/* ===== BANNER SECTION ===== */
.banner-section {
    position: relative;
    width: 100%;
    height: 600px;
    background: var(--slate-900);
    overflow: hidden;
    user-select: none;
}
/* ================== 背景图与动态展开动画 ================== */
.banner-bg {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
    z-index: 0;
    /* 首次打开的动态展开（轻微放大然后缩小至正常尺寸并渐显） */
    opacity: 0;
    transform: scale(1.15);
    animation: expandBannerBg 1.5s cubic-bezier(0.22, 1, 0.36, 1) forwards;
}

@keyframes expandBannerBg {
    0% {
        opacity: 0;
        transform: scale(1.15);
    }
    100% {
        opacity: 1;
        transform: scale(1);
    }
}
/* ================== 深色渐变遮罩层 ================== */
.banner-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    /* 使用深蓝色(slate-900)半透明渐变，保证不影响文字和产品图片的阅读 */
    background: linear-gradient(135deg, rgba(15, 23, 42, 0.85) 0%, rgba(15, 23, 42, 0.65) 100%);
    z-index: 1;
}
.banner-container {
    width: 100%;
    height: 100%;
    position: relative;
    z-index: 2; /* 提升层级，确保内容在遮罩层之上 */
}

.banner-slide {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    padding: 0 60px;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.8s ease, visibility 0.8s ease;
    z-index: 1;
}

.banner-slide.active {
    opacity: 1;
    visibility: visible;
    z-index: 10;
}

.banner-slide.exit {
    opacity: 0;
    visibility: hidden;
    z-index: 5;
}

.banner-slide-inner {
    width: 100%;
    max-width: 1400px;
    margin: 0 auto;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 40px;
    height: 100%;
}

.banner-text {
    flex: 1;
    max-width: 580px;
    display: flex;
    flex-direction: column;
    gap: 6px;
    color: var(--white);
    position: relative;
    z-index: 2;
}

.banner-text .tag {
    display: inline-block;
    background: rgba(255, 255, 255, 0.12);
    backdrop-filter: blur(4px);
    padding: 3px 16px;
    border-radius: 100px;
    font-size: 11px;
    font-weight: 600;
    letter-spacing: 0.8px;
    text-transform: uppercase;
    color: rgba(255, 255, 255, 0.8);
    border: 1px solid rgba(255, 255, 255, 0.08);
    width: fit-content;
    margin-bottom: 4px;
    opacity: 0;
    transform: translateY(20px);
}

.banner-text .tag.animate {
    animation: fadeUp 0.6s ease forwards;
    animation-delay: 0.05s;
}

.banner-text h1 {
    font-size: 44px;
    font-weight: 700;
    color: var(--white);
    letter-spacing: -0.02em;
    line-height: 1.1;
    margin: 0;
    opacity: 0;
    transform: translateY(24px);
}

.banner-text h1.animate {
    animation: fadeUp 0.7s ease forwards;
    animation-delay: 0.2s;
}

.banner-text h1 .highlight {
    color: var(--blue-500);
}
.banner-text h1 .highlight-red {
    color: var(--red-500);
}

.banner-text .subtitle {
    font-size: 18px;
    font-weight: 500;
    color: rgba(255, 255, 255, 0.7);
    margin-top: 2px;
    opacity: 0;
    transform: translateY(20px);
}

.banner-text .subtitle.animate {
    animation: fadeUp 0.6s ease forwards;
    animation-delay: 0.35s;
}

.banner-text .description {
    font-size: 15px;
    line-height: 1.7;
    color: rgba(255, 255, 255, 0.6);
    max-width: 480px;
    margin-top: 4px;
    opacity: 0;
    transform: translateY(20px);
}

.banner-text .description.animate {
    animation: fadeUp 0.6s ease forwards;
    animation-delay: 0.5s;
}

.banner-text .btn-banner {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 12px 32px;
    background: var(--red-600);
    color: var(--white);
    font-weight: 600;
    font-size: 14px;
    border-radius: 8px;
    transition: all 0.25s ease;
    margin-top: 12px;
    width: fit-content;
    box-shadow: 0 4px 20px rgba(163, 0, 0, 0.30);
    opacity: 0;
    transform: translateY(20px);
}

.banner-text .btn-banner.animate {
    animation: fadeUp 0.6s ease forwards;
    animation-delay: 0.65s;
}

.banner-text .btn-banner:hover {
    background: var(--red-500);
    transform: translateY(-2px);
    box-shadow: 0 8px 32px rgba(163, 0, 0, 0.40);
}

.banner-text .btn-banner i {
    transition: transform 0.2s ease;
    font-size: 13px;
}

.banner-text .btn-banner:hover i {
    transform: translateX(4px);
}

.banner-image {
    flex: 1;
    max-width: 50%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    opacity: 0;
    transform: translateX(60px);
}

.banner-image.animate {
    animation: slideRight 0.8s cubic-bezier(0.22, 1, 0.36, 1) forwards;
    animation-delay: 0.25s;
}

.banner-image img {
    width: 100%;
    max-width: 520px;
    height: auto;
    aspect-ratio: 1.2 / 1;
    border-radius: 20px;
    object-fit: cover;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.30);
    transition: transform 0.3s ease;
}

.banner-image img:hover {
    transform: scale(1.01);
}

.banner-progress {
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 4px;
    background: rgba(255, 255, 255, 0.10);
    z-index: 20;
    overflow: hidden;
}

.banner-progress .progress-fill {
    height: 100%;
    width: 0%;
    background: var(--blue-500);
    transition: width 0.08s linear;
    box-shadow: 0 0 12px rgba(0, 104, 204, 0.30);
}

.banner-controls {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    z-index: 20;
    display: flex;
    justify-content: space-between;
    width: 100%;
    padding: 0 24px;
    pointer-events: none;
}

.banner-controls button {
    width: 44px;
    height: 44px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.08);
    backdrop-filter: blur(8px);
    border: 1px solid rgba(255, 255, 255, 0.10);
    color: rgba(255, 255, 255, 0.70);
    font-size: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.25s ease;
    pointer-events: auto;
    cursor: pointer;
}

.banner-controls button:hover {
    background: rgba(255, 255, 255, 0.18);
    color: var(--white);
    transform: scale(1.05);
}

.banner-controls button:active {
    transform: scale(0.95);
}

.banner-dots {
    position: absolute;
    bottom: 20px;
    left: 50%;
    transform: translateX(-50%);
    z-index: 20;
    display: flex;
    gap: 10px;
    align-items: center;
}

.banner-dots .dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.20);
    border: none;
    padding: 0;
    cursor: pointer;
    transition: all 0.3s ease;
}

.banner-dots .dot.active {
    background: var(--white);
    width: 24px;
    border-radius: 4px;
}

.banner-dots .dot:hover {
    background: rgba(255, 255, 255, 0.50);
}

@keyframes fadeUp {
    0% {
        opacity: 0;
        transform: translateY(24px);
    }
    100% {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes slideRight {
    0% {
        opacity: 0;
        transform: translateX(60px);
    }
    100% {
        opacity: 1;
        transform: translateX(0);
    }
}

/* ===== ABOUT SECTION ===== */
.about-section {
    padding: 80px 24px 88px;
    background: var(--white);
}

.about-container {
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    align-items: center;
    gap: 64px;
}

.about-content {
    flex: 1;
    min-width: 0;
}

.about-tag {
    display: inline-block;
    font-size: 11px;
    font-weight: 700;
    letter-spacing: 2px;
    text-transform: uppercase;
    color: var(--red-600);
    margin-bottom: 6px;
}

.about-title {
    font-size: 34px;
    font-weight: 700;
    color: var(--slate-900);
    letter-spacing: -0.02em;
    line-height: 1.15;
    margin-bottom: 16px;
}

.about-text {
    font-size: 15px;
    line-height: 1.8;
    color: var(--slate-600);
    margin-bottom: 12px;
    max-width: 540px;
}

.about-text p {
    margin-bottom: 12px;
}

.about-text p:last-child {
    margin-bottom: 0;
}

.about-cta {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 12px 32px;
    background: var(--red-600);
    color: var(--white);
    font-weight: 600;
    font-size: 14px;
    border-radius: 8px;
    transition: all 0.25s ease;
    box-shadow: 0 4px 20px rgba(163, 0, 0, 0.25);
    margin-top: 8px;
}

.about-cta:hover {
    background: var(--red-500);
    transform: translateY(-2px);
    box-shadow: 0 8px 32px rgba(163, 0, 0, 0.35);
}

.about-cta i {
    font-size: 13px;
    transition: transform 0.2s ease;
}

.about-cta:hover i {
    transform: translateX(4px);
}

.about-video {
    flex: 1;
    min-width: 0;
}

.video-wrapper {
    position: relative;
    width: 100%;
    border-radius: 14px;
    overflow: hidden;
    box-shadow: 0 12px 48px rgba(0, 0, 0, 0.08);
    background: var(--slate-900);
}
@supports not (aspect-ratio: 16 / 9) {
    .video-wrapper {
        height: 0;
        padding-bottom: 56.25%; /* 16:9 比例 (9 / 16 = 56.25%) */
    }
}
.video-wrapper:has(iframe) {
    aspect-ratio: 16 / 9;
}
.video-wrapper iframe {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    border: none;
}
.video-wrapper img {
    display: block;
    width: 100%;
    height: auto; /* 关键：高度根据图片原始宽高比自动计算，绝不拉伸/压缩 */
    object-fit: contain; /* 保证整张图完整显示 */
    border-radius: 14px;
}
/* ===== BANNER CTA ===== */
.banner-cta {
    position: relative;
    background-color: var(--blue-600);
    /* 组合渐变背景：左右两端微光 + 双向 45° 精密交叉斜线纹路 */
    background-image: 
        radial-gradient(circle at 10% 20%, rgba(255, 255, 255, 0.12) 0%, transparent 40%),
        radial-gradient(circle at 90% 80%, rgba(15, 23, 42, 0.35) 0%, transparent 50%),
        repeating-linear-gradient(45deg, rgba(255, 255, 255, 0.04) 0px, rgba(255, 255, 255, 0.04) 1px, transparent 1px, transparent 28px),
        repeating-linear-gradient(-45deg, rgba(255, 255, 255, 0.02) 0px, rgba(255, 255, 255, 0.02) 1px, transparent 1px, transparent 14px);
    padding: 48px 24px;
    width: 100%;
    overflow: hidden;
    border-top: 1px solid rgba(255, 255, 255, 0.08);
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}
.banner-cta::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-image: url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%23ffffff' fill-opacity='0.05'%3E%3Cpath d='M36 34v-4h-2v4h-4v2h4v4h2v-4h4v-2h-4zm0-30V0h-2v4h-4v2h4v4h2V6h4V4h-4zM6 34v-4H4v4H0v2h4v4h2v-4h4v-2H6zM6 4V0H4v4H0v2h4v4h2V6h4V4H6z'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");
    opacity: 0.7;
    pointer-events: none;
    z-index: 1;
}
.banner-cta-inner {
    position: relative; /* 确保文字内容在背景线条遮罩层上方 */
    z-index: 2;
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    flex-wrap: wrap;
    justify-content: space-between;
    align-items: center;
    gap: 32px 48px;
}

.banner-cta-text {
    flex: 1 1 320px;
    color: var(--white);
}

.banner-cta-title {
    font-size: 22px;
    font-weight: 700;
    color: var(--white);
    margin: 0 0 4px 0;
    line-height: 1.2;
}

.banner-cta-desc {
    font-size: 15px;
    color: rgba(255, 255, 255, 0.80);
    margin: 0;
    line-height: 1.6;
    max-width: 480px;
}

.banner-cta-stats {
    display: flex;
    flex-wrap: wrap;
    gap: 24px 40px;
    flex: 0 1 auto;
}

.stat-item {
    color: var(--white);
    text-align: left;
}

.stat-item:not(:first-child) {
    padding-left: 32px;
    border-left: 1px solid rgba(255, 255, 255, 0.20);
}

.stat-number {
    font-size: 28px;
    font-weight: 700;
    color: var(--white);
    margin: 0;
    line-height: 1.1;
}

.stat-label {
    font-size: 10px;
    text-transform: uppercase;
    letter-spacing: 1.5px;
    color: rgba(255, 255, 255, 0.60);
    margin: 2px 0 0 0;
}

/* ===== FEATURED PRODUCTS SECTION (新增方案一：热门产品推荐) ===== */
.featured-products-section {
    padding: 80px 24px 88px;
}

.featured-products-container {
    max-width: 1200px;
    margin: 0 auto;
}

.featured-products-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-end;
    gap: 24px;
    margin-bottom: 48px;
}

.featured-products-tag {
    display: inline-block;
    font-size: 11px;
    font-weight: 700;
    letter-spacing: 2px;
    text-transform: uppercase;
    color: var(--blue-500);
    margin-bottom: 6px;
}

.featured-products-title {
    font-size: 34px;
    font-weight: 700;
    color: var(--slate-900);
    letter-spacing: -0.02em;
    line-height: 1.15;
    margin: 0;
}

.featured-products-desc {
    max-width: 420px;
    font-size: 14px;
    color: var(--slate-500);
    line-height: 1.6;
    margin: 0;
}

.featured-products-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
}

.featured-card {
    background: var(--white);
    border: 1px solid var(--slate-200);
    border-radius: 14px;
    overflow: hidden;
    display: flex;
    flex-direction: column;
    transition: all 0.35s cubic-bezier(0.22, 1, 0.36, 1);
    position: relative;
}

.featured-card:hover {
    border-color: var(--blue-500);
    transform: translateY(-6px);
    box-shadow: 0 16px 40px rgba(0, 0, 0, 0.08);
}

.featured-card-image {
    width: 100%;
    aspect-ratio: 1.2 / 1;
    overflow: hidden;
    background: var(--slate-100);
    position: relative;
}

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

.featured-card:hover .featured-card-image img {
    transform: scale(1.06);
}

.featured-card-body {
    padding: 24px;
    display: flex;
    flex-direction: column;
    flex: 1;
}

.featured-card-title {
    font-size: 18px;
    font-weight: 700;
    color: var(--slate-900);
    margin: 0 0 6px 0;
}

.featured-card-desc {
    font-size: 13px;
    color: var(--slate-500);
    line-height: 1.5;
    margin: 0 0 16px 0;
    flex-shrink: 0;
}

.featured-card-specs {
    list-style: none;
    padding: 0;
    margin: 0 0 20px 0;
    display: flex;
    flex-direction: column;
    gap: 8px;
    border-top: 1px dashed var(--slate-200);
    padding-top: 14px;
}

.featured-card-specs li {
    font-size: 12px;
    font-weight: 500;
    color: var(--slate-600);
    display: flex;
    align-items: center;
    gap: 8px;
}

.featured-card-specs li i {
    color: var(--blue-500);
    font-size: 12px;
}

.featured-card-link {
    display: inline-flex;
    align-items: center;
    justify-content: space-between;
    width: 100%;
    padding: 10px 16px;
    background: var(--slate-50);
    border: 1px solid var(--slate-200);
    border-radius: 8px;
    color: var(--slate-900);
    font-size: 12px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    transition: all 0.25s ease;
    margin-top: auto;
}

.featured-card-link i {
    font-size: 11px;
    transition: transform 0.25s ease;
}

.featured-card:hover .featured-card-link {
    background: var(--red-600);
    color: var(--white);
    border-color: var(--red-600);
}

.featured-card:hover .featured-card-link i {
    transform: translateX(4px);
}

/* ===== INDUSTRIES SECTION ===== */
.industries-section {
    padding: 80px 24px 72px;
    background: var(--white);
    border-top: 1px solid var(--slate-100);
}

.industries-container {
    max-width: 1200px;
    margin: 0 auto;
}

.industries-header {
    text-align: center;
    margin-bottom: 48px;
}

.industries-tag {
    display: inline-block;
    font-size: 11px;
    font-weight: 700;
    letter-spacing: 2px;
    text-transform: uppercase;
    color: var(--blue-500);
    margin-bottom: 6px;
}

.industries-title {
    font-size: 34px;
    font-weight: 700;
    color: var(--slate-900);
    letter-spacing: -0.02em;
    line-height: 1.1;
}

.industries-tabs {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 6px;
    margin-bottom: 48px;
    border-bottom: 1px solid var(--slate-200);
    padding-bottom: 2px;
}

.industries-tabs .tab-btn {
    padding: 10px 24px;
    font-size: 13px;
    font-weight: 600;
    color: var(--slate-500);
    border-radius: 8px 8px 0 0;
    transition: all 0.25s ease;
    position: relative;
    cursor: pointer;
    background: transparent;
}

.industries-tabs .tab-btn:hover {
    color: var(--slate-900);
    background: var(--slate-50);
}

.industries-tabs .tab-btn.active {
    color: var(--blue-500);
    background: var(--slate-50);
}

.industries-tabs .tab-btn.active::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 0;
    width: 100%;
    height: 2.5px;
    background: var(--blue-500);
    border-radius: 4px 4px 0 0;
}

.industries-content-wrap {
    position: relative;
    min-height: 340px;
}

.industry-content {
    display: none;
    gap: 48px;
    align-items: center;
    animation: fadeInContent 0.4s ease;
}

.industry-content.active {
    display: flex;
}

@keyframes fadeInContent {
    0% {
        opacity: 0;
        transform: translateY(12px);
    }
    100% {
        opacity: 1;
        transform: translateY(0);
    }
}

.industry-image {
    flex: 1;
    min-width: 0;
    border-radius: 14px;
    overflow: hidden;
    background: var(--slate-100);
    aspect-ratio: 4 / 3;
}

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

.industry-image:hover img {
    transform: scale(1.02);
}

.industry-info {
    flex: 1;
    min-width: 0;
}

.industry-info h3 {
    font-size: 26px;
    font-weight: 700;
    color: var(--slate-900);
    margin-bottom: 12px;
    letter-spacing: -0.02em;
}

.industry-info p {
    font-size: 15px;
    line-height: 1.7;
    color: var(--slate-600);
    margin-bottom: 18px;
}

.industry-products {
    display: flex;
    flex-wrap: wrap;
    gap: 8px 16px;
    margin-bottom: 20px;
}

.industry-products a {
    font-size: 13px;
    font-weight: 500;
    color: var(--blue-500);
    transition: color 0.2s ease;
    position: relative;
}

.industry-products a:hover {
    color: var(--blue-600);
}

.industry-products a::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 0;
    width: 0;
    height: 1.5px;
    background: var(--blue-500);
    transition: width 0.25s ease;
}

.industry-products a:hover::after {
    width: 100%;
}

.industry-cta {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 10px 28px;
    background: var(--red-600);
    color: var(--white);
    font-weight: 600;
    font-size: 13px;
    border-radius: 8px;
    transition: all 0.25s ease;
    box-shadow: 0 4px 16px rgba(163, 0, 0, 0.20);
}

.industry-cta:hover {
    background: var(--red-500);
    transform: translateY(-2px);
    box-shadow: 0 8px 28px rgba(163, 0, 0, 0.30);
}

.industry-cta i {
    font-size: 12px;
    transition: transform 0.2s ease;
}

.industry-cta:hover i {
    transform: translateX(4px);
}

.industries-more {
    margin-top: 56px;
    padding-top: 40px;
    border-top: 1px solid var(--slate-200);
}

.industries-more-label {
    font-size: 12px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1.5px;
    color: var(--slate-400);
    margin-bottom: 16px;
    text-align: center;
}

.industries-more-tags {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 10px 16px;
}

.industries-more-tags span {
    font-size: 13px;
    font-weight: 500;
    color: var(--slate-500);
    padding: 4px 14px;
    border-radius: 100px;
    background: var(--slate-50);
    border: 1px solid var(--slate-200);
    transition: all 0.2s ease;
    cursor: default;
}

.industries-more-tags span:hover {
    color: var(--slate-900);
    border-color: var(--slate-300);
    background: var(--white);
}

/* ===== TESTIMONIALS SECTION ===== */
.testimonials-section {
    padding: 80px 24px 72px;
    background: var(--slate-50);
    border-top: 1px solid var(--slate-200);
}

.testimonials-container {
    max-width: 1200px;
    margin: 0 auto;
}

.testimonials-header {
    text-align: center;
    margin-bottom: 48px;
}

.testimonials-tag {
    display: inline-block;
    font-size: 11px;
    font-weight: 700;
    letter-spacing: 2px;
    text-transform: uppercase;
    color: var(--blue-500);
    margin-bottom: 6px;
}

.testimonials-title {
    font-size: 34px;
    font-weight: 700;
    color: var(--slate-900);
    letter-spacing: -0.02em;
    line-height: 1.1;
}

.testimonials-carousel {
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 20px;
}

.carousel-track {
    display: flex;
    gap: 24px;
    overflow: hidden;
    padding: 20px 0;
    width: 100%;
    justify-content: center;
}

.testimonial-card {
    flex: 0 0 calc(33.333% - 16px);
    background: var(--white);
    padding: 32px 28px;
    border-radius: 14px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.04);
    transition: all 0.4s cubic-bezier(0.22, 1, 0.36, 1);
    text-align: center;
    border: 1px solid var(--slate-200);
    display: flex;
    flex-direction: column;
    align-items: center;
    min-height: 280px;
    justify-content: center;
}

.testimonial-card.center {
    background: var(--white);
    transform: scale(1.05);
    box-shadow: 0 16px 48px rgba(0, 0, 0, 0.08);
    border-color: var(--white);
    z-index: 2;
}

.testimonial-card.side {
    background: var(--slate-100);
    transform: scale(0.92);
    opacity: 0.6;
    border-color: var(--slate-100);
}

.testimonial-card .logo {
    font-size: 12px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 1px;
    color: var(--slate-400);
    margin-bottom: 16px;
    background: var(--slate-100);
    padding: 4px 16px;
    border-radius: 100px;
}

.testimonial-card.center .logo {
    background: var(--blue-50);
    color: var(--blue-500);
}

.testimonial-card .text {
    font-size: 15px;
    line-height: 1.7;
    color: var(--slate-600);
    margin-bottom: 20px;
    font-style: italic;
    flex: 1;
    display: flex;
    align-items: center;
}

.testimonial-card .author {
    font-size: 14px;
    font-weight: 600;
    color: var(--slate-900);
}

.testimonial-card .author-title {
    font-size: 12px;
    color: var(--slate-500);
    font-weight: 400;
}

.carousel-btn {
    width: 44px;
    height: 44px;
    border-radius: 50%;
    background: var(--white);
    border: 1px solid var(--slate-200);
    color: var(--slate-600);
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.25s ease;
    cursor: pointer;
    flex-shrink: 0;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.04);
}

.carousel-btn:hover {
    background: var(--blue-500);
    color: var(--white);
    border-color: var(--blue-500);
    box-shadow: 0 4px 16px rgba(0, 104, 204, 0.20);
}

/* ===== SERVICES SECTION ===== */
.services-section {
    padding: 80px 24px 80px;
    background: var(--slate-50);
    border-top: 1px solid var(--slate-200);
}

.services-container {
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    align-items: center;
    gap: 0;
}

.services-content {
    flex: 0 0 55%;
    background: var(--slate-900);
    color: var(--white);
    padding: 60px 60px 60px 80px;
    border-radius: 0 16px 16px 0;
    z-index: 2;
    position: relative;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.25);
}

.services-title {
    font-size: 34px;
    font-weight: 700;
    color: var(--white);
    letter-spacing: -0.02em;
    line-height: 1.1;
    margin-bottom: 8px;
}

.services-intro {
    font-size: 15px;
    color: rgba(255, 255, 255, 0.7);
    margin-bottom: 20px;
    font-weight: 400;
}

.services-list {
    list-style: none;
    padding: 0;
    margin: 0 0 24px 0;
}

.services-list li {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 8px 0;
    border-bottom: 1px solid rgba(255, 255, 255, 0.06);
    gap: 12px;
}

.services-list li:last-child {
    border-bottom: none;
}

.services-list li a {
    color: rgba(255, 255, 255, 0.85);
    font-size: 15px;
    font-weight: 400;
    transition: color 0.2s ease;
    flex: 1;
}

.services-list li a:hover {
    color: var(--blue-500);
}

.arrow-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 22px;
    height: 22px;
    background: var(--red-500);
    border-radius: 50%;
    font-size: 10px;
    color: var(--white);
    flex-shrink: 0;
    transition: transform 0.25s cubic-bezier(0.22, 1, 0.36, 1);
}

.services-list li:hover .arrow-icon {
    transform: translateX(4px);
}

.services-cert {
    font-size: 14px;
    line-height: 1.7;
    color: rgba(255, 255, 255, 0.65);
    margin: 20px 0 28px 0;
    max-width: 90%;
}

.btn-service {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 14px 40px;
    background: var(--red-600);
    color: var(--white);
    font-weight: 600;
    font-size: 14px;
    border-radius: 8px;
    transition: all 0.3s cubic-bezier(0.22, 1, 0.36, 1);
    box-shadow: 0 4px 20px rgba(163, 0, 0, 0.25);
    letter-spacing: 0.5px;
}

.btn-service:hover {
    background: var(--red-500);
    transform: translateY(-2px);
    box-shadow: 0 8px 32px rgba(163, 0, 0, 0.35);
}

.btn-service i {
    font-size: 13px;
    transition: transform 0.2s ease;
}

.btn-service:hover i {
    transform: translateX(4px);
}

.services-image {
    flex: 1;
    margin-left: -40px;
    border-radius: 16px;
    overflow: hidden;
    min-height: 420px;
    background: var(--slate-200);
}

.services-image img {
    width: 100%;
    height: 100%;
    min-height: 420px;
    object-fit: cover;
    display: block;
}

/* ===== 首页专属响应式 ===== */
@media (max-width: 1024px) {
    .banner-slide {
        padding: 0 32px;
    }
    .banner-text h1 {
        font-size: 34px;
    }
    .banner-image img {
        max-width: 400px;
    }
    .featured-products-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 20px;
    }
    .featured-products-title {
        font-size: 28px;
    }
    .about-container {
        gap: 40px;
    }
    .about-title {
        font-size: 28px;
    }
    .industry-content {
        gap: 32px;
    }
    .industry-info h3 {
        font-size: 22px;
    }
    .testimonial-card {
        flex: 0 0 calc(50% - 12px);
    }
    .services-content {
        flex: 0 0 60%;
        padding: 48px 40px 48px 48px;
    }
    .services-title {
        font-size: 28px;
    }
    .services-image {
        min-height: 340px;
    }
    .services-image img {
        min-height: 340px;
    }
}

@media (max-width: 768px) {
    /* 【优化 1】：增加移动端 Banner 容器总高度（调至 560px） */
    .banner-section {
        height: 560px;
    }
    
    /* 【优化 2】：保持 position: absolute 绝对定位重叠，确保正常切换 */
    .banner-slide {
        padding: 24px 20px 48px;
        position: absolute;
        top: 0;
        left: 0;
        width: 100%;
        height: 100%;
    }
    
    .banner-slide-inner {
        flex-direction: column;
        justify-content: center;
        gap: 16px;
        height: 100%;
        padding: 0;
    }
    
    .banner-text {
        max-width: 100%;
        text-align: left;
        gap: 4px;
    }
    .banner-text h1 {
        font-size: 24px;
        line-height: 1.2;
    }
    .banner-text .subtitle {
        font-size: 14px;
    }
    .banner-text .description {
        font-size: 13px;
        max-width: 100%;
        display: -webkit-box;
        -webkit-line-clamp: 3;
        -webkit-box-orient: vertical;
        overflow: hidden;
    }
    .banner-text .btn-banner {
        padding: 8px 20px;
        font-size: 12px;
        margin-top: 6px;
    }
    
    /* 【优化 3】：修复图片挤压变形，改为自适应等比显示 */
    .banner-image {
        max-width: 100%;
        width: 100%;
        height: auto;
        order: -1;
        transform: translateX(0);
        opacity: 1;
        display: flex;
        justify-content: center;
    }
    .banner-image.animate {
        animation: none;
        opacity: 1;
        transform: translateX(0);
    }
    .banner-image img {
        width: auto;
        max-width: 100%;
        max-height: 220px;   /* 限制最大高度，防止撑满视口 */
        height: auto;        /* 关键：高度根据原图比例自适应，彻底解决拉伸挤压 */
        object-fit: contain; /* 保证整张产品图完整无缝显示 */
        border-radius: 12px;
        aspect-ratio: auto;
    }
    .banner-controls {
        padding: 0 10px;
    }
    .banner-controls button {
        width: 36px;
        height: 36px;
        font-size: 13px;
    }
    .banner-progress {
        height: 3px;
    }
    .banner-dots {
        bottom: 12px;
        gap: 8px;
    }
    .banner-dots .dot {
        width: 6px;
        height: 6px;
    }
    .banner-dots .dot.active {
        width: 18px;
    }

    .featured-products-section {
        padding: 56px 16px 60px;
    }
    .featured-products-header {
        flex-direction: column;
        align-items: flex-start;
        gap: 12px;
        margin-bottom: 32px;
    }
    .featured-products-title {
        font-size: 24px;
    }
    .featured-products-desc {
        max-width: 100%;
    }
    .featured-products-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 16px;
    }

    .about-section {
        padding: 52px 16px 60px;
    }
    .about-container {
        flex-direction: column;
        gap: 32px;
    }
    .about-content {
        width: 100%;
        order: 1;
    }
    .about-video {
        width: 100%;
        order: 0;
    }
    .about-title {
        font-size: 26px;
    }
    .about-text {
        font-size: 14px;
        max-width: 100%;
    }
    .about-cta {
        padding: 10px 24px;
        font-size: 13px;
    }

    .banner-cta {
        padding: 36px 20px;
    }
    .banner-cta-inner {
        flex-direction: column;
        align-items: flex-start;
        gap: 24px;
    }
    .banner-cta-text {
        flex: 1 1 auto;
        width: 100%;
    }
    .banner-cta-title {
        font-size: 20px;
    }
    .banner-cta-desc {
        font-size: 14px;
        max-width: 100%;
    }
    .banner-cta-stats {
        width: 100%;
        justify-content: flex-start;
        gap: 16px 28px;
    }
    .stat-item:not(:first-child) {
        padding-left: 20px;
    }
    .stat-number {
        font-size: 24px;
    }
    .stat-label {
        font-size: 9px;
        letter-spacing: 1px;
    }

    .industries-section {
        padding: 56px 16px 48px;
    }
    .industries-title {
        font-size: 26px;
    }
    .industries-tabs {
        gap: 4px;
        margin-bottom: 32px;
        overflow-x: auto;
        flex-wrap: nowrap;
        justify-content: flex-start;
        padding-bottom: 4px;
        -webkit-overflow-scrolling: touch;
    }
    .industries-tabs .tab-btn {
        padding: 8px 16px;
        font-size: 12px;
        white-space: nowrap;
        flex-shrink: 0;
    }
    .industry-content {
        flex-direction: column;
        gap: 24px;
    }
    .industry-content.active {
        flex-direction: column;
    }
    .industry-image {
        width: 100%;
        aspect-ratio: 16 / 9;
    }
    .industry-info {
        width: 100%;
    }
    .industry-info h3 {
        font-size: 22px;
    }
    .industry-info p {
        font-size: 14px;
    }
    .industry-products {
        gap: 6px 12px;
    }
    .industry-products a {
        font-size: 12px;
    }
    .industry-cta {
        padding: 8px 20px;
        font-size: 12px;
    }
    .industries-more {
        margin-top: 40px;
        padding-top: 28px;
    }
    .industries-more-tags {
        gap: 8px 12px;
    }
    .industries-more-tags span {
        font-size: 12px;
        padding: 3px 12px;
    }

    .testimonials-section {
        padding: 56px 16px 48px;
    }
    .testimonials-title {
        font-size: 26px;
    }
    .testimonials-carousel {
        gap: 10px;
    }
    .testimonial-card {
        flex: 0 0 calc(100% - 0px);
        min-height: 240px;
        padding: 24px 20px;
    }
    .testimonial-card.side {
        display: none;
    }
    .testimonial-card.center {
        transform: scale(1);
    }
    .carousel-btn {
        width: 36px;
        height: 36px;
        font-size: 14px;
    }

    .services-section {
        padding: 48px 16px 56px;
    }
    .services-container {
        flex-direction: column;
        align-items: stretch;
    }
    .services-content {
        flex: 1 1 auto;
        padding: 36px 24px 40px;
        border-radius: 16px 16px 0 0;
        width: 100%;
        box-shadow: 0 8px 30px rgba(0, 0, 0, 0.15);
    }
    .services-title {
        font-size: 26px;
    }
    .services-intro {
        font-size: 14px;
    }
    .services-list li a {
        font-size: 14px;
    }
    .services-cert {
        font-size: 13px;
        max-width: 100%;
    }
    .btn-service {
        width: 100%;
        justify-content: center;
        padding: 12px 24px;
        font-size: 13px;
    }
    .services-image {
        margin-left: 0;
        width: 100%;
        min-height: 220px;
        border-radius: 0 0 16px 16px;
        margin-top: -16px;
    }
    .services-image img {
        min-height: 220px;
    }
}

@media (max-width: 480px) {
    /* 【优化 4】：针对窄屏手机端高度与尺寸调整 */
    .banner-section {
        height: 520px;
    }
    .banner-slide {
        padding: 20px 14px 40px;
    }
    .banner-text h1 {
        font-size: 20px;
    }
    .banner-text .subtitle {
        font-size: 12px;
    }
    .banner-text .description {
        font-size: 12px;
        -webkit-line-clamp: 2;
    }
    .banner-text .btn-banner {
        padding: 7px 18px;
        font-size: 11px;
    }
    .banner-image img {
        max-height: 180px;
        height: auto;
    }
    .banner-controls button {
        width: 30px;
        height: 30px;
        font-size: 11px;
    }

    .featured-products-section {
        padding: 40px 12px 48px;
    }
    .featured-products-grid {
        grid-template-columns: 1fr;
        gap: 16px;
    }
    .featured-card-body {
        padding: 18px 16px;
    }

    .about-section {
        padding: 36px 12px 44px;
    }
    .about-container {
        gap: 24px;
    }
    .about-title {
        font-size: 22px;
    }
    .about-text {
        font-size: 13px;
    }
    .about-cta {
        padding: 8px 18px;
        font-size: 12px;
    }
    .about-cta i {
        font-size: 11px;
    }

    .banner-cta {
        padding: 28px 16px;
    }
    .banner-cta-title {
        font-size: 18px;
    }
    .banner-cta-desc {
        font-size: 13px;
    }
    .banner-cta-stats {
        gap: 12px 20px;
    }
    .stat-item:not(:first-child) {
        padding-left: 14px;
    }
    .stat-number {
        font-size: 20px;
    }
    .stat-label {
        font-size: 8px;
        letter-spacing: 0.8px;
    }

    .industries-section {
        padding: 40px 12px 36px;
    }
    .industries-title {
        font-size: 22px;
    }
    .industries-tabs .tab-btn {
        padding: 6px 12px;
        font-size: 11px;
    }
    .industry-info h3 {
        font-size: 19px;
    }
    .industry-info p {
        font-size: 13px;
    }
    .industry-cta {
        padding: 7px 16px;
        font-size: 11px;
    }
    .industries-more-tags span {
        font-size: 11px;
        padding: 2px 10px;
    }

    .testimonials-section {
        padding: 40px 12px 36px;
    }
    .testimonials-title {
        font-size: 22px;
    }
    .testimonial-card {
        min-height: 200px;
        padding: 20px 16px;
    }
    .testimonial-card .text {
        font-size: 14px;
    }
    .testimonial-card .author {
        font-size: 13px;
    }

    .services-section {
        padding: 32px 12px 40px;
    }
    .services-content {
        padding: 28px 16px 32px;
    }
    .services-title {
        font-size: 22px;
    }
    .services-list li a {
        font-size: 13px;
    }
    .services-list li {
        padding: 6px 0;
    }
    .arrow-icon {
        width: 18px;
        height: 18px;
        font-size: 8px;
    }
    .services-cert {
        font-size: 12px;
    }
    .btn-service {
        font-size: 12px;
        padding: 10px 16px;
    }
    .services-image {
        min-height: 160px;
    }
    .services-image img {
        min-height: 160px;
    }
}