:root {
    --apple-blue: #0070c9;
    --apple-blue-dark: #0058a1;
    --apple-gray: #f5f5f7;
    --apple-gray-dark: #1d1d1f;
    --apple-gray-text: #86868b;
    --apple-card-bg: #ffffff;
    --apple-card-bg-dark: #1c1c1e;
    --apple-border: rgba(0, 0, 0, 0.1);
    --apple-border-dark: rgba(255, 255, 255, 0.15);
    --apple-shadow: rgba(0, 0, 0, 0.05);
    --apple-shadow-dark: rgba(0, 0, 0, 0.3);
    --apple-text: #1d1d1f;
    --apple-text-dark: #f5f5f7;
    --apple-radius: 12px;
    --apple-transition: all 0.3s cubic-bezier(0.25, 0.1, 0.25, 1);
}

body {
    font-family: -apple-system, BlinkMacSystemFont, "SF Pro Text", "SF Pro Icons", "Helvetica Neue", Helvetica, Arial, sans-serif;
    background-color: var(--apple-gray);
    color: var(--apple-text);
    line-height: 1.5;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    margin: 0;
    padding: 0;
    padding-top: 36px;
    padding-bottom: calc(80px + env(safe-area-inset-bottom));
    padding-bottom: calc(80px + constant(safe-area-inset-bottom));
}

/* 标题容器 */
.title-container {
    text-align: center;
    padding: 32px 24px;
    max-width: 680px;
    margin: 0 auto;
}

.title-container h1 {
    font-size: 32px;
    font-weight: 600;
    margin-bottom: 8px;
    letter-spacing: -0.02em;
}

.subtitle {
    font-size: 17px;
    color: var(--apple-gray-text);
    margin-bottom: 32px;
    letter-spacing: -0.01em;
}

/* 按钮样式 */
#submitBtn {
    background-color: var(--apple-blue);
    color: white;
    border: none;
    border-radius: 8px;
    font-size: 17px;
    font-weight: 500;
    padding: 12px 24px;
    margin: 0 auto 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: var(--apple-transition);
    max-width: 240px;
}

#submitBtn:hover {
    background-color: var(--apple-blue-dark);
    transform: translateY(-1px);
}

#submitBtn:active {
    transform: translateY(1px);
}

#submitBtn i {
    margin-right: 8px;
}

/* 操作按钮区 */
.action-buttons {
    display: flex;
    justify-content: center;
    gap: 12px;
    flex-wrap: wrap;
    margin-bottom: 32px;
}

.action-buttons-container {
    padding: 0 !important;
    margin-bottom: 32px;
    max-width: 680px;
    margin: 0 auto 32px;
}

.action-btn {
    flex: 1;
    min-width: 160px;
    max-width: 200px;
    background-color: var(--apple-card-bg);
    border: 1px solid var(--apple-border);
    border-radius: var(--apple-radius);
    padding: 12px 16px;
    text-align: center;
    color: var(--apple-blue);
    text-decoration: none;
    box-shadow: 0 2px 8px var(--apple-shadow);
    transition: var(--apple-transition);
    font-size: 15px;
    font-weight: 500;
    display: flex;
    align-items: center;
    justify-content: center;
}

.action-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px var(--apple-shadow);
    text-decoration: none;
    color: var(--apple-blue-dark);
}

.action-btn i {
    margin-right: 6px;
}

/* 容器 */
.container {
    max-width: 680px;
    margin: 0 auto;
    padding: 0 16px;
    padding-bottom: calc(50px + env(safe-area-inset-bottom));
    padding-bottom: calc(50px + constant(safe-area-inset-bottom));
}

/* 指南区域 */
.guide-section {
    background-color: var(--apple-card-bg);
    border-radius: var(--apple-radius);
    box-shadow: 0 4px 16px var(--apple-shadow);
    padding: 24px;
    margin-bottom: 20px;
    transition: var(--apple-transition);
}

.guide-section h5 {
    font-size: 18px;
    font-weight: 600;
    margin-bottom: 16px;
    color: var(--apple-text);
    display: flex;
    align-items: center;
}

.guide-section h5 i {
    color: var(--apple-blue);
    margin-right: 8px;
}

.small-text {
    font-size: 15px;
    color: var(--apple-gray-text);
    line-height: 1.5;
}

.small-text h5 {
    font-size: 16px;
    margin-top: 20px;
    margin-bottom: 10px;
}

.small-text img {
    border-radius: 8px;
    width: 100%;
    margin: 16px 0;
    box-shadow: 0 2px 8px var(--apple-shadow);
}

.bold-text {
    color: var(--apple-blue);
    font-weight: 600;
}

/* 深色模式适配 */
@media (prefers-color-scheme: dark) {
    body {
        background-color: var(--apple-gray-dark);
        color: var(--apple-text-dark);
    }

    .subtitle {
        color: rgba(255, 255, 255, 0.6);
    }

    .title-container h1 {
        color: var(--apple-text-dark);
    }

    .action-btn {
        background-color: var(--apple-card-bg-dark);
        border-color: var(--apple-border-dark);
        box-shadow: 0 2px 8px var(--apple-shadow-dark);
    }

    .action-btn:hover {
        box-shadow: 0 4px 12px var(--apple-shadow-dark);
    }

    .guide-section {
        background-color: var(--apple-card-bg-dark);
        border-color: var(--apple-border-dark);
        box-shadow: 0 4px 16px var(--apple-shadow-dark);
    }

    .guide-section h5 {
        color: var(--apple-text-dark);
    }

    .small-text {
        color: rgba(255, 255, 255, 0.7);
    }

    .small-text img {
        border: 1px solid var(--apple-border-dark);
        box-shadow: 0 2px 8px var(--apple-shadow-dark);
    }
}

/* 响应式优化 */
@media (max-width: 576px) {
    .title-container h1 {
        font-size: 28px;
    }

    .subtitle {
        font-size: 15px;
    }

    .guide-section {
        padding: 20px;
    }
    
    #submitBtn {
        max-width: 90%;
    }
    
    .action-btn {
        min-width: 140px;
        padding: 10px 14px;
    }
}