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

:root {
    --primary: #5B4BFF;
    --primary-light: #7C6FFF;
    --primary-dark: #2B1A8A;
    --gradient-start: #2B1A8A;
    --gradient-mid: #5B4BFF;
    --gradient-end: #8B7FFF;
    --bg-dark: #0A0618;
    --bg-card: rgba(91, 75, 255, 0.08);
    --accent: #00D4FF;
    --text-primary: #FFFFFF;
    --text-secondary: #C8C0E6;
    --border-glow: rgba(91, 75, 255, 0.2);
    --border-glow-hover: rgba(91, 75, 255, 0.6);
    --gradient-main: linear-gradient(135deg, #2B1A8A 0%, #5B4BFF 50%, #8B7FFF 100%);
    --gradient-text: linear-gradient(135deg, #8B7FFF 0%, #00D4FF 100%);
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', Arial, sans-serif;
    line-height: 1.6;
    color: var(--text-primary);
    background: var(--bg-dark);
    overflow-x: hidden;
    min-height: 100vh;
}

a { text-decoration: none; color: inherit; }
ul { list-style: none; }

/* ==================== Particle Background ==================== */
.particles {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 0;
    pointer-events: none;
    overflow: hidden;
}

.particle {
    position: absolute;
    background: var(--accent);
    border-radius: 50%;
    opacity: 0.4;
    animation: floatUp linear infinite;
}

@keyframes floatUp {
    0% { transform: translateY(100vh) translateX(0); opacity: 0; }
    10% { opacity: 0.4; }
    90% { opacity: 0.4; }
    100% { transform: translateY(-100px) translateX(50px); opacity: 0; }
}

/* ==================== Navbar ==================== */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: rgba(10, 6, 24, 0.8);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--border-glow);
    transition: all 0.3s ease;
}

.nav-container {
    max-width: 1280px;
    margin: 0 auto;
    padding: 1rem 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.logo-img {
    width: 36px;
    height: 36px;
    border-radius: 8px;
    object-fit: cover;
    flex-shrink: 0;
}

.logo-main {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 1.4rem;
    font-weight: 700;
    background: var(--gradient-text);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.logo-sub {
    font-size: 0.75rem;
    color: var(--text-secondary);
    letter-spacing: 0.1rem;
}

.logo-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 32px;
    height: 32px;
    background: var(--gradient-main);
    border-radius: 8px;
    font-size: 1rem;
    color: white;
    box-shadow: 0 0 20px rgba(91, 75, 255, 0.5);
}

.logo-img {
    width: 36px;
    height: 36px;
    border-radius: 8px;
    object-fit: cover;
    box-shadow: 0 0 20px rgba(91, 75, 255, 0.5);
}

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

.nav-menu a {
    color: var(--text-secondary);
    font-size: 0.95rem;
    font-weight: 500;
    transition: color 0.3s ease;
    position: relative;
}

.nav-menu a::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--accent);
    transition: width 0.3s ease;
}

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

.nav-menu a:hover::after {
    width: 100%;
}

.nav-cta {
    padding: 0.6rem 1.5rem;
    background: var(--gradient-main);
    border-radius: 8px;
    color: white !important;
    font-weight: 600;
    box-shadow: 0 4px 20px rgba(91, 75, 255, 0.4);
    transition: all 0.3s ease;
}

.nav-cta:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 30px rgba(91, 75, 255, 0.6);
}

.nav-cta::after { display: none; }

/* ==================== Buttons ==================== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 0.85rem 2rem;
    font-size: 0.95rem;
    font-weight: 600;
    border-radius: 8px;
    transition: all 0.3s ease;
    cursor: pointer;
    border: none;
    position: relative;
    overflow: hidden;
}

.btn-primary {
    background: var(--gradient-main);
    color: white;
    box-shadow: 0 6px 24px rgba(91, 75, 255, 0.4);
}

.btn-primary::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.2), transparent);
    transition: left 0.5s ease;
}

.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 12px 40px rgba(91, 75, 255, 0.6), 0 0 30px rgba(0, 212, 255, 0.3);
}

.btn-primary:hover::before {
    left: 100%;
}

.btn-outline {
    background: transparent;
    color: white;
    border: 1px solid var(--border-glow);
}

.btn-outline:hover {
    border-color: var(--primary-light);
    background: var(--bg-card);
    box-shadow: 0 0 20px rgba(91, 75, 255, 0.3);
}

.btn-large {
    padding: 1.1rem 3rem;
    font-size: 1.05rem;
}

/* ==================== Hero Section (Homepage) ==================== */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
    padding-top: 80px;
}

.hero-bg {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: radial-gradient(ellipse at center, var(--gradient-mid) 0%, var(--gradient-start) 40%, var(--bg-dark) 100%);
    z-index: -2;
}

.hero-bg::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-image: url('https://trae-api-cn.mchost.guru/api/ide/v1/text_to_image?prompt=Deep%20space%20purple%20blue%20gradient%20with%20floating%20particles%20and%20data%20streams%2C%20abstract%20tech%20grid%2C%20glowing%20nebula%20effect%2C%20dark%20futuristic%20background&image_size=landscape_16_9');
    background-size: cover;
    background-position: center;
    opacity: 0.4;
    mix-blend-mode: screen;
}

/* Particle system */
.hero-particles {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    z-index: -1;
    overflow: hidden;
}

.hero-particles .particle {
    position: absolute;
    width: 2px;
    height: 2px;
    background: rgba(124, 111, 255, 0.6);
    border-radius: 50%;
    animation: floatParticle linear infinite;
}

@keyframes floatParticle {
    0% { transform: translateY(100vh) translateX(0); opacity: 0; }
    10% { opacity: 1; }
    90% { opacity: 1; }
    100% { transform: translateY(-10vh) translateX(30px); opacity: 0; }
}

/* Light beam from top */
.hero-beam {
    position: absolute;
    top: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 400px;
    height: 70%;
    background: linear-gradient(to bottom,
        rgba(124, 111, 255, 0.25) 0%,
        rgba(91, 75, 255, 0.1) 50%,
        transparent 100%);
    filter: blur(50px);
    z-index: 0;
    animation: beamPulse 4s ease-in-out infinite;
}

@keyframes beamPulse {
    0%, 100% { opacity: 0.5; }
    50% { opacity: 0.9; }
}

.hero-content {
    text-align: center;
    max-width: 800px;
    padding: 2rem;
    position: relative;
    z-index: 2;
    animation: fadeInUp 1.2s ease;
}

@keyframes fadeInUp {
    from { opacity: 0; transform: translateY(40px); }
    to { opacity: 1; transform: translateY(0); }
}

/* Layer 1: Brand name (smallest) */
.hero-brand {
    font-size: 5rem;
    font-weight: 800;
    color: #FFFFFF;
    letter-spacing: 0.05rem;
    margin-bottom: 1.5rem;
    text-shadow: 0 0 60px rgba(91, 75, 255, 0.5);
}

/* Layer 2: Core positioning (medium) */
.hero-positioning {
    font-size: 1.6rem;
    font-weight: 700;
    margin-bottom: 1rem;
    background: linear-gradient(135deg, #E8E0FF 0%, #C4B5FD 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    filter: drop-shadow(0 0 20px rgba(164, 147, 255, 0.8));
}

/* Glowing divider */
.hero-divider {
    width: 200px;
    height: 2px;
    margin: 0 auto 2rem;
    background: linear-gradient(90deg, transparent, #7C6FFF, #5B4BFF, #7C6FFF, transparent);
    box-shadow: 0 0 12px rgba(124, 111, 255, 0.6);
    animation: dividerExpand 1.5s ease 0.5s both;
}

@keyframes dividerExpand {
    from { width: 0; opacity: 0; }
    to { width: 200px; opacity: 1; }
}

/* Layer 3: Core paragraph (large) */
.hero-core-text {
    margin-bottom: 2rem;
}

.hero-core-text p {
    font-size: 1.4rem;
    font-weight: 700;
    color: #FFFFFF;
    line-height: 1.6;
    margin: 0;
    text-shadow: 0 0 40px rgba(91, 75, 255, 0.3);
}

/* Layer 4: Description (smallest) */
.hero-desc {
    font-size: 0.95rem;
    font-weight: 300;
    color: #C8C0E6;
    line-height: 1.8;
    max-width: 70%;
    margin: 0 auto 2.5rem;
}

/* CTA button */
.hero-cta {
    display: inline-block;
    padding: 0.9rem 2.5rem;
    background: linear-gradient(135deg, #5B4BFF 0%, #7C6FFF 100%);
    color: #FFFFFF;
    font-size: 1rem;
    font-weight: 600;
    border-radius: 50px;
    text-decoration: none;
    transition: all 0.3s ease;
    box-shadow: 0 4px 20px rgba(91, 75, 255, 0.3);
}

.hero-cta:hover {
    box-shadow: 0 6px 30px rgba(91, 75, 255, 0.6);
    transform: translateY(-3px);
}

/* Bottom flowing light band */
.hero-light-band {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(90deg,
        transparent 0%,
        var(--primary) 20%,
        var(--accent) 50%,
        var(--primary) 80%,
        transparent 100%);
    background-size: 200% 100%;
    animation: flowLight 4s linear infinite;
    opacity: 0.6;
    z-index: 2;
}

@keyframes flowLight {
    from { background-position: 200% 0; }
    to { background-position: -200% 0; }
}

/* ==================== Dual Modules Section ==================== */
.modules {
    padding: 5rem 2rem 6rem;
    position: relative;
    z-index: 1;
}

.modules-container {
    max-width: 1280px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 2rem;
    align-items: stretch;
}

/* Glass card base */
.glass-card {
    background: var(--bg-card);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border: 1px solid var(--border-glow);
    border-radius: 20px;
    padding: 2.5rem;
    transition: all 0.4s ease;
    position: relative;
    overflow: hidden;
}

.glass-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: radial-gradient(circle at 50% 0%, rgba(91, 75, 255, 0.1), transparent 70%);
    opacity: 0;
    transition: opacity 0.4s ease;
}

.glass-card:hover {
    transform: translateY(-6px);
    border-color: var(--border-glow-hover);
    box-shadow: 0 20px 60px rgba(91, 75, 255, 0.2), 0 0 30px rgba(91, 75, 255, 0.15);
}

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

/* Module specific decorations */
.module-left::after {
    content: '';
    position: absolute;
    top: -40px;
    right: -40px;
    width: 150px;
    height: 150px;
    border: 1px solid rgba(91, 75, 255, 0.2);
    border-radius: 50%;
    pointer-events: none;
}

.module-left::before {
    content: '';
    position: absolute;
    top: -20px;
    right: -20px;
    width: 110px;
    height: 110px;
    border: 1px solid rgba(91, 75, 255, 0.15);
    border-radius: 50%;
    pointer-events: none;
    z-index: 0;
}

.module-right .geo-deco {
    position: absolute;
    top: 20px;
    left: 20px;
    width: 80px;
    height: 80px;
    border: 1px solid rgba(91, 75, 255, 0.2);
    transform: rotate(45deg);
    pointer-events: none;
    z-index: 0;
}

.module-content {
    position: relative;
    z-index: 1;
}

.module-tag {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.35rem 1rem;
    background: rgba(91, 75, 255, 0.15);
    border: 1px solid var(--border-glow);
    border-radius: 20px;
    font-size: 0.8rem;
    color: var(--text-secondary);
    margin-bottom: 1.5rem;
}

.tag-dot {
    width: 8px;
    height: 8px;
    background: var(--primary);
    border-radius: 50%;
    box-shadow: 0 0 8px var(--primary);
}

.module-image {
    width: 100%;
    height: 220px;
    border-radius: 14px;
    overflow: hidden;
    margin-bottom: 1.5rem;
    position: relative;
}

.module-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.6s ease;
}

.glass-card:hover .module-image img {
    transform: scale(1.08);
}

.module-title {
    font-size: 1.75rem;
    font-weight: 700;
    margin-bottom: 1rem;
    color: var(--text-primary);
}

.module-desc {
    font-size: 1rem;
    color: var(--text-secondary);
    line-height: 1.8;
    margin-bottom: 1.5rem;
}

.module-keywords {
    display: flex;
    flex-wrap: wrap;
    gap: 0.6rem;
    margin-bottom: 2rem;
}

.keyword {
    padding: 0.35rem 1rem;
    background: rgba(0, 212, 255, 0.08);
    border: 1px solid rgba(0, 212, 255, 0.2);
    border-radius: 6px;
    font-size: 0.85rem;
    color: var(--accent);
}

.module-btn {
    width: 100%;
}

/* ==================== Sub Page Hero ==================== */
.sub-hero {
    position: relative;
    padding: 8rem 2rem 4rem;
    overflow: hidden;
    background: radial-gradient(ellipse at center, #1A0E3E 0%, #0A0618 100%);
}

.sub-hero-bg {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: radial-gradient(ellipse at top, rgba(91, 75, 255, 0.15) 0%, transparent 60%);
    z-index: 0;
}

.back-nav {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    color: var(--text-secondary);
    font-size: 0.95rem;
    margin-bottom: 2rem;
    transition: color 0.3s ease;
}

.back-nav:hover {
    color: var(--accent);
}

.sub-hero-container {
    max-width: 1280px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
    align-items: center;
    position: relative;
    z-index: 2;
}

.sub-hero-text {
    position: relative;
}

.sub-hero-badge {
    font-size: 14px;
    color: #7C6FFF;
    letter-spacing: 2px;
    margin-bottom: 1.5rem;
    animation: fadeInUp 0.6s ease;
}

.sub-hero-title {
    font-size: 56px;
    font-weight: 700;
    margin-bottom: 1.5rem;
    color: #FFFFFF;
    text-shadow: 0 0 60px rgba(91, 75, 255, 0.25);
    animation: fadeInUp 0.6s ease;
}

.sub-hero-line {
    width: 80px;
    height: 2px;
    margin-bottom: 1.5rem;
    background: linear-gradient(90deg, var(--primary), var(--accent));
    box-shadow: 0 0 10px var(--primary);
}

.sub-hero-subtitle {
    font-size: 22px;
    font-weight: 400;
    color: #C8C0E6;
    line-height: 1.8;
    max-width: 720px;
    margin-bottom: 2rem;
    animation: fadeInUp 0.5s ease 0.2s both;
}

.sub-hero-tags {
    display: flex;
    gap: 16px;
    margin-top: 3rem;
    flex-wrap: wrap;
    justify-content: center;
    position: relative;
    z-index: 2;
}

.sub-hero-tag {
    padding: 8px 20px;
    border: 1px solid rgba(91, 75, 255, 0.3);
    background: rgba(91, 75, 255, 0.1);
    border-radius: 20px;
    font-size: 14px;
    color: #C8C0E6;
    transition: all 0.3s ease;
    animation: fadeInLeft 0.4s ease both;
}

.sub-hero-tag:nth-child(1) { animation-delay: 0.3s; }
.sub-hero-tag:nth-child(2) { animation-delay: 0.4s; }
.sub-hero-tag:nth-child(3) { animation-delay: 0.5s; }
.sub-hero-tag:nth-child(4) { animation-delay: 0.6s; }

.sub-hero-tag:hover {
    border-color: rgba(91, 75, 255, 0.6);
    box-shadow: 0 0 15px rgba(91, 75, 255, 0.2);
}

@keyframes fadeInLeft {
    from { opacity: 0; transform: translateX(-20px); }
    to { opacity: 1; transform: translateX(0); }
}

.insight-card {
    background: rgba(91, 75, 255, 0.06);
    backdrop-filter: blur(12px);
    border: 1px solid rgba(91, 75, 255, 0.15);
    border-radius: 12px;
    padding: 24px 40px;
    margin-bottom: 2rem;
    max-width: 720px;
    animation: fadeInUp 0.5s ease 0.4s both;
    transition: border-color 0.3s ease;
}

.insight-card:hover {
    border-color: rgba(91, 75, 255, 0.3);
}

.insight-card p {
    font-size: 16px;
    color: #C8C0E6;
    line-height: 1.8;
    margin-bottom: 0.8rem;
}

.insight-title {
    font-size: 18px !important;
    font-weight: 700;
    color: #FFFFFF;
    margin-bottom: 1rem !important;
}

.insight-divider {
    width: 100%;
    height: 1px;
    background: linear-gradient(90deg, transparent, rgba(91, 75, 255, 0.3), transparent);
    margin: 1rem 0;
}

.insight-highlight {
    font-weight: 600;
    background: linear-gradient(135deg, #7C6FFF 0%, #5B4BFF 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.sub-hero-image {
    height: 480px;
    border-radius: 16px;
    overflow: hidden;
    border: 1px solid var(--border-glow);
    position: relative;
    animation: fadeInRight 0.8s ease;
}

@keyframes fadeInRight {
    from { opacity: 0; transform: translateX(40px); }
    to { opacity: 1; transform: translateX(0); }
}

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

/* ==================== Section Styles ==================== */
.section {
    padding: 4rem 2rem;
    position: relative;
    z-index: 1;
}

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

.section-title {
    font-size: 2.25rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
    text-align: center;
    background: var(--gradient-text);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.section-subtitle {
    font-size: 1.1rem;
    color: var(--text-secondary);
    text-align: center;
    margin-bottom: 1.5rem;
}

.section-title-line {
    width: 60px;
    height: 2px;
    margin: 0 auto 2.5rem;
    background: linear-gradient(90deg, var(--primary), var(--accent));
    box-shadow: 0 0 10px var(--primary);
}

/* ==================== Product Intro (Left text right image) ==================== */
.intro-block {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
    align-items: center;
}

.section-badge {
    font-size: 14px;
    color: #7C6FFF;
    letter-spacing: 2px;
    margin-bottom: 1rem;
    font-weight: 400;
}

.intro-text h3 {
    font-size: 1.75rem;
    font-weight: 700;
    margin-bottom: 1.5rem;
    color: var(--text-primary);
}

.intro-lead {
    font-size: 18px;
    font-weight: 500;
    color: #fff !important;
    margin-bottom: 1.5rem;
}

.intro-text p {
    font-size: 1rem;
    color: var(--text-secondary);
    line-height: 1.9;
    margin-bottom: 1.5rem;
}

.intro-text strong {
    color: #7C6FFF;
    font-weight: 600;
}

.intro-text .highlight-box {
    padding: 1rem 1.5rem;
    background: var(--bg-card);
    border-left: 3px solid var(--primary);
    border-radius: 0 8px 8px 0;
    color: var(--text-secondary);
    font-size: 0.95rem;
}

.intro-image {
    height: 300px;
    border-radius: 16px;
    overflow: hidden;
    border: 1px solid var(--border-glow);
    position: relative;
}

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

/* ==================== Feature Grid (2x2) ==================== */
.feature-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 1.5rem;
}

.feature-card {
    background: var(--bg-card);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border: 1px solid var(--border-glow);
    border-radius: 16px;
    padding: 2rem;
    transition: all 0.4s ease;
    position: relative;
}

.feature-card:hover {
    transform: translateY(-4px);
    border-color: var(--border-glow-hover);
    box-shadow: 0 12px 40px rgba(91, 75, 255, 0.15);
}

.feature-card.planned::after {
    content: '规划中';
    position: absolute;
    top: 1rem;
    right: 1rem;
    padding: 0.25rem 0.75rem;
    background: rgba(0, 212, 255, 0.15);
    border: 1px solid rgba(0, 212, 255, 0.3);
    border-radius: 12px;
    font-size: 0.75rem;
    color: var(--accent);
}

.feature-icon {
    width: 56px;
    height: 56px;
    background: linear-gradient(135deg, rgba(91, 75, 255, 0.2), rgba(0, 212, 255, 0.1));
    border: 1px solid var(--border-glow);
    border-radius: 14px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    margin-bottom: 1.5rem;
}

.feature-image {
    width: 100%;
    height: 180px;
    border-radius: 12px;
    overflow: hidden;
    margin-bottom: 1.25rem;
    border: 1px solid var(--border-glow);
}

.feature-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.6s ease;
}

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

.feature-card h4 {
    font-size: 1.2rem;
    font-weight: 600;
    margin-bottom: 0.75rem;
    color: var(--text-primary);
}

.feature-card p {
    font-size: 0.95rem;
    color: var(--text-secondary);
    line-height: 1.8;
}

.feature-note {
    display: block;
    margin-top: 0.75rem;
    font-size: 0.8rem;
    color: var(--accent);
    font-style: italic;
}

/* ==================== Use Cases (2 columns) ==================== */
.usecase-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
}

.usecase-card {
    background: var(--bg-card);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border: 1px solid var(--border-glow);
    border-radius: 16px;
    overflow: hidden;
    transition: all 0.4s ease;
}

.usecase-card:hover {
    transform: translateY(-4px);
    border-color: var(--border-glow-hover);
    box-shadow: 0 12px 40px rgba(91, 75, 255, 0.15);
}

.usecase-image {
    height: 200px;
    overflow: hidden;
}

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

.usecase-content {
    padding: 2rem;
}

.usecase-content h4 {
    font-size: 1.3rem;
    font-weight: 600;
    margin-bottom: 0.75rem;
    color: var(--text-primary);
}

.usecase-content p {
    font-size: 0.95rem;
    color: var(--text-secondary);
    line-height: 1.8;
}

/* ==================== Advantage Grid (3 columns) ==================== */
.advantage-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1.5rem;
}

.advantage-card {
    background: var(--bg-card);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border: 1px solid var(--border-glow);
    border-radius: 16px;
    padding: 2rem;
    text-align: center;
    transition: all 0.4s ease;
}

.advantage-card:hover {
    transform: translateY(-4px);
    border-color: var(--border-glow-hover);
    box-shadow: 0 12px 40px rgba(91, 75, 255, 0.15);
}

.advantage-icon {
    width: 64px;
    height: 64px;
    margin: 0 auto 1.5rem;
    background: linear-gradient(135deg, rgba(91, 75, 255, 0.2), rgba(0, 212, 255, 0.1));
    border: 1px solid var(--border-glow);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.75rem;
}

.advantage-card h4 {
    font-size: 1.15rem;
    font-weight: 600;
    margin-bottom: 0.75rem;
    color: var(--text-primary);
}

.advantage-card p {
    font-size: 0.9rem;
    color: var(--text-secondary);
    line-height: 1.8;
}

/* ==================== Product Advantages New (2x3 Grid with Images) ==================== */
.adv-grid-new {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1.5rem;
    margin-top: 2rem;
}

.adv-card-new {
    background: rgba(91, 75, 255, 0.05);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border: 1px solid rgba(91, 75, 255, 0.12);
    border-radius: 16px;
    padding: 0 0 28px 0;
    transition: all 0.4s ease;
    overflow: hidden;
}

.adv-card-new:hover {
    transform: translateY(-4px);
    border-color: rgba(91, 75, 255, 0.5);
    box-shadow: 0 12px 40px rgba(91, 75, 255, 0.15);
}

.adv-card-img {
    height: 140px;
    overflow: hidden;
    margin-bottom: 0;
}

.adv-card-img img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.4s ease;
}

.adv-card-new:hover .adv-card-img img {
    transform: scale(1.05);
}

.adv-card-new h4 {
    font-size: 18px;
    font-weight: 600;
    color: #fff;
    padding: 1.25rem 1.75rem 0.75rem;
    line-height: 1.4;
}

.adv-card-new p {
    font-size: 14px;
    color: #C8C0E6;
    line-height: 1.7;
    padding: 0 1.75rem;
}

/* ==================== B-end Scenarios ==================== */
.scenario-grid {
    display: flex;
    flex-direction: column;
    gap: 2rem;
}

.scenario-card {
    background: var(--bg-card);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border: 1px solid var(--border-glow);
    border-radius: 16px;
    overflow: hidden;
    transition: all 0.4s ease;
    position: relative;
    display: grid;
    grid-template-columns: 350px 1fr;
}

.scenario-card:hover {
    transform: translateY(-4px);
    border-color: var(--border-glow-hover);
    box-shadow: 0 12px 40px rgba(91, 75, 255, 0.15);
}

.scenario-badge {
    position: absolute;
    top: 1rem;
    right: 1rem;
    z-index: 2;
    padding: 0.3rem 0.8rem;
    background: var(--gradient-main);
    border-radius: 12px;
    font-size: 0.75rem;
    color: white;
    box-shadow: 0 4px 12px rgba(91, 75, 255, 0.4);
}

.scenario-image {
    height: 100%;
    min-height: 280px;
    overflow: hidden;
}

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

.scenario-content {
    padding: 1.75rem 2rem;
}

.scenario-content h4 {
    font-size: 1.2rem;
    font-weight: 600;
    margin-bottom: 0.75rem;
    color: var(--text-primary);
}

.scenario-content p {
    font-size: 0.9rem;
    color: var(--text-secondary);
    line-height: 1.8;
}

.scenario-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    margin-top: 1rem;
}

.scenario-tag {
    padding: 0.25rem 0.75rem;
    background: rgba(91, 75, 255, 0.12);
    border: 1px solid rgba(91, 75, 255, 0.3);
    border-radius: 10px;
    font-size: 0.75rem;
    color: var(--primary-light);
}

.scenario-target {
    margin-top: 0.75rem;
    font-size: 0.85rem;
    color: var(--text-secondary);
    line-height: 1.6;
}

.scenario-direction {
    margin-top: 0.75rem;
    font-size: 0.95rem;
    color: var(--text-secondary);
    line-height: 1.7;
}

.scenario-direction strong {
    color: #7C6FFF;
    font-weight: 600;
}

.scenario-value-title {
    margin-top: 1rem;
    font-size: 0.9rem;
    color: #7C6FFF;
    font-weight: 600;
}

.scenario-value-list {
    list-style: none;
    padding-left: 0;
    margin-top: 0.5rem;
}

.scenario-value-list li {
    position: relative;
    padding-left: 1.2rem;
    margin-bottom: 0.5rem;
    font-size: 0.88rem;
    color: var(--text-secondary);
    line-height: 1.7;
}

.scenario-value-list li::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0.55rem;
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: #5B4BFF;
    box-shadow: 0 0 6px rgba(91, 75, 255, 0.5);
}

.scenario-value-list li strong {
    color: #fff;
    font-weight: 600;
}

.scenario-note {
    text-align: center;
    margin-top: 2rem;
    color: var(--text-secondary);
    font-size: 0.9rem;
    font-style: italic;
}

/* ==================== Value List ==================== */
.value-block {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 3rem;
    align-items: center;
}

.value-list {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.value-item {
    display: flex;
    gap: 1.5rem;
    align-items: flex-start;
    padding: 1.5rem;
    background: var(--bg-card);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border: 1px solid var(--border-glow);
    border-radius: 12px;
    transition: all 0.3s ease;
}

.value-item:hover {
    border-color: var(--border-glow-hover);
    transform: translateX(8px);
}

.value-number {
    font-size: 1.75rem;
    font-weight: 800;
    background: var(--gradient-text);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    flex-shrink: 0;
    min-width: 50px;
    text-shadow: 0 0 20px rgba(91, 75, 255, 0.3);
}

.value-content h4 {
    font-size: 1.1rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
    color: var(--text-primary);
}

.value-content p {
    font-size: 0.9rem;
    color: var(--text-secondary);
    line-height: 1.8;
}

.value-image {
    height: 400px;
    border-radius: 16px;
    overflow: hidden;
    border: 1px solid var(--border-glow);
}

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

/* ==================== Value List New (Question-Answer Layout) ==================== */
.value-list-new {
    display: flex;
    flex-direction: column;
    gap: 2.5rem;
    margin-top: 2rem;
}

.value-card-new {
    display: grid;
    grid-template-columns: 1fr 400px;
    gap: 2.5rem;
    align-items: start;
    background: var(--bg-card);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border: 1px solid var(--border-glow);
    border-radius: 16px;
    overflow: hidden;
    transition: all 0.4s ease;
}

.value-card-new:hover {
    border-color: var(--border-glow-hover);
    box-shadow: 0 12px 40px rgba(91, 75, 255, 0.12);
}

.value-card-left {
    padding: 2rem 2.5rem;
}

.value-num-new {
    font-size: 2rem;
    font-weight: 800;
    background: var(--gradient-text);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 1rem;
}

.value-question {
    display: inline-block;
    background: rgba(91, 75, 255, 0.12);
    border: 1px solid rgba(91, 75, 255, 0.2);
    border-radius: 8px;
    padding: 6px 16px;
    font-size: 16px;
    color: #7C6FFF;
    font-weight: 600;
    margin-bottom: 1rem;
}

.value-answer {
    font-size: 20px;
    font-weight: 700;
    color: #fff;
    line-height: 1.5;
    margin-bottom: 1.5rem;
}

.value-detail {
    margin-top: 1rem;
}

.value-detail p {
    font-size: 15px;
    color: var(--text-secondary);
    line-height: 1.8;
    margin-bottom: 0.75rem;
}

.value-detail p strong {
    color: #7C6FFF;
    font-weight: 600;
}

.value-summary {
    margin-top: 1rem !important;
    padding-top: 1rem;
    border-top: 1px solid rgba(91, 75, 255, 0.15);
    font-style: italic;
    color: #A99FFF !important;
}

.value-card-right {
    height: 100%;
    min-height: 300px;
    overflow: hidden;
}

.value-card-right img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

/* ==================== Stats (with highlighted numbers) ==================== */
.stats-row {
    display: flex;
    justify-content: center;
    gap: 3rem;
    margin: 2rem 0;
    flex-wrap: wrap;
}

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

.sub-hero-stats {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 64px;
    margin-top: 2.5rem;
}

.sub-hero-stats .stat-number {
    font-size: 28px;
    font-weight: 700;
}

.stat-divider {
    width: 1px;
    height: 40px;
    background: linear-gradient(to bottom, transparent, rgba(91, 75, 255, 0.3), transparent);
}

.sub-hero-flow {
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 70%;
    height: 1px;
    background: linear-gradient(90deg, transparent, rgba(91, 75, 255, 0.3), transparent);
    background-size: 200% 100%;
    animation: flowMove 3s linear infinite;
}

@keyframes flowMove {
    0% { background-position: 100% 0; }
    100% { background-position: -100% 0; }
}

.stat-number {
    font-size: 2.5rem;
    font-weight: 800;
    background: var(--gradient-text);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    text-shadow: 0 0 20px rgba(0, 212, 255, 0.3);
}

.stat-label {
    font-size: 0.9rem;
    color: var(--text-secondary);
    margin-top: 0.25rem;
}

/* ==================== Contact Section ==================== */
.contact {
    padding: 6rem 2rem;
    text-align: center;
    position: relative;
    overflow: hidden;
    background: radial-gradient(ellipse at center, rgba(91, 75, 255, 0.15) 0%, transparent 70%);
}

.contact-content {
    max-width: 700px;
    margin: 0 auto;
    position: relative;
    z-index: 1;
}

.contact-title {
    font-size: 2.25rem;
    font-weight: 700;
    margin-bottom: 1rem;
    background: var(--gradient-text);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.contact-desc {
    font-size: 1.1rem;
    color: var(--text-secondary);
    margin-bottom: 2.5rem;
    line-height: 1.8;
}

/* ==================== Tab Switcher ==================== */
.tab-switcher {
    display: flex;
    justify-content: center;
    gap: 1rem;
    margin: 2rem 0 1.5rem;
}

.tab-btn {
    padding: 10px 32px;
    font-size: 16px;
    font-weight: 600;
    color: #C8C0E6;
    background: rgba(91, 75, 255, 0.08);
    border: 1px solid rgba(91, 75, 255, 0.2);
    border-radius: 8px;
    cursor: pointer;
    transition: all 0.3s ease;
}

.tab-btn:hover {
    border-color: rgba(91, 75, 255, 0.5);
    color: #fff;
}

.tab-btn.active {
    background: linear-gradient(135deg, #5B4BFF, #7C6FFF);
    color: #fff;
    border-color: transparent;
    box-shadow: 0 4px 20px rgba(91, 75, 255, 0.3);
}

.tab-content {
    display: none;
    animation: fadeInTab 0.4s ease;
}

.tab-content.active {
    display: block;
}

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

.tab-title {
    text-align: center;
    font-size: 1.5rem;
    font-weight: 700;
    color: #fff;
    margin-bottom: 1.5rem;
}

.tab-iframe-wrap {
    width: 100%;
    border-radius: 12px;
    overflow: hidden;
    border: 1px solid rgba(91, 75, 255, 0.15);
}

.tab-iframe-wrap iframe {
    width: 100%;
    height: 600px;
    display: block;
}

/* ==================== Footer ==================== */
.footer {
    background: #050310;
    border-top: 1px solid var(--border-glow);
    padding: 2.5rem 2rem;
    text-align: center;
    position: relative;
    z-index: 1;
}

.footer-content {
    max-width: 1280px;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 1rem;
}

.footer-logo {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--text-primary);
}

.footer-links {
    display: flex;
    gap: 2rem;
    font-size: 0.9rem;
}

.footer-links a {
    color: var(--text-secondary);
    transition: color 0.3s ease;
}

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

.footer-copy {
    font-size: 0.85rem;
    color: var(--text-secondary);
    opacity: 0.7;
}

/* ==================== Geometric Decorations ==================== */
.geo-deco-abs {
    position: absolute;
    pointer-events: none;
    opacity: 0.3;
}

.geo-hex {
    width: 100px;
    height: 100px;
    border: 1px solid var(--primary-light);
    transform: rotate(30deg);
}

.geo-rect {
    width: 80px;
    height: 80px;
    border: 1px solid var(--primary-light);
}

.geo-tri {
    width: 0;
    height: 0;
    border-left: 50px solid transparent;
    border-right: 50px solid transparent;
    border-bottom: 86px solid transparent;
    border-bottom-color: var(--primary-light);
    opacity: 0.1;
}

/* ==================== Section Description ==================== */
.section-desc {
    text-align: center;
    max-width: 700px;
    margin: 0 auto 3rem auto;
    color: var(--text-secondary);
    line-height: 1.8;
    font-size: 1rem;
}

/* ==================== Tech Capabilities ==================== */
.tech-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
}

.tech-card {
    background: var(--card-bg);
    border: 1px solid var(--card-border);
    border-radius: var(--radius);
    overflow: hidden;
    transition: all var(--transition);
    display: flex;
    flex-direction: column;
}

.tech-card:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow-glow);
    border-color: var(--primary-light);
}

.tech-image {
    width: 100%;
    height: 220px;
    overflow: hidden;
}

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

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

.tech-content {
    padding: 1.75rem;
    flex: 1;
    display: flex;
    flex-direction: column;
}

.tech-number {
    font-size: 0.85rem;
    font-weight: 700;
    color: var(--primary-light);
    letter-spacing: 0.15em;
    margin-bottom: 0.5rem;
    text-transform: uppercase;
}

.tech-content h4 {
    font-size: 1.3rem;
    margin-bottom: 0.75rem;
    background: var(--gradient-text);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.tech-content > p {
    color: var(--text-secondary);
    line-height: 1.7;
    font-size: 0.9rem;
    margin-bottom: 1rem;
}

.tech-features {
    list-style: none;
    padding: 0;
    margin: 0;
    display: flex;
    flex-direction: column;
    gap: 0.6rem;
}

.tech-features li {
    display: flex;
    align-items: flex-start;
    gap: 0.5rem;
    font-size: 0.82rem;
    color: var(--text-secondary);
    line-height: 1.5;
}

.tech-feature-dot {
    width: 6px;
    height: 6px;
    min-width: 6px;
    border-radius: 50%;
    background: var(--gradient-primary);
    margin-top: 7px;
}

.tech-features strong {
    color: var(--text-primary);
    font-weight: 600;
}

/* ==================== Responsive ==================== */
@media (max-width: 968px) {
    .nav-menu { display: none; }
    
    .hero-brand { font-size: 3rem; }
    .hero-core-text p { font-size: 1rem; }
    
    .modules-container { grid-template-columns: 1fr; }
    
    .sub-hero-container { grid-template-columns: 1fr; }
    .sub-hero-image { height: 300px; }
    .sub-hero-title { font-size: 40px; }
    .sub-hero-subtitle { font-size: 18px; }
    .sub-hero-tags { gap: 12px; flex-wrap: wrap; }
    .sub-hero-stats { flex-direction: column; gap: 1.5rem; }
    .stat-divider { width: 60px; height: 1px; background: linear-gradient(to right, transparent, rgba(91, 75, 255, 0.3), transparent); }
    .insight-card { padding: 16px 20px; }
    .insight-card p { font-size: 14px; }
    
    .intro-block { grid-template-columns: 1fr; }
    .intro-image { height: 220px; }
    
    .feature-grid { grid-template-columns: 1fr; }
    
    .usecase-grid { grid-template-columns: 1fr; }
    
    .advantage-grid { grid-template-columns: 1fr; }
    .adv-grid-new { grid-template-columns: 1fr; }
    
    .scenario-grid { flex-direction: column; }
    .scenario-card { grid-template-columns: 1fr; }
    .scenario-image { min-height: 200px; }
    
    .value-block { grid-template-columns: 1fr; }
    .value-card-new { grid-template-columns: 1fr; }
    .value-card-right { min-height: 220px; }
    .value-image { height: 250px; }
    
    .tech-grid { grid-template-columns: 1fr; }
    
    .footer-content { flex-direction: column; text-align: center; }
}

@media (max-width: 640px) {
    .hero-brand { font-size: 2.5rem; }
    .hero-core-text p { font-size: 0.85rem; }
    
    .sub-hero-title { font-size: 2rem; }
    
    .section { padding: 3rem 1rem; }
    .section-title { font-size: 1.75rem; }
    
    .glass-card { padding: 1.5rem; }
    .module-title { font-size: 1.4rem; }
    
    .btn { padding: 0.75rem 1.5rem; }
    
    .stats-row { gap: 1.5rem; }
    .stat-number { font-size: 1.8rem; }
}