@charset "utf-8";
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800&display=swap');

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

body {
    font-family: 'Inter', 'Helvetica Neue', Arial, 'Microsoft YaHei', sans-serif;
    color: #333;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

.container {
    max-width: 1600px;
    margin: 0 auto;
}

.section-title-wrap {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 40px;
}

.section-heading {
    color: rgba(30, 41, 57, 1);
    font-family: "Inter";
    font-size: 34px;
    font-weight: 500;
    line-height: 41px;
    letter-spacing: 0px;
    text-align: left;
}

.title-underline {
    width: 28px;
    height: 3px;
    background: #1a2a3a;
    margin-top: 14px;
    margin-bottom: 20px;
}

.btn-primary {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    background: #1a3a5c;
    padding: 10px 22px;
    border-radius: 4px;
    text-decoration: none;
    transition: background 0.3s;
    color: rgba(255, 255, 255, 1);
    font-family: "Inter";
    font-size: 14px;
    font-weight: 700;
    line-height: 17px;
    letter-spacing: 0px;
    text-align: left;
}

.btn-primary:hover {
    background: #2a5a8c;
}

.link-arrow {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    text-decoration: none;
    transition: color 0.3s;
    color: rgba(54, 65, 83, 1);
    font-family: "Inter";
    font-style: Bold;
    font-size: 14px;
    font-weight: 700;
    line-height: 17px;
    letter-spacing: 0px;
    text-align: left;
}

.link-arrow:hover {
    color: #3a7bd5;
}

.link-arrow .arr {
    transition: transform 0.3s;
}

.link-arrow:hover .arr {
    transform: translateX(4px);
}

/* ===== Section 1: Who is SWCHEM ===== */
.section-about {
    background: #fff;
    padding: 100px 0 90px;
}

.section-about .container {
    display: flex;
    align-items: flex-start;
    gap: 230px;
}

.about-left {
    flex: 0 0 auto;
    min-width: 320px;
}

.about-left .subtitle {
    font-size: 60px;
    font-weight: 300;
    color: rgba(30, 41, 57, 1);
    line-height: 1.2;
    letter-spacing: 1px;
}

.about-left .main-title {
    font-size: 60px;
    font-weight: 700;
    color: #1a2a3a;
    line-height: 1.1;
    letter-spacing: 2px;
    margin-top: 2px;
}

.about-left .company-tag {
    font-size: 12px;
    font-weight: 400;
    color: #999;
    letter-spacing: 6px;
    text-transform: uppercase;
    margin-top: 16px;
}

.about-right {
    flex: 1;
    padding-top: 8px;
}

.about-right p {
    font-size: 18px;
    line-height: 1.8;
    color: rgba(74, 85, 101, 1);
    margin-bottom: 16px;
}

.about-right .discover-link {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    font-size: 14px;
    font-weight: 700;
    color: rgba(54, 65, 83, 1);
    text-decoration: none;
    margin-top: 12px;
    transition: color 0.3s;
}

.about-right .discover-link:hover {
    color: #3a7bd5;
}

.about-right .discover-link .arrow {
    font-size: 16px;
    transition: transform 0.3s;
}

.about-right .discover-link:hover .arrow {
    transform: translateX(4px);
}

/* ===== Section 2: What we do ===== */
.section-services {
    background: rgba(249, 250, 251, 1);
    padding: 90px 0 100px;
    position: relative;
    overflow: hidden;
}

/* Background decorative elements */
.section-services::before {
    content: '';
    position: absolute;
    top: -120px;
    right: -120px;
    width: 400px;
    height: 400px;
    background: radial-gradient(circle, rgba(58, 123, 213, 0.04) 0%, transparent 70%);
    border-radius: 50%;
    pointer-events: none;
}

.section-services::after {
    content: '';
    position: absolute;
    bottom: -80px;
    left: -80px;
    width: 300px;
    height: 300px;
    background: radial-gradient(circle, rgba(26, 42, 58, 0.03) 0%, transparent 70%);
    border-radius: 50%;
    pointer-events: none;
}

.section-services .section-header {
    margin-bottom: 50px;
    position: relative;
    z-index: 1;
}

.section-services .section-title {
    font-size: 34px;
    font-weight: 500;
    color: rgba(30, 41, 57, 1);
    margin-bottom: 5px;
    position: relative;
}

/* Title letter reveal animation */
.section-services .section-title .char {
    display: inline-block;
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 0.4s ease, transform 0.4s ease;
}

.section-services .section-title.animated .char {
    opacity: 1;
    transform: translateY(0);
}

.section-services .title-bar {
    width: 0;
    height: 3px;
    background: linear-gradient(90deg, rgba(30, 41, 57, 1), rgba(30, 41, 57, 1));
    margin-bottom: 25px;
    transition: width 0.8s cubic-bezier(0.25, 0.46, 0.45, 0.94) 0.4s;
}

.section-services .title-bar.animated {
    width: 28px;
}

.section-services .section-desc {
    font-size: 18px;
    line-height: 1.8;
    color: rgba(74, 85, 101, 1);
    max-width: 100%;
    opacity: 0;
    transform: translateY(15px);
    transition: opacity 0.6s ease 0.6s, transform 0.6s ease 0.6s;
}

.section-services .section-desc.animated {
    opacity: 1;
    transform: translateY(0);
}

.cards-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
    position: relative;
    z-index: 1;
}

.card {
    background: #fff;
    border-radius: 6px;
    overflow: hidden;
    box-shadow: 0 2px 12px rgba(0, 0, 0, 0.06);
    transition: box-shadow 0.4s cubic-bezier(0.25, 0.46, 0.45, 0.94),
        transform 0.4s cubic-bezier(0.25, 0.46, 0.45, 0.94);
    position: relative;
    box-sizing: border-box;
    border-bottom: 1px solid rgba(238, 239, 240, 1);
    border-left: 1px solid rgba(238, 239, 240, 1);
    border-right: 1px solid rgba(238, 239, 240, 1);
    box-shadow: 0px 2px 2px 0px rgba(0, 0, 0, 0.1);
    background: rgba(255, 255, 255, 1);
}

/* Card top accent line */
.card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(90deg, #1a3a5c, #3a7bd5);
    transform: scaleX(0);
    transform-origin: left;
    transition: transform 0.4s ease;
    z-index: 2;
}

.card:hover::before {
    transform: scaleX(1);
}

.card:hover {
    box-shadow: 0 12px 40px rgba(0, 0, 0, 0.12);
    transform: translateY(-6px);
}

/* Card number badge */
.card-number {
    position: absolute;
    top: 16px;
    right: 16px;
    width: 32px;
    height: 32px;
    background: rgba(26, 58, 92, 0.85);
    color: #fff;
    font-size: 13px;
    font-weight: 700;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 3;
    opacity: 0;
    transform: scale(0.5);
    transition: opacity 0.3s ease, transform 0.3s ease;
    backdrop-filter: blur(4px);
}

.card:hover .card-number {
    opacity: 1;
    transform: scale(1);
}

.card-img-wrap {
    overflow: hidden;
    position: relative;
}

/* Image overlay on hover */
.card-img-wrap::after {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(180deg, transparent 40%, rgba(26, 42, 58, 0.3) 100%);
    opacity: 0;
    transition: opacity 0.4s ease;
    z-index: 1;
}

.card:hover .card-img-wrap::after {
    opacity: 1;
}

.card-img {
    width: 100%;
    height: 233px;
    object-fit: cover;
    display: block;
    transition: transform 0.6s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

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

.card-body {
    padding: 35px 33px 33px;
    position: relative;
}

.card-title {
    font-size: 20px;
    font-weight: 700;
    color: rgba(16, 24, 40, 1);
    margin-bottom: 14px;
    line-height: 1.3;
    transition: color 0.3s ease;
}

.card:hover .card-title {
    color: #1a3a5c;
}

.card-text {
    font-size: 14px;
    line-height: 1.7;
    color: rgba(74, 85, 101, 1);
    margin-bottom: 24px;
    transition: color 0.3s ease;
    display: -webkit-box;           /* 将对象作为弹性伸缩盒子模型显示 */
    -webkit-box-orient: vertical;   /* 设置伸缩盒子的子元素排列方式为垂直 */
    -webkit-line-clamp: 3;          /* 限制在一个块元素显示的文本的行数 */
    overflow: hidden;               /* 隐藏溢出的内容 */
}

.card:hover .card-text {
    color: #5a6a7a;
}

.card-btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    font-size: 14px;
    font-weight: 600;
    color: rgba(54, 65, 83, 1);
    text-decoration: none;
    padding: 15px 0;
    border-top: 1px solid #eee;
    width: 100%;
    justify-content: center;
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
    box-sizing: border-box;
    border: 1px solid rgba(236, 238, 241, 1);
    border-radius: 8px;
    background: rgba(255, 255, 255, 1);
}

/* Button background fill on hover */
.card-btn::before {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 0;
    background: #1a3a5c;
    transition: height 0.3s ease;
    z-index: 0;
}

.card-btn:hover::before {
    height: 100%;
}

.card-btn:hover {
    color: #fff;
    border-top-color: #1a3a5c;
}

.card-btn span,
.card-btn .arrow {
    position: relative;
    z-index: 1;
}

.card-btn .arrow {
    font-size: 14px;
    transition: transform 0.3s ease;
}

.card-btn:hover .arrow {
    transform: translateX(6px);
}

/* ===== Section 3: Latest News ===== */
.section-news {
    background: #fff;
    padding: 90px 0 100px;
}

.news-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 83px;
}

.news-card {
    background: #fff;
    border-top: 1px solid rgba(211, 214, 211, 1);
}

.news-tag {
    display: inline-block;
    text-transform: uppercase;
    margin-bottom: 27px;
    color: rgba(0, 142, 218, 1);
    font-size: 12px;
    font-weight: 500;
    line-height: 15px;
    letter-spacing: 0px;
    text-align: left;
    padding-top: 30px;
}

.news-card-title {
    margin-bottom: 19px;
    color: rgba(16, 24, 40, 1);
    font-family: "Space Grotesk";
    font-size: 20px;
    font-weight: 700;
    line-height: 24px;
    letter-spacing: 0px;
    text-align: left;
}
.news-card-title a{
    margin-bottom: 19px;
    color: rgba(16, 24, 40, 1);
    font-family: "Space Grotesk";
    font-size: 20px;
    font-weight: 700;
    line-height: 24px;
    letter-spacing: 0px;
    text-align: left;
}
.news-card-desc {
    margin-bottom: 48px;
    color: rgba(74, 85, 101, 1);
    font-size: 14px;
    font-weight: 400;
    line-height: 24px;
    letter-spacing: 0px;
    text-align: left;
}

.news-card-img {
    width: 100%;
    height: 270px;
    object-fit: contain;
    border-radius: 4px;
    display: block;
    margin-bottom: 16px;
}

/* ===== Section 4: Featured Projects ===== */
.section-projects {
    background: #f5f6f8;
    padding: 80px 0 115px;
}

.projects-header {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    margin-bottom: 50px;
}

.projects-header-left .section-heading {
    margin-bottom: 0;
    color: rgba(30, 41, 57, 1);
    font-size: 34px;
    font-weight: 500;
    line-height: 41px;
    letter-spacing: 0px;
    text-align: left;
}

.projects-header-left .title-underline {
    width: 24px;
    height: 3px;
    background: #1a2a3a;
    margin-top: 14px;
}

.projects-nav {
    display: flex;
    gap: 13px;
    margin-top: 4px;
    margin-right: 9%;
}

.projects-nav button {
    width: 44px;
    height: 44px;
    border-radius: 50%;
    border: none;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 24px;
    transition: all 0.3s;
    font-weight: 300;
    text-align: center;
}

.projects-nav .proj-prev {
    background: #d0d5da;
    color: #fff;
}

.projects-nav .proj-prev:hover {
    background: #b8bec4;
}

.projects-nav .proj-next {
    background: #1a3a5c;
    color: #fff;
}

.projects-nav .proj-next:hover {
    background: #2a5a8c;
}

.projects-scroll-wrap {
    position: relative;
    overflow: hidden;
}

.projects-track {
    display: flex;
    gap: 50px;
    overflow-x: auto;
    scroll-behavior: smooth;
    scrollbar-width: none;
    -ms-overflow-style: none;
    padding-bottom: 37px;
}

.projects-track::-webkit-scrollbar {
    display: none;
}

.project-card {
    flex: 0 0 354px;
    background: transparent;
}

.project-card-img {
    width: 100%;
    height: 247px;
    object-fit: cover;
    display: block;
    border-radius: 2px;
}

.project-card-body {
    padding: 18px 0 0;
}

.project-card-title {
    margin-bottom: 22px;
    color: rgba(16, 24, 40, 1);
    font-family: "Space Grotesk";
    font-style: Bold;
    font-size: 20px;
    font-weight: 700;
    line-height: 24px;
    letter-spacing: 0px;
    text-align: left;
    display: -webkit-box;
    -webkit-box-orient: vertical;
    -webkit-line-clamp: 1;
    overflow: hidden;
}

.project-card-desc {
    margin-bottom: 50px;
    min-height: auto;
    color: rgba(74, 85, 101, 1);
    font-size: 14px;
    font-weight: 400;
    line-height: 24px;
    letter-spacing: 0px;
    text-align: left;
    display: none;
    
    
    
    
    @charset "utf-8";
    @import url('https: //fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800&display=swap');

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}
    body {
    font-family: 'Inter', 'Helvetica Neue', Arial, 'Microsoft YaHei', sans-serif;
    color: #333;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

.container {
    max-width: 1600px;
    margin: 0 auto;
}

.section-title-wrap {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 40px;
}

.section-heading {
    color: rgba(30, 41, 57, 1);
    font-family: "Inter";
    font-size: 34px;
    font-weight: 500;
    line-height: 41px;
    letter-spacing: 0px;
    text-align: left;
}

.title-underline {
    width: 28px;
    height: 3px;
    background: #1a2a3a;
    margin-top: 14px;
    margin-bottom: 20px;
}

.btn-primary {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    background: #1a3a5c;
    padding: 10px 22px;
    border-radius: 4px;
    text-decoration: none;
    transition: background 0.3s;
    color: rgba(255, 255, 255, 1);
    font-family: "Inter";
    font-size: 14px;
    font-weight: 700;
    line-height: 17px;
    letter-spacing: 0px;
    text-align: left;
}

.btn-primary:
    hover {
    background: #2a5a8c;
}

.link-arrow {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    text-decoration: none;
    transition: color 0.3s;
    color: rgba(54, 65, 83, 1);
    font-family: "Inter";
    font-style: Bold;
    font-size: 14px;
    font-weight: 700;
    line-height: 17px;
    letter-spacing: 0px;
    text-align: left;
}

.link-arrow:
    hover {
    color: #3a7bd5;
}

.link-arrow .arr {
    transition: transform 0.3s;
}

.link-arrow:
    hover .arr {
    transform: translateX(4px);
}

/* ===== Section 1: Who is SWCHEM ===== */
.section-about {
    background: #fff;
    padding: 100px 0 90px;
}

.section-about .container {
    display: flex;
    align-items: flex-start;
    gap: 230px;
}

.about-left {
    flex: 0 0 auto;
    min-width: 320px;
}

.about-left .subtitle {
    font-size: 60px;
    font-weight: 300;
    color: rgba(30, 41, 57, 1);
    line-height: 1.2;
    letter-spacing: 1px;
}

.about-left .main-title {
    font-size: 60px;
    font-weight: 700;
    color: #1a2a3a;
    line-height: 1.1;
    letter-spacing: 2px;
    margin-top: 2px;
}

.about-left .company-tag {
    font-size: 12px;
    font-weight: 400;
    color: #999;
    letter-spacing: 6px;
    text-transform: uppercase;
    margin-top: 16px;
}

.about-right {
    flex: 1;
    padding-top: 8px;
}

.about-right
    p {
    font-size: 18px;
    line-height: 1.8;
    color: rgba(74, 85, 101, 1);
    margin-bottom: 16px;
}

.about-right .discover-link {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    font-size: 14px;
    font-weight: 700;
    color: rgba(54, 65, 83, 1);
    text-decoration: none;
    margin-top: 12px;
    transition: color 0.3s;
}

.about-right .discover-link:
    hover {
    color: #3a7bd5;
}

.about-right .discover-link .arrow {
    font-size: 16px;
    transition: transform 0.3s;
}

.about-right .discover-link:
    hover .arrow {
    transform: translateX(4px);
}

/* ===== Section 2: What we do ===== */
.section-services {
    background: rgba(249, 250, 251, 1);
    padding: 90px 0 100px;
    position: relative;
    overflow: hidden;
}

/* Background decorative elements */
.section-services::
    before {
    content: '';
    position: absolute;
    top: -120px;
    right: -120px;
    width: 400px;
    height: 400px;
    background: radial-gradient(circle, rgba(58, 123, 213, 0.04) 0%, transparent 70%);
    border-radius: 50%;
    pointer-events: none;
}

.section-services::
    after {
    content: '';
    position: absolute;
    bottom: -80px;
    left: -80px;
    width: 300px;
    height: 300px;
    background: radial-gradient(circle, rgba(26, 42, 58, 0.03) 0%, transparent 70%);
    border-radius: 50%;
    pointer-events: none;
}

.section-services .section-header {
    margin-bottom: 50px;
    position: relative;
    z-index: 1;
}

.section-services .section-title {
    font-size: 34px;
    font-weight: 500;
    color: rgba(30, 41, 57, 1);
    margin-bottom: 5px;
    position: relative;
}

/* Title letter reveal animation */
.section-services .section-title .char {
    display: inline-block;
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 0.4s ease, transform 0.4s ease;
}

.section-services .section-title.animated .char {
    opacity: 1;
    transform: translateY(0);
}

.section-services .title-bar {
    width: 0;
    height: 3px;
    background: linear-gradient(90deg, rgba(30, 41, 57, 1), rgba(30, 41, 57, 1));
    margin-bottom: 25px;
    transition: width 0.8s cubic-bezier(0.25, 0.46, 0.45, 0.94) 0.4s;
}

.section-services .title-bar.animated {
    width: 28px;
}

.section-services .section-desc {
    font-size: 18px;
    line-height: 1.8;
    color: rgba(74, 85, 101, 1);
    max-width: 100%;
    opacity: 0;
    transform: translateY(15px);
    transition: opacity 0.6s ease 0.6s, transform 0.6s ease 0.6s;
}

.section-services .section-desc.animated {
    opacity: 1;
    transform: translateY(0);
}

.cards-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
    position: relative;
    z-index: 1;
}

.card {
    background: #fff;
    border-radius: 6px;
    overflow: hidden;
    box-shadow: 0 2px 12px rgba(0, 0, 0, 0.06);
    transition: box-shadow 0.4s cubic-bezier(0.25, 0.46, 0.45, 0.94),
        transform 0.4s cubic-bezier(0.25, 0.46, 0.45, 0.94);
    position: relative;
    box-sizing: border-box;
    border-bottom: 1px solid rgba(238, 239, 240, 1);
    border-left: 1px solid rgba(238, 239, 240, 1);
    border-right: 1px solid rgba(238, 239, 240, 1);
    box-shadow: 0px 2px 2px 0px rgba(0, 0, 0, 0.1);
    background: rgba(255, 255, 255, 1);
}

/* Card top accent line */
.card::
    before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(90deg, #1a3a5c, #3a7bd5);
    transform: scaleX(0);
    transform-origin: left;
    transition: transform 0.4s ease;
    z-index: 2;
}

.card:
    hover::before {
    transform: scaleX(1);
}

.card:
    hover {
    box-shadow: 0 12px 40px rgba(0, 0, 0, 0.12);
    transform: translateY(-6px);
}

/* Card number badge */
.card-number {
    position: absolute;
    top: 16px;
    right: 16px;
    width: 32px;
    height: 32px;
    background: rgba(26, 58, 92, 0.85);
    color: #fff;
    font-size: 13px;
    font-weight: 700;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 3;
    opacity: 0;
    transform: scale(0.5);
    transition: opacity 0.3s ease, transform 0.3s ease;
    backdrop-filter: blur(4px);
}

.card:
    hover .card-number {
    opacity: 1;
    transform: scale(1);
}

.card-img-wrap {
    overflow: hidden;
    position: relative;
}

/* Image overlay on hover */
.card-img-wrap::
    after {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(180deg, transparent 40%, rgba(26, 42, 58, 0.3) 100%);
    opacity: 0;
    transition: opacity 0.4s ease;
    z-index: 1;
}

.card:
    hover .card-img-wrap::after {
    opacity: 1;
}

.card-img {
    width: 100%;
    height: 233px;
    object-fit: cover;
    display: block;
    transition: transform 0.6s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

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

.card-body {
    padding: 35px 33px 33px;
    position: relative;
}

.card-title {
    font-size: 20px;
    font-weight: 700;
    color: rgba(16, 24, 40, 1);
    margin-bottom: 14px;
    line-height: 1.3;
    transition: color 0.3s ease;
}

.card:
    hover .card-title {
    color: #1a3a5c;
}

.card-text {
    font-size: 14px;
    line-height: 1.7;
    color: rgba(74, 85, 101, 1);
    margin-bottom: 24px;
    transition: color 0.3s ease;
    display: -webkit-box;           /* 将对象作为弹性伸缩盒子模型显示 */
    -webkit-box-orient: vertical;   /* 设置伸缩盒子的子元素排列方式为垂直 */
    -webkit-line-clamp: 3;          /* 限制在一个块元素显示的文本的行数 */
    overflow: hidden;               /* 隐藏溢出的内容 */
}

.card:
    hover .card-text {
    color: #5a6a7a;
}

.card-btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    font-size: 14px;
    font-weight: 600;
    color: rgba(54, 65, 83, 1);
    text-decoration: none;
    padding: 15px 0;
    border-top: 1px solid #eee;
    width: 100%;
    justify-content: center;
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
    box-sizing: border-box;
    border: 1px solid rgba(236, 238, 241, 1);
    border-radius: 8px;
    background: rgba(255, 255, 255, 1);
}

/* Button background fill on hover */
.card-btn::
    before {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 0;
    background: #1a3a5c;
    transition: height 0.3s ease;
    z-index: 0;
}

.card-btn:
    hover::before {
    height: 100%;
}

.card-btn:
    hover {
    color: #fff;
    border-top-color: #1a3a5c;
}

.card-btn
    span,
.card-btn .arrow {
    position: relative;
    z-index: 1;
}

.card-btn .arrow {
    font-size: 14px;
    transition: transform 0.3s ease;
}

.card-btn:
    hover .arrow {
    transform: translateX(6px);
}

/* ===== Section 3: Latest News ===== */
.section-news {
    background: #fff;
    padding: 90px 0 100px;
}

.news-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 83px;
}

.news-card {
    background: #fff;
    border-top: 1px solid rgba(211, 214, 211, 1);
}

.news-tag {
    display: inline-block;
    text-transform: uppercase;
    margin-bottom: 27px;
    color: rgba(0, 142, 218, 1);
    font-size: 12px;
    font-weight: 500;
    line-height: 15px;
    letter-spacing: 0px;
    text-align: left;
    padding-top: 30px;
}

.news-card-title {
    margin-bottom: 19px;
    color: rgba(16, 24, 40, 1);
    font-family: "Space Grotesk";
    font-size: 20px;
    font-weight: 700;
    line-height: 24px;
    letter-spacing: 0px;
    text-align: left;
}
.news-card-title
    a{
    margin-bottom: 19px;
    color: rgba(16, 24, 40, 1);
    font-family: "Space Grotesk";
    font-size: 20px;
    font-weight: 700;
    line-height: 24px;
    letter-spacing: 0px;
    text-align: left;
}
.news-card-desc {
    margin-bottom: 48px;
    color: rgba(74, 85, 101, 1);
    font-size: 14px;
    font-weight: 400;
    line-height: 24px;
    letter-spacing: 0px;
    text-align: left;
}

.news-card-img {
    width: 100%;
    height: 305px;
    object-fit: cover;
    border-radius: 4px;
    display: block;
    margin-bottom: 16px;
}

/* ===== Section 4: Featured Projects ===== */
.section-projects {
    background: #f5f6f8;
    padding: 80px 0 115px;
}

.projects-header {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    margin-bottom: 50px;
}

.projects-header-left .section-heading {
    margin-bottom: 0;
    color: rgba(30, 41, 57, 1);
    font-size: 34px;
    font-weight: 500;
    line-height: 41px;
    letter-spacing: 0px;
    text-align: left;
}

.projects-header-left .title-underline {
    width: 24px;
    height: 3px;
    background: #1a2a3a;
    margin-top: 14px;
}

.projects-nav {
    display: flex;
    gap: 13px;
    margin-top: 4px;
    margin-right: 9%;
}

.projects-nav
    button {
    width: 44px;
    height: 44px;
    border-radius: 50%;
    border: none;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 24px;
    transition: all 0.3s;
    font-weight: 300;
    text-align: center;
}

.projects-nav .proj-prev {
    background: #d0d5da;
    color: #fff;
}

.projects-nav .proj-prev:
    hover {
    background: #b8bec4;
}

.projects-nav .proj-next {
    background: #1a3a5c;
    color: #fff;
}

.projects-nav .proj-next:
    hover {
    background: #2a5a8c;
}

.projects-scroll-wrap {
    position: relative;
    overflow: hidden;
}

.projects-track {
    display: flex;
    gap: 50px;
    overflow-x: auto;
    scroll-behavior: smooth;
    scrollbar-width: none;
    -ms-overflow-style: none;
    padding-bottom: 52px;
}

.projects-track::
    -webkit-scrollbar {
    display: none;
}

.project-card {
    flex: 0 0 354px;
    background: transparent;
}

.project-card-img {
    width: 100%;
    height: 247px;
    object-fit: cover;
    display: block;
    border-radius: 2px;
}

.project-card-body {
    padding: 18px 0 0;
}

.project-card-title {
    margin-bottom: 22px;
    color: rgba(16, 24, 40, 1);
    font-family: "Space Grotesk";
    font-size: 20px;
    font-weight: 700;
    line-height: 24px;
    letter-spacing: 0px;
    text-align: left;
    display: -webkit-box;
    -webkit-box-orient: vertical;
    -webkit-line-clamp: 2;
    overflow: hidden;
}

.project-card-desc {
    margin-bottom: auto;
    min-height: auto;
    color: rgba(74, 85, 101, 1);
    font-size: 14px;
    font-weight: 400;
    line-height: 24px;
    letter-spacing: 0px;
    text-align: left;
}

.project-card-divider {
    width: 100%;
    height: 1px;
    background: #dce1e6;
    margin-bottom: 14px;
}

.project-card .link-arrow {
    color: rgba(54, 65, 83, 1);
    font-size: 14px;
    font-weight: 700;
    line-height: 17px;
    letter-spacing: 0px;
    text-align: left;
}

/* ===== Section 5: Our Clients ===== */
.section-clients {
    padding: 90px 0 85px;
    background: rgba(249, 250, 251, 1);
}

.cont_tight {
    float: left;
    margin-top: 30px;
}

.clients-grid {
    width: 84%;
    /* display: grid; */
    /* grid-template-columns: repeat(6, 1fr); */
    /* gap: 30px 40px; */
    /* align-items: center; */
    margin-top: 10px;
    float: right;
}

.client-logo {
    display: flex;
    align-items: center;
    justify-content: center;
    height: 60px;
    padding: 10px 16px;
    /* filter: grayscale(100%); */
    opacity: 0.7;
    transition: all 0.3s;
    width: 229px;
    height: 95px;
    box-sizing: border-box;
    border: 1px solid rgba(238, 238, 238, 1);
    background: rgba(255, 255, 255, 1);
}

.client-logo:
    hover {
    filter: grayscale(0%);
    opacity: 1;
}

.client-logo
    img {
    max-width: 100%;
    max-height: 45px;
    object-fit: contain;
}

.client-logo-text {
    font-size: 16px;
    font-weight: 700;
    color: #555;
    letter-spacing: 1px;
}



/* ===== Scroll Animations ===== */
.animate-on-scroll {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.7s cubic-bezier(0.25, 0.46, 0.45, 0.94),
        transform 0.7s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

.animate-on-scroll.animated {
    opacity: 1;
    transform: translateY(0);
}

.animate-on-scroll.delay-1 {
    transition-delay: 0.1s;
}

.animate-on-scroll.delay-2 {
    transition-delay: 0.2s;
}

.animate-on-scroll.delay-3 {
    transition-delay: 0.3s;
}

.animate-on-scroll.delay-4 {
    transition-delay: 0.4s;
}

.animate-on-scroll.delay-5 {
    transition-delay: 0.5s;
}

.animate-on-scroll.delay-6 {
    transition-delay: 0.6s;
}

.animate-fade-left {
    opacity: 0;
    transform: translateX(-40px);
    transition: opacity 0.8s ease, transform 0.8s ease;
}

.animate-fade-left.animated {
    opacity: 1;
    transform: translateX(0);
}

.animate-fade-right {
    opacity: 0;
    transform: translateX(40px);
    transition: opacity 0.8s ease, transform 0.8s ease;
}

.animate-fade-right.animated {
    opacity: 1;
    transform: translateX(0);
}

.animate-scale {
    opacity: 0;
    transform: scale(0.92);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

.animate-scale.animated {
    opacity: 1;
    transform: scale(1);
}

/* Title underline animation */
.title-underline,
.title-bar,
.projects-header-left .title-underline {
    width: 0;
    transition: width 0.6s cubic-bezier(0.25, 0.46, 0.45, 0.94) 0.3s;
}

.title-underline.animated,
.title-bar.animated,
.projects-header-left .title-underline.animated {
    width: 28px;
}

.projects-header-left .title-underline.animated {
    width: 24px;
}

/* Card image zoom on hover */
.card-img-wrap {
    overflow: hidden;
    border-radius: 4px 4px 0 0;
}

.card-img-wrap .card-img {
    transition: transform 0.6s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

.card:
    hover .card-img-wrap .card-img {
    transform: scale(1.08);
}

.news-card-img-wrap {
    overflow: hidden;
    border-radius: 4px;
    margin-bottom: 28px;
}

.news-card-img-wrap .news-card-img {
    margin-bottom: 0;
    transition: transform 0.6s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

.news-card:
    hover .news-card-img-wrap .news-card-img {
    transform: scale(1.06);
}

.project-card-img-wrap {
    overflow: hidden;
    border-radius: 2px;
}

.project-card-img-wrap .project-card-img {
    transition: transform 0.6s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

.project-card:
    hover .project-card-img-wrap .project-card-img {
    transform: scale(1.06);
}

/* Client logo hover */
.client-logo {
    transition: transform 0.3s ease, opacity 0.3s ease;
}

.client-logo:
    hover {
    transform: scale(1.08);
}

/* Button pulse animation */
    @keyframes btnPulse {

    0%,
    100% {
        box-shadow: 0 0 0 0 rgba(26, 58, 92, 0.3);
    }

    50% {
    box-shadow: 0 0 0 8px rgba(26, 58, 92, 0);
    }
}

.btn-primary {
    animation: btnPulse 2.5s ease-in-out infinite;
}

.btn-primary:
    hover {
    animation: none;
}

/* Smooth section transitions */
    section {
    will-change: transform;
}

/* Nav button arrow animation */
.projects-nav
    button {
    position: relative;
    overflow: hidden;
}

.projects-nav
    button::after {
    content: '';
    position: absolute;
    inset: 0;
    background: rgba(255, 255, 255, 0.15);
    border-radius: 50%;
    transform: scale(0);
    transition: transform 0.3s ease;
}

.projects-nav
    button:hover::after {
    transform: scale(1);
}

/* Card button slide effect */
.card-btn,
.project-card .link-arrow,
.news-card .link-arrow {
    position: relative;
}

.card-btn::
    after,
.project-card .link-arrow::after,
.news-card .link-arrow::after {
    /* content: ''; */
    position: absolute;
    bottom: 8px;
    left: 0;
    width: 0;
    height: 1.5px;
    background: #3a7bd5;
    transition: width 0.3s ease;
}

.card-btn:
    hover::after,
.project-card .link-arrow:hover::after,
.news-card .link-arrow:hover::after {
    width: 100%;
}

/* Divider line animation */
.project-card-divider {
    transform: scaleX(0);
    transform-origin: left;
    transition: transform 0.5s ease 0.2s;
}

.project-card.animated .project-card-divider {
    transform: scaleX(1);
}

/* News tag animation */
.news-tag {
    display: inline-block;
    opacity: 0;
    transform: translateY(-10px);
    transition: opacity 0.4s ease, transform 0.4s ease;
}

.news-card.animated .news-tag {
    opacity: 1;
    transform: translateY(0);
}

/* About section tag animation */
.company-tag {
    opacity: 0;
    transform: translateY(10px);
    transition: opacity 0.5s ease 0.5s, transform 0.5s ease 0.5s;
}

.section-about.animated .company-tag {
    opacity: 1;
    transform: translateY(0);
}








.container_banner {
    width: 100%;
    height: 100vh;
    overflow: hidden;
}

.banner-swiper {
    width: 100%;
    height: 100%;
}

.banner-swiper .swiper-slide {
    position: relative;
}

.banner-swiper .swiper-slide
    img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.banner-swiper .swiper-pagination-bullet {
    width: 12px;
    height: 12px;
    background: rgba(255, 255, 255, 0.5);
    opacity: 1;
    transition: all 0.3s;
}

.banner-swiper .swiper-pagination-bullet-active {
    background: #fff;
    width: 32px;
    border-radius: 6px;
}

.banner-swiper .swiper-button-next,
.banner-swiper .swiper-button-prev {
    color: #fff;
    background: rgba(0, 0, 0, 0.3);
    width: 50px;
    height: 50px;
    border-radius: 50%;
    transition: background 0.3s;
}

.banner-swiper .swiper-button-next:
    hover,
.banner-swiper .swiper-button-prev:hover {
    background: rgba(0, 0, 0, 0.5);
}

.banner-swiper .swiper-button-next::
    after,
.banner-swiper .swiper-button-prev::after {
    font-size: 20px;
    font-weight: bold;
}




/* Projects Progress Bar */
.projects-progress {
    width: 100%;
    height: 3px;
    background: #dce1e6;
    border-radius: 2px;
    margin-top: 30px;
    overflow: hidden;
}

.projects-progress-bar {
    height: 100%;
    width: 30%;
    background: linear-gradient(90deg, #008EDA, #008EDA);
    border-radius: 2px;
    transition: width 0.4s ease;
}

.container_right {
    max-width: 1750px;
    margin: 0 0 0 auto;
}


.clients-grid .clients-gr {
    float: left;
    margin-bottom: 28px;
}

.clients-grid .clients-gr .client-logo {
    float: left;
    margin-left: 28px;
}
.clients-grid .clients-gr .client-logo:nth-child(1) {
    margin-left: 0;
}
.clients-grid .clients-gr .client-logo
    img {}


.clients-grid .clients-grid1{
    margin-left: 77px;
}
.clients-grid .clients-grid2{
    
}
.clients-grid .clients-grid3{
    margin-left: 140px;
}


/* ============================================================
   全局适配：基准 1600px，最小兼容 1280px（1366px 断点覆盖 1280~1366）
   ============================================================ */
    @media (max-width: 1366px) {

    /* 版心安全边距，避免内容贴窗口边缘 */
    .container,
    .container_right {
        padding: 0 20px;
    box-sizing: border-box;
    }

    /* 通用标题 */
    .section-heading {
    font-size: 30px;
    line-height: 38px;
    }

    /* ===== Section 1: Who is SWCHEM ===== */
    .section-about {
    padding: 80px 0 70px;
    }

    .section-about .container {
    gap: 80px;
    }

    .about-left {
    min-width: 260px;
    }

    .about-left .subtitle,
    .about-left .main-title {
    font-size: 48px;
    }

    .about-right p {
    font-size: 16px;
    }

    /* ===== Section 2: What we do ===== */
    .section-services {
    padding: 70px 0 80px;
    }

    .section-services .section-header {
    margin-bottom: 40px;
    }

    .section-services .section-title {
    font-size: 30px;
    }

    .section-services .section-desc {
    font-size: 16px;
    }

    .cards-grid {
    gap: 18px;
    }

    .card-img {
    height: 190px;
    }

    .card-body {
    padding: 26px 22px 24px;
    }

    .card-title {
    font-size: 18px;
    }

    .card-text {
    font-size: 13px;
    }

    /* ===== Section 3: Latest News ===== */
    .section-news {
    padding: 70px 0 80px;
    }

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

    .news-grid {
    gap: 40px;
    }

    .news-card-title {
    font-size: 18px;
    }

    .news-card-img {
    height: 250px;
    }

    /* ===== Section 4: Featured Projects ===== */
    .section-projects {
    padding: 70px 0 90px;
    }

    .projects-header {
    margin-bottom: 40px;
    }

    .projects-header-left .section-heading {
    font-size: 30px;
    }

    .projects-nav {
    margin-right: 20px;
    }

    /* ===== Section 5: Our Clients ===== */
    .section-clients {
    padding: 70px 0 60px;
    }

    .clients-grid {
    width: 82%;
    }

    .client-logo {
    width: 180px;
    height: 80px;
    }

    .clients-grid .clients-gr .client-logo {
    margin-left: 16px;
    }

    .clients-grid .clients-grid1 {
    margin-left: 40px;
    }

    .clients-grid .clients-grid3 {
    margin-left: 80px;
    }

    /* ===== Footer ===== */
    .footer-top {
    gap: 50px;
    }

    .footer-bottom {
    width: 92%;
    flex-wrap: wrap;
    gap: 10px;
    }
};
}

.project-card-divider {
    width: 100%;
    height: 1px;
    background: #dce1e6;
    margin-bottom: 14px;
}

.project-card .link-arrow {
    color: rgba(54, 65, 83, 1);
    font-size: 14px;
    font-weight: 700;
    line-height: 17px;
    letter-spacing: 0px;
    text-align: left;
}

/* ===== Section 5: Our Clients ===== */
.section-clients {
    padding: 90px 0 85px;
    background: rgba(249, 250, 251, 1);
}

.cont_tight {
    float: left;
    margin-top: 30px;
}

.clients-grid {
    width: 84%;
    /* display: grid; */
    /* grid-template-columns: repeat(6, 1fr); */
    /* gap: 30px 40px; */
    /* align-items: center; */
    margin-top: 10px;
    float: right;
}

.client-logo {
    display: flex;
    align-items: center;
    justify-content: center;
    height: 60px;
    padding: 10px 16px;
    /* filter: grayscale(100%); */
    opacity: 0.7;
    transition: all 0.3s;
    width: 229px;
    height: 95px;
    box-sizing: border-box;
    border: 1px solid rgba(238, 238, 238, 1);
    background: rgba(255, 255, 255, 1);
}

.client-logo:hover {
    filter: grayscale(0%);
    opacity: 1;
}

.client-logo img {
    max-width: 100%;
    max-height: 45px;
    object-fit: contain;
}

.client-logo-text {
    font-size: 16px;
    font-weight: 700;
    color: #555;
    letter-spacing: 1px;
}



/* ===== Scroll Animations ===== */
.animate-on-scroll {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.7s cubic-bezier(0.25, 0.46, 0.45, 0.94),
        transform 0.7s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

.animate-on-scroll.animated {
    opacity: 1;
    transform: translateY(0);
}

.animate-on-scroll.delay-1 {
    transition-delay: 0.1s;
}

.animate-on-scroll.delay-2 {
    transition-delay: 0.2s;
}

.animate-on-scroll.delay-3 {
    transition-delay: 0.3s;
}

.animate-on-scroll.delay-4 {
    transition-delay: 0.4s;
}

.animate-on-scroll.delay-5 {
    transition-delay: 0.5s;
}

.animate-on-scroll.delay-6 {
    transition-delay: 0.6s;
}

.animate-fade-left {
    opacity: 0;
    transform: translateX(-40px);
    transition: opacity 0.8s ease, transform 0.8s ease;
}

.animate-fade-left.animated {
    opacity: 1;
    transform: translateX(0);
}

.animate-fade-right {
    opacity: 0;
    transform: translateX(40px);
    transition: opacity 0.8s ease, transform 0.8s ease;
}

.animate-fade-right.animated {
    opacity: 1;
    transform: translateX(0);
}

.animate-scale {
    opacity: 0;
    transform: scale(0.92);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

.animate-scale.animated {
    opacity: 1;
    transform: scale(1);
}

/* Title underline animation */
.title-underline,
.title-bar,
.projects-header-left .title-underline {
    width: 0;
    transition: width 0.6s cubic-bezier(0.25, 0.46, 0.45, 0.94) 0.3s;
}

.title-underline.animated,
.title-bar.animated,
.projects-header-left .title-underline.animated {
    width: 28px;
}

.projects-header-left .title-underline.animated {
    width: 24px;
}

/* Card image zoom on hover */
.card-img-wrap {
    overflow: hidden;
    border-radius: 4px 4px 0 0;
}

.card-img-wrap .card-img {
    transition: transform 0.6s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

.card:hover .card-img-wrap .card-img {
    transform: scale(1.08);
}

.news-card-img-wrap {
    overflow: hidden;
    border-radius: 4px;
    margin-bottom: 28px;
}

.news-card-img-wrap .news-card-img {
    margin-bottom: 0;
    transition: transform 0.6s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

.news-card:hover .news-card-img-wrap .news-card-img {
    transform: scale(1.06);
}

.project-card-img-wrap {
    overflow: hidden;
    border-radius: 2px;
}

.project-card-img-wrap .project-card-img {
    transition: transform 0.6s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

.project-card:hover .project-card-img-wrap .project-card-img {
    transform: scale(1.06);
}

/* Client logo hover */
.client-logo {
    transition: transform 0.3s ease, opacity 0.3s ease;
}

.client-logo:hover {
    transform: scale(1.08);
}

/* Button pulse animation */
@keyframes btnPulse {

    0%,
    100% {
        box-shadow: 0 0 0 0 rgba(26, 58, 92, 0.3);
    }

    50% {
        box-shadow: 0 0 0 8px rgba(26, 58, 92, 0);
    }
}

.btn-primary {
    animation: btnPulse 2.5s ease-in-out infinite;
}

.btn-primary:hover {
    animation: none;
}

/* Smooth section transitions */
section {
    will-change: transform;
}

/* Nav button arrow animation */
.projects-nav button {
    position: relative;
    overflow: hidden;
}

.projects-nav button::after {
    content: '';
    position: absolute;
    inset: 0;
    background: rgba(255, 255, 255, 0.15);
    border-radius: 50%;
    transform: scale(0);
    transition: transform 0.3s ease;
}

.projects-nav button:hover::after {
    transform: scale(1);
}

/* Card button slide effect */
.card-btn,
.project-card .link-arrow,
.news-card .link-arrow {
    position: relative;
}

.card-btn::after,
.project-card .link-arrow::after,
.news-card .link-arrow::after {
    /* content: ''; */
    position: absolute;
    bottom: 8px;
    left: 0;
    width: 0;
    height: 1.5px;
    background: #3a7bd5;
    transition: width 0.3s ease;
}

.card-btn:hover::after,
.project-card .link-arrow:hover::after,
.news-card .link-arrow:hover::after {
    width: 100%;
}

/* Divider line animation */
.project-card-divider {
    transform: scaleX(0);
    transform-origin: left;
    transition: transform 0.5s ease 0.2s;
}

.project-card.animated .project-card-divider {
    transform: scaleX(1);
}

/* News tag animation */
.news-tag {
    display: inline-block;
    opacity: 0;
    transform: translateY(-10px);
    transition: opacity 0.4s ease, transform 0.4s ease;
}

.news-card.animated .news-tag {
    opacity: 1;
    transform: translateY(0);
}

/* About section tag animation */
.company-tag {
    opacity: 0;
    transform: translateY(10px);
    transition: opacity 0.5s ease 0.5s, transform 0.5s ease 0.5s;
}

.section-about.animated .company-tag {
    opacity: 1;
    transform: translateY(0);
}








.container_banner {
    width: 100%;
    height: auto;
    overflow: hidden;
}

.banner-swiper {
    width: 100%;
    height: 100%;
}

.banner-swiper .swiper-slide {
    position: relative;
}

.banner-swiper .swiper-slide img {
    width: 100%;
    height: 100%;
}

.banner-swiper .swiper-pagination-bullet {
    width: 12px;
    height: 12px;
    background: rgba(255, 255, 255, 0.5);
    opacity: 1;
    transition: all 0.3s;
}

.banner-swiper .swiper-pagination-bullet-active {
    background: #fff;
    width: 32px;
    border-radius: 6px;
}

.banner-swiper .swiper-button-next,
.banner-swiper .swiper-button-prev {
    color: #fff;
    background: rgba(0, 0, 0, 0.3);
    width: 50px;
    height: 50px;
    border-radius: 50%;
    transition: background 0.3s;
}

.banner-swiper .swiper-button-next:hover,
.banner-swiper .swiper-button-prev:hover {
    background: rgba(0, 0, 0, 0.5);
}

.banner-swiper .swiper-button-next::after,
.banner-swiper .swiper-button-prev::after {
    font-size: 20px;
    font-weight: bold;
}




/* Projects Progress Bar */
.projects-progress {
    width: 100%;
    height: 3px;
    background: #dce1e6;
    border-radius: 2px;
    margin-top: 30px;
    overflow: hidden;
}

.projects-progress-bar {
    height: 100%;
    width: 30%;
    background: linear-gradient(90deg, #008EDA, #008EDA);
    border-radius: 2px;
    transition: width 0.4s ease;
}

.container_right {
    max-width: 1750px;
    margin: 0 0 0 auto;
}


.clients-grid .clients-gr {

float: left;

margin-bottom: 28px;
}

.clients-grid .clients-gr .client-logo {

float: left;

margin-left: 28px;
}
.clients-grid .clients-gr .client-logo:nth-child(1) {

margin-left: 0;
}
.clients-grid .clients-gr .client-logo img {}


.clients-grid .clients-grid1{
margin-left: 77px;
}
.clients-grid .clients-grid2{
    
}
.clients-grid .clients-grid3{
    margin-left: 140px;
}


/* ============================================================
   全局适配：基准 1600px，最小兼容 1280px（1366px 断点覆盖 1280~1366）
   ============================================================ */
@media (max-width: 1366px) {

    /* 版心安全边距，避免内容贴窗口边缘 */
    .container,
    .container_right {
        padding: 0 20px;
        box-sizing: border-box;
    }

    /* 通用标题 */
    .section-heading {
        font-size: 30px;
        line-height: 38px;
    }

    /* ===== Section 1: Who is SWCHEM ===== */
    .section-about {
        padding: 80px 0 70px;
    }

    .section-about .container {
        gap: 80px;
    }

    .about-left {
        min-width: 260px;
    }

    .about-left .subtitle,
    .about-left .main-title {
        font-size: 48px;
    }

    .about-right p {
        font-size: 16px;
    }

    /* ===== Section 2: What we do ===== */
    .section-services {
        padding: 70px 0 80px;
    }

    .section-services .section-header {
        margin-bottom: 40px;
    }

    .section-services .section-title {
        font-size: 30px;
    }

    .section-services .section-desc {
        font-size: 16px;
    }

    .cards-grid {
        gap: 18px;
    }

    .card-img {
        height: 190px;
    }

    .card-body {
        padding: 26px 22px 24px;
    }

    .card-title {
        font-size: 18px;
    }

    .card-text {
        font-size: 13px;
    }

    /* ===== Section 3: Latest News ===== */
    .section-news {
        padding: 70px 0 80px;
    }

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

    .news-grid {
        gap: 40px;
    }

    .news-card-title {
        font-size: 18px;
    }

    .news-card-img {
        height: 250px;
    }

    /* ===== Section 4: Featured Projects ===== */
    .section-projects {
        padding: 70px 0 90px;
    }

    .projects-header {
        margin-bottom: 40px;
    }

    .projects-header-left .section-heading {
        font-size: 30px;
    }

    .projects-nav {
        margin-right: 20px;
    }

    /* ===== Section 5: Our Clients ===== */
    .section-clients {
        padding: 70px 0 60px;
    }

    .clients-grid {
        width: 82%;
    }

    .client-logo {
        width: 180px;
        height: 80px;
    }

    .clients-grid .clients-gr .client-logo {
        margin-left: 16px;
    }

    .clients-grid .clients-grid1 {
        margin-left: 40px;
    }

    .clients-grid .clients-grid3 {
        margin-left: 80px;
    }

    /* ===== Footer ===== */
    .footer-top {
        gap: 50px;
    }

    .footer-bottom {
        width: 92%;
        flex-wrap: wrap;
        gap: 10px;
    }
}