/* guide-style.css - 现代化升级 */
.container {
    max-width: 100%;
    margin: 0 auto;
    padding: 0;
    animation: fadeIn 0.6s ease-out;
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.back-btn {
    display: inline-flex;
    align-items: center;
    padding: 12px 24px;
    background: rgba(255, 255, 255, 0.9);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    color: #1890ff;
    text-decoration: none;
    border-radius: 50px;
    font-size: 15px;
    font-weight: 600;
    margin: 20px;
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    border: 2px solid rgba(24, 144, 255, 0.2);
    box-shadow: 0 4px 12px rgba(24, 144, 255, 0.1);
}

.back-btn:hover {
    background: #1890ff;
    color: white;
    transform: translateY(-3px) scale(1.05);
    box-shadow: 0 8px 20px rgba(24, 144, 255, 0.25);
    border-color: #1890ff;
}

.back-btn:before {
    content: "←";
    margin-right: 8px;
    font-size: 18px;
}

.guide-header {
    text-align: center;
    margin-bottom: 50px;
    padding: 30px 20px;
    background: rgba(255, 255, 255, 0.7);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-radius: 0 0 40px 40px;
    box-shadow: 0 4px 20px rgba(24, 144, 255, 0.08);
    animation: slideDown 0.8s cubic-bezier(0.4, 0, 0.2, 1);
}

@keyframes slideDown {
    from {
        opacity: 0;
        transform: translateY(-50px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.guide-header h1 {
    font-size: 2.5em;
    line-height: 1.3;
    margin-bottom: 20px;
    color: #1890ff;
    font-weight: 800;
    text-shadow: 0 2px 8px rgba(24, 144, 255, 0.15);
}

.guide-subtitle {
    font-size: 1.3em;
    color: #595959;
    margin-bottom: 10px;
    font-weight: 600;
    text-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
}

.guide-desc {
    font-size: 1.1em;
    color: #595959;
    line-height: 1.6;
    text-shadow: 0 1px 3px rgba(0, 0, 0, 0.05);
}

.steps-container {
    margin-top: 40px;
}

.step-item {
    margin-bottom: 40px;
    padding: 30px;
    border-radius: 30px;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    box-shadow: 0 15px 50px rgba(0, 0, 0, 0.15);
    transition: all 0.5s cubic-bezier(0.4, 0, 0.2, 1);
    border: 2px solid rgba(255, 255, 255, 0.3);
    position: relative;
    overflow: hidden;
}

.step-item::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, #1890ff 0%, #40a9ff 100%);
    transform: scaleX(0);
    transform-origin: left;
    transition: transform 0.5s cubic-bezier(0.4, 0, 0.2, 1);
}

.step-item:hover::before {
    transform: scaleX(1);
}

.step-item:hover {
    transform: translateY(-8px) scale(1.02);
    box-shadow: 0 25px 70px rgba(79, 172, 254, 0.3);
    border-color: rgba(79, 172, 254, 0.5);
}

.step-header {
    display: flex;
    align-items: center;
    margin-bottom: 20px;
}

.step-number {
    font-size: 2.2em;
    font-weight: 900;
    background: linear-gradient(135deg, #1890ff 0%, #096dd9 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-right: 15px;
}

.step-title {
    font-size: 1.4em;
    font-weight: 700;
    color: #333;
}

.step-content {
    position: relative;
}

.step-image {
    width: 100%;
    border-radius: 20px;
    overflow: hidden;
    margin-bottom: 15px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.15);
    transition: all 0.4s ease;
}

.step-image:hover {
    transform: scale(1.02);
    box-shadow: 0 15px 40px rgba(0, 0, 0, 0.2);
}

.step-image img {
    width: 100%;
    height: auto;
    transition: transform 0.4s ease;
}

.step-image:hover img {
    transform: scale(1.05);
}

.step-desc {
    color: #666;
    line-height: 1.5;
}

.tips-box {
    background: white;
    padding: 30px;
    border-radius: 30px;
    margin-top: 40px;
    border: 2px solid #1890ff;
    box-shadow: 0 8px 20px rgba(24, 144, 255, 0.15);
    transition: all 0.4s ease;
}

.tips-box:hover {
    transform: translateY(-3px);
    box-shadow: 0 12px 30px rgba(24, 144, 255, 0.25);
}

.tips-box h3 {
    color: #1890ff;
    margin-bottom: 15px;
    font-size: 1.5em;
    font-weight: 700;
}

.tips-box ul {
    padding-left: 20px;
    color: #555;
}

.tips-box li {
    margin-bottom: 10px;
}

@media (max-width: 768px) {
    .container {
        padding: 15px;
    }

    .guide-header h1 {
        font-size: 2em;
    }

    .step-item {
        padding: 15px;
    }
}

/* 
滚动条美化 - 现代化升级 */
::-webkit-scrollbar {
    width: 10px;
    height: 10px;
}

::-webkit-scrollbar-track {
    background: rgba(255, 255, 255, 0.1);
    border-radius: 10px;
}

::-webkit-scrollbar-thumb {
    background: linear-gradient(135deg, #1890ff 0%, #096dd9 100%);
    border-radius: 10px;
    box-shadow: 0 2px 8px rgba(24, 144, 255, 0.3);
}

::-webkit-scrollbar-thumb:hover {
    background: linear-gradient(135deg, #096dd9 0%, #0050b3 100%);
    box-shadow: 0 4px 12px rgba(24, 144, 255, 0.4);
}

/* 平滑滚动 */
html {
    scroll-behavior: smooth;
}

/* 背景渐变 */
body {
    background: linear-gradient(135deg, #e0f7ff 0%, #f0f9ff 50%, #e6f7ff 100%);
    background-attachment: fixed;
}

/* 步骤项动画 */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.step-item {
    animation: fadeInUp 0.6s ease-out;
}

.step-item:nth-child(1) { animation-delay: 0.1s; }
.step-item:nth-child(2) { animation-delay: 0.2s; }
.step-item:nth-child(3) { animation-delay: 0.3s; }
.step-item:nth-child(4) { animation-delay: 0.4s; }