/* ========================================
   WPS 365 制造业产业协同平台 - 专题页样式
   参照 special-wps 设计风格
   ======================================== */

/* ---------- CSS Variables ---------- */
:root {
    --wps-blue: #2b5cde;
    --wps-blue-dark: #1e42a6;
    --wps-purple: #6c63ff;
    --wps-gradient: linear-gradient(135deg, #2b5cde 0%, #6c63ff 100%);
    --wps-gradient-dark: linear-gradient(135deg, #1a1a2e 0%, #16213e 100%);
    --wps-dark: #1a1a2e;
    --wps-light: #f5f7fb;
    --wps-gray: #6c757d;
    --wps-border: #e8ecf1;
    --shadow-sm: 0 2px 12px rgba(0, 0, 0, 0.06);
    --shadow-md: 0 8px 30px rgba(0, 0, 0, 0.08);
    --shadow-lg: 0 16px 48px rgba(0, 0, 0, 0.12);
    --radius: 16px;
    --radius-sm: 10px;
}

/* ---------- Base ---------- */
* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC",
        "Hiragino Sans GB", "Microsoft YaHei", "Helvetica Neue", Helvetica, Arial, sans-serif;
    color: #333; overflow-x: hidden; line-height: 1.6;
}
.text-white-75 { color: rgba(255, 255, 255, 0.75) !important; }

/* ---------- Section Commons ---------- */
.section-badge {
    display: inline-block; padding: 6px 20px; border-radius: 50px;
    background: rgba(43, 92, 222, 0.1); color: var(--wps-blue);
    font-size: 0.875rem; font-weight: 600; margin-bottom: 16px; letter-spacing: 1px;
}
.section-badge.badge-light { background: rgba(255, 255, 255, 0.15); color: #fff; }
.section-badge.badge-ai {
    background: linear-gradient(135deg, rgba(108, 99, 255, 0.15), rgba(43, 92, 222, 0.15));
    color: var(--wps-purple);
}
.section-title { font-size: 2.5rem; font-weight: 800; color: var(--wps-dark); margin-bottom: 12px; }
.section-desc { font-size: 1.1rem; color: var(--wps-gray); max-width: 600px; margin: 0 auto; }
.brand-wps {
    background: var(--wps-gradient); -webkit-background-clip: text;
    -webkit-text-fill-color: transparent; background-clip: text; font-weight: 800;
}

/* ---------- Navbar ---------- */
.navbar {
    padding: 12px 0; transition: all 0.3s ease;
    background: transparent; z-index: 1050;
}
.navbar.scrolled {
    background: rgba(26, 26, 46, 0.95) !important; backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px); box-shadow: 0 2px 20px rgba(0, 0, 0, 0.2);
    padding: 8px 0;
}
.brand-icon {
    display: inline-flex; align-items: center; justify-content: center;
    width: 32px; height: 32px; background: var(--wps-blue);
    color: #fff; border-radius: 8px; font-weight: 700; font-size: 16px; margin-right: 6px;
}
.brand-icon-sm { width: 24px; height: 24px; font-size: 12px; border-radius: 6px; }
.nav-link {
    color: rgba(255, 255, 255, 0.75) !important; font-weight: 500;
    font-size: 14px; padding: 8px 16px !important;
    transition: color 0.3s ease;
}
.nav-link:hover, .nav-link.active { color: #fff !important; }
.nav-cta { border-radius: 20px !important; font-weight: 600; font-size: 13px !important; }

/* ---------- Hero Section ---------- */
.hero-section {
    min-height: 100vh; background: var(--wps-gradient); color: #fff;
    padding-top: 100px; position: relative; overflow: hidden;
}
.hero-particles { position: absolute; inset: 0; overflow: hidden; pointer-events: none; }
.hero-section::before {
    content: ""; position: absolute; top: -40%; right: -15%;
    width: 700px; height: 700px; background: rgba(255, 255, 255, 0.04);
    border-radius: 50%; animation: floatBubble 8s ease-in-out infinite;
}
.hero-section::after {
    content: ""; position: absolute; bottom: -25%; left: -8%;
    width: 500px; height: 500px; background: rgba(255, 255, 255, 0.03);
    border-radius: 50%; animation: floatBubble 10s ease-in-out infinite reverse;
}
@keyframes floatBubble {
    0%, 100% { transform: translate(0, 0); }
    50% { transform: translate(30px, -30px); }
}
.hero-badge {
    display: inline-block; padding: 8px 20px;
    background: rgba(255, 255, 255, 0.15); border: 1px solid rgba(255, 255, 255, 0.25);
    border-radius: 50px; font-size: 0.875rem; font-weight: 500; backdrop-filter: blur(4px);
}
.hero-section .display-3 { font-weight: 800; line-height: 1.15; letter-spacing: -0.02em; }
.btn-hero-primary {
    background: #fff; color: var(--wps-blue); border: none; font-weight: 600;
    padding: 14px 36px; border-radius: 50px; transition: all 0.3s ease;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.15);
}
.btn-hero-primary:hover {
    transform: translateY(-3px); box-shadow: 0 8px 30px rgba(0, 0, 0, 0.25);
    color: var(--wps-blue-dark); background: #fff;
}
.btn-hero-outline {
    background: transparent; color: #fff; border: 2px solid rgba(255, 255, 255, 0.5);
    font-weight: 600; padding: 12px 36px; border-radius: 50px; transition: all 0.3s ease;
}
.btn-hero-outline:hover {
    background: rgba(255, 255, 255, 0.15); border-color: #fff; color: #fff;
    transform: translateY(-3px);
}

/* Hero Visual */
.hero-visual { position: relative; width: 100%; height: 400px; }
.hero-center-circle {
    position: absolute; top: 50%; left: 50%; transform: translate(-50%, -50%);
    width: 140px; height: 140px; background: rgba(255, 255, 255, 0.2);
    border: 2px solid rgba(255, 255, 255, 0.3); border-radius: 50%;
    display: flex; align-items: center; justify-content: center;
    backdrop-filter: blur(8px); white-space: nowrap;
}
.hero-center-circle span { font-size: 1.1rem; font-weight: 800; text-align: center; line-height: 1.3; }
.hero-card {
    position: absolute; background: rgba(255, 255, 255, 0.12);
    border: 1px solid rgba(255, 255, 255, 0.2); border-radius: var(--radius-sm);
    padding: 16px 20px; display: flex; align-items: center; gap: 10px;
    backdrop-filter: blur(6px); font-size: 0.9rem; font-weight: 500;
    animation: floatCard 4s ease-in-out infinite; white-space: nowrap;
}
.hero-card i { font-size: 1.3rem; }
.hero-card-1 { top: 10%; left: 5%; animation-delay: 0s; }
.hero-card-2 { top: 5%; right: 5%; animation-delay: 1s; }
.hero-card-3 { bottom: 15%; left: 0; animation-delay: 2s; }
.hero-card-4 { bottom: 10%; right: 0; animation-delay: 3s; }
@keyframes floatCard {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-12px); }
}

/* ---------- About Section ---------- */
.about-section { padding: 100px 0; background: #fff; }
.stat-card {
    padding: 30px 20px; border-radius: var(--radius); background: var(--wps-light);
    border: 1px solid var(--wps-border); transition: all 0.3s ease; height: 100%;
}
.stat-card:hover {
    transform: translateY(-5px); box-shadow: var(--shadow-md);
    border-color: rgba(43, 92, 222, 0.2);
}
.stat-number {
    font-size: 2.25rem; font-weight: 800; background: var(--wps-gradient);
    -webkit-background-clip: text; -webkit-text-fill-color: transparent;
    background-clip: text; line-height: 1.2; margin-bottom: 4px;
}
.stat-label { font-size: 1rem; font-weight: 600; color: var(--wps-dark); margin-bottom: 4px; }
.stat-desc { font-size: 0.8rem; color: var(--wps-gray); }

/* ---------- WPS 365 Section ---------- */
.wps365-section {
    padding: 100px 0; background: var(--wps-gradient-dark); position: relative;
}
.wps-part-card {
    background: rgba(255, 255, 255, 0.06); border: 1px solid rgba(255, 255, 255, 0.12);
    border-radius: var(--radius); padding: 32px 28px; height: 100%;
    color: #fff; transition: all 0.3s ease;
}
.wps-part-card:hover {
    background: rgba(255, 255, 255, 0.1); transform: translateY(-5px);
    box-shadow: 0 16px 40px rgba(0, 0, 0, 0.2);
}
.wps-part-card.highlight {
    background: rgba(108, 99, 255, 0.15); border-color: rgba(108, 99, 255, 0.3);
}
.part-number {
    display: inline-block; padding: 4px 14px; background: rgba(255, 255, 255, 0.1);
    border-radius: 50px; font-size: 0.75rem; font-weight: 700;
    letter-spacing: 1px; text-transform: uppercase; margin-bottom: 16px;
}
.wps-part-card h4 { font-weight: 700; margin-bottom: 12px; font-size: 1.35rem; }
.wps-part-card p { color: rgba(255, 255, 255, 0.7); font-size: 0.9rem; margin-bottom: 20px; }
.part-list { list-style: none; padding: 0; margin: 0; }
.part-list li {
    padding: 6px 0; font-size: 0.875rem; color: rgba(255, 255, 255, 0.8);
    border-bottom: 1px solid rgba(255, 255, 255, 0.06);
}
.part-list li::before { content: "\2713"; margin-right: 8px; color: #6c63ff; font-weight: 700; }
.part-list li:last-child { border-bottom: none; }

/* ---------- Blueprint Section ---------- */
.blueprint-section { padding: 100px 0; background: #fff; }
.blueprint-arch { max-width: 960px; margin: 0 auto; }
.bp-layer { border-radius: var(--radius); padding: 32px; position: relative; }
.bp-layer-top {
    background: linear-gradient(135deg, rgba(43, 92, 222, 0.06) 0%, rgba(108, 99, 255, 0.06) 100%);
    border: 1px solid rgba(43, 92, 222, 0.12);
}
.bp-layer-mid { background: var(--wps-light); border: 1px solid var(--wps-border); }
.bp-layer-bottom {
    background: linear-gradient(135deg, rgba(26, 26, 46, 0.04) 0%, rgba(22, 33, 62, 0.06) 100%);
    border: 1px solid rgba(26, 26, 46, 0.1);
}
.bp-layer-label {
    display: inline-block; padding: 4px 16px; background: var(--wps-gradient);
    color: #fff; border-radius: 50px; font-size: 0.8rem; font-weight: 600; margin-bottom: 20px;
}
.bp-item {
    background: #fff; border: 1px solid var(--wps-border); border-radius: var(--radius-sm);
    padding: 14px 16px; font-size: 0.85rem; font-weight: 500; color: var(--wps-dark);
    transition: all 0.3s ease; display: flex; align-items: center; gap: 8px;
}
.bp-item:hover { border-color: var(--wps-blue); box-shadow: var(--shadow-sm); transform: translateY(-2px); }
.bp-item i { color: var(--wps-blue); font-size: 1rem; min-width: 18px; }
.bp-connector { text-align: center; padding: 16px 0; font-size: 1.5rem; color: var(--wps-blue); opacity: 0.4; }
.bp-product-card {
    background: #fff; border: 1px solid var(--wps-border); border-radius: var(--radius);
    padding: 28px 20px; text-align: center; height: 100%;
    transition: all 0.3s ease; position: relative; overflow: hidden;
}
.bp-product-card::before {
    content: ""; position: absolute; top: 0; left: 0; right: 0; height: 4px;
    border-radius: 16px 16px 0 0;
}
.bp-product-1::before { background: var(--wps-blue); }
.bp-product-2::before { background: var(--wps-purple); }
.bp-product-3::before { background: linear-gradient(90deg, var(--wps-blue), var(--wps-purple)); }
.bp-product-card:hover { transform: translateY(-5px); box-shadow: var(--shadow-md); }
.bp-product-icon {
    width: 56px; height: 56px; background: var(--wps-gradient); border-radius: 14px;
    display: inline-flex; align-items: center; justify-content: center;
    font-size: 1.3rem; color: #fff; margin-bottom: 14px;
}
.bp-product-card h6 { font-weight: 700; color: var(--wps-dark); margin-bottom: 8px; }
.bp-product-card p { font-size: 0.8rem; color: var(--wps-gray); margin-bottom: 0; line-height: 1.6; }
.bp-systems { display: flex; flex-wrap: wrap; gap: 10px; justify-content: center; }
.bp-sys-tag {
    display: inline-flex; align-items: center; justify-content: center;
    min-width: 64px; padding: 10px 20px; background: #fff;
    border: 1px solid var(--wps-border); border-radius: var(--radius-sm);
    font-size: 0.9rem; font-weight: 700; color: var(--wps-dark); transition: all 0.3s ease;
}
.bp-sys-tag:hover { border-color: var(--wps-blue); color: var(--wps-blue); transform: translateY(-2px); box-shadow: var(--shadow-sm); }

/* ---------- Platform Section ---------- */
.platform-section { padding: 100px 0; background: var(--wps-light); }
.platform-card {
    background: #fff; border-radius: var(--radius); padding: 36px 28px;
    height: 100%; box-shadow: var(--shadow-sm); border: 1px solid var(--wps-border);
    transition: all 0.3s ease;
}
.platform-card:hover {
    transform: translateY(-6px); box-shadow: var(--shadow-lg);
    border-color: rgba(43, 92, 222, 0.15);
}
.platform-icon {
    width: 64px; height: 64px; background: var(--wps-gradient); border-radius: 16px;
    display: flex; align-items: center; justify-content: center;
    font-size: 1.5rem; color: #fff; margin-bottom: 20px;
}
.platform-card h5 { font-weight: 700; margin-bottom: 12px; color: var(--wps-dark); }
.platform-card p { font-size: 0.9rem; color: var(--wps-gray); line-height: 1.7; }

/* Service Cards */
.service-card {
    background: #fff; border-radius: var(--radius-sm); padding: 24px; height: 100%;
    border: 1px solid var(--wps-border); transition: all 0.3s ease;
    display: flex; gap: 16px; align-items: flex-start;
}
.service-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-md); }
.service-icon {
    width: 48px; height: 48px; min-width: 48px;
    background: rgba(43, 92, 222, 0.08); border-radius: 12px;
    display: flex; align-items: center; justify-content: center;
    font-size: 1.2rem; color: var(--wps-blue);
}
.service-card h6 { font-weight: 700; color: var(--wps-dark); margin-bottom: 6px; font-size: 0.95rem; }
.service-card p { font-size: 0.85rem; color: var(--wps-gray); margin-bottom: 0; line-height: 1.6; }

/* Open Platform Value */
.open-platform-value {
    background: #fff; border: 1px solid var(--wps-border); border-radius: var(--radius);
    padding: 40px; box-shadow: var(--shadow-sm); position: relative; overflow: hidden;
}
.open-platform-value::before {
    content: ""; position: absolute; top: 0; left: 0; width: 5px; height: 100%;
    background: var(--wps-gradient); border-radius: 16px 0 0 16px;
}
.op-header { padding-left: 8px; }
.op-icon-wrap {
    width: 64px; height: 64px; background: var(--wps-gradient); border-radius: 16px;
    display: flex; align-items: center; justify-content: center;
    font-size: 1.5rem; color: #fff; margin-bottom: 16px;
}
.op-header h3 { color: var(--wps-dark); margin-bottom: 8px; }
.op-header p { font-size: 0.9rem; }
.op-value-item {
    background: var(--wps-light); border: 1px solid var(--wps-border);
    border-radius: var(--radius-sm); padding: 24px; height: 100%; transition: all 0.3s ease;
}
.op-value-item:hover {
    transform: translateY(-4px); box-shadow: var(--shadow-md);
    border-color: rgba(43, 92, 222, 0.2);
}
.op-value-num {
    display: inline-block; width: 36px; height: 36px; background: var(--wps-gradient);
    color: #fff; border-radius: 10px; font-size: 0.85rem; font-weight: 800;
    line-height: 36px; text-align: center; margin-bottom: 14px;
}
.op-value-item h6 { font-weight: 700; color: var(--wps-dark); margin-bottom: 8px; font-size: 0.95rem; }
.op-value-item p { font-size: 0.82rem; color: var(--wps-gray); margin-bottom: 0; line-height: 1.65; }

/* ---------- AI Section ---------- */
.ai-section { padding: 100px 0; background: #fff; }
.ai-advantage {
    text-align: center; padding: 32px 24px; border-radius: var(--radius);
    background: var(--wps-light); border: 1px solid var(--wps-border);
    height: 100%; transition: all 0.3s ease;
}
.ai-advantage:hover { transform: translateY(-5px); box-shadow: var(--shadow-md); }
.ai-adv-icon {
    width: 64px; height: 64px; background: var(--wps-gradient); border-radius: 16px;
    display: inline-flex; align-items: center; justify-content: center;
    font-size: 1.5rem; color: #fff; margin-bottom: 16px;
}
.ai-advantage h6 { font-weight: 700; color: var(--wps-dark); margin-bottom: 8px; }
.ai-advantage p { font-size: 0.875rem; color: var(--wps-gray); margin-bottom: 0; }

/* AI Product Matrix */
.ai-matrix { background: var(--wps-light); border-radius: var(--radius); padding: 32px; }
.ai-product-card {
    background: #fff; border-radius: var(--radius-sm); padding: 24px 16px;
    text-align: center; border: 1px solid var(--wps-border); height: 100%;
    transition: all 0.3s ease;
}
.ai-product-card:hover {
    transform: translateY(-4px); box-shadow: var(--shadow-md); border-color: var(--wps-blue);
}
.ai-product-card i { font-size: 2rem; color: var(--wps-blue); display: block; margin-bottom: 12px; }
.ai-product-card span { font-size: 0.85rem; font-weight: 600; color: var(--wps-dark); }

/* Knowledge Architecture */
.knowledge-arch {
    background: var(--wps-light); border-radius: var(--radius); padding: 40px 32px;
    border: 1px solid var(--wps-border);
}
.knowledge-arch h4 { color: var(--wps-dark); }
.knowledge-layer {
    background: #fff; border-radius: var(--radius-sm); padding: 24px; height: 100%;
    border: 1px solid var(--wps-border); transition: all 0.3s ease;
    position: relative; overflow: hidden;
}
.knowledge-layer:hover { transform: translateY(-4px); box-shadow: var(--shadow-md); }
.layer-tag {
    display: inline-block; padding: 2px 12px; background: var(--wps-gradient);
    color: #fff; border-radius: 50px; font-size: 0.75rem; font-weight: 700; margin-bottom: 12px;
}
.knowledge-layer h6 { font-weight: 700; color: var(--wps-dark); margin-bottom: 8px; }
.knowledge-layer p { font-size: 0.85rem; color: var(--wps-gray); margin-bottom: 0; }

/* Digital Worker */
.digital-worker {
    background: var(--wps-light); border-radius: var(--radius); padding: 40px;
    border: 1px solid var(--wps-border);
}
.dw-badge {
    display: inline-block; padding: 6px 16px; background: var(--wps-gradient);
    color: #fff; border-radius: 50px; font-size: 0.8rem; font-weight: 600; margin-bottom: 16px;
}
.dw-feature {
    background: #fff; border-radius: var(--radius-sm); padding: 24px 16px;
    text-align: center; border: 1px solid var(--wps-border); transition: all 0.3s ease;
}
.dw-feature:hover { transform: translateY(-4px); box-shadow: var(--shadow-md); }
.dw-feature i { font-size: 2rem; color: var(--wps-blue); display: block; margin-bottom: 10px; }
.dw-feature span { font-size: 0.85rem; font-weight: 600; color: var(--wps-dark); }

/* ---------- Value Section ---------- */
.value-section { padding: 100px 0; background: var(--wps-gradient); }
.value-card {
    background: rgba(255, 255, 255, 0.1); border: 1px solid rgba(255, 255, 255, 0.15);
    border-radius: var(--radius); padding: 32px 24px; text-align: center;
    color: #fff; height: 100%; transition: all 0.3s ease; backdrop-filter: blur(4px);
}
.value-card:hover { background: rgba(255, 255, 255, 0.18); transform: translateY(-5px); }
.value-icon { font-size: 2.5rem; margin-bottom: 16px; }
.value-card h5 { font-weight: 700; margin-bottom: 8px; }
.value-card p { font-size: 0.9rem; color: rgba(255, 255, 255, 0.8); margin-bottom: 0; }

/* ---------- Business Section ---------- */
.business-section { padding: 100px 0; background: #fff; }
.biz-card {
    background: var(--wps-light); border: 1px solid var(--wps-border);
    border-radius: var(--radius); padding: 32px; height: 100%; transition: all 0.3s ease;
}
.biz-card:hover {
    transform: translateY(-5px); box-shadow: var(--shadow-md);
    border-color: rgba(43, 92, 222, 0.2);
}
.biz-card-header { display: flex; align-items: center; gap: 12px; margin-bottom: 16px; }
.biz-card-header i { font-size: 1.5rem; color: var(--wps-blue); }
.biz-card-header h5 { font-weight: 700; margin-bottom: 0; color: var(--wps-dark); }
.biz-card p { font-size: 0.9rem; color: var(--wps-gray); line-height: 1.7; margin-bottom: 16px; }
.biz-tags { display: flex; flex-wrap: wrap; gap: 8px; }
.biz-tags span {
    display: inline-block; padding: 4px 14px; background: rgba(43, 92, 222, 0.08);
    color: var(--wps-blue); border-radius: 50px; font-size: 0.8rem; font-weight: 500;
}

/* ---------- Security Section ---------- */
.security-section { padding: 100px 0; background: var(--wps-gradient-dark); }
.cert-card {
    background: rgba(255, 255, 255, 0.06); border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: var(--radius); padding: 32px 24px; text-align: center;
    color: #fff; height: 100%; transition: all 0.3s ease;
}
.cert-card:hover { background: rgba(255, 255, 255, 0.1); transform: translateY(-5px); }
.cert-card i { font-size: 2.5rem; color: var(--wps-purple); display: block; margin-bottom: 16px; }
.cert-card h6 { font-weight: 700; margin-bottom: 8px; }
.cert-card p { font-size: 0.85rem; color: rgba(255, 255, 255, 0.65); margin-bottom: 0; }

/* Delivery Cards */
.delivery-card {
    background: rgba(255, 255, 255, 0.06); border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: var(--radius); padding: 32px 24px; text-align: center;
    color: #fff; height: 100%; transition: all 0.3s ease;
}
.delivery-card:hover { background: rgba(255, 255, 255, 0.1); transform: translateY(-5px); }
.delivery-icon {
    width: 64px; height: 64px; background: rgba(108, 99, 255, 0.2); border-radius: 50%;
    display: inline-flex; align-items: center; justify-content: center;
    font-size: 1.5rem; color: #fff; margin-bottom: 16px;
}
.delivery-card h6 { font-weight: 700; margin-bottom: 8px; }
.delivery-card p { font-size: 0.85rem; color: rgba(255, 255, 255, 0.65); margin-bottom: 0; }

/* ---------- Global Section ---------- */
.global-section { padding: 100px 0; background: var(--wps-light); }
.global-card {
    background: #fff; border: 1px solid var(--wps-border); border-radius: var(--radius);
    padding: 32px 24px; text-align: center; height: 100%; transition: all 0.3s ease;
}
.global-card:hover { transform: translateY(-5px); box-shadow: var(--shadow-md); }
.global-region {
    font-size: 1.5rem; font-weight: 800; color: var(--wps-blue); margin-bottom: 12px;
    width: 56px; height: 56px; background: rgba(43, 92, 222, 0.08); border-radius: 50%;
    display: inline-flex; align-items: center; justify-content: center;
}
.global-card h6 { font-weight: 700; color: var(--wps-dark); margin-bottom: 8px; }
.global-card p { font-size: 0.85rem; color: var(--wps-gray); margin-bottom: 0; }
.global-feature {
    display: inline-flex; align-items: center; gap: 6px; padding: 10px 20px;
    background: #fff; border: 1px solid var(--wps-border); border-radius: 50px;
    font-size: 0.85rem; font-weight: 500; color: var(--wps-dark);
}
.global-feature i { color: var(--wps-blue); }

/* ---------- Lead Section (留资) ---------- */
.lead-section {
    background: var(--wps-gradient-dark); padding: 100px 0;
    position: relative; overflow: hidden;
}
.lead-section::before {
    content: ''; position: absolute; inset: 0;
    background: radial-gradient(circle at 20% 50%, rgba(43, 92, 222, 0.3), transparent 60%),
                radial-gradient(circle at 80% 80%, rgba(108, 99, 255, 0.2), transparent 50%);
}
.lead-info { position: relative; z-index: 1; }
.lead-title {
    color: #fff; font-size: 2.2rem; font-weight: 900; line-height: 1.3; margin-bottom: 16px;
}
.lead-desc {
    color: rgba(255, 255, 255, 0.75); font-size: 15px; line-height: 1.8; margin-bottom: 28px;
}
.lead-highlights { margin-bottom: 32px; }
.lead-highlight-item {
    display: flex; align-items: center; gap: 10px;
    color: rgba(255, 255, 255, 0.9); font-size: 14px; margin-bottom: 12px;
}
.lead-highlight-item i { color: #00e676; font-size: 18px; flex-shrink: 0; }
.lead-form-wrapper {
    position: relative; z-index: 1; background: #fff;
    border-radius: var(--radius); padding: 40px;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
}
.lead-form-header { margin-bottom: 24px; }
.lead-form-header h4 { font-weight: 800; margin-bottom: 4px; color: var(--wps-dark); }
.lead-form-header p { color: var(--wps-gray); font-size: 14px; margin: 0; }
.lead-form .form-label { font-size: 13px; font-weight: 600; color: var(--wps-gray); margin-bottom: 4px; }
.lead-form .form-control, .lead-form .form-select {
    border-radius: 10px; padding: 10px 14px; font-size: 14px;
    border-color: var(--wps-border); transition: all 0.3s;
}
.lead-form .form-control:focus, .lead-form .form-select:focus {
    border-color: var(--wps-blue); box-shadow: 0 0 0 3px rgba(43, 92, 222, 0.15);
}
.btn-submit {
    border-radius: 12px !important; padding: 14px !important;
    font-weight: 700; font-size: 16px !important;
    background: var(--wps-gradient) !important; border: none !important; color: #fff; transition: all 0.3s;
}
.btn-submit:hover {
    transform: translateY(-2px); box-shadow: 0 6px 24px rgba(43, 92, 222, 0.4); color: #fff;
}
.btn-submit:active { transform: translateY(0); }
.btn-submit.submitting { pointer-events: none; opacity: 0.7; }
.spin-icon { display: inline-block; animation: spin 1s linear infinite; }
@keyframes spin { 0% { transform: rotate(0deg); } 100% { transform: rotate(360deg); } }

/* Success State */
.lead-success { text-align: center; padding: 60px 20px; }
.lead-success .success-icon {
    font-size: 64px; color: #00c853; margin-bottom: 20px; animation: successBounce 0.6s ease;
}
@keyframes successBounce {
    0% { transform: scale(0); } 50% { transform: scale(1.2); } 100% { transform: scale(1); }
}
.lead-success h4 { font-weight: 800; color: var(--wps-dark); margin-bottom: 10px; }
.lead-success p { color: var(--wps-gray); font-size: 15px; }

/* ---------- Footer ---------- */
.site-footer {
    background: var(--wps-dark); color: #fff; padding: 48px 0 24px;
}
.site-footer h6 { font-weight: 700; margin-bottom: 16px; font-size: 14px; }
.footer-links { list-style: none; padding: 0; margin: 0; }
.footer-links li { margin-bottom: 8px; }
.footer-links a {
    color: rgba(255, 255, 255, 0.5); text-decoration: none; font-size: 13px; transition: color 0.3s;
}
.footer-links a:hover { color: #fff; }
.social-links { display: flex; gap: 12px; }
.social-links a {
    width: 36px; height: 36px; background: rgba(255, 255, 255, 0.1);
    border-radius: 50%; display: flex; align-items: center; justify-content: center;
    color: #fff; text-decoration: none; transition: all 0.3s; position: relative;
}
.social-links a:hover { background: var(--wps-blue); }
.footer-phone { color: #fff; font-size: 1.25rem; font-weight: 700; margin-bottom: 6px; }
.wechat-trigger .wechat-qrcode {
    display: none; position: absolute; bottom: 100%; left: 50%; transform: translateX(-50%);
    width: 140px; height: auto; border-radius: 8px; box-shadow: 0 4px 20px rgba(0,0,0,0.3);
    margin-bottom: 10px; background: #fff; padding: 4px;
}
.wechat-trigger:hover .wechat-qrcode { display: block; }

/* ---------- Back to Top ---------- */
.back-to-top {
    position: fixed; bottom: 30px; right: 30px; width: 48px; height: 48px;
    background: var(--wps-gradient); color: #fff; border-radius: 50%;
    display: flex; align-items: center; justify-content: center; font-size: 1.2rem;
    text-decoration: none; opacity: 0; visibility: hidden; transition: all 0.3s ease;
    box-shadow: 0 4px 16px rgba(43, 92, 222, 0.3); z-index: 1040;
}
.back-to-top.visible { opacity: 1; visibility: visible; }
.back-to-top:hover {
    transform: translateY(-3px); color: #fff;
    box-shadow: 0 8px 24px rgba(43, 92, 222, 0.4);
}

/* ---------- Responsive ---------- */
@media (max-width: 991.98px) {
    .hero-section { text-align: center; padding-top: 120px; }
    .hero-section .display-3 { font-size: 2.5rem; }
    .hero-section .display-6 { font-size: 1.3rem; }
    .hero-btns { display: flex; flex-direction: column; align-items: center; gap: 12px; }
    .hero-btns .me-3 { margin-right: 0 !important; }
    .section-title { font-size: 2rem; }
    .lead-title { font-size: 1.6rem; }
    .lead-form-wrapper { padding: 24px; }
    .nav-link { margin-left: 0; }
}
@media (max-width: 575.98px) {
    .hero-section .display-3 { font-size: 2rem; }
    .section-title { font-size: 1.6rem; }
    .about-section, .wps365-section, .blueprint-section, .platform-section, .ai-section,
    .value-section, .business-section, .security-section, .global-section,
    .lead-section { padding: 60px 0; }
    .stat-number { font-size: 1.75rem; }
    .knowledge-arch, .digital-worker, .open-platform-value { padding: 24px 16px; }
    .ai-matrix { padding: 20px 16px; }
    .bp-layer { padding: 20px 16px; }
    .bp-item { font-size: 0.78rem; padding: 10px 12px; }
}