/* 基础样式 */
body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    margin: 0;
    padding: 0;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    box-sizing: border-box;
    background-color: #f8f9fa;
    color: #333;
    overflow-x: hidden;
    overflow-y: auto;
}

body::-webkit-scrollbar {
    display: none;
}

body {
    -ms-overflow-style: none;
    scrollbar-width: none;
}

header {
    background: linear-gradient(135deg, #ffffff 0%, #f8f9fa 100%);
    color: #333;
    padding: 12px 0;
    width: 100%;
    position: fixed;
    top: 0;
    left: 0;
    z-index: 1000;
    height: auto;
    display: flex;
    align-items: center;
    justify-content: center;
    box-sizing: border-box;
    box-shadow: 0 2px 2px rgba(0,0,0,0.08);
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    border-bottom: 1px solid rgba(0,0,0,0.05);
    backdrop-filter: blur(10px);
}

.header-content {
    width: 100%;
    max-width: 1400px;
    padding: 0 0px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    box-sizing: border-box;
    margin: 0 auto;
}

header:hover {
    box-shadow: 0 4px 20px rgba(0,0,0,0.12);
    background: linear-gradient(135deg, #ffffff 0%, #f1f3f5 100%);
}

.logo-container {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-left: 0;
}

.logo {
    height: 42px;
    width: 42px;
    border-radius: 10px;
    box-shadow: 0 3px 8px rgba(0,0,0,0.12);
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.logo:hover {
    transform: scale(1.05) rotate(5deg);
    box-shadow: 0 5px 15px rgba(0,0,0,0.2);
}

.nav-links {
    display: flex;
    gap: 30px;
    margin-right: 0;
}

.nav-links a {
    color: #495057;
    text-decoration: none;
    font-weight: 600;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    font-size: 17px;
    position: relative;
    padding: 10px 0;
    letter-spacing: 0.3px;
}

.logo-container a {
    text-decoration: none !important;
    color: #212529 !important;
    font-size: 21px;
    font-weight: 800;
    display: flex;
    align-items: center;
    letter-spacing: -0.3px;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.logo-container a:hover {
    text-decoration: none !important;
    color: #3498db !important;
    transform: translateX(3px);
}

.nav-links a:hover {
    color: #3498db;
    transform: translateY(-2px);
}

.nav-links a::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    width: 0;
    height: 2px;
    background: linear-gradient(90deg, #3498db, #2980b9);
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    transform: translateX(-50%);
}

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

footer {
    background-color: #343a40;
    color: white;
    text-align: center;
    padding: 20px 30px;
    width: 100%;
    height: auto;
    z-index: 1000;
    box-shadow: 0 -2px 10px rgba(0,0,0,0.1);
    transition: all 0.3s ease;
    border-top: 1px solid #495057;
    margin-top: 30px;
    box-sizing: border-box;
}

footer:hover {
    box-shadow: 0 -4px 15px rgba(0,0,0,0.15);
}

footer p {
    margin: 5px 0;
    font-size: 14px;
    line-height: 1.5;
}

footer p:first-child {
    font-weight: 600;
    font-size: 16px;
}

main {
    flex: 1;
    overflow-y: auto;
    margin-top: 100px;
    margin-bottom: 80px;
    width: 100%;
    box-sizing: border-box;
    padding: 0 20px;
    transition: all 0.3s ease;
}

.search-tag-container {
    background: white;
    padding: 20px;
    box-shadow: 0 2px 8px rgba(0,0,0,0.05);
    box-sizing: border-box;
    transition: all 0.3s ease;
    margin-bottom: 20px;
    border-radius: 8px;
    max-width: 1400px;
    width: 100%;
    margin-left: auto;
    margin-right: auto;
}

/* 搜索容器 */
.search-container {
    text-align: center;
    margin-bottom: 20px;
}

#searchInput {
    width: 100%;
    max-width: 1400px;
    padding: 15px 20px;
    border: 2px solid #e9ecef;
    border-radius: 30px;
    font-size: 16px;
    box-sizing: border-box;
    transition: all 0.3s ease;
    background-color: #f8f9fa;
}

#searchInput:focus {
    outline: none;
    border-color: #3498db;
    box-shadow: 0 0 0 3px rgba(52, 152, 219, 0.1);
    background-color: white;
}

/* 标签云样式 */
.tag-cloud {
    text-align: center;
    border-top: 1px solid #f0f0f0;
    padding-top: 15px;
    margin: 0;
    overflow-x: hidden;
}

.tag-cloud::-webkit-scrollbar {
    display: none;
}

.tag-cloud {
    -ms-overflow-style: none;
    scrollbar-width: none;
}

.tag-cloud span {
    display: inline-block;
    margin: 5px 8px;
    padding: 8px 16px;
    background-color: #f8f9fa;
    border-radius: 25px;
    cursor: pointer;
    transition: all 0.3s ease;
    font-size: 14px;
    font-weight: 500;
    border: 1px solid #e9ecef;
    box-sizing: border-box;
}

.tag-cloud span:hover {
    background-color: #3498db;
    color: white;
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(52, 152, 219, 0.3);
}

/* 图片画廊布局 */
.gallery {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
    gap: 25px;
    padding: 20px 0;
    max-width: 1400px;
    width: 100%;
    margin: 0 auto;
    box-sizing: border-box;
}

.gallery-item {
    position: relative;
    overflow: hidden;
    border-radius: 12px;
    background: white;
    box-sizing: border-box;
    box-shadow: 0 4px 15px rgba(0,0,0,0.08);
    transition: all 0.3s ease;
}

.gallery-item:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 25px rgba(0,0,0,0.15);
}

.gallery img {
    width: 100%;
    height: 180px;
    object-fit: cover;
    cursor: default;
    transition: transform 0.5s ease;
}

.image-meta {
    padding: 15px;
    background: white;
    box-sizing: border-box;
}

.image-meta h3 {
    margin: 0 0 10px 0;
    font-size: 16px;
    color: #333;
    font-weight: 600;
    line-height: 1.4;
}

.image-meta .tags {
    font-size: 13px;
    color: #6c757d;
    display: block;
    margin-bottom: 15px;
    line-height: 1.4;
}

.download-container {
    display: flex;
    justify-content: space-between;
    gap: 10px;
    margin-top: 10px;
}

.preview-btn, .download-btn {
    width: 48%;
    padding: 10px 15px;
    background: #f8f9fa;
    color: #333;
    border: 1px solid #e9ecef;
    border-radius: 8px;
    cursor: pointer;
    font-size: 14px;
    font-weight: 500;
    transition: all 0.3s ease;
    text-align: center;
}

.preview-btn:hover {
    background: #3498db;
    color: white;
    border-color: #3498db;
    box-shadow: 0 2px 8px rgba(52, 152, 219, 0.3);
}

.download-btn:hover {
    background: #27ae60;
    color: white;
    border-color: #27ae60;
    box-shadow: 0 2px 8px rgba(39, 174, 96, 0.3);
}

/* 模态框样式 */
.modal {
    display: none;
    position: fixed;
    z-index: 2000;
    padding-top: 50px;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0,0,0,0.95);
    overflow-y: auto;
    transition: all 0.3s ease;
}

.modal-content {
    margin: 0 auto;
    display: block;
    max-width: 90%;
    max-height: 70vh;
    width: auto;
    border-radius: 12px;
    box-shadow: 0 10px 30px rgba(0,0,0,0.5);
    transition: all 0.3s ease;
}

.close {
    position: fixed;
    top: 20px;
    right: 30px;
    color: white;
    font-size: 40px;
    font-weight: bold;
    cursor: pointer;
    z-index: 2001;
    transition: all 0.3s ease;
    padding: 10px;
    border-radius: 50%;
    background-color: rgba(0,0,0,0.5);
}

.close:hover {
    background-color: rgba(255,255,255,0.2);
    transform: rotate(90deg);
}

.image-info {
    color: white;
    text-align: center;
    padding: 30px;
    margin-top: 20px;
    background-color: rgba(0,0,0,0.7);
    border-radius: 12px;
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
    margin-bottom: 50px;
}

#imageTitle {
    font-size: 24px;
    font-weight: 700;
    margin-bottom: 15px;
    color: #fff;
}

#imageTags {
    font-size: 16px;
    color: #e9ecef;
    margin-bottom: 20px;
}

#downloadBtn {
    background-color: #27ae60;
    color: white;
    border: none;
    padding: 15px 30px;
    border-radius: 8px;
    cursor: pointer;
    font-size: 16px;
    font-weight: 600;
    margin-top: 20px;
    width: 80%;
    max-width: 300px;
    transition: all 0.3s ease;
}

#downloadBtn:hover {
    background-color: #219a52;
    transform: translateY(-2px);
    box-shadow: 0 4px 15px rgba(39, 174, 96, 0.4);
}

.code-modal-content {
    background-color: white;
    margin: 10% auto;
    padding: 40px;
    border-radius: 16px;
    width: 90%;
    max-width: 400px;
    box-shadow: 0 10px 40px rgba(0,0,0,0.3);
    position: relative;
    animation: slideDown 0.3s ease;
    z-index: 2002;
}

#codeModal {
    background-color: rgba(0, 0, 0, 0.6);
}

@keyframes slideDown {
    from {
        opacity: 0;
        transform: translateY(-50px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.code-modal-content h2 {
    margin: 0 0 25px 0;
    color: #333;
    font-size: 24px;
    text-align: center;
    font-weight: 700;
}

#codeInput {
    width: 100%;
    padding: 15px;
    border: 2px solid #e9ecef;
    border-radius: 8px;
    font-size: 16px;
    box-sizing: border-box;
    margin-bottom: 20px;
    transition: all 0.3s ease;
    text-align: center;
    letter-spacing: 2px;
}

#codeInput:focus {
    outline: none;
    border-color: #3498db;
    box-shadow: 0 0 0 3px rgba(52, 152, 219, 0.1);
}

.code-buttons {
    display: flex;
    gap: 10px;
    justify-content: center;
}

.confirm-btn, .cancel-btn {
    padding: 12px 30px;
    border: none;
    border-radius: 8px;
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    flex: 1;
}

.confirm-btn {
    background-color: #3498db;
    color: white;
}

.confirm-btn:hover {
    background-color: #2980b9;
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(52, 152, 219, 0.3);
}

.cancel-btn {
    background-color: #e9ecef;
    color: #333;
}

.cancel-btn:hover {
    background-color: #dee2e6;
    transform: translateY(-2px);
}

.code-close {
    position: absolute;
    top: 15px;
    right: 20px;
    color: #999;
    font-size: 28px;
    font-weight: bold;
    cursor: pointer;
    transition: all 0.3s ease;
}

.code-close:hover {
    color: #333;
    transform: rotate(90deg);
}

.code-hint {
    text-align: center;
    margin-top: 15px;
    font-size: 14px;
    min-height: 20px;
}

.code-hint.error {
    color: #e74c3c;
}

.code-hint.success {
    color: #27ae60;
}

.qr-code-section {
    margin-top: 25px;
    padding-top: 25px;
    border-top: 1px solid #e9ecef;
    text-align: center;
}

.qr-code-img {
    width: 200px;
    height: 200px;
    border-radius: 8px;
    box-shadow: 0 2px 8px rgba(0,0,0,0.1);
    margin-bottom: 15px;
}

.qr-code-text {
    font-size: 16px;
    color: #6c757d;
    line-height: 1.6;
    margin: 0;
}

/* 响应式设计 */
@media (max-width: 1200px) {
    .gallery {
        grid-template-columns: repeat(3, 1fr);
        gap: 20px;
        padding: 20px 0;
    }
    
    main {
        padding: 0 15px;
    }
}

@media (max-width: 992px) {
    .gallery {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .header-content {
        max-width: 100%;
        padding: 0 20px;
    }
    
    .search-container {
        padding: 15px 20px;
    }
    
    .tag-cloud {
        padding: 12px 20px;
    }
}

@media (max-width: 768px) {
    .gallery {
        grid-template-columns: repeat(2, 1fr);
        gap: 15px;
        padding: 15px 0;
    }
    
    main {
        margin-top: 115px;
        margin-bottom: 70px;
    }
    
    .header-content {
        max-width: 100%;
        padding: 0 20px;
        flex-direction: column;
        align-items: center;
        gap: 12px;
        text-align: center;
    }
    
    .logo-container {
        justify-content: center;
        gap: 10px;
    }
    
    .logo {
        height: 38px;
        width: 38px;
    }
    
    .nav-links {
        width: 100%;
        justify-content: center;
        gap: 20px;
    }
    
    .nav-links a {
        font-size: 15px;
        padding: 8px 0;
    }
    
    .logo-container a {
        font-size: 18px;
    }
    
    header {
        padding: 10px 0;
    }
    

    
    #searchInput {
        padding: 12px 16px;
        font-size: 14px;
    }
    
    .gallery img {
        height: 150px;
    }
    
    .image-meta {
        padding: 12px;
    }
    
    .image-meta h3 {
        font-size: 14px;
    }
    
    .modal-content {
        max-width: 95%;
        max-height: 60vh;
    }
    
    .image-info {
        padding: 20px;
        margin-bottom: 30px;
    }
    
    #imageTitle {
        font-size: 20px;
    }
    
    .code-modal-content {
        padding: 30px 25px;
        max-width: 90%;
    }
    
    .code-modal-content h2 {
        font-size: 20px;
        margin-bottom: 20px;
    }
    
    #codeInput {
        padding: 12px;
        font-size: 15px;
    }
    
    .confirm-btn, .cancel-btn {
        padding: 10px 20px;
        font-size: 14px;
    }
    
    .qr-code-img {
        width: 150px;
        height: 150px;
    }
    
    .qr-code-text {
        font-size: 12px;
    }
}

@media (max-width: 480px) {
    .gallery {
        grid-template-columns: 1fr;
        gap: 20px;
    }
    
    main {
        margin-top: 115px;
        padding: 0 10px;
    }
    
    .header-content {
        max-width: 100%;
        padding: 0 10px;
        flex-direction: column;
        align-items: center;
        gap: 10px;
        text-align: center;
    }
    
    .logo-container {
        justify-content: center;
        gap: 8px;
    }
    
    .logo {
        height: 34px;
        width: 34px;
        border-radius: 8px;
    }
    
    .logo-container a {
        font-size: 17px;
    }
    
    .nav-links {
        justify-content: center;
        gap: 15px;
        width: 100%;
    }
    
    .nav-links a {
        font-size: 15px;
        padding: 8px 0;
        -webkit-tap-highlight-color: transparent;
    }
    
    .logo-container a {
        -webkit-tap-highlight-color: transparent;
    }
    
    header {
        padding: 10px 0;
    }
    
    .search-tag-container {
        padding: 15px;
        box-sizing: border-box;
    }
    
    .search-container {
        padding: 0;
        margin-bottom: 15px;
    }
    
    .tag-cloud {
        padding-top: 15px;
        margin: 0;
        text-align: center;
        overflow-x: hidden;
    }
    
    .tag-cloud span {
        font-size: 12px;
        padding: 6px 12px;
        margin: 3px 5px;
        max-width: 100%;
        word-break: break-word;
        box-sizing: border-box;
    }
    
    .gallery img {
        height: 180px;
    }
    
    .close {
        font-size: 30px;
        top: 10px;
        right: 15px;
    }
    
    .code-modal-content {
        padding: 25px 20px;
        max-width: 95%;
        margin: 15% auto;
    }
    
    .code-modal-content h2 {
        font-size: 18px;
        margin-bottom: 18px;
    }
    
    #codeInput {
        padding: 12px;
        font-size: 14px;
        letter-spacing: 1px;
    }
    
    .code-buttons {
        gap: 8px;
    }
    
    .confirm-btn, .cancel-btn {
        padding: 10px 15px;
        font-size: 14px;
    }
    
    .qr-code-section {
        margin-top: 20px;
        padding-top: 20px;
    }
    
    .qr-code-img {
        width: 140px;
        height: 140px;
    }
    
    .qr-code-text {
        font-size: 11px;
        line-height: 1.5;
    }
    
    .code-close {
        top: 10px;
        right: 15px;
        font-size: 24px;
    }
}

/* 分页样式 */
.pagination-container {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 15px;
    margin: 10px 0;
    padding: 20px 10px;
    box-sizing: border-box;
    flex-wrap: wrap;
    background-color: white;
    border-radius: 10px;
    box-shadow: 0 0px 0px rgba(0,0,0,0.1);
    max-width: 1400px;
    margin-left: auto;
    margin-right: auto;
}

.page-btn {
    padding: 10px 20px;
    background-color: #f8f9fa;
    color: #333;
    border: 1px solid #e9ecef;
    border-radius: 8px;
    cursor: pointer;
    font-size: 14px;
    font-weight: 500;
    transition: all 0.3s ease;
    min-width: 60px;
    text-align: center;
}

.page-btn:hover:not(:disabled) {
    background-color: #3498db;
    color: white;
    border-color: #3498db;
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(52, 152, 219, 0.3);
}

.page-btn:disabled {
    background-color: #e9ecef;
    color: #6c757d;
    cursor: not-allowed;
    transform: none;
}

.page-info {
    font-size: 14px;
    color: #6c757d;
    font-weight: 500;
}

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

.gallery-item {
    animation: fadeIn 0.5s ease forwards;
}

.gallery-item:nth-child(2) {
    animation-delay: 0.1s;
}

.gallery-item:nth-child(3) {
    animation-delay: 0.2s;
}

.gallery-item:nth-child(4) {
    animation-delay: 0.3s;
}

.gallery-item:nth-child(5) {
    animation-delay: 0.4s;
}

.gallery-item:nth-child(6) {
    animation-delay: 0.5s;
}

/* 加载动画 */
.loading {
    display: flex;
    justify-content: center;
    align-items: center;
    padding: 50px;
    font-size: 18px;
    color: #6c757d;
}

.loading::after {
    content: '';
    width: 20px;
    height: 20px;
    border: 2px solid #e9ecef;
    border-top-color: #3498db;
    border-radius: 50%;
    animation: loading 1s linear infinite;
    margin-left: 10px;
}

@keyframes loading {
    to {
        transform: rotate(360deg);
    }
}

/* 下载说明页面样式 */
.download-guide {
    max-width: 900px;
    margin: 0 auto;
    padding: 40px 20px;
}

.download-guide h1 {
    text-align: center;
    color: #333;
    font-size: 36px;
    margin-bottom: 40px;
    font-weight: 700;
}

.guide-section {
    background: white;
    padding: 30px;
    border-radius: 12px;
    margin-bottom: 30px;
    box-shadow: 0 4px 15px rgba(0,0,0,0.08);
    transition: all 0.3s ease;
}

.guide-section:hover {
    box-shadow: 0 8px 25px rgba(0,0,0,0.12);
    transform: translateY(-2px);
}

.guide-section h2 {
    color: #333;
    font-size: 24px;
    margin-bottom: 25px;
    font-weight: 600;
    border-bottom: 2px solid #e9ecef;
    padding-bottom: 15px;
}

/* 素材说明样式 */
.material-info {
    color: #6c757d;
    line-height: 1.8;
}

.material-info > p {
    margin: 0 0 20px 0;
    font-size: 15px;
}

.material-list {
    list-style: none;
    padding: 0;
    margin: 0 0 20px 0;
}

.material-list li {
    padding: 12px 15px;
    margin-bottom: 10px;
    background: #f8f9fa;
    border-radius: 8px;
    border-left: 4px solid #3498db;
    transition: all 0.3s ease;
}

.material-list li:hover {
    background: #e9ecef;
    transform: translateX(5px);
}

.material-list li strong {
    color: #333;
    font-weight: 600;
    margin-right: 8px;
}

.material-info .note {
    background: #fff3cd;
    border-left: 4px solid #ffc107;
    padding: 15px 20px;
    border-radius: 4px;
    color: #856404;
    margin: 0;
    font-size: 14px;
}

/* 步骤样式 */
.steps {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.step {
    display: flex;
    align-items: flex-start;
    gap: 20px;
}

.step-number {
    width: 50px;
    height: 50px;
    background: linear-gradient(135deg, #3498db 0%, #2980b9 100%);
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 24px;
    font-weight: 700;
    flex-shrink: 0;
    box-shadow: 0 4px 10px rgba(52, 152, 219, 0.3);
}

.step-content h3 {
    margin: 0 0 8px 0;
    color: #333;
    font-size: 18px;
    font-weight: 600;
}

.step-content p {
    margin: 0;
    color: #6c757d;
    font-size: 15px;
    line-height: 1.6;
}

/* 二维码区域 */
.qr-section {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 40px;
    flex-wrap: wrap;
}

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

.qr-code-img {
    width: 220px;
    height: 220px;
    border-radius: 12px;
    box-shadow: 0 4px 15px rgba(0,0,0,0.1);
}

.qr-text {
    flex: 1;
    min-width: 250px;
}

.qr-text p {
    margin: 12px 0;
    color: #6c757d;
    font-size: 16px;
    line-height: 1.8;
}

.qr-text strong {
    color: #333;
    font-weight: 600;
}

.qr-text .note {
    background: #fff3cd;
    border-left: 4px solid #ffc107;
    padding: 12px 16px;
    border-radius: 4px;
    margin-top: 15px;
}

.qr-text .note strong {
    color: #856404;
}

/* 限制信息 */
.limit-info {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 20px;
}

.limit-item {
    display: flex;
    align-items: center;
    gap: 15px;
    padding: 20px;
    background: #f8f9fa;
    border-radius: 8px;
    transition: all 0.3s ease;
}

.limit-item:hover {
    background: #e9ecef;
    transform: translateY(-2px);
}

.limit-icon {
    font-size: 32px;
    flex-shrink: 0;
}

.limit-text h3 {
    margin: 0 0 5px 0;
    color: #333;
    font-size: 16px;
    font-weight: 600;
}

.limit-text p {
    margin: 0;
    color: #6c757d;
    font-size: 14px;
    line-height: 1.5;
}

/* 常见问题 */
.faq {
    display: flex;
    flex-direction: column;
    gap: 15px;
}

.faq-item {
    padding: 20px;
    background: #f8f9fa;
    border-radius: 8px;
    transition: all 0.3s ease;
}

.faq-item:hover {
    background: #e9ecef;
    transform: translateX(5px);
}

.faq-item h3 {
    margin: 0 0 10px 0;
    color: #3498db;
    font-size: 16px;
    font-weight: 600;
}

.faq-item p {
    margin: 0;
    color: #6c757d;
    font-size: 14px;
    line-height: 1.6;
}

/* 响应式设计 - 下载说明页面 */
@media (max-width: 768px) {
    .download-guide {
        padding: 20px 15px;
    }
    
    .download-guide h1 {
        font-size: 28px;
        margin-bottom: 30px;
    }
    
    .guide-section {
        padding: 20px;
        margin-bottom: 20px;
    }
    
    .guide-section h2 {
        font-size: 20px;
        margin-bottom: 20px;
    }
    
    .step {
        gap: 15px;
    }
    
    .step-number {
        width: 40px;
        height: 40px;
        font-size: 20px;
    }
    
    .step-content h3 {
        font-size: 16px;
    }
    
    .step-content p {
        font-size: 14px;
    }
    
    .qr-section {
        flex-direction: column;
        gap: 20px;
    }
    
    .qr-code-img {
        width: 180px;
        height: 180px;
    }
    
    .qr-text {
        text-align: center;
    }
    
    .limit-info {
        grid-template-columns: 1fr;
    }
    
    .faq-item {
        padding: 15px;
    }
    
    .faq-item h3 {
        font-size: 15px;
    }
    
    .faq-item p {
        font-size: 13px;
    }
}

@media (max-width: 480px) {
    .download-guide h1 {
        font-size: 24px;
        margin-bottom: 25px;
    }
    
    .guide-section {
        padding: 15px;
    }
    
    .guide-section h2 {
        font-size: 18px;
        margin-bottom: 15px;
    }
    
    .step-number {
        width: 35px;
        height: 35px;
        font-size: 18px;
    }
    
    .qr-code-img {
        width: 150px;
        height: 150px;
    }
    
    .qr-text p {
        font-size: 14px;
    }
    
    .limit-item {
        padding: 15px;
    }
}