/* ============================================
   拜康环保科技 - 全局样式表
   ============================================ */

/* CSS Variables */
:root {
    --bg-primary: #0a0a0a;
    --bg-secondary: #111111;
    --bg-card: #161616;
    --bg-light: #1c1c1c;
    --text-primary: #f5f0e8;
    --text-secondary: #a89f91;
    --text-muted: #6b6258;
    --accent-gold: #c9a96e;
    --accent-gold-light: #e0c99d;
    --accent-copper: #b87333;
    --accent-blue: #5a8fc7;
    --border: rgba(201, 169, 110, 0.15);
    --border-light: rgba(201, 169, 110, 0.08);
    --glass: rgba(17, 17, 17, 0.9);
    --gradient-gold: linear-gradient(135deg, #c9a96e 0%, #b87333 100%);
    --gradient-dark: linear-gradient(180deg, #161616 0%, #0a0a0a 100%);
}

/* Reset & Base */
* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    background: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.6;
    overflow-x: hidden;
}
h1, h2, h3, h4, .serif { font-family: 'Noto Serif SC', serif; }

/* Scrollbar */
::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: var(--bg-primary); }
::-webkit-scrollbar-thumb { background: var(--accent-gold); border-radius: 3px; }

/* ============================================
   Navigation
   ============================================ */
nav {
    position: fixed;
    top: 0;
    width: 100%;
    z-index: 1000;
    padding: 1.2rem 4%;
    display: flex;
    justify-content: space-between;
    align-items: center;
    transition: all 0.4s ease;
    background: transparent;
}
nav.scrolled {
    background: var(--glass);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--border);
    padding: 0.8rem 4%;
}
.logo {
    font-family: 'Noto Serif SC', serif;
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--accent-gold);
    letter-spacing: 2px;
    text-decoration: none;
}
.logo img { max-height: 40px; vertical-align: middle; }
.nav-links {
    display: flex;
    gap: 2.5rem;
    list-style: none;
}
.nav-links a {
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 0.9rem;
    font-weight: 400;
    letter-spacing: 1px;
    transition: color 0.3s;
    position: relative;
}
.nav-links a::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 1px;
    background: var(--accent-gold);
    transition: width 0.3s;
}
.nav-links a:hover { color: var(--accent-gold); }
.nav-links a:hover::after { width: 100%; }
.nav-links a.active { color: var(--accent-gold); }
.nav-links a.active::after { width: 100%; }
.nav-cta {
    padding: 0.6rem 1.8rem;
    border: 1px solid var(--accent-gold);
    color: var(--accent-gold);
    background: transparent;
    font-size: 0.85rem;
    letter-spacing: 1px;
    cursor: pointer;
    transition: all 0.3s;
    text-decoration: none;
}
.nav-cta:hover {
    background: var(--accent-gold);
    color: var(--bg-primary);
}
.menu-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    cursor: pointer;
    z-index: 1001;
}
.menu-toggle span {
    width: 25px;
    height: 1px;
    background: var(--accent-gold);
    transition: all 0.3s;
}

/* ============================================
   Buttons
   ============================================ */
.btn-primary {
    padding: 1rem 2.5rem;
    background: var(--gradient-gold);
    color: var(--bg-primary);
    font-weight: 600;
    font-size: 0.95rem;
    letter-spacing: 1px;
    border: none;
    cursor: pointer;
    transition: transform 0.3s, box-shadow 0.3s;
    text-decoration: none;
    display: inline-block;
}
.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 30px rgba(201, 169, 110, 0.3);
}
.btn-secondary {
    padding: 1rem 2.5rem;
    border: 1px solid var(--border);
    color: var(--text-secondary);
    background: transparent;
    font-size: 0.95rem;
    letter-spacing: 1px;
    cursor: pointer;
    transition: all 0.3s;
    text-decoration: none;
    display: inline-block;
}
.btn-secondary:hover {
    border-color: var(--accent-gold);
    color: var(--accent-gold);
}
.btn-outline-gold {
    padding: 0.6rem 1.5rem;
    border: 1px solid var(--accent-gold);
    color: var(--accent-gold);
    background: transparent;
    font-size: 0.85rem;
    cursor: pointer;
    transition: all 0.3s;
    text-decoration: none;
    display: inline-block;
}
.btn-outline-gold:hover {
    background: var(--accent-gold);
    color: var(--bg-primary);
}

/* ============================================
   Section Common
   ============================================ */
section { padding: 6rem 4%; position: relative; }
.section-header {
    text-align: center;
    margin-bottom: 4rem;
}
.section-label {
    color: var(--accent-gold);
    font-size: 0.85rem;
    letter-spacing: 3px;
    text-transform: uppercase;
    margin-bottom: 1rem;
    display: block;
}
.section-title {
    font-size: clamp(2rem, 4vw, 3rem);
    font-weight: 700;
    margin-bottom: 1rem;
    color: var(--text-primary);
}
.section-desc {
    color: var(--text-secondary);
    max-width: 700px;
    margin: 0 auto;
    font-size: 1.05rem;
}

/* ============================================
   Scroll Reveal
   ============================================ */
.reveal {
    opacity: 0;
    transform: translateY(40px);
    transition: all 0.8s ease;
}
.reveal.active {
    opacity: 1;
    transform: translateY(0);
}

/* ============================================
   Breadcrumb
   ============================================ */
.breadcrumb {
    padding: 8rem 4% 2rem;
    background: var(--bg-secondary);
    border-bottom: 1px solid var(--border);
}
.breadcrumb-inner {
    max-width: 1200px;
    margin: 0 auto;
    color: var(--text-secondary);
    font-size: 0.9rem;
}
.breadcrumb-inner a {
    color: var(--text-secondary);
    text-decoration: none;
    transition: color 0.3s;
}
.breadcrumb-inner a:hover { color: var(--accent-gold); }
.breadcrumb-inner span { color: var(--accent-gold); margin: 0 0.5rem; }

/* ============================================
   Pagination
   ============================================ */
.pagination {
    display: flex;
    justify-content: center;
    gap: 0.5rem;
    margin-top: 3rem;
}
.pagination a, .pagination span {
    padding: 0.5rem 1rem;
    border: 1px solid var(--border);
    color: var(--text-secondary);
    text-decoration: none;
    transition: all 0.3s;
}
.pagination a:hover, .pagination span.current {
    border-color: var(--accent-gold);
    color: var(--accent-gold);
    background: rgba(201, 169, 110, 0.1);
}

/* ============================================
   Tags
   ============================================ */
.tag {
    display: inline-block;
    padding: 0.25rem 0.7rem;
    border: 1px solid var(--border);
    color: var(--accent-gold);
    font-size: 0.75rem;
    letter-spacing: 1px;
    margin-right: 0.5rem;
    margin-bottom: 0.5rem;
}
.tag-cert {
    display: inline-flex;
    align-items: center;
    gap: 0.3rem;
    padding: 0.3rem 0.8rem;
    background: var(--bg-light);
    border: 1px solid var(--border-light);
    color: var(--text-secondary);
    font-size: 0.8rem;
}
.tag-cert::before {
    content: '✓';
    color: var(--accent-gold);
}

/* ============================================
   Hero Section
   ============================================ */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    overflow: hidden;
    background: radial-gradient(ellipse at 30% 50%, rgba(201,169,110,0.08) 0%, transparent 60%),
                radial-gradient(ellipse at 70% 80%, rgba(184,115,51,0.05) 0%, transparent 50%),
                var(--bg-primary);
}
.hero-content {
    text-align: center;
    z-index: 2;
    padding: 0 2rem;
    max-width: 900px;
}
.hero-badge {
    display: inline-block;
    padding: 0.4rem 1.2rem;
    border: 1px solid var(--border);
    color: var(--accent-gold);
    font-size: 0.8rem;
    letter-spacing: 3px;
    text-transform: uppercase;
    margin-bottom: 2rem;
    animation: fadeInUp 1s ease;
}
.hero h1 {
    font-size: clamp(2.5rem, 6vw, 5rem);
    font-weight: 700;
    line-height: 1.1;
    margin-bottom: 1.5rem;
    background: linear-gradient(135deg, var(--text-primary) 0%, var(--accent-gold-light) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    animation: fadeInUp 1s ease 0.2s both;
}
.hero-subtitle {
    font-size: clamp(1rem, 2vw, 1.3rem);
    color: var(--text-secondary);
    font-weight: 300;
    margin-bottom: 3rem;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
    animation: fadeInUp 1s ease 0.4s both;
}
.hero-cta-group {
    display: flex;
    gap: 1.2rem;
    justify-content: center;
    flex-wrap: wrap;
    animation: fadeInUp 1s ease 0.6s both;
}

/* Particles */
.particles {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    overflow: hidden;
    z-index: 1;
    pointer-events: none;
}
.particle {
    position: absolute;
    width: 2px;
    height: 2px;
    background: var(--accent-gold);
    border-radius: 50%;
    opacity: 0.3;
    animation: float 15s infinite;
}
@keyframes float {
    0%, 100% { transform: translateY(100vh) rotate(0deg); opacity: 0; }
    10% { opacity: 0.3; }
    90% { opacity: 0.3; }
    100% { transform: translateY(-10vh) rotate(720deg); opacity: 0; }
}
@keyframes fadeInUp {
    from { opacity: 0; transform: translateY(30px); }
    to { opacity: 1; transform: translateY(0); }
}

/* ============================================
   Stats Banner
   ============================================ */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 2rem;
    max-width: 1000px;
    margin: 0 auto;
    text-align: center;
}
.stat-item .stat-num {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--accent-gold);
    font-family: 'Inter', sans-serif;
}
.stat-item .stat-label {
    color: var(--text-secondary);
    font-size: 0.9rem;
    margin-top: 0.3rem;
}

/* ============================================
   Product Cards (Homepage)
   ============================================ */
.products-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(350px, 1fr));
    gap: 2rem;
    max-width: 1200px;
    margin: 0 auto;
}
.product-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    overflow: hidden;
    transition: all 0.4s ease;
    position: relative;
}
.product-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 2px;
    background: linear-gradient(90deg, transparent, var(--accent-gold), transparent);
    transform: translateX(-100%);
    transition: transform 0.6s;
}
.product-card:hover {
    border-color: rgba(201, 169, 110, 0.4);
    transform: translateY(-5px);
}
.product-card:hover::before {
    transform: translateX(100%);
}
.product-img-wrap {
    position: relative;
    width: 100%;
    height: 380px;
    overflow: hidden;
    background: var(--bg-secondary);
    display: flex;
    align-items: center;
    justify-content: center;
}
.product-img-wrap img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.6s;
}
.product-card:hover .product-img-wrap img {
    transform: scale(1.05);
}
.product-img-placeholder {
    color: var(--accent-gold);
    font-size: 3rem;
}
.product-body {
    padding: 1.8rem;
}
.product-model {
    color: var(--text-muted);
    font-size: 0.75rem;
    letter-spacing: 2px;
    text-transform: uppercase;
    margin-bottom: 0.3rem;
}
.product-body h3 {
    font-size: 1.3rem;
    margin-bottom: 0.5rem;
    color: var(--text-primary);
    font-family: 'Noto Serif SC', serif;
}
.product-name-en {
    color: var(--text-muted);
    font-size: 0.85rem;
    margin-bottom: 1rem;
    font-style: italic;
}
.product-body p {
    color: var(--text-secondary);
    font-size: 0.9rem;
    line-height: 1.7;
    margin-bottom: 1rem;
}
.product-specs-mini {
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
    margin-bottom: 1rem;
}
.product-specs-mini span {
    font-size: 0.8rem;
    color: var(--text-muted);
}
.product-specs-mini span strong {
    color: var(--accent-gold);
    font-weight: 500;
}
.product-certs {
    display: flex;
    gap: 0.5rem;
    flex-wrap: wrap;
}
.product-footer {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-top: 1.2rem;
    padding-top: 1rem;
    border-top: 1px solid var(--border-light);
}

/* ============================================
   Tech Cards
   ============================================ */
.tech-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    max-width: 1200px;
    margin: 0 auto;
}
.tech-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    padding: 2.5rem;
    transition: all 0.4s ease;
    position: relative;
    overflow: hidden;
}
.tech-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 2px;
    background: linear-gradient(90deg, transparent, var(--accent-gold), transparent);
    transform: translateX(-100%);
    transition: transform 0.6s;
}
.tech-card:hover {
    border-color: rgba(201, 169, 110, 0.4);
    transform: translateY(-5px);
}
.tech-card:hover::before {
    transform: translateX(100%);
}
.tech-icon {
    width: 50px;
    height: 50px;
    border: 1px solid var(--accent-gold);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 1.5rem;
    color: var(--accent-gold);
    font-size: 1.2rem;
}
.tech-card h3 {
    font-size: 1.3rem;
    margin-bottom: 0.8rem;
    color: var(--text-primary);
    font-family: 'Noto Serif SC', serif;
}
.tech-card p {
    color: var(--text-secondary);
    font-size: 0.95rem;
    line-height: 1.7;
}

/* ============================================
   About Section
   ============================================ */
.about-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
    max-width: 1200px;
    margin: 0 auto;
}
.about-visual {
    position: relative;
    height: 450px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: radial-gradient(circle, rgba(201,169,110,0.08) 0%, transparent 70%);
    border-radius: 8px;
    border: 1px solid var(--border);
}
.about-visual-inner {
    text-align: center;
    color: var(--accent-gold);
}
.about-visual-inner .big-text {
    font-size: 4rem;
    font-weight: 700;
    font-family: 'Noto Serif SC', serif;
    line-height: 1;
    margin-bottom: 0.5rem;
}
.about-visual-inner .sub-text {
    font-size: 1rem;
    letter-spacing: 4px;
    color: var(--text-secondary);
}
.about-info h3 {
    font-size: 1.8rem;
    margin-bottom: 1.5rem;
    color: var(--text-primary);
    font-family: 'Noto Serif SC', serif;
}
.about-info p {
    color: var(--text-secondary);
    margin-bottom: 1.2rem;
    line-height: 1.9;
    font-size: 1.05rem;
}
.about-quote {
    font-family: 'Noto Serif SC', serif;
    font-size: 1.3rem;
    color: var(--accent-gold);
    font-style: italic;
    margin: 2rem 0;
    padding-left: 1.5rem;
    border-left: 2px solid var(--accent-gold);
}

/* ============================================
   Cooperation Cards
   ============================================ */
.coop-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
    max-width: 1000px;
    margin: 0 auto;
}
.coop-card {
    text-align: center;
    padding: 3rem 2rem;
    border: 1px solid var(--border);
    background: var(--bg-card);
    transition: all 0.4s ease;
}
.coop-card:hover {
    border-color: var(--accent-gold);
    transform: translateY(-5px);
}
.coop-card .coop-icon {
    font-size: 2.5rem;
    margin-bottom: 1.5rem;
    color: var(--accent-gold);
}
.coop-card h3 {
    font-size: 1.3rem;
    margin-bottom: 1rem;
    color: var(--text-primary);
    font-family: 'Noto Serif SC', serif;
}
.coop-card p {
    color: var(--text-secondary);
    font-size: 0.95rem;
    line-height: 1.7;
}

/* ============================================
   Contact Section
   ============================================ */
.contact-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
    max-width: 900px;
    margin: 3rem auto 0;
}
.contact-item {
    padding: 1.5rem;
    border: 1px solid var(--border);
    transition: all 0.3s;
}
.contact-item:hover {
    border-color: var(--accent-gold);
}
.contact-item .contact-label {
    color: var(--accent-gold);
    font-size: 0.8rem;
    letter-spacing: 2px;
    margin-bottom: 0.5rem;
}
.contact-item .contact-value {
    color: var(--text-primary);
    font-size: 1.1rem;
    font-weight: 500;
}
.contact-item a {
    color: inherit;
    text-decoration: none;
    transition: color 0.3s;
}
.contact-item a:hover {
    color: var(--accent-gold);
}

/* ============================================
   Product Detail Page
   ============================================ */
.product-detail-wrapper {
    max-width: 1200px;
    margin: 0 auto;
}
.product-detail-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    margin-bottom: 4rem;
}
.product-gallery {
    position: relative;
}
.product-gallery .main-img {
    width: 100%;
    height: 500px;
    object-fit: cover;
    border-radius: 8px;
    border: 1px solid var(--border);
    background: var(--bg-secondary);
}
.product-gallery .img-badge {
    position: absolute;
    top: 1rem;
    left: 1rem;
    padding: 0.4rem 1rem;
    background: var(--accent-gold);
    color: var(--bg-primary);
    font-size: 0.8rem;
    font-weight: 600;
    letter-spacing: 1px;
}
.product-info-detail h1 {
    font-size: clamp(1.8rem, 3vw, 2.5rem);
    margin-bottom: 0.5rem;
    font-family: 'Noto Serif SC', serif;
    color: var(--text-primary);
}
.product-info-detail .model-tag {
    display: inline-block;
    padding: 0.3rem 0.8rem;
    background: var(--bg-light);
    border: 1px solid var(--border);
    color: var(--accent-gold);
    font-size: 0.8rem;
    letter-spacing: 2px;
    margin-bottom: 1.5rem;
}
.product-info-detail .desc {
    color: var(--text-secondary);
    font-size: 1.05rem;
    line-height: 1.9;
    margin-bottom: 2rem;
}
.feature-list-detail {
    list-style: none;
    margin-bottom: 2rem;
}
.feature-list-detail li {
    padding: 0.7rem 0;
    color: var(--text-secondary);
    display: flex;
    align-items: flex-start;
    gap: 0.8rem;
    border-bottom: 1px solid var(--border-light);
}
.feature-list-detail li::before {
    content: '◆';
    color: var(--accent-gold);
    font-size: 0.6rem;
    margin-top: 0.4rem;
    flex-shrink: 0;
}
.specs-highlight {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1rem;
    margin-bottom: 2rem;
}
.spec-highlight-item {
    text-align: center;
    padding: 1.2rem;
    background: var(--bg-light);
    border: 1px solid var(--border);
}
.spec-highlight-item .spec-val {
    font-size: 1.4rem;
    font-weight: 700;
    color: var(--accent-gold);
    font-family: 'Inter', sans-serif;
}
.spec-highlight-item .spec-lbl {
    font-size: 0.8rem;
    color: var(--text-muted);
    margin-top: 0.3rem;
}
.product-certs-detail {
    display: flex;
    gap: 0.5rem;
    flex-wrap: wrap;
    margin-bottom: 2rem;
}
.product-actions {
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
}

/* Specs Table */
.specs-table-section {
    background: var(--bg-secondary);
    padding: 4rem 4%;
    margin: 0 -4%;
}
.specs-table {
    max-width: 900px;
    margin: 0 auto;
    border-collapse: collapse;
    width: 100%;
}
.specs-table tr {
    border-bottom: 1px solid var(--border);
}
.specs-table tr:last-child {
    border-bottom: none;
}
.specs-table td {
    padding: 1.2rem 1.5rem;
    color: var(--text-secondary);
    font-size: 0.95rem;
}
.specs-table td:first-child {
    width: 40%;
    color: var(--text-muted);
    font-weight: 500;
    background: var(--bg-card);
}
.specs-table td:last-child {
    color: var(--text-primary);
}

/* Content Body Detail */
.content-body-detail {
    max-width: 900px;
    margin: 3rem auto 0;
    color: var(--text-secondary);
    font-size: 1.05rem;
    line-height: 2;
}
.content-body-detail p { margin-bottom: 1.5rem; }
.content-body-detail h2, .content-body-detail h3 {
    color: var(--text-primary);
    font-family: 'Noto Serif SC', serif;
    margin: 2rem 0 1rem;
}
.content-body-detail img {
    max-width: 100%;
    border-radius: 8px;
    margin: 1.5rem 0;
    border: 1px solid var(--border);
}

/* Content Nav */
.content-nav {
    display: flex;
    justify-content: space-between;
    margin-top: 4rem;
    padding-top: 2rem;
    border-top: 1px solid var(--border);
    flex-wrap: wrap;
    gap: 1rem;
}
.content-nav a {
    color: var(--text-secondary);
    text-decoration: none;
    transition: color 0.3s;
    max-width: 45%;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}
.content-nav a:hover { color: var(--accent-gold); }
.content-nav .nav-label {
    display: block;
    font-size: 0.8rem;
    color: var(--accent-gold);
    margin-bottom: 0.3rem;
}

/* ============================================
   List Page
   ============================================ */
.list-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(350px, 1fr));
    gap: 2rem;
    max-width: 1200px;
    margin: 0 auto;
}
.list-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    overflow: hidden;
    transition: all 0.4s ease;
}
.list-card:hover {
    border-color: rgba(201, 169, 110, 0.4);
    transform: translateY(-5px);
}
.list-card-img-wrap {
    width: 100%;
    height: 260px;
    overflow: hidden;
    background: var(--bg-secondary);
    position: relative;
}
.list-card-img-wrap img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s;
}
.list-card:hover .list-card-img-wrap img {
    transform: scale(1.05);
}
.list-card-img-placeholder {
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--accent-gold);
    font-size: 3rem;
}
.list-card-body {
    padding: 1.8rem;
}
.list-card-body .model-tag {
    color: var(--text-muted);
    font-size: 0.75rem;
    letter-spacing: 2px;
    text-transform: uppercase;
    margin-bottom: 0.3rem;
}
.list-card-body h3 {
    font-size: 1.2rem;
    margin-bottom: 0.3rem;
    color: var(--text-primary);
    font-family: 'Noto Serif SC', serif;
}
.list-card-body .name-en {
    color: var(--text-muted);
    font-size: 0.85rem;
    font-style: italic;
    margin-bottom: 0.8rem;
}
.list-card-body p {
    color: var(--text-secondary);
    font-size: 0.9rem;
    line-height: 1.7;
    margin-bottom: 1rem;
}
.list-card-meta {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-top: 1rem;
    border-top: 1px solid var(--border-light);
}
.page-title {
    text-align: center;
    margin-bottom: 3rem;
}
.page-title h1 {
    font-size: clamp(1.8rem, 3vw, 2.5rem);
    margin-bottom: 0.5rem;
    font-family: 'Noto Serif SC', serif;
}
.page-title p {
    color: var(--text-secondary);
}

/* ============================================
   About Page
   ============================================ */
.about-wrapper {
    max-width: 900px;
    margin: 0 auto;
}
.about-header {
    text-align: center;
    margin-bottom: 3rem;
}
.about-header h1 {
    font-size: clamp(1.8rem, 3vw, 2.5rem);
    margin-bottom: 1rem;
    font-family: 'Noto Serif SC', serif;
}
.about-header p {
    color: var(--text-secondary);
    font-size: 1.1rem;
}
.about-body {
    color: var(--text-secondary);
    font-size: 1.05rem;
    line-height: 2;
}
.about-body p { margin-bottom: 1.5rem; }
.about-body h2, .about-body h3 {
    color: var(--text-primary);
    font-family: 'Noto Serif SC', serif;
    margin: 2rem 0 1rem;
}
.about-body img {
    max-width: 100%;
    border-radius: 8px;
    margin: 1.5rem 0;
    border: 1px solid var(--border);
}
.contact-info-box {
    background: var(--bg-card);
    border: 1px solid var(--border);
    padding: 2rem;
    margin-top: 2rem;
}
.contact-info-box h3 {
    color: var(--accent-gold);
    font-family: 'Noto Serif SC', serif;
    margin-bottom: 1.5rem;
    font-size: 1.3rem;
}
.contact-row {
    display: flex;
    justify-content: space-between;
    padding: 0.8rem 0;
    border-bottom: 1px solid var(--border);
    flex-wrap: wrap;
    gap: 0.5rem;
}
.contact-row:last-child { border-bottom: none; }
.contact-row .label { color: var(--text-secondary); }
.contact-row .value { color: var(--text-primary); }
.contact-row .value a {
    color: var(--accent-gold);
    text-decoration: none;
    transition: opacity 0.3s;
}
.contact-row .value a:hover { opacity: 0.8; }

/* ============================================
   Search Page
   ============================================ */
.search-header {
    text-align: center;
    margin-bottom: 3rem;
}
.search-header h1 {
    font-size: clamp(1.8rem, 3vw, 2.5rem);
    margin-bottom: 0.5rem;
    font-family: 'Noto Serif SC', serif;
}
.search-header p {
    color: var(--text-secondary);
}
.search-form {
    max-width: 600px;
    margin: 2rem auto;
    display: flex;
    gap: 0;
}
.search-form input {
    flex: 1;
    padding: 1rem 1.5rem;
    background: var(--bg-card);
    border: 1px solid var(--border);
    color: var(--text-primary);
    font-size: 1rem;
    outline: none;
    transition: border-color 0.3s;
}
.search-form input:focus { border-color: var(--accent-gold); }
.search-form button {
    padding: 1rem 2rem;
    background: var(--gradient-gold);
    border: none;
    color: var(--bg-primary);
    font-weight: 600;
    cursor: pointer;
    transition: opacity 0.3s;
}
.search-form button:hover { opacity: 0.9; }
.search-list {
    max-width: 900px;
    margin: 0 auto;
}
.search-item {
    padding: 1.5rem 0;
    border-bottom: 1px solid var(--border);
    transition: all 0.3s;
}
.search-item:hover { border-color: var(--accent-gold); }
.search-item h3 {
    font-size: 1.2rem;
    margin-bottom: 0.5rem;
    font-family: 'Noto Serif SC', serif;
}
.search-item h3 a {
    color: var(--text-primary);
    text-decoration: none;
    transition: color 0.3s;
}
.search-item h3 a:hover { color: var(--accent-gold); }
.search-item p {
    color: var(--text-secondary);
    font-size: 0.95rem;
    line-height: 1.7;
}
.search-item .meta {
    color: var(--accent-gold);
    font-size: 0.85rem;
    margin-top: 0.5rem;
}

/* ============================================
   Footer
   ============================================ */
footer {
    background: var(--bg-primary);
    padding: 4rem 4% 2rem;
    border-top: 1px solid var(--border);
}
.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: 3rem;
    max-width: 1200px;
    margin: 0 auto 3rem;
}
.footer-brand .logo {
    margin-bottom: 1rem;
    display: inline-block;
    font-family: 'Noto Serif SC', serif;
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--accent-gold);
    letter-spacing: 2px;
    text-decoration: none;
}
.footer-brand p {
    color: var(--text-secondary);
    font-size: 0.9rem;
    line-height: 1.7;
}
.footer-col h4 {
    color: var(--text-primary);
    font-size: 0.9rem;
    letter-spacing: 1px;
    margin-bottom: 1.5rem;
    font-weight: 600;
}
.footer-col ul { list-style: none; }
.footer-col li { margin-bottom: 0.8rem; }
.footer-col a {
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 0.9rem;
    transition: color 0.3s;
}
.footer-col a:hover { color: var(--accent-gold); }
.footer-bottom {
    max-width: 1200px;
    margin: 0 auto;
    padding-top: 2rem;
    border-top: 1px solid var(--border);
    display: flex;
    justify-content: space-between;
    align-items: center;
    color: var(--text-secondary);
    font-size: 0.85rem;
    flex-wrap: wrap;
    gap: 1rem;
}
.social-links {
    display: flex;
    gap: 1rem;
}
.social-links a {
    width: 36px;
    height: 36px;
    border: 1px solid var(--border);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-secondary);
    text-decoration: none;
    transition: all 0.3s;
    font-size: 0.8rem;
}
.social-links a:hover {
    border-color: var(--accent-gold);
    color: var(--accent-gold);
}

/* ============================================
   Responsive
   ============================================ */
@media (max-width: 768px) {
    .nav-links, .nav-cta { display: none; }
    .menu-toggle { display: flex; }
    section { padding: 4rem 4%; }

    .stats-grid { grid-template-columns: repeat(2, 1fr); }
    .products-grid { grid-template-columns: 1fr; }
    .product-detail-grid { grid-template-columns: 1fr; gap: 2rem; }
    .product-gallery .main-img { height: 350px; }
    .product-info-detail .specs-highlight { grid-template-columns: repeat(2, 1fr); }
    .specs-table td { padding: 0.8rem; font-size: 0.85rem; }
    .list-grid { grid-template-columns: 1fr; }
    .about-grid { grid-template-columns: 1fr; gap: 2rem; }
    .about-visual { height: 300px; }
    .coop-grid { grid-template-columns: 1fr; }
    .contact-grid { grid-template-columns: 1fr; }
    .footer-grid { grid-template-columns: 1fr; gap: 2rem; }
    .footer-bottom { flex-direction: column; text-align: center; }
}