:root {
    --bg: #f4f7fb;
    --panel: #ffffff;
    --text: #111827;
    --muted: #6b7280;
    --primary: #2563eb;
    --primary-dark: #1d4ed8;
    --accent: #7c3aed;
    --border: #e5e7eb;
    --shadow: 0 16px 40px rgba(15, 23, 42, 0.08);
    --radius: 16px;

    --blue: #2563eb;
    --blue-soft: #eff6ff;
    --cyan: #0891b2;
    --cyan-soft: #ecfeff;
    --violet: #7c3aed;
    --violet-soft: #f5f3ff;
    --orange: #ea580c;
    --orange-soft: #fff7ed;
    --green: #059669;
    --green-soft: #ecfdf5;
    --pink: #db2777;
    --pink-soft: #fdf2f8;
}

* { box-sizing: border-box; }

body {
    margin: 0;
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
    color: var(--text);
    background: var(--bg);
}

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

img {
    display: block;
    max-width: 100%;
    height: auto;
}

.container {
    width: min(1120px, calc(100% - 40px));
    margin: 0 auto;
}

/* Header */
.site-header {
    position: sticky;
    top: 0;
    z-index: 20;
    backdrop-filter: blur(12px);
    background: rgba(255, 255, 255, 0.9);
    border-bottom: 1px solid rgba(229, 231, 235, 0.9);
}

.header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    min-height: 72px;
}

.brand {
    display: inline-flex;
    align-items: center;
    gap: 12px;
    font-weight: 700;
}

.brand-mark {
    width: 40px;
    height: 40px;
    border-radius: 12px;
    display: grid;
    place-items: center;
    color: #fff;
    font-size: 14px;
    letter-spacing: 0.04em;
    background: linear-gradient(135deg, var(--blue), var(--violet), var(--pink));
    box-shadow: 0 8px 20px rgba(37, 99, 235, 0.28);
}

.nav {
    display: flex;
    align-items: center;
    gap: 24px;
    color: var(--muted);
}

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

.nav-cta {
    padding: 10px 16px;
    border-radius: 10px;
    background: linear-gradient(135deg, var(--blue), var(--violet));
    color: #fff !important;
    font-weight: 600;
    box-shadow: 0 8px 18px rgba(37, 99, 235, 0.25);
}

/* Hero */
.hero {
    position: relative;
    overflow: hidden;
    padding: 72px 0 48px;
}

.hero-bg {
    position: absolute;
    inset: 0;
    background:
        radial-gradient(circle at 85% 15%, rgba(37, 99, 235, 0.18), transparent 32%),
        radial-gradient(circle at 10% 80%, rgba(124, 58, 237, 0.14), transparent 28%),
        radial-gradient(circle at 50% 50%, rgba(6, 182, 212, 0.08), transparent 40%),
        linear-gradient(180deg, #ffffff 0%, #f0f5ff 55%, var(--bg) 100%);
    pointer-events: none;
}

.hero-inner {
    position: relative;
    display: grid;
    grid-template-columns: 1.05fr 0.95fr;
    gap: 32px;
    align-items: center;
}

.eyebrow {
    display: inline-block;
    padding: 6px 14px;
    border-radius: 999px;
    background: linear-gradient(135deg, var(--blue-soft), var(--violet-soft));
    color: var(--primary);
    font-size: 13px;
    font-weight: 600;
    margin: 0 0 16px;
}

.hero-copy h1 {
    margin: 0;
    font-size: clamp(22px, 3.5vw, 38px);
    line-height: 1.1;
    white-space: nowrap;
    background: linear-gradient(135deg, #1e3a8a 0%, #2563eb 45%, #7c3aed 100%);
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
}

.lead {
    margin: 18px 0 0;
    color: var(--muted);
    font-size: 18px;
    line-height: 1.7;
    max-width: 640px;
}

.lead-secondary {
    margin-top: 12px;
    font-size: 16px;
}

.hero-actions {
    display: flex;
    gap: 12px;
    flex-wrap: wrap;
    margin-top: 28px;
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 13px 22px;
    border-radius: 12px;
    font-size: 15px;
    font-weight: 600;
    transition: .2s ease;
}

.btn-primary {
    background: linear-gradient(135deg, var(--blue), var(--violet));
    color: #fff;
    box-shadow: 0 10px 24px rgba(37, 99, 235, 0.28);
}

.btn-primary:hover {
    transform: translateY(-1px);
    box-shadow: 0 14px 28px rgba(37, 99, 235, 0.34);
}

.btn-secondary {
    background: linear-gradient(135deg, #fff7ed, #ffedd5);
    color: #9a3412;
    box-shadow: inset 0 0 0 1px rgba(234, 88, 12, 0.15);
}

.btn-ghost {
    background: linear-gradient(135deg, #ecfeff, #eff6ff);
    color: var(--primary);
    box-shadow: inset 0 0 0 1px rgba(37, 99, 235, 0.2);
}

.hero-visual {
    position: relative;
}

.hero-image {
    width: 100%;
    border-radius: 24px;
    box-shadow: 0 24px 60px rgba(37, 99, 235, 0.18);
    border: 1px solid rgba(255, 255, 255, 0.8);
}

.hero-card {
    background: rgba(255, 255, 255, 0.92);
    backdrop-filter: blur(8px);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    padding: 24px;
}

.hero-card-float {
    position: absolute;
    left: -12px;
    bottom: -20px;
    max-width: 280px;
    border-left: 4px solid var(--violet);
}

.hero-card-title {
    font-size: 14px;
    color: var(--muted);
    margin-bottom: 12px;
}

.hero-card ul {
    margin: 0;
    padding-left: 18px;
    line-height: 1.85;
    font-size: 14px;
}

/* Stats */
.stats-strip {
    padding: 0 0 28px;
    margin-top: 8px;
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 14px;
}

.stat-item {
    border-radius: 14px;
    padding: 22px 18px;
    text-align: center;
    color: #fff;
    box-shadow: var(--shadow);
}

.stat-item strong {
    display: block;
    font-size: 26px;
    margin-bottom: 6px;
}

.stat-item span {
    font-size: 13px;
    opacity: .92;
}

/* Tone palette */
.tone-blue { --tone: var(--blue); --tone-soft: var(--blue-soft); }
.tone-cyan { --tone: var(--cyan); --tone-soft: var(--cyan-soft); }
.tone-violet { --tone: var(--violet); --tone-soft: var(--violet-soft); }
.tone-orange { --tone: var(--orange); --tone-soft: var(--orange-soft); }
.tone-green { --tone: var(--green); --tone-soft: var(--green-soft); }
.tone-pink { --tone: var(--pink); --tone-soft: var(--pink-soft); }

.stat-item.tone-blue { background: linear-gradient(135deg, #2563eb, #4f46e5); }
.stat-item.tone-cyan { background: linear-gradient(135deg, #06b6d4, #0284c7); }
.stat-item.tone-violet { background: linear-gradient(135deg, #7c3aed, #9333ea); }
.stat-item.tone-orange { background: linear-gradient(135deg, #f97316, #ea580c); }
.stat-item.tone-green { background: linear-gradient(135deg, #10b981, #059669); }
.stat-item.tone-pink { background: linear-gradient(135deg, #ec4899, #db2777); }

/* Sections */
.section {
    padding: 56px 0;
}

.section-gradient-violet {
    background: linear-gradient(180deg, #f5f3ff 0%, #eef2ff 100%);
}

.section-gradient-cyan {
    background: linear-gradient(180deg, #ecfeff 0%, #eff6ff 100%);
}

.section-gradient-warm {
    background: linear-gradient(180deg, #fff7ed 0%, #fdf2f8 50%, #f5f3ff 100%);
}

.section-gradient-indigo {
    background: linear-gradient(180deg, #eef2ff 0%, #ecfeff 100%);
}

.section-platform {
    background: linear-gradient(135deg, #1e3a8a 0%, #4338ca 42%, #0891b2 100%);
}

.section-head {
    text-align: center;
    margin-bottom: 32px;
}

.section-head h2,
.contact-copy h2 {
    margin: 0 0 10px;
    font-size: 30px;
}

.section-head p,
.contact-copy > p {
    margin: 0;
    color: var(--muted);
}

.section-head-left {
    text-align: left;
    max-width: 720px;
    margin-bottom: 28px;
}

.section-image {
    width: 100%;
    border-radius: var(--radius);
    box-shadow: var(--shadow);
}

/* About */
.about-layout {
    display: grid;
    grid-template-columns: 0.95fr 1.05fr;
    gap: 32px;
    align-items: center;
    margin-bottom: 28px;
}

.about-copy .section-head-left p,
.about-extra {
    line-height: 1.85;
    color: var(--muted);
}

.about-extra {
    margin-top: 14px;
}

.highlight-grid {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 16px;
}

.highlight-grid-inline {
    margin-top: 8px;
}

.highlight-card {
    background: var(--panel);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 24px 20px;
    box-shadow: var(--shadow);
    border-top: 4px solid var(--tone, var(--blue));
}

.highlight-card strong {
    display: block;
    font-size: 26px;
    margin-bottom: 8px;
    color: var(--tone, var(--blue));
}

.highlight-card span {
    color: var(--muted);
    font-size: 14px;
}

.values-panel-wide {
    background: var(--panel);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    padding: 28px;
}

.panel-title {
    font-size: 14px;
    color: var(--muted);
    margin-bottom: 18px;
}

.values-grid {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 16px;
}

.value-item {
    padding: 18px 16px;
    border-radius: 14px;
    background: var(--tone-soft, var(--blue-soft));
    border: 1px solid rgba(255, 255, 255, 0.8);
}

.value-item h3 {
    margin: 0 0 8px;
    font-size: 16px;
    color: var(--tone, var(--blue));
}

.value-item p {
    margin: 0;
    color: var(--muted);
    font-size: 14px;
    line-height: 1.65;
}

/* Services */
.feature-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 18px;
}

.feature-card {
    background: var(--panel);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 24px;
    box-shadow: var(--shadow);
    border-top: 4px solid var(--tone, var(--blue));
    transition: .2s ease;
}

.feature-card:hover {
    transform: translateY(-3px);
    box-shadow: 0 20px 44px rgba(15, 23, 42, 0.12);
}

.feature-icon {
    width: 48px;
    height: 48px;
    border-radius: 14px;
    display: grid;
    place-items: center;
    background: var(--tone-soft, var(--blue-soft));
    color: var(--tone, var(--blue));
    font-size: 20px;
    margin-bottom: 16px;
}

.feature-card h3 {
    margin: 0 0 10px;
    font-size: 18px;
}

.feature-card p {
    margin: 0;
    color: var(--muted);
    line-height: 1.7;
    font-size: 14px;
}

.feature-list {
    margin: 16px 0 0;
    padding-left: 18px;
    color: #475569;
    font-size: 13px;
    line-height: 1.8;
}

/* Solutions */
.solution-grid {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 18px;
}

.solution-card {
    background: var(--panel);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    overflow: hidden;
    box-shadow: var(--shadow);
    transition: .2s ease;
}

.solution-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 22px 48px rgba(15, 23, 42, 0.14);
}

.solution-media img {
    width: 100%;
    aspect-ratio: 480 / 280;
    object-fit: cover;
}

.solution-body {
    padding: 22px 22px 26px;
}

.solution-body h3 {
    margin: 0 0 10px;
    font-size: 19px;
}

.solution-body p {
    margin: 0;
    color: var(--muted);
    line-height: 1.75;
    font-size: 14px;
    min-height: 72px;
}

.tag-row {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-top: 16px;
}

.tag-row span {
    padding: 5px 10px;
    border-radius: 999px;
    background: linear-gradient(135deg, #f8fafc, #eef2ff);
    color: #475569;
    font-size: 12px;
    border: 1px solid #e2e8f0;
}

.tag-row-compact {
    margin-top: 12px;
}

/* Process */
.process-grid {
    display: grid;
    grid-template-columns: repeat(5, minmax(0, 1fr));
    gap: 14px;
}

.process-card {
    background: var(--panel);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 22px 18px;
    box-shadow: var(--shadow);
    border-bottom: 4px solid var(--tone, var(--blue));
}

.process-step {
    display: inline-block;
    margin-bottom: 12px;
    padding: 4px 10px;
    border-radius: 999px;
    background: var(--tone-soft, var(--blue-soft));
    color: var(--tone, var(--blue));
    font-size: 12px;
    font-weight: 700;
}

.process-card h3 {
    margin: 0 0 8px;
    font-size: 16px;
}

.process-card p {
    margin: 0;
    color: var(--muted);
    font-size: 13px;
    line-height: 1.65;
}

/* Capabilities */
.capability-grid {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 16px;
}

.capability-card {
    background: var(--panel);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 22px 20px;
    box-shadow: var(--shadow);
    border-left: 4px solid var(--tone, var(--blue));
}

.capability-icon {
    width: 42px;
    height: 42px;
    border-radius: 12px;
    display: grid;
    place-items: center;
    background: var(--tone-soft, var(--blue-soft));
    color: var(--tone, var(--blue));
    font-size: 18px;
    margin-bottom: 14px;
}

.capability-card h3 {
    margin: 0 0 8px;
    font-size: 17px;
}

.capability-card p {
    margin: 0;
    color: var(--muted);
    font-size: 14px;
    line-height: 1.65;
}

/* Advantages */
.advantage-grid {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 16px;
}

.advantage-card {
    background: var(--panel);
    border-radius: var(--radius);
    padding: 24px 20px;
    box-shadow: var(--shadow);
    background: linear-gradient(160deg, #fff 0%, var(--tone-soft, var(--blue-soft)) 100%);
    border: 1px solid rgba(255, 255, 255, 0.9);
}

.advantage-card h3 {
    margin: 0 0 10px;
    font-size: 17px;
    color: var(--tone, var(--blue));
}

.advantage-card p {
    margin: 0;
    color: var(--muted);
    font-size: 14px;
    line-height: 1.7;
}

/* Products */
.entry-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 18px;
}

.entry-card {
    display: block;
    border-radius: var(--radius);
    background: var(--panel);
    border: 1px solid var(--border);
    box-shadow: var(--shadow);
    overflow: hidden;
    transition: .2s ease;
}

.entry-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 22px 48px rgba(15, 23, 42, 0.14);
    border-color: #bfdbfe;
}

.entry-media img {
    width: 100%;
    aspect-ratio: 400 / 220;
    object-fit: cover;
}

.entry-body {
    padding: 20px 22px 24px;
}

.entry-body strong {
    display: block;
    margin-bottom: 8px;
    font-size: 18px;
}

.entry-body span {
    display: block;
    color: var(--muted);
    font-size: 14px;
    line-height: 1.7;
}

.entry-body em {
    display: inline-block;
    margin-top: 14px;
    color: var(--primary);
    font-style: normal;
    font-weight: 600;
    font-size: 14px;
}

/* Contact */
.contact-section {
    display: grid;
    grid-template-columns: 0.9fr 1fr 0.85fr;
    gap: 24px;
    align-items: start;
}

.contact-list {
    list-style: none;
    margin: 24px 0 0;
    padding: 0;
}

.contact-list li {
    display: flex;
    gap: 16px;
    padding: 12px 0;
    border-bottom: 1px solid rgba(229, 231, 235, 0.8);
}

.contact-list li span {
    min-width: 48px;
    color: var(--muted);
    font-size: 14px;
}

.contact-list a {
    color: var(--primary);
}

.contact-card {
    background: var(--panel);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    padding: 28px;
    border-top: 4px solid var(--violet);
}

.contact-card-title {
    font-size: 14px;
    color: var(--muted);
    margin-bottom: 16px;
}

.contact-card ul {
    margin: 0;
    padding-left: 18px;
    line-height: 1.9;
}

.contact-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    margin-top: 24px;
}

/* Footer */
.site-footer {
    padding: 28px 0 40px;
    border-top: 1px solid var(--border);
    background: linear-gradient(180deg, #fff 0%, #f8fafc 100%);
}

.footer-inner {
    display: flex;
    justify-content: space-between;
    gap: 20px;
    align-items: center;
}

.footer-inner p {
    margin: 8px 0 0;
    color: var(--muted);
    font-size: 14px;
}

.footer-links {
    display: flex;
    flex-wrap: wrap;
    gap: 16px;
    margin-top: 12px !important;
}

.footer-links a {
    color: var(--muted);
    font-size: 14px;
}

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

.footer-icp {
    margin-top: 12px !important;
}

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

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

.tech-stack {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    justify-content: flex-end;
}

.tech-stack span {
    padding: 6px 12px;
    border-radius: 999px;
    font-size: 13px;
    font-weight: 500;
}

.tech-stack .tone-blue { background: var(--blue-soft); color: var(--blue); }
.tech-stack .tone-cyan { background: var(--cyan-soft); color: var(--cyan); }
.tech-stack .tone-violet { background: var(--violet-soft); color: var(--violet); }
.tech-stack .tone-green { background: var(--green-soft); color: var(--green); }
.tech-stack .tone-orange { background: var(--orange-soft); color: var(--orange); }
.tech-stack .tone-pink { background: var(--pink-soft); color: var(--pink); }

/* Multi-page */
.page-hero {
    padding: 56px 0 32px;
    background: linear-gradient(135deg, #eff6ff 0%, #f5f3ff 55%, #fff 100%);
    border-bottom: 1px solid var(--border);
}

.page-hero h1 {
    margin: 8px 0 12px;
    font-size: clamp(28px, 4vw, 40px);
}

.page-lead {
    max-width: 720px;
    margin: 0;
    color: var(--muted);
    font-size: 17px;
    line-height: 1.7;
}

.page-lead-compact {
    margin-bottom: 20px;
}

.nav a.is-active {
    color: var(--primary);
    font-weight: 600;
}

.nav-toggle {
    display: none;
    border: 1px solid var(--border);
    background: #fff;
    border-radius: 10px;
    width: 44px;
    height: 44px;
    font-size: 20px;
    cursor: pointer;
}

.featured-grid {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 20px;
}

.featured-card {
    display: block;
    padding: 24px;
    border-radius: var(--radius);
    border: 1px solid var(--border);
    background: var(--panel);
    box-shadow: var(--shadow);
    transition: transform 0.2s, box-shadow 0.2s;
}

.featured-card:hover {
    transform: translateY(-2px);
    box-shadow: 0 20px 48px rgba(15, 23, 42, 0.12);
}

.featured-card h3 {
    margin: 0 0 10px;
}

.featured-card p {
    margin: 0;
    color: var(--muted);
    font-size: 14px;
    line-height: 1.6;
}

.featured-card em {
    display: inline-block;
    margin-top: 16px;
    font-style: normal;
    font-size: 13px;
    font-weight: 600;
    color: var(--primary);
}

.featured-card.tone-blue { border-top: 4px solid var(--blue); }
.featured-card.tone-cyan { border-top: 4px solid var(--cyan); }
.featured-card.tone-violet { border-top: 4px solid var(--violet); }

.platform-preview {
    display: grid;
    grid-template-columns: 1fr 1.2fr;
    gap: 32px;
    align-items: start;
}

.platform-copy h2 {
    margin: 0 0 12px;
    color: #fff;
}

.platform-copy p {
    color: rgba(255, 255, 255, 0.9);
    line-height: 1.7;
    margin: 0 0 20px;
}

.platform-modules {
    display: grid;
    gap: 12px;
}

.platform-module {
    display: flex;
    gap: 14px;
    padding: 16px;
    border-radius: 14px;
    background: rgba(255, 255, 255, 0.12);
    border: 1px solid rgba(255, 255, 255, 0.15);
}

.platform-module-icon {
    font-size: 22px;
    line-height: 1;
}

.platform-module strong {
    display: block;
    color: #fff;
    margin-bottom: 4px;
}

.platform-module p {
    margin: 0;
    color: rgba(255, 255, 255, 0.85);
    font-size: 14px;
    line-height: 1.5;
}

.home-cta,
.page-cta {
    text-align: center;
    padding-top: 8px;
}

.home-cta p,
.page-cta p {
    color: var(--muted);
    margin-bottom: 16px;
}

.page-cta h2 {
    margin: 0 0 8px;
}

.timeline-grid {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 16px;
}

.timeline-card {
    padding: 20px;
    border-radius: var(--radius);
    border: 1px solid var(--border);
    background: var(--panel);
}

.timeline-year {
    display: inline-block;
    padding: 4px 10px;
    border-radius: 999px;
    background: var(--blue-soft);
    color: var(--blue);
    font-size: 12px;
    font-weight: 600;
}

.timeline-card h3 {
    margin: 12px 0 8px;
    font-size: 17px;
}

.timeline-card p {
    margin: 0;
    color: var(--muted);
    font-size: 14px;
    line-height: 1.6;
}

.solution-stack {
    display: grid;
    gap: 28px;
}

.solution-card-rich {
    display: grid;
    grid-template-columns: 360px 1fr;
    gap: 24px;
    align-items: start;
}

.solution-points {
    margin: 16px 0 0;
    padding-left: 18px;
    color: var(--muted);
    line-height: 1.7;
}

.solution-points li + li {
    margin-top: 6px;
}

.ai-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 20px;
}

.ai-card {
    padding: 24px;
    border-radius: var(--radius);
    background: var(--panel);
    border: 1px solid var(--border);
    box-shadow: var(--shadow);
    border-top: 4px solid var(--tone, var(--violet));
}

.ai-card-head {
    margin-bottom: 12px;
}

.ai-card-tag {
    display: inline-block;
    padding: 4px 10px;
    border-radius: 999px;
    background: var(--tone-soft, var(--violet-soft));
    color: var(--tone, var(--violet));
    font-size: 12px;
    font-weight: 600;
    margin-bottom: 8px;
}

.ai-card h3 {
    margin: 0;
    font-size: 22px;
}

.ai-card > p {
    margin: 0;
    color: var(--muted);
    font-size: 14px;
    line-height: 1.7;
}

.ai-card-link {
    margin-top: 18px;
}

.ai-card.tone-green { --tone: var(--green); --tone-soft: var(--green-soft); }
.ai-card.tone-violet { --tone: var(--violet); --tone-soft: var(--violet-soft); }

@media (max-width: 960px) {
    .hero-inner,
    .feature-grid,
    .entry-grid,
    .highlight-grid,
    .contact-section,
    .about-layout,
    .stats-grid,
    .solution-grid,
    .process-grid,
    .capability-grid,
    .advantage-grid,
    .values-grid,
    .featured-grid,
    .platform-preview,
    .timeline-grid,
    .solution-card-rich {
        grid-template-columns: 1fr;
    }

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

    .nav-toggle {
        display: inline-grid;
        place-items: center;
    }

    .nav {
        display: none;
        position: absolute;
        top: 72px;
        left: 0;
        right: 0;
        flex-direction: column;
        align-items: stretch;
        padding: 16px 20px 20px;
        background: rgba(255, 255, 255, 0.98);
        border-bottom: 1px solid var(--border);
        box-shadow: var(--shadow);
    }

    .nav.is-open {
        display: flex;
    }

    .nav a {
        display: block;
        padding: 10px 0;
    }

    .header-inner {
        position: relative;
    }

    .hero-card-float {
        position: static;
        max-width: none;
        margin-top: 16px;
    }

    .solution-body p {
        min-height: auto;
    }

    .footer-inner {
        flex-direction: column;
        align-items: flex-start;
    }

    .tech-stack {
        justify-content: flex-start;
    }
}