/* =============================================
   蘑菇视频 - 温暖治愈·自然生活·人文气息
   CSS 主样式文件
   ============================================= */

/* ---------- CSS 变量 ---------- */
:root {
    --primary:      #8B7355;
    --primary-dark: #6B5740;
    --secondary:    #D2B48C;
    --accent:       #C4956A;
    --bg:           #FDFBF7;
    --bg-warm:      #F5F0E8;
    --white:        #FFFFFF;
    --text:         #3D3530;
    --text-light:   #8A7F78;
    --border:       #E8E0D5;
    --shadow:       rgba(139,115,85,0.10);
    --radius:       10px;
    --transition:   0.3s ease;
}

/* ---------- 重置 ---------- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html { scroll-behavior: smooth; }

body {
    font-family: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "WenQuanYi Micro Hei", sans-serif;
    background-color: var(--bg);
    color: var(--text);
    line-height: 1.9;
    font-size: 16px;
}

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

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

ul { list-style: none; }

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

/* ---------- 页头 ---------- */
header {
    background: var(--white);
    box-shadow: 0 2px 16px var(--shadow);
    position: sticky;
    top: 0;
    z-index: 200;
}

.header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 72px;
    gap: 20px;
}

.logo {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 22px;
    font-weight: 700;
    color: var(--primary);
    flex-shrink: 0;
}

.logo img { height: 36px; width: 36px; object-fit: contain; }

nav ul {
    display: flex;
    gap: 28px;
}

nav a {
    font-size: 15px;
    font-weight: 500;
    padding: 4px 0;
    border-bottom: 2px solid transparent;
    transition: border-color var(--transition), color var(--transition);
}

nav a:hover { border-bottom-color: var(--primary); color: var(--primary); }

/* 搜索框 */
.search-box {
    display: flex;
    align-items: center;
    background: var(--bg-warm);
    border: 1px solid var(--border);
    border-radius: 24px;
    overflow: hidden;
    flex-shrink: 0;
}

.search-box input {
    border: none;
    background: transparent;
    padding: 8px 14px;
    font-size: 14px;
    outline: none;
    width: 180px;
    color: var(--text);
}

.search-btn {
    background: none;
    border: none;
    padding: 8px 12px;
    cursor: pointer;
    font-size: 16px;
    color: var(--primary);
}

/* ---------- Banner ---------- */
.banner {
    position: relative;
    height: 520px;
    overflow: hidden;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
}

.banner-bg {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    z-index: 1;
}

.banner-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, rgba(60,40,20,0.55) 0%, rgba(100,70,40,0.35) 100%);
    z-index: 2;
}

.banner-content {
    position: relative;
    z-index: 3;
    color: var(--white);
    max-width: 760px;
    padding: 0 24px;
}

.banner-content h1 {
    font-size: 46px;
    font-weight: 300;
    letter-spacing: 4px;
    margin-bottom: 18px;
    text-shadow: 0 2px 12px rgba(0,0,0,0.3);
}

.banner-content p {
    font-size: 18px;
    font-weight: 300;
    letter-spacing: 1px;
    opacity: 0.92;
}

.banner-btns {
    margin-top: 32px;
    display: flex;
    gap: 16px;
    justify-content: center;
    flex-wrap: wrap;
}

.btn-primary {
    background: var(--accent);
    color: var(--white);
    padding: 12px 32px;
    border-radius: 30px;
    font-size: 15px;
    font-weight: 600;
    transition: background var(--transition), transform var(--transition);
}

.btn-primary:hover { background: var(--primary-dark); transform: translateY(-2px); color: var(--white); }

.btn-outline {
    border: 2px solid rgba(255,255,255,0.8);
    color: var(--white);
    padding: 12px 32px;
    border-radius: 30px;
    font-size: 15px;
    transition: background var(--transition);
}

.btn-outline:hover { background: rgba(255,255,255,0.15); color: var(--white); }

/* ---------- 通用 Section ---------- */
section { padding: 80px 0; }

.section-title {
    text-align: center;
    margin-bottom: 52px;
}

.section-title h2 {
    font-size: 30px;
    font-weight: 400;
    color: var(--primary);
    margin-bottom: 12px;
    letter-spacing: 1px;
}

.section-title p {
    color: var(--text-light);
    font-size: 15px;
}

.section-tag {
    display: inline-block;
    background: var(--bg-warm);
    color: var(--primary);
    font-size: 12px;
    padding: 3px 12px;
    border-radius: 20px;
    margin-bottom: 10px;
    border: 1px solid var(--border);
}

.update-time {
    text-align: center;
    color: var(--text-light);
    font-size: 12px;
    margin-top: 24px;
}

/* ---------- 视频卡片 ---------- */
.video-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
    gap: 28px;
}

.video-card {
    background: var(--white);
    border-radius: var(--radius);
    overflow: hidden;
    box-shadow: 0 4px 20px var(--shadow);
    transition: transform var(--transition), box-shadow var(--transition);
}

.video-card:hover {
    transform: translateY(-6px);
    box-shadow: 0 12px 32px rgba(139,115,85,0.18);
}

.video-thumb {
    position: relative;
    padding-top: 56.25%;
    overflow: hidden;
    cursor: pointer;
    background: var(--bg-warm);
}

.video-thumb img {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.4s ease;
}

.video-card:hover .video-thumb img { transform: scale(1.05); }

.play-btn {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%) scale(0.9);
    width: 54px;
    height: 54px;
    background: rgba(255,255,255,0.92);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: opacity var(--transition), transform var(--transition);
    box-shadow: 0 4px 16px rgba(0,0,0,0.2);
}

.play-btn::after {
    content: '';
    width: 0;
    height: 0;
    border-style: solid;
    border-width: 10px 0 10px 18px;
    border-color: transparent transparent transparent var(--primary);
    margin-left: 4px;
}

.video-thumb:hover .play-btn {
    opacity: 1;
    transform: translate(-50%, -50%) scale(1);
}

.video-tag {
    position: absolute;
    top: 10px;
    left: 10px;
    background: var(--accent);
    color: var(--white);
    font-size: 11px;
    padding: 2px 10px;
    border-radius: 12px;
}

.video-info { padding: 18px 20px 20px; }

.video-info h3 {
    font-size: 16px;
    font-weight: 500;
    margin-bottom: 10px;
    line-height: 1.5;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
    color: var(--text);
}

.video-meta {
    display: flex;
    justify-content: space-between;
    align-items: center;
    color: var(--text-light);
    font-size: 13px;
}

.video-meta span { display: flex; align-items: center; gap: 4px; }

/* ---------- 生活哲学 ---------- */
.philosophy-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 32px;
}

.philosophy-card {
    text-align: center;
    padding: 40px 28px;
    background: var(--white);
    border-radius: var(--radius);
    box-shadow: 0 4px 20px var(--shadow);
    transition: transform var(--transition);
}

.philosophy-card:hover { transform: translateY(-4px); }

.philosophy-icon {
    font-size: 40px;
    margin-bottom: 18px;
}

.philosophy-card h3 {
    font-size: 20px;
    color: var(--primary);
    margin-bottom: 12px;
    font-weight: 500;
}

.philosophy-card p {
    color: var(--text-light);
    font-size: 15px;
    line-height: 1.8;
}

/* ---------- 数据统计 ---------- */
.stats-section { background: var(--bg-warm); }

.stats-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
    text-align: center;
}

.stat-item { padding: 32px 20px; }

.stat-number {
    font-size: 42px;
    font-weight: 700;
    color: var(--primary);
    line-height: 1;
    margin-bottom: 10px;
}

.stat-label {
    font-size: 15px;
    color: var(--text-light);
}

/* ---------- 匠人团队 ---------- */
.team-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
    gap: 28px;
}

.team-card {
    background: var(--white);
    border-radius: var(--radius);
    overflow: hidden;
    box-shadow: 0 4px 20px var(--shadow);
    text-align: center;
    padding: 32px 20px;
}

.team-avatar {
    width: 80px;
    height: 80px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--secondary), var(--accent));
    margin: 0 auto 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 32px;
    color: var(--white);
}

.team-card h3 { font-size: 18px; color: var(--primary); margin-bottom: 6px; }
.team-card .role { font-size: 13px; color: var(--text-light); margin-bottom: 12px; }
.team-card p { font-size: 14px; color: var(--text); line-height: 1.7; }

/* ---------- 媒体报道 ---------- */
.media-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 28px;
}

.media-card {
    background: var(--white);
    border-radius: var(--radius);
    padding: 28px;
    box-shadow: 0 4px 20px var(--shadow);
    border-left: 4px solid var(--accent);
}

.media-source {
    font-size: 12px;
    color: var(--accent);
    font-weight: 600;
    margin-bottom: 10px;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.media-card h3 {
    font-size: 17px;
    color: var(--text);
    margin-bottom: 12px;
    line-height: 1.5;
}

.media-card p { font-size: 14px; color: var(--text-light); line-height: 1.8; }

.media-date { font-size: 12px; color: var(--text-light); margin-top: 14px; }

/* ---------- 用户评论 ---------- */
.review-section { background: var(--bg-warm); }

.review-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
    gap: 24px;
}

.review-card {
    background: var(--white);
    padding: 28px;
    border-radius: var(--radius);
    box-shadow: 0 4px 20px var(--shadow);
    position: relative;
}

.review-card::before {
    content: '\201C';
    position: absolute;
    top: 16px;
    left: 20px;
    font-size: 48px;
    color: var(--secondary);
    line-height: 1;
    font-family: Georgia, serif;
}

.review-stars {
    color: #F5A623;
    font-size: 14px;
    margin-bottom: 12px;
    margin-top: 16px;
}

.review-text {
    font-size: 15px;
    line-height: 1.8;
    color: var(--text);
    margin-bottom: 20px;
}

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

.review-avatar {
    width: 42px;
    height: 42px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--secondary), var(--accent));
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 18px;
    color: var(--white);
    flex-shrink: 0;
}

.review-author-info strong { font-size: 15px; display: block; color: var(--text); }
.review-author-info span { font-size: 12px; color: var(--text-light); }

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

.faq-item {
    border-bottom: 1px solid var(--border);
    padding: 20px 0;
}

.faq-q {
    font-size: 17px;
    font-weight: 500;
    color: var(--primary);
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 12px;
}

.faq-q::after {
    content: '+';
    font-size: 22px;
    color: var(--secondary);
    flex-shrink: 0;
    transition: transform var(--transition);
}

.faq-q.active::after { transform: rotate(45deg); }

.faq-a {
    font-size: 15px;
    color: var(--text);
    line-height: 1.9;
    padding-top: 12px;
    display: none;
}

/* ---------- 加入我们 ---------- */
.join-section {
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
    color: var(--white);
    text-align: center;
    padding: 80px 0;
}

.join-section h2 { font-size: 32px; font-weight: 300; margin-bottom: 16px; letter-spacing: 2px; }
.join-section p { font-size: 16px; opacity: 0.88; margin-bottom: 32px; }

.join-btn {
    display: inline-block;
    background: var(--white);
    color: var(--primary);
    padding: 14px 40px;
    border-radius: 30px;
    font-size: 16px;
    font-weight: 600;
    transition: transform var(--transition), box-shadow var(--transition);
}

.join-btn:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 24px rgba(0,0,0,0.2);
    color: var(--primary);
}

/* ---------- 页脚 ---------- */
footer {
    background: var(--white);
    padding: 60px 0 24px;
    border-top: 1px solid var(--border);
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: 40px;
    margin-bottom: 40px;
}

.footer-logo {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 20px;
    font-weight: 700;
    color: var(--primary);
    margin-bottom: 16px;
}

.footer-logo img { height: 32px; width: 32px; object-fit: contain; }

.footer-desc { font-size: 14px; color: var(--text-light); line-height: 1.8; }

.footer-col h4 {
    font-size: 16px;
    color: var(--primary);
    margin-bottom: 16px;
    font-weight: 600;
}

.footer-col li { margin-bottom: 8px; font-size: 14px; color: var(--text-light); }
.footer-col a { color: var(--text-light); }
.footer-col a:hover { color: var(--primary); }

.footer-bottom {
    text-align: center;
    padding-top: 24px;
    border-top: 1px solid var(--border);
    color: var(--text-light);
    font-size: 13px;
}

/* ---------- 面包屑 ---------- */
.breadcrumb {
    padding: 14px 0;
    font-size: 13px;
    color: var(--text-light);
}

.breadcrumb a { color: var(--primary); }
.breadcrumb span { margin: 0 6px; }

/* ---------- 响应式 ---------- */
@media (max-width: 1024px) {
    .footer-grid { grid-template-columns: 1fr 1fr; }
    .stats-grid { grid-template-columns: repeat(2, 1fr); }
    .philosophy-grid { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 768px) {
    .header-inner { flex-wrap: wrap; height: auto; padding: 12px 0; gap: 12px; }
    nav ul { gap: 16px; flex-wrap: wrap; justify-content: center; }
    .search-box input { width: 140px; }
    .banner { height: 380px; }
    .banner-content h1 { font-size: 30px; }
    .banner-content p { font-size: 15px; }
    section { padding: 56px 0; }
    .section-title h2 { font-size: 24px; }
    .footer-grid { grid-template-columns: 1fr 1fr; gap: 24px; }
    .philosophy-grid { grid-template-columns: 1fr; }
    .stats-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 480px) {
    .footer-grid { grid-template-columns: 1fr; }
    .stats-grid { grid-template-columns: 1fr 1fr; }
    .banner-btns { flex-direction: column; align-items: center; }
}