/* ========================================
   拓冰建站 - 首页专属样式
   左右对撞对称布局
   ======================================== */

/* Hero Banner - 非传统全屏 */
.hero {
    padding: 180px 0 100px;
    min-height: 90vh;
    display: flex;
    align-items: center;
    position: relative;
    overflow: hidden;
    background: linear-gradient(135deg, #f5f0e8 0%, #e8dcc8 100%);
}

.hero::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -20%;
    width: 80%;
    height: 200%;
    background: radial-gradient(ellipse, rgba(196, 167, 125, 0.1) 0%, transparent 70%);
    transform: rotate(-15deg);
}

.hero-container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 80px;
    align-items: center;
    position: relative;
    z-index: 1;
}

@media (max-width: 992px) {
    .hero-container {
        grid-template-columns: 1fr;
        gap: 50px;
    }
    
    .hero {
        padding: 140px 0 60px;
        min-height: auto;
    }
}

.hero-content {
    padding-right: 40px;
}

.hero-badge {
    display: inline-block;
    padding: 8px 20px;
    background: var(--color-light-brown);
    color: var(--color-cream);
    font-size: 13px;
    letter-spacing: 2px;
    margin-bottom: 25px;
    border-radius: 50px;
}

.hero-title {
    font-size: 52px;
    line-height: 1.2;
    color: var(--color-ink-black);
    margin-bottom: 25px;
    font-weight: 700;
}

.hero-subtitle {
    font-size: 18px;
    color: #666;
    line-height: 1.8;
    margin-bottom: 40px;
    max-width: 550px;
}

.hero-buttons {
    display: flex;
    gap: 20px;
    flex-wrap: wrap;
}

.hero-image-wrapper {
    position: relative;
}

.hero-image {
    width: 100%;
    height: 500px;
    object-fit: cover;
    border-radius: 8px;
    box-shadow: 0 30px 60px rgba(43, 43, 43, 0.15);
    position: relative;
    z-index: 2;
}

.hero-decoration {
    position: absolute;
    bottom: -30px;
    left: -30px;
    width: 200px;
    height: 200px;
    background: var(--color-dark-brown);
    border-radius: 8px;
    z-index: 1;
    opacity: 0.2;
}

@media (max-width: 768px) {
    .hero-title {
        font-size: 36px;
    }
    
    .hero-subtitle {
        font-size: 16px;
    }
    
    .hero-image {
        height: 350px;
    }
}

/* 核心优势板块 - 不对称网格 */
.advantages {
    padding: 100px 0;
    background: var(--color-soft-white);
}

.advantages-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 30px;
}

@media (max-width: 992px) {
    .advantages-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 576px) {
    .advantages-grid {
        grid-template-columns: 1fr;
    }
}

.advantage-card {
    background: var(--color-cream);
    padding: 40px 30px;
    text-align: center;
    border: 1px solid var(--color-warm-gray);
    transition: all 0.4s ease;
    position: relative;
    overflow: hidden;
}

.advantage-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 4px;
    background: linear-gradient(90deg, var(--color-light-brown), var(--color-dark-brown));
    transform: scaleX(0);
    transition: transform 0.4s ease;
}

.advantage-card:hover::before {
    transform: scaleX(1);
}

.advantage-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 20px 50px rgba(43, 43, 43, 0.1);
}

.advantage-icon {
    width: 70px;
    height: 70px;
    margin: 0 auto 25px;
    background: var(--color-dark-brown);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 32px;
    color: var(--color-cream);
}

.advantage-card h3 {
    font-size: 20px;
    margin-bottom: 15px;
    color: var(--color-ink-black);
}

.advantage-card p {
    font-size: 14px;
    color: #666;
    line-height: 1.7;
}

/* 服务展示 - 左右交替布局 */
.services {
    padding: 100px 0;
}

.service-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 80px;
    align-items: center;
    margin-bottom: 100px;
}

.service-row:last-child {
    margin-bottom: 0;
}

.service-row.reverse {
    direction: rtl;
}

.service-row.reverse .service-content {
    direction: ltr;
}

@media (max-width: 992px) {
    .service-row {
        grid-template-columns: 1fr;
        gap: 40px;
        margin-bottom: 60px;
    }
    
    .service-row.reverse {
        direction: ltr;
    }
}

.service-image {
    width: 100%;
    height: 400px;
    object-fit: cover;
    border-radius: 8px;
    box-shadow: 0 20px 50px rgba(43, 43, 43, 0.12);
}

.service-content {
    padding: 40px;
    background: var(--color-soft-white);
    border: 1px solid var(--color-warm-gray);
    border-radius: 8px;
}

.service-tag {
    display: inline-block;
    padding: 6px 15px;
    background: rgba(196, 167, 125, 0.15);
    color: var(--color-dark-brown);
    font-size: 13px;
    letter-spacing: 1px;
    margin-bottom: 20px;
    border-radius: 4px;
}

.service-content h3 {
    font-size: 28px;
    margin-bottom: 20px;
    color: var(--color-ink-black);
}

.service-content p {
    font-size: 15px;
    color: #666;
    line-height: 1.9;
    margin-bottom: 25px;
}

.service-features {
    list-style: none;
    margin-bottom: 30px;
}

.service-features li {
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: 14px;
    color: #555;
    margin-bottom: 12px;
}

.service-features li::before {
    content: '✓';
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 20px;
    height: 20px;
    background: var(--color-light-brown);
    color: var(--color-cream);
    border-radius: 50%;
    font-size: 12px;
    flex-shrink: 0;
}

/* 套餐价格 - 梯度卡片 */
.packages {
    padding: 100px 0;
    background: linear-gradient(180deg, var(--color-cream) 0%, var(--color-soft-white) 100%);
}

.packages-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 40px;
    align-items: stretch;
}

@media (max-width: 992px) {
    .packages-grid {
        grid-template-columns: 1fr;
        max-width: 500px;
        margin: 0 auto;
    }
}

.package-card {
    background: var(--color-soft-white);
    border: 2px solid var(--color-warm-gray);
    border-radius: 12px;
    padding: 50px 40px;
    text-align: center;
    transition: all 0.4s ease;
    position: relative;
}

.package-card.featured {
    border-color: var(--color-dark-brown);
    transform: scale(1.05);
    box-shadow: 0 25px 60px rgba(43, 43, 43, 0.15);
}

.package-card.featured::before {
    content: '热门推荐';
    position: absolute;
    top: -15px;
    left: 50%;
    transform: translateX(-50%);
    background: var(--color-dark-brown);
    color: var(--color-cream);
    padding: 6px 25px;
    font-size: 13px;
    letter-spacing: 1px;
    border-radius: 50px;
}

.package-card:hover {
    transform: translateY(-10px);
    border-color: var(--color-light-brown);
    box-shadow: 0 20px 50px rgba(43, 43, 43, 0.1);
}

.package-card.featured:hover {
    transform: scale(1.05) translateY(-10px);
}

.package-name {
    font-size: 22px;
    color: var(--color-ink-black);
    margin-bottom: 15px;
}

.package-price {
    font-size: 48px;
    color: var(--color-dark-brown);
    font-weight: 700;
    margin-bottom: 30px;
}

.package-price span {
    font-size: 16px;
    color: #888;
    font-weight: 400;
}

.package-features {
    list-style: none;
    margin-bottom: 40px;
    text-align: left;
}

.package-features li {
    padding: 12px 0;
    border-bottom: 1px solid var(--color-warm-gray);
    font-size: 14px;
    color: #555;
}

.package-features li:last-child {
    border-bottom: none;
}

/* 案例展示 - 瀑布流风格 */
.cases {
    padding: 100px 0;
}

.cases-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 25px;
}

@media (max-width: 992px) {
    .cases-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 576px) {
    .cases-grid {
        grid-template-columns: 1fr;
    }
}

.case-item {
    position: relative;
    overflow: hidden;
    border-radius: 8px;
    cursor: pointer;
}

.case-item:nth-child(1) {
    grid-column: span 2;
    grid-row: span 2;
}

.case-image {
    width: 100%;
    height: 100%;
    min-height: 250px;
    object-fit: cover;
    transition: transform 0.5s ease;
}

.case-item:hover .case-image {
    transform: scale(1.1);
}

.case-overlay {
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    padding: 30px;
    background: linear-gradient(transparent, rgba(43, 43, 43, 0.9));
    color: var(--color-cream);
    transform: translateY(20px);
    opacity: 0;
    transition: all 0.4s ease;
}

.case-item:hover .case-overlay {
    transform: translateY(0);
    opacity: 1;
}

.case-overlay h4 {
    font-size: 18px;
    margin-bottom: 8px;
}

.case-overlay p {
    font-size: 13px;
    opacity: 0.8;
}

/* CTA 区块 */
.cta-section {
    padding: 100px 0;
    background: var(--color-dark-brown);
    text-align: center;
}

.cta-content {
    max-width: 700px;
    margin: 0 auto;
}

.cta-title {
    font-size: 42px;
    color: var(--color-cream);
    margin-bottom: 20px;
}

.cta-text {
    font-size: 16px;
    color: rgba(245, 240, 232, 0.8);
    margin-bottom: 40px;
    line-height: 1.8;
}

.cta-buttons {
    display: flex;
    justify-content: center;
    gap: 20px;
    flex-wrap: wrap;
}

.btn-light {
    background: var(--color-cream);
    color: var(--color-dark-brown);
    border-color: var(--color-cream);
}

.btn-light:hover {
    background: transparent;
    color: var(--color-cream);
}

.btn-outline-light {
    background: transparent;
    color: var(--color-cream);
    border-color: var(--color-cream);
}

.btn-outline-light:hover {
    background: var(--color-cream);
    color: var(--color-dark-brown);
}

/* 资讯列表区块 - 首页专用 */
.home-news {
    padding: 100px 0;
    background: var(--color-soft-white);
}

.news-tabs {
    display: flex;
    justify-content: center;
    gap: 15px;
    margin-bottom: 50px;
    flex-wrap: wrap;
}

.news-tab {
    padding: 10px 25px;
    border: 2px solid var(--color-warm-gray);
    background: transparent;
    color: #666;
    font-size: 14px;
    cursor: pointer;
    transition: all 0.3s ease;
    border-radius: 50px;
}

.news-tab.active,
.news-tab:hover {
    background: var(--color-dark-brown);
    border-color: var(--color-dark-brown);
    color: var(--color-cream);
}