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

:root {
    --primary-color: #FFC107;     /* 明亮的工业黄 */
    --secondary-color: #212121;   /* 深灰近黑色 */
    --accent-color: #FFD700;      /* 金黄色 */
    --text-color: #333333;        /* 主要文字颜色 */
    --text-light: #ffffff;        /* 浅色文字 */
    --bg-dark: #1A1A1A;          /* 深色背景 */
    --bg-light: #F5F5F5;         /* 浅色背景 */
    --warning-color: #FF3D00;     /* 警告红色 */
}

body {
    font-family: 'Segoe UI', 'Microsoft YaHei', sans-serif;
    line-height: 1.6;
    color: var(--text-color);
    background-color: #ffffff;
}

.container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 30px;
}

/* 导航栏样式 */
.navbar {
    background-color: var(--bg-dark);
    box-shadow: 0 4px 20px rgba(0,0,0,0.1);
    position: fixed;
    width: 100%;
    top: 0;
    z-index: 1000;
    padding: 1rem 0;
}

.navbar .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 20px;
}

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

.logo-img {
    height: 55px;
    width: auto;
    display: block;
    transition: transform 0.3s ease;
}

.logo:hover .logo-img {
    transform: rotate(180deg);
}

.logo-text-container {
    display: flex;
    flex-direction: column;
    gap: 2px;
}

.logo-text {
    color: var(--primary-color);
    font-size: 1.8rem;
    font-weight: bold;
    letter-spacing: 1px;
}

.logo-text-en {
    font-size: 0.75rem;
    color: var(--primary-color);
    letter-spacing: 1px;
    opacity: 0.8;
}

.nav-links {
    display: flex;
    list-style: none;
    gap: 3rem;
}

.nav-links a {
    text-decoration: none;
    color: var(--text-light);
    font-size: 1.1rem;
    font-weight: 500;
    transition: all 0.3s ease;
    padding: 0.5rem 1rem;
    border-radius: 4px;
    display: flex;
    align-items: center;
    gap: 5px;
}

.nav-links a::after {
    font-size: 0.9rem;
    line-height: 1;
}

.nav-links a[href="#home"]::after {
    content: '🏠';
}

.nav-links a[href="#expertise"]::after {
    content: '⚡';
}

.nav-links a[href="#process"]::after {
    content: '📋';
}

.nav-links a[href="#contact"]::after {
    content: '📞';
}

.nav-links a:hover::after {
    animation: wiggle 0.5s ease;
}

@keyframes wiggle {
    0%, 100% { transform: rotate(0); }
    25% { transform: rotate(-10deg); }
    75% { transform: rotate(10deg); }
}

/* 导航栏英文样式 */
.nav-en {
    display: none;
}

/* 英文副标题 */
.section-subtitle {
    display: block;
    text-align: center;
    color: var(--primary-color);
    font-size: 0.9rem;
    letter-spacing: 3px;
    margin-bottom: 1rem;
    font-weight: 500;
}

/* 首页横幅样式 */
.hero {
    background: linear-gradient(rgba(0, 0, 0, 0.7), rgba(0, 0, 0, 0.7)), url('https://source.unsplash.com/random/1920x1080?technology') no-repeat center center/cover;
    min-height: 100vh;
    display: flex;
    align-items: center;
    text-align: center;
    color: var(--text-light);
    padding: 120px 0;
    position: relative;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(45deg, rgba(0,0,0,0.8) 0%, rgba(0,0,0,0.4) 100%);
    z-index: 1;
}

.hero .container {
    position: relative;
    z-index: 2;
}

.hero h1 {
    font-size: 4.5rem;
    margin-bottom: 2rem;
    color: var(--primary-color);
    animation: fadeInUp 1s ease-out;
    text-transform: uppercase;
    letter-spacing: 2px;
    line-height: 1.2;
}

.hero p {
    font-size: 1.8rem;
    margin-bottom: 3rem;
    animation: fadeInUp 1s ease-out 0.3s;
    opacity: 0;
    animation-fill-mode: forwards;
    max-width: none;
    margin-left: auto;
    margin-right: auto;
    white-space: nowrap;
}

.hero-subtitle {
    display: block;
    color: var(--primary-color);
    font-size: 1.2rem;
    letter-spacing: 4px;
    margin-bottom: 1.5rem;
    animation: fadeInUp 1s ease-out;
    white-space: nowrap;
    text-align: center;
    width: 100%;
    padding: 0 20px;
}

.service-tag {
    background: var(--primary-color);
    color: var(--secondary-color);
    padding: 0.3rem 1rem;
    border-radius: 20px;
    font-size: 0.8rem;
    letter-spacing: 1px;
    margin-left: 1rem;
    font-weight: bold;
}

.contact-number {
    display: inline-flex;
    align-items: center;
    gap: 1.5rem;
    margin-bottom: 3rem;
    background: rgba(255, 255, 255, 0.1);
    padding: 1.5rem 3rem;
    border-radius: 50px;
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.phone-icon {
    font-size: 2.5rem;
    color: var(--primary-color);
    animation: pulse 2s infinite;
}

.phone-number {
    font-size: 2.8rem;
    font-weight: bold;
    color: var(--primary-color);
    text-decoration: none;
    letter-spacing: 2px;
    transition: all 0.3s ease;
}

.phone-number:hover {
    color: var(--accent-color);
    transform: scale(1.05);
    text-shadow: 0 0 20px rgba(255, 193, 7, 0.5);
}

.hero-buttons {
    display: flex;
    justify-content: center;
    gap: 2rem;
    margin-bottom: 4rem;
}

.cta-button {
    display: inline-block;
    padding: 1.2rem 3rem;
    font-size: 1.2rem;
    background-color: var(--primary-color);
    color: var(--secondary-color);
    text-decoration: none;
    border-radius: 50px;
    font-weight: bold;
    text-transform: uppercase;
    letter-spacing: 2px;
    transition: all 0.3s ease;
    border: 2px solid var(--primary-color);
}

.cta-button:hover {
    transform: translateY(-3px);
    background-color: var(--accent-color);
    box-shadow: 0 10px 30px rgba(255, 193, 7, 0.3);
}

.cta-button.secondary {
    background-color: transparent;
    border: 2px solid var(--primary-color);
    color: var(--primary-color);
}

.cta-button.secondary:hover {
    background-color: var(--primary-color);
    color: var(--secondary-color);
}

.hero-features-container {
    width: 100vw;
    position: relative;
    left: 50%;
    right: 50%;
    margin-left: -50vw;
    margin-right: -50vw;
    overflow: hidden;
    margin-top: 4rem;
    padding: 2rem 0;
    display: flex;
    flex-direction: column;
    gap: 2rem;
}

.hero-features {
    display: flex;
    gap: 1.5rem;
    width: max-content;
    padding: 0.5rem 0;
}

.hero-features-row1 {
    animation: scrollLeft 60s linear infinite;
}

.hero-features-row2 {
    animation: scrollRight 50s linear infinite;
}

.hero-features:hover {
    animation-play-state: paused;
}

@keyframes scrollLeft {
    0% {
        transform: translateX(0);
    }
    100% {
        transform: translateX(-50%);
    }
}

@keyframes scrollRight {
    0% {
        transform: translateX(-50%);
    }
    100% {
        transform: translateX(0);
    }
}

.feature {
    display: flex;
    align-items: center;
    gap: 1rem;
    background: rgba(255, 255, 255, 0.05);
    padding: 1rem 1.5rem;
    border-radius: 50px;
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.1);
    transition: all 0.3s ease;
    animation: float 3s ease-in-out infinite;
    white-space: nowrap;
}

.hero-features-row1 .feature:nth-child(odd) {
    animation-duration: 4s;
}

.hero-features-row1 .feature:nth-child(3n) {
    animation-duration: 5s;
}

.hero-features-row2 .feature:nth-child(even) {
    animation-duration: 4.5s;
}

.hero-features-row2 .feature:nth-child(3n) {
    animation-duration: 5.5s;
}

.feature:hover {
    transform: translateY(-5px);
    background: rgba(255, 255, 255, 0.1);
    border-color: var(--primary-color);
}

.feature-icon {
    font-size: 1.5rem;
    color: var(--primary-color);
}

@keyframes float {
    0%, 100% {
        transform: translateY(0);
    }
    50% {
        transform: translateY(-10px);
    }
}

/* 专业技术样式 */
.expertise {
    padding: 8rem 0;
    background-color: var(--bg-light);
    position: relative;
    overflow: hidden;
}

.expertise .container {
    max-width: 100%;
    padding: 0;
}

.expertise h2 {
    font-size: 3rem;
    color: var(--secondary-color);
    text-align: center;
    margin-bottom: 5rem;
    position: relative;
    text-transform: uppercase;
    letter-spacing: 2px;
    padding: 0 20px;
}

.expertise h2::after {
    content: '';
    position: absolute;
    bottom: -20px;
    left: 50%;
    transform: translateX(-50%);
    width: 100px;
    height: 4px;
    background-color: var(--primary-color);
}

.expertise-grid {
    display: flex;
    gap: 2rem;
    padding: 2rem;
    overflow-x: auto;
    scroll-snap-type: x mandatory;
    scroll-behavior: smooth;
    -webkit-overflow-scrolling: touch;
    scrollbar-width: none; /* Firefox */
    position: relative;
}

.expertise-grid::-webkit-scrollbar {
    display: none; /* Chrome, Safari, Edge */
}

.expertise-card {
    flex: 0 0 350px;
    scroll-snap-align: start;
    background-color: #fff;
    padding: 3rem;
    border-radius: 15px;
    box-shadow: 0 10px 30px rgba(0,0,0,0.1);
    transition: all 0.4s ease;
    position: relative;
    overflow: hidden;
}

/* 添加滚动指示器 */
.expertise::after {
    content: '→';
    position: absolute;
    right: 20px;
    bottom: 20px;
    font-size: 2rem;
    color: var(--primary-color);
    animation: bounce 2s infinite;
    opacity: 0.7;
}

@keyframes bounce {
    0%, 100% {
        transform: translateX(0);
    }
    50% {
        transform: translateX(10px);
    }
}

/* 保持其他expertise相关样式不变 */
.expertise-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 5px;
    background: var(--primary-color);
    transform: scaleX(0);
    transform-origin: left;
    transition: transform 0.4s ease;
}

.expertise-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 20px 40px rgba(0,0,0,0.15);
}

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

.expertise-icon {
    font-size: 3.5rem;
    margin-bottom: 2rem;
    color: var(--primary-color);
}

.expertise-card h3 {
    font-size: 1.8rem;
    color: var(--secondary-color);
    margin-bottom: 1.5rem;
}

.expertise-list {
    list-style: none;
    text-align: left;
}

.expertise-list li {
    margin-bottom: 1rem;
    padding-left: 2rem;
    position: relative;
    font-size: 1.1rem;
}

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

/* 恢复流程样式 */
.process {
    padding: 8rem 0;
    background-color: var(--bg-dark);
    color: var(--text-light);
    position: relative;
    overflow: hidden;
}

.process h2 {
    font-size: 3rem;
    color: var(--primary-color);
    text-align: center;
    margin-bottom: 5rem;
    text-transform: uppercase;
    letter-spacing: 2px;
    position: relative;
}

.process h2::after {
    content: '';
    position: absolute;
    bottom: -20px;
    left: 50%;
    transform: translateX(-50%);
    width: 100px;
    height: 4px;
    background-color: var(--primary-color);
}

.process-timeline {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 3rem;
    padding: 2rem;
    max-width: 1200px;
    margin: 0 auto;
}

.process-step {
    background: rgba(255, 255, 255, 0.05);
    padding: 3rem 2rem;
    border-radius: 15px;
    transition: all 0.4s ease;
    position: relative;
    border: 1px solid rgba(255, 255, 255, 0.1);
    text-align: center;
}

.process-step:hover {
    transform: translateY(-10px);
    background: rgba(255, 255, 255, 0.1);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
}

.step-number {
    background-color: var(--primary-color);
    color: var(--secondary-color);
    width: 50px;
    height: 50px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    font-weight: bold;
    margin: 0 auto 2rem;
    transition: all 0.3s ease;
}

.process-step:hover .step-number {
    transform: scale(1.1);
    box-shadow: 0 0 20px rgba(255, 193, 7, 0.3);
}

.process-step h3 {
    font-size: 1.5rem;
    margin-bottom: 1.5rem;
    color: var(--primary-color);
}

.process-step p {
    font-size: 1.1rem;
    line-height: 1.6;
    color: rgba(255, 255, 255, 0.8);
}

/* 按钮英文样式 */
.btn-en {
    display: none;
}

/* 特性英文样式 */
.feature-en {
    display: none;
}

/* 卡片英文样式 */
.card-en {
    display: block;
    font-size: 0.75rem;
    color: var(--text-light);
    letter-spacing: 1px;
    margin-top: 5px;
    font-weight: normal;
    opacity: 0.7;
}

/* 步骤英文样式 */
.step-en {
    display: none;
}

/* 联系方式样式 */
.contact {
    padding: 8rem 0;
    background-color: var(--bg-light);
    position: relative;
    overflow: hidden;
}

.contact h2 {
    font-size: 3rem;
    text-align: center;
    margin-bottom: 5rem;
    color: var(--secondary-color);
    text-transform: uppercase;
    letter-spacing: 2px;
    position: relative;
}

.contact h2::after {
    content: '';
    position: absolute;
    bottom: -20px;
    left: 50%;
    transform: translateX(-50%);
    width: 100px;
    height: 4px;
    background-color: var(--primary-color);
}

.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1fr 1fr;
    gap: 2rem;
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 2rem;
}

.contact-info {
    background: #ffffff;
    padding: 3rem;
    border-radius: 15px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
    text-align: center;
    transition: all 0.4s ease;
}

.contact-info:hover {
    transform: translateY(-10px);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.15);
}

.contact-info .phone {
    font-size: 2.5rem;
    margin: 1.5rem 0;
    color: var(--primary-color);
    font-weight: bold;
    letter-spacing: 1px;
    transition: all 0.3s ease;
}

.contact-info .phone:hover {
    transform: scale(1.05);
    text-shadow: 0 0 20px rgba(255, 193, 7, 0.3);
}

.emergency-service {
    background-color: var(--bg-dark);
    color: var(--text-light);
    padding: 3rem;
    border-radius: 15px;
    text-align: center;
    position: relative;
    overflow: hidden;
    transition: all 0.4s ease;
}

.emergency-service::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 5px;
    background: var(--warning-color);
}

.emergency-service:hover {
    transform: translateY(-10px);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.3);
}

.emergency-button {
    display: inline-block;
    padding: 1.2rem 3rem;
    background-color: var(--warning-color);
    color: var(--text-light);
    text-decoration: none;
    border-radius: 50px;
    font-size: 1.2rem;
    font-weight: bold;
    text-transform: uppercase;
    letter-spacing: 2px;
    transition: all 0.3s ease;
    margin: 1.5rem 0;
}

.emergency-button:hover {
    transform: translateY(-3px);
    background-color: #FF6E40;
    box-shadow: 0 10px 30px rgba(255, 61, 0, 0.3);
}

.wechat-contact {
    background: #ffffff;
    padding: 3rem;
    border-radius: 15px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
    text-align: center;
    transition: all 0.4s ease;
}

.wechat-contact:hover {
    transform: translateY(-10px);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.15);
}

.qr-code {
    margin: 1.5rem auto;
    max-width: 160px;
    background: #fff;
    padding: 0.8rem;
    border-radius: 10px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
    transition: all 0.3s ease;
}

.wechat-qr {
    width: 100%;
    height: auto;
    border-radius: 5px;
    display: block;
}

.qr-code:hover {
    transform: scale(1.05);
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.2);
}

.contact-features {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 1rem;
    margin-top: 2rem;
}

.contact-feature {
    background: var(--bg-light);
    padding: 1rem;
    border-radius: 10px;
    display: flex;
    align-items: center;
    gap: 0.8rem;
    transition: all 0.3s ease;
}

.contact-feature:hover {
    transform: translateY(-5px);
    background: #f0f0f0;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
}

.contact-feature .feature-icon {
    font-size: 1.5rem;
    color: var(--primary-color);
}

/* 联系方式英文样式 */
.contact-en {
    display: none;
}

.emergency-en {
    display: none;
}

/* 页脚样式 */
footer {
    background-color: var(--bg-dark);
    color: var(--text-light);
    padding: 3rem 0;
}

.footer-content {
    text-align: center;
}

.footer-info {
    margin-bottom: 1.5rem;
}

.footer-contact {
    margin-bottom: 1.5rem;
    color: var(--primary-color);
}

.copyright {
    font-size: 0.9rem;
    opacity: 0.8;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    padding-top: 1rem;
    margin-top: 1rem;
}

/* 动画 */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes pulse {
    0% {
        transform: scale(1);
    }
    50% {
        transform: scale(1.1);
    }
    100% {
        transform: scale(1);
    }
}

/* 响应式设计 */
@media (max-width: 1200px) {
    .hero h1 {
        font-size: 3.5rem;
    }

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

    .phone-number {
        font-size: 2.2rem;
    }

    .contact-number {
        padding: 1.2rem 2.5rem;
    }

    .process-timeline {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .contact-grid {
        grid-template-columns: 1fr 1fr;
        gap: 2rem;
    }

    .wechat-contact {
        grid-column: span 2;
        max-width: 400px;
        margin: 0 auto;
        padding: 3rem;
    }

    .qr-code {
        max-width: 180px;
    }

    .hero-features {
        grid-template-columns: repeat(3, 1fr);
        gap: 1rem;
        padding: 0 2rem;
    }
}

@media (max-width: 768px) {
    .navbar {
        padding: 0.5rem 0;
    }

    .navbar .container {
        padding: 0.5rem 15px;
    }

    .logo-img {
        height: 40px;
    }

    .logo-text {
        font-size: 1.2rem;
    }

    .logo-text-en {
        font-size: 0.6rem;
    }

    .nav-links {
        position: fixed;
        top: 0;
        right: -100%;
        height: 100vh;
        width: 80%;
        max-width: 300px;
        background: var(--bg-dark);
        flex-direction: column;
        gap: 0;
        padding: 80px 0 0;
        transition: right 0.3s ease;
        z-index: 100;
    }

    .nav-links.active {
        right: 0;
    }

    .nav-links li {
        width: 100%;
    }

    .nav-links a {
        padding: 1rem 2rem;
        width: 100%;
        border-radius: 0;
        font-size: 1.1rem;
    }

    .nav-links a:hover {
        background: rgba(255, 255, 255, 0.1);
    }

    /* 汉堡菜单按钮 */
    .menu-toggle {
        display: block;
        width: 30px;
        height: 30px;
        position: relative;
        cursor: pointer;
        z-index: 101;
    }

    .menu-toggle span {
        display: block;
        width: 100%;
        height: 2px;
        background: var(--primary-color);
        position: absolute;
        transition: all 0.3s ease;
    }

    .menu-toggle span:nth-child(1) { top: 6px; }
    .menu-toggle span:nth-child(2) { top: 14px; }
    .menu-toggle span:nth-child(3) { top: 22px; }

    .menu-toggle.active span:nth-child(1) {
        transform: rotate(45deg);
        top: 14px;
    }

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

    .menu-toggle.active span:nth-child(3) {
        transform: rotate(-45deg);
        top: 14px;
    }

    .hero {
        min-height: calc(100vh - 60px);
        padding: 80px 0 40px;
    }

    .hero h1 {
        font-size: 2.2rem;
        margin-bottom: 1.5rem;
    }

    .hero p {
        font-size: 1.1rem;
        margin-bottom: 2rem;
        padding: 0 20px;
        white-space: normal; /* 在手机上允许换行 */
    }

    .contact-number {
        flex-direction: column;
        gap: 1rem;
        padding: 1rem;
        margin-bottom: 2rem;
    }

    .phone-icon {
        font-size: 2rem;
    }

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

    .service-tag {
        font-size: 0.7rem;
        padding: 0.2rem 0.8rem;
    }

    .hero-buttons {
        flex-direction: column;
        gap: 1rem;
        padding: 0 20px;
    }

    .cta-button {
        width: 100%;
        padding: 1rem;
        font-size: 1rem;
        text-align: center;
    }

    .hero-features-container {
        margin-top: 2rem;
        padding: 1rem 0;
    }

    .feature {
        padding: 0.8rem 1.2rem;
        font-size: 0.9rem;
        min-width: auto;
    }

    .feature-icon {
        font-size: 1.2rem;
    }

    .process {
        padding: 4rem 0;
    }

    .process h2 {
        font-size: 2rem;
        margin-bottom: 3rem;
    }

    .process-timeline {
        grid-template-columns: 1fr;
        gap: 2rem;
        padding: 0 1rem;
    }

    .process-step {
        padding: 2rem 1.5rem;
    }

    .step-number {
        width: 40px;
        height: 40px;
        font-size: 1.2rem;
    }

    .contact {
        padding: 4rem 0;
    }

    .contact h2 {
        font-size: 2rem;
        margin-bottom: 3rem;
    }

    .contact-grid {
        grid-template-columns: 1fr;
        gap: 2rem;
        padding: 0 1rem;
    }

    .contact-info,
    .emergency-service,
    .wechat-contact {
        grid-column: span 1;
        padding: 2.5rem;
    }
    
    .wechat-contact {
        max-width: none;
    }
    
    .qr-code {
        max-width: 160px;
        margin: 1.5rem auto;
    }
    
    .wechat-contact h3 {
        font-size: 1.6rem;
    }

    .contact-info h3 {
        font-size: 1.6rem;
    }

    .contact-info .phone {
        font-size: 2.2rem;
    }

    .contact-info .address {
        font-size: 1rem;
    }

    .emergency-service h3 {
        font-size: 1.6rem;
    }

    .emergency-button {
        width: 100%;
        padding: 1rem;
        font-size: 1rem;
    }

    .footer {
        padding: 2rem 0;
    }

    .footer-content {
        padding: 0 1rem;
    }

    .footer-info p {
        font-size: 1rem;
    }

    .footer-en {
        font-size: 0.7rem;
    }

    .footer-contact p,
    .footer-services p {
        font-size: 0.9rem;
        line-height: 1.6;
    }

    .footer-links {
        flex-direction: column;
        gap: 1rem;
    }

    .footer-links a {
        display: block;
        padding: 0.5rem;
    }

    .footer-links .separator {
        display: none;
    }

    .copyright {
        font-size: 0.8rem;
        margin-top: 1.5rem;
    }
}

@media (max-width: 480px) {
    .hero-features-container {
        padding: 1rem 0;
        gap: 1rem;
    }

    .hero-features {
        gap: 1rem;
    }

    .feature {
        padding: 0.7rem 1rem;
        font-size: 0.85rem;
    }

    .hero-subtitle {
        font-size: 0.9rem;
        letter-spacing: 1px;
    }
}

.privacy-feature {
    position: relative;
}

.privacy-link {
    position: absolute;
    bottom: -25px;
    left: 50%;
    transform: translateX(-50%);
    font-size: 0.8rem;
    color: var(--primary-color);
    text-decoration: none;
    white-space: nowrap;
    background: rgba(0, 0, 0, 0.5);
    padding: 3px 10px;
    border-radius: 15px;
    opacity: 0;
    transition: opacity 0.3s ease;
}

.privacy-feature:hover .privacy-link {
    opacity: 1;
}

.footer-links {
    margin: 2rem 0;
    text-align: center;
}

.footer-links a {
    color: var(--text-light);
    text-decoration: none;
    font-size: 1rem;
    transition: color 0.3s ease;
}

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

.footer-links .separator {
    color: var(--text-light);
    margin: 0 15px;
    opacity: 0.5;
}

.footer-privacy-link {
    position: relative;
}

.footer-privacy-link::after {
    content: '🔒';
    font-size: 0.8rem;
    margin-left: 5px;
}

.privacy-nav-link {
    position: relative;
    display: flex;
    align-items: center;
    gap: 5px;
}

.privacy-nav-link::after {
    content: '🔒' !important;
}

.privacy-nav-link:hover::after {
    animation: wiggle 0.5s ease;
}

@keyframes wiggle {
    0%, 100% { transform: rotate(0); }
    25% { transform: rotate(-10deg); }
    75% { transform: rotate(10deg); }
}

.footer-en {
    font-size: 0.8rem;
    color: var(--text-light);
    opacity: 0.7;
    letter-spacing: 1px;
    margin: 5px 0 15px;
}

.service-en {
    display: none;
}

/* 超小屏幕优化 */
@media (max-width: 360px) {
    .hero h1 {
        font-size: 1.8rem;
    }

    .phone-number {
        font-size: 1.8rem;
    }

    .feature {
        padding: 0.7rem 1rem;
        font-size: 0.8rem;
    }

    .feature-icon {
        font-size: 1rem;
    }
}