/* ========================================
   DESIGN SYSTEM — Industrial Precision
   ======================================== */
:root {
    /* Dark surfaces */
    --bg-darkest: #070b15;
    --bg-dark: #0c1120;
    --bg-dark-elevated: #131a2e;
    --bg-dark-card: #161e33;

    /* Light surfaces */
    --bg-light: #f4f5fa;
    --bg-light-elevated: #ffffff;
    --bg-light-card: #ebedf3;

    /* Accent — Pronubes Violet */
    --accent: #7c3aed;
    --accent-bright: #a855f7;
    --accent-dim: #5b21b6;
    --accent-glow: rgba(124, 58, 237, 0.15);

    /* Secondary — Warm Amber */
    --amber: #ff7849;
    --amber-bright: #ff9670;
    --amber-dim: #c4583a;

    /* Text on dark */
    --text-on-dark: #e2e6f0;
    --text-on-dark-muted: #7a849a;
    --text-on-dark-dim: #4a5170;

    /* Text on light */
    --text-on-light: #161b2e;
    --text-on-light-muted: #5a6378;
    --text-on-light-dim: #939bad;

    /* Borders */
    --border-dark: rgba(255, 255, 255, 0.07);
    --border-dark-hover: rgba(124, 58, 237, 0.35);
    --border-light: rgba(0, 0, 0, 0.08);
    --border-light-hover: rgba(91, 33, 182, 0.3);

    /* Fonts */
    --font-display: 'Space Grotesk', 'Noto Sans SC', sans-serif;
    --font-body: 'Noto Sans SC', 'Space Grotesk', sans-serif;
    --font-mono: 'JetBrains Mono', monospace;

    /* Easing */
    --ease-out-quart: cubic-bezier(0.25, 1, 0.5, 1);
    --ease-out-expo: cubic-bezier(0.16, 1, 0.3, 1);

    /* Shadows */
    --shadow-soft: 0 4px 24px rgba(0, 0, 0, 0.08);
    --shadow-lift: 0 16px 48px rgba(0, 0, 0, 0.12);
    --shadow-glow: 0 0 40px rgba(124, 58, 237, 0.12);
}

/* ========================================
   RESET
   ======================================== */
*, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; font-size: 16px; }
body {
    font-family: var(--font-body);
    color: var(--text-on-light);
    background: var(--bg-darkest);
    line-height: 1.7;
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}
a { text-decoration: none; color: inherit; }
img { max-width: 100%; display: block; }
ul { list-style: none; }
button { font-family: inherit; }

/* ========================================
   UTILITIES
   ======================================== */
.container { max-width: 1200px; margin: 0 auto; padding: 0 24px; }
.section { padding: 120px 0; position: relative; }
.section-dark { background: var(--bg-dark); color: var(--text-on-dark); }
.section-darkest { background: var(--bg-darkest); color: var(--text-on-dark); }
.section-light { background: var(--bg-light); color: var(--text-on-light); }

/* Section headers */
.sec-head { margin-bottom: 64px; }
.sec-head-center { text-align: center; }
.sec-label {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    font-family: var(--font-mono);
    font-size: 0.72rem;
    font-weight: 600;
    letter-spacing: 2.5px;
    text-transform: uppercase;
    color: var(--accent);
    margin-bottom: 20px;
}
.sec-label::before {
    content: '';
    width: 24px;
    height: 1px;
    background: var(--accent);
}
.sec-head-center .sec-label::before { display: none; }
.sec-head-center .sec-label {
    background: var(--accent-glow);
    padding: 6px 16px;
    border-radius: 100px;
}
.sec-title {
    font-family: var(--font-display);
    font-size: clamp(1.8rem, 4vw, 2.8rem);
    font-weight: 700;
    letter-spacing: -0.02em;
    line-height: 1.15;
}
.sec-subtitle {
    font-size: 1.05rem;
    color: var(--text-on-light-muted);
    margin-top: 16px;
    max-width: 620px;
    line-height: 1.8;
}
.section-dark .sec-subtitle, .section-darkest .sec-subtitle { color: var(--text-on-dark-muted); }
.sec-head-center .sec-subtitle { margin-left: auto; margin-right: auto; }

/* ========================================
   NAVBAR
   ======================================== */
.navbar {
    position: fixed;
    top: 0; left: 0; right: 0;
    z-index: 1000;
    transition: all 0.4s var(--ease-out-quart);
    padding: 16px 0;
}
.navbar.scrolled {
    background: rgba(7, 11, 21, 0.85);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--border-dark);
    padding: 10px 0;
}
.nav-inner {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
    display: flex;
    align-items: center;
    justify-content: space-between;
}
.nav-logo {
    display: flex;
    align-items: center;
    gap: 10px;
    font-family: var(--font-display);
    font-size: 1.35rem;
    font-weight: 700;
    color: #fff;
    letter-spacing: -0.02em;
}
.nav-logo img { height: 46px; width: auto; display: block; transition: opacity 0.3s; }
.nav-logo:hover img { opacity: 0.85; }
.nav-logo span { color: var(--accent); }
.nav-links { display: flex; gap: 28px; align-items: center; }
.nav-links a {
    font-size: 0.88rem;
    color: var(--text-on-dark-muted);
    font-weight: 500;
    transition: color 0.2s;
    position: relative;
}
.nav-links a::after {
    content: '';
    position: absolute;
    bottom: -4px; left: 0;
    width: 0; height: 1px;
    background: var(--accent);
    transition: width 0.3s var(--ease-out-quart);
}
.nav-links a:hover { color: #fff; }
.nav-links a:hover::after { width: 100%; }
.nav-cta {
    background: var(--accent);
    color: #fff !important;
    padding: 10px 22px;
    border-radius: 8px;
    font-weight: 600 !important;
    transition: all 0.3s var(--ease-out-quart);
}
.nav-cta::after { display: none; }
.nav-cta:hover { background: var(--accent-bright); transform: translateY(-1px); box-shadow: 0 8px 24px rgba(124,58,237,0.3); }
.nav-toggle { display: none; background: none; border: none; color: #fff; font-size: 1.5rem; cursor: pointer; }

/* ========================================
   BANNER
   ======================================== */
.banner {
    min-height: 100vh;
    display: flex;
    align-items: center;
    position: relative;
    background: var(--bg-darkest);
    overflow: hidden;
    padding-top: 80px;
}
/* Animated grid background */
.banner-grid-bg {
    position: absolute;
    inset: 0;
    background-image:
        linear-gradient(rgba(124,58,237,0.04) 1px, transparent 1px),
        linear-gradient(90deg, rgba(124,58,237,0.04) 1px, transparent 1px);
    background-size: 64px 64px;
    mask-image: radial-gradient(ellipse at center, rgba(0,0,0,1) 0%, transparent 70%);
    -webkit-mask-image: radial-gradient(ellipse at center, rgba(0,0,0,1) 0%, transparent 70%);
}
/* Glow orbs */
.banner-glow-1, .banner-glow-2 {
    position: absolute;
    border-radius: 50%;
    filter: blur(80px);
    opacity: 0.4;
}
.banner-glow-1 {
    width: 500px; height: 500px;
    background: radial-gradient(circle, rgba(124,58,237,0.3), transparent 70%);
    top: -100px; right: -100px;
    animation: float-glow 12s ease-in-out infinite;
}
.banner-glow-2 {
    width: 400px; height: 400px;
    background: radial-gradient(circle, rgba(255,120,73,0.15), transparent 70%);
    bottom: -100px; left: -50px;
    animation: float-glow 15s ease-in-out infinite reverse;
}
@keyframes float-glow {
    0%, 100% { transform: translate(0, 0); }
    50% { transform: translate(30px, -20px); }
}

.banner-content {
    position: relative;
    z-index: 2;
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 24px;
    display: grid;
    grid-template-columns: 1.2fr 0.8fr;
    gap: 48px;
    align-items: center;
    width: 100%;
}
.banner-text { text-align: left; }
.banner h1 {
    font-family: var(--font-display);
    font-size: clamp(2.4rem, 5.5vw, 4.2rem);
    font-weight: 700;
    color: #fff;
    line-height: 1.1;
    letter-spacing: -0.03em;
    margin-bottom: 24px;
}
.banner h1 .gradient-text {
    background: linear-gradient(135deg, var(--accent) 0%, var(--accent-bright) 50%, #c084fc 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}
.banner-tagline {
    font-size: clamp(1.15rem, 2vw, 1.5rem);
    color: var(--text-on-dark-muted);
    margin-bottom: 20px;
    font-weight: 300;
    max-width: 520px;
}
.banner-desc {
    font-size: 1.1rem;
    color: var(--text-on-dark-dim);
    line-height: 1.9;
    margin-bottom: 40px;
    max-width: 540px;
}
.banner-buttons { display: flex; gap: 14px; flex-wrap: wrap; }
.btn-primary {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: var(--accent);
    color: #fff;
    padding: 14px 30px;
    border-radius: 10px;
    font-weight: 600;
    font-size: 1rem;
    transition: all 0.3s var(--ease-out-quart);
    border: none;
    cursor: pointer;
    position: relative;
    overflow: hidden;
}
.btn-primary::before {
    content: '';
    position: absolute;
    top: 0; left: -100%;
    width: 100%; height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.3), transparent);
    transition: left 0.5s var(--ease-out-quart);
}
.btn-primary:hover { background: var(--accent-bright); transform: translateY(-2px); box-shadow: 0 12px 32px rgba(124,58,237,0.35); }
.btn-primary:hover::before { left: 100%; }
.btn-outline {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: transparent;
    color: #fff;
    padding: 14px 30px;
    border-radius: 10px;
    font-weight: 600;
    font-size: 0.95rem;
    border: 1px solid var(--border-dark);
    transition: all 0.3s var(--ease-out-quart);
    cursor: pointer;
}
.btn-outline:hover { border-color: var(--accent); background: rgba(124,58,237,0.05); color: var(--accent-bright); }

.banner-stats {
    display: flex;
    gap: 48px;
    margin-top: 64px;
    flex-wrap: wrap;
    justify-content: center;
}
.banner-stat .num {
    font-family: var(--font-display);
    font-size: clamp(1.8rem, 3.5vw, 2.4rem);
    font-weight: 700;
    color: var(--accent);
    line-height: 1;
}
.banner-stat .num .unit { font-size: 0.6em; color: var(--text-on-dark-muted); margin-left: 2px; }
.banner-stat .label {
    font-size: 0.85rem;
    color: var(--text-on-dark-dim);
    margin-top: 8px;
    letter-spacing: 0.3px;
}

/* Banner visual — animated data flow */
.banner-visual {
    position: relative;
    height: 480px;
    display: flex;
    align-items: center;
    justify-content: center;
}
.banner-visual svg { width: 100%; height: 100%; }

/* ========================================
   PRODUCT INTRO
   ======================================== */
.intro-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 0;
    margin-top: 64px;
    border: 1px solid var(--border-light);
    border-radius: 20px;
    overflow: hidden;
    background: var(--bg-light-elevated);
}
.intro-card {
    padding: 44px 36px;
    border-right: 1px solid var(--border-light);
    transition: background 0.3s;
    position: relative;
}
.intro-card:last-child { border-right: none; }
.intro-card:hover { background: var(--bg-light-card); }
.intro-card .icon-wrap {
    width: 52px; height: 52px;
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 28px;
    background: linear-gradient(135deg, rgba(124,58,237,0.1), rgba(124,58,237,0.03));
    border: 1px solid rgba(124,58,237,0.15);
}
.intro-card .icon-wrap svg { width: 26px; height: 26px; stroke: var(--accent-dim); }
.intro-card h3 {
    font-family: var(--font-display);
    font-size: 1.2rem;
    font-weight: 600;
    margin-bottom: 12px;
    color: var(--text-on-light);
}
.intro-card p {
    font-size: 0.92rem;
    color: var(--text-on-light-muted);
    line-height: 1.8;
}

/* Closed loop */
.closed-loop {
    margin-top: 64px;
    background: var(--bg-darkest);
    border-radius: 24px;
    padding: 56px 48px;
    position: relative;
    overflow: hidden;
}
.closed-loop::before {
    content: '';
    position: absolute;
    inset: 0;
    background-image:
        linear-gradient(rgba(124,58,237,0.03) 1px, transparent 1px),
        linear-gradient(90deg, rgba(124,58,237,0.03) 1px, transparent 1px);
    background-size: 40px 40px;
}
.closed-loop-title { text-align: center; position: relative; margin-bottom: 48px; }
.closed-loop-title h3 {
    font-family: var(--font-display);
    font-size: 1.6rem;
    font-weight: 600;
    color: #fff;
}
.closed-loop-title p { color: var(--text-on-dark-muted); margin-top: 12px; font-size: 0.95rem; }
.loop-steps {
    display: flex;
    justify-content: space-between;
    align-items: stretch;
    gap: 12px;
    position: relative;
}
.loop-step {
    flex: 1;
    text-align: center;
    position: relative;
    background: var(--bg-dark-card);
    border: 1px solid var(--border-dark);
    border-radius: 16px;
    padding: 32px 20px;
    transition: all 0.3s var(--ease-out-quart);
}
.loop-step:hover { border-color: var(--border-dark-hover); transform: translateY(-4px); background: var(--bg-dark-elevated); }
.loop-step .step-num {
    position: absolute;
    top: -12px; left: 20px;
    font-family: var(--font-mono);
    font-size: 0.68rem;
    font-weight: 600;
    color: var(--accent);
    background: var(--bg-darkest);
    padding: 2px 10px;
    border: 1px solid var(--border-dark-hover);
    border-radius: 100px;
    letter-spacing: 1px;
}
.loop-step .step-icon { width: 48px; height: 48px; margin: 0 auto 16px; }
.loop-step .step-icon svg { width: 100%; height: 100%; stroke: var(--accent); }
.loop-step h4 {
    font-family: var(--font-display);
    font-size: 1rem;
    font-weight: 600;
    margin-bottom: 8px;
    color: #fff;
}
.loop-step p { font-size: 0.82rem; color: var(--text-on-dark-muted); }
.loop-arrow {
    display: flex;
    align-items: center;
    color: var(--accent-dim);
    font-size: 1.2rem;
    flex-shrink: 0;
}

/* ========================================
   ADVANTAGES — Bento Grid
   ======================================== */
.bento-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    grid-template-rows: auto auto;
    gap: 16px;
    margin-top: 64px;
}
.bento-card {
    background: var(--bg-light-elevated);
    border: 1px solid var(--border-light);
    border-radius: 18px;
    padding: 36px;
    transition: all 0.4s var(--ease-out-quart);
    position: relative;
    overflow: hidden;
}
.bento-card:hover {
    border-color: var(--border-light-hover);
    box-shadow: var(--shadow-lift);
    transform: translateY(-3px);
}
.bento-card.large { grid-column: span 2; grid-row: span 1; }
.bento-card .bento-icon {
    width: 44px; height: 44px;
    margin-bottom: 20px;
}
.bento-card .bento-icon svg { width: 100%; height: 100%; stroke: var(--accent-dim); }
.bento-card h3 {
    font-family: var(--font-display);
    font-size: 1.15rem;
    font-weight: 600;
    margin-bottom: 10px;
}
.bento-card p {
    font-size: 0.9rem;
    color: var(--text-on-light-muted);
    line-height: 1.75;
}
.bento-card .bento-tag {
    display: inline-block;
    font-family: var(--font-mono);
    font-size: 0.68rem;
    color: var(--accent-dim);
    background: rgba(124,58,237,0.08);
    padding: 4px 10px;
    border-radius: 6px;
    margin-top: 16px;
    letter-spacing: 0.5px;
}

/* ========================================
   ARCHITECTURE
   ======================================== */
.arch-container {
    margin-top: 64px;
    background: var(--bg-dark-elevated);
    border: 1px solid var(--border-dark);
    border-radius: 24px;
    padding: 56px 40px;
    position: relative;
    overflow: hidden;
}
.arch-container::before {
    content: '';
    position: absolute;
    top: 0; left: 0; right: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--accent), transparent);
}
.arch-layer { margin-bottom: 16px; }
.arch-layer:last-child { margin-bottom: 0; }
.arch-layer-label {
    font-family: var(--font-mono);
    color: var(--text-on-dark-dim);
    font-size: 0.72rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 2px;
    margin-bottom: 12px;
    display: flex;
    align-items: center;
    gap: 8px;
}
.arch-layer-label::before {
    content: '';
    width: 6px; height: 6px;
    border-radius: 50%;
    background: var(--accent-dim);
}
.arch-layer-boxes {
    display: flex;
    gap: 10px;
    justify-content: center;
    flex-wrap: wrap;
}
.arch-box {
    background: var(--bg-dark-card);
    border: 1px solid var(--border-dark);
    border-radius: 10px;
    padding: 12px 22px;
    color: var(--text-on-dark);
    font-size: 0.85rem;
    font-weight: 500;
    text-align: center;
    min-width: 110px;
    transition: all 0.3s var(--ease-out-quart);
}
.arch-box:hover {
    border-color: var(--border-dark-hover);
    background: var(--bg-dark-card);
    color: var(--accent-bright);
    transform: translateY(-2px);
}
.arch-box.core {
    background: rgba(124,58,237,0.08);
    border-color: rgba(124,58,237,0.3);
    color: var(--accent-bright);
    font-weight: 600;
}
.arch-box.core:hover { background: rgba(124,58,237,0.15); }
.arch-arrow-down {
    text-align: center;
    color: var(--accent-dim);
    margin: 6px 0;
    opacity: 0.6;
}
.arch-arrow-down svg { width: 16px; height: 16px; }

/* ========================================
   MODULES
   ======================================== */
.modules-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 16px;
    margin-top: 64px;
}
.module-card {
    background: var(--bg-light-elevated);
    border: 1px solid var(--border-light);
    border-radius: 18px;
    padding: 36px 32px;
    transition: all 0.4s var(--ease-out-quart);
    position: relative;
    overflow: hidden;
}
.module-card::before {
    content: '';
    position: absolute;
    top: 0; left: 0; right: 0;
    height: 3px;
    background: linear-gradient(90deg, var(--accent), var(--accent-bright));
    transform: scaleX(0);
    transform-origin: left;
    transition: transform 0.4s var(--ease-out-quart);
}
.module-card:hover::before { transform: scaleX(1); }
.module-card:hover {
    border-color: var(--border-light-hover);
    box-shadow: var(--shadow-lift);
    transform: translateY(-4px);
}
.module-card .mod-num {
    font-family: var(--font-mono);
    font-size: 0.7rem;
    font-weight: 600;
    color: var(--accent-dim);
    letter-spacing: 2px;
    margin-bottom: 16px;
}
.module-card .mod-icon { width: 40px; height: 40px; margin-bottom: 20px; }
.module-card .mod-icon svg { width: 100%; height: 100%; stroke: var(--accent-dim); }
.module-card h3 {
    font-family: var(--font-display);
    font-size: 1.15rem;
    font-weight: 600;
    margin-bottom: 10px;
}
.module-card p {
    font-size: 0.88rem;
    color: var(--text-on-light-muted);
    line-height: 1.8;
}

/* ========================================
   SCENARIOS
   ======================================== */
.scenario-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 12px;
    margin-top: 64px;
}
.scenario-card {
    text-align: center;
    padding: 32px 16px;
    border-radius: 16px;
    background: var(--bg-dark-card);
    border: 1px solid var(--border-dark);
    transition: all 0.3s var(--ease-out-quart);
}
.scenario-card:hover {
    border-color: var(--border-dark-hover);
    background: var(--bg-dark-elevated);
    transform: translateY(-3px);
}
.scenario-card .sc-icon { width: 40px; height: 40px; margin: 0 auto 16px; }
.scenario-card .sc-icon svg { width: 100%; height: 100%; stroke: var(--accent); }
.scenario-card h3 {
    font-family: var(--font-display);
    font-size: 0.98rem;
    font-weight: 600;
    margin-bottom: 8px;
    color: #fff;
}
.scenario-card p { font-size: 0.8rem; color: var(--text-on-dark-muted); line-height: 1.6; }

/* ========================================
   CASES
   ======================================== */
.case-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 16px;
    margin-top: 64px;
}
.case-card {
    background: var(--bg-light-elevated);
    border-radius: 18px;
    overflow: hidden;
    border: 1px solid var(--border-light);
    transition: all 0.4s var(--ease-out-quart);
}
.case-card:hover { box-shadow: var(--shadow-lift); transform: translateY(-4px); }
.case-header {
    padding: 28px 28px 20px;
    background: linear-gradient(135deg, var(--bg-darkest), var(--bg-dark-elevated));
    color: #fff;
    position: relative;
    overflow: hidden;
}
.case-header::after {
    content: '';
    position: absolute;
    bottom: 0; left: 0; right: 0;
    height: 1px;
    background: linear-gradient(90deg, var(--accent), transparent);
}
.case-header .case-industry {
    font-family: var(--font-mono);
    font-size: 0.7rem;
    color: var(--accent);
    text-transform: uppercase;
    letter-spacing: 1.5px;
    margin-bottom: 8px;
}
.case-header h3 { font-family: var(--font-display); font-size: 1.15rem; font-weight: 600; }
.case-body { padding: 24px 28px; }
.case-body p { font-size: 0.88rem; color: var(--text-on-light-muted); line-height: 1.8; }
.case-tags { display: flex; gap: 8px; flex-wrap: wrap; margin-top: 16px; }
.case-tag {
    font-family: var(--font-mono);
    font-size: 0.7rem;
    color: var(--accent-dim);
    background: rgba(124,58,237,0.07);
    padding: 4px 10px;
    border-radius: 6px;
    font-weight: 600;
}

/* ========================================
   ABOUT
   ======================================== */
.about-grid {
    display: grid;
    grid-template-columns: 1.2fr 0.8fr;
    gap: 56px;
    align-items: center;
    margin-top: 64px;
}
.about-text h3 {
    font-family: var(--font-display);
    font-size: 1.5rem;
    font-weight: 600;
    margin-bottom: 20px;
}
.about-text p {
    color: var(--text-on-light-muted);
    line-height: 1.9;
    margin-bottom: 16px;
    font-size: 0.95rem;
}
.about-stats {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 16px;
    margin-top: 32px;
}
.about-stat {
    background: var(--bg-light-elevated);
    border: 1px solid var(--border-light);
    border-radius: 14px;
    padding: 24px;
    text-align: center;
    transition: all 0.3s;
}
.about-stat:hover { border-color: var(--border-light-hover); box-shadow: var(--shadow-soft); }
.about-stat .num {
    font-family: var(--font-display);
    font-size: 1.8rem;
    font-weight: 700;
    color: var(--accent-dim);
}
.about-stat .label { font-size: 0.82rem; color: var(--text-on-light-muted); margin-top: 4px; }

.about-visual {
    background: linear-gradient(135deg, var(--bg-darkest), var(--bg-dark-elevated));
    border-radius: 24px;
    padding: 40px;
    text-align: center;
    border: 1px solid var(--border-dark);
    position: relative;
    overflow: hidden;
}
.about-visual::before {
    content: '';
    position: absolute;
    inset: 0;
    background-image:
        linear-gradient(rgba(124,58,237,0.03) 1px, transparent 1px),
        linear-gradient(90deg, rgba(124,58,237,0.03) 1px, transparent 1px);
    background-size: 32px 32px;
}
.about-visual-inner { position: relative; }
.about-visual .germany-badge {
    width: 64px; height: 64px;
    margin: 0 auto 20px;
    border-radius: 16px;
    background: rgba(124,58,237,0.1);
    border: 1px solid rgba(124,58,237,0.2);
    display: flex;
    align-items: center;
    justify-content: center;
}
.about-visual .germany-badge svg { width: 32px; height: 32px; }
.about-visual h4 { font-family: var(--font-display); font-size: 1.2rem; font-weight: 600; color: #fff; margin-bottom: 6px; }
.about-visual p { color: var(--text-on-dark-muted); font-size: 0.85rem; }
.ecosystem-list {
    margin-top: 28px;
    padding-top: 24px;
    border-top: 1px solid var(--border-dark);
    text-align: left;
}
.ecosystem-list .eco-label {
    font-family: var(--font-mono);
    font-size: 0.7rem;
    color: var(--text-on-dark-dim);
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: 12px;
}
.eco-item {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 10px;
}
.eco-item .dot {
    width: 8px; height: 8px;
    border-radius: 50%;
    flex-shrink: 0;
}
.eco-item .eco-text { font-size: 0.88rem; color: var(--text-on-dark); }
.eco-item .eco-text strong { color: var(--accent-bright); }

/* ========================================
   PARTNER
   ======================================== */
.partner-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 48px;
    margin-top: 64px;
    align-items: center;
}
.partner-info h3 {
    font-family: var(--font-display);
    font-size: 1.6rem;
    font-weight: 600;
    color: #fff;
    margin-bottom: 16px;
}
.partner-info > p { color: var(--text-on-dark-muted); line-height: 1.9; margin-bottom: 28px; }
.partner-features { display: grid; gap: 14px; }
.partner-feature {
    display: flex;
    align-items: flex-start;
    gap: 14px;
    padding: 16px;
    background: var(--bg-dark-card);
    border: 1px solid var(--border-dark);
    border-radius: 12px;
    transition: all 0.3s;
}
.partner-feature:hover { border-color: var(--border-dark-hover); background: var(--bg-dark-elevated); }
.partner-feature .check-icon {
    width: 24px; height: 24px;
    flex-shrink: 0;
    margin-top: 1px;
}
.partner-feature .check-icon svg { width: 100%; height: 100%; stroke: var(--accent); }
.partner-feature span { color: var(--text-on-dark); font-size: 0.9rem; line-height: 1.6; }
.partner-feature span strong { color: #fff; }

.partner-card {
    background: var(--bg-dark-card);
    border: 1px solid var(--border-dark);
    border-radius: 20px;
    padding: 40px;
}
.partner-card h4 {
    font-family: var(--font-display);
    font-size: 1.15rem;
    font-weight: 600;
    color: #fff;
    margin-bottom: 24px;
    padding-bottom: 16px;
    border-bottom: 1px solid var(--border-dark);
    display: flex;
    align-items: center;
    gap: 10px;
}
.partner-contact-item {
    display: flex;
    gap: 14px;
    margin-bottom: 18px;
    align-items: flex-start;
}
.partner-contact-item .ci-icon {
    width: 38px; height: 38px;
    border-radius: 10px;
    background: rgba(124,58,237,0.1);
    border: 1px solid rgba(124,58,237,0.15);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}
.partner-contact-item .ci-icon svg { width: 18px; height: 18px; stroke: var(--accent); }
.partner-contact-item .ci-label { font-size: 0.75rem; color: var(--text-on-dark-dim); margin-bottom: 2px; }
.partner-contact-item .ci-value { font-size: 0.92rem; color: #fff; font-weight: 500; }
.partner-card .btn-primary { margin-top: 12px; width: 100%; justify-content: center; }

/* QR code */
.qr-block {
    display: flex;
    align-items: center;
    gap: 16px;
    margin: 20px 0 12px;
    padding: 16px;
    background: rgba(255,255,255,0.03);
    border: 1px solid var(--border-dark);
    border-radius: 14px;
}
.qr-block img {
    width: 100px; height: 100px;
    border-radius: 10px;
    background: #fff;
    padding: 6px;
    flex-shrink: 0;
    object-fit: contain;
}
.qr-block .qr-info .ci-label { font-size: 0.75rem; color: var(--text-on-dark-dim); margin-bottom: 4px; }
.qr-block .qr-info .ci-value { font-size: 0.95rem; color: #fff; font-weight: 500; line-height: 1.6; }

/* ========================================
   CTA
   ======================================== */
.cta-section { padding: 80px 0; background: var(--bg-light); }
.cta-box {
    background: linear-gradient(135deg, var(--bg-darkest) 0%, var(--bg-dark-elevated) 100%);
    border-radius: 24px;
    padding: 64px 48px;
    text-align: center;
    position: relative;
    overflow: hidden;
    border: 1px solid var(--border-dark);
}
.cta-box::before {
    content: '';
    position: absolute;
    top: 0; left: 0; right: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--accent), transparent);
}
.cta-box::after {
    content: '';
    position: absolute;
    top: -50%; left: -50%;
    width: 200%; height: 200%;
    background: radial-gradient(circle at center, rgba(124,58,237,0.06), transparent 50%);
}
.cta-box h2 {
    position: relative;
    font-family: var(--font-display);
    font-size: clamp(1.6rem, 3vw, 2.2rem);
    font-weight: 700;
    color: #fff;
    margin-bottom: 16px;
}
.cta-box p {
    position: relative;
    color: var(--text-on-dark-muted);
    font-size: 1.05rem;
    margin-bottom: 32px;
}
.cta-box .btn-primary { position: relative; }

/* ========================================
   FOOTER
   ======================================== */
.footer {
    background: var(--bg-darkest);
    color: var(--text-on-dark-muted);
    padding: 30px 0;
    border-top: 1px solid var(--border-dark);
}
.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: 40px;
    margin-bottom: 40px;
}
.footer-brand h3 {
    font-family: var(--font-display);
    color: #fff;
    font-size: 1.3rem;
    font-weight: 700;
    margin-bottom: 12px;
    display: flex;
    align-items: center;
    gap: 8px;
}
.footer-brand h3 img { height: 36px; width: auto; display: block; }
.footer-brand h3 span { color: var(--accent); }
.footer-brand p { font-size: 0.85rem; line-height: 1.8; max-width: 320px; }
.footer-col h4 { color: #fff; font-size: 0.9rem; font-weight: 600; margin-bottom: 16px; }
.footer-col ul li { margin-bottom: 10px; }
.footer-col ul li a { font-size: 0.85rem; color: var(--text-on-dark-muted); transition: color 0.2s; }
.footer-col ul li a:hover { color: var(--accent-bright); }
.footer-bottom {
    padding-top: 0;
    display: flex;
    justify-content: center;
    align-items: center;
    text-align: center;
    font-size: 0.8rem;
    color: var(--text-on-dark-dim);
}
.footer-bottom .made-tag { color: var(--accent-dim); font-family: var(--font-mono); font-size: 0.72rem; }

/* ========================================
   SCROLL ANIMATIONS
   ======================================== */
.reveal {
    opacity: 0;
    transform: translateY(40px);
    transition: opacity 0.7s var(--ease-out-expo), transform 0.7s var(--ease-out-expo);
}
.reveal.visible { opacity: 1; transform: translateY(0); }
.reveal-delay-1 { transition-delay: 0.1s; }
.reveal-delay-2 { transition-delay: 0.2s; }
.reveal-delay-3 { transition-delay: 0.3s; }

/* Clip-path reveal */
.clip-reveal {
    opacity: 0;
    clip-path: inset(0 100% 0 0);
    transition: opacity 0.6s var(--ease-out-expo), clip-path 0.8s var(--ease-out-expo);
}
.clip-reveal.visible { opacity: 1; clip-path: inset(0 0 0 0); }

@media (prefers-reduced-motion: reduce) {
    * { animation-duration: 0.01ms !important; transition-duration: 0.01ms !important; }
}

/* ========================================
   RESPONSIVE
   ======================================== */
@media (max-width: 968px) {
    .banner h1 { font-size: clamp(2.2rem, 8vw, 3.2rem); }
    .banner-content { grid-template-columns: 1fr; text-align: center; }
    .banner-text { text-align: center; }
    .banner-visual { display: none; }
    .banner-tagline, .banner-desc { max-width: 100%; margin-left: auto; margin-right: auto; }
    .banner-buttons { justify-content: center; }
    .banner-stats { gap: 32px; }
    .intro-grid { grid-template-columns: 1fr; }
    .intro-card { border-right: none; border-bottom: 1px solid var(--border-light); }
    .intro-card:last-child { border-bottom: none; }
    .bento-grid { grid-template-columns: 1fr; }
    .bento-card.large { grid-column: span 1; }
    .modules-grid, .case-grid { grid-template-columns: 1fr; }
    .scenario-grid { grid-template-columns: repeat(2, 1fr); }
    .about-grid, .partner-grid { grid-template-columns: 1fr; }
    .footer-grid { grid-template-columns: 1fr 1fr; }
    .nav-links { display: none; }
    .nav-toggle { display: block; }
    .nav-links.open {
        display: flex;
        position: absolute;
        top: 100%; left: 0; right: 0;
        flex-direction: column;
        background: var(--bg-darkest);
        padding: 20px 24px;
        gap: 14px;
        border-bottom: 1px solid var(--border-dark);
    }
    .section { padding: 80px 0; }
    .loop-steps { flex-direction: column; }
    .loop-arrow { transform: rotate(90deg); justify-content: center; }
    .arch-layer-boxes { flex-direction: column; align-items: stretch; }
    .arch-box { min-width: auto; }
    .partner-card { padding: 32px 24px; }
    .closed-loop { padding: 32px 20px; }
}
@media (max-width: 480px) {
    .scenario-grid { grid-template-columns: 1fr; }
    .footer-grid { grid-template-columns: 1fr; }
    .footer-bottom { flex-direction: column; gap: 8px; text-align: center; }
    .banner-stats { gap: 20px; }
}

/* ========================================
   FLOATING ACTION BUTTONS
   ======================================== */
.fab-group {
    position: fixed;
    right: 24px;
    top: 50%;
    transform: translateY(-50%);
    z-index: 900;
    display: flex;
    flex-direction: column;
    gap: 12px;
}
.fab {
    width: 52px; height: 52px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    border: none;
    box-shadow: 0 6px 20px rgba(0,0,0,0.15);
    transition: all 0.3s var(--ease-out-quart);
    position: relative;
}
.fab svg { width: 24px; height: 24px; }
.fab-phone { background: var(--accent); color: #fff; }
.fab-phone:hover { background: var(--accent-bright); transform: scale(1.08); box-shadow: 0 8px 28px rgba(124,58,237,0.4); }
.fab-wechat { background: #07c160; color: #fff; }
.fab-wechat:hover { background: #06ad56; transform: scale(1.08); box-shadow: 0 8px 28px rgba(7,193,96,0.4); }
/* Hover panel */
.fab-hover-panel {
    position: absolute;
    right: 66px;
    top: 50%;
    transform: translateY(-50%) translateX(12px);
    background: #fff;
    border-radius: 16px;
    padding: 22px 26px;
    box-shadow: 0 12px 40px rgba(0,0,0,0.18);
    opacity: 0;
    pointer-events: none;
    transition: all 0.3s var(--ease-out-quart);
    white-space: nowrap;
    z-index: 910;
}
.fab:hover .fab-hover-panel,
.fab.fab-active .fab-hover-panel {
    opacity: 1;
    transform: translateY(-50%) translateX(0);
    pointer-events: auto;
}
.fab-hover-panel .panel-title {
    font-family: var(--font-display);
    font-size: 1rem;
    font-weight: 700;
    color: #18181b;
    margin-bottom: 4px;
}
.fab-hover-panel .panel-sub {
    font-size: 0.76rem;
    color: #a1a1aa;
    margin-bottom: 12px;
}
.fab-hover-panel .phone-num {
    font-family: var(--font-display);
    font-size: 1.55rem;
    font-weight: 700;
    color: var(--accent);
    letter-spacing: 1px;
    text-decoration: none;
    display: block;
    margin-bottom: 12px;
    transition: color 0.2s;
}
.fab-hover-panel .phone-num:hover { color: var(--accent-bright); }
.fab-hover-panel .panel-btn {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    background: var(--accent);
    color: #fff;
    padding: 8px 18px;
    border-radius: 8px;
    font-weight: 600;
    font-size: 0.82rem;
    border: none;
    cursor: pointer;
    text-decoration: none;
    transition: all 0.25s var(--ease-out-quart);
}
.fab-hover-panel .panel-btn:hover { background: var(--accent-bright); transform: translateY(-1px); }
.fab-hover-panel .qr-img {
    width: 130px; height: 130px;
    border-radius: 10px;
    border: 1px solid #e4e4e7;
    display: block;
    margin-bottom: 8px;
}
.fab-hover-panel .qr-tip {
    font-size: 0.72rem;
    color: #a1a1aa;
    text-align: center;
}

@media (max-width: 480px) {
    .fab-group { right: 16px; top: 50%; }
    .fab { width: 46px; height: 46px; }
    .fab svg { width: 20px; height: 20px; }
    .fab-hover-panel { right: 56px; padding: 18px 20px; }
    .fab-hover-panel .phone-num { font-size: 1.3rem; }
    .fab-hover-panel .qr-img { width: 110px; height: 110px; }
}