/* BiyaPay Landing Page - Main Styles */
/* 主要样式文件 */

/* CSS 自定义属性 - BiyaPay风格黑白主题 */
:root {
    --primary-color: #ffffff;
    --secondary-color: #f0f0f0;
    --accent-color: #ffd700;
    --success-color: #00ff88;
    --warning-color: #ffaa00;
    --error-color: #ff3366;
    --bg-primary: #000000;
    --bg-secondary: #1a1a1a;
    --bg-tertiary: #2a2a2a;
    --text-primary: #ffffff;
    --text-secondary: #cccccc;
    --text-muted: #888888;
    --border-color: #333333;
    --border-light: #444444;
    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.3);
    --shadow-md: 0 4px 24px rgba(0, 0, 0, 0.4);
    --shadow-lg: 0 8px 40px rgba(0, 0, 0, 0.5);
}

/* 基础重置 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'PingFang SC', sans-serif;
    line-height: 1.6;
    color: var(--text-primary);
    background-color: var(--bg-primary);
    overflow-x: hidden;
}

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

/* 导航栏样式 - Template样式 */
.navbar.bg-white {
    background: white !important;
    border-bottom: 1px solid #e5e7eb;
    position: sticky;
    top: 0;
    z-index: 1000;
}

.navbar.bg-white .text-gray-700 {
    color: #374151;
}

.navbar.bg-white .text-gray-700:hover {
    color: #111827;
}

/* 原有导航栏样式保持兼容 */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: rgba(0, 0, 0, 0.95);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--border-color);
    transition: all 0.3s ease;
}

.navbar.scrolled {
    background: rgba(0, 0, 0, 0.98);
    box-shadow: var(--shadow-md);
}

.navbar-content {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 70px;
    position: relative;
}

/* Logo样式 */
.navbar-brand .logo {
    display: flex;
    align-items: center;
    text-decoration: none;
    color: var(--text-primary);
    font-weight: 700;
    font-size: 1.5rem;
}

.logo-img {
    height: 40px;
    width: auto;
    margin-right: 0.5rem;
    /* 如果图片不存在，隐藏并调整间距 */
}

.logo-img:not([src]), 
.logo-img[src=""], 
.logo-img[src="assets/images/logo.png"]:not([alt]) {
    display: none;
}

.logo-img:not([src]) + .logo-text,
.logo-img[src=""] + .logo-text,
.logo-img[src="assets/images/logo.png"]:not([alt]) + .logo-text {
    margin-left: 0;
}

.logo-text {
    color: var(--primary-color);
    font-weight: 700;
}

/* 桌面端菜单 */
.navbar-menu {
    display: flex;
    align-items: center;
    gap: 2rem;
}

.navbar-nav {
    display: flex;
    list-style: none;
    margin: 0;
    padding: 0;
    gap: 2rem;
}

.nav-item {
    position: relative;
}

.nav-link {
    color: var(--text-secondary);
    text-decoration: none;
    font-weight: 500;
    padding: 0.5rem 0;
    transition: color 0.3s ease;
    display: flex;
    align-items: center;
    gap: 0.25rem;
}

.nav-link:hover {
    color: var(--primary-color);
}

.nav-link i {
    font-size: 0.8rem;
    transition: transform 0.3s ease;
}

/* 下拉菜单 */
.dropdown {
    position: relative;
}

.dropdown:hover .nav-link i {
    transform: rotate(180deg);
}

.dropdown-menu {
    position: absolute;
    top: 100%;
    left: 0;
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    min-width: 200px;
    padding: 0.5rem 0;
    box-shadow: var(--shadow-lg);
    opacity: 0;
    visibility: hidden;
    transform: translateY(-10px);
    transition: all 0.3s ease;
    z-index: 1001;
}

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

.dropdown-link {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.75rem 1rem;
    color: var(--text-secondary);
    text-decoration: none;
    transition: all 0.3s ease;
    border-bottom: 1px solid var(--border-color);
}

.dropdown-link:last-child {
    border-bottom: none;
}

.dropdown-link:hover {
    background: var(--bg-tertiary);
    color: var(--primary-color);
}

.dropdown-link i {
    font-size: 1rem;
    width: 16px;
}

/* 认证按钮 */
.navbar-auth {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.navbar-auth .btn {
    padding: 0.5rem 1rem;
    font-size: 0.9rem;
}

/* 移动端菜单切换按钮 */
.mobile-menu-toggle {
    display: none;
    flex-direction: column;
    background: none;
    border: none;
    cursor: pointer;
    padding: 0.5rem;
    width: 40px;
    height: 40px;
    justify-content: center;
    align-items: center;
    gap: 4px;
}

.mobile-menu-toggle span {
    width: 24px;
    height: 2px;
    background: var(--text-primary);
    transition: all 0.3s ease;
    transform-origin: center;
}

.mobile-menu-toggle.active span:nth-child(1) {
    transform: rotate(45deg) translate(5px, 5px);
}

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

.mobile-menu-toggle.active span:nth-child(3) {
    transform: rotate(-45deg) translate(7px, -6px);
}

/* 响应式隐藏/显示 */
.desktop-only {
    display: flex;
}

.mobile-only {
    display: none;
}

/* 响应式样式 */
@media (max-width: 768px) {
    .navbar-menu {
        position: fixed;
        top: 70px;
        left: 0;
        right: 0;
        background: var(--bg-primary);
        border-top: 1px solid var(--border-color);
        flex-direction: column;
        align-items: stretch;
        padding: 1rem 0;
        transform: translateX(-100%);
        transition: transform 0.3s ease;
        max-height: calc(100vh - 70px);
        overflow-y: auto;
    }

    .navbar-menu.active {
        transform: translateX(0);
    }

    .navbar-nav {
        flex-direction: column;
        gap: 0;
        padding: 0 1rem;
    }

    .nav-item {
        border-bottom: 1px solid var(--border-color);
    }

    .nav-item:last-child {
        border-bottom: none;
    }

    .nav-link {
        padding: 1rem 0;
        font-size: 1.1rem;
    }

    .dropdown-menu {
        position: static;
        background: var(--bg-tertiary);
        border: none;
        border-radius: 0;
        box-shadow: none;
        margin-top: 0;
        opacity: 1;
        visibility: visible;
        transform: none;
        display: none;
    }

    .dropdown:hover .dropdown-menu {
        display: block;
    }

    .dropdown-link {
        padding: 0.75rem 1rem;
        margin-left: 1rem;
        border-bottom: 1px solid var(--border-light);
    }

    .mobile-menu-toggle {
        display: flex;
    }

    .desktop-only {
        display: none;
    }

    .mobile-only {
        display: flex;
        margin-top: 1rem;
        padding: 0 1rem;
        gap: 0.5rem;
    }

    .mobile-only .btn {
        flex: 1;
        text-align: center;
        justify-content: center;
    }
}

/* 改善子菜单hover体验 */
.group {
    position: relative;
}

/* 在按钮和菜单之间添加invisible桥接区域 */
.group:hover::before {
    content: '';
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    height: 8px;
    background: transparent;
    z-index: 9;
}

/* 下拉菜单hover效果 */
.group:hover .group-hover\:opacity-100 {
    opacity: 1 !important;
    visibility: visible !important;
}

.group:hover .group-hover\:visible {
    visibility: visible !important;
}

.dropdown:hover .dropdown-menu {
    display: block;
}

.dropdown-menu {
    min-width: 200px;
    border: 1px solid #e0e0e0;
    box-shadow: 0 4px 24px rgba(0, 0, 0, 0.1);
    z-index: 1001;
}

.dropdown-menu ul {
    margin: 0;
    padding: 0;
}

.dropdown-menu li:last-child {
    border-bottom: none;
}

/* 主要颜色变量 */
.text-primary-default {
    color: #252A35;
}

.bg-primary-default {
    background-color: #252A35;
}

.text-white-255 {
    color: #ffffff;
}

/* 登录注册按钮样式 */
.main_right span {
    transition: all 0.3s ease;
}

.main_right span:hover {
    opacity: 0.8;
}

/* 响应式处理 */
@media (max-width: 768px) {
    .nav_bar_login {
        display: none;
    }
}

/* 原有导航栏样式保持兼容 */
.nav-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 0;
}

.logo {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--text-primary);
    letter-spacing: 0.5px;
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 2rem;
}

.nav-menu a {
    text-decoration: none;
    color: var(--text-secondary);
    font-weight: 500;
    transition: color 0.3s ease;
}

.nav-menu a:hover {
    color: var(--text-primary);
}

.nav-actions {
    display: flex;
    gap: 1rem;
}

/* 主要内容区域样式 */
.main-content {
    min-height: 60vh;
    padding: 2rem 0;
    background: var(--bg-primary);
    /* 移除margin-top，因为导航栏现在是sticky定位 */
}

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

/* Footer样式 */
.site-footer {
    color: white;
    padding: 4rem 0 2rem;
    margin-top: 4rem;
    width: 100%;
}

.footer-content {
    width: 100%;
    margin: 0 auto;
    padding: 0 20px;
}

.footer-logo {
    margin-bottom: 3rem;
    text-align: center;
}

.footer-logo-img {
    height: 60px;
    width: auto;
    margin-bottom: 1rem;
    cursor: pointer;
    transition: opacity 0.3s ease;
}

.footer-logo-img:hover {
    opacity: 0.8;
}

.footer-title {
    font-size: 1.2rem;
    font-weight: 600;
    margin-bottom: 2rem;
    color: white;
    opacity: 0.9;
}

/* Desktop Layout */
.footer-desktop {
    display: block;
}

.footer-sections {
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    gap: 2rem;
    margin-bottom: 3rem;
}

.footer-section h4 {
    font-size: 1.1rem;
    font-weight: 600;
    margin-bottom: 1rem;
    color: white;
}

.footer-links {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.footer-links a,
.footer-links p {
    color: rgba(255, 255, 255, 0.6);
    text-decoration: none;
    font-size: 0.85rem;
    transition: color 0.3s ease;
    margin: 0;
    line-height: 1.5;
}

.footer-links a:hover {
    color: white;
    text-decoration: underline;
}

/* Community Section */
.footer-community {
    display: flex;
    flex-direction: column;
    align-items: center;
    margin-bottom: 3rem;
}

.community-title h4 {
    text-align: center;
    margin-bottom: 1.5rem;
    font-size: 1.1rem;
}

.social-links {
    display: flex;
    justify-content: center;
    gap: 1rem;
    flex-wrap: wrap;
}

.social-icon {
    width: 36px;
    height: 36px;
    object-fit: cover;
    transition: transform 0.3s ease, opacity 0.3s ease;
}

.social-icon:hover {
    transform: translateY(-2px);
    opacity: 0.8;
}

/* Divider */
.footer-divider {
    height: 1px;
    background: rgba(255, 255, 255, 0.2);
    width: 100%;
    margin: 2rem 0;
}

/* Downloads Section */
.footer-downloads {
    margin-bottom: 3rem;
}

.download-section {
    display: flex;
    justify-content: center;
}

.download-buttons {
    display: flex;
    align-items: center;
    gap: 1rem;
    flex-wrap: wrap;
    justify-content: center;
}

.download-btn {
    display: inline-block;
    transition: transform 0.3s ease;
}

.download-btn:hover {
    transform: translateY(-2px);
}

.download-img {
    height: 40px;
    width: auto;
}

.auth-btn {
    padding: 8px 24px;
    border: 1px solid #1e1f21;
    border-radius: 24px;
    color: white;
    text-decoration: none;
    font-size: 0.9rem;
    transition: all 0.3s ease;
    white-space: nowrap;
    min-width: 80px;
    text-align: center;
}

.auth-btn:hover {
    background: rgba(255, 255, 255, 0.1);
    border-color: rgba(255, 255, 255, 0.3);
}

/* Mobile Layout */
.footer-mobile {
    display: none;
}

.mobile-collapse-section {
    border-bottom: 1px solid rgba(255, 255, 255, 0.15);
}

.collapse-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 0;
    cursor: pointer;
    font-size: 1.1rem;
    font-weight: 600;
    color: white;
    background: none;
    border: none;
    width: 100%;
}

.collapse-icon {
    transition: transform 0.3s ease;
}

.collapse-content {
    display: none;
    padding: 0 0 1rem 0;
    flex-direction: column;
    gap: 0.5rem;
}

.collapse-content a,
.collapse-content p {
    color: rgba(255, 255, 255, 0.6);
    text-decoration: none;
    font-size: 0.85rem;
    margin: 0.25rem 0;
    padding-left: 12px;
    transition: color 0.3s ease;
}

.collapse-content a:hover {
    color: white;
}

/* Mobile Downloads */
.footer-mobile-downloads {
    padding: 2rem 0;
    border-top: 1px solid rgba(255, 255, 255, 0.15);
    margin-top: 2rem;
}

.mobile-download-section {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
    align-items: center;
}

.mobile-auth-buttons {
    display: flex;
    justify-content: center;
    width: 100%;
}

.mobile-register-btn {
    background: #ffffff;
    color: #000000;
    border: 2px solid #ffffff;
    padding: 12px 32px;
    border-radius: 25px;
    font-weight: 600;
    font-size: 0.95rem;
    text-decoration: none;
    transition: all 0.3s ease;
    min-width: 120px;
    text-align: center;
}

.mobile-register-btn:hover {
    background: rgba(255, 255, 255, 0.9);
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(255, 255, 255, 0.3);
}

/* Mobile Social Grid */
.footer-mobile-social {
    margin: 2rem 0;
}

.mobile-social-grid {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1.25rem;
    width: 100%;
}

.mobile-social-first-row {
    /* 第一行：5个图标紧凑排列 */
    justify-content: space-between;
}

.mobile-social-second-row {
    margin-bottom: 0;
    /* 第二行：4个图标 + 1个占位符 */
    justify-content: space-between;
}

.social-icon {
    width: 32px;
    height: 32px;
    object-fit: cover;
    transition: transform 0.3s ease, opacity 0.3s ease;
}

.social-icon:hover {
    transform: translateY(-2px);
    opacity: 0.8;
}

.social-placeholder {
    width: 32px;
    height: 32px;
    /* 透明占位符，保持space-between布局 */
    opacity: 0;
    pointer-events: none;
}

/* Regulation Section */
.footer-regulation {
    margin: 3rem 0;
}

.footer-regulation h4 {
    font-size: 1.1rem;
    font-weight: 600;
    margin-bottom: 1rem;
    color: white;
}

.regulation-content p {
    color: rgba(255, 255, 255, 0.5);
    font-size: 0.85rem;
    line-height: 1.6;
    margin-bottom: 1rem;
}

.regulation-content strong {
    color: white;
    font-weight: 600;
}

/* Footer Bottom */
.footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.15);
    padding-top: 2rem;
    margin-top: 2rem;
}

.footer-copyright {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 1rem;
}

.footer-copyright p {
    margin: 0;
    color: rgba(255, 255, 255, 0.7);
    font-size: 0.85rem;
}

.footer-legal {
    display: flex;
    gap: 1rem;
}

.footer-legal a {
    color: rgba(255, 255, 255, 0.7);
    text-decoration: underline;
    font-size: 0.85rem;
    transition: color 0.3s ease;
}

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

/* 按钮组件样式 */
.btn {
    padding: 0.75rem 1.5rem;
    border-radius: 8px;
    border: none;
    cursor: pointer;
    font-weight: 600;
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

.btn-primary {
    background: var(--text-primary);
    color: var(--bg-primary);
    box-shadow: var(--shadow-sm);
    border: 2px solid var(--text-primary);
}

.btn-primary:hover {
    background: var(--text-secondary);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.btn-outline {
    background: transparent;
    color: var(--text-primary);
    border: 2px solid var(--text-primary);
}

.btn-outline:hover {
    background: var(--text-primary);
    color: var(--bg-primary);
}

.btn-large {
    padding: 1rem 2rem;
    font-size: 1.1rem;
}

.btn-sm {
    padding: 0.5rem 1rem;
    font-size: 0.9rem;
}

.btn-white {
    background: var(--text-primary);
    color: var(--bg-primary);
    border: 2px solid var(--text-primary);
}

.btn-white:hover {
    background: var(--text-secondary);
    color: var(--bg-primary);
}

.btn-primary.btn-large {
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    font-size: 1.1rem;
    font-weight: 500;
}

.btn-disabled,
.btn[disabled],
.btn:disabled {
    background: #e0e0e0 !important;
    color: #aaa !important;
    border-color: #e0e0e0 !important;
    cursor: not-allowed !important;
    pointer-events: none !important;
    box-shadow: none !important;
    transition: none !important;
}

/* Hero Section 样式 */
.hero {
    background: linear-gradient(135deg, var(--bg-primary) 0%, var(--bg-secondary) 100%);
    padding: 80px 0 80px 0; /* 减少顶部padding，因为导航栏不是fixed */
    position: relative;
    overflow: hidden;
    border-bottom: 1px solid var(--border-color);
}

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

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 1000 200"><circle cx="200" cy="100" r="2" fill="rgba(255,255,255,0.05)"/><circle cx="400" cy="50" r="1.5" fill="rgba(255,255,255,0.05)"/><circle cx="600" cy="150" r="2" fill="rgba(255,255,255,0.05)"/><circle cx="800" cy="80" r="1.5" fill="rgba(255,255,255,0.05)"/></svg>');
    animation: float 20s infinite ease-in-out;
}

@keyframes float {
    0%, 100% { transform: translateY(0px); }
    50% { transform: translateY(-20px); }
}

.hero-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
    align-items: center;
    position: relative;
    z-index: 2;
}

.hero-text h1 {
    font-size: 3rem;
    font-weight: 800;
    line-height: 1.2;
    margin-bottom: 1rem;
}

.hero-text .subtitle {
    font-size: 1.2rem;
    opacity: 0.9;
    margin-bottom: 2rem;
}

.hero-stats {
    display: flex;
    gap: 2rem;
    margin-bottom: 2rem;
}

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

.stat-number {
    font-size: 1.5rem;
    font-weight: 700;
    display: block;
}

.stat-label {
    font-size: 0.9rem;
    opacity: 0.8;
}

.hero-form {
    background: var(--bg-secondary);
    border-radius: 8px;
    padding: 2rem;
    border: 1px solid var(--border-color);
}

.form-group {
    margin-bottom: 1rem;
}

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 600;
}

.form-group input {
    width: 100%;
    padding: 0.75rem;
    border: 1px solid var(--border-color);
    border-radius: 4px;
    background: var(--bg-primary);
    color: var(--text-primary);
    font-size: 1rem;
}

.form-group input:focus {
    outline: none;
    border-color: var(--text-primary);
    box-shadow: 0 0 0 2px rgba(255, 255, 255, 0.1);
}

.form-group input::placeholder {
    color: var(--text-muted);
}

/* 产品矩阵样式 */
.products {
    padding: 4rem 0;
    background: var(--bg-primary);
    border-bottom: 1px solid var(--border-color);
}

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

.section-title {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 1rem;
    color: var(--text-primary);
}

.section-subtitle {
    font-size: 1.1rem;
    color: var(--text-secondary);
    max-width: 600px;
    margin: 0 auto;
}

/* 产品布局容器 */
.products-layout {
    display: flex;
    gap: 4rem;
    align-items: flex-start;
    max-width: 1200px;
    margin: 0 auto;
}

.product-grid {
    display: flex;
    flex-direction: column;
    gap: 0;
    flex: 1;
    max-width: 700px;
}

/* 右侧视频区域 */
.product-video-area {
    flex: 0 0 400px;
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 500px;
    padding: 1rem;
}

.video-container {
    width: 300px;
    height: 600px;
    border-radius: 16px;
    overflow: hidden;
    box-shadow: var(--shadow-lg);
    background: var(--bg-secondary);
    position: relative;
    transition: all 0.3s ease;
}



.video-container video {
    width: 100%;
    height: 100%;
    object-fit: cover;
    border-radius: 16px;
    transition: transform 0.3s ease;
}

.video-container:hover video {
    transform: scale(1.01);
}

.video-container video[data-loaded="true"] + ::before,
.video-container video:not([data-loaded]) {
    opacity: 0;
}

/* 视频控制优化 */
.video-container video::-webkit-media-controls {
    display: none !important;
}

.video-container video::-webkit-media-controls-enclosure {
    display: none !important;
}

/* 视频播放指示器 */
.video-container .play-indicator {
    position: absolute;
    top: 1rem;
    right: 1rem;
    background: rgba(0, 0, 0, 0.7);
    color: var(--text-primary);
    padding: 0.5rem 0.8rem;
    border-radius: 20px;
    font-size: 0.8rem;
    font-weight: 500;
    display: flex;
    align-items: center;
    gap: 0.3rem;
    opacity: 0;
    transition: opacity 0.3s ease;
    z-index: 3;
}

.video-container:hover .play-indicator {
    opacity: 1;
}

.video-container .play-indicator::before {
    content: '▶';
    font-size: 0.7rem;
    animation: pulse 2s infinite;
}

@keyframes pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.5; }
}

/* 视频内容标题覆盖层 */
.video-overlay {
    position: absolute;
    top: 1rem;
    left: 1rem;
    background: rgba(0, 0, 0, 0.8);
    color: var(--text-primary);
    padding: 0.8rem 1.2rem;
    border-radius: 8px;
    font-size: 0.9rem;
    font-weight: 600;
    opacity: 0;
    transition: opacity 0.3s ease;
    z-index: 3;
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.video-container:hover .video-overlay {
    opacity: 1;
}

/* 右侧图片区域 - 保持兼容性 */
.product-image-area {
    flex: 0 0 400px;
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 500px;
}

.image-placeholder {
    width: 100%;
    height: 400px;
    border: 2px dashed var(--border-color);
    border-radius: 12px;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    color: var(--text-muted);
    transition: all 0.3s ease;
}

.image-placeholder:hover {
    border-color: var(--text-secondary);
    background: rgba(255, 255, 255, 0.02);
}

.image-placeholder i {
    font-size: 3rem;
    margin-bottom: 1rem;
    opacity: 0.5;
}

.image-placeholder p {
    font-size: 1.1rem;
    opacity: 0.7;
}

.product-card {
    background: transparent;
    padding: 2rem;
    border-bottom: 1px solid var(--border-color);
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    gap: 2rem;
}

.product-card:last-child {
    border-bottom: none;
}

.product-card:hover {
    background: rgba(255, 255, 255, 0.02);
}

.product-content {
    flex: 1;
}

.product-meta {
    display: flex;
    align-items: center;
    gap: 1rem;
    min-width: 200px;
}

.product-icon {
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1rem auto;
    font-size: 32px;
    color: var(--text-primary);
    background: var(--bg-tertiary);
    border-radius: 50%;
    transition: transform 0.3s, background 0.3s, color 0.3s;
}

.product-card:hover .product-icon {
    transform: scale(1.15);
    background: var(--bg-primary);
    color: var(--accent-color);
}

.product-title {
    font-size: 1.2rem;
    font-weight: 600;
    margin-bottom: 0.25rem;
    color: var(--text-primary);
}

.product-desc {
    color: var(--text-secondary);
    margin-bottom: 0.5rem;
    line-height: 1.5;
    font-size: 0.9rem;
}

.product-features {
    list-style: none;
    display: flex;
    flex-wrap: wrap;
    gap: 1rem;
}

.product-features li {
    padding: 0.25rem 0.75rem;
    color: var(--text-muted);
    font-size: 0.8rem;
    background: var(--bg-tertiary);
    border-radius: 4px;
    border: 1px solid var(--border-color);
}

.product-features li::before {
    content: none;
}

/* CTA Section 样式 */
.cta-section {
    padding: 4rem 0;
    background: var(--bg-primary);
    color: var(--text-primary);
    text-align: center;
    border-top: 1px solid var(--border-color);
}

.cta-content h2 {
    font-size: 2.5rem;
    margin-bottom: 1rem;
    font-weight: 600;
}

.cta-content p {
    font-size: 1.2rem;
    opacity: 0.9;
    margin-bottom: 3rem;
    color: var(--text-secondary);
}

/* 步骤卡片样式 */
.steps-grid {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 3rem;
    margin-bottom: 4rem;
    max-width: 800px; /* 减少最大宽度适应2个卡片 */
    margin-left: auto;
    margin-right: auto;
    flex-wrap: wrap;
}

/* 平板端适配 */
@media (max-width: 1024px) {
    .steps-grid {
        flex-wrap: wrap;
        justify-content: center;
        gap: 2rem;
        max-width: 600px;
    }
}

.step-card {
    width: 300px;
    height: 180px;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: space-between;
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 1.5rem 1.5rem 1.5rem 1.5rem;
    text-align: center;
    transition: all 0.3s ease;
    flex-shrink: 0;
    box-sizing: border-box;
}

.step-card:hover {
    transform: translateY(-5px);
    border-color: var(--text-primary);
    background: var(--bg-tertiary);
}

.step-card h3 {
    margin-top: 0.5rem;
    margin-bottom: 0.8rem;
    font-size: 1.1rem;
    font-weight: bold;
    color: var(--text-primary);
    line-height: 1.3;
    word-break: break-all;
    height: 1.5em;
    display: flex;
    align-items: center;
    justify-content: center;
}

.step-card p {
    color: var(--text-secondary);
    margin-bottom: 1rem;
    line-height: 1.4;
    height: 3.5em;
    word-break: break-all;
    font-size: 0.95rem;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    flex-grow: 1;
}

.step-card .btn {
    margin-top: auto;
    align-self: center;
    padding: 0;
    font-size: 0.9rem;
    border-radius: 25px;
    width: 120px;
    height: 36px;
    display: flex;
    align-items: center;
    justify-content: center;
    text-decoration: none;
    border: none;
    cursor: pointer;
    transition: all 0.3s ease;
}

/* 投资方式介绍样式 */
.investment-section {
    margin-top: 4rem;
    padding-top: 4rem;
    border-top: 1px solid var(--border-color);
}

.investment-section h2 {
    font-size: 2.2rem;
    margin-bottom: 1rem;
    font-weight: 600;
}

.investment-section > p {
    font-size: 1rem;
    opacity: 0.8;
    margin-bottom: 3rem;
    color: var(--text-secondary);
}

.investment-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
}

.investment-card {
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 2rem;
    text-align: center;
    transition: all 0.3s ease;
}

.investment-card:hover {
    transform: translateY(-3px);
    border-color: var(--text-primary);
    background: var(--bg-tertiary);
}

.investment-icon {
    width: 60px;
    height: 60px;
    margin: 0 auto 1.5rem;
    background: var(--bg-tertiary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    color: var(--text-primary);
    transition: all 0.3s ease;
}

.investment-card:hover .investment-icon {
    transform: scale(1.1);
    background: var(--bg-primary);
    border: 2px solid var(--text-primary);
}

.investment-card h3 {
    font-size: 1.2rem;
    margin-bottom: 1rem;
    color: var(--text-primary);
    line-height: 1.4;
}

.investment-card p {
    color: var(--text-secondary);
    line-height: 1.6;
    font-size: 0.95rem;
}

/* 投资卡片链接样式 */
.investment-card-link {
    text-decoration: none;
    color: inherit;
    display: block;
    cursor: pointer;
}

.investment-card-link:hover {
    text-decoration: none;
    color: inherit;
}

/* 加载动画 */
.loading {
    display: inline-block;
    width: 20px;
    height: 20px;
    border: 3px solid rgba(255,255,255,.3);
    border-radius: 50%;
    border-top-color: #fff;
    animation: spin 1s ease-in-out infinite;
}

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

/* 中等屏幕平板端响应式设计 */
@media (max-width: 1024px) {
    .products-layout {
        gap: 2rem;
    }

    .product-video-area,
    .product-image-area {
        flex: 0 0 auto;
        padding: 0.8rem;
        width: 100%;
        display: flex;
        justify-content: center;
        align-items: center;
    }

    .video-container {
        width: 250px;
        height: 500px;
        border-radius: 14px;
        margin: 0 auto;
    }
    
    .video-container video {
        border-radius: 14px;
        width: 100%;
        height: 100%;
        object-fit: cover;
    }
}

/* 小屏幕平板端响应式设计 */
@media (max-width: 600px) {
    .steps-grid {
        flex-direction: column;
        align-items: center;
        gap: 1.5rem;
        max-width: 100%;
    }
    
    .step-card {
        width: 100%;
        max-width: 300px;
        padding: 1.2rem;
    }
    
    /* 中等屏幕下的社交媒体图标调整 */
    .social-icon {
        width: 30px;
        height: 30px;
    }
    
    .social-placeholder {
        width: 30px;
        height: 30px;
    }
}

/* 移动端响应式设计 */
@media (max-width: 768px) {
    .nav-menu {
        display: none;
    }

    .hero-content {
        grid-template-columns: 1fr;
        text-align: center;
    }

    .hero-text h1 {
        font-size: 2rem;
    }

    .hero-stats {
        justify-content: center;
    }

    .products-layout {
        flex-direction: column;
        gap: 2rem;
        align-items: center;
    }

    .product-video-area,
    .product-image-area {
        flex: none;
        padding: 1rem;
        order: -1; /* 视频区域在移动端显示在前面 */
        width: 100%;
        display: flex;
        justify-content: center;
        align-items: center;
    }

    .video-container {
        width: 200px;
        height: 400px;
        border-radius: 12px;
        margin: 0 auto;
    }
    
    .video-container video {
        border-radius: 12px;
        width: 100%;
        height: 100%;
        object-fit: cover;
    }
    
    .video-container:hover {
        transform: translateY(-2px);
    }

    .product-card {
        flex-direction: column;
        align-items: flex-start;
        gap: 1rem;
    }

    .product-meta {
        min-width: auto;
    }

    .product-features {
        gap: 0.5rem;
    }

    /* CTA Section 响应式 */
    .cta-content h2 {
        font-size: 2rem;
    }

    .investment-section h2 {
        font-size: 1.8rem;
    }

    .investment-grid {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }

    .investment-card {
        padding: 1.5rem;
    }

    .investment-icon {
        width: 50px;
        height: 50px;
        font-size: 1.2rem;
    }

    /* Footer 响应式 */
    .site-footer {
        padding: 3rem 0 2rem;
    }
    
    .footer-content {
        padding: 0 15px;
    }
    
    .footer-desktop {
        display: none;
    }
    
    .footer-mobile {
        display: block;
    }
    
    .footer-logo {
        margin-bottom: 2rem;
    }
    
    .footer-title {
        font-size: 1.1rem;
    }
    
    .footer-copyright {
        flex-direction: column;
        text-align: center;
        gap: 0.5rem;
    }
    
    .footer-legal {
        justify-content: center;
    }
}

/* 额外的BiyaPay风格样式 */
.hero h1 {
    font-weight: 600;
    letter-spacing: -0.5px;
}

.hero .subtitle {
    font-weight: 400;
}

.section-title {
    font-weight: 600;
    letter-spacing: -0.5px;
}

.btn {
    font-weight: 500;
    letter-spacing: 0.5px;
    text-transform: none;
}

@media (max-width: 480px) {
    /* Footer 小屏幕响应式 */
    .site-footer {
        padding: 2rem 0 1.5rem;
    }
    
    .footer-content {
        padding: 0 10px;
    }
    
    .footer-logo-img {
        height: 50px;
    }
    
    .footer-title {
        font-size: 1rem;
        margin-bottom: 1.5rem;
    }
    
    .social-icon {
        width: 28px;
        height: 28px;
    }
    
    .social-placeholder {
        width: 28px;
        height: 28px;
    }
    
    .mobile-auth-buttons {
        width: 100%;
        padding: 0 1rem;
    }
    
    .mobile-register-btn {
        width: 100%;
        max-width: 250px;
        padding: 14px 24px;
        font-size: 1rem;
    }
    
    .footer-mobile-downloads {
        padding: 1.5rem 0;
    }
    
    .mobile-download-section {
        gap: 1.2rem;
    }
    
    .download-img {
        height: 45px;
        width: auto;
    }
    
    /* 超小屏幕视频优化 */
    .product-video-area {
        padding: 1rem;
        width: 100%;
    }
    
    .video-container {
        width: 280px;
        height: auto;
        border-radius: 10px;
        margin: 0 auto;
    }
    
    .video-container video {
        border-radius: 10px;
        width: 100%;
        height: 100%;
        object-fit: cover;
    }
    
    .video-overlay,
    .play-indicator {
        font-size: 0.7rem;
        padding: 0.4rem 0.6rem;
    }
    
    .video-overlay {
        top: 0.5rem;
        left: 0.5rem;
    }
    
    .play-indicator {
        top: 0.5rem;
        right: 0.5rem;
    }
} 

/* 移动端菜单样式 */
#mobile-menu {
    /* 移除阴影效果 */
    max-height: calc(100vh - 64px); /* 减去导航栏高度 */
    overflow-y: auto; /* 菜单内部可滚动 */
}

#mobile-menu .bg-white {
    padding-bottom: 2rem; /* 底部添加padding */
}

.mobile-dropdown-content {
    background-color: #ffffff; /* 改为白色背景 */
    border-left: 3px solid #e5e7eb; /* 添加左侧边框指示 */
    margin-left: 0.5rem; /* 轻微缩进 */
    border-radius: 0 8px 8px 0; /* 右侧圆角 */
}

.mobile-dropdown-content a {
    color: #6b7280; /* 更柔和的文字颜色 */
    font-weight: 500;
    transition: all 0.2s ease;
}

.mobile-dropdown-content a:hover {
    color: #374151; /* hover时文字更深 */
    background-color: #f9fafb; /* 轻微的hover背景 */
}

/* 菜单打开时禁用body滚动 */
body.menu-open {
    overflow: hidden;
    position: fixed;
    width: 100%;
    height: 100%;
}

/* 移动端菜单容器优化 */
#mobile-menu.show {
    position: relative;
    z-index: 999;
}

/* Footer折叠菜单样式改进 */
.collapse-header {
    cursor: pointer;
    transition: all 0.3s ease;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.collapse-header:hover {
    background-color: rgba(255, 255, 255, 0.05);
}

.collapse-icon {
    transition: transform 0.3s ease;
}

.collapse-content {
    display: none;
    padding: 0 0 1rem 0;
    flex-direction: column;
    gap: 0.5rem;
}

.collapse-content.show {
    display: flex;
}

/* 响应式改进 */
@media (max-width: 768px) {
    .navbar {
        position: fixed;
        width: 100%;
        top: 0;
        left: 0;
        background: white;
        z-index: 1000;
    }
    
    .main-content {
        margin-top: 64px; /* 为固定导航栏留出空间 */
    }
} 

/* 工具类 */
.rotate-180 {
    transform: rotate(180deg);
} 

/* 费用对比部分样式 */
.fee-comparison {
    padding: 4rem 0;
    background: var(--bg-secondary);
    border-top: 1px solid var(--border-color);
}

.comparison-table-wrapper {
    overflow-x: auto;
    margin: 3rem 0;
    border-radius: 12px;
    border: 1px solid var(--border-color);
    background: var(--bg-primary);
    box-shadow: var(--shadow-md);
}

.comparison-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.95rem;
    min-width: 600px;
    table-layout: fixed;
}

/* 设置表格列宽 */
.comparison-table th:first-child,
.comparison-table td:first-child {
    width: 30%;
}

.comparison-table th:nth-child(2),
.comparison-table td:nth-child(2) {
    width: 35%;
}

.comparison-table th:last-child,
.comparison-table td:last-child {
    width: 35%;
}

.comparison-table th {
    background: linear-gradient(135deg, var(--bg-secondary) 0%, var(--bg-tertiary) 100%);
    color: var(--text-primary);
    padding: 1.2rem;
    text-align: center;
    font-weight: 700;
    border-bottom: 2px solid var(--border-color);
    position: relative;
    box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.05);
}

.comparison-table .highlight-column {
    background: var(--bg-tertiary);
    color: var(--success-color);
    position: relative;
    border: 2px solid var(--success-color);
    box-shadow: inset 0 0 20px rgba(0, 255, 136, 0.1), 0 0 20px rgba(0, 255, 136, 0.2);
}

.comparison-table td {
    padding: 1.2rem;
    text-align: center;
    border-bottom: 1px solid var(--border-color);
    vertical-align: middle;
    background: var(--bg-primary);
}

.comparison-table .category-row {
    background: var(--bg-secondary);
    color: var(--text-primary);
    font-weight: 600;
    text-align: left;
    padding-left: 1.5rem;
}

.fee-value {
    position: relative;
}

.fee-amount {
    display: block;
    font-size: 1.1rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 0.3rem;
}

.fee-label {
    display: block;
    font-size: 0.8rem;
    color: var(--text-muted);
}

.highlight-column .fee-amount {
    color: var(--success-color);
    font-size: 1.2rem;
    font-weight: 900;
}

.highlight-column .fee-label {
    color: var(--text-secondary);
}

.recommend-badge {
    font-size: 0.75rem;
    font-weight: 500;
    opacity: 0.8;
}

.asset-info {
    text-align: left;
}

.asset-info strong {
    display: block;
    font-size: 1rem;
    margin-bottom: 0.2rem;
    color: var(--text-primary);
}

.asset-info small {
    font-size: 0.85rem;
    color: var(--text-muted);
    font-weight: normal;
}

.fee-amount.blue {
    color: var(--success-color);
    font-weight: 900;
    font-size: 1.3rem;
    text-shadow: 0 0 10px rgba(0, 255, 136, 0.5);
}

.savings-badge {
    display: inline-block;
    background: var(--success-color);
    color: var(--bg-primary);
    padding: 0.3rem 0.8rem;
    border-radius: 20px;
    font-size: 0.75rem;
    font-weight: 600;
    margin-top: 0.3rem;
    box-shadow: 0 0 15px rgba(0, 255, 136, 0.4);
    animation: pulse-glow 2s infinite;
}

@keyframes pulse-glow {
    0%, 100% { box-shadow: 0 0 15px rgba(0, 255, 136, 0.4); }
    50% { box-shadow: 0 0 25px rgba(0, 255, 136, 0.6); }
}

.savings-badge.green {
    background: var(--success-color);
}

/* 其他平台列样式 - 与页面黑白主题一致 */
.comparison-table td:last-child:not(.highlight-column) {
    background: var(--bg-primary);
    color: var(--text-secondary);
}

.comparison-table td:last-child:not(.highlight-column) .fee-amount {
    color: var(--error-color);
    font-weight: 700;
}

/* 费用节省计算器 */
.savings-calculator {
    background: var(--bg-primary);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 2rem;
    margin: 3rem 0;
}

.savings-calculator h3 {
    color: var(--text-primary);
    margin-bottom: 0.5rem;
    font-size: 1.5rem;
}

.savings-calculator p {
    color: var(--text-secondary);
    margin-bottom: 2rem;
}

.calculator-controls {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 2rem;
    margin-bottom: 2rem;
}

.calculator-input label {
    display: block;
    color: var(--text-primary);
    font-weight: 600;
    margin-bottom: 0.5rem;
}

.calculator-input input,
.calculator-input select {
    width: 100%;
    padding: 0.8rem;
    border: 1px solid var(--border-color);
    border-radius: 8px;
    background: var(--bg-secondary);
    color: var(--text-primary);
    font-size: 1rem;
}

.calculator-input input:focus,
.calculator-input select:focus {
    outline: none;
    border-color: var(--accent-color);
    box-shadow: 0 0 0 2px rgba(255, 215, 0, 0.2);
}

.savings-result {
    background: var(--bg-secondary);
    border-radius: 8px;
    padding: 1.5rem;
    border: 1px solid var(--border-color);
}

.result-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0.8rem 0;
    border-bottom: 1px solid var(--border-color);
}

.result-item:last-child {
    border-bottom: none;
}

.result-item.savings {
    background: var(--success-color);
    color: var(--bg-primary);
    margin: 1rem -1.5rem -1.5rem -1.5rem;
    padding: 1rem 1.5rem;
    border-radius: 0 0 8px 8px;
    font-weight: 700;
}

.result-label {
    font-weight: 600;
    color: var(--text-primary);
}

.result-value {
    font-size: 1.2rem;
    font-weight: 700;
    color: var(--text-primary);
}

.result-value.highlight {
    color: var(--accent-color);
}

.savings .result-label,
.savings .result-value {
    color: var(--bg-primary);
}

/* 费用对比图表 */
.chart-container {
    background: var(--bg-primary);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 2rem;
    margin: 3rem 0;
}

.chart-container h3 {
    color: var(--text-primary);
    margin-bottom: 2rem;
    text-align: center;
    font-size: 1.5rem;
}

.fee-chart {
    height: 300px;
    display: flex;
    align-items: end;
    justify-content: center;
    margin: 2rem 0;
}

.chart-bars {
    display: flex;
    align-items: end;
    gap: 2rem;
    height: 100%;
    width: 100%;
    max-width: 600px;
}

.chart-bar-group {
    flex: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
    height: 100%;
}

.chart-bar {
    width: 60px;
    background: var(--text-secondary);
    border-radius: 4px 4px 0 0;
    position: relative;
    min-height: 20px;
    display: flex;
    align-items: end;
    justify-content: center;
    margin-bottom: 1rem;
    transition: all 0.3s ease;
}

.chart-bar.highlight-bar {
    background: var(--accent-color);
    box-shadow: 0 4px 20px rgba(255, 215, 0, 0.3);
}

.chart-bar:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 25px rgba(255, 255, 255, 0.1);
}

.bar-value {
    position: absolute;
    top: -2rem;
    color: var(--text-primary);
    font-weight: 700;
    font-size: 0.9rem;
    white-space: nowrap;
}

.highlight-bar .bar-value {
    color: var(--accent-color);
    font-size: 1rem;
}

.bar-label {
    color: var(--text-secondary);
    font-size: 0.9rem;
    font-weight: 600;
    text-align: center;
    line-height: 1.3;
}

.chart-note {
    text-align: center;
    color: var(--text-muted);
    font-size: 0.85rem;
    margin-top: 1rem;
}

/* 优势总结 */
.advantages-summary {
    margin: 3rem 0;
}

.advantages-summary h3 {
    color: var(--text-primary);
    text-align: center;
    margin-bottom: 2rem;
    font-size: 1.8rem;
}

.advantages-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
}

.advantage-item {
    text-align: center;
    padding: 2rem 1rem;
    background: var(--bg-primary);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    transition: all 0.3s ease;
}

.advantage-item:hover {
    transform: translateY(-5px);
    border-color: var(--accent-color);
    box-shadow: 0 10px 30px rgba(255, 215, 0, 0.1);
}

.advantage-icon {
    width: 60px;
    height: 60px;
    background: var(--accent-color);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1rem auto;
    font-size: 1.5rem;
    color: var(--bg-primary);
}

.advantage-item h4 {
    color: var(--text-primary);
    margin-bottom: 1rem;
    font-size: 1.2rem;
}

.advantage-item p {
    color: var(--text-secondary);
    line-height: 1.6;
}

/* 对比CTA */
.comparison-cta {
    text-align: center;
    background: var(--bg-primary);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 3rem 2rem;
    margin-top: 3rem;
}

.comparison-cta h3 {
    color: var(--text-primary);
    margin-bottom: 1rem;
    font-size: 1.8rem;
}

.comparison-cta p {
    color: var(--text-secondary);
    margin-bottom: 2rem;
    font-size: 1.1rem;
}

/* 费用对比响应式设计 */
@media (max-width: 768px) {
    .comparison-table th,
    .comparison-table td {
        padding: 0.8rem 0.5rem;
        font-size: 0.85rem;
    }
    
    /* 移动端调整列宽比例 */
    .comparison-table th:first-child,
    .comparison-table td:first-child {
        width: 25%;
    }

    .comparison-table th:nth-child(2),
    .comparison-table td:nth-child(2) {
        width: 37.5%;
    }

    .comparison-table th:last-child,
    .comparison-table td:last-child {
        width: 37.5%;
    }
    
    /* 移动端BiyaPay列强调效果 */
    .comparison-table .highlight-column {
        background: var(--bg-tertiary);
        color: var(--success-color);
        border: 2px solid var(--success-color);
        box-shadow: inset 0 0 15px rgba(0, 255, 136, 0.1);
    }
    
    .fee-amount.blue {
        color: var(--success-color);
        font-size: 1.1rem;
        text-shadow: 0 0 8px rgba(0, 255, 136, 0.4);
    }
    
    .savings-badge {
        font-size: 0.7rem;
        padding: 0.2rem 0.6rem;
        box-shadow: 0 0 10px rgba(0, 255, 136, 0.3);
    }
    
    .calculator-controls {
        grid-template-columns: 1fr;
        gap: 1rem;
    }
    
    .chart-bars {
        gap: 1rem;
    }
    
    .chart-bar {
        width: 40px;
    }
    
    .advantages-grid {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }
    
    .advantage-item {
        padding: 1.5rem 1rem;
    }
    
    .comparison-cta {
        padding: 2rem 1rem;
    }
}

@media (max-width: 480px) {
    .fee-comparison {
        padding: 2rem 0;
    }
    
    .comparison-table-wrapper {
        margin: 2rem 0;
    }
    
    .savings-calculator,
    .chart-container {
        padding: 1.5rem;
        margin: 2rem 0;
    }
    
    .fee-chart {
        height: 200px;
    }
}