:root {
    /* --- Light & Professional Palette --- */

    /* 品牌色 (Brand Colors) */
    --primary-color: #4A90E2;       /* 专业而友好的蓝色 */
    --primary-hover: #5AA0F2;       /* 悬停时更亮的蓝色 */
    --primary-color-rgb: 74, 144, 226; /* 对应主色的RGB值 */

    /* 背景色 (Backgrounds & Surfaces) */
    --bg-color: #F8F9FA;           /* 极浅的灰色背景，比纯白更柔和 */
    --card-bg: #FFFFFF;            /* 卡片、UI表面使用纯白，以示区分 */
    --input-bg: #FFFFFF;           /* 输入框背景 */

    /* 文字颜色 (Text Colors) */
    --text-color: #212529;         /* 主要文字 - 深灰色，易于阅读 */
    --text-secondary: #6c757d;       /* 次要文字 - 标准的灰色 */

    /* 边框与分割线 (Borders & Dividers) */
    --border-color: #DEE2E6;       /* 清晰但不过于突兀的分割线 */
    --border-hover-color: #CED4DA; /* 交互元素悬停时边框颜色 */
    
    /* 辅助色 (Accent Colors) - 保持不变，但建议在需要强烈对比时（如成功状态）才使用 */
    --secondary-color: #28a745;
    --secondary-hover: #218838;
    
    /* 状态色 (Status Colors) - 保持不变 */
    --success-color: #28a745;
    --warning-color: #ffc107;
    --error-color: #dc3545;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Poppins', 'Helvetica Neue', Arial, sans-serif;
    background-color: var(--bg-color); 
    color: var(--text-color);
    line-height: 1.7;
    overflow-x: hidden;
}

/* 粒子效果已移除 */

.container { /* 通用内容容器 */
    max-width: 1200px;
    margin: 0 auto;
    padding: 60px 20px; /* 默认内边距 */
    position: relative;
    z-index: 1;
}

/* 页面特定内边距调整 (如果需要比默认的60px小) */
.instance-page-container, 
.contact-page-container { 
    padding-top: 30px;
    padding-bottom: 30px;
}

/* --- 通用排版 --- */
h1, h2, h3 {
    color: var(--text-color);
    font-weight: 700;
}

h1 { /* 页面主标题 - 通常用于 Hero 或页面顶部 */
    font-size: 3.2rem; 
    text-align: center;
    margin-bottom: 20px; 
}
/* 特定页面的主标题调整 (如果需要) */
.instance-page-container h1, 
.contact-page-container h1 { /* contact.html 的主标题 */
    font-size: 2.8rem;
    margin-bottom: 40px;
}

h2 { /* Section 标题 */
    font-size: 2.2rem; 
    text-align: center; 
    margin-bottom: 50px; 
}
/* 卡片内或小区域的H2标题 */
.filters-container h2,
.instance-card h2, /* 注意：这个h2在instance-card中是GPU型号名，并非区域标题 */
.help-center-wrapper h2,
.contact-info-wrapper h2 {
    font-size: 1.5rem;
    color: var(--primary-color);
    text-align: left;
    margin-bottom: 15px; /* 统一间距 */
}

h3 { /* 卡片/列表项内的小标题 */
    font-size: 1.2rem; /* 统一尺寸 */
    margin-bottom: 10px;
    color: var(--text-color);
}

/* --- 通用按钮 --- */
.btn {
    display: inline-block;
    background-color: var(--primary-color);
    color: #fff;
    padding: 12px 28px;
    border-radius: 8px;
    text-decoration: none;
    font-weight: 600;
    transition: all 0.3s ease;
    border: 2px solid var(--primary-color);
    cursor: pointer;
    text-align: center;
    box-shadow: 0 2px 5px rgba(129, 140, 248, 0.2);
}
.btn:hover {
    background-color: var(--primary-hover);
    border-color: var(--primary-hover);
    transform: translateY(-2px);
    box-shadow: 0 4px 10px rgba(129, 140, 248, 0.3);
}
.btn:active {
    transform: translateY(0);
}
.nav-links .btn { /* 导航栏中的按钮 */
    padding: 8px 20px;
}
.btn-reset-filters { /* 实例页的重置筛选按钮 */
    padding: 10px 20px; 
    /* 颜色继承自 .btn */
}

/* --- 次要按钮 --- */
.btn-secondary {
    background-color: transparent;
    color: var(--primary-color);
    border: 2px solid var(--primary-color);
    box-shadow: none;
}
.btn-secondary:hover {
    background-color: rgba(129, 140, 248, 0.1);
    box-shadow: 0 4px 10px rgba(129, 140, 248, 0.15);
}

/* --- 通用导航栏 --- */
.navbar {
    background-color: rgba(255, 255, 255, 0.85);
    backdrop-filter: blur(10px);
    padding: 15px 20px;
    position: sticky;
    top: 0;
    z-index: 1000;
    border-bottom: 1px solid var(--border-color);
    width: 100%;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
}
.navbar-container {
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
}
.logo {
    font-size: 1.7rem; 
    font-weight: 700;
    color: var(--text-color);
    letter-spacing: 0.5px;
    text-decoration: none;
}
.nav-links a {
    color: var(--text-color);
    text-decoration: none;
    margin-left: 25px;
    font-weight: 600;
    transition: color 0.3s ease;
}
.nav-links a:not(.btn):hover {
    color: var(--primary-color);
}

/* --- 页面通用：锚点跳转偏移 --- */
.section-anchor { 
    scroll-margin-top: 75px; /* 请根据实际导航栏高度调整 */
}

/* --- index.html: Hero Section --- */
.hero {
    text-align: center;
    padding: 120px 20px; 
    position: relative;
}
.hero::before {
    content: '';
    position: absolute;
    top: 0; left: 0; right: 0; bottom: 0;
    background: radial-gradient(ellipse at center, rgba(248, 249, 250, 0.1) 0%, rgba(248, 249, 250, 0.8) 100%);
    z-index: 0;
}
.hero > * {
    position: relative;
    z-index: 1;
}
.hero h1 { /* index.html Hero区域的H1特殊样式 */
    margin-bottom: 20px;
    background: linear-gradient(90deg, #212529, #495057);
    background-clip: text;
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    font-size: 3.2rem; /* 保持其独特性 */
    text-align: center;
}
.hero p {
    font-size: 1.2rem;
    max-width: 700px;
    margin: 0 auto 30px;
    color: var(--text-secondary);
}

/* --- 通用卡片背景与样式 --- */
.feature-card,
.pricing-table,     /* index.html 的定价表 */
.use-case-card,
.faq-item,
.filters-container, 
.instance-card,     
.help-center-wrapper, 
.contact-info-wrapper,
.main-footer, /* contact.html 的页脚 (如果使用 .main-footer class) */
.fl-footer-main /* contact.html 的页脚 (如果使用 .fl-footer-main class) */
{
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 12px; 
    backdrop-filter: blur(5px);
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.05);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}
.feature-card:hover,
.use-case-card:hover,
.instance-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.1);
}

/* --- index.html: 特色功能 --- */
.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 30px;
}
.feature-card {
    padding: 30px;
    text-align: center;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}
.feature-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.2);
}
.feature-card .icon {
    font-size: 3rem;
    color: var(--primary-color);
    margin-bottom: 20px;
}

/* --- index.html: 定价表格 --- */
.pricing-table { 
    width: 100%;
    border-collapse: collapse;
    margin-top: 30px;
    overflow: hidden;
}
.pricing-table th, .pricing-table td {
    padding: 20px;
    text-align: center;
    border-bottom: 1px solid var(--border-color);
}
.pricing-table th {
    color: var(--text-secondary);
    font-weight: 600;
    background-color: #FFFFFF;
}
.pricing-table tbody tr:hover {
    background-color: rgba(var(--primary-color-rgb), 0.05);
}
.gpu-model { 
    font-weight: 700;
    /* color: var(--primary-color); -- 保持注释，按需启用 */
}

/* --- index.html: 应用场景 --- */
.use-cases-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
}
.use-case-card {
    padding: 30px;
}
.use-case-card ul {
    list-style-type: none;
    padding-left: 0;
    margin-top: 15px;
}
.use-case-card li::before {
    content: "✓";
    color: var(--primary-color);
    font-weight: bold;
    margin-right: 10px;
}

/* --- index.html: 工作流程 --- */
.how-it-works-steps {
    display: flex;
    justify-content: space-around;
    text-align: center;
    gap: 30px;
    margin-top: 30px;
}
.step { flex: 1; }
.step .step-number {
    width: 60px; height: 60px;
    border: 2px solid var(--primary-color);
    border-radius: 50%;
    display: inline-flex;
    justify-content: center; align-items: center;
    font-size: 1.8rem; font-weight: 700;
    color: var(--primary-color);
    margin-bottom: 20px;
    transition: transform 0.3s ease, background-color 0.3s ease;
}
.step:hover .step-number {
    transform: scale(1.1);
    background-color: var(--primary-color);
    color: #FFFFFF; 
}

/* --- 通用: FAQ Section (用于 index.html 和 contact.html) --- */
.faq-item { margin-bottom: 15px; }
.faq-question {
    padding: 20px; font-weight: 600; cursor: pointer;
    position: relative; transition: color 0.3s ease;
}
.faq-question:hover { color: var(--primary-color); }
.faq-question::after {
    content: '+'; position: absolute; right: 20px;
    font-size: 1.5rem; transition: transform 0.3s ease;
}
.faq-question.open::after { transform: rotate(45deg); }
.faq-answer {
    padding: 0 20px; max-height: 0; overflow: hidden;
    transition: max-height 0.4s ease-out, padding 0.4s ease-out;
}
.faq-answer p { padding-bottom: 20px; margin-bottom: 0; }
.faq-question.open + .faq-answer {
     padding: 0 20px 0 20px; 
}

/* --- instances.html: 筛选区域 --- */
.filters-container {
    padding: 25px; margin-bottom: 40px;
    display: flex; flex-wrap: wrap; gap: 20px;
    align-items: flex-end;
}
.filter-group {
    display: flex; flex-direction: column;
    gap: 8px; flex-grow: 1;
}
.filter-group label {
    font-weight: 600; color: var(--text-secondary); font-size: 0.9rem;
}
.filter-group select {
    padding: 10px; background-color: var(--input-bg);
    border: 1px solid var(--border-color); border-radius: 5px;
    color: var(--text-color); font-family: inherit; font-size: 1rem;
    appearance: none; -webkit-appearance: none; -moz-appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' width='18' height='18' fill='%238A92FF'%3E%3Cpath d='M7 10l5 5 5-5H7z'/%3E%3Cpath d='M0 0h24v24H0z' fill='none'/%3E%3C/svg%3E");
    background-repeat: no-repeat; background-position: right 10px center;
    padding-right: 30px; 
}
.filter-group select:focus { 
    outline: none; 
    border-color: var(--primary-color);
    box-shadow: 0 0 0 2px rgba(var(--primary-color-rgb), 0.2);
}
.filter-group select:hover {
    border-color: var(--border-hover-color);
}
.filter-group select option { 
    background-color: var(--input-bg); color: var(--text-color); padding: 8px 12px;             
}
.filter-group select option:hover { background-color: var(--primary-color); color: #F0F2F5; }
.filter-group select option:checked { background-color: var(--primary-hover); color: #F0F2F5; }

/* --- instances.html: 实例卡片 --- */
.instance-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 25px;
}
.instance-card { 
    padding: 25px; display: flex; flex-direction: column;
    opacity: 0; transform: scale(0.95) translateY(10px);
    transition: opacity 0.4s ease-out, transform 0.4s ease-out;
}
.instance-card.visible { opacity: 1; transform: scale(1) translateY(0); }
.instance-card:hover {
    transform: translateY(-5px) scale(1.02);
    box-shadow: 0 10px 25px rgba(var(--primary-color-rgb), 0.15);
}
.instance-card-header { margin-bottom: 20px; }
.instance-card .gpu-model-tag {
    display: inline-block; background-color: var(--primary-color); color: #fff;
    padding: 6px 12px; border-radius: 5px;
    font-size: 0.9rem; font-weight: 600; margin-bottom: 10px;
}
.instance-card-specs { list-style: none; padding: 0; margin-bottom: 20px; flex-grow: 1; }
.instance-card-specs li {
    margin-bottom: 10px; color: var(--text-secondary); font-size: 0.95rem;
    display: flex; justify-content: space-between;
}
.instance-card-specs li strong { color: var(--text-color); margin-right: 5px; }
.instance-card-price {
    font-size: 1.8rem; font-weight: 700; color: var(--primary-color);
    margin-bottom: 20px; text-align: right;
}
.instance-card-price span { font-size: 0.9rem; color: var(--text-secondary); font-weight: 400; }
.no-results {
    grid-column: 1 / -1; text-align: center; padding: 50px;
    font-size: 1.2rem; color: var(--text-secondary);
}

/* --- contact.html: 特定内容区域 --- */
.contact-header { 
    text-align: center;
    /* padding-bottom: 50px; -- 已由 .container 或页面特定容器处理 */
}
.contact-header p {
    font-size: 1.1rem; max-width: 100%;
    margin: 15px auto 30px; color: var(--text-secondary);
    line-height: 1.6;
}
.contact-grid { 
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 40px;
}
.help-center-wrapper, 
.contact-info-wrapper { 
    padding: 30px;
}
/* .help-center-wrapper h2 -- 已被卡片内h2规则覆盖 */
.help-center-wrapper .help-intro { color: var(--text-secondary); margin-bottom: 30px; }
.help-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; }
.help-card {
    background-color: var(--card-bg); 
    padding: 25px; 
    border-radius: 12px; 
    text-decoration: none;
    color: var(--text-color);
    transition: all 0.3s ease;
    border: 1px solid var(--border-color);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.05);
}
.help-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 12px 20px rgba(129, 140, 248, 0.15);
    border-color: rgba(129, 140, 248, 0.3);
}
.help-card .help-icon { font-size: 2rem; margin-bottom: 10px; }
.help-card p { font-size: 0.9rem; color: var(--text-secondary); line-height: 1.6; }
.contact-info-item { margin-bottom: 25px; display: flex; align-items: flex-start; }
.contact-info-item .icon {
    font-size: 1.5rem; color: var(--primary-color);
    margin-right: 15px; margin-top: 5px;
}
.contact-info-item a { color: var(--text-color); text-decoration: none; }
.contact-info-item a:hover { color: var(--primary-color); }
.qr-code-wrapper img { max-width: 150px; border-radius: 12px; margin-top: 10px; box-shadow: 0 4px 12px rgba(0, 0, 0, 0.08); }


/* --- 页脚样式 (统一使用 "Command Deck" 风格) --- */
.footer-command-deck {
    position: relative;
    background-color: transparent;
    color: var(--text-secondary);
    padding: 40px 0 20px;
    margin-top: 80px;
    z-index: 1;
    border-top: 1px solid var(--border-color); 
    backdrop-filter: none; /* 毛玻璃效果 */
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.6s ease-out, transform 0.6s ease-out;
}
.footer-command-deck.is-visible {
    opacity: 1;
    transform: translateY(0);
}
/* CTA Section (如果您的HTML中包含此部分) */
.footer-command-deck__cta-section { 
    text-align: center; padding: 40px 20px; margin-bottom: 40px;
    background-color: rgba(var(--primary-color-rgb), 0.1);
    border-radius: 8px; border: 1px solid rgba(var(--primary-color-rgb), 0.2);
}
.footer-command-deck__cta-section h2 { font-size: 1.8rem; color: #fff; margin-bottom: 15px; text-align: center; }
.footer-command-deck__cta-section p { font-size: 1rem; margin-bottom: 25px; max-width: 600px; margin-left: auto; margin-right: auto;}
.footer-command-deck__cta-section .cta-buttons a { margin: 0 10px; }
.footer-command-deck__cta-section .btn-secondary-cta { background-color: transparent; border: 1px solid var(--primary-color); color: var(--primary-color); }
.footer-command-deck__cta-section .btn-secondary-cta:hover { background-color: var(--primary-color); color: #fff; }

.footer-command-deck__main-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 30px;
    margin-bottom: 30px;
}
.footer-command-deck .footer-column .logo { 
    font-size: 1.8rem; font-weight: 700; color: var(--text-color); text-decoration: none;
    display: inline-block; margin-bottom: 10px;
}
.footer-command-deck .footer-column .tagline { font-size: 0.9rem; margin-bottom: 15px; }
.footer-command-deck .footer-column h4 { font-size: 1.1rem; color: var(--text-color); margin-bottom: 15px; font-weight: 600; text-align: left;}
.footer-command-deck .footer-column ul { list-style: none; padding: 0; }
.footer-command-deck .footer-column ul li { margin-bottom: 10px; }
.footer-command-deck .footer-column ul li a,
.footer-command-deck__bottom-bar a {
    color: var(--text-secondary); text-decoration: none; transition: color 0.3s ease;
}
.footer-command-deck .footer-column ul li a:hover,
.footer-command-deck__bottom-bar a:hover {
    color: var(--primary-color); text-decoration: underline;
}
.footer-command-deck .social-icons { display: flex; gap: 12px; margin-top: 15px; }
.footer-command-deck .social-icons a {
    display: inline-flex; justify-content: center; align-items: center;
    width: 32px; height: 32px; border-radius: 50%;
    background-color: #E9ECEF; color: var(--text-color); text-decoration: none;
    transition: background-color 0.3s ease, transform 0.3s ease;
    font-weight: bold; font-size: 0.8rem;
}
.footer-command-deck .social-icons a:hover { background-color: var(--primary-color); transform: translateY(-2px); }
.footer-command-deck__bottom-bar {
    text-align: center; padding-top: 20px; margin-top: 30px;
    border-top: 1px solid var(--border-color); font-size: 0.85rem;
}
.footer-command-deck__bottom-bar p { margin-bottom: 5px; }


/* --- contact.html: 备选页脚样式 (如果 contact.html 使用 .fl-footer-main) --- */
/* 如果 contact.html 也使用 .footer-command-deck，则以下样式可以删除 */
.fl-footer-wrapper { /* contact.html 页脚外部包裹 */
    padding: 2rem 0;
}
.fl-footer-main { /* contact.html 页脚主体 */
   background: var(--bg-color);
    border: none;
    box-shadow: none;
    color: var(--text-color);
    padding: 40px 0;
}
.fl-footer__content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 20px;
}
.fl-footer__logo { /* contact.html 页脚内的logo */
    font-size: 1.8rem;
    font-weight: bold;
    color: var(--text-color); 
}
.fl-footer-main a { /* contact.html 页脚内的链接 */
    color: inherit; /* 继承 .fl-footer-main 的 --text-color */
    text-decoration: none; 
    transition: color 0.3s ease;
}
.fl-footer__links a { /* contact.html 页脚导航链接的间距 */
    margin: 0 15px;
}
.fl-footer-main a:hover {
    color: var(--primary-color);
}
.fl-footer__copyright { /* contact.html 页脚底部版权 */
    font-size: 0.9rem;
    width: 100%;
    text-align: center;
}

/* --- 值得信赖 (Trust Section) 样式 --- */
#trust-and-compliance {
    background-color: rgba(var(--primary-color-rgb), 0.05); /* 使用主题色的极淡背景，使其突出 */
    border-radius: 12px;
    padding-top: 50px;
    padding-bottom: 50px;
}

.section-title { /* 通用区域标题样式 */
    font-size: 2.2rem;
    text-align: center;
    margin-bottom: 15px;
    color: var(--text-color);
}

.section-subtitle { /* 通用区域副标题样式 */
    font-size: 1.1rem;
    text-align: center;
    max-width: 700px;
    margin: 0 auto 50px auto;
    color: var(--text-secondary);
}

.trust-grid {
    display: grid;
    grid-template-columns: 1fr 1fr; /* 两列布局 */
    gap: 30px;
}

.trust-card {
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 30px;
    text-align: center;
}

.trust-icon {
    font-size: 3rem;
    color: var(--primary-color);
    margin-bottom: 20px;
}

.trust-card h3 {
    font-size: 1.3rem;
    margin-bottom: 15px;
    color: var(--text-color);
}

.trust-card p {
    color: var(--text-secondary);
    line-height: 1.8;
}


.trust-logo-container {
    position: relative; /* 为内部图片的绝对定位提供基准 */
    height: 80px;       /* 保持您之前定义的高度 */
    width: 150px;       /* 保持您之前定义的最大宽度，现在作为容器宽度 */
    margin: 0 auto 20px auto; /* 让Logo容器在卡片内部水平居中 */
}

/* 两张图片共同的样式 */
.trust-logo-container img {
    position: absolute; /* 让两张图片能够完美重叠在一起 */
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    object-fit: contain; /* 确保图片等比缩放并完整显示在容器内 */
    
    /* 为透明度变化添加平滑过渡动画 */
    transition: opacity 0.4s ease-in-out;
}

/* 默认情况下，那张用于悬浮显示的原色图片是完全透明的 */
.trust-logo-container .logo-hover {
    opacity: 0;
}

/* 当鼠标悬浮在【整个卡片】(.trust-card)上时，让原色图片显示出来 */
.trust-card:hover .trust-logo-container .logo-hover {
    opacity: 1;
}



.footer-certs {
    margin-top: 15px;
    display: flex;
    justify-content: center;
    align-items: center;
    flex-wrap: wrap; /* 在小屏幕上允许换行 */
    gap: 30px; /* 认证项目之间的间距 */
}

/* 单个认证项目 (图标 + 文字) 的容器 */
.cert-item {
    display: flex;
    align-items: center; /* 垂直居中对齐图标和文字 */
    gap: 8px; /* 图标和文字之间的间距 */
    opacity: 0.7; /* 整体设置一个略微暗淡的透明度，使其低调地融入页脚 */
}

/* 认证Logo图片的样式 */
.cert-item img {
    height: 24px; /* 调整一个适合与文字搭配的高度 */
}

/* 认证文字的样式 */
.cert-item span {
    font-size: 0.85rem; /* 设置一个合适的字号 */
    color: var(--text-secondary); /* 使用您的次要文字颜色 */
}

/* 移动端响应式 */
@media (max-width: 768px) {
    .trust-grid {
        grid-template-columns: 1fr; /* 单列布局 */
    }
    .section-title { font-size: 1.8rem; }
    .section-subtitle { font-size: 1rem; }
}


/* --- 通用响应式设计 --- */
@media (max-width: 992px) { /* 平板 */
    .contact-grid { grid-template-columns: 1fr; }
    /* 如果您使用了 .footer-nebula-hub__grid (已删除，但保留响应式示例) */
}

@media (max-width: 768px) { /* 移动端 */
    .container { padding: 40px 15px; }
    h1 { font-size: 2.2rem; }
    .instance-page-container h1, .contact-page-container h1 { font-size: 2rem; }
    
    h2 { font-size: 1.8rem; margin-bottom: 30px; }
    .filters-container h2, .instance-card h2, .help-center-wrapper h2, .contact-info-wrapper h2 { font-size: 1.3rem; }

    .navbar-container { flex-direction: column; gap: 15px; }
    .nav-links { display: flex; flex-wrap: wrap; justify-content: center; gap:10px 15px; }
    .nav-links a { margin-left: 0; }
    
    .how-it-works-steps { flex-direction: column; }
    .filters-container { flex-direction: column; align-items: stretch; }

    .pricing-table thead { display: none; }
    .pricing-table, .pricing-table tbody, .pricing-table tr, .pricing-table td {
        display: block; width: 100%;
    }
    .pricing-table tr { margin-bottom: 15px; border-radius: 8px; border: 1px solid var(--border-color); }
    .pricing-table td {
        text-align: right; position: relative; padding-left: 50%;
        border-bottom: 1px solid var(--border-color);
    }
    .pricing-table td:last-child { border-bottom: 0; }
    .pricing-table td::before {
        content: attr(data-label); position: absolute; left: 15px;
        width: calc(50% - 30px); text-align: left; font-weight: bold;
        color: var(--text-secondary);
    }
    .help-grid { grid-template-columns: 1fr; }
}