/* 基础重置 - 极简主义风格 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Noto Sans SC', sans-serif;
}

body {
    background-color: #faf9f6; /* 偏暖的米白色背景 */
    color: #222;
    line-height: 1.6;
}

/* 导航栏 - 干净通透 */
.navbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1.5rem 5%;
    background-color: rgba(250, 249, 246, 0.9);
    backdrop-filter: blur(10px);
    position: sticky;
    top: 0;
    z-index: 100;
}

.logo {
    font-size: 1.5rem;
    font-weight: 700;
    letter-spacing: -1px;
}

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

.nav-links a {
    text-decoration: none;
    color: #888;
    font-weight: 400;
    transition: color 0.3s;
    font-size: 0.95rem;
}

.nav-links a.active, .nav-links a:hover {
    color: #0055ff; /* 亮蓝色作为点缀 */
    font-weight: 700;
}

.cart {
    font-size: 0.9rem;
    font-weight: 700;
    padding: 0.5rem 1rem;
    border: 1px solid #ddd;
    border-radius: 20px;
}

#collectionCount {
    color: #0055ff;
}

/* Hero 区域 - 大面积留白 */
.hero {
    height: 60vh;
    display: flex;
    justify-content: center;
    align-items: center;
    text-align: center;
    padding: 0 5%;
}

.hero-content {
    max-width: 800px;
}

.hero h1 {
    font-size: 4rem;
    font-weight: 700;
    letter-spacing: -2px;
    margin-bottom: 1.5rem;
    color: #111;
}

.hero p {
    font-size: 1.2rem;
    color: #555;
    margin-bottom: 2.5rem;
    font-weight: 300;
}

/* 按钮样式 */
.btn {
    padding: 1rem 2.5rem;
    border: none;
    border-radius: 30px;
    cursor: pointer;
    font-weight: 700;
    font-size: 1rem;
    transition: all 0.3s ease;
}

.primary-btn {
    background-color: #0055ff;
    color: #fff;
    box-shadow: 0 10px 20px rgba(0, 85, 255, 0.2);
}

.primary-btn:hover {
    background-color: #0044cc;
    transform: translateY(-2px);
    box-shadow: 0 15px 25px rgba(0, 85, 255, 0.3);
}

/* 唱片墙 (网格系统) */
.gallery-section {
    padding: 5rem 5%;
    background-color: #fff;
}

.grid-container {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 3rem;
}

/* 卡片设计 - 现代留白 */
.card {
    background: #fff;
    transition: transform 0.4s ease;
}

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

.card-image {
    height: 280px;
    background-color: #f0f0f0;
    border-radius: 12px;
    display: flex;
    justify-content: center;
    align-items: center;
    margin-bottom: 1.5rem;
    overflow: hidden;
}

.vinyl-bg { background: linear-gradient(135deg, #e0c3fc 0%, #8ec5fc 100%); }
.cd-bg { background: linear-gradient(135deg, #f5f7fa 0%, #c3cfe2 100%); }

.record-sleeve, .cd-jewel-case {
    font-size: 2rem;
    font-weight: 700;
    color: rgba(255,255,255,0.7);
    letter-spacing: 5px;
}

.card-info h3 {
    font-size: 1.2rem;
    margin-bottom: 0.5rem;
    color: #111;
}

.card-info p {
    color: #888;
    font-size: 0.9rem;
    margin-bottom: 1rem;
}

.add-btn {
    background: transparent;
    border: 1px solid #111;
    padding: 0.5rem 1rem;
    border-radius: 20px;
    cursor: pointer;
    font-size: 0.85rem;
    font-weight: 700;
    transition: all 0.3s;
}

.add-btn:hover {
    background: #111;
    color: #fff;
}

/* 隐藏类 (用于JS过滤) */
.hide {
    display: none;
}

/* 页脚 */
footer {
    padding: 5rem 5%;
    background-color: #111;
    color: #fff;
    text-align: center;
}

.footer-content h2 {
    font-size: 2rem;
    letter-spacing: 2px;
    margin-bottom: 1rem;
}

.footer-content p {
    color: #888;
    margin-bottom: 0.5rem;
}

.domain-link {
    color: #0055ff !important;
    font-family: monospace;
    font-size: 1.1rem;
}

/* 响应式 */
@media (max-width: 768px) {
    .nav-links { display: none; }
    .hero h1 { font-size: 2.5rem; }
}