/* 湖南旺族科技有限公司官网 - 东方古韵·科技传承设计体系 */
@import url('https://fonts.googleapis.com/css2?family=ZCOOL+XiaoWei&family=Noto+Serif+SC:wght@400;600&family=Noto+Sans+SC:wght@400;500;600&family=Roboto+Condensed:wght@400;600&display=swap');

:root {
    --color-crimson: #8B0000;           /* 故宫红 */
    --color-crimson-dark: #5C0000;
    --color-gold: #C79A3B;              /* 鎏金 */
    --color-gold-light: #E4C884;
    --color-ink: #2C2C2C;
    --color-ink-light: #666666;
    --color-paper: #FFFEF5;             /* 宣纸白 */
    --color-deep: #1A1A1A;
    --color-slate: #202020;
    --color-blue: #4A90D9;              /* 科技蓝 */
    --color-blue-dark: #1E3F73;
    --color-border: rgba(139, 0, 0, 0.08);
    --gradient-hero: radial-gradient(circle at 20% 20%, rgba(196, 153, 86, 0.4), transparent 40%),
                     radial-gradient(circle at 80% 0%, rgba(37, 85, 135, 0.35), transparent 50%),
                     linear-gradient(135deg, rgba(16, 16, 23, 0.92), rgba(43, 12, 12, 0.95));
    --gradient-dark: linear-gradient(120deg, rgba(10, 10, 10, 0.95), rgba(50, 20, 20, 0.98));
    --gradient-cta: linear-gradient(135deg, #8B0000, #C96430);

    --font-heading: 'ZCOOL XiaoWei', 'Noto Serif SC', serif;
    --font-body: 'Noto Sans SC', 'Microsoft YaHei', sans-serif;
    --font-data: 'Roboto Condensed', 'DIN Alternate', sans-serif;

    --spacing-xs: 0.5rem;
    --spacing-sm: 0.85rem;
    --spacing-md: 1.5rem;
    --spacing-lg: 2.5rem;
    --spacing-xl: 4rem;
    --spacing-xxl: 6rem;

    --radius-sm: 10px;
    --radius-md: 16px;
    --radius-lg: 26px;

    --shadow-soft: 0 20px 45px rgba(0, 0, 0, 0.08);
    --shadow-deep: 0 30px 70px rgba(0, 0, 0, 0.18);
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-body);
    background-color: var(--color-paper);
    color: var(--color-ink);
    line-height: 1.7;
}

body::before {
    content: "";
    position: fixed;
    inset: 0;
    background-image: url('../images/9_old_document_digital.png');
    background-size: cover;
    background-repeat: no-repeat;
    opacity: 0.08;
    z-index: -2;
}

img {
    max-width: 100%;
    display: block;
    border-radius: var(--radius-sm);
}

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

a:hover {
    color: var(--color-gold);
}

.container {
    width: min(1200px, calc(100% - 2.5rem));
    margin: 0 auto;
}

.section {
    padding: var(--spacing-xl) 0;
    position: relative;
}

.section::after {
    content: "";
    position: absolute;
    left: 50%;
    bottom: 0;
    width: 120px;
    height: 3px;
    background: linear-gradient(90deg, rgba(139,0,0,0), rgba(199,154,59,0.8), rgba(139,0,0,0));
    transform: translateX(-50%);
    opacity: 0.35;
}

.section.is-dark::after,
.section.no-divider::after {
    display: none;
}

.section.is-dark {
    background: var(--gradient-dark);
    color: #fff;
}

.section.ink-wash {
    background: rgba(255, 254, 245, 0.92);
    position: relative;
    overflow: hidden;
}

.section.ink-wash::before {
    content: "";
    position: absolute;
    inset: 0;
    background: url('../images/26_chinese_architecture_modern.png') center/cover;
    opacity: 0.08;
    mix-blend-mode: multiply;
}

.section-heading {
    text-align: center;
    margin-bottom: var(--spacing-lg);
}

.section-heading h2 {
    font-family: var(--font-heading);
    font-size: clamp(2rem, 3vw, 2.6rem);
    color: var(--color-crimson);
}

.section.is-dark .section-heading h2 {
    color: var(--color-gold-light);
}

.section-heading p {
    color: var(--color-ink-light);
    margin-top: var(--spacing-xs);
}

.section.is-dark .section-heading p {
    color: rgba(255,255,255,0.7);
}

/* ================= Header ================= */
.site-header {
    position: sticky;
    top: 0;
    width: 100%;
    background: rgba(255, 254, 245, 0.9);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--color-border);
    z-index: 1000;
    transition: box-shadow 0.3s ease;
}

.site-header.scrolled {
    box-shadow: 0 12px 35px rgba(0, 0, 0, 0.08);
}

.nav-container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--spacing-md);
    padding: var(--spacing-sm) 0;
}

.brand {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.brand-seal {
    width: 54px;
    height: 54px;
    border: 3px solid var(--color-crimson);
    border-radius: 12px;
    display: grid;
    place-items: center;
    font-family: var(--font-heading);
    font-size: 1.4rem;
    color: var(--color-crimson);
    position: relative;
}

.brand-seal::after {
    content: "";
    position: absolute;
    inset: 4px;
    border: 1px solid rgba(139, 0, 0, 0.3);
    border-radius: 8px;
    pointer-events: none;
}

.brand-meta span:first-child {
    font-weight: 600;
    letter-spacing: 0.08em;
}

.brand-meta span:last-child {
    color: var(--color-ink-light);
    font-size: 0.85rem;
    letter-spacing: 0.2em;
}

.nav-menu {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    list-style: none;
}

.nav-item {
    position: relative;
    padding: var(--spacing-xs) 0;
}

.nav-item > a {
    font-weight: 500;
    color: var(--color-ink);
    padding-bottom: 4px;
    border-bottom: 2px solid transparent;
    transition: border-color 0.3s ease, color 0.3s ease;
}

.nav-item > a:hover,
.nav-item > a:focus {
    color: var(--color-crimson);
    border-color: var(--color-gold);
}

.dropdown-panel {
    position: absolute;
    top: calc(100% + 8px);
    left: 0;
    min-width: 200px;
    background: #fff;
    border-radius: var(--radius-md);
    border: 1px solid var(--color-border);
    box-shadow: var(--shadow-soft);
    padding: var(--spacing-sm);
    display: none;
    flex-direction: column;
    gap: var(--spacing-xs);
    z-index: 999;
}

.nav-item:hover .dropdown-panel,
.nav-item:focus-within .dropdown-panel,
.nav-item.dropdown-open .dropdown-panel {
    display: flex;
}

.dropdown-panel a {
    font-size: 0.95rem;
    padding: 6px 10px;
    border-radius: var(--radius-sm);
    color: var(--color-ink);
}

.dropdown-panel a:hover {
    background: rgba(199, 154, 59, 0.1);
    color: var(--color-crimson);
}

.menu-toggle {
    display: none;
    font-size: 1.5rem;
    border: 1px solid var(--color-border);
    padding: 6px 12px;
    border-radius: var(--radius-sm);
    cursor: pointer;
}

/* ================= Buttons ================= */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 0.75rem 1.8rem;
    border-radius: 999px;
    font-weight: 600;
    letter-spacing: 0.06em;
    border: 1px solid transparent;
    cursor: pointer;
    transition: transform 0.3s ease, box-shadow 0.3s ease, background 0.3s ease;
}

.btn-primary {
    background: var(--gradient-cta);
    color: #fff;
    box-shadow: 0 15px 40px rgba(139, 0, 0, 0.25);
}

.btn-primary:hover {
    transform: translateY(-3px);
}

.btn-outline {
    border-color: rgba(255, 255, 255, 0.6);
    color: #fff;
    background: transparent;
}

.btn-ghost {
    border-color: var(--color-crimson);
    color: var(--color-crimson);
    background: transparent;
}

.btn-ghost:hover {
    color: var(--color-gold);
    border-color: var(--color-gold);
}

/* ================= Hero ================= */
.hero {
    min-height: 85vh;
    display: grid;
    align-items: center;
    background: var(--gradient-hero);
    color: #fff;
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: "";
    position: absolute;
    inset: 0;
    background: url('../images/1_hero_banner_tech.png') right/cover no-repeat;
    opacity: 0.25;
}

.hero::after {
    content: "";
    position: absolute;
    inset: 0;
    background-image: url('../images/32_family_tree_digital.png');
    background-size: cover;
    mix-blend-mode: screen;
    opacity: 0.08;
}

.hero-content {
    position: relative;
    z-index: 3;
    padding: var(--spacing-xl) 0;
}

.hero-title {
    font-family: var(--font-heading);
    font-size: clamp(2.5rem, 5vw, 3.6rem);
    margin-bottom: var(--spacing-sm);
}

.hero-subtitle {
    color: rgba(255,255,255,0.8);
    max-width: 620px;
    margin-bottom: var(--spacing-md);
}

.hero-actions {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-sm);
}

.hero-stats {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-md);
    margin-top: var(--spacing-lg);
}

.stat {
    min-width: 180px;
    padding: var(--spacing-sm) var(--spacing-md);
    border-radius: var(--radius-md);
    border: 1px solid rgba(255,255,255,0.2);
    backdrop-filter: blur(10px);
}

.stat strong {
    font-size: 2rem;
    display: block;
    font-family: var(--font-data);
}

/* Particle canvas */
.hero canvas {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    z-index: 1;
    pointer-events: none;
}

/* ================= Cards & grids ================= */
.grid {
    display: grid;
    gap: var(--spacing-lg);
}

.grid-3 {
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
}

.grid-2 {
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
}

.card {
    background: rgba(255, 255, 255, 0.95);
    border-radius: var(--radius-md);
    border: 1px solid var(--color-border);
    padding: var(--spacing-md);
    box-shadow: var(--shadow-soft);
    position: relative;
    overflow: hidden;
}

.card::before {
    content: "";
    position: absolute;
    inset: 15px;
    border: 1px solid rgba(199, 154, 59, 0.25);
    border-radius: calc(var(--radius-md) - 10px);
    pointer-events: none;
}

.card > * {
    position: relative;
}

.card h3 {
    font-family: var(--font-heading);
    color: var(--color-crimson);
    margin-bottom: var(--spacing-xs);
}

.card p {
    color: var(--color-ink-light);
}

.card.is-dark {
    background: rgba(14, 14, 14, 0.9);
    color: #fff;
}

.card.is-dark p {
    color: rgba(255,255,255,0.8);
}

/* ================= Gene chain ================= */
.gene-panel {
    background: radial-gradient(circle at 20% 20%, rgba(74,144,217,0.25), rgba(7,7,7,0.9));
    border-radius: var(--radius-lg);
    padding: var(--spacing-lg);
    color: #fff;
    position: relative;
    overflow: hidden;
    box-shadow: var(--shadow-deep);
}

.gene-panel::after {
    content: "";
    position: absolute;
    inset: 0;
    background: url('../images/6_gene_chain_visualization.png') center/cover;
    opacity: 0.12;
}

.tree-levels {
    position: relative;
    display: grid;
    gap: var(--spacing-md);
    z-index: 2;
}

.tree-level {
    display: flex;
    justify-content: center;
    gap: var(--spacing-md);
}

.tree-node {
    min-width: 140px;
    padding: var(--spacing-xs) var(--spacing-sm);
    border-radius: 20px;
    border: 1px solid rgba(255,255,255,0.2);
    text-align: center;
    font-family: var(--font-data);
    font-size: 0.95rem;
    letter-spacing: 0.05em;
    position: relative;
    opacity: 0.4;
    transition: opacity 0.5s ease, transform 0.5s ease;
}

.tree-node::before {
    content: "";
    position: absolute;
    width: 2px;
    height: 28px;
    background: linear-gradient(180deg, rgba(255,255,255,0), rgba(255,255,255,0.6));
    left: 50%;
    top: -28px;
    transform: translateX(-50%);
}

.tree-level:first-child .tree-node::before {
    display: none;
}

.tree-node.active {
    opacity: 1;
    background: rgba(199, 154, 59, 0.2);
    border-color: rgba(199, 154, 59, 0.8);
    transform: translateY(-4px);
}

/* ================= Scroll row ================= */
.scroll-row {
    display: grid;
    grid-auto-flow: column;
    grid-auto-columns: minmax(240px, 1fr);
    gap: var(--spacing-md);
    overflow-x: auto;
    scroll-snap-type: x mandatory;
    padding-bottom: var(--spacing-sm);
}

.scroll-row::-webkit-scrollbar {
    height: 6px;
}

.scroll-row::-webkit-scrollbar-thumb {
    background: rgba(139,0,0,0.4);
    border-radius: 999px;
}

.scroll-card {
    background: rgba(255,255,255,0.9);
    border: 1px solid rgba(199,154,59,0.3);
    border-radius: var(--radius-md);
    padding: var(--spacing-md);
    scroll-snap-align: start;
}

.scroll-card h4 {
    font-family: var(--font-heading);
}

/* ================= Split layout ================= */
.split-layout {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: var(--spacing-lg);
    align-items: center;
}

.split-layout .visual {
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-soft);
}

.security-list li {
    list-style: none;
    padding-left: 1.8rem;
    position: relative;
    margin-bottom: var(--spacing-sm);
}

.security-list li::before {
    content: "";
    position: absolute;
    left: 0;
    top: 0.35rem;
    width: 1rem;
    height: 1rem;
    border-radius: 50%;
    border: 2px solid var(--color-gold);
}

/* ================= Cases & partners ================= */
.case-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-lg);
}

.case-card {
    position: relative;
    background: #fff;
    border-radius: var(--radius-lg);
    border: 1px solid var(--color-border);
    box-shadow: var(--shadow-soft);
    overflow: hidden;
}

.case-card img {
    height: 220px;
    width: 100%;
    object-fit: cover;
}

.case-card .content {
    padding: var(--spacing-md);
}

.case-card .tag {
    display: inline-block;
    padding: 2px 12px;
    border-radius: 999px;
    background: rgba(139,0,0,0.08);
    color: var(--color-crimson);
    font-size: 0.85rem;
    margin-bottom: var(--spacing-xs);
}

.logo-wall {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
    gap: var(--spacing-md);
    align-items: center;
}

.logo-wall img {
    padding: var(--spacing-sm);
    border: 1px solid rgba(255,255,255,0.15);
    border-radius: var(--radius-md);
    background: rgba(255,255,255,0.05);
}

/* ================= CTA & footer ================= */
.cta {
    padding: var(--spacing-xl) 0;
    background: linear-gradient(135deg, rgba(60,0,0,0.95), rgba(17,34,64,0.95));
    color: #fff;
}

.cta .cta-panel {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: var(--spacing-xl);
    align-items: center;
}

.cta h3 {
    font-family: var(--font-heading);
    font-size: clamp(2rem, 3vw, 2.8rem);
}

.footer {
    background: #0E0B0B;
    color: rgba(255,255,255,0.8);
    padding: var(--spacing-xl) 0 var(--spacing-lg);
    position: relative;
}

.footer::before {
    content: "";
    position: absolute;
    inset: 0;
    background: url('../images/31_digital_culture_creative.png') center/cover;
    opacity: 0.05;
}

.footer-grid {
    position: relative;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: var(--spacing-lg);
}

.footer h4 {
    color: var(--color-gold-light);
    font-family: var(--font-heading);
}

.footer ul {
    list-style: none;
    margin-top: var(--spacing-xs);
}

.footer ul li {
    margin-bottom: var(--spacing-xs);
}

.footer-bottom {
    text-align: center;
    margin-top: var(--spacing-xl);
    font-size: 0.9rem;
    color: rgba(255,255,255,0.6);
}

/* ================= Detail pages ================= */
.detail-hero {
    padding: var(--spacing-xl) 0;
    background: linear-gradient(135deg, rgba(139,0,0,0.85), rgba(22,34,55,0.95)), url('../images/37_family_members_connecting.png') center/cover;
    color: #fff;
    position: relative;
}

.detail-hero .breadcrumbs {
    font-size: 0.9rem;
    color: rgba(255,255,255,0.7);
    margin-bottom: var(--spacing-xs);
}

.detail-layout {
    display: grid;
    grid-template-columns: minmax(0, 3fr) minmax(260px, 1fr);
    gap: var(--spacing-lg);
    align-items: start;
}

.detail-card {
    background: #fff;
    border-radius: var(--radius-md);
    padding: var(--spacing-md);
    border: 1px solid var(--color-border);
    box-shadow: var(--shadow-soft);
}

.detail-card h3 {
    font-family: var(--font-heading);
    margin-bottom: var(--spacing-sm);
}

.badge-list {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-xs);
}

.badge {
    padding: 4px 14px;
    border-radius: 999px;
    background: rgba(139,0,0,0.08);
    color: var(--color-crimson);
    font-size: 0.85rem;
}

.timeline {
    display: grid;
    gap: var(--spacing-md);
    position: relative;
}

.timeline::before {
    content: "";
    position: absolute;
    left: 20px;
    top: 0;
    bottom: 0;
    width: 2px;
    background: linear-gradient(180deg, var(--color-gold), transparent);
}

.timeline-item {
    padding-left: 70px;
    position: relative;
}

.timeline-item::before {
    content: attr(data-year);
    position: absolute;
    left: 0;
    top: 0;
    width: 50px;
    text-align: center;
    font-family: var(--font-heading);
    color: var(--color-crimson);
}

.timeline-item::after {
    content: "";
    position: absolute;
    left: 18px;
    top: 6px;
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background: var(--color-gold);
    border: 2px solid #fff;
}

.news-list {
    display: grid;
    gap: var(--spacing-lg);
}

.news-card {
    display: grid;
    grid-template-columns: 220px 1fr;
    gap: var(--spacing-md);
    align-items: center;
    padding-bottom: var(--spacing-md);
    border-bottom: 1px solid rgba(0,0,0,0.08);
}

.news-card img {
    height: 140px;
    object-fit: cover;
}

.news-meta {
    display: flex;
    gap: var(--spacing-sm);
    font-size: 0.9rem;
    color: var(--color-ink-light);
}

.job-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--spacing-lg);
}

.job-card {
    background: rgba(255,255,255,0.95);
    border-radius: var(--radius-md);
    border: 1px solid var(--color-border);
    padding: var(--spacing-md);
    box-shadow: var(--shadow-soft);
}

.job-card h3 {
    font-family: var(--font-heading);
    color: var(--color-crimson);
}

.job-card .job-meta {
    color: var(--color-ink-light);
    font-size: 0.9rem;
    margin-bottom: var(--spacing-sm);
}

.job-card ul {
    margin-left: 1rem;
    color: var(--color-ink-light);
}

.job-detail table {
    width: 100%;
    border-collapse: collapse;
}

.job-detail th,
.job-detail td {
    padding: 0.8rem;
    border-bottom: 1px solid rgba(0,0,0,0.1);
    text-align: left;
}

.contact-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: var(--spacing-lg);
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: 0.4rem;
}

.form-group input,
.form-group textarea,
.form-group select {
    border: 1px solid rgba(0,0,0,0.1);
    border-radius: var(--radius-sm);
    padding: 0.85rem 1rem;
    background: rgba(255,255,255,0.9);
}

.form-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: var(--spacing-sm);
}

.media-block {
    background: rgba(255,255,255,0.95);
    border-radius: var(--radius-md);
    border: 1px solid var(--color-border);
    padding: var(--spacing-md);
    box-shadow: var(--shadow-soft);
}

.table-like {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    gap: var(--spacing-sm);
}

.table-like div {
    background: rgba(139,0,0,0.05);
    padding: var(--spacing-sm);
    border-radius: var(--radius-sm);
}

/* ================= Animations ================= */
[data-animate] {
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

[data-animate].visible {
    opacity: 1;
    transform: translateY(0);
}

@keyframes float-spark {
    from { transform: translateY(0); opacity: 1; }
    to { transform: translateY(-100px); opacity: 0; }
}

@keyframes ink-pulse {
    0% { box-shadow: 0 0 0 0 rgba(199,154,59,0.4);} 
    100% { box-shadow: 0 0 0 20px rgba(199,154,59,0); }
}

/* ================= Responsive ================= */
@media (max-width: 1080px) {
    .nav-menu {
        position: absolute;
        top: 100%;
        right: 1rem;
        background: rgba(255, 254, 245, 0.95);
        border: 1px solid var(--color-border);
        border-radius: var(--radius-md);
        box-shadow: var(--shadow-soft);
        padding: var(--spacing-md);
        flex-direction: column;
        align-items: flex-start;
        min-width: 240px;
        display: none;
    }

    .site-header.nav-open .nav-menu {
        display: flex;
    }

    .menu-toggle {
        display: block;
    }

    .dropdown-panel {
        position: relative;
        border: none;
        box-shadow: none;
        padding: 0;
        background: transparent;
    }
}

@media (max-width: 768px) {
    .hero-stats {
        flex-direction: column;
    }

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

    .detail-layout {
        grid-template-columns: 1fr;
    }

    .section::after {
        width: 80px;
    }
}