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

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    background-color: #f0f4ff;
    color: #1e293b;
    line-height: 1.5;
    overflow-x: hidden;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
}

h2 {
    font-size: clamp(1.8rem, 5vw, 2rem);
    font-weight: 700;
    margin-bottom: 1.5rem;
    color: #0f172a;
    letter-spacing: 0.5px;
}

h2 span {
    background: linear-gradient(135deg,#2563eb, #0ea5e9);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.section-desc {
    color: #475569;
    margin-bottom: 3rem;
    max-width: 700px;
}

/* 导航 */
header {
    position: sticky;
    top: 0;
    z-index: 100;
    background: rgba(255, 255, 255, 0.85);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid rgba(0, 0, 0, 0.05);
    padding: 16px 0;
}

.header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.logo {
    display: flex;
    align-items: center;
    gap: 10px;

    img {
        width: 15%;
    }
}

.logo i {
    font-size: 2rem;
    background: linear-gradient(135deg, #2563eb, #0ea5e9);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.logo-text {
    font-size: 1.25rem;
    font-weight: 700;
    letter-spacing: 1px;
    color: #0f172a;
}

.logo-text small {
    display: block;
    font-size: 0.65rem;
    font-weight: 400;
    color: #64748b;
    letter-spacing: 0.3px;
}

nav {
    display: flex;
    gap: 28px;
    align-items: center;
}

nav a {
    color: #475569;
    text-decoration: none;
    font-size: 0.9rem;
    font-weight: 500;
    transition: color 0.2s;
}

nav a:hover {
    color: #2563eb;
}

.btn-contact {
    background: linear-gradient(135deg, #2563eb, #0ea5e9);
    padding: 8px 20px;
    border-radius: 50px;
    color: #ffffff !important;
    font-weight: 600;
    font-size: 0.85rem;
    transition: opacity 0.2s;
}

.btn-contact:hover {
    opacity: 0.9;
}

/* 英雄区 */
.hero {
    padding: 80px 0 100px;
    position: relative;
    overflow: hidden;
}

.hero .assembly-line {
    img {
        width: 100%;
    }
}

.hero::before {
    content: '';
    position: absolute;
    top: -30%;
    right: -10%;
    width: 500px;
    height: 500px;
    background: radial-gradient(circle, rgba(37, 99, 235, 0.1) 0%, transparent 70%);
    border-radius: 50%;
    z-index: 0;
}

.hero .container {
    position: relative;
    z-index: 2;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}

.hero h1 {
    font-size: clamp(2.2rem, 6vw, 2.8rem);
    font-weight: 800;
    line-height: 1.3;
    margin-bottom: 1.5rem;
    color: #0f172a;
}

.hero h1 span {
    background: linear-gradient(135deg, #2563eb, #0ea5e9);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.hero p {
    font-size: 1.1rem;
    color: #475569;
    margin-bottom: 2rem;
}

.hero-stats {
    display: flex;
    gap: 3rem;
    margin-top: 2rem;
}

.hero-stat h3 {
    font-size: 2rem;
    font-weight: 700;
    color: #0f172a;
}

.hero-stat p {
    font-size: 0.85rem;
    color: #64748b;
    margin-bottom: 0;
}

.hero-image {
    background: white;
    border-radius: 20px;
    padding: 30px;
    display: flex;
    align-items: center;
    justify-content: center;
    border: 1px solid rgba(0,0,0,0.06);
    box-shadow: 0 20px 40px rgba(0,0,0,0.05);
}

.hero-image i {
    font-size: 8rem;
    background: linear-gradient(135deg, #2563eb, #0ea5e9);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    opacity: 0.8;
}

/* 关于我们 */
.about {
    padding: 80px 0;
    border-top: 1px solid rgba(0,0,0,0.06);
}

.about-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}

.about-text p {
    color: #475569;
    margin-bottom: 1.2rem;
}

.about-badges {
    display: flex;
    gap: 15px;
    flex-wrap: wrap;
    margin-top: 2rem;
}

.badge {
    background: rgba(37,99,235,0.08);
    border: 1px solid rgba(37,99,235,0.2);
    padding: 8px 18px;
    border-radius: 50px;
    font-size: 0.85rem;
    color: #2563eb;
    display: flex;
    align-items: center;
    gap: 6px;
}

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

.about-card {
    background: white;
    border: 1px solid rgba(0,0,0,0.06);
    border-radius: 16px;
    padding: 28px 24px;
    text-align: center;
    transition: transform 0.2s, box-shadow 0.2s;
    box-shadow: 0 4px 12px rgba(0,0,0,0.02);
}

.about-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 12px 24px rgba(0,0,0,0.06);
}

.about-card i {
    font-size: 2rem;
    background: linear-gradient(135deg, #2563eb, #0ea5e9);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    margin-bottom: 12px;
}

.about-card h4 {
    color: #0f172a;
    margin-bottom: 6px;
}

.about-card p {
    font-size: 0.85rem;
    color: #64748b;
}

.capacity-highlight {
    margin-top: 2rem;
    display: flex;
    gap: 2rem;
    flex-wrap: wrap;
}

.capacity-item {
    text-align: left;
}

.capacity-item strong {
    display: block;
    font-size: 1.5rem;
    color: #0f172a;
}

.capacity-item span {
    font-size: 0.8rem;
    color: #64748b;
}

/* 产品中心 */
.products {
    padding: 80px 0;
    border-top: 1px solid rgba(0,0,0,0.06);
}

.product-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 24px;
    margin-top: 2rem;
}

.product-card {
    background: white;
    border: 1px solid rgba(0,0,0,0.06);
    border-radius: 20px;
    padding: 36px 24px;
    text-align: center;
    transition: transform 0.2s, box-shadow 0.2s;
    box-shadow: 0 4px 12px rgba(0,0,0,0.02);
}

.product-card:hover {
    transform: translateY(-6px);
    box-shadow: 0 16px 32px rgba(0,0,0,0.08);
}

.product-icon {
    font-size: 2.8rem;
    background: linear-gradient(135deg, #2563eb, #0ea5e9);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    margin-bottom: 1rem;
}

.product-card h3 {
    font-size: 1.3rem;
    color: #0f172a;
    margin-bottom: 0.75rem;
}

.product-card p {
    font-size: 0.9rem;
    color: #475569;
    line-height: 1.6;
}

.product-tag {
    display: inline-block;
    margin-top: 1rem;
    background: rgba(37,99,235,0.1);
    color: #2563eb;
    padding: 4px 14px;
    border-radius: 20px;
    font-size: 0.75rem;
    font-weight: 600;
}

/* 新闻动态 */
.news {
    padding: 80px 0;
    border-top: 1px solid rgba(0,0,0,0.06);
}

.news-list {
    display: grid;
    gap: 20px;
    margin-top: 2rem;
}

.news-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 24px 0;
    border-bottom: 1px solid rgba(0,0,0,0.06);
    transition: color 0.2s;
}

.news-item:last-child {
    border-bottom: none;
}

.news-item:hover .news-title {
    color: #2563eb;
}

.news-title {
    font-size: 1.05rem;
    font-weight: 500;
    color: #1e293b;
    text-decoration: none;
    transition: color 0.2s;
}

.news-date {
    font-size: 0.85rem;
    color: #94a3b8;
    white-space: nowrap;
    margin-left: 24px;
}

/* 联系我们 */
.contact {
    padding: 80px 0 60px;
    border-top: 1px solid rgba(0,0,0,0.06);
}

.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    margin-top: 2rem;
}

.contact-info {
    display: flex;
    flex-direction: column;
    gap: 28px;
}

.contact-item {
    display: flex;
    align-items: flex-start;
    gap: 16px;
}

.contact-item i {
    font-size: 1.4rem;
    background: linear-gradient(135deg, #2563eb, #0ea5e9);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    margin-top: 4px;
}

.contact-item h4 {
    color: #0f172a;
    margin-bottom: 4px;
    font-size: 1rem;
}

.contact-item p {
    color: #475569;
    font-size: 0.95rem;
}

.contact-form {
    background: white;
    border: 1px solid rgba(0,0,0,0.06);
    border-radius: 20px;
    padding: 36px 28px;
    box-shadow: 0 10px 30px rgba(0,0,0,0.03);
}

.contact-form input,
.contact-form textarea {
    width: 100%;
    background:  #f8fafc;
    border: 1px solid #e2e8f0;
    border-radius: 12px;
    padding: 14px 18px;
    margin-bottom: 18px;
    color: #1e293b;
    font-size: 0.95rem;
    outline: none;
    transition: border-color 0.2s;
}

.contact-form input:focus,
.contact-form textarea:focus {
    border-color: #2563eb;
}

.contact-form textarea {
    min-height: 120px;
    resize: vertical;
}

.submit-btn {
    background: linear-gradient(135deg, #2563eb, #0ea5e9);
    border: none;
    color: white;
    font-weight: 700;
    padding: 14px 36px;
    border-radius: 50px;
    font-size: 1rem;
    cursor: pointer;
    transition: opacity 0.2s, box-shadow 0.2s;
    width: 100%;
    box-shadow: 0 8px 20px rgba(37,99,235,0.25);
}

.submit-btn:hover {
    opacity: 0.9;
    box-shadow: 0 12px 28px rgba(37,99,235,0.35);
}

/* 页脚 */
footer {
    border-top: 1px solid rgba(0,0,0,0.06);
    padding: 40px 0;
    text-align: center;
    background: white
}

footer .container {
    display: flex;
    flex-direction: column;
    gap: 16px;
    align-items: center;
}

footer p {
    color:  #64748b;
    font-size: 0.85rem;
}

footer .footer-links {
    display: flex;
    gap: 32px;
}

footer .footer-links a {
    color:  #475569;
    text-decoration: none;
    font-size: 0.85rem;
}
/* 轮播样式 */
.hero-slider {
  position: relative;
  width: 100%;
  aspect-ratio: 1 / 1;
  border-radius: 20px;
  overflow: hidden;
  background: #e2e8f0;
  border: 1px solid rgba(0,0,0,0.06);
  box-shadow: 0 20px 40px rgba(0,0,0,0.05);
}
.slider-wrapper {
  width: 100%;
  height: 100%;
  display: flex;
  transition: transform 0.5s ease-in-out;
}
.slide {
  min-width: 100%;
  height: 100%;
}
.slide img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}
.slider-arrow {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  background: rgba(255,255,255,0.9);
  backdrop-filter: blur(4px);
  border: 1px solid rgba(0,0,0,0.08);
  color: #2563eb;
  width: 36px;
  height: 36px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: background 0.2s;
  z-index: 2;
  font-size: 0.9rem;
}
.slider-arrow:hover {
  background: rgba(37,99,235,0.15);
  border-color: #2563eb;
}
.prev { left: 12px; }
.next { right: 12px; }
.slider-dots {
  position: absolute;
  bottom: 16px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  gap: 8px;
  z-index: 2;
}
.dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: #cbd5e1;
  border: none;
  cursor: pointer;
  transition: background 0.3s, transform 0.3s;
}
.dot.active {
  background: linear-gradient(135deg, #2563eb, #0ea5e9);
  transform: scale(1.3);
}

/* 移动端适配 */
@media (max-width: 768px) {

    .hero .container,
    .about-grid,
    .contact-grid {
        grid-template-columns: 1fr;
        gap: 40px;
    }

    .hero-image {
        order: -1;
    }

    .hero-stats {
        gap: 2rem;
    }

    nav {
        gap: 16px;
    }

    .logo-text {
        font-size: 1rem;
    }

    .product-grid {
        grid-template-columns: 1fr;
    }
}