* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Segoe UI', 'Microsoft YaHei', sans-serif;
}

@font-face {
    font-family: 'Orbitron';
    src: url('./fonts/Orbitron-Regular.ttf') format('truetype');
    font-weight: normal;
    font-style: normal;
    font-display: swap;
}

@font-face {
    font-family: 'Orbitron';
    src: url('./fonts/Orbitron-Bold.ttf') format('truetype');
    font-weight: bold;
    font-style: normal;
    font-display: swap;
}

body {
    background: linear-gradient(135deg, #1a1a1a, #2d2d2d);
    color: #ffffff;
    min-height: 100vh;
    display: flex;
    justify-content: center;
    align-items: center;
    position: relative;
    overflow: hidden;
}

body::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('./background.jpg') center center/cover no-repeat;
    z-index: 0;
}

.container {
    position: relative;
    z-index: 1;
    text-align: center;
    padding: 2rem;
    margin-bottom: 120px;
}

.content {
    background: rgba(14, 34, 46, 0.5);
    backdrop-filter: blur(18px);
    padding: 3.5rem;
    border-radius: 24px;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.15),
                inset 0 0 0 1px rgba(255, 255, 255, 0.1);
    transition: all 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
}

.content:hover {
    transform: translateY(-5px);
    box-shadow: 0 12px 40px rgba(0, 0, 0, 0.2),
                inset 0 0 0 1px rgba(255, 255, 255, 0.15);
}

.title {
    font-family: 'Orbitron', 'Segoe UI', 'Microsoft YaHei', sans-serif;
    font-size: 4.8rem;
    margin-bottom: 1rem;
    background: linear-gradient(90deg, #ffe066 10%, #ffd700 40%, #fffbe6 60%, #bfa046 90%);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    font-weight: bold;
    letter-spacing: -1px;
    position: relative;
    text-shadow:
        0 2px 12px #bfa046,
        0 4px 24px #bfa046,
        0 1px 0 #7a5c13,
        0 8px 32px rgba(191, 160, 70, 0.7),
        0 0 50px #ffd700;
    filter: drop-shadow(0 2px 12px #7a5c13);
    animation: titleGlow 3s ease-in-out infinite;
}

@keyframes titleGlow {
    0%, 100% {
        text-shadow: 0 0 30px rgba(0, 168, 255, 0.2);
    }
    50% {
        text-shadow: 0 0 40px rgba(0, 168, 255, 0.4);
    }
}

.subtitle {
    color: #e0e0e0;
    font-size: 0.9rem;
    margin: 2rem auto 3.5rem;
    line-height: 1.8;
    max-width: 700px;
    padding: 0 1.5rem;
    position: relative;
    font-weight: 400;
    letter-spacing: 0.5px;
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.2);
    background: linear-gradient(45deg, #e0e0e0, #ffffff);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.subtitle::before {
    display: none;
}

.subtitle::after {
    content: '';
    position: absolute;
    bottom: -20px;
    left: 50%;
    transform: translateX(-50%);
    width: 40px;
    height: 2px;
    background: linear-gradient(45deg, #00a8ff, #00c7b6);
    border-radius: 2px;
    opacity: 0;
}

.title::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 50%;
    transform: translateX(-50%);
    width: 70px;
    height: 5px;
    background: linear-gradient(90deg, #ffe066 10%, #ffd700 40%, #fffbe6 60%, #bfa046 90%);
    border-radius: 3px;
    box-shadow: 0 2px 12px rgba(191, 160, 70, 0.5), 0 0 8px #ffd700;
    opacity: 0.95;
}

.emoji {
    font-size: 2.5rem;
    vertical-align: middle;
}

.button-group {
    display: flex;
    gap: 1.5rem;
    justify-content: center;
    margin-top: 2rem;
    perspective: 1000px;
    flex-direction: column;
    align-items: center;
}

.download-btn {
    background: linear-gradient(45deg, #00a8ff, #00c7b6);
    border: none;
    padding: 1.2rem 3.5rem;
    font-size: 1.2rem;
    color: white;
    border-radius: 50px;
    cursor: pointer;
    transition: all 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    min-width: 240px;
    position: relative;
    overflow: hidden;
    box-shadow: 0 4px 15px rgba(0, 168, 255, 0.3);
    font-family: 'Orbitron', 'Segoe UI', 'Microsoft YaHei', sans-serif;
    font-weight: 500;
    letter-spacing: 1px;
    text-decoration: none;
    display: inline-block;
}

.download-btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(
        90deg,
        transparent,
        rgba(255, 255, 255, 0.2),
        transparent
    );
    transition: 0.5s;
}

.download-btn:hover {
    transform: scale(1.05) translateY(-5px);
    box-shadow: 0 8px 25px rgba(0, 168, 255, 0.4);
}

.download-btn:hover::before {
    left: 100%;
}

.download-btn:active {
    transform: scale(0.95) translateY(0);
}

.faq-btn {
    background: rgba(0, 168, 255, 0.15);
    border: 2px solid #00a8ff;
    padding: 1.2rem 3.5rem;
    font-size: 1.2rem;
    color: #00a8ff;
    border-radius: 50px;
    cursor: pointer;
    transition: all 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    min-width: 240px;
    backdrop-filter: blur(5px);
    box-shadow: 0 4px 15px rgba(0, 168, 255, 0.2),
                inset 0 0 0 1px rgba(255, 255, 255, 0.1);
    position: relative;
    overflow: hidden;
    font-family: 'Orbitron', 'Segoe UI', 'Microsoft YaHei', sans-serif;
    font-weight: 500;
    letter-spacing: 1px;
    text-decoration: none;
    display: inline-block;
}

.faq-btn::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
    background: rgba(0, 168, 255, 0.2);
    border-radius: 50%;
    transform: translate(-50%, -50%);
    transition: width 0.6s ease, height 0.6s ease;
}

.faq-btn:hover {
    background: rgba(0, 168, 255, 0.2);
    transform: scale(1.05) translateY(-5px);
    box-shadow: 0 8px 25px rgba(0, 168, 255, 0.25);
    border-color: #00c7b6;
    color: #00c7b6;
}

.faq-btn:hover::before {
    width: 300px;
    height: 300px;
}

.faq-btn:active {
    transform: scale(0.95) translateY(0);
}

/* 添加按钮点击波纹效果 */
@keyframes ripple {
    to {
        transform: scale(4);
        opacity: 0;
    }
}

.download-btn::after,
.faq-btn::after {
    content: '';
    position: absolute;
    width: 5px;
    height: 5px;
    background: rgba(255, 255, 255, 0.5);
    opacity: 0;
    border-radius: 100%;
    transform: scale(1, 1) translate(-50%);
    transform-origin: 50% 50%;
}

.download-btn:focus:not(:active)::after,
.faq-btn:focus:not(:active)::after {
    animation: ripple 1s ease-out;
}

/* Modal Styles */
.modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.8);
    backdrop-filter: blur(5px);
}

.modal-content {
    background: #2d2d2d;
    margin: 10% auto;
    padding: 2rem;
    width: 80%;
    max-width: 600px;
    border-radius: 20px;
    position: relative;
    animation: modalSlideIn 0.3s ease;
}

@keyframes modalSlideIn {
    from {
        transform: translateY(-100px);
        opacity: 0;
    }
    to {
        transform: translateY(0);
        opacity: 1;
    }
}

.close {
    position: absolute;
    right: 1.5rem;
    top: 1rem;
    font-size: 1.5rem;
    cursor: pointer;
    color: #888;
    transition: color 0.3s ease;
}

.close:hover {
    color: #00a8ff;
}

.faq-list {
    margin-top: 2rem;
    text-align: left;
}

.faq-item {
    margin-bottom: 1.5rem;
    padding: 1rem;
    background: rgba(255, 255, 255, 0.05);
    border-radius: 10px;
    transition: transform 0.3s ease;
}

.faq-item:hover {
    transform: translateX(10px);
}

.faq-item h3 {
    color: #00a8ff;
    margin-bottom: 0.5rem;
}

.faq-item p {
    color: #ccc;
    line-height: 1.6;
}

.footer {
    position: fixed;
    bottom: 0;
    left: 0;
    width: 100%;
    background: rgba(26, 26, 26, 0.95);
    backdrop-filter: blur(12px);
    padding: 1.2rem 0;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    box-shadow: 0 -4px 20px rgba(0, 0, 0, 0.2);
}

.footer-content {
    max-width: 800px;
    margin: 0 auto;
    text-align: center;
    padding: 0 1rem;
}

.disclaimer {
    color: #999;
    font-size: 0.9rem;
    line-height: 1.6;
    margin-bottom: 0.8rem;
    text-shadow: 0 1px 2px rgba(0, 0, 0, 0.2);
}

.contact-email {
    color: #00a8ff;
    text-decoration: none;
    font-size: 1rem;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    transition: all 0.3s ease;
    padding: 0.5rem 1rem;
    border-radius: 20px;
    background: rgba(0, 168, 255, 0.1);
}

.contact-email:hover {
    color: #00c7b6;
    background: rgba(0, 168, 255, 0.15);
    transform: translateY(-2px);
}

.copyright {
    margin-top: 2.5rem;
    color: rgba(255, 255, 255, 0.5);
    font-size: 0.9rem;
    text-align: center;
    letter-spacing: 0.5px;
    text-shadow: 0 1px 2px rgba(0, 0, 0, 0.2);
    transition: all 0.3s ease;
}

.copyright:hover {
    color: rgba(255, 255, 255, 0.7);
    transform: translateY(-2px);
}