/* ============================================
   远航水手 SAILOR - 海外内容增长官网
   深色海洋主题 · 响应式设计
   ============================================ */

/* --- CSS Variables --- */
:root {
    /* Colors - Ocean Dark Theme */
    --bg-primary: #060d1a;
    --bg-secondary: #0a1628;
    --bg-card: #0f1f38;
    --bg-card-hover: #14284a;
    --bg-elevated: #1a3055;

    --accent-primary: #3b82f6;
    --accent-secondary: #06b6d4;
    --accent-gold: #f59e0b;
    --accent-gradient: linear-gradient(135deg, #3b82f6 0%, #06b6d4 100%);
    --accent-gradient-gold: linear-gradient(135deg, #f59e0b 0%, #f97316 100%);

    --text-primary: #f1f5f9;
    --text-secondary: #94a3b8;
    --text-muted: #64748b;
    --text-inverse: #060d1a;

    --border-color: rgba(59, 130, 246, 0.15);
    --border-hover: rgba(59, 130, 246, 0.4);

    --success: #10b981;
    --error: #ef4444;

    /* Typography */
    --font-sans: 'Inter', 'Noto Sans SC', -apple-system, BlinkMacSystemFont, sans-serif;
    --font-size-base: 16px;
    --line-height-base: 1.7;

    /* Spacing */
    --container-max: 1200px;
    --section-padding: 100px 0;
    --section-padding-mobile: 60px 0;
    --card-radius: 16px;
    --card-radius-sm: 12px;

    /* Shadows */
    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.3);
    --shadow-md: 0 8px 24px rgba(0, 0, 0, 0.4);
    --shadow-lg: 0 16px 48px rgba(0, 0, 0, 0.5);
    --shadow-glow: 0 0 40px rgba(59, 130, 246, 0.2);

    /* Transitions */
    --transition-fast: 0.2s ease;
    --transition-base: 0.3s ease;
    --transition-slow: 0.5s ease;
}

/* --- Reset & Base --- */
*, *::before, *::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
    font-size: var(--font-size-base);
}

body {
    font-family: var(--font-sans);
    background-color: var(--bg-primary);
    color: var(--text-primary);
    line-height: var(--line-height-base);
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

img { max-width: 100%; height: auto; display: block; }
a { color: inherit; text-decoration: none; transition: color var(--transition-fast); }
ul { list-style: none; }
button { cursor: pointer; font-family: inherit; border: none; background: none; color: inherit; }
input, textarea, select { font-family: inherit; font-size: inherit; }

/* --- Container --- */
.container {
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 24px;
}

/* --- Section Base --- */
.section {
    padding: var(--section-padding);
    position: relative;
}

.section-dark {
    background-color: var(--bg-secondary);
}

.section-header {
    text-align: center;
    margin-bottom: 60px;
}

.section-tag {
    display: inline-block;
    font-size: 0.8rem;
    font-weight: 600;
    letter-spacing: 2px;
    color: var(--accent-secondary);
    text-transform: uppercase;
    margin-bottom: 16px;
    padding: 6px 16px;
    background: rgba(6, 182, 212, 0.1);
    border-radius: 100px;
    border: 1px solid rgba(6, 182, 212, 0.2);
}

.section-title {
    font-size: 2.2rem;
    font-weight: 700;
    line-height: 1.3;
    margin-bottom: 16px;
    background: linear-gradient(180deg, var(--text-primary) 0%, var(--text-secondary) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.section-desc {
    font-size: 1.05rem;
    color: var(--text-secondary);
    max-width: 640px;
    margin: 0 auto;
}

/* --- Buttons --- */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 14px 32px;
    font-size: 0.95rem;
    font-weight: 600;
    border-radius: 100px;
    transition: all var(--transition-base);
    cursor: pointer;
    white-space: nowrap;
}

.btn-primary {
    background: var(--accent-gradient);
    color: #fff;
    box-shadow: 0 4px 20px rgba(59, 130, 246, 0.4);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 30px rgba(59, 130, 246, 0.5);
}

.btn-outline {
    border: 1.5px solid var(--border-hover);
    color: var(--text-primary);
    background: transparent;
}

.btn-outline:hover {
    background: rgba(59, 130, 246, 0.1);
    border-color: var(--accent-primary);
    transform: translateY(-2px);
}

.btn-full {
    width: 100%;
}

/* --- Navigation --- */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    padding: 18px 0;
    transition: all var(--transition-base);
    background: transparent;
}

.navbar.scrolled {
    background: rgba(6, 13, 26, 0.85);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--border-color);
    padding: 12px 0;
}

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

.nav-logo {
    display: flex;
    align-items: center;
    gap: 10px;
}

.logo-icon {
    font-size: 1.5rem;
}

.logo-text {
    font-size: 1.2rem;
    font-weight: 800;
    letter-spacing: 1px;
    background: var(--accent-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    display: flex;
    flex-direction: column;
    line-height: 1.1;
}

.logo-text small {
    font-size: 0.6rem;
    font-weight: 500;
    letter-spacing: 3px;
    color: var(--text-muted);
    -webkit-text-fill-color: var(--text-muted);
}

.nav-menu {
    display: flex;
    align-items: center;
    gap: 36px;
}

.nav-menu a {
    font-size: 0.9rem;
    font-weight: 500;
    color: var(--text-secondary);
    position: relative;
}

.nav-menu a:hover {
    color: var(--text-primary);
}

.nav-menu a:not(.nav-cta)::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--accent-gradient);
    transition: width var(--transition-base);
}

.nav-menu a:not(.nav-cta):hover::after {
    width: 100%;
}

.nav-cta {
    padding: 10px 24px !important;
    background: var(--accent-gradient);
    color: #fff !important;
    border-radius: 100px;
    font-weight: 600 !important;
    box-shadow: 0 4px 15px rgba(59, 130, 246, 0.3);
}

.nav-cta:hover {
    transform: translateY(-1px);
    box-shadow: 0 6px 20px rgba(59, 130, 246, 0.4);
}

.nav-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    padding: 8px;
}

.nav-toggle span {
    display: block;
    width: 24px;
    height: 2px;
    background: var(--text-primary);
    border-radius: 2px;
    transition: all var(--transition-base);
}

.nav-toggle.active span:nth-child(1) {
    transform: translateY(7px) rotate(45deg);
}
.nav-toggle.active span:nth-child(2) {
    opacity: 0;
}
.nav-toggle.active span:nth-child(3) {
    transform: translateY(-7px) rotate(-45deg);
}

/* --- Hero --- */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    position: relative;
    overflow: hidden;
    padding: 120px 0 80px;
}

.hero-bg {
    position: absolute;
    inset: 0;
    z-index: 0;
}

.hero-grid {
    position: absolute;
    inset: 0;
    background-image:
        linear-gradient(rgba(59, 130, 246, 0.03) 1px, transparent 1px),
        linear-gradient(90deg, rgba(59, 130, 246, 0.03) 1px, transparent 1px);
    background-size: 60px 60px;
    mask-image: radial-gradient(ellipse at center, black 30%, transparent 70%);
    -webkit-mask-image: radial-gradient(ellipse at center, black 30%, transparent 70%);
}

.hero-glow {
    position: absolute;
    border-radius: 50%;
    filter: blur(100px);
    opacity: 0.4;
}

.glow-1 {
    width: 500px;
    height: 500px;
    background: var(--accent-primary);
    top: -100px;
    right: -100px;
    animation: float 8s ease-in-out infinite;
}

.glow-2 {
    width: 400px;
    height: 400px;
    background: var(--accent-secondary);
    bottom: -50px;
    left: -100px;
    animation: float 10s ease-in-out infinite reverse;
}

@keyframes float {
    0%, 100% { transform: translate(0, 0); }
    50% { transform: translate(30px, -30px); }
}

.hero-content {
    position: relative;
    z-index: 1;
    text-align: center;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 8px 20px;
    background: rgba(59, 130, 246, 0.1);
    border: 1px solid rgba(59, 130, 246, 0.2);
    border-radius: 100px;
    font-size: 0.85rem;
    color: var(--accent-secondary);
    margin-bottom: 32px;
}

.badge-dot {
    width: 8px;
    height: 8px;
    background: var(--success);
    border-radius: 50%;
    animation: pulse 2s ease-in-out infinite;
}

@keyframes pulse {
    0%, 100% { opacity: 1; transform: scale(1); }
    50% { opacity: 0.5; transform: scale(1.2); }
}

.hero-title {
    font-size: 3.5rem;
    font-weight: 800;
    line-height: 1.2;
    margin-bottom: 24px;
    letter-spacing: -1px;
}

.gradient-text {
    background: var(--accent-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-subtitle {
    font-size: 1.15rem;
    color: var(--text-secondary);
    margin-bottom: 40px;
    line-height: 1.8;
}

.hero-actions {
    display: flex;
    gap: 16px;
    justify-content: center;
    margin-bottom: 64px;
    flex-wrap: wrap;
}

.hero-stats {
    display: flex;
    justify-content: center;
    gap: 60px;
    flex-wrap: wrap;
}

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

.stat-num {
    font-size: 2rem;
    font-weight: 800;
    background: var(--accent-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 4px;
}

.stat-label {
    font-size: 0.85rem;
    color: var(--text-muted);
}

.scroll-indicator {
    position: absolute;
    bottom: 30px;
    left: 50%;
    transform: translateX(-50%);
    width: 26px;
    height: 40px;
    border: 2px solid var(--text-muted);
    border-radius: 13px;
    display: flex;
    justify-content: center;
    padding-top: 8px;
}

.scroll-indicator span {
    width: 4px;
    height: 8px;
    background: var(--accent-secondary);
    border-radius: 2px;
    animation: scrollDown 2s ease-in-out infinite;
}

@keyframes scrollDown {
    0% { transform: translateY(0); opacity: 1; }
    100% { transform: translateY(12px); opacity: 0; }
}

/* --- Market Shift --- */
.shift-grid {
    display: grid;
    grid-template-columns: 1fr auto 1fr;
    gap: 32px;
    align-items: stretch;
}

.shift-card {
    padding: 40px;
    border-radius: var(--card-radius);
    border: 1px solid var(--border-color);
    position: relative;
    overflow: hidden;
}

.shift-before {
    background: rgba(100, 116, 139, 0.05);
}

.shift-now {
    background: linear-gradient(135deg, rgba(59, 130, 246, 0.1) 0%, rgba(6, 182, 212, 0.05) 100%);
    border-color: rgba(59, 130, 246, 0.3);
}

.shift-label {
    font-size: 0.75rem;
    font-weight: 700;
    letter-spacing: 2px;
    margin-bottom: 16px;
}

.shift-before .shift-label { color: var(--text-muted); }
.shift-now .shift-label { color: var(--accent-secondary); }

.shift-card h3 {
    font-size: 1.5rem;
    margin-bottom: 20px;
}

.shift-list {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    margin-bottom: 20px;
}

.shift-list li {
    padding: 8px 16px;
    background: rgba(255, 255, 255, 0.05);
    border-radius: 8px;
    font-size: 0.9rem;
    color: var(--text-secondary);
}

.shift-flow {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 8px;
    margin-bottom: 20px;
}

.shift-flow span {
    padding: 8px 14px;
    background: rgba(59, 130, 246, 0.15);
    border-radius: 8px;
    font-size: 0.85rem;
    color: var(--text-primary);
}

.flow-arrow {
    background: none !important;
    padding: 0 !important;
    color: var(--accent-secondary) !important;
    font-weight: 700;
}

.shift-desc {
    font-size: 0.9rem;
    color: var(--text-secondary);
    line-height: 1.7;
}

.shift-arrow {
    display: flex;
    align-items: center;
    font-size: 2rem;
    color: var(--accent-secondary);
    font-weight: 300;
}

/* --- Content Assets --- */
.assets-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
}

.asset-card {
    padding: 36px 28px;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--card-radius);
    text-align: center;
    transition: all var(--transition-base);
}

.asset-card:hover {
    transform: translateY(-6px);
    border-color: var(--border-hover);
    background: var(--bg-card-hover);
    box-shadow: var(--shadow-glow);
}

.asset-icon {
    font-size: 2.5rem;
    margin-bottom: 16px;
}

.asset-card h3 {
    font-size: 1.2rem;
    margin-bottom: 10px;
    color: var(--text-primary);
}

.asset-card p {
    font-size: 0.85rem;
    color: var(--text-secondary);
    line-height: 1.7;
}

/* --- Value Proposition --- */
.value-layout {
    display: grid;
    grid-template-columns: 1.2fr 1fr;
    gap: 60px;
    align-items: center;
}

.value-text .section-tag {
    margin-bottom: 20px;
}

.value-text .section-title {
    text-align: left;
    margin-bottom: 32px;
    font-size: 1.9rem;
}

.value-compare {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.compare-item {
    padding: 24px;
    border-radius: var(--card-radius-sm);
    border: 1px solid var(--border-color);
}

.compare-old {
    background: rgba(100, 116, 139, 0.05);
    opacity: 0.7;
}

.compare-new {
    background: linear-gradient(135deg, rgba(59, 130, 246, 0.12) 0%, rgba(6, 182, 212, 0.06) 100%);
    border-color: rgba(59, 130, 246, 0.3);
}

.compare-item h4 {
    font-size: 1rem;
    margin-bottom: 10px;
}

.compare-old h4 { color: var(--text-muted); }
.compare-new h4 { color: var(--accent-secondary); }

.compare-flow {
    font-size: 0.9rem;
    color: var(--text-secondary);
    margin-bottom: 8px;
    font-weight: 500;
}

.compare-item p {
    font-size: 0.85rem;
    color: var(--text-muted);
}

/* Value Visual - Ring */
.value-visual {
    display: flex;
    justify-content: center;
    align-items: center;
}

.visual-ring {
    position: relative;
    width: 340px;
    height: 340px;
}

.ring-item {
    position: absolute;
    padding: 12px 20px;
    background: var(--bg-card);
    border: 1px solid var(--border-hover);
    border-radius: 100px;
    font-size: 0.85rem;
    font-weight: 600;
    white-space: nowrap;
    box-shadow: var(--shadow-md);
}

.ring-1 { top: 0; left: 50%; transform: translateX(-50%); animation: ringFloat 6s ease-in-out infinite; }
.ring-2 { top: 50%; right: 0; transform: translateY(-50%); animation: ringFloat 6s ease-in-out infinite 1.5s; }
.ring-3 { bottom: 0; left: 50%; transform: translateX(-50%); animation: ringFloat 6s ease-in-out infinite 3s; }
.ring-4 { top: 50%; left: 0; transform: translateY(-50%); animation: ringFloat 6s ease-in-out infinite 4.5s; }

@keyframes ringFloat {
    0%, 100% { transform: translate(var(--tx, 0), var(--ty, 0)); }
    50% { transform: translate(calc(var(--tx, 0) + 5px), calc(var(--ty, 0) - 5px)); }
}

.ring-1 { --tx: -50%; }
.ring-2 { --ty: -50%; }
.ring-3 { --tx: -50%; }
.ring-4 { --ty: -50%; }

.ring-center {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 140px;
    height: 140px;
    background: var(--accent-gradient);
    border-radius: 50%;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    font-size: 1.1rem;
    font-weight: 800;
    color: #fff;
    text-align: center;
    line-height: 1.4;
    box-shadow: 0 0 60px rgba(59, 130, 246, 0.4);
    animation: ringPulse 3s ease-in-out infinite;
}

@keyframes ringPulse {
    0%, 100% { box-shadow: 0 0 60px rgba(59, 130, 246, 0.4); }
    50% { box-shadow: 0 0 80px rgba(59, 130, 246, 0.6); }
}

/* --- Social Roles --- */
.roles-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
}

.role-card {
    padding: 32px 28px;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--card-radius);
    transition: all var(--transition-base);
    position: relative;
    overflow: hidden;
}

.role-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: var(--accent-gradient);
    transform: scaleX(0);
    transform-origin: left;
    transition: transform var(--transition-base);
}

.role-card:hover::before {
    transform: scaleX(1);
}

.role-card:hover {
    transform: translateY(-4px);
    border-color: var(--border-hover);
    background: var(--bg-card-hover);
}

.role-num {
    font-size: 2rem;
    font-weight: 800;
    background: var(--accent-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 12px;
}

.role-card h3 {
    font-size: 1.15rem;
    margin-bottom: 10px;
}

.role-card p {
    font-size: 0.88rem;
    color: var(--text-secondary);
    line-height: 1.7;
}

.role-wide {
    grid-column: span 2;
}

/* --- Content Matrix --- */
.matrix-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
    margin-bottom: 80px;
}

.matrix-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--card-radius);
    overflow: hidden;
    transition: all var(--transition-base);
}

.matrix-card:hover {
    transform: translateY(-6px);
    border-color: var(--border-hover);
    box-shadow: var(--shadow-glow);
}

.matrix-header {
    padding: 28px 24px 20px;
    border-bottom: 1px solid var(--border-color);
    background: linear-gradient(180deg, rgba(59, 130, 246, 0.08) 0%, transparent 100%);
}

.matrix-label {
    font-size: 0.7rem;
    font-weight: 700;
    letter-spacing: 2px;
    color: var(--accent-secondary);
    display: block;
    margin-bottom: 8px;
}

.matrix-header h3 {
    font-size: 1.2rem;
}

.matrix-list {
    padding: 20px 24px 28px;
}

.matrix-list li {
    padding: 8px 0;
    font-size: 0.9rem;
    color: var(--text-secondary);
    border-bottom: 1px solid rgba(255, 255, 255, 0.04);
}

.matrix-list li:last-child {
    border-bottom: none;
}

/* Platform Section */
.platform-section {
    text-align: center;
    padding: 48px;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--card-radius);
}

.platform-title {
    font-size: 1.4rem;
    margin-bottom: 36px;
}

.platform-logos {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
    margin-bottom: 28px;
}

.platform-item {
    padding: 24px 16px;
    background: var(--bg-primary);
    border: 1px solid var(--border-color);
    border-radius: var(--card-radius-sm);
    transition: all var(--transition-base);
}

.platform-item:hover {
    border-color: var(--border-hover);
    transform: translateY(-3px);
}

.platform-name {
    display: block;
    font-size: 1.05rem;
    font-weight: 700;
    margin-bottom: 6px;
    color: var(--text-primary);
}

.platform-desc {
    font-size: 0.8rem;
    color: var(--text-muted);
}

.platform-note {
    font-size: 0.9rem;
    color: var(--text-secondary);
    max-width: 600px;
    margin: 0 auto;
}

/* --- Workflow --- */
.workflow-steps {
    display: flex;
    align-items: flex-start;
    justify-content: center;
    gap: 0;
    margin-bottom: 40px;
    flex-wrap: wrap;
}

.workflow-step {
    text-align: center;
    flex: 1;
    min-width: 140px;
    max-width: 180px;
    padding: 0 8px;
}

.step-circle {
    width: 56px;
    height: 56px;
    margin: 0 auto 16px;
    background: var(--bg-card);
    border: 2px solid var(--accent-primary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1rem;
    font-weight: 800;
    color: var(--accent-primary);
    transition: all var(--transition-base);
}

.workflow-step:hover .step-circle {
    background: var(--accent-gradient);
    color: #fff;
    transform: scale(1.1);
    box-shadow: 0 0 30px rgba(59, 130, 246, 0.4);
}

.workflow-step h3 {
    font-size: 1.05rem;
    margin-bottom: 8px;
}

.workflow-step p {
    font-size: 0.8rem;
    color: var(--text-secondary);
    line-height: 1.6;
}

.step-connector {
    flex: 0 0 30px;
    height: 2px;
    background: linear-gradient(90deg, var(--accent-primary), var(--accent-secondary));
    margin-top: 28px;
    align-self: flex-start;
    min-width: 20px;
}

.workflow-note {
    text-align: center;
    padding: 20px 32px;
    background: rgba(59, 130, 246, 0.08);
    border: 1px solid rgba(59, 130, 246, 0.2);
    border-radius: 100px;
    font-size: 0.95rem;
    color: var(--accent-secondary);
    max-width: 700px;
    margin: 0 auto;
}

/* --- AI Production --- */
.ai-grid {
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    gap: 20px;
    margin-bottom: 48px;
}

.ai-card {
    padding: 28px 20px;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--card-radius);
    text-align: center;
    transition: all var(--transition-base);
}

.ai-card:hover {
    transform: translateY(-4px);
    border-color: var(--accent-gold);
    box-shadow: 0 0 30px rgba(245, 158, 11, 0.15);
}

.ai-icon {
    font-size: 2rem;
    margin-bottom: 12px;
}

.ai-card h3 {
    font-size: 1.05rem;
    margin-bottom: 8px;
}

.ai-card p {
    font-size: 0.82rem;
    color: var(--text-secondary);
}

.ai-principle {
    display: flex;
    justify-content: center;
    gap: 40px;
    flex-wrap: wrap;
    padding: 32px;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--card-radius);
}

.principle-item {
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: 0.95rem;
    font-weight: 500;
    color: var(--text-primary);
}

.principle-icon {
    font-size: 1.3rem;
}

/* --- Capabilities --- */
.cap-grid {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 24px;
    margin-bottom: 40px;
    flex-wrap: wrap;
}

.cap-card {
    flex: 1;
    min-width: 240px;
    max-width: 320px;
    padding: 36px 28px;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--card-radius);
    text-align: center;
    transition: all var(--transition-base);
}

.cap-card:hover {
    transform: translateY(-6px);
    border-color: var(--border-hover);
    box-shadow: var(--shadow-glow);
}

.cap-icon {
    font-size: 2.5rem;
    margin-bottom: 16px;
}

.cap-card h3 {
    font-size: 1.2rem;
    margin-bottom: 10px;
}

.cap-card p {
    font-size: 0.88rem;
    color: var(--text-secondary);
    line-height: 1.7;
}

.cap-multiply {
    font-size: 2rem;
    font-weight: 300;
    color: var(--accent-secondary);
}

.cap-result {
    text-align: center;
    padding: 24px 40px;
    background: var(--accent-gradient);
    border-radius: 100px;
    font-size: 1.05rem;
    font-weight: 700;
    color: #fff;
    max-width: 700px;
    margin: 0 auto;
    box-shadow: 0 8px 30px rgba(59, 130, 246, 0.3);
}

/* --- Pricing --- */
.pricing-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 28px;
    align-items: stretch;
}

.pricing-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--card-radius);
    padding: 40px 32px;
    display: flex;
    flex-direction: column;
    position: relative;
    transition: all var(--transition-base);
}

.pricing-card:hover {
    transform: translateY(-6px);
    border-color: var(--border-hover);
}

.pricing-featured {
    border-color: var(--accent-primary);
    background: linear-gradient(180deg, rgba(59, 130, 246, 0.1) 0%, var(--bg-card) 30%);
    box-shadow: var(--shadow-glow);
    transform: scale(1.03);
}

.pricing-featured:hover {
    transform: scale(1.03) translateY(-6px);
}

.pricing-badge {
    position: absolute;
    top: -12px;
    left: 50%;
    transform: translateX(-50%);
    padding: 6px 20px;
    background: var(--accent-gradient);
    color: #fff;
    font-size: 0.8rem;
    font-weight: 700;
    border-radius: 100px;
    letter-spacing: 1px;
}

.pricing-header {
    text-align: center;
    margin-bottom: 28px;
    padding-bottom: 24px;
    border-bottom: 1px solid var(--border-color);
}

.pricing-header h3 {
    font-size: 1.3rem;
    margin-bottom: 16px;
}

.pricing-price {
    display: flex;
    align-items: baseline;
    justify-content: center;
    margin-bottom: 12px;
}

.price-currency {
    font-size: 1.2rem;
    font-weight: 600;
    color: var(--text-secondary);
    margin-right: 4px;
}

.price-num {
    font-size: 2.5rem;
    font-weight: 800;
    background: var(--accent-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    line-height: 1;
}

.price-unit {
    font-size: 0.9rem;
    color: var(--text-muted);
    margin-left: 4px;
}

.pricing-tagline {
    font-size: 0.88rem;
    color: var(--text-secondary);
}

.pricing-features {
    flex: 1;
    margin-bottom: 28px;
}

.pricing-features li {
    padding: 10px 0;
    font-size: 0.9rem;
    color: var(--text-secondary);
    border-bottom: 1px solid rgba(255, 255, 255, 0.04);
    display: flex;
    align-items: flex-start;
    gap: 8px;
}

.pricing-features li::before {
    content: '✓';
    color: var(--success);
    font-weight: 700;
    flex-shrink: 0;
}

.pricing-features li.feature-main {
    font-size: 0.95rem;
    font-weight: 600;
    color: var(--text-primary);
}

.pricing-features li.feature-sub {
    font-size: 0.8rem;
    color: var(--text-muted);
    padding-left: 20px;
}

.btn-pricing {
    width: 100%;
    border: 1.5px solid var(--border-hover);
    color: var(--text-primary);
    background: transparent;
}

.btn-pricing:hover {
    background: rgba(59, 130, 246, 0.1);
    border-color: var(--accent-primary);
}

.btn-pricing.btn-primary {
    border: none;
}

.pricing-note {
    text-align: center;
    margin-top: 32px;
    font-size: 0.85rem;
    color: var(--text-muted);
}

/* --- Service Scope --- */
.scope-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}

.scope-card {
    padding: 32px 28px;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--card-radius);
    transition: all var(--transition-base);
}

.scope-card:hover {
    border-color: var(--border-hover);
    transform: translateY(-4px);
}

.scope-card h3 {
    font-size: 1.1rem;
    margin-bottom: 20px;
    padding-bottom: 12px;
    border-bottom: 1px solid var(--border-color);
}

.scope-card ul li {
    padding: 8px 0;
    font-size: 0.9rem;
    color: var(--text-secondary);
    border-bottom: 1px solid rgba(255, 255, 255, 0.03);
}

.scope-card ul li:last-child {
    border-bottom: none;
}

.scope-include h3 { color: var(--success); }
.scope-provide h3 { color: var(--accent-secondary); }
.scope-extra h3 { color: var(--accent-gold); }

/* --- Contact --- */
.contact-layout {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: start;
}

.contact-info .section-tag {
    margin-bottom: 20px;
}

.contact-info .section-title {
    text-align: left;
    font-size: 1.9rem;
    margin-bottom: 20px;
}

.contact-desc {
    font-size: 1rem;
    color: var(--text-secondary);
    margin-bottom: 36px;
    line-height: 1.8;
}

.contact-methods {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.contact-method {
    display: flex;
    align-items: center;
    gap: 16px;
    padding: 16px 20px;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--card-radius-sm);
    transition: all var(--transition-base);
}

.contact-method:hover {
    border-color: var(--border-hover);
    transform: translateX(4px);
}

.method-icon {
    font-size: 1.4rem;
}

.method-label {
    font-size: 0.78rem;
    color: var(--text-muted);
    margin-bottom: 2px;
}

.method-value {
    font-size: 0.92rem;
    font-weight: 500;
    color: var(--text-primary);
}

/* Contact Form */
.contact-form-wrap {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--card-radius);
    padding: 36px;
}

.contact-form .form-group {
    margin-bottom: 20px;
}

.contact-form label {
    display: block;
    font-size: 0.88rem;
    font-weight: 500;
    color: var(--text-secondary);
    margin-bottom: 8px;
}

.contact-form input,
.contact-form select,
.contact-form textarea {
    width: 100%;
    padding: 12px 16px;
    background: var(--bg-primary);
    border: 1px solid var(--border-color);
    border-radius: var(--card-radius-sm);
    color: var(--text-primary);
    font-size: 0.92rem;
    transition: all var(--transition-fast);
    outline: none;
}

.contact-form input:focus,
.contact-form select:focus,
.contact-form textarea:focus {
    border-color: var(--accent-primary);
    box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.15);
}

.contact-form input::placeholder,
.contact-form textarea::placeholder {
    color: var(--text-muted);
}

.contact-form select {
    cursor: pointer;
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath fill='%2394a3b8' d='M6 8L1 3h10z'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 16px center;
    padding-right: 40px;
}

.contact-form select option {
    background: var(--bg-secondary);
    color: var(--text-primary);
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
}

.form-privacy {
    text-align: center;
    margin-top: 16px;
    font-size: 0.78rem;
    color: var(--text-muted);
}

/* --- Footer --- */
.footer {
    background: var(--bg-secondary);
    border-top: 1px solid var(--border-color);
    padding: 60px 0 24px;
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: 40px;
    margin-bottom: 40px;
}

.footer-logo {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 16px;
}

.footer-desc {
    font-size: 0.88rem;
    color: var(--text-secondary);
    line-height: 1.8;
}

.footer-links h4 {
    font-size: 0.95rem;
    margin-bottom: 16px;
    color: var(--text-primary);
}

.footer-links ul li {
    margin-bottom: 10px;
}

.footer-links ul li a {
    font-size: 0.88rem;
    color: var(--text-secondary);
    transition: color var(--transition-fast);
}

.footer-links ul li a:hover {
    color: var(--accent-secondary);
}

.footer-bottom {
    padding-top: 24px;
    border-top: 1px solid var(--border-color);
    text-align: center;
}

.footer-bottom p {
    font-size: 0.82rem;
    color: var(--text-muted);
}

/* --- Back to Top --- */
.back-to-top {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 48px;
    height: 48px;
    background: var(--accent-gradient);
    color: #fff;
    border-radius: 50%;
    font-size: 1.2rem;
    font-weight: 700;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: var(--shadow-md);
    opacity: 0;
    visibility: hidden;
    transform: translateY(20px);
    transition: all var(--transition-base);
    z-index: 999;
}

.back-to-top.visible {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.back-to-top:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 25px rgba(59, 130, 246, 0.4);
}

/* --- Scroll Animations --- */
.reveal {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.7s ease, transform 0.7s ease;
}

.reveal.active {
    opacity: 1;
    transform: translateY(0);
}

/* ============================================
   Responsive Design
   ============================================ */

@media (max-width: 1024px) {
    .assets-grid,
    .roles-grid,
    .matrix-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .role-wide {
        grid-column: span 2;
    }

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

    .pricing-grid {
        grid-template-columns: 1fr;
        max-width: 480px;
        margin: 0 auto;
    }

    .pricing-featured {
        transform: none;
    }

    .pricing-featured:hover {
        transform: translateY(-6px);
    }

    .value-layout,
    .contact-layout {
        grid-template-columns: 1fr;
        gap: 40px;
    }

    .value-text .section-title,
    .contact-info .section-title {
        text-align: center;
    }

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

@media (max-width: 768px) {
    :root {
        --section-padding: 60px 0;
    }

    .section-title {
        font-size: 1.6rem;
    }

    .hero-title {
        font-size: 2.2rem;
    }

    .hero-subtitle {
        font-size: 1rem;
    }

    .hero-stats {
        gap: 32px;
    }

    .nav-menu {
        position: fixed;
        top: 0;
        right: -100%;
        width: 280px;
        height: 100vh;
        background: var(--bg-secondary);
        border-left: 1px solid var(--border-color);
        flex-direction: column;
        padding: 80px 32px 32px;
        gap: 24px;
        transition: right var(--transition-base);
        box-shadow: var(--shadow-lg);
    }

    .nav-menu.active {
        right: 0;
    }

    .nav-toggle {
        display: flex;
        z-index: 1001;
    }

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

    .shift-arrow {
        transform: rotate(90deg);
        justify-content: center;
        padding: 10px 0;
    }

    .assets-grid,
    .roles-grid,
    .matrix-grid,
    .scope-grid,
    .platform-logos {
        grid-template-columns: 1fr;
    }

    .role-wide {
        grid-column: span 1;
    }

    .ai-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .workflow-steps {
        flex-direction: column;
        align-items: center;
    }

    .step-connector {
        width: 2px;
        height: 30px;
        flex: 0 0 30px;
        margin: 0;
        background: linear-gradient(180deg, var(--accent-primary), var(--accent-secondary));
    }

    .cap-grid {
        flex-direction: column;
    }

    .cap-multiply {
        transform: rotate(90deg);
    }

    .form-row {
        grid-template-columns: 1fr;
    }

    .footer-grid {
        grid-template-columns: 1fr;
        gap: 32px;
    }

    .visual-ring {
        width: 280px;
        height: 280px;
    }

    .ring-center {
        width: 110px;
        height: 110px;
        font-size: 0.95rem;
    }

    .ai-principle {
        flex-direction: column;
        gap: 16px;
        align-items: flex-start;
    }

    .contact-form-wrap {
        padding: 24px;
    }
}

@media (max-width: 480px) {
    .hero-title {
        font-size: 1.8rem;
    }

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

    .btn {
        width: 100%;
    }

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

    .stat-num {
        font-size: 1.6rem;
    }
}