/* ===== 基础重置与变量 ===== */
*, *::before, *::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --bg-primary: #f0f4ff;
    --bg-secondary: #e8eeff;
    --bg-card: #ffffff;
    --bg-card-hover: #f8f9ff;
    --cyan: #00b4d8;
    --purple: #9b5de5;
    --pink: #f15bb5;
    --blue: #4361ee;
    --orange: #ff9e00;
    --green: #00c853;
    --text: #3a3a5c;
    --text-dim: #7b7b9e;
    --text-bright: #1a1a2e;
    --border: rgba(100, 100, 200, 0.15);
    --glow-cyan: 0 0 20px rgba(0, 180, 216, 0.3);
    --glow-purple: 0 0 20px rgba(155, 93, 229, 0.3);
    --font-display: 'Orbitron', sans-serif;
    --font-body: 'Noto Sans SC', sans-serif;
    --radius: 16px;
    --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

html {
    scroll-behavior: smooth;
}

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

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

/* ===== 粒子画布 ===== */
#particles {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 0;
    pointer-events: none;
}

/* ===== 通用容器 ===== */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
}

/* ===== 导航栏 ===== */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    padding: 16px 0;
    transition: var(--transition);
    background: transparent;
}

.navbar.scrolled {
    background: rgba(240, 244, 255, 0.9);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--border);
    padding: 10px 0;
    box-shadow: 0 2px 20px rgba(0, 0, 0, 0.06);
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.logo {
    display: flex;
    align-items: center;
    gap: 10px;
    font-family: var(--font-display);
    font-size: 1.2rem;
    font-weight: 700;
    color: var(--text-bright);
    letter-spacing: 3px;
}

.logo-icon {
    color: var(--cyan);
    font-size: 1.6rem;
    text-shadow: var(--glow-cyan);
    animation: pulse-icon 3s ease-in-out infinite;
}

@keyframes pulse-icon {
    0%, 100% { opacity: 1; transform: scale(1); }
    50% { opacity: 0.7; transform: scale(1.1); }
}

.nav-links {
    display: flex;
    list-style: none;
    gap: 8px;
}

.nav-links a {
    padding: 8px 18px;
    font-size: 0.9rem;
    font-weight: 400;
    color: var(--text-dim);
    border-radius: 8px;
    transition: var(--transition);
    position: relative;
}

.nav-links a:hover,
.nav-links a.active {
    color: var(--cyan);
    background: rgba(0, 240, 255, 0.06);
}

.nav-links a.active::after {
    content: '';
    position: absolute;
    bottom: 2px;
    left: 50%;
    transform: translateX(-50%);
    width: 20px;
    height: 2px;
    background: var(--cyan);
    border-radius: 2px;
    box-shadow: var(--glow-cyan);
}

.nav-toggle {
    display: none;
    background: none;
    border: none;
    cursor: pointer;
    flex-direction: column;
    gap: 5px;
    padding: 5px;
}

.nav-toggle span {
    display: block;
    width: 24px;
    height: 2px;
    background: var(--text);
    border-radius: 2px;
    transition: var(--transition);
}

/* ===== Hero 主视觉 ===== */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    padding: 120px 24px 80px;
    z-index: 1;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 800px;
    height: 800px;
    background: radial-gradient(circle, rgba(0, 180, 216, 0.08) 0%, rgba(155, 93, 229, 0.05) 40%, transparent 70%);
    border-radius: 50%;
    pointer-events: none;
}

.hero-content {
    max-width: 800px;
}

.hero-badge {
    font-family: var(--font-display);
    font-size: 0.75rem;
    letter-spacing: 4px;
    color: var(--cyan);
    margin-bottom: 32px;
    opacity: 0.7;
}

.hero-title {
    font-family: var(--font-display);
    font-weight: 900;
    line-height: 1.1;
    margin-bottom: 24px;
}

.hero-title .line1 {
    display: block;
    font-size: clamp(2.5rem, 8vw, 5rem);
    color: var(--text-bright);
}

.hero-title .line2 {
    display: block;
    font-size: clamp(2.5rem, 8vw, 5rem);
    background: linear-gradient(135deg, var(--cyan), var(--purple));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-desc {
    font-size: 1.15rem;
    color: var(--text-dim);
    max-width: 560px;
    margin: 0 auto 40px;
    line-height: 1.8;
}

.hero-actions {
    display: flex;
    gap: 16px;
    justify-content: center;
    margin-bottom: 64px;
}

/* ===== 按钮 ===== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 14px 32px;
    font-family: var(--font-display);
    font-size: 0.85rem;
    font-weight: 700;
    letter-spacing: 1px;
    border-radius: 8px;
    border: none;
    cursor: pointer;
    transition: var(--transition);
    position: relative;
    overflow: hidden;
}

.btn-primary {
    background: linear-gradient(135deg, var(--purple), var(--pink));
    color: #fff;
    box-shadow: 0 4px 20px rgba(155, 93, 229, 0.3);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 30px rgba(241, 91, 181, 0.4);
}

.btn-outline {
    background: transparent;
    color: var(--text);
    border: 1px solid var(--border);
}

.btn-outline:hover {
    border-color: var(--cyan);
    color: var(--cyan);
    background: rgba(0, 240, 255, 0.04);
}

.btn-full {
    width: 100%;
}

.btn-glow {
    position: absolute;
    inset: 0;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.1), transparent);
    transform: translateX(-100%);
    transition: 0.5s;
}

.btn-full:hover .btn-glow {
    transform: translateX(100%);
}

/* ===== 统计数字 ===== */
.hero-stats {
    display: flex;
    justify-content: center;
    gap: 60px;
}

.stat {
    text-align: center;
}

.stat-num {
    font-family: var(--font-display);
    font-size: 2.4rem;
    font-weight: 900;
    color: var(--text-bright);
}

.stat-suffix {
    font-family: var(--font-display);
    font-size: 1.2rem;
    color: var(--cyan);
}

.stat-label {
    display: block;
    font-size: 0.8rem;
    color: var(--text-dim);
    margin-top: 4px;
}

/* ===== 滚动提示 ===== */
.hero-scroll {
    position: absolute;
    bottom: 32px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
    color: var(--text-dim);
    font-size: 0.75rem;
    letter-spacing: 2px;
}

.scroll-line {
    width: 1px;
    height: 40px;
    background: linear-gradient(to bottom, var(--cyan), transparent);
    animation: scroll-anim 2s ease-in-out infinite;
}

@keyframes scroll-anim {
    0%, 100% { opacity: 0.3; transform: scaleY(0.5); }
    50% { opacity: 1; transform: scaleY(1); }
}

/* ===== 通用区块标题 ===== */
.section-header {
    text-align: center;
    margin-bottom: 60px;
}

.section-tag {
    font-family: var(--font-display);
    font-size: 0.7rem;
    letter-spacing: 4px;
    color: var(--cyan);
    opacity: 0.7;
}

.section-title {
    font-family: var(--font-display);
    font-size: clamp(1.8rem, 4vw, 2.5rem);
    font-weight: 900;
    color: var(--text-bright);
    margin: 12px 0;
}

.section-desc {
    color: var(--text-dim);
    font-size: 1rem;
}

/* ===== 游戏区块 ===== */
.games-section {
    position: relative;
    z-index: 1;
    padding: 120px 0;
}

/* 筛选按钮 */
.game-filters {
    display: flex;
    justify-content: center;
    gap: 8px;
    margin-bottom: 48px;
    flex-wrap: wrap;
}

.filter-btn {
    padding: 8px 24px;
    font-family: var(--font-body);
    font-size: 0.85rem;
    background: transparent;
    color: var(--text-dim);
    border: 1px solid var(--border);
    border-radius: 24px;
    cursor: pointer;
    transition: var(--transition);
}

.filter-btn:hover,
.filter-btn.active {
    color: var(--cyan);
    border-color: var(--cyan);
    background: rgba(0, 240, 255, 0.06);
    box-shadow: var(--glow-cyan);
}

/* 游戏网格 */
.games-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(340px, 1fr));
    gap: 28px;
}

/* 游戏卡片 */
.game-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    overflow: hidden;
    transition: var(--transition);
    opacity: 0;
    transform: translateY(30px);
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.06);
}

.game-card.visible {
    opacity: 1;
    transform: translateY(0);
}

.game-card:hover {
    transform: translateY(-6px);
    border-color: rgba(0, 180, 216, 0.3);
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.1), 0 0 40px rgba(155, 93, 229, 0.08);
}

.game-img {
    position: relative;
    height: 220px;
    overflow: hidden;
}

.game-img-inner {
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg,
        hsl(var(--hue), 80%, 75%),
        hsl(var(--hue), 70%, 60%),
        hsl(calc(var(--hue) + 40), 70%, 65%));
    display: flex;
    align-items: center;
    justify-content: center;
    transition: transform 0.5s;
}

.game-card:hover .game-img-inner {
    transform: scale(1.05);
}

/* 游戏视觉效果 */
.game-visual {
    position: relative;
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
}

/* 星球效果 */
.planet {
    width: 80px;
    height: 80px;
    border-radius: 50%;
    background: radial-gradient(circle at 30% 30%,
        hsl(var(--hue), 80%, 70%),
        hsl(var(--hue), 60%, 50%),
        hsl(var(--hue), 40%, 35%));
    box-shadow: 0 0 40px hsla(var(--hue), 80%, 60%, 0.4),
                inset -10px -10px 20px rgba(0,0,0,0.08);
    animation: float 6s ease-in-out infinite;
}

.ring {
    position: absolute;
    width: 140px;
    height: 30px;
    border: 2px solid hsla(var(--hue), 70%, 60%, 0.4);
    border-radius: 50%;
    transform: rotateX(75deg) rotateZ(-15deg);
    animation: ring-spin 10s linear infinite;
}

/* 水晶效果 */
.crystal {
    width: 50px;
    height: 80px;
    background: linear-gradient(135deg,
        hsla(var(--hue), 80%, 60%, 0.8),
        hsla(var(--hue), 60%, 60%, 0.6));
    clip-path: polygon(50% 0%, 100% 35%, 80% 100%, 20% 100%, 0% 35%);
    animation: float 4s ease-in-out infinite;
    filter: drop-shadow(0 0 20px hsla(var(--hue), 80%, 50%, 0.5));
}

.crystal-glow {
    position: absolute;
    width: 120px;
    height: 120px;
    border-radius: 50%;
    background: radial-gradient(circle, hsla(var(--hue), 80%, 50%, 0.15), transparent 70%);
    animation: pulse 3s ease-in-out infinite;
}

/* 六边形网格 */
.hex-grid {
    width: 100%;
    height: 100%;
    background-image:
        linear-gradient(30deg, hsla(var(--hue), 60%, 60%, 0.15) 12%, transparent 12.5%),
        linear-gradient(150deg, hsla(var(--hue), 60%, 60%, 0.15) 12%, transparent 12.5%),
        linear-gradient(210deg, hsla(var(--hue), 60%, 60%, 0.15) 12%, transparent 12.5%),
        linear-gradient(330deg, hsla(var(--hue), 60%, 60%, 0.15) 12%, transparent 12.5%);
    background-size: 60px 100px;
    animation: hex-shift 20s linear infinite;
}

.data-stream {
    position: absolute;
    width: 2px;
    height: 100%;
    left: 50%;
    background: linear-gradient(to bottom, transparent, hsla(var(--hue), 80%, 50%, 0.6), transparent);
    animation: stream 3s ease-in-out infinite;
}

/* 星云效果 */
.nebula {
    width: 150px;
    height: 150px;
    border-radius: 50%;
    background: radial-gradient(ellipse,
        hsla(var(--hue), 80%, 50%, 0.2),
        hsla(calc(var(--hue) + 30), 60%, 30%, 0.1),
        transparent 70%);
    filter: blur(10px);
    animation: nebula-drift 8s ease-in-out infinite;
}

.ship {
    position: absolute;
    width: 0;
    height: 0;
    border-left: 8px solid transparent;
    border-right: 8px solid transparent;
    border-bottom: 20px solid hsla(var(--hue), 70%, 70%, 0.8);
    filter: drop-shadow(0 0 10px hsla(var(--hue), 70%, 60%, 0.6));
    animation: ship-fly 6s ease-in-out infinite;
}

/* 火焰核心 */
.fire-core {
    width: 60px;
    height: 60px;
    border-radius: 50%;
    background: radial-gradient(circle, #ffb347, #ff6b35, #ff4500);
    box-shadow: 0 0 40px rgba(255, 165, 0, 0.4), 0 0 80px rgba(255, 107, 53, 0.15);
    animation: fire-pulse 2s ease-in-out infinite;
}

.fire-ring {
    position: absolute;
    width: 100px;
    height: 100px;
    border: 2px solid rgba(255, 107, 53, 0.3);
    border-radius: 50%;
    animation: fire-ring-expand 2s ease-out infinite;
}

/* 虫洞效果 */
.wormhole {
    width: 100px;
    height: 100px;
    border-radius: 50%;
    background: conic-gradient(from 0deg,
        hsla(var(--hue), 80%, 50%, 0.5),
        transparent,
        hsla(calc(var(--hue) + 60), 80%, 50%, 0.5),
        transparent,
        hsla(var(--hue), 80%, 50%, 0.5));
    animation: wormhole-spin 4s linear infinite;
    filter: blur(2px);
}

.time-particles {
    position: absolute;
    width: 4px;
    height: 4px;
    background: hsla(var(--hue), 80%, 70%, 0.8);
    border-radius: 50%;
    box-shadow:
        30px -20px 0 hsla(var(--hue), 70%, 60%, 0.6),
        -25px 15px 0 hsla(var(--hue), 70%, 60%, 0.4),
        40px 25px 0 hsla(var(--hue), 70%, 60%, 0.5),
        -35px -30px 0 hsla(var(--hue), 70%, 60%, 0.3);
    animation: float 3s ease-in-out infinite;
}

@keyframes float {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-15px); }
}

@keyframes ring-spin {
    from { transform: rotateX(75deg) rotateZ(0deg); }
    to { transform: rotateX(75deg) rotateZ(360deg); }
}

@keyframes pulse {
    0%, 100% { transform: scale(1); opacity: 0.5; }
    50% { transform: scale(1.2); opacity: 1; }
}

@keyframes hex-shift {
    from { background-position: 0 0; }
    to { background-position: 60px 100px; }
}

@keyframes stream {
    0%, 100% { opacity: 0; transform: translateY(-100%); }
    50% { opacity: 1; transform: translateY(100%); }
}

@keyframes nebula-drift {
    0%, 100% { transform: translate(0, 0) scale(1); }
    33% { transform: translate(10px, -10px) scale(1.1); }
    66% { transform: translate(-10px, 5px) scale(0.95); }
}

@keyframes ship-fly {
    0%, 100% { transform: translate(0, 0) rotate(0); }
    25% { transform: translate(20px, -15px) rotate(5deg); }
    75% { transform: translate(-15px, 10px) rotate(-3deg); }
}

@keyframes fire-pulse {
    0%, 100% { transform: scale(1); }
    50% { transform: scale(1.15); }
}

@keyframes fire-ring-expand {
    0% { transform: scale(0.6); opacity: 1; }
    100% { transform: scale(1.8); opacity: 0; }
}

@keyframes wormhole-spin {
    from { transform: rotate(0deg); }
    to { transform: rotate(360deg); }
}

/* 游戏徽章 */
.game-overlay {
    position: absolute;
    top: 16px;
    right: 16px;
}

.game-badge {
    padding: 4px 14px;
    font-size: 0.7rem;
    font-weight: 700;
    letter-spacing: 1px;
    background: rgba(255, 45, 123, 0.9);
    color: white;
    border-radius: 20px;
}

.game-badge.new {
    background: rgba(0, 240, 255, 0.9);
    color: var(--bg-primary);
}

.game-badge.soon {
    background: rgba(180, 74, 255, 0.9);
}

/* 游戏信息 */
.game-info {
    padding: 24px;
}

.game-meta {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 12px;
}

.game-genre {
    font-size: 0.75rem;
    color: var(--cyan);
    letter-spacing: 1px;
}

.game-year {
    font-family: var(--font-display);
    font-size: 0.75rem;
    color: var(--text-dim);
}

.game-title {
    font-family: var(--font-display);
    font-size: 1.3rem;
    font-weight: 700;
    color: var(--text-bright);
    margin-bottom: 10px;
}

.game-desc {
    font-size: 0.88rem;
    color: var(--text-dim);
    line-height: 1.7;
    margin-bottom: 18px;
}

.game-footer {
    display: flex;
    align-items: center;
}

.store-buttons {
    display: flex;
    align-items: center;
    gap: 8px;
}

.store-badge {
    display: inline-block;
    transition: var(--transition);
}

.store-badge:hover {
    opacity: 0.8;
    transform: scale(1.05);
}

.store-badge img,
.store-badge svg {
    height: 35px;
    width: auto;
}

/* ===== 关于我们 ===== */
.about-section {
    position: relative;
    z-index: 1;
    padding: 120px 0;
    background: linear-gradient(180deg, transparent, rgba(0, 180, 216, 0.04), transparent);
}

.about-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 80px;
    align-items: center;
}

.about-content .section-tag,
.about-content .section-title {
    text-align: left;
}

.about-text {
    color: var(--text-dim);
    margin: 16px 0;
    line-height: 1.8;
}

.about-features {
    margin-top: 40px;
    display: flex;
    flex-direction: column;
    gap: 24px;
}

.feature {
    display: flex;
    gap: 16px;
    align-items: flex-start;
}

.feature-icon {
    font-size: 1.5rem;
    color: var(--cyan);
    text-shadow: var(--glow-cyan);
    flex-shrink: 0;
    width: 40px;
    text-align: center;
}

.feature h4 {
    font-family: var(--font-display);
    font-size: 0.9rem;
    color: var(--text-bright);
    margin-bottom: 4px;
}

.feature p {
    font-size: 0.85rem;
    color: var(--text-dim);
}

/* 全息投影效果 */
.about-visual {
    display: flex;
    align-items: center;
    justify-content: center;
}

.hologram {
    position: relative;
    width: 300px;
    height: 300px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.holo-ring {
    position: absolute;
    border-radius: 50%;
    border: 1px solid;
    animation: holo-spin linear infinite;
}

.ring1 {
    width: 200px;
    height: 200px;
    border-color: rgba(0, 180, 216, 0.4);
    animation-duration: 8s;
}

.ring2 {
    width: 250px;
    height: 250px;
    border-color: rgba(155, 93, 229, 0.35);
    animation-duration: 12s;
    animation-direction: reverse;
}

.ring3 {
    width: 290px;
    height: 290px;
    border-color: rgba(67, 97, 238, 0.25);
    animation-duration: 16s;
}

.holo-core {
    width: 100px;
    height: 100px;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(0, 180, 216, 0.12), transparent 70%);
    animation: pulse 4s ease-in-out infinite;
}

.holo-text {
    position: absolute;
    font-family: var(--font-display);
    font-size: 3rem;
    font-weight: 900;
    color: var(--cyan);
    text-shadow: var(--glow-cyan);
    opacity: 0.6;
}

@keyframes holo-spin {
    from { transform: rotate(0deg); }
    to { transform: rotate(360deg); }
}

/* ===== 新闻区块 ===== */
.news-section {
    position: relative;
    z-index: 1;
    padding: 120px 0;
}

.news-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 24px;
}

.news-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    overflow: hidden;
    transition: var(--transition);
}

.news-card:hover {
    border-color: rgba(0, 180, 216, 0.2);
    transform: translateY(-4px);
}

.news-card.featured {
    grid-column: 1 / -1;
    display: grid;
    grid-template-columns: 1fr 1fr;
}

.news-img {
    height: 200px;
    background: linear-gradient(135deg,
        hsl(var(--hue), 80%, 85%),
        hsl(var(--hue), 60%, 75%));
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
}

.news-card.featured .news-img {
    height: 100%;
}

.news-visual {
    position: relative;
}

.signal-wave {
    width: 60px;
    height: 60px;
    border: 2px solid hsla(var(--hue), 70%, 50%, 0.4);
    border-radius: 50%;
    animation: signal 2s ease-out infinite;
}

.signal-wave::before,
.signal-wave::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    border: 2px solid hsla(var(--hue), 70%, 50%, 0.2);
    border-radius: 50%;
}

.signal-wave::before {
    width: 90px;
    height: 90px;
    animation: signal 2s ease-out 0.4s infinite;
}

.signal-wave::after {
    width: 120px;
    height: 120px;
    animation: signal 2s ease-out 0.8s infinite;
}

@keyframes signal {
    0% { transform: translate(-50%, -50%) scale(0.8); opacity: 1; }
    100% { transform: translate(-50%, -50%) scale(1.5); opacity: 0; }
}

.news-content {
    padding: 28px;
}

.news-date {
    font-size: 0.75rem;
    color: var(--cyan);
    letter-spacing: 1px;
}

.news-content h3 {
    font-size: 1.1rem;
    color: var(--text-bright);
    margin: 10px 0;
    line-height: 1.5;
}

.news-content p {
    font-size: 0.88rem;
    color: var(--text-dim);
    line-height: 1.7;
}

.news-link {
    display: inline-block;
    margin-top: 16px;
    font-size: 0.85rem;
    color: var(--cyan);
    transition: var(--transition);
}

.news-link:hover {
    text-shadow: var(--glow-cyan);
}

/* ===== 联系我们 ===== */
.contact-section {
    position: relative;
    z-index: 1;
    padding: 120px 0;
    background: linear-gradient(180deg, transparent, rgba(180, 74, 255, 0.02), transparent);
}

.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 80px;
    align-items: start;
}

.contact-info .section-tag,
.contact-info .section-title {
    text-align: left;
}

.contact-desc {
    color: var(--text-dim);
    margin: 16px 0 32px;
    line-height: 1.8;
}

.contact-details {
    display: flex;
    flex-direction: column;
    gap: 24px;
    margin-bottom: 40px;
}

.contact-item {
    display: flex;
    gap: 16px;
    align-items: center;
}

.contact-icon {
    font-size: 1.3rem;
    color: var(--cyan);
    text-shadow: var(--glow-cyan);
    width: 40px;
    text-align: center;
}

.contact-item h4 {
    font-size: 0.8rem;
    color: var(--text-dim);
    margin-bottom: 2px;
}

.contact-item a,
.contact-item p {
    font-size: 0.95rem;
    color: var(--text-bright);
}

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

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

.social-btn {
    padding: 8px 18px;
    font-size: 0.8rem;
    border: 1px solid var(--border);
    border-radius: 24px;
    color: var(--text-dim);
    transition: var(--transition);
}

.social-btn:hover {
    border-color: var(--cyan);
    color: var(--cyan);
    box-shadow: var(--glow-cyan);
}

/* 联系表单 */
.contact-form {
    display: flex;
    flex-direction: column;
    gap: 24px;
}

.form-group {
    position: relative;
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 14px 0;
    font-family: var(--font-body);
    font-size: 0.95rem;
    background: transparent;
    border: none;
    border-bottom: 1px solid var(--border);
    color: var(--text);
    outline: none;
    transition: var(--transition);
}

.form-group select {
    cursor: pointer;
}

.form-group select option {
    background: var(--bg-card);
    color: var(--text);
}

.form-group textarea {
    resize: vertical;
    min-height: 100px;
}

.input-line {
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background: linear-gradient(90deg, var(--cyan), var(--purple));
    transition: width 0.4s;
}

.form-group input:focus ~ .input-line,
.form-group select:focus ~ .input-line,
.form-group textarea:focus ~ .input-line {
    width: 100%;
}

.form-group input::placeholder,
.form-group textarea::placeholder {
    color: var(--text-dim);
}

/* ===== 页脚 ===== */
.footer {
    position: relative;
    z-index: 1;
    border-top: 1px solid var(--border);
    padding: 60px 0 30px;
}

.footer-top {
    display: flex;
    justify-content: space-between;
    gap: 60px;
    margin-bottom: 48px;
}

.footer-brand {
    max-width: 300px;
}

.footer-brand .logo-icon,
.footer-brand .logo-text {
    font-family: var(--font-display);
    font-size: 1rem;
    letter-spacing: 3px;
}

.footer-brand .logo-icon {
    color: var(--cyan);
    text-shadow: var(--glow-cyan);
    margin-right: 8px;
}

.footer-brand .logo-text {
    color: var(--text-bright);
}

.footer-brand p {
    color: var(--text-dim);
    font-size: 0.85rem;
    margin-top: 12px;
}

.footer-links {
    display: flex;
    gap: 60px;
}

.footer-col {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.footer-col h4 {
    font-family: var(--font-display);
    font-size: 0.8rem;
    color: var(--text-bright);
    letter-spacing: 2px;
    margin-bottom: 8px;
}

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

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

.footer-bottom {
    display: flex;
    justify-content: space-between;
    padding-top: 24px;
    border-top: 1px solid var(--border);
    font-size: 0.8rem;
    color: var(--text-dim);
}

/* ===== 动画入场 ===== */
.fade-in {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.6s, transform 0.6s;
}

.fade-in.visible {
    opacity: 1;
    transform: translateY(0);
}

/* ===== 响应式 ===== */
@media (max-width: 900px) {
    .games-grid {
        grid-template-columns: 1fr;
    }

    .about-grid,
    .contact-grid {
        grid-template-columns: 1fr;
        gap: 40px;
    }

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

    .news-card.featured {
        grid-template-columns: 1fr;
    }

    .footer-top {
        flex-direction: column;
    }

    .footer-links {
        gap: 40px;
    }

    .hero-stats {
        gap: 30px;
    }

    .footer-bottom {
        flex-direction: column;
        gap: 8px;
        text-align: center;
    }
}

@media (max-width: 640px) {
    .nav-links {
        display: none;
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        flex-direction: column;
        background: rgba(240, 244, 255, 0.98);
        backdrop-filter: blur(20px);
        padding: 16px;
        border-bottom: 1px solid var(--border);
    }

    .nav-links.open {
        display: flex;
    }

    .nav-toggle {
        display: flex;
    }

    .hero-stats {
        flex-direction: column;
        gap: 20px;
    }

    .hero-actions {
        flex-direction: column;
        align-items: center;
    }

    .social-links {
        flex-wrap: wrap;
    }

    .about-visual {
        order: -1;
    }

    .hologram {
        width: 200px;
        height: 200px;
    }

    .ring1 { width: 140px; height: 140px; }
    .ring2 { width: 170px; height: 170px; }
    .ring3 { width: 195px; height: 195px; }
}