:root {
    --main-blue: #003366;
    --highlight-green: #2f4f4f;
    --highlight-yellow: rgb(255, 204, 0);
    --soft-white: #ffffff;
    --muted-gray: #cbd5e1;
}

body {
    margin: 0;
    font-family: Arial, Helvetica, sans-serif;
    background: var(--main-blue);
    color: var(--soft-white);
    text-align: center;
    padding-bottom: 50px;
    line-height: 1.7;
}

/* 顶部介绍区 */
.hero-block {
    background: var(--main-blue);
    padding: 10px 20px 40px;
}

.hero-block img.logo {
    width: 320px;
    margin-bottom:15px;
}

.hero-block p.intro-text {
    max-width: 750px;
    margin: 15px auto 10px;
    color: var(--muted-gray);
    font-size: 1.1rem;
}



.main{width:640px; margin: 0 auto 0;}
@media (max-width:767px){
    .main{width: 100%;}
}

/* 用户展示 */
.profile-showcase {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: 16px;
    margin: 10px 0;
}

.profile-showcase img {
    width: 250px;
    border-radius: 6px;
    transform: scale(1.08);
    transition: transform 0.25s ease;
    cursor: pointer;
}

.profile-showcase img:hover {
    transform: scale(1.28);
}

/* 倒计时模块 */
.timer-section {
    margin: 20px auto;
    max-width: 480px;
    border: 2px solid var(--highlight-yellow);
    border-radius: 10px;
    box-shadow: 0 0 18px rgba(255, 204, 0, 0.45);
    background: rgba(0, 0, 0, 0.4);
    padding: 20px;
}

.timer-title {
    font-weight: 700;
    color: var(--highlight-yellow);
    font-size: 1.25rem;
    margin-bottom: 15px;
}

.time-display {
    display: flex;
    justify-content: center;
    gap: 20px;
}

.time-unit {
    text-align: center;
}

.time-value {
    background: #1b1b2f;
    padding: 12px 10px;
    border-radius: 6px;
    font-size: 2rem;
    font-weight: bold;
    min-width: 70px;
    box-shadow: 0 5px 12px rgba(0, 0, 0, 0.3);
}

.time-label {
    font-size: 0.85rem;
    margin-top: 5px;
    text-transform: uppercase;
}

/* 注册按钮 */
.cta-area {
    margin: 15px auto;
    padding: 0 15px;
}

.cta-btn {
    width: 100%;
    max-width: 500px;
    padding: 18px 25px;
    border: none;
    border-radius: 8px;
    background: var(--highlight-green);
    color: var(--soft-white);
    font-weight: bold;
    font-size: 1rem;
    cursor: pointer;
    transition: background 0.3s ease;
}

.cta-btn:hover {
    background: #1ebe5d;
}

/* 底部浮动按钮 */
.floating-join {
    position: fixed;
    bottom: 0;
    left: 0;
    width: 100%;
    background: var(--highlight-green);
    color: #fff;
    padding: 18px 0;
    font-size: 18px;
    font-weight: 700;
    text-align: center;
    cursor: pointer;
    box-shadow: 0 -2px 8px rgba(0,0,0,0.25);
    z-index: 999;
    transition: background 0.3s ease;
}

.floating-join:hover {
    background: #1ebe5d;
}

h1.main-heading {
    font-size: 2rem;
    font-weight: bold;
    margin: 30px auto 15px;
    line-height: 1.2;
}

p.description {
    max-width: 700px;
    margin: 0 auto;
    color: var(--muted-gray);
    font-size: 1.1rem;
    line-height: 1.6;
}

@media (max-width: 768px) {
    .hero-block {
        padding: 50px 10px 20px;
    }
    .hero-block img.logo {
        width: 360px;
    }
    .time-value {
        font-size: 1.5rem;
        min-width: 55px;
    }
}

  
  .profile-showcase {
      display: flex;
      justify-content: center;
      flex-wrap: wrap;
      gap: 16px;
      margin: 7px 0;
  }

.profile-frame {
    border: 3px solid rgba(255, 255, 255, 0.8); /* 白色半透明边框 */
    border-radius: 50%; /* 圆角 */
    padding: 6px;
    overflow: hidden;
    box-shadow: 0 0 12px rgba(255, 255, 255, 0.2);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.profile-frame:hover {
    transform: scale(1.05);
    box-shadow: 0 0 20px rgba(255, 255, 255, 0.4);
}

.profile-frame img {
    width:150px;
    display: block;
    border-radius: 15px;
    object-fit: cover;
}
.cta-area {
    display: flex;
    justify-content: center;
    margin: 30px 0;
}

.cta-btn {
    padding: 18px 28px;
    font-size: 18px;
    font-weight: bold;
    background: linear-gradient(145deg, #25D366, #1ebe5d);
    color: #fff;
    border: none;
    border-radius: 10px;
    cursor: pointer;
    box-shadow: 0 6px 15px rgba(0, 0, 0, 0.3);
    transition: background 0.3s, transform 0.2s, box-shadow 0.2s;
    animation: pulseButton 2s infinite ease-in-out;
}

.cta-btn:hover {
    background: linear-gradient(145deg, #1ebe5d, #25D366);
    box-shadow: 0 8px 18px rgba(0, 0, 0, 0.4);
}

/* 持续跳动动画 */
@keyframes pulseButton {
    0% {
        transform: scale(1);
        box-shadow: 0 0 15px rgba(37, 211, 102, 0.3);
    }
    50% {
        transform: scale(1.08);
        box-shadow: 0 0 25px rgba(37, 211, 102, 0.6);
    }
    100% {
        transform: scale(1);
        box-shadow: 0 0 15px rgba(37, 211, 102, 0.3);
    }
}