/* ========== 全局样式 ========== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --primary-color: #1a56db;
    --primary-dark: #1e40af;
    --secondary-color: #f59e0b;
    --accent-color: #10b981;
    --dark-color: #1f2937;
    --gray-50: #f9fafb;
    --gray-100: #f3f4f6;
    --gray-200: #e5e7eb;
    --gray-300: #d1d5db;
    --gray-600: #4b5563;
    --gray-700: #374151;
    --gray-800: #1f2937;
    --white: #ffffff;
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --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);
    --transition: all 0.3s ease;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', sans-serif;
    line-height: 1.6;
    color: var(--gray-800);
    background-color: var(--white);
}

a {
    text-decoration: none;
    color: inherit;
}

ul {
    list-style: none;
}

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

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

/* ========== 导航栏 ========== */
.navbar {
    background: var(--white);
    box-shadow: var(--shadow-sm);
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    transition: var(--transition);
}

.navbar.scrolled {
    box-shadow: var(--shadow-md);
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 72px;
}

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

.logo-icon {
    width: 42px;
    height: 42px;
    background: linear-gradient(135deg, var(--primary-color), var(--primary-dark));
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--white);
    font-weight: 700;
    font-size: 18px;
    overflow: hidden;
    flex-shrink: 0;
}

.logo-icon img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
}

.logo-text {
    font-size: 20px;
    font-weight: 700;
    color: var(--gray-800);
}

.logo-text span {
    color: var(--primary-color);
}

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

.nav-link {
    color: var(--gray-700);
    font-weight: 500;
    font-size: 15px;
    transition: var(--transition);
    position: relative;
}

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

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

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

.nav-cta {
    background: linear-gradient(135deg, var(--primary-color), var(--primary-dark));
    color: var(--white);
    padding: 10px 24px;
    border-radius: 8px;
    font-weight: 500;
    transition: var(--transition);
}

.nav-cta:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

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

.mobile-toggle span {
    width: 25px;
    height: 3px;
    background: var(--gray-800);
    border-radius: 2px;
    transition: var(--transition);
}

/* ========== Hero 区域 ========== */
.hero {
    margin-top: 72px;
    padding: 80px 0;
    background: linear-gradient(135deg, #f0f7ff 0%, #e0ecff 50%, #f0f9ff 100%);
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -20%;
    width: 600px;
    height: 600px;
    background: radial-gradient(circle, rgba(26, 86, 219, 0.1) 0%, transparent 70%);
    border-radius: 50%;
}

.hero::after {
    content: '';
    position: absolute;
    bottom: -30%;
    left: -10%;
    width: 400px;
    height: 400px;
    background: radial-gradient(circle, rgba(16, 185, 129, 0.1) 0%, transparent 70%);
    border-radius: 50%;
}

.hero-container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
    position: relative;
    z-index: 1;
}

.hero-content h1 {
    font-size: 48px;
    font-weight: 800;
    line-height: 1.2;
    margin-bottom: 20px;
    color: var(--gray-800);
}

.hero-content h1 span {
    background: linear-gradient(135deg, var(--primary-color), var(--accent-color));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-subtitle {
    font-size: 18px;
    color: var(--gray-600);
    margin-bottom: 30px;
    line-height: 1.8;
}

.hero-buttons {
    display: flex;
    gap: 16px;
    flex-wrap: wrap;
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary-color), var(--primary-dark));
    color: var(--white);
    padding: 14px 32px;
    border-radius: 10px;
    font-weight: 600;
    font-size: 16px;
    transition: var(--transition);
    display: inline-flex;
    align-items: center;
    gap: 8px;
    border: none;
    cursor: pointer;
}

.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 15px 30px rgba(26, 86, 219, 0.3);
}

.btn-secondary {
    background: var(--white);
    color: var(--primary-color);
    padding: 14px 32px;
    border-radius: 10px;
    font-weight: 600;
    font-size: 16px;
    transition: var(--transition);
    display: inline-flex;
    align-items: center;
    gap: 8px;
    border: 2px solid var(--primary-color);
}

.btn-secondary:hover {
    background: var(--primary-color);
    color: var(--white);
    transform: translateY(-3px);
}

.hero-stats {
    display: flex;
    gap: 40px;
    margin-top: 50px;
}

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

.stat-number {
    font-size: 36px;
    font-weight: 800;
    color: var(--primary-color);
    display: block;
}

.stat-label {
    font-size: 14px;
    color: var(--gray-600);
    margin-top: 5px;
}

.hero-image {
    position: relative;
}

.hero-image-wrapper {
    position: relative;
    border-radius: 20px;
    overflow: hidden;
    box-shadow: var(--shadow-xl);
}

.hero-image-wrapper img {
    width: 100%;
    height: 450px;
    object-fit: cover;
    display: block;
}

.hero-badge {
    position: absolute;
    bottom: 30px;
    left: -20px;
    background: var(--white);
    padding: 20px 24px;
    border-radius: 15px;
    box-shadow: var(--shadow-lg);
    display: flex;
    align-items: center;
    gap: 15px;
}

.badge-icon {
    width: 50px;
    height: 50px;
    background: linear-gradient(135deg, var(--accent-color), #059669);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--white);
    font-size: 24px;
}

.badge-text {
    font-size: 14px;
    color: var(--gray-600);
}

.badge-text strong {
    display: block;
    font-size: 18px;
    color: var(--gray-800);
    margin-bottom: 3px;
}

/* ========== Section 通用样式 ========== */
.section {
    padding: 100px 0;
}

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

.section-tag {
    display: inline-block;
    padding: 6px 18px;
    background: rgba(26, 86, 219, 0.1);
    color: var(--primary-color);
    border-radius: 20px;
    font-size: 14px;
    font-weight: 600;
    margin-bottom: 16px;
}

.section-title {
    font-size: 40px;
    font-weight: 800;
    color: var(--gray-800);
    margin-bottom: 16px;
}

.section-subtitle {
    font-size: 18px;
    color: var(--gray-600);
    max-width: 650px;
    margin: 0 auto;
}

/* ========== 关于我们 区域 ========== */
.about-section {
    background: var(--white);
}

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

.about-image {
    position: relative;
}

.about-image-wrapper {
    border-radius: 20px;
    overflow: hidden;
    box-shadow: var(--shadow-xl);
}

.about-image-wrapper img {
    width: 100%;
    height: 500px;
    object-fit: cover;
    display: block;
}

.about-experience {
    position: absolute;
    top: 40px;
    right: -30px;
    background: linear-gradient(135deg, var(--secondary-color), #d97706);
    color: var(--white);
    width: 140px;
    height: 140px;
    border-radius: 20px;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    box-shadow: var(--shadow-lg);
}

.about-experience strong {
    font-size: 48px;
    font-weight: 800;
    line-height: 1;
}

.about-experience span {
    font-size: 14px;
    margin-top: 5px;
}

.about-content h2 {
    font-size: 36px;
    font-weight: 800;
    color: var(--gray-800);
    margin-bottom: 20px;
    line-height: 1.3;
}

.about-content > p {
    font-size: 16px;
    color: var(--gray-600);
    margin-bottom: 30px;
    line-height: 1.8;
}

.about-features {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
    margin-bottom: 35px;
}

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

.feature-icon {
    width: 40px;
    height: 40px;
    background: rgba(26, 86, 219, 0.1);
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--primary-color);
    font-size: 20px;
    flex-shrink: 0;
}

.about-feature h4 {
    font-size: 16px;
    font-weight: 700;
    color: var(--gray-800);
    margin-bottom: 4px;
}

.about-feature p {
    font-size: 14px;
    color: var(--gray-600);
}

/* ========== 服务区域 ========== */
.services-section {
    background: var(--gray-50);
}

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

.service-card {
    background: var(--white);
    border-radius: 20px;
    padding: 40px 30px;
    transition: var(--transition);
    border: 1px solid var(--gray-200);
    position: relative;
    overflow: hidden;
}

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

.service-card:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-xl);
    border-color: transparent;
}

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

.service-icon {
    width: 70px;
    height: 70px;
    border-radius: 18px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 32px;
    margin-bottom: 25px;
}

.service-icon.blue {
    background: linear-gradient(135deg, rgba(26, 86, 219, 0.15), rgba(26, 86, 219, 0.05));
    color: var(--primary-color);
}

.service-icon.green {
    background: linear-gradient(135deg, rgba(16, 185, 129, 0.15), rgba(16, 185, 129, 0.05));
    color: var(--accent-color);
}

.service-icon.orange {
    background: linear-gradient(135deg, rgba(245, 158, 11, 0.15), rgba(245, 158, 11, 0.05));
    color: var(--secondary-color);
}

.service-icon.purple {
    background: linear-gradient(135deg, rgba(139, 92, 246, 0.15), rgba(139, 92, 246, 0.05));
    color: #8b5cf6;
}

.service-icon.pink {
    background: linear-gradient(135deg, rgba(236, 72, 153, 0.15), rgba(236, 72, 153, 0.05));
    color: #ec4899;
}

.service-icon.cyan {
    background: linear-gradient(135deg, rgba(6, 182, 212, 0.15), rgba(6, 182, 212, 0.05));
    color: #06b6d4;
}

.service-card h3 {
    font-size: 22px;
    font-weight: 700;
    color: var(--gray-800);
    margin-bottom: 15px;
}

.service-card p {
    font-size: 15px;
    color: var(--gray-600);
    line-height: 1.7;
    margin-bottom: 20px;
}

.service-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.service-tag {
    padding: 4px 12px;
    background: var(--gray-100);
    color: var(--gray-600);
    border-radius: 6px;
    font-size: 13px;
}

.service-more {
    color: var(--primary-color);
    font-weight: 600;
    font-size: 15px;
    display: inline-flex;
    align-items: center;
    gap: 6px;
    margin-top: 15px;
}

.service-more:hover {
    gap: 10px;
}

/* ========== 优势区域 ========== */
.why-section {
    background: var(--white);
}

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

.why-card {
    text-align: center;
    padding: 40px 25px;
    border-radius: 20px;
    transition: var(--transition);
    border: 1px solid var(--gray-200);
}

.why-card:hover {
    background: linear-gradient(135deg, var(--primary-color), var(--primary-dark));
    color: var(--white);
    transform: translateY(-8px);
    box-shadow: var(--shadow-xl);
    border-color: transparent;
}

.why-icon {
    width: 80px;
    height: 80px;
    margin: 0 auto 25px;
    background: linear-gradient(135deg, rgba(26, 86, 219, 0.1), rgba(26, 86, 219, 0.05));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 36px;
    color: var(--primary-color);
    transition: var(--transition);
}

.why-card:hover .why-icon {
    background: rgba(255, 255, 255, 0.2);
    color: var(--white);
}

.why-card h4 {
    font-size: 20px;
    font-weight: 700;
    margin-bottom: 12px;
}

.why-card p {
    font-size: 14px;
    line-height: 1.7;
    opacity: 0.9;
}

/* ========== 行动号召区域 ========== */
.cta-section {
    padding: 80px 0;
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-dark) 100%);
    position: relative;
    overflow: hidden;
}

.cta-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%23ffffff' fill-opacity='0.05'%3E%3Cpath d='M36 34v-4h-2v4h-4v2h4v4h2v-4h4v-2h-4zm0-30V0h-2v4h-4v2h4v4h2V6h4V4h-4zM6 34v-4H4v4H0v2h4v4h2v-4h4v-2H6zM6 4V0H4v4H0v2h4v4h2V6h4V4H6z'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");
}

.cta-container {
    position: relative;
    z-index: 1;
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 40px;
    flex-wrap: wrap;
}

.cta-content h3 {
    font-size: 36px;
    font-weight: 800;
    color: var(--white);
    margin-bottom: 12px;
}

.cta-content p {
    font-size: 18px;
    color: rgba(255, 255, 255, 0.9);
}

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

.cta-btn-primary {
    background: var(--white);
    color: var(--primary-color);
    padding: 14px 32px;
    border-radius: 10px;
    font-weight: 600;
    font-size: 16px;
    transition: var(--transition);
}

.cta-btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 15px 30px rgba(0, 0, 0, 0.2);
}

.cta-btn-secondary {
    background: rgba(255, 255, 255, 0.15);
    color: var(--white);
    padding: 14px 32px;
    border-radius: 10px;
    font-weight: 600;
    font-size: 16px;
    transition: var(--transition);
    border: 2px solid rgba(255, 255, 255, 0.3);
}

.cta-btn-secondary:hover {
    background: rgba(255, 255, 255, 0.25);
    transform: translateY(-3px);
}

/* ========== 联系区域 ========== */
.contact-section {
    background: var(--gray-50);
}

.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1.2fr;
    gap: 60px;
}

.contact-info h3 {
    font-size: 32px;
    font-weight: 800;
    color: var(--gray-800);
    margin-bottom: 20px;
}

.contact-info > p {
    font-size: 16px;
    color: var(--gray-600);
    margin-bottom: 40px;
    line-height: 1.8;
}

.contact-items {
    display: flex;
    flex-direction: column;
    gap: 25px;
}

.contact-item {
    display: flex;
    align-items: flex-start;
    gap: 18px;
}

.contact-item-icon {
    width: 50px;
    height: 50px;
    background: linear-gradient(135deg, var(--primary-color), var(--primary-dark));
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--white);
    font-size: 22px;
    flex-shrink: 0;
}

.contact-item h4 {
    font-size: 16px;
    font-weight: 700;
    color: var(--gray-800);
    margin-bottom: 6px;
}

.contact-item p,
.contact-item a {
    font-size: 15px;
    color: var(--gray-600);
    line-height: 1.6;
}

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

.contact-form {
    background: var(--white);
    padding: 40px;
    border-radius: 20px;
    box-shadow: var(--shadow-lg);
}

.form-title {
    font-size: 24px;
    font-weight: 700;
    color: var(--gray-800);
    margin-bottom: 8px;
}

.form-subtitle {
    font-size: 15px;
    color: var(--gray-600);
    margin-bottom: 30px;
}

.form-group {
    margin-bottom: 20px;
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
}

.form-label {
    display: block;
    font-size: 14px;
    font-weight: 600;
    color: var(--gray-700);
    margin-bottom: 8px;
}

.form-input,
.form-textarea,
.form-select {
    width: 100%;
    padding: 12px 16px;
    border: 1.5px solid var(--gray-300);
    border-radius: 10px;
    font-size: 15px;
    color: var(--gray-800);
    transition: var(--transition);
    font-family: inherit;
    background: var(--white);
}

.form-input:focus,
.form-textarea:focus,
.form-select:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 4px rgba(26, 86, 219, 0.1);
}

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

.form-submit {
    width: 100%;
    background: linear-gradient(135deg, var(--primary-color), var(--primary-dark));
    color: var(--white);
    padding: 14px 32px;
    border-radius: 10px;
    font-weight: 600;
    font-size: 16px;
    transition: var(--transition);
    border: none;
    cursor: pointer;
}

.form-submit:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 25px rgba(26, 86, 219, 0.3);
}

/* ========== 页脚 ========== */
.footer {
    background: var(--gray-800);
    color: var(--gray-300);
    padding: 70px 0 0;
}

.footer-grid {
    display: grid;
    grid-template-columns: 1.5fr 1fr 1fr 1.2fr;
    gap: 50px;
    margin-bottom: 50px;
}

.footer-brand h4 {
    font-size: 22px;
    font-weight: 700;
    color: var(--white);
    margin-bottom: 20px;
    display: flex;
    align-items: center;
    gap: 10px;
}

.footer-brand-logo {
    width: 36px;
    height: 36px;
    background: linear-gradient(135deg, var(--primary-color), var(--primary-dark));
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--white);
    font-weight: 700;
    font-size: 16px;
}

.footer-brand p {
    font-size: 15px;
    line-height: 1.8;
    margin-bottom: 25px;
}

.footer-social {
    display: flex;
    gap: 12px;
}

.social-link {
    width: 40px;
    height: 40px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition);
    color: var(--gray-300);
}

.social-link:hover {
    background: var(--primary-color);
    color: var(--white);
    transform: translateY(-3px);
}

.footer-col h5 {
    font-size: 17px;
    font-weight: 700;
    color: var(--white);
    margin-bottom: 25px;
}

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

.footer-links a {
    font-size: 15px;
    color: var(--gray-300);
    transition: var(--transition);
}

.footer-links a:hover {
    color: var(--white);
    padding-left: 5px;
}

.footer-contact-item {
    display: flex;
    align-items: flex-start;
    gap: 12px;
    margin-bottom: 18px;
}

.footer-contact-item svg {
    flex-shrink: 0;
    margin-top: 3px;
}

.footer-contact-item p {
    font-size: 14px;
    line-height: 1.7;
}

.footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    padding: 25px 0;
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 15px;
}

.footer-bottom p {
    font-size: 14px;
}

/* 备案号链接 */
.beian-link {
    font-size: 14px;
    color: var(--gray-300);
    transition: var(--transition);
    display: inline-block;
}

.beian-link:hover {
    color: var(--white);
    text-decoration: underline;
}

.footer-bottom-links {
    display: flex;
    gap: 25px;
}

.footer-bottom-links a {
    font-size: 14px;
    color: var(--gray-300);
    transition: var(--transition);
}

.footer-bottom-links a:hover {
    color: var(--white);
}

/* ========== 页面 Banner ========== */
.page-banner {
    margin-top: 72px;
    padding: 100px 0 80px;
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-dark) 100%);
    position: relative;
    overflow: hidden;
    text-align: center;
    color: var(--white);
}

.page-banner::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%23ffffff' fill-opacity='0.05'%3E%3Cpath d='M36 34v-4h-2v4h-4v2h4v4h2v-4h4v-2h-4zm0-30V0h-2v4h-4v2h4v4h2V6h4V4h-4zM6 34v-4H4v4H0v2h4v4h2v-4h4v-2H6zM6 4V0H4v4H0v2h4v4h2V6h4V4H6z'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");
}

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

.page-banner h1 {
    font-size: 44px;
    font-weight: 800;
    margin-bottom: 16px;
}

.page-banner p {
    font-size: 18px;
    opacity: 0.9;
    max-width: 600px;
    margin: 0 auto;
}

.breadcrumb {
    display: flex;
    justify-content: center;
    gap: 10px;
    margin-top: 25px;
    font-size: 15px;
}

.breadcrumb a {
    opacity: 0.8;
    transition: var(--transition);
}

.breadcrumb a:hover {
    opacity: 1;
}

.breadcrumb span {
    opacity: 0.6;
}

/* ========== 关于页面内容 ========== */
.about-page-intro {
    padding: 100px 0;
}

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

.intro-content h2 {
    font-size: 36px;
    font-weight: 800;
    color: var(--gray-800);
    margin-bottom: 25px;
    line-height: 1.3;
}

.intro-content p {
    font-size: 16px;
    color: var(--gray-600);
    margin-bottom: 20px;
    line-height: 1.9;
}

.intro-image {
    border-radius: 20px;
    overflow: hidden;
    box-shadow: var(--shadow-xl);
}

.intro-image img {
    width: 100%;
    height: 450px;
    object-fit: cover;
    display: block;
}

.mission-section {
    background: var(--gray-50);
    padding: 100px 0;
}

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

.mission-card {
    background: var(--white);
    padding: 45px 35px;
    border-radius: 20px;
    text-align: center;
    transition: var(--transition);
    box-shadow: var(--shadow-sm);
}

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

.mission-icon {
    width: 90px;
    height: 90px;
    margin: 0 auto 25px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 40px;
}

.mission-card h3 {
    font-size: 24px;
    font-weight: 700;
    color: var(--gray-800);
    margin-bottom: 15px;
}

.mission-card p {
    font-size: 15px;
    color: var(--gray-600);
    line-height: 1.8;
}

.team-section {
    padding: 100px 0;
}

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

.team-card {
    background: var(--white);
    border-radius: 20px;
    overflow: hidden;
    box-shadow: var(--shadow-md);
    transition: var(--transition);
    border: 1px solid var(--gray-200);
}

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

.team-image {
    height: 280px;
    background: linear-gradient(135deg, #e0ecff, #f0f9ff);
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    overflow: hidden;
}

.team-avatar {
    width: 140px;
    height: 140px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--primary-color), var(--accent-color));
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--white);
    font-size: 56px;
    font-weight: 700;
    box-shadow: var(--shadow-lg);
}

.team-info {
    padding: 25px 30px;
    text-align: center;
}

.team-info h4 {
    font-size: 22px;
    font-weight: 700;
    color: var(--gray-800);
    margin-bottom: 6px;
}

.team-role {
    font-size: 15px;
    color: var(--primary-color);
    font-weight: 600;
    margin-bottom: 15px;
}

.team-info p {
    font-size: 14px;
    color: var(--gray-600);
    line-height: 1.7;
}

/* ========== 服务页面 ========== */
.services-hero {
    padding: 100px 0;
}

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

.service-detail-card {
    background: var(--white);
    border-radius: 20px;
    padding: 40px;
    border: 1px solid var(--gray-200);
    transition: var(--transition);
    display: flex;
    gap: 25px;
}

.service-detail-card:hover {
    box-shadow: var(--shadow-xl);
    transform: translateY(-5px);
    border-color: transparent;
}

.service-detail-icon {
    width: 70px;
    height: 70px;
    border-radius: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 32px;
    flex-shrink: 0;
}

.service-detail-content h3 {
    font-size: 22px;
    font-weight: 700;
    color: var(--gray-800);
    margin-bottom: 12px;
}

.service-detail-content p {
    font-size: 15px;
    color: var(--gray-600);
    line-height: 1.8;
    margin-bottom: 15px;
}

.service-detail-list {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.service-detail-list span {
    padding: 5px 12px;
    background: var(--gray-100);
    color: var(--gray-700);
    border-radius: 6px;
    font-size: 13px;
}

.process-section {
    background: var(--gray-50);
    padding: 100px 0;
}

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

.process-step {
    background: var(--white);
    padding: 35px 25px;
    border-radius: 20px;
    text-align: center;
    position: relative;
    box-shadow: var(--shadow-sm);
}

.step-number {
    width: 50px;
    height: 50px;
    background: linear-gradient(135deg, var(--primary-color), var(--primary-dark));
    color: var(--white);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 22px;
    font-weight: 700;
    margin: 0 auto 20px;
}

.process-step h4 {
    font-size: 20px;
    font-weight: 700;
    color: var(--gray-800);
    margin-bottom: 12px;
}

.process-step p {
    font-size: 14px;
    color: var(--gray-600);
    line-height: 1.7;
}

/* ========== 联系页面 ========== */
.contact-page-section {
    padding: 100px 0;
}

.contact-info-cards {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
    margin-bottom: 60px;
}

.info-card {
    background: var(--white);
    padding: 35px 30px;
    border-radius: 20px;
    text-align: center;
    border: 1px solid var(--gray-200);
    transition: var(--transition);
}

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

.info-card-icon {
    width: 70px;
    height: 70px;
    margin: 0 auto 20px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 28px;
}

.info-card h4 {
    font-size: 20px;
    font-weight: 700;
    color: var(--gray-800);
    margin-bottom: 10px;
}

.info-card p,
.info-card a {
    font-size: 15px;
    color: var(--gray-600);
    line-height: 1.7;
}

.info-card a:hover {
    color: var(--primary-color);
}

.map-section {
    border-radius: 20px;
    overflow: hidden;
    box-shadow: var(--shadow-lg);
    height: 400px;
    background: var(--gray-100);
    margin-bottom: 60px;
}

.map-placeholder {
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, #e0ecff 0%, #f0f9ff 100%);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    color: var(--primary-color);
}

.map-placeholder svg {
    margin-bottom: 20px;
    opacity: 0.5;
}

.map-placeholder h4 {
    font-size: 24px;
    font-weight: 700;
    margin-bottom: 8px;
    color: var(--gray-800);
}

.map-placeholder p {
    font-size: 16px;
    color: var(--gray-600);
}

.faq-section {
    background: var(--gray-50);
    padding: 100px 0;
}

.faq-grid {
    max-width: 800px;
    margin: 0 auto;
}

.faq-item {
    background: var(--white);
    border-radius: 15px;
    margin-bottom: 15px;
    overflow: hidden;
    box-shadow: var(--shadow-sm);
}

.faq-question {
    padding: 25px 30px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    cursor: pointer;
    font-size: 17px;
    font-weight: 600;
    color: var(--gray-800);
    transition: var(--transition);
}

.faq-question:hover {
    background: var(--gray-50);
}

.faq-answer {
    padding: 0 30px 25px;
    font-size: 15px;
    color: var(--gray-600);
    line-height: 1.8;
    display: none;
}

.faq-item.active .faq-answer {
    display: block;
}

.faq-toggle {
    font-size: 24px;
    color: var(--primary-color);
    transition: var(--transition);
    font-weight: 300;
}

.faq-item.active .faq-toggle {
    transform: rotate(45deg);
}

/* ========== 返回顶部 ========== */
.back-to-top {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 50px;
    height: 50px;
    background: linear-gradient(135deg, var(--primary-color), var(--primary-dark));
    color: var(--white);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    opacity: 0;
    visibility: hidden;
    transition: var(--transition);
    box-shadow: var(--shadow-lg);
    z-index: 999;
    border: none;
}

.back-to-top.visible {
    opacity: 1;
    visibility: visible;
}

.back-to-top:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 30px rgba(26, 86, 219, 0.4);
}

/* ========== 响应式设计 ========== */
@media (max-width: 1024px) {
    .hero-content h1 {
        font-size: 40px;
    }

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

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

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

    .services-detail-grid,
    .mission-grid,
    .team-grid {
        grid-template-columns: 1fr 1fr;
    }
}

@media (max-width: 768px) {
    .nav-menu {
        display: none;
        position: absolute;
        top: 72px;
        left: 0;
        right: 0;
        background: var(--white);
        flex-direction: column;
        padding: 20px;
        gap: 20px;
        box-shadow: var(--shadow-md);
    }

    .nav-menu.active {
        display: flex;
    }

    .mobile-toggle {
        display: flex;
    }

    .hero {
        padding: 60px 0;
    }

    .hero-container,
    .about-grid,
    .contact-grid,
    .intro-grid {
        grid-template-columns: 1fr;
        gap: 40px;
    }

    .hero-content h1 {
        font-size: 32px;
    }

    .hero-stats {
        gap: 30px;
        flex-wrap: wrap;
    }

    .stat-number {
        font-size: 28px;
    }

    .section {
        padding: 70px 0;
    }

    .section-title {
        font-size: 30px;
    }

    .services-grid,
    .why-grid,
    .process-grid,
    .mission-grid,
    .team-grid,
    .contact-info-cards,
    .services-detail-grid {
        grid-template-columns: 1fr;
    }

    .form-row {
        grid-template-columns: 1fr;
        gap: 0;
    }

    .cta-container {
        flex-direction: column;
        text-align: center;
    }

    .cta-content h3 {
        font-size: 28px;
    }

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

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

    .page-banner h1 {
        font-size: 32px;
    }

    .hero-badge {
        left: 10px;
        bottom: 10px;
    }

    .about-experience {
        right: 10px;
        width: 100px;
        height: 100px;
    }

    .about-experience strong {
        font-size: 32px;
    }

    .about-content h2,
    .intro-content h2 {
        font-size: 28px;
    }

    .service-detail-card {
        flex-direction: column;
    }
}

/* ========== 动画 ========== */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.animate {
    opacity: 0;
    animation: fadeInUp 0.8s ease forwards;
}

.animate.delay-1 {
    animation-delay: 0.1s;
}

.animate.delay-2 {
    animation-delay: 0.2s;
}

.animate.delay-3 {
    animation-delay: 0.3s;
}

.animate.delay-4 {
    animation-delay: 0.4s;
}

.animate.delay-5 {
    animation-delay: 0.5s;
}

.animate.delay-6 {
    animation-delay: 0.6s;
}