/* ==================== CSS Variables ==================== */
:root {
    /* Colors */
    --color-primary: #4f46e5;
    --color-primary-dark: #3730a3;
    --color-primary-light: #6366f1;
    --color-primary-lighter: #e0e7ff;
    --color-accent: #f59e0b;
    --color-accent-dark: #d97706;
    --color-accent-light: #fbbf24;
    --color-dark: #0f172a;
    --color-slate-800: #1e293b;
    --color-slate-700: #334155;
    --color-slate-600: #475569;
    --color-slate-500: #64748b;
    --color-slate-400: #94a3b8;
    --color-slate-300: #cbd5e1;
    --color-slate-200: #e2e8f0;
    --color-slate-100: #f1f5f9;
    --color-slate-50: #f8fafc;
    --color-white: #ffffff;
    --color-wechat: #07c160;
    --color-alipay: #1677ff;

    /* Typography */
    --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC",
        "Hiragino Sans GB", "Microsoft YaHei", "Helvetica Neue", Helvetica, Arial,
        sans-serif;
    --font-mono: "SF Mono", "Fira Code", "Fira Mono", "Roboto Mono", monospace;

    /* Spacing */
    --space-xs: 0.5rem;
    --space-sm: 1rem;
    --space-md: 1.5rem;
    --space-lg: 2rem;
    --space-xl: 3rem;
    --space-2xl: 4rem;
    --space-3xl: 6rem;

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

    /* Shadows */
    --shadow-sm: 0 1px 2px rgba(15, 23, 42, 0.06);
    --shadow-md: 0 4px 12px rgba(15, 23, 42, 0.08);
    --shadow-lg: 0 12px 32px rgba(15, 23, 42, 0.12);
    --shadow-xl: 0 24px 48px rgba(15, 23, 42, 0.16);
    --shadow-primary: 0 8px 24px rgba(79, 70, 229, 0.3);

    /* Transitions */
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-fast: all 0.15s ease;

    /* Layout */
    --container-max: 1200px;
    --header-height: 72px;
}

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

html {
    scroll-behavior: smooth;
    scroll-padding-top: var(--header-height);
    -webkit-text-size-adjust: 100%;
    font-size: 16px;
}

body {
    font-family: var(--font-sans);
    color: var(--color-slate-700);
    background: var(--color-white);
    line-height: 1.7;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    overflow-x: hidden;
}

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

a {
    color: var(--color-primary);
    text-decoration: none;
    transition: var(--transition-fast);
}

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

ul {
    list-style: none;
}

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

/* ==================== Accessibility ==================== */
.skip-link {
    position: absolute;
    top: -100px;
    left: 0;
    background: var(--color-primary);
    color: var(--color-white);
    padding: 0.75rem 1.5rem;
    z-index: 1001;
    border-radius: 0 0 var(--radius-sm) 0;
    transition: top 0.2s;
}

.skip-link:focus {
    top: 0;
    color: var(--color-white);
}

:focus-visible {
    outline: 3px solid var(--color-primary-light);
    outline-offset: 2px;
    border-radius: 4px;
}

/* ==================== Layout ==================== */
.container {
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 1.5rem;
}

.section {
    padding: var(--space-3xl) 0;
}

.section-gray {
    background: var(--color-slate-50);
}

.section-header {
    text-align: center;
    max-width: 720px;
    margin: 0 auto var(--space-2xl);
}

.section-tag {
    display: inline-block;
    padding: 0.35rem 1rem;
    background: var(--color-primary-lighter);
    color: var(--color-primary);
    border-radius: var(--radius-full);
    font-size: 0.875rem;
    font-weight: 600;
    margin-bottom: var(--space-sm);
    letter-spacing: 0.05em;
}

.section-title {
    font-size: clamp(1.75rem, 4vw, 2.5rem);
    font-weight: 800;
    color: var(--color-dark);
    line-height: 1.3;
    margin-bottom: var(--space-sm);
    letter-spacing: -0.02em;
}

.section-desc {
    font-size: 1.1rem;
    color: var(--color-slate-500);
    line-height: 1.7;
}

/* ==================== Buttons ==================== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 0.75rem 1.5rem;
    border-radius: var(--radius-full);
    font-size: 1rem;
    font-weight: 600;
    text-decoration: none;
    transition: var(--transition);
    cursor: pointer;
    white-space: nowrap;
    border: 2px solid transparent;
}

.btn-primary {
    background: var(--color-primary);
    color: var(--color-white);
    box-shadow: var(--shadow-primary);
}

.btn-primary:hover {
    background: var(--color-primary-dark);
    color: var(--color-white);
    transform: translateY(-2px);
    box-shadow: 0 12px 28px rgba(79, 70, 229, 0.4);
}

.btn-outline {
    background: transparent;
    color: var(--color-primary);
    border-color: var(--color-slate-300);
}

.btn-outline:hover {
    background: var(--color-primary);
    color: var(--color-white);
    border-color: var(--color-primary);
    transform: translateY(-2px);
}

.btn-white {
    background: var(--color-white);
    color: var(--color-primary);
    box-shadow: var(--shadow-lg);
}

.btn-white:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-xl);
    color: var(--color-primary-dark);
}

.btn-sm {
    padding: 0.5rem 1.25rem;
    font-size: 0.9rem;
}

.btn-lg {
    padding: 0.9rem 2rem;
    font-size: 1.05rem;
}

/* ==================== Header ==================== */
.site-header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    height: var(--header-height);
    background: rgba(255, 255, 255, 0.85);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--color-slate-200);
    z-index: 1000;
    transition: var(--transition);
}

.site-header.scrolled {
    box-shadow: var(--shadow-md);
}

.header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 100%;
}

.logo {
    display: flex;
    align-items: center;
    gap: 0.6rem;
    text-decoration: none;
}

.logo-icon {
    flex-shrink: 0;
}

.logo-text {
    font-size: 1.3rem;
    font-weight: 800;
    color: var(--color-dark);
    letter-spacing: -0.01em;
}

.main-nav {
    display: flex;
}

.nav-list {
    display: flex;
    gap: 0.5rem;
}

.nav-link {
    display: block;
    padding: 0.5rem 1rem;
    color: var(--color-slate-600);
    font-size: 0.95rem;
    font-weight: 500;
    border-radius: var(--radius-sm);
    transition: var(--transition-fast);
}

.nav-link:hover {
    color: var(--color-primary);
    background: var(--color-primary-lighter);
}

.header-cta {
    display: inline-flex;
}

.menu-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    padding: 0.5rem;
}

.menu-toggle span {
    display: block;
    width: 24px;
    height: 2.5px;
    background: var(--color-slate-700);
    border-radius: 2px;
    transition: var(--transition);
}

.menu-toggle.active span:nth-child(1) {
    transform: translateY(7.5px) rotate(45deg);
}

.menu-toggle.active span:nth-child(2) {
    opacity: 0;
}

.menu-toggle.active span:nth-child(3) {
    transform: translateY(-7.5px) rotate(-45deg);
}

/* ==================== Hero Section ==================== */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding-top: var(--header-height);
    overflow: hidden;
    background: linear-gradient(135deg, #f5f3ff 0%, #ede9fe 30%, #fff7ed 100%);
}

.hero-bg-decoration {
    position: absolute;
    inset: 0;
    overflow: hidden;
    pointer-events: none;
}

.blob {
    position: absolute;
    border-radius: 50%;
    filter: blur(80px);
    opacity: 0.5;
}

.blob-1 {
    width: 400px;
    height: 400px;
    background: var(--color-primary-light);
    top: -100px;
    right: -100px;
    animation: float 12s ease-in-out infinite;
}

.blob-2 {
    width: 300px;
    height: 300px;
    background: var(--color-accent);
    bottom: -50px;
    left: -50px;
    animation: float 10s ease-in-out infinite reverse;
}

.blob-3 {
    width: 250px;
    height: 250px;
    background: #ec4899;
    top: 40%;
    left: 50%;
    opacity: 0.2;
    animation: float 15s ease-in-out infinite;
}

@keyframes float {
    0%, 100% { transform: translate(0, 0) scale(1); }
    33% { transform: translate(30px, -30px) scale(1.05); }
    66% { transform: translate(-20px, 20px) scale(0.95); }
}

.hero-inner {
    position: relative;
    z-index: 1;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-2xl);
    align-items: center;
    padding: var(--space-2xl) 1.5rem;
}

.hero-content {
    max-width: 560px;
}

.hero-badge {
    display: inline-block;
    padding: 0.4rem 1rem;
    background: rgba(255, 255, 255, 0.8);
    color: var(--color-primary);
    border-radius: var(--radius-full);
    font-size: 0.85rem;
    font-weight: 600;
    margin-bottom: var(--space-md);
    border: 1px solid rgba(79, 70, 229, 0.15);
}

.hero-title {
    font-size: clamp(2rem, 5vw, 3.5rem);
    font-weight: 900;
    color: var(--color-dark);
    line-height: 1.15;
    letter-spacing: -0.03em;
    margin-bottom: var(--space-md);
}

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

.hero-subtitle {
    font-size: 1.15rem;
    color: var(--color-slate-600);
    line-height: 1.8;
    margin-bottom: var(--space-lg);
}

.hero-cta-group {
    display: flex;
    gap: var(--space-sm);
    flex-wrap: wrap;
    margin-bottom: var(--space-xl);
}

.hero-stats {
    display: flex;
    align-items: center;
    gap: var(--space-lg);
}

.stat-item {
    display: flex;
    flex-direction: column;
}

.stat-number {
    font-size: 1.6rem;
    font-weight: 800;
    color: var(--color-dark);
    line-height: 1;
}

.stat-label {
    font-size: 0.85rem;
    color: var(--color-slate-500);
    margin-top: 0.3rem;
}

.stat-divider {
    width: 1px;
    height: 36px;
    background: var(--color-slate-300);
}

/* Hero Visual - Photo Stack */
.hero-visual {
    display: flex;
    justify-content: center;
    align-items: center;
    perspective: 1000px;
}

.photo-stack {
    position: relative;
    width: 360px;
    height: 360px;
}

.photo-card {
    position: absolute;
    width: 200px;
    height: 260px;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-xl);
    overflow: hidden;
    transition: var(--transition);
    background: var(--color-white);
    padding: 10px;
}

.photo-card-1 {
    top: 0;
    left: 0;
    transform: rotate(-8deg);
    animation: photoFloat 6s ease-in-out infinite;
}

.photo-card-2 {
    top: 40px;
    right: 0;
    transform: rotate(5deg);
    animation: photoFloat 6s ease-in-out infinite 2s;
}

.photo-card-3 {
    bottom: 0;
    left: 50%;
    transform: translateX(-50%) rotate(-2deg);
    animation: photoFloat 6s ease-in-out infinite 4s;
}

@keyframes photoFloat {
    0%, 100% { transform: rotate(var(--rot, 0deg)) translateY(0); }
    50% { transform: rotate(var(--rot, 0deg)) translateY(-15px); }
}

.photo-image {
    width: 100%;
    height: 200px;
    border-radius: var(--radius-md);
}

.photo-grad-1 {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
}

.photo-grad-2 {
    background: linear-gradient(135deg, #f093fb 0%, #f5576c 100%);
}

.photo-grad-3 {
    background: linear-gradient(135deg, #4facfe 0%, #00f2fe 100%);
}

.photo-label {
    text-align: center;
    padding-top: 12px;
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--color-slate-600);
}

/* ==================== Services Section ==================== */
.services-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-lg);
}

.service-card {
    background: var(--color-white);
    border: 1px solid var(--color-slate-200);
    border-radius: var(--radius-xl);
    padding: var(--space-xl) var(--space-lg);
    transition: var(--transition);
    position: relative;
}

.service-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-lg);
    border-color: var(--color-primary-light);
}

.service-card-featured {
    border-color: var(--color-primary);
    border-width: 2px;
    box-shadow: var(--shadow-md);
}

.popular-badge {
    position: absolute;
    top: -12px;
    left: 50%;
    transform: translateX(-50%);
    background: var(--color-accent);
    color: var(--color-white);
    padding: 0.3rem 1rem;
    border-radius: var(--radius-full);
    font-size: 0.8rem;
    font-weight: 700;
    box-shadow: 0 4px 12px rgba(245, 158, 11, 0.4);
}

.service-icon {
    width: 64px;
    height: 64px;
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: var(--space-md);
    color: var(--color-white);
}

.service-icon-1 {
    background: linear-gradient(135deg, #667eea, #764ba2);
}

.service-icon-2 {
    background: linear-gradient(135deg, #f59e0b, #f97316);
}

.service-icon-3 {
    background: linear-gradient(135deg, #06b6d4, #3b82f6);
}

.service-title {
    font-size: 1.35rem;
    font-weight: 700;
    color: var(--color-dark);
    margin-bottom: var(--space-sm);
}

.service-desc {
    color: var(--color-slate-500);
    line-height: 1.7;
    margin-bottom: var(--space-md);
    font-size: 0.95rem;
}

.service-features {
    margin-bottom: var(--space-md);
}

.service-features li {
    display: flex;
    align-items: flex-start;
    gap: 0.5rem;
    padding: 0.35rem 0;
    font-size: 0.9rem;
    color: var(--color-slate-600);
}

.check {
    color: var(--color-primary);
    font-weight: 700;
    flex-shrink: 0;
    margin-top: 1px;
}

.service-link {
    display: inline-flex;
    align-items: center;
    gap: 0.3rem;
    font-weight: 600;
    font-size: 0.95rem;
    color: var(--color-primary);
    transition: var(--transition-fast);
}

.service-link:hover {
    gap: 0.6rem;
    color: var(--color-primary-dark);
}

/* ==================== How It Works ==================== */
.steps-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--space-lg);
    position: relative;
}

.step-item {
    text-align: center;
    position: relative;
}

.step-number {
    width: 56px;
    height: 56px;
    border-radius: 50%;
    background: var(--color-primary);
    color: var(--color-white);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.4rem;
    font-weight: 800;
    margin: 0 auto var(--space-md);
    position: relative;
    z-index: 1;
    box-shadow: var(--shadow-primary);
    transition: var(--transition);
}

.step-item:hover .step-number {
    transform: scale(1.1);
}

.step-connector {
    position: absolute;
    top: 28px;
    left: 50%;
    width: 100%;
    height: 2px;
    background: repeating-linear-gradient(
        to right,
        var(--color-slate-300) 0,
        var(--color-slate-300) 6px,
        transparent 6px,
        transparent 12px
    );
    z-index: 0;
}

.step-item:last-child .step-connector {
    display: none;
}

.step-title {
    font-size: 1.15rem;
    font-weight: 700;
    color: var(--color-dark);
    margin-bottom: 0.5rem;
}

.step-desc {
    font-size: 0.9rem;
    color: var(--color-slate-500);
    line-height: 1.6;
    max-width: 240px;
    margin: 0 auto;
}

/* ==================== Features ==================== */
.features-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-lg);
}

.feature-card {
    text-align: center;
    padding: var(--space-lg);
    border-radius: var(--radius-lg);
    transition: var(--transition);
}

.feature-card:hover {
    background: var(--color-slate-50);
    transform: translateY(-4px);
}

.feature-icon {
    width: 60px;
    height: 60px;
    border-radius: var(--radius-md);
    background: var(--color-primary-lighter);
    color: var(--color-primary);
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto var(--space-md);
    transition: var(--transition);
}

.feature-card:hover .feature-icon {
    background: var(--color-primary);
    color: var(--color-white);
    transform: rotate(-5deg) scale(1.05);
}

.feature-title {
    font-size: 1.2rem;
    font-weight: 700;
    color: var(--color-dark);
    margin-bottom: 0.5rem;
}

.feature-desc {
    font-size: 0.9rem;
    color: var(--color-slate-500);
    line-height: 1.7;
}

/* ==================== Mini Program Section ==================== */
.mp-cards {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-lg);
    max-width: 800px;
    margin: 0 auto;
}

.mp-card {
    background: var(--color-white);
    border: 1px solid var(--color-slate-200);
    border-radius: var(--radius-xl);
    padding: var(--space-xl) var(--space-lg);
    text-align: center;
    transition: var(--transition);
}

.mp-card:hover {
    box-shadow: var(--shadow-lg);
    transform: translateY(-4px);
}

.mp-card-header {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    justify-content: center;
    margin-bottom: var(--space-md);
}

.mp-platform-icon {
    width: 52px;
    height: 52px;
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--color-white);
    flex-shrink: 0;
}

.mp-wechat-icon {
    background: var(--color-wechat);
}

.mp-alipay-icon {
    background: var(--color-alipay);
}

.mp-platform-name {
    font-size: 1.1rem;
    font-weight: 700;
    color: var(--color-dark);
}

.mp-mini-name {
    font-size: 0.85rem;
    color: var(--color-slate-500);
    text-align: left;
}

.mp-qr-area {
    margin: var(--space-md) 0;
}

.qr-placeholder {
    width: 180px;
    height: 180px;
    margin: 0 auto;
    border: 2px dashed var(--color-slate-300);
    border-radius: var(--radius-lg);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: var(--space-sm);
    color: var(--color-slate-400);
    transition: var(--transition);
    background: var(--color-slate-50);
}

.qr-placeholder:hover {
    border-color: var(--color-primary);
    color: var(--color-primary);
    background: var(--color-primary-lighter);
}

.qr-text {
    font-size: 0.9rem;
    font-weight: 500;
}

.mp-instructions {
    font-size: 0.9rem;
    color: var(--color-slate-500);
    line-height: 1.8;
}

.mp-instructions p {
    margin: 0;
}

.mp-search-tip {
    margin-top: 0.5rem !important;
    font-size: 0.85rem;
}

.mp-search-tip strong {
    color: var(--color-primary);
}

.mp-note {
    display: flex;
    align-items: flex-start;
    gap: 0.75rem;
    max-width: 720px;
    margin: var(--space-xl) auto 0;
    padding: var(--space-md);
    background: var(--color-slate-50);
    border-radius: var(--radius-md);
    font-size: 0.9rem;
    color: var(--color-slate-500);
    line-height: 1.7;
}

.mp-note svg {
    flex-shrink: 0;
    margin-top: 2px;
    color: var(--color-primary);
}

/* ==================== Use Cases ==================== */
.uc-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-lg);
}

.uc-item {
    background: var(--color-white);
    border-radius: var(--radius-lg);
    padding: var(--space-lg);
    text-align: center;
    transition: var(--transition);
    border: 1px solid var(--color-slate-200);
}

.uc-item:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-md);
    border-color: var(--color-primary-light);
}

.uc-emoji {
    font-size: 2.5rem;
    margin-bottom: var(--space-sm);
}

.uc-title {
    font-size: 1.15rem;
    font-weight: 700;
    color: var(--color-dark);
    margin-bottom: 0.5rem;
}

.uc-desc {
    font-size: 0.9rem;
    color: var(--color-slate-500);
    line-height: 1.7;
}

/* ==================== FAQ ==================== */
.faq-list {
    max-width: 800px;
    margin: 0 auto;
}

.faq-item {
    background: var(--color-white);
    border: 1px solid var(--color-slate-200);
    border-radius: var(--radius-md);
    margin-bottom: var(--space-sm);
    overflow: hidden;
    transition: var(--transition);
}

.faq-item[open] {
    border-color: var(--color-primary-light);
    box-shadow: var(--shadow-sm);
}

.faq-item:hover {
    border-color: var(--color-slate-400);
}

.faq-item[open]:hover {
    border-color: var(--color-primary);
}

.faq-question {
    padding: var(--space-md) var(--space-lg);
    font-size: 1.05rem;
    font-weight: 600;
    color: var(--color-dark);
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
    list-style: none;
    transition: var(--transition-fast);
}

.faq-question::-webkit-details-marker {
    display: none;
}

.faq-question:hover {
    color: var(--color-primary);
}

.faq-toggle {
    width: 24px;
    height: 24px;
    flex-shrink: 0;
    position: relative;
    margin-left: var(--space-sm);
}

.faq-toggle::before,
.faq-toggle::after {
    content: '';
    position: absolute;
    background: var(--color-slate-400);
    border-radius: 2px;
    transition: var(--transition);
}

.faq-toggle::before {
    top: 50%;
    left: 0;
    width: 100%;
    height: 2px;
    transform: translateY(-50%);
}

.faq-toggle::after {
    left: 50%;
    top: 0;
    width: 2px;
    height: 100%;
    transform: translateX(-50%);
}

.faq-item[open] .faq-toggle::after {
    transform: translateX(-50%) rotate(90deg);
    opacity: 0;
}

.faq-item[open] .faq-toggle::before {
    background: var(--color-primary);
}

.faq-answer {
    padding: 0 var(--space-lg) var(--space-md);
    color: var(--color-slate-600);
    line-height: 1.8;
    font-size: 0.95rem;
}

.faq-answer p {
    margin: 0;
}

/* ==================== CTA Banner ==================== */
.cta-banner {
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
    padding: var(--space-2xl) 0;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.cta-banner::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -10%;
    width: 400px;
    height: 400px;
    background: rgba(255, 255, 255, 0.08);
    border-radius: 50%;
}

.cta-banner::after {
    content: '';
    position: absolute;
    bottom: -30%;
    left: -5%;
    width: 300px;
    height: 300px;
    background: rgba(255, 255, 255, 0.06);
    border-radius: 50%;
}

.cta-inner {
    position: relative;
    z-index: 1;
}

.cta-title {
    font-size: clamp(1.5rem, 3vw, 2.25rem);
    font-weight: 800;
    color: var(--color-white);
    margin-bottom: var(--space-sm);
}

.cta-desc {
    font-size: 1.1rem;
    color: rgba(255, 255, 255, 0.85);
    margin-bottom: var(--space-lg);
}

.cta-buttons {
    display: flex;
    gap: var(--space-sm);
    justify-content: center;
    flex-wrap: wrap;
}

/* ==================== Footer ==================== */
.site-footer {
    background: var(--color-dark);
    color: var(--color-slate-400);
    padding: var(--space-2xl) 0 var(--space-lg);
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1.5fr;
    gap: var(--space-xl);
    margin-bottom: var(--space-xl);
}

.footer-brand {
    max-width: 320px;
}

.footer-logo {
    display: flex;
    align-items: center;
    gap: 0.6rem;
    margin-bottom: var(--space-sm);
}

.footer-logo span {
    font-size: 1.2rem;
    font-weight: 800;
    color: var(--color-white);
}

.footer-desc {
    font-size: 0.9rem;
    line-height: 1.7;
    color: var(--color-slate-500);
}

.footer-heading {
    font-size: 1rem;
    font-weight: 700;
    color: var(--color-white);
    margin-bottom: var(--space-sm);
}

.footer-links li {
    margin-bottom: 0.5rem;
}

.footer-links a {
    color: var(--color-slate-400);
    font-size: 0.9rem;
    transition: var(--transition-fast);
}

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

.footer-platform {
    color: var(--color-slate-300);
    font-weight: 600;
}

.footer-tip {
    font-size: 0.8rem;
    color: var(--color-slate-500);
    margin-top: var(--space-sm);
    line-height: 1.6;
}

.footer-bottom {
    border-top: 1px solid var(--color-slate-800);
    padding-top: var(--space-lg);
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: var(--space-sm);
    font-size: 0.85rem;
}

.footer-icp a {
    color: var(--color-slate-500);
}

.footer-icp a:hover {
    color: var(--color-slate-300);
}

/* ==================== Scroll Animations ==================== */
.reveal {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

.reveal.active {
    opacity: 1;
    transform: translateY(0);
}

.reveal-delay-1 { transition-delay: 0.1s; }
.reveal-delay-2 { transition-delay: 0.2s; }
.reveal-delay-3 { transition-delay: 0.3s; }

/* ==================== Responsive ==================== */
@media (max-width: 968px) {
    .hero-inner {
        grid-template-columns: 1fr;
        text-align: center;
        gap: var(--space-xl);
    }

    .hero-content {
        max-width: 100%;
        margin: 0 auto;
    }

    .hero-cta-group {
        justify-content: center;
    }

    .hero-stats {
        justify-content: center;
    }

    .hero-visual {
        order: -1;
    }

    .photo-stack {
        width: 280px;
        height: 280px;
    }

    .photo-card {
        width: 160px;
        height: 210px;
    }

    .photo-image {
        height: 160px;
    }

    .services-grid {
        grid-template-columns: 1fr;
        max-width: 480px;
        margin: 0 auto;
    }

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

    .steps-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: var(--space-xl) var(--space-lg);
    }

    .step-connector {
        display: none;
    }

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

    .footer-grid {
        grid-template-columns: 1fr 1fr;
        gap: var(--space-lg);
    }

    .footer-brand {
        grid-column: 1 / -1;
        max-width: 100%;
    }
}

@media (max-width: 768px) {
    .main-nav {
        position: fixed;
        top: var(--header-height);
        left: 0;
        right: 0;
        background: var(--color-white);
        border-bottom: 1px solid var(--color-slate-200);
        padding: var(--space-sm) 1.5rem;
        transform: translateY(-150%);
        transition: transform 0.3s ease;
        box-shadow: var(--shadow-lg);
    }

    .main-nav.open {
        transform: translateY(0);
    }

    .nav-list {
        flex-direction: column;
        gap: 0;
    }

    .nav-link {
        padding: 0.75rem 0;
        border-bottom: 1px solid var(--color-slate-100);
    }

    .header-cta {
        display: none;
    }

    .menu-toggle {
        display: flex;
    }

    .section {
        padding: var(--space-2xl) 0;
    }

    .hero {
        min-height: auto;
        padding-top: calc(var(--header-height) + 2rem);
        padding-bottom: var(--space-2xl);
    }

    .hero-stats {
        flex-wrap: wrap;
        gap: var(--space-sm);
    }

    .stat-divider {
        display: none;
    }

    .mp-cards {
        grid-template-columns: 1fr;
    }

    .features-grid {
        grid-template-columns: 1fr;
        max-width: 400px;
        margin: 0 auto;
    }

    .uc-grid {
        grid-template-columns: 1fr;
        max-width: 400px;
        margin: 0 auto;
    }

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

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

@media (max-width: 480px) {
    .container {
        padding: 0 1rem;
    }

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

    .hero-cta-group .btn {
        width: 100%;
    }

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

    .photo-stack {
        width: 240px;
        height: 240px;
    }

    .photo-card {
        width: 140px;
        height: 185px;
    }

    .photo-image {
        height: 140px;
    }
}

/* ==================== Print Styles ==================== */
@media print {
    .site-header,
    .menu-toggle,
    .hero-cta-group,
    .cta-banner,
    .mp-qr-area,
    .footer-links {
        display: none;
    }

    body {
        color: #000;
        background: #fff;
    }

    .section {
        padding: 1rem 0;
    }
}

/* ==================== Reduced Motion ==================== */
@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
        scroll-behavior: auto !important;
    }
}