/* 全局样式 */
:root {
    --dark-bg: #1A1A1A;
    --darker-bg: #121212;
    --card-bg: #222222;
    --text-white: #F5F5F5;
    --text-light: #999999;
    --gold: #D4AF37;
    --transition: all 0.3s ease;
}

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

body {
    font-family: 'Montserrat', sans-serif;
    background-color: var(--dark-bg);
    color: var(--text-white);
    line-height: 1.6;
}

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

/* 导航 */
.navbar {
    position: fixed;
    top: 0;
    width: 100%;
    background-color: rgba(26, 26, 26, 0.9);
    z-index: 1000;
    transition: var(--transition);
}

.navbar:hover {
    background-color: rgba(26, 26, 26, 1);
}

.navbar .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px;
}

.logo h1 {
    font-size: 24px;
    font-weight: 700;
    color: var(--gold);
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 40px;
}

.nav-menu a {
    color: var(--text-white);
    text-decoration: none;
    font-weight: 600;
    position: relative;
    transition: var(--transition);
}

.nav-menu a:hover,
.nav-menu a.active {
    color: var(--gold);
}

.nav-menu a::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 2px;
    background-color: var(--gold);
    transition: var(--transition);
}

.nav-menu a:hover::after,
.nav-menu a.active::after {
    width: 100%;
}

.nav-extra {
    display: flex;
    align-items: center;
    gap: 20px;
}

.language-switch a {
    color: var(--text-white);
    text-decoration: none;
    font-weight: 600;
}

.language-switch a.active {
    color: var(--gold);
}

.search-icon {
    color: var(--text-white);
    cursor: pointer;
    font-size: 18px;
}

.hamburger {
    display: none;
    flex-direction: column;
    gap: 5px;
    cursor: pointer;
}

.hamburger span {
    width: 25px;
    height: 2px;
    background-color: var(--text-white);
    transition: var(--transition);
}

/* 英雄区域 */
.hero {
    height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    background-image: url('images/background.jpg');
    background-size: cover;
    background-position: center;
    text-align: center;
}

.hero::before {
    content: '';
    position: absolute;
    inset: 0;
    background: rgba(26, 26, 26, 0.65);
}

.hero-content {
    position: relative;
    z-index: 1;
}

.hero-content {
    max-width: 800px;
}

.hero-title {
    font-size: 48px;
    font-weight: 700;
    margin-bottom: 20px;
    color: var(--gold);
}

.hero-subtitle {
    font-size: 24px;
    margin-bottom: 40px;
    color: var(--text-white);
}

.cta-button {
    padding: 15px 40px;
    font-size: 16px;
    font-weight: 600;
    color: var(--gold);
    background: transparent;
    border: 2px solid var(--gold);
    border-radius: 3px;
    cursor: pointer;
    transition: var(--transition);
}

.cta-button:hover {
    background-color: var(--gold);
    color: var(--dark-bg);
}

/* 优势区域 */
.advantages {
    padding: 80px 0;
}

.advantages-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 40px;
}

.advantage-card {
    text-align: center;
}

.advantage-card i {
    font-size: 48px;
    color: var(--gold);
    margin-bottom: 20px;
}

.advantage-card h3 {
    font-size: 20px;
    margin-bottom: 15px;
    color: var(--text-white);
}

.advantage-card p {
    color: var(--text-light);
}

/* 产品区域 */
.products {
    padding: 80px 0;
}

.section-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 40px;
}

.section-header h2 {
    font-size: 32px;
    font-weight: 700;
    position: relative;
    color: var(--text-white);
}

.section-header h2::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 0;
    width: 80px;
    height: 3px;
    background-color: var(--gold);
}

.view-all {
    color: var(--text-white);
    text-decoration: none;
    font-weight: 600;
    transition: var(--transition);
}

.view-all:hover {
    color: var(--gold);
}

.products-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 30px;
}

.product-card {
    background-color: var(--card-bg);
    border-radius: 5px;
    overflow: hidden;
    transition: var(--transition);
    cursor: pointer;
}

.product-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.5);
}

.product-image img {
    width: 100%;
    height: 200px;
    object-fit: cover;
}

.product-info {
    padding: 20px;
}

.product-info h4 {
    font-size: 18px;
    margin-bottom: 10px;
    color: var(--text-white);
}

.product-info p {
    color: var(--text-light);
    font-size: 14px;
}

/* 品牌区域 */
.brand {
    padding: 100px 0;
    background-color: var(--darker-bg);
    border-top: 1px solid rgba(255,255,255,0.08);
}

.brand-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 40px;
    align-items: center;
}

.brand-text h2 {
    font-size: 32px;
    margin-bottom: 20px;
    color: var(--gold);
}

.brand-text p {
    color: var(--text-light);
    line-height: 1.8;
}

.brand-text .why-list {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 14px 24px;
    margin-top: 8px;
    list-style: none;
    padding: 0;
}

.brand-text .why-list li {
    color: var(--text-white);
    font-size: 16px;
    line-height: 1.7;
}

@media (max-width: 768px) {
    .brand-text .why-list {
        grid-template-columns: 1fr;
    }
}

.brand-image img {
    width: 100%;
    border-radius: 5px;
}

.about-hero {
    padding: 120px 0 60px;
    background-color: var(--darker-bg);
}

.about-header {
    text-align: center;
}

.about-header .subtitle {
    color: var(--gold);
    font-size: 16px;
    font-weight: 600;
    margin-bottom: 10px;
    text-transform: uppercase;
}

.about-header h1 {
    font-size: 48px;
    margin-bottom: 20px;
    color: var(--text-white);
}

.about-header .divider {
    width: 80px;
    height: 3px;
    background-color: var(--gold);
    margin: 0 auto;
}

.company-story {
    padding: 60px 0;
}

.story-content {
    display: grid;
    grid-template-columns: 0.9fr 1.1fr;
    gap: 32px;
    align-items: start;
}

.story-image {
    position: relative;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 16px;
}

.story-image img {
    width: 100%;
    max-width: 520px;
    height: auto;
    border-radius: 10px;
    box-shadow: 0 12px 32px rgba(0, 0, 0, 0.35);
    transition: transform 0.4s ease, box-shadow 0.4s ease, filter 0.4s ease;
}

.story-image:hover img {
    transform: translateY(-3px) scale(1.01);
    box-shadow: 0 18px 42px rgba(0, 0, 0, 0.45);
    filter: brightness(1.03);
}

.story-text h2 {
    font-size: 28px;
    margin-bottom: 16px;
    color: var(--gold);
}

.story-text p {
    color: var(--text-light);
    margin-bottom: 14px;
    line-height: 1.8;
}

/* 页脚 */
.footer {
    background-color: var(--darker-bg);
    padding: 60px 0 20px;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 40px;
    margin-bottom: 40px;
}

.footer-section h3 {
    font-size: 24px;
    margin-bottom: 20px;
    color: var(--gold);
}

.footer-section h4 {
    font-size: 18px;
    margin-bottom: 20px;
    color: var(--text-white);
}

.footer-section p {
    color: var(--text-light);
    margin-bottom: 10px;
}

.footer-section ul {
    list-style: none;
}

.footer-section ul li {
    margin-bottom: 10px;
}

.footer-section ul li a {
    color: var(--text-light);
    text-decoration: none;
    transition: var(--transition);
}

.footer-section ul li a:hover {
    color: var(--gold);
}

.footer-bottom {
    text-align: center;
    padding-top: 20px;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    color: var(--text-light);
}

/* 响应式设计 */
@media (max-width: 1024px) {
    .nav-menu {
        gap: 20px;
    }

    .products-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

@media (max-width: 768px) {
    .hamburger {
        display: flex;
    }

    .nav-menu {
        position: absolute;
        top: 80px;
        left: -100%;
        flex-direction: column;
        background-color: var(--dark-bg);
        width: 100%;
        padding: 20px;
        transition: var(--transition);
    }

    .nav-menu.active {
        left: 0;
    }

    .hero-title {
        font-size: 36px;
    }

    .hero-subtitle {
        font-size: 18px;
    }

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

    .products-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .brand-content {
        grid-template-columns: 1fr;
    }

    .footer-content {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 768px) {
    .story-content {
        grid-template-columns: 1fr;
        gap: 24px;
    }
}

@media (max-width: 480px) {
    .products-grid {
        grid-template-columns: 1fr;
    }

    .hero-title {
        font-size: 28px;
    }

    .cta-button {
        padding: 12px 30px;
        font-size: 14px;
    }
}

/* 动画效果 */
.fade-in {
    animation: fadeIn 1s ease-in forwards;
}

@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

.slide-up {
    animation: slideUp 0.8s ease-out forwards;
}

@keyframes slideUp {
    from { transform: translateY(30px); opacity: 0; }
    to { transform: translateY(0); opacity: 1; }
}

/* Contact form rounded inputs and button */
.contact-form input,
.contact-form textarea {
    border-radius: 8px;
}
.submit-button {
    display: inline-block;
    padding: 12px 24px;
    border: none;
    border-radius: 10px;
    background: linear-gradient(135deg, #e0c269, var(--gold));
    color: #121212;
    font-weight: 700;
    letter-spacing: 0.5px;
    cursor: pointer;
    transition: var(--transition);
    box-shadow: 0 6px 16px rgba(212, 175, 55, 0.25);
}
.submit-button:hover {
    transform: translateY(-1px);
    box-shadow: 0 10px 22px rgba(212, 175, 55, 0.35);
    filter: brightness(1.03);
}
.submit-button:active {
    transform: translateY(0);
    box-shadow: 0 6px 16px rgba(212, 175, 55, 0.25);
}
.submit-button:focus {
    outline: 2px solid rgba(212, 175, 55, 0.6);
    outline-offset: 2px;
}

/* Admin table styles */
.admin-table {
    width: 100%;
    border-collapse: collapse;
}
.admin-table th,
.admin-table td {
    padding: 12px 16px;
    border-bottom: 1px solid rgba(255,255,255,0.1);
}
.admin-table th {
    font-weight: 700;
    color: var(--text-white);
    background-color: var(--darker-bg);
}
.admin-table tr:nth-child(odd) {
    background-color: rgba(255,255,255,0.03);
}
.admin-table tr:hover {
    background-color: rgba(255,255,255,0.08);
}