:root {
    --color-technical-white: #F4F7FB;
    --color-surface-container: #152030;
    --color-surface-container-high: #202a3b;
    --color-surface-container-highest: #2b3547;
    --color-primary-container: #002c5f;
    --color-secondary-container: #ce0019;
    --color-secondary: #ffb4ac;
    --color-cad-grey: #A0AEC0;
    --color-white: #ffffff;
    --max-width: 1320px;
    --spacing-gutter: 24px;
    --spacing-margin-desktop: 64px;
    --spacing-margin-mobile: 16px;
    --spacing-section-gap: 120px;
}

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

html,
body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
}

button {
    border: none;
    cursor: pointer;
    font-family: inherit;
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 16px 32px;
    transition: background-color 0.3s;
    font-size: 12px;
    font-weight: 600;
    text-transform: uppercase;
}

.btn-primary {
    background-color: var(--color-secondary-container);
    color: var(--color-technical-white);
    box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.2);
}

.btn-primary:hover {
    background-color: var(--color-secondary);
}

.btn-secondary {
    background-color: var(--color-white);
    color: var(--color-primary-container);
    border: 1px solid #c4c6d1;
}

.btn-secondary:hover {
    background-color: rgba(160, 174, 192, 0.1);
}

.uk-navbar-container:not(.uk-navbar-transparent) {
    background-color: transparent;
}

.uk-navbar-right {
    align-items: center;
}

#header {
    background-color: #f8f8f8;
    border-bottom: 1px solid rgb(0 0 0 / 10%);
    position: sticky;
    top: 0;
    left: 0;
    right: 0;
    z-index: 100;
}

.container {
    width: 100%;
    max-width: var(--max-width);
    margin-left:auto;
    margin-right:auto;
    padding-left:var(--spacing-margin-mobile);
    padding-right:var(--spacing-margin-mobile);
}

.text-secondary { color: var(--color-secondary-container);list-style-type: none; }
a:hover { color: var(--color-secondary-container); }

.uk-navbar-nav>li.uk-active>a {font-weight:700;font-size:clamp(18px, 5vw, 26px);}
.uk-navbar-nav>li>a {font-size: 16px;font-weight:500;}
.uk-navbar-nav>li:hover>a, .uk-navbar-nav>li>a[aria-expanded=true] {color:black;}
.uk-navbar-nav .current-menu-item a {color:black;}

/* main */

.hero {
    position: relative;
    min-height: 50vh;
    display: flex;
    align-items: center;
    border-bottom: 1px solid rgba(160, 174, 192, 0.3);
}

.hero-bg {
    position: absolute;
    inset: 0;
    z-index: 0;
    background-image: url('./assets/images/hero-banner.webp');
    background-size: cover;
    background-position: center;
}

.hero-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(to right, var(--color-technical-white) 0%, rgba(244, 247, 251, 0.9) 50%, transparent 100%);
}

.hero-content {
    position: relative;
    z-index: 10;
    display: flex;
    flex-direction: column;
    gap: 24px;
    padding-top: 64px;
    padding-bottom: 64px;
}

.status-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 4px 12px;
    background: var(--color-white);
    border: 1px solid rgba(160, 174, 192, 0.3);
    width: max-content;
    box-shadow: 0 1px 2px rgba(0, 0, 0, 0.05);
    margin: 0;
}

.status-dot {
    width: 8px;
    height: 8px;
    background: var(--color-secondary-container);
    border-radius: 50%;
    animation: pulse 2s infinite;
}

.hero-title {
    font-size: 48px;
    line-height: 1.1;
    letter-spacing: -0.02em;
    text-transform: uppercase;
    font-weight: 700;
    margin: 0;
}

.hero-desc {
    font-size: 18px;
    max-width: 600px;
    border-left: 2px solid var(--color-secondary-container);
    padding-left: 16px;
    margin: 0;
}

.hero-actions {
    display: flex;
    flex-direction: column;
    gap: 16px;
    margin: 0;
}

.hero-coords {
    display: none;
    position: absolute;
    bottom: 0;
    right: 0;
    padding: 32px;
    background: rgba(255, 255, 255, 0.8);
    backdrop-filter: blur(4px);
    border-left: 1px solid rgba(160, 174, 192, 0.3);
    border-top: 1px solid rgba(160, 174, 192, 0.3);
    flex-direction: column;
    gap: 8px;
}

/* Sections */
.section-padding {
    padding-top: var(--spacing-section-gap);
    padding-bottom:var(--spacing-section-gap);
}

.section-padding-2 {
    padding-top: var(--spacing-gutter);
    padding-bottom: var(--spacing-gutter);
}

.section-desc.shop-hero-section {
    max-width: var(--max-width);
    width: 100%;
}

.section-header {
    display: flex;
    flex-direction: column;
    gap: 32px;
    margin-bottom: 22px;
    align-items: flex-start;
}

.section-title {
    font-size: 32px;
    margin-bottom: 8px;
    font-weight: 700;
    text-transform: uppercase;
}

.section-desc {
    max-width: 600px;
}

.view-all-link {
    display: flex;
    align-items: center;
    gap: 4px;
    text-decoration: none;
}

.view-all-link:hover {
    text-decoration: underline;
    text-underline-offset: 4px;
}

/* Grid System */
.grid-3 {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--spacing-gutter);
}

/* Cards */
.card {
    background: var(--color-white);
    display: flex;
    flex-direction: column;
    height: 100%;
    overflow: hidden;
    border: 1px solid #f1f1f1;
}

.card-image-wrap {
    position: relative;
    width: 100%;
    aspect-ratio: 1/1;
    overflow: hidden;
    background: var(--color-technical-white);
}

.card-image {
    width: 100%;
    height: 100%;
    object-fit: cover;
    opacity: 0.8;
    transition: opacity 0.5s, transform 0.5s;
}

.card:hover .card-image {
    opacity: 1;
    transform: scale(1.05);
}

.card-overlay {
    position: absolute;
    inset: 0;
    opacity: 0.2;
    mix-blend-mode: overlay;
}

.card-body {
    padding: 24px;
    display: flex;
    flex-direction: column;
    flex-grow: 1;
}

.card-title {
    font-size: 32px;
    margin-bottom: 8px;
    text-transform: none;
}

.card-text {
    margin:0;
}

.card-meta {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 8px;
    border-top: 1px solid rgba(160, 174, 192, 0.3);
    padding-top: 16px;
    margin-top: auto;
}

.meta-item {
    display: flex;
    flex-direction: column;
}

/* Metrics Section */
.metrics-section {
    border-top: 1px solid rgba(160, 174, 192, 0.3);
    border-bottom: 1px solid rgba(160, 174, 192, 0.3);
    background: var(--color-technical-white);
    position: relative;
}

.metrics-grid {
    position: relative;
    z-index: 10;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 32px;
    padding: 64px var(--spacing-margin-mobile);
}

.metric-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
}

.metric-value {
    font-size: clamp(18px, 5vw, 24px);
    line-height: 1;
    margin-bottom: 8px;
    margin-top: 0;
}

/* Bento Grid */
.bento-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--spacing-gutter);
    height: auto;
}

.bento-main {
    position: relative;
    background: var(--color-surface-container);
    overflow: hidden;
    min-height: 400px;
}

.bento-main-img {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    opacity: 0.8;
    transition: all 0.7s;
}

.bento-main:hover .bento-main-img {
    opacity: 1;
    transform: scale(1.05);
}

.bento-gradient {
    position: absolute;
    inset: 0;
    background: linear-gradient(to top, var(--color-technical-white) 0%, rgba(244, 247, 251, 0.5) 50%, transparent 100%);
}

.bento-content {
    position: absolute;
    bottom: 0;
    left: 0;
    padding: 32px;
    width: 100%;
    display: flex;
    justify-content: space-between;
    align-items: flex-end;
}

.bento-title {
    font-size: 32px;
    line-height: 1;
    margin-bottom: 8px;
}

.bento-desc {
    display: none;
    max-width: 500px;
    color: var(--color-surface-container-highest);
}

.bento-icon-btn {
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.bento-sub-grid {
    display: grid;
    grid-template-rows: 1fr 1fr;
    gap: var(--spacing-gutter);
}

.bento-sub {
    position: relative;
    background: var(--color-technical-white);
    overflow: hidden;
    min-height: 250px;
}

.bento-sub-bg {
    position: absolute;
    inset: 0;
    background-size: cover;
    background-position: center;
    opacity: 0.4;
    transition: all 0.7s;
}

.bento-sub:hover .bento-sub-bg {
    opacity: 0.6;
    transform: scale(1.05);
}

.bento-sub-content {
    position: absolute;
    bottom: 0;
    left: 0;
    padding: 24px;
    width: 100%;
}

/* Footer */
.footer {
    background: var(--color-white);
    border-top: 1px solid rgba(160, 174, 192, 0.3);
    box-shadow: 0 -1px 3px rgba(0, 0, 0, 0.05);
}

.footer-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 32px;
    padding: var(--spacing-gutter) var(--spacing-gutter);
}

.footer-col {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.footer-logo {
    display: flex;
    align-items: center;
    gap: 12px;
}

.footer-desc {
    max-width: 320px;
}

.footer-link {
    width: max-content;
    transition: color 0.3s;
    color: black;
}

.footer-link:hover {
    color: var(--color-secondary-container);
    text-decoration: underline;
    text-underline-offset: 4px;
    text-decoration-color: var(--color-secondary-container);
}

/* Keyframes */
@keyframes pulse {

    0%,
    100% {
        opacity: 1;
    }

    50% {
        opacity: .5;
    }
}

/* --- 5. 媒体查询 (响应式) --- */
@media (min-width: 992px) {
    .container {
        padding-left:var(--spacing-margin-desktop);
        padding-right:var(--spacing-margin-desktop);
    }

    .nav-links {
        display: flex;
    }

    .nav-quote-btn {
        display: flex;
    }

    .menu-toggle {
        display: none;
    }

    .hero-actions {
        flex-direction: row;
    }

    .hero-coords {
        display: flex;
    }

    .section-header {
        flex-direction: row;
        justify-content: space-between;
        align-items: center;
    }

    .grid-3 {
        grid-template-columns: repeat(3, 1fr);
    }

    .metrics-grid {
        grid-template-columns: repeat(4, 1fr);
        padding: 64px var(--spacing-margin-desktop);
    }

    .metric-item {
        text-align: left;
    }

    .bento-grid {
        grid-template-columns: repeat(12, 1fr);
        height: 600px;
    }

    .bento-main {
        grid-column: span 8;
    }

    .bento-sub-grid {
        grid-column: span 4;
    }

    .bento-title {
        font-size: 48px;
    }

    .bento-desc {
        display: block;
    }

    .footer-grid {
        grid-template-columns: repeat(12, 1fr);
        gap: var(--spacing-gutter);
    }

    .footer-col-1 {
        grid-column: span 4;
    }

    .footer-col-2 {
        grid-column: 7 / span 2;
    }

    .footer-col-3 {
        grid-column: span 2;
    }

    .footer-col-4 {
        grid-column: span 2;
    }
}