/* ==================== Filee 主题变量 ==================== */
:root {
    /* 主色调 - 取自上传的 banner 图片 */
    --primary: #6C5CE7;          /* 主紫色（logo 圆环） */
    --primary-dark: #5A4BD1;
    --primary-light: #8B7CF0;
    --primary-soft: #F0EEFB;
    --accent: #52C41A;           /* 辅助绿色（logo 绿色段） */
    --accent-dark: #44A814;
    --accent-light: #7DD94F;
    --accent-soft: #EAF9E0;

    /* 文字 */
    --text: #1A1A2E;             /* 深色文字 */
    --text-secondary: #5B5B7A;   /* 次要文字 */
    --text-muted: #8A8AA3;       /* 辅助文字 */

    /* 背景 */
    --bg: #FFFFFF;
    --bg-soft: #F7F7FC;
    --bg-gradient: linear-gradient(135deg, #F0EEFB 0%, #EAF9E0 100%);

    /* 边框 */
    --border: #E8E8F0;
    --border-light: #F0F0F5;

    /* 阴影 */
    --shadow-sm: 0 2px 8px rgba(108, 92, 231, 0.06);
    --shadow-md: 0 8px 24px rgba(108, 92, 231, 0.1);
    --shadow-lg: 0 20px 60px rgba(108, 92, 231, 0.15);
    --shadow-accent: 0 12px 32px rgba(82, 196, 26, 0.18);

    /* 圆角 */
    --radius-sm: 8px;
    --radius-md: 14px;
    --radius-lg: 22px;
    --radius-xl: 32px;

    /* 动画 */
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-fast: all 0.15s ease;

    /* 宽度 */
    --container: 1200px;
}

/* ==================== 重置与基础 ==================== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
    scroll-padding-top: 80px;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
    color: var(--text);
    background: var(--bg);
    line-height: 1.7;
    -webkit-font-smoothing: antialiased;
    overflow-x: hidden;
}

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

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

button {
    cursor: pointer;
    border: none;
    background: none;
    font-family: inherit;
}

.container {
    max-width: var(--container);
    margin: 0 auto;
    padding: 0 24px;
}

/* ==================== 导航栏 ==================== */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: rgba(255, 255, 255, 0.8);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid transparent;
    transition: var(--transition);
}

.navbar.scrolled {
    border-bottom-color: var(--border);
    box-shadow: var(--shadow-sm);
}

.nav-container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 72px;
}

.logo {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 22px;
    font-weight: 700;
    color: var(--text);
}

.logo-img {
    width: 38px;
    height: 38px;
    border-radius: 10px;
    object-fit: contain;
}

.logo-text {
    background: linear-gradient(135deg, var(--primary), var(--accent));
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
}

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

.nav-links a {
    padding: 8px 16px;
    font-size: 15px;
    font-weight: 500;
    color: var(--text-secondary);
    border-radius: var(--radius-sm);
}

.nav-links a:hover:not(.nav-download-btn) {
    color: var(--primary);
    background: var(--primary-soft);
}

.nav-download-btn {
    background: linear-gradient(135deg, var(--primary), var(--primary-dark));
    color: #fff !important;
    padding: 9px 22px !important;
    font-weight: 600 !important;
    box-shadow: 0 4px 14px rgba(108, 92, 231, 0.35);
    margin-left: 8px;
}

.nav-download-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(108, 92, 231, 0.45);
}

.hamburger {
    display: none;
    flex-direction: column;
    gap: 5px;
    padding: 8px;
}

.hamburger span {
    display: block;
    width: 24px;
    height: 2px;
    background: var(--text);
    border-radius: 2px;
    transition: var(--transition);
}

.hamburger.active span:nth-child(1) {
    transform: translateY(7px) rotate(45deg);
}

.hamburger.active span:nth-child(2) {
    opacity: 0;
}

.hamburger.active span:nth-child(3) {
    transform: translateY(-7px) rotate(-45deg);
}

/* ==================== 首屏 Hero ==================== */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding: 120px 0 80px;
    background: var(--bg-gradient);
    overflow: hidden;
}

.hero::before {
    content: "";
    position: absolute;
    top: -200px;
    right: -200px;
    width: 600px;
    height: 600px;
    background: radial-gradient(circle, rgba(108, 92, 231, 0.12) 0%, transparent 70%);
    border-radius: 50%;
    pointer-events: none;
}

.hero::after {
    content: "";
    position: absolute;
    bottom: -200px;
    left: -100px;
    width: 500px;
    height: 500px;
    background: radial-gradient(circle, rgba(82, 196, 26, 0.1) 0%, transparent 70%);
    border-radius: 50%;
    pointer-events: none;
}

.hero-container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
    position: relative;
    z-index: 1;
}

.hero-left {
    animation: fadeInUp 0.8s ease;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 8px 18px;
    background: rgba(255, 255, 255, 0.7);
    border: 1px solid rgba(108, 92, 231, 0.15);
    border-radius: 50px;
    font-size: 14px;
    color: var(--text-secondary);
    margin-bottom: 28px;
    backdrop-filter: blur(10px);
}

.badge-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--accent);
    box-shadow: 0 0 0 4px rgba(82, 196, 26, 0.2);
    animation: pulse 2s infinite;
}

.badge-dot {
    animation: pulse 2s infinite;
}

@keyframes pulse {
    0%, 100% { box-shadow: 0 0 0 4px rgba(82, 196, 26, 0.2); }
    50% { box-shadow: 0 0 0 8px rgba(82, 196, 26, 0); }
}

.badge-sep {
    color: var(--text-muted);
}

.hero-badge strong {
    color: var(--primary);
    font-weight: 700;
}

.hero-title {
    font-size: clamp(36px, 5vw, 58px);
    font-weight: 800;
    line-height: 1.15;
    letter-spacing: -1px;
    margin-bottom: 24px;
    color: var(--text);
}

.gradient-text {
    background: linear-gradient(135deg, var(--primary) 0%, var(--accent) 100%);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
}

.hero-subtitle {
    font-size: 17px;
    color: var(--text-secondary);
    line-height: 1.8;
    margin-bottom: 32px;
    max-width: 540px;
}

.hero-meta {
    display: flex;
    gap: 32px;
    margin-bottom: 36px;
    flex-wrap: wrap;
}

.meta-item {
    display: flex;
    flex-direction: column;
}

.meta-num {
    font-size: 32px;
    font-weight: 800;
    background: linear-gradient(135deg, var(--primary), var(--accent));
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    line-height: 1;
}

.meta-label {
    font-size: 13px;
    color: var(--text-muted);
    margin-top: 6px;
}

.hero-actions {
    display: flex;
    gap: 16px;
    margin-bottom: 32px;
    flex-wrap: wrap;
}

/* 按钮 */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    padding: 14px 28px;
    font-size: 16px;
    font-weight: 600;
    border-radius: var(--radius-md);
    transition: var(--transition);
    cursor: pointer;
    border: none;
    white-space: nowrap;
}

.btn-lg {
    padding: 16px 34px;
    font-size: 17px;
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary), var(--primary-dark));
    color: #fff;
    box-shadow: 0 8px 24px rgba(108, 92, 231, 0.35);
}

.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 12px 32px rgba(108, 92, 231, 0.45);
}

.btn-ghost {
    background: rgba(255, 255, 255, 0.8);
    color: var(--text);
    border: 1.5px solid var(--border);
    backdrop-filter: blur(10px);
}

.btn-ghost:hover {
    background: #fff;
    border-color: var(--primary);
    color: var(--primary);
    transform: translateY(-3px);
}

.hero-platforms {
    display: flex;
    align-items: center;
    gap: 10px;
    flex-wrap: wrap;
    font-size: 14px;
    color: var(--text-muted);
}

.platform-tag {
    padding: 5px 14px;
    background: rgba(255, 255, 255, 0.7);
    border: 1px solid var(--border);
    border-radius: 50px;
    font-size: 13px;
    color: var(--text-secondary);
    font-weight: 500;
}

/* 首屏截图 */
.hero-right {
    display: flex;
    justify-content: center;
    align-items: center;
    animation: fadeInUp 1s ease;
}

.hero-screenshot {
    position: relative;
    width: 100%;
}

.screenshot-frame {
    position: relative;
    border-radius: var(--radius-lg);
    overflow: hidden;
    background: #fff;
    box-shadow: var(--shadow-lg);
    border: 1px solid rgba(255, 255, 255, 0.8);
    transform: perspective(1000px) rotateY(-6deg) rotateX(2deg);
    transition: var(--transition);
}

.screenshot-frame:hover {
    transform: perspective(1000px) rotateY(-3deg) rotateX(1deg) translateY(-6px);
}

.screenshot-img {
    width: 100%;
    height: auto;
    object-fit: cover;
    background: linear-gradient(135deg, #F0EEFB 0%, #EAF9E0 100%);
}

.screenshot-glow {
    position: absolute;
    inset: -20px;
    background: radial-gradient(circle at 50% 50%, rgba(108, 92, 231, 0.15), transparent 60%);
    filter: blur(40px);
    z-index: -1;
    border-radius: var(--radius-xl);
}

/* ==================== 通用 Section ==================== */
.section {
    padding: 100px 0;
}

.section-alt {
    background: var(--bg-soft);
}

.section-header {
    text-align: center;
    max-width: 720px;
    margin: 0 auto 64px;
}

.section-tag {
    display: inline-block;
    padding: 6px 18px;
    background: var(--primary-soft);
    color: var(--primary);
    border-radius: 50px;
    font-size: 14px;
    font-weight: 600;
    margin-bottom: 18px;
}

.section-title {
    font-size: clamp(30px, 4vw, 44px);
    font-weight: 800;
    line-height: 1.2;
    margin-bottom: 18px;
    color: var(--text);
    letter-spacing: -0.5px;
}

.section-desc {
    font-size: 17px;
    color: var(--text-secondary);
    line-height: 1.7;
}

/* ==================== 功能特点 ==================== */
.features-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}

.feature-card {
    padding: 36px 30px;
    background: #fff;
    border: 1px solid var(--border-light);
    border-radius: var(--radius-lg);
    transition: var(--transition);
}

.feature-card:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow-md);
    border-color: transparent;
}

.feature-icon {
    width: 56px;
    height: 56px;
    border-radius: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 22px;
}

.icon-purple {
    background: var(--primary-soft);
    color: var(--primary);
}

.icon-green {
    background: var(--accent-soft);
    color: var(--accent-dark);
}

.feature-card h3 {
    font-size: 19px;
    font-weight: 700;
    margin-bottom: 12px;
    color: var(--text);
}

.feature-card p {
    font-size: 15px;
    color: var(--text-secondary);
    line-height: 1.75;
}

/* ==================== 格式支持 ==================== */
.formats-showcase {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 24px;
}

.format-category {
    padding: 30px;
    background: #fff;
    border: 1px solid var(--border-light);
    border-radius: var(--radius-lg);
    transition: var(--transition);
}

.format-category:hover {
    box-shadow: var(--shadow-sm);
    border-color: var(--primary-soft);
}

.format-category h4 {
    font-size: 18px;
    font-weight: 700;
    margin-bottom: 18px;
    color: var(--text);
}

.format-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.format-tags span {
    padding: 6px 14px;
    background: var(--bg-soft);
    border: 1px solid var(--border-light);
    border-radius: 50px;
    font-size: 13px;
    font-weight: 600;
    color: var(--primary);
    transition: var(--transition-fast);
}

.format-tags span:hover {
    background: var(--primary);
    color: #fff;
    border-color: var(--primary);
}

/* ==================== 用户评价 ==================== */
.reviews-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}

.review-card {
    padding: 30px;
    background: #fff;
    border: 1px solid var(--border-light);
    border-radius: var(--radius-lg);
    transition: var(--transition);
}

.review-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-md);
}

.review-stars {
    color: #FFB800;
    font-size: 16px;
    letter-spacing: 2px;
    margin-bottom: 16px;
}

.review-text {
    font-size: 15px;
    color: var(--text-secondary);
    line-height: 1.75;
    margin-bottom: 22px;
}

.review-author {
    display: flex;
    align-items: center;
    gap: 12px;
}

.avatar {
    width: 44px;
    height: 44px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 18px;
    font-weight: 700;
    color: #fff;
    flex-shrink: 0;
}

.avatar-purple {
    background: linear-gradient(135deg, var(--primary), var(--primary-light));
}

.avatar-green {
    background: linear-gradient(135deg, var(--accent), var(--accent-light));
}

.author-name {
    font-size: 15px;
    font-weight: 700;
    color: var(--text);
}

.author-role {
    font-size: 13px;
    color: var(--text-muted);
}

/* ==================== FAQ ==================== */
.faq-list {
    max-width: 820px;
    margin: 0 auto;
}

.faq-item {
    background: #fff;
    border: 1px solid var(--border-light);
    border-radius: var(--radius-md);
    margin-bottom: 14px;
    overflow: hidden;
    transition: var(--transition);
}

.faq-item:hover {
    border-color: var(--primary-soft);
}

.faq-item.active {
    border-color: var(--primary-soft);
    box-shadow: var(--shadow-sm);
}

.faq-question {
    width: 100%;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 22px 28px;
    font-size: 16px;
    font-weight: 600;
    color: var(--text);
    text-align: left;
    gap: 16px;
}

.faq-question span {
    flex: 1;
}

.faq-arrow {
    flex-shrink: 0;
    color: var(--primary);
    transition: transform 0.3s ease;
}

.faq-item.active .faq-arrow {
    transform: rotate(180deg);
}

.faq-answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.35s ease;
}

.faq-answer p {
    padding: 0 28px 22px;
    font-size: 15px;
    color: var(--text-secondary);
    line-height: 1.8;
}

/* ==================== 下载区域 ==================== */
.download-section {
    padding: 100px 0;
    background: var(--bg-gradient);
    position: relative;
    overflow: hidden;
}

.download-section::before {
    content: "";
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 800px;
    height: 800px;
    background: radial-gradient(circle, rgba(108, 92, 231, 0.08), transparent 60%);
    pointer-events: none;
}

.download-card {
    position: relative;
    background: rgba(255, 255, 255, 0.85);
    backdrop-filter: blur(20px);
    border: 1px solid rgba(255, 255, 255, 0.9);
    border-radius: var(--radius-xl);
    padding: 56px;
    box-shadow: var(--shadow-lg);
    text-align: center;
}

.download-tag {
    display: inline-block;
    padding: 6px 20px;
    background: linear-gradient(135deg, var(--primary), var(--accent));
    color: #fff;
    border-radius: 50px;
    font-size: 14px;
    font-weight: 600;
    margin-bottom: 20px;
}

.download-title {
    font-size: clamp(30px, 4vw, 42px);
    font-weight: 800;
    margin-bottom: 18px;
    color: var(--text);
}

.download-desc {
    font-size: 16px;
    color: var(--text-secondary);
    max-width: 640px;
    margin: 0 auto 32px;
    line-height: 1.8;
}

.download-desc strong {
    color: var(--primary);
}

.download-meta {
    display: flex;
    justify-content: center;
    gap: 40px;
    margin-bottom: 40px;
    flex-wrap: wrap;
}

.dm-item {
    font-size: 15px;
    color: var(--text-secondary);
}

.dm-item strong {
    color: var(--primary);
    font-size: 22px;
    font-weight: 800;
    margin-right: 4px;
}

.download-buttons {
    display: flex;
    justify-content: center;
    margin-bottom: 24px;
}

.download-btn {
    display: flex;
    align-items: center;
    gap: 18px;
    padding: 0;
    border-radius: var(--radius-xl);
    color: #fff;
    transition: var(--transition);
    box-shadow: 0 14px 40px rgba(108, 92, 231, 0.35);
    overflow: hidden;
    position: relative;
}

/* 单按钮主样式：使用品牌紫绿渐变，更突出 */
.download-btn-main {
    padding: 22px 42px;
    background: linear-gradient(135deg, var(--primary) 0%, var(--accent) 100%);
    background-size: 200% 200%;
    animation: gradientShift 6s ease infinite;
}

@keyframes gradientShift {
    0% { background-position: 0% 50%; }
    50% { background-position: 100% 50%; }
    100% { background-position: 0% 50%; }
}

.download-btn-main:hover {
    transform: translateY(-4px) scale(1.02);
    box-shadow: 0 20px 50px rgba(108, 92, 231, 0.5);
}

.download-btn-main::before {
    content: "";
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.25), transparent);
    transition: left 0.6s ease;
}

.download-btn-main:hover::before {
    left: 100%;
}

.db-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.db-text {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    line-height: 1.3;
    flex: 1;
}

.db-label {
    font-size: 14px;
    opacity: 0.85;
    letter-spacing: 1px;
}

.db-platform {
    font-size: 22px;
    font-weight: 700;
}

.db-arrow {
    display: flex;
    align-items: center;
    justify-content: center;
    margin-left: 8px;
    opacity: 0.9;
    transition: transform 0.3s ease;
}

.download-btn-main:hover .db-arrow {
    transform: translateX(6px);
}

.download-hint {
    font-size: 13px;
    color: var(--text-muted);
}

/* ==================== 页脚 ==================== */
.footer {
    background: var(--text);
    color: rgba(255, 255, 255, 0.7);
    padding-top: 64px;
}

.footer-container {
    display: grid;
    grid-template-columns: 1fr 2fr;
    gap: 60px;
    padding-bottom: 48px;
}

.footer-brand .logo-text {
    background: linear-gradient(135deg, var(--primary-light), var(--accent-light));
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
}

.footer-desc {
    margin-top: 16px;
    font-size: 14px;
    line-height: 1.7;
    max-width: 320px;
    color: rgba(255, 255, 255, 0.55);
}

.footer-links {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 40px;
}

.footer-col h5 {
    color: #fff;
    font-size: 15px;
    font-weight: 700;
    margin-bottom: 18px;
}

.footer-col a {
    display: block;
    font-size: 14px;
    color: rgba(255, 255, 255, 0.55);
    margin-bottom: 10px;
}

.footer-col a:hover {
    color: var(--primary-light);
}

.footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    padding: 24px 0;
    text-align: center;
    font-size: 13px;
    color: rgba(255, 255, 255, 0.4);
}

/* ==================== 返回顶部 ==================== */
.back-to-top {
    position: fixed;
    bottom: 32px;
    right: 32px;
    width: 48px;
    height: 48px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--primary), var(--primary-dark));
    color: #fff;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: var(--shadow-md);
    opacity: 0;
    visibility: hidden;
    transform: translateY(20px);
    transition: var(--transition);
    z-index: 999;
}

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

.back-to-top:hover {
    transform: translateY(-4px);
    box-shadow: 0 12px 28px rgba(108, 92, 231, 0.4);
}

/* ==================== 滚动动画 ==================== */
.reveal {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.7s ease, transform 0.7s ease;
}

.reveal.active {
    opacity: 1;
    transform: translateY(0);
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* ==================== 响应式 ==================== */
@media (max-width: 968px) {
    .hero-container {
        grid-template-columns: 1fr;
        gap: 48px;
    }

    .hero-right {
        order: -1;
    }

    .screenshot-frame {
        transform: none;
    }

    .features-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .reviews-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .formats-showcase {
        grid-template-columns: 1fr;
    }

    .footer-container {
        grid-template-columns: 1fr;
        gap: 40px;
    }
}

@media (max-width: 768px) {
    .nav-links {
        position: fixed;
        top: 72px;
        left: 0;
        right: 0;
        background: rgba(255, 255, 255, 0.98);
        backdrop-filter: blur(20px);
        flex-direction: column;
        align-items: stretch;
        padding: 20px;
        gap: 4px;
        box-shadow: var(--shadow-md);
        transform: translateY(-120%);
        transition: transform 0.3s ease;
    }

    .nav-links.active {
        transform: translateY(0);
    }

    .nav-links a {
        padding: 14px 18px;
        text-align: center;
    }

    .nav-download-btn {
        margin: 8px 0 0;
    }

    .hamburger {
        display: flex;
    }

    .hero {
        padding: 100px 0 60px;
    }

    .hero-meta {
        gap: 24px;
    }

    .meta-num {
        font-size: 26px;
    }

    .section {
        padding: 70px 0;
    }

    .features-grid {
        grid-template-columns: 1fr;
    }

    .reviews-grid {
        grid-template-columns: 1fr;
    }

    .footer-links {
        grid-template-columns: repeat(2, 1fr);
        gap: 30px;
    }

    .download-card {
        padding: 36px 24px;
    }

    .download-buttons {
        flex-direction: column;
        align-items: stretch;
    }

    .download-btn {
        justify-content: center;
    }

    .download-meta {
        gap: 24px;
    }
}

@media (max-width: 480px) {
    .hero-actions {
        flex-direction: column;
    }

    .btn {
        width: 100%;
    }

    .hero-platforms {
        font-size: 13px;
    }

    .platform-tag {
        font-size: 12px;
        padding: 4px 12px;
    }

    .footer-links {
        grid-template-columns: 1fr;
    }
}