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

body {
    font-family: 'Inter', system-ui, -apple-system, 'Segoe UI', Roboto, 'Helvetica Neue', sans-serif;
    background-color: #ffffff;
    color: #1e2a3e;
    line-height: 1.5;
    scroll-behavior: smooth;
}

.container {
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 24px;
}

/* 导航栏 */
.navbar {
    background: rgba(255, 255, 255, 0.97);
    backdrop-filter: blur(10px);
    box-shadow: 0 2px 20px rgba(0, 0, 0, 0.04);
    position: sticky;
    top: 0;
    z-index: 100;
    border-bottom: 1px solid #e2e8f0;
}
.nav-container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    padding: 14px 24px;
    max-width: 1400px;
    margin: 0 auto;
}
.logo {
    font-size: 1.45rem;
    font-weight: 700;
    background: linear-gradient(135deg, #2c5f8a, #2c9b8f);
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
}
.logo span {
    font-weight: 500;
    font-size: 0.9rem;
    background: none;
    -webkit-background-clip: unset;
    color: #2c7a6b;
}
.nav-contact {
    display: flex;
    align-items: center;
    gap: 8px;
    background: #eaf3f8;
    padding: 6px 20px;
    border-radius: 60px;
    transition: all 0.2s;
}
.nav-contact i {
    font-size: 1.2rem;
    color: #1c6f8f;
}
.nav-contact a {
    font-size: 1.15rem;
    font-weight: 600;
    color: #1a5f7a;
    text-decoration: none;
    letter-spacing: 0.3px;
}
.nav-contact a:hover {
    color: #0a4056;
}
@media (max-width: 640px) {
    .nav-container {
        flex-direction: column;
        gap: 10px;
    }
    .logo {
        font-size: 1.3rem;
    }
}

/* Hero 区域 工业动效 */
.hero {
    background: linear-gradient(105deg, #1a4c66 0%, #2b7a6e 100%);
    padding: 90px 0;
    position: relative;
    overflow: hidden;
}
.hero::before {
    content: "";
    position: absolute;
    inset: 0;
    background-image: repeating-linear-gradient(45deg, rgba(255,255,245,0.06) 0px, rgba(255,255,245,0.06) 2px, transparent 2px, transparent 12px);
    animation: shiftGrid 24s linear infinite;
}
@keyframes shiftGrid {
    0% { background-position: 0 0; }
    100% { background-position: 50px 50px; }
}
.hero-content {
    position: relative;
    z-index: 2;
    text-align: center;
    max-width: 880px;
    margin: 0 auto;
    color: white;
}
.hero-content h1 {
    font-size: 3rem;
    font-weight: 800;
    margin-bottom: 20px;
    background: linear-gradient(135deg, #fff, #c6f0e8);
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
    animation: fadeUp 0.7s;
}
.hero-badge {
    background: rgba(0, 45, 55, 0.5);
    backdrop-filter: blur(5px);
    border-radius: 40px;
    padding: 8px 28px;
    display: inline-block;
    margin-bottom: 20px;
    font-weight: 500;
    border: 1px solid rgba(150, 220, 210, 0.6);
}
.hero-content p {
    font-size: 1.2rem;
    margin-bottom: 32px;
    max-width: 700px;
    margin-left: auto;
    margin-right: auto;
    opacity: 0.96;
    animation: fadeUp 0.7s 0.1s backwards;
}
.hero-stats {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: 28px;
    animation: fadeUp 0.7s 0.2s backwards;
}
.hero-stats div {
    background: rgba(0, 55, 65, 0.6);
    padding: 8px 24px;
    border-radius: 40px;
    font-weight: 500;
    backdrop-filter: blur(4px);
}
@keyframes fadeUp {
    from { opacity: 0; transform: translateY(28px); }
    to { opacity: 1; transform: translateY(0); }
}
@media (max-width: 768px) {
    .hero { padding: 60px 0; }
    .hero-content h1 { font-size: 2rem; }
    .hero-content p { font-size: 1rem; }
}

/* 公司介绍区域 */
.about-section {
    padding: 80px 0;
    background: #ffffff;
}
.about-grid {
    display: flex;
    gap: 48px;
    align-items: center;
    flex-wrap: wrap;
}
.about-text {
    flex: 1.2;
}
.about-text h2 {
    font-size: 2rem;
    font-weight: 700;
    color: #2c5f8a;
    margin-bottom: 20px;
    border-left: 5px solid #f2a83c;
    padding-left: 20px;
}
.about-text p {
    margin-bottom: 18px;
    color: #2f4b62;
    line-height: 1.85;
}
.about-text .contact-inline {
    background: #eef4f9;
    padding: 12px 24px;
    border-radius: 48px;
    display: inline-block;
    margin-top: 12px;
    font-weight: 600;
    color: #1c6f8f;
}
.about-image {
    flex: 0.8;
    text-align: center;
}
.about-image img {
    width: 100%;
    max-width: 600px;
    height: auto;
    border-radius: 32px;
    box-shadow: 0 20px 35px -12px rgba(0, 0, 0, 0.12);
    transition: transform 0.3s;
}
.about-image img:hover {
    transform: scale(1.01);
}
@media (max-width: 900px) {
    .about-grid { flex-direction: column; }
    .about-text { order: 1; }
    .about-image { order: 0; margin-bottom: 24px; }
}

/* 产品系列 */
.product-series {
    padding: 70px 0;
    background: #fafefe;
    border-bottom: 1px solid #e2edf2;
}
.section-title {
    text-align: center;
    font-size: 2.2rem;
    font-weight: 700;
    margin-bottom: 14px;
    color: #2c5f8a;
}
.section-sub {
    text-align: center;
    color: #5c859b;
    max-width: 720px;
    margin: 0 auto 48px auto;
    font-size: 1rem;
}
.product-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 28px;
}
.product-card {
    background: white;
    border-radius: 28px;
    overflow: hidden;
    transition: all 0.35s cubic-bezier(0.2, 0, 0, 1);
    box-shadow: 0 6px 16px rgba(0, 0, 0, 0.04);
    border: 1px solid #e2edf2;
}
.product-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 28px 38px -14px rgba(0, 0, 0, 0.12);
    border-color: #c7dfea;
}
.product-img {
    aspect-ratio: 1 / 1;
    width: 100%;
    background: #f2f9fe;
    overflow: hidden;
}
.product-img img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s;
}
.product-card:hover .product-img img {
    transform: scale(1.04);
}
.product-info {
    padding: 18px 12px 22px;
    text-align: center;
}
.product-info h4 {
    font-size: 1rem;
    font-weight: 600;
    color: #2c7394;
}
@media (max-width: 1024px) {
    .product-grid { gap: 22px; }
}
@media (max-width: 820px) {
    .product-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 520px) {
    .product-grid { grid-template-columns: 1fr; }
    .section-title { font-size: 1.9rem; }
}

/* 其他产品分类卡片 */
.other-products {
    background: #fbfefe;
    padding: 60px 0;
}
.other-title {
    text-align: center;
    font-size: 1.8rem;
    font-weight: 700;
    color: #2c5f8a;
    margin-bottom: 36px;
}
.product-category-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
}
.category-card {
    background: white;
    border-radius: 28px;
    padding: 28px 24px;
    text-align: center;
    transition: 0.25s;
    border: 1px solid #e2edf2;
    box-shadow: 0 4px 12px rgba(0,0,0,0.04);
}
.category-card:hover {
    transform: translateY(-5px);
    border-color: #c7dfea;
}
.category-icon {
    font-size: 2.5rem;
    margin-bottom: 16px;
}
.category-card h3 {
    font-size: 1.4rem;
    color: #2c7394;
    margin-bottom: 12px;
}
.category-card p {
    color: #5c859b;
    font-size: 0.9rem;
}
@media (max-width: 820px) {
    .product-category-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 520px) {
    .product-category-grid { grid-template-columns: 1fr; }
}

/* 核心优势区域 */
.advantage-section {
    background: linear-gradient(145deg, #eef6fa, #f7fcfd);
    padding: 70px 0;
}
.advantage-grid {
    display: flex;
    flex-wrap: wrap;
    gap: 32px;
    justify-content: center;
    margin-bottom: 30px;
}
.advantage-card {
    background: white;
    border-radius: 32px;
    padding: 28px 26px;
    flex: 1 1 260px;
    transition: 0.25s;
    border: 1px solid #ddecf3;
    box-shadow: 0 6px 12px rgba(0, 0, 0, 0.02);
}
.advantage-card:hover {
    transform: translateY(-5px);
    border-color: #c4deea;
}
.advantage-icon {
    font-size: 2.4rem;
    margin-bottom: 18px;
}
.advantage-card h3 {
    font-size: 1.35rem;
    margin-bottom: 12px;
    color: #2c5f8a;
}
.advantage-card p {
    color: #4c6f84;
    font-size: 0.92rem;
}
.cert-badge {
    background: #ffffffdd;
    border-radius: 60px;
    padding: 16px 28px;
    display: inline-flex;
    flex-wrap: wrap;
    gap: 28px;
    margin: 20px auto 0;
    border: 1px solid #d4e4ec;
    justify-content: center;
}
.cert-badge span {
    font-weight: 500;
    color: #1d708f;
}

.data-empty{
    padding:42px;
    border:1px dashed #d5e1ee;
    border-radius:14px;
    text-align:center;
    color:var(--geo-muted);
    background:#fff
}

/* 底部 */
.footer {
    background: #123e52;
    color: #cde3ed;
    padding: 48px 0 28px;
}
.footer-inner {
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 24px;
    text-align: center;
}
.friend-links {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 24px;
    margin: 20px 0 16px;
}
.friend-links a {
    color: #b6d5e6;
    text-decoration: none;
    font-size: 0.85rem;
    transition: 0.2s;
}
.friend-links a:hover {
    color: #f5c68a;
}
.footer-copyright {
    font-size: 0.85rem;
    opacity: 0.85;
    margin-top: 28px;
    border-top: 1px solid #306f88;
    padding-top: 24px;
}

/* 移动端一键拨号 */
.call-button {
    position: fixed;
    bottom: 24px;
    right: 24px;
    background: #e68a2e;
    color: white;
    width: 60px;
    height: 60px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.3);
    z-index: 999;
    text-decoration: none;
    transition: 0.2s;
}
.call-button i {
    font-size: 28px;
    font-style: normal;
}
.call-button:hover {
    background: #c76d1c;
    transform: scale(1.05);
}
@media (min-width: 769px) {
    .call-button {
        display: none;
    }
}
.inline-phone {
    font-weight: 700;
    background: #e0f0f7;
    padding: 2px 14px;
    border-radius: 30px;
    color: #1c6f8f;
}