:root {
    --primary: #165DFF;
    --primary-dark: #0E42D2;
    --primary-light: #E8F0FF;
    --title-color: #1D2129;
    --text-color: #4E5969;
    --text-secondary: #86909C;
    --border-color: #E5E6EB;
    --bg-color: #F7F8FA;
    --white: #FFFFFF;
    --success: #00B42A;
    --warning: #FF7D00;
    --danger: #F53F3F;
}

* { box-sizing: border-box; }

body {
    font-family: "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
    color: var(--text-color);
    background-color: var(--bg-color);
    line-height: 1.6;
}

h1, h2, h3, h4, h5, h6 {
    color: var(--title-color);
    font-weight: 600;
    line-height: 1.3;
}

h1 { font-size: 2rem; }
h2 { font-size: 1.5rem; }
h3 { font-size: 1.25rem; }

a { color: var(--primary); text-decoration: none; transition: color 0.2s; }
a:hover { color: var(--primary-dark); }

.btn-primary { background-color: var(--primary); border-color: var(--primary); }
.btn-primary:hover { background-color: var(--primary-dark); border-color: var(--primary-dark); }

.btn-outline-primary { color: var(--primary); border-color: var(--primary); }
.btn-outline-primary:hover { background-color: var(--primary); border-color: var(--primary); }

.card {
    border: none;
    border-radius: 8px;
    box-shadow: 0 2px 8px rgba(0,0,0,0.06);
    transition: box-shadow 0.3s, transform 0.3s;
}
.card:hover {
    box-shadow: 0 8px 24px rgba(0,0,0,0.12);
    transform: translateY(-2px);
}

.navbar {
    background: var(--white);
    box-shadow: 0 1px 4px rgba(0,0,0,0.05);
    padding: 0.75rem 0;
}
.navbar-brand { font-size: 1.5rem; font-weight: 700; color: var(--primary) !important; }
.nav-link { color: var(--title-color) !important; font-weight: 500; }
.nav-link:hover, .nav-link.active { color: var(--primary) !important; }
.dropdown-menu { border: none; box-shadow: 0 4px 12px rgba(0,0,0,0.1); border-radius: 8px; }

.lang-switcher { display: flex; gap: 0.5rem; align-items: center; }
.lang-switcher .btn { font-size: 0.875rem; padding: 0.25rem 0.75rem; }

.section { padding: 4rem 0; }
.section-title { text-align: center; margin-bottom: 2.5rem; }
.section-title h2 { margin-bottom: 0.75rem; }
.section-title p { color: var(--text-secondary); margin-bottom: 0; }

.banner-carousel .carousel-item { height: 750px; background: #000; }
.banner-carousel .carousel-item img { width: 100%; height: 100%; object-fit: cover; opacity: 0.85; }
.banner-carousel .carousel-caption { bottom: 25%; text-align: left; }
.banner-carousel .carousel-caption h1 { font-size: 2.5rem; margin-bottom: 1rem; }
.banner-carousel .carousel-caption p { font-size: 1.125rem; margin-bottom: 1.5rem; }

.footer {
    background: #1D2129;
    color: #C9CDD4;
    padding: 3rem 0 1.5rem;
    margin-top: 4rem;
}
.footer h5 { color: var(--white); margin-bottom: 1rem; font-size: 1rem; }
.footer a { color: #C9CDD4; }
.footer a:hover { color: var(--white); }
.footer-bottom { border-top: 1px solid #2E3238; margin-top: 2rem; padding-top: 1.5rem; }

.breadcrumb-wrap {
    background: var(--white);
    border-bottom: 1px solid var(--border-color);
    padding: 1rem 0;
    margin-bottom: 2rem;
}

.video-container {
    position: relative;
    width: 100%;
    aspect-ratio: 16/9;
    background: #000;
    border-radius: 8px;
    overflow: hidden;
}
.video-container video,
.video-container iframe {
    width: 100%;
    height: 100%;
    border: none;
}

.product-gallery .gallery-main img {
    width: 100%;
    border-radius: 8px;
    margin-bottom: 1rem;
}
.product-gallery .gallery-thumbs {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 0.75rem;
}
.product-gallery .gallery-thumbs img {
    width: 100%;
    aspect-ratio: 1;
    object-fit: cover;
    border-radius: 6px;
    cursor: pointer;
    border: 2px solid transparent;
    transition: border-color 0.2s;
}
.product-gallery .gallery-thumbs img:hover { border-color: var(--primary); }

.specs-table { width: 100%; }
.specs-table th, .specs-table td { padding: 0.75rem 1rem; border-bottom: 1px solid var(--border-color); }
.specs-table th { background: var(--bg-color); width: 30%; color: var(--title-color); font-weight: 500; }

/* ===== 客户分布地图 ===== */
.map-wrapper {
    display: flex;
    gap: 20px;
    height: 600px;
}
.map-container {
    flex: 1;
    height: 600px;
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 2px 12px rgba(0,0,0,0.08);
}
#customer-map {
    width: 100%;
    height: 100%;
    z-index: 1;
}
.customer-list-panel {
    width: 320px;
    height: 600px;
    flex-shrink: 0;
    background: #fff;
    border-radius: 12px;
    box-shadow: 0 2px 12px rgba(0,0,0,0.08);
    overflow: hidden;
    display: flex;
    flex-direction: column;
}
.customer-list-header {
    padding: 16px 20px;
    border-bottom: 1px solid #eef0f4;
    background: #fafbfc;
    flex-shrink: 0;
}
.customer-list-header h5 {
    margin: 0;
    color: var(--title-color);
    font-size: 1rem;
}
.customer-list-header .count {
    color: var(--text-secondary);
    font-size: 0.8rem;
    margin-left: 8px;
}
.customer-list {
    flex: 1 1 auto;
    overflow-y: auto;
    list-style: none;
    padding: 0;
    margin: 0;
    height: 0;
}
.customer-list li {
    padding: 14px 20px;
    border-bottom: 1px solid #f3f5f8;
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 12px;
    transition: background 0.2s;
}
.customer-list li:hover {
    background: #f7f9fc;
}
.customer-list li.active {
    background: #eef4ff;
}
.customer-index {
    width: 28px;
    height: 28px;
    border-radius: 50%;
    background: var(--primary);
    color: #fff;
    font-size: 0.8rem;
    font-weight: 600;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}
.customer-name {
    flex: 1;
    color: var(--title-color);
    font-size: 0.9rem;
    line-height: 1.4;
}
.numbered-marker {
    background: var(--primary);
    color: #fff;
    border-radius: 50%;
    width: 32px;
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 600;
    font-size: 0.8rem;
    border: 2px solid #fff;
    box-shadow: 0 2px 6px rgba(0,0,0,0.3);
}

.leaflet-popup-content-wrapper { border-radius: 8px; }
.leaflet-popup-content { margin: 12px 16px; }
.leaflet-popup-content h6 { margin-bottom: 4px; color: var(--title-color); }
.leaflet-popup-content p { margin-bottom: 0; color: var(--text-secondary); font-size: 0.875rem; }

@media (max-width: 992px) {
    .map-wrapper {
        flex-direction: column;
        height: auto;
    }
    .map-container {
        height: 400px;
        flex: none;
    }
    .customer-list-panel {
        width: 100%;
        height: 300px;
        flex: none;
    }
}

.contact-form .form-control { border-radius: 8px; padding: 0.75rem 1rem; }
.contact-form textarea.form-control { resize: vertical; min-height: 120px; }

@media (max-width: 991.98px) {
    .banner-carousel .carousel-item { height: 560px; }
    .banner-carousel .carousel-caption h1 { font-size: 1.75rem; }
    .section { padding: 2.5rem 0; }
}

@media (max-width: 767.98px) {
    .banner-carousel .carousel-item { height: 440px; }
    .banner-carousel .carousel-caption { bottom: 20%; text-align: center; left: 10%; right: 10%; }
    .banner-carousel .carousel-caption h1 { font-size: 1.25rem; }
    .banner-carousel .carousel-caption p { font-size: 0.875rem; margin-bottom: 1rem; }
    h1 { font-size: 1.5rem; }
    h2 { font-size: 1.25rem; }
    h3 { font-size: 1.1rem; }
}