/* ============================================
   style.css - 爱游戏(AYX)官方网站 - IGAME
   Generated for cp-igame.com
   Contains: Reset, Variables, Layout, Components, Animations, Dark Mode, Responsive
   ============================================ */

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

html {
    scroll-behavior: smooth;
    -webkit-text-size-adjust: 100%;
}

body {
    font-family: 'Segoe UI', -apple-system, BlinkMacSystemFont, Roboto, Arial, sans-serif;
    background: #f5f5f5;
    color: #333;
    line-height: 1.6;
    transition: background 0.3s ease, color 0.3s ease;
    min-height: 100vh;
    overflow-x: hidden;
}

/* ----- CSS Variables (Light) ----- */
:root {
    --color-primary: #ff6b35;
    --color-primary-hover: #e55a2b;
    --color-secondary: #e94560;
    --color-bg-dark: #1a1a2e;
    --color-bg-mid: #16213e;
    --color-bg-light: #f5f5f5;
    --color-card-bg: #ffffff;
    --color-card-shadow: rgba(0, 0, 0, 0.05);
    --color-text: #333333;
    --color-text-light: #666666;
    --color-heading: #1a1a2e;
    --color-border: #e0e0e0;
    --color-glass: rgba(255, 255, 255, 0.15);
    --color-glass-border: rgba(255, 255, 255, 0.25);
    --color-overlay: rgba(0, 0, 0, 0.4);
    --color-success: #28a745;
    --color-warning: #ffc107;
    --color-danger: #dc3545;
    --font-size-sm: 0.875rem;
    --font-size-base: 1rem;
    --font-size-lg: 1.25rem;
    --font-size-xl: 1.5rem;
    --font-size-2xl: 2rem;
    --font-size-3xl: 2.5rem;
    --spacing-xs: 0.25rem;
    --spacing-sm: 0.5rem;
    --spacing-md: 1rem;
    --spacing-lg: 1.5rem;
    --spacing-xl: 2rem;
    --spacing-2xl: 3rem;
    --border-radius-sm: 8px;
    --border-radius-md: 16px;
    --border-radius-lg: 20px;
    --border-radius-xl: 30px;
    --border-radius-full: 50%;
    --transition-fast: 0.2s ease;
    --transition-base: 0.3s ease;
    --transition-slow: 0.5s ease;
    --max-width: 1200px;
    --header-height: 70px;
}

/* ----- Dark Mode Variables ----- */
body.dark {
    --color-primary: #ff6b35;
    --color-primary-hover: #ff8555;
    --color-bg-dark: #0a0a0a;
    --color-bg-mid: #1a1a2e;
    --color-bg-light: #121212;
    --color-card-bg: #1e1e1e;
    --color-card-shadow: rgba(0, 0, 0, 0.3);
    --color-text: #e0e0e0;
    --color-text-light: #aaaaaa;
    --color-heading: #ff6b35;
    --color-border: #333333;
    --color-glass: rgba(255, 255, 255, 0.08);
    --color-glass-border: rgba(255, 255, 255, 0.15);
    --color-overlay: rgba(0, 0, 0, 0.6);
}

/* ----- Typography ----- */
h1, h2, h3, h4, h5, h6 {
    font-weight: 700;
    line-height: 1.3;
    color: var(--color-heading);
    transition: color 0.3s ease;
}

h1 { font-size: var(--font-size-3xl); }
h2 { font-size: var(--font-size-2xl); }
h3 { font-size: var(--font-size-xl); }

p {
    margin-bottom: var(--spacing-md);
    color: var(--color-text);
}

a {
    color: var(--color-primary);
    text-decoration: none;
    transition: color var(--transition-base);
}

a:hover {
    color: var(--color-primary-hover);
}

img, svg {
    max-width: 100%;
    height: auto;
    display: block;
}

ul, ol {
    list-style: none;
    padding-left: 0;
}

/* ----- Utility ----- */
.container {
    width: 100%;
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0 var(--spacing-lg);
}

/* ----- Header & Navigation ----- */
header {
    background: linear-gradient(135deg, var(--color-bg-dark), var(--color-bg-mid));
    color: #fff;
    padding: 0 var(--spacing-lg);
    position: sticky;
    top: 0;
    z-index: 1000;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
}

.header-inner {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    min-height: var(--header-height);
    gap: var(--spacing-md);
}

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

.logo svg {
    width: 160px;
    height: auto;
    transition: transform var(--transition-base);
}

.logo a:hover svg {
    transform: scale(1.05);
}

/* Navigation */
nav ul {
    display: flex;
    gap: var(--spacing-xs);
    flex-wrap: wrap;
    align-items: center;
}

nav a {
    color: rgba(255, 255, 255, 0.85);
    text-decoration: none;
    font-weight: 500;
    padding: 8px 16px;
    border-radius: var(--border-radius-sm);
    transition: background var(--transition-base), color var(--transition-base);
    position: relative;
    font-size: var(--font-size-sm);
}

nav a::after {
    content: '';
    position: absolute;
    bottom: 4px;
    left: 50%;
    transform: translateX(-50%);
    width: 0;
    height: 2px;
    background: var(--color-primary);
    transition: width var(--transition-base);
    border-radius: 2px;
}

nav a:hover::after,
nav a.active::after {
    width: 60%;
}

nav a:hover,
nav a.active {
    background: rgba(255, 107, 53, 0.2);
    color: #fff;
}

/* Header Actions */
.header-actions {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.search-box {
    display: flex;
    align-items: center;
    background: var(--color-glass);
    border: 1px solid var(--color-glass-border);
    border-radius: 50px;
    padding: 4px 12px;
    transition: border-color var(--transition-base), background var(--transition-base);
}

.search-box:focus-within {
    border-color: var(--color-primary);
    background: rgba(255, 255, 255, 0.2);
}

.search-box input {
    background: transparent;
    border: none;
    color: #fff;
    outline: none;
    padding: 6px 8px;
    width: 130px;
    font-size: var(--font-size-sm);
}

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

.search-box button {
    background: transparent;
    border: none;
    color: rgba(255, 255, 255, 0.7);
    cursor: pointer;
    font-size: 1.1rem;
    padding: 4px;
    transition: color var(--transition-base);
}

.search-box button:hover {
    color: var(--color-primary);
}

#darkModeToggle,
#mobileMenuToggle {
    background: transparent;
    border: none;
    color: rgba(255, 255, 255, 0.8);
    font-size: 1.5rem;
    cursor: pointer;
    padding: 6px 10px;
    border-radius: var(--border-radius-sm);
    transition: background var(--transition-base), color var(--transition-base);
    line-height: 1;
}

#darkModeToggle:hover,
#mobileMenuToggle:hover {
    background: rgba(255, 255, 255, 0.1);
    color: var(--color-primary);
}

#mobileMenuToggle {
    display: none;
}

/* Breadcrumb */
.breadcrumb {
    padding: 8px var(--spacing-lg);
    font-size: var(--font-size-sm);
    color: rgba(255, 255, 255, 0.6);
    background: rgba(0, 0, 0, 0.2);
    border-top: 1px solid rgba(255, 255, 255, 0.05);
}

.breadcrumb a {
    color: var(--color-primary);
    text-decoration: none;
}

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

/* ----- Hero Banner ----- */
.hero {
    position: relative;
    overflow: hidden;
    min-height: 420px;
    background: var(--color-bg-dark);
}

.hero-slider {
    position: relative;
    width: 100%;
}

.slide {
    display: none;
    position: relative;
    width: 100%;
    min-height: 420px;
    animation: fadeSlide 0.8s ease forwards;
}

.slide.active {
    display: block;
}

@keyframes fadeSlide {
    from { opacity: 0; transform: scale(1.02); }
    to { opacity: 1; transform: scale(1); }
}

.slide-content {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    text-align: center;
    color: #fff;
    z-index: 2;
    padding: var(--spacing-xl);
    width: 85%;
    max-width: 800px;
    background: var(--color-glass);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-radius: var(--border-radius-lg);
    border: 1px solid var(--color-glass-border);
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.3);
}

.slide-content h1,
.slide-content h2 {
    font-size: clamp(1.8rem, 5vw, 2.8rem);
    margin-bottom: var(--spacing-md);
    text-shadow: 0 2px 12px rgba(0, 0, 0, 0.5);
    color: #fff;
}

.slide-content p {
    font-size: clamp(1rem, 2.5vw, 1.3rem);
    margin-bottom: var(--spacing-lg);
    color: rgba(255, 255, 255, 0.9);
}

.btn {
    display: inline-block;
    padding: 12px 36px;
    background: linear-gradient(135deg, var(--color-primary), var(--color-secondary));
    color: #fff;
    text-decoration: none;
    border-radius: var(--border-radius-xl);
    font-weight: 700;
    font-size: var(--font-size-base);
    transition: transform var(--transition-base), box-shadow var(--transition-base);
    box-shadow: 0 4px 15px rgba(255, 107, 53, 0.4);
    border: none;
    cursor: pointer;
}

.btn:hover {
    transform: translateY(-4px);
    box-shadow: 0 8px 25px rgba(255, 107, 53, 0.6);
}

.slide-bg svg {
    width: 100%;
    height: 100%;
    min-height: 420px;
    object-fit: cover;
    display: block;
}

/* Slider Controls */
.slider-controls {
    position: absolute;
    bottom: 20px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    gap: 12px;
    z-index: 3;
}

.dot {
    width: 14px;
    height: 14px;
    border-radius: var(--border-radius-full);
    background: rgba(255, 255, 255, 0.4);
    cursor: pointer;
    transition: background var(--transition-base), transform var(--transition-base);
    border: 2px solid transparent;
}

.dot.active {
    background: var(--color-primary);
    transform: scale(1.2);
    border-color: rgba(255, 255, 255, 0.6);
}

.dot:hover {
    background: var(--color-primary);
}

/* ----- Sections ----- */
.section {
    padding: 60px var(--spacing-lg);
    background: var(--color-card-bg);
    margin: 20px auto;
    border-radius: var(--border-radius-lg);
    box-shadow: 0 8px 30px var(--color-card-shadow);
    transition: background 0.3s ease, box-shadow 0.3s ease, opacity 0.6s ease, transform 0.6s ease;
    max-width: var(--max-width);
    opacity: 0;
    transform: translateY(30px);
}

.section.visible {
    opacity: 1;
    transform: translateY(0);
}

.section h2 {
    font-size: clamp(1.6rem, 4vw, 2.2rem);
    margin-bottom: var(--spacing-xl);
    color: var(--color-heading);
    border-left: 5px solid var(--color-primary);
    padding-left: 16px;
    position: relative;
}

.section h2::after {
    content: '';
    position: absolute;
    left: 0;
    bottom: -6px;
    width: 60px;
    height: 3px;
    background: var(--color-primary);
    border-radius: 3px;
}

.section h3 {
    font-size: var(--font-size-xl);
    margin: var(--spacing-lg) 0 var(--spacing-sm);
    color: var(--color-text);
}

/* ----- Grid Layouts ----- */
.brand-details,
.culture-grid,
.team-grid,
.product-grid,
.service-cards,
.core-grid,
.news-grid,
.related-grid,
.case-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--spacing-xl);
    margin-top: var(--spacing-lg);
}

/* ----- Cards ----- */
.team-card,
.product-card,
.service-card,
.core-item,
.case-card,
.article-card,
.related-item,
.culture-item {
    background: var(--color-card-bg);
    padding: var(--spacing-xl);
    border-radius: var(--border-radius-md);
    box-shadow: 0 4px 16px var(--color-card-shadow);
    transition: transform var(--transition-base), box-shadow var(--transition-base);
    text-align: center;
    border: 1px solid transparent;
    position: relative;
    overflow: hidden;
}

.team-card::before,
.product-card::before,
.service-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, var(--color-primary), var(--color-secondary));
    transform: scaleX(0);
    transform-origin: left;
    transition: transform var(--transition-slow);
}

.team-card:hover::before,
.product-card:hover::before,
.service-card:hover::before {
    transform: scaleX(1);
}

.team-card:hover,
.product-card:hover,
.service-card:hover,
.core-item:hover,
.case-card:hover,
.article-card:hover {
    transform: translateY(-6px);
    box-shadow: 0 12px 30px rgba(0, 0, 0, 0.12);
    border-color: var(--color-primary);
}

.team-card svg,
.product-card svg,
.case-card svg {
    margin: 0 auto var(--spacing-md);
    border-radius: var(--border-radius-sm);
    transition: transform var(--transition-base);
}

.team-card:hover svg,
.product-card:hover svg {
    transform: scale(1.05);
}

.team-card h3,
.product-card h3,
.service-card h3,
.core-item h3,
.case-card h3,
.article-card h3 {
    margin-bottom: var(--spacing-sm);
    color: var(--color-heading);
}

.team-card p,
.product-card p,
.service-card p,
.core-item p,
.case-card p,
.article-card p {
    color: var(--color-text-light);
    font-size: var(--font-size-sm);
}

/* ----- Author Info ----- */
.author-info {
    margin-top: var(--spacing-xl);
    padding: var(--spacing-lg);
    background: rgba(255, 107, 53, 0.05);
    border-radius: var(--border-radius-sm);
    font-size: var(--font-size-sm);
    border-left: 4px solid var(--color-primary);
}

.author-info p {
    margin-bottom: var(--spacing-xs);
}

/* ----- FAQ ----- */
.faq-list {
    max-width: 800px;
    margin: 0 auto;
}

.faq-item {
    border-bottom: 1px solid var(--color-border);
    padding: var(--spacing-md) 0;
    transition: border-color 0.3s ease;
}

.faq-question {
    font-weight: 600;
    cursor: pointer;
    padding: var(--spacing-md);
    background: rgba(0, 0, 0, 0.02);
    border-radius: var(--border-radius-sm);
    transition: background var(--transition-base), color var(--transition-base);
    position: relative;
    padding-right: 40px;
}

.faq-question::after {
    content: '+';
    position: absolute;
    right: 16px;
    top: 50%;
    transform: translateY(-50%);
    font-size: 1.4rem;
    font-weight: 300;
    transition: transform var(--transition-base);
}

.faq-item.active .faq-question::after {
    transform: translateY(-50%) rotate(45deg);
}

.faq-question:hover {
    background: var(--color-primary);
    color: #fff;
}

.faq-answer {
    padding: var(--spacing-md) var(--spacing-lg);
    display: none;
    background: rgba(0, 0, 0, 0.01);
    border-radius: 0 0 var(--border-radius-sm) var(--border-radius-sm);
    color: var(--color-text-light);
    font-size: var(--font-size-sm);
    line-height: 1.7;
}

.faq-item.active .faq-answer {
    display: block;
    animation: fadeIn 0.4s ease;
}

@keyframes fadeIn {
    from { opacity: 0; max-height: 0; }
    to { opacity: 1; max-height: 500px; }
}

/* ----- HowTo ----- */
.howto-content {
    max-width: 800px;
    margin: 0 auto;
    text-align: left;
}

.howto-content h3 {
    margin-top: var(--spacing-lg);
    color: var(--color-heading);
}

.howto-content ol {
    padding-left: 24px;
    margin: var(--spacing-md) 0;
}

.howto-content li {
    margin: var(--spacing-sm) 0;
    color: var(--color-text);
    line-height: 1.7;
}

/* ----- Contact ----- */
.contact-info p {
    margin: var(--spacing-sm) 0;
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.contact-info svg {
    display: inline-block;
    margin: var(--spacing-sm) auto;
}

/* ----- Friend Links & Sitemap ----- */
.friend-links {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-md);
    justify-content: center;
}

.friend-links a {
    padding: 8px 16px;
    background: rgba(255, 107, 53, 0.08);
    border-radius: var(--border-radius-sm);
    transition: background var(--transition-base), color var(--transition-base);
}

.friend-links a:hover {
    background: var(--color-primary);
    color: #fff;
}

/* ----- Footer ----- */
footer {
    background: linear-gradient(135deg, var(--color-bg-dark), #0f0f1a);
    color: rgba(255, 255, 255, 0.7);
    padding: var(--spacing-2xl) var(--spacing-lg);
    text-align: center;
    margin-top: var(--spacing-2xl);
}

.footer-inner {
    max-width: var(--max-width);
    margin: 0 auto;
}

footer p {
    margin: var(--spacing-sm) 0;
    font-size: var(--font-size-sm);
    color: rgba(255, 255, 255, 0.6);
}

footer a {
    color: var(--color-primary);
    text-decoration: none;
    transition: color var(--transition-base);
}

footer a:hover {
    color: #fff;
    text-decoration: underline;
}

/* ----- Back to Top ----- */
#backToTop {
    position: fixed;
    bottom: 30px;
    right: 30px;
    background: linear-gradient(135deg, var(--color-primary), var(--color-secondary));
    color: #fff;
    border: none;
    padding: 14px 20px;
    border-radius: var(--border-radius-full);
    font-size: 1.2rem;
    cursor: pointer;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.3);
    display: none;
    z-index: 999;
    transition: transform var(--transition-base), box-shadow var(--transition-base);
    line-height: 1;
}

#backToTop.show {
    display: block;
    animation: fadeInUp 0.4s ease;
}

@keyframes fadeInUp {
    from { opacity: 0; transform: translateY(20px); }
    to { opacity: 1; transform: translateY(0); }
}

#backToTop:hover {
    transform: translateY(-4px) scale(1.05);
    box-shadow: 0 8px 25px rgba(255, 107, 53, 0.5);
}

/* ----- Scroll Animations ----- */
.section {
    opacity: 0;
    transform: translateY(40px);
    transition: opacity 0.7s ease, transform 0.7s ease;
}

.section.visible {
    opacity: 1;
    transform: translateY(0);
}

/* ----- Dark Mode Specifics ----- */
body.dark .search-box {
    background: rgba(255, 255, 255, 0.05);
}

body.dark .search-box input::placeholder {
    color: rgba(255, 255, 255, 0.3);
}

body.dark .faq-question {
    background: rgba(255, 255, 255, 0.03);
}

body.dark .faq-question:hover {
    background: var(--color-primary);
}

body.dark .author-info {
    background: rgba(255, 107, 53, 0.1);
}

body.dark .friend-links a {
    background: rgba(255, 107, 53, 0.1);
}

/* ----- Responsive Design ----- */
@media (max-width: 1024px) {
    .header-inner {
        gap: var(--spacing-sm);
    }

    nav ul {
        gap: 4px;
    }

    nav a {
        padding: 6px 12px;
        font-size: 0.8rem;
    }

    .search-box input {
        width: 100px;
    }
}

@media (max-width: 768px) {
    :root {
        --header-height: 60px;
    }

    header {
        padding: 0 var(--spacing-md);
    }

    .header-inner {
        flex-wrap: nowrap;
    }

    nav ul {
        display: none;
        flex-direction: column;
        width: 100%;
        background: var(--color-bg-dark);
        padding: var(--spacing-md);
        position: absolute;
        top: var(--header-height);
        left: 0;
        right: 0;
        box-shadow: 0 8px 20px rgba(0, 0, 0, 0.5);
        border-top: 1px solid rgba(255, 255, 255, 0.05);
        z-index: 999;
        gap: var(--spacing-xs);
    }

    nav ul.show {
        display: flex;
    }

    nav a {
        padding: 12px 16px;
        font-size: var(--font-size-base);
        border-radius: var(--border-radius-sm);
    }

    #mobileMenuToggle {
        display: block;
    }

    .search-box {
        display: none;
    }

    .search-box.mobile-show {
        display: flex;
        position: absolute;
        top: var(--header-height);
        left: 0;
        right: 0;
        background: var(--color-bg-dark);
        padding: var(--spacing-sm) var(--spacing-md);
        border-radius: 0;
        z-index: 998;
    }

    .search-box.mobile-show input {
        width: 100%;
    }

    .slide-content {
        width: 92%;
        padding: var(--spacing-lg);
    }

    .slide-content h1,
    .slide-content h2 {
        font-size: 1.6rem;
    }

    .section {
        padding: 40px var(--spacing-md);
        margin: 12px auto;
        border-radius: var(--border-radius-md);
    }

    .section h2 {
        font-size: 1.5rem;
    }

    .brand-details,
    .culture-grid,
    .team-grid,
    .product-grid,
    .service-cards,
    .core-grid,
    .news-grid,
    .related-grid,
    .case-grid {
        grid-template-columns: 1fr;
        gap: var(--spacing-lg);
    }

    .team-card,
    .product-card,
    .service-card,
    .core-item,
    .case-card,
    .article-card,
    .related-item {
        padding: var(--spacing-lg);
    }

    .faq-question {
        font-size: var(--font-size-sm);
        padding: var(--spacing-sm) var(--spacing-md);
    }

    .howto-content ol {
        padding-left: 18px;
    }

    .contact-info p {
        flex-direction: column;
        align-items: flex-start;
    }

    footer {
        padding: var(--spacing-xl) var(--spacing-md);
    }

    #backToTop {
        bottom: 20px;
        right: 20px;
        padding: 12px 16px;
        font-size: 1rem;
    }
}

@media (max-width: 480px) {
    .logo svg {
        width: 120px;
    }

    .slide-content {
        padding: var(--spacing-md);
    }

    .slide-content h1,
    .slide-content h2 {
        font-size: 1.3rem;
    }

    .slide-content p {
        font-size: 0.9rem;
    }

    .btn {
        padding: 10px 24px;
        font-size: 0.9rem;
    }

    .section {
        padding: 30px var(--spacing-sm);
    }

    .section h2 {
        font-size: 1.3rem;
        padding-left: 12px;
    }

    .team-card svg,
    .product-card svg,
    .case-card svg {
        width: 100px;
        height: auto;
    }
}

/* ----- High DPI / Retina ----- */
@media (-webkit-min-device-pixel-ratio: 2), (min-resolution: 192dpi) {
    .slide-content {
        backdrop-filter: blur(16px);
        -webkit-backdrop-filter: blur(16px);
    }
}

/* ----- Reduced Motion ----- */
@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
        scroll-behavior: auto !important;
    }

    .section {
        opacity: 1;
        transform: none;
    }
}

/* ----- Print Styles ----- */
@media print {
    header,
    footer,
    #backToTop,
    .slider-controls,
    .search-box,
    #darkModeToggle,
    #mobileMenuToggle {
        display: none !important;
    }

    body {
        background: #fff;
        color: #000;
    }

    .section {
        break-inside: avoid;
        box-shadow: none;
        border: 1px solid #ddd;
        margin: 10px 0;
        opacity: 1;
        transform: none;
    }

    a {
        color: #000;
        text-decoration: underline;
    }
}