/* ========================================
   佛山精工建站 - 首页专用样式
   ======================================== */

/* Hero Banner - 阶梯式左右递进布局 */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding-top: 80px;
    background: linear-gradient(135deg, var(--color-bg-primary) 0%, var(--color-bg-secondary) 100%);
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -20%;
    width: 80%;
    height: 200%;
    background: linear-gradient(135deg, rgba(196, 74, 74, 0.03), rgba(196, 74, 74, 0.08));
    transform: rotate(-15deg);
    z-index: 0;
}

.hero-inner {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 2rem;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
    position: relative;
    z-index: 1;
}

.hero-content {
    padding-right: 2rem;
}

.hero-badge {
    display: inline-block;
    padding: 0.5rem 1.5rem;
    background-color: rgba(196, 74, 74, 0.1);
    color: var(--color-accent);
    font-family: var(--font-primary);
    font-size: 0.9rem;
    letter-spacing: 0.1em;
    margin-bottom: 1.5rem;
    border-radius: 2px;
}

.hero-title {
    font-family: var(--font-primary);
    font-size: 3.5rem;
    line-height: 1.2;
    color: var(--color-text-primary);
    margin-bottom: 1.5rem;
    letter-spacing: 0.1em;
}

.hero-title span {
    color: var(--color-accent);
}

.hero-description {
    font-size: 1.1rem;
    color: var(--color-text-secondary);
    margin-bottom: 2.5rem;
    line-height: 1.8;
}

.hero-buttons {
    display: flex;
    gap: 1.5rem;
    flex-wrap: wrap;
}

.hero-image {
    position: relative;
}

.hero-img-wrapper {
    position: relative;
    background: linear-gradient(135deg, rgba(196, 74, 74, 0.05), rgba(196, 74, 74, 0.1));
    padding: 2rem;
    border-radius: 4px;
    box-shadow: var(--shadow-medium);
}

.hero-img-wrapper img {
    width: 100%;
    height: auto;
    border-radius: 2px;
}

.hero-decoration {
    position: absolute;
    bottom: -30px;
    right: -30px;
    width: 200px;
    height: 200px;
    background: linear-gradient(135deg, var(--color-accent), var(--color-accent-light));
    opacity: 0.1;
    border-radius: 50%;
    z-index: -1;
}

/* 核心优势板块 - 阶梯式卡片 */
.advantages {
    background-color: var(--color-white);
    position: relative;
}

.advantages-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}

.advantage-card {
    background: linear-gradient(135deg, var(--color-bg-primary), var(--color-bg-secondary));
    padding: 2.5rem;
    border-radius: 4px;
    border-left: 4px solid var(--color-accent);
    transition: var(--transition-smooth);
    position: relative;
    overflow: hidden;
}

.advantage-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, rgba(196, 74, 74, 0.02), transparent);
    opacity: 0;
    transition: var(--transition-smooth);
}

.advantage-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-medium);
}

.advantage-card:hover::before {
    opacity: 1;
}

.advantage-icon {
    width: 60px;
    height: 60px;
    margin-bottom: 1.5rem;
    object-fit: contain;
}

.advantage-card h3 {
    font-family: var(--font-primary);
    font-size: 1.3rem;
    color: var(--color-text-primary);
    margin-bottom: 1rem;
    letter-spacing: 0.08em;
}

.advantage-card p {
    color: var(--color-text-secondary);
    line-height: 1.7;
    font-size: 0.95rem;
}

/* 快速入口 - 不对称网格布局 */
.quick-access {
    background: linear-gradient(135deg, var(--color-bg-secondary), var(--color-bg-primary));
}

.access-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    grid-template-rows: repeat(2, 1fr);
    gap: 1.5rem;
    margin-top: 3rem;
}

.access-item {
    background-color: var(--color-white);
    padding: 2rem;
    text-align: center;
    border-radius: 4px;
    transition: var(--transition-smooth);
    cursor: pointer;
    border: 1px solid var(--color-border);
}

.access-item:nth-child(1) {
    grid-column: 1 / 3;
}

.access-item:nth-child(2) {
    grid-column: 3 / 5;
}

.access-item:hover {
    border-color: var(--color-accent);
    transform: translateY(-5px);
    box-shadow: var(--shadow-soft);
}

.access-icon {
    width: 50px;
    height: 50px;
    margin: 0 auto 1rem;
    object-fit: contain;
}

.access-item h3 {
    font-family: var(--font-primary);
    font-size: 1.1rem;
    color: var(--color-text-primary);
    margin-bottom: 0.5rem;
}

.access-item p {
    color: var(--color-text-light);
    font-size: 0.9rem;
}

/* 资讯列表 - 交错式布局 */
.news-section {
    background-color: var(--color-white);
}

.news-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}

.news-card {
    background-color: var(--color-bg-primary);
    border-radius: 4px;
    overflow: hidden;
    transition: var(--transition-smooth);
    border: 1px solid var(--color-border);
}

.news-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-medium);
}

.news-image {
    width: 100%;
    height: 200px;
    object-fit: cover;
}

.news-content {
    padding: 1.5rem;
}

.news-date {
    color: var(--color-accent);
    font-size: 0.85rem;
    margin-bottom: 0.75rem;
    font-family: var(--font-primary);
}

.news-card h3 {
    font-family: var(--font-primary);
    font-size: 1.1rem;
    color: var(--color-text-primary);
    margin-bottom: 0.75rem;
    line-height: 1.4;
}

.news-excerpt {
    color: var(--color-text-secondary);
    font-size: 0.9rem;
    line-height: 1.6;
    margin-bottom: 1rem;
}

.news-link {
    color: var(--color-accent);
    font-size: 0.9rem;
    font-family: var(--font-primary);
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
}

.news-link::after {
    content: '→';
    transition: var(--transition-smooth);
}

.news-link:hover::after {
    transform: translateX(5px);
}

/* CTA 区块 */
.cta-section {
    background: linear-gradient(135deg, var(--color-accent), var(--color-accent-light));
    padding: 5rem 0;
    text-align: center;
}

.cta-title {
    font-family: var(--font-primary);
    font-size: 2.5rem;
    color: var(--color-white);
    margin-bottom: 1rem;
    letter-spacing: 0.1em;
}

.cta-description {
    color: rgba(255, 255, 255, 0.9);
    font-size: 1.1rem;
    margin-bottom: 2.5rem;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

.cta-buttons {
    display: flex;
    gap: 1.5rem;
    justify-content: center;
    flex-wrap: wrap;
}

.cta-btn-white {
    background-color: var(--color-white);
    color: var(--color-accent);
    border-color: var(--color-white);
}

.cta-btn-white:hover {
    background-color: transparent;
    color: var(--color-white);
}

.cta-btn-outline-white {
    background-color: transparent;
    color: var(--color-white);
    border-color: var(--color-white);
}

.cta-btn-outline-white:hover {
    background-color: var(--color-white);
    color: var(--color-accent);
}

/* 响应式设计 */
@media (max-width: 992px) {
    .hero-inner {
        grid-template-columns: 1fr;
        gap: 3rem;
    }

    .hero-content {
        padding-right: 0;
        text-align: center;
    }

    .hero-title {
        font-size: 2.5rem;
    }

    .hero-buttons {
        justify-content: center;
    }

    .access-grid {
        grid-template-columns: 1fr 1fr;
        grid-template-rows: auto;
    }

    .access-item:nth-child(1),
    .access-item:nth-child(2) {
        grid-column: auto;
    }
}

@media (max-width: 768px) {
    .hero-title {
        font-size: 2rem;
    }

    .section-title {
        font-size: 1.75rem;
    }

    .access-grid {
        grid-template-columns: 1fr;
    }

    .cta-title {
        font-size: 2rem;
    }
}

@media (max-width: 480px) {
    .hero {
        padding-top: 70px;
    }

    .hero-inner {
        padding: 0 1rem;
    }

    .hero-title {
        font-size: 1.75rem;
    }

    .hero-buttons {
        flex-direction: column;
        gap: 1rem;
    }

    .btn {
        width: 100%;
        text-align: center;
    }

    .cta-buttons {
        flex-direction: column;
        align-items: center;
    }

    .cta-btn {
        width: 100%;
        max-width: 300px;
    }
}