/**
 * 二手车商城 - 前台展示页样式
 */

/* 顶部导航 */
.navbar {
    background: white;
    box-shadow: var(--shadow);
    position: sticky;
    top: 0;
    z-index: 100;
}

.navbar-inner {
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 24px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 64px;
}

.navbar-logo {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 20px;
    font-weight: 700;
    color: var(--primary);
    text-decoration: none;
}

.navbar-logo-icon {
    width: 36px;
    height: 36px;
    background: var(--primary);
    border-radius: var(--radius);
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 18px;
}

.navbar-nav {
    display: flex;
    align-items: center;
    gap: 8px;
}

.nav-link {
    padding: 8px 16px;
    border-radius: var(--radius);
    color: var(--gray-600);
    text-decoration: none;
    font-size: 14px;
    font-weight: 500;
    transition: var(--transition);
}

.nav-link:hover,
.nav-link.active {
    color: var(--primary);
    background: var(--primary-light);
}

/* Hero区域 */
.hero {
    background: linear-gradient(135deg, var(--primary) 0%, #3b82f6 100%);
    color: white;
    padding: 60px 24px;
    text-align: center;
}

.hero-title {
    font-size: 36px;
    font-weight: 700;
    margin-bottom: 12px;
}

.hero-subtitle {
    font-size: 16px;
    opacity: 0.9;
    margin-bottom: 32px;
}

.hero-search {
    max-width: 640px;
    margin: 0 auto;
    display: flex;
    gap: 0;
    background: white;
    border-radius: var(--radius-xl);
    overflow: hidden;
    box-shadow: var(--shadow-lg);
}

.hero-search-input {
    flex: 1;
    border: none;
    padding: 16px 24px;
    font-size: 15px;
    outline: none;
    color: var(--gray-800);
}

.hero-search-input::placeholder {
    color: var(--gray-400);
}

.hero-search-btn {
    padding: 16px 28px;
    background: var(--primary);
    color: white;
    border: none;
    font-size: 15px;
    font-weight: 500;
    cursor: pointer;
    transition: var(--transition);
}

.hero-search-btn:hover {
    background: var(--primary-dark);
}

.hero-stats {
    display: flex;
    justify-content: center;
    gap: 48px;
    margin-top: 40px;
}

.hero-stat {
    text-align: center;
}

.hero-stat-value {
    font-size: 28px;
    font-weight: 700;
}

.hero-stat-label {
    font-size: 14px;
    opacity: 0.8;
    margin-top: 4px;
}

/* 筛选栏 */
.filter-bar {
    background: white;
    border-bottom: 1px solid var(--gray-200);
    padding: 16px 24px;
    position: sticky;
    top: 64px;
    z-index: 99;
}

.filter-bar-inner {
    max-width: 1280px;
    margin: 0 auto;
    display: flex;
    align-items: center;
    gap: 16px;
    flex-wrap: wrap;
}

.filter-scroll-row {
    display: flex;
    align-items: center;
    gap: 16px;
}

.filter-group {
    display: flex;
    align-items: center;
    gap: 8px;
}

.filter-label {
    font-size: 13px;
    color: var(--gray-500);
    white-space: nowrap;
}

.filter-select {
    padding: 7px 12px;
    border: 1px solid var(--gray-300);
    border-radius: var(--radius);
    font-size: 13px;
    background: white;
    color: var(--gray-700);
    cursor: pointer;
    min-width: 100px;
}

.filter-select:focus {
    outline: none;
    border-color: var(--primary);
}

.filter-sort {
    margin-left: auto;
    display: flex;
    align-items: center;
    gap: 8px;
}

.sort-btn {
    padding: 7px 14px;
    border: 1px solid var(--gray-300);
    border-radius: var(--radius);
    background: white;
    font-size: 13px;
    color: var(--gray-600);
    cursor: pointer;
    transition: var(--transition);
}

.sort-btn:hover,
.sort-btn.active {
    border-color: var(--primary);
    color: var(--primary);
    background: var(--primary-light);
}

/* 主内容区 */
.main-content {
    max-width: 1280px;
    margin: 0 auto;
    padding: 24px;
}

/* 车辆网格 */
.car-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 24px;
}

/* 车辆卡片 */
.car-card {
    background: white;
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow);
    transition: var(--transition);
    cursor: pointer;
}

.car-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
}

.car-card-image {
    position: relative;
    aspect-ratio: 4/3;
    overflow: hidden;
}

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

.car-card:hover .car-card-image img {
    transform: scale(1.05);
}

.car-card-badge {
    position: absolute;
    top: 12px;
    left: 12px;
    display: flex;
    gap: 6px;
    flex-wrap: wrap;
}

.car-card-favorite {
    position: absolute;
    top: 12px;
    right: 12px;
    width: 36px;
    height: 36px;
    background: rgba(255, 255, 255, 0.9);
    border: none;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    font-size: 18px;
    transition: var(--transition);
    backdrop-filter: blur(4px);
}

.car-card-favorite:hover {
    background: white;
    transform: scale(1.1);
}

.car-card-favorite.active {
    color: var(--danger);
}

.car-card-content {
    padding: 16px;
}

.car-card-title {
    font-size: 15px;
    font-weight: 600;
    color: var(--gray-800);
    line-height: 1.4;
    margin-bottom: 10px;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
    min-height: 42px;
}

.car-card-meta {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 12px;
    flex-wrap: wrap;
}

.car-card-meta-item {
    font-size: 13px;
    color: var(--gray-500);
    display: flex;
    align-items: center;
    gap: 4px;
}

.car-card-meta-dot {
    width: 3px;
    height: 3px;
    background: var(--gray-400);
    border-radius: 50%;
}

.car-card-price-row {
    display: flex;
    align-items: baseline;
    justify-content: space-between;
    padding-top: 12px;
    border-top: 1px solid var(--gray-100);
}

.car-card-price {
    font-size: 20px;
    font-weight: 700;
    color: var(--danger);
}

.car-card-price-unit {
    font-size: 13px;
    font-weight: 400;
    margin-left: 2px;
}

.car-card-original-price {
    font-size: 13px;
    color: var(--gray-400);
    text-decoration: line-through;
}

.car-card-location {
    font-size: 13px;
    color: var(--gray-500);
    display: flex;
    align-items: center;
    gap: 4px;
}

/* 车辆详情页 */
.detail-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 24px;
}

.detail-header {
    margin-bottom: 24px;
}

.detail-header h1 {
    font-size: 24px;
    font-weight: 700;
    margin-bottom: 8px;
}

.detail-header-meta {
    display: flex;
    align-items: center;
    gap: 16px;
    color: var(--gray-500);
    font-size: 14px;
}

.detail-grid {
    display: grid;
    grid-template-columns: 1fr 380px;
    gap: 24px;
}

.detail-gallery {
    background: white;
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow);
}

.detail-gallery-main {
    aspect-ratio: 16/10;
    overflow: hidden;
}

.detail-gallery-main img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.detail-gallery-thumbs {
    display: flex;
    gap: 8px;
    padding: 12px;
    overflow-x: auto;
}

.detail-gallery-thumb {
    width: 80px;
    height: 60px;
    border-radius: var(--radius);
    overflow: hidden;
    cursor: pointer;
    border: 2px solid transparent;
    flex-shrink: 0;
}

.detail-gallery-thumb.active {
    border-color: var(--primary);
}

.detail-gallery-thumb img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.detail-info {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.detail-price-card {
    background: white;
    border-radius: var(--radius-lg);
    padding: 24px;
    box-shadow: var(--shadow);
}

.detail-price-main {
    font-size: 32px;
    font-weight: 700;
    color: var(--danger);
    margin-bottom: 8px;
}

.detail-price-original {
    font-size: 15px;
    color: var(--gray-400);
    text-decoration: line-through;
}

.detail-price-save {
    margin-top: 8px;
    font-size: 14px;
    color: var(--success);
}

.detail-contact-card {
    background: white;
    border-radius: var(--radius-lg);
    padding: 24px;
    box-shadow: var(--shadow);
}

.detail-contact-title {
    font-size: 16px;
    font-weight: 600;
    margin-bottom: 16px;
}

.detail-contact-item {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 12px;
    font-size: 14px;
}

.detail-contact-icon {
    width: 36px;
    height: 36px;
    background: var(--primary-light);
    border-radius: var(--radius);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--primary);
    font-size: 16px;
}

.detail-specs {
    background: white;
    border-radius: var(--radius-lg);
    padding: 24px;
    box-shadow: var(--shadow);
}

.detail-specs-title {
    font-size: 18px;
    font-weight: 600;
    margin-bottom: 16px;
}

.detail-specs-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 16px;
}

.detail-spec-item {
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.detail-spec-label {
    font-size: 13px;
    color: var(--gray-500);
}

.detail-spec-value {
    font-size: 15px;
    font-weight: 500;
    color: var(--gray-800);
}

.detail-description {
    background: white;
    border-radius: var(--radius-lg);
    padding: 24px;
    box-shadow: var(--shadow);
    margin-top: 20px;
}

.detail-description-title {
    font-size: 18px;
    font-weight: 600;
    margin-bottom: 12px;
}

.detail-description-text {
    font-size: 14px;
    line-height: 1.8;
    color: var(--gray-600);
}

/* 分享卡片 */
.detail-share-card {
    background: white;
    border-radius: var(--radius-lg);
    padding: 20px;
    box-shadow: var(--shadow);
    margin-top: 16px;
}

.share-buttons {
    display: flex;
    gap: 10px;
    flex-wrap: wrap;
}

.share-btn {
    flex: 1;
    min-width: 80px;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 6px;
    padding: 12px 8px;
    border: 1px solid var(--gray-200);
    border-radius: var(--radius);
    background: white;
    cursor: pointer;
    transition: var(--transition);
    font-size: 13px;
    color: var(--gray-700);
}

.share-btn:hover {
    border-color: var(--primary);
    background: var(--primary-light);
    color: var(--primary);
}

.share-btn-icon {
    font-size: 22px;
}

/* 底部 */
.footer {
    background: var(--gray-900);
    color: var(--gray-400);
    padding: 40px 24px 24px;
    margin-top: 60px;
}

.footer-inner {
    max-width: 1280px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 32px;
}

.footer-section h4 {
    color: white;
    font-size: 16px;
    font-weight: 600;
    margin-bottom: 16px;
}

.footer-section p,
.footer-section a {
    font-size: 14px;
    line-height: 2;
    color: var(--gray-400);
    text-decoration: none;
    display: block;
}

.footer-section a:hover {
    color: white;
}

.footer-bottom {
    max-width: 1280px;
    margin: 32px auto 0;
    padding-top: 24px;
    border-top: 1px solid var(--gray-800);
    text-align: center;
    font-size: 13px;
}

/* 备案号 */
.footer-icp {
    margin-top: 8px;
    font-size: 12px;
}

.footer-icp a,
.admin-sidebar-icp a,
.mine-icp a {
    color: var(--gray-500);
    text-decoration: none;
    transition: color 0.2s;
}

.footer-icp a:hover {
    color: var(--gray-300);
}

/* 移动端底部导航 */
.mobile-nav {
    display: none;
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    background: white;
    box-shadow: 0 -2px 10px rgba(0, 0, 0, 0.1);
    z-index: 100;
    padding-bottom: env(safe-area-inset-bottom);
}

.mobile-nav-inner {
    display: flex;
    justify-content: space-around;
    padding: 8px 0;
}

.mobile-nav-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 2px;
    padding: 4px 12px;
    color: var(--gray-500);
    text-decoration: none;
    font-size: 11px;
    transition: var(--transition);
}

.mobile-nav-item.active {
    color: var(--primary);
}

.mobile-nav-icon {
    font-size: 22px;
}

/* 响应式 */
@media (max-width: 1024px) {
    .detail-grid {
        grid-template-columns: 1fr;
    }

    .detail-info {
        flex-direction: row;
        flex-wrap: wrap;
    }

    .detail-info > * {
        flex: 1;
        min-width: 280px;
    }
}

@media (max-width: 768px) {
    .navbar-inner {
        padding: 0 16px;
        height: 52px;
    }

    .navbar-logo {
        font-size: 16px;
    }

    .navbar-logo-icon {
        width: 32px;
        height: 32px;
        font-size: 16px;
    }

    .navbar-nav {
        display: none;
    }

    .hero {
        padding: 32px 16px 28px;
    }

    .hero-title {
        font-size: 22px;
    }

    .hero-subtitle {
        font-size: 14px;
        margin-bottom: 20px;
    }

    .hero-search {
        flex-direction: row;
        border-radius: var(--radius-xl);
    }

    .hero-search-input {
        padding: 12px 16px;
        font-size: 14px;
    }

    .hero-search-btn {
        padding: 12px 18px;
        font-size: 14px;
        white-space: nowrap;
    }

    .hero-stats {
        gap: 20px;
        margin-top: 20px;
    }

    .hero-stat-value {
        font-size: 18px;
    }

    .hero-stat-label {
        font-size: 12px;
    }

    .filter-bar {
        padding: 10px 0;
        top: 52px;
    }

    .filter-bar-inner {
        gap: 0;
        flex-direction: column;
    }

    .filter-scroll-row {
        display: flex;
        gap: 8px;
        padding: 0 12px 8px;
        overflow-x: auto;
        -webkit-overflow-scrolling: touch;
        scrollbar-width: none;
        flex-wrap: nowrap;
    }

    .filter-scroll-row::-webkit-scrollbar {
        display: none;
    }

    .filter-group {
        flex: none;
        min-width: auto;
        display: flex;
        align-items: center;
        gap: 6px;
        background: #f5f5f5;
        padding: 6px 10px;
        border-radius: 16px;
        white-space: nowrap;
    }

    .filter-label {
        font-size: 12px;
        color: #666;
    }

    .filter-select {
        width: auto;
        min-width: auto;
        border: none;
        background: transparent;
        padding: 0;
        font-size: 13px;
        font-weight: 500;
        color: #333;
        appearance: none;
        -webkit-appearance: none;
        padding-right: 14px;
        background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath fill='%23666' d='M6 8L1 3h10z'/%3E%3C/svg%3E");
        background-repeat: no-repeat;
        background-position: right center;
    }

    .filter-sort {
        width: 100%;
        margin-left: 0;
        display: flex;
        gap: 0;
        padding: 0 12px;
        overflow-x: auto;
        -webkit-overflow-scrolling: touch;
        scrollbar-width: none;
    }

    .filter-sort::-webkit-scrollbar {
        display: none;
    }

    .sort-btn {
        flex-shrink: 0;
        padding: 6px 12px;
        font-size: 12px;
        border: none;
        background: transparent;
        color: #666;
        position: relative;
        white-space: nowrap;
    }

    .sort-btn.active {
        background: transparent;
        color: #ff9500;
        font-weight: 600;
    }

    .sort-btn.active::after {
        content: '';
        position: absolute;
        bottom: 0;
        left: 50%;
        transform: translateX(-50%);
        width: 16px;
        height: 2px;
        background: #ff9500;
        border-radius: 1px;
    }

    .main-content {
        padding: 12px;
        padding-bottom: 80px;
    }

    .car-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 10px;
    }

    .car-card {
        border-radius: 10px;
    }

    .car-card-image {
        aspect-ratio: 16/10;
    }

    .car-card-content {
        padding: 10px;
    }

    .car-card-title {
        font-size: 13px;
        min-height: 34px;
        margin-bottom: 6px;
        line-height: 1.35;
    }

    .car-card-meta {
        gap: 4px;
        margin-bottom: 6px;
    }

    .car-card-meta-item {
        font-size: 11px;
    }

    .car-card-meta-dot {
        width: 2px;
        height: 2px;
    }

    .car-card-price-row {
        padding-top: 8px;
    }

    .car-card-price {
        font-size: 16px;
    }

    .car-card-price-unit {
        font-size: 12px;
    }

    .car-card-original-price {
        font-size: 11px;
    }

    .car-card-location {
        font-size: 11px;
    }

    .car-card-favorite {
        width: 32px;
        height: 32px;
        font-size: 16px;
    }

    .car-card-badge .tag {
        font-size: 10px;
        padding: 2px 6px;
    }

    .detail-container {
        padding: 16px;
    }

    .detail-header h1 {
        font-size: 18px;
    }

    .detail-specs-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 12px;
    }

    .footer {
        padding: 24px 16px 88px;
    }

    .footer-inner {
        gap: 20px;
    }

    .footer-section h4 {
        font-size: 14px;
    }

    .footer-section p,
    .footer-section a {
        font-size: 12px;
        line-height: 1.8;
    }

    .footer-bottom {
        font-size: 11px;
    }

    .mobile-nav {
        display: block;
    }

    .mobile-nav-inner {
        padding: 6px 0 8px;
    }

    .mobile-nav-item {
        gap: 2px;
        padding: 2px 8px;
    }

    .mobile-nav-icon {
        font-size: 20px;
    }

    .empty-state {
        padding: 48px 20px;
    }

    .empty-state-icon {
        font-size: 40px;
    }

    .empty-state-title {
        font-size: 15px;
    }
}

@media (max-width: 480px) {
    .car-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 8px;
    }

    .hero-title {
        font-size: 20px;
    }

    .hero-search {
        border-radius: var(--radius-lg);
    }

    .hero-search-input {
        padding: 10px 14px;
    }

    .hero-search-btn {
        padding: 10px 14px;
    }
}