/* Reset and Base Styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Segoe UI', 'Microsoft YaHei', 'Malgun Gothic', sans-serif;
    background-color: #f5f3ed;
    color: #222;
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    min-height: 100vh;
}


/* Fade in animation */
@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.fade-in {
    opacity: 0;
    animation: fadeIn 0.8s ease-out;
}

.font-extrabold {
    font-weight: 800 !important;
}

/* Container */
.container {
    max-width: 1280px;
    margin: 0 auto;
    padding-left: 1.5rem;
    padding-right: 1.5rem;
}

@media (min-width: 1024px) {
    .container {
        padding-left: 3rem;
        padding-right: 3rem;
    }
}



/* Navbar */
.navbar {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    z-index: 50;
    transition: background-color 0.3s, backdrop-filter 0.3s;
}

.nav-content {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding-top: 1.5rem;
    padding-bottom: 1.5rem;
}

.logo-link {
    display: flex;
    align-items: center;
}

.logo {
    height: 2.25rem;
}

.btn-download {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    background-color: #c41e3a;
    color: white;
    padding: 0.5rem 1rem;
    border-radius: 0.5rem;
    border: none;
    cursor: pointer;
    font-size: 0.875rem;
    font-weight: 500;
    transition: background-color 0.3s;
}

.btn-download:hover {
    background-color: #93192A;
}

@media (min-width: 768px) {
    .btn-download {
        padding: 0.5rem 1.5rem;
        font-size: 1rem;
    }
}

/* Hero Section */
.hero-section {
    position: relative;
    height: 100vh;
    /*min-height: 600px;*/
    height: 750px;
    display: flex;
    align-items: center;
    background-color: #4d5f69;
}

.hero-background {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    z-index: 0;
}

@keyframes bgFadeIn {
    from {
        opacity: 0;
    }
    to {
        opacity: 1;
    }
}

.hero-image {
    width: 100%;
    height: 100%;
    background: url('../img/image1.png') no-repeat center  ; background-size: cover; 
    object-fit: cover;
    animation: bgFadeIn 1s ease-in-out forwards; /*动画时长1秒，保持最终状态 ease-in-out forwards*/
    opacity: 0;  /*初始隐藏 */
}

.hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(to right, rgba(0,0,0,0.7), rgba(0,0,0,0.5), rgba(0,0,0,0.3));
}

.hero-content {
    position: relative;
    z-index: 10;
    width: 77rem;
    padding-left: 1.5rem;
}

.hero-text {
    max-width: 48rem;
}

.hero-title {
    font-size: 3rem;
    color: white;
    margin-bottom: 1.5rem;
    line-height: 1.125;
}

.hero-subtitle {
    font-size: 1.25rem;
    color: rgba(255,255,255,0.9);
    margin-bottom: 2rem;
    line-height: 1.625;
}

.hero-stats {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    color: rgba(255,255,255,0.8);
    font-size: 0.9rem;
    letter-spacing : -0.1px;
}

@media (min-width: 768px) {
    .hero-title {
        font-size: 3.75rem;
    }
    
    .hero-subtitle {
        font-size: 1.5rem;
    }
    
    .hero-stats {
    gap: 1rem;
    letter-spacing : 0px;
        font-size: 1.25rem;
    }
}

@media (min-width: 1024px) {
    .hero-title {
        font-size: 4.5rem;
    }
}

/* Brand Logos Section */
.brands-section {
    padding-top: 3rem;
    padding-bottom: 3rem;
    background-color: white;
    border-bottom: 1px solid #e5e7eb;
}

.brands-content {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 1.5rem;
}

.brands-title {
    flex-shrink: 0;
    width: 100%;
    text-align: center;
}

.brands-title h3 {
    font-size: 1.5rem;
    font-weight: 800;
    color: #111827;
}

.brands-scroll-container {
    position: relative;
    overflow: hidden;
    width: 100%;
    flex-grow: 1;
}

.brands-gradient-left,
.brands-gradient-right {
    position: absolute;
    top: 0;
    bottom: 0;
    width: 5rem;
    z-index: 10;
    pointer-events: none;
}

.brands-gradient-left {
    left: 0;
    background: linear-gradient(to right, white, transparent);
}

.brands-gradient-right {
    right: 0;
    background: linear-gradient(to left, white, transparent);
}
/*
.brands-scroll {
    display: flex;
    animation: scroll 5s linear infinite;
}

.brands-scroll:hover {
    animation-play-state: paused;
}

@keyframes scroll {
    0% {
        transform: translateX(0);
    }
    100% {
        transform: translateX(-50%);
    }
}
*/
.brands-group {
    display: flex;
    gap: 1.5rem;
    padding-left: 1rem;
    padding-right: 1rem;
}

.brand-item {
    flex-shrink: 0;
    width: 12rem;
    /*
    width: 6rem;
    height: 4rem;*/
    background-color: white;
    border-radius: 0.5rem;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 0.0rem;
    border: 1px solid #f3f4f6;
    transition: all 0.3s;
}

.brand-item:hover {
    box-shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
}

.brand-item img {
    width: 100%;
    height: 100%;
    object-fit: contain;
}

@media (min-width: 768px) {
    .brands-content {
        flex-direction: row;
        gap: 3rem;
    }
    
    .brands-title {
        width: auto;
        text-align: left;
    }
    
    .brands-title h3 {
        font-size: 1.875rem;
    }
}

@media (min-width: 1024px) {
    .brands-title h3 {
        font-size: 2rem;
    }
}

/* Welcome Section */
.welcome-section {
    padding-top: 5rem;
    padding-bottom: 5rem;
    background-color: white;
}

.welcome-content {
    max-width: 72rem;
    margin: 0 auto;
}

.section-title {
    font-size: 2.25rem;
    margin-bottom: 3rem;
    font-weight: 800;
}

.welcome-grid {
    display: grid;
    gap: 3rem;
    color: #4b5563;
}

.welcome-text {
    margin-bottom: 1.5rem;
    line-height: 1.625;
}

@media (min-width: 768px) {
    .welcome-section {
        padding-top: 8rem;
        padding-bottom: 8rem;
    }
    
    .section-title {
        font-size: 3rem;
    }
    
    .welcome-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

/* Image Sections */
.image-section {
    position: relative;
    height: 400px;
    overflow : hidden; 
}

.image-container {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
}

.full-image {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

@media (max-width: 468px) {
    .full-image_R {
        object-position: 33% 0px;
    }
    
}


@media (min-width: 768px) {
    .image-section {
        height: 550px;
    }
    
}

@media (min-width: 1024px) {
    .image-section {
        height: 610px;
    }
}



.image01_img
{
    position: absolute;
    bottom: -20px;
    left: 0;
    padding-left: 1.5rem;
}
.image01_img img
{
    width: 74%;
    height: 74%;
    object-fit: cover;
}
@media (min-width: 468px) {
    .image01_img img
    {
        width: 60%;
        height: 60%;
        object-fit: cover;
    }
}

@media (min-width: 768px) {
    .image01_img img
    {
        width: 80%;
        height: 80%;
        object-fit: cover;
    }
}

/* Services Section */
.services-section {
    background-color: #1a1a1a;
    color: #fff;
    padding-top: 5rem;
    padding-bottom: 5rem;
}
.services-content {
    max-width: 72rem;
    margin: 0 auto;
}

.section-title-white {
    font-size: 2.25rem;
    margin-bottom: 1.5rem;
    text-align: center;
    font-weight: 800;
}

.services-subtitle {
    text-align: center;
    font-size: 1.125rem;
    color: #d1d5db;
    margin-bottom: 4rem;
    max-width: 48rem;
    margin-left: auto;
    margin-right: auto;
    line-height: 1.625;
}

.services-grid {
    display: grid;
    gap: 2rem;
    grid-template-columns: 1fr;
}

.service-card {
    background-color: rgba(255,255,255,0.05);
    padding: 2rem;
    border-radius: 0.5rem;
    border: 1px solid rgba(255,255,255,0.1);
    transition: background-color 0.3s;
}

.service-card:hover {
    background-color: #c41e3a;
}
.service-card:hover .service-description{
    color: #fff;
}

.service-card-large {
    /* Will be styled via media query */
}

.service-title {
    font-size: 1.5rem;
    margin-bottom: 1rem;
    font-weight: 800;
}

.service-description {
    color: #9ca3af;
    line-height: 1.625;
}

@media (min-width: 768px) {
    .services-section {
        padding-top: 8rem;
        padding-bottom: 8rem;
    }
    
    .section-title-white {
        font-size: 3rem;
    }
    
    .services-grid {
        grid-template-columns: repeat(3, 1fr);
    }
    
    .service-card-large {
        grid-column: 1 / 2;
        grid-row: 1 / 4;
        display: flex;
        flex-direction: column;
        justify-content: center;
    }
}

/* Logistics Section */
.logistics-section {
    padding-top: 5rem;
    padding-bottom: 5rem;
    background-color: white;
}

.logistics-content {
    max-width: 64rem;
    margin: 0 auto;
}

.logistics-subtitle {
    text-align: center;
    font-size: 1.125rem;
    color: #4b5563;
    margin-bottom: 4rem;
    max-width: 47rem;
    margin-left: auto;
    margin-right: auto;
    line-height: 1.625;
}

.logistics-grid {
    display: grid;
    gap: 2rem;
}

.logistics-step {
    text-align: center;
}

.logistics-number {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 4rem;
    height: 4rem;
    border-radius: 9999px;
    background-color: #c41e3a;
    color: white;
    font-size: 1.5rem;
    font-weight: 800;
    margin-bottom: 1.5rem;
}

.logistics-step-title {
    font-size: 1.25rem;
    margin-bottom: 1rem;
    font-weight: 800;
}

.logistics-step-description {
    color: #6b7280;
    line-height: 1.625;
        padding-left: 0rem;
        padding-right: 0rem;
}
@media (min-width: 768px) {
    .logistics-step-description {
    padding-left: 1rem;
    padding-right: 1rem;
    }
}

@media (min-width: 768px) {
    .logistics-section {
        padding-top: 8rem;
        padding-bottom: 8rem;
    }
    
    .logistics-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

/* Channels Section */
.channels-section {
    padding-top: 5rem;
    padding-bottom: 5rem;
    background: linear-gradient(135deg, #fff5f5, #f8f9ff);
}

.channels-content {
    max-width: 72rem;
    margin: 0 auto;
}

.channels-header {
    text-align: center;
    margin-bottom: 4rem;
}

.channels-subtitle {
    font-size: 1.125rem;
    color: #6b7280;
    max-width: 48rem;
    margin: 0 auto;
    line-height: 1.625;
}

.channels-grid {
    display: grid;
    gap: 2rem;
}

.channel-card {
    background-color: white;
    border-radius: 1rem;
    padding: 2rem;
    box-shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
    display: flex;
    flex-direction: column;
    min-height: 550px;
    transition: all 0.3s;
}

.channel-card:hover {
    box-shadow: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
    transform: translateY(-0.5rem);
}

.channel-card-online {
    border-top: 4px solid #c41e3a;
}

.channel-card-offline {
    border-top: 4px solid #003478;
}

.channel-header {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin-bottom: 2rem;
}

.channel-icon {
    width: 3rem;
    height: 3rem;
    border-radius: 0.75rem;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    flex-shrink: 0;
}

.channel-icon-red {
    background: linear-gradient(135deg, #c41e3a, #ff6b7a);
}

.channel-icon-blue {
    background: linear-gradient(135deg, #003478, #0066cc);
}

.channel-title {
    font-size: 1.5rem;
    flex-grow: 1;
    font-weight: 500;
}

.channel-badge {
    padding: 0.25rem 1rem;
    border-radius: 9999px;
    font-size: 0.875rem;
}

.channel-badge-red {
    background-color: #fee2e2;
    color: #c41e3a;
}

.channel-badge-blue {
    background-color: #dbeafe;
    color: #003478;
}

/* Platforms Grid */
.platforms-grid {
    display: flex;
    flex-direction: column;
    gap: 1.25rem;
    margin-bottom: 2rem;
    flex-grow: 1;
    justify-content: center;
}

.platform-row {
    display: flex;
    gap: 1.25rem;
}

.platform-item {
    flex: 1;
    background-color: #f9fafb;
    border-radius: 0.75rem;
    padding: 1rem;
    text-align: center;
    transition: all 0.3s;
    cursor: pointer;
}

.platform-item:hover {
    background-color: #fee2e2;
    transform: translateY(-0.25rem);
}

.platform-logo {
    width: 3rem;
    height: 3rem;
    margin: 0 auto 0.5rem;
    border-radius: 0.75rem;
    object-fit: cover;
}

.platform-name {
    font-size: 1rem;
    margin-bottom: 0.25rem;
    font-weight: 800;
}

.platform-type {
    font-size: 0.875rem;
    color: #6b7280;
}

/* Stores List */
.stores-list {
    display: flex;
    flex-direction: column;
    gap: 1.25rem;
    margin-bottom: 2rem;
    flex-grow: 1;
    justify-content: center;
}

.store-item {
    display: flex;
    gap: 1rem;
    background-color: #f9fafb;
    border-radius: 0.75rem;
    padding: 1.25rem;
    transition: all 0.3s;
    cursor: pointer;
}

.store-item:hover {
    background-color: #fee2e2;
    transform: translateX(0.25rem);
}

.store-icon {
    width: 3rem;
    height: 3rem;
    background-color: white;
    border-radius: 0.75rem;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #003478;
    flex-shrink: 0;
}

.store-info {
    flex-grow: 1;
}

.store-name {
    font-size: 1.125rem;
    margin-bottom: 0.5rem;
    font-weight: 500;
}

.store-address {
    font-size: 0.875rem;
    color: #6b7280;
    margin-bottom: 0.75rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.store-address svg {
    color: #c41e3a;
}

.store-tags {
    display: flex;
    gap: 0.5rem;
    flex-wrap: wrap;
}

.store-tag {
    background-color: white;
    color: #003478;
    padding: 0.25rem 0.75rem;
    border-radius: 0.5rem;
    font-size: 0.75rem;
}

/* Channel Advantage */
.channel-advantage {
    border-radius: 0.75rem;
    padding: 1.25rem;
    margin-top: auto;
}

.channel-advantage-red {
    background-color: #fee2e2;
}

.channel-advantage-blue {
    background-color: #dbeafe;
}

.advantage-title {
    font-size: 1.125rem;
    margin-bottom: 0.5rem;
    color: #c41e3a;
}

.channel-advantage-blue .advantage-title {
    color: #003478;
}

.advantage-text {
    font-size: 0.875rem;
    color: #6b7280;
    margin: 0;
}

@media (min-width: 768px) {
    .channels-section {
        padding-top: 8rem;
        padding-bottom: 8rem;
    }
    
    .channels-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

/* Dropship Section */
.dropship-section {
    background-color: #1a1a1a;
    color: white;
    padding-top: 5rem;
    padding-bottom: 5rem;
}

.dropship-content {
    max-width: 72rem;
    margin: 0 auto;
}

.dropship-grid {
    display: grid;
    gap: 4rem;
    margin-bottom: 3rem;
}

.dropship-text {
    font-size: 1.125rem;
    color: #d1d5db;
    line-height: 1.625;
    margin-bottom: 2rem;
}

.dropship-features {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.dropship-feature {
    display: flex;
    align-items: flex-start;
    gap: 1rem;
}

.dropship-icon {
    width: 3rem;
    height: 3rem;
    border-radius: 0.25rem;
    background-color: rgba(196, 30, 58, 0.2);
    display: flex;
    align-items: center;
    justify-content: center;
    color: #c41e3a;
    flex-shrink: 0;
}

.dropship-feature-title {
    font-size: 1.25rem;
    margin-bottom: 0.5rem;
    font-weight: 800;
}

.dropship-feature-description {
    color: #9ca3af;
}

.dropship-image-container {
    position: relative;
    height: 400px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.dropship-image {
    width: 100%;
    height: 100%;
    object-fit: cover;
    border-radius: 0.25rem;
}

.dropship-cta {
    text-align: center;
    margin-top: 3rem;
}

@media (min-width: 768px) {
    .dropship-section {
        padding-top: 8rem;
        padding-bottom: 8rem;
    }
    
    .dropship-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .dropship-image-container {
        height: 450px;
    }
}

/* B2B Section */
.b2b-section {
    padding-top: 4rem;
    padding-bottom: 6rem;
    background: linear-gradient(to bottom, #f3f4f6, #e5e7eb);
}

.b2b-content {
    max-width: 72rem;
    margin: 0 auto;
}

.b2b-header {
    text-align: center;
    margin-bottom: 3rem;
}

.b2b-title {
    font-size: 2.25rem;
    color: #c41e3a;
    margin-bottom: 1rem;
    font-weight: 800;
}

.b2b-subtitle {
    font-size: 1.125rem;
    color: #6b7280;
    max-width: 48rem;
    margin: 0 auto;
    line-height: 1.625;
}

.b2b-advantages-section,
.b2b-models-section {
    margin-bottom: 4rem;
}

.b2b-section-title {
    font-size: 1.5rem;
    text-align: center;
    margin-bottom: 2.5rem;
    font-weight: 800;
}

/* B2B Advantages Grid */
.b2b-advantages-grid {
    display: grid;
    gap: 2rem;
}

.b2b-advantage-card {
    border-radius: 0.75rem;
    padding: 1.5rem;
    box-shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
    transition: all 0.3s;
    border: 2px solid;
    transform: translateY(0);
}

.b2b-advantage-card:hover {
    box-shadow: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
    transform: translateY(-0.5rem);
}

.b2b-advantage-red {
    background: linear-gradient(135deg, rgba(254, 226, 226, 0.4), white);
    border-color: rgba(254, 202, 202, 0.4);
}

.b2b-advantage-blue {
    background: linear-gradient(135deg, rgba(219, 234, 254, 0.4), white);
    border-color: rgba(191, 219, 254, 0.4);
}

.b2b-advantage-green {
    background: linear-gradient(135deg, rgba(209, 250, 229, 0.4), white);
    border-color: rgba(167, 243, 208, 0.4);
}

.b2b-advantage-orange {
    background: linear-gradient(135deg, rgba(254, 215, 170, 0.4), white);
    border-color: rgba(253, 230, 138, 0.4);
}

.b2b-advantage-icon {
    width: 3.5rem;
    height: 3.5rem;
    border-radius: 0.75rem;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    margin: 0 auto 1rem;
}

.b2b-icon-red {
    background: linear-gradient(135deg, #c41e3a, #ff6b7a);
}

.b2b-icon-blue {
    background: linear-gradient(135deg, #003478, #0066cc);
}

.b2b-icon-green {
    background: linear-gradient(135deg, #10b981, #34d399);
}

.b2b-icon-orange {
    background: linear-gradient(135deg, #f59e0b, #fbbf24);
}

.b2b-advantage-title {
    font-size: 1.125rem;
    margin-bottom: 0.75rem;
    text-align: center;
    font-weight: 800;
}

.b2b-advantage-description {
    color: #6b7280;
    text-align: center;
    font-size: 0.875rem;
    line-height: 1.625;
}

/* B2B Models Grid */
.b2b-models-grid {
    display: grid;
    gap: 2rem;
}

.b2b-model-card {
    /* No background on parent, children will have backgrounds */
}

.b2b-model-image {
    position: relative;
    height: 12rem;
    border-radius: 0.75rem;
    overflow: hidden;
    margin-bottom: 1rem;
    box-shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
}

.model-image {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.3s;
}

.b2b-model-card:hover .model-image {
    transform: scale(1.1);
}

.model-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(to top, rgba(0,0,0,0.6), transparent);
}

.model-title {
    position: absolute;
    bottom: 1rem;
    left: 1rem;
    right: 1rem;
}

.model-title h4 {
    font-size: 1.25rem;
    color: white;
    font-weight: 800;
}

.b2b-model-content {
    background-color: #f9fafb;
    border-radius: 0.75rem;
    padding: 1.5rem;
}

.model-description {
    color: #4b5563;
    margin-bottom: 1rem;
    line-height: 1.625;
}

.model-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
}

.model-tag {
    padding: 0.25rem 0.75rem;
    border-radius: 0.5rem;
    font-size: 0.875rem;
    border: 1px solid;
}

.model-tag-red {
    background-color: rgb(254, 226, 226, 0.4);
    color: #c41e3a;
    border-color: #fecaca;
}

.model-tag-blue {
    background-color: rgb(219, 234, 254, 0.4);
    color: #003478;
    border-color: #bfdbfe;
}

.model-tag-green {
    background-color: rgb(209, 250, 229, 0.4);
    color: #10b981;
    border-color: #a7f3d0;
}

.b2b-cta {
    text-align: center;
}

@media (min-width: 768px) {
    .b2b-section {
        padding-top: 6rem;
        padding-bottom: 6rem;
    }
    
    .b2b-title {
        font-size: 3rem;
    }
    
    .b2b-subtitle {
        font-size: 1.25rem;
    }
    
    .b2b-section-title {
        font-size: 1.875rem;
    }
}

@media (min-width: 1024px) {
    .b2b-advantages-grid {
        grid-template-columns: repeat(4, 1fr);
    }
    
    .b2b-models-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

/* QR Section */
.qr-section {
    padding-top: 5rem;
    padding-bottom: 5rem;
    background-color: white;
}

.qr-content {
    max-width: 64rem;
    margin: 0 auto;
    text-align: center;
}

.qr-subtitle {
    text-align: center;
    font-size: 1.125rem;
    color: #4b5563;
    margin-bottom: 4rem;
    max-width: 48rem;
    margin-left: auto;
    margin-right: auto;
    line-height: 1.625;
}

.qr-grid {
    display: grid;
    gap: 3rem;
    margin-bottom: 3rem;
}

.qr-card {
    background-color: #f5f3ed;
    border-radius: 0.5rem;
    padding: 2.5rem;
}

.qr-image-container {
    background-color: white;
    padding: 1rem;
    border-radius: 0.25rem;
    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    border: 4px solid black;
    display: inline-block;
    margin-bottom: 1.5rem;
}

.qr-image {
    width: 8rem;
    height: 8rem;
}

.qr-title {
    font-size: 1.25rem;
    margin-bottom: 0.5rem;
    font-weight: 800;
}

.qr-description {
    color: #6b7280;
}

@media (min-width: 768px) {
    .qr-section {
        padding-top: 8rem;
        padding-bottom: 8rem;
    }
    
    .qr-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

/* Footer */
.footer {
    background-color: #1a1a1a;
    color: #9ca3af;
    padding-top: 4rem;
    padding-bottom: 4rem;
}

.footer-content {
    max-width: 72rem;
    margin: 0 auto;
}

.footer-main {
    margin-bottom: 2.5rem;
}

.footer-logo {
    height: 2.5rem;
    margin-bottom: 0.75rem;
}

.footer-slogan {
    font-size: 0.875rem;
    line-height: 1.625;
    color: #d1d5db;
    margin-bottom: 1.5rem;
    letter-spacing: 0.05em;
}

.footer-info {
    font-size: 0.875rem;
    color: #9ca3af;
}

.footer-info p {
    margin-bottom: 0.5rem;
}

.footer-company {
    color: white;
    font-weight: 800;
}

.footer-bottom {
    padding-top: 2rem;
    border-top: 1px solid #374151;
    text-align: center;
    font-size: 0.875rem;
    color: #9ca3af;
}

/* Modal */
.modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    z-index: 50;
    align-items: center;
    justify-content: center;
    padding: 1rem;
}

.modal.active {
    display: flex;
}

.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: rgba(0,0,0,0.5);
}

.modal-content {
    position: relative;
    background-color: white;
    border-radius: 0.5rem;
    box-shadow: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
    max-width: 28rem;
    width: 100%;
    max-height: 90vh;
    overflow-y: auto;
}

.modal-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 1.5rem;
}

.modal-title {
    font-size: 1.5rem;
    font-weight: 800;
}

.modal-close {
    background: none;
    border: none;
    color: #9ca3af;
    cursor: pointer;
    padding: 0;
    display: flex;
    align-items: center;
    transition: color 0.3s;
}

.modal-close:hover {
    color: #6b7280;
}

.modal-form {
    padding: 1.5rem;
}

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

.form-label {
    display: block;
    font-size: 0.875rem;
    margin-bottom: 0.5rem;
    font-weight: 800;
}

.form-input,
.form-textarea {
    width: 100%;
    padding: 0.75rem 1rem;
    border: 1px solid #d1d5db;
    border-radius: 0.5rem;
    font-size: 1rem;
    transition: border-color 0.3s;
}

.form-input:focus,
.form-textarea:focus {
    outline: none;
    border-color: #c41e3a;
}

.form-textarea {
    resize: vertical;
    font-family: inherit;
}

.entity-type-buttons {
    display: flex;
    gap: 1rem;
}

.entity-type-btn {
    flex: 1;
    padding: 0.75rem 1rem;
    border-radius: 0.5rem;
    border: 2px solid #d1d5db;
    background-color: white;
    cursor: pointer;
    transition: all 0.3s;
}

.entity-type-btn:hover {
    border-color: #9ca3af;
}

.entity-type-btn.active {
    border-color: #c41e3a;
    background-color: #fee2e2;
    color: #c41e3a;
    font-weight: 800;
}

.form-buttons {
    display: flex;
    gap: 1rem;
}

.btn-primary,
.btn-secondary {
    flex: 1;
    padding: 0.75rem 1.5rem;
    border-radius: 0.5rem;
    border: none;
    cursor: pointer;
    font-size: 1rem;
    transition: all 0.3s;
}

.btn-primary {
    background-color: #c41e3a;
    color: white;
    font-weight: 800;
}

.btn-primary:hover {
    background-color: #93192A;
}

.btn-secondary {
    background-color: white;
    color: #374151;
    border: 1px solid #d1d5db;
}

.btn-secondary:hover {
    background-color: #f9fafb;
}

/* Smooth scrolling */
html {
    scroll-behavior: smooth;
}

/* Responsive text sizes */
@media (max-width: 768px) {
    .hero-title {
        font-size: 3rem;
    }
    
    .hero-subtitle {
        font-size: 1.125rem;
    }
    
    .section-title,
    .section-title-white {
        font-size: 2rem;
    }
    
    .b2b-title {
        font-size: 2rem;
    }
    
    .b2b-section-title {
        font-size: 1.5rem;
    }
}

 /* 轮播过渡效果优化 */
.slide {
    transition-property: opacity, transform;
    transition-timing-function: cubic-bezier(0.4, 0, 0.2, 1);
    transition-duration: 700ms;
}