:root {
    --vlog-primary: #ff1744;
    --vlog-secondary: #e91e63;
    --vlog-accent: #ff6b35;
    --vlog-gradient: #ff9800;
    --vlog-success: #4caf50;
    --vlog-warning: #ff5722;
    --vlog-dark: #263238;
    --vlog-light: #fafafa;
    --vlog-shadow: 0 8px 32px rgba(255, 23, 68, 0.15);
    --vlog-shadow-deep: 0 12px 48px rgba(233, 30, 99, 0.25);
    --vlog-transition: all 0.4s cubic-bezier(0.23, 1, 0.32, 1);
}

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

body {
    font-family: 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', sans-serif;
    line-height: 1.6;
    color: #333;
    background: linear-gradient(135deg, #fff5f5 0%, #fce4ec 50%, #f3e5f5 100%);
    overflow-x: hidden;
}

/* 动态粒子背景 */
.vlog-particles-bg {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: 1;
    background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100"><circle cx="20" cy="20" r="2" fill="%23ff1744" opacity="0.3"><animate attributeName="cy" values="20;80;20" dur="4s" repeatCount="indefinite"/></circle><circle cx="50" cy="40" r="1.5" fill="%23e91e63" opacity="0.4"><animate attributeName="cy" values="40;10;40" dur="3s" repeatCount="indefinite"/></circle><circle cx="80" cy="60" r="1" fill="%23ff6b35" opacity="0.5"><animate attributeName="cy" values="60;90;60" dur="5s" repeatCount="indefinite"/></circle></svg>') repeat;
    animation: vlogParticlesFloat 20s linear infinite;
}

@keyframes vlogParticlesFloat {
    0% { transform: translateX(0); }
    100% { transform: translateX(-100px); }
}

/* 导航栏 */
.vlog-header-nav {
    position: fixed;
    top: 0;
    width: 100%;
    background: linear-gradient(135deg, rgba(255, 23, 68, 0.95), rgba(233, 30, 99, 0.95));
    backdrop-filter: blur(20px);
    box-shadow: var(--vlog-shadow);
    z-index: 1000;
    transition: var(--vlog-transition);
}

.vlog-nav-container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 1rem 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.vlog-logo-brand {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.vlog-logo-icon {
    width: 48px;
    height: 48px;
    background: linear-gradient(135deg, var(--vlog-accent), var(--vlog-gradient));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    box-shadow: var(--vlog-shadow);
    transition: var(--vlog-transition);
}

.vlog-logo-icon:hover {
    transform: scale(1.1) rotate(10deg);
}

.vlog-logo-brand h1 a {
    font-size: 1.5rem;
    font-weight: 900;
    color: white;
    text-decoration: none;
    transition: var(--vlog-transition);
}

.vlog-logo-brand h1 a:hover {
    text-shadow: 0 0 20px rgba(255, 255, 255, 0.8);
}

.vlog-main-nav {
    display: flex;
    gap: 0.5rem;
    background: rgba(255, 255, 255, 0.1);
    padding: 0.5rem;
    border-radius: 40px;
    backdrop-filter: blur(10px);
}

.vlog-nav-link {
    padding: 0.8rem 1.2rem;
    color: white;
    text-decoration: none;
    font-weight: 600;
    border-radius: 30px;
    transition: var(--vlog-transition);
    position: relative;
    overflow: hidden;
}

.vlog-nav-link::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, var(--vlog-accent), var(--vlog-primary));
    transition: var(--vlog-transition);
    z-index: -1;
}

.vlog-nav-link:hover::before {
    left: 0;
}

.vlog-nav-link:hover {
    transform: translateY(-2px);
    color: white;
    text-shadow: 0 0 15px rgba(255, 255, 255, 0.5);
}

.vlog-cta-btn {
    background: linear-gradient(135deg, var(--vlog-gradient), var(--vlog-accent));
    color: white;
    border: none;
    padding: 1rem 2rem;
    border-radius: 40px;
    font-weight: 700;
    cursor: pointer;
    transition: var(--vlog-transition);
    box-shadow: var(--vlog-shadow);
}

.vlog-cta-btn:hover {
    transform: translateY(-3px) scale(1.05);
    box-shadow: var(--vlog-shadow-deep);
}

/* 主横幅 */
.vlog-hero-section {
    padding: 150px 0 100px;
    text-align: center;
    position: relative;
    z-index: 10;
}

.vlog-hero-content {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 2rem;
}

.vlog-hero-title {
    font-size: 3.5rem;
    font-weight: 900;
    background: linear-gradient(135deg, var(--vlog-primary), var(--vlog-secondary));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    margin-bottom: 1.5rem;
    animation: vlogTitlePulse 3s ease-in-out infinite;
}

@keyframes vlogTitlePulse {
    0%, 100% { transform: scale(1); }
    50% { transform: scale(1.02); }
}

.vlog-hero-subtitle {
    font-size: 1.3rem;
    color: #666;
    margin-bottom: 3rem;
    opacity: 0;
    animation: vlogFadeInUp 1s ease-out 0.5s forwards;
}

@keyframes vlogFadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.vlog-search-box {
    max-width: 500px;
    margin: 0 auto;
    position: relative;
    opacity: 0;
    animation: vlogFadeInUp 1s ease-out 1s forwards;
}

.vlog-search-input {
    width: 100%;
    padding: 1.2rem 1.5rem 1.2rem 2.5rem;
    font-size: 1rem;
    border: 2px solid rgba(255, 23, 68, 0.2);
    border-radius: 50px;
    background: rgba(255, 255, 255, 0.9);
    backdrop-filter: blur(10px);
    transition: var(--vlog-transition);
    outline: none;
}

.vlog-search-input:focus {
    border-color: var(--vlog-primary);
    box-shadow: 0 0 20px rgba(255, 23, 68, 0.3);
    transform: scale(1.02);
}

.vlog-search-btn {
    position: absolute;
    right: 6px;
    top: 6px;
    background: linear-gradient(135deg, var(--vlog-primary), var(--vlog-secondary));
    border: none;
    width: 48px;
    height: 48px;
    border-radius: 50%;
    color: white;
    font-size: 1.2rem;
    cursor: pointer;
    transition: var(--vlog-transition);
}

.vlog-search-btn:hover {
    transform: scale(1.1);
    box-shadow: var(--vlog-shadow);
}

/* 3D展示 */
.vlog-3d-showcase {
    margin: 80px 0;
    perspective: 1000px;
    display: flex;
    justify-content: center;
}

.vlog-3d-symbol {
    position: relative;
    width: 120px;
    height: 120px;
    animation: vlogRotate3D 15s linear infinite;
    transform-style: preserve-3d;
}

.vlog-center-icon {
    position: absolute;
    inset: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 3rem;
    background: linear-gradient(135deg, var(--vlog-primary), var(--vlog-accent));
    border-radius: 50%;
    color: white;
    box-shadow: var(--vlog-shadow-deep);
    z-index: 10;
}

.vlog-orbit-ring {
    position: absolute;
    border: 2px solid;
    border-radius: 50%;
    animation: vlogOrbitFloat 8s ease-in-out infinite;
}

.ring-1 {
    inset: -20px;
    border-color: var(--vlog-primary);
    opacity: 0.6;
    animation-delay: 0s;
}

.ring-2 {
    inset: -40px;
    border-color: var(--vlog-secondary);
    opacity: 0.4;
    animation-delay: -2s;
}

.ring-3 {
    inset: -60px;
    border-color: var(--vlog-accent);
    opacity: 0.2;
    animation-delay: -4s;
}

@keyframes vlogRotate3D {
    from { transform: rotateY(0deg) rotateX(0deg); }
    to { transform: rotateY(360deg) rotateX(180deg); }
}

@keyframes vlogOrbitFloat {
    0%, 100% { transform: scale(1); }
    50% { transform: scale(1.1); }
}

/* 通用容器 */
.vlog-container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 2rem;
}

.vlog-section-title {
    font-size: 2.5rem;
    font-weight: 900;
    text-align: center;
    background: linear-gradient(135deg, var(--vlog-primary), var(--vlog-secondary));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    margin-bottom: 3rem;
    position: relative;
}

.vlog-section-title::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 50%;
    transform: translateX(-50%);
    width: 60px;
    height: 4px;
    background: linear-gradient(90deg, var(--vlog-primary), var(--vlog-accent));
    border-radius: 2px;
}

/* 分类展示 */
.vlog-categories-section {
    padding: 80px 0;
    background: rgba(255, 255, 255, 0.5);
    backdrop-filter: blur(10px);
}

.vlog-categories-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
}

.vlog-category-card {
    background: white;
    border-radius: 20px;
    padding: 2rem;
    text-align: center;
    box-shadow: var(--vlog-shadow);
    border: 2px solid rgba(255, 23, 68, 0.1);
    transition: var(--vlog-transition);
    position: relative;
    overflow: hidden;
}

.vlog-category-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 4px;
    background: linear-gradient(90deg, var(--vlog-primary), var(--vlog-accent));
    transform: scaleX(0);
    transition: var(--vlog-transition);
}

.vlog-category-card:hover::before {
    transform: scaleX(1);
}

.vlog-category-card:hover {
    transform: translateY(-8px) scale(1.02);
    box-shadow: var(--vlog-shadow-deep);
}

.vlog-category-icon {
    font-size: 3rem;
    margin-bottom: 1rem;
    display: inline-block;
    animation: vlogIconBounce 2s ease-in-out infinite;
}

@keyframes vlogIconBounce {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-5px); }
}

.vlog-category-name {
    font-size: 1.3rem;
    font-weight: 700;
    margin-bottom: 1rem;
    color: var(--vlog-dark);
}

.vlog-category-desc {
    color: #666;
    margin-bottom: 1.5rem;
}

.vlog-category-stats {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 0.5rem;
}

.vlog-stat-number {
    font-size: 1.5rem;
    font-weight: 900;
    background: linear-gradient(135deg, var(--vlog-primary), var(--vlog-secondary));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.vlog-stat-label {
    color: #999;
    font-size: 0.9rem;
}

/* 创作者展示 */
.vlog-creators-section {
    padding: 80px 0;
}

.vlog-creators-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
}

.vlog-creator-card {
    background: white;
    border-radius: 16px;
    overflow: hidden;
    box-shadow: var(--vlog-shadow);
    transition: var(--vlog-transition);
    border: 1px solid rgba(255, 23, 68, 0.1);
}

.vlog-creator-card:hover {
    transform: translateY(-6px) scale(1.02);
    box-shadow: var(--vlog-shadow-deep);
}

.vlog-creator-avatar {
    height: 120px;
    background: linear-gradient(135deg, var(--vlog-primary), var(--vlog-accent));
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
}

.vlog-creator-emoji {
    font-size: 3rem;
    animation: vlogCreatorPulse 3s ease-in-out infinite;
}

@keyframes vlogCreatorPulse {
    0%, 100% { transform: scale(1); }
    50% { transform: scale(1.1); }
}

.vlog-creator-badge {
    position: absolute;
    top: 12px;
    right: 12px;
    padding: 0.3rem 0.8rem;
    border-radius: 15px;
    font-size: 0.7rem;
    font-weight: 700;
    color: white;
}

.vlog-creator-badge.hot { background: #ff5722; }
.vlog-creator-badge.new { background: #4caf50; }
.vlog-creator-badge.trending { background: #9c27b0; }
.vlog-creator-badge.featured { background: #ff9800; }

.vlog-creator-info {
    padding: 1.5rem;
}

.vlog-creator-name {
    font-size: 1.1rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
    color: var(--vlog-dark);
}

.vlog-creator-desc {
    color: #666;
    margin-bottom: 1rem;
    font-size: 0.9rem;
}

.vlog-creator-stats {
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 0.85rem;
}

.vlog-creator-followers {
    font-weight: 700;
    color: var(--vlog-primary);
}

.vlog-creator-rating {
    color: #666;
}

/* 数据统计 */
.vlog-stats-section {
    padding: 80px 0;
    background: linear-gradient(135deg, var(--vlog-primary), var(--vlog-secondary));
    color: white;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.vlog-stats-section::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle, rgba(255, 255, 255, 0.1) 0%, transparent 70%);
    animation: vlogStatsGlow 12s ease-in-out infinite;
}

@keyframes vlogStatsGlow {
    0%, 100% { transform: rotate(0deg); }
    50% { transform: rotate(180deg); }
}

.vlog-stats-title {
    font-size: 2.5rem;
    font-weight: 900;
    margin-bottom: 3rem;
    position: relative;
    z-index: 2;
}

.vlog-stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 2rem;
    position: relative;
    z-index: 2;
}

.vlog-stat-item {
    text-align: center;
}

.vlog-stat-item .vlog-stat-number {
    font-size: 2.5rem;
    font-weight: 900;
    margin-bottom: 0.5rem;
    display: block;
    color: white;
}

.vlog-stat-item .vlog-stat-label {
    font-size: 1rem;
    opacity: 0.9;
    color: white;
}

/* 用户反馈 */
.vlog-feedback-section {
    padding: 80px 0;
    background: rgba(255, 255, 255, 0.7);
    backdrop-filter: blur(15px);
}

.vlog-feedback-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 2rem;
}

.vlog-feedback-card {
    background: white;
    border-radius: 20px;
    padding: 2rem;
    box-shadow: var(--vlog-shadow);
    border: 1px solid rgba(255, 23, 68, 0.1);
    transition: var(--vlog-transition);
}

.vlog-feedback-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--vlog-shadow-deep);
}

.vlog-user-header {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin-bottom: 1.5rem;
}

.vlog-user-avatar {
    width: 50px;
    height: 50px;
    background: linear-gradient(135deg, var(--vlog-primary), var(--vlog-accent));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    box-shadow: var(--vlog-shadow);
}

.vlog-user-name {
    font-size: 1rem;
    font-weight: 700;
    margin-bottom: 0.2rem;
    color: var(--vlog-dark);
}

.vlog-user-role {
    font-size: 0.8rem;
    color: #666;
}

.vlog-feedback-text {
    color: #555;
    line-height: 1.7;
    margin-bottom: 1.5rem;
    font-style: italic;
}

.vlog-feedback-rating {
    text-align: center;
    font-size: 1.3rem;
    filter: drop-shadow(0 2px 4px rgba(255, 23, 68, 0.3));
}

/* 最新视频 */
.vlog-latest-section {
    padding: 80px 0;
}

.vlog-videos-list {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.vlog-video-item {
    display: flex;
    align-items: center;
    gap: 1.5rem;
    background: white;
    border-radius: 16px;
    padding: 1.5rem;
    box-shadow: var(--vlog-shadow);
    border: 1px solid rgba(255, 23, 68, 0.1);
    transition: var(--vlog-transition);
}

.vlog-video-item:hover {
    transform: translateX(8px);
    box-shadow: var(--vlog-shadow-deep);
}

.vlog-video-thumb {
    width: 80px;
    height: 60px;
    background: linear-gradient(135deg, var(--vlog-primary), var(--vlog-accent));
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2rem;
    flex-shrink: 0;
}

.vlog-video-content {
    flex: 1;
}

.vlog-video-title {
    font-size: 1.1rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
    color: var(--vlog-dark);
}

.vlog-video-desc {
    color: #666;
    margin-bottom: 0.8rem;
    font-size: 0.9rem;
}

.vlog-video-meta {
    display: flex;
    gap: 1rem;
    align-items: center;
}

.vlog-video-tag {
    background: rgba(255, 23, 68, 0.1);
    color: var(--vlog-primary);
    padding: 0.2rem 0.6rem;
    border-radius: 12px;
    font-size: 0.75rem;
    font-weight: 600;
}

.vlog-video-date {
    color: #999;
    font-size: 0.75rem;
}

.vlog-video-stats {
    text-align: right;
    flex-shrink: 0;
}

.vlog-play-count {
    font-size: 1.2rem;
    font-weight: 700;
    color: var(--vlog-primary);
    display: block;
}

.vlog-play-label {
    font-size: 0.8rem;
    color: #999;
}

/* 页脚 */
.vlog-footer {
    background: var(--vlog-dark);
    color: white;
    padding: 60px 0 30px;
    margin-top: 80px;
}

.vlog-footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    margin-bottom: 2rem;
}

.vlog-footer-brand {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin-bottom: 1rem;
}

.vlog-footer-logo {
    width: 40px;
    height: 40px;
    background: linear-gradient(135deg, var(--vlog-primary), var(--vlog-accent));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.2rem;
}

.vlog-footer-title {
    font-size: 1.3rem;
    font-weight: 900;
    background: linear-gradient(135deg, var(--vlog-primary), var(--vlog-accent));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.vlog-footer-desc {
    color: #ccc;
    line-height: 1.6;
    font-size: 0.9rem;
}

.vlog-footer-heading {
    font-size: 1.1rem;
    font-weight: 700;
    margin-bottom: 1rem;
    color: white;
}

.vlog-footer-links {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 0.8rem;
}

.vlog-footer-links a {
    color: #ccc;
    text-decoration: none;
    font-size: 0.9rem;
    transition: var(--vlog-transition);
    position: relative;
    padding-left: 1rem;
}

.vlog-footer-links a::before {
    content: '';
    position: absolute;
    left: 0;
    top: 50%;
    width: 0;
    height: 2px;
    background: var(--vlog-primary);
    transform: translateY(-50%);
    transition: var(--vlog-transition);
}

.vlog-footer-links a:hover::before {
    width: 0.5rem;
}

.vlog-footer-links a:hover {
    color: white;
    transform: translateX(0.5rem);
}

.vlog-footer-bottom {
    text-align: center;
    padding-top: 2rem;
    border-top: 1px solid #444;
    color: #999;
    font-size: 0.85rem;
}

/* 响应式设计 */
@media (max-width: 768px) {
    .vlog-nav-container {
        flex-direction: column;
        gap: 1rem;
        padding: 1rem;
    }
    
    .vlog-main-nav {
        flex-wrap: wrap;
        justify-content: center;
    }
    
    .vlog-hero-title {
        font-size: 2.5rem;
    }
    
    .vlog-3d-symbol {
        width: 80px;
        height: 80px;
    }
    
    .vlog-center-icon {
        font-size: 2rem;
    }
    
    .vlog-video-item {
        flex-direction: column;
        text-align: center;
    }
    
    .vlog-footer-content {
        grid-template-columns: 1fr;
        text-align: center;
    }
}

/* 页面加载动画 */
.vlog-fade-in {
    opacity: 0;
    transform: translateY(30px);
    transition: var(--vlog-transition);
}

.vlog-fade-in.visible {
    opacity: 1;
    transform: translateY(0);
}