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

:root {
    --primary-gradient: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    --secondary-gradient: linear-gradient(135deg, #00d4ff 0%, #667eea 100%);
    --accent-color: #00d4ff;
    --primary-dark: #2d1b69;
    --text-primary: #1a1a2e;
    --text-secondary: #5a5a7a;
    --text-light: #8a8aaa;
    --bg-light: #f8f9fc;
    --bg-white: #ffffff;
    --border-color: #e8ecf4;
    --shadow-sm: 0 2px 8px rgba(102, 126, 234, 0.08);
    --shadow-md: 0 8px 24px rgba(102, 126, 234, 0.12);
    --shadow-lg: 0 16px 48px rgba(102, 126, 234, 0.16);
    --shadow-hover: 0 20px 60px rgba(102, 126, 234, 0.24);
    --radius-sm: 8px;
    --radius-md: 16px;
    --radius-lg: 24px;
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

html {
    scroll-behavior: smooth;
    font-size: 16px;
}

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

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

a {
    text-decoration: none;
    color: inherit;
}

ul {
    list-style: none;
}

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

/* ============ 容器 ============ */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
}

/* ============ 头部导航 ============ */
.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
}

.header.scrolled {
    box-shadow: var(--shadow-md);
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
    height: 72px;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

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

.logo-img {
    width: 40px;
    height: 40px;
    border-radius: var(--radius-sm);
    background: var(--primary-gradient);
    display: flex;
    align-items: center;
    justify-content: center;
}

.logo-text {
    font-size: 1.25rem;
    font-weight: 700;
    background: var(--primary-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

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

.nav-link {
    padding: 8px 20px;
    border-radius: var(--radius-sm);
    font-weight: 500;
    color: var(--text-secondary);
    transition: var(--transition);
    position: relative;
}

.nav-link:hover {
    color: var(--primary-dark);
    background: rgba(102, 126, 234, 0.1);
}

.nav-download {
    background: var(--primary-gradient);
    color: white !important;
    padding: 10px 24px !important;
    font-weight: 600;
    box-shadow: 0 4px 12px rgba(102, 126, 234, 0.3);
}

.nav-download:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(102, 126, 234, 0.4);
}

/* 移动端菜单按钮 */
.mobile-menu-btn {
    display: none;
    flex-direction: column;
    gap: 5px;
    padding: 8px;
}

.mobile-menu-btn span {
    width: 24px;
    height: 2px;
    background: var(--text-primary);
    border-radius: 2px;
    transition: var(--transition);
}

.mobile-menu-btn.active span:nth-child(1) {
    transform: rotate(45deg) translate(6px, 6px);
}

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

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

/* 移动端导航 */
.mobile-nav {
    display: none;
    position: fixed;
    top: 72px;
    left: 0;
    right: 0;
    background: white;
    box-shadow: var(--shadow-md);
    padding: 24px;
    transform: translateY(-150%);
    transition: transform 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    z-index: 999;
}

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

.mobile-nav ul {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.mobile-nav-link {
    display: block;
    padding: 14px 20px;
    border-radius: var(--radius-sm);
    font-weight: 500;
    color: var(--text-secondary);
    transition: var(--transition);
}

.mobile-nav-link:hover {
    background: rgba(102, 126, 234, 0.1);
    color: var(--primary-dark);
}

.mobile-download-btn {
    background: var(--primary-gradient);
    color: white !important;
    text-align: center;
    font-weight: 600;
}

/* ============ 首屏区域 ============ */
.hero {
    min-height: 100vh;
    padding: 120px 24px 80px;
    position: relative;
    overflow: hidden;
    background: linear-gradient(180deg, #f8f9fc 0%, #eef1f8 100%);
}

.hero-bg {
    position: absolute;
    inset: 0;
    overflow: hidden;
    pointer-events: none;
}

.bg-shape {
    position: absolute;
    border-radius: 50%;
    opacity: 0.1;
}

.shape1 {
    width: 500px;
    height: 500px;
    background: var(--primary-gradient);
    top: -200px;
    right: -100px;
    animation: float 20s ease-in-out infinite;
}

.shape2 {
    width: 300px;
    height: 300px;
    background: var(--secondary-gradient);
    bottom: -100px;
    left: -50px;
    animation: float 15s ease-in-out infinite reverse;
}

.shape3 {
    width: 200px;
    height: 200px;
    background: linear-gradient(135deg, #ff6b9d 0%, #feca57 100%);
    top: 50%;
    left: 20%;
    animation: float 18s ease-in-out infinite;
}

@keyframes float {
    0%, 100% { transform: translateY(0) rotate(0deg); }
    50% { transform: translateY(-40px) rotate(10deg); }
}

.hero-content {
    max-width: 1200px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
    position: relative;
    z-index: 1;
}

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

.hero-badge {
    display: inline-block;
    padding: 8px 20px;
    background: rgba(102, 126, 234, 0.1);
    color: var(--primary-dark);
    border-radius: 100px;
    font-weight: 600;
    font-size: 0.9rem;
    margin-bottom: 24px;
    border: 1px solid rgba(102, 126, 234, 0.2);
}

.hero-title {
    font-size: clamp(2rem, 5vw, 3.5rem);
    font-weight: 800;
    line-height: 1.2;
    margin-bottom: 20px;
    color: var(--text-primary);
}

.gradient-text {
    background: var(--primary-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-subtitle {
    font-size: clamp(1rem, 2vw, 1.25rem);
    color: var(--text-secondary);
    margin-bottom: 32px;
    line-height: 1.8;
}

.hero-version {
    display: flex;
    gap: 16px;
    margin-bottom: 40px;
    flex-wrap: wrap;
}

.version-tag,
.update-tag {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 10px 18px;
    background: white;
    border-radius: var(--radius-sm);
    box-shadow: var(--shadow-sm);
    font-size: 0.9rem;
    color: var(--text-secondary);
}

.version-icon,
.update-icon {
    font-style: normal;
}

.version-tag strong,
.update-tag strong {
    color: var(--primary-dark);
}

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

/* ============ 按钮 ============ */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 14px 32px;
    border-radius: 100px;
    font-weight: 600;
    font-size: 1rem;
    transition: var(--transition);
    cursor: pointer;
    white-space: nowrap;
}

.btn-lg {
    padding: 18px 40px;
    font-size: 1.1rem;
}

.btn-primary {
    background: var(--primary-gradient);
    color: white;
    box-shadow: 0 8px 24px rgba(102, 126, 234, 0.35);
}

.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 12px 32px rgba(102, 126, 234, 0.45);
}

.btn-ghost {
    background: transparent;
    color: var(--primary-dark);
    border: 2px solid rgba(102, 126, 234, 0.3);
}

.btn-ghost:hover {
    background: rgba(102, 126, 234, 0.1);
    border-color: var(--primary-gradient);
    transform: translateY(-3px);
}

.btn-download {
    background: var(--primary-gradient);
    color: white;
    padding: 20px 48px;
    font-size: 1.1rem;
    border-radius: 100px;
    box-shadow: 0 12px 36px rgba(102, 126, 234, 0.4);
    transition: var(--transition);
    display: inline-flex;
    align-items: center;
    gap: 16px;
}

.btn-download:hover {
    transform: translateY(-4px);
    box-shadow: 0 16px 48px rgba(102, 126, 234, 0.5);
}

.download-icon {
    font-size: 1.5rem;
}

.download-text {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
}

.download-text strong {
    font-size: 1.2rem;
}

.download-text small {
    opacity: 0.9;
    font-size: 0.85rem;
}

.btn-icon {
    font-size: 1.2rem;
}

/* ============ 截图展示 ============ */
.hero-screenshots {
    position: relative;
    animation: fadeInRight 0.8s ease-out;
}

.screenshot-wrapper {
    position: relative;
    width: 100%;
    max-width: 450px;
    height: 500px;
    margin: 0 auto;
}

.screenshot-card {
    position: absolute;
    width: 200px;
    height: 400px;
    border-radius: var(--radius-md);
    overflow: hidden;
    box-shadow: var(--shadow-lg);
    transition: transform 0.6s cubic-bezier(0.4, 0, 0.2, 1);
    cursor: pointer;
}

.screenshot-card:hover {
    transform: translateY(-10px) scale(1.02);
}

.card-1 {
    left: 0;
    top: 20px;
    transform: rotate(-6deg);
    z-index: 3;
    animation: cardFloat1 6s ease-in-out infinite;
}

.card-2 {
    left: 50%;
    top: 0;
    transform: translateX(-50%) rotate(0deg) scale(1.05);
    z-index: 2;
    animation: cardFloat2 6s ease-in-out infinite;
    animation-delay: 1s;
}

.card-3 {
    right: 0;
    top: 30px;
    transform: rotate(6deg);
    z-index: 1;
    animation: cardFloat3 6s ease-in-out infinite;
    animation-delay: 2s;
}

@keyframes cardFloat1 {
    0%, 100% { transform: rotate(-6deg) translateY(0); }
    50% { transform: rotate(-6deg) translateY(-15px); }
}

@keyframes cardFloat2 {
    0%, 100% { transform: translateX(-50%) rotate(0deg) scale(1.05) translateY(0); }
    50% { transform: translateX(-50%) rotate(0deg) scale(1.05) translateY(-20px); }
}

@keyframes cardFloat3 {
    0%, 100% { transform: rotate(6deg) translateY(0); }
    50% { transform: rotate(6deg) translateY(-15px); }
}

.card-glow {
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, rgba(102, 126, 234, 0.3) 0%, rgba(118, 75, 162, 0.3) 100%);
    opacity: 0.8;
    transition: var(--transition);
}

.screenshot-card:hover .card-glow {
    opacity: 0.4;
}

.screenshot-placeholder {
    position: relative;
    z-index: 1;
    width: 100%;
    height: 100%;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    color: white;
}

.placeholder-icon {
    font-size: 4rem;
    margin-bottom: 16px;
    filter: drop-shadow(0 4px 8px rgba(0, 0, 0, 0.2));
}

.placeholder-text {
    font-size: 1.1rem;
    font-weight: 600;
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.2);
}

/* 浮动装饰元素 */
.floating-element {
    position: absolute;
    border-radius: 50%;
    background: var(--primary-gradient);
    opacity: 0.6;
}

.float-1 {
    width: 40px;
    height: 40px;
    top: 10%;
    right: 20%;
    animation: float 4s ease-in-out infinite;
}

.float-2 {
    width: 24px;
    height: 24px;
    bottom: 20%;
    right: 10%;
    background: linear-gradient(135deg, #00d4ff 0%, #667eea 100%);
    animation: float 5s ease-in-out infinite reverse;
}

.float-3 {
    width: 32px;
    height: 32px;
    top: 60%;
    left: 10%;
    background: linear-gradient(135deg, #ff6b9d 0%, #feca57 100%);
    animation: float 4.5s ease-in-out infinite;
}

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

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

/* ============ 区块通用样式 ============ */
.section-header {
    text-align: center;
    margin-bottom: 64px;
}

.section-tag {
    display: inline-block;
    padding: 6px 16px;
    background: rgba(102, 126, 234, 0.1);
    color: var(--primary-dark);
    border-radius: 100px;
    font-weight: 600;
    font-size: 0.85rem;
    letter-spacing: 1px;
    margin-bottom: 16px;
}

.section-title {
    font-size: clamp(1.75rem, 4vw, 2.75rem);
    font-weight: 800;
    margin-bottom: 16px;
    color: var(--text-primary);
}

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

/* ============ 功能特色 ============ */
.features {
    padding: 100px 24px;
    background: white;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 32px;
}

.feature-card {
    padding: 40px 32px;
    background: white;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
    border: 1px solid var(--border-color);
}

.feature-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-lg);
    border-color: rgba(102, 126, 234, 0.3);
}

.feature-icon {
    width: 72px;
    height: 72px;
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2rem;
    margin-bottom: 24px;
    transition: var(--transition);
}

.icon-1 {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
}

.icon-2 {
    background: linear-gradient(135deg, #00d4ff 0%, #667eea 100%);
}

.icon-3 {
    background: linear-gradient(135deg, #feca57 0%, #ff6b9d 100%);
}

.icon-4 {
    background: linear-gradient(135deg, #1dd1a1 0%, #54a0ff 100%);
}

.icon-5 {
    background: linear-gradient(135deg, #5f27cd 0%, #341f97 100%);
}

.icon-6 {
    background: linear-gradient(135deg, #ff6b6b 0%, #ee5a6f 100%);
}

.feature-card:hover .feature-icon {
    transform: scale(1.1) rotate(5deg);
}

.feature-title {
    font-size: 1.35rem;
    font-weight: 700;
    margin-bottom: 12px;
    color: var(--text-primary);
}

.feature-desc {
    color: var(--text-secondary);
    line-height: 1.8;
}

/* ============ 用户评价 ============ */
.reviews {
    padding: 100px 24px;
    background: var(--bg-light);
}

.reviews-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 32px;
}

.review-card {
    padding: 40px 32px;
    background: white;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
}

.review-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-md);
}

.review-stars {
    color: #ffd93d;
    font-size: 1.2rem;
    margin-bottom: 20px;
    letter-spacing: 2px;
}

.review-content {
    font-size: 1.05rem;
    color: var(--text-secondary);
    line-height: 1.8;
    margin-bottom: 32px;
    font-style: italic;
}

.review-author {
    display: flex;
    align-items: center;
    gap: 16px;
}

.author-avatar {
    width: 48px;
    height: 48px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-weight: 700;
    font-size: 1.2rem;
}

.avatar-1 {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
}

.avatar-2 {
    background: linear-gradient(135deg, #00d4ff 0%, #667eea 100%);
}

.avatar-3 {
    background: linear-gradient(135deg, #ff6b9d 0%, #feca57 100%);
}

.author-name {
    display: block;
    font-weight: 600;
    color: var(--text-primary);
}

.author-role {
    display: block;
    font-size: 0.85rem;
    color: var(--text-light);
}

/* ============ FAQ ============ */
.faq {
    padding: 100px 24px;
    background: white;
}

.faq-list {
    max-width: 800px;
    margin: 0 auto;
}

.faq-item {
    margin-bottom: 16px;
    border-radius: var(--radius-md);
    overflow: hidden;
    border: 1px solid var(--border-color);
    transition: var(--transition);
}

.faq-item.active {
    border-color: rgba(102, 126, 234, 0.3);
    box-shadow: var(--shadow-sm);
}

.faq-question {
    width: 100%;
    padding: 24px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    background: white;
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--text-primary);
    text-align: left;
    transition: var(--transition);
}

.faq-question:hover {
    background: rgba(102, 126, 234, 0.05);
}

.faq-icon {
    font-size: 1.5rem;
    color: var(--primary-dark);
    transition: transform 0.3s ease;
    flex-shrink: 0;
    margin-left: 16px;
}

.faq-item.active .faq-icon {
    transform: rotate(45deg);
}

.faq-answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.4s ease, padding 0.4s ease;
}

.faq-item.active .faq-answer {
    max-height: 300px;
}

.faq-answer p {
    padding: 0 24px 24px;
    color: var(--text-secondary);
    line-height: 1.8;
}

/* ============ 下载区域 ============ */
.download-section {
    padding: 100px 24px;
    background: var(--bg-light);
    position: relative;
    overflow: hidden;
}

.download-bg {
    position: absolute;
    inset: 0;
    pointer-events: none;
}

.download-shape {
    position: absolute;
    border-radius: 50%;
    filter: blur(100px);
}

.download-shape-1 {
    width: 400px;
    height: 400px;
    background: rgba(102, 126, 234, 0.2);
    top: -100px;
    right: -100px;
}

.download-shape-2 {
    width: 300px;
    height: 300px;
    background: rgba(118, 75, 162, 0.15);
    bottom: -50px;
    left: -50px;
}

.download-container {
    position: relative;
    z-index: 1;
}

.download-content {
    text-align: center;
    max-width: 700px;
    margin: 0 auto;
}

.download-title {
    font-size: clamp(2rem, 4vw, 2.75rem);
    font-weight: 800;
    margin-bottom: 16px;
    color: var(--text-primary);
}

.download-desc {
    font-size: 1.1rem;
    color: var(--text-secondary);
    margin-bottom: 40px;
}

.download-info {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 32px;
    margin-bottom: 48px;
    flex-wrap: wrap;
}

.info-item {
    display: flex;
    flex-direction: column;
    align-items: center;
}

.info-value {
    font-size: 1.5rem;
    font-weight: 800;
    background: var(--primary-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.info-label {
    font-size: 0.9rem;
    color: var(--text-light);
    margin-top: 4px;
}

.info-divider {
    width: 1px;
    height: 40px;
    background: var(--border-color);
}

.download-notice {
    margin-top: 24px;
    font-size: 0.9rem;
    color: var(--text-light);
}

/* ============ 页脚 ============ */
.footer {
    background: #1a1a2e;
    color: rgba(255, 255, 255, 0.7);
    padding: 64px 24px 32px;
}

.footer-content {
    max-width: 1200px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: 1fr 2fr;
    gap: 64px;
    margin-bottom: 48px;
}

.footer-brand {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.footer-logo {
    width: 48px;
    height: 48px;
    border-radius: var(--radius-sm);
    background: var(--primary-gradient);
}

.footer-brand-name {
    font-size: 1.5rem;
    font-weight: 700;
    color: white;
}

.footer-slogan {
    line-height: 1.6;
}

.footer-links {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 32px;
}

.footer-column {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.footer-column h4 {
    color: white;
    font-size: 1.1rem;
    margin-bottom: 8px;
}

.footer-column a,
.footer-column span {
    transition: var(--transition);
    cursor: pointer;
}

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

.footer-bottom {
    max-width: 1200px;
    margin: 0 auto;
    padding-top: 32px;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    text-align: center;
    font-size: 0.9rem;
}

/* ============ 返回顶部 ============ */
.back-to-top {
    position: fixed;
    bottom: 40px;
    right: 40px;
    width: 48px;
    height: 48px;
    border-radius: 50%;
    background: var(--primary-gradient);
    color: white;
    font-size: 1.2rem;
    font-weight: 700;
    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: var(--shadow-lg);
}

/* ============ 响应式设计 ============ */
@media (max-width: 1024px) {
    .features-grid,
    .reviews-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .screenshot-wrapper {
        height: 450px;
    }

    .screenshot-card {
        width: 180px;
        height: 360px;
    }
}

@media (max-width: 768px) {
    .nav-menu {
        display: none;
    }

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

    .mobile-nav {
        display: block;
    }

    .hero {
        padding: 100px 24px 60px;
    }

    .hero-content {
        grid-template-columns: 1fr;
        gap: 48px;
        text-align: center;
    }

    .hero-text {
        order: 1;
    }

    .hero-screenshots {
        order: 2;
    }

    .hero-version,
    .hero-actions {
        justify-content: center;
    }

    .hero-version {
        flex-direction: column;
        align-items: center;
    }

    .screenshot-wrapper {
        height: 400px;
    }

    .screenshot-card {
        width: 140px;
        height: 280px;
    }

    .features,
    .reviews,
    .faq,
    .download-section {
        padding: 60px 24px;
    }

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

    .section-header {
        margin-bottom: 40px;
    }

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

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

    .download-info {
        gap: 24px;
    }

    .info-divider {
        display: none;
    }

    .back-to-top {
        bottom: 24px;
        right: 24px;
        width: 44px;
        height: 44px;
    }

    .btn-lg {
        padding: 14px 28px;
        font-size: 1rem;
    }

    .btn-download {
        padding: 16px 36px;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 16px;
    }

    .nav-container {
        padding: 0 16px;
    }

    .logo-text {
        font-size: 1.1rem;
    }

    .hero-title {
        font-size: 1.75rem;
    }

    .hero-subtitle {
        font-size: 1rem;
    }

    .screenshot-wrapper {
        height: 350px;
    }

    .screenshot-card {
        width: 110px;
        height: 220px;
    }

    .placeholder-icon {
        font-size: 2.5rem;
    }

    .placeholder-text {
        font-size: 0.9rem;
    }

    .feature-card,
    .review-card {
        padding: 32px 24px;
    }

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

    .btn-download {
        padding: 14px 28px;
        font-size: 1rem;
    }

    .download-icon {
        font-size: 1.2rem;
    }

    .download-text strong {
        font-size: 1rem;
    }
}