* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --primary: #e63946;
    --primary-dark: #c1121f;
    --primary-light: #ff6b6b;
    --accent: #ff8c42;
    --dark: #0a0a0a;
    --dark-2: #141414;
    --dark-3: #1e1e1e;
    --gray-900: #2d2d2d;
    --gray-700: #4a4a4a;
    --gray-500: #8a8a8a;
    --gray-300: #c5c5c5;
    --gray-100: #f5f5f5;
    --white: #ffffff;
    --bg: #0f0f0f;
    --bg-light: #fafafa;
    --gradient-primary: linear-gradient(135deg, #e63946 0%, #ff6b35 100%);
    --gradient-dark: linear-gradient(135deg, #0f0f0f 0%, #1a1a2e 100%);
    --shadow-sm: 0 2px 8px rgba(0,0,0,0.08);
    --shadow-md: 0 4px 16px rgba(0,0,0,0.12);
    --shadow-lg: 0 8px 32px rgba(0,0,0,0.16);
    --shadow-xl: 0 16px 48px rgba(0,0,0,0.24);
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --radius: 12px;
    --radius-lg: 20px;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Noto Sans SC', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    background: var(--white);
    color: var(--gray-900);
    line-height: 1.7;
    overflow-x: hidden;
}

.container {
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 24px;
}

/* Navigation */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    transition: var(--transition);
    border-bottom: 1px solid rgba(0,0,0,0.06);
}

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

.nav-container {
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 24px;
    height: 72px;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.nav-logo {
    display: flex;
    align-items: center;
    gap: 12px;
}

.logo-icon svg {
    display: block;
}

.logo-text {
    display: flex;
    flex-direction: column;
    line-height: 1.2;
}

.logo-main {
    font-size: 20px;
    font-weight: 700;
    color: var(--dark);
    letter-spacing: -0.5px;
}

.logo-sub {
    font-size: 10px;
    color: var(--gray-500);
    letter-spacing: 2px;
    text-transform: uppercase;
}

.nav-menu {
    display: flex;
    align-items: center;
    list-style: none;
    gap: 4px;
}

.nav-link {
    display: block;
    padding: 8px 16px;
    font-size: 14px;
    font-weight: 500;
    color: var(--gray-700);
    text-decoration: none;
    border-radius: 8px;
    transition: var(--transition);
    position: relative;
}

.nav-link:hover,
.nav-link.active {
    color: var(--primary);
    background: rgba(230, 57, 70, 0.08);
}

.nav-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    cursor: pointer;
    padding: 8px;
}

.nav-toggle span {
    width: 24px;
    height: 2px;
    background: var(--dark);
    border-radius: 2px;
    transition: var(--transition);
}

.nav-toggle.active span:nth-child(1) {
    transform: rotate(45deg) translate(6px, 6px);
}

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

.nav-toggle.active span:nth-child(3) {
    transform: rotate(-45deg) translate(6px, -6px);
}

/* Hero */
.hero {
    min-height: 100vh;
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
    padding: 120px 24px 80px;
}

.hero-bg {
    position: absolute;
    inset: 0;
    background: url('../images/hero-banner.jpg') center/cover no-repeat;
    filter: brightness(0.35);
}

.hero-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, rgba(10,10,10,0.9) 0%, rgba(30,10,10,0.8) 50%, rgba(10,10,10,0.9) 100%);
}

.hero-content {
    position: relative;
    z-index: 2;
    max-width: 900px;
    text-align: center;
    color: var(--white);
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 8px 20px;
    background: rgba(230, 57, 70, 0.2);
    border: 1px solid rgba(230, 57, 70, 0.4);
    border-radius: 100px;
    font-size: 13px;
    margin-bottom: 32px;
    animation: fadeInUp 0.6s ease both;
}

.badge-dot {
    width: 8px;
    height: 8px;
    background: var(--primary);
    border-radius: 50%;
    animation: pulse 2s infinite;
}

.hero-title {
    font-size: clamp(36px, 6vw, 64px);
    font-weight: 900;
    line-height: 1.15;
    margin-bottom: 24px;
    animation: fadeInUp 0.7s ease 0.1s both;
}

.title-main {
    display: block;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.title-divider {
    display: block;
    margin: 8px 0;
    color: var(--primary);
}

.title-sub {
    display: block;
    font-size: clamp(28px, 4vw, 48px);
    -webkit-text-fill-color: var(--white);
}

.hero-desc {
    font-size: clamp(14px, 1.5vw, 17px);
    line-height: 1.8;
    color: rgba(255,255,255,0.85);
    margin-bottom: 40px;
    animation: fadeInUp 0.7s ease 0.2s both;
}

.hero-buttons {
    display: flex;
    gap: 16px;
    justify-content: center;
    flex-wrap: wrap;
    margin-bottom: 64px;
    animation: fadeInUp 0.7s ease 0.3s both;
}

.btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 14px 28px;
    border-radius: 12px;
    font-size: 15px;
    font-weight: 600;
    text-decoration: none;
    transition: var(--transition);
    cursor: pointer;
    border: none;
    font-family: inherit;
}

.btn-lg {
    padding: 18px 36px;
    font-size: 16px;
    border-radius: 14px;
}

.btn-primary {
    background: var(--gradient-primary);
    color: var(--white);
    box-shadow: 0 4px 20px rgba(230, 57, 70, 0.4);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 32px rgba(230, 57, 70, 0.5);
}

.btn-outline {
    background: transparent;
    color: var(--white);
    border: 2px solid rgba(255,255,255,0.3);
}

.btn-outline:hover {
    background: rgba(255,255,255,0.1);
    border-color: rgba(255,255,255,0.6);
}

.btn-accent {
    background: var(--accent);
    color: var(--white);
}

.btn-accent:hover {
    background: #ff7a1a;
    transform: translateY(-2px);
}

.btn-block {
    width: 100%;
    justify-content: center;
}

.hero-stats {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 24px;
    flex-wrap: nowrap;
    animation: fadeInUp 0.7s ease 0.4s both;
}

.stat-item {
    text-align: center;
    display: inline-flex;
    align-items: baseline;
    gap: 2px;
    white-space: nowrap;
}

.stat-num {
    font-size: 36px;
    font-weight: 900;
    color: var(--primary);
    line-height: 1;
    display: inline;
}

.stat-suffix {
    font-size: 20px;
    font-weight: 700;
    color: var(--primary);
    display: inline;
}

.stat-label {
    font-size: 13px;
    color: rgba(255,255,255,0.7);
    margin-left: 6px;
    white-space: nowrap;
}

.stat-divider {
    width: 1px;
    height: 32px;
    background: rgba(255,255,255,0.2);
    flex-shrink: 0;
}

.scroll-indicator {
    position: absolute;
    bottom: 32px;
    left: 50%;
    transform: translateX(-50%);
    width: 24px;
    height: 40px;
    border: 2px solid rgba(255,255,255,0.4);
    border-radius: 12px;
    display: flex;
    justify-content: center;
    padding-top: 8px;
}

.scroll-indicator span {
    width: 4px;
    height: 8px;
    background: rgba(255,255,255,0.6);
    border-radius: 2px;
    animation: scrollDown 1.5s infinite;
}

/* Section Common */
.section-header {
    text-align: center;
    margin-bottom: 64px;
}

.section-tag {
    display: inline-block;
    font-size: 13px;
    font-weight: 700;
    letter-spacing: 3px;
    color: var(--primary);
    margin-bottom: 12px;
}

.section-tag.light {
    color: rgba(255,255,255,0.8);
}

.section-title {
    font-size: clamp(28px, 4vw, 42px);
    font-weight: 900;
    color: var(--dark);
    margin-bottom: 16px;
}

.section-subtitle {
    font-size: 16px;
    color: var(--gray-500);
    max-width: 640px;
    margin: 0 auto;
}

/* About */
.about {
    padding: 120px 0;
    background: var(--bg-light);
}

.about-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 64px;
    align-items: start;
}

.about-text p {
    font-size: 15px;
    color: var(--gray-700);
    margin-bottom: 20px;
    line-height: 1.9;
}

.about-text strong {
    color: var(--primary);
}

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

.feature-card {
    padding: 28px 24px;
    background: var(--white);
    border-radius: var(--radius);
    border: 1px solid rgba(0,0,0,0.06);
    transition: var(--transition);
    text-align: center;
}

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

.feature-icon {
    width: 64px;
    height: 64px;
    border-radius: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 16px;
    color: var(--white);
}

.icon-1 { background: linear-gradient(135deg, #e63946, #ff6b6b); }
.icon-2 { background: linear-gradient(135deg, #4361ee, #4895ef); }
.icon-3 { background: linear-gradient(135deg, #ff8c42, #ffb347); }
.icon-4 { background: linear-gradient(135deg, #06d6a0, #118ab2); }

.feature-card h3 {
    font-size: 16px;
    font-weight: 700;
    color: var(--dark);
    margin-bottom: 8px;
}

.feature-card p {
    font-size: 13px;
    color: var(--gray-500);
    line-height: 1.6;
}

/* Products */
.products {
    padding: 120px 0;
    background: var(--white);
}

.products-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}

.product-card {
    background: var(--white);
    border-radius: var(--radius-lg);
    overflow: hidden;
    border: 1px solid rgba(0,0,0,0.06);
    transition: var(--transition);
    display: flex;
    flex-direction: column;
    position: relative;
}

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

.product-card.featured {
    grid-column: span 1;
    border: 2px solid var(--primary);
}

.product-card.full-width {
    grid-column: span 3;
    flex-direction: row;
}

.product-badge {
    position: absolute;
    top: 16px;
    left: 16px;
    padding: 6px 14px;
    background: var(--gradient-primary);
    color: var(--white);
    font-size: 12px;
    font-weight: 600;
    border-radius: 100px;
    z-index: 2;
}

.product-image {
    position: relative;
    width: 100%;
    height: 220px;
    overflow: hidden;
}

.full-width .product-image {
    width: 40%;
    height: auto;
    min-height: 280px;
}

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

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

.product-overlay {
    position: absolute;
    bottom: 12px;
    left: 12px;
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
}

.tech-tag {
    padding: 4px 10px;
    background: rgba(0,0,0,0.6);
    backdrop-filter: blur(10px);
    color: var(--white);
    font-size: 11px;
    border-radius: 100px;
}

.product-info {
    padding: 24px;
    flex: 1;
    display: flex;
    flex-direction: column;
}

.full-width .product-info {
    flex: 1;
}

.product-info h3 {
    font-size: 18px;
    font-weight: 700;
    color: var(--dark);
    margin-bottom: 8px;
}

.product-tagline {
    font-size: 13px;
    color: var(--primary);
    font-weight: 600;
    margin-bottom: 12px;
}

.product-info > p {
    font-size: 14px;
    color: var(--gray-700);
    line-height: 1.7;
    flex: 1;
}

.product-features {
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
    margin-top: 16px;
}

.product-features span {
    padding: 4px 12px;
    background: rgba(230, 57, 70, 0.08);
    color: var(--primary);
    font-size: 12px;
    border-radius: 100px;
    font-weight: 500;
}

/* Service */
.service {
    padding: 120px 0;
    background: var(--bg-light);
}

.service-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 40px;
}

.service-card {
    background: var(--white);
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-md);
}

.service-card-1 {
    display: grid;
    grid-template-columns: 1fr 1fr;
}

.service-card-2 {
    display: grid;
    grid-template-columns: 1fr 1fr;
}

.service-image {
    height: 100%;
    min-height: 400px;
    overflow: hidden;
}

.service-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.service-content {
    padding: 48px;
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.service-badge {
    display: inline-block;
    padding: 6px 16px;
    background: rgba(230, 57, 70, 0.1);
    color: var(--primary);
    font-size: 13px;
    font-weight: 600;
    border-radius: 100px;
    margin-bottom: 20px;
    align-self: flex-start;
}

.service-content h3 {
    font-size: 24px;
    font-weight: 800;
    color: var(--dark);
    margin-bottom: 16px;
    line-height: 1.3;
}

.service-content > p {
    font-size: 15px;
    color: var(--gray-700);
    line-height: 1.9;
    margin-bottom: 24px;
}

.service-list {
    list-style: none;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 12px;
}

.service-list li {
    padding-left: 28px;
    position: relative;
    font-size: 14px;
    color: var(--gray-700);
}

.service-list li::before {
    content: "✓";
    position: absolute;
    left: 0;
    color: var(--primary);
    font-weight: 700;
}

.service-empowerment {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
}

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

.emp-num {
    width: 32px;
    height: 32px;
    background: var(--gradient-primary);
    color: var(--white);
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 14px;
    font-weight: 700;
    flex-shrink: 0;
}

.emp-item h4 {
    font-size: 15px;
    font-weight: 700;
    color: var(--dark);
    margin-bottom: 4px;
}

.emp-item p {
    font-size: 13px;
    color: var(--gray-500);
}

/* Franchise */
.franchise {
    padding: 120px 0;
    background: var(--gradient-dark);
    position: relative;
    overflow: hidden;
}

.franchise::before {
    content: '';
    position: absolute;
    top: -100px;
    right: -100px;
    width: 400px;
    height: 400px;
    background: radial-gradient(circle, rgba(230,57,70,0.3) 0%, transparent 70%);
    border-radius: 50%;
}

.franchise-header {
    text-align: center;
    max-width: 700px;
    margin: 0 auto 64px;
    position: relative;
    z-index: 2;
}

.franchise-tag {
    display: inline-block;
    font-size: 13px;
    font-weight: 700;
    letter-spacing: 3px;
    color: var(--primary-light);
    margin-bottom: 12px;
}

.franchise-title {
    font-size: clamp(32px, 5vw, 48px);
    font-weight: 900;
    color: var(--white);
    margin-bottom: 16px;
}

.franchise-subtitle {
    font-size: 18px;
    color: rgba(255,255,255,0.7);
    margin-bottom: 24px;
}

.franchise-desc {
    font-size: 15px;
    color: rgba(255,255,255,0.75);
    line-height: 1.9;
}

.franchise-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
    margin-bottom: 48px;
    position: relative;
    z-index: 2;
}

.franchise-item {
    padding: 28px 20px;
    background: rgba(255,255,255,0.06);
    border: 1px solid rgba(255,255,255,0.1);
    border-radius: var(--radius);
    text-align: center;
    transition: var(--transition);
    backdrop-filter: blur(10px);
}

.franchise-item:hover {
    background: rgba(230, 57, 70, 0.15);
    border-color: rgba(230, 57, 70, 0.4);
    transform: translateY(-4px);
}

.franchise-item.highlight {
    background: linear-gradient(135deg, rgba(230, 57, 70, 0.2), rgba(255, 140, 66, 0.15));
    border-color: rgba(230, 57, 70, 0.4);
}

.franchise-icon {
    width: 56px;
    height: 56px;
    background: var(--gradient-primary);
    border-radius: 14px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 16px;
    color: var(--white);
}

.franchise-item p {
    font-size: 14px;
    color: rgba(255,255,255,0.85);
    line-height: 1.6;
}

.franchise-cta {
    text-align: center;
    position: relative;
    z-index: 2;
}

/* Solutions */
.solutions {
    padding: 120px 0;
    background: var(--bg-light);
}

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

.solution-card {
    padding: 32px 28px;
    background: var(--white);
    border-radius: var(--radius);
    border: 1px solid rgba(0,0,0,0.06);
    transition: var(--transition);
    cursor: pointer;
    position: relative;
}

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

.solution-card.full {
    grid-column: span 3;
    background: linear-gradient(135deg, #fff 0%, rgba(230,57,70,0.05) 100%);
}

.solution-icon {
    width: 60px;
    height: 60px;
    background: rgba(230, 57, 70, 0.08);
    border-radius: 14px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--primary);
    margin-bottom: 20px;
}

.solution-card h3 {
    font-size: 17px;
    font-weight: 700;
    color: var(--dark);
    margin-bottom: 12px;
}

.solution-card p {
    font-size: 14px;
    color: var(--gray-500);
    line-height: 1.7;
}

.solution-arrow {
    position: absolute;
    top: 32px;
    right: 28px;
    font-size: 20px;
    color: var(--gray-300);
    transition: var(--transition);
}

.solution-card:hover .solution-arrow {
    color: var(--primary);
    transform: translateX(4px);
}

/* Cases */
.cases {
    padding: 120px 0;
    background: var(--white);
}

.cases-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
}

.case-card {
    background: var(--white);
    border-radius: var(--radius);
    overflow: hidden;
    border: 1px solid rgba(0,0,0,0.06);
    transition: var(--transition);
}

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

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

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

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

.case-overlay {
    position: absolute;
    bottom: 12px;
    left: 12px;
}

.case-tag {
    padding: 4px 12px;
    background: var(--gradient-primary);
    color: var(--white);
    font-size: 12px;
    font-weight: 600;
    border-radius: 100px;
}

.case-info {
    padding: 20px;
}

.case-info h3 {
    font-size: 16px;
    font-weight: 700;
    color: var(--dark);
    margin-bottom: 8px;
}

.case-info > p {
    font-size: 13px;
    color: var(--gray-500);
    line-height: 1.6;
    margin-bottom: 12px;
}

.case-meta {
    display: flex;
    gap: 16px;
    font-size: 12px;
    color: var(--gray-500);
}

.cases-cta {
    text-align: center;
    margin-top: 48px;
}

/* FAQ */
.faq {
    padding: 120px 0;
    background: var(--bg-light);
}

.faq-list {
    max-width: 800px;
    margin: 0 auto;
}

.faq-item {
    background: var(--white);
    border-radius: var(--radius);
    margin-bottom: 12px;
    overflow: hidden;
    transition: var(--transition);
    border: 1px solid rgba(0,0,0,0.06);
}

.faq-item.active {
    box-shadow: var(--shadow-md);
    border-color: var(--primary-light);
}

.faq-question {
    display: flex;
    align-items: center;
    padding: 20px 24px;
    cursor: pointer;
    gap: 12px;
    user-select: none;
}

.faq-q-icon {
    width: 32px;
    height: 32px;
    background: var(--gradient-primary);
    color: var(--white);
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 14px;
    flex-shrink: 0;
}

.faq-question span:nth-child(2) {
    flex: 1;
    font-size: 15px;
    font-weight: 600;
    color: var(--dark);
}

.faq-toggle {
    width: 28px;
    height: 28px;
    background: rgba(0,0,0,0.05);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 18px;
    color: var(--gray-500);
    transition: var(--transition);
}

.faq-item.active .faq-toggle {
    background: var(--primary);
    color: var(--white);
    transform: rotate(45deg);
}

.faq-answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease;
}

.faq-answer p {
    padding: 0 24px 20px 68px;
    font-size: 14px;
    color: var(--gray-700);
    line-height: 1.9;
}

.faq-item.active .faq-answer {
    max-height: 300px;
}

/* Contact */
.contact {
    padding: 120px 0;
    background: var(--gradient-dark);
}

.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 64px;
}

.contact-title {
    font-size: clamp(32px, 4vw, 44px);
    font-weight: 900;
    color: var(--white);
    margin-bottom: 16px;
}

.contact-desc {
    font-size: 16px;
    color: rgba(255,255,255,0.7);
    line-height: 1.9;
    margin-bottom: 48px;
}

.contact-items {
    display: flex;
    flex-direction: column;
    gap: 24px;
}

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

.ci-icon {
    width: 48px;
    height: 48px;
    background: rgba(230, 57, 70, 0.2);
    border: 1px solid rgba(230, 57, 70, 0.3);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--primary);
    flex-shrink: 0;
}

.ci-label {
    display: block;
    font-size: 13px;
    color: rgba(255,255,255,0.6);
    margin-bottom: 4px;
}

.ci-value {
    display: block;
    font-size: 18px;
    font-weight: 700;
    color: var(--white);
}

.contact-form-wrap {
    background: rgba(255,255,255,0.05);
    border: 1px solid rgba(255,255,255,0.1);
    border-radius: var(--radius-lg);
    padding: 40px;
    backdrop-filter: blur(10px);
}

.contact-form-wrap h3 {
    font-size: 22px;
    font-weight: 700;
    color: var(--white);
    margin-bottom: 28px;
}

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

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.form-group label {
    font-size: 13px;
    color: rgba(255,255,255,0.7);
    font-weight: 500;
}

.form-group input,
.form-group select,
.form-group textarea {
    padding: 14px 16px;
    background: rgba(255,255,255,0.08);
    border: 1px solid rgba(255,255,255,0.15);
    border-radius: 10px;
    color: var(--white);
    font-size: 14px;
    font-family: inherit;
    transition: var(--transition);
}

.form-group input::placeholder,
.form-group textarea::placeholder {
    color: rgba(255,255,255,0.4);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary);
    background: rgba(255,255,255,0.1);
}

.form-group select {
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 24 24' fill='none' stroke='rgba(255,255,255,0.5)' stroke-width='2'%3E%3Cpolyline points='6 9 12 15 18 9'%3E%3C/polyline%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 16px center;
    padding-right: 40px;
}

.form-group select option {
    background: var(--dark);
    color: var(--white);
}

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

/* 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: 48px;
    padding-bottom: 48px;
    border-bottom: 1px solid rgba(255,255,255,0.08);
}

.footer-logo {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 16px;
}

.footer-logo span {
    font-size: 20px;
    font-weight: 700;
    color: var(--white);
}

.footer-brand-desc {
    font-size: 14px;
    line-height: 1.8;
    margin-bottom: 20px;
}

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

.footer-certifications span {
    padding: 6px 12px;
    background: rgba(255,255,255,0.06);
    border-radius: 8px;
    font-size: 12px;
    color: rgba(255,255,255,0.6);
}

.footer-links h4,
.footer-newsletter h4 {
    font-size: 16px;
    font-weight: 700;
    color: var(--white);
    margin-bottom: 20px;
}

.footer-links ul {
    list-style: none;
}

.footer-links li {
    margin-bottom: 10px;
}

.footer-links a {
    color: rgba(255,255,255,0.6);
    text-decoration: none;
    font-size: 14px;
    transition: var(--transition);
}

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

.footer-newsletter p {
    font-size: 14px;
    margin-bottom: 20px;
}

.qr-placeholder {
    display: flex;
    gap: 12px;
}

.qr-box {
    width: 100px;
    height: 100px;
    background: rgba(255,255,255,0.06);
    border: 1px solid rgba(255,255,255,0.1);
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 12px;
    color: rgba(255,255,255,0.4);
}

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

.footer-bottom p {
    margin-bottom: 4px;
}

/* 页脚备案号 / 技术支持 —— 独立一行，清晰可读 */
.footer-beian-line {
    margin-top: 6px !important;
    font-size: 12px;
    color: rgba(255,255,255,0.55) !important;
    line-height: 1.8;
}
.footer-beian-link {
    color: rgba(255,255,255,0.75) !important;
    text-decoration: none;
    border-bottom: 1px dashed rgba(255,255,255,0.35);
    transition: color .2s ease, border-color .2s ease;
}
.footer-beian-link:hover {
    color: #ffffff !important;
    border-bottom-color: #ffffff;
}

/* Back to Top */
.back-to-top {
    position: fixed;
    bottom: 32px;
    right: 32px;
    width: 48px;
    height: 48px;
    background: var(--primary);
    color: var(--white);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: var(--shadow-lg);
    opacity: 0;
    visibility: hidden;
    transition: var(--transition);
    z-index: 999;
}

.back-to-top.visible {
    opacity: 1;
    visibility: visible;
}

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

/* Animations */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.5; }
}

@keyframes scrollDown {
    0% { transform: translateY(0); opacity: 1; }
    100% { transform: translateY(12px); opacity: 0; }
}

.animate-on-scroll {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

.animate-on-scroll.visible {
    opacity: 1;
    transform: translateY(0);
}

/* AI Floating Chat Widget */
.ai-chat-widget {
    position: fixed;
    right: 24px;
    bottom: 96px;
    z-index: 9999;
}

.ai-chat-bubble {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 14px 18px;
    background: var(--gradient-primary);
    border-radius: 100px;
    color: var(--white);
    box-shadow: 0 8px 32px rgba(230, 57, 70, 0.45);
    cursor: pointer;
    animation: aiBubbleIn 0.5s ease, pulse 2.5s ease-in-out 0.5s infinite;
    max-width: 280px;
    position: relative;
}

@keyframes aiBubbleIn {
    from { opacity: 0; transform: translateY(20px); }
    to { opacity: 1; transform: translateY(0); }
}

.ai-chat-bubble .bubble-icon {
    width: 36px;
    height: 36px;
    background: rgba(255,255,255,0.2);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.bubble-text {
    display: flex;
    flex-direction: column;
    line-height: 1.3;
}

.bubble-title {
    font-size: 14px;
    font-weight: 700;
}

.bubble-desc {
    font-size: 11px;
    opacity: 0.9;
}

.bubble-close {
    position: absolute;
    top: 4px;
    right: 10px;
    width: 20px;
    height: 20px;
    background: rgba(0,0,0,0.2);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 14px;
    cursor: pointer;
    opacity: 0;
    transition: var(--transition);
}

.ai-chat-bubble:hover .bubble-close {
    opacity: 1;
}

.ai-chat-panel {
    position: absolute;
    right: 0;
    bottom: 72px;
    width: 360px;
    height: 520px;
    background: var(--white);
    border-radius: 16px;
    box-shadow: 0 20px 60px rgba(0,0,0,0.25);
    overflow: hidden;
    display: flex;
    flex-direction: column;
    transform: scale(0.8) translateY(20px);
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s cubic-bezier(0.34, 1.56, 0.64, 1);
    transform-origin: bottom right;
}

.ai-chat-panel.active {
    transform: scale(1) translateY(0);
    opacity: 1;
    visibility: visible;
}

.ai-chat-header {
    padding: 16px 20px;
    background: var(--gradient-primary);
    color: var(--white);
    display: flex;
    align-items: center;
    gap: 12px;
}

.ai-avatar {
    width: 40px;
    height: 40px;
    background: rgba(255,255,255,0.2);
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.ai-header-info {
    flex: 1;
    display: flex;
    flex-direction: column;
}

.ai-name {
    font-size: 15px;
    font-weight: 700;
}

.ai-status {
    font-size: 12px;
    opacity: 0.9;
    display: flex;
    align-items: center;
    gap: 6px;
}

.status-dot {
    width: 6px;
    height: 6px;
    background: #4ade80;
    border-radius: 50%;
    animation: pulse 2s infinite;
}

.ai-close {
    background: rgba(255,255,255,0.2);
    border: none;
    color: var(--white);
    width: 32px;
    height: 32px;
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: var(--transition);
}

.ai-close:hover {
    background: rgba(255,255,255,0.3);
}

.ai-chat-body {
    flex: 1;
    padding: 20px;
    overflow-y: auto;
    background: #f8f9fb;
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.ai-chat-body::-webkit-scrollbar {
    width: 6px;
}

.ai-chat-body::-webkit-scrollbar-thumb {
    background: rgba(0,0,0,0.1);
    border-radius: 3px;
}

.ai-msg {
    max-width: 85%;
    padding: 12px 16px;
    border-radius: 12px;
    font-size: 14px;
    line-height: 1.6;
    animation: aiMsgIn 0.3s ease;
}

@keyframes aiMsgIn {
    from { opacity: 0; transform: translateY(10px); }
    to { opacity: 1; transform: translateY(0); }
}

.ai-msg p {
    margin: 0;
}

.ai-msg p + p {
    margin-top: 6px;
}

.ai-msg-welcome {
    background: var(--white);
    border-radius: 4px 12px 12px 12px;
    color: var(--gray-700);
    box-shadow: 0 2px 8px rgba(0,0,0,0.06);
    align-self: flex-start;
}

.ai-msg-user {
    background: var(--gradient-primary);
    color: var(--white);
    border-radius: 12px 4px 12px 12px;
    align-self: flex-end;
}

.ai-msg-loading {
    background: var(--white);
    border-radius: 4px 12px 12px 12px;
    box-shadow: 0 2px 8px rgba(0,0,0,0.06);
    align-self: flex-start;
}

.ai-msg-loading::after {
    content: '●●●';
    display: inline-block;
    animation: loadingDots 1.4s infinite;
    letter-spacing: 2px;
}

@keyframes loadingDots {
    0%, 20% { opacity: 0.3; }
    50% { opacity: 1; }
    100% { opacity: 0.3; }
}

.ai-quick-questions {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-top: 4px;
}

.ai-quick-btn {
    padding: 8px 14px;
    background: var(--white);
    border: 1px solid rgba(230, 57, 70, 0.2);
    border-radius: 100px;
    color: var(--primary);
    font-size: 12px;
    font-weight: 500;
    cursor: pointer;
    transition: var(--transition);
    font-family: inherit;
}

.ai-quick-btn:hover {
    background: var(--primary);
    color: var(--white);
    border-color: var(--primary);
}

.ai-chat-input {
    padding: 12px 16px;
    background: var(--white);
    border-top: 1px solid rgba(0,0,0,0.06);
    display: flex;
    gap: 8px;
}

.ai-chat-input input {
    flex: 1;
    padding: 10px 14px;
    background: #f4f5f7;
    border: 1px solid transparent;
    border-radius: 10px;
    font-size: 14px;
    font-family: inherit;
    transition: var(--transition);
    outline: none;
}

.ai-chat-input input:focus {
    background: var(--white);
    border-color: var(--primary);
}

.ai-send {
    width: 40px;
    height: 40px;
    background: var(--gradient-primary);
    border: none;
    border-radius: 10px;
    color: var(--white);
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: var(--transition);
}

.ai-send:hover {
    transform: scale(1.05);
}

.ai-chat-footer {
    padding: 6px 16px 8px;
    background: var(--white);
    border-top: 1px solid rgba(0,0,0,0.04);
    text-align: center;
}

.ai-chat-footer span {
    font-size: 11px;
    color: var(--gray-500);
}

.ai-chat-fab {
    width: 56px;
    height: 56px;
    border-radius: 50%;
    background: var(--gradient-primary);
    color: var(--white);
    border: none;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    box-shadow: 0 8px 32px rgba(230, 57, 70, 0.45);
    transition: var(--transition);
    position: relative;
}

.ai-chat-fab:hover {
    transform: scale(1.08);
    box-shadow: 0 12px 40px rgba(230, 57, 70, 0.55);
}

.ai-chat-fab.active {
    display: none;
}

.ai-fab-dot {
    position: absolute;
    top: 0;
    right: 0;
    width: 14px;
    height: 14px;
    background: #4ade80;
    border-radius: 50%;
    border: 3px solid var(--white);
}

/* AI Widget Responsive */
@media (max-width: 768px) {
    .ai-chat-widget {
        right: 16px;
        bottom: 100px;
    }

    .ai-chat-bubble {
        padding: 10px 14px;
        max-width: 220px;
    }

    .bubble-text {
        display: none;
    }

    .ai-chat-panel {
        right: -16px;
        bottom: 72px;
        width: 300px;
        height: 480px;
    }

    .ai-chat-fab {
        width: 50px;
        height: 50px;
    }
}

@media (max-width: 480px) {
    .ai-chat-panel {
        right: -8px;
        left: -8px;
        width: auto;
        bottom: 72px;
        height: calc(100vh - 120px);
        max-height: 520px;
    }
}

/* Responsive */
@media (max-width: 1024px) {
    .products-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    .product-card.featured,
    .product-card.full-width {
        grid-column: span 2;
    }
    .solutions-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    .solution-card.full {
        grid-column: span 2;
    }
    .cases-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    .franchise-grid {
        grid-template-columns: repeat(3, 1fr);
    }
    .footer-grid {
        grid-template-columns: 1fr 1fr;
        gap: 32px;
    }
}

@media (max-width: 768px) {
    .nav-menu {
        position: fixed;
        top: 72px;
        left: 0;
        right: 0;
        background: var(--white);
        flex-direction: column;
        padding: 24px;
        gap: 8px;
        box-shadow: var(--shadow-md);
        transform: translateY(-100%);
        opacity: 0;
        visibility: hidden;
        transition: var(--transition);
    }

    .nav-menu.active {
        transform: translateY(0);
        opacity: 1;
        visibility: visible;
    }

    .nav-toggle {
        display: flex;
    }

    .about-content {
        grid-template-columns: 1fr;
        gap: 40px;
    }

    .service-card-1,
    .service-card-2 {
        grid-template-columns: 1fr;
    }

    .service-image {
        min-height: 280px;
    }

    .service-content {
        padding: 32px 24px;
    }

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

    .product-card.featured,
    .product-card.full-width {
        grid-column: span 1;
    }

    .product-card.full-width {
        flex-direction: column;
    }

    .full-width .product-image {
        width: 100%;
        min-height: 220px;
    }

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

    .solution-card.full {
        grid-column: span 1;
    }

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

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

    .contact-grid {
        grid-template-columns: 1fr;
        gap: 40px;
    }

    .contact-form-wrap {
        padding: 28px 24px;
    }

    .form-row {
        grid-template-columns: 1fr;
    }

    .footer-grid {
        grid-template-columns: 1fr;
        gap: 32px;
    }

    .hero-stats {
        gap: 16px;
        flex-wrap: nowrap;
    }

    .stat-item {
        font-size: 14px;
    }

    .stat-num {
        font-size: 26px;
    }

    .stat-suffix {
        font-size: 14px;
    }

    .stat-label {
        font-size: 11px;
        margin-left: 4px;
    }

    .stat-divider {
        height: 24px;
    }

    .about-features {
        grid-template-columns: 1fr 1fr;
    }

    .service-list,
    .service-empowerment {
        grid-template-columns: 1fr;
    }

    .hero-buttons {
        flex-direction: column;
        width: 100%;
        max-width: 320px;
        margin-left: auto;
        margin-right: auto;
    }

    .hero-buttons .btn {
        justify-content: center;
    }
}

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

    .about-features {
        grid-template-columns: 1fr;
    }

    .section-header {
        margin-bottom: 40px;
    }

    .hero {
        padding: 100px 20px 60px;
    }

    .container {
        padding: 0 20px;
    }
}

/* ============================================================
   Hero Stats · 数字滚动补丁：防 NaN
   把「数字本体」与「后缀」隔离渲染，滚动动画只写 .num-digit
   ============================================================ */
.stat-num .num-digit {
    /* 数字等宽，避免 1→100 跳动时宽度抖动产生 CLS */
    font-variant-numeric: tabular-nums;
    display: inline-block;
    min-width: 1ch;
    text-align: right;
}

/* ============================================================
   右侧悬浮客服栏（Vertical Customer Service Rail）
   国内 B2B 营销站标准组件 · 泓安智慧消防
   ============================================================ */
.cs-rail {
    position: fixed;
    top: 50%;
    right: 8px;
    transform: translateY(-50%);
    z-index: 9998;                       /* 比 AI Chat 的 9999 略低，互不遮挡 */
    display: flex;
    flex-direction: column;
    gap: 2px;
    background: rgba(255,255,255,0.98);
    border-radius: 14px;
    padding: 8px 4px;
    box-shadow: 0 12px 40px rgba(11, 18, 40, 0.18);
    backdrop-filter: blur(8px);
    border: 1px solid rgba(230,57,70,0.08);
    animation: csRailSlideIn 0.7s cubic-bezier(0.25, 0.8, 0.25, 1) 0.2s both;
}
@keyframes csRailSlideIn {
    from { opacity: 0; transform: translate(30px, -50%); }
    to   { opacity: 1; transform: translate(0, -50%); }
}

.cs-rail-item {
    position: relative;
    width: 60px;
    min-height: 56px;
    padding: 8px 4px 6px;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 4px;
    border-radius: 10px;
    cursor: pointer;
    color: #55607A;
    text-decoration: none;
    border: none;
    background: transparent;
    transition: all 0.22s ease;
    font: inherit;
}
.cs-rail-item:hover,
.cs-rail-item:focus-visible {
    background: var(--gradient-primary, linear-gradient(135deg,#e63946,#ff6b35));
    color: #fff;
    transform: translateY(-1px);
    outline: none;
    box-shadow: 0 6px 18px rgba(230,57,70,0.25);
}
.cs-rail-icon {
    width: 28px;
    height: 28px;
    display: flex;
    align-items: center;
    justify-content: center;
    line-height: 0;
}
.cs-rail-text {
    font-size: 11px;
    font-weight: 600;
    line-height: 1.1;
    text-align: center;
    letter-spacing: 0;
}
.cs-rail-dot {
    position: absolute;
    top: 6px;
    right: 10px;
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: #06d6a0;
    box-shadow: 0 0 0 3px rgba(6,214,160,0.18);
    animation: csDotPulse 1.8s ease-in-out infinite;
}
@keyframes csDotPulse {
    0%, 100% { transform: scale(1);   box-shadow: 0 0 0 2px rgba(6,214,160,0.15); }
    50%      { transform: scale(1.2); box-shadow: 0 0 0 5px rgba(6,214,160,0.05); }
}

/* ---------- Hover Popups (tooltip cards) ---------- */
.cs-rail-pop {
    position: absolute;
    right: calc(100% + 10px);
    top: 50%;
    transform: translateY(-50%) translateX(8px);
    background: #fff;
    border-radius: 12px;
    padding: 14px 16px;
    box-shadow: 0 16px 42px rgba(11, 18, 40, 0.22);
    border: 1px solid rgba(0,0,0,0.06);
    min-width: 210px;
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
    transition: opacity 0.2s, transform 0.2s, visibility 0.2s;
    z-index: 5;
}
.cs-rail-pop::after {
    content: "";
    position: absolute;
    right: -6px;
    top: 50%;
    transform: translateY(-50%) rotate(45deg);
    width: 12px;
    height: 12px;
    background: #fff;
    border-right: 1px solid rgba(0,0,0,0.06);
    border-top:  1px solid rgba(0,0,0,0.06);
}
.cs-rail-item:hover .cs-rail-pop,
.cs-rail-item:focus-visible .cs-rail-pop {
    opacity: 1;
    visibility: visible;
    pointer-events: auto;
    transform: translateY(-50%) translateX(0);
}
.cs-pop-title {
    font-size: 12px;
    color: #8890A6;
    margin-bottom: 6px;
    letter-spacing: 0.3px;
}
.cs-pop-tel-num {
    font-family: "DIN Alternate", "Noto Sans SC", sans-serif;
    font-size: 22px;
    font-weight: 900;
    color: var(--primary, #e63946);
    letter-spacing: 0.5px;
    line-height: 1.1;
    margin-bottom: 6px;
}
.cs-pop-sub {
    font-size: 11px;
    color: #8890A6;
    line-height: 1.4;
}
.cs-pop-qr {
    display: block;
    width: 150px;
    height: 150px;
    margin: 2px auto 6px;
    padding: 6px;
    background: #fff;
    border: 1px solid #eee;
    border-radius: 8px;
}

/* ---------- 单 Item 强调色（可选装饰）---------- */
.cs-rail-tel   .cs-rail-icon { color: #06d6a0; }
.cs-rail-wechat.cs-rail-icon,
.cs-rail-wechat .cs-rail-icon { color: #07c160; }
.cs-rail-msg   .cs-rail-icon { color: #e63946; } /* 加盟留言，保留红色吸引注意 */
.cs-rail-cert  .cs-rail-icon { color: #0b3d91; }
.cs-rail-top   .cs-rail-icon { color: #8890A6; }
/* hover 后颜色统一为白色（由父级 color:#fff 统一下传，无需覆盖）*/

/* ---------- 移动端：移到右上角横排小尺寸 ---------- */
@media (max-width: 768px) {
    .cs-rail {
        top: 12px;
        right: 12px;
        transform: none;
        flex-direction: row;
        gap: 0;
        padding: 4px;
        width: auto;
        animation: none;
        opacity: 0.96;
    }
    .cs-rail-item { width: 46px; min-height: 44px; padding: 6px 2px; }
    .cs-rail-text { display: none; }
    .cs-rail-pop { display: none; } /* 移动端 hover tooltip 无用，直接隐藏 */
}