/* 锐东科技官网 - 共享样式 */
:root {
    --color-primary: #0ea5e9;
    --color-primary-dark: #0284c7;
    --color-accent: #06b6d4;
    --color-dark: #0f172a;
    --color-dark-light: #1e293b;
    --color-text: #334155;
    --color-text-light: #64748b;
    --color-bg: #f8fafc;
    --color-white: #ffffff;
    --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.08);
    --shadow-md: 0 4px 20px rgba(0, 0, 0, 0.08);
    --shadow-lg: 0 10px 40px rgba(0, 0, 0, 0.12);
    --radius: 12px;
    --radius-lg: 16px;
}

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

body {
    font-family: 'Noto Sans SC', -apple-system, BlinkMacSystemFont, sans-serif;
    scroll-behavior: smooth;
    background: var(--color-bg);
    color: var(--color-text);
    line-height: 1.7;
}

/* Navigation */
.site-nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 100;
    background: rgba(255, 255, 255, 0.92);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid rgba(0, 0, 0, 0.06);
    padding: 0 1.5rem;
}

.site-nav__inner {
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 64px;
}

.site-nav__logo {
    font-size: 1.35rem;
    font-weight: 700;
    color: var(--color-dark);
    text-decoration: none;
    letter-spacing: 0.02em;
}

.site-nav__logo span {
    color: #dc2626;
}

.site-nav__links {
    display: flex;
    gap: 2rem;
    list-style: none;
}

.site-nav__link {
    color: var(--color-text);
    text-decoration: none;
    font-weight: 500;
    font-size: 0.95rem;
    padding: 0.25rem 0;
    position: relative;
    transition: color 0.25s ease;
}

.site-nav__link:hover,
.site-nav__link--active {
    color: var(--color-accent);
}

.site-nav__link--active::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 0;
    right: 0;
    height: 2px;
    background: var(--color-accent);
    border-radius: 1px;
}

/* Hero Section */
.hero {
    padding: 120px 1.5rem 60px;
    background: linear-gradient(135deg, var(--color-dark) 0%, var(--color-dark-light) 50%, #0c4a6e 100%);
    color: var(--color-white);
    text-align: center;
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    inset: 0;
    background:
        radial-gradient(circle at 20% 80%, rgba(6, 182, 212, 0.15) 0%, transparent 50%),
        radial-gradient(circle at 80% 20%, rgba(14, 165, 233, 0.12) 0%, transparent 50%);
    pointer-events: none;
}

.hero__inner {
    max-width: 900px;
    margin: 0 auto;
    position: relative;
    z-index: 1;
}

.hero__badge {
    display: inline-block;
    padding: 0.35rem 1rem;
    background: rgba(6, 182, 212, 0.15);
    border: 1px solid rgba(6, 182, 212, 0.3);
    border-radius: 999px;
    font-size: 0.85rem;
    color: var(--color-accent);
    margin-bottom: 1.5rem;
    letter-spacing: 0.05em;
}

.hero__title {
    font-size: clamp(2rem, 5vw, 3rem);
    font-weight: 700;
    line-height: 1.3;
    margin-bottom: 1rem;
}

.hero__title .highlight {
    color: #f87171;
}

.hero__subtitle {
    font-size: clamp(1rem, 2.5vw, 1.25rem);
    color: rgba(255, 255, 255, 0.75);
    margin-bottom: 0.75rem;
}

.hero__desc {
    font-size: clamp(1.1rem, 2vw, 1.35rem);
    color: rgba(255, 255, 255, 0.9);
    max-width: 700px;
    margin: 0 auto;
    line-height: 1.8;
}

/* Main Content */
.main-content {
    max-width: 1100px;
    margin: 0 auto;
    padding: 3rem 1.5rem 4rem;
}

.section-title {
    text-align: center;
    font-size: 1.75rem;
    font-weight: 700;
    color: var(--color-dark);
    margin-bottom: 0.5rem;
}

.section-subtitle {
    text-align: center;
    color: var(--color-text-light);
    margin-bottom: 2.5rem;
    font-size: 1rem;
}

/* Cards */
.card {
    background: var(--color-white);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
    border: 1px solid rgba(0, 0, 0, 0.04);
    overflow: hidden;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
}

.card__body {
    padding: 2rem;
}

.card__image {
    width: 100%;
    height: auto;
    display: block;
}

/* Feature Grid */
.feature-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1.5rem;
    margin-bottom: 3rem;
}

.feature-card {
    background: var(--color-white);
    border-radius: var(--radius-lg);
    padding: 2rem 1.5rem;
    text-align: center;
    border: 1px solid rgba(0, 0, 0, 0.05);
    box-shadow: var(--shadow-sm);
    transition: transform 0.3s ease, box-shadow 0.3s ease, border-color 0.3s ease;
}

.feature-card:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow-lg);
    border-color: rgba(6, 182, 212, 0.2);
}

.feature-card__icon {
    width: 56px;
    height: 56px;
    margin: 0 auto 1.25rem;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, #ecfeff 0%, #e0f2fe 100%);
    border-radius: 14px;
    color: var(--color-primary-dark);
}

.feature-card__icon svg {
    width: 28px;
    height: 28px;
}

.feature-card__title {
    font-size: 1.15rem;
    font-weight: 700;
    color: var(--color-dark);
    margin-bottom: 0.75rem;
}

.feature-card__desc {
    font-size: 0.9rem;
    color: var(--color-text-light);
    line-height: 1.75;
    text-align: left;
}

/* Product Showcase */
.product-showcase {
    margin-bottom: 3rem;
}

.product-showcase .card__body {
    padding: 2.5rem;
    text-align: center;
}

.product-showcase__title {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--color-dark);
    margin-bottom: 0.5rem;
}

.product-showcase__desc {
    color: var(--color-text-light);
    margin-bottom: 1.5rem;
}

.product-showcase__image-wrap {
    border-radius: var(--radius);
    overflow: hidden;
    background: linear-gradient(180deg, #f1f5f9 0%, #e2e8f0 100%);
    padding: 1.5rem;
}

.product-showcase__image {
    width: 100%;
    max-width: 600px;
    height: auto;
    margin: 0 auto;
    display: block;
    border-radius: 8px;
}

/* Award Section */
.award-section {
    margin-bottom: 2rem;
}

.award-section .card__body {
    padding: 2.5rem;
}

.award-section__title {
    font-size: 1.35rem;
    font-weight: 700;
    color: var(--color-dark);
    text-align: center;
    margin-bottom: 1.5rem;
}

.award-section__badge {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    background: linear-gradient(135deg, #fef3c7 0%, #fde68a 100%);
    color: #92400e;
    padding: 0.4rem 1rem;
    border-radius: 999px;
    font-size: 0.85rem;
    font-weight: 600;
    margin-bottom: 1.5rem;
}

.award-gallery {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1rem;
}

.award-gallery__item {
    display: block;
    aspect-ratio: 4/3;
    border-radius: var(--radius);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.award-gallery__item:hover {
    transform: scale(1.03);
    box-shadow: var(--shadow-md);
}

.award-gallery__item img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

/* About Page */
.about-content {
    max-width: 800px;
    margin: 0 auto;
}

.about-content .card__body {
    padding: 3rem;
    text-align: center;
}

.about-content__title {
    font-size: 1.75rem;
    font-weight: 700;
    color: var(--color-dark);
    margin-bottom: 2rem;
    position: relative;
    display: inline-block;
}

.about-content__title::after {
    content: '';
    position: absolute;
    bottom: -8px;
    left: 50%;
    transform: translateX(-50%);
    width: 48px;
    height: 3px;
    background: var(--color-accent);
    border-radius: 2px;
}

.about-content__text {
    font-size: 1.05rem;
    color: var(--color-text);
    line-height: 2;
    margin-bottom: 1rem;
}

.about-stats {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1.5rem;
    margin-top: 2.5rem;
    padding-top: 2rem;
    border-top: 1px solid #e2e8f0;
}

.about-stat {
    text-align: center;
}

.about-stat__value {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--color-primary-dark);
    margin-bottom: 0.25rem;
}

.about-stat__label {
    font-size: 0.85rem;
    color: var(--color-text-light);
}

/* Job Listings */
.job-list {
    display: flex;
    flex-direction: column;
    gap: 2rem;
}

.job-card .card__body {
    padding: 2.5rem;
    text-align: left;
}

.job-card__header {
    border-bottom: 1px solid #e2e8f0;
    padding-bottom: 1.25rem;
    margin-bottom: 1.5rem;
}

.job-card__title {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--color-dark);
    margin-bottom: 0.35rem;
}

.job-card__dept {
    font-size: 0.95rem;
    color: var(--color-text-light);
}

.job-card__section-title {
    font-size: 1.05rem;
    font-weight: 700;
    color: var(--color-dark);
    margin-bottom: 1rem;
    padding-left: 0.75rem;
    border-left: 3px solid var(--color-accent);
}

.job-card__subtitle {
    font-weight: 600;
    color: var(--color-text);
    margin-bottom: 0.75rem;
    font-size: 0.95rem;
}

.job-card__list {
    list-style: none;
    counter-reset: job-item;
    margin-bottom: 1.5rem;
}

.job-card__list li {
    position: relative;
    padding-left: 1.75rem;
    margin-bottom: 0.6rem;
    font-size: 0.95rem;
    color: var(--color-text);
    line-height: 1.7;
    counter-increment: job-item;
}

.job-card__list li::before {
    content: counter(job-item);
    position: absolute;
    left: 0;
    top: 0.15em;
    width: 1.25rem;
    height: 1.25rem;
    background: linear-gradient(135deg, #ecfeff 0%, #e0f2fe 100%);
    color: var(--color-primary-dark);
    font-size: 0.75rem;
    font-weight: 600;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    line-height: 1;
}

.job-card__apply {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    margin-top: 0.5rem;
    padding: 0.65rem 1.5rem;
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
    color: white;
    text-decoration: none;
    border-radius: 8px;
    font-size: 0.9rem;
    font-weight: 500;
    transition: opacity 0.25s ease, transform 0.25s ease;
}

.job-card__apply:hover {
    opacity: 0.9;
    transform: translateY(-1px);
}

/* Footer */
.site-footer {
    background: var(--color-dark);
    color: rgba(255, 255, 255, 0.85);
    padding: 3rem 1.5rem 2rem;
    text-align: center;
}

.site-footer__inner {
    max-width: 800px;
    margin: 0 auto;
}

.site-footer__company {
    font-size: 1.15rem;
    font-weight: 600;
    color: white;
    margin-bottom: 0.5rem;
}

.site-footer__address {
    color: rgba(255, 255, 255, 0.6);
    margin-bottom: 1.5rem;
    font-size: 0.9rem;
}

.site-footer__contact {
    margin-bottom: 0.5rem;
    font-size: 0.9rem;
}

.site-footer__contact a {
    color: var(--color-accent);
    text-decoration: none;
    transition: opacity 0.2s;
}

.site-footer__contact a:hover {
    opacity: 0.8;
    text-decoration: underline;
}

.site-footer__icp {
    margin-top: 1.5rem;
    padding-top: 1.5rem;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    font-size: 0.8rem;
    color: rgba(255, 255, 255, 0.45);
}

.site-footer__icp a {
    color: rgba(255, 255, 255, 0.45);
    text-decoration: none;
    transition: color 0.2s;
}

.site-footer__icp a:hover {
    color: var(--color-accent);
}

/* Responsive */
@media (max-width: 768px) {
    .site-nav__links {
        gap: 1rem;
    }

    .site-nav__link {
        font-size: 0.85rem;
    }

    .feature-grid {
        grid-template-columns: 1fr;
    }

    .award-gallery {
        grid-template-columns: 1fr;
    }

    .about-stats {
        grid-template-columns: 1fr;
        gap: 1rem;
    }

    .hero {
        padding: 100px 1rem 48px;
    }

    .job-card .card__body {
        padding: 1.5rem;
    }
}

@media (max-width: 480px) {
    .site-nav__inner {
        flex-direction: column;
        height: auto;
        padding: 0.75rem 0;
        gap: 0.5rem;
    }

    .site-nav__links {
        gap: 1.25rem;
    }
}