:root {
    --primary-color: #924a1a;
    --accent-color: #b25f2d;
    --background-color: #F7FAFC;
    --text-color: #2D3748;
    --transition-speed: 0.3s;
}

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

body {
    font-family: 'Noto Serif SC', serif;
    margin: 0;
    padding: 0;
    background-color: var(--background-color);
    color: var(--text-color);
    line-height: 1.8;
}

header {
    background: linear-gradient(135deg, var(--primary-color), var(--accent-color));
    color: white;
    padding: 4rem 2rem;
    text-align: center;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
}

.logo {
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 1rem;
}

.logo img {
    width: 50px;
    height: 50px;
    margin-right: 1rem;
}

header h1 {
    font-size: 2.5rem;
    font-weight: 600;
    letter-spacing: 2px;
}

header p {
    font-size: 1.2rem;
    opacity: 0.9;
    letter-spacing: 1px;
}

main {
    max-width: 1200px;
    margin: 0 auto;
    padding: 1rem 1rem;
}

section {
    background: white;
    border-radius: 12px;
    padding: 2rem;
    margin-bottom: 2rem;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.05);
    transition: transform var(--transition-speed);
    text-align: center;
}

section:hover {
    transform: translateY(-2px);
}

h2 {
    color: var(--primary-color);
    margin-bottom: 1.5rem;
    font-size: 1.8rem;
    position: relative;
    padding-bottom: 0.8rem;
    font-weight: 600;
    letter-spacing: 1px;
    text-align: center;
}

h2::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 40px;
    height: 2px;
    background: var(--accent-color);
    border-radius: 2px;
    opacity: 0.8;
}

.app-screenshots h2::after {
    width: 60px;
}

ul {
    list-style: none;
    padding-left: 0;
    max-width: 800px;
    margin: 0 auto;
    text-align: left;
}

li {
    margin-bottom: 1.5rem;
    padding-left: 1.5rem;
    position: relative;
    text-align: left;
}

li::before {
    content: '•';
    position: absolute;
    left: 0;
    color: var(--accent-color);
}

.download-button {
    display: inline-block;
    background: var(--primary-color);
    color: white;
    padding: 1rem 2rem;
    text-decoration: none;
    border-radius: 8px;
    font-weight: 500;
    transition: all var(--transition-speed);
    margin-top: 1rem;
}

.download-button2 {
    display: inline-block;
    background: white;
    color: var(--primary-color);
    padding: 1rem 2rem;
    text-decoration: none;
    border-radius: 8px;
    font-weight: 500;
    transition: all var(--transition-speed);
    margin-top: 2rem;
}

.download-button:hover {
    background: var(--accent-color);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
}

footer {
    text-align: center;
    padding: 2rem;
    background: var(--primary-color);
    color: white;
    margin-top: 1rem;
}

footer p {
    opacity: 0.8;
}

/* 图片展示样式优化 */
.app-screenshots {
    background: white;
    padding: 2rem 0;
    margin: 2rem 0;
    border-radius: 12px;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.05);
    overflow: hidden;
}

.app-screenshots h2 {
    padding: 0 2rem;
    margin-bottom: 2rem;
}

.screenshots-grid {
    display: flex;
    overflow-x: auto;
    scroll-snap-type: x mandatory;
    scroll-behavior: smooth;
    -webkit-overflow-scrolling: touch;
    gap: 1.5rem;
    padding: 1rem 2rem;
    width: 100%;
    position: relative;
    cursor: grab;
    user-select: none;
    -webkit-user-select: none;
}

.screenshots-grid:active {
    cursor: grabbing;
}

/* 隐藏滚动条但保持功能 */
.screenshots-grid::-webkit-scrollbar {
    display: none;
}

.screenshots-grid {
    -ms-overflow-style: none;
    scrollbar-width: none;
}

.screenshot-item {
    flex: 0 0 auto;
    width: 280px;
    scroll-snap-align: center;
    scroll-snap-stop: always;
    position: relative;
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    transition: all var(--transition-speed) ease;
    background: #fff;
    padding: 10px;
    -webkit-user-drag: none;
}

.screenshot-item:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 12px rgba(0, 0, 0, 0.15);
}

.screenshot-item img {
    width: 100%;
    height: auto;
    display: block;
    border-radius: 8px;
    object-fit: contain;
    pointer-events: none;
    -webkit-user-drag: none;
}

.scroll-hint {
    text-align: center;
    color: var(--text-color);
    opacity: 0.7;
    font-size: 0.875rem;
    margin: 1rem 0 0;
    display: block;
    padding: 0 2rem;
}

/* 移动端优化 */
@media (max-width: 768px) {
    .app-screenshots {
        padding: 1.5rem 0;
    }

    .app-screenshots h2 {
        padding: 0 1.5rem;
    }

    .screenshots-grid {
        padding: 0.5rem 1.5rem;
        gap: 1rem;
    }

    .screenshot-item {
        width: 220px;
        padding: 8px;
    }
}

@media (max-width: 480px) {
    .app-screenshots {
        padding: 1rem 0;
    }

    .app-screenshots h2 {
        padding: 0 1rem;
    }

    .screenshots-grid {
        padding: 0.5rem 1rem;
        gap: 0.8rem;
    }

    .screenshot-item {
        width: 180px;
        padding: 6px;
    }

    .scroll-hint {
        padding: 0 1rem;
        font-size: 0.8rem;
    }
}

/* 响应式设计 */
@media (max-width: 768px) {
    header {
        padding: 3rem 1rem;
    }

    header h1 {
        font-size: 2rem;
    }

    main {
        padding: 2rem 1rem;
    }

    section {
        padding: 1.5rem;
    }

    h2 {
        font-size: 1.5rem;
    }
}

@media (max-width: 480px) {
    header h1 {
        font-size: 1.8rem;
    }

    header p {
        font-size: 1rem;
    }

    .download-button {
        display: block;
        text-align: center;
        margin: 1rem auto;
    }

    section {
        text-align: center;
        padding: 2rem 1.5rem;
    }

    ul {
        padding: 0 1rem;
    }

    li {
        text-align: left;
    }
}