/* ==================== 全局变量 ==================== */
:root {
    --bg-primary: #FFFFFF;
    --text-primary: #111111;
    --text-secondary: #888888;
    --border-color: #EAEAEA;
    --accent-pink: #ec4899;
    --success-green: #34C759;
    --surface-secondary: #F7F7F7;
    
    --header-height: 80px;
    --footer-height: 60px;
    --content-max-width: 1200px;
}

/* ==================== 重置样式 ==================== */
* {
    margin: 0;
    padding: 0;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    background-color: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.6;
    min-height: 100vh;
}



/* ==================== 主容器 ==================== */
.main-container {
    max-width: var(--content-max-width);
    margin: 0 auto;
    padding: 40px 20px;
}

.main-container.no-gap {
    max-width: var(--content-max-width);
    margin: 0 auto;
    padding: 0px 20px;
}

.page-title {
    font-family: 'Playfair Display', Georgia, serif;
    font-size: 32px;
    font-weight: bold;
    margin-bottom: 16px;
}

.page-subtitle {
    color: var(--text-secondary);
    font-size: 18px;
    margin-bottom: 32px;
}



/* ==================== 定价页样式 ==================== */
.pricing-header {
    text-align: center;
    margin-bottom: 48px;
}

.package-description {
    background: var(--surface-secondary);
    padding: 20px 24px;
    border-radius: 12px;
    margin-bottom: 32px;
    font-size: 14px;
    color: var(--text-secondary);
}

.package-description h3 {
    color: var(--text-primary);
    font-size: 16px;
    margin-bottom: 12px;
}

.package-description ul {
    list-style: none;
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 8px 24px;
}

.package-description li {
    position: relative;
    padding-left: 16px;
}

.package-description li:before {
    content: "\25cf";
    position: absolute;
    left: 0;
    color: var(--accent-pink);
}

.pricing-grid {
    display: grid;
    /* 强制锁死3列，删了全局盒模型也不会变4个 */
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
    margin-top: 32px;
}

.pricing-card {
    background: white;
    border: 1px solid var(--border-color);
    border-radius: 16px;
    padding: 32px 24px;
    transition: all 0.3s ease;
    position: relative;
    /* 只给定价卡单独加盒模型，其他地方完全不影响 */
    box-sizing: border-box;
    /* 强制占满列宽，杜绝撑大挤成4个 */
    width: 100%;
}

.pricing-card:hover,
.pricing-card.selected {
    border-color: var(--accent-pink);
    box-shadow: 0 8px 32px rgba(236, 72, 153, 0.15);
    transform: translateY(-4px);
}

.pricing-card.selected::before {
    content: '\63a8\8350';
    position: absolute;
    top: -12px;
    left: 50%;
    transform: translateX(-50%);
    background: var(--accent-pink);
    color: white;
    padding: 4px 16px;
    border-radius: 20px;
    font-size: 12px;
    font-weight: 600;
}

.pricing-tier {
    font-size: 14px;
    color: var(--text-secondary);
    margin-bottom: 8px;
}

.pricing-title {
    font-size: 24px;
    font-weight: 600;
    margin-bottom: 16px;
}

.pricing-price {
    font-size: 42px;
    font-weight: bold;
    color: var(--accent-pink);
    margin-bottom: 24px;
}

.pricing-features {
    list-style: none;
    margin-bottom: 32px;
}

.pricing-features li {
    font-size: 16px;
    padding: 10px 0;
    border-bottom: 1px solid var(--border-color);
}

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

.pricing-btn {
    width: 100%;
    padding: 14px;
    background: var(--accent-pink);
    color: white;
    border: none;
    border-radius: 8px;
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
    transition: opacity 0.3s;
}

.pricing-btn:hover {
    opacity: 0.9;
}

/* ==================== 合作页 ==================== */
.hero-banner-full {
    width: 100vw;
    margin-left: calc(-50vw + 50%);
    height: 420px;
    background: linear-gradient(rgba(0,0,0,0.5), rgba(0,0,0,0.5)), url(bg1.jpg) center/cover no-repeat;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    color: white;
    text-align: center;
    margin-bottom: 48px;
}

.hero-title {
    font-family: 'Playfair Display', Georgia, serif;
    font-size: 48px;
    font-weight: bold;
    margin-bottom: 16px;
}

.hero-subtitle {
    font-size: 20px;
    opacity: 0.9;
}

.section-title {
    font-size: 24px;
    font-weight: 600;
    margin-bottom: 24px;
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
    margin-bottom: 48px;
}

.service-card {
    background: var(--surface-secondary);
    padding: 32px;
    border-radius: 12px;
}

.service-card h3 {
    font-size: 20px;
    margin-bottom: 12px;
}

.service-card p {
    font-size: 14px;
    color: var(--text-secondary);
    line-height: 1.7;
}

.problems-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 24px;
    margin-bottom: 48px;
}

.problem-card {
    background: white;
    border: 1px solid var(--border-color);
    padding: 24px;
    border-radius: 12px;
}

.problem-card h3 {
    font-size: 18px;
    margin-bottom: 8px;
}

.problem-card p {
    font-size: 14px;
    color: var(--text-secondary);
}

.guarantee-section {
    background: var(--surface-secondary);
    padding: 32px;
    border-radius: 16px;
}

.guarantee-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 24px;
    margin-top: 24px;
}

.guarantee-item {
    display: flex;
    align-items: flex-start;
    gap: 12px;
}

.checkmark {
    color: var(--success-green);
    font-size: 20px;
    flex-shrink: 0;
    margin-top: 2px;
}

.guarantee-item h4 {
    font-size: 16px;
    margin-bottom: 4px;
}

.guarantee-item p {
    font-size: 14px;
    color: var(--text-secondary);
}



/* ==================== 服务页 ==================== */
.hero-banner-contact {
    width: 100vw;
    margin-left: calc(-50vw + 50%);
    height: 420px;
    background: linear-gradient(rgba(0,0,0,0.5), rgba(0,0,0,0.5)), url('https://images.unsplash.com/photo-1534536281715-e28d76689b4d?w=1920') center/cover;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    color: white;
    text-align: center;
    margin-bottom: 48px;
}

.cooperation-section {
    margin-bottom: 48px;
}

.cooperation-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 16px;
    margin-bottom: 16px;
}

.cooperation-item {
    background: var(--surface-secondary);
    padding: 24px;
    border-radius: 12px;
    cursor: pointer;
    transition: all 0.3s;
}

.cooperation-item:hover {
    background: var(--accent-pink);
    color: white;
}

.cooperation-item h3 {
    font-size: 18px;
    margin-bottom: 8px;
}

.cooperation-item p {
    font-size: 14px;
    opacity: 0.8;
}

.cooperation-last-row {
    display: flex;
    justify-content: center;
    gap: 16px;
}

.cooperation-last-row .cooperation-item {
    width: calc(50% - 8px);
}

.contact-form {
    background: var(--surface-secondary);
    padding: 32px;
    border-radius: 16px;
}

.form-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 24px;
}

.form-group {
    margin-bottom: 20px;
}

.form-group.full-width {
    grid-column: span 2;
}

.form-label {
    display: block;
    font-size: 14px;
    font-weight: 500;
    margin-bottom: 8px;
}

.form-input,
.form-textarea,
.form-select {
    width: 100%;
    padding: 12px 16px;
    border: 1px solid var(--border-color);
    border-radius: 8px;
    font-size: 14px;
    background: white;
}

.form-textarea {
    height: 200px;
    resize: vertical;
}

.submit-btn {
    background: var(--accent-pink);
    color: white;
    border: none;
    padding: 14px 32px;
    border-radius: 8px;
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
    transition: opacity 0.3s;
}

.submit-btn:hover {
    opacity: 0.9;
}





/* ============ 限时优惠样式（GBK纯兼容，无特殊字符） ============ */
/* 顶部优惠提示 */
.discount-notice {
    background: linear-gradient(135deg, #fff1f0, #ffeceb);
    border: 1px solid #ffccc7;
    color: #cf1322;
    padding: 12px 24px;
    border-radius: 12px;
    margin-bottom: 32px;
    text-align: center;
    font-size: 15px;
    font-weight: 500;
}
.discount-notice strong {
    font-size: 18px;
    margin: 0 4px;
}

/* 右上角促销标签（和原有「推荐」标签不重叠，「推荐」在顶部居中，本标签在右上角） */
.promo-tag {
    position: absolute;
    top: -12px;
    right: 20px;
    background: linear-gradient(90deg, #ff4d4f, #ff7875);
    color: white;
    padding: 6px 16px;
    border-radius: 20px;
    font-size: 12px;
    font-weight: bold;
    box-shadow: 0 4px 12px rgba(255, 77, 79, 0.4);
    z-index: 11; /* 比原有「推荐」标签的z-index高，不会被遮挡 */
    white-space: nowrap;
}

/* 价格区域布局，适配原有样式 */
.pricing-price {
    display: flex;
    align-items: baseline;
    flex-wrap: wrap;
    gap: 8px;
    margin-bottom: 24px;
}
.current-price {
    font-size: 42px;
    font-weight: bold;
    color: var(--accent-pink);
    line-height: 1.2;
}
.original-price {
    font-size: 18px;
    color: var(--text-secondary);
    text-decoration: line-through;
    opacity: 0.7;
}
.price-unit {
    font-size: 16px;
    color: var(--text-secondary);
    align-self: flex-end;
    margin-bottom: 4px;
}

/* 按钮微调 */
.pricing-btn {
    font-weight: 600;
    letter-spacing: 1px;
}

/* 移动端适配，兼容原有响应式规则 */
@media (max-width: 768px) {
    .current-price {
        font-size: 36px;
    }
    .promo-tag {
        font-size: 11px;
        padding: 5px 12px;
        top: -10px;
        right: 15px;
    }
}





/* ==================== 响应式 ==================== */
@media (max-width: 1024px) {
    .services-grid,
    .problems-grid,
    .guarantee-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .services-grid,
    .problems-grid,
    .guarantee-grid,
    .cooperation-grid {
        grid-template-columns: 1fr;
    }
    
    .form-grid {
        grid-template-columns: 1fr;
    }
    
    .form-group.full-width {
        grid-column: span 1;
    }
    
    .package-description ul {
        grid-template-columns: 1fr;
    }
}