/* Eugenze Multi-Page Website - Unified Styles */

/* CSS Variables */
:root {
    --bg-primary: #0A1428;
    --bg-secondary: #0F1E38;
    --bg-tertiary: #162A4A;
    --accent-gold: #C9A962;
    --accent-gold-light: #E8DCC4;
    --accent-orange: #E84545;
    --accent-purple: #7B4B94;
    --text-primary: #FFFFFF;
    --text-secondary: #8A8A8A;
    --border-subtle: #2A2A2A;
    --font-display: 'Playfair Display', Georgia, serif;
    --font-body: 'DM Sans', -apple-system, sans-serif;
}

/* Reset & Base */
*, *::before, *::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-body);
    background-color: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.6;
    overflow-x: hidden;
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-display);
    font-weight: 600;
    line-height: 1.2;
}

a {
    text-decoration: none;
    color: inherit;
    transition: color 0.3s ease;
}

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

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

/* Special Text Highlights - Orange for "元" and "成" */
.highlight-yuan,
.highlight-cheng {
    color: var(--accent-orange) !important;
}

/* Submenu Styles */
.nav-item-has-submenu {
    position: relative;
}

.nav-submenu {
    position: absolute;
    top: 100%;
    left: 0;
    min-width: 200px;
    background: var(--bg-secondary);
    border: 1px solid var(--border-subtle);
    border-radius: 8px;
    padding: 12px 0;
    opacity: 0;
    visibility: hidden;
    transform: translateY(10px);
    transition: all 0.3s ease;
    z-index: 100;
}

.nav-item-has-submenu:hover .nav-submenu {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.nav-submenu a {
    display: block;
    padding: 10px 20px;
    color: var(--text-secondary);
    font-size: 14px;
    transition: all 0.3s ease;
}

.nav-submenu a:hover {
    color: var(--accent-gold);
    background: var(--bg-tertiary);
}

/* Navigation */
.nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    padding: 20px 0;
    transition: all 0.4s ease;
}

.nav.scrolled {
    background: rgba(10, 10, 10, 0.95);
    backdrop-filter: blur(20px);
    padding: 12px 0;
    border-bottom: 1px solid var(--border-subtle);
}

.nav-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.logo-link {
    display: inline-block;
}

.logo-img {
    height: 40px;
    width: auto;
    transition: transform 0.3s ease;
}

.logo-link:hover .logo-img {
    transform: scale(1.05);
}

.logo {
    font-family: var(--font-display);
    font-size: 28px;
    font-weight: 700;
    color: var(--text-primary);
    letter-spacing: 2px;
}

.logo span {
    color: var(--accent-gold);
}

.nav-links {
    display: flex;
    align-items: center;
    gap: 40px;
}

.nav-links a {
    font-size: 15px;
    color: var(--text-secondary);
    font-weight: 500;
    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 ease;
}

.nav-links a:hover {
    color: var(--text-primary);
}

.nav-links a:hover::after {
    width: 100%;
}

.nav-links a.active {
    color: var(--accent-gold);
}

.nav-links a.active::after {
    width: 100%;
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 14px 32px;
    font-family: var(--font-body);
    font-size: 15px;
    font-weight: 600;
    border-radius: 4px;
    cursor: pointer;
    transition: all 0.3s ease;
    border: none;
}

.btn-primary {
    background: var(--accent-gold);
    color: var(--bg-primary);
}

.btn-primary:hover {
    background: var(--accent-gold-light);
    transform: translateY(-2px);
}

.btn-secondary {
    background: transparent;
    color: var(--text-primary);
    border: 1px solid var(--border-subtle);
}

.btn-secondary:hover {
    border-color: var(--accent-gold);
    color: var(--accent-gold);
}

.btn-small {
    padding: 10px 20px;
    font-size: 14px;
}

/* Mobile Menu Toggle */
.menu-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    cursor: pointer;
    padding: 10px;
}

.menu-toggle span {
    width: 24px;
    height: 2px;
    background: var(--text-primary);
    transition: all 0.3s ease;
}

/* Page Header/Hero */
.page-header {
    position: relative;
    min-height: 50vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--bg-secondary);
    overflow: hidden;
}

.page-header::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, rgba(201, 169, 98, 0.1) 0%, transparent 50%);
    z-index: 0;
}

.page-header-content {
    position: relative;
    z-index: 1;
    text-align: center;
    padding-top: 80px;
}

.page-header h1 {
    font-size: 56px;
    margin-bottom: 16px;
}

.page-header h1 span {
    color: var(--accent-gold);
}

.page-header p {
    font-size: 18px;
    color: var(--text-secondary);
    max-width: 600px;
    margin: 0 auto;
}

/* Hero Section */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    overflow: hidden;
}

.hero-video {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    z-index: -1;
}

.hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(
        180deg,
        rgba(10, 10, 10, 0.7) 0%,
        rgba(10, 10, 10, 0.85) 100%
    );
    z-index: 0;
}

.hero-content {
    position: relative;
    z-index: 1;
    max-width: 900px;
}

.hero-title {
    font-size: 72px;
    margin-bottom: 24px;
    opacity: 0;
    transform: translateY(30px);
    animation: fadeInUp 1s ease forwards 0.3s;
}

.hero-title span {
    color: var(--accent-gold);
}

.hero-subtitle {
    font-size: 20px;
    color: var(--text-secondary);
    margin-bottom: 40px;
    max-width: 640px;
    opacity: 0;
    transform: translateY(30px);
    animation: fadeInUp 1s ease forwards 0.5s;
}

.hero-buttons {
    display: flex;
    gap: 16px;
    opacity: 0;
    transform: translateY(30px);
    animation: fadeInUp 1s ease forwards 0.7s;
}

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

/* Section Styles */
section {
    padding: 120px 0;
}

.section-header {
    text-align: center;
    margin-bottom: 64px;
}

.section-label {
    font-size: 13px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 3px;
    color: var(--accent-gold);
    margin-bottom: 16px;
}

.section-title {
    font-size: 48px;
    margin-bottom: 16px;
}

.section-subtitle {
    font-size: 18px;
    color: var(--text-secondary);
    max-width: 600px;
    margin: 0 auto;
}

/* About Section */
.about {
    background: var(--bg-secondary);
}

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

.about-image {
    position: relative;
    border-radius: 8px;
    overflow: hidden;
}

.about-image::before {
    content: '';
    position: absolute;
    top: -2px;
    left: -2px;
    right: -2px;
    bottom: -2px;
    background: linear-gradient(135deg, var(--accent-gold), transparent);
    border-radius: 8px;
    z-index: -1;
    opacity: 0.5;
}

.about-image img {
    width: 100%;
    height: 400px;
    object-fit: cover;
}

.vi-decoration {
    position: absolute;
    bottom: -30px;
    right: -30px;
    width: 120px;
    height: 120px;
    background: var(--bg-primary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 15px;
    border: 1px solid var(--accent-gold);
    box-shadow: 0 0 30px rgba(201, 169, 98, 0.2);
}

.mobius-icon {
    width: 100%;
    height: auto;
    animation: rotateInfinite 20s linear infinite;
}

@keyframes rotateInfinite {
    from { transform: rotate(0deg); }
    to { transform: rotate(360deg); }
}

.about-content h2 {
    font-size: 40px;
    margin-bottom: 24px;
}

.about-content p {
    font-size: 17px;
    color: var(--text-secondary);
    margin-bottom: 24px;
}

.about-features {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
    margin-top: 32px;
}

.about-feature {
    display: flex;
    align-items: center;
    gap: 12px;
}

.about-feature svg {
    width: 20px;
    height: 20px;
    color: var(--accent-gold);
}

/* Services Section */
.services-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 32px;
}

.service-card {
    background: var(--bg-secondary);
    border: 1px solid var(--border-subtle);
    padding: 40px 32px;
    border-radius: 8px;
    transition: all 0.4s ease;
}

.service-card:hover {
    transform: translateY(-8px);
    border-color: var(--accent-gold);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.3);
}

.service-icon {
    width: 64px;
    height: 64px;
    margin-bottom: 24px;
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(201, 169, 98, 0.1);
}

.service-icon img {
    width: 32px;
    height: 32px;
}

.service-card h3 {
    font-size: 24px;
    margin-bottom: 12px;
    font-family: var(--font-body);
}

.service-card p {
    font-size: 15px;
    color: var(--text-secondary);
    line-height: 1.7;
}

/* Why Eugenze */
.why-section {
    background: var(--bg-secondary);
}

.why-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 32px;
}

.why-card {
    text-align: center;
    padding: 40px 24px;
    border: 1px solid var(--border-subtle);
    border-radius: 8px;
    transition: all 0.4s ease;
}

.why-card:hover {
    border-color: var(--accent-gold);
}

.why-icon {
    width: 56px;
    height: 56px;
    margin: 0 auto 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--accent-gold);
}

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

.why-card h4 {
    font-size: 20px;
    margin-bottom: 12px;
    font-family: var(--font-body);
    font-weight: 600;
}

.why-card p {
    font-size: 14px;
    color: var(--text-secondary);
    line-height: 1.7;
}

/* Stats Section */
.stats {
    background: linear-gradient(135deg, var(--bg-primary) 0%, var(--bg-secondary) 100%);
    border-top: 1px solid var(--border-subtle);
    border-bottom: 1px solid var(--border-subtle);
}

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

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

.stat-number {
    font-family: var(--font-display);
    font-size: 56px;
    font-weight: 700;
    color: var(--accent-gold);
    margin-bottom: 8px;
}

.stat-label {
    font-size: 15px;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 2px;
}

/* Contact Section */
.contact {
    background: var(--bg-secondary);
}

.contact-wrapper {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 80px;
}

.contact-info h2 {
    font-size: 40px;
    margin-bottom: 16px;
}

.contact-info p {
    font-size: 17px;
    color: var(--text-secondary);
    margin-bottom: 40px;
}

.contact-details {
    display: flex;
    flex-direction: column;
    gap: 24px;
}

.contact-item {
    display: flex;
    align-items: center;
    gap: 16px;
}

.contact-item svg {
    width: 24px;
    height: 24px;
    color: var(--accent-gold);
}

.contact-item span {
    font-size: 16px;
    color: var(--text-secondary);
}

.contact-form {
    background: var(--bg-primary);
    padding: 48px;
    border-radius: 8px;
    border: 1px solid var(--border-subtle);
}

.form-group {
    margin-bottom: 24px;
}

.form-group label {
    display: block;
    font-size: 14px;
    font-weight: 500;
    margin-bottom: 8px;
    color: var(--text-secondary);
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 16px;
    background: var(--bg-secondary);
    border: 1px solid var(--border-subtle);
    border-radius: 4px;
    color: var(--text-primary);
    font-family: var(--font-body);
    font-size: 15px;
    transition: border-color 0.3s ease;
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--accent-gold);
}

.form-group textarea {
    min-height: 140px;
    resize: vertical;
}

/* Footer */
.footer {
    background: var(--bg-primary);
    padding: 60px 0 30px;
    border-top: 1px solid var(--border-subtle);
}

.footer-content {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: 60px;
    margin-bottom: 40px;
}

.footer-brand p {
    font-size: 15px;
    color: var(--text-secondary);
    margin-top: 16px;
    max-width: 300px;
}

.footer h4 {
    font-size: 16px;
    font-family: var(--font-body);
    font-weight: 600;
    margin-bottom: 20px;
    color: var(--text-primary);
}

.footer-links {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.footer-links a {
    font-size: 14px;
    color: var(--text-secondary);
}

.footer-links a:hover {
    color: var(--accent-gold);
}

.footer-bottom {
    padding-top: 30px;
    border-top: 1px solid var(--border-subtle);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.footer-bottom p {
    font-size: 14px;
    color: var(--text-secondary);
}

/* ==================== PAGE SPECIFIC STYLES ==================== */

/* Experts Page */
.experts-filter {
    display: flex;
    justify-content: center;
    gap: 16px;
    margin-bottom: 60px;
    flex-wrap: wrap;
}

.filter-btn {
    padding: 12px 24px;
    background: transparent;
    border: 1px solid var(--border-subtle);
    border-radius: 4px;
    color: var(--text-secondary);
    font-family: var(--font-body);
    font-size: 14px;
    cursor: pointer;
    transition: all 0.3s ease;
}

.filter-btn:hover,
.filter-btn.active {
    background: var(--accent-gold);
    border-color: var(--accent-gold);
    color: var(--bg-primary);
}

.experts-carousel {
    position: relative;
    max-width: 800px;
    margin: 0 auto;
    padding: 40px 0;
}

.experts-slider {
    display: flex;
    justify-content: center;
    gap: 40px;
    perspective: 1000px;
}

.expert-card-container {
    width: 300px;
    height: 420px;
    perspective: 1000px;
    transform-style: preserve-3d;
}

.expert-card {
    position: relative;
    width: 100%;
    height: 100%;
    transform-style: preserve-3d;
    transition: transform 0.8s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    cursor: pointer;
}

.expert-card:hover {
    transform: rotateY(180deg);
}

.expert-card.flipped {
    transform: rotateY(180deg);
}

.expert-card-front,
.expert-card-back {
    position: absolute;
    width: 100%;
    height: 100%;
    backface-visibility: hidden;
    border-radius: 12px;
    overflow: hidden;
}

.expert-card-front {
    background: var(--bg-secondary);
    border: 1px solid var(--border-subtle);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 40px 24px;
}

.expert-card-back {
    background: var(--bg-secondary);
    border: 1px solid var(--accent-gold);
    transform: rotateY(180deg);
    padding: 32px 24px;
    overflow-y: auto;
}

.expert-photo {
    width: 140px;
    height: 140px;
    border-radius: 50%;
    object-fit: cover;
    border: 3px solid var(--accent-gold);
    margin-bottom: 24px;
}

.expert-name {
    font-size: 24px;
    margin-bottom: 8px;
    text-align: center;
}

.expert-field {
    color: var(--accent-gold);
    font-size: 14px;
    text-transform: uppercase;
    letter-spacing: 2px;
    margin-bottom: 16px;
}

.expert-experience {
    color: var(--text-secondary);
    font-size: 14px;
    text-align: center;
}

.expert-detail-title {
    font-size: 16px;
    color: var(--accent-gold);
    margin-bottom: 8px;
    margin-top: 16px;
}

.expert-detail-text {
    font-size: 13px;
    color: var(--text-secondary);
    line-height: 1.6;
}

.expert-contact {
    margin-top: 20px;
    padding-top: 20px;
    border-top: 1px solid var(--border-subtle);
}

.expert-contact-btn {
    width: 100%;
    padding: 12px;
    background: var(--accent-gold);
    color: var(--bg-primary);
    border: none;
    border-radius: 4px;
    font-family: var(--font-body);
    font-size: 14px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    margin-bottom: 8px;
}

.expert-contact-btn:hover {
    background: var(--accent-gold-light);
}

.expert-contact-info {
    font-size: 12px;
    color: var(--text-secondary);
    text-align: center;
}

.carousel-nav {
    display: flex;
    justify-content: center;
    gap: 16px;
    margin-top: 40px;
}

.carousel-btn {
    width: 50px;
    height: 50px;
    background: var(--bg-secondary);
    border: 1px solid var(--border-subtle);
    border-radius: 50%;
    color: var(--text-primary);
    font-size: 20px;
    cursor: pointer;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    justify-content: center;
}

.carousel-btn:hover {
    border-color: var(--accent-gold);
    color: var(--accent-gold);
}

.experts-auth {
    position: absolute;
    top: 20px;
    right: 24px;
    display: flex;
    gap: 16px;
}

.auth-btn {
    padding: 8px 20px;
    background: transparent;
    border: 1px solid var(--border-subtle);
    border-radius: 4px;
    color: var(--text-secondary);
    font-size: 14px;
    cursor: pointer;
    transition: all 0.3s ease;
}

.auth-btn:hover {
    border-color: var(--accent-gold);
    color: var(--accent-gold);
}

/* Solutions Page */
.solutions-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 40px;
}

.solution-card {
    background: var(--bg-secondary);
    border: 1px solid var(--border-subtle);
    border-radius: 8px;
    overflow: hidden;
    transition: all 0.4s ease;
}

.solution-card:hover {
    border-color: var(--accent-gold);
    transform: translateY(-8px);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.3);
}

.solution-header {
    background: linear-gradient(135deg, rgba(201, 169, 98, 0.1) 0%, transparent 100%);
    padding: 32px;
    border-bottom: 1px solid var(--border-subtle);
}

.solution-icon {
    width: 64px;
    height: 64px;
    background: var(--bg-primary);
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 16px;
}

.solution-icon svg {
    width: 32px;
    height: 32px;
    color: var(--accent-gold);
}

.solution-header h3 {
    font-size: 28px;
    margin-bottom: 8px;
}

.solution-header p {
    color: var(--text-secondary);
    font-size: 15px;
}

.solution-body {
    padding: 32px;
}

.solution-section-title {
    font-size: 14px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 2px;
    color: var(--accent-gold);
    margin-bottom: 16px;
}

.solution-features {
    list-style: none;
    margin-bottom: 24px;
}

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

.solution-features li svg {
    width: 16px;
    height: 16px;
    color: var(--accent-gold);
    flex-shrink: 0;
}

.solution-meta {
    display: flex;
    gap: 24px;
    padding-top: 24px;
    border-top: 1px solid var(--border-subtle);
}

.meta-item {
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.meta-label {
    font-size: 12px;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 1px;
}

.meta-value {
    font-size: 14px;
    font-weight: 600;
    color: var(--text-primary);
}

.solution-team {
    display: flex;
    gap: 16px;
    margin-top: 16px;
}

.team-member {
    display: flex;
    align-items: center;
    gap: 12px;
}

.team-avatar {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: var(--accent-gold);
    color: var(--bg-primary);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 14px;
    font-weight: 600;
}

.team-info {
    font-size: 13px;
}

.team-name {
    font-weight: 600;
    color: var(--text-primary);
}

.team-role {
    color: var(--text-secondary);
}

/* Technology Page */
.tech-sections {
    max-width: 900px;
    margin: 0 auto;
}

.tech-section {
    background: var(--bg-secondary);
    border: 1px solid var(--border-subtle);
    border-radius: 8px;
    padding: 48px;
    margin-bottom: 40px;
}

.tech-section h3 {
    font-size: 32px;
    margin-bottom: 16px;
    display: flex;
    align-items: center;
    gap: 16px;
}

.tech-section h3 svg {
    width: 40px;
    height: 40px;
    color: var(--accent-gold);
}

.tech-section > p {
    color: var(--text-secondary);
    font-size: 16px;
    margin-bottom: 32px;
}

.tech-features-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 24px;
}

.tech-feature {
    background: var(--bg-primary);
    border: 1px solid var(--border-subtle);
    border-radius: 8px;
    padding: 24px;
    transition: all 0.3s ease;
}

.tech-feature:hover {
    border-color: var(--accent-gold);
}

.tech-feature h4 {
    font-size: 18px;
    margin-bottom: 8px;
    font-family: var(--font-body);
    font-weight: 600;
}

.tech-feature p {
    font-size: 14px;
    color: var(--text-secondary);
}

.tech-advantages {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}

.tech-advantage {
    background: var(--bg-primary);
    border: 1px solid var(--border-subtle);
    border-radius: 8px;
    padding: 32px 24px;
    text-align: center;
}

.tech-advantage-icon {
    width: 56px;
    height: 56px;
    margin: 0 auto 20px;
    background: rgba(201, 169, 98, 0.1);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
}

.tech-advantage-icon svg {
    width: 24px;
    height: 24px;
    color: var(--accent-gold);
}

.tech-advantage h4 {
    font-size: 18px;
    margin-bottom: 8px;
    font-family: var(--font-body);
    font-weight: 600;
}

.tech-advantage p {
    font-size: 14px;
    color: var(--text-secondary);
}

/* Apply Page */
.apply-container {
    max-width: 700px;
    margin: 0 auto;
}

.apply-form-wrapper {
    background: var(--bg-secondary);
    border: 1px solid var(--border-subtle);
    border-radius: 8px;
    padding: 48px;
}

.apply-form .form-group {
    margin-bottom: 28px;
}

.apply-form label {
    display: block;
    font-size: 14px;
    font-weight: 500;
    margin-bottom: 8px;
    color: var(--text-secondary);
}

.apply-form input,
.apply-form textarea,
.apply-form select {
    width: 100%;
    padding: 16px;
    background: var(--bg-primary);
    border: 1px solid var(--border-subtle);
    border-radius: 4px;
    color: var(--text-primary);
    font-family: var(--font-body);
    font-size: 15px;
    transition: border-color 0.3s ease;
}

.apply-form input:focus,
.apply-form textarea:focus,
.apply-form select:focus {
    outline: none;
    border-color: var(--accent-gold);
}

.apply-form textarea {
    min-height: 150px;
    resize: vertical;
}

.apply-form select {
    cursor: pointer;
}

.success-message {
    display: none;
    text-align: center;
    padding: 60px 40px;
    background: var(--bg-secondary);
    border: 1px solid var(--accent-gold);
    border-radius: 8px;
}

.success-message.show {
    display: block;
    animation: fadeInUp 0.5s ease;
}

.success-icon {
    width: 80px;
    height: 80px;
    margin: 0 auto 24px;
    background: rgba(201, 169, 98, 0.1);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
}

.success-icon svg {
    width: 40px;
    height: 40px;
    color: var(--accent-gold);
}

.success-message h3 {
    font-size: 28px;
    margin-bottom: 12px;
}

.success-message p {
    color: var(--text-secondary);
}

/* Contact Page */
.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 80px;
}

.company-intro h2 {
    font-size: 40px;
    margin-bottom: 24px;
}

.company-intro p {
    color: var(--text-secondary);
    font-size: 16px;
    margin-bottom: 20px;
}

.company-intro h3 {
    font-size: 24px;
    margin: 40px 0 20px;
}

.company-timeline {
    list-style: none;
}

.company-timeline li {
    display: flex;
    gap: 24px;
    padding: 16px 0;
    border-bottom: 1px solid var(--border-subtle);
}

.timeline-year {
    font-size: 18px;
    font-weight: 600;
    color: var(--accent-gold);
    width: 80px;
    flex-shrink: 0;
}

.timeline-content {
    font-size: 15px;
    color: var(--text-secondary);
}

.contact-methods {
    background: var(--bg-secondary);
    border: 1px solid var(--border-subtle);
    border-radius: 8px;
    padding: 40px;
}

.contact-methods h3 {
    font-size: 24px;
    margin-bottom: 32px;
}

.contact-method-item {
    display: flex;
    align-items: center;
    gap: 16px;
    padding: 20px 0;
    border-bottom: 1px solid var(--border-subtle);
}

.contact-method-item:last-child {
    border-bottom: none;
}

.method-icon {
    width: 48px;
    height: 48px;
    background: rgba(201, 169, 98, 0.1);
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.method-icon svg {
    width: 24px;
    height: 24px;
    color: var(--accent-gold);
}

.method-info h4 {
    font-size: 16px;
    font-family: var(--font-body);
    font-weight: 600;
    margin-bottom: 4px;
}

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

.wechat-section {
    margin-top: 40px;
    text-align: center;
}

.wechat-section h4 {
    font-size: 20px;
    margin-bottom: 20px;
    font-family: var(--font-body);
}

.wechat-qr {
    width: 180px;
    height: 180px;
    background: var(--bg-primary);
    border: 1px solid var(--border-subtle);
    border-radius: 8px;
    margin: 0 auto 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-secondary);
    font-size: 14px;
}

.join-wechat-btn {
    padding: 14px 32px;
    background: var(--accent-gold);
    color: var(--bg-primary);
    border: none;
    border-radius: 4px;
    font-family: var(--font-body);
    font-size: 15px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
}

.join-wechat-btn:hover {
    background: var(--accent-gold-light);
    transform: translateY(-2px);
}

/* Animation Classes */
.fade-in {
    opacity: 0;
    transform: translateY(30px);
    transition: all 0.8s ease;
}

.fade-in.visible {
    opacity: 1;
    transform: translateY(0);
}

/* Responsive */
@media (max-width: 1024px) {
    .hero-title {
        font-size: 56px;
    }

    .section-title {
        font-size: 40px;
    }

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

    .about-grid,
    .contact-wrapper,
    .contact-grid,
    .solutions-grid
    .tech-advantages {
        grid-template-columns: 1fr;
        gap: 48px;
    }

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

    .expert-card-container {
        width: 280px;
        height: 400px;
    }
}

@media (max-width: 768px) {
    .nav-links,
    .nav .btn {
        display: none;
    }

    .menu-toggle {
        display: flex;
    }

    .hero-title {
        font-size: 42px;
    }

    .hero-subtitle {
        font-size: 17px;
    }

    .hero-buttons {
        flex-direction: column;
    }

    section {
        padding: 80px 0;
    }

    .section-title {
        font-size: 32px;
    }

    .services-grid,
    .why-grid,
    .stats-grid {
        grid-template-columns: 1fr;
    }

    .stat-number {
        font-size: 40px;
    }

    .about-features {
        grid-template-columns: 1fr;
    }

    .contact-form {
        padding: 32px 24px;
    }

    .footer-content {
        grid-template-columns: 1fr;
        gap: 40px;
    }

    .footer-bottom {
        flex-direction: column;
        gap: 16px;
        text-align: center;
    }

    .page-header h1 {
        font-size: 40px;
    }

    .page-header p {
        font-size: 16px;
    }

    .expert-card-container {
        width: 100%;
        max-width: 320px;
        height: 380px;
    }

    .solution-meta {
        flex-direction: column;
        gap: 16px;
    }

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

    .apply-form-wrapper {
        padding: 32px 24px;
    }
}

/* Solution Module Styles */
.solution-header {
    background: linear-gradient(135deg, var(--bg-primary) 0%, var(--bg-secondary) 100%);
    padding: 140px 0 80px;
    text-align: center;
}

.solution-overview {
    padding: 80px 0;
    background: var(--bg-secondary);
}

.overview-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}

.overview-content h2 {
    font-size: 36px;
    margin-bottom: 24px;
}

.overview-content p {
    font-size: 17px;
    color: var(--text-secondary);
    margin-bottom: 32px;
    line-height: 1.8;
}

.overview-stats {
    display: flex;
    gap: 40px;
    margin-top: 40px;
}

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

.overview-stat .stat-number {
    font-family: var(--font-display);
    font-size: 48px;
    font-weight: 700;
    color: var(--accent-gold);
    display: block;
}

.overview-stat .stat-label {
    font-size: 14px;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 1px;
}

.overview-image img {
    width: 100%;
    border-radius: 12px;
    border: 1px solid var(--border-subtle);
}

.solution-module {
    padding: 100px 0;
    background: var(--bg-primary);
}

.solution-module.module-reverse .module-content {
    flex-direction: row-reverse;
}

.module-header {
    margin-bottom: 48px;
}

.module-number {
    font-family: var(--font-display);
    font-size: 72px;
    font-weight: 700;
    color: var(--accent-gold);
    opacity: 0.3;
    display: block;
    margin-bottom: 8px;
}

.module-header h3 {
    font-size: 32px;
}

.module-content {
    display: flex;
    gap: 60px;
    align-items: center;
}

.module-image {
    flex: 1;
}

.module-image img {
    width: 100%;
    border-radius: 12px;
    border: 1px solid var(--border-subtle);
}

.module-description {
    flex: 1;
}

.module-description h4 {
    font-size: 24px;
    margin-bottom: 16px;
    font-family: var(--font-body);
}

.module-description p {
    color: var(--text-secondary);
    margin-bottom: 24px;
    line-height: 1.8;
}

.module-features {
    list-style: none;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
}

.module-features li {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 14px;
}

.module-features svg {
    width: 18px;
    height: 18px;
    color: var(--accent-gold);
    flex-shrink: 0;
}

/* Expert Recommendation */
.expert-recommendation {
    padding: 100px 0;
    background: var(--bg-secondary);
}

.expert-carousel {
    margin-top: 48px;
}

.expert-cards {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 32px;
}

.expert-card {
    background: var(--bg-primary);
    border: 1px solid var(--border-subtle);
    border-radius: 12px;
    overflow: hidden;
    height: 400px;
    position: relative;
    cursor: pointer;
    transform-style: preserve-3d;
    transition: transform 0.6s ease;
}

.expert-card:hover {
    transform: rotateY(180deg);
}

.expert-front,
.expert-back {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    padding: 32px;
    backface-visibility: hidden;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    text-align: center;
}

.expert-front {
    background: var(--bg-primary);
}

.expert-back {
    background: var(--bg-secondary);
    transform: rotateY(180deg);
}

.expert-card img {
    width: 100px;
    height: 100px;
    border-radius: 50%;
    object-fit: cover;
    margin-bottom: 20px;
    border: 3px solid var(--accent-gold);
}

.expert-card h4 {
    font-size: 24px;
    margin-bottom: 8px;
}

.expert-title {
    font-size: 14px;
    color: var(--accent-gold);
    margin-bottom: 8px;
}

.expert-field {
    font-size: 13px;
    color: var(--text-secondary);
}

.expert-back h4 {
    margin-bottom: 20px;
}

.expert-back ul {
    list-style: none;
    text-align: left;
    margin-bottom: 24px;
}

.expert-back li {
    padding: 8px 0;
    border-bottom: 1px solid var(--border-subtle);
    font-size: 14px;
    color: var(--text-secondary);
}

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

/* CTA Section */
.cta-section {
    padding: 80px 0;
    background: linear-gradient(135deg, var(--bg-secondary) 0%, var(--bg-primary) 100%);
    text-align: center;
}

.cta-content h2 {
    font-size: 36px;
    margin-bottom: 16px;
}

.cta-content p {
    color: var(--text-secondary);
    margin-bottom: 32px;
}

.cta-buttons {
    display: flex;
    gap: 16px;
    justify-content: center;
}

/* Initiative Section */
.initiative-section {
    padding: 100px 0;
    background: var(--bg-secondary);
}

.initiative-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
    margin-top: 48px;
}

.initiative-image img {
    width: 100%;
    border-radius: 12px;
    border: 1px solid var(--border-subtle);
}

.initiative-quadrants {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 24px;
}

.quadrant {
    background: var(--bg-primary);
    border: 1px solid var(--border-subtle);
    padding: 32px;
    border-radius: 12px;
    transition: all 0.3s ease;
}

.quadrant:hover {
    border-color: var(--accent-gold);
    transform: translateY(-4px);
}

.quadrant-number {
    font-family: var(--font-display);
    font-size: 36px;
    font-weight: 700;
    color: var(--accent-gold);
    opacity: 0.5;
    display: block;
    margin-bottom: 8px;
}

.quadrant h4 {
    font-size: 20px;
    margin-bottom: 12px;
    font-family: var(--font-body);
}

.quadrant p {
    font-size: 14px;
    color: var(--text-secondary);
    line-height: 1.6;
}

/* Expert Network Section */
.expert-network-section {
    padding: 100px 0;
    background: var(--bg-primary);
}

.expert-features-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 32px;
    margin-top: 48px;
}

.expert-feature-card {
    background: var(--bg-secondary);
    border: 1px solid var(--border-subtle);
    padding: 32px;
    border-radius: 12px;
    text-align: center;
    transition: all 0.3s ease;
}

.expert-feature-card:hover {
    border-color: var(--accent-gold);
    transform: translateY(-4px);
}

.feature-icon {
    width: 64px;
    height: 64px;
    margin: 0 auto 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--bg-primary);
    border-radius: 50%;
}

.feature-icon svg {
    width: 32px;
    height: 32px;
    color: var(--accent-gold);
}

.expert-feature-card h4 {
    font-size: 18px;
    margin-bottom: 12px;
    font-family: var(--font-body);
}

.expert-feature-card p {
    font-size: 14px;
    color: var(--text-secondary);
    line-height: 1.6;
}

.section-action {
    text-align: center;
    margin-top: 48px;
}