/* 基础样式 */
:root {
    --primary-color: #4361ee;
    --primary-dark: #3a56d4;
    --secondary-color: #4cc9f0;
    --accent-color: #f72585;
    --light-color: #f8f9fa;
    --dark-color: #212529;
    --gray-color: #6c757d;
    --light-gray: #e9ecef;
    --success-color: #4bb543;
    --warning-color: #ffc107;
    --danger-color: #dc3545;
    --border-radius: 12px;
    --border-radius-sm: 8px;
    --box-shadow: 0 8px 24px rgba(0, 0, 0, 0.1);
    --box-shadow-sm: 0 4px 12px rgba(0, 0, 0, 0.08);
    --transition: all 0.3s ease;
    --transition-fast: all 0.15s ease;
    --primary-color: #4361ee;
    --primary-light: #4cc9f0;
    --secondary-color: #7209b7;
    --accent-color: #f72585;
    --dark-color: #2b2d42;
    --light-color: #f8f9fa;
    --gray-color: #adb5bd;
    --text-color: #333;
    --text-light: #6c757d;
    --white: #fff;
    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.1);
    --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.15);
    --shadow-lg: 0 8px 24px rgba(0, 0, 0, 0.2);
    --border-radius: 8px;
    --text-color: #333;
}

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

body {
    font-family: 'PingFang SC', 'Microsoft YaHei', sans-serif;
    color: var(--dark-color);
    line-height: 1.6;
    background-color: #f5f7fa;
    overflow-x: hidden;
}

a {
    text-decoration: none;
    color: var(--primary-color);
    transition: var(--transition);
}

a:hover {
    color: var(--primary-dark);
}

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

.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 12px 24px;
    border-radius: var(--border-radius-sm);
    font-weight: 600;
    text-align: center;
    transition: var(--transition);
    cursor: pointer;
    border: 2px solid transparent;
    font-size: 1rem;
}

.btn-primary {
    background-color: var(--primary-color);
    color: white;
    border-color: var(--primary-color);
}

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

.btn-outline {
    background-color: transparent;
    color: var(--primary-color);
    border-color: var(--primary-color);
}

.btn-outline:hover {
    background-color: rgba(67, 97, 238, 0.1);
    transform: translateY(-2px);
}

.btn-lg {
    padding: 16px 32px;
    font-size: 1.1rem;
}

.section-title {
    font-size: 2.5rem;
    margin-bottom: 2.5rem;
    text-align: center;
    color: var(--dark-color);
    position: relative;
    padding-bottom: 20px;
    font-weight: 700;
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 100px;
    height: 5px;
    background: linear-gradient(90deg, var(--primary-color), var(--secondary-color));
    border-radius: 3px;
}

.text-highlight {
    color: var(--primary-color);
    position: relative;
    display: inline-block;
}

.text-highlight::after {
    content: '';
    position: absolute;
    bottom: 5px;
    left: 0;
    width: 100%;
    height: 10px;
    background-color: rgba(67, 97, 238, 0.2);
    z-index: -1;
    border-radius: 5px;
}

/* 顶部通知栏 */
.top-bar {
    background-color: var(--dark-color);
    color: white;
    padding: 10px 0;
    font-size: 0.9rem;
    position: relative;
    z-index: 1001;
}

.top-bar .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.top-bar-link {
    color: white;
    font-weight: 600;
    display: flex;
    align-items: center;
    gap: 5px;
}

.top-bar-link:hover {
    color: var(--secondary-color);
}

/* 导航栏 */
.header {
    background-color: white;
    box-shadow: var(--box-shadow-sm);
    position: sticky;
    top: 0;
    z-index: 1000;
    padding: 15px 0;
    transition: var(--transition);
}

.header.scrolled {
    padding: 10px 0;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
}

.header .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    position: relative;
}

.logo-badge {
    position: absolute;
    top: -8px;
    right: -25px;
    background-color: var(--accent-color);
    color: white;
    font-size: 0.6rem;
    padding: 2px 6px;
    border-radius: 10px;
    font-weight: bold;
}

.main-nav ul {
    display: flex;
    list-style: none;
    gap: 5px;
}

.main-nav li {
    position: relative;
}

.main-nav a {
    color: var(--dark-color);
    font-weight: 500;
    padding: 10px 15px;
    border-radius: var(--border-radius-sm);
    transition: var(--transition);
}

.main-nav a:hover, .main-nav a.active {
    color: var(--primary-color);
    background-color: rgba(67, 97, 238, 0.1);
}

.dropdown {
    position: relative;
}

.dropdown-menu {
    position: absolute;
    top: 100%;
    left: 0;
    background-color: white;
    border-radius: var(--border-radius-sm);
    box-shadow: var(--box-shadow);
    padding: 10px 0;
    min-width: 200px;
    opacity: 0;
    visibility: hidden;
    transform: translateY(10px);
    transition: var(--transition);
    z-index: 100;
}

.dropdown:hover .dropdown-menu {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.dropdown-menu a {
    display: block;
    padding: 10px 20px;
    color: var(--dark-color);
}

.dropdown-menu a:hover {
    background-color: rgba(67, 97, 238, 0.1);
}

.user-actions {
    display: flex;
    gap: 15px;
}

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

/* 移动菜单 */
.mobile-menu {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100vh;
    background-color: var(--primary-color);
    z-index: 2000;
    transform: translateX(100%);
    transition: var(--transition);
    display: flex;
    flex-direction: column;
    padding: 20px;
    color: white;
}

.mobile-menu.open {
    transform: translateX(0);
}

.mobile-menu-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-bottom: 20px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.2);
    margin-bottom: 20px;
}

.mobile-menu-close {
    background: none;
    border: none;
    color: white;
    font-size: 1.5rem;
    cursor: pointer;
}

.mobile-menu-content {
    flex: 1;
    overflow-y: auto;
}

.mobile-menu-content a {
    display: block;
    color: white;
    padding: 15px 0;
    font-size: 1.1rem;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    display: flex;
    align-items: center;
    gap: 10px;
}

.mobile-menu-content a.active {
    font-weight: bold;
}

.mobile-menu-actions {
    display: flex;
    flex-direction: column;
    gap: 15px;
    margin-top: 30px;
}

/* 英雄区域 */
.hero-section {
    padding: 100px 0 60px;
    position: relative;
    overflow: hidden;
}

.hero-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, #f5f7fa 0%, #e4e8ed 100%);
    z-index: -1;
}

.hero-content {
    max-width: 600px;
}

.hero-section h1 {
    font-size: 3.5rem;
    margin-bottom: 20px;
    line-height: 1.2;
    font-weight: 800;
}

.hero-section .subtitle {
    font-size: 1.3rem;
    color: var(--gray-color);
    margin-bottom: 40px;
}

.search-container {
    margin-bottom: 50px;
}

.search-box {
    position: relative;
    display: flex;
    margin-bottom: 15px;
    border-radius: var(--border-radius);
    overflow: hidden;
    box-shadow: var(--box-shadow);
}

.search-box input {
    flex: 1;
    padding: 20px 25px;
    border: none;
    font-size: 1.1rem;
    transition: var(--transition);
}

.search-box input:focus {
    outline: none;
}

.search-btn {
    padding: 0 30px;
    background-color: var(--primary-color);
    color: white;
    border: none;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
}

.search-btn:hover {
    background-color: var(--primary-dark);
}

.search-suggestions {
    display: flex;
    flex-wrap: wrap;
    gap: 15px;
}

.suggestion-group {
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    gap: 10px;
}

.suggestion-title {
    color: var(--gray-color);
    font-size: 0.9rem;
}

.search-suggestions a {
    color: var(--gray-color);
    font-size: 0.9rem;
    padding: 6px 12px;
    border-radius: 20px;
    background-color: rgba(108, 117, 125, 0.1);
    transition: var(--transition);
}

.search-suggestions a:hover {
    background-color: var(--primary-color);
    color: white;
    transform: translateY(-2px);
}

.hero-stats {
    display: flex;
    gap: 30px;
    margin-top: 40px;
}

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

.stat-number {
    font-size: 2rem;
    font-weight: 700;
    color: var(--primary-color);
    margin-bottom: 5px;
}

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

.hero-image {
    position: absolute;
    right: 0;
    top: 50%;
    transform: translateY(-50%);
    width: 50%;
    max-width: 700px;
    border-radius: var(--border-radius);
    overflow: hidden;
    box-shadow: var(--box-shadow);
}

.hero-main-image {
    width: 100%;
    height: auto;
    display: block;
}

.photo-badge {
    position: absolute;
    top: 20px;
    padding: 8px 15px;
    background-color: white;
    border-radius: 20px;
    font-weight: 600;
    box-shadow: var(--box-shadow-sm);
}

.photo-badge.before {
    left: 20px;
    color: var(--primary-color);
}

.photo-badge.after {
    right: 20px;
    color: var(--accent-color);
}

.compare-slider {
    position: absolute;
    top: 0;
    left: 50%;
    width: 4px;
    height: 100%;
    background-color: white;
    cursor: ew-resize;
    z-index: 10;
}

.compare-handle {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 40px;
    height: 40px;
    background-color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.2);
}

/* 快速制作区域 */
.quick-make-section {
    padding: 80px 0;
    background-color: white;
}

.steps-container {
    display: flex;
    justify-content: center;
    gap: 20px;
    margin-bottom: 40px;
}

.step-card {
    flex: 1;
    max-width: 300px;
    background-color: white;
    border-radius: var(--border-radius);
    padding: 30px;
    text-align: center;
    box-shadow: var(--box-shadow-sm);
    transition: var(--transition);
    position: relative;
}

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

.step-number {
    width: 40px;
    height: 40px;
    background-color: var(--primary-color);
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: bold;
    margin: 0 auto 20px;
}

.step-icon {
    width: 60px;
    height: 60px;
    background-color: rgba(67, 97, 238, 0.1);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 20px;
    font-size: 1.5rem;
    color: var(--primary-color);
}

.step-card h3 {
    margin-bottom: 15px;
    color: var(--dark-color);
}

.step-card p {
    color: var(--gray-color);
    font-size: 0.95rem;
}

.step-arrow {
    position: absolute;
    top: 50%;
    right: -30px;
    transform: translateY(-50%);
    color: var(--gray-color);
    font-size: 1.5rem;
}

.step-card:last-child .step-arrow {
    display: none;
}

.quick-make-actions {
    display: flex;
    justify-content: center;
    gap: 20px;
}

/* APP下载区域 */
.app-section {
    padding: 100px 0;
    background: linear-gradient(135deg, #f8f9fa 0%, #e9ecef 100%);
    position: relative;
    overflow: hidden;
}

.app-section .container {
    display: flex;
    align-items: center;
    gap: 60px;
}

.app-content {
    flex: 1;
    max-width: 600px;
}

.app-section .section-title {
    text-align: left;
    padding-bottom: 15px;
    margin-bottom: 20px;
}

.app-section .section-title::after {
    left: 0;
    transform: none;
}

.app-subtitle {
    font-size: 1.2rem;
    color: var(--gray-color);
    margin-bottom: 30px;
}

.app-features {
    margin-bottom: 40px;
}

.app-feature {
    display: flex;
    align-items: flex-start;
    gap: 15px;
    margin-bottom: 25px;
    padding: 15px;
    border-radius: var(--border-radius-sm);
    transition: var(--transition);
}

.app-feature:hover {
    background-color: rgba(255, 255, 255, 0.7);
    transform: translateX(5px);
}

.app-feature i {
    font-size: 1.5rem;
    color: var(--primary-color);
    margin-top: 3px;
}

.app-feature h4 {
    margin-bottom: 5px;
    color: var(--dark-color);
}

.app-feature p {
    color: var(--gray-color);
    font-size: 0.95rem;
}

.download-badges {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
  
    height: 160px;
    gap: 15px;
  


}

.down_text{
    border-radius: 8px;padding: 5px 20px 5px 20px;background-color: #4361ee;color: white;display: flex;
    align-items: center;font-weight: 550;
}

.down_center{
    padding: 10px 0 10px 0;text-align: center;justify-content: center;
}

.download-badge {
    display: inline-block;
    height: 60px;
    transition: var(--transition);
    position: relative;
    width: 180px;
   
}

.download-badge:hover {
    transform: translateY(-3px);
}

.download-badge img {
    height: 100%;
    width: auto;
    border-radius: var(--border-radius-sm);
}

.qrcode-popup {
    position: absolute;
    bottom: calc(100% + 15px);
    left: 50%;
    transform: translateX(-50%);
    background-color: white;
    padding: 20px;
    border-radius: var(--border-radius);
    box-shadow: var(--box-shadow);
    width: 200px;
    opacity: 0;
    visibility: hidden;
    transition: var(--transition);
    z-index: 10;
}

.qrcode-popup::after {
    content: '';
    position: absolute;
    top: 100%;
    left: 50%;
    transform: translateX(-50%);
    border-width: 10px;
    border-style: solid;
    border-color: white transparent transparent transparent;
}

.qrcode-trigger:hover .qrcode-popup {
    opacity: 1;
    visibility: visible;
    transform: translateX(-50%) translateY(-5px);
}

.qrcode-popup img {
    width: 100%;
    height: auto;
    margin-bottom: 10px;
}

.qrcode-popup p {
    text-align: center;
    font-size: 0.9rem;
    color: var(--gray-color);
}

.app-preview {
    flex: 1;
    position: relative;
    min-height: 500px;
}

.phone-mockup {
    position: relative;
    width: 300px;
    margin: 0 auto;
}

.phone-screen {
    width: 100%;
    height: auto;
    position: relative;
    z-index: 2;
}

.app-screenshots {
    position: absolute;
    top: 5%;
    left: 7.5%;
    width: 85%;
    height: 90%;
    border-radius: 25px;
    overflow: hidden;
    z-index: 1;
}

.app-screenshots img {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    opacity: 0;
    transition: opacity 0.5s ease;
}

.app-screenshots img.active {
    opacity: 1;
}

/* 证件照分类 */
.categories-section {
    padding: 80px 0;
    background-color: white;
}

.categories-tabs {
    display: flex;
    justify-content: center;
    gap: 10px;
    margin-bottom: 30px;
    flex-wrap: wrap;
}

.tab-btn {
    padding: 10px 20px;
    background-color: transparent;
    border: none;
    border-radius: 30px;
    font-weight: 500;
    cursor: pointer;
    transition: var(--transition);
}

.tab-btn.active {
    background-color: var(--primary-color);
    color: white;
}

.tab-btn:not(.active):hover {
    background-color: rgba(67, 97, 238, 0.1);
}

.tab-pane {
    display: none;
}

.tab-pane.active {
    display: block;
}

.category-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
    gap: 25px;
}

.category-item {
    background-color: white;
    border-radius: var(--border-radius);
    overflow: hidden;
    box-shadow: var(--box-shadow-sm);
    transition: var(--transition);
    position: relative;
}

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

.category-img {
    position: relative;
    height: 180px;
    overflow: hidden;
}

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

.category-item:hover .category-img img {
    transform: scale(1.05);
}

.category-badge {
    position: absolute;
    top: 15px;
    right: 15px;
    background-color: var(--primary-color);
    color: white;
    padding: 4px 10px;
    border-radius: 20px;
    font-size: 0.8rem;
    font-weight: 500;
}

.category-item h3 {
    padding: 15px 20px 5px;
    color: var(--dark-color);
}

.category-item p {
    padding: 0 20px 15px;
    color: var(--gray-color);
    font-size: 0.9rem;
}

.hover-content {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(67, 97, 238, 0.8);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    color: white;
    opacity: 0;
    transition: var(--transition);
}

.hover-content span {
    font-size: 1.2rem;
    font-weight: 500;
    margin-bottom: 10px;
}

.hover-content i {
    font-size: 1.5rem;
}

.category-item:hover .hover-content {
    opacity: 1;
}

.view-all {
    text-align: center;
    margin-top: 40px;
}

.view-all-link {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    color: var(--primary-color);
    font-weight: 500;
    transition: var(--transition);
}

.view-all-link:hover {
    color: var(--primary-dark);
    gap: 12px;
}

/* AI功能展示 */
.ai-features-section {
    padding: 80px 0;
    background-color: #f8f9fa;
}

.ai-features {
    display: flex;
    gap: 30px;
}

.ai-feature-left, .ai-feature-right {
    flex: 1;
}

.ai-feature-center {
    flex: 1.5;
    display: flex;
    align-items: center;
    justify-content: center;
}

.feature-card {
    display: flex;
    align-items: flex-start;
    gap: 15px;
    padding: 20px;
    border-radius: var(--border-radius-sm);
    margin-bottom: 20px;
    cursor: pointer;
    transition: var(--transition);
}

.feature-card.active {
    background-color: white;
    box-shadow: var(--box-shadow-sm);
}

.feature-card:not(.active):hover {
    background-color: rgba(255, 255, 255, 0.7);
}

.feature-icon {
    width: 50px;
    height: 50px;
    background-color: rgba(67, 97, 238, 0.1);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.2rem;
    color: var(--primary-color);
    flex-shrink: 0;
    transition: var(--transition);
}

.feature-card.active .feature-icon {
    background-color: var(--primary-color);
    color: white;
}

.feature-content h3 {
    margin-bottom: 10px;
    color: var(--dark-color);
}

.feature-content p {
    color: var(--gray-color);
    font-size: 0.95rem;
}

.feature-preview {
    width: 100%;
    max-width: 500px;
    border-radius: var(--border-radius);
    overflow: hidden;
    box-shadow: var(--box-shadow);
    position: relative;
    height: 400px;
}

.feature-preview img {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    opacity: 0;
    transition: opacity 0.5s ease;
}

.feature-preview img.active {
    opacity: 1;
}

/* 国家/地区选择 */
.countries-section {
    padding: 80px 0;
    background-color: white;
}

.countries-search {
    max-width: 500px;
    margin: 0 auto 40px;
    position: relative;
}

.countries-search input {
    width: 100%;
    padding: 15px 20px;
    border: 1px solid var(--light-gray);
    border-radius: var(--border-radius);
    font-size: 1rem;
    transition: var(--transition);
}

.countries-search input:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(67, 97, 238, 0.2);
}

.countries-search button {
    position: absolute;
    right: 15px;
    top: 50%;
    transform: translateY(-50%);
    background: none;
    border: none;
    color: var(--gray-color);
    cursor: pointer;
}

.countries-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 30px;
}

.country-group h3 {
    margin-bottom: 15px;
    color: var(--dark-color);
    padding-left: 10px;
    border-left: 4px solid var(--primary-color);
}

.country-list {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(120px, 1fr));
    gap: 15px;
}

.country-item {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 10px;
    border-radius: var(--border-radius-sm);
    transition: var(--transition);
}

.country-item:hover {
    background-color: rgba(67, 97, 238, 0.1);
}

.country-item img {
    width: 30px;
    height: 20px;
    object-fit: cover;
    border-radius: 2px;
}

/* 用户评价 */
.testimonials-section {
    padding: 80px 0;
    background-color: #f8f9fa;
}

.testimonials-slider {
    display: flex;
    gap: 30px;
    overflow-x: auto;
    padding: 20px 0;
    scroll-snap-type: x mandatory;
    scrollbar-width: none;
}

.testimonials-slider::-webkit-scrollbar {
    display: none;
}

.testimonial-card {
    min-width: 350px;
    background-color: white;
    border-radius: var(--border-radius);
    padding: 30px;
    box-shadow: var(--box-shadow-sm);
    scroll-snap-align: start;
}

.testimonial-rating {
    color: var(--warning-color);
    margin-bottom: 15px;
}

.testimonial-text {
    font-style: italic;
    margin-bottom: 20px;
    color: var(--dark-color);
}

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

.testimonial-author img {
    width: 50px;
    height: 50px;
    border-radius: 50%;
    object-fit: cover;
}

.testimonial-author h4 {
    margin-bottom: 5px;
    color: var(--dark-color);
}

.testimonial-author span {
    font-size: 0.9rem;
    color: var(--gray-color);
}

/* 常见问题 */
.faq-section {
    padding: 80px 0;
    background-color: white;
}

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

.faq-item {
    margin-bottom: 15px;
    border-radius: var(--border-radius-sm);
    overflow: hidden;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.05);
}

.faq-question {
    width: 100%;
    padding: 20px;
    background-color: white;
    border: none;
    display: flex;
    justify-content: space-between;
    align-items: center;
    cursor: pointer;
    transition: var(--transition);
}

.faq-question:hover {
    background-color: #f8f9fa;
}

.faq-question i {
    transition: var(--transition);
}

.faq-question.active i {
    transform: rotate(180deg);
}

.faq-answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease;
    background-color: #f8f9fa;
}

.faq-answer p {
    padding: 0 20px 20px;
    color: var(--gray-color);
}

/* 底部CTA */
.cta-section {
    padding: 80px 0;
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 100%);
    color: white;
    text-align: center;
}

.cta-section h2 {
    font-size: 2.5rem;
    margin-bottom: 15px;
    color: white;
}

.cta-section p {
    font-size: 1.2rem;
    margin-bottom: 30px;
    opacity: 0.9;
}

.cta-actions {
    display: flex;
    justify-content: center;
    gap: 20px;
}

.cta-section .btn-outline {
    color: white;
    border-color: white;
}

.cta-section .btn-outline:hover {
    background-color: rgba(255, 255, 255, 0.1);
}

/* 页脚 */
.footer {
    background-color: var(--dark-color);
    color: white;
    padding: 60px 0 0;
}

.footer-content {
    display: flex;
    flex-direction: column;
}

.footer-main {
    display: flex;
    flex-wrap: wrap;
    gap: 40px;
    margin-bottom: 40px;
}

.footer-logo {
    flex: 1;
    min-width: 250px;
}

.footer-logo img {
    margin-bottom: 15px;
}

.footer-logo p {
    color: rgba(255, 255, 255, 0.7);
    margin-bottom: 20px;
}

.footer-social {
    display: flex;
    flex-direction: column;
    gap: 15px;
    
}
.footer-social a {
    color: var(--dark-color);
    text-decoration: none;
    font-size: 1.2rem;
}



.footer-links {
    flex: 2;
    display: flex;
    flex-wrap: wrap;
    gap: 40px;
}

.links-column {
    min-width: 150px;
}

.links-column h4 {
    color: white;
    margin-bottom: 20px;
    font-size: 1.1rem;
    position: relative;
    padding-bottom: 10px;
}

.links-column h4::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 40px;
    height: 3px;
    background-color: var(--accent-color);
}

.links-column ul {
    list-style: none;
}

.links-column li {
    margin-bottom: 12px;
}

.links-column a {
    color: rgba(255, 255, 255, 0.7);
    font-size: 0.95rem;
    transition: var(--transition);
}

.links-column a:hover {
    color: white;
    padding-left: 5px;
}

.footer-app {
    flex: 1;
    min-width: 250px;
}

.footer-app h4 {
    color: white;
    margin-bottom: 20px;
    font-size: 1.1rem;
    position: relative;
    padding-bottom: 10px;
}

.footer-app h4::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 40px;
    height: 3px;
    background-color: var(--accent-color);
}

.footer-download-badges {
    display: flex;
    flex-direction: column;
    gap: 10px;
    margin-bottom: 20px;
}

.footer-download-badges a {
    display: block;
    height: 40px;
}

.footer-download-badges img {
    height: 100%;
    width: auto;
}

/* .footer-qrcode {
    text-align: center;
} */

.footer-qrcode img {
    width: 120px;
    height: 120px;
    margin-bottom: 5px;
    background-color: white;
    padding: 10px;
    border-radius: var(--border-radius-sm);
}

.footer-qrcode p {
    color: rgba(255, 255, 255, 0.7);
    font-size: 0.9rem;
}

.footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    padding: 20px 0;
    display: flex;
    flex-wrap: wrap;
    justify-content: space-between;
    align-items: center;
    gap: 20px;
}

.footer-copyright {
    color: rgba(255, 255, 255, 0.5);
    font-size: 0.9rem;
}

.footer-legal {
    display: flex;
    gap: 20px;
}

.footer-legal a {
    color: rgba(255, 255, 255, 0.7);
    font-size: 0.9rem;
    transition: var(--transition);
}

.footer-legal a:hover {
    color: white;
}

/* 返回顶部按钮 */
.back-to-top {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 50px;
    height: 50px;
    background-color: var(--primary-color);
    color: white;
    border: none;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.2rem;
    cursor: pointer;
    opacity: 0;
    visibility: hidden;
    transform: translateY(20px);
    transition: var(--transition);
    box-shadow: var(--box-shadow-sm);
    z-index: 100;
}

.back-to-top.visible {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.back-to-top:hover {
    background-color: var(--primary-dark);
    transform: translateY(-3px);
}

/* 响应式设计 */
@media (max-width: 1200px) {
    .hero-section h1 {
        font-size: 3rem;
    }
    
    .hero-image {
        width: 45%;
    }
    
    .ai-features {
        flex-direction: column;
    }
    
    .ai-feature-left, .ai-feature-right, .ai-feature-center {
        flex: auto;
        width: 100%;
    }
    
    .feature-preview {
        max-width: 100%;
        margin: 30px 0;
    }
}

@media (max-width: 992px) {
    .main-nav {
        display: none;
    }
    
    .mobile-menu-btn {
        display: block;
    }
    
    .hero-section .container {
        flex-direction: column;
    }
    
    .hero-content {
        max-width: 100%;
        margin-bottom: 40px;
        text-align: center;
    }
    
    .hero-image {
        position: relative;
        width: 100%;
        top: auto;
        transform: none;
        margin: 0 auto;
    }
    
    .hero-stats {
        justify-content: center;
    }
    
    .steps-container {
        flex-direction: column;
        align-items: center;
    }
    
    .step-card {
        max-width: 100%;
        width: 100%;
    }
    
    .step-arrow {
        display: none;
    }
    
    .app-section .container {
        flex-direction: column;
        gap: 40px;
    }
    
    .app-content {
        max-width: 100%;
        text-align: center;
    }
    
    .app-section .section-title {
        text-align: center;
    }
    
    .app-section .section-title::after {
        left: 50%;
        transform: translateX(-50%);
    }
    
    .app-features {
        max-width: 600px;
        margin-left: auto;
        margin-right: auto;
    }
    
    .download-badges {
        justify-content: center;
        display: flex;
        flex-direction: column;
       

    }
    .down_div{
        margin-top: 100px;
        margin-bottom: 100px;
        display: grid;
        grid-template-columns: 1fr;
        grid-row: auto;
        gap: 20px;
    }
    .footer-app {
        margin-left: auto;
        margin-right: auto;
        text-align: center;
        display: grid;
        gap: 20px;
        
    }
    .download-badge-wxmin{
        display: none;
    }

    .footer-download-badges {
        flex-direction: column;
    }
    .footer-qrcode{
        display: flex;
        justify-content: center;
        align-items: center;
    }
}

@media (max-width: 576px) {
    .hero-stat {
        flex-direction: column;
    }

    .hero-stat-item {
        margin-bottom: 20px
    }
}

@media (max-width: 768px) {
    .hero-stat {
    }

    .footer-app {
        margin-left: auto;
        margin-right: auto;
        text-align: center;
    }

    .footer-download-badges {
        flex-direction: column;
    }
}

@media (max-width: 280px) {
    .hero-stat {
    }

    .footer-app {
        margin-left: auto;
        margin-right: auto;
        text-align: center;
    }

    .footer-download-badges {
        flex-direction: column;
    }
}

@media (max-width: 320px) {
    .hero-stat {
        max-width: 100%;
        margin-bottom: 40px;

        gap: 20px;
     
    }

    .footer-app {
        margin-left: auto;
        margin-right: auto;
        text-align: center;
    }

    .footer-download-badges {
        flex-direction: column;
    }
}

@media (max-width: 480px) {
    .hero-stats {

    }
    
    .footer-app {
        margin-left: 0;
        margin-top: 30px;
        text-align: center;
    }
    
    .footer-download-badges {
        flex-direction: row;
        justify-content: center;
    }
}

@media (max-width: 768px) {
    .section-title {
        font-size: 2rem;
    }
    
    .hero-section h1 {
        font-size: 2.5rem;
    }
    
    .hero-section {
        padding: 80px 0 40px;
    }
    
    .app-section {
        padding: 60px 0;
    }
    
    .app-feature {
        flex-direction: column;
        align-items: center;
        text-align: center;
    }
    
    .download-badge {
        height: 40px;
    }
    
    .phone-mockup {
        width: 250px;
    }
    
    .cta-section h2 {
        font-size: 2rem;
    }
    
    .cta-actions {
        flex-direction: column;
        align-items: center;
    }
}

@media (max-width: 576px) {
    .section-title {
        font-size: 1.8rem;
    }
    
    .hero-section h1 {
        font-size: 2rem;
    }
    
    .hero-section .subtitle {
        font-size: 1.1rem;
    }
    
    .search-box {
        flex-direction: column;
    }
    
    .search-box input {
        padding: 15px;
    }
    
    .search-btn {
        padding: 15px;
        border-radius: 0 0 var(--border-radius) var(--border-radius);
    }
    
    .search-suggestions {
        flex-direction: column;
        align-items: center;
    }
    
    .suggestion-group {
        flex-direction: column;
        align-items: center;
    }
    
    .download-badges {
        flex-direction: column;
        align-items: center;
    }
    
    .download-badge {
        height: 45px;
    }
    
    .qrcode-popup {
        width: 160px;
    }
    
    .testimonial-card {
        min-width: 280px;
    }
    
    .footer-main {
        flex-direction: column;
    }
    
    .footer-links {
        flex-direction: column;
    }
}

.order-prompt{
   position: absolute;bottom: 30px;display: flex; flex-direction: column; margin-top: 20px; width: 60%; height: 300px; padding: 20px 40px 20px 40px; border-radius: 8px; 
}

@media (max-width: 768px) {
    .order-prompt{
        width: 80%;
    }
}
@media (max-width: 576px) {
    .order-prompt{
        width: 90%;
    }
}
@media (max-width: 425px) {
    .order-prompt{
        width: 100%;
    }
}

@media (max-width: 768px) {
    .order-prompt{
        width: 80%;
    }
}
@media (max-width: 576px) {
    .order-prompt{
        width: 90%;
    }
}
@media (max-width: 425px) {
    .order-prompt{
        width: 100%;
    }
}

.order-prompt span{
    font-size: 0.9rem;
    font-weight: 500;
    color: #0b0b0b;
    margin-bottom: 10px;
}