/* 重置样式 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
    background: linear-gradient(135deg, #1a1a2e 0%, #16213e 100%);
    color: #ffffff;
    line-height: 1.6;
    overflow-x: hidden;
}

/* 顶部导航栏 */
.header {
    position: fixed;
    top: 0;
    width: 100%;
    background: rgba(26, 26, 46, 0.95);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    z-index: 1000;
    padding: 0;
    transition: all 0.3s ease;
}

.nav-container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 12px 20px;
    max-width: 1400px;
    margin: 0 auto;
    gap: 40px;
}

.nav-left {
    display: flex;
    align-items: center;
    gap: 15px;
}

.logo {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 24px;
    font-weight: 700;
    color: #00d4aa;
}

.logo img {
    width: 32px;
    height: 32px;
    border-radius: 6px;
}

/* 主导航 */
.main-nav {
    display: flex;
    align-items: center;
    gap: 25px;
    flex: 1;
    justify-content: center;
}

.nav-link {
    color: rgba(255, 255, 255, 0.8);
    text-decoration: none;
    font-size: 15px;
    font-weight: 500;
    padding: 10px 15px;
    border-radius: 8px;
    transition: all 0.3s ease;
    position: relative;
}

.nav-link:hover {
    color: #ffffff;
    background: rgba(255, 255, 255, 0.1);
}

.nav-link.active {
    color: #00d4aa;
    background: rgba(0, 212, 170, 0.1);
}

.nav-link.active::after {
    content: '';
    position: absolute;
    bottom: -15px;
    left: 50%;
    transform: translateX(-50%);
    width: 30px;
    height: 3px;
    background: #00d4aa;
    border-radius: 2px;
}

.nav-right {
    display: flex;
    align-items: center;
    gap: 15px;
}

.btn-register {
    padding: 10px 20px;
    border: none;
    border-radius: 20px;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.3s ease;
    font-size: 14px;
    text-decoration: none;
    display: inline-block;
    text-align: center;
    background: #00d4aa;
    color: #ffffff;
}

.btn-register:hover {
    background: #00b894;
    transform: translateY(-1px);
}

/* 移动端菜单切换 */
.mobile-menu-toggle {
    display: none;
    background: none;
    border: none;
    color: #ffffff;
    font-size: 18px;
    cursor: pointer;
    padding: 8px;
    border-radius: 6px;
    transition: background-color 0.3s ease;
}

.mobile-menu-toggle:hover {
    background: rgba(255, 255, 255, 0.1);
}

/* 移动端导航 */
.mobile-nav {
    display: none;
    background: rgba(26, 26, 46, 0.98);
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    padding: 20px 0;
}

.mobile-nav-link {
    display: block;
    color: rgba(255, 255, 255, 0.8);
    text-decoration: none;
    padding: 15px 30px;
    font-size: 16px;
    font-weight: 500;
    transition: all 0.3s ease;
    border-left: 3px solid transparent;
}

.mobile-nav-link:hover {
    color: #ffffff;
    background: rgba(255, 255, 255, 0.05);
}

.mobile-nav-link.active {
    color: #00d4aa;
    background: rgba(0, 212, 170, 0.1);
    border-left-color: #00d4aa;
}

/* 主要内容区域 */
.main-content {
    margin-top: 70px;
    padding: 0;
    min-height: calc(100vh - 70px);
}

/* 通用样式 */
.section-header {
    text-align: center;
    margin-bottom: 60px;
}

.section-title {
    font-size: 42px;
    font-weight: 700;
    margin-bottom: 15px;
    background: linear-gradient(135deg, #00d4aa, #74b9ff);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.section-subtitle {
    font-size: 18px;
    color: rgba(255, 255, 255, 0.7);
    max-width: 600px;
    margin: 0 auto;
    line-height: 1.6;
}

/* 英雄区域 */
.hero-section {
    position: relative;
    padding: 120px 40px 80px;
    margin-bottom: 0;
    overflow: hidden;
    background: linear-gradient(135deg, rgba(0, 212, 170, 0.1) 0%, rgba(22, 33, 62, 0.3) 100%);
}

.hero-background {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 1;
}

.hero-particles {
    position: absolute;
    width: 100%;
    height: 100%;
    background: radial-gradient(circle at 20% 80%, rgba(0, 212, 170, 0.1) 0%, transparent 50%),
                radial-gradient(circle at 80% 20%, rgba(116, 185, 255, 0.1) 0%, transparent 50%);
}

.hero-content {
    position: relative;
    z-index: 2;
    max-width: 1400px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 80px;
    align-items: center;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: rgba(0, 212, 170, 0.1);
    color: #00d4aa;
    padding: 8px 16px;
    border-radius: 25px;
    font-size: 14px;
    font-weight: 500;
    margin-bottom: 25px;
    border: 1px solid rgba(0, 212, 170, 0.3);
}

.hero-title {
    font-size: 56px;
    font-weight: 800;
    line-height: 1.2;
    margin-bottom: 25px;
    color: #ffffff;
}

.gradient-text {
    background: linear-gradient(135deg, #00d4aa, #74b9ff);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-description {
    font-size: 18px;
    color: rgba(255, 255, 255, 0.8);
    line-height: 1.7;
    margin-bottom: 35px;
    max-width: 500px;
}

.hero-features {
    display: flex;
    gap: 30px;
    margin-bottom: 40px;
}

.hero-feature {
    display: flex;
    align-items: center;
    gap: 8px;
    color: rgba(255, 255, 255, 0.9);
    font-size: 14px;
    font-weight: 500;
}

.hero-feature i {
    color: #00d4aa;
    font-size: 16px;
}

.hero-actions {
    display: flex;
    gap: 20px;
}

.btn-hero-primary, .btn-hero-secondary {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 16px 32px;
    border-radius: 30px;
    font-weight: 600;
    font-size: 16px;
    text-decoration: none;
    transition: all 0.3s ease;
    border: none;
    cursor: pointer;
}

.btn-hero-primary {
    background: linear-gradient(135deg, #00d4aa, #00b894);
    color: #ffffff;
    box-shadow: 0 8px 25px rgba(0, 212, 170, 0.3);
}

.btn-hero-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 12px 35px rgba(0, 212, 170, 0.4);
}

.btn-hero-secondary {
    background: transparent;
    color: #ffffff;
    border: 2px solid rgba(255, 255, 255, 0.3);
}

.btn-hero-secondary:hover {
    background: rgba(255, 255, 255, 0.1);
    border-color: rgba(255, 255, 255, 0.5);
}

.hero-stats-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 25px;
}

.hero-stat {
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 20px;
    padding: 25px;
    display: flex;
    align-items: center;
    gap: 15px;
    transition: all 0.3s ease;
}

.hero-stat:hover {
    background: rgba(255, 255, 255, 0.08);
    transform: translateY(-2px);
}

.stat-icon {
    width: 50px;
    height: 50px;
    background: linear-gradient(135deg, #00d4aa, #74b9ff);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 20px;
    color: #ffffff;
}

.stat-number {
    font-size: 24px;
    font-weight: 700;
    color: #00d4aa;
    line-height: 1;
}

.stat-label {
    font-size: 12px;
    color: rgba(255, 255, 255, 0.7);
    margin-top: 2px;
}

/* 作品展示区域 */
.showcase-section {
    padding: 80px 40px;
    background: rgba(255, 255, 255, 0.02);
}

.showcase-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr;
    gap: 30px;
    max-width: 1400px;
    margin: 0 auto 50px;
}

.showcase-item {
    background: rgba(255, 255, 255, 0.05);
    border-radius: 20px;
    overflow: hidden;
    transition: all 0.3s ease;
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.showcase-item:hover {
    transform: translateY(-5px);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.3);
    border-color: rgba(0, 212, 170, 0.3);
}

.showcase-item.featured {
    grid-row: span 2;
}

.showcase-thumbnail {
    position: relative;
    height: 200px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    overflow: hidden;
}

.showcase-item.featured .showcase-thumbnail {
    height: 300px;
}

.thumbnail-overlay {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 60px;
    height: 60px;
    background: rgba(0, 0, 0, 0.7);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 20px;
    color: #ffffff;
    opacity: 0;
    transition: opacity 0.3s ease;
}

.showcase-item:hover .thumbnail-overlay {
    opacity: 1;
}

.showcase-badge {
    position: absolute;
    top: 15px;
    left: 15px;
    background: linear-gradient(135deg, #00d4aa, #74b9ff);
    color: #ffffff;
    padding: 6px 12px;
    border-radius: 15px;
    font-size: 12px;
    font-weight: 600;
}

.showcase-stats {
    position: absolute;
    top: 15px;
    right: 15px;
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.showcase-stats span {
    background: rgba(0, 0, 0, 0.7);
    color: #ffffff;
    padding: 4px 8px;
    border-radius: 10px;
    font-size: 11px;
    display: flex;
    align-items: center;
    gap: 4px;
}

.showcase-info {
    padding: 25px;
}

.showcase-info h3 {
    font-size: 18px;
    font-weight: 600;
    margin-bottom: 10px;
    color: #ffffff;
}

.showcase-info p {
    color: rgba(255, 255, 255, 0.7);
    font-size: 14px;
    line-height: 1.5;
    margin-bottom: 15px;
}

.showcase-meta {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.creator {
    display: flex;
    align-items: center;
    gap: 8px;
}

.creator-avatar {
    width: 24px;
    height: 24px;
    border-radius: 50%;
    background: linear-gradient(135deg, #00d4aa, #74b9ff);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 12px;
}

.creator span {
    font-size: 12px;
    color: rgba(255, 255, 255, 0.8);
}

.showcase-tags {
    display: flex;
    gap: 6px;
}

.tag {
    background: rgba(0, 212, 170, 0.2);
    color: #00d4aa;
    padding: 4px 8px;
    border-radius: 8px;
    font-size: 10px;
    font-weight: 500;
}

.showcase-actions {
    text-align: center;
    max-width: 1400px;
    margin: 0 auto;
}

.btn-showcase {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 15px 30px;
    background: transparent;
    color: #00d4aa;
    border: 2px solid #00d4aa;
    border-radius: 25px;
    text-decoration: none;
    font-weight: 600;
    transition: all 0.3s ease;
}

.btn-showcase:hover {
    background: #00d4aa;
    color: #ffffff;
    transform: translateY(-2px);
}

/* 关于我们区域 */
.about-section {
    padding: 80px 40px;
}

.about-container {
    max-width: 1400px;
    margin: 0 auto;
}

.about-hero {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 80px;
    align-items: center;
}

.about-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: rgba(0, 212, 170, 0.1);
    color: #00d4aa;
    padding: 8px 16px;
    border-radius: 25px;
    font-size: 14px;
    font-weight: 500;
    margin-bottom: 25px;
    border: 1px solid rgba(0, 212, 170, 0.3);
}

.about-title {
    font-size: 42px;
    font-weight: 700;
    margin-bottom: 25px;
    background: linear-gradient(135deg, #00d4aa, #74b9ff);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    line-height: 1.2;
}

.about-description {
    font-size: 16px;
    line-height: 1.8;
    color: rgba(255, 255, 255, 0.8);
    margin-bottom: 40px;
}

.about-mission {
    display: flex;
    flex-direction: column;
    gap: 25px;
}

.mission-item {
    display: flex;
    align-items: flex-start;
    gap: 20px;
    padding: 25px;
    background: rgba(255, 255, 255, 0.05);
    border-radius: 15px;
    border: 1px solid rgba(255, 255, 255, 0.1);
    transition: all 0.3s ease;
}

.mission-item:hover {
    background: rgba(255, 255, 255, 0.08);
    transform: translateX(5px);
}

.mission-icon {
    width: 50px;
    height: 50px;
    background: linear-gradient(135deg, #00d4aa, #74b9ff);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 20px;
    color: #ffffff;
    flex-shrink: 0;
}

.mission-content h4 {
    font-size: 18px;
    font-weight: 600;
    margin-bottom: 8px;
    color: #ffffff;
}

.mission-content p {
    color: rgba(255, 255, 255, 0.7);
    line-height: 1.6;
}

.visual-container {
    position: relative;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 40px;
}

.achievement-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
    width: 100%;
}

.achievement-card {
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 15px;
    padding: 20px;
    display: flex;
    align-items: center;
    gap: 15px;
    transition: all 0.3s ease;
}

.achievement-card:hover {
    background: rgba(255, 255, 255, 0.08);
    transform: translateY(-2px);
}

.achievement-icon {
    width: 40px;
    height: 40px;
    background: linear-gradient(135deg, #00d4aa, #74b9ff);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 16px;
    color: #ffffff;
}

.achievement-number {
    font-size: 20px;
    font-weight: 700;
    color: #00d4aa;
    line-height: 1;
}

.achievement-label {
    font-size: 12px;
    color: rgba(255, 255, 255, 0.7);
}

.visual-centerpiece {
    position: relative;
    width: 150px;
    height: 150px;
}

.centerpiece-ring {
    position: absolute;
    width: 100%;
    height: 100%;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
}

.ring-segment {
    position: absolute;
    width: 100%;
    height: 100%;
    border: 3px solid transparent;
    border-top-color: #00d4aa;
    border-radius: 50%;
    animation: rotate 3s linear infinite;
}

.ring-segment:nth-child(2) {
    animation-delay: -1s;
    border-top-color: #74b9ff;
    transform: scale(0.8);
}

.ring-segment:nth-child(3) {
    animation-delay: -2s;
    border-top-color: #00d4aa;
    transform: scale(0.6);
}

@keyframes rotate {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

.centerpiece-content {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    text-align: center;
    z-index: 2;
}

.centerpiece-content i {
    font-size: 30px;
    color: #00d4aa;
    margin-bottom: 8px;
    display: block;
}

.centerpiece-content span {
    font-size: 12px;
    color: rgba(255, 255, 255, 0.8);
    font-weight: 600;
}

/* 平台特色区域 */
.features-section {
    padding: 80px 40px;
    background: rgba(255, 255, 255, 0.02);
}

.features-container {
    max-width: 1400px;
    margin: 0 auto;
}

.features-main {
    display: grid;
    grid-template-columns: 1fr 2fr;
    gap: 40px;
    margin-bottom: 60px;
}

.feature-card {
    background: rgba(255, 255, 255, 0.05);
    border-radius: 20px;
    padding: 35px;
    border: 1px solid rgba(255, 255, 255, 0.1);
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

.feature-card:hover {
    transform: translateY(-5px);
    background: rgba(255, 255, 255, 0.08);
    border-color: rgba(0, 212, 170, 0.3);
}

.feature-card.primary {
    background: linear-gradient(135deg, rgba(0, 212, 170, 0.1), rgba(116, 185, 255, 0.1));
    border-color: rgba(0, 212, 170, 0.3);
}

.feature-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: 25px;
}

.feature-icon {
    width: 60px;
    height: 60px;
    background: linear-gradient(135deg, #00d4aa, #74b9ff);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 24px;
    color: #ffffff;
}

.feature-badge {
    background: rgba(0, 212, 170, 0.2);
    color: #00d4aa;
    padding: 6px 12px;
    border-radius: 15px;
    font-size: 12px;
    font-weight: 600;
}

.feature-card h3 {
    font-size: 24px;
    font-weight: 600;
    margin-bottom: 15px;
    color: #ffffff;
}

.feature-card p {
    color: rgba(255, 255, 255, 0.8);
    line-height: 1.7;
    margin-bottom: 25px;
}

.feature-highlights {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.highlight {
    display: flex;
    align-items: center;
    gap: 10px;
    color: rgba(255, 255, 255, 0.9);
    font-size: 14px;
}

.highlight i {
    color: #00d4aa;
    font-size: 16px;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 25px;
}

.feature-stats {
    margin-top: 20px;
    padding-top: 20px;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    display: flex;
    align-items: center;
    gap: 10px;
}

.stat-highlight {
    background: linear-gradient(135deg, #00d4aa, #74b9ff);
    color: #ffffff;
    padding: 4px 8px;
    border-radius: 8px;
    font-size: 14px;
    font-weight: 700;
}

/* 创作者聚光灯区域 */
.creator-spotlight-section {
    padding: 80px 40px;
}

.spotlight-container {
    max-width: 1400px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 50px;
}

.featured-creator {
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 25px;
    padding: 40px;
    display: grid;
    grid-template-columns: auto 1fr;
    gap: 30px;
    align-items: center;
}

.creator-background {
    position: relative;
}

.creator-avatar.large {
    width: 120px;
    height: 120px;
    position: relative;
}

.avatar-ring {
    position: absolute;
    top: -10px;
    left: -10px;
    width: 140px;
    height: 140px;
    border: 3px solid transparent;
    border-top-color: #00d4aa;
    border-radius: 50%;
    animation: rotate 4s linear infinite;
}

.avatar-image {
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    border-radius: 50%;
    border: 4px solid rgba(255, 255, 255, 0.1);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 48px;
}

.creator-badge {
    position: absolute;
    top: -5px;
    right: -5px;
    width: 30px;
    height: 30px;
    background: linear-gradient(135deg, #00d4aa, #74b9ff);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 14px;
    color: #ffffff;
}

.creator-info h3 {
    font-size: 28px;
    font-weight: 700;
    margin-bottom: 5px;
    color: #ffffff;
}

.creator-title {
    font-size: 16px;
    color: #00d4aa;
    margin-bottom: 15px;
    font-weight: 500;
}

.creator-description {
    color: rgba(255, 255, 255, 0.8);
    line-height: 1.6;
    margin-bottom: 25px;
}

.creator-stats {
    display: flex;
    gap: 30px;
    margin-bottom: 25px;
}

.creator-stats .stat {
    text-align: center;
}

.creator-stats .number {
    display: block;
    font-size: 20px;
    font-weight: 700;
    color: #00d4aa;
    line-height: 1;
}

.creator-stats .label {
    font-size: 12px;
    color: rgba(255, 255, 255, 0.7);
    margin-top: 2px;
}

.creator-actions {
    display: flex;
    gap: 15px;
}

.btn-follow, .btn-works {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 12px 20px;
    border-radius: 20px;
    text-decoration: none;
    font-weight: 500;
    font-size: 14px;
    transition: all 0.3s ease;
}

.btn-follow {
    background: linear-gradient(135deg, #00d4aa, #00b894);
    color: #ffffff;
}

.btn-follow:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 20px rgba(0, 212, 170, 0.3);
}

.btn-works {
    background: transparent;
    color: #ffffff;
    border: 1px solid rgba(255, 255, 255, 0.3);
}

.btn-works:hover {
    background: rgba(255, 255, 255, 0.1);
}

.spotlight-grid {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.creator-card {
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 15px;
    padding: 20px;
    display: flex;
    align-items: center;
    gap: 15px;
    transition: all 0.3s ease;
}

.creator-card:hover {
    background: rgba(255, 255, 255, 0.08);
    transform: translateX(5px);
}

.creator-card .creator-avatar {
    width: 50px;
    height: 50px;
    border-radius: 50%;
}

.creator-card .avatar-image {
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 24px;
}

.creator-details h4 {
    font-size: 16px;
    font-weight: 600;
    margin-bottom: 4px;
    color: #ffffff;
}

.creator-details p {
    font-size: 12px;
    color: rgba(255, 255, 255, 0.7);
    margin-bottom: 8px;
}

.creator-metrics {
    display: flex;
    gap: 15px;
    font-size: 11px;
    color: rgba(255, 255, 255, 0.6);
}

.creator-metrics span {
    display: flex;
    align-items: center;
    gap: 4px;
}

/* 新手指南区域 */
.guide-section {
    padding: 80px 40px;
    background: rgba(255, 255, 255, 0.02);
}

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

.guide-timeline {
    position: relative;
}

.timeline-line {
    position: absolute;
    left: 50%;
    top: 0;
    bottom: 0;
    width: 2px;
    background: linear-gradient(to bottom, #00d4aa, #74b9ff);
    transform: translateX(-50%);
    z-index: 1;
}

.guide-step {
    display: grid;
    grid-template-columns: 1fr auto 1fr;
    gap: 40px;
    align-items: center;
    margin-bottom: 80px;
    position: relative;
}

.guide-step:nth-child(even) .step-content {
    grid-column: 1;
    text-align: right;
}

.guide-step:nth-child(even) .step-indicator {
    grid-column: 2;
}

.guide-step:nth-child(odd) .step-content {
    grid-column: 3;
    text-align: left;
}

.guide-step:nth-child(odd) .step-indicator {
    grid-column: 2;
}

.step-indicator {
    position: relative;
    z-index: 2;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 10px;
}

.step-number {
    width: 60px;
    height: 60px;
    background: linear-gradient(135deg, #00d4aa, #74b9ff);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 24px;
    font-weight: 700;
    color: #ffffff;
    border: 4px solid rgba(26, 26, 46, 1);
}

.step-icon {
    width: 40px;
    height: 40px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 16px;
    color: #00d4aa;
}

.step-content {
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 20px;
    padding: 30px;
    max-width: 400px;
}

.step-content h3 {
    font-size: 24px;
    font-weight: 600;
    margin-bottom: 15px;
    color: #ffffff;
}

.step-content p {
    color: rgba(255, 255, 255, 0.8);
    line-height: 1.6;
    margin-bottom: 20px;
}

.step-features {
    display: flex;
    flex-direction: column;
    gap: 8px;
    margin-bottom: 20px;
}

.step-features span {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 14px;
    color: rgba(255, 255, 255, 0.9);
}

.step-features i {
    color: #00d4aa;
    font-size: 12px;
}

.step-action {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 12px 20px;
    background: linear-gradient(135deg, #00d4aa, #00b894);
    color: #ffffff;
    text-decoration: none;
    border-radius: 20px;
    font-weight: 500;
    font-size: 14px;
    transition: all 0.3s ease;
}

.step-action:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 20px rgba(0, 212, 170, 0.3);
}

/* 用户评价区域 */
.testimonials-section {
    padding: 80px 40px;
}

.testimonials-container {
    max-width: 1400px;
    margin: 0 auto;
}

.testimonials-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr;
    gap: 30px;
}

.testimonial-card {
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 20px;
    padding: 30px;
    transition: all 0.3s ease;
}

.testimonial-card:hover {
    background: rgba(255, 255, 255, 0.08);
    transform: translateY(-5px);
}

.testimonial-card.featured {
    grid-row: span 2;
    padding: 40px;
}

.testimonial-header {
    display: flex;
    align-items: center;
    gap: 15px;
    margin-bottom: 20px;
}

.user-avatar {
    position: relative;
    width: 50px;
    height: 50px;
}

.user-avatar .avatar-image {
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 24px;
}

.verified-badge {
    position: absolute;
    bottom: -2px;
    right: -2px;
    width: 18px;
    height: 18px;
    background: #00d4aa;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 10px;
    color: #ffffff;
}

.user-info h4 {
    font-size: 16px;
    font-weight: 600;
    margin-bottom: 4px;
    color: #ffffff;
}

.user-info p {
    font-size: 12px;
    color: rgba(255, 255, 255, 0.7);
    margin-bottom: 8px;
}

.rating {
    display: flex;
    gap: 2px;
}

.rating i {
    color: #ffd700;
    font-size: 12px;
}

.testimonial-content p {
    color: rgba(255, 255, 255, 0.8);
    line-height: 1.6;
    font-style: italic;
    margin-bottom: 20px;
}

.testimonial-stats {
    display: flex;
    gap: 20px;
    font-size: 12px;
    color: rgba(255, 255, 255, 0.6);
}

.testimonial-stats span {
    display: flex;
    align-items: center;
    gap: 4px;
}

/* 常见问题区域 */
.faq-section {
    padding: 80px 40px;
    background: rgba(255, 255, 255, 0.02);
}

.faq-container {
    max-width: 1000px;
    margin: 0 auto;
}

.faq-categories {
    display: flex;
    justify-content: center;
    gap: 15px;
    margin-bottom: 50px;
    flex-wrap: wrap;
}

.faq-category {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 12px 20px;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 25px;
    color: rgba(255, 255, 255, 0.8);
    cursor: pointer;
    transition: all 0.3s ease;
    font-weight: 500;
}

.faq-category:hover {
    background: rgba(255, 255, 255, 0.1);
    color: #ffffff;
}

.faq-category.active {
    background: linear-gradient(135deg, #00d4aa, #74b9ff);
    color: #ffffff;
    border-color: transparent;
}

.faq-content {
    position: relative;
}

.faq-group {
    display: none;
}

.faq-group.active {
    display: block;
}

.faq-item {
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 15px;
    margin-bottom: 15px;
    overflow: hidden;
    transition: all 0.3s ease;
}

.faq-item:hover {
    background: rgba(255, 255, 255, 0.08);
    border-color: rgba(0, 212, 170, 0.3);
}

.faq-question {
    padding: 25px 30px;
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
    transition: all 0.3s ease;
    user-select: none;
}

.faq-question:hover {
    background: rgba(255, 255, 255, 0.05);
}

.faq-question h3 {
    font-size: 18px;
    font-weight: 600;
    color: #ffffff;
    margin: 0;
    flex: 1;
}

.faq-question i {
    font-size: 16px;
    color: #00d4aa;
    transition: transform 0.3s ease;
    margin-left: 20px;
}

.faq-item.active .faq-question i {
    transform: rotate(180deg);
}

.faq-answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.5s ease;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.faq-item.active .faq-answer {
    max-height: 500px;
}

.faq-item.active {
    background: rgba(0, 212, 170, 0.05);
    border-color: rgba(0, 212, 170, 0.3);
}

.faq-answer p {
    padding: 25px 30px;
    margin: 0;
    color: rgba(255, 255, 255, 0.8);
    line-height: 1.7;
    font-size: 15px;
}

.faq-links {
    display: flex;
    gap: 15px;
    margin-top: 15px;
}

.faq-links a {
    color: #00d4aa;
    text-decoration: none;
    font-size: 14px;
    font-weight: 500;
    transition: color 0.3s ease;
}

.faq-links a:hover {
    color: #74b9ff;
}

/* 订阅通讯区域 */
.newsletter-section {
    padding: 80px 40px;
    background: linear-gradient(135deg, rgba(0, 212, 170, 0.1), rgba(116, 185, 255, 0.1));
}

.newsletter-container {
    max-width: 1200px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 60px;
    align-items: center;
}

.newsletter-text h2 {
    font-size: 36px;
    font-weight: 700;
    margin-bottom: 20px;
    background: linear-gradient(135deg, #00d4aa, #74b9ff);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.newsletter-text p {
    font-size: 16px;
    color: rgba(255, 255, 255, 0.8);
    line-height: 1.6;
    margin-bottom: 30px;
}

.newsletter-benefits {
    display: flex;
    flex-direction: column;
    gap: 15px;
    margin-bottom: 40px;
}

.benefit-item {
    display: flex;
    align-items: center;
    gap: 12px;
    color: rgba(255, 255, 255, 0.9);
    font-weight: 500;
}

.benefit-item i {
    color: #00d4aa;
    font-size: 16px;
}

.newsletter-form {
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 20px;
    padding: 30px;
}

.form-group {
    display: flex;
    gap: 10px;
    margin-bottom: 20px;
}

.form-group input {
    flex: 1;
    padding: 15px 20px;
    background: rgba(255, 255, 255, 0.1);
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: 25px;
    color: #ffffff;
    font-size: 14px;
    outline: none;
    transition: all 0.3s ease;
}

.form-group input:focus {
    border-color: #00d4aa;
    background: rgba(255, 255, 255, 0.15);
}

.form-group input::placeholder {
    color: rgba(255, 255, 255, 0.6);
}

.btn-subscribe {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 15px 25px;
    background: linear-gradient(135deg, #00d4aa, #00b894);
    color: #ffffff;
    border: none;
    border-radius: 25px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    white-space: nowrap;
}

.btn-subscribe:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 20px rgba(0, 212, 170, 0.3);
}

.checkbox-label {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 14px;
    color: rgba(255, 255, 255, 0.8);
    cursor: pointer;
    margin-bottom: 15px;
}

.checkbox-label input {
    display: none;
}

.checkmark {
    width: 18px;
    height: 18px;
    background: rgba(255, 255, 255, 0.1);
    border: 1px solid rgba(255, 255, 255, 0.3);
    border-radius: 4px;
    position: relative;
    transition: all 0.3s ease;
}

.checkbox-label input:checked + .checkmark {
    background: #00d4aa;
    border-color: #00d4aa;
}

.checkbox-label input:checked + .checkmark::after {
    content: '✓';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    color: #ffffff;
    font-size: 12px;
    font-weight: bold;
}

.privacy-note {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 12px;
    color: rgba(255, 255, 255, 0.6);
    margin: 0;
}

.privacy-note i {
    color: #00d4aa;
}

.newsletter-visual {
    display: flex;
    justify-content: center;
    align-items: center;
}

.visual-elements {
    position: relative;
    width: 200px;
    height: 200px;
}

.floating-icon {
    position: absolute;
    width: 60px;
    height: 60px;
    background: rgba(255, 255, 255, 0.1);
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 24px;
    color: #00d4aa;
    animation: float 3s ease-in-out infinite;
}

.floating-icon:nth-child(1) {
    top: 20px;
    left: 50%;
    transform: translateX(-50%);
    animation-delay: 0s;
}

.floating-icon:nth-child(2) {
    bottom: 20px;
    left: 20px;
    animation-delay: -1s;
}

.floating-icon:nth-child(3) {
    bottom: 20px;
    right: 20px;
    animation-delay: -2s;
}

@keyframes float {
    0%, 100% { transform: translateY(0px); }
    50% { transform: translateY(-10px); }
}

/* 页脚 */
.footer {
    background: linear-gradient(135deg, rgba(15, 15, 25, 0.98), rgba(26, 26, 46, 0.95));
    backdrop-filter: blur(15px);
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    margin-top: 80px;
}

.footer-content {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 40px;
}

.footer-main {
    display: grid;
    grid-template-columns: 1fr 2fr;
    gap: 60px;
    padding: 60px 0 40px;
}

.footer-brand {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.footer-logo {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 10px;
}

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

.footer-logo span {
    font-size: 24px;
    font-weight: 700;
    background: linear-gradient(135deg, #00d4aa, #74b9ff);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.footer-description {
    color: rgba(255, 255, 255, 0.7);
    line-height: 1.6;
    font-size: 14px;
    max-width: 300px;
    margin: 0;
}

.footer-links {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 40px;
}

.footer-column h4 {
    color: #ffffff;
    font-size: 16px;
    font-weight: 600;
    margin-bottom: 20px;
    position: relative;
}

.footer-column h4::after {
    content: '';
    position: absolute;
    bottom: -6px;
    left: 0;
    width: 20px;
    height: 2px;
    background: linear-gradient(135deg, #00d4aa, #74b9ff);
    border-radius: 1px;
}

.footer-column ul {
    list-style: none;
    padding: 0;
    margin: 0;
}

.footer-column li {
    margin-bottom: 10px;
}

.footer-column a {
    color: rgba(255, 255, 255, 0.6);
    text-decoration: none;
    font-size: 14px;
    transition: all 0.3s ease;
    display: inline-block;
}

.footer-column a:hover {
    color: #00d4aa;
    transform: translateX(3px);
}

.footer-bottom {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 30px 0;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.footer-copyright p {
    color: rgba(255, 255, 255, 0.5);
    font-size: 14px;
    margin: 0;
}

.footer-social {
    display: flex;
    gap: 15px;
}

.social-link {
    width: 36px;
    height: 36px;
    background: rgba(255, 255, 255, 0.1);
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: rgba(255, 255, 255, 0.7);
    text-decoration: none;
    transition: all 0.3s ease;
    font-size: 16px;
}

.social-link:hover {
    background: rgba(0, 212, 170, 0.2);
    border-color: rgba(0, 212, 170, 0.5);
    color: #00d4aa;
    transform: translateY(-2px);
}

/* 返回顶部按钮 */
.back-to-top-btn {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 56px;
    height: 56px;
    background: linear-gradient(135deg, #00d4aa, #74b9ff);
    border: none;
    border-radius: 50%;
    color: white;
    font-size: 20px;
    cursor: pointer;
    z-index: 1001;
    box-shadow: 0 8px 25px rgba(0, 212, 170, 0.3);
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transform: translateY(100px);
}

.back-to-top-btn.show {
    opacity: 1;
    transform: translateY(0);
}

.back-to-top-btn:hover {
    transform: translateY(0) scale(1.1);
    box-shadow: 0 12px 35px rgba(0, 212, 170, 0.4);
}

.back-to-top-btn:active {
    transform: translateY(0) scale(0.95);
}

/* 响应式设计 */
@media (max-width: 1200px) {
    .hero-content {
        grid-template-columns: 1fr;
        gap: 50px;
        text-align: center;
    }
    
    .hero-stats-grid {
        grid-template-columns: repeat(4, 1fr);
        gap: 15px;
    }
    
    .about-hero {
        grid-template-columns: 1fr;
        gap: 50px;
        text-align: center;
    }
    
    .features-main {
        grid-template-columns: 1fr;
        gap: 30px;
    }
    
    .features-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .spotlight-container {
        grid-template-columns: 1fr;
        gap: 40px;
    }
    
    .testimonials-grid {
        grid-template-columns: 1fr 1fr;
        gap: 25px;
    }
    
    .newsletter-container {
        grid-template-columns: 1fr;
        gap: 40px;
        text-align: center;
    }
}

@media (max-width: 1024px) {
    .main-nav {
        display: none;
    }
    
    .mobile-menu-toggle {
        display: block;
    }
    
    .mobile-nav.active {
        display: block;
    }
    
    .showcase-grid {
        grid-template-columns: 1fr;
        gap: 25px;
    }
    
    .showcase-item.featured {
        grid-row: span 1;
    }
    
    .guide-step {
        grid-template-columns: 1fr;
        text-align: center;
        gap: 20px;
    }
    
    .guide-step:nth-child(even) .step-content,
    .guide-step:nth-child(odd) .step-content {
        grid-column: 1;
        text-align: center;
    }
    
    .timeline-line {
        display: none;
    }
}

@media (max-width: 768px) {
    .nav-container {
        padding: 12px 15px;
        gap: 20px;
    }
    
    .hero-section {
        padding: 80px 20px 60px;
    }
    
    .hero-title {
        font-size: 42px;
    }
    
    .hero-features {
        flex-direction: column;
        gap: 15px;
    }
    
    .hero-actions {
        flex-direction: column;
        align-items: center;
    }
    
    .hero-stats-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .section-title {
        font-size: 32px;
    }
    
    .about-title {
        font-size: 32px;
    }
    
    .features-grid {
        grid-template-columns: 1fr;
    }
    
    .featured-creator {
        grid-template-columns: 1fr;
        text-align: center;
        gap: 20px;
    }
    
    .creator-stats {
        justify-content: center;
    }
    
    .testimonials-grid {
        grid-template-columns: 1fr;
    }
    
    .faq-categories {
        flex-direction: column;
        align-items: center;
    }
    
    .form-group {
        flex-direction: column;
    }
    
    .footer-content {
        grid-template-columns: repeat(2, 1fr);
        gap: 30px;
    }
}

@media (max-width: 480px) {
    .hero-title {
        font-size: 32px;
    }
    
    .section-title {
        font-size: 28px;
    }
    
    .about-title {
        font-size: 28px;
    }
    
    .newsletter-text h2 {
        font-size: 28px;
    }
    
    .hero-stats-grid {
        grid-template-columns: 1fr;
        gap: 15px;
    }
    
    .achievement-grid {
        grid-template-columns: 1fr;
    }
    
    .footer-content {
        grid-template-columns: 1fr;
    }
    
    .back-to-top-btn {
        bottom: 20px;
        right: 20px;
        width: 50px;
        height: 50px;
        font-size: 18px;
    }
}

/* 动画效果 */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.feature-card, .guide-step, .testimonial-card, .faq-item, .showcase-item {
    animation: fadeInUp 0.6s ease forwards;
}

.feature-card:nth-child(2) { animation-delay: 0.1s; }
.feature-card:nth-child(3) { animation-delay: 0.2s; }
.feature-card:nth-child(4) { animation-delay: 0.3s; }
.feature-card:nth-child(5) { animation-delay: 0.4s; }
.feature-card:nth-child(6) { animation-delay: 0.5s; }

/* 内页样式 */
.page-hero-section {
    position: relative;
    padding: 120px 40px 80px;
    background: linear-gradient(135deg, rgba(0, 212, 170, 0.1) 0%, rgba(22, 33, 62, 0.3) 100%);
    overflow: hidden;
}

.page-hero-background {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 1;
}

.page-hero-content {
    position: relative;
    z-index: 2;
    max-width: 1200px;
    margin: 0 auto;
    text-align: center;
}

.page-hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: rgba(0, 212, 170, 0.1);
    color: #00d4aa;
    padding: 8px 16px;
    border-radius: 25px;
    font-size: 14px;
    font-weight: 500;
    margin-bottom: 25px;
    border: 1px solid rgba(0, 212, 170, 0.3);
}

.page-hero-title {
    font-size: 48px;
    font-weight: 700;
    margin-bottom: 25px;
    background: linear-gradient(135deg, #00d4aa, #74b9ff);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    line-height: 1.2;
}

.page-hero-description {
    font-size: 18px;
    color: rgba(255, 255, 255, 0.8);
    line-height: 1.7;
    margin-bottom: 40px;
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
}

.page-hero-stats {
    display: flex;
    justify-content: center;
    gap: 40px;
    margin-top: 40px;
}

.hero-stat-item {
    text-align: center;
    padding: 20px;
    background: rgba(255, 255, 255, 0.05);
    border-radius: 15px;
    border: 1px solid rgba(255, 255, 255, 0.1);
    min-width: 120px;
}

.hero-stat-item .stat-number {
    font-size: 32px;
    font-weight: 700;
    color: #00d4aa;
    line-height: 1;
    margin-bottom: 5px;
}

.hero-stat-item .stat-label {
    font-size: 14px;
    color: rgba(255, 255, 255, 0.7);
}

.section-container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 80px 40px;
}

/* 使命区域 */
.mission-section {
    background: rgba(255, 255, 255, 0.02);
}

.mission-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr;
    gap: 30px;
    margin-top: 60px;
}

.mission-card {
    background: rgba(255, 255, 255, 0.05);
    border-radius: 20px;
    padding: 35px;
    border: 1px solid rgba(255, 255, 255, 0.1);
    transition: all 0.3s ease;
}

.mission-card:hover {
    transform: translateY(-5px);
    background: rgba(255, 255, 255, 0.08);
    border-color: rgba(0, 212, 170, 0.3);
}

.mission-card.primary {
    grid-row: span 2;
    background: linear-gradient(135deg, rgba(0, 212, 170, 0.1), rgba(116, 185, 255, 0.1));
    border-color: rgba(0, 212, 170, 0.3);
}

.mission-icon {
    width: 60px;
    height: 60px;
    background: linear-gradient(135deg, #00d4aa, #74b9ff);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 24px;
    color: #ffffff;
    margin-bottom: 25px;
}

.mission-card h3 {
    font-size: 24px;
    font-weight: 600;
    margin-bottom: 15px;
    color: #ffffff;
}

.mission-card p {
    color: rgba(255, 255, 255, 0.8);
    line-height: 1.7;
    margin-bottom: 20px;
}

.mission-stats {
    background: rgba(0, 212, 170, 0.2);
    color: #00d4aa;
    padding: 10px 15px;
    border-radius: 20px;
    font-size: 14px;
    font-weight: 600;
    display: inline-block;
}

/* 时间轴区域 */
.timeline-section {
    padding: 80px 40px;
}

.timeline-container {
    position: relative;
    max-width: 1000px;
    margin: 0 auto;
}

.timeline-line {
    position: absolute;
    left: 50%;
    top: 0;
    bottom: 0;
    width: 2px;
    background: linear-gradient(to bottom, #00d4aa, #74b9ff);
    transform: translateX(-50%);
    z-index: 1;
}

.timeline-items {
    position: relative;
    z-index: 2;
}

.timeline-item {
    display: grid;
    grid-template-columns: 1fr auto 1fr;
    gap: 40px;
    align-items: center;
    margin-bottom: 80px;
}

.timeline-item:nth-child(even) .timeline-content {
    grid-column: 1;
    text-align: right;
}

.timeline-item:nth-child(even) .timeline-marker {
    grid-column: 2;
}

.timeline-item:nth-child(odd) .timeline-content {
    grid-column: 3;
    text-align: left;
}

.timeline-item:nth-child(odd) .timeline-marker {
    grid-column: 2;
}

.timeline-marker {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 10px;
}

.marker-dot {
    width: 20px;
    height: 20px;
    background: linear-gradient(135deg, #00d4aa, #74b9ff);
    border-radius: 50%;
    border: 4px solid rgba(26, 26, 46, 1);
}

.marker-year {
    background: rgba(0, 212, 170, 0.1);
    color: #00d4aa;
    padding: 8px 16px;
    border-radius: 20px;
    font-weight: 600;
    font-size: 14px;
    border: 1px solid rgba(0, 212, 170, 0.3);
}

.timeline-content {
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 20px;
    padding: 30px;
    max-width: 400px;
}

.timeline-content h3 {
    font-size: 20px;
    font-weight: 600;
    color: #ffffff;
    margin-bottom: 15px;
}

.timeline-content p {
    color: rgba(255, 255, 255, 0.8);
    line-height: 1.6;
    margin-bottom: 20px;
}

.timeline-achievements {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.timeline-achievements span {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 12px;
    color: rgba(255, 255, 255, 0.9);
}

.timeline-achievements i {
    color: #00d4aa;
    font-size: 14px;
}

/* 价值观区域 */
.values-section {
    background: rgba(255, 255, 255, 0.02);
}

.values-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 30px;
    margin-top: 60px;
}

.value-card {
    background: rgba(255, 255, 255, 0.05);
    border-radius: 20px;
    padding: 35px;
    border: 1px solid rgba(255, 255, 255, 0.1);
    transition: all 0.3s ease;
}

.value-card:hover {
    transform: translateY(-5px);
    background: rgba(255, 255, 255, 0.08);
    border-color: rgba(0, 212, 170, 0.3);
}

.value-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: 25px;
}

.value-icon {
    width: 60px;
    height: 60px;
    background: linear-gradient(135deg, #00d4aa, #74b9ff);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 24px;
    color: #ffffff;
}

.value-badge {
    background: rgba(0, 212, 170, 0.2);
    color: #00d4aa;
    padding: 6px 12px;
    border-radius: 15px;
    font-size: 12px;
    font-weight: 600;
}

.value-card h3 {
    font-size: 20px;
    font-weight: 600;
    margin-bottom: 15px;
    color: #ffffff;
}

.value-card p {
    color: rgba(255, 255, 255, 0.8);
    line-height: 1.7;
    margin-bottom: 20px;
}

.value-features {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.value-features span {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 14px;
    color: rgba(255, 255, 255, 0.9);
}

.value-features i {
    color: #00d4aa;
    font-size: 12px;
}

/* 团队区域 */
.team-section {
    padding: 80px 40px;
}

.team-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr;
    gap: 30px;
    margin-top: 60px;
}

.team-member {
    background: rgba(255, 255, 255, 0.05);
    border-radius: 20px;
    padding: 30px;
    border: 1px solid rgba(255, 255, 255, 0.1);
    transition: all 0.3s ease;
    text-align: center;
}

.team-member:hover {
    transform: translateY(-5px);
    background: rgba(255, 255, 255, 0.08);
    border-color: rgba(0, 212, 170, 0.3);
}

.team-member.featured {
    grid-row: span 2;
    text-align: left;
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.member-avatar {
    position: relative;
    width: 80px;
    height: 80px;
    margin: 0 auto 20px;
}

.team-member.featured .member-avatar {
    width: 120px;
    height: 120px;
    margin: 0 auto 30px;
}

.avatar-ring {
    position: absolute;
    top: -10px;
    left: -10px;
    width: 140px;
    height: 140px;
    border: 3px solid transparent;
    border-top-color: #00d4aa;
    border-radius: 50%;
    animation: rotate 4s linear infinite;
}

.avatar-content {
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 32px;
    border: 4px solid rgba(255, 255, 255, 0.1);
}

.team-member.featured .avatar-content {
    font-size: 48px;
}

.member-badge {
    position: absolute;
    top: -5px;
    right: -5px;
    width: 30px;
    height: 30px;
    background: linear-gradient(135deg, #00d4aa, #74b9ff);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 14px;
    color: #ffffff;
}

.member-info h3 {
    font-size: 20px;
    font-weight: 600;
    color: #ffffff;
    margin-bottom: 8px;
}

.team-member.featured .member-info h3 {
    font-size: 28px;
}

.member-role {
    color: #00d4aa;
    font-weight: 500;
    margin-bottom: 15px;
    font-size: 14px;
}

.team-member.featured .member-role {
    font-size: 16px;
}

.member-description {
    color: rgba(255, 255, 255, 0.8);
    line-height: 1.6;
    font-size: 14px;
    margin-bottom: 15px;
}

.member-achievements {
    display: flex;
    gap: 10px;
    flex-wrap: wrap;
    justify-content: center;
}

.team-member.featured .member-achievements {
    justify-content: flex-start;
}

.member-achievements span {
    background: rgba(0, 212, 170, 0.2);
    color: #00d4aa;
    padding: 4px 8px;
    border-radius: 10px;
    font-size: 11px;
    font-weight: 500;
    display: flex;
    align-items: center;
    gap: 4px;
}

/* 加入我们区域 */
.join-section {
    background: linear-gradient(135deg, rgba(0, 212, 170, 0.1), rgba(116, 185, 255, 0.1));
    padding: 80px 40px;
}

.join-content {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 60px;
    align-items: center;
    max-width: 1200px;
    margin: 0 auto;
}

.join-text h2 {
    font-size: 36px;
    font-weight: 700;
    margin-bottom: 20px;
    background: linear-gradient(135deg, #00d4aa, #74b9ff);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.join-text p {
    font-size: 16px;
    color: rgba(255, 255, 255, 0.8);
    line-height: 1.6;
    margin-bottom: 30px;
}

.join-benefits {
    display: flex;
    flex-direction: column;
    gap: 15px;
    margin-bottom: 40px;
}

.benefit-item {
    display: flex;
    align-items: center;
    gap: 12px;
    color: rgba(255, 255, 255, 0.9);
    font-weight: 500;
}

.benefit-item i {
    color: #00d4aa;
    font-size: 16px;
}

.join-actions {
    display: flex;
    gap: 20px;
}

.btn-join-primary, .btn-join-secondary {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 16px 32px;
    border-radius: 30px;
    font-weight: 600;
    font-size: 16px;
    text-decoration: none;
    transition: all 0.3s ease;
}

.btn-join-primary {
    background: linear-gradient(135deg, #00d4aa, #00b894);
    color: #ffffff;
    box-shadow: 0 8px 25px rgba(0, 212, 170, 0.3);
}

.btn-join-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 12px 35px rgba(0, 212, 170, 0.4);
}

.btn-join-secondary {
    background: transparent;
    color: #ffffff;
    border: 2px solid rgba(255, 255, 255, 0.3);
}

.btn-join-secondary:hover {
    background: rgba(255, 255, 255, 0.1);
    border-color: rgba(255, 255, 255, 0.5);
}

.join-visual {
    display: flex;
    justify-content: center;
    align-items: center;
}

.visual-elements {
    position: relative;
    width: 200px;
    height: 200px;
}

.floating-element {
    position: absolute;
    width: 60px;
    height: 60px;
    background: rgba(255, 255, 255, 0.1);
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 24px;
    color: #00d4aa;
    animation: float 3s ease-in-out infinite;
}

.floating-element:nth-child(1) {
    top: 20px;
    left: 50%;
    transform: translateX(-50%);
    animation-delay: 0s;
}

.floating-element:nth-child(2) {
    bottom: 20px;
    left: 20px;
    animation-delay: -1s;
}

.floating-element:nth-child(3) {
    bottom: 20px;
    right: 20px;
    animation-delay: -2s;
}

/* 响应式设计 */
@media (max-width: 1200px) {
    .mission-grid {
        grid-template-columns: 1fr;
    }
    
    .team-grid {
        grid-template-columns: 1fr;
    }
    
    .values-grid {
        grid-template-columns: 1fr;
    }
    
    .join-content {
        grid-template-columns: 1fr;
        text-align: center;
    }
}

@media (max-width: 768px) {
    .page-hero-title {
        font-size: 36px;
    }
    
    .page-hero-stats {
        flex-direction: column;
        gap: 20px;
        align-items: center;
    }
    
    .timeline-line {
        left: 30px;
    }
    
    .timeline-item {
        grid-template-columns: 1fr;
        padding-left: 60px;
    }
    
    .timeline-item:nth-child(even) .timeline-content,
    .timeline-item:nth-child(odd) .timeline-content {
        grid-column: 1;
        text-align: left;
        max-width: 100%;
    }
    
    .timeline-marker {
        position: absolute;
        left: 30px;
        transform: translateX(-50%);
    }
    
    .section-container {
        padding: 60px 20px;
    }
    
    .join-actions {
        flex-direction: column;
        align-items: center;
    }
}

/* 滚动条样式 */
::-webkit-scrollbar {
    width: 8px;
}

::-webkit-scrollbar-track {
    background: rgba(255, 255, 255, 0.1);
}

::-webkit-scrollbar-thumb {
    background: rgba(0, 212, 170, 0.6);
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: rgba(0, 212, 170, 0.8);
}

/* 条款页面专用样式 */
.terms-meta-info {
    display: flex;
    justify-content: center;
    gap: 30px;
    margin-top: 30px;
    flex-wrap: wrap;
}

.meta-item {
    display: flex;
    align-items: center;
    gap: 8px;
    background: rgba(255, 255, 255, 0.1);
    padding: 10px 16px;
    border-radius: 20px;
    font-size: 14px;
    color: rgba(255, 255, 255, 0.9);
    border: 1px solid rgba(255, 255, 255, 0.2);
}

.meta-item i {
    color: #00d4aa;
}

.terms-navigation {
    background: rgba(255, 255, 255, 0.02);
    padding: 80px 40px;
}

.nav-header {
    text-align: center;
    margin-bottom: 50px;
}

.nav-header h2 {
    font-size: 32px;
    font-weight: 700;
    margin-bottom: 15px;
    background: linear-gradient(135deg, #00d4aa, #74b9ff);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.nav-header p {
    color: rgba(255, 255, 255, 0.7);
    font-size: 16px;
}

.nav-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 25px;
    max-width: 1200px;
    margin: 0 auto;
}

.nav-card {
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 20px;
    padding: 30px;
    text-decoration: none;
    transition: all 0.3s ease;
    display: block;
}

.nav-card:hover {
    transform: translateY(-5px);
    background: rgba(255, 255, 255, 0.08);
    border-color: rgba(0, 212, 170, 0.3);
    box-shadow: 0 10px 30px rgba(0, 212, 170, 0.1);
}

.nav-icon {
    width: 60px;
    height: 60px;
    background: linear-gradient(135deg, #00d4aa, #74b9ff);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 24px;
    color: #ffffff;
    margin-bottom: 20px;
}

.nav-card h3 {
    font-size: 20px;
    font-weight: 600;
    color: #ffffff;
    margin-bottom: 10px;
}

.nav-card p {
    color: rgba(255, 255, 255, 0.7);
    line-height: 1.6;
    font-size: 14px;
}

.terms-content-section {
    padding: 80px 40px;
}

.terms-article {
    max-width: 1000px;
    margin: 0 auto 60px;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 20px;
    overflow: hidden;
    transition: all 0.3s ease;
}

.terms-article:hover {
    background: rgba(255, 255, 255, 0.08);
    border-color: rgba(0, 212, 170, 0.3);
}

.article-header {
    background: linear-gradient(135deg, rgba(0, 212, 170, 0.1), rgba(116, 185, 255, 0.1));
    padding: 30px 40px;
    display: flex;
    align-items: center;
    gap: 25px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.article-number {
    width: 60px;
    height: 60px;
    background: linear-gradient(135deg, #00d4aa, #74b9ff);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 24px;
    font-weight: 700;
    color: #ffffff;
    flex-shrink: 0;
}

.article-title h2 {
    font-size: 28px;
    font-weight: 700;
    color: #ffffff;
    margin-bottom: 8px;
}

.article-title p {
    color: rgba(255, 255, 255, 0.7);
    font-size: 16px;
    margin: 0;
}

.article-content {
    padding: 40px;
}

.article-content > p {
    color: rgba(255, 255, 255, 0.8);
    line-height: 1.8;
    font-size: 16px;
    margin-bottom: 30px;
}

.content-subsection {
    margin-bottom: 35px;
}

.content-subsection h3 {
    font-size: 20px;
    font-weight: 600;
    color: #00d4aa;
    margin-bottom: 20px;
    display: flex;
    align-items: center;
    gap: 10px;
}

.content-subsection h3::before {
    content: '';
    width: 4px;
    height: 20px;
    background: linear-gradient(135deg, #00d4aa, #74b9ff);
    border-radius: 2px;
}

.styled-list {
    list-style: none;
    padding: 0;
    margin: 0 0 20px 0;
}

.styled-list li {
    color: rgba(255, 255, 255, 0.8);
    line-height: 1.7;
    margin-bottom: 12px;
    padding-left: 25px;
    position: relative;
}

.styled-list li::before {
    content: '→';
    color: #00d4aa;
    font-weight: bold;
    position: absolute;
    left: 0;
    top: 0;
}

.highlight-notice, .security-notice {
    background: rgba(0, 212, 170, 0.1);
    border: 1px solid rgba(0, 212, 170, 0.3);
    border-radius: 15px;
    padding: 25px;
    margin: 30px 0;
    display: flex;
    gap: 20px;
    align-items: flex-start;
}

.notice-icon {
    width: 50px;
    height: 50px;
    background: rgba(0, 212, 170, 0.2);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 20px;
    color: #00d4aa;
    flex-shrink: 0;
}

.notice-content h4 {
    color: #00d4aa;
    font-size: 18px;
    font-weight: 600;
    margin-bottom: 10px;
}

.notice-content p {
    color: rgba(255, 255, 255, 0.9);
    line-height: 1.6;
    margin: 0;
}

.service-grid, .requirement-grid, .rights-grid, .prohibited-grid, .conduct-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 20px;
    margin: 25px 0;
}

.service-item, .requirement-item, .rights-item, .prohibited-item, .conduct-item {
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 15px;
    padding: 25px;
    text-align: center;
    transition: all 0.3s ease;
}

.service-item:hover, .requirement-item:hover, .rights-item:hover {
    background: rgba(255, 255, 255, 0.08);
    border-color: rgba(0, 212, 170, 0.3);
    transform: translateY(-3px);
}

.prohibited-item, .conduct-item.negative {
    border-color: rgba(255, 107, 107, 0.3);
}

.prohibited-item:hover, .conduct-item.negative:hover {
    background: rgba(255, 107, 107, 0.05);
    border-color: rgba(255, 107, 107, 0.5);
}

.service-item i, .requirement-item i, .rights-item i, .prohibited-item i, .conduct-item i {
    font-size: 32px;
    margin-bottom: 15px;
    color: #00d4aa;
}

.prohibited-item i, .conduct-item.negative i {
    color: #ff6b6b;
}

.service-item h4, .requirement-item h4, .rights-item h4, .prohibited-item h4, .conduct-item h4 {
    font-size: 16px;
    font-weight: 600;
    color: #ffffff;
    margin-bottom: 10px;
}

.service-item p, .requirement-item p, .rights-item p, .prohibited-item p, .conduct-item p {
    color: rgba(255, 255, 255, 0.7);
    font-size: 14px;
    line-height: 1.5;
    margin: 0;
}

.moderation-process {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 20px;
    margin: 25px 0;
}

.process-step {
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 15px;
    padding: 25px;
    text-align: center;
    position: relative;
}

.step-number {
    width: 40px;
    height: 40px;
    background: linear-gradient(135deg, #00d4aa, #74b9ff);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 18px;
    font-weight: 700;
    color: #ffffff;
    margin: 0 auto 15px;
}

.process-step h4 {
    font-size: 16px;
    font-weight: 600;
    color: #ffffff;
    margin-bottom: 10px;
}

.process-step p {
    color: rgba(255, 255, 255, 0.7);
    font-size: 14px;
    line-height: 1.5;
    margin: 0;
}

.penalty-system {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 20px;
    margin: 25px 0;
}

.penalty-level {
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 15px;
    padding: 25px;
    text-align: center;
    transition: all 0.3s ease;
}

.penalty-level.level-1 { border-color: rgba(255, 193, 7, 0.3); }
.penalty-level.level-2 { border-color: rgba(255, 152, 0, 0.3); }
.penalty-level.level-3 { border-color: rgba(255, 87, 34, 0.3); }
.penalty-level.level-4 { border-color: rgba(244, 67, 54, 0.3); }

.level-icon {
    width: 50px;
    height: 50px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 20px;
    color: #ffffff;
    margin: 0 auto 15px;
}

.level-1 .level-icon { background: #ffc107; }
.level-2 .level-icon { background: #ff9800; }
.level-3 .level-icon { background: #ff5722; }
.level-4 .level-icon { background: #f44336; }

.penalty-level h4 {
    font-size: 16px;
    font-weight: 600;
    color: #ffffff;
    margin-bottom: 10px;
}

.penalty-level p {
    color: rgba(255, 255, 255, 0.7);
    font-size: 14px;
    line-height: 1.5;
    margin: 0;
}

.contact-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 25px;
    margin: 30px 0;
}

.contact-item {
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 15px;
    padding: 30px;
    text-align: center;
    transition: all 0.3s ease;
}

.contact-item:hover {
    background: rgba(255, 255, 255, 0.08);
    border-color: rgba(0, 212, 170, 0.3);
    transform: translateY(-3px);
}

.contact-icon {
    width: 60px;
    height: 60px;
    background: linear-gradient(135deg, #00d4aa, #74b9ff);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 24px;
    color: #ffffff;
    margin: 0 auto 20px;
}

.contact-item h4 {
    font-size: 18px;
    font-weight: 600;
    color: #ffffff;
    margin-bottom: 10px;
}

.contact-item p {
    color: rgba(255, 255, 255, 0.7);
    font-size: 14px;
    margin-bottom: 15px;
}

.contact-link {
    color: #00d4aa;
    text-decoration: none;
    font-weight: 500;
    transition: color 0.3s ease;
}

.contact-link:hover {
    color: #74b9ff;
}

.contact-detail {
    color: rgba(255, 255, 255, 0.6);
    font-size: 12px;
    display: block;
    margin-top: 5px;
}

.response-promise {
    background: rgba(0, 212, 170, 0.1);
    border: 1px solid rgba(0, 212, 170, 0.3);
    border-radius: 15px;
    padding: 25px;
    margin: 30px 0;
    display: flex;
    gap: 20px;
    align-items: center;
}

.promise-icon {
    width: 50px;
    height: 50px;
    background: rgba(0, 212, 170, 0.2);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 20px;
    color: #00d4aa;
    flex-shrink: 0;
}

.promise-content h4 {
    color: #00d4aa;
    font-size: 18px;
    font-weight: 600;
    margin-bottom: 8px;
}

.promise-content p {
    color: rgba(255, 255, 255, 0.9);
    line-height: 1.6;
    margin: 0;
}

.terms-update-section {
    background: linear-gradient(135deg, rgba(0, 212, 170, 0.1), rgba(116, 185, 255, 0.1));
    padding: 80px 40px;
}

.update-notice {
    max-width: 1000px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 40px;
    align-items: center;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 20px;
    padding: 40px;
}

.update-notice h3 {
    font-size: 28px;
    font-weight: 700;
    margin-bottom: 15px;
    background: linear-gradient(135deg, #00d4aa, #74b9ff);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.update-notice p {
    color: rgba(255, 255, 255, 0.8);
    line-height: 1.7;
    margin-bottom: 25px;
}

.update-actions {
    display: flex;
    gap: 15px;
    flex-wrap: wrap;
}

.btn-subscribe, .btn-privacy {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 12px 24px;
    border-radius: 25px;
    font-weight: 600;
    font-size: 14px;
    text-decoration: none;
    transition: all 0.3s ease;
}

.btn-subscribe {
    background: linear-gradient(135deg, #00d4aa, #00b894);
    color: #ffffff;
    box-shadow: 0 6px 20px rgba(0, 212, 170, 0.3);
}

.btn-subscribe:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(0, 212, 170, 0.4);
}

.btn-privacy {
    background: transparent;
    color: #ffffff;
    border: 2px solid rgba(255, 255, 255, 0.3);
}

.btn-privacy:hover {
    background: rgba(255, 255, 255, 0.1);
    border-color: rgba(255, 255, 255, 0.5);
}

.notice-visual {
    display: flex;
    justify-content: center;
    align-items: center;
}

.visual-icon {
    width: 120px;
    height: 120px;
    background: rgba(255, 255, 255, 0.1);
    border: 2px solid rgba(255, 255, 255, 0.2);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 48px;
    color: #00d4aa;
    animation: float 3s ease-in-out infinite;
}

/* 响应式设计 */
@media (max-width: 1200px) {
    .nav-grid {
        grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    }
    
    .update-notice {
        grid-template-columns: 1fr;
        text-align: center;
    }
}

@media (max-width: 768px) {
    .terms-meta-info {
        flex-direction: column;
        gap: 15px;
        align-items: center;
    }
    
    .nav-grid {
        grid-template-columns: 1fr;
    }
    
    .article-header {
        flex-direction: column;
        text-align: center;
        gap: 15px;
    }
    
    .article-content {
        padding: 25px;
    }
    
    .service-grid, .requirement-grid, .rights-grid, .prohibited-grid, .conduct-grid {
        grid-template-columns: 1fr;
    }
    
    .moderation-process, .penalty-system {
        grid-template-columns: 1fr;
    }
    
    .contact-grid {
        grid-template-columns: 1fr;
    }
    
    .update-actions {
        justify-content: center;
    }
}

/* 隐私政策页面专用样式 */
.privacy-principles {
    display: flex;
    justify-content: center;
    gap: 40px;
    margin-top: 30px;
    flex-wrap: wrap;
}

.principle-item {
    display: flex;
    align-items: center;
    gap: 10px;
    background: rgba(255, 255, 255, 0.1);
    padding: 12px 20px;
    border-radius: 25px;
    font-weight: 500;
    color: rgba(255, 255, 255, 0.9);
    border: 1px solid rgba(255, 255, 255, 0.2);
}

.principle-item i {
    color: #00d4aa;
    font-size: 16px;
}

.privacy-commitment {
    background: rgba(255, 255, 255, 0.02);
    padding: 80px 40px;
}

.commitment-content {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 60px;
    align-items: center;
    max-width: 1200px;
    margin: 0 auto;
}

.commitment-text h2 {
    font-size: 36px;
    font-weight: 700;
    margin-bottom: 20px;
    background: linear-gradient(135deg, #00d4aa, #74b9ff);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.commitment-text p {
    color: rgba(255, 255, 255, 0.8);
    line-height: 1.7;
    margin-bottom: 30px;
    font-size: 16px;
}

.commitment-features {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
}

.feature-item {
    display: flex;
    align-items: center;
    gap: 12px;
    color: rgba(255, 255, 255, 0.9);
    font-weight: 500;
}

.feature-item i {
    color: #00d4aa;
    font-size: 18px;
}

.commitment-visual {
    display: flex;
    justify-content: center;
    align-items: center;
}

.shield-icon {
    width: 200px;
    height: 200px;
    background: linear-gradient(135deg, rgba(0, 212, 170, 0.2), rgba(116, 185, 255, 0.2));
    border: 3px solid rgba(0, 212, 170, 0.3);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 80px;
    color: #00d4aa;
    animation: pulse 2s ease-in-out infinite;
}

.data-collection-section {
    padding: 80px 40px;
}

.collection-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
    margin-top: 60px;
}

.collection-category {
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 20px;
    padding: 30px;
    transition: all 0.3s ease;
}

.collection-category:hover {
    background: rgba(255, 255, 255, 0.08);
    border-color: rgba(0, 212, 170, 0.3);
    transform: translateY(-5px);
}

.category-header {
    display: flex;
    align-items: center;
    gap: 15px;
    margin-bottom: 20px;
}

.category-icon {
    width: 50px;
    height: 50px;
    background: linear-gradient(135deg, #00d4aa, #74b9ff);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 20px;
    color: #ffffff;
}

.category-header h3 {
    font-size: 20px;
    font-weight: 600;
    color: #ffffff;
}

.category-content p {
    color: rgba(255, 255, 255, 0.8);
    line-height: 1.6;
    margin-bottom: 15px;
}

.info-list {
    list-style: none;
    padding: 0;
    margin: 0;
}

.info-list li {
    color: rgba(255, 255, 255, 0.7);
    line-height: 1.6;
    margin-bottom: 8px;
    padding-left: 20px;
    position: relative;
}

.info-list li::before {
    content: '•';
    color: #00d4aa;
    font-weight: bold;
    position: absolute;
    left: 0;
    top: 0;
}

.data-usage-section {
    background: rgba(255, 255, 255, 0.02);
    padding: 80px 40px;
}

.usage-timeline {
    max-width: 800px;
    margin: 60px auto 0;
    position: relative;
}

.usage-timeline::before {
    content: '';
    position: absolute;
    left: 30px;
    top: 0;
    bottom: 0;
    width: 2px;
    background: linear-gradient(to bottom, #00d4aa, #74b9ff);
}

.timeline-item {
    display: flex;
    gap: 30px;
    margin-bottom: 50px;
    position: relative;
}

.timeline-icon {
    width: 60px;
    height: 60px;
    background: linear-gradient(135deg, #00d4aa, #74b9ff);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 24px;
    color: #ffffff;
    flex-shrink: 0;
    border: 4px solid rgba(26, 26, 46, 1);
    z-index: 2;
}

.timeline-content {
    flex: 1;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 15px;
    padding: 25px;
    margin-top: 10px;
}

.timeline-content h3 {
    font-size: 20px;
    font-weight: 600;
    color: #ffffff;
    margin-bottom: 10px;
}

.timeline-content p {
    color: rgba(255, 255, 255, 0.8);
    line-height: 1.6;
    margin-bottom: 15px;
}

.usage-examples {
    display: flex;
    gap: 10px;
    flex-wrap: wrap;
}

.usage-examples span {
    background: rgba(0, 212, 170, 0.2);
    color: #00d4aa;
    padding: 4px 12px;
    border-radius: 15px;
    font-size: 12px;
    font-weight: 500;
}

.user-rights-section {
    padding: 80px 40px;
}

.rights-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 25px;
    margin-top: 60px;
}

.rights-card {
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 20px;
    padding: 30px;
    text-align: center;
    transition: all 0.3s ease;
}

.rights-card:hover {
    background: rgba(255, 255, 255, 0.08);
    border-color: rgba(0, 212, 170, 0.3);
    transform: translateY(-5px);
}

.rights-icon {
    width: 70px;
    height: 70px;
    background: linear-gradient(135deg, #00d4aa, #74b9ff);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 28px;
    color: #ffffff;
    margin: 0 auto 20px;
}

.rights-card h3 {
    font-size: 20px;
    font-weight: 600;
    color: #ffffff;
    margin-bottom: 15px;
}

.rights-card p {
    color: rgba(255, 255, 255, 0.8);
    line-height: 1.6;
    margin-bottom: 20px;
}

.rights-action {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    color: #00d4aa;
    text-decoration: none;
    font-weight: 500;
    padding: 8px 16px;
    border: 1px solid rgba(0, 212, 170, 0.3);
    border-radius: 20px;
    transition: all 0.3s ease;
}

.rights-action:hover {
    background: rgba(0, 212, 170, 0.1);
    border-color: rgba(0, 212, 170, 0.5);
}

.data-security-section {
    background: rgba(255, 255, 255, 0.02);
    padding: 80px 40px;
}

.security-content {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 60px;
    align-items: center;
    max-width: 1200px;
    margin: 0 auto;
}

.security-text h2 {
    font-size: 36px;
    font-weight: 700;
    margin-bottom: 20px;
    background: linear-gradient(135deg, #00d4aa, #74b9ff);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.security-text p {
    color: rgba(255, 255, 255, 0.8);
    line-height: 1.7;
    margin-bottom: 30px;
    font-size: 16px;
}

.security-measures {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
}

.measure-item {
    display: flex;
    gap: 15px;
    align-items: flex-start;
}

.measure-icon {
    width: 40px;
    height: 40px;
    background: rgba(0, 212, 170, 0.2);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 16px;
    color: #00d4aa;
    flex-shrink: 0;
}

.measure-content h4 {
    font-size: 16px;
    font-weight: 600;
    color: #ffffff;
    margin-bottom: 5px;
}

.measure-content p {
    color: rgba(255, 255, 255, 0.7);
    font-size: 14px;
    line-height: 1.5;
    margin: 0;
}

.security-visual {
    display: flex;
    justify-content: center;
    align-items: center;
}

.security-layers {
    position: relative;
    width: 200px;
    height: 200px;
}

.layer {
    position: absolute;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #00d4aa;
    border: 2px solid rgba(0, 212, 170, 0.3);
    animation: rotate 10s linear infinite;
}

.layer-1 {
    width: 200px;
    height: 200px;
    font-size: 60px;
    background: rgba(0, 212, 170, 0.1);
    animation-duration: 15s;
}

.layer-2 {
    width: 140px;
    height: 140px;
    font-size: 40px;
    background: rgba(0, 212, 170, 0.15);
    top: 30px;
    left: 30px;
    animation-duration: 12s;
    animation-direction: reverse;
}

.layer-3 {
    width: 80px;
    height: 80px;
    font-size: 24px;
    background: rgba(0, 212, 170, 0.2);
    top: 60px;
    left: 60px;
    animation-duration: 8s;
}

.privacy-contact-section {
    padding: 80px 40px;
}

.contact-header {
    text-align: center;
    margin-bottom: 50px;
}

.contact-header h2 {
    font-size: 32px;
    font-weight: 700;
    margin-bottom: 15px;
    background: linear-gradient(135deg, #00d4aa, #74b9ff);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.contact-header p {
    color: rgba(255, 255, 255, 0.8);
    font-size: 16px;
    max-width: 600px;
    margin: 0 auto;
    line-height: 1.6;
}

.contact-options {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
    margin-bottom: 40px;
}

.contact-option {
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 20px;
    padding: 30px;
    text-align: center;
    transition: all 0.3s ease;
}

.contact-option:hover {
    background: rgba(255, 255, 255, 0.08);
    border-color: rgba(0, 212, 170, 0.3);
    transform: translateY(-5px);
}

.option-icon {
    width: 60px;
    height: 60px;
    background: linear-gradient(135deg, #00d4aa, #74b9ff);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 24px;
    color: #ffffff;
    margin: 0 auto 20px;
}

.contact-option h3 {
    font-size: 20px;
    font-weight: 600;
    color: #ffffff;
    margin-bottom: 10px;
}

.contact-option p {
    color: rgba(255, 255, 255, 0.8);
    line-height: 1.6;
    margin-bottom: 20px;
}

.contact-link {
    color: #00d4aa;
    text-decoration: none;
    font-weight: 500;
    padding: 8px 16px;
    border: 1px solid rgba(0, 212, 170, 0.3);
    border-radius: 20px;
    transition: all 0.3s ease;
    display: inline-block;
}

.contact-link:hover {
    background: rgba(0, 212, 170, 0.1);
    border-color: rgba(0, 212, 170, 0.5);
}

.response-time {
    text-align: center;
    background: rgba(0, 212, 170, 0.1);
    border: 1px solid rgba(0, 212, 170, 0.3);
    border-radius: 15px;
    padding: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    color: rgba(255, 255, 255, 0.9);
    font-weight: 500;
}

.response-time i {
    color: #00d4aa;
    font-size: 18px;
}

/* 响应式设计 */
@media (max-width: 1200px) {
    .commitment-content, .security-content {
        grid-template-columns: 1fr;
        text-align: center;
    }
    
    .commitment-features, .security-measures {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 768px) {
    .privacy-principles {
        flex-direction: column;
        align-items: center;
        gap: 15px;
    }
    
    .collection-grid, .rights-grid, .contact-options {
        grid-template-columns: 1fr;
    }
    
    .usage-timeline::before {
        left: 20px;
    }
    
    .timeline-item {
        flex-direction: column;
        align-items: flex-start;
        padding-left: 50px;
    }
    
    .timeline-icon {
        position: absolute;
        left: 20px;
        transform: translateX(-50%);
    }
    
    .timeline-content {
        margin-top: 0;
        margin-left: 0;
    }
}

/* 联系我们和帮助中心页面样式 */
.contact-methods-section, .help-categories-section {
    padding: 80px 40px;
}

.contact-grid, .categories-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
    margin-top: 60px;
}

.contact-card, .category-card {
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 20px;
    padding: 30px;
    text-align: center;
    transition: all 0.3s ease;
}

.contact-card:hover, .category-card:hover {
    background: rgba(255, 255, 255, 0.08);
    border-color: rgba(0, 212, 170, 0.3);
    transform: translateY(-5px);
}

.contact-card.primary {
    border-color: rgba(0, 212, 170, 0.5);
    background: linear-gradient(135deg, rgba(0, 212, 170, 0.1), rgba(116, 185, 255, 0.1));
}

.contact-icon, .category-icon {
    width: 60px;
    height: 60px;
    background: linear-gradient(135deg, #00d4aa, #74b9ff);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 24px;
    color: #ffffff;
    margin: 0 auto 20px;
}

.contact-card h3, .category-card h3 {
    font-size: 20px;
    font-weight: 600;
    color: #ffffff;
    margin-bottom: 15px;
}

.contact-card p, .category-card p {
    color: rgba(255, 255, 255, 0.8);
    line-height: 1.6;
    margin-bottom: 20px;
}

.contact-info {
    margin: 20px 0;
}

.contact-info span {
    display: block;
    margin-bottom: 8px;
    font-size: 14px;
}

.status.online {
    color: #00d4aa;
    font-weight: 600;
}

.email {
    color: #74b9ff;
    font-weight: 500;
}

.priority, .feedback {
    color: #ffa500;
    font-weight: 500;
}

.response-time {
    color: rgba(255, 255, 255, 0.7);
}

.contact-btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: linear-gradient(135deg, #00d4aa, #74b9ff);
    color: #ffffff;
    padding: 12px 24px;
    border-radius: 25px;
    text-decoration: none;
    font-weight: 600;
    transition: all 0.3s ease;
}

.contact-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(0, 212, 170, 0.3);
}

.category-links {
    list-style: none;
    padding: 0;
    margin: 0;
    text-align: left;
}

.category-links li {
    margin-bottom: 8px;
}

.category-links a {
    color: rgba(255, 255, 255, 0.7);
    text-decoration: none;
    font-size: 14px;
    transition: color 0.3s ease;
}

.category-links a:hover {
    color: #00d4aa;
}

.office-section {
    background: rgba(255, 255, 255, 0.02);
    padding: 80px 40px;
}

.office-content {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 60px;
    align-items: center;
    max-width: 1200px;
    margin: 0 auto;
}

.office-text h2 {
    font-size: 32px;
    font-weight: 700;
    margin-bottom: 20px;
    background: linear-gradient(135deg, #00d4aa, #74b9ff);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.office-text p {
    color: rgba(255, 255, 255, 0.8);
    line-height: 1.7;
    margin-bottom: 30px;
}

.office-list {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.office-item {
    display: flex;
    align-items: center;
    gap: 15px;
    background: rgba(255, 255, 255, 0.05);
    padding: 20px;
    border-radius: 15px;
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.office-flag {
    font-size: 32px;
}

.office-details h4 {
    font-size: 16px;
    font-weight: 600;
    color: #ffffff;
    margin-bottom: 5px;
}

.office-details p {
    color: rgba(255, 255, 255, 0.8);
    font-size: 14px;
    margin-bottom: 5px;
}

.office-details span {
    color: rgba(255, 255, 255, 0.6);
    font-size: 12px;
}

.office-visual {
    display: flex;
    justify-content: center;
    align-items: center;
}

.world-map {
    width: 200px;
    height: 200px;
    background: linear-gradient(135deg, rgba(0, 212, 170, 0.2), rgba(116, 185, 255, 0.2));
    border: 3px solid rgba(0, 212, 170, 0.3);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 80px;
    color: #00d4aa;
    animation: pulse 2s ease-in-out infinite;
}

.quick-help-section {
    padding: 80px 40px;
}

.help-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 25px;
    margin-top: 60px;
}

.help-item {
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 15px;
    padding: 25px;
    text-align: center;
    transition: all 0.3s ease;
}

.help-item:hover {
    background: rgba(255, 255, 255, 0.08);
    border-color: rgba(0, 212, 170, 0.3);
    transform: translateY(-3px);
}

.help-item i {
    font-size: 32px;
    color: #00d4aa;
    margin-bottom: 15px;
}

.help-item h4 {
    font-size: 16px;
    font-weight: 600;
    color: #ffffff;
    margin-bottom: 10px;
}

.help-item p {
    color: rgba(255, 255, 255, 0.7);
    font-size: 14px;
    margin-bottom: 15px;
}

.help-item a {
    color: #00d4aa;
    text-decoration: none;
    font-weight: 500;
    font-size: 14px;
}

.help-item a:hover {
    color: #74b9ff;
}

.faq-section {
    background: rgba(255, 255, 255, 0.02);
    padding: 80px 40px;
}

.faq-list {
    max-width: 800px;
    margin: 60px auto 0;
}

.support-section {
    padding: 80px 40px;
}

.support-content {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 60px;
    align-items: center;
    max-width: 1000px;
    margin: 0 auto;
}

.support-text h2 {
    font-size: 32px;
    font-weight: 700;
    margin-bottom: 20px;
    background: linear-gradient(135deg, #00d4aa, #74b9ff);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.support-text p {
    color: rgba(255, 255, 255, 0.8);
    line-height: 1.7;
    margin-bottom: 30px;
}

.support-options {
    display: flex;
    gap: 20px;
    flex-wrap: wrap;
}

.support-btn {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 14px 28px;
    border-radius: 25px;
    text-decoration: none;
    font-weight: 600;
    transition: all 0.3s ease;
}

.support-btn.primary {
    background: linear-gradient(135deg, #00d4aa, #00b894);
    color: #ffffff;
    box-shadow: 0 6px 20px rgba(0, 212, 170, 0.3);
}

.support-btn.primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(0, 212, 170, 0.4);
}

.support-btn:not(.primary) {
    background: transparent;
    color: #ffffff;
    border: 2px solid rgba(255, 255, 255, 0.3);
}

.support-btn:not(.primary):hover {
    background: rgba(255, 255, 255, 0.1);
    border-color: rgba(255, 255, 255, 0.5);
}

.support-visual {
    display: flex;
    justify-content: center;
    align-items: center;
}

.support-icon {
    width: 150px;
    height: 150px;
    background: linear-gradient(135deg, rgba(0, 212, 170, 0.2), rgba(116, 185, 255, 0.2));
    border: 3px solid rgba(0, 212, 170, 0.3);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 60px;
    color: #00d4aa;
    animation: float 3s ease-in-out infinite;
}

/* 响应式设计 */
@media (max-width: 1200px) {
    .office-content, .support-content {
        grid-template-columns: 1fr;
        text-align: center;
    }
}

@media (max-width: 768px) {
    .contact-grid, .categories-grid, .help-grid {
        grid-template-columns: 1fr;
    }
    
    .office-list {
        gap: 15px;
    }
    
    .office-item {
        flex-direction: column;
        text-align: center;
        gap: 10px;
    }
    
    .support-options {
        justify-content: center;
    }
}

/* 页脚响应式设计 */
@media (max-width: 1024px) {
    .footer-main {
        grid-template-columns: 1fr;
        gap: 40px;
        text-align: center;
    }
    
    .footer-links {
        grid-template-columns: repeat(3, 1fr);
        gap: 30px;
    }
    
    .footer-description {
        max-width: 100%;
    }
}

@media (max-width: 768px) {
    .footer-content {
        padding: 0 20px;
    }
    
    .footer-main {
        padding: 40px 0 30px;
    }
    
    .footer-links {
        grid-template-columns: 1fr;
        gap: 30px;
        text-align: left;
    }
    
    .footer-bottom {
        flex-direction: column;
        gap: 20px;
        text-align: center;
    }
    
    .footer-social {
        justify-content: center;
    }
}