/**
 * Moments.top Official Website Styles
 * Modern SaaS landing page with dark/light theme support
 */

/* ===== CSS VARIABLES ===== */
:root {
    /* Primary Colors - Prospect Style Blue */
    --color-primary: #4361ee;
    --color-primary-light: #5a7cf7;
    --color-primary-dark: #3651d4;
    --color-primary-rgb: 67, 97, 238;

    /* Background Colors - Dark Theme (Prospect Style) */
    --color-bg-primary: #080b16;
    --color-bg-secondary: #0d1221;
    --color-bg-tertiary: #131a2e;
    --color-bg-elevated: #1a2340;

    /* Text Colors - Dark Theme */
    --color-text-primary: #ffffff;
    --color-text-secondary: rgba(255, 255, 255, 0.75);
    --color-text-tertiary: rgba(255, 255, 255, 0.5);

    /* Accent Colors */
    --color-accent-green: #00d4aa;
    --color-accent-blue: #4cc9f0;
    --color-accent-orange: #f8961e;
    --color-accent-red: #f72585;
    --color-accent-purple: #7209b7;

    /* Border Colors */
    --color-border: rgba(255, 255, 255, 0.08);
    --color-border-hover: rgba(255, 255, 255, 0.15);

    /* Typography - System font stack (no external fonts) */
    --font-primary: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Helvetica Neue', 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', '微软雅黑', Arial, sans-serif;

    /* Font Sizes */
    --text-xs: 0.75rem;
    --text-sm: 0.875rem;
    --text-base: 1rem;
    --text-lg: 1.125rem;
    --text-xl: 1.25rem;
    --text-2xl: 1.5rem;
    --text-3xl: 1.875rem;
    --text-4xl: 2.25rem;
    --text-5xl: 3rem;
    --text-6xl: 3.75rem;
    --text-7xl: 4.5rem;

    /* Font Weights */
    --font-light: 300;
    --font-normal: 400;
    --font-medium: 500;
    --font-semibold: 600;
    --font-bold: 700;

    /* Line Heights */
    --leading-tight: 1.1;
    --leading-snug: 1.25;
    --leading-normal: 1.5;
    --leading-relaxed: 1.625;

    /* Spacing */
    --space-1: 0.25rem;
    --space-2: 0.5rem;
    --space-3: 0.75rem;
    --space-4: 1rem;
    --space-5: 1.25rem;
    --space-6: 1.5rem;
    --space-8: 2rem;
    --space-10: 2.5rem;
    --space-12: 3rem;
    --space-16: 4rem;
    --space-20: 5rem;
    --space-24: 6rem;
    --space-32: 8rem;

    /* Container */
    --container-max: 1280px;
    --container-padding: var(--space-6);

    /* Transitions */
    --transition-fast: 150ms ease;
    --transition-base: 300ms ease;
    --transition-slow: 500ms ease;
    --transition-slower: 700ms cubic-bezier(0.16, 1, 0.3, 1);

    /* Animation */
    --animate-offset-y: 72px;
    --animate-offset-y-mobile: 48px;
    --animate-duration: 700ms;
    --animate-easing: cubic-bezier(0.16, 1, 0.3, 1);

    /* Border Radius */
    --radius-sm: 4px;
    --radius-md: 8px;
    --radius-lg: 12px;
    --radius-xl: 16px;
    --radius-2xl: 24px;
    --radius-full: 9999px;

    /* Shadows */
    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1);
    --shadow-glow: 0 0 60px rgba(var(--color-primary-rgb), 0.3);

    /* Z-Index */
    --z-header: 100;
    --z-dropdown: 200;
    --z-modal: 300;
}

/* Light Theme */
[data-theme="light"] {
    --color-bg-primary: #ffffff;
    --color-bg-secondary: #f8f9fa;
    --color-bg-tertiary: #f0f1f3;
    --color-bg-elevated: #ffffff;
    --color-text-primary: #0a0a0f;
    --color-text-secondary: #4a4a5a;
    --color-text-tertiary: #8a8a9a;
    --color-border: rgba(0, 0, 0, 0.1);
    --color-border-hover: rgba(0, 0, 0, 0.2);
}

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

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

body {
    font-family: var(--font-primary);
    font-size: var(--text-base);
    font-weight: var(--font-normal);
    line-height: var(--leading-normal);
    color: var(--color-text-primary);
    background-color: var(--color-bg-primary);
    overflow-x: hidden;
}

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

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

button {
    font-family: inherit;
    font-size: inherit;
    cursor: pointer;
    border: none;
    background: none;
}

ul, ol {
    list-style: none;
}

/* ===== LAYOUT ===== */
.container {
    width: 100%;
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 var(--container-padding);
}

.section {
    padding: var(--space-20) 0;
}

.section--lg {
    padding: var(--space-24) 0;
}

/* ===== TYPOGRAPHY ===== */
h1, h2, h3, h4, h5, h6 {
    font-weight: var(--font-semibold);
    line-height: var(--leading-tight);
}

.section__label {
    display: inline-block;
    font-size: var(--text-sm);
    font-weight: var(--font-medium);
    color: var(--color-primary);
    text-transform: uppercase;
    letter-spacing: 0.1em;
    margin-bottom: var(--space-4);
}

.section__title {
    font-size: var(--text-4xl);
    font-weight: var(--font-bold);
    margin-bottom: var(--space-4);
}

.section__description {
    font-size: var(--text-lg);
    color: var(--color-text-secondary);
    max-width: 600px;
}

.section__header {
    text-align: center;
    margin-bottom: var(--space-16);
}

.section__header .section__description {
    margin: 0 auto;
}

/* ===== BUTTONS ===== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-2);
    padding: var(--space-3) var(--space-6);
    font-size: var(--text-base);
    font-weight: var(--font-medium);
    line-height: 1;
    border-radius: var(--radius-lg);
    transition: all var(--transition-base);
    white-space: nowrap;
}

.btn--primary {
    background: var(--color-primary);
    color: #ffffff;
}

.btn--primary:hover {
    background: var(--color-primary-light);
    transform: translateY(-2px);
    box-shadow: var(--shadow-glow);
}

.btn--secondary {
    background: var(--color-bg-tertiary);
    color: var(--color-text-primary);
    border: 1px solid var(--color-border);
}

.btn--secondary:hover {
    background: var(--color-bg-elevated);
    border-color: var(--color-border-hover);
}

.btn--ghost {
    background: transparent;
    color: var(--color-text-primary);
    border: 1px solid var(--color-border);
}

.btn--ghost:hover {
    background: var(--color-bg-tertiary);
    border-color: var(--color-border-hover);
}

.btn--lg {
    padding: var(--space-4) var(--space-8);
    font-size: var(--text-lg);
}

.btn--block {
    width: 100%;
}

.btn .icon {
    width: 1.25em;
    height: 1.25em;
}

/* ===== HEADER ===== */
.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: var(--z-header);
    padding: var(--space-4) 0;
    transition: all var(--transition-base);
}

.header--scrolled {
    background: var(--color-bg-primary);
    border-bottom: 1px solid var(--color-border);
    backdrop-filter: blur(10px);
}

.nav {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--space-8);
}

.nav__logo {
    display: flex;
    align-items: center;
}

.nav__logo-img {
    height: 32px;
    width: auto;
    transition: filter var(--transition-fast);
}

/* Light theme: invert white logo to dark */
[data-theme="light"] .nav__logo-img {
    filter: invert(1) brightness(0.2);
}

.nav__menu {
    display: none;
    align-items: center;
    gap: var(--space-8);
}

.nav__link {
    font-size: var(--text-sm);
    font-weight: var(--font-medium);
    color: var(--color-text-secondary);
    transition: color var(--transition-fast);
}

.nav__link:hover {
    color: var(--color-text-primary);
}

.nav__actions {
    display: flex;
    align-items: center;
    gap: var(--space-4);
}

.nav__toggle {
    display: flex;
    flex-direction: column;
    gap: 5px;
    padding: var(--space-2);
}

.nav__toggle-line {
    width: 24px;
    height: 2px;
    background: var(--color-text-primary);
    border-radius: 1px;
    transition: all var(--transition-fast);
}

/* Mobile Nav Open */
.nav--open .nav__toggle-line:nth-child(1) {
    transform: rotate(45deg) translate(5px, 5px);
}

.nav--open .nav__toggle-line:nth-child(2) {
    opacity: 0;
}

.nav--open .nav__toggle-line:nth-child(3) {
    transform: rotate(-45deg) translate(5px, -5px);
}

/* ===== HERO ===== */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding-top: calc(var(--space-24) + 60px);
    padding-bottom: var(--space-16);
    position: relative;
    overflow: hidden;
}

/* ===== HERO SPOTLIGHT EFFECT ===== */
.hero__spotlight {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: 0;
    overflow: hidden;
}

.hero__spotlight-beam {
    position: absolute;
    width: 400px;
    height: 800px;
    background: linear-gradient(
        180deg,
        rgba(147, 51, 234, 0.4) 0%,
        rgba(147, 51, 234, 0.2) 30%,
        rgba(147, 51, 234, 0.05) 70%,
        transparent 100%
    );
    filter: blur(60px);
    transform-origin: top center;
}

.hero__spotlight-beam--left {
    left: 15%;
    top: -10%;
    transform: rotate(-15deg);
    animation: spotlightLeft 8s ease-in-out infinite;
}

.hero__spotlight-beam--right {
    right: 15%;
    top: -10%;
    transform: rotate(15deg);
    animation: spotlightRight 8s ease-in-out infinite;
}

.hero__spotlight-beam--center {
    left: 50%;
    top: -15%;
    transform: translateX(-50%);
    width: 300px;
    background: linear-gradient(
        180deg,
        rgba(168, 85, 247, 0.5) 0%,
        rgba(139, 92, 246, 0.3) 30%,
        rgba(124, 58, 237, 0.1) 60%,
        transparent 100%
    );
    animation: spotlightCenter 6s ease-in-out infinite;
}

.hero__spotlight-glow {
    position: absolute;
    width: 600px;
    height: 600px;
    border-radius: 50%;
    background: radial-gradient(
        circle,
        rgba(147, 51, 234, 0.15) 0%,
        rgba(139, 92, 246, 0.08) 40%,
        transparent 70%
    );
    filter: blur(40px);
    top: -20%;
    left: 50%;
    transform: translateX(-50%);
    animation: glowPulse 4s ease-in-out infinite;
}

@keyframes spotlightLeft {
    0%, 100% {
        transform: rotate(-15deg) translateY(0);
        opacity: 0.8;
    }
    50% {
        transform: rotate(-20deg) translateY(30px);
        opacity: 1;
    }
}

@keyframes spotlightRight {
    0%, 100% {
        transform: rotate(15deg) translateY(0);
        opacity: 0.8;
    }
    50% {
        transform: rotate(20deg) translateY(30px);
        opacity: 1;
    }
}

@keyframes spotlightCenter {
    0%, 100% {
        transform: translateX(-50%) scaleY(1);
        opacity: 0.6;
    }
    50% {
        transform: translateX(-50%) scaleY(1.1);
        opacity: 1;
    }
}

@keyframes glowPulse {
    0%, 100% {
        transform: translateX(-50%) scale(1);
        opacity: 0.6;
    }
    50% {
        transform: translateX(-50%) scale(1.2);
        opacity: 1;
    }
}

/* Light theme: reduce spotlight intensity */
[data-theme="light"] .hero__spotlight-beam {
    opacity: 0.4;
}

[data-theme="light"] .hero__spotlight-glow {
    opacity: 0.3;
}

.hero .container {
    position: relative;
    z-index: 1;
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--space-12);
    align-items: center;
}

.hero__badge {
    display: inline-flex;
    align-items: center;
    gap: var(--space-3);
    padding: var(--space-2) var(--space-4);
    background: var(--color-bg-secondary);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-full);
    margin-bottom: var(--space-6);
}

.avatar-stack {
    display: flex;
}

.avatar-stack .avatar {
    width: 28px;
    height: 28px;
    border-radius: 50%;
    border: 2px solid var(--color-bg-primary);
    margin-left: -8px;
    object-fit: cover;
}

.avatar-stack .avatar:first-child {
    margin-left: 0;
}

.hero__rating {
    display: flex;
    align-items: center;
    gap: var(--space-2);
}

.hero__rating .stars {
    color: #fbbf24;
    font-size: var(--text-sm);
}

.hero__rating-text {
    font-size: var(--text-sm);
    color: var(--color-text-secondary);
}

.hero__title {
    font-size: var(--text-5xl);
    font-weight: var(--font-bold);
    line-height: var(--leading-tight);
    margin-bottom: var(--space-6);
}

.hero__title .highlight {
    color: var(--color-primary);
}

.hero__subtitle {
    font-size: var(--text-xl);
    color: var(--color-text-secondary);
    line-height: var(--leading-relaxed);
    margin-bottom: var(--space-8);
    max-width: 540px;
}

.hero__cta {
    display: flex;
    flex-direction: column;
    gap: var(--space-4);
    margin-bottom: var(--space-10);
}

.hero__trust {
    display: flex;
    flex-direction: column;
    gap: var(--space-4);
}

.hero__trust-text {
    font-size: var(--text-sm);
    color: var(--color-text-tertiary);
}

.hero__logos {
    display: flex;
    align-items: center;
    gap: var(--space-8);
    opacity: 0.6;
}

.hero__logos img {
    height: 24px;
    width: auto;
    filter: grayscale(100%) brightness(2);
}

.hero__image {
    position: relative;
}

.hero__image-wrapper {
    position: relative;
    border-radius: var(--radius-xl);
    overflow: hidden;
    border: 1px solid var(--color-border);
    box-shadow: var(--shadow-xl);
}

.hero__screenshot {
    width: 100%;
    height: auto;
}

.hero__float {
    position: absolute;
    padding: var(--space-4);
    background: var(--color-bg-elevated);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
}

.hero__float--1 {
    top: 10%;
    left: -5%;
}

.hero__float--2 {
    bottom: 15%;
    right: -5%;
}

.stat-card__value {
    display: block;
    font-size: var(--text-2xl);
    font-weight: var(--font-bold);
    color: var(--color-accent-green);
}

.stat-card__label {
    font-size: var(--text-sm);
    color: var(--color-text-secondary);
}

.notification-card {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    font-size: var(--text-sm);
}

.notification-card__icon {
    width: 24px;
    height: 24px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--color-accent-green);
    color: #fff;
    border-radius: 50%;
    font-size: var(--text-xs);
}

/* Hero Background */
.hero__bg {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    z-index: -1;
    overflow: hidden;
}

.hero__gradient {
    position: absolute;
    top: -50%;
    left: 50%;
    transform: translateX(-50%);
    width: 150%;
    height: 100%;
    background: radial-gradient(ellipse at center, rgba(var(--color-primary-rgb), 0.15) 0%, transparent 70%);
}

/* ===== FEATURES GRID ===== */
.features__grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--space-6);
}

.feature-card {
    padding: var(--space-8);
    background: var(--color-bg-secondary);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-xl);
    transition: all var(--transition-base);
}

.feature-card:hover {
    border-color: var(--color-border-hover);
    transform: translateY(-4px);
}

.feature-card__icon {
    width: 48px;
    height: 48px;
    min-width: 48px;
    min-height: 48px;
    max-width: 48px;
    max-height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    background: rgba(var(--color-primary-rgb), 0.1);
    border-radius: var(--radius-lg);
    margin-bottom: var(--space-5);
    color: var(--color-primary);
    overflow: hidden;
}

.feature-card__icon svg {
    width: 24px;
    height: 24px;
    min-width: 24px;
    min-height: 24px;
    max-width: 24px;
    max-height: 24px;
    flex-shrink: 0;
}

.feature-card__title {
    font-size: var(--text-xl);
    font-weight: var(--font-semibold);
    margin-bottom: var(--space-3);
}

.feature-card__description {
    font-size: var(--text-base);
    color: var(--color-text-secondary);
    line-height: var(--leading-relaxed);
    margin-bottom: var(--space-4);
}

.feature-card__link {
    display: inline-flex;
    align-items: center;
    gap: var(--space-2);
    font-size: var(--text-sm);
    font-weight: var(--font-medium);
    color: var(--color-primary);
    transition: gap var(--transition-fast);
}

.feature-card__link:hover {
    gap: var(--space-3);
}

.feature-card__link svg {
    width: 16px;
    height: 16px;
}

/* ===== FEATURE SHOWCASE ===== */
.feature-showcase {
    background: var(--color-bg-secondary);
}

.feature-row {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--space-12);
    align-items: center;
    margin-bottom: var(--space-20);
}

.feature-row:last-child {
    margin-bottom: 0;
}

.feature-row__content {
    order: 2;
}

.feature-row__image {
    order: 1;
}

.feature-row__title {
    font-size: var(--text-3xl);
    font-weight: var(--font-bold);
    margin-bottom: var(--space-4);
}

.feature-row__description {
    font-size: var(--text-lg);
    color: var(--color-text-secondary);
    line-height: var(--leading-relaxed);
    margin-bottom: var(--space-6);
}

.feature-row__list {
    display: flex;
    flex-direction: column;
    gap: var(--space-3);
    margin-bottom: var(--space-8);
}

.feature-row__list li {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    font-size: var(--text-base);
    color: var(--color-text-secondary);
}

.feature-row__list .icon {
    width: 20px;
    height: 20px;
    color: var(--color-accent-green);
}

.feature-row__image img {
    border-radius: var(--radius-xl);
    border: 1px solid var(--color-border);
    box-shadow: var(--shadow-lg);
}

/* ===== PRICING ===== */
.pricing__toggle {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-4);
    margin-bottom: var(--space-12);
}

.pricing__toggle-label {
    font-size: var(--text-sm);
    color: var(--color-text-tertiary);
    transition: color var(--transition-fast);
}

.pricing__toggle-label--active {
    color: var(--color-text-primary);
}

.pricing__toggle-switch {
    width: 48px;
    height: 24px;
    background: var(--color-bg-tertiary);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-full);
    position: relative;
    cursor: pointer;
}

.pricing__toggle-slider {
    position: absolute;
    top: 2px;
    left: 2px;
    width: 18px;
    height: 18px;
    background: var(--color-primary);
    border-radius: 50%;
    transition: transform var(--transition-fast);
}

.pricing__toggle-switch[aria-checked="true"] .pricing__toggle-slider {
    transform: translateX(24px);
}

.pricing__badge {
    display: inline-block;
    padding: var(--space-1) var(--space-2);
    background: rgba(var(--color-primary-rgb), 0.1);
    color: var(--color-primary);
    font-size: var(--text-xs);
    font-weight: var(--font-medium);
    border-radius: var(--radius-sm);
    margin-left: var(--space-2);
}

.pricing__grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--space-6);
}

.pricing-card {
    padding: var(--space-8);
    background: var(--color-bg-secondary);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-xl);
    position: relative;
}

.pricing-card--featured {
    border-color: var(--color-primary);
    background: var(--color-bg-tertiary);
}

.pricing-card__popular {
    position: absolute;
    top: 0;
    left: 50%;
    transform: translate(-50%, -50%);
    padding: var(--space-1) var(--space-4);
    background: var(--color-primary);
    color: #fff;
    font-size: var(--text-xs);
    font-weight: var(--font-medium);
    border-radius: var(--radius-full);
    white-space: nowrap;
}

.pricing-card__header {
    margin-bottom: var(--space-6);
}

.pricing-card__name {
    font-size: var(--text-2xl);
    font-weight: var(--font-bold);
    margin-bottom: var(--space-2);
}

.pricing-card__tagline {
    font-size: var(--text-sm);
    color: var(--color-text-secondary);
}

.pricing-card__price {
    margin-bottom: var(--space-8);
}

.pricing-card__currency {
    font-size: var(--text-xl);
    font-weight: var(--font-medium);
    vertical-align: top;
}

.pricing-card__amount {
    font-size: var(--text-5xl);
    font-weight: var(--font-bold);
}

.pricing-card__period {
    font-size: var(--text-base);
    color: var(--color-text-secondary);
}

.pricing-card__custom {
    font-size: var(--text-3xl);
    font-weight: var(--font-bold);
}

.pricing-card__features {
    display: flex;
    flex-direction: column;
    gap: var(--space-4);
    margin-bottom: var(--space-8);
}

.pricing-card__features li {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    font-size: var(--text-sm);
}

.pricing-card__features .icon {
    width: 18px;
    height: 18px;
    flex-shrink: 0;
}

.pricing-card__features .icon--check {
    color: var(--color-accent-green);
}

.pricing-card__features .icon--x {
    color: var(--color-text-tertiary);
}

.pricing-card__feature--disabled {
    color: var(--color-text-tertiary);
}

.pricing-card__note {
    margin-top: var(--space-4);
    font-size: var(--text-xs);
    color: var(--color-text-tertiary);
    text-align: center;
}

/* ===== TESTIMONIALS ===== */
.testimonials {
    background: var(--color-bg-primary);
}

.testimonials__carousel {
    position: relative;
}

.testimonials__track {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--space-6);
}

.testimonial-card {
    padding: var(--space-8);
    background: var(--color-bg-secondary);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-xl);
}

.testimonial-card__quote {
    font-size: var(--text-lg);
    line-height: var(--leading-relaxed);
    margin-bottom: var(--space-6);
    font-style: normal;
}

.testimonial-card__quote::before {
    content: '"';
}

.testimonial-card__quote::after {
    content: '"';
}

.testimonial-card__author {
    display: flex;
    align-items: center;
    gap: var(--space-4);
}

.testimonial-card__avatar {
    width: 48px;
    height: 48px;
    border-radius: 50%;
    object-fit: cover;
}

.testimonial-card__info {
    flex: 1;
}

.testimonial-card__name {
    display: block;
    font-weight: var(--font-semibold);
    font-style: normal;
}

.testimonial-card__role {
    font-size: var(--text-sm);
    color: var(--color-text-secondary);
}

.testimonial-card__company {
    height: 24px;
    width: auto;
    opacity: 0.6;
}

.testimonials__nav {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-6);
    margin-top: var(--space-8);
}

.testimonials__nav-btn {
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--color-bg-secondary);
    border: 1px solid var(--color-border);
    border-radius: 50%;
    color: var(--color-text-primary);
    transition: all var(--transition-fast);
}

.testimonials__nav-btn:hover {
    background: var(--color-bg-tertiary);
    border-color: var(--color-border-hover);
}

.testimonials__nav-btn svg {
    width: 20px;
    height: 20px;
}

.testimonials__dots {
    display: flex;
    gap: var(--space-2);
}

.testimonials__dot {
    width: 8px;
    height: 8px;
    background: var(--color-border);
    border-radius: 50%;
    transition: all var(--transition-fast);
}

.testimonials__dot--active {
    width: 24px;
    border-radius: var(--radius-full);
    background: var(--color-primary);
}

/* ===== CTA ===== */
.cta {
    position: relative;
    text-align: center;
    padding: var(--space-24) 0;
}

.cta__content {
    position: relative;
    z-index: 1;
}

.cta__title {
    font-size: var(--text-4xl);
    font-weight: var(--font-bold);
    margin-bottom: var(--space-4);
}

.cta__description {
    font-size: var(--text-lg);
    color: var(--color-text-secondary);
    margin-bottom: var(--space-8);
    max-width: 500px;
    margin-left: auto;
    margin-right: auto;
}

.cta__actions {
    display: flex;
    flex-direction: column;
    gap: var(--space-4);
    justify-content: center;
    align-items: center;
    margin-bottom: var(--space-6);
}

.cta__note {
    font-size: var(--text-sm);
    color: var(--color-text-tertiary);
}

.cta__bg {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    z-index: 0;
    overflow: hidden;
}

.cta__gradient {
    position: absolute;
    bottom: -50%;
    left: 50%;
    transform: translateX(-50%);
    width: 150%;
    height: 100%;
    background: radial-gradient(ellipse at center, rgba(var(--color-primary-rgb), 0.1) 0%, transparent 70%);
}

/* ===== FOOTER ===== */
.footer {
    background: var(--color-bg-secondary);
    padding: var(--space-16) 0 var(--space-8);
    border-top: 1px solid var(--color-border);
}

.footer__top {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--space-12);
    margin-bottom: var(--space-12);
}

.footer__brand {
    max-width: 280px;
}

.footer__logo {
    display: inline-block;
    margin-bottom: var(--space-4);
}

.footer__logo img {
    height: 32px;
    width: auto;
    transition: filter var(--transition-fast);
}

/* Light theme: invert white logo to dark */
[data-theme="light"] .footer__logo img {
    filter: invert(1) brightness(0.2);
}

.footer__tagline {
    font-size: var(--text-sm);
    color: var(--color-text-secondary);
    margin-bottom: var(--space-6);
}

.footer__social {
    display: flex;
    gap: var(--space-4);
}

.footer__social-link {
    width: 36px;
    height: 36px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--color-bg-tertiary);
    border: 1px solid var(--color-border);
    border-radius: 50%;
    color: var(--color-text-secondary);
    transition: all var(--transition-fast);
}

.footer__social-link:hover {
    color: var(--color-text-primary);
    border-color: var(--color-border-hover);
}

.footer__social-link svg {
    width: 18px;
    height: 18px;
}

.footer__nav {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-8);
}

@media (min-width: 768px) {
    .footer__nav {
        grid-template-columns: repeat(4, 1fr);
    }
}

.footer__column-title {
    font-size: var(--text-sm);
    font-weight: var(--font-semibold);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: var(--space-4);
}

.footer__list {
    display: flex;
    flex-direction: column;
    gap: var(--space-3);
}

.footer__list a {
    font-size: var(--text-sm);
    color: var(--color-text-secondary);
    transition: color var(--transition-fast);
}

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

.footer__qr {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    gap: var(--space-2);
    margin-top: var(--space-4);
}

.footer__qr img {
    width: 60px;
    height: 60px;
    border-radius: var(--radius-sm);
    background: white;
    padding: 2px;
}

.footer__qr span {
    font-size: var(--text-xs);
    color: var(--color-text-tertiary);
}

.footer__bottom {
    display: flex;
    flex-direction: column;
    gap: var(--space-4);
    padding-top: var(--space-8);
    border-top: 1px solid var(--color-border);
    text-align: center;
}

.footer__copyright {
    font-size: var(--text-sm);
    color: var(--color-text-tertiary);
}

.footer__icp {
    font-size: var(--text-sm);
    color: var(--color-text-tertiary);
    transition: color var(--transition-fast);
}

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

/* ===== ANIMATION SYSTEM ===== */
.animate-hidden {
    opacity: 0;
    transform: translate3d(0, var(--animate-offset-y), 0);
}

.animate-visible {
    opacity: 1;
    transform: translate3d(0, 0, 0);
    transition: opacity var(--animate-duration) var(--animate-easing),
                transform var(--animate-duration) var(--animate-easing);
}

[data-animate="fade"].animate-hidden {
    transform: none;
}

[data-animate="fade-left"].animate-hidden {
    transform: translate3d(-40px, 0, 0);
}

[data-animate="fade-right"].animate-hidden {
    transform: translate3d(40px, 0, 0);
}

[data-animate="scale"].animate-hidden {
    transform: scale(0.95);
}

[data-animate="zoom"].animate-hidden {
    transform: translate3d(0, var(--animate-offset-y), 0) scale(0.95);
}

/* Reduced Motion */
@media (prefers-reduced-motion: reduce) {
    .animate-hidden {
        opacity: 0;
        transform: none;
    }

    .animate-visible {
        transition: opacity 0.3s ease;
    }
}

/* ===== RESPONSIVE ===== */

/* Small (sm): 480px+ */
@media (min-width: 480px) {
    .hero__title {
        font-size: var(--text-6xl);
    }

    .hero__cta {
        flex-direction: row;
    }

    .cta__actions {
        flex-direction: row;
    }
}

/* Medium (md): 768px+ */
@media (min-width: 768px) {
    .section__title {
        font-size: var(--text-5xl);
    }

    .nav__menu {
        display: flex;
    }

    .nav__toggle {
        display: none;
    }

    .hero .container {
        grid-template-columns: 1fr 1fr;
    }

    .hero__title {
        font-size: var(--text-5xl);
    }

    .features__grid {
        grid-template-columns: repeat(2, 1fr);
        gap: var(--space-8);
    }

    .feature-row {
        grid-template-columns: 1fr 1fr;
        gap: var(--space-16);
    }

    .feature-row__content {
        order: 1;
    }

    .feature-row__image {
        order: 2;
    }

    .feature-row--reverse .feature-row__content {
        order: 2;
    }

    .feature-row--reverse .feature-row__image {
        order: 1;
    }

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

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

    .footer__top {
        grid-template-columns: 1.5fr 2fr;
    }

    .footer__nav {
        grid-template-columns: repeat(4, 1fr);
    }

    .footer__bottom {
        flex-direction: row;
        justify-content: space-between;
        text-align: left;
    }
}

/* Large (lg): 1024px+ */
@media (min-width: 1024px) {
    .hero__title {
        font-size: var(--text-6xl);
    }

    .features__grid {
        grid-template-columns: repeat(3, 1fr);
    }

    .pricing__grid {
        grid-template-columns: repeat(3, 1fr);
    }

    .testimonials__track {
        grid-template-columns: repeat(3, 1fr);
    }

    .cta__title {
        font-size: var(--text-5xl);
    }
}

/* Extra Large (xl): 1280px+ */
@media (min-width: 1280px) {
    .hero__title {
        font-size: var(--text-7xl);
    }

    .feature-row {
        gap: var(--space-24);
    }
}

/* Mobile Animation Offset */
@media (max-width: 767px) {
    :root {
        --animate-offset-y: var(--animate-offset-y-mobile);
    }
}

/* ===== UTILITIES ===== */
.text-center {
    text-align: center;
}

.text-gradient {
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-light) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.visually-hidden {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}

/* ===== HERO STATS ===== */
.hero__badge-text {
    font-size: var(--text-sm);
    color: var(--color-text-secondary);
}

/* Hero Trust Bar (DSS: Source Authority) - 横排布局 */
.hero__trust-bar {
    display: flex !important;
    flex-direction: row !important;
    flex-wrap: nowrap !important;
    justify-content: flex-start;
    align-items: center;
    gap: var(--space-6);
    margin-top: var(--space-6);
    padding: var(--space-3) var(--space-5);
    background: rgba(255, 255, 255, 0.03);
    border-radius: var(--radius-lg);
    border: 1px solid var(--color-border);
}

.hero__trust-item {
    display: inline-flex;
    flex-direction: row;
    align-items: center;
    gap: var(--space-2);
    white-space: nowrap;
}

.hero__trust-brand {
    font-size: var(--text-sm);
    font-weight: var(--font-semibold);
}

.hero__trust-brand--baidu {
    color: #2932E1;
}

.hero__trust-brand--volc {
    color: #00D4AA;
}

.hero__trust-brand--cbweekly {
    color: #E74C3C;
}

.hero__trust-label {
    font-size: var(--text-xs);
    color: var(--color-text-tertiary);
}

@media (max-width: 768px) {
    .hero__trust-bar {
        flex-wrap: wrap;
        justify-content: center;
        gap: var(--space-4);
    }

    .hero__trust-brand {
        font-size: var(--text-xs);
    }

    .hero__trust-label {
        font-size: 10px;
    }
}

.hero__stats {
    display: flex;
    gap: var(--space-8);
    margin-top: var(--space-8);
    padding-top: var(--space-8);
    border-top: 1px solid var(--color-border);
}

.hero__stat {
    text-align: left;
}

.hero__stat-value {
    display: block;
    font-size: var(--text-3xl);
    font-weight: var(--font-bold);
    color: var(--color-primary);
    line-height: 1;
    margin-bottom: var(--space-1);
}

.hero__stat-label {
    font-size: var(--text-sm);
    color: var(--color-text-secondary);
}

/* Highlight Stats (DSS: Data Support) - 团队经验数据 */
.hero__stat--highlight .hero__stat-value {
    color: var(--color-accent-orange);
    font-weight: var(--font-extrabold);
}

.hero__stat--highlight .hero__stat-label {
    color: var(--color-text-tertiary);
}

.hero__stat--team .hero__stat-label {
    color: var(--color-text-tertiary);
    font-style: italic;
}

/* ===== SERVICES SECTION ===== */
.services-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--space-6);
}

.services-grid--three {
    grid-template-columns: 1fr;
}

.service-card {
    padding: var(--space-8);
    background: var(--color-bg-secondary);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-xl);
    transition: all var(--transition-base);
    display: flex;
    flex-direction: column;
}

.service-card:hover {
    border-color: var(--color-border-hover);
    transform: translateY(-4px);
}

.service-card--featured {
    background: linear-gradient(135deg, var(--color-bg-tertiary) 0%, var(--color-bg-secondary) 100%);
    border-color: var(--color-primary);
}

.service-card--featured:hover {
    border-color: var(--color-primary-light);
}

.service-card__header {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    margin-bottom: var(--space-6);
}

.service-card__icon {
    width: 56px;
    height: 56px;
    min-width: 56px;
    min-height: 56px;
    max-width: 56px;
    max-height: 56px;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    background: rgba(var(--color-primary-rgb), 0.1);
    border-radius: var(--radius-lg);
    color: var(--color-primary);
    overflow: hidden;
}

.service-card__icon svg {
    width: 28px;
    height: 28px;
    min-width: 28px;
    min-height: 28px;
    max-width: 28px;
    max-height: 28px;
    flex-shrink: 0;
}

.service-card__number {
    font-size: var(--text-sm);
    font-weight: var(--font-bold);
    color: var(--color-primary);
    opacity: 0.6;
}

.service-card__title {
    font-size: var(--text-2xl);
    font-weight: var(--font-bold);
    margin-bottom: var(--space-3);
}

.service-card__description {
    font-size: var(--text-base);
    color: var(--color-text-secondary);
    line-height: var(--leading-relaxed);
    margin-bottom: var(--space-6);
    flex: 1;
}

.service-card__list {
    display: flex;
    flex-direction: column;
    gap: var(--space-3);
    margin-bottom: var(--space-6);
}

.service-card__list li {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    font-size: var(--text-sm);
    color: var(--color-text-secondary);
}

.service-card__list .icon {
    width: 18px;
    height: 18px;
    color: var(--color-accent-green);
    flex-shrink: 0;
}

.service-card__link {
    display: inline-flex;
    align-items: center;
    gap: var(--space-2);
    font-size: var(--text-sm);
    font-weight: var(--font-semibold);
    color: var(--color-primary);
    transition: gap var(--transition-fast);
    margin-top: auto;
}

.service-card__link:hover {
    gap: var(--space-3);
}

.service-card__link svg {
    width: 16px;
    height: 16px;
}

/* ===== TAGS ===== */
.tag {
    display: inline-flex;
    align-items: center;
    padding: var(--space-1) var(--space-3);
    background: rgba(var(--color-primary-rgb), 0.1);
    color: var(--color-primary);
    font-size: var(--text-xs);
    font-weight: var(--font-medium);
    border-radius: var(--radius-full);
    white-space: nowrap;
}

.tag--accent {
    background: rgba(0, 212, 170, 0.1);
    color: var(--color-accent-green);
}

.feature-row__tags {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-2);
    margin-bottom: var(--space-6);
}

/* ===== ABOUT STATS ===== */
.about-stats {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-6);
    margin-top: var(--space-8);
}

.about-stat {
    text-align: center;
    padding: var(--space-6);
    background: var(--color-bg-tertiary);
    border-radius: var(--radius-lg);
}

.about-stat__value {
    display: block;
    font-size: var(--text-4xl);
    font-weight: var(--font-bold);
    color: var(--color-primary);
    line-height: 1;
    margin-bottom: var(--space-2);
}

.about-stat__label {
    font-size: var(--text-sm);
    color: var(--color-text-secondary);
}

/* Team Experience Stats (DSS: Data Support) */
.about-stat--team .about-stat__value,
.about-stat--highlight .about-stat__value {
    color: var(--color-accent-orange);
}

.about-stat--team .about-stat__label,
.about-stat--highlight .about-stat__label {
    color: var(--color-text-tertiary);
}

/* ===== SOLUTIONS GRID ===== */
.solutions-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--space-6);
}

.solution-card {
    padding: var(--space-6);
    background: var(--color-bg-secondary);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-xl);
    transition: all var(--transition-base);
}

.solution-card:hover {
    border-color: var(--color-border-hover);
    transform: translateY(-2px);
}

.solution-card__icon {
    width: 48px;
    height: 48px;
    min-width: 48px;
    min-height: 48px;
    max-width: 48px;
    max-height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    background: rgba(var(--color-primary-rgb), 0.1);
    border-radius: var(--radius-lg);
    margin-bottom: var(--space-4);
    color: var(--color-primary);
    overflow: hidden;
}

.solution-card__icon svg {
    width: 24px;
    height: 24px;
    min-width: 24px;
    min-height: 24px;
    max-width: 24px;
    max-height: 24px;
    flex-shrink: 0;
}

.solution-card__title {
    font-size: var(--text-lg);
    font-weight: var(--font-semibold);
    margin-bottom: var(--space-2);
}

.solution-card__description {
    font-size: var(--text-sm);
    color: var(--color-text-secondary);
    line-height: var(--leading-relaxed);
}

/* ===== IELABS SECTION ===== */
.ielabs {
    background: var(--color-bg-primary);
}

.ielabs__content {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--space-12);
    align-items: center;
}

.ielabs__info {
    order: 2;
}

.ielabs__visual {
    order: 1;
}

.ielabs__title {
    font-size: var(--text-3xl);
    font-weight: var(--font-bold);
    margin-bottom: var(--space-4);
}

.ielabs__description {
    font-size: var(--text-lg);
    color: var(--color-text-secondary);
    line-height: var(--leading-relaxed);
    margin-bottom: var(--space-8);
}

.ielabs__features {
    display: flex;
    flex-direction: column;
    gap: var(--space-4);
    margin-bottom: var(--space-8);
}

.ielabs__feature {
    display: flex;
    align-items: flex-start;
    gap: var(--space-4);
}

.ielabs__feature-icon {
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(var(--color-primary-rgb), 0.1);
    border-radius: var(--radius-md);
    color: var(--color-primary);
    flex-shrink: 0;
}

.ielabs__feature-icon svg {
    width: 20px;
    height: 20px;
}

.ielabs__feature-title {
    font-weight: var(--font-semibold);
    margin-bottom: var(--space-1);
}

.ielabs__feature-text {
    font-size: var(--text-sm);
    color: var(--color-text-secondary);
}

/* ===== ABOUT SECTION ===== */
.about {
    background: var(--color-bg-secondary);
}

.about__content {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--space-12);
    align-items: center;
}

.about__title {
    font-size: var(--text-3xl);
    font-weight: var(--font-bold);
    margin-bottom: var(--space-4);
}

.about__description {
    font-size: var(--text-lg);
    color: var(--color-text-secondary);
    line-height: var(--leading-relaxed);
    margin-bottom: var(--space-6);
}

.about__values {
    display: flex;
    flex-direction: column;
    gap: var(--space-3);
    margin-bottom: var(--space-8);
}

.about__value {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    font-size: var(--text-base);
}

.about__value .icon {
    width: 20px;
    height: 20px;
    color: var(--color-accent-green);
}

/* ===== RESPONSIVE - Services ===== */
@media (min-width: 768px) {
    .services-grid {
        grid-template-columns: repeat(2, 1fr);
    }

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

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

    .ielabs__info {
        order: 1;
    }

    .ielabs__visual {
        order: 2;
    }

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

    .about-stats {
        grid-template-columns: repeat(4, 1fr);
    }
}

@media (min-width: 1024px) {
    .solutions-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

/* ===== MOCKUP STYLES ===== */
.mockup {
    background: var(--color-bg-tertiary);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-xl);
    overflow: hidden;
    box-shadow: var(--shadow-xl);
}

.mockup__header {
    padding: var(--space-3) var(--space-4);
    background: var(--color-bg-elevated);
    border-bottom: 1px solid var(--color-border);
    display: flex;
    align-items: center;
    gap: var(--space-2);
}

.mockup__dot {
    width: 10px;
    height: 10px;
    border-radius: 50%;
}

.mockup__dot--red {
    background: #ff5f56;
}

.mockup__dot--yellow {
    background: #ffbd2e;
}

.mockup__dot--green {
    background: #27ca40;
}

.mockup__content {
    padding: var(--space-6);
    min-height: 200px;
}

.mockup__content svg {
    width: 100%;
    height: auto;
}

/* ===== TRUSTED BY / PARTNERS ===== */
.trusted-by {
    margin-top: var(--space-16);
    text-align: center;
}

.trusted-by__title {
    font-size: var(--text-lg);
    font-weight: var(--font-medium);
    color: var(--color-text-tertiary);
    margin-bottom: var(--space-2);
}

.trusted-by__subtitle {
    font-size: var(--text-sm);
    color: var(--color-text-tertiary);
    margin-bottom: var(--space-8);
}

.trusted-by__logos {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    align-items: center;
    gap: var(--space-8);
}

.trusted-by__logo {
    flex: 0 0 auto;
    opacity: 0.6;
    transition: opacity var(--transition-fast);
}

.trusted-by__logo:hover {
    opacity: 1;
}

.trusted-by__logo svg {
    width: 120px;
    height: 40px;
}

.trusted-by__logo img {
    max-width: 120px;
    max-height: 40px;
    width: auto;
    height: auto;
    object-fit: contain;
    filter: grayscale(100%);
    transition: filter var(--transition-fast);
}

.trusted-by__logo:hover img {
    filter: grayscale(0%);
}

/* ===== LANGUAGE SWITCHER ===== */
.lang-switch {
    display: flex;
    align-items: center;
    gap: var(--space-1);
    padding: var(--space-1);
    background: var(--color-bg-tertiary);
    border-radius: var(--radius-full);
    margin-right: var(--space-2);
}

.lang-switch__btn {
    padding: var(--space-1) var(--space-3);
    font-size: var(--text-sm);
    font-weight: var(--font-medium);
    color: var(--color-text-secondary);
    border-radius: var(--radius-full);
    transition: all var(--transition-fast);
}

.lang-switch__btn:hover {
    color: var(--color-text-primary);
}

.lang-switch__btn--active {
    background: var(--color-primary);
    color: #ffffff;
}

.lang-switch__btn--active:hover {
    color: #ffffff;
}

/* ===== SERVICES GRID - 4 COLUMNS ===== */
.services-grid--four {
    grid-template-columns: 1fr;
}

.service-card--highlight {
    background: linear-gradient(135deg, rgba(var(--color-primary-rgb), 0.08) 0%, var(--color-bg-secondary) 100%);
    border-color: rgba(var(--color-primary-rgb), 0.3);
}

.service-card--highlight:hover {
    border-color: var(--color-primary);
}

.service-card__price {
    display: inline-block;
    padding: var(--space-1) var(--space-3);
    background: rgba(var(--color-primary-rgb), 0.15);
    color: var(--color-primary);
    font-size: var(--text-sm);
    font-weight: var(--font-semibold);
    border-radius: var(--radius-full);
}

.service-card__duration {
    display: block;
    margin-top: auto;
    padding-top: var(--space-4);
    font-size: var(--text-sm);
    color: var(--color-text-tertiary);
    border-top: 1px solid var(--color-border);
}

.service-card__list li::before {
    content: "✓";
    margin-right: var(--space-2);
    color: var(--color-accent-green);
    font-weight: var(--font-bold);
}

/* ===== PRODUCT HIGHLIGHT ===== */
.product-highlight {
    margin-top: var(--space-12);
    padding: var(--space-8);
    background: linear-gradient(135deg, var(--color-bg-tertiary) 0%, var(--color-bg-secondary) 100%);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-xl);
    display: flex;
    flex-direction: column;
    gap: var(--space-6);
}

.product-highlight__badge {
    display: inline-flex;
    align-items: center;
    padding: var(--space-1) var(--space-3);
    background: var(--color-accent-green);
    color: #ffffff;
    font-size: var(--text-xs);
    font-weight: var(--font-semibold);
    border-radius: var(--radius-full);
    width: fit-content;
}

.product-highlight__title {
    font-size: var(--text-2xl);
    font-weight: var(--font-bold);
    margin-bottom: var(--space-2);
}

.product-highlight__description {
    font-size: var(--text-base);
    color: var(--color-text-secondary);
    line-height: var(--leading-relaxed);
    margin-bottom: var(--space-4);
}

/* ===== FEATURES GRID - 4 COLUMNS ===== */
.features__grid--four {
    grid-template-columns: 1fr;
}

.feature-card--highlight {
    background: linear-gradient(135deg, var(--color-bg-tertiary) 0%, var(--color-bg-secondary) 100%);
    border-color: rgba(var(--color-primary-rgb), 0.2);
}

.feature-card--highlight:hover {
    border-color: var(--color-primary);
}

.feature-card__subtitle {
    display: block;
    font-size: var(--text-sm);
    color: var(--color-accent-green);
    font-weight: var(--font-medium);
    margin-bottom: var(--space-3);
}

/* ===== CASES GRID ===== */
.cases-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--space-6);
}

.case-card {
    padding: var(--space-6);
    background: var(--color-bg-secondary);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-xl);
    transition: all var(--transition-base);
}

.case-card:hover {
    border-color: var(--color-border-hover);
    transform: translateY(-4px);
}

.case-card--featured {
    padding: var(--space-8);
    background: linear-gradient(135deg, var(--color-bg-tertiary) 0%, var(--color-bg-secondary) 100%);
    border-color: rgba(var(--color-primary-rgb), 0.3);
}

.case-card--featured:hover {
    border-color: var(--color-primary);
}

.case-card__header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: var(--space-4);
}

.case-card__logo {
    max-width: 80px;
    max-height: 40px;
    width: auto;
    height: auto;
    object-fit: contain;
}

.case-card__icon {
    width: 48px;
    height: 48px;
    min-width: 48px;
    min-height: 48px;
    max-width: 48px;
    max-height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    background: rgba(var(--color-primary-rgb), 0.1);
    border-radius: var(--radius-lg);
    color: var(--color-primary);
    overflow: hidden;
}

.case-card__icon svg {
    width: 24px;
    height: 24px;
    min-width: 24px;
    min-height: 24px;
    max-width: 24px;
    max-height: 24px;
    flex-shrink: 0;
}

.case-card__date {
    font-size: var(--text-xs);
    color: var(--color-text-tertiary);
    background: var(--color-bg-tertiary);
    padding: var(--space-1) var(--space-2);
    border-radius: var(--radius-sm);
}

.case-card__title {
    font-size: var(--text-xl);
    font-weight: var(--font-bold);
    margin-bottom: var(--space-2);
}

.case-card__industry {
    font-size: var(--text-sm);
    color: var(--color-primary);
    margin-bottom: var(--space-4);
}

.case-card__desc {
    font-size: var(--text-sm);
    color: var(--color-text-secondary);
    line-height: var(--leading-relaxed);
}

.case-card__stats {
    display: flex;
    gap: var(--space-6);
    margin-bottom: var(--space-4);
    padding: var(--space-4);
    background: var(--color-bg-elevated);
    border-radius: var(--radius-lg);
}

.case-card__stat {
    text-align: center;
}

.case-card__stat-value {
    display: block;
    font-size: var(--text-3xl);
    font-weight: var(--font-bold);
    color: var(--color-accent-green);
    line-height: 1;
}

.case-card__stat-label {
    font-size: var(--text-xs);
    color: var(--color-text-secondary);
    margin-top: var(--space-1);
}

.case-card__highlights {
    display: flex;
    flex-direction: column;
    gap: var(--space-2);
}

.case-card__highlights li {
    display: flex;
    align-items: flex-start;
    gap: var(--space-2);
    font-size: var(--text-sm);
    color: var(--color-text-secondary);
}

.case-card__highlights li::before {
    content: "•";
    color: var(--color-primary);
    font-weight: var(--font-bold);
    flex-shrink: 0;
}

.case-card__link {
    display: inline-flex;
    align-items: center;
    gap: var(--space-1);
    margin-top: var(--space-4);
    font-size: var(--text-sm);
    font-weight: var(--font-medium);
    color: var(--color-primary);
    text-decoration: none;
    transition: all 0.3s ease;
}

.case-card__link:hover {
    gap: var(--space-2);
    color: var(--color-primary-light);
}

/* ===== PARTNERS SECTION ===== */
.partners-section {
    background: var(--color-bg-secondary);
    padding: var(--space-16) 0;
}

.partners-content {
    text-align: center;
}

.partners-title {
    font-size: var(--text-2xl);
    font-weight: var(--font-bold);
    margin-bottom: var(--space-2);
}

.partners-subtitle {
    font-size: var(--text-base);
    color: var(--color-text-secondary);
    margin-bottom: var(--space-8);
}

.partners-logos {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    align-items: center;
    gap: var(--space-12);
}

.partner-logo {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--space-3);
    padding: var(--space-6);
    background: var(--color-bg-tertiary);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-xl);
    transition: all var(--transition-base);
}

.partner-logo:hover {
    border-color: var(--color-border-hover);
    transform: translateY(-2px);
}

.partner-logo img {
    max-width: 100px;
    max-height: 50px;
    width: auto;
    height: auto;
    object-fit: contain;
}

.partner-logo span {
    font-size: var(--text-sm);
    color: var(--color-text-secondary);
}

/* ===== IELABS SECTION NEW ===== */
.ielabs-section {
    background: var(--color-bg-primary);
}

.ielabs-content {
    text-align: center;
    padding: var(--space-8);
    background: linear-gradient(135deg, var(--color-bg-tertiary) 0%, var(--color-bg-secondary) 100%);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-2xl);
}

.ielabs-header {
    margin-bottom: var(--space-8);
}

.ielabs-title {
    font-size: var(--text-3xl);
    font-weight: var(--font-bold);
    margin-bottom: var(--space-2);
}

.ielabs-subtitle {
    font-size: var(--text-base);
    color: var(--color-text-secondary);
    line-height: var(--leading-relaxed);
}

.ielabs-features {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--space-6);
    margin-bottom: var(--space-8);
}

.ielabs-feature {
    padding: var(--space-6);
    background: var(--color-bg-elevated);
    border-radius: var(--radius-lg);
    text-align: center;
}

.ielabs-feature__icon {
    width: 48px;
    height: 48px;
    min-width: 48px;
    min-height: 48px;
    max-width: 48px;
    max-height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    background: rgba(var(--color-primary-rgb), 0.1);
    border-radius: var(--radius-lg);
    margin: 0 auto var(--space-4);
    color: var(--color-primary);
    overflow: hidden;
}

.ielabs-feature__icon svg {
    width: 24px;
    height: 24px;
    min-width: 24px;
    min-height: 24px;
    max-width: 24px;
    max-height: 24px;
    flex-shrink: 0;
}

.ielabs-feature h4 {
    font-size: var(--text-lg);
    font-weight: var(--font-semibold);
    margin-bottom: var(--space-2);
}

.ielabs-feature p {
    font-size: var(--text-sm);
    color: var(--color-text-secondary);
}

/* ===== RESPONSIVE - NEW COMPONENTS ===== */
@media (min-width: 768px) {
    .services-grid--four {
        grid-template-columns: repeat(2, 1fr);
    }

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

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

    .product-highlight {
        flex-direction: row;
        align-items: center;
        justify-content: space-between;
    }

    .product-highlight__content {
        flex: 1;
    }

    .ielabs-features {
        grid-template-columns: repeat(3, 1fr);
    }
}

@media (min-width: 1024px) {
    .services-grid--four {
        grid-template-columns: repeat(4, 1fr);
    }

    .features__grid--four {
        grid-template-columns: repeat(4, 1fr);
    }

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

    .case-card--featured {
        grid-column: span 1;
    }
}