/* ============================================
   皇家黑金 · 高端豪华主题 Royal Obsidian
   Performance-optimized for mobile devices
   ============================================ */
@import url('https://fonts.googleapis.com/css2?family=Playfair+Display:wght@400;600;700;900&family=Plus+Jakarta+Sans:wght@300;400;500;600;700;800&display=swap');

:root {
    --bg-primary: #0a0e1a;
    --bg-secondary: #0d0a1a;
    --bg-card: rgba(20,25,45,0.85);
    --bg-card-hover: rgba(30,35,55,0.9);
    --gold: #ffd700;
    --gold-light: #ffe44d;
    --gold-dark: #b8960f;
    --gold-gradient: linear-gradient(135deg, #ffd700 0%, #ff8c00 40%, #ffd700 70%, #ffa500 100%);
    --gold-gradient-subtle: linear-gradient(135deg, rgba(255,215,0,0.12), rgba(255,140,0,0.06));
    --accent-blue: #4e6ef2;
    --accent-red: #e74c3c;
    --accent-green: #2ecc71;
    --text-primary: #f0ece4;
    --text-secondary: rgba(240,236,228,0.6);
    --text-muted: rgba(240,236,228,0.3);
    --border-glow: rgba(255,215,0,0.15);
    --border-glow-hover: rgba(255,215,0,0.3);
    --shadow-gold: rgba(255,215,0,0.1);
    --font-display: 'Playfair Display', 'Times New Roman', serif;
    --font-body: 'Plus Jakarta Sans', 'Microsoft YaHei', sans-serif;
    --radius-sm: 8px;
    --radius-md: 14px;
    --radius-lg: 20px;
    --radius-xl: 28px;
}

/* ====== 全局重置 ====== */
* { margin: 0; padding: 0; box-sizing: border-box; }

body {
    font-family: var(--font-body);
    background: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.7;
    min-height: 100vh;
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* ====== 动态背景（GPU加速） ====== */
.ambient-bg {
    position: fixed;
    top: 0; left: 0; right: 0; bottom: 0;
    z-index: 0;
    pointer-events: none;
    overflow: hidden;
    will-change: transform;
    transform: translateZ(0);
}
.ambient-bg .orb {
    position: absolute;
    border-radius: 50%;
    filter: blur(100px);
    opacity: 0.08;
    animation: orbFloat 20s ease-in-out infinite alternate;
    will-change: transform;
    transform: translateZ(0);
}
.ambient-bg .orb.o1 { width: 600px; height: 600px; background: #ffd700; top: -200px; left: -150px; }
.ambient-bg .orb.o2 { width: 500px; height: 500px; background: #ff4500; bottom: -200px; right: -150px; animation-delay: -7s; }
.ambient-bg .orb.o3 { width: 400px; height: 400px; background: #4e6ef2; top: 40%; left: 60%; animation-delay: -14s; }
@keyframes orbFloat {
    0% { transform: translate(0, 0) scale(1); }
    100% { transform: translate(80px, -60px) scale(1.15); }
}

/* 粒子（GPU加速） */
.particles {
    position: fixed;
    top: 0; left: 0; width: 100%; height: 100%;
    pointer-events: none;
    z-index: 0;
    overflow: hidden;
    will-change: transform;
    transform: translateZ(0);
}
.particle {
    position: absolute;
    width: 3px; height: 3px;
    background: rgba(255, 215, 0, 0.4);
    border-radius: 50%;
    animation: particleFloat linear infinite;
    will-change: transform;
    transform: translateZ(0);
}
/* 使用更轻量的粒子动画（GPU加速友好） */
@keyframes particleFloat {
    0% { transform: translateY(100vh) rotate(0deg); opacity: 0; }
    10% { opacity: 1; }
    90% { opacity: 0.6; }
    100% { transform: translateY(-10vh) rotate(720deg); opacity: 0; }
}

/* ====== 容器 ====== */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    position: relative;
    z-index: 1;
}

/* ====== 顶部导航（GPU加速） ====== */
.header {
    background: rgba(10, 14, 26, 0.92);
    backdrop-filter: blur(20px) saturate(1.3);
    -webkit-backdrop-filter: blur(20px) saturate(1.3);
    position: sticky;
    top: 0;
    z-index: 1000;
    padding: 8px 0;
    border-bottom: 1px solid var(--border-glow);
    box-shadow: 0 4px 40px rgba(0,0,0,0.5);
    will-change: transform;
    transform: translateZ(0);
}
.nav-bar {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 6px;
    max-width: 600px;
    margin: 0 auto;
}
.nav-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 10px 12px;
    border-radius: var(--radius-sm);
    background: rgba(255,255,255,0.03);
    transition: transform 0.4s cubic-bezier(0.34, 1.56, 0.64, 1), color 0.4s ease, border-color 0.4s ease, box-shadow 0.4s ease;
    text-decoration: none;
    color: var(--text-secondary);
    min-width: 0;
    height: 68px;
    border: 1px solid transparent;
    position: relative;
    overflow: hidden;
    will-change: transform;
}
.nav-item::before {
    content: '';
    position: absolute;
    inset: 0;
    background: var(--gold-gradient-subtle);
    opacity: 0;
    transition: opacity 0.4s ease;
}
.nav-item:hover {
    transform: translateY(-4px);
    color: var(--gold);
    border-color: var(--border-glow-hover);
    box-shadow: 0 8px 30px var(--shadow-gold);
}
.nav-item:hover::before { opacity: 1; }
.nav-item.active {
    background: var(--gold-gradient-subtle);
    border-color: var(--border-glow);
    color: var(--gold);
}
.nav-item .nav-icon {
    position: relative;
    z-index: 1;
    font-size: 22px;
    margin-bottom: 5px;
    color: inherit;
    transition: transform 0.3s ease;
}
.nav-item:hover .nav-icon { transform: scale(1.15); }
.nav-item .nav-text {
    position: relative;
    z-index: 1;
    font-size: 11px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}
.nav-item .nav-glow {
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 0;
    height: 2px;
    background: var(--gold-gradient);
    transition: width 0.4s ease;
    border-radius: 2px;
}
.nav-item:hover .nav-glow { width: 60%; }

/* ====== 横幅 ====== */
.banner-section {
    margin: 20px 0 0;
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: 0 12px 50px rgba(0,0,0,0.5);
    position: relative;
    content-visibility: auto;
    contain: layout style;
}
.banner-content {
    position: relative;
    width: 100%;
    min-height: 160px;
    background: linear-gradient(135deg, #0d0a1a 0%, #1a0a2e 30%, #0a1628 60%, #0d0a1a 100%);
    display: flex;
    flex-direction: row;
    align-items: center;
    justify-content: center;
    padding: 25px 30px;
    overflow: hidden;
}
.banner-content::before {
    content: '';
    position: absolute;
    inset: 0;
    background: radial-gradient(ellipse at 30% 50%, rgba(255,215,0,0.06), transparent 60%);
}
.banner-content .banner-glow {
    position: absolute;
    border-radius: 50%;
    filter: blur(80px);
    pointer-events: none;
    will-change: transform;
    transform: translateZ(0);
}
.banner-content .banner-glow.bg1 { width: 300px; height: 300px; background: #ffd700; top: -100px; left: 10%; opacity: 0.08; }
.banner-content .banner-glow.bg2 { width: 250px; height: 250px; background: #ff8c00; bottom: -80px; right: 15%; opacity: 0.06; }
.banner-icons {
    display: flex;
    gap: 18px;
    margin-right: 30px;
    position: relative;
    z-index: 1;
}
.banner-icons i {
    font-size: 2.8rem;
    color: var(--gold);
    text-shadow: 0 0 30px rgba(255,215,0,0.2);
    animation: bannerFloat 3s ease-in-out infinite;
    will-change: transform;
    transform: translateZ(0);
}
.banner-icons i:nth-child(2) { animation-delay: -0.8s; }
.banner-icons i:nth-child(3) { animation-delay: -1.6s; }
@keyframes bannerFloat {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-8px); }
}
.banner-text {
    position: relative;
    z-index: 1;
    text-align: center;
}
.banner-text h1 {
    font-family: var(--font-display);
    font-size: 2rem;
    font-weight: 700;
    background: var(--gold-gradient);
    background-size: 200% 200%;
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    animation: goldShine 4s ease-in-out infinite;
    margin-bottom: 4px;
}
.banner-text p {
    color: var(--text-secondary);
    font-size: 0.9rem;
    letter-spacing: 2px;
}
@keyframes goldShine {
    0%, 100% { background-position: 0% 50%; }
    50% { background-position: 100% 50%; }
}

/* ====== 页面标题 ====== */
.page-title {
    text-align: center;
    margin: 35px 0 10px;
}
.page-title h2 {
    font-family: var(--font-display);
    font-size: 2.2rem;
    font-weight: 700;
    background: var(--gold-gradient);
    background-size: 200% 200%;
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    animation: goldShine 5s ease-in-out infinite;
}
.page-title p {
    color: var(--text-secondary);
    font-size: 0.9rem;
    margin-top: 5px;
    letter-spacing: 3px;
}

/* ====== 测速卡片网格 ====== */
.speed-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(340px, 1fr));
    gap: 20px;
    margin: 25px 0;
}
.speed-card {
    background: var(--bg-card);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border: 1px solid rgba(255,255,255,0.06);
    border-radius: var(--radius-md);
    padding: 24px;
    transition: transform 0.5s cubic-bezier(0.34, 1.56, 0.64, 1), box-shadow 0.5s cubic-bezier(0.34, 1.56, 0.64, 1), border-color 0.5s ease, background 0.5s ease;
    position: relative;
    overflow: hidden;
    will-change: transform;
    transform: translateZ(0);
    content-visibility: auto;
    contain: layout style paint;
}
.speed-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 2px;
    background: var(--gold-gradient);
    opacity: 0;
    transition: opacity 0.4s ease;
}
.speed-card:hover {
    transform: translateY(-6px);
    border-color: var(--border-glow);
    box-shadow: 0 16px 50px rgba(0,0,0,0.4), 0 0 30px var(--shadow-gold);
    background: var(--bg-card-hover);
}
.speed-card:hover::before { opacity: 1; }
.speed-card .card-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 14px;
}
.speed-card .card-title {
    font-family: var(--font-display);
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--text-primary);
}
.speed-card .card-badge {
    font-size: 11px;
    padding: 3px 12px;
    border-radius: 20px;
    background: var(--gold-gradient-subtle);
    color: var(--gold);
    border: 1px solid rgba(255,215,0,0.15);
    font-weight: 600;
}
.speed-card .card-desc {
    font-size: 0.85rem;
    color: var(--text-secondary);
    margin-bottom: 16px;
    line-height: 1.5;
}
.speed-card .card-footer {
    display: flex;
    justify-content: space-between;
    align-items: center;
}
.speed-card .ping-display {
    display: flex;
    align-items: center;
    gap: 6px;
    font-size: 0.85rem;
    color: var(--text-muted);
}
.speed-card .ping-display .ping-value {
    font-family: var(--font-display);
    font-size: 1.3rem;
    font-weight: 700;
    color: var(--gold);
}
.speed-card .ping-display .ping-unit {
    font-size: 0.75rem;
    color: var(--text-muted);
}
.btn-open {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 10px 22px;
    background: var(--gold-gradient);
    border: none;
    border-radius: 50px;
    color: #1a0a2e;
    font-family: var(--font-body);
    font-size: 0.85rem;
    font-weight: 700;
    cursor: pointer;
    text-decoration: none;
    transition: all 0.4s cubic-bezier(0.34, 1.56, 0.64, 1);
    position: relative;
    overflow: hidden;
    will-change: transform;
}
.btn-open::before {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, rgba(255,255,255,0.2), transparent);
    opacity: 0;
    transition: opacity 0.3s ease;
}
.btn-open:hover {
    transform: translateY(-2px) scale(1.03);
    box-shadow: 0 8px 25px rgba(255,215,0,0.3);
}
.btn-open:hover::before { opacity: 1; }
.btn-open:active { transform: scale(0.97); }

/* ====== 页脚 ====== */
.footer {
    background: rgba(10,14,26,0.95);
    padding: 30px 0;
    border-top: 1px solid rgba(255,255,255,0.04);
    margin-top: 40px;
    position: relative;
    z-index: 1;
}
.footer-content {
    text-align: center;
}
.footer-logo {
    font-family: var(--font-display);
    font-size: 1.5rem;
    font-weight: 700;
    background: var(--gold-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 6px;
}
.footer-text {
    color: var(--text-muted);
    font-size: 0.8rem;
    line-height: 1.8;
}
.footer-text a {
    color: var(--gold);
    text-decoration: none;
    transition: color 0.3s;
}
.footer-text a:hover { color: var(--gold-light); }

/* ====== 浮动按钮组（GPU加速） ====== */
.fixed-bottom-group {
    position: fixed;
    bottom: 30px;
    right: 30px;
    z-index: 999;
    display: flex;
    flex-direction: column;
    gap: 10px;
    align-items: flex-end;
    will-change: transform;
    transform: translateZ(0);
}
.cs-button, .btn-refresh-inline {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 14px 24px;
    border-radius: 50px;
    text-decoration: none;
    font-family: var(--font-body);
    font-size: 14px;
    font-weight: 700;
    cursor: pointer;
    transition: all 0.4s cubic-bezier(0.34, 1.56, 0.64, 1);
    border: none;
    position: relative;
    overflow: hidden;
    animation: floatUpDown 3s ease-in-out infinite;
    will-change: transform;
    transform: translateZ(0);
}
.cs-button {
    background: var(--gold-gradient);
    color: #1a0a2e;
    box-shadow: 0 8px 30px rgba(255,215,0,0.25);
}
.cs-button:hover {
    transform: translateY(-3px) scale(1.05);
    box-shadow: 0 12px 40px rgba(255,215,0,0.35);
}
.btn-refresh-inline {
    background: rgba(255,255,255,0.08);
    color: var(--text-secondary);
    border: 1px solid rgba(255,255,255,0.1);
    animation-delay: -1.5s;
}
.btn-refresh-inline:hover {
    background: rgba(255,255,255,0.12);
    color: var(--gold);
    border-color: var(--border-glow);
}
.cs-button .cs-icon { font-size: 18px; }
.cs-tooltip {
    position: absolute;
    bottom: calc(100% + 10px);
    right: 0;
    background: rgba(0,0,0,0.9);
    color: #fff;
    padding: 6px 14px;
    border-radius: 8px;
    font-size: 12px;
    white-space: nowrap;
    opacity: 0;
    transform: translateY(5px);
    transition: all 0.3s ease;
    pointer-events: none;
}
.cs-button:hover .cs-tooltip {
    opacity: 1;
    transform: translateY(0);
}
@keyframes floatUpDown {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-8px); }
}
.cs-button:hover, .btn-refresh-inline:hover { animation-play-state: paused; }

/* ====== 淡入动画（GPU加速） ====== */
.fade-in {
    opacity: 0;
    transform: translateY(20px);
    animation: fadeInUp 0.8s cubic-bezier(0.34, 1.56, 0.64, 1) forwards;
    will-change: opacity, transform;
}
.fade-in-d1 { animation-delay: 0.1s; }
.fade-in-d2 { animation-delay: 0.2s; }
.fade-in-d3 { animation-delay: 0.3s; }
.fade-in-d4 { animation-delay: 0.4s; }
.fade-in-d5 { animation-delay: 0.5s; }
.fade-in-d6 { animation-delay: 0.6s; }
.fade-in-d7 { animation-delay: 0.7s; }
.fade-in-d8 { animation-delay: 0.8s; }
.fade-in-d9 { animation-delay: 0.9s; }
.fade-in-d10 { animation-delay: 1.0s; }
@keyframes fadeInUp {
    from { opacity: 0; transform: translateY(20px); }
    to { opacity: 1; transform: translateY(0); }
}

/* ====== 滚动条 ====== */
::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: var(--bg-primary); }
::-webkit-scrollbar-thumb { background: rgba(255,215,0,0.2); border-radius: 3px; }
::-webkit-scrollbar-thumb:hover { background: rgba(255,215,0,0.3); }

/* ============================================
   移动端性能优化
   ============================================ */

/* 平板及以下 - 深度性能优化 */
@media (max-width: 768px) {
    .nav-bar { gap: 4px; max-width: 420px; }
    .nav-item { height: 60px; padding: 6px 8px; }
    .nav-item .nav-icon { font-size: 18px; }
    .nav-item .nav-text { font-size: 10px; }
    .banner-content { flex-direction: column; min-height: 120px; padding: 20px; }
    .banner-icons { margin-right: 0; margin-bottom: 10px; }
    .banner-icons i { font-size: 2rem; }
    .banner-text h1 { font-size: 1.4rem; }
    .speed-grid { grid-template-columns: 1fr; gap: 8px; }
    .speed-card { padding: 8px; }
    .speed-card .card-header { margin-bottom: 3px; }
    .speed-card .card-title { font-size: 0.85rem; }
    .speed-card .card-badge { font-size: 8px; padding: 1px 7px; }
    .speed-card .card-desc { font-size: 0.72rem; margin-bottom: 4px; }
    .speed-card .card-footer { gap: 4px; }
    .speed-card .ping-display .ping-value { font-size: 0.95rem; }
    .speed-card .ping-display { gap: 3px; }
    .btn-open { padding: 4px 12px; font-size: 0.72rem; }
    .page-title h2 { font-size: 1.6rem; }
    .fixed-bottom-group { bottom: 15px; right: 15px; }
    .cs-button, .btn-refresh-inline { padding: 12px 18px; font-size: 13px; }

    /* === 性能优化：移除移动端高耗渲染特性 === */

    /* 移除 backdrop-filter（移动端GPU最大杀手） */
    .header { backdrop-filter: none; -webkit-backdrop-filter: none; }
    .speed-card { backdrop-filter: none; -webkit-backdrop-filter: none; }

    /* 完全移除粒子系统（大量DOM操作） */
    .particles { display: none; }

    /* 大幅降低光晕模糊强度 */
    .ambient-bg .orb { filter: blur(30px); opacity: 0.03; }
    .ambient-bg .orb.o1 { width: 200px; height: 200px; top: -80px; left: -60px; }
    .ambient-bg .orb.o2 { width: 180px; height: 180px; bottom: -80px; right: -60px; }
    .ambient-bg .orb.o3 { display: none; }
    .banner-content .banner-glow { filter: blur(25px); }
    .banner-content .banner-glow.bg1 { width: 120px; height: 120px; }
    .banner-content .banner-glow.bg2 { display: none; }

    /* 禁用所有非必要动画 */
    .banner-icons i { animation: none; }
    .cs-button, .btn-refresh-inline { animation: none; }
    .banner-text h1 { animation: none; background-position: 0% 50%; }
    .page-title h2 { animation: none; background-position: 0% 50%; }

    /* 简化光晕浮动动画 */
    @keyframes orbFloat {
        0% { transform: translate(0, 0) scale(1); }
        100% { transform: translate(20px, -15px) scale(1.04); }
    }

    /* 减少卡片hover效果（移动端无hover） */
    .speed-card:hover { transform: none; }
    .nav-item:hover { transform: none; }
    .nav-item:hover .nav-icon { transform: none; }
    .nav-item:hover .nav-glow { width: 0; }
    .btn-open:hover { transform: none; }
    .btn-open:hover::before { opacity: 0; }
}

/* 手机端极致优化 - 最低性能开销 */
@media (max-width: 480px) {
    .nav-bar { gap: 3px; max-width: 100%; }
    .nav-item { height: 54px; padding: 4px 6px; }
    .nav-item .nav-icon { font-size: 16px; margin-bottom: 3px; }
    .nav-item .nav-text { font-size: 9px; }
    .speed-card { padding: 6px; }
    .speed-card .card-header { margin-bottom: 2px; }
    .speed-card .card-title { font-size: 0.78rem; }
    .speed-card .card-badge { font-size: 7px; padding: 0px 5px; }
    .speed-card .card-desc { font-size: 0.65rem; margin-bottom: 3px; }
    .speed-card .card-footer { flex-direction: row; gap: 3px; }
    .speed-card .ping-display { gap: 2px; }
    .speed-card .ping-display .ping-value { font-size: 0.85rem; }
    .btn-open { padding: 3px 10px; font-size: 0.65rem; }

    /* 移除所有 GPU 层提升（移动端显存有限） */
    .header { will-change: auto; transform: none; }
    .speed-card { will-change: auto; transform: none; }
    .nav-item { will-change: auto; }
    .ambient-bg { will-change: auto; transform: none; }
    .ambient-bg .orb { will-change: auto; }
    .banner-content .banner-glow { will-change: auto; }
    .fixed-bottom-group { will-change: auto; transform: none; }
    .cs-button, .btn-refresh-inline { will-change: auto; }
    .fade-in { will-change: auto; }

    /* 进一步降低光晕 */
    .ambient-bg .orb { filter: blur(20px); opacity: 0.02; }
    .ambient-bg .orb.o2 { display: none; }
    .ambient-bg .orb.o1 { width: 150px; height: 150px; }
}

/* ====== 触屏设备优化（无hover设备） ====== */
@media (hover: none) and (pointer: coarse) {
    .speed-card:hover { transform: none; box-shadow: none; }
    .speed-card:hover::before { opacity: 0; }
    .nav-item:hover { transform: none; box-shadow: none; }
    .nav-item:hover::before { opacity: 0; }
    .nav-item:hover .nav-icon { transform: none; }
    .nav-item:hover .nav-glow { width: 0; }
    .btn-open:hover { transform: none; box-shadow: none; }
    .btn-open:hover::before { opacity: 0; }
    .cs-button:hover { transform: none; box-shadow: 0 8px 30px rgba(255,215,0,0.25); }
    .btn-refresh-inline:hover { transform: none; }

    /* 触屏设备保持active状态 */
    .nav-item:active { background: var(--gold-gradient-subtle); border-color: var(--border-glow); }
    .speed-card:active { transform: scale(0.98); }
    .btn-open:active { transform: scale(0.97); }
    .cs-button:active { transform: scale(0.97); }
}

/* ====== 省电模式检测 ====== */
@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.001ms !important;
        animation-iteration-count: 1 !important;
        animation-delay: 0ms !important;
        transition-duration: 0.001ms !important;
    }
    .fade-in {
        opacity: 1;
        transform: none;
        animation: none;
    }
    .particle { display: none; }
    .ambient-bg .orb { animation: none; }
    .banner-icons i { animation: none; }
    .cs-button, .btn-refresh-inline { animation: none; }
    .banner-text h1 { animation: none; }
    .page-title h2 { animation: none; }
}

/* ====== 省流量模式（低端设备极致优化） ====== */
@media (prefers-reduced-data: reduce) {
    .ambient-bg { display: none; }
    .particles { display: none; }
    .banner-content .banner-glow { display: none; }
    .banner-icons i { animation: none; }
    .cs-button, .btn-refresh-inline { animation: none; }
    .banner-text h1 { animation: none; background-position: 0% 50%; }
    .page-title h2 { animation: none; background-position: 0% 50%; }
    .header { backdrop-filter: none; -webkit-backdrop-filter: none; }
    .speed-card { backdrop-filter: none; -webkit-backdrop-filter: none; }
    .speed-card { will-change: auto; transform: none; }
    .nav-item { will-change: auto; }
    .banner-section { content-visibility: visible; }
}