/* GEO Optimization Website - Premium Design */

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

html {
    scroll-behavior: smooth;
    font-size: 16px;
}

/* ==================== Variables ==================== */
:root {
    --bg: #FFFFFF;
    --bg-subtle: #FAFAFA;
    --bg-dark: #0A0A0B;
    --text: #171717;
    --text-secondary: #525252;
    --text-tertiary: #A3A3A3;
    --accent: #18181B;
    --accent-light: #27272A;
    --border: #E5E5E5;
    --highlight: #F5F5F5;

    --font-sans: "SF Pro Display", "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
    --font-serif: "Georgia", "Times New Roman", serif;

    --space-xs: 4px;
    --space-sm: 8px;
    --space-md: 16px;
    --space-lg: 24px;
    --space-xl: 32px;
    --space-2xl: 48px;
    --space-3xl: 64px;
    --space-4xl: 96px;
    --space-5xl: 128px;

    --ease-out: cubic-bezier(0.16, 1, 0.3, 1);
    --ease-in-out: cubic-bezier(0.65, 0, 0.35, 1);
}

/* ==================== Base ==================== */
body {
    font-family: var(--font-sans);
    background: var(--bg);
    color: var(--text);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    overflow-x: hidden;
}

a {
    color: inherit;
    text-decoration: none;
}

img, svg {
    display: block;
    max-width: 100%;
}

/* ==================== Typography ==================== */
.text-xs { font-size: 11px; letter-spacing: 0.05em; text-transform: uppercase; }
.text-sm { font-size: 13px; }
.text-base { font-size: 16px; }
.text-lg { font-size: 18px; }
.text-xl { font-size: 20px; }
.text-2xl { font-size: 24px; }
.text-3xl { font-size: 32px; }
.text-4xl { font-size: 40px; }
.text-5xl { font-size: 56px; }
.text-6xl { font-size: 72px; }
.text-7xl { font-size: 96px; }

.font-light { font-weight: 300; }
.font-normal { font-weight: 400; }
.font-medium { font-weight: 500; }
.font-semibold { font-weight: 600; }
.font-bold { font-weight: 700; }

.text-secondary { color: var(--text-secondary); }
.text-tertiary { color: var(--text-tertiary); }

/* ==================== Layout ==================== */
.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--space-xl);
}

.container-sm {
    max-width: 720px;
}

.container-lg {
    max-width: 1400px;
}

.section {
    padding: var(--space-5xl) 0;
}

.section-sm {
    padding: var(--space-4xl) 0;
}

/* ==================== Navigation ==================== */
.nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 100;
    padding: var(--space-lg) 0;
    background: rgba(255, 255, 255, 0.8);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid rgba(0, 0, 0, 0.05);
}

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

.nav-logo {
    font-size: 15px;
    font-weight: 600;
    letter-spacing: -0.02em;
}

.nav-links {
    display: flex;
    gap: var(--space-xl);
    list-style: none;
}

.nav-links a {
    font-size: 14px;
    color: var(--text-secondary);
    transition: color 0.2s;
}

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

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

.hero-content {
    width: 100%;
}

.hero-title {
    font-size: clamp(48px, 10vw, 120px);
    font-weight: 600;
    line-height: 1;
    letter-spacing: -0.04em;
    margin-bottom: var(--space-xl);
}

.hero-title span {
    display: block;
}

.hero-subtitle {
    font-size: 20px;
    color: var(--text-secondary);
    max-width: 540px;
    line-height: 1.6;
    margin-bottom: var(--space-3xl);
}

.hero-scroll {
    position: absolute;
    bottom: var(--space-3xl);
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--space-sm);
    color: var(--text-tertiary);
    font-size: 11px;
    letter-spacing: 0.1em;
    text-transform: uppercase;
}

.hero-scroll-line {
    width: 1px;
    height: 60px;
    background: linear-gradient(to bottom, var(--text-tertiary), transparent);
    animation: scrollPulse 2s ease-in-out infinite;
}

@keyframes scrollPulse {
    0%, 100% { opacity: 0.3; transform: scaleY(0.5); }
    50% { opacity: 1; transform: scaleY(1); }
}

/* ==================== Intro Section ==================== */
.intro {
    background: var(--bg-dark);
    color: #FFFFFF;
}

.intro-inner {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-3xl);
    align-items: start;
}

.intro-label {
    font-size: 11px;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: rgba(255, 255, 255, 0.4);
    margin-bottom: var(--space-lg);
}

.intro-title {
    font-size: 36px;
    font-weight: 500;
    line-height: 1.3;
    letter-spacing: -0.02em;
}

.intro-text {
    font-size: 16px;
    line-height: 1.8;
    color: rgba(255, 255, 255, 0.6);
}

.intro-text p {
    margin-bottom: var(--space-lg);
}

.intro-text p:last-child {
    margin-bottom: 0;
}

/* ==================== Problem Cards ==================== */
.problems {
    background: var(--bg);
}

.problems-header {
    margin-bottom: var(--space-3xl);
}

.problems-title {
    font-size: 14px;
    font-weight: 500;
    color: var(--text-secondary);
    margin-bottom: var(--space-lg);
}

.problems-list {
    display: flex;
    flex-direction: column;
}

.problem-item {
    padding: var(--space-2xl) 0;
    border-bottom: 1px solid var(--border);
    display: grid;
    grid-template-columns: 60px 1fr;
    gap: var(--space-xl);
    align-items: start;
}

.problem-num {
    font-size: 13px;
    font-weight: 500;
    color: var(--text-tertiary);
    font-variant-numeric: tabular-nums;
}

.problem-text {
    font-size: 22px;
    font-weight: 400;
    line-height: 1.4;
    letter-spacing: -0.01em;
}

/* ==================== Definition ==================== */
.definition {
    background: var(--bg-subtle);
}

.definition-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-4xl);
}

.definition-letters {
    display: flex;
    flex-direction: column;
    gap: var(--space-2xl);
}

.definition-letter {
    display: flex;
    align-items: baseline;
    gap: var(--space-lg);
}

.definition-char {
    font-size: 80px;
    font-weight: 600;
    line-height: 1;
    letter-spacing: -0.04em;
    color: var(--text);
}

.definition-info {
    padding-top: var(--space-sm);
}

.definition-word {
    font-size: 16px;
    font-weight: 500;
    color: var(--text);
    margin-bottom: var(--space-xs);
}

.definition-meaning {
    font-size: 14px;
    color: var(--text-secondary);
}

.definition-content {
    padding-left: var(--space-2xl);
    border-left: 1px solid var(--border);
}

.definition-content-title {
    font-size: 24px;
    font-weight: 500;
    margin-bottom: var(--space-lg);
    letter-spacing: -0.01em;
}

.definition-content-text {
    font-size: 16px;
    line-height: 1.8;
    color: var(--text-secondary);
}

.definition-content-text p {
    margin-bottom: var(--space-md);
}

/* ==================== Services ==================== */
.services {
    background: var(--bg);
}

.services-header {
    margin-bottom: var(--space-4xl);
}

.services-title {
    font-size: 14px;
    font-weight: 500;
    color: var(--text-secondary);
    margin-bottom: var(--space-md);
}

.services-list {
    display: flex;
    flex-direction: column;
}

.service-item {
    display: grid;
    grid-template-columns: 120px 1fr;
    gap: var(--space-3xl);
    padding: var(--space-3xl) 0;
    border-top: 1px solid var(--border);
    position: relative;
}

.service-item::before {
    content: '';
    position: absolute;
    left: 40px;
    top: 0;
    bottom: 0;
    width: 1px;
    background: var(--border);
}

.service-item:first-child::before {
    top: 50%;
}

.service-item:last-child::before {
    bottom: 50%;
}

.service-marker {
    display: flex;
    align-items: center;
    justify-content: center;
}

.service-dot {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background: var(--accent);
    position: relative;
    z-index: 1;
}

.service-content {
    padding-top: var(--space-xs);
}

.service-title {
    font-size: 28px;
    font-weight: 500;
    margin-bottom: var(--space-md);
    letter-spacing: -0.02em;
}

.service-desc {
    font-size: 16px;
    line-height: 1.7;
    color: var(--text-secondary);
    max-width: 600px;
}

/* ==================== Keywords ==================== */
.keywords {
    background: var(--bg-dark);
    color: #FFFFFF;
    overflow: hidden;
}

.keywords-header {
    margin-bottom: var(--space-3xl);
}

.keywords-title {
    font-size: 36px;
    font-weight: 500;
    letter-spacing: -0.02em;
    margin-bottom: var(--space-md);
}

.keywords-count {
    font-size: 14px;
    color: rgba(255, 255, 255, 0.5);
}

.keywords-cloud {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-md);
    max-width: 900px;
}

.keyword-tag {
    font-size: 15px;
    color: rgba(255, 255, 255, 0.6);
    padding: var(--space-sm) var(--space-md);
    border: 1px solid rgba(255, 255, 255, 0.15);
    transition: all 0.3s var(--ease-out);
}

.keyword-tag:hover {
    background: rgba(255, 255, 255, 0.1);
    border-color: rgba(255, 255, 255, 0.3);
    color: #FFFFFF;
}

.keyword-tag.large {
    font-size: 20px;
    padding: var(--space-md) var(--space-lg);
    border-color: rgba(255, 255, 255, 0.25);
}

.keyword-tag.medium {
    font-size: 17px;
}

/* ==================== Pricing ==================== */
.pricing {
    background: var(--bg);
    text-align: center;
}

.pricing-main {
    font-size: clamp(64px, 12vw, 120px);
    font-weight: 600;
    letter-spacing: -0.04em;
    line-height: 1;
    margin-bottom: var(--space-md);
}

.pricing-period {
    font-size: 24px;
    font-weight: 400;
    color: var(--text-secondary);
}

.pricing-features {
    font-size: 16px;
    color: var(--text-secondary);
    margin-bottom: var(--space-2xl);
}

.pricing-cta {
    display: inline-flex;
    align-items: center;
    gap: var(--space-md);
    padding: var(--space-lg) var(--space-2xl);
    background: var(--accent);
    color: #FFFFFF;
    font-size: 15px;
    font-weight: 500;
    transition: all 0.3s var(--ease-out);
}

.pricing-cta:hover {
    background: var(--accent-light);
    transform: translateY(-2px);
}

.pricing-cta svg {
    transition: transform 0.3s var(--ease-out);
}

.pricing-cta:hover svg {
    transform: translateX(4px);
}

/* ==================== Contact ==================== */
.contact {
    background: var(--bg-subtle);
}

.contact-inner {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-4xl);
}

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

.contact-label {
    font-size: 12px;
    font-weight: 500;
    color: var(--text-tertiary);
    text-transform: uppercase;
    letter-spacing: 0.1em;
}

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

.contact-value {
    font-size: 24px;
    font-weight: 500;
}

.contact-qr {
    display: flex;
    flex-direction: column;
    align-items: flex-end;
}

.contact-qr img {
    width: 140px;
    height: 140px;
    border: 1px solid var(--border);
}

.contact-qr span {
    margin-top: var(--space-md);
    font-size: 13px;
    color: var(--text-secondary);
}

/* ==================== Page Header ==================== */
.page-hero {
    padding: 160px 0 var(--space-4xl);
    border-bottom: 1px solid var(--border);
}

.page-hero-label {
    font-size: 12px;
    font-weight: 500;
    color: var(--text-tertiary);
    text-transform: uppercase;
    letter-spacing: 0.1em;
    margin-bottom: var(--space-lg);
}

.page-hero-title {
    font-size: clamp(40px, 6vw, 64px);
    font-weight: 500;
    letter-spacing: -0.03em;
    line-height: 1.1;
    margin-bottom: var(--space-lg);
}

.page-hero-subtitle {
    font-size: 18px;
    color: var(--text-secondary);
    max-width: 540px;
}

/* ==================== Article ==================== */
.article {
    padding: var(--space-4xl) 0;
}

.article-content {
    max-width: 680px;
}

.article-section {
    margin-bottom: var(--space-4xl);
}

.article-section h2 {
    font-size: 32px;
    font-weight: 500;
    letter-spacing: -0.02em;
    margin-bottom: var(--space-xl);
    padding-top: var(--space-2xl);
}

.article-section h3 {
    font-size: 22px;
    font-weight: 500;
    margin-bottom: var(--space-md);
    padding-top: var(--space-xl);
}

.article-section p {
    font-size: 17px;
    line-height: 1.8;
    color: var(--text-secondary);
    margin-bottom: var(--space-lg);
}

.article-section ul {
    margin: var(--space-lg) 0;
    padding-left: var(--space-xl);
}

.article-section li {
    font-size: 17px;
    line-height: 1.8;
    color: var(--text-secondary);
    margin-bottom: var(--space-md);
}

.article-section li strong {
    color: var(--text);
    font-weight: 500;
}

/* ==================== Comparison ==================== */
.comparison-table {
    width: 100%;
    border-collapse: collapse;
    margin: var(--space-xl) 0;
    font-size: 15px;
}

.comparison-table th {
    text-align: left;
    padding: var(--space-md) var(--space-lg);
    background: var(--highlight);
    font-weight: 500;
    border-bottom: 1px solid var(--border);
}

.comparison-table td {
    padding: var(--space-md) var(--space-lg);
    border-bottom: 1px solid var(--border);
    vertical-align: top;
}

.comparison-table tr:last-child td {
    border-bottom: none;
}

/* ==================== Case Study ==================== */
.case-section {
    padding: var(--space-4xl) 0;
    border-bottom: 1px solid var(--border);
}

.case-section:last-of-type {
    border-bottom: none;
}

.case-header {
    margin-bottom: var(--space-2xl);
}

.case-industry {
    font-size: 12px;
    font-weight: 500;
    color: var(--text-tertiary);
    text-transform: uppercase;
    letter-spacing: 0.1em;
    margin-bottom: var(--space-sm);
}

.case-title {
    font-size: 28px;
    font-weight: 500;
    letter-spacing: -0.01em;
}

.case-comparison {
    display: grid;
    grid-template-columns: 1fr auto 1fr;
    gap: var(--space-xl);
    align-items: center;
    margin: var(--space-xl) 0;
}

.case-card {
    padding: var(--space-lg);
}

.case-card.before {
    background: #FEF2F2;
    border-left: 3px solid #EF4444;
}

.case-card.after {
    background: #F0FDF4;
    border-left: 3px solid #22C55E;
}

.case-card-label {
    font-size: 11px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: var(--space-sm);
}

.case-card.before .case-card-label {
    color: #EF4444;
}

.case-card.after .case-card-label {
    color: #22C55E;
}

.case-card-value {
    font-size: 20px;
    font-weight: 500;
    margin-bottom: var(--space-sm);
}

.case-card-desc {
    font-size: 14px;
    color: var(--text-secondary);
}

.case-arrow {
    color: var(--text-tertiary);
}

.case-tags {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-sm);
}

.case-tag {
    font-size: 13px;
    padding: var(--space-xs) var(--space-md);
    background: var(--highlight);
    color: var(--text-secondary);
}

/* ==================== Stats ==================== */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-xl);
    margin-bottom: var(--space-4xl);
}

.stat-card {
    padding: var(--space-2xl);
    background: var(--highlight);
    text-align: center;
}

.stat-number {
    font-size: 56px;
    font-weight: 600;
    letter-spacing: -0.03em;
    line-height: 1;
    margin-bottom: var(--space-md);
}

.stat-label {
    font-size: 14px;
    color: var(--text-secondary);
}

/* ==================== Quote ==================== */
.quotes-section {
    background: var(--bg-subtle);
    margin: var(--space-4xl) calc(-1 * var(--space-xl));
    padding: var(--space-4xl) var(--space-xl);
}

.quotes-title {
    font-size: 24px;
    font-weight: 500;
    margin-bottom: var(--space-xl);
}

.quote-item {
    padding: var(--space-xl);
    background: var(--bg);
    border-left: 2px solid var(--accent);
    margin-bottom: var(--space-lg);
}

.quote-text {
    font-size: 16px;
    line-height: 1.7;
    font-style: italic;
    color: var(--text-secondary);
    margin-bottom: var(--space-md);
}

.quote-text strong {
    color: var(--text);
    font-weight: 500;
    font-style: normal;
}

.quote-source {
    font-size: 13px;
    color: var(--text-tertiary);
}

/* ==================== FAQ ==================== */
.faq-section {
    padding: var(--space-4xl) 0;
}

.faq-category {
    margin-bottom: var(--space-4xl);
}

.faq-category:last-of-type {
    margin-bottom: 0;
}

.faq-category-title {
    font-size: 14px;
    font-weight: 500;
    color: var(--text-tertiary);
    text-transform: uppercase;
    letter-spacing: 0.1em;
    margin-bottom: var(--space-xl);
    padding-bottom: var(--space-md);
    border-bottom: 1px solid var(--border);
}

.faq-item {
    padding: var(--space-xl) 0;
    border-bottom: 1px solid var(--border);
}

.faq-question {
    font-size: 20px;
    font-weight: 500;
    margin-bottom: var(--space-md);
}

.faq-answer {
    font-size: 16px;
    line-height: 1.8;
    color: var(--text-secondary);
}

.faq-answer p {
    margin-bottom: var(--space-md);
}

.faq-answer ul {
    margin: var(--space-md) 0;
    padding-left: var(--space-xl);
}

.faq-answer li {
    margin-bottom: var(--space-sm);
}

/* ==================== Steps ==================== */
.step-section {
    padding: var(--space-3xl) 0;
    border-bottom: 1px solid var(--border);
}

.step-section:last-of-type {
    border-bottom: none;
}

.step-header {
    display: flex;
    align-items: baseline;
    gap: var(--space-lg);
    margin-bottom: var(--space-lg);
}

.step-num {
    font-size: 12px;
    font-weight: 600;
    color: var(--text);
    background: var(--highlight);
    padding: var(--space-xs) var(--space-md);
}

.step-title {
    font-size: 28px;
    font-weight: 500;
}

.step-time {
    margin-left: auto;
    font-size: 14px;
    color: var(--text-tertiary);
}

.step-content {
    padding-left: calc(12px + var(--space-lg));
}

.step-content p {
    font-size: 16px;
    line-height: 1.7;
    color: var(--text-secondary);
    margin-bottom: var(--space-lg);
}

.step-list {
    list-style: none;
    margin-bottom: var(--space-lg);
}

.step-list li {
    position: relative;
    padding-left: var(--space-lg);
    margin-bottom: var(--space-sm);
    font-size: 15px;
    color: var(--text-secondary);
}

.step-list li::before {
    content: '';
    position: absolute;
    left: 0;
    top: 10px;
    width: 4px;
    height: 4px;
    background: var(--text-tertiary);
    border-radius: 50%;
}

.step-qr {
    display: inline-block;
}

.step-qr img {
    width: 120px;
    height: 120px;
    border: 1px solid var(--border);
}

.step-qr span {
    display: block;
    margin-top: var(--space-sm);
    font-size: 12px;
    color: var(--text-tertiary);
}

/* ==================== Timeline ==================== */
.timeline-section {
    background: var(--bg-subtle);
    padding: var(--space-3xl) 0;
    margin: var(--space-3xl) 0;
}

.timeline-title {
    font-size: 20px;
    font-weight: 500;
    text-align: center;
    margin-bottom: var(--space-2xl);
}

.timeline-track {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 var(--space-xl);
}

.timeline-node {
    display: flex;
    flex-direction: column;
    align-items: center;
    min-width: 100px;
}

.timeline-circle {
    width: 48px;
    height: 48px;
    border-radius: 50%;
    background: var(--bg);
    border: 2px solid var(--accent);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 16px;
    font-weight: 600;
    color: var(--accent);
}

.timeline-label {
    margin-top: var(--space-md);
    font-size: 14px;
    font-weight: 500;
    text-align: center;
}

.timeline-time {
    margin-top: var(--space-xs);
    font-size: 12px;
    color: var(--text-tertiary);
}

.timeline-line {
    flex: 1;
    height: 2px;
    background: var(--border);
    margin: 0 var(--space-md);
}

.timeline-note {
    text-align: center;
    margin-top: var(--space-xl);
    font-size: 14px;
    color: var(--text-secondary);
}

/* ==================== Concerns ==================== */
.concerns-section {
    padding: var(--space-4xl) 0;
}

.concerns-title {
    font-size: 24px;
    font-weight: 500;
    text-align: center;
    margin-bottom: var(--space-2xl);
}

.concern-item {
    padding: var(--space-lg);
    background: var(--bg-subtle);
    margin-bottom: var(--space-md);
}

.concern-q {
    font-weight: 500;
    margin-bottom: var(--space-sm);
}

.concern-a {
    font-size: 15px;
    color: var(--text-secondary);
    line-height: 1.7;
}

/* ==================== Footer ==================== */
.footer {
    padding: var(--space-2xl) 0;
    border-top: 1px solid var(--border);
    text-align: center;
}

.footer-text {
    font-size: 14px;
    color: var(--text-tertiary);
}

/* ==================== Animations ==================== */
.fade-in {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.8s var(--ease-out), transform 0.8s var(--ease-out);
}

.fade-in.visible {
    opacity: 1;
    transform: translateY(0);
}

.stagger-1 { transition-delay: 0.1s; }
.stagger-2 { transition-delay: 0.2s; }
.stagger-3 { transition-delay: 0.3s; }
.stagger-4 { transition-delay: 0.4s; }

/* ==================== Responsive ==================== */
@media (max-width: 1024px) {
    .container {
        padding: 0 var(--space-lg);
    }

    .hero-title {
        font-size: clamp(40px, 8vw, 80px);
    }

    .intro-inner {
        grid-template-columns: 1fr;
        gap: var(--space-2xl);
    }

    .definition-grid {
        grid-template-columns: 1fr;
        gap: var(--space-3xl);
    }

    .definition-content {
        padding-left: 0;
        border-left: none;
        border-top: 1px solid var(--border);
        padding-top: var(--space-2xl);
    }

    .service-item {
        grid-template-columns: 80px 1fr;
        gap: var(--space-xl);
    }

    .contact-inner {
        grid-template-columns: 1fr;
        gap: var(--space-2xl);
    }

    .contact-qr {
        align-items: flex-start;
    }

    .case-comparison {
        grid-template-columns: 1fr;
    }

    .case-arrow {
        transform: rotate(90deg);
        text-align: center;
        padding: var(--space-md) 0;
    }

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

@media (max-width: 768px) {
    :root {
        --space-4xl: 64px;
        --space-5xl: 80px;
    }

    .container {
        padding: 0 var(--space-md);
    }

    .nav {
        padding: var(--space-md) 0;
    }

    .nav-links {
        gap: var(--space-lg);
    }

    .nav-links a {
        font-size: 13px;
    }

    .hero {
        min-height: auto;
        padding: 120px 0 var(--space-4xl);
    }

    .hero-scroll {
        display: none;
    }

    .hero-title {
        font-size: clamp(36px, 10vw, 56px);
    }

    .hero-subtitle {
        font-size: 17px;
    }

    .problem-text {
        font-size: 18px;
    }

    .problem-item {
        grid-template-columns: 40px 1fr;
        gap: var(--space-md);
    }

    .definition-char {
        font-size: 56px;
    }

    .definition-letter {
        gap: var(--space-md);
    }

    .service-item {
        grid-template-columns: 1fr;
        gap: var(--space-md);
        padding: var(--space-xl) 0;
    }

    .service-item::before {
        display: none;
    }

    .service-marker {
        justify-content: flex-start;
    }

    .keywords-title {
        font-size: 28px;
    }

    .pricing-main {
        font-size: clamp(48px, 12vw, 80px);
    }

    .article-section h2 {
        font-size: 26px;
    }

    .article-section p,
    .article-section li {
        font-size: 16px;
    }

    .timeline-track {
        flex-direction: column;
        gap: var(--space-lg);
    }

    .timeline-line {
        display: none;
    }

    .timeline-node {
        flex-direction: row;
        gap: var(--space-md);
        width: 100%;
    }

    .timeline-circle {
        width: 40px;
        height: 40px;
        font-size: 14px;
    }

    .step-header {
        flex-wrap: wrap;
    }

    .step-time {
        margin-left: 0;
        width: 100%;
        margin-top: var(--space-sm);
    }
}

@media (max-width: 480px) {
    .text-5xl { font-size: 36px; }
    .text-6xl { font-size: 42px; }
    .text-7xl { font-size: 48px; }

    .intro-title {
        font-size: 28px;
    }

    .stat-number {
        font-size: 40px;
    }
}