/* roulang page: index */
:root {
    --bg-deep: #0A2E1C;
    --bg-forest: #123E25;
    --bg-darker: #062315;
    --accent-gold: #FFD700;
    --accent-red: #E53935;
    --text-white: #FFFFFF;
    --text-pale: #D1F2EB;
    --text-muted: #9FB8AE;
    --border-gold: rgba(255, 215, 0, .35);
    --border-soft: rgba(255,255,255,.1);
    --radius-sm: 10px;
    --radius-md: 16px;
    --radius-lg: 22px;
    --shadow-card: 0 12px 32px rgba(0,0,0,.25);
    --shadow-gold: 0 6px 20px rgba(255,215,0,.18);
    --container: 1180px;
    --space-xs: .5rem;
    --space-sm: 1rem;
    --space-md: 1.8rem;
    --space-lg: 3rem;
    --space-xl: 4.5rem;
    --font-base: 'Be Vietnam Pro', system-ui, -apple-system, 'Segoe UI', Roboto, 'Helvetica Neue', sans-serif;
    --transition: .25s ease;
}
*,
*::before,
*::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}
html {
    scroll-behavior: smooth;
    -webkit-text-size-adjust: 100%;
}
body {
    font-family: var(--font-base);
    font-size: 16px;
    line-height: 1.6;
    background: var(--bg-deep);
    color: var(--text-white);
    min-height: 100vh;
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}
img {
    max-width: 100%;
    height: auto;
    display: block;
}
a {
    color: var(--accent-gold);
    text-decoration: none;
    transition: color var(--transition);
}
a:hover {
    color: #FFED8A;
}
a:focus-visible,
button:focus-visible,
input:focus-visible,
label:focus-visible {
    outline: 3px solid rgba(255, 215, 0, .65);
    outline-offset: 2px;
    border-radius: 4px;
}
button,
input {
    font-family: inherit;
    border: none;
    background: none;
    color: inherit;
    cursor: pointer;
}
.container {
    width: 100%;
    max-width: var(--container);
    margin: 0 auto;
    padding: 0 clamp(16px, 2.4vw, 28px);
}
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    font-weight: 700;
    font-size: .95rem;
    letter-spacing: .02em;
    border-radius: 50px;
    padding: 12px 28px;
    line-height: 1.2;
    transition: all var(--transition);
    cursor: pointer;
    text-align: center;
    min-height: 46px;
    white-space: nowrap;
}
.btn-primary {
    background: linear-gradient(135deg, #FFD700 0%, #FFB800 55%, #E0A000 100%);
    color: #0A2E1C;
    box-shadow: 0 8px 24px rgba(255, 215, 0, .28);
}
.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 12px 32px rgba(255, 215, 0, .4);
    color: #0A2E1C;
}
.btn-primary:active {
    transform: translateY(0) scale(.98);
    box-shadow: 0 6px 16px rgba(255, 215, 0, .25);
}
.btn-ghost {
    background: transparent;
    color: var(--text-white);
    border: 1px solid var(--border-soft);
}
.btn-ghost:hover {
    border-color: var(--accent-gold);
    background: rgba(255, 215, 0, .1);
    color: var(--accent-gold);
}
.btn-red {
    background: linear-gradient(135deg, #E53935, #B71C1C);
    color: #fff;
    box-shadow: 0 8px 24px rgba(229, 57, 53, .25);
}
.btn-red:hover {
    transform: translateY(-2px);
    box-shadow: 0 12px 32px rgba(229, 57, 53, .35);
}
.btn-sm {
    padding: 9px 18px;
    min-height: 38px;
    font-size: .85rem;
    border-radius: 30px;
}
.btn-lg {
    padding: 15px 34px;
    min-height: 54px;
    font-size: 1.02rem;
    border-radius: 60px;
}
/* Header / Nav */
.site-header {
    position: sticky;
    top: 0;
    z-index: 100;
    background: rgba(10, 46, 28, .92);
    backdrop-filter: blur(18px);
    -webkit-backdrop-filter: blur(18px);
    border-bottom: 1px solid var(--border-soft);
    box-shadow: 0 4px 20px rgba(0,0,0,.18);
}
.nav-wrap {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--space-sm);
    min-height: 70px;
}
.nav-logo {
    display: flex;
    align-items: center;
    gap: 10px;
    font-weight: 800;
    font-size: 1.15rem;
    color: var(--text-white);
    letter-spacing: .01em;
    white-space: nowrap;
}
.nav-logo .logo-icon {
    width: 40px;
    height: 40px;
    background: linear-gradient(135deg, #FFD700, #FFB800);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    color: #0A2E1C;
    font-size: 1.25rem;
    box-shadow: 0 4px 14px rgba(255, 215, 0, .35);
}
.nav-menu {
    display: flex;
    align-items: center;
    gap: clamp(10px, 1.7vw, 26px);
    list-style: none;
}
.nav-menu a {
    color: var(--text-pale);
    font-weight: 500;
    font-size: .93rem;
    padding: 8px 4px;
    position: relative;
    white-space: nowrap;
}
.nav-menu a::after {
    content: "";
    position: absolute;
    left: 0;
    bottom: 0;
    width: 0;
    height: 2px;
    background: var(--accent-gold);
    transition: width var(--transition);
    border-radius: 2px;
}
.nav-menu a:hover::after,
.nav-menu a.active::after {
    width: 100%;
}
.nav-menu a.active {
    color: var(--accent-gold);
}
.nav-actions {
    display: flex;
    align-items: center;
    gap: 10px;
}
.nav-login {
    color: var(--text-white);
    font-weight: 600;
    font-size: .88rem;
    padding: 8px 12px;
    border-radius: 30px;
    transition: background var(--transition);
    white-space: nowrap;
}
.nav-login:hover {
    background: rgba(255, 255, 255, .08);
    color: #fff;
}
.nav-toggle {
    display: none;
}
.nav-toggle-label {
    display: none;
    flex-direction: column;
    gap: 5px;
    cursor: pointer;
    padding: 8px;
    border-radius: 8px;
    transition: background var(--transition);
}
.nav-toggle-label:hover {
    background: rgba(255, 255, 255, .08);
}
.nav-toggle-label span {
    display: block;
    width: 24px;
    height: 2px;
    background: var(--text-white);
    border-radius: 2px;
    transition: all .3s ease;
}
/* Hero */
.hero {
    position: relative;
    padding: clamp(50px, 7vw, 90px) 0 clamp(60px, 8vw, 110px);
    background: url('/assets/images/backpic/back-1.jpg') center center / cover no-repeat;
    background-color: var(--bg-darker);
    isolation: isolate;
    overflow: hidden;
}
.hero::before {
    content: "";
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, rgba(10,46,28,.92) 0%, rgba(10,46,28,.62) 45%, rgba(6,35,21,.78) 100%);
    z-index: -1;
}
.hero-inner {
    display: grid;
    grid-template-columns: 1.15fr .85fr;
    gap: clamp(28px, 4vw, 56px);
    align-items: center;
}
.hero-artist {
    display: flex;
    flex-direction: column;
    gap: 22px;
    align-items: flex-start;
}
.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: rgba(255,215,0,.12);
    border: 1px solid var(--border-gold);
    color: var(--accent-gold);
    font-weight: 600;
    font-size: .82rem;
    padding: 8px 16px;
    border-radius: 40px;
}
.hero-title {
    font-size: clamp(1.85rem, 4.2vw, 2.9rem);
    font-weight: 800;
    line-height: 1.18;
    letter-spacing: -.02em;
    color: #fff;
}
.hero-title .gold {
    color: var(--accent-gold);
}
.hero-sub {
    font-size: clamp(1rem, 1.5vw, 1.15rem);
    line-height: 1.65;
    color: var(--text-pale);
    max-width: 580px;
}
.hero-stats {
    display: flex;
    flex-wrap: wrap;
    gap: clamp(14px, 2vw, 28px);
    margin-top: 6px;
}
.hero-stat {
    display: flex;
    flex-direction: column;
    gap: 4px;
    background: rgba(255, 255, 255, .06);
    border-radius: var(--radius-sm);
    padding: 12px 18px;
    border: 1px solid var(--border-soft);
    min-width: 110px;
}
.hero-stat strong {
    font-size: 1.45rem;
    font-weight: 800;
    color: var(--accent-gold);
    line-height: 1.1;
}
.hero-stat span {
    font-size: .83rem;
    color: var(--text-muted);
    letter-spacing: .03em;
}
.hero-buttons {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    margin-top: 8px;
}
.hero-panel {
    background: rgba(0,0,0,.3);
    border: 1px solid var(--border-soft);
    border-radius: var(--radius-lg);
    padding: clamp(18px, 2.5vw, 28px);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    display: flex;
    flex-direction: column;
    gap: 18px;
}
.hero-panel-header {
    display: flex;
    align-items: center;
    gap: 14px;
}
.hero-avatar {
    width: 68px;
    height: 68px;
    border-radius: 50%;
    background: linear-gradient(135deg, #FFD700, #FF6D00);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.8rem;
    color: #0A2E1C;
    box-shadow: 0 8px 20px rgba(255, 215, 0, .32);
    flex-shrink: 0;
}
.hero-panel-title {
    font-size: 1.22rem;
    font-weight: 700;
    line-height: 1.3;
}
.hero-panel-sub {
    font-size: .85rem;
    color: var(--text-muted);
}
.hero-panel-follow {
    display: flex;
    gap: 10px;
    align-items: center;
    flex-wrap: wrap;
}
.hero-panel-note {
    font-size: .85rem;
    color: var(--text-pale);
    line-height: 1.55;
    border-top: 1px solid var(--border-soft);
    padding-top: 16px;
}
/* Section base */
.section {
    padding: clamp(48px, 6vw, 80px) 0;
}
.section-header {
    margin-bottom: 32px;
    max-width: 760px;
}
.section-label {
    display: inline-block;
    font-size: .78rem;
    font-weight: 700;
    letter-spacing: .08em;
    text-transform: uppercase;
    color: var(--accent-gold);
    margin-bottom: 8px;
}
.section-title {
    font-size: clamp(1.45rem, 2.8vw, 2.05rem);
    font-weight: 800;
    line-height: 1.25;
    letter-spacing: -.01em;
    margin-bottom: 10px;
}
.section-desc {
    font-size: .98rem;
    line-height: 1.65;
    color: var(--text-muted);
    max-width: 640px;
}
/* Game cards grid */
.game-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 22px;
}
.game-card {
    background: rgba(18, 62, 37, .75);
    border: 1px solid var(--border-gold);
    border-radius: var(--radius-md);
    overflow: hidden;
    transition: transform .28s ease, box-shadow .28s ease, border-color .28s ease;
    box-shadow: var(--shadow-card);
    position: relative;
    display: flex;
    flex-direction: column;
}
.game-card:hover {
    transform: translateY(-5px);
    border-color: rgba(255, 215, 0, .65);
    box-shadow: 0 16px 36px rgba(0,0,0,.35), 0 4px 18px rgba(255,215,0,.2);
}
.game-card-img {
    aspect-ratio: 16/10;
    object-fit: cover;
    width: 100%;
}
.game-card-tag {
    position: absolute;
    top: 14px;
    left: 14px;
    background: var(--accent-red);
    color: #fff;
    font-size: .72rem;
    font-weight: 700;
    letter-spacing: .04em;
    text-transform: uppercase;
    padding: 5px 12px;
    border-radius: 30px;
    box-shadow: 0 6px 12px rgba(229,57,53,.35);
}
.game-card-body {
    padding: 18px 18px 20px;
    display: flex;
    flex-direction: column;
    gap: 10px;
    flex: 1;
}
.game-card-title {
    font-size: 1.12rem;
    font-weight: 700;
    line-height: 1.3;
}
.game-card-desc {
    font-size: .9rem;
    color: var(--text-muted);
    line-height: 1.55;
    flex: 1;
}
.game-card-meta {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 10px;
    flex-wrap: wrap;
}
.game-rating {
    display: flex;
    align-items: center;
    gap: 6px;
    color: var(--accent-gold);
    font-weight: 700;
    font-size: .87rem;
}
.game-size {
    font-size: .8rem;
    color: var(--text-muted);
    background: rgba(255,255,255,.06);
    padding: 5px 11px;
    border-radius: 20px;
}
/* Rules/standards */
.rules-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 20px;
}
.rule-item {
    display: flex;
    gap: 16px;
    align-items: flex-start;
    background: rgba(18, 62, 37, .55);
    border: 1px solid var(--border-soft);
    border-radius: var(--radius-sm);
    padding: 20px;
    transition: border-color var(--transition), background var(--transition);
}
.rule-item:hover {
    border-color: rgba(255, 215, 0, .3);
    background: rgba(18, 62, 37, .8);
}
.rule-icon {
    width: 46px;
    height: 46px;
    border-radius: 50%;
    background: rgba(255,215,0,.12);
    color: var(--accent-gold);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.2rem;
    flex-shrink: 0;
}
.rule-content h3 {
    font-size: 1.02rem;
    font-weight: 700;
    margin-bottom: 6px;
}
.rule-content p {
    font-size: .89rem;
    color: var(--text-muted);
    line-height: 1.55;
}
/* News list */
.news-layout {
    display: grid;
    grid-template-columns: 1.25fr .75fr;
    gap: 28px;
    align-items: start;
}
.news-list {
    display: flex;
    flex-direction: column;
    gap: 12px;
}
.news-item {
    background: rgba(18, 62, 37, .5);
    border: 1px solid var(--border-soft);
    border-radius: var(--radius-sm);
    padding: 16px 18px;
    transition: border-color var(--transition), background var(--transition);
}
.news-item:hover {
    border-color: rgba(255, 215, 0, .3);
    background: rgba(18, 62, 37, .78);
}
.news-item a {
    display: flex;
    flex-direction: column;
    gap: 5px;
    color: var(--text-white);
}
.news-item-title {
    font-weight: 700;
    font-size: 1rem;
    line-height: 1.4;
    color: #fff;
}
.news-item:hover .news-item-title {
    color: var(--accent-gold);
}
.news-item-desc {
    font-size: .86rem;
    color: var(--text-muted);
    line-height: 1.5;
}
.news-item-meta {
    display: flex;
    gap: 14px;
    font-size: .78rem;
    color: var(--text-muted);
    align-items: center;
    flex-wrap: wrap;
}
.news-side {
    background: rgba(18, 62, 37, .45);
    border: 1px solid var(--border-soft);
    border-radius: var(--radius-md);
    padding: 22px;
    display: flex;
    flex-direction: column;
    gap: 14px;
}
.news-side h3 {
    font-size: 1.05rem;
    font-weight: 700;
    color: var(--accent-gold);
}
.news-side p {
    font-size: .88rem;
    color: var(--text-muted);
    line-height: 1.55;
}
.news-empty {
    background: rgba(18, 62, 37, .5);
    border: 1px dashed var(--border-soft);
    border-radius: var(--radius-sm);
    padding: 22px;
    color: var(--text-muted);
    text-align: center;
    font-weight: 500;
}
/* Related recommendations */
.related-track {
    display: flex;
    overflow-x: auto;
    gap: 18px;
    padding-bottom: 14px;
    scroll-snap-type: x mandatory;
    -webkit-overflow-scrolling: touch;
}
.related-card {
    flex: 0 0 auto;
    width: 260px;
    scroll-snap-align: start;
    background: rgba(18, 62, 37, .65);
    border: 1px solid var(--border-soft);
    border-radius: var(--radius-md);
    overflow: hidden;
    transition: transform .28s ease, border-color .28s ease;
}
.related-card:hover {
    transform: translateY(-4px);
    border-color: rgba(255, 215, 0, .4);
}
.related-card img {
    aspect-ratio: 16/9;
    object-fit: cover;
    width: 100%;
}
.related-card-body {
    padding: 15px 16px 16px;
    display: flex;
    flex-direction: column;
    gap: 8px;
}
.related-card-body h3 {
    font-size: .98rem;
    font-weight: 700;
    line-height: 1.35;
}
.related-card-body p {
    font-size: .82rem;
    color: var(--text-muted);
    line-height: 1.45;
}
/* Compare table */
.compare-table {
    width: 100%;
    border-collapse: collapse;
    background: rgba(18, 62, 37, .55);
    border-radius: var(--radius-md);
    overflow: hidden;
    border: 1px solid var(--border-soft);
}
.compare-table th,
.compare-table td {
    padding: 14px 18px;
    text-align: left;
    font-size: .9rem;
    border-bottom: 1px solid var(--border-soft);
}
.compare-table th {
    background: rgba(255, 215, 0, .1);
    color: var(--accent-gold);
    font-weight: 700;
    letter-spacing: .02em;
}
.compare-table td {
    color: var(--text-pale);
}
.compare-table tr:last-child td {
    border-bottom: none;
}
.compare-highlight {
    color: var(--accent-gold);
    font-weight: 600;
}
.table-responsive {
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
    border-radius: var(--radius-md);
}
/* FAQ */
.faq-list {
    display: flex;
    flex-direction: column;
    gap: 12px;
    max-width: 800px;
}
.faq-item {
    background: rgba(18, 62, 37, .55);
    border: 1px solid var(--border-soft);
    border-radius: var(--radius-sm);
    padding: 0;
    overflow: hidden;
    transition: border-color var(--transition);
}
.faq-item:hover {
    border-color: rgba(255, 215, 0, .3);
}
.faq-question {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    padding: 16px 18px;
    cursor: pointer;
    font-weight: 700;
    font-size: .98rem;
    color: #fff;
    width: 100%;
    text-align: left;
    transition: background var(--transition);
}
.faq-question:hover {
    background: rgba(255, 255, 255, .04);
}
.faq-question .faq-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 28px;
    height: 28px;
    border-radius: 50%;
    background: rgba(255, 215, 0, .15);
    color: var(--accent-gold);
    font-size: 1.1rem;
    flex-shrink: 0;
    transition: transform .3s ease;
}
.faq-answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height .35s ease, padding .3s ease;
    color: var(--text-muted);
    font-size: .9rem;
    line-height: 1.6;
    padding: 0 18px;
}
.faq-item.open .faq-answer {
    max-height: 260px;
    padding: 0 18px 18px;
}
.faq-item.open .faq-icon {
    transform: rotate(45deg);
}
/* CTA */
.cta-section {
    background: url('/assets/images/backpic/back-2.jpg') center center / cover no-repeat;
    background-color: var(--bg-darker);
    position: relative;
    isolation: isolate;
    padding: clamp(50px, 7vw, 80px) 0;
    text-align: center;
}
.cta-section::before {
    content: "";
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, rgba(10,46,28,.92), rgba(6,35,21,.85));
    z-index: -1;
}
.cta-inner {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 18px;
    max-width: 720px;
    margin: 0 auto;
}
.cta-inner h2 {
    font-size: clamp(1.5rem, 2.8vw, 2.1rem);
    font-weight: 800;
    line-height: 1.25;
}
.cta-inner p {
    font-size: .98rem;
    color: var(--text-pale);
    line-height: 1.65;
    max-width: 560px;
}
/* Footer */
.site-footer {
    background: #052015;
    border-top: 1px solid var(--border-soft);
    padding: 48px 0 26px;
}
.footer-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 28px;
    margin-bottom: 36px;
}
.footer-brand {
    display: flex;
    flex-direction: column;
    gap: 14px;
}
.footer-brand .nav-logo {
    font-size: 1.05rem;
}
.footer-brand p {
    font-size: .87rem;
    color: var(--text-muted);
    line-height: 1.55;
    max-width: 300px;
}
.footer-col h4 {
    font-size: .9rem;
    font-weight: 700;
    letter-spacing: .04em;
    text-transform: uppercase;
    color: var(--accent-gold);
    margin-bottom: 14px;
}
.footer-col a {
    display: block;
    color: var(--text-muted);
    font-size: .88rem;
    padding: 5px 0;
    transition: color var(--transition);
}
.footer-col a:hover {
    color: var(--accent-gold);
}
.footer-bottom {
    border-top: 1px solid var(--border-soft);
    padding-top: 22px;
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    align-items: center;
    justify-content: space-between;
    font-size: .82rem;
    color: var(--text-muted);
}
.footer-bottom a {
    color: var(--text-muted);
    transition: color var(--transition);
}
.footer-bottom a:hover {
    color: var(--accent-gold);
}
/* FAB */
.fab {
    position: fixed;
    left: 16px;
    bottom: 96px;
    z-index: 90;
    width: 56px;
    height: 56px;
    border-radius: 50%;
    background: linear-gradient(165deg, #0A2E1C, #062315);
    border: 2px solid var(--accent-gold);
    box-shadow: 0 4px 20px rgba(255, 215, 0, .3);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--accent-gold);
    font-size: 1.35rem;
    cursor: pointer;
    opacity: .72;
    transition: all .3s ease;
    animation: fabFloat 3s ease-in-out infinite;
    position: fixed;
}
.fab:hover {
    opacity: 1;
    transform: scale(1.1);
    box-shadow: 0 6px 28px rgba(255, 215, 0, .48);
    animation-play-state: paused;
}
.fab:active {
    transform: scale(.95) translateY(2px);
}
.fab-dot {
    position: absolute;
    top: -2px;
    right: -2px;
    width: 14px;
    height: 14px;
    border-radius: 50%;
    background: #E53935;
    border: 2px solid #fff;
    animation: fabPulse 1.8s ease infinite;
}
@keyframes fabFloat {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-6px); }
}
@keyframes fabPulse {
    0%, 100% { box-shadow: 0 0 0 0 rgba(229, 57, 53, .6); }
    50% { box-shadow: 0 0 0 8px rgba(229, 57, 53, 0); }
}
/* Responsive */
@media (max-width: 1024px) {
    .hero-inner {
        grid-template-columns: 1fr;
    }
    .hero-panel {
        max-width: 100%;
    }
    .news-layout {
        grid-template-columns: 1fr;
    }
}
@media (max-width: 768px) {
    .nav-wrap {
        flex-wrap: wrap;
        min-height: 62px;
        padding: 10px 0;
    }
    .nav-menu {
        display: none;
        flex-direction: column;
        width: 100%;
        gap: 2px;
        padding: 10px 0 4px;
        background: rgba(10, 46, 28, .98);
        border-top: 1px solid var(--border-soft);
    }
    .nav-menu a {
        padding: 12px 4px;
        font-size: .98rem;
    }
    .nav-menu a::after {
        display: none;
    }
    .nav-toggle {
        display: none;
    }
    .nav-toggle-label {
        display: flex;
        order: 3;
    }
    .nav-menu.open {
        display: flex;
    }
    .nav-toggle:checked ~ .nav-menu {
        display: flex;
    }
    .nav-actions {
        order: 2;
        margin-left: auto;
    }
    .hero {
        padding: 40px 0 50px;
    }
    .hero-title {
        font-size: 1.75rem;
    }
    .hero-stats {
        gap: 10px;
    }
    .hero-stat {
        padding: 10px 14px;
        min-width: 90px;
    }
    .game-grid {
        grid-template-columns: 1fr;
    }
    .related-card {
        width: 220px;
    }
    .rules-grid {
        grid-template-columns: 1fr;
    }
    .btn-lg {
        padding: 13px 26px;
        min-height: 48px;
        font-size: .95rem;
    }
    .nav-login {
        padding: 6px 9px;
        font-size: .82rem;
    }
    .nav-actions .btn {
        padding: 9px 14px;
        font-size: .82rem;
        min-height: 36px;
    }
    .site-footer {
        padding: 36px 0 20px;
    }
    .footer-grid {
        grid-template-columns: 1fr 1fr;
    }
}
@media (max-width: 520px) {
    .nav-logo {
        font-size: .98rem;
    }
    .nav-logo .logo-icon {
        width: 34px;
        height: 34px;
        font-size: 1rem;
    }
    .nav-actions .btn {
        padding: 8px 10px;
        font-size: .78rem;
        min-height: 32px;
    }
    .hero-panel {
        padding: 16px;
    }
    .hero-avatar {
        width: 54px;
        height: 54px;
        font-size: 1.4rem;
    }
    .compare-table th,
    .compare-table td {
        padding: 10px 12px;
        font-size: .82rem;
    }
    .footer-grid {
        grid-template-columns: 1fr;
    }
    .fab {
        width: 50px;
        height: 50px;
        bottom: 80px;
        left: 12px;
        font-size: 1.15rem;
    }
}

/* roulang page: article */
:root {
        --bg-deep: #0A2E1C;
        --bg-forest: #123E25;
        --bg-darker: #062315;
        --accent-gold: #FFD700;
        --accent-red: #E53935;
        --text-white: #FFFFFF;
        --text-pale: #D1F2EB;
        --text-muted: #9FB8AE;
        --border-gold: rgba(255, 215, 0, .35);
        --border-soft: rgba(255,255,255,.1);
        --radius-sm: 10px;
        --radius-md: 16px;
        --radius-lg: 22px;
        --shadow-card: 0 12px 32px rgba(0,0,0,.25);
        --shadow-gold: 0 6px 20px rgba(255,215,0,.18);
        --container: 1180px;
        --space-xs: .5rem;
        --space-sm: 1rem;
        --space-md: 1.8rem;
        --space-lg: 3rem;
        --space-xl: 4.5rem;
        --font-base: 'Be Vietnam Pro', system-ui, -apple-system, 'Segoe UI', Roboto, 'Helvetica Neue', sans-serif;
        --transition: .25s ease;
    }
    *,
    *::before,
    *::after {
        box-sizing: border-box;
    }
    html {
        scroll-behavior: smooth;
        -webkit-text-size-adjust: 100%;
    }
    body {
        font-family: var(--font-base);
        font-size: 16px;
        line-height: 1.6;
        background: var(--bg-deep);
        color: var(--text-white);
        min-height: 100vh;
        overflow-x: hidden;
        -webkit-font-smoothing: antialiased;
        -moz-osx-font-smoothing: grayscale;
        margin: 0;
    }
    img {
        max-width: 100%;
        height: auto;
        display: block;
    }
    a {
        color: var(--accent-gold);
        text-decoration: none;
        transition: color var(--transition);
    }
    a:hover {
        color: #FFED8A;
    }
    a:focus-visible,
    button:focus-visible,
    input:focus-visible,
    label:focus-visible {
        outline: 3px solid rgba(255, 215, 0, .65);
        outline-offset: 2px;
        border-radius: 4px;
    }
    button,
    input {
        font-family: inherit;
        border: none;
        background: none;
        color: inherit;
        cursor: pointer;
    }
    .container {
        width: 100%;
        max-width: var(--container);
        margin: 0 auto;
        padding: 0 clamp(16px, 2.4vw, 28px);
    }
    .btn {
        display: inline-flex;
        align-items: center;
        justify-content: center;
        gap: 8px;
        font-weight: 700;
        font-size: .95rem;
        letter-spacing: .02em;
        border-radius: 50px;
        padding: 12px 28px;
        line-height: 1.2;
        transition: all var(--transition);
        cursor: pointer;
        text-align: center;
        min-height: 46px;
        white-space: nowrap;
    }
    .btn-primary {
        background: linear-gradient(135deg, #FFD700 0%, #FFB800 55%, #E0A000 100%);
        color: #0A2E1C;
        box-shadow: 0 8px 24px rgba(255, 215, 0, .28);
    }
    .btn-primary:hover {
        transform: translateY(-2px);
        box-shadow: 0 12px 32px rgba(255, 215, 0, .4);
        color: #0A2E1C;
    }
    .btn-primary:active {
        transform: translateY(0) scale(.98);
        box-shadow: 0 6px 16px rgba(255, 215, 0, .25);
    }
    .btn-ghost {
        background: transparent;
        color: var(--text-white);
        border: 1px solid var(--border-soft);
    }
    .btn-ghost:hover {
        border-color: var(--accent-gold);
        background: rgba(255, 215, 0, .1);
        color: var(--accent-gold);
    }
    .btn-red {
        background: linear-gradient(135deg, #E53935, #B71C1C);
        color: #fff;
        box-shadow: 0 8px 24px rgba(229, 57, 53, .25);
    }
    .btn-red:hover {
        transform: translateY(-2px);
        box-shadow: 0 12px 32px rgba(229, 57, 53, .35);
    }
    .btn-sm {
        padding: 9px 18px;
        min-height: 38px;
        font-size: .85rem;
        border-radius: 30px;
    }
    .btn-lg {
        padding: 15px 34px;
        min-height: 54px;
        font-size: 1.02rem;
        border-radius: 60px;
    }
    /* Header / Nav */
    .site-header {
        position: sticky;
        top: 0;
        z-index: 100;
        background: rgba(10, 46, 28, .92);
        backdrop-filter: blur(18px);
        -webkit-backdrop-filter: blur(18px);
        border-bottom: 1px solid var(--border-soft);
        box-shadow: 0 4px 20px rgba(0,0,0,.18);
    }
    .nav-wrap {
        display: flex;
        align-items: center;
        justify-content: space-between;
        gap: var(--space-sm);
        min-height: 70px;
    }
    .nav-logo {
        display: flex;
        align-items: center;
        gap: 10px;
        font-weight: 800;
        font-size: 1.15rem;
        color: var(--text-white);
        letter-spacing: .01em;
        white-space: nowrap;
    }
    .nav-logo .logo-icon {
        width: 40px;
        height: 40px;
        background: linear-gradient(135deg, #FFD700, #FFB800);
        display: inline-flex;
        align-items: center;
        justify-content: center;
        border-radius: 50%;
        color: #0A2E1C;
        font-size: 1.25rem;
        box-shadow: 0 4px 14px rgba(255, 215, 0, .35);
        flex-shrink: 0;
    }
    .nav-menu {
        display: flex;
        align-items: center;
        gap: clamp(10px, 1.7vw, 26px);
        list-style: none;
        margin: 0;
        padding: 0;
    }
    .nav-menu a {
        color: var(--text-pale);
        font-weight: 500;
        font-size: .93rem;
        padding: 8px 4px;
        position: relative;
        white-space: nowrap;
    }
    .nav-menu a::after {
        content: "";
        position: absolute;
        left: 0;
        bottom: 0;
        width: 0;
        height: 2px;
        background: var(--accent-gold);
        transition: width var(--transition);
        border-radius: 2px;
    }
    .nav-menu a:hover::after,
    .nav-menu a.active::after {
        width: 100%;
    }
    .nav-menu a.active {
        color: var(--accent-gold);
        font-weight: 600;
    }
    .nav-actions {
        display: flex;
        align-items: center;
        gap: 10px;
    }
    .nav-login {
        color: var(--text-white);
        font-weight: 600;
        font-size: .88rem;
        padding: 8px 12px;
        border-radius: 30px;
        transition: background var(--transition);
        white-space: nowrap;
    }
    .nav-login:hover {
        background: rgba(255, 255, 255, .08);
        color: #fff;
    }
    .nav-toggle {
        display: none;
    }
    .nav-toggle-label {
        display: none;
        flex-direction: column;
        gap: 5px;
        cursor: pointer;
        padding: 8px;
        border-radius: 8px;
        transition: background var(--transition);
    }
    .nav-toggle-label:hover {
        background: rgba(255, 255, 255, .08);
    }
    .nav-toggle-label span {
        display: block;
        width: 24px;
        height: 2px;
        background: var(--text-white);
        border-radius: 2px;
        transition: all .3s ease;
    }
    /* Article Hero */
    .article-hero {
        position: relative;
        padding: clamp(36px, 5vw, 64px) 0 clamp(32px, 4vw, 48px);
        background: url('/assets/images/backpic/back-2.jpg') center center / cover no-repeat;
        background-color: var(--bg-darker);
        isolation: isolate;
        overflow: hidden;
    }
    .article-hero::before {
        content: "";
        position: absolute;
        inset: 0;
        background: linear-gradient(135deg, rgba(10,46,28,.95) 0%, rgba(10,46,28,.75) 45%, rgba(6,35,21,.88) 100%);
        z-index: -1;
    }
    .breadcrumb {
        display: flex;
        align-items: center;
        flex-wrap: wrap;
        gap: 8px;
        font-size: .85rem;
        color: var(--text-muted);
        margin-bottom: var(--space-md);
    }
    .breadcrumb a {
        color: var(--text-muted);
    }
    .breadcrumb a:hover {
        color: var(--accent-gold);
    }
    .breadcrumb .sep {
        color: var(--accent-gold);
        opacity: .5;
    }
    .breadcrumb .current {
        color: var(--text-pale);
        font-weight: 500;
    }
    .article-hero-content {
        max-width: 860px;
    }
    .article-meta {
        display: flex;
        align-items: center;
        flex-wrap: wrap;
        gap: 14px;
        margin-bottom: var(--space-sm);
        font-size: .85rem;
    }
    .article-meta .tag {
        display: inline-flex;
        align-items: center;
        gap: 5px;
        background: rgba(255, 215, 0, .15);
        border: 1px solid var(--border-gold);
        color: var(--accent-gold);
        font-weight: 600;
        font-size: .78rem;
        letter-spacing: .03em;
        text-transform: uppercase;
        padding: 5px 12px;
        border-radius: 30px;
        line-height: 1.2;
    }
    .article-meta .date {
        color: var(--text-muted);
        font-weight: 400;
    }
    .article-meta .read-time {
        color: var(--text-muted);
        display: inline-flex;
        align-items: center;
        gap: 4px;
    }
    .article-hero h1 {
        font-size: clamp(1.7rem, 3.5vw, 2.5rem);
        font-weight: 800;
        line-height: 1.25;
        margin: 0 0 var(--space-sm) 0;
        color: var(--text-white);
        letter-spacing: .01em;
    }
    .article-hero .lead {
        font-size: clamp(1rem, 1.6vw, 1.15rem);
        color: var(--text-pale);
        line-height: 1.65;
        margin: 0;
        max-width: 720px;
    }
    /* Article Body */
    .article-body-section {
        padding: var(--space-lg) 0 var(--space-xl);
    }
    .article-layout {
        display: grid;
        grid-template-columns: minmax(0, 1fr) 300px;
        gap: clamp(24px, 3vw, 40px);
        align-items: start;
    }
    .article-main {
        min-width: 0;
    }
    .article-cover {
        border-radius: var(--radius-lg);
        overflow: hidden;
        margin-bottom: var(--space-lg);
        box-shadow: var(--shadow-card);
        border: 1px solid var(--border-soft);
    }
    .article-cover img {
        width: 100%;
        height: auto;
        object-fit: cover;
        aspect-ratio: 16/9;
    }
    .article-content {
        color: var(--text-pale);
        font-size: 1.02rem;
        line-height: 1.7;
    }
    .article-content h2 {
        font-size: 1.5rem;
        font-weight: 700;
        color: var(--text-white);
        margin: var(--space-lg) 0 var(--space-sm);
        line-height: 1.35;
    }
    .article-content h3 {
        font-size: 1.2rem;
        font-weight: 600;
        color: var(--text-white);
        margin: var(--space-md) 0 var(--space-xs);
        line-height: 1.4;
    }
    .article-content p {
        margin: 0 0 var(--space-sm);
    }
    .article-content ul,
    .article-content ol {
        margin: 0 0 var(--space-sm);
        padding-left: 1.5rem;
    }
    .article-content li {
        margin-bottom: 6px;
    }
    .article-content img {
        border-radius: var(--radius-md);
        margin: var(--space-sm) 0;
    }
    .article-content blockquote {
        border-left: 4px solid var(--accent-gold);
        background: rgba(255, 215, 0, .06);
        padding: var(--space-sm) var(--space-md);
        border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
        margin: var(--space-md) 0;
        color: var(--text-pale);
        font-style: italic;
    }
    .article-content a {
        text-decoration: underline;
        text-underline-offset: 3px;
    }
    .not-found {
        text-align: center;
        padding: var(--space-xl) var(--space-md);
        background: rgba(255, 255, 255, .03);
        border: 1px dashed var(--border-soft);
        border-radius: var(--radius-md);
    }
    .not-found .icon {
        font-size: 3rem;
        margin-bottom: var(--space-sm);
    }
    .not-found h2 {
        font-size: 1.4rem;
        margin-bottom: var(--space-xs);
    }
    .not-found p {
        color: var(--text-muted);
        margin-bottom: var(--space-md);
    }
    /* Sidebar */
    .article-sidebar {
        display: flex;
        flex-direction: column;
        gap: var(--space-md);
        position: sticky;
        top: 90px;
    }
    .sidebar-card {
        background: var(--bg-forest);
        border: 1px solid var(--border-soft);
        border-radius: var(--radius-md);
        padding: var(--space-md);
        box-shadow: var(--shadow-card);
    }
    .sidebar-card h4 {
        font-size: 1rem;
        font-weight: 700;
        color: var(--accent-gold);
        margin: 0 0 var(--space-sm);
        letter-spacing: .02em;
    }
    .sidebar-list {
        list-style: none;
        padding: 0;
        margin: 0;
        display: flex;
        flex-direction: column;
        gap: 10px;
    }
    .sidebar-list li a {
        display: flex;
        align-items: center;
        gap: 8px;
        font-size: .9rem;
        color: var(--text-pale);
        padding: 8px 0;
        border-bottom: 1px solid rgba(255,255,255,.05);
        transition: color var(--transition);
    }
    .sidebar-list li:last-child a {
        border-bottom: none;
    }
    .sidebar-list li a:hover {
        color: var(--accent-gold);
    }
    .sidebar-tip {
        background: linear-gradient(135deg, rgba(255, 215, 0, .12), rgba(255, 215, 0, .04));
        border: 1px solid var(--border-gold);
        border-radius: var(--radius-md);
        padding: var(--space-md);
    }
    .sidebar-tip .tip-icon {
        font-size: 1.8rem;
        margin-bottom: 8px;
    }
    .sidebar-tip h4 {
        color: var(--accent-gold);
        font-size: .98rem;
        margin: 0 0 8px;
    }
    .sidebar-tip p {
        color: var(--text-pale);
        font-size: .88rem;
        margin: 0 0 var(--space-sm);
        line-height: 1.6;
    }
    /* Related Section */
    .related-section {
        padding: var(--space-lg) 0 var(--space-xl);
    }
    .related-section h2 {
        font-size: 1.6rem;
        font-weight: 700;
        color: var(--text-white);
        margin-bottom: var(--space-md);
    }
    .related-grid {
        display: grid;
        grid-template-columns: repeat(3, 1fr);
        gap: var(--space-sm);
    }
    .related-card {
        background: var(--bg-forest);
        border: 1px solid var(--border-soft);
        border-radius: var(--radius-md);
        overflow: hidden;
        transition: all var(--transition);
        box-shadow: var(--shadow-card);
    }
    .related-card:hover {
        transform: translateY(-4px);
        border-color: var(--border-gold);
        box-shadow: var(--shadow-gold);
    }
    .related-card img {
        width: 100%;
        height: 160px;
        object-fit: cover;
        aspect-ratio: 16/9;
    }
    .related-card .card-body {
        padding: var(--space-sm);
    }
    .related-card h3 {
        font-size: .95rem;
        font-weight: 600;
        color: var(--text-white);
        margin: 0 0 6px;
        line-height: 1.4;
    }
    .related-card h3 a {
        color: inherit;
    }
    .related-card h3 a:hover {
        color: var(--accent-gold);
    }
    .related-card p {
        font-size: .82rem;
        color: var(--text-muted);
        margin: 0;
        line-height: 1.5;
    }
    /* CTA Section */
    .cta-section {
        padding: var(--space-lg) 0 var(--space-xl);
    }
    .cta-box {
        background: linear-gradient(135deg, var(--bg-forest) 0%, var(--bg-darker) 100%);
        border: 1px solid var(--border-gold);
        border-radius: var(--radius-lg);
        padding: clamp(28px, 4vw, 48px);
        text-align: center;
        box-shadow: var(--shadow-card);
    }
    .cta-box h2 {
        font-size: clamp(1.4rem, 2.5vw, 1.9rem);
        font-weight: 800;
        color: var(--text-white);
        margin: 0 0 var(--space-sm);
    }
    .cta-box p {
        color: var(--text-pale);
        font-size: 1rem;
        margin: 0 0 var(--space-md);
        max-width: 560px;
        margin-left: auto;
        margin-right: auto;
    }
    .cta-actions {
        display: flex;
        align-items: center;
        justify-content: center;
        gap: var(--space-sm);
        flex-wrap: wrap;
    }
    /* Footer */
    .site-footer {
        background: var(--bg-darker);
        border-top: 1px solid var(--border-soft);
        padding: var(--space-lg) 0 var(--space-sm);
        margin-top: var(--space-xl);
    }
    .footer-grid {
        display: grid;
        grid-template-columns: 1.4fr 1fr 1fr 1fr;
        gap: clamp(20px, 3vw, 40px);
        margin-bottom: var(--space-lg);
    }
    .footer-brand {
        display: flex;
        flex-direction: column;
        gap: var(--space-sm);
    }
    .footer-brand .nav-logo {
        margin-bottom: 4px;
    }
    .footer-brand p {
        color: var(--text-muted);
        font-size: .88rem;
        max-width: 300px;
        margin: 0;
        line-height: 1.7;
    }
    .footer-col {
        display: flex;
        flex-direction: column;
        gap: 10px;
    }
    .footer-col h4 {
        font-size: .95rem;
        font-weight: 700;
        color: var(--accent-gold);
        margin: 0 0 4px;
        letter-spacing: .02em;
    }
    .footer-col a {
        color: var(--text-muted);
        font-size: .88rem;
        transition: color var(--transition);
    }
    .footer-col a:hover {
        color: var(--accent-gold);
    }
    .footer-bottom {
        border-top: 1px solid var(--border-soft);
        padding-top: var(--space-sm);
        display: flex;
        align-items: center;
        justify-content: space-between;
        flex-wrap: wrap;
        gap: 10px;
        font-size: .82rem;
        color: var(--text-muted);
    }
    .footer-bottom a {
        color: var(--text-muted);
    }
    .footer-bottom a:hover {
        color: var(--accent-gold);
    }
    /* FAB */
    .fab-left {
        position: fixed;
        left: 16px;
        bottom: 96px;
        z-index: 50;
        width: 52px;
        height: 52px;
        border-radius: 50%;
        background: linear-gradient(135deg, #FFD700 0%, #FFB800 55%, #E0A000 100%);
        border: 3px solid #FFD700;
        box-shadow: 0 4px 20px rgba(255,215,0,0.35);
        display: flex;
        align-items: center;
        justify-content: center;
        cursor: pointer;
        transition: all var(--transition);
        animation: float 3s ease-in-out infinite;
        text-decoration: none;
    }
    .fab-left:hover {
        transform: scale(1.1);
        box-shadow: 0 8px 28px rgba(255,215,0,0.5);
        animation-play-state: paused;
    }
    .fab-left:active {
        transform: scale(0.95) translateY(2px);
    }
    .fab-left .fab-icon {
        font-size: 1.4rem;
        color: #0A2E1C;
        position: relative;
        z-index: 2;
    }
    .fab-left .fab-dot {
        position: absolute;
        top: -3px;
        right: -3px;
        width: 14px;
        height: 14px;
        background: #E53935;
        border: 2px solid #FFD700;
        border-radius: 50%;
        animation: blink-dot 1.5s ease-in-out infinite;
        z-index: 3;
    }
    @keyframes float {
        0%, 100% { transform: translateY(0); }
        50% { transform: translateY(-8px); }
    }
    @keyframes blink-dot {
        0%, 100% { opacity: 1; transform: scale(1); }
        50% { opacity: .4; transform: scale(.7); }
    }
    /* Responsive */
    @media (max-width: 1024px) {
        .article-layout {
            grid-template-columns: 1fr;
        }
        .article-sidebar {
            position: static;
            flex-direction: row;
            flex-wrap: wrap;
        }
        .sidebar-card {
            flex: 1;
            min-width: 250px;
        }
        .sidebar-tip {
            flex: 1;
            min-width: 250px;
        }
        .related-grid {
            grid-template-columns: repeat(2, 1fr);
        }
        .footer-grid {
            grid-template-columns: 1fr 1fr;
        }
    }
    @media (max-width: 768px) {
        .nav-toggle-label {
            display: flex;
        }
        .nav-menu {
            position: fixed;
            top: 70px;
            left: 0;
            right: 0;
            background: rgba(10, 46, 28, .98);
            backdrop-filter: blur(20px);
            border-bottom: 1px solid var(--border-soft);
            flex-direction: column;
            align-items: stretch;
            padding: var(--space-sm) var(--space-md) var(--space-md);
            gap: 4px;
            display: none;
            max-height: calc(100vh - 70px);
            overflow-y: auto;
        }
        .nav-toggle:checked ~ .nav-menu {
            display: flex;
        }
        .nav-menu a {
            padding: 12px 16px;
            font-size: 1rem;
            border-radius: var(--radius-sm);
        }
        .nav-menu a:hover {
            background: rgba(255, 255, 255, .06);
        }
        .nav-menu a::after {
            display: none;
        }
        .nav-menu a.active {
            background: rgba(255, 215, 0, .12);
        }
        .nav-actions {
            gap: 6px;
        }
        .nav-login {
            font-size: .82rem;
            padding: 6px 8px;
        }
        .nav-actions .btn {
            padding: 8px 14px;
            font-size: .8rem;
            min-height: 34px;
        }
        .nav-logo {
            font-size: 1rem;
        }
        .nav-logo .logo-icon {
            width: 34px;
            height: 34px;
            font-size: 1.05rem;
        }
        .article-layout {
            grid-template-columns: 1fr;
        }
        .article-sidebar {
            flex-direction: column;
        }
        .sidebar-card,
        .sidebar-tip {
            min-width: auto;
        }
        .related-grid {
            grid-template-columns: 1fr;
        }
        .footer-grid {
            grid-template-columns: 1fr;
            gap: var(--space-md);
        }
        .footer-bottom {
            flex-direction: column;
            text-align: center;
        }
        .article-cover img {
            aspect-ratio: 16/10;
        }
        .cta-actions {
            flex-direction: column;
            width: 100%;
        }
        .cta-actions .btn {
            width: 100%;
            max-width: 300px;
        }
        .article-hero h1 {
            font-size: 1.5rem;
        }
        .article-meta {
            flex-direction: column;
            align-items: flex-start;
            gap: 8px;
        }
    }
    @media (max-width: 520px) {
        .nav-logo {
            font-size: .9rem;
            gap: 6px;
        }
        .nav-logo .logo-icon {
            width: 30px;
            height: 30px;
            font-size: .95rem;
        }
        .nav-wrap {
            gap: 6px;
        }
        .nav-actions {
            gap: 4px;
        }
        .nav-login {
            font-size: .75rem;
            padding: 5px 6px;
        }
        .nav-actions .btn {
            padding: 7px 11px;
            font-size: .75rem;
            min-height: 30px;
            border-radius: 20px;
        }
        .article-hero {
            padding: 28px 0 24px;
        }
        .article-body-section {
            padding-top: var(--space-md);
        }
        .article-cover img {
            aspect-ratio: 16/9;
        }
        .article-content h2 {
            font-size: 1.25rem;
        }
        .article-content h3 {
            font-size: 1.1rem;
        }
        .article-content {
            font-size: .95rem;
        }
        .related-card img {
            height: 140px;
        }
    }

/* roulang page: category1 */
/* Additional category page styles */
    .hero-category {
        position: relative;
        padding: clamp(56px, 8vw, 100px) 0;
        background: url('/assets/images/backpic/back-2.jpg') center center / cover no-repeat;
        background-color: var(--bg-darker);
        isolation: isolate;
        overflow: hidden;
    }
    .hero-category::before {
        content: "";
        position: absolute;
        inset: 0;
        background: linear-gradient(135deg, rgba(10,46,28,.95) 0%, rgba(10,46,28,.75) 50%, rgba(6,35,21,.85) 100%);
        z-index: -1;
    }
    .hero-category .hero-inner {
        display: grid;
        grid-template-columns: 1.05fr .95fr;
        gap: clamp(32px, 5vw, 64px);
        align-items: center;
    }
    .hero-category .hero-copy {
        max-width: 620px;
    }
    .hero-category .hero-copy h1 {
        font-size: clamp(2rem, 4.5vw, 3.25rem);
        font-weight: 800;
        line-height: 1.15;
        color: var(--text-white);
        margin-bottom: 16px;
    }
    .hero-category .hero-copy h1 span {
        color: var(--accent-gold);
    }
    .hero-category .hero-copy p {
        font-size: clamp(1rem, 1.5vw, 1.15rem);
        color: var(--text-pale);
        line-height: 1.7;
        margin-bottom: 28px;
    }
    .hero-category .hero-actions {
        display: flex;
        flex-wrap: wrap;
        gap: 12px;
        align-items: center;
    }
    .hero-category .hero-actions .btn {
        min-width: 170px;
    }
    .hero-category .hero-visual {
        position: relative;
        display: flex;
        align-items: center;
        justify-content: center;
        min-height: 320px;
    }
    .hero-category .hero-visual img {
        width: 100%;
        max-width: 480px;
        border-radius: var(--radius-lg);
        box-shadow: var(--shadow-card), 0 0 0 2px rgba(255,215,0,.25);
        object-fit: cover;
        aspect-ratio: 4/3;
    }
    .hero-category .hero-visual::after {
        content: "";
        position: absolute;
        inset: -12px;
        border: 1px dashed rgba(255,215,0,.4);
        border-radius: calc(var(--radius-lg) + 12px);
        z-index: -1;
        animation: float 4s ease-in-out infinite;
    }
    @keyframes float {
        0%, 100% { transform: translateY(0); }
        50% { transform: translateY(8px); }
    }
    .section-category {
        padding: clamp(48px, 7vw, 80px) 0;
    }
    .section-category .section-head {
        max-width: 720px;
        margin-bottom: 40px;
    }
    .section-category .section-head h2 {
        font-size: clamp(1.6rem, 3vw, 2.2rem);
        font-weight: 700;
        line-height: 1.3;
        color: var(--text-white);
        margin-bottom: 12px;
    }
    .section-category .section-head p {
        font-size: 1rem;
        color: var(--text-muted);
        line-height: 1.7;
    }
    .feature-grid {
        display: grid;
        grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
        gap: 24px;
    }
    .feature-card {
        background: rgba(255,255,255,.04);
        border: 1px solid var(--border-soft);
        border-radius: var(--radius-md);
        padding: 24px;
        transition: transform var(--transition), border-color var(--transition), background var(--transition);
    }
    .feature-card:hover {
        transform: translateY(-4px);
        border-color: var(--border-gold);
        background: rgba(255,215,0,.06);
    }
    .feature-card .feature-icon {
        font-size: 2rem;
        margin-bottom: 12px;
        display: inline-block;
    }
    .feature-card h3 {
        font-size: 1.15rem;
        font-weight: 600;
        color: var(--text-white);
        margin-bottom: 8px;
    }
    .feature-card p {
        color: var(--text-muted);
        font-size: .95rem;
        line-height: 1.6;
    }
    .split-section {
        display: grid;
        grid-template-columns: 1fr 1fr;
        gap: clamp(32px, 5vw, 64px);
        align-items: center;
    }
    .split-section .split-image img {
        border-radius: var(--radius-lg);
        box-shadow: var(--shadow-card);
        aspect-ratio: 4/3;
        object-fit: cover;
        width: 100%;
    }
    .split-section .split-copy h3 {
        font-size: 1.6rem;
        font-weight: 700;
        margin-bottom: 16px;
        color: var(--text-white);
    }
    .split-section .split-copy p {
        color: var(--text-muted);
        line-height: 1.7;
        margin-bottom: 16px;
    }
    .split-section .split-copy ul {
        list-style: none;
        padding: 0;
        margin: 0 0 24px;
    }
    .split-section .split-copy ul li {
        display: flex;
        align-items: flex-start;
        gap: 10px;
        margin-bottom: 12px;
        color: var(--text-pale);
    }
    .split-section .split-copy ul li::before {
        content: "✔";
        color: var(--accent-gold);
        font-weight: 700;
        flex-shrink: 0;
        margin-top: 2px;
    }
    .steps {
        display: grid;
        grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
        gap: 20px;
        counter-reset: step;
    }
    .step-item {
        background: rgba(255,255,255,.04);
        border: 1px solid var(--border-soft);
        border-radius: var(--radius-md);
        padding: 24px;
        position: relative;
    }
    .step-item::before {
        counter-increment: step;
        content: counter(step);
        display: inline-flex;
        align-items: center;
        justify-content: center;
        width: 40px;
        height: 40px;
        background: linear-gradient(135deg, #FFD700, #FFB800);
        color: #0A2E1C;
        font-weight: 800;
        font-size: 1.2rem;
        border-radius: 50%;
        margin-bottom: 12px;
    }
    .step-item h3 {
        font-size: 1.1rem;
        font-weight: 600;
        margin-bottom: 6px;
        color: var(--text-white);
    }
    .step-item p {
        color: var(--text-muted);
        font-size: .95rem;
        line-height: 1.6;
    }
    .faq-list {
        max-width: 780px;
        margin: 0 auto;
    }
    .faq-item {
        border: 1px solid var(--border-soft);
        border-radius: var(--radius-sm);
        margin-bottom: 12px;
        background: rgba(255,255,255,.03);
        overflow: hidden;
    }
    .faq-item summary {
        padding: 16px 20px;
        font-weight: 600;
        color: var(--text-white);
        cursor: pointer;
        list-style: none;
        display: flex;
        justify-content: space-between;
        align-items: center;
        gap: 16px;
        transition: background var(--transition);
    }
    .faq-item summary:hover {
        background: rgba(255,215,0,.06);
    }
    .faq-item summary::after {
        content: "+";
        font-size: 1.4rem;
        font-weight: 400;
        color: var(--accent-gold);
        transition: transform var(--transition);
    }
    .faq-item[open] summary::after {
        content: "−";
        transform: rotate(180deg);
    }
    .faq-item .faq-content {
        padding: 0 20px 16px;
        color: var(--text-muted);
        line-height: 1.7;
        font-size: .95rem;
    }
    .cta-section {
        padding: clamp(48px, 7vw, 80px) 0;
        text-align: center;
    }
    .cta-section .cta-inner {
        background: linear-gradient(135deg, rgba(255,215,0,.12), rgba(255,215,0,.04));
        border: 1px solid var(--border-gold);
        border-radius: var(--radius-lg);
        padding: clamp(32px, 5vw, 56px);
    }
    .cta-section h2 {
        font-size: clamp(1.6rem, 3vw, 2.2rem);
        font-weight: 700;
        margin-bottom: 12px;
        color: var(--text-white);
    }
    .cta-section p {
        color: var(--text-pale);
        margin-bottom: 24px;
        font-size: 1.05rem;
        line-height: 1.7;
    }
    @media (max-width: 991px) {
        .hero-category .hero-inner,
        .split-section {
            grid-template-columns: 1fr;
        }
        .hero-category .hero-visual {
            min-height: 240px;
        }
        .hero-category .hero-visual img {
            max-width: 100%;
        }
    }
    @media (max-width: 767px) {
        .nav-wrap {
            flex-wrap: wrap;
            padding: 12px 0;
        }
        .nav-toggle-label {
            display: flex;
            order: 2;
            margin-left: auto;
        }
        .nav-menu {
            display: none;
            flex-direction: column;
            align-items: flex-start;
            width: 100%;
            order: 3;
            padding: 12px 0;
            gap: 8px;
        }
        .nav-toggle:checked ~ .nav-menu {
            display: flex;
        }
        .nav-actions {
            order: 4;
            width: 100%;
            justify-content: flex-start;
            margin-top: 8px;
        }
        .hero-category .hero-actions .btn {
            width: 100%;
        }
        .section-category {
            padding: 40px 0;
        }
        .cta-section .cta-inner {
            padding: 24px;
        }
    }

/* roulang page: category2 */
:root {
            --bg-deep: #0A2E1C;
            --bg-forest: #123E25;
            --bg-darker: #062315;
            --accent-gold: #FFD700;
            --accent-red: #E53935;
            --text-white: #FFFFFF;
            --text-pale: #D1F2EB;
            --text-muted: #9FB8AE;
            --border-gold: rgba(255, 215, 0, .35);
            --border-soft: rgba(255, 255, 255, .1);
            --radius-sm: 10px;
            --radius-md: 16px;
            --radius-lg: 22px;
            --shadow-card: 0 12px 32px rgba(0, 0, 0, .25);
            --shadow-gold: 0 6px 20px rgba(255, 215, 0, .18);
            --container: 1180px;
            --space-xs: .5rem;
            --space-sm: 1rem;
            --space-md: 1.8rem;
            --space-lg: 3rem;
            --space-xl: 4.5rem;
            --font-base: 'Be Vietnam Pro', system-ui, -apple-system, 'Segoe UI', Roboto, 'Helvetica Neue', sans-serif;
            --transition: .25s ease;
        }
        /* roulang page: category2 */
        *,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        html {
            scroll-behavior: smooth;
            -webkit-text-size-adjust: 100%;
        }
        body {
            font-family: var(--font-base);
            font-size: 16px;
            line-height: 1.6;
            background: var(--bg-deep);
            color: var(--text-white);
            min-height: 100vh;
            overflow-x: hidden;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        a {
            color: var(--accent-gold);
            text-decoration: none;
            transition: color var(--transition);
        }
        a:hover {
            color: #FFED8A;
        }
        a:focus-visible,
        button:focus-visible,
        input:focus-visible,
        label:focus-visible {
            outline: 3px solid rgba(255, 215, 0, .65);
            outline-offset: 2px;
            border-radius: 4px;
        }
        button,
        input {
            font-family: inherit;
            border: none;
            background: none;
            color: inherit;
            cursor: pointer;
        }
        ul,
        ol {
            list-style: none;
        }
        .container {
            width: 100%;
            max-width: var(--container);
            margin: 0 auto;
            padding: 0 clamp(16px, 2.4vw, 28px);
        }
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            font-weight: 700;
            font-size: .95rem;
            letter-spacing: .02em;
            border-radius: 50px;
            padding: 12px 28px;
            line-height: 1.2;
            transition: all var(--transition);
            cursor: pointer;
            text-align: center;
            min-height: 46px;
            white-space: nowrap;
        }
        .btn-primary {
            background: linear-gradient(135deg, #FFD700 0%, #FFB800 55%, #E0A000 100%);
            color: #0A2E1C;
            box-shadow: 0 8px 24px rgba(255, 215, 0, .28);
        }
        .btn-primary:hover {
            transform: translateY(-2px);
            box-shadow: 0 12px 32px rgba(255, 215, 0, .4);
            color: #0A2E1C;
        }
        .btn-primary:active {
            transform: translateY(0) scale(.98);
            box-shadow: 0 6px 16px rgba(255, 215, 0, .25);
        }
        .btn-ghost {
            background: transparent;
            color: var(--text-white);
            border: 1px solid var(--border-soft);
        }
        .btn-ghost:hover {
            border-color: var(--accent-gold);
            background: rgba(255, 215, 0, .1);
            color: var(--accent-gold);
        }
        .btn-red {
            background: linear-gradient(135deg, #E53935, #B71C1C);
            color: #fff;
            box-shadow: 0 8px 24px rgba(229, 57, 53, .25);
        }
        .btn-red:hover {
            transform: translateY(-2px);
            box-shadow: 0 12px 32px rgba(229, 57, 53, .35);
        }
        .btn-sm {
            padding: 9px 18px;
            min-height: 38px;
            font-size: .85rem;
            border-radius: 30px;
        }
        .btn-lg {
            padding: 15px 34px;
            min-height: 54px;
            font-size: 1.02rem;
            border-radius: 60px;
        }
        /* Header / Nav */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 100;
            background: rgba(10, 46, 28, .92);
            backdrop-filter: blur(18px);
            -webkit-backdrop-filter: blur(18px);
            border-bottom: 1px solid var(--border-soft);
            box-shadow: 0 4px 20px rgba(0, 0, 0, .18);
        }
        .nav-wrap {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: var(--space-sm);
            min-height: 70px;
        }
        .nav-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-weight: 800;
            font-size: 1.15rem;
            color: var(--text-white);
            letter-spacing: .01em;
            white-space: nowrap;
        }
        .nav-logo .logo-icon {
            width: 40px;
            height: 40px;
            background: linear-gradient(135deg, #FFD700, #FFB800);
            display: inline-flex;
            align-items: center;
            justify-content: center;
            border-radius: 50%;
            color: #0A2E1C;
            font-size: 1.25rem;
            box-shadow: 0 4px 14px rgba(255, 215, 0, .35);
        }
        .nav-menu {
            display: flex;
            align-items: center;
            gap: clamp(10px, 1.7vw, 26px);
            list-style: none;
        }
        .nav-menu a {
            color: var(--text-pale);
            font-weight: 500;
            font-size: .93rem;
            padding: 8px 4px;
            position: relative;
            white-space: nowrap;
        }
        .nav-menu a::after {
            content: "";
            position: absolute;
            left: 0;
            bottom: 0;
            width: 0;
            height: 2px;
            background: var(--accent-gold);
            transition: width var(--transition);
            border-radius: 2px;
        }
        .nav-menu a:hover::after,
        .nav-menu a.active::after {
            width: 100%;
        }
        .nav-menu a.active {
            color: var(--accent-gold);
        }
        .nav-actions {
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .nav-login {
            color: var(--text-white);
            font-weight: 600;
            font-size: .88rem;
            padding: 8px 12px;
            border-radius: 30px;
            transition: background var(--transition);
            white-space: nowrap;
        }
        .nav-login:hover {
            background: rgba(255, 255, 255, .08);
            color: #fff;
        }
        .nav-toggle {
            display: none;
        }
        .nav-toggle-label {
            display: none;
            flex-direction: column;
            gap: 5px;
            cursor: pointer;
            padding: 8px;
            border-radius: 8px;
            transition: background var(--transition);
        }
        .nav-toggle-label:hover {
            background: rgba(255, 255, 255, .08);
        }
        .nav-toggle-label span {
            display: block;
            width: 24px;
            height: 2px;
            background: var(--text-white);
            border-radius: 2px;
            transition: all .3s ease;
        }
        /* Page Banner */
        .page-banner {
            position: relative;
            padding: clamp(50px, 6vw, 80px) 0 clamp(56px, 7vw, 96px);
            background: url('/assets/images/backpic/back-2.jpg') center center / cover no-repeat;
            background-color: var(--bg-darker);
            isolation: isolate;
            overflow: hidden;
        }
        .page-banner::before {
            content: "";
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(10, 46, 28, .94) 0%, rgba(10, 46, 28, .7) 45%, rgba(6, 35, 21, .82) 100%);
            z-index: -1;
        }
        .page-banner-inner {
            display: grid;
            grid-template-columns: 1.05fr .95fr;
            gap: clamp(28px, 4vw, 56px);
            align-items: center;
            min-height: 340px;
        }
        .breadcrumb {
            display: flex;
            align-items: center;
            gap: 8px;
            flex-wrap: wrap;
            margin-bottom: var(--space-sm);
            font-size: .86rem;
            color: var(--text-muted);
        }
        .breadcrumb a {
            color: var(--text-muted);
            transition: color var(--transition);
        }
        .breadcrumb a:hover {
            color: var(--accent-gold);
        }
        .breadcrumb .sep {
            color: var(--accent-gold);
            font-size: .7rem;
        }
        .breadcrumb .current {
            color: var(--accent-gold);
            font-weight: 600;
        }
        .page-banner h1 {
            font-size: clamp(1.8rem, 3.6vw, 2.9rem);
            line-height: 1.25;
            font-weight: 800;
            letter-spacing: -.01em;
            margin-bottom: var(--space-sm);
            color: var(--text-white);
        }
        .page-banner h1 .highlight {
            color: var(--accent-gold);
        }
        .page-banner .lead {
            font-size: clamp(1rem, 1.4vw, 1.15rem);
            color: var(--text-pale);
            line-height: 1.65;
            max-width: 560px;
            margin-bottom: var(--space-md);
        }
        .banner-actions {
            display: flex;
            gap: 12px;
            flex-wrap: wrap;
        }
        .banner-visual {
            position: relative;
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-card);
            border: 1px solid var(--border-gold);
        }
        .banner-visual img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            aspect-ratio: 4 / 3;
        }
        .banner-badge {
            position: absolute;
            top: 16px;
            right: 16px;
            background: rgba(10, 46, 28, .9);
            backdrop-filter: blur(8px);
            border: 1px solid var(--border-gold);
            color: var(--accent-gold);
            font-weight: 700;
            font-size: .82rem;
            padding: 8px 16px;
            border-radius: 30px;
            letter-spacing: .04em;
            display: flex;
            align-items: center;
            gap: 6px;
        }
        .banner-badge::before {
            content: "";
            width: 8px;
            height: 8px;
            border-radius: 50%;
            background: var(--accent-red);
            animation: blink-dot 1.6s infinite;
        }
        @keyframes blink-dot {
            0%, 100% { opacity: 1; transform: scale(1); }
            50% { opacity: .35; transform: scale(.7); }
        }
        /* Section base */
        .section {
            padding: var(--space-xl) 0;
        }
        .section-alt {
            background: var(--bg-forest);
        }
        .section-header {
            margin-bottom: clamp(var(--space-md), 3.5vw, var(--space-lg));
            max-width: 680px;
        }
        .section-header .eyebrow {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-size: .82rem;
            font-weight: 700;
            letter-spacing: .08em;
            text-transform: uppercase;
            color: var(--accent-gold);
            margin-bottom: 8px;
        }
        .section-header .eyebrow::before {
            content: "";
            width: 26px;
            height: 2px;
            background: var(--accent-gold);
            border-radius: 2px;
        }
        .section-header h2 {
            font-size: clamp(1.5rem, 2.6vw, 2rem);
            line-height: 1.3;
            font-weight: 800;
            letter-spacing: -.01em;
            color: var(--text-white);
        }
        .section-header p {
            margin-top: 10px;
            color: var(--text-pale);
            font-size: .98rem;
            line-height: 1.65;
        }
        /* Value prop */
        .value-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: clamp(28px, 4vw, 56px);
            align-items: center;
        }
        .value-image {
            border-radius: var(--radius-lg);
            overflow: hidden;
            border: 1px solid var(--border-soft);
            box-shadow: var(--shadow-card);
        }
        .value-image img {
            width: 100%;
            aspect-ratio: 4 / 3;
            object-fit: cover;
        }
        .value-list {
            display: flex;
            flex-direction: column;
            gap: var(--space-sm);
        }
        .value-item {
            display: flex;
            gap: 14px;
            align-items: flex-start;
            padding: 14px 0;
            border-bottom: 1px solid var(--border-soft);
            transition: border-color var(--transition);
        }
        .value-item:hover {
            border-color: var(--border-gold);
        }
        .value-item:last-child {
            border-bottom: none;
        }
        .value-item .icon-box {
            width: 44px;
            height: 44px;
            flex-shrink: 0;
            border-radius: 12px;
            background: rgba(255, 215, 0, .12);
            border: 1px solid var(--border-gold);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.2rem;
        }
        .value-item h3 {
            font-size: 1.05rem;
            font-weight: 700;
            color: var(--text-white);
            margin-bottom: 2px;
        }
        .value-item p {
            font-size: .92rem;
            color: var(--text-muted);
            line-height: 1.55;
        }
        /* Stats */
        .stats-row {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 14px;
            margin-top: var(--space-lg);
        }
        .stat-item {
            background: rgba(255, 255, 255, .04);
            border: 1px solid var(--border-soft);
            border-radius: var(--radius-md);
            padding: 20px 16px;
            text-align: left;
            transition: border-color var(--transition), transform var(--transition);
        }
        .stat-item:hover {
            border-color: var(--border-gold);
            transform: translateY(-3px);
        }
        .stat-item .stat-number {
            font-size: 1.7rem;
            font-weight: 800;
            color: var(--accent-gold);
            line-height: 1.2;
        }
        .stat-item .stat-label {
            font-size: .85rem;
            color: var(--text-muted);
            margin-top: 4px;
        }
        /* Feature cards */
        .feature-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 22px;
        }
        .feature-card {
            background: rgba(255, 255, 255, .04);
            border: 1px solid var(--border-soft);
            border-radius: var(--radius-md);
            padding: 26px 22px;
            transition: all var(--transition);
            display: flex;
            flex-direction: column;
            gap: 10px;
        }
        .feature-card:hover {
            border-color: var(--border-gold);
            box-shadow: var(--shadow-gold);
            transform: translateY(-4px);
            background: rgba(255, 215, 0, .06);
        }
        .feature-card .feature-icon {
            width: 52px;
            height: 52px;
            border-radius: 14px;
            background: rgba(255, 215, 0, .12);
            border: 1px solid var(--border-gold);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.6rem;
            margin-bottom: 4px;
        }
        .feature-card h3 {
            font-size: 1.1rem;
            font-weight: 700;
            color: var(--text-white);
        }
        .feature-card p {
            font-size: .92rem;
            color: var(--text-muted);
            line-height: 1.6;
            flex-grow: 1;
        }
        .feature-card .tag {
            display: inline-flex;
            align-self: flex-start;
            font-size: .76rem;
            font-weight: 700;
            letter-spacing: .04em;
            text-transform: uppercase;
            color: var(--accent-gold);
            background: rgba(255, 215, 0, .1);
            padding: 4px 12px;
            border-radius: 20px;
            border: 1px solid var(--border-gold);
            margin-top: 4px;
        }
        /* Scenarios */
        .scenario-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 22px;
        }
        .scenario-card {
            display: flex;
            gap: 18px;
            align-items: flex-start;
            background: rgba(255, 255, 255, .04);
            border: 1px solid var(--border-soft);
            border-radius: var(--radius-md);
            padding: 22px;
            transition: all var(--transition);
        }
        .scenario-card:hover {
            border-color: var(--border-gold);
            background: rgba(255, 215, 0, .05);
        }
        .scenario-card .scenario-icon {
            width: 48px;
            height: 48px;
            flex-shrink: 0;
            border-radius: 50%;
            background: linear-gradient(135deg, rgba(255, 215, 0, .18), rgba(255, 215, 0, .05));
            border: 1px solid var(--border-gold);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.4rem;
        }
        .scenario-card h3 {
            font-size: 1.05rem;
            font-weight: 700;
            color: var(--text-white);
            margin-bottom: 4px;
        }
        .scenario-card p {
            font-size: .9rem;
            color: var(--text-muted);
            line-height: 1.6;
        }
        /* Steps */
        .steps-list {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 18px;
            counter-reset: step;
        }
        .step-item {
            counter-increment: step;
            position: relative;
            padding: 24px 20px 20px;
            background: rgba(255, 255, 255, .04);
            border: 1px solid var(--border-soft);
            border-radius: var(--radius-md);
            transition: all var(--transition);
        }
        .step-item:hover {
            border-color: var(--border-gold);
            transform: translateY(-3px);
            box-shadow: var(--shadow-gold);
        }
        .step-item::before {
            content: counter(step, decimal-leading-zero);
            position: absolute;
            top: -14px;
            left: 20px;
            width: 34px;
            height: 34px;
            border-radius: 50%;
            background: linear-gradient(135deg, #FFD700, #FFB800);
            color: #0A2E1C;
            font-weight: 800;
            font-size: .85rem;
            display: flex;
            align-items: center;
            justify-content: center;
            box-shadow: 0 4px 14px rgba(255, 215, 0, .4);
        }
        .step-item h3 {
            font-size: 1rem;
            font-weight: 700;
            color: var(--text-white);
            margin-bottom: 6px;
            margin-top: 4px;
        }
        .step-item p {
            font-size: .88rem;
            color: var(--text-muted);
            line-height: 1.55;
        }
        /* Testimonials */
        .testimonial-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 22px;
        }
        .testimonial-card {
            background: rgba(255, 255, 255, .04);
            border: 1px solid var(--border-soft);
            border-radius: var(--radius-md);
            padding: 24px 22px;
            transition: all var(--transition);
        }
        .testimonial-card:hover {
            border-color: var(--border-gold);
            background: rgba(255, 215, 0, .05);
        }
        .testimonial-card .stars {
            display: flex;
            gap: 3px;
            color: var(--accent-gold);
            font-size: .95rem;
            margin-bottom: 12px;
            letter-spacing: 1px;
        }
        .testimonial-card blockquote {
            font-size: .92rem;
            color: var(--text-pale);
            line-height: 1.65;
            font-style: italic;
            margin-bottom: 16px;
        }
        .testimonial-card .author {
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .testimonial-card .author-avatar {
            width: 36px;
            height: 36px;
            border-radius: 50%;
            background: rgba(255, 215, 0, .15);
            border: 1px solid var(--border-gold);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: .95rem;
            color: var(--accent-gold);
        }
        .testimonial-card .author-name {
            font-size: .88rem;
            font-weight: 600;
            color: var(--text-white);
        }
        .testimonial-card .author-meta {
            font-size: .78rem;
            color: var(--text-muted);
        }
        /* FAQ */
        .faq-list {
            max-width: 820px;
            border-top: 1px solid var(--border-soft);
        }
        .faq-item {
            border-bottom: 1px solid var(--border-soft);
        }
        .faq-item summary {
            display: flex;
            justify-content: space-between;
            align-items: center;
            gap: 16px;
            padding: 20px 4px;
            cursor: pointer;
            font-weight: 600;
            font-size: 1.02rem;
            color: var(--text-white);
            transition: color var(--transition);
            list-style: none;
        }
        .faq-item summary::-webkit-details-marker {
            display: none;
        }
        .faq-item summary:hover {
            color: var(--accent-gold);
        }
        .faq-item summary .faq-icon {
            flex-shrink: 0;
            width: 32px;
            height: 32px;
            border-radius: 50%;
            background: rgba(255, 215, 0, .1);
            border: 1px solid var(--border-gold);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1rem;
            color: var(--accent-gold);
            transition: all var(--transition);
            font-weight: 800;
        }
        .faq-item[open] summary {
            color: var(--accent-gold);
        }
        .faq-item[open] summary .faq-icon {
            transform: rotate(45deg);
            background: rgba(255, 215, 0, .2);
        }
        .faq-item .faq-answer {
            padding: 0 4px 20px;
            font-size: .94rem;
            color: var(--text-muted);
            line-height: 1.7;
        }
        /* CTA section */
        .cta-section {
            padding: var(--space-xl) 0;
            position: relative;
            background: url('/assets/images/backpic/back-3.jpg') center center / cover no-repeat;
            background-color: var(--bg-darker);
            isolation: isolate;
            text-align: center;
        }
        .cta-section::before {
            content: "";
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(10, 46, 28, .96) 0%, rgba(10, 46, 28, .82) 50%, rgba(6, 35, 21, .9) 100%);
            z-index: -1;
        }
        .cta-inner {
            max-width: 680px;
            margin: 0 auto;
        }
        .cta-inner h2 {
            font-size: clamp(1.6rem, 2.8vw, 2.2rem);
            font-weight: 800;
            letter-spacing: -.01em;
            color: var(--text-white);
            margin-bottom: var(--space-sm);
        }
        .cta-inner p {
            color: var(--text-pale);
            font-size: 1rem;
            line-height: 1.65;
            margin-bottom: var(--space-md);
        }
        .cta-actions {
            display: flex;
            gap: 14px;
            justify-content: center;
            flex-wrap: wrap;
        }
        /* Footer */
        .site-footer {
            background: var(--bg-darker);
            border-top: 1px solid var(--border-soft);
            padding: var(--space-xl) 0 0;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: clamp(24px, 3vw, 48px);
            padding-bottom: var(--space-lg);
        }
        .footer-brand p {
            margin-top: 14px;
            font-size: .92rem;
            color: var(--text-muted);
            line-height: 1.7;
            max-width: 360px;
        }
        .footer-col h4 {
            font-size: .95rem;
            font-weight: 700;
            color: var(--text-white);
            margin-bottom: 14px;
        }
        .footer-col a {
            display: block;
            font-size: .9rem;
            color: var(--text-muted);
            padding: 5px 0;
            transition: color var(--transition), padding-left var(--transition);
        }
        .footer-col a:hover {
            color: var(--accent-gold);
            padding-left: 6px;
        }
        .footer-bottom {
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 10px;
            padding: var(--space-md) 0;
            border-top: 1px solid var(--border-soft);
            font-size: .85rem;
            color: var(--text-muted);
        }
        .footer-bottom a {
            color: var(--accent-gold);
        }
        .footer-bottom a:hover {
            color: #FFED8A;
        }
        /* FAB */
        .fab-royal {
            position: fixed;
            left: 16px;
            bottom: 96px;
            z-index: 50;
            width: 56px;
            height: 56px;
            border-radius: 50%;
            background: linear-gradient(135deg, #1C1C1E, #0A2E1C);
            border: 2px solid #FFD700;
            box-shadow: 0 4px 20px rgba(255, 215, 0, .3), inset 0 1px 0 rgba(255, 255, 255, .08);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.5rem;
            opacity: .7;
            animation: fab-float 3s ease-in-out infinite;
            transition: all var(--transition);
            cursor: pointer;
        }
        .fab-royal:hover {
            opacity: 1;
            transform: scale(1.1);
            box-shadow: 0 8px 32px rgba(255, 215, 0, .55), inset 0 1px 0 rgba(255, 255, 255, .12);
        }
        .fab-royal:active {
            transform: scale(.95) translateY(2px);
            box-shadow: 0 2px 10px rgba(255, 215, 0, .3);
        }
        .fab-royal .fab-dot {
            position: absolute;
            top: -3px;
            right: -3px;
            width: 14px;
            height: 14px;
            border-radius: 50%;
            background: #D32F2F;
            border: 2px solid #0A2E1C;
            animation: fab-blink 1.4s infinite;
        }
        @keyframes fab-float {
            0%, 100% { transform: translateY(0); }
            50% { transform: translateY(-8px); }
        }
        @keyframes fab-blink {
            0%, 100% { opacity: 1; transform: scale(1); }
            50% { opacity: .4; transform: scale(.75); }
        }
        /* Responsive */
        @media (max-width: 1024px) {
            .page-banner-inner {
                grid-template-columns: 1fr;
                min-height: 0;
            }
            .banner-visual {
                max-width: 520px;
            }
            .feature-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .steps-list {
                grid-template-columns: repeat(2, 1fr);
            }
            .testimonial-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
            }
            .value-grid {
                grid-template-columns: 1fr;
            }
            .value-image {
                max-width: 520px;
            }
            .stats-row {
                grid-template-columns: repeat(2, 1fr);
            }
        }
        @media (max-width: 768px) {
            .nav-toggle-label {
                display: flex;
            }
            .nav-toggle:checked~.nav-toggle-label span:nth-child(1) {
                transform: rotate(45deg) translate(5px, 5px);
            }
            .nav-toggle:checked~.nav-toggle-label span:nth-child(2) {
                opacity: 0;
            }
            .nav-toggle:checked~.nav-toggle-label span:nth-child(3) {
                transform: rotate(-45deg) translate(5px, -5px);
            }
            .nav-menu {
                position: absolute;
                top: 70px;
                left: 0;
                right: 0;
                background: rgba(10, 46, 28, .98);
                backdrop-filter: blur(18px);
                flex-direction: column;
                align-items: stretch;
                gap: 0;
                padding: 12px 20px 20px;
                border-bottom: 1px solid var(--border-soft);
                box-shadow: 0 20px 40px rgba(0, 0, 0, .35);
                display: none;
                max-height: 0;
                overflow: hidden;
                transition: max-height .35s ease;
            }
            .nav-toggle:checked~.nav-menu {
                display: flex;
                max-height: 400px;
            }
            .nav-menu li {
                border-bottom: 1px solid var(--border-soft);
            }
            .nav-menu li:last-child {
                border-bottom: none;
            }
            .nav-menu a {
                display: block;
                padding: 14px 4px;
                font-size: .98rem;
            }
            .nav-menu a::after {
                display: none;
            }
            .nav-actions {
                margin-left: auto;
            }
            .nav-login {
                display: none;
            }
            .feature-grid {
                grid-template-columns: 1fr;
            }
            .scenario-grid {
                grid-template-columns: 1fr;
            }
            .steps-list {
                grid-template-columns: 1fr;
            }
            .testimonial-grid {
                grid-template-columns: 1fr;
            }
            .stats-row {
                grid-template-columns: repeat(2, 1fr);
                gap: 10px;
            }
            .stat-item .stat-number {
                font-size: 1.4rem;
            }
            .section {
                padding: var(--space-lg) 0;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 20px;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
            }
            .banner-actions {
                flex-direction: column;
            }
            .btn-lg {
                width: 100%;
            }
        }
        @media (max-width: 520px) {
            .nav-logo {
                font-size: 1rem;
            }
            .nav-logo .logo-icon {
                width: 34px;
                height: 34px;
                font-size: 1rem;
            }
            .page-banner {
                padding: 36px 0 48px;
            }
            .page-banner h1 {
                font-size: 1.6rem;
            }
            .banner-actions {
                gap: 10px;
            }
            .btn {
                font-size: .9rem;
                padding: 10px 20px;
                min-height: 42px;
            }
            .btn-lg {
                font-size: .95rem;
                padding: 13px 24px;
                min-height: 48px;
            }
            .stats-row {
                grid-template-columns: 1fr 1fr;
                gap: 8px;
            }
            .stat-item {
                padding: 14px 10px;
            }
            .stat-item .stat-number {
                font-size: 1.2rem;
            }
            .stat-item .stat-label {
                font-size: .75rem;
            }
            .fab-royal {
                width: 48px;
                height: 48px;
                bottom: 80px;
                left: 12px;
                font-size: 1.3rem;
            }
        }

/* roulang page: category3 */
:root {
            --bg-deep: #0A2E1C;
            --bg-forest: #123E25;
            --bg-darker: #062315;
            --accent-gold: #FFD700;
            --accent-red: #E53935;
            --text-white: #FFFFFF;
            --text-pale: #D1F2EB;
            --text-muted: #9FB8AE;
            --border-gold: rgba(255, 215, 0, .35);
            --border-soft: rgba(255,255,255,.1);
            --radius-sm: 10px;
            --radius-md: 16px;
            --radius-lg: 22px;
            --shadow-card: 0 12px 32px rgba(0,0,0,.25);
            --shadow-gold: 0 6px 20px rgba(255,215,0,.18);
            --container: 1180px;
            --space-xs: .5rem;
            --space-sm: 1rem;
            --space-md: 1.8rem;
            --space-lg: 3rem;
            --space-xl: 4.5rem;
            --font-base: 'Be Vietnam Pro', system-ui, -apple-system, 'Segoe UI', Roboto, 'Helvetica Neue', sans-serif;
            --transition: .25s ease;
        }

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

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

        body {
            font-family: var(--font-base);
            font-size: 16px;
            line-height:: 1.6;
        color: var(--text-white);
        min-height: 100vh;
        overflow-x: hidden;
        -webkit-font-smoothing: antialiased;
        -moz-osx-font-smoothing: grayscale;
        background: var(--bg-deep);
    }
    img { max-width: 100%; height: auto; display: block; }
    a { color: var(--accent-gold); text-decoration: none; transition: color var(--transition); }
    a:hover { color: #FFED8A; }
    a:focus-visible,
    button:focus-visible,
    input:focus-visible,
    label:focus-visible {
        outline: 3px solid rgba(255, 215, 0, .65);
        outline-offset: 2px;
        border-radius: 4px;
    }
    button,
    input {
        font-family: inherit;
        border: none;
        background: none;
        color: inherit;
        cursor: pointer;
    }
    .container {
        width: 100%;
        max-width: var(--container);
        margin: 0 auto;
        padding: 0 clamp(16px, 2.4vw, 28px);
    }
    .btn {
        display: inline-flex;
        align-items: center;
        justify-content: center;
        gap: 8px;
        font-weight: 700;
        font-size: .95rem;
        letter-spacing: .02em;
        border-radius: 50px;
        padding: 12px 28px;
        line-height: 1.2;
        transition: all var(--transition);
        cursor: pointer;
        text-align: center;
        min-height: 46px;
        white-space: nowrap;
    }
    .btn-primary {
        background: linear-gradient(135deg, #FFD700 0%, #FFB800 55%, #E0A000 100%);
        color: #0A2E1C;
        box-shadow: 0 8px 24px rgba(255, 215, 0, .28);
    }
    .btn-primary:hover {
        transform: translateY(-2px);
        box-shadow: 0 12px 32px rgba(255, 215, 0, .4);
        color: #0A2E1C;
    }
    .btn-primary:active {
        transform: translateY(0) scale(.98);
        box-shadow: 0 6px 16px rgba(255, 215, 0, .25);
    }
    .btn-ghost {
        background: transparent;
        color: var(--text-white);
        border: 1px solid var(--border-soft);
    }
    .btn-ghost:hover {
        border-color: var(--accent-gold);
        background: rgba(255, 215, 0, .1);
        color: var(--accent-gold);
    }
    .btn-red {
        background: linear-gradient(135deg, #E53935, #B71C1C);
        color: #fff;
        box-shadow: 0 8px 24px rgba(229, 57, 53, .25);
    }
    .btn-red:hover {
        transform: translateY(-2px);
        box-shadow: 0 12px 32px rgba(229, 57, 53, .35);
    }
    .btn-sm {
        padding: 9px 18px;
        min-height: 38px;
        font-size: .85rem;
        border-radius: 30px;
    }
    .btn-lg {
        padding: 15px 34px;
        min-height: 54px;
        font-size: 1.02rem;
        border-radius: 60px;
    }
    .site-header {
        position: sticky;
        top: 0;
        z-index: 100;
        background: rgba(10, 46, 28, .92);
        backdrop-filter: blur(18px);
        -webkit-backdrop-filter: blur(18px);
        border-bottom: 1px solid var(--border-soft);
        box-shadow: 0 4px 20px rgba(0,0,0,.18);
    }
    .nav-wrap {
        display: flex;
        align-items: center;
        justify-content: space-between;
        gap: var(--space-sm);
        min-height: 70px;
    }
    .nav-logo {
        display: flex;
        align-items: center;
        gap: 10px;
        font-weight: 800;
        font-size: 1.15rem;
        color: var(--text-white);
        letter-spacing: .01em;
        white-space: nowrap;
    }
    .nav-logo .logo-icon {
        width: 40px;
        height: 40px;
        background: linear-gradient(135deg, #FFD700, #FFB800);
        display: inline-flex;
        align-items: center;
        justify-content: center;
        border-radius: 50%;
        color: #0A2E1C;
        font-size: 1.25rem;
        box-shadow: 0 4px 14px rgba(255, 215, 0, .35);
    }
    .nav-menu {
        display: flex;
        align-items: center;
        gap: clamp(10px, 1.7vw, 26px);
        list-style: none;
    }
    .nav-menu a {
        color: var(--text-pale);
        font-weight: 500;
        font-size: .93rem;
        padding: 8px 4px;
        position: relative;
        white-space: nowrap;
    }
    .nav-menu a::after {
        content: "";
        position: absolute;
        left: 0;
        bottom: 0;
        width: 0;
        height: 2px;
        background: var(--accent-gold);
        transition: width var(--transition);
        border-radius: 2px;
    }
    .nav-menu a:hover::after,
    .nav-menu a.active::after {
        width: 100%;
    }
    .nav-menu a.active {
        color: var(--accent-gold);
    }
    .nav-actions {
        display: flex;
        align-items: center;
        gap: 10px;
    }
    .nav-login {
        color: var(--text-white);
        font-weight: 600;
        font-size: .88rem;
        padding: 8px 12px;
        border-radius: 30px;
        transition: background var(--transition);
        white-space: nowrap;
    }
    .nav-login:hover {
        background: rgba(255, 255, 255, .08);
        color: #fff;
    }
    .nav-toggle {
        display: none;
    }
    .nav-toggle-label {
        display: none;
        flex-direction: column;
        gap: 5px;
        cursor: pointer;
        padding: 8px;
        border-radius: 8px;
        transition: background var(--transition);
    }
    .nav-toggle-label:hover {
        background: rgba(255, 255, 255, .08);
    }
    .nav-toggle-label span {
        display: block;
        width: 24px;
        height: 2px;
        background: var(--text-white);
        border-radius: 2px;
        transition: all .3s ease;
    }
    /* Hero category */
    .category-hero {
        position: relative;
        padding: clamp(50px, 7vw, 90px) 0 clamp(60px, 8vw, 110px);
        background: url('/assets/images/backpic/back-3.jpg') center center / cover no-repeat;
        background-color: var(--bg-darker);
        isolation: isolate;
        overflow: hidden;
    }
    .category-hero::before {
        content: "";
        position: absolute;
        inset: 0;
        background: linear-gradient(135deg, rgba(10,46,28,.92) 0%, rgba(10,46,28,.68) 45%, rgba(6,35,21,.85) 100%);
        z-index: -1;
    }
    .category-hero-inner {
        display: grid;
        grid-template-columns: 1.1fr .9fr;
        gap: clamp(28px, 4vw, 60px);
        align-items: center;
    }
    .hero-crumb {
        display: inline-flex;
        align-items: center;
        gap: 8px;
        color: var(--accent-gold);
        font-weight: 600;
        font-size: .85rem;
        margin-bottom: var(--space-sm);
        background: rgba(255, 215, 0, .08);
        padding: 6px 14px;
        border-radius: 30px;
        border: 1px solid rgba(255, 215, 0, .25);
    }
    .hero-crumb i {
        font-size: .7rem;
    }
    .category-hero h1 {
        font-size: clamp(2rem, 4.2vw, 3.3rem);
        line-height: 1.2;
        font-weight: 800;
        letter-spacing: -.02em;
        margin-bottom: var(--space-sm);
        color: var(--text-white);
    }
    .category-hero .lead {
        font-size: clamp(1rem, 1.6vw, 1.2rem);
        color: var(--text-pale);
        line-height: 1.7;
        max-width: 560px;
        margin-bottom: var(--space-md);
    }
    .hero-actions {
        display: flex;
        flex-wrap: wrap;
        gap: 12px;
        margin-bottom: var(--space-md);
    }
    .hero-stats {
        display: flex;
        flex-wrap: wrap;
        gap: 20px;
        margin-top: var(--space-sm);
    }
    .hero-stat {
        display: flex;
        flex-direction: column;
        gap: 4px;
    }
    .hero-stat strong {
        font-size: 1.5rem;
        font-weight: 800;
        color: var(--accent-gold);
    }
    .hero-stat span {
        font-size: .85rem;
        color: var(--text-muted);
    }
    .hero-panel {
        background: rgba(6, 35, 21, .72);
        border: 1px solid var(--border-gold);
        border-radius: var(--radius-lg);
        padding: clamp(20px, 3vw, 32px);
        box-shadow: 0 16px 40px rgba(0,0,0,.35);
        backdrop-filter: blur(12px);
        -webkit-backdrop-filter: blur(12px);
    }
    .hero-panel-title {
        display: flex;
        align-items: center;
        gap: 10px;
        font-weight: 700;
        font-size: 1.1rem;
        color: var(--text-white);
        margin-bottom: var(--space-sm);
    }
    .hero-panel-title i {
        color: var(--accent-gold);
    }
    .hero-rank {
        list-style: none;
        display: flex;
        flex-direction: column;
        gap: 10px;
    }
    .hero-rank li {
        display: flex;
        align-items: center;
        gap: 12px;
        padding: 10px 12px;
        background: rgba(255, 255, 255, .04);
        border-radius: var(--radius-sm);
        border: 1px solid var(--border-soft);
        transition: background var(--transition), border-color var(--transition);
    }
    .hero-rank li:hover {
        background: rgba(255, 215, 0, .06);
        border-color: var(--border-gold);
    }
    .rank-num {
        width: 28px;
        height: 28px;
        border-radius: 50%;
        background: linear-gradient(135deg, #FFD700, #E0A000);
        color: #0A2E1C;
        font-weight: 800;
        font-size: .8rem;
        display: inline-flex;
        align-items: center;
        justify-content: center;
        flex-shrink: 0;
    }
    .rank-info {
        flex: 1;
        min-width: 0;
    }
    .rank-info strong {
        display: block;
        font-size: .95rem;
        color: var(--text-white);
        font-weight: 600;
    }
    .rank-info span {
        font-size: .78rem;
        color: var(--text-muted);
    }
    .rank-badge {
        font-size: .7rem;
        font-weight: 700;
        padding: 4px 10px;
        border-radius: 20px;
        background: rgba(229, 57, 53, .15);
        color: #FF8A80;
        border: 1px solid rgba(229, 57, 53, .3);
        white-space: nowrap;
    }
    /* general section */
    .section {
        padding: var(--space-xl) 0;
    }
    .section-alt {
        background: var(--bg-darker);
    }
    .section-head {
        display: flex;
        align-items: flex-end;
        justify-content: space-between;
        gap: 20px;
        margin-bottom: var(--space-lg);
    }
    .section-title {
        font-size: clamp(1.6rem, 3vw, 2.3rem);
        font-weight: 800;
        letter-spacing: -.01em;
        line-height: 1.25;
        color: var(--text-white);
    }
    .section-title span {
        color: var(--accent-gold);
    }
    .section-sub {
        color: var(--text-muted);
        font-size: 1rem;
        max-width: 620px;
        margin-top: var(--space-xs);
    }
    .text-left {
        text-align: left;
    }
    .section-more {
        color: var(--accent-gold);
        font-weight: 600;
        font-size: .9rem;
        white-space: nowrap;
    }
    /* top game list */
    .game-list {
        display: flex;
        flex-direction: column;
        gap: 18px;
    }
    .game-item {
        display: grid;
        grid-template-columns: 140px 1fr auto;
        gap: 20px;
        align-items: center;
        background: rgba(255, 255, 255, .03);
        border: 1px solid var(--border-soft);
        border-radius: var(--radius-lg);
        padding: 18px;
        transition: transform var(--transition), border-color var(--transition), background var(--transition);
    }
    .game-item:hover {
        background: rgba(255, 255, 255, .06);
        border-color: var(--border-gold);
        transform: translateY(-3px);
    }
    .game-thumb {
        width: 140px;
        height: 140px;
        object-fit: cover;
        border-radius: var(--radius-md);
        border: 1px solid var(--border-soft);
        box-shadow: var(--shadow-card);
    }
    .game-info {
        min-width: 0;
    }
    .game-info h3 {
        font-size: 1.3rem;
        font-weight: 700;
        color: var(--text-white);
        margin-bottom: 6px;
    }
    .game-tags {
        display: flex;
        flex-wrap: wrap;
        gap: 8px;
        margin-bottom: 8px;
    }
    .game-tag {
        font-size: .72rem;
        font-weight: 600;
        padding: 3px 10px;
        border-radius: 20px;
        background: rgba(255, 215, 0, .1);
        color: var(--accent-gold);
        border: 1px solid rgba(255, 215, 0, .2);
    }
    .game-desc {
        color: var(--text-pale);
        font-size: .9rem;
        line-height: 1.6;
        margin-bottom: 8px;
    }
    .game-meta {
        display: flex;
        flex-wrap: wrap;
        gap: 14px;
        font-size: .8rem;
        color: var(--text-muted);
    }
    .game-meta i {
        color: var(--accent-gold);
        margin-right: 4px;
    }
    .game-action {
        text-align: right;
        flex-shrink: 0;
    }
    .game-action .btn {
        margin-bottom: 8px;
    }
    .game-rating {
        font-size: .85rem;
        color: var(--accent-gold);
        font-weight: 600;
    }
    .game-rating i {
        margin-right: 4px;
    }
    /* feature grid */
    .feature-grid {
        display: grid;
        grid-template-columns: repeat(auto-fit, minmax(230px, 1fr));
        gap: 18px;
    }
    .feature-card {
        background: rgba(255, 255, 255, .04);
        border: 1px solid var(--border-soft);
        border-radius: var(--radius-md);
        padding: 22px;
        transition: border-color var(--transition), background var(--transition);
    }
    .feature-card:hover {
        background: rgba(255, 255, 255, .07);
        border-color: var(--border-gold);
    }
    .feature-icon {
        width: 46px;
        height: 46px;
        border-radius: 12px;
        background: linear-gradient(135deg, #FFD700, #E0A000);
        display: flex;
        align-items: center;
        justify-content: center;
        color: #0A2E1C;
        font-size: 1.2rem;
        margin-bottom: 14px;
        box-shadow: var(--shadow-gold);
    }
    .feature-card h3 {
        font-size: 1.05rem;
        font-weight: 700;
        color: var(--text-white);
        margin-bottom: 8px;
    }
    .feature-card p {
        color: var(--text-muted);
        font-size: .9rem;
        line-height: 1.6;
    }
    /* comparison table */
    .compare-wrap {
        overflow-x: auto;
        border-radius: var(--radius-md);
        border: 1px solid var(--border-soft);
        background: rgba(255, 255, 255, .02);
    }
    .compare-table {
        width: 100%;
        border-collapse: collapse;
        min-width: 640px;
    }
    .compare-table th,
    .compare-table td {
        padding: 12px 16px;
        text-align: left;
        border-bottom: 1px solid var(--border-soft);
        font-size: .85rem;
        color: var(--text-pale);
    }
    .compare-table th {
        background: rgba(255, 215, 0, .06);
        color: var(--accent-gold);
        font-weight: 700;
        white-space: nowrap;
    }
    .compare-table td:first-child {
        font-weight: 600;
        color: var(--text-white);
    }
    .compare-table tr:last-child td {
        border-bottom: none;
    }
    .compare-table .check {
        color: #6FCF97;
    }
    .compare-table .cross {
        color: var(--accent-red);
    }
    /* steps */
    .steps {
        display: grid;
        grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
        gap: 20px;
        counter-reset: step;
    }
    .step-item {
        position: relative;
        padding: 24px;
        background: rgba(255, 255, 255, .04);
        border: 1px solid var(--border-soft);
        border-radius: var(--radius-md);
        counter-increment: step;
        transition: border-color var(--transition);
    }
    .step-item:hover {
        border-color: var(--border-gold);
    }
    .step-item::before {
        content: counter(step);
        position: absolute;
        top: -14px;
        left: 20px;
        width: 32px;
        height: 32px;
        background: linear-gradient(135deg, #FFD700, #E0A000);
        color: #0A2E1C;
        border-radius: 50%;
        display: flex;
        align-items: center;
        justify-content: center;
        font-weight: 800;
        font-size: .95rem;
        box-shadow: var(--shadow-gold);
    }
    .step-item h3 {
        font-size: 1.05rem;
        font-weight: 700;
        color: var(--text-white);
        margin: 10px 0 8px;
    }
    .step-item p {
        color: var(--text-muted);
        font-size: .88rem;
        line-height: 1.6;
    }
    /* FAQ */
    .faq-list {
        display: flex;
        flex-direction: column;
        gap: 12px;
        max-width: 800px;
        margin: 0 auto;
    }
    .faq-item {
        background: rgba(255, 255, 255, .04);
        border: 1px solid var(--border-soft);
        border-radius: var(--radius-md);
        overflow: hidden;
        transition: border-color var(--transition);
    }
    .faq-item:hover {
        border-color: var(--border-gold);
    }
    .faq-question {
        width: 100%;
        display: flex;
        align-items: center;
        justify-content: space-between;
        gap: 16px;
        padding: 18px 22px;
        font-size: 1rem;
        font-weight: 600;
        color: var(--text-white);
        text-align: left;
        transition: color var(--transition);
    }
    .faq-question:hover {
        color: var(--accent-gold);
    }
    .faq-question i {
        transition: transform var(--transition);
        color: var(--accent-gold);
        font-size: .85rem;
    }
    .faq-answer {
        max-height: 0;
        overflow: hidden;
        transition: max-height .35s ease, padding .35s ease;
        padding: 0 22px;
    }
    .faq-item.open .faq-question i {
        transform: rotate(180deg);
    }
    .faq-item.open .faq-answer {
        max-height: 300px;
        padding: 0 22px 18px;
    }
    .faq-answer p {
        color: var(--text-pale);
        font-size: .9rem;
        line-height: 1.7;
    }
    /* CTA */
    .cta-section {
        position: relative;
        padding: var(--space-xl) 0;
        background: url('/assets/images/backpic/back-2.jpg') center center / cover no-repeat;
        background-color: var(--bg-darker);
        isolation: isolate;
        overflow: hidden;
    }
    .cta-section::before {
        content: "";
        position: absolute;
        inset: 0;
        background: linear-gradient(135deg, rgba(10,46,28,.9), rgba(6,35,21,.82));
        z-index: -1;
    }
    .cta-inner {
        text-align: center;
        max-width: 720px;
        margin: 0 auto;
    }
    .cta-inner h2 {
        font-size: clamp(1.8rem, 3.5vw, 2.6rem);
        font-weight: 800;
        color: var(--text-white);
        margin-bottom: 14px;
    }
    .cta-inner p {
        color: var(--text-pale);
        font-size: 1rem;
        line-height: 1.7;
        margin-bottom: var(--space-md);
    }
    .cta-actions {
        display: flex;
        flex-wrap: wrap;
        justify-content: center;
        gap: 14px;
    }
    /* Footer */
    .site-footer {
        background: var(--bg-darker);
        border-top: 1px solid var(--border-soft);
        padding: var(--space-xl) 0 var(--space-md);
    }
    .footer-grid {
        display: grid;
        grid-template-columns: 1.4fr repeat(3, 1fr);
        gap: 30px;
        margin-bottom: var(--space-lg);
    }
    .footer-brand p {
        color: var(--text-muted);
        font-size: .9rem;
        line-height: 1.7;
        margin-top: 12px;
        max-width: 320px;
    }
    .footer-col h4 {
        font-size: 1rem;
        font-weight: 700;
        color: var(--accent-gold);
        margin-bottom: 14px;
    }
    .footer-col a {
        display: block;
        color: var(--text-pale);
        font-size: .9rem;
        padding: 5px 0;
        transition: color var(--transition);
    }
    .footer-col a:hover {
        color: var(--accent-gold);
    }
    .footer-bottom {
        border-top: 1px solid var(--border-soft);
        padding-top: 18px;
        display: flex;
        flex-wrap: wrap;
        gap: 12px;
        align-items: center;
        justify-content: space-between;
        color: var(--text-muted);
        font-size: .85rem;
    }
    .footer-bottom a {
        color: var(--accent-gold);
    }
    /* FAB */
    .fab {
        position: fixed;
        left: 16px;
        bottom: 88px;
        z-index: 50;
        width: 56px;
        height: 56px;
        border-radius: 50%;
        background: linear-gradient(145deg, #1C1C1E, #0A0A0A);
        border: 2px solid var(--accent-gold);
        box-shadow: 0 4px 20px rgba(255, 215, 0, .3), inset 0 1px 0 rgba(255,255,255,.1);
        display: flex;
        align-items: center;
        justify-content: center;
        color: var(--accent-gold);
        font-size: 1.4rem;
        cursor: pointer;
        transition: transform var(--transition), box-shadow var(--transition), opacity var(--transition);
        animation: fabFloat 3s ease-in-out infinite;
        opacity: .7;
    }
    .fab::after {
        content: "";
        position: absolute;
        top: 2px;
        right: 2px;
        width: 10px;
        height: 10px;
        border-radius: 50%;
        background: var(--accent-red);
        box-shadow: 0 0 6px rgba(229, 57, 53, .8);
        animation: blinkDot 2s infinite;
    }
    .fab:hover {
        transform: scale(1.1);
        opacity: 1;
        box-shadow: 0 6px 28px rgba(255, 215, 0, .55);
    }
    .fab:active {
        transform: scale(.95) translateY(1px);
    }
    @keyframes fabFloat {
        0%, 100% { transform: translateY(0); }
        50% { transform: translateY(-6px); }
    }
    @keyframes blinkDot {
        0%, 100% { opacity: 1; }
        50% { opacity: .3; }
    }
    /* Responsive */
    @media screen and (max-width: 1024px) {
        .category-hero-inner {
            grid-template-columns: 1fr;
        }
        .hero-panel {
            max-width: 560px;
            margin: 0 auto;
        }
        .footer-grid {
            grid-template-columns: repeat(2, 1fr);
        }
    }
    @media screen and (max-width: 768px) {
        .nav-wrap {
            flex-wrap: wrap;
        }
        .nav-toggle-label {
            display: flex;
            order: 3;
        }
        .nav-menu {
            flex-basis: 100%;
            flex-direction: column;
            align-items: flex-start;
            gap: 0;
            max-height: 0;
            overflow: hidden;
            transition: max-height .35s ease, padding .35s ease;
            padding: 0;
        }
        .nav-toggle:checked ~ .nav-menu {
            max-height: 400px;
            padding: 12px 0 20px;
        }
        .nav-menu li {
            width: 100%;
        }
        .nav-menu a {
            display: block;
            width: 100%;
            padding: 10px 4px;
        }
        .nav-actions {
            order: 2;
        }
        .game-item {
            grid-template-columns: 1fr;
            gap: 12px;
        }
        .game-thumb {
            width: 100%;
            height: auto;
            max-height: 200px;
        }
        .game-action {
            text-align: left;
        }
        .footer-grid {
            grid-template-columns: 1fr;
            gap: 22px;
        }
        .section-head {
            flex-direction: column;
            align-items: flex-start;
        }
        .compare-table {
            min-width: 480px;
        }
    }
    @media screen and (max-width: 520px) {
        .category-hero {
            padding: 40px 0 50px;
        }
        .hero-actions {
            flex-direction: column;
        }
        .hero-stats {
            gap: 12px;
        }
        .fab {
            width: 48px;
            height: 48px;
            font-size: 1.1rem;
            bottom: 80px;
            left: 12px;
        }
        .btn {
            padding: 10px 20px;
            font-size: .85rem;
        }
        .footer-bottom {
            flex-direction: column;
            align-items: flex-start;
        }
    }