.start-hero {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    text-align: center;
    padding: 2rem;
    background-color: #ffffff;
}

.start-hero-content {
    width: 100%;
    max-width: 800px;
    margin: 0 auto;
}

.main-content {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
}

.troll-icon {
    margin-bottom: 1.5rem;
    display: flex;
    justify-content: center;
}

.troll-icon img {
    border-radius: 22px;
    width: 100px;
    height: 100px;
}

.start-hero h1 {
    font-size: 2.5rem;
    margin-bottom: 1rem;
    color: #333;
}

.start-hero p {
    font-size: 1.25rem;
    line-height: 1.6;
    color: #666;
    margin-bottom: 2rem;
}

.warning-message {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 12px 20px;
    background-color: rgba(255, 59, 48, 0.1);
    border-radius: 12px;
    margin-bottom: 2rem;
    color: #ff3b30;
    font-size: 0.95rem;
}

.warning-icon {
    fill: #ff3b30;
    flex-shrink: 0;
}

.start-buttons {
    display: flex;
    justify-content: center;
    margin-top: 2rem;
}

.start-btn {
    padding: 0.8rem 2rem;
    border-radius: 100px;
    font-size: 1rem;
    font-weight: 600;
    text-decoration: none;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    transform: scale(1);
    border: none;
    cursor: pointer;
}

.start-btn-primary {
    background-color: #000;
    color: white;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
}

.start-btn-primary:hover {
    background-color: #333;
    transform: scale(1.05);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.2);
}

.next-icon {
    fill: currentColor;
    margin-left: 4px;
    width: 20px;
    height: 20px;
    transition: transform 0.3s ease;
}

.start-btn:hover .next-icon {
    transform: translateX(4px);
}

/* 步骤样式 */
.steps-container {
    width: 100%;
    max-width: 600px;
    margin: 0 auto;
    padding: 1.5rem;
}

.step-content {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.step-header {
    margin-bottom: 1.2rem;
}

.title-container {
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.title-container h2 {
    font-size: 1.4rem;
    color: #000;
    margin: 0;
    font-weight: 600;
}

.step-number {
    display: flex;
    align-items: center;
    font-size: 0.9rem;
    color: #666;
}

.step-circle {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 20px;
    height: 20px;
    background-color: #000;
    color: white;
    border-radius: 50%;
    margin-left: 6px;
    font-weight: 500;
    font-size: 0.85rem;
}

.step-details {
    text-align: left;
}

.step-details p {
    margin: 0.6rem 0;
    font-size: 0.9rem;
    color: #000;
    line-height: 1.5;
}

.text-gray {
    color: #666;
}

.text-orange {
    color: #FF6B00;
}

.settings-note {
    margin-top: 0.8rem;
    color: #666;
    font-size: 0.85rem;
}

.step-image {
    margin-bottom: 1.5rem;
    border-radius: 8px;
    overflow: hidden;
}

.step-img {
    width: 100%;
    max-width: 500px;
    height: auto;
    display: block;
    margin: 0 auto;
}

.step-navigation {
    display: flex;
    justify-content: space-between;
    margin-top: 2rem;
    padding-top: 1.5rem;
    border-top: 1px solid #eee;
    gap: 1rem;
}

.nav-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 8px 20px;
    border-radius: 100px;
    font-size: 0.9rem;
    font-weight: 500;
    text-decoration: none;
    transition: all 0.3s ease;
    border: none;
    cursor: pointer;
    background-color: #000;
    color: white;
    gap: 6px;
    width: 110px;
    height: 36px;
    white-space: nowrap;
}

.nav-btn:not(:disabled):hover {
    background-color: #333;
    transform: scale(1.05);
}

.nav-btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

.nav-icon {
    width: 20px;
    height: 20px;
    display: inline-block;
    vertical-align: middle;
    flex-shrink: 0;
}

.prev-btn {
    padding-left: 16px;
}

.prev-btn .nav-icon {
    margin-right: 2px;
}

.next-btn {
    padding-right: 16px;
}

.next-btn .nav-icon {
    margin-left: 2px;
}

.main-content,
.steps-container {
    opacity: 1;
    visibility: visible;
    transition: opacity 0.3s ease, visibility 0.3s ease;
}

.main-content.hidden,
.steps-container.hidden {
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.3s ease, visibility 0.3s ease;
}

.step-content {
    opacity: 1;
    visibility: visible;
    transition: opacity 0.3s ease, visibility 0.3s ease;
}

.step-content.fade-out {
    opacity: 0;
    visibility: hidden;
}

.feature-highlight {
    background-color: #f8f9fa;
    border-radius: 12px;
    padding: 1.2rem;
    margin-top: 1.5rem;
}

.feature-highlight h3 {
    font-size: 1rem;
    color: #333;
    margin: 0 0 0.8rem 0;
}

.feature-benefit {
    color: #555;
    margin-bottom: 0.5rem;
}

.feature-highlight ul {
    margin: 0.5rem 0;
    padding-left: 1.2rem;
    list-style-type: none;
}

.feature-highlight li {
    color: #666;
    font-size: 0.9rem;
    margin: 0.4rem 0;
    position: relative;
}

.feature-highlight li::before {
    content: "•";
    color: #007AFF;
    position: absolute;
    left: -1rem;
}

.feature-warning {
    color: #ff3b30;
    font-size: 0.9rem;
    margin-top: 1rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.warning-icon-small {
    font-size: 1rem;
}

.warning-text {
    color: #ff3b30;
    font-weight: 500;
    margin: 0.3rem 0;
}

.warning-text:last-child {
    margin-bottom: 1rem;
}

.troll-complete-icon {
    width: 120px;
    height: 120px;
    border-radius: 22px;
    margin: 0 auto;
}

.complete-text {
    font-size: 1.2rem;
    color: #333;
    text-align: center;
    margin: 2rem 0;
}

#confetti-canvas {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: 9999;
}

.purekfd-section {
    margin-top: 20px;
    padding: 15px 0;
    border-top: 1px solid #eee;
}

.purekfd-title {
    font-weight: 600;
    margin-bottom: 10px;
}

.purekfd-links {
    display: flex;
    flex-direction: column;
    gap: 8px;
    margin-top: 12px;
}

.purekfd-link {
    display: inline-block;
    padding: 8px 12px;
    background-color: #007AFF;
    color: white;
    border-radius: 6px;
    text-decoration: none;
    font-weight: 500;
    transition: all 0.2s ease;
}

.purekfd-link:hover {
    background-color: #0056b3;
    transform: scale(1.05);
}

.purekfd-features {
    list-style-type: none;
    padding-left: 5px;
    margin: 12px 0;
}

.purekfd-features li {
    position: relative;
    padding-left: 22px;
    margin-bottom: 8px;
    line-height: 1.4;
}

.purekfd-features li::before {
    content: "•";
    position: absolute;
    left: 0;
    color: #007AFF;
    font-weight: bold;
    font-size: 18px;
}

@media (max-width: 768px) {
    .purekfd-links {
        flex-direction: column;
    }
    
    .purekfd-link {
        width: 100%;
        text-align: center;
        margin-bottom: 8px;
    }
}