/* ============================================
   专利页面样式 - 精致高端医美风格
   Patent Page Styles - Refined Luxury Aesthetic
   ============================================ */

/* 字体定义 */
@font-face {
    font-family: "SourceHanSansCN-Bold";
    font-style: normal;
    font-weight: normal;
    src: url(../fonts/nbrand/SourceHanSansCN-Bold.ttf) format("truetype"),
         url(../fonts/nbrand/SourceHanSansCN-Bold.woff) format("woff"),
         url(../fonts/nbrand/SourceHanSansCN-Bold.svg) format("svg")
}

@font-face {
    font-family: "SourceHanSansCN-Regular";
    font-style: normal;
    font-weight: normal;
    src: url(../fonts/nbrand/SourceHanSansCN-Regular.ttf) format("truetype"),
         url(../fonts/nbrand/SourceHanSansCN-Regular.woff) format("woff"),
         url(../fonts/nbrand/SourceHanSansCN-Regular.svg) format("svg")
}

@font-face {
    font-family: "SourceHanSansCN-Medium";
    font-style: normal;
    font-weight: normal;
    src: url(../fonts/nbrand/SourceHanSansCN-Medium.ttf) format("truetype"),
         url(../fonts/nbrand/SourceHanSansCN-Medium.woff) format("woff"),
         url(../fonts/nbrand/SourceHanSansCN-Medium.svg) format("svg")
}

@font-face {
    font-family: "Alibaba-PuHuiTi-Bold";
    font-style: normal;
    font-weight: normal;
    src: url(../fonts/nbrand/Alibaba-PuHuiTi-Bold.ttf) format("truetype"),
         url(../fonts/nbrand/Alibaba-PuHuiTi-Bold.woff) format("woff"),
         url(../fonts/nbrand/Alibaba-PuHuiTi-Bold.svg) format("svg")
}

/* 页面标题区域 */
.page-title {
    width: 100%;
    height: 300px;
    background: linear-gradient(135deg, #f8f6f3 0%, #e8e4df 50%, #f0ebe4 100%);
    position: relative;
    overflow: hidden;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-top: 130px;
}

.page-title::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: radial-gradient(circle at 20% 50%, rgba(159, 121, 68, 0.08) 0%, transparent 50%),
                radial-gradient(circle at 80% 50%, rgba(211, 171, 98, 0.08) 0%, transparent 50%);
    z-index: 1;
}

.page-title ._1400 {
    position: relative;
    z-index: 2;
    text-align: center;
}

.page-title h1 {
    font-family: "Alibaba-PuHuiTi-Bold";
    font-size: 72px;
    line-height: 1.2;
    letter-spacing: 8px;
    color: #9f7944;
    margin: 0 0 15px 0;
    position: relative;
}

.page-title h1::after {
    content: '';
    display: block;
    width: 80px;
    height: 3px;
    background: linear-gradient(90deg, transparent, #d3ab62, transparent);
    margin: 20px auto 0;
}

.page-title p {
    font-family: "SourceHanSansCN-Regular";
    font-size: 20px;
    line-height: 1.6;
    letter-spacing: 4px;
    color: #666;
    margin: 0;
}

/* 专利列表容器 */
.patent-list {
    width: 100%;
    padding: 80px 0;
    background: #fff;
}

.patent-list._1400 {
    max-width: 1400px;
    margin: 0 auto;
    padding: 80px 20px;
}

/* 专利网格布局 */
.patent-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(420px, 1fr));
    gap: 40px;
    margin-bottom: 60px;
}

/* 专利卡片 */
.patent-item {
    position: relative;
    background: #fff;
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 4px 20px rgba(159, 121, 68, 0.08);
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    border: 1px solid rgba(159, 121, 68, 0.1);
}

.patent-item:hover {
    transform: translateY(-12px);
    box-shadow: 0 20px 50px rgba(159, 121, 68, 0.18);
    border-color: rgba(159, 121, 68, 0.3);
}

.patent-item::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, #9f7944, #d3ab62, #9f7944);
    transform: scaleX(0);
    transition: transform 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

.patent-item:hover::before {
    transform: scaleX(1);
}

.patent-link {
    display: block;
    text-decoration: none;
    color: inherit;
}

/* 专利图片区域 */
.patent-thumb {
    width: 100%;
    height: 320px;
    overflow: hidden;
    position: relative;
    background: #f5f3f0;
}

.patent-thumb img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.6s cubic-bezier(0.4, 0, 0.2, 1);
}

.patent-item:hover .patent-thumb img {
    transform: scale(1.08);
}

.patent-thumb::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(to bottom, transparent 0%, rgba(159, 121, 68, 0.15) 100%);
    opacity: 0;
    transition: opacity 0.4s ease;
}

.patent-item:hover .patent-thumb::after {
    opacity: 1;
}

/* 专利信息区域 */
.patent-info {
    padding: 32px 28px 28px;
    position: relative;
    background: #fff;
}

.patent-info h3 {
    font-family: "SourceHanSansCN-Medium";
    font-size: 24px;
    line-height: 1.4;
    color: #333;
    margin: 0 0 20px 0;
    font-weight: 500;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
    transition: color 0.3s ease;
}

.patent-item:hover .patent-info h3 {
    color: #9f7944;
}

/* 专利元数据 */
.patent-meta {
    display: flex;
    flex-wrap: wrap;
    gap: 16px;
    margin-bottom: 16px;
}

.patent-meta span {
    font-family: "SourceHanSansCN-Regular";
    font-size: 14px;
    line-height: 1.6;
    color: #666;
    padding: 6px 12px;
    background: #f8f6f3;
    border-radius: 4px;
    border: 1px solid rgba(159, 121, 68, 0.1);
}

.patent-date {
    font-family: "SourceHanSansCN-Regular";
    font-size: 14px;
    line-height: 1.6;
    color: #999;
    margin-top: 12px;
}

/* 分页样式 */
.pagination {
    width: 100%;
    text-align: center;
    padding: 40px 0;
}

.pagination .pagination,
.pagination .pagination li {
    display: inline-block;
    margin: 0 8px;
}

.pagination .pagination li a,
.pagination .pagination li span {
    display: inline-block;
    min-width: 44px;
    height: 44px;
    line-height: 42px;
    padding: 0 16px;
    font-family: "SourceHanSansCN-Regular";
    font-size: 15px;
    color: #666;
    background: #fff;
    border: 1px solid rgba(159, 121, 68, 0.2);
    border-radius: 4px;
    text-decoration: none;
    transition: all 0.3s ease;
}

.pagination .pagination li a:hover,
.pagination .pagination li span.current {
    background: linear-gradient(135deg, #9f7944, #d3ab62);
    color: #fff;
    border-color: #9f7944;
    box-shadow: 0 4px 12px rgba(159, 121, 68, 0.25);
}

/* 面包屑导航 */
.breadcrumb {
    width: 100%;
    padding: 20px 0;
    padding-top: 150px;
    background: #f8f6f3;
    border-bottom: 1px solid rgba(159, 121, 68, 0.1);
}

.breadcrumb ._1400 {
    max-width: 1400px;
    margin: 0 auto;
    /* padding: 30px 20px; */
}

.breadcrumb a,
.breadcrumb span {
    font-family: "SourceHanSansCN-Regular";
    font-size: 15px;
    line-height: 1.6;
    color: #666;
    text-decoration: none;
    transition: color 0.3s ease;
}

.breadcrumb a:hover {
    color: #9f7944;
}

.breadcrumb span {
    color: #999;
}

/* 专利详情页 */
.patent-detail {
    width: 100%;
    padding: 80px 0;
    background: #fff;
}

.patent-detail._1400 {
    max-width: 1400px;
    margin: 0 auto;
    padding: 80px 20px;
}

.patent-content {
    display: grid;
    grid-template-columns: 600px 1fr;
    gap: 60px;
    align-items: start;
}

/* 专利详情图片 */
.patent-image {
    position: relative;
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 8px 30px rgba(159, 121, 68, 0.12);
    background: #f5f3f0;
}

.patent-image img {
    width: 100%;
    height: auto;
    display: block;
    transition: transform 0.6s cubic-bezier(0.4, 0, 0.2, 1);
}

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

/* 专利详情信息 */
.patent-info-detail {
    padding: 20px 0;
}

.patent-info-detail h1 {
    font-family: "Alibaba-PuHuiTi-Bold";
    font-size: 42px;
    line-height: 1.3;
    color: #333;
    margin: 0 0 40px 0;
    position: relative;
}

.patent-info-detail h1::after {
    content: '';
    display: block;
    width: 60px;
    height: 3px;
    background: linear-gradient(90deg, #9f7944, #d3ab62);
    margin: 24px 0 0;
}

/* 专利元数据详情 */
.patent-meta-detail {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px 40px;
    margin-bottom: 0;
    padding: 36px;
    background: linear-gradient(135deg, #faf8f5 0%, #f5f3f0 100%);
    border-radius: 16px;
    border: 1px solid rgba(159, 121, 68, 0.12);
    box-shadow: 0 4px 20px rgba(159, 121, 68, 0.06);
}

.meta-item {
    display: flex;
    flex-direction: column;
    gap: 8px;
    padding-bottom: 8px;
    border-bottom: 1px solid rgba(159, 121, 68, 0.08);
}

.meta-item:last-child,
.meta-item:nth-child(3n) {
    border-bottom: none;
}

.meta-item .label {
    font-family: "SourceHanSansCN-Medium";
    font-size: 14px;
    line-height: 1.5;
    color: #9f7944;
    letter-spacing: 0.5px;
    font-weight: 500;
}

.meta-item .value {
    font-family: "SourceHanSansCN-Regular";
    font-size: 16px;
    line-height: 1.6;
    color: #333;
    font-weight: 400;
}

/* 专利描述 */
.patent-description {
    margin-top: 50px;
}

.patent-description h2 {
    font-family: "SourceHanSansCN-Medium";
    font-size: 28px;
    line-height: 1.4;
    color: #333;
    margin: 0 0 30px 0;
    padding-bottom: 15px;
    border-bottom: 2px solid rgba(159, 121, 68, 0.2);
}

.description-content {
    font-family: "SourceHanSansCN-Regular";
    font-size: 16px;
    line-height: 1.8;
    color: #555;
}

.description-content p {
    margin: 0 0 16px 0;
}

.description-content img {
    max-width: 100%;
    height: auto;
    margin: 20px 0;
    border-radius: 8px;
}

/* 响应式设计 */
@media (max-width: 1600px) {
    .patent-grid {
        grid-template-columns: repeat(auto-fill, minmax(380px, 1fr));
        gap: 30px;
    }
}

@media (max-width: 1400px) {
    .page-title h1 {
        font-size: 60px;
        letter-spacing: 6px;
    }

    .patent-list._1400,
    .patent-detail._1400,
    .breadcrumb._1400 {
        max-width: 1200px;
    }
}

@media (max-width: 1200px) {
    .patent-grid {
        grid-template-columns: repeat(auto-fill, minmax(350px, 1fr));
        gap: 25px;
    }

    .patent-content {
        grid-template-columns: 1fr;
        gap: 40px;
    }

    .patent-image {
        max-width: 600px;
        margin: 0 auto;
    }

    .patent-meta-detail {
        grid-template-columns: repeat(2, 1fr);
        gap: 20px 30px;
        padding: 28px;
    }

    .meta-item:nth-child(3n) {
        border-bottom: 1px solid rgba(159, 121, 68, 0.08);
    }

    .meta-item:nth-child(even) {
        border-bottom: none;
    }
}

@media (max-width: 768px) {
    .page-title {
        height: 240px;
        margin-top: 100px;
    }

    .page-title h1 {
        font-size: 42px;
        letter-spacing: 4px;
    }

    .page-title p {
        font-size: 16px;
        letter-spacing: 2px;
    }

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

    .patent-thumb {
        height: 280px;
    }

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

    .patent-info-detail h1 {
        font-size: 32px;
        margin-bottom: 30px;
    }

    .patent-meta-detail {
        grid-template-columns: 1fr;
        gap: 16px;
        padding: 24px;
    }

    .meta-item {
        border-bottom: 1px solid rgba(159, 121, 68, 0.08);
        padding-bottom: 12px;
    }

    .meta-item:last-child {
        border-bottom: none;
        padding-bottom: 0;
    }

    .meta-item .label {
        font-size: 13px;
    }

    .meta-item .value {
        font-size: 15px;
    }
}

/* 动画效果 */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.patent-item {
    animation: fadeInUp 0.6s ease-out forwards;
}

.patent-item:nth-child(1) { animation-delay: 0.1s; }
.patent-item:nth-child(2) { animation-delay: 0.2s; }
.patent-item:nth-child(3) { animation-delay: 0.3s; }
.patent-item:nth-child(4) { animation-delay: 0.4s; }
.patent-item:nth-child(5) { animation-delay: 0.5s; }
.patent-item:nth-child(6) { animation-delay: 0.6s; }

/* 滚动动画 */
.wow {
    visibility: hidden;
}

.wow.animated {
    visibility: visible;
}