/* ========================================
   鸽沃教育 - 企业官网样式
   ======================================== */

/* CSS Variables */
:root {
    --primary: #4F46E5;
    --primary-dark: #3730A3;
    --primary-light: #818CF8;
    --primary-bg: #EEF2FF;
    --accent: #06B6D4;
    --success: #10B981;
    --warning: #F59E0B;
    --danger: #EF4444;
    --dark: #1E293B;
    --dark-2: #334155;
    --gray: #64748B;
    --gray-light: #94A3B8;
    --border: #E2E8F0;
    --bg: #F8FAFC;
    --bg-dark: #F1F5F9;
    --white: #FFFFFF;
    --shadow-sm: 0 1px 3px rgba(0,0,0,0.08);
    --shadow: 0 4px 24px rgba(0,0,0,0.08);
    --shadow-lg: 0 12px 48px rgba(0,0,0,0.12);
    --radius: 12px;
    --radius-sm: 8px;
    --radius-lg: 16px;
    --transition: 0.3s ease;
    --font: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', sans-serif;
}

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

html {
    scroll-behavior: smooth;
    -webkit-font-smoothing: antialiased;
}

body {
    font-family: var(--font);
    font-size: 16px;
    line-height: 1.7;
    color: var(--dark);
    background: var(--white);
    overflow-x: hidden;
}

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

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

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

ul { list-style: none; }

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 14px 32px;
    font-size: 15px;
    font-weight: 600;
    border-radius: 50px;
    border: none;
    cursor: pointer;
    transition: all var(--transition);
    gap: 8px;
    letter-spacing: 0.5px;
}

.btn-primary {
    background: var(--primary);
    color: var(--white);
    box-shadow: 0 4px 16px rgba(79,70,229,0.35);
}

.btn-primary:hover {
    background: var(--primary-dark);
    color: var(--white);
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(79,70,229,0.45);
}

.btn-outline {
    background: transparent;
    color: var(--primary);
    border: 2px solid var(--primary);
}

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

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

.btn-white:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.btn-block { width: 100%; }

/* Header */
.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: rgba(255,255,255,0.92);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid transparent;
    transition: all var(--transition);
}

.header.scrolled {
    border-bottom-color: var(--border);
    box-shadow: var(--shadow-sm);
}

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

/* Logo */
.logo {
    display: flex;
    align-items: center;
    gap: 12px;
    text-decoration: none;
    color: var(--dark);
}

.logo-img {
    height: 42px;
    width: auto;
    object-fit: contain;
}

.logo-icon {
    display: none;
}

.logo-text {
    font-size: 20px;
    font-weight: 700;
    letter-spacing: 0.5px;
    white-space: nowrap;
}

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

/* Nav */
.nav-list {
    display: flex;
    align-items: center;
    gap: 8px;
}

.nav-list a {
    display: block;
    padding: 8px 18px;
    color: var(--dark-2);
    font-size: 15px;
    font-weight: 500;
    border-radius: 50px;
    transition: all var(--transition);
}

.nav-list a:hover,
.nav-list a.active {
    color: var(--primary);
    background: var(--primary-bg);
}

/* Menu Toggle */
.menu-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 4px;
    z-index: 1001;
}

.menu-toggle span {
    width: 26px;
    height: 2.5px;
    background: var(--dark);
    border-radius: 2px;
    transition: all var(--transition);
}

.menu-toggle.active span:nth-child(1) {
    transform: rotate(45deg) translate(5px,5px);
}

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

.menu-toggle.active span:nth-child(3) {
    transform: rotate(-45deg) translate(5px,-5px);
}

/* Hero Section */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    overflow: hidden;
    padding-top: 72px;
    background: linear-gradient(180deg, #F8FAFC 0%, #EEF2FF 100%);
}

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

.hero-particles {
    position: absolute;
    inset: 0;
    overflow: hidden;
}

.particle {
    position: absolute;
    border-radius: 50%;
    background: var(--primary);
    opacity: 0.1;
    animation: floatUp 8s infinite ease-in-out;
}

@keyframes floatUp {
    0%, 100% { transform: translateY(0) scale(1); opacity: 0.1; }
    50% { transform: translateY(-40px) scale(1.2); opacity: 0.2; }
}

.hero .container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
    position: relative;
    z-index: 1;
}

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

.hero-title {
    font-size: 48px;
    font-weight: 800;
    line-height: 1.25;
    margin-bottom: 20px;
    color: var(--dark);
}

.hero-title-sub {
    display: block;
    font-size: 16px;
    font-weight: 600;
    color: var(--primary);
    letter-spacing: 3px;
    text-transform: uppercase;
    margin-bottom: 12px;
}

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

.hero-desc {
    font-size: 18px;
    color: var(--gray);
    line-height: 1.8;
    margin-bottom: 36px;
}

.hero-buttons { display: flex; gap: 16px; flex-wrap: wrap; }

.hero-image {
    position: relative;
    display: flex;
    justify-content: center;
}

.hero-mockup {
    position: relative;
    display: flex;
    gap: 20px;
    perspective: 1000px;
}

.mockup-screen {
    width: 240px;
    height: 440px;
    background: var(--white);
    border-radius: 28px;
    box-shadow: var(--shadow-lg);
    overflow: hidden;
    border: 3px solid #E2E8F0;
    transition: transform var(--transition);
    position: relative;
}

.mockup-screen-2 {
    position: absolute;
    right: -60px;
    top: 40px;
    transform: scale(0.9);
    opacity: 0.85;
}

.mockup-header {
    height: 36px;
    background: linear-gradient(135deg, var(--primary), var(--primary-dark));
}

.mockup-body {
    padding: 20px 16px;
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.mockup-card,
.mockup-item {
    background: var(--bg-dark);
    border-radius: var(--radius-sm);
}

.mockup-card {
    height: 60px;
    width: 100%;
}

.mockup-card.small { height: 40px; width: 70%; }

.mockup-list { display: flex; flex-direction: column; gap: 8px; }

.mockup-item {
    height: 16px;
    width: 100%;
}

.mockup-item:nth-child(2) { width: 85%; }
.mockup-item:nth-child(3) { width: 60%; }

.mockup-chart {
    width: 100%;
    height: 80px;
    background: linear-gradient(180deg, var(--primary-bg), var(--white));
    border-radius: var(--radius-sm);
    border: 2px dashed var(--primary-light);
    opacity: 0.5;
}

.mockup-footer {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 48px;
    background: var(--bg);
    border-top: 1px solid var(--border);
}

.hero-wave {
    position: absolute;
    bottom: -2px;
    left: 0;
    width: 100%;
    line-height: 0;
}

.hero-wave svg {
    width: 100%;
    height: 80px;
    fill: var(--white);
}

/* Section Common */
.section-header {
    text-align: center;
    margin-bottom: 56px;
}

.section-tag {
    display: inline-block;
    font-size: 12px;
    font-weight: 700;
    color: var(--primary);
    letter-spacing: 2px;
    text-transform: uppercase;
    margin-bottom: 12px;
    padding: 4px 12px;
    background: var(--primary-bg);
    border-radius: 50px;
}

.section-title {
    font-size: 36px;
    font-weight: 800;
    color: var(--dark);
    margin-bottom: 12px;
}

.section-desc {
    font-size: 17px;
    color: var(--gray);
    max-width: 560px;
    margin: 0 auto;
}

.section-action {
    text-align: center;
    margin-top: 40px;
}

/* Features */
.features {
    padding: 100px 0;
    background: var(--white);
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
}

.feature-card {
    text-align: center;
    padding: 40px 28px;
    border-radius: var(--radius-lg);
    background: var(--white);
    border: 1px solid var(--border);
    transition: all var(--transition);
    position: relative;
    overflow: hidden;
}

.feature-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(90deg, var(--primary), var(--accent));
    opacity: 0;
    transition: opacity var(--transition);
}

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

.feature-card:hover::before { opacity: 1; }

.feature-icon {
    width: 64px;
    height: 64px;
    margin: 0 auto 20px;
    background: var(--primary-bg);
    border-radius: var(--radius);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--primary);
}

.feature-icon svg {
    width: 32px;
    height: 32px;
}

.feature-card h3 {
    font-size: 20px;
    font-weight: 700;
    margin-bottom: 12px;
    color: var(--dark);
}

.feature-card p {
    font-size: 15px;
    color: var(--gray);
    line-height: 1.7;
}

/* Products Preview */
.products-preview {
    padding: 100px 0;
    background: var(--bg);
}

.products-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 28px;
}

.product-card {
    background: var(--white);
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--border);
    transition: all var(--transition);
}

.product-card:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow-lg);
}

.product-image {
    height: 200px;
    position: relative;
    overflow: hidden;
}

.product-school {
    background: linear-gradient(135deg, #4F46E5, #7C3AED);
    position: relative;
}

.product-school::after {
    content: '';
    position: absolute;
    inset: 24px;
    background: rgba(255,255,255,0.15);
    border-radius: var(--radius);
    border: 2px dashed rgba(255,255,255,0.3);
}

.product-parent {
    background: linear-gradient(135deg, #06B6D4, #0891B2);
    position: relative;
}

.product-parent::after {
    content: '';
    position: absolute;
    inset: 24px;
    background: rgba(255,255,255,0.15);
    border-radius: var(--radius);
    border: 2px dashed rgba(255,255,255,0.3);
}

.product-api {
    background: linear-gradient(135deg, #8B5CF6, #6366F1);
    position: relative;
}

.product-api::after {
    content: '';
    position: absolute;
    inset: 24px;
    background: rgba(255,255,255,0.15);
    border-radius: var(--radius);
    border: 2px dashed rgba(255,255,255,0.3);
}

.product-body {
    padding: 28px;
}

.product-badge {
    display: inline-block;
    padding: 4px 12px;
    font-size: 12px;
    font-weight: 600;
    color: var(--primary);
    background: var(--primary-bg);
    border-radius: 50px;
    margin-bottom: 12px;
}

.product-badge.large {
    font-size: 13px;
    padding: 6px 16px;
}

.product-body h3 {
    font-size: 22px;
    font-weight: 700;
    margin-bottom: 10px;
    color: var(--dark);
}

.product-body > p {
    font-size: 15px;
    color: var(--gray);
    margin-bottom: 16px;
    line-height: 1.7;
}

.product-features {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.product-features li {
    font-size: 14px;
    color: var(--dark-2);
    padding-left: 20px;
    position: relative;
}

.product-features li::before {
    content: '';
    position: absolute;
    left: 0;
    top: 50%;
    transform: translateY(-50%);
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: var(--primary-light);
}

/* Stats */
.stats {
    padding: 80px 0;
    background: linear-gradient(135deg, var(--primary), var(--primary-dark));
    position: relative;
    overflow: hidden;
}

.stats::before {
    content: '';
    position: absolute;
    inset: 0;
    background: url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%23ffffff' fill-opacity='0.05'%3E%3Cpath d='M36 34v-4h-2v4h-4v2h4v4h2v-4h4v-2h-4zm0-30V0h-2v4h-4v2h4v4h2V6h4V4h-4zM6 34v-4H4v4H0v2h4v4h2v-4h4v-2H6zM6 4V0H4v4H0v2h4v4h2V6h4V4H6z'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 30px;
    position: relative;
    z-index: 1;
}

.stat-item { text-align: center; }

.stat-number {
    font-size: 48px;
    font-weight: 800;
    color: var(--white);
    line-height: 1.2;
}

.stat-label {
    font-size: 15px;
    color: rgba(255,255,255,0.8);
    margin-top: 8px;
}

/* About Preview */
.about-preview {
    padding: 100px 0;
    background: var(--white);
}

.about-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}

.about-img-wrap { position: relative; }

.about-img-placeholder {
    width: 100%;
    padding-top: 75%;
    background: linear-gradient(135deg, var(--primary-bg), var(--bg-dark));
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    overflow: hidden;
}

.about-img-icon {
    position: absolute;
    inset: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--primary-light);
    opacity: 0.4;
}

.about-img-icon svg {
    width: 120px;
    height: 120px;
}

.about-experience {
    position: absolute;
    bottom: -20px;
    right: -20px;
    background: var(--white);
    padding: 20px 28px;
    border-radius: var(--radius);
    box-shadow: var(--shadow-lg);
    text-align: center;
}

.exp-number {
    display: block;
    font-size: 36px;
    font-weight: 800;
    color: var(--primary);
    line-height: 1.2;
}

.exp-text {
    font-size: 14px;
    color: var(--gray);
}

.about-content { max-width: 480px; }

.about-content .section-tag { margin-bottom: 12px; }
.about-content .section-title { margin-bottom: 20px; text-align: left; }

.about-text {
    font-size: 16px;
    color: var(--gray);
    margin-bottom: 16px;
    line-height: 1.8;
}

.about-values {
    display: flex;
    flex-direction: column;
    gap: 16px;
    margin: 28px 0;
}

.value-item {
    display: flex;
    align-items: flex-start;
    gap: 12px;
}

.value-label {
    font-size: 13px;
    font-weight: 700;
    color: var(--primary);
    background: var(--primary-bg);
    padding: 4px 12px;
    border-radius: 50px;
    white-space: nowrap;
    flex-shrink: 0;
}

.value-text {
    font-size: 15px;
    color: var(--dark-2);
    padding-top: 3px;
}

/* Partners */
.partners {
    padding: 80px 0;
    background: var(--bg);
}

.partners-grid {
    display: grid;
    grid-template-columns: repeat(6, 1fr);
    gap: 16px;
}

.partner-item {
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 28px 16px;
    background: var(--white);
    border-radius: var(--radius);
    border: 1px solid var(--border);
    font-size: 14px;
    font-weight: 600;
    color: var(--gray-light);
    transition: all var(--transition);
}

.partner-item:hover {
    border-color: var(--primary-light);
    color: var(--primary);
    box-shadow: var(--shadow);
}

/* CTA */
.cta {
    padding: 80px 0;
    background: linear-gradient(135deg, var(--primary), var(--accent));
    text-align: center;
    position: relative;
    overflow: hidden;
}

.cta::before {
    content: '';
    position: absolute;
    inset: 0;
    background: url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%23ffffff' fill-opacity='0.08'%3E%3Cpath d='M36 34v-4h-2v4h-4v2h4v4h2v-4h4v-2h-4zm0-30V0h-2v4h-4v2h4v4h2V6h4V4h-4zM6 34v-4H4v4H0v2h4v4h2v-4h4v-2H6zM6 4V0H4v4H0v2h4v4h2V6h4V4H6z'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");
}

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

.cta h2 {
    font-size: 36px;
    font-weight: 800;
    color: var(--white);
    margin-bottom: 12px;
}

.cta p {
    font-size: 17px;
    color: rgba(255,255,255,0.85);
    margin-bottom: 32px;
}

/* Footer */
.footer {
    background: var(--dark);
    color: rgba(255,255,255,0.7);
    padding: 64px 0 0;
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1.5fr;
    gap: 40px;
    padding-bottom: 40px;
    border-bottom: 1px solid rgba(255,255,255,0.1);
}

.footer-col h3 {
    color: var(--white);
    font-size: 17px;
    font-weight: 700;
    margin-bottom: 20px;
}

.footer-about > p {
    font-size: 14px;
    line-height: 1.8;
    margin-bottom: 20px;
}

.footer-social {
    display: flex;
    gap: 12px;
}

.social-link {
    width: 36px;
    height: 36px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(255,255,255,0.1);
    color: rgba(255,255,255,0.7);
    transition: all var(--transition);
}

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

.social-link:hover {
    background: var(--primary);
    color: var(--white);
    transform: translateY(-2px);
}

.footer-links ul,
.footer-products ul,
.footer-contact ul { display: flex; flex-direction: column; gap: 10px; }

.footer-links a,
.footer-products a {
    color: rgba(255,255,255,0.6);
    font-size: 14px;
    transition: all var(--transition);
}

.footer-links a:hover,
.footer-products a:hover {
    color: var(--white);
    padding-left: 4px;
}

.footer-contact li {
    font-size: 14px;
    display: flex;
    align-items: center;
    gap: 8px;
}

.footer-contact svg {
    flex-shrink: 0;
    opacity: 0.6;
}

.footer-bottom {
    padding: 24px 0;
    text-align: center;
    font-size: 13px;
    color: rgba(255,255,255,0.4);
}

.footer-bottom a {
    color: rgba(255,255,255,0.5);
}

/* Page Banner */
.page-banner {
    padding: 140px 0 60px;
    background: linear-gradient(135deg, var(--primary), var(--primary-dark));
    text-align: center;
    position: relative;
    overflow: hidden;
}

.page-banner::before {
    content: '';
    position: absolute;
    inset: 0;
    background: url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%23ffffff' fill-opacity='0.05'%3E%3Cpath d='M36 34v-4h-2v4h-4v2h4v4h2v-4h4v-2h-4zm0-30V0h-2v4h-4v2h4v4h2V6h4V4h-4z'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");
}

.page-banner h1 {
    font-size: 40px;
    font-weight: 800;
    color: var(--white);
    position: relative;
    z-index: 1;
}

.breadcrumb {
    margin-top: 12px;
    font-size: 15px;
    color: rgba(255,255,255,0.7);
    position: relative;
    z-index: 1;
}

.breadcrumb a {
    color: rgba(255,255,255,0.9);
}

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

/* About Page */
.about-intro { padding: 80px 0; }

.about-detail-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}

.about-detail-img {
    padding-top: 70%;
    position: relative;
    border-radius: var(--radius-lg);
    overflow: hidden;
}

.about-detail-placeholder {
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, #EEF2FF, #E0E7FF);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--primary-light);
}

.about-detail-content h2 {
    font-size: 32px;
    font-weight: 800;
    margin-bottom: 24px;
    color: var(--dark);
}

.about-detail-content p {
    font-size: 16px;
    color: var(--gray);
    line-height: 1.9;
    margin-bottom: 16px;
}

/* Mission */
.mission {
    padding: 80px 0;
    background: var(--bg);
}

.mission-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 28px;
}

.mission-card {
    text-align: center;
    padding: 48px 32px;
    background: var(--white);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
    transition: all var(--transition);
}

.mission-card:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow-lg);
}

.mission-icon {
    width: 72px;
    height: 72px;
    margin: 0 auto 24px;
    background: var(--primary-bg);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--primary);
}

.mission-icon svg {
    width: 36px;
    height: 36px;
}

.mission-card h3 {
    font-size: 20px;
    font-weight: 700;
    margin-bottom: 12px;
    color: var(--dark);
}

.mission-card p {
    font-size: 15px;
    color: var(--gray);
    line-height: 1.8;
}

/* Timeline */
.timeline-section { padding: 80px 0; }

.timeline {
    max-width: 700px;
    margin: 0 auto;
    position: relative;
    padding-left: 40px;
}

.timeline::before {
    content: '';
    position: absolute;
    left: 19px;
    top: 8px;
    bottom: 8px;
    width: 2px;
    background: var(--border);
}

.timeline-item {
    position: relative;
    padding-bottom: 40px;
}

.timeline-item:last-child { padding-bottom: 0; }

.timeline-dot {
    position: absolute;
    left: -40px;
    top: 8px;
    width: 40px;
    height: 40px;
    background: var(--white);
    border: 3px solid var(--primary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1;
}

.timeline-dot::after {
    content: '';
    width: 12px;
    height: 12px;
    background: var(--primary);
    border-radius: 50%;
}

.timeline-content {
    background: var(--bg);
    padding: 24px;
    border-radius: var(--radius);
    border-left: 3px solid var(--primary);
}

.timeline-year {
    font-size: 14px;
    font-weight: 700;
    color: var(--primary);
}

.timeline-content h4 {
    font-size: 18px;
    font-weight: 700;
    margin: 4px 0 8px;
    color: var(--dark);
}

.timeline-content p {
    font-size: 14px;
    color: var(--gray);
    line-height: 1.7;
}

/* Product Detail Page */
.product-detail { padding: 80px 0; }

.bg-light { background: var(--bg); }

.product-detail-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}

.product-detail-grid.reverse {
    direction: rtl;
}

.product-detail-grid.reverse > * {
    direction: ltr;
}

.product-detail-content h2 {
    font-size: 32px;
    font-weight: 800;
    margin: 12px 0 16px;
    color: var(--dark);
}

.product-detail-desc {
    font-size: 16px;
    color: var(--gray);
    line-height: 1.8;
    margin-bottom: 28px;
}

.product-detail-features {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
}

.pdf-item {
    padding: 16px;
    background: var(--white);
    border-radius: var(--radius);
    border: 1px solid var(--border);
}

.pdf-item h4 {
    font-size: 15px;
    font-weight: 600;
    margin-bottom: 6px;
    color: var(--dark);
}

.pdf-item p {
    font-size: 13px;
    color: var(--gray);
    line-height: 1.6;
}

/* Product Showcase */
.product-showcase {
    display: flex;
    justify-content: center;
}

.showcase-screen {
    width: 260px;
    background: var(--white);
    border-radius: 24px;
    box-shadow: var(--shadow-lg);
    overflow: hidden;
    border: 3px solid var(--border);
}

.showcase-header {
    padding: 12px 16px;
    background: linear-gradient(135deg, var(--primary), var(--primary-dark));
    color: var(--white);
    font-size: 13px;
    font-weight: 600;
}

.showcase-body {
    padding: 20px 16px;
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.showcase-stat {
    background: var(--primary-bg);
    border-radius: var(--radius-sm);
    padding: 12px;
    text-align: center;
}

.showcase-stat-num {
    display: block;
    font-size: 28px;
    font-weight: 800;
    color: var(--primary);
}

.showcase-stat-label {
    font-size: 12px;
    color: var(--gray);
}

.showcase-list-title {
    font-size: 13px;
    font-weight: 600;
    color: var(--dark-2);
}

.showcase-item {
    height: 14px;
    background: var(--bg-dark);
    border-radius: 4px;
    width: 100%;
}

.showcase-item.short { width: 65%; }

.showcase-avatar {
    width: 48px;
    height: 48px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--accent), var(--primary));
    margin: 0 auto 4px;
}

.showcase-name {
    text-align: center;
    font-size: 14px;
    font-weight: 600;
    color: var(--dark);
}

.showcase-card {
    background: var(--bg-dark);
    border-radius: var(--radius-sm);
    padding: 12px;
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.showcase-card-row {
    height: 10px;
    background: var(--border);
    border-radius: 3px;
    width: 100%;
}

.showcase-card-row.short { width: 70%; }

/* API Showcase */
.api-showcase { width: 100%; max-width: 400px; }

.api-feature-cards {
    display: flex;
    flex-direction: column;
    gap: 14px;
}

.api-feature-card {
    display: flex;
    align-items: center;
    gap: 16px;
    padding: 18px 20px;
    background: var(--white);
    border-radius: var(--radius);
    border: 1px solid var(--border);
    box-shadow: var(--shadow-sm);
    transition: all var(--transition);
}

.api-feature-card:hover {
    transform: translateX(6px);
    border-color: var(--primary-light);
    box-shadow: var(--shadow);
}

.api-feature-icon {
    width: 48px;
    height: 48px;
    background: var(--primary-bg);
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 24px;
    flex-shrink: 0;
}

.api-feature-text {
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.api-feature-text strong {
    font-size: 15px;
    color: var(--dark);
    font-weight: 700;
}

.api-feature-text span {
    font-size: 13px;
    color: var(--gray);
    line-height: 1.4;
}

.api-code-block {
    display: none;
}

.api-code-block pre {
    color: #E2E8F0;
    font-family: 'SF Mono', 'Fira Code', 'Consolas', monospace;
    font-size: 13px;
    line-height: 1.8;
    white-space: pre;
}

/* Custom Service */
.custom-service { padding: 80px 0; }

.custom-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
}

.custom-item {
    text-align: center;
    padding: 36px 24px;
    background: var(--white);
    border-radius: var(--radius);
    border: 1px solid var(--border);
    transition: all var(--transition);
}

.custom-item:hover {
    border-color: var(--primary-light);
    box-shadow: var(--shadow);
}

.custom-item h3 {
    font-size: 18px;
    font-weight: 700;
    margin-bottom: 10px;
    color: var(--dark);
}

.custom-item p {
    font-size: 14px;
    color: var(--gray);
    line-height: 1.6;
}

/* News Page */
.news-list { padding: 60px 0 80px; }

.news-grid {
    display: grid;
    gap: 24px;
}

.news-card {
    display: flex;
    gap: 24px;
    padding: 28px;
    background: var(--white);
    border-radius: var(--radius);
    border: 1px solid var(--border);
    transition: all var(--transition);
    align-items: flex-start;
}

.news-card:hover {
    border-color: var(--primary-light);
    box-shadow: var(--shadow);
    transform: translateX(4px);
}

.news-date {
    text-align: center;
    min-width: 64px;
    padding: 12px 8px;
    background: var(--primary-bg);
    border-radius: var(--radius-sm);
    flex-shrink: 0;
}

.news-day {
    display: block;
    font-size: 28px;
    font-weight: 800;
    color: var(--primary);
    line-height: 1.2;
}

.news-month {
    display: block;
    font-size: 12px;
    color: var(--gray);
    margin-top: 4px;
}

.news-body h3 {
    font-size: 20px;
    font-weight: 700;
    margin-bottom: 10px;
    color: var(--dark);
    line-height: 1.4;
}

.news-body p {
    font-size: 15px;
    color: var(--gray);
    line-height: 1.7;
    margin-bottom: 12px;
}

.news-link {
    font-size: 14px;
    font-weight: 600;
    color: var(--primary);
}

/* Contact Page */
.contact-section { padding: 80px 0; }

.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
}

.contact-info h2 {
    font-size: 32px;
    font-weight: 800;
    margin-bottom: 16px;
    color: var(--dark);
}

.contact-intro {
    font-size: 16px;
    color: var(--gray);
    line-height: 1.8;
    margin-bottom: 36px;
}

.contact-methods { display: flex; flex-direction: column; gap: 20px; }

.contact-method {
    display: flex;
    gap: 16px;
    align-items: flex-start;
}

.contact-icon {
    width: 52px;
    height: 52px;
    background: var(--primary-bg);
    border-radius: var(--radius);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--primary);
    flex-shrink: 0;
}

.contact-detail h4 {
    font-size: 16px;
    font-weight: 600;
    color: var(--dark);
    margin-bottom: 4px;
}

.contact-detail p {
    font-size: 15px;
    color: var(--gray);
}

/* Contact Info Centered */
.contact-info-centered {
    max-width: 900px;
    margin: 0 auto;
    text-align: center;
}

.contact-info-centered .contact-intro {
    max-width: 600px;
    margin: 0 auto 50px;
    font-size: 17px;
    line-height: 1.9;
}

.contact-methods-centered {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
}

.contact-methods-centered .contact-method {
    flex-direction: column;
    align-items: center;
    text-align: center;
    padding: 32px 16px;
    background: var(--white);
    border-radius: var(--radius);
    border: 1px solid var(--border);
    box-shadow: var(--shadow-sm);
    transition: all var(--transition);
}

.contact-methods-centered .contact-method:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow);
    border-color: var(--primary-light);
}

.contact-methods-centered .contact-icon {
    width: 60px;
    height: 60px;
    margin-bottom: 14px;
}

.contact-methods-centered .contact-detail h4 {
    margin-bottom: 6px;
}

.contact-methods-centered .contact-detail p {
    font-size: 14px;
}

/* Contact Form (hidden - removed) */
.contact-form-wrap {
    display: none;
}

.contact-form { display: flex; flex-direction: column; gap: 20px; }

.form-group { display: flex; flex-direction: column; gap: 6px; }

.form-group label {
    font-size: 14px;
    font-weight: 600;
    color: var(--dark-2);
}

.form-group label span { color: var(--danger); }

.form-group input,
.form-group textarea {
    padding: 12px 16px;
    font-size: 15px;
    border: 2px solid var(--border);
    border-radius: var(--radius-sm);
    background: var(--white);
    transition: all var(--transition);
    font-family: var(--font);
    outline: none;
}

.form-group input:focus,
.form-group textarea:focus {
    border-color: var(--primary);
    box-shadow: 0 0 0 4px rgba(79,70,229,0.1);
}

.form-group textarea { resize: vertical; min-height: 120px; }

/* FAQ */
.faq-section { padding: 80px 0; }

.faq-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 24px;
}

.faq-item {
    background: var(--white);
    padding: 28px;
    border-radius: var(--radius);
    border: 1px solid var(--border);
    transition: all var(--transition);
}

.faq-item:hover { border-color: var(--primary-light); }

.faq-item h4 {
    font-size: 17px;
    font-weight: 600;
    color: var(--dark);
    margin-bottom: 10px;
}

.faq-item p {
    font-size: 15px;
    color: var(--gray);
    line-height: 1.7;
}

/* Back to Top */
.back-to-top {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 44px;
    height: 44px;
    background: var(--primary);
    color: var(--white);
    border: none;
    border-radius: 50%;
    cursor: pointer;
    font-size: 20px;
    box-shadow: var(--shadow);
    opacity: 0;
    pointer-events: none;
    transition: all var(--transition);
    z-index: 999;
    display: flex;
    align-items: center;
    justify-content: center;
}

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

.back-to-top:hover {
    background: var(--primary-dark);
    transform: translateY(-4px);
}

/* Form Success Message */
.form-success {
    display: none;
    padding: 20px;
    background: #ECFDF5;
    border: 1px solid #6EE7B7;
    border-radius: var(--radius);
    text-align: center;
    color: #065F46;
    font-weight: 600;
}

/* Responsive */
@media (max-width: 1024px) {
    .hero .container {
        grid-template-columns: 1fr;
    }
    .hero-image { display: none; }
    .hero-title { font-size: 36px; }
    .features-grid { grid-template-columns: repeat(2, 1fr); }
    .products-grid { grid-template-columns: repeat(2, 1fr); }
    .stats-grid { grid-template-columns: repeat(2, 1fr); }
    .about-grid { grid-template-columns: 1fr; }
    .about-content { max-width: 100%; }
    .product-detail-grid { grid-template-columns: 1fr; }
    .product-detail-grid.reverse { direction: ltr; }
    .product-detail-image { order: -1; }
    .product-detail-grid.reverse .product-detail-image { order: -1; }
    .contact-grid { grid-template-columns: 1fr; }
    .footer-grid { grid-template-columns: repeat(2, 1fr); }
    .partners-grid { grid-template-columns: repeat(3, 1fr); }
    .mission-grid { grid-template-columns: 1fr; }
    .custom-grid { grid-template-columns: repeat(2, 1fr); }
    .about-detail-grid { grid-template-columns: 1fr; }
}

@media (max-width: 768px) {
    .menu-toggle { display: flex; }

    .nav {
        position: fixed;
        top: 0;
        right: -100%;
        width: 280px;
        height: 100vh;
        background: var(--white);
        box-shadow: var(--shadow-lg);
        padding: 80px 30px 30px;
        transition: right var(--transition);
        z-index: 1000;
    }

    .nav.active { right: 0; }

    .nav-list {
        flex-direction: column;
        gap: 4px;
    }

    .nav-list a {
        padding: 12px 16px;
        font-size: 16px;
        border-radius: var(--radius-sm);
    }

    .hero-title { font-size: 30px; }
    .hero-desc { font-size: 16px; }
    .section-title { font-size: 28px; }
    .features-grid { grid-template-columns: 1fr; }
    .products-grid { grid-template-columns: 1fr; }
    .stats-grid { grid-template-columns: repeat(2, 1fr); }
    .stat-number { font-size: 36px; }
    .footer-grid { grid-template-columns: 1fr; }
    .partners-grid { grid-template-columns: repeat(2, 1fr); }
    .product-detail-features { grid-template-columns: 1fr; }
    .custom-grid { grid-template-columns: 1fr; }
    .faq-grid { grid-template-columns: 1fr; }
    .news-card { flex-direction: column; }
    .timeline { padding-left: 30px; }
    .timeline-dot { left: -30px; width: 32px; height: 32px; }
    .contact-form-wrap { padding: 28px 20px; }
    .contact-methods-centered { grid-template-columns: repeat(2, 1fr); }
    .api-feature-cards { gap: 10px; }
    .api-feature-card { padding: 14px 16px; }
}

@media (max-width: 480px) {
    .contact-methods-centered { grid-template-columns: 1fr; }
}

/* Mobile nav overlay */
.nav-overlay {
    position: fixed;
    inset: 0;
    background: rgba(0,0,0,0.3);
    z-index: 999;
    display: none;
}

.nav-overlay.active { display: block; }