@font-face {
    font-family: "Noto Serif SC";
    src: url("https://cdn1.guoxinshujian.com/fonts/NotoSerifSC-Regular.ttf") format("truetype");
    font-weight: normal;
    font-style: normal;
}

@font-face {
    font-family: "Noto Serif SC";
    src: url("https://cdn1.guoxinshujian.com/fonts/NotoSerifSC-Bold.ttf") format("truetype");
    font-weight: bold;
    font-style: normal;
}

@font-face {
    font-family: "Noto Sans SC";
    src: url("https://cdn1.guoxinshujian.com/fonts/NotoSansSC-Regular.ttf") format("truetype");
    font-weight: normal;
    font-style: normal;
}

@font-face {
    font-family: "Noto Sans SC";
    src: url("https://cdn1.guoxinshujian.com/fonts/NotoSansSC-Medium.ttf") format("truetype");
    font-weight: 500;
    font-style: normal;
}

@font-face {
    font-family: "Noto Sans SC";
    src: url("https://cdn1.guoxinshujian.com/fonts/NotoSansSC-SemiBold.ttf") format("truetype");
    font-weight: 600;
    font-style: normal;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: "Noto Sans SC", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
}

.nav {
    width: 100%;
    height: 80px;
    background-image: url('https://cdn1.guoxinshujian.com/image/home/nav-back.png');
    background-size: cover;
    background-position: center;
    display: flex;
    align-items: center;
    padding: 0 120px;
    justify-content: space-between;
    position: relative;
    overflow: hidden;
}

.nav::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, rgba(255, 255, 255, 0.1) 0%, rgba(255, 255, 255, 0) 100%);
    opacity: 0.5;
    pointer-events: none;
}

.nav-left {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-right: 80px;
}

.logo {
    width: 45px;
    height: 45px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.logo img {
    width: 45px;
    height: 45px;
    object-fit: contain;
}

.brand-name {
    font-family: "Noto Sans SC Medium", sans-serif;
    color: #FFFFFF;
    font-size: 24px;
    font-weight: 500;
}

.nav-center {
    display: flex;
    gap: 24px;
    margin-left: 0;
    margin-right: auto;
}

.nav-link {
    font-family: "Noto Sans SC Medium", sans-serif;
    color: rgba(255, 255, 255, 0.8);
    text-decoration: none;
    font-size: 14px;
    position: relative;
    padding: 8px 0;
    transition: color 0.3s ease;
    text-align: left;
}

.nav-link:hover {
    color: #FFFFFF;
}

.nav-link.active {
    color: #FFFFFF;
    font-weight: 600;
}

.nav-link.active::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 0;
    width: 100%;
    height: 14px;
    background: url('https://cdn1.guoxinshujian.com/image/home/nav-select1.png') no-repeat center/cover;
}

.nav-right {
    display: flex;
    align-items: center;
    gap: 8px;
    color: #FFFFFF;
}

.nav-right a {
    display: flex;
    align-items: center;
    gap: 8px;
    text-decoration: none;
    color: #FFFFFF;
}

.nav-right i {
    font-size: 16px;
}

.nan-contact {
    font-family: "Noto Sans SC Medium", sans-serif;
    font-size: 14px;
}

.phone-icon {
    width: 16px;
    height: 16px;
    fill: #FFFFFF;
}

.banner {
    width: 100%;
    height: 640px;
    background-image: url('https://cdn1.guoxinshujian.com/image/home/banner.png');
    background-size: cover;
    background-position: center;
    position: relative;
}

.banner-content {
    position: absolute;
    left: 207px;
    top: 258px;
    display: flex;
    flex-direction: column;
    gap: 34px;
}

.banner-title {
    font-size: 54px;
    line-height: 1.25;
    color: #74481E;
    width: 428px;
}

.banner-subtitle {
    font-family: "Noto Sans SC Regular", sans-serif;
    font-size: 20px;
    line-height: 1.8;
    color: #65625E;
    font-weight: 400;
    width: 500px;
}

.banner-link {
    display: flex;
    align-items: center;
    gap: 4px;
    text-decoration: none;
    color: #74481E;
    font-family: "Noto Sans SC", sans-serif;
    font-size: 16px;
    font-weight: 500;
}

.banner-link-icon {
    width: 16px;
    height: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.banner-link-icon svg {
    width: 8px;
    height: 8px;
    fill: #74481E;
}

.certificate-section {
    width: 80%;
    margin: 33px auto 0;
    position: relative;
    display: flex;
    align-items: flex-start;
    gap: 40px;
}

.certificate-container {
    flex: 1;
    min-width: 0;
    height: 96px;
    background: #FFFFFF;
    display: flex;
    align-items: center;
    position: relative;
    box-shadow: 0 10px 80px rgba(108, 66, 27, 0.1);
}

.certificate-title {
    width: 344px;
    height: 96px;
    background: url('https://cdn1.guoxinshujian.com/image/home/query.png') no-repeat center/cover;
    display: flex;
    flex-direction: column;
    justify-content: center;
    padding-left: 79px;
    position: relative;
}


.certificate-title h2 {
    color: #FFFFFF;
    font-size: 24px;
    font-family: "Noto Sans SC Semibold", sans-serif;
    margin-bottom: 4px;
    font-weight: 500;
}

.certificate-title p {
    color: rgba(255, 255, 255, 0.5);
    font-size: 18px;
    font-family: "Noto Sans SC Semibold", sans-serif;
}

.certificate-form {
    display: flex;
    align-items: center;
    gap: 32px;
    padding: 0 32px;
    flex: 1;
}

.input-group {
    display: flex;
    align-items: center;
    gap: 12px;
    position: relative;
    width: 280px;
}

.input-group label {
    font-family: "Noto Sans SC", sans-serif;
    color: #43403C;
    font-size: 14px;
    white-space: nowrap;
}

.input-group input {
    width: 212px;
    height: 22px;
    border: none;
    border-bottom: 1px solid #9D8C7E;
    font-family: "Noto Sans SC Medium", sans-serif;
    font-size: 14px;
    padding: 4px 0;
    outline: none;
    box-sizing: border-box;
}

.input-group input::placeholder {
    color: #E9E6E3;
    font-family: "Noto Sans SC", sans-serif;
}

.search-btn {
    width: 93px;
    height: 40px;
    background: linear-gradient(to right, #AD7036, #6C421B);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    color: #FFFFFF;
    font-size: 14px;
    font-family: "Noto Sans SC", sans-serif;
    border: none;
    cursor: pointer;

}

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

.search-btn svg {
    width: 16px;
    height: 16px;
}

@media (max-width: 1440px) {
    .certificate-section {
        width: 90%;
    }
}

@media (max-width: 1200px) {
    .certificate-section {
        width: 95%;
    }
}

.intro-section {
    width: 100%;
    height: 368px;
    margin-top: 39px;
    position: relative;
}

.intro-section::before {
    content: '';
    position: absolute;
    left: 0;
    top: 24px;
    width: 100%;
    height: 344px;
    background: #FFFFFF;
    box-shadow: 0 10px 80px rgba(108, 66, 27, 0.1);
}

.intro-container {
    width: 100%;
    height: 100%;
    padding: 0 120px;
    margin: 0 auto;
    display: flex;
    align-items: center;
    position: relative;
}

.intro-image {
    width: 584px;
    height: 368px;
    object-fit: cover;
}

.intro-content {
    margin-left: 64px;
    width: 524px;
    display: flex;
    flex-direction: column;
}

.intro-title {
    font-size: 40px;
    color: #743F1E;
    margin-bottom: 12px;
    position: relative;
    padding-bottom: 12px;
    letter-spacing: 2px;
}

.intro-title::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 48px;
    height: 4px;
    background: linear-gradient(to right, #AD7036, #6C421B);
}

.intro-subtitle {
    font-size: 14px;
    color: #65625E;
    line-height: 1.5;
    margin-top: 14px;
}

.intro-features {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-top: 24px;
}

.feature-item {
    width: 125px;
    height: 40px;
    padding: 0 12px;
    background: linear-gradient(to right, rgba(173, 112, 54, 0.05), rgba(108, 66, 27, 0.1));
    display: flex;
    align-items: center;
    gap: 8px;
    text-decoration: none;
}

.feature-item:hover {
    background: linear-gradient(0deg, #6C421B 0%, #AD7036 100%);
}

.feature-item:hover .feature-text{
    color: #fff;
}

.feature-icon {
    width: 20px;
    height: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.feature-text {
    color: #A0481C;
    font-size: 14px;
    font-family: "Noto Sans SC", sans-serif;
}

@media (max-width: 1440px) {
    .intro-container {
        padding: 0 80px;
    }
}

@media (max-width: 1200px) {
    .intro-container {
        padding: 0 40px;
    }
}

.industry-section {
    width: 100%;
    padding: 0 120px;
    margin-top: 56px;
}

.industry-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: 22px;
}

.industry-title {
    font-size: 40px;
    color: #743F1E;
    font-family: "Noto Sans SC", sans-serif;
    position: relative;
    padding-bottom: 12px;
    letter-spacing: 2px;
}

.industry-title::after {
    content: '';
    position: absolute;
    left: 0;
    bottom: 0;
    width: 132px;
    height: 10px;
    background: url('https://cdn1.guoxinshujian.com/image/home/title-underline.png') no-repeat center/cover;
}

.industry-more {
    display: flex;
    align-items: center;
    gap: 15px;
    text-decoration: none;
    margin-top: 26px;
}

.industry-more span {
    font-size: 14px;
    color: #743F1E;
    font-family: "Noto Sans SC", sans-serif;
}

.industry-more .arrow-icon {
    width: 16px;
    height: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.industry-grid {
    display: flex;
    flex-wrap: nowrap;
    margin-top: 40px;
    position: relative;
    width: 100%;
}

.industry-card {
    position: relative;
    height: 260px;
    width: 25%;
    overflow: hidden;
    display: flex;
    flex-direction: column;
    justify-content: flex-end;
    text-decoration: none;
    transition: all 0.3s ease;
    background: #323438;
    z-index: 1;
}

.industry-card:hover {
    transform: scale(1.1);
    box-shadow: 0 15px 80px rgba(108, 66, 27, 0.15);
    z-index: 10;
}

.industry-card:nth-child(1),
.industry-card:nth-child(3) {
    background: rgb(50, 52, 57);
}

.industry-card-image {
    position: absolute;
    left: 0;
    top: 0;
    width: 100%;
    height: 160px;
    object-fit: cover;
    transition: transform 0.3s ease;
}

.industry-card:hover .industry-card-image {
    height: 136px;
}

.industry-card-content {
    position: relative;
    z-index: 2;
    padding: 12px 28px;
    color: #FFFFFF;
    background: rgb(50, 52, 57);
    height: 100px;
    margin-top: auto;
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.industry-card:hover .industry-card-content {
    height: 124px;
}

.industry-card-title {
    font-size: 14px;
    font-family: "Noto Sans SC", sans-serif;
    line-height: 1.2;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
    text-overflow: ellipsis;
    height: 40px;
    margin: 0;
    font-weight: 400;
}

.industry-card-desc {
    font-size: 12px;
    font-family: "Noto Sans SC Regular", sans-serif;
    color: rgba(255, 255, 255, 0.7);
    display: flex;
    flex-direction: column;
    align-items: flex-start;
}

.read-more {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    color: #FFFFFF;
    width: 100%;
    margin-top: 4px;
    font-size: 14px;
    opacity: 0;
    transform: translateY(10px);
    transition: all 0.3s ease;
}

.read-more i {
    font-size: 16px;
}

.industry-card:hover .read-more {
    opacity: 1;
    transform: translateY(0);
}

.industry-card::after {
    content: '';
    position: absolute;
    left: 0;
    bottom: 10px;
    width: 100%;
    height: 12px;
    background: url('https://cdn1.guoxinshujian.com/image/home/card-shine.png') no-repeat center/cover;
    z-index: 3;
}

.industry-card:nth-child(2) .industry-card-content,
.industry-card:nth-child(4) .industry-card-content {
    background: linear-gradient(to right, #AD7036, #6C421B);
}

@media (max-width: 1440px) {
    .industry-section {
        padding: 0 80px;
    }
}

@media (max-width: 1200px) {
    .industry-section {
        padding: 0 40px;
    }
    .industry-grid {
        flex-wrap: wrap;
    }
    .industry-card {
        width: 50%;
    }
}

.jewelry-section {
    width: 100%;
    padding: 0 120px;
    margin-top: 56px;
}

.jewelry-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: 22px;
}

.jewelry-title {
    font-size: 40px;
    color: #743F1E;
    font-family: "Noto Sans SC", sans-serif;
    position: relative;
    padding-bottom: 12px;
   letter-spacing: 2px;
}

.jewelry-title::after {
    content: '';
    position: absolute;
    left: 0;
    bottom: 0;
    width: 132px;
    height: 10px;
    background: url('https://cdn1.guoxinshujian.com/image/home/title-underline.png') no-repeat center/cover;
}

.jewelry-more {
    display: flex;
    align-items: center;
    gap: 15px;
    text-decoration: none;
    margin-top: 26px;
}

.jewelry-more span {
    font-size: 14px;
    color: #743F1E;
    font-family: "Noto Sans SC", sans-serif;
}

.jewelry-more .arrow-icon {
    width: 16px;
    height: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
}

@media (max-width: 1440px) {
    .jewelry-section {
        padding: 0 80px;
    }
}

@media (max-width: 1200px) {
    .jewelry-section {
        padding: 0 40px;
    }
}

.jewelry-grid {
    margin-top: 40px;
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.jewelry-row {
    display: flex;
    gap: 10px;
    height: 268px;
}

.jewelry-card {
    position: relative;
    overflow: hidden;
    text-decoration: none;
    height: 100%;
    flex: 1;
}

.jewelry-card.large {
    flex: 2;
}

.jewelry-image {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.3s ease;
}

.jewelry-content,.jewelry-contents{
    position: absolute;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    padding: 40px 54px;
    background: url('https://cdn1.guoxinshujian.com/image/home/jewelry-mask1.png') no-repeat center/cover;
    display: flex;
    flex-direction: column;
    justify-content: flex-start;
    color: #FFFFFF;
}

.jewelry-contents{
    background: url('https://cdn1.guoxinshujian.com/image/home/jewelry-mask2.png') no-repeat center/cover;
}

.jewelry-card-title {
    font-size: 22px;
    font-weight: bold;
    margin-bottom: 12px;
    color: #FFF;
    letter-spacing: 1px;
}

.jewelry-card-desc {
    font-size: 14px;
    font-family: "Noto Sans SC Regular", sans-serif;
    line-height: 1.5;
    opacity: 1;
    color: #fff;
}

.jewelry-row:first-child .jewelry-card:first-child .jewelry-card-title,
.jewelry-row:last-child .jewelry-card:last-child .jewelry-card-title {
    color: #000;
}

.jewelry-row:first-child .jewelry-card:first-child .jewelry-card-desc,
.jewelry-row:last-child .jewelry-card:last-child .jewelry-card-desc {
    color: #6A635D;
}

.jewelry-card:hover .jewelry-image {
    transform: scale(1.1);
}

@media (max-width: 1200px) {
    .jewelry-row {
        flex-direction: column;
        height: auto;
    }

    .jewelry-card {
        height: 268px;
    }

    .jewelry-card.large {
        flex: 1;
    }
}

.partner-section {
    width: 100%;
    padding: 0 120px;
    margin-top: 56px;
}

.partner-title {
    font-size: 40px;
    color: #743F1E;
    font-family: "Noto Sans SC", sans-serif;
    position: relative;
    padding-bottom: 12px;
    text-align: center;
    letter-spacing: 2px;
}

.partner-title::after {
    content: '';
    position: absolute;
    left: 50%;
    transform: translateX(-50%);
    bottom: 0;
    width: 132px;
    height: 10px;
    background: url('https://cdn1.guoxinshujian.com/image/home/title-underline.png') no-repeat center/cover;
}

.partner-grid {
    margin-top: 40px;
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.partner-row {
    display: flex;
    justify-content: space-between;
    gap: 20px;
}

.partner-card {
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 10px 30px rgba(108, 66, 27, 0.1);
    transition: transform 0.3s ease;
    overflow: hidden;
}

.partner-card:hover {
    transform: translateY(-5px);
}

.partner-card img {
    display: block;
    width: 100%;
    height: auto;
    max-height: 100%;
}

@media (max-width: 1440px) {
    .partner-section {
        padding: 0 80px;
    }
}

@media (max-width: 1200px) {
    .partner-section {
        padding: 0 40px;
    }
    .partner-row {
        flex-wrap: wrap;
        justify-content: center;
    }
    .partner-card {
        width: calc(33.33% - 20px);
    }
    .partner-card img {
        width: 100%;
        height: 100%;
    }
}

.global-loading {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: #FFFFFF;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    z-index: 9999;
}

.loading-spinner {
    width: 40px;
    height: 40px;
    border: 3px solid #f3f3f3;
    border-top: 3px solid #6C421B;
    border-radius: 50%;
    animation: spin 1s linear infinite;
    margin-bottom: 16px;
}

.loading-text {
    color: #6C421B;
    font-size: 16px;
    font-family: "Noto Sans SC Medium", sans-serif;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

/* 响应式布局 */
@media (max-width: 1440px) {
    .certificate-section,
    .industry-section,
    .jewelry-section,
    .partner-section {
        padding: 0 48px;
    }
}

@media (max-width: 1200px) {
    .certificate-section,
    .industry-section,
    .jewelry-section,
    .partner-section {
        padding: 0 40px;
    }

    .banner-content {
        left: 40px;
    }

    .banner-title,
    .banner-subtitle {
        width: auto;
        max-width: 90%;
    }
}

.clear-icon {
    width: 16px;
    height: 16px;
    cursor: pointer;
    opacity: 0.6;
    transition: opacity 0.3s ease;
    position: absolute;
    top: 12px;
    right: 0;
    transform: translateY(-50%);
}

.clear-icons {
    width: 16px;
    height: 16px;
    cursor: pointer;
    opacity: 0.6;
    transition: opacity 0.3s ease;
    position: absolute;
    top: 12px;
    right: 11px;
    transform: translateY(-50%);
}

.clear-icon:hover {
    opacity: 1;
}

.input-warning {
    width: 100px;
    color: #FC0202;
    font-size: 12px;
    font-family: "Noto Sans SC", sans-serif;
    display: none;
    min-height: 20px;
}

.footer{
    margin-top: 56px;
}