/* ============================================
   分享有礼 - 赛博朋克风格
   ============================================ */

/* 裂变英雄区 */
.viral-hero {
    padding: 80px 20px 60px;
    max-width: 900px;
    margin: 0 auto;
    text-align: center;
    position: relative;
}

.viral-hero::before {
    content: '';
    position: absolute;
    top: 50%; left: 50%;
    transform: translate(-50%, -50%);
    width: 500px; height: 500px;
    background: radial-gradient(circle, rgba(0, 240, 255, 0.08), transparent 70%);
    pointer-events: none;
}

.viral-title {
    font-size: 48px;
    font-weight: 900;
    margin-bottom: 16px;
    background: linear-gradient(135deg, var(--neon-orange), var(--neon-pink));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.viral-subtitle {
    font-size: 16px;
    color: var(--text-secondary);
    margin-bottom: 40px;
}

/* 邀请链接 */
.invite-section {
    max-width: 600px;
    margin: 0 auto 60px;
    padding: 0 20px;
}

.invite-card-cyber {
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-lg);
    padding: 32px;
    position: relative;
    overflow: hidden;
}

.invite-card-cyber::before {
    content: '';
    position: absolute;
    top: 0; left: 0;
    width: 100%; height: 3px;
    background: linear-gradient(90deg, var(--neon-orange), var(--neon-pink), var(--neon-purple));
}

.invite-label {
    font-size: 14px;
    color: var(--text-secondary);
    margin-bottom: 12px;
}

.invite-link-row {
    display: flex;
    gap: 12px;
    margin-bottom: 20px;
}

.invite-link-input {
    flex: 1;
    padding: 12px 16px;
    background: rgba(0, 0, 0, 0.3);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-sm);
    color: var(--neon-cyan);
    font-family: 'Courier New', monospace;
    font-size: 14px;
    outline: none;
}

.invite-link-input:focus {
    border-color: var(--neon-cyan);
}

.btn-copy-link {
    padding: 12px 24px;
    background: linear-gradient(135deg, var(--neon-cyan), #0891b2);
    border: none;
    border-radius: var(--radius-sm);
    color: #000;
    font-weight: 700;
    cursor: pointer;
    transition: var(--transition);
    white-space: nowrap;
}

.btn-copy-link:hover {
    box-shadow: 0 0 30px rgba(0, 240, 255, 0.5);
}

.invite-actions {
    display: flex;
    gap: 12px;
}

.btn-invite-action {
    flex: 1;
    padding: 12px;
    background: rgba(0, 240, 255, 0.06);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-sm);
    color: var(--text-primary);
    font-size: 14px;
    cursor: pointer;
    transition: var(--transition);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
}

.btn-invite-action:hover {
    border-color: var(--neon-cyan);
    background: rgba(0, 240, 255, 0.1);
}

/* 进度 */
.progress-section {
    max-width: 600px;
    margin: 0 auto 60px;
    padding: 0 20px;
}

.progress-card-cyber {
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-lg);
    padding: 32px;
    text-align: center;
}

.progress-title {
    font-size: 18px;
    font-weight: 700;
    margin-bottom: 24px;
    color: var(--neon-cyan);
}

.progress-bar-big {
    height: 12px;
    background: rgba(255, 255, 255, 0.06);
    border-radius: 6px;
    overflow: hidden;
    margin-bottom: 12px;
}

.progress-bar-fill-big {
    height: 100%;
    background: linear-gradient(90deg, var(--neon-orange), var(--neon-pink));
    border-radius: 6px;
    transition: width 1s ease;
    position: relative;
}

.progress-bar-fill-big::after {
    content: '';
    position: absolute;
    top: 0; right: 0;
    width: 20px; height: 100%;
    background: rgba(255, 255, 255, 0.3);
    animation: progressGlow 1.5s ease-in-out infinite;
}

@keyframes progressGlow {
    0%, 100% { opacity: 0.3; }
    50% { opacity: 0.8; }
}

.progress-text {
    font-size: 14px;
    color: var(--text-secondary);
    margin-bottom: 24px;
}

.progress-text strong {
    color: var(--neon-orange);
    font-size: 18px;
}

/* 奖励阶梯 */
.rewards-section {
    padding: 60px 20px;
    max-width: 1200px;
    margin: 0 auto;
}

.rewards-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 24px;
    margin-top: 30px;
}

.reward-card-cyber {
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-lg);
    padding: 32px;
    text-align: center;
    position: relative;
    overflow: hidden;
    transition: var(--transition);
}

.reward-card-cyber:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow-neon);
}

.reward-card-cyber.locked {
    opacity: 0.6;
    filter: blur(2px);
    transition: all 0.3s ease;
}

.reward-card-cyber.locked::after {
    content: '🔒';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    font-size: 48px;
    z-index: 2;
    filter: blur(0); /* 保持🔒图标清晰 */
}

.reward-card-cyber.locked:hover {
    filter: blur(0);
    opacity: 1;
}

.reward-level {
    position: absolute;
    top: 16px; left: 16px;
    padding: 4px 12px;
    border-radius: 20px;
    font-size: 12px;
    font-weight: 700;
}

.reward-level.lv1 {
    background: rgba(0, 255, 136, 0.15);
    color: var(--neon-green);
    border: 1px solid rgba(0, 255, 136, 0.3);
}

.reward-level.lv2 {
    background: rgba(0, 240, 255, 0.15);
    color: var(--neon-cyan);
    border: 1px solid rgba(0, 240, 255, 0.3);
}

.reward-level.lv3 {
    background: rgba(255, 230, 0, 0.15);
    color: var(--neon-yellow);
    border: 1px solid rgba(255, 230, 0, 0.3);
}

.reward-icon {
    font-size: 56px;
    margin-bottom: 16px;
    display: block;
}

.reward-card-cyber h3 {
    font-size: 20px;
    font-weight: 800;
    margin-bottom: 10px;
}

.reward-desc {
    font-size: 14px;
    color: var(--text-secondary);
    margin-bottom: 16px;
    line-height: 1.6;
}

.reward-requirement {
    font-size: 13px;
    color: var(--neon-orange);
    font-weight: 600;
}

/* 排行榜 */
.share-ranking-section {
    padding: 60px 20px;
    max-width: 800px;
    margin: 0 auto;
}

.share-ranking-card {
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-lg);
    padding: 32px;
}

.share-ranking-header {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 24px;
    font-size: 18px;
    font-weight: 700;
    color: var(--neon-cyan);
}

.share-ranking-list { }

.share-rank-item {
    display: flex;
    align-items: center;
    gap: 16px;
    padding: 14px 0;
    border-bottom: 1px solid rgba(255, 255, 255, 0.03);
}

.share-rank-item:last-child { border-bottom: none; }

.share-rank-num {
    width: 32px; height: 32px;
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 14px;
    font-weight: 800;
}

.share-rank-num.top1 {
    background: linear-gradient(135deg, #ffd700, #ffaa00);
    color: #000;
}

.share-rank-num.top2 {
    background: linear-gradient(135deg, #c0c0c0, #a0a0a0);
    color: #000;
}

.share-rank-num.top3 {
    background: linear-gradient(135deg, #cd7f32, #a0522d);
    color: #fff;
}

.share-rank-num.normal {
    background: rgba(255, 255, 255, 0.06);
    color: var(--text-secondary);
}

.share-rank-avatar {
    width: 40px; height: 40px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 18px;
    flex-shrink: 0;
}

.share-rank-info { flex: 1; }

.share-rank-name {
    font-size: 15px;
    font-weight: 600;
    margin-bottom: 2px;
}

.share-rank-school {
    font-size: 12px;
    color: var(--text-secondary);
}

.share-rank-count {
    font-size: 12px;
    color: var(--text-secondary);
}

.share-rank-value {
    font-size: 15px;
    font-weight: 700;
    color: var(--neon-cyan);
}

/* 海报弹窗 */
.poster-modal-cyber {
    position: fixed;
    top: 0; left: 0;
    width: 100%; height: 100%;
    background: rgba(0, 0, 0, 0.8);
    backdrop-filter: blur(12px);
    display: none;
    align-items: center;
    justify-content: center;
    z-index: 9999;
}

.poster-modal-cyber.active { display: flex; }

.poster-content-cyber {
    background: var(--cyber-bg-2);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-lg);
    padding: 32px;
    max-width: 400px;
    width: 90%;
    text-align: center;
    position: relative;
}

.poster-preview {
    width: 100%;
    aspect-ratio: 3/4;
    background: linear-gradient(135deg, var(--cyber-bg), var(--cyber-bg-2));
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-md);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 16px;
    margin-bottom: 20px;
    padding: 20px;
}

.poster-preview .poster-title {
    font-size: 24px;
    font-weight: 900;
    background: linear-gradient(135deg, var(--neon-cyan), var(--neon-purple));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.poster-preview .poster-qr {
    width: 100px; height: 100px;
    background: rgba(255, 255, 255, 0.9);
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 12px;
    color: #000;
}

.btn-save-poster {
    width: 100%;
    padding: 12px;
    background: linear-gradient(135deg, var(--neon-cyan), #0891b2);
    border: none;
    border-radius: var(--radius-sm);
    color: #000;
    font-weight: 700;
    cursor: pointer;
    transition: var(--transition);
}

.btn-save-poster:hover {
    box-shadow: 0 0 30px rgba(0, 240, 255, 0.5);
}

/* 注册弹窗 */
.modal-overlay-cyber {
    position: fixed;
    top: 0; left: 0;
    width: 100%; height: 100%;
    background: rgba(0, 0, 0, 0.8);
    backdrop-filter: blur(12px);
    display: none;
    align-items: center;
    justify-content: center;
    z-index: 9999;
}

.modal-overlay-cyber.active { display: flex; }

.modal-content-cyber {
    background: var(--cyber-bg-2);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-lg);
    padding: 32px;
    max-width: 400px;
    width: 90%;
    text-align: center;
    position: relative;
}

.modal-close-cyber {
    position: absolute;
    top: 16px; right: 16px;
    background: none;
    border: none;
    color: var(--text-secondary);
    font-size: 24px;
    cursor: pointer;
    transition: var(--transition);
}

.modal-close-cyber:hover {
    color: var(--neon-cyan);
}

.modal-content-cyber input:focus {
    border-color: var(--neon-cyan) !important;
    box-shadow: 0 0 10px rgba(0, 240, 255, 0.3);
}

@media (max-width: 768px) {
    .viral-title { font-size: 32px; }
    .rewards-grid { grid-template-columns: 1fr; }
    .invite-link-row { flex-direction: column; }
    .invite-actions { flex-direction: column; }
}