/**
 * 沁园汝瓷 - 首页专属样式
 * 基于设计图精确实现，支持1920px宽度标准和完整响应式设计
 */

/* ==================== 主横幅 Hero Banner ==================== */
.hero-banner {
    width: 100%;
    height: 900px;
    position: relative;
    overflow: hidden;
}

.hero-banner-img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: center;
    display: block;
}

.hero-banner-content {
    position: absolute;
    left: 260px;
    top: 300px;
    z-index: 2;
}

.hero-banner-title {
    font-size: 85px;
    font-weight: 400;
    color: #15464E;
    line-height: 1.4;
    margin: 0 0 20px;
    letter-spacing: 4px;
}

.hero-banner-subtitle {
    font-size: 30px;
    color: #15464E;
    margin: 0;
    letter-spacing: 2px;
}

/* ==================== 区块标题通用样式 ==================== */
.section-title {
    text-align: center;
    font-size: 40px;
    margin-bottom: 50px;
}

.section-title.left-aligned {
    text-align: left;
}

.section-title h2 {
    font-family: var(--font-family-serif);
    color: var(--color-text-primary);
    font-weight: var(--font-weight-semibold);
    margin-bottom: 12px;
    font-size: 40px;
}

.section-title .sub-title {
    font-size: var(--font-size-md);
    color: var(--color-primary);
    letter-spacing: var(--letter-spacing-sm);
    margin-bottom: 15px;
    text-transform: uppercase;
}

.section-title .divider {
    width: 60px;
    height: 3px;
    background-color: var(--color-primary);
    margin: 0 auto;
    border-radius: 2px;
}

.section-title.left-aligned .divider {
    margin-left: 0;
}

/* ==================== 品牌简介 ==================== */
.section-brand-intro {
    background-color: var(--color-bg-primary);
    padding: var(--section-padding);
}

.brand-intro-content {
    display: flex;
    align-items: center;
    gap: 40px;
}

.brand-intro-image {
    flex: 0 0 700px;
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-md);
}

.brand-intro-image img {
    width: 100%;
    height: auto;
    display: block;
    transition: transform var(--transition-slow);
}

.brand-intro-image:hover img {
    transform: scale(1.03);
}

.brand-intro-text {
    flex: 1;
}

.brand-intro-features {
    font-family: "Source Han Serif CN", "Source Han Serif CN", serif;
    font-weight: 500;
    font-size: 22px;
    color: var(--color-primary);
    line-height: 50px;
    text-align: left;
    font-style: normal;
    text-transform: none;
    margin-bottom: 20px;
}

.brand-intro-desc1 {
    font-family: "Source Han Serif CN", "Source Han Serif CN", serif;
    font-weight: bold;
    font-size: 24px;
    color: #5D5F60;
    line-height: 50px;
    text-align: left;
    font-style: normal;
    text-transform: none;
    margin-bottom: 20px;
}

.brand-intro-desc {
    font-family: "Source Han Serif CN", "Source Han Serif CN", serif;
    font-weight: 500;
    font-size: 24px;
    color: #5D5F60;
    line-height: 50px;
    text-align: left;
    font-style: normal;
    text-transform: none;
    margin-bottom: 20px;
}

.brand-intro-desc:last-of-type {
    line-height: 44px;
}

/* ==================== 匠心特色展示 ==================== */
.section-features {
    background-color: var(--color-bg-primary);
    padding: var(--section-padding);
}

.section-features .section-title .divider {
    margin: 20px auto;
}

.section-features .section-title .sub-title {
    max-width: 900px;
    margin-left: auto;
    margin-right: auto;
    color: #5D5F60;
    font-size: 20px;
    line-height: 1.6;
}

.section-features .highlight-text {
    color: var(--color-primary);
    font-size: 20px;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 60px 40px;
}

.feature-item {
    display: flex;
    flex-direction: column;
    gap: 0;
    align-items: stretch;
    background-color: #F9F6F2;
    border: 1px solid #E9E9E9;
    border-radius: 10px;
    overflow: hidden;
}

.feature-text {
    order: 2;
    padding: 24px 32px;
}

.feature-text h3 {
    font-family: "Source Han Serif CN", "Source Han Serif CN", serif;
    font-size: 34px;
    color: var(--color-primary);
    font-weight: 500;
    margin-bottom: 16px;
}

.feature-text p {
    font-size: 16px;
    color: #5D5F60;
    line-height: 1.8;
    margin-bottom: 16px;
}

.feature-divider {
    width: 100%;
    height: 0;
    border-top: 1px dashed #D2A866;
    margin-bottom: 16px;
}

.feature-tags {
    display: flex;
    gap: 20px;
    flex-wrap: wrap;
}

.feature-tags span {
    font-size: 16px;
    color: #5D5F60;
}

.feature-image {
    order: 1;
    overflow: hidden;
    border-radius: 0;
    mask-image: linear-gradient(to right, transparent 0%, black 50px);
    -webkit-mask-image: linear-gradient(to right, transparent 0%, black 50px);
}

.feature-image img {
    width: 100%;
    height: 100%;
    display: block;
    object-fit: cover;
    border-radius: 0;
    transition: transform var(--transition-slow);
}

.feature-item:hover .feature-image img {
    transform: scale(1.03);
}

/* ==================== 匠人介绍 ==================== */
.section-artisan {
    padding: var(--section-padding);
}

.artisan-content {
    display: flex;
    align-items: center;
    gap: 60px;
}

.artisan-image {
    flex: 0 0 40%;
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-md);
}

.artisan-image img {
    width: 100%;
    height: auto;
    display: block;
}

.artisan-text {
    flex: 1;
}

.artisan-info {
    margin-bottom: 30px;
}

.artisan-info h3 {
    font-family: var(--font-family-serif);
    font-size: 28px;
    color: var(--color-primary);
    font-weight: var(--font-weight-semibold);
    margin-bottom: 12px;
}

.artisan-title {
    font-size: var(--font-size-md);
    color: var(--color-text-secondary);
    margin-bottom: 15px;
}

.artisan-divider {
    width: 40px;
    height: 2px;
    background-color: var(--color-primary);
    margin-bottom: 20px;
}

.artisan-info .artisan-desc {
    font-size: 20px;
    color: var(--color-text-secondary);
    line-height: 1.8;
    margin-bottom: 24px;
}

.btn.btn-filled {
    background-color: var(--color-primary);
    color: #fff;
    border-color: var(--color-primary);
    padding: 12px 67px;
}

.btn.btn-filled:hover {
    background-color: var(--color-primary);
    color: #fff;
    opacity: 0.9;
}

/* ==================== 产品体系 ==================== */
.section-products {
    background-color: var(--color-bg-primary);
    padding: var(--section-padding);
}

.products-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
    margin-bottom: 50px;
}

.product-card {
    position: relative;
    border-radius: var(--radius-lg);
    overflow: hidden;
    background-color: #f5f5f5;
    transition: all var(--transition-fast);
    cursor: pointer;
}

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

/* 第一行：2列大卡片 */
.product-card-large {
    grid-column: span 2;
    aspect-ratio: 2/1;
}

/* 第二行：4列小卡片 */
.product-card-small {
    grid-column: span 1;
    aspect-ratio: 1/1;
}

.product-bg {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
}

.product-bg img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform var(--transition-slow);
}

.product-card:hover .product-bg img {
    transform: scale(1.05);
}

.product-text {
    position: relative;
    z-index: 1;
    padding: 30px;
    height: 100%;
    display: flex;
    flex-direction: column;
    justify-content: flex-start;
}

.product-card-large .product-text {
    padding: 40px;
}

.product-text h3 {
    font-family: var(--font-family-serif);
    font-size: 30px;
    color: var(--color-text-primary);
    font-weight: var(--font-weight-semibold);
    margin-bottom: 12px;
}

.product-card-small .product-text h3 {
    font-size: 30px;
}

.product-divider {
    width: 30px;
    height: 2px;
    background-color: #7B7B7B;
    margin-bottom: 12px;
}

.product-text p {
    font-size: 16px;
    color: #7B7B7B;
    line-height: 1.6;
    margin: 0;
    white-space: pre-wrap;
}

.products-actions {
    display: flex;
    justify-content: center;
    gap: 20px;
}

/* ==================== 移动端服务 ==================== */
.section-mobile-service {
    padding: var(--section-padding);
}

.mobile-service-content {
    display: flex;
    align-items: center;
    gap: 60px;
}

.mobile-service-text {
    flex: 1;
}

.mobile-desc {
    font-size: 36px;
    color: var(--color-primary);
    font-weight: var(--font-weight-semibold);
    margin-bottom: 8px;
}

.mobile-desc-highlight {
    font-size: 28px;
    color: var(--color-primary);
    font-weight: var(--font-weight-medium);
    margin-bottom: 20px;
}

.mobile-desc-detail {
    font-size: 24px;
    color: #5D5F60;
    line-height: 1.8;
    margin-bottom: 30px;
}

.mobile-features {
    display: flex;
    align-items: center;
    gap: 16px;
    margin-bottom: 30px;
}

.mobile-feature-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 10px;
}

.mobile-feature-icon {
    width: 56px;
    height: 56px;
    display: flex;
    align-items: center;
    justify-content: center;
    background-color: #E9E9E9;
    border-radius: 50%;
}

.mobile-feature-icon img {
    width: 28px;
    height: 28px;
}

.mobile-feature-arrow {
    display: flex;
    align-items: center;
    padding-bottom: 24px;
}

.mobile-feature-arrow img {
    width: 20px;
    height: 20px;
}

.mobile-feature-item span {
    font-size: var(--font-size-base);
    color: var(--color-text-secondary);
}

.mobile-service-image {
    flex: 0 0 35%;
    text-align: center;
}

.mobile-service-image img {
    max-width: 100%;
    height: auto;
}

/* ==================== 按钮样式 ==================== */
.btn {
    display: inline-block;
    padding: 12px 30px;
    border-radius: 4px;
    border: 1px solid var(--color-primary);
    font-family: "Source Han Serif CN", "Source Han Serif CN", serif;
    font-weight: 500;
    font-size: 24px;
    color: var(--color-primary);
    line-height: 35px;
    text-align: center;
    font-style: normal;
    text-transform: none;
    transition: all var(--transition-fast);
    cursor: pointer;
    text-decoration: none;
    min-height: 44px;
}

.btn-primary {
    background-color: #fff;
    color: var(--color-primary);
    border: 1px solid var(--color-primary);
    font-size: 24px;
}

.btn-primary:hover {
    background-color: var(--color-primary);
    color: #fff;
    transform: translateY(-2px);
    box-shadow: 0 5px 20px rgba(66, 147, 157, 0.3);
}

.btn-outline {
    background-color: var(--color-primary);
    color: #fff;
    border: 1px solid var(--color-primary);
    font-size: 24px;
}

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

/* ==================== 桌面端特色卡片横向布局 ==================== */
@media (min-width: 993px) {
    .feature-item {
        flex-direction: row;
        align-items: stretch;
        gap: 0;
    }

    .feature-text {
        order: 1;
        flex: 0 0 55%;
        padding: 32px 40px;
    }

    .feature-image {
        order: 2;
        flex: 0 0 45%;
    }
}

/* ==================== 响应式 - 平板设备 ==================== */
@media (max-width: 992px) {
    .hero-banner {
        height: 500px;
    }

    .hero-banner-content {
        left: 60px;
        right: 60px;
        top: 120px;
    }

    .hero-banner-title {
        font-size: 52px;
    }

    .hero-banner-subtitle {
        font-size: 22px;
    }

    .container {
        max-width: 100%;
        padding: 0 30px;
    }

    .section-title h2 {
        font-size: 32px;
    }

    .section-features .section-title .sub-title {
        font-size: 16px;
    }

    .brand-intro-content,
    .artisan-content,
    .mobile-service-content {
        flex-direction: column;
        gap: 30px;
    }

    .brand-intro-image,
    .artisan-image,
    .mobile-service-image {
        flex: 0 0 auto;
        width: 100%;
        max-width: 100%;
    }

    .brand-intro-image img {
        width: 100%;
        height: auto;
    }

    .brand-intro-desc1 {
        font-size: 20px;
        line-height: 1.6;
    }

    .brand-intro-desc {
        font-size: 18px;
        line-height: 1.7;
    }

    .brand-intro-features {
        font-size: 18px;
        line-height: 1.8;
    }

    .features-grid {
        grid-template-columns: 1fr;
        gap: 30px;
    }

    .feature-item {
        flex-direction: column;
    }

    .feature-text,
    .feature-image {
        flex: 0 0 auto;
        width: 100%;
    }

    .feature-text {
        padding: 20px 24px;
    }

    .feature-text h3 {
        font-size: 28px;
    }

    .feature-image {
        mask-image: none;
        -webkit-mask-image: none;
    }

    .feature-image img {
        aspect-ratio: 16/9;
    }

    .artisan-info h3 {
        font-size: 24px;
    }

    .artisan-info .artisan-desc {
        font-size: 17px;
        line-height: 1.7;
    }

    .products-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .product-card-large,
    .product-card-small {
        grid-column: span 1;
        aspect-ratio: 4/3;
    }

    .product-text {
        padding: 20px;
    }

    .product-card-large .product-text {
        padding: 24px;
    }

    .product-text h3 {
        font-size: 22px;
    }

    .mobile-desc {
        font-size: 28px;
    }

    .mobile-desc-highlight {
        font-size: 22px;
    }

    .mobile-desc-detail {
        font-size: 18px;
        line-height: 1.7;
    }

    .btn {
        font-size: 18px;
        padding: 10px 24px;
    }

    .btn-primary,
    .btn-outline {
        font-size: 18px;
    }
}

/* ==================== 响应式 - 手机设备 ==================== */
@media (max-width: 768px) {
    .hero-banner {
        height: 350px;
    }

    .hero-banner-content {
        left: 30px;
        right: 30px;
        top: 80px;
    }

    .hero-banner-title {
        font-size: 36px;
        letter-spacing: 2px;
    }

    .hero-banner-subtitle {
        font-size: 16px;
        letter-spacing: 1px;
    }

    .container {
        padding: 0 20px;
    }

    .section {
        padding: var(--section-padding-sm);
    }

    .section-title {
        margin-bottom: 30px;
    }

    .section-title h2 {
        font-size: 26px;
    }

    .section-title .sub-title {
        font-size: 14px;
    }

    .section-features .section-title .sub-title {
        font-size: 14px;
        line-height: 1.6;
    }

    .brand-intro-desc1 {
        font-size: 18px;
        line-height: 1.6;
    }

    .brand-intro-desc {
        font-size: 16px;
        line-height: 1.7;
    }

    .brand-intro-features {
        font-size: 15px;
        line-height: 1.8;
    }

    .features-grid {
        grid-template-columns: 1fr;
        gap: 20px;
    }

    .feature-text {
        padding: 16px 20px;
    }

    .feature-text h3 {
        font-size: 24px;
    }

    .feature-text p {
        font-size: 14px;
    }

    .feature-tags span {
        font-size: 14px;
    }

    .products-grid {
        grid-template-columns: 1fr;
        gap: 16px;
    }

    .product-card-large,
    .product-card-small {
        grid-column: span 1;
        aspect-ratio: 4/3;
    }

    .product-text {
        padding: 16px;
    }

    .product-text h3 {
        font-size: 20px;
    }

    .product-text p {
        font-size: 14px;
    }

    .products-actions {
        flex-direction: column;
        align-items: center;
        gap: 12px;
    }

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

    .artisan-info h3 {
        font-size: 22px;
    }

    .artisan-info .artisan-desc {
        font-size: 15px;
        line-height: 1.7;
    }

    .mobile-desc {
        font-size: 24px;
    }

    .mobile-desc-highlight {
        font-size: 18px;
    }

    .mobile-desc-detail {
        font-size: 15px;
        line-height: 1.7;
    }

    .mobile-features {
        flex-direction: row;
        flex-wrap: wrap;
        gap: 12px;
    }

    .mobile-feature-item span {
        font-size: 13px;
    }

    .mobile-feature-icon {
        width: 48px;
        height: 48px;
    }

    .mobile-feature-icon img {
        width: 24px;
        height: 24px;
    }

    .mobile-feature-arrow {
        display: none;
    }

    .btn {
        font-size: 16px;
        padding: 10px 20px;
        min-height: 44px;
    }

    .btn-primary,
    .btn-outline {
        font-size: 16px;
    }
}

/* ==================== 响应式 - 小屏手机 ==================== */
@media (max-width: 480px) {
    .hero-banner {
        height: 280px;
    }

    .hero-banner-content {
        left: 20px;
        right: 20px;
        top: 60px;
    }

    .hero-banner-title {
        font-size: 28px;
        letter-spacing: 2px;
        margin-bottom: 10px;
    }

    .hero-banner-subtitle {
        font-size: 14px;
    }

    .container {
        padding: 0 15px;
    }

    .section-title {
        margin-bottom: 25px;
    }

    .section-title h2 {
        font-size: 22px;
    }

    .section-title .divider {
        width: 40px;
    }

    .brand-intro-desc1 {
        font-size: 16px;
        margin-bottom: 12px;
    }

    .brand-intro-desc {
        font-size: 14px;
        line-height: 1.6;
        margin-bottom: 12px;
    }

    .brand-intro-features {
        font-size: 13px;
        line-height: 1.6;
    }

    .feature-text {
        padding: 15px 18px;
    }

    .feature-text h3 {
        font-size: 20px;
        margin-bottom: 8px;
    }

    .feature-text p {
        font-size: 13px;
    }

    .feature-tags {
        gap: 10px;
    }

    .feature-tags span {
        font-size: 12px;
    }

    .feature-divider {
        margin-bottom: 10px;
    }

    .artisan-info h3 {
        font-size: 20px;
    }

    .artisan-info .artisan-desc {
        font-size: 14px;
        margin-bottom: 16px;
    }

    .products-grid {
        gap: 12px;
    }

    .product-text {
        padding: 12px;
    }

    .product-text h3 {
        font-size: 18px;
        margin-bottom: 6px;
    }

    .product-text p {
        font-size: 13px;
    }

    .product-divider {
        margin-bottom: 6px;
    }

    .mobile-desc {
        font-size: 20px;
    }

    .mobile-desc-highlight {
        font-size: 16px;
    }

    .mobile-desc-detail {
        font-size: 14px;
    }

    .mobile-feature-item span {
        font-size: 12px;
    }

    .mobile-feature-icon {
        width: 42px;
        height: 42px;
    }

    .mobile-feature-icon img {
        width: 22px;
        height: 22px;
    }

    .btn {
        padding: 10px 20px;
        font-size: 15px;
        letter-spacing: normal;
    }

    .btn-primary,
    .btn-outline {
        font-size: 15px;
    }
}

/* ==================== 响应式 - 小屏手机 375px ==================== */
@media (max-width: 375px) {
    .hero-banner {
        height: 240px;
    }

    .hero-banner-content {
        left: 15px;
        right: 15px;
        top: 50px;
    }

    .hero-banner-title {
        font-size: 24px;
        margin-bottom: 8px;
    }

    .hero-banner-subtitle {
        font-size: 13px;
    }

    .section-title h2 {
        font-size: 20px;
    }

    .section-title .sub-title {
        font-size: 12px;
    }

    .brand-intro-desc {
        font-size: 13px;
    }

    .brand-intro-features {
        font-size: 12px;
    }

    .feature-text h3 {
        font-size: 18px;
    }

    .product-text h3 {
        font-size: 17px;
    }

    .artisan-info h3 {
        font-size: 18px;
    }

    .artisan-info .artisan-desc {
        font-size: 13px;
    }

    .mobile-desc {
        font-size: 18px;
    }

    .mobile-desc-highlight {
        font-size: 15px;
    }

    .mobile-desc-detail {
        font-size: 13px;
    }
}

/* ==================== 响应式 - 极小小屏 320px ==================== */
@media (max-width: 320px) {
    .hero-banner {
        height: 200px;
    }

    .hero-banner-content {
        left: 12px;
        right: 12px;
        top: 40px;
    }

    .hero-banner-title {
        font-size: 20px;
        letter-spacing: 1px;
        margin-bottom: 6px;
    }

    .hero-banner-subtitle {
        font-size: 11px;
    }

    .section-title h2 {
        font-size: 18px;
    }

    .brand-intro-desc1 {
        font-size: 14px;
    }

    .brand-intro-desc {
        font-size: 12px;
    }

    .brand-intro-features {
        font-size: 11px;
    }

    .feature-text {
        padding: 12px 14px;
    }

    .feature-text h3 {
        font-size: 17px;
    }

    .feature-text p {
        font-size: 12px;
    }

    .feature-tags span {
        font-size: 11px;
    }

    .product-text {
        padding: 10px;
    }

    .product-text h3 {
        font-size: 16px;
    }

    .product-text p {
        font-size: 12px;
    }

    .artisan-info h3 {
        font-size: 17px;
    }

    .artisan-info .artisan-desc {
        font-size: 12px;
        margin-bottom: 12px;
    }

    .mobile-desc {
        font-size: 16px;
    }

    .mobile-desc-highlight {
        font-size: 14px;
    }

    .mobile-desc-detail {
        font-size: 12px;
    }

    .mobile-feature-item span {
        font-size: 11px;
    }

    .mobile-feature-icon {
        width: 38px;
        height: 38px;
    }

    .mobile-feature-icon img {
        width: 20px;
        height: 20px;
    }

    .btn {
        font-size: 14px;
        padding: 8px 16px;
    }

    .btn-primary,
    .btn-outline {
        font-size: 14px;
    }
}