/* 全局样式 */
:root {
    --primary-color: #1a365d;
    --secondary-color: #e67e22;
    --bg-color: #f8f9fa;
    --text-color: #2d3748;
    --white: #ffffff;
    --gray: #718096;
    --light-gray: #e2e8f0;
    --shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px rgba(0, 0, 0, 0.1);
    --transition: all 0.3s ease;
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', sans-serif;
    color: var(--text-color);
    line-height: 1.6;
    overflow-x: hidden;
}

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

/* 导航栏 */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: rgba(26, 54, 93, 0.9);
    backdrop-filter: blur(10px);
    transition: var(--transition);
}

.navbar.scrolled {
    background: var(--primary-color);
    box-shadow: var(--shadow);
}

.navbar .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 70px;
}

.nav-brand {
    display: flex;
    align-items: center;
    gap: 10px;
    color: var(--white);
    font-size: 1.25rem;
    font-weight: 600;
}

.brand-icon {
    width: 40px;
    height: 40px;
    border-radius: 8px;
    object-fit: contain;
    vertical-align: middle;
    background: transparent;
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 30px;
}

.nav-link {
    color: rgba(255, 255, 255, 0.8);
    text-decoration: none;
    font-size: 0.95rem;
    transition: var(--transition);
    position: relative;
}

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

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

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

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

.nav-toggle span {
    width: 25px;
    height: 3px;
    background: var(--white);
    transition: var(--transition);
}

/* 首页横幅 */
.hero {
    position: relative;
    height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    color: var(--white);
}

.hero-bg {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, #0d2847 0%, #1a365d 40%, #2c5282 70%, #c05621 100%);
    z-index: -2;
}

.hero-bg::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-image:
        linear-gradient(45deg, rgba(255, 255, 255, 0.03) 1px, transparent 1px),
        linear-gradient(-45deg, rgba(255, 255, 255, 0.03) 1px, transparent 1px),
        linear-gradient(45deg, transparent 20px, rgba(255, 255, 255, 0.02) 21px, rgba(255, 255, 255, 0.02) 22px, transparent 23px);
    background-size: 40px 40px, 40px 40px, 80px 80px;
    opacity: 0.6;
}

.hero-bg::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background:
        radial-gradient(circle at 15% 30%, rgba(255, 152, 0, 0.15) 0%, transparent 40%),
        radial-gradient(circle at 85% 70%, rgba(33, 150, 243, 0.15) 0%, transparent 40%);
}

.hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(13, 40, 71, 0.35);
    z-index: -1;
}

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

.hero-title {
    font-size: 3.5rem;
    font-weight: 700;
    margin-bottom: 20px;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.3);
}

.hero-subtitle {
    font-size: 1.5rem;
    margin-bottom: 40px;
    opacity: 0.9;
}

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

.btn {
    display: inline-block;
    padding: 15px 40px;
    border-radius: 50px;
    text-decoration: none;
    font-size: 1rem;
    font-weight: 600;
    transition: var(--transition);
    cursor: pointer;
}

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

.btn-primary:hover {
    background: #d35400;
    border-color: #d35400;
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

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

.btn-outline:hover {
    background: var(--white);
    color: var(--primary-color);
    transform: translateY(-2px);
}

.hero-scroll {
    position: absolute;
    bottom: 30px;
    left: 50%;
    transform: translateX(-50%);
    text-align: center;
    color: var(--white);
    opacity: 0.7;
    animation: bounce 2s infinite;
}

.scroll-arrow {
    width: 20px;
    height: 20px;
    border-right: 2px solid var(--white);
    border-bottom: 2px solid var(--white);
    transform: rotate(45deg);
    margin: 10px auto 0;
}

@keyframes bounce {
    0%, 20%, 50%, 80%, 100% { transform: translateX(-50%) translateY(0); }
    40% { transform: translateX(-50%) translateY(-10px); }
    60% { transform: translateX(-50%) translateY(-5px); }
}

/* 通用区块样式 */
section {
    padding: 100px 0;
}

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

.section-title {
    font-size: 2.5rem;
    color: var(--primary-color);
    margin-bottom: 15px;
}

.section-subtitle {
    font-size: 1.1rem;
    color: var(--gray);
}

/* 平台优势 */
.advantages {
    background: var(--bg-color);
}

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

.advantage-card {
    background: var(--white);
    padding: 40px 30px;
    border-radius: 15px;
    text-align: center;
    box-shadow: var(--shadow);
    transition: var(--transition);
}

.advantage-card:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-lg);
}

.advantage-icon {
    width: 80px;
    height: 80px;
    margin: 0 auto 20px;
    border-radius: 50%;
    overflow: hidden;
    background: var(--bg-color);
    display: flex;
    align-items: center;
    justify-content: center;
}

.advantage-icon img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.advantage-title {
    font-size: 1.25rem;
    color: var(--primary-color);
    margin-bottom: 15px;
}

.advantage-desc {
    color: var(--gray);
    font-size: 0.95rem;
}

/* 服务流程 */
.process {
    position: relative;
    background: var(--primary-color);
    color: var(--white);
}

.process-bg {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('../images/process-bg.jpg') center/cover no-repeat;
    opacity: 0.1;
    z-index: 0;
}

.process .container {
    position: relative;
    z-index: 1;
}

.process .section-title {
    color: var(--white);
}

.process .section-subtitle {
    color: rgba(255, 255, 255, 0.7);
}

.process-timeline {
    display: flex;
    justify-content: space-between;
    position: relative;
}

.process-timeline::before {
    content: '';
    position: absolute;
    top: 40px;
    left: 10%;
    right: 10%;
    height: 3px;
    background: rgba(255, 255, 255, 0.3);
}

.process-step {
    text-align: center;
    flex: 1;
    position: relative;
}

.step-number {
    font-size: 3rem;
    font-weight: 700;
    color: var(--secondary-color);
    opacity: 0.5;
    margin-bottom: 10px;
}

.step-icon {
    font-size: 2.5rem;
    margin-bottom: 15px;
}

.step-title {
    font-size: 1.25rem;
    margin-bottom: 10px;
}

.step-desc {
    font-size: 0.9rem;
    opacity: 0.8;
    max-width: 200px;
    margin: 0 auto;
}

/* 师傅团队 */
.team {
    position: relative;
    background: var(--bg-color);
}

.team-bg {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('../images/team-bg.jpg') center/cover no-repeat;
    opacity: 0.05;
    z-index: 0;
}

.team .container {
    position: relative;
    z-index: 1;
}

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

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

.team-stat-item {
    text-align: center;
    padding: 30px;
    background: var(--white);
    border-radius: 15px;
    box-shadow: var(--shadow);
}

.stat-number {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--secondary-color);
    margin-bottom: 10px;
}

.stat-label {
    color: var(--gray);
    font-size: 0.9rem;
}

.team-features {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
}

.feature-item {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 15px;
    background: var(--white);
    border-radius: 10px;
    box-shadow: var(--shadow);
}

.feature-icon {
    color: var(--secondary-color);
    font-weight: 700;
    font-size: 1.2rem;
}

.feature-text {
    color: var(--text-color);
}

/* 数据展示 */
.stats {
    position: relative;
    background: var(--primary-color);
    color: var(--white);
}

.stats-bg {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('../images/stats-bg.jpg') center/cover no-repeat;
    opacity: 0.2;
    z-index: 0;
}

.stats .container {
    position: relative;
    z-index: 1;
}

.stats .section-title {
    color: var(--white);
}

.stats .section-subtitle {
    color: rgba(255, 255, 255, 0.7);
}

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

.stat-card {
    text-align: center;
    padding: 40px 20px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 15px;
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.2);
}

.stat-card .stat-number {
    font-size: 3rem;
    color: var(--white);
}

.stat-card .stat-label {
    color: rgba(255, 255, 255, 0.8);
    font-size: 1rem;
}

/* 商家案例 */
.testimonials {
    background: var(--bg-color);
}

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

.testimonial-card {
    background: var(--white);
    padding: 30px;
    border-radius: 15px;
    box-shadow: var(--shadow);
    transition: var(--transition);
}

.testimonial-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
}

.testimonial-content {
    margin-bottom: 20px;
}

.testimonial-text {
    color: var(--text-color);
    font-style: italic;
    line-height: 1.8;
}

.testimonial-author {
    display: flex;
    align-items: center;
    gap: 15px;
}

.author-avatar {
    width: 50px;
    height: 50px;
    border-radius: 50%;
    background: var(--secondary-color);
    color: var(--white);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.2rem;
    font-weight: 600;
}

.author-info {
    flex: 1;
}

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

.author-role {
    font-size: 0.85rem;
    color: var(--gray);
}

.author-rating {
    color: #f39c12;
    font-size: 0.9rem;
}

/* 联系我们 */
.contact {
    position: relative;
    background: var(--primary-color);
    color: var(--white);
}

.contact-bg {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('../images/contact-bg.jpg') center/cover no-repeat;
    opacity: 0.1;
    z-index: 0;
}

.contact .container {
    position: relative;
    z-index: 1;
}

.contact .section-title {
    color: var(--white);
}

.contact .section-subtitle {
    color: rgba(255, 255, 255, 0.7);
}

.contact-content {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 60px;
    align-items: center;
}

.contact-info {
    display: grid;
    gap: 30px;
}

.contact-item {
    display: flex;
    align-items: center;
    gap: 20px;
}

.contact-icon {
    font-size: 2rem;
    width: 60px;
    height: 60px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
}

.contact-detail h4 {
    font-size: 1.1rem;
    margin-bottom: 5px;
}

.contact-detail p {
    color: rgba(255, 255, 255, 0.7);
}

.contact-detail a {
    color: rgba(255, 255, 255, 0.9);
    text-decoration: none;
    transition: color 0.3s;
}

.contact-detail a:hover {
    color: var(--primary-color);
    text-decoration: underline;
}

.contact-qr {
    text-align: center;
}

.qr-code {
    width: 200px;
    height: 200px;
    background: var(--white);
    border-radius: 15px;
    margin: 0 auto 20px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.qr-image {
    width: 180px;
    height: 180px;
    border-radius: 10px;
    object-fit: contain;
    display: block;
}

.qr-text {
    color: rgba(255, 255, 255, 0.7);
}

/* 页脚 */
.footer {
    background: #0d1b2a;
    color: var(--white);
    padding: 40px 0 20px;
}

.footer-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 30px;
    padding-bottom: 30px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.footer-brand {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 1.25rem;
    font-weight: 600;
}

.footer-links {
    display: flex;
    gap: 30px;
}

.footer-links a {
    color: rgba(255, 255, 255, 0.7);
    text-decoration: none;
    transition: var(--transition);
}

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

.footer-bottom {
    text-align: center;
    color: rgba(255, 255, 255, 0.5);
    font-size: 0.9rem;
}

.footer-bottom p {
    margin: 5px 0;
}

/* 响应式设计 */
@media (max-width: 1024px) {
    .advantages-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .stats-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .testimonials-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .nav-menu {
        position: fixed;
        top: 70px;
        left: 0;
        right: 0;
        background: var(--primary-color);
        flex-direction: column;
        padding: 20px;
        gap: 15px;
        transform: translateY(-100%);
        opacity: 0;
        transition: var(--transition);
    }
    
    .nav-menu.active {
        transform: translateY(0);
        opacity: 1;
    }
    
    .nav-toggle {
        display: flex;
    }
    
    .hero-title {
        font-size: 2.5rem;
    }
    
    .hero-subtitle {
        font-size: 1.2rem;
    }
    
    .hero-buttons {
        flex-direction: column;
        align-items: center;
    }
    
    .advantages-grid {
        grid-template-columns: 1fr;
    }
    
    .process-timeline {
        flex-direction: column;
        gap: 40px;
    }
    
    .process-timeline::before {
        display: none;
    }
    
    .team-content {
        grid-template-columns: 1fr;
    }
    
    .stats-grid {
        grid-template-columns: 1fr;
    }
    
    .testimonials-grid {
        grid-template-columns: 1fr;
    }
    
    .contact-content {
        grid-template-columns: 1fr;
    }
    
    .footer-content {
        flex-direction: column;
        gap: 20px;
        text-align: center;
    }
    
    .footer-links {
        flex-wrap: wrap;
        justify-content: center;
    }
}

@media (max-width: 480px) {
    .hero-title {
        font-size: 2rem;
    }
    
    .section-title {
        font-size: 2rem;
    }
    
    .team-stats {
        grid-template-columns: 1fr;
    }
    
    .team-features {
        grid-template-columns: 1fr;
    }
}