/* roulang page: index */
:root {
            --bg-950: #07170E;
            --bg-900: #0A2E1C;
            --bg-800: #123E25;
            --bg-700: #17482B;
            --gold: #FFD700;
            --gold-soft: #F5C518;
            --red: #D32F2F;
            --mint: #D1F2EB;
            --mint-soft: #E6F7F1;
            --white: #FFFFFF;
            --slate: #C5D8CE;
            --border-gold: rgba(255, 215, 0, 0.25);
            --shadow-gold: 0 8px 28px rgba(255, 215, 0, 0.12);
            --radius-sm: 10px;
            --radius-md: 18px;
            --radius-lg: 26px;
            --container: 1200px;
            --header-height: 76px;
            --font: 'Be Vietnam Pro', sans-serif;
        }

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

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

        body {
            margin: 0;
            font-family: var(--font);
            background-color: var(--bg-950);
            color: var(--white);
            line-height: 1.6;
            font-size: 16px;
            overflow-x: hidden;
        }

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

        a {
            text-decoration: none;
            color: inherit;
            transition: color .2s ease, background .2s ease, border-color .2s ease, box-shadow .2s ease, transform .2s ease;
        }

        button,
        input,
        select,
        textarea {
            font: inherit;
        }

        button:focus-visible,
        a:focus-visible,
        input:focus-visible,
        textarea:focus-visible,
        summary:focus-visible {
            outline: 2px solid var(--gold);
            outline-offset: 3px;
            border-radius: 6px;
        }

        .container {
            width: 100%;
            max-width: var(--container);
            margin: 0 auto;
            padding-left: 24px;
            padding-right: 24px;
        }

        /* Header + Navigation */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            height: var(--header-height);
            z-index: 100;
            background: rgba(7, 23, 14, 0.92);
            backdrop-filter: blur(14px);
            -webkit-backdrop-filter: blur(14px);
            border-bottom: 1px solid rgba(255, 215, 0, 0.12);
            transition: background .25s ease, box-shadow .25s ease;
        }

        .site-header.scrolled {
            background: rgba(7, 23, 14, 0.98);
            box-shadow: 0 8px 20px rgba(0, 0, 0, 0.35);
        }

        .nav-wrap {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: var(--header-height);
            gap: 22px;
        }

        .logo {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            font-weight: 800;
            color: var(--white);
            letter-spacing: .01em;
            flex-shrink: 0;
        }

        .logo-icon {
            width: 42px;
            height: 42px;
            border-radius: 12px;
            background: radial-gradient(circle at 30% 25%, #FFE55C, #B8860B);
            display: inline-flex;
            align-items: center;
            justify-content: center;
            color: #0A2E1C;
            font-size: 1.25rem;
            font-weight: 800;
            box-shadow: 0 4px 14px rgba(255, 215, 0, 0.3);
        }

        .logo-text {
            display: flex;
            flex-direction: column;
            line-height: 1.1;
        }

        .logo-text strong {
            font-size: 1.08rem;
            color: #FFE55C;
            letter-spacing: .02em;
        }

        .logo-text span {
            font-size: .72rem;
            color: var(--mint);
            font-weight: 500;
        }

        .nav-links {
            display: flex;
            align-items: center;
            gap: 4px;
            list-style: none;
            margin: 0;
            padding: 0;
        }

        .nav-links a {
            position: relative;
            display: inline-flex;
            align-items: center;
            padding: 10px 14px;
            border-radius: 999px;
            color: var(--mint-soft);
            font-weight: 600;
            font-size: .95rem;
        }

        .nav-links a:hover {
            color: var(--gold);
            background: rgba(255, 215, 0, 0.08);
        }

        .nav-links a.active {
            color: var(--gold);
            background: rgba(255, 215, 0, 0.12);
        }

        .nav-links a.active::after {
            content: "";
            position: absolute;
            left: 14px;
            right: 14px;
            bottom: 4px;
            height: 2px;
            border-radius: 99px;
            background: var(--gold);
        }

        .nav-actions {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-shrink: 0;
        }

        .btn-login {
            padding: 10px 16px;
            border-radius: 999px;
            font-weight: 700;
            font-size: .93rem;
            color: var(--mint);
            background: transparent;
            border: 1px solid rgba(209, 242, 235, 0.35);
        }

        .btn-login:hover {
            border-color: var(--gold);
            color: var(--gold);
            background: rgba(255, 215, 0, 0.05);
        }

        .btn-signup {
            padding: 10px 18px;
            border-radius: 999px;
            font-weight: 800;
            font-size: .93rem;
            color: #0A2E1C;
            background: linear-gradient(135deg, #FFE55C, #F5C518);
            box-shadow: 0 6px 16px rgba(255, 215, 0, 0.24);
            border: 1px solid #FFE55C;
        }

        .btn-signup:hover {
            transform: translateY(-2px);
            box-shadow: 0 10px 22px rgba(255, 215, 0, 0.34);
        }

        .menu-toggle {
            display: none;
            width: 44px;
            height: 44px;
            border-radius: 12px;
            background: rgba(255, 215, 0, 0.08);
            border: 1px solid var(--border-gold);
            color: var(--gold);
            font-size: 1.2rem;
            align-items: center;
            justify-content: center;
            cursor: pointer;
        }

        .mobile-menu {
            display: none;
            position: fixed;
            top: var(--header-height);
            left: 0;
            right: 0;
            background: rgba(7, 23, 14, 0.98);
            backdrop-filter: blur(16px);
            border-bottom: 1px solid var(--border-gold);
            padding: 20px 24px 30px;
            z-index: 99;
        }

        .mobile-menu.is-open {
            display: block;
        }

        .mobile-menu a {
            display: block;
            padding: 14px 16px;
            border-radius: 14px;
            color: var(--mint-soft);
            font-weight: 600;
            font-size: 1rem;
            margin-bottom: 6px;
        }

        .mobile-menu a:hover,
        .mobile-menu a.active {
            background: rgba(255, 215, 0, 0.12);
            color: var(--gold);
        }

        /* Hero */
        .hero {
            position: relative;
            min-height: 92vh;
            display: flex;
            align-items: center;
            padding: calc(var(--header-height) + 48px) 0 80px;
            background-color: var(--bg-950);
            overflow: hidden;
        }

        .hero-bg {
            position: absolute;
            inset: 0;
            background-image: url('/assets/images/backpic/back-1.png');
            background-size: cover;
            background-position: center;
            opacity: .34;
            filter: brightness(.7) saturate(.8);
        }

        .hero-overlay {
            position: absolute;
            inset: 0;
            background: linear-gradient(90deg, rgba(7,23,14,.95) 0%, rgba(7,23,14,.75) 45%, rgba(7,23,14,.35) 100%);
        }

        .hero-content {
            position: relative;
            z-index: 2;
            max-width: 820px;
            text-align: left;
        }

        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 8px 14px;
            border-radius: 999px;
            background: rgba(255, 215, 0, 0.12);
            border: 1px solid rgba(255, 215, 0, 0.45);
            color: #FFE55C;
            font-weight: 700;
            font-size: .85rem;
            letter-spacing: .02em;
            margin-bottom: 22px;
        }

        .hero h1 {
            font-size: clamp(2rem, 5vw, 4rem);
            line-height: 1.12;
            font-weight: 800;
            color: var(--white);
            margin: 0 0 18px;
            letter-spacing: -.02em;
            text-shadow: 0 4px 20px rgba(0,0,0,0.45);
        }

        .hero-desc {
            font-size: 1.1rem;
            line-height: 1.7;
            color: var(--mint);
            max-width: 720px;
            margin: 0 0 30px;
        }

        .hero-actions {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 14px;
            margin-bottom: 40px;
        }

        .btn-gold {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            padding: 13px 24px;
            border-radius: 999px;
            font-weight: 800;
            font-size: 1rem;
            color: #0A2E1C;
            background: linear-gradient(135deg, #FFE55C, #F5C518);
            border: 1px solid #FFE55C;
            box-shadow: 0 10px 24px rgba(255, 215, 0, 0.25);
        }

        .btn-gold:hover {
            transform: translateY(-3px);
            box-shadow: 0 14px 30px rgba(255, 215, 0, 0.35);
        }

        .btn-outline {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            padding: 13px 22px;
            border-radius: 999px;
            font-weight: 700;
            font-size: 1rem;
            color: var(--gold);
            background: rgba(255, 215, 0, 0.06);
            border: 1px solid rgba(255, 215, 0, 0.55);
        }

        .btn-outline:hover {
            background: rgba(255, 215, 0, 0.12);
            border-color: var(--gold);
            transform: translateY(-2px);
        }

        .btn-red {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            padding: 13px 24px;
            border-radius: 999px;
            font-weight: 800;
            font-size: 1rem;
            color: #fff;
            background: linear-gradient(135deg, #D32F2F, #B71C1C);
            border: 1px solid #FF8A80;
            box-shadow: 0 10px 24px rgba(211,47,47,.25);
        }

        .btn-red:hover {
            transform: translateY(-3px);
            box-shadow: 0 14px 30px rgba(211,47,47,.35);
        }

        .hero-stats {
            display: grid;
            grid-template-columns: repeat(3, minmax(0,1fr));
            gap: 16px;
            max-width: 680px;
        }

        .stat-card {
            background: rgba(255, 255, 255, 0.06);
            border: 1px solid rgba(255, 215, 0, 0.24);
            border-radius: var(--radius-md);
            padding: 16px 18px;
            backdrop-filter: blur(8px);
        }

        .stat-card .stat-num {
            display: block;
            font-size: 1.8rem;
            font-weight: 800;
            color: #FFE55C;
            line-height: 1.1;
            margin-bottom: 4px;
        }

        .stat-card .stat-label {
            font-size: .85rem;
            color: var(--mint);
            font-weight: 500;
        }

        /* General Sections */
        section {
            padding: 88px 0;
            position: relative;
        }

        .section-label {
            display: inline-flex;
            align-items: center;
            gap: 7px;
            color: var(--gold);
            text-transform: uppercase;
            letter-spacing: .12em;
            font-weight: 700;
            font-size: .78rem;
            margin-bottom: 14px;
        }

        .section-title {
            font-size: clamp(1.8rem, 3.4vw, 2.7rem);
            line-height: 1.22;
            font-weight: 800;
            color: var(--white);
            margin: 0 0 16px;
            letter-spacing: -.01em;
        }

        .section-desc {
            font-size: 1.02rem;
            line-height: 1.7;
            color: var(--slate);
            max-width: 820px;
            margin: 0 0 40px;
        }

        .bg-mid {
            background: var(--bg-900);
            border-top: 1px solid rgba(255,215,0,.08);
            border-bottom: 1px solid rgba(255,215,0,.08);
        }

        .bg-dark-panel {
            background: rgba(7, 23, 14, 0.55);
            border: 1px solid rgba(255, 215, 0, 0.12);
            border-radius: var(--radius-lg);
        }

        /* Cards & grids */
        .grid-2 {
            display: grid;
            grid-template-columns: minmax(0,1fr) minmax(0,1fr);
            gap: 40px;
        }

        .grid-3 {
            display: grid;
            grid-template-columns: repeat(3, minmax(0,1fr));
            gap: 20px;
        }

        .grid-4 {
            display: grid;
            grid-template-columns: repeat(4, minmax(0,1fr));
            gap: 18px;
        }

        .info-card {
            background: rgba(255, 255, 255, 0.04);
            border: 1px solid rgba(255, 215, 0, 0.18);
            border-radius: var(--radius-md);
            padding: 22px;
            transition: border-color .2s ease, transform .2s ease, box-shadow .2s ease;
        }

        .info-card:hover {
            border-color: rgba(255, 215, 0, 0.55);
            transform: translateY(-4px);
            box-shadow: var(--shadow-gold);
        }

        .info-card .card-icon {
            width: 46px;
            height: 46px;
            border-radius: 14px;
            background: rgba(255, 215, 0, 0.12);
            color: var(--gold);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.2rem;
            margin-bottom: 14px;
        }

        .info-card h3 {
            font-size: 1.2rem;
            font-weight: 700;
            color: var(--white);
            margin: 0 0 8px;
        }

        .info-card p {
            margin: 0;
            color: var(--slate);
            line-height: 1.65;
        }

        .promo-card {
            position: relative;
            background: radial-gradient(circle at top right, rgba(255,215,0,.14), rgba(10,46,28,.65));
            border: 1px solid rgba(255, 215, 0, 0.26);
            border-radius: var(--radius-lg);
            padding: 26px 24px;
            overflow: hidden;
            transition: transform .25s ease, border-color .25s ease, box-shadow .25s ease;
        }

        .promo-card:hover {
            transform: translateY(-6px);
            border-color: var(--gold);
            box-shadow: 0 18px 38px rgba(0, 0, 0, 0.35);
        }

        .promo-card .promo-tag {
            position: absolute;
            top: 18px;
            right: 18px;
            padding: 5px 10px;
            border-radius: 999px;
            background: var(--red);
            color: #fff;
            font-size: .72rem;
            font-weight: 800;
            letter-spacing: .04em;
        }

        .promo-card .promo-icon {
            width: 52px;
            height: 52px;
            border-radius: 16px;
            background: rgba(255, 215, 0, 0.16);
            color: var(--gold);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.5rem;
            margin-bottom: 18px;
        }

        .promo-card h3 {
            font-size: 1.28rem;
            font-weight: 800;
            color: #FFE55C;
            margin: 0 0 10px;
        }

        .promo-card p {
            color: var(--mint);
            margin: 0;
            line-height: 1.7;
        }

        .step-grid {
            display: grid;
            grid-template-columns: repeat(4, minmax(0,1fr));
            gap: 16px;
            counter-reset: step;
        }

        .step-item {
            position: relative;
            background: rgba(255, 255, 255, 0.04);
            border: 1px solid rgba(255, 215, 0, 0.16);
            border-radius: var(--radius-md);
            padding: 24px 20px 20px;
        }

        .step-item::before {
            counter-increment: step;
            content: "0" counter(step);
            position: absolute;
            top: 16px;
            right: 18px;
            font-size: 1.6rem;
            font-weight: 800;
            color: rgba(255, 215, 0, 0.35);
        }

        .step-item h3 {
            font-size: 1.1rem;
            font-weight: 700;
            color: var(--white);
            margin: 0 0 8px;
        }

        .step-item p {
            color: var(--slate);
            font-size: .94rem;
            margin: 0;
        }

        .rank-list {
            width: 100%;
            border-collapse: collapse;
            background: rgba(255,255,255,.03);
            border-radius: var(--radius-md);
            overflow: hidden;
            border: 1px solid rgba(255,215,0,.16);
        }

        .rank-list th {
            text-align: left;
            padding: 16px 18px;
            background: rgba(255,215,0,.08);
            color: #FFE55C;
            font-weight: 700;
            font-size: .88rem;
            letter-spacing: .04em;
            text-transform: uppercase;
        }

        .rank-list td {
            padding: 16px 18px;
            border-top: 1px solid rgba(255,215,0,.1);
            color: var(--mint);
            font-size: .95rem;
        }

        .rank-list td:first-child {
            font-weight: 800;
            color: var(--gold);
            width: 48px;
        }

        .rank-list tr:hover td {
            background: rgba(255,215,0,.06);
        }

        .changelog {
            display: grid;
            gap: 14px;
        }

        .changelog-item {
            display: flex;
            gap: 16px;
            align-items: flex-start;
            padding: 18px 20px;
            background: rgba(255,255,255,.04);
            border: 1px solid rgba(255,215,0,.15);
            border-radius: var(--radius-md);
        }

        .changelog-icon {
            flex-shrink: 0;
            width: 38px;
            height: 38px;
            border-radius: 12px;
            background: rgba(255,215,0,.12);
            color: var(--gold);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1rem;
            margin-top: 2px;
        }

        .changelog-item h3 {
            font-size: 1.08rem;
            font-weight: 700;
            margin: 0 0 6px;
            color: var(--white);
        }

        .changelog-item p {
            margin: 0;
            color: var(--slate);
            font-size: .94rem;
        }

        .faq-list {
            display: grid;
            gap: 12px;
        }

        .faq-item {
            background: rgba(255,255,255,.04);
            border: 1px solid rgba(255,215,0,.15);
            border-radius: var(--radius-md);
            overflow: hidden;
        }

        .faq-item summary {
            padding: 18px 20px;
            font-weight: 700;
            font-size: 1.02rem;
            color: var(--white);
            cursor: pointer;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            list-style: none;
        }

        .faq-item summary::-webkit-details-marker {
            display: none;
        }

        .faq-item summary i {
            color: var(--gold);
            font-size: 1rem;
            transition: transform .2s ease;
        }

        .faq-item[open] summary i {
            transform: rotate(180deg);
        }

        .faq-answer {
            padding: 0 20px 20px;
            color: var(--slate);
            line-height: 1.7;
            border-top: 1px solid rgba(255,215,0,.12);
            padding-top: 16px;
            margin: 0 20px 20px;
        }

        .news-grid {
            display: grid;
            grid-template-columns: 1.4fr .8fr;
            gap: 32px;
            align-items: start;
        }

        .news-list {
            display: grid;
            gap: 12px;
        }

        .news-item {
            padding: 18px 20px;
            background: rgba(255,255,255,.04);
            border: 1px solid rgba(255,215,0,.15);
            border-radius: var(--radius-md);
            transition: border-color .2s ease, transform .2s ease;
        }

        .news-item:hover {
            border-color: rgba(255,215,0,.55);
            transform: translateX(4px);
        }

        .news-item .news-title {
            font-weight: 700;
            font-size: 1.04rem;
            color: var(--white);
            display: block;
            margin-bottom: 6px;
        }

        .news-item .news-title:hover {
            color: var(--gold);
        }

        .news-item p {
            margin: 0 0 8px;
            color: var(--slate);
            font-size: .93rem;
        }

        .news-meta {
            display: flex;
            flex-wrap: wrap;
            gap: 12px;
            font-size: .8rem;
            color: rgba(209,242,235,.7);
        }

        .news-meta span {
            display: inline-flex;
            align-items: center;
            gap: 5px;
        }

        .side-panel {
            background: radial-gradient(circle at top left, rgba(255,215,0,.1), rgba(7,23,14,.7));
            border: 1px solid rgba(255,215,0,.2);
            border-radius: var(--radius-lg);
            padding: 24px;
        }

        .side-panel h3 {
            font-size: 1.2rem;
            font-weight: 800;
            color: #FFE55C;
            margin: 0 0 14px;
        }

        .side-panel ul {
            list-style: none;
            padding: 0;
            margin: 0;
            display: grid;
            gap: 12px;
        }

        .side-panel ul a {
            display: flex;
            align-items: center;
            gap: 10px;
            color: var(--mint);
            font-weight: 600;
            font-size: .95rem;
            padding: 8px 0;
            border-bottom: 1px solid rgba(255,215,0,.1);
        }

        .side-panel ul a:hover {
            color: var(--gold);
        }

        .cta-panel {
            position: relative;
            background: radial-gradient(circle at 20% 20%, rgba(255,215,0,.16), var(--bg-900) 55%);
            border: 1px solid rgba(255,215,0,.25);
            border-radius: var(--radius-lg);
            padding: 48px 40px;
            overflow: hidden;
        }

        .cta-panel::after {
            content: "";
            position: absolute;
            top: -40px;
            right: -40px;
            width: 180px;
            height: 180px;
            border-radius: 50%;
            background: rgba(255,215,0,.1);
            filter: blur(10px);
        }

        .cta-panel h2 {
            position: relative;
            z-index: 1;
            font-size: clamp(1.7rem, 3vw, 2.4rem);
            font-weight: 800;
            margin: 0 0 14px;
            color: #fff;
        }

        .cta-panel p {
            position: relative;
            z-index: 1;
            color: var(--mint);
            max-width: 680px;
            line-height: 1.7;
            margin: 0 0 22px;
        }

        .cta-actions {
            position: relative;
            z-index: 1;
            display: flex;
            flex-wrap: wrap;
            gap: 14px;
        }

        .footer {
            background: #04130A;
            border-top: 1px solid rgba(255,215,0,.14);
            padding: 54px 0 30px;
            color: var(--slate);
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 1.2fr 1fr 1fr 1fr;
            gap: 30px;
        }

        .footer h3 {
            color: #FFE55C;
            font-size: 1rem;
            font-weight: 700;
            margin: 0 0 14px;
        }

        .footer ul {
            list-style: none;
            padding: 0;
            margin: 0;
            display: grid;
            gap: 8px;
        }

        .footer ul a {
            color: var(--slate);
            font-size: .92rem;
        }

        .footer ul a:hover {
            color: var(--gold);
        }

        .footer-brand {
            display: flex;
            flex-direction: column;
            gap: 12px;
        }

        .footer .logo-text strong {
            font-size: 1.2rem;
        }

        .footer .logo-icon {
            width: 46px;
            height: 46px;
            border-radius: 13px;
            font-size: 1.35rem;
        }

        .footer-bottom {
            margin-top: 38px;
            padding-top: 20px;
            border-top: 1px solid rgba(255,215,0,.12);
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 18px;
            flex-wrap: wrap;
            font-size: .9rem;
            color: rgba(209,242,235,.75);
        }

        .footer-badges {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-wrap: wrap;
        }

        .badge-18 {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 34px;
            height: 34px;
            border-radius: 50%;
            border: 2px solid var(--red);
            color: #fff;
            font-weight: 800;
            font-size: .75rem;
            background: rgba(211,47,47,.18);
        }

        .trust-badge {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 6px 10px;
            border-radius: 999px;
            font-size: .78rem;
            font-weight: 700;
            color: var(--mint);
            background: rgba(255,215,0,.08);
            border: 1px solid rgba(255,215,0,.2);
        }

        /* FAB */
        .fab-support {
            position: fixed;
            left: 16px;
            bottom: 96px;
            z-index: 90;
            width: 56px;
            height: 56px;
            border-radius: 50%;
            background: radial-gradient(circle at 30% 25%, #FFE55C, #B8860B);
            border: 2px solid #FFE55C;
            color: #0A2E1C;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.4rem;
            box-shadow: 0 4px 20px rgba(255,215,0,.35);
            opacity: .75;
            transition: all .25s ease;
            animation: fab-float 3s infinite ease-in-out;
        }

        .fab-support::after {
            content: "";
            position: absolute;
            top: -2px;
            right: -2px;
            width: 12px;
            height: 12px;
            border-radius: 50%;
            background: var(--red);
            border: 2px solid #3A0A0A;
            box-shadow: 0 0 8px rgba(211,47,47,.8);
            animation: fab-blink 1.2s infinite;
        }

        .fab-support:hover {
            opacity: 1;
            transform: scale(1.12);
            box-shadow: 0 10px 28px rgba(255,215,0,.5);
        }

        .fab-support:active {
            transform: scale(.94) translateY(3px);
        }

        @keyframes fab-float {
            0%,100% { transform: translateY(0); }
            50% { transform: translateY(-7px); }
        }

        @keyframes fab-blink {
            0%,100% { opacity: 1; }
            50% { opacity: .3; }
        }

        /* Responsive */
        @media (max-width: 1024px) {
            .grid-4 {
                grid-template-columns: repeat(2, minmax(0,1fr));
            }
            .step-grid {
                grid-template-columns: repeat(2, minmax(0,1fr));
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
            }
            .news-grid {
                grid-template-columns: 1fr;
            }
            .grid-2 {
                grid-template-columns: 1fr;
                gap: 28px;
            }
        }

        @media (max-width: 768px) {
            :root {
                --header-height: 68px;
            }
            .container {
                padding-left: 18px;
                padding-right: 18px;
            }
            .nav-links {
                display: none;
            }
            .menu-toggle {
                display: inline-flex;
            }
            .nav-actions .btn-login {
                padding: 9px 14px;
                font-size: .85rem;
            }
            .nav-actions .btn-signup {
                padding: 9px 14px;
                font-size: .85rem;
            }
            .hero {
                min-height: 88vh;
                padding-top: calc(var(--header-height) + 28px);
                padding-bottom: 56px;
            }
            .hero h1 {
                font-size: 2rem;
            }
            .hero-desc {
                font-size: 1rem;
            }
            .hero-stats {
                grid-template-columns: 1fr;
                gap: 12px;
            }
            .grid-3 {
                grid-template-columns: 1fr;
            }
            .grid-4 {
                grid-template-columns: 1fr;
            }
            .step-grid {
                grid-template-columns: 1fr;
            }
            .section {
                padding: 58px 0;
            }
            .cta-panel {
                padding: 32px 22px;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 26px;
            }
            .footer-bottom {
                flex-direction: column;
                align-items: flex-start;
            }
            .rank-list {
                font-size: .88rem;
            }
            .rank-list th,
            .rank-list td {
                padding: 12px 10px;
            }
            .fab-support {
                left: 12px;
                bottom: 86px;
                width: 48px;
                height: 48px;
                font-size: 1.2rem;
            }
        }

        @media (max-width: 520px) {
            .logo-text strong {
                font-size: .98rem;
            }
            .logo-text span {
                font-size: .66rem;
            }
            .logo-icon {
                width: 38px;
                height: 38px;
                font-size: 1rem;
            }
            .hero-actions {
                flex-direction: column;
                align-items: stretch;
            }
            .hero-actions a {
                width: 100%;
            }
            .hero h1 {
                font-size: 1.75rem;
            }
            .hero-desc {
                font-size: .95rem;
            }
            .section-title {
                font-size: 1.6rem;
            }
            .section-desc {
                font-size: .95rem;
            }
            .info-card,
            .promo-card,
            .step-item,
            .news-item,
            .changelog-item {
                padding: 18px 16px;
            }
            .cta-actions {
                flex-direction: column;
                align-items: stretch;
            }
            .cta-actions a {
                width: 100%;
            }
        }

/* roulang page: category1 */
:root {
            --bg-primary: #121212;
            --bg-secondary: #1C1C1E;
            --bg-tertiary: #242426;
            --accent-bronze: #C5A059;
            --accent-gold: #FFBF00;
            --accent-muted-gold: #D4AC0D;
            --text-primary: #F5F5F7;
            --text-secondary: #A6A6AE;
            --text-muted: #7A7A85;
            --border-gold: rgba(197, 160, 89, 0.3);
            --border-subtle: rgba(255, 255, 255, 0.08);
            --radius-sm: 8px;
            --radius-md: 14px;
            --radius-lg: 20px;
            --radius-xl: 28px;
            --shadow-gold: 0 8px 32px rgba(197, 160, 89, 0.15);
            --shadow-strong: 0 16px 48px rgba(197, 160, 89, 0.25);
            --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
        }
        * {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        html {
            scroll-behavior: smooth;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }
        body {
            font-family: 'Inter', system-ui, sans-serif;
            background-color: var(--bg-primary);
            color: var(--text-primary);
            line-height: 1.6;
            min-height: 100vh;
        }
        a {
            color: inherit;
            text-decoration: none;
            transition: var(--transition);
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        button, input, select, textarea {
            font-family: inherit;
        }
        button:focus-visible, a:focus-visible {
            outline: 2px solid var(--accent-gold);
            outline-offset: 3px;
        }
        .container {
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 24px;
        }
        .header {
            background: rgba(18, 18, 18, 0.92);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border-bottom: 1px solid var(--border-subtle);
            position: sticky;
            top: 0;
            z-index: 100;
            transition: var(--transition);
        }
        .header.scrolled {
            background: rgba(18, 18, 18, 0.98);
            border-bottom-color: var(--border-gold);
            box-shadow: 0 4px 20px rgba(0, 0, 0, 0.4);
        }
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 14px 24px;
            max-width: 1200px;
            margin: 0 auto;
            gap: 16px;
            flex-wrap: wrap;
        }
        .logo {
            display: flex;
            align-items: center;
            gap: 12px;
            flex-shrink: 0;
        }
        .logo-icon {
            display: flex;
            align-items: center;
            justify-content: center;
            width: 42px;
            height: 42px;
            background: linear-gradient(135deg, var(--accent-bronze), var(--accent-gold));
            color: #121212;
            font-weight: 800;
            font-size: 0.85rem;
            border-radius: 10px;
            letter-spacing: -0.02em;
            box-shadow: var(--shadow-gold);
        }
        .logo-text {
            display: flex;
            flex-direction: column;
            line-height: 1.2;
        }
        .logo-text strong {
            font-family: 'Playfair Display', Georgia, serif;
            font-size: 1.05rem;
            font-weight: 700;
            color: var(--text-primary);
            letter-spacing: -0.01em;
        }
        .logo-text span {
            font-size: 0.7rem;
            font-weight: 500;
            text-transform: uppercase;
            letter-spacing: 0.08em;
            color: var(--accent-muted-gold);
        }
        .nav-links {
            display: flex;
            align-items: center;
            gap: 6px;
            flex-wrap: wrap;
        }
        .nav-links a {
            display: inline-flex;
            align-items: center;
            padding: 8px 16px;
            font-size: 0.875rem;
            font-weight: 500;
            color: var(--text-secondary);
            border-radius: 8px;
            transition: var(--transition);
            position: relative;
            white-space: nowrap;
        }
        .nav-links a:hover {
            color: var(--text-primary);
            background: rgba(197, 160, 89, 0.08);
        }
        .nav-links a.active {
            color: var(--accent-gold);
            background: rgba(197, 160, 89, 0.12);
            font-weight: 600;
        }
        .nav-links a.active::after {
            content: '';
            position: absolute;
            bottom: 4px;
            left: 50%;
            transform: translateX(-50%);
            width: 20px;
            height: 2px;
            background: var(--accent-gold);
            border-radius: 2px;
        }
        .header-actions {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-shrink: 0;
        }
        .btn-login {
            background: transparent;
            border: 1px solid var(--border-subtle);
            color: var(--text-primary);
            padding: 9px 20px;
            font-size: 0.85rem;
            font-weight: 600;
            border-radius: 8px;
            cursor: pointer;
            transition: var(--transition);
        }
        .btn-login:hover {
            border-color: var(--accent-bronze);
            color: var(--accent-gold);
            background: rgba(197, 160, 89, 0.05);
        }
        .btn-signup {
            background: linear-gradient(135deg, var(--accent-bronze), var(--accent-gold));
            color: #121212;
            padding: 9px 22px;
            font-size: 0.85rem;
            font-weight: 700;
            border-radius: 8px;
            cursor: pointer;
            border: none;
            transition: var(--transition);
            box-shadow: var(--shadow-gold);
        }
        .btn-signup:hover {
            transform: translateY(-2px);
            box-shadow: var(--shadow-strong);
        }
        .btn-signup:active {
            transform: translateY(0);
            box-shadow: var(--shadow-gold);
        }
        .mobile-toggle {
            display: none;
            background: none;
            border: none;
            color: var(--text-primary);
            font-size: 1.5rem;
            cursor: pointer;
            padding: 8px;
            border-radius: 8px;
            transition: var(--transition);
        }
        .mobile-toggle:hover {
            background: rgba(197, 160, 89, 0.1);
        }

        .hero-eval {
            position: relative;
            background: linear-gradient(160deg, #1C1C1E 0%, #121212 45%, #0D0D0D 100%);
            padding: 72px 0 80px;
            overflow: hidden;
            border-bottom: 1px solid var(--border-subtle);
        }
        .hero-eval::before {
            content: '';
            position: absolute;
            top: -120px;
            right: -120px;
            width: 400px;
            height: 400px;
            background: radial-gradient(circle, rgba(197, 160, 89, 0.15) 0%, transparent 65%);
            border-radius: 50%;
            pointer-events: none;
        }
        .hero-eval::after {
            content: '';
            position: absolute;
            bottom: -80px;
            left: -100px;
            width: 300px;
            height: 300px;
            background: radial-gradient(circle, rgba(255, 191, 0, 0.08) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }
        .hero-eval .container {
            position: relative;
            z-index: 1;
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 56px;
            align-items: center;
        }
        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: rgba(197, 160, 89, 0.1);
            border: 1px solid var(--border-gold);
            color: var(--accent-gold);
            padding: 6px 14px;
            font-size: 0.78rem;
            font-weight: 600;
            border-radius: 20px;
            letter-spacing: 0.04em;
            margin-bottom: 20px;
        }
        .hero-badge i {
            font-size: 0.7rem;
        }
        .hero-title {
            font-family: 'Playfair Display', Georgia, serif;
            font-size: 2.6rem;
            font-weight: 700;
            line-height: 1.2;
            letter-spacing: -0.02em;
            margin-bottom: 20px;
            max-width: 520px;
        }
        .hero-title em {
            font-style: normal;
            color: var(--accent-gold);
            position: relative;
        }
        .hero-title em::after {
            content: '';
            position: absolute;
            bottom: 2px;
            left: 0;
            right: 0;
            height: 4px;
            background: rgba(255, 191, 0, 0.25);
            border-radius: 2px;
            z-index: -1;
        }
        .hero-desc {
            font-size: 1.02rem;
            line-height: 1.68;
            color: var(--text-secondary);
            max-width: 500px;
            margin-bottom: 28px;
        }
        .hero-cta-group {
            display: flex;
            align-items: center;
            gap: 14px;
            flex-wrap: wrap;
        }
        .btn-primary-gold {
            background: linear-gradient(135deg, var(--accent-bronze), var(--accent-gold));
            color: #121212;
            padding: 13px 28px;
            font-size: 0.95rem;
            font-weight: 700;
            border-radius: 10px;
            cursor: pointer;
            border: none;
            transition: var(--transition);
            box-shadow: var(--shadow-gold);
            display: inline-flex;
            align-items: center;
            gap: 8px;
        }
        .btn-primary-gold:hover {
            transform: translateY(-2px);
            box-shadow: var(--shadow-strong);
        }
        .btn-primary-gold:active {
            transform: translateY(0);
            box-shadow: var(--shadow-gold);
        }
        .btn-outline-gold {
            background: transparent;
            border: 1px solid var(--border-gold);
            color: var(--accent-gold);
            padding: 12px 24px;
            font-size: 0.9rem;
            font-weight: 600;
            border-radius: 10px;
            cursor: pointer;
            transition: var(--transition);
            display: inline-flex;
            align-items: center;
            gap: 8px;
        }
        .btn-outline-gold:hover {
            background: rgba(197, 160, 89, 0.1);
            border-color: var(--accent-gold);
        }
        .hero-data-panel {
            background: rgba(28, 28, 30, 0.85);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-xl);
            padding: 32px;
            box-shadow: 0 20px 60px rgba(0, 0, 0, 0.5);
            backdrop-filter: blur(10px);
            position: relative;
        }
        .hero-data-panel::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 3px;
            background: linear-gradient(90deg, var(--accent-bronze), var(--accent-gold), transparent);
            border-radius: var(--radius-xl) var(--radius-xl) 0 0;
        }
        .panel-label {
            font-size: 0.75rem;
            text-transform: uppercase;
            letter-spacing: 0.1em;
            color: var(--text-muted);
            font-weight: 600;
            margin-bottom: 20px;
        }
        .data-row {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 12px 0;
            border-bottom: 1px solid var(--border-subtle);
        }
        .data-row:last-child {
            border-bottom: none;
        }
        .data-label {
            font-size: 0.88rem;
            color: var(--text-secondary);
            font-weight: 500;
        }
        .data-value {
            font-size: 1.1rem;
            font-weight: 700;
            color: var(--accent-gold);
            font-family: 'Playfair Display', Georgia, serif;
        }
        .data-value.green {
            color: #4CAF50;
        }
        .data-value.white {
            color: var(--text-primary);
        }
        .panel-badge {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            background: rgba(76, 175, 80, 0.12);
            color: #4CAF50;
            padding: 4px 12px;
            font-size: 0.75rem;
            font-weight: 600;
            border-radius: 14px;
            border: 1px solid rgba(76, 175, 80, 0.25);
        }

        .stats-strip {
            background: var(--bg-secondary);
            border-bottom: 1px solid var(--border-subtle);
            padding: 36px 0;
        }
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
        }
        .stat-item {
            text-align: center;
            padding: 20px 16px;
            background: rgba(255, 255, 255, 0.03);
            border-radius: var(--radius-md);
            border: 1px solid var(--border-subtle);
            transition: var(--transition);
        }
        .stat-item:hover {
            border-color: var(--border-gold);
            background: rgba(197, 160, 89, 0.05);
        }
        .stat-number {
            font-family: 'Playfair Display', Georgia, serif;
            font-size: 2rem;
            font-weight: 700;
            color: var(--accent-gold);
            margin-bottom: 4px;
        }
        .stat-label {
            font-size: 0.82rem;
            font-weight: 500;
            color: var(--text-secondary);
        }

        .section {
            padding: 72px 0;
        }
        .section-alt {
            background: var(--bg-secondary);
            border-top: 1px solid var(--border-subtle);
            border-bottom: 1px solid var(--border-subtle);
        }
        .section-heading {
            margin-bottom: 44px;
        }
        .section-heading h2 {
            font-family: 'Playfair Display', Georgia, serif;
            font-size: 2rem;
            font-weight: 700;
            letter-spacing: -0.015em;
            margin-bottom: 12px;
            color: var(--text-primary);
        }
        .section-heading p {
            font-size: 0.98rem;
            color: var(--text-secondary);
            max-width: 560px;
            line-height: 1.65;
        }
        .kicker {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 0.78rem;
            font-weight: 600;
            text-transform: uppercase;
            letter-spacing: 0.08em;
            color: var(--accent-muted-gold);
            margin-bottom: 8px;
        }
        .kicker::before {
            content: '◆';
            font-size: 0.6rem;
            color: var(--accent-gold);
        }

        .criteria-layout {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 48px;
            align-items: start;
        }
        .criteria-image-wrap {
            position: relative;
            border-radius: var(--radius-lg);
            overflow: hidden;
            border: 1px solid var(--border-subtle);
        }
        .criteria-image-wrap img {
            width: 100%;
            height: 420px;
            object-fit: cover;
            transition: var(--transition);
        }
        .criteria-image-wrap:hover img {
            transform: scale(1.04);
        }
        .criteria-image-overlay {
            position: absolute;
            bottom: 0;
            left: 0;
            right: 0;
            padding: 28px;
            background: linear-gradient(transparent, rgba(18, 18, 18, 0.9));
            font-size: 0.85rem;
            color: var(--text-secondary);
            font-weight: 500;
        }
        .criteria-list {
            display: flex;
            flex-direction: column;
            gap: 20px;
        }
        .criteria-item {
            display: flex;
            gap: 16px;
            align-items: flex-start;
            padding: 20px 22px;
            background: rgba(255, 255, 255, 0.03);
            border-radius: var(--radius-md);
            border: 1px solid var(--border-subtle);
            transition: var(--transition);
        }
        .criteria-item:hover {
            border-color: var(--border-gold);
            background: rgba(197, 160, 89, 0.05);
            transform: translateX(4px);
        }
        .criteria-icon {
            flex-shrink: 0;
            display: flex;
            align-items: center;
            justify-content: center;
            width: 44px;
            height: 44px;
            background: rgba(197, 160, 89, 0.12);
            border-radius: 10px;
            color: var(--accent-gold);
            font-size: 1.1rem;
        }
        .criteria-text h3 {
            font-size: 1.05rem;
            font-weight: 600;
            color: var(--text-primary);
            margin-bottom: 6px;
        }
        .criteria-text p {
            font-size: 0.88rem;
            color: var(--text-secondary);
            line-height: 1.6;
        }

        .review-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 24px;
        }
        .review-card {
            background: var(--bg-secondary);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-md);
            padding: 28px;
            transition: var(--transition);
            position: relative;
        }
        .review-card:hover {
            border-color: var(--border-gold);
            box-shadow: var(--shadow-gold);
        }
        .review-card::before {
            content: '"';
            position: absolute;
            top: 12px;
            right: 20px;
            font-size: 3.5rem;
            font-family: 'Playfair Display', Georgia, serif;
            color: rgba(197, 160, 89, 0.15);
            line-height: 1;
        }
        .review-stars {
            display: flex;
            gap: 3px;
            color: var(--accent-gold);
            font-size: 0.82rem;
            margin-bottom: 12px;
        }
        .review-text {
            font-size: 0.92rem;
            color: var(--text-secondary);
            line-height: 1.68;
            margin-bottom: 16px;
        }
        .review-author {
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .review-avatar {
            width: 36px;
            height: 36px;
            background: linear-gradient(135deg, var(--accent-bronze), var(--accent-gold));
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            color: #121212;
            font-size: 0.85rem;
        }
        .review-author-name {
            font-size: 0.85rem;
            font-weight: 600;
            color: var(--text-primary);
        }
        .review-author-meta {
            font-size: 0.75rem;
            color: var(--text-muted);
        }

        .comparison-table-wrap {
            overflow-x: auto;
            border-radius: var(--radius-lg);
            border: 1px solid var(--border-subtle);
        }
        .comparison-table {
            width: 100%;
            border-collapse: collapse;
            min-width: 600px;
        }
        .comparison-table th {
            background: var(--bg-tertiary);
            color: var(--text-primary);
            font-weight: 600;
            font-size: 0.85rem;
            text-align: left;
            padding: 16px 20px;
            border-bottom: 2px solid var(--border-gold);
            white-space: nowrap;
        }
        .comparison-table td {
            padding: 14px 20px;
            font-size: 0.88rem;
            color: var(--text-secondary);
            border-bottom: 1px solid var(--border-subtle);
            white-space: nowrap;
        }
        .comparison-table tr:last-child td {
            border-bottom: none;
        }
        .comparison-table tr:hover td {
            background: rgba(197, 160, 89, 0.03);
        }
        .check-gold {
            color: var(--accent-gold);
            font-weight: 600;
        }
        .check-green {
            color: #4CAF50;
            font-weight: 600;
        }
        .check-gray {
            color: var(--text-muted);
        }

        .faq-wrap {
            max-width: 760px;
            margin: 0 auto;
        }
        .faq-item {
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-md);
            margin-bottom: 12px;
            background: var(--bg-secondary);
            overflow: hidden;
            transition: var(--transition);
        }
        .faq-item:hover {
            border-color: var(--border-gold);
        }
        .faq-question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 18px 22px;
            cursor: pointer;
            font-weight: 600;
            font-size: 0.92rem;
            color: var(--text-primary);
            gap: 12px;
            user-select: none;
            transition: var(--transition);
        }
        .faq-question:hover {
            color: var(--accent-gold);
        }
        .faq-question i {
            color: var(--accent-muted-gold);
            font-size: 0.8rem;
            transition: var(--transition);
            flex-shrink: 0;
        }
        .faq-item.open .faq-question i {
            transform: rotate(180deg);
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.35s cubic-bezier(0.4, 0, 0.2, 1);
        }
        .faq-item.open .faq-answer {
            max-height: 350px;
        }
        .faq-answer-inner {
            padding: 0 22px 20px;
            font-size: 0.88rem;
            color: var(--text-secondary);
            line-height: 1.68;
        }

        .cta-panel {
            background: linear-gradient(135deg, #1C1C1E 0%, #242426 50%, #1C1C1E 100%);
            border: 1px solid var(--border-gold);
            border-radius: var(--radius-xl);
            padding: 48px 40px;
            text-align: center;
            position: relative;
            overflow: hidden;
        }
        .cta-panel::before {
            content: '';
            position: absolute;
            top: -50%;
            left: -50%;
            width: 200%;
            height: 200%;
            background: radial-gradient(circle at center, rgba(197, 160, 89, 0.08) 0%, transparent 55%);
            pointer-events: none;
        }
        .cta-panel > * {
            position: relative;
            z-index: 1;
        }
        .cta-panel h2 {
            font-family: 'Playfair Display', Georgia, serif;
            font-size: 1.9rem;
            font-weight: 700;
            margin-bottom: 12px;
            color: var(--text-primary);
        }
        .cta-panel p {
            font-size: 0.95rem;
            color: var(--text-secondary);
            max-width: 500px;
            margin: 0 auto 28px;
            line-height: 1.65;
        }

        .footer {
            background: var(--bg-primary);
            border-top: 1px solid var(--border-gold);
            padding: 56px 0 28px;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 40px;
            margin-bottom: 40px;
        }
        .footer-brand .logo {
            margin-bottom: 16px;
        }
        .footer-brand p {
            font-size: 0.88rem;
            color: var(--text-secondary);
            line-height: 1.68;
            max-width: 360px;
        }
        .footer h3 {
            font-size: 0.85rem;
            font-weight: 700;
            text-transform: uppercase;
            letter-spacing: 0.06em;
            color: var(--accent-muted-gold);
            margin-bottom: 16px;
        }
        .footer ul {
            list-style: none;
        }
        .footer ul li {
            margin-bottom: 10px;
        }
        .footer ul li a {
            font-size: 0.85rem;
            color: var(--text-secondary);
            transition: var(--transition);
        }
        .footer ul li a:hover {
            color: var(--accent-gold);
        }
        .footer-bottom {
            border-top: 1px solid var(--border-subtle);
            padding-top: 24px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 16px;
        }
        .footer-bottom p {
            font-size: 0.78rem;
            color: var(--text-muted);
        }
        .footer-badges {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-wrap: wrap;
        }
        .badge-18 {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 36px;
            height: 36px;
            background: #D32F2F;
            color: #fff;
            font-weight: 800;
            font-size: 0.75rem;
            border-radius: 50%;
            border: 2px solid var(--accent-gold);
        }
        .trust-badge {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 0.75rem;
            color: var(--text-secondary);
            background: rgba(255, 255, 255, 0.05);
            padding: 6px 12px;
            border-radius: 16px;
            border: 1px solid var(--border-subtle);
            font-weight: 500;
        }
        .trust-badge i {
            color: var(--accent-gold);
            font-size: 0.7rem;
        }

        .fab-left {
            position: fixed;
            left: 16px;
            bottom: 96px;
            z-index: 50;
            display: flex;
            align-items: center;
            justify-content: center;
            width: 54px;
            height: 54px;
            background: rgba(0, 0, 0, 0.72);
            backdrop-filter: blur(10px);
            -webkit-backdrop-filter: blur(10px);
            border-radius: 50%;
            border: 2px solid transparent;
            background-image: linear-gradient(rgba(0,0,0,0.72), rgba(0,0,0,0.72)), linear-gradient(135deg, var(--accent-bronze), var(--accent-gold));
            background-origin: border-box;
            background-clip: padding-box, border-box;
            color: var(--accent-gold);
            font-size: 1.3rem;
            cursor: pointer;
            transition: var(--transition);
            box-shadow: 0 4px 20px rgba(197, 160, 89, 0.25);
            animation: fabFloat 3s ease-in-out infinite;
        }
        .fab-left:hover {
            transform: scale(1.1);
            opacity: 1;
            box-shadow: 0 8px 32px rgba(197, 160, 89, 0.4);
            animation: none;
        }
        .fab-left:active {
            transform: scale(0.95);
        }
        .fab-left::after {
            content: '';
            position: absolute;
            top: -2px;
            right: -2px;
            width: 16px;
            height: 16px;
            background: #E53935;
            border-radius: 50%;
            border: 2px solid var(--bg-primary);
            animation: fabBlink 2s ease-in-out infinite;
        }
        @keyframes fabFloat {
            0%, 100% { transform: translateY(0); }
            50% { transform: translateY(-8px); }
        }
        @keyframes fabBlink {
            0%, 100% { opacity: 1; }
            50% { opacity: 0.4; }
        }

        @media (max-width: 1024px) {
            .hero-eval .container {
                grid-template-columns: 1fr;
                gap: 40px;
            }
            .hero-title {
                font-size: 2.2rem;
                max-width: 100%;
            }
            .hero-desc {
                max-width: 100%;
            }
            .hero-data-panel {
                max-width: 520px;
            }
            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .criteria-layout {
                grid-template-columns: 1fr;
                gap: 32px;
            }
            .criteria-image-wrap img {
                height: 300px;
            }
            .review-grid {
                grid-template-columns: 1fr;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 28px;
            }
        }
        @media (max-width: 768px) {
            .header-inner {
                padding: 12px 16px;
                gap: 12px;
            }
            .mobile-toggle {
                display: flex;
            }
            .nav-links {
                display: none;
                position: absolute;
                top: 100%;
                left: 0;
                right: 0;
                background: rgba(18, 18, 18, 0.98);
                backdrop-filter: blur(10px);
                flex-direction: column;
                padding: 16px 24px;
                gap: 4px;
                border-bottom: 1px solid var(--border-gold);
                box-shadow: 0 20px 40px rgba(0, 0, 0, 0.5);
            }
            .nav-links.open {
                display: flex;
            }
            .nav-links a {
                width: 100%;
                padding: 12px 16px;
                font-size: 0.95rem;
            }
            .header-actions {
                gap: 8px;
            }
            .btn-login {
                padding: 7px 14px;
                font-size: 0.78rem;
            }
            .btn-signup {
                padding: 7px 16px;
                font-size: 0.78rem;
            }
            .hero-eval {
                padding: 48px 0 56px;
            }
            .hero-title {
                font-size: 1.8rem;
            }
            .hero-desc {
                font-size: 0.92rem;
            }
            .hero-data-panel {
                padding: 22px;
                border-radius: var(--radius-md);
            }
            .section {
                padding: 48px 0;
            }
            .section-heading h2 {
                font-size: 1.6rem;
            }
            .stats-grid {
                grid-template-columns: 1fr 1fr;
                gap: 14px;
            }
            .stat-number {
                font-size: 1.5rem;
            }
            .criteria-image-wrap img {
                height: 240px;
            }
            .criteria-item {
                padding: 16px 18px;
            }
            .cta-panel {
                padding: 32px 22px;
            }
            .cta-panel h2 {
                font-size: 1.5rem;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 20px;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
            }
            .fab-left {
                width: 48px;
                height: 48px;
                font-size: 1.1rem;
                left: 12px;
                bottom: 80px;
            }
        }
        @media (max-width: 520px) {
            .container {
                padding: 0 16px;
            }
            .header-inner {
                padding: 10px 16px;
            }
            .logo-icon {
                width: 36px;
                height: 36px;
                font-size: 0.72rem;
            }
            .logo-text strong {
                font-size: 0.9rem;
            }
            .logo-text span {
                font-size: 0.62rem;
            }
            .hero-title {
                font-size: 1.5rem;
            }
            .hero-badge {
                font-size: 0.7rem;
                padding: 5px 12px;
            }
            .stats-grid {
                grid-template-columns: 1fr;
                gap: 10px;
            }
            .criteria-item {
                flex-direction: column;
                gap: 10px;
            }
            .criteria-icon {
                width: 38px;
                height: 38px;
                font-size: 0.95rem;
            }
            .comparison-table th, .comparison-table td {
                padding: 10px 14px;
                font-size: 0.78rem;
            }
            .faq-question {
                padding: 14px 16px;
                font-size: 0.85rem;
            }
            .faq-answer-inner {
                padding: 0 16px 14px;
                font-size: 0.82rem;
            }
        }

/* roulang page: article */
:root {
            --bg-primary: #0A2E1C;
            --bg-secondary: #123E25;
            --bg-deep: #0B3C25;
            --accent-gold: #FFD700;
            --accent-gold-amber: #FFBF00;
            --accent-gold-bronze: #C5A059;
            --accent-red: #D32F2F;
            --text-white: #FFFFFF;
            --text-mint: #D1F2EB;
            --text-slate: #A6ACAF;
            --border-gold: rgba(255, 215, 0, 0.25);
            --border-gold-strong: rgba(255, 215, 0, 0.55);
            --radius-sm: 8px;
            --radius-md: 16px;
            --radius-lg: 24px;
            --shadow-gold: 0 8px 32px rgba(255, 215, 0, 0.12);
            --shadow-gold-hover: 0 12px 40px rgba(255, 215, 0, 0.22);
            --shadow-crimson: 0 4px 20px rgba(211, 47, 47, 0.25);
            --transition-base: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            --transition-slow: all 0.5s cubic-bezier(0.4, 0, 0.2, 1);
            --font-sans: 'Be Vietnam Pro', system-ui, sans-serif;
        }

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

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

        body {
            font-family: var(--font-sans);
            background: var(--bg-primary);
            color: var(--text-white);
            line-height: 1.65;
            letter-spacing: 0.01em;
            min-height: 100vh;
            display: flex;
            flex-direction: column;
        }

        body::before {
            content: '';
            position: fixed;
            inset: 0;
            background:
                radial-gradient(ellipse at 20% 10%, rgba(255, 215, 0, 0.04) 0%, transparent 55%),
                radial-gradient(ellipse at 80% 90%, rgba(211, 47, 47, 0.035) 0%, transparent 55%),
                radial-gradient(ellipse at 50% 50%, rgba(18, 62, 37, 0.5) 0%, transparent 75%);
            pointer-events: none;
            z-index: 0;
        }

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

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

        button,
        input,
        select,
        textarea {
            font-family: inherit;
            font-size: inherit;
        }

        button:focus-visible,
        a:focus-visible,
        input:focus-visible {
            outline: 2px solid var(--accent-gold);
            outline-offset: 3px;
            border-radius: 4px;
        }

        .container {
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 24px;
            position: relative;
            z-index: 1;
        }

        /* ============ HEADER / NAV ============ */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 100;
            background: rgba(10, 46, 28, 0.92);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            border-bottom: 1px solid var(--border-gold);
            transition: var(--transition-base);
        }

        .site-header.scrolled {
            box-shadow: 0 4px 24px rgba(0, 0, 0, 0.35);
            background: rgba(10, 46, 28, 0.97);
        }

        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 24px;
            padding: 14px 0;
            min-height: 64px;
        }

        .logo {
            display: flex;
            align-items: center;
            gap: 12px;
            flex-shrink: 0;
        }

        .logo-icon {
            display: flex;
            align-items: center;
            justify-content: center;
            width: 44px;
            height: 44px;
            background: linear-gradient(135deg, var(--accent-gold), var(--accent-gold-amber));
            color: #0A2E1C;
            font-weight: 900;
            font-size: 1.1rem;
            border-radius: 12px;
            letter-spacing: -0.5px;
            box-shadow: var(--shadow-gold);
        }

        .logo-text {
            display: flex;
            flex-direction: column;
            line-height: 1.2;
        }

        .logo-text strong {
            font-size: 1.05rem;
            font-weight: 800;
            color: var(--accent-gold);
            letter-spacing: -0.3px;
        }

        .logo-text span:not(strong) {
            font-size: 0.72rem;
            color: var(--text-mint);
            font-weight: 500;
            letter-spacing: 0.5px;
            text-transform: uppercase;
        }

        .nav-links {
            display: flex;
            align-items: center;
            gap: 28px;
            margin-left: auto;
        }

        .nav-links a {
            font-size: 0.92rem;
            font-weight: 600;
            color: var(--text-mint);
            padding: 8px 2px;
            position: relative;
            white-space: nowrap;
            transition: var(--transition-base);
        }

        .nav-links a::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 0;
            height: 2px;
            background: var(--accent-gold);
            border-radius: 2px;
            transition: var(--transition-base);
        }

        .nav-links a:hover {
            color: var(--accent-gold);
        }

        .nav-links a:hover::after {
            width: 100%;
        }

        .nav-links a.active {
            color: var(--accent-gold);
        }

        .nav-links a.active::after {
            width: 100%;
        }

        .nav-actions {
            display: flex;
            align-items: center;
            gap: 12px;
            flex-shrink: 0;
        }

        .btn-login {
            font-size: 0.88rem;
            font-weight: 600;
            color: var(--accent-gold);
            padding: 8px 16px;
            border-radius: 9999px;
            border: 1px solid var(--border-gold-strong);
            background: transparent;
            cursor: pointer;
            transition: var(--transition-base);
            white-space: nowrap;
        }

        .btn-login:hover {
            background: rgba(255, 215, 0, 0.1);
            border-color: var(--accent-gold);
        }

        .btn-signup {
            font-size: 0.88rem;
            font-weight: 700;
            color: #0A2E1C;
            padding: 10px 22px;
            border-radius: 9999px;
            background: linear-gradient(135deg, var(--accent-gold), var(--accent-gold-amber));
            border: none;
            cursor: pointer;
            box-shadow: var(--shadow-gold);
            transition: var(--transition-base);
            white-space: nowrap;
            letter-spacing: 0.2px;
        }

        .btn-signup:hover {
            box-shadow: var(--shadow-gold-hover);
            transform: translateY(-2px);
            background: linear-gradient(135deg, var(--accent-gold-amber), var(--accent-gold));
        }

        .btn-signup:active {
            transform: translateY(0);
            box-shadow: var(--shadow-gold);
        }

        .mobile-toggle {
            display: none;
            flex-direction: column;
            gap: 6px;
            background: transparent;
            border: none;
            cursor: pointer;
            padding: 8px;
            border-radius: 8px;
            transition: var(--transition-base);
        }

        .mobile-toggle span {
            display: block;
            width: 26px;
            height: 2.5px;
            background: var(--accent-gold);
            border-radius: 2px;
            transition: var(--transition-base);
        }

        .mobile-toggle:hover {
            background: rgba(255, 215, 0, 0.1);
        }

        /* ============ BREADCRUMB ============ */
        .breadcrumb-bar {
            background: rgba(18, 62, 37, 0.6);
            border-bottom: 1px solid rgba(255, 215, 0, 0.12);
            padding: 14px 24px;
        }

        .breadcrumb-inner {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 0.85rem;
            color: var(--text-slate);
            flex-wrap: wrap;
        }

        .breadcrumb-inner a {
            color: var(--text-mint);
            font-weight: 500;
            transition: var(--transition-base);
        }

        .breadcrumb-inner a:hover {
            color: var(--accent-gold);
        }

        .breadcrumb-inner .separator {
            color: var(--accent-gold-bronze);
            font-size: 0.7rem;
        }

        .breadcrumb-inner .current {
            color: var(--accent-gold);
            font-weight: 600;
            max-width: 100%;
            overflow: hidden;
            text-overflow: ellipsis;
            white-space: nowrap;
        }

        /* ============ ARTICLE MAIN ============ */
        .article-main {
            flex: 1;
            padding: 48px 0 64px;
            position: relative;
            z-index: 1;
        }

        .article-layout {
            display: grid;
            grid-template-columns: minmax(0, 1fr) 340px;
            gap: 48px;
            align-items: start;
        }

        .article-content-col {
            min-width: 0;
        }

        /* Article header */
        .article-header {
            margin-bottom: 28px;
        }

        .article-category-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-size: 0.78rem;
            font-weight: 700;
            color: #0A2E1C;
            background: linear-gradient(135deg, var(--accent-gold), var(--accent-gold-amber));
            padding: 6px 16px;
            border-radius: 9999px;
            letter-spacing: 0.3px;
            margin-bottom: 16px;
        }

        .article-title {
            font-size: clamp(1.75rem, 3.2vw, 2.5rem);
            font-weight: 900;
            line-height: 1.25;
            color: var(--text-white);
            letter-spacing: -0.5px;
            margin-bottom: 18px;
        }

        .article-meta {
            display: flex;
            align-items: center;
            gap: 20px;
            flex-wrap: wrap;
            font-size: 0.85rem;
            color: var(--text-slate);
            border-bottom: 1px solid rgba(255, 215, 0, 0.12);
            padding-bottom: 20px;
        }

        .article-meta-item {
            display: flex;
            align-items: center;
            gap: 6px;
        }

        .article-meta-item i {
            color: var(--accent-gold);
            font-size: 0.8rem;
        }

        /* Featured image */
        .article-featured-image {
            border-radius: var(--radius-lg);
            overflow: hidden;
            margin-bottom: 32px;
            box-shadow: var(--shadow-gold);
            border: 1px solid var(--border-gold);
            position: relative;
        }

        .article-featured-image img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }

        /* Article body */
        .article-body {
            font-size: 1.05rem;
            line-height: 1.75;
            color: rgba(255, 255, 255, 0.88);
        }

        .article-body p {
            margin-bottom: 20px;
        }

        .article-body h2 {
            font-size: 1.55rem;
            font-weight: 800;
            color: var(--accent-gold);
            margin: 36px 0 16px;
            letter-spacing: -0.3px;
            line-height: 1.3;
        }

        .article-body h3 {
            font-size: 1.25rem;
            font-weight: 700;
            color: var(--text-white);
            margin: 28px 0 12px;
            line-height: 1.35;
        }

        .article-body ul,
        .article-body ol {
            margin: 0 0 20px 24px;
        }

        .article-body li {
            margin-bottom: 10px;
        }

        .article-body blockquote {
            border-left: 4px solid var(--accent-gold);
            background: rgba(255, 215, 0, 0.06);
            padding: 20px 24px;
            border-radius: 0 var(--radius-md) var(--radius-md) 0;
            margin: 28px 0;
            font-style: italic;
            font-size: 1.1rem;
            color: var(--text-mint);
        }

        .article-body img {
            border-radius: var(--radius-md);
            margin: 24px 0;
            box-shadow: var(--shadow-gold);
        }

        .article-body a {
            color: var(--accent-gold);
            text-decoration: underline;
            text-underline-offset: 3px;
        }

        .article-body a:hover {
            color: var(--accent-gold-amber);
        }

        /* Review summary box */
        .review-summary {
            background: rgba(18, 62, 37, 0.75);
            border: 1px solid var(--border-gold-strong);
            border-radius: var(--radius-lg);
            padding: 28px;
            margin: 32px 0;
            position: relative;
            overflow: hidden;
        }

        .review-summary::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 3px;
            background: linear-gradient(90deg, var(--accent-gold), var(--accent-gold-amber), var(--accent-red));
        }

        .review-summary h3 {
            font-size: 1.25rem;
            font-weight: 800;
            color: var(--accent-gold);
            margin-bottom: 16px;
            display: flex;
            align-items: center;
            gap: 10px;
        }

        .review-summary h3 i {
            font-size: 1.15rem;
        }

        .review-summary ul {
            list-style: none;
            margin: 0;
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 12px 24px;
        }

        .review-summary li {
            display: flex;
            align-items: flex-start;
            gap: 10px;
            font-size: 0.95rem;
            color: var(--text-mint);
            line-height: 1.55;
        }

        .review-summary li i {
            color: var(--accent-gold);
            margin-top: 3px;
            font-size: 0.85rem;
            flex-shrink: 0;
        }

        /* Sidebar */
        .article-sidebar {
            position: sticky;
            top: 80px;
            display: flex;
            flex-direction: column;
            gap: 20px;
        }

        .sidebar-card {
            background: rgba(18, 62, 37, 0.7);
            border: 1px solid var(--border-gold);
            border-radius: var(--radius-md);
            padding: 24px;
            transition: var(--transition-base);
        }

        .sidebar-card:hover {
            border-color: var(--border-gold-strong);
            box-shadow: var(--shadow-gold);
        }

        .sidebar-card h4 {
            font-size: 1rem;
            font-weight: 800;
            color: var(--accent-gold);
            margin-bottom: 14px;
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .sidebar-card h4 i {
            font-size: 0.9rem;
        }

        .sidebar-card p {
            font-size: 0.88rem;
            color: var(--text-mint);
            line-height: 1.65;
            margin-bottom: 14px;
        }

        .sidebar-card .btn-primary {
            display: inline-block;
            width: 100%;
            text-align: center;
            font-size: 0.92rem;
            font-weight: 700;
            color: #0A2E1C;
            background: linear-gradient(135deg, var(--accent-gold), var(--accent-gold-amber));
            padding: 12px 20px;
            border-radius: 9999px;
            border: none;
            cursor: pointer;
            box-shadow: var(--shadow-gold);
            transition: var(--transition-base);
            letter-spacing: 0.2px;
        }

        .sidebar-card .btn-primary:hover {
            box-shadow: var(--shadow-gold-hover);
            transform: translateY(-2px);
        }

        .sidebar-card .btn-primary:active {
            transform: translateY(0);
        }

        .rating-stars {
            display: flex;
            gap: 4px;
            font-size: 1.1rem;
            color: var(--accent-gold);
            margin-bottom: 8px;
        }

        .rating-number {
            font-size: 2rem;
            font-weight: 900;
            color: var(--accent-gold);
            line-height: 1;
        }

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

        .info-list {
            list-style: none;
            margin: 0;
        }

        .info-list li {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 0.88rem;
            color: var(--text-mint);
            padding: 10px 0;
            border-bottom: 1px solid rgba(255, 215, 0, 0.1);
        }

        .info-list li:last-child {
            border-bottom: none;
        }

        .info-list li i {
            color: var(--accent-gold);
            width: 18px;
            text-align: center;
            flex-shrink: 0;
        }

        /* Not found state */
        .not-found-box {
            background: rgba(18, 62, 37, 0.7);
            border: 1px solid var(--border-gold);
            border-radius: var(--radius-lg);
            padding: 56px 32px;
            text-align: center;
        }

        .not-found-box .icon {
            font-size: 3rem;
            color: var(--accent-gold);
            margin-bottom: 20px;
        }

        .not-found-box h2 {
            font-size: 1.6rem;
            font-weight: 800;
            color: var(--text-white);
            margin-bottom: 12px;
        }

        .not-found-box p {
            color: var(--text-slate);
            font-size: 1rem;
            margin-bottom: 24px;
        }

        .not-found-box .btn-home {
            display: inline-block;
            font-size: 0.95rem;
            font-weight: 700;
            color: #0A2E1C;
            background: linear-gradient(135deg, var(--accent-gold), var(--accent-gold-amber));
            padding: 14px 30px;
            border-radius: 9999px;
            box-shadow: var(--shadow-gold);
            transition: var(--transition-base);
        }

        .not-found-box .btn-home:hover {
            box-shadow: var(--shadow-gold-hover);
            transform: translateY(-2px);
        }

        /* ============ CTA SECTION ============ */
        .cta-section {
            margin-top: 48px;
            background: linear-gradient(135deg, rgba(255, 215, 0, 0.08), rgba(211, 47, 47, 0.06));
            border: 1px solid var(--border-gold-strong);
            border-radius: var(--radius-lg);
            padding: 40px 32px;
            position: relative;
            overflow: hidden;
        }

        .cta-section::before {
            content: '';
            position: absolute;
            top: -50%;
            right: -20%;
            width: 300px;
            height: 300px;
            background: radial-gradient(circle, rgba(255, 215, 0, 0.15), transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }

        .cta-content {
            position: relative;
            z-index: 1;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 32px;
            flex-wrap: wrap;
        }

        .cta-text {
            flex: 1;
            min-width: 280px;
        }

        .cta-text h2 {
            font-size: 1.5rem;
            font-weight: 900;
            color: var(--accent-gold);
            margin-bottom: 10px;
            letter-spacing: -0.3px;
        }

        .cta-text p {
            color: var(--text-mint);
            font-size: 1rem;
            line-height: 1.65;
        }

        .cta-actions {
            display: flex;
            gap: 16px;
            flex-shrink: 0;
            flex-wrap: wrap;
        }

        .cta-actions .btn-primary {
            font-size: 0.95rem;
            font-weight: 800;
            color: #0A2E1C;
            background: linear-gradient(135deg, var(--accent-gold), var(--accent-gold-amber));
            padding: 14px 28px;
            border-radius: 9999px;
            border: none;
            cursor: pointer;
            box-shadow: var(--shadow-gold);
            transition: var(--transition-base);
            letter-spacing: 0.3px;
            white-space: nowrap;
        }

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

        .cta-actions .btn-primary:active {
            transform: translateY(0);
        }

        .cta-actions .btn-outline {
            font-size: 0.95rem;
            font-weight: 700;
            color: var(--accent-gold);
            background: transparent;
            padding: 14px 28px;
            border-radius: 9999px;
            border: 1.5px solid var(--border-gold-strong);
            cursor: pointer;
            transition: var(--transition-base);
            white-space: nowrap;
        }

        .cta-actions .btn-outline:hover {
            background: rgba(255, 215, 0, 0.08);
            border-color: var(--accent-gold);
        }

        /* ============ FAQ ============ */
        .faq-section {
            margin-top: 48px;
        }

        .faq-section .section-heading {
            font-size: 1.6rem;
            font-weight: 900;
            color: var(--text-white);
            margin-bottom: 24px;
            letter-spacing: -0.3px;
            display: flex;
            align-items: center;
            gap: 10px;
        }

        .faq-section .section-heading i {
            color: var(--accent-gold);
        }

        .faq-item {
            background: rgba(18, 62, 37, 0.6);
            border: 1px solid var(--border-gold);
            border-radius: var(--radius-md);
            margin-bottom: 12px;
            overflow: hidden;
            transition: var(--transition-base);
        }

        .faq-item:hover {
            border-color: var(--border-gold-strong);
        }

        .faq-question {
            width: 100%;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            padding: 20px 24px;
            background: transparent;
            border: none;
            cursor: pointer;
            color: var(--text-white);
            font-size: 1rem;
            font-weight: 700;
            text-align: left;
            transition: var(--transition-base);
        }

        .faq-question:hover {
            color: var(--accent-gold);
        }

        .faq-question .faq-icon {
            flex-shrink: 0;
            width: 28px;
            height: 28px;
            display: flex;
            align-items: center;
            justify-content: center;
            background: rgba(255, 215, 0, 0.1);
            border-radius: 50%;
            color: var(--accent-gold);
            font-size: 0.8rem;
            transition: var(--transition-base);
        }

        .faq-item.active .faq-icon {
            transform: rotate(180deg);
            background: rgba(255, 215, 0, 0.2);
        }

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.4s cubic-bezier(0.4, 0, 0.2, 1);
        }

        .faq-answer-inner {
            padding: 0 24px 20px;
            color: var(--text-mint);
            font-size: 0.92rem;
            line-height: 1.7;
        }

        /* ============ FOOTER ============ */
        .footer {
            background: rgba(10, 46, 28, 0.9);
            border-top: 1px solid var(--border-gold);
            padding: 56px 0 0;
            position: relative;
            z-index: 1;
            margin-top: 48px;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 1.5fr 1fr 1fr 1fr;
            gap: 40px;
            padding-bottom: 40px;
        }

        .footer-brand {
            display: flex;
            flex-direction: column;
            gap: 16px;
        }

        .footer-brand .logo {
            margin-bottom: 8px;
        }

        .footer-brand p {
            color: #A6ACAF;
            font-size: 0.92rem;
            line-height: 1.7;
            max-width: 360px;
        }

        .footer h3 {
            font-size: 0.95rem;
            font-weight: 800;
            color: var(--accent-gold);
            margin-bottom: 16px;
            letter-spacing: 0.2px;
        }

        .footer ul {
            list-style: none;
            margin: 0;
            padding: 0;
        }

        .footer ul li {
            margin-bottom: 10px;
        }

        .footer ul a {
            color: var(--text-slate);
            font-size: 0.9rem;
            transition: var(--transition-base);
        }

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

        .footer-bottom {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 20px;
            flex-wrap: wrap;
            padding: 20px 0;
            border-top: 1px solid rgba(255, 215, 0, 0.12);
            font-size: 0.82rem;
            color: var(--text-slate);
        }

        .footer-badges {
            display: flex;
            align-items: center;
            gap: 12px;
            flex-wrap: wrap;
        }

        .badge-18 {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 38px;
            height: 38px;
            background: var(--accent-red);
            color: #fff;
            font-weight: 900;
            font-size: 0.85rem;
            border-radius: 50%;
            border: 2px solid var(--accent-gold);
            box-shadow: var(--shadow-crimson);
        }

        .trust-badge {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 0.78rem;
            color: var(--text-mint);
            background: rgba(255, 215, 0, 0.06);
            padding: 8px 14px;
            border-radius: 9999px;
            border: 1px solid var(--border-gold);
        }

        .trust-badge i {
            color: var(--accent-gold);
            font-size: 0.75rem;
        }

        /* ============ FAB ============ */
        .fab-support {
            position: fixed;
            left: 16px;
            bottom: 96px;
            z-index: 50;
            display: flex;
            align-items: center;
            justify-content: center;
            width: 56px;
            height: 56px;
            background: radial-gradient(circle at 35% 30%, #1a1a1a, #0d0d0d);
            border: 3px solid var(--accent-gold);
            border-radius: 50%;
            cursor: pointer;
            box-shadow: 0 4px 20px rgba(255, 215, 0, 0.3);
            transition: var(--transition-base);
            animation: fab-breathe 3s ease-in-out infinite;
            -webkit-tap-highlight-color: transparent;
        }

        .fab-support:hover {
            transform: scale(1.1);
            opacity: 1;
            box-shadow: 0 8px 32px rgba(255, 215, 0, 0.5);
            animation-play-state: paused;
        }

        .fab-support:active {
            transform: scale(0.95) translateY(2px);
            transition-duration: 0.1s;
        }

        .fab-support .fab-icon {
            font-size: 1.4rem;
            color: var(--accent-gold);
            transition: var(--transition-base);
        }

        .fab-support:hover .fab-icon {
            transform: rotate(360deg);
        }

        .fab-support .fab-notification {
            position: absolute;
            top: -2px;
            right: -2px;
            width: 14px;
            height: 14px;
            background: #D32F2F;
            border: 2px solid #0A2E1C;
            border-radius: 50%;
            animation: fab-dot-blink 1.5s ease-in-out infinite;
        }

        @keyframes fab-breathe {
            0%, 100% {
                transform: translateY(0);
                opacity: 0.7;
            }
            50% {
                transform: translateY(-4px);
                opacity: 1;
            }
        }

        @keyframes fab-dot-blink {
            0%, 100% {
                opacity: 1;
                box-shadow: 0 0 8px rgba(211, 47, 47, 0.8);
            }
            50% {
                opacity: 0.4;
                box-shadow: 0 0 4px rgba(211, 47, 47, 0.3);
            }
        }

        /* ============ RESPONSIVE ============ */
        @media (max-width: 1024px) {
            .article-layout {
                grid-template-columns: minmax(0, 1fr) 280px;
                gap: 32px;
            }

            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 32px;
            }
        }

        @media (max-width: 768px) {
            .container {
                padding: 0 16px;
            }

            .header-inner {
                padding: 10px 0;
                min-height: 58px;
            }

            .logo-icon {
                width: 38px;
                height: 38px;
                font-size: 0.95rem;
                border-radius: 10px;
            }

            .logo-text strong {
                font-size: 0.9rem;
            }

            .logo-text span:not(strong) {
                font-size: 0.65rem;
            }

            .nav-links {
                position: fixed;
                top: 58px;
                left: 0;
                right: 0;
                z-index: 99;
                flex-direction: column;
                align-items: stretch;
                gap: 0;
                background: rgba(10, 46, 28, 0.98);
                backdrop-filter: blur(20px);
                padding: 16px 24px;
                border-bottom: 1px solid var(--border-gold);
                transform: translateY(-120%);
                transition: var(--transition-slow);
                max-height: calc(100vh - 58px);
                overflow-y: auto;
                margin-left: 0;
            }

            .nav-links.open {
                transform: translateY(0);
                box-shadow: 0 24px 48px rgba(0, 0, 0, 0.5);
            }

            .nav-links a {
                padding: 14px 4px;
                font-size: 1rem;
                border-bottom: 1px solid rgba(255, 215, 0, 0.08);
            }

            .nav-links a::after {
                display: none;
            }

            .mobile-toggle {
                display: flex;
            }

            .btn-login {
                font-size: 0.78rem;
                padding: 6px 12px;
            }

            .btn-signup {
                font-size: 0.78rem;
                padding: 8px 16px;
            }

            .breadcrumb-bar {
                padding: 10px 16px;
            }

            .breadcrumb-inner {
                font-size: 0.78rem;
                gap: 6px;
            }

            .article-main {
                padding: 32px 0 48px;
            }

            .article-layout {
                grid-template-columns: 1fr;
                gap: 32px;
            }

            .article-sidebar {
                position: static;
                display: grid;
                grid-template-columns: 1fr;
                gap: 16px;
            }

            .article-title {
                font-size: 1.5rem;
            }

            .article-body {
                font-size: 0.98rem;
            }

            .review-summary ul {
                grid-template-columns: 1fr;
            }

            .cta-section {
                padding: 28px 20px;
            }

            .cta-content {
                flex-direction: column;
                align-items: stretch;
                text-align: left;
            }

            .cta-actions {
                justify-content: stretch;
                flex-direction: column;
            }

            .cta-actions .btn-primary,
            .cta-actions .btn-outline {
                text-align: center;
                width: 100%;
            }

            .cta-text h2 {
                font-size: 1.3rem;
            }

            .footer {
                padding: 40px 0 0;
            }

            .footer-grid {
                grid-template-columns: 1fr;
                gap: 28px;
                padding-bottom: 28px;
            }

            .footer-bottom {
                flex-direction: column;
                text-align: center;
                gap: 12px;
                padding: 16px 0;
            }

            .fab-support {
                left: 12px;
                bottom: 80px;
                width: 50px;
                height: 50px;
            }

            .fab-support .fab-icon {
                font-size: 1.2rem;
            }
        }

        @media (max-width: 520px) {
            .logo-text strong {
                font-size: 0.82rem;
            }

            .logo-text span:not(strong) {
                font-size: 0.58rem;
            }

            .logo-icon {
                width: 34px;
                height: 34px;
                font-size: 0.82rem;
                border-radius: 8px;
            }

            .btn-login {
                font-size: 0.72rem;
                padding: 5px 10px;
            }

            .btn-signup {
                font-size: 0.72rem;
                padding: 7px 14px;
            }

            .article-meta {
                gap: 12px;
                font-size: 0.78rem;
            }

            .article-category-badge {
                font-size: 0.7rem;
                padding: 5px 12px;
            }

            .faq-question {
                padding: 16px 18px;
                font-size: 0.92rem;
            }

            .faq-answer-inner {
                padding: 0 18px 16px;
                font-size: 0.88rem;
            }
        }

/* roulang page: category2 */
:root {
            --primary: #0A2E1C;
            --primary-light: #123E25;
            --gold: #FFD700;
            --red: #D32F2F;
            --text: #FFFFFF;
            --muted: #D1F2EB;
            --slate: #A8C6BC;
            --border-gold: rgba(255,215,0,0.35);
            --shadow-gold: 0 8px 30px rgba(255,215,0,0.15);
            --radius-lg: 1.25rem;
            --radius-md: 0.85rem;
            --radius-sm: 0.5rem;
            --font-sans: 'Segoe UI', system-ui, -apple-system, sans-serif;
        }

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

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

        .container {
            width: 100%;
            max-width: 1200px;
            margin-left: auto;
            margin-right: auto;
            padding-left: 1.25rem;
            padding-right: 1.25rem;
        }

        /* Header */
        .site-header {
            background: rgba(10,46,28,0.95);
            backdrop-filter: blur(12px);
            border-bottom: 1px solid rgba(255,215,0,0.15);
            transition: background 0.3s ease;
        }

        .logo-icon {
            font-weight: 800;
            font-size: 1.6rem;
            color: var(--gold);
            background: rgba(255,215,0,0.12);
            border: 2px solid var(--gold);
            border-radius: 12px;
            width: 48px;
            height: 48px;
            display: flex;
            align-items: center;
            justify-content: center;
            letter-spacing: -0.5px;
            flex-shrink: 0;
        }

        .logo-text {
            display: flex;
            flex-direction: column;
            line-height: 1.25;
        }

        .logo-text strong {
            font-size: 1.15rem;
            font-weight: 700;
            color: var(--text);
        }

        .logo-text span {
            font-size: 0.78rem;
            color: var(--muted);
            font-weight: 400;
        }

        .nav-links a {
            position: relative;
            color: var(--muted);
            text-decoration: none;
            font-weight: 500;
            font-size: 0.95rem;
            padding: 0.5rem 0.75rem;
            border-radius: var(--radius-sm);
            transition: all 0.25s ease;
        }

        .nav-links a:hover {
            color: var(--gold);
            background: rgba(255,215,0,0.08);
        }

        .nav-links a.active {
            color: var(--gold);
            background: rgba(255,215,0,0.12);
            border-bottom: 2px solid var(--gold);
        }

        .login-link {
            color: var(--text);
            text-decoration: none;
            font-weight: 600;
            font-size: 0.95rem;
            padding: 0.6rem 1rem;
            transition: color 0.2s;
        }

        .login-link:hover {
            color: var(--gold);
        }

        .signup-btn {
            background: linear-gradient(135deg, #FFD700 0%, #FFBF00 100%);
            color: #1A1A1A;
            font-weight: 700;
            font-size: 0.95rem;
            padding: 0.6rem 1.5rem;
            border-radius: 999px;
            text-decoration: none;
            transition: all 0.25s ease;
            box-shadow: 0 4px 15px rgba(255,215,0,0.3);
            border: 1px solid rgba(255,215,0,0.6);
            white-space: nowrap;
        }

        .signup-btn:hover {
            transform: translateY(-2px);
            box-shadow: 0 6px 20px rgba(255,215,0,0.45);
            background: linear-gradient(135deg, #FFE14D 0%, #FFC800 100%);
        }

        .signup-btn:active {
            transform: translateY(0);
            box-shadow: 0 2px 8px rgba(255,215,0,0.3);
        }

        .mobile-menu-toggle {
            display: none;
            background: transparent;
            border: 1px solid rgba(255,255,255,0.2);
            border-radius: 8px;
            color: var(--text);
            font-size: 1.4rem;
            width: 40px;
            height: 40px;
            align-items: center;
            justify-content: center;
            cursor: pointer;
            transition: all 0.2s;
        }

        .mobile-menu-toggle:hover {
            border-color: var(--gold);
            color: var(--gold);
        }

        .mobile-menu {
            display: none;
            background: rgba(10,46,28,0.98);
            backdrop-filter: blur(12px);
            border-bottom: 1px solid rgba(255,215,0,0.2);
            padding: 1rem 0;
        }

        .mobile-menu .nav-links {
            display: flex;
            flex-direction: column;
            gap: 0.5rem;
            padding: 0.5rem 1.25rem;
        }

        .mobile-menu .nav-links a {
            font-size: 1rem;
            padding: 0.75rem 1rem;
        }

        /* Hero */
        .hero-section {
            position: relative;
            padding-top: 7rem;
            padding-bottom: 4rem;
            background-image: linear-gradient(135deg, rgba(10,46,28,0.95) 0%, rgba(18,62,37,0.92) 100%), url('/assets/images/backpic/back-1.png');
            background-size: cover;
            background-position: center;
            border-bottom: 1px solid rgba(255,215,0,0.2);
        }

        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
            background: rgba(255,215,0,0.12);
            border: 1px solid var(--gold);
            color: var(--gold);
            font-size: 0.8rem;
            font-weight: 600;
            padding: 0.4rem 1rem;
            border-radius: 999px;
            letter-spacing: 0.3px;
            text-transform: uppercase;
        }

        .hero-title {
            font-size: 2.8rem;
            font-weight: 800;
            line-height: 1.2;
            margin: 1rem 0 1.25rem;
            color: var(--text);
        }

        .hero-subtitle {
            font-size: 1.15rem;
            color: var(--muted);
            max-width: 600px;
            line-height: 1.7;
            margin-bottom: 2rem;
        }

        .btn-primary {
            display: inline-flex;
            align-items: center;
            gap: 0.6rem;
            background: linear-gradient(135deg, #FFD700 0%, #FFBF00 100%);
            color: #1A1A1A;
            font-weight: 700;
            font-size: 1rem;
            padding: 0.9rem 2rem;
            border-radius: 999px;
            text-decoration: none;
            transition: all 0.25s ease;
            box-shadow: 0 8px 25px rgba(255,215,0,0.35);
            border: 1px solid rgba(255,215,0,0.6);
        }

        .btn-primary:hover {
            transform: translateY(-3px);
            box-shadow: 0 12px 35px rgba(255,215,0,0.5);
        }

        .btn-secondary {
            display: inline-flex;
            align-items: center;
            gap: 0.6rem;
            background: rgba(255,255,255,0.08);
            color: var(--text);
            border: 1px solid rgba(255,255,255,0.25);
            font-weight: 600;
            font-size: 1rem;
            padding: 0.9rem 1.8rem;
            border-radius: 999px;
            text-decoration: none;
            transition: all 0.25s ease;
        }

        .btn-secondary:hover {
            background: rgba(255,255,255,0.15);
            border-color: var(--gold);
            color: var(--gold);
        }

        .progress-ring-container {
            background: rgba(255,255,255,0.05);
            border: 1px solid rgba(255,215,0,0.25);
            border-radius: var(--radius-lg);
            padding: 1.5rem;
            box-shadow: var(--shadow-gold);
        }

        .ring-wrap {
            position: relative;
            width: 150px;
            height: 150px;
            margin: 0 auto 1.25rem;
        }

        .ring-svg {
            width: 100%;
            height: 100%;
            transform: rotate(-90deg);
        }

        .ring-bg-circle {
            fill: none;
            stroke: rgba(255,255,255,0.1);
            stroke-width: 12;
        }

        .ring-progress-circle {
            fill: none;
            stroke: var(--gold);
            stroke-width: 12;
            stroke-linecap: round;
            stroke-dasharray: 339.292;
            stroke-dashoffset: 50.89; /* approx 85% */
            transition: stroke-dashoffset 0.8s ease;
        }

        .ring-center {
            position: absolute;
            top: 50%;
            left: 50%;
            transform: translate(-50%, -50%);
            text-align: center;
        }

        .ring-center .percent {
            font-size: 2.2rem;
            font-weight: 800;
            color: var(--gold);
        }

        .ring-center .label {
            font-size: 0.75rem;
            color: var(--muted);
            letter-spacing: 0.5px;
            text-transform: uppercase;
        }

        .tier-preview {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 0.75rem;
            margin-top: 1.25rem;
        }

        .tier-item {
            background: rgba(255,255,255,0.05);
            border: 1px solid rgba(255,215,0,0.2);
            border-radius: var(--radius-md);
            padding: 0.9rem 0.5rem;
            text-align: center;
            transition: all 0.2s;
        }

        .tier-item:hover {
            border-color: var(--gold);
            background: rgba(255,215,0,0.1);
            transform: translateY(-2px);
        }

        .tier-item .reward {
            font-size: 1.1rem;
            font-weight: 700;
            color: var(--gold);
        }

        .tier-item .desc {
            font-size: 0.72rem;
            color: var(--slate);
            margin-top: 0.3rem;
        }

        /* Sections */
        .section-pad {
            padding: 4.5rem 0;
        }

        .section-title {
            font-size: 2rem;
            font-weight: 700;
            margin-bottom: 0.75rem;
            color: var(--text);
        }

        .section-lead {
            font-size: 1.05rem;
            color: var(--muted);
            max-width: 700px;
            line-height: 1.7;
            margin-bottom: 2.5rem;
        }

        .stats-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 1.5rem;
        }

        .stat-card {
            background: rgba(255,255,255,0.04);
            border: 1px solid rgba(255,215,0,0.15);
            border-radius: var(--radius-md);
            padding: 1.75rem 1.5rem;
            text-align: center;
            transition: all 0.3s;
        }

        .stat-card:hover {
            background: rgba(255,215,0,0.06);
            border-color: rgba(255,215,0,0.4);
            transform: translateY(-5px);
            box-shadow: 0 10px 25px rgba(0,0,0,0.2);
        }

        .stat-card .stat-value {
            font-size: 2.5rem;
            font-weight: 800;
            color: var(--gold);
            line-height: 1.2;
        }

        .stat-card .stat-label {
            font-size: 0.9rem;
            color: var(--slate);
            margin-top: 0.5rem;
        }

        .service-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 1.5rem;
        }

        .service-card {
            background: rgba(255,255,255,0.03);
            border: 1px solid rgba(255,255,255,0.1);
            border-radius: var(--radius-md);
            padding: 2rem 1.5rem;
            transition: all 0.3s;
        }

        .service-card:hover {
            background: rgba(255,215,0,0.05);
            border-color: rgba(255,215,0,0.3);
            transform: translateY(-5px);
        }

        .service-icon {
            width: 56px;
            height: 56px;
            background: rgba(255,215,0,0.1);
            border: 1px solid var(--gold);
            border-radius: 14px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.6rem;
            color: var(--gold);
            margin-bottom: 1.25rem;
        }

        .service-card h3 {
            font-size: 1.25rem;
            font-weight: 700;
            margin-bottom: 0.75rem;
            color: var(--text);
        }

        .service-card p {
            font-size: 0.95rem;
            color: var(--slate);
            line-height: 1.7;
        }

        .comparison-wrapper {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 2rem;
            align-items: stretch;
        }

        .comparison-card {
            background: rgba(255,255,255,0.03);
            border: 1px solid rgba(255,255,255,0.1);
            border-radius: var(--radius-lg);
            padding: 2rem;
        }

        .comparison-card.highlight {
            background: rgba(255,215,0,0.06);
            border-color: rgba(255,215,0,0.4);
            box-shadow: var(--shadow-gold);
        }

        .comparison-card h3 {
            font-size: 1.4rem;
            font-weight: 700;
            margin-bottom: 1.5rem;
            color: var(--text);
        }

        .comparison-list {
            list-style: none;
            padding: 0;
        }

        .comparison-list li {
            display: flex;
            align-items: flex-start;
            gap: 0.75rem;
            padding: 0.75rem 0;
            border-bottom: 1px solid rgba(255,255,255,0.06);
            color: var(--muted);
            font-size: 0.95rem;
        }

        .comparison-list li:last-child {
            border-bottom: none;
        }

        .comparison-list i {
            font-size: 1rem;
            margin-top: 0.2rem;
            flex-shrink: 0;
        }

        .fa-check-circle {
            color: #2ECC71;
        }

        .fa-times-circle {
            color: #E74C3C;
        }

        .faq-item {
            background: rgba(255,255,255,0.03);
            border: 1px solid rgba(255,255,255,0.08);
            border-radius: var(--radius-md);
            margin-bottom: 1rem;
            overflow: hidden;
            transition: border-color 0.3s;
        }

        .faq-item:hover {
            border-color: rgba(255,215,0,0.3);
        }

        .faq-question {
            width: 100%;
            text-align: left;
            background: transparent;
            border: none;
            color: var(--text);
            font-size: 1.05rem;
            font-weight: 600;
            padding: 1.25rem 1.5rem;
            cursor: pointer;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 1rem;
            transition: color 0.2s;
        }

        .faq-question:hover {
            color: var(--gold);
        }

        .faq-question .fa-chevron-down {
            transition: transform 0.3s;
            flex-shrink: 0;
        }

        .faq-item.open .fa-chevron-down {
            transform: rotate(180deg);
        }

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.35s ease;
            padding: 0 1.5rem;
            color: var(--slate);
            font-size: 0.95rem;
            line-height: 1.7;
        }

        .faq-item.open .faq-answer {
            max-height: 300px;
            padding-bottom: 1.25rem;
        }

        .cta-section {
            background-image: linear-gradient(135deg, rgba(10,46,28,0.95) 0%, rgba(18,62,37,0.95) 100%), url('/assets/images/backpic/back-2.png');
            background-size: cover;
            background-position: center;
            border-top: 1px solid rgba(255,215,0,0.25);
            border-bottom: 1px solid rgba(255,215,0,0.25);
        }

        .cta-form {
            max-width: 560px;
            margin: 0 auto;
            background: rgba(255,255,255,0.05);
            border: 1px solid rgba(255,215,0,0.3);
            border-radius: var(--radius-lg);
            padding: 2rem;
            box-shadow: var(--shadow-gold);
        }

        .form-group {
            margin-bottom: 1.25rem;
        }

        .form-group label {
            display: block;
            font-size: 0.9rem;
            font-weight: 600;
            color: var(--muted);
            margin-bottom: 0.5rem;
        }

        .form-group input {
            width: 100%;
            padding: 0.9rem 1.2rem;
            background: rgba(255,255,255,0.08);
            border: 1px solid rgba(255,255,255,0.2);
            border-radius: var(--radius-sm);
            color: var(--text);
            font-size: 1rem;
            outline: none;
            transition: border-color 0.3s;
        }

        .form-group input:focus {
            border-color: var(--gold);
            box-shadow: 0 0 0 3px rgba(255,215,0,0.15);
        }

        .form-group input::placeholder {
            color: var(--slate);
        }

        .form-hint {
            font-size: 0.8rem;
            color: var(--slate);
            margin-top: 0.75rem;
            text-align: center;
        }

        /* Footer */
        .footer {
            background: #072214;
            border-top: 1px solid rgba(255,215,0,0.15);
            padding: 3.5rem 0 1.5rem;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1.2fr;
            gap: 2.5rem;
            margin-bottom: 2.5rem;
        }

        .footer-brand .logo {
            display: flex;
            align-items: center;
            gap: 1rem;
            text-decoration: none;
            margin-bottom: 1rem;
        }

        .footer h3 {
            font-size: 1rem;
            font-weight: 700;
            color: var(--text);
            margin-bottom: 1.25rem;
        }

        .footer ul {
            list-style: none;
            padding: 0;
        }

        .footer ul li {
            margin-bottom: 0.75rem;
        }

        .footer ul li a {
            color: var(--slate);
            text-decoration: none;
            font-size: 0.9rem;
            transition: color 0.2s;
        }

        .footer ul li a:hover {
            color: var(--gold);
        }

        .footer-bottom {
            border-top: 1px solid rgba(255,255,255,0.08);
            padding-top: 1.5rem;
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            justify-content: space-between;
            gap: 1rem;
        }

        .footer-bottom p {
            color: var(--slate);
            font-size: 0.85rem;
        }

        .footer-badges {
            display: flex;
            flex-wrap: wrap;
            gap: 0.75rem;
        }

        .badge-18,
        .trust-badge {
            display: inline-flex;
            align-items: center;
            gap: 0.4rem;
            padding: 0.4rem 0.8rem;
            border-radius: 999px;
            font-size: 0.75rem;
            font-weight: 600;
            letter-spacing: 0.3px;
        }

        .badge-18 {
            background: #D32F2F;
            color: #fff;
            border: 1px solid #FF5252;
        }

        .trust-badge {
            background: rgba(255,255,255,0.05);
            color: var(--muted);
            border: 1px solid rgba(255,255,255,0.15);
        }

        /* FAB */
        .floating-fab {
            position: fixed;
            left: 1rem;
            bottom: 6rem;
            z-index: 50;
            display: flex;
            align-items: center;
            justify-content: center;
            width: 56px;
            height: 56px;
            background: radial-gradient(circle at 30% 30%, #2a2a2a, #0d0d0d);
            border: 3px solid var(--gold);
            border-radius: 50%;
            box-shadow: 0 4px 20px rgba(255,215,0,0.3);
            opacity: 0.7;
            transition: all 0.25s ease;
            animation: breathe 3s infinite;
            text-decoration: none;
        }

        .floating-fab i {
            color: var(--gold);
            font-size: 1.6rem;
            transition: transform 0.5s;
        }

        .floating-fab:hover {
            opacity: 1;
            transform: scale(1.1);
            box-shadow: 0 6px 30px rgba(255,215,0,0.5);
        }

        .floating-fab:hover i {
            transform: rotate(360deg);
        }

        .floating-fab:active {
            transform: scale(0.95) translateY(2px);
        }

        .fab-notification {
            position: absolute;
            top: -2px;
            right: -2px;
            width: 16px;
            height: 16px;
            background: #E74C3C;
            border: 2px solid #0d0d0d;
            border-radius: 50%;
            animation: blink 1.2s infinite;
        }

        @keyframes breathe {
            0%, 100% { box-shadow: 0 4px 20px rgba(255,215,0,0.3); }
            50% { box-shadow: 0 4px 30px rgba(255,215,0,0.6); }
        }

        @keyframes blink {
            0%, 100% { opacity: 1; }
            50% { opacity: 0.3; }
        }

        /* Responsive */
        @media (max-width: 1024px) {
            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .service-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
            }
            .hero-title {
                font-size: 2.3rem;
            }
        }

        @media (max-width: 768px) {
            .container {
                padding-left: 1rem;
                padding-right: 1rem;
            }
            .mobile-menu-toggle {
                display: flex;
            }
            .nav-links.desktop-nav {
                display: none;
            }
            .header-actions .login-link,
            .header-actions .signup-btn {
                display: none;
            }
            .mobile-menu {
                display: block;
            }
            .header-actions .mobile-visible {
                display: inline-flex;
            }
            .hero-section {
                padding-top: 5.5rem;
                padding-bottom: 3rem;
            }
            .hero-title {
                font-size: 2rem;
            }
            .hero-subtitle {
                font-size: 1rem;
            }
            .tier-preview {
                grid-template-columns: 1fr;
                gap: 0.5rem;
            }
            .stats-grid {
                grid-template-columns: 1fr 1fr;
                gap: 1rem;
            }
            .stat-card .stat-value {
                font-size: 2rem;
            }
            .service-grid {
                grid-template-columns: 1fr;
            }
            .comparison-wrapper {
                grid-template-columns: 1fr;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 2rem;
            }
            .footer-bottom {
                flex-direction: column;
                align-items: flex-start;
            }
            .section-pad {
                padding: 3rem 0;
            }
            .section-title {
                font-size: 1.6rem;
            }
            .cta-form {
                padding: 1.5rem;
            }
            .floating-fab {
                width: 48px;
                height: 48px;
                bottom: 5rem;
            }
            .floating-fab i {
                font-size: 1.3rem;
            }
        }

        @media (max-width: 520px) {
            .stats-grid {
                grid-template-columns: 1fr;
            }
            .hero-title {
                font-size: 1.7rem;
            }
            .btn-primary,
            .btn-secondary {
                width: 100%;
                justify-content: center;
            }
            .tier-preview {
                grid-template-columns: 1fr;
            }
        }

/* roulang page: category3 */
:root {
            --jade-deep: #0A2E1C;
            --jade-forest: #123E25;
            --jade-card: #0F3523;
            --jade-light: #1A4D33;
            --gold-imperial: #FFD700;
            --gold-amber: #FFBF00;
            --red-lucky: #D32F2F;
            --white: #FFFFFF;
            --mint-pale: #D1F2EB;
            --slate: #A0BEB4;
            --border-gold: rgba(255, 215, 0, 0.18);
            --shadow-gold: 0 12px 40px rgba(255, 215, 0, 0.06);
            --shadow-hover: 0 18px 50px rgba(0, 0, 0, 0.35);
            --radius-sm: 8px;
            --radius-md: 14px;
            --radius-lg: 20px;
            --radius-xl: 28px;
            --space-section: 88px;
            --space-section-mobile: 56px;
            --font-base: 16px;
            --transition: 0.3s cubic-bezier(0.25, 0.46, 0.45, 0.94);
        }

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

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

        body {
            font-family: 'Be Vietnam Pro', sans-serif;
            font-size: var(--font-base);
            line-height: 1.65;
            color: var(--mint-pale);
            background: linear-gradient(170deg, var(--jade-deep) 0%, #081F13 45%, var(--jade-forest) 100%);
            min-height: 100vh;
            overflow-x: hidden;
        }

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

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

        button {
            font-family: inherit;
            cursor: pointer;
            border: none;
            background: none;
            transition: all var(--transition);
        }

        input, select, textarea {
            font-family: inherit;
            font-size: 1rem;
            color: var(--white);
        }

        input:focus, textarea:focus {
            outline: 2px solid var(--gold-amber);
            outline-offset: 2px;
        }

        .container {
            max-width: 1160px;
            margin: 0 auto;
            padding: 0 24px;
        }

        /* ===== Typography ===== */
        h1, h2, h3, h4 {
            font-weight: 800;
            line-height: 1.25;
            color: var(--white);
            letter-spacing: -0.02em;
        }

        h1 {
            font-size: clamp(2rem, 4vw, 3.25rem);
            font-weight: 900;
            margin-bottom: 1.25rem;
        }

        h2 {
            font-size: clamp(1.6rem, 2.8vw, 2.35rem);
            margin-bottom: 1rem;
        }

        h3 {
            font-size: 1.1rem;
            font-weight: 700;
        }

        .section-subtitle {
            font-size: 1.1rem;
            color: var(--slate);
            line-height: 1.7;
            max-width: 640px;
        }

        /* ===== Header & Nav ===== */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 100;
            background: rgba(10, 46, 28, 0.92);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            border-bottom: 1px solid var(--border-gold);
            padding: 14px 0;
        }

        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 20px;
            flex-wrap: nowrap;
        }

        .logo {
            display: flex;
            align-items: center;
            gap: 12px;
            flex-shrink: 0;
        }

        .logo-icon {
            width: 48px;
            height: 48px;
            background: linear-gradient(135deg, var(--gold-amber), var(--gold-imperial));
            color: var(--jade-deep);
            font-weight: 900;
            font-size: 0.85rem;
            display: flex;
            align-items: center;
            justify-content: center;
            border-radius: 14px;
            box-shadow: 0 6px 20px rgba(255, 215, 0, 0.3);
            letter-spacing: -0.03em;
        }

        .logo-text {
            display: flex;
            flex-direction: column;
            line-height: 1.3;
        }

        .logo-text strong {
            font-size: 1.15rem;
            font-weight: 800;
            color: var(--white);
            letter-spacing: -0.01em;
        }

        .logo-text span {
            font-size: 0.75rem;
            font-weight: 500;
            color: var(--gold-amber);
            letter-spacing: 0.02em;
        }

        .nav-links {
            display: flex;
            align-items: center;
            gap: 8px;
            margin-left: auto;
        }

        .nav-links a {
            padding: 8px 16px;
            border-radius: 10px;
            font-size: 0.92rem;
            font-weight: 500;
            color: var(--slate);
            white-space: nowrap;
            transition: all var(--transition);
        }

        .nav-links a:hover {
            color: var(--gold-amber);
            background: rgba(255, 215, 0, 0.06);
        }

        .nav-links a.active {
            color: var(--jade-deep);
            background: var(--gold-imperial);
            font-weight: 700;
            box-shadow: 0 4px 16px rgba(255, 215, 0, 0.25);
        }

        .header-actions {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-shrink: 0;
        }

        .btn-login {
            padding: 10px 18px;
            border-radius: 10px;
            font-size: 0.9rem;
            font-weight: 600;
            color: var(--mint-pale);
            border: 1px solid transparent;
            transition: all var(--transition);
            white-space: nowrap;
        }

        .btn-login:hover {
            color: var(--gold-amber);
            border-color: var(--gold-amber);
        }

        .btn-register {
            padding: 10px 22px;
            border-radius: 10px;
            font-size: 0.9rem;
            font-weight: 700;
            background: linear-gradient(135deg, var(--gold-amber), var(--gold-imperial));
            color: var(--jade-deep);
            box-shadow: 0 4px 18px rgba(255, 215, 0, 0.3);
            white-space: nowrap;
        }

        .btn-register:hover {
            transform: translateY(-2px);
            box-shadow: 0 10px 28px rgba(255, 215, 0, 0.4);
        }

        .mobile-menu-btn {
            display: none;
            width: 42px;
            height: 42px;
            border-radius: 10px;
            background: rgba(255, 255, 255, 0.06);
            border: 1px solid var(--border-gold);
            color: var(--gold-amber);
            font-size: 1.2rem;
            align-items: center;
            justify-content: center;
        }

        .mobile-menu-btn:hover {
            background: rgba(255, 215, 0, 0.12);
        }

        /* ===== Hero ===== */
        .hero {
            padding: 140px 0 80px;
            background-image: radial-gradient(ellipse at 20% 20%, rgba(255, 215, 0, 0.08) 0%, transparent 60%),
                              radial-gradient(ellipse at 80% 80%, rgba(26, 77, 51, 0.6) 0%, transparent 60%);
            border-bottom: 1px solid var(--border-gold);
            position: relative;
            overflow: hidden;
        }

        .hero::after {
            content: '';
            position: absolute;
            bottom: -120px;
            right: -120px;
            width: 360px;
            height: 360px;
            background: radial-gradient(circle, rgba(255, 215, 0, 0.1) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }

        .hero-grid {
            display: grid;
            grid-template-columns: 1.15fr 0.85fr;
            gap: 56px;
            align-items: center;
            position: relative;
            z-index: 1;
        }

        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            background: rgba(211, 47, 47, 0.18);
            border: 1px solid rgba(211, 47, 47, 0.5);
            color: #FF6B6B;
            font-weight: 600;
            font-size: 0.82rem;
            letter-spacing: 0.06em;
            text-transform: uppercase;
            padding: 8px 16px;
            border-radius: 50px;
            margin-bottom: 1.5rem;
        }

        .hero-badge i {
            animation: pulse-badge 2s ease-in-out infinite;
        }

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

        .hero h1 {
            color: var(--white);
        }

        .hero h1 .accent-gold {
            color: var(--gold-imperial);
        }

        .hero-sub {
            font-size: 1.12rem;
            color: var(--slate);
            line-height: 1.75;
            max-width: 540px;
            margin-bottom: 2rem;
        }

        .hero-countdown {
            display: flex;
            align-items: center;
            gap: 14px;
            flex-wrap: wrap;
            margin-bottom: 2rem;
        }

        .countdown-label {
            font-size: 0.85rem;
            font-weight: 600;
            color: var(--slate);
            letter-spacing: 0.04em;
        }

        .countdown-timer {
            display: flex;
            gap: 8px;
        }

        .countdown-unit {
            background: rgba(0, 0, 0, 0.4);
            border: 1px solid var(--border-gold);
            border-radius: 10px;
            padding: 8px 12px;
            text-align: center;
            min-width: 56px;
        }

        .countdown-unit span {
            display: block;
        }

        .countdown-unit .num {
            font-size: 1.3rem;
            font-weight: 800;
            color: var(--gold-imperial);
        }

        .countdown-unit .label {
            font-size: 0.68rem;
            color: var(--slate);
            letter-spacing: 0.05em;
            text-transform: uppercase;
        }

        .hero-buttons {
            display: flex;
            gap: 14px;
            flex-wrap: wrap;
        }

        .btn-primary-gold {
            padding: 14px 32px;
            border-radius: 14px;
            font-size: 1rem;
            font-weight: 700;
            background: linear-gradient(135deg, var(--gold-amber), var(--gold-imperial));
            color: var(--jade-deep);
            box-shadow: 0 8px 24px rgba(255, 215, 0, 0.3);
            transition: all var(--transition);
            display: inline-flex;
            align-items: center;
            gap: 10px;
        }

        .btn-primary-gold:hover {
            transform: translateY(-3px);
            box-shadow: 0 14px 36px rgba(255, 215, 0, 0.4);
        }

        .btn-outline-light {
            padding: 14px 32px;
            border-radius: 14px;
            font-size: 1rem;
            font-weight: 600;
            background: transparent;
            color: var(--mint-pale);
            border: 1.5px solid rgba(209, 242, 235, 0.3);
            transition: all var(--transition);
            display: inline-flex;
            align-items: center;
            gap: 10px;
        }

        .btn-outline-light:hover {
            border-color: var(--gold-amber);
            color: var(--gold-amber);
            background: rgba(255, 215, 0, 0.05);
        }

        .hero-visual {
            display: flex;
            justify-content: center;
            align-items: center;
        }

        .hero-visual img {
            width: 100%;
            max-width: 420px;
            border-radius: var(--radius-xl);
            border: 1px solid var(--border-gold);
            box-shadow: var(--shadow-hover);
            transition: transform var(--transition);
        }

        .hero-visual img:hover {
            transform: translateY(-6px);
        }

        /* ===== Metrics ===== */
        .metrics-section {
            padding: var(--space-section) 0;
            background: rgba(0, 0, 0, 0.25);
            border-bottom: 1px solid var(--border-gold);
        }

        .metrics-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
        }

        .metric-card {
            text-align: center;
            padding: 28px 20px;
            background: rgba(15, 53, 35, 0.6);
            border: 1px solid var(--border-gold);
            border-radius: var(--radius-md);
            transition: all var(--transition);
        }

        .metric-card:hover {
            border-color: var(--gold-amber);
            box-shadow: var(--shadow-gold);
            transform: translateY(-3px);
        }

        .metric-number {
            font-size: 2.2rem;
            font-weight: 900;
            color: var(--gold-imperial);
            margin-bottom: 6px;
            letter-spacing: -0.03em;
        }

        .metric-label {
            font-size: 0.85rem;
            color: var(--slate);
            font-weight: 500;
            letter-spacing: 0.01em;
        }

        /* ===== Steps / Process ===== */
        .steps-section {
            padding: var(--space-section) 0;
        }

        .section-header {
            display: flex;
            align-items: flex-start;
            justify-content: space-between;
            margin-bottom: 48px;
            gap: 30px;
            flex-wrap: wrap;
        }

        .section-header-left h2 {
            margin-bottom: 10px;
        }

        .section-tag {
            display: inline-block;
            background: rgba(255, 215, 0, 0.1);
            border: 1px solid rgba(255, 215, 0, 0.3);
            color: var(--gold-amber);
            font-size: 0.75rem;
            font-weight: 700;
            letter-spacing: 0.08em;
            text-transform: uppercase;
            padding: 6px 14px;
            border-radius: 50px;
            margin-bottom: 14px;
        }

        .steps-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 18px;
        }

        .step-card {
            position: relative;
            padding: 28px 22px;
            background: rgba(15, 53, 35, 0.55);
            border: 1px solid var(--border-gold);
            border-radius: var(--radius-md);
            transition: all var(--transition);
        }

        .step-card:hover {
            border-color: var(--gold-amber);
            box-shadow: var(--shadow-gold);
            transform: translateY(-4px);
        }

        .step-number {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 40px;
            height: 40px;
            background: linear-gradient(135deg, var(--gold-amber), var(--gold-imperial));
            color: var(--jade-deep);
            font-weight: 900;
            font-size: 1.1rem;
            border-radius: 12px;
            margin-bottom: 16px;
            box-shadow: 0 4px 14px rgba(255, 215, 0, 0.25);
        }

        .step-card h3 {
            margin-bottom: 10px;
            font-size: 1.05rem;
        }

        .step-card p {
            font-size: 0.9rem;
            color: var(--slate);
            line-height: 1.65;
        }

        /* ===== Benefits ===== */
        .benefits-section {
            padding: var(--space-section) 0;
            background: rgba(0, 0, 0, 0.25);
            border-top: 1px solid var(--border-gold);
            border-bottom: 1px solid var(--border-gold);
        }

        .benefits-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 20px;
            margin-top: 40px;
        }

        .benefit-item {
            display: flex;
            gap: 18px;
            padding: 24px;
            background: rgba(15, 53, 35, 0.55);
            border: 1px solid var(--border-gold);
            border-radius: var(--radius-md);
            transition: all var(--transition);
        }

        .benefit-item:hover {
            border-color: var(--gold-amber);
            box-shadow: var(--shadow-gold);
            transform: translateX(4px);
        }

        .benefit-icon {
            width: 52px;
            height: 52px;
            flex-shrink: 0;
            display: flex;
            align-items: center;
            justify-content: center;
            background: rgba(255, 215, 0, 0.12);
            border: 1px solid rgba(255, 215, 0, 0.3);
            border-radius: 14px;
            color: var(--gold-amber);
            font-size: 1.35rem;
        }

        .benefit-content h3 {
            margin-bottom: 8px;
        }

        .benefit-content p {
            font-size: 0.92rem;
            color: var(--slate);
            line-height: 1.65;
        }

        /* ===== FAQ ===== */
        .faq-section {
            padding: var(--space-section) 0;
        }

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

        .faq-item {
            border: 1px solid var(--border-gold);
            border-radius: var(--radius-md);
            margin-bottom: 14px;
            background: rgba(15, 53, 35, 0.45);
            overflow: hidden;
            transition: all var(--transition);
        }

        .faq-item:hover {
            border-color: rgba(255, 215, 0, 0.35);
        }

        .faq-item.active {
            border-color: var(--gold-amber);
            box-shadow: var(--shadow-gold);
        }

        .faq-question {
            width: 100%;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            padding: 20px 24px;
            text-align: left;
            font-size: 1rem;
            font-weight: 600;
            color: var(--white);
            background: none;
            transition: all var(--transition);
        }

        .faq-question:hover {
            color: var(--gold-amber);
        }

        .faq-question i {
            color: var(--gold-amber);
            font-size: 0.95rem;
            transition: transform var(--transition);
        }

        .faq-item.active .faq-question i {
            transform: rotate(180deg);
        }

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.4s ease, padding 0.4s ease;
        }

        .faq-item.active .faq-answer {
            max-height: 400px;
        }

        .faq-answer p {
            padding: 0 24px 20px;
            font-size: 0.92rem;
            color: var(--slate);
            line-height: 1.7;
        }

        /* ===== CTA ===== */
        .cta-section {
            padding: var(--space-section) 0;
            background: linear-gradient(135deg, rgba(255, 215, 0, 0.06) 0%, rgba(15, 53, 35, 0.6) 100%);
            border-top: 1px solid var(--border-gold);
        }

        .cta-card {
            max-width: 720px;
            margin: 0 auto;
            background: rgba(15, 53, 35, 0.75);
            border: 1.5px solid var(--gold-amber);
            border-radius: var(--radius-xl);
            padding: 48px 40px;
            box-shadow: var(--shadow-hover);
            text-align: center;
        }

        .cta-card h2 {
            margin-bottom: 14px;
        }

        .cta-card .cta-sub {
            color: var(--slate);
            font-size: 1rem;
            line-height: 1.7;
            margin-bottom: 32px;
            max-width: 500px;
            margin-left: auto;
            margin-right: auto;
        }

        .cta-form {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 16px;
            text-align: left;
        }

        .form-group {
            display: flex;
            flex-direction: column;
            gap: 6px;
        }

        .form-group.full {
            grid-column: 1 / -1;
        }

        .form-group label {
            font-size: 0.85rem;
            font-weight: 600;
            color: var(--mint-pale);
        }

        .form-group input {
            padding: 14px 18px;
            border-radius: 12px;
            background: rgba(0, 0, 0, 0.35);
            border: 1px solid var(--border-gold);
            color: var(--white);
            transition: all var(--transition);
            font-size: 0.95rem;
        }

        .form-group input:focus {
            border-color: var(--gold-amber);
            background: rgba(0, 0, 0, 0.5);
        }

        .btn-submit {
            grid-column: 1 / -1;
            padding: 16px 32px;
            border-radius: 14px;
            font-size: 1.05rem;
            font-weight: 700;
            background: linear-gradient(135deg, var(--gold-amber), var(--gold-imperial));
            color: var(--jade-deep);
            box-shadow: 0 8px 24px rgba(255, 215, 0, 0.3);
            transition: all var(--transition);
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 10px;
        }

        .btn-submit:hover {
            transform: translateY(-3px);
            box-shadow: 0 14px 36px rgba(255, 215, 0, 0.4);
        }

        .form-note {
            grid-column: 1 / -1;
            text-align: center;
            font-size: 0.8rem;
            color: var(--slate);
        }

        /* ===== Footer ===== */
        .footer {
            padding: 64px 0 32px;
            background: rgba(0, 0, 0, 0.45);
            border-top: 1px solid var(--border-gold);
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 1.5fr 1fr 1fr 1fr;
            gap: 40px;
            margin-bottom: 40px;
        }

        .footer-brand .logo {
            margin-bottom: 16px;
        }

        .footer-brand p {
            font-size: 0.92rem;
            line-height: 1.7;
            color: var(--slate);
            max-width: 320px;
        }

        .footer h3 {
            font-size: 0.95rem;
            font-weight: 700;
            color: var(--gold-amber);
            margin-bottom: 18px;
            letter-spacing: 0.03em;
        }

        .footer ul {
            list-style: none;
        }

        .footer ul li {
            margin-bottom: 10px;
        }

        .footer ul li a {
            font-size: 0.88rem;
            color: var(--slate);
            transition: all var(--transition);
        }

        .footer ul li a:hover {
            color: var(--gold-amber);
            padding-left: 4px;
        }

        .footer-bottom {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding-top: 28px;
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            flex-wrap: wrap;
            gap: 16px;
        }

        .footer-bottom p {
            font-size: 0.82rem;
            color: var(--slate);
        }

        .footer-badges {
            display: flex;
            gap: 10px;
            flex-wrap: wrap;
        }

        .badge-18 {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 40px;
            height: 40px;
            border-radius: 50%;
            background: var(--red-lucky);
            color: var(--white);
            font-weight: 900;
            font-size: 0.85rem;
            border: 2px solid rgba(255, 255, 255, 0.6);
        }

        .trust-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 8px 14px;
            border-radius: 8px;
            background: rgba(255, 255, 255, 0.06);
            border: 1px solid var(--border-gold);
            font-size: 0.78rem;
            font-weight: 500;
            color: var(--mint-pale);
        }

        .trust-badge i {
            color: var(--gold-amber);
        }

        /* ===== FAB ===== */
        .fab {
            position: fixed;
            left: 16px;
            bottom: 96px;
            z-index: 50;
            width: 60px;
            height: 60px;
            border-radius: 50%;
            background: linear-gradient(135deg, #1A1A1A, #0A2E1C);
            border: 2px solid var(--gold-imperial);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--gold-imperial);
            font-size: 1.5rem;
            cursor: pointer;
            opacity: 0.7;
            box-shadow: 0 4px 20px rgba(255, 215, 0, 0.3);
            transition: all var(--transition);
            animation: fab-float 3s ease-in-out infinite;
        }

        .fab:hover {
            opacity: 1;
            transform: scale(1.1);
            box-shadow: 0 8px 32px rgba(255, 215, 0, 0.45);
        }

        .fab:active {
            transform: scale(0.95) translateY(2px);
        }

        .fab .notification-dot {
            position: absolute;
            top: -4px;
            right: -4px;
            width: 16px;
            height: 16px;
            background: var(--red-lucky);
            border: 2px solid var(--white);
            border-radius: 50%;
            animation: blink-dot 2s ease-in-out infinite;
        }

        @keyframes fab-float {
            0%, 100% { transform: translateY(0); }
            50% { transform: translateY(-8px); }
        }

        @keyframes blink-dot {
            0%, 100% { opacity: 1; }
            50% { opacity: 0.3; }
        }

        /* ===== Responsive ===== */
        @media (max-width: 1024px) {
            .hero-grid {
                grid-template-columns: 1fr;
                gap: 40px;
                text-align: center;
            }
            .hero-sub, .hero-badge, .hero-countdown {
                margin-left: auto;
                margin-right: auto;
            }
            .hero-buttons {
                justify-content: center;
            }
            .hero-visual img {
                max-width: 360px;
                margin: 0 auto;
            }
            .metrics-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 14px;
            }
            .steps-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 14px;
            }
            .benefits-grid {
                grid-template-columns: 1fr;
                gap: 14px;
            }
            .footer-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 30px;
            }
            .section-header {
                flex-direction: column;
                gap: 16px;
            }
        }

        @media (max-width: 768px) {
            .nav-links {
                display: none;
                position: absolute;
                top: 100%;
                left: 0;
                right: 0;
                background: rgba(10, 46, 28, 0.98);
                border-bottom: 1px solid var(--border-gold);
                flex-direction: column;
                padding: 16px 24px;
                gap: 6px;
                margin-left: 0;
                width: 100%;
            }
            .nav-links.open {
                display: flex;
            }
            .nav-links a {
                width: 100%;
                text-align: left;
                padding: 12px 16px;
            }
            .mobile-menu-btn {
                display: flex;
            }
            .header-actions {
                gap: 6px;
            }
            .btn-login {
                padding: 8px 12px;
                font-size: 0.82rem;
            }
            .btn-register {
                padding: 8px 16px;
                font-size: 0.82rem;
            }
            .hero {
                padding: 110px 0 56px;
            }
            .metrics-grid {
                grid-template-columns: 1fr 1fr;
                gap: 10px;
            }
            .metric-number {
                font-size: 1.6rem;
            }
            .steps-grid {
                grid-template-columns: 1fr;
                gap: 12px;
            }
            .cta-card {
                padding: 32px 20px;
            }
            .cta-form {
                grid-template-columns: 1fr;
            }
            .form-group.full {
                grid-column: 1;
            }
            .btn-submit {
                grid-column: 1;
            }
            .form-note {
                grid-column: 1;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .footer-bottom {
                flex-direction: column;
                align-items: flex-start;
                gap: 12px;
            }
            :root {
                --space-section: 56px;
            }
            .benefit-item {
                padding: 18px;
                gap: 14px;
            }
            .benefit-icon {
                width: 42px;
                height: 42px;
                font-size: 1.1rem;
            }
        }

        @media (max-width: 520px) {
            .container {
                padding: 0 16px;
            }
            .hero-buttons {
                flex-direction: column;
                width: 100%;
            }
            .btn-primary-gold, .btn-outline-light {
                width: 100%;
                justify-content: center;
            }
            .metrics-grid {
                grid-template-columns: 1fr;
                gap: 8px;
            }
            .metric-card {
                padding: 18px 14px;
            }
            .metric-number {
                font-size: 1.4rem;
            }
            .countdown-unit {
                min-width: 44px;
                padding: 6px 8px;
            }
            .countdown-unit .num {
                font-size: 1.05rem;
            }
            .hero h1 {
                font-size: 1.7rem;
            }
            .hero-sub {
                font-size: 0.95rem;
            }
            .fab {
                width: 50px;
                height: 50px;
                font-size: 1.2rem;
                left: 12px;
                bottom: 80px;
            }
        }