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

html, body {
    height: 100%;
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
    background: #000;
    color: #fff;
    overflow-x: hidden;
}

/* 导航栏 */
nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 24px 48px;
    z-index: 100;
    background: rgba(0, 0, 0, 0.6);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid rgba(255, 255, 255, 0.06);
}

.nav-brand {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 16px;
    font-weight: 600;
    letter-spacing: 0.5px;
}

.nav-brand img {
    width: 28px;
    height: 28px;
}

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

.nav-link {
    padding: 8px 20px;
    color: rgba(255, 255, 255, 0.6);
    text-decoration: none;
    font-size: 14px;
    font-weight: 500;
    border-radius: 999px;
    transition: all 0.3s ease;
}

.nav-link:hover {
    color: #fff;
    background: rgba(255, 255, 255, 0.08);
}

.nav-link.active {
    color: #000;
    background: #fff;
    font-weight: 600;
}

/* 主内容区 */
main {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    text-align: center;
    padding: 120px 24px 80px;
    position: relative;
}

/* 背景光晕 */
.glow {
    position: absolute;
    width: 600px;
    height: 600px;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(180, 255, 240, 0.08) 0%, transparent 70%);
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    pointer-events: none;
    animation: pulse 6s ease-in-out infinite;
    transition: transform 0.3s ease-out;
}

@keyframes pulse {
    0%, 100% { opacity: 0.6; }
    50% { opacity: 1; }
}

h1 {
    font-size: clamp(40px, 6vw, 72px);
    font-weight: 700;
    letter-spacing: -2px;
    line-height: 1.1;
    margin-bottom: 12px;
    background: linear-gradient(180deg, #ffffff 0%, #a0e8d8 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    opacity: 0;
    transform: translateY(20px);
    animation: fadeInUp 1s ease forwards;
    animation-delay: 0.1s;
}

.subtitle {
    font-size: clamp(16px, 2vw, 22px);
    font-weight: 300;
    color: rgba(255, 255, 255, 0.5);
    letter-spacing: 4px;
    margin-bottom: 48px;
    opacity: 0;
    transform: translateY(20px);
    animation: fadeInUp 1s ease forwards;
    animation-delay: 0.25s;
}

@keyframes fadeInUp {
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* 联系卡片列表 */
.contact-list {
    display: flex;
    flex-direction: column;
    gap: 20px;
    width: 100%;
    max-width: 560px;
}

.contact-card {
    display: flex;
    align-items: flex-start;
    gap: 20px;
    padding: 28px;
    background: rgba(255, 255, 255, 0.04);
    border: 1px solid rgba(255, 255, 255, 0.08);
    border-radius: 20px;
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    text-align: left;
    opacity: 0;
    transform: translateY(20px);
    animation: fadeInUp 0.8s ease forwards;
    transition: all 0.3s ease;
}

.contact-card:nth-child(1) {
    animation-delay: 0.4s;
}

.contact-card:nth-child(2) {
    animation-delay: 0.55s;
}

.contact-card:hover {
    background: rgba(255, 255, 255, 0.07);
    border-color: rgba(160, 232, 216, 0.2);
    transform: translateY(-2px);
}

.contact-avatar {
    width: 56px;
    height: 56px;
    border-radius: 16px;
    object-fit: cover;
    flex-shrink: 0;
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.contact-info {
    flex: 1;
    min-width: 0;
}

.contact-name {
    font-size: 18px;
    font-weight: 600;
    margin-bottom: 12px;
    display: flex;
    align-items: center;
    gap: 10px;
    flex-wrap: wrap;
}

.contact-role {
    font-size: 12px;
    font-weight: 400;
    color: rgba(255, 255, 255, 0.5);
    background: rgba(255, 255, 255, 0.08);
    padding: 3px 10px;
    border-radius: 6px;
}

.contact-wechat {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 8px;
    font-size: 14px;
}

.contact-wechat:last-child {
    margin-bottom: 0;
}

.wx-label {
    font-size: 11px;
    color: rgba(255, 255, 255, 0.4);
    background: rgba(255, 255, 255, 0.08);
    padding: 2px 8px;
    border-radius: 4px;
    flex-shrink: 0;
}

.wx-text {
    color: rgba(255, 255, 255, 0.8);
    flex: 1;
}

.wx-id {
    font-family: "SF Mono", "Consolas", monospace;
    color: #a0e8d8;
    flex: 1;
}

.wx-copy {
    font-size: 12px;
    color: rgba(255, 255, 255, 0.6);
    cursor: pointer;
    padding: 4px 12px;
    border-radius: 6px;
    background: rgba(255, 255, 255, 0.08);
    transition: all 0.2s ease;
    flex-shrink: 0;
    user-select: none;
}

.wx-copy:hover {
    background: rgba(255, 255, 255, 0.15);
    color: #fff;
}

.wx-copy.copied {
    background: #a0e8d8;
    color: #000;
}

/* 打赏区域 */
.donate-section {
    margin-top: 40px;
    padding: 32px;
    background: rgba(255, 255, 255, 0.04);
    border: 1px solid rgba(255, 255, 255, 0.08);
    border-radius: 20px;
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    text-align: center;
    max-width: 560px;
    width: 100%;
    opacity: 0;
    transform: translateY(20px);
    animation: fadeInUp 0.8s ease forwards;
    animation-delay: 0.7s;
}

.donate-text {
    font-size: 18px;
    font-weight: 600;
    color: #fff;
    line-height: 1.6;
    margin-bottom: 20px;
}

.donate-sub {
    font-size: 13px;
    font-weight: 400;
    color: rgba(255, 255, 255, 0.5);
}

.donate-qr {
    width: 180px;
    height: 180px;
    border-radius: 12px;
    object-fit: cover;
    border: 1px solid rgba(255, 255, 255, 0.1);
}

/* 成为开发者 */
.dev-section {
    margin-top: 20px;
    padding: 32px;
    background: rgba(160, 232, 216, 0.05);
    border: 1px solid rgba(160, 232, 216, 0.15);
    border-radius: 20px;
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    text-align: center;
    max-width: 560px;
    width: 100%;
    opacity: 0;
    transform: translateY(20px);
    animation: fadeInUp 0.8s ease forwards;
    animation-delay: 0.85s;
}

.dev-title {
    font-size: 22px;
    font-weight: 700;
    margin-bottom: 10px;
    background: linear-gradient(180deg, #ffffff 0%, #a0e8d8 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.dev-desc {
    font-size: 14px;
    color: rgba(255, 255, 255, 0.6);
    margin-bottom: 20px;
    line-height: 1.6;
}

.dev-contact {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 10px 16px;
    background: rgba(255, 255, 255, 0.05);
    border-radius: 10px;
    font-size: 14px;
}

/* 页脚 */
footer {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    text-align: center;
    padding: 20px;
    font-size: 13px;
    color: rgba(255, 255, 255, 0.35);
    letter-spacing: 0.5px;
    background: rgba(0, 0, 0, 0.6);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
}

/* 响应式 */
@media (max-width: 640px) {
    nav {
        padding: 16px 20px;
    }
    .nav-brand span {
        display: none;
    }
    .nav-link {
        padding: 6px 14px;
        font-size: 13px;
    }
    .contact-card {
        padding: 20px;
        gap: 14px;
    }
    .contact-avatar {
        width: 44px;
        height: 44px;
        border-radius: 12px;
    }
    .contact-name {
        font-size: 16px;
    }
}