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

body {
    font-family: 'PingFang SC', 'Microsoft YaHei', sans-serif;
    background: linear-gradient(135deg, #1a1a2e 0%, #16213e 50%, #0f0f23 100%);
    min-height: 100vh;
    color: #fff;
    padding: 20px;
}

.container {
    max-width: 400px;
    margin: 0 auto;
}

.header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 30px;
}

.back-btn {
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 50%;
    cursor: pointer;
}

.back-btn img {
    width: 20px;
    transform: rotate(180deg);
}

.logo-section {
    text-align: center;
    margin-bottom: 30px;
}

.logo {
    width: 80px;
    height: 80px;
    margin: 0 auto 20px;
    display: block;
}

.title {
    font-size: 28px;
    font-weight: bold;
    color: #ffd700;
    text-shadow: 0 0 20px rgba(255, 215, 0, 0.5);
    margin-bottom: 10px;
}

.subtitle {
    font-size: 14px;
    color: #888;
}

.tags {
    display: flex;
    justify-content: center;
    gap: 10px;
    margin-bottom: 30px;
}

.tag {
    padding: 6px 16px;
    background: rgba(255, 215, 0, 0.15);
    border-radius: 20px;
    font-size: 12px;
    color: #ffd700;
    display: flex;
    align-items: center;
    gap: 5px;
}

.main-card {
    background: rgba(255, 255, 255, 0.05);
    border-radius: 20px;
    padding: 25px;
    border: 1px solid rgba(255, 215, 0, 0.2);
    margin-bottom: 20px;
    text-align: center;
}

.limited-badge {
    display: inline-block;
    padding: 6px 16px;
    background: linear-gradient(135deg, #ff6b35 0%, #f7931e 100%);
    border-radius: 20px;
    font-size: 12px;
    color: #fff;
    margin-bottom: 20px;
}

.card-title {
    font-size: 20px;
    font-weight: bold;
    color: #ffd700;
    margin-bottom: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
}

.card-desc {
    font-size: 12px;
    color: #888;
    text-align: center;
    margin-bottom: 25px;
}

.btn-group {
    display: flex;
    flex-direction: column;
    gap: 15px;
}

.btn {
    padding: 16px;
    border-radius: 12px;
    font-size: 16px;
    font-weight: bold;
    border: none;
    cursor: pointer;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
}

.btn-vip {
    background: linear-gradient(135deg, #ff6b35 0%, #f7931e 100%);
    color: #fff;
    box-shadow: 0 4px 20px rgba(255, 107, 53, 0.4);
}

.btn-vip:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 30px rgba(255, 107, 53, 0.6);
}

.btn-qq {
    background: linear-gradient(135deg, #22c55e 0%, #16a34a 100%);
    color: #fff;
}

.btn-qq:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 30px rgba(34, 197, 94, 0.4);
}

.btn-info {
    background: rgba(255, 255, 255, 0.1);
    color: #ccc;
    border: 1px solid rgba(255, 255, 255, 0.2);
}

.btn-info:hover {
    background: rgba(255, 255, 255, 0.15);
}

.stats-card {
    display: flex;
    justify-content: space-around;
    background: rgba(255, 255, 255, 0.03);
    border-radius: 15px;
    padding: 20px;
}

.stat-item {
    text-align: center;
}

.stat-value {
    font-size: 28px;
    font-weight: bold;
    color: #ffd700;
}

.stat-label {
    font-size: 12px;
    color: #888;
    margin-top: 5px;
}

.progress-bar {
    display: flex;
    justify-content: space-between;
    margin-bottom: 30px;
    padding: 0 20px;
}

.progress-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    flex: 1;
    position: relative;
}

.progress-item:not(:last-child)::after {
    content: '';
    position: absolute;
    top: 12px;
    left: 50%;
    width: calc(100% + 10px);
    height: 2px;
    background: rgba(255, 255, 255, 0.2);
    z-index: -1;
}

.progress-item.active::after {
    background: linear-gradient(90deg, #ffd700, #ff6b35);
}

.progress-num {
    width: 24px;
    height: 24px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.1);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 12px;
    margin-bottom: 8px;
    border: 2px solid transparent;
}

.progress-item.active .progress-num {
    background: #ffd700;
    color: #000;
}

.progress-item.done .progress-num {
    background: #22c55e;
    color: #fff;
}

.progress-label {
    font-size: 12px;
    color: #888;
}

.progress-item.active .progress-label,
.progress-item.done .progress-label {
    color: #fff;
}

.pricing-card {
    background: rgba(255, 255, 255, 0.05);
    border-radius: 15px;
    padding: 20px;
    margin-bottom: 20px;
}

.pricing-title {
    text-align: center;
    font-size: 16px;
    color: #ffd700;
    margin-bottom: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
}

.pricing-options {
    display: flex;
    gap: 10px;
}

.pricing-option {
    flex: 1;
    background: rgba(255, 255, 255, 0.05);
    border-radius: 12px;
    padding: 15px 10px;
    text-align: center;
    cursor: pointer;
    border: 2px solid transparent;
    transition: all 0.3s ease;
}

.pricing-option:hover {
    border-color: rgba(255, 215, 0, 0.3);
}

.pricing-option.selected {
    border-color: #ffd700;
    background: rgba(255, 215, 0, 0.1);
}

.pricing-period {
    font-size: 14px;
    font-weight: bold;
    color: #fff;
    margin-bottom: 5px;
}

.pricing-duration {
    font-size: 11px;
    color: #888;
    margin-bottom: 8px;
}

.pricing-price {
    font-size: 18px;
    font-weight: bold;
    color: #ffd700;
}

.pricing-original {
    font-size: 12px;
    color: #666;
    text-decoration: line-through;
}

.payment-methods {
    background: rgba(255, 255, 255, 0.05);
    border-radius: 15px;
    padding: 20px;
    margin-bottom: 20px;
}

.payment-title {
    text-align: center;
    font-size: 14px;
    color: #888;
    margin-bottom: 15px;
}

.payment-options {
    display: flex;
    gap: 15px;
}

.payment-option {
    flex: 1;
    background: rgba(255, 255, 255, 0.05);
    border-radius: 12px;
    padding: 15px;
    text-align: center;
    cursor: pointer;
    border: 2px solid transparent;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
}

.payment-option:hover {
    border-color: rgba(255, 255, 255, 0.2);
}

.payment-option.selected {
    border-color: #ffd700;
    background: rgba(255, 215, 0, 0.1);
}

.payment-icon {
    width: 24px;
    height: 24px;
    border-radius: 50%;
}

.payment-alipay {
    background: #1677ff;
}

.payment-wechat {
    background: #22c55e;
}

.payment-label {
    font-size: 14px;
    color: #fff;
}

.payment-check {
    color: #22c55e;
}

.qr-card {
    background: rgba(255, 255, 255, 0.05);
    border-radius: 15px;
    padding: 20px;
    margin-bottom: 20px;
}

.qr-title {
    font-size: 14px;
    color: #ffd700;
    margin-bottom: 15px;
    display: flex;
    align-items: center;
    gap: 8px;
}

.qr-container {
    background: #fff;
    border-radius: 10px;
    padding: 20px;
    text-align: center;
}

.qr-image {
    width: 100%;
    max-width: 280px;
    margin: 0 auto;
    display: block;
}

.qr-note {
    font-size: 12px;
    color: #888;
    text-align: center;
    margin-top: 15px;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 5px;
}

.btn-next {
    background: linear-gradient(135deg, #ff6b35 0%, #f7931e 100%);
    color: #fff;
    width: 100%;
    padding: 18px;
    font-size: 16px;
    font-weight: bold;
    border-radius: 12px;
    border: none;
    cursor: pointer;
    margin-bottom: 15px;
}

.btn-next:hover {
    opacity: 0.9;
}

.upload-section {
    background: rgba(255, 255, 255, 0.05);
    border-radius: 15px;
    padding: 25px;
    margin-bottom: 20px;
}

.upload-title {
    font-size: 18px;
    font-weight: bold;
    color: #ffd700;
    text-align: center;
    margin-bottom: 10px;
}

.upload-desc {
    font-size: 13px;
    color: #888;
    text-align: center;
    margin-bottom: 20px;
}

.upload-area {
    border: 2px dashed rgba(255, 215, 0, 0.5);
    border-radius: 15px;
    padding: 40px 20px;
    text-align: center;
    cursor: pointer;
    display: block;
    width: 100%;
    box-sizing: border-box;
    height: 160px;
    overflow: hidden;
}

.upload-area:hover {
    border-color: #ffd700;
    background: rgba(255, 215, 0, 0.05);
}

.form-group {
    margin-bottom: 20px;
}

.form-label {
    font-size: 13px;
    color: #888;
    margin-bottom: 8px;
    display: block;
}

.form-label.required::after {
    content: ' *';
    color: #ff6b35;
}

.form-input {
    width: 100%;
    padding: 14px 16px;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 10px;
    color: #fff;
    font-size: 14px;
    outline: none;
    transition: all 0.3s ease;
}

.form-input:focus {
    border-color: #ffd700;
    background: rgba(255, 255, 255, 0.08);
}

.form-input::placeholder {
    color: #666;
}

.payment-summary {
    background: rgba(255, 255, 255, 0.05);
    border-radius: 10px;
    padding: 15px;
    margin-bottom: 20px;
    display: flex;
    align-items: center;
    gap: 10px;
}

.summary-icon {
    width: 40px;
    height: 40px;
    background: rgba(255, 215, 0, 0.1);
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #ffd700;
    font-size: 16px;
}

.summary-content {
    flex: 1;
}

.summary-row {
    font-size: 13px;
    color: #888;
    margin-bottom: 3px;
}

.summary-value {
    font-size: 14px;
    color: #ffd700;
    font-weight: bold;
}

.btn-upload {
    background: linear-gradient(135deg, #ff6b35 0%, #f7931e 100%);
    color: #fff;
    width: 100%;
    padding: 16px;
    font-size: 16px;
    font-weight: bold;
    border-radius: 12px;
    border: none;
    cursor: pointer;
    margin-bottom: 10px;
}

.btn-back {
    background: rgba(255, 255, 255, 0.1);
    color: #ccc;
    width: 100%;
    padding: 14px;
    font-size: 14px;
    border-radius: 10px;
    border: 1px solid rgba(255, 255, 255, 0.2);
    cursor: pointer;
}

.qq-card {
    background: linear-gradient(135deg, rgba(34, 197, 94, 0.1) 0%, rgba(22, 163, 74, 0.1) 100%);
    border-radius: 15px;
    padding: 25px;
    margin-bottom: 20px;
    border: 1px solid rgba(34, 197, 94, 0.3);
}

.qq-title {
    font-size: 16px;
    color: #22c55e;
    text-align: center;
    margin-bottom: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
}

.qq-group-info {
    text-align: center;
    margin-bottom: 20px;
}

.qq-group-label {
    font-size: 13px;
    color: #888;
    margin-bottom: 10px;
}

.qq-group-number {
    font-size: 24px;
    font-weight: bold;
    color: #22c55e;
    letter-spacing: 3px;
    margin-bottom: 20px;
}

.qq-qrcode {
    width: 180px;
    height: 180px;
    margin: 0 auto;
    display: block;
    border-radius: 10px;
    background: #fff;
    padding: 10px;
}

.qq-note {
    font-size: 12px;
    color: #888;
    text-align: center;
    margin-top: 15px;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 5px;
}

.divider {
    text-align: center;
    margin: 25px 0;
    color: #666;
    font-size: 12px;
    position: relative;
}

.divider::before,
.divider::after {
    content: '';
    position: absolute;
    top: 50%;
    width: 35%;
    height: 1px;
    background: rgba(255, 255, 255, 0.1);
}

.divider::before {
    left: 0;
}

.divider::after {
    right: 0;
}

.promo-card {
    background: linear-gradient(135deg, rgba(255, 215, 0, 0.1) 0%, rgba(255, 107, 53, 0.1) 100%);
    border-radius: 15px;
    padding: 25px;
    border: 1px solid rgba(255, 215, 0, 0.3);
    display: flex;
    flex-direction: column;
    align-items: center;
}

.btn-center {
    width: 100%;
    display: flex;
    justify-content: center;
}

.promo-card .btn {
    width: 280px;
    margin: 10px 0;
}

.promo-title {
    font-size: 16px;
    color: #ffd700;
    text-align: center;
    margin-bottom: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
}

.promo-desc {
    font-size: 12px;
    color: #888;
    text-align: center;
    margin-bottom: 20px;
}

.promo-arrow {
    text-align: center;
    margin-top: 15px;
    color: #ffd700;
}

input[type="file"] {
    display: none;
}

.pricing-option input[type="radio"],
.payment-option input[type="radio"] {
    display: none;
}

.pricing-option {
    cursor: pointer;
}

.payment-option {
    cursor: pointer;
}

.success-message {
    text-align: center;
    padding: 40px 10px;
}

.success-message .btn-vip {
    width: 100%;
    max-width: 360px;
    padding: 18px 30px;
    font-size: 17px;
}

.success-icon {
    width: 80px;
    height: 80px;
    background: #22c55e;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 20px;
    font-size: 40px;
    color: #fff;
}

.success-title {
    font-size: 20px;
    font-weight: bold;
    color: #fff;
    margin-bottom: 10px;
}

.success-desc {
    font-size: 14px;
    color: #888;
    margin-bottom: 30px;
}

.compare-card {
    background: rgba(255, 255, 255, 0.05);
    border-radius: 15px;
    overflow: hidden;
    margin-bottom: 20px;
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.compare-header {
    display: flex;
    background: rgba(0, 0, 0, 0.3);
    padding: 15px 10px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.compare-row {
    display: flex;
    padding: 12px 10px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

.compare-row:last-child {
    border-bottom: none;
}

.compare-item {
    flex: 1;
    text-align: center;
    font-size: 13px;
    padding: 5px 0;
}

.compare-dimension {
    color: #888;
    font-weight: 500;
}

.compare-normal {
    color: #ffd700;
    font-weight: 500;
}

.compare-vip {
    color: #22c55e;
    font-weight: 500;
}

.compare-vip.active {
    background: rgba(34, 197, 94, 0.2);
    border-radius: 8px;
}

.disclaimer-card {
    background: linear-gradient(135deg, rgba(139, 92, 246, 0.2) 0%, rgba(147, 51, 234, 0.2) 100%);
    border-radius: 15px;
    padding: 20px;
    text-align: center;
    border: 1px solid rgba(139, 92, 246, 0.3);
}

.disclaimer-icon {
    margin-bottom: 10px;
}

.disclaimer-icon i {
    font-size: 24px;
    color: #fbbf24;
}

.disclaimer-text {
    font-size: 12px;
    color: #aaa;
    margin-bottom: 5px;
}

.disclaimer-text:last-child {
    margin-bottom: 0;
}