/* ===== Reset & Variables ===== */
:root {
    --primary: #0D9488;       /* 春晓品牌绿 teal-600 */
    --primary-d: #0F766E;     /* teal-700 */
    --primary-l: #14B8A6;     /* teal-500 */
    --green: #10B981;         /* emerald-500 强调绿 */
    --green-d: #059669;       /* emerald-600 */
    --green-l: #34D399;       /* emerald-400 */
    --green-glow: rgba(16, 185, 129, 0.15);
    --bg: #F0FDF4;            /* mint浅绿底 */
    --bg-alt: #ECFDF5;        /* 稍深一点的mint */
    --bg-dark: #134E4A;       /* teal-900 */
    --text: #334155;          /* slate-700 */
    --text-heading: #0F172A;  /* slate-900 */
    --text-muted: #64748B;    /* slate-500 */
    --border: #D1FAE5;        /* emerald-100 */
    --card: #FFFFFF;
    --danger: #14B8A6;        /* 冷色调 teal-500 */
    --shadow-sm: 0 1px 3px rgba(13, 148, 136, 0.04);
    --shadow: 0 4px 20px rgba(13, 148, 136, 0.06);
    --shadow-lg: 0 12px 40px rgba(13, 148, 136, 0.08);
    --radius: 16px;
    --radius-sm: 10px;
    --max-w: 1200px;
    --nav-h: 72px;
    --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

*, *::before, *::after { margin:0; padding:0; box-sizing:border-box; }
html { scroll-behavior:smooth; font-size:16px; }
body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', 'PingFang SC', 'Microsoft YaHei', sans-serif;
    background: var(--bg);
    color: var(--text);
    line-height: 1.65;
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
}
a, button { text-decoration:none; color:inherit; border:none; background:none; cursor:pointer; font-family:inherit; font-size:inherit; }
ul, ol { list-style:none; }
img { max-width:100%; height:auto; display:block; }
.container { max-width:var(--max-w); margin:0 auto; padding:0 24px; }
svg { display:inline-block; vertical-align:middle; flex-shrink:0; }
.text-green { color:var(--green-d); font-weight:600; }
.text-primary { color:var(--primary-d); font-weight:600; }
.gradient-text { background:linear-gradient(135deg, var(--primary), var(--green)); -webkit-background-clip:text; -webkit-text-fill-color:transparent; background-clip:text; }

/* ===== Animations ===== */
@keyframes fadeUp { from { opacity:0; transform:translateY(30px); } to { opacity:1; transform:translateY(0); } }
@keyframes fadeIn { from { opacity:0; } to { opacity:1; } }
@keyframes pulse { 0%, 100% { box-shadow: 0 0 0 0 var(--green-glow); } 50% { box-shadow: 0 0 0 12px transparent; } }
@keyframes float { 0%, 100% { transform:translateY(0); } 50% { transform:translateY(-8px); } }
@keyframes nodePulse { 0%, 100% { box-shadow: 0 0 0 0 rgba(13, 148, 136, 0.3); } 50% { box-shadow: 0 0 0 8px transparent; } }
@keyframes dataFlow { 0% { transform: translateY(0); opacity: 0; } 10% { opacity: 1; } 90% { opacity: 1; } 100% { transform: translateY(-40px); opacity: 0; } }
@keyframes ringRotate { from { transform: rotate(0deg); } to { transform: rotate(360deg); } }
@keyframes twinFloat { 0%, 100% { transform: translateY(0); } 50% { transform: translateY(-6px); } }
@keyframes twinNode { 0% { opacity: 0; transform: scale(0); } 50% { opacity: 1; transform: scale(1); } 100% { opacity: 0; transform: scale(0); } }
@keyframes countPop { 0% { transform: scale(1); } 50% { transform: scale(1.1); } 100% { transform: scale(1); } }
@keyframes marquee { 0% { transform: translateX(0); } 100% { transform: translateX(-50%); } }

.reveal { opacity:0; transform:translateY(30px); transition: opacity 0.8s ease, transform 0.8s ease; }
.reveal.visible { opacity:1; transform:translateY(0); }

/* ===== Buttons ===== */
.btn-primary {
    display:inline-flex; align-items:center; gap:8px;
    padding:12px 28px;
    background:linear-gradient(135deg, var(--primary), var(--green));
    color:#fff; font-weight:600; font-size:15px;
    border-radius:50px; transition:all var(--transition);
    white-space:nowrap; box-shadow: 0 4px 16px rgba(13, 148, 136, 0.2);
}
.btn-primary:hover { transform:translateY(-2px); box-shadow:0 8px 28px rgba(13, 148, 136, 0.25); }
.btn-primary:active { transform:scale(0.97); }
.btn-primary.btn-lg { padding:15px 36px; font-size:16px; }

.btn-outline {
    display:inline-flex; align-items:center; gap:8px;
    padding:12px 28px;
    border:1.5px solid var(--primary); color:var(--primary-d);
    font-weight:600; font-size:15px;
    border-radius:50px; transition:all var(--transition);
    white-space:nowrap;
}
.btn-outline:hover { background:rgba(13, 148, 136, 0.08); transform:translateY(-2px); }
.btn-outline:active { transform:scale(0.97); }
.btn-outline.btn-lg { padding:15px 36px; font-size:16px; }
.btn-outline-dark { border-color:var(--text-muted); color:var(--text); }
.btn-outline-dark:hover { border-color:var(--primary); color:var(--primary-d); background:rgba(13, 148, 136, 0.08); }

/* ===== Nav ===== */
.nav {
    position:fixed; top:0; left:0; right:0; z-index:1000;
    background:rgba(255,255,255,0.92); backdrop-filter:blur(12px); -webkit-backdrop-filter:blur(12px);
    height:var(--nav-h); display:flex; align-items:center;
    transition:background var(--transition), box-shadow var(--transition);
}
.nav.scrolled { background:rgba(255,255,255,0.98); box-shadow:0 1px 12px rgba(13, 148, 136, 0.06); }
.nav-inner { display:flex; align-items:center; justify-content:space-between; width:100%; max-width:var(--max-w); margin:0 auto; padding:0 24px; }
.nav-logo { display:flex; align-items:center; gap:10px; font-size:18px; font-weight:700; color:var(--text-heading); }
.nav-logo img { width:32px; height:32px; border-radius:8px; object-fit:cover; }
.nav-links { display:flex; align-items:center; gap:4px; }
.nav-dropdown-btn {
    display:flex; align-items:center; gap:6px;
    padding:8px 14px; font-size:14px; font-weight:500; color:var(--text);
    border-radius:8px; transition:all 0.2s;
}
.nav-dropdown-btn:hover { background:var(--bg); color:var(--primary-d); }
.nav-dropdown-btn.active { background:rgba(13, 148, 136, 0.08); color:var(--primary-d); }
.nav-dropdown-btn svg { transition:transform 0.2s; }
.nav-dropdown-btn.active svg { transform:rotate(180deg); }
.nav-cta { padding:10px 22px; font-size:14px; }
.nav-toggle { display:none; flex-direction:column; gap:5px; width:28px; padding:4px; }
.nav-toggle span { display:block; height:2px; background:var(--text-heading); border-radius:2px; transition:0.3s; }

/* Dropdown */
.nav-dropdown {
    display:none; position:absolute; top:var(--nav-h); left:50%; transform:translateX(-50%);
    background:var(--card); border:1px solid var(--border); border-radius:var(--radius);
    box-shadow:var(--shadow-lg); padding:8px; min-width:240px; z-index:1010;
}
.nav-dropdown.show { display:block; animation:fadeIn 0.2s ease; }
.dd-grid { display:grid; grid-template-columns:repeat(2, 1fr); gap:6px; }
.dd-item {
    display:flex; flex-direction:column; align-items:center; gap:8px; padding:16px 12px; border-radius:var(--radius-sm);
    cursor:pointer; transition:all 0.15s; text-align:center;
}
.dd-item:hover { background:var(--bg); transform:translateY(-1px); }
.dd-item:hover .dd-icon { background:rgba(13, 148, 136, 0.1); color:var(--primary); }
.dd-icon { width:44px; height:44px; display:flex; align-items:center; justify-content:center; background:var(--bg); border-radius:12px; color:var(--primary-d); transition:all 0.15s; }
.dd-item strong { font-size:13px; color:var(--text-heading); font-weight:600; }

/* ===== Hero ===== */
.hero {
    position:relative; min-height:100vh; display:flex; align-items:center;
    background:linear-gradient(180deg, #FFFFFF 0%, #D1FAE5 40%, var(--bg) 100%);
    overflow:hidden; padding:calc(var(--nav-h) + 40px) 0 80px;
}
.hero-canvas { position:absolute; top:0; left:0; width:100%; height:100%; pointer-events:none; }
.hero-grid-bg {
    position:absolute; top:0; left:0; width:100%; height:100%;
    background-image:
        linear-gradient(rgba(13, 148, 136, 0.03) 1px, transparent 1px),
        linear-gradient(90deg, rgba(13, 148, 136, 0.03) 1px, transparent 1px);
    background-size: 60px 60px;
}
.hero-inner { position:relative; z-index:2; text-align:center; max-width:900px; }
.hero-badge {
    display:inline-flex; align-items:center; gap:8px;
    padding:8px 20px; background:rgba(13, 148, 136, 0.08); border:1px solid rgba(13, 148, 136, 0.2);
    border-radius:50px; font-size:14px; color:var(--primary-d); font-weight:500;
    margin-bottom:28px;
}
.hero-badge-dot { width:8px; height:8px; background:var(--primary); border-radius:50%; animation:pulse 2s infinite; }
.hero-title { font-size:clamp(2.2rem, 5.5vw, 4rem); font-weight:900; color:var(--text-heading); line-height:1.15; margin-bottom:24px; letter-spacing:-0.02em; }
.hero-sub { font-size:clamp(1.05rem, 1.6vw, 1.25rem); color:var(--text-muted); line-height:1.8; margin-bottom:36px; max-width:640px; margin-left:auto; margin-right:auto; }
.hero-sub strong { color:var(--primary-d); font-size:1.1em; }
.hero-actions { display:flex; align-items:center; justify-content:center; gap:16px; flex-wrap:wrap; margin-bottom:60px; }
.hero-stats { display:grid; grid-template-columns:repeat(4, 1fr); gap:16px; }
.hero-stat { padding:28px 16px; background:var(--card); border-radius:var(--radius); border:1px solid var(--border); transition:all var(--transition); }
.hero-stat:hover { border-color:var(--primary); box-shadow:var(--shadow); transform:translateY(-2px); }
.hero-stat-num { display:flex; align-items:baseline; gap:2px; justify-content:center; margin-bottom:8px; }
.hero-stat-num .num { font-size:clamp(2.6rem, 4.5vw, 3.6rem); font-weight:900; color:var(--primary-d); line-height:1; }
.hero-stat-num .num .counter { font-size:inherit; font-weight:inherit; color:inherit; }
.hero-stat-num .unit { font-size:clamp(1rem, 1.5vw, 1.3rem); font-weight:600; color:var(--primary); line-height:1; opacity:0.9; }
.hero-stat-label { font-size:13px; color:var(--text-muted); font-weight:500; }

/* ===== Digital Twin Section - Static Comparison ===== */
.digital-twin {
    position:relative; padding:120px 0;
    background: linear-gradient(180deg, var(--bg) 0%, #D1FAE5 30%, #F0FDF4 100%);
}
.digital-twin::before {
    content: ''; position:absolute; top:0; left:0; width:100%; height:100%;
    background-image:
        linear-gradient(rgba(13, 148, 136, 0.02) 1px, transparent 1px),
        linear-gradient(90deg, rgba(13, 148, 136, 0.02) 1px, transparent 1px);
    background-size: 80px 80px;
    pointer-events: none;
}
.twin-container { position:relative; z-index:1; }
.twin-header { text-align:center; margin-bottom:64px; }
.twin-header h2 { font-size:clamp(2rem, 4vw, 3rem); font-weight:900; color:var(--text-heading); line-height:1.2; margin-bottom:16px; letter-spacing:-0.02em; }
.twin-header h2 .text-muted { color:#94A3B8; font-weight:700; }
.twin-header p { font-size:1.05rem; color:var(--text-muted); max-width:640px; margin:0 auto; line-height:1.7; }

/* Twin Compare - Left/Right Equal Width */
.twin-compare-wrap {
    display: grid;
    grid-template-columns: 1fr 64px 1fr;
    gap: 0;
    max-width: 1000px;
    margin: 0 auto 56px;
    background: var(--card);
    border: 1px solid var(--border);
    border-radius: 24px;
    overflow: hidden;
    box-shadow: var(--shadow);
}

.twin-side {
    padding: 36px 32px;
    display: flex;
    flex-direction: column;
    transition: all var(--transition);
}
.twin-side-left {
    background: linear-gradient(180deg, #FFFFFF 0%, #F8FAFC 100%);
    border-right: 1px solid var(--border);
}
.twin-side-right {
    background: linear-gradient(180deg, #FFFFFF 0%, #F0FDF4 100%);
}

.twin-side-label {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 20px;
}
.twin-label-icon {
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 12px;
    background: rgba(13, 148, 136, 0.08);
    color: var(--primary);
}
.twin-label-icon-grey {
    background: #F1F5F9;
    color: #94A3B8;
}
.twin-label-tag {
    font-size: 12px;
    font-weight: 700;
    padding: 4px 12px;
    border-radius: 50px;
    background: #F1F5F9;
    color: #64748B;
}
.twin-label-tag-ai {
    background: linear-gradient(135deg, var(--primary), var(--green));
    color: #fff;
}

.twin-side-title {
    font-size: 1.3rem;
    font-weight: 800;
    color: var(--text-heading);
    margin-bottom: 6px;
}
.twin-side-sub {
    font-size: 14px;
    color: var(--text-muted);
    margin-bottom: 24px;
}
.twin-side-list {
    display: flex;
    flex-direction: column;
    gap: 12px;
    margin-bottom: 28px;
}
.twin-side-list li {
    display: flex;
    align-items: flex-start;
    gap: 10px;
    font-size: 14px;
    color: var(--text);
    line-height: 1.5;
}
.side-list-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    flex-shrink: 0;
    margin-top: 6px;
}
.dot-grey { background: #CBD5E1; }
.dot-green { background: var(--green); }

.twin-side-highlight {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 16px;
    margin-top: auto;
    padding-top: 20px;
    border-top: 1px solid var(--border);
}
.tsh-item {
    display: flex;
    flex-direction: column;
    gap: 4px;
    padding: 14px;
    border-radius: 12px;
    background: rgba(13, 148, 136, 0.04);
}
.tsh-item-grey {
    background: #F1F5F9;
}
.tsh-value {
    font-size: 1.6rem;
    font-weight: 900;
    color: var(--primary-d);
    line-height: 1;
}
.tsh-item-grey .tsh-value {
    color: #64748B;
}
.tsh-value span {
    font-size: 0.95rem;
    font-weight: 600;
    margin-left: 2px;
}
.tsh-label {
    font-size: 12px;
    color: var(--text-muted);
}

.twin-divider {
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--card);
}
.twin-divider-line {
    position: absolute;
    width: 2px;
    height: 100%;
    background: linear-gradient(180deg, #E2E8F0 0%, var(--primary) 50%, #E2E8F0 100%);
}
.twin-divider-core {
    position: relative;
    z-index: 2;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 6px;
}
.twin-divider-text {
    width: 44px;
    height: 44px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    background: var(--card);
    border: 2px solid var(--primary);
    color: var(--primary-d);
    font-size: 12px;
    font-weight: 800;
    box-shadow: 0 4px 16px rgba(13, 148, 136, 0.15);
}
.twin-divider-arrow {
    font-size: 16px;
    color: var(--primary);
    font-weight: 700;
}

/* Metrics Grid */
.twin-metrics-grid { display:grid; grid-template-columns:repeat(2, 1fr); gap:20px; max-width:800px; margin:0 auto 48px; }
.twin-metric-card { background:var(--card); border:1px solid var(--border); border-radius:16px; padding:24px; transition:all var(--transition); }
.twin-metric-card:hover { box-shadow:var(--shadow); border-color:var(--primary); }
.metric-card-top { display:flex; align-items:center; justify-content:space-between; gap:8px; margin-bottom:14px; flex-wrap:wrap; }
.metric-card-label { font-size:13px; color:var(--text-muted); font-weight:500; }
.metric-card-value { font-size:18px; font-weight:800; }
.metric-card-value.human-val { color:#94A3B8; }
.metric-card-value.ai-val { color:var(--green-d); }
.metric-card-arrow { color:var(--primary); font-weight:700; }
.metric-bar { height:8px; background:var(--bg-alt); border-radius:4px; overflow:hidden; position:relative; }
.metric-bar-fill { display:block; height:100%; width:var(--to); background:linear-gradient(90deg, var(--primary), var(--green)); border-radius:4px; position:relative; }
.metric-bar-fill::before { content:''; position:absolute; left:0; top:0; height:100%; width:var(--from); background:linear-gradient(90deg, #94A3B8, #CBD5E1); border-radius:4px 0 0 4px; }
.metric-bar-fill.instant::before { display:none; }

/* Twin Capabilities */
.twin-capabilities { display:grid; grid-template-columns:repeat(4, 1fr); gap:16px; max-width:900px; margin:0 auto; }
.twin-cap-item { display:flex; align-items:center; gap:14px; padding:20px; background:var(--card); border:1px solid var(--border); border-radius:16px; transition:all var(--transition); }
.twin-cap-item:hover { border-color:var(--primary); box-shadow:var(--shadow); }
.cap-icon { width:44px; height:44px; display:flex; align-items:center; justify-content:center; background:var(--bg-alt); border-radius:12px; color:var(--primary-d); flex-shrink:0; }
.cap-text strong { display:block; font-size:14px; color:var(--text-heading); margin-bottom:2px; }
.cap-text span { font-size:12px; color:var(--text-muted); }

/* ===== Sections ===== */
.section { padding:100px 0; }
.section-alt { background:var(--bg-alt); }
.section-dark { background:var(--bg-dark); color:#E2E8F0; }
.section-dark .section-title { color:#F1F5F9; }
.section-dark .section-desc { color:#94A3B8; }
.section-dark table { background:rgba(255,255,255,0.03); border:1px solid rgba(255,255,255,0.08); }
.section-dark td, .section-dark th { border-color:rgba(255,255,255,0.06); color:#E2E8F0; }
.section-dark th { color:#94A3B8; }

.section-label {
    display:inline-block; padding:6px 16px; background:rgba(13, 148, 136, 0.08); border:1px solid rgba(13, 148, 136, 0.15);
    border-radius:50px; font-size:13px; font-weight:600; color:var(--primary-d); margin-bottom:20px; text-transform:uppercase; letter-spacing:0.05em;
}
.label-light { background:rgba(13, 148, 136, 0.1); border-color:rgba(13, 148, 136, 0.2); }
.section-title { font-size:clamp(2rem, 4vw, 3rem); font-weight:900; color:var(--text-heading); line-height:1.2; margin-bottom:16px; letter-spacing:-0.02em; }
.title-light { color:#F1F5F9; }
.section-desc { font-size:1.05rem; color:var(--text-muted); max-width:700px; margin-bottom:48px; line-height:1.7; }

/* ===== Pain Points ===== */
.pain-grid { display:grid; grid-template-columns:repeat(3, 1fr); gap:20px; }
.pain-card {
    background:var(--card); border:1px solid var(--border); border-radius:var(--radius);
    padding:28px; transition:all var(--transition); position:relative; overflow:hidden;
}
.pain-card::before { content:''; position:absolute; top:0; left:0; width:4px; height:100%; background:var(--danger); border-radius:4px 0 0 4px; transition:width var(--transition); }
.pain-card:hover { box-shadow:var(--shadow); transform:translateY(-2px); }
.pain-card:hover::before { width:6px; }
.pain-card-header { display:flex; align-items:center; gap:10px; margin-bottom:14px; }
.pain-card-header svg { color:var(--primary); }
.pain-badge { font-size:12px; font-weight:700; padding:3px 10px; border-radius:6px; }
.pain-badge.danger { background:rgba(13, 148, 136, 0.1); color:var(--primary-d); }
.pain-card h4 { font-size:16px; color:var(--text-heading); margin-bottom:10px; font-weight:700; }
.pain-card p { font-size:14px; color:var(--text-muted); line-height:1.6; margin-bottom:16px; }
.pain-stat { display:flex; align-items:flex-start; gap:12px; padding:12px; background:var(--bg-alt); border-radius:10px; }
.pain-stat-num { font-size:24px; font-weight:900; color:var(--primary-d); white-space:nowrap; }
.pain-stat-text { font-size:13px; color:var(--text-muted); line-height:1.5; }

/* ===== AI Agents Tabbed Interface ===== */
.agents-tabs {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 12px;
    margin-bottom: 32px;
}
.agents-tab {
    display: flex;
    align-items: center;
    gap: 14px;
    padding: 20px 22px;
    background: var(--card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    cursor: pointer;
    transition: all var(--transition);
    text-align: left;
    position: relative;
    overflow: hidden;
}
.agents-tab::before {
    content: '';
    position: absolute;
    top: 0; left: 0;
    width: 100%; height: 3px;
    background: linear-gradient(90deg, var(--primary), var(--green));
    transform: scaleX(0);
    transform-origin: left;
    transition: transform 0.3s ease;
}
.agents-tab:hover {
    border-color: var(--primary);
    box-shadow: var(--shadow);
    transform: translateY(-1px);
}
.agents-tab:hover::before { transform: scaleX(1); }
.agents-tab.active {
    border-color: var(--primary);
    background: linear-gradient(180deg, rgba(13, 148, 136, 0.03) 0%, var(--card) 100%);
    box-shadow: 0 0 0 1px rgba(13, 148, 136, 0.12), 0 8px 24px rgba(13, 148, 136, 0.06);
}
.agents-tab.active::before { transform: scaleX(1); }

.at-icon {
    width: 48px; height: 48px;
    display: flex; align-items: center; justify-content: center;
    border-radius: 12px;
    flex-shrink: 0;
    transition: all var(--transition);
}
.at-icon-blue { background: rgba(13, 148, 136, 0.08); color: var(--primary); }
.at-icon-green { background: rgba(16, 185, 129, 0.08); color: var(--green); }
.at-icon-cyan { background: rgba(5, 150, 105, 0.08); color: var(--green-d); }
.agents-tab.active .at-icon-blue { background: rgba(13, 148, 136, 0.15); box-shadow: 0 0 16px rgba(13, 148, 136, 0.15); }
.agents-tab.active .at-icon-green { background: rgba(16, 185, 129, 0.15); box-shadow: 0 0 16px rgba(16, 185, 129, 0.15); }
.agents-tab.active .at-icon-cyan { background: rgba(5, 150, 105, 0.15); box-shadow: 0 0 16px rgba(5, 150, 105, 0.15); }

.at-info { flex: 1; min-width: 0; }
.at-label { display: block; font-size: 15px; font-weight: 800; color: var(--text-heading); margin-bottom: 3px; }
.at-sub { display: block; font-size: 12px; color: var(--text-muted); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.at-arrow {
    width: 28px; height: 28px;
    display: flex; align-items: center; justify-content: center;
    border-radius: 50%;
    background: var(--bg-alt);
    color: var(--text-muted);
    transition: all 0.3s ease;
    flex-shrink: 0;
}
.agents-tab.active .at-arrow { background: rgba(13, 148, 136, 0.1); color: var(--primary); transform: rotate(180deg); }

/* Panels */
.agents-panels {
    background: var(--card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    overflow: hidden;
    box-shadow: var(--shadow);
    margin-bottom: 20px;
}
.agents-panel {
    display: none;
    animation: fadeIn 0.35s ease;
}
.agents-panel.active { display: block; }

.panel-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 0;
}
.panel-left {
    padding: 36px;
    border-right: 1px solid var(--border);
}
.panel-right {
    padding: 36px;
    background: linear-gradient(135deg, #FAFFFC 0%, #F0FDF4 100%);
}
.panel-intro {
    font-size: 15px;
    color: var(--text-muted);
    line-height: 1.7;
    margin-bottom: 28px;
    padding-bottom: 20px;
    border-bottom: 1px solid var(--border);
}

/* Panel agent cards */
.panel-cards {
    display: flex;
    flex-direction: column;
    gap: 14px;
}
.panel-cards .agent-detail-card {
    background: var(--bg);
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: 18px;
}
.panel-cards .agent-detail-card:hover {
    border-color: var(--primary);
    box-shadow: var(--shadow);
    transform: translateY(-1px);
}

/* Visual Flow */
.panel-visual {
    margin-bottom: 32px;
}
.pv-title {
    font-size: 14px;
    font-weight: 700;
    color: var(--text-heading);
    margin-bottom: 20px;
    padding-left: 4px;
}
.visual-flow {
    display: flex;
    align-items: flex-start;
    gap: 0;
}
.vf-step {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
    min-width: 80px;
    text-align: center;
}
.vf-step span {
    font-size: 13px;
    font-weight: 700;
    color: var(--text-heading);
    line-height: 1.3;
}
.vf-step small {
    font-size: 11px;
    color: var(--text-muted);
    line-height: 1.2;
}
.vf-node {
    width: 52px;
    height: 52px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 14px;
    color: var(--primary-d);
    transition: all var(--transition);
}
.vf-node-1 { background: rgba(13, 148, 136, 0.08); }
.vf-node-2 { background: rgba(16, 185, 129, 0.08); color: var(--green-d); }
.vf-node-3 { background: rgba(14, 165, 233, 0.08); color: #0EA5E9; }
.vf-node-4 { background: rgba(139, 92, 246, 0.08); color: #8B5CF6; }
.vf-conn {
    display: flex;
    flex-direction: column;
    align-items: center;
    flex: 1;
    min-width: 30px;
    padding-top: 18px;
}
.vf-conn span {
    flex: 1;
    width: 100%;
    min-height: 2px;
    background: linear-gradient(90deg, var(--border), var(--primary), var(--border));
    border-radius: 1px;
}
.vf-conn svg {
    color: var(--primary);
    margin: 4px 0;
    flex-shrink: 0;
}

/* Panel Stats */
.panel-stats {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 12px;
    padding-top: 28px;
    border-top: 1px solid var(--border);
}
.ps-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 4px;
    padding: 14px 8px;
    background: var(--card);
    border: 1px solid var(--border);
    border-radius: 12px;
    transition: all var(--transition);
}
.ps-item:hover {
    border-color: var(--primary);
    box-shadow: var(--shadow);
}
.ps-val {
    font-size: 1.4rem;
    font-weight: 900;
    color: var(--primary-d);
    line-height: 1;
}
.ps-lbl {
    font-size: 11px;
    color: var(--text-muted);
    font-weight: 500;
}

/* Follow-up Loop Grid (替代 visual-flow 在 companion 面板) */
.panel-visual-loop .loop-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 10px;
    position: relative;
}

.loop-card {
    background: var(--card);
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: 14px 16px;
    transition: all var(--transition);
    position: relative;
    display: flex;
    flex-direction: column;
    gap: 10px;
}
.loop-card:hover {
    border-color: var(--primary);
    box-shadow: var(--shadow);
    transform: translateY(-1px);
}

.loop-step-tag {
    font-size: 11px;
    font-weight: 700;
    color: var(--primary-d);
    opacity: 0.6;
    letter-spacing: 0.02em;
}

.loop-card-body {
    display: flex;
    align-items: flex-start;
    gap: 12px;
}

.loop-icon {
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 10px;
    flex-shrink: 0;
}
.loop-card:nth-child(1) .loop-icon { background: rgba(13, 148, 136, 0.08); color: var(--primary-d); }
.loop-card:nth-child(2) .loop-icon { background: rgba(16, 185, 129, 0.08); color: var(--green-d); }
.loop-card:nth-child(3) .loop-icon { background: rgba(5, 150, 105, 0.08); color: var(--green-d); }
.loop-card:nth-child(4) .loop-icon { background: rgba(139, 92, 246, 0.08); color: #8B5CF6; }

.loop-text {
    display: flex;
    flex-direction: column;
    gap: 4px;
    min-width: 0;
}
.loop-text strong {
    font-size: 13px;
    font-weight: 700;
    color: var(--text-heading);
    line-height: 1.3;
}
.loop-text span {
    font-size: 11px;
    color: var(--text-muted);
    line-height: 1.3;
}

.loop-indicator {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    margin-top: 16px;
    padding: 10px;
    background: rgba(13, 148, 136, 0.04);
    border: 1px dashed rgba(13, 148, 136, 0.15);
    border-radius: 10px;
}
.loop-indicator svg {
    color: var(--primary);
    animation: ringRotate 3s linear infinite;
}
.loop-indicator span {
    font-size: 12px;
    color: var(--text-muted);
    font-weight: 500;
}

/* Agent detail cards (shared) */
.agent-detail-card {
    background: var(--card); border: 1px solid var(--border); border-radius: var(--radius);
    padding: 22px; transition: all var(--transition); cursor: pointer;
}
.agent-detail-card:hover { box-shadow: var(--shadow); transform: translateY(-2px); border-color: var(--primary); }
.adc-icon { width: 44px; height: 44px; display: flex; align-items: center; justify-content: center; background: var(--bg-alt); border-radius: 12px; color: var(--primary-d); margin-bottom: 14px; }
.agent-detail-card h4 { font-size: 15px; color: var(--text-heading); margin-bottom: 8px; font-weight: 700; }
.agent-detail-card p { font-size: 13px; color: var(--text-muted); line-height: 1.6; margin-bottom: 12px; }
.adc-tags { display: flex; flex-wrap: wrap; gap: 6px; }
.adc-tags span { font-size: 11px; padding: 3px 10px; background: var(--bg-alt); border-radius: 6px; color: var(--text-muted); }
.agent-detail-highlight { border-color: var(--primary); background: linear-gradient(135deg, rgba(13, 148, 136, 0.02), rgba(13, 148, 136, 0.04)); }
.agent-detail-highlight .adc-icon { background: rgba(13, 148, 136, 0.1); }

.agent-detail-card-accent {
    background: linear-gradient(135deg, rgba(13, 148, 136, 0.03), rgba(16, 185, 129, 0.04));
    border-left: 3px solid var(--primary);
}
.agent-detail-card-accent .adc-icon { background: rgba(13, 148, 136, 0.1); color: var(--primary-d); }

/* ===== Flow Track ===== */
.flow-track { display:flex; align-items:flex-start; gap:12px; overflow-x:auto; padding:20px 0; }
.flow-step {
    flex:0 0 200px; background:var(--card); border:1px solid var(--border); border-radius:var(--radius);
    padding:28px 20px; text-align:center; transition:all var(--transition); cursor:pointer;
}
.flow-step:hover { box-shadow:var(--shadow); transform:translateY(-2px); border-color:var(--primary); }
.flow-step-num { font-size:36px; font-weight:900; color:rgba(13, 148, 136, 0.15); margin-bottom:12px; }
.flow-step-icon { width:52px; height:52px; display:flex; align-items:center; justify-content:center; background:var(--bg-alt); border-radius:14px; margin:0 auto 16px; color:var(--primary-d); }
.flow-step h4 { font-size:15px; color:var(--text-heading); margin-bottom:8px; font-weight:700; }
.flow-step p { font-size:13px; color:var(--text-muted); line-height:1.6; }
.flow-arrow { display:flex; align-items:center; padding-top:40px; color:var(--primary); opacity:0.4; flex-shrink:0; }

/* ===== Platform ===== */
.platform-grid { display:grid; grid-template-columns:repeat(4, 1fr); gap:16px; }
.platform-card {
    background:var(--card); border:1px solid var(--border); border-radius:var(--radius);
    padding:24px; transition:all var(--transition); cursor:pointer;
}
.platform-card:hover { box-shadow:var(--shadow); transform:translateY(-2px); border-color:var(--primary); }
.platform-card-icon { width:44px; height:44px; display:flex; align-items:center; justify-content:center; background:var(--bg-alt); border-radius:12px; color:var(--primary-d); margin-bottom:14px; }
.platform-card h4 { font-size:15px; color:var(--text-heading); margin-bottom:14px; font-weight:700; }
.platform-card li { display:flex; align-items:flex-start; gap:8px; font-size:13px; color:var(--text-muted); margin-bottom:8px; line-height:1.5; }
.platform-card li svg { color:var(--green); margin-top:3px; }
.platform-devices { display:flex; align-items:center; gap:16px; margin-top:40px; padding:20px 24px; background:var(--card); border:1px solid var(--border); border-radius:var(--radius); }
.device-label { font-size:14px; font-weight:600; color:var(--text-heading); white-space:nowrap; }
.device-tags { display:flex; flex-wrap:wrap; gap:8px; }
.device-tag {
    display:inline-flex; align-items:center; gap:6px; padding:6px 14px;
    background:var(--bg); border:1px solid var(--border); border-radius:50px;
    font-size:13px; color:var(--text); transition:all var(--transition);
}
.device-tag:hover { border-color:var(--primary); color:var(--primary-d); }
.device-tag svg { color:var(--primary); }
.device-tag.more { background:rgba(13, 148, 136, 0.05); border-color:rgba(13, 148, 136, 0.2); color:var(--primary-d); }

/* ===== Metrics Table ===== */
.metrics-table { overflow-x:auto; }
.metrics-table table { width:100%; border-collapse:collapse; background:var(--card); border-radius:var(--radius); overflow:hidden; border:1px solid var(--border); }
.metrics-table th, .metrics-table td { padding:16px 20px; text-align:left; font-size:14px; border-bottom:1px solid var(--border); }
.metrics-table th { font-size:13px; font-weight:600; color:var(--text-muted); text-transform:uppercase; background:var(--bg-alt); letter-spacing:0.03em; }
.metrics-table tbody tr { transition:background 0.15s; }
.metrics-table tbody tr:hover { background:var(--bg-alt); }
.metrics-table tbody tr:last-child td { border-bottom:none; }
.col-before { color:var(--text-muted); }
.col-arrow { color:var(--primary); font-weight:700; width:40px; text-align:center; }
.col-after { font-weight:700; }
.tag-boost { display:inline-block; padding:2px 10px; background:rgba(13, 148, 136, 0.1); border-radius:6px; font-size:12px; font-weight:700; color:var(--primary-d); white-space:nowrap; }

/* ===== Cooperation Modes ===== */
.modes-grid { display:grid; grid-template-columns:repeat(3, 1fr); gap:20px; }
.mode-card {
    background:var(--card); border:1px solid var(--border); border-radius:var(--radius);
    padding:32px; transition:all var(--transition); position:relative; cursor:pointer;
}
.mode-card:hover { box-shadow:var(--shadow); transform:translateY(-2px); }
.mode-card-a { border-color:var(--primary); box-shadow: 0 0 0 1px var(--primary); }
.mode-card-tag { position:absolute; top:16px; right:16px; padding:4px 12px; background:var(--primary); border-radius:50px; font-size:11px; font-weight:700; color:#fff; }
.mode-card h4 { font-size:20px; color:var(--text-heading); margin-bottom:6px; font-weight:700; }
.mode-card-desc { font-size:14px; color:var(--text-muted); margin-bottom:24px; }
.mode-split { display:flex; flex-direction:column; gap:14px; }
.mode-split > div { display:flex; flex-direction:column; gap:4px; }
.mode-label { font-size:12px; font-weight:600; color:var(--text-muted); text-transform:uppercase; letter-spacing:0.04em; }
.mode-split > div span:last-child { font-size:14px; color:var(--text); }
.modes-notice {
    display:flex; align-items:flex-start; gap:12px; margin-top:32px;
    padding:20px 24px; background:rgba(13, 148, 136, 0.04); border:1px solid rgba(13, 148, 136, 0.12);
    border-radius:var(--radius);
}
.modes-notice svg { color:var(--primary-d); margin-top:2px; }
.modes-notice span { font-size:14px; color:var(--text-muted); line-height:1.6; }
.modes-notice strong { color:var(--text-heading); }

/* ===== Strength Section - Diverse Display ===== */
.strength-section { background:linear-gradient(180deg, var(--bg-alt) 0%, #FFFFFF 100%); }
.strength-intro { display:grid; grid-template-columns:1fr 1fr; gap:40px; align-items:center; margin-bottom:64px; }
.strength-intro-text h3 { font-size:1.8rem; font-weight:800; color:var(--text-heading); margin-bottom:16px; line-height:1.3; }
.strength-intro-text p { font-size:1rem; color:var(--text-muted); line-height:1.7; margin-bottom:24px; }
.strength-stats-row { display:grid; grid-template-columns:repeat(3, 1fr); gap:16px; }
.strength-stat-card { background:var(--card); border:1px solid var(--border); border-radius:var(--radius); padding:24px; text-align:center; transition:all var(--transition); }
.strength-stat-card:hover { box-shadow:var(--shadow); transform:translateY(-2px); }
.strength-stat-card .ss-num { font-size:2.4rem; font-weight:900; color:var(--primary-d); margin-bottom:8px; }
.strength-stat-card .ss-label { font-size:13px; color:var(--text-muted); font-weight:500; }

/* Logo wall */
.logo-wall { margin-bottom:64px; }
.logo-wall-title { display:flex; align-items:center; gap:16px; margin-bottom:32px; }
.logo-wall-title h3 { font-size:1.4rem; font-weight:800; color:var(--text-heading); }
.logo-wall-title .lw-line { flex:1; height:1px; background:var(--border); }
.logo-track { display:flex; gap:48px; overflow:hidden; mask-image:linear-gradient(90deg, transparent, #000 10%, #000 90%, transparent); }
.logo-track-inner { display:flex; gap:48px; animation:marquee 30s linear infinite; }
.logo-track-inner:hover { animation-play-state:paused; }
.logo-item { flex-shrink:0; display:flex; align-items:center; justify-content:center; height:64px; padding:0 24px; background:var(--card); border:1px solid var(--border); border-radius:12px; font-size:15px; font-weight:600; color:var(--text-muted); min-width:160px; }

/* Resource grid */
.resource-grid { display:grid; grid-template-columns:repeat(3, 1fr); gap:24px; margin-bottom:64px; }
.resource-card { background:var(--card); border:1px solid var(--border); border-radius:var(--radius); padding:32px; transition:all var(--transition); }
.resource-card:hover { box-shadow:var(--shadow); border-color:var(--primary); transform:translateY(-2px); }
.resource-card .rc-icon { width:48px; height:48px; display:flex; align-items:center; justify-content:center; background:linear-gradient(135deg, rgba(13,148,136,0.1), rgba(16,185,129,0.1)); border-radius:12px; color:var(--primary-d); margin-bottom:18px; }
.resource-card h4 { font-size:1.1rem; font-weight:800; color:var(--text-heading); margin-bottom:10px; }
.resource-card p { font-size:14px; color:var(--text-muted); line-height:1.7; margin-bottom:16px; }
.resource-card .rc-tags { display:flex; flex-wrap:wrap; gap:8px; }
.resource-card .rc-tags span { font-size:12px; padding:4px 10px; background:var(--bg-alt); border-radius:50px; color:var(--text-muted); }

/* Honors / certifications */
.honors-grid { display:grid; grid-template-columns:repeat(4, 1fr); gap:16px; }
.honor-card { background:var(--card); border:1px solid var(--border); border-radius:var(--radius); padding:24px; text-align:center; transition:all var(--transition); }
.honor-card:hover { box-shadow:var(--shadow); transform:translateY(-2px); }
.honor-card .hc-icon { width:44px; height:44px; display:flex; align-items:center; justify-content:center; background:var(--bg-alt); border-radius:50%; margin:0 auto 14px; color:var(--primary-d); }
.honor-card h4 { font-size:14px; font-weight:700; color:var(--text-heading); margin-bottom:4px; }
.honor-card p { font-size:12px; color:var(--text-muted); }

/* ===== FAQ ===== */
.faq-list { max-width:800px; display:flex; flex-direction:column; gap:12px; }
.faq-item { border:1px solid var(--border); border-radius:var(--radius); background:var(--card); overflow:hidden; }
.faq-btn {
    display:flex; align-items:center; justify-content:space-between; width:100%;
    padding:20px 24px; font-size:15px; font-weight:600; color:var(--text-heading); text-align:left;
    transition:all 0.2s;
}
.faq-btn:hover { color:var(--primary-d); }
.faq-btn.active { color:var(--primary-d); }
.faq-btn.active svg { transform:rotate(45deg); }
.faq-btn svg { transition:transform 0.2s; color:var(--text-muted); flex-shrink:0; }
.faq-ans { max-height:0; overflow:hidden; transition:max-height 0.3s ease, padding 0.3s ease; }
.faq-ans.open { max-height:200px; }
.faq-ans p { padding:0 24px 20px; font-size:14px; color:var(--text-muted); line-height:1.7; }

/* ===== CTA ===== */
.section-cta { background:linear-gradient(180deg, var(--bg) 0%, #D1FAE5 100%); }
.cta-card {
    background:var(--card); border:1px solid rgba(13, 148, 136, 0.2); border-radius:24px;
    padding:60px 48px; text-align:center; max-width:800px; margin:0 auto;
    box-shadow: 0 0 0 1px rgba(13, 148, 136, 0.05), 0 20px 60px rgba(13, 148, 136, 0.04);
}
.cta-card h2 { font-size:clamp(1.8rem, 3.5vw, 2.6rem); font-weight:900; color:var(--text-heading); margin-bottom:16px; }
.cta-desc { font-size:1.05rem; color:var(--text-muted); line-height:1.8; margin-bottom:32px; max-width:560px; margin-left:auto; margin-right:auto; }
.cta-actions { display:flex; align-items:center; justify-content:center; gap:16px; flex-wrap:wrap; margin-bottom:32px; }
.cta-contact { display:flex; justify-content:center; gap:28px; flex-wrap:wrap; }
.contact-item { display:flex; align-items:center; gap:8px; font-size:13px; color:var(--text-muted); }
.contact-item svg { color:var(--primary); }

/* ===== Footer ===== */
.footer { background:var(--bg); border-top:1px solid var(--border); padding:60px 0 30px; }
.footer-grid { display:grid; grid-template-columns:2fr 1fr 1fr 1fr 1fr; gap:40px; margin-bottom:40px; }
.footer-brand p { font-size:14px; color:var(--text-muted); line-height:1.7; margin-top:12px; }
.footer-logo { display:flex; align-items:center; gap:10px; font-size:18px; font-weight:700; color:var(--text-heading); }
.footer-logo img { width:28px; height:28px; border-radius:6px; object-fit:cover; }
.footer-col h5 { font-size:14px; font-weight:700; color:var(--text-heading); margin-bottom:16px; }
.footer-col button { display:block; font-size:13px; color:var(--text-muted); padding:6px 0; transition:color 0.15s; text-align:left; width:100%; }
.footer-col button:hover { color:var(--primary-d); }
.footer-bottom { display:flex; justify-content:space-between; align-items:center; padding-top:24px; border-top:1px solid var(--border); font-size:13px; color:var(--text-muted); flex-wrap:wrap; gap:12px; }
.footer-disclaimer { text-align:right; max-width:400px; }

/* ===== Modal ===== */
.modal-overlay { display:none; position:fixed; inset:0; background:rgba(0,0,0,0.5); z-index:2000; align-items:center; justify-content:center; padding:20px; }
.modal-overlay.show { display:flex; animation:fadeIn 0.2s ease; }
.modal-content { background:var(--card); border-radius:var(--radius); max-width:540px; width:100%; max-height:80vh; overflow-y:auto; padding:36px; position:relative; box-shadow:var(--shadow-lg); }
.modal-close { position:absolute; top:12px; right:16px; font-size:28px; color:var(--text-muted); padding:4px 8px; z-index:2; }
.modal-close:hover { color:var(--text-heading); }
.modal-body h3 { font-size:20px; color:var(--text-heading); margin-bottom:12px; font-weight:700; }
.modal-body p { font-size:14px; color:var(--text-muted); line-height:1.7; }

/* ===== Contact Modal ===== */
.contact-modal-content { max-width:480px; padding:0; overflow:hidden; }
.contact-modal-body { padding:40px 36px 32px; }
.contact-modal-header { text-align:center; margin-bottom:28px; }
.contact-modal-icon { width:64px; height:64px; border-radius:50%; background:linear-gradient(135deg, rgba(13,148,136,0.1), rgba(16,185,129,0.1)); display:flex; align-items:center; justify-content:center; margin:0 auto 16px; color:var(--primary); }
.contact-modal-header h2 { font-size:24px; font-weight:700; color:var(--text-heading); margin-bottom:6px; }
.contact-modal-header p { font-size:14px; color:var(--text-muted); }
.contact-modal-list { display:flex; flex-direction:column; gap:16px; margin-bottom:24px; }
.contact-modal-item { display:flex; align-items:flex-start; gap:14px; padding:18px 20px; background:var(--bg); border-radius:var(--radius-sm); border:1px solid var(--border); transition:all 0.2s; }
.contact-modal-item:hover { border-color:var(--primary-l); background:rgba(13,148,136,0.04); }
.cmi-icon { width:42px; height:42px; border-radius:10px; display:flex; align-items:center; justify-content:center; flex-shrink:0; }
.cmi-icon-phone { background:rgba(13,148,136,0.1); color:var(--primary); }
.cmi-icon-mail { background:rgba(59,130,246,0.1); color:#3B82F6; }
.cmi-icon-addr { background:rgba(245,158,11,0.1); color:#F59E0B; }
.cmi-content { display:flex; flex-direction:column; gap:4px; flex:1; min-width:0; }
.cmi-label { font-size:12px; color:var(--text-muted); font-weight:500; }
.cmi-value { font-size:15px; color:var(--text-heading); font-weight:600; line-height:1.5; word-break:break-all; }
.cmi-value-link { color:var(--primary-d); text-decoration:none; transition:color 0.2s; }
.cmi-value-link:hover { color:var(--primary-l); text-decoration:underline; }
.contact-modal-footer { display:flex; align-items:center; justify-content:center; gap:6px; padding-top:20px; border-top:1px solid var(--border); font-size:13px; color:var(--text-muted); }
.contact-modal-footer svg { color:var(--primary); flex-shrink:0; }

/* ===== Toast ===== */
.toast-msg { position:fixed; bottom:40px; left:50%; transform:translateX(-50%); background:var(--card); color:var(--text-heading); padding:14px 28px; border-radius:28px; font-size:14px; z-index:9999; animation:fadeUp 0.3s ease; border:1px solid rgba(13, 148, 136, 0.3); box-shadow:var(--shadow-lg); max-width:90%; text-align:center; }

/* ===== Responsive ===== */
@media (max-width:1024px) {
    .hero-stats { grid-template-columns:repeat(2, 1fr); }
    .pain-grid { grid-template-columns:repeat(2, 1fr); }
    .agents-tabs { gap: 10px; }
    .agents-tab { padding: 16px 18px; }
    .at-icon { width: 40px; height: 40px; }
    .at-label { font-size: 14px; }
    .panel-content { grid-template-columns: 1fr; }
    .panel-left { border-right: none; border-bottom: 1px solid var(--border); }
    .panel-right { background: var(--bg); }
    .visual-flow { flex-wrap: wrap; justify-content: center; gap: 8px; }
    .vf-conn { min-width: 20px; }
    .loop-grid { gap: 8px; }
    .loop-card { padding: 12px 14px; }
    .platform-grid { grid-template-columns:repeat(2, 1fr); }
    .trust-grid { grid-template-columns:repeat(2, 1fr); }
    .footer-grid { grid-template-columns:2fr 1fr 1fr; }
    .flow-track { flex-wrap:nowrap; }
    .flow-step { flex:0 0 auto; min-width:180px; }
    .flow-arrow { display:none; }
    .twin-compare-wrap { grid-template-columns: 1fr 56px 1fr; }
    .twin-side { padding: 28px 24px; }
    .twin-capabilities { grid-template-columns:repeat(2, 1fr); }
    .twin-metrics-grid { grid-template-columns:1fr; }
    .strength-intro { grid-template-columns:1fr; gap:32px; }
    .strength-stats-row { grid-template-columns:repeat(3, 1fr); }
    .resource-grid { grid-template-columns:repeat(2, 1fr); }
    .honors-grid { grid-template-columns:repeat(2, 1fr); }
}

@media (max-width:768px) {
    :root { --nav-h: 60px; }
    .section { padding:60px 0; }
    .nav-links { display:none; }
    .nav-cta { display:none; }
    .nav-toggle { display:flex; }
    .nav.mobile-open { height:auto; }
    .nav.mobile-open .nav-links { display:flex; flex-direction:column; width:100%; position:absolute; top:var(--nav-h); left:0; background:var(--card); padding:16px; border-bottom:1px solid var(--border); box-shadow:var(--shadow); }
    .nav.mobile-open .nav-cta { display:flex; }

    .hero-actions { flex-direction:column; align-items:center; }

    .pain-grid { grid-template-columns:1fr; }
    .agents-tabs { grid-template-columns: 1fr; }
    .at-sub { display: none; }
    .agents-tab { padding: 14px 18px; }
    .panel-left, .panel-right { padding: 24px 20px; }
    .visual-flow { flex-direction: column; align-items: center; }
    .vf-conn { flex-direction: row; padding-top: 0; min-width: auto; }
    .vf-conn span { width: 2px; min-height: 20px; }
    .vf-conn svg { transform: rotate(90deg); }
    .panel-stats { grid-template-columns: repeat(3, 1fr); gap: 8px; }
    .ps-val { font-size: 1.2rem; }
    .platform-grid { grid-template-columns:1fr; }
    .modes-grid { grid-template-columns:1fr; }
    .footer-grid { grid-template-columns:1fr 1fr; gap:24px; }
    .strength-stats-row { grid-template-columns:1fr; }
    .resource-grid { grid-template-columns:1fr; }
    .honors-grid { grid-template-columns:1fr; }

    .cta-card { padding:36px 24px; }
    .cta-contact { flex-direction:column; align-items:center; gap:12px; }
    .metrics-table th, .metrics-table td { padding:12px 14px; font-size:13px; }
    [data-mobile]::before { content:"\a"; white-space:pre; }
    .flow-track { flex-direction:column; }
    .flow-step { width:100%; text-align:center; }
    .faq-btn { font-size:14px; padding:16px 20px; }
    .digital-twin { padding: 80px 0; }
    .twin-compare-wrap { grid-template-columns: 1fr; }
    .twin-side-left { border-right: none; border-bottom: 1px solid var(--border); }
    .twin-divider { height: 60px; }
    .twin-divider-line { width: 100%; height: 2px; background: linear-gradient(90deg, #E2E8F0 0%, var(--primary) 50%, #E2E8F0 100%); }
    .twin-metrics-grid { gap: 14px; }
    .twin-capabilities { grid-template-columns: 1fr; }
    .twin-side-highlight { margin-top: 28px; }
}

@media (max-width:480px) {
    .container { padding:0 16px; }
    .footer-grid { grid-template-columns:1fr; }
    .footer-bottom { flex-direction:column; text-align:center; }
    .footer-disclaimer { text-align:center; }
    .twin-side { padding: 24px 20px; }
    .twin-side-title { font-size: 1.15rem; }
    .tsh-value { font-size: 1.35rem; }
    .tsh-value span { font-size: 0.8rem; }
    .twin-metric-card { padding: 18px; }
    .metric-card-top { flex-direction: column; align-items: flex-start; gap: 6px; }
    .metric-card-value { font-size: 16px; }
    .logo-item { min-width:120px; font-size:13px; padding:0 16px; height:52px; }
    .strength-stat-card .ss-num { font-size:1.8rem; }
    .contact-modal-body { padding:32px 20px 24px; }
    .contact-modal-header h2 { font-size:20px; }
    .contact-modal-item { padding:14px 16px; gap:12px; }
    .cmi-icon { width:38px; height:38px; }
    .cmi-value { font-size:14px; }
    .contact-modal-footer { font-size:12px; text-align:center; }
}