/* ================================================
   PT SINOCONT SMART TRADE — Premium Dark + Gold
   ================================================ */

:root {
    --bg-primary: #0a0a0a;
    --bg-secondary: #111111;
    --bg-card: #161616;
    --bg-card-hover: #1a1a1a;
    --gold: #c9a84c;
    --gold-light: #e8d48b;
    --gold-dark: #a07c2a;
    --gold-glow: rgba(201, 168, 76, 0.15);
    --gold-glow-strong: rgba(201, 168, 76, 0.3);
    --text-primary: #f5f5f5;
    --text-secondary: #999999;
    --text-muted: #777777;
    --border: rgba(255, 255, 255, 0.06);
    --border-gold: rgba(201, 168, 76, 0.2);
    --radius: 16px;
    --radius-sm: 8px;
    --radius-lg: 24px;
    --transition: 0.4s cubic-bezier(0.25, 0.46, 0.45, 0.94);
    --transition-fast: 0.2s ease;
    --font-heading: 'Playfair Display', Georgia, serif;
    --font-body: 'Inter', -apple-system, sans-serif;
}

/* ================================================
   Light Theme Override
   ================================================ */
[data-theme="light"] {
    --bg-primary: #f8f7f4;
    --bg-secondary: #efede8;
    --bg-card: #ffffff;
    --bg-card-hover: #f5f4f0;
    --gold: #b8942e;
    --gold-light: #d4b94e;
    --gold-dark: #8a6e1e;
    --gold-glow: rgba(184, 148, 46, 0.1);
    --gold-glow-strong: rgba(184, 148, 46, 0.2);
    --text-primary: #1a1a1a;
    --text-secondary: #555555;
    --text-muted: #888888;
    --border: rgba(0, 0, 0, 0.08);
    --border-gold: rgba(184, 148, 46, 0.25);
}
[data-theme="light"] .hero-gradient {
    background:
        radial-gradient(ellipse at 20% 50%, rgba(184, 148, 46, 0.06) 0%, transparent 60%),
        radial-gradient(ellipse at 80% 20%, rgba(184, 148, 46, 0.04) 0%, transparent 50%),
        radial-gradient(ellipse at 50% 100%, rgba(248, 247, 244, 1) 0%, transparent 50%);
}
[data-theme="light"] .navbar.scrolled {
    background: rgba(248, 247, 244, 0.9);
}
[data-theme="light"] .preloader {
    background: var(--bg-primary);
}
[data-theme="light"] .cursor-glow {
    background: radial-gradient(circle, rgba(184, 148, 46, 0.08) 0%, transparent 70%);
}
[data-theme="light"] .service-card-overlay {
    background: linear-gradient(to top, rgba(255,255,255,0.9), transparent 60%);
}
[data-theme="light"] .service-modal-backdrop {
    background: rgba(255,255,255,0.8);
}
[data-theme="light"] .footer-glow {
    background: radial-gradient(ellipse, rgba(184, 148, 46, 0.08) 0%, transparent 70%);
}

/* Reset */
*, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 80px; }
body {
    font-family: var(--font-body);
    background: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.7;
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
}
a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }
button { cursor: pointer; border: none; background: none; font-family: inherit; color: inherit; }

/* ================================================
   Cursor Glow
   ================================================ */
.cursor-glow {
    position: fixed;
    width: 600px;
    height: 600px;
    border-radius: 50%;
    background: radial-gradient(circle, var(--gold-glow) 0%, transparent 70%);
    pointer-events: none;
    z-index: 9999;
    transform: translate(-50%, -50%);
    opacity: 0;
    transition: opacity 0.3s;
}
.cursor-glow.active { opacity: 1; }

/* ================================================
   Preloader
   ================================================ */
.preloader {
    position: fixed;
    inset: 0;
    background: var(--bg-primary);
    z-index: 10000;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: opacity 0.6s, visibility 0.6s;
}
.preloader.hidden { opacity: 0; visibility: hidden; }
.preloader-inner { text-align: center; }
.preloader-logo {
    font-family: var(--font-heading);
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--gold);
    letter-spacing: 0.15em;
    margin-bottom: 2rem;
}
.preloader-bar {
    width: 200px;
    height: 2px;
    background: var(--border);
    border-radius: 2px;
    overflow: hidden;
}
.preloader-bar-fill {
    width: 0;
    height: 100%;
    background: linear-gradient(90deg, var(--gold-dark), var(--gold), var(--gold-light));
    border-radius: 2px;
    animation: preloaderFill 1.5s ease forwards;
}
@keyframes preloaderFill {
    to { width: 100%; }
}

/* ================================================
   Reveal Animations
   ================================================ */
.reveal {
    opacity: 0;
    transform: translateY(40px);
    transition: opacity 0.8s cubic-bezier(0.25, 0.46, 0.45, 0.94),
                transform 0.8s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}
.reveal.visible {
    opacity: 1;
    transform: translateY(0);
}

/* ================================================
   Container
   ================================================ */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
}

/* ================================================
   Typography
   ================================================ */
.gold { color: var(--gold); }
.section-tag {
    display: inline-block;
    font-size: 0.75rem;
    font-weight: 600;
    letter-spacing: 0.2em;
    text-transform: uppercase;
    color: var(--gold);
    padding: 6px 16px;
    border: 1px solid var(--border-gold);
    border-radius: 100px;
    margin-bottom: 1.5rem;
}
.section-title {
    font-family: var(--font-heading);
    font-size: clamp(2rem, 4vw, 3rem);
    font-weight: 600;
    line-height: 1.2;
    margin-bottom: 1rem;
}
.section-desc {
    font-size: 1.1rem;
    color: var(--text-secondary);
    max-width: 600px;
    margin: 0 auto;
}
.section-header {
    text-align: center;
    margin-bottom: 4rem;
}
.section {
    padding: 120px 0;
    position: relative;
}

/* ================================================
   Buttons
   ================================================ */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 14px 32px;
    border-radius: 100px;
    font-size: 0.95rem;
    font-weight: 600;
    transition: var(--transition);
    position: relative;
    overflow: hidden;
}
.btn-primary {
    background: linear-gradient(135deg, var(--gold-dark), var(--gold));
    color: #0a0a0a;
}
.btn-primary::before {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, var(--gold), var(--gold-light));
    opacity: 0;
    transition: opacity var(--transition);
}
.btn-primary:hover::before { opacity: 1; }
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 8px 30px var(--gold-glow-strong); }
.btn-primary span, .btn-primary svg { position: relative; z-index: 1; }
.btn-outline {
    border: 1px solid var(--border-gold);
    color: var(--gold);
}
.btn-outline:hover {
    background: var(--gold-glow);
    border-color: var(--gold);
    transform: translateY(-2px);
}
.btn-full { width: 100%; justify-content: center; }

/* ================================================
   Navbar
   ================================================ */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    padding: 20px 0;
    transition: var(--transition);
}
.navbar.scrolled {
    background: rgba(10, 10, 10, 0.85);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--border);
    padding: 12px 0;
}
.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
    display: flex;
    align-items: center;
    justify-content: space-between;
}
.nav-logo {
    display: flex;
    align-items: center;
    gap: 4px;
}
.logo-text {
    font-family: var(--font-heading);
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--gold);
    letter-spacing: 0.1em;
}
.logo-dot {
    width: 6px;
    height: 6px;
    background: var(--gold);
    border-radius: 50%;
    margin-top: -12px;
}
.nav-links {
    display: flex;
    align-items: center;
    gap: 32px;
}
.nav-link {
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--text-secondary);
    transition: var(--transition-fast);
    position: relative;
}
.nav-link::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 1px;
    background: var(--gold);
    transition: width var(--transition);
}
.nav-link:hover { color: var(--text-primary); }
.nav-link:hover::after { width: 100%; }
.nav-btn {
    font-size: 0.875rem;
    font-weight: 600;
    color: #0a0a0a;
    background: linear-gradient(135deg, var(--gold-dark), var(--gold));
    padding: 10px 24px;
    border-radius: 100px;
    transition: var(--transition);
}
.nav-btn:hover { box-shadow: 0 4px 20px var(--gold-glow-strong); transform: translateY(-1px); }

/* Nav Controls (lang + theme) */
.nav-controls {
    display: flex;
    align-items: center;
    gap: 12px;
}
.lang-switcher {
    display: flex;
    align-items: center;
    gap: 4px;
    font-size: 0.8rem;
    font-weight: 600;
}
.lang-btn {
    padding: 4px 8px;
    border-radius: 6px;
    color: var(--text-muted);
    font-size: 0.8rem;
    font-weight: 600;
    letter-spacing: 0.05em;
    transition: var(--transition-fast);
}
.lang-btn.active { color: var(--gold); }
.lang-btn:hover { color: var(--text-primary); }
.lang-sep { color: var(--border); font-weight: 300; }
.theme-toggle {
    width: 36px;
    height: 36px;
    border-radius: 50%;
    border: 1px solid var(--border);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-secondary);
    transition: var(--transition);
}
.theme-toggle:hover { border-color: var(--gold); color: var(--gold); }
.theme-icon--moon { display: none; }
[data-theme="dark"] .theme-icon--sun { display: none; }
[data-theme="dark"] .theme-icon--moon { display: block; }
[data-theme="light"] .theme-icon--sun { display: block; }
[data-theme="light"] .theme-icon--moon { display: none; }

/* Mobile toggle */
.nav-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    padding: 4px;
}
.nav-toggle span {
    display: block;
    width: 24px;
    height: 2px;
    background: var(--text-primary);
    transition: var(--transition);
    border-radius: 2px;
}
.nav-toggle.active span:nth-child(1) { transform: rotate(45deg) translate(5px, 5px); }
.nav-toggle.active span:nth-child(2) { opacity: 0; }
.nav-toggle.active span:nth-child(3) { transform: rotate(-45deg) translate(5px, -5px); }

/* ================================================
   Hero
   ================================================ */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    overflow: hidden;
    padding: 120px 24px 80px;
}
.hero-bg {
    position: absolute;
    inset: 0;
    z-index: 0;
}
.hero-gradient {
    position: absolute;
    inset: 0;
    background:
        radial-gradient(ellipse at 20% 50%, rgba(201, 168, 76, 0.08) 0%, transparent 60%),
        radial-gradient(ellipse at 80% 20%, rgba(201, 168, 76, 0.05) 0%, transparent 50%),
        radial-gradient(ellipse at 50% 100%, rgba(10, 10, 10, 1) 0%, transparent 50%);
}
.hero-particles {
    position: absolute;
    inset: 0;
}
.hero-particles .particle {
    position: absolute;
    width: 2px;
    height: 2px;
    background: var(--gold);
    border-radius: 50%;
    opacity: 0;
    animation: particleFloat 6s infinite;
}
@keyframes particleFloat {
    0% { opacity: 0; transform: translateY(0) scale(0); }
    20% { opacity: 0.6; }
    100% { opacity: 0; transform: translateY(-200px) scale(1); }
}
.hero-content {
    text-align: center;
    position: relative;
    z-index: 1;
    max-width: 800px;
}
.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    font-size: 0.8rem;
    font-weight: 600;
    letter-spacing: 0.15em;
    text-transform: uppercase;
    color: var(--gold);
    padding: 8px 20px;
    border: 1px solid var(--border-gold);
    border-radius: 100px;
    margin-bottom: 2rem;
    background: rgba(201, 168, 76, 0.05);
}
.badge-dot {
    width: 8px;
    height: 8px;
    background: var(--gold);
    border-radius: 50%;
    animation: badgePulse 2s infinite;
}
@keyframes badgePulse {
    0%, 100% { opacity: 1; box-shadow: 0 0 0 0 var(--gold-glow-strong); }
    50% { opacity: 0.7; box-shadow: 0 0 0 8px transparent; }
}
.hero-title {
    font-family: var(--font-heading);
    font-size: clamp(2.5rem, 6vw, 4.5rem);
    font-weight: 700;
    line-height: 1.15;
    margin-bottom: 1.5rem;
    letter-spacing: -0.01em;
}
.hero-typed-wrapper { color: var(--gold); }
.typed-cursor {
    color: var(--gold);
    animation: cursorBlink 0.8s infinite;
    font-weight: 300;
}
@keyframes cursorBlink {
    0%, 50% { opacity: 1; }
    51%, 100% { opacity: 0; }
}
.hero-subtitle {
    font-size: 1.2rem;
    color: var(--text-secondary);
    max-width: 560px;
    margin: 0 auto 2.5rem;
    line-height: 1.8;
}
.hero-actions {
    display: flex;
    gap: 16px;
    justify-content: center;
    flex-wrap: wrap;
    margin-bottom: 4rem;
}
.hero-stats {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 40px;
}
.hero-stat { text-align: center; }
.stat-number {
    display: block;
    font-family: var(--font-heading);
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--gold);
    line-height: 1;
}
.stat-plus {
    font-family: var(--font-heading);
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--gold);
}
.stat-label {
    font-size: 0.8rem;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.1em;
    margin-top: 4px;
    display: block;
}
.hero-stat-divider {
    width: 1px;
    height: 40px;
    background: var(--border);
}
.hero-scroll-indicator {
    position: absolute;
    bottom: 40px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
    color: var(--text-muted);
    font-size: 0.7rem;
    letter-spacing: 0.15em;
    text-transform: uppercase;
}
.scroll-line {
    width: 1px;
    height: 40px;
    background: linear-gradient(to bottom, var(--gold), transparent);
    animation: scrollPulse 2s infinite;
}
@keyframes scrollPulse {
    0% { transform: scaleY(1); opacity: 1; }
    50% { transform: scaleY(0.5); opacity: 0.3; }
    100% { transform: scaleY(1); opacity: 1; }
}

/* ================================================
   About Cards
   ================================================ */
.about-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
}
.about-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 32px 24px;
    text-align: center;
    transition: var(--transition);
    position: relative;
    overflow: hidden;
}
.about-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 2px;
    background: linear-gradient(90deg, transparent, var(--gold), transparent);
    opacity: 0;
    transition: opacity var(--transition);
}
.about-card:hover {
    border-color: var(--border-gold);
    transform: translateY(-4px);
    box-shadow: 0 20px 60px rgba(0,0,0,0.3);
}
.about-card:hover::before { opacity: 1; }
.about-card-icon {
    width: 64px;
    height: 64px;
    margin: 0 auto 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 16px;
    background: var(--gold-glow);
    color: var(--gold);
    transition: var(--transition);
}
.about-card:hover .about-card-icon {
    background: linear-gradient(135deg, var(--gold-dark), var(--gold));
    color: #0a0a0a;
    box-shadow: 0 8px 30px var(--gold-glow-strong);
}
.about-card h3 {
    font-family: var(--font-heading);
    font-size: 1.15rem;
    margin-bottom: 10px;
}
.about-card p {
    font-size: 0.9rem;
    color: var(--text-secondary);
    line-height: 1.6;
}

/* ================================================
   Services
   ================================================ */
.services { background: var(--bg-secondary); }
.services-grid {
    display: grid;
    grid-template-columns: repeat(6, 1fr);
    gap: 24px;
}
.services-grid .service-card:nth-child(1) { grid-column: 1 / 3; }
.services-grid .service-card:nth-child(2) { grid-column: 3 / 5; }
.services-grid .service-card:nth-child(3) { grid-column: 5 / 7; }
.services-grid .service-card:nth-child(4) { grid-column: 2 / 4; }
.services-grid .service-card:nth-child(5) { grid-column: 4 / 6; }
.service-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    overflow: hidden;
    transition: var(--transition);
    cursor: pointer;
    position: relative;
}
.service-card:hover {
    border-color: var(--border-gold);
    transform: translateY(-6px);
    box-shadow: 0 30px 80px rgba(0,0,0,0.4);
}
.service-card-image {
    position: relative;
    height: 220px;
    overflow: hidden;
    background: linear-gradient(135deg, #1a1a1a, #222);
}
.service-card-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.6s ease;
}
.service-card:hover .service-card-image img { transform: scale(1.05); }
.service-card-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(to top, rgba(10,10,10,0.8), transparent 60%);
    display: flex;
    align-items: flex-end;
    justify-content: flex-end;
    padding: 20px;
    opacity: 0;
    transition: opacity var(--transition);
}
.service-card:hover .service-card-overlay { opacity: 1; }
.service-explore {
    display: flex;
    align-items: center;
    gap: 6px;
    font-size: 0.8rem;
    font-weight: 600;
    color: var(--gold);
    letter-spacing: 0.1em;
    text-transform: uppercase;
}
.service-card-tap {
    display: none;
    font-size: 0.7rem;
    color: var(--gold);
    text-transform: uppercase;
    letter-spacing: 0.1em;
    text-align: center;
    padding: 8px 0 0;
    opacity: 0.5;
}
@media (hover: none) {
    .service-card-tap { display: block; }
    .service-card-overlay { opacity: 1; }
}
.service-card-body { padding: 24px; }
.service-number {
    font-family: var(--font-heading);
    font-size: 0.8rem;
    color: var(--gold);
    font-weight: 600;
    letter-spacing: 0.1em;
    margin-bottom: 8px;
}
.service-card-body h3 {
    font-family: var(--font-heading);
    font-size: 1.2rem;
    margin-bottom: 8px;
    transition: color var(--transition-fast);
}
.service-card:hover .service-card-body h3 { color: var(--gold); }
.service-card-body p {
    font-size: 0.9rem;
    color: var(--text-secondary);
    line-height: 1.6;
}

/* ================================================
   Service Modal
   ================================================ */
.service-modal {
    position: fixed;
    inset: 0;
    z-index: 2000;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.4s, visibility 0.4s;
}
.service-modal.active { opacity: 1; visibility: visible; }
.service-modal-backdrop {
    position: absolute;
    inset: 0;
    background: rgba(0,0,0,0.8);
    backdrop-filter: blur(10px);
}
.service-modal-content {
    position: relative;
    background: var(--bg-card);
    border: 1px solid var(--border-gold);
    border-radius: var(--radius-lg);
    max-width: 700px;
    width: 90%;
    max-height: 80vh;
    overflow-y: auto;
    padding: 48px;
    transform: translateY(30px) scale(0.95);
    transition: transform 0.4s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}
.service-modal.active .service-modal-content { transform: translateY(0) scale(1); }
.service-modal-close {
    position: absolute;
    top: 20px;
    right: 20px;
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    border: 1px solid var(--border);
    color: var(--text-secondary);
    transition: var(--transition);
}
.service-modal-close:hover { border-color: var(--gold); color: var(--gold); }
.service-modal-number {
    font-family: var(--font-heading);
    font-size: 3rem;
    color: var(--gold);
    opacity: 0.3;
    font-weight: 700;
    line-height: 1;
    margin-bottom: 8px;
}
.service-modal-title {
    font-family: var(--font-heading);
    font-size: 1.8rem;
    font-weight: 600;
    margin-bottom: 24px;
    padding-bottom: 24px;
    border-bottom: 1px solid var(--border);
}
.service-modal-body p {
    font-size: 1rem;
    color: var(--text-secondary);
    line-height: 1.8;
    margin-bottom: 16px;
}
.service-modal-body h4 {
    font-family: var(--font-heading);
    font-size: 1.1rem;
    color: var(--text-primary);
    margin: 24px 0 12px;
}
.service-modal-body ul {
    list-style: none;
    padding: 0;
}
.service-modal-body ul li {
    position: relative;
    padding-left: 24px;
    margin-bottom: 10px;
    font-size: 0.95rem;
    color: var(--text-secondary);
    line-height: 1.6;
}
.service-modal-body ul li::before {
    content: '';
    position: absolute;
    left: 0;
    top: 10px;
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--gold);
    opacity: 0.6;
}

/* ================================================
   Process / Timeline
   ================================================ */
.process-timeline {
    position: relative;
    max-width: 700px;
    margin: 0 auto;
}
.process-line {
    position: absolute;
    left: 24px;
    top: 0;
    bottom: 0;
    width: 2px;
    background: var(--border);
}
.process-line-fill {
    width: 100%;
    height: 0;
    background: linear-gradient(to bottom, var(--gold), var(--gold-dark));
    transition: height 0.8s ease;
    border-radius: 2px;
}
.process-step {
    display: flex;
    gap: 32px;
    padding: 0 0 60px;
    position: relative;
}
.process-step:last-child { padding-bottom: 0; }
.process-step-marker {
    flex-shrink: 0;
    width: 50px;
    height: 50px;
    border-radius: 50%;
    background: var(--bg-card);
    border: 2px solid var(--border);
    display: flex;
    align-items: center;
    justify-content: center;
    font-family: var(--font-heading);
    font-size: 1.1rem;
    font-weight: 700;
    color: var(--gold);
    transition: var(--transition);
    position: relative;
    z-index: 1;
}
.process-step.visible .process-step-marker {
    border-color: var(--gold);
    box-shadow: 0 0 30px var(--gold-glow);
}
.process-step-content h3 {
    font-family: var(--font-heading);
    font-size: 1.3rem;
    margin-bottom: 8px;
    margin-top: 4px;
}
.process-step-content p {
    font-size: 0.95rem;
    color: var(--text-secondary);
    line-height: 1.7;
}

/* ================================================
   Coverage
   ================================================ */
.coverage { background: var(--bg-secondary); }
.coverage-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
}
.coverage-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 32px 24px;
    text-align: center;
    transition: var(--transition);
}
.coverage-card:hover {
    border-color: var(--border-gold);
    transform: translateY(-4px);
    box-shadow: 0 20px 60px rgba(0,0,0,0.3);
}
.coverage-flag {
    margin-bottom: 16px;
}
.flag-emoji {
    font-size: 3rem;
    display: block;
    transition: transform var(--transition);
}
.coverage-card:hover .flag-emoji { transform: scale(1.15); }
.coverage-card h3 {
    font-family: var(--font-heading);
    font-size: 1.2rem;
    margin-bottom: 8px;
}
.coverage-card p {
    font-size: 0.9rem;
    color: var(--text-secondary);
    line-height: 1.6;
}
.coverage-card-cta { border-style: dashed; }
.coverage-link {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    margin-top: 12px;
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--gold);
    transition: gap var(--transition);
}
.coverage-link:hover { gap: 10px; }

/* ================================================
   Why SINOCONT
   ================================================ */
.why-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
}
.why-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 36px 24px;
    text-align: center;
    transition: var(--transition);
    position: relative;
    overflow: hidden;
}
.why-card:hover {
    border-color: var(--border-gold);
    transform: translateY(-4px);
    box-shadow: 0 20px 60px rgba(0,0,0,0.3);
}
.why-card-line {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 2px;
    background: linear-gradient(90deg, transparent, var(--gold), transparent);
    opacity: 0;
    transition: opacity var(--transition);
}
.why-card:hover .why-card-line { opacity: 1; }
.why-icon {
    width: 72px;
    height: 72px;
    margin: 0 auto 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 20px;
    background: var(--gold-glow);
    color: var(--gold);
    transition: var(--transition);
}
.why-card:hover .why-icon {
    background: linear-gradient(135deg, var(--gold-dark), var(--gold));
    color: #0a0a0a;
}
.why-card h3 {
    font-family: var(--font-heading);
    font-size: 1.15rem;
    margin-bottom: 10px;
}
.why-card p {
    font-size: 0.9rem;
    color: var(--text-secondary);
    line-height: 1.6;
}

/* ================================================
   FAQ
   ================================================ */
.faq { background: var(--bg-secondary); }
.faq-list {
    max-width: 700px;
    margin: 0 auto;
}
.faq-item {
    border: 1px solid var(--border);
    border-radius: var(--radius);
    margin-bottom: 12px;
    overflow: hidden;
    transition: border-color var(--transition);
}
.faq-item:hover, .faq-item.active { border-color: var(--border-gold); }
.faq-question {
    width: 100%;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 20px 24px;
    font-size: 1rem;
    font-weight: 500;
    text-align: left;
    transition: color var(--transition-fast);
}
.faq-question:hover { color: var(--gold); }
.faq-icon {
    flex-shrink: 0;
    color: var(--gold);
    transition: transform var(--transition);
}
.faq-item.active .faq-icon { transform: rotate(180deg); }
.faq-answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.4s ease, padding 0.4s ease;
}
.faq-item.active .faq-answer {
    max-height: 300px;
}
.faq-answer p {
    padding: 0 24px 20px;
    font-size: 0.95rem;
    color: var(--text-secondary);
    line-height: 1.7;
}

/* ================================================
   Contact
   ================================================ */
.contact-wrapper {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: start;
}
.contact-info .section-title { text-align: left; }
.contact-info .section-tag { }
.contact-info > p {
    color: var(--text-secondary);
    margin-bottom: 2rem;
    line-height: 1.7;
}
.contact-details { display: flex; flex-direction: column; gap: 20px; }
.contact-detail {
    display: flex;
    gap: 16px;
    align-items: flex-start;
}
.contact-detail svg { color: var(--gold); flex-shrink: 0; margin-top: 2px; }
.contact-detail strong {
    display: block;
    font-size: 0.85rem;
    color: var(--text-primary);
    margin-bottom: 4px;
}
.contact-detail span {
    font-size: 0.9rem;
    color: var(--text-secondary);
    line-height: 1.6;
}
.contact-form-wrapper {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 40px;
}
.form-group { margin-bottom: 20px; }
.form-group label {
    display: block;
    font-size: 0.85rem;
    font-weight: 500;
    color: var(--text-secondary);
    margin-bottom: 8px;
}
.form-group input,
.form-group textarea {
    width: 100%;
    padding: 14px 18px;
    background: var(--bg-primary);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    color: var(--text-primary);
    font-family: var(--font-body);
    font-size: 0.95rem;
    transition: border-color var(--transition-fast);
    outline: none;
}
.form-group input::placeholder,
.form-group textarea::placeholder { color: var(--text-muted); }
.form-group input:focus,
.form-group textarea:focus { border-color: var(--gold); }
.form-group textarea { resize: vertical; min-height: 120px; }
.form-status {
    margin-top: 12px;
    font-size: 0.9rem;
    text-align: center;
    min-height: 20px;
}
.form-status--loading { color: var(--text-secondary); }
.form-status--error { color: #e55; }
.form-status--success { color: var(--gold); }
.form-success {
    display: none;
    text-align: center;
    padding: 40px 20px;
    color: var(--gold);
}
.form-success h3 {
    font-family: var(--font-heading);
    font-size: 1.3rem;
    margin: 16px 0 8px;
    color: var(--text-primary);
}
.form-success p {
    color: var(--text-secondary);
}

/* ================================================
   Footer
   ================================================ */
.footer {
    border-top: 1px solid var(--border);
    padding: 60px 0 30px;
    position: relative;
    overflow: hidden;
}
.footer-glow {
    position: absolute;
    top: -100px;
    left: 50%;
    transform: translateX(-50%);
    width: 600px;
    height: 200px;
    background: radial-gradient(ellipse, var(--gold-glow) 0%, transparent 70%);
    pointer-events: none;
}
.footer-top {
    display: flex;
    justify-content: space-between;
    gap: 60px;
    padding-bottom: 40px;
    border-bottom: 1px solid var(--border);
    margin-bottom: 30px;
}
.footer-brand {
    max-width: 300px;
}
.footer-brand .logo-text {
    display: block;
    margin-bottom: 12px;
}
.footer-brand p {
    font-size: 0.9rem;
    color: var(--text-secondary);
    line-height: 1.6;
}
.footer-links {
    display: flex;
    gap: 60px;
}
.footer-col h4 {
    font-size: 0.8rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.15em;
    color: var(--gold);
    margin-bottom: 16px;
}
.footer-col a {
    display: block;
    font-size: 0.9rem;
    color: var(--text-secondary);
    padding: 4px 0;
    transition: color var(--transition-fast);
}
.footer-col a:hover { color: var(--text-primary); }
.footer-bottom {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 16px;
}
.footer-bottom p {
    font-size: 0.8rem;
    color: var(--text-muted);
}

/* ================================================
   Back to Top
   ================================================ */
.back-to-top {
    position: fixed;
    bottom: 32px;
    right: 32px;
    width: 44px;
    height: 44px;
    border-radius: 50%;
    background: var(--bg-card);
    border: 1px solid var(--border-gold);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--gold);
    z-index: 900;
    opacity: 0;
    visibility: hidden;
    transform: translateY(10px);
    transition: var(--transition);
}
.back-to-top.visible {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}
.back-to-top:hover {
    background: linear-gradient(135deg, var(--gold-dark), var(--gold));
    color: #0a0a0a;
    box-shadow: 0 4px 20px var(--gold-glow-strong);
}

/* ================================================
   Responsive
   ================================================ */
@media (max-width: 1024px) {
    .about-grid, .coverage-grid, .why-grid { grid-template-columns: repeat(2, 1fr); }
    .services-grid { grid-template-columns: repeat(2, 1fr); }
    .services-grid .service-card:nth-child(1),
    .services-grid .service-card:nth-child(2),
    .services-grid .service-card:nth-child(3),
    .services-grid .service-card:nth-child(4),
    .services-grid .service-card:nth-child(5) { grid-column: span 1; }
}
@media (max-width: 768px) {
    .section { padding: 80px 0; }
    .nav-links {
        position: fixed;
        top: 0;
        right: -100%;
        width: 300px;
        height: 100vh;
        background: var(--bg-secondary);
        flex-direction: column;
        align-items: flex-start;
        padding: 100px 32px 32px;
        gap: 20px;
        border-left: 1px solid var(--border);
        transition: right var(--transition);
    }
    .nav-links.open { right: 0; }
    .nav-links::before {
        content: '';
        position: fixed;
        inset: 0;
        background: rgba(0,0,0,0.6);
        opacity: 0;
        visibility: hidden;
        transition: opacity 0.3s, visibility 0.3s;
        z-index: -1;
    }
    .nav-links.open::before { opacity: 1; visibility: visible; }
    .nav-toggle { display: flex; }
    .hero-stats { gap: 24px; }
    .about-grid, .coverage-grid, .why-grid { grid-template-columns: 1fr; }
    .services-grid { grid-template-columns: 1fr; }
    .services-grid .service-card:nth-child(1),
    .services-grid .service-card:nth-child(2),
    .services-grid .service-card:nth-child(3),
    .services-grid .service-card:nth-child(4),
    .services-grid .service-card:nth-child(5) { grid-column: span 1; }
    .contact-wrapper { grid-template-columns: 1fr; gap: 40px; }
    .footer-top { flex-direction: column; gap: 32px; }
    .footer-links { flex-wrap: wrap; gap: 32px; }
    .footer-bottom { flex-direction: column; text-align: center; }
    .service-modal-content { padding: 32px 24px; }
    .process-step { gap: 20px; }
}
@media (max-width: 480px) {
    .hero-title { font-size: 2rem; }
    .hero-actions { flex-direction: column; align-items: center; }
    .hero-stats { flex-direction: column; gap: 16px; }
    .hero-stat-divider { width: 40px; height: 1px; }
}