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

body {
    font-family: 'Microsoft YaHei', Arial, sans-serif;
    line-height: 1.6;
    color: #333;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
}

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

/* Banner Section */
.banner {
    position: relative;
    background: linear-gradient(135deg, #0f172a 0%, #1e293b 50%, #312e81 100%);
    min-height: 650px;
    overflow: hidden;
}

.banner-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: radial-gradient(circle at 30% 50%, rgba(99, 102, 241, 0.15) 0%, transparent 50%),
                radial-gradient(circle at 70% 50%, rgba(139, 92, 246, 0.15) 0%, transparent 50%);
    pointer-events: none;
}

.banner-content {
    position: relative;
    display: flex;
    align-items: stretch;
    justify-content: space-between;
    max-width: 1400px;
    margin: 0 auto;
    padding: 60px 40px;
    gap: 60px;
}

.banner-left {
    flex: 1;
    max-width: 45%;
    position: relative;
    display: flex;
    align-items: center;
}

.banner-image {
    width: 100%;
    height: auto;
    border-radius: 24px;
    box-shadow: 0 25px 70px rgba(0, 0, 0, 0.4);
    border: 3px solid rgba(255, 255, 255, 0.1);
    transition: transform 0.3s ease;
}

.banner-image:hover {
    transform: scale(1.02);
}

.image-glow {
    position: absolute;
    top: -20px;
    left: -20px;
    right: -20px;
    bottom: -20px;
    background: linear-gradient(135deg, rgba(99, 102, 241, 0.3), rgba(139, 92, 246, 0.3));
    border-radius: 30px;
    filter: blur(40px);
    z-index: -1;
    opacity: 0.6;
}

.banner-right {
    flex: 1;
    max-width: 50%;
    display: flex;
    flex-direction: column;
    justify-content: center;
}

/* Platform Logos Container */
.platforms-container {
    background: rgba(255, 255, 255, 0.05);
    backdrop-filter: blur(10px);
    border-radius: 20px;
    padding: 30px;
    margin-bottom: 30px;
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.platforms-title {
    color: white;
    font-size: 24px;
    font-weight: bold;
    text-align: center;
    margin-bottom: 25px;
    text-shadow: 0 2px 10px rgba(0, 0, 0, 0.3);
}

.platforms {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 15px;
}

.platform-logo {
    background: linear-gradient(135deg, #ffffff 0%, #f0f9ff 100%);
    padding: 18px 12px;
    border-radius: 12px;
    text-align: center;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
    transition: all 0.3s ease;
    cursor: pointer;
    border: 2px solid transparent;
    position: relative;
    overflow: hidden;
}

.platform-logo::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(99, 102, 241, 0.3), transparent);
    transition: left 0.5s ease;
}

.platform-logo:hover::before {
    left: 100%;
}

.platform-logo:hover {
    transform: translateY(-5px) scale(1.05);
    box-shadow: 0 8px 25px rgba(99, 102, 241, 0.4);
    border-color: rgba(99, 102, 241, 0.5);
}

.platform-name {
    font-weight: bold;
    font-size: 16px;
    background: linear-gradient(135deg, #2563eb, #7c3aed);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    display: block;
}

.platform-img {
    width: 100%;
    height: 100%;
    max-width: 100%;
    max-height: 50px;
    object-fit: contain;
    display: block;
}

/* Main Text */
.main-text {
    text-align: center;
    margin: 30px 0;
}

.main-text h1 {
    font-size: 48px;
    color: white;
    text-shadow: 3px 3px 6px rgba(0, 0, 0, 0.5);
    margin: 10px 0;
    font-weight: bold;
}

.main-text h2 {
    font-size: 36px;
    color: white;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.5);
    margin: 10px 0;
}

.main-text .highlight {
    color: #ff1493;
    font-size: 52px;
    text-shadow: 0 0 20px rgba(255, 20, 147, 0.8),
                 3px 3px 6px rgba(0, 0, 0, 0.5);
    animation: glow 2s ease-in-out infinite alternate;
}

@keyframes glow {
    from {
        text-shadow: 0 0 20px rgba(255, 20, 147, 0.8),
                     3px 3px 6px rgba(0, 0, 0, 0.5);
    }
    to {
        text-shadow: 0 0 30px rgba(255, 20, 147, 1),
                     0 0 40px rgba(255, 20, 147, 0.8),
                     3px 3px 6px rgba(0, 0, 0, 0.5);
    }
}

/* Promotional Banner */
.promo-banner {
    background: linear-gradient(135deg, #fbbf24 0%, #f59e0b 100%);
    padding: 25px 30px;
    border-radius: 20px;
    display: flex;
    align-items: center;
    gap: 20px;
    box-shadow: 0 8px 30px rgba(245, 158, 11, 0.4);
    border: 3px solid rgba(255, 255, 255, 0.3);
    position: relative;
    overflow: hidden;
}

.promo-banner::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -50%;
    width: 200%;
    height: 200%;
    background: linear-gradient(45deg, transparent, rgba(255, 255, 255, 0.1), transparent);
    animation: shine 3s infinite;
}

@keyframes shine {
    0% {
        transform: translateX(-100%) translateY(-100%) rotate(45deg);
    }
    100% {
        transform: translateX(100%) translateY(100%) rotate(45deg);
    }
}

.promo-icon {
    font-size: 48px;
    animation: bounce 2s infinite;
}

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

.promo-content {
    flex: 1;
}

.promo-title {
    font-size: 28px;
    font-weight: bold;
    color: #7c2d12;
    margin: 0 0 5px 0;
    text-shadow: 1px 1px 2px rgba(255, 255, 255, 0.5);
}

.promo-subtitle {
    font-size: 16px;
    color: #92400e;
    margin: 0;
    font-weight: 500;
}

.promo-badge {
    background: linear-gradient(135deg, #dc2626, #991b1b);
    color: white;
    padding: 12px 25px;
    border-radius: 30px;
    font-weight: bold;
    font-size: 16px;
    box-shadow: 0 4px 15px rgba(220, 38, 38, 0.4);
    cursor: pointer;
    transition: all 0.3s ease;
}

.promo-badge:hover {
    transform: scale(1.05);
    box-shadow: 0 6px 20px rgba(220, 38, 38, 0.6);
}

/* Telegram Contact */
.telegram-contact {
    position: absolute;
    bottom: 40px;
    left: 40px;
    background: linear-gradient(135deg, #0088cc, #0077b5);
    padding: 20px 35px;
    border-radius: 60px;
    display: flex;
    align-items: center;
    gap: 20px;
    box-shadow: 0 8px 30px rgba(0, 136, 204, 0.4);
    border: 2px solid rgba(255, 255, 255, 0.2);
    transition: all 0.3s ease;
    cursor: pointer;
}

.telegram-contact:hover {
    transform: translateY(-3px);
    box-shadow: 0 12px 40px rgba(0, 136, 204, 0.6);
}

.tg-icon {
    font-size: 36px;
}

.tg-info {
    display: flex;
    flex-direction: column;
    gap: 2px;
}

.tg-label {
    font-size: 12px;
    color: rgba(255, 255, 255, 0.8);
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.tg-text {
    font-size: 22px;
    font-weight: bold;
    color: white;
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.2);
}

/* Policy Section */
.policy-section {
    background: white;
    padding: 60px 0;
}

.section-title {
    text-align: center;
    font-size: 36px;
    color: #1e40af;
    margin-bottom: 40px;
    font-weight: bold;
}

.activity-info {
    text-align: center;
    margin-bottom: 30px;
}

.activity-time {
    font-size: 20px;
    color: #666;
    font-weight: bold;
}

.policy-columns {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 30px;
    margin-bottom: 40px;
}

.policy-card {
    background: #f8fafc;
    border-radius: 15px;
    overflow: hidden;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
}

.card-header {
    background: linear-gradient(135deg, #3b82f6, #2563eb);
    color: white;
    padding: 20px;
    font-size: 18px;
    font-weight: bold;
    text-align: center;
}

.card-content {
    padding: 25px;
}

.policy-desc {
    font-size: 15px;
    line-height: 1.8;
    margin-bottom: 20px;
    color: #444;
}

.highlight-red {
    color: #ef4444;
    font-weight: bold;
    font-size: 18px;
}

/* Tables */
.policy-table {
    width: 100%;
    border-collapse: collapse;
    margin: 20px 0;
    font-size: 14px;
}

.policy-table th {
    background: #3b82f6;
    color: white;
    padding: 12px 8px;
    text-align: center;
    font-weight: bold;
}

.policy-table td {
    border: 1px solid #ddd;
    padding: 10px 8px;
    text-align: center;
}

.policy-table tbody tr:nth-child(even) {
    background: #f1f5f9;
}

.policy-table tbody tr:hover {
    background: #e0f2fe;
}

.highlight-note {
    background: #fef3c7;
    padding: 15px;
    border-radius: 8px;
    border-left: 4px solid #f59e0b;
    margin: 20px 0;
    font-size: 15px;
}

.policy-notes {
    margin-top: 20px;
    font-size: 13px;
    color: #666;
    line-height: 1.8;
}

.policy-notes p {
    margin-bottom: 10px;
}

/* Activity Rules */
.activity-rules {
    background: #fef2f2;
    padding: 30px;
    border-radius: 15px;
    border: 2px solid #ef4444;
}

.rules-title {
    font-size: 24px;
    color: #dc2626;
    margin-bottom: 20px;
    font-weight: bold;
}

.rules-list {
    padding-left: 25px;
    font-size: 15px;
    line-height: 2;
    color: #444;
}

.rules-list li {
    margin-bottom: 10px;
}

/* Contact Section */
.contact-section {
    background: linear-gradient(135deg, #6366f1, #8b5cf6);
    padding: 60px 0;
}

.contact-section .section-title {
    color: white;
}

.contact-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
    margin-top: 40px;
}

.contact-item {
    background: white;
    padding: 30px;
    border-radius: 15px;
    display: flex;
    align-items: center;
    gap: 20px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.2);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.contact-item:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.3);
}

.contact-icon {
    font-size: 48px;
}

.contact-info {
    flex: 1;
}

.contact-label {
    font-size: 16px;
    color: #666;
    margin-bottom: 5px;
}

.contact-value {
    font-size: 20px;
    font-weight: bold;
    color: #1e40af;
}

/* Chat Section */
.chat-section {
    background: linear-gradient(135deg, #f0f9ff 0%, #e0f2fe 100%);
    padding: 40px 0;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.chat-section::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle, rgba(99, 102, 241, 0.05) 0%, transparent 70%);
    animation: rotate 30s linear infinite;
}

@keyframes rotate {
    from {
        transform: rotate(0deg);
    }
    to {
        transform: rotate(360deg);
    }
}

.chat-section .container {
    position: relative;
    z-index: 1;
}

.chat-button {
    display: inline-flex;
    flex-direction: column;
    align-items: center;
    gap: 15px;
    background: linear-gradient(135deg, #ffffff 0%, #f8fafc 100%);
    color: white;
    padding: 35px 70px;
    border-radius: 20px;
    text-decoration: none;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.08);
    transition: all 0.4s ease;
    border: 2px solid rgba(99, 102, 241, 0.1);
    position: relative;
    overflow: hidden;
}

.chat-button::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(99, 102, 241, 0.1), transparent);
    transition: left 0.6s ease;
}

.chat-button:hover::before {
    left: 100%;
}

.chat-button:hover {
    transform: translateY(-8px) scale(1.02);
    box-shadow: 0 20px 60px rgba(99, 102, 241, 0.2);
    border-color: rgba(99, 102, 241, 0.3);
}

.chat-top {
    display: flex;
    justify-content: center;
    align-items: center;
    width: 100%;
}

.chat-bottom {
    display: flex;
    justify-content: center;
    align-items: center;
    width: 100%;
}

.chat-im-img {
    max-width: 280px;
    height: auto;
    display: block;
}

.chat-text-img {
    max-width: 320px;
    height: auto;
    display: block;
}

/* Footer */
.footer {
    background: #1e293b;
    color: white;
    padding: 30px 0;
    text-align: center;
}

.footer p {
    font-size: 14px;
}

/* Back to Top Button */
.back-to-top {
    position: fixed;
    bottom: 80px;
    right: 30px;
    width: 50px;
    height: 50px;
    background: linear-gradient(135deg, #6366f1, #8b5cf6);
    color: white;
    border: none;
    border-radius: 50%;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 4px 20px rgba(99, 102, 241, 0.4);
    transition: all 0.3s ease;
    opacity: 0;
    visibility: hidden;
    z-index: 1000;
}

.back-to-top.show {
    opacity: 1;
    visibility: visible;
}

.back-to-top:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 30px rgba(99, 102, 241, 0.6);
    background: linear-gradient(135deg, #7c3aed, #a855f7);
}

.back-to-top:active {
    transform: translateY(-2px);
}

.back-to-top-icon {
    font-size: 24px;
    font-weight: bold;
    line-height: 1;
}

/* Responsive Design */
@media (max-width: 1024px) {
    .banner-content {
        flex-direction: column;
        padding: 40px 20px;
        gap: 40px;
        align-items: center;
    }
    
    .banner-left,
    .banner-right {
        max-width: 100%;
    }
    
    .banner-left {
        align-items: flex-start;
    }
    
    .platforms {
        grid-template-columns: repeat(3, 1fr);
        gap: 12px;
    }
    
    .platforms-container {
        padding: 25px 20px;
    }
    
    .promo-banner {
        padding: 20px 25px;
    }
    
    .telegram-contact {
        left: 50%;
        transform: translateX(-50%);
        bottom: 30px;
    }
    
    .policy-columns {
        grid-template-columns: 1fr;
    }
    
    .contact-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .banner {
        min-height: auto;
    }
    
    .banner-content {
        padding: 30px 15px;
        gap: 30px;
    }
    
    .banner-left,
    .banner-right {
        max-width: 100%;
        width: 100%;
    }
    
    .platforms-container {
        padding: 20px 15px;
        width: 100%;
    }
    
    .platforms {
        grid-template-columns: repeat(3, 1fr);
        gap: 10px;
    }
    
    .platform-logo {
        padding: 15px 8px;
    }
    
    .platform-logo:active {
        transform: translateY(-5px) scale(1.05);
        box-shadow: 0 8px 25px rgba(99, 102, 241, 0.4);
        border-color: rgba(99, 102, 241, 0.5);
    }
    
    .platform-logo:active::before {
        left: 100%;
    }
    
    .platform-name {
        font-size: 14px;
    }
    
    .platform-img {
        max-height: 40px;
    }
    
    .platforms-title {
        font-size: 20px;
        margin-bottom: 20px;
    }
    
    .promo-banner {
        flex-direction: row;
        text-align: left;
        padding: 15px 20px;
        gap: 12px;
        width: 100%;
    }
    
    .promo-title {
        font-size: 20px;
    }
    
    .promo-subtitle {
        font-size: 13px;
    }
    
    .promo-icon {
        font-size: 36px;
    }
    
    .promo-badge {
        padding: 10px 18px;
        font-size: 14px;
        white-space: nowrap;
    }
    
    .section-title {
        font-size: 28px;
    }
    
    .contact-grid {
        grid-template-columns: 1fr;
    }
    
    .telegram-contact {
        left: 50%;
        transform: translateX(-50%);
        bottom: 20px;
        padding: 15px 25px;
    }
    
    .tg-text {
        font-size: 18px;
    }
    
    .tg-icon {
        font-size: 28px;
    }
    
    .policy-table {
        font-size: 12px;
    }
    
    .policy-table th,
    .policy-table td {
        padding: 8px 4px;
    }
    
    .chat-section {
        padding: 35px 0;
    }
    
    .chat-button {
        padding: 25px 40px;
        gap: 12px;
    }
    
    .chat-im-img {
        max-width: 200px;
    }
    
    .chat-text-img {
        max-width: 230px;
    }
    
    .back-to-top {
        bottom: 70px;
        right: 20px;
        width: 45px;
        height: 45px;
    }
    
    .back-to-top-icon {
        font-size: 20px;
    }
}

@media (max-width: 480px) {
    .banner {
        min-height: auto;
    }
    
    .banner-content {
        padding: 20px 10px;
    }
    
    .banner-left,
    .banner-right {
        max-width: 100%;
        width: 100%;
    }
    
    .platforms-container {
        padding: 15px 10px;
        width: 100%;
    }
    
    .platforms {
        grid-template-columns: repeat(3, 1fr);
        gap: 8px;
    }
    
    .platform-logo {
        padding: 12px 6px;
    }
    
    .platform-logo:active {
        transform: translateY(-5px) scale(1.05);
        box-shadow: 0 8px 25px rgba(99, 102, 241, 0.4);
        border-color: rgba(99, 102, 241, 0.5);
    }
    
    .platform-logo:active::before {
        left: 100%;
    }
    
    .platform-name {
        font-size: 12px;
    }
    
    .platform-img {
        max-height: 35px;
    }
    
    .platforms-title {
        font-size: 18px;
    }
    
    .promo-banner {
        flex-direction: row;
        text-align: left;
        padding: 12px 15px;
        gap: 10px;
        width: 100%;
    }
    
    .promo-title {
        font-size: 18px;
    }
    
    .promo-subtitle {
        font-size: 11px;
    }
    
    .promo-icon {
        font-size: 32px;
    }
    
    .promo-badge {
        padding: 8px 15px;
        font-size: 13px;
        white-space: nowrap;
    }
    
    .telegram-contact {
        padding: 12px 20px;
        gap: 12px;
    }
    
    .tg-icon {
        font-size: 24px;
    }
    
    .tg-text {
        font-size: 16px;
    }
    
    .tg-label {
        font-size: 10px;
    }
    
    .section-title {
        font-size: 22px;
    }
    
    .card-header {
        font-size: 16px;
        padding: 15px;
    }
    
    .card-content {
        padding: 15px;
    }
    
    .policy-desc,
    .highlight-note {
        font-size: 13px;
    }
    
    .policy-notes {
        font-size: 11px;
    }
    
    .contact-item {
        padding: 20px;
    }
    
    .contact-icon {
        font-size: 36px;
    }
    
    .contact-value {
        font-size: 16px;
    }
    
    .chat-section {
        padding: 30px 0;
    }
    
    .chat-button {
        padding: 22px 35px;
        gap: 10px;
    }
    
    .chat-im-img {
        max-width: 160px;
    }
    
    .chat-text-img {
        max-width: 190px;
    }
    
    .back-to-top {
        bottom: 60px;
        right: 15px;
        width: 40px;
        height: 40px;
    }
    
    .back-to-top-icon {
        font-size: 18px;
    }
}