* {
    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: #1e2a32;
    line-height: 1.5;
    scroll-behavior: smooth;
}

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

/* 导航栏 */
.navbar {
    background: rgba(255, 255, 255, 0.96);
    backdrop-filter: blur(8px);
    box-shadow: 0 2px 12px rgba(0, 0, 0, 0.04);
    position: sticky;
    top: 0;
    z-index: 100;
    border-bottom: 1px solid #eef2f6;
}
.nav-container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    padding: 16px 24px;
    max-width: 1400px;
    margin: 0 auto;
}
.logo {
    font-size: 1.4rem;
    font-weight: 700;
    background: linear-gradient(135deg, #c2410c, #e65c1e);
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
    letter-spacing: -0.2px;
}
.logo span {
    font-weight: 500;
    font-size: 0.95rem;
    color: #a35c2e;
    background: none;
    -webkit-background-clip: unset;
}
.nav-contact {
    display: flex;
    align-items: center;
    gap: 12px;
    background: #fef3e9;
    padding: 8px 20px;
    border-radius: 60px;
    transition: all 0.2s;
}
.nav-contact i {
    font-size: 1.2rem;
    color: #c2410c;
}
.nav-contact a {
    font-size: 1.15rem;
    font-weight: 600;
    color: #b33c0c;
    text-decoration: none;
    letter-spacing: 0.3px;
}
.nav-contact a:hover {
    color: #8a2d08;
}
@media (max-width: 640px) {
    .nav-container {
        flex-direction: column;
        gap: 12px;
        padding: 12px 20px;
    }
    .nav-contact {
        padding: 6px 16px;
    }
}

/* Banner 区域 (纯文本+动画背景) */
.hero {
    background: linear-gradient(115deg, #1f2e3a 0%, #2c4a5c 100%);
    padding: 90px 0;
    position: relative;
    overflow: hidden;
}
.hero::after {
    content: "";
    position: absolute;
    inset: 0;
    background: url('data:image/svg+xml;utf8,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 800 800" opacity="0.08"><path fill="none" stroke="%23ffaa77" stroke-width="1.5" d="M200 200 L600 200 M200 400 L600 400 M200 600 L600 600 M400 200 L400 600 M100 100 L700 700 M100 700 L700 100"/></svg>') repeat;
    animation: drift 32s linear infinite;
}
@keyframes drift {
    0% { background-position: 0 0; }
    100% { background-position: 80px 80px; }
}
.hero-content {
    position: relative;
    z-index: 2;
    text-align: center;
    max-width: 880px;
    margin: 0 auto;
    color: white;
    padding: 0 24px;
}
.hero-content h1 {
    font-size: 3.2rem;
    font-weight: 700;
    margin-bottom: 20px;
    letter-spacing: -0.02em;
    background: linear-gradient(to right, #fff, #ffdec5);
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
    text-shadow: 0 2px 8px rgba(0,0,0,0.1);
    animation: fadeUp 0.7s ease-out;
}
.hero-badge {
    display: inline-block;
    background: rgba(255,140,70,0.25);
    backdrop-filter: blur(5px);
    border-radius: 60px;
    padding: 8px 28px;
    font-weight: 500;
    margin-bottom: 22px;
    font-size: 0.95rem;
    border: 1px solid rgba(255,165,100,0.5);
}
.hero-content p {
    font-size: 1.2rem;
    margin-bottom: 28px;
    opacity: 0.95;
    max-width: 700px;
    margin-left: auto;
    margin-right: auto;
    animation: fadeUp 0.7s 0.1s backwards;
}
.hero-stats {
    display: flex;
    justify-content: center;
    gap: 36px;
    flex-wrap: wrap;
    animation: fadeUp 0.7s 0.2s backwards;
}
.hero-stats div {
    font-size: 1rem;
    font-weight: 500;
    background: rgba(0,0,0,0.3);
    padding: 8px 20px;
    border-radius: 40px;
    backdrop-filter: blur(4px);
}
@keyframes fadeUp {
    from { opacity: 0; transform: translateY(26px); }
    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: #fefcf9;
}
.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: #c23f0e;
    margin-bottom: 20px;
    border-left: 5px solid #e66a2e;
    padding-left: 20px;
}
.about-text p {
    margin-bottom: 18px;
    color: #2c3e4e;
    line-height: 1.85;
}
.about-text .highlight-phone {
    background: #fff0e6;
    padding: 10px 18px;
    border-radius: 36px;
    display: inline-block;
    font-weight: 600;
    color: #bc4a18;
    margin-top: 10px;
}
.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 30px -12px rgba(0,0,0,0.15);
    transition: 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; }
}

/* 产品系列公用 */
.section-title {
    text-align: center;
    font-size: 2.2rem;
    font-weight: 700;
    margin-bottom: 14px;
    color: #1f3b47;
}
.section-sub {
    text-align: center;
    color: #5f6c7a;
    max-width: 720px;
    margin: 0 auto 48px auto;
    font-size: 1rem;
}
.product-series {
    padding: 64px 0;
    background: #ffffff;
    border-bottom: 1px solid #f0f3f8;
}
.product-series:nth-child(even) {
    background: #fefaf7;
}
.product-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 28px;
}
.product-card {
    background: white;
    border-radius: 24px;
    overflow: hidden;
    transition: all 0.3s cubic-bezier(0.2, 0, 0, 1);
    box-shadow: 0 6px 14px rgba(0, 0, 0, 0.04);
    border: 1px solid #edece8;
}
.product-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 24px 36px -12px rgba(0, 0, 0, 0.12);
    border-color: #e2cfbc;
}
.product-img {
    aspect-ratio: 1 / 1;
    width: 100%;
    background: #faf6f0;
    overflow: hidden;
}
.product-img img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s ease;
}
.product-card:hover .product-img img {
    transform: scale(1.05);
}
.product-info {
    padding: 18px 12px 22px;
    text-align: center;
}
.product-info h4 {
    font-size: 1rem;
    font-weight: 600;
    color: #b74918;
}
@media (max-width: 1024px) {
    .product-grid { gap: 20px; }
}
@media (max-width: 820px) {
    .product-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 500px) {
    .product-grid { grid-template-columns: 1fr; }
    .section-title { font-size: 1.9rem; }
}

/* 核心优势区域 */
.advantage-section {
    background: linear-gradient(145deg, #f7f3ef 0%, #fefaf5 100%);
    padding: 70px 0;
}
.advantage-grid {
    display: flex;
    flex-wrap: wrap;
    gap: 30px;
    justify-content: center;
}
.advantage-card {
    background: white;
    border-radius: 28px;
    padding: 30px 24px;
    flex: 1 1 280px;
    transition: 0.25s;
    border: 1px solid #f0e2d4;
    box-shadow: 0 5px 12px rgba(0,0,0,0.02);
}
.advantage-card:hover {
    transform: translateY(-5px);
    border-color: #deb887;
    box-shadow: 0 14px 28px -10px rgba(0,0,0,0.08);
}
.advantage-icon {
    font-size: 2.5rem;
    margin-bottom: 18px;
}
.advantage-card h3 {
    font-size: 1.4rem;
    margin-bottom: 12px;
    color: #bb481c;
}
.advantage-card p {
    color: #4a5b69;
    font-size: 0.92rem;
}
.stats-badge {
    background: #e66a2e10;
    text-align: center;
    margin-top: 40px;
    padding: 16px;
    border-radius: 60px;
    font-size: 0.95rem;
    font-weight: 500;
    color: #b44618;
    border: 1px dashed #e0b18c;
    width: fit-content;
    margin-left: auto;
    margin-right: auto;
}

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

/* 底部 */
.footer {
    background: #14212b;
    color: #cbdbe0;
    padding: 44px 0 28px;
}
.footer-inner {
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 24px;
    text-align: center;
}
.footer-copyright {
    font-size: 0.85rem;
    opacity: 0.8;
    margin-top: 28px;
    border-top: 1px solid #2f4858;
    padding-top: 24px;
}
.friend-links {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 24px;
    margin: 20px 0 12px;
}
.friend-links a {
    color: #bcbcce;
    text-decoration: none;
    font-size: 0.85rem;
    transition: color 0.2s;
}
.friend-links a:hover {
    color: #ffb57c;
}

/* 移动端一键拨号 */
.call-button {
    position: fixed;
    bottom: 24px;
    right: 24px;
    background: #e05a2a;
    color: white;
    width: 58px;
    height: 58px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 8px 20px 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: #bd4012;
    transform: scale(1.05);
}
@media (min-width: 769px) {
    .call-button { display: none; }
}
.inline-phone {
    font-weight: 700;
    background: #fdeadf;
    padding: 2px 14px;
    border-radius: 40px;
    color: #bf4b1a;
}