:root {
    --color-primary: #0B5FA5;
    --color-primary-dark: #073F6E;
    --color-secondary: #1B8A5A;
    --color-secondary-dark: #12633F;
    --color-bg: #F5F8FA;
    --color-surface: #FFFFFF;
    --color-text: #1F2937;
    --color-muted: #6B7280;
    --color-border: #E2E8F0;
}

* { box-sizing: border-box; }

body {
    margin: 0;
    font-family: "Segoe UI", Arial, sans-serif;
    color: var(--color-text);
    background: var(--color-bg);
    line-height: 1.5;
}

a { color: var(--color-primary); text-decoration: none; }
a:hover { color: var(--color-secondary); }

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

header.site-header {
    background: linear-gradient(90deg, var(--color-primary-dark), var(--color-primary));
    color: #fff;
    padding: 14px 0;
}
header.site-header .container {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    justify-content: space-between;
    gap: 8px;
}
header.site-header a { color: #fff; }
header.site-header .brand { font-size: 20px; font-weight: 700; letter-spacing: .5px; }
header.site-header .contact-line { font-size: 13px; opacity: .9; }

nav.site-nav {
    background: var(--color-secondary);
}
nav.site-nav .container { display: flex; flex-wrap: wrap; gap: 4px; padding-top: 0; padding-bottom: 0; }
nav.site-nav a {
    display: inline-block;
    padding: 10px 14px;
    color: #fff;
    font-size: 14px;
    font-weight: 600;
}
nav.site-nav a:hover { background: var(--color-secondary-dark); }

.nav-dropdown { position: relative; }
.nav-dropdown .caret { font-size: 10px; margin-left: 2px; }
.nav-dropdown .dropdown-menu {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    min-width: 240px;
    background: var(--color-surface);
    border-radius: 0 0 6px 6px;
    box-shadow: 0 8px 20px rgba(0,0,0,.18);
    z-index: 100;
    overflow: hidden;
}
.nav-dropdown:hover .dropdown-menu,
.nav-dropdown:focus-within .dropdown-menu { display: block; }
.nav-dropdown .dropdown-menu a {
    display: block;
    color: var(--color-text);
    padding: 10px 16px;
    font-size: 13px;
    font-weight: 500;
}
.nav-dropdown .dropdown-menu a:hover { background: var(--color-bg); color: var(--color-primary); }

main { min-height: 60vh; padding: 24px 0; }

.breadcrumb { font-size: 13px; color: var(--color-muted); margin-bottom: 16px; }
.breadcrumb a { color: var(--color-primary); }

h1, h2, h3 { color: var(--color-primary-dark); }

.card {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: 8px;
    padding: 16px;
}

.grid { display: grid; gap: 16px; }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-4 { grid-template-columns: repeat(4, 1fr); }
@media (max-width: 900px) { .grid-3, .grid-4 { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 560px) { .grid-3, .grid-4 { grid-template-columns: 1fr; } }

.btn {
    display: inline-block;
    padding: 10px 18px;
    border-radius: 6px;
    border: none;
    background: var(--color-primary);
    color: #fff;
    font-weight: 600;
    cursor: pointer;
}
.btn:hover { background: var(--color-primary-dark); color: #fff; }
.btn-secondary { background: var(--color-secondary); }
.btn-secondary:hover { background: var(--color-secondary-dark); }

.spec-table { width: 100%; border-collapse: collapse; margin: 16px 0; }
.spec-table th, .spec-table td {
    border: 1px solid var(--color-border);
    padding: 8px 12px;
    text-align: left;
    font-size: 14px;
}
.spec-table th { background: var(--color-bg); width: 35%; color: var(--color-primary-dark); }

.product-card, .news-card { display: block; }
.product-card img, .news-card img {
    width: 100%; aspect-ratio: 4/3; object-fit: cover; border-radius: 6px; background: #eee;
}
.product-card .name, .news-card .name {
    margin-top: 8px; font-weight: 600; color: var(--color-text); font-size: 14px;
}
.img-fallback {
    object-fit: contain !important;
    background: var(--color-bg);
    padding: 18%;
    box-sizing: border-box;
    border: 1px dashed var(--color-border);
    opacity: .6;
}

.hero-slider {
    position: relative;
    height: 420px;
    border-radius: 8px;
    overflow: hidden;
    margin-bottom: 32px;
    background: var(--color-primary-dark);
}
.hero-slide {
    position: absolute;
    inset: 0;
    opacity: 0;
    transition: opacity .7s ease;
    pointer-events: none;
}
.hero-slide.active { opacity: 1; pointer-events: auto; }
.hero-slide-link { position: absolute; inset: 0; z-index: 5; }
.hero-img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; }
.hero-slide .img-fallback { position: absolute; inset: 0; width: 100%; height: 100%; padding: 15%; border: none; opacity: .3; }
.hero-overlay {
    position: absolute; inset: 0;
    background: linear-gradient(90deg, rgba(7,63,110,.88) 0%, rgba(7,63,110,.55) 55%, rgba(7,63,110,.15) 100%);
    display: flex;
    align-items: center;
}
.hero-content { padding: 0 48px; color: #fff; max-width: 620px; }
.hero-brand { font-size: 30px; font-weight: 800; letter-spacing: .5px; margin-bottom: 10px; }
.hero-tagline { font-size: 17px; opacity: .95; }
.hero-dots {
    position: absolute; bottom: 16px; left: 50%; transform: translateX(-50%);
    display: flex; gap: 8px; z-index: 10;
}
.hero-dot {
    width: 10px; height: 10px; border-radius: 50%; padding: 0;
    background: rgba(255,255,255,.5); border: none; cursor: pointer;
}
.hero-dot.active { background: #fff; }
@media (max-width: 700px) {
    .hero-slider { height: 260px; }
    .hero-content { padding: 0 24px; }
    .hero-brand { font-size: 20px; }
    .hero-tagline { font-size: 14px; }
}

.category-card {
    display: block;
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: 8px;
    overflow: hidden;
    text-align: center;
}
.category-card img, .category-card .img-fallback {
    width: 100%; height: 110px; object-fit: cover; border-radius: 0; display: block;
}
.category-card .img-fallback { object-fit: contain !important; padding: 22px; opacity: .5; border: none; }
.category-card .name { padding: 10px 12px; font-weight: 600; font-size: 14px; color: var(--color-text); }

form .field { margin-bottom: 14px; }
form label { display: block; font-weight: 600; margin-bottom: 4px; font-size: 14px; }
form input[type=text], form input[type=email], form input[type=tel], form textarea {
    width: 100%; padding: 10px; border: 1px solid var(--color-border); border-radius: 6px; font-size: 14px;
}
.field-error { color: #C0392B; font-size: 13px; margin-top: 4px; }
.alert { padding: 12px 16px; border-radius: 6px; margin-bottom: 16px; font-size: 14px; }
.alert-success { background: #E6F4EA; color: var(--color-secondary-dark); border: 1px solid var(--color-secondary); }
.alert-error { background: #FDECEA; color: #C0392B; border: 1px solid #E6B0AA; }

footer.site-footer {
    background: var(--color-primary-dark);
    color: #cfe3f5;
    padding: 32px 0 16px;
    margin-top: 40px;
    font-size: 14px;
}
footer.site-footer a { color: #cfe3f5; }
footer.site-footer .cols { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
@media (max-width: 700px) { footer.site-footer .cols { grid-template-columns: 1fr; } }
footer.site-footer .copyright {
    margin-top: 24px; padding-top: 16px; border-top: 1px solid rgba(255,255,255,.15);
    font-size: 12px; opacity: .8;
}