/* 每日大赛品牌官网样式表 */
:root {
    --primary-color: #0056b3;
    --secondary-color: #ffd700;
    --text-color: #333;
    --bg-color: #f4f7f9;
    --white: #ffffff;
}

body {
    font-family: "Microsoft YaHei", sans-serif;
    line-height: 1.6;
    color: var(--text-color);
    background-color: var(--bg-color);
    margin: 0;
    padding: 0;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* Header */
header {
    background: var(--white);
    box-shadow: 0 2px 5px rgba(0,0,0,0.1);
    padding: 10px 0;
}

.header-top {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo img {
    height: 60px;
}

nav ul {
    list-style: none;
    display: flex;
    padding: 0;
}

nav ul li {
    margin-left: 20px;
}

nav ul li a {
    text-decoration: none;
    color: var(--text-color);
    font-weight: bold;
}

nav ul li a:hover {
    color: var(--primary-color);
}

.search-box {
    margin-top: 10px;
    display: flex;
}

.search-box input {
    flex: 1;
    padding: 8px;
    border: 1px solid #ccc;
    border-radius: 4px 0 0 4px;
}

.search-box button {
    padding: 8px 15px;
    background: var(--primary-color);
    color: var(--white);
    border: none;
    border-radius: 0 4px 4px 0;
    cursor: pointer;
}

/* Banner */
.banner {
    background: url('../images/banner.jpg') no-repeat center center/cover;
    height: 400px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--white);
    text-align: center;
    margin-bottom: 30px;
}

.banner h1 {
    font-size: 3rem;
    text-shadow: 2px 2px 4px rgba(0,0,0,0.5);
}

/* Video Cards */
.video-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 20px;
    margin-bottom: 40px;
}

.video-card {
    background: var(--white);
    border-radius: 8px;
    overflow: hidden;
    box-shadow: 0 3px 10px rgba(0,0,0,0.1);
    position: relative;
    transition: transform 0.3s;
}

.video-card:hover {
    transform: translateY(-5px);
}

.video-thumbnail {
    position: relative;
}

.video-thumbnail img {
    width: 100%;
    display: block;
}

.play-btn {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 50px;
    height: 50px;
    background: rgba(0,0,0,0.6);
    border-radius: 50%;
    display: none;
    align-items: center;
    justify-content: center;
    color: var(--white);
    font-size: 24px;
}

.video-card:hover .play-btn {
    display: flex;
}

.video-info {
    padding: 15px;
}

.video-info h3 {
    margin: 0 0 10px;
    font-size: 1.1rem;
}

/* FAQ & Reviews */
.section-title {
    border-left: 5px solid var(--primary-color);
    padding-left: 15px;
    margin: 40px 0 20px;
}

.faq-item {
    background: var(--white);
    padding: 15px;
    margin-bottom: 10px;
    border-radius: 4px;
}

.faq-item h4 {
    margin: 0 0 5px;
    color: var(--primary-color);
}

.review-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
    gap: 20px;
}

.review-item {
    background: #fff;
    padding: 20px;
    border-radius: 8px;
    border-top: 3px solid var(--secondary-color);
}

/* Footer */
footer {
    background: #333;
    color: #ccc;
    padding: 40px 0 20px;
    margin-top: 50px;
}

.footer-content {
    display: flex;
    justify-content: space-between;
    flex-wrap: wrap;
}

.footer-bottom {
    text-align: center;
    margin-top: 30px;
    padding-top: 20px;
    border-top: 1px solid #444;
}