@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;
    padding: 0 20px;
    box-sizing: border-box;
}

.second_banner {
    width: 100%;
    height: 100%;
    background-size: cover;
    background-position: center;
    /* position: relative; */
}

.second_banner img {
    width: 100%;
    height: 100%;
}

.second_banner h2 {
    color: rgba(255, 255, 255, 1);
    font-style: Bold;
    font-size: 60px;
    font-weight: 700;
    line-height: 80px;
    letter-spacing: 0px;
    text-align: left;
    position: absolute;
    top: 45%;
    left: 10%;
}

/* ============================================================
   ============================================================ */

.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);
}

.delay-1 {
    transition-delay: 0.1s;
}

.delay-2 {
    transition-delay: 0.2s;
}

.delay-3 {
    transition-delay: 0.3s;
}

.delay-4 {
    transition-delay: 0.4s;
}

.delay-5 {
    transition-delay: 0.5s;
}

.delay-6 {
    transition-delay: 0.6s;
}

.who-container {
    max-width: 1600px;
    margin: 0 auto;
    padding: 0 20px;
    box-sizing: border-box;
}

.who-section {
    background: #f4f5f7;
    padding: 70px 0 0;
}


.who-header {
    text-align: left;
    margin-bottom: 45px;
}

.who-title {
    display: inline-block;
    font-size: 40px;
    font-weight: 700;
    color: #1a3a6c;
    line-height: 1.2;
}

.who-underline {
    width: 54px;
    height: 4px;
    background: rgba(55, 174, 226, 1);
    margin-top: 21px;
    transform: scaleX(0);
    transition: transform 0.8s cubic-bezier(0.25, 0.46, 0.45, 0.94) 0.3s;
}

.who-header.animated .who-underline {
    transform: scaleX(1);
}

.who-banner {
    position: relative;
    background: #ffffff;
    /* border-radius: 8px; */
    padding: 46px 56px 46px 66px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.05);
    overflow: hidden;
    box-sizing: border-box;
    border: 1px solid rgba(193, 213, 226, 1);
    background: linear-gradient(90.00deg, rgba(239, 248, 252, 1) 0%, rgba(255, 255, 255, 1) 100%);
}

.who-banner::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0;
    width: 5px;
    height: 100%;
    background: #0B4D83;
    transform: scaleY(0);
    transform-origin: top;
    transition: transform 1s cubic-bezier(0.25, 0.46, 0.45, 0.94) 0.3s;
}

.who-banner.animated::before {
    transform: scaleY(1);
}

.who-banner-title {
    margin-bottom: 22px;
    color: rgba(11, 77, 131, 1);
    font-size: 32px;
    font-weight: 700;
    line-height: 32px;
    letter-spacing: 0px;
    text-align: left;
}

.who-banner p {
    margin-bottom: 20px;
    color: rgba(74, 85, 101, 1);
    font-size: 18px;
    font-weight: 400;
    line-height: 32px;
    letter-spacing: 0px;
    text-align: left;
}

.who-banner p:last-child {
    margin-bottom: 0;
}

.who-cards {
    display: flex;
    justify-content: space-between;
    gap: 24px;
    margin-top: 67px;
    position: relative;
    z-index: 2;
    padding-bottom: 111px;
}

.who-card {
    flex: 1;
    background: #ffffff;
    border: 1px solid #e0e0e0;
    border-radius: 8px;
    padding: 30px 28px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.05);
    transition: transform 0.35s ease, box-shadow 0.35s ease, border-color 0.35s ease;
}

.who-card-title {
    color: rgba(49, 64, 79, 1);
    font-size: 30px;
    font-weight: 700;
    line-height: 32px;
    letter-spacing: 0px;
    text-align: left;
}

.who-card-line {
    width: 30px;
    height: 3px;
    background: #0B4D83;
    margin: 14px 0 16px;
    transition: width 0.35s ease, background 0.35s ease;
}

.who-card p {
    color: rgba(74, 85, 101, 1);
    font-size: 18px;
    font-weight: 400;
    line-height: 32px;
    letter-spacing: 0px;
    text-align: left;
}

.who-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 12px 28px rgba(26, 58, 108, 0.14);
    border-color: rgba(26, 58, 108, 0.35);
}

.who-card:hover .who-card-line {
    width: 80px;
    background: #3b7dcc;
}

/* ---------- SWCHEM in Numbers ---------- */
.numbers-section {
    padding: 80px 0 90px;
    position: relative;
    overflow: hidden;
    background: linear-gradient(90.00deg, rgba(6, 60, 105, 1) 0%, rgba(10, 73, 125, 1) 100%);
}

.numbers-section::before {
    content: '';
    position: absolute;
    top: -120px;
    right: -100px;
    width: 420px;
    height: 420px;
    background: radial-gradient(circle, rgba(59, 125, 204, 0.14) 0%, transparent 70%);
    pointer-events: none;
}

.numbers-header {
    text-align: left;
    margin-bottom: 55px;
}

.numbers-header h2 {
    display: inline-block;
    font-size: 40px;
    font-weight: 700;
    color: #ffffff;
    line-height: 1.2;
}

.numbers-underline {
    width: 46px;
    height: 4px;
    margin-top: 20px;
    background: rgba(55, 174, 226, 1);
    transform: scaleX(0);
    transition: transform 0.8s cubic-bezier(0.25, 0.46, 0.45, 0.94) 0.3s;
}

.numbers-header.animated .numbers-underline {
    transform: scaleX(1);
}

.numbers-grid {
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    gap: 16px;
}

.number-card {
    position: relative;
    border-radius: 8px;
    padding: 28px 24px;
    overflow: hidden;
    transition: transform 0.35s ease, box-shadow 0.35s ease, background 0.35s ease;
    box-sizing: border-box;
    border: 1px solid rgba(226, 233, 238, 0.3);
    background: rgba(255, 255, 255, 0.1);
}

.number-card::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0;
    width: 4px;
    height: 100%;
    background: #4a9be8;
    opacity: 0.25;
    transition: opacity 0.35s ease;
}

.number-value {
    margin-bottom: 30px;
    color: rgba(255, 255, 255, 1);
    font-size: 60px;
    font-weight: 700;
    letter-spacing: 0px;
    text-align: left;
}

.number-value .suffix {
    font-size: 40px;
    margin-left: 2px;
}

.number-card p {
    color: rgba(255, 255, 255, 1);
    font-size: 18px;
    font-weight: 400;
    line-height: 32px;
    letter-spacing: 0px;
    text-align: left;
}

.number-card:hover {
    transform: translateY(-6px);
    background: #24446a;
    box-shadow: 0 10px 24px rgba(0, 0, 0, 0.3);
}

.number-card:hover::before {
    opacity: 1;
}

@media (max-width: 1366px) {
    .second_banner h2 {
        font-size: 48px;
        line-height: 64px;
        left: 20px;
    }

    .who-title {
        font-size: 34px;
    }

    .who-banner {
        padding: 38px 44px 38px 52px;
    }

    .who-banner-title {
        font-size: 27px;
        line-height: 30px;
        margin-bottom: 18px;
    }

    .who-banner p {
        font-size: 16px;
        line-height: 28px;
    }

    .who-cards {
        gap: 20px;
        margin-top: 55px;
        padding-bottom: 90px;
    }

    .who-card {
        padding: 26px 22px;
    }

    .who-card-title {
        font-size: 23px;
        line-height: 30px;
    }

    .who-card p {
        font-size: 16px;
        line-height: 28px;
    }

    .numbers-section {
        padding: 65px 0 75px;
    }

    .numbers-header {
        margin-bottom: 42px;
    }

    .numbers-header h2 {
        font-size: 34px;
    }

    .numbers-grid {
        gap: 14px;
    }

    .number-card {
        padding: 24px 18px;
    }

    .number-value {
        font-size: 46px;
        margin-bottom: 22px;
    }

    .number-value .suffix {
        font-size: 32px;
    }

    .number-card p {
        font-size: 15px;
        line-height: 24px;
    }

    .footer-top {
        gap: 50px;
    }

    .wwd-page-title {
        font-size: 34px;
    }

    .wwd-title-section {
        padding: 50px 20px 10px;
    }

    .wwd-head h2 {
        font-size: 30px;
    }

    .wwd-section {
        padding: 48px 40px;
    }

    .wwd-body p {
        font-size: 15px;
        line-height: 26px;
    }

    .wwd-block h3 {
        font-size: 18px;
    }

    .wwd-list {
        column-gap: 30px;
    }

    .wwd-list li {
        font-size: 15px;
        line-height: 26px;
    }

    .rnd-section {
        padding: 48px 0;
    }

    .rnd-head {
        margin-bottom: 24px;
    }

    .rnd-head h2 {
        font-size: 30px;
    }

    .rnd-intro {
        font-size: 15px;
        line-height: 26px;
        margin-bottom: 18px;
    }

    .rnd-list {
        column-gap: 40px;
    }

    .rnd-list li {
        font-size: 15px;
        line-height: 26px;
        margin-bottom: 10px;
    }

    /* Certification 页面 1280 适配 */
    .cert-block {
        margin-top: 36px;
        padding-bottom: 70px;
    }

    .cert-intro {
        font-size: 15px;
        line-height: 26px;
        margin-bottom: 18px;
    }

    .cert-list {
        column-gap: 40px;
    }

    .cert-list li {
        font-size: 15px;
        line-height: 26px;
        margin-bottom: 12px;
    }
}


.wwd-title-section {
    background: rgba(255, 255, 255, 1);
    padding: 60px 20px 10px;
}

.wwd-page-title {
    font-size: 40px;
    font-weight: 700;
    color: #1a3a6c;
    line-height: 1.2;
}

.wwd-section {
    position: relative;
    padding: 64px 54px;
    max-width: 1600px;
    width: auto;
    margin: 0 auto 50px;
}

.wwd-psa {
    --wwd-color: #0D3B66;
    box-sizing: border-box;
    border-top: 1px solid rgba(226, 233, 238, 1);
    background: linear-gradient(180.00deg, rgba(222, 243, 253, 1) 0%, rgba(245, 251, 254, 1) 100%);
    border-top: 6px solid #0B4D83;
}

.wwd-chem {
    --wwd-color: #1A7D5A;
    box-sizing: border-box;
    /* border: 1px solid rgba(226, 233, 238, 1); */
    background: linear-gradient(180.00deg, rgba(235, 250, 243, 1) 0%, rgba(247, 252, 249, 1) 100%);
    border-top: 6px solid #168353;
}

.wwd-cata {
    --wwd-color: #16819A;
    background: linear-gradient(135deg, #EAF7FC 0%, #F8FBFD 100%);
    box-sizing: border-box;
    /* border: 1px solid rgba(226, 233, 238, 1); */
    background: linear-gradient(180.00deg, rgba(221, 246, 250, 1) 0%, rgba(246, 252, 253, 1) 100%);
    border-top: 6px solid #16819A;
}

.wwd-fine {
    --wwd-color: #7352A4;
    box-sizing: border-box;
    /* border: 1px solid rgba(226, 233, 238, 1); */
    background: linear-gradient(180.00deg, rgba(249, 246, 254, 1) 0%, rgba(252, 250, 255, 1) 100%);
    border-top: 6px solid #7352A4;
    margin-bottom: 130px;
}

.wwd-head {
    margin-bottom: 28px;
}

.wwd-head h2 {
    display: inline-block;
    color: rgba(26, 89, 139, 1);
    font-size: 34px;
    font-weight: 700;
    letter-spacing: 0px;
    text-align: left;
    line-height: 1.25;
}

.wwd-underline {
    width: 39px;
    height: 4px;
    background: #7352A4;
    margin-top: 14px;
    transform: scaleX(0);
    transform-origin: left;
    transition: transform 0.8s cubic-bezier(0.25, 0.46, 0.45, 0.94) 0.25s;
}

.wwd-head.animated .wwd-underline {
    transform: scaleX(1);
}

.wwd-body p {
    margin-bottom: 14px;
    color: rgba(74, 85, 101, 1);
    font-size: 18px;
    font-weight: 400;
    line-height: 32px;
    letter-spacing: 0px;
    text-align: left;
}

.wwd-body p:last-child {
    margin-bottom: 0;
}

.wwd-block {
    margin-top: 32px;
}

.wwd-block h3 {
    margin-bottom: 18px;
    color: rgba(49, 64, 79, 1);
    font-size: 26px;
    font-weight: 700;
    line-height: 32px;
    letter-spacing: 0px;
    text-align: left;
}

.wwd-list {
    list-style: none;
    columns: 3;
    column-gap: 48px;
}

.wwd-list li {
    position: relative;
    padding-left: 26px;
    margin-bottom: 10px;
    break-inside: avoid;
    transition: color 0.3s ease, transform 0.3s ease;
    color: rgba(74, 85, 101, 1);
    font-size: 18px;
    font-weight: 400;
    line-height: 32px;
    letter-spacing: 0px;
    text-align: left;
}

.wwd-list li::before {
    content: '·';
    position: absolute;
    left: 6px;
    top: 0;
    font-weight: 700;
    color: var(--wwd-color);
}

.wwd-list li:hover {
    color: var(--wwd-color);
    transform: translateX(5px);
}

.containercolor {
    background: rgba(255, 255, 255, 1);
}

.wwd-head1 h2 {
    color: rgba(26, 89, 139, 1);
    font-style: Bold;
    font-size: 34px;
    font-weight: 700;
    line-height: 32px;
    letter-spacing: 0px;
    text-align: left;
}

.wwd-head2 h2 {
    color: rgba(28, 134, 87, 1);
    font-style: Bold;
    font-size: 34px;
    font-weight: 700;
    line-height: 32px;
    letter-spacing: 0px;
    text-align: left;
}

.wwd-head3 h2 {
    color: rgba(22, 129, 154, 1);
    font-style: Bold;
    font-size: 34px;
    font-weight: 700;
    line-height: 32px;
    letter-spacing: 0px;
    text-align: left;
}

.wwd-head4 h2 {
    color: rgba(115, 82, 164, 1);
    font-style: Bold;
    font-size: 34px;
    font-weight: 700;
    line-height: 32px;
    letter-spacing: 0px;
    text-align: left;
}

.wwd-head1 .wwd-underline {
    background: rgba(11, 77, 131, 1);
}

.wwd-head2 .wwd-underline {
    background: rgba(28, 134, 87, 1);
}

.wwd-head3 .wwd-underline {
    background: rgba(22, 129, 154, 1);
}

.wwd-head4 .wwd-underline {
    background: rgba(115, 82, 164, 1);
}


.rnd-section {
    padding: 64px 0;
    background: #ffffff;
}

.rnd-section:not(.rnd-dark) {
    box-sizing: border-box;
    border: 1px solid rgba(226, 233, 238, 1);
    background: rgba(255, 255, 255, 1);
    max-width: 1600px;
    margin: 0 auto;
    padding: 35px;
    margin-top: 47px;
    margin-bottom: 40px;
}

.rnd-dark {
    background: linear-gradient(90deg, rgba(6, 60, 105, 1) 0%, rgba(10, 73, 125, 1) 100%);
    max-width: 1600px;
    margin: 0 auto;
    padding: 35px;
    box-sizing: border-box;
}

.rnd-last {
    padding-bottom: 100px;
}

.rnd-head {
    margin-bottom: 30px;
}

.rnd-head h2 {
    display: inline-block;
    color: rgba(49, 64, 79, 1);
    font-size: 34px;
    font-weight: 700;
    line-height: 32px;
    letter-spacing: 0px;
    text-align: left;
}

.rnd-dark .rnd-head h2 {
    color: #ffffff;
}

.rnd-underline {
    width: 39px;
    height: 4px;
    background: #0B4D83;
    margin-top: 14px;
    transform: scaleX(0);
    transform-origin: left;
    transition: transform 0.8s cubic-bezier(0.25, 0.46, 0.45, 0.94) 0.25s;
}

.rnd-head.animated .rnd-underline {
    transform: scaleX(1);
}

.rnd-intro {
    margin-bottom: 22px;
    color: rgba(74, 85, 101, 1);
    font-size: 18px;
    font-weight: 400;
    line-height: 32px;
    letter-spacing: 0px;
    text-align: left;
}

.rnd-dark .rnd-intro {
    color: rgba(255, 255, 255, 0.92);
}

.rnd-list {
    list-style: none;
    columns: 2;
    column-gap: 60px;
}

.rnd-list li {
    position: relative;
    padding-left: 26px;
    margin-bottom: 12px;
    break-inside: avoid;
    transition: color 0.3s ease, transform 0.3s ease;
    color: rgba(74, 85, 101, 1);
    font-size: 18px;
    font-weight: 400;
    line-height: 32px;
    letter-spacing: 0px;
    text-align: left;
}

.rnd-list li::before {
    content: '·';
    position: absolute;
    left: 6px;
    top: 0;
    font-weight: 700;
    color: #0B4D83;
}

.rnd-dark .rnd-list li {
    color: rgba(255, 255, 255, 0.95);
}

.rnd-dark .rnd-list li::before {
    color: rgba(55, 174, 226, 1);
}

.rnd-list li:hover {
    color: #0B4D83;
    transform: translateX(5px);
}

.rnd-dark .rnd-list li:hover {
    color: #8ecdf5;
}

.who-sectioncolor{
    background: rgba(255, 255, 255, 1);
}

/* ============================================================
   Certification 页面（基准 1600px，最小兼容 1280px）
   ============================================================ */
.cert-block {
    margin-top: 35px;
    padding-bottom: 0;
}

.cert-intro {
    font-size: 18px;
    font-weight: 700;
    color: rgba(74, 85, 101, 1);
    line-height: 32px;
    margin-bottom: 24px;
}

/* 双栏 “·” 列表 */
.cert-list {
    list-style: none;
    columns: 2;
    column-gap: 60px;
}

.cert-list li {
    position: relative;
    padding-left: 26px;
    margin-bottom: 14px;
    break-inside: avoid;
    font-size: 18px;
    color: rgba(74, 85, 101, 1);
    line-height: 32px;
    transition: color 0.3s ease, transform 0.3s ease;
}

.cert-list li::before {
    content: '·';
    position: absolute;
    left: 6px;
    top: 0;
    font-weight: 700;
    color: #0B4D83;
}

/* 悬停微动效：右移 + 变深蓝 */
.cert-list li:hover {
    color: #0B4D83;
    transform: translateX(5px);
}


.who-sectioncolor .who-container {
    box-sizing: initial;
}
.who-sectioncolor-2{
    margin-bottom: 162px;
}

/* ============================================================
   PSA 页面（产品一.html，基准 1600px，最小兼容 1280px）
   ============================================================ */
.psa-page {
    background: #fff;
    padding: 60px 0 80px;
}

.psa-container {
    max-width: 1600px;
    margin: 0 auto;
    padding: 0 20px;
    box-sizing: border-box;
    /* margin-bottom: 40px; */
}

/* 顶部标题区 */
.psa-title {
    color: rgba(11, 77, 131, 1);
    font-size: 54px;
    font-weight: 700;
    line-height: 65px;
    letter-spacing: 0px;
    text-align: left;
}

.psa-underline {
    width: 54px;
    height: 4px;
    background: #37AEE2;
    margin: 16px 0 30px;
    transform: scaleX(0);
    transform-origin: left;
    transition: transform 0.8s cubic-bezier(0.25, 0.46, 0.45, 0.94) 0.2s;
}

.psa-header.animated .psa-underline {
    transform: scaleX(1);
}

.psa-header p {
    margin-bottom: 12px;
    color: rgba(74, 85, 101, 1);
    font-size: 18px;
    font-weight: 400;
    line-height: 32px;
    letter-spacing: 0px;
    text-align: left;
}

/* 技术卡片区：全宽渐变色带，横铺两边无留白 */
.psa-cards-band {
    background: linear-gradient(90.00deg, rgba(6, 60, 105, 1) 0%, rgba(10, 73, 125, 1) 100%);
    padding: 70px 0;
    margin-bottom: 60px;
    margin-top: 50px;
}

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

.psa-card {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    min-height: 96px;
    padding: 22px 26px;
    background: rgba(245, 247, 250, 1);
    border-radius: 8px;
    text-decoration: none;
    box-sizing: border-box;
    transition: transform 0.3s ease, box-shadow 0.3s ease, background 0.3s ease;
    color: rgba(11, 77, 131, 1);
    font-size: 18px;
    font-weight: 400;
    line-height: 32px;
    letter-spacing: 0px;
    text-align: left;
}

.psa-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 10px 24px rgba(11, 77, 131, 0.12);
    background: rgba(233, 237, 242, 1);
}

.psa-arrow {
    font-size: 18px;
    flex: 0 0 auto;
    transition: transform 0.3s ease;
}

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

/* 通用内容区块 */
.psa-block {
    margin-bottom: 56px;
}

.psa-block-last {
    margin-bottom: 0;
}

.psa-subtitle {
    display: inline-block;
    color: rgba(49, 64, 79, 1);
    font-size: 34px;
    font-weight: 700;
    line-height: 32px;
    letter-spacing: 0px;
    text-align: left;
}

.psa-sub-underline {
    width: 39px;
    height: 3px;
    background: #0B4D83;
    margin: 20px 0 25px;
    transform: scaleX(0);
    transform-origin: left;
    transition: transform 0.8s cubic-bezier(0.25, 0.46, 0.45, 0.94) 0.2s;
}

.psa-block.animated .psa-sub-underline {
    transform: scaleX(1);
}

.psa-block p {
    margin-bottom: 20px;
    color: rgba(74, 85, 101, 1);
    font-size: 18px;
    font-weight: 400;
    line-height: 32px;
    letter-spacing: 0px;
    text-align: left;
}

.psa-lead {
    font-weight: 400;
}

/* 圆点列表 */
.psa-list {
    list-style: none;
    max-width: 1200px;
}

.psa-list li {
    position: relative;
    padding-left: 24px;
    margin-bottom: 10px;
    transition: color 0.3s ease, transform 0.3s ease;
    color: rgba(74, 85, 101, 1);
    font-size: 18px;
    font-weight: 400;
    line-height: 32px;
    letter-spacing: 0px;
    text-align: left;
}

.psa-list li::before {
    content: '•';
    position: absolute;
    left: 6px;
    top: 0;
    font-weight: 700;
    color: rgba(51, 51, 51, 1);
}

.psa-list li:hover {
    color: #0B4D83;
    transform: translateX(5px);
}

/* Typical PSA Cycle 流程图 */
.psa-cycle {
    max-width: 900px;
    /* margin: 40px auto 10px; */
    /* padding: 36px 30px 44px; */
    /* border: 1px solid rgba(209, 213, 219, 1); */
    /* box-sizing: border-box; */
    margin: 0 auto;
}
.psa-cycle  img{
    width: 100%;
    /* margin: 40px auto 10px; */
    /* padding: 36px 30px 44px; */
    /* border: 1px solid rgba(209, 213, 219, 1); */
    /* box-sizing: border-box; */
}
.psa-cycle-title {
    text-align: center;
    font-size: 20px;
    font-weight: 700;
    color: rgba(49, 64, 79, 1);
}

.psa-cycle-underline {
    width: 28px;
    height: 3px;
    background: rgba(49, 64, 79, 1);
    margin: 10px auto 30px;
}

.psa-cycle-cols {
    display: flex;
    justify-content: space-between;
    gap: 10px;
}

.psa-step {
    flex: 1;
    text-align: center;
    border-right: 1px dashed rgba(209, 213, 219, 1);
    padding: 0 6px;
}

.psa-step:last-child {
    border-right: none;
}

.psa-step-tag {
    display: inline-block;
    background: rgba(11, 77, 131, 1);
    color: #fff;
    font-size: 13px;
    font-weight: 600;
    padding: 4px 14px;
    border-radius: 2px;
}

.psa-step-name {
    display: block;
    font-size: 13px;
    line-height: 18px;
    color: rgba(51, 51, 51, 1);
    font-style: italic;
    min-height: 36px;
    margin: 10px 0;
}

/* 竖柱装置：轮廓线风格 + 填充高度生长动画 */
.psa-vessel {
    position: relative;
    width: 44px;
    height: 170px;
    margin: 0 auto;
    border: 1px solid rgba(102, 102, 102, 1);
    box-sizing: border-box;
}

.psa-vessel::before,
.psa-vessel::after {
    content: '';
    position: absolute;
    left: 50%;
    width: 1px;
    background: rgba(102, 102, 102, 1);
}

.psa-vessel::before {
    top: -14px;
    height: 14px;
}

.psa-vessel::after {
    bottom: -14px;
    height: 14px;
}

.psa-vessel-bar {
    position: absolute;
    left: 3px;
    right: 3px;
    bottom: 3px;
    background: rgba(160, 174, 192, 0.8);
    transform: scaleY(0);
    transform-origin: bottom;
    transition: transform 0.8s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

.psa-bar-h1 { height: 75%; }
.psa-bar-h2 { height: 58%; }
.psa-bar-h3 { height: 34%; }
.psa-bar-h4 { height: 22%; }
.psa-bar-h5 { height: 62%; }

.psa-cycle.animated .psa-vessel-bar {
    transform: scaleY(1);
}

.psa-stagger-1 { transition-delay: 0.1s; }
.psa-stagger-2 { transition-delay: 0.25s; }
.psa-stagger-3 { transition-delay: 0.4s; }
.psa-stagger-4 { transition-delay: 0.55s; }
.psa-stagger-5 { transition-delay: 0.7s; }

/* Feed Gas 流入示意 */
.psa-cycle-flow {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 12px;
    margin-top: 34px;
    font-size: 14px;
    color: rgba(51, 51, 51, 1);
}

.psa-flow-line {
    width: 220px;
    height: 1px;
    background: rgba(102, 102, 102, 1);
    transform: scaleX(0);
    transform-origin: left;
    transition: transform 0.8s ease 0.6s;
}

.psa-cycle.animated .psa-flow-line {
    transform: scaleX(1);
}

.psa-flow-arrow {
    font-size: 16px;
}

/* PSA Reference 表格 */
.psa-table-wrap {
    overflow-x: auto;
    max-width: 1600px;
}

.psa-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 15px;
    color: rgba(51, 51, 51, 1);
}

.psa-table th,
.psa-table td {
    border: 1px solid rgba(209, 213, 219, 1);
    padding: 14px 16px;
    text-align: center;
    line-height: 22px;
    font-size: 18px;
    color: rgba(74, 85, 101, 1);
}

.psa-table thead th {
    background: rgba(233, 237, 242, 1);
    color: rgba(74, 85, 101, 1);
    font-size: 18px;
    font-weight: 400;
    line-height: 32px;
    letter-spacing: 0px;
}

.psa-table tbody tr {
    transition: background 0.3s ease;
}

.psa-table tbody tr:hover {
    background: rgba(245, 247, 250, 1);
}

.psa-total-row {
    background: rgba(240, 244, 248, 1);
    font-weight: 400;
}

.psa-table tbody tr.psa-total-row:hover {
    background: rgba(233, 237, 242, 1);
}

/* PSA 页面 1280 适配 */
@media (max-width: 1366px) {

    .psa-page {
        padding: 48px 0 64px;
    }

    .psa-title {
        font-size: 34px;
        line-height: 42px;
    }

    .psa-header p,
    .psa-block p,
    .psa-list li {
        font-size: 15px;
        line-height: 26px;
    }

    .psa-cards-band {
        padding: 36px 0;
    }

    .psa-cards {
        gap: 16px;
    }

    .psa-card {
        min-height: 84px;
        padding: 18px 20px;
        font-size: 15px;
        line-height: 22px;
    }

    .psa-subtitle {
        font-size: 22px;
    }

    .psa-cycle {
        padding: 30px 20px 36px;
    }

    .psa-step-name {
        font-size: 12px;
        line-height: 16px;
    }

    .psa-vessel {
        width: 38px;
        height: 150px;
    }

    .psa-table {
        font-size: 14px;
    }

    .psa-table th,
    .psa-table td {
        padding: 10px 12px;
    }
}

/* ============================================================
   H2 Separation and Purification 详情页（产品一详情.html）
   基准 1600px，最小兼容 1280px
   ============================================================ */
.h2s-page {
    background: #fff;
    padding: 0 0 80px;
}

.h2s-container {
    max-width: 1600px;
    margin: 0 auto;
    padding: 0 20px;
    box-sizing: border-box;
}

/* 标题区：全宽浅灰色带，横铺两边无留白 */
.h2s-header-band {
    background: rgba(243, 246, 248, 1);
    padding: 50px 0;
}

/* 顶部标题区 */
.h2s-title {
    color: rgba(49, 64, 79, 1);
    font-size: 34px;
    font-weight: 700;
    line-height: 32px;
    letter-spacing: 0px;
    text-align: left;
}

.h2s-title sub {
    font-size: 0.55em;
}

.h2s-underline {
    width: 54px;
    height: 4px;
    background: #0B4D83;
    margin: 24px 0 30px;
    transform: scaleX(0);
    transform-origin: left;
    transition: transform 0.8s cubic-bezier(0.25, 0.46, 0.45, 0.94) 0.2s;
}

.h2s-header.animated .h2s-underline {
    transform: scaleX(1);
}

.h2s-header p {
    margin-bottom: 12px;
    color: rgba(74, 85, 101, 1);
    font-size: 18px;
    font-weight: 400;
    line-height: 32px;
    letter-spacing: 0px;
    text-align: left;
}

/* 通用章节 */
.h2s-section {
    margin-top: 44px;
}

.h2s-section-last {
    margin-top: 44px;
}

.h2s-heading {
    display: inline-block;
    color: rgba(49, 64, 79, 1);
    font-size: 22px;
    font-weight: 700;
    line-height: 32px;
    letter-spacing: 0px;
    text-align: left;
    margin-bottom: 20px;
}

.h2s-heading-line {
    width: 28px;
    height: 3px;
    background: rgba(45, 55, 72, 1);
    margin: 12px 0 22px;
    transform: scaleX(0);
    transform-origin: left;
    transition: transform 0.8s cubic-bezier(0.25, 0.46, 0.45, 0.94) 0.2s;
    display: none;
}

.h2s-section.animated .h2s-heading-line {
    transform: scaleX(1);
}

.h2s-section p {
    margin-bottom: 12px;
    color: rgba(74, 85, 101, 1);
    font-size: 18px;
    font-weight: 400;
    line-height: 32px;
    letter-spacing: 0px;
    text-align: left;
}

.h2s-subhead {
    margin: 25px 0 23px;
    color: rgba(74, 85, 101, 1);
    font-size: 18px;
    font-weight: 400;
    line-height: 32px;
    letter-spacing: 0px;
    text-align: left;
}

/* 圆点列表 */
.h2s-list {
    list-style: none;
    max-width: 1200px;
}

.h2s-list li {
    position: relative;
    padding-left: 24px;
    margin-bottom: 10px;
    transition: color 0.3s ease, transform 0.3s ease;
    color: rgba(74, 85, 101, 1);
    font-size: 18px;
    font-weight: 400;
    line-height: 32px;
    letter-spacing: 0px;
    text-align: left;
}

.h2s-list li::before {
    content: '•';
    position: absolute;
    left: 6px;
    top: 0;
    font-weight: 700;
    color: rgba(74, 85, 101, 1);
}

.h2s-list li:hover {
    color: #0B4D83;
    transform: translateX(5px);
}

/* Technical data 表格 */
.h2s-table-wrap {
    max-width: 760px;
    overflow-x: auto;
}

.h2s-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 15px;
    color: rgba(74, 85, 101, 1);
}

.h2s-table th,
.h2s-table td {
    border: 1px solid rgba(203, 213, 224, 1);
    padding: 12px 18px;
    color: rgba(74, 85, 101, 1);
    font-size: 18px;
    font-weight: 400;
    line-height: 32px;
    letter-spacing: 0px;
    text-align: left;
}

.h2s-table thead th {
    background: rgba(234, 242, 248, 1);
    color: rgba(74, 85, 101, 1);
    font-size: 18px;
    font-weight: 400;
    line-height: 32px;
    letter-spacing: 0px;
    text-align: left;
}

.h2s-table td:first-child {
    width: 260px;
    color: rgba(74, 85, 101, 1);
    font-size: 18px;
    font-weight: 400;
    line-height: 32px;
    letter-spacing: 0px;
    text-align: left;
}

.h2s-table tbody tr {
    transition: background 0.3s ease;
}

.h2s-table tbody tr:hover {
    background: rgba(245, 247, 250, 1);
}

.h2s-note {
    font-size: 14px;
    /* font-style: italic; */
    color: rgba(113, 128, 150, 1);
    margin-top: 14px;
}

/* Typical Reference 图片网格 */
.h2s-refs {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
    margin-top: 24px;
}

.h2s-ref {
    margin: 0;
    background: #fff;
    border: 1px solid rgba(226, 233, 238, 1);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.h2s-ref:hover {
    transform: translateY(-5px);
    box-shadow: 0 12px 30px rgba(11, 77, 131, 0.12);
}

.h2s-ref-img-wrap {
    overflow: hidden;
}

.h2s-ref-img-wrap img {
    width: 100%;
    height: 300px;
    object-fit: cover;
    display: block;
    transition: transform 0.6s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

.h2s-ref:hover .h2s-ref-img-wrap img {
    transform: scale(1.06);
}

.h2s-ref figcaption {
    background: #F3F6F8;
    padding: 14px 16px;
    border-top: 1px solid rgba(226, 233, 238, 1);
    color: rgba(74, 85, 101, 1);
    font-size: 18px;
    font-weight: 400;
    line-height: 34px;
    letter-spacing: 0px;
    text-align: left;
    height: 80px;
}

/* H2 详情页 1280 适配 */
@media (max-width: 1366px) {

    .h2s-page {
        padding: 0 0 64px;
    }

    .h2s-header-band {
        padding: 36px 0;
    }

    .h2s-title {
        font-size: 34px;
        line-height: 42px;
    }

    .h2s-header p,
    .h2s-section p,
    .h2s-list li {
        font-size: 15px;
        line-height: 26px;
    }

    .h2s-section {
        margin-top: 36px;
    }

    .h2s-heading {
        font-size: 22px;
    }

    .h2s-table {
        font-size: 14px;
    }

    .h2s-table th,
    .h2s-table td {
        padding: 10px 14px;
    }

    .h2s-table td:first-child {
        width: 210px;
    }

    .h2s-refs {
        gap: 20px;
    }

    .h2s-ref-img-wrap img {
        height: 240px;
    }

    .h2s-ref figcaption {
        font-size: 13px;
        padding: 12px 14px;
    }
}

/* ============================================================
   Typical Chemical Processes（产品二.html，基准 1600px，最小兼容 1280px）
   ============================================================ */
.chem-block {
    margin: 60px 0;
}

.chem-title {
    display: inline-block;
    color: rgba(49, 64, 79, 1);
    font-size: 34px;
    font-weight: 700;
    line-height: 32px;
    letter-spacing: 0px;
    text-align: left;
}

.chem-title-line {
    width: 39px;
    height: 3px;
    background: #0B4D83;
    margin: 20px 0 25px;
    transform: scaleX(0);
    transform-origin: left;
    transition: transform 0.8s cubic-bezier(0.25, 0.46, 0.45, 0.94) 0.2s;
}

.chem-block.animated .chem-title-line {
    transform: scaleX(1);
}

.chem-item {
    margin-bottom: 34px;
}

.chem-item-title {
    position: relative;
    padding-left: 22px;
    margin-bottom: 8px;
    transition: transform 0.3s ease;
    color: rgba(74, 85, 101, 1);
    font-size: 20px;
    font-weight: 400;
    line-height: 32px;
    letter-spacing: 0px;
    text-align: left;
}

.chem-item-title::before {
    content: '•';
    position: absolute;
    left: -10px;
    top: 0;
    font-size: 38px;
    color: #667688;
}

.chem-item:hover .chem-item-title {
    transform: translateX(5px);
}

.chem-item p {
    max-width: 100%;
    color: rgba(74, 85, 101, 1);
    font-size: 18px;
    font-weight: 400;
    line-height: 32px;
    letter-spacing: 0px;
    text-align: left;
    margin-bottom: 20px;
}

/* 子列表：缩进 + 浅灰圆点 */
.chem-sublist {
    list-style: none;
    margin: 0 0 12px;
}

.chem-sublist li {
    position: relative;
    padding-left: 42px;
    margin-bottom: 8px;
    font-size: 16px;
    line-height: 28px;
    color: rgba(113, 128, 150, 1);
    transition: color 0.3s ease;
}

.chem-sublist li::before {
    content: '•';
    position: absolute;
    left: 24px;
    top: 0;
    color: rgba(160, 174, 192, 1);
}

.chem-sublist li:hover {
    color: #0B4D83;
}

/* 结尾段落 */
.chem-outro {
    max-width: 1200px;
    margin-top: 6px;
    color: rgba(74, 85, 101, 1);
    font-size: 18px;
    font-weight: 400;
    line-height: 32px;
    letter-spacing: 0px;
    text-align: left;
}

/* Typical Chemical Processes 1280 适配 */
@media (max-width: 1366px) {

    .chem-block {
        margin: 48px 0;
    }

    .chem-title {
        font-size: 26px;
        line-height: 34px;
    }

    .chem-title-line {
        margin-bottom: 32px;
    }

    .chem-item {
        margin-bottom: 28px;
    }

    .chem-item-title {
        font-size: 16px;
        line-height: 26px;
    }

    .chem-item p,
    .chem-sublist li,
    .chem-outro {
        font-size: 15px;
        line-height: 26px;
    }
}
.h3s-subhead{
    color: rgba(74, 85, 101, 1);
    font-size: 18px;
    font-weight: 700;
    line-height: 32px;
    letter-spacing: 0px;
    text-align: left;
    margin-bottom: 15px;
}
.h3s-subhead3 {
    color: rgba(74, 85, 101, 1);
    font-family: "Inter";
    font-size: 18px;
    font-weight: 400;
    line-height: 32px;
    letter-spacing: 0px;
    text-align: left;
    margin-top: 10px;
    margin-bottom: 20px;
}

/* ============================================================
   Catalyst Technologies（产品三.html，基准 1600px，最小兼容 1280px）
   ============================================================ */

/* 分类色带：全宽横铺 */
.cat-band {
    padding: 19px 0;
}

.cat-band-dark {
    background: linear-gradient(90deg, rgba(6, 60, 105, 1) 0%, rgba(10, 73, 125, 1) 100%);
    margin-top: 30px;
}

.cat-band-light {
    background: rgba(247, 250, 252, 1);
    background: linear-gradient(90deg, rgba(6, 60, 105, 1) 0%, rgba(10, 73, 125, 1) 100%);
}

/* 分类行：标题 + 列表 */
.cat-row {
    margin-bottom: 28px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.15);
    padding-bottom: 22px;
}

.cat-band-light .cat-row {
    border-bottom-color: 1px solid rgba(255, 255, 255, 0.15);
}

.cat-row:last-child {
    margin-bottom: 0;
    border-bottom: none;
    padding-bottom: 0;
}

.cat-row-title {
    display: inline-block;
    margin-bottom: 10px;
    color: rgba(55, 174, 226, 1);
    font-size: 20px;
    font-weight: 700;
    line-height: 24px;
    letter-spacing: 0px;
    text-align: left;
}

.cat-list {
    list-style: none;
    columns: 3;
    column-gap: 40px;
}

.cat-list li {
    position: relative;
    break-inside: avoid;
    padding-left: 18px;
    margin-bottom: 6px;
    color: rgba(74, 85, 101, 1);
    font-size: 18px;
    font-weight: 400;
    line-height: 24px;
    letter-spacing: 0px;
    text-align: left;
}

.cat-list li::before {
    content: '·';
    position: absolute;
    left: 0;
    top: 0;
    font-weight: 700;
    color: rgba(74, 85, 101, 1);
}

.cat-band-dark .cat-list li::before {
    color: rgba(255, 255, 255, 0.95);
}

.cat-list li a {
    color: rgba(255, 255, 255, 0.95);
    text-decoration: none;
    transition: color 0.3s ease, transform 0.3s ease;
    display: inline-flex;
    align-items: center;
    gap: 6px;
}

.cat-band-light .cat-list li a {
    color: rgba(74, 85, 101, 1);
    color: rgba(255, 255, 255, 0.95);
}

.cat-list li a:hover {
    color: #fff;
    transform: translateX(5px);
}

.cat-band-light .cat-list li a:hover {
    color: #0B4D83;
}

.cat-list li a::after {
    content: '>'; 
    font-size: 12px;
    opacity: 0.7;
}

/* Catalyst Portfolio 区块 */
.cat-block {
    margin: 60px 0 50px;
}

.cat-subtitle {
    display: inline-block;
    color: rgba(49, 64, 79, 1);
    font-size: 34px;
    font-weight: 700;
    line-height: 32px;
    letter-spacing: 0px;
    text-align: left;
}

.cat-sub-underline {
    width: 39px;
    height: 3px;
    background: #0B4D83;
    margin: 20px 0 22px;
    transform: scaleX(0);
    transform-origin: left;
    transition: transform 0.8s cubic-bezier(0.25, 0.46, 0.45, 0.94) 0.2s;
}

.cat-block.animated .cat-sub-underline,
.cat-photo-group.animated .cat-sub-underline {
    transform: scaleX(1);
}

.cat-block p {
    margin-bottom: 12px;
    color: rgba(74, 85, 101, 1);
    font-size: 18px;
    font-weight: 400;
    line-height: 32px;
    letter-spacing: 0px;
    text-align: left;
}

/* Portfolio 列表 */
.cat-portfolio-list {
    list-style: none;
    max-width: 1200px;
}

.cat-portfolio-list > li {
    position: relative;
    padding-left: 24px;
    margin-bottom: 10px;
    color: rgba(74, 85, 101, 1);
    font-size: 18px;
    font-weight: 400;
    line-height: 32px;
    letter-spacing: 0px;
    text-align: left;
}

.cat-portfolio-list > li::before {
    content: '•';
    position: absolute;
    left: 6px;
    top: 0;
    font-weight: 700;
    color: rgba(74, 85, 101, 1);
}

.cat-portfolio-list ul {
    list-style: none;
    margin: 8px 0 0 20px;
}

.cat-portfolio-list ul li {
    font-size: 15px;
    line-height: 26px;
    color: rgba(113, 128, 150, 1);
    margin-bottom: 6px;
}

/* 照片区域 */
.cat-photos {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 50px;
    margin-bottom: 60px;
}

.cat-photo-group {
    margin: 0;
}

.cat-photo-group img {
    display: block;
    width: 100%;
    height: 496px;
    object-fit: cover;
    border-radius: 4px;
    transition: transform 0.6s cubic-bezier(0.25, 0.46, 0.45, 0.94), box-shadow 0.3s ease;
}

.cat-photo-group img:hover {
    transform: scale(1.04);
    box-shadow: 0 8px 24px rgba(11, 77, 131, 0.15);
}

/* Laboratory 拼贴布局 */
.cat-lab-grid {
    display: flex;
    gap: 16px;
}

.cat-lab-main {
    display: block;
    width: 100%;
    height: 496px;
    object-fit: cover;
    border-radius: 4px;
    transition: transform 0.6s cubic-bezier(0.25, 0.46, 0.45, 0.94), box-shadow 0.3s ease;
}

.cat-lab-main:hover {
    transform: scale(1.04);
    box-shadow: 0 8px 24px rgba(11, 77, 131, 0.15);
}

/* Catalyst Technologies 1280 适配 */
@media (max-width: 1366px) {

    .cat-band {
        padding: 36px 0;
    }

    .cat-row {
        margin-bottom: 22px;
        padding-bottom: 18px;
    }

    .cat-row-title {
        font-size: 15px;
        line-height: 22px;
    }

    .cat-list {
        columns: 2;
        column-gap: 30px;
    }

    .cat-list li {
        font-size: 13px;
        line-height: 20px;
    }

    .cat-block {
        margin: 48px 0 40px;
    }

    .cat-subtitle {
        font-size: 22px;
    }

    .cat-block p,
    .cat-portfolio-list > li {
        font-size: 15px;
        line-height: 26px;
    }

    .cat-portfolio-list ul li {
        font-size: 14px;
        line-height: 24px;
    }

    .cat-photos {
        gap: 30px;
        margin-bottom: 48px;
    }

    .cat-photo-group img {
        height: 400px;
    }
}

/* ============================================================
   CNNM-01 Hydrocarbon Hydrogenation Catalyst（产品三详情.html）
   基准 1600px，最小兼容 1280px
   ============================================================ */
.cat-detail-page {
    background: #fff;
    padding: 0 0 80px;
}

.cat-detail-container {
    max-width: 1600px;
    margin: 0 auto;
    padding: 0 20px;
    box-sizing: border-box;
}

/* 标题区：全宽浅灰色带，横铺两边无留白 */
.cat-detail-header-band {
    background: rgba(243, 246, 248, 1);
    padding: 50px 0;
    margin-bottom: 60px;
}

/* 标题区：标题独立一行，下方文字+图片左右并排 */
.cat-detail-header {
    display: flex;
    flex-direction: column;
}

.cat-detail-title {
    margin-bottom: 0;
    color: rgba(49, 64, 79, 1);
    font-size: 34px;
    font-weight: 700;
    line-height: 32px;
    letter-spacing: 0px;
    text-align: left;
}

.cat-detail-underline {
    width: 39px;
    height: 3px;
    background: #0B4D83;
    margin: 20px 0 30px;
    transform: scaleX(0);
    transform-origin: left;
    transition: transform 0.8s cubic-bezier(0.25, 0.46, 0.45, 0.94) 0.2s;
}

.cat-detail-header.animated .cat-detail-underline {
    transform: scaleX(1);
}

/* 标题下方内容区：左文右图 */
.cat-detail-header-content {
    display: flex;
    align-items: center;
    gap: 60px;
}

.cat-detail-header-left {
    flex: 1;
}

.cat-detail-header-left p {
    margin-bottom: 12px;
    color: rgba(74, 85, 101, 1);
    font-size: 18px;
    font-weight: 400;
    line-height: 32px;
    letter-spacing: 0px;
    text-align: left;
}

.cat-detail-header-right {
    flex: 0 0 540px;
    width: 540px;
    height: 304px;
 
    display: flex;
    align-items: center;    overflow: hidden;
    justify-content: center;
}

.cat-detail-header-right img {
    max-width: 100%;
    height: 100%;
    width: 100%;
    object-fit: contain;
    transition: transform 0.6s cubic-bezier(0.25, 0.46, 0.45, 0.94), box-shadow 0.3s ease;
}

.cat-detail-header-right img:hover {
    transform: scale(1.05);
    box-shadow: 0 8px 24px rgba(11, 77, 131, 0.2);
}

/* 通用章节 */
.cat-detail-section {
    margin-bottom: 50px;
}

.cat-detail-section-last {
    margin-bottom: 0;
}

.cat-detail-heading {
    display: inline-block;
    color: rgba(49, 64, 79, 1);
    font-size: 22px;
    font-weight: 700;
    line-height: 32px;
    letter-spacing: 0px;
    text-align: left;
    margin-bottom: 20px;
}

.cat-detail-heading-line {
    width: 28px;
    height: 3px;
    background: #0B4D83;
    margin: 12px 0 22px;
    transform: scaleX(0);
    transform-origin: left;
    transition: transform 0.8s cubic-bezier(0.25, 0.46, 0.45, 0.94) 0.2s;
}

.cat-detail-section.animated .cat-detail-heading-line {
    transform: scaleX(1);
}

.cat-detail-section p {
    margin-bottom: 12px;
    color: rgba(74, 85, 101, 1);
    font-size: 18px;
    font-weight: 400;
    line-height: 32px;
    letter-spacing: 0px;
    text-align: left;
}

/* 圆点列表 */
.cat-detail-list {
    list-style: none;
    max-width: 1200px;
}

.cat-detail-list li {
    position: relative;
    padding-left: 0;
    margin-bottom: 10px;
    transition: color 0.3s ease, transform 0.3s ease;
    color: rgba(74, 85, 101, 1);
    font-size: 18px;
    font-weight: 400;
    line-height: 32px;
    letter-spacing: 0px;
    text-align: left;
}

.cat-detail-list li::before {
    /* content: '•'; */
    position: absolute;
    left: 6px;
    top: 0;
    font-weight: 700;
    color: rgba(74, 85, 101, 1);
}

.cat-detail-list li:hover {
    color: #0B4D83;
    transform: translateX(5px);
}

/* CNNM-01 详情页 1280 适配 */
@media (max-width: 1366px) {

    .cat-detail-page {
        padding: 0 0 64px;
    }

    .cat-detail-header-band {
        padding: 36px 0;
    }

    .cat-detail-title {
        font-size: 28px;
        line-height: 36px;
    }

    .cat-detail-underline {
        margin: 16px 0 24px;
    }

    .cat-detail-header-content {
        gap: 40px;
    }

    .cat-detail-header-left p,
    .cat-detail-section p,
    .cat-detail-list li {
        font-size: 15px;
        line-height: 26px;
    }

    .cat-detail-header-right {
        flex: 0 0 auto;
        width: 100%;
        min-height: 280px;
    }

    .cat-detail-header-right img {
        max-width: 90%;
        height: auto;
    }

    .cat-detail-section {
        margin-bottom: 40px;
    }

    .cat-detail-heading {
        font-size: 22px;
    }
}

/* ============================================================
   N-Formylmorpholine（产品四详情.html）
   基准 1600px，最小兼容 1280px
   ============================================================ */
.nfm-page {
    background: #fff;
    padding: 0 0 80px;
}

.nfm-container {
    max-width: 1600px;
    margin: 0 auto;
    padding: 0 20px;
    box-sizing: border-box;
}

/* 标题区：全宽浅灰色带，横铺两边无留白 */
.nfm-header-band {
    background: rgba(243, 246, 248, 1);
    padding: 50px 0;
    margin-bottom: 60px;
}

/* 标题区：标题独立一行，下方文字+图片左右并排 */
.nfm-header {
    display: flex;
    flex-direction: column;
}

.nfm-title {
    margin-bottom: 0;
    color: rgba(49, 64, 79, 1);
    font-size: 34px;
    font-weight: 700;
    line-height: 32px;
    letter-spacing: 0px;
    text-align: left;
}

.nfm-underline {
    width: 39px;
    height: 3px;
    background: #0B4D83;
    margin: 20px 0 30px;
    transform: scaleX(0);
    transform-origin: left;
    transition: transform 0.8s cubic-bezier(0.25, 0.46, 0.45, 0.94) 0.2s;
}

.nfm-header.animated .nfm-underline {
    transform: scaleX(1);
}

/* 标题下方内容区：左文右图 */
.nfm-header-content {
    display: flex;
    align-items: center;
    gap: 60px;
}

.nfm-header-left {
    flex: 1;
}

.nfm-header-left p {
    margin-bottom: 12px;
    color: rgba(74, 85, 101, 1);
    font-size: 18px;
    font-weight: 400;
    line-height: 32px;
    letter-spacing: 0px;
    text-align: left;
}

.nfm-header-right {
    flex: 0 0 540px;
    width: 540px;
    height: 304px;
    background: #fff;
    display: flex;
    align-items: center;
    justify-content: center;
}

.nfm-header-right img {
    max-width: 100%;
    height: auto;
    object-fit: contain;
    transition: transform 0.6s cubic-bezier(0.25, 0.46, 0.45, 0.94), box-shadow 0.3s ease;
}

.nfm-header-right img:hover {
    transform: scale(1.05);
    box-shadow: 0 8px 24px rgba(11, 77, 131, 0.2);
}

/* 通用章节 */
.nfm-section {
    margin-bottom: 50px;
}

.nfm-section-last {
    margin-bottom: 0;
}

.nfm-heading {
    display: inline-block;
    color: rgba(49, 64, 79, 1);
    font-size: 22px;
    font-weight: 700;
    line-height: 32px;
    letter-spacing: 0px;
    text-align: left;
    margin-bottom: 20px;
}

.nfm-section p {
    margin-bottom: 12px;
    color: rgba(74, 85, 101, 1);
    font-size: 18px;
    font-weight: 400;
    line-height: 32px;
    letter-spacing: 0px;
    text-align: left;
}

/* 圆点列表 */
.nfm-list {
    list-style: none;
    padding: 0;
    margin-top: 12px;
}

.nfm-list li {
    position: relative;
    padding-left: 24px;
    margin-bottom: 10px;
    color: rgba(74, 85, 101, 1);
    font-size: 18px;
    font-weight: 400;
    line-height: 32px;
    letter-spacing: 0px;
    text-align: left;
    transition: color 0.3s ease, transform 0.3s ease;
}

.nfm-list li::before {
    content: '·';
    position: absolute;
    left: 6px;
    top: 0;
    font-weight: 700;
    color: rgba(11, 77, 131, 1);
}

.nfm-list li:hover {
    color: rgba(11, 77, 131, 1);
    transform: translateX(4px);
}

/* 规格表格 */
.nfm-table-wrap {
    overflow-x: auto;
}

.nfm-table {
    width: 100%;
    border-collapse: collapse;
    border: 1px solid rgba(226, 233, 238, 1);
    background: #fff;
}

.nfm-table th,
.nfm-table td {
    padding: 14px 18px;
    border: 1px solid rgba(226, 233, 238, 1);
    color: rgba(74, 85, 101, 1);
    font-size: 18px;
    font-weight: 400;
    line-height: 32px;
    letter-spacing: 0px;
    text-align: left;
}

.nfm-table th {
    background: rgba(243, 246, 248, 1);
    color: rgba(74, 85, 101, 1);
    font-size: 18px;
    font-weight: 400;
    line-height: 32px;
    letter-spacing: 0px;
}

.nfm-table tbody tr {
    transition: background-color 0.3s ease;
}

.nfm-table tbody tr:hover {
    background: rgba(243, 246, 248, 0.5);
}

.nfm-table td:first-child {
    text-align: center;
    width: 60px;
}

@media (max-width: 1366px) {

    .nfm-page {
        padding: 0 0 64px;
    }

    .nfm-header-band {
        padding: 36px 0;
        margin-bottom: 48px;
    }

    .nfm-title {
        font-size: 28px;
        line-height: 36px;
    }

    .nfm-underline {
        margin: 16px 0 24px;
    }

    .nfm-header-content {
        gap: 40px;
    }

    .nfm-header-left p,
    .nfm-section p,
    .nfm-list li {
        font-size: 15px;
        line-height: 26px;
    }

    .nfm-header-right {
        flex: 0 0 auto;
        width: 100%;
        min-height: 280px;
    }

    .nfm-header-right img {
        max-width: 90%;
        height: auto;
    }

    .nfm-section {
        margin-bottom: 40px;
    }

    .nfm-heading {
        font-size: 20px;
    }

    .nfm-table th,
    .nfm-table td {
        padding: 10px 12px;
        font-size: 14px;
    }

    .nfm-headings1 {
        font-size: 16px;
        margin-bottom: 20px;
    }
}

/* NFM 页面标题样式 */
.nfm-headings1 {
    color: rgba(74, 85, 101, 1);
    font-size: 18px;
    font-weight: 400;
    line-height: 32px;
    letter-spacing: 0px;
    text-align: left;
    margin-bottom: 25px;
}

/* ============================================================
   Lightbox 图片放大展示（产品一详情、产品二详情）
   ============================================================ */
.lightbox-overlay {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.9);
    z-index: 9999;
    cursor: pointer;
    opacity: 0;
    transition: opacity 0.3s ease;
}

.lightbox-overlay.active {
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 1;
}

.lightbox-content {
    max-width: 90%;
    max-height: 90%;
    position: relative;
}

.lightbox-content img {
    max-width: 100%;
    max-height: 90vh;
    object-fit: contain;
    border-radius: 4px;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.5);
}

.lightbox-close {
    position: absolute;
    top: -40px;
    right: 0;
    width: 36px;
    height: 36px;
    background: rgba(255, 255, 255, 0.1);
    border: 2px solid rgba(255, 255, 255, 0.8);
    border-radius: 50%;
    color: #fff;
    font-size: 24px;
    line-height: 32px;
    text-align: center;
    cursor: pointer;
    transition: all 0.3s ease;
}

.lightbox-close:hover {
    background: rgba(255, 255, 255, 0.2);
    transform: rotate(90deg);
}

.lightbox-hint {
    position: absolute;
    bottom: -36px;
    left: 50%;
    transform: translateX(-50%);
    color: rgba(255, 255, 255, 0.7);
    font-size: 14px;
    white-space: nowrap;
    pointer-events: none;
}.who-card-ow {
    overflow: auto;
    height: 295px;
}.wwd-listfin {
    columns: 2!important;
    column-gap: 0!important;
}