/* ========================================
   涉外纠纷解决方案 | 罗巍律师
   Design System — matches luoweilvshi.com
   ======================================== */

/* --- CSS Variables --- */
:root {
    --color-bg: #fafaf8;
    --color-bg-alt: #f2f0eb;
    --color-surface: #ffffff;
    --color-text: #2c2c2c;
    --color-text-light: #6b6b6b;
    --color-text-muted: #999999;
    --color-primary: #1a1a2e;
    --color-primary-light: #16213e;
    --color-accent: #b8944b;
    --color-accent-light: #d4b96a;
    --color-accent-dim: rgba(184, 148, 75, 0.12);
    --color-accent-dim-strong: rgba(184, 148, 75, 0.25);
    --color-border: #e5e2dc;
    --color-border-light: #f0ede7;
    --color-danger: #c0392b;
    --color-danger-bg: #fdf2f2;

    --font-display: 'Cormorant Garamond', 'Noto Serif SC', Georgia, serif;
    --font-heading: 'Cormorant Garamond', 'Noto Serif SC', Georgia, serif;
    --font-body: 'Inter', 'Noto Sans SC', -apple-system, BlinkMacSystemFont, sans-serif;

    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 2rem;
    --spacing-lg: 4rem;
    --spacing-xl: 6rem;
    --spacing-2xl: 10rem;

    --max-width: 1200px;
    --nav-height: 80px;

    --transition: 0.3s cubic-bezier(0.25, 0.46, 0.45, 0.94);
    --transition-slow: 0.6s cubic-bezier(0.25, 0.46, 0.45, 0.94);
    --transition-bounce: 0.4s cubic-bezier(0.34, 1.56, 0.64, 1);
}

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

html {
    scroll-behavior: smooth;
    font-size: 16px;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body {
    font-family: var(--font-body);
    color: var(--color-text);
    background-color: var(--color-bg);
    line-height: 1.7;
    overflow-x: hidden;
}

::selection {
    background: var(--color-accent-dim);
    color: var(--color-primary);
}

a { text-decoration: none; color: inherit; transition: color var(--transition); }
ul { list-style: none; }
img { max-width: 100%; display: block; }

.container {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

/* --- Typography --- */
h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-heading);
    font-weight: 500;
    line-height: 1.2;
    color: var(--color-primary);
}

h2 {
    font-size: clamp(2rem, 4vw, 2.8rem);
    letter-spacing: 0.02em;
}

h3 {
    font-size: clamp(1.3rem, 2.5vw, 1.6rem);
}

.text-accent { color: var(--color-accent); }

/* --- Section Header --- */
.section-header {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-md);
    padding-bottom: var(--spacing-md);
    border-bottom: 1px solid var(--color-border);
}

.section-number {
    font-family: var(--font-display);
    font-size: 0.9rem;
    color: var(--color-accent);
    letter-spacing: 0.1em;
}

.section-line {
    flex: 1;
    height: 1px;
    background: var(--color-border);
    margin-left: auto;
    max-width: 60px;
}

.section-subtitle {
    color: var(--color-text-light);
    font-size: 1.05rem;
    margin-bottom: var(--spacing-lg);
    max-width: 700px;
}

/* ========================================
   NAVIGATION
   ======================================== */
.nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: rgba(250, 250, 248, 0.85);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid transparent;
    transition: all var(--transition);
    height: var(--nav-height);
}

.nav.scrolled {
    border-bottom-color: var(--color-border);
    background: rgba(250, 250, 248, 0.95);
    box-shadow: 0 1px 20px rgba(0,0,0,0.04);
}

.nav-container {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0 var(--spacing-md);
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.nav-logo-img {
    height: 32px;
    width: auto;
    display: block;
}

.nav-links {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
}

.nav-links a {
    font-size: 0.82rem;
    font-weight: 500;
    letter-spacing: 0.05em;
    color: var(--color-text-light);
    position: relative;
    padding: 0.25rem 0;
}

.nav-links a::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 1px;
    background: var(--color-accent);
    transition: width var(--transition);
}

.nav-links a:hover { color: var(--color-accent); }
.nav-links a:hover::after { width: 100%; }

/* Mobile Menu Button */
.mobile-menu-btn {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 5px;
    z-index: 1001;
}

.mobile-menu-btn span {
    display: block;
    width: 24px;
    height: 2px;
    background: var(--color-primary);
    transition: var(--transition);
}

.mobile-menu-btn.active span:nth-child(1) {
    transform: rotate(45deg) translate(5px, 5px);
}
.mobile-menu-btn.active span:nth-child(2) {
    opacity: 0;
}
.mobile-menu-btn.active span:nth-child(3) {
    transform: rotate(-45deg) translate(5px, -5px);
}

.mobile-menu {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: var(--color-bg);
    z-index: 999;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    pointer-events: none;
    transition: opacity var(--transition);
}

.mobile-menu.active {
    opacity: 1;
    pointer-events: auto;
}

.mobile-menu-inner {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--spacing-md);
}

.mobile-menu-inner a {
    font-size: 1.2rem;
    font-weight: 500;
    color: var(--color-primary);
    letter-spacing: 0.05em;
    padding: 0.5rem 0;
}

/* ========================================
   HERO
   ======================================== */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-light) 50%, #0f3460 100%);
    overflow: hidden;
    padding: var(--nav-height) var(--spacing-md) var(--spacing-lg);
}

.hero-overlay {
    position: absolute;
    inset: 0;
    background:
        radial-gradient(ellipse at 20% 50%, rgba(184, 148, 75, 0.08) 0%, transparent 50%),
        radial-gradient(ellipse at 80% 20%, rgba(184, 148, 75, 0.06) 0%, transparent 50%),
        radial-gradient(ellipse at 50% 80%, rgba(184, 148, 75, 0.04) 0%, transparent 50%);
    pointer-events: none;
}

.hero-particles {
    position: absolute;
    inset: 0;
    pointer-events: none;
}

.hero-particle {
    position: absolute;
    border: 1px solid rgba(184, 148, 75, 0.2);
    border-radius: 50%;
    animation: float-up linear infinite;
}

@keyframes float-up {
    0% { transform: translateY(0) rotate(0deg); opacity: 0; }
    10% { opacity: 1; }
    90% { opacity: 0; }
    100% { transform: translateY(-100vh) rotate(360deg); opacity: 0; }
}

.hero-grid {
    position: relative;
    z-index: 1;
    max-width: var(--max-width);
    width: 100%;
    text-align: center;
}

.hero-text {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--spacing-md);
}

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

.hero-badge-line {
    width: 40px;
    height: 1px;
    background: var(--color-accent);
}

.hero-badge-text {
    font-size: 0.85rem;
    letter-spacing: 0.2em;
    color: var(--color-accent-light);
    text-transform: uppercase;
    font-weight: 500;
}

.hero-title {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.hero-title-main {
    font-family: var(--font-display);
    font-size: clamp(2.5rem, 6vw, 4rem);
    font-weight: 600;
    color: #ffffff;
    letter-spacing: 0.03em;
    line-height: 1.3;
}

.hero-title-sub {
    font-family: var(--font-display);
    font-size: clamp(1.8rem, 4vw, 2.8rem);
    font-weight: 400;
    color: rgba(255, 255, 255, 0.75);
    letter-spacing: 0.05em;
}

.hero-divider {
    width: 80px;
    height: 2px;
    background: var(--color-accent);
    margin: 0.5rem 0;
}

.hero-desc {
    font-size: 1.05rem;
    color: rgba(255, 255, 255, 0.7);
    max-width: 700px;
    line-height: 1.9;
}

.hero-desc strong {
    color: var(--color-accent-light);
    font-weight: 600;
}

.hero-cta {
    display: flex;
    gap: var(--spacing-sm);
    margin-top: var(--spacing-xs);
    flex-wrap: wrap;
    justify-content: center;
}

.btn-primary {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.9rem 2.2rem;
    background: var(--color-accent);
    color: #fff;
    font-weight: 600;
    font-size: 0.9rem;
    letter-spacing: 0.05em;
    border: 2px solid var(--color-accent);
    transition: all var(--transition);
}

.btn-primary:hover {
    background: var(--color-accent-light);
    border-color: var(--color-accent-light);
    transform: translateY(-1px);
    box-shadow: 0 8px 25px rgba(184, 148, 75, 0.3);
}

.btn-outline {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.9rem 2.2rem;
    background: transparent;
    color: rgba(255, 255, 255, 0.9);
    font-weight: 500;
    font-size: 0.9rem;
    letter-spacing: 0.05em;
    border: 2px solid rgba(255, 255, 255, 0.3);
    transition: all var(--transition);
}

.btn-outline:hover {
    border-color: rgba(255, 255, 255, 0.7);
    color: #fff;
    transform: translateY(-1px);
}

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

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

.hero-stat-number {
    display: block;
    font-family: var(--font-display);
    font-size: 2rem;
    font-weight: 700;
    color: var(--color-accent-light);
    line-height: 1.2;
}

.hero-stat-label {
    display: block;
    font-size: 0.75rem;
    color: rgba(255, 255, 255, 0.5);
    letter-spacing: 0.1em;
    text-transform: uppercase;
}

.hero-scroll-indicator {
    position: absolute;
    bottom: 2rem;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.5rem;
    color: rgba(255, 255, 255, 0.4);
    font-size: 0.75rem;
    letter-spacing: 0.1em;
    animation: bounce-vertical 2s ease-in-out infinite;
}

@keyframes bounce-vertical {
    0%, 100% { transform: translateX(-50%) translateY(0); }
    50% { transform: translateX(-50%) translateY(8px); }
}

.scroll-arrow {
    width: 20px;
    height: 20px;
    border-right: 1px solid rgba(255,255,255,0.4);
    border-bottom: 1px solid rgba(255,255,255,0.4);
    transform: rotate(45deg);
}

/* ========================================
   PAIN POINTS
   ======================================== */
.pain-points {
    padding: var(--spacing-xl) 0;
    background: var(--color-surface);
}

.pain-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-md);
}

.pain-card {
    padding: var(--spacing-lg) var(--spacing-md);
    border: 1px solid var(--color-border);
    background: var(--color-bg);
    transition: all var(--transition);
    position: relative;
    overflow: hidden;
    cursor: pointer;
}

.pain-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 3px;
    height: 0;
    background: var(--color-accent);
    transition: height var(--transition-slow);
}

.pain-card:hover {
    border-color: var(--color-accent-dim-strong);
    transform: translateY(-4px);
    box-shadow: 0 12px 40px rgba(0,0,0,0.06);
}

.pain-card:hover::before {
    height: 100%;
}

.pain-icon {
    width: 48px;
    height: 48px;
    margin-bottom: var(--spacing-sm);
    color: var(--color-accent);
}

.pain-card h3 {
    font-size: 1.15rem;
    margin-bottom: var(--spacing-xs);
    font-weight: 600;
}

/* 让整个卡片都可点击（stretched link 模式） */
.pain-card h3 a::after {
    content: '';
    position: absolute;
    inset: 0;
    z-index: 1;
}

.pain-card p {
    font-size: 0.9rem;
    color: var(--color-text-light);
    line-height: 1.7;
}

/* ========================================
   PARALLAX DIVIDERS
   ======================================== */
.parallax-divider {
    position: relative;
    padding: var(--spacing-2xl) var(--spacing-md);
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    overflow: hidden;
}

.parallax-1 {
    background: linear-gradient(135deg, var(--color-primary) 0%, #1a2744 50%, var(--color-primary) 100%);
}

.parallax-2 {
    background: linear-gradient(135deg, #1a2744 0%, var(--color-primary) 50%, #0f2040 100%);
}

.parallax-3 {
    background: linear-gradient(135deg, var(--color-primary) 0%, #162040 50%, #1a2744 100%);
}

.parallax-divider::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--color-accent-dim-strong), transparent);
}

.parallax-divider::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--color-accent-dim-strong), transparent);
}

.parallax-content {
    position: relative;
    z-index: 1;
    display: flex;
    flex-direction: column;
    gap: 0.8rem;
}

.parallax-quote {
    font-family: var(--font-display);
    font-size: clamp(1.8rem, 3.5vw, 2.5rem);
    font-weight: 500;
    font-style: italic;
    color: var(--color-accent-light);
}

.parallax-sub {
    font-size: 1rem;
    color: rgba(255, 255, 255, 0.5);
    letter-spacing: 0.05em;
}

/* ========================================
   SERVICES ACCORDION
   ======================================== */
.services {
    padding: var(--spacing-xl) 0;
    background: var(--color-surface);
}

.services-accordion {
    display: flex;
    flex-direction: column;
    gap: 1px;
    background: var(--color-border);
    border: 1px solid var(--color-border);
}

.service-group {
    background: var(--color-bg);
}

.service-group-header {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    padding: var(--spacing-md);
    cursor: pointer;
    transition: background var(--transition);
    user-select: none;
}

.service-group-header:hover {
    background: var(--color-bg-alt);
}

.service-group-icon {
    width: 48px;
    height: 48px;
    flex-shrink: 0;
    color: var(--color-accent);
}

.service-group-title {
    flex: 1;
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.service-group-num {
    font-family: var(--font-display);
    font-size: 1.4rem;
    color: var(--color-accent);
}

.service-group-title h3 {
    font-size: 1.2rem;
    font-weight: 600;
}

.service-group-toggle {
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    border: 1px solid var(--color-border);
    border-radius: 50%;
    transition: var(--transition);
    position: relative;
}

.service-group-toggle::before,
.service-group-toggle::after {
    content: '';
    position: absolute;
    background: var(--color-accent);
    transition: var(--transition);
}

.service-group-toggle::before {
    width: 12px;
    height: 2px;
}

.service-group-toggle::after {
    width: 2px;
    height: 12px;
}

.service-group.expanded .service-group-toggle::after {
    transform: rotate(90deg);
    opacity: 0;
}

.service-group-body {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.5s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

.service-group.expanded .service-group-body {
    max-height: 600px;
}

.service-detail-grid {
    display: grid;
    grid-template-columns: 1fr 300px;
    gap: var(--spacing-lg);
    padding: 0 var(--spacing-md) var(--spacing-lg);
}

.service-detail-list h4 {
    font-family: var(--font-body);
    font-size: 0.85rem;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--color-accent);
    margin-bottom: var(--spacing-sm);
}

.service-detail-list ul {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.service-detail-list li {
    position: relative;
    padding-left: 1.2rem;
    font-size: 0.92rem;
    color: var(--color-text-light);
    line-height: 1.7;
}

.service-detail-list li::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0.6em;
    width: 5px;
    height: 5px;
    border-radius: 50%;
    background: var(--color-accent);
}

.service-detail-list li strong {
    color: var(--color-text);
}

.service-detail-highlight {
    background: linear-gradient(135deg, var(--color-primary), var(--color-primary-light));
    padding: var(--spacing-md);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    text-align: center;
    gap: var(--spacing-sm);
}

.highlight-stat {
    display: flex;
    flex-direction: column;
    align-items: center;
}

.highlight-number {
    font-family: var(--font-display);
    font-size: 2.2rem;
    font-weight: 700;
    color: var(--color-accent-light);
}

.highlight-label {
    font-size: 0.8rem;
    color: rgba(255, 255, 255, 0.5);
    letter-spacing: 0.1em;
    text-transform: uppercase;
}

.service-detail-highlight p {
    font-size: 0.85rem;
    color: rgba(255, 255, 255, 0.65);
    line-height: 1.7;
}

/* ========================================
   CASE STUDIES
   ======================================== */
.cases {
    padding: var(--spacing-xl) 0;
    background: var(--color-bg);
}

.cases-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-md);
}

.case-card {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    padding: var(--spacing-md);
    display: flex;
    flex-direction: column;
    transition: all var(--transition);
}

.case-card:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 30px rgba(0,0,0,0.06);
    border-color: var(--color-accent-dim-strong);
}

.case-card-tag {
    display: inline-block;
    align-self: flex-start;
    font-size: 0.7rem;
    padding: 0.2rem 0.7rem;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--color-accent);
    background: var(--color-accent-dim);
    margin-bottom: var(--spacing-sm);
}

.case-card-body h4 {
    font-family: var(--font-heading);
    font-size: 1.1rem;
    font-weight: 600;
    margin-bottom: var(--spacing-xs);
    line-height: 1.4;
}

.case-card-body p {
    font-size: 0.9rem;
    color: var(--color-text-light);
    line-height: 1.7;
    flex: 1;
}

.case-card-footer {
    margin-top: var(--spacing-sm);
    padding-top: var(--spacing-sm);
    border-top: 1px solid var(--color-border-light);
}

.case-card-jurisdiction {
    font-size: 0.8rem;
    color: var(--color-text-muted);
    font-weight: 500;
}

/* ========================================
   ADVANTAGES
   ======================================== */
.advantages {
    padding: var(--spacing-xl) 0;
    background: var(--color-surface);
}

.advantages-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-md);
}

.advantage-card {
    padding: var(--spacing-md);
    border: 1px solid var(--color-border);
    background: var(--color-bg);
    transition: var(--transition);
}

.advantage-card:hover {
    border-color: var(--color-accent-dim-strong);
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(0,0,0,0.04);
}

.advantage-number {
    font-family: var(--font-display);
    font-size: 3rem;
    font-weight: 700;
    color: var(--color-accent-dim-strong);
    line-height: 1;
}

.advantage-card h3 {
    font-size: 1.1rem;
    font-weight: 600;
    margin: var(--spacing-xs) 0;
}

.advantage-card p {
    font-size: 0.9rem;
    color: var(--color-text-light);
    line-height: 1.7;
}

/* ========================================
   PROCESS TIMELINE
   ======================================== */
.process {
    padding: var(--spacing-xl) 0;
    background: var(--color-bg);
}

.process-timeline {
    display: flex;
    flex-direction: column;
    gap: 0;
    position: relative;
}

.process-timeline::before {
    content: '';
    position: absolute;
    left: 30px;
    top: 0;
    bottom: 0;
    width: 1px;
    background: var(--color-border);
}

.process-step {
    display: flex;
    gap: var(--spacing-md);
    padding: var(--spacing-md) 0;
    position: relative;
}

.process-step-number {
    width: 60px;
    height: 60px;
    flex-shrink: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    font-family: var(--font-display);
    font-size: 1.3rem;
    font-weight: 700;
    color: var(--color-accent);
    z-index: 1;
    transition: var(--transition);
}

.process-step:hover .process-step-number {
    background: var(--color-accent);
    color: #fff;
    border-color: var(--color-accent);
}

.process-step-content {
    padding-top: 0.8rem;
}

.process-step-content h4 {
    font-size: 1.1rem;
    font-weight: 600;
    margin-bottom: 0.3rem;
}

.process-step-content p {
    font-size: 0.9rem;
    color: var(--color-text-light);
    line-height: 1.7;
}

/* ========================================
   INSIGHTS
   ======================================== */
.insights {
    padding: var(--spacing-xl) 0;
    background: var(--color-surface);
}

.insights-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--spacing-md);
}

.insight-card {
    display: block;
    padding: var(--spacing-md);
    border: 1px solid var(--color-border);
    transition: var(--transition);
    background: var(--color-bg);
}

.insight-card:hover {
    border-color: var(--color-accent-dim-strong);
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(0,0,0,0.04);
}

.insight-card-date {
    font-size: 0.8rem;
    color: var(--color-accent);
    margin-bottom: var(--spacing-xs);
    letter-spacing: 0.05em;
}

.insight-card h4 {
    font-family: var(--font-heading);
    font-size: 1.1rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
    line-height: 1.4;
}

.insight-card p {
    font-size: 0.9rem;
    color: var(--color-text-light);
    line-height: 1.6;
}

/* ========================================
   FAQ
   ======================================== */
.faq {
    padding: var(--spacing-xl) 0;
    background: var(--color-bg);
}

.faq-grid {
    display: flex;
    flex-direction: column;
    gap: 1px;
    background: var(--color-border);
    border: 1px solid var(--color-border);
}

.faq-item {
    background: var(--color-surface);
}

.faq-question {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-md);
    cursor: pointer;
    user-select: none;
    transition: background var(--transition);
}

.faq-question:hover {
    background: var(--color-bg-alt);
}

.faq-q {
    width: 36px;
    height: 36px;
    flex-shrink: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--color-accent-dim);
    color: var(--color-accent);
    font-family: var(--font-display);
    font-size: 1rem;
    font-weight: 700;
}

.faq-question h4 {
    flex: 1;
    font-family: var(--font-body);
    font-size: 1rem;
    font-weight: 500;
    color: var(--color-primary);
}

.faq-toggle {
    width: 32px;
    height: 32px;
    flex-shrink: 0;
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
}

.faq-toggle::before,
.faq-toggle::after {
    content: '';
    position: absolute;
    background: var(--color-accent);
    transition: var(--transition);
}

.faq-toggle::before {
    width: 10px;
    height: 2px;
}

.faq-toggle::after {
    width: 2px;
    height: 10px;
}

.faq-item.active .faq-toggle::after {
    transform: rotate(90deg);
    opacity: 0;
}

.faq-answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.4s ease, padding 0.4s ease;
    padding: 0 var(--spacing-md);
}

.faq-item.active .faq-answer {
    max-height: 300px;
    padding: 0 var(--spacing-md) var(--spacing-md);
}

.faq-answer p {
    font-size: 0.92rem;
    color: var(--color-text-light);
    line-height: 1.8;
}

/* ========================================
   CONTACT
   ======================================== */
.contact {
    padding: var(--spacing-xl) 0;
    background: var(--color-surface);
}

.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-lg);
}

.contact-info {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.contact-card {
    display: flex;
    gap: var(--spacing-sm);
    padding: var(--spacing-md);
    background: var(--color-bg);
    border: 1px solid var(--color-border);
}

.contact-icon {
    font-size: 1.5rem;
    flex-shrink: 0;
    width: 40px;
    text-align: center;
}

.contact-label {
    display: block;
    font-size: 0.75rem;
    color: var(--color-text-muted);
    text-transform: uppercase;
    letter-spacing: 0.1em;
    margin-bottom: 0.2rem;
}

.contact-value {
    font-size: 0.95rem;
    color: var(--color-text);
}

a.contact-value:hover {
    color: var(--color-accent);
}

.contact-value-secondary {
    display: block;
    font-size: 0.85rem;
    color: var(--color-text-muted);
    margin-top: 0.2rem;
}

.cta-card {
    background: linear-gradient(135deg, var(--color-primary), var(--color-primary-light));
    padding: var(--spacing-lg);
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.cta-card-badge {
    display: inline-block;
    align-self: flex-start;
    font-size: 0.7rem;
    padding: 0.2rem 0.7rem;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: var(--color-accent-light);
    background: rgba(184, 148, 75, 0.15);
    border: 1px solid rgba(184, 148, 75, 0.3);
}

.cta-card h3 {
    font-family: var(--font-display);
    font-size: 1.5rem;
    color: #fff;
    line-height: 1.3;
}

.cta-card p {
    font-size: 0.92rem;
    color: rgba(255, 255, 255, 0.6);
    line-height: 1.7;
}

.cta-card-features {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 0.5rem;
    padding: var(--spacing-sm) 0;
}

.cta-card-features li {
    font-size: 0.85rem;
    color: rgba(255, 255, 255, 0.7);
    padding-left: 1.2rem;
    position: relative;
}

.cta-card-features li::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: var(--color-accent-light);
    font-weight: 700;
}

.cta-card-actions {
    display: flex;
    gap: var(--spacing-sm);
    margin-top: var(--spacing-xs);
    flex-wrap: wrap;
}

.cta-card-actions .btn-outline {
    color: rgba(255, 255, 255, 0.8);
    border-color: rgba(255, 255, 255, 0.25);
}

.cta-card-actions .btn-outline:hover {
    border-color: rgba(255, 255, 255, 0.6);
    color: #fff;
}

/* ========================================
   FOOTER
   ======================================== */
.footer {
    background: var(--color-primary);
    color: rgba(255, 255, 255, 0.6);
    padding: 60px 0 30px;
}

.footer-grid {
    display: grid;
    grid-template-columns: 1.5fr 1.2fr 1fr;
    gap: 48px;
    margin-bottom: 40px;
}

.footer-brand {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.footer-logo {
    height: 32px;
    width: auto;
    display: block;
    align-self: flex-start;
    margin-bottom: 12px;
}

.footer-brand p {
    font-size: 0.85rem;
    color: rgba(255, 255, 255, 0.5);
}

.footer-breadcrumb {
    margin-top: 0.5rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.8rem;
}

.footer-breadcrumb a {
    color: var(--color-accent-light);
}

.footer-breadcrumb a:hover {
    text-decoration: underline;
}

.footer-sep {
    color: rgba(255, 255, 255, 0.3);
}

.footer-links h4,
.footer-firm h4 {
    font-family: var(--font-body);
    font-size: 0.8rem;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: rgba(255, 255, 255, 0.4);
    margin-bottom: var(--spacing-sm);
    font-weight: 500;
}

.footer-links {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.footer-links a {
    font-size: 0.85rem;
    color: rgba(255, 255, 255, 0.5);
    transition: color var(--transition);
}

.footer-links a:hover {
    color: var(--color-accent-light);
}

.footer-firm p {
    font-size: 0.85rem;
    color: rgba(255, 255, 255, 0.5);
    line-height: 1.8;
}

.footer-info {
    font-size: 0.85rem;
    color: rgba(255, 255, 255, 0.4);
    line-height: 1.8;
}

.footer-bottom {
    padding-top: 24px;
    border-top: 1px solid rgba(255, 255, 255, 0.08);
    text-align: center;
    font-size: 0.85rem;
    color: rgba(255, 255, 255, 0.3);
    line-height: 1.8;
}

.footer-motto {
    color: var(--color-accent);
    font-size: 0.85rem;
    letter-spacing: 1px;
}

.footer-icp {
    margin-top: 0.25rem;
    font-size: 0.8rem;
}

.footer-icp a {
    color: rgba(255, 255, 255, 0.3);
    text-decoration: none;
}

.footer-icp a:hover {
    color: var(--color-accent);
}

.footer-related {
    margin-left: auto;
}

.footer-related a {
    color: var(--color-accent-light);
}

.footer-icp {
    color: rgba(255, 255, 255, 0.3);
}

/* ========================================
   RESPONSIVE
   ======================================== */
@media (max-width: 1024px) {
    .pain-grid,
    .cases-grid,
    .advantages-grid {
        grid-template-columns: repeat(2, 1fr);
    }

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

    .service-detail-highlight {
        flex-direction: row;
        text-align: left;
        gap: var(--spacing-md);
    }

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

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

@media (max-width: 768px) {
    .nav-links {
        display: none;
    }

    .mobile-menu-btn {
        display: flex;
    }

    .pain-grid,
    .cases-grid,
    .advantages-grid {
        grid-template-columns: 1fr;
    }

    .hero-stats {
        gap: var(--spacing-md);
    }

    .hero-stat-number {
        font-size: 1.5rem;
    }

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

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

    .footer-bottom {
        flex-direction: column;
        text-align: center;
        gap: 0.5rem;
    }

    .footer-related {
        margin-left: 0;
    }

    .cta-card-actions {
        flex-direction: column;
    }

    .section-header h2 {
        font-size: 1.5rem;
    }

    .hero-title-main {
        font-size: clamp(1.8rem, 5vw, 2.5rem);
    }

    .hero-title-sub {
        font-size: clamp(1.3rem, 3.5vw, 1.8rem);
    }
}

@media (max-width: 480px) {
    :root {
        --spacing-xl: 4rem;
        --spacing-lg: 2.5rem;
        --spacing-md: 1.5rem;
    }

    .hero-cta {
        flex-direction: column;
        width: 100%;
    }

    .btn-primary, .btn-outline {
        width: 100%;
    }

    .process-timeline::before {
        left: 20px;
    }

    .process-step-number {
        width: 44px;
        height: 44px;
        font-size: 1rem;
    }
}

/* ========================================
   Subpage Navigation — dark, reference-style
   ======================================== */
.subpage-nav {
    position: fixed; top: 0; left: 0; right: 0; z-index: 1000;
    background: rgba(10, 22, 40, 0.92);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border-bottom: 1px solid rgba(255,255,255,0.06);
    height: 64px;
}
.subpage-nav .nav-container {
    max-width: 1200px; margin: 0 auto; padding: 0 24px;
    height: 100%; display: flex; align-items: center; justify-content: space-between;
}
.subpage-nav .nav-logo {
    display: flex; align-items: center; gap: 10px;
    font-size: 1.15rem; font-weight: 700;
    color: #fff; letter-spacing: 0.5px; text-decoration: none;
}
.subpage-nav .nav-logo img { height: 32px; width: auto; display: block; }
.subpage-nav .nav-links {
    display: flex; gap: 28px; list-style: none; margin: 0; padding: 0; align-items: center;
}
.subpage-nav .nav-links li { display: flex; align-items: center; }
.subpage-nav .nav-links a,
.subpage-nav .nav-links .nav-link-span {
    color: rgba(255,255,255,0.78); font-size: 0.9rem; font-weight: 500;
    text-decoration: none; cursor: pointer; white-space: nowrap;
    padding: 0.25rem 0; position: relative;
}
.subpage-nav .nav-links a::after {
    content: ''; position: absolute; bottom: -4px; left: 0;
    width: 0; height: 2px; background: var(--color-accent);
    transition: width 0.3s;
}
.subpage-nav .nav-links a:hover { color: #fff; }
.subpage-nav .nav-links a:hover::after { width: 100%; }

.nav-dropdown { position: relative; }
.nav-dropdown-trigger {
    color: rgba(255,255,255,0.78); font-size: 0.9rem; font-weight: 500;
    cursor: pointer; display: flex; align-items: center; gap: 3px;
    padding: 4px 0; white-space: nowrap; user-select: none;
    transition: color 0.3s;
}
.nav-dropdown-trigger:hover { color: #fff; }
.nav-dropdown-arrow { font-size: 0.55rem; transition: transform 0.25s ease; display: inline-block; }
.nav-dropdown:hover .nav-dropdown-arrow,
.nav-dropdown.open .nav-dropdown-arrow { transform: rotate(180deg); }
.nav-dropdown-menu {
    position: absolute; top: calc(100% + 10px); left: 50%;
    transform: translateX(-50%);
    background: #132038; border: 1px solid rgba(255,255,255,0.1);
    border-radius: 6px; box-shadow: 0 12px 40px rgba(0,0,0,0.35);
    padding: 6px 0; min-width: 170px; list-style: none; margin: 0;
    opacity: 0; visibility: hidden;
    transition: opacity 0.25s ease, visibility 0.25s ease;
    z-index: 1001;
}
.nav-dropdown:hover .nav-dropdown-menu,
.nav-dropdown.open .nav-dropdown-menu { opacity: 1; visibility: visible; }
.nav-dropdown-menu li { display: block; }
.nav-dropdown-menu a,
.nav-dropdown-menu .nav-dropdown-item {
    display: block; padding: 9px 18px; font-size: 0.88rem; font-weight: 400;
    color: rgba(255,255,255,0.7) !important; white-space: nowrap;
    transition: background 0.15s, color 0.15s;
    text-decoration: none; cursor: pointer;
}
.nav-dropdown-menu a::after { display: none !important; }
.nav-dropdown-menu a:hover,
.nav-dropdown-menu .nav-dropdown-item:hover { background: rgba(255,255,255,0.06); color: var(--color-accent); }

.nav-toggle {
    display: none; flex-direction: column; gap: 5px;
    background: none; border: none; cursor: pointer; padding: 4px;
}
.nav-toggle span { display: block; width: 24px; height: 2px; background: #fff; transition: all 0.3s; }

.text-gold { color: var(--color-accent); }

.page-breadcrumb { font-size: 0.9rem; color: #999; margin-bottom: 0; }
.page-breadcrumb a { color: var(--color-accent); transition: color 0.3s; }
.page-breadcrumb a:hover { color: var(--color-accent-light); }
.page-breadcrumb span { color: #bbb; margin: 0 8px; }

.page-article {
    max-width: 1200px; margin: 0 auto; padding: 90px 24px 80px;
}
.page-article h1 {
    color: #1a1a2e; font-family: var(--font-display);
    font-size: clamp(1.75rem, 4vw, 2.5rem);
    margin-bottom: 12px; line-height: 1.3;
}
.page-article .page-meta {
    color: #999; font-size: 0.9rem; margin-bottom: 40px;
    padding-bottom: 24px; border-bottom: 1px solid #e5e2dc;
}
.page-article .page-meta span { margin-right: 20px; }

@media (max-width: 900px) {
    .subpage-nav .nav-links {
        position: fixed; top: 64px; left: 0; right: 0;
        background: rgba(10,22,40,0.96); backdrop-filter: blur(16px);
        flex-direction: column; gap: 0; padding: 16px 0;
        transform: translateY(-100%); opacity: 0; pointer-events: none;
        transition: all 0.3s;
        border-bottom: 1px solid rgba(255,255,255,0.06);
        max-height: calc(100vh - 64px); overflow-y: auto;
    }
    .subpage-nav .nav-links.active {
        transform: translateY(0); opacity: 1; pointer-events: auto;
    }
    .subpage-nav .nav-links li { display: block; }
    .subpage-nav .nav-links a,
    .subpage-nav .nav-links .nav-link-span {
        display: block; padding: 14px 24px;
        border-bottom: 1px solid rgba(255,255,255,0.04);
    }
    .subpage-nav .nav-links a::after { display: none; }
    .nav-dropdown { position: static; }
    .nav-dropdown-trigger {
        display: flex; align-items: center; justify-content: space-between;
        padding: 14px 24px; border-bottom: 1px solid rgba(255,255,255,0.04);
    }
    .nav-dropdown-menu {
        position: static; transform: none; opacity: 1; visibility: visible;
        background: rgba(255,255,255,0.03); border: none;
        border-radius: 0; box-shadow: none; padding: 0; display: none;
    }
    .nav-dropdown.open .nav-dropdown-menu { display: block; }
    .nav-dropdown-menu a,
    .nav-dropdown-menu .nav-dropdown-item {
        padding: 12px 24px 12px 40px; font-size: 0.85rem;
        border-bottom: 1px solid rgba(255,255,255,0.03);
    }
    .nav-toggle { display: flex; }
    .page-article { padding: 100px 16px 48px; }
}