:root {
    --color-ink: #132033;
    --color-muted: #5b6676;
    --color-line: #dce3eb;
    --color-soft: #f4f7fa;
    --color-white: #ffffff;
    --color-blue: #114f84;
    --color-blue-strong: #0a3760;
    --color-teal: #0f9b8e;
    --color-amber: #c98924;
    --shadow: 0 18px 45px rgba(16, 32, 52, 0.12);
    --radius: 8px;
    --container: 1180px;
}

* {
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    margin: 0;
    color: var(--color-ink);
    background: var(--color-white);
    font-family: Arial, Helvetica, sans-serif;
    font-size: 16px;
    line-height: 1.6;
}

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

a {
    color: inherit;
    text-decoration: none;
}

p {
    margin: 0 0 1rem;
    color: var(--color-muted);
}

h1,
h2,
h3 {
    margin: 0 0 1rem;
    line-height: 1.14;
    letter-spacing: 0;
}

h1 {
    font-size: clamp(2.35rem, 5vw, 4.8rem);
}

h2 {
    font-size: clamp(1.8rem, 3vw, 3rem);
}

h3 {
    font-size: 1.15rem;
}

.container {
    width: min(100% - 32px, var(--container));
    margin-inline: auto;
}

.skip-link {
    position: absolute;
    top: -48px;
    left: 16px;
    z-index: 1000;
    padding: 10px 14px;
    background: var(--color-white);
    color: var(--color-blue);
    border: 1px solid var(--color-line);
}

.skip-link:focus {
    top: 16px;
}

.screen-reader-text {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}

.site-header {
    position: sticky;
    top: 0;
    z-index: 50;
    background: rgba(255, 255, 255, 0.96);
    border-bottom: 1px solid rgba(220, 227, 235, 0.9);
    backdrop-filter: blur(12px);
}

.topbar {
    background: var(--color-blue-strong);
    color: rgba(255, 255, 255, 0.9);
    font-size: 0.83rem;
}

.topbar-inner {
    display: flex;
    justify-content: space-between;
    gap: 16px;
    padding: 8px 0;
}

.header-inner {
    display: grid;
    grid-template-columns: auto 1fr auto;
    align-items: center;
    gap: 22px;
    min-height: 74px;
}

.site-brand {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    min-width: 160px;
    font-weight: 800;
}

.brand-mark {
    display: inline-grid;
    place-items: center;
    width: 38px;
    height: 38px;
    color: var(--color-white);
    background: var(--color-blue);
    border-radius: 8px;
    font-weight: 800;
}

.brand-text {
    font-size: 1.08rem;
}

.primary-navigation {
    justify-self: end;
}

.primary-menu {
    display: flex;
    align-items: center;
    gap: 4px;
    margin: 0;
    padding: 0;
    list-style: none;
}

.primary-menu a {
    display: block;
    padding: 12px 10px;
    color: var(--color-ink);
    font-weight: 700;
    font-size: 0.94rem;
}

.primary-menu li {
    position: relative;
}

.primary-menu .sub-menu {
    position: absolute;
    top: 100%;
    left: 0;
    display: none;
    min-width: 220px;
    margin: 0;
    padding: 8px;
    list-style: none;
    background: var(--color-white);
    border: 1px solid var(--color-line);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
}

.primary-menu li:hover > .sub-menu,
.primary-menu li:focus-within > .sub-menu {
    display: block;
}

.primary-menu .sub-menu a {
    padding: 9px 10px;
    border-radius: 6px;
}

.primary-menu .sub-menu a:hover {
    background: var(--color-soft);
}

.header-actions {
    display: flex;
    align-items: center;
    gap: 10px;
    white-space: nowrap;
}

.language-switcher {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    padding: 8px 0;
    color: var(--color-muted);
    font-size: 0.88rem;
}

.header-whatsapp {
    color: var(--color-teal);
    font-weight: 800;
    font-size: 0.92rem;
}

.button,
.jyc-submit-button,
.product-search-form button {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 44px;
    padding: 11px 18px;
    border: 1px solid transparent;
    border-radius: 8px;
    font-weight: 800;
    line-height: 1.1;
    cursor: pointer;
}

.button-primary,
.header-quote,
.jyc-submit-button,
.product-search-form button {
    color: var(--color-white);
    background: var(--color-teal);
}

.button-primary:hover,
.header-quote:hover,
.jyc-submit-button:hover,
.product-search-form button:hover {
    background: #0b7f76;
}

.button-secondary {
    color: var(--color-white);
    border-color: rgba(255, 255, 255, 0.66);
    background: rgba(255, 255, 255, 0.12);
}

.text-link {
    color: var(--color-blue);
    font-weight: 800;
}

.text-link:hover {
    color: var(--color-teal);
}

.nav-toggle {
    display: none;
    width: 44px;
    height: 44px;
    padding: 10px;
    border: 1px solid var(--color-line);
    border-radius: 8px;
    background: var(--color-white);
}

.nav-toggle span:not(.screen-reader-text) {
    display: block;
    height: 2px;
    margin: 5px 0;
    background: var(--color-ink);
}

.hero-section {
    position: relative;
    min-height: 650px;
    display: grid;
    align-items: center;
    overflow: hidden;
    color: var(--color-white);
}

.hero-section::before {
    content: "";
    position: absolute;
    inset: 0;
    z-index: 1;
    background: rgba(6, 24, 44, 0.58);
}

.hero-media {
    position: absolute;
    inset: 0;
    background-image: url("../img/hero-chemical.jpg");
    background-size: cover;
    background-position: center right;
}

.hero-content {
    position: relative;
    z-index: 2;
    max-width: 780px;
    padding: 92px 0 120px;
}

.hero-kicker,
.section-kicker {
    display: inline-flex;
    align-items: center;
    margin-bottom: 14px;
    color: var(--color-teal);
    font-weight: 900;
    text-transform: uppercase;
    font-size: 0.78rem;
}

.hero-content .hero-kicker,
.hero-content p {
    color: rgba(255, 255, 255, 0.88);
}

.hero-content p {
    max-width: 680px;
    font-size: 1.08rem;
}

.hero-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    margin-top: 28px;
}

.quick-rfq-band {
    position: relative;
    z-index: 3;
    margin-top: -58px;
}

.quick-rfq-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 24px;
    padding: 28px;
    background: var(--color-white);
    border: 1px solid var(--color-line);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
}

.quick-rfq-inner span {
    display: block;
    margin-bottom: 6px;
    font-size: 1.2rem;
    font-weight: 900;
}

.quick-rfq-inner p {
    margin: 0;
}

.section {
    padding: 86px 0;
}

.muted-section {
    background: var(--color-soft);
}

.section-heading {
    max-width: 760px;
    margin-bottom: 34px;
}

.section-heading.compact {
    margin-bottom: 22px;
}

.product-search-form {
    display: grid;
    grid-template-columns: 1fr auto;
    gap: 10px;
    max-width: 720px;
    margin: 0 0 32px;
}

.product-search-form label {
    grid-column: 1 / -1;
    font-weight: 800;
}

input,
textarea,
select {
    width: 100%;
    min-height: 44px;
    padding: 11px 12px;
    color: var(--color-ink);
    background: var(--color-white);
    border: 1px solid var(--color-line);
    border-radius: 8px;
    font: inherit;
}

textarea {
    resize: vertical;
}

input:focus,
textarea:focus,
select:focus {
    outline: 2px solid rgba(15, 155, 142, 0.24);
    border-color: var(--color-teal);
}

.product-grid,
.post-grid,
.trust-grid,
.application-grid,
.document-grid {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 20px;
}

.product-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
}

.product-card,
.post-card,
.trust-grid article,
.application-grid article,
.document-card {
    background: var(--color-white);
    border: 1px solid var(--color-line);
    border-radius: var(--radius);
    overflow: hidden;
}

.product-card-body,
.post-card-body,
.trust-grid article,
.application-grid article,
.document-card {
    padding: 22px;
}

.product-card-image img,
.post-card-image img {
    width: 100%;
    aspect-ratio: 3 / 2;
    object-fit: cover;
}

.product-category {
    display: inline-block;
    margin-bottom: 10px;
    color: var(--color-amber);
    font-size: 0.78rem;
    font-weight: 900;
    text-transform: uppercase;
}

.mini-specs {
    display: grid;
    gap: 8px;
    margin: 0 0 12px;
}

.mini-specs div {
    display: grid;
    grid-template-columns: 70px 1fr;
    gap: 12px;
    font-size: 0.92rem;
}

.mini-specs dt {
    color: var(--color-muted);
}

.mini-specs dd {
    margin: 0;
    font-weight: 800;
}

.card-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 14px;
}

.two-column {
    display: grid;
    grid-template-columns: minmax(0, 0.92fr) minmax(0, 1.08fr);
    gap: 44px;
    align-items: start;
}

.feature-list {
    display: grid;
    gap: 14px;
}

.feature-list div {
    padding: 18px;
    background: var(--color-white);
    border-left: 4px solid var(--color-teal);
    border-radius: var(--radius);
}

.feature-list strong,
.feature-list span {
    display: block;
}

.feature-list span {
    margin-top: 5px;
    color: var(--color-muted);
}

.page-hero {
    padding: 96px 0 72px;
    color: var(--color-white);
    background: var(--color-blue-strong);
}

.compact-hero h1 {
    max-width: 920px;
}

.compact-hero p {
    max-width: 760px;
    color: rgba(255, 255, 255, 0.86);
}

.product-hero {
    padding: 72px 0;
}

.product-hero-grid {
    display: grid;
    grid-template-columns: minmax(0, 1fr) minmax(320px, 460px);
    gap: 42px;
    align-items: center;
}

.product-cn-name {
    font-weight: 800;
    color: rgba(255, 255, 255, 0.9);
}

.product-media {
    min-height: 320px;
    border: 1px solid rgba(255, 255, 255, 0.26);
    border-radius: var(--radius);
    overflow: hidden;
    background: rgba(255, 255, 255, 0.08);
}

.product-media img,
.product-placeholder {
    width: 100%;
    min-height: 320px;
    object-fit: cover;
}

.product-placeholder {
    display: grid;
    place-items: center;
    color: rgba(255, 255, 255, 0.82);
    font-weight: 800;
}

.product-content-grid {
    display: grid;
    grid-template-columns: minmax(0, 1fr) 360px;
    gap: 34px;
    align-items: start;
}

.product-main-content,
.product-sidebar > div,
.rfq-form-shell {
    background: var(--color-white);
    border: 1px solid var(--color-line);
    border-radius: var(--radius);
}

.product-main-content,
.product-sidebar > div {
    padding: 28px;
}

.product-sidebar {
    display: grid;
    gap: 16px;
    position: sticky;
    top: 112px;
}

.spec-table {
    margin: 0;
}

.spec-table div {
    display: grid;
    grid-template-columns: 145px 1fr;
    gap: 14px;
    padding: 11px 0;
    border-bottom: 1px solid var(--color-line);
}

.spec-table div:last-child {
    border-bottom: 0;
}

.spec-table dt {
    color: var(--color-muted);
    font-weight: 700;
}

.spec-table dd {
    margin: 0;
    font-weight: 800;
}

.document-links {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
}

.document-links a {
    display: inline-flex;
    padding: 9px 12px;
    color: var(--color-blue);
    background: var(--color-soft);
    border: 1px solid var(--color-line);
    border-radius: 8px;
    font-weight: 800;
}

.narrow-content {
    max-width: 860px;
}

.entry-content a {
    color: var(--color-blue);
    font-weight: 800;
}

.entry-content img {
    border-radius: var(--radius);
}

.featured-figure {
    margin: 0 0 28px;
}

.rfq-section {
    padding: 92px 0;
    background: var(--color-soft);
    scroll-margin-top: 110px;
}

.rfq-layout {
    display: grid;
    grid-template-columns: minmax(0, 0.8fr) minmax(0, 1.2fr);
    gap: 34px;
    align-items: start;
}

.rfq-copy h2 {
    max-width: 560px;
}

.check-list {
    display: grid;
    gap: 10px;
    margin: 24px 0 0;
    padding: 0;
    list-style: none;
}

.check-list li {
    padding-left: 18px;
    border-left: 3px solid var(--color-teal);
    font-weight: 800;
}

.rfq-form-shell {
    padding: 26px;
    box-shadow: var(--shadow);
}

.jyc-form-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 14px;
}

.jyc-rfq-form p {
    margin: 0 0 14px;
}

.jyc-rfq-form label {
    display: block;
    margin-bottom: 6px;
    color: var(--color-ink);
    font-weight: 800;
}

.jyc-hp-field {
    position: absolute;
    left: -9999px;
}

.jyc-privacy-consent label {
    display: flex;
    align-items: flex-start;
    gap: 10px;
    color: var(--color-muted);
    font-weight: 400;
}

.jyc-privacy-consent input {
    width: auto;
    min-height: auto;
    margin-top: 5px;
}

.jyc-form-actions {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 12px;
}

.jyc-form-actions span {
    color: var(--color-muted);
    font-size: 0.88rem;
}

.jyc-submit-button:disabled {
    cursor: wait;
    opacity: 0.68;
}

.jyc-form-notice {
    margin-bottom: 16px;
    padding: 12px 14px;
    border-radius: var(--radius);
    font-weight: 800;
}

.jyc-inline-result {
    display: none;
}

.jyc-inline-result.jyc-form-notice {
    display: block;
    margin: -4px 0 0;
    font-size: 0.92rem;
}

.jyc-form-success {
    color: #0a5d43;
    background: #e8f7f2;
    border: 1px solid #b9e7d7;
}

.jyc-form-error {
    color: #7a2418;
    background: #fff0ed;
    border: 1px solid #f0c4bc;
}

.site-footer {
    color: rgba(255, 255, 255, 0.82);
    background: #101a27;
}

.footer-grid {
    display: grid;
    grid-template-columns: 1.2fr 0.8fr 0.9fr 0.8fr;
    gap: 32px;
    padding: 58px 0 34px;
}

.footer-brand {
    margin-bottom: 14px;
}

.footer-brand .brand-mark {
    background: var(--color-teal);
}

.footer-brand .brand-text,
.site-footer h3 {
    color: var(--color-white);
}

.footer-menu {
    display: grid;
    gap: 8px;
    margin: 0;
    padding: 0;
    list-style: none;
}

.footer-menu a,
.footer-link {
    color: rgba(255, 255, 255, 0.82);
}

.footer-menu a:hover,
.footer-link:hover {
    color: var(--color-white);
}

.footer-bottom {
    display: flex;
    justify-content: space-between;
    gap: 16px;
    padding: 18px 0;
    border-top: 1px solid rgba(255, 255, 255, 0.14);
    font-size: 0.88rem;
}

.pagination {
    margin-top: 28px;
}

.nav-links {
    display: flex;
    gap: 8px;
}

.page-numbers {
    min-width: 38px;
    padding: 8px 12px;
    border: 1px solid var(--color-line);
    border-radius: 8px;
    text-align: center;
}

.page-numbers.current {
    color: var(--color-white);
    background: var(--color-blue);
    border-color: var(--color-blue);
}

@media (max-width: 1060px) {
    .header-inner {
        grid-template-columns: auto auto;
    }

    .nav-toggle {
        display: block;
        justify-self: end;
    }

    .primary-navigation,
    .header-actions {
        grid-column: 1 / -1;
        justify-self: stretch;
        display: none;
    }

    .site-header.nav-open .primary-navigation,
    .site-header.nav-open .header-actions {
        display: flex;
    }

    .site-header.nav-open .primary-navigation {
        border-top: 1px solid var(--color-line);
    }

    .primary-menu {
        width: 100%;
        flex-direction: column;
        align-items: stretch;
        padding: 12px 0;
    }

    .primary-menu .sub-menu {
        position: static;
        display: block;
        box-shadow: none;
        border: 0;
        padding: 0 0 0 16px;
    }

    .header-actions {
        flex-wrap: wrap;
        padding-bottom: 16px;
    }

    .product-content-grid,
    .rfq-layout,
    .product-hero-grid,
    .two-column {
        grid-template-columns: 1fr;
    }

    .product-sidebar {
        position: static;
    }
}

@media (max-width: 820px) {
    .topbar-inner,
    .quick-rfq-inner,
    .footer-bottom {
        flex-direction: column;
        align-items: flex-start;
    }

    .hero-section {
        min-height: 590px;
    }

    .hero-content {
        padding: 78px 0 116px;
    }

    .product-grid,
    .post-grid,
    .trust-grid,
    .application-grid,
    .document-grid,
    .footer-grid,
    .jyc-form-grid {
        grid-template-columns: 1fr;
    }

    .product-search-form {
        grid-template-columns: 1fr;
    }

    .section,
    .rfq-section {
        padding: 62px 0;
    }

    .page-hero {
        padding: 72px 0 52px;
    }
}

@media (max-width: 520px) {
    .container {
        width: min(100% - 24px, var(--container));
    }

    .hero-actions,
    .jyc-form-actions {
        align-items: stretch;
        flex-direction: column;
    }

    .button,
    .jyc-submit-button {
        width: 100%;
    }

    .quick-rfq-inner,
    .rfq-form-shell,
    .product-main-content,
    .product-sidebar > div {
        padding: 18px;
    }

    .spec-table div {
        grid-template-columns: 1fr;
        gap: 4px;
    }
}