/* --- 核心配色 (工业蓝风格) --- */
:root {
    --primary: #0f172a;       /* 深蓝：稳重 */
    --accent: #0056b3;        /* 亮蓝：行动 */
    --bg-gray: #f8fafc;       /* 浅灰：背景 */
    --border-c: #e2e8f0;      /* 边框色 */
}

body {
    font-family: 'Inter', sans-serif;
    color: #334155;
    margin: 0;
    padding-top: 0; /* 所有页面都不留空 */
}

/* --- 导航栏 --- */
.navbar {
    background: rgba(255, 255, 255, 0.98) !important;
    background-color: rgba(255, 255, 255, 0.98) !important;
    border-bottom: none;
    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.05);
    transition: all 0.3s ease;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1030;
    width: 100%;
}

/* 首页顶部时导航透明效果 - 使用更高优先级 */
#mainNav.navbar-home.navbar-at-top {
    background: transparent !important;
    background-color: transparent !important;
    background-image: none !important;
    border-bottom: none !important;
    box-shadow: none !important;
    backdrop-filter: none;
    -webkit-backdrop-filter: none;
}

#mainNav.navbar-home.navbar-at-top .navbar-brand {
    color: #ffffff !important;
    font-size: 1.5rem !important;
    font-weight: 800 !important;
}

#mainNav.navbar-home.navbar-at-top .nav-link {
    color: rgba(255, 255, 255, 0.95) !important;
}

#mainNav.navbar-home.navbar-at-top .nav-link:hover,
#mainNav.navbar-home.navbar-at-top .nav-link.active {
    color: #ffffff !important;
}

/* 导航栏按钮默认蓝色（所有页面和滚动后） - 使用最高优先级 */
.navbar .btn-primary,
#mainNav .btn-primary,
nav.navbar .btn-primary,
.navbar .btn.btn-primary,
#mainNav .btn.btn-primary,
.navbar a.btn-primary,
#mainNav a.btn-primary {
    background-color: #007bff !important;
    border-color: #007bff !important;
    color: #ffffff !important;
}

.navbar .btn-primary:hover,
#mainNav .btn-primary:hover,
nav.navbar .btn-primary:hover,
.navbar .btn.btn-primary:hover,
#mainNav .btn.btn-primary:hover,
.navbar a.btn-primary:hover,
#mainNav a.btn-primary:hover {
    background-color: #0056b3 !important;
    border-color: #0056b3 !important;
    color: #ffffff !important;
}

/* 首页顶部透明状态的按钮样式（覆盖默认蓝色） */
#mainNav.navbar-home.navbar-at-top .btn-primary {
    background-color: transparent !important;
    border: 2px solid #ffffff !important;
    color: #ffffff !important;
}

#mainNav.navbar-home.navbar-at-top .btn-primary:hover {
    background-color: #ffffff !important;
    color: var(--primary) !important;
}

#mainNav.navbar-home.navbar-at-top .navbar-toggler-icon {
    filter: invert(1);
}

#mainNav.navbar-home.navbar-at-top .navbar-toggler {
    border-color: rgba(255, 255, 255, 0.5);
}

.navbar-brand { 
    font-weight: 800; 
    color: var(--primary) !important; 
    font-size: 1.5rem; 
}

.nav-link,
.navbar-nav .nav-link,
.navbar .nav-link { 
    font-weight: 600; 
    color: #475569 !important; 
    padding: 0.5rem 1rem !important;
    text-transform: uppercase; 
    font-size: 0.85rem;
    transition: color 0.3s ease;
    text-decoration: none !important;
}

.nav-link:hover,
.navbar-nav .nav-link:hover,
.navbar .nav-link:hover,
#mainNav .nav-link:hover,
#mainNav .navbar-nav .nav-link:hover { 
    color: var(--accent) !important; 
    text-decoration: none !important;
}

.nav-link.active,
.navbar-nav .nav-link.active,
.navbar .nav-link.active {
    color: var(--accent) !important;
    text-decoration: none !important;
}

/* 强制移除所有链接的下划线 */
.navbar a,
.navbar-nav a {
    text-decoration: none !important;
}

/* 首页顶部透明导航栏时，所有链接为白色 */
#mainNav.navbar-home.navbar-at-top .nav-link:link,
#mainNav.navbar-home.navbar-at-top .nav-link:visited,
#mainNav.navbar-home.navbar-at-top .nav-link,
#mainNav.navbar-home.navbar-at-top .navbar-nav .nav-link,
#mainNav.navbar-home.navbar-at-top .nav-link.active,
#mainNav.navbar-home.navbar-at-top a.nav-link:link,
#mainNav.navbar-home.navbar-at-top a.nav-link:visited,
#mainNav.navbar-home.navbar-at-top a.nav-link,
#mainNav.navbar-home.navbar-at-top .navbar-nav a:link,
#mainNav.navbar-home.navbar-at-top .navbar-nav a:visited,
#mainNav.navbar-home.navbar-at-top .navbar-nav a,
#mainNav.navbar-home.navbar-at-top .navbar-nav li a:link,
#mainNav.navbar-home.navbar-at-top .navbar-nav li a:visited,
#mainNav.navbar-home.navbar-at-top .navbar-nav li a {
    color: #ffffff !important;
    font-weight: 600 !important;
    padding: 0.5rem 1rem !important;
    text-transform: uppercase !important;
    font-size: 0.85rem !important;
}

#mainNav.navbar-home.navbar-at-top .nav-link:hover,
#mainNav.navbar-home.navbar-at-top a.nav-link:hover,
#mainNav.navbar-home.navbar-at-top .navbar-nav a:hover {
    color: rgba(255, 255, 255, 0.8) !important;
}

/* 滚动后，所有链接为深色 - 添加伪类选择器 */
#mainNav.navbar-home:not(.navbar-at-top) .nav-link:link,
#mainNav.navbar-home:not(.navbar-at-top) .nav-link:visited,
#mainNav.navbar-home:not(.navbar-at-top) .nav-link,
#mainNav.navbar-home:not(.navbar-at-top) .navbar-nav .nav-link,
#mainNav.navbar-home:not(.navbar-at-top) a.nav-link:link,
#mainNav.navbar-home:not(.navbar-at-top) a.nav-link:visited,
#mainNav.navbar-home:not(.navbar-at-top) a.nav-link,
#mainNav.navbar-home:not(.navbar-at-top) .navbar-nav a:link,
#mainNav.navbar-home:not(.navbar-at-top) .navbar-nav a:visited,
#mainNav.navbar-home:not(.navbar-at-top) .navbar-nav a,
#mainNav.navbar-home:not(.navbar-at-top) .navbar-nav li a:link,
#mainNav.navbar-home:not(.navbar-at-top) .navbar-nav li a:visited,
#mainNav.navbar-home:not(.navbar-at-top) .navbar-nav li a {
    color: #475569 !important;
    font-weight: 600 !important;
    padding: 0.5rem 1rem !important;
    text-transform: uppercase !important;
    font-size: 0.85rem !important;
}

.navbar-nav {
    gap: 0.5rem;
}

/* --- Banner 首屏（轮播容器） --- */
.hero-section {
    height: 100vh;
    position: relative;
    color: #ffffff;
    overflow: hidden;
}
.hero-section .carousel,
.hero-section .carousel-inner,
.hero-section .carousel-item {
    height: 100%;
}
.hero-slide {
    position: relative;
    height: 100%;
    background-size: cover;
    background-position: center;
}
.hero-slide::before {
    content: "";
    position: absolute;
    inset: 0;
    background: linear-gradient(rgba(15, 23, 42, 0.75), rgba(15, 23, 42, 0.75));
}
.hero-slide .container {
    position: relative;
    z-index: 1;
}
.hero-slide-1 {
    background-image: url('https://images.pexels.com/photos/257700/pexels-photo-257700.jpeg?auto=compress&cs=tinysrgb&w=1920');
}
.hero-slide-2 {
    background-image: url('https://images.pexels.com/photos/1108101/pexels-photo-1108101.jpeg?auto=compress&cs=tinysrgb&w=1920');
}
.hero-slide-3 {
    background-image: url('https://images.pexels.com/photos/3737368/pexels-photo-3737368.jpeg?auto=compress&cs=tinysrgb&w=1920');
}

/* --- 卡片强制对齐逻辑 (Strict Grid) --- */
.strict-card {
    border: 1px solid var(--border-c);
    border-radius: 8px;
    background: #fff;
    height: 100%; /* 撑满高度 */
    display: flex;
    flex-direction: column; /* 垂直布局 */
    transition: all 0.3s ease;
    overflow: hidden;
}
.strict-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 20px 25px -5px rgba(0, 0, 0, 0.1);
    border-color: var(--accent);
}

/* 图片容器固定高度 */
.card-img-box {
    height: 240px;
    background: #f1f5f9 url('/static/images/nopic.png') center center no-repeat;
    background-size: 60%;
    border-bottom: 1px solid var(--border-c);
    overflow: hidden;
    position: relative;
}
.card-img-box img {
    width: 100%;
    height: 100%;
    object-fit: cover; /* 自动裁剪，不变形 */
    transition: transform 0.5s ease;
    background: #f1f5f9;
    position: relative;
    z-index: 1;
    /* 隐藏破损图片的alt文本 */
    color: transparent;
    font-size: 0;
    text-indent: -9999px;
}
/* 图片加载失败时完全隐藏 */
.card-img-box img[src=""],
.card-img-box img:not([src]) {
    display: none;
}
.strict-card:hover .card-img-box img {
    transform: scale(1.08);
}

/* 内容区自动填充 */
.card-content {
    padding: 25px;
    flex-grow: 1;
    display: flex;
    flex-direction: column;
}
.card-title {
    font-weight: 700;
    color: var(--primary);
    margin-bottom: 10px;
}
.card-desc {
    font-size: 0.9rem;
    color: #64748b;
    margin-bottom: 20px;
    line-height: 1.5;
}

/* 按钮区域固定在底部 */
.card-btn-area {
    margin-top: auto;
}

/* --- Star Models 图片容器固定高度 --- */
#featured .position-relative {
    height: 200px;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
}

#featured .position-relative img {
    max-height: 200px;
    max-width: 100%;
    object-fit: contain;
}

/* --- 悬浮按钮 --- */
.whatsapp-float {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 60px;
    height: 60px;
    background-color: #25d366;
    color: #ffffff;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 30px;
    z-index: 1000;
    text-decoration: none;
}

.bg-gray {
    background-color: var(--bg-gray);
}

.page-header-section {
    padding: 120px 0 60px;
    background: linear-gradient(to right, #0f172a, #1e293b);
    color: #ffffff;
}

.page-kicker {
    text-transform: uppercase;
    letter-spacing: 0.08em;
    font-size: 0.8rem;
    opacity: 0.8;
    margin-bottom: 0.5rem;
}

.page-title {
    font-weight: 800;
    margin-bottom: 0.5rem;
}

.page-subtitle {
    margin-bottom: 0;
    opacity: 0.9;
}

.category-list .category-item:not(:last-child)::after {
    content: " · ";
    margin: 0 4px;
}

.section-title {
    font-weight: 700;
    color: var(--primary);
}

.about-highlight-box {
    background-color: #ffffff;
    border: 1px solid var(--border-c);
    border-radius: 12px;
    padding: 24px;
}

.about-stat-card {
    background-color: var(--bg-gray);
    border-radius: 10px;
    padding: 18px 16px;
}

.about-stat-card h3 {
    font-weight: 800;
    color: var(--primary);
    margin-bottom: 4px;
}

.about-stat-card h3 small {
    font-size: 0.7em;
    font-weight: 400;
}

.about-stat-card p {
    font-size: 0.85rem;
    margin-bottom: 0;
}

.about-timeline {
    border-left: 2px solid var(--border-c);
    padding-left: 24px;
}

.about-timeline .timeline-item {
    position: relative;
    padding-bottom: 20px;
    margin-bottom: 12px;
}

.about-timeline .timeline-item:last-child {
    padding-bottom: 0;
    margin-bottom: 0;
}

.about-timeline .timeline-item::before {
    content: "";
    position: absolute;
    left: -27px;
    top: 4px;
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background-color: var(--accent);
}

.about-timeline .timeline-year {
    font-weight: 700;
    color: var(--primary);
    margin-bottom: 4px;
}

.about-timeline .timeline-content h5 {
    margin-bottom: 4px;
}

.advantage-card {
    background-color: #ffffff;
    border-radius: 12px;
    border: 1px solid var(--border-c);
    padding: 24px 20px;
    height: 100%;
}

.advantage-card h5 {
    font-weight: 700;
    margin-bottom: 10px;
}

.advantage-card p {
    font-size: 0.9rem;
    margin-bottom: 0;
}

.adv-icon {
    width: 40px;
    height: 40px;
    border-radius: 999px;
    display: flex;
    align-items: center;
    justify-content: center;
    background-color: rgba(37, 99, 235, 0.08);
    color: var(--accent);
    margin-bottom: 12px;
    font-size: 1.1rem;
}

.product-card-link {
    text-decoration: none;
    color: inherit;
    display: block;
    height: 100%;
}

.product-card {
    height: 100%;
}

.product-media-main {
    max-height: 300px;
    max-width: 600px;
    overflow: hidden;
    border-radius: 8px;
    background-color: #f8f9fa;
}

.product-media-main img,
.product-media-main video {
    width: 600px;
    height: 300px;
    object-fit: contain;
    background-color: #f8f9fa;
}

.product-media-thumbs img {
    height: 100px;
    object-fit: cover;
    cursor: pointer;
    transition: box-shadow 0.2s ease, transform 0.2s ease;
}

.product-media-thumbs img.media-thumb-active {
    box-shadow: 0 0 0 2px var(--accent);
    transform: translateY(-2px);
}

.product-video-block h4 {
    color: var(--primary);
}

.product-info-box {
    background-color: #ffffff;
    border-radius: 12px;
    border: 1px solid var(--border-c);
    padding: 24px 22px;
}

.product-params li {
    margin-bottom: 4px;
}

.product-detail-text {
    background-color: #ffffff;
    border-radius: 12px;
    border: 1px solid var(--border-c);
    padding: 24px;
}

.product-detail-side-box {
    background-color: var(--bg-gray);
    border-radius: 12px;
    padding: 20px 18px;
}

.video-wrapper {
    position: relative;
    width: 100%;
}

.video-wrapper video {
    width: 100%;
    border-radius: 8px;
}

.product-filter .btn {
    transition: all 0.3s ease;
}

.product-item {
    transition: opacity 0.3s ease;
}

@media (max-width: 767.98px) {
    .page-header-section {
        padding: 90px 0 40px;
    }
}


/* ==================== 分页样式 Pagination Styles ==================== */
.custom-pagination .page-link {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 2.5rem;
    height: 2.5rem;
    padding: 0 0.5rem;
    border: none;
    background: transparent;
    color: #6c757d;
    text-decoration: none;
    border-radius: 0.375rem;
    transition: all 0.2s ease;
    font-size: 0.875rem;
}

.custom-pagination .page-link:hover {
    background-color: #e9ecef;
    color: #0d6efd;
}

.custom-pagination .page-link.active {
    background-color: #0d6efd;
    color: white;
    font-weight: 600;
}


/* 强制导航栏按钮为蓝色 - 最高优先级 */
nav#mainNav a.btn-primary.fw-bold,
.navbar#mainNav a.btn-primary,
#mainNav a[href*="msglink"].btn-primary {
    background-color: #007bff !important;
    border-color: #007bff !important;
    color: #ffffff !important;
}

nav#mainNav a.btn-primary.fw-bold:hover,
.navbar#mainNav a.btn-primary:hover,
#mainNav a[href*="msglink"].btn-primary:hover {
    background-color: #0056b3 !important;
    border-color: #0056b3 !important;
}