/* ============================================
   WePoker - Global Poker Platform
   CSS Variables & Reset
   ============================================ */

:root {
    /* Color System */
    --bg-primary: #0a0a0f;
    --bg-secondary: #12121a;
    --bg-tertiary: #1a1a26;
    --bg-card: rgba(26, 26, 38, 0.7);
    
    --accent-primary: #00d4ff;
    --accent-secondary: #ff6b35;
    --accent-gold: #ffd700;
    --accent-gold-dark: #b8860b;
    --accent-purple: #9945ff;
    --accent-green: #00ff88;
    --accent-red: #ff3366;
    
    --gradient-primary: linear-gradient(135deg, #00d4ff 0%, #9945ff 50%, #ff6b35 100%);
    --gradient-gold: linear-gradient(135deg, #ffd700 0%, #ff8c00 50%, #ff6347 100%);
    --gradient-card: linear-gradient(145deg, rgba(26, 26, 38, 0.9) 0%, rgba(18, 18, 26, 0.95) 100%);
    --gradient-text: linear-gradient(135deg, #00d4ff 0%, #9945ff 100%);
    --gradient-text-gold: linear-gradient(135deg, #ffd700 0%, #ff8c00 100%);
    --gradient-wechat: linear-gradient(135deg, #07C160 0%, #10ad5c 50%, #06a34a 100%);
    --accent-wechat: #07C160;
    --accent-wechat-dark: #06a34a;
    --gradient-text-wechat: linear-gradient(135deg, #07C160 0%, #9df073 100%);
    --shadow-glow-wechat: 0 0 40px rgba(7, 193, 96, 0.4);
    
    --text-primary: #ffffff;
    --text-secondary: #a1a1aa;
    --text-tertiary: #71717a;
    
    --glass-bg: rgba(20, 20, 30, 0.6);
    --glass-border: rgba(255, 255, 255, 0.08);
    --glass-border-hover: rgba(0, 212, 255, 0.3);
    --glass-shadow: 0 8px 32px rgba(0, 0, 0, 0.4);
    
    --shadow-glow: 0 0 40px rgba(0, 212, 255, 0.3);
    --shadow-glow-gold: 0 0 40px rgba(255, 215, 0, 0.3);
    
    /* Typography */
    --font-display: 'Orbitron', sans-serif;
    --font-body: 'Noto Sans SC', -apple-system, BlinkMacSystemFont, sans-serif;
    
    /* Spacing */
    --space-xs: 0.25rem;
    --space-sm: 0.5rem;
    --space-md: 1rem;
    --space-lg: 1.5rem;
    --space-xl: 2rem;
    --space-2xl: 3rem;
    --space-3xl: 4rem;
    
    /* Radius */
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 20px;
    --radius-xl: 28px;
    --radius-full: 9999px;
    
    /* Transitions */
    --transition-fast: 0.2s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-base: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-slow: 0.6s cubic-bezier(0.4, 0, 0.2, 1);
    
    /* Container */
    --container-max: 1400px;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body {
    font-family: var(--font-body);
    background: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.6;
    overflow-x: hidden;
    position: relative;
    min-height: 100vh;
}

a {
    text-decoration: none;
    color: inherit;
}

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

ul, ol {
    list-style: none;
}

img {
    max-width: 100%;
    display: block;
}

/* ============================================
   Background Effects
   ============================================ */

#particles-canvas {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 0;
    pointer-events: none;
}

.gradient-mesh {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 0;
    pointer-events: none;
    background: 
        radial-gradient(ellipse 80% 60% at 20% 20%, rgba(0, 212, 255, 0.12) 0%, transparent 60%),
        radial-gradient(ellipse 70% 50% at 80% 30%, rgba(153, 69, 255, 0.10) 0%, transparent 60%),
        radial-gradient(ellipse 90% 70% at 50% 90%, rgba(255, 107, 53, 0.08) 0%, transparent 60%),
        radial-gradient(ellipse 60% 40% at 90% 80%, rgba(255, 215, 0, 0.06) 0%, transparent 60%);
}

.grain-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 0;
    pointer-events: none;
    opacity: 0.03;
    background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noise'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noise)'/%3E%3C/svg%3E");
}

/* ============================================
   Navbar
   ============================================ */

.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 100;
    padding: var(--space-md) 0;
    transition: var(--transition-base);
    backdrop-filter: blur(0px);
}

.navbar.scrolled {
    padding: var(--space-sm) 0;
    background: rgba(10, 10, 15, 0.85);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--glass-border);
}

.nav-container {
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 var(--space-xl);
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--space-xl);
}

.logo {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    flex-shrink: 0;
}

.logo-icon {
    font-size: 2rem;
    background: var(--gradient-text);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    filter: drop-shadow(0 0 10px rgba(0, 212, 255, 0.5));
}

.logo-text {
    font-family: var(--font-display);
    font-size: 1.5rem;
    font-weight: 800;
    letter-spacing: 0.05em;
    color: var(--text-primary);
}

.logo-accent {
    background: var(--gradient-text);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.nav-menu {
    display: flex;
    align-items: center;
    gap: var(--space-xl);
}

.nav-link {
    position: relative;
    font-size: 0.95rem;
    font-weight: 500;
    color: var(--text-secondary);
    padding: var(--space-sm) var(--space-xs);
    transition: var(--transition-fast);
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%) scaleX(0);
    width: 24px;
    height: 2px;
    background: var(--gradient-primary);
    border-radius: var(--radius-full);
    transition: var(--transition-base);
}

.nav-link:hover,
.nav-link.active {
    color: var(--text-primary);
}

.nav-link:hover::after,
.nav-link.active::after {
    transform: translateX(-50%) scaleX(1);
}

.nav-actions {
    display: flex;
    align-items: center;
    gap: var(--space-md);
    flex-shrink: 0;
}

.btn-login {
    font-size: 0.9rem;
    font-weight: 500;
    color: var(--text-secondary);
    padding: var(--space-sm) var(--space-lg);
    border-radius: var(--radius-md);
    transition: var(--transition-fast);
}

.btn-login:hover {
    color: var(--text-primary);
}

.btn-register {
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--bg-primary);
    background: var(--gradient-primary);
    padding: 0.6rem 1.25rem;
    border-radius: var(--radius-md);
    transition: var(--transition-base);
    position: relative;
    overflow: hidden;
}

.btn-register::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.2), transparent);
    transition: left 0.5s;
}

.btn-register:hover::before {
    left: 100%;
}

.btn-register:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-glow);
}

.btn-wechat-nav {
    font-size: 0.9rem;
    font-weight: 600;
    color: #ffffff;
    background: var(--gradient-wechat);
    padding: 0.6rem 1.25rem;
    border-radius: var(--radius-md);
    transition: var(--transition-base);
    position: relative;
    overflow: hidden;
    display: inline-flex;
    align-items: center;
}

.btn-wechat-nav::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.2), transparent);
    transition: left 0.5s;
}

.btn-wechat-nav:hover::before {
    left: 100%;
}

.btn-wechat-nav:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-glow-wechat);
}

.btn-wechat {
    background: var(--gradient-wechat);
    gap: 10px;
}

.btn-wechat:hover {
    box-shadow: var(--shadow-glow-wechat);
}

.hamburger {
    display: none;
    flex-direction: column;
    gap: 5px;
    cursor: pointer;
    padding: var(--space-sm);
}

.hamburger span {
    display: block;
    width: 24px;
    height: 2px;
    background: var(--text-primary);
    border-radius: var(--radius-full);
    transition: var(--transition-base);
}

.hamburger.active span:nth-child(1) {
    transform: translateY(7px) rotate(45deg);
}

.hamburger.active span:nth-child(2) {
    opacity: 0;
}

.hamburger.active span:nth-child(3) {
    transform: translateY(-7px) rotate(-45deg);
}

/* ============================================
   Hero Section
   ============================================ */

.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding: calc(100px + var(--space-3xl)) var(--space-xl) var(--space-3xl);
    z-index: 1;
    max-width: var(--container-max);
    margin: 0 auto;
    gap: var(--space-3xl);
}

.hero-content {
    flex: 1;
    max-width: 650px;
    animation: fadeInUp 0.8s ease-out;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: var(--space-sm);
    padding: 0.5rem 1rem;
    background: rgba(0, 212, 255, 0.1);
    border: 1px solid rgba(0, 212, 255, 0.2);
    border-radius: var(--radius-full);
    font-size: 0.8rem;
    font-weight: 600;
    color: var(--accent-primary);
    letter-spacing: 0.05em;
    margin-bottom: var(--space-xl);
}

.pulse-dot {
    width: 8px;
    height: 8px;
    background: var(--accent-primary);
    border-radius: 50%;
    position: relative;
}

.pulse-dot::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 100%;
    height: 100%;
    background: inherit;
    border-radius: 50%;
    animation: pulse 2s infinite;
}

@keyframes pulse {
    0% { transform: translate(-50%, -50%) scale(1); opacity: 1; }
    100% { transform: translate(-50%, -50%) scale(3); opacity: 0; }
}

.hero-title {
    font-family: var(--font-display);
    font-size: clamp(2.5rem, 6vw, 5rem);
    font-weight: 900;
    line-height: 1.1;
    margin-bottom: var(--space-lg);
    letter-spacing: -0.02em;
}

.title-line {
    display: block;
}

.gradient-text {
    background: var(--gradient-text);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.gradient-text.gold {
    background: var(--gradient-text-gold);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-subtitle {
    font-size: 1.1rem;
    color: var(--text-secondary);
    line-height: 1.8;
    margin-bottom: var(--space-2xl);
}

.hero-stats {
    display: flex;
    align-items: center;
    gap: var(--space-xl);
    padding: var(--space-xl) 0;
    margin-bottom: var(--space-2xl);
    border-top: 1px solid var(--glass-border);
    border-bottom: 1px solid var(--glass-border);
}

.stat-item {
    display: flex;
    flex-direction: column;
    gap: var(--space-xs);
}

.stat-number {
    font-family: var(--font-display);
    font-size: 2rem;
    font-weight: 800;
    background: var(--gradient-text);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.stat-label {
    font-size: 0.85rem;
    color: var(--text-tertiary);
}

.divider-v {
    width: 1px;
    height: 40px;
    background: var(--glass-border);
}

.hero-cta {
    display: flex;
    align-items: center;
    gap: var(--space-md);
    flex-wrap: wrap;
}

.btn-primary {
    display: inline-flex;
    align-items: center;
    gap: var(--space-sm);
    font-family: var(--font-display);
    font-size: 0.95rem;
    font-weight: 700;
    letter-spacing: 0.03em;
    color: #fff;
    background: var(--gradient-primary);
    padding: 1rem 1.75rem;
    border-radius: var(--radius-md);
    transition: var(--transition-base);
    position: relative;
    overflow: hidden;
}

.btn-primary::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.2), transparent);
    transition: left 0.6s;
}

.btn-primary:hover::before {
    left: 100%;
}

.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-glow);
}

.btn-glow {
    box-shadow: 0 0 30px rgba(0, 212, 255, 0.3);
}

.btn-glow:hover {
    box-shadow: 0 0 50px rgba(0, 212, 255, 0.5);
}

.btn-gold {
    background: var(--gradient-gold);
    color: #1a1a00;
}

.btn-gold:hover {
    box-shadow: var(--shadow-glow-gold);
}

.btn-icon {
    font-size: 0.8rem;
}

.btn-secondary {
    display: inline-flex;
    align-items: center;
    gap: var(--space-sm);
    font-size: 0.95rem;
    font-weight: 600;
    color: var(--text-primary);
    padding: 1rem 1.5rem;
    border-radius: var(--radius-md);
    border: 1px solid var(--glass-border);
    background: var(--glass-bg);
    transition: var(--transition-base);
}

.btn-secondary:hover {
    border-color: var(--glass-border-hover);
    background: rgba(0, 212, 255, 0.05);
    transform: translateY(-2px);
}

.arrow-icon {
    transition: transform var(--transition-fast);
}

.btn-secondary:hover .arrow-icon {
    transform: translateX(4px);
}

.hero-visual {
    flex: 1;
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 500px;
    animation: fadeIn 1s ease-out 0.3s both;
}

.card-stack {
    position: relative;
    width: 380px;
    height: 500px;
    perspective: 1500px;
}

.poker-card {
    position: absolute;
    width: 220px;
    height: 320px;
    background: linear-gradient(145deg, #ffffff 0%, #f0f0f0 100%);
    border-radius: 16px;
    box-shadow: 
        0 20px 60px rgba(0, 0, 0, 0.5),
        0 0 80px rgba(0, 212, 255, 0.1);
    padding: 16px;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    transform-style: preserve-3d;
    transition: transform 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

.card-1 {
    top: 0;
    left: 20px;
    transform: rotate(-12deg) translateY(0);
    z-index: 3;
    animation: cardFloat1 6s ease-in-out infinite;
}

.card-2 {
    top: 40px;
    left: 80px;
    transform: rotate(3deg) translateY(0);
    z-index: 2;
    animation: cardFloat2 7s ease-in-out infinite;
}

.card-3 {
    top: 80px;
    left: 140px;
    transform: rotate(14deg) translateY(0);
    z-index: 1;
    animation: cardFloat3 8s ease-in-out infinite;
}

@keyframes cardFloat1 {
    0%, 100% { transform: rotate(-12deg) translateY(0); }
    50% { transform: rotate(-8deg) translateY(-15px); }
}

@keyframes cardFloat2 {
    0%, 100% { transform: rotate(3deg) translateY(0); }
    50% { transform: rotate(-1deg) translateY(-20px); }
}

@keyframes cardFloat3 {
    0%, 100% { transform: rotate(14deg) translateY(0); }
    50% { transform: rotate(10deg) translateY(-10px); }
}

.poker-card:hover {
    z-index: 10 !important;
}

.card-corner {
    display: flex;
    flex-direction: column;
    align-items: center;
    font-weight: 900;
}

.top-left {
    align-self: flex-start;
}

.bottom-right {
    align-self: flex-end;
    transform: rotate(180deg);
}

.card-value {
    font-family: var(--font-display);
    font-size: 1.5rem;
    color: #1a1a26;
    line-height: 1;
}

.card-suit {
    font-size: 1.3rem;
    color: #1a1a26;
}

.card-suit.red,
.card-center.red {
    color: #ff3366;
}

.card-center {
    font-size: 6rem;
    text-align: center;
    color: #1a1a26;
    line-height: 1;
}

.glow-orb {
    position: absolute;
    border-radius: 50%;
    filter: blur(60px);
    opacity: 0.6;
    animation: orbFloat 10s ease-in-out infinite;
}

.orb-1 {
    width: 300px;
    height: 300px;
    background: radial-gradient(circle, rgba(0, 212, 255, 0.4), transparent 70%);
    top: -50px;
    right: -50px;
    animation-delay: 0s;
}

.orb-2 {
    width: 250px;
    height: 250px;
    background: radial-gradient(circle, rgba(153, 69, 255, 0.4), transparent 70%);
    bottom: 0;
    left: 0;
    animation-delay: -3s;
}

.orb-3 {
    width: 200px;
    height: 200px;
    background: radial-gradient(circle, rgba(255, 107, 53, 0.3), transparent 70%);
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    animation-delay: -6s;
}

@keyframes orbFloat {
    0%, 100% { transform: translate(0, 0) scale(1); }
    33% { transform: translate(30px, -30px) scale(1.1); }
    66% { transform: translate(-20px, 20px) scale(0.95); }
}

/* ============================================
   Section Base Styles
   ============================================ */

.section-header {
    text-align: center;
    max-width: 700px;
    margin: 0 auto var(--space-3xl);
    z-index: 1;
    position: relative;
}

.section-tag {
    display: inline-block;
    font-family: var(--font-display);
    font-size: 0.8rem;
    font-weight: 700;
    letter-spacing: 0.2em;
    color: var(--accent-primary);
    padding: 0.4rem 1rem;
    background: rgba(0, 212, 255, 0.1);
    border: 1px solid rgba(0, 212, 255, 0.2);
    border-radius: var(--radius-full);
    margin-bottom: var(--space-lg);
}

.section-tag.light {
    color: var(--accent-gold);
    background: rgba(255, 215, 0, 0.1);
    border-color: rgba(255, 215, 0, 0.2);
}

.section-tag.gradient {
    background: var(--gradient-primary);
    color: #fff;
    border: none;
}

.section-title {
    font-family: var(--font-display);
    font-size: clamp(1.8rem, 4vw, 3rem);
    font-weight: 800;
    line-height: 1.2;
    margin-bottom: var(--space-md);
    letter-spacing: -0.02em;
}

.section-desc {
    font-size: 1.05rem;
    color: var(--text-secondary);
    line-height: 1.8;
}

/* ============================================
   Glass Card Base
   ============================================ */

.glass-card {
    background: var(--glass-bg);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-lg);
    box-shadow: var(--glass-shadow);
    transition: var(--transition-base);
}

.glass-card:hover {
    border-color: var(--glass-border-hover);
    box-shadow: 
        var(--glass-shadow),
        0 0 40px rgba(0, 212, 255, 0.1);
}

/* ============================================
   Features Section
   ============================================ */

.features {
    position: relative;
    z-index: 1;
    padding: var(--space-3xl) var(--space-xl);
    max-width: var(--container-max);
    margin: 0 auto;
}

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

.feature-card {
    padding: var(--space-xl);
    display: flex;
    flex-direction: column;
    gap: var(--space-lg);
    position: relative;
    overflow: hidden;
}

.feature-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: var(--gradient-primary);
    opacity: 0;
    transition: opacity var(--transition-base);
    z-index: -1;
}

.feature-card:hover::before {
    opacity: 0.05;
}

.feature-icon-wrap {
    width: 64px;
    height: 64px;
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    transition: var(--transition-base);
}

.icon-guard {
    background: linear-gradient(135deg, rgba(0, 212, 255, 0.2), rgba(0, 212, 255, 0.05));
    color: var(--accent-primary);
}

.icon-friend {
    background: linear-gradient(135deg, rgba(153, 69, 255, 0.2), rgba(153, 69, 255, 0.05));
    color: var(--accent-purple);
}

.icon-hall {
    background: linear-gradient(135deg, rgba(255, 107, 53, 0.2), rgba(255, 107, 53, 0.05));
    color: var(--accent-secondary);
}

.icon-trophy {
    background: linear-gradient(135deg, rgba(255, 215, 0, 0.2), rgba(255, 215, 0, 0.05));
    color: var(--accent-gold);
}

.icon-spark {
    background: linear-gradient(135deg, rgba(0, 255, 136, 0.2), rgba(0, 255, 136, 0.05));
    color: var(--accent-green);
}

.icon-game {
    background: linear-gradient(135deg, rgba(255, 51, 102, 0.2), rgba(255, 51, 102, 0.05));
    color: var(--accent-red);
}

.feature-icon-wrap::after {
    content: '';
    position: absolute;
    inset: 0;
    border-radius: inherit;
    background: inherit;
    filter: blur(20px);
    opacity: 0.5;
    z-index: -1;
    transition: opacity var(--transition-base);
}

.feature-card:hover .feature-icon-wrap::after {
    opacity: 0.8;
}

.feature-icon {
    width: 32px;
    height: 32px;
}

.feature-tag {
    display: inline-block;
    font-size: 0.75rem;
    font-weight: 600;
    color: var(--accent-primary);
    margin-bottom: var(--space-sm);
}

.feature-title {
    font-family: var(--font-display);
    font-size: 1.4rem;
    font-weight: 700;
    margin-bottom: var(--space-sm);
}

.feature-desc {
    font-size: 0.95rem;
    color: var(--text-secondary);
    line-height: 1.7;
    margin-bottom: var(--space-md);
}

.feature-link {
    display: inline-flex;
    align-items: center;
    gap: var(--space-xs);
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--accent-primary);
    transition: var(--transition-fast);
    margin-top: auto;
}

.feature-link span {
    transition: transform var(--transition-fast);
}

.feature-link:hover {
    color: var(--text-primary);
}

.feature-link:hover span {
    transform: translateX(4px);
}

/* ============================================
   Tournament Section
   ============================================ */

.tournament {
    position: relative;
    z-index: 1;
    padding: var(--space-3xl) var(--space-xl);
    overflow: hidden;
}

.tournament-bg {
    position: absolute;
    inset: 0;
    background: 
        radial-gradient(ellipse 60% 80% at 30% 50%, rgba(255, 215, 0, 0.08) 0%, transparent 60%),
        radial-gradient(ellipse 40% 60% at 80% 80%, rgba(255, 107, 53, 0.06) 0%, transparent 60%);
    pointer-events: none;
}

.tournament-content {
    position: relative;
    max-width: var(--container-max);
    margin: 0 auto;
    display: grid;
    grid-template-columns: 1.1fr 0.9fr;
    gap: var(--space-3xl);
    align-items: center;
}

.tournament-left {
    animation: fadeInLeft 0.8s ease-out;
}

.tournament-title {
    font-family: var(--font-display);
    font-size: clamp(2rem, 5vw, 3.5rem);
    font-weight: 900;
    line-height: 1.15;
    margin-bottom: var(--space-lg);
    letter-spacing: -0.02em;
}

.tournament-desc {
    font-size: 1.05rem;
    color: var(--text-secondary);
    line-height: 1.8;
    margin-bottom: var(--space-2xl);
}

.tournament-stats {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-lg);
    margin-bottom: var(--space-2xl);
    padding: var(--space-xl);
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-lg);
    backdrop-filter: blur(10px);
}

.t-stat {
    display: flex;
    flex-direction: column;
    gap: var(--space-xs);
    text-align: center;
}

.t-num {
    font-family: var(--font-display);
    font-size: 1.8rem;
    font-weight: 800;
    background: var(--gradient-text-gold);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.t-label {
    font-size: 0.8rem;
    color: var(--text-tertiary);
}

.tournament-right {
    animation: fadeInRight 0.8s ease-out;
}

.trophy-display {
    padding: var(--space-xl);
    position: relative;
    overflow: hidden;
}

.trophy-glow {
    position: absolute;
    top: -100px;
    right: -100px;
    width: 300px;
    height: 300px;
    background: radial-gradient(circle, rgba(255, 215, 0, 0.2), transparent 70%);
    filter: blur(40px);
    pointer-events: none;
}

.trophy-icon {
    font-size: 4rem;
    margin-bottom: var(--space-lg);
    filter: drop-shadow(0 0 20px rgba(255, 215, 0, 0.5));
    animation: trophyBounce 3s ease-in-out infinite;
}

@keyframes trophyBounce {
    0%, 100% { transform: translateY(0) rotate(0deg); }
    50% { transform: translateY(-10px) rotate(2deg); }
}

.trophy-label {
    display: inline-flex;
    align-items: center;
    gap: var(--space-xs);
    font-size: 0.8rem;
    font-weight: 600;
    color: var(--accent-green);
    margin-bottom: var(--space-sm);
}

.trophy-label::before {
    content: '';
    width: 8px;
    height: 8px;
    background: var(--accent-green);
    border-radius: 50%;
    animation: pulse 2s infinite;
}

.trophy-name {
    font-family: var(--font-display);
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: var(--space-lg);
}

.trophy-progress {
    margin-bottom: var(--space-lg);
}

.progress-bar {
    width: 100%;
    height: 8px;
    background: rgba(255, 255, 255, 0.05);
    border-radius: var(--radius-full);
    overflow: hidden;
    margin-bottom: var(--space-sm);
}

.progress-fill {
    height: 100%;
    background: var(--gradient-gold);
    border-radius: var(--radius-full);
    position: relative;
    overflow: hidden;
}

.progress-fill::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.3), transparent);
    animation: shimmer 2s infinite;
}

@keyframes shimmer {
    0% { transform: translateX(-100%); }
    100% { transform: translateX(100%); }
}

.progress-meta {
    display: flex;
    justify-content: space-between;
    font-size: 0.8rem;
    color: var(--text-tertiary);
}

.trophy-prize {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--space-md) var(--space-lg);
    background: rgba(255, 215, 0, 0.08);
    border: 1px solid rgba(255, 215, 0, 0.15);
    border-radius: var(--radius-md);
    margin-bottom: var(--space-lg);
}

.prize-label {
    font-size: 0.85rem;
    color: var(--text-secondary);
}

.prize-value {
    font-family: var(--font-display);
    font-size: 1.3rem;
    font-weight: 800;
    background: var(--gradient-text-gold);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.btn-join {
    width: 100%;
    font-family: var(--font-display);
    font-size: 0.95rem;
    font-weight: 700;
    letter-spacing: 0.03em;
    color: #1a1a00;
    background: var(--gradient-gold);
    padding: 0.9rem 1.5rem;
    border-radius: var(--radius-md);
    transition: var(--transition-base);
}

.btn-join:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-glow-gold);
}

/* ============================================
   Games Section
   ============================================ */

.games {
    position: relative;
    z-index: 1;
    padding: var(--space-3xl) var(--space-xl);
    max-width: var(--container-max);
    margin: 0 auto;
}

.games-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    grid-template-rows: repeat(2, 1fr);
    gap: var(--space-xl);
}

.game-card {
    background: var(--glass-bg);
    backdrop-filter: blur(20px);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-lg);
    overflow: hidden;
    transition: var(--transition-base);
    transform-style: preserve-3d;
}

.game-card.large {
    grid-column: span 2;
    grid-row: span 2;
}

.game-card:hover {
    transform: translateY(-8px);
    border-color: var(--glass-border-hover);
    box-shadow: 
        var(--glass-shadow),
        0 20px 60px rgba(0, 0, 0, 0.4),
        0 0 60px rgba(0, 212, 255, 0.1);
}

.game-image {
    position: relative;
    aspect-ratio: 16 / 10;
    overflow: hidden;
}

.game-card.large .game-image {
    aspect-ratio: 16 / 12;
}

.game-img-1 {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
}

.game-img-2 {
    background: linear-gradient(135deg, #f093fb 0%, #f5576c 100%);
}

.game-img-3 {
    background: linear-gradient(135deg, #4facfe 0%, #00f2fe 100%);
}

.game-img-4 {
    background: linear-gradient(135deg, #43e97b 0%, #38f9d7 100%);
}

.game-img-5 {
    background: linear-gradient(135deg, #fa709a 0%, #fee140 100%);
}

.game-image::before {
    content: '';
    position: absolute;
    inset: 0;
    background-image: 
        radial-gradient(circle at 20% 30%, rgba(255,255,255,0.2) 0%, transparent 40%),
        radial-gradient(circle at 80% 70%, rgba(255,255,255,0.15) 0%, transparent 40%);
}

.game-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(180deg, transparent 40%, rgba(10, 10, 15, 0.9) 100%);
}

.game-badge {
    position: absolute;
    top: var(--space-md);
    right: var(--space-md);
    font-size: 0.75rem;
    font-weight: 700;
    padding: 0.35rem 0.75rem;
    border-radius: var(--radius-full);
    backdrop-filter: blur(10px);
    z-index: 2;
}

.game-badge.hot {
    background: rgba(255, 51, 102, 0.9);
    color: #fff;
}

.game-badge.new {
    background: rgba(0, 255, 136, 0.9);
    color: #0a0a0f;
}

.game-info {
    padding: var(--space-lg);
}

.game-title {
    font-family: var(--font-display);
    font-size: 1.15rem;
    font-weight: 700;
    margin-bottom: var(--space-sm);
}

.game-card.large .game-title {
    font-size: 1.6rem;
}

.game-desc {
    font-size: 0.9rem;
    color: var(--text-secondary);
    line-height: 1.6;
    margin-bottom: var(--space-md);
}

.game-card.large .game-desc {
    font-size: 1rem;
}

.game-tags {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-xs);
}

.tag {
    font-size: 0.75rem;
    font-weight: 500;
    color: var(--text-secondary);
    padding: 0.25rem 0.6rem;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-full);
}

/* ============================================
   Ambassadors Section
   ============================================ */

.ambassadors {
    position: relative;
    z-index: 1;
    padding: var(--space-3xl) var(--space-xl);
    max-width: var(--container-max);
    margin: 0 auto;
}

.ambassadors-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--space-xl);
}

.ambassador-card {
    background: var(--glass-bg);
    backdrop-filter: blur(20px);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-lg);
    overflow: hidden;
    transition: var(--transition-base);
    transform-style: preserve-3d;
}

.ambassador-card:hover {
    transform: translateY(-10px);
    border-color: var(--glass-border-hover);
    box-shadow: 
        var(--glass-shadow),
        0 25px 80px rgba(0, 0, 0, 0.5);
}

.ambassador-image {
    position: relative;
    aspect-ratio: 3 / 4;
    overflow: hidden;
    background: linear-gradient(135deg, #1a1a26 0%, #12121a 100%);
}

.ambassador-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform var(--transition-slow);
}

.ambassador-card:hover .ambassador-image img {
    transform: scale(1.08);
}

.ambassador-image.fallback img {
    display: none;
}

.ambassador-fallback {
    position: absolute;
    inset: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    font-family: var(--font-display);
    font-size: 5rem;
    font-weight: 900;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    opacity: 0;
    transition: opacity var(--transition-base);
}

.ambassador-image.fallback .ambassador-fallback {
    opacity: 1;
}

.card-shine {
    position: absolute;
    top: 0;
    left: -100%;
    width: 50%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.15), transparent);
    transform: skewX(-25deg);
    transition: left 0.8s;
}

.ambassador-card:hover .card-shine {
    left: 150%;
}

.ambassador-info {
    padding: var(--space-lg);
}

.ambassador-role {
    font-size: 0.75rem;
    font-weight: 600;
    letter-spacing: 0.05em;
    color: var(--accent-primary);
    text-transform: uppercase;
    margin-bottom: var(--space-xs);
}

.ambassador-name {
    font-family: var(--font-display);
    font-size: 1.3rem;
    font-weight: 700;
    margin-bottom: var(--space-sm);
}

.ambassador-desc {
    font-size: 0.85rem;
    color: var(--text-secondary);
    line-height: 1.6;
    margin-bottom: var(--space-lg);
    min-height: 4.5rem;
}

.ambassador-achievements {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-sm);
    padding-top: var(--space-md);
    border-top: 1px solid var(--glass-border);
}

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

.ach-num {
    font-family: var(--font-display);
    font-size: 1.2rem;
    font-weight: 800;
    background: var(--gradient-text-gold);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.ach-label {
    font-size: 0.7rem;
    color: var(--text-tertiary);
}

/* ============================================
   Download Section
   ============================================ */

.download {
    position: relative;
    z-index: 1;
    padding: var(--space-3xl) var(--space-xl);
    overflow: hidden;
}

.download-bg-orb {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 800px;
    height: 800px;
    background: radial-gradient(circle, rgba(0, 212, 255, 0.1) 0%, transparent 60%);
    pointer-events: none;
}

.download-content {
    position: relative;
    max-width: var(--container-max);
    margin: 0 auto;
    display: grid;
    grid-template-columns: 1.2fr 1fr;
    gap: var(--space-3xl);
    align-items: center;
    padding: var(--space-3xl);
}

.download-left {
    animation: fadeInLeft 0.8s ease-out;
}

.download-title {
    font-family: var(--font-display);
    font-size: clamp(1.8rem, 4vw, 2.8rem);
    font-weight: 900;
    line-height: 1.2;
    margin: var(--space-md) 0 var(--space-lg);
    letter-spacing: -0.02em;
}

.download-desc {
    font-size: 1rem;
    color: var(--text-secondary);
    line-height: 1.8;
    margin-bottom: var(--space-xl);
}

.download-features {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-md);
    margin-bottom: var(--space-2xl);
}

.df-item {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    font-size: 0.9rem;
    color: var(--text-secondary);
}

.df-icon {
    width: 22px;
    height: 22px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.75rem;
    font-weight: 700;
    color: #0a0a0f;
    background: var(--gradient-primary);
    border-radius: 50%;
    flex-shrink: 0;
}

.download-buttons {
    display: flex;
    gap: var(--space-md);
    margin-bottom: var(--space-xl);
    flex-wrap: wrap;
}

.btn-download {
    display: flex;
    align-items: center;
    gap: var(--space-md);
    padding: 0.9rem 1.5rem;
    border-radius: var(--radius-md);
    transition: var(--transition-base);
    min-width: 200px;
}

.btn-download.android {
    background: linear-gradient(135deg, #3ddc84 0%, #0d9d58 100%);
    color: #fff;
}

.btn-download.h5 {
    background: var(--gradient-primary);
    color: #fff;
}

.btn-download:hover {
    transform: translateY(-3px);
    box-shadow: 0 15px 40px rgba(0, 0, 0, 0.3);
}

.dl-icon {
    width: 28px;
    height: 28px;
    flex-shrink: 0;
}

.dl-text {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    line-height: 1.2;
}

.dl-label {
    font-family: var(--font-display);
    font-size: 0.95rem;
    font-weight: 700;
}

.dl-platform {
    font-size: 0.7rem;
    opacity: 0.85;
    letter-spacing: 0.05em;
}

.qr-code-wrap {
    display: flex;
    align-items: center;
    gap: var(--space-lg);
}

.qr-code {
    width: 90px;
    height: 90px;
    background: #fff;
    border-radius: var(--radius-md);
    padding: 6px;
    position: relative;
    overflow: hidden;
}

.qr-pattern {
    width: 100%;
    height: 100%;
    background-image: 
        linear-gradient(45deg, #000 25%, transparent 25%),
        linear-gradient(-45deg, #000 25%, transparent 25%),
        linear-gradient(45deg, transparent 75%, #000 75%),
        linear-gradient(-45deg, transparent 75%, #000 75%);
    background-size: 10px 10px;
    background-position: 0 0, 0 5px, 5px -5px, -5px 0px;
    border-radius: 4px;
}

.qr-label {
    font-size: 0.85rem;
    color: var(--text-secondary);
}

.download-right {
    display: flex;
    align-items: center;
    justify-content: center;
    animation: fadeInRight 0.8s ease-out;
}

.phone-mockup {
    position: relative;
}

.phone-frame {
    position: relative;
    width: 300px;
    height: 600px;
    background: linear-gradient(145deg, #2a2a3a, #1a1a26);
    border-radius: 40px;
    padding: 14px;
    box-shadow: 
        0 30px 80px rgba(0, 0, 0, 0.6),
        inset 0 1px 0 rgba(255, 255, 255, 0.1);
    transform: rotateY(-10deg) rotateX(5deg);
    transition: transform var(--transition-base);
}

.phone-frame:hover {
    transform: rotateY(-5deg) rotateX(2deg) translateY(-10px);
}

.phone-screen {
    width: 100%;
    height: 100%;
    background: var(--bg-secondary);
    border-radius: 28px;
    overflow: hidden;
    position: relative;
}

.phone-notch {
    position: absolute;
    top: 14px;
    left: 50%;
    transform: translateX(-50%);
    width: 100px;
    height: 26px;
    background: linear-gradient(145deg, #2a2a3a, #1a1a26);
    border-radius: 0 0 18px 18px;
    z-index: 10;
}

.phone-app {
    padding: 60px 16px 16px;
    height: 100%;
    display: flex;
    flex-direction: column;
    gap: 16px;
    background: 
        radial-gradient(ellipse 100% 60% at 50% 0%, rgba(0, 212, 255, 0.1) 0%, transparent 60%),
        var(--bg-secondary);
}

.phone-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.ph-logo {
    font-family: var(--font-display);
    font-size: 0.9rem;
    font-weight: 800;
    color: var(--accent-primary);
}

.ph-avatar {
    width: 32px;
    height: 32px;
    background: var(--gradient-primary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 0.8rem;
    color: #fff;
}

.phone-banner {
    background: var(--gradient-primary);
    border-radius: 12px;
    padding: 14px;
    color: #fff;
}

.pb-title {
    font-weight: 700;
    font-size: 0.9rem;
    margin-bottom: 2px;
}

.pb-sub {
    font-size: 0.7rem;
    opacity: 0.9;
}

.phone-games {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 8px;
}

.pg-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 4px;
    padding: 10px 6px;
    background: var(--glass-bg);
    border-radius: 10px;
    border: 1px solid var(--glass-border);
}

.pg-icon {
    font-size: 1.2rem;
}

.pg-name {
    font-size: 0.65rem;
    color: var(--text-secondary);
}

.phone-tables {
    display: flex;
    flex-direction: column;
    gap: 8px;
    flex: 1;
    overflow: hidden;
}

.pt-table {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 10px 12px;
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: 10px;
}

.pt-left {
    display: flex;
    flex-direction: column;
    gap: 2px;
}

.pt-name {
    font-size: 0.75rem;
    font-weight: 600;
}

.pt-stats {
    font-size: 0.6rem;
    color: var(--accent-green);
}

.pt-btn {
    font-size: 0.65rem;
    font-weight: 600;
    padding: 4px 10px;
    background: var(--gradient-primary);
    border-radius: 6px;
    color: #fff;
}

.phone-glow {
    position: absolute;
    inset: -20px;
    background: radial-gradient(ellipse 60% 40% at 50% 50%, rgba(0, 212, 255, 0.2), transparent 70%);
    z-index: -1;
    filter: blur(30px);
}

/* ============================================
   WeChat Contact Section
   ============================================ */

.contact {
    position: relative;
    z-index: 1;
    padding: var(--space-3xl) var(--space-xl);
    overflow: hidden;
}

.contact-bg-orb {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 800px;
    height: 800px;
    background: radial-gradient(circle, rgba(7, 193, 96, 0.1) 0%, transparent 60%);
    pointer-events: none;
}

.contact-content {
    position: relative;
    max-width: var(--container-max);
    margin: 0 auto;
    display: grid;
    grid-template-columns: 1.2fr 1fr;
    gap: var(--space-3xl);
    align-items: center;
    padding: var(--space-3xl);
}

.contact-left {
    animation: fadeInLeft 0.8s ease-out;
}

.section-tag.gradient-wechat {
    background: var(--gradient-wechat);
    color: #fff;
    border: none;
}

.gradient-text-wechat {
    background: var(--gradient-text-wechat);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.contact-title {
    font-family: var(--font-display);
    font-size: clamp(1.8rem, 4vw, 2.8rem);
    font-weight: 900;
    line-height: 1.2;
    margin: var(--space-md) 0 var(--space-lg);
    letter-spacing: -0.02em;
}

.contact-desc {
    font-size: 1rem;
    color: var(--text-secondary);
    line-height: 1.8;
    margin-bottom: var(--space-xl);
}

.contact-features {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-md);
    margin-bottom: var(--space-2xl);
}

.cf-item {
    display: flex;
    align-items: center;
    gap: var(--space-md);
    padding: var(--space-md);
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-md);
    transition: var(--transition-base);
}

.cf-item:hover {
    background: rgba(7, 193, 96, 0.05);
    border-color: rgba(7, 193, 96, 0.2);
    transform: translateY(-2px);
}

.cf-icon {
    width: 44px;
    height: 44px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--radius-md);
    font-size: 1.2rem;
    flex-shrink: 0;
}

.cf-icon.wechat {
    background: linear-gradient(135deg, rgba(7, 193, 96, 0.2), rgba(7, 193, 96, 0.05));
    color: var(--accent-wechat);
}

.wechat-check {
    width: 22px;
    height: 22px;
}

.cf-icon.gift {
    background: linear-gradient(135deg, rgba(255, 215, 0, 0.2), rgba(255, 215, 0, 0.05));
}

.cf-icon.shield {
    background: linear-gradient(135deg, rgba(0, 212, 255, 0.2), rgba(0, 212, 255, 0.05));
}

.cf-icon.crown {
    background: linear-gradient(135deg, rgba(153, 69, 255, 0.2), rgba(153, 69, 255, 0.05));
}

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

.cf-title {
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--text-primary);
}

.cf-sub {
    font-size: 0.78rem;
    color: var(--text-tertiary);
}

.wechat-id-card {
    background: linear-gradient(135deg, rgba(7, 193, 96, 0.1) 0%, rgba(7, 193, 96, 0.02) 100%);
    border: 1px solid rgba(7, 193, 96, 0.2);
    border-radius: var(--radius-lg);
    padding: var(--space-lg) var(--space-xl);
    margin-bottom: var(--space-md);
}

.wid-label {
    font-size: 0.8rem;
    color: var(--accent-wechat);
    font-weight: 600;
    letter-spacing: 0.05em;
    margin-bottom: var(--space-sm);
    opacity: 0.9;
}

.wid-content {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--space-md);
}

.wid-id {
    font-family: var(--font-display);
    font-size: 1.6rem;
    font-weight: 800;
    color: var(--text-primary);
    letter-spacing: 0.02em;
    user-select: all;
}

.wid-copy {
    display: flex;
    align-items: center;
    gap: 6px;
    font-size: 0.85rem;
    font-weight: 600;
    color: #fff;
    background: var(--gradient-wechat);
    padding: 0.6rem 1.1rem;
    border-radius: var(--radius-md);
    transition: var(--transition-base);
    flex-shrink: 0;
}

.wid-copy:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-glow-wechat);
}

.wid-copy.copied {
    background: linear-gradient(135deg, #10ad5c, #06a34a);
}

.wechat-tips {
    font-size: 0.85rem;
    color: var(--text-tertiary);
    padding: var(--space-sm) var(--space-md);
    background: rgba(255, 255, 255, 0.03);
    border-radius: var(--radius-md);
}

.wechat-tips strong {
    color: var(--text-secondary);
}

.contact-right {
    display: flex;
    align-items: center;
    justify-content: center;
    animation: fadeInRight 0.8s ease-out;
}

.wechat-qr-card {
    position: relative;
    background: linear-gradient(145deg, rgba(30, 40, 30, 0.8), rgba(15, 25, 15, 0.9));
    border: 1px solid rgba(7, 193, 96, 0.2);
    border-radius: var(--radius-xl);
    padding: var(--space-xl);
    overflow: hidden;
    backdrop-filter: blur(20px);
    box-shadow: 
        0 20px 60px rgba(0, 0, 0, 0.5),
        0 0 80px rgba(7, 193, 96, 0.1);
}

.qr-header {
    display: flex;
    align-items: center;
    gap: var(--space-md);
    margin-bottom: var(--space-xl);
}

.qr-avatar {
    width: 48px;
    height: 48px;
    border-radius: 14px;
    background: var(--gradient-wechat);
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 4px 15px rgba(7, 193, 96, 0.3);
}

.qr-wechat-icon {
    width: 26px;
    height: 26px;
    color: #fff;
}

.qr-header-text {
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: 2px;
}

.qr-title {
    font-size: 0.95rem;
    font-weight: 700;
    color: var(--text-primary);
}

.qr-sub {
    font-size: 0.75rem;
    color: var(--text-tertiary);
}

.qr-verified {
    display: flex;
    align-items: center;
    gap: 4px;
    font-size: 0.7rem;
    font-weight: 600;
    color: var(--accent-wechat);
    padding: 0.25rem 0.6rem;
    background: rgba(7, 193, 96, 0.12);
    border-radius: var(--radius-full);
}

.qr-code-big {
    position: relative;
    width: 240px;
    height: 240px;
    background: #fff;
    border-radius: var(--radius-lg);
    padding: 16px;
    margin: 0 auto var(--space-lg);
    box-shadow: 
        0 10px 30px rgba(0, 0, 0, 0.3),
        inset 0 0 0 1px rgba(0, 0, 0, 0.05);
}

/* 真实微信二维码图片（用户放到 /images/wechat-qr.jpg 后自动生效） */
.wechat-qr-img {
    position: absolute;
    top: 16px;
    left: 16px;
    width: calc(100% - 32px);
    height: calc(100% - 32px);
    object-fit: cover;
    border-radius: 8px;
    z-index: 2;
    display: block;
    background: #fff;
}

/* 图片加载失败时隐藏，显示假二维码兜底 */
.qr-hide {
    display: none !important;
    visibility: hidden !important;
}

/* 默认：假二维码是隐藏的（因为优先显示真实图片），
   只有当 onerror 触发加了 qr-show 才显示 */
.qr-pattern-wechat {
    display: none;
    width: 100%;
    height: 100%;
    background-image: 
        linear-gradient(45deg, #0a0a0a 25%, transparent 25%),
        linear-gradient(-45deg, #0a0a0a 25%, transparent 25%),
        linear-gradient(45deg, transparent 75%, #0a0a0a 75%),
        linear-gradient(-45deg, transparent 75%, #0a0a0a 75%);
    background-size: 12px 12px;
    background-position: 0 0, 0 6px, 6px -6px, -6px 0px;
    border-radius: 8px;
}
.qr-pattern-wechat.qr-show {
    display: block;
}

/* 如果真实图片加载成功（有 img 且非 qr-hide），自动隐藏中央♠Logo和四角定位框
   （因为真实微信二维码已经自带了这三样）*/
.qr-code-big .wechat-qr-img:not(.qr-hide) ~ .qr-center-logo,
.qr-code-big .wechat-qr-img:not(.qr-hide) ~ .qr-corner {
    display: none;
}

.qr-center-logo {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 52px;
    height: 52px;
    background: var(--gradient-wechat);
    border-radius: 14px;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 
        0 0 0 4px #fff,
        0 4px 15px rgba(0, 0, 0, 0.2);
}

.qr-center-icon {
    font-size: 1.6rem;
    color: #fff;
    font-weight: 900;
}

.qr-corner {
    position: absolute;
    width: 38px;
    height: 38px;
    border: 4px solid #0a0a0a;
}

.qr-corner.tl {
    top: 16px;
    left: 16px;
    border-right: none;
    border-bottom: none;
    border-radius: 4px 0 0 0;
}

.qr-corner.tr {
    top: 16px;
    right: 16px;
    border-left: none;
    border-bottom: none;
    border-radius: 0 4px 0 0;
}

.qr-corner.bl {
    bottom: 16px;
    left: 16px;
    border-right: none;
    border-top: none;
    border-radius: 0 0 0 4px;
}

.qr-corner.br {
    bottom: 16px;
    right: 16px;
    border-left: none;
    border-top: none;
    border-radius: 0 0 4px 0;
}

.qr-footer {
    text-align: center;
}

.qr-note {
    display: inline-flex;
    align-items: center;
    gap: var(--space-xs);
    font-size: 0.85rem;
    color: var(--text-secondary);
    padding: 0.5rem 1rem;
    background: rgba(7, 193, 96, 0.08);
    border: 1px solid rgba(7, 193, 96, 0.15);
    border-radius: var(--radius-full);
}

.qr-note-icon {
    font-size: 1rem;
}

.qr-glow {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 350px;
    height: 350px;
    background: radial-gradient(circle, rgba(7, 193, 96, 0.2) 0%, transparent 60%);
    z-index: -1;
    filter: blur(40px);
    animation: qrGlow 4s ease-in-out infinite;
}

@keyframes qrGlow {
    0%, 100% { opacity: 0.6; transform: translate(-50%, -50%) scale(1); }
    50% { opacity: 1; transform: translate(-50%, -50%) scale(1.1); }
}

/* ============================================
   Footer
   ============================================ */

.footer {
    position: relative;
    z-index: 1;
    background: rgba(10, 10, 15, 0.95);
    border-top: 1px solid var(--glass-border);
    padding: var(--space-3xl) var(--space-xl) var(--space-xl);
    margin-top: var(--space-3xl);
}

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

.footer-top {
    display: grid;
    grid-template-columns: 1.2fr 2fr;
    gap: var(--space-3xl);
    padding-bottom: var(--space-2xl);
    border-bottom: 1px solid var(--glass-border);
}

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

.brand-desc {
    font-size: 0.9rem;
    color: var(--text-secondary);
    line-height: 1.7;
    max-width: 320px;
}

.social-icons {
    display: flex;
    gap: var(--space-sm);
}

.social-icon {
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-md);
    color: var(--text-secondary);
    transition: var(--transition-base);
}

.social-icon svg {
    width: 18px;
    height: 18px;
}

.social-icon:hover {
    color: var(--accent-primary);
    border-color: var(--glass-border-hover);
    transform: translateY(-3px);
}

.footer-links {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--space-xl);
}

.footer-col-title {
    font-family: var(--font-display);
    font-size: 0.85rem;
    font-weight: 700;
    letter-spacing: 0.05em;
    color: var(--text-primary);
    margin-bottom: var(--space-lg);
}

.footer-col ul {
    display: flex;
    flex-direction: column;
    gap: var(--space-sm);
}

.footer-col a {
    font-size: 0.85rem;
    color: var(--text-tertiary);
    transition: var(--transition-fast);
}

.footer-col a:hover {
    color: var(--accent-primary);
    padding-left: 4px;
}

.footer-warning {
    display: flex;
    gap: var(--space-md);
    align-items: flex-start;
    padding: var(--space-xl);
    margin: var(--space-xl) 0;
    background: rgba(255, 215, 0, 0.05);
    border: 1px solid rgba(255, 215, 0, 0.15);
    border-radius: var(--radius-md);
}

.warning-icon {
    font-size: 1.3rem;
    flex-shrink: 0;
}

.warning-text {
    font-size: 0.85rem;
    color: var(--text-secondary);
    line-height: 1.7;
}

.warning-text strong {
    color: var(--accent-gold);
}

.footer-bottom {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-top: var(--space-xl);
    flex-wrap: wrap;
    gap: var(--space-md);
}

.copyright {
    font-size: 0.85rem;
    color: var(--text-tertiary);
}

.footer-meta {
    display: flex;
    gap: var(--space-xl);
    font-size: 0.8rem;
    color: var(--text-tertiary);
}

/* ---------- Footer 底部 SEO 入口（独立一行，不混排） ---------- */
.footer-seo-mini {
    width: 100%;
    order: 3;                 /* PC端保持在最下面，不挤压版权/ICP */
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    align-items: center;
    gap: 8px 12px;
    margin-top: 4px;
    padding-top: 10px;
    border-top: 1px dashed rgba(255,255,255,0.08);
    font-size: 0.78rem;
    color: var(--text-tertiary);
}

.footer-seo-mini a {
    color: rgba(7,193,96,0.85);
    text-decoration: none;
    transition: all 0.2s ease;
    padding: 4px 10px;
    border-radius: 999px;
    background: rgba(7,193,96,0.06);
    border: 1px solid rgba(7,193,96,0.18);
    white-space: nowrap;
}

.footer-seo-mini a:hover {
    color: #fff;
    background: rgba(7,193,96,0.2);
    border-color: rgba(7,193,96,0.6);
    text-shadow: 0 0 6px rgba(7,193,96,0.55);
    transform: translateY(-1px);
}

.footer-seo-sep {
    opacity: 0.3;
    color: var(--text-tertiary);
    font-weight: 400;
    font-size: 1rem;
    line-height: 1;
}

/* ---------- 手机端 footer-bottom / footer-seo-mini 修正 ---------- */
@media (max-width: 768px) {
    .footer-seo-mini {
        justify-content: flex-start;
        text-align: left;
    }
}

@media (max-width: 480px) {
    .footer-seo-mini {
        flex-direction: column;
        align-items: stretch;
        gap: 8px;
    }
    .footer-seo-mini a {
        text-align: center;
        padding: 8px 10px;
        font-size: 0.85rem;
    }
    .footer-seo-sep { display: none; } /* 竖排时去掉分隔符 */
}

/* ---------- Footer「法律条款」列 Sitemap / Robots 链接样式 ---------- */
.footer-seo-divider {
    height: 1px;
    margin: 10px 2px 6px;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.15), transparent);
    list-style: none !important;
    padding: 0 !important;
}

.footer-seo-link {
    display: inline-flex !important;
    align-items: center;
    gap: 6px;
    color: rgba(7,193,96,0.92) !important;
    font-weight: 700;
    letter-spacing: 0.02em;
}

.footer-seo-link:hover {
    color: #07C160 !important;
    text-shadow: 0 0 10px rgba(7,193,96,0.5);
    padding-left: 0 !important;
}

.footer-seo-icon {
    width: 15px;
    height: 15px;
    flex-shrink: 0;
}

/* ============================================
   Back to Top
   ============================================ */

.back-to-top {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 48px;
    height: 48px;
    background: var(--gradient-primary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #fff;
    opacity: 0;
    visibility: hidden;
    transform: translateY(20px);
    transition: var(--transition-base);
    z-index: 90;
    box-shadow: 0 10px 30px rgba(0, 212, 255, 0.3);
}

.back-to-top svg {
    width: 20px;
    height: 20px;
}

.back-to-top.visible {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.back-to-top:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 40px rgba(0, 212, 255, 0.5);
}

/* ============================================
   Animations
   ============================================ */

@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

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

@keyframes fadeInLeft {
    from {
        opacity: 0;
        transform: translateX(-40px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

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

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

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

/* ============================================
   Responsive Design
   ============================================ */

@media (max-width: 1200px) {
    .features-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .ambassadors-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .games-grid {
        grid-template-columns: repeat(3, 1fr);
    }
    
    .game-card.large {
        grid-column: span 2;
        grid-row: span 1;
    }
    
    .tournament-content {
        grid-template-columns: 1fr;
    }
    
    .download-content {
        grid-template-columns: 1fr;
    }
    
    .contact-content {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 992px) {
    .hero {
        flex-direction: column;
        padding-top: calc(120px + var(--space-2xl));
        min-height: auto;
    }
    
    .hero-content,
    .hero-visual {
        max-width: 100%;
    }
    
    .hero-visual {
        min-height: 400px;
    }
    
    .footer-top {
        grid-template-columns: 1fr;
    }
    
    .footer-links {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .nav-menu {
        display: none;
    }
    
    .nav-actions {
        display: none;
    }
    
    .hamburger {
        display: flex;
    }
}

@media (max-width: 768px) {
    .nav-container {
        padding: 0 var(--space-md);
    }
    
    .hero,
    .features,
    .tournament,
    .games,
    .ambassadors,
    .download,
    .contact {
        padding-left: var(--space-md);
        padding-right: var(--space-md);
    }
    
    .features-grid {
        grid-template-columns: 1fr;
    }
    
    .games-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .game-card.large {
        grid-column: span 2;
    }
    
    .ambassadors-grid {
        grid-template-columns: 1fr;
    }
    
    .hero-stats {
        flex-direction: column;
        align-items: flex-start;
        gap: var(--space-lg);
    }
    
    .divider-v {
        display: none;
    }
    
    .tournament-stats {
        grid-template-columns: 1fr;
    }
    
    .download-features {
        grid-template-columns: 1fr;
    }
    
    .contact-features {
        grid-template-columns: 1fr;
    }
    
    .wid-content {
        flex-direction: column;
        align-items: flex-start;
    }
    
    .wid-copy {
        width: 100%;
        justify-content: center;
    }
    
    .card-stack {
        width: 280px;
        height: 400px;
        transform: scale(0.8);
    }
    
    .footer-links {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .footer-bottom {
        flex-direction: column;
        text-align: center;
    }
    
    .download-content {
        padding: var(--space-xl);
    }
    
    .contact-content {
        padding: var(--space-xl);
    }
    
    .qr-code-big {
        width: 200px;
        height: 200px;
    }
    
    .phone-frame {
        width: 260px;
        height: 520px;
    }
}

@media (max-width: 480px) {
    .games-grid {
        grid-template-columns: 1fr;
    }
    
    .game-card.large {
        grid-column: span 1;
    }
    
    .hero-title {
        font-size: 2.2rem;
    }
    
    .section-title {
        font-size: 1.6rem;
    }
    
    .btn-primary,
    .btn-secondary {
        width: 100%;
        justify-content: center;
    }
    
    .download-buttons {
        flex-direction: column;
    }
    
    .btn-download {
        width: 100%;
        justify-content: center;
    }
    
    .qr-code-wrap {
        flex-direction: column;
        text-align: center;
    }
    
    .footer-links {
        grid-template-columns: 1fr;
    }
    
    .footer-meta {
        flex-direction: column;
        gap: var(--space-sm);
    }
    
    .phone-frame {
        width: 240px;
        height: 480px;
    }
}

/* ============ 400px 以下：iPhone SE (375px) / 小屏安卓 自适应 ============ */
@media (max-width: 400px) {
    :root {
        --space-2xl: 2.5rem;
        --space-xl: 1.5rem;
        --space-lg: 0.9rem;
        --space-md: 0.7rem;
    }

    html {
        font-size: 15px;
    }

    body {
        overflow-x: hidden;
    }

    .hero-title {
        font-size: 1.95rem;
        line-height: 1.2;
        letter-spacing: -0.01em;
    }

    .hero-subtitle {
        font-size: 0.95rem;
        line-height: 1.55;
    }

    .hero-stats .stat-num {
        font-size: 1.8rem;
    }

    .hero-stats .stat-label {
        font-size: 0.75rem;
    }

    .nav-brand .logo-text {
        font-size: 1.15rem;
    }

    .nav-brand .logo-icon {
        font-size: 1.4rem;
    }

    .section-title {
        font-size: 1.4rem;
    }

    .section-subtitle {
        font-size: 0.85rem;
    }

    .btn {
        padding: 0.75rem 1rem;
        font-size: 0.9rem;
    }

    .wid-id {
        font-size: 1.3rem;
        letter-spacing: 0.05em;
    }

    .wechat-qr-card {
        padding: 1.2rem 1rem 1.1rem;
    }

    .qr-code-big {
        width: 180px;
        height: 180px;
    }

    .qr-title {
        font-size: 0.95rem;
    }

    .qr-sub {
        font-size: 0.78rem;
    }

    .qr-center-logo {
        width: 42px;
        height: 42px;
        border-radius: 11px;
    }

    .qr-center-icon {
        font-size: 1.3rem;
    }

    .qr-corner {
        width: 30px;
        height: 30px;
        border-width: 3px;
    }

    .qr-corner.tl { top: 14px; left: 14px; }
    .qr-corner.tr { top: 14px; right: 14px; }
    .qr-corner.bl { bottom: 14px; left: 14px; }
    .qr-corner.br { bottom: 14px; right: 14px; }

    .game-card .game-title {
        font-size: 1rem;
    }

    .feature-card .feature-title {
        font-size: 1rem;
    }

    .feature-card .feature-desc {
        font-size: 0.82rem;
    }

    .card-stack {
        width: 250px;
        height: 360px;
        transform: scale(0.75);
    }
}

/* ============ 大屏 1400px+：优化高清 2K 屏体验 ============ */
@media (min-width: 1400px) {
    html {
        font-size: 17px;
    }

    .nav-container,
    .hero,
    .features,
    .games,
    .ambassadors,
    .tournament,
    .download,
    .contact,
    .footer-content {
        max-width: 1360px;
        margin-inline: auto;
    }

    .hero-title {
        font-size: 3.6rem;
    }
}

/* ============ 横屏模式（手机横屏/折叠屏展开）安全区 ============ */
@media (max-height: 500px) and (orientation: landscape) {
    .hero {
        min-height: auto;
        padding-top: calc(80px + var(--space-xl));
        padding-bottom: var(--space-2xl);
    }

    .hero-visual {
        min-height: 280px;
    }
}

/* ============ 安全区适配 (iPhone X / 灵动岛机型) ============ */
.nav {
    padding-top: env(safe-area-inset-top, 0);
}

.footer {
    padding-bottom: calc(var(--space-xl) + env(safe-area-inset-bottom, 0));
}

/* 减少动效系统偏好 (SEO + 无障碍) */
@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.001ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.001ms !important;
        scroll-behavior: auto !important;
    }
}

/* ==================================================================
   🔥🔥🔥【手机端置顶·加微信卡片】
   手机端 (≤992px) 作为 Hero 区第一个内容展示
   PC端 (>992px) 完全隐藏
   ================================================================== */

/* ---------- 默认：PC 端完全隐藏 ---------- */
.mobile-wechat-card {
    display: none !important;
}

/* ---------- 软玻璃卡（复用 glass 风格变量） ---------- */
.glass-card-soft {
    background: linear-gradient(
        135deg,
        rgba(7, 193, 96, 0.14) 0%,
        rgba(255, 255, 255, 0.07) 40%,
        rgba(124, 58, 237, 0.12) 100%
    );
    border: 1px solid rgba(7, 193, 96, 0.25);
    backdrop-filter: blur(18px) saturate(1.3);
    -webkit-backdrop-filter: blur(18px) saturate(1.3);
    box-shadow:
        0 8px 24px rgba(0, 0, 0, 0.35),
        0 0 0 1px rgba(255, 255, 255, 0.04) inset,
        0 0 40px rgba(7, 193, 96, 0.08);
}

/* ---------- 手机端 (≤992px) 显示 ---------- */
@media (max-width: 992px) {
    .mobile-wechat-card {
        display: flex !important;
        flex-direction: column;
        gap: 1rem;
        width: 100%;
        margin: 0 auto var(--space-lg);
        padding: 1.1rem 1rem 1.15rem;
        border-radius: 20px;
        position: relative;
        overflow: hidden;
        animation: mwCardIn 0.55s cubic-bezier(.2,.9,.3,1.3) both;
    }

    @keyframes mwCardIn {
        from { opacity: 0; transform: translateY(-14px) scale(0.98); }
        to   { opacity: 1; transform: translateY(0) scale(1); }
    }

    /* 左上绿色光斑装饰 */
    .mobile-wechat-card::before {
        content: "";
        position: absolute;
        top: -60px;
        left: -50px;
        width: 180px;
        height: 180px;
        background: radial-gradient(circle, rgba(7,193,96,0.35) 0%, transparent 70%);
        pointer-events: none;
    }

    /* ============ Header ============ */
    .mobile-wechat-header {
        display: flex;
        align-items: center;
        gap: 0.75rem;
        position: relative;
        z-index: 1;
    }
    .mobile-wechat-avatar {
        flex-shrink: 0;
        width: 48px;
        height: 48px;
        border-radius: 14px;
        background: var(--gradient-wechat, linear-gradient(135deg,#07C160 0%,#06AD56 100%));
        display: flex;
        align-items: center;
        justify-content: center;
        box-shadow: 0 4px 14px rgba(7,193,96,0.35), 0 0 0 2px rgba(255,255,255,0.06) inset;
    }
    .mobile-wechat-title {
        flex: 1;
        display: flex;
        flex-direction: column;
        gap: 2px;
    }
    .mobile-wechat-label {
        font-size: 1rem;
        font-weight: 700;
        color: #fff;
        line-height: 1.25;
    }
    .mobile-wechat-tip {
        font-size: 0.75rem;
        color: rgba(255,255,255,0.68);
        line-height: 1.2;
    }
    .mobile-wechat-badge-hot {
        flex-shrink: 0;
        padding: 4px 8px;
        border-radius: 999px;
        font-size: 0.68rem;
        font-weight: 800;
        letter-spacing: 0.05em;
        background: linear-gradient(135deg,#FF4D4F,#FA541C);
        color: #fff;
        box-shadow: 0 3px 8px rgba(250,84,28,0.45);
        animation: mwHotPulse 1.6s ease-in-out infinite;
    }
    @keyframes mwHotPulse {
        0%,100% { transform: scale(1); }
        50% { transform: scale(1.08); }
    }

    /* ============ Body ============ */
    .mobile-wechat-body {
        display: grid;
        grid-template-columns: 120px 1fr;
        gap: 0.9rem;
        align-items: center;
        position: relative;
        z-index: 1;
    }

    .mobile-wechat-qr-box {
        display: flex;
        flex-direction: column;
        gap: 6px;
        align-items: center;
    }
    .mobile-wechat-qr {
        position: relative;
        width: 110px;
        height: 110px;
        background: #fff;
        border-radius: 12px;
        padding: 8px;
        box-shadow: 0 4px 14px rgba(0,0,0,0.3), inset 0 0 0 1px rgba(0,0,0,0.04);
    }
    .mobile-wechat-qr .wechat-qr-img {
        position: absolute;
        top: 8px; left: 8px;
        width: calc(100% - 16px);
        height: calc(100% - 16px);
        object-fit: cover;
        border-radius: 6px;
        z-index: 2;
    }
    .mobile-wechat-qr .qr-pattern-wechat {
        display: none;
        width: 100%; height: 100%;
        border-radius: 6px;
    }
    .mobile-wechat-qr .qr-pattern-wechat.qr-show { display: block; }
    .mobile-wechat-qr .qr-center-logo {
        position: absolute;
        top: 50%; left: 50%;
        transform: translate(-50%,-50%);
        width: 30px; height: 30px;
        border-radius: 8px;
        background: var(--gradient-wechat);
        display: flex; align-items: center; justify-content: center;
        box-shadow: 0 0 0 2px #fff, 0 2px 8px rgba(0,0,0,0.18);
        z-index: 3;
    }
    .mobile-wechat-qr .qr-center-icon {
        font-size: 0.95rem; font-weight: 900; color: #fff;
    }
    /* 真实图加载成功时 隐藏 中心logo */
    .mobile-wechat-qr .wechat-qr-img:not(.qr-hide) ~ .qr-center-logo { display: none; }

    .mobile-wechat-qr-hint {
        font-size: 0.7rem;
        color: rgba(7,193,96,0.9);
        background: rgba(7,193,96,0.1);
        padding: 3px 7px;
        border-radius: 999px;
        white-space: nowrap;
    }

    .mobile-wechat-info {
        display: flex;
        flex-direction: column;
        gap: 0.65rem;
        min-width: 0;
    }
    .mobile-wechat-wid {
        background: rgba(0,0,0,0.35);
        border: 1px solid rgba(7,193,96,0.25);
        border-radius: 12px;
        padding: 0.55rem 0.7rem;
    }
    .mobile-wechat-wid-label {
        font-size: 0.7rem;
        color: rgba(255,255,255,0.58);
        margin-bottom: 2px;
        letter-spacing: 0.06em;
    }
    .mobile-wechat-wid-id {
        font-family: 'SF Mono', Menlo, Consolas, monospace;
        font-size: 1.25rem;
        font-weight: 800;
        background: var(--gradient-wechat);
        -webkit-background-clip: text;
        background-clip: text;
        color: transparent;
        letter-spacing: 0.03em;
        line-height: 1.2;
        word-break: break-all;
    }
    .mobile-wechat-tags {
        display: flex;
        flex-wrap: wrap;
        gap: 0.35rem;
    }
    .mw-tag {
        font-size: 0.68rem;
        padding: 3px 8px;
        border-radius: 999px;
        background: rgba(255,255,255,0.05);
        border: 1px solid rgba(255,255,255,0.08);
        color: rgba(255,255,255,0.75);
        line-height: 1.3;
    }

    /* ============ Actions 两个大按钮 ============ */
    .mobile-wechat-actions {
        display: grid;
        grid-template-columns: 1fr 1.3fr;
        gap: 0.6rem;
        position: relative;
        z-index: 1;
    }
    .mw-btn {
        display: inline-flex;
        align-items: center;
        justify-content: center;
        gap: 6px;
        padding: 0.75rem 0.7rem;
        border-radius: 12px;
        font-size: 0.88rem;
        font-weight: 700;
        border: none;
        cursor: pointer;
        transition: all 0.2s ease;
        line-height: 1.15;
    }
    .mw-btn:active { transform: scale(0.96); }

    /* 复制按钮：浅色描边 */
    .mw-btn-copy {
        background: rgba(255,255,255,0.08);
        border: 1px solid rgba(255,255,255,0.15);
        color: #fff;
    }
    .mw-btn-copy:hover,
    .mw-btn-copy:active {
        background: rgba(255,255,255,0.14);
        border-color: rgba(255,255,255,0.25);
    }

    /* 添加微信主按钮：微信绿渐变发光 */
    .mw-btn-add {
        background: linear-gradient(135deg,#07C160 0%,#06AD56 50%,#05994C 100%);
        color: #fff;
        position: relative;
        box-shadow:
            0 6px 18px rgba(7,193,96,0.45),
            0 0 0 1px rgba(255,255,255,0.08) inset;
    }
    .mw-btn-add:hover,
    .mw-btn-add:active {
        box-shadow:
            0 8px 22px rgba(7,193,96,0.55),
            0 0 0 1px rgba(255,255,255,0.14) inset;
        transform: translateY(-1px);
    }
    .mw-btn-add.btn-glow::after {
        content: "";
        position: absolute;
        inset: 0;
        border-radius: inherit;
        background: radial-gradient(circle at 50% 0%, rgba(255,255,255,0.35), transparent 60%);
        pointer-events: none;
    }
}

/* ---------- ≤400px 小屏进一步紧凑 ---------- */
@media (max-width: 400px) {
    .mobile-wechat-card {
        padding: 0.95rem 0.8rem 1rem;
        gap: 0.85rem;
    }
    .mobile-wechat-body {
        grid-template-columns: 100px 1fr;
        gap: 0.7rem;
    }
    .mobile-wechat-qr {
        width: 94px;
        height: 94px;
        padding: 6px;
    }
    .mobile-wechat-qr .wechat-qr-img {
        top: 6px; left: 6px;
        width: calc(100% - 12px);
        height: calc(100% - 12px);
    }
    .mobile-wechat-wid-id { font-size: 1.08rem; }
    .mobile-wechat-actions {
        grid-template-columns: 1fr;
    }
    .mw-btn { padding: 0.7rem 0.6rem; font-size: 0.85rem; }
}