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

/* 锚点跳转优化 */
section[id] {
    scroll-margin-top: 80px;
}

:root {
    --primary-color: #5589FE;
    --secondary-color: #4A7BF7;
    --accent-color: #FF6B6B;
    --text-dark: #2C3E50;
    --text-light: #7F8C8D;
    --bg-light: #F8F9FA;
    --bg-white: #FFFFFF;
    --shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 30px rgba(0, 0, 0, 0.15);
    --transition: all 0.3s ease;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'PingFang SC', 'Hiragino Sans GB', 
                 'Microsoft YaHei', 'Helvetica Neue', Helvetica, Arial, sans-serif;
    line-height: 1.6;
    color: var(--text-dark);
    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;
    background: transparent;
    z-index: 1000;
    transition: all 0.3s ease;
    padding: 1rem 0;
}

.navbar.scrolled {
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    box-shadow: 0 2px 20px rgba(0, 0, 0, 0.1);
    padding: 0.5rem 0;
}

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

.logo {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 1.5rem;
    font-weight: bold;
    color: white;
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.3);
    transition: all 0.3s ease;
}

.navbar.scrolled .logo {
    color: var(--primary-color);
    text-shadow: none;
}

.logo-img {
    width: 40px;
    height: 40px;
    object-fit: contain;
}

.logo i {
    font-size: 1.8rem;
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 2rem;
}

.nav-menu a {
    text-decoration: none;
    color: white;
    font-weight: 600;
    padding: 0.5rem 1rem;
    border-radius: 5px;
    transition: all 0.3s ease;
    position: relative;
    text-shadow: 0 1px 3px rgba(0, 0, 0, 0.3);
}

.navbar.scrolled .nav-menu a {
    color: var(--text-dark);
    text-shadow: none;
}

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

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

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

/* 导航栏免费试用按钮 */
.nav-trial-btn {
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color)) !important;
    color: white !important;
    padding: 0.5rem 1.5rem !important;
    border-radius: 25px !important;
    font-weight: 700 !important;
    box-shadow: 0 4px 15px rgba(85, 137, 254, 0.4) !important;
    transition: all 0.3s ease !important;
    text-shadow: none !important;
}

.nav-trial-btn:hover {
    background: linear-gradient(135deg, var(--secondary-color), var(--primary-color)) !important;
    transform: translateY(-2px) !important;
    box-shadow: 0 6px 20px rgba(85, 137, 254, 0.4) !important;
}

.nav-trial-btn::after {
    display: none !important;
}

.mobile-menu-toggle {
    display: none;
    background: none;
    border: none;
    font-size: 1.5rem;
    color: var(--primary-color);
    cursor: pointer;
}

/* 英雄区域 */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    overflow: hidden;
    padding-top: 80px;
}

.hero-background {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 50%, #f093fb 100%);
    opacity: 1;
    z-index: -1;
    animation: gradientShift 15s ease infinite;
}

@keyframes gradientShift {
    0% {
        background: linear-gradient(135deg, #667eea 0%, #764ba2 50%, #f093fb 100%);
    }
    25% {
        background: linear-gradient(135deg, #5589FE 0%, #667eea 50%, #764ba2 100%);
    }
    50% {
        background: linear-gradient(135deg, #764ba2 0%, #f093fb 50%, #667eea 100%);
    }
    75% {
        background: linear-gradient(135deg, #f093fb 0%, #5589FE 50%, #764ba2 100%);
    }
    100% {
        background: linear-gradient(135deg, #667eea 0%, #764ba2 50%, #f093fb 100%);
    }
}

.hero-background::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 1440 320"><path fill="%23ffffff" fill-opacity="0.1" d="M0,96L48,112C96,128,192,160,288,160C384,160,480,128,576,122.7C672,117,768,139,864,154.7C960,171,1056,181,1152,165.3C1248,149,1344,107,1392,85.3L1440,64L1440,320L1392,320C1344,320,1248,320,1152,320C1056,320,960,320,864,320C768,320,672,320,576,320C480,320,384,320,288,320C192,320,96,320,48,320L0,320Z"></path></svg>') no-repeat bottom;
    background-size: cover;
    animation: waveMove 20s ease-in-out infinite;
}

@keyframes waveMove {
    0%, 100% {
        transform: translateX(0) translateY(0);
    }
    50% {
        transform: translateX(-50px) translateY(-20px);
    }
}

.hero-background::after {
    content: '';
    position: absolute;
    width: 100%;
    height: 100%;
    background: radial-gradient(circle at 20% 50%, rgba(255, 255, 255, 0.1) 0%, transparent 50%),
                radial-gradient(circle at 80% 80%, rgba(255, 255, 255, 0.1) 0%, transparent 50%);
    animation: pulseGlow 8s ease-in-out infinite;
}

@keyframes pulseGlow {
    0%, 100% {
        opacity: 0.3;
    }
    50% {
        opacity: 0.6;
    }
}

/* 浮动装饰形状 */
.floating-shapes {
    position: absolute;
    width: 100%;
    height: 100%;
    overflow: hidden;
}

.shape {
    position: absolute;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 50%;
    animation: float 20s infinite ease-in-out;
}

.shape-1 {
    width: 80px;
    height: 80px;
    top: 10%;
    left: 10%;
    animation-delay: 0s;
    animation-duration: 15s;
}

.shape-2 {
    width: 120px;
    height: 120px;
    top: 60%;
    left: 80%;
    animation-delay: 2s;
    animation-duration: 18s;
}

.shape-3 {
    width: 60px;
    height: 60px;
    top: 30%;
    left: 70%;
    animation-delay: 4s;
    animation-duration: 12s;
}

.shape-4 {
    width: 100px;
    height: 100px;
    top: 70%;
    left: 20%;
    animation-delay: 1s;
    animation-duration: 16s;
}

.shape-5 {
    width: 90px;
    height: 90px;
    top: 20%;
    left: 50%;
    animation-delay: 3s;
    animation-duration: 14s;
}

.shape-6 {
    width: 70px;
    height: 70px;
    top: 80%;
    left: 60%;
    animation-delay: 5s;
    animation-duration: 20s;
}

@keyframes float {
    0%, 100% {
        transform: translateY(0) translateX(0) rotate(0deg);
        opacity: 0.3;
    }
    25% {
        transform: translateY(-30px) translateX(30px) rotate(90deg);
        opacity: 0.5;
    }
    50% {
        transform: translateY(-60px) translateX(-30px) rotate(180deg);
        opacity: 0.3;
    }
    75% {
        transform: translateY(-30px) translateX(-60px) rotate(270deg);
        opacity: 0.5;
    }
}

.hero-content {
    position: relative;
    z-index: 1;
    color: white;
    animation: fadeInUp 1s ease;
}

.hero-title {
    font-size: 5rem;
    font-weight: 900;
    margin-bottom: 1rem;
    text-shadow: 0 0 20px rgba(255, 255, 255, 0.5),
                 0 0 40px rgba(255, 255, 255, 0.3),
                 2px 2px 8px rgba(0, 0, 0, 0.3);
    letter-spacing: 2px;
    background: linear-gradient(45deg, #ffffff, #f0f0f0, #ffffff);
    background-size: 200% auto;
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    animation: textShine 3s ease-in-out infinite;
}

@keyframes textShine {
    0%, 100% {
        background-position: 0% center;
    }
    50% {
        background-position: 100% center;
    }
}

.hero-subtitle {
    font-size: 2.2rem;
    margin-bottom: 1rem;
    opacity: 0.95;
    font-weight: 600;
    text-shadow: 0 2px 10px rgba(0, 0, 0, 0.3);
    animation: fadeInUp 1s ease 0.3s both;
}

.hero-description {
    font-size: 1.3rem;
    margin-bottom: 2.5rem;
    opacity: 0.95;
    font-weight: 300;
    letter-spacing: 1px;
    text-shadow: 0 2px 8px rgba(0, 0, 0, 0.2);
    animation: fadeInUp 1s ease 0.6s both;
}

.hero-buttons {
    display: flex;
    gap: 1.5rem;
    justify-content: center;
    flex-wrap: wrap;
    animation: fadeInUp 1s ease 0.9s both;
}

.btn {
    padding: 1.2rem 2.5rem;
    border: none;
    border-radius: 50px;
    font-size: 1.1rem;
    font-weight: 700;
    text-decoration: none;
    cursor: pointer;
    transition: all 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    display: inline-block;
    position: relative;
    overflow: hidden;
    letter-spacing: 0.5px;
}

.btn::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.3);
    transform: translate(-50%, -50%);
    transition: width 0.6s, height 0.6s;
}

.btn:hover::before {
    width: 300px;
    height: 300px;
}

.btn-primary {
    background: white;
    color: var(--primary-color);
    box-shadow: 0 8px 20px rgba(0, 0, 0, 0.2);
}

.btn-primary:hover {
    transform: translateY(-5px) scale(1.05);
    box-shadow: 0 15px 35px rgba(0, 0, 0, 0.3);
}

.btn-secondary {
    background: transparent;
    color: white;
    border: 3px solid white;
    box-shadow: 0 8px 20px rgba(0, 0, 0, 0.15);
}

.btn-secondary:hover {
    background: white;
    color: var(--primary-color);
    transform: translateY(-5px) scale(1.05);
    box-shadow: 0 15px 35px rgba(255, 255, 255, 0.3);
}

.btn-trial {
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: white;
    border: none;
    box-shadow: 0 8px 25px rgba(85, 137, 254, 0.4);
}

.btn-trial:hover {
    background: linear-gradient(135deg, var(--secondary-color), var(--primary-color));
    transform: translateY(-5px) scale(1.05);
    box-shadow: 0 15px 40px rgba(85, 137, 254, 0.5);
}

.scroll-indicator {
    position: absolute;
    bottom: 2rem;
    left: 50%;
    transform: translateX(-50%);
    color: white;
    font-size: 2rem;
    animation: bounce 2s infinite;
}

/* 区块标题 */
.section-header {
    text-align: center;
    margin-bottom: 4rem;
}

.section-header h2 {
    font-size: 2.5rem;
    color: var(--text-dark);
    margin-bottom: 1rem;
    position: relative;
    display: inline-block;
}

.section-header h2::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 50%;
    transform: translateX(-50%);
    width: 60px;
    height: 4px;
    background: var(--primary-color);
    border-radius: 2px;
}

.section-header p {
    font-size: 1.1rem;
    color: var(--text-light);
    margin-top: 1.5rem;
}

/* 功能特色 */
.features {
    padding: 6rem 0;
    background: var(--bg-light);
}

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

@media (max-width: 968px) {
    .features-grid {
        grid-template-columns: 1fr;
    }
}

.feature-card {
    background: white;
    padding: 2rem;
    border-radius: 15px;
    box-shadow: var(--shadow);
    transition: var(--transition);
    animation: fadeIn 0.6s ease;
}

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

.feature-icon {
    width: 80px;
    height: 80px;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 1.5rem;
    font-size: 2rem;
    color: white;
}

.feature-card h3 {
    font-size: 1.5rem;
    margin-bottom: 1rem;
    color: var(--text-dark);
}

.feature-card > p {
    color: var(--text-light);
    margin-bottom: 1.5rem;
    line-height: 1.8;
}

.feature-list {
    list-style: none;
    padding-left: 0;
}

.feature-list li {
    padding: 0.5rem 0;
    color: var(--text-light);
    position: relative;
    padding-left: 1.5rem;
}

.feature-list li::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: var(--primary-color);
    font-weight: bold;
}

/* 服务场景 */
.services {
    padding: 6rem 0;
    background: white;
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
}

.service-card {
    text-align: center;
    padding: 2rem;
    border-radius: 15px;
    background: var(--bg-light);
    transition: var(--transition);
}

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

.service-image {
    width: 100px;
    height: 100px;
    margin: 0 auto 1.5rem;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 3rem;
    color: white;
}

.service-card h3 {
    font-size: 1.5rem;
    margin-bottom: 1rem;
    color: var(--text-dark);
}

.service-card p {
    color: var(--text-light);
    line-height: 1.8;
}

/* 平台优势 */
.advantages {
    padding: 6rem 0;
    background: var(--bg-light);
}

.advantages-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 2rem;
}

.advantage-item {
    background: white;
    padding: 2rem;
    border-radius: 15px;
    box-shadow: var(--shadow);
    position: relative;
    overflow: hidden;
    transition: var(--transition);
}

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

.advantage-number {
    position: absolute;
    top: -20px;
    right: 20px;
    font-size: 5rem;
    font-weight: bold;
    color: var(--primary-color);
    opacity: 0.1;
}

.advantage-item h3 {
    font-size: 1.5rem;
    margin-bottom: 1rem;
    color: var(--text-dark);
    position: relative;
    z-index: 1;
}

.advantage-item p {
    color: var(--text-light);
    line-height: 1.8;
    position: relative;
    z-index: 1;
}

/* 特色功能 */
.special-features {
    padding: 6rem 0;
    background: white;
}

.special-features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
}

.special-feature-item {
    background: var(--bg-light);
    padding: 2rem;
    border-radius: 12px;
    transition: var(--transition);
    text-align: center;
}

.special-feature-item:hover {
    background: white;
    box-shadow: var(--shadow-lg);
    transform: translateY(-5px);
}

.special-icon {
    width: 70px;
    height: 70px;
    margin: 0 auto 1.5rem;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2rem;
    color: white;
}

.special-feature-item h3 {
    font-size: 1.3rem;
    margin-bottom: 1rem;
    color: var(--text-dark);
}

.special-feature-item p {
    color: var(--text-light);
    line-height: 1.8;
    font-size: 0.95rem;
}

/* 应用案例 */
.cases {
    padding: 6rem 0;
    background: var(--bg-light);
}

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

.carousel-container {
    overflow: hidden;
    border-radius: 20px;
}

.carousel-track {
    display: flex;
    transition: transform 0.5s ease;
}

.case-card {
    background: white;
    border-radius: 20px;
    padding: 2rem;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
    overflow: hidden;
    position: relative;
    transition: var(--transition);
    min-width: 100%;
    flex-shrink: 0;
    display: flex;
    align-items: stretch;
    gap: 2rem;
}

.case-image {
    width: 300px;
    height: 200px;
    overflow: hidden;
    border-radius: 15px;
    flex-shrink: 0;
}

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

.case-card:hover .case-image img {
    transform: scale(1.05);
}

.case-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 5px;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
}

.case-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 20px 50px rgba(0, 0, 0, 0.15);
}

.case-left {
    flex: 1;
    display: flex;
    flex-direction: column;
}

.case-header {
    display: flex;
    align-items: center;
    margin-bottom: 1.5rem;
}

.case-content {
    flex: 1;
}

.case-logo {
    width: 60px;
    height: 60px;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    border-radius: 15px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-right: 1.5rem;
    font-size: 1.8rem;
    color: white;
}

.case-info h3 {
    font-size: 1.4rem;
    color: var(--text-dark);
    margin-bottom: 0.5rem;
    font-weight: 700;
}

.case-location {
    color: var(--text-light);
    font-size: 0.9rem;
    margin: 0;
}

.case-highlight {
    margin-bottom: 1.5rem;
}

.highlight-tag {
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: white;
    padding: 0.5rem 1rem;
    border-radius: 20px;
    font-size: 0.85rem;
    font-weight: 600;
    display: inline-block;
}

.case-description {
    color: var(--text-light);
    line-height: 1.8;
    font-size: 0.95rem;
    margin-bottom: 2rem;
    text-align: justify;
}

.case-author {
    border-top: 1px solid #f0f0f0;
    padding-top: 1.5rem;
    display: flex;
    flex-direction: column;
    gap: 0.3rem;
}

.case-author strong {
    color: var(--text-dark);
    font-size: 1rem;
}

.case-author span {
    color: var(--text-light);
    font-size: 0.85rem;
}

/* 轮播控制 */
.carousel-controls {
    position: absolute;
    top: 50%;
    width: 100%;
    display: flex;
    justify-content: space-between;
    transform: translateY(-50%);
    pointer-events: none;
}

.carousel-btn {
    width: 50px;
    height: 50px;
    background: rgba(255, 255, 255, 0.9);
    border: none;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: var(--transition);
    pointer-events: all;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
}

.carousel-btn:hover {
    background: white;
    transform: scale(1.1);
    box-shadow: 0 6px 20px rgba(0, 0, 0, 0.15);
}

.carousel-btn i {
    font-size: 1.2rem;
    color: var(--primary-color);
}

.prev-btn {
    left: -25px;
}

.next-btn {
    right: -25px;
}

/* 轮播指示器 */
.carousel-indicators {
    display: flex;
    justify-content: center;
    gap: 0.5rem;
    margin-top: 2rem;
}

.indicator {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background: rgba(85, 137, 254, 0.3);
    cursor: pointer;
    transition: var(--transition);
}

.indicator.active {
    background: var(--primary-color);
    transform: scale(1.2);
}

.indicator:hover {
    background: var(--primary-color);
}

/* 数据统计 */
.stats {
    padding: 4rem 0;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: white;
}

/* SEO内容区块 */
.seo-content {
    padding: 6rem 0;
    background: white;
}

.seo-text {
    max-width: 800px;
    margin: 0 auto;
    line-height: 1.8;
}

.seo-text h2 {
    font-size: 2.2rem;
    color: var(--text-dark);
    margin-bottom: 2rem;
    text-align: center;
}

.seo-text h3 {
    font-size: 1.5rem;
    color: var(--text-dark);
    margin: 2.5rem 0 1rem;
    padding-left: 1rem;
    border-left: 4px solid var(--primary-color);
}

.seo-text p {
    color: var(--text-light);
    margin-bottom: 1.5rem;
    font-size: 1rem;
}

.seo-text strong {
    color: var(--primary-color);
    font-weight: 600;
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 2rem;
    text-align: center;
}

.stat-item {
    padding: 2rem;
}

.stat-number {
    font-size: 3rem;
    font-weight: bold;
    margin-bottom: 0.5rem;
}

.stat-label {
    font-size: 1.1rem;
    opacity: 0.9;
}

/* 免费试用 */
.contact {
    padding: 8rem 0 6rem;
    background: var(--bg-light);
    scroll-margin-top: 80px;
}

.contact-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
}

.contact-info {
    display: flex;
    flex-direction: column;
    gap: 2rem;
}

.contact-item {
    display: flex;
    align-items: flex-start;
    gap: 1.5rem;
    padding: 1.5rem;
    background: white;
    border-radius: 10px;
    box-shadow: var(--shadow);
}

.contact-item i {
    font-size: 2rem;
    color: var(--primary-color);
    min-width: 40px;
}

.contact-item h4 {
    margin-bottom: 0.5rem;
    color: var(--text-dark);
}

.contact-item p {
    color: var(--text-light);
}

.contact-form {
    background: white;
    padding: 2rem;
    border-radius: 15px;
    box-shadow: var(--shadow);
}

.form-group {
    margin-bottom: 1.5rem;
}

.form-group input,
.form-group textarea,
.form-group select {
    width: 100%;
    padding: 1rem;
    border: 2px solid #E0E0E0;
    border-radius: 8px;
    font-size: 1rem;
    transition: var(--transition);
    font-family: inherit;
    background: white;
}

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

.form-group select {
    cursor: pointer;
}

.btn-trial-submit {
    width: 100%;
    background: linear-gradient(135deg, var(--accent-color), #ff8a80);
    color: white;
    border: none;
    padding: 1.2rem 2rem;
    border-radius: 8px;
    font-size: 1.1rem;
    font-weight: 700;
    cursor: pointer;
    transition: var(--transition);
    box-shadow: 0 8px 25px rgba(255, 107, 107, 0.3);
}

.btn-trial-submit:hover {
    background: linear-gradient(135deg, #ff8a80, var(--accent-color));
    transform: translateY(-3px);
    box-shadow: 0 12px 30px rgba(255, 107, 107, 0.4);
}

/* 二维码区域 */
.qr-section {
    margin-top: 3rem;
    margin-bottom: 2rem;
}

.qr-container {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 4rem;
    max-width: 900px;
    margin: 0 auto;
    background: white;
    padding: 3rem;
    border-radius: 20px;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.1);
}

.qr-code {
    flex-shrink: 0;
}

.qr-code img {
    width: 300px;
    height: 300px;
    border-radius: 15px;
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.1);
}

.qr-info {
    flex: 1;
}

.qr-info h3 {
    font-size: 2rem;
    color: var(--text-dark);
    margin-bottom: 1rem;
    font-weight: 700;
}

.qr-description {
    font-size: 1.1rem;
    color: var(--text-light);
    margin-bottom: 2rem;
    line-height: 1.6;
}

.qr-features {
    margin-bottom: 2rem;
}

.qr-feature {
    display: flex;
    align-items: center;
    gap: 0.8rem;
    margin-bottom: 1rem;
}

.qr-feature i {
    color: #28a745;
    font-size: 1.2rem;
}

.qr-feature span {
    color: var(--text-dark);
    font-weight: 500;
}

.qr-link {
    padding-top: 1.5rem;
    border-top: 1px solid #f0f0f0;
}

.qr-link p {
    color: var(--text-light);
    margin: 0;
}

.qr-link a {
    color: var(--primary-color);
    text-decoration: none;
    font-weight: 600;
}

.qr-link a:hover {
    text-decoration: underline;
}

/* 页脚 */
.footer {
    background: var(--text-dark);
    color: white;
    padding: 3rem 0 1rem;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    margin-bottom: 2rem;
}

.footer-section h3 {
    margin-bottom: 1rem;
    color: white;
}

.footer-section p {
    color: rgba(255, 255, 255, 0.7);
    line-height: 1.8;
}

.footer-section ul {
    list-style: none;
}

.footer-section ul li {
    margin-bottom: 0.5rem;
}

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

.footer-section ul li a:hover {
    color: var(--primary-color);
}

.social-links {
    display: flex;
    gap: 1rem;
}

.social-links a {
    width: 40px;
    height: 40px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    text-decoration: none;
    transition: var(--transition);
}

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

.footer-bottom {
    text-align: center;
    padding-top: 2rem;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    color: rgba(255, 255, 255, 0.7);
}

/* 返回顶部按钮 */
.back-to-top {
    position: fixed;
    bottom: 2rem;
    right: 2rem;
    width: 50px;
    height: 50px;
    background: var(--primary-color);
    color: white;
    border: none;
    border-radius: 50%;
    font-size: 1.5rem;
    cursor: pointer;
    opacity: 0;
    visibility: hidden;
    transition: var(--transition);
    z-index: 999;
}

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

.back-to-top:hover {
    background: var(--secondary-color);
    transform: translateY(-5px);
}

/* 动画 */
@keyframes fadeIn {
    from {
        opacity: 0;
    }
    to {
        opacity: 1;
    }
}

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

/* 响应式设计 */
@media (max-width: 768px) {
    .nav-menu {
        display: none;
    }

    .mobile-menu-toggle {
        display: block;
    }

    .hero-title {
        font-size: 3rem;
        letter-spacing: 1px;
    }

    .hero-subtitle {
        font-size: 1.5rem;
    }

    .hero-description {
        font-size: 1rem;
    }

    .btn {
        padding: 1rem 2rem;
        font-size: 1rem;
    }

    .section-header h2 {
        font-size: 2rem;
    }

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

    .cases-carousel {
        max-width: 100%;
        margin: 0 1rem;
    }

    .case-card {
        padding: 1.5rem;
        flex-direction: column;
        gap: 1.5rem;
    }

    .case-image {
        width: 100%;
        order: -1;
    }

    .case-image {
        height: 150px;
    }

    .case-header {
        flex-direction: column;
        text-align: center;
        margin-bottom: 1rem;
        padding: 1rem 1.5rem 0;
    }

    .case-content {
        padding: 0 1.5rem 1.5rem;
    }

    .case-logo {
        margin-right: 0;
        margin-bottom: 1rem;
    }

    .carousel-btn {
        width: 40px;
        height: 40px;
    }

    .prev-btn {
        left: -20px;
    }

    .next-btn {
        right: -20px;
    }

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

    .qr-container {
        flex-direction: column;
        gap: 2rem;
        padding: 2rem;
    }

    .qr-code img {
        width: 250px;
        height: 250px;
    }

    .qr-info h3 {
        font-size: 1.5rem;
        text-align: center;
    }

    .qr-description {
        text-align: center;
        font-size: 1rem;
    }

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

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

    .btn {
        width: 100%;
    }
}

@media (max-width: 480px) {
    .hero-title {
        font-size: 2rem;
    }

    .hero-subtitle {
        font-size: 1.2rem;
    }

    .stat-number {
        font-size: 2rem;
    }

    .back-to-top {
        width: 40px;
        height: 40px;
        font-size: 1.2rem;
    }
}