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

:root {
    --blue: #1677ff;
    --blue-light: #4096ff;
    --blue-dark: #0958d9;
    --gradient: linear-gradient(135deg, #1677ff 0%, #2563eb 50%, #1d4ed8 100%);
    --radius: 16px;
    --radius-sm: 10px;
}

:root,
[data-theme="dark"] {
    --blue-glow: rgba(22, 119, 255, 0.35);
    --bg: #060a14;
    --bg-2: #0a1020;
    --bg-3: #0f1729;
    --card: rgba(255, 255, 255, 0.035);
    --card-hover: rgba(255, 255, 255, 0.055);
    --border: rgba(255, 255, 255, 0.08);
    --border-light: rgba(255, 255, 255, 0.14);
    --text: #f0f4ff;
    --text-2: rgba(240, 244, 255, 0.72);
    --text-3: rgba(240, 244, 255, 0.48);
    --gradient-text: linear-gradient(135deg, #ffffff 0%, #93c5fd 100%);
    --shadow: 0 24px 80px rgba(0, 0, 0, 0.45);
    --hero-card-bg: rgba(15, 23, 41, 0.85);
    --hero-card-border: rgba(22, 119, 255, 0.3);
    --hero-grid-line: rgba(255, 255, 255, 0.025);
    --hero-orb-1: rgba(22, 119, 255, 0.18);
    --hero-orb-2: rgba(37, 99, 235, 0.12);
    --hero-orb-3: rgba(105, 177, 255, 0.08);
    --surface-inset: rgba(255, 255, 255, 0.03);
    --btn-ghost-bg: rgba(255, 255, 255, 0.04);
    --btn-ghost-hover: rgba(255, 255, 255, 0.08);
    --code-bg: rgba(22, 119, 255, 0.12);
    --code-border: rgba(22, 119, 255, 0.2);
    --code-color: #93c5fd;
    --link-hover: #bfdbfe;
    --cap-featured-bg: linear-gradient(135deg, rgba(22, 119, 255, 0.06) 0%, rgba(37, 99, 235, 0.03) 100%);
    --cap-hover-shadow: 0 16px 48px rgba(0, 0, 0, 0.3);
    --theme-toggle-bg: rgba(255, 255, 255, 0.06);
    --theme-toggle-border: rgba(255, 255, 255, 0.12);
    --theme-toggle-color: var(--text-2);
    color-scheme: dark;
}

[data-theme="light"] {
    --blue-glow: rgba(22, 119, 255, 0.22);
    --bg: #f4f7fb;
    --bg-2: #ffffff;
    --bg-3: #eef2f7;
    --card: #ffffff;
    --card-hover: #f8fafc;
    --border: rgba(15, 23, 42, 0.08);
    --border-light: rgba(15, 23, 42, 0.12);
    --text: #0f172a;
    --text-2: #475569;
    --text-3: #64748b;
    --gradient-text: linear-gradient(135deg, #0f172a 0%, #1677ff 100%);
    --shadow: 0 20px 60px rgba(15, 23, 42, 0.08);
    --hero-card-bg: rgba(255, 255, 255, 0.94);
    --hero-card-border: rgba(22, 119, 255, 0.22);
    --hero-grid-line: rgba(15, 23, 42, 0.045);
    --hero-orb-1: rgba(22, 119, 255, 0.14);
    --hero-orb-2: rgba(37, 99, 235, 0.1);
    --hero-orb-3: rgba(105, 177, 255, 0.08);
    --surface-inset: rgba(15, 23, 42, 0.04);
    --btn-ghost-bg: rgba(15, 23, 42, 0.04);
    --btn-ghost-hover: rgba(15, 23, 42, 0.08);
    --code-bg: rgba(22, 119, 255, 0.08);
    --code-border: rgba(22, 119, 255, 0.15);
    --code-color: #0958d9;
    --link-hover: #0958d9;
    --cap-featured-bg: linear-gradient(135deg, rgba(22, 119, 255, 0.06) 0%, rgba(255, 255, 255, 1) 100%);
    --cap-hover-shadow: 0 16px 48px rgba(15, 23, 42, 0.1);
    --theme-toggle-bg: rgba(255, 255, 255, 0.85);
    --theme-toggle-border: rgba(15, 23, 42, 0.1);
    --theme-toggle-color: #475569;
    color-scheme: light;
}

[data-theme="light"] .pill-nfc { color: #0958d9; background: rgba(22, 119, 255, 0.1); border-color: rgba(22, 119, 255, 0.25); }
[data-theme="light"] .pill-ai { color: #6d28d9; background: rgba(124, 58, 237, 0.08); border-color: rgba(124, 58, 237, 0.2); }
[data-theme="light"] .pill-video { color: #15803d; background: rgba(22, 163, 74, 0.08); border-color: rgba(22, 163, 74, 0.2); }
[data-theme="light"] .hc-tag-nfc { color: #0958d9; }
[data-theme="light"] .hc-tag-ai { color: #6d28d9; }
[data-theme="light"] .hc-tag-video { color: #15803d; }
[data-theme="light"] .platform-section {
    background: linear-gradient(180deg, var(--bg-2) 0%, var(--bg) 100%);
}

html { scroll-behavior: smooth; }

body {
    font-family: 'Noto Sans SC', -apple-system, BlinkMacSystemFont, sans-serif;
    background: var(--bg);
    color: var(--text);
    line-height: 1.65;
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
    transition: background-color 0.35s ease, color 0.35s ease;
}

.container {
    max-width: 1240px;
    margin: 0 auto;
    padding: 0 28px;
}

code {
    font-family: 'SF Mono', 'Fira Code', monospace;
    font-size: 0.88em;
    padding: 2px 7px;
    background: var(--code-bg);
    border: 1px solid var(--code-border);
    border-radius: 5px;
    color: var(--code-color);
}

a { color: var(--blue-light); transition: color 0.2s; }
a:hover { color: var(--link-hover); }

/* ===== Theme Toggle ===== */
.theme-toggle {
    position: fixed;
    top: 20px;
    right: 20px;
    z-index: 1000;
    width: 44px;
    height: 44px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 12px;
    border: 1px solid var(--theme-toggle-border);
    background: var(--theme-toggle-bg);
    color: var(--theme-toggle-color);
    cursor: pointer;
    backdrop-filter: blur(12px);
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.12);
    transition: background 0.25s, border-color 0.25s, transform 0.2s;
}

.theme-toggle:hover {
    transform: translateY(-1px);
    border-color: rgba(22, 119, 255, 0.35);
    color: var(--blue);
}

.theme-toggle svg {
    width: 20px;
    height: 20px;
    position: absolute;
    transition: opacity 0.25s, transform 0.35s;
}

.theme-toggle .icon-sun { opacity: 0; transform: rotate(-30deg) scale(0.7); }
.theme-toggle .icon-moon { opacity: 1; transform: rotate(0) scale(1); }

[data-theme="light"] .theme-toggle .icon-sun { opacity: 1; transform: rotate(0) scale(1); }
[data-theme="light"] .theme-toggle .icon-moon { opacity: 0; transform: rotate(30deg) scale(0.7); }

.logo-mark {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 38px;
    height: 38px;
    background: var(--gradient);
    border-radius: 11px;
    font-size: 16px;
    font-weight: 800;
    color: #fff;
    box-shadow: 0 4px 16px var(--blue-glow);
}

.logo-mark.sm { width: 30px; height: 30px; font-size: 13px; border-radius: 8px; }
.logo-accent { color: var(--blue-light); }

/* ===== Buttons ===== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 13px 28px;
    font-size: 15px;
    font-weight: 600;
    text-decoration: none;
    border-radius: 11px;
    border: none;
    cursor: pointer;
    transition: all 0.25s ease;
    font-family: inherit;
    white-space: nowrap;
}

.btn-primary {
    background: var(--gradient);
    color: #fff;
    box-shadow: 0 4px 24px var(--blue-glow);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 32px rgba(22,119,255,0.5);
    color: #fff;
}

.btn-xl { padding: 16px 36px; font-size: 16px; border-radius: 12px; }

.btn-ghost {
    background: var(--btn-ghost-bg);
    color: var(--text);
    border: 1px solid var(--border-light);
}

.btn-ghost:hover { background: var(--btn-ghost-hover); color: var(--text); }

.btn-ghost-light {
    background: rgba(255,255,255,0.08);
    color: #fff;
    border: 1px solid rgba(255,255,255,0.2);
}

.btn-ghost-light:hover { background: rgba(255,255,255,0.14); color: #fff; }

.btn-full { width: 100%; }

/* ===== Hero ===== */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    position: relative;
    overflow: hidden;
}

.hero-bg { position: absolute; inset: 0; }

.hero-orb {
    position: absolute;
    border-radius: 50%;
    filter: blur(80px);
    pointer-events: none;
}

.hero-orb-1 {
    width: 600px; height: 600px;
    background: var(--hero-orb-1);
    top: -10%; left: -5%;
    animation: orbFloat 12s ease-in-out infinite;
}

.hero-orb-2 {
    width: 500px; height: 500px;
    background: var(--hero-orb-2);
    bottom: -5%; right: -5%;
    animation: orbFloat 15s ease-in-out infinite reverse;
}

.hero-orb-3 {
    width: 300px; height: 300px;
    background: var(--hero-orb-3);
    top: 40%; left: 50%;
    animation: orbFloat 10s ease-in-out infinite 2s;
}

@keyframes orbFloat {
    0%, 100% { transform: translate(0, 0); }
    50% { transform: translate(30px, -20px); }
}

.hero-grid {
    position: absolute;
    inset: 0;
    background-image:
        linear-gradient(var(--hero-grid-line) 1px, transparent 1px),
        linear-gradient(90deg, var(--hero-grid-line) 1px, transparent 1px);
    background-size: 64px 64px;
    mask-image: radial-gradient(ellipse 70% 60% at 50% 40%, black, transparent);
}

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

.particle {
    position: absolute;
    width: 3px; height: 3px;
    background: var(--blue);
    border-radius: 50%;
    opacity: 0;
    animation: particleRise 18s infinite;
}

@keyframes particleRise {
    0% { transform: translateY(100vh) scale(0); opacity: 0; }
    8% { opacity: 0.4; }
    92% { opacity: 0.4; }
    100% { transform: translateY(-10vh) scale(1); opacity: 0; }
}

.hero-layout {
    position: relative;
    z-index: 1;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
    padding: 60px 28px 80px;
    width: 100%;
    max-width: 1240px;
    margin: 0 auto;
}

.hero-brand {
    display: inline-flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 28px;
    animation: fadeUp 0.8s ease both;
}

.jk-brand-pill {
    padding: 8px 16px 8px 10px;
    border-radius: 999px;
    background: linear-gradient(135deg, rgba(255, 255, 255, 0.96) 0%, rgba(240, 247, 255, 0.98) 100%);
    border: 1px solid rgba(22, 119, 255, 0.2);
    box-shadow: 0 10px 24px rgba(37, 99, 235, 0.12);
    max-width: 100%;
}

.jk-brand-icon-wrap {
    width: 30px;
    height: 30px;
    border-radius: 999px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
    background: linear-gradient(135deg, #eff6ff 0%, #dbeafe 100%);
    border: 1px solid rgba(37, 99, 235, 0.25);
    flex-shrink: 0;
}

.jk-brand-icon {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
}

.jk-brand-name {
    font-size: 18px;
    font-weight: 900;
    letter-spacing: 0.2px;
    color: #0f172a;
    line-height: 1.15;
    white-space: nowrap;
}

.jk-brand-name-accent {
    color: #1677ff;
}

.hero-title {
    font-size: clamp(40px, 6.2vw, 76px);
    font-weight: 900;
    letter-spacing: -0.02em;
    line-height: 1.08;
    background: var(--gradient-text);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    animation: fadeUp 0.8s ease 0.1s both;
    max-width: 12em;
}

.title-accent {
    background: var(--gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-tagline {
    font-size: clamp(18px, 2.5vw, 26px);
    font-weight: 600;
    color: var(--text);
    margin: 16px 0 20px;
    animation: fadeUp 0.8s ease 0.2s both;
}

.hero-pills {
    display: flex;
    gap: 10px;
    flex-wrap: wrap;
    margin-bottom: 22px;
    animation: fadeUp 0.8s ease 0.25s both;
}

.hero-pill {
    font-size: 14px;
    font-weight: 600;
    padding: 8px 18px;
    border-radius: 100px;
    border: 1px solid transparent;
}

.pill-nfc {
    background: rgba(22, 119, 255, 0.14);
    border-color: rgba(22, 119, 255, 0.35);
    color: #93c5fd;
}

.pill-ai {
    background: rgba(124, 58, 237, 0.14);
    border-color: rgba(124, 58, 237, 0.35);
    color: #c4b5fd;
}

.pill-video {
    background: rgba(22, 163, 74, 0.14);
    border-color: rgba(22, 163, 74, 0.35);
    color: #86efac;
}

.hero-desc strong {
    color: var(--text);
    font-weight: 600;
}

.hero-desc {
    font-size: 16px;
    color: var(--text-2);
    line-height: 1.8;
    max-width: 540px;
    animation: fadeUp 0.8s ease 0.3s both;
}

.hero-actions {
    display: flex;
    gap: 14px;
    flex-wrap: wrap;
    margin-top: 36px;
    animation: fadeUp 0.8s ease 0.4s both;
}

.hero-meta {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-top: 28px;
    font-size: 14px;
    color: var(--text-3);
    animation: fadeUp 0.8s ease 0.5s both;
}

.hero-meta a {
    color: var(--blue-light);
    font-weight: 600;
    text-decoration: none;
}

.hero-meta a:hover { text-decoration: underline; }

@keyframes fadeUp {
    from { opacity: 0; transform: translateY(28px); }
    to { opacity: 1; transform: translateY(0); }
}

/* Hero Visual */
.hero-visual { animation: fadeUp 1s ease 0.3s both; }

.hero-card-stack {
    position: relative;
    height: 420px;
}

.hero-card {
    position: absolute;
    border-radius: 20px;
    border: 1px solid var(--border-light);
    background: var(--hero-card-bg);
    backdrop-filter: blur(20px);
    box-shadow: var(--shadow);
}

.hero-card-back {
    width: 320px;
    top: 20px;
    right: 0;
    padding: 28px;
    transform: rotate(3deg);
    opacity: 0.7;
}

.hero-card-front {
    width: 340px;
    bottom: 0;
    left: 0;
    padding: 36px;
    text-align: center;
    border-color: var(--hero-card-border);
    box-shadow: 0 32px 80px rgba(22,119,255,0.15), var(--shadow);
}

.hc-label {
    font-size: 12px;
    font-weight: 600;
    color: var(--text-3);
    text-transform: uppercase;
    letter-spacing: 0.08em;
    margin-bottom: 16px;
}

.hc-rows { display: flex; flex-direction: column; gap: 12px; }

.hc-row {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 14px;
    color: var(--text-2);
    padding: 10px 14px;
    background: var(--surface-inset);
    border-radius: 8px;
}

.hc-dot { width: 8px; height: 8px; border-radius: 50%; flex-shrink: 0; }
.hc-dot.blue { background: #1677ff; }
.hc-dot.green { background: #22c55e; }
.hc-dot.purple { background: #a78bfa; }

.hc-nfc-ring {
    width: 100px;
    height: 100px;
    margin: 0 auto 20px;
    border-radius: 50%;
    border: 2px solid rgba(22,119,255,0.4);
    display: flex;
    align-items: center;
    justify-content: center;
    animation: nfcPulse 3s ease-in-out infinite;
    position: relative;
}

.hc-nfc-ring::before {
    content: '';
    position: absolute;
    inset: -8px;
    border-radius: 50%;
    border: 1px solid rgba(22,119,255,0.15);
    animation: nfcPulse 3s ease-in-out infinite 0.5s;
}

@keyframes nfcPulse {
    0%, 100% { box-shadow: 0 0 0 0 rgba(22,119,255,0.3); }
    50% { box-shadow: 0 0 0 12px rgba(22,119,255,0); }
}

.hc-nfc-core {
    width: 64px;
    height: 64px;
    background: rgba(22,119,255,0.15);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--blue-light);
}

.hc-title {
    font-size: 18px;
    font-weight: 700;
    margin-bottom: 14px;
}

.hc-tags {
    display: flex;
    gap: 8px;
    justify-content: center;
    flex-wrap: wrap;
}

.hc-tags span,
.hc-tag {
    font-size: 12px;
    font-weight: 600;
    padding: 6px 14px;
    border-radius: 100px;
    border: 1px solid transparent;
}

.hc-tag-nfc {
    background: rgba(22, 119, 255, 0.15);
    border-color: rgba(22, 119, 255, 0.35);
    color: #93c5fd;
}

.hc-tag-ai {
    background: rgba(124, 58, 237, 0.15);
    border-color: rgba(124, 58, 237, 0.35);
    color: #c4b5fd;
}

.hc-tag-video {
    background: rgba(22, 163, 74, 0.15);
    border-color: rgba(22, 163, 74, 0.35);
    color: #86efac;
}

.scroll-indicator {
    position: absolute;
    bottom: 36px;
    left: 50%;
    transform: translateX(-50%);
    animation: bounce 2.5s infinite;
}

.scroll-indicator span {
    display: block;
    width: 22px; height: 36px;
    border: 2px solid var(--border-light);
    border-radius: 11px;
    position: relative;
}

.scroll-indicator span::before {
    content: '';
    position: absolute;
    top: 7px; left: 50%;
    transform: translateX(-50%);
    width: 3px; height: 7px;
    background: var(--blue);
    border-radius: 2px;
    animation: scrollDot 2.5s infinite;
}

@keyframes bounce {
    0%, 100% { transform: translateX(-50%) translateY(0); }
    50% { transform: translateX(-50%) translateY(-8px); }
}

@keyframes scrollDot {
    0% { opacity: 1; transform: translateX(-50%) translateY(0); }
    100% { opacity: 0; transform: translateX(-50%) translateY(10px); }
}

/* ===== Stats Strip ===== */
.stats-strip {
    background: var(--bg-2);
    border-top: 1px solid var(--border);
    border-bottom: 1px solid var(--border);
    padding: 48px 0;
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 1px;
    background: var(--border);
    border-radius: var(--radius);
    overflow: hidden;
}

.stat-block {
    background: var(--bg-2);
    padding: 32px 24px;
    text-align: center;
}

.stat-value {
    font-size: 48px;
    font-weight: 800;
    background: var(--gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    line-height: 1;
    margin-bottom: 8px;
}

.stat-unit { font-size: 28px; }

.stat-label {
    font-size: 14px;
    color: var(--text-3);
    font-weight: 500;
}

/* ===== Sections ===== */
.section { padding: 110px 0; transition: background-color 0.35s ease; }

.section-header { margin-bottom: 64px; max-width: 720px; }
.section-header.center { text-align: center; margin-left: auto; margin-right: auto; }

.section-eyebrow {
    display: block;
    font-size: 12px;
    font-weight: 600;
    letter-spacing: 0.14em;
    color: var(--blue-light);
    margin-bottom: 14px;
}

.section-title {
    font-size: clamp(28px, 4vw, 44px);
    font-weight: 800;
    letter-spacing: -0.02em;
    line-height: 1.2;
    margin-bottom: 18px;
}

.section-title.left { text-align: left; }

.section-lead {
    font-size: 17px;
    color: var(--text-2);
    line-height: 1.75;
}

.section-lead strong { color: var(--text); font-weight: 600; }

/* ===== Platform / Architecture ===== */
.platform-section { background: var(--bg-2); }

.arch-diagram {
    display: grid;
    grid-template-columns: 1fr auto 1fr auto 1fr;
    gap: 0;
    align-items: stretch;
    margin-bottom: 48px;
}

.arch-node {
    padding: 32px 28px;
    background: var(--card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    transition: border-color 0.3s, transform 0.3s;
}

.arch-node:hover {
    border-color: rgba(22,119,255,0.3);
    transform: translateY(-4px);
}

.arch-icon {
    width: 48px; height: 48px;
    background: rgba(22,119,255,0.12);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 18px;
    color: var(--blue-light);
}

.arch-icon svg { width: 24px; height: 24px; }

.arch-node h3 {
    font-size: 17px;
    font-weight: 700;
    margin-bottom: 10px;
}

.arch-node > p {
    font-size: 14px;
    color: var(--text-2);
    line-height: 1.65;
}

.workflow-inline {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 12px;
    flex-wrap: wrap;
    margin-top: 48px;
    padding: 28px 32px;
    background: var(--card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
}

.wf-inline-step {
    display: flex;
    align-items: center;
    gap: 10px;
}

.wf-inline-num {
    font-size: 14px;
    font-weight: 800;
    color: var(--blue-light);
    opacity: 0.7;
}

.wf-inline-text {
    font-size: 15px;
    font-weight: 600;
    color: var(--text);
}

.wf-inline-arrow {
    color: var(--text-3);
    font-size: 16px;
}

.industry-tags-block {
    display: flex;
    align-items: center;
    gap: 20px;
    flex-wrap: wrap;
    margin-top: 40px;
    padding: 24px 28px;
    background: var(--card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
}

.industry-tags-label {
    font-size: 13px;
    font-weight: 600;
    color: var(--text-3);
    white-space: nowrap;
}

.industry-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
}

.industry-tags span {
    font-size: 14px;
    font-weight: 500;
    padding: 6px 16px;
    background: rgba(22, 119, 255, 0.08);
    border: 1px solid rgba(22, 119, 255, 0.15);
    border-radius: 100px;
    color: var(--text-2);
}

.arch-connector {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 0 12px;
    gap: 8px;
}

.arch-line {
    width: 2px;
    flex: 1;
    min-height: 24px;
    background: linear-gradient(to bottom, transparent, rgba(22,119,255,0.4), transparent);
}

.arch-payload {
    font-size: 10px;
    font-family: monospace;
    color: var(--text-3);
    writing-mode: vertical-rl;
    letter-spacing: 0.05em;
    white-space: nowrap;
}

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

.concept-card {
    padding: 32px 28px;
    background: var(--card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    transition: all 0.3s;
}

.concept-card:hover {
    border-color: rgba(22,119,255,0.25);
    background: var(--card-hover);
}

.concept-num {
    font-size: 36px;
    font-weight: 900;
    background: var(--gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    opacity: 0.35;
    line-height: 1;
    margin-bottom: 14px;
}

.concept-card h3 {
    font-size: 18px;
    font-weight: 700;
    margin-bottom: 10px;
}

.concept-card p {
    font-size: 14px;
    color: var(--text-2);
    line-height: 1.7;
}

/* ===== Capabilities ===== */
.capabilities-section { background: var(--bg); }

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

.cap-grid-core {
    margin-bottom: 20px;
}

.cap-grid-more {
    grid-template-columns: repeat(4, 1fr);
}

.cap-card-compact {
    padding: 24px 22px;
}

.cap-card-compact h3 {
    font-size: 16px;
    font-weight: 700;
    margin-bottom: 8px;
}

.cap-card-compact p {
    font-size: 13px;
    color: var(--text-2);
    line-height: 1.65;
}

.cap-card {
    padding: 32px 28px;
    background: var(--card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    transition: all 0.3s;
    display: flex;
    flex-direction: column;
}

.cap-card:hover {
    border-color: rgba(22,119,255,0.25);
    transform: translateY(-4px);
    box-shadow: var(--cap-hover-shadow);
}

.cap-featured {
    grid-row: span 1;
    border-color: rgba(22,119,255,0.2);
    background: var(--cap-featured-bg);
}

.cap-icon {
    width: 48px; height: 48px;
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 18px;
}

.cap-icon svg { width: 24px; height: 24px; }

.cap-icon-blue { background: rgba(22,119,255,0.15); color: #60a5fa; }
.cap-icon-green { background: rgba(34,197,94,0.12); color: #4ade80; }
.cap-icon-purple { background: rgba(167,139,250,0.12); color: #a78bfa; }
.cap-icon-orange { background: rgba(251,146,60,0.12); color: #fb923c; }
.cap-icon-cyan { background: rgba(34,211,238,0.12); color: #22d3ee; }
.cap-icon-red { background: rgba(248,113,113,0.12); color: #f87171; }

.cap-tag {
    font-size: 11px;
    font-weight: 600;
    letter-spacing: 0.04em;
    color: var(--text-3);
    margin-bottom: 10px;
    text-transform: uppercase;
}

.cap-card h3 {
    font-size: 20px;
    font-weight: 700;
    margin-bottom: 10px;
}

.cap-desc {
    font-size: 14px;
    color: var(--text-2);
    line-height: 1.7;
    margin-bottom: 18px;
    flex: 1;
}

.cap-list {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 7px;
    border-top: 1px solid var(--border);
    padding-top: 16px;
}

.cap-list li {
    font-size: 13px;
    color: var(--text-3);
    padding-left: 14px;
    position: relative;
}

.cap-list li::before {
    content: '→';
    position: absolute;
    left: 0;
    color: var(--blue);
    font-size: 11px;
}

/* ===== Industries ===== */
.industries-section { background: var(--bg-2); }

.industry-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 16px;
    margin-bottom: 40px;
}

.industry-card {
    padding: 28px 22px;
    background: var(--card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    text-align: center;
    transition: all 0.3s;
    cursor: default;
}

.industry-card:hover {
    transform: translateY(-4px);
    border-color: rgba(22,119,255,0.25);
}

.industry-icon { font-size: 32px; margin-bottom: 12px; }

.industry-card h3 {
    font-size: 17px;
    font-weight: 700;
    margin-bottom: 8px;
}

.industry-card p {
    font-size: 13px;
    color: var(--text-3);
    line-height: 1.6;
}

.functional-scenes {
    display: flex;
    align-items: center;
    gap: 16px;
    flex-wrap: wrap;
    padding: 24px 28px;
    background: var(--card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
}

.fs-label {
    font-size: 13px;
    font-weight: 600;
    color: var(--text-3);
    white-space: nowrap;
}

.fs-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.fs-tags span {
    font-size: 12px;
    font-family: monospace;
    padding: 5px 12px;
    background: rgba(255,255,255,0.04);
    border: 1px solid var(--border);
    border-radius: 6px;
    color: var(--text-2);
}

/* ===== Workflow ===== */
.workflow-section { background: var(--bg); }

.workflow-steps {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 24px;
    max-width: 960px;
    margin: 0 auto;
}

.wf-step {
    display: flex;
    gap: 24px;
    padding: 32px 28px;
    background: var(--card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    transition: all 0.3s;
}

.wf-step:hover {
    border-color: rgba(22,119,255,0.25);
    transform: translateY(-3px);
}

.wf-num {
    font-size: 40px;
    font-weight: 900;
    background: var(--gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    opacity: 0.5;
    line-height: 1;
    flex-shrink: 0;
    min-width: 56px;
}

.wf-body h3 {
    font-size: 18px;
    font-weight: 700;
    margin-bottom: 8px;
}

.wf-body p {
    font-size: 14px;
    color: var(--text-2);
    line-height: 1.7;
}

/* ===== CTA ===== */
.cta-section { padding: 80px 0; background: var(--bg-2); }

.cta-panel {
    position: relative;
    padding: 72px 64px;
    border-radius: 24px;
    border: 1px solid rgba(22,119,255,0.25);
    background: linear-gradient(135deg, rgba(22,119,255,0.12) 0%, rgba(37,99,235,0.06) 100%);
    overflow: hidden;
    text-align: center;
}

.cta-glow {
    position: absolute;
    width: 400px; height: 400px;
    background: rgba(22,119,255,0.15);
    border-radius: 50%;
    filter: blur(80px);
    top: -100px; left: 50%;
    transform: translateX(-50%);
    pointer-events: none;
}

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

.cta-content h2 {
    font-size: clamp(26px, 4vw, 40px);
    font-weight: 800;
    margin-bottom: 14px;
    letter-spacing: -0.02em;
}

.cta-content p {
    font-size: 17px;
    color: var(--text-2);
    margin-bottom: 36px;
}

.cta-actions {
    display: flex;
    gap: 14px;
    justify-content: center;
    flex-wrap: wrap;
}

/* ===== About ===== */
.about-section { background: var(--bg); }

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

.about-text p {
    font-size: 16px;
    color: var(--text-2);
    line-height: 1.8;
    margin-bottom: 18px;
}

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

.about-highlights {
    display: flex;
    flex-direction: column;
    gap: 16px;
    margin-top: 32px;
}

.ah-item {
    display: flex;
    flex-direction: column;
    gap: 4px;
    padding: 18px 20px;
    background: var(--card);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
}

.ah-item strong {
    font-size: 14px;
    font-weight: 700;
    color: var(--text);
}

.ah-item span {
    font-size: 13px;
    color: var(--text-3);
}

.about-card {
    background: var(--card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    overflow: hidden;
}

.about-card-header {
    padding: 20px 28px;
    background: rgba(22,119,255,0.08);
    border-bottom: 1px solid var(--border);
    font-size: 15px;
    font-weight: 700;
}

.about-product-list { padding: 8px 0; }

.apl-item {
    display: flex;
    align-items: flex-start;
    gap: 14px;
    padding: 18px 28px;
    border-bottom: 1px solid var(--border);
}

.apl-item:last-child { border-bottom: none; }

.apl-dot {
    width: 8px; height: 8px;
    border-radius: 50%;
    background: var(--blue);
    margin-top: 6px;
    flex-shrink: 0;
}

.apl-item strong {
    display: block;
    font-size: 15px;
    font-weight: 600;
    margin-bottom: 3px;
}

.apl-item span {
    font-size: 13px;
    color: var(--text-3);
}

/* ===== Contact ===== */
.contact-section { background: var(--bg-2); }

.contact-panel {
    position: relative;
    border-radius: 24px;
    border: 1px solid var(--border-light);
    background: linear-gradient(135deg, rgba(22, 119, 255, 0.06) 0%, rgba(15, 23, 41, 0.6) 100%);
    overflow: hidden;
}

.contact-panel-glow {
    position: absolute;
    width: 500px;
    height: 500px;
    background: rgba(22, 119, 255, 0.1);
    border-radius: 50%;
    filter: blur(100px);
    top: -200px;
    right: -100px;
    pointer-events: none;
}

.contact-panel-inner {
    position: relative;
    z-index: 1;
    display: grid;
    grid-template-columns: 1fr 1.6fr;
    gap: 56px;
    padding: 64px 56px;
    align-items: center;
}

.contact-intro .section-eyebrow { margin-bottom: 12px; }

.contact-title {
    font-size: clamp(32px, 4vw, 44px);
    font-weight: 800;
    letter-spacing: -0.02em;
    margin-bottom: 16px;
}

.contact-lead {
    font-size: 16px;
    color: var(--text-2);
    line-height: 1.8;
    margin-bottom: 32px;
}

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

.contact-item {
    display: flex;
    flex-direction: column;
    gap: 6px;
    padding: 28px 24px;
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    text-decoration: none;
    color: inherit;
    transition: all 0.3s ease;
}

a.contact-item:hover {
    border-color: rgba(22, 119, 255, 0.35);
    background: rgba(22, 119, 255, 0.06);
    transform: translateY(-3px);
    box-shadow: 0 12px 40px rgba(0, 0, 0, 0.25);
}

.contact-item-primary {
    grid-column: span 2;
    border-color: rgba(22, 119, 255, 0.25);
    background: linear-gradient(135deg, rgba(22, 119, 255, 0.1) 0%, rgba(37, 99, 235, 0.05) 100%);
}

a.contact-item-primary:hover {
    border-color: rgba(22, 119, 255, 0.45);
    background: linear-gradient(135deg, rgba(22, 119, 255, 0.14) 0%, rgba(37, 99, 235, 0.08) 100%);
}

.contact-item-static { cursor: default; }

.contact-item-icon {
    width: 44px;
    height: 44px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(22, 119, 255, 0.12);
    border-radius: 11px;
    color: var(--blue-light);
    margin-bottom: 8px;
}

.contact-item-icon svg { width: 22px; height: 22px; }

.contact-item-label {
    font-size: 12px;
    font-weight: 600;
    letter-spacing: 0.06em;
    text-transform: uppercase;
    color: var(--text-3);
}

.contact-item-value {
    font-size: 18px;
    font-weight: 700;
    color: var(--text);
}

a.contact-item:hover .contact-item-value { color: var(--blue-light); }

.contact-item-hint {
    font-size: 13px;
    color: var(--text-3);
    margin-top: 2px;
}

/* ===== Footer ===== */
.footer {
    padding: 64px 0 32px;
    background: var(--bg);
    border-top: 1px solid var(--border);
}

.footer-main {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr;
    gap: 48px;
    margin-bottom: 48px;
}

.footer-about {
    font-size: 14px;
    color: var(--text-3);
    line-height: 1.7;
    margin-bottom: 20px;
    max-width: 360px;
}

.footer-cta {
    padding: 11px 24px;
    font-size: 14px;
}

.footer-contact h4,
.footer-nav-group h4 {
    font-size: 13px;
    font-weight: 700;
    color: var(--text);
    margin-bottom: 16px;
    letter-spacing: 0.04em;
}

.footer-contact ul {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.footer-contact li {
    display: flex;
    flex-direction: column;
    gap: 2px;
}

.fc-label {
    font-size: 11px;
    font-weight: 600;
    letter-spacing: 0.06em;
    text-transform: uppercase;
    color: var(--text-3);
}

.footer-contact a {
    color: var(--text-2);
    text-decoration: none;
    font-size: 15px;
    font-weight: 500;
}

.footer-contact a:hover { color: var(--blue-light); }

.footer-contact li span:not(.fc-label) {
    font-size: 15px;
    color: var(--text-2);
}

.footer-brand {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 18px;
    font-weight: 700;
    margin-bottom: 12px;
    flex-wrap: wrap;
}

.footer-brand-icon {
    width: 30px;
    height: 30px;
    border-radius: 8px;
    object-fit: cover;
    flex-shrink: 0;
    box-shadow: 0 4px 12px rgba(22, 119, 255, 0.18);
}

.footer-slogan {
    font-size: 14px;
    color: var(--text-3);
    margin-bottom: 16px;
}

.footer-platform-link {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    font-size: 14px;
    font-weight: 600;
    color: var(--blue-light) !important;
    text-decoration: none;
}

.footer-platform-link:hover { text-decoration: underline; }

.footer-nav-group {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.footer-nav-group a {
    font-size: 14px;
    color: var(--text-3);
    text-decoration: none;
    transition: color 0.2s;
}

.footer-nav-group a:hover { color: var(--blue-light); }

.footer-bottom {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 12px;
    flex-wrap: wrap;
    padding-top: 28px;
    border-top: 1px solid var(--border);
    font-size: 13px;
    color: var(--text-3);
}

.footer-bottom a { color: var(--text-3); text-decoration: none; }
.footer-bottom a:hover { color: var(--blue-light); }
.footer-beian {
    display: inline-flex;
    align-items: center;
    gap: 4px;
}
.footer-beian img {
    display: block;
    flex-shrink: 0;
}
.footer-sep { opacity: 0.4; }

/* ===== Animations (scroll reveal) ===== */
.reveal {
    opacity: 0;
    transform: translateY(28px);
    transition: opacity 0.65s ease, transform 0.65s ease;
}

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

/* ===== Responsive ===== */
@media (max-width: 1100px) {
    .hero-layout { grid-template-columns: 1fr; text-align: center; }
    .hero-desc { margin: 0 auto; }
    .hero-actions, .hero-meta, .hero-pills { justify-content: center; }
    .hero-visual { display: none; }

    .arch-diagram {
        grid-template-columns: 1fr;
        gap: 16px;
    }

    .arch-connector {
        flex-direction: row;
        padding: 8px 0;
    }

    .arch-line { width: auto; height: 2px; flex: 1; min-height: unset; }
    .arch-payload { writing-mode: horizontal-tb; }

    .cap-grid { grid-template-columns: 1fr; }
    .cap-grid-more { grid-template-columns: 1fr 1fr; }
    .industry-grid { grid-template-columns: repeat(3, 1fr); }
    .about-layout { grid-template-columns: 1fr; }
    .footer-main { grid-template-columns: 1fr; gap: 32px; }
    .workflow-inline { flex-direction: column; gap: 8px; }
    .wf-inline-arrow { display: none; }
}

@media (max-width: 768px) {
    .contact-grid { grid-template-columns: 1fr; }
    .contact-item-primary { grid-column: span 1; }

    .stats-grid { grid-template-columns: repeat(2, 1fr); }
    .concept-grid { grid-template-columns: 1fr; }
    .cap-grid { grid-template-columns: 1fr; }
    .industry-grid { grid-template-columns: repeat(2, 1fr); }
    .workflow-steps { grid-template-columns: 1fr; }
    .contact-panel-inner {
        grid-template-columns: 1fr;
        padding: 48px 28px;
        gap: 40px;
        text-align: center;
    }

    .contact-intro .btn { width: 100%; max-width: 320px; margin: 0 auto; }
    .cta-panel { padding: 48px 28px; }
    .footer-main { grid-template-columns: 1fr; gap: 32px; }
    .section { padding: 80px 0; }
}

@media (max-width: 480px) {
    .theme-toggle { top: 14px; right: 14px; width: 40px; height: 40px; }
    .stats-grid { grid-template-columns: 1fr 1fr; }
    .cap-grid-more { grid-template-columns: 1fr; }
    .hero-actions { flex-direction: column; align-items: stretch; }
    .btn-xl { width: 100%; }
}