/* 糖心vlog 品牌官网 外部CSS样式表 */
:root {
    --primary-color: #ff6b81;
    --secondary-color: #f7d794;
    --text-color: #2f3542;
    --bg-color: #ffffff;
    --light-bg: #f1f2f6;
    --white: #ffffff;
    --gray: #747d8c;
    --transition: all 0.3s ease;
}

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

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

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

ul {
    list-style: none;
}

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

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

/* Header & Navigation */
header {
    background: var(--white);
    box-shadow: 0 2px 10px rgba(0,0,0,0.05);
    position: sticky;
    top: 0;
    z-index: 1000;
}

.nav-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 80px;
}

.logo {
    font-size: 24px;
    font-weight: bold;
    color: var(--primary-color);
}

nav ul {
    display: flex;
    gap: 30px;
}

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

/* Search Box */
.search-wrapper {
    padding: 10px 0;
    background: var(--light-bg);
}

.search-box {
    max-width: 600px;
    margin: 0 auto;
    display: flex;
    gap: 10px;
}

.search-box input {
    flex: 1;
    padding: 10px 15px;
    border: 1px solid #ddd;
    border-radius: 5px;
    outline: none;
}

.search-box button {
    padding: 10px 20px;
    background: var(--primary-color);
    color: var(--white);
    border: none;
    border-radius: 5px;
    cursor: pointer;
}

/* Banner */
.banner {
    height: 80vh;
    background: url('../images/banner.jpg') no-repeat center center/cover;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    color: var(--white);
    position: relative;
}

.banner::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0,0,0,0.4);
}

.banner-content {
    position: relative;
    z-index: 1;
}

.banner h1 {
    font-size: 48px;
    margin-bottom: 20px;
}

.banner p {
    font-size: 20px;
    opacity: 0.9;
}

/* Sections */
section {
    padding: 100px 0;
}

.section-title {
    text-align: center;
    margin-bottom: 60px;
}

.section-title h2 {
    font-size: 36px;
    margin-bottom: 10px;
    position: relative;
    display: inline-block;
}

.section-title h2::after {
    content: '';
    width: 50px;
    height: 3px;
    background: var(--primary-color);
    position: absolute;
    bottom: -10px;
    left: 50%;
    transform: translateX(-50%);
}

.section-title p {
    color: var(--gray);
}

/* Video Cards */
.video-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 30px;
}

.video-card {
    background: var(--white);
    border-radius: 10px;
    overflow: hidden;
    box-shadow: 0 5px 15px rgba(0,0,0,0.1);
    transition: var(--transition);
    position: relative;
}

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

.video-thumb {
    position: relative;
    aspect-ratio: 16/9;
    overflow: hidden;
}

.video-thumb img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.play-btn {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 60px;
    height: 60px;
    background: rgba(255, 107, 129, 0.8);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: var(--transition);
}

.video-card:hover .play-btn {
    opacity: 1;
}

.play-btn::after {
    content: '';
    border-style: solid;
    border-width: 10px 0 10px 20px;
    border-color: transparent transparent transparent var(--white);
    margin-left: 5px;
}

.video-info {
    padding: 20px;
}

.video-info h3 {
    font-size: 18px;
    margin-bottom: 10px;
}

.video-meta {
    display: flex;
    justify-content: space-between;
    font-size: 14px;
    color: var(--gray);
}

/* Team */
.team-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 40px;
}

.team-item {
    text-align: center;
}

.team-img {
    width: 150px;
    height: 150px;
    border-radius: 50%;
    margin: 0 auto 20px;
    overflow: hidden;
    border: 5px solid var(--light-bg);
}

/* FAQ */
.faq-container {
    max-width: 800px;
    margin: 0 auto;
}

.faq-item {
    margin-bottom: 20px;
    border-bottom: 1px solid #eee;
    padding-bottom: 10px;
}

.faq-question {
    font-weight: bold;
    cursor: pointer;
    padding: 10px 0;
    display: flex;
    justify-content: space-between;
}

.faq-answer {
    padding: 10px 0;
    color: var(--gray);
    display: none;
}

/* Footer */
footer {
    background: #2f3542;
    color: var(--white);
    padding: 60px 0 20px;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 40px;
    margin-bottom: 40px;
}

.footer-bottom {
    text-align: center;
    padding-top: 20px;
    border-top: 1px solid rgba(255,255,255,0.1);
    font-size: 14px;
    color: #a4b0be;
}

/* Mobile Responsive */
@media (max-width: 768px) {
    .nav-container {
        flex-direction: column;
        height: auto;
        padding: 20px 0;
    }
    nav ul {
        margin-top: 20px;
        gap: 15px;
    }
    .banner h1 {
        font-size: 32px;
    }
}