:root {
    --et001-bg: #e7ebf0;
    --et001-text: #1f2933;
    --et001-primary: #253b58;
    --et001-primary-soft: #2f5f7a;
    --et001-accent: #3f7f73;
    --et001-cyan: #2f8d84;
    --et001-violet: #2e6b72;
    --et001-card-third: #2e6b72;
    --et001-menu-active-bg: #ffffff;
    --et001-menu-active-text: #253b58;
    --et001-menu-accent: #2f8d84;
    --et001-teal: #2ec8b2;
    --et001-teal-soft: #9ae9de;
    --et001-overlay-left: #253b58;
    --et001-mega-bg: #ffffff;
    --et001-mega-text: #22314e;
    --et001-mega-link: #22314e;
    --et001-mega-hover-bg: #e7ebf0;
    --et001-mega-hover-text: #253b58;
    --et001-mega-border: #d6dfec;
    --et001-menu-item-bg: #2f5f7a;
    --et001-menu-item-text: #ffffff;
    --et001-menu-item-border: #8ba7c0;
    --et001-contact-bg: var(--et001-card-third);
    --et001-contact-text: #ffffff;
    --et001-contact-border: rgba(255, 255, 255, 0.35);
    --et001-contact-hover-bg: #2f5f7a;
    --et001-contact-hover-text: #ecfffb;
    --et001-contact-hover-border: #2f8d84;
    --et001-search-bg: #ffffff;
    --et001-search-text: #111111;
    --et001-search-placeholder: #667085;
    --et001-search-border: #9fb4c8;
    --et001-search-focus-border: #2f8d84;
    --et001-search-button-bg: #1e6e9a;
    --et001-search-button-text: #ffffff;
    --et001-search-button-border: #1e6e9a;
    --et001-search-button-hover-bg: #2f5f7a;
    --et001-search-button-hover-text: #ffffff;
    --et001-search-button-hover-border: #2f8d84;
    --et001-footer-bg: #4a5563;
    --et001-footer-text: #eef2f7;
    --et001-footer-link: #ffffff;
    --et001-footer-link-hover: #9ae9de;
    --et001-home-item-bg: #2f5f7a;
    --et001-home-item-text: #ffffff;
    --et001-home-item-border: #8ba7c0;
    --et001-home-active-bg: #ffffff;
    --et001-home-active-text: #253b58;
    --et001-hamburger-bg: #2f5f7a;
    --et001-hamburger-text: #ffffff;
    --et001-hamburger-border: #8ba7c0;
    --et001-hamburger-hover-bg: #253b58;
    --et001-hero-max-h-desktop: 460px;
    --et001-hero-max-h-mobile: 340px;
    --et001-card-radius: 2px;
    --et001-wrap: 1180px;
}

* { box-sizing: border-box; }

html.et001-theme, body.et001-theme {
    margin: 0;
    background: var(--et001-bg);
    color: var(--et001-text);
    font-family: var(--et-font-family, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Arial, sans-serif);
}

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

.et001-container {
    width: min(var(--et001-wrap), calc(100% - 2rem));
    margin-inline: auto;
}

.et001-header {
    background: linear-gradient(
        130deg,
        var(--et001-primary) 0%,
        var(--et001-primary-soft) 52%,
        var(--et001-accent) 100%
    );
    color: #fff;
    padding: 0.9rem 0 0.7rem;
}

.et001-top {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 1rem;
}

.et001-top-tools {
    margin-left: auto;
    min-width: min(620px, 62vw);
}

.et001-search-form {
    display: flex;
    align-items: center;
    gap: 0.45rem;
    position: relative;
}

.et001-search-form input[type="search"] {
    width: 100%;
    min-width: 200px;
    border: 1px solid var(--et001-search-border, #9fb4c8);
    border-radius: 1px;
    background: var(--et001-search-bg, #ffffff);
    color: var(--et001-search-text, #111111);
    padding: 0.38rem 0.62rem;
    outline: none;
}

.et001-search-form input[type="search"]::placeholder {
    color: var(--et001-search-placeholder, #667085);
}

.et001-search-form input[type="search"]:focus {
    border-color: var(--et001-search-focus-border, var(--et001-menu-accent, var(--et001-cyan)));
}

.et001-search-form button {
    border: 1px solid var(--et001-search-button-border, var(--et001-contact-border, rgba(255, 255, 255, 0.35)));
    border-radius: 1px;
    background: var(--et001-search-button-bg, var(--et001-contact-bg, rgba(255, 255, 255, 0.08)));
    color: var(--et001-search-button-text, var(--et001-contact-text, #fff));
    padding: 0.36rem 0.72rem;
    font-weight: 600;
    cursor: pointer;
    transition: border-color 0.18s ease, color 0.18s ease, background-color 0.18s ease;
}

.et001-search-form button:hover {
    border-color: var(--et001-search-button-hover-border, var(--et001-contact-hover-border, var(--et001-menu-accent, var(--et001-cyan))));
    color: var(--et001-search-button-hover-text, var(--et001-contact-hover-text, #ecfffb));
    background: var(--et001-search-button-hover-bg, var(--et001-contact-hover-bg, var(--et001-primary-soft)));
}

.et001-search-results {
    position: absolute;
    z-index: 120;
    left: 0;
    right: 0;
    top: calc(100% + 0.25rem);
    border: 1px solid #c7d5e4;
    background: #ffffff;
    border-radius: 2px;
    box-shadow: 0 12px 24px rgba(22, 29, 37, 0.18);
    display: none;
    max-height: min(420px, 72vh);
    overflow-y: auto;
}

.et001-search-results.is-open {
    display: block;
}

.et001-search-hit {
    display: grid;
    grid-template-columns: 56px minmax(0, 1fr);
    gap: 0.55rem;
    align-items: start;
    padding: 0.45rem 0.55rem;
    border-top: 1px solid #e3ebf4;
    color: #20324f;
}

.et001-search-hit:first-child {
    border-top: 0;
}

.et001-search-hit:hover {
    background: #f2f8ff;
}

.et001-search-thumb {
    width: 56px;
    height: 42px;
    border: 1px solid #d5e1ee;
    border-radius: 2px;
    overflow: hidden;
    background: #f8fbff;
    display: flex;
    align-items: center;
    justify-content: center;
}

.et001-search-thumb img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
}

.et001-search-thumb--empty {
    font-size: 0.62rem;
    color: #7b8ea8;
}

.et001-search-copy {
    min-width: 0;
    display: grid;
    gap: 0.2rem;
}

.et001-search-copy strong {
    font-size: 0.86rem;
    color: #1b2f4f;
    line-height: 1.2;
}

.et001-search-copy span {
    font-size: 0.76rem;
    color: #5a6f8c;
    line-height: 1.3;
}

.et001-logo {
    display: inline-flex;
    flex-direction: column;
    gap: 0.2rem;
}

.et001-logo-kicker {
    display: inline-block;
    font-size: 0.78rem;
    text-transform: uppercase;
    letter-spacing: 0.12em;
    color: var(--et001-logo-kicker-color, currentColor);
    opacity: 0.8;
}

.et001-logo strong {
    font-size: clamp(1.25rem, 2.2vw, 2rem);
    line-height: 1.05;
}

.et001-logo-aquastop {
    gap: 0.3rem;
}

.et001-logo-image {
    max-height: 76px;
    width: auto;
    max-width: min(360px, 82vw);
    display: block;
    object-fit: contain;
    object-position: left center;
    flex-shrink: 0;
}

.et001-contact {
    border: 1px solid var(--et001-contact-border, rgba(255, 255, 255, 0.35));
    border-radius: 1px;
    background: var(--et001-contact-bg, rgba(255, 255, 255, 0.08));
    color: var(--et001-contact-text, #fff);
    padding: 0.35rem 0.75rem;
    font-weight: 600;
    transition: border-color 0.18s ease, color 0.18s ease, background-color 0.18s ease;
}

.et001-contact:hover {
    border-color: var(--et001-contact-hover-border, var(--et001-menu-accent, var(--et001-cyan)));
    color: var(--et001-contact-hover-text, #ecfffb);
    background: var(--et001-contact-hover-bg, var(--et001-primary-soft));
}

.et001-menu-row {
    margin-top: 0.7rem;
    display: flex;
    align-items: center;
    gap: 0.7rem;
}

.et001-contact-inline {
    margin-left: auto;
}

@media (min-width: 921px) {
    .et001-contact-top {
        display: none;
    }
}

.et001-hamburger {
    display: none;
    width: 100%;
    border: 1px solid var(--et001-hamburger-border, rgba(255, 255, 255, 0.25));
    border-radius: 1px;
    background: var(--et001-hamburger-bg, rgba(255, 255, 255, 0.08));
    color: var(--et001-hamburger-text, #fff);
    text-align: left;
    font-size: 0.95rem;
    font-weight: 700;
    padding: 0.45rem 0.65rem;
}

.et001-hamburger:hover,
.et001-hamburger:focus-visible {
    background: var(--et001-hamburger-hover-bg, var(--et001-hamburger-bg, rgba(255, 255, 255, 0.08)));
}

.et001-menu {
    display: flex;
    gap: 0.6rem;
    flex-wrap: wrap;
}

.et001-menu-item-wrap {
    position: relative;
}

@media (min-width: 921px) {
    .et001-menu-item-wrap::after {
        content: "";
        position: absolute;
        left: 0;
        right: 0;
        top: 100%;
        height: 0.45rem;
    }
}

.et001-menu-item {
    display: inline-block;
    background: var(--et001-menu-item-bg, rgba(255, 255, 255, 0.08));
    border: 1px solid var(--et001-menu-item-border, rgba(255, 255, 255, 0.2));
    border-radius: 1px;
    padding: 0.38rem 0.75rem;
    font-size: 0.9rem;
    color: var(--et001-menu-item-text, #fff);
}

.et001-menu-item[data-et001-menu-item="home"] {
    background: var(--et001-home-item-bg, var(--et001-menu-item-bg));
    color: var(--et001-home-item-text, var(--et001-menu-item-text));
    border-color: var(--et001-home-item-border, var(--et001-menu-item-border));
}

.et001-menu-item-wrap.is-active > .et001-menu-item,
.et001-menu-item:hover,
.et001-menu-item.is-active {
    background: var(--et001-menu-active-bg, var(--et001-bg));
    color: var(--et001-menu-active-text, var(--et001-primary));
    border-color: var(--et001-menu-accent, var(--et001-cyan));
}

.et001-menu-item-wrap.is-active > .et001-menu-item[data-et001-menu-item="home"],
.et001-menu-item[data-et001-menu-item="home"].is-active {
    background: var(--et001-home-active-bg, var(--et001-menu-active-bg));
    color: var(--et001-home-active-text, var(--et001-menu-active-text));
}

.et001-dropdown {
    position: absolute;
    top: 100%;
    left: 0;
    min-width: 220px;
    background: var(--et001-menu-item-bg, #2f5f7a);
    border-radius: 1px;
    box-shadow: 0 10px 24px rgba(25, 34, 44, 0.18);
    padding: 0.45rem;
    display: none;
    z-index: 30;
    border: 1px solid var(--et001-menu-item-border, #8ba7c0);
    color: var(--et001-menu-item-text, #f4faff);
}

.et001-menu-item-wrap.is-open > .et001-dropdown {
    display: block;
}

.et001-dropdown-item {
    position: relative;
}

.et001-dropdown-link {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 0.75rem;
    padding: 0.45rem 0.55rem;
    border-radius: 1px;
    color: var(--et001-menu-item-text, #f4faff);
    font-size: 0.9rem;
}

.et001-submenu-arrow {
    flex: 0 0 auto;
    color: currentColor;
    font-size: 1.85rem;
    font-weight: 700;
    line-height: 1;
    margin-left: 0.35rem;
    opacity: 0.92;
}

.et001-dropdown-link:hover,
.et001-dropdown-item.is-open > .et001-dropdown-link {
    background: rgba(255, 255, 255, 0.1);
    color: inherit;
}

.et001-submenu {
    position: absolute;
    top: -0.45rem;
    left: calc(100% - 0.08rem);
    min-width: 220px;
    background: var(--et001-menu-item-bg, #2f5f7a);
    border-radius: 1px;
    box-shadow: 0 10px 24px rgba(25, 34, 44, 0.18);
    padding: 0.45rem;
    display: none;
    z-index: 31;
    border: 1px solid var(--et001-menu-item-border, #8ba7c0);
    color: var(--et001-menu-item-text, #f4faff);
}

.et001-dropdown-item.is-open > .et001-submenu {
    display: block;
}

.et001-main {
    padding-bottom: 1.5rem;
}

.et001-hero {
    position: relative;
    height: clamp(260px, 42vw, var(--et001-hero-max-h-desktop, 460px));
    max-height: var(--et001-hero-max-h-desktop, 460px);
    overflow: hidden;
}

.et001-hero img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: center center;
    display: block;
}

.et001-hero-overlay {
    position: absolute;
    left: 50%;
    top: 50%;
    transform: translate(-50%, -50%);
    width: min(760px, calc(100% - 2rem));
    background: linear-gradient(130deg, var(--et001-overlay-left, var(--et001-primary)), var(--et001-overlay, var(--et001-primary-soft)));
    color: #fff;
    border-radius: var(--et001-card-radius);
    padding: 1rem 1.1rem;
    box-shadow: 0 14px 28px rgba(22, 29, 37, 0.22);
}

.et001-kicker {
    margin: 0;
    font-size: 0.76rem;
    text-transform: uppercase;
    letter-spacing: 0.12em;
    opacity: 0.85;
}

.et001-hero-overlay h1 {
    margin: 0.35rem 0;
    font-size: clamp(1.3rem, 2.55vw, 2.05rem);
    line-height: 1.05;
}

.et001-lead {
    margin: 0;
    font-size: 1.02rem;
    opacity: 0.95;
}

.et001-hero-links {
    margin-top: 0.65rem;
    display: flex;
    flex-wrap: wrap;
    gap: 0.45rem;
}

.et001-hero-links a {
    background: rgba(255, 255, 255, 0.14);
    border: 1px solid rgba(255, 255, 255, 0.3);
    color: #fff;
    border-radius: 1px;
    padding: 0.3rem 0.58rem;
    font-size: 0.88rem;
    transition: background-color 0.18s ease, border-color 0.18s ease, color 0.18s ease;
}

.et001-hero-links a:hover {
    background: var(--et001-menu-accent, var(--et001-cyan));
    border-color: var(--et001-menu-accent, var(--et001-cyan));
    color: #f1fffc;
}

.et001-card-grid {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 0.75rem;
    margin-top: 0.8rem;
}

.et001-card {
    border-radius: var(--et001-card-radius);
    color: #fff;
    padding: 1rem;
}

.et001-card h3 {
    margin: 0;
    font-size: clamp(1.12rem, 1.65vw, 1.32rem);
}

.et001-card p {
    margin: 0.55rem 0 0;
    font-size: 0.98rem;
    line-height: 1.35;
}

.et001-card.is-cyan { background: var(--et001-cyan); }
.et001-card.is-steel { background: var(--et001-accent); }
.et001-card.is-violet { background: var(--et001-card-third, var(--et001-violet)); }

.et001-recent {
    background: #fff;
    border: 1px solid #d6dfec;
    border-radius: 2px;
    margin-top: 0.8rem;
    padding: 0.8rem;
}

.et001-recent header {
    display: flex;
    justify-content: space-between;
    align-items: baseline;
    gap: 1rem;
}

.et001-recent header h2 {
    margin: 0;
    font-size: 1.52rem;
}

.et001-recent header span {
    color: #7184a1;
    font-size: 0.9rem;
}

.et001-list {
    display: grid;
    gap: 0.45rem;
    margin-top: 0.55rem;
}

.et001-list-item {
    border: 1px solid #d6dfec;
    border-radius: 2px;
    background: #f8fbff;
    padding: 0.65rem 0.75rem;
    color: #20324f;
}

.et001-list-item-inner {
    display: grid;
    grid-template-columns: 88px minmax(0, 1fr);
    align-items: start;
    gap: 0.65rem;
}

.et001-list-thumb-wrap {
    width: 88px;
    height: 66px;
    border: 1px solid #d0dceb;
    border-radius: 2px;
    overflow: hidden;
    background: #eef4fb;
    display: flex;
    align-items: center;
    justify-content: center;
}

.et001-list-thumb {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
}

.et001-list-thumb-empty {
    font-size: 0.7rem;
    color: #7689a4;
}

.et001-list-copy {
    min-width: 0;
}

.et001-list-item h4 {
    margin: 0;
    font-size: 1.06rem;
}

.et001-list-item p {
    margin: 0.35rem 0 0;
    color: #4a5f7f;
}

.et001-list-item small {
    display: block;
    margin-top: 0.3rem;
    color: #7c8ea9;
}

.et001-article {
    margin-top: 0.9rem;
    background: #fff;
    border: none;
    border-radius: 2px;
    padding: 1rem;
}

.et001-article h1 {
    margin: 0.35rem 0;
    font-size: clamp(1.7rem, 3.2vw, 2.9rem);
}

.et001-article-grid {
    margin-top: 0.8rem;
    display: grid;
    grid-template-columns: 1.2fr 1fr;
    gap: 0.85rem;
}

.et001-article-text p {
    line-height: 1.65;
}

.et001-html h1,
.et001-html h2,
.et001-html h3,
.et001-html h4,
.et001-html h5,
.et001-html h6 {
    margin: 1.15rem 0 0.55rem;
    line-height: 1.22;
    letter-spacing: -0.01em;
    color: #102a5c;
}

.et001-html h1 {
    font-size: clamp(1.55rem, 2.2vw, 2rem);
    font-weight: 750;
}

.et001-html h2 {
    font-size: clamp(1.35rem, 1.85vw, 1.7rem);
    font-weight: 740;
}

.et001-html h3 {
    font-size: clamp(1.18rem, 1.45vw, 1.4rem);
    font-weight: 720;
}

.et001-html h4,
.et001-html h5,
.et001-html h6 {
    font-size: 1.08rem;
    font-weight: 700;
}

.et001-article-images {
    display: grid;
    gap: 0.6rem;
}

.et001-article-images figure {
    margin: 0;
}

.et001-article-images img {
    width: 100%;
    display: block;
    border-radius: 2px;
}

.et001-back {
    display: inline-block;
    margin-top: 0.8rem;
    color: #0f4b95;
    font-weight: 600;
}

.et001-footer {
    margin-top: 1rem;
    background: var(--et001-footer-bg, #4a5563);
    color: var(--et001-footer-text, #eef2f7);
    padding: 1.1rem 0 1.3rem;
    text-align: center;
}

.et001-footer p {
    margin: 0.25rem 0;
}

.et001-footer a {
    color: var(--et001-footer-link, #fff);
}

.et001-footer a:hover {
    color: var(--et001-footer-link-hover, var(--et001-teal-soft));
}

.et001-footer span {
    margin: 0 0.4rem;
    opacity: 0.6;
}

@media (max-width: 920px) {
    .et001-menu-row {
        flex-direction: column;
        align-items: stretch;
        gap: 0.35rem;
    }

    .et001-top-tools {
        min-width: 0;
        width: 100%;
    }

    .et001-search-form {
        width: 100%;
    }

    .et001-search-results {
        left: 0;
        right: 0;
    }

    .et001-contact-inline {
        display: none;
    }

    .et001-hamburger {
        display: block;
    }

    .et001-card-grid {
        grid-template-columns: 1fr;
    }

    .et001-article-grid {
        grid-template-columns: 1fr;
    }

    .et001-list-item-inner {
        grid-template-columns: 1fr;
    }

    .et001-list-thumb-wrap {
        width: 100%;
        height: 128px;
    }

    .et001-hero,
    .et001-hero img {
        height: clamp(180px, 52vw, var(--et001-hero-max-h-mobile, 340px));
        max-height: var(--et001-hero-max-h-mobile, 340px);
    }

    .et001-menu {
        display: none;
        flex-direction: column;
        gap: 0;
        margin-top: 0.35rem;
        width: 100%;
    }

    .et001-menu.is-open {
        display: flex;
    }

    .et001-menu-item-wrap {
        width: 100%;
    }

    .et001-menu-item {
        display: block;
        width: 100%;
        border-radius: 1px;
        border-bottom: 1px solid rgba(255, 255, 255, 0.16);
    }

    .et001-menu-item-wrap:hover .et001-dropdown {
        display: none;
    }

    .et001-menu-item-wrap.is-open .et001-dropdown {
        display: block;
    }

    .et001-dropdown {
        position: static;
        display: none;
        box-shadow: none;
        border-radius: 1px;
        margin-top: 0;
        background: rgba(255, 255, 255, 0.97);
        border-top: 0;
        width: 100%;
    }

    .et001-menu-item-wrap.is-open .et001-dropdown {
        background: var(--et001-menu-item-bg, #2f5f7a);
        border-color: var(--et001-menu-item-border, #8ba7c0);
    }

    .et001-menu-item-wrap.is-open .et001-dropdown a {
        color: var(--et001-menu-item-text, #ffffff);
        border-top: 1px solid rgba(255, 255, 255, 0.14);
    }

    .et001-menu-item-wrap.is-open .et001-dropdown a:hover {
        background: var(--et001-menu-active-bg, #ffffff);
        color: var(--et001-menu-active-text, #253b58);
    }
}

@media (max-width: 640px) {
    .et001-container {
        width: calc(100% - 1rem);
    }

    .et001-top {
        flex-direction: column;
        align-items: stretch;
        justify-content: flex-start;
        flex-wrap: nowrap;
        gap: 0.55rem;
    }

    .et001-top-tools {
        width: 100%;
        min-width: 0;
    }

    .et001-search-form {
        gap: 0.35rem;
    }

    .et001-search-form input[type="search"] {
        min-width: 0;
    }

    .et001-logo-image {
        max-height: 54px;
        max-width: min(210px, 58vw);
    }

    .et001-menu-item {
        font-size: 0.84rem;
        padding: 0.35rem 0.6rem;
    }

    .et001-hero-overlay {
        width: calc(100% - 1rem);
        padding: 0.85rem;
    }
}