/* roulang page: index */
:root {
            --primary: #0d1b2a;
            --primary-2: #1b2d45;
            --primary-3: #243b55;
            --accent: #c9a35c;
            --accent-light: #e0c58a;
            --accent-dark: #a8863f;
            --bg: #f7f4ef;
            --bg-card: #ffffff;
            --text: #1a1f2e;
            --text-2: #4a5268;
            --text-3: #7a8298;
            --text-on-dark: #edeae2;
            --text-on-dark-2: #b8b2a6;
            --border: #e2ddd2;
            --border-dark: #2a3b52;
            --radius-lg: 20px;
            --radius-md: 14px;
            --radius-sm: 10px;
            --radius-xs: 6px;
            --shadow-sm: 0 2px 12px rgba(13, 27, 42, 0.05);
            --shadow-md: 0 8px 28px rgba(13, 27, 42, 0.09);
            --shadow-lg: 0 16px 48px rgba(13, 27, 42, 0.14);
            --shadow-accent: 0 8px 28px rgba(201, 163, 92, 0.22);
            --transition: 0.25s cubic-bezier(0.4, 0, 0.2, 1);
            --font: 'PingFang SC', 'Microsoft YaHei', 'Noto Sans SC', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
            --sidebar-w: 264px;
            --gradient-brand: linear-gradient(135deg, #0d1b2a 0%, #1b2d45 55%, #243b55 100%);
            --gradient-accent: linear-gradient(135deg, #c9a35c 0%, #e0c58a 50%, #c9a35c 100%);
            --gradient-dark: linear-gradient(135deg, #0d1b2a 0%, #1b2d45 70%, #243b55 100%);
        }
        *,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        html {
            scroll-behavior: smooth;
            -webkit-text-size-adjust: 100%;
        }
        body {
            font-family: var(--font);
            font-size: 16px;
            line-height: 1.7;
            color: var(--text);
            background: var(--bg);
            min-height: 100vh;
            overflow-x: hidden;
        }
        img {
            max-width: 100%;
            display: block;
            height: auto;
        }
        a {
            color: inherit;
            text-decoration: none;
            transition: var(--transition);
        }
        button,
        input,
        textarea,
        select {
            font-family: inherit;
            font-size: inherit;
            outline: none;
            border: none;
            background: none;
        }
        button {
            cursor: pointer;
        }
        ul,
        ol {
            list-style: none;
        }
        :focus-visible {
            outline: 3px solid var(--accent);
            outline-offset: 2px;
        }

        /* Sidebar */
        .sidebar {
            position: fixed;
            top: 0;
            left: 0;
            width: var(--sidebar-w);
            height: 100vh;
            background: var(--gradient-brand);
            color: var(--text-on-dark);
            display: flex;
            flex-direction: column;
            z-index: 100;
            border-right: 1px solid rgba(255, 255, 255, 0.06);
            transition: transform var(--transition);
        }
        .sidebar__brand {
            padding: 28px 24px 20px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.08);
        }
        .sidebar__logo {
            font-size: 22px;
            font-weight: 700;
            letter-spacing: 0.5px;
            color: #fff;
            line-height: 1.35;
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .sidebar__logo .logo-mark {
            width: 38px;
            height: 38px;
            border-radius: 10px;
            background: var(--gradient-accent);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 18px;
            color: #0d1b2a;
            flex-shrink: 0;
            font-weight: 800;
        }
        .sidebar__nav {
            flex: 1;
            padding: 18px 14px;
            overflow-y: auto;
        }
        .sidebar__nav-label {
            font-size: 11px;
            text-transform: uppercase;
            letter-spacing: 1.6px;
            color: rgba(237, 234, 226, 0.45);
            padding: 8px 12px 10px;
            font-weight: 600;
        }
        .sidebar__nav-item {
            display: flex;
            align-items: center;
            gap: 12px;
            padding: 12px 16px;
            border-radius: var(--radius-sm);
            color: var(--text-on-dark-2);
            font-size: 15px;
            font-weight: 500;
            transition: var(--transition);
            margin-bottom: 2px;
        }
        .sidebar__nav-item:hover {
            background: rgba(255, 255, 255, 0.07);
            color: #fff;
        }
        .sidebar__nav-item.active {
            background: rgba(201, 163, 92, 0.18);
            color: var(--accent-light);
            font-weight: 600;
            box-shadow: inset 3px 0 0 var(--accent);
        }
        .sidebar__nav-item .nav-icon {
            width: 20px;
            text-align: center;
            font-size: 16px;
            flex-shrink: 0;
        }
        .sidebar__footer {
            padding: 18px 20px;
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            font-size: 12px;
            color: rgba(237, 234, 226, 0.5);
        }
        .sidebar__footer a {
            color: rgba(237, 234, 226, 0.6);
        }
        .sidebar__footer a:hover {
            color: var(--accent-light);
        }

        /* Mobile top bar */
        .mobile-bar {
            display: none;
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 200;
            background: var(--gradient-brand);
            color: #fff;
            padding: 12px 16px;
            align-items: center;
            justify-content: space-between;
            box-shadow: var(--shadow-md);
        }
        .mobile-bar__logo {
            font-size: 18px;
            font-weight: 700;
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .mobile-bar__logo .logo-mark {
            width: 30px;
            height: 30px;
            border-radius: 8px;
            background: var(--gradient-accent);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 14px;
            color: #0d1b2a;
            font-weight: 800;
        }
        .mobile-bar__toggle {
            width: 40px;
            height: 40px;
            border-radius: 8px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 22px;
            color: #fff;
            transition: var(--transition);
        }
        .mobile-bar__toggle:hover {
            background: rgba(255, 255, 255, 0.1);
        }
        .mobile-overlay {
            display: none;
            position: fixed;
            inset: 0;
            background: rgba(0, 0, 0, 0.5);
            z-index: 150;
        }
        .mobile-overlay.show {
            display: block;
        }

        /* Main content */
        .main-content {
            margin-left: var(--sidebar-w);
            min-height: 100vh;
        }

        /* Container */
        .container {
            max-width: 1120px;
            margin: 0 auto;
            padding: 0 36px;
        }
        .container--wide {
            max-width: 1240px;
        }

        /* Hero */
        .hero {
            position: relative;
            background-image: url('/assets/images/backpic/back-2.webp');
            background-size: cover;
            background-position: center;
            min-height: 720px;
            display: flex;
            align-items: center;
            border-radius: 0 0 var(--radius-lg) 0;
            overflow: hidden;
            margin-bottom: 8px;
        }
        .hero::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(100deg, rgba(13, 27, 42, 0.92) 20%, rgba(13, 27, 42, 0.55) 60%, rgba(27, 45, 69, 0.35) 100%);
        }
        .hero__content {
            position: relative;
            z-index: 2;
            color: #fff;
            padding: 80px 0 80px;
        }
        .hero__badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: rgba(201, 163, 92, 0.2);
            border: 1px solid rgba(201, 163, 92, 0.45);
            color: var(--accent-light);
            padding: 7px 18px;
            border-radius: 50px;
            font-size: 13px;
            font-weight: 600;
            letter-spacing: 0.5px;
            margin-bottom: 20px;
            backdrop-filter: blur(8px);
        }
        .hero__badge .dot {
            width: 8px;
            height: 8px;
            border-radius: 50%;
            background: var(--accent);
            animation: pulse 1.8s infinite;
        }
        @keyframes pulse {
            0%, 100% { opacity: 1; transform: scale(1); }
            50% { opacity: 0.5; transform: scale(1.4); }
        }
        .hero h1 {
            font-size: 44px;
            line-height: 1.2;
            font-weight: 800;
            letter-spacing: 0.5px;
            margin-bottom: 18px;
            max-width: 640px;
        }
        .hero h1 .highlight {
            background: var(--gradient-accent);
            -webkit-background-clip: text;
            background-clip: text;
            color: transparent;
        }
        .hero__desc {
            font-size: 17px;
            line-height: 1.9;
            color: rgba(237, 234, 226, 0.85);
            max-width: 560px;
            margin-bottom: 34px;
        }
        .hero__actions {
            display: flex;
            flex-wrap: wrap;
            gap: 14px;
            margin-bottom: 40px;
        }
        .btn {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 14px 28px;
            border-radius: var(--radius-md);
            font-size: 15px;
            font-weight: 700;
            letter-spacing: 0.3px;
            transition: var(--transition);
            white-space: nowrap;
        }
        .btn--accent {
            background: var(--gradient-accent);
            color: #0d1b2a;
            box-shadow: var(--shadow-accent);
        }
        .btn--accent:hover {
            transform: translateY(-2px);
            box-shadow: 0 12px 36px rgba(201, 163, 92, 0.35);
        }
        .btn--accent:active {
            transform: translateY(0);
            box-shadow: 0 4px 16px rgba(201, 163, 92, 0.25);
        }
        .btn--ghost {
            background: rgba(255, 255, 255, 0.08);
            color: #fff;
            border: 1.5px solid rgba(255, 255, 255, 0.3);
            backdrop-filter: blur(6px);
        }
        .btn--ghost:hover {
            background: rgba(255, 255, 255, 0.16);
            border-color: rgba(255, 255, 255, 0.5);
            transform: translateY(-2px);
        }
        .btn--ghost:active {
            transform: translateY(0);
        }
        .btn--dark {
            background: var(--primary);
            color: #fff;
        }
        .btn--dark:hover {
            background: var(--primary-2);
            transform: translateY(-2px);
            box-shadow: var(--shadow-md);
        }
        .btn--sm {
            padding: 10px 20px;
            font-size: 13px;
            border-radius: var(--radius-sm);
        }
        .hero__stats {
            display: flex;
            flex-wrap: wrap;
            gap: 28px;
        }
        .hero__stat {
            display: flex;
            flex-direction: column;
        }
        .hero__stat-num {
            font-size: 28px;
            font-weight: 800;
            color: var(--accent-light);
            line-height: 1.2;
        }
        .hero__stat-label {
            font-size: 13px;
            color: rgba(237, 234, 226, 0.6);
        }
        .hero__visual {
            position: absolute;
            right: 40px;
            top: 50%;
            transform: translateY(-50%);
            z-index: 2;
            display: flex;
            flex-direction: column;
            gap: 16px;
            align-items: center;
        }
        .countdown-ring {
            width: 150px;
            height: 150px;
            position: relative;
            display: flex;
            align-items: center;
            justify-content: center;
        }
        .countdown-ring svg {
            position: absolute;
            inset: 0;
            transform: rotate(-90deg);
        }
        .countdown-ring .ring-bg {
            fill: none;
            stroke: rgba(255, 255, 255, 0.15);
            stroke-width: 6;
        }
        .countdown-ring .ring-progress {
            fill: none;
            stroke: var(--accent);
            stroke-width: 6;
            stroke-linecap: round;
            stroke-dasharray: 402;
            stroke-dashoffset: 100;
            transition: stroke-dashoffset 0.6s ease;
        }
        .countdown-ring__text {
            text-align: center;
            z-index: 2;
            color: #fff;
        }
        .countdown-ring__days {
            font-size: 40px;
            font-weight: 800;
            line-height: 1;
            color: var(--accent-light);
        }
        .countdown-ring__label {
            font-size: 12px;
            color: rgba(237, 234, 226, 0.7);
            letter-spacing: 1px;
        }
        .hero__visual-card {
            background: rgba(255, 255, 255, 0.08);
            backdrop-filter: blur(12px);
            border: 1px solid rgba(255, 255, 255, 0.15);
            border-radius: var(--radius-md);
            padding: 14px 20px;
            color: #fff;
            font-size: 13px;
            text-align: center;
            max-width: 200px;
        }
        .hero__visual-card strong {
            display: block;
            font-size: 16px;
            color: var(--accent-light);
            margin-bottom: 2px;
        }
        .carousel-dots {
            display: flex;
            gap: 6px;
            justify-content: center;
            margin-top: 6px;
        }
        .carousel-dots span {
            width: 8px;
            height: 8px;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.3);
            cursor: pointer;
            transition: var(--transition);
        }
        .carousel-dots span.active {
            background: var(--accent);
            width: 22px;
            border-radius: 4px;
        }

        /* Section base */
        .section {
            padding: 70px 0;
        }
        .section--alt {
            background: #fff;
        }
        .section--dark {
            background: var(--gradient-dark);
            color: var(--text-on-dark);
        }
        .section__head {
            margin-bottom: 36px;
        }
        .section__tag {
            display: inline-block;
            font-size: 13px;
            font-weight: 700;
            letter-spacing: 1.5px;
            color: var(--accent-dark);
            text-transform: uppercase;
            margin-bottom: 10px;
        }
        .section--dark .section__tag {
            color: var(--accent-light);
        }
        .section__title {
            font-size: 32px;
            font-weight: 800;
            line-height: 1.3;
            color: var(--text);
            margin-bottom: 14px;
        }
        .section--dark .section__title {
            color: #fff;
        }
        .section__desc {
            font-size: 16px;
            line-height: 1.85;
            color: var(--text-2);
            max-width: 720px;
        }
        .section--dark .section__desc {
            color: var(--text-on-dark-2);
        }

        /* Info section */
        .info-grid {
            display: grid;
            grid-template-columns: 1fr 340px;
            gap: 28px;
        }
        .info-list {
            display: flex;
            flex-direction: column;
            gap: 14px;
        }
        .info-item {
            display: flex;
            gap: 16px;
            align-items: flex-start;
            background: var(--bg-card);
            border-radius: var(--radius-md);
            padding: 18px 20px;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border);
            transition: var(--transition);
        }
        .info-item:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-2px);
            border-color: rgba(201, 163, 92, 0.4);
        }
        .info-item__num {
            font-size: 13px;
            font-weight: 700;
            color: var(--accent-dark);
            background: rgba(201, 163, 92, 0.15);
            border-radius: var(--radius-xs);
            padding: 4px 10px;
            flex-shrink: 0;
            min-width: 36px;
            text-align: center;
        }
        .info-item__body h3 {
            font-size: 16px;
            font-weight: 700;
            margin-bottom: 4px;
            color: var(--text);
        }
        .info-item__body p {
            font-size: 14px;
            color: var(--text-3);
            line-height: 1.6;
        }
        .info-item__body a {
            color: var(--accent-dark);
            font-weight: 600;
        }
        .info-item__body a:hover {
            text-decoration: underline;
        }
        .info-sidebar {
            display: flex;
            flex-direction: column;
            gap: 16px;
        }
        .info-sidebar__card {
            background: var(--bg-card);
            border-radius: var(--radius-md);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border);
        }
        .info-sidebar__card img {
            width: 100%;
            height: 160px;
            object-fit: cover;
        }
        .info-sidebar__card-body {
            padding: 16px 18px;
        }
        .info-sidebar__card-body h4 {
            font-size: 15px;
            font-weight: 700;
            margin-bottom: 6px;
        }
        .info-sidebar__card-body p {
            font-size: 13px;
            color: var(--text-3);
            line-height: 1.55;
        }
        .info-sidebar__card-body .badge {
            display: inline-block;
            font-size: 11px;
            font-weight: 700;
            background: rgba(201, 163, 92, 0.15);
            color: var(--accent-dark);
            border-radius: 50px;
            padding: 3px 12px;
            margin-top: 8px;
        }

        /* Services section */
        .services-grid {
            display: grid;
            grid-template-columns: 1.2fr 1fr;
            gap: 24px;
        }
        .service-feature {
            background: var(--bg-card);
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border);
            display: flex;
            flex-direction: column;
            transition: var(--transition);
        }
        .service-feature:hover {
            box-shadow: var(--shadow-lg);
            transform: translateY(-3px);
        }
        .service-feature__img {
            height: 220px;
            overflow: hidden;
            position: relative;
        }
        .service-feature__img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.5s ease;
        }
        .service-feature:hover .service-feature__img img {
            transform: scale(1.04);
        }
        .service-feature__body {
            padding: 24px 26px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }
        .service-feature__body h3 {
            font-size: 20px;
            font-weight: 800;
            margin-bottom: 10px;
        }
        .service-feature__body p {
            font-size: 14px;
            color: var(--text-2);
            line-height: 1.8;
            margin-bottom: 16px;
            flex: 1;
        }
        .service-feature__meta {
            display: flex;
            gap: 12px;
            flex-wrap: wrap;
        }
        .service-tag {
            font-size: 12px;
            font-weight: 600;
            padding: 5px 14px;
            border-radius: 50px;
            background: rgba(13, 27, 42, 0.06);
            color: var(--text-2);
        }
        .service-tag--accent {
            background: rgba(201, 163, 92, 0.18);
            color: var(--accent-dark);
        }
        .group-buy {
            background: var(--gradient-brand);
            border-radius: var(--radius-lg);
            padding: 26px;
            color: #fff;
            display: flex;
            flex-direction: column;
            gap: 18px;
        }
        .group-buy__head h3 {
            font-size: 20px;
            font-weight: 800;
            margin-bottom: 4px;
        }
        .group-buy__head p {
            font-size: 13px;
            color: var(--text-on-dark-2);
        }
        .group-buy__item {
            background: rgba(255, 255, 255, 0.06);
            border-radius: var(--radius-sm);
            padding: 14px 16px;
            border: 1px solid rgba(255, 255, 255, 0.1);
        }
        .group-buy__item-top {
            display: flex;
            justify-content: space-between;
            font-size: 13px;
            margin-bottom: 8px;
            color: var(--text-on-dark);
        }
        .group-buy__item-top strong {
            font-weight: 700;
            color: var(--accent-light);
        }
        .progress-bar {
            height: 6px;
            background: rgba(255, 255, 255, 0.12);
            border-radius: 3px;
            overflow: hidden;
            margin-bottom: 6px;
        }
        .progress-bar__fill {
            height: 100%;
            border-radius: 3px;
            background: var(--gradient-accent);
            transition: width 0.6s ease;
        }
        .group-buy__item-bottom {
            font-size: 12px;
            color: var(--text-on-dark-2);
        }
        .group-buy__cta {
            display: flex;
            gap: 10px;
            margin-top: auto;
        }

        /* App section */
        .app-section {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 40px;
            align-items: center;
        }
        .app-section__text h2 {
            font-size: 32px;
            font-weight: 800;
            color: #fff;
            margin-bottom: 16px;
        }
        .app-section__text p {
            font-size: 15px;
            color: var(--text-on-dark-2);
            line-height: 1.85;
            margin-bottom: 24px;
        }
        .app-section__links {
            display: flex;
            gap: 14px;
            flex-wrap: wrap;
        }
        .app-badge {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            background: rgba(255, 255, 255, 0.08);
            border: 1px solid rgba(255, 255, 255, 0.2);
            border-radius: var(--radius-sm);
            padding: 10px 18px;
            font-size: 14px;
            font-weight: 600;
            color: #fff;
            transition: var(--transition);
        }
        .app-badge:hover {
            background: rgba(255, 255, 255, 0.16);
            border-color: rgba(255, 255, 255, 0.4);
            transform: translateY(-2px);
        }
        .app-section__visual {
            background: rgba(255, 255, 255, 0.05);
            border-radius: var(--radius-lg);
            padding: 28px;
            border: 1px solid rgba(255, 255, 255, 0.1);
            display: flex;
            align-items: center;
            justify-content: center;
            min-height: 320px;
        }
        .app-section__visual img {
            border-radius: var(--radius-md);
            max-width: 100%;
            box-shadow: var(--shadow-lg);
        }

        /* FAQ */
        .faq-list {
            display: flex;
            flex-direction: column;
            gap: 12px;
            max-width: 800px;
            margin: 0 auto;
        }
        .faq-item {
            background: var(--bg-card);
            border-radius: var(--radius-md);
            border: 1px solid var(--border);
            box-shadow: var(--shadow-sm);
            overflow: hidden;
            transition: var(--transition);
        }
        .faq-item:hover {
            border-color: rgba(201, 163, 92, 0.5);
            box-shadow: var(--shadow-md);
        }
        .faq-item__q {
            padding: 18px 22px;
            font-size: 16px;
            font-weight: 700;
            cursor: pointer;
            display: flex;
            justify-content: space-between;
            align-items: center;
            gap: 12px;
            color: var(--text);
            transition: var(--transition);
            user-select: none;
        }
        .faq-item__q:hover {
            color: var(--accent-dark);
        }
        .faq-item__q .faq-icon {
            font-size: 22px;
            font-weight: 400;
            color: var(--text-3);
            transition: transform 0.3s ease;
            flex-shrink: 0;
        }
        .faq-item.open .faq-icon {
            transform: rotate(45deg);
            color: var(--accent-dark);
        }
        .faq-item__a {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.4s ease, padding 0.3s ease;
            padding: 0 22px;
            font-size: 14px;
            color: var(--text-2);
            line-height: 1.8;
        }
        .faq-item.open .faq-item__a {
            max-height: 200px;
            padding: 0 22px 18px;
        }

        /* About section */
        .about-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 36px;
            align-items: center;
        }
        .about-grid__img {
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-lg);
        }
        .about-grid__img img {
            width: 100%;
            height: 360px;
            object-fit: cover;
        }
        .about-grid__text h2 {
            font-size: 30px;
            font-weight: 800;
            margin-bottom: 16px;
        }
        .about-grid__text p {
            font-size: 15px;
            color: var(--text-2);
            line-height: 1.9;
            margin-bottom: 14px;
        }
        .about-stats {
            display: flex;
            gap: 22px;
            flex-wrap: wrap;
            margin-top: 18px;
        }
        .about-stat {
            text-align: center;
            background: var(--bg-card);
            border-radius: var(--radius-md);
            padding: 16px 22px;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border);
            min-width: 100px;
        }
        .about-stat__num {
            font-size: 24px;
            font-weight: 800;
            color: var(--accent-dark);
        }
        .about-stat__label {
            font-size: 12px;
            color: var(--text-3);
            margin-top: 2px;
        }

        /* Contributor strip */
        .contributor-strip {
            display: flex;
            gap: 16px;
            overflow-x: auto;
            padding: 10px 0 20px;
            scrollbar-width: thin;
            scrollbar-color: rgba(201, 163, 92, 0.4) transparent;
        }
        .contributor-strip::-webkit-scrollbar {
            height: 5px;
        }
        .contributor-strip::-webkit-scrollbar-thumb {
            background: rgba(201, 163, 92, 0.4);
            border-radius: 3px;
        }
        .contributor-card {
            flex: 0 0 200px;
            background: var(--bg-card);
            border-radius: var(--radius-md);
            padding: 18px;
            border: 1px solid var(--border);
            box-shadow: var(--shadow-sm);
            transition: var(--transition);
        }
        .contributor-card:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-2px);
        }
        .contributor-card__avatar {
            width: 48px;
            height: 48px;
            border-radius: 50%;
            background: var(--gradient-accent);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 20px;
            font-weight: 700;
            color: #0d1b2a;
            margin-bottom: 10px;
        }
        .contributor-card h4 {
            font-size: 14px;
            font-weight: 700;
            margin-bottom: 4px;
        }
        .contributor-card p {
            font-size: 12px;
            color: var(--text-3);
            line-height: 1.5;
        }

        /* Footer */
        .footer {
            background: #091522;
            color: var(--text-on-dark);
            padding: 48px 0 0;
            margin-top: 0;
        }
        .footer__grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 32px;
            padding-bottom: 36px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.08);
        }
        .footer__brand h3 {
            font-size: 20px;
            font-weight: 800;
            margin-bottom: 12px;
            color: #fff;
        }
        .footer__brand p {
            font-size: 13px;
            color: var(--text-on-dark-2);
            line-height: 1.7;
            max-width: 300px;
        }
        .footer__col h4 {
            font-size: 14px;
            font-weight: 700;
            color: #fff;
            margin-bottom: 14px;
            letter-spacing: 0.5px;
        }
        .footer__col a {
            display: block;
            font-size: 13px;
            color: var(--text-on-dark-2);
            padding: 4px 0;
            transition: var(--transition);
        }
        .footer__col a:hover {
            color: var(--accent-light);
            transform: translateX(3px);
        }
        .footer__bottom {
            padding: 20px 0;
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 10px;
            font-size: 12px;
            color: rgba(237, 234, 226, 0.4);
        }
        .footer__bottom a {
            color: rgba(237, 234, 226, 0.5);
        }
        .footer__bottom a:hover {
            color: var(--accent-light);
        }

        /* Floating CTA bar */
        .floating-cta {
            position: fixed;
            bottom: 20px;
            left: calc(var(--sidebar-w) + 20px);
            right: 20px;
            z-index: 90;
            background: var(--gradient-brand);
            border-radius: var(--radius-md);
            padding: 14px 22px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            box-shadow: var(--shadow-lg);
            border: 1px solid rgba(201, 163, 92, 0.3);
            transition: var(--transition);
        }
        .floating-cta__text {
            color: #fff;
            font-size: 14px;
            font-weight: 600;
            letter-spacing: 0.3px;
        }
        .floating-cta__text strong {
            color: var(--accent-light);
        }
        .floating-cta__actions {
            display: flex;
            gap: 10px;
        }

        /* Media Queries */
        @media (max-width: 1024px) {
            :root {
                --sidebar-w: 220px;
            }
            .hero h1 {
                font-size: 34px;
            }
            .hero__visual {
                right: 20px;
            }
            .countdown-ring {
                width: 120px;
                height: 120px;
            }
            .countdown-ring__days {
                font-size: 32px;
            }
            .info-grid {
                grid-template-columns: 1fr 280px;
            }
            .services-grid {
                grid-template-columns: 1fr;
            }
            .app-section {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .about-grid {
                grid-template-columns: 1fr;
            }
            .footer__grid {
                grid-template-columns: 1fr 1fr;
            }
            .floating-cta {
                left: calc(var(--sidebar-w) + 16px);
                right: 16px;
            }
        }
        @media (max-width: 768px) {
            :root {
                --sidebar-w: 0px;
            }
            .sidebar {
                transform: translateX(-100%);
            }
            .sidebar.show {
                transform: translateX(0);
            }
            .mobile-bar {
                display: flex;
            }
            .main-content {
                margin-left: 0;
                padding-top: 56px;
            }
            .container {
                padding: 0 18px;
            }
            .hero {
                min-height: auto;
                padding: 70px 0 50px;
                border-radius: 0;
            }
            .hero h1 {
                font-size: 28px;
            }
            .hero__desc {
                font-size: 15px;
            }
            .hero__visual {
                position: relative;
                right: auto;
                top: auto;
                transform: none;
                flex-direction: row;
                flex-wrap: wrap;
                justify-content: center;
                margin-top: 30px;
            }
            .info-grid {
                grid-template-columns: 1fr;
            }
            .info-sidebar {
                flex-direction: row;
                flex-wrap: wrap;
            }
            .info-sidebar__card {
                flex: 1;
                min-width: 220px;
            }
            .section {
                padding: 48px 0;
            }
            .section__title {
                font-size: 26px;
            }
            .services-grid {
                grid-template-columns: 1fr;
            }
            .footer__grid {
                grid-template-columns: 1fr;
            }
            .footer__bottom {
                flex-direction: column;
                text-align: center;
            }
            .floating-cta {
                left: 12px;
                right: 12px;
                bottom: 12px;
                padding: 12px 16px;
                flex-direction: column;
                text-align: center;
            }
            .floating-cta__actions {
                width: 100%;
                justify-content: center;
            }
            .about-stats {
                justify-content: center;
            }
        }
        @media (max-width: 520px) {
            .hero h1 {
                font-size: 24px;
            }
            .hero__actions {
                flex-direction: column;
            }
            .btn {
                justify-content: center;
                width: 100%;
            }
            .hero__stats {
                gap: 16px;
            }
            .hero__stat-num {
                font-size: 22px;
            }
            .group-buy__cta {
                flex-direction: column;
            }
            .section__title {
                font-size: 22px;
            }
            .faq-item__q {
                font-size: 14px;
                padding: 14px 16px;
            }
            .faq-item__a {
                padding: 0 16px;
                font-size: 13px;
            }
            .faq-item.open .faq-item__a {
                padding: 0 16px 14px;
            }
            .info-sidebar__card {
                min-width: 100%;
            }
        }