/* ========== 基础样式重置 ========== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', sans-serif;
    background: linear-gradient(135deg, #FF6B6B 0%, #FFD93D 25%, #6BCF7F 50%, #4D96FF 75%, #A855F7 100%);
    background-size: 400% 400%;
    animation: gradientShift 15s ease infinite;
    min-height: 100vh;
    display: flex;
    justify-content: center;
    align-items: center;
    padding: 20px;
    position: relative;
    overflow-x: hidden;
}

@keyframes gradientShift {
    0% { background-position: 0% 50%; }
    50% { background-position: 100% 50%; }
    100% { background-position: 0% 50%; }
}

.container {
    width: 100%;
    max-width: 480px;
}

.card {
    background: white;
    border-radius: 25px;
    padding: 25px 25px;
    box-shadow: 0 30px 80px rgba(0, 0, 0, 0.4);
    text-align: center;
    position: relative;
    overflow: hidden;
    opacity: 0;
    transform: scale(0.9);
    animation: cardEnter 0.6s ease forwards;
}

@keyframes cardEnter {
    to {
        opacity: 1;
        transform: scale(1);
    }
}

.card::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: linear-gradient(45deg, transparent, rgba(255, 255, 255, 0.1), transparent);
    animation: shine 3s infinite;
}

@keyframes shine {
    0% { transform: translateX(-100%) translateY(-100%) rotate(45deg); }
    100% { transform: translateX(100%) translateY(100%) rotate(45deg); }
}

/* ========== 炸裂标题区 ========== */
.hero-section {
    margin-bottom: 15px;
}

.fire-emoji {
    font-size: 35px;
    animation: bounce 1s ease infinite;
    display: inline-block;
    filter: drop-shadow(0 0 20px rgba(255, 107, 107, 0.6));
}

@keyframes bounce {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-15px); }
}

.main-title {
    font-size: 22px;
    font-weight: 900;
    background: linear-gradient(135deg, #FF6B6B, #FFD93D, #6BCF7F, #4D96FF);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin: 5px 0;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.1);
    animation: titlePulse 2s ease infinite;
}

@keyframes titlePulse {
    0%, 100% { transform: scale(1); }
    50% { transform: scale(1.05); }
}

.subtitle-box {
    display: flex;
    justify-content: center;
    gap: 5px;
    flex-wrap: wrap;
    margin: 6px 0;
}

.badge {
    background: linear-gradient(135deg, #FF6B6B, #FFD93D);
    color: white;
    padding: 5px 12px;
    border-radius: 15px;
    font-size: 12px;
    font-weight: bold;
    box-shadow: 0 4px 15px rgba(255, 107, 107, 0.4);
    animation: badgeFloat 2s ease infinite;
}

.badge:nth-child(2) {
    background: linear-gradient(135deg, #6BCF7F, #4D96FF);
    animation-delay: 0.3s;
}

@keyframes badgeFloat {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-5px); }
}

.big-text {
    font-size: 13px;
    font-weight: bold;
    color: #333;
    margin-top: 5px;
    text-shadow: 1px 1px 2px rgba(0, 0, 0, 0.1);
}

/* ========== 超大二维码区 ========== */
.qrcode-section {
    margin: 15px 0;
    position: relative;
}

.qr-glow {
    position: relative;
    display: inline-block;
    padding: 18px;
    background: linear-gradient(135deg, #FF6B6B, #FFD93D, #6BCF7F, #4D96FF);
    border-radius: 22px;
    box-shadow: 0 0 40px rgba(255, 107, 107, 0.6);
}

.qrcode-img {
    display: block;
    width: 280px;
    height: 280px;
    border-radius: 15px;
    background: white;
    padding: 14px;
}

.scan-line {
    display: none;
}

.scan-tip {
    margin-top: 12px;
    font-size: 14px;
    color: #333;
    font-weight: 600;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
}

.pulse-dot {
    width: 10px;
    height: 10px;
    background: #FF6B6B;
    border-radius: 50%;
    animation: pulseDot 1.5s ease infinite;
}

@keyframes pulseDot {
    0%, 100% {
        transform: scale(1);
        opacity: 1;
    }
    50% {
        transform: scale(1.5);
        opacity: 0.5;
    }
}

/* ========== 核心卖点 ========== */
.benefits {
    margin: 10px 0;
    display: flex;
    flex-direction: column;
    gap: 5px;
}

.benefit-item {
    background: linear-gradient(135deg, #f8f9fa, #e9ecef);
    padding: 6px 10px;
    border-radius: 8px;
    display: flex;
    align-items: center;
    gap: 6px;
    font-size: 12px;
    font-weight: 600;
    color: #333;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
    transition: transform 0.3s, box-shadow 0.3s;
}

.benefit-item:hover {
    transform: translateX(5px);
    box-shadow: 0 6px 20px rgba(0, 0, 0, 0.15);
}

.benefit-item .icon {
    font-size: 14px;
}

.benefit-item .text {
    flex: 1;
    text-align: left;
}

/* ========== 紧迫感提示 ========== */
.urgency-box {
    background: linear-gradient(135deg, #FFD93D, #FF6B6B);
    padding: 8px 10px;
    border-radius: 10px;
    margin: 10px 0;
    box-shadow: 0 8px 25px rgba(255, 107, 107, 0.4);
}

.urgency-text {
    color: white;
    font-size: 11px;
    font-weight: bold;
    text-shadow: 1px 1px 3px rgba(0, 0, 0, 0.3);
    margin: 0;
}

/* ========== 底部提示 ========== */
.footer-tip {
    margin-top: 10px;
    padding: 8px 10px;
    background: linear-gradient(135deg, #e9ecef, #f8f9fa);
    border-radius: 8px;
}

.footer-tip p {
    margin: 3px 0;
    color: #555;
    font-size: 11px;
}

.red-text {
    color: #FF6B6B;
    font-size: 13px;
}

.small-text {
    font-size: 10px;
    color: #777;
}

/* ========== 响应式适配 ========== */
@media (max-width: 480px) {
    .card {
        padding: 20px 20px;
    }

    .main-title {
        font-size: 24px;
    }

    .fire-emoji {
        font-size: 40px;
    }

    .qrcode-img {
        width: 260px;
        height: 260px;
    }

    .badge {
        font-size: 11px;
        padding: 4px 10px;
    }

    .benefit-item {
        font-size: 13px;
        padding: 8px 12px;
    }
}