@import url('https://fonts.googleapis.com/css2?family=Oswald:wght@400;500;600&family=Space+Grotesk:wght@400;500;600&display=swap');

:root {
    --color-bg: #0b0c0f;
    --color-bg-alt: #111317;
    --color-panel: #1f1f24;
    --color-panel-alt: #24262d;
    --color-grid: rgba(255, 255, 255, 0.04);
    --color-primary: #c9a227;
    --color-primary-strong: #f5d26a;
    --color-secondary: #ff6b35;
    --color-muted: #9ea3b4;
    --color-text: #f5f5f5;
    --color-text-dim: #b6bac8;
    --color-border: rgba(201, 162, 39, 0.2);
    --color-border-strong: rgba(255, 255, 255, 0.3);
    --container-max: 1200px;
    --radius-base: 14px;
    --radius-pill: 999px;
    --shadow-soft: 0 20px 60px rgba(0, 0, 0, 0.5);
    --shadow-card: 0 10px 30px rgba(0, 0, 0, 0.35);
    --gradient-gold: linear-gradient(120deg, #c9a227, #f5d26a 60%, #c58e16);
    --gradient-dark: radial-gradient(circle at top, rgba(201, 162, 39, 0.25), transparent 55%), #0b0c0f;
    --font-heading: 'Oswald', 'Source Han Sans SC', 'Noto Sans SC', sans-serif;
    --font-body: 'Source Han Sans SC', 'Noto Sans SC', 'Microsoft YaHei', sans-serif;
    --font-data: 'Space Grotesk', 'DIN 2014', 'DIN Condensed', 'Roboto Mono', monospace;
    --spacing-xs: 0.35rem;
    --spacing-sm: 0.75rem;
    --spacing: 1.25rem;
    --spacing-lg: 2.5rem;
    --spacing-xl: 4rem;
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-body);
    background: var(--gradient-dark);
    color: var(--color-text);
    line-height: 1.7;
    font-size: 16px;
    position: relative;
    min-height: 100vh;
}

body::before {
    content: '';
    position: fixed;
    inset: 0;
    background-image: linear-gradient(var(--color-grid) 1px, transparent 1px), linear-gradient(90deg, var(--color-grid) 1px, transparent 1px);
    background-size: 120px 120px;
    opacity: 0.4;
    z-index: -2;
}

body::after {
    content: '';
    position: fixed;
    inset: 0;
    background: radial-gradient(circle, rgba(201, 162, 39, 0.08) 0%, transparent 60%);
    z-index: -1;
}

a {
    color: var(--color-primary-strong);
    text-decoration: none;
    transition: color 0.3s ease;
}

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

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

.container {
    width: min(92%, var(--container-max));
    margin: 0 auto;
}

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

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

.section-title .eyebrow {
    text-transform: uppercase;
    letter-spacing: 0.4em;
    font-size: 0.8rem;
    color: var(--color-muted);
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
}

.section-title .eyebrow::before,
.section-title .eyebrow::after {
    content: '';
    height: 1px;
    width: 40px;
    background: var(--color-border);
}

.section-title h2 {
    font-family: var(--font-heading);
    font-size: clamp(2rem, 4vw, 2.8rem);
    letter-spacing: 0.1em;
    margin-top: var(--spacing-sm);
}

.section-title p {
    color: var(--color-muted);
    max-width: 640px;
    margin: var(--spacing-sm) auto 0;
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 0.85rem 1.8rem;
    border-radius: var(--radius-pill);
    font-weight: 600;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    font-size: 0.85rem;
    border: 1px solid transparent;
    transition: transform 0.3s ease, box-shadow 0.3s ease, background 0.3s ease;
}

.btn-primary {
    background: var(--gradient-gold);
    color: #111;
    box-shadow: 0 10px 30px rgba(201, 162, 39, 0.35);
}

.btn-outline {
    border: 1px solid var(--color-primary);
    color: var(--color-primary-strong);
    background: transparent;
}

.btn-ghost {
    color: var(--color-text);
    border: 1px solid rgba(255, 255, 255, 0.2);
    background: rgba(255, 255, 255, 0.03);
}

.btn:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-card);
}

/* Header */
.site-header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    transition: background 0.4s ease, border 0.4s ease, backdrop-filter 0.4s ease;
    background: rgba(11, 12, 15, 0.6);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid transparent;
}

.site-header.scrolled {
    border-color: rgba(255, 255, 255, 0.08);
    background: rgba(11, 12, 15, 0.92);
}

.nav-container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 1rem 0;
}

.brand {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    font-family: var(--font-heading);
    letter-spacing: 0.1em;
    font-size: 1.05rem;
    color: var(--color-text);
}

.brand .logo-mark {
    width: 48px;
    height: 48px;
    border-radius: 10px;
    background: var(--gradient-gold);
    color: #111;
    display: grid;
    place-items: center;
    font-weight: 700;
    box-shadow: var(--shadow-soft);
}

.brand .brand-name {
    letter-spacing: 0.08em;
    font-size: 1rem;
}

.nav {
    display: flex;
    align-items: center;
    gap: 2rem;
}

.nav-list {
    list-style: none;
    display: flex;
    gap: 1.5rem;
    align-items: center;
}

.nav-list li {
    position: relative;
}

.nav-list a {
    color: var(--color-text);
    font-size: 0.95rem;
    letter-spacing: 0.08em;
    display: flex;
    align-items: center;
    gap: 0.35rem;
}

.nav-list .has-dropdown {
    padding-bottom: 1.25rem;
    margin-bottom: -1.25rem;
}

.nav-list .has-dropdown:hover .dropdown,
.nav-list .has-dropdown:focus-within .dropdown,
.nav-list .has-dropdown.dropdown-open .dropdown {
    opacity: 1;
    pointer-events: auto;
    transform: translateY(0);
}

.dropdown {
    position: absolute;
    top: 100%;
    left: 0;
    min-width: 220px;
    background: var(--color-panel);
    border-radius: var(--radius-base);
    border: 1px solid var(--color-border);
    box-shadow: var(--shadow-card);
    padding: 1rem;
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
    opacity: 0;
    pointer-events: none;
    transform: translateY(8px);
    transition: opacity 0.2s ease, transform 0.2s ease;
}

.dropdown a {
    font-size: 0.85rem;
    color: var(--color-muted);
}

.menu-toggle {
    display: none;
    border: none;
    background: transparent;
    color: var(--color-text);
    font-size: 1.8rem;
}

/* Hero */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding-top: 120px;
    overflow: hidden;
}

.hero-video {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    filter: grayscale(30%) brightness(0.6);
}

.hero::after {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(90deg, rgba(11, 12, 15, 0.95), rgba(11, 12, 15, 0.6));
}

.hero-content {
    position: relative;
    z-index: 2;
    max-width: 680px;
}

.hero-content .eyebrow {
    color: var(--color-primary-strong);
    letter-spacing: 0.6em;
    font-size: 0.8rem;
}

.hero-title {
    font-family: var(--font-heading);
    font-size: clamp(2.8rem, 6vw, 4.5rem);
    letter-spacing: 0.25em;
    margin: 1rem 0;
    text-transform: uppercase;
}

.hero-subtitle {
    color: var(--color-muted);
    margin-bottom: 1.5rem;
}

.hero-actions {
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
}

.hero-facts {
    display: flex;
    gap: 2rem;
    margin-top: 2rem;
    flex-wrap: wrap;
}

.hero-fact {
    font-family: var(--font-data);
    letter-spacing: 0.2em;
    text-transform: uppercase;
}

/* Stats */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    gap: 1.25rem;
}

.stat-card {
    background: var(--color-panel);
    padding: 1.5rem;
    border-radius: var(--radius-base);
    border: 1px solid var(--color-border);
    box-shadow: var(--shadow-card);
    position: relative;
    overflow: hidden;
}

.stat-card::after {
    content: '';
    position: absolute;
    inset: 0;
    border-radius: inherit;
    border: 1px solid rgba(255, 255, 255, 0.04);
    pointer-events: none;
}

.stat-value {
    font-size: 2.5rem;
    font-family: var(--font-data);
    color: var(--color-primary-strong);
}

.stat-label {
    text-transform: uppercase;
    font-size: 0.85rem;
    letter-spacing: 0.2em;
    color: var(--color-muted);
}

/* Product tabs */
.tab-controls {
    display: flex;
    flex-wrap: wrap;
    gap: 1rem;
    justify-content: center;
    margin-bottom: 2rem;
}

.tab-button {
    padding: 0.75rem 1.5rem;
    border-radius: var(--radius-pill);
    border: 1px solid var(--color-border);
    color: var(--color-muted);
    background: transparent;
    cursor: pointer;
    text-transform: uppercase;
    letter-spacing: 0.2em;
    transition: all 0.3s ease;
}

.tab-button.active {
    background: var(--gradient-gold);
    color: #111;
    border-color: transparent;
}

.tab-panel {
    display: none;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 1.25rem;
}

.tab-panel.active {
    display: grid;
}

.product-card {
    background: var(--color-panel);
    border-radius: var(--radius-base);
    padding: 1.5rem;
    border: 1px solid var(--color-border);
    min-height: 100%;
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.product-card h3 {
    font-family: var(--font-heading);
    letter-spacing: 0.15em;
}

.product-card .tags {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
}

.tag {
    padding: 0.25rem 0.75rem;
    border-radius: var(--radius-pill);
    border: 1px solid rgba(255, 255, 255, 0.2);
    font-size: 0.75rem;
    letter-spacing: 0.1em;
}

/* Advantage */
.advantage-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 1.5rem;
}

.advantage-card {
    padding: 2rem;
    border-radius: var(--radius-base);
    background: linear-gradient(135deg, rgba(255, 255, 255, 0.02), rgba(255, 255, 255, 0));
    border: 1px solid var(--color-border);
    box-shadow: var(--shadow-card);
    position: relative;
    overflow: hidden;
}

.advantage-card::after {
    content: '';
    position: absolute;
    top: -40px;
    right: -40px;
    width: 120px;
    height: 120px;
    border: 1px solid rgba(201, 162, 39, 0.3);
    border-radius: 50%;
}

.advantage-icon {
    width: 56px;
    height: 56px;
    border-radius: 12px;
    background: rgba(201, 162, 39, 0.1);
    border: 1px solid var(--color-border);
    display: grid;
    place-items: center;
    font-size: 1.5rem;
    color: var(--color-primary-strong);
    margin-bottom: 1rem;
}

/* Case grid */
.case-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 1.5rem;
}

.case-card {
    background: var(--color-panel);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-base);
    overflow: hidden;
    display: flex;
    flex-direction: column;
}

.case-card img {
    border-radius: 0;
    height: 200px;
    object-fit: cover;
}

.case-card .case-body {
    padding: 1.5rem;
}

.case-meta {
    font-size: 0.8rem;
    letter-spacing: 0.2em;
    color: var(--color-muted);
    text-transform: uppercase;
    margin-bottom: 0.75rem;
}

/* Badge wall */
.badge-wall {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(120px, 1fr));
    gap: 1rem;
    align-items: center;
}

.badge {
    border: 1px dashed var(--color-border);
    border-radius: var(--radius-base);
    padding: 1.5rem;
    text-align: center;
    font-size: 0.9rem;
    color: var(--color-muted);
    text-transform: uppercase;
    letter-spacing: 0.15em;
}

/* News */
.news-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 1.25rem;
}

.news-card {
    background: var(--color-panel);
    border-radius: var(--radius-base);
    border: 1px solid var(--color-border);
    padding: 1.5rem;
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

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

/* CTA */
.cta-panel {
    background: var(--color-panel-alt);
    border-radius: 24px;
    border: 1px solid var(--color-border);
    padding: 3rem;
    text-align: center;
    box-shadow: 0 20px 80px rgba(0, 0, 0, 0.6);
}

.cta-panel h3 {
    font-size: 2rem;
    font-family: var(--font-heading);
    letter-spacing: 0.15em;
    margin-bottom: 1rem;
}

/* Subpage layout */
.subpage-hero {
    position: relative;
    min-height: 320px;
    display: flex;
    align-items: flex-end;
    padding: 140px 0 2rem;
    background-size: cover;
    background-position: center;
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.subpage-hero::after {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(180deg, rgba(11, 12, 15, 0.2), rgba(11, 12, 15, 0.9));
}

.subpage-hero .hero-content {
    position: relative;
    z-index: 2;
}

.subpage-layout {
    display: grid;
    grid-template-columns: 280px 1fr;
    gap: 2rem;
    padding: var(--spacing-xl) 0;
}

.side-nav {
    background: var(--color-panel);
    border-radius: var(--radius-base);
    border: 1px solid var(--color-border);
    padding: 1.25rem;
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
}

.side-nav a {
    color: var(--color-muted);
    padding: 0.75rem 1rem;
    border-radius: var(--radius-base);
    letter-spacing: 0.15em;
    text-transform: uppercase;
    font-size: 0.75rem;
}

.side-nav a.active,
.side-nav a:hover {
    background: rgba(201, 162, 39, 0.1);
    color: var(--color-primary-strong);
}

.content-panel {
    background: rgba(255, 255, 255, 0.01);
    border-radius: var(--radius-base);
    border: 1px solid rgba(255, 255, 255, 0.05);
    padding: 2rem;
    box-shadow: var(--shadow-card);
}

.content-panel h2,
.content-panel h3 {
    font-family: var(--font-heading);
    letter-spacing: 0.2em;
    margin-bottom: 1rem;
}

.info-panels {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 1rem;
}

.info-panel {
    border: 1px solid var(--color-border);
    border-radius: var(--radius-base);
    padding: 1.25rem;
    background: rgba(201, 162, 39, 0.05);
}

.timeline {
    position: relative;
    padding-left: 2rem;
    border-left: 1px solid var(--color-border);
    margin-top: 2rem;
}

.timeline-item {
    margin-bottom: 1.5rem;
}

.timeline-item::before {
    content: '';
    position: absolute;
    left: -2.65rem;
    width: 14px;
    height: 14px;
    border-radius: 50%;
    border: 2px solid var(--color-primary);
    background: var(--color-bg);
}

.data-table {
    width: 100%;
    border-collapse: collapse;
    margin-top: 1.5rem;
}

.data-table th,
.data-table td {
    border: 1px solid rgba(255, 255, 255, 0.05);
    padding: 0.85rem 1rem;
}

.data-table th {
    background: rgba(255, 255, 255, 0.02);
    text-transform: uppercase;
    font-size: 0.8rem;
    letter-spacing: 0.2em;
}

.spec-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 1rem;
}

.spec-card {
    border: 1px solid var(--color-border);
    border-radius: var(--radius-base);
    padding: 1rem;
    background: rgba(255, 255, 255, 0.01);
}

.case-detail,
.news-detail {
    display: grid;
    gap: 1.5rem;
}

.service-flow {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1rem;
}

.service-step {
    border: 1px solid var(--color-border);
    border-radius: var(--radius-base);
    padding: 1.25rem;
}

.contact-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 1.5rem;
}

.contact-card,
.contact-form {
    background: var(--color-panel);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-base);
    padding: 2rem;
}

.contact-form form {
    display: grid;
    gap: 1rem;
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.form-group label {
    letter-spacing: 0.2em;
    font-size: 0.8rem;
    color: var(--color-muted);
}

.form-group input,
.form-group textarea,
.form-group select {
    padding: 0.85rem 1rem;
    border-radius: var(--radius-base);
    border: 1px solid rgba(255, 255, 255, 0.1);
    background: rgba(255, 255, 255, 0.02);
    color: var(--color-text);
}

textarea {
    min-height: 140px;
}

.job-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 1.25rem;
}

.job-card {
    border: 1px solid var(--color-border);
    border-radius: var(--radius-base);
    padding: 1.5rem;
    background: rgba(201, 162, 39, 0.04);
}

.insight-panel {
    margin-top: var(--spacing-xl);
}

.insight-header {
    text-align: left;
    margin-bottom: var(--spacing-lg);
}

.insight-header .eyebrow {
    text-transform: uppercase;
    letter-spacing: 0.4em;
    font-size: 0.8rem;
    color: var(--color-muted);
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
}

.insight-header .eyebrow::before,
.insight-header .eyebrow::after {
    content: '';
    width: 32px;
    height: 1px;
    background: var(--color-border);
}

.insight-header p {
    color: var(--color-muted);
    max-width: 720px;
}

.insight-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 1.25rem;
}

.insight-card {
    border: 1px solid var(--color-border);
    border-radius: var(--radius-base);
    padding: 1.4rem;
    background: rgba(255, 255, 255, 0.02);
    box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.02);
}

.insight-card h4 {
    letter-spacing: 0.18em;
    font-size: 0.95rem;
    margin-bottom: 0.5rem;
}

.insight-card p {
    color: var(--color-text-dim);
    font-size: 0.9rem;
}

.insight-stats {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    gap: 1rem;
    margin-top: var(--spacing-lg);
}

.insight-stat {
    border: 1px dashed rgba(201, 162, 39, 0.4);
    border-radius: var(--radius-base);
    padding: 1.2rem;
    text-align: center;
}

.insight-stat strong {
    display: block;
    font-family: var(--font-data);
    font-size: 1.2rem;
    color: var(--color-primary-strong);
}

.insight-stat span {
    display: block;
    margin-top: 0.25rem;
    letter-spacing: 0.18em;
    font-size: 0.75rem;
    color: var(--color-muted);
}

.insight-cta {
    margin-top: var(--spacing-lg);
    padding: 1.5rem;
    border-radius: var(--radius-base);
    border: 1px solid rgba(255, 255, 255, 0.05);
    display: flex;
    flex-wrap: wrap;
    gap: 1rem;
    align-items: center;
    justify-content: space-between;
    background: rgba(201, 162, 39, 0.06);
}

.insight-cta p {
    flex: 1;
    min-width: 200px;
    margin: 0;
    color: var(--color-text);
}

/* Footer */
.footer {
    padding: var(--spacing-xl) 0 var(--spacing-lg);
    background: #050506;
    border-top: 1px solid rgba(255, 255, 255, 0.05);
}

.footer-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1.5rem;
}

.footer h4 {
    font-family: var(--font-heading);
    letter-spacing: 0.2em;
    margin-bottom: 1rem;
}

.footer ul {
    list-style: none;
    display: grid;
    gap: 0.4rem;
}

.footer-bottom {
    margin-top: 2rem;
    border-top: 1px solid rgba(255, 255, 255, 0.05);
    padding-top: 1.5rem;
    font-size: 0.85rem;
    color: var(--color-muted);
    letter-spacing: 0.12em;
}

/* Utilities */
.text-muted { color: var(--color-muted); }
.mt-1 { margin-top: 0.5rem; }
.mt-2 { margin-top: 1rem; }
.mt-3 { margin-top: 1.5rem; }
.mt-4 { margin-top: 2rem; }
.gap-1 { gap: 1rem; }

/* Responsive */
@media (max-width: 992px) {
    .nav {
        position: fixed;
        inset: 0 0 0 30%;
        background: rgba(11, 12, 15, 0.98);
        flex-direction: column;
        padding: 4rem 2rem;
        transform: translateX(100%);
        transition: transform 0.4s ease;
    }

    .nav.open {
        transform: translateX(0);
    }

    .nav-list {
        flex-direction: column;
        gap: 1rem;
    }

    .menu-toggle {
        display: block;
    }

    .nav-list .has-dropdown {
        padding-bottom: 0;
        margin-bottom: 0;
    }

    .dropdown {
        position: static;
        opacity: 1;
        pointer-events: auto;
        transform: none;
        box-shadow: none;
        border: none;
        padding: 0;
        gap: 0.25rem;
    }

    .dropdown a {
        padding-left: 0.5rem;
    }

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

    .hero-actions {
        flex-direction: column;
        align-items: flex-start;
    }
}

@media (max-width: 600px) {
    .tab-controls {
        flex-direction: column;
    }

    .hero-facts {
        flex-direction: column;
    }

    .cta-panel {
        padding: 2rem;
    }
}

@media (prefers-reduced-motion: reduce) {
    *, *::before, *::after {
        animation-duration: 0.001ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.001ms !important;
        scroll-behavior: auto !important;
    }
}