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

html { scroll-behavior: smooth; }

body {
    font-family: 'Roboto', -apple-system, BlinkMacSystemFont, 'PingFang SC', 'Microsoft YaHei', sans-serif;
    line-height: 1.6;
    color: #111827;
    background: #fff;
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
}

a { text-decoration: none; color: inherit; }
ul { list-style: none; }
img { max-width: 100%; display: block; }
button { cursor: pointer; border: none; background: none; font-family: inherit; }
input, textarea { font-family: inherit; }

.container { max-width: 1280px; margin: 0 auto; padding: 0 80px; }

/* ========== Navbar ========== */
.navbar {
    position: fixed;
    top: 0; left: 0; right: 0;
    background: rgba(255, 255, 255, 0.8);
    backdrop-filter: blur(10px);
    z-index: 1000;
    height: 64px;
    border-bottom: 1px solid rgba(0, 0, 0, 0.06);
    transition: box-shadow 0.3s;
}

.nav-container {
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 80px;
    height: 64px;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.logo {
    display: flex;
    align-items: center;
    gap: 8px;
}

.logo img { height: 28px; }

.logo span {
    font-size: 1.15rem;
    font-weight: 700;
    color: #111827;
}

.nav-links {
    display: flex;
    gap: 2rem;
    align-items: center;
}

.nav-links a {
    color: #555;
    font-size: 0.88rem;
    font-weight: 500;
    transition: color 0.2s;
}

.nav-links a:hover { color: #2563EB; }

.nav-cta {
    background: #2563EB;
    color: #fff;
    padding: 0.45rem 1.4rem;
    border-radius: 6px;
    font-size: 0.88rem;
    font-weight: 500;
    transition: background 0.2s;
    white-space: nowrap;
}

.nav-cta:hover { background: #1E40AF; }

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

.nav-menu-btn span {
    display: block;
    width: 22px;
    height: 2px;
    background: #111827;
    border-radius: 2px;
    transition: all 0.3s;
}

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

/* ========== Hero ========== */
.hero {
    position: relative;
    padding: 128px 0 0;
    background: linear-gradient(135deg, #F0F9FF 1%, #E0F2FE 99%);
    overflow: hidden;
}

.hero .container { position: relative; z-index: 1; }

.hero-inner {
    display: flex;
    align-items: flex-start;
    gap: 3rem;
    padding-bottom: 80px;
}

/* Hero Left - Text */
.hero-left { flex: 1; }

.hero-heading { margin-bottom: 1.2rem; }

.hero-line1,
.hero-line2 {
    display: block;
    font-size: 3.75rem;
    font-weight: 700;
    line-height: 1;
}

.hero-line1 {
    color: #111827;
}

.hero-line2 {
    background: linear-gradient(130deg, #2563EB 5%, #0EA5E9 94%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-left > p {
    font-size: 1.25rem;
    color: #6B7280;
    line-height: 1.625;
    margin-bottom: 1.8rem;
    max-width: 584px;
}

.hero-buttons {
    display: flex;
    gap: 1rem;
    margin-bottom: 2rem;
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.4rem;
    padding: 1rem 2rem;
    border-radius: 4px;
    font-size: 1.125rem;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.25s;
    border: none;
    height: 60px;
}

.btn-primary {
    background: #2563EB;
    color: #fff;
}

.btn-primary:hover {
    background: #1E40AF;
}

.btn-primary:disabled {
    opacity: 0.55;
    cursor: not-allowed;
}

.btn-outline {
    background: #fff;
    color: #2563EB;
    border: 1.5px solid #2563EB;
}

.btn-outline:hover {
    background: #eff6ff;
}

.btn-full { width: 100%; }

.btn-cta-submit {
    background: #2563EB;
    color: #fff;
}

.btn-cta-submit:hover {
    background: #1E40AF;
    box-shadow: 0 4px 14px rgba(37, 99, 235, 0.35);
}

/* Hero Stats */
.hero-stats {
    display: flex;
    gap: 2rem;
    padding-top: 2rem;
    border-top: 1px solid rgba(0, 0, 0, 0.06);
}

.hero-stat {
    text-align: center;
    flex: 1;
}

.hero-stat-value {
    font-size: 1.875rem;
    font-weight: 700;
    color: #111827;
    line-height: 1;
}

.hero-stat-suffix {
    font-size: 1.125rem;
    font-weight: 700;
    color: #111827;
}

.hero-stat-label {
    font-size: 1rem;
    color: #6B7280;
    margin-top: 0.5rem;
}

/* Hero Right - Cards */
.hero-right {
    flex-shrink: 0;
    width: 584px;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 0.75rem;
}

/* Bottom CTA card spans full width */
.hero-card--cta {
    grid-column: 1 / -1;
    background: linear-gradient(90deg, #EFF6FF 0%, #EEF2FF 100%);
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    padding: 2rem;
}

.hero-card {
    background: #fff;
    border-radius: 20px;
    height: 188px;
    padding: 1.5rem;
    transition: transform 0.3s;
    display: flex;
    flex-direction: column;
}

.hero-card:hover {
    transform: translateY(-3px);
}

.hero-card--cta h3 {
    font-size: 1.125rem;
    font-weight: 700;
    color: #111827;
    margin-bottom: 0.5rem;
}

.hero-card--cta p {
    font-size: 0.875rem;
    color: #6B7280;
    line-height: 1.5;
    margin-bottom: 1.2rem;
    max-width: 100%;
}

.hero-card--cta .btn-primary {
    height: 48px;
    padding: 0 1.5rem;
    font-size: 1rem;
    border-radius: 8px;
}

.hero-card-icon {
    width: 48px;
    height: 48px;
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 0.75rem;
}

.hero-card-icon svg {
    width: 24px;
    height: 24px;
    color: #111827;
}

.hero-card-icon--blue   { background: #DBEAFE; }
.hero-card-icon--green  { background: #DCFCE7; }
.hero-card-icon--purple { background: #F3E8FF; }
.hero-card-icon--orange { background: #FFEDD5; }

.hero-card h3 {
    font-size: 1.125rem;
    font-weight: 700;
    color: #111827;
    margin-bottom: 0.25rem;
}

.hero-card p {
    font-size: 0.875rem;
    color: #6B7280;
    line-height: 1.43;
}

/* ========== Section Headers ========== */
.section-header {
    text-align: center;
    margin-bottom: 2.5rem;
}

.section-header h2 {
    font-size: 2.25rem;
    font-weight: 700;
    color: #111827;
    margin-bottom: 0.5rem;
}

.section-header p {
    font-size: 1.25rem;
    color: #6B7280;
    max-width: 540px;
    margin: 0 auto;
}

/* ========== Advantages ========== */
.advantages {
    padding: 80px 0;
    background: #F9FAFB;
}

.advantages-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 1.25rem;
}

.advantage-card {
    background: transparent;
    border-radius: 20px;
    padding: 2rem;
    text-align: left;
    transition: transform 0.3s, box-shadow 0.3s;
}

.advantage-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.06);
}

.advantage-icon-wrap {
    width: 64px;
    height: 64px;
    border-radius: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 1.2rem;
}

.advantage-icon-wrap svg {
    width: 24px;
    height: 24px;
    color: #111827;
}

.advantage-icon-wrap--blue   { background: #DBEAFE; }
.advantage-icon-wrap--green  { background: #DCFCE7; }
.advantage-icon-wrap--purple { background: #F3E8FF; }
.advantage-icon-wrap--orange { background: #FFEDD5; }

.advantage-card h3 {
    font-size: 1.25rem;
    font-weight: 700;
    color: #111827;
    margin-bottom: 0.5rem;
}

.advantage-card p {
    font-size: 1rem;
    color: #6B7280;
    line-height: 1.75;
}

/* ========== Solutions ========== */
.solutions {
    padding: 80px 0;
    background: #fff;
}

.solutions-grid {
    display: grid;
    grid-template-columns: repeat(6, 1fr);
    grid-template-rows: 160px 160px 256px;
    gap: 1.25rem;
}

/* Large card on left, spans 3 cols and 2 rows */
.solution-card--large {
    grid-column: span 3;
    grid-row: span 2;
    aspect-ratio: auto;
}

/* Two small cards stacked on right, each spans 3 cols */
.solution-card--small {
    grid-column: span 3;
    aspect-ratio: auto;
}

/* Bottom row: 3 equal cards, each spans 2 cols */
.solution-card:nth-child(n+4) {
    grid-row: 3;
    grid-column: span 2;
    aspect-ratio: auto;
}

.solution-card {
    position: relative;
    border-radius: 20px;
    overflow: hidden;
    cursor: pointer;
    box-shadow: 0 2px 8px rgba(0,0,0,0.06);
    transition: transform 0.3s, box-shadow 0.3s;
}

.solution-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 8px 24px rgba(0,0,0,0.1);
}

.solution-image {
    position: absolute;
    inset: 0;
}

.solution-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s;
}

.solution-card:hover .solution-image img {
    transform: scale(1.05);
}

.solution-overlay {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    padding: 1.2rem;
    background: linear-gradient(0deg, rgba(0, 0, 0, 0.6) 0%, transparent 60%);
    color: #fff;
    z-index: 1;
}

.solution-badge {
    display: inline-block;
    padding: 0.15rem 0.6rem;
    border-radius: 4px;
    background: rgba(37, 99, 235, 0.85);
    color: #fff;
    font-size: 0.75rem;
    font-weight: 500;
    margin-bottom: 0.4rem;
}

.solution-overlay h3 {
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: 0.2rem;
}

.solution-overlay p {
    font-size: 1rem;
    color: rgba(255,255,255,0.7);
}

/* Small solution card overlay */
.solution-card--small .solution-overlay {
    padding: 0.8rem 1rem;
}

.solution-card--small .solution-overlay h3 {
    font-size: 1.125rem;
}

.solution-card--small .solution-overlay p {
    font-size: 0.875rem;
}

/* Bottom row solution card overlay */
.solution-card:nth-child(n+4) .solution-overlay {
    padding: 0.8rem 1rem;
}

.solution-card:nth-child(n+4) .solution-overlay h3 {
    font-size: 1.125rem;
}

.solution-card:nth-child(n+4) .solution-overlay p {
    font-size: 0.875rem;
}

/* ========== Trust Section ========== */
.trust-section {
    padding: 80px 0;
    background: #111827;
}

.trust-content {
    display: flex;
    align-items: flex-start;
    gap: 3rem;
}

.trust-text {
    flex: 1;
    min-width: 0;
}

.trust-text h2 {
    font-size: 2.25rem;
    font-weight: 700;
    color: #fff;
    margin-bottom: 1.125rem;
}

.trust-text > p {
    font-size: 1.25rem;
    color: #D1D5DB;
    line-height: 1.625;
    margin-bottom: 1.875rem;
}

/* 为什么选择我们 */
.trust-why {
    background: #1F2937;
    border-radius: 20px;
    padding: 2rem;
}

.trust-why h3 {
    font-size: 1.5rem;
    font-weight: 700;
    color: #fff;
    margin-bottom: 1.375rem;
}

.trust-why-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1.25rem;
}

.trust-why-item {
    display: flex;
    align-items: flex-start;
    gap: 1rem;
}

.trust-why-icon {
    width: 48px;
    height: 48px;
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.trust-why-icon svg {
    width: 18px;
    height: 18px;
    color: #fff;
}

.trust-why-icon--blue   { background: #2563EB; }
.trust-why-icon--green  { background: #16A34A; }
.trust-why-icon--purple { background: #9333EA; }
.trust-why-icon--orange { background: #EA580C; }

.trust-why-text h4 {
    font-size: 1.125rem;
    font-weight: 700;
    color: #fff;
    margin-bottom: 0.35rem;
}

.trust-why-text p {
    font-size: 1rem;
    color: #D1D5DB;
    line-height: 1.5;
}

/* Trust Partners Card - 右侧有顶部偏移 */
.trust-partners {
    flex: 1;
    margin-top: 62px;
    background: #1F2937;
    border-radius: 20px;
    padding: 2rem;
}

.trust-partners h3 {
    font-size: 1.5rem;
    font-weight: 700;
    color: #fff;
    margin-bottom: 1rem;
}

.trust-partners > p {
    font-size: 1rem;
    color: #D1D5DB;
    line-height: 1.625;
    margin-bottom: 1.75rem;
}

.partners-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1rem;
}

.partner-card {
    background: #1F2937;
    border-radius: 20px;
    padding: 1.5rem;
    border: 1px solid rgba(255, 255, 255, 0.06);
}

.partner-card h4 {
    font-size: 1rem;
    font-weight: 700;
    color: #fff;
    margin-bottom: 0.5rem;
}

.partner-card p {
    font-size: 0.875rem;
    color: #9CA3AF;
    line-height: 1.43;
}

/* ========== Cases ========== */
.cases {
    padding: 80px 0;
    background: #fff;
}

.cases-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 32px;
}

.case-card {
    background: #fff;
    border-radius: 20px;
    overflow: hidden;
    box-shadow: 0 2px 8px rgba(0,0,0,0.06);
    transition: transform 0.3s, box-shadow 0.3s;
    border: 1px solid #E5E7EB;
}

.case-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 8px 24px rgba(0,0,0,0.07);
}

.case-image {
    width: 100%;
    height: 192px;
    overflow: hidden;
}

.case-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s;
}

.case-card:hover .case-image img {
    transform: scale(1.05);
}

.case-content {
    padding: 1.5rem;
}

.case-tag {
    display: inline-block;
    padding: 0.25rem 0.75rem;
    border-radius: 14px;
    background: #DBEAFE;
    color: #1E40AF;
    font-size: 0.875rem;
    font-weight: 500;
    margin-bottom: 0.75rem;
}

.case-content h3 {
    font-size: 1.125rem;
    font-weight: 700;
    color: #111827;
    margin-bottom: 0.5rem;
}

.case-content p {
    font-size: 1rem;
    color: #6B7280;
    line-height: 1.625;
    margin-bottom: 1.2rem;
}

.case-footer {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding-top: 0.75rem;
    border-top: 1px solid #f1f5f9;
}

.case-year {
    font-size: 0.875rem;
    color: #9CA3AF;
}

.case-link {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 32px;
    height: 32px;
    border-radius: 50%;
    background: #F3F4F6;
    color: #2563EB;
    transition: background 0.2s, color 0.2s;
}

.case-link:hover {
    background: #2563EB;
    color: #fff;
}

.case-link svg {
    transition: transform 0.2s;
}

.case-link:hover svg {
    transform: translateX(2px);
}

/* ========== Pricing ========== */
.pricing {
    padding: 80px 0;
    background: #F9FAFB;
}

.pricing-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 32px;
}

.pricing-card {
    background: #fff;
    border-radius: 20px;
    padding: 2rem;
    text-align: center;
    box-shadow: 0 2px 8px rgba(0,0,0,0.06);
    transition: transform 0.3s, box-shadow 0.3s;
    position: relative;
}

.pricing-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 8px 24px rgba(0,0,0,0.1);
}

.pricing-card--featured {
    border: 2px solid #2563EB;
    box-shadow: 0 8px 24px rgba(37, 99, 235, 0.15);
}

.pricing-badge {
    position: absolute;
    top: -24px;
    left: 50%;
    transform: translateX(-50%);
    background: #2563EB;
    color: #fff;
    padding: 0.25rem 0.8rem;
    border-radius: 12px;
    font-size: 0.75rem;
    font-weight: 500;
    white-space: nowrap;
    line-height: 1.5;
    z-index: 1;
}

.pricing-card h3 {
    font-size: 1.25rem;
    font-weight: 700;
    color: #111827;
    margin-bottom: 0.5rem;
    text-align: center;
}

.pricing-card-header {
    text-align: center;
    margin-bottom: 1.5rem;
}

.pricing-card-header h3 {
    margin-bottom: 0.75rem;
}

.pricing-price {
    font-size: 2.25rem;
    font-weight: 700;
    color: #2563EB;
    line-height: 1;
}

.pricing-period {
    font-size: 1rem;
    font-weight: 400;
    color: #4B5563;
    margin-top: 0.25rem;
}

.pricing-features {
    text-align: left;
    margin-bottom: 1.5rem;
}

.pricing-feature {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.4rem 0;
    font-size: 0.875rem;
    color: #4B5563;
}

.pricing-feature svg {
    flex-shrink: 0;
}

.pricing-feature--disabled {
    opacity: 0.4;
}

.pricing-feature--disabled svg path {
    stroke: #D1D5DB !important;
}

.pricing-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    width: 100%;
    height: 48px;
    border-radius: 8px;
    background: #F3F4F6;
    font-size: 1rem;
    font-weight: 400;
    color: #4B5563;
    transition: background 0.2s;
    border: none;
    cursor: pointer;
}

.pricing-btn:hover {
    background: #E5E7EB;
}

.pricing-btn--featured {
    background: #2563EB;
    color: #fff;
}

.pricing-btn--featured:hover {
    background: #1E40AF;
}

/* ========== CTA Section ========== */
.cta-section {
    position: relative;
    padding: 80px 0;
    overflow: hidden;
}

.cta-bg {
    position: absolute;
    inset: 0;
    background: linear-gradient(130deg, #2563EB 5%, #0EA5E9 94%);
}

.cta-content {
    position: relative;
    z-index: 1;
    max-width: 540px;
    margin: 0 auto;
    text-align: center;
    background: #fff;
    border-radius: 20px;
    padding: 2.5rem 2.2rem;
    box-shadow: 0 20px 60px rgba(0,0,0,0.18);
}

.cta-content h2 {
    font-size: 1.5rem;
    font-weight: 700;
    color: #111827;
    margin-bottom: 0.4rem;
}

.cta-content > p {
    font-size: 0.875rem;
    color: #6B7280;
    margin-bottom: 1.8rem;
}

.cta-form .form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1rem;
}

.cta-form .form-group {
    margin-bottom: 1rem;
}

.cta-form label {
    display: block;
    font-size: 0.875rem;
    font-weight: 500;
    color: #374151;
    margin-bottom: 0.4rem;
    text-align: left;
}

.cta-form input,
.cta-form textarea {
    width: 100%;
    padding: 0.7rem 1rem;
    border: 1px solid #E5E7EB;
    border-radius: 8px;
    font-size: 1rem;
    color: #374151;
    background: #F9FAFB;
    transition: border-color 0.2s, box-shadow 0.2s;
}

.cta-form input::placeholder,
.cta-form textarea::placeholder {
    color: #D1D5DB;
}

.cta-form input:focus,
.cta-form textarea:focus {
    outline: none;
    border-color: #2563EB;
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
    background: #fff;
}

.cta-form textarea {
    resize: vertical;
    min-height: 72px;
}

.char-counter {
    text-align: right;
    font-size: 0.75rem;
    color: #9CA3AF;
    margin-top: 0.25rem;
}

.btn-cta-submit {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 100%;
    padding: 0.75rem 2rem;
    border-radius: 8px;
    font-size: 1.125rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.25s;
    border: none;
    background: #2563EB;
    color: #fff;
    height: auto;
}

.btn-cta-submit:hover {
    background: #1E40AF;
    box-shadow: 0 4px 14px rgba(37, 99, 235, 0.4);
}

.btn-cta-submit:disabled {
    opacity: 0.55;
    cursor: not-allowed;
}

/* ========== Footer ========== */
.footer {
    background: #111827;
    color: rgba(255,255,255,0.5);
    padding: 64px 0 0;
}

.footer-top {
    display: flex;
    justify-content: space-between;
    gap: 3rem;
    padding-bottom: 2rem;
    border-bottom: 1px solid rgba(255,255,255,0.06);
}

.footer-brand { max-width: 280px; }

.footer-logo {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-bottom: 0.7rem;
}

.footer-logo img { height: 24px; }

.footer-logo span {
    font-size: 1.05rem;
    font-weight: 700;
    color: #fff;
}

.footer-brand > p {
    font-size: 0.875rem;
    line-height: 1.7;
    color: rgba(255,255,255,0.3);
    margin-bottom: 0.5rem;
}

.footer-links {
    display: flex;
    gap: 3rem;
}

.footer-col h4 {
    color: #fff;
    font-size: 0.875rem;
    font-weight: 600;
    margin-bottom: 0.7rem;
}

.footer-col ul li {
    margin-bottom: 0.35rem;
}

.footer-col ul li a {
    color: rgba(255,255,255,0.3);
    font-size: 0.875rem;
    transition: color 0.2s;
}

.footer-col ul li a:hover {
    color: #60A5FA;
}

.footer-bottom {
    padding: 1.1rem 0;
    text-align: center;
}

.footer-bottom p {
    font-size: 0.73rem;
    color: rgba(255,255,255,0.22);
}

/* ========== Back to Top ========== */
.back-to-top {
    position: fixed;
    right: 2rem;
    bottom: 2rem;
    width: 38px;
    height: 38px;
    border-radius: 8px;
    background: #2563EB;
    color: #fff;
    border: none;
    cursor: pointer;
    box-shadow: 0 4px 12px rgba(37, 99, 235, 0.3);
    transition: all 0.3s;
    z-index: 999;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    pointer-events: none;
}

.back-to-top.visible {
    opacity: 1;
    pointer-events: auto;
}

.back-to-top:hover {
    background: #1E40AF;
    transform: translateY(-2px);
}

/* ========== Alert ========== */
.alert-box {
    display: none;
    position: fixed;
    top: 78px;
    left: 50%;
    transform: translateX(-50%);
    background: #2563EB;
    color: #fff;
    padding: 0.6rem 1.5rem;
    border-radius: 8px;
    box-shadow: 0 4px 16px rgba(37, 99, 235, 0.3);
    z-index: 2000;
    font-size: 0.83rem;
    opacity: 0;
    transition: opacity 0.3s;
}

/* ========== WOW ========== */
.wow {
    will-change: transform, opacity;
    backface-visibility: hidden;
    overflow-x: hidden;
}

/* ========== Responsive ========== */
@media (max-width: 1024px) {
    .container { max-width: 1200px; padding: 0 24px; }
    .nav-container { max-width: 1200px; padding: 0 24px; }

    .hero-inner { flex-direction: column; }
    .hero-right { width: 100%; }
    .hero-heading .hero-line1,
    .hero-heading .hero-line2 { font-size: 2.5rem; }

    .advantages-grid { grid-template-columns: repeat(2, 1fr); }
    .solutions-grid {
        grid-template-columns: repeat(6, 1fr);
        grid-template-rows: auto;
    }
    .solution-card--large { grid-column: span 6; grid-row: auto; }
    .solution-card--small { grid-column: span 3; grid-row: auto; }
    .solution-card:nth-child(n+4) { grid-row: auto; grid-column: span 2; }

    .trust-content { flex-direction: column; }
    .trust-why-grid { grid-template-columns: 1fr 1fr; }
    .partners-grid { grid-template-columns: 1fr 1fr; }

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

@media (max-width: 768px) {
    .nav-menu-btn { display: flex; }
    .nav-cta { display: none; }

    .nav-links {
        position: fixed;
        top: 64px; left: 0; right: 0;
        background: #fff;
        flex-direction: column;
        padding: 1.5rem;
        gap: 1rem;
        box-shadow: 0 8px 24px rgba(0,0,0,0.1);
        transform: translateY(-110%);
        opacity: 0;
        pointer-events: none;
        transition: all 0.3s;
    }

    .nav-links.open {
        transform: translateY(0);
        opacity: 1;
        pointer-events: auto;
    }

    .container { padding: 0 24px; }
    .nav-container { padding: 0 24px; }

    .hero { padding: 100px 0 0; }
    .hero-heading .hero-line1,
    .hero-heading .hero-line2 { font-size: 2rem; }

    .section-header h2 { font-size: 1.75rem; }
    .section-header p { font-size: 1rem; }

    .advantages-grid { grid-template-columns: 1fr; }
    .solutions-grid {
        grid-template-columns: 1fr;
        grid-template-rows: auto;
    }
    .solution-card--large,
    .solution-card--small,
    .solution-card:nth-child(n+4) { grid-column: span 1; grid-row: auto; }

    .cases-grid { grid-template-columns: repeat(2, 1fr); }
    .trust-why-grid { grid-template-columns: 1fr 1fr; }
    .partners-grid { grid-template-columns: 1fr 1fr; }
    .pricing-grid { grid-template-columns: 1fr; }
    .cta-form .form-row { grid-template-columns: 1fr; }
    .cta-content { padding: 1.8rem 1.2rem; }
    .footer-top { flex-direction: column; }
    .footer-links { gap: 2rem; flex-wrap: wrap; }
}

@media (max-width: 480px) {
    .hero-heading .hero-line1,
    .hero-heading .hero-line2 { font-size: 1.6rem; }
    .hero-buttons { flex-direction: column; align-items: center; }
    .hero-stats { flex-direction: column; gap: 1rem; }
    .trust-why-grid { grid-template-columns: 1fr; }
    .footer-links { flex-direction: column; gap: 1.5rem; }
}