/* ============================================
   KingClean - Professional Design System
   Inspired by Philips & Modern Corporate Sites
   ============================================ */

/* CSS Variables */
:root {
    /* Primary Brand Colors */
    --color-brand: #1e50ae;
    --color-brand-hover: #2a5fc4;
    --color-brand-light: #e8eef8;
    --color-brand-dark: #153d8a;

    /* Background Colors */
    --color-bg-primary: #ffffff;
    --color-bg-secondary: #f8f9fa;
    --color-bg-tertiary: #f0f2f5;
    --color-surface: #e8eaed;

    /* Text Colors */
    --color-text-primary: #1a1a1a;
    --color-text-secondary: #4a4a4a;
    --color-text-tertiary: #6b7280;
    --color-text-muted: #9ca3af;

    /* Accent Colors */
    --color-border: #e5e7eb;
    --color-border-light: #f3f4f6;
    --color-success: #10b981;
    --color-warning: #f59e0b;
    --color-error: #ef4444;

    /* Typography */
    --font-primary: Arial, Helvetica, sans-serif;
    --font-display: Arial, Helvetica, sans-serif;

    /* Spacing Scale */
    --space-xs: 4px;
    --space-sm: 8px;
    --space-md: 16px;
    --space-lg: 24px;
    --space-xl: 32px;
    --space-2xl: 48px;
    --space-3xl: 64px;
    --space-4xl: 96px;

    /* Transitions */
    --transition-fast: 0.15s ease;
    --transition-base: 0.25s ease;
    --transition-slow: 0.4s ease;

    /* Shadows */
    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.05);
    --shadow-base: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -2px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -4px rgba(0, 0, 0, 0.1);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 8px 10px -6px rgba(0, 0, 0, 0.1);
    --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.1);

    /* Aliases */
    --color-white: #ffffff;
    --color-text: #1a1a1a;
    --color-text-light: #ffffff;
}

/* Reset & Base */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    font-size: 16px;
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-primary);
    background-color: var(--color-bg-primary);
    color: var(--color-text-primary);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

a {
    color: inherit;
    text-decoration: none;
    transition: color var(--transition-fast);
}

button {
    font-family: inherit;
    border: none;
    background: none;
    cursor: pointer;
}

img {
    max-width: 100%;
    height: auto;
}

/* Container */
.container {
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 var(--space-lg);
}

@media (min-width: 640px) {
    .container {
        padding: 0 var(--space-xl);
    }
}

@media (min-width: 1024px) {
    .container {
        padding: 0 var(--space-2xl);
    }
}

/* ============================================
   Navigation - Apple Style
   ============================================ */
.nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    height: 52px;
    background: rgba(251, 251, 253, 0.82);
    backdrop-filter: saturate(180%) blur(20px);
    -webkit-backdrop-filter: saturate(180%) blur(20px);
    z-index: 1000;
    border-bottom: 1px solid rgba(0, 0, 0, 0.08);
    transition: all var(--transition-base);
    will-change: transform, opacity;
    transform: translateZ(0);
    -webkit-transform: translateZ(0);
    -webkit-backface-visibility: hidden;
    backface-visibility: hidden;
}

/* Scroll Progress Bar */
.nav-progress {
    position: absolute;
    top: 0;
    left: 0;
    height: 2px;
    background: var(--color-brand);
    width: 0%;
    transition: width 0.1s linear;
    z-index: 1001;
}

.nav.scrolled {
    box-shadow: 0 1px 0 rgba(0, 0, 0, 0.08);
}

.nav-container {
    max-width: 1040px;
    margin: 0 auto;
    padding: 0 14px;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.nav-logo {
    display: flex;
    align-items: center;
    text-decoration: none;
}

.nav-logo:hover {
    opacity: 0.85;
}

.logo-img {
    height: 26px;
    width: auto;
    object-fit: contain;
    display: block;
}

.logo-text {
    font-family: var(--font-display);
    font-size: 24px;
    font-weight: 700;
    color: var(--color-brand);
    letter-spacing: -0.5px;
}

.nav-main {
    display: flex;
    align-items: center;
    gap: 24px;
}

.nav-link {
    font-size: 12px;
    font-weight: 400;
    color: #1d1d1f;
    transition: color var(--transition-fast);
    display: flex;
    align-items: center;
    gap: 6px;
    padding: 0;
    position: relative;
    opacity: 0.86;
}

.nav-link::after {
    content: none;
}

.nav-link:hover,
.nav-link.active {
    color: #000;
    opacity: 1;
}

.nav-dropdown {
    position: relative;
}

.dropdown-menu {
    position: absolute;
    top: calc(100% + var(--space-md));
    left: 50%;
    transform: translateX(-50%) translateY(-6px) scale(0.98);
    transform-origin: top center;
    background: white;
    border: 1px solid var(--color-border);
    border-radius: 16px;
    padding: var(--space-xl);
    box-shadow: var(--shadow-xl);
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
    transition: opacity 0.2s ease, transform 0.22s ease, visibility 0.2s ease;
    min-width: 640px;
}

.nav-dropdown.open .dropdown-menu {
    opacity: 1;
    visibility: visible;
    pointer-events: auto;
    transform: translateX(-50%) translateY(0) scale(1);
}

.nav-dropdown .has-dropdown svg {
    transition: transform 0.2s ease;
}

.nav-dropdown.open .has-dropdown svg {
    transform: rotate(180deg);
}

.dropdown-grid {
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    gap: var(--space-lg);
}

.dropdown-col h4 {
    font-size: 13px;
    font-weight: 600;
    color: var(--color-text-primary);
    margin-bottom: var(--space-md);
    padding-bottom: var(--space-sm);
    border-bottom: 1px solid var(--color-border);
}

.dropdown-col a {
    display: block;
    font-size: 14px;
    color: var(--color-text-secondary);
    padding: var(--space-xs) 0;
    transition: color var(--transition-fast);
}

.dropdown-col a:hover {
    color: var(--color-brand);
}

.nav-right {
    display: flex;
    align-items: center;
    gap: 6px;
}

.mobile-menu-toggle {
    display: none;
    width: 34px;
    height: 34px;
    border-radius: 999px;
    align-items: center;
    justify-content: center;
    color: var(--color-text-secondary);
    border: 1px solid rgba(0, 0, 0, 0.12);
    background: rgba(255, 255, 255, 0.72);
    position: relative;
    z-index: 1002;
    transition: transform 0.2s ease, background 0.2s ease;
}

.mobile-search-toggle {
    display: none;
    width: 34px;
    height: 34px;
    border-radius: 999px;
    align-items: center;
    justify-content: center;
    color: var(--color-text-secondary);
    border: 1px solid rgba(0, 0, 0, 0.12);
    background: rgba(255, 255, 255, 0.72);
    margin-right: 8px;
}

.mobile-menu-toggle .bar {
    position: absolute;
    width: 14px;
    height: 1.5px;
    background: currentColor;
    border-radius: 1px;
    transition: transform 0.25s ease, opacity 0.2s ease;
}

.mobile-menu-toggle .bar:nth-child(1) {
    transform: translateY(-4px);
}

.mobile-menu-toggle .bar:nth-child(3) {
    transform: translateY(4px);
}

.nav.mobile-open .mobile-menu-toggle .bar:nth-child(1) {
    transform: rotate(45deg);
}

.nav.mobile-open .mobile-menu-toggle .bar:nth-child(2) {
    opacity: 0;
}

.nav.mobile-open .mobile-menu-toggle .bar:nth-child(3) {
    transform: rotate(-45deg);
}

.mobile-nav-panel {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    overflow-y: auto;
    background: rgba(251, 251, 253, 0.97);
    backdrop-filter: saturate(180%) blur(20px);
    -webkit-backdrop-filter: saturate(180%) blur(20px);
    transform: translateY(-6px);
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
    transition: all var(--transition-base);
    z-index: 1001;
    padding: 64px 18px 24px;
    will-change: transform, opacity;
    -webkit-transform: translateZ(0);
    transform: translateZ(0);
    -webkit-backface-visibility: hidden;
    backface-visibility: hidden;
}

.nav.mobile-open .mobile-nav-panel,
.mobile-nav-panel.is-open {
    display: block;
    transform: translateY(0);
    opacity: 1;
    visibility: visible;
    pointer-events: auto;
}

.mobile-nav-overlay {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.34);
    z-index: 1000;
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
    transition: opacity 0.2s ease, visibility 0.2s ease;
}

.mobile-nav-panel[hidden],
.mobile-nav-overlay[hidden] {
    display: none !important;
}

.nav.mobile-open .mobile-nav-overlay,
.mobile-nav-overlay.is-open {
    opacity: 1;
    visibility: visible;
    pointer-events: auto;
}

.mobile-nav-top {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 10px;
    padding-bottom: 8px;
    border-bottom: 1px solid var(--color-border);
}

.mobile-nav-title {
    font-size: 14px;
    font-weight: 600;
    color: #1d1d1f;
    letter-spacing: 0.2px;
}

.mobile-nav-close {
    width: 30px;
    height: 30px;
    border-radius: 999px;
    border: 1px solid rgba(0, 0, 0, 0.14);
    color: #1d1d1f;
    font-size: 18px;
    line-height: 1;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    background: rgba(255, 255, 255, 0.7);
}

.mobile-nav-link {
    display: block;
    padding: 14px 2px;
    font-size: 17px;
    font-weight: 400;
    color: #1d1d1f;
    border-bottom: 1px solid var(--color-border-light);
}

.mobile-nav-link:active,
.mobile-nav-sublink:active,
.mobile-nav-utility:active {
    background: rgba(30, 80, 174, 0.08);
}

.mobile-nav-group {
    margin-top: var(--space-sm);
}

.mobile-nav-group-title {
    font-size: 11px;
    font-weight: 600;
    letter-spacing: 1px;
    text-transform: uppercase;
    color: var(--color-text-muted);
    margin: var(--space-md) 0 var(--space-sm);
}

.mobile-nav-group-toggle {
    width: 100%;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 10px 2px;
    border-bottom: 1px solid var(--color-border-light);
    font-size: 12px;
    font-weight: 600;
    letter-spacing: 1px;
    text-transform: uppercase;
    color: var(--color-text-muted);
}

.mobile-nav-group-icon {
    font-size: 18px;
    font-weight: 400;
    line-height: 1;
    color: #6b7280;
}

.mobile-nav-group-body[hidden] {
    display: none;
}

.mobile-nav-sublink {
    display: block;
    padding: 12px 2px;
    font-size: 14px;
    color: #424245;
}

.mobile-nav-utility {
    display: block;
    width: 100%;
    text-align: left;
    padding: 12px 2px;
    font-size: 14px;
    color: #1d1d1f;
    border-top: 1px solid var(--color-border-light);
}

.mobile-nav-reset {
    color: var(--color-brand);
    font-weight: 500;
}

.mobile-menu-toggle:focus-visible,
.mobile-nav-close:focus-visible,
.mobile-nav-link:focus-visible,
.mobile-nav-sublink:focus-visible,
.mobile-nav-utility:focus-visible {
    outline: 2px solid var(--color-brand);
    outline-offset: 2px;
    border-radius: 8px;
}

.mobile-nav-empty {
    margin-top: var(--space-md);
}

.mobile-nav-empty p {
    font-size: 13px;
    color: var(--color-text-tertiary);
    margin-bottom: var(--space-sm);
}

.mobile-nav-footer {
    margin-top: 10px;
    border-top: 1px solid var(--color-border);
    padding-top: 10px;
}

.mobile-search-panel {
    position: fixed;
    inset: 0;
    z-index: 1003;
    background: rgba(251, 251, 253, 0.98);
    padding: 0;
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
    transform: translateY(-6px);
    transition: opacity 0.28s ease, visibility 0.28s ease, transform 0.28s ease;
}

.mobile-search-shell {
    padding: 64px 18px 24px;
    min-height: 100%;
    box-sizing: border-box;
}

.mobile-search-panel.is-open {
    opacity: 1;
    visibility: visible;
    pointer-events: auto;
    transform: translateY(0);
}

.mobile-search-overlay {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.34);
    z-index: 1002;
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
    transition: opacity 0.2s ease, visibility 0.2s ease;
}

.mobile-search-overlay.is-open {
    opacity: 1;
    visibility: visible;
    pointer-events: auto;
}

.mobile-search-top {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 10px;
}

.mobile-search-title {
    font-size: 18px;
    font-weight: 600;
}

.mobile-search-close {
    width: 30px;
    height: 30px;
    border-radius: 999px;
    border: 1px solid rgba(0, 0, 0, 0.14);
    font-size: 18px;
}

.mobile-search-input {
    width: 100%;
    height: 40px;
    border: 1px solid var(--color-border);
    border-radius: 10px;
    padding: 0 14px 0 44px;
    margin-bottom: 12px;
    font-size: 14px;
    background-color: #fff;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='18' height='18' fill='none' viewBox='0 0 20 20'%3E%3Ccircle cx='9' cy='9' r='6' stroke='%2394a3b8' stroke-width='1.5'/%3E%3Cpath stroke='%2394a3b8' stroke-width='1.5' stroke-linecap='round' d='M13.5 13.5 17 17'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: 14px center;
    background-size: 18px 18px;
    transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.mobile-search-input:focus {
    outline: none;
    border-color: rgba(30, 80, 174, 0.45);
    box-shadow: 0 0 0 3px rgba(30, 80, 174, 0.12);
}

.mobile-search-results {
    display: grid;
    gap: 8px;
}

.mobile-search-result-link {
    display: block;
    padding: 12px;
    border: 1px solid var(--color-border-light);
    border-radius: 10px;
    background: #fff;
    transition: border-color 0.15s ease, background 0.15s ease, box-shadow 0.15s ease;
}

.mobile-search-result-link:hover {
    border-color: rgba(30, 80, 174, 0.22);
    background: var(--color-brand-light);
}

.mobile-search-empty {
    font-size: 13px;
    color: #6b7280;
    padding: 8px 2px;
}

@media (prefers-reduced-motion: reduce) {
    .mobile-nav-panel,
    .mobile-nav-overlay,
    .mobile-menu-toggle,
    .mobile-menu-toggle .bar,
    .mobile-search-panel,
    .mobile-search-overlay {
        transition: none !important;
    }
}

@media (min-width: 641px) {
    .site-search-panel.mobile-search-panel {
        inset: auto;
        left: 50%;
        right: auto;
        top: max(72px, 11vh);
        bottom: auto;
        width: min(440px, calc(100vw - 32px));
        max-height: min(580px, calc(100vh - 96px));
        overflow: hidden;
        border-radius: 20px;
        border: 1px solid rgba(15, 23, 42, 0.08);
        background: #ffffff;
        box-shadow: 0 25px 50px -12px rgba(15, 23, 42, 0.2), 0 0 0 1px rgba(255, 255, 255, 0.9) inset;
        transform: translateX(-50%) translateY(-14px) scale(0.97);
        transform-origin: top center;
    }

    .site-search-panel.mobile-search-panel.is-open {
        transform: translateX(-50%) translateY(0) scale(1);
    }

    .site-search-panel .mobile-search-shell {
        min-height: 0;
        max-height: min(580px, calc(100vh - 96px));
        overflow-y: auto;
        -webkit-overflow-scrolling: touch;
        padding: 22px 24px 20px;
    }

    .mobile-search-overlay {
        background: rgba(15, 23, 42, 0.42);
        backdrop-filter: blur(10px);
        -webkit-backdrop-filter: blur(10px);
    }

    .site-search-panel .mobile-search-title {
        font-size: 20px;
        font-family: var(--font-display);
        font-weight: 600;
        letter-spacing: -0.02em;
        color: var(--color-text-primary);
    }

    .site-search-panel .mobile-search-close {
        background: rgba(248, 250, 252, 0.95);
        transition: background 0.15s ease, border-color 0.15s ease;
    }

    .site-search-panel .mobile-search-close:hover {
        background: var(--color-brand-light);
        border-color: rgba(30, 80, 174, 0.25);
    }

    .site-search-panel .mobile-search-input {
        height: 46px;
        border-radius: 12px;
        font-size: 15px;
        border-color: rgba(15, 23, 42, 0.1);
        box-shadow: 0 1px 2px rgba(15, 23, 42, 0.04);
    }

    .site-search-panel .mobile-search-result-link {
        padding: 14px 16px;
        border-radius: 12px;
    }

    .site-search-panel .mobile-search-result-link:hover {
        box-shadow: 0 1px 3px rgba(30, 80, 174, 0.08);
    }
}

.search-btn {
    padding: 6px;
    color: var(--color-text-secondary);
    transition: all var(--transition-fast);
    border-radius: 50%;
}

.search-btn:hover {
    color: var(--color-brand);
    background: var(--color-brand-light);
}

.search-btn:focus-visible {
    outline: 2px solid var(--color-brand);
    outline-offset: 2px;
}

.lang-btn {
    font-size: 12px;
    font-weight: 400;
    color: var(--color-text-secondary);
    padding: 5px 8px;
    border-radius: 999px;
    transition: all var(--transition-fast);
}

.lang-btn:hover {
    color: var(--color-brand);
    background: var(--color-brand-light);
}

/* ============================================
   Hero Section - Immersive
   ============================================ */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding-top: 52px;
    overflow: hidden;
    background: linear-gradient(135deg, #f8fafc 0%, #e2e8f0 50%, #f1f5f9 100%);
}

.hero-bg {
    position: absolute;
    inset: 0;
    pointer-events: none;
}

.hero-gradient {
    position: absolute;
    inset: 0;
    background: radial-gradient(ellipse at 30% 50%, rgba(30, 80, 174, 0.08) 0%, transparent 50%),
                radial-gradient(ellipse at 70% 30%, rgba(30, 80, 174, 0.05) 0%, transparent 40%);
}

.hero-pattern {
    position: absolute;
    inset: 0;
    background-image: url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%231e50ae' fill-opacity='0.03'%3E%3Ccircle cx='30' cy='30' r='2'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");
}

.hero-content {
    position: relative;
    z-index: 10;
    max-width: 600px;
    padding: var(--space-2xl) var(--space-xl);
}

.hero-label {
    display: inline-block;
    font-size: 12px;
    font-weight: 600;
    color: var(--color-brand);
    letter-spacing: 2px;
    text-transform: uppercase;
    margin-bottom: var(--space-md);
    padding: var(--space-xs) var(--space-md);
    background: var(--color-brand-light);
    border-radius: 20px;
}

.hero-title {
    font-family: var(--font-display);
    font-size: clamp(40px, 6vw, 64px);
    font-weight: 700;
    line-height: 1.1;
    letter-spacing: -2px;
    margin-bottom: var(--space-lg);
    color: var(--color-text-primary);
}

.hero-subtitle {
    font-size: 18px;
    color: var(--color-text-secondary);
    margin-bottom: var(--space-xl);
    max-width: 480px;
    line-height: 1.6;
}

.hero-actions {
    display: flex;
    gap: var(--space-md);
    flex-wrap: wrap;
}

.hero-visual {
    position: absolute;
    right: 5%;
    top: 50%;
    transform: translateY(-50%);
    width: 45%;
    max-width: 600px;
}

.hero-product-showcase {
    position: relative;
    aspect-ratio: 4/3;
    background: white;
    border-radius: 24px;
    box-shadow: var(--shadow-xl);
    display: flex;
    align-items: center;
    justify-content: center;
}

.product-highlight {
    text-align: center;
}

.highlight-label {
    display: inline-block;
    font-size: 11px;
    font-weight: 600;
    color: white;
    background: var(--color-brand);
    padding: 4px 12px;
    border-radius: 20px;
    margin-bottom: var(--space-md);
}

.placeholder-lg {
    width: 200px;
    height: 200px;
    background: var(--color-bg-secondary);
    border-radius: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 14px;
    font-weight: 600;
    color: var(--color-text-tertiary);
    border: 2px dashed var(--color-border);
}

.hero-scroll {
    position: absolute;
    bottom: var(--space-xl);
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--space-sm);
    z-index: 10;
}

.hero-scroll span {
    font-size: 11px;
    font-weight: 500;
    color: var(--color-text-muted);
    letter-spacing: 1px;
    text-transform: uppercase;
}

.scroll-line {
    width: 1px;
    height: 48px;
    background: linear-gradient(to bottom, var(--color-brand), transparent);
}

/* ============================================
   Banner Section
   ============================================ */
.banner-section {
    padding: var(--space-4xl) 0;
    background: var(--color-bg-primary);
    position: relative;
}

.banner-header {
    text-align: center;
    margin-bottom: var(--space-2xl);
}

.banner-section-title {
    font-family: var(--font-display);
    font-size: 36px;
    font-weight: 600;
    color: var(--color-text-primary);
    margin-top: var(--space-sm);
}

.banner-container {
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 var(--space-xl);
}

.banner-slider {
    background: linear-gradient(135deg, var(--color-brand-light) 0%, var(--color-bg-secondary) 100%);
    border-radius: 24px;
    overflow: hidden;
}

.banner-slide {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-2xl);
    align-items: center;
    padding: var(--space-3xl);
}

.banner-content {
    padding: var(--space-xl);
}

.banner-title {
    font-family: var(--font-display);
    font-size: 36px;
    font-weight: 700;
    color: var(--color-text-primary);
    margin-bottom: var(--space-md);
    line-height: 1.2;
}

.banner-desc {
    font-size: 16px;
    color: var(--color-text-secondary);
    margin-bottom: var(--space-xl);
    line-height: 1.6;
}

.banner-image {
    display: flex;
    align-items: center;
    justify-content: center;
}

.banner-visual {
    width: 100%;
    max-width: 400px;
    aspect-ratio: 4/3;
    background: white;
    border-radius: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 16px;
    font-weight: 600;
    color: var(--color-text-tertiary);
    box-shadow: var(--shadow-lg);
}

.banner-dots {
    display: flex;
    justify-content: center;
    gap: var(--space-sm);
    margin-top: var(--space-xl);
}

.banner-dots .dot {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background: var(--color-border);
    cursor: pointer;
    transition: all var(--transition-fast);
}

.banner-dots .dot.active {
    background: var(--color-brand);
    width: 32px;
    border-radius: 5px;
}

/* ============================================
   Category Showcase - Clean White Card Style
   ============================================ */
.category-showcase {
    padding: var(--space-4xl) 0;
    background: var(--color-bg-secondary);
}

.category-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 24px;
}

.category-card {
    background: #fff;
    border-radius: 16px;
    overflow: hidden;
    display: flex;
    flex-direction: column;
    position: relative;
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    cursor: pointer;
    border: 1px solid rgba(0,0,0,0.06);
    padding: 24px 20px 16px;
    text-decoration: none;
    color: inherit;
}

.category-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 12px 40px rgba(0,0,0,0.08);
}

.category-visual {
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
    aspect-ratio: 4 / 3;
    margin-bottom: 12px;
    background: #f8f9fa;
    border-radius: 12px;
    overflow: hidden;
}

.category-visual img,
.category-visual [style*="background-image"] {
    width: 100% !important;
    height: 100% !important;
    object-fit: cover;
}

.category-card.large .category-visual {
    min-height: 320px;
    height: 360px;
}


.category-info {
    position: relative;
    z-index: 2;
    text-align: center;
    margin-bottom: 12px;
}

.category-info h3 {
    font-family: var(--font-display);
    font-size: 22px;
    font-weight: 700;
    color: #1a1a1a;
    margin-bottom: 6px;
    letter-spacing: -0.01em;
}

.category-info p {
    font-size: 15px;
    color: #666;
    margin-bottom: 0;
    line-height: 1.4;
}

.category-link-arrow {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 4px;
    font-size: 16px;
    font-weight: 600;
    color: #333;
    padding: 10px 0 0;
    transition: all 0.3s ease;
    width: 100%;
    text-align: center;
}

.category-link-arrow:hover {
    color: var(--color-brand);
}

/* ============================================
   Section Common
   ============================================ */
.section-header {
    text-align: center;
    margin-bottom: var(--space-2xl);
}

.section-label {
    display: inline-block;
    font-size: 12px;
    font-weight: 600;
    color: var(--color-brand);
    letter-spacing: 2px;
    text-transform: uppercase;
    margin-bottom: var(--space-sm);
}

.section-title {
    font-family: var(--font-display);
    font-size: 40px;
    font-weight: 600;
    color: var(--color-text-primary);
    letter-spacing: -1px;
}

.section-desc {
    font-size: 18px;
    color: var(--color-text-secondary);
    max-width: 600px;
    margin: var(--space-md) auto 0;
}

/* ============================================
   Products Section - Apple Style
   ============================================ */
.products {
    padding: var(--space-4xl) 0;
    background: var(--color-bg-primary);
}

.products-grid {
    display: flex;
    flex-direction: column;
    gap: 24px;
    margin-bottom: var(--space-2xl);
}

.products-row {
    display: grid;
    gap: 24px;
}

.products-row-large {
    grid-template-columns: repeat(2, 1fr);
}

.products-row-small {
    grid-template-columns: repeat(3, 1fr);
}

.product-card {
    background: transparent;
    border-radius: 20px;
    overflow: hidden;
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    border: none;
    position: relative;
    box-shadow: 0 2px 12px rgba(0, 0, 0, 0.08);
    cursor: pointer;
}

.product-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.16);
}

.product-card-small .product-text h4 {
    font-size: 10px;
}

.product-card-small .product-text p {
    font-size: 8px;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.product-card-small .product-overlay {
    padding: 8px;
}

.product-card-small .product-text {
    padding: 5px 7px 3px;
}

.product-badge {
    position: absolute;
    top: 16px;
    left: 16px;
    font-size: 11px;
    font-weight: 600;
    color: white;
    background: var(--color-brand);
    padding: 5px 12px;
    border-radius: 980px;
    z-index: 10;
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
}

.product-image {
    aspect-ratio: 16 / 10;
    background: linear-gradient(180deg, #f8f9fb 0%, #f1f3f7 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
    position: relative;
}

.product-image-link {
    position: absolute;
    inset: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    text-decoration: none;
    color: inherit;
    z-index: 3;
}

.product-image::after {
    content: '';
    position: absolute;
    inset: 0;
    background: transparent;
    pointer-events: none;
    z-index: 1;
}

.product-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s cubic-bezier(0.4, 0, 0.2, 1);
}

.product-card:hover .product-image img {
    transform: scale(1.06);
}

.placeholder {
    font-size: 14px;
    font-weight: 600;
    color: var(--color-text-muted);
}

.product-overlay {
    position: absolute;
    inset: 0;
    display: flex;
    flex-direction: column;
    justify-content: flex-end;
    align-items: flex-end;
    padding: 24px;
    z-index: 3;
}

.product-overlay-link {
    position: absolute;
    inset: 0;
    z-index: 3;
    text-decoration: none;
    color: inherit;
}

.product-overlay-link .product-overlay {
    position: absolute;
    inset: 0;
    display: flex;
    flex-direction: column;
    justify-content: flex-end;
    align-items: flex-end;
    padding: 24px;
}

.product-text {
    color: white;
    text-shadow: 0 1px 3px rgba(0,0,0,0.5);
    max-width: 85%;
    background: linear-gradient(to top, rgba(0,0,0,0.45) 0%, rgba(0,0,0,0.15) 70%, transparent 100%);
    padding: 12px 16px 8px;
    border-radius: 8px;
}

.product-text h4 {
    font-family: var(--font-display);
    font-size: 22px;
    font-weight: 600;
    margin-bottom: 6px;
    letter-spacing: -0.01em;
    line-height: 1.3;
}

.product-text p {
    font-size: 16px;
    font-weight: 400;
    opacity: 0.95;
}

.product-link {
    display: none;
}

.product-info {
    padding: 20px 20px 22px;
}

.product-info h3,
.product-info h4 {
    font-family: var(--font-display);
    font-size: 18px;
    font-weight: 600;
    color: var(--color-text-primary);
    margin-bottom: 6px;
    letter-spacing: -0.01em;
    line-height: 1.3;
}

.product-info p {
    font-size: 14px;
    color: #6b7280;
    margin-bottom: 10px;
}

.product-features {
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
    margin-bottom: 14px;
}

.product-features span {
    font-size: 11px;
    color: #374151;
    background: #f3f4f6;
    padding: 4px 10px;
    border-radius: 980px;
    font-weight: 500;
}

.btn-outline-sm {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 10px 16px;
    border-radius: 980px;
    border: 1.5px solid #d1d5db;
    color: var(--color-brand);
    background: #fff;
    font-size: 13px;
    font-weight: 500;
    transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
}

.btn-outline-sm:hover {
    background: var(--color-brand);
    border-color: var(--color-brand);
    color: #fff;
    transform: scale(1.02);
}

.product-category {
    font-size: 12px;
    color: var(--color-brand);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-bottom: 4px;
}

.product-desc {
    font-size: 14px;
    color: var(--color-text-secondary);
    margin-bottom: var(--space-md);
    line-height: 1.5;
}

.product-link {
    font-size: 14px;
    font-weight: 600;
    color: var(--color-brand);
    transition: all 0.2s ease;
}

.product-link:hover {
    text-decoration: underline;
}

.products-cta {
    text-align: center;
    margin-top: var(--space-2xl);
}

/* Quick View Overlay */
.product-card .quick-view {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    padding: 16px 20px;
    background: linear-gradient(to top, rgba(0,0,0,0.6), transparent);
    opacity: 0;
    transform: translateY(10px);
    transition: all 0.3s ease;
    z-index: 5;
}

.product-card:hover .quick-view {
    opacity: 1;
    transform: translateY(0);
}

.quick-view-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 100%;
    padding: 12px;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    border-radius: 10px;
    font-size: 13px;
    font-weight: 600;
    color: var(--color-text-primary);
    border: none;
    cursor: pointer;
    transition: all 0.2s ease;
}

.quick-view-btn:hover {
    background: #fff;
    transform: scale(1.02);
}

/* ============================================
   Buttons
   ============================================ */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 14px 28px;
    font-size: 15px;
    font-weight: 600;
    border-radius: 12px;
    transition: all var(--transition-base);
    cursor: pointer;
}

.btn-primary {
    background: var(--color-brand);
    color: white;
    box-shadow: 0 4px 14px rgba(30, 80, 174, 0.3);
}

.btn-primary:hover {
    background: var(--color-brand-hover);
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(30, 80, 174, 0.4);
}

.btn-outline {
    background: transparent;
    color: var(--color-text-primary);
    border: 1.5px solid var(--color-border);
}

.btn-outline:hover {
    border-color: var(--color-brand);
    color: var(--color-brand);
    background: var(--color-brand-light);
}

.btn-outline-full {
    background: transparent;
    color: var(--color-brand);
    border: 2px solid var(--color-brand);
    padding: 16px 32px;
}

.btn-outline-full:hover {
    background: var(--color-brand);
    color: white;
}

/* ============================================
   Technology Section - Apple Visual Storytelling
   ============================================ */
.technology {
    padding: var(--space-4xl) 0;
    background: linear-gradient(180deg, #f8f9fb 0%, #ffffff 50%, #f8f9fb 100%);
}

.tech-header {
    text-align: center;
    margin-bottom: var(--space-3xl);
}

.tech-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
}

.tech-card {
    background: #fff;
    border-radius: 16px;
    padding: 20px;
    display: flex;
    flex-direction: column;
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    border: 1px solid rgba(0, 0, 0, 0.06);
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.04);
    overflow: hidden;
}

.tech-card:hover {
    transform: translateY(-6px);
    box-shadow: 0 16px 40px rgba(0, 0, 0, 0.10);
}

.tech-info {
    text-align: center;
    margin-bottom: 12px;
    flex-shrink: 0;
}

.tech-card h3 {
    font-family: var(--font-display);
    font-size: 17px;
    font-weight: 600;
    margin-bottom: 4px;
    color: var(--color-text-primary);
    letter-spacing: -0.01em;
}

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

.tech-visual {
    flex: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 160px;
    background: #f8f9fa;
    border-radius: 12px;
    overflow: hidden;
    position: relative;
}

.tech-visual img {
    width: 100%;
    height: 100%;
    object-fit: contain;
    object-position: center;
}

.tech-visual .placeholder {
    color: #ccc;
    font-size: 13px;
}

/* Animated Counter */
.stat-counter {
    display: inline-block;
    font-variant-numeric: tabular-nums;
}

/* ============================================
   About Section
   ============================================ */
.about {
    padding: var(--space-4xl) 0;
    background: var(--color-bg-primary);
}

.about-content {
    max-width: 800px;
    margin: 0 auto var(--space-3xl);
    text-align: center;
}

.about-content .section-label {
    margin-bottom: var(--space-sm);
    text-transform: uppercase;
    letter-spacing: 0.1em;
    font-weight: 600;
    color: var(--color-brand);
}

.about-content .section-title {
    text-align: center;
    margin-bottom: var(--space-lg);
    font-size: 2.5rem;
    line-height: 1.2;
}

.about-content p {
    font-size: 16px;
    color: var(--color-text-secondary);
    line-height: 1.7;
    margin-bottom: var(--space-md);
}

.about-image-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-xl);
    margin-bottom: var(--space-3xl);
}

.about-img {
    background: var(--color-white);
    border-radius: 12px;
    overflow: hidden;
    box-shadow: var(--shadow-sm);
    transition: transform var(--transition-base), box-shadow var(--transition-base);
    text-align: center;
    padding: 0;
}

.about-img:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-md);
}

.about-img-inner {
    width: 100%;
    height: 250px;
    background-size: cover;
    background-position: center;
    border-radius: 12px;
    margin-bottom: var(--space-lg);
}

.about-img h3 {
    margin: 0 0 var(--space-xs);
    font-size: 1rem;
    font-weight: 600;
    color: var(--color-text);
}

.about-img p {
    margin: 0;
    display: none;
}

.about-cta {
    text-align: center;
    margin-top: var(--space-2xl);
}

/* ============================================
   News / Articles Section
   ============================================ */
.news-section {
    padding: var(--space-4xl) 0;
    background: var(--color-bg-primary);
}
.news-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-lg);
    margin-top: var(--space-xl);
}
.news-card {
    background: #fff;
    border-radius: 16px;
    overflow: hidden;
    box-shadow: 0 2px 12px rgba(0,0,0,0.06);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    display: flex;
    flex-direction: column;
}
.news-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 8px 30px rgba(0,0,0,0.12);
}
.news-card-image {
    width: 100%;
    height: 300px;
    object-fit: cover;
    display: block;
}
.news-card-image-placeholder {
    width: 100%;
    height: 300px;
    background: linear-gradient(135deg, #1e50ae 0%, #2a5fc4 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    color: #fff;
    font-size: 14px;
}
.news-card-body {
    padding: 20px 22px 18px;
    flex: 1;
    display: flex;
    flex-direction: column;
}
.news-card-category {
    display: inline-block;
    font-size: 11px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    color: #1e50ae;
    background: rgba(30,80,174,0.08);
    padding: 3px 10px;
    border-radius: 20px;
    margin-bottom: 10px;
    align-self: flex-start;
}
.news-card-title {
    font-size: 16px;
    font-weight: 700;
    line-height: 1.4;
    color: var(--color-text-primary);
    margin-bottom: 10px;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}
.news-card-excerpt {
    font-size: 13px;
    line-height: 1.6;
    color: var(--color-text-secondary);
    margin-bottom: 16px;
    flex: 1;
    display: -webkit-box;
    -webkit-line-clamp: 3;
    -webkit-box-orient: vertical;
    overflow: hidden;
}
.news-card-date {
    font-size: 12px;
    color: #868e96;
    margin-bottom: 12px;
}
.news-card-footer {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding-top: 14px;
    border-top: 1px solid #f0f0f0;
}
.news-read-more {
    font-size: 13px;
    font-weight: 600;
    color: #1e50ae;
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    gap: 4px;
    transition: gap 0.2s ease, color 0.2s ease;
}
.news-read-more:hover {
    gap: 8px;
    color: #163a8a;
}
.news-read-more::after {
    content: '>';
    font-size: 15px;
    transition: transform 0.2s ease;
}
.news-read-more:hover::after {
    transform: translateX(3px);
}
.news-loading {
    grid-column: 1 / -1;
    text-align: center;
    padding: 60px 0;
    color: #868e96;
    font-size: 15px;
}
.news-empty {
    grid-column: 1 / -1;
    text-align: center;
    padding: 40px 0;
    color: #868e96;
}

@media (max-width: 992px) {
    .news-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 768px) {
    .news-section { padding: var(--space-xl) 0; }
    .news-grid { grid-template-columns: 1fr; gap: var(--space-md); }
    .news-card-image { height: 240px; }
    .news-card-body { padding: 16px 18px 14px; }
    .news-card-title { font-size: 15px; }
}

/* ============================================
   Contact Section
   ============================================ */
.contact {
    padding: var(--space-4xl) 0;
    background: var(--color-bg-secondary);
}

.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-3xl);
}

.contact-info .section-label {
    margin-bottom: var(--space-sm);
}

.contact-info .section-title {
    text-align: left;
    margin-bottom: var(--space-md);
}

.contact-info > p {
    font-size: 16px;
    color: var(--color-text-secondary);
    margin-bottom: var(--space-xl);
}

.contact-methods {
    display: flex;
    flex-direction: column;
    gap: var(--space-lg);
    margin-bottom: var(--space-xl);
}

.contact-item {
    display: flex;
    align-items: flex-start;
    gap: var(--space-md);
}

.contact-item svg {
    color: var(--color-brand);
    flex-shrink: 0;
    margin-top: 2px;
}

.contact-item .label {
    display: block;
    font-size: 13px;
    font-weight: 600;
    color: var(--color-text-muted);
    margin-bottom: 2px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.contact-item a {
    font-size: 16px;
    color: var(--color-text-primary);
    font-weight: 500;
}

.contact-item a:hover {
    color: var(--color-brand);
}

.contact-departments {
    background: white;
    padding: var(--space-xl);
    border-radius: 20px;
    border: 1px solid var(--color-border);
}

.contact-departments h3 {
    font-family: var(--font-display);
    font-size: 20px;
    font-weight: 600;
    margin-bottom: var(--space-lg);
    color: var(--color-text-primary);
}

.dept-list {
    display: flex;
    flex-direction: column;
    gap: var(--space-lg);
}

.dept-item {
    display: flex;
    flex-direction: column;
    gap: 4px;
    padding-bottom: var(--space-lg);
    border-bottom: 1px solid var(--color-border-light);
}

.dept-item:last-child {
    border-bottom: none;
    padding-bottom: 0;
}

.dept-name {
    font-size: 14px;
    font-weight: 600;
    color: var(--color-brand);
}

.dept-person {
    font-size: 15px;
    color: var(--color-text-primary);
}

.dept-item a {
    font-size: 14px;
    color: var(--color-text-secondary);
}

.dept-item a:hover {
    color: var(--color-brand);
}

/* ============================================
   Footer - Apple Minimal Style
   ============================================ */
.footer {
    padding: 60px 0 32px;
    background: #f5f5f7;
    color: #1d1d1f;
}

/* Newsletter Section */
.footer-newsletter {
    background: #000;
    border-radius: 24px;
    padding: 56px 48px;
    margin-bottom: 48px;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.footer-newsletter::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle at center, rgba(30, 80, 174, 0.15) 0%, transparent 50%);
    pointer-events: none;
}

.footer-newsletter h3 {
    font-family: var(--font-display);
    font-size: 36px;
    font-weight: 700;
    color: #fff;
    margin-bottom: 12px;
    letter-spacing: -0.02em;
}

.footer-newsletter p {
    font-size: 17px;
    color: rgba(255, 255, 255, 0.7);
    margin-bottom: 28px;
}

.newsletter-form {
    display: flex;
    gap: 12px;
    max-width: 500px;
    margin: 0 auto;
}

.newsletter-input {
    flex: 1;
    height: 48px;
    padding: 0 20px;
    border-radius: 980px;
    border: 1px solid rgba(255, 255, 255, 0.2);
    background: rgba(255, 255, 255, 0.08);
    color: #fff;
    font-size: 15px;
    backdrop-filter: blur(10px);
    transition: all 0.3s ease;
}

.newsletter-input::placeholder {
    color: rgba(255, 255, 255, 0.5);
}

.newsletter-input:focus {
    outline: none;
    border-color: rgba(255, 255, 255, 0.5);
    background: rgba(255, 255, 255, 0.12);
}

.newsletter-btn {
    height: 48px;
    padding: 0 28px;
    border-radius: 980px;
    background: var(--color-brand);
    color: #fff;
    font-size: 15px;
    font-weight: 600;
    border: none;
    cursor: pointer;
    transition: all 0.3s ease;
}

.newsletter-btn:hover {
    background: var(--color-brand-hover);
    transform: scale(1.02);
}

.footer-main {
    display: grid;
    grid-template-columns: 1.5fr 2fr;
    gap: 48px;
    margin-bottom: 40px;
}

.footer-logo {
    font-family: var(--font-display);
    font-size: 24px;
    font-weight: 700;
    color: #1d1d1f;
    display: block;
    margin-bottom: 12px;
}

.footer-brand p {
    font-size: 14px;
    color: #6e6e73;
    margin-bottom: 20px;
    line-height: 1.5;
}

.footer-social {
    display: flex;
    gap: 12px;
}

.footer-social a {
    width: 40px;
    height: 40px;
    background: rgba(0, 0, 0, 0.05);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #1d1d1f;
    transition: all 0.3s ease;
}

.footer-social a:hover {
    background: var(--color-brand);
    color: #fff;
    transform: scale(1.1);
}

.footer-links {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 32px;
}

.footer-col h4 {
    font-size: 12px;
    font-weight: 600;
    color: #1d1d1f;
    margin-bottom: 16px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.footer-col a {
    display: block;
    font-size: 14px;
    color: #6e6e73;
    padding: 5px 0;
    transition: color 0.2s ease;
}

.footer-col a:hover {
    color: var(--color-brand);
}

.footer-bottom {
    padding-top: 24px;
    border-top: 1px solid #d2d2d7;
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 16px;
}

.footer-bottom p {
    font-size: 13px;
    color: #86868b;
}

.footer-legal {
    display: flex;
    gap: 24px;
}

.footer-legal a {
    font-size: 13px;
    color: #86868b;
}

.footer-legal a:hover {
    color: #1d1d1f;
}

.footer-legal span {
    font-size: 13px;
    color: #86868b;
}

/* Mobile Footer Newsletter */
@media (max-width: 768px) {
    .footer-newsletter {
        padding: 40px 24px;
        border-radius: 20px;
        margin: 0 16px 40px;
    }
    
    .footer-newsletter h3 {
        font-size: 26px;
    }
    
    .footer-newsletter p {
        font-size: 15px;
    }
    
    .newsletter-form {
        flex-direction: column;
    }
    
    .newsletter-btn {
        width: 100%;
    }
}

/* ============================================
   Responsive - Apple Mobile First
   ============================================ */
@media (max-width: 1024px) {
    .hero-visual {
        display: none;
    }

    .hero-content {
        max-width: 100%;
        text-align: center;
        padding: var(--space-2xl);
    }

    .hero-actions {
        justify-content: center;
    }

    .category-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .products-row-large {
        grid-template-columns: repeat(2, 1fr);
    }

    .products-row-small {
        grid-template-columns: repeat(3, 1fr);
    }

    .tech-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .about-grid,
    .contact-grid {
        grid-template-columns: 1fr;
    }

    .about-visual {
        order: -1;
    }

    .banner-slide {
        grid-template-columns: 1fr;
        text-align: center;
    }

    .footer-main {
        grid-template-columns: 1fr;
    }

    .dropdown-menu {
        min-width: 500px;
    }

    .dropdown-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

@media (max-width: 768px) {
    /* Improve touch targets */
    .btn {
        min-height: 48px;
        padding: 14px 24px;
    }
    
    /* Better scrolling */
    html {
        scroll-behavior: auto;
        -webkit-overflow-scrolling: touch;
    }
    
    /* Hide elements that don't work well on mobile */
    .hero-banner-scroll {
        display: none;
    }
    
    /* Improve typography on mobile */
    .section-title {
        font-size: 32px;
        letter-spacing: -0.01em;
    }
    
    /* Better touch feedback */
    a, button {
        -webkit-tap-highlight-color: rgba(30, 80, 174, 0.1);
    }
    
    /* Improve form inputs on mobile */
    input, select, textarea {
        font-size: 16px; /* Prevents zoom on iOS */
    }
}

@media (max-width: 640px) {
    .nav-container {
        justify-content: flex-start;
        gap: 10px;
    }

    .nav-main,
    .nav-right {
        display: none;
    }

    /* Logo在左，搜索与菜单成组贴右，避免搜索单独挤在正中间 */
    .nav-mobile-actions {
        margin-left: auto;
        display: flex;
        align-items: center;
        gap: 8px;
        flex-shrink: 0;
    }

    .mobile-menu-toggle {
        display: inline-flex;
    }

    .mobile-search-toggle {
        display: inline-flex;
        margin-right: 0;
    }

    .mobile-search-shell {
        padding-top: calc(52px + env(safe-area-inset-top, 12px));
        padding-left: max(16px, env(safe-area-inset-left, 0px));
        padding-right: max(16px, env(safe-area-inset-right, 0px));
    }

    .mobile-nav-panel {
        display: none;
    }

    .mobile-nav-panel.is-open {
        display: block;
    }

    .hero-title {
        font-size: 36px;
    }

    .hero-actions {
        flex-direction: column;
    }

    .category-grid {
        grid-template-columns: 1fr;
    }

    .products-row-large,
    .products-row-small {
        grid-template-columns: 1fr;
    }
    .tech-grid,
    .footer-links {
        grid-template-columns: repeat(2, 1fr);
        gap: 12px;
    }

    .tech-card {
        padding: 12px;
    }

    .tech-card h3 {
        font-size: 14px;
    }

    .tech-card p {
        font-size: 11px;
        display: -webkit-box;
        -webkit-line-clamp: 2;
        -webkit-box-orient: vertical;
        overflow: hidden;
    }

    .tech-visual {
        min-height: 100px;
    }

    .about-stats {
        flex-direction: column;
        gap: var(--space-lg);
    }

    .about-image-grid {
        grid-template-columns: 1fr;
    }

    .about-img-inner {
        height: auto;
        aspect-ratio: 16 / 10;
        background-size: contain;
        background-repeat: no-repeat;
    }

    .about-img.large {
        grid-row: span 1;
    }

    .section-title {
        font-size: 28px;
    }

    .banner-title {
        font-size: 24px;
    }

    .footer-bottom {
        flex-direction: column;
        text-align: center;
    }

    .footer-legal {
        flex-wrap: wrap;
        justify-content: center;
    }

    .dropdown-menu {
        min-width: 300px;
    }

    .dropdown-grid {
        grid-template-columns: 1fr 1fr;
    }
    
    /* Mobile-specific card improvements */
    .product-card {
        border-radius: 16px;
    }
    
    .product-info {
        padding: 16px;
    }
    
    /* Mobile footer */
    .footer-newsletter {
        margin: 0 16px 32px;
        padding: 32px 20px;
    }
    
    /* Better modal on mobile */
    .gallery-fullscreen img {
        max-width: 95vw;
        max-height: 80vh;
    }
    
    /* Mobile category cards */
    .category-card {
        border-radius: 18px;
    }
    
    .category-info {
        padding: 20px;
    }
    
    /* Mobile tech cards */
    .tech-card {
        padding: 24px 16px;
        border-radius: 18px;
    }
}

/* ============================================
   Product Category Pages - Apple Style
   ============================================ */
.breadcrumb {
    padding: var(--space-lg) 0;
    padding-top: calc(52px + var(--space-lg));
    font-size: 14px;
    color: var(--color-text-secondary);
}

.breadcrumb a {
    color: var(--color-brand);
}

.breadcrumb a:hover {
    text-decoration: underline;
}

.breadcrumb span {
    color: var(--color-text-primary);
}

.category-header {
    padding: 64px 0;
    text-align: center;
    background: linear-gradient(180deg, #f8f9fb 0%, #ffffff 100%);
    border-bottom: 1px solid rgba(0, 0, 0, 0.04);
}

.page-title {
    font-family: var(--font-display);
    font-size: clamp(36px, 5vw, 56px);
    font-weight: 700;
    color: var(--color-text-primary);
    margin-bottom: 12px;
    letter-spacing: -0.02em;
}

.page-subtitle {
    font-size: 18px;
    color: var(--color-text-secondary);
    max-width: 500px;
    margin: 0 auto;
}

/* Category Page Layout */
.category-page {
    padding: 48px 0 80px;
}

.category-layout {
    display: grid;
    grid-template-columns: 260px 1fr;
    gap: 40px;
    align-items: start;
}

/* Filter Sidebar */
.category-filters {
    position: sticky;
    top: 72px;
}

.filter-section {
    background: #fff;
    border-radius: 20px;
    padding: 24px;
    margin-bottom: 16px;
    border: 1px solid rgba(0, 0, 0, 0.04);
    box-shadow: 0 2px 12px rgba(0, 0, 0, 0.03);
}

.filter-title {
    font-size: 13px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    color: #1f2937;
    margin-bottom: 16px;
}

.filter-options {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.filter-option {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 14px;
    color: #4b5563;
    cursor: pointer;
    transition: color 0.2s ease;
}

.filter-option:hover {
    color: var(--color-brand);
}

.filter-option input[type="checkbox"] {
    width: 18px;
    height: 18px;
    border-radius: 4px;
    border: 1.5px solid #d1d5db;
    accent-color: var(--color-brand);
}

/* View Toggle */
.category-toolbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 24px;
    padding-bottom: 16px;
    border-bottom: 1px solid rgba(0, 0, 0, 0.06);
}

.toolbar-left {
    font-size: 14px;
    color: #6b7280;
}

.view-toggle {
    display: flex;
    gap: 8px;
}

.view-btn {
    width: 40px;
    height: 40px;
    border-radius: 10px;
    border: 1px solid rgba(0, 0, 0, 0.08);
    background: #fff;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: all 0.2s ease;
    color: #6b7280;
}

.view-btn:hover {
    border-color: var(--color-brand);
    color: var(--color-brand);
}

.view-btn.active {
    background: var(--color-brand);
    border-color: var(--color-brand);
    color: #fff;
}

.category-products {
    padding: 0;
}

/* List View */
.products-grid.list-view {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.products-grid.list-view .product-card {
    display: grid;
    grid-template-columns: 200px 1fr;
    border-radius: 20px;
}

.products-grid.list-view .product-image {
    aspect-ratio: 1;
    border-radius: 20px 0 0 20px;
}

.products-grid.list-view .product-info {
    padding: 24px;
    display: flex;
    flex-direction: column;
    justify-content: center;
}

/* Features Highlight */
.features-highlight {
    padding: 80px 0;
    background: linear-gradient(180deg, #ffffff 0%, #f8f9fb 100%);
}

.features-highlight h2 {
    font-family: var(--font-display);
    font-size: 36px;
    font-weight: 700;
    text-align: center;
    margin-bottom: 48px;
    letter-spacing: -0.02em;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
}

.feature-item {
    background: #fff;
    padding: 32px 24px;
    border-radius: 20px;
    text-align: center;
    border: 1px solid rgba(0, 0, 0, 0.04);
    box-shadow: 0 2px 12px rgba(0, 0, 0, 0.03);
    transition: all 0.3s ease;
}

.feature-item:hover {
    transform: translateY(-4px);
    box-shadow: 0 12px 32px rgba(0, 0, 0, 0.08);
}

.feature-icon {
    font-size: 40px;
    display: block;
    margin-bottom: 16px;
}

/* Minimal icon mark (replaces emoji) — calm, Apple-adjacent */
.feature-icon.feature-icon-mark {
    font-size: 0;
    width: 48px;
    height: 48px;
    margin-left: auto;
    margin-right: auto;
    border-radius: 50%;
    background: linear-gradient(180deg, #f3f4f6 0%, #e8ebf0 100%);
    border: 1px solid rgba(0, 0, 0, 0.06);
    box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.75);
    position: relative;
}

.feature-icon.feature-icon-mark::after {
    content: '';
    position: absolute;
    left: 50%;
    top: 50%;
    width: 6px;
    height: 6px;
    margin: -3px 0 0 -3px;
    border-radius: 50%;
    background: var(--color-brand);
}

.feature-item h4 {
    font-size: 17px;
    font-weight: 600;
    color: #1f2937;
    margin-bottom: 8px;
}

.feature-item p {
    font-size: 14px;
    color: #6b7280;
    line-height: 1.5;
}

/* Related Categories */
.related-categories {
    padding: 80px 0;
    background: #fff;
}

.related-categories h2 {
    font-family: var(--font-display);
    font-size: 28px;
    font-weight: 700;
    text-align: center;
    margin-bottom: 32px;
}

.related-grid {
    display: flex;
    justify-content: center;
    gap: 16px;
    flex-wrap: wrap;
}

.related-card {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 16px 24px;
    background: #f8f9fb;
    border-radius: 980px;
    font-size: 14px;
    font-weight: 500;
    color: #1f2937;
    transition: all 0.3s ease;
}

.related-card:hover {
    background: var(--color-brand);
    color: #fff;
}

.related-icon {
    font-size: 18px;
}

.related-card:hover .related-icon {
    transform: scale(1.1);
}

/* CTA Section */
.cta-section {
    padding: 80px 0;
    background: linear-gradient(135deg, #1e50ae 0%, #0f2a5c 100%);
    text-align: center;
}

.cta-section h2 {
    font-family: var(--font-display);
    font-size: 36px;
    font-weight: 700;
    color: #fff;
    margin-bottom: 12px;
}

.cta-section p {
    font-size: 18px;
    color: rgba(255, 255, 255, 0.8);
    margin-bottom: 24px;
}

@media (max-width: 1024px) {
    .category-layout {
        grid-template-columns: 1fr;
    }
    
    .category-filters {
        position: relative;
        top: 0;
        display: flex;
        gap: 12px;
        overflow-x: auto;
        padding-bottom: 16px;
    }
    
    .filter-section {
        min-width: 200px;
        margin-bottom: 0;
    }
    
    .features-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 640px) {
    .category-header {
        padding: 48px 0;
    }
    
    .page-title {
        font-size: 32px;
    }
    
    .features-grid {
        grid-template-columns: 1fr;
    }
    
    .products-grid.list-view .product-card {
        grid-template-columns: 1fr;
    }
    
    .products-grid.list-view .product-image {
        aspect-ratio: 4/3;
        border-radius: 20px 20px 0 0;
    }
}

/* ============================================
   Product Detail Page - Apple Style
   ============================================ */
.product-detail {
    padding: calc(52px + var(--space-2xl)) 0 var(--space-3xl);
    background: linear-gradient(180deg, #ffffff 0%, #f8f9fb 100%);
    min-height: 100vh;
}

.detail-grid {
    display: grid;
    grid-template-columns: minmax(0, 1.1fr) minmax(0, 0.9fr);
    gap: clamp(32px, 5vw, 72px);
    align-items: start;
}

/* Gallery */
.detail-gallery {
    position: sticky;
    top: 80px;
}

.detail-image-main {
    aspect-ratio: 1;
    background: linear-gradient(160deg, #f8f9fb 0%, #f1f3f7 100%);
    border-radius: 24px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 14px;
    overflow: hidden;
    cursor: zoom-in;
    position: relative;
}

.detail-image-main::before {
    content: '';
    position: absolute;
    inset: 0;
    background: transparent;
    z-index: 1;
    pointer-events: none;
}

.detail-image-main img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

.detail-image-main:hover img {
    transform: scale(1.03);
}

/* Fullscreen Gallery Modal */
.gallery-fullscreen {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.95);
    z-index: 10000;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    visibility: hidden;
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

.gallery-fullscreen.active {
    opacity: 1;
    visibility: visible;
}

.gallery-fullscreen img {
    max-width: 90vw;
    max-height: 90vh;
    object-fit: contain;
    border-radius: 8px;
}

.gallery-close {
    position: absolute;
    top: 20px;
    right: 20px;
    width: 44px;
    height: 44px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.1);
    border: none;
    color: #fff;
    font-size: 24px;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.2s ease;
}

.gallery-close:hover {
    background: rgba(255, 255, 255, 0.2);
}

.gallery-nav {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    width: 50px;
    height: 50px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.1);
    border: none;
    color: #fff;
    font-size: 20px;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.2s ease;
}

.gallery-nav:hover {
    background: rgba(255, 255, 255, 0.2);
}

.gallery-prev { left: 20px; }
.gallery-next { right: 20px; }

.detail-thumbnails {
    display: flex;
    gap: 12px;
    flex-wrap: nowrap;
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
    scrollbar-width: thin;
    scroll-snap-type: x mandatory;
    padding-bottom: 4px;
}

.detail-thumbnails::-webkit-scrollbar {
    height: 4px;
}

.detail-thumbnails::-webkit-scrollbar-track {
    background: #f1f1f1;
    border-radius: 4px;
}

.detail-thumbnails::-webkit-scrollbar-thumb {
    background: #ccc;
    border-radius: 4px;
}

.detail-thumbnails .thumb {
    min-width: 72px;
    width: 72px;
    height: 72px;
    border-radius: 12px;
    border: 2px solid transparent;
    background: #fff;
    padding: 0;
    overflow: hidden;
    flex-shrink: 0;
    scroll-snap-align: center;
    transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
    cursor: pointer;
}

.detail-thumbnails .thumb.active,
.detail-thumbnails .thumb:hover {
    border-color: var(--color-brand);
    transform: scale(1.05);
}

.detail-thumbnails .thumb img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
}

/* Info Panel */
.detail-info {
    padding-top: 8px;
}

.detail-category {
    display: inline-block;
    font-size: 12px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1px;
    color: var(--color-brand);
    margin-bottom: 8px;
}

.detail-title {
    font-family: var(--font-display);
    font-size: clamp(32px, 4vw, 48px);
    font-weight: 700;
    color: var(--color-text-primary);
    margin-bottom: 12px;
    letter-spacing: -0.02em;
    line-height: 1.1;
}

.detail-subtitle {
    font-size: 18px;
    color: #4b5563;
    margin-bottom: 28px;
    line-height: 1.6;
}

.detail-price {
    margin-bottom: 28px;
    padding: 20px;
    background: linear-gradient(135deg, #f8f9fb 0%, #f1f3f7 100%);
    border-radius: 16px;
}

.price-label {
    display: block;
    font-size: 12px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1px;
    color: #6b7280;
    margin-bottom: 4px;
}

.price-value {
    font-size: 32px;
    font-weight: 700;
    color: #0f172a;
    font-family: var(--font-display);
}

.detail-specs,
.detail-features {
    background: #fff;
    border: 1px solid rgba(0, 0, 0, 0.04);
    border-radius: 20px;
    padding: 20px;
    margin-bottom: 16px;
    box-shadow: 0 2px 12px rgba(0, 0, 0, 0.03);
}

.detail-specs h3,
.detail-features h3 {
    font-size: 14px;
    font-weight: 600;
    color: #1f2937;
    margin-bottom: 14px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.spec-grid {
    display: grid;
    gap: 0;
}

.spec-item {
    display: grid;
    grid-template-columns: 130px 1fr;
    gap: 12px;
    padding: 12px 0;
    border-bottom: 1px solid #f3f4f6;
}

.spec-item:last-child {
    border-bottom: none;
    padding-bottom: 0;
}

.spec-label {
    color: #6b7280;
    font-size: 14px;
}

.spec-value {
    color: #111827;
    font-size: 14px;
    font-weight: 500;
}

.detail-features ul {
    list-style: none;
    display: grid;
    gap: 12px;
}

.detail-features li {
    position: relative;
    padding-left: 20px;
    font-size: 14px;
    color: #374151;
    line-height: 1.5;
}

.detail-features li::before {
    content: '';
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: var(--color-brand);
    position: absolute;
    left: 0;
    top: 8px;
}

.detail-actions {
    margin-top: 24px;
    display: flex;
    gap: 12px;
    flex-wrap: wrap;
}

.detail-actions .btn {
    flex: 1;
    min-width: 160px;
    justify-content: center;
}

@media (max-width: 1024px) {
    .detail-grid {
        grid-template-columns: 1fr;
        gap: 32px;
    }
    
    .detail-gallery {
        position: relative;
        top: 0;
    }
}

@media (max-width: 640px) {
    .product-detail {
        padding: calc(52px + 14px) 0 24px;
    }

    .detail-title {
        font-size: 28px;
    }

    .detail-subtitle {
        font-size: 16px;
        margin-bottom: 20px;
    }

    .detail-image-main {
        border-radius: 20px;
    }

    .detail-thumbnails .thumb {
        min-width: 64px;
        width: 64px;
        height: 64px;
        border-radius: 12px;
    }

    .spec-item {
        grid-template-columns: 100px 1fr;
        gap: 10px;
    }

    .detail-actions {
        flex-direction: column;
    }

    .detail-actions .btn {
        width: 100%;
    }
    
    .gallery-nav {
        width: 40px;
        height: 40px;
    }
}

/* ============================================
   Animations - Apple Smooth
   ============================================ */
@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(40px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes scaleIn {
    from {
        opacity: 0;
        transform: scale(0.95);
    }
    to {
        opacity: 1;
        transform: scale(1);
    }
}

@keyframes slideInLeft {
    from {
        opacity: 0;
        transform: translateX(-30px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

@keyframes slideInRight {
    from {
        opacity: 0;
        transform: translateX(30px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

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

.animate-in {
    animation: fadeIn 0.7s cubic-bezier(0.4, 0, 0.2, 1) forwards;
}

.animate-in-up {
    animation: fadeInUp 0.8s cubic-bezier(0.4, 0, 0.2, 1) forwards;
}

.animate-scale {
    animation: scaleIn 0.6s cubic-bezier(0.4, 0, 0.2, 1) forwards;
}

/* Scroll-triggered reveal */
.reveal {
    opacity: 0;
    transform: translateY(40px);
    transition: opacity 0.8s cubic-bezier(0.4, 0, 0.2, 1), transform 0.8s cubic-bezier(0.4, 0, 0.2, 1);
}

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

/* Staggered animation delays */
.stagger-1 { animation-delay: 0.1s; }
.stagger-2 { animation-delay: 0.2s; }
.stagger-3 { animation-delay: 0.3s; }
.stagger-4 { animation-delay: 0.4s; }
.stagger-5 { animation-delay: 0.5s; }

/* Loading Skeleton */
.skeleton {
    background: linear-gradient(90deg, #f0f0f0 25%, #e0e0e0 50%, #f0f0f0 75%);
    background-size: 200% 100%;
    animation: skeleton-loading 1.5s infinite;
    border-radius: 8px;
}

@keyframes skeleton-loading {
    0% {
        background-position: 200% 0;
    }
    100% {
        background-position: -200% 0;
    }
}

.skeleton-text {
    height: 16px;
    margin-bottom: 8px;
}

.skeleton-title {
    height: 24px;
    width: 60%;
    margin-bottom: 12px;
}

.skeleton-image {
    aspect-ratio: 4/3;
    border-radius: 12px;
}

/* Page Transition */
.page-transition {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: #fff;
    z-index: 9999;
    transform: translateY(-100%);
    transition: transform 0.5s cubic-bezier(0.4, 0, 0.2, 1);
}

.page-transition.active {
    transform: translateY(0);
}

/* ============================================
   Utility Classes
   ============================================ */
.text-center {
    text-align: center;
}

.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}

/* ============================================
   Hero Banner - Apple Immersive Style
   ============================================ */
.hero-banner {
    position: relative;
    width: 100%;
    height: 100vh;
    min-height: 700px;
    max-height: 1080px;
    overflow: hidden;
    background: #000;
}

.hero-banner-slider {
    position: relative;
    width: 100%;
    height: 100%;
    opacity: 0;
    transition: opacity 0.4s ease;
}

.hero-banner-slider.kc-ready {
    opacity: 1;
}

.hero-banner-slide {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
    opacity: 0;
    visibility: hidden;
    transition: opacity 1s cubic-bezier(0.4, 0, 0.2, 1), visibility 1s cubic-bezier(0.4, 0, 0.2, 1);
    display: flex;
    align-items: center;
    justify-content: center;
}

.hero-banner-slide.active {
    opacity: 1;
    visibility: visible;
}

/* 整图点击（在渐变之下、文案之下；渐变 pointer-events:none 让点击穿透到此处） */
.hero-banner-slide-hit {
    position: absolute;
    inset: 0;
    z-index: 0;
    background: transparent;
}

/* Apple-style gradient overlay */
.hero-banner-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(
        180deg,
        rgba(0, 0, 0, 0.3) 0%,
        rgba(0, 0, 0, 0.1) 40%,
        rgba(0, 0, 0, 0.1) 70%,
        rgba(0, 0, 0, 0.4) 100%
    );
    z-index: 1;
    pointer-events: none;
}

/* Content styling - Apple typography focus */
.hero-banner-content {
    position: relative;
    z-index: 2;
    text-align: center;
    width: 380px;
    max-width: 380px;
    color: var(--color-text-light);
    transform: translateY(20px);
    opacity: 0;
    transition: transform 0.8s cubic-bezier(0.4, 0, 0.2, 1), opacity 0.8s cubic-bezier(0.4, 0, 0.2, 1);
    pointer-events: auto;
    margin-left: auto;
    margin-right: 12%;
    align-self: flex-end;
    margin-bottom: 50px;
}

.hero-banner-slide.active .hero-banner-content {
    transform: translateY(0);
    opacity: 1;
}

.hero-banner-title {
    font-family: Arial, Helvetica, sans-serif;
    font-size: clamp(1.925rem, 4.2vw, 2.45rem);
    font-weight: 700;
    line-height: 1.1;
    letter-spacing: -0.02em;
    margin-bottom: var(--space-md);
    color: white;
}

.hero-banner-desc {
    font-family: Arial, Helvetica, sans-serif;
    font-size: clamp(0.7rem, 1.05vw, 0.7875rem);
    line-height: 1.5;
    margin-bottom: var(--space-lg);
    color: rgba(255, 255, 255, 0.9);
    max-width: 100%;
    font-weight: 400;
}

.hero-banner-actions {
    display: flex;
    gap: var(--space-md);
    justify-content: center;
    flex-wrap: wrap;
}

.hero-banner-actions .btn-lg {
    padding: 11px 22px;
    font-size: 10.5px;
    font-weight: 600;
    border-radius: 999px;
    min-width: 28px;
}

.btn-outline-light {
    background: rgba(0, 0, 0, 0.75);
    color: white;
    border: 1.5px solid rgba(255, 255, 255, 0.3);
}

.btn-outline-light:hover {
    background: rgba(0, 0, 0, 0.9);
    border-color: rgba(255, 255, 255, 0.5);
    color: white;
}

/* Slider Controls - Apple minimal style */
.hero-banner-controls {
    position: absolute;
    bottom: 50px;
    left: 50%;
    transform: translateX(-50%);
    z-index: 10;
    display: flex;
    align-items: center;
    gap: var(--space-lg);
    /* 控件自身可点，但不阻挡下层 Banner CTA 按钮点击 */
    pointer-events: none;
}

.hero-banner-prev,
.hero-banner-next {
    position: relative;
    width: 48px;
    height: 48px;
    min-width: 48px;
    min-height: 48px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border: 1px solid rgba(255, 255, 255, 0.15);
    color: white;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    opacity: 0.8;
    pointer-events: auto;
}

/* 扩大可点区域（视觉仍为 48px 圆内图标） */
.hero-banner-prev::after,
.hero-banner-next::after {
    content: '';
    position: absolute;
    inset: -18px;
    border-radius: 50%;
}

.hero-banner-prev:hover,
.hero-banner-next:hover {
    background: rgba(255, 255, 255, 0.2);
    opacity: 1;
    transform: scale(1.05);
}

.hero-banner-dots {
    display: flex;
    gap: 8px;
    pointer-events: auto;
}

.hero-banner-dots .dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.35);
    cursor: pointer;
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

.hero-banner-dots .dot.active {
    background: white;
    transform: scale(1.15);
}

.hero-banner-dots .dot:hover {
    background: rgba(255, 255, 255, 0.6);
}

/* Scroll Indicator - Apple style */
.hero-banner-scroll {
    position: absolute;
    bottom: 28px;
    left: 50%;
    transform: translateX(-50%);
    z-index: 10;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
    color: rgba(255, 255, 255, 0.5);
    font-size: 11px;
    text-transform: uppercase;
    letter-spacing: 2px;
    font-weight: 400;
}

.hero-banner-scroll .scroll-line {
    width: 1px;
    height: 50px;
    background: linear-gradient(to bottom, rgba(255, 255, 255, 0.5), transparent);
    animation: scrollBounce 2.5s ease-in-out infinite;
}

@keyframes scrollBounce {
    0%, 100% {
        transform: translateY(0);
        opacity: 0.5;
    }
    50% {
        transform: translateY(12px);
        opacity: 0.2;
    }
}

/* Middle Banner */
.middle-banner {
    position: relative;
    width: 100vw;
    left: 50%;
    right: 50%;
    margin-left: -50vw;
    margin-right: -50vw;
    height: 500px;
    overflow: hidden;
}

.middle-banner-slider {
    position: relative;
    width: 100%;
    height: 100%;
    opacity: 0;
    transition: opacity 0.4s ease;
}

.middle-banner-slider.kc-ready {
    opacity: 1;
}

.middle-banner-slide {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
    opacity: 0;
    visibility: hidden;
    transition: opacity 1s cubic-bezier(0.4, 0, 0.2, 1), visibility 1s cubic-bezier(0.4, 0, 0.2, 1);
    display: flex;
    align-items: center;
    justify-content: center;
}

.middle-banner-slide.active {
    opacity: 1;
    visibility: visible;
}

/* 整图点击 */
.middle-banner-slide-hit {
    position: absolute;
    inset: 0;
    z-index: 0;
    background: transparent;
}

.middle-banner-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: transparent;
    z-index: 1;
    pointer-events: none;
}

/* Dots */
.middle-banner-dots {
    position: absolute;
    bottom: 30px;
    left: 50%;
    transform: translateX(-50%);
    z-index: 10;
    display: flex;
    gap: 8px;
    pointer-events: auto;
}

.middle-banner-dots .dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.35);
    cursor: pointer;
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

.middle-banner-dots .dot.active {
    background: white;
    transform: scale(1.15);
}

.middle-banner-dots .dot:hover {
    background: rgba(255, 255, 255, 0.6);
}

/* ============================================
   Navigation - Transparent on Hero Banner
   ============================================ */
.nav.nav-transparent {
    background: rgba(0, 0, 0, 0.35) !important;
    backdrop-filter: saturate(180%) blur(20px) !important;
    -webkit-backdrop-filter: saturate(180%) blur(20px) !important;
    border-bottom: 1px solid rgba(255, 255, 255, 0.12);
}

.nav.nav-transparent .nav-link {
    color: rgba(255, 255, 255, 0.95) !important;
    text-shadow: 0 1px 3px rgba(0,0,0,0.3);
}

.nav.nav-transparent .nav-link:hover {
    color: white !important;
}

.nav.nav-transparent .logo-text {
    color: white;
}

.nav.nav-transparent .search-btn,
.nav.nav-transparent .lang-btn {
    color: rgba(255, 255, 255, 0.9);
    border-color: rgba(255, 255, 255, 0.3);
}

.nav.nav-transparent .mobile-menu-toggle {
    color: rgba(255, 255, 255, 0.95);
    border-color: rgba(255, 255, 255, 0.35);
    background: rgba(255, 255, 255, 0.08);
}

.nav.nav-transparent .search-btn:hover,
.nav.nav-transparent .lang-btn:hover {
    background: rgba(255, 255, 255, 0.15);
    color: white;
}

.nav.nav-transparent .has-dropdown svg {
    stroke: rgba(255, 255, 255, 0.9);
}

/* When scrolled, always show solid background */
.nav.nav-transparent.scrolled {
    background: rgba(30, 50, 70, 0.95);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
}

/* ============================================
   Premium UX Refinements (Apple-like)
   ============================================ */
:root {
    --color-bg-secondary: #f5f5f7;
    --color-text-primary: #1d1d1f;
    --color-text-secondary: #424245;
}

body {
    background: radial-gradient(1200px 600px at 100% -120px, rgba(30, 80, 174, 0.06), transparent 45%),
                radial-gradient(900px 420px at -120px 30%, rgba(64, 156, 255, 0.06), transparent 38%),
                var(--color-bg-primary);
}

.section-header .section-title,
.page-title,
.detail-title {
    letter-spacing: -0.02em;
}

.category-card,
.product-card,
.feature-card,
.detail-specs,
.detail-features {
    border-radius: 18px;
    border: 1px solid rgba(0, 0, 0, 0.06);
    box-shadow: 0 10px 30px rgba(15, 23, 42, 0.06);
}

.category-card:hover,
.product-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 18px 40px rgba(15, 23, 42, 0.12);
}

.btn {
    border-radius: 999px;
    font-weight: 600;
    letter-spacing: 0.01em;
}

.btn-primary {
    box-shadow: 0 10px 22px rgba(30, 80, 174, 0.26);
}

.btn-primary:hover {
    box-shadow: 0 14px 28px rgba(30, 80, 174, 0.35);
}

.hero-banner-title {
    letter-spacing: -0.03em;
}

.hero-banner-desc {
    color: rgba(255, 255, 255, 0.92);
}

.search-btn,
.lang-btn,
.mobile-menu-toggle,
.mobile-search-toggle {
    min-width: 40px;
    min-height: 40px;
}

.mobile-nav-link,
.mobile-nav-sublink,
.mobile-nav-utility {
    min-height: 44px;
    display: flex;
    align-items: center;
}

.back-to-top {
    position: fixed;
    right: 16px;
    bottom: 18px;
    width: 46px;
    height: 46px;
    border-radius: 999px;
    border: 1px solid rgba(0, 0, 0, 0.12);
    background: rgba(255, 255, 255, 0.92);
    color: #111827;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 8px 20px rgba(0, 0, 0, 0.15);
    z-index: 1200;
    opacity: 0;
    transform: translateY(12px);
    pointer-events: none;
    transition: opacity 0.2s ease, transform 0.2s ease;
}

.back-to-top.show {
    opacity: 1;
    transform: translateY(0);
    pointer-events: auto;
}

.back-to-top:hover {
    background: #111827;
    color: #fff;
}

/* In-page anchors clear the sticky nav (Apple-style product pages) */
section[id] {
    scroll-margin-top: 72px;
}

.product-detail-empty {
    min-height: 280px;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: var(--space-xl);
    background: var(--color-bg-secondary);
    border-radius: 16px;
}

.product-detail-empty-actions {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-md);
    justify-content: center;
}

.nav .nav-link:focus-visible,
.nav .search-btn:focus-visible,
.nav .lang-btn:focus-visible,
.btn:focus-visible,
button.mobile-menu-toggle:focus-visible {
    outline: 2px solid var(--color-brand);
    outline-offset: 3px;
}

@media (max-width: 768px) {
    .container {
        padding-left: 16px;
        padding-right: 16px;
    }

    .hero-banner {
        min-height: 84vh;
    }

    .hero-banner-content {
        text-align: center;
        max-width: 100%;
        margin-left: auto;
        margin-right: auto;
        margin-bottom: 110px;
        padding-left: 6px;
        padding-right: 6px;
    }

    .hero-banner-slide.active .hero-banner-content {
        transform: translateX(0) translateY(0);
    }

    .hero-banner-title {
        font-size: clamp(1.3125rem, 7vw, 2.1rem);
        letter-spacing: -0.02em;
        line-height: 1.08;
    }

    .hero-banner-desc {
        font-size: 10.5px;
        line-height: 1.6;
    }

    .hero-banner-actions {
        flex-direction: row;
        margin: 0 auto;
        gap: 10px;
        justify-content: center;
    }

    .hero-banner-actions .btn-lg {
        padding: 8px 18px;
        font-size: 11px;
    }
    .hero-banner-actions .btn-outline-light.btn-lg {
        text-align: center;
        justify-content: center;
    }

    .hero-banner-controls {
        bottom: 30px;
    }

    .hero-banner-prev,
    .hero-banner-next {
        display: none;
    }
    
    .hero-banner-scroll {
        bottom: 20px;
    }

    .category-card,
    .product-card {
        border-radius: 16px;
    }

    .mobile-nav-panel {
        border-top-left-radius: 16px;
        border-top-right-radius: 16px;
    }

    .mobile-search-shell {
        border-top-left-radius: 16px;
        border-top-right-radius: 16px;
        padding-bottom: calc(24px + env(safe-area-inset-bottom));
    }

    .category-showcase,
    .products,
    .technology,
    .about,
    .contact {
        padding-top: 36px;
        padding-bottom: 28px;
    }

    .tech-header {
        margin-bottom: var(--space-lg);
    }

    .about-content {
        margin-bottom: var(--space-lg);
    }

    .products-grid {
        margin-bottom: var(--space-lg);
    }

    .middle-banner {
        height: 360px;
        margin-bottom: 12px;
    }

    .section-header {
        margin-bottom: var(--space-md);
    }

    .footer {
        padding: 32px 0 20px;
    }

    .products-cta {
        margin-top: var(--space-lg);
    }

    .product-overlay {
        padding: 10px;
    }

    .product-text {
        background: linear-gradient(to top, rgba(0,0,0,0.55) 0%, rgba(0,0,0,0.2) 60%, transparent 100%);
        padding: 8px 10px 4px;
        border-radius: 6px;
        max-width: 90%;
    }
}

@media (prefers-reduced-motion: reduce) {
    html {
        scroll-behavior: auto;
    }
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
    .feature-item:hover {
        transform: none;
    }
}

.category-product-card {
    background: #fff;
    border-radius: 20px;
    overflow: hidden;
    border: 1px solid rgba(0, 0, 0, 0.06);
    box-shadow: 0 2px 12px rgba(0, 0, 0, 0.06);
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.category-product-card:hover {
    transform: translateY(-6px);
    box-shadow: 0 16px 40px rgba(0, 0, 0, 0.12);
}

.category-product-card .product-image {
    aspect-ratio: 1 / 1;
    background: linear-gradient(180deg, #f8f9fb 0%, #f1f3f7 100%);
}

.category-product-card .product-info {
    padding: 20px;
    text-align: center;
}

.category-product-card .product-category {
    display: inline-block;
    font-size: 11px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    color: var(--color-brand);
    margin-bottom: 6px;
}

.category-product-card .product-model {
    font-size: 13px;
    color: #9ca3af;
    margin-bottom: 8px;
}

.category-product-card .product-info h4 {
    font-family: var(--font-display);
    font-size: 18px;
    font-weight: 600;
    color: var(--color-text-primary);
    margin-bottom: 4px;
    letter-spacing: -0.01em;
}

.category-products .products-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}

.product-detail-content {
    padding: 60px 0;
    background: #fff;
}

.product-detail-rich-content {
    max-width: 900px;
    margin: 0 auto;
    line-height: 1.8;
    color: #374151;
    font-size: 16px;
}

.product-detail-rich-content h1,
.product-detail-rich-content h2,
.product-detail-rich-content h3,
.product-detail-rich-content h4 {
    font-family: var(--font-display);
    color: var(--color-text-primary);
    margin-top: 1.5em;
    margin-bottom: 0.5em;
    letter-spacing: -0.01em;
}

.product-detail-rich-content h2 {
    font-size: 28px;
    font-weight: 700;
}

.product-detail-rich-content h3 {
    font-size: 22px;
    font-weight: 600;
}

.product-detail-rich-content p {
    margin-bottom: 1em;
}

.product-detail-rich-content img {
    max-width: 100%;
    height: auto;
    border-radius: 12px;
    margin: 1em 0;
}

.product-detail-rich-content table {
    width: 100%;
    border-collapse: collapse;
    margin: 1em 0;
}

.product-detail-rich-content table th,
.product-detail-rich-content table td {
    padding: 12px 16px;
    border: 1px solid #e5e7eb;
    text-align: left;
}

.product-detail-rich-content table th {
    background: #f9fafb;
    font-weight: 600;
    color: var(--color-text-primary);
}

.product-detail-rich-content ul,
.product-detail-rich-content ol {
    padding-left: 1.5em;
    margin-bottom: 1em;
}

.product-detail-rich-content li {
    margin-bottom: 0.5em;
}

.product-detail-rich-content blockquote {
    border-left: 4px solid var(--color-brand);
    padding: 1em 1.5em;
    margin: 1em 0;
    background: #f8f9fb;
    border-radius: 0 12px 12px 0;
}

.feature-tag {
    display: inline-block;
    font-size: 12px;
    font-weight: 500;
    color: var(--color-brand);
    background: rgba(30, 80, 174, 0.08);
    padding: 5px 12px;
    border-radius: 980px;
    margin: 3px 4px;
}

.category-header-banner {
    position: relative;
    min-height: 200px;
    background-size: cover;
    background-position: center;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    color: #fff;
    border-radius: 0 0 24px 24px;
    overflow: hidden;
}

.category-header-banner::before {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(180deg, rgba(0,0,0,0.3) 0%, rgba(0,0,0,0.5) 100%);
}

.category-header-banner .container {
    position: relative;
    z-index: 1;
}

.category-header-banner h1 {
    font-family: var(--font-display);
    font-size: clamp(28px, 4vw, 44px);
    font-weight: 700;
    text-shadow: 0 2px 8px rgba(0,0,0,0.3);
    margin-bottom: 8px;
}

.category-header-banner p {
    font-size: clamp(14px, 2vw, 18px);
    opacity: 0.9;
    text-shadow: 0 1px 4px rgba(0,0,0,0.3);
}

@media (max-width: 1024px) {
    .category-products .products-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 640px) {
    .category-products .products-grid {
        grid-template-columns: 1fr;
    }
    .category-layout {
        grid-template-columns: 1fr;
    }
    .category-filters {
        display: none;
    }
}