/* ======================================================
   GUANYU — 贯域网络科技
   B2B SaaS Dark Void × Emerald Signal Design System
   ====================================================== */

/* === FONTS === */
@import url('https://fonts.googleapis.com/css2?family=Space+Mono:wght@400;700&family=Sora:wght@300;400;500;600;700&family=Noto+Sans+SC:wght@300;400;500;700&display=swap');

/* === DESIGN TOKENS === */
:root {
    /* Colors */
    --bg:         #06060F;
    --bg-2:       #0A0A18;
    --surface:    #0D0D1C;
    --surface-2:  #111126;
    --border:     rgba(255,255,255,0.07);
    --border-em:  rgba(0,229,160,0.3);

    /* Accent — Emerald Signal */
    --em:         #00E5A0;
    --em-dim:     rgba(0,229,160,0.12);
    --em-glow:    rgba(0,229,160,0.25);
    --em-dark:    #00B87E;

    /* Secondary — Electric Indigo */
    --ind:        #6366F1;
    --ind-dim:    rgba(99,102,241,0.12);

    /* Text */
    --text:       #E8E8F0;
    --text-2:     #8888AA;
    --text-3:     #4A4A6A;
    --text-muted: #2E2E4A;

    /* White */
    --white:      #FFFFFF;

    /* Typography */
    --font-mono:  'Space Mono', monospace;
    --font-body:  'Sora', 'Noto Sans SC', sans-serif;
    --font-cn:    'Noto Sans SC', 'Sora', sans-serif;

    /* Spacing */
    --container:  1280px;
    --pad:        clamp(20px, 5vw, 80px);

    /* Radius */
    --r-sm:       6px;
    --r-md:       12px;
    --r-lg:       20px;
    --r-xl:       32px;

    /* Transitions */
    --ease:       cubic-bezier(0.4, 0, 0.2, 1);
    --t-fast:     0.15s;
    --t-base:     0.3s;
    --t-slow:     0.6s;
}

/* === RESET === */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { font-size: 16px; scroll-behavior: smooth; }
body {
    font-family: var(--font-body);
    background: var(--bg);
    color: var(--text);
    line-height: 1.7;
    -webkit-font-smoothing: antialiased;
    overflow-x: hidden;
}
a { color: inherit; text-decoration: none; }
button { cursor: pointer; border: none; background: none; font-family: inherit; }
img { display: block; max-width: 100%; }
input, textarea, select { font-family: inherit; }
h1,h2,h3,h4,h5,h6 { font-family: var(--font-body); font-weight: 600; line-height: 1.2; }
::selection { background: var(--em); color: #000; }
::-webkit-scrollbar { width: 4px; }
::-webkit-scrollbar-track { background: var(--bg); }
::-webkit-scrollbar-thumb { background: var(--text-3); border-radius: 2px; }
:focus-visible { outline: 1px solid var(--em); outline-offset: 3px; }

/* === UTILITIES === */
.container { max-width: var(--container); margin: 0 auto; padding: 0 var(--pad); }
.sr-only { position: absolute; width: 1px; height: 1px; padding: 0; overflow: hidden; clip: rect(0,0,0,0); }

/* === ANIMATIONS === */
@keyframes fadeUp {
    from { opacity: 0; transform: translateY(40px); }
    to   { opacity: 1; transform: translateY(0); }
}
@keyframes fadeIn {
    from { opacity: 0; }
    to   { opacity: 1; }
}
@keyframes slideDown {
    from { opacity: 0; transform: translateY(-20px); }
    to   { opacity: 1; transform: translateY(0); }
}
@keyframes countUp {
    from { opacity: 0; transform: translateY(8px); }
    to   { opacity: 1; transform: translateY(0); }
}
@keyframes expandWidth {
    from { width: 0; }
    to   { width: 100%; }
}
@keyframes pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.4; }
}
@keyframes glowPulse {
    0%, 100% { opacity: 0.5; transform: scale(1); }
    50% { opacity: 1; transform: scale(1.05); }
}
@keyframes marquee {
    0% { transform: translateX(0); }
    100% { transform: translateX(-50%); }
}
@keyframes scanline {
    0% { transform: translateY(-100%); }
    100% { transform: translateY(100vh); }
}

/* === SCROLL REVEAL === */
.reveal {
    opacity: 0;
    transform: translateY(36px);
    transition: opacity 0.8s var(--ease), transform 0.8s var(--ease);
}
.reveal.visible { opacity: 1; transform: translateY(0); }
.reveal.delay-1 { transition-delay: 0.1s; }
.reveal.delay-2 { transition-delay: 0.2s; }
.reveal.delay-3 { transition-delay: 0.3s; }

/* ======================================================
   NAVIGATION
   ====================================================== */
.nav {
    position: fixed;
    top: 0; left: 0; right: 0;
    z-index: 100;
    padding: 20px var(--pad);
    transition: all var(--t-base) var(--ease);
}
.nav.scrolled {
    background: rgba(6,6,15,0.85);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--border);
    padding-top: 14px;
    padding-bottom: 14px;
}
.nav-inner {
    max-width: var(--container);
    margin: 0 auto;
    display: flex;
    align-items: center;
    gap: 40px;
}
.nav-logo {
    display: flex;
    align-items: center;
    gap: 10px;
    transition: opacity var(--t-fast);
}
.nav-logo:hover { opacity: 0.75; }
.logo-mark {
    color: var(--em);
    font-size: 1.2rem;
    animation: glowPulse 3s ease-in-out infinite;
}
.logo-text {
    font-family: var(--font-mono);
    font-size: 1.05rem;
    font-weight: 700;
    letter-spacing: 0.2em;
    color: var(--white);
    position: relative;
}
.logo-dot {
    display: inline-block;
    width: 5px; height: 5px;
    background: var(--em);
    border-radius: 50%;
    vertical-align: super;
    font-size: 0.5em;
    animation: pulse 2s ease-in-out infinite;
    margin-left: 2px;
}
.nav-links {
    display: flex;
    gap: 36px;
    margin-left: auto;
}
.nav-link {
    font-family: var(--font-body);
    font-size: 0.82rem;
    font-weight: 400;
    letter-spacing: 0.04em;
    color: var(--text-2);
    transition: color var(--t-fast);
    position: relative;
}
.nav-link::after {
    content: '';
    position: absolute;
    bottom: -4px; left: 0;
    width: 0; height: 1px;
    background: var(--em);
    transition: width var(--t-base);
}
.nav-link:hover { color: var(--text); }
.nav-link:hover::after { width: 100%; }
.nav-cta {
    display: flex;
    align-items: center;
    gap: 6px;
    padding: 8px 20px;
    border: 1px solid var(--em);
    border-radius: var(--r-sm);
    font-size: 0.8rem;
    font-weight: 600;
    color: var(--em);
    letter-spacing: 0.04em;
    transition: all var(--t-base);
    white-space: nowrap;
}
.nav-cta:hover {
    background: var(--em);
    color: #000;
}
.cta-arrow { transition: transform var(--t-fast); }
.nav-cta:hover .cta-arrow { transform: translateX(3px); }
.nav-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    width: 28px;
    padding: 4px;
}
.nav-toggle span {
    display: block;
    height: 1.5px;
    background: var(--text);
    border-radius: 1px;
    transition: all var(--t-base);
}

/* ======================================================
   HERO
   ====================================================== */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    overflow: hidden;
}
.hero-bg {
    position: absolute;
    inset: 0;
    pointer-events: none;
}
/* Animated grid */
.hero-grid {
    position: absolute;
    inset: 0;
    background-image:
        linear-gradient(rgba(255,255,255,0.025) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255,255,255,0.025) 1px, transparent 1px);
    background-size: 60px 60px;
    mask-image: radial-gradient(ellipse 80% 60% at 50% 40%, black, transparent);
}
/* Glow orbs */
.hero-glow {
    position: absolute;
    border-radius: 50%;
    filter: blur(80px);
    pointer-events: none;
}
.hero-glow-1 {
    width: 600px; height: 600px;
    background: radial-gradient(circle, rgba(0,229,160,0.12), transparent 70%);
    top: -100px; right: 5%;
    animation: glowPulse 6s ease-in-out infinite;
}
.hero-glow-2 {
    width: 400px; height: 400px;
    background: radial-gradient(circle, rgba(99,102,241,0.08), transparent 70%);
    bottom: 0; left: -5%;
    animation: glowPulse 8s ease-in-out infinite reverse;
}
/* Scanline */
.hero-noise {
    position: absolute;
    inset: 0;
    background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noise'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noise)' opacity='0.03'/%3E%3C/svg%3E");
    opacity: 0.4;
    pointer-events: none;
}
.hero-content {
    position: relative;
    z-index: 2;
    padding-top: 120px;
    padding-bottom: 80px;
    max-width: var(--container);
}
.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 6px 16px;
    border: 1px solid var(--border-em);
    border-radius: 100px;
    font-family: var(--font-mono);
    font-size: 0.7rem;
    color: var(--em);
    letter-spacing: 0.1em;
    margin-bottom: 36px;
    animation: fadeUp 0.8s var(--ease) both;
}
.badge-dot {
    width: 6px; height: 6px;
    background: var(--em);
    border-radius: 50%;
    animation: pulse 2s infinite;
}
.hero-title {
    font-size: clamp(3rem, 8vw, 6.5rem);
    font-weight: 700;
    line-height: 1.05;
    letter-spacing: -0.02em;
    color: var(--white);
    margin-bottom: 28px;
    animation: fadeUp 0.8s 0.1s var(--ease) both;
}
.title-accent {
    color: var(--em);
    position: relative;
    display: inline-block;
}
.title-accent::after {
    content: '';
    position: absolute;
    bottom: 4px; left: 0;
    width: 100%; height: 3px;
    background: linear-gradient(90deg, var(--em), transparent);
    border-radius: 2px;
}
.hero-desc {
    font-size: clamp(1rem, 2vw, 1.2rem);
    color: var(--text-2);
    max-width: 560px;
    line-height: 1.8;
    margin-bottom: 44px;
    animation: fadeUp 0.8s 0.2s var(--ease) both;
}
.hero-desc strong { color: var(--em); font-weight: 500; }
.hero-actions {
    display: flex;
    gap: 16px;
    flex-wrap: wrap;
    margin-bottom: 72px;
    animation: fadeUp 0.8s 0.3s var(--ease) both;
}
.btn-primary {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 14px 32px;
    background: var(--em);
    color: #000;
    font-weight: 700;
    font-size: 0.9rem;
    letter-spacing: 0.04em;
    border-radius: var(--r-sm);
    transition: all var(--t-base);
}
.btn-primary:hover {
    background: #00FFB2;
    transform: translateY(-2px);
    box-shadow: 0 8px 30px rgba(0,229,160,0.3);
}
.btn-ghost {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 14px 28px;
    border: 1px solid var(--border);
    color: var(--text-2);
    font-size: 0.9rem;
    border-radius: var(--r-sm);
    transition: all var(--t-base);
}
.btn-ghost:hover {
    border-color: rgba(255,255,255,0.2);
    color: var(--text);
    background: rgba(255,255,255,0.04);
}
/* Hero Stats */
.hero-stats {
    display: flex;
    gap: 48px;
    animation: fadeUp 0.8s 0.4s var(--ease) both;
}
.stat-item {
    display: flex;
    flex-direction: column;
    gap: 4px;
}
.stat-num {
    font-family: var(--font-mono);
    font-size: 2.2rem;
    font-weight: 700;
    color: var(--white);
    line-height: 1;
}
.stat-unit {
    font-family: var(--font-mono);
    font-size: 1.1rem;
    font-weight: 400;
    color: var(--em);
}
.stat-label {
    font-size: 0.72rem;
    color: var(--text-3);
    letter-spacing: 0.1em;
    text-transform: uppercase;
}
.stat-divider {
    width: 1px;
    background: var(--border);
    align-self: stretch;
    margin: 4px 0;
}
/* Scroll hint */
.hero-scroll-hint {
    position: absolute;
    bottom: 40px;
    right: var(--pad);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
    font-family: var(--font-mono);
    font-size: 0.6rem;
    color: var(--text-3);
    letter-spacing: 0.15em;
    text-transform: uppercase;
    animation: fadeIn 1s 1s both;
}
.scroll-line {
    width: 1px;
    height: 50px;
    background: linear-gradient(to bottom, var(--em), transparent);
    animation: scanline 2s ease-in-out infinite;
}

/* ======================================================
   SECTION COMMONS
   ====================================================== */
section { padding: 100px 0; }
.section-header {
    margin-bottom: 64px;
}
.section-tag {
    font-family: var(--font-mono);
    font-size: 0.65rem;
    font-weight: 700;
    color: var(--em);
    letter-spacing: 0.25em;
    text-transform: uppercase;
    margin-bottom: 16px;
    display: flex;
    align-items: center;
    gap: 10px;
}
.section-tag::before {
    content: '';
    width: 24px; height: 1px;
    background: var(--em);
}
.section-title {
    font-size: clamp(2.2rem, 5vw, 3.5rem);
    font-weight: 700;
    color: var(--white);
    letter-spacing: -0.02em;
    line-height: 1.15;
    margin-bottom: 16px;
}
.title-em {
    color: var(--em);
    font-weight: 300;
}
.section-sub {
    font-size: 1rem;
    color: var(--text-2);
    max-width: 480px;
    line-height: 1.7;
}

/* ======================================================
   VALUE PROPS
   ====================================================== */
.section-values {
    padding: 80px 0;
    border-top: 1px solid var(--border);
    border-bottom: 1px solid var(--border);
    background: linear-gradient(to bottom, rgba(0,229,160,0.02), transparent);
}
.values-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 1px;
    background: var(--border);
    border: 1px solid var(--border);
    border-radius: var(--r-lg);
    overflow: hidden;
}
.value-card {
    background: var(--bg);
    padding: 40px 32px;
    transition: background var(--t-base);
}
.value-card:hover { background: var(--surface); }
.value-icon {
    font-size: 1.5rem;
    color: var(--em);
    margin-bottom: 20px;
    line-height: 1;
}
.value-card h3 {
    font-size: 1rem;
    font-weight: 600;
    color: var(--white);
    margin-bottom: 10px;
}
.value-card p {
    font-size: 0.85rem;
    color: var(--text-2);
    line-height: 1.7;
}

/* ======================================================
   SERVICES OVERVIEW
   ====================================================== */
.section-services {
    background: var(--bg);
}
.services-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
}
.service-card {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--r-lg);
    padding: 40px 32px;
    position: relative;
    overflow: hidden;
    transition: all var(--t-slow);
}
.service-card::before {
    content: '';
    position: absolute;
    top: 0; left: 0; right: 0;
    height: 2px;
    background: linear-gradient(90deg, var(--em), var(--ind));
    opacity: 0;
    transition: opacity var(--t-base);
}
.service-card:hover { border-color: var(--border-em); transform: translateY(-4px); }
.service-card:hover::before { opacity: 1; }
.service-card-main::after {
    content: '';
    position: absolute;
    inset: 0;
    background: radial-gradient(ellipse at top left, var(--em-dim), transparent 60%);
    opacity: 0;
    transition: opacity var(--t-slow);
    pointer-events: none;
}
.service-card-main:hover::after { opacity: 1; }
.service-num {
    font-family: var(--font-mono);
    font-size: 0.65rem;
    color: var(--text-3);
    letter-spacing: 0.15em;
    margin-bottom: 20px;
}
.service-icon {
    font-size: 2rem;
    color: var(--em);
    margin-bottom: 20px;
    line-height: 1;
}
.service-card h3 {
    font-size: 1.3rem;
    font-weight: 700;
    color: var(--white);
    margin-bottom: 8px;
}
.service-tagline {
    font-family: var(--font-mono);
    font-size: 0.7rem;
    color: var(--em);
    letter-spacing: 0.1em;
    margin-bottom: 16px;
}
.service-desc {
    font-size: 0.88rem;
    color: var(--text-2);
    line-height: 1.7;
    margin-bottom: 24px;
}
.service-features {
    display: flex;
    flex-direction: column;
    gap: 8px;
    margin-bottom: 28px;
}
.service-features li {
    font-size: 0.82rem;
    color: var(--text-2);
    padding-left: 16px;
    position: relative;
}
.service-features li::before {
    content: '→';
    position: absolute;
    left: 0;
    color: var(--em);
    font-size: 0.7rem;
}
.service-cycle {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-top: 20px;
    border-top: 1px solid var(--border);
    margin-bottom: 20px;
}
.cycle-label {
    font-size: 0.72rem;
    color: var(--text-3);
    letter-spacing: 0.08em;
}
.cycle-val {
    font-family: var(--font-mono);
    font-size: 0.85rem;
    font-weight: 700;
    color: var(--white);
}
.service-link {
    font-size: 0.8rem;
    font-weight: 600;
    color: var(--em);
    letter-spacing: 0.05em;
    transition: gap var(--t-fast);
}

/* ======================================================
   PACKAGES
   ====================================================== */
.section-packages {
    background: var(--bg-2);
}
.pkg-block {
    margin-bottom: 60px;
    border: 1px solid var(--border);
    border-radius: var(--r-xl);
    overflow: hidden;
    background: var(--surface);
}
.pkg-block-alt {
    border-color: var(--border-em);
    background: linear-gradient(135deg, var(--surface), rgba(0,229,160,0.03));
}
.pkg-header {
    display: flex;
    align-items: center;
    gap: 20px;
    padding: 36px 48px;
    border-bottom: 1px solid var(--border);
    background: rgba(0,0,0,0.2);
}
.pkg-badge {
    padding: 4px 16px;
    border-radius: 100px;
    font-family: var(--font-mono);
    font-size: 0.65rem;
    font-weight: 700;
    letter-spacing: 0.15em;
    text-transform: uppercase;
    flex-shrink: 0;
}
.pkg-badge-1 { background: var(--em-dim); color: var(--em); border: 1px solid var(--border-em); }
.pkg-badge-2 { background: var(--ind-dim); color: var(--ind); border: 1px solid rgba(99,102,241,0.3); }
.pkg-badge-3 { background: rgba(255,140,0,0.1); color: #FF8C00; border: 1px solid rgba(255,140,0,0.3); }
.pkg-name {
    font-size: 1.6rem;
    font-weight: 700;
    color: var(--white);
    margin-bottom: 4px;
}
.pkg-core {
    font-size: 0.85rem;
    color: var(--text-2);
}
.pkg-content {
    padding: 48px;
}
.pkg-modules {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 32px;
    margin-bottom: 36px;
}
.pkg-module {
    display: flex;
    gap: 16px;
    align-items: flex-start;
}
.module-icon {
    font-size: 1.2rem;
    color: var(--em);
    flex-shrink: 0;
    margin-top: 2px;
    line-height: 1;
}
.module-info h4 {
    font-size: 0.95rem;
    font-weight: 600;
    color: var(--white);
    margin-bottom: 8px;
}
.module-info p {
    font-size: 0.82rem;
    color: var(--text-2);
    line-height: 1.7;
}
.pkg-deliverables {
    padding-top: 28px;
    border-top: 1px solid var(--border);
}
.deliverable-title {
    font-family: var(--font-mono);
    font-size: 0.65rem;
    color: var(--text-3);
    letter-spacing: 0.2em;
    text-transform: uppercase;
    margin-bottom: 14px;
}
.deliverable-list {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}
.del-tag {
    padding: 6px 16px;
    background: var(--em-dim);
    border: 1px solid var(--border-em);
    border-radius: 100px;
    font-size: 0.78rem;
    color: var(--em);
    font-family: var(--font-mono);
}
.pkg-timeline {
    padding: 36px 48px;
    border-top: 1px solid var(--border);
    background: rgba(0,0,0,0.15);
}
.timeline-title {
    font-family: var(--font-mono);
    font-size: 0.65rem;
    color: var(--text-3);
    letter-spacing: 0.2em;
    text-transform: uppercase;
    margin-bottom: 28px;
}
.timeline-steps {
    display: flex;
    align-items: center;
    gap: 0;
    overflow-x: auto;
    padding-bottom: 8px;
}
.tl-step {
    flex: 1;
    min-width: 140px;
}
.tl-num {
    font-family: var(--font-mono);
    font-size: 0.65rem;
    color: var(--em);
    letter-spacing: 0.1em;
    margin-bottom: 8px;
}
.tl-info strong {
    display: block;
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--white);
    margin-bottom: 4px;
}
.tl-info span {
    font-size: 0.75rem;
    color: var(--text-2);
}
.tl-arrow {
    color: var(--text-3);
    font-size: 1.2rem;
    padding: 0 12px;
    flex-shrink: 0;
}

/* ======================================================
   COMPARISON TABLE
   ====================================================== */
.section-compare { background: var(--bg); }
.compare-table {
    border: 1px solid var(--border);
    border-radius: var(--r-lg);
    overflow: hidden;
    background: var(--surface);
}
.compare-row {
    display: grid;
    grid-template-columns: 200px repeat(4, 1fr);
    border-bottom: 1px solid var(--border);
}
.compare-row:last-child { border-bottom: none; }
.compare-row:hover { background: rgba(255,255,255,0.02); }
.compare-header {
    background: rgba(0,0,0,0.3);
}
.compare-header .compare-cell {
    font-family: var(--font-mono);
    font-size: 0.7rem;
    font-weight: 700;
    color: var(--text-2);
    letter-spacing: 0.1em;
}
.compare-label {
    font-size: 0.8rem;
    color: var(--text-3);
    padding: 16px 20px;
    display: flex;
    align-items: center;
}
.compare-cell {
    padding: 16px 20px;
    font-size: 0.82rem;
    color: var(--text-2);
    display: flex;
    align-items: center;
    border-left: 1px solid var(--border);
}
.compare-highlight {
    background: rgba(0,229,160,0.04);
}
.compare-highlight .compare-cell {
    color: var(--em);
    font-weight: 500;
}
.compare-highlight.compare-cell {
    color: var(--em);
    font-weight: 600;
}
.cell-tag {
    padding: 2px 10px;
    border-radius: 100px;
    font-size: 0.72rem;
    font-family: var(--font-mono);
}
.cell-tag.neutral { background: rgba(255,255,255,0.06); color: var(--text-2); }
.cell-tag.good { background: rgba(99,102,241,0.15); color: var(--ind); }
.cell-tag.bad { background: rgba(255,80,80,0.12); color: #FF5050; }
.cell-tag.best { background: var(--em-dim); color: var(--em); border: 1px solid var(--border-em); }

/* ======================================================
   SUCCESS CASES
   ====================================================== */
.section-cases { background: var(--bg-2); }
.cases-grid {
    display: grid;
    grid-template-columns: 1fr 1fr 1fr;
    gap: 20px;
}
.case-card {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--r-lg);
    padding: 36px;
    position: relative;
    overflow: hidden;
    transition: all var(--t-slow);
}
.case-card:hover {
    border-color: var(--border-em);
    transform: translateY(-3px);
}
.case-card::after {
    content: '';
    position: absolute;
    inset: 0;
    background: radial-gradient(ellipse at top right, var(--em-dim), transparent 60%);
    opacity: 0;
    transition: opacity var(--t-slow);
    pointer-events: none;
}
.case-card:hover::after { opacity: 1; }
.case-card-large {
    grid-row: span 1;
}
.case-cat {
    font-family: var(--font-mono);
    font-size: 0.62rem;
    color: var(--em);
    letter-spacing: 0.2em;
    text-transform: uppercase;
    margin-bottom: 16px;
}
.case-title {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--white);
    margin-bottom: 12px;
    line-height: 1.3;
}
.case-challenge {
    font-size: 0.82rem;
    color: var(--text-2);
    line-height: 1.7;
    margin-bottom: 28px;
}
.case-results {
    display: flex;
    gap: 24px;
    margin-bottom: 24px;
    padding: 20px;
    background: rgba(0,0,0,0.2);
    border-radius: var(--r-md);
    border: 1px solid var(--border);
}
.case-stat {
    display: flex;
    flex-direction: column;
    gap: 4px;
}
.cs-num {
    font-family: var(--font-mono);
    font-size: 1rem;
    font-weight: 700;
    color: var(--em);
}
.cs-label {
    font-size: 0.68rem;
    color: var(--text-3);
}
.case-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
}
.case-tags span {
    padding: 4px 12px;
    background: var(--surface-2);
    border: 1px solid var(--border);
    border-radius: 100px;
    font-size: 0.7rem;
    color: var(--text-2);
    font-family: var(--font-mono);
}

/* ======================================================
   PROCESS
   ====================================================== */
.section-process { background: var(--bg); }
.process-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 1px;
    background: var(--border);
    border: 1px solid var(--border);
    border-radius: var(--r-lg);
    overflow: hidden;
}
.process-step {
    background: var(--surface);
    padding: 36px 28px;
    position: relative;
    transition: background var(--t-base);
}
.process-step:hover { background: var(--surface-2); }
.ps-num {
    font-family: var(--font-mono);
    font-size: 2.5rem;
    font-weight: 700;
    color: rgba(0,229,160,0.12);
    margin-bottom: 16px;
    line-height: 1;
}
.ps-connector {
    width: 30px; height: 1px;
    background: var(--border-em);
    margin-bottom: 16px;
}
.process-step h4 {
    font-size: 1rem;
    font-weight: 600;
    color: var(--white);
    margin-bottom: 8px;
}
.process-step p {
    font-size: 0.8rem;
    color: var(--text-2);
    line-height: 1.6;
}

/* ======================================================
   FAQ
   ====================================================== */
.section-faq { background: var(--bg-2); }
.faq-list {
    max-width: 800px;
}
.faq-item {
    border-bottom: 1px solid var(--border);
}
.faq-item:first-child { border-top: 1px solid var(--border); }
.faq-question {
    width: 100%;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 24px 0;
    font-size: 1rem;
    font-weight: 500;
    color: var(--text);
    text-align: left;
    gap: 20px;
    transition: color var(--t-fast);
}
.faq-question:hover { color: var(--white); }
.faq-icon {
    font-size: 1.2rem;
    color: var(--em);
    font-weight: 300;
    flex-shrink: 0;
    transition: transform var(--t-base);
}
.faq-question[aria-expanded="true"] .faq-icon { transform: rotate(45deg); }
.faq-answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height var(--t-slow), padding var(--t-base);
}
.faq-answer.open { max-height: 300px; padding-bottom: 20px; }
.faq-answer p {
    font-size: 0.88rem;
    color: var(--text-2);
    line-height: 1.8;
}

/* ======================================================
   CONTACT / CTA
   ====================================================== */
.section-contact {
    position: relative;
    background: var(--bg);
    overflow: hidden;
}
.contact-bg {
    position: absolute;
    inset: 0;
    pointer-events: none;
}
.contact-glow {
    position: absolute;
    width: 800px; height: 800px;
    left: -200px; top: 50%;
    transform: translateY(-50%);
    background: radial-gradient(circle, rgba(0,229,160,0.06), transparent 60%);
}
.contact-inner {
    position: relative;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 80px;
    align-items: center;
}
.contact-left { }
.contact-desc {
    font-size: 1rem;
    color: var(--text-2);
    line-height: 1.8;
    margin: 20px 0 36px;
}
.contact-info { display: flex; flex-direction: column; gap: 16px; }
.ci-item {
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: 0.88rem;
    color: var(--text-2);
}
.ci-icon { color: var(--em); font-size: 0.8rem; }
.contact-right { }
.contact-form {
    display: flex;
    flex-direction: column;
    gap: 20px;
}
.form-group { display: flex; flex-direction: column; gap: 8px; }
.form-group label {
    font-size: 0.78rem;
    font-weight: 500;
    color: var(--text-2);
    letter-spacing: 0.05em;
}
.form-group input,
.form-group textarea,
.form-group select {
    padding: 12px 16px;
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--r-sm);
    color: var(--text);
    font-size: 0.88rem;
    transition: border-color var(--t-fast);
}
.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
    outline: none;
    border-color: var(--em);
}
.form-group input::placeholder,
.form-group textarea::placeholder { color: var(--text-3); }
.form-group textarea { resize: vertical; min-height: 100px; }
.btn-submit {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 16px 32px;
    background: var(--em);
    color: #000;
    font-weight: 700;
    font-size: 0.9rem;
    border-radius: var(--r-sm);
    transition: all var(--t-base);
    margin-top: 4px;
}
.btn-submit:hover {
    background: #00FFB2;
    transform: translateY(-2px);
    box-shadow: 0 8px 30px rgba(0,229,160,0.3);
}
.form-success {
    text-align: center;
    padding: 60px 40px;
    background: var(--surface);
    border: 1px solid var(--border-em);
    border-radius: var(--r-lg);
}
.success-icon {
    width: 60px; height: 60px;
    background: var(--em-dim);
    border: 1px solid var(--border-em);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    color: var(--em);
    margin: 0 auto 20px;
}
.form-success h3 {
    font-size: 1.4rem;
    font-weight: 700;
    color: var(--white);
    margin-bottom: 10px;
}
.form-success p {
    font-size: 0.88rem;
    color: var(--text-2);
    line-height: 1.7;
}
.form-success strong { color: var(--em); }

/* ======================================================
   FOOTER
   ====================================================== */
.footer {
    border-top: 1px solid var(--border);
    background: var(--bg-2);
    padding: 60px 0 40px;
}
.footer-top {
    display: grid;
    grid-template-columns: 280px 1fr;
    gap: 80px;
    margin-bottom: 48px;
    padding-bottom: 48px;
    border-bottom: 1px solid var(--border);
}
.footer-logo {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 12px;
}
.footer-tagline {
    font-size: 0.82rem;
    color: var(--text-2);
    margin-bottom: 6px;
}
.footer-vision {
    font-family: var(--font-mono);
    font-size: 0.65rem;
    color: var(--text-3);
    letter-spacing: 0.1em;
}
.footer-links {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 40px;
}
.footer-col {
    display: flex;
    flex-direction: column;
    gap: 12px;
}
.footer-col h5 {
    font-size: 0.78rem;
    font-weight: 600;
    color: var(--white);
    letter-spacing: 0.05em;
    margin-bottom: 4px;
}
.footer-col a {
    font-size: 0.82rem;
    color: var(--text-2);
    transition: color var(--t-fast);
}
.footer-col a:hover { color: var(--em); }
.footer-info {
    font-size: 0.75rem;
    color: var(--text-3);
}
.footer-bottom {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 12px;
}
.footer-bottom p {
    font-size: 0.75rem;
    color: var(--text-3);
}
.footer-note { font-family: var(--font-mono); letter-spacing: 0.05em; }

/* ======================================================
   RESPONSIVE
   ====================================================== */
@media (max-width: 1024px) {
    .services-grid { grid-template-columns: 1fr; max-width: 600px; }
    .cases-grid { grid-template-columns: 1fr 1fr; }
    .process-grid { grid-template-columns: repeat(2, 1fr); }
    .pkg-modules { grid-template-columns: 1fr; }
    .compare-row { grid-template-columns: 160px repeat(4, 1fr); }
}
@media (max-width: 768px) {
    .nav-links { display: none; }
    .nav-toggle { display: flex; margin-left: auto; }
    .hero-stats { gap: 28px; flex-wrap: wrap; }
    .values-grid { grid-template-columns: repeat(2, 1fr); }
    .cases-grid { grid-template-columns: 1fr; }
    .process-grid { grid-template-columns: 1fr 1fr; }
    .contact-inner { grid-template-columns: 1fr; gap: 48px; }
    .footer-top { grid-template-columns: 1fr; gap: 40px; }
    .footer-links { grid-template-columns: repeat(2, 1fr); }
    .pkg-header { padding: 24px; flex-direction: column; align-items: flex-start; gap: 12px; }
    .pkg-content { padding: 28px; }
    .pkg-timeline { padding: 24px; }
    .compare-row { grid-template-columns: 120px repeat(4, 1fr); font-size: 0.72rem; }
    .section-title { font-size: 2rem; }
    .hero-actions { flex-direction: column; }
    .hero-actions .btn-primary,
    .hero-actions .btn-ghost { width: 100%; justify-content: center; }
}
@media (max-width: 480px) {
    .values-grid { grid-template-columns: 1fr; }
    .process-grid { grid-template-columns: 1fr; }
    .compare-row { grid-template-columns: 100px repeat(2, 1fr); }
    .compare-row .compare-cell:nth-child(n+4) { display: none; }
    .footer-bottom { flex-direction: column; align-items: flex-start; }
}