/* ================================================
   WhizSmart - Apple Style Design System
   ================================================ */

:root {
    --primary: #0071e3;
    --primary-light: #2997ff;
    --primary-dark: #0077ed;
    --secondary: #1d1d1f;
    --text: #1d1d1f;
    --text-secondary: #86868b;
    --bg: #ffffff;
    --bg-secondary: #f5f5f7;
    --bg-tertiary: #fbfbfd;
    --border: #d2d2d7;
    --card-shadow: 0 2px 12px rgba(0,0,0,0.06);
    --card-shadow-hover: 0 8px 32px rgba(0,0,0,0.1);
    --gradient: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    --gradient-hero: linear-gradient(135deg, #0071e3 0%, #5a5ce6 50%, #764ba2 100%);
    --gradient-light: linear-gradient(135deg, rgba(0,113,227,0.05) 0%, rgba(90,92,230,0.08) 100%);
    --shadow-sm: 0 2px 10px rgba(0,0,0,0.04);
    --shadow-md: 0 8px 30px rgba(0,0,0,0.08);
    --shadow-lg: 0 20px 60px rgba(0,0,0,0.1);
    --shadow-glow: 0 0 60px rgba(0,113,227,0.15);
    --transition: all 0.35s cubic-bezier(0.25, 0.1, 0.25, 1);
    --transition-smooth: all 0.5s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-bounce: all 0.4s cubic-bezier(0.34, 1.56, 0.64, 1);
    --radius-card: 24px;
    --radius-btn: 980px;
}
* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
    font-family: -apple-system, BlinkMacSystemFont, 'SF Pro Display', 'Helvetica Neue', Arial, sans-serif;
    color: var(--text);
    line-height: 1.6;
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    text-rendering: optimizeLegibility;
}
a { text-decoration: none; color: inherit; }
ul { list-style: none; }
img { max-width: 100%; display: block; }

/* ================================================
   Typography Enhancements
   ================================================ */
h1, h2, h3, h4, h5, h6 {
    font-weight: 600;
    letter-spacing: -0.02em;
    line-height: 1.2;
}
p { line-height: 1.7; }

/* ================================================
   Buttons - Premium Apple Style
   ================================================ */
.btn {
    display: inline-flex; align-items: center; justify-content: center; gap: 8px;
    padding: 14px 28px; border-radius: var(--radius-btn);
    font-size: 15px; font-weight: 500; font-weight: 500; cursor: pointer;
    border: none; font-family: inherit;
    position: relative; overflow: hidden;
    transition: transform 0.2s cubic-bezier(0.34, 1.56, 0.64, 1),
                box-shadow 0.3s cubic-bezier(0.4, 0, 0.2, 1),
                background-color 0.2s ease;
}
.btn::before {
    content: ''; position: absolute; inset: 0;
    background: linear-gradient(180deg, rgba(255,255,255,0.12) 0%, transparent 100%);
    opacity: 0; transition: opacity 0.25s;
}
.btn:hover::before { opacity: 1; }
.btn:active { transform: scale(0.97); }
.btn-primary {
    background: var(--primary); color: white;
    box-shadow: 0 4px 16px rgba(0,113,227,0.25), 0 1px 2px rgba(0,0,0,0.05) inset;
}
.btn-primary:hover {
    background: var(--primary-dark);
    transform: translateY(-2px) scale(1.02);
    box-shadow: 0 8px 24px rgba(0,113,227,0.35), 0 2px 4px rgba(0,0,0,0.08) inset;
}
.btn-secondary {
    background: transparent; color: var(--primary);
    border: 1.5px solid var(--primary);
}
.btn-secondary:hover {
    background: var(--primary); color: white;
    transform: translateY(-2px);
    box-shadow: 0 8px 24px rgba(0,113,227,0.2);
}
.btn-full { width: 100%; }
.btn-large { padding: 17px 36px; font-size: 16px; letter-spacing: 0.01em; }

/* ================================================
   Navigation - Enhanced Frosted Glass
   ================================================ */
.navbar {
    position: fixed; top: 0; left: 0; right: 0; z-index: 1000;
    background: rgba(255,255,255,0.72);
    backdrop-filter: saturate(180%) blur(28px);
    -webkit-backdrop-filter: saturate(180%) blur(28px);
    border-bottom: 0.5px solid rgba(0,0,0,0.06);
    transition: background-color 0.3s ease, box-shadow 0.3s ease;
}
.navbar.scrolled {
    background: rgba(255,255,255,0.95);
    box-shadow: 0 1px 20px rgba(0,0,0,0.06);
    border-bottom: 0.5px solid rgba(0,0,0,0.04);
}
.nav-container {
    max-width: 1200px; margin: 0 auto; padding: 0 24px;
    height: 52px; display: flex; align-items: center; justify-content: space-between;
}
.logo {
    display: flex; align-items: center; gap: 10px;
    transition: transform 0.3s cubic-bezier(0.34, 1.56, 0.64, 1);
}
.logo:hover { transform: scale(1.03); }
.logo-icon { font-size: 26px; transition: transform 0.3s ease; }
.logo:hover .logo-icon { transform: rotate(-5deg); }
.logo-text-group { display: flex; flex-direction: column; line-height: 1.2; }
.logo-text-en { font-size: 16px; font-weight: 600; color: var(--secondary); letter-spacing: -0.3px; }
.logo-text-zh { font-size: 10px; color: var(--text-secondary); letter-spacing: 0.5px; }
.nav-links { display: flex; gap: 32px; align-items: center; }
.nav-link {
    font-size: 13px; color: var(--text); opacity: 0.75;
    transition: opacity 0.2s ease, color 0.2s ease; position: relative; font-weight: 500;
}

/* ================================================
   Dropdown Menu - Premium Animation
   ================================================ */
.has-dropdown {
    position: relative;
}

.nav-dropdown-trigger {
    cursor: pointer;
}

.dropdown-arrow {
    display: inline-flex;
    align-items: center;
    margin-left: 4px;
    font-size: 10px;
    color: var(--text-secondary);
    transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1), color 0.2s ease;
    vertical-align: middle;
}

.has-dropdown:hover .dropdown-arrow {
    transform: rotate(180deg);
    color: var(--primary);
}

.dropdown-menu {
    position: absolute;
    top: calc(100% + 12px);
    left: 50%;
    transform: translateX(-50%) scaleY(0.95) translateY(-10px);
    min-width: 280px;
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
    z-index: 1001;
    transition: transform 0.2s cubic-bezier(0.16, 1, 0.3, 1),
                opacity 0.15s ease,
                visibility 0.2s ease;
}

.has-dropdown:hover .dropdown-menu {
    transform: translateX(-50%) scaleY(1) translateY(0);
    opacity: 1;
    visibility: visible;
    pointer-events: auto;
}

.dropdown-inner {
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: saturate(180%) blur(20px);
    -webkit-backdrop-filter: saturate(180%) blur(20px);
    border-radius: 16px;
    padding: 8px;
    box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.18),
                0 0 0 1px rgba(0, 0, 0, 0.04);
    transform: translateY(-6px);
    transition: transform 0.25s cubic-bezier(0.16, 1, 0.3, 1);
}

.has-dropdown:hover .dropdown-inner {
    transform: translateY(0);
}

.dropdown-item {
    display: flex;
    align-items: center;
    gap: 14px;
    padding: 12px 14px;
    border-radius: 10px;
    text-decoration: none;
    transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
    overflow: hidden;
}

.dropdown-item::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0;
    bottom: 0;
    width: 3px;
    background: var(--primary);
    border-radius: 0 2px 2px 0;
    opacity: 0;
    transition: opacity 0.25s ease;
}

.dropdown-item:hover {
    background: linear-gradient(90deg, rgba(0, 113, 227, 0.06) 0%, rgba(90, 92, 230, 0.03) 100%);
}

.dropdown-item:hover::before {
    opacity: 1;
}

.dropdown-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 36px;
    height: 36px;
    background: linear-gradient(135deg, rgba(0, 113, 227, 0.08) 0%, rgba(90, 92, 230, 0.06) 100%);
    border-radius: 10px;
    font-size: 15px;
    color: var(--primary);
    transition: all 0.25s ease;
    flex-shrink: 0;
}

.dropdown-item:hover .dropdown-icon {
    background: linear-gradient(135deg, var(--primary) 0%, #5a5ce6 100%);
    color: white;
    transform: scale(1.05);
    box-shadow: 0 4px 12px rgba(0, 113, 227, 0.3);
}

.dropdown-text {
    display: flex;
    flex-direction: column;
    gap: 2px;
}

.dropdown-title {
    font-size: 13px;
    font-weight: 600;
    color: var(--text);
    transition: color 0.2s ease;
}

.dropdown-item:hover .dropdown-title {
    color: #ffffff;
}

.dropdown-item:hover .dropdown-desc {
    color: rgba(255,255,255,0.8);
}

.dropdown-desc {
    font-size: 11px;
    color: var(--text-secondary);
    opacity: 0.8;
}

/* Dropdown entrance animation */
.has-dropdown .dropdown-menu {
    transition:
        opacity 0.35s cubic-bezier(0.4, 0, 0.2, 1),
        transform 0.35s cubic-bezier(0.34, 1.56, 0.64, 1),
        visibility 0.35s ease;
}

.has-dropdown .dropdown-inner {
    transform: translateY(-8px);
    transition: transform 0.35s cubic-bezier(0.34, 1.56, 0.64, 1);
}

.has-dropdown:hover .dropdown-inner {
    transform: translateY(0);
}

/* Staggered item animation */
.dropdown-item {
    opacity: 0;
    transform: translateX(-10px);
    transition:
        opacity 0.3s ease,
        transform 0.3s cubic-bezier(0.34, 1.56, 0.64, 1),
        background 0.25s ease;
}

.has-dropdown:hover .dropdown-item {
    opacity: 1;
    transform: translateX(0);
}

.has-dropdown:hover .dropdown-item:nth-child(1) { transition-delay: 0.05s; }
.has-dropdown:hover .dropdown-item:nth-child(2) { transition-delay: 0.08s; }
.has-dropdown:hover .dropdown-item:nth-child(3) { transition-delay: 0.11s; }
.has-dropdown:hover .dropdown-item:nth-child(4) { transition-delay: 0.14s; }
.has-dropdown:hover .dropdown-item:nth-child(5) { transition-delay: 0.17s; }
.has-dropdown:hover .dropdown-item:nth-child(6) { transition-delay: 0.20s; }
.nav-link::after {
    content: ''; position: absolute; bottom: -3px; left: 0;
    width: 0; height: 2px; background: var(--primary);
    transition: width 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    border-radius: 1px;
}
.nav-link:hover { opacity: 1; }
.nav-link:hover::after, .nav-link.active::after { width: 100%; }
.nav-link.active { opacity: 1; color: var(--primary); }
.nav-actions { display: flex; align-items: center; gap: 18px; }
.lang-selector { display: flex; align-items: center; gap: 6px; font-size: 12px; }
.lang-tag { color: var(--text-secondary); cursor: pointer; transition: var(--transition); font-weight: 500; }
.lang-tag.active { color: var(--text); font-weight: 600; }
.lang-tag:hover { color: var(--primary); }
.lang-divider { color: var(--border); }
.mobile-menu { display: none; background: none; border: none; font-size: 20px; cursor: pointer; color: var(--text); }

/* ================================================
   Hero - Apple Bright Style
   ================================================ */
.hero {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    text-align: center;
    padding: 100px 60px 80px;
    background: linear-gradient(180deg, #ffffff 0%, #f8f9ff 40%, #f0f4ff 100%);
    position: relative;
    overflow: hidden;
}

/* Subtle background gradient orbs */
.hero-bg-orbs {
    position: absolute; inset: 0; pointer-events: none; overflow: hidden;
}
.orb {
    position: absolute; border-radius: 50%;
    filter: blur(100px); opacity: 0.4;
}
.orb-1 {
    width: 700px; height: 700px;
    background: radial-gradient(circle, rgba(0,113,227,0.12), rgba(90,92,230,0.08));
    top: -200px; right: -150px;
    animation: orbFloat1 15s ease-in-out infinite;
}
.orb-2 {
    width: 500px; height: 500px;
    background: radial-gradient(circle, rgba(118,75,162,0.08), rgba(102,126,234,0.06));
    bottom: -150px; left: -100px;
    animation: orbFloat2 18s ease-in-out infinite;
}
.orb-3 {
    width: 300px; height: 300px;
    background: radial-gradient(circle, rgba(52,199,89,0.08), transparent);
    top: 40%; left: 30%;
    animation: orbFloat3 12s ease-in-out infinite;
}
@keyframes orbFloat1 {
    0%, 100% { transform: translate(0, 0) scale(1); }
    33% { transform: translate(-30px, 40px) scale(1.05); }
    66% { transform: translate(30px, -20px) scale(0.95); }
}
@keyframes orbFloat2 {
    0%, 100% { transform: translate(0, 0) scale(1); }
    33% { transform: translate(40px, -30px) scale(1.08); }
    66% { transform: translate(-20px, 40px) scale(0.92); }
}
@keyframes orbFloat3 {
    0%, 100% { transform: translate(0, 0) scale(1); opacity: 0.6; }
    50% { transform: translate(20px, -20px) scale(1.1); opacity: 0.8; }
}

/* Subtle gradient overlay */
.hero-bg-gradient {
    position: absolute; inset: 0; pointer-events: none;
    background:
        radial-gradient(ellipse at 80% 10%, rgba(0,113,227,0.08) 0%, transparent 50%),
        radial-gradient(ellipse at 20% 90%, rgba(118,75,162,0.06) 0%, transparent 40%);
}

.hero-content {
    position: relative; z-index: 2;
    max-width: 800px;
    width: 100%;
    display: flex;
    flex-direction: column;
    align-items: center;
}
.hero-eyebrow {
    display: inline-flex; align-items: center; gap: 8px;
    font-size: 16px; font-weight: 600;
    letter-spacing: 0.08em;
    color: var(--primary); margin-bottom: 20px;
    padding: 8px 18px;
    background: rgba(0,113,227,0.06);
    border: 1px solid rgba(0,113,227,0.1);
    border-radius: 980px;
    animation: fadeInUp 0.6s ease both;
}
.hero-eyebrow::before {
    content: '';
    width: 6px; height: 6px;
    background: var(--primary);
    border-radius: 50%;
    animation: pulse 2s ease-in-out infinite;
}
@keyframes pulse {
    0%, 100% { transform: scale(1); opacity: 1; }
    50% { transform: scale(1.2); opacity: 0.7; }
}
.hero-title {
    display: flex; flex-direction: column; gap: 2px;
    margin-bottom: 24px;
}
.title-line {
    font-size: clamp(48px, 6vw, 72px);
    font-weight: 700;
    color: var(--secondary);
    letter-spacing: -0.03em;
    line-height: 1.05;
    animation: fadeInUp 0.6s ease both;
}
.title-line:nth-child(1) { animation-delay: 0.1s; }
.title-line:nth-child(2) { animation-delay: 0.25s; }
.brand-name {
    font-size: clamp(56px, 8vw, 96px) !important;
    font-weight: 800 !important;
    background: linear-gradient(135deg, var(--primary) 0%, #5a5ce6);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}
.hero-tagline {
    font-size: 18px;
    color: var(--text-secondary);
    margin-bottom: 16px;
    font-weight: 500;
    letter-spacing: 0.02em;
    animation: fadeInUp 0.6s ease both;
    animation-delay: 0.35s;
}
.gradient-text {
    background: linear-gradient(135deg, #5a5ce6 0%, #764ba2 50%, #667eea 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}
.hero-desc {
    font-size: 17px;
    color: var(--text-secondary);
    margin-bottom: 40px;
    line-height: 1.7;
    animation: fadeInUp 0.6s ease both;
    animation-delay: 0.4s;
}
.hero-buttons {
    display: flex; gap: 16px; flex-wrap: wrap;
    animation: fadeInUp 0.6s ease both;
    animation-delay: 0.5s;
}
.hero-stats {
    display: flex; align-items: center; gap: 40px;
    margin-top: 56px;
    animation: fadeInUp 0.6s ease both;
    animation-delay: 0.7s;
}
.stat { text-align: left; }
.stat-num {
    font-size: 44px; font-weight: 700;
    color: var(--primary); display: inline;
    letter-spacing: -0.02em;
}
.stat-plus {
    font-size: 28px; font-weight: 600;
    color: var(--primary); opacity: 0.6;
    vertical-align: super;
}
.stat-label {
    display: block; font-size: 13px;
    color: var(--text-secondary);
    margin-top: 4px; font-weight: 500;
}
.stat-divider {
    width: 1px; height: 44px;
    background: linear-gradient(180deg, transparent, rgba(0,0,0,0.08), transparent);
}

/* Hero Visual - Locker Display - 隐藏，因为原版没有 */
.hero-visual-container {
    display: none;
}
.hero-locker-display {
    display: flex; flex-direction: column; align-items: center; gap: 24px;
    animation: fadeInUp 0.8s ease both;
    animation-delay: 0.3s;
}

.hero-product-label {
    display: flex; align-items: center; gap: 12px;
    background: rgba(255,255,255,0.9);
    border: 1px solid rgba(0,0,0,0.06);
    padding: 12px 20px; border-radius: 16px;
    backdrop-filter: blur(10px);
    box-shadow: 0 4px 16px rgba(0,0,0,0.06);
}
.label-icon { font-size: 24px; }
.label-text { display: flex; flex-direction: column; }
.label-name { font-size: 15px; font-weight: 600; color: var(--secondary); }
.label-model { font-size: 12px; color: var(--text-secondary); }

/* Scroll Hint */
.scroll-hint {
    display: flex; flex-direction: column; align-items: center; gap: 8px;
    padding-bottom: 20px;
    animation: fadeInUp 0.6s ease both;
    animation-delay: 1s;
}
.scroll-arrow {
    width: 32px; height: 32px;
    border: 1.5px solid rgba(0,113,227,0.2);
    border-radius: 50%;
    display: flex; align-items: center; justify-content: center;
    background: rgba(255,255,255,0.8);
    animation: scrollBounce 2s ease-in-out infinite;
}
.scroll-arrow i { font-size: 12px; color: var(--primary); opacity: 0.6; }
.scroll-hint span { font-size: 11px; color: var(--text-secondary); letter-spacing: 0.08em; font-weight: 500; }
@keyframes scrollBounce {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(8px); }
}

/* ================================================
   Animations - Smooth & Premium
   ================================================ */
@keyframes fadeInUp {
    from { opacity: 0; transform: translateY(24px); }
    to { opacity: 1; transform: translateY(0); }
}
@keyframes fadeInScale {
    from { opacity: 0; transform: scale(0.95); }
    to { opacity: 1; transform: scale(1); }
}
@keyframes float {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-10px); }
}
@keyframes shimmer {
    0% { background-position: -200% 0; }
    100% { background-position: 200% 0; }
}
.animate-in {
    opacity: 0; transform: translateY(30px);
    transition: opacity 0.7s cubic-bezier(0.4,0,0.2,1), transform 0.7s cubic-bezier(0.4,0,0.2,1);
}
.animate-in.visible { opacity: 1; transform: translateY(0); }

/* Staggered entrance animations */
.stagger-item {
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 0.6s ease, transform 0.6s cubic-bezier(0.4,0,0.2,1);
}
.stagger-item.visible {
    opacity: 1;
    transform: translateY(0);
}

/* ================================================
   Section Headers - Clear Typography
   ================================================ */
.section-header { text-align: center; margin-bottom: 56px; }
.section-label {
    display: inline-block; font-size: 14px; font-weight: 600;
    letter-spacing: 0.08em; text-transform: uppercase;
    color: var(--primary); margin-bottom: 12px;
    padding: 6px 14px;
    background: rgba(0,113,227,0.06);
    border-radius: 980px;
}
.section-title {
    font-size: clamp(28px, 5vw, 40px); font-weight: 700;
    letter-spacing: -0.025em; margin-bottom: 14px;
    color: var(--secondary);
}
.section-subtitle { font-size: 17px; color: var(--text-secondary); line-height: 1.6; }

/* ================================================
   Product Showcase Cards - Premium Apple Style
   ================================================ */
.product-showcase-section { padding: 110px 24px; background: var(--bg); }
.product-showcase-grid {
    max-width: 1200px; margin: 0 auto;
    display: grid; grid-template-columns: repeat(2, 1fr);
    gap: 24px;
}
.product-showcase-card {
    background: #fff; border-radius: var(--radius-card);
    overflow: hidden;
    box-shadow: 0 2px 12px rgba(0,0,0,0.04), 0 1px 3px rgba(0,0,0,0.02);
    transition: transform 0.4s cubic-bezier(0.34, 1.56, 0.64, 1),
                box-shadow 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    display: flex; flex-direction: column;
    text-decoration: none; color: inherit;
    position: relative;
    border: 1px solid rgba(0,0,0,0.04);
}
.product-showcase-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 20px 50px rgba(0,0,0,0.1), 0 8px 20px rgba(0,0,0,0.05);
}
.product-showcase-img {
    position: relative; height: 240px; overflow: hidden;
    background: linear-gradient(135deg, #f0f4ff 0%, #e8f0ff 100%);
}
.product-showcase-img img {
    width: 100%; height: 100%; object-fit: cover;
    transition: transform 0.6s cubic-bezier(0.4, 0, 0.2, 1);
}
.product-showcase-card:hover .product-showcase-img img {
    transform: scale(1.06);
}

/* Glossy shine effect */
.card-shine {
    position: absolute; inset: 0;
    background: linear-gradient(
        125deg,
        rgba(255,255,255,0) 0%,
        rgba(255,255,255,0.02) 40%,
        rgba(255,255,255,0.06) 50%,
        rgba(255,255,255,0.02) 60%,
        rgba(255,255,255,0) 100%
    );
    pointer-events: none;
    transition: opacity 0.4s;
}
.product-showcase-card:hover .card-shine {
    background: linear-gradient(
        125deg,
        rgba(255,255,255,0) 0%,
        rgba(255,255,255,0.03) 40%,
        rgba(255,255,255,0.1) 50%,
        rgba(255,255,255,0.03) 60%,
        rgba(255,255,255,0) 100%
    );
}

.product-badge {
    position: absolute; top: 18px; left: 18px;
    padding: 6px 14px; border-radius: 980px;
    font-size: 12px; font-weight: 600; color: #fff;
    letter-spacing: 0.5px;
    box-shadow: 0 2px 8px rgba(0,0,0,0.15);
}
.badge-face { background: linear-gradient(135deg, #0056b3, #003d80); }
.badge-password { background: linear-gradient(135deg, #10b981, #059669); }
.badge-barcode { background: linear-gradient(135deg, #f59e0b, #d97706); }
.badge-palm { background: linear-gradient(135deg, #8b5cf6, #7c3aed); }
.coming-soon-overlay {
    position: absolute; inset: 0;
    background: rgba(255,255,255,0.72);
    display: flex; align-items: center; justify-content: center;
    font-size: 22px; font-weight: 700; color: #888;
    letter-spacing: 3px;
}
.product-showcase-body {
    padding: 28px 28px 32px; flex: 1; display: flex; flex-direction: column;
}
.product-showcase-body h3 {
    font-size: 22px; font-weight: 700; margin-bottom: 6px; color: #1a1a2e;
    letter-spacing: -0.01em;
}
.product-tagline { font-size: 14px; color: var(--primary); font-weight: 600; margin-bottom: 14px; letter-spacing: 0.01em; }
.product-features { list-style: none; padding: 0; margin: 0 0 14px; flex: 1; }
.product-features li {
    font-size: 14px; color: #555; padding: 5px 0 5px 22px;
    position: relative; line-height: 1.5;
}
.product-features li::before {
    content: '✓'; position: absolute; left: 0; color: #34c759; font-weight: 700; font-size: 12px;
}
.product-use-case {
    font-size: 12px; color: #666; margin-bottom: 18px;
    padding: 8px 14px; background: var(--bg-secondary); border-radius: 10px;
    display: inline-block; font-weight: 500;
}
.product-cta {
    display: inline-flex; align-items: center; gap: 8px;
    font-size: 14px; font-weight: 600; color: var(--primary);
    transition: gap 0.3s cubic-bezier(0.4, 0, 0.2, 1), color 0.2s ease;
}
.product-cta:hover { gap: 12px; color: var(--primary-dark); }
.product-cta i { font-size: 12px; transition: transform 0.3s ease; }
.product-cta:hover i { transform: translateX(2px); }
.product-cta.disabled { color: #aaa; pointer-events: none; }
.card-coming-soon { opacity: 0.75; }
.card-coming-soon:hover { transform: none; box-shadow: var(--card-shadow); }

/* ================================================
   Payment Section - Light Gradient Style
   ================================================ */
.payment-section {
    padding: 100px 24px;
    background: linear-gradient(180deg, #f8f9ff 0%, #f0f4ff 100%);
    color: var(--text);
}
.payment-section .section-label { color: #34c759; }
.payment-section .section-title { color: var(--secondary); }
.payment-section .section-subtitle { color: var(--text-secondary); }
.payment-grid {
    max-width: 1000px; margin: 0 auto;
    display: grid; grid-template-columns: repeat(5, 1fr); gap: 20px;
}
.payment-card {
    background: white;
    backdrop-filter: blur(10px);
    border: 1px solid rgba(0,0,0,0.06);
    padding: 28px 18px; border-radius: 20px;
    text-align: center;
    transition: transform 0.35s cubic-bezier(0.34, 1.56, 0.64, 1),
                box-shadow 0.35s cubic-bezier(0.4, 0, 0.2, 1),
                border-color 0.3s ease;
}
.payment-card:hover {
    transform: translateY(-6px);
    box-shadow: 0 16px 40px rgba(0,0,0,0.08);
    border-color: rgba(0,113,227,0.1);
}
.payment-icon {
    width: 52px; height: 52px;
    background: linear-gradient(135deg, rgba(0,113,227,0.08), rgba(90,92,230,0.1));
    border-radius: 14px;
    display: flex; justify-content: center; align-items: center;
    margin: 0 auto 16px;
    transition: transform 0.3s ease;
}
.payment-card:hover .payment-icon {
    transform: scale(1.1);
}
.payment-icon i { font-size: 22px; color: var(--primary); }
.payment-card h4 { font-size: 15px; font-weight: 600; margin-bottom: 6px; color: var(--secondary); }
.payment-card p { font-size: 13px; color: var(--text-secondary); }
.payment-note {
    max-width: 800px; margin: 40px auto 0;
    padding: 18px 28px;
    background: white;
    border: 1px solid rgba(0,0,0,0.06);
    border-radius: 16px;
    display: flex; align-items: center; gap: 14px;
    box-shadow: 0 4px 16px rgba(0,0,0,0.04);
}
.payment-note i { color: #34c759; font-size: 20px; }
.payment-note span { font-size: 14px; color: var(--text-secondary); }

/* ================================================
   AI 智能防控系统 - Light Style
   ================================================ */
.ai-security-section {
    padding: 100px 24px;
    background: var(--bg);
}
.ai-security-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
    max-width: 1100px;
    margin: 0 auto;
}
.ai-security-card {
    background: white;
    padding: 32px 28px;
    border-radius: 20px;
    text-align: center;
    transition: transform 0.4s cubic-bezier(0.34, 1.56, 0.64, 1),
                box-shadow 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    box-shadow: 0 2px 12px rgba(0,0,0,0.04);
    border: 1px solid rgba(0,0,0,0.04);
}
.ai-security-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 20px 50px rgba(0,0,0,0.1);
}
.ai-security-icon {
    width: 72px;
    height: 72px;
    border-radius: 18px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 20px;
    transition: transform 0.3s ease;
}
.ai-security-card:hover .ai-security-icon {
    transform: scale(1.1);
}
.ai-security-icon i {
    font-size: 28px;
    color: white;
}
.ai-security-card h4 {
    font-size: 18px;
    font-weight: 700;
    color: #1a1a2e;
    margin: 0 0 12px;
}
.ai-security-card p {
    font-size: 14px;
    color: var(--text-secondary);
    line-height: 1.6;
    margin: 0 0 20px;
}
.ai-security-effect {
    display: inline-block;
    padding: 8px 16px;
    background: linear-gradient(135deg, rgba(17,153,142,0.08) 0%, rgba(56,239,125,0.08) 100%);
    border-radius: 20px;
    font-size: 13px;
    font-weight: 600;
    color: #11998e;
}

@media (max-width: 900px) {
    .ai-security-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}
@media (max-width: 600px) {
    .ai-security-grid {
        grid-template-columns: 1fr;
    }
}

/* ================================================
   Clients - Clean Apple Style
   ================================================ */
.clients-section {
    padding: 80px 24px;
    background: linear-gradient(180deg, #ffffff 0%, #f8f9ff 100%);
    border-top: 1px solid rgba(0,0,0,0.04);
    border-bottom: 1px solid rgba(0,0,0,0.04);
}
.clients-grid {
    max-width: 1100px; margin: 40px auto 0;
    display: grid; grid-template-columns: repeat(5, 1fr);
    gap: 20px; align-items: center;
}
.client-logo-item {
    display: flex; align-items: center; justify-content: center;
    padding: 16px;
    background: white;
    border-radius: 14px;
    border: 1px solid rgba(0,0,0,0.04);
    transition: all 0.35s cubic-bezier(0.4, 0, 0.2, 1);
    height: 76px;
}
.client-logo-item:hover {
    border-color: rgba(0,113,227,0.15);
    box-shadow: 0 8px 24px rgba(0,0,0,0.06);
    transform: translateY(-3px);
}
.client-logo-img {
    width: 100%; height: auto; max-height: 48px;
    object-fit: contain;
    filter: grayscale(20%) opacity(0.8);
    transition: filter 0.3s ease;
}
.client-logo-item:hover .client-logo-img {
    filter: none;
}

/* ================================================
   Certifications - Premium Style
   ================================================ */
.certifications-section { padding: 100px 24px; background: var(--bg-secondary); }
.certs-grid {
    max-width: 1000px; margin: 0 auto;
    display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px;
}
.cert-item {
    text-align: center; padding: 32px 24px;
    background: white; border-radius: 20px;
    transition: transform 0.4s cubic-bezier(0.34, 1.56, 0.64, 1),
                box-shadow 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    border: 1px solid rgba(0,0,0,0.04);
}
.cert-item:hover {
    transform: translateY(-6px);
    box-shadow: 0 16px 40px rgba(0,0,0,0.08);
}
.cert-icon {
    width: 76px; height: 76px;
    border: 2px solid rgba(0,113,227,0.15);
    border-radius: 20px;
    display: flex; justify-content: center; align-items: center;
    margin: 0 auto 20px;
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    background: rgba(0,113,227,0.03);
}
.cert-icon img { width: 36px; height: 36px; object-fit: contain; }
.cert-item:hover .cert-icon {
    background: var(--primary);
    border-color: var(--primary);
    transform: scale(1.1);
}
.cert-item:hover .cert-icon i { color: white; }
.cert-item h4 { font-size: 17px; font-weight: 700; margin-bottom: 6px; color: var(--secondary); }
.cert-item p { font-size: 14px; color: var(--text-secondary); line-height: 1.5; }

/* ================================================
   Solutions - Clean Apple Style
   ================================================ */
.solutions { padding: 110px 24px; background: var(--bg); }
.solution-tabs {
    display: flex; justify-content: center; gap: 10px;
    margin-bottom: 56px; flex-wrap: wrap;
}
.tab-btn {
    display: flex; align-items: center; gap: 8px;
    padding: 12px 24px;
    background: var(--bg-secondary); border: 1px solid rgba(0,0,0,0.06);
    border-radius: 980px; font-size: 14px; font-weight: 500;
    cursor: pointer; transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    color: var(--text-secondary);
}
.tab-btn:hover {
    background: white;
    border-color: rgba(0,113,227,0.2);
    color: var(--primary);
}
.tab-btn.active {
    background: var(--primary); color: white;
    border-color: var(--primary);
    box-shadow: 0 4px 16px rgba(0,113,227,0.25);
}
.tab-btn i { font-size: 16px; }
.solution-content { max-width: 1024px; margin: 0 auto; }
.solution-panel { display: none; }
.solution-panel.active { display: block; animation: fadeInUp 0.5s ease; }
.solution-showcase {
    display: grid; grid-template-columns: 1fr 1fr; gap: 64px;
    align-items: center;
}
.solution-text h3 { font-size: 28px; font-weight: 700; margin-bottom: 16px; color: var(--secondary); }
.solution-text p { color: var(--text-secondary); margin-bottom: 28px; line-height: 1.7; }
.solution-features { margin-bottom: 28px; }
.solution-features li {
    display: flex; align-items: center; gap: 14px;
    margin-bottom: 14px; font-size: 15px; color: var(--text);
}
.solution-features i { color: #34c759; font-size: 16px; }
.solution-image {
    background: linear-gradient(135deg, #f0f4ff 0%, #e8f0ff 100%);
    border-radius: 24px; aspect-ratio: 16/10;
    display: flex; flex-direction: column;
    justify-content: center; align-items: center;
    position: relative; overflow: hidden;
    transition: box-shadow 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    border: 1px solid rgba(0,0,0,0.04);
}
.solution-image:hover { box-shadow: var(--shadow-lg); }
.solution-image > img {
    position: relative; z-index: 2;
    width: 100%; height: 100%; object-fit: cover;
    transition: transform 0.6s cubic-bezier(0.4, 0, 0.2, 1);
}
.solution-image:hover > img { transform: scale(1.04); }
.solution-placeholder i { font-size: 64px; color: rgba(0,113,227,0.12); margin-bottom: 16px; }
.solution-placeholder p { font-size: 16px; color: var(--text-secondary); }

/* ================================================
   Cases - Premium Style
   ================================================ */
.cases { padding: 110px 24px; background: linear-gradient(180deg, #f8f9ff 0%, #ffffff 100%); }
.case-featured {
    max-width: 1024px; margin: 0 auto 56px;
    display: grid; grid-template-columns: 1fr 1fr; gap: 0;
    background: white; border-radius: var(--radius-card);
    overflow: hidden;
    box-shadow: 0 4px 20px rgba(0,0,0,0.06);
    transition: box-shadow 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    border: 1px solid rgba(0,0,0,0.04);
}
.case-featured:hover { box-shadow: 0 16px 50px rgba(0,0,0,0.1); }
.case-image {
    display: flex; flex-direction: column;
    justify-content: center; align-items: center;
    min-height: 360px; overflow: hidden;
    background: linear-gradient(135deg, #f0f4ff 0%, #e8f0ff 100%);
}
.case-image img {
    width: 100%; height: 100%;
    transition: transform 0.6s cubic-bezier(0.4, 0, 0.2, 1);
}
.case-featured:hover .case-image img { transform: scale(1.06); }
.case-details {
    padding: 48px; display: flex; flex-direction: column; justify-content: center;
}
.case-badge {
    display: inline-block; padding: 6px 14px;
    background: var(--primary); color: white;
    border-radius: 980px; font-size: 12px; font-weight: 600;
    margin-bottom: 18px; width: fit-content;
    box-shadow: 0 2px 8px rgba(0,113,227,0.2);
}
.case-details h3 { font-size: 26px; font-weight: 700; margin-bottom: 14px; color: var(--secondary); }
.case-details > p { color: var(--text-secondary); margin-bottom: 28px; line-height: 1.7; }
.case-metrics { display: flex; gap: 40px; }
.metric { text-align: center; }
.metric .metric-num {
    font-size: 28px; font-weight: 700; color: var(--primary);
    display: block; letter-spacing: -0.02em;
}
.metric .metric-label { font-size: 12px; color: var(--text-secondary); margin-top: 4px; font-weight: 500; }

.case-grid {
    max-width: 1024px; margin: 0 auto;
    display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px;
}
.case-card {
    background: white; border-radius: 20px; overflow: hidden;
    box-shadow: 0 2px 12px rgba(0,0,0,0.04);
    transition: transform 0.4s cubic-bezier(0.34, 1.56, 0.64, 1),
                box-shadow 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    border: 1px solid rgba(0,0,0,0.04);
}
.case-card:hover {
    transform: translateY(-6px);
    box-shadow: 0 16px 40px rgba(0,0,0,0.1);
}
.case-card-img-wrap {
    height: 200px; overflow: hidden;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    display: flex; justify-content: center; align-items: center;
    transition: transform 0.5s cubic-bezier(0.4, 0, 0.2, 1);
}
.case-card-img-wrap img {
    width: 100%; height: 100%; object-fit: cover;
    transition: transform 0.6s cubic-bezier(0.4, 0, 0.2, 1);
}
.case-card:hover .case-card-img-wrap img { transform: scale(1.08); }
.case-card:hover .case-card-img-wrap { transform: none; }
.case-card-content { padding: 24px; }
.case-card-badge {
    display: inline-block; padding: 4px 10px;
    background: rgba(0,113,227,0.08); border-radius: 10px;
    font-size: 11px; color: var(--primary); font-weight: 600;
    margin-bottom: 10px;
}
.case-card h4 { font-size: 17px; font-weight: 700; margin-bottom: 8px; color: var(--secondary); }
.case-card p { font-size: 14px; color: var(--text-secondary); line-height: 1.6; }

/* ================================================
   FAQ - Clean Apple Style
   ================================================ */
.faq-section { padding: 110px 24px; background: var(--bg); }
.faq-container { max-width: 800px; margin: 0 auto; }
.faq-item { border-bottom: 1px solid rgba(0,0,0,0.06); }
.faq-question {
    width: 100%; display: flex; justify-content: space-between; align-items: center;
    padding: 24px 0; background: none; border: none;
    font-size: 17px; font-weight: 500; color: var(--text);
    cursor: pointer; text-align: left;
    transition: color 0.25s ease, padding-left 0.3s ease;
    font-family: inherit;
}
.faq-question:hover { color: var(--primary); padding-left: 4px; }
.faq-question i {
    color: var(--text-secondary);
    transition: transform 0.4s cubic-bezier(0.4, 0, 0.2, 1), color 0.25s ease;
}
.faq-item.active .faq-question { color: var(--primary); }
.faq-item.active .faq-question i {
    transform: rotate(180deg);
    color: var(--primary);
}
.faq-answer {
    max-height: 0; overflow: hidden;
    transition: max-height 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}
.faq-item.active .faq-answer { max-height: 500px; }
.faq-answer p { padding: 0 0 24px 0; color: var(--text-secondary); font-size: 15px; line-height: 1.7; }

/* ================================================
   News Section
   ================================================ */
.news-section { padding: 110px 22px; background: var(--bg); }
.news-grid {
    max-width: 1200px; margin: 0 auto;
    display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px;
}
.news-card {
    background: #fff; border-radius: 20px; overflow: hidden;
    box-shadow: var(--card-shadow);
    transition: all 0.35s cubic-bezier(0.4, 0, 0.2, 1);
    text-decoration: none; color: inherit;
    display: flex; flex-direction: column;
}
.news-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--card-shadow-hover);
}
.news-card-img {
    height: 190px;
    background: linear-gradient(135deg, #e8f0ff, #d0e4ff);
    display: flex; align-items: center; justify-content: center;
    overflow: hidden;
}
.news-card-img img { width: 100%; height: 100%; object-fit: cover; }
.news-card-img .news-icon { font-size: 48px; color: rgba(0,86,179,0.25); }
.news-card-body { padding: 22px; flex: 1; display: flex; flex-direction: column; }
.news-card-tag {
    display: inline-block; font-size: 11px; font-weight: 600;
    padding: 3px 10px; background: #e8f0ff; color: var(--primary);
    border-radius: 10px; margin-bottom: 10px; width: fit-content;
}
.news-card-title { font-size: 16px; font-weight: 700; margin-bottom: 10px; line-height: 1.4; color: #1a1a2e; }
.news-card-excerpt {
    font-size: 13px; color: #666; line-height: 1.6; flex: 1;
    display: -webkit-box; -webkit-line-clamp: 3; -webkit-box-orient: vertical;
    overflow: hidden;
}
.news-card-date { font-size: 12px; color: #bbb; margin-top: 14px; }
.news-loading { grid-column: 1/-1; text-align: center; padding: 40px; color: #888; }

/* ================================================
   About - Premium Style
   ================================================ */
.about { padding: 110px 24px; background: linear-gradient(180deg, #f8f9ff 0%, #ffffff 100%); }
.about-content { max-width: 800px; margin: 0 auto 60px; }
.about-text { font-size: 18px; color: var(--text-secondary); line-height: 1.8; text-align: center; }
.hero-tagline-sub {
    font-size: 16px;
    font-weight: 400;
    color: rgba(255,255,255,0.75);
    letter-spacing: 2px;
}
.about-credentials {
    margin-top: 32px;
    padding: 24px 32px;
    background: linear-gradient(135deg, rgba(108,99,255,0.06) 0%, rgba(0,212,255,0.06) 100%);
    border-radius: 16px;
    border: 1px solid rgba(108,99,255,0.15);
    font-size: 15px;
    color: var(--text-secondary);
    line-height: 2;
    text-align: left;
    display: inline-block;
}
.about-pillars {
    max-width: 1000px; margin: 0 auto;
    display: grid; grid-template-columns: repeat(3, 1fr); gap: 28px;
}
.pillar {
    text-align: center; padding: 40px 28px;
    background: white; border-radius: 24px;
    transition: transform 0.4s cubic-bezier(0.34, 1.56, 0.64, 1),
                box-shadow 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    border: 1px solid rgba(0,0,0,0.04);
}
.pillar:hover {
    transform: translateY(-6px);
    box-shadow: 0 16px 50px rgba(0,0,0,0.1);
}
.pillar-icon {
    width: 72px; height: 72px;
    background: linear-gradient(135deg, var(--primary) 0%, #5a5ce6 100%);
    border-radius: 20px;
    display: flex; justify-content: center; align-items: center;
    margin: 0 auto 24px;
    box-shadow: 0 8px 24px rgba(0,113,227,0.25);
    transition: transform 0.3s ease;
}
.pillar:hover .pillar-icon { transform: scale(1.1); }
.pillar-icon i { font-size: 30px; color: white; }
.pillar h3 { font-size: 20px; font-weight: 700; margin-bottom: 10px; color: var(--secondary); }
.pillar p { font-size: 14px; color: var(--text-secondary); line-height: 1.6; }

/* ================================================
   After-Sales Service
   ================================================ */
.after-sales { padding: 110px 24px; background: linear-gradient(180deg, #ffffff 0%, #f8f9ff 100%); }
.after-sales-grid {
    max-width: 1100px; margin: 0 auto 48px;
    display: grid; grid-template-columns: repeat(3, 1fr); gap: 28px;
}
.after-sales-card {
    background: #ffffff;
    border: 1px solid rgba(0,86,179,0.08);
    border-radius: 20px; padding: 36px 28px;
    transition: all 0.3s ease;
    position: relative; overflow: hidden;
}
.after-sales-card::before {
    content: ''; position: absolute; top: 0; left: 0; right: 0; height: 3px;
    background: linear-gradient(90deg, var(--primary), #00c6fb);
    opacity: 0; transition: opacity 0.3s ease;
}
.after-sales-card:hover { transform: translateY(-4px); box-shadow: 0 12px 40px rgba(0,86,179,0.12); }
.after-sales-card:hover::before { opacity: 1; }
.after-sales-icon {
    width: 56px; height: 56px; border-radius: 16px;
    background: linear-gradient(135deg, rgba(0,86,179,0.08), rgba(0,198,251,0.08));
    display: flex; align-items: center; justify-content: center;
    margin-bottom: 20px;
}
.after-sales-icon i { font-size: 24px; color: var(--primary); }
.after-sales-card h3 { font-size: 18px; font-weight: 700; margin-bottom: 12px; color: var(--text); }
.after-sales-card p { font-size: 14px; color: var(--text-secondary); line-height: 1.7; }
.after-sales-cta { text-align: center; }

/* ================================================
   Contact - Premium Style
   ================================================ */
.contact { padding: 110px 24px; background: var(--bg); }
.contact-container {
    max-width: 1000px; margin: 0 auto;
    display: grid; grid-template-columns: 280px 1fr; gap: 64px;
}
.contact-info { display: flex; flex-direction: column; gap: 24px; }
.contact-card {
    display: flex; align-items: flex-start; gap: 16px;
    padding: 16px;
    border-radius: 16px;
    transition: background-color 0.3s ease;
}
.contact-card:hover { background: var(--bg-secondary); }
.contact-icon {
    width: 48px; height: 48px;
    background: linear-gradient(135deg, rgba(0,113,227,0.08), rgba(90,92,230,0.1));
    border-radius: 14px;
    display: flex; justify-content: center; align-items: center; flex-shrink: 0;
    transition: transform 0.3s ease;
}
.contact-card:hover .contact-icon { transform: scale(1.08); }
.contact-icon i { font-size: 20px; color: var(--primary); }
.contact-text h4 { font-size: 14px; font-weight: 600; margin-bottom: 4px; color: var(--secondary); }
.contact-text p { font-size: 14px; color: var(--text-secondary); }
.contact-form {
    background: white; padding: 48px;
    border-radius: 24px; position: relative;
    border: 1px solid rgba(0,0,0,0.06);
    box-shadow: 0 4px 24px rgba(0,0,0,0.04);
}
.contact-form::before {
    content: ''; position: absolute; top: 0; left: 0; right: 0;
    height: 4px;
    background: linear-gradient(90deg, var(--primary), #5a5ce6, #764ba2);
    border-radius: 24px 24px 0 0;
}
.contact-form h3 { font-size: 22px; font-weight: 700; margin-bottom: 32px; color: var(--secondary); }
.form-row { margin-bottom: 20px; }
.form-row input, .form-row textarea, .form-row select {
    width: 100%; padding: 15px 20px;
    border: 1.5px solid rgba(0,0,0,0.08); border-radius: 14px;
    font-size: 15px; font-family: inherit; background: var(--bg-secondary);
    transition: border-color 0.25s ease, box-shadow 0.25s ease, background-color 0.25s ease;
}
.form-row input:hover, .form-row textarea:hover, .form-row select:hover {
    border-color: rgba(0,113,227,0.3);
}
.form-row input:focus, .form-row textarea:focus, .form-row select:focus {
    outline: none;
    border-color: var(--primary);
    background: white;
    box-shadow: 0 0 0 4px rgba(0,113,227,0.08);
}
.form-row textarea { resize: vertical; min-height: 120px; }
.form-success { display: none; text-align: center; padding: 40px; }
.form-success.show { display: block; }
.form-success i { font-size: 52px; color: #34c759; margin-bottom: 18px; }
.form-success h3 { font-size: 22px; font-weight: 600; margin-bottom: 8px; color: var(--secondary); }
.form-success p { color: var(--text-secondary); }

/* ================================================
   Footer - Clean Light Style
   ================================================ */
.footer {
    background: var(--bg-secondary);
    color: var(--text);
    padding: 64px 24px 36px;
    border-top: 1px solid rgba(0,0,0,0.06);
}
.footer-main {
    max-width: 1100px; margin: 0 auto;
    display: flex; justify-content: space-between; align-items: flex-start;
    gap: 40px; margin-bottom: 44px;
}
.footer-brand .brand-row { display: flex; align-items: center; gap: 10px; margin-bottom: 8px; }
.footer-brand .brand-icon { font-size: 28px; }
.footer-brand .brand-name { font-size: 18px; font-weight: 600; color: var(--secondary); }
.footer-brand .brand-tagline { font-size: 13px; color: var(--text-secondary); }
.footer-nav { display: flex; gap: 32px; flex-wrap: wrap; }
.footer-nav a { font-size: 13px; color: var(--text-secondary); transition: color 0.2s ease; }
.footer-nav a:hover { color: var(--primary); }
.footer-social { display: flex; gap: 12px; }
.footer-social a {
    width: 40px; height: 40px;
    background: white;
    border-radius: 50%;
    display: flex; justify-content: center; align-items: center;
    color: var(--text-secondary);
    transition: all 0.3s cubic-bezier(0.34, 1.56, 0.64, 1);
    box-shadow: 0 2px 8px rgba(0,0,0,0.06);
}
.footer-social a:hover {
    background: var(--primary);
    color: white;
    transform: translateY(-3px);
    box-shadow: 0 6px 16px rgba(0,113,227,0.25);
}
.footer-bottom {
    max-width: 1100px; margin: 0 auto;
    padding-top: 32px; border-top: 1px solid rgba(0,0,0,0.06);
    text-align: center;
}
.footer-bottom p { font-size: 12px; color: var(--text-secondary); }

/* ================================================
   Back to Top Button - Premium Apple Style
   ================================================ */
.back-to-top {
    position: fixed; bottom: 28px; right: 28px;
    width: 48px; height: 48px;
    background: white;
    border: 1px solid rgba(0,0,0,0.1);
    border-radius: 50%;
    display: flex; align-items: center; justify-content: center;
    cursor: pointer; z-index: 999;
    opacity: 0; pointer-events: none;
    transform: translateY(16px);
    transition: all 0.4s cubic-bezier(0.34, 1.56, 0.64, 1);
    box-shadow: 0 4px 20px rgba(0,0,0,0.1);
}
.back-to-top.visible {
    opacity: 1; pointer-events: auto;
    transform: translateY(0);
}
.back-to-top:hover {
    background: var(--primary);
    border-color: var(--primary);
    transform: translateY(-3px);
    box-shadow: 0 8px 24px rgba(0,113,227,0.3);
}
.back-to-top i { font-size: 14px; color: var(--text-secondary); transition: color 0.2s ease; }
.back-to-top:hover i { color: white; }

/* ================================================
   Responsive
   ================================================ */
@media (max-width: 968px) {
    .nav-links {
        display: none; position: absolute; top: 52px; left: 0; right: 0;
        background: rgba(255,255,255,0.97);
        backdrop-filter: blur(20px); flex-direction: column;
        padding: 16px 22px; border-bottom: 1px solid var(--border); gap: 0;
    }
    .nav-links.mobile-open { display: flex; }
    .nav-link { padding: 16px 0; border-bottom: 1px solid rgba(0,0,0,0.04); font-size: 16px; }
    .mobile-menu { display: block; }

    /* Mobile dropdown */
    .has-dropdown {
        flex-direction: column;
    }
    .has-dropdown .nav-dropdown-trigger {
        display: flex;
        align-items: center;
        justify-content: space-between;
        width: 100%;
    }
    .has-dropdown .dropdown-arrow {
        transition: transform 0.3s ease;
    }
    .has-dropdown.open .dropdown-arrow {
        transform: rotate(180deg);
    }
    .has-dropdown .dropdown-menu {
        position: static;
        transform: none;
        opacity: 0;
        visibility: hidden;
        max-height: 0;
        overflow: hidden;
        min-width: 100%;
        box-shadow: none;
        background: rgba(0, 0, 0, 0.02);
        border-radius: 12px;
        margin-top: 0;
    }
    .has-dropdown.open .dropdown-menu {
        opacity: 1;
        visibility: visible;
        max-height: 500px;
        margin-top: 8px;
        padding-bottom: 8px;
    }
    .has-dropdown .dropdown-inner {
        background: transparent;
        backdrop-filter: none;
        box-shadow: none;
        border: none;
        padding: 0;
        transform: none;
    }
    .has-dropdown .dropdown-item {
        opacity: 1;
        transform: none;
        padding: 12px 16px;
    }
    .has-dropdown.open .dropdown-item {
        transform: none;
    }

    .hero {
        grid-template-columns: 1fr;
        padding: 100px 24px 60px;
        text-align: center;
    }
    .hero-visual-container { grid-column: 1; grid-row: 2; }
    .hero-content { max-width: 100%; }
    .hero-buttons { justify-content: center; }
    .hero-stats { justify-content: center; }
    .scroll-hint { grid-row: 3; }
    .payment-grid { grid-template-columns: repeat(3, 1fr); }
    .solution-showcase { grid-template-columns: 1fr; gap: 36px; }
    .case-featured { grid-template-columns: 1fr; }
    .case-grid { grid-template-columns: 1fr; }
    .about-pillars { grid-template-columns: 1fr; }
    .contact-container { grid-template-columns: 1fr; }
    .footer-main { flex-direction: column; text-align: center; }
    .footer-nav { justify-content: center; }
    .footer-social { justify-content: center; }
    .certs-grid { grid-template-columns: repeat(3, 1fr); }
    .clients-grid { grid-template-columns: repeat(3, 1fr); }
}
@media (max-width: 768px) {
    .product-showcase-grid { grid-template-columns: 1fr; }
    .payment-grid { grid-template-columns: repeat(2, 1fr); }
    .case-metrics { flex-direction: column; gap: 20px; }
    .certs-grid { grid-template-columns: repeat(2, 1fr); }
    .clients-grid { grid-template-columns: repeat(2, 1fr); }
    .news-grid { grid-template-columns: 1fr; }
    .after-sales-grid { grid-template-columns: repeat(2, 1fr); gap: 20px; }
}
@media (max-width: 480px) {
    .payment-grid { grid-template-columns: 1fr; }
    .certs-grid { grid-template-columns: 1fr; }
    .clients-grid { grid-template-columns: repeat(2, 1fr); }
    .after-sales-grid { grid-template-columns: 1fr; }
}

/* ================================================
   Hero Animation - Apple Style
   ================================================ */
.hero-animation {
    position: relative;
    width: 100%;
    max-width: 400px;
    height: 400px;
    display: flex;
    align-items: center;
    justify-content: center;
}

/* Animation phases */
.anim-phase {
    position: absolute;
    inset: 0;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    opacity: 0;
    pointer-events: none;
}

/* Phase 1: Face Scan */
.phase-scan.active .scan-face {
    animation: fadeInScale 0.6s ease forwards;
}
.scan-face {
    position: relative;
    width: 160px;
    height: 160px;
    display: flex;
    align-items: center;
    justify-content: center;
}
.scan-ring {
    position: absolute;
    border-radius: 50%;
    border: 2px solid rgba(0,113,227,0.3);
    animation: pulseRing 2s ease-in-out infinite;
}
.scan-ring-1 { width: 120px; height: 120px; animation-delay: 0s; }
.scan-ring-2 { width: 140px; height: 140px; animation-delay: 0.3s; }
.scan-ring-3 { width: 160px; height: 160px; animation-delay: 0.6s; }
@keyframes pulseRing {
    0%, 100% { transform: scale(1); opacity: 0.3; }
    50% { transform: scale(1.1); opacity: 0.8; }
}
.scan-icon {
    width: 80px;
    height: 80px;
    background: linear-gradient(135deg, #0071e3, #5a5ce6);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 36px;
    color: white;
    z-index: 2;
    box-shadow: 0 0 40px rgba(0,113,227,0.5);
}
.scan-icon i { color: white; }
.scan-beam {
    position: absolute;
    top: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 60px;
    height: 3px;
    background: linear-gradient(90deg, transparent, #0071e3, #5a5ce6, #0071e3, transparent);
    box-shadow: 0 0 20px rgba(0,113,227,0.8);
    animation: scanBeam 2s ease-in-out infinite;
}
@keyframes scanBeam {
    0% { top: 10px; opacity: 0; }
    20% { opacity: 1; }
    80% { opacity: 1; }
    100% { top: 150px; opacity: 0; }
}
.phase-label {
    margin-top: 20px;
    font-size: 14px;
    color: rgba(255,255,255,0.6);
    font-weight: 500;
    letter-spacing: 0.1em;
}

/* Phase 2-4: Locker animation */
.phase-locker.active .locker-scene,
.phase-item.active .locker-scene,
.phase-success.active .locker-scene {
    animation: fadeInScale 0.5s ease forwards;
}
.locker-scene {
    display: flex;
    flex-direction: column;
    align-items: center;
}
.locker-cabinet {
    position: relative;
    width: 200px;
    height: 260px;
    perspective: 1000px;
}
.locker-left-door,
.locker-right-door {
    position: absolute;
    top: 0;
    width: 50%;
    height: 100%;
    background: linear-gradient(165deg, #3a3a42, #25252c);
    border: 1px solid rgba(255,255,255,0.1);
    transform-style: preserve-3d;
    transition: transform 0.6s cubic-bezier(0.4, 0, 0.2, 1);
}
.locker-left-door {
    left: 0;
    border-radius: 12px 0 0 12px;
    transform-origin: left center;
}
.locker-right-door {
    right: 0;
    border-radius: 0 12px 12px 0;
    transform-origin: right center;
}
.locker-cabinet.doors-open .locker-left-door {
    transform: rotateY(-110deg);
}
.locker-cabinet.doors-open .locker-right-door {
    transform: rotateY(110deg);
}
.door-panel {
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
}
.door-screen-icon {
    width: 50px;
    height: 50px;
    background: linear-gradient(135deg, #0071e3, #5a5ce6);
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 20px;
    color: white;
    box-shadow: 0 0 20px rgba(0,113,227,0.4);
}
.door-screen-icon i { color: white; }
.door-handle {
    width: 8px;
    height: 40px;
    background: linear-gradient(90deg, #555, #333, #555);
    border-radius: 4px;
}
.locker-inside {
    position: absolute;
    top: 10px;
    left: 50%;
    transform: translateX(-50%);
    width: calc(100% - 20px);
    height: calc(100% - 20px);
    background: rgba(0,0,0,0.3);
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: opacity 0.3s;
}
.locker-inside.visible { opacity: 1; }
.inside-glow {
    width: 60px;
    height: 60px;
    background: radial-gradient(circle, rgba(52,199,89,0.3), transparent);
    border-radius: 50%;
}
.floating-item {
    position: absolute;
    top: -60px;
    animation: floatDown 1s ease-in forwards;
}
.floating-item i {
    font-size: 32px;
    color: white;
    filter: drop-shadow(0 4px 8px rgba(0,0,0,0.3));
}
@keyframes floatDown {
    0% { top: -60px; opacity: 0; }
    50% { top: -20px; opacity: 1; }
    100% { top: 10px; opacity: 1; }
}

/* Phase 4: Success */
.phase-success .success-display {
    animation: successPop 0.5s cubic-bezier(0.34, 1.56, 0.64, 1) forwards;
}
.success-display {
    display: flex;
    flex-direction: column;
    align-items: center;
}
.success-icon {
    width: 80px;
    height: 80px;
    background: #34c759;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 0 40px rgba(52,199,89,0.5);
}
.success-icon i {
    font-size: 40px;
    color: white;
}
.success-text {
    margin-top: 16px;
    font-size: 20px;
    font-weight: 600;
    color: #34c759;
}
@keyframes successPop {
    0% { transform: scale(0.5); opacity: 0; }
    100% { transform: scale(1); opacity: 1; }
}

/* Animation sequence control via JS */
.hero-animation .phase-scan { animation: phase1 8s ease-in-out infinite; }
.hero-animation .phase-locker { animation: phase2 8s ease-in-out infinite; }
.hero-animation .phase-item { animation: phase3 8s ease-in-out infinite; }
.hero-animation .phase-success { animation: phase4 8s ease-in-out infinite; }

@keyframes phase1 {
    0% { opacity: 1; }
    25% { opacity: 1; }
    30% { opacity: 0; }
    100% { opacity: 0; }
}
@keyframes phase2 {
    0% { opacity: 0; }
    25% { opacity: 0; }
    30% { opacity: 1; }
    50% { opacity: 1; }
    55% { opacity: 0; }
    100% { opacity: 0; }
}
@keyframes phase3 {
    0% { opacity: 0; }
    50% { opacity: 0; }
    55% { opacity: 1; }
    75% { opacity: 1; }
    80% { opacity: 0; }
    100% { opacity: 0; }
}
@keyframes phase4 {
    0% { opacity: 0; }
    75% { opacity: 0; }
    80% { opacity: 1; }
    95% { opacity: 1; }
    100% { opacity: 0; }
}

/* ================================================
   Apple-Style Hero Animation - Robot Face + Locker
   8-second auto-play loop, 5 phases
   ================================================ */

/* Container */
.hero-animation {
    width: 320px; height: 420px;
    background: linear-gradient(170deg, #1a1a2e 0%, #0d0d1a 100%);
    border-radius: 28px;
    border: 0.5px solid rgba(255,255,255,0.08);
    box-shadow: 0 32px 80px rgba(0,0,0,0.55), 0 0 0 0.5px rgba(255,255,255,0.04) inset;
    position: relative; overflow: hidden;
    display: flex; align-items: center; justify-content: center;
}
.hero-animation::before {
    content: ''; position: absolute; top: 0; left: 0; right: 0; height: 50%;
    background: linear-gradient(180deg, rgba(255,255,255,0.025) 0%, transparent 100%);
    pointer-events: none; z-index: 20;
}
.hero-animation.running {
    box-shadow: 0 32px 80px rgba(0,0,0,0.55), 0 0 0 0.5px rgba(255,255,255,0.04) inset, 0 0 70px rgba(0,113,227,0.08);
}

/* All phases */
.anim-phase {
    position: absolute; inset: 0;
    display: flex; flex-direction: column;
    align-items: center; justify-content: center;
    opacity: 0; transform: scale(0.92);
    transition: opacity 0.55s cubic-bezier(0.4,0,0.2,1), transform 0.55s cubic-bezier(0.4,0,0.2,1);
    pointer-events: none;
}
.anim-phase.active {
    opacity: 1; transform: scale(1);
    pointer-events: auto;
}

/* ==================== PHASE 1: Robot Face Scan ==================== */
.scan-face {
    position: relative; width: 160px; height: 160px;
    display: flex; align-items: center; justify-content: center;
}

/* Concentric rings */
.scan-ring {
    position: absolute; border-radius: 50%;
    border: 1.5px solid rgba(0,113,227,0.25);
    animation: ringPulse 2s ease-in-out infinite;
}
.scan-ring-1 { width: 120px; height: 120px; animation-delay: 0s; }
.scan-ring-2 { width: 145px; height: 145px; animation-delay: 0.3s; border-color: rgba(0,113,227,0.12); }
.scan-ring-3 { width: 170px; height: 170px; animation-delay: 0.6s; border-color: rgba(0,113,227,0.06); }

@keyframes ringPulse {
    0%, 100% { transform: scale(0.85); opacity: 0.4; }
    50% { transform: scale(1.05); opacity: 1; }
}

/* Robot icon */
.scan-icon {
    width: 100px; height: 100px; border-radius: 50%;
    background: radial-gradient(circle at 40% 35%, #2a2a42, #15152a);
    border: 1.5px solid rgba(0,113,227,0.3);
    display: flex; align-items: center; justify-content: center;
    box-shadow: 0 0 30px rgba(0,113,227,0.15), 0 8px 32px rgba(0,0,0,0.4), inset 0 1px 0 rgba(255,255,255,0.06);
    position: relative; z-index: 3;
}
.scan-icon i {
    font-size: 44px; color: #0071e3;
    filter: drop-shadow(0 0 8px rgba(0,113,227,0.5));
}

/* Scan beam sweeps top to bottom */
.scan-beam {
    position: absolute; left: 8px; right: 8px; height: 3px;
    background: linear-gradient(90deg, transparent, #0071e3, #5a5ce6, #0071e3, transparent);
    box-shadow: 0 0 14px rgba(0,113,227,0.7), 0 0 40px rgba(0,113,227,0.3);
    border-radius: 2px;
    animation: beamSweep 1.8s ease-in-out infinite;
    z-index: 4;
}
@keyframes beamSweep {
    0% { top: 8px; opacity: 0; }
    8% { opacity: 1; }
    92% { opacity: 1; }
    100% { top: calc(100% - 8px); opacity: 0; }
}

/* ==================== PHASE 2: Locker Cabinet ==================== */
.locker-scene { display: flex; align-items: center; justify-content: center; }

/* ==================== 人脸识别储物流程动画 - Light Style ==================== */
.locker-animation-container {
    position: relative;
    width: 320px;
    height: 420px;
    display: flex;
    flex-direction: column;
    align-items: center;
    background: white;
    border-radius: 28px;
    padding: 24px;
    box-shadow: 0 20px 60px rgba(0,0,0,0.1), 0 4px 16px rgba(0,0,0,0.05);
    border: 1px solid rgba(0,0,0,0.06);
}

/* 屏幕部分 */
.locker-screen {
    width: 200px;
    height: 140px;
    background: linear-gradient(145deg, #1a1a2e 0%, #16213e 100%);
    border-radius: 16px;
    border: 3px solid #2d3436;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 8px 32px rgba(0,0,0,0.2), inset 0 1px 0 rgba(255,255,255,0.1);
    margin-bottom: 20px;
}

.screen-content {
    position: relative;
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
}

.screen-state {
    position: absolute;
    display: none;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 8px;
}

.screen-state.active {
    display: flex;
}

.screen-state span {
    color: #fff;
    font-size: 13px;
    font-weight: 500;
}

/* 初始状态 */
.state-start .screen-icon {
    font-size: 36px;
    color: #11998e;
    animation: tapPulse 2s ease-in-out infinite;
}

@keyframes tapPulse {
    0%, 100% { transform: scale(1); opacity: 0.8; }
    50% { transform: scale(1.15); opacity: 1; }
}

/* 扫描状态 */
.state-scanning {
    flex-direction: column;
}

.scan-frame {
    position: relative;
    width: 70px;
    height: 70px;
    background: rgba(17,153,142,0.1);
    border-radius: 8px;
}

.scan-corner {
    position: absolute;
    width: 16px;
    height: 16px;
    border-color: #38ef7d;
    border-style: solid;
}

.scan-corner.tl { top: 0; left: 0; border-width: 3px 0 0 3px; border-radius: 4px 0 0 0; }
.scan-corner.tr { top: 0; right: 0; border-width: 3px 3px 0 0; border-radius: 0 4px 0 0; }
.scan-corner.bl { bottom: 0; left: 0; border-width: 0 0 3px 3px; border-radius: 0 0 0 4px; }
.scan-corner.br { bottom: 0; right: 0; border-width: 0 3px 3px 0; border-radius: 0 0 4px 0; }

.scan-line {
    position: absolute;
    left: 8px;
    right: 8px;
    height: 2px;
    background: linear-gradient(90deg, transparent, #38ef7d, transparent);
    animation: scanVertical 1.5s ease-in-out infinite;
    top: 8px;
}

@keyframes scanVertical {
    0% { top: 8px; opacity: 0; }
    20% { opacity: 1; }
    80% { opacity: 1; }
    100% { top: calc(100% - 10px); opacity: 0; }
}

.scan-text {
    color: #38ef7d !important;
    animation: textBlink 1s ease-in-out infinite;
}

@keyframes textBlink {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.5; }
}

/* 成功状态 */
.state-success i {
    font-size: 48px;
    color: #34c759;
    animation: successPop 0.5s ease;
}

.state-success span {
    color: #34c759 !important;
    font-weight: 600 !important;
}

@keyframes successPop {
    0% { transform: scale(0); opacity: 0; }
    50% { transform: scale(1.2); }
    100% { transform: scale(1); opacity: 1; }
}

/* 柜子组 */
.locker-bank {
    display: flex;
    gap: 8px;
    padding: 16px 24px;
    background: linear-gradient(145deg, #f8f9ff 0%, #f0f2f5 100%);
    border-radius: 16px;
    box-shadow: 0 4px 16px rgba(0,0,0,0.06);
    border: 1px solid rgba(0,0,0,0.04);
}

.locker-unit {
    position: relative;
    width: 70px;
    height: 140px;
}

.locker-door {
    position: absolute;
    inset: 0;
    background: linear-gradient(165deg, #fafafc 0%, #f0f0f4 50%, #e8e8ec 100%);
    border-radius: 8px;
    border: 1px solid rgba(0,0,0,0.1);
    transition: transform 0.6s cubic-bezier(0.4, 0, 0.2, 1);
    transform-origin: left center;
    box-shadow: 0 2px 8px rgba(0,0,0,0.1);
}

/* 活跃柜门样式 */
.active-unit .locker-door {
    background: linear-gradient(165deg, #e8f5f3 0%, #d4ede9 100%);
    border-color: #11998e;
}

/* 柜门指示灯 */
.door-light {
    position: absolute;
    top: 12px;
    right: 12px;
    width: 10px;
    height: 10px;
    background: #ddd;
    border-radius: 50%;
    transition: all 0.3s ease;
}

.door-light.green {
    background: #34c759;
    box-shadow: 0 0 12px rgba(52,199,89,0.6);
    animation: lightPulse 1s ease-in-out infinite;
}

@keyframes lightPulse {
    0%, 100% { box-shadow: 0 0 8px rgba(52,199,89,0.6); }
    50% { box-shadow: 0 0 16px rgba(52,199,89,0.8); }
}

/* 柜门打开状态 */
.locker-door.door-open {
    transform: rotateY(-110deg);
}

/* 动画标签 */
.animation-label {
    margin-top: 20px;
    padding: 8px 20px;
    background: linear-gradient(135deg, #11998e 0%, #38ef7d 100%);
    color: white;
    border-radius: 20px;
    font-size: 14px;
    font-weight: 500;
    box-shadow: 0 4px 16px rgba(17,153,142,0.3);
}

/* 动画阶段 */
.anim-step {
    opacity: 0;
    transform: scale(0.9);
    transition: all 0.4s ease;
}

.anim-step.active {
    opacity: 1;
    transform: scale(1);
}

/* 响应式 */
@media (max-width: 768px) {
    .locker-animation-container {
        width: 280px;
        height: 380px;
    }
    .locker-screen {
        width: 160px;
        height: 110px;
    }
    .scan-frame {
        width: 55px;
        height: 55px;
    }
    .state-success i {
        font-size: 36px;
    }
    .locker-unit {
        width: 55px;
        height: 110px;
    }
}

/* Phase 2: Doors open (left swings left, right swings right) */
.locker-cabinet .locker-left-door.open-left {
    transform: perspective(800px) rotateY(82deg);
}
.locker-cabinet .locker-right-door.open-right {
    transform: perspective(800px) rotateY(-82deg);
}

/* ==================== PHASE 3: Item Floats In ==================== */
.floating-item {
    width: 56px; height: 56px; border-radius: 14px;
    background: rgba(0,113,227,0.12);
    border: 1px solid rgba(0,113,227,0.2);
    display: flex; align-items: center; justify-content: center;
    animation: itemDrop 1.8s cubic-bezier(0.34,1.56,0.64,1) forwards;
    box-shadow: 0 0 20px rgba(0,113,227,0.15);
}
.floating-item i {
    font-size: 26px; color: rgba(0,113,227,0.7);
}
@keyframes itemDrop {
    0% { transform: translateY(-60px) scale(0.4); opacity: 0; }
    30% { transform: translateY(5px) scale(1.08); opacity: 1; }
    60% { transform: translateY(-8px) scale(1); opacity: 1; }
    100% { transform: translateY(0) scale(1); opacity: 1; }
}

/* ==================== PHASE 4: Success Badge ==================== */
.success-badge {
    display: flex; flex-direction: column; align-items: center; gap: 14px;
    animation: badgePop 0.5s cubic-bezier(0.34,1.56,0.64,1);
}
.success-badge i {
    font-size: 64px; color: #34c759;
    filter: drop-shadow(0 0 16px rgba(52,199,89,0.5));
    animation: successPulse 1s ease-in-out infinite;
}
.success-badge span {
    font-size: 22px; font-weight: 700;
    color: #34c759; letter-spacing: 0.04em;
    text-shadow: 0 0 20px rgba(52,199,89,0.4);
}
@keyframes badgePop {
    0% { transform: scale(0.5); opacity: 0; }
    100% { transform: scale(1); opacity: 1; }
}
@keyframes successPulse {
    0%, 100% { transform: scale(1); }
    50% { transform: scale(1.08); }
}

/* Phase label */
.phase-label {
    margin-top: 24px; font-size: 14px; font-weight: 500;
    color: rgba(0,113,227,0.8); letter-spacing: 0.12em;
    animation: labelBlink 1s ease-in-out infinite;
}
@keyframes labelBlink {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.35; }
}

/* Phase 5: Fadeout */
.anim-phase.phase-fadeout {
    background: radial-gradient(circle, transparent 0%, rgba(13,13,26,0.6) 100%);
}
.hero-animation.running .phase-fadeout {
    animation: fadeOutPulse 1s ease-in-out;
}
@keyframes fadeOutPulse {
    0% { opacity: 0; }
    30% { opacity: 1; }
    100% { opacity: 0; }
}

/* Closed door state for success phase */
.locker-cabinet .locker-left-door.closed-left { transform: none; }
.locker-cabinet .locker-right-door.closed-right { transform: none; }

/* ==================== Responsive ==================== */
@media (max-width: 768px) {
    .hero-animation { width: 280px; height: 370px; }
    .scan-face { width: 130px; height: 130px; }
    .scan-ring-1 { width: 100px; height: 100px; }
    .scan-ring-2 { width: 122px; height: 122px; }
    .scan-ring-3 { width: 144px; height: 144px; }
    .scan-icon { width: 82px; height: 82px; }
    .scan-icon i { font-size: 36px; }
    .locker-cabinet { width: 130px; height: 180px; }
    .success-badge i { font-size: 52px; }
    .success-badge span { font-size: 18px; }
}

/* ==================== AI 客服样式 - Premium Light Style ==================== */
.ai-chat-float {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 60px;
    height: 60px;
    background: linear-gradient(135deg, var(--primary) 0%, #5a5ce6 100%);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    box-shadow: 0 6px 24px rgba(0,113,227,0.35);
    z-index: 1000;
    transition: transform 0.3s cubic-bezier(0.34, 1.56, 0.64, 1),
                box-shadow 0.3s ease;
}
.ai-chat-float:hover {
    transform: scale(1.1);
    box-shadow: 0 10px 32px rgba(0,113,227,0.45);
}
.ai-chat-float span {
    font-size: 24px;
    color: white;
}
.ai-chat-float span i {
    color: white;
}
.ai-chat-float::after {
    content: '';
    position: absolute;
    top: -2px;
    right: -2px;
    width: 14px;
    height: 14px;
    background: #ff3b30;
    border-radius: 50%;
    border: 2px solid white;
    animation: pulse 2s infinite;
}
@keyframes pulse {
    0%, 100% { transform: scale(1); opacity: 1; }
    50% { transform: scale(1.15); opacity: 0.8; }
}

.ai-chat-modal {
    position: fixed;
    bottom: 100px;
    right: 30px;
    width: 380px;
    height: 520px;
    background: white;
    border-radius: 20px;
    box-shadow: 0 20px 60px rgba(0,0,0,0.15), 0 4px 20px rgba(0,0,0,0.08);
    display: none;
    flex-direction: column;
    z-index: 1001;
    overflow: hidden;
    border: 1px solid rgba(0,0,0,0.06);
}
.ai-chat-modal.active {
    display: flex;
    animation: slideUp 0.35s cubic-bezier(0.34, 1.56, 0.64, 1);
}
@keyframes slideUp {
    from { opacity: 0; transform: translateY(20px) scale(0.95); }
    to { opacity: 1; transform: translateY(0) scale(1); }
}

.ai-chat-header {
    display: flex;
    align-items: center;
    padding: 18px 20px;
    background: linear-gradient(135deg, var(--primary) 0%, #5a5ce6 100%);
    color: white;
}
.ai-chat-avatar {
    width: 40px;
    height: 40px;
    background: rgba(255,255,255,0.2);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
}
.ai-chat-avatar i { font-size: 20px; color: white; }
.ai-chat-info {
    flex: 1;
    margin-left: 12px;
}
.ai-chat-info h4 {
    font-size: 15px;
    font-weight: 600;
    margin: 0;
}
.ai-status {
    font-size: 11px;
    opacity: 0.9;
    display: flex;
    align-items: center;
}
.ai-status.online::before {
    content: '';
    display: inline-block;
    width: 8px;
    height: 8px;
    background: #34c759;
    border-radius: 50%;
    margin-right: 6px;
}
.ai-chat-close {
    background: none;
    border: none;
    color: white;
    font-size: 18px;
    cursor: pointer;
    opacity: 0.8;
    transition: opacity 0.2s ease;
}
.ai-chat-close:hover { opacity: 1; }

.ai-chat-body {
    flex: 1;
    padding: 20px;
    overflow-y: auto;
    background: #f8f9ff;
}
.ai-message {
    display: flex;
    gap: 10px;
    margin-bottom: 16px;
}
.ai-message-avatar {
    width: 32px;
    height: 32px;
    background: linear-gradient(135deg, var(--primary) 0%, #5a5ce6 100%);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}
.ai-message-avatar i { font-size: 14px; color: white; }
.ai-message-content {
    background: white;
    padding: 14px 18px;
    border-radius: 18px 18px 18px 4px;
    box-shadow: 0 2px 8px rgba(0,0,0,0.06);
}
.ai-message-content p {
    margin: 0 0 8px;
    font-size: 14px;
    line-height: 1.5;
}
.ai-message-content p:last-child { margin-bottom: 0; }
.ai-message-content ul {
    margin: 8px 0;
    padding-left: 20px;
}
.ai-message-content li {
    font-size: 13px;
    margin-bottom: 4px;
    color: #555;
}

.user-message {
    display: flex;
    justify-content: flex-end;
    margin-bottom: 16px;
}
.user-message p {
    background: linear-gradient(135deg, var(--primary) 0%, #5a5ce6 100%);
    color: white;
    padding: 14px 18px;
    border-radius: 18px 18px 4px 18px;
    font-size: 14px;
    max-width: 80%;
    margin: 0;
    box-shadow: 0 2px 8px rgba(0,113,227,0.2);
}

.ai-chat-input {
    display: flex;
    gap: 10px;
    padding: 16px 20px;
    background: white;
    border-top: 1px solid rgba(0,0,0,0.06);
}
.ai-chat-input input {
    flex: 1;
    padding: 12px 16px;
    border: 1.5px solid rgba(0,0,0,0.08);
    border-radius: 24px;
    font-size: 14px;
    outline: none;
    transition: border-color 0.2s ease, box-shadow 0.2s ease;
}
.ai-chat-input input:focus {
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(0,113,227,0.1);
}
.ai-chat-input button {
    width: 44px;
    height: 44px;
    background: linear-gradient(135deg, var(--primary) 0%, #5a5ce6 100%);
    border: none;
    border-radius: 50%;
    color: white;
    cursor: pointer;
    transition: transform 0.2s ease, box-shadow 0.2s ease;
}
.ai-chat-input button:hover {
    transform: scale(1.05);
    box-shadow: 0 4px 12px rgba(0,113,227,0.35);
}

@media (max-width: 768px) {
    .ai-chat-modal {
        width: calc(100% - 20px);
        right: 10px;
        bottom: 90px;
        height: 60vh;
    }
    .ai-chat-float {
        bottom: 20px;
        right: 20px;
        width: 54px;
        height: 54px;
    }
}

/* ================================================
   Pain Points Section - Problem First Design
   ================================================ */
.pain-points-section {
    padding: 100px 24px;
    background: var(--bg);
}

.pain-points-section .section-header {
    text-align: center;
    margin-bottom: 60px;
}

.pain-points-section .section-title {
    font-size: 42px;
    font-weight: 700;
    color: var(--text);
    margin-bottom: 16px;
}

.pain-points-section .section-subtitle {
    font-size: 18px;
    color: var(--text-secondary);
}

.pain-cards-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
    max-width: 1400px;
    margin: 0 auto;
}

@media (max-width: 1200px) {
    .pain-cards-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .pain-cards-grid {
        grid-template-columns: 1fr;
    }
    .pain-points-section .section-title {
        font-size: 28px;
    }
}

.pain-card {
    background: white;
    border-radius: 20px;
    padding: 28px;
    border: 1px solid rgba(0,0,0,0.06);
    transition: all 0.3s ease;
    display: flex;
    flex-direction: column;
}

.pain-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 12px 40px rgba(0,0,0,0.1);
    border-color: var(--primary);
}

.pain-card-header {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 20px;
    padding-bottom: 16px;
    border-bottom: 2px solid var(--bg-secondary);
}

.pain-icon {
    font-size: 32px;
}

.pain-card-header h3 {
    font-size: 18px;
    font-weight: 600;
    color: var(--text);
}

/* 左右对比布局 */
.pain-comparison {
    display: flex;
    gap: 16px;
    margin: 16px 0;
}

.pain-left,
.pain-right {
    flex: 1;
    padding: 12px;
    border-radius: 10px;
}

.pain-left {
    background: #fff5f5;
    border: 1px solid #ffe0e0;
}

.pain-right {
    background: #f0fff4;
    border: 1px solid #d0f0dc;
}

.pain-left h4,
.pain-right h4 {
    font-size: 13px;
    font-weight: 600;
    margin-bottom: 10px;
}

.pain-left h4 {
    color: #d63031;
}

.pain-right h4 {
    color: #00b894;
}

.pain-comparison .problem-item,
.pain-comparison .solution-item {
    font-size: 13px;
    padding: 6px 0;
    border-bottom: 1px dashed rgba(0,0,0,0.05);
    color: #333;
}

.pain-comparison .problem-item:last-child,
.pain-comparison .solution-item:last-child {
    border-bottom: none;
}

/* AI安防场景卡片 */
.ai-scene-cards {
    display: flex;
    gap: 20px;
    margin-bottom: 40px;
    flex-wrap: wrap;
}

.ai-scene-card {
    flex: 1;
    min-width: 200px;
    background: linear-gradient(135deg, #f8f9ff 0%, #fff5f0 100%);
    border: 1px solid rgba(0,113,227,0.1);
    border-radius: 16px;
    padding: 20px;
}

.ai-scene-card h4 {
    font-size: 16px;
    font-weight: 600;
    color: var(--text);
    margin-bottom: 8px;
}

.ai-scene-card p {
    font-size: 13px;
    color: var(--text-secondary);
    line-height: 1.5;
}

.pain-problems {
    flex: 1;
    margin-bottom: 20px;
}

.problem-item {
    display: flex;
    align-items: flex-start;
    gap: 10px;
    margin-bottom: 12px;
    font-size: 14px;
    color: #666;
    line-height: 1.5;
}

.problem-x {
    flex-shrink: 0;
    font-size: 14px;
}

.pain-solutions {
    background: linear-gradient(135deg, rgba(0,113,227,0.04) 0%, rgba(0,113,227,0.08) 100%);
    border-radius: 12px;
    padding: 16px;
    margin-bottom: 20px;
}

.pain-solutions h4 {
    font-size: 14px;
    font-weight: 600;
    color: var(--primary);
    margin-bottom: 12px;
}

.pain-solutions ul {
    list-style: none;
}

.pain-solutions li {
    font-size: 13px;
    color: var(--text);
    margin-bottom: 8px;
    padding-left: 16px;
    position: relative;
}

.pain-solutions li::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: var(--primary);
    font-weight: 600;
}

.pain-solutions li strong {
    color: var(--text);
}

.pain-card-cta {
    display: inline-block;
    color: var(--primary);
    font-size: 14px;
    font-weight: 500;
    transition: transform 0.2s ease;
}

.pain-card-cta:hover {
    transform: translateX(4px);
}

.pain-cta {
    text-align: center;
    margin-top: 48px;
}

/* Hero Problem Intro Styles */
.hero-problem-tag {
    font-size: 14px;
    color: var(--text-secondary);
    margin-bottom: 16px;
    letter-spacing: 0.5px;
}

.hero-title {
    font-size: 48px;
    font-weight: 700;
    line-height: 1.3;
    margin-bottom: 24px;
}

.problem-pain {
    display: block;
    color: var(--text);
    font-weight: 600;
}

.hero-solution-statement {
    font-size: 22px;
    color: var(--text-secondary);
    margin-bottom: 32px;
    line-height: 1.6;
}

.solution-highlight {
    color: var(--primary);
    font-weight: 700;
}

.highlight-num {
    color: var(--primary);
    font-weight: 700;
    font-size: 28px;
}

.industry-quicklinks {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    margin-bottom: 32px;
}

.quicklink-item {
    padding: 10px 20px;
    background: rgba(0,113,227,0.08);
    border-radius: 24px;
    font-size: 14px;
    font-weight: 500;
    color: var(--primary);
    transition: all 0.2s ease;
}

.quicklink-item:hover {
    background: var(--primary);
    color: white;
    transform: translateY(-2px);
}

@media (max-width: 768px) {
    .hero-title {
        font-size: 28px;
    }
    .hero-solution-statement {
        font-size: 18px;
    }
    .pain-points-section {
        padding: 60px 16px;
    }
    .pain-card {
        padding: 20px;
    }
}

/* Products List Section - Vertical Layout */
.products-list-section {
    padding: 80px 24px;
    background: var(--bg);
}

.products-list {
    max-width: 1000px;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.product-list-item {
    display: flex;
    align-items: center;
    gap: 24px;
    padding: 24px 28px;
    background: white;
    border: 1px solid rgba(0,0,0,0.06);
    border-radius: 20px;
    cursor: pointer;
    transition: all 0.3s ease;
    text-decoration: none;
    color: inherit;
}

.product-list-item:hover {
    border-color: var(--primary);
    box-shadow: 0 4px 20px rgba(0,113,227,0.1);
}

.product-list-icon {
    width: 80px;
    height: 80px;
    border-radius: 18px;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    font-size: 32px;
}

.product-list-content {
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.product-list-content h3 {
    font-size: 22px;
    font-weight: 700;
    color: var(--text);
}

.product-list-content p {
    font-size: 15px;
    color: var(--text-secondary);
    line-height: 1.5;
}

.product-list-arrow {
    width: 50px;
    height: 50px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--primary);
    opacity: 0.6;
    flex-shrink: 0;
}

.product-list-item:hover .product-list-arrow {
    opacity: 1;
    transform: translateX(4px);
}

@media (max-width: 768px) {
    .products-list-section {
        padding: 60px 16px;
    }
    .product-list-item {
        padding: 16px;
        flex-wrap: wrap;
    }
    .product-list-icon {
        width: 60px;
        height: 60px;
        font-size: 24px;
    }
    .product-list-content h3 {
        font-size: 18px;
    }
    .product-list-content p {
        font-size: 13px;
    }
}

/* 文字Logo样式 */
.client-text-logo {
    font-size: 16px;
    font-weight: 600;
    color: var(--text-secondary);
    letter-spacing: 0.5px;
}

/* ================================================
   产品卡片高级样式
   ================================================ */
.products-showcase {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
    padding: 60px 0;
}

@media (max-width: 968px) {
    .products-showcase { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 640px) {
    .products-showcase { grid-template-columns: 1fr; }
}

.product-card {
    background: linear-gradient(135deg, #ffffff 0%, #f8f9ff 100%);
    border-radius: 24px;
    padding: 32px;
    transition: all 0.4s cubic-bezier(0.16, 1, 0.3, 1);
    border: 1px solid rgba(0, 0, 0, 0.06);
    position: relative;
    overflow: hidden;
    opacity: 0;
    transform: translateY(30px);
    animation: cardReveal 0.6s cubic-bezier(0.16, 1, 0.3, 1) forwards;
}

.product-card:nth-child(1) { animation-delay: 0.1s; }
.product-card:nth-child(2) { animation-delay: 0.2s; }
.product-card:nth-child(3) { animation-delay: 0.3s; }
.product-card:nth-child(4) { animation-delay: 0.4s; }
.product-card:nth-child(5) { animation-delay: 0.5s; }
.product-card:nth-child(6) { animation-delay: 0.6s; }

@keyframes cardReveal {
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.product-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: var(--card-color, #0071e3);
    opacity: 0;
    transition: opacity 0.3s ease;
}

.product-card:hover::before {
    opacity: 1;
}

.product-card:hover {
    transform: translateY(-8px);
    box-shadow: 
        0 20px 60px rgba(0, 0, 0, 0.12),
        0 8px 24px rgba(0, 0, 0, 0.08);
    border-color: transparent;
}

.product-card-icon {
    width: 64px;
    height: 64px;
    border-radius: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 28px;
    color: white;
    background: linear-gradient(135deg, var(--card-color, #0071e3) 0%, color-mix(in srgb, var(--card-color, #0071e3) 80%, white) 100%);
    margin-bottom: 24px;
    transition: all 0.4s cubic-bezier(0.16, 1, 0.3, 1);
    box-shadow: 0 8px 24px color-mix(in srgb, var(--card-color, #0071e3) 30%, transparent);
}

.product-card:hover .product-card-icon {
    transform: scale(1.1) rotate(-3deg);
    box-shadow: 0 12px 32px color-mix(in srgb, var(--card-color, #0071e3) 40%, transparent);
}

.product-card-title {
    font-size: 22px;
    font-weight: 700;
    color: var(--text);
    margin-bottom: 8px;
    letter-spacing: -0.3px;
}

.product-card-desc {
    font-size: 15px;
    color: var(--text-secondary);
    line-height: 1.6;
    margin-bottom: 24px;
}

.product-card-features {
    display: flex;
    flex-direction: column;
    gap: 12px;
    margin-bottom: 28px;
}

.product-card-feature {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 14px;
    color: var(--text);
}

.product-card-feature i {
    color: var(--card-color, #0071e3);
    font-size: 14px;
    width: 20px;
    text-align: center;
}

.product-card-btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 14px 28px;
    background: linear-gradient(135deg, var(--card-color, #0071e3) 0%, color-mix(in srgb, var(--card-color, #0071e3) 85%, white) 100%);
    color: white;
    border-radius: 12px;
    font-size: 15px;
    font-weight: 600;
    text-decoration: none;
    transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
    box-shadow: 0 4px 16px color-mix(in srgb, var(--card-color, #0071e3) 25%, transparent);
}

.product-card-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 24px color-mix(in srgb, var(--card-color, #0071e3) 35%, transparent);
}

/* 各产品颜色 */
.product-card.face { --card-color: #0071e3; }
.product-card.palm { --card-color: #5a5ce6; }
.product-card.barcode { --card-color: #34c759; }
.product-card.password { --card-color: #ff9500; }
.product-card.qrpay { --card-color: #ff2d55; }
.product-card.ai-security { --card-color: #ff3b30; }

/* ================================================
   Hero区域入场动画
   ================================================ */
@keyframes fadeSlideUp {
    from { opacity: 0; transform: translateY(24px); }
    to   { opacity: 1; transform: translateY(0); }
}

.hero-eyebrow {
    animation: fadeSlideUp 600ms cubic-bezier(0.16, 1, 0.3, 1) forwards;
    opacity: 0;
    animation-delay: 0.1s;
}

.hero-title {
    animation: fadeSlideUp 600ms cubic-bezier(0.16, 1, 0.3, 1) forwards;
    opacity: 0;
    animation-delay: 0.2s;
}

.hero-tagline {
    animation: fadeSlideUp 600ms cubic-bezier(0.16, 1, 0.3, 1) forwards;
    opacity: 0;
    animation-delay: 0.3s;
}

.hero-desc {
    animation: fadeSlideUp 600ms cubic-bezier(0.16, 1, 0.3, 1) forwards;
    opacity: 0;
    animation-delay: 0.4s;
}

.hero-buttons {
    animation: fadeSlideUp 600ms cubic-bezier(0.16, 1, 0.3, 1) forwards;
    opacity: 0;
    animation-delay: 0.5s;
}

.hero-stats {
    animation: fadeSlideUp 600ms cubic-bezier(0.16, 1, 0.3, 1) forwards;
    opacity: 0;
    animation-delay: 0.6s;
}

/* 整体背景优化 */
.hero {
    background: linear-gradient(180deg, #ffffff 0%, #f8fafc 40%, #f1f5f9 100%);
}

/* ================================================