:root {
    --primary-blue: #1976d2;
    --primary-green: #27ae60;
    --primary-gradient: linear-gradient(90deg, #1976d2 60%, #27ae60 100%);
    --secondary-gray: #f5f7fa;
    --secondary-white: #fff;
    --accent-yellow: #ffe066;
    --accent-orange: #ff9800;
    --header-bg: #fff;
    --footer-bg: #163061;
    --header-text: #222;
    --footer-text: #fff;
    --menu-hover: #e3f2fd;
    --button-bg: var(--accent-orange);
    --button-hover: #ffa726;
    --button-text: #fff;
}

header {
    background: var(--header-bg);
    color: var(--header-text);
    padding: 0;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    box-shadow: 0 2px 8px rgba(0,0,0,0.05);
    border-bottom: 1.5px solid #eaeaea;
}

.header-flex .logo-text, .header-flex nav a, .header-flex .lang-btn {
    color: var(--header-text) !important;
    text-shadow: none;
}

.header-flex nav a {
    font-weight: 500;
    transition: color 0.22s cubic-bezier(.4,0,.2,1), background 0.22s cubic-bezier(.4,0,.2,1), box-shadow 0.22s cubic-bezier(.4,0,.2,1);
    padding: 0 1.2em;
    height: 60px;
    line-height: 60px;
    border-radius: 7px;
    margin: 0 2px;
    background: none;
    box-shadow: none;
    position: relative;
    z-index: 1;
    color: var(--header-text);
    overflow: hidden;
}

.logo-en, .logo-sub {
    color: #666;
}

.menu-area .lang-btn {
    background: #f8f9fa;
    color: #222;
    border: 1px solid #e0e0e0;
}

.logo {
    min-width: 180px;
    display: flex;
    align-items: center;
    height: 64px;
    gap: 10px;
    padding: 0 0;
}

.logo-img {
    height: 52px;
    max-height: 100%;
    width: auto;
    display: block;
    margin-right: 0;
}

.logo-text {
    display: flex;
    flex-direction: column;
    justify-content: center;
    font-size: 1.08em;
    font-weight: 600;
    color: var(--header-text);
    letter-spacing: 1.2px;
    line-height: 1.18;
    white-space: nowrap;
    gap: 2px;
    position: relative;
}

.logo-cn {
    font-size: 1.22em;
    font-weight: 800;
    line-height: 1.13;
    display: inline-block;
    color: var(--header-text);
    margin-bottom: 1px;
}

.logo-en-wrap {
    display: flex;
    align-items: center;
    gap: 6px;
    margin-top: 0px;
}

.logo-en {
    font-size: 0.88em;
    font-weight: 500;
    color: #666;
    letter-spacing: 1.2px;
    line-height: 1.05;
}

.logo-sub {
    font-size: 0.92em;
    font-weight: 500;
    color: #666;
    letter-spacing: 0.5px;
}

.menu-area {
    display: flex;
    align-items: center;
    gap: 2em;
    margin-right: 32px;
}

nav ul {
    list-style: none;
    margin: 0;
    padding: 0;
    display: flex;
    gap: 2em;
}

nav a {
    color: #222;
    text-decoration: none;
    font-size: 1.1em;
    transition: color 0.2s;
    padding: 0 0.2em;
    line-height: 60px;
    display: inline-block;
}

nav a:hover {
    color: var(--primary-green);
}

.lang-switch {
    margin-left: 2em;
    display: flex;
    align-items: center;
    height: 60px;
}

.lang-btn {
    font-size: 1em;
    padding: 6px 18px;
    border-radius: 5px;
    cursor: pointer;
    border: none;
    outline: none;
    transition: background 0.18s, color 0.18s;
}

.button, .btn-main {
    background: var(--button-bg);
    color: var(--button-text);
    border: none;
    border-radius: 6px;
    padding: 10px 28px;
    font-size: 1.05em;
    font-weight: 600;
    cursor: pointer;
    transition: background 0.15s, color 0.15s, box-shadow 0.18s;
    box-shadow: 0 2px 8px rgba(255,152,0,0.07);
}

.button:hover, .btn-main:hover {
    background: var(--button-hover);
    color: #fff;
    box-shadow: 0 4px 14px rgba(255,152,0,0.18);
}

.banner {
    background: var(--primary-gradient);
    color: #fff;
    padding: 7em 0 3em 0;
    text-align: center;
}

.about {
    background: #fff;
    padding: 60px 0;
    text-align: center;
    position: relative;
}

.about::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent, rgba(0,0,0,0.1), transparent);
}

.about-desc {
    font-size: 1.13em;
    color: #444;
    margin: 1.2em 0 2.1em 0;
    text-align: center;
    line-height: 1.8;
    letter-spacing: 0.1em;
}

.about-desc-wide {
    max-width: 900px;
    margin: 1.7em auto 0 auto;
    font-size: 1.13em;
    color: #444;
    text-align: center;
    line-height: 1.8;
    letter-spacing: 0.1em;
    background: none;
    border-radius: 0;
    box-shadow: none;
    padding: 0;
    border: none;
}

.about-features-line {
    position: relative;
    display: flex;
    justify-content: center;
    align-items: flex-start;
    gap: 0;
    margin: 2.2em auto 2.1em auto;
    max-width: 900px;
    min-width: 300px;
}

.about-feature-node {
    flex: 1 1 0;
    display: flex;
    flex-direction: column;
    align-items: center;
    position: relative;
    z-index: 2;
}

.about-feature-icon {
    font-size: 2.2em;
    color: #1976d2;
    background: #fff;
    border-radius: 50%;
    padding: 0.22em 0.28em;
    margin-bottom: 0.2em;
    border: 2.5px solid #1976d2;
    box-shadow: 0 2px 8px rgba(25,118,210,0.09);
}

.about-feature-title {
    font-size: 1.08em;
    color: #333;
    font-weight: 600;
    margin-top: 0.25em;
    letter-spacing: 0.08em;
    text-align: center;
}

.about-feature-line {
    position: absolute;
    left: 8%;
    right: 8%;
    top: 2.1em;
    height: 0;
    border-bottom: 3px solid #1976d2;
    z-index: 1;
}

.about-stats {
    display: flex;
    justify-content: center;
    align-items: stretch;
    gap: 32px;
    margin: 2.3em 0 1.5em 0;
}

.about-stat-item {
    flex: 1 1 0;
    min-width: 180px;
    max-width: 240px;
    background: #fff;
    border-radius: 12px;
    box-shadow: 0 2px 14px rgba(25,118,210,0.06);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 2.2em 0 2em 0;
    transition: box-shadow 0.2s, transform 0.2s;
    border: 1.5px solid #f1f5fa;
}

.about-stat-item:hover {
    box-shadow: 0 6px 28px rgba(25,118,210,0.13);
    transform: translateY(-6px) scale(1.035);
    border-color: #1976d2;
}

.about-stat-num {
    font-size: 2.5em;
    font-weight: 800;
    color: #1976d2;
    margin-bottom: 0.3em;
    letter-spacing: 1px;
    font-family: 'Segoe UI', 'Arial', sans-serif;
}

.about-stat-desc {
    font-size: 1.09em;
    color: #333;
    margin-top: 0.2em;
    text-align: center;
    letter-spacing: 0.2px;
    font-family: 'Segoe UI', 'PingFang SC', Arial, sans-serif;
}

.advantages {
    display: flex;
    justify-content: center;
    gap: 2em;
    margin-top: 1.5em;
    padding: 0;
    list-style: none;
}

.advantages li {
    background: var(--primary-green);
    color: #fff;
    padding: 0.8em 2em;
    border-radius: 2em;
    font-weight: bold;
    font-size: 1em;
}

.products-preview {
    background: #f8f9fa;
    padding: 60px 0;
    position: relative;
}

.product-cards {
    display: flex;
    flex-direction: column;
    gap: 22px;
    align-items: center;
}

.product-row {
    display: flex;
    flex-direction: row;
    gap: 22px;
    justify-content: center;
    width: 100%;
    margin-bottom: 0;
}

.product-row:last-child {
    margin-bottom: 0;
}

.product-item {
    background: #fff;
    border-radius: 0;
    overflow: hidden;
    box-shadow: 0 2px 8px rgba(0,0,0,0.05);
    transition: transform 0.22s cubic-bezier(.4,0,.2,1), box-shadow 0.22s cubic-bezier(.4,0,.2,1), border-color 0.38s cubic-bezier(.4,0,.2,1);
    display: flex;
    flex-direction: column;
    align-items: center;
    padding: 15px;
    position: relative;
    cursor: pointer;
    will-change: transform, box-shadow, border-color;
    backface-visibility: hidden;
    transform: translateZ(0);
    border: 1.5px solid #e5eaf1;
}

.product-item:hover {
    transform: translateY(-8px) scale(1.04);
    box-shadow: 0 8px 32px 0 rgba(25,118,210,0.14);
    border-color: #1976d2;
    z-index: 2;
}

.product-item img {
    width: 100%;
    height: 200px;
    object-fit: cover;
    border-radius: 0;
    margin-bottom: 10px;
    transition: transform 0.2s ease-out;
    will-change: transform;
    backface-visibility: hidden;
    transform: translateZ(0);
}

.product-item:hover img {
    transform: scale(1.05);
}

.product-title {
    font-size: 1.1em;
    color: var(--primary-blue);
    text-align: center;
    margin-top: 10px;
    font-weight: 500;
}

.product-more-link {
    display: inline-block;
    text-align: center;
    margin-top: 40px;
    padding: 0;
    background: none;
    color: var(--primary-blue);
    text-decoration: none;
    font-weight: 600;
    font-size: 1.1em;
    letter-spacing: 1px;
    position: relative;
    transition: all 0.3s ease;
    grid-column: 1 / -1;
    justify-self: center;
}

.product-more-link::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 0;
    width: 100%;
    height: 2px;
    background: var(--primary-gradient);
    transform: scaleX(0);
    transform-origin: right;
    transition: transform 0.3s ease;
}

.product-more-link:hover {
    color: var(--primary-green);
    transform: translateX(5px);
}

.product-more-link:hover::after {
    transform: scaleX(1);
    transform-origin: left;
}

@media (max-width: 900px) {
    .product-more-link {
        font-size: 1em;
        margin-top: 30px;
    }
}

@media (max-width: 1200px) {
    .products-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

@media (max-width: 900px) {
    .products-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 600px) {
    .products-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 900px) {
    .product-cards {
        gap: 14px;
    }
    .product-row {
        gap: 14px;
        flex-wrap: wrap;
    }
}

@media (max-width: 600px) {
    .product-row {
        flex-direction: column;
        gap: 10px;
        align-items: center;
    }
}

.partners {
    background: #f8f9fa;
    padding: 60px 0;
    text-align: center;
    position: relative;
}

.partners::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent, rgba(0,0,0,0.1), transparent);
}

.partners h2 {
    font-size: 2em;
    color: var(--primary-blue);
    margin-bottom: 40px;
}

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

.partner-item {
    background: #fff;
    border-radius: 8px;
    overflow: hidden;
    box-shadow: 0 2px 8px rgba(0,0,0,0.05);
    transition: transform 0.2s ease-out;
    aspect-ratio: 16/9;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 20px;
    will-change: transform;
    backface-visibility: hidden;
    transform: translateZ(0);
}

.partner-item:hover {
    transform: translateY(-5px);
    box-shadow: 0 4px 12px rgba(0,0,0,0.08);
}

.partner-item img {
    max-width: 100%;
    max-height: 100%;
    object-fit: contain;
    filter: grayscale(100%);
    transition: filter 0.2s ease-out;
    will-change: filter;
    backface-visibility: hidden;
    transform: translateZ(0);
}

.partner-item:hover img {
    filter: grayscale(0%);
}

@media (max-width: 1200px) {
    .partner-logos {
        grid-template-columns: repeat(3, 1fr);
    }
}

@media (max-width: 900px) {
    .partner-logos {
        grid-template-columns: repeat(2, 1fr);
        gap: 20px;
    }
}

@media (max-width: 600px) {
    .partner-logos {
        grid-template-columns: 1fr;
    }
}

.video {
    background: var(--secondary-gray);
    padding: 2em 0 3em 0;
    text-align: center;
}

.video-wrapper {
    display: flex;
    justify-content: center;
    margin-top: 1em;
}

.video-wrapper video {
    width: 400px;
    max-width: 90vw;
    border-radius: 8px;
    box-shadow: 0 2px 12px rgba(0,0,0,0.08);
}

footer {
    background: var(--footer-bg);
    color: var(--footer-text);
    padding: 24px 0 12px 0;
    text-align: center;
    font-size: 1em;
    border-top: 1.5px solid #145ea8;
    z-index: 999;
    box-shadow: 0 -2px 8px rgba(0,0,0,0.07);
    position: fixed;
    left: 0;
    bottom: 0;
    width: 100%;
    transition: transform 0.35s cubic-bezier(.7,.3,.3,1), opacity 0.25s;
}

footer.footer-hide {
    transform: translateY(100%);
    opacity: 0;
    pointer-events: none;
}

footer a, footer span, footer p {
    color: var(--footer-text);
    margin: 0;
    line-height: 1.6;
}

.banner-carousel {
    width: 100vw;
    min-height: 700px;
    background: var(--secondary-gray);
    position: relative;
    margin-top: 0;
    overflow: hidden;
    display: flex;
    align-items: center;
    justify-content: center;
}

.banner-carousel-inner {
    position: relative;
    width: 100vw;
    max-width: 1920px;
    height: 700px;
    margin: 0 auto;
    display: flex;
    align-items: center;
    justify-content: center;
}

.carousel-slide {
    position: absolute;
    left: 0; top: 0;
    width: 100vw;
    height: 700px;
    opacity: 0;
    transition: opacity 0.5s;
    z-index: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    background: #000;
}

.carousel-slide.active {
    opacity: 1;
    z-index: 2;
}

.carousel-slide img, .banner-video-embed {
    width: 100vw;
    max-width: 1920px;
    height: 700px;
    object-fit: cover;
    border-radius: 0;
    background: #000;
}

.banner-video-embed {
    background: #000;
    display: block;
}

.carousel-arrow {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    width: 48px;
    height: 48px;
    background: rgba(25,118,210,0.18);
    color: #fff;
    border: none;
    font-size: 2em;
    cursor: pointer;
    z-index: 10;
    padding: 0;
    border-radius: 50%;
    transition: background 0.2s, box-shadow 0.2s;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 2px 8px rgba(0,0,0,0.08);
}

.carousel-arrow.left { left: 36px; }
.carousel-arrow.right { right: 36px; }
.carousel-arrow:hover {
    background: var(--primary-green);
    color: #fff;
    box-shadow: 0 4px 16px rgba(0,0,0,0.15);
}

.carousel-indicators {
    position: absolute;
    left: 50%;
    bottom: 18px;
    transform: translateX(-50%);
    display: flex;
    gap: 10px;
    z-index: 20;
}

.indicator {
    display: block;
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background: #fff;
    opacity: 0.5;
    cursor: pointer;
    transition: opacity 0.2s, background 0.2s;
    border: 2px solid var(--primary-blue);
}

.indicator.active {
    opacity: 1;
    background: var(--primary-blue);
}

.banner-video {
    position: absolute;
    right: 60px;
    bottom: 48px;
    width: 420px;
    height: 236px;
    z-index: 30;
    box-shadow: 0 4px 24px rgba(0,0,0,0.18);
    border-radius: 12px;
    overflow: hidden;
    background: #000;
}

.banner-video video {
    width: 100%;
    height: 100%;
    object-fit: cover;
    border-radius: 12px;
}

.about-features {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 32px;
    margin: 2.3em auto 2em auto;
    max-width: 900px;
    width: 100%;
}

@media (max-width: 900px) {
    .about-features {
        flex-direction: column;
        gap: 16px;
        max-width: 98vw;
        align-items: center;
    }
    .about-feature-item {
        min-width: 0;
        max-width: none;
        padding: 0.9em 0.7em 0.6em 0.7em;
        margin-bottom: 1.2em;
    }
    .about-feature-icon {
        font-size: 1.5em;
    }
    .about-feature-title {
        font-size: 0.97em;
    }
}

.about-feature-item {
    flex: 1 1 0;
    min-width: 150px;
    max-width: 220px;
    background: #fff;
    border-radius: 0;
    box-shadow: 0 2px 8px rgba(0,0,0,0.05);
    border: 2px solid #e3ebf7;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 2.2em 1.1em 2em 1.1em;
    transition: transform 0.2s ease-out, box-shadow 0.2s ease-out, border-color 0.2s ease-out;
    position: relative;
    will-change: transform;
    backface-visibility: hidden;
    transform: translateZ(0);
}

.about-feature-item:hover {
    box-shadow: 0 4px 12px rgba(0,0,0,0.08);
    border-color: var(--primary-blue);
    transform: translateY(-5px);
}

.about-feature-icon {
    font-size: 2.4em;
    color: #1976d2;
    margin-bottom: 0;
    background: none;
    border-radius: 0;
    padding: 0;
    box-shadow: none;
    border: none;
}

.about-feature-title {
    display: block;
    font-size: 1.08em;
    color: #333;
    font-weight: 600;
    margin-top: 0.38em;
    letter-spacing: 0.08em;
    text-align: center;
    transition: color 0.25s, transform 0.35s cubic-bezier(.19,1,.22,1), text-shadow 0.3s;
}

.about-feature-item:hover .about-feature-title {
    color: #1976d2;
    transform: scale(1.12) translateY(-4px) rotate(-2deg);
    text-shadow: 0 4px 16px rgba(25,118,210,0.15), 0 1px 0 #fff;
}

.intro-row {
  display: flex;
  align-items: flex-start;
  gap: 36px;
  margin: 48px auto 56px auto;
  max-width: 900px;
}

.intro-logo {
  width: 120px;
  height: auto;
  margin-top: 2px; /* 精准对齐标题 */
  display: block;
  border-radius: 12px;
  box-shadow: 0 2px 12px #eaf3fc22;
  background: #fff;
  object-fit: contain;
}

.intro-content {
  flex: 1 1 0;
  min-width: 220px;
  max-width: 700px;
  display: flex;
  flex-direction: column;
  justify-content: flex-start;
}

.intro-content h2 {
  font-size: 1.7em;
  color: #1976d2;
  margin: 0 0 0.8em 0;
  font-weight: 700;
}

.intro-content p {
  font-size: 1.08em;
  color: #333;
  line-height: 2.1;
  letter-spacing: 0.04em;
  margin: 0;
  text-align: left;
}

@media (max-width: 900px) {
  .intro-row {
    flex-direction: column;
    gap: 18px;
    margin: 28px 0 32px 0;
    max-width: 99vw;
    align-items: stretch;
  }
  .intro-logo {
    width: 90px;
    margin-top: 0;
  }
  .intro-content {
    min-width: 0;
    max-width: none;
  }
  .intro-content h2 {
    font-size: 1.15em;
  }
  .intro-content p {
    font-size: 0.98em;
  }
}

.company-intro-flex {
    display: flex;
    align-items: flex-end;
    gap: 44px;
    max-width: 900px;
    margin: 0 auto;
    padding: 2.2em 0 2.2em 0;
    flex-wrap: wrap;
}

.company-intro-logo {
    flex: 0 0 232px;
    display: flex;
    align-items: flex-start;
    justify-content: center;
    margin-top: 95px;
    order: 2;
}

.company-intro-logo img {
    width: 232px;
    height: 207px;
    min-width: 232px;
    min-height: 207px;
    max-width: 232px;
    max-height: 207px;
    border-radius: 16px;
    box-shadow: 0 2px 12px rgba(0,0,0,0.05);
    background: #fff;
    padding: 0 0.6em 0.6em 0.6em;
    object-fit: contain;
    display: block;
}

.company-intro-desc {
    flex: 1 1 0;
    min-width: 220px;
    max-width: 700px;
    display: flex;
    flex-direction: column;
    justify-content: flex-start;
    order: 1;
}

.company-intro-desc h2 {
    font-size: 1.7em;
    color: var(--primary-blue);
    margin-bottom: 0.8em;
    font-weight: 700;
}

.company-intro-desc p {
    font-size: 1.08em;
    color: #333;
    line-height: 2.1;
    letter-spacing: 0.04em;
    margin: 0;
    text-align: left;
}

@media (max-width: 900px) {
    .company-intro-flex {
        flex-direction: column;
        gap: 18px;
        padding: 1.2em 0.3em 1.2em 0.3em;
        max-width: 99vw;
        align-items: stretch;
    }
    .company-intro-logo {
        flex: 0 0 120px;
        align-items: flex-start;
        margin-top: 30px;
        order: 1;
    }
    .company-intro-logo img {
        width: 120px;
        height: 107px;
        min-width: 0;
        min-height: 0;
        max-width: 120px;
        max-height: 107px;
        padding: 0 0.3em 0.3em 0.3em;
    }
    .company-intro-desc {
        min-width: 0;
        max-width: none;
        order: 2;
    }
    .company-intro-desc h2 {
        font-size: 1.15em;
    }
    .company-intro-desc p {
        font-size: 0.98em;
    }
}

@media (max-width: 900px) {
    .header-flex {
        flex-direction: column;
        gap: 1em;
        height: auto;
        padding-left: 0.5em;
        padding-right: 0.5em;
    }
    .menu-area {
        flex-direction: column;
        align-items: flex-end;
        gap: 0.5em;
    }
    nav ul {
        flex-direction: column;
        gap: 1em;
    }
    .lang-switch {
        margin-top: 0.5em;
        margin-left: 0;
        width: 100%;
        justify-content: flex-end;
        height: auto;
    }
    .lang-btn {
        width: 100%;
        min-width: 120px;
        height: 42px;
        line-height: 42px;
        font-size: 1em;
    }
    .product-cards {
        flex-direction: column;
        align-items: center;
    }
    .advantages {
        flex-direction: column;
        gap: 1em;
    }
    .partner-logos {
        flex-direction: column;
        gap: 1em;
    }
    .container {
        padding-left: 0.5em;
        padding-right: 0.5em;
    }
    .banner-carousel-inner, .carousel-slide img, .carousel-slide, .banner-video-embed {
        height: 220px;
    }
    .banner-video {
        width: 180px;
        height: 100px;
        right: 12px;
        bottom: 12px;
    }
    .about-stats {
        flex-direction: column;
        gap: 18px;
        margin: 1.2em 0 1.2em 0;
    }
    .about-stat-item {
        min-width: 0;
        max-width: none;
        padding: 1.4em 0 1.2em 0;
    }
    .about-stat-num {
        font-size: 1.6em;
    }
    .about-stat-desc {
        font-size: 0.98em;
    }
    .about-features {
        flex-direction: column;
        gap: 16px;
        max-width: 98vw;
    }
    .about-feature-item {
        min-width: 0;
        max-width: none;
        padding: 0.9em 0.7em 0.6em 0.7em;
        margin-bottom: 1.2em;
    }
    .about-feature-icon {
        font-size: 1.5em;
    }
    .about-feature-title {
        font-size: 0.97em;
    }
    .about-desc-wide {
        max-width: 98vw;
        padding: 0;
        font-size: 1em;
    }
    .about-features {
        flex-direction: column;
        gap: 16px;
        max-width: 98vw;
    }
    .about-feature-item {
        min-width: 0;
        padding: 0.9em 0.7em 0.6em 0.7em;
        margin-bottom: 1.2em;
    }
    .about-feature-icon {
        font-size: 1.5em;
    }
    .about-feature-title {
        font-size: 0.97em;
    }
    .about-features-curve-wrap {
        max-width: 98vw;
        min-height: 0;
        margin: 1.1em auto 1.1em auto;
    }
    .about-features-curve {
        flex-direction: column;
        align-items: center;
        position: static;
        width: 100%;
        top: 0;
    }
    .about-feature-card {
        min-width: 0;
        max-width: none;
        padding: 0.9em 0.7em 0.6em 0.7em;
        margin-bottom: 1.2em;
    }
    .about-feature-icon {
        font-size: 1.5em;
    }
    .about-feature-title {
        font-size: 0.97em;
    }
    .about-features-curve svg {
        display: none;
    }
}

.products-showcase {
    background: #fff;
    padding: 60px 0;
    position: relative;
}

.products-showcase::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent, rgba(0,0,0,0.1), transparent);
}

.products-showcase-grid {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

.products-showcase h2 {
    text-align: center;
    font-size: 2em;
    margin-bottom: 40px;
    color: var(--primary-blue);
}

.products-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
    margin-bottom: 30px;
    position: relative;
}

.product-item {
    background: #fff;
    border-radius: 0;
    overflow: hidden;
    box-shadow: 0 2px 8px rgba(0,0,0,0.05);
    transition: transform 0.2s ease-out, box-shadow 0.2s ease-out;
    display: flex;
    flex-direction: column;
    align-items: center;
    padding: 15px;
    position: relative;
    cursor: pointer;
    will-change: transform;
    backface-visibility: hidden;
    transform: translateZ(0);
}

.product-item:hover {
    transform: translateY(-5px);
    box-shadow: 0 4px 12px rgba(0,0,0,0.08);
}

.product-item img {
    width: 100%;
    height: 200px;
    object-fit: cover;
    border-radius: 0;
    margin-bottom: 10px;
    transition: transform 0.2s ease-out;
    will-change: transform;
    backface-visibility: hidden;
    transform: translateZ(0);
}

.product-item:hover img {
    transform: scale(1.05);
}

.product-title {
    font-size: 1.1em;
    color: var(--primary-blue);
    text-align: center;
    margin-top: 10px;
    font-weight: 500;
}

.product-more-link {
    display: inline-block;
    text-align: center;
    margin-top: 40px;
    padding: 0;
    background: none;
    color: var(--primary-blue);
    text-decoration: none;
    font-weight: 600;
    font-size: 1.1em;
    letter-spacing: 1px;
    position: relative;
    transition: all 0.3s ease;
    grid-column: 1 / -1;
    justify-self: center;
}

.product-more-link::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 0;
    width: 100%;
    height: 2px;
    background: var(--primary-gradient);
    transform: scaleX(0);
    transform-origin: right;
    transition: transform 0.3s ease;
}

.product-more-link:hover {
    color: var(--primary-green);
    transform: translateX(5px);
}

.product-more-link:hover::after {
    transform: scaleX(1);
    transform-origin: left;
}

@media (max-width: 900px) {
    .product-more-link {
        font-size: 1em;
        margin-top: 30px;
    }
}

@media (max-width: 1200px) {
    .products-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 900px) {
    .products-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 600px) {
    .products-grid {
        grid-template-columns: 1fr;
    }
}

/* 预览弹窗样式 */
.preview-modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.7);
    z-index: 1000;
    justify-content: center;
    align-items: center;
    opacity: 0;
    transition: opacity 0.2s ease-out;
    will-change: opacity;
    backface-visibility: hidden;
    transform: translateZ(0);
}

.preview-modal.active {
    display: flex;
    opacity: 1;
}

.preview-content {
    position: relative;
    max-width: 90%;
    max-height: 90vh;
    transform: scale(0.9);
    transition: transform 0.2s ease-out;
    will-change: transform;
    backface-visibility: hidden;
    transform: translateZ(0);
}

.preview-modal.active .preview-content {
    transform: scale(1);
}

.preview-content img {
    max-width: 100%;
    max-height: 90vh;
    object-fit: contain;
    border-radius: 0;
    box-shadow: 0 4px 20px rgba(0,0,0,0.2);
}

.preview-close {
    position: absolute;
    top: -40px;
    right: 0;
    color: white;
    font-size: 2em;
    cursor: pointer;
    padding: 10px;
    transition: transform 0.3s ease, opacity 0.3s ease;
    opacity: 0.8;
}

.preview-close:hover {
    transform: rotate(90deg);
    opacity: 1;
}

/* 优化滚动性能 */
html {
    scroll-behavior: smooth;
}

/* 确保最后一个section有足够的底部间距 */
section:last-of-type {
    margin-bottom: 40px;
}

/* 产品展示页面样式 */
.products-page {
    padding: 60px 0;
    background: #fff;
    position: relative;
}

.products-page::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent, rgba(0,0,0,0.1), transparent);
}

.products-page h1 {
    font-size: 2em;
    color: var(--primary-blue);
    margin-bottom: 40px;
    text-align: center;
}

.product-list {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

.product-card {
    background: #fff;
    border-radius: 0;
    overflow: hidden;
    box-shadow: 0 2px 8px rgba(0,0,0,0.05);
    transition: transform 0.2s ease-out, box-shadow 0.2s ease-out;
    display: flex;
    flex-direction: column;
    align-items: center;
    padding: 20px;
}

.product-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 4px 12px rgba(0,0,0,0.08);
}

.product-card img {
    width: 100%;
    height: 200px;
    object-fit: cover;
    border-radius: 0;
    margin-bottom: 15px;
}

.product-card h3 {
    font-size: 1.2em;
    color: var(--primary-blue);
    margin: 0 0 10px 0;
    text-align: center;
}

.product-card p {
    font-size: 1em;
    color: #666;
    margin: 0 0 15px 0;
    text-align: center;
    line-height: 1.5;
}

.product-card .btn {
    display: inline-block;
    padding: 8px 20px;
    background: var(--primary-blue);
    color: #fff;
    text-decoration: none;
    border-radius: 4px;
    transition: background-color 0.3s ease;
    font-weight: 500;
}

.product-card .btn:hover {
    background: var(--primary-green);
}

@media (max-width: 1200px) {
    .product-list {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .product-list {
        grid-template-columns: 1fr;
    }
}

/* 产品分类样式 */
.product-category {
    margin-bottom: 60px;
}

.product-category h2 {
    font-size: 1.8em;
    color: var(--primary-blue);
    margin-bottom: 30px;
    text-align: center;
    position: relative;
    padding-bottom: 15px;
}

.product-category h2::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 60px;
    height: 3px;
    background: var(--primary-gradient);
    border-radius: 2px;
}

.product-category:last-child {
    margin-bottom: 0;
}

/* 调整产品列表样式 */
.product-list {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

@media (max-width: 1200px) {
    .product-list {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .product-list {
        grid-template-columns: 1fr;
    }
    
    .product-category h2 {
        font-size: 1.5em;
    }
}

/* 合作伙伴部分样式 */
.partners-section {
    padding: 60px 0;
    background-color: #f5f5f5;
}

.partners-section h2 {
    text-align: center;
    margin-bottom: 40px;
    color: #333;
    font-size: 28px;
}

.partners-list {
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    gap: 30px;
    max-width: 1200px;
    margin: 0 auto;
}

.partner-card {
    background: #fff;
    border-radius: 0;
    padding: 20px;
    text-align: center;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    transition: transform 0.3s ease;
}

.partner-card:hover {
    transform: translateY(-5px);
}

.partner-card img {
    width: 100%;
    height: 120px;
    object-fit: contain;
    margin-bottom: 15px;
}

.partner-card h3 {
    font-size: 16px;
    color: #333;
    margin-bottom: 10px;
}

.partner-card p {
    font-size: 14px;
    color: #666;
    line-height: 1.4;
}

/* 响应式调整 */
@media (max-width: 1200px) {
    .partners-list {
        grid-template-columns: repeat(4, 1fr);
    }
}

@media (max-width: 992px) {
    .partners-list {
        grid-template-columns: repeat(3, 1fr);
    }
}

@media (max-width: 768px) {
    .partners-list {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 480px) {
    .partners-list {
        grid-template-columns: 1fr;
    }
}

/* 硬件设施页面样式 */
.facility-page {
    padding: 80px 0 60px 0;
    background: #fff;
}

.facility-page h1 {
    text-align: center;
    font-size: 2.5em;
    color: var(--primary-blue);
    margin-bottom: 30px;
}

.facility-intro {
    text-align: center;
    max-width: 800px;
    margin: 0 auto 50px;
    font-size: 1.1em;
    color: #666;
    line-height: 1.6;
}

.facility-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 40px;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

.facility-card {
    background: #fff;
    border-radius: 0;
    overflow: hidden;
    box-shadow: 0 4px 20px rgba(0,0,0,0.08);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.facility-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 30px rgba(0,0,0,0.12);
}

.facility-image {
    width: 100%;
    height: 300px;
    overflow: hidden;
}

.facility-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.3s ease;
}

.facility-card:hover .facility-image img {
    transform: scale(1.05);
}

.facility-content {
    padding: 25px;
}

.facility-content h3 {
    font-size: 1.4em;
    color: var(--primary-blue);
    margin-bottom: 20px;
    line-height: 1.4;
}

.facility-info {
    margin-bottom: 25px;
}

.facility-info h4 {
    font-size: 1.1em;
    color: #333;
    margin: 15px 0 8px;
}

.facility-info p {
    color: #666;
    line-height: 1.6;
    margin-bottom: 15px;
}

.facility-info ul {
    list-style: none;
    padding: 0;
    margin: 0;
}

.facility-info li {
    color: #666;
    line-height: 1.6;
    padding-left: 20px;
    position: relative;
    margin-bottom: 8px;
}

.facility-info li::before {
    content: '•';
    color: var(--primary-blue);
    position: absolute;
    left: 0;
    font-size: 1.2em;
}

.btn-detail {
    display: inline-block;
    padding: 10px 25px;
    background: var(--primary-blue);
    color: #fff;
    border: none;
    border-radius: 6px;
    font-size: 1em;
    font-weight: 500;
    cursor: pointer;
    transition: background 0.3s ease;
}

.btn-detail:hover {
    background: var(--primary-green);
}

/* 响应式调整 */
@media (max-width: 1200px) {
    .facility-grid {
        grid-template-columns: 1fr;
        max-width: 800px;
    }
}

@media (max-width: 768px) {
    .facility-page {
        padding: 60px 0 40px 0;
    }
    
    .facility-page h1 {
        font-size: 2em;
    }
    
    .facility-intro {
        font-size: 1em;
        margin-bottom: 30px;
    }
    
    .facility-image {
        height: 250px;
    }
    
    .facility-content {
        padding: 20px;
    }
    
    .facility-content h3 {
        font-size: 1.2em;
    }
}

/* 设备详情弹窗样式 */
.facility-modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.8);
    z-index: 2000;
    opacity: 0;
    transition: opacity 0.3s ease;
}

.facility-modal.active {
    display: flex;
    opacity: 1;
}

.facility-modal-content {
    position: relative;
    width: 90%;
    max-width: 1000px;
    max-height: 90vh;
    margin: auto;
    background: #fff;
    border-radius: 0;
    overflow: hidden;
    transform: scale(0.9);
    transition: transform 0.3s ease;
}

.facility-modal.active .facility-modal-content {
    transform: scale(1);
}

.facility-modal-header {
    padding: 20px 30px;
    background: var(--primary-blue);
    color: #fff;
    position: relative;
}

.facility-modal-header h2 {
    margin: 0;
    font-size: 1.8em;
    line-height: 1.4;
}

.facility-modal-close {
    position: absolute;
    top: 20px;
    right: 20px;
    width: 30px;
    height: 30px;
    background: none;
    border: none;
    color: #fff;
    font-size: 24px;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: transform 0.3s ease;
}

.facility-modal-close:hover {
    transform: rotate(90deg);
}

.facility-modal-body {
    padding: 30px;
    max-height: calc(90vh - 100px);
    overflow-y: auto;
}

.facility-modal-section {
    margin-bottom: 30px;
}

.facility-modal-section:last-child {
    margin-bottom: 0;
}

.facility-modal-section h3 {
    color: var(--primary-blue);
    font-size: 1.4em;
    margin-bottom: 15px;
    padding-bottom: 10px;
    border-bottom: 2px solid var(--primary-blue);
}

.facility-modal-section p {
    color: #666;
    line-height: 1.6;
    margin-bottom: 15px;
}

.facility-modal-section ul {
    list-style: none;
    padding: 0;
    margin: 0;
}

.facility-modal-section li {
    color: #666;
    line-height: 1.6;
    padding-left: 20px;
    position: relative;
    margin-bottom: 10px;
}

.facility-modal-section li::before {
    content: '•';
    color: var(--primary-blue);
    position: absolute;
    left: 0;
    font-size: 1.2em;
}

.facility-modal-image {
    width: 100%;
    height: 400px;
    overflow: hidden;
    margin-bottom: 30px;
    border-radius: 0;
}

.facility-modal-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

/* 响应式调整 */
@media (max-width: 768px) {
    .facility-modal-content {
        width: 95%;
    }
    
    .facility-modal-header {
        padding: 15px 20px;
    }
    
    .facility-modal-header h2 {
        font-size: 1.4em;
    }
    
    .facility-modal-body {
        padding: 20px;
    }
    
    .facility-modal-image {
        height: 300px;
    }
    
    .facility-modal-section h3 {
        font-size: 1.2em;
    }
}

/* 图片预览样式 */
.image-preview-modal {
    background: rgba(0, 0, 0, 0.9);
}

.image-preview-content {
    max-width: 90%;
    max-height: 90vh;
    background: none;
    box-shadow: none;
}

.image-preview-container {
    width: 100%;
    height: calc(90vh - 60px);
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
}

.image-preview-container img {
    max-width: 100%;
    max-height: 100%;
    object-fit: contain;
    border-radius: 0;
    cursor: default;
}

.image-preview-title {
    color: #fff;
    text-align: center;
    font-size: 1.2em;
    margin-top: 20px;
    padding: 0 20px;
}

.facility-image {
    cursor: pointer;
}

.facility-image img {
    cursor: pointer;
}

.facility-modal-image {
    cursor: pointer;
}

.facility-modal-image img {
    cursor: pointer;
}

/* 响应式调整 */
@media (max-width: 768px) {
    .image-preview-content {
        max-width: 95%;
    }
    
    .image-preview-container {
        height: calc(90vh - 40px);
    }
    
    .image-preview-title {
        font-size: 1em;
        margin-top: 15px;
    }
}

/* 联系我们页面样式 */
.contact-section {
    padding: 60px 0;
    background-color: #f8f9fa;
}

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

.section-header h1 {
    font-size: 2.5rem;
    color: #333;
    margin-bottom: 10px;
}

.section-subtitle {
    font-size: 1.1rem;
    color: #666;
}

.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 30px;
    margin-bottom: 40px;
}

.contact-info-card {
    background: #fff;
    padding: 30px;
    border-radius: 0;
    box-shadow: 0 2px 15px rgba(0,0,0,0.1);
}

.info-item {
    display: flex;
    align-items: flex-start;
    margin-bottom: 25px;
}

.info-item i {
    font-size: 24px;
    color: #007bff;
    margin-right: 15px;
    margin-top: 5px;
}

.info-content h3 {
    font-size: 1.2rem;
    color: #333;
    margin-bottom: 5px;
}

.info-content p {
    color: #666;
    line-height: 1.5;
}

.qr-code {
    text-align: center;
    margin-top: 10px;
}

.qr-code img {
    width: 120px;
    height: 120px;
    margin-bottom: 10px;
}

.contact-form-card {
    background: #fff;
    padding: 30px;
    border-radius: 0;
    box-shadow: 0 2px 15px rgba(0,0,0,0.1);
}

.contact-form-card h2 {
    font-size: 1.8rem;
    color: #333;
    margin-bottom: 25px;
}

.message-form .form-group {
    margin-bottom: 20px;
}

.message-form input,
.message-form textarea {
    width: 100%;
    padding: 12px 15px;
    border: 1px solid #ddd;
    border-radius: 5px;
    font-size: 1rem;
    transition: border-color 0.3s;
}

.message-form textarea {
    height: 150px;
    resize: vertical;
}

.message-form input:focus,
.message-form textarea:focus {
    border-color: #007bff;
    outline: none;
}

.submit-btn {
    background: #007bff;
    color: #fff;
    padding: 12px 30px;
    border: none;
    border-radius: 5px;
    font-size: 1rem;
    cursor: pointer;
    transition: background-color 0.3s;
}

.submit-btn:hover {
    background: #0056b3;
}

.faq-section {
    background: #fff;
    padding: 30px;
    border-radius: 0;
    box-shadow: 0 2px 15px rgba(0,0,0,0.1);
}

.faq-section h2 {
    font-size: 1.8rem;
    color: #333;
    margin-bottom: 25px;
}

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

.faq-item {
    background: #f8f9fa;
    padding: 20px;
    border-radius: 0;
    transition: transform 0.3s;
}

.faq-item:hover {
    transform: translateY(-5px);
}

.faq-question {
    display: flex;
    align-items: center;
    margin-bottom: 15px;
}

.faq-question i {
    color: #007bff;
    font-size: 20px;
    margin-right: 10px;
}

.faq-question h3 {
    font-size: 1.1rem;
    color: #333;
    margin: 0;
}

.faq-answer p {
    color: #666;
    line-height: 1.5;
    margin: 0;
}

@media (max-width: 768px) {
    .contact-grid,
    .faq-grid {
        grid-template-columns: 1fr;
    }
    
    .section-header h1 {
        font-size: 2rem;
    }
    
    .contact-info-card,
    .contact-form-card {
        padding: 20px;
    }
}

@media (max-width: 600px) {
    .about-features {
        flex-direction: column;
        gap: 16px;
        max-width: 98vw;
        align-items: center;
    }
    .about-feature-item {
        min-width: 0 !important;
        max-width: none !important;
        width: 90vw !important;
        box-sizing: border-box;
        padding: 1.1em 0.7em 1em 0.7em !important;
        margin-bottom: 1.2em;
        display: flex;
        flex-direction: column;
        align-items: center;
        justify-content: center;
    }
    .about-feature-icon {
        font-size: 2em !important;
    }
    .about-feature-title {
        font-size: 1em !important;
    }
}

/* --- 首页 about 扁平化卡片风格 --- */
.about-features-flat {
    width: 100vw;
    max-width: 100vw;
    margin: 0;
    padding: 0 0 3em 0;
    background: #fff;
    box-sizing: border-box;
}
.about-features-flat-row {
    display: flex;
    justify-content: center;
    align-items: stretch;
    gap: 40px;
    width: 100%;
    max-width: 1280px;
    margin: 0 auto 2.2em auto;
    padding: 0 32px;
    box-sizing: border-box;
}
.about-feature-flat-item {
    flex: 0 0 270px;
    max-width: 270px;
    min-width: 0;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 3.2em 0 2.7em 0;
    background: #f5f7fa;
    border-radius: 0;
    box-shadow: 0 2px 18px 0 rgba(25,118,210,0.06);
    border: 1.5px solid #e5eaf1;
    transition: background 0.22s, box-shadow 0.22s, border-color 0.22s, transform 0.22s;
    position: relative;
}
.about-feature-flat-icon {
    font-size: 3.2em;
    color: #1976d2;
    margin-bottom: 0.8em;
    background: none;
    border-radius: 0;
    padding: 0;
    box-shadow: none;
    border: none;
    transition: color 0.22s;
}
.about-feature-flat-item:hover .about-feature-flat-icon {
    color: #145ea8;
}
.about-feature-flat-title {
    font-size: 1.32em;
    color: #222;
    font-weight: 700;
    margin-top: 0.38em;
    letter-spacing: 0.09em;
    text-align: center;
}
.about-feature-flat-item:hover .about-feature-flat-title {
    color: #1976d2;
}
.about-feature-flat-item:hover {
    background: #e3f2fd;
    box-shadow: 0 8px 32px 0 rgba(25,118,210,0.14);
    border-color: #1976d2;
    transform: translateY(-8px) scale(1.04);
    z-index: 2;
}
.about-flat-desc {
    font-size: 1.13em;
    color: #444;
    text-align: center;
    line-height: 1.8;
    letter-spacing: 0.1em;
    background: none;
    margin: 2.2em auto 0 auto;
    padding: 0 32px;
    max-width: 1200px;
    box-sizing: border-box;
}
@media (max-width: 1200px) {
    .about-features-flat-row {
        padding: 0 6vw;
    }
    .about-flat-desc {
        padding: 0 3vw;
    }
}
@media (max-width: 900px) {
    .about-features-flat-row {
        flex-direction: column;
        width: 98vw;
        max-width: 98vw;
        gap: 16px;
        padding: 0 4vw;
    }
    .about-feature-flat-item {
        border: 1.5px solid #e5eaf1;
        padding: 2em 0 1.6em 0;
    }
    .about-flat-desc {
        padding: 0 4vw;
    }
}

/* --- 公司简介大气扁平化风格 --- */
.company-intro-flat {
    background: #f5f7fa;
    padding: 70px 0 70px 0;
}
.company-intro-flex-flat {
    display: flex;
    align-items: flex-end;
    justify-content: center;
    gap: 80px;
    max-width: 1320px;
    margin: 0 auto;
    padding: 0 48px;
    box-sizing: border-box;
}
.company-intro-desc-flat {
    flex: 1 1 0;
    min-width: 340px;
    max-width: 720px;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: flex-start;
}
.company-intro-desc-flat h2 {
    font-size: 2.1em;
    color: #1976d2;
    font-weight: 800;
    margin-bottom: 1.1em;
    letter-spacing: 1.2px;
    text-align: left;
}
.company-intro-desc-flat p {
    font-size: 1.18em;
    color: #222;
    line-height: 2.2;
    letter-spacing: 0.04em;
    margin: 0;
    text-align: left;
}
.company-intro-logo-flat {
    flex: 0 0 360px;
    max-width: 360px;
    min-width: 220px;
    display: flex;
    align-items: center;
    justify-content: center;
    height: 300px;
    background: #fff;
    border-radius: 0;
    box-shadow: 0 2px 18px 0 rgba(25,118,210,0.06);
    border: 1.5px solid #e5eaf1;
    padding: 0;
}
.company-intro-logo-flat img {
    width: 92%;
    max-width: 320px;
    height: auto;
    display: block;
    margin: 0 auto;
}
@media (max-width: 1100px) {
    .company-intro-flex-flat {
        gap: 36px;
        padding: 0 3vw;
    }
    .company-intro-logo-flat {
        max-width: 240px;
        height: 160px;
    }
    .company-intro-logo-flat img {
        max-width: 180px;
    }
}
@media (max-width: 700px) {
    .company-intro-flex-flat {
        flex-direction: column;
        gap: 28px;
        padding: 0 2vw;
    }
    .company-intro-desc-flat {
        max-width: none;
        min-width: 0;
        align-items: flex-start;
    }
    .company-intro-logo-flat {
        width: 100%;
        max-width: 100vw;
        height: 100px;
    }
    .company-intro-logo-flat img {
        max-width: 90vw;
    }
}

.about-feature-flat-img {
    width: 64px;
    height: 64px;
    object-fit: cover;
    border-radius: 12px;
    margin-bottom: 10px;
    display: block;
    margin-left: auto;
    margin-right: auto;
    box-shadow: 0 2px 8px rgba(22,48,97,0.08);
}

.about-features-flat-row {
    display: flex;
    justify-content: center;
    align-items: stretch;
    gap: 32px;
    margin-bottom: 24px;
}

.about-feature-flat-img-block {
    width: 180px;
    height: 180px;
    object-fit: cover;
    display: block;
    max-width: 100%;
    background: none;
    border-radius: 0;
    box-shadow: none;
    transition: transform 0.22s cubic-bezier(.4,0,.2,1), box-shadow 0.22s cubic-bezier(.4,0,.2,1), filter 0.22s cubic-bezier(.4,0,.2,1);
}

.about-feature-flat-img-block:hover {
    transform: scale(1.06) rotate(-2deg);
    box-shadow: 0 8px 24px rgba(22,48,97,0.13);
    filter: brightness(1.08) saturate(1.12);
    z-index: 2;
}

@media (max-width: 900px) {
    .about-features-flat-row {
        gap: 16px;
    }
    .about-feature-flat-img-block {
        width: 90px;
        height: 90px;
    }
}
@media (max-width: 600px) {
    .about-features-flat-row {
        flex-wrap: wrap;
        gap: 10px;
    }
    .about-feature-flat-img-block {
        width: 100%;
        max-width: 320px;
        height: 90px;
        margin-left: auto;
        margin-right: auto;
    }
}