* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: "PingFangSC-Regular", sans-serif;
}

@font-face {
    font-family: "PingFangSC-Regular";
    src: url("../fonts/PingFangSC-Regular.otf") format("opentype");
    font-weight: normal;
    font-style: normal;
    font-display: block;
}

@font-face {
    font-family: "PingFangSC-Medium";
    src: url("../fonts/PingFangSC-Medium.otf") format("opentype");
    font-weight: 500;
    font-style: normal;
    font-display: block;
}

@font-face {
    font-family: "PingFangSC-Semibold";
    src: url("../fonts/PingFangSC-Semibold.otf") format("opentype");
    font-weight: 600;
    font-style: normal;
    font-display: block;
}



/* 网页背景 */
body {
    background-color: #ffffff;
    min-height: 100vh;
    overflow-x: hidden;
    position: relative;
    background: url('../images/wave-bg.png') no-repeat center center;
    background-size: cover;
    background-attachment: fixed;
}

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

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.fadeIn {
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 0.6s cubic-bezier(0.4, 0, 0.2, 1), transform 0.6s cubic-bezier(0.4, 0, 0.2, 1);
}

.fadeIn.active {
    opacity: 1;
    transform: translateY(0);
}

/* 波浪背景效果 */
.wave-background {
    display: none;
}

/* 顶部导航 */
.navbar {
    padding: 20px 40px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    font-size: 32px;
    color: #40C4C0;
    font-family: "PingFangSC-Semibold", sans-serif;
    text-decoration: none;
    display: block;
    cursor: default;
}

/* 主内容区域 */
.main-content {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding-top: 80px;
    text-align: center;
}

.title {
    font-size: 82px;
    color: #40C4C0;
    font-family: "PingFangSC-Semibold", sans-serif;
    margin-bottom: 20px;
    user-select: none;
}

.subtitle {
    font-size: 32px;
    font-family: "PingFangSC-Medium", sans-serif;
    color: #40C4C0;
    margin-bottom: 60px;
    user-select: none;
}

/* 申请体验按钮 */
.apply-button {
    background: url('../images/font-bg.png') center/contain no-repeat;
    color: #ffffff;
    border: none;
    border-radius: 0;
    padding: 35px 90px;
    font-size: 22px;
    font-family: "PingFangSC-Medium", sans-serif;
    cursor: pointer;
    transition: transform 0.3s ease;
    box-shadow: none;
    user-select: none;
}

.apply-button:hover {
    transform: scale(1.05);
    box-shadow: none;
}

.apply-description {
    margin-top: 25px;
    font-size: 14px;
    color: #666;
    max-width: 500px;
    line-height: 1.6;
}

/* 底部社交图标 */
.social-icons {
    position: absolute;
    bottom: 40px;
    left: 40px;
    display: flex;
    gap: 18px;
}

.social-icon {
    width: 50px;
    height: 50px;
    background-color: rgba(255, 255, 255, 0.9);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: all 0.3s ease;
    box-shadow: 0 3px 8px rgba(64, 196, 192, 0.2);
    border: 1px solid rgba(64, 196, 192, 0.3);
}

.social-icon img {
    width: 30px;
    height: 30px;
    filter: drop-shadow(0 1px 2px rgba(0, 0, 0, 0.1));
}

.social-icon:hover {
    transform: translateY(-3px);
    box-shadow: 0 6px 15px rgba(64, 196, 192, 0.3);
    background-color: rgba(237, 250, 250, 0.9);
}

/* 申请表单弹窗 */
.modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.5);
    z-index: 1000;
    justify-content: center;
    align-items: center;
    opacity: 0;
    transition: opacity 0.3s ease;
}

.modal.active {
    opacity: 1;
}

.modal-content {
    background-color: white;
    padding: 30px;
    border-radius: 15px;
    width: 450px;
    max-width: 90%;
    box-shadow: 0 5px 20px rgba(64, 196, 192, 0.2);
    position: relative;
    transform: translateY(-20px);
    transition: transform 0.3s ease;
}

.modal.active .modal-content {
    transform: translateY(0);
}

.close-modal {
    position: absolute;
    top: 15px;
    right: 15px;
    font-size: 22px;
    cursor: pointer;
    color: #40C4C0;
}

.form-title {
    font-size: 20px;
    color: #40C4C0;
    margin-bottom: 25px;
    text-align: center;
    font-family: "PingFangSC-Medium", sans-serif;
}

.form-group {
    margin-bottom: 20px;
}

.form-label {
    display: block;
    margin-bottom: 8px;
    font-size: 14px;
    color: #40C4C0;
}

.form-input {
    width: 100%;
    padding: 12px 15px;
    border: 1px solid #ddd;
    border-radius: 8px;
    font-size: 14px;
    transition: border 0.3s ease;
}

.form-input:focus {
    border-color: #40C4C0;
    outline: none;
}

.radio-group, .checkbox-group {
    display: flex;
    flex-wrap: wrap;
    gap: 15px;
    margin-top: 10px;
}

.radio-item, .checkbox-item {
    display: flex;
    align-items: center;
    gap: 5px;
}

.submit-button {
    width: 100%;
    background-color: #40C4C0;
    color: white;
    border: none;
    border-radius: 8px;
    padding: 12px;
    font-size: 16px;
    font-family: "PingFangSC-Medium", sans-serif;
    cursor: pointer;
    margin-top: 10px;
    transition: all 0.3s ease;
}

.submit-button:hover {
    background-color: #36aaa6;
}

/* 响应式设计 */
@media (max-width: 768px) {
    .title {
        font-size: 42px;
    }
    
    .subtitle {
        font-size: 18px;
        margin-bottom: 40px;
    }
    
    .apply-button {
        padding: 12px 35px;
        font-size: 16px;
    }
    
    .social-icons {
        bottom: 20px;
        left: 20px;
    }
    
    .social-icon {
        width: 35px;
        height: 35px;
    }
}

/* LOGO尺寸 */
.logo img {
    height: 60px;
}

/* 申请体验文字卡片 */
.apply-card {
    background-color: rgba(255, 255, 255, 0.9);
    border-radius: 15px;
    padding: 30px 40px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
    margin-top: 20px;
    cursor: pointer;
    transition: all 0.3s ease;
    min-width: 300px;
    max-width: 90%;
}

.apply-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.15);
}

.apply-card h3 {
    font-size: 28px;
    color: #40C4C0;
    margin-bottom: 15px;
    font-family: "PingFangSC-Medium", sans-serif;
    user-select: none;
}

.apply-card p {
    font-size: 16px;
    color: #40C4C0;
    line-height: 1.6;
    font-family: "PingFangSC-Regular", sans-serif;
    user-select: none;
}