/* ============================================================
   CSS Variables & Reset
   ============================================================ */
:root {
    --primary: #0A2E4A;
    --primary-light: #1A4A6A;
    --primary-dark: #061E30;
    --gold: #D4A847;
    --gold-light: #E8C86A;
    --cream: #F5F2EB;
    --bg-light: #F8F9FA;
    --text-dark: #1E2A2E;
    --text-gray: #4A5A62;
    --text-light: #8A9BA5;
    --shadow: 0 10px 40px rgba(10, 46, 74, 0.08);
    --shadow-lg: 0 20px 60px rgba(10, 46, 74, 0.12);
    --radius: 20px;
    --radius-sm: 12px;
    --radius-xs: 8px;
    --transition: 0.3s cubic-bezier(0.25, 0.46, 0.45, 0.94);
    --container-max: 1280px;
    --header-height: 64px;
}
* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: var(--header-height); }
body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Noto Sans SC', 'PingFang SC', 'Microsoft YaHei', sans-serif;
    background: #fff;
    color: var(--text-dark);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}
.container { max-width: var(--container-max); margin: 0 auto; padding: 0 24px; }
a { text-decoration: none; color: inherit; }
img { max-width: 100%; height: auto; }
ul { list-style: none; }

/* ============================================================
   Typography
   ============================================================ */
.text-center { text-align: center; }
.text-muted { color: var(--text-light); }
.text-small { font-size: 0.85rem; }
.text-gold { color: var(--gold); }
.text-primary { color: var(--primary); }
.mt-1 { margin-top: 5px; }
.mt-2 { margin-top: 10px; }
.mt-3 { margin-top: 20px; }
.mt-4 { margin-top: 30px; }
.mb-1 { margin-bottom: 6px; }
.mb-2 { margin-bottom: 12px; }
.mb-3 { margin-bottom: 20px; }
.gap-1 { gap: 6px; }
.gap-2 { gap: 12px; }
.gap-3 { gap: 20px; }
.flex { display: flex; }
.flex-wrap { flex-wrap: wrap; }
.flex-center { display: flex; align-items: center; justify-content: center; }
.flex-between { display: flex; align-items: center; justify-content: space-between; }
.flex-col { flex-direction: column; }
.items-center { align-items: center; }
.w-full { width: 100%; }

/* ============================================================
   Buttons
   ============================================================ */
.btn-primary {
    display: inline-flex; align-items: center; gap: 6px;
    background: var(--primary); color: #fff;
    padding: 12px 32px; border-radius: 50px;
    font-weight: 600; font-size: 1rem;
    border: none; cursor: pointer;
    transition: var(--transition);
    box-shadow: 0 4px 12px rgba(10, 46, 74, 0.3);
    text-align: center;
}
.btn-primary:hover {
    background: var(--primary-light);
    transform: translateY(-2px);
    box-shadow: 0 8px 24px rgba(10, 46, 74, 0.4);
}
.btn-outline {
    display: inline-flex; align-items: center; gap: 6px;
    background: transparent; color: var(--primary);
    padding: 12px 32px; border-radius: 50px;
    font-weight: 600; border: 2px solid var(--primary);
    transition: var(--transition); cursor: pointer;
    text-align: center;
}
.btn-outline:hover { background: var(--primary); color: #fff; }
.btn-ghost {
    display: inline-flex; align-items: center; gap: 6px;
    background: rgba(10, 46, 74, 0.06); color: var(--primary);
    padding: 10px 24px; border-radius: 50px;
    font-weight: 500; border: none;
    transition: var(--transition); cursor: pointer;
}
.btn-ghost:hover { background: rgba(10, 46, 74, 0.12); }
.btn-sm { padding: 6px 18px; font-size: 0.85rem; }
.btn-lg { padding: 14px 40px; font-size: 1.1rem; }
.btn-icon {
    background: none; border: none;
    cursor: pointer; font-size: 1.1rem;
    color: var(--text-light); transition: var(--transition);
}
.btn-icon:hover { color: var(--primary); }

/* ============================================================
   Help Tooltip / Popover
   ============================================================ */
.help-trigger {
    display: inline-flex; align-items: center; justify-content: center;
    width: 22px; height: 22px; border-radius: 50%;
    background: var(--gold); color: #fff;
    font-size: 0.7rem; font-weight: 700;
    border: none; cursor: pointer; transition: var(--transition);
    margin-left: 6px; vertical-align: middle; flex-shrink: 0;
}
.help-trigger:hover { background: var(--primary); transform: scale(1.1); }
.help-tip { position: relative; display: inline-block; }
.help-tip .help-popover {
    display: none; position: absolute;
    bottom: calc(100% + 10px); left: 50%;
    transform: translateX(-50%);
    background: var(--primary-dark); color: #fff;
    padding: 12px 16px; border-radius: var(--radius-sm);
    font-size: 0.85rem; font-weight: 400;
    line-height: 1.5; min-width: 220px; max-width: 320px;
    box-shadow: 0 8px 30px rgba(0,0,0,0.2);
    z-index: 100; text-align: left;
    pointer-events: none;
}
.help-tip .help-popover::after {
    content: ''; position: absolute; top: 100%; left: 50%;
    transform: translateX(-50%);
    border: 8px solid transparent;
    border-top-color: var(--primary-dark);
}
.help-tip:hover .help-popover { display: block; }
.help-tip.touch .help-popover { display: block; pointer-events: auto; }

/* ============================================================
   Help Inline Block
   ============================================================ */
.help-block {
    background: var(--cream);
    border-left: 4px solid var(--gold);
    padding: 16px 20px;
    border-radius: var(--radius-xs);
    font-size: 0.9rem;
    color: var(--text-gray);
    line-height: 1.7;
    margin: 16px 0;
}
.help-block i { color: var(--gold); margin-right: 8px; }
.help-block strong { color: var(--primary); }

/* ============================================================
   Section Common
   ============================================================ */
section { padding: 70px 0; }
.section-header {
    text-align: center;
    max-width: 800px;
    margin: 0 auto 36px;
}
.section-header h2 {
    font-size: clamp(1.6rem, 2.6vw, 2.4rem);
    font-weight: 700;
    margin-bottom: 10px;
    display: flex; align-items: center;
    justify-content: center; gap: 10px;
    flex-wrap: wrap;
}
.section-header h2 span { color: var(--primary); }
.section-header .subtitle {
    color: var(--text-gray);
    font-size: clamp(0.9rem, 1.05vw, 1.05rem);
    line-height: 1.7;
}
.section-bg-alt { background: var(--cream); }
.section-bg-white { background: #fff; }
.section-bg-light { background: var(--bg-light); }

/* ============================================================
   Header / Navigation
   ============================================================ */
.header {
    position: fixed; top: 0; left: 0; right: 0;
    z-index: 1000;
    background: rgba(255,255,255,0.95);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border-bottom: 1px solid rgba(10, 46, 74, 0.08);
    transition: var(--transition);
    height: var(--header-height);
}
.header .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 100%;
}
.logo {
    display: flex; align-items: center; gap: 8px;
    font-size: 1.4rem; font-weight: 700; color: var(--primary);
    flex-shrink: 0;
}
.logo .gold { color: var(--gold); }
.logo i { font-size: 1.6rem; color: var(--gold); }
.logo .badge {
    font-size: 0.6rem; font-weight: 400;
    color: var(--text-light);
    background: var(--cream);
    padding: 2px 10px; border-radius: 20px;
    margin-left: 4px; letter-spacing: 0.5px;
    white-space: nowrap;
}
.nav-links {
    display: flex; gap: 6px;
    font-weight: 500;
    color: var(--text-gray);
    align-items: center;
}
.nav-links a {
    padding: 6px 14px;
    border-radius: 30px;
    transition: var(--transition);
    font-size: 0.88rem;
    white-space: nowrap;
}
.nav-links a:hover, .nav-links a.active {
    color: var(--primary);
    background: rgba(10, 46, 74, 0.06);
}
.header-actions {
    display: flex; gap: 8px;
    align-items: center; flex-shrink: 0;
}
.header-actions .btn-primary { padding: 6px 18px; font-size: 0.82rem; }
.header-actions .btn-outline { padding: 6px 18px; font-size: 0.82rem; border-width: 1.5px; }
.menu-toggle {
    display: none;
    background: none; border: none;
    font-size: 1.5rem; color: var(--primary);
    cursor: pointer; padding: 4px 8px;
}

/* ============================================================
   Hero / National Dashboard
   ============================================================ */
.hero {
    padding: calc(var(--header-height) + 30px) 0 50px;
    background: linear-gradient(165deg, #E8EDF2 0%, #D0DCE8 100%);
    position: relative; overflow: hidden;
}
.hero::before {
    content: ''; position: absolute;
    right: -80px; top: -80px;
    width: 500px; height: 500px;
    background: radial-gradient(circle, rgba(212,168,71,0.06) 0%, transparent 70%);
    pointer-events: none;
}
.hero .container { display: flex; flex-direction: column; gap: 24px; }
.hero-top {
    display: flex; align-items: flex-start;
    justify-content: space-between;
    flex-wrap: wrap; gap: 16px;
}
.hero-badge {
    display: inline-flex; align-items: center; gap: 6px;
    background: var(--primary); color: #fff;
    padding: 6px 20px; border-radius: 50px;
    font-size: 0.78rem; font-weight: 600;
    letter-spacing: 0.5px;
}
.hero-title {
    font-size: clamp(2rem, 4vw, 3.6rem);
    font-weight: 800; line-height: 1.1;
    color: var(--text-dark);
}
.hero-title .gold { color: var(--gold); }
.hero-title .primary { color: var(--primary); }
.hero-sub {
    font-size: clamp(0.95rem, 1.15vw, 1.15rem);
    color: var(--text-gray);
    max-width: 700px; margin-top: 10px;
    line-height: 1.7;
}

/* AI Query Bar */
.ai-query-wrapper {
    background: #fff;
    border-radius: 60px;
    box-shadow: 0 8px 30px rgba(10, 46, 74, 0.12);
    padding: 6px 6px 6px 24px;
    display: flex; align-items: center;
    gap: 12px;
    max-width: 800px; width: 100%;
    margin: 8px 0;
    border: 1px solid rgba(10, 46, 74, 0.06);
}
.ai-query-wrapper i.ai-icon { color: var(--gold); font-size: 1.2rem; }
.ai-query-wrapper input {
    flex: 1; border: none; outline: none;
    font-size: 0.95rem; padding: 10px 0;
    background: transparent; color: var(--text-dark);
    min-width: 100px;
}
.ai-query-wrapper input::placeholder { color: var(--text-light); }
.ai-query-wrapper .btn-primary {
    border-radius: 40px;
    padding: 10px 24px;
    font-size: 0.9rem;
    white-space: nowrap;
}
.ai-examples {
    display: flex; gap: 8px;
    flex-wrap: wrap;
    font-size: 0.82rem;
    color: var(--text-light);
}
.ai-examples .example {
    background: rgba(10, 46, 74, 0.06);
    padding: 3px 14px; border-radius: 30px;
    cursor: pointer; transition: var(--transition);
    color: var(--text-gray);
}
.ai-examples .example:hover {
    background: var(--gold); color: #fff;
}

/* Stats Grid */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
    gap: 14px;
    background: rgba(255,255,255,0.75);
    backdrop-filter: blur(8px);
    border-radius: var(--radius);
    padding: 20px 24px;
    border: 1px solid rgba(255,255,255,0.8);
}
.stat-item { text-align: center; }
.stat-item .number {
    font-size: 1.8rem;
    font-weight: 700;
    color: var(--primary);
    display: block;
    line-height: 1.2;
}
.stat-item .label {
    font-size: 0.78rem;
    color: var(--text-light);
    margin-top: 2px;
}
.stat-item .change {
    font-size: 0.68rem;
    color: #2e7d32;
    background: #e8f5e9;
    padding: 0 8px;
    border-radius: 12px;
    display: inline-block;
    margin-top: 3px;
}

/* Realtime Ticker */
.realtime-ticker {
    background: rgba(10, 46, 74, 0.05);
    border-radius: var(--radius-sm);
    padding: 10px 18px;
    display: flex; align-items: center;
    gap: 16px; flex-wrap: wrap;
    border-left: 4px solid var(--gold);
}
.realtime-ticker .label {
    font-weight: 600; color: var(--primary);
    white-space: nowrap; font-size: 0.9rem;
}
.realtime-ticker .items {
    display: flex; gap: 20px;
    flex-wrap: wrap; flex: 1;
}
.realtime-ticker .items span {
    font-size: 0.85rem;
    color: var(--text-gray);
}
.realtime-ticker .items i { color: var(--gold); margin-right: 4px; }

/* ============================================================
   National Industry Map
   ============================================================ */
.map-container {
    display: flex; flex-wrap: wrap;
    gap: 30px; align-items: stretch;
}
.map-grid-wrapper {
    flex: 2; min-width: 300px;
    background: #fff;
    border-radius: var(--radius);
    padding: 24px;
    box-shadow: var(--shadow);
}
.map-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(105px, 1fr));
    gap: 10px;
}
.region-node {
    background: var(--cream);
    padding: 10px 6px;
    border-radius: var(--radius-sm);
    text-align: center;
    cursor: pointer;
    transition: var(--transition);
    border: 2px solid transparent;
    font-size: 0.82rem;
    font-weight: 500;
}
.region-node:hover {
    border-color: var(--gold);
    background: #fff;
    transform: scale(1.03);
    box-shadow: 0 4px 12px rgba(212,168,71,0.2);
}
.region-node .code {
    display: block;
    font-size: 0.55rem;
    color: var(--text-light);
    font-weight: 400;
    margin-top: 2px;
}
.region-node .badge {
    display: inline-block;
    background: var(--gold);
    color: #fff;
    font-size: 0.5rem;
    padding: 0 6px;
    border-radius: 10px;
    margin-top: 3px;
}
.region-node .status-dot {
    display: inline-block;
    width: 6px; height: 6px;
    border-radius: 50%;
    margin-right: 3px;
}
.region-node .status-dot.active { background: #2e7d32; }
.region-node .status-dot.building { background: var(--gold); }
.region-node .status-dot.pending { background: var(--text-light); }
.map-info-panel {
    flex: 1.2; min-width: 260px;
    background: #fff;
    border-radius: var(--radius);
    padding: 28px 24px;
    box-shadow: var(--shadow);
    position: relative;
    overflow: hidden;
}
.map-info-panel::before {
    content: '';
    position: absolute; top: 0; left: 0;
    width: 4px; height: 100%;
    background: var(--gold);
}
.map-info-panel h3 {
    color: var(--primary);
    font-size: 1.2rem;
    margin-bottom: 14px;
    display: flex; align-items: center; gap: 8px;
}
.map-info-panel .detail p {
    margin: 6px 0;
    font-size: 0.92rem;
    color: var(--text-gray);
}
.map-info-panel .detail .highlight {
    color: var(--primary);
    font-weight: 600;
}
.map-info-panel .trend {
    margin-top: 14px;
    font-size: 0.85rem;
    color: var(--text-gray);
    padding-top: 14px;
    border-top: 1px solid #eee;
}

/* ============================================================
   Industry Tags / Categories
   ============================================================ */
.industry-tags {
    display: flex; flex-wrap: wrap;
    gap: 10px; justify-content: center;
}
.industry-tag {
    background: #fff;
    border: 1px solid #e0e6eb;
    padding: 8px 16px;
    border-radius: 30px;
    font-size: 0.85rem;
    font-weight: 500;
    color: var(--text-gray);
    cursor: pointer;
    transition: var(--transition);
    position: relative;
}
.industry-tag:hover {
    border-color: var(--gold);
    background: var(--cream);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0,0,0,0.06);
}
.industry-tag .tag-code {
    font-size: 0.6rem;
    color: var(--text-light);
    font-weight: 400;
}
.industry-tag .tag-status {
    font-size: 0.55rem;
    color: #2e7d32;
    display: block;
}
.industry-tag.active {
    background: var(--primary);
    color: #fff;
    border-color: var(--primary);
}
.industry-tag.active .tag-code,
.industry-tag.active .tag-status { color: rgba(255,255,255,0.7); }

/* Industry Detail Panel */
.industry-detail-panel {
    display: none;
    margin-top: 24px;
    background: #fff;
    border-radius: var(--radius);
    padding: 28px 24px;
    box-shadow: var(--shadow);
    border-left: 4px solid var(--gold);
}
.industry-detail-panel.open { display: block; }
.industry-detail-panel h3 {
    color: var(--primary);
    font-size: 1.2rem;
    margin-bottom: 12px;
}
.industry-chain {
    display: flex; flex-wrap: wrap;
    gap: 16px; margin: 16px 0;
}
.chain-node {
    flex: 1; min-width: 180px;
    background: var(--cream);
    padding: 16px;
    border-radius: var(--radius-sm);
    text-align: center;
}
.chain-node .chain-label {
    font-size: 0.75rem;
    color: var(--text-light);
    text-transform: uppercase;
    letter-spacing: 1px;
}
.chain-node .chain-value {
    font-size: 0.95rem;
    font-weight: 500;
    margin-top: 4px;
    color: var(--primary);
}

/* ============================================================
   Supply/Demand Hall
   ============================================================ */
.supply-filters {
    display: flex; gap: 10px;
    flex-wrap: wrap; margin-bottom: 20px;
    align-items: center;
}
.supply-filters select, .supply-filters input {
    padding: 8px 16px;
    border-radius: 30px;
    border: 1px solid #dce4e0;
    font-size: 0.88rem;
    background: #fff;
    outline: none;
    transition: var(--transition);
}
.supply-filters select:focus, .supply-filters input:focus {
    border-color: var(--gold);
    box-shadow: 0 0 0 3px rgba(212,168,71,0.1);
}
.supply-list {
    display: flex; flex-direction: column;
    gap: 10px;
}
.supply-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 14px 20px;
    background: var(--cream);
    border-radius: var(--radius-sm);
    border-left: 4px solid var(--gold);
    flex-wrap: wrap; gap: 10px;
    transition: var(--transition);
    cursor: pointer;
}
.supply-item:hover { background: #e8f0ed; }
.supply-item .info {
    display: flex; gap: 12px;
    align-items: center; flex-wrap: wrap;
}
.supply-item .info .type-badge {
    font-weight: 600;
    padding: 2px 14px;
    border-radius: 20px;
    font-size: 0.72rem;
    white-space: nowrap;
}
.type-badge.supply { background: rgba(10, 46, 74, 0.12); color: var(--primary); }
.type-badge.demand { background: rgba(212, 168, 71, 0.2); color: #A07D2E; }
.supply-item .date { color: var(--text-light); font-size: 0.78rem; }
.supply-item .city-tag {
    background: rgba(10, 46, 74, 0.06);
    padding: 2px 12px;
    border-radius: 20px;
    font-size: 0.75rem;
    color: var(--text-gray);
}
.supply-item .match-badge {
    font-size: 0.68rem;
    padding: 2px 10px;
    border-radius: 12px;
}
.match-badge.pending { background: #fff3e0; color: #e65100; }
.match-badge.matching { background: #e3f2fd; color: #1565c0; }
.match-badge.matched { background: #e8f5e9; color: #2e7d32; }

/* ============================================================
   Enterprise Services Grid
   ============================================================ */
.service-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 24px;
}
.service-card {
    background: #fff;
    padding: 30px 24px;
    border-radius: var(--radius);
    text-align: center;
    box-shadow: var(--shadow);
    transition: var(--transition);
    border: 1px solid transparent;
}
.service-card:hover {
    border-color: var(--gold);
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
}
.service-card .icon-wrap {
    width: 60px; height: 60px;
    border-radius: 16px;
    background: var(--cream);
    display: flex; align-items: center; justify-content: center;
    margin: 0 auto 14px;
}
.service-card .icon-wrap i { font-size: 1.6rem; color: var(--primary); }
.service-card h4 { font-size: 1.05rem; margin-bottom: 6px; }
.service-card p { font-size: 0.88rem; color: var(--text-gray); line-height: 1.6; }

/* ============================================================
   Agent / AI Section
   ============================================================ */
.agent-showcase {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 20px;
    margin-top: 20px;
}
.agent-card {
    background: #fff;
    border-radius: var(--radius);
    padding: 24px;
    box-shadow: var(--shadow);
    border: 1px solid #eee;
    transition: var(--transition);
}
.agent-card:hover {
    border-color: var(--gold);
    transform: translateY(-2px);
}
.agent-card .agent-header {
    display: flex; align-items: center;
    gap: 12px; margin-bottom: 10px;
}
.agent-card .agent-header .avatar {
    width: 44px; height: 44px;
    border-radius: 12px;
    display: flex; align-items: center; justify-content: center;
    font-size: 1.3rem;
}
.agent-card .agent-header h4 { font-size: 1rem; }
.agent-card .agent-level {
    font-size: 0.7rem;
    color: var(--text-light);
    background: var(--cream);
    padding: 1px 8px;
    border-radius: 10px;
    display: inline-block;
    margin-left: 4px;
}
.agent-card p { font-size: 0.88rem; color: var(--text-gray); }

/* ============================================================
   MA Code / Architecture Section
   ============================================================ */
.code-structure {
    display: flex; flex-direction: column;
    align-items: center; gap: 4px;
    padding: 20px;
    background: var(--primary-dark);
    border-radius: var(--radius);
    color: #fff;
    font-family: 'SF Mono', 'Fira Code', 'Consolas', monospace;
    font-size: clamp(0.75rem, 1.1vw, 0.95rem);
    overflow-x: auto;
}
.code-structure .segment { display: flex; flex-wrap: wrap; justify-content: center; gap: 2px; }
.code-structure .segment span {
    padding: 4px 10px;
    border-radius: 6px;
    cursor: help;
    transition: var(--transition);
}
.code-structure .segment span:hover { opacity: 0.8; transform: translateY(-1px); }
.code-structure .legend {
    display: flex; flex-wrap: wrap;
    gap: 12px; margin-top: 12px;
    font-family: 'Inter', sans-serif;
    font-size: 0.78rem;
    justify-content: center;
}
.code-structure .legend span { display: flex; align-items: center; gap: 4px; }
.arch-tree {
    display: flex; flex-direction: column;
    align-items: center; gap: 8px;
    padding: 24px;
    font-size: 0.9rem;
}
.arch-tree .node {
    background: #fff;
    border: 2px solid var(--primary);
    border-radius: var(--radius-sm);
    padding: 10px 24px;
    text-align: center;
    font-weight: 500;
    color: var(--primary);
    min-width: 180px;
}
.arch-tree .node.gold {
    border-color: var(--gold);
    color: var(--gold);
    background: var(--primary-dark);
}
.arch-tree .node.sub { min-width: 140px; font-size: 0.85rem; }
.arch-tree .connector {
    width: 2px; height: 20px;
    background: var(--text-light);
}
.arch-tree .connector-h {
    height: 2px; width: 40px;
    background: var(--text-light);
}
.arch-tree .branch {
    display: flex; gap: 40px;
    justify-content: center; flex-wrap: wrap;
}

/* ============================================================
   Traceability Section
   ============================================================ */
.trace-steps {
    display: flex; flex-wrap: wrap;
    gap: 16px; justify-content: center;
    margin: 20px 0;
}
.trace-step {
    flex: 1; min-width: 160px;
    text-align: center;
    padding: 20px 16px;
    background: #fff;
    border-radius: var(--radius-sm);
    box-shadow: var(--shadow);
    position: relative;
}
.trace-step .step-num {
    width: 32px; height: 32px;
    border-radius: 50%;
    background: var(--gold);
    color: #fff;
    display: flex; align-items: center; justify-content: center;
    margin: 0 auto 10px;
    font-weight: 700; font-size: 0.9rem;
}
.trace-step h4 { font-size: 0.95rem; margin-bottom: 4px; }
.trace-step p { font-size: 0.82rem; color: var(--text-gray); }
.trace-step .step-arrow {
    position: absolute;
    right: -16px; top: 50%;
    transform: translateY(-50%);
    color: var(--gold);
    font-size: 1.2rem;
}

/* ============================================================
   Data Dashboard Section
   ============================================================ */
.dashboard-cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 20px;
}
.dashboard-card {
    background: #fff;
    border-radius: var(--radius);
    padding: 24px;
    box-shadow: var(--shadow);
    border-top: 4px solid var(--gold);
}
.dashboard-card h4 {
    font-size: 1rem;
    color: var(--primary);
    margin-bottom: 8px;
}
.dashboard-card p { font-size: 0.88rem; color: var(--text-gray); }
.dashboard-card .metric {
    font-size: 2rem;
    font-weight: 700;
    color: var(--primary);
    margin: 8px 0;
}

/* ============================================================
   Enterprise Onboarding Flow
   ============================================================ */
.onboarding-flow {
    display: flex; flex-wrap: wrap;
    gap: 12px; justify-content: center;
    margin: 24px 0;
}
.onboarding-step {
    display: flex; align-items: center;
    gap: 10px; background: #fff;
    padding: 12px 20px;
    border-radius: 50px;
    box-shadow: 0 2px 8px rgba(0,0,0,0.04);
    border: 1px solid #eee;
}
.onboarding-step .step-icon {
    width: 36px; height: 36px;
    border-radius: 50%;
    background: var(--cream);
    display: flex; align-items: center; justify-content: center;
    color: var(--gold);
    flex-shrink: 0;
}
.onboarding-step .step-text { font-size: 0.85rem; font-weight: 500; }
.onboarding-step .step-arrow { color: var(--gold); }
.scenario-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 16px;
    margin-top: 20px;
}
.scenario-card {
    background: #fff;
    border-radius: var(--radius-sm);
    padding: 20px;
    text-align: center;
    box-shadow: var(--shadow);
    transition: var(--transition);
}
.scenario-card:hover { transform: translateY(-2px); }
.scenario-card i { font-size: 1.8rem; color: var(--primary); margin-bottom: 10px; }
.scenario-card h4 { font-size: 0.95rem; }

/* ============================================================
   Value Comparison Table
   ============================================================ */
.value-table {
    width: 100%;
    border-collapse: collapse;
    background: #fff;
    border-radius: var(--radius);
    overflow: hidden;
    box-shadow: var(--shadow);
    margin: 20px 0;
}
.value-table th {
    background: var(--primary);
    color: #fff;
    padding: 14px 18px;
    font-size: 0.9rem;
    text-align: left;
    font-weight: 600;
}
.value-table td {
    padding: 12px 18px;
    font-size: 0.88rem;
    color: var(--text-gray);
    border-bottom: 1px solid #f0f0f0;
}
.value-table tr:last-child td { border-bottom: none; }
.value-table tr:hover td { background: var(--cream); }

/* ============================================================
   Footer
   ============================================================ */
.footer {
    background: var(--primary-dark);
    color: rgba(255,255,255,0.8);
    padding: 50px 0 28px;
}
.footer .footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr 1.5fr;
    gap: 32px;
}
.footer .brand-name { font-size: 1.5rem; font-weight: 700; color: #fff; }
.footer .brand-name .gold { color: var(--gold); }
.footer .brand-desc {
    font-size: 0.88rem;
    line-height: 1.8;
    margin-top: 10px;
    max-width: 300px;
}
.footer h4 { color: #fff; margin-bottom: 14px; font-size: 1rem; }
.footer ul li { margin-bottom: 7px; }
.footer ul li a { transition: var(--transition); font-size: 0.88rem; }
.footer ul li a:hover { color: var(--gold); }
.footer .bottom-bar {
    grid-column: 1 / -1;
    border-top: 1px solid rgba(255,255,255,0.08);
    padding-top: 20px;
    margin-top: 20px;
    text-align: center;
    font-size: 0.8rem;
    display: flex;
    justify-content: center;
    gap: 20px;
    flex-wrap: wrap;
}
.footer .bottom-bar a { color: var(--gold); }
.footer .social-links { display: flex; gap: 12px; margin-top: 12px; }
.footer .social-links a {
    width: 36px; height: 36px;
    border-radius: 50%;
    background: rgba(255,255,255,0.08);
    display: flex; align-items: center; justify-content: center;
    transition: var(--transition);
}
.footer .social-links a:hover { background: var(--gold); color: var(--primary-dark); }
.footer details > summary { list-style: none; display: flex; align-items: center; gap: 4px; }
.footer details > summary::-webkit-details-marker { display: none; }
.footer details > summary:hover { color: var(--gold); }
.footer details[open] > summary i.fa-chevron-down { transform: rotate(180deg); }
.footer details > summary i.fa-chevron-down { transition: transform 0.3s ease; font-size: 0.6rem; margin-left: 4px; }
.footer details ul li a { font-size: 0.82rem; opacity: 0.85; }

/* ============================================================
   Help Modal
   ============================================================ */
.modal-overlay {
    display: none;
    position: fixed; inset: 0;
    background: rgba(0,0,0,0.45);
    backdrop-filter: blur(4px);
    -webkit-backdrop-filter: blur(4px);
    z-index: 9999;
    justify-content: center;
    align-items: center;
    padding: 20px;
}
.modal-overlay.open { display: flex; }
.modal-content {
    background: #fff;
    border-radius: var(--radius);
    max-width: 600px;
    width: 100%;
    padding: 32px 28px 28px;
    box-shadow: 0 30px 80px rgba(0,0,0,0.25);
    max-height: 85vh;
    overflow-y: auto;
    animation: modalIn 0.3s ease;
}
@keyframes modalIn {
    from { opacity: 0; transform: scale(0.94) translateY(20px); }
    to { opacity: 1; transform: scale(1) translateY(0); }
}
.modal-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: 20px;
}
.modal-header h2 {
    font-size: 1.3rem;
    display: flex;
    align-items: center;
    gap: 10px;
    color: var(--primary);
}
.modal-header .close-btn {
    background: none; border: none;
    font-size: 1.8rem;
    cursor: pointer;
    color: var(--text-light);
    transition: var(--transition);
    line-height: 1;
}
.modal-header .close-btn:hover {
    color: var(--text-dark);
    transform: rotate(90deg);
}
.modal-section { margin-bottom: 18px; }
.modal-section h3 {
    font-size: 0.95rem;
    color: var(--primary);
    margin-bottom: 4px;
    display: flex;
    align-items: center;
    gap: 8px;
}
.modal-section p {
    font-size: 0.88rem;
    color: var(--text-gray);
    line-height: 1.7;
}
.modal-footer {
    margin-top: 24px;
    padding-top: 16px;
    border-top: 1px solid #E8ECEA;
    display: flex;
    gap: 10px;
    justify-content: flex-end;
}

/* Floating Help Button */
.global-help-btn {
    position: fixed;
    bottom: 28px; right: 28px;
    z-index: 500;
    width: 56px; height: 56px;
    border-radius: 50%;
    background: var(--primary);
    color: #fff;
    border: none;
    box-shadow: 0 8px 30px rgba(10, 46, 74, 0.35);
    font-size: 1.5rem;
    cursor: pointer;
    transition: var(--transition);
    display: flex;
    align-items: center;
    justify-content: center;
}
.global-help-btn:hover { transform: scale(1.08); background: var(--primary-light); }

/* Back to Top */
.back-to-top {
    position: fixed;
    bottom: 90px; right: 28px;
    z-index: 500;
    width: 44px; height: 44px;
    border-radius: 50%;
    background: rgba(10,46,74,0.8);
    color: #fff;
    border: none;
    font-size: 1.2rem;
    cursor: pointer;
    transition: var(--transition);
    display: none;
    align-items: center;
    justify-content: center;
    backdrop-filter: blur(4px);
}
.back-to-top.visible { display: flex; }
.back-to-top:hover { background: var(--primary); transform: translateY(-2px); }

/* ============================================================
   Toast Notification
   ============================================================ */
.toast-container {
    position: fixed;
    top: 80px; right: 24px;
    z-index: 9998;
    display: flex;
    flex-direction: column;
    gap: 8px;
}
.toast {
    background: var(--primary-dark);
    color: #fff;
    padding: 14px 20px;
    border-radius: var(--radius-sm);
    font-size: 0.88rem;
    box-shadow: var(--shadow-lg);
    animation: slideIn 0.3s ease;
    max-width: 360px;
}
.toast.info { border-left: 4px solid #4fc3f7; }
.toast.success { border-left: 4px solid #66bb6a; }
.toast.warning { border-left: 4px solid var(--gold); }
@keyframes slideIn {
    from { opacity: 0; transform: translateX(40px); }
    to { opacity: 1; transform: translateX(0); }
}

/* ============================================================
   Fade-in Scroll Animation
   ============================================================ */
.fade-in {
    opacity: 0;
    transform: translateY(24px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}
.fade-in.visible {
    opacity: 1;
    transform: translateY(0);
}

/* ============================================================
   Scrollbar
   ============================================================ */
::-webkit-scrollbar { width: 6px; height: 6px; }
::-webkit-scrollbar-track { background: #f0f2f1; }
::-webkit-scrollbar-thumb { background: var(--primary); border-radius: 4px; }
::-webkit-scrollbar-thumb:hover { background: var(--primary-light); }

/* ============================================================
   Responsive - Tablet
   ============================================================ */
@media (max-width: 1024px) {
    .footer .footer-grid { grid-template-columns: 1fr 1fr; }
    .map-container { flex-direction: column; }
    .map-grid { grid-template-columns: repeat(auto-fill, minmax(90px, 1fr)); }
}

/* ============================================================
   Responsive - Mobile
   ============================================================ */
@media (max-width: 768px) {
    :root { --header-height: 56px; }
    .container { padding: 0 16px; }
    section { padding: 40px 0; }
    .header .container { flex-wrap: nowrap; }
    .nav-links {
        display: none;
        position: absolute;
        top: var(--header-height);
        left: 0; right: 0;
        background: rgba(255,255,255,0.98);
        backdrop-filter: blur(16px);
        flex-direction: column;
        align-items: center;
        gap: 4px;
        padding: 12px 16px 16px;
        border-bottom: 1px solid rgba(10,46,74,0.06);
        box-shadow: var(--shadow);
    }
    .nav-links.open { display: flex; }
    .nav-links a { width: 100%; text-align: center; padding: 10px; font-size: 0.95rem; }
    .menu-toggle { display: block; }
    .header-actions .btn-outline { display: none; }
    .header-actions .btn-primary { padding: 5px 12px; font-size: 0.78rem; }
    .logo { font-size: 1.15rem; }
    .logo .badge { display: none; }
    .stats-grid { grid-template-columns: repeat(2, 1fr); padding: 16px; }
    .stat-item .number { font-size: 1.4rem; }
    .realtime-ticker .items { gap: 10px; }
    .ai-query-wrapper { flex-wrap: wrap; border-radius: 30px; padding: 10px 16px; }
    .ai-query-wrapper input { width: 100%; }
    .map-grid { grid-template-columns: repeat(auto-fill, minmax(75px, 1fr)); }
    .region-node { font-size: 0.75rem; padding: 8px 4px; }
    .region-node .code { font-size: 0.5rem; }
    .supply-item { flex-direction: column; align-items: flex-start; }
    .supply-item .date { align-self: flex-end; }
    .footer .footer-grid { grid-template-columns: 1fr; }
    .global-help-btn { width: 48px; height: 48px; font-size: 1.3rem; bottom: 16px; right: 16px; }
    .back-to-top { bottom: 72px; right: 16px; width: 40px; height: 40px; }
    .modal-content { padding: 24px 18px; margin: 10px; }
    .service-grid { grid-template-columns: repeat(auto-fit, minmax(160px, 1fr)); }
    .agent-showcase { grid-template-columns: 1fr; }
    .value-table { font-size: 0.8rem; }
    .value-table th, .value-table td { padding: 10px 12px; }
    .onboarding-step { padding: 10px 14px; font-size: 0.82rem; }
    .trace-step { min-width: 120px; }
    .trace-step .step-arrow { display: none; }
    .industry-tag { font-size: 0.78rem; padding: 6px 12px; }
    .code-structure { font-size: 0.7rem; padding: 14px; }
    .arch-tree .node { min-width: 120px; padding: 8px 16px; font-size: 0.82rem; }
    .arch-tree .branch { gap: 16px; }
    .toast-container { right: 12px; left: 12px; }
    .toast { max-width: 100%; }
}

@media (max-width: 400px) {
    .hero-title { font-size: 1.6rem; }
    .stats-grid .stat-item .number { font-size: 1.2rem; }
    .ai-examples .example { font-size: 0.72rem; padding: 2px 8px; }
    .map-grid { grid-template-columns: repeat(auto-fill, minmax(68px, 1fr)); }
    .region-node { font-size: 0.7rem; padding: 6px 3px; }
    .supply-item .info { gap: 6px; }
    .supply-item .info .type-badge { font-size: 0.65rem; padding: 1px 10px; }
}