:root {
    --primary-color: #0088ff;
    --secondary-color: #333;
    --background-color: #1a1a1a;
    --text-color: #fff;
}

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

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, 'Open Sans', 'Helvetica Neue', sans-serif;
    background-color: var(--background-color);
    color: var(--text-color);
    line-height: 1.6;
}

/* Header Styles */
header {
    padding: 1rem 2rem;
    background-color: rgba(0, 0, 0, 0.5);
    position: fixed;
    width: 100%;
    z-index: 100;
    height: 50px;
    backdrop-filter: blur(8px);
    justify-items: center;
}

nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    max-width: 100%;
    height: 50px;
    margin: 0 auto;
  
    padding: 0 1px;
    justify-items: center;
    margin-top: -15px;
  
}

.logo {
    
    font-size: 1.5rem;
    color: var(--primary-color);
    display: flex;
    align-items: center;
    gap: 10px;
    justify-items: center;
}

.logo img {
   
    height: 40px;
    width: auto;
}

.join-btn {
    justify-items: center;
    background-color: var(--primary-color);
    color: white;
    border: none;
    padding: 8px 24px;
    border-radius: 30px;
    cursor: pointer;
    font-size: 14px;
    transition: background-color 0.3s ease;
}

.join-btn:hover {
    background-color: #0077ee;
}

/* Hero Section */
.hero {
    min-height: 100vh;
    padding: 6rem 2rem 2rem;
    text-align: center;
    position: relative;
}

.hero h1 {
    font-size: 2.5rem;
    margin-bottom: 2rem;
}

.hero-container {
    width: 90%;
    margin: 0 auto;
    padding: 2rem;
    position: relative;
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 600px;
    overflow: visible;
}

.hero-features {
    position: absolute;
    width: 100%;
    height: 100%;
    top: 0;
    left: 0;
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 800px;
    pointer-events: none;
    z-index: 2;
}

.hero-features span {
    position: absolute;
    display: block;
    padding: 8px 16px;
    background: rgba(0, 136, 255, 0.1);
    border: 1px solid var(--primary-color);
    border-radius: 20px;
    color: var(--primary-color);
    white-space: nowrap;
    transform-origin: 400px;
    animation: orbit 20s linear infinite;
    transition: all 0.3s ease;
    pointer-events: auto;
    backdrop-filter: blur(4px);
}

@keyframes orbit {
    from {
        transform: rotate(0deg) translateX(400px) rotate(0deg);
    }
    to {
        transform: rotate(360deg) translateX(400px) rotate(-360deg);
    }
}

.hero-features span:nth-child(1) { animation-delay: 0s; }
.hero-features span:nth-child(2) { animation-delay: -3.33s; }
.hero-features span:nth-child(3) { animation-delay: -6.66s; }
.hero-features span:nth-child(4) { animation-delay: -10s; }
.hero-features span:nth-child(5) { animation-delay: -13.33s; }
.hero-features span:nth-child(6) { animation-delay: -16.66s; }

.hero-features span:hover {
    background: var(--primary-color);
    color: white;
    animation-play-state: paused;
    z-index: 2;
}

.hero-image {
    height: 600px;
    max-width: 100%;
    max-height: 600px;
    margin: 0 auto;
    border-radius: 300px;
    overflow: hidden;
    position: relative;
    z-index: 0;
    cursor: pointer;
}

.hero-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transform: scale(1.1);
    transition: transform 0.6s ease-out;
}

.hero-image:hover img {
    transform: scale(1.3);
}

/* 添加悬停时的光晕效果 */
.hero-image::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: radial-gradient(circle, rgba(0,136,255,0) 0%, rgba(0,136,255,0.1) 100%);
    opacity: 0;
    transition: opacity 0.6s ease-out;
}

.hero-image:hover::after {
    opacity: 1;
}

/* Cards Section */
.cards {
    display: flex;
    justify-content: center;
    gap: 2rem;
    padding: 4rem 2rem;
    flex-wrap: wrap;
    max-width: 90%;
    margin: 0 auto;
}

.card {
    background: rgba(0, 0, 0, 0.05);
    border: 1px solid rgba(0, 136, 255, 0.1);
    border-radius: 20px;
    padding: 2rem;
    width: calc(20% - 1.6rem);
    text-align: center;
    transition: all 0.3s ease;
    backdrop-filter: blur(10px);
    cursor: pointer;
}

.card:hover {
    transform: translateY(-10px);
    background: rgba(0, 0, 0, 0.1);
    border-color: var(--primary-color);
    box-shadow: 0 10px 30px rgba(0, 136, 255, 0.1);
}

.card-icon {
    font-size: 2.5rem;
    margin-bottom: 1rem;
}

.card h3 {
    color: var(--primary-color);
    margin-bottom: 1rem;
    font-size: 1.2rem;
}

.card p {
    color: #999;
    font-size: 0.9rem;
    line-height: 1.6;
}

/* 响应式设计补充 */
@media (max-width: 768px) {
    .cards {
        padding: 2rem 1rem;
        gap: 1rem;
    }
    
    .card {
        width: calc(50% - 1rem);
        padding: 1.5rem;
    }
}

@media (max-width: 480px) {
    .card {
        width: 100%;
    }
}

@media (max-width: 1200px) {
    .card {
        width: calc(33.33% - 1.33rem);
    }
}

/* Platform Section */
.platform {
    padding: 4rem 2rem;
    text-align: center;
}

.platform-preview {
    max-width: 1000px;
    margin: 2rem auto;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.2);
    overflow: hidden;
    position: relative;
    cursor: pointer;
}

.platform-preview img {
    width: 100%;
    height: auto;
    border-radius: 10px;
    transition: transform 0.6s ease-out;
}

.platform-preview:hover img {
    transform: scale(1.05);
}

/* 添加悬停时的光效 */
.platform-preview::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(
        45deg,
        rgba(0, 136, 255, 0) 0%,
        rgba(0, 136, 255, 0.1) 50%,
        rgba(0, 136, 255, 0) 100%
    );
    opacity: 0;
    transition: opacity 0.6s ease;
}

.platform-preview:hover::after {
    opacity: 1;
}

.download-btn {
    background-color: var(--primary-color);
    color: white;
    border: none;
    padding: 1rem 2rem;
    border-radius: 30px;
    font-size: 1.1rem;
    cursor: pointer;
}

/* WeChat Section */
.wechat {
    padding: 4rem 2rem;
    text-align: center;
    position: relative;
}

.wechat-preview {
    max-width: 300px;
    margin: 2rem auto;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.2);
    cursor: pointer;
    transition: transform 0.3s ease;
    position: relative;
    z-index: 1;
    animation: glow 2s ease-in-out infinite alternate;
}

@keyframes glow {
    from {
        box-shadow: 0 0 10px rgba(0, 136, 255, 0.2),
                    0 0 20px rgba(0, 136, 255, 0.1),
                    0 0 30px rgba(0, 136, 255, 0.05);
    }
    to {
        box-shadow: 0 0 20px rgba(0, 136, 255, 0.3),
                    0 0 40px rgba(0, 136, 255, 0.2),
                    0 0 60px rgba(0, 136, 255, 0.1);
    }
}

.wechat-preview img {
    width: 100%;
    height: auto;
    border-radius: 10px;
    transition: all 0.3s ease;
    filter: brightness(1) contrast(1);
}

.wechat-preview:hover {
    transform: translateY(-5px);
    animation: none;
    box-shadow: 0 0 30px rgba(0, 136, 255, 0.4),
                0 0 60px rgba(0, 136, 255, 0.2),
                0 0 90px rgba(0, 136, 255, 0.1);
}

.wechat-preview:hover img {
    filter: brightness(1.1) contrast(1.1);
}

/* 添加光晕效果 */
.wechat-preview::before {
    content: '';
    position: absolute;
    top: -10px;
    left: -10px;
    right: -10px;
    bottom: -10px;
    background: radial-gradient(
        circle at center,
        rgba(0, 136, 255, 0.1) 0%,
        rgba(0, 136, 255, 0) 70%
    );
    border-radius: 15px;
    z-index: -1;
    opacity: 0;
    transition: opacity 0.3s ease;
}

.wechat-preview:hover::before {
    opacity: 1;
}

.tips {
    position: fixed;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    background: rgba(0, 0, 0, 0.8);
    color: white;
    padding: 20px 40px;
    border-radius: 30px;
    font-size: 1.2rem;
    opacity: 0;
    visibility: hidden;
    transition: all 0.2s ease;
    backdrop-filter: blur(8px);
    box-shadow: 0 8px 32px rgba(0, 136, 255, 0.2);
    z-index: 1000;
    border: 1px solid rgba(255, 255, 255, 0.1);
    letter-spacing: 1px;
    font-weight: 500;
    pointer-events: none;
}

.tips.show {
    opacity: 1;
    visibility: visible;
    transform: translate(-50%, -50%) scale(1);
}

/* 添加提示文本前的图标 */
.tips::before {
    content: '✓';
    display: inline-block;
    margin-right: 10px;
    font-size: 1.3em;
    color: #00ff88;
    vertical-align: middle;
}

/* Footer */
footer {
    padding: 2rem;
    background-color: rgba(0, 0, 0, 0.3);
    backdrop-filter: blur(8px);
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    position: relative;
}

.footer-content {
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    padding: 0 2rem;
    margin-bottom: 2rem;
    flex-wrap: wrap;
    gap: 2rem;
}

.footer-section {
    flex: 1;
    margin: 0 1rem;
    min-width: 200px;
}

.footer-section h4 {
    color: var(--primary-color);
    margin-bottom: 1rem;
    font-size: 1.1rem;
}

.footer-section ul {
    list-style: none;
}

.footer-section ul li {
    margin-bottom: 0.5rem;
}

.footer-section ul li a {
    color: #999;
    text-decoration: none;
    transition: color 0.3s ease;
    display: flex;
    align-items: center;
    gap: 8px;
}

.footer-section ul li a:hover {
    color: var(--primary-color);
}

.email-icon {
    font-size: 1.2em;
}

.footer-logo {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 1rem;
}

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

.footer-logo span {
    color: var(--primary-color);
    font-size: 1.2rem;
}

.copyright {
    color: #666;
    font-size: 0.9rem;
}

.footer-inner {
    text-align: center;
    height: 35px;
    padding-top: 1rem;
    margin-top: 1rem;
    border-top: 1px solid rgba(255, 255, 255, 0.05);
}

.footer-inner a {
    color: #666;
    text-decoration: none;
    font-size: 0.8rem;
    transition: color 0.3s ease;
}

.footer-inner a:hover {
    color: var(--primary-color);
}

/* 响应式设计补充 */
@media (max-width: 768px) {
    .footer-content {
        text-align: center;
        margin-bottom: 1rem;
        justify-content: center;
        padding: 0 1rem;
        gap: 1.5rem;
    }
    
    .footer-section {
        margin: 0;
        flex: 0 1 calc(50% - 1rem);
        min-width: 150px;
    }
    
    .partners-section {
        flex: 0 1 100%;
        order: -1;
    }
    
    .footer-inner {
        padding-top: 0.5rem;
        margin-top: 0.5rem;
    }
}

/* 更小屏幕的适配 */
@media (max-width: 480px) {
    .footer-section {
        flex: 0 1 100%;
    }
    
    .footer-content {
        gap: 1rem;
    }
    
    .footer-section h4 {
        margin-bottom: 0.5rem;
    }
    
    .footer-section ul li {
        margin-bottom: 0.3rem;
    }
}

/* 调整合作单位在小屏幕下的样式 */
@media (max-width: 768px) {
    .partners-list {
        width: 100%;
        max-width: 300px;
        margin: 1rem auto;
    }
    
    .partner {
        justify-content: center;
        padding: 0.3rem 0.5rem;
    }
}

/* 添加响应式设计 */
@media (max-width: 768px) {
    .hero-features {
        gap: 1rem;
        font-size: 0.9rem;
    }
    
    .hero-image {
        max-width: 100%;
    }
}

/* Partners Section */
.partners-list {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 1rem;
    margin: 0 auto;
    margin-top: 1rem;
}

.partner {
    display: flex;
    flex-direction: row;
    align-items: center;
    gap: 1rem;
    transition: transform 0.3s ease;
    width: 100%;
    justify-content: flex-start;
    padding: 0.5rem 1rem;
}

.partner:hover {
    transform: translateY(-5px);
    background: rgba(0, 136, 255, 0.05);
    border-radius: 8px;
}

.partner img {
    height: 40px;
    width: auto;
    filter: grayscale(100%) brightness(1.5);
    transition: filter 0.3s ease;
}

.partner:hover img {
    filter: grayscale(0%) brightness(1);
}

.partner span {
    color: #999;
    font-size: 0.9rem;
    transition: color 0.3s ease;
    text-align: left;
}

.partner:hover span {
    color: var(--primary-color);
}

/* 响应式设计补充 */
@media (max-width: 768px) {
    .partners-list {
        gap: 0.5rem;
    }
    
    .partners-section {
        order: -1;
        margin-bottom: 2rem;
    }
    
    .partner {
        justify-content: center;
    }
    
    .partner span {
        text-align: center;
    }
}

/* Modal Styles */
.modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.5);
    z-index: 1000;
    backdrop-filter: blur(5px);
}

.modal-content {
    position: relative;
    background: rgba(26, 26, 26, 0.95);
    margin: 5% auto;
    padding: 2rem;
    width: 90%;
    max-width: 500px;
    border-radius: 15px;
    box-shadow: 0 0 30px rgba(0, 136, 255, 0.2);
    border: 1px solid rgba(0, 136, 255, 0.1);
}

.close {
    position: absolute;
    right: 1.5rem;
    top: 1rem;
    font-size: 1.5rem;
    cursor: pointer;
    color: #666;
    transition: color 0.3s ease;
}

.close:hover {
    color: var(--primary-color);
}

.modal h2 {
    color: var(--primary-color);
    margin-bottom: 1.5rem;
    text-align: center;
}

.form-group {
    margin-bottom: 1.5rem;
}

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    color: #fff;
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 0.8rem;
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 8px;
    background: rgba(255, 255, 255, 0.05);
    color: #fff;
    transition: all 0.3s ease;
}

.form-group input:focus,
.form-group textarea:focus {
    border-color: var(--primary-color);
    outline: none;
    box-shadow: 0 0 10px rgba(0, 136, 255, 0.2);
}

.radio-group {
    display: flex;
    gap: 2rem;
    align-items: center;
}

.radio-group input[type="radio"] {
    width: auto;
    margin-right: 0.5rem;
}

.verification-group {
    display: flex;
    gap: 1rem;
}

.verification-group input {
    flex: 1;
}

#getCodeBtn {
    padding: 0.8rem 1.2rem;
    background: rgba(0, 136, 255, 0.1);
    border: 1px solid var(--primary-color);
    color: var(--primary-color);
    border-radius: 8px;
    cursor: pointer;
    transition: all 0.3s ease;
    white-space: nowrap;
}

#getCodeBtn:hover {
    background: var(--primary-color);
    color: white;
}

.submit-btn {
    width: 100%;
    padding: 1rem;
    background: var(--primary-color);
    color: white;
    border: none;
    border-radius: 8px;
    cursor: pointer;
    font-size: 1.1rem;
    transition: all 0.3s ease;
}

.submit-btn:hover {
    background: #0077ee;
    transform: translateY(-2px);
}