/* roulang page: index */
:root {
            --primary: #2d6a4f;
            --primary-dark: #1b4332;
            --primary-light: #40916c;
            --primary-soft: #e8f3ed;
            --accent: #c9a227;
            --accent-dark: #a8841a;
            --accent-soft: #fdf6e3;
            --bg: #fafaf7;
            --bg-card: #ffffff;
            --bg-dark: #1a2e24;
            --text: #2c3a2f;
            --text-light: #5a6a5e;
            --muted: #7a8a7e;
            --border: #e5e8e4;
            --border-light: #eef1ed;
            --radius-sm: 8px;
            --radius: 14px;
            --radius-lg: 20px;
            --radius-xl: 28px;
            --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.05);
            --shadow: 0 6px 28px rgba(0, 0, 0, 0.08);
            --shadow-lg: 0 16px 48px rgba(0, 0, 0, 0.1);
            --shadow-glow: 0 0 0 4px rgba(45, 106, 79, 0.12);
            --font-sans: "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
            --transition: 0.25s cubic-bezier(0.25, 0.46, 0.45, 0.94);
            --container-max: 1200px;
            --header-height: 72px;
            --nav-height: 68px;
        }

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

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

        body {
            font-family: var(--font-sans);
            background-color: var(--bg);
            color: var(--text);
            line-height: 1.7;
            margin: 0;
            padding: 0;
            overflow-x: hidden;
            font-size: 16px;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

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

        a:hover {
            color: var(--primary-dark);
            text-decoration: none;
        }

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

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

        ul,
        ol {
            list-style: none;
            margin: 0;
            padding: 0;
        }

        h1,
        h2,
        h3,
        h4,
        h5,
        h6 {
            font-weight: 700;
            color: var(--text);
            line-height: 1.35;
            margin-top: 0;
        }

        h1 {
            font-size: clamp(1.85rem, 4.5vw, 3rem);
            letter-spacing: -0.02em;
        }

        h2 {
            font-size: clamp(1.5rem, 3.2vw, 2.2rem);
            letter-spacing: -0.01em;
            margin-bottom: 0.75rem;
        }

        h3 {
            font-size: clamp(1.1rem, 2.2vw, 1.4rem);
        }

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

        @media (max-width: 576px) {
            .container-custom {
                padding-left: 16px;
                padding-right: 16px;
            }
        }

        /* ========== Header / Navigation ========== */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 1050;
            background-color: rgba(255, 255, 255, 0.96);
            backdrop-filter: blur(18px);
            -webkit-backdrop-filter: blur(18px);
            border-bottom: 1px solid var(--border-light);
            box-shadow: 0 2px 16px rgba(0, 0, 0, 0.04);
            height: var(--header-height);
            display: flex;
            align-items: center;
            transition: box-shadow var(--transition), height var(--transition);
        }

        .site-header.scrolled {
            box-shadow: 0 6px 30px rgba(0, 0, 0, 0.08);
            height: 64px;
        }

        .nav-wrapper {
            display: flex;
            align-items: center;
            justify-content: space-between;
            width: 100%;
            gap: 20px;
        }

        .nav-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-weight: 800;
            font-size: 1.15rem;
            color: var(--primary-dark);
            white-space: nowrap;
            letter-spacing: 0.01em;
            transition: opacity var(--transition);
        }

        .nav-logo:hover {
            color: var(--primary-dark);
            opacity: 0.85;
        }

        .nav-logo-icon {
            width: 38px;
            height: 38px;
            background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
            border-radius: 10px;
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-size: 1rem;
            flex-shrink: 0;
            box-shadow: 0 4px 12px rgba(45, 106, 79, 0.3);
        }

        .nav-menu {
            display: flex;
            align-items: center;
            gap: 4px;
            flex: 1;
            justify-content: center;
        }

        .nav-menu a.nav-link {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 8px 16px;
            font-size: 0.92rem;
            font-weight: 600;
            color: var(--text-light);
            border-radius: 999px;
            transition: all var(--transition);
            white-space: nowrap;
            position: relative;
        }

        .nav-menu a.nav-link:hover {
            color: var(--primary);
            background-color: var(--primary-soft);
        }

        .nav-menu a.nav-link.active {
            color: var(--primary-dark);
            background-color: var(--primary-soft);
            font-weight: 700;
        }

        .nav-menu a.nav-link.active::after {
            content: '';
            position: absolute;
            bottom: 2px;
            left: 50%;
            transform: translateX(-50%);
            width: 18px;
            height: 3px;
            background-color: var(--primary);
            border-radius: 99px;
        }

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

        .btn {
            --btn-bg: var(--primary);
            --btn-border: var(--primary);
            --btn-color: #fff;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            padding: 10px 22px;
            font-size: 0.92rem;
            font-weight: 700;
            border-radius: var(--radius-sm);
            border: 2px solid var(--btn-border);
            background-color: var(--btn-bg);
            color: var(--btn-color);
            cursor: pointer;
            transition: all var(--transition);
            white-space: nowrap;
            line-height: 1.4;
            text-align: center;
            box-shadow: 0 2px 8px rgba(0, 0, 0, 0.06);
        }

        .btn:hover {
            background-color: var(--primary-dark);
            border-color: var(--primary-dark);
            color: #fff;
            box-shadow: 0 6px 20px rgba(45, 106, 79, 0.3);
            transform: translateY(-1px);
        }

        .btn:active {
            transform: translateY(0);
            box-shadow: 0 2px 6px rgba(0, 0, 0, 0.12);
        }

        .btn-outline-primary {
            --btn-bg: transparent;
            --btn-border: var(--primary);
            --btn-color: var(--primary);
        }

        .btn-outline-primary:hover {
            --btn-bg: var(--primary);
            --btn-border: var(--primary);
            --btn-color: #fff;
        }

        .btn-accent {
            --btn-bg: var(--accent);
            --btn-border: var(--accent);
            --btn-color: #fff;
        }

        .btn-accent:hover {
            --btn-bg: var(--accent-dark);
            --btn-border: var(--accent-dark);
            --btn-color: #fff;
            box-shadow: 0 6px 20px rgba(201, 162, 39, 0.35);
        }

        .btn-lg {
            padding: 14px 32px;
            font-size: 1.05rem;
            border-radius: var(--radius);
        }

        .btn-sm {
            padding: 7px 14px;
            font-size: 0.82rem;
            border-radius: 6px;
        }

        .btn-block {
            display: flex;
            width: 100%;
        }

        .nav-hamburger {
            display: none;
            width: 42px;
            height: 42px;
            background: var(--primary-soft);
            border: 1px solid var(--border);
            border-radius: 10px;
            align-items: center;
            justify-content: center;
            cursor: pointer;
            font-size: 1.2rem;
            color: var(--primary-dark);
            transition: all var(--transition);
            flex-shrink: 0;
        }

        .nav-hamburger:hover {
            background: var(--primary);
            color: #fff;
        }

        @media (max-width: 992px) {
            .nav-menu {
                display: none;
            }

            .nav-hamburger {
                display: flex;
            }

            .nav-actions .btn-outline-primary {
                display: none;
            }
        }

        @media (max-width: 576px) {
            .site-header {
                height: 62px;
            }

            .nav-logo {
                font-size: 1rem;
            }

            .nav-logo-icon {
                width: 32px;
                height: 32px;
                font-size: 0.85rem;
                border-radius: 8px;
            }

            .nav-actions .btn {
                padding: 8px 14px;
                font-size: 0.82rem;
            }
        }

        .mobile-menu {
            display: none;
            position: fixed;
            top: var(--header-height);
            left: 0;
            right: 0;
            background: #fff;
            border-bottom: 1px solid var(--border);
            box-shadow: var(--shadow-lg);
            padding: 16px 24px;
            z-index: 1040;
            flex-direction: column;
            gap: 4px;
        }

        .mobile-menu.open {
            display: flex;
        }

        .mobile-menu a {
            padding: 12px 16px;
            font-size: 1rem;
            font-weight: 600;
            color: var(--text);
            border-radius: 10px;
            display: flex;
            align-items: center;
            gap: 10px;
            transition: all var(--transition);
        }

        .mobile-menu a:hover {
            background: var(--primary-soft);
            color: var(--primary-dark);
        }

        /* ========== Hero ========== */
        .hero {
            position: relative;
            overflow: hidden;
            background: var(--bg-dark);
            min-height: 680px;
            display: flex;
            align-items: center;
            padding: 80px 0 90px;
        }

        .hero-bg {
            position: absolute;
            inset: 0;
            background-image: url('/assets/images/backpic/back-1.jpg');
            background-size: cover;
            background-position: center;
            opacity: 0.3;
            z-index: 1;
        }

        .hero-overlay {
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(26, 46, 36, 0.92) 0%, rgba(27, 67, 50, 0.78) 50%, rgba(45, 106, 79, 0.55) 100%);
            z-index: 2;
        }

        .hero-content {
            position: relative;
            z-index: 3;
            color: #fff;
        }

        .hero-grid {
            display: grid;
            grid-template-columns: 1.2fr 0.8fr;
            gap: 48px;
            align-items: center;
        }

        @media (max-width: 992px) {
            .hero {
                min-height: auto;
                padding: 60px 0 70px;
            }

            .hero-grid {
                grid-template-columns: 1fr;
                gap: 36px;
            }
        }

        .hero-badge-row {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
            margin-bottom: 18px;
        }

        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 6px 14px;
            background: rgba(255, 255, 255, 0.14);
            border: 1px solid rgba(255, 255, 255, 0.25);
            border-radius: 999px;
            font-size: 0.8rem;
            font-weight: 600;
            color: #f0f5f2;
            backdrop-filter: blur(10px);
            -webkit-backdrop-filter: blur(10px);
            transition: all var(--transition);
        }

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

        .hero h1 {
            color: #fff;
            margin-bottom: 18px;
            font-size: clamp(1.9rem, 4.8vw, 3.1rem);
            line-height: 1.25;
        }

        .hero-lead {
            color: rgba(255, 255, 255, 0.88);
            font-size: 1.05rem;
            line-height: 1.85;
            max-width: 580px;
            margin-bottom: 28px;
        }

        .hero-cta-row {
            display: flex;
            flex-wrap: wrap;
            gap: 14px;
            margin-bottom: 24px;
        }

        .hero-cta-row .btn {
            font-size: 1rem;
            padding: 13px 28px;
        }

        .hero-stats {
            display: flex;
            flex-wrap: wrap;
            gap: 28px;
            padding-top: 20px;
            border-top: 1px solid rgba(255, 255, 255, 0.2);
        }

        .hero-stat {
            display: flex;
            flex-direction: column;
        }

        .hero-stat-number {
            font-size: 1.6rem;
            font-weight: 800;
            color: #fff;
            letter-spacing: -0.02em;
        }

        .hero-stat-label {
            font-size: 0.8rem;
            color: rgba(255, 255, 255, 0.7);
            font-weight: 500;
        }

        .hero-form-card {
            background: #fff;
            border-radius: var(--radius-lg);
            padding: 28px 26px;
            box-shadow: var(--shadow-lg);
            border: 1px solid rgba(255, 255, 255, 0.5);
        }

        .hero-form-card h3 {
            font-size: 1.2rem;
            margin-bottom: 6px;
            color: var(--primary-dark);
        }

        .hero-form-card .form-sub {
            font-size: 0.85rem;
            color: var(--muted);
            margin-bottom: 20px;
        }

        .hero-form-card .form-label {
            font-size: 0.82rem;
            font-weight: 700;
            color: var(--text);
            margin-bottom: 6px;
            display: block;
        }

        .hero-form-card .form-control,
        .hero-form-card .form-select {
            border: 1.5px solid var(--border);
            border-radius: var(--radius-sm);
            padding: 10px 14px;
            font-size: 0.9rem;
            transition: all var(--transition);
            background-color: var(--bg);
        }

        .hero-form-card .form-control:focus,
        .hero-form-card .form-select:focus {
            border-color: var(--primary);
            box-shadow: var(--shadow-glow);
            background-color: #fff;
        }

        .hero-form-card .form-check-label {
            font-size: 0.8rem;
            color: var(--muted);
        }

        .hero-form-card .form-check-input:checked {
            background-color: var(--primary);
            border-color: var(--primary);
        }

        .hero-form-card .btn-submit {
            width: 100%;
            padding: 13px 20px;
            font-size: 1rem;
            font-weight: 700;
            background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
            border: none;
            border-radius: var(--radius-sm);
            color: #fff;
            transition: all var(--transition);
            box-shadow: 0 4px 16px rgba(45, 106, 79, 0.35);
        }

        .hero-form-card .btn-submit:hover {
            box-shadow: 0 8px 28px rgba(45, 106, 79, 0.5);
            transform: translateY(-2px);
        }

        .hero-form-card .btn-submit:active {
            transform: translateY(0);
        }

        /* ========== Sections General ========== */
        .section {
            padding: 72px 0;
        }

        .section-alt {
            background-color: #f3f6f3;
        }

        .section-dark {
            background: var(--bg-dark);
            color: #fff;
        }

        .section-dark h2 {
            color: #fff;
        }

        .section-dark .section-desc {
            color: rgba(255, 255, 255, 0.7);
        }

        .section-head {
            margin-bottom: 40px;
        }

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

        .section-desc {
            color: var(--muted);
            font-size: 0.95rem;
            max-width: 680px;
            line-height: 1.8;
        }

        .section-tag {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 5px 14px;
            background: var(--primary-soft);
            color: var(--primary-dark);
            border-radius: 999px;
            font-size: 0.78rem;
            font-weight: 700;
            letter-spacing: 0.03em;
            margin-bottom: 12px;
            text-transform: uppercase;
        }

        /* ========== Coupon Grid ========== */
        .coupon-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
        }

        @media (max-width: 992px) {
            .coupon-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }

        @media (max-width: 576px) {
            .coupon-grid {
                grid-template-columns: 1fr;
                gap: 14px;
            }
        }

        .coupon-card {
            background: #fff;
            border-radius: var(--radius);
            padding: 24px 22px;
            box-shadow: var(--shadow-sm);
            border: 1.5px solid var(--border-light);
            transition: all var(--transition);
            position: relative;
            overflow: hidden;
            display: flex;
            flex-direction: column;
            gap: 12px;
        }

        .coupon-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 4px;
            background: linear-gradient(90deg, var(--primary), var(--primary-light));
            opacity: 0.75;
        }

        .coupon-card:hover {
            box-shadow: var(--shadow-lg);
            transform: translateY(-4px);
            border-color: rgba(45, 106, 79, 0.25);
        }

        .coupon-card.featured {
            border-color: rgba(201, 162, 39, 0.5);
            box-shadow: 0 8px 32px rgba(201, 162, 39, 0.18);
        }

        .coupon-card.featured::before {
            background: linear-gradient(90deg, var(--accent), #e5c558);
        }

        .coupon-top {
            display: flex;
            align-items: center;
            justify-content: space-between;
        }

        .coupon-amount {
            font-size: 2rem;
            font-weight: 800;
            color: var(--primary-dark);
            letter-spacing: -0.03em;
            line-height: 1.1;
        }

        .coupon-amount .currency {
            font-size: 1rem;
            font-weight: 700;
            vertical-align: top;
            margin-right: 2px;
        }

        .coupon-card.featured .coupon-amount {
            color: var(--accent-dark);
        }

        .coupon-tag {
            display: inline-flex;
            align-items: center;
            padding: 4px 12px;
            border-radius: 999px;
            font-size: 0.75rem;
            font-weight: 700;
            background: var(--primary-soft);
            color: var(--primary-dark);
        }

        .coupon-card.featured .coupon-tag {
            background: var(--accent-soft);
            color: var(--accent-dark);
        }

        .coupon-condition {
            font-size: 0.85rem;
            color: var(--text-light);
            font-weight: 600;
        }

        .coupon-expire {
            font-size: 0.78rem;
            color: var(--muted);
            display: flex;
            align-items: center;
            gap: 5px;
        }

        .coupon-btn {
            width: 100%;
            padding: 10px 16px;
            border: 1.5px solid var(--primary);
            background: transparent;
            color: var(--primary);
            border-radius: var(--radius-sm);
            font-weight: 700;
            font-size: 0.88rem;
            cursor: pointer;
            transition: all var(--transition);
        }

        .coupon-btn:hover {
            background: var(--primary);
            color: #fff;
            box-shadow: 0 4px 14px rgba(45, 106, 79, 0.3);
        }

        .coupon-card.featured .coupon-btn {
            border-color: var(--accent);
            color: var(--accent-dark);
        }

        .coupon-card.featured .coupon-btn:hover {
            background: var(--accent);
            color: #fff;
            box-shadow: 0 4px 14px rgba(201, 162, 39, 0.35);
        }

        .coupon-btn.received {
            background: var(--border-light);
            border-color: var(--border);
            color: var(--muted);
            cursor: default;
            pointer-events: none;
        }

        /* ========== Rules ========== */
        .rules-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 20px;
        }

        @media (max-width: 992px) {
            .rules-grid {
                grid-template-columns: 1fr 1fr;
            }
        }

        @media (max-width: 576px) {
            .rules-grid {
                grid-template-columns: 1fr;
            }
        }

        .rule-card {
            background: #fff;
            border-radius: var(--radius);
            padding: 26px 24px;
            border: 1px solid var(--border-light);
            box-shadow: var(--shadow-sm);
            display: flex;
            gap: 16px;
            align-items: flex-start;
            transition: all var(--transition);
        }

        .rule-card:hover {
            box-shadow: var(--shadow);
            transform: translateY(-2px);
        }

        .rule-icon {
            width: 44px;
            height: 44px;
            border-radius: 12px;
            background: var(--primary-soft);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.2rem;
            color: var(--primary);
            flex-shrink: 0;
        }

        .rule-card h4 {
            font-size: 1rem;
            margin-bottom: 6px;
            color: var(--text);
        }

        .rule-card p {
            font-size: 0.88rem;
            color: var(--muted);
            margin: 0;
            line-height: 1.7;
        }

        /* ========== News Section ========== */
        .news-layout {
            display: grid;
            grid-template-columns: 1.4fr 0.6fr;
            gap: 32px;
        }

        @media (max-width: 992px) {
            .news-layout {
                grid-template-columns: 1fr;
            }
        }

        .news-list {
            display: flex;
            flex-direction: column;
            gap: 0;
        }

        .news-item {
            display: flex;
            gap: 16px;
            padding: 18px 8px;
            border-bottom: 1px solid var(--border-light);
            transition: all var(--transition);
            border-radius: 8px;
        }

        .news-item:hover {
            background: #fff;
            padding-left: 14px;
            padding-right: 14px;
            box-shadow: var(--shadow-sm);
        }

        .news-date {
            min-width: 56px;
            display: flex;
            flex-direction: column;
            align-items: center;
            justify-content: flex-start;
            padding-top: 4px;
        }

        .news-date .day {
            font-size: 1.4rem;
            font-weight: 800;
            color: var(--primary);
            line-height: 1.1;
        }

        .news-date .month-year {
            font-size: 0.72rem;
            color: var(--muted);
            font-weight: 600;
        }

        .news-content h4 {
            font-size: 0.98rem;
            margin-bottom: 4px;
            line-height: 1.5;
        }

        .news-content h4 a {
            color: var(--text);
            transition: color var(--transition);
        }

        .news-content h4 a:hover {
            color: var(--primary);
        }

        .news-content p {
            font-size: 0.82rem;
            color: var(--muted);
            margin-bottom: 4px;
            line-height: 1.6;
        }

        .news-meta {
            font-size: 0.75rem;
            color: var(--muted);
            display: flex;
            gap: 12px;
            align-items: center;
        }

        .news-meta i {
            font-size: 0.7rem;
            color: var(--primary-light);
        }

        .news-sidebar {
            display: flex;
            flex-direction: column;
            gap: 16px;
        }

        .news-side-card {
            background: #fff;
            border-radius: var(--radius);
            overflow: hidden;
            border: 1px solid var(--border-light);
            box-shadow: var(--shadow-sm);
            transition: all var(--transition);
        }

        .news-side-card:hover {
            box-shadow: var(--shadow);
            transform: translateY(-2px);
        }

        .news-side-card img {
            width: 100%;
            height: 150px;
            object-fit: cover;
        }

        .news-side-card .side-body {
            padding: 16px 18px;
        }

        .news-side-card .side-body h5 {
            font-size: 0.92rem;
            margin-bottom: 6px;
            line-height: 1.5;
        }

        .news-side-card .side-body p {
            font-size: 0.8rem;
            color: var(--muted);
            margin: 0;
            line-height: 1.6;
        }

        .side-tag {
            display: inline-block;
            padding: 3px 10px;
            border-radius: 999px;
            background: var(--accent-soft);
            color: var(--accent-dark);
            font-size: 0.72rem;
            font-weight: 700;
            margin-bottom: 6px;
        }

        /* ========== CTA Section ========== */
        .cta-section {
            padding: 68px 0;
            background: linear-gradient(135deg, var(--primary-dark) 0%, var(--primary) 60%, var(--primary-light) 100%);
            border-radius: 0;
            position: relative;
            overflow: hidden;
        }

        .cta-section::before {
            content: '';
            position: absolute;
            top: -50%;
            right: -10%;
            width: 400px;
            height: 400px;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.06);
            pointer-events: none;
        }

        .cta-section::after {
            content: '';
            position: absolute;
            bottom: -40%;
            left: -5%;
            width: 300px;
            height: 300px;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.04);
            pointer-events: none;
        }

        .cta-content {
            position: relative;
            z-index: 2;
            text-align: center;
            max-width: 720px;
            margin: 0 auto;
        }

        .cta-content h2 {
            color: #fff;
            margin-bottom: 14px;
            font-size: clamp(1.6rem, 3.5vw, 2.3rem);
        }

        .cta-content p {
            color: rgba(255, 255, 255, 0.85);
            font-size: 1rem;
            margin-bottom: 28px;
            line-height: 1.8;
        }

        .cta-content .btn {
            font-size: 1.05rem;
            padding: 15px 38px;
            background: #fff;
            border-color: #fff;
            color: var(--primary-dark);
            box-shadow: 0 8px 28px rgba(0, 0, 0, 0.2);
        }

        .cta-content .btn:hover {
            background: var(--accent);
            border-color: var(--accent);
            color: #fff;
            box-shadow: 0 12px 36px rgba(0, 0, 0, 0.3);
            transform: translateY(-2px);
        }

        /* ========== Footer ========== */
        .site-footer {
            background: #14251c;
            color: rgba(255, 255, 255, 0.75);
            padding: 52px 0 24px;
            border-top: 1px solid rgba(255, 255, 255, 0.06);
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 1.5fr 1fr 1fr 1fr;
            gap: 36px;
            margin-bottom: 36px;
        }

        @media (max-width: 992px) {
            .footer-grid {
                grid-template-columns: 1fr 1fr;
            }
        }

        @media (max-width: 576px) {
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }
        }

        .footer-brand .nav-logo {
            color: #fff;
            font-size: 1.25rem;
            margin-bottom: 12px;
        }

        .footer-brand .nav-logo:hover {
            color: #fff;
        }

        .footer-brand p {
            font-size: 0.85rem;
            color: rgba(255, 255, 255, 0.6);
            line-height: 1.8;
            max-width: 320px;
        }

        .footer-col h5 {
            color: #fff;
            font-size: 0.95rem;
            margin-bottom: 16px;
            font-weight: 700;
        }

        .footer-col ul li {
            margin-bottom: 8px;
        }

        .footer-col ul li a {
            color: rgba(255, 255, 255, 0.65);
            font-size: 0.85rem;
            transition: all var(--transition);
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }

        .footer-col ul li a:hover {
            color: var(--accent);
            transform: translateX(3px);
        }

        .footer-col ul li a i {
            font-size: 0.6rem;
            color: var(--accent);
        }

        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            padding-top: 20px;
            display: flex;
            flex-wrap: wrap;
            gap: 12px;
            align-items: center;
            justify-content: space-between;
        }

        .footer-bottom p {
            font-size: 0.8rem;
            color: rgba(255, 255, 255, 0.5);
            margin: 0;
        }

        .footer-bottom .footer-links {
            display: flex;
            gap: 18px;
        }

        .footer-bottom .footer-links a {
            font-size: 0.8rem;
            color: rgba(255, 255, 255, 0.5);
            transition: color var(--transition);
        }

        .footer-bottom .footer-links a:hover {
            color: #fff;
        }

        /* ========== Floating CTA ========== */
        .floating-cta {
            position: fixed;
            bottom: 0;
            left: 0;
            right: 0;
            z-index: 1030;
            background: rgba(20, 37, 28, 0.96);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            padding: 12px 20px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            box-shadow: 0 -4px 24px rgba(0, 0, 0, 0.15);
            border-top: 1px solid rgba(255, 255, 255, 0.1);
        }

        .floating-cta .fc-text {
            display: flex;
            align-items: center;
            gap: 12px;
            flex: 1;
            min-width: 0;
        }

        .floating-cta .fc-text .fc-icon {
            width: 40px;
            height: 40px;
            background: var(--accent);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-size: 1.1rem;
            flex-shrink: 0;
            box-shadow: 0 4px 14px rgba(201, 162, 39, 0.4);
        }

        .floating-cta .fc-text span {
            font-weight: 700;
            color: #fff;
            font-size: 0.95rem;
            white-space: nowrap;
            overflow: hidden;
            text-overflow: ellipsis;
        }

        .floating-cta .fc-text small {
            display: block;
            color: rgba(255, 255, 255, 0.6);
            font-size: 0.75rem;
            font-weight: 500;
        }

        .floating-cta .btn {
            flex-shrink: 0;
            font-size: 0.9rem;
            padding: 10px 22px;
            background: var(--accent);
            border-color: var(--accent);
            color: #fff;
            box-shadow: 0 4px 16px rgba(201, 162, 39, 0.4);
        }

        .floating-cta .btn:hover {
            background: #fff;
            border-color: #fff;
            color: var(--primary-dark);
            box-shadow: 0 6px 24px rgba(255, 255, 255, 0.2);
        }

        @media (max-width: 576px) {
            .floating-cta {
                padding: 10px 14px;
                gap: 10px;
            }

            .floating-cta .fc-text .fc-icon {
                width: 34px;
                height: 34px;
                font-size: 0.9rem;
            }

            .floating-cta .fc-text span {
                font-size: 0.82rem;
            }

            .floating-cta .btn {
                padding: 8px 16px;
                font-size: 0.8rem;
            }
        }

        /* ========== Toast / Alert ========== */
        .custom-toast {
            position: fixed;
            top: 90px;
            right: 20px;
            z-index: 1060;
            background: #fff;
            border-radius: var(--radius);
            box-shadow: var(--shadow-lg);
            padding: 16px 20px;
            display: flex;
            align-items: center;
            gap: 12px;
            max-width: 340px;
            border-left: 4px solid var(--primary);
            opacity: 0;
            transform: translateX(30px);
            transition: all 0.35s cubic-bezier(0.25, 0.46, 0.45, 0.94);
            pointer-events: none;
        }

        .custom-toast.show {
            opacity: 1;
            transform: translateX(0);
            pointer-events: auto;
        }

        .custom-toast .toast-icon {
            width: 36px;
            height: 36px;
            border-radius: 50%;
            background: var(--primary-soft);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--primary);
            font-size: 1rem;
            flex-shrink: 0;
        }

        .custom-toast p {
            margin: 0;
            font-size: 0.85rem;
            font-weight: 600;
            color: var(--text);
        }

        .custom-toast small {
            display: block;
            font-size: 0.75rem;
            color: var(--muted);
            font-weight: 400;
        }

        /* ========== Utility ========== */
        .text-primary-custom {
            color: var(--primary) !important;
        }

        .bg-primary-soft {
            background: var(--primary-soft) !important;
        }

        .fw-700 {
            font-weight: 700 !important;
        }

        .fw-800 {
            font-weight: 800 !important;
        }

        .mb-0 {
            margin-bottom: 0 !important;
        }

        .mt-0 {
            margin-top: 0 !important;
        }

        .gap-16 {
            gap: 16px;
        }

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

/* roulang: framework shim */
/* 覆盖 Bootstrap 等对 a/btn 的全局默认，避免导航出现下划线/蓝链 */
.site-header a,.site-header a:hover,.navbar a,.navbar a:hover,.nav-links a,.nav-links a:hover,header nav a,header nav a:hover{text-decoration:none}
.site-header .btn,.navbar .btn,.nav-cta{text-decoration:none}