:root {
    --primary: #1e3a5f;
    --primary-dark: #0f1f33;
    --primary-light: #2a4f7a;
    --accent: #d4a857;
    --accent-light: #e8c77a;
    --accent-dark: #b8923f;
    --text-dark: #1a1a2e;
    --text-body: #4a5568;
    --text-light: #718096;
    --bg-white: #ffffff;
    --bg-light: #f8fafc;
    --bg-gray: #f1f5f9;
    --bg-dark: #0f1f33;
    --border: #e2e8f0;
    --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.1);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
    --shadow-gold: 0 10px 30px rgba(212, 168, 87, 0.3);
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-slow: all 0.6s cubic-bezier(0.4, 0, 0.2, 1);
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Noto Sans SC', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    color: var(--text-dark);
    line-height: 1.6;
    background-color: var(--bg-white);
    overflow-x: hidden;
}

img {
    max-width: 100%;
    height: auto;
    display: block;
}

a {
    text-decoration: none;
    color: inherit;
    transition: var(--transition);
}

ul {
    list-style: none;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 14px 32px;
    font-size: 15px;
    font-weight: 500;
    border-radius: 6px;
    cursor: pointer;
    border: none;
    transition: var(--transition);
    position: relative;
    overflow: hidden;
}

.btn-primary {
    background: linear-gradient(135deg, var(--accent) 0%, var(--accent-dark) 100%);
    color: var(--bg-white);
    box-shadow: var(--shadow-gold);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 15px 40px rgba(212, 168, 87, 0.4);
}

.btn-secondary {
    background: transparent;
    color: var(--bg-white);
    border: 2px solid rgba(255, 255, 255, 0.3);
}

.btn-secondary:hover {
    background: rgba(255, 255, 255, 0.1);
    border-color: var(--accent);
    color: var(--accent);
}

.btn-large {
    padding: 18px 40px;
    font-size: 16px;
}

.btn-full {
    width: 100%;
}

.section-tag {
    display: inline-block;
    font-size: 13px;
    font-weight: 600;
    letter-spacing: 3px;
    color: var(--accent);
    margin-bottom: 16px;
    position: relative;
    padding-left: 40px;
}

.section-tag::before {
    content: '';
    position: absolute;
    left: 0;
    top: 50%;
    transform: translateY(-50%);
    width: 30px;
    height: 2px;
    background: var(--accent);
}

.section-header {
    text-align: center;
    margin-bottom: 60px;
}

.section-title {
    font-size: 42px;
    font-weight: 700;
    color: var(--primary-dark);
    margin-bottom: 16px;
    position: relative;
    display: inline-block;
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: -12px;
    left: 50%;
    transform: translateX(-50%);
    width: 60px;
    height: 3px;
    background: linear-gradient(90deg, var(--accent), var(--accent-light));
    border-radius: 2px;
}

.section-desc {
    font-size: 16px;
    color: var(--text-body);
    max-width: 600px;
    margin: 24px auto 0;
}

.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    padding: 20px 0;
    transition: var(--transition);
    background: transparent;
}

.navbar.scrolled {
    background: rgba(255, 255, 255, 0.98);
    backdrop-filter: blur(20px);
    padding: 12px 0;
    box-shadow: var(--shadow-sm);
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.nav-logo {
    display: flex;
    align-items: center;
    gap: 12px;
}

.logo-icon {
    width: 48px;
    height: 48px;
    background: linear-gradient(135deg, var(--accent) 0%, var(--accent-dark) 100%);
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-family: 'Playfair Display', serif;
    font-size: 20px;
    font-weight: 700;
    color: var(--bg-white);
    box-shadow: var(--shadow-gold);
}

.logo-text {
    display: flex;
    flex-direction: column;
    line-height: 1.2;
}

.logo-cn {
    font-size: 18px;
    font-weight: 700;
    color: var(--bg-white);
    transition: var(--transition);
}

.logo-en {
    font-size: 11px;
    font-weight: 500;
    color: rgba(255, 255, 255, 0.7);
    letter-spacing: 1px;
    transition: var(--transition);
}

.navbar.scrolled .logo-cn {
    color: var(--primary-dark);
}

.navbar.scrolled .logo-en {
    color: var(--text-light);
}

.nav-menu {
    display: flex;
    gap: 40px;
}

.nav-link {
    font-size: 15px;
    font-weight: 500;
    color: rgba(255, 255, 255, 0.9);
    position: relative;
    padding: 8px 0;
}

.navbar.scrolled .nav-link {
    color: var(--text-body);
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--accent);
    transition: var(--transition);
}

.nav-link:hover,
.nav-link.active {
    color: var(--accent);
}

.navbar.scrolled .nav-link:hover,
.navbar.scrolled .nav-link.active {
    color: var(--primary);
}

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

.nav-toggle {
    display: none;
    flex-direction: column;
    gap: 6px;
    cursor: pointer;
    padding: 8px;
}

.nav-toggle span {
    display: block;
    width: 24px;
    height: 2px;
    background: var(--bg-white);
    transition: var(--transition);
    border-radius: 1px;
}

.navbar.scrolled .nav-toggle span {
    background: var(--primary-dark);
}

.nav-toggle.active span:nth-child(1) {
    transform: rotate(45deg) translate(6px, 6px);
}

.nav-toggle.active span:nth-child(2) {
    opacity: 0;
}

.nav-toggle.active span:nth-child(3) {
    transform: rotate(-45deg) translate(6px, -6px);
}

.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
    background: var(--primary-dark);
}

.hero-bg {
    position: absolute;
    inset: 0;
    background: 
        linear-gradient(135deg, rgba(30, 58, 95, 0.95) 0%, rgba(15, 31, 51, 0.98) 100%),
        url('../public/images/img07.jpg') center/cover;
}

.hero-overlay {
    position: absolute;
    inset: 0;
    background: 
        radial-gradient(ellipse at 30% 20%, rgba(212, 168, 87, 0.15) 0%, transparent 50%),
        radial-gradient(ellipse at 70% 80%, rgba(30, 58, 95, 0.5) 0%, transparent 50%);
}

.hero-content {
    position: relative;
    z-index: 2;
    text-align: center;
    padding: 120px 24px 80px;
    max-width: 900px;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 10px 24px;
    background: rgba(212, 168, 87, 0.15);
    border: 1px solid rgba(212, 168, 87, 0.3);
    border-radius: 50px;
    color: var(--accent-light);
    font-size: 14px;
    font-weight: 500;
    margin-bottom: 32px;
}

.badge-dot {
    width: 8px;
    height: 8px;
    background: var(--accent);
    border-radius: 50%;
    animation: pulse 2s infinite;
}

@keyframes pulse {
    0%, 100% { opacity: 1; transform: scale(1); }
    50% { opacity: 0.5; transform: scale(1.2); }
}

.hero-title {
    font-size: 56px;
    font-weight: 900;
    color: var(--bg-white);
    line-height: 1.2;
    margin-bottom: 24px;
}

.title-line {
    display: block;
    opacity: 0;
    transform: translateY(30px);
    animation: slideUp 0.8s forwards;
}

.title-line:nth-child(1) { animation-delay: 0.2s; }
.title-line:nth-child(2) { animation-delay: 0.4s; }

.title-line.highlight {
    background: linear-gradient(135deg, var(--accent-light) 0%, var(--accent) 50%, var(--accent-dark) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

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

.hero-subtitle {
    font-size: 22px;
    color: rgba(255, 255, 255, 0.9);
    margin-bottom: 20px;
    font-weight: 400;
}

.subtitle-en {
    font-size: 14px;
    color: rgba(255, 255, 255, 0.5);
    letter-spacing: 2px;
    font-weight: 300;
}

.hero-desc {
    font-size: 18px;
    color: rgba(255, 255, 255, 0.8);
    margin-bottom: 48px;
    line-height: 1.8;
}

.hero-buttons {
    display: flex;
    gap: 20px;
    justify-content: center;
    flex-wrap: wrap;
}

.hero-scroll {
    position: absolute;
    bottom: 40px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 12px;
    color: rgba(255, 255, 255, 0.5);
    font-size: 12px;
    letter-spacing: 2px;
}

.scroll-line {
    width: 1px;
    height: 40px;
    background: linear-gradient(to bottom, transparent, var(--accent));
    animation: scrollDown 2s infinite;
}

@keyframes scrollDown {
    0% { transform: scaleY(0); transform-origin: top; }
    50% { transform: scaleY(1); transform-origin: top; }
    51% { transform: scaleY(1); transform-origin: bottom; }
    100% { transform: scaleY(0); transform-origin: bottom; }
}

.advantages {
    padding: 120px 0;
    background: var(--bg-light);
    position: relative;
}

.advantages::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--border), transparent);
}

.advantages-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 40px;
    max-width: 1000px;
    margin: 0 auto;
}

.advantage-card {
    background: var(--bg-white);
    border-radius: 16px;
    padding: 50px 40px;
    position: relative;
    transition: var(--transition-slow);
    border: 1px solid var(--border);
    overflow: hidden;
}

.advantage-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, var(--accent), var(--accent-light));
    transform: scaleX(0);
    transform-origin: left;
    transition: var(--transition-slow);
}

.advantage-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-xl);
    border-color: transparent;
}

.advantage-card:hover::before {
    transform: scaleX(1);
}

.card-number {
    position: absolute;
    top: 30px;
    right: 30px;
    font-family: 'Playfair Display', serif;
    font-size: 72px;
    font-weight: 700;
    color: var(--bg-gray);
    line-height: 1;
    transition: var(--transition-slow);
}

.advantage-card:hover .card-number {
    color: rgba(212, 168, 87, 0.1);
    transform: scale(1.1);
}

.card-icon {
    width: 70px;
    height: 70px;
    background: linear-gradient(135deg, rgba(212, 168, 87, 0.15) 0%, rgba(212, 168, 87, 0.05) 100%);
    border-radius: 14px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 28px;
    color: var(--accent);
    transition: var(--transition);
}

.card-icon svg {
    width: 32px;
    height: 32px;
}

.advantage-card:hover .card-icon {
    background: linear-gradient(135deg, var(--accent) 0%, var(--accent-dark) 100%);
    color: var(--bg-white);
    transform: rotate(-5deg) scale(1.05);
}

.card-title {
    font-size: 26px;
    font-weight: 700;
    color: var(--primary-dark);
    margin-bottom: 16px;
}

.card-desc {
    font-size: 15px;
    color: var(--text-body);
    line-height: 1.8;
    margin-bottom: 24px;
}

.card-features {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.card-features li {
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: 14px;
    color: var(--text-body);
}

.feature-dot {
    width: 6px;
    height: 6px;
    background: var(--accent);
    border-radius: 50%;
    flex-shrink: 0;
}

.products {
    padding: 120px 0;
    background: var(--bg-white);
}

.products-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
}

.product-card {
    border-radius: 12px;
    overflow: hidden;
    background: var(--bg-white);
    box-shadow: var(--shadow-md);
    transition: var(--transition-slow);
    cursor: pointer;
}

.product-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-xl);
}

.product-image {
    position: relative;
    aspect-ratio: 4/3;
    overflow: hidden;
}

.product-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: var(--transition-slow);
}

.product-card:hover .product-image img {
    transform: scale(1.08);
}

.product-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, rgba(30, 58, 95, 0.9) 0%, rgba(15, 31, 51, 0.95) 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: var(--transition);
}

.product-card:hover .product-overlay {
    opacity: 1;
}

.overlay-text {
    padding: 12px 32px;
    border: 2px solid var(--accent);
    border-radius: 50px;
    color: var(--accent);
    font-size: 14px;
    font-weight: 500;
    transform: translateY(20px);
    transition: var(--transition-slow);
    transition-delay: 0.1s;
}

.product-card:hover .overlay-text {
    transform: translateY(0);
}

.product-info {
    padding: 24px;
}

.product-name {
    font-size: 18px;
    font-weight: 600;
    color: var(--primary-dark);
    margin-bottom: 8px;
}

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

/* 生产工艺区块 */
.process-section {
    padding: 120px 0;
    background: var(--bg-light);
    position: relative;
    overflow: hidden;
}

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

.process-grid::before {
    content: '';
    position: absolute;
    top: 85px;
    left: 12.5%;
    right: 12.5%;
    height: 2px;
    background: repeating-linear-gradient(
        90deg,
        var(--accent) 0,
        var(--accent) 8px,
        transparent 8px,
        transparent 16px
    );
    opacity: 0.3;
    z-index: 0;
}

.process-card {
    background: var(--bg-white);
    border-radius: 12px;
    padding: 40px 28px;
    text-align: center;
    position: relative;
    z-index: 1;
    transition: var(--transition-slow);
    border: 1px solid var(--border);
}

.process-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-xl);
    border-color: var(--accent);
}

.process-step {
    font-family: 'Playfair Display', serif;
    font-size: 14px;
    font-weight: 700;
    letter-spacing: 2px;
    color: var(--accent);
    margin-bottom: 24px;
}

.process-icon {
    width: 70px;
    height: 70px;
    margin: 0 auto 24px;
    background: linear-gradient(135deg, rgba(30, 58, 95, 0.08) 0%, rgba(30, 58, 95, 0.03) 100%);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--primary);
    transition: var(--transition);
    border: 2px solid var(--border);
}

.process-card:hover .process-icon {
    background: linear-gradient(135deg, var(--accent) 0%, var(--accent-dark) 100%);
    color: var(--bg-white);
    border-color: var(--accent);
    transform: scale(1.1);
}

.process-icon svg {
    width: 30px;
    height: 30px;
}

.process-title {
    font-size: 20px;
    font-weight: 700;
    color: var(--primary-dark);
    margin-bottom: 12px;
}

.process-desc {
    font-size: 14px;
    color: var(--text-body);
    line-height: 1.7;
}

/* 行业应用区块 */
.industries-section {
    padding: 120px 0;
    background: var(--bg-white);
}

.industries-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
}

.industry-card {
    background: var(--bg-light);
    border-radius: 12px;
    padding: 40px 32px;
    text-align: center;
    transition: var(--transition-slow);
    border: 1px solid transparent;
    position: relative;
    overflow: hidden;
}

.industry-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 3px;
    background: linear-gradient(90deg, var(--accent), var(--accent-light));
    transform: scaleX(0);
    transition: var(--transition-slow);
    transform-origin: center;
}

.industry-card:hover {
    background: var(--bg-white);
    box-shadow: var(--shadow-lg);
    border-color: var(--border);
    transform: translateY(-6px);
}

.industry-card:hover::before {
    transform: scaleX(1);
}

.industry-icon {
    width: 64px;
    height: 64px;
    margin: 0 auto 24px;
    background: linear-gradient(135deg, rgba(212, 168, 87, 0.15) 0%, rgba(212, 168, 87, 0.05) 100%);
    border-radius: 14px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--accent);
    transition: var(--transition);
}

.industry-card:hover .industry-icon {
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
    color: var(--accent-light);
    transform: rotate(5deg);
}

.industry-icon svg {
    width: 28px;
    height: 28px;
}

.industry-name {
    font-size: 20px;
    font-weight: 700;
    color: var(--primary-dark);
    margin-bottom: 12px;
}

.industry-desc {
    font-size: 14px;
    color: var(--text-body);
    line-height: 1.7;
}

.about {
    padding: 120px 0;
    background: var(--bg-light);
}

.about-grid {
    display: grid;
    grid-template-columns: 1.2fr 1fr;
    gap: 80px;
    align-items: center;
}

.about-content .section-tag {
    display: inline-block;
}

.about-content .section-title {
    display: block;
    text-align: left;
    margin-bottom: 32px;
}

.about-content .section-title::after {
    left: 0;
    transform: none;
}

.about-text {
    font-size: 16px;
    color: var(--text-body);
    line-height: 1.9;
    margin-bottom: 20px;
}

.about-stats {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
    margin-top: 40px;
    padding-top: 40px;
    border-top: 1px solid var(--border);
}

.stat-item {
    text-align: center;
}

.stat-number {
    display: block;
    font-family: 'Playfair Display', serif;
    font-size: 42px;
    font-weight: 700;
    background: linear-gradient(135deg, var(--accent) 0%, var(--accent-dark) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 8px;
}

.stat-label {
    font-size: 13px;
    color: var(--text-light);
}

.about-image {
    position: relative;
}

.image-frame {
    position: relative;
    border-radius: 16px;
    overflow: hidden;
    box-shadow: var(--shadow-xl);
}

.image-frame::before {
    content: '';
    position: absolute;
    inset: 0;
    border: 2px solid var(--accent);
    border-radius: 16px;
    transform: translate(20px, 20px);
    z-index: -1;
    opacity: 0.3;
}

.image-frame img {
    width: 100%;
    height: auto;
}

.cert-badge {
    position: absolute;
    bottom: -20px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 14px 28px;
    background: var(--bg-white);
    border-radius: 50px;
    box-shadow: var(--shadow-lg);
    color: var(--primary-dark);
    font-weight: 600;
    font-size: 14px;
    white-space: nowrap;
}

.cert-badge svg {
    width: 20px;
    height: 20px;
    color: var(--accent);
}

.services-strip {
    padding: 80px 0;
    background: linear-gradient(135deg, var(--primary-dark) 0%, var(--primary) 100%);
    position: relative;
    overflow: hidden;
}

.services-strip::before {
    content: '';
    position: absolute;
    inset: 0;
    background: 
        radial-gradient(ellipse at 20% 50%, rgba(212, 168, 87, 0.1) 0%, transparent 40%),
        radial-gradient(ellipse at 80% 50%, rgba(212, 168, 87, 0.05) 0%, transparent 40%);
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 40px;
    position: relative;
    z-index: 2;
}

.service-item {
    text-align: center;
    color: var(--bg-white);
}

.service-icon {
    width: 70px;
    height: 70px;
    margin: 0 auto 24px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 14px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--accent-light);
    transition: var(--transition);
}

.service-item:hover .service-icon {
    background: var(--accent);
    color: var(--bg-white);
    transform: translateY(-4px);
}

.service-icon svg {
    width: 30px;
    height: 30px;
}

.service-item h4 {
    font-size: 18px;
    font-weight: 600;
    margin-bottom: 8px;
}

.service-item p {
    font-size: 14px;
    color: rgba(255, 255, 255, 0.6);
    line-height: 1.6;
}

.contact {
    padding: 120px 0;
    background: var(--bg-white);
}

.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
}

.contact-info {
    display: flex;
    flex-direction: column;
}

.contact-card {
    display: flex;
    align-items: center;
    gap: 20px;
    padding: 30px;
    background: linear-gradient(135deg, var(--primary-dark) 0%, var(--primary) 100%);
    border-radius: 16px;
    margin-bottom: 30px;
}

.contact-avatar {
    width: 70px;
    height: 70px;
    background: linear-gradient(135deg, var(--accent) 0%, var(--accent-dark) 100%);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 28px;
    font-weight: 700;
    color: var(--bg-white);
    flex-shrink: 0;
}

.contact-person h3 {
    font-size: 22px;
    font-weight: 700;
    color: var(--bg-white);
    margin-bottom: 4px;
}

.contact-role {
    font-size: 14px;
    color: rgba(255, 255, 255, 0.6);
}

.contact-list {
    display: flex;
    flex-direction: column;
    gap: 16px;
    margin-bottom: 30px;
}

.contact-item {
    display: flex;
    align-items: center;
    gap: 18px;
    padding: 22px 24px;
    background: var(--bg-light);
    border-radius: 12px;
    transition: var(--transition);
    border: 1px solid transparent;
}

.contact-item:hover {
    background: var(--bg-white);
    border-color: var(--accent);
    box-shadow: var(--shadow-md);
    transform: translateX(4px);
}

.contact-icon {
    width: 52px;
    height: 52px;
    background: linear-gradient(135deg, rgba(212, 168, 87, 0.15) 0%, rgba(212, 168, 87, 0.05) 100%);
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--accent);
    flex-shrink: 0;
    transition: var(--transition);
}

.contact-item:hover .contact-icon {
    background: linear-gradient(135deg, var(--accent) 0%, var(--accent-dark) 100%);
    color: var(--bg-white);
}

.contact-icon svg {
    width: 22px;
    height: 22px;
}

.contact-detail {
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.contact-label {
    font-size: 13px;
    color: var(--text-light);
}

.contact-value {
    font-size: 16px;
    font-weight: 600;
    color: var(--primary-dark);
}

.contact-arrow {
    color: var(--text-light);
    opacity: 0;
    transform: translateX(-10px);
    transition: var(--transition);
}

.contact-item:hover .contact-arrow {
    opacity: 1;
    transform: translateX(0);
}

.contact-arrow svg {
    width: 20px;
    height: 20px;
}

.contact-cta {
    margin-top: auto;
}

.contact-form-card {
    background: var(--bg-light);
    border-radius: 16px;
    padding: 50px 40px;
}

.contact-form-card h3 {
    font-size: 28px;
    font-weight: 700;
    color: var(--primary-dark);
    margin-bottom: 8px;
}

.form-subtitle {
    font-size: 15px;
    color: var(--text-light);
    margin-bottom: 32px;
}

.contact-form {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 16px 20px;
    border: 1px solid var(--border);
    border-radius: 10px;
    font-size: 15px;
    font-family: inherit;
    color: var(--text-dark);
    background: var(--bg-white);
    transition: var(--transition);
    outline: none;
}

.form-group input:focus,
.form-group textarea:focus {
    border-color: var(--accent);
    box-shadow: 0 0 0 3px rgba(212, 168, 87, 0.1);
}

.form-group input::placeholder,
.form-group textarea::placeholder {
    color: var(--text-light);
}

.form-group textarea {
    resize: vertical;
    min-height: 120px;
}

.footer {
    background: var(--primary-dark);
    color: rgba(255, 255, 255, 0.7);
    padding: 80px 0 0;
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1.5fr;
    gap: 60px;
    padding-bottom: 60px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.footer-brand .footer-logo {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 24px;
}

.footer-brand .logo-cn {
    color: var(--bg-white);
}

.footer-brand .logo-en {
    color: rgba(255, 255, 255, 0.5);
}

.footer-desc {
    font-size: 14px;
    line-height: 1.8;
    margin-bottom: 24px;
}

.footer-contact {
    display: flex;
    flex-direction: column;
    gap: 10px;
    font-size: 14px;
}

.footer-links h4 {
    font-size: 16px;
    font-weight: 600;
    color: var(--bg-white);
    margin-bottom: 24px;
}

.footer-links ul {
    display: flex;
    flex-direction: column;
    gap: 14px;
}

.footer-links a {
    font-size: 14px;
    color: rgba(255, 255, 255, 0.6);
    transition: var(--transition);
}

.footer-links a:hover {
    color: var(--accent);
    padding-left: 6px;
}

.footer-info h4 {
    font-size: 16px;
    font-weight: 600;
    color: var(--bg-white);
    margin-bottom: 24px;
}

.info-item {
    display: flex;
    flex-direction: column;
    gap: 4px;
    margin-bottom: 20px;
}

.info-label {
    font-size: 12px;
    color: rgba(255, 255, 255, 0.4);
    letter-spacing: 1px;
}

.info-value {
    font-size: 14px;
    line-height: 1.6;
}

.footer-bottom {
    padding: 24px 0;
    text-align: center;
    font-size: 13px;
    color: rgba(255, 255, 255, 0.4);
}

.footer-bottom p {
    margin: 4px 0;
}

.floating-phone {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 60px;
    height: 60px;
    background: linear-gradient(135deg, var(--accent) 0%, var(--accent-dark) 100%);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--bg-white);
    box-shadow: var(--shadow-gold);
    z-index: 999;
    animation: floatPhone 3s ease-in-out infinite;
    transition: var(--transition);
}

.floating-phone:hover {
    transform: scale(1.1);
    box-shadow: 0 15px 40px rgba(212, 168, 87, 0.5);
}

.floating-phone svg {
    width: 26px;
    height: 26px;
}

@keyframes floatPhone {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-8px); }
}

.reveal {
    opacity: 0;
    transform: translateY(40px);
    transition: opacity 0.8s ease, transform 0.8s ease;
}

.reveal.active {
    opacity: 1;
    transform: translateY(0);
}

a.product-card {
    display: block;
    color: inherit;
    text-decoration: none;
    outline: none;
}

a.product-card:hover {
    color: inherit;
    text-decoration: none;
}

.btn-outline {
    background: transparent;
    color: var(--primary);
    border: 2px solid var(--border);
}

.btn-outline:hover {
    border-color: var(--primary);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.product-chip {
    display: inline-block;
    padding: 6px 14px;
    border-radius: 50px;
    background: rgba(212, 168, 87, 0.12);
    color: var(--accent-dark);
    font-size: 13px;
    font-weight: 500;
    margin: 0 8px 8px 0;
    letter-spacing: 0.5px;
}

.breadcrumb-section {
    padding: 110px 0 20px;
    background: var(--bg-light);
    border-bottom: 1px solid var(--border);
}

.breadcrumb {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 14px;
    color: var(--text-light);
    flex-wrap: wrap;
}

.breadcrumb li {
    display: flex;
    align-items: center;
    gap: 10px;
}

.breadcrumb li::after {
    content: '›';
    color: var(--text-light);
    font-size: 18px;
    line-height: 1;
}

.breadcrumb li:last-child::after {
    display: none;
}

.breadcrumb a {
    color: var(--text-body);
    transition: var(--transition);
}

.breadcrumb a:hover {
    color: var(--accent);
}

.breadcrumb .active {
    color: var(--primary-dark);
    font-weight: 600;
}

.detail-hero {
    padding: 60px 0 80px;
    background: var(--bg-light);
    position: relative;
}

.detail-hero::after {
    content: '';
    position: absolute;
    left: 0;
    right: 0;
    bottom: 0;
    height: 120px;
    background: var(--bg-white);
    z-index: 0;
}

.detail-hero-grid {
    display: grid;
    grid-template-columns: 1.1fr 1fr;
    gap: 60px;
    position: relative;
    z-index: 2;
    align-items: start;
}

.detail-image-wrap {
    position: relative;
}

.detail-image-frame {
    position: relative;
    background: var(--bg-white);
    border-radius: 16px;
    padding: 30px;
    box-shadow: var(--shadow-lg);
    overflow: hidden;
    border: 1px solid var(--border);
}

.detail-image-frame::before {
    content: '';
    position: absolute;
    inset: 0;
    background: radial-gradient(ellipse at 30% 20%, rgba(212, 168, 87, 0.06), transparent 60%);
    pointer-events: none;
}

.detail-image-frame img {
    width: 100%;
    height: auto;
    border-radius: 10px;
    position: relative;
    z-index: 1;
    object-fit: cover;
    max-height: 520px;
}

.detail-image-tag {
    position: absolute;
    top: 16px;
    right: 16px;
    padding: 6px 14px;
    border-radius: 50px;
    background: rgba(30, 58, 95, 0.85);
    color: var(--bg-white);
    font-size: 12px;
    font-weight: 500;
    backdrop-filter: blur(8px);
    z-index: 3;
    letter-spacing: 1px;
}

.detail-summary {
    padding: 20px 0;
}

.detail-summary-tag {
    margin-bottom: 20px;
}

.detail-name {
    font-size: 36px;
    font-weight: 700;
    color: var(--primary-dark);
    margin-bottom: 12px;
    line-height: 1.3;
}

.detail-short-desc {
    font-size: 17px;
    color: var(--text-body);
    line-height: 1.7;
    margin-bottom: 24px;
}

.detail-divider {
    width: 60px;
    height: 3px;
    background: linear-gradient(90deg, var(--accent), var(--accent-light));
    border-radius: 2px;
    margin-bottom: 28px;
}

.detail-specs {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 18px;
    margin-bottom: 36px;
}

.spec-item {
    display: flex;
    align-items: flex-start;
    gap: 14px;
    padding: 16px;
    background: var(--bg-white);
    border-radius: 10px;
    border: 1px solid var(--border);
    transition: var(--transition);
}

.spec-item:hover {
    border-color: var(--accent);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.spec-icon {
    width: 40px;
    height: 40px;
    border-radius: 10px;
    background: linear-gradient(135deg, rgba(212, 168, 87, 0.15), rgba(212, 168, 87, 0.05));
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--accent);
    flex-shrink: 0;
}

.spec-icon svg {
    width: 20px;
    height: 20px;
}

.spec-meta {
    display: flex;
    flex-direction: column;
    gap: 4px;
    min-width: 0;
}

.spec-label {
    font-size: 12px;
    color: var(--text-light);
    letter-spacing: 0.5px;
}

.spec-value {
    font-size: 14px;
    font-weight: 600;
    color: var(--primary-dark);
    line-height: 1.4;
    word-break: break-word;
}

.detail-cta {
    display: flex;
    gap: 16px;
    margin-bottom: 28px;
    flex-wrap: wrap;
}

.detail-cta .btn {
    flex: 1;
    min-width: 160px;
}

.detail-contact-box {
    display: flex;
    align-items: center;
    gap: 16px;
    padding: 20px;
    background: linear-gradient(135deg, rgba(30, 58, 95, 0.04), rgba(30, 58, 95, 0.01));
    border-radius: 12px;
    border: 1px solid var(--border);
}

.dc-avatar {
    width: 52px;
    height: 52px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--accent) 0%, var(--accent-dark) 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--bg-white);
    font-weight: 700;
    font-size: 20px;
    flex-shrink: 0;
    box-shadow: var(--shadow-gold);
}

.dc-info {
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.dc-name {
    font-size: 15px;
    color: var(--text-body);
    font-weight: 500;
}

.dc-phone {
    font-size: 18px;
    color: var(--primary-dark);
    font-weight: 700;
    letter-spacing: 0.5px;
}

.detail-content {
    padding: 60px 0;
    background: var(--bg-white);
}

.detail-tabs {
    display: flex;
    gap: 8px;
    border-bottom: 1px solid var(--border);
    margin-bottom: 40px;
    padding: 0 20px;
    justify-content: center;
    flex-wrap: wrap;
}

.tab-item {
    padding: 16px 28px;
    font-size: 15px;
    font-weight: 600;
    color: var(--text-light);
    cursor: pointer;
    position: relative;
    transition: var(--transition);
    white-space: nowrap;
}

.tab-item::after {
    content: '';
    position: absolute;
    left: 20%;
    right: 20%;
    bottom: -1px;
    height: 3px;
    background: linear-gradient(90deg, var(--accent), var(--accent-light));
    border-radius: 3px 3px 0 0;
    transform: scaleX(0);
    transition: var(--transition-slow);
}

.tab-item:hover {
    color: var(--primary);
}

.tab-item.active {
    color: var(--primary-dark);
}

.tab-item.active::after {
    transform: scaleX(1);
}

.tab-panel {
    display: none;
    max-width: 820px;
    margin: 0 auto;
    animation: fadeUp 0.4s ease;
}

.tab-panel.active {
    display: block;
}

@keyframes fadeUp {
    from {
        opacity: 0;
        transform: translateY(16px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.panel-title {
    display: flex;
    align-items: center;
    gap: 16px;
    font-size: 22px;
    font-weight: 700;
    color: var(--primary-dark);
    margin-bottom: 28px;
}

.panel-line {
    display: block;
    width: 4px;
    height: 22px;
    background: linear-gradient(180deg, var(--accent) 0%, var(--accent-light) 100%);
    border-radius: 2px;
}

.features-list {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.feature-item {
    display: flex;
    align-items: flex-start;
    gap: 16px;
    padding: 20px 24px;
    background: var(--bg-light);
    border-radius: 10px;
    transition: var(--transition);
    border-left: 3px solid transparent;
}

.feature-item:hover {
    background: linear-gradient(90deg, rgba(212, 168, 87, 0.06), rgba(212, 168, 87, 0.01));
    border-left-color: var(--accent);
    padding-left: 22px;
}

.feature-check {
    width: 28px;
    height: 28px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--accent), var(--accent-dark));
    color: var(--bg-white);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    margin-top: 2px;
}

.feature-check svg {
    width: 16px;
    height: 16px;
}

.feature-text {
    font-size: 15px;
    color: var(--text-body);
    line-height: 1.7;
}

.app-box {
    display: flex;
    align-items: flex-start;
    gap: 20px;
    padding: 28px;
    background: var(--bg-light);
    border-radius: 12px;
    margin-bottom: 24px;
    border: 1px solid var(--border);
}

.app-icon {
    width: 52px;
    height: 52px;
    border-radius: 12px;
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
    color: var(--accent-light);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.app-icon svg {
    width: 24px;
    height: 24px;
}

.app-box p {
    font-size: 16px;
    color: var(--primary-dark);
    font-weight: 500;
    line-height: 1.7;
    padding-top: 12px;
}

.app-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
}

.app-tag-item {
    padding: 10px 20px;
    background: var(--bg-white);
    border: 1px solid var(--border);
    border-radius: 50px;
    font-size: 14px;
    color: var(--text-body);
    font-weight: 500;
    transition: var(--transition);
}

.app-tag-item:hover {
    border-color: var(--accent);
    color: var(--primary-dark);
    box-shadow: var(--shadow-sm);
}

.custom-box {
    background: linear-gradient(135deg, var(--primary-dark) 0%, var(--primary) 100%);
    border-radius: 14px;
    padding: 36px;
    position: relative;
    overflow: hidden;
    margin-bottom: 32px;
}

.custom-box::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -10%;
    width: 400px;
    height: 400px;
    background: radial-gradient(circle, rgba(212, 168, 87, 0.15), transparent 70%);
    pointer-events: none;
}

.custom-quote {
    width: 40px;
    height: 40px;
    color: var(--accent);
    opacity: 0.8;
    margin-bottom: 16px;
    position: relative;
    z-index: 2;
}

.custom-quote svg {
    width: 100%;
    height: 100%;
}

.custom-box p {
    font-size: 16px;
    color: rgba(255, 255, 255, 0.92);
    line-height: 1.8;
    position: relative;
    z-index: 2;
}

.custom-flow {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    flex-wrap: wrap;
    padding: 10px;
}

.cf-item {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 14px 20px;
    background: var(--bg-light);
    border-radius: 10px;
    border: 1px solid var(--border);
    flex-shrink: 0;
}

.cf-step {
    font-family: 'Playfair Display', serif;
    font-size: 18px;
    font-weight: 700;
    color: var(--accent);
}

.cf-item span:last-child {
    font-size: 14px;
    font-weight: 600;
    color: var(--primary-dark);
}

.cf-arrow {
    width: 22px;
    height: 2px;
    background: linear-gradient(90deg, var(--accent), var(--accent-light));
    position: relative;
    flex-shrink: 0;
}

.cf-arrow::after {
    content: '';
    position: absolute;
    right: -2px;
    top: 50%;
    transform: translateY(-50%);
    border-left: 6px solid var(--accent);
    border-top: 5px solid transparent;
    border-bottom: 5px solid transparent;
}

.related-products {
    padding: 80px 0 100px;
    background: var(--bg-light);
}

.related-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
    margin-bottom: 40px;
}

.related-card {
    display: block;
    background: var(--bg-white);
    border-radius: 12px;
    overflow: hidden;
    box-shadow: var(--shadow-sm);
    transition: var(--transition-slow);
    border: 1px solid var(--border);
}

.related-card:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow-lg);
    border-color: transparent;
}

.related-img {
    aspect-ratio: 4 / 3;
    overflow: hidden;
}

.related-img img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: var(--transition-slow);
}

.related-card:hover .related-img img {
    transform: scale(1.08);
}

.related-info {
    padding: 18px 18px 20px;
}

.related-name {
    font-size: 16px;
    font-weight: 600;
    color: var(--primary-dark);
    margin-bottom: 6px;
    transition: var(--transition);
}

.related-card:hover .related-name {
    color: var(--accent-dark);
}

.related-desc {
    font-size: 13px;
    color: var(--text-light);
    margin-bottom: 12px;
    line-height: 1.5;
}

.related-link {
    font-size: 13px;
    font-weight: 600;
    color: var(--accent);
    transition: var(--transition);
}

.related-card:hover .related-link {
    color: var(--accent-dark);
    letter-spacing: 1px;
}

.related-back {
    text-align: center;
}

.related-back .btn {
    min-width: 200px;
}

@media (max-width: 1024px) {
    .products-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .about-grid {
        grid-template-columns: 1fr;
        gap: 60px;
    }
    
    .services-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 40px;
    }
    
    .footer-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 40px;
    }
    
    .process-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .process-grid::before {
        display: none;
    }
    
    .industries-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .detail-hero-grid {
        grid-template-columns: 1fr;
        gap: 40px;
    }

    .detail-image-frame {
        max-width: 620px;
        margin: 0 auto;
    }

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

@media (max-width: 768px) {
    .nav-menu {
        position: fixed;
        top: 0;
        right: -100%;
        width: 70%;
        height: 100vh;
        background: var(--bg-white);
        flex-direction: column;
        justify-content: center;
        align-items: center;
        gap: 30px;
        transition: right 0.4s cubic-bezier(0.4, 0, 0.2, 1);
        box-shadow: -10px 0 30px rgba(0, 0, 0, 0.1);
    }
    
    .nav-menu.active {
        right: 0;
    }
    
    .nav-menu .nav-link {
        color: var(--text-dark);
        font-size: 18px;
    }
    
    .nav-toggle {
        display: flex;
        z-index: 1001;
    }
    
    .hero-title {
        font-size: 36px;
    }
    
    .hero-subtitle {
        font-size: 18px;
    }
    
    .hero-desc {
        font-size: 15px;
    }
    
    .section-title {
        font-size: 32px;
    }
    
    .advantages-grid {
        grid-template-columns: 1fr;
    }
    
    .products-grid {
        grid-template-columns: 1fr;
    }
    
    .contact-grid {
        grid-template-columns: 1fr;
    }
    
    .about-stats {
        grid-template-columns: repeat(3, 1fr);
        gap: 12px;
    }
    
    .stat-number {
        font-size: 32px;
    }
    
    .services-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 30px;
    }
    
    .footer-grid {
        grid-template-columns: 1fr;
        gap: 40px;
    }
    
    .advantages,
    .products,
    .about,
    .contact,
    .process-section,
    .industries-section {
        padding: 80px 0;
    }
    
    .process-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 20px;
    }
    
    .industries-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 20px;
    }
    
    .industry-card,
    .process-card {
        padding: 30px 20px;
    }
    
    .contact-form-card {
        padding: 30px 24px;
    }
    
    .floating-phone {
        width: 54px;
        height: 54px;
        bottom: 20px;
        right: 20px;
    }

    .breadcrumb-section {
        padding: 90px 0 16px;
    }

    .detail-hero {
        padding: 40px 0 60px;
    }

    .detail-name {
        font-size: 28px;
    }

    .detail-short-desc {
        font-size: 15px;
    }

    .detail-specs {
        grid-template-columns: 1fr;
        gap: 12px;
    }

    .detail-cta {
        flex-direction: column;
    }

    .detail-cta .btn {
        width: 100%;
        flex: none;
    }

    .detail-content {
        padding: 40px 0;
    }

    .detail-tabs {
        gap: 0;
        padding: 0;
    }

    .tab-item {
        padding: 14px 16px;
        font-size: 14px;
    }

    .panel-title {
        font-size: 18px;
    }

    .feature-item {
        padding: 16px 18px;
        gap: 12px;
    }

    .app-box {
        flex-direction: column;
        padding: 20px;
    }

    .custom-box {
        padding: 24px;
    }

    .custom-flow {
        gap: 6px;
    }

    .cf-item {
        padding: 10px 14px;
    }

    .cf-arrow {
        width: 14px;
    }

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

    .related-products {
        padding: 60px 0 80px;
    }
}

@media (max-width: 480px) {
    .hero-title {
        font-size: 28px;
    }
    
    .hero-buttons {
        flex-direction: column;
        align-items: center;
    }
    
    .btn {
        width: 100%;
        max-width: 280px;
    }
    
    .about-stats {
        grid-template-columns: 1fr;
        gap: 24px;
    }
    
    .services-grid {
        grid-template-columns: 1fr;
    }
    
    .process-grid {
        grid-template-columns: 1fr;
    }
    
    .industries-grid {
        grid-template-columns: 1fr;
    }
    
    .section-title {
        font-size: 26px;
    }
}