/* ============================================================
   pages.css — 子页面公共样式（内页 Hero、按钮等）
   ============================================================ */

/* ── 内页 Hero ───────────────────────────────────────────── */
.page-hero {
    margin-top: var(--header-height);
    background: var(--color-bg-light);
    padding: 64px 0;
    text-align: center;
}

.page-hero-title {
    font-size: 48px;
    font-weight: 500;
    color: var(--color-dark);
    line-height: 1.2;
}

.page-hero-subtitle {
    font-size: 16px;
    color: var(--color-muted);
    margin-top: 16px;
    line-height: 1.5;
}

/* 产品详情页 Hero（含返回链接） */
.page-hero-detail {
    text-align: left;
    padding: 48px 0 40px;
}

.page-back {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    font-size: 14px;
    color: var(--color-muted);
    margin-bottom: 24px;
    transition: color var(--transition);
}

.page-back:hover {
    color: var(--color-primary);
}

.page-back svg {
    width: 16px;
    height: 16px;
    flex-shrink: 0;
}

/* ── 通用 Section（子页复用 index 变量） ─────────────────── */
.section {
    padding: 80px 0;
}

.section-gray {
    background: var(--color-bg-light);
}

.section-title {
    font-size: 36px;
    font-weight: 500;
    color: var(--color-dark);
    text-align: center;
    line-height: 1.2;
    margin-bottom: 16px;
}

.section-subtitle {
    font-size: 16px;
    color: var(--color-muted);
    text-align: center;
    line-height: 1.5;
}

/* ── 按钮 ────────────────────────────────────────────────── */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    height: 48px;
    padding: 0 24px;
    border-radius: var(--radius-sm);
    font-size: 16px;
    font-weight: 400;
    white-space: nowrap;
    transition: all var(--transition);
    border: 2px solid transparent;
    cursor: pointer;
}

.btn-dark {
    background: var(--color-primary);
    color: var(--color-white);
    border-color: var(--color-primary);
}

.btn-dark:hover {
    opacity: 0.88;
}

.btn-sm {
    height: 40px;
    padding: 0 20px;
    font-size: 14px;
}

/* ── 公司简介页 ───────────────────────────────────────────── */
.about-page-content {
    max-width: 896px;
    margin: 0 auto;
}

.about-page-intro {
    font-size: 18px;
    color: var(--color-dark);
    line-height: 1.65;
    margin-bottom: 32px;
}

.about-page-block {
    margin-bottom: 28px;
}

.about-page-block h2 {
    font-size: 20px;
    font-weight: 500;
    color: var(--color-dark);
    margin-bottom: 12px;
    line-height: 1.4;
}

.about-page-block p {
    font-size: 16px;
    color: var(--color-muted);
    line-height: 1.625;
}

.about-page-list {
    margin-top: 12px;
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.about-page-list li {
    font-size: 16px;
    color: var(--color-muted);
    line-height: 1.625;
    padding-left: 4px;
    display: flex;
}

.about-page-list li::before {
    content: '•';
    color: var(--color-primary);
    margin-right: 10px;
}

/* ── 产品中心页 ───────────────────────────────────────────── */
.products-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
}

.product-card {
    background: var(--color-white);
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    overflow: hidden;
    transition: transform var(--transition), box-shadow var(--transition);
}

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

.product-card-link {
    display: block;
    color: inherit;
}

.product-img {
    width: 100%;
    aspect-ratio: 286 / 213;
    overflow: hidden;
    background: #f5f5f5;
}

.product-img img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s ease;
}

.product-card:hover .product-img img {
    transform: scale(1.07);
}

.product-name {
    padding: 16px;
    font-size: 16px;
    font-weight: 500;
    color: var(--color-dark);
    text-align: center;
    line-height: 1.2;
}

.product-card.is-hidden {
    display: none;
}

/* 产品分页 */
.pagination {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    margin-top: 48px;
    flex-wrap: wrap;
}

.pagination-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 88px;
    height: 40px;
    padding: 0 16px;
    font-size: 14px;
    color: var(--color-dark);
    background: var(--color-white);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-sm);
    cursor: pointer;
    transition: all var(--transition);
}

.pagination-btn:hover:not(:disabled) {
    border-color: var(--color-primary);
    color: var(--color-primary);
}

.pagination-btn:disabled {
    opacity: 0.4;
    cursor: not-allowed;
}

.pagination-list {
    display: flex;
    align-items: center;
    gap: 8px;
}

.pagination-num {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 40px;
    height: 40px;
    padding: 0 12px;
    font-size: 14px;
    color: var(--color-dark);
    background: var(--color-white);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-sm);
    cursor: pointer;
    transition: all var(--transition);
}

.pagination-num:hover {
    border-color: var(--color-primary);
    color: var(--color-primary);
}

.pagination-num.active {
    background: var(--color-primary);
    border-color: var(--color-primary);
    color: var(--color-white);
}

.pagination-info {
    font-size: 14px;
    color: var(--color-muted);
    margin-left: 8px;
}

/* ── 产品详情页 ───────────────────────────────────────────── */
.product-detail-top {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 48px;
    align-items: start;
    margin-bottom: 48px;
}

.product-detail-image {
    border-radius: 10px;
    overflow: hidden;
    box-shadow: 0 10px 15px -3px rgba(0,0,0,0.1),
                0 4px 6px -4px rgba(0,0,0,0.1);
}

.product-detail-image img {
    width: 100%;
    height: 389px;
    object-fit: cover;
}

.product-detail-intro h2 {
    font-size: 20px;
    font-weight: 500;
    color: var(--color-dark);
    margin-bottom: 16px;
}

.product-detail-intro > p {
    font-size: 16px;
    color: var(--color-muted);
    line-height: 1.625;
    margin-bottom: 24px;
}

.product-features {
    background: var(--color-white);
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    padding: 24px;
}

.product-features h3 {
    font-size: 18px;
    font-weight: 500;
    color: var(--color-dark);
    margin-bottom: 16px;
}

.product-features ul {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.product-features li {
    font-size: 16px;
    color: var(--color-muted);
    display: flex;
    align-items: flex-start;
    gap: 10px;
    line-height: 1.5;
}

.product-features .check {
    color: var(--color-primary);
    font-weight: 700;
    flex-shrink: 0;
}

.product-detail-desc {
    margin-bottom: 40px;
}

.product-detail-desc p {
    font-size: 16px;
    color: var(--color-muted);
    line-height: 1.75;
    margin-bottom: 16px;
}

.product-detail-desc p:last-child {
    margin-bottom: 0;
}

/* ── 联系方式页 ───────────────────────────────────────────── */
.contact-cards {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
    margin-bottom: 48px;
}

.contact-card {
    background: var(--color-white);
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    padding: 32px 24px 28px;
    text-align: center;
    transition: transform var(--transition), box-shadow var(--transition);
}

.contact-card:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-card-hover);
}

.contact-icon {
    width: 48px;
    height: 48px;
    background: rgba(3, 2, 19, 0.08);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 16px;
}

.contact-icon svg {
    width: 24px;
    height: 24px;
}

.contact-label {
    font-size: 16px;
    font-weight: 500;
    color: var(--color-dark);
    margin-bottom: 8px;
}

.contact-value {
    font-size: 14px;
    color: var(--color-muted);
    word-break: break-all;
}

.contact-form-wrap {
    max-width: 768px;
    margin: 0 auto;
    background: var(--color-white);
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    padding: 32px;
}

.contact-form-title {
    font-size: 20px;
    font-weight: 500;
    color: var(--color-dark);
    text-align: center;
    margin-bottom: 12px;
}

.contact-form-desc {
    font-size: 16px;
    color: var(--color-muted);
    text-align: center;
    margin-bottom: 32px;
    line-height: 1.5;
}

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

.contact-form .form-group {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.contact-form .form-group.full {
    grid-column: 1 / -1;
}

.contact-form label {
    font-size: 14px;
    font-weight: 500;
    color: var(--color-dark);
}

.contact-form label .required {
    color: #c00;
}

.contact-form input,
.contact-form textarea {
    font-family: inherit;
    font-size: 14px;
    color: var(--color-dark);
    background: #f3f3f5;
    border: 1px solid transparent;
    border-radius: var(--radius-sm);
    padding: 0 12px;
    height: 36px;
    transition: border-color var(--transition), background var(--transition);
}

.contact-form input:focus,
.contact-form textarea:focus {
    outline: none;
    border-color: var(--color-primary);
    background: var(--color-white);
}

.contact-form textarea {
    height: 64px;
    padding: 10px 12px;
    resize: vertical;
    min-height: 64px;
}

.contact-form .btn-submit {
    width: 100%;
    height: 40px;
    margin-top: 8px;
    font-size: 14px;
}

/* ── 响应式 ──────────────────────────────────────────────── */
@media (max-width: 1024px) {
    .page-hero-title { font-size: 36px; }
    .products-grid { grid-template-columns: repeat(2, 1fr); }
    .contact-cards { grid-template-columns: repeat(2, 1fr); }
    .product-detail-top { grid-template-columns: 1fr; }
    .product-detail-image img { height: 280px; }
}

@media (max-width: 768px) {
    .page-hero { padding: 48px 0; }
    .page-hero-title { font-size: 28px; }
    .section { padding: 56px 0; }
    .products-grid { gap: 14px; }
    .pagination { margin-top: 32px; gap: 6px; }
    .pagination-info { width: 100%; text-align: center; margin: 8px 0 0; }
    .product-name { font-size: 14px; padding: 12px; }
    .contact-form-wrap { padding: 24px 16px; }
    .contact-form .form-row { grid-template-columns: 1fr; gap: 16px; }
}

@media (max-width: 480px) {
    .products-grid { grid-template-columns: 1fr 1fr; gap: 12px; }
    .contact-cards { grid-template-columns: 1fr 1fr; gap: 14px; }
}