        grid-template-columns: 1fr;
        text-align: center;
    }
    .footer-links {
        flex-direction: column;
        align-items: center;
        gap: 0.5rem;
    }
    .cta-inner {
        flex-direction: column;
        text-align: center;
    }
    .has-sub .sub-nav {
        position: static;
        opacity: 1;
        visibility: hidden;
        height: 0;
        padding: 0;
        box-shadow: none;
    }
    .has-sub.open .sub-nav {
        visibility: visible;
        height: auto;
        padding: 0.5rem 0 0.5rem 1rem;
    }
    .product-grid {
        grid-template-columns: 1fr;
    }
    .article-header h1,
    .company-header h1,
    .page-header h1 {
        font-size: 24px;
    }
    .article-meta {
        flex-wrap: wrap;
        gap: 10px;
    }
    .cta-text h2 {
        font-size: 22px;
    }
    .contact-form .form-row {
        flex-direction: column;
        gap: 0;
    }
    .faq-question-dynamic {
        padding: 12px 16px;
    }
    .faq-answer-dynamic {
        padding: 0 16px 16px 50px;
    }
    .cat-btn,
    .filter-btn {
        padding: 6px 14px;
        font-size: 12px;
    }
    .case-img {
        height: 180px;
    }
    .case-stats {
        flex-direction: column;
        align-items: flex-start;
        gap: 5px;
    }
    .map-address {
        font-size: 10px;
        bottom: 10px;
        left: 10px;
    }
    .product-detail-layout {
        flex-direction: column;
    }
    .thumb-item {
        width: 70px;
        height: 50px;
    }
    .product-info-detail h1 {
        font-size: 22px;
    }
    .price-value {
        font-size: 20px;
    }
    .product-actions {
        flex-direction: column;
        align-items: stretch;
    }
    .tab-headers {
        gap: 10px;
        overflow-x: auto;
    }
    .tab-btn {
        font-size: 14px;
        white-space: nowrap;
    }
    .news-info h2 {
        font-size: 18px;
    }
}


/* ========== 修复 related-faq 区域 FAQ 显示（精致版） ========== */
.related-faq .faq-item {
    background: #ffffff !important;
    backdrop-filter: none !important;
    border: 1px solid var(--gray-200) !important;
    border-radius: 12px !important;
    padding: 0 !important;
    margin-bottom: 12px !important;
    box-shadow: 0 2px 8px rgba(0,0,0,0.04) !important;
    transition: box-shadow 0.3s ease !important;
}

.related-faq .faq-item:hover {
    box-shadow: 0 4px 16px rgba(0,0,0,0.08) !important;
}

.related-faq .faq-question {
    color: var(--gray-700) !important;
    padding: 16px 18px !important;
    margin-bottom: 0 !important;
    background: transparent !important;
    cursor: pointer !important;
    display: flex !important;
    align-items: center !important;
    gap: 12px !important;
    font-size: 15px !important;
    font-weight: 600 !important;
    border-radius: 12px 12px 0 0 !important;
    transition: background 0.2s ease !important;
}

.related-faq .faq-question:hover {
    background: #f8fafc !important;
}

.related-faq .faq-answer {
    max-height: 0 !important;
    overflow: hidden !important;
    transition: max-height 0.35s ease, padding 0.35s ease !important;
    padding: 0 18px !important;
    color: var(--gray-600) !important;
    background: transparent !important;
    display: block !important;
    font-size: 14px !important;
    line-height: 1.7 !important;
}

.related-faq .faq-item.active .faq-answer {
    max-height: 500px !important;
    padding: 0 18px 18px 18px !important;
}

/* Q / A 圆圈样式 - 更精致 */
.related-faq .faq-q {
    background: var(--primary) !important;
    color: #fff !important;
    width: 28px !important;
    height: 28px !important;
    border-radius: 50% !important;
    display: inline-flex !important;
    align-items: center !important;
    justify-content: center !important;
    font-size: 13px !important;
    font-weight: 700 !important;
    flex-shrink: 0 !important;
}

.related-faq .faq-a {
    background: var(--secondary) !important;
    color: #fff !important;
    width: 28px !important;
    height: 28px !important;
    border-radius: 50% !important;
    display: inline-flex !important;
    align-items: center !important;
    justify-content: center !important;
    font-size: 13px !important;
    font-weight: 700 !important;
    flex-shrink: 0 !important;
}

/* 答案内容与 A 圆圈对齐 */
.related-faq .faq-answer {
    display: flex !important;
    gap: 12px !important;
    align-items: flex-start !important;
}

/* 答案中的 A 圆圈在折叠时隐藏，展开时显示 */
.related-faq .faq-answer .faq-a {
    display: inline-flex !important;
}

/* 添加一个展开/收起的指示器（可选） */
.related-faq .faq-question::after {
    content: '▾' !important;
    margin-left: auto !important;
    font-size: 14px !important;
    color: var(--gray-400) !important;
    transition: transform 0.3s ease !important;
}

.related-faq .faq-item.active .faq-question::after {
    transform: rotate(180deg) !important;
}



/* ========== 留言页面专属样式 ========== */
.message-main {
    padding: 40px 0;
    background: #fff;
}
.message-layout {
    display: flex;
    gap: 30px;
    flex-wrap: wrap;
}
.message-content {
    flex: 1;
    min-width: 260px;
}
.message-sidebar {
    width: 320px;
    flex-shrink: 0;
}

/* 表单样式增强 */
.message-form-wrapper {
    background: #f9fafb;
    border-radius: 16px;
    padding: 30px;
    margin-bottom: 35px;
    border: 1px solid #e2e8f0;
}
.message-form .form-row {
    display: flex;
    gap: 20px;
    margin-bottom: 15px;
}
.message-form .form-group {
    flex: 1;
    margin-bottom: 15px;
}
.message-form label {
    display: block;
    font-weight: 600;
    margin-bottom: 6px;
    color: #2d3748;
}
.message-form input,
.message-form select,
.message-form textarea {
    width: 100%;
    padding: 12px;
    border: 1px solid #e2e8f0;
    border-radius: 8px;
    font-size: 15px;
    transition: border-color 0.2s;
}
.message-form input:focus,
.message-form select:focus,
.message-form textarea:focus {
    outline: none;
    border-color: #f59e0b;
}
.required {
    color: #e53e3e;
}
.captcha-row {
    display: flex;
    align-items: center;
    gap: 12px;
    flex-wrap: wrap;
}
.captcha-row .captcha-input {
    flex: 2;
}
.captcha-row .captcha-image {
    flex: 1;
    display: flex;
    align-items: center;
    gap: 8px;
}
.captcha-img {
    border-radius: 8px;
    cursor: pointer;
    height: 42px;
}
.refresh-captcha {
    background: none;
    border: none;
    font-size: 20px;
    cursor: pointer;
    padding: 4px 8px;
}
.submit-btn {
    width: 100%;
    margin-top: 10px;
}
.form-note {
    font-size: 12px;
    color: #718096;
    margin-top: 12px;
    text-align: center;
}
/* 快速联系信息 */
.contact-info-block {
    margin-bottom: 35px;
}
.contact-info-block h2 {
    font-size: 22px;
    color: #1e5a99;
    margin-bottom: 20px;
}
.info-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
}
.info-item {
    display: flex;
    gap: 15px;
    background: #f9fafb;
    padding: 18px;
    border-radius: 12px;
    transition: transform 0.2s;
}
.info-item:hover {
    transform: translateY(-3px);
    background: #f0f4f9;
}
.info-icon {
    font-size: 32px;
}
.info-detail h3 {
    font-size: 16px;
    margin-bottom: 6px;
    color: #1e5a99;
}
.info-detail p {
    margin: 0;
    font-size: 14px;
    color: #2d3748;
}
.info-detail .sub {
    font-size: 12px;
    color: #718096;
}
/* 侧边栏快速联系卡片（已在 style.css 中有类似，可覆盖） */
.quick-contact-card {
    background: linear-gradient(135deg, #1e5a99, #0a3a62);
    color: #fff;
    text-align: center;
}
.quick-contact-card h3 {
    color: #fff;
    border-bottom-color: #f59e0b;
}
.quick-contact-card .urgent-tel {
    margin-top: 15px;
    font-size: 18px;
    font-weight: bold;
}
.quick-contact-card .btn-primary {
    background: #f59e0b;
    margin: 15px 0;
}
.quick-contact-card .btn-primary:hover {
    background: #d97706;
}
@media (max-width: 992px) {
    .message-layout {
        flex-direction: column;
    }
    .message-sidebar {
        width: 100%;
    }
    .info-grid {
        grid-template-columns: 1fr;
    }
}
@media (max-width: 768px) {
    .message-form .form-row {
        flex-direction: column;
        gap: 0;
    }
}

/* Logo 容器 */
.logo {
    display: flex;
    align-items: center;        /* 垂直居中 */
}

/* Logo 链接（flex 容器） */
.logo-link {
    display: flex;
    align-items: center;
    text-decoration: none;
    gap: 10px;                  /* 图片与文字间距 */
}

/* Logo 图片 */
.logo-img {
    height: 50px;               /* 固定高度，宽度自适应 */
    width: auto;
    max-height: 60px;           /* 限制最大高度，防止过大 */
    object-fit: contain;        /* 保持比例，不拉伸 */
    flex-shrink: 0;             /* 防止图片被压缩 */
}

/* Logo 文字 */
.logo-text {
    font-size: 1.5rem;
    font-weight: 700;
    color: #1E5A99;
    white-space: nowrap;        /* 文字不换行 */
}

.logo-text span {
    font-weight: 300;
    color: #333;
}

/* 移动端适配 */
@media (max-width: 768px) {
    .logo-img {
        height: 36px;           /* 移动端缩小图片 */
    }
    .logo-text {
        font-size: 1.2rem;
    }
    .logo-link {
        gap: 6px;
    }
}

/* 小屏手机 */
@media (max-width: 480px) {
    .logo-img {
        height: 28px;
    }
    .logo-text {
        font-size: 1rem;
    }
}

/* ========================================
   公司介绍 - about-content 内部样式优化
   ======================================== */

.about-content {
    display: flex;
    gap: 50px;
    align-items: center;
    flex-wrap: wrap;
    padding: 20px 0;
}

.about-text {
    flex: 1.2;  /* 文字区域稍宽 */
    min-width: 280px;
}

.about-text p {
    font-size: 1.05rem;
    line-height: 1.9;
    color: var(--gray-700);
    margin-bottom: 1.2rem;
}

.about-text p:first-of-type {
    font-size: 1.1rem;
    color: var(--primary-dark);
    font-weight: 500;
}

.about-text .btn-outline {
    margin-top: 0.5rem;
    padding: 0.7rem 2rem;
    border-radius: 50px;
    font-weight: 600;
    border: 2px solid var(--primary);
    color: var(--primary);
    background: transparent;
    transition: all 0.3s ease;
    display: inline-block;
}

.about-text .btn-outline:hover {
    background: var(--primary);
    color: #fff;
    transform: translateY(-3px);
    box-shadow: var(--shadow-blue);
}

.about-image {
    flex: 1;
    min-width: 280px;
}

.about-image img,
.about-image picture img {
    width: 100%;
    height: auto;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
    transition: transform 0.4s ease, box-shadow 0.4s ease;
    display: block;
    aspect-ratio: 4 / 3;   /* 统一比例，更美观 */
    object-fit: cover;
}

.about-image img:hover {
    transform: scale(1.01);
    box-shadow: var(--shadow-lg);
}

/* 如果有多个图片（用 {pboot:pics} 循环） */
.about-images-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    gap: 16px;
    margin-top: 16px;
}

.about-images-grid img {
    width: 100%;
    aspect-ratio: 1 / 1;
    object-fit: cover;
    border-radius: var(--radius);
    box-shadow: var(--shadow-sm);
    transition: transform 0.3s ease;
}

.about-images-grid img:hover {
    transform: scale(1.03);
    box-shadow: var(--shadow-md);
}

/* 移动端适配 */
@media (max-width: 768px) {
    .about-content {
        gap: 30px;
        padding: 10px 0;
    }
    .about-text p {
        font-size: 0.95rem;
        line-height: 1.8;
    }
    .about-image img,
    .about-image picture img {
        aspect-ratio: 16 / 10;
    }
    .about-text .btn-outline {
        width: 100%;
        text-align: center;
        padding: 0.7rem 1rem;
    }
}