/* Yidaizhang Special Styles */
:root {
    --ydz-red: #e60012;
    --ydz-dark-red: #c40010;
    --ydz-gray: #f7f8fa;
    --ydz-text: #333;
}

.ydz-banner {
    background: linear-gradient(135deg, #ff4e50 0%, #e60012 100%);
    color: #fff;
    padding: 100px 0;
    text-align: center;
}

.banner-content h1 {
    font-size: 48px;
    margin-bottom: 20px;
    font-weight: 700;
}

.banner-content .subtitle {
    font-size: 24px;
    margin-bottom: 40px;
    opacity: 0.9;
}

.banner-features {
    display: flex;
    justify-content: center;
    gap: 30px;
    margin-bottom: 50px;
    list-style: none;
}

.banner-features li {
    font-size: 18px;
    display: flex;
    align-items: center;
    gap: 8px;
}

.btn-ydz {
    display: inline-block;
    padding: 15px 40px;
    background-color: #fff;
    color: var(--ydz-red);
    font-size: 20px;
    font-weight: bold;
    border-radius: 50px;
    transition: all 0.3s;
    box-shadow: 0 5px 15px rgba(0,0,0,0.2);
}

.btn-ydz:hover {
    background-color: #fff5f5;
    transform: translateY(-2px);
    box-shadow: 0 8px 20px rgba(0,0,0,0.3);
}

/* Hero CTA 组（主按钮 + 试用按钮） */
.hero-cta {
    display: flex;
    justify-content: center;
    align-items: center;
    flex-wrap: wrap;
    gap: 16px;
}

.btn-trial {
    display: inline-block;
    padding: 15px 40px;
    background: linear-gradient(135deg, #ff8a00 0%, #ff5a00 100%);
    color: #fff;
    font-size: 20px;
    font-weight: bold;
    border-radius: 50px;
    transition: all 0.3s;
    box-shadow: 0 5px 15px rgba(255,90,0,0.35);
}

.btn-trial:hover {
    color: #fff;
    transform: translateY(-2px);
    box-shadow: 0 8px 22px rgba(255,90,0,0.5);
}

/* Sections */
.ydz-section {
    padding: 80px 0;
}

.bg-white { background-color: #fff; }
.bg-gray { background-color: var(--ydz-gray); }

.section-title {
    text-align: center;
    font-size: 36px;
    color: var(--ydz-text);
    margin-bottom: 60px;
    position: relative;
}

.section-title::after {
    content: '';
    display: block;
    width: 60px;
    height: 4px;
    background-color: var(--ydz-red);
    margin: 20px auto 0;
    border-radius: 2px;
}

/* Pain Points */
.pain-points-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
}

.pain-card {
    background: #fff;
    padding: 40px 30px;
    border-radius: 10px;
    box-shadow: 0 5px 20px rgba(0,0,0,0.05);
    text-align: center;
    transition: transform 0.3s;
    border-top: 4px solid transparent;
}

.pain-card:hover {
    transform: translateY(-10px);
    border-top-color: var(--ydz-red);
}

.icon-box {
    font-size: 48px;
    color: var(--ydz-red);
    margin-bottom: 20px;
}

.pain-card h3 {
    font-size: 22px;
    margin-bottom: 15px;
}

.pain-card p {
    color: #666;
    line-height: 1.6;
}

/* Feature Grid */
.feature-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 30px;
}

.feature-item {
    background: #fff;
    padding: 30px;
    border-radius: 8px;
    display: flex;
    align-items: center;
    gap: 20px;
    box-shadow: 0 2px 10px rgba(0,0,0,0.03);
}

.f-icon {
    width: 60px;
    height: 60px;
    background-color: #ffe6e8;
    color: var(--ydz-red);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 28px;
    flex-shrink: 0;
}

.f-text h3 {
    font-size: 20px;
    margin-bottom: 8px;
}

.f-text p {
    color: #666;
    font-size: 14px;
}

/* Management Grid */
.management-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
}

.mgmt-card {
    background: var(--ydz-gray);
    padding: 30px 20px;
    text-align: center;
    border-radius: 8px;
    transition: background 0.3s;
}

.mgmt-card:hover {
    background: #fff;
    box-shadow: 0 5px 15px rgba(0,0,0,0.1);
}

.mgmt-card h3 {
    font-size: 18px;
    margin-bottom: 10px;
    color: var(--ydz-text);
}

.mgmt-card h3 i {
    color: var(--ydz-red);
    margin-right: 5px;
}

.mgmt-card p {
    font-size: 13px;
    color: #777;
}

/* Contact */
.ydz-contact {
    background: url('https://images.unsplash.com/photo-1557804506-669a67965ba0?ixlib=rb-1.2.1&auto=format&fit=crop&w=1920&q=80') no-repeat center center/cover;
    position: relative;
    color: #fff;
    padding: 80px 0;
    text-align: center;
}

.ydz-contact::before {
    content: '';
    position: absolute;
    top: 0; left: 0; right: 0; bottom: 0;
    background: rgba(230, 0, 18, 0.9);
}

.contact-inner {
    position: relative;
    z-index: 1;
}

.contact-inner h2 {
    font-size: 36px;
    margin-bottom: 15px;
}

.contact-methods {
    display: flex;
    justify-content: center;
    gap: 40px;
    margin: 40px 0;
}

.c-item {
    font-size: 20px;
    display: flex;
    align-items: center;
    gap: 10px;
}

.btn-white {
    display: inline-block;
    padding: 12px 35px;
    border: 2px solid #fff;
    color: #fff;
    font-size: 18px;
    border-radius: 50px;
    transition: all 0.3s;
}

.btn-white:hover {
    background-color: #fff;
    color: var(--ydz-red);
}

/* Responsive */
@media (max-width: 992px) {
    .pain-points-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .management-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .ydz-banner {
        padding: 50px 0;
    }

    .banner-content h1 {
        font-size: 28px;
        margin-bottom: 14px;
    }

    .banner-content .subtitle {
        font-size: 16px;
        margin-bottom: 26px;
    }

    .banner-features {
        flex-direction: column;
        align-items: center;
        gap: 12px;
        margin-bottom: 30px;
    }

    .banner-features li {
        font-size: 15px;
    }

    .btn-ydz {
        padding: 12px 30px;
        font-size: 17px;
    }

    .hero-cta {
        gap: 12px;
    }

    .btn-trial {
        padding: 12px 30px;
        font-size: 17px;
    }

    .ydz-section {
        padding: 40px 0;
    }

    .section-title {
        font-size: 24px;
        margin-bottom: 30px;
    }

    .pain-points-grid,
    .feature-grid,
    .management-grid {
        grid-template-columns: 1fr;
        gap: 16px;
    }

    .pain-card {
        padding: 24px 18px;
    }

    .feature-item {
        padding: 18px;
        gap: 14px;
    }

    .icon-box {
        font-size: 38px;
        margin-bottom: 12px;
    }

    .ydz-contact {
        padding: 40px 0;
    }

    .contact-inner h2 {
        font-size: 24px;
    }

    .contact-methods {
        flex-direction: column;
        gap: 14px;
        margin: 20px 0;
    }

    .c-item {
        font-size: 16px;
        justify-content: center;
    }

    .btn-white {
        padding: 10px 26px;
        font-size: 16px;
    }
}