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

body {
    font-family: 'Hiragino Sans', 'Yu Gothic Medium', sans-serif;
    line-height: 1.6;
    background: linear-gradient(135deg, #FFE082 0%, #FF8A65 50%, #FFA726 100%);
    min-height: 100vh;
}

.container {
    max-width: 800px;
    margin: 0 auto;
    padding: 20px;
}

.header {
    text-align: center;
    margin-bottom: 40px;
    animation: fadeInDown 1s ease-out;
}

.main-title {
    font-size: clamp(24px, 5vw, 42px);
    font-weight: bold;
    color: #FF6F00;
    text-shadow: 2px 2px 4px rgba(0,0,0,0.2);
    margin-bottom: 20px;
    line-height: 1.3;
}

.highlight {
    background: linear-gradient(45deg, #FFE082, #FFF59D);
    padding: 5px 10px;
    border-radius: 8px;
    display: inline-block;
    box-shadow: 0 2px 8px rgba(255,152,0,0.3);
}

.card {
    background: rgba(255,255,255,0.95);
    border-radius: 20px;
    padding: 30px;
    margin: 20px 0;
    box-shadow: 0 8px 32px rgba(255,152,0,0.3);
    backdrop-filter: blur(10px);
    border: 2px solid rgba(255,255,255,0.2);
    animation: fadeInUp 1s ease-out;
}

.subtitle {
    font-size: clamp(16px, 3vw, 24px);
    color: #E65100;
    font-weight: bold;
    margin-bottom: 15px;
    text-align: center;
}

.description {
    font-size: clamp(14px, 2.5vw, 18px);
    color: #333;
    margin-bottom: 20px;
    text-align: center;
    line-height: 1.8;
}

.phone-image {
    text-align: center;
    margin: 30px 0;
    position: relative;
}
.phone-image img {
    width: 80%;
    height: auto;
    border-radius: 10px;
}

.tap-text {
    font-size: 40px;
    padding: 6px 18px;
    border-radius: 40px;
    color: #FF6F00;
    font-weight: bold;
    position: absolute;
    top: 55%;
    right: 50%;
    background: #FFFFFF;
    transform: translate(-50%, -50%);
    animation: pop-shadow 2s infinite;
}
/* スマホ（幅600px以下）でフォントサイズを20pxにする */
@media (max-width: 600px) {
    .card .subtitle {
        font-size: 24px;
    }
    .card .main-title {
        font-size: 30px !important;
    }
    .tap-text {
        font-size: 20px;
        transform: none;
    }
}

@keyframes pop-shadow {
    0% {
        box-shadow: 0 0 0 0 rgba(255, 255, 255, 0.5);
    }
    50% {
        box-shadow: 0 0 0 10px rgba(255, 255, 255, 0);
    }
    100% {
        box-shadow: 0 0 0 0 rgba(255, 255, 255, 0);
    }
}


.phone-icon {
    font-size: 80px;
    color: #FF8A65;
    margin-bottom: 10px;
    animation: bounce 2s infinite;
}

.tap-hands {
    font-size: 40px;
    color: #FFA726;
    margin: 0 20px;
    animation: tap 1.5s infinite alternate;
}

.special-offer {
    background: linear-gradient(45deg, #FFD54F, #FFB74D);
    border-radius: 15px;
    padding: 25px;
    margin: 25px 0;
    border: 3px solid #FF8F00;
    position: relative;
    overflow: hidden;
}

.special-offer::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: linear-gradient(45deg, transparent, rgba(255,255,255,0.3), transparent);
    animation: shine 3s infinite;
}

.special-text {
    font-size: clamp(16px, 3vw, 20px);
    font-weight: bold;
    color: #BF360C;
    text-align: center;
    position: relative;
    z-index: 1;
}

.warning {
    background: #FFF3E0;
    border-left: 5px solid #FF9800;
    padding: 15px;
    margin: 20px 0;
    border-radius: 5px;
}

.warning-text {
    color: #E65100;
    font-size: 14px;
    font-weight: bold;
}

.cta-section {
    text-align: center;
    margin: 40px 0;
}

.urgent-text {
    font-size: clamp(16px, 3vw, 20px);
    color: #D84315;
    font-weight: bold;
    margin-bottom: 25px;
    animation: pulse 2s infinite;
}

.line-button {
    display: inline-block;
    background: linear-gradient(45deg, #00C851, #00E676);
    color: white;
    padding: 20px 40px;
    border-radius: 50px;
    text-decoration: none;
    font-size: clamp(18px, 4vw, 24px);
    font-weight: bold;
    box-shadow: 0 6px 20px rgba(0,200,81,0.4);
    transition: all 0.3s ease;
    border: none;
    cursor: pointer;
    position: relative;
    overflow: hidden;
}

.line-button:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 25px rgba(0,200,81,0.6);
}

.line-button::before {
    content: '📱';
    margin-right: 10px;
    font-size: 1.2em;
}

.disclaimer {
    font-size: 12px;
    color: #666;
    text-align: center;
    margin-top: 30px;
    padding: 15px;
    background: rgba(255,255,255,0.7);
    border-radius: 10px;
}

.sparkle {
    position: absolute;
    width: 20px;
    height: 20px;
    background: #FFD700;
    border-radius: 50%;
    animation: sparkle 2s infinite;
}

.sparkle:nth-child(1) { top: 10%; left: 20%; animation-delay: 0s; }
.sparkle:nth-child(2) { top: 20%; right: 15%; animation-delay: 0.5s; }
.sparkle:nth-child(3) { bottom: 30%; left: 10%; animation-delay: 1s; }
.sparkle:nth-child(4) { bottom: 10%; right: 20%; animation-delay: 1.5s; }

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

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

@keyframes bounce {
    0%, 20%, 50%, 80%, 100% {
        transform: translateY(0);
    }
    40% {
        transform: translateY(-10px);
    }
    60% {
        transform: translateY(-5px);
    }
}

@keyframes tap {
    0% {
        transform: scale(1);
    }
    100% {
        transform: scale(1.1);
    }
}

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

@keyframes pulse {
    0% {
        transform: scale(1);
    }
    50% {
        transform: scale(1.5);
    }
    100% {
        transform: scale(1);
    }
}

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

@media (max-width: 600px) {
    .container {
        padding: 15px;
    }
    
    .card {
        padding: 20px;
        margin: 15px 0;
    }
    
    .phone-icon {
        font-size: 60px;
    }
    
    .tap-hands {
        font-size: 30px;
        margin: 0 10px;
    }
}