/* 颜色变量 */
:root {
    --primary-bg-color: #523522;
    --secondary-bg-color: #523522;
    --accent-color: #FEBD94;
    --text-color: #ffffff;
    --btn-color: #eb7126;
    --btn-secondary-color: #261B12;
    --border-color: #2c4159;
    --dark-brown: #3D2E24;
    --light-brown: #786452;
}

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

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    background: linear-gradient(135deg, var(--dark-brown) 0%, var(--primary-bg-color) 40%, var(--light-brown) 100%);
    background-attachment: fixed;
    color: var(--text-color);
    line-height: 1.6;
    position: relative;
    min-height: 100vh;
    overflow-x: hidden;
}

body::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image: url('data:image/png;base64,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');
    opacity: 0.03;
    pointer-events: none;
    z-index: -1;
}

/* 顶部导航 */
.top-nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 15px 20px;
    background: linear-gradient(to bottom, var(--secondary-bg-color), var(--dark-brown));
    box-shadow: 0 2px 15px rgba(168, 102, 41, 0.0);
    position: relative;
    z-index: 10;
}

.menu-btn {
    background: none;
    border: none;
    color: var(--text-color);
    font-size: 24px;
    cursor: pointer;
}

.toggle-container {
    display: flex;
    align-items: center;
    justify-content: center;
}

.logo {
    height: 40px;
    vertical-align: middle;
}

.login-btn {
    background-color: var(--text-color);
    color: var(--primary-bg-color);
    border: none;
    border-radius: 20px;
    padding: 8px 16px;
    font-weight: bold;
    cursor: pointer;
}

/* 面包屑导航 */
.breadcrumb {
    padding: 15px 20px;
    font-size: 14px;
    color: rgba(255, 255, 255, 0.7);
}

.breadcrumb a {
    color: rgba(255, 255, 255, 0.7);
    text-decoration: none;
}

/* 主要内容 */
.main-content {
    padding: 20px;
    position: relative;
    z-index: 1;
}

.main-content::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 100%;
    height: 100%;
    background: radial-gradient(circle at center, rgba(255, 255, 255, 0.05) 0%, transparent 70%);
    transform: translate(-50%, -50%);
    pointer-events: none;
    z-index: -1;
}

.page-title {
    font-size: 24px;
    font-weight: bold;
    margin-bottom: 30px;
}

.toggle-switch {
    display: flex;
    justify-content: center;
    margin: 20px 0;
    gap: 10px;
}

.toggle-option {
    display: flex;
    align-items: center;
    background-color: var(--btn-secondary-color);
    border: none;
    border-radius: 5px;
    padding: 10px 20px;
    color: var(--text-color);
    cursor: pointer;
    min-width: 150px;
    justify-content: center;
}

.toggle-option.active {
    background-color: var(--btn-color);
}

.toggle-option img {
    margin-right: 10px;
    width: 20px;
    height: 20px;
}

/* 手机展示区域 */
.phone-container {
    display: flex;
    justify-content: center;
    margin: -50px 0 0 0;
    max-width: 100%;
    overflow: hidden;
    position: relative;
    z-index: 2;
}

.phone-frame {
    position: relative;
    width: 100%;
    height: 750px;
    border-radius: 36px;
    padding: 0px;
    overflow: hidden;
}

.phone-image {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: none;
    border-radius: 20px;
    position: absolute;
    top: 0;
    left: 0;
}

.phone-image.active {
    display: block;
}

.phone-notch {
    width: 80px;
    height: 30px;
    background-color: var(--secondary-bg-color);
    border-radius: 0 0 15px 15px;
    margin: 0 auto;
}

.browser-ui {
    padding: 5px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.browser-controls {
    display: flex;
    gap: 15px;
}

.browser-address {
    flex: 1;
    height: 25px;
    background-color: rgba(255, 255, 255, 0.1);
    border-radius: 12px;
    margin: 0 10px;
}

.share-button {
    width: 25px;
    height: 25px;
    background-color: #16a34a;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
}

.browser-content {
    flex: 1;
    padding: 10px;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
}

.content-placeholder {
    height: 20px;
    background-color: rgba(255, 255, 255, 0.1);
    border-radius: 4px;
    margin: 5px 0;
}

.content-placeholder.wide {
    width: 100%;
}

.content-placeholder.medium {
    width: 70%;
}

.content-placeholder.narrow {
    width: 50%;
}

.browser-bottom {
    display: flex;
    justify-content: space-between;
    padding: 5px 15px;
}

.browser-bottom-btn {
    color: rgba(255, 255, 255, 0.7);
    font-size: 18px;
}

/* 步骤指示器 */
.step-indicator {
    text-align: center;
    margin: -50px 0 0 0;
}

.step-number {
    font-size: 20px;
    font-weight: bold;
    margin-bottom: 10px;
}

.step-description {
    font-size: 18px;
}

/* 底部导航 */
.step-navigation {
    display: flex;
    justify-content: center;
    align-items: center;
    margin: 30px 0;
    gap: 30px;
    position: relative;
    z-index: 2;
}

.nav-arrow {
    width: 40px;
    height: 40px;
    background: linear-gradient(145deg, var(--btn-secondary-color), var(--dark-brown));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    color: var(--text-color);
    font-size: 20px;
    transition: all 0.3s ease;
    box-sizing: content-box;
    box-shadow: 0 3px 6px rgba(0, 0, 0, 0.2);
}

.nav-arrow:hover {
    transform: translateY(-2px);
    box-shadow: 0 5px 10px rgba(0, 0, 0, 0.3);
}

.nav-progress {
    display: flex;
    align-items: center;
    gap: 8px;
}

.progress-line {
    height: 4px;
    width: 80px;
    background-color: var(--btn-secondary-color);
    border-radius: 2px;
}

.progress-line.active {
    background-color: var(--btn-color);
}

/* 响应式设计 */
@media (max-width: 768px) {
    .toggle-switch {
        flex-direction: column;
    }
    
    .toggle-option {
        width: 100%;
    }
}